GB278960A - Improvements in weighing scales - Google Patents

Abstract

278,960. Marks, E. C. R., (Toiedo Scale Co.). March 21, 1927. Bearings; links.-Relates to weighing-scales employing link connections between relatively movable parts, for example, a check link for preventing tilting of the platform, and consists in the provision of means for permitting universal adjustment of one of the knife-edged pivots of the link comprising a threaded shaft carrying the knife-edged member, a block in which the shaft is adjustably secured and means permitting of an oscillatory movement of the block for connecting same to a stationary part of the scale. The depending leg 9 of the platform spider carries a knife-edged plate 10 engaging the adjacent ends of two links 11, 12 the other ends of the links being engaged by a similar knife-edged plate 13 secured to the end of a threaded shaft 15, the links being arranged to form a pull and push connection with the knife-edges. The threaded shaft 15 is adjustably secured in a block 16 and may be locked by a screw 17. Loosely assembled within the block are two cylindrical stud shafts 19 through which are threaded a pair of screws 20 passing through a boss 22 in the scale base, sufficient clearance being provided in the block 16 to permit of slight oscillatory movement of the block relative to the screws. The block 16 has laterally-projecting ears 23, Fig. 3, to receive the thrust of adjusting screws 24 threaded through the boss 22. By adjusting the screws 20, 24 a limited universal adjustment of the post 15 and its knife-edged plate 13 may be effected to bring the link 11 into accurate parallelogrammatic relationship with the scale beam. The screws may bo adjusted without deranging the scale by removal of a cover 27.