GB1326264A - Railway track and vehicles for use in underground mining - Google Patents

Abstract

1326264 Brakes KRAMPE & CO FERTIGUNG IN BERGBAUBEDARF GmbH 29 Oct 1970 [29 Oct 1969] 51351/70 Heading F2E [Also in Division B7] In a railway system for underground mining, freight cars 62, Fig. 8, run along a track composed of steel tubes 11, 12 supported on sleepers 18; each car runs on flanged rollers having concavely curved rolling surfaces 2 which engage a curved running surface 26 on the tubes, the axles 5 of the rollers being inclined obliquely to the centre of the track. The freight cars are pulled along by a rope, hauled traction car 36, Fig. 5, also running on flanged rollers 43, the traction car being ballasted by a reserve rope drum 36 and a brake fluid reservoir 33 and associated pressurizing installation 34. As shown in Fig. 8, each freight car has a chassis formed of two bars 45, 46 and cross members (47, 48, not shown, Fig. 7), on which are mounted bearings 49 to provide a tipping arrangement for a container 50. The bars 45, 46 are supported on bearing pins 53 which project from brackets 54 attached to a plate 56. By means of a vertical main pivot, the plate 56 rotates on an upper plate 60 of a bogie, each bogie being provided with four rollers fastened by supports 6, 7. As shown in Fig. 6 each freight car is supplied with safety brakes 65 for each bogie. The braking jaws 66, 67, which are tensioned in the direction of closure by a spring (not shown) are rendered inoperative by an hydraulic cylinder 70 supplied with brake fluid from the traction car. As soon as the freight car breaks loose from the traction car, the line running from the reservoir 33, is severed and the hydraulic pressure in the cylinder 70 drops, so that the brakes are applied by the spring. Also described (Fig. 9, not shown) is a system of rope guiding rollers for guiding the haulage rope 40 along the track. A guide system for the loose running rope is also described.