Canadian Inventions In The 1920's

Joseph-Armand Bombardier: Snow Machine, 1922

- - It was a car engine mounted on a sled with a huge wooden propeller and ropes tied to the sled runners for steering, the propeller stuck out of the back so there was little safety for passengers.

- - In 1929 he designed a snow car out of a model T Ford which he was inspired to make after he wasn’t able to reach the hospital through the snow and his son died

- - The snow machine had some faults (ex. The front engine made it too heavy) so he improved the design by moving the engine to the rear to better distribute weight

- - The major improvement he made was the tooth-wheeled sprocket covered in rubber in 1935, his patent for the device was accepted in 1937 (Pictured Below)

William Samuel Stephenson: Wire Photo, 1922

- - He was very interested in broadcasting and wanted to find a way to send pictures over the air so he came up with a theoretical solution but was unable to get financial support in Canada so he set off to England to develop his solution.

- - He was able to get an investment from two companies and the London Daily Mail heard about his work and were able to set him up to work with research chemist, Professor T. Thorne Baker

- - They worked together to modify the 1884 Nipkow machine and made a device that could convert light into electrical currents

- - The London Daily Mail was given the honour of publishing the first wore photo on December 27 1922 because of all their support

Edward (Ted) Samuel Rogers: Battery-less Radio/AC Tube, 1925

- - In 1924 he developed 15S alternating current simple rectifier tube which allowed radios to run off 110-volt house electricity sockets rather than large batteries

- - Then he and his engineering team built the first all-electric radio operating with 5 Rogers AC tubes and the Rogers B-eliminator power unit.

- - He was later able to get both his inventions patented.

- - Pictured below is the first advertisement for his invention.