Improvements relating to Fences or Guards for use with Tin Rollers or Drums such as those employed in Ring Spinning or Ring Doubling Machines, or with Pulleys similarly used.

摘要

111,938. Platt Bros. & Co., and Bancroft, G. Jan. 13, 1917. Guards, controlling.-A guard for use with the tin rollers of ring spinning or ring doubling machines and similar pulleys is coupled to the starting-handle of the machine in such a way that it can only be moved from its protecting position when the machine has been stopped. The guard d has a projecting web or fin e which can be moved towards one or other of the tin rollers a. when it is required to place a band in position, but this movement is prevented when the machine is working by an arm u engaging in the angle of a wedge-shaped fork o on a rotary shaft m connected by rods q, r to the starting-handle t. The fork is curved concentrically to the axis of the shaft m. When the machine has been stopped, the arm u lies in the wide part of the fork, enabling the guard d to be rotated. The fork o may be replaced by a pair of adjustable inclined rods or fingers.