Patent GB-700697-A (GB)
Title: Sheet counting and marking apparatus for web-cutting machines
IPC: B65H33/04
Filed: 1951-02-22
Abstract: 700,697. Delivering sheets in counted batches. STRECKER, G. [trading as STRECKER KOMMANDIT-GES. DR. O.C.], and MASCHINENFABRIK ZUM BRUDERHAUS GES. Feb. 22, 1951 [Feb. 22, 1950], No. 4348/51. Class 100 (1) In sheet counting apparatus for a transverse web cutter a final shaft is driven from a first shaft through a plurality of serially coupled change speed gears the ratio of which can be selected to give a reducing factor corresponding to the ream number and a multiplying factor corresponding to the number of rolls from which webs are being cut simultaneously, the final shaft operating to initiate actuation of a marker strip insertion device. As shown the first shaft a Fig. 1, which may be the blade operating shaft or a shaft running in synchronism therewith, drives a shaft b through a variable ratio speed gear N1, the shaft b driving a shaft c through a similar gear N2, and the shaft c driving a final shaft d through another similar gear N3. The gear N2 is the multiplying gear, whilst the gears N1. and N3 are the reducing gears. Cams A. B, C, D on shafts d, c, and a serve to actuate a strip inserting mechanism, Fig. 2. This mechanism comprises a storage relay S energised when both cams A, B, the cam A running slower than the cam B, complete their switch contacts 2, 14, and 14, 9 respectively. The relay S completes a holding circuit for itself over switch contacts 11, 12, and upon revolution of the cam c to close its switch contacts 12, 1, a relay U is energised. Relay U completes a holding circuit over concontacts 2, 3 of a relay V and relay U contacts 1, 3. As the cam C continues to revolve to move its switch contacts back to the position shown, relays T and R are energised over cam C switch contacts 6, 1, and 8, 7 respectively. Energization of the relay R serves to de-energize relay S irrespective of the position of the cams A, B so that should the cams A and B still maintain their switch contacts closed at this time in the strip inserting cycle a second cycle will not be prematurely initiated. Energization of the relay T serves to put a voltage on the switch contacts 6 of the cam C, so when the cam C again operates its switch to close contacts 6, 13, the winding W of the strip inserting device is energized together with relay V. Relav R is also de-energized unless the cams A, B are still maintaining their switch contacts closed, in which event it becomes de-energized on the breaking of one of the contacts 2, 14, or 14, 9. Energization of the relay V de-energizes relay U. The cam D now operates its contacts 2, 16 to maintain the signal to the winding W and to maintain relay V energized whilst the cam C switch contacts are again operated to de-energize the relay T. When the cam D breaks its switch contacts 2, 16 the counter is restored to its initial condition. If desired instead of the gears N1 and N3 or N3 alone a plurality of fixed ratio gears may be employed each driving a shaft d and cam A, the selection of the correct ratio gear being effected by a selector switch, Fig. 4 (not shown). Specification 611,978 is referred to.