GB332129A - - Google Patents

Abstract

332,129. Toledo Scale Manufacturing Co. Oct. 17, 1928, [Convention date]. Counter scales; bearings; links.-In a weighing-scale the load-receiver is supported on the knifeedged load pivot of a lever having thereon a knife-edged retaining pivot which is engaged by a bearing member yieldably connected to the load-receiver. In alignment with the load pivots 8 which support the pans 11, 50, the scale lever 7 carries downwardlydirected pivots 12, 13, Fig. III, adapted to engage a trough-shaped bar 14 suspended from the pan support 10 by means of springs 18, 19. The pivots 12, 13 have vertical and rotative adjustment and prevent the support 10 from rising off the pivots 8. At one end, the scale lever carries an adjustable portion or member 37 clamped to the scale lever by screws 42, so as to have rocking adjustment about interposed pins 46. A pivot 73 on the member 37 is connected by links 71 to a weighted lever 69 coupled by a flexible band 80 to a pendulum mechanism co-operating with a weight and value chart 62. The weighted lever 69 is provided with three points of attachment for alternative connection with the flexible band 80 according to the angular position of the chart. The parallelism of the scale pans is maintained by two pairs of interconnected links 20 one pair acting in tension and the other in compression. The links engage an adjustable knife-edged plate 56 at the centre, and engage at the ends, knife-edged plates 25, Fig. III, carried by the pan supports 10. These knife-edged plates constitute the tops of threaded posts 26 attached to the pan-supports by nuts and washers 28, 29 the washers having cylindrical surfaces so that the posts may be tilted by adjusting two screws 31, 32. The post may be adjusted about a vertical axis by means of screws 33, 34. Casings.-The base housing is in two parts 87, 88. The dial housing rests on a stand 51 and may be set at angles of 45‹ and 90‹ relative to the position shown. Vibration, neutralizing.-One of the pan supports 10 is connected by a gimbal to the stem 90 of a dashpot plunger. Apertures in the plunger may be adjusted by a knob 92.