A NEW device used to spread tear gas has been invented for cash. registers. It is called a "money trap" and discharges a dense cloud of gas into the thief's face when he tries to rifle the till. Formed and painted to duplicate a dollar bill, the box-like compartment fits snugly into the cash drawer. Upon its face is a clamp under which the regular bills are placed.
Something New in Speakeasies LEAVE it to Chicago to think up something new in speakeasies. The latest novelty in the line of whisperlows to make its appearance in the Windy City is a drinking fountain which gushes water when you whisper kind words into its mechanical ears. The inventor explains that the heart of the [...]
Graveyards Should Be Cheerful A CHANGE in public psychology which would do more for human happiness than any other is one in the usual attitude of fear and horror toward death, an eminent scientist recently stated. No small part of this usual attitude is due to the atmosphere of gloom, sorrow and decay in the [...]
Tail Light Like Neon Tube Prevents Smash-up in Rear HAVING the appearance of a glowing neon tube extending across the stern of an automobile like an illuminated bumper, a radically different safety tail light has recently been introduced which promises to reduce rear-end collisions to a negligible figure. Tubular in appearance, the light has a [...]
If that lady isn’t careful I’ll bet the coach would run fine on her as well. Coach Runs on Roads or Rails WHAT might be termed a land amphibian capable of traveling on road or rail has been developed by railroad engineers to put forth competition to the buses which now ply the highways, cutting [...]
A NEW JERSEY inventor has introduced a novel type boat with which he expects to attain highest speed with smallest output of power. Five double cone-shaped welded steel drums which may be seen in the photo above support the craft on the water. It is pushed along by a 65 horsepower airplane engine mounted on the steel framework above the after floats.
SCIENTISTS at Jena, Germany, have constructed one of the most amazing and odd-appearing measuring devices on record. It is an apparatus to measure the drift of the ether, that impalpable substance which, according to one school of thought, fills the space in which the universe swims. Theoretically the motion of the earth, passing through this ether, should set up a drift comparable to the breeze generated by the motion of an automobile through the air.
Permanents Dangerous to Brain A FATAL accident which suggests serious dangers in giving permanent waves has been reported to the French Academy of Medicine. Application of heat was left upon the victim’s head too long, resulting in an inflammation of the brain called Meningitis. People with high blood pressure, hardened arteries or abnormal brain conditions [...]
Tin Can Orchestra Makes Money THE tin can orchestra shown in photo on left was the invention of three New York boys who determined to beat the depression. Sixteen cans make up the orchestration. All are grouped according to the sound they emit. It is hardly exact to say they built a perfect chromatic scale [...]
Parachutes Save Victims Trapped in Burning Building THE latest wrinkle for persons trapped in a burning building comes from Berlin, Germany, where there has been developed a parachute to take the place of the slow and cumbersome type of fire escape. The device has proven highly satisfactory wherever used. The pictures on the right show [...]
“Electric Jewelry” for Milady NOW comes an electric light bulb to displace glowing pearls from earrings! The photograph shows a young woman apparently wearing a large pearl earring, but in reality it is a midget electric bulb run from tiny batteries concealed in ornamental coils around it. The bulb is frosted to produce a soft [...]
Traveling Comfort for the Dog ANYONE who has ever attempted a long motor trip on which a large dog was taken along will appreciate the “Bird-dog’s Palace,” recently placed on.the market. Made of sheet steel, insulated inside so that the animal will not come in contact with the metal, the “Palace” is so constructed that [...]
by PAUL R. RANNIE You fight real, deadly battles on a small scale in these fascinating war games, which have all the strategic elements of nation-against-nation campaign. Exploding battleships, forts and tanks and an accurate long - range mortar compose your fighting forces, built as described in this article. MANY of us have been fascinated by photographs or moving pictures of huge artillery pieces sending their shells screaming up into the air on their way toward a target perhaps out of sight beyond the horizon. The gunners usually do not see the target, but fire in a certain direction and at a certain elevation from data furnished to them. The toy mortar shown in the photographs and drawings will shoot small soft clay balls in the same manner as the big guns and with surprising accuracy. It can be used as the basis of some interesting games that will attract many of the older folks in addition to the youngsters. Easily constructed targets which explode (mechanically speaking) when hit, a moving target and others are also part of the equipment described.
Electricity Prevents Burial Alive WHAT is claimed as an infallible test of death has been proposed to the French Academy of Medicine. This test consists in applying electric heat to the leg or some other part of the supposedly dead body, using the modern device called a diathermy apparatus. Passage of the diathermy current raises [...]
Radio Set Is Mother of Chicks NOT to a radio expert but to a housewife, Mrs. Johannes Ronn, of Kansas City, Mo., goes the honor of putting to useful service the heat emanating from tubes in a radio set. What she did in effect was to make the set do duty as an incubator. She [...]
Report of Fake Revolver Frightens Away Auto Bandits PROTECTION against the motor bandit is the aim of this new gadget that looks like a regular pistol and fits under the steering column of an automobile. Actually, though, the weapon is operated by compressed air, yet without a bullet. The report is loud enough to frighten [...]
Steam-driven Wheels for Cars AN AUTOMOBILE carrying motors in its wheels is being perfected in a Chicago laboratory. Each wheel contains a six-cylinder engine fed with steam through the hub, and mounted eccentrically to the wheel proper. The piston rods of the steam wheel descend one after another propelling the car ever forward. An automobile [...]
Tailor’s Leg Cut Offâ€”He Builds Auto for One-legged Man WHEN Joseph Freedman, 44-year-old Philadelphia tailor, lost a leg in an accident, one of the greatest hardships he experienced was being unable to drive a car. Then old “Mother Necessity” was brought on the job, with the result that Freedman designed and built an auto which [...]
FILM discs replace ribbon film in a new type movie machine recently introduced. The device projects pictures from a film disc that greatly resembles a phonograph record. The disc measures 18 in. in diameter, which equals 1,000 feet of ordinary movie film. A unique optical arrangement allows the pictures to be transposed from standard sized motion picture films to be printed spirally on the disc.
Locked up in the atoms which make up all matter are tremendous stores of energy which, if harnessed, would yield millions of horsepower at a negligible cost. Read here about amazing advances made by science in its attack upon the atom and about the feat, recently achieved, of actually changing mercury into gold. by RUSSELL J. MORT IF SCIENCE succeeds in its current quest for a means of splitting atoms on a mass-production scale, and thus making it possible to utilize the tremendous energy bound up in the electron and proton, all the machinery which now furnishes our power may be thrown into the junk heap.
PROCEEDING on the theory that the sound waves produced by thunderstorms supply vibrations to the ear drums which will massage them and restore their normal functions, a New York ear specialist has perfected a machine which promises to give the deaf back their hearing.
Drawing Pictures Over the Radio Broadcast Is Latest Fad THOUSANDS of radio listeners are joining in on the fun of the latest broadcast noveltyâ€”drawing pictures over the radio. The artist in the studio sketches his model in front of the microphone, making the drawing on a chart ruled off into many squares. Radio listeners provide [...]
Slide Down Ropes to Safety in New Life Saving Device THAT life saving equipment need not be elaborate and expensive effectively to remove people from a burning building is demonstrated in the introduction in Germany of a new device called the “servitor.” The contraption consists of nothing more than a pair of stout ropes which [...]
Tear Gas Gun for the Wrist A TEAR gas gun effective enough to rout a gang of payroll bandits and small enough to be concealed in a coat sleeve has been invented by Elmer Carlstrom of Chicago, a retired policeman. The gun is worn strapped to the wrist, as shown in the photo below. A [...]
by WALTER A. RASCHICK No matter how clever you are, you can't beat the slot machine racket. If you play the game, you'll have to reconcile yourself to seeing your nickels flowing away in a steady stream, paying tribute to the engineering brains which have designed these mechanical pick-pockets so efficiently that they can't fail to keep half or more of the coins fed into them, giving the player nothing in return except the thrill of seeing his money vanish. "GOSH!" you've probably said more than once, as the symbols halted, hesitated, and then swung tantalizingly away from the center row, "I almost got the bells that time. Watch this one" â€”and out of your pocket and into the slot machine goes another hard-earned nickel.
This looks like it might be a Pandiculator. New Mechanical Chiropractor WITH a machine like the one shown he-low in your home, there’s no longer any excuse for headaches. At least, that is what the inventor claims for his mechanical chiropractor, which also is supposed to correct curvature of the spine, speed up the circulation [...]
Use Car Power to Grind Meat NOW you can operate your meat chopper, ice cream freezer, apple parer, or practically any other device turned by a crank without work or worry, thanks to the simple idea of an Illinois inventor. A strap iron strip just long enough to fasten between rim bolts on opposite sides [...]
Roulette Wheel, Ash Tray in One THE photo below shows a novel device for home use that will afford much amusement as well as usefulness. It is called the “roulette ash tray,” and was one of the innovations recently introduced in the Reichs Invention Union in Berlin. Although it has not the many different betting [...]
Wow! Who knew that Dancing and daylight savings time were responsible for tuberculosis? You learn something new everyday. The public health posters would be fantastic: “It’s all fun and games untill someone gets the consumption!” “Fall back and you may never spring forward again!” Too Much Dancing Brings T. B. RECENT scientific investigations have proved [...]
While this sounds like a vibrator, it actually just electrocutes “Milady” with a pair of spoons. An Electric Massage for Milady MILADY’S complexion will benefit immensely from an application of “juice” from this little massaging device. There’s no danger of shock, and the complexion will not suffer a charring from the current, so it’s all [...]