Patent GB-467027-A (GB)
Title: Improvements in or relating to continuous sheeter and laminating machines
IPC: A21C9/04
Filed: 1935-12-09
Abstract: 467,027. Endless - belt conveyers; delivering material from hoppers. LOOSE, K. D., WATKINS, C. W., and GREEN, J. W. Dec. 9, 1935, No. 34087. Convention date, Oct. 2. [Class 78 (i)] [Also in Group V] A dough-treating machine comprises a dough holder, means for forming the dough from said holder into a sheet, a moving conveyer, a dough lapping device arranged to move transversely of said conveyer to deposit and overlap the dough sheet upon the conveyer, means for positively feeding the sheet to the delivery point of the lapping device in both directions of its travel, and means for maintaining the delivery point at a substantially constant height above 'the conveyer. Several dough holders may be provided to deliver a number of dough sheets, between which sheets, materials, called " enrichments " are deposited. As shown, the enrichment material hoppers 5 are interposed between dough hoppers 4, and have adjustable gates 91 to regulate the quantity of material removed by the conveyer 12 for delivery to the dough sheet previously deposited on the conveyer 18. The laminated sheet passes between consolidating rollers 170, 171, one of which is mitred at the ends to seal the edges of the dough, and is delivered to an upwardly inclined conveyer 195 which feeds it to rollers 240,241 positioned above an oscillating lapping device which lays the sheet in overlapping zigzag manner, as described below, upon a conveyer 310. The lapped dough is passed between further consolidating rollers and is again lapped and consolidated, the final product thus being composed of a large number of very thin, alternate layers of dough and enrichment material. Each of the lapping devices comprises belts 268 trained over rollers journalled between end frames which oscillate upon a shaft 258 carrying a gear -wheel meshed through an idler with the gear-wheel drive for the roller 240. The top rollers 266, 267 of the belts 268 are driven by gearing from the shaft 258. The intermediate belt tensioning rollers 269 are adjustable in the end frames by screws 273, whilst the rollers 274 are journalled at the upper ends of conconnecting rods 276 which slide in guideways 278 in the end frames. The lower rollers are journalled in members 277 to which the lower ends of the rods 276 are connected, and which reciprocate in a guideway, in such manner that as the la,pper oscillates the lower belt rollers, and consequently the point of discharge of the dough sheet, move to-and-fro in a straight horizontal line over the conveyer 310. The oscillation of the lapper is effected by a reciprocating double rack 281, Figs. 3 and 14, connected by a pin 280 to one of the sliding members 277, and guided in a dovetail guide- 28. The rack 281 is reciprocated by two mutilated gears 290, 291 rotating in opposite directions and engaging respectively with the rack teeth 292, 293. The rollers 170, 171, 240, 241 have means for adjusting the width of the passage. The conveyer 195 is passed around rollers 203 ... 206 and is driven by all of these rollers which are geared together and driven by a gear-wheel on the shaft 214. The conveyer 18 is similarly driven by the rollers 22 ... 25, all of which are geared together and are driven by a gear-wheel on the shaft 34. The dough hoppers 4 have adjustable guide plates 45 pivoted at 46 to the side walls. The sheeting rollers 55, 56 are adjustable by screw means 63 and are scraped by scrapers 67. The shafts 47, 48 carry worm wheels which mesh with right and left-handed worms on a common drive shaft. The conveyers and rollers are driven from a motor through change speed gear boxes so that the speeds of the components may be independently varied.