Patent GB-362492-A (GB)
Title: Improvements in or relating to conveying, loading or like machines
IPC: E21F13/02
Filed: 1930-09-02
Abstract: 362,492. Endless-chain conveyers; loading-machines for mines. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire.-(Jeffrey Manufacturing Co. ; Columbus, Ohio, U.S.A.) Sept. 2, 1930, No. 26181. [Classes 78 (i) and 78 (iv).] A conveying or loading machine particularly for mines comprises an elongated gathering conveyer and a discharging or loading conveyer pivoted to one another about a vertical axis, the discharging conveyer being mounted to move about vertical and horizontal axes on a truck while its receiving end extends downwards towards the track, draught connections to the gathering conveyer being provided to swing it about its vertical connection to the discharging conveyer. Figs. 1 and 2 show the whole'assembly comprising the discharge conveyer A and the gathering conveyer B pivoted together at the vertical axis 133. Fig. 3 shows an enlarged plan of the gathering conveyer B, while Fig. 5 shows an enlarged vertical section through the shaft 26 forming the horizontal connection between the conveyer A and the' four-wheeled truck 20. The discharging conveyer is in two parts connected by pivots 28 lying in the plane of the bottom of the trough. Brackets 31 secured rigidly to the main section support the delivery section through adjustable screw connections 29, 30. The framework 24 carrying the electric motor 32 and the driving mechanism, is pivoted to the truck frame 20 by a turntable 25 through the centre of which may pass the chain 52 driving the truck wheels. The motor 32 drives the shaft 33 through a chain 34 and the shaft 33 in turn drives a chain wheel 37 mounted freely on the shaft 26. The hub of the chain wheel 37 is further connected by a short chain 47 to the shaft 45 arranged immediately below it. The pulley 49 for the truck driving chain 52 is connected by a clutch 50 to the shaft 45 when required. The chains 42, 43 with flights 44 of the discharging conveyer A are driven by pulleys 40, 41 keyed to the shaft 26, this shaft being driven from the chain wheel 37 by a clutch 38, 39. The rope 169 by means of which the gathering conveyer B may be raised and otherwise manipulated, is led over a drum 63 mounted freely on the shaft 45 and connected to it when required by a friction clutch 64. The drum is further controlled by a brake band 66. The gathering conveyer B includes a horizontal portion which engages the ground and an inclined part which is pivoted to a circular turntable 139 on the end of the discharging conveyer, so as to turn about the pivot 133. The conveyer B is further connected to the turntable by a horizontal pivot 165 so that it may be raised and lowered. This pivot 165 allows a limited amount of lateral rocking so that when the conveyer is moved sidewise the leading edge may tilt downwards and act as a scoop. An electric motor 160 drives a large bevel wheel 156 through which the endless chain 146 carrying the flights 147 is rotated, the conveyer being driven in either direction according to requirements. Coal brought along by the flights is discharged into the interior of the turntable 139 and the teeth of the gear wheel 156 help to move. the larger pieces. When the apparatus is working the receiving end of the discharge conveyer A is supported by rollers 131 running on the rails 23, but when out of action the gathering conveyer B is supported by a bogey 172, as shown in Fig. 10, and the rollers 131 are lifted clear of the rails. The lifting of the gathering conveyer is effected by the rope 169 running over the jib crane 112 to the pulley 63 on the shaft 45 and angular movement in a horizontal plane about the bogey pivot 177 is limited by chains 180. The gathering conveyer may be moved angularly to one side or the other, as shown in Fig. 13, by a rope 184 led over a jack pulley 188 and thence to the driving pulley 63, The gathering conveyer may be fixed at rightangles to the discharge conveyer by a diagonal stay and the apparatus may then be moved bodily either forwards or backwards by a rope 'led from the pulley 63 over a jack pulley anchored to the ground and thence to a point on the conveyer ; or the rope may be secured to a stake fixed to the. ground. The rope 184 is connected to the upper end of a bracket 150 on the gathering conveyer to ensure that the conveyer is tilted slightly sidewise so that the leading edge acts as a scoop as mentioned above.