US338553A

US338553A - Bebnhabd h

Info

Publication number: US338553A
Authority: US
Publication date: 1886-03-23
Anticipated expiration: 1903-03-23

Description

(No Model.)

B. H. REMMERS & J. WILLIAMSON.

FILTER PRESS.

No. 338,553. Patented Mar. 23, 1886.

Fga.

NITED STATES PATENT OFFIcEe BERNHARD H. REMMERS AND JOHN WILLIAMSON, OF GLASGOYV, COUNTY OF LANARK, SCOTLAND.

FILTER-PRESS.

$FECIPICATION forming part of Letters Patent No. 338,553, dated March 23, 1886.

Application filed January 27, 1886. Serial No. 189,965. (No model.) Patented in England September-7, 1885, No.10,570.

To all whom it may concern.-

Be it known that we, BERNHARD HEINRIOH REMMERS and JOHN XVILLIAMsoN, citizens of theUnited Kingdom of Great Britain and Ireland, residing at Glasgow, in the cou nty of Lanark, Scotland, have invented new and useful Improvements in Filter-Presses; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the manufacture or art to which it relates to make and use the same.

The object of our invention is so to improve the construction of filter-presses that we may efl'ect more complete liXiviation of the cakes or sludge formed between the plates in filtering sugar-liquors or other substances through filter-presses. To that end we form upon each plate of the filterpress, at or near the lower side, aprojecting snug or piece, through which we bore two holes in such position that when the plates are fitted together in the press these holes form two continuous but separate longitudinal water-ways or channels.

In each of the alternate plates of the press 6 g, numbers 1 3 5 '7, &c.. we form a passage or port to connect the filter-space of the plate with one of the longitudinal water-ways, and in each of the other series of alternate plates 6 g, numbers 2 4t 6 S, &c.,wein a similar manner form passages or ports connecting the filterspaces of these plates with the second longitudinal water way. The two longitudinal channels terminate in the front plate of the 3 5 pressin two vertical passages or pi pes,to which cocks or valves are fitted, and they discharge at the level of the upper sides of the plates or top of the press. By this arrangement the wash-water which is forced into the one longitudinal channel passes through the passagesor ports into the filter-spaces of the one series of alternate plates, fills such spaces, passes through the cakes or sludge and escapes by the passages or ports in the adjoining series of 5 plates to the other longitudinal channel. The heavy sweet water orliquor,which tends tolie at the bottom or lower edges of the plates,and in the outlet-channel, is carried forward and forced up the discharge pipe and outlet in front of the lighter clear water which follows the first washing of the cakes. The orifices or channels which are provided forlixiviating under the existing arrangement at the top corners ofthe plates are utilized for permitting the discharge of air.

In the drawings, Figures 1 and 2 are elevations of two adjoining plates of the improved filter-press. Fig. 3 is an elevation of the front plate of the press, and Fig. 4 is a longitudinal section of part of the press, the section being taken through the middle oftwo of the plates, and, as at the line X X in Fig. 3, through the front plate and the two adjoining plates of the press.

The general form or construction of the press and of the plates may be of any of the usual types in common use, but differing therefrom as regards provision for lubricating, for which purpose there is formed upon each plate A A A, &C., of the press a snug or projection, a a o 850., through which two holes are bored to form, when the plates are in position in the press,twolongitudinal water ways or channels, I) c, terminating at the front plate, A, in two channels, I) c, or in pipes outside thereof extending to the upper side or top of said plate.

In each of the alternate plates A A &c., a port, (Z, is formed, communicating with the filterspace on each side of theplate and the upper longitudinal channel, I), and in each of the alternate plates A A*, &c., a similarport, e, is formed, communicating between the filterspaces on each side and the lower channel, 0. Pipes provided with stop-cocks or valves are connected to the Vertical channels I) c,and the water forliXiviation is admitted through either of these channels, while the other channel serves for the outlet of the sweet water, the lixiviation being conducted, by preference, by using the channels b b and 0 0 alternately for the admission of the wash-water, the water entering the channel b I) passing through the series of ports (1 in the plates A A 810., into the filter-spaces through the cakes or sludge formed therein and displaces the air, which is driven off through the portsf and the channels 9 at the top of the plates, and after passing through the cakes or sludge the wash-water passes out by the ports 0 in the plates A A, &c., to the channels 0 c,which for the time being, form the outlet. By forming the lixiviating-channels b c and the communicating ports d e at the lower side's or bottoms of the plates and connecting them to the vertical channels I) c, as above described, the heavy sweet water,which tends to lie at the bottom and is 'not carried off by the wash-water in the ordinary arrangements for lixiviating, is carried forward and forced up the discharge-pipe in advance of the clear water.

In the snugs aa, 850., on the filter-plates recesses are formed, whereinto blocks of cork, rubber, or similar elastic material are fitted to project slightly above'thefaces of the plates, so that when the plates are pressed together 'water-tightj oints are formed between the su ugs' 1. In a filter-press, the improved construction of the filter-plates with snugs or projeco tions having lixiviating channels I) a formed therein, and ports dc, communicating between the filter-spaces and alternately with the upper and lower channel throughout the series of plates, vertical inlet and outlet channels or 3 5 pipes reaching to the top of the press being provided, substantially as and forthe purpose set forth.

2. In a filter-press having lixiviating-channels formed in snugs 0r projections on the 111- 40 ter-plates, forming recesses in said snugs and A fitting therein blocks of cork, rubber, or similar elastic material, as and for the purpose set forth. t In witness whereof we have hereunto set our 5 hands and seals this 14th day of January, 1886.

B. H. REMMERS. L, s.] JOHN WILLIAMSON. [L. s.]

W itnesses it tel/1% GEO. M. ERUeKsHANK, \VALILAOE FAIRWEATHER, Fcls. Inst. 1 A., both of 135 Buchanan Street,

Glasgow.