A record (12) comprising a convex protrusion (12a) at its center, one or more protrusions (12b) extending perpendicularly from the plane of the record at its circumferential edge, and a recording area between the center and the circumferential edge. The protrusions engage similar indentations (3b, 3e) formed in a turntable to facilitate centering and holding the record for playing and to prevent rotational slippage.

A system (10) for compressing and decompressing records includes a decompressed file (12) and a compressed file (14). A first record is stored in a first buffer (18) and a second record is stored in a second buffer (20). A vertical compression technique compares the first record and the second record, on a field-by-field basis, and replaces the field of the second record with a vertical repeat indicator if the field of the second record matches the corresponding field of the first record. A hori...

A record pad is provided having upper and lower margins and side margins for a plurality of sheet sets. Each set includes a paper top sheet and at least one underlying record bottom sheet with a transfer mechanism (such as carbonless coatings) for transferring indicia imaged on the top sheet to an underlying record sheet. A securing edge margin of each sheet set is provided at the first side margin, with a pattern (such as a continuous strip) of repositional adhesive provided adjacent the securi...

A novel pressure sensitive record material suitable for use for high temperature reprographic equipment is disclosed comprising a sheet support carrying isolated droplets of an oil solution of chromogenic material, said isolated droplets being confined within respective pressure rupturable barriers, and, on the opposite surface of the same sheet or on a different sheet support, a coating of a acidic developer material effective to develop the color of the chromogenic material in solution on cont...

A record pad is provided having a paper top sheet with top and bottom faces and an underlying record bottom sheet with a transfer medium between them. The top sheet has an upper margin and a pattern (such as a substantially continuous strip) of repositional adhesive is provided on each top sheet bottom face adjacent the upper margin and substantially parallel to the upper margin. This provides a record pad construction which is more user friendly particularly for left handed writers, and makes i...

A record player suitable for a so-called scratch performance operation by which a phonograph record is directly rotated in forward and reverse direction to output new artificial sound by fingering of an operator is provided. The positional relationship between the record groove on the turntable and the supporting point P of the arm shaft is defined so as to suppress inward and outward component forces applied to the needlepoint of the cartridge as possible. Three points including a start point a...

A record pad of paper sheets includes a number of stacked sets of sheets. Each set comprises a quadrate top sheet having top and bottom faces and for receiving indicia on its top face and having a first edge; a quadrate record sheet having top and bottom faces and for receiving transferred indicia from the top sheet on its top face, and having a first edge extending generally parallel to and outwardly from the first edge of the top sheet to define a margin; a transfer mechanism (such CF and CB c...

A color developer material comprising a homogeneous mixture of a color developer containing a certain weight percent phenolic group, divalent zinc, and an aromatic carboxylate component possessing certain properties. These mixtures are particularly useful as color developer materials for basic chromogenic materials in either pressure-sensitive or heat-sensitive record materials.

In accordance with an illustrative embodiment of the present invention, a medication information recording system includes a chart having a series of vertically spaced, partially overlapping prescription slips detachably secured to the left hand margin thereof. The chart has alternating rows of prescription information blocks and related information blocks. Each slip has a row of prescription information blocks superimposed over a companion row on the chart, and a row of pre-printed heading bloc...

A long chain fatty acid salt, for example calcium, sodium or aluminium stearate, is included in small amounts (e.g. 2 to 10% by weight) in an otherwise conventional color developer composition of which the major active ingredient is an adsorbent inorganic material. Record material coated with such a composition exhibits better sheet-fed runnability characteristics in wet offset printing operations than if the fatty acid salt is not present.