The cassette of the invention comprises a plastic tray having at one end an array of projecting curved fingers and an auxiliary member having an array of curved fingers, with the auxiliary member adapted to seat on the base so that the curved fingers of the base form a smooth curve with the curved fingers of the auxiliary member. Before the auxiliary member is seated on the base, a plurality of separator sheets to be carried thereby are secured to the base by means of holes which are threaded on the first curved fingers. The auxiliary member is then seated in place, and ultrasonic vibrations are applied to heat and fuse the separate fingers to form unitary continuous curved rings which hold the sheets in place.
A method and apparatus for fastening a holding member (6) for the springs (4) that apply pressure to the counter-rolls (3) for driving sheets of paper on the frame (2) of a machine, such as a facsimile machine, is disclosed. The method comprises the steps of: 1) pressing the holding members against the springs so as to compress the springs against the rollers; 2) positioning the holding members (8, 11, 12) relative to locator tabs and ribs of the frame; 3) causing and maintaining the aforementioned positive placement by the force of compression of the aforementioned elastic springs.
A retainer including a pin adapted for attachment to a mounting member for supporting a stack of sheets having one or more openings; the pin having a shank portion for insertion into the one opening, an outer end portion defining a pair of parallel bores with transversely spaced apart axes, and an inner end portion attachable to the support member; and a spring clamp having a pair of leg portions with outer end portions joined by a yoke portion and inner ends each joined to a journal portion received by a different one of the bores and retainer.
