Cloth supply system for blanket cylinder for use in printing presses
AssigneeBaldwin Technology Corporation
InventorsCharles R. Gasparrini, Carl Arnolds
Life of this patent
Estimating the term…
Abstract
A cloth roll and mechanism for supporting and controlling feeding of the cloth from the cloth roll for cleaning a blanket cylinder of a lithographic press.
Claims13
A cleaning cloth fabric supply system for use in a blanket cylinder cleaner mechanism of the type having a blanket cylinder, a cloth take-up roll, a mechanism for intermittently feeding cloth on the take-up roll from a cloth supply roll, and a mechanism for intermittently causing engagement of the cleaning cloth with the blanket cylinder comprising:
- (a) a frame member,
- (b) cloth supply means having a expendable inner core member and adapted to have cleaning cloth of a predetermined width and length wound thereon;
- (c) said inner core having a sufficient length to extend distances beyond each side of the width of the cleaning cloth;
- (d) support means on said frame adapted to support each end of the inner core member in substantially parallel relationship to the blanket cylinder and the take-up roll;
- (e) said support means on one side of said frame including a plurality of abutments extending from one side of said frame and adapted to support said inner core member to permit rotational movement of the core member, at least one of said abutments being movable to permit access to and from said frame member;
- (f) control means on the other side of said frame for controlling rotation of said inner core member;
- said control means including a brake shoe means mounted for radial movement with respect to said inner core for limiting rotational movement of said inner core, and a spring means for exerting rotational tension upon said inner core during the intermittent feeding step, means for limiting the amount of spring load, said spring means causing a controlled amount of rewinding of cloth on the cloth supply roll so as to prevent bunching of the cleaning cloth, said spring means being functionally attached to said brake shoe means.
A cleaning cloth supply system as defined in clam 1 wherein the inner core has a thickness between 1/8 and 3/8 of an inch.
A cleaning cloth fabric supply system for use in a blanket cylinder cleaner mechanism of the type having a blanket cylinder, a cloth take-up roll, a mechanism for intermittently feeding cloth on the take-up roll from a cloth supply roll, and a mechanism for intermittently causing engagement of the cleaning cloth with the blanket cylinder comprising:
- (a) a frame member;
- (b) cloth supply means having an expendable inner core member and adapted to have cleaning cloth of a predetermined width and length wound thereon;
- (c) said inner core having a sufficient length to extend distances beyond each side of the width of the cleaning cloth;
- (d) support means on said frame adapted to support each end of the inner core member in substantially parallel relationship to the blanket cylinder and the take-up roll;
- (e) said support means on one side of said frame including a plurality of abutments extending from one side of said frame and adapted to support said inner core member to permit rotational movement of the core member, at least one of said abutments being movable to permit access to and from said frame member;
- (f) control means on the other side of said frame for controlling rotation of said inner core member;
- said control means including a brake shoe means for limiting rotational movement of said inner core, and a spring means for exerting rotational tension upon said inner core during the intermittent feeding step, means for limiting the amount of spring load, said spring means causing a controlled amount of rewinding of cloth on the cloth supply roll so as to prevent bunching of the cleaning cloth, said spring means being functionally attached to said brake shoe means;
- and further having
- (g) a hollow enlarged socket member adapted to receive an end of said inner core, said socket member having a reduced diameter shaft extension.
Dependencies are inferred from the claim text.