GB242332A - Improvements in and connected with conveyor mechanisms - Google Patents

Abstract

242,332. Tugwood, R. J., (Jeffrey Manufacturing Co.). July 31, 1924. Endless chain push-plate conveyers; pushplates and scrapers, construction of; driving- gear; sectional framework; guiding; idler rollers; portable conveyers.-The framework of a scraper conveyer for conveying coal from the working face is made in readily disconnectible sections which are coupled by means permitting flexure in vertical and horizontal planes and which can be moved laterally by jacks &c. to insert the scrapers beneath the coal. A pair of angle bars 8, Fig. 6, is bolted to the bottom plate 6 of each intermediate section 4 and is connected by a ball-and-socket joint to the bars of the adjacent sections. The socket is formed so that the sections may be disengaged by relative vertical movement. A top plate 14 detachably secured to the bars 8 is formed with flanges 16 which in conjunction with bars 17 attached to the plate 6 act as a guide for the conveyer chain 1. The outer end of each scraper 2 is bevelled downwardly and the inner end is mounted on a horizontal pivot attached to the chain 1. The sides of the scrapers are also bevelled. The chain is flexible in both vertical and horizontal planes and has coupling links at intervals. Guides 20 and a shield 22 are attached to supports 21 mounted on the plate 14. The turned up scrapers 2 rest on the guides 20 during the return run. Guide bars 20, 36 on the end section 5, Fig. 3, turn the scrapers from the horizontal to the vertical position and vice versa. Guideways 26, 27 for the chain are provided on the section 5 of similar form to those on the sections 4. The shaft 28 of the idler chain wheel 25, Fig. 10, is mounted in a journal bearing 29 formed on a slider 30 and has a thrust collar 31 attached to the upper end which contains oil. The tension of the chain is varied by adjusting the position of the slider 30 by screw-and-nut mechanism 35. The end section 3, on which the driving wheel 43 and motor 64 are mounted, is provided with an inclined trough 44, 45 up which the material is carried to an elevated delivery point. Guideways for the chain and guide bars for the scrapers are provided on this section. The sprocket wheel 43 is rotatably mounted on a fixed shaft 50 and its hub 51 is connected with a bevel gear 52. A sprocket wheel 58 free on the shaft 54 is connected by a shear pin 59 to the flange 57 of a hub 56 fixed to the shaft so that breakage of the driven parts under overload is prevented. The shaft 54 is connected with the gear 52 by a gear 53, and the sprocket 58 is driven through chain gearing and reduction gearing by the motor 64.