American School of Correspondence · Chicago, American school of correspondence · leaf 103
e pinion, D; both pinions are secured to the rackshaft, G. The gear, R, also on the rack, shaft, is connected withthe pinion, O, which is on the hub of the break pulley, N, bjthe gears, S and P. These gears turn loose on the shaft, L, andare held in position by the collars, F and H. The break… … SIDE ELEVATIOM FRONT ELEVATION Fig. 43. Friction Let-off. fcact with it by the weight, M. The face of the break lever whichbears against the pulley is lined with leather. As the lap increases in diameter, it draws up on the rackswhich are kept from rising by the friction of the break lever…
Textile industry and fabrics
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