Abstract: Magnetic powder having a large coercivity, Hc, is consolidated with a non-magnetic binder to form a magnetic implement having desired dimension and shape. The magnetic implement exhibits a linear B-H loop and low magnetic loss. It is capable of operating under a wide magnetic field range, and finds use current and pulse transformers, inductors carrying large electrical current, stable bandpass filters, and the like.

Abstract: Magnetic powder having a large coercivity, Hc, is consolidated with a non-magnetic binder to form a magnetic implement having desired dimension and shape. The magnetic implement exhibits a linear B-H loop and low magnetic loss. It is capable of operating under a wide magnetic field range, and finds use current and pulse transformers, inductors carrying large electrical current, stable bandpass filters, and the like.

Abstract: A highly useful photographic film base containing a miscible blend of is polyester containing at least 30 weight percent cyclohexylene dimethanol, CHDM/EG-PE, and a polycarbonate containing bisphenols, BP-PC, in specified proportions. Photographic elements prepared with this film base have a lesser tendency to take core-set and post process curl than do elements prepared with polyester containing cyclohexylene dimethanol, CHDM/EG-PE, film base.

Abstract: A highly useful photographic film base comprises a miscible blend of is syndiotactic polystyrene, SPS, and a polyxylylidene ether, PXE, in specified proportions. Photographic elements prepared with this film base have a lesser tendency to take core-set and post process curl than do elements prepared with syndiotactic polystyrene, SPS, film base.

Abstract: A recorder for a cartridge-enclosed disk includes a loading and unloading mechanism which utilizes a cam and cam-follower to enable a cartridge-receiver unit to automatically open the recorder's pivoted door when the receiver unit itself pivots from an operative to a loading/unloading position. The cam and cam-follower also enable the door to pivot the receiver unit to the operative position when the door is manually closed following insertion of the disk cartridge. A manually-releasable latch holds the receiver unit in its operative position against the action of a pivot-inducing bias spring. Until activated to allow the receiver unit to force open the door, the same latch also holds the door in its closed condition.

Abstract: A magnetic recording head structure having independent read/write heads located on opposite sides of a flexible recording disk to enable the reading and writing of information on both the upper and lower surfaces of the disk. Each read/write head is supported by corresponding cantilever arms connected to a common head positioning carriage. Each read/write head employs a pressure pad positioned on the opposite side of the flexible recording disk to urge the disk into recording contact with the read/write head associated with the pressure pad. The read/write heads are "D" shaped with the bar portions of the "D" shaped heads located adjacent to each other to insure that the heads do not overlap for any portion of the recording disk. The read/write heads include appropriate coil and magnetic core structures to enable the heads to write information onto the disk, read back previously written information from the disk, and erase information that exists on the disk.