Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 166
.^u.ET 573- WATER PURIFYING FILTER,V..ll ^- ^- Filter Mfg. Co. pattern. A diaphragmnear the bottom holds the gravel and sandfiltering material. There is a shaft through themiddle of the tank, with arms for stirring thesand while cleaning by a back-waterflow. Thewater is fed at the top with a small… … REVERSIBLE FILTER.—The positionof the filter in the cut is for filter-ing downward. By turning it overon the trunnions it can be cleanedfrom above downward, whichclears it of all sediment. The in-flow is from above and the wasteis through the trunnions to thesewer while cleaning.
Mechanical movements
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