Brake for a 5 ton Cannon
Well, actually, it is a 1:10 scale model of a 5 ton cannon. The model weighs around 5-10kg at a guess.
The brake is to control the descent of the barrel/ carriage down the 4º slope of the 5 meter long chassis.
On the original, the brake was a steel band on a steel drum which was attached to the big gear.
This is how it appears on the scale model..
I was a bit apprehensive about this job. The lever is very close to 2 gears. the steel belt has to be properly tensioned, because the degree of movement of the control lever is quite restricted. And the width of the band has to be slightly less than the 5mm groove on the drum.
But, I found these…..
So, for once, my apprehension was not warranted. The job was fiddly, but no major mistakes!