The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose

by Thomas Walter Barber

[1737]. Measuring wheel.

[1738]. Double slide measurer.

[1739]. Automatic tipping scale. When full, to equal the weight, it falls and tips by striking a fixed stop; the scale then turns over and returns to its position, and is refilled.

[1740]. An ordinary piston and cylinder are often employed to measure liquids, and fitted with a reversing valve on the same principle as [Nos. 1026], [1027], and [1741]. See also [note] to [Sec. 93].

Most of the rotary devices (see [Section 75]) have been employed as meters for liquids and gases. See [No. 1692].

Dry gas meters usually employ an expanding bellows, or light piston, with a self-reversing valve, similar to [Nos. 1299] and [1026]. See also [Section 44].

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Section 93.—WATER-PRESSURE ENGINES.

See also [Section 56].

Hydraulic ram. See [No. 1025].