Patent GB-1160002-A (GB)
Title: Improvements in or relating to a Tape Recorder Apparatus
Inventor: TATTER ERNEST OTTO PAUL
IPC: G11B23/107
Filed: 1967-11-29
Abstract: 1,160,002. Tape cartridges. WARWICK ELECTRODES Inc. 29 Nov., 1967 [15 Dec., 1966], No. 54351/67. Heading G5R. A cartridge for use with a self-threading tape recorder and for receiving a reel of tape comprises an annular side wall having an aperture through which tape from the reel can pass, generally parallel top and bottom walls, at least one of the top and bottom walls being apertured for accommodating the reel drive means of the tape recorder engaged with the reel when within the cartridge, and a groove extending circumferentially of the cartridge in the inner surface of the side wall, the groove communicating with the aperture and being adapted to receive the leading end of a stiff tape leader from the reel within the cartridge and guide the leading end towards the aperture upon rotation of the reel. A cartridge for a 7 in. reel of tape is shown in Figs. 1, 3 and 5. In this embodiment the aperture is in three parts-58a, Fig. 5, having a width less than that of the tape, 58b having a width just greater than that of the tape, and 58c, wider than 58b. The circumferential guide groove in the cartridge is provided by slightlyinclined surfaces 46 and 72, Fig. 3, and by the intervening portion 42b of the side wall of the cartridge. Further inclined surfaces 44, 70, Fig. 3, are provided to deflect the end of the tape leader (see below), into the guide groove. The upper part 36 of the cartridge, Fig. 3, is removable to permit insertion or withdrawal of the tape reel R. The cartridge may stand on lugs 56, Fig. 1, when not in use. Cartridge and recorder combined.-The cartridge 32 is located on the base 12, Fig. 1, of a tape recorder by engagement of notches 54, provided in flanges 52, with posts 76 upstanding from base 12. A feed-out device 78 for the tape is pivoted beneath a pulley 93 and may be moved by means (not detailed), e.g. linkage operable by a manually-actuated knob or push-button, from the dotted-line position to the full-line position shown. The feed-out device 78 includes an arm 96, and a further pulley 94, Figs. 1 and 3, connected to pulley 93 by an endless belt 95. A relatively-stiff leader has been affixed to the outer end of the magnetic tape or reel R, this leader being biased by its resilience outwardly into the guide groove. In the position shown in Figs. 1 and 3, arm 96 extends through slot 58a into the cartridge and belt 95 bears against the tape leader. When pulley 93 is rotated by a pulley 90 and endless belt 92, Fig. 1, belt 95 moves clockwise and urges the leader out through portion 58b of the slot. Continued movement of belt 95 forces the tape leader into a guide channel 16, past two assemblies of pressure roller and capstan 24, 28 and 26, 30, with an intervening transducing station 14, past a movable sensing finger 100 into engagement with a guide finger 102, and into tape-gripping means (not shown) at the hub of a take-up reel 20. Means (not detailed) may be provided in connection with the sensing finger 100, so that when the latter is pivoted to the dotted line position by the now-tautened tape, the feed-out device 78 is swung outwards to the dotted line position of Fig. 1. During the tape-feeding just described, each pressure roller is spaced from its respective capstan. Alternative cartridge.-A cartridge for a 5 inch reel of tape is shown in Figs. 8 and 10. It includes a slot 126 of uniform width, corresponding to the portion 58a of the slot of Fig. 5, for accommodating arm 96 of feed-out device 78; it also includes an extension channel 128. The two parts of the cartridge are removably fastened together by fingers 136 co-operating with openings, not shown, in part 108.