Patent GB-1197822-A (GB)
Title: Improvements relating to Conveyors.
IPC: B65G25/10
Filed: 1968-06-27
Abstract: 1,197,822. Endless conveyers; roller conveyers. UNIROYAL ENGLEBERT FRANCE. 27 June, 1968 [5 July, 1967], No. 30637/68. Heading B8A. Apparatus for transporting a load to a predetermined location U, to and from which a support S for the load, is movable along a rectilinear path, a first transport means 3 engageable directly with the support S, a second transport means 2 spaced from the location U and linked with the first transport means 3 so that the support S may be transferred from one to the other, the second transport means 2 being engageable directly with the support S for moving it along a path transverse to that of the first transport means 3, the two transport means 2, 3 being effective to move the loaded support S to the location U and to return the unloaded support S therefrom. As described, the load comprises a tyre carcass BR which is loaded on to a support S on a roller conveyer 1. " Operation."-The conveyer 1 delivers the loaded support S to an extension RE 1 , of the conveyer 1. When the leading end of the load engages a limit switch I 1  the conveyer RE 1  is lowered to deposit the support S on to a laterally-spaced pair of conveyer chains 25, 25a, which constitute the transport means 2. Further limit switches are operated by the latter operation to step the conveyer 2 forward (upwards in Fig. 1) one chain pitch. Since all the transversely spaced pairs of links of the conveyer chains 25, 25a, between the conveyer RE 1  and a conveyer RE 2  forming an extension of a roller conveyer 3 constituting the first transport means 3 are loaded with a loaded support S, each step of the conveyer 2 carries a support S into position above the conveyer RE 2 . The conveyer steps of movement are brought about by an automatic controlling element (not shown) which also brings about the raising of the conveyers RE 1 , and R, E 2 , into their upper positions, and the end of each step. This latter operation thus causes the conveyer RE 2  to lift a loaded support S from the conveyer 2. Similarly the conveyer RE 1  lifts an unloaded support S from the conveyer 2 (the unloaded supports being carried round on the underneath return run of the conveyer 2 after being fed to the latter by the conveyer RE 1 . The conveyer 3 may be tilted upwards by an hydraulic jack into a position (Fig. 3, not shown) in which the tread BR can be applied to a receiving element (not shown). Construction of the endless conveyer 2.-Alternate links of the laterally spaced endless chains 25, 25a, carried by rollers running in channels 23, 23a, carry load supporting platforms 28, 28a (Figs. 8, 11) respectively. Each of the latter have latch members 32a which at the stations of transfer with the conveyers RE 1  and RE 2  are in alignment with apertures A in the supports S when the latter are in the positions in which their movement of conveyance on the conveyers RE 1  and RE 2  is terminated. Thus when the latter conveyers are lowered each respective support S is lowered on to the platforms 28, 28a, with the latch members 32a passing through the apertures P. As each unloaded support is carried away from the conveyer RE 2 , and around on to the lower run of the conveyer 2, guides 53, 54 (Fig. 1) engage the platforms 28, 28a, respectively and cause them to slide inwardly from the position shown in Fig. 11 to the position shown (in the case of the chain 25 only) in Fig. 8. This causes the latch members 32a to retain the supports S on the conveyer chains against the action of gravity on the return run of the conveyer. The roller conveyers 1 and 3.-A series of pairs of rollers 11, 12 (Figs. 1 and 5) engage inverted V-shaped sections of the supports S and are carried by shafts 10 supported in conveyer frame members 8, 9. The drive to each pair of rollers is transmitted by a toothed belt 15 engaging a pinion 13 on the roller shaft 10. A belt 16 engaging a pinion 14 in the same shaft 10 carries the drive on to the next adjacent pair of rollers 11, 12. The roller conveyers RE 1  and RE 2 .-These are constructed similarly to the conveyers 1, 3. but the framework supporting the shafts 10 is connected to pistons 37 which carry pins 37c engageable in slots 41a formed in a plate 40. When the plate 40 is reciprocated by a jack V 1 , the conveyer RE 1  or RE 2 , as the case may be, is raised or lowered according to the direction of reciprocation.