Back to results
US 4,044,670 AGranted
Stencil duplicator
AssigneeGestetner Limited
InventorMichael Maynard
Life of this patent
Estimating the term…
Abstract
A device for rolling up onto a core a stencil or ink screen being removed from a duplicator, in which means alongside the or a duplicator cylinder for supporting a core and for driving it at a peripheral speed in excess of the peripheral speed of the duplicator so that a stencil or ink screen from the duplicator may be unrolled from the cylinder and onto the core with tension in the stencil or ink screen maintained by virtue of slipping drive to the core.
Claims6
A stencil duplicator including at least one duplicator cylinder;
- means carried by said at least one duplicator cylinder for holding a stencil for rotation with said cylinder;
- a core for receiving one end of said stencil during removal of the stencil from said duplicator;
- means operatively connected to said at least one duplicator cylinder for driving said cylinder for rotation in use of the duplicator;
- torque limiting core holding means constructed to removably support said core for rotation adjacent and parallel to said at least one cylinder;
- core driving means optionally engageable with said duplicator for transmitting limited torque drive from said cylinder drive means to said core holding means, said core driving means being effective to rotate said core with a surface speed higher than that of said at least one duplicator cylinder but with a limiting maximum torque transmitted to said core;
- and means for optionally engaging drive from said duplicator cylinder to said core driving means.
3 more elements
Dependencies are inferred from the claim text.