Patent GB-391869-A (GB)
Abstract: 391,869. Calculating-apparatus. BURROUGHS ADDING MACHINE CO., 2nd Avenue, Detroit, Michigan, U.S.A.- (Assignees of Muller, R. L.; 2nd Avenue, Detroit, Michigan, U.S.A.) Oct. 1, 1931, No. 6509/33. Convention date, Oct. 2, 1930. Divided on 392,181. [Class 106 (i).] In a machine having a plurality of totalizers carried in a movable magazine or reel means are provided for setting the magazine for selecting the totalizer for operation the said means being under the control of the paper carriage or manually by key-operated connections. The invention is described as applied to the Hopkins machine of Specifications 18058/07, 18320/08, 18321/08, and 18322/08, [all in Class 106, Registering &c.]. Totalizer selecting mechanism. The totalizers 47, Figs. 3 and 4, are carried in a rotatable reel 40 mounted on a pin 41. The reel tends to rotate counterclockwise, Fig. 3, under the action of a spiral spring 60 but is normally held by a pawl 62 engaging a ratchet toothed ring 61 secured to the reel. The pawl is pivoted on a stud 63 and has a stud 65 engaging a slotted arm 66 fixed to the end of a push rod 67 fitted with a key 68, Fig. 1. Depression of the key 68 rocks the pawl to release the ratchet disc 61 and permit the reel to rotate. Too rapid movement is prevented by a centrifugal governor 73 geared to a ring of teeth on the reel, Fig. 5. The adjusted position of the reel is indicated by a pointer 141, Fig. 1, on a dial 140, the pointer being geared, through a sleeve 145, shaft 148, and shaft 104, to a ring of teeth 106 on the reel. Carriage control of reel. The stepwise forward rotation of the reel may be controlled by stops 80, Fig. 4, adjustably mounted on the paper carriage bar c which co-operate with a pass-by pawl 81 carried by an arm 82 secured to a shaft 83, Fig. 3, on which is another arm 85 connected by a link 86 to a lever 89 on the stud 63 and engaging a pin 91 on the pawl 62. Rearward movement of the arm 82 rocks the pawl 62 momentarily to allow the reel to advance one step, further movement being prevented by a nose 92 on the lever 89 engaging a tooth of the ratchet plate 61. This escapement mechanism may be controlled by a key. Restoring mechanism for reel. To return the reel to its normal or other selected position the motor 21 through gearing drives a shaft 100 adapted to be coupled through a clutch 102, Fig. 6, to the shaft 104. The clutch is controlled by an arm 110 on a shaft 113 to which is fixed a bell crank 114 operatively connected through a linkage 115 .. 119 to the lever 120 of a key 123. The reel may be stopped at any desired position by releasing the depressed key. If the key is kept depressed the clutch will be automatically disconnected at the normal position by a pin 69 on the reel abutting against a lever 70 fixed to the shaft 113. Provision is made for automatically returning the reel under control of the carriage return key 130. Depression of this key through a key lever 131, Fig. 7, and link 132 operates an arm 133 to rock the bell crank 116, thereby throwing in the clutch 102. To ensure this action being completed, even if the carriage return key is immediately released, the arm 133 is held down by a latch 137 until the clutch is positively reopened by the pin 69 on the reel.'