Patent GB-593701-A (GB)
Title: Loading apparatus for trimming and spreading material
IPC: B65G65/22
Filed: 1944-12-08
Abstract: 593,701. Trimming and spreading apparatus; screw conveyers. HENDRA, H. J. Dec. 8, 1944, No. 24654. Convention date, Nov. 29, 1943. [Classes 78(i) and 78(iv)] A machine for distributing bulk cargo in a ship's hold, railway box car or other storage space. comp r i s e s a conveyer mounted on a turntable which is automatically swung horizontally first in one direction and then in the other. The screw conveyer A, Fig. 3, which is of the type having a spiral flight 10 formed on the casing, is formed in sections 12, 13, 14 which are connected by hinges 15, 16. The inlet end of the section 12 is provided with projecting and , inwardly inclined teeth 19 for breaking the material. The section 13 is formed with circular tracks 23, Fig. 4, which are engaged by rollers 21, 24 supported in brackets mounted on a frame 20. This frame is mounted on a turntable B which is rotated by a rotatable gear box C mounted on a circular table D and carrying walking pads F. The table rotates on a circular bed-plate E which rests on the floor. The ends of a line shaft H mounted in the gear box have eccentrics 27 fast on them, the straps 28 of which are pivotally connected to brackets 30 on the pads F. Rollers 32 carried by the eccentrics engage tracks 33 on the straps. 'A bevel gear 40 fixed to the section 13 is engaged by a pinion 41 on a sleeve 42 which is journalled in a housing 44 on the gear box C and connected by bevel gears 45, 46 to a hollow drive shaft I surrounding the shaft H. A track 48 on the underside of the platform rests on rollers 47 mounted in brackets on the top of the gear box, and a circular gear J secured tb the underside of the platform is engaged by a pinion 49 on a stub shaft 50, Fig. 9. Oppositely facing bevel gears 52, 53, are freely mounted on this shaft and are driven by a bevel gear (not shown) on a shaft which is driven through chain-andsprocket gearing by the gear 46. A slidable clutch element 59 keyed to the shaft 50 is moved by a lever 60 into engagement with either of the gears 52, 53 to rotate the shaft in opposite directions. The conveyer is moved from side to side by mechanism which includes epicyclic gearing L, Fig. 6, comprising a sun pinion 63 fast on the shaft I, planet gears 64 mounted on a carrier 65 and an internally toothed gear 66 forming part of the shuttle cam 67. This cam is mounted on the shaft I and is formed with an endless groove 69 which is engagad by a roller 71 mounted on the shuttle rack 70. This rack reciprocates in a guide 72 and engages a gear 73, Fig. 7, on a shaft 74, the upper end of which is connected by a gear 75 to the gear J. The gear 73 is free on the shaft, but may be connected thereto by a clutch element 79 actuated by a lever 80. The mechanism for rotating the gear box C includes an internally toothed gear 82 secured to the bed-plate E which is engaged by a pinion 83 on a shaft 84. A bevel gear 85 fast on this shaft is driven from either of the oppositely-facing bevel gears 86, 87 on the shaft I by moving the clutch element 88 in the appropriate direction by an arm 89 on a shaft 90. An arm 92 on this shaft is formed with a toothed segment 93 which meshes with a segmental pinion 94 on a shaft 95 provided with an actuating handle. The actuation of the walking device is controlled by a clutch element 96 which can be engaged with either of the bevel gears 97, 98. The former gear is fast on the shaft I and is connected by a bevel gear 100 to the latter gear which is fast on the' shaft H. Means is provided for actuating the clutch element which is similar to that used for moving the clutch 88. Specification 271,278, [Class 68(i).], is referred to.