Abstract: An optical inspection system includes a thin optical probe having spaced parallel viewing surfaces on opposite sides and image reflecting elements within for transmitting images from the viewing surfaces to viewing optics including optical paths aligned with the edge of the probe to receive and magnify images from the viewing surfaces. The apparatus permits insertion of the probe for inspection and measurement of areas not readily accessible by conventional means. The probe is preferably used as part of a system and method for optical alignment verification of double sided floppy disk transducer head assemblies, wherein the probe is inserted between the heads, with their read/write gaps adjacent the viewing surfaces. Measurement apparatus is provided to permit measurement of the relative positions of the read/write gaps for the two heads.

Abstract: A thin film magnetic transducer having a pair of planar core pieces with front and rear legs and a coil formed around the rear legs. The coil is preferably formed by deposition where turns of the coil have a bottom pieces, riser portions and top pieces which are interconnected to form the coil. In the preferred embodiment, the transducer track width is terminated by means of termination portions which extend into the transducer gap. These portions are preferably defined to create a more uniform flux density at the edges of the track width. In addition, the flux density across the track width is preferably made more uniform by including a curve portion along the rear edge of the front legs. This curve portion may also follow an exponential formula to achieve this uniform density.

Abstract: An electromagnetic transducer assembly includes a carriage 30 carrying a first transducer 33 projecting therefrom and a load arm 35 carrying a second transducer 32 arranged for gimballing movement about a pair of mutually perpendicular axes, the arm being connected to the carriage by a leaf hinge assembly 43 for movement to load or unload transducer 32 to the disk recording medium 20. The transducers have planar disk engaging faces surrounded by edge bevels which merge smoothly with each other at conical corner surfaces 144, 157, and which are blended smoothly into the faces. The second transducer 32 is mounted in the arm on a flexure member 65, which also mounts a connector block 75 to which a flex strip 81 is connected, and which includes eyelet pins for facilitating the wiring of the transducer coils. The arm has an aperture 60 near the end which includes transducer 32 which permits access thereto during assembly.

Abstract: An electromagnetic transducer assembly includes a carriage 30 carrying a first transducer 33 projecting therefrom and a load arm 35 carrying a second transducer 32 arranged for gimballing movement about a pair of mutually perpendicular axes, the arm being connected to the carriage by a leaf hinge assembly 43 for movement to load or unload transducer 32 to the disk recording medium 20. The transducers have planar disk engaging faces surrounded by edge bevels which merge smoothly with each other at conical corner surfaces 144, 157, and which are blended smoothly into the faces. The second transducer 32 is mounted in the arm on a flexure member 65, which also mounts a connector block 75 to which a flex strip 81 is connected, and which includes eyelet pins for facilitating the wiring of the transducer coils. The arm has an aperture 60 near the end which includes transducer 32 which permits access thereto during assembly.

Abstract: An electromagnetic transducer assembly includes a carriage 30 carrying a first transducer 33 projecting therefrom and a load arm 35 carrying a second transducer 32 arranged for gimballing movement about a pair of mutually perpendicular axes, the arm being connected to the carriage by a leaf hinge assembly 43 for movement to load or unload transducer 32 to the disk recording medium 20. The transducers have planar disk engaging faces surrounded by edge bevels which merge smoothly with each other at conical corner surfaces 144, 157, and which are blended smoothly into the faces. The second transducer 32 is mounted in the arm on a flexure member 65, which also mounts a connector block 75 to which a flex strip 81 is connected, and which includes eyelet pins for facilitating the wiring of the transducer coils. The arm has an aperture 60 near the end which includes transducer 32 which permits access thereto during assembly.

Abstract: An electromagnetic transducer assembly includes a carriage 30 carrying a first transducer 33 projecting therefrom and a load arm 35 carrying a second transducer 32 arranged for gimballing movement about a pair of mutually perpendicular axes, the arm being connected to the carriage by a leaf hinge assembly 43 for movement to load or unload transducer 32 to the disk recording medium 20. The transducers have planar disk engaging faces surrounded by edge bevels which merge smoothly with each other at conical corner surfaces 144, 157, and which are blended smoothly into the faces. The second transducer 32 is mounted in the arm on a flexure member 65, which also mounts a connector block 75 to which a flex strip 81 is connected, and which includes eyelet pins for facilitating the wiring of the transducer coils. The arm has an aperture 60 near the end which includes transducer 32 which permits access thereto during assembly.

Abstract: A spring retaining clip resiliently urges the back bar core piece of a magnetic head assembly into contact with the back ends of two other core pieces whose front ends define the head gap. Use of the clip permits installation of the head coil on one of the core pieces and installation of the back bar after the core pieces have been secured, ground and lapped in the head housing, thus simplifying the manufacturing process. In a preferred embodiment the retainer clip has a first surface member for engaging or being glued to the side of the back bar, and a pair of resilient tabs for engaging the back ends of the pole pieces when the back bar is installed with the clip holding the back bar and the pole pieces tightly together. A grounding wire for the core can be soldered to the retaining clip.

Abstract: A device, and method for assembling same, is disclosed for the itemized dispensing of tabs having an adhesive coating on one side thereof, which tabs are polygonally shaped and obliquely, releasably mounted on a rolled strip of backing material. The device comprises a roll of such tabs disposed within a box having one side thereof with a triangularly shaped opening in its lower end. The triangular opening is defined by the box edge adjacent the opening and the lower side edge, which intersects the box edge at the angle of obliquity at which the tabs are disposed on the backing strip. As the backing strip is drawn through the opening, the leading edge of a tab will be exposed free and clear of the box edge, and the entire tab will be exposed free and clear of the lower side edge, whereby the tab may be peeled from the backing strip. As the leading edge of a tab is exposed free and clear of the lower box edge, one, and only one, entire tab is exposed exterior of the box.