DE77786C - Machine for sorting or stone selection for grain crops - Google Patents

Description

IMPERIAL

PATENT OFFICE

The subject of the present invention is a machine for sorting or stone extraction for grains. It is suitable for excreting foreign admixtures from grains, which are equal to the grains in their diameters, i.e. through sieving devices cannot be separated from the fruit. Such admixtures can be, for. B. stones or To be on fire by the wheat. In particular, however, it is peeled for separation and unpeeled rice grains and differs from other known machines of this genus mainly by the new form of the throwing plates, which enables that In a smaller space, with less effort, constantly achieves greater performance will. The shape of the throwing trays also prevents the greasy texture some types of rice on similar machines quickly become dirty working Sides and bases that the. Adversely affects work.

In the accompanying drawing, a machine of 24 chambers is represented by FIG. 1 in section A in the upper view, in section B in area II and in section C in plan II-II. Fig. 2 shows the same in section xx of Figs. 1 and 3; FIG. 3 shows the same in section along yy in FIG. 1, FIG. 4, on the other hand, in section \ - \ in FIG. 1; in this representation the frames α and _{a x} , which form the two main components of this machine , are separated. The group figures 5 and 6, of which the former represents the older known form, explain the differences between the two forms in more detail.

The machine, which forms two floors, initially consists of the two wooden frames α and a _x (FIGS. 3 and 4), the inclined surfaces of which are covered with sheet metal floors bb _Y. On these floors bb _x the throwing plates c C _{1 are} attached, through which the working departments (chambers) d J ₁ arise in connection with the floors forming their base. The feed trough e is used to feed the machine. The front side f of the same (FIG. 2) is provided with cutouts g g-, for feeding the working departments dd _x , the lower departments being fed by g, the upper departments by g _]. To regulate the openings of these cutouts g and g _{: they} are each equipped with an adjustable slide h . The retaining screws i prevent the slide h from being adjusted by the movements of the machine.

The movement of the machine is a reciprocating movement in the direction of the arrow k (FIG. 2).

The machine works as follows:

As a result of the movements of the machine, the material to be sorted, which has entered the feed trough e through the pipe inlet, exits the same through the openings g and g _x (Fig. 2 and 3), and if it falls it arrives in the divisions dd _x , where it goes from the throwing plates c C ₁ - and is thrown around and, as a result of the different gravity and mobility of the individual grains, is divided into two types, in such a way that

Claims (2)

that the peeled grains move in the direction of the arrow r, while the unpeeled go off in the direction of the arrow s (Fig. 6). The operation of the machine is mainly determined by the shape and material of the throwing plates. The shape of the throwing plates (Fig. 6) is not always acute angles compared to other known machines (Fig. 5), but the throwing plates meet at the junction in two obtuse angles. This arrangement ensures that the grains moving in the direction of the arrow s come into a rotating movement, the direction of the arrow p, which causes the sorting to take place faster and more cheaply than is the case with throwing plates which are always at an acute angle. This rotating movement also has the effect that contamination of the throwing plates in the machine can only occur with great difficulty, while such contamination often occurs very quickly in machines with exclusively acute-angled throwing plates. In order to achieve all the advantages cited above, it is also necessary that the material of the throwing plates be of uniform hardness and smoothness; According to the inventor, this is the case with polished sheet steel. As far as the space savings are concerned, FIGS. 5 and 6 illustrate that the shape (FIG. 6) takes up less space than the known shapes (FIG. 5). The saving of space is desirable in the manufacture of such machines because a larger number of throwing plates is always required in order to manufacture a machine of useful performance. Pa te ν t claims: 1. A machine for sorting or stone selection for grain crops, in which the The working surfaces of the throwing plates sometimes form obtuse angles with one another to cause a rotating movement of the goods to be sorted at these points (Fig. 6). 2. The production of the throwing plates marked under 1. from polished steel, um to avoid that. the contamination of the work surfaces by the sortirgut the rotary movement the latter impair. 1 sheet of drawings.