rtbcomp
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This is the Qualcast-Webb Patent Glass Crusher so far.
General view:-
The bottom roller assembly is a Webb Whippet 10 inch lawnmower, the top roller assembly is a Qualcast Panther (I think) Electric.
The top roller pivots about the front rollers and the two rollers are held in contact by the spring in the centre of the picture.
I've added a cover and hopper assembly (two cold water header tanks) :-
The hopper is a loose fit so it bounces about and feeds the broken glass into the rollers.
The large pulley is from a washing machine, it was a perfect fit onto the roller shaft. The cutting blades were disconnected on both mowers. (I decided the thing was lethal enough without a pair of blades whirring round too).
The drive belt is from a tumble drier, and the motor is 1/3 hp which I've had sat on my shelf for a few decades:-
The rollers rotate at approx. 430 rpm, about twice the speed when mowing at walking pace.
It works a treat, but the spring connecting the two roller assemblies is critcal, too slack and the lumps of glass force the rollers apart, too tight and the drum gets damaged :-
When it's perfected I'll make a frame so I can use it inside, the whole thing is held together with springs and a ratchet strap and can be dismantled or assembled in 2 or 3 minutes.
Out of the picture the Webb's handle is located in a V cut into the channel to prevent fore and aft movement and I ground slots in the tops of the channel sides for the sideframes of the mower to sit in to limit sideways movement.
General view:-
The bottom roller assembly is a Webb Whippet 10 inch lawnmower, the top roller assembly is a Qualcast Panther (I think) Electric.
The top roller pivots about the front rollers and the two rollers are held in contact by the spring in the centre of the picture.
I've added a cover and hopper assembly (two cold water header tanks) :-
The hopper is a loose fit so it bounces about and feeds the broken glass into the rollers.
The large pulley is from a washing machine, it was a perfect fit onto the roller shaft. The cutting blades were disconnected on both mowers. (I decided the thing was lethal enough without a pair of blades whirring round too).
The drive belt is from a tumble drier, and the motor is 1/3 hp which I've had sat on my shelf for a few decades:-
The rollers rotate at approx. 430 rpm, about twice the speed when mowing at walking pace.
It works a treat, but the spring connecting the two roller assemblies is critcal, too slack and the lumps of glass force the rollers apart, too tight and the drum gets damaged :-
When it's perfected I'll make a frame so I can use it inside, the whole thing is held together with springs and a ratchet strap and can be dismantled or assembled in 2 or 3 minutes.
Out of the picture the Webb's handle is located in a V cut into the channel to prevent fore and aft movement and I ground slots in the tops of the channel sides for the sideframes of the mower to sit in to limit sideways movement.