. Railway mechanical engineer . NGING CLAMP Tlie accompanying illustration shows a i)late Hanging clampon which tlie clamping beam is not only raised and lowered byair pressure, but also clamped by this means. The machine isbuilt by the Niles Bement Pond Company, New York. On pre-vious designs the top beam was elevated by air pressure, but itwas clamped by means of screws with hand-wheels. The upper beam is moved by four cylinders. There are twolower and two upper pistons, the lower ones being used forelevating and lowering and the upper ones for clamping thebeam. These operations are all cont
. Railway mechanical engineer . NGING CLAMP Tlie accompanying illustration shows a i)late Hanging clampon which tlie clamping beam is not only raised and lowered byair pressure, but also clamped by this means. The machine isbuilt by the Niles Bement Pond Company, New York. On pre-vious designs the top beam was elevated by air pressure, but itwas clamped by means of screws with hand-wheels. The upper beam is moved by four cylinders. There are twolower and two upper pistons, the lower ones being used forelevating and lowering and the upper ones for clamping thebeam. These operations are all controlled by means of a three-way valve. The corresponding cylinders are designed to operatesimultaneously. The upper beam is bc-iil in macliined slots in exert an effective pressure of 15 tons at an air pressure of about80 lb. per square inch. SAFETY HOSE CLAMP The liose clamp shown in the illustration was originallydeveloped for use witli its oil burning equipment by the MahrManufacturing Company, Minneapolis, Minn., and was in-. Clamping Sleeve Used in Safety Hose Clamp tended to eliminate the danger arising from failure of thetype of clamp now generally used. These clamps are made for all sizes of hose and provide a safe coupling for use with
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
