Society of Glass Technology · [Sheffield] · leaf 597
nted on an upward extension, a2, ofa laterally projecting part, a1, of the casing in which is mounteda driving-bevel wheel, h, engaging the wheel, d. Mounted on thespindle, A1, of the wheel, h, and caused to rotate therewith by aspring tongue, I, is an interchangeable sleeve, k, in which is formeda… … Fig. 143. MACHINERY FOR THE WORKING OF GLASS. 167 the pivot pins, q1, of which move in slots, a3, in the extension, a2,and are carried by a spherical member, q, sliding on the lever.The pins, q1, also engage in helical grooves, r1, formed in a sleeve, r,surrounding the extension, a2, the position…
Glass
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