Levers Control Bike Brakes
A FRONT wheel brake, operated from the handlebar and a two-speed rear wheel coaster brake, operated by a lever mounted on the frame, have been developed for bicycle use. The rear brake has a change speed gear which provides extra power on hills, quick pick-up, and more speed. Photo shows fingertip controls.
BE A FROGMAN!
Join the new national FROGMAN CLUB today. All you have to do is send $1.00â€”be sure
to include your name and addressâ€”and here’s what you get:
1) A miniature pair of Frog: Feet. Can be worn on key chain, lapel or hung on windshield as lucky charm.
2) An attractive membership card.
3) A Frogman decal to be used on your windshield, bicycle or notebook.
4) A booklet on “How To Swim Underwater” and “The Supreme Sport of Spearfishing”.
5) Periodic bulletins on the latest developments in Frogman equipment and news.
6) Complete catalog of Frogman equipment available for purchase.
7) A free coupon for $1.00, which can be used toward the purchase of a pair of regular size Frog Feet, $6.95 or equivalent in value. This is redeemable at your local sporting goods dealer, drug store, auto supply store or toy departments. If no such dealer available in your area, we will handle direct.
BE A FROGMAN â€” Send your dollar today!
Sea-Net Mfg. Co, 1428 Maple Avenue. Dept. PM-1, Los Angeles, 15, Calif.
This reminds me of Cartman. I can totally see that cop screaming “Respect my authoritah!”
Police Traffic Squad Rides Motor Scooters
A SPECIAL traffic squad mounted on powered scooters is a feature of the Police Department of Inglewood, Calif. Use of the scooters, which can travel at a speed of 30 m.p.h. and cruise for 130 miles on a gallon of gasoline, enables policemen to patrol longer beats more efficiently than they could shorter beats on foot and has decreased the number of cases of motorists who try to “beat” traffic lights at street intersections.
I never go anywhere without my asbestos parasol.
Styles for Cold and Heat
RIGHT, Wiley Post, world-girdling flyer, in a suit built for stratosphere trips. It is airtight and connectable to a super-charger on his engine; and will stand 100Â° below zero. Below, a London fireman in the newest asbestos suit to keep out flame. It seems like a case of extremes meeting.
Gyro-Wheel Car Zooms Along On Giant Tires At 116 m.p.h.
RADICAL in design, a pleasure vehicle, known as the “gyrauto,” has been introduced in Europe to replace the orthodox type of automobile in use today.
Designed by Ernest Fraquelli, young Italian engineer, the gyrauto is said to be capable of attaining a speed of 116 miles per hour and to operate at a much lower running cost than do more conventional cars. Seats, engine and all controls are suspended between two huge rubber-tired wheels which revolve as the car moves forward. There are accommodations for an extra passenger in addition to the driver.
The unusual piece of apparatus was demonstrated recently in Brussels, Belgium.
Fraquelli’s unique vehicle is similar in general design to the Dyno-Wheel motor bus featured on the cover of this issue of Modern Mechanix and Inventions and described on page 87.
I just love this picture. She looks like she’s about to run someone down.
Motorcycles Crash Without Danger
MOTORCYCLES designed for use by novices in amusement parks or at fairs or carnivals are mounted in rubber cushioned frames that absorb the shock when riders crash into each other.
The rubber-protected frame is mounted on casters and fastened rigidly to the motorcycle to prevent tipping.
Riders get all the thrills of motorcycling here with absolute safety both for themselves and the expensive machines.
Hand Light Aids Night Driving
The confusion over driving signals when motoring at night is largely eliminated with a new device which straps to the back of the hand.
A rubber half glove is fitted with a red reflector of Bohemian glass which makes hand signals easily visible at all ordinary distances.
Neon Signs Identify Police Patrol Cars
Police cars assigned to the park districts of Chicago, Ill., are now fitted with roof-top neon signs so that motorists may identify them on the road at any time during the day or night. Within park areas, the police automobiles travel at legal speeds so that drivers may spot them and judge their own speed accordingly. Even in heavy fog, the rooftop signs are easily visible, as shown in the photograph reproduced
at the left.
This reminds me of the ill-fated Rotary Rocket company.
Daring Rocketmen to Invade the Stratosphere
The rocket-shooters are going to pitch in again this coming summer. Undaunted by reverses and tragedies during the past year’s experiments, the rocketeers are tackling their work with renewed vigor and ambition, plus improved apparatus and chemicals.
Ernst Loebell, famous German engineer and rocket designer, promises to bring the rocket engines to their greatest point of achievement next summer. He is now in this country and is an active worker in the Cleveland Rocket Society.
Loebell has been carrying on bis preliminary experiments on the big Hanna estate in a suburb of Cleveland. In their operations the Cleveland group has been making use of the lessons taught by the experiments of Loebell’s countryman, the late Reinhold Tilling, a noted radio engineer and rocket builder.
Prior to his death. Tilling had been experimenting with rockets and rocket planes for months. The success of a rocket which reached a height of (6,000 feet in 1931 spurred him on to the construction of a rocket with glider wings which unfolded when the fuel was exhausted and brought the projectile gently to earth. This feat was hailed as one of the first practical steps toward the development of mail and passenger carrying rockets.
The Tilling rockets were set in motion by telignition from a distance of 100 yards. They attained a speed of 700 miles an hour and landed five miles from the starting point, in accordance with calculations. Herr Tilling was working on a system designed to manipulate his rockets by radio control when he and a female assistant were killed in the explosion of a rocket which they were charging.
Build your own JET ENGINE!
Order these plans today
1. Jet Propelled Bicycle, Assemble your own. Photo and instructions, $1.00
2. How to make experimental jet engines. Seven sheets drawings with information and instructions $2.95
3. Both of above in one order $3.75.
SEND NO MONEY. Order both at once $3.75 C.O.D in USA plus c.o.d postage.
Send check or Money Order and we pay postage. Get other information too. Rush Order.
J. Houston Maupin, Dept. 55, Tipp City, Ohio