Patent GB-645351-A (GB)
Title: Improvements in shaker conveyors
IPC: B65G27/00
Filed: 1947-03-10
Abstract: 645,351. Jigging conveyer frames. DEHN, S. G. (Goodman Manufacturing Co.). March 10, 1947, No. 6640. [Class 78 (i)] A shaker conveyer comprises a plurality of troughs 10, 15, 11, which are pivotally mounted end to end on a base 12 for reciprocable movement with respect to the base, and are movable laterally with respect to the base ; and a plate 14 overlying the base and carrying'the troughs and being resiliently mounted with respect to the base. As shown, the two conveyer troughs 10, 11 are separated by intermediate trough 15 so as to permit relative rotation therebetween, and the whole is flexibly mounted upon the base 12. 11 is the driving trough. Support for the junction between troughs 10 and 15, (Figs. 1, 2, 4).-The two troughs are rotatably supported at 23 by frame 25; frame 25 is supported by rollers 31 and 39, both journalled in frame 33; frame 33 is rotatably supported at 37 in floating plate 14, and floating plate 14 is resiliently supported by base-plate 12 at 70 and at 73. In the bottom of trough 10 is formed integrally a bearing boss 22 and round it pivots annular bearing 24 secured to trough 15. The boss 22 is also secured by through bolts 27 to the plate 25 so that trough 15 is rotatably pivoted between trough 10 and plate 25. Plate 25 has a rearward extension 44, and plate 25 and extension 44 respectively have bearing strips 30, 43 at each side of the conveyer, the strips forming runways for pairs of the rollers 31 and 39 journalled in the frame 33. Frame 33 pivots around and is supported by boss 37 carried by plate 14 which therefore supports the two troughs 10, 15. Support for junction of troughs 15 and 11 (Figs. 1, 3).-At this point, trough 15 rests on trough 11. Boss 23 formed diagonally on the bottom of trough 15 is secured by screws 54 to frame 55 therebeneath and, between trough 15 and frame 55, there lies the trough 11, the annular bearing 51 of which pivots around the boss 23. Frame 55 carries rollers 57 which run in bearing strips 60 secured to floating plate 14, so that trough 15 and frame 55 are fixed together and are loosely and movably mounted with respect to plate 14, and trough 11 pivots with respect to them all. Support for floating plate 14 (Fig. 3).-The plate is hinged at one side of the conveyer to base-plate 12 at 70 and at the other side of the conveyer rests on the base flanges of the two upright sleeves 74 which are welded to base 12. A bolt 76 passes upwardly through each sleeve, and its nut 77 and washer 75 press spring 73 down against plate 14. The plate 14 which supports the conveyers is therefore cushioned from the base 12. Hence, when the mine floor is uneven, base 12 will bend, but plate 14 will remain undistorted. Support from mine roof (Fig. 3).-Jack 13 between roof and base 12 secure the latter firmly and bear upon bearing plate 66, the latter being pivoted at 70 and such that it moves down into this position against spring 67. These plates 66 form part of a centring device (not described), whereby the stroke of the shaker conveyer will not force the rollers 57 to leave their runways. Mounting of rollers (Fig. 5).-Each roller (e.g. 57) is mounted top and bottom in eccentric bearings, the spindle having a nut secured thereto which is held in place by locking members 65. The nut is first turned and then locked by members 65 in the position where the rollers have a good grip on their bearing strips, the eccentric bearings causing displacement of the rollers.