Patent GB-209780-A (GB)
Title: Improvements in grain shockers
IPC: A01D75/06
Filed: 1922-08-17
Abstract: 209,780. Berry, B. C., and Dickinson, H. S. Aug. 17, 1922. Shocking-machines.-The sheaves are fed from a binder into a sheet-metal basket 29 strengthened by frame bars 32 and secured to tread members 33 each of which is flattened at the base to be clear of the ground when the basket is in the receiving position, and of which the inner is cut away at the top to give free passage for the sheaves from the binder. The basket and its tread members are carried on frame bars 25, 26, connected by a crossshaft 27 pivoted to brackets 12 on the main-frame 10 which is carried by castor wheels 18 at its forward end and main wheels 19, 20, at its rear. The bottom of the basket is formed with a central depression 30 for the first sheaf and the following sheaves are pressed on it to form the shock by a packing-arm 66 on a rock-shaft 65 operated by a link 63, connected to a crank driven from a chain wheel 41 on a shaft 39 mounted on the frame bar 26 and carrying the supporting hub for the inner side of the basket and its associated parts. The wheel 41 is driven from the main wheel 20 by a chain 44 that also passes over a jockey-pulley 45, Fig. 6, on an arm 46 carrying a tripping finger 50 adapted to trip a catch 52 pivoted on the frame member 26 and engaging in a recess in a supporting arm 54. The packing arm operates until sufficient sheaves have accumulated to cause considerable resistance to its movement, the chain-drive to the wheel 41 then pulling in the jockey-pulley 45 against the spring 48 and tripping the catch 52; the arms, 25, 26, then move downwardly about their pivot 27 bringing the tread members 33 into engagement with the ground. The tread members roll along the ground swinging the basket to its vertical position for depositing the shock; the packing-arm is maintained pressed against the shock until the latter rests on the ground when the forward movement of the machine brings it clear of the shock. Compressor arms 68, Fig. 8, to steady the shock during its deposition and to hold it while the rotating basket swings over its top, are mounted, on the opposite side of the machine from the packer arm, upon a shaft 69 that is carried in a bush 71 from which projects a transverse member 73 mounted in a bearing on the basket framework; the member 73 is provided with a toothed arm 76 meshing with a gear segment 77 on a lever 78 operated by a cam-roll 80 engaging with a cam 81 fixed to the frame 25. The arms 68 are normally held in a vertical position by a spring 72, but when the basket begins to rotate to deliver a shock the shaft 69 is turned by a stop 90 engaging a tail on its end until a recess 85 can be engaged by a dog 86 which then holds the shaft with the arms in horizontal position; as the basket reaches its horizontal position again the tail of the dog 86 is engaged by the stop 90 tripping the catch and permitting the arms 68 to take up their vertical position again. Tines 135 spread the sheaves apart to form the base of the shock as the basket moves into delivery position. After delivering the shock the basket continues its rotary movement until it reaches the receiving position again, its momentum sufficing to lift it sufficiently to enable the catch 52 to engage in the recess in the arm 54. The tread members are adjustable to varv the movement of the basket. The sheaves are fed to the the basket by delivering arms 94 provided with sheaf-engaging fingers 126 which move the sheaves upwards between guide bars 127 and tines 128. The actuation of the delivery arms is automatically arrested during the deposition of a shock.