Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 36
massivecolumns. Adjustment for rivet pitches made by swivelling spindles and adjust-ing them along the brackets. Spindles i^ diameter, stroke 8, length of bed20 ft., complete with roller stands for supporting boiler shell. Electric motor oneach bracket for operating spindles. Separate motor for… … TEN-SPINDI.E BOILER-SHELL DRILLING MACHINE.For longitudinal seams in cylindrical boilers from 3 ft.to 7 ft. in diameter.Spindles in two groups of 5 each, carried by brackets on heavy columns, adjust-able along the bed. Diameter of spindles i^. maximum distance between drillcentres 12, minimum 6,…
Machine-tools · Machinery
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