Patent GB-213308-A (GB)
Title: Improvements in and relating to thrashing and the like machines
IPC: A01F12/14
Filed: 1922-11-27
Abstract: 213,308. Foster & Co., Ltd., W., and Tritton, Sir W. A. Nov. 27, 1922. Directing and supporting endless - belt conveyers; discharging- devices; driving-gear; suspending from overhead supports. - Sheaves are fed from a stack to a thrashing- machine by a conveyer arranged in a vertical plane parallel to the axis of the brake drum, a knife being mounted at an intermediate point of the conveyer to cut the binders of the sheaves, and a rotating combing cylinder having a higher peripheral speed than the conveyer being arranged at the delivery end to comb out the straws as they pass to the drum. The conveyer b is pivoted on a fixed shaft c and is supported approximately at its mid-point by an adjustable sling 42 hanging from a counterweighted lever 44 carried by a standard 48. The shaft c, Fig. 6, is provided at each end with a bearing in a bracket d secured to the frame of the thrashing-machine and is fitted at each end with sleeves i carrying bevel wheels e and pinions j. One of the wheels is driven from a similar wheel h<2> mounted on a stud-shaft g projecting from the bracket d, the wheel h<2> being connected to a sprocket h<1> driven from the thrashing machine. The pinion j drives the upper roller l of the conveyer belt through a pinion k, shaft k<2> and pinions n and m. The conveyer comprises the usual trough t in the lower part of which is mounted an endless belt u, or two parallel belts, provided with a series of cross-strakes, hooks, prongs or tines u<1>. Above the delivery end of the conveyer a combing cylinder or endless belt w driven by a sprocket at one end of the sbaft k<2> is carried by a shaft y supported in bearings on the sides of the trough t. The shaft k<2> also drives through a chain-and-sprocket connection a number of rotary knives 16 adapted to rise and fall over the conveyer. A spring-supported roller 18 is arranged under the conveyer belt to hold the straws with a yielding pressure up to the combing action of the cylinder w, or the cylinder may be yieidingly mounted to obtain the same result. A clutch may be arranged in the conveyer drive which is adapted to be thrown out should a large sheaf be engaged between the cylinder wand the conveyer, the clutch automatically re-engaging after the thickness of the sheaf has been sufficiently reduced by the action of the cylinder w. A screen 22 is arranged over the cylinder wand a canvas apron or barrier of light chainwork r prevents the straws being shot beyond the beating drum. The conveyer may operate on either side of the machine or may be fixed on the machine for transport. To shift the conveyer from one side to the other the driving member h<1>, h<2>, is detached, one of the bolts d<2> of the brackets supporting the shaft c removed and the shaft c with its associated parts swung about the other bolt d<2> as pivot until the conveyer reaches the mid-position shown in Fig. 6. The first bolt d<2> is inserted in the new position and the shaft c swung to its final position about this bolt as pivot the original pivot bolt being detached. The standard 48 is arranged to act as one of the pivot bolts.