Patent GB-184827-A (GB)
Title: Grain shocker
IPC: A01D75/06
Filed: 1921-03-19
Abstract: 184,827. Lofstrand, A. P., and Allen, L. P. March 19, 1921. Shocking-machines.-A shocking-device for attachment to a binder is supported by a U-shaped main frame 10, 11, 12 carried on a main wheel 23 and provided with vertically - adjustable caster wheels 63, 64, 65 on which the device may be transported when detached from the binder. The rear open end of the U-frame is bridged by an upwardly arched frame comprising vertical side portions 13, 14 and a transverse portion 15. An auxiliary frame 29, 30, 31 is connected to the main frame by a universal joint 28 and is provided with vertical supports 47, 48 bridged by a member 51 and carrying transverse bars 49, 50. The vertical supports carry near their upper ends a longitudinal frame 52, 53, 55 which is slung from the transverse member 15 of the main frame by a chain 196 and which is resiliently held within the main frame by springs 197. The wheel 23 drives through a chain 27 and a one-way clutch 19, a shaft 17 mounted in the main frame and carrying a chain wheel 34 by which motion is imparted to a shaft 33 mounted in the auxiliary frame. A second shaft 32 mounted in the auxiliary frame is adapted to be driven at intervals from the shaft 33 through chain gear 39 and a clutch 45, 46, a spring 42 tending to close the clutch. A longitudinal shaft 69 is mounted in bearings carried by the auxiliary frame and is driven from the shaft 32 by a belt 72. The shaft 69 supports the side frames of a conveyer 81, 82 by which the sheaves are carried from the binder to a receiving-cage 108, the further end of the conveyer being adjustably supported on the binder. The conveyer frame carries standards 84 in which a timing drum 86 is mounted, the drum being provided with fingers 87. Another pair of standards 89 on the conveyer carries a shaft 90 on which V-shaped members 91, 92 oscillate. The arms 91 are curved at their ends to enter sockets in the drum 86. The sheaves are delivered from the conveyer into the cage 108 which has an entrance 111, an open forward end, and is provided with an annular member 109 at its rear end. The cage is carried at its forward end by a saddle 112 having vertical end nieces 113 which are connected bv a tube 114. Rods 118, rigidly connected to brackets 115 bearing against the outer faces of the end pieces 113, extend into the tube 114 at each side. The brackets 115 carry grooved guide-rollers 116, 117 which bear above and below tubular track members 103, 104, hung by links 100 and springs 101 from the rear end of the longitudinal frame 52, 53, 55 and connected at their forward ends by a rod 107. At its rear end the cage is carried by a similar saddle 119 pivoted on brackets 120 carrying rollers 121, 122 riding on other track members 96. The cage also carries brackets 123 through which a rod 124 extends. Each end of the rod is connected by a rod or cable 124<1> to a cable 129 extending over a pulley 126 at the rear end of the longitudinal frame and connected by a turn-buckle 130 to a chain 128 passing over a pulley 127 on a forward standard and over a chain-wheel 125 secured to the shaft 32, the end of the chain being secured to the other end of the cable 129. The annular member 109 of the cage forms a guide track for rollers 174 mounted on short shafts extending between discs 172, 173 inside and outside the cage respectively. The disc 172 has attached thereto a member 175 having radially disposed forked members 176 over which L-shaped members 177 slide. The members 177 are secured at their rear ends to a disc 178 and at their forward ends to a spider 179, the hub of which is tapered to engage in a non-circular socket 134 in a curved stop-plate carried by a shaft 131 journaled in the transverse bars 49, 50. The shaft 131 is connected by chain gear 137 with the timing drum 86 and also carries a bevel-wheel 140 on a sleeve driven from the shaft 32 through an oblique shaft 142. Pointed rods 182 are pivoted between the forked-members 176 and are adapted to be engaged by stops carried by the members 177. These stops cause the rods to be inclined and withdrawn within the L-shaped members 177 when these members slide down the members 176. In operation, the sheaves passing up the conveyer raise the member 92, 91 freeing the timing drum 86 and rotating it by engaging the fingers 88. This rotation rotates the members in the cage through the chain 137, shaft 131 and socket connection 134. The gearing is so proportioned that when two of the sheaves have passed into a pocket between the fingers 182 nearest the opening the fingers will have rotated sufficiently to bring the next pocket into receiving position. After all the pockets have been filled, the movement of the shaft 131 causes a cam plate 145 to operate a lever throwing in the clutch 45, 46 driving the shaft 32. The cage is then drawn rearwardly by the cables and chain 129, 128 and owing to the shape of the tracks 96, 103, 104 takes up a vertical position, permitting the shock to pass through its open end and be deposited on the ground. The heads of the sheaves are pressed in towards the centre of the shock by plates 187 pivoted on a ring encircling the members 177 and connected at their outer and inner extremities respectively to ropes 188, 189 connected to a spring 194 secured to the rear end of the frame. As the sheaf is deposited the members 177 slide downwards slightly over the members 176 and withdraw the rods 182. When the spider 179 leaves the socket in the shaft 131 the shaft is given a slight rearward movement by a spring 138 and this movement throws out a clutch operating the belt 72 driving the elevator from the binder. The sheaves thus accumulate on the binder until the' cage is in receiving position again. While the cage is moving rearwardly the shaft 32 is rotated, driving the oblique shaft 142 and the sleeve carrying the pinion 140. This sleeve carries an arm adapted to engage the camplate 145, and after the sleeve has turned sufficiently the cam-plate is operated to throw out the clutch 45, 46 thus stopping the movement of the cage. The sleeve member 45 is then gradually moved rearwardly through a delayaction device until a friction cone on this member engages a friction cone 40 on the shaft 32. The shaft 32 then rotates in the reverse direction to its previous movement and brings the cage back into receiving position once more. The delay-action device permits the machine to clear the sheaf before the cage is moved. In working on uneven ground the position of the lower track members 103, 104 may be adjusted to maintain the deposited shocks vertical by a bell-crank lever attached to the rod 107 joining their forward ends.