DE36564C - Hydraulic press - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 68: Pressing.

L. BRÜGGEMANN in HEILBRONN (Württemberg). Hydraulic press.

Patented in the German Empire by ig. January 1886.

The press consists essentially of the two circular cylinders d and i, which are provided with vertical slots and arranged axially. The cylinder d is screwed onto the hydraulic pressure cylinder c , while the cylinder i is pushed over the strong screw α fastened in the middle of the cylinder c and is held in place by the collar η attached to the latter. To reinforce the cylinder i , the cylinder 0 is pushed into it; In the same way, the pushed over cylinder / serves to reinforce the cylinder d against the pressure acting from the inside to the outside. In the cylindrical hollow spaces formed by the cylinders d and i , which are ring-shaped in cross section , the piston k , which is shaped correspondingly to the ring-shaped hollow spaces, moves, lifted in the cylinder c by hydraulic pressure.

At the upper end of the screw α a small pressure cylinder b is attached, in which the counter-pressure piston g moves and, when it descends into the cavity formed by the cylinders d and i , closes the latter at its upper exit. The channel d _L serves to drain the liquid pressed by the cylinder d , while the liquid pressed by the inner cylinder i enters the interior of the piston k and from here passes through the drainage pipes / out of the press installed in the bottom of the same. The tubes / are slidable in the bottom of the pressure cylinder c , but are watertight, so that on the one hand they can follow the movement of the piston k , but on the other hand no water can escape at the sealing points even when the pressure is exerted.

The tube e opens into the cavity formed by the cylinders d and i and serves to feed the material to be prepreg. The pipes ρ are pressure pipes. The sheet metal jacket m put over the cylinder f prevents the press residues expelled at r from falling into the channel ά _λ .

When the pistons g and k are depressed, that is to say they are in the position shown by FIG. 1 of the drawing, the inlet e is free, and through the same the material to be pressed in the cylinders d and i formed at the top by the piston g and brought down by the piston k closed cavity. When the pressure is now started, the piston k is lifted, the same closing the inlet e while compressing the material to be pressed, while the pressure exerted on the piston g at the same time keeps the latter in the position closing the cavity at the top. The squeezed liquid comes out through the channel d _x and the pipes Z, while the solid constituents remain in the cavity formed by the cylinders d and i. After sufficient pressing, the pressure exerted on the piston g is released, as a result of which the piston g is lifted and the pressing residues are completely pushed out of the now exposed upper opening of the cavity at r by the piston k .

Claims (1)

Patent claim: A hydraulic press, in which the vertical slots pierced and reinforced by the cylinders f and o, cylinders d and i form a hollow space which is annular in cross section and serves to hold the prepreg material, in which the two correspondingly shaped pistons g and k are arranged in this way , that when pressure is started the cavity is closed at the top by the piston g and, with the lifting of the piston k, both the inlet e and eirj close. • Compression of the material introduced by the latter takes place, whereby the priced liquid flows through the vertical slots, then through the channel (I ₁ and the Rohr.e /), while after sufficient compression the cavity is released by releasing the pressure exerted on the piston g is opened at the top and at this point with further lifting of the piston k the ejection of the test residues takes place. For this purpose ι sheet of drawings.