Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 48
aterialsuch as asbestos, to reduce the loss of heat by radiation. The cylinder shown in Fig. 21 represents a usual type of con-struction for automatic high speed engines having flat valves.As compared with the cylinder shown in Fig. 20, this one has alarger diameter in proportion to its length, has… … Fig. 21. recessed to allow the ports to end behind the piston instead ofending flush with the cylinder walls. The heads are set into thecylinders and bolted on. On account of the different methodsof fastening the piston to the piston rod, the head end head isnot recessed but forms a plane surface…
Steam-engines
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