Calthorpe ad, 1921
Tuesday, January 21, 2020
|Norman R. Ball, Mind, Heart and Soul Professional Engineering in Canada 1887-1987, National Museum of Science and Technology, 1987|
When it needed replacing, the end sections were replaced by fill while the centre portion was replaced by a 600 foot steel bridge.
Monday, January 20, 2020
Here's another mystery tool sent in by a reader. Possibly some sort of scraper, though it is heavy enough it might be used as a chopper of some sort?
The manufacturers name is unfortunately obscured due to corrosion.... B? Something & Sons?
Any guesses as to this tools use?
Sunday, January 19, 2020
This CAMS 38, powered by a 360 hp Hispano Suiza, was entered by the French for the 1923 race. The slowest of four qualifiers, with Maurice Hurel as pilot, the results state "gave up on second lap". Another source says "retired with engine trouble".
An English farmer, a Mr Prior came up with the concept, the idea was commercialized by Ernest Doe. Two Fordson Major tractors minus front ends were joined together with a pivot, the front tractor became the steering, activated with hydraulic rams. The rest of the controls were activated mechanically, some at first having to be set manually. As the years went by, the layout became more sophisticated till everything was controlled hydraulically from the rear tractor seat. Interesting way to get a 100+ hp tractor for heavy farm duties like plowing. They were built from 1959 to 1973.
Saturday, January 18, 2020
Friday, January 17, 2020
Not the best section drawing... the most important detail, the crankshaft isn't shown!
There had been other parallel twin motorcycles by other manufacturers but in 1933 Triumph introduced this Val Page designed 650. Bearing the designation 6/1 it was designed as a sidecar hauler and worked well.
Probably due to the depression it never sold well, it was discontinued in 1936, paving the way for Edward Turner's Speed Twin.