US1197548A - Flour-bolting reel. - Google Patents

Description

M. E. ROZELLE.

FLOUR BOLTING REEL.

APPLICATION FILED FEB. 24, 19M. RENEWED JULY 3|, 191 6. 1,197,548.

Patented Sept. 5, .1916.

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FLOUR BOLTING REEL. :APPumoN men FEB. 24, m4. RENEW ED.JULY s1. 1'916.

Patented Sept. 5, 1915.

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MARION EUGENE ROZELLE, OF CI'IAMBERSBURG, PENNSYLVANIA.

FLOUR-BOLTING REEL.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed. February 24, 1914, Serial No. 820,507. Renewed July 31, 1916. Serial No. 112,479.

To all whom it may concern:

Be it known that I, MARION E. RoznLLn, a citizen of the United States, residing in the city of Chambersburg, in the county of Franklin and State of Pennsylvania, have invented certain new and useful Improvements in Flour-Bolting Reels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to milling machinery, and has for its object the provision of a combined bolting reel and middlings mill having the characteristic features hereinafter described.

The present machine is especially designed to receive the stock coming from the rolls of a flour mill, and to further bolt and reduce the same. By using-the machine in combi' nation with the rolls of a roller mill, the number of reductions can be increased, since the stock is further reduced and bolted each time it passes through one of the machines. In a roller mill, in which two reductions are ordinarily obtained, two more reductions can be made by using the present improved bolter and middlings mill to receive the stock coming from each set of rolls.

The middlings mill, which is combined with the bolting reel, is preferably of the same general character as that disclosed in my prior Patent, No. 1,Q78,517,iissued November 11, 1913, and is preferably located directly in the head of the reel to render the construction compact and otherwise advantageous, as will hereinafter be seen.

The invention is illustrated in the accompanying drawings, in which Figure 1 is an elevation, partly in section, of the improved bolting reel having a mid dlings mill located in'its head; Fig. 2 is an elevation, partly in section, of a combined bolting reel and middlings mill, such as shown in Fig. 1, having an additional bolting reel associatedtherewith to bolt out the finer material and conveying the coarser material directly to the combined bolter and middlings mill; Fig. 3 is a broken detail view showing a modified form of mill located in the head of the bolting reel; and Fig. 4: is an end elevation of the machine showing the mode of driving the operating parts thereof.

Referring to the drawings, the 'casingor housing of the machine is indicated at A, and may be of any suitable shape or design adapted for the purpose. Rotatably mounted in the casing A, is a bolting reel, denoted generally by the reference character B. The said reel is provided with cylindrical inlet and outlet portions 1 and 2, respectively, constituting trunnions journaled in the bearings 3 and 4E. The bolting reel B may be covered with any appropriate material suitable for bolting the stock, such as silk or the like, indicated at 5.

Mounted in the bolting reel 13 and arranged co-axially therewith, is a hollow shaft 6 mounted for rotation independently of the reel B, such as by journaling the same in a suitable bearing 7 associated with a stationary part of the construction. The shaft 6 carries a conveyor 8 disposed within the hollow trunnion 1 and serves to feed material introduced at the inlet into the bolting reel. A similar conveyer 9, mounted upon the shaft 6 and disposed within the hollow trunnion 2, serves to convey the material from the bolting reel and discharge the same through the outlet 10.

In order to increase the efliciency of the bolter, a fan 11 is provided mounted in the head of the reel and carried by the shaft 6. The head of the reel is inclosed in a casing 12 having suitable valvesv 13 to admit air thereto, and a counter-weighted closure 1%, which automatically releases any flour dust which is drawn into the casing 12 by the fan. The rotation of the fan 11 maintains a circulation of air by drawing the same from the casing A into the casing 12 through valves 13, and then forces the air through the bolting reel back into the casing A. The air, during this circulation, forces the finer particles of the stock through the bolting cloth and into the casing A. The finer material so bolted drops to the bottom of the casing A, where it is conducted away by suitable conveyers, actuated in any appropriate manner, such as by thesprockets 15.

To aid the air current created by the fan 11 in forcing thematerial through the bolting cloth, air distributing blades 16 are provided, carried by the shaft 6, and spirally shaped, as shown in the drawing, to distribute the air over the surface of the bolting cloth, thereby increasing the efficiency of the bolting reel.

The shaft 6, and the parts which it carries, may be rotated in the same direction as the bolting reel B, and at a greater speed than the reel or said shaft may be rotated 1n an opposite direction to the reel by any sultable driving means. In the present instance,

the shaft 6 is rotated at its left-hand extremity (Fig. l) by any appropriate means, and the right-hand extremity is provided with a pinion 17. Motion is transmitted from the shaft 6 to the reel preferably by means of a counter-shaft 18 carrying a gear 19 meshing with the pinion 17, and also carrying a pinion 20 meshing with the gear 21, carried by the hollow trunnion 2 of the bolting reel. By this means, the bolting reel and the shaft 6, carrying the fan 11 and distributer blades 16, are driven at differential speeds. Asabove stated, a middlings mill is located in the head of the reel, which, in the present instance, is represented by a ring 22 adapted to rotate with the hollow trunnion l and reel B. A resistance plate or disk 23 cooperates with the ring 22 and is mounted on the shaft 6 by means of a sleeve 24, which is free to slide longitudinally on said shaft. A pin 25 passes diametrically through the sleeve 24 and through diametrically opposite slots 26 formed in the hollow shaft 6. The pin 25 is engaged by the extremity of a rod 27 mounted within the hollow shaft 6 and extending to the rear of the machine, where it is acted upon by a weight 28 pivotally mounted at 29, which tends to yieldingly hold the rod 27, and, therefore, the disk 23 in its extreme left-hand position with re spect to Fig. 1. A suitable thrust bearing 30 is interposed between the extremity of the rod 27 and the lever 31,which carries the weight 28.

From the foregoing construction, it will be seen that the rod 27 has a free limited movement within the hollow shaft 6, and that the disk 23 is yieldingly held in operative relation with the ring 22. The conveyer 8 which serves to feed the material to the reel also places the stock under high pressure by forcing it against the disk 23, which yieldingly retards the escape of the stock. As the stock crushed by its subjection to this high pressure immerges between the ring and the disk, it is thoroughly loosened up and placed in the best possible condition for bolting.

Fig. 3 illustrates a modified form of the middlings mill, the resistance disk 23 being carried by the reel B. The said disk 23 is yieldingly held against the incoming material preferably by means of springs 32, reacting at one end against the reel B, and at the other end against suitable shoulders 33 provided on pins 34:, with which the springs are co-axially placed and which carry the disk 28. The stock introduced tothe machine is forced by the conveyer 8 against the disk 23, and, therefore, placed under high pressure, after which it passes radially between the head of the reel B and said disk into the bolting reel.

In Fig. 2, a combined middlings mill and bolting reel is illustrated similar to that hereinbefore described, but having associated therewith, a second bolting reel indicated generally by C. The two reels B and C are connected by a hollow trunnion 1 through which the material passes from the reel C to the reel B, after being subjected to a bolting action in the former. The bolting reel C may be identical with that shown in Fig. 1, except that the middlings mill is omitted from its head, and the parts at the rear thereof dispensed with in order that the same may be directly connected with the combined bolting reel and middlings mill, as clearly .shown in Fig. 2. This unit has been especially designed for use in a flour mill, in which several reductions are made on smooth rollers, and in which a bolting reel is employed to bolt the material coming from each set of rollers. By substituting the units shown in Fig. 2, for the bolting reels of such a flour mill, it is obvious that more reductions may be obtained, since the material coming from each set of rolls would then be subject to the action of the middlings mill in the head of the bolting reel B. The stock coming from the smooth rolls would be introduced at D and conveyed into the bolting reel C, where the finer particles would be forced through the bolting cloth into the lower part of the casing, and the coarser particles conveyed through the hollow trunnion 1 to the bolting reel B, being subjected on its way to the action of the middlings mill 2223. After the stock is further reduced by the middlings mill, it is again bolted in the reel B and may be discharged through the outlet 10. It will be seen, therefore, that the unit disclosed in Fig. 2 is adapted to receive the unbolted material after it has been ground by any suitable means, bolt the same, add another reduction and discharge the material in a bolted condition ready for further grinding, if such is necessary.

Obviously numerous modifications and changes can be made in the details of construction without departing from the spirit or scope of the invention, as defined in the accompanying claims.

What I claim is 1. In milling apparatus, the combination of a rotary bolting reel having a hollow feed trunnion, a conveyer operating in said trunnion, and a yielding resistance plate controlling the communication between the trunnion and bolting reel whereby the stock is placed under high pressure and disintegrated in being forced by the conveyer into the bolting reel.

2. In milling apparatus, the combination of a rotary bolting reel having a hollow feed trunnion, means operated in said trunnion for forcing the stock toward the bolting reel, and a yielding resistance plate controlling the communication between the trunnion and the bolting reel whereby the stock is placed under high pressure and disintegrated in being forced by the conveyer into the bolting reel.

3. In milling apparatus, the combination of a rotary bolting reel having a hollow feed trunnion, a yieldmg resistance plate interposed in the path of movement of the stock introduced to the reel through the trunnion, and a conveyer operating in said trunnion for forcing the stock into the reel and placing the same under high pressure.

4. Milling apparatus comprising a rotary bolting reel having an inlet opening, a yielding resistance plate controlling said opening, and means to force stock toward said plate and into the reel whereby the stock is placed under high pressure before delivery to the reel and loosened up as it passes said resistance plate.

5. In milling apparatus, the combination of a rotary bolting reel having a hollow feed trunnion, a shaft rotatable independently of the bolting reel and coa-Xially disposed with respect thereto, said shaft having a feed conveyer coaxially disposed in said trunnion, a grinding ring rotatable with the reel and positioned at the point of communication between the trunnion and the reel, and a yieldin resistance plate rotated by said shaft an cooperating with said ring.

6. Milling apparatus comprising a bolting reel having a feed opening associated therewith, a yielding resistance plate interposed in the path of movement of the stock being fed to the reel, and single means for feeding stock to the reel and for forcing it through the middlings mill whereby the stock is placed under high pressure in advance of the resistance plate and loosened up as it is delivered to the reel.

7 In milling machinery, the combination of a main casing, a bolting reel mounted therein, a fan associated with the reel and located in said main casing to maintain a continuous circulation of air through the reel and then back through the casing to the fan, and a middlings mill disposed in the end of said reel.

8. In milling machinery, the combination of a main casing, a bolting reel rotatably mounted therein, a shaft coaxially disposed with respect to the reel and mounted to rotate at a different speed from said reel, a fan carried by said shaft to maintain a continuous circulation of air through the reel and then back through the casing to the fan, air distributing blades mounted on said shaft to distribute the air in the reel and facilitate bolting of the material, and a middlings mill forming a component part of the reel.

9. In milling machinery, the combination of a casing, a bolting reel ro-tatably mounted therein, an air chamber surrounding the end of said reel and in communication with the casing, a shaft coaxially disposed with respect to the reel and mounted for rotary movement independent of the reel, a fan carried by said shaft adapted to maintain a circulation of air through the reel, the casing and said chamber, and a middlings mill disposed in the end of said reel.

In testimony whereof I affix my signature, in presence of two witnesses.

MARION EUGENE ROZELLE.

Witnesses:

CLUMAKE, LEO A. DIEHL.

Copies of this patent may be obtained for dve cents each, by addressing the Commissioner of ratentl. Washington, D. C.

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