. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 11—Unit pipe. No. —Unit pipe, No. —Pipe —Pipe —Unit clamp. 16—Unit bolt (for through bolt header).16.\—Unit bolt (for tee bolt header).17—Unit pipe end —L^nit clamp bolt —Unit bolt nuts (hexagon faced).20—Damper cylinder, —Damper shaft bearing, —Damper shaft bearing, —Damper cylinder —Damper cylinder —Damper cylinder arm, —Damper cylinder arm, —Damper —Damper —Damper shaf
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 11—Unit pipe. No. —Unit pipe, No. —Pipe —Pipe —Unit clamp. 16—Unit bolt (for through bolt header).16.\—Unit bolt (for tee bolt header).17—Unit pipe end —L^nit clamp bolt —Unit bolt nuts (hexagon faced).20—Damper cylinder, —Damper shaft bearing, —Damper shaft bearing, —Damper cylinder —Damper cylinder —Damper cylinder arm, —Damper cylinder arm, —Damper —Damper —Damper shaft —Damper —Damper pipe union (2 per set). dius of the ball end of the unit pipe isapparent, and clever devices have beenperfected to meet this requirement. and 6 illustrate molds where grindingspheres of lead or hard babbit may bereadily made, the use of which insure theuniformity of contour. The mold con-sists of three parts—the base in which thespherical grinder is cast, and the top partnf tlie mold which may be used with. FIG. 6.—MOLD SET UP FOR CASTING GRINDING SPHERES FOR SEATS IN HEADERS. cither base. A chuck is provided, whichwill hold either the cup or sphericalgrinder, the chuck having a shank suitablefor use in an air motor; or a hand brace,the application of which produces perfectlycorresponding joints in a very short most recent improvement in con-nection with the use of superheated steamis the application in a readily adjustableform of the pyrometer, whereby the en-gineer can, at all times, be informed asto the temperature of the steam chest. Inorder to secure a reliable instrument for
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