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Small and Parkes Ltd.,

5th April 1968, Page 82
5th April 1968
Page 82
Page 83
Page 82, 5th April 1968 — Small and Parkes Ltd.,
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Which of the following most accurately describes the problem?

Hendham Vale, Manchester.

WITH the brake shoes removed and the old linings cut off it remains for the new liners to be riveted in position. Riveting can be carried out by the blacksmith method—peening the tail of the rivet with a ball-peen hammer --but this is often wasteful of rivets, and without a certain degree of skill produces quite inaccurate results.

It is too easy when hand riveting to distort the liner so that it does not sit snugly upon the shoe and this, of course. is completely unacceptable as far as braking fficiency is concerned. Even where the tier is successful in bedding the liner cor.ctly there is always the chance of the shear rength of the rivets being reduced because ley are not completely filling the holes in the loos allowing an initial degree of movement. Small and Parkes offers two riveting malines which will accept all kinds of shoes and ill complete the job in a uniform and correct 'armor with the minimum amount of skill on the part of the operator. One of these units is manually powered and is eminently suitable for the medium-sized fleet which undertakes its own relining operations. It is supplied complete with seven sets of riveting anvils and punches. The anvil bed is formed by a heavy screw which allows it to be adjusted over a range of 4in. The riveting head is powered through a lever and cam and is sprung to the retracted position. The second model is pneumatically powered and is designed for almost continuous production as found, for instance, in a large bus undertaking. On this machine the anvil is carried on a powered ram while the punch is held stationary in an adjustable head. The advantage of this machine is that the operator has both hands free to hold the shoe in position, the anvil being raised by air pressure through a pedal controlled valve.

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Locations: Manchester

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