Combined bearer wiper assembly and finger guard for printing apparatus
AssigneeAir Stamping, Inc.
InventorAlbert W. Robertson
Life of this patent
Estimating the term…
Abstract
A wiper assembly (1) for a printing apparatus comprises a finger bar (19) extending longitudinally of printing rolls (5, 7) in a spaced relation thereto at the point of contact between the rolls. Pneumatic rams (33, 35) are attached to respective ends of the finger bar adjacent the bearer members (9, 11, 13, 15) on the rolls. Wiper pads (53, 55) are attached to the ends of each ram and engage the roll bearers. A compressed air supply (81) activates the rams to move the wiper pads into and out of contact with the bearers.
Claims11
In a printing apparatus having upper and lower printing rolls for which rotatable bearer members are provided at the respective ends thereof, a bearer wiper assembly comprising:
- (a) guard means extending longitudinally of the rolls in a spaced relation thereto at the point of contact between the rolls to prevent an operator's fingers, and other articles from being drawn therebetween;
- (b) a first ram means attached to one end of the guard means and a second ram means attached to the opposite end thereof, each ram means being located adjacent an associated bearer member on the rolls and each ram means including a piston means and a cylinder means, one of said means being connected to the guard means and the other of said means being movable relative to said guard means;
- (c) bearer-engageable wiper means attached to said movable means;
- and
- (d) actuation means for the ram means to move the wiper means into and out of engagement with the bearers.
Dependencies are inferred from the claim text.