Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 332
842. UNIVERSAL POCKET LEVEL. The under side of the glass is ground andpolished spherically, concave of long radius,and set in a case of steel, nickel-plated.Filled with spirits or glycerized water, ex-cept the bubble space. 843. ADJUSTABLE BEAM CLAMP. For suspending ironpipes from fireproof…
Mechanical movements
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