Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 61
rcumferences of the two parts ofthe roller. The action of this machine is therefore slow, butthe mechanical advantages are proportionately great. The fusee windlass is shown in Fig. 79. This is an earlyinvention designed to overcome in a mechanical method thegreater weight which the rope hung at… … Historical Introductioji. 63 it coils round the larger part. (See Fig. 79), which is howeverinacctirately dra\\Ti—as the bucket is at the top of the well; itshould have been represented as suspended from the large endof the fusee. The value of a device like this will be appreciated whenthe great…
Hydraulic machinery · Pumping machinery
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