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nydus/How it WorksPublic

Archibald Williams explains the scientific principles behind common mechanisms and physical phenomena such as steam, electricity, light, and hydraulics. The text focuses on the fundamental operation of everyday devices rather than specific models or detailed technical specifications.

Page 41 of 446
Table of Contents

HOW IT WORKS.

thrust or pull would be entirely absorbed by the bearings.

Fig. 18.
Fig. 18. —Sectional plan of a horizontal engine.

DOUBLE-CYLINDER ENGINES.

Fig. 19.
Fig. 19.
Fig. 20.
Fig. 20.

Locomotive, marine, and all other engines which must be started in any position have at least two cylinders, and as many cranks set at an angle to one another. Fig. 19 demonstrates that when one crank, C 1 , of a double-cylinder engine is at a "dead point," the other, C 2 , has reached a position at which

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