GB1243307A - Improvements in or related to attendande recorders - Google Patents

Abstract

1,243,307. Attendance recorder. MITE CORP. 1 July, 1969 [5 Nov., 1968], No. 33243/69. Heading G4T. An attendance recorder for use with a time card having columns for each day of the week, and rows for different times of the day, comprises clock 22 (Fig. 2) operated print wheels 23 and a cardholder 28 that are relatively movable across the columns to change the day of the week; and time controlled means that shifts the card across the rows and comprises a timer 52 which operates a ratchet sector 44 through a feed pawl 50, a shift arm 40 carried by said ratchet sector to control the card position, knock-off means 72 to disengage the feed pawl and return the card to a starting position, and releasable look means 114 (Fig. 3) to secure the shift-arm 40 and knock-off means 72 at desired angles to the ratchet sector 44. As described, the print wheels 23 (Fig. 2) and the card holder 28 are manually movable horizontally to position the wheels over an appropriate column on an inserted card. Depression of a handle 36 forces the time card and a slowly moving ink ribbon 24 against the type; alternatively automatic printing may be actuated by a contact at the base of the time card. Card positioning vertically.-The arcuate tip 64 (Fig. 3) of the shift arm 40 is moved vertically at fixed times during a day to align one of six rows representing IN, IN LATE, OUT, IN, IN LATE, OUT on an inserted card, successively with the print wheel 23 (Fig. 2). The face of a 24-hour timer 52 carries at said fixed times brass inserts 58 which close a contact 60 and momentarily energize a solenoid 46, so producing .downward movement of the feed pawl 50, the ratchet sector 44 being restrained by a check pawl 68 (Fig. 3). On de-energization of the solenoid, the pawl 50 pivots the ratchet sector 44 upwards about an axis 42 under the action of a spring 66. After the final required row has been printed, a subsequent energization of solenoid 46 brings the pawl 50 against a projection 70 on the knock-off sector 72, to disengage the pawl 50, and also the check pawl 68 through co-operation between an attached pin 82 and a slot 144 in a latch 130. The latch 130 then holds both pawls in disengagement until the shift arm 40, ratchet sector 44 and knock-off sector 72 return to their starting positions against a stop 108. The check 68 and feed 50 pawls are released again on a subsequent energization of solenoid 46. The shift arm 40 and knock-off sector 72 are releasably locked to the ratchet sector 44 by a screw 114 and nut 120 respectively (see also Fig. 9, not reproduced). Their angles to the ratchet sector determine the positioning of the initial and final printing rows respectively on the card, and their relative angle determines the number of rows, up to sixteen, that can be printed.