US230287A - Machine for making paper-filtering stones - Google Patents

Description

(No Model.)

, 'B'. KLARY. v Machine for Making Paper Filtering Stones, 8w.

Patented July 20,1880.

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NiPEIEiISv PHOTOLITHOGRAPNER. WASHINGTON. D C

UNITED STATES PATENT OFFICE.

BONIFAOIUS KLARY, OF ESSLINGEN, WURTEMBERG, GERMANY, ASSIGNOR T0 JOHN JARISGH, ()F HOLYOKE, MASSACHUSETTS.

MACHINE FOR MAKING'PAPER-FILTERING STONES, 84C.

SPECIFICATION forming part of Letters Patent N0. 230,287, dated July 20, 1880,

Application filed June 3, 1880. (No model.)

To all whom it may concern Be it known that I, BONIFAOIUS KLARY, a citizen of the Kingdom of Wiirtemberg, in the Empire of Germany, residing at Esslin gen, in the Kingdom of Wiirtemberg, have invented a new and useful Improvement in Machines for Making Paper-Filtering Stones and the Product of such Machines, of which the following is a specification.

This invention relates to the construction and operation of machines for making stones for use in filtering paper, and also to the construction of such stones.

This invention is illustrated in the accompanying drawings, in which- Figure 1 represents a side view, partly in section, of the machine. Fig. 2 is a plan or top view. Fig. 3 is a cross-section on the line as m, Fig. 1. Fig. 4 shows the stone.

Similar letters indicate corresponding parts.

The letter A designates a table or frame supportinga bed-plate, B, upon which rests a mold, O. The bed-plate B is provided with a series of upwardly-projecting pins or formers, 6, preferably of tapering form, and in the bottom of the mold G are a series of holes, corresponding in number, size, and location to these pins or formers, so that the latter may pass through the bottom of the mold.

The sides 0 O of the mold O are both hinged to one of its ends, as at ff, while they are provided with latches g, for engaging with stops h, attached to the opposite end thereof, and under normal conditions the sides of the mold are locked in their positions by means of these latches.

The mold C rests on a lifting-plate, H, in which, like in the bottom of the mold, are holes for the passage of the pins or formers c. and to which are attached the upper ends of slide-rods I. The slide-rods I- are guided .in the top of the table or frameA, and are connected at their lower ends by a cross-head, J, which is subjected to the action of a lifting-screw, K. This screw K works in a traverse, A, on the lower part of the table A, and it acts on a central part of the cross-head J both to raise and lower the same.

In applying the machine to use the mold O Patented in Germany February 13, 1872.

is moved to a lower position, and is filled with a plastic. composition, while, when the latter has set or hardened, the mold is lifted to such a height as to clear the pins or formers e. The sides 0 O of the mold are then set free, and are swung outward on their hingejoints f f, when the stone or block cast in the mold may be readily removed. By the action of the pins or formers c the stone, cast as stated, is provided with vertical holes or passages I, Fig. 4, and when a layer of paper or paper-pulp is placed on the stone to be filtered or strained, as in bleaching, the water escapes through these holes.

The bottom ofthe mold O is curved or arched in such a manner that the stone cast therein obtains a concave under surface, as at N, the

upper surface thereof being substantially flat or horizontal; and this feature of the stone forms an important part of my invention, the advantage thereby gained being that the water is permitted to escape from the holes Z without difficulty when the stone is placed on a plain or solid surface.

It should be remarked that another form of locking devices may be substituted for the latches g, or the sides of the mold C may be fixed, inasmuch as the mold can be taken from the lifting-plate H and reversed for the removal of the stone. Also, that another form of lifting mechanism may be used in lieu of that shown and described.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination of a bed-plate having a series of upwardly-projecting pins or formers, a mold having holes in the bottom thereof for the passage of the pins or formers, and a lifting mechanism, the whole constructed and adapted to operate substantially as described.

2. The combination of a bed-plate having a series of u ciwardly-projecting pins or formers, a mold having holes in the bottom thereof for the passage of the pins or formers, and having hinged sides, devices for locking the sides of the mold, and a lifting mechanism, the whole constructed and adapted to operate substantially as described.

3. The combination, with the moldO, the

bed-plate B, and its pins or formers, of the face, substantially as and for the purpose de- 10 lifting-plate H, the sliderods I, attached to scribed. the lifting-plate at their upper ends, the cross- In testimony that I claim the foregoing I head connecting the slide-rods at their lower have hereunto set my hand and seal this 10th 5 ends, and the lifting-screw K, the whole adaptday of April, 1880.

ed to operate substantially as described. BONIFAOIUS KLARY. [L. s.]

4. As a new article of manufacture, a filter- Witnesses: ing-stone having a series of vertical holes or R. M. J ACKSON, passages combined with a concave under sur- S. E. POTTER.

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