Abstract: A film developing system for microimage recording apparatus providing computer output on microfilm utilizing an elongated film strip movable along a film path and employing heat for developing latent image areas formed on the film at an exposure station includes a support for positioning said film strip along the film path at spaced apart locations on opposite sides of a previously exposed latent image area in position ready for developing. A tensioning system is provided for exerting tension on the film strip between said support locations and a developer shoe having an outwardly convex, heated, film contacting surface is adapted to contact the facing surface of the film strip between the supports for developing the latent image area thereon.

Abstract: An apparatus operable in cooperation with the logic circuitry of an automatic sewing machine for positioning a movable workholder in a predetermined position relative the sewing machine needle. The apparatus includes a workholder position sensor assembly and workholder direction sensor assembly operable in timed relation relative to one another and in positional synchronization with the movement of the workholder. Electrical circuitry is adapted to read the signals of both sensor assemblies and position the workholder at a predetermined location.

Abstract: Mechanism on a sewing machine for engaging and withdrawing a severed sewing machine needle thread end from a workpiece at the completion of a sewing operation. The thread wiper mechanism includes a thread engaging element which is reciprocally movable along and about an axis extending generally parallel with the needle's path of travel with the element sweeping beneath the needle, across the needle's path and returning to its initial position at the completion of the sewing operation.

Abstract: The disclosed invention describes an automatic sewing machine having a linear compensating system for moving a workholder relative to a fixed point. The driving power for the workholder is provided by a pair of stepping motors, each of whose mechanical output is operably connected by the linear compensating system to the workholder. A mechanical feed back means is associated with the system so that the workholder may be moved in a coordinate system which has been modified so that the movement of the workholder relative to the needle closely approximates a rectangular coordinate system.