Abstract: A range-limiter device for a weight machine. An input assembly which rotates in response to a force exerted by the user is fixed to a shaft supported on the frame of the machine. A cam is also fixed to the shaft. Two parallel arms are supported on the shaft. Mounted on substantially the entire perimeter of the cam is a cam track. A cam follower surrounds the cam track. One end of a cable is secured to the cam follower. The cable wraps around the perimeter of the cam in the cam track grooves and leaves the cam track tangentially and travels to a pulley system terminating at a weight stack of the machine. Two features of the cam follower are captured in slots on the interior surfaces of the parallel arms. To adjust the start position for the range of motion of the input assembly, the user disengages a pull pin from the hole in the cam thereby disconnecting the parallel arms from the cam. This results in disconnecting the cable from the cam.

Abstract: Disclosed is a sheet feeder for supplying single sheets of paper to a printer's paper feeding mechanism. The sheet feeder is pivotably mounted so that the paper supply is maintained in contact with a fixed position feed roller. The feed roller is actuated when a sheet of paper is to be fed into the printing mechanism. The sheet feeder's pivot point is chosen to provide constant feed pressure to the paper supply regardless of the size of the remaining paper supply.

Abstract: An infinitely variable tilting support mechanism is disclosed for use with a cathode ray tube display unit which enables a particular operator to position the display unit for minimum reflective glare on the face thereof.The display unit is pivotally tilted about its center of gravity in quasi-static equilibrium by a particular circular configuration of one or more rocker elements.