DE309440C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

On automatic cars the device is made that the balance beam from his Starting position up to the end of the main inflow stream a certain angular movement must do in order to be able to effect the conclusion. There is also one on the car Graduating device attached, which to facilitate lifting of the weight tray serves to prevent premature emptying of the load tray.

The subject of the invention device makes this angular movement of the Balance beam unnecessary and removes the well-known gradation method. Through the Device the balance beam is held in the horizontal position and only after Completion of the main inflow stream released, so that it is prevented that by the the living force of the main inflow pressure exerted a downward movement on the load shell the load pan and thereby causes the latter to be emptied prematurely.

By determining the balance beam during the duration of the main inflow stream As already mentioned, the known gradation device becomes unnecessary; but further will the wear, the balance beam cutting less than with, the well-known wagons. Even there is an increase in the performance of the balance.

The device consists of a wing which is arranged in the load tray and which passes through the goods to be weighed with a certain filling

is moved away and thereby the 'held Frees the balance beam.

This device can be attached to carts whose load tray has a bottom flap is provided, and also on cars in which a tipping load tray is arranged.

The drawing shows the device in exemplary embodiments.

In the case of the scales provided with a bottom flap and shown in FIGS. 1 and 2, FIG. 1 shows the main inflow stream open and the balance beam held, while in Fig. 2 the The main inflow is closed and the balance beam is released; the goods to be weighed flow only in a thin stream into the load tray.

Within the load shell B , a wing b is attached to the axis α; a thumb lever is also located on this axis c. On the inlet channel d , an attack weight f is rotatably arranged about a bolt e ¹ , on the arm g of which a joint h, i is attached. The joint piece i is connected to the support lever k attached to the inlet channel d, which holds the inlet flap F in the open position by means of the arm I (FIG. 1).

On the carriage frame, a hook η is rotatably arranged about a pin m , which hooks the balance beam A, a shoulder 0 of the same under the same, during the inflow of the main flow. The weight tray C is held by the attachment fi attached to the trolley frame.

supports. The balance beam is therefore held completely rigid in its horizontal position.

The device works as follows;

The material to be weighed is channel through the gate of the load bowl B d respectively. As soon as the goods to be weighed that have flowed into the load pan have reached a certain weight or the load pan is filled to a certain extent

ίο, the weighing sample presses against wing b, causing it to move sideways. Simultaneously with the wing δ, the thumb lever c moves upwards and presses under the joint h, i, which lifts the support lever k and releases the inlet flap F so that it can complete the main inflow stream. In the meantime, when the joint h, i goes up, the hold-up weight f has reached its overturned position and its attachment q falls onto the arm r of the hook n, which releases the balance beam A. So the main inflow is closed before the balance beam is free. The purpose of this is to completely weaken the living force which the main inflow current exerts on the load pan before the balance beam is released in order to prevent the scales from breaking through, that is, to prevent the load pan from being emptied prematurely. When the main inflow is complete, the goods to be weighed only run in a thin stream into the load pan until the weighed goods that have flowed into it correspond to the weight placed on the weight pan C. The balance beam can swing freely downwards and effect the complete closure of the inlet channel.

In order to enable these mechanisms of the balance to be regulated, the attachment p, which supports the weight tray C , can be arranged so as to be adjustable.

In Fig. 3, the wing δ and the thumb lever c is arranged on a tipping load tray. In Fig. 4 the inlet flap F is supported by a toggle lever s. When the attack weight f is tipped over, the attachment q attached to it hits the arm t of the toggle lever s, causing it to buckle and the inlet flap F ' to close off the main inflow flow.

In Fig. 5, an arm u is provided on the inlet flap F , which, after the main inflow stream has been completed, hits the hook ν , whereby the latter releases the balance beam.

Claims (5)

Patent Claims: 1. Automatic scales with a device for holding the balance beam in the horizontal position, characterized in that a rotatable wing (δ) is arranged in the load tray (B) , which is moved with a certain filling of the load tray through the goods to be weighed and as a result of this movement released balance beam (^ 4). 2. Automatic scales according to claim i, characterized in that a hold-up hook (ή) is triggered by one of the rotatable wing (δ) moved hold-up weight (f). 3. Automatic trolley according to claim 1, characterized in that the wing (δ) arranged in the load tray moves a support lever (k) which thereby allows the inlet flap (F) to reach the final position. 4. Automatic trolley according to claim 1, characterized in that the inlet flap (F) is supported by a toggle lever (s) known per se and / aa rchMie Einkiuckung of the same rftälfÜberfallgewicht is bewlgi. > 5. Automatic scales according to claim 1, characterized in that a hook (v) is triggered by the inlet flap (F) after completion of the main inflow stream and releases the balance beam. 1 sheet of drawings.