Sycor, Inc.

Irwin International, Inc.

Otto R Butsch

Samuel N Irwin

Juan F Velazquez

Francis Lum

Samuel A Morgan

Integrated disc and tape recorder drive unit

Combined disc and tape drive

An adjustable head positioner for a disc recorder of the type including a translatable carriage for moving a magnetic head relative to a recording disc is disclosed. The adjustable head positioner includes an elongated mounting arm or extender secured to the carriage and defining adjacent one end a transverse guide. A head support member includes a glide slidably disposed within the mounting arm guide and a magnetic head of the data recorder is carried by the head support member. A manual adjustment member is carried by the mounting arm and operably engages the head support member for adjusting the position of the head support member relative to the cross arm along the guide.

Head positioner for disc recorders

A drive spindle assembly for a disc recorder, and particularly one using a rigid disc, having a direct-coupled spindle shaft arrangement which includes a disc-support platform mounted concentrically at one end of the spindle shaft and a DC motor attached to the other end of the spindle shaft, which spaced bearings supporting the shaft medially between the motor and the support platform. Preferably, the motor is of the flat, compact printed circuit-rotor type known as a 'pancake' motor, and the disc-support platform preferably incorporates air-impelling vanes on one side and bleed orifices extending through it, so that air is drawn along the spindle assembly to cool it, and then impelled outwardly over both sides of the recording disc to help aerodynamically fly the recording heads on a thin film of air over the surface of the disc.

Drive spindle assembly for disc file

An improved lead screw drive for a disc recorder of the type including a rigid frame having a pair of spaced, parallel members. The parallel members define coaxially aligned bores. A stepper motor having an outwardly-projecting integral lead screw output shaft is supported on the frame with the lead screw extending through one of the bores to a point closely adjacent the other bore. A rotatable support is disposed in the other bore and contacts the free end of the lead screw opposite the motor. The support includes a holder having a mounting shaft extending into the bore. A conical member is rotatedly supported by the holder and contacts a seat at the free end of the lead screw. The conical member is biased against the free end of the lead screw to thereby rotatably support same.

Lead screw support for a disc recorder

A disc file structure includes a rigid support casting as a structural foundation which rotatably mounts a disc drive spindle assembly, including a shaft, a motor connected to the shaft at one end and an air pump impeller connected to the shaft at the other end. Housing enclosure portions attach to the support casting so that the resulting structure forms an integral sealed air chamber which defines a single air flow path for both cooling the assembly and for aerodynamically supporting the read/white heads.

Disc file assembly

A drive follower assembly for a disc recorder of the type including a frame supporting a lead screw and a guide rod positioned in vertically spaced, parallel relation to the load screw is disclosed. The drive follower includes a one-piece carriage defining a longitudinal bore. A first, hollow, cylindrical, internally threaded follower is disposed within the bore and held against rotation and longitudinal movement relative to the body. A second, internally threaded adjustment member is loosely held within the bore and engaged by the lead screw. A coil spring is positioned between the follower member and the adjustment member to provide a snug fit on the lead screw and prevent decoupling. Provision is made for holding the adjustment member against rotation relative to the body yet permitting relative rotation for adjusting the initial preload of the spring.

Disc recorder drive follower assembly

Closure and bezel for disk recorders and the like

Disc-type data file

A data recorder/reproducer device for flexible magnetic disc media, having a door-like structure mounted on a supportive frame. The door structure receives a recording disc and is adapted to carry a recording head at one or both sides of the disc. The heads are articulated for selective control of movement toward or away from the disc, into or out of transducing relation and also for translational movement across the face of the disc, generally radially thereof. The device includes novel interlocking actuator means which prevent opening of the door or doors except when the heads, positioned by a translational drive means, are in a predetermined 'home' or start position at the edge of the disc, thereby preventing the inadvertent erasure or other loss or destruction of the recorded information.

Growing community of inventors

Ann Arbor, MI, United States of America

Otto R Butsch