Abstract:
An arm rest assembly is usable with a mouse pad or keyboard and provides vertical support for a user's arm to avoid fatigue and injury. The assembly has at least one forearm cradle and a thin profile which allows a mouse or digitizer pad to be placed on an assembly platen or to insert the assembly under a keyboard and support both forearms of the using while striking the keys of the keyboard with both hands. The assembly further includes a detachable slide which is pivotable and, at the same time, allows linear movement of the arm toward and away from the assembly. An interchangeable cradle for the user's forearm has springs to counteract the arm weight and to make the cradle stable in the horizontal position while permitting some tilting.
Abstract:
A forms jam detector for a high-speed line printer having control electronics, a forms guide and a pair of paddlewheel assemblies for fan-folding continuous paper forms fed from the forms guide in a stack within a forms stacker assembly of the printer includes an emitter for projecting a beam of electromagnetic radiation, a receiver coupled to the control electronics and adapted to receive the projected beam, and a member for interposing between the emitter and the receiver. When a jam causes a portion of the paper forms to be forced upwardly from the stack, that portion urges the interposing member upward also to block the projected beam and disable the printer.
Abstract:
Disclosed is a free-flight hammer, impact-printing apparatus including a shifting hammer bank having a plurality of interchangeable hammer modules. Each hammer module includes a plurality of individual linear motion, slidable hammers which are mounted in a side by side relationship in a hammer housing. Each hammer housing also includes a hammer-return spring mounted adjacent a hammer for causing the hammer to return to a set position. The hammers are caused to strike a moving record medium by a plurality of interchangeable actuator modules which each include an actuator assembly. Each actuator assembly comprises a stator housed in a stator housing, a solenoid assembly and an armature. The solenoid assembly is mounted between the stator and the armature. The armature actuates pushrods, which are slidably mounted in the stator housing, in order to cause a hammer to strike. A second actuator assembly can be mounted behind the first actuator assembly relative to the hammer modules so that the first actuator assembly can actuate two hammers through the interaction between the two adjacent actuator modules.
Abstract:
A ribbon tracking system includes guide means and roller means thereon which automatically tilts in the proper direction to correct for errors in tracking of the ribbon. A crowned pulley is floatingly supported and journaled on a curved guide post or shaft wherein the pulley is caused to be axially moved along the post or shaft by reason of corrective forces, in a direction opposite the tracking error for correcting the attitude of the ribbon.
Abstract:
A system for accepting and winding lithographic plate material around a cylinder adapted for rotation about a longitudinal axis includes supply and uptake spools and an alignment tool for use therewith. The cylinder is hollow, having an interior and an axial opening thereto, and includes means within its interior for selectably engaging supply and uptake spools. The engagement means are in fixed alignment with one another and are disposed within the cylinder so as to define an unobstructed winding path extending around the cylinder from the supply spool to the uptake spool. Plate material stored on the supply spool is extended around this path and affixed to the uptake spool. The tool includes means for releasably gripping supply and uptake spools, and alignment components for aligning the gripping means to at least one engagement means within the cylinder when the tool is introduced therein. The tool is removed from the cylinder following release of the spools to the engagement means.
Abstract:
An arm rest assembly is usable with a mouse pad or keyboard and provides vertical support for a user's arm to avoid fatigue and injury. The assembly has at least one forearm cradle and a thin profile which allows a mouse or digitizer pad to be placed on an assembly platen or to insert the assembly under a keyboard and support both forearms of the using while striking the keys of the keyboard with both hands. The assembly further includes a detachable slide which is pivotable and, at the same time, allows linear movement of the arm toward and away from the assembly. An interchangeable cradle for the user's forearm has springs to counteract the arm weight and to make the cradle stable in the horizontal position while permitting some tilting.
Abstract:
A plurality of clamping members are disposed along a recording line against the record media, and a cable, secured at the ends thereof, is trained in a path engaged with the clamping members and with movable bearing members spaced between the clamping members. Actuation of a solenoid causes a rocker arm to pivot and through a cable tension control member carried thereby cause tightening of the cables on the clamping members and on the bearing elements thereby changing the force on the clamping members and against the record media for holding the media in precise position while recording thereon.