Patent GB-420524-A (GB)
Title: Improvements in and relating to the handling or feeding of bread or like dough pieces
IPC: A21C9/08
Filed: 1933-05-23
Abstract: 420,524. Panning-mechanism for dough. BAKER PERKINS, Ltd., POINTON, J. E., and HARBER, L. S., Westwood Works, Peterborough. May 23, 1933, No. 14907. [Class 87 (ii)] [See also Group VI] Flattened pieces of dough are fed in succession into a tin or container in a series of parallel planes substantially at right angles to the longitudinal axis of the tin or container, to produce a laminated loaf of the kind described in Specification 400,619, [Group VI], by a panner blade between which and the tin or container relative to-and-fro movement is effected, the tin or container being given a step-by-step travel transversely to the direction of the to-and-fro movement. The dough, after passing through a divider, a balling machine, a prover, a reballing machine, and flattening rollers, is passed between a roller 5, Fig. 1, and a conveyer 6 which is carried around a roller 7 adjustably mounted by eccentric means 8. The flattened dough pieces are discharged to a pair of rollers 9, 10, Figs. 1 and 4, the roller 10 being mounted on a hinged bracket 11 and displaceable outwardly, by the passage of a dough piece, to act as a detector to control the operation of the panner blade and the feed of the tins. The roller 10 is driven through spur gears 12, 12<a>, 12<b>, the driven gear 12 being mounted on the axis of the bracket 11, and the gears 12<a>, 12<b> carried by the bracket. The rollers 9, 10 are provided with scrapers 13, 60 the scraper 60 acting also as a shoot. The tins 22 are carried on an inclined conveyer 14 under the control of studs 16 on a chain 15, the chain wheel 17 being driven step-by-step through friction clutch and a ratchet wheel 19 engaged by a spring-loaded detent 20 actuated by a cam 21. The dough pieces are guided and fed into the tins by a reciprocating panner blade 23 carried by an arm or arms 24 mounted on a shaft 25. The panner blade 23 and the tin conveyer detent 20 are operated intermittently by a continuously rotating shaft 26 on which is loosely mounted a single-toothed disc 27 engaged by a detent 30 attached to bracket 11 carrying the roller 10. The disc 27 is driven from the shaft 26 through a friction clutch and carries a cam 28 actuating the panner blade 23 and also the cam 21 which actuates the detent 20. The ratchet wheel 19 is provided with a large step or tooth 19<b> to allow the chain 15 to move a distance corresponding to the gap between two tins. The conveyer 14 passes round a pulley 38 driven from the motor 41 through reduction gear 40, and the delivery of the tins from the horizontal portion 14<a> of the conveyer 14 is controlled by a trigger 33 operated by a tooth 36 on the shaft of the guide wheel 37 for the chain 15. The friction clutches, gear 12, rollers 9, 10 and the drum 48 of the conveyer 6 are driven by a chain 43 engaging a sprocket wheel 42 on the shaft of the pulley 38. The chain 43 passes over a tension wheel 49 and also drives a tappet wheel 51 for agitating a dusting device 54 for the rollers 9, 10. The roller 10 may be replaced by hinged flap actuated by the passage of the dough pieces, or by a light sensitive cell which, when the light falling thereon is interrupted by the passage of a dough piece, actuates a solenoid to lift the pawl 30.