Patent GB-726241-A (GB)
Title: Improvements in or relating to visible card index systems
IPC: B42F17/00
Filed: 1953-03-23
Abstract: 726,241. Visible card indexes. REMINGTON RAND, Ltd. (Remington Rand, Inc.) March 23, 1953, No. 7952/53. Class 146(1). For use in a visible card index system in which cards have fixing tongues cut out and adapted to be distorted rearwardly for engagement behind laterally directed marginal flange portions of runways, card mounting units comprise a runway, or a panel carrying one or more runways, and means for locating two units in closely disposed end to end aligned relation, the marginal flange portions of the runways being provided with means to deflect the back of the card and its tongues away from the faces of the flanges at points near each end, whereby the normal edge embracing clearance between the back of a card and its tongues is increased as a card is slidden off the end of a runway to facilitate the transfer from one runway to an aligned runway. As shown in Figs. 1-8 the cards 21 have flexible tongues 25, 26 engaging under flanges 27, 28 of runways 22, 23 so that they are in overlapping relation, the runways 22, 23 being mounted on panels 24 to form a card mounting unit. For wide cards 21, elevator strips 29 are provided at each side of the panel 24 and top and bottom card strips 31, 31<SP>1</SP> are provided for each complete block of cards 21. Each card stop comprises a U-shaped cross. member 34 with a central stem portion 35 having an offset end 36 to engage any one of a number of transverse slots 33 in a flat portion 32 between the runway flanges 27, 28 and having a tongue 37 pressed out to project downwardly through a further slot 33 to provide a distance piece and elevator for the end card 21. Each runway flange 27, 28 is provided near to its ends with blister formations 60, 61 extending respectively upwardly and downwardly to deflect the tongue 25, 26 downwardly and slightly raise the rest of the card 21. The side strips 29 are similarly provided with a downwardly directed end 62 to facilitate transfer fromonerunwaytothenext. For aligning two card mounting panels 24, a transfer fixture 38 comprises a flat panel 39 and side walls 40 provided with rubber support members 41, having transverse strengthening members 42 and adapted to receive two panels 24 in end to end relation. To locate the panels, centre studs 43, having enlarged heads 45, are engaged by notches 47 at the ends of the panels 24 and pegs 44 are engaged by gauge slots 48, the panels being locked in position by a plunger 56 pressed upwardly by a spring 58 operating against a collar 59 on the plunger 56. A finger cut out 57 in the end of the panel 39 facilitates removal of a panel 24 when the plunger 56 has been depressed. For connecting together two panels 24 without a transfer fixture 38, each panel 24 may be provided at its lower edge with a slot or a slotted plate member with a projection or a plate member with a projection attached to the upper edge so that the projection on one panel co-operates with the slot of the next panel. As shown in Figs. 11 and 13 for use with card mounting units comprising a single runway 67, a transfer fixture 68 has central studs 69 engaging with shaped notches 71 at the ends of the runways 67 and pegs 73 cooperating with keyhole slots 74. Sliding latches 75 are provided at each end of the panel 70 of fixture 68 to engage opposite ends of a pair of aligned runways 67, each latch 75 being guided in a slot 76 and supported on a plate 77 secured to the underside of the panel 70. The latch 75 is operated by a lever 78 pivoting about a rivet 79 and connected by a rivet 80 to a link 81 to which the latch 75 is secured by a rivet 82, the rivets allowing free relative movements of the lever 78, link 81 and latch 75, and the lever 78 projecting beyond the panel 70 for operation and a tension spring 83 connected between the plate 77 and link 81 holding the latch 75 in its outermost position shown in Fig. 13. In a further embodiment, the runways themselves are interconnected by a projecting tongue on one runway having a reduced end portion to engage a slot at the opposite end of the next runway, each runway having both tongue and slot, the tongues having bent portions so that both runways lie flat when connected. In a further embodiment for connecting two run-. ways, holes are provided at each end of each runway and a connecting bridge piece has spaced studs to project through the holes. Specification 724,569 is referred to.