US134462A - Improvement m ivj - Google Patents

Description

, 2Sheets-Sheetl. E. CLARK.

Middlings Purifiers.

NO. 134,462. Patented Dec. 31, 1872.

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" AM. PHOTO'UTHOGRA F1110 611M O5B0fiNE.'S PROCESS) EDWIN CLARK, OF LANCASTER, PENNSYLVANIA.

IMPROVEMENT lhl idlBBLlNGSWURIFEERS.

Specification forming part of Letters Patent No. l3 q&$2 dated December 31, 1879.

To all whom it may concern Be it known that I, EDWIN CLARK, of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Flour and Middlings-Separator; and I do hereby declare that the following is a full, clear, and exact description thereof that will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawing and to the letters of reference marked thereon which form a part of this specification.

This invention relates to that class of machines known as, flour and middlings separators or dressers, and has for its object to furnish an improved machine for the purpose of separating bran from the flour or middlings,

' leaving the farina or middlings pure and in a proper condition for regrinding, and by this means restoring a large per cent. of the gluten to the starch portion of the wheat, being simple in construction, efficient in Opera tion, and durable in use; and it consistsin arrangement of the tines with the fan and air chambers.

In the drawing, Figure 1 is a top view with a part of the frame-work cut away,, showing the interior; Fig. 2 is a bottom View with the conveyor-box and attachments removgedi; Fig. 3 shows the end piece of the boltingcase; Fig. 4 is an end view of the machine; and Fig. 5 is a perspective view of the boltirame and knockers with the cloth removed,

A represents a frame or casdfor' the machine, which may be made in any suitable or desired form, so as to be conveniently adapted to the mechanism of the machine and convenience in construction. 13 represents the valves, each of which is hinged to the bottom of the air-chamber in which it is placed. Below each of said valves, and attached to the same, are

shafts (J suitably jcurnaled in the sides of the frame, one end of which extends outside of the frame, and provided with the knobs D, by which means the valves can be easily and readily adjusted to admit more or less air, as dcsired. The air-chamber is entirely above the bolt-cloth. E E represent partitions, extendin g upward and formingchambers for the purpose of allowing the flow of air to be shut 05 from either of the chambers through the medium of the valves and openings in the air-flees F G H leading to the fan-box. These chambers may be as many in number as desired. I I represent slides supported upon the frame A. I Said slides are provided with a slot and screw to regulate their position. To the slides .a red, at, is attached which extends downward,

and is secured to the frame by a pivot, by which means the ends of the frame are caused to be changed in the throw of the bolt to re,- ulate the discharge from the same. The top of said rods a should be threaded and provided with a thumb-screw so as to adjust the vertical position of the ends of the bolt-frame. J represents the fan-box, divided into two divisions by the partition as, having a case, K, on each side communicating with the air-fines L and M, said flucs extending along on the top of the machine and communicating with the air-chambers through the opcnin gs F, G, and H. Nrepresents a cloth, which may be of the usual material, and gradedor not, as desired. Below the cloth N the heaters P are arranged, being attached to the rock-shafts O in any suitable manner. These heaters 1? may be of wire, wood, or metal, or any other material, but should be arranged to have a beating meticn against the cloth N, which I prefer to obtain through the medium of the rock-shafts 0, link Q, springs T, and catch and cam R, the cam moving the link Q, in one direction, which is pivoted to the rock-shafts, and, being released by the catch from the cam, is drawn rapidly back by the action of the springs T, one end of which being attached to the frame and the other to the rock-shafts, by which means the required motion to the heaters is obtained. The boaters do not strike upon the frame G, but upon the cloth N; and, to pro ,cloth properly clear.

vent damage to the cloth by the heaters, the frame to which the heaters and their operating mechanism are connected has the same motion as the bolt-frame G, so that the beaters move with the same speed back and forth with the cloth N. These boaters should be as many as necessary in number to keeplthe The advantage gained in using the heaters instead of brushes is that the brushes create a constant friction upon the cloth and wear the same, and as the heaters strike the cloth and then at once fall from the same by their weight, the material gathered in the same is raised by the current of air passing through the cloth. U represents the end piece or conveying-spout, which is placed at the end of the bolt to catch the bran or coarse material passing over the end of the bolt, beneath which any receptacle may be placed to catch the same. This spout is formed widest at the top and gradually decreasing in size downward by the inclines b b, altogether forming the end piece of the machine. V represents a feed-slide gate, furnished with a slot and set-screw, so as to be adjusted as desired. WV represents an opening through which the material passes into the hopper, falling upon the roller W; by which it is carried to the bolt. X represents the conveyor, placed directly below the hopper Y in the usual manner. A represents the fan-shaft, suitably j ournaled in the frame. B represents a shaft having a pulley, E, by which motion is communicated to the machine. On the center of said shaft is a box, F, attached to the frame, in which is placed an eccentric on the shaft for the purpose of giving the vibrating motion to the bolt-frame. 0 represents a band or belt, giving motion to the feed-roll W. The feed-roll W is provided with a pulley, on one end from which the heaters are operated by means of the belt D. G, Fig. 5, represents the bolt-frame with the cloth removed. Said frame is made in rectangular form, as shown, and provided with transverse bars L, which are provided with thumb set-screws M which bear upon the longitudinal bars G, the object of which is to adjust the cloth by raising ordepres ing the bars G, to which the cloth is atta' ed, so that the material will be evenly distribhted upon the cloth. By this means either side of the cloth and the center may be adjusted as desired. H represents knockers passing through suitable guides N, and are provided with projections 0 c, which come in contact with the shaft 1, of the construction shown, by which means the knockers H H are raised as the shaft revolves until the flat portion of the shaft 1 passes the projections c 0, when the knockers fall by their own weight upon the bar L, thereby jarring the cloth for the purpose of keeping the cloth clear, so that the air may pass through it, and the purified material readily pass through the cloth down i I, l into the eouveyer. Motion is conveyed to the shaft 1 by a belt from a pulley on the end of the feed-roller to the pulley K upon the end of the shaft ,1.

The operation is as follows: The material is fed bfy'the: roller W upon the cloth ofthe.

bolt-frame having the reciprocating motion, by which means and the current of air the heavier part of the bran is carried along the cloth and discharged into the spout U, while the lighter-portion of the same is. drawn up by suction through the valves B and openings F, G, and H, into the divided fan-box, and discharged at 0, while the purified material passes through the cloth into the hopper Y and conveyer X, where it is collected, graded,

and discharged in the usual manner. The current of air passing up through the cloth, valves B, and openings F, G, and H, by suction into the fan-box is received. from openings on each side of the machine just below the bolt-frame, said current of air being evenly distributed upon the cloth as the valves B open entirely across the air-chambers, which produces a far better result than where the valves open only a short distance from either side pr the center, thus causing a" draft centered upon the single point corresponding to the length of the valves.

By use of the double fan, in connection with the air-fines L and M, the material drawn up through the openings G and H may be dis charged separately at O, and thus making separate grades of the material, which would not be thcpase where there was only one airflue upon one side of the machine with openin gs connecting with the several air-chambers and by the addition of an air-flue and fan to each a'ir chamber, the material passing up through the openings above each chamber could be discharged and collected separately.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The adjustable valves 13, hinged in the bottom of the air -,chambers and extending across said chamber, in combination with the bolt, substantially as and for the purpose set forth,

2. Th s adjustable valves B, hinged in the botton oflthe air-chamber, in combination with he bolt air-fines L M with openings F, Gr, and H, and fan, substantially as and for the purposes specified. 3. The combination of the fan-box J, divided into two or more divisions by a partition, as, each provided with a fan, with the separate air-dues L and M, substantially as and for the purpose lspecified.

4. The slides I and rods a supporting the bolt-frame, and arranged to be adjusted substantially as and for the purpose described.

5. The combination of the rock-shaft 0 carrying the heaters P with the bolt-frame and operating mechanism, as shown and described,

ESQ/B62 3 or its equivalent, so that the heaters move her L to adjust the bolt-cloth, substantially with the bolt and heat directly upon the cloth, as and for the purpose described. substantially as and for the purpose described. In testimony that I claim the foregoing l 6. The combination of the knockers H e, have hereunto set my hand this 9th day of guides N, shaft 1', and bar L, constructed November, 183?.

and arranged above the bolt-frame, as and for EDWIN CLARK. the purpose set forth. Witnesses:

7. The thumb-screws M, or their equim- JOHN A. ELLIS,

lents, arranged with the bolt-frame G Gr and WM. K. ELLIS.

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