940,723. Self-loading vehicles. E.WEICHEL. May 10, 1961 [Nov. 15, 1960], No. 16982/61. Heading B8E. A mobile self-loading platform such as an agricultural trailer 1 is supplied with material by means of a vertically-feeding conveyer 11 and also incorporates a horizontally feeding conveyer 2 by which the material is displaced along the platform, the two conveyers being simultaneously operated during loading and their relative speeds being adjustable to control the compactness of loading. The vertical conveyer 11 consists of prongs towards which material, e.g. hay, lying on the ground is fed by a pick-up device such as the spiked roller 7. The prongs are mounted on shafts 12, the ends of which are rotatably supported in the discs 67 (see Figs. 2 and 3). As the discs rotate, a cam 26, Fig. 13, causes the prongs to be alternately projected to extend radially (as at 73, 74) and withdrawn to extend tangentially of the discs 67 so that they fork up material fed toward them by the feed roller 7 and push this material into a vertical duct 13, whereafter they retract until extended by the cam 26 in preparation for their next feed stroke. Within the duet 13 the material moves upwardly -either solely under the action of the prongs but being prevented from falling back by, projections 21, Fig. 3, or with the assistance of a rake-like reciprocated (Fig. 5, not shown) or endless (Fig. 6, not shown) conveyer acting in the duct. At the tip of the duct the material passes over the end wall of the trailer and falls on to conveyer 2. The latter is an endless belt or scraper conveyer driven stepwise by a pawl 51 and ratchet 34, Fig. 2. The pawl is operated by a coupling rod 37 which connects it to a crank 36 of adjustable length. This crank is driven by the shaft 35 which also drives the prong conveyer 11 and the associated pick-up device 7. To unload the trailer, rear doors 38 are opened and the floor conveyer 2 is used as the unloading means.
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