US564715A - Bernhard remmers - Google Patents

Description

(No Model.) 2 Sheets-Sheet; 1.

B. REMMERS.

FILTER PRESS.

No. 564,715. Patented July 28, 1896.

Fig. 1.

Fig. 2. Fig. 3.

Z, V 4 E SIZES wnwassas: INVENTOR aww ATTORNEYAA- (No Model.) 2 Sheets-Sheet; 2.

B. REMMBRS.

FILTER PRESS.

No. 564,715. Patented July 28, 1896 INVENTOR 0 ATTORNEYAJ" UNITED STATES" PATENT OFFICE.

BERNHARD REMMERS, OF BROOKLYN, N. Y.

F|LTER,-PRESS.'

SPECIFICATION forming part of Letters Patent No. 564,715, dated July 28, 1896.

Application filed February 11, 1895. Serial No. 537,906. (No model.)

To all whmn it nuty concern:

Be it known that I, BERNHARD REMMERS, a citizen of the United States, and aresident of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Filter-Presses, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof, in which similar letters and numerals of reference indicate corresponding parts in all the figures.

The object of my invention is to provide a more simple and effectual method and apparatus than are now employed for feeding the filtering liquids into the press, and also for carrying out the process of lixiviation as now conducted in apparatus of a similar character; and the invention consists of the construction and combination of parts which I will now describe, with the aid of the accompanying drawings, forming part of this specification, in which Figure 1 is a top plan view of a filteringpress provided with my improvement, showing the arrangement of the new feeding appliances with certain parts broken away to show the openings between the plates with which the feed-nozzles communicate. Fig. 2 is a front end view of the press in the .direction of the arrow in Fig. 1,'showing,the rods from which the feed-nozzles and pipe are suspended at the top of the machine and also the arrangement of the valves and pipes for closed delivery and lixiviation. Fig. 3 is a side view of the press, the rear end being left off. Fig. i is a view of the top of two filtering-plates, one of which is provided with its cloth and also with the recesses with which the feed-nozzles communicate and the other with the filtering-cloth removed. Fig. 5 is a section on the line A B of Fig. 6, showing the plates with their filtering-cloths and one of the feed-nozzles in position. Fig. 6 represents one of the filtering-plates with its cloth turned up to show the corrugated surface of the plate. Fig. 7 is an end view of one of the feed-nozzles. Fig.8 is a side View of two of said nozzles, one of which is insection, showing the manner of uniting these nozzles so as to form a pipe through which the filtering fluid passes and from which itis discharged into the press. Fig.0 is a seea transverse vertical section of the pipes and valves as arranged for closed delivery and for lixiviation.

Referring to the drawings, it will be seen that the framework of the press consists of the front, fixed head 2, the rear end 3, and the side bars 4, together with the top rods 5, three of which are arranged in proximity, as

tion on the line E F of Fig. 7, and Fig. 10 is shown, and from two of which the feed-noz- "1 zles are suspended, as hereinafter described, and the lower side rods 6, which form a support forthe closed delivery and lixiviation pipes and attachments shown in Fig. 10.

Suspended from the side bars 4 isthemovable head or follower 7, provided with side hooks 8, and this head or follower is operated by a screw passing through the end piece 3.

The filtering-plates 10 are. provided with side hooks 11, (see Fig. 6,) by means of which "j;

they are suspended from the side bars 4. They consist of a rectangular frame 12, (see Figs. 4 and 5,) having a central body portion 13, provided with vertical corrugations or grooves, as shown in Figs. 4 and 6, and when in operation their contiguous surfaces are covered with a filtering-cloth 14: in the usual manner. At the bottom of each of these plates,

in the lower side frame, is a channel 15, (see Figs. 5 and 6,) which is designed to carry oif the filtered liquid, and a series of ports or openings 16 in the bottom of the frame (see Fig. 6) form a communication between this channel and the filtering-spaces between the plates. The top frames of these plates, or,

filtering-chambers in the'press, besides the end nozzles.

Each nozzle is provided with a hook 19, by i which it is suspended from one of the rods 5, and a central tube 20, with which communicates the oval-shaped discharge-pipe 21,which communicates with the similarly-shaped opening 17 between the frames 10, when the parts are in operative position, The manner in which these nozzles are united to form a pipe is clearly shown in Fig. 8, the enlarged end of the tube on one being slipped over the reduced end of the tube on the adjacent side of the other, and each being preferably provided with a screw-nut 12 and a rubber or other ring packing 23, so that when the plates with their cloths are together, the nozzles having been put in proper position, and the screwnuts 22 properly adjusted, a perfectly tight joint is formed throughout the length of the feed-channel. r

The means for discharging the filtrate consists of a discharge-cock 24, which is provided with a three-way valve, and one of which I place on the opposite corner of every alternate plate, is shown in Figs. 1 and 2, and each of which communicates with one of the channels 15 in the filter-plates. These dischargecocks are provided with a discharge-pipe 25, which is all that is necessary if the filtrate is to be discharged into the gutter. If, however, closed delivery or lixivation is required, I connect with each of these efflux-pipes, by any suitable means, a pipe, as 26, which communicates with each of said effluX-cocks by means of a slip or expansion joint or coupling, as shown in Fig. 10. One end of these pipes 26, one of which is placed on each side of the press, is closed, and the other connected with another pipe (not shown) which supplies the liquid for lixiviation to the press. The slip or expansion joint between the cook 24 and the pipe 26 is provided with a rubber washer 27, also a shoulder or washer 2S and a set-nut 29, and between the set-nut 29 and thewasher 28 is placed one arm of the bracket or clamp 30, the object of which is to make a tight joint between the pipe 26 and the slipjoint by clamping the rubber washer closely to the pipe, which is accomplished by means of a set-screw 31. The pipe 26 is also provided, near each end, with a projecting hook 32', by which it is suspended from the lower side rod 6.

Referring again to Fig. 1, the part indicated by the numeral 33 would seem to be one of the filtering-plates. As a matter of fact, however, it is a part of the head 2, and is so formed on its inner side as to constitute a part of the first filtering-chamber, and is cut away on its upper side, so as to form a part of one of the openings 17.

The press is made ready for operation, preferably, in the following manner: The nozzles 18 are first preferably suspended from the two side rods 5 5 in the proper manner, the nozzles being arranged alternately on the rods, as shown in Fig. 1. They may be then thrown or swung back till their lower ends rest on the center rod 5. All the plates are placed on their supports 4 and pushed back toward the end 3, the follower 7 having first been moved back to permit of this arrangement. Then put a single or half cloth on the front head, swing down the first nozzle to its proper position, where the dischargepipe thereof will enter the opening 17 in the plate. plate and push it against the first, when the first nozzle will be in its proper position.

Then turn down the second nozzle, and, hav

ing hung a double or long cloth over the next plate, push it forward, as in the first instance, and turn down another nozzle and so on until all the plates have been placed in position. Then press the follower 7 forward as far as possible by means of the screw 9 and hand wheel attached thereto. After the head has been firmly set start .at the first nozzle and turn the nut 22 thereon to make the joint tight and proceed with each nozzle, treating the nuts thereon in the same manner, after which the filtrate or filtering fluid may be turned on. This fluid passes into the feedchannels formed by the nozzles through Then put a double cloth on the next pipes 34:, Fig. 1, and the fio-w thereof is rendered constant by means of gravity-pressure, pumps, or otherwise.

It will be seen on reference to Fig. 6 that the discharge-channel 15 in the bottom thereof is open at both ends. In the ordinary operation of the press one end of this channel is closed, in any desired manner, and a discharge or effiuX cock applied to the other, and these cocks are applied to the plates alternately on opposite sides of the press, as hereinbefore described. ever, that a discharge-cock may be applied to each side of the plate, if required.

The tightening of the nuts on the feed-nozzles need not be accomplished every time the press is emptied, but only when it becomes necessary by reason of leaks in the feedchannel formed by the nozzles, and it will be observed that in this arrangement there are It is evident, howno holes in the cloths caused by the feedits own discharge-pipe, and this may be of advantage in the process of lixiviation when it may not be desired to pass the lixiviating fluid through all the filtering-chambers.

As hereinbefore stated, the pipe 26 and slip-joint by which it communicates with the effluX-cock 28 are only necessary when closed delivery is required or process of lixiviation carried out. In the latter process one end of each of said pipes is closed and the other placed in communication with a pipe or source of supply (not shown) through which the lixiviating fluid is supplied to the press under pressure in the usual manner, and it is evident that either or both of said pipes 26 may be used for this purpose, or either or all of the filtering-chambers, and also that first one side pipe 26 and then the other, and the filtering-chambers with which each is connected, may be used alternately. These pipes 26 may also be used for blowing air or steam through the cakes found in the filtering chambers for the purpose of drying, or the air may also be used for lixiviation, and I have under control and am able to test at any time the flow from any one plate by simply turning the valve of the effiuX-cock from closed to open delivery. I can then see if the liquid is clear, or when lixiviating, if such is finished in any plate or chamber, so that I can turn the same off in case the fluid is running turbid or the lixiviation is completed. 7

Among the many advantages of my invention are the independent feed-channels and their form of construction and manner of communication with the filtering plates or chambers,the separate or independent closed delivery channel or channels, and the separate or independent lixiviating channel or channels and the method of connecting them with the press and the operation thereof.

It is evident that many departures from and modifications of the construction herein shown and described might be made without departing from the scope of my invention, and I do not limit myself to the exact form herein set out; but,

' Having fully described my invention, its construction and operation, I claim, and desire to secure by Letters Patent,the following:

1. In a filtering-press, a series of filteringplates each of said plates comprising a rectangular frame, a central body portion provided with corrugations or grooves adapted to be covered with filtering-cloths, the bottom of said plate being provided with ports 16 leading into an outlet-channel 15 and the sides of the top of the frame being cut away to form inlet-openings 17, substantially as described.

2. In a filtering-press, the combination of a front head, a rear end, the side bars connecting the head and end, the top rods 5, thereof which top rods are arranged close together, the follower, a screw passing through the end and operating the follower, a series of filtering-frames arranged between the head and end, and a feed-channel consisting of a number of nozzles 18, each of said nozzles being provided with a hook by which it is suspended from one of the top rods,substantially as described.

3. In afiltering-press, the combination of a frame, a series of filtering-plates supported thereon and provided with inlet-openings 17 and feed-pipes communicating with said inlet-openings and comprising a series of nozzles fitted together, each of said nozzles consisting of a hook by which it is supported in place, a central tube 20 arranged incommunication with an oval-shaped discharge-pipe 21, the small end of one nozzle being fitted in the larger end of the adjacent nozzle, apacking-ring23 and an adjusting-nut 22, substantially as and for the purpose described.

4. In a filtering-press, the combination of a frame, a series of filtering-plates supported therein,and provided with ports 16 in the bottom thereof opening into discharge-channels 15, a discharge-cock on the opposite corner of each alternate plate communicating with the channel therein; said discharge-cock com prising a three-way valve and a dischargepipe 25, a pipe 26 connected therewith by an expansion joint, said joint comprising a washer 27,a shoulder 28,a set-nut 29,a bracket 30 having one arm arranged between the setnut and washer, and a set-screw 31, substantially as described.

5. Ina filtering-press, the combination of a frame, the rods 5 arranged thereon, and a feed-pipe comprising a number of nozzles adapted to be connected together, each of said nozzles being provided with a hook 19 engaging one of the rods 5 to support said nozzle in place, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses,'this 9th day of February, 1895.

BERNHARD REMMERS.

Witnesses:

PERCY T. GRIFFITH, L. M. MULLER.

Images