Patent GB-817366-A (GB)
Title: Improvements in power driven multiple revolving card files
IPC: B42F17/28
Filed: 1956-10-15
Abstract: 817,366. Filing papers. MOSLER SAFE CO Oct 15 1956 [Nov 8 1955] No. 31256/56. Class 146(1) A rotary card filing device, in which the cards are contained in peripheral compartments of coaxially mounted drums and in which endless belts are provided extending about the compartments within the lower portion of the drums to prevent cards from falling out, has a joint power drive provided, including at least one drive shaft extending parallel to the axis of the drums, and coupling means for each drum, operable at will, for transmitting power from the shaft to the drum for turning the drum in one direction or the other. Each drum 14 comprises compartments 15 for cards 16 formed by transverse partitions 17 having tabs 18 with a depressed central portion 19 engageable by an endless belt 31 by which the drum is rotated. The drums are mounted on a common shaft 24 (not shown) in a framework 12 enclosed by cover plates 13 opening at the top and one of which forms a shelf in front of the drums and their operating handles 20. A motor is housed in an end compartment 23 and through reduction gear, low speed shafts and right-angled gears 28 drives front and rear drive shafts 29, 30 continuously. Each belt 31 passes around the bottom of its drum, round return and guide pulleys 135, 126 and similar pulleys at rear and thence round idler pulleys 32, 33 free on shafts 29, 30, the belt' being tensioned by a pulley 43 mounted on a pivoted arm 44 biased downwardly by a spring 45 with a guide pulley 46 between the pulleys 33 and 43. Each drum has its own section of shafts 29, 30 mounted on bearings 136, 36 and operationally joined by couplings 138, 38 each comprising male members 139, 39 with projecting pins 140, 40 engaging the flat sides 142, 42 of rectangular elements 141, 41, the arrangement allowing as many drums as required to be coupled together and the removal of individual belts 31 when necessary. The idler pulleys 32, 33 are driven as required by a clutch 147, 47 slidable on the shaft 29, 30 and having laterally projecting pins 148, 48 engaging annular pockets 149, 49 in the pulleys 32, 33, the clutch being moved into and out of operative position by a stud 152, 52 on a claw 150, 50 engaging in a peripheral groove 153, 53 in the clutch 147, 47, the claw 150, 50 forming one end of a bell-crank lever 154, 54 pivotally mounted at 151, 51. The lever 54 is connected to an operating plate 60 at the front of the device by a rod 55. The plate 60 is pivoted at 61 to an arm 62 on the bearing 136 and is moved by a rod 63 pivoted on a pin 59 and extending up to the handle 20 which is mounted on a plate 75 secured to an arm 76 pivoted at 77 to the framework 12 and carrying a pin 78 to which the rod 63 is linked. The pin 59 is engaged by a link 57 connected to the lever 154 at 58, so that movement of handle 20 forwardly lifts rod 63 to move lever 154 so that clutch 147 engages idler pulley 32 to drive belt 31 in one direction and movement of handle 20 towards the operator depresses rod 63 to move lever 54 so that clutch 47 engages idler pulley 33 to driye belt 31 in the opposite direction, in each case the clutch not driven being moved further away from its pulley. At the central position of handle 20, a brake acts on the idler pulley 32 to hold the belt 31 against all movement, the brake comprising a shoe 65 pivoted at 66 to the bearing 136 and normally depressed on to the pulley. A spring 67 is adjustably mounted on a stud 68 on arm 62 extending freely through a brake lever 70 pivoted at 72 to arm 62 and having a bolt 73 resting on brake shoe 65. The other end of brake lever 70 carries a cam follower 71 engaging a cam 74 on plate 60 arranged so that rotation of the plate in either direction lifts the lever 70 and bolt 73 to release the shoe 65. Specification 604,099 is referred to.