The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 59
1 bore tubes. 2. Telephone; any distance. 3. Telegraph; any distance. 4. By signals—(a) Wire or cord and bell; (b) sight signals, such as the semaphore, lamps, heliograph, flags, and otherdevices; (c) by sound, such as a bell, trumpet, siren, whistle,&c. See Section 105. 5. By pneumatic… … 54 THE ENGINEERS SKETCH-BOOK. Section 20.—COMPENSATING AND BALANCE WEIGHTS. It is of the utmost importance that every revolving or reciprocatingpart of any machine should be as nearly as possible balanced, to obtainsmooth running with the least amount of wear. The following are types of the most…
Mechanical movements
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