US265104A - Alexander c - Google Patents

Description

(No Model.)

A. C. LANDRY.

FILTER PRESS.

Patented Sept. 26, 1882.

FIG. 2.

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WITNESSES ATTORNEYS.

' UNITED f STATES PATENT OFFICE.

HIMSELF AND CHARLES LAUGA, OF SAME PLACE.

FILTER-PRESS.

SPECIFICATION forming part of Letters Patent N0. 265,104, dated September 26, 1882. i

l applicati@ fned July 11, ieee. (No modem To all whom it may concern:

Be it known that I, ALEXANDER C. LAN- DRY, of New Orleans, in the parish of Orleans and State of Louisiana, have invented a new and Improved Filter-Press; and I do hereby declare that the following is a full, clear, and

exact description of the same, reference being 1 had to the accompanying drawings, forming part of this specitication, in which- Figure l is a vertical section, Fig. 2 a plan view, Fig. 3 an end view, Fig. 4 an enlarged side view, and Fig.` 5 a cross-section, of one of the filter-frames; Fig. 6, an enlarged detail of the thimble, showing its connection with the perforated plates. Fig. 7 is a detail of the sleeve of cloth passing through the thimble and connecting with the cloths on opposite sides. l My invention relates to a novel constructie of filter-presses, designed more particularly for separating the sirup or juice from the solid residuum in the manufacture of glucose and grape-sugar, but applicable also for other purposes, such as oilrening, Src. 1t is an im:

i provement upon that form of filter-press 1n l which a set of separable rectangular frames more fully described with reference tothe drawings, in Which- A represents rectangular frames, which are provided with supporting-lugs a a, that rest above side rails, B,an`d which frames are made of equal size and arranged in series, and are forced into close marginal contact with each otherbyscrew-rodC,soastoibrmtightjointsbetween, that cons'titntea practically-closed case. Each of these frames has a partition orweb portion in the middle, formed of two perforated plates,b b, whose outer edges arelet into or fastened to the rectangular fra-mes, which are preferably made of cypress wood, and which plates are held in place by beveled strips b. In the middlethe perforated plates have a thimble, c, withcollars or anges c o at each end, against which the perforated plates b b rest, and which resist the inward pressure on said perforated plate, and also give a passage-way for the mash to pass from one side of the partition to the other. Between the perforated plates b b and around thc thimble c is packed the filtering, decolorizin g, and neutralizing composition, or any other liltering medium, the said filtering medium being introduced through the opening e at the top of each frame.- rlhe dished faces of each frame form, when juxtaposed, chambers f, into which chambers and through which thimblesc the thick liquor or mash passes, under pressure, from the inlet-pipe d. Before fitting these frames A together filter-cloths g are placed over the perforated plates b, and have a tubular sleeve, g,of the same material, passing through the thimbles. The margins ofthese filter-cloths are allowed to project beyondthe edges of the filtering-frames, as shown in Fig. 5, so as to form a packing or gasket for the joint, as well as hold the said cloths in position. At thebottom of each frame there is also a false bottom, formed of slats j, above which is placed a filtering-cloth, lc, to prevent the filtering composition from dropping down into the same, and from these false bottoms there emerges a drain-pipe, h, draining into a subjacent pan, on. Now, it will be seen the thick liquor or crude mash, comingV in at the pipe d under pressure, distributes itself through the whole apparatus, depositing the heavy residuum in the chambersf, formed by the dished faces of the frame, while the pure juices pass through the cloths and the perforated plates b, and, traversing the :filtering composition, accumulate in the false bottom below, and are carried off by the drain-pipes. Whenthe heavy residuum in chambersfis to be removed the pressure of rod C is relaxed,

and the frame A can then be separated and The above specification of my invention the solid matters dumped out and utilized for signed by me in the presence of two subscribezittlei'eed, fertilizers, or for other purpose. ing witnesses,

Having thus described my invention7 what I Y 5 cla-im as new is- A. C. LANDRY.

The filter-frames A, having filling-openings e, in combination with the perforated plates Witnesses: b, the beveled strips b', the thiinble 0, and the EDWD. W. BYRN, false bottom k, with outlet-pipe, as shown Iand SOLON C. KEMON. 1o described.

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