. Railway mechanical engineer . eans of the adjusting screv. on the column of theradius attachment, the pivot of the radius arm may be raisedor lowered on the column to provide for a range of linkradii from 35 in. to 63 in. After the radius arm has beenadjusted to the proper length in the pivot block, the finaladjustment of the height of the pivot is made with the hand-wheel so that the grinding wheel may be passed through thelink, and the work fed against it. The machine was built at a nominal cost of about $50,most of the material used being selected from available was built in the
. Railway mechanical engineer . eans of the adjusting screv. on the column of theradius attachment, the pivot of the radius arm may be raisedor lowered on the column to provide for a range of linkradii from 35 in. to 63 in. After the radius arm has beenadjusted to the proper length in the pivot block, the finaladjustment of the height of the pivot is made with the hand-wheel so that the grinding wheel may be passed through thelink, and the work fed against it. The machine was built at a nominal cost of about $50,most of the material used being selected from available was built in the shop at such time as the labor could bespared from the regular work. With this machine, workthat originally required from two to three days draw filingby hand, may now be done with better results in two hours. GAP RIVETER FOR STEEL CAR REPAIRS BY APEX The gap riveter shown in the illustration is used for rivet-ing sheets in open steel cars on a South African railway. Itis made up of a 5-in. pipe bent as shown and in the ends of. Gap Riveter for Repairing Steel Cars which are placed the anvil and air operated plunger. It ishung on a cradle made from l/2-in. by 1-in. bar iron with bossed ends for the trunnion pins. These pins are containedin clamps made of Syi-in. by 5-in. material. These clampsare bolted securely to the pipe and are so placed that themachine is nicely balanced. The riveter is supported by achain hoist on a crane by a shackle at the top of the cradleso that it may be adjusted to any desired position. Whileit is not claimed that this riveter will j)erform the workfaster than when a hand riveting machine is used, it is mucheasier for the workmen and a better rivet is made. It hasbeen found to be especially advantageous where heavy re-pairs are made or new work is being done. AIR PRESS FOR ROD BUSHINGS ANDDRIVING BRASSES BY E. A. M. A convenient air press which can be made in most anyshop and which has been found particularly serviceable inrod and driving box work,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
