DE25658C - Device for relieving the cutting edges of scales and at the same time fixing the balance beam - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 42: Instruments.

Company GARVENS & CO. in Hannover.

of the balance beam.

Patented in the German Empire on June 7, 1883.

The results of the loading and unloading of the loads to be weighed or during the transport Bumps and shifts are in scales whose load bridge in uninterrupted The connection with the weighing mechanism remains, direct and not weakened, on the various Cutting the scales transferred, and cause various damage, as well as a disproportionate rapid wear of the same, as a result of which the weighing results very soon become inaccurate.

The one described below and illustrated in the accompanying drawing Device aims to address the shortcomings mentioned by relieving the cutting edge of the lower lever and remove the balance beam while at the same time determining the latter.

In the drawing, this device is in weighing position on a decimal weighbridge represented, namely gives:

Fig. Ι a side view, partly longitudinal section the scales;

2 shows a longitudinal section of the device in connection with the balance beam;

Fig. 3 is a front view of the same;

Fig. 4 is a rear view and a section of the support bearing of the balance beam and

Fig. 5 is a top view of the middle part of the balance beam and support bearing of the same.

The support bearing of the balance beam forms a bow-shaped slide a, which runs down into a rod b and, by means of four ^{tabs a 1} , Fig. 5, slides in guides of the frame part c surrounding the support bearing, while the rod b is guided in the bushing d will. The rod b is coupled to the ring e , which includes the eccentric disc /. On the horizontal axis i of the eccentric disk, resting in suitable bearings g and ^ ¹ and provided with a handle h , sits a second eccentric disk k, offset by 180 ° from the former, which acts on the head bolt m guided in a bushing /. In the weighing position of the balance, the eccentric disc / is directed upwards and the disc k, as well as the handle h, is directed downwards.

Should the balance be determined or the weighing mechanism of the same are relieved, the handle is moved in the direction of the arrow, FIGS. 3 and 4, upwards and brings the same to its highest position A \ FIGS. 2 and 3; the eccentric disc / goes it down and lowers α the sled and the balance beam by twice the eccentricity of the disc / _r same time, however, the disc moves k, lifts the pins m and the weight arm of the balance beam, then the load arm DAF same nor a turns further downwards. The weighing mechanism is thereby lowered so far that the load bridge of the balance rests on the weighing bed and there is a small margin between the bearing points of the balance and the support points of the weighing mechanism, so that jolts on the load bridge or displacements of the same are in no way transferred to the weighing mechanism can 'and the cutting only use this mechanism

Claims (1)

have to wear. Through the front eccentric disk Λ. is pressed, the balance beam against the upper inner edge of the bracket η and thus determined. Since the eccentric disks in both end positions are in relation to the support bearing or slide α and to the bolt m in the dead point, an automatic rotation of the same is excluded, further securing of these positions is not necessary. To limit the upward movement, a small stop k 'is provided on the eccentric disk k. It can be seen that the device described can also be used with scales of other systems, since by appropriate selection of the eccentricity of the disks / ″ and k, any inclination of the balance beam and / or. Lowering of the support bearing of the same can be effected. Patenτ claim: On scales the bearing of the axis of rotation of the balance beam in a slide a, vertically adjustable ■ by means of an eccentric disk /, on whose horizontal axis, resting in suitable fixed bearings and provided with a handle, a second eccentric disk k is attached, opposite to the former, through which the front arm of the balance beam is raised during the lowering of the support point of the latter by means of the eccentric disk /, in order to relieve the cutting edge of the balance and at the same time fix the balance beam when the balance is not in use or when attaching and removing the loads to be weighed. For this purpose I sheet drawings.