Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals of mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

Abstract: An erasure method for an image recorded on a reversible heat-sensitive recording medium comprising the step of contacting a thermal head to apply an amount of heat as an electric wave pulse to the recorded image in a heat-sensitive recording layer, characterized in that the amount of heat as pulse waves satisfies the following formula (1)E.sub.(n-1)th >E.sub.(n)th (1)whereinE.sub.(n)th indicates an amount of heat applied to one dot of the thermal head the nth time,E.sub.(n-1)th indicates an amount of heat applied to one dot of the thermal head the (n-1)th time, and.sub.n indicates a number of times the amount of heat is applied, and is an integer greater than 2.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining means is detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which drive means for driving the machining means are provided in the cassette comprising a plurality of machining units, and the driving force of the driving means of a particular machining unit is made larger than the driving force of the driving means of other machining units.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals at mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining tools detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes. The machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which driving devices for driving the machining tools are provided in the cassette comprising a plurality of machining units, and the driving force of the driving devices of a particular machining unit is made larger than the driving force of the driving device of other machining units.

Abstract: Cassette changing apparatus for index-feed machining systems having such a construction that a plurality of machining units, in which cassettes having machining means are provided, are disposed at predetermined intervals in the workpiece feeding direction in accordance with a plurality of machining processes; the cassette changing apparatus comprising a cassette transfer unit adapted to be movable in such a direction as to intersect with the workpiece feeding direction on a plane, and a cassette holder adapted to be approachable to and detachable from an index-feed machining system; a cassette being extracted from the index-feed machining system and housed in the cassette holder by means of the cassette transfer unit, and then another cassette holder housing a new cassette being moved to a loading position and mounted on the machining unit by means of the cassette transfer unit.

Abstract: The reversible heat-sensitive recording medium having a heat-sensitive recording layer capable of reversibly changing the transparency thereof with organic low molecular substances dispersed in an organic macromolecular resin provided on a support is characterized by using at least one long chain alkyl-containing compound having a melting point of 50.degree.-100.degree. C. and at least one saturated aliphatic bisamide having a melting point of not less than 110.degree. C. as the organic low molecular substance in a ratio of 98:2 to 80:20. A plasticizer may be contained in the organic macromolecular resin in a ratio of 1 to 10% by weight, based on the total solid of the heat-sensitive recording layer.

Abstract: A transfer recording medium is disclosed, comprising a light transmitting support having provided thereon a heat transfer solid ink layer via an interlayer having a photolyzable compound. The recording medium provides a clear and high-quality color image on an image-receiving sheet at high speed and low cost irrespective of surface smoothness of the image-receiving sheet.