. American engineer . p glands is shown inFig. 4. The centering device, which fits in the head of the airpump cylinder, is fastened to the head by the cylinder headstuds which fit in the Ya, in. slotted holes. It is made from anold air pump head which has been planed to a width of 4 in. R Brass t-—3p- i^tt. -Z9f, ! J.!. -»i Machine Sfee/~y tz spanner. tron iS^;--^ I I ] I .£e .•i 1 nper I I 1^—; n O ^T® Fig. 4—Device for Reboring Air Pump Glands. One-half inch studs are inserted in this centering piece, asshown, and they are then turned down to fit snugly into thepump cylinder. The cutter, whi
. American engineer . p glands is shown inFig. 4. The centering device, which fits in the head of the airpump cylinder, is fastened to the head by the cylinder headstuds which fit in the Ya, in. slotted holes. It is made from anold air pump head which has been planed to a width of 4 in. R Brass t-—3p- i^tt. -Z9f, ! J.!. -»i Machine Sfee/~y tz spanner. tron iS^;--^ I I ] I .£e .•i 1 nper I I 1^—; n O ^T® Fig. 4—Device for Reboring Air Pump Glands. One-half inch studs are inserted in this centering piece, asshown, and they are then turned down to fit snugly into thepump cylinder. The cutter, which is made of tool steel, is fastened to the 1 7/16 in. arbor by a J4 ■ taper pin. Power fordriving the device is furnished by an air motor. PNEUM.\TIC HOLDER-ON. An inexpensive holder-on for use in cramped quarters isshown in Fig. 5. These tools are made in several sizes to suitdifferent classes of work. The steel box is threaded to take thehead and the piston is of the type with leather packing, such as. «_ 4^ >| Fig. 5—Pneumatic Hoider-on Used for Driving Rivets. is ordinarily used in air cylinders. The piston is returned to itsinitial position when the air pressure is released by means of thecoil spring. Compressed air enters underneath the pistonthrough a !4 in. pipe, the connection for which is shown in thecross sectional view of the device. CL.\MP FOR HANDLING SMOKESTACKS. A convenient and safe clamp or sling for handling smokestacks in the erecting sliop is shown in Fig. 6. The two parts ofthe band are made from Y^ in. .x 1^ in- wrought iron bars. The Soff
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
