PLAN No. 924. BENCH HANDS
Kind of Work Done
In the construction of machinery, including the repair of worn and broken parts, there are many operations which can not conveniently be done on machines. This work is done by hand at a bench, fitted with a vise for holding the work. The work done consists of chipping and filling to remove metal, the laying out of centers, circular arcs, lines and limits for the operator, and a variety of operations which require the use of hand tools.
Examples of this work are:
Fitting piston rings to grooves and to standard test gauges.
Filing machined parts to provide smooth surfaces, and to remove burrs.
Laying out and marking parts for drilling and other operations. Much of this work is necessary in making special jigs and fixtures to increase quantity production.