SU49336A1 - Automatic Scales - Google Patents

Description

In the proposed automatic scales with a swinging bucket divided by a partition into two parts for alternately keeping the bucket from tipping over to the other side until it is filled with a portion of the substance to be weighed, in the end wall of the drum carrying the bucket there is a shaped cut with ledges into which a spring-loaded roller is sequentially inserted .

In FIG. 1 shows a schematic section of an automatic scale; FIG. 2-modifying them,

In the frame 2 (Fig. 1) a drum / is installed on the roller 3 in ball bearings.

A double-sided bucket 19 is attached to the drum with bolts 4 so that the drum can swing in the frame with a bucket attached to it.

The swing of such a system holds the ball bearing 3, which is mounted on the roller 9, fastened (by nut) with the lever 7 /, hinged on the roller 12, attached to the casing 18 of the balance.

A clip 75 is put on the same roller 9, for which the spring 15 is fastened with one end and fixed to the fixed bracket 14 with the other end. The spring tension is regulated by lifting

or lowering the bracket 13 on the roller 9 with the adjusting screw.

In one of the end sides of the drum 7, a shaped notch 27 is made to extend the ball bearing of the roller 9 in it, which is provided with two benches, as shown in FIG. one.

The roller 9 serves to keep the bucket from tipping over when it is filled with a substance to be weighed.

At the time of filling the bucket to the desired weight, established by constant tension of the spring 15, the roller ball bearing 9 leaves the ledge and the bucket falls down and during this period the hole in the frame through which the substance to be weighed into the bucket overlaps the drum wall, of course, the friction tolerance of the drum on the frame, which would cause an error in weighing.

The bucket by inertia flies in the opposite direction and the roller ball bearing 9 enters the second step of the notch and the filling of the second half of the bucket and the emptying of the first one begins. The number of fillings of the bucket to a certain weight when tilting it is taken into account by the total counter 20 by means of a system of levers associated with the roller 9.

In a modification of the weights shown in FIG. 2, the bucket is held at the moment of filling with the substance to be weighed. The levers are loaded with loads 25 mounted on supports 26. The bucket is equipped with spring latches 24 attached to its wall and provided with notches that drop onto the free shoulders of the levers 27. When the bucket is filled to the desired weight, the bucket is held by the lever arm 27. At the moment of filling with a corresponding portion of the material to be weighed, the weight 25, which is previously balanced, rises, and the shoulder 27 releases the bucket, the latter falling, being freed from the weighed portion, and rising by inertia; the shoulder 27 of the second lever falls into the recess of the spring latch 24 and holds the bucket until the second part is filled, and so on.

The subject matter of the invention.

Claims (2)

1. Automatic scales with a swinging bucket divided by a partition into two parts, differing in the use of a shaped cut 2 / in the drum wall / with ledges for inserting into one of them a spring-loaded roller 9, designed to alternately keep the bucket from tipping to the other side, prior to filling its portion of the substance to be weighed. 2. Vibration alteration according to claim 1, characterized in that instead of a shaped cut-out and a roller, in order to keep the bucket in one position or another, two levers with weights 25 are used that extend their free shoulders into the spring cut-outs for lye fixed to the wall bucket (Fig. 2).