A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 256
rifice is still opened and closed by the fingers of the blower . Instead of the mouth of each bag beirig drawn up in the hand , it is stretched out in the form of a long slit ; to the lips of which two Strips of wood are sewed . The inner side of each Strip is made straight and smooth , so that… … valve becomes further developed . No . - lüii . Primitive Bellows of Asia . To similar instruments , Mr . Emerson refers in his ‘ Letters from the Egean . ’ The crew of a Hy - driot vessel having taken her ashore at Paros to repair the iron clasp of her rudder , an opportunity occurred of examining…
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