Hawkins' indicator catechism : a practical treatise for the use of erecting and operating engineers, superintendants, students of steam engineering, etc. ... by Hawkins N. (Nehemiah) 1833-

Author:Hawkins, N. (Nehemiah), 1833-
Language: eng
Format: epub, pdf
Tags: Indicators for steam-engines
Publisher: New York : T. Audel
Published: 1898-03-25T05:00:00+00:00

HAWKINS' INDICATOR CATECHISM.

85

EXAMPLES OF DIAGRAMS.

The operator is protected from the wind and possible missiles by a sheet-iron box, surrounding the front of the boiler and both cylinders.

The advantage of indicating railroad locomotives is illustrated in cards Figs. 66, 67, 68 and 69. Fig. 66 was taken

Fig. 66.

Fig. 67.

of a locomotive after the valves were set by the engineer, judging by the sound of the exhaust.

The speed at which the engine was running when the card was taken was 208 revolutions per minute, with the lever at first notch.

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