GB415063A - Improvements in or relating to conveyors - Google Patents

Abstract

415,063. Conveyers. REDLER, A., Severnsea, Sharpness, Gloucestershire. Feb. 15, 1933, Nos. 4685 and 10368. [Class 78 (i).] In an en masse type of conveyer in which flights are mounted on an endless chain, rope, cable, band, &c., the flights are angularly displaceable relatively to the chain &c. to enable the cross-sectional area of the ineffective return traverse to be reduced. Fig. 1 shows flights 5 pivoted by universal joints 6 to trail behind links 1, lugs 7 on the flights abutting against stops 8 to limit their swing to one direction. The flights after leaving the operative trough 3 are tilted by contact with the sprocket 9 and enter the smaller return duct 4 collapsed against the chain. The sprocket 9 may be on a power shaft 10 and has flats 11 and double teeth 12. Means may be provided on the opposite sprocket for bringing the flights back into operative position. Fig. 6 shows a modification in which the flights consist of two bars 23, 24 each pivoted to a link 21. The bars 24 are turned in on approaching the sprocket 26 by a bell-crank 31 tilted by a pivoted arm 29 swung by a cam 28 on the sprocket. The bars 23 are similarly turned in by contact of the sprocket teeth 27 with bosses 23A on the bars. The bars 23, 24 return to operative position by gravity, by frictional or other means, or by engagement with the load. The bars 24 may be omitted. Fig. 9 shows a further modification in which the flights have rigid projecting arms 43 pivoted to the common junction of links 45. Discs 48 on the sprocket wheel coact with parts of each flight to turn it into parallelism with the chain-links 45. Similar discs 51, spaced closer together, may be provided at the other terminal to effect turning of the flights into working position, or the turning may be brought about by gravity. In all constructions, one or more tilting flights may be provided which fill the space swept out in the operative trough and have brushes &c. around their edges to clean the trough. Specifications 169,262 and 316,233, [both in Class 78 (i)], are referred to in the Complete Specification, and the first Provisional Specification also refers to Specifications 243,770, 244,693, 249,570, and 323,204, [all in Class 78 (i)].