A LETTER lies on my desk. It is from a young man in California who wants me to tell him how he can become an inventor. To mind comes a picture of Alexander Graham Bell, white-haired, kindly. A young newspaper reporter had asked him a similar question.
Why the Parsons always had the Money to do What They Wanted
How To GET AHEAD
WHY, I can remember,” remarked Mrs. Kirk, “when they got married. Bill Parson was just a cub reporter on the Courier. He used to solicit classified advertisements on the side. They boarded and Amy kept up her work as stenographer for over a year.
ANYONE with money available for investments will find the booklets listed below of help in getting ahead financially. You may obtain any of these booklets by writing direct to the issuing house. It will be appreciated if you will mention POPULAR SCIENCE MONTHLY when writing for booklets.
AT THIS season of long winter evenings and Christmas present buying, radio figures prominently in the minds of a lot of people. But, in solving these three problems, it offers a knotty problem all of its own—that is, what radio apparatus to buy?
A Story of Sir Alan Cobham, Who Rides Roaring Winged Steeds to Glorious Adventure
ROBERT E. MARTIN
AS THIS is written there comes to America a knight who, in fearless conquest and romantic adventure, can match the exploits of any hero who graced the Round Table of King Arthur of old. For coat of mail he has sheathed himself in the helmet and goggles of an aviator.
Mysterious Cathode Rays Make Rocks Glow, Turn Gas to Yellow Powder, and Kill Germs and Insects
What Will Tomorrow Show?
HYATT E. GIBSON
ONCE again an Aladdin of science rubs his magic lamp and holds the world in wonder. This time he is Dr. William David Coolidge, already famous for his invention of the modern high-powered and portable X-ray tubes, and now the creator of an amazing new instrument that may rank with the discovery of the X-ray in its importance to mankind—a new tube for the production and use of powerful cathode rays.
Wood, Coal, and Corn Are Other New and Strange Gasoline Substitutes
JOHN E. LODGE
AN AUTOMOBILE that burns wood instead of gasoline, one of the strange type recently designed by the French inventor Imbert, has just been purchased by the U. S. Bureau of Standards in Washington, D. C. This remarkable car, which runs on the coal-gas produced in its own woodor coal-burning furnace, represents one of many attempts that engineers and chemists are making to provide new motor fuels against a predicted future shortage of gasoline.
Why You Can't Trust Your Eyes While You Watch Spectacular Effects on the Screen
THE camera never lies, they say. And yet— You see the cowboy hero of a Western movie thriller, pursued by a bandit band, spur his spirited steed to a canyon's lip. Horse and rider seem certain to plunge a thousand feet to destruction. And then, just when you gasp in horror, the horse gathers his legs together, leaps high in the air and clears the abyss.
Great Ones,But the Average Today Is Compare with Modern College Men?
“WHY, when I was in college. . . . ” No need to go further. You know the words and music of the song that the old grad loves to sing. Its burden is ever the same—that in these soft and effeminate days we don’t grow the sort of men who used to wear the dear old Black and Blue.
Leaders in Many Fields of Science Forecast an Amazing Future for Us
Medicine and Surgery
Geology and Mining
A Year of Thrilling Revelations Ahead of Us!
Steam and Power
THE invention of the microscope made possible the epochal work of Pasteur, which brought about the popular recognition of the role of microorganisms in the causation of disease. As a residt, the scourges of contagious and infectious diseases have nearly disappeared in civilized countries.
Probably from the Man Who Sneezed in the Street Car, Answers the Doctor— What to Do for a Speedy Cure
An Expensive Ailment
IF I were to list all the times in my life that a stuffy nose and watering eyes have interfered with my business and social affairs, spoiled my pleasures, ruined plans and temporarily blunted my ordinarily good judgment in professional matters—I’d have to conclude that the net result would place the common cold at the top of the list of all the serious illnesses I’ve ever had.
Invents Novel New Phonograph Record That Plays Forty Minutes
ALDEN P. ARMAGNAC
WHEELS and cogs, pumps and dynamos—these were the parts of a remarkable impressionist portrait of Thomas Alva Edison sketched a few weeks ago by Rafael, Argentine artist. “All mechanical,” was Edison’s amused comment as he smilingly accepted the artist’s gift of the portrait.
New Things We Are Learning About The Mysterious Power of Music
We Can Work Harder, Think Faster and Feel Happier to Quick-Rhythm Tunes—A New Aid in Hospitals, Industrial Plants, and in Our Homes
Has It Happened to You?
EDGAR C. WHEELER
A FEW weeks ago I was visiting at the home of friends, when the hostess suggested playing a few selections on their new phonograph. “But first,” she said, addressing me, “how do you feel?” “First rate—but why do you ask?” I replied, somewhat astonished.
Nation-Wide Survey by Popular Science Institute of Standards Shows None Willing to Go Back to Coal
What the Survey Shows
IN LINE with its aim to give the readers of POPULAR SCIENCE MONTHLY maximum service, the Popular Science Institute of Standards recently undertook the most comprehensive investigation of oil burners that has yet been made. Investigators have gone into nearly 1500 homes in widely scattered sections, where oil burners are actually in operation, to determine the comparative value of various makes of oil burners in relation to each other and to the coal-fired furnace.
The Story of a Boy’s Fight for His Idea Against the Greatest Railroad Minds of His Time
When This Ship Yawns, It Swallows Whales!
H. C. NORTH
Perhaps no great invention ever had as strange a beginning as young Westinghouse’s. He owed his success to the gentle eyes of a girl he saw only once in his life
A LOCOMOTIVE whistle shrieked in sharp warning. Brakes grated, smoked and groaned. Coaches jostled each other angrily, straining at their couplings, threatening to break from line and stampede across the fields. Puffing, balking trembling, the train came slowly and haltingly to a full stop.
Why George Washington Had Two Birthdays, and Why the World's Dates Need Fixing
FRANK PARKER STOCKBRIDGE
GEORGE WASHINGTON was born on February 22, 1732. Thirty days hath September, April, June and November. What’s wrong with those statements? Every schoolboy knows they are correct. But— The first one is all wrong, and the second will be wrong within a few years, unless the present world-wide movement for calendar reform breaks down from some unforeseeable reason.
Points to Watch in Choosing Your Lamps and Fixtures—Don't Stint on Wiring
ARE YOU PLANNING TO BUILD?
Two Views of the Same Kitchen, Showing Bad and Good Lighting
JOHN R. MCMAHON
HOW much light do we need for our house?" asked Ellen. "How long is a piece of string?" I countered. “Do you mean to say.” retorted the attractive young woman who is mistress of a brand-new house, “that there is no truth in the claim that lighting has been revolutionized since the days when Abraham Lincoln read books by the flare of a pine knot in the fireplace?”
Amazing Models, Put through Paces in Wind Tunnel, Solve Riddles of Balance and Speed
G. H. DACY
CLUSTERED about a marvelous electrical instrument in a laboratory in Washington, D. C., a group of engineers eagerly watch the flickering dials. Beneath the floor under their feet, a gale of wind roars through a man-made tunnel. In the center of the tunnel, communicating with the instrument in the laboratory above, is suspended a tiny airplane—a mere toy, only two feet in wing spread.
Serum for Measles, Electrified Farming and Other Advances
Sun Spots Make Us Healthier
Scientists Test Radio Echoes
Voice Filmed for Talking Movies
Trailing the First Americans
Strange Changeable Animal
Trace Sunken Atlantic Continent
Silent Sounds Guide Ships
A Goat Serum for Measles?
Not All Birds Shun Divorce
Her Feat Was Creating Nothing
A FEW weeks ago the Harvard University Astronomical Laboratory announced the discovery of a terrific cyclone on the sun, evidenced by an unusually great crowd of sun spots. If you are a radio fan you probably said, “There goes the chance of good long-distance reception this winter,” recalling the electrical effect of sun spots on the earth.
How Insects Give Us Shellac and Ink—The Head-Hunters of Borneo—Can Rain Be Made Artificially?—More Reviews of New Books
“Twenty Years in Borneo”
DID you know that the shellac on your hardwood floors was made by insects, called the lac insects, probably in India? Soon after these insects hatch out, they attach themselves to twigs of trees and proceed to shellac the branches, coating them with a resinous substance which is collected and purified, to become ground.
Six More Sam Loyd Puzzles to Help Measure Your Abilities—Your Ratings and Solutions on Page 136
Does Your Memory Play Tricks?
Have You a Good Sense of Direction?
Have You a Good Business Head?
Untying Word Knots
This One Takes Mental Agility
Have You an Eye for Line and Form?
Jumping the Disks
A Test of Clear-Headedness
“Pins and Areas”
Farmer Wilkins’ Cows
Complete List of Winners in August Picture Contest
FIFTY $5 PRIZES
All Climates Found in This Botanical Garden
VIEWING these seven black checkers as rows—vertically, horizontally and on the various regular diagonals—you see that seven rows have an even number of checkers, two or four. Where would you place three additional checkers, in centers of the small squares, so as to increase to sixteen the rows having even totals?
THIS surprising experiment consists of placing a glass of water in a hat, removing it under a bandana handkerchief, and throwing the whole over the spectators. The glass is found to have disappeared, and then to have traveled back into the hat!
VENOMOUS snakes are made to yield their poison, and for the first time a famous snake bite serum is being produced in the United States, at the New York Zoological Park. A few months ago Raymond L. Ditmars, curator of reptiles at the zoo, visited the largest snake farm in the world, at Sao Paulo, Brazil, to study methods of extracting the venom of poisonous serpents and making it into antitoxin.
Government Fabric Tests Tell Us How to Buy Clothes
WHAT makes some winter coats warmer than others? Uncle Sam’s Bureau of Standards has just completed a series of experiments to answer this question. The results have upset some of our pet notions about the warmth of the goods from which our suits and overcoats are made.
ON A crowded street in Baltimore, Md., the other day, passers-by were amazed to see a five-passenger car stop suddenly, move sideways, and slip smoothly and easily into a parking space less than two inches longer than the car itself! With the halting of his car, the driver had thrown out his clutch and moved a small gear lever.
HONORABLY retired from the Navy, the U. S. S. Amphitrite, a war vessel of the monitor type, has been converted into a palatial and luxuriously equipped hotel. The large rooms within are in striking contrast to the usual small cabins. Its dazzling whiteness and fluttering flags make the former monitor a picturesque sight off Beaufort, S. C., where it is anchored for the winter.
DOWN a steel wire to safety, supported in a safety belt, slides the user of this latest type of fire escape, produced in England. Trapped in a burning building, if you’re lucky enough to have this outfit on hand, you quickly attach the long wire cable to the window sill or any other support, drop the wire out of the window, and adjust the screw that fastens the belt to the wire.
BIGGEST of their kind in the world, four gigantic single-phase transformers have been built by the General Electric Company for the Pennsylvania Power and Light Company. In the photograph at the right are seen the coil and core of one of these mighty units.
MOTORISTS everywhere will follow with interest the experiments now being made by Bureau of Standards experts John O. Eisinger and Stephen A. Buckingham, to find why an automobile motor starts hard in wintertime. To simulate actual winter conditions for these tests, brine at freezing temperature is circulated through the water jacket of the motor and even the air supply to the carburetor is refrigerated.
OIL and grease on the machinist’s. hands make it a tricky job for him to fasten a cotter pin without slipping. The roughened surface of the improved cotter pin in the picture above provides a good hold, giving him a pin easier to grasp in the jaws of his pliers.
WITH almost human intelligence, a recently invented clock assumes the usual duties of a responsible housekeeper. At any time desired, the timepiece turns the lights in the home on or off. Besides showing the time of day, it has two additional hands to indicate the day and the month.
AT LAST locomotives have been fitted with speedometers, the swaying and vibration of the train having long hindered the accomplishment of this feat. Electrically operated, the new device employs a magneto run by the engine wheel. An indicator, calibrated in miles per hour instead of volts or amperes, is mounted in the cab.
AN ALL-PURPOSE tool combining several useful features is this odd-looking combination hammer and wrench. Its versatile jaws drive a nail or twist a pipe with equal ease. A right-angled claw removes nails even in cramped quarters. Round surfaces are firmly gripped with the Stillson-type jaw.
NEAR Death Valley, in California, there exists the unique paradox of a soap mine, which has recently given rise to the strange new industry of mining soap. From this mine is dug amargosite, a soft smooth rock, rather sticky. A lump of the mineral breaks up when shaken with water, making a soapy liquid having excellent cleansing properties.
TWO body-strengthening features are incorporated in the new massage exerciser above, the invention of Alwin Kost, of Portland, Ore. While the reducing rollers on the massage cradle (inset, above) are getting in their work on chest or abdomen, the muscles of the arms, hips and chest are being exercised on the hand bar.
YOU step into what looks like an elongated telephone booth, seat yourself, assume your best smile, and drop a coin in a slot. There is a whirring sound, powerful lights flash on, a shutter winks. You step out of the booth and a few minutes later a finished strip of eight photographs of you is delivered at the other side of the machine.
ABOUT the only way to find out if a golf ball was good, prior to the invention of the testing device below, was to play golf with it. This device consists of a swinging club which operates automatically, hitting the ball with predetermined force.
THERE is one city in the United States, at least, where street railway officials will not admit that the street car is becoming a back number. That city is Cleveland, Ohio. The Cleveland Street Railways have developed a new type of car which, by increased economy and efficiency, is expected to give busses and taxicabs a run for their money.
ARE North and South America drifting hither and thither upon the bosom of the ocean? That is what astronomers suspect, and propose to find out, with the aid of such instruments as that illustrated at the left. Longitudes are checked with incredible exactness by this instrument, which compares local astronomical time with standard time signals received by iadio, as part of a series of tests at San Diego in conjunction with stations at Algiers and Shanghai.
DURABLE paper currency can be made from the waste cuttings and stems of tobacco, it is reported from Europe. The waste from tobacco factories is first treated by a chemical process to render it tough and pliable. It is then run through special machinery to cut it fine and is used as a substitute for the more costly waste linen rags.
TEST yourself with the following twelve questions, selected from hundreds of queries sent in by readers of POPULAR SCIENCE MONTHLY. The correct answers appear on page 142. 1. Where are the oldest trees in the world? 2. What is the usual path of storms across the United States?
TO ELIMINATE one-eyed squinting through a magnifier to discern minute lettering on maps and drawings, army engineers have adopted these novel binocular “lorgnettes.” When held before the eyes, they make the smallest details of aerial maps and photographs plainly visible.
IN USING a new fire alarm recently installed in Birmingham, England, instead of pulling down a hook you speak into a mouthpiece connected to a loudspeaker in the fire station. Opening the fire box door automatically switches on the telephoning current.
THE problem of engine vibration, it is reported, has been met and conquered by a Swedish railroad engineer, Magnus Tacklind, of Stockholm. He has designed a railway motor car said to attain a speed of fifty miles an hour with no more noise than the clicking of the rails.
MOTION pictures of surgical operations in natural colors have been obtained in Berlin, Germany. A three color process is used. Reflectors concentrate powerful light on the operating table. The camera is self-cranking, the electric motor drive being controlled by an operator who watches the progress of the operation through a telescope.
TAKING a leaf out of the book of radio engineers, the manufacturers of this new tool grinder have produced an alternating current motor without special starting winding commutators or automatic switches. A condenser that is charged from the power line discharges the one coil in the motor.
VARYING the time-honored method of turning cream into butter, a French inventor has devised a new machine to accomplish the same result mechanically. In the device illustrated above, double pistons operated by the hand crank churn the mixture in the central chamber.
SPECIAL machinery for use in the manufacture of telephones by a great Eastern company is now being tested, when still in the design stage, by cardboard dolls. A cardboard doll with movable arms, legs and head, correctly jointed, has been carefully drawn to scale.
CAPABLE of being put together or disassembled in a few minutes, the odd-looking “glide boat” illustrated below is a new product of German invention. The craft is entirely homemade, even to the two pontoons, fashioned out of stovepipe, that buoy it up.
FOR the man accustomed but not resigned to shaving in poor light, the shaving mirror at the left offers the pleasant novelty of “a light that shows up every hair on the face.” Light from a lamp concealed behind the mirror is reflected upward on the face, the lamp being thus safely shielded from the eyes.
THE wear on the average motor car is far more severe in winter than in summer, despite the fact that the car usually is run comparatively little in cold weather. There are two main causes for this. One is that the choke must be used for several minutes in starting up because the motor is so cold, resulting in excessive crank case dilution and consequent poor lubrication.
LIKE the old miner's gold pan, which washed gold from sand and rock, is the concentrating and amalgamating machine pictured at the left—except that it’s entirely automatic and adapted to the high-speed requirements of modern mining methods.
SO POWERFUL that it can crumple a huge steel I-beain as if it were made of cardboard, this Hercules of machines, at the right, the largest testing machine in the world, can exert a crushing force of 10,000,000 pounds! No conceivable stress to which a girder might ever be subjected could eyen approximate this force.
FLAPPING galoshes are no longer the swagger thing in feminine winter footgear. Rubber spats that pull over the stockings, covering the whole leg, are a new offering of a thoughtful inventor. They button snugly.
THE invention of a new photographic film, said to be equally sensitive to all colors, is expected to bring about interesting changes in motion picture work. No more heavily plastered makeup may be necessary for the actors, and the director will be able to arrange the setting knowing that the scene will appear on the screen as it does to his eye In color photography, as well, the inven tion promises to make possible motion pictures in perfect natural colors.
A WATER pail as part of the portable equipment of the camper, fisherman or motor tourist, is possible now that one has been designed which folds into a flat, convenient size. As illustrated above, it has canvas sides, with a metal bottom and rods to keep it in shape when in use.
SUNSHINE may no longer be a requisite in hay-making, with the invention by Arthur Mason, of Chicago, of a new cropdrying machine. In a recent demonstration, one hour elapsed between the placing of fresh-cut, green alfalfa in the machine and the removal of dried alfalfa meal in bags.
SHIPS at sea may now receive not only radio weather reports but complete readymade weather maps as well, as a result of a new radio transmitting device. This instrument, invented by C. Francis Jenkins, of Washington, D. C., includes a receiver with a recording stylus that traces in ink the curves of the map being transmitted from a land station.
NONSKID checkers containing small horseshoe magnets are the latest novelty for checker players. The checker board is steel, so the magnetized pieces can’t slide while the game is being played. Kept in a steel box when not in use, the checkers are said to retain their magnetism indefinitely.
WITHOUT disturbing the normal flow of automobile traffic in the least, California engineers have succeeded in moving into place a new G,000-ton bridge to take the place of the existing structure. When the old bridge at Montebello, just outside of Los Angeles on an important intercity highway, had been prepared for speedy removal, the new span, already assembled, was pushed into place with powerful jacks.
LOCOMOTIVES that glide along in peaceful silence are one miraculous result of applying the Maxim silencer, war-time muffler of firearms, to industry. Eight American railroad systems have installed silencers of special design on their oil-electric locomotives.
JUST how much do your electric appliances—toaster, iron, and so on— cost to operate? A specially constructed test board was installed recently in a Montreal, Canada, department store to answer this question. When the appliance under test is plugged into the board, as shown in the photograph at the right, a dial shows the rate of consumption in amperes.
RECENTLY a series of plaster models of prehistoric creatures was made at the Natural History Museum, London, and from these, designs were made for an unusual set of small models to be reproduced in plywood. The models offer an excellent means to study the strange dinosaurs and mammoths that once roamed the earth, and many schools, particularly schools for the blind, have already adopted them for instructional purposes.
FOG is dissipated by high-voltage electricity from a new apparatus tested by government engineers, intended to make landing fields safe for aviators. A path 1,000 feet high and 2,000 feet wide, it is said, can be cleared by the machine. The device throws upward a blast of air charged with electricity, which, meeting the fog, precipitates it as rain.
ONE feature of handy cut-off saw at the right, a new addition to labor-saving machinery, is that the weight of its electric motor keeps the swinging saw arm out of the way when not in use. When work is to be done, a convenient hand lever pulls forward the whirring blade and slices off any desired length of lumber with swiftness and precision.
Acrobatic Auto Rolls Over Sideways, Even Loops the Loop
THE audacious young automobilist, rolling along upside down, above, is Andre Mercier of Paris, France, and the vehicle with which he defies death is a little five-horsepower European motor car completely inclosed in a heavy steel cage. Not particidar about which side up he lands, Mercier makes his extraordinary machine stand on end, roll over the ground, or loop the loop at will, by putting on the front wheel brakes while driving at top speed.
SPECIAL harvesting machinery designed to end the reign of terror in Ohio’s farming territory of the European corn borer, evil genius of the “corn plague,” was tried out extensively in recent months in the infested areas. Since the pest hibernates in the base of the stalk, the harvesters are designed with extra low cutting blades to cut the stalk close to the surface of the ground leaving no stubble.
ARMS, hat, even the nose and suitcase of the fantastic figure at the left, carry warnings and directions for motorists who pass this strange signpost erected at a crossroads in Castine, Maine. The figure is made of wood, painted white, and seldom fails to attract tourists’ attention.
THE remarkable feat of changing hydrogen into helium, for use in airships, is reported by two professors of Berlin University, Germany. The process as described consists of the rearranging of the individual electrons within the atom, paring off the unnecessary ones, fine particles of metal causing this reaction merely by their presence.
MYSTERIOUS leaks and cross-talk on a New Jersey telephone line were traced finally to the hawk’s nest above. Made of driftwood and seaweed, the nest is impregnated with salt. In wet weather the salty moisture allowed current to flow from one wire to another.
WHEN Commander Richard E. Byrd flew to the North Pole last spring, the glare of the sun’s rays reflected from the limitless expanse of dazzling snow gave him an acute case of snow-blindness. Even in ordinary flights, aviators’ eyes suffer strain from light reflected from below, reaching their eyes at an unaccustomed angle and falling on a part of the retina that is little used to strong illumination.
ALL the vogue in London, “phantom dancing” has recently struck the United States. You’ll find ituncanny, unless you know the explanation. The dancers go through their steps perfectly and in exact rhythm, but no music is heard. Fitted over the dancers’ bobs, however, are radio headpieces.
TYPISTS who have all they can do to manipulate the forty-odd keys on the ordinary single alphabet typewriter may groan at the thought of a keyboard with 1,160 letters and forty alphabets. But this seemingly complicated keyboard on a remarkable new typewriter invented by Fred A. Dolph, of Washington, D. C., was designed especially to make writing easier and faster.
ANEW gyratory iron ore crusher has just been completed for use in the Michigan ore fields, which can handle 2,000 tons of stone in an hour and crush the rock to nine-inch size. It is the largest ore crusher ever built, and its entire weight is over half a million pounds.
WITH a broad hint on the banquet table like the device illustrated at the right, after - dinner speeches may lose their terrors and listeners may be reasonably sure that the speaker will not stretch his two minutes to twenty. A green light signals “start talking”; amber, “time’s nearly up”; red, “stop—moreover, sit down.”
WHITTLED almost entirely out of wood with a pocketknife, the remarkably complete working model of a locomotive illustrated at the left is the work of Edwin Nunn, of Cincinnati, O. It is a scale model, equipped with all modern improvements and in complete working order, even to the air brakes, which also function practically and are the only parts not made of wood.
ONE thousand pumpkin pie enthusiasts were provided with one piece each of their favorite delicacy when this enormous specimen was handed over to the pastry cook after being exhibited at San Leandro, Calif., recently by William Faustina, who raised it.
WITH the aid of an ingenious application of radio apparatus, devised for her by Frank Lester, of New York City, Mrs. Benjamin N. Fishman, of Richmond Hill, N. Y., can keep as careful a watch over her sleeping baby, while seated comfortably on the front porch, as though she were upstairs.
NEW discoveries about colored lights and their effect on human efficiency may have an important application in the illumination of factories and offices. In recent tests conducted in Vienna, it was found that under yellow light we see printed letters more accurately; under blue light, more quickly.
With the Right Kind of Equipment, Carefully Installed, Your Receiver Can Be Made a Marvel of Simplicity
What You Need for Radio Satisfaction
ALFRED P. LANE
TIMES have changed as far as radio installations are concerned. It is no longer good form for the man of the house to install a radio receiver that has a dozen or so complicated control knobs, and then make matters worse by connecting up the batteries and other accessories in such a way that no one in the family can figure out how to run the set.
It Cost Me More in the End Than an Expensive Set, in New Parts and Service Bills
"HENRY! Just read this wonderful bargain!” exclaimed the wife enthusiastically. She folded the evening paper to indicate the advertisement that had caught her eye and passed it across the table. “Humph!” I grunted noncommittally. “I thought you said you didn’t want a radio. What’s so marvelous about this one? Seems to have the usual number of gadgets on the front, as far as I can see.”
Rig Up a Sash Weight to Prevent Breakage—Locating a Hum—Other Helps
What Causes the Hum?
There’s No Cure for Fading
A B C’s of Radio
The Right C-Battery Voltage
WHILE it always is a good idea to use a single, continuous piece of wire for an antenna or for the lead-in, you may want to use some short lengths to make up a temporary antenna or to piece out an exceptionally long one. Twisting the wires together in almost any fashion will do as far as getting electrical contact is concerned, provided that the twist is tight; but more care than that must be taken if the joint is to stand the strain produced by a severe windstorm or by sleet deposited on the wire.
Here's a New Test of Your Auto Knowledge—Win a Cash Prize
What’s Wrong with the Captain’s Car?
See If You Can Figure Out What Happened to His Motor
BLAMED if the old craft ain’t sprung a leak again!” muttered Captain Horne as a shrill hissing squeal indicated the sudden departure of the air from one of his rear tires. He jammed on the brakes and steered the car to the side of the road. “Reckon I’d better drop anchor here while I fix the dod-blasted ‘boloney’,” he grumbled.
Tire Inspection Made Easy—Sewing a Tube—Other Ideas
Stops Crank-Handle Rattling
Sewing Up a Blow-Out
Luggage Stored on Top
Ten Dollars for an Idea!
Plywood Lunch Kit Easily Made
Old Tube Fools Thieves
If Your Fan Pulley Slips
INSPECTING the inside of an automobile tire for nails or breaks in the fabric is made easier by the simple, homemade device sketched in Pig. 4. Plenty of leverage is supplied for spreading the beads. All you need to make the device is two boards of the dimensions given in the sketch, a hinge, two eyebolts and two strap iron hooks six inches long.
How to Build a Simplified Model of the Frigate CONSTITUTION
Full Size Drawings for Constitution Model
Complete List of Blueprints
WHO is there with a liking for things of the sea and a desire for beautiful decorations in his home who would not take delight in owning a model of “Old Ironsides,” the most famous ship that ever carried the Stars and Stripes? In her is embodied the spirit of the American Navy.
Easy Ways for You to Do Over Old Walls and Ceilings—How to Apply Finishes in Spanish, Monastic, Italian and Colonial Styles
E. M. OREN
IT WAS Eleanor’s notion that we do the living room over in a roughtextured finish. And the notion had deep roots and wouldn’t be denied. She hadn’t been back from California for twenty-four hours before she started to talk about the “jazz plastering” effects that she had seen there.
How to Cut and Decorate Them—Colonial and Modern Designs—Color Schemes
MARIE CHILDS TODD
VALANCE boards across the tops of the windows often will give a room just that touch of distinction necessary to raise it above the commonplace. The advantage of a wooden or wallboard valance is that it is easily cleaned, the colors may be retouched, and it outwears a textile valance.
How to Sharpen Tools for Use on Scale-Coated Cast Iron and Bronze— Roughing and Finishing—The Best Shape for Cutting Steel and Aluminum
ALBERT A. DOWD
"WHAT I’d like to know is whether there is any kind of a tool that will stand up long enough to bore these bushings!” Harvey exclaimed in disgust as he removed a boring tool from the lathe tool post and walked over to the grinder. Eight bronze bushings like A in Fig. 1 were to be bored and reamed and Harvey was using an ordinary forged boring tool, B.
Easy Ways to Build Four Styles of Decorative Hanging Bookracks
Stock Bill for Bookracks
HANGING bookracks are enjoying a renaissance of popularity. Interior decorators and those who set the fashions in furniture have given their approval to these decorative and most useful pieces. Sets of books, novels, magazines and other forms of printed matter accumulate with such amazing rapidity that the family bookcase is overflowing and the good housewife distracted with the problem of how to take care of the surplus and still keep the home looking tidy, especially when space and cupboard room are at a premium.
WHENEVER too much roofing cement is used in applying roll roofing, some of the surplus cement is apt to melt and run down the roof, making unsightly streaks. It is so hard to avoid getting too much cement in the joints that the cement is often omitted entirely.
MANY interesting toys, like the cat illustrated, may be made from pine cones and a few bits of wood. To make a cat, select a cone that is as nearly as possible the shape indicated in the accompanying drawing. The size of the head, legs and tail will be regulated by the shape and size of the cone.
Supervisor of Electric Work, Arthur Hill Trade School, Saginaw, Mich.
GEORGE A. WILLOUGHBY
I PUSHED the switch to start the washing machine and the motor made a sound as it usually does for a second or two. Then it stopped. What do you think the matter is?” This was the question that greeted me when I arrived home for luncheon one day recently.
TO DRAW out the ironing board illustrated, it is necessary only to pull it down from the top. It automatically raises at the base and slides into position, where it remains firmly fixed. There are no loose props or legs to give trouble. The board is built in a cabinet between two wall studs, which are commonly about 16 in. apart.
ANY home worker who wishes to join two wide boards for making a table top or something of that sort, and does not have the clamps necessary for doing the job with glue in the ordinary way, may find helpful a method that I have practiced at times with excellent results.
WALLBOARD or very heavy cardboard such as is used for large shipping cartons may be converted with very little effort into useful articles, such as the waste paper basket illustrated. Six side panels are required and six small pieces to tie the panels together.
IF THE design of the vapor pan in a hot air or “pipeless” furnace will permit, place a common porous building brick in the water container so that it stands upright inside the furnace jacket. There may not be sufficient room for the brick to stand straight; then it can be tilted at an angle toward the furnace, and, indeed, it seems to furnish more moisture in that position than when perfectly upright.
IN MANY old houses the coal stove is being removed from the kitchen and a radiator installed to heat the room. The problem of furnishing hot water is then solved by installing a tank and heater in the basement. Because of this change, it often happens that the house owner has on hand a good horizontal water boiler from the old range, but has to discard it and buy an upright tank.
DECIDEDLY novel and artistic is the book trough illustrated, yet it is of simple construction. A figured hardwood may be used if the piece is to be varnished, or a plainer wood if polychromed. The trough itself is made of two pieces ⅜ by 5½ by 12¾ in.
PRECIPITATED chalk is a white and very light powder, which can be obtained at any drug store. It is one of the preparations of chalk, the commonest and most familiar of which is sold under the name of whiting at all paint stores. Whiting is very cheap and its most common use is in putty used for glazing and filling nail holes and cracks.
IT IS surprising how many persons have little or no practical knowledge of the mechanism that balances the ordinary double-hung windows which they pull up and down every day. Consequently, when a sash cord breaks and the window fails to operate, they have to pay for the expensive services of a mechanic to do a job that can be done very easily by any home owner, whether man or woman.
MRS. ANDREWS, our neighbor, dropped in the other evening. “I’ve been saving these for you,” she cooed sweetly but with a roguish twinkle in her eye, as she unrolled a strip of paper that seemed about a yard long. “They're troubles!” “Troubles?” I repeated.
OLD BILL still felt a boyish thrill about being in another city. He had come a hundred miles to look at several machines that were for sale. Finishing his breakfast, he taxied out to the shop where he was to inspect one of the machines. He was a bit too early for the proprietor, so, from force of habit, he ambled into the shop.
ONE of the best types of hat and coat hangers for the mechanic is, in my opinion, that illustrated above. An ordinary coat hook is fastened near one end of a 4or 6-ft. stick. Just above the hook is a large hole, which allows the stick to be hung on a nail near the roof or ceiling.
ILLUSTRATED below is a little tool, somewhat similar to tongs, that is better than fingers or pliers for holding dowel pins when starting them in holes. It will hold a very short pin, and one of almost any diameter. The holder is made of two pieces of 1/16 in. thick flat stock.
IN DRAFTING I often find it necessary to use the extreme right-hand side of my table, which cannot be covered conveniently or efficiently with the T-square. This is often the case in working on large drawings, therefore I devised the simple expedient illustrated.
MANY shops use small rods for gages or length measures, yet it is difficult to store them without danger of bending them and destroying their accuracy. The illustration shows how small brackets may be fitted to the front of sheet steel shelving to hold the gages.
FAULTY alignment in drill presses is a common defect. When drilling in small jigs, this fault often causes the jig to shake or vibrate, if it is not secured to the drill press table. Clamping the jig to the table does not always provide a remedy, because the mal-alignment still exists and is apt to manifest itself in poor work and lopsided wear on the drill bushings.
SINCE the heavy duty spiral milling cutter of the alternate or staggered tooth type is coming into greater use, a few suggestions about the simplest way of resharpening it may be helpful. The two photographic illustrations show one of the cutters on the grinding machine; the arrows indicate the direction in which the cutter should be moved across the face of the wheel.
Automatic Scribing Device for Centering Shafts Quickly
FOR centering short shafts in one shop, an automatic V-block takes the place of loose blocks and a surface gage. The accompanying illustration shows the device in use. It is made entirely of sheet steel. There are two vees for supporting the work and at the working end is a hinge pin for a scribing point, so arranged that the point will rise and draw a line when the chalked end of a shaft is pushed toward the hinge.