New Production Equipment
Page 49
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AMONG the outstanding features of a new hydraulic press introduced by W. H. Marley and Co., Ltd., 105 High Road, London, N.11, are its ihree operating speeds in both directions, adjustable trip for short-stroke operation, and foolproof pre-set pressure control. This Marlco press is made in three sizes having respective working pressures of 9, 20 and 50 tons.
When the press is being operated at the slower speeds, the control handle can be used to provide a fast approach or return, which saves a great deal of time. Incorporated in the design of the press is a patented pressure-control device, which enables the operator to concentrate on the work he is doing.
The standard machine is arranged for 440 v.. 3 phase, 50 cis. supplies. The 9-ton model sells for £208, and the 20-ton machine for £252. The price of the 50-ton model can be obtained on application to the makers.
Grinding up to 480 brake shoes an hour is possible with the use of a machine made by Arthur Scrivener, Ltd., Tyburn Road, Birmingham. A feature of the machine is that the shoe is brought into contact with the periphery of the grinding wheel, instead of the side. It is claimed that this method enables a much more accurate finish to be obtained than with previous methods using a conventional grinder.
The bedding-in time is reduced and the machine is of particular value when shoes are supplied for replacement purposes.
Machines have been supplied for grinding shoes varying in diameter from 7 in. to 16 in. and in width from lj in. to 5 in.