US299790A

US299790A - Flour-bolt

Info

Publication number: US299790A
Authority: US
Publication date: 1884-06-03
Anticipated expiration: 1901-06-03

Description

NW. HoLT.

PLOUR BOLT. V

'.PatentedJune 3, 1884.

(No'Model.)

UNITED STATES PATENT///Fnrcn/ NOAH WV. HOLT, OF BUFFALO, NEV YORK.

FLOUR-BOLT.'

SPECIFICATION forming part of Letters Patent No. 299,790, dated June 3, 1884.

' Application filed March 11, 1884. (No model.)

.To aZZ whom it may concer/1J.-

Be it known that I, NOAH W. IIoLT, of the city of Buffalo, in the county of Erie and State .of New York, have invented new and useful Improvements in Flour-Bolts, of which the following is a specification.

This invention relates to an improvement in that class of flour-bolts which consist of a revolving reel covered with bolting-fcloth, through which the material is bolted by the rotation of the reel. In this class of flourbolts the operation of bolting takes place principally while the material descends, and occurs, therefore, at intervals during the rotation of the reel, so that the latter performs no work during a considerable portion of the time.

The object of my invention is to increase the bolting capacity of this class of machines, and to cause the material to be bolted more uniformly and continuously, and to otherwise improve the construction of the machine.

My invention consists of the improvements which will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a longitudinal section of a bolting-reel provided with my improvements. Fig. 2 is a cross-section thereof. Fig. 3 is a cross-section in line x x, Fig. I.

Like letters of reference refer to like parts in the several figures.

A' represents the stationary frame of the machine, and A the inclosing casing or chest secured thereto.

I) represents the reelshaft, which is supported in bearings b b2, secured to the frame A.

C represents the head of the reel, arranged at its feed end, and D the head arranged at the discharge end,'the heads C and D being connected together by longitudinal ribs d. Ihe heads C and D are preferably octagonal in shape, as shown, and as many longitudinal ribs as there are sides in the heads G and D are employed, thus forming an eight-sided reel, though a reel having a less number of sides may be employed, if desired.

E represents the bolting-cloth, which is secured to 'removable frames e, which fill the spaces between the longitudinal ribs and the heads of the reel. The frames e are secured to the ribs d by screws or otherwise, so that they can be readily removed from the reel when desired. A suitable number of such frames are arranged side by side in each space between two longitudinal ribs and the head and tail of the reel. As shown in Fig. 1 of the drawings, each side of the reel is composed of three sections, f f f2. These sections are covered with bolting-cloth having different degreesv of iineness, the coarser cloth being preferably arranged on the section f 2 at the tail end of the Ireel. The size or number of mesh of the reel-covering can be regulated as required by the character of the material to be bolted by the removable sectional frames, in an obvious manner.

G represents a closed drum arranged within the bolting-reel, and secured to the shaft b by tight heads g g. The periphery of thedrum G has preferably as many sides as the reel, and its sides g2 are arranged at an angle to or not parallel with shown in Fig. 2. This relative ,arrangement of the sides of the drum to the sides of the reel causes the material sliding from the sides of the drum to impinge against the boltingcloth at a higher point than it would otherwise, and also assists in elevating the material on the ascending side of the reel.

h are braces or rods which connect the drum G with the bolting-reel, and whereby the latter is caused to revolve with the drum.A The rods 7L extend from the sides g2 of the drum, and are secured to the longitudinal ribs d of the reel, and form braces for the latter.

the sides of the reel, as clearly i are longitudinal ribs or buckets projecting from the sides g2 of the drum.

7a represents the feed-spout-whereby thematerial to be bolted is introduced into the machine, and 7s is a cylinder or tube which surrounds the shaft b, and which receives the material from the feed-spout 7c. The tube 7c is firmly secured to the inclosing-case A of the machine at one end, and its opposite end extends into the reel through a central opening formed in the reel head C. y Z is a screw-conveyer secured to the shaft b within the tube 7c in such manner as to propel the material from the tube into the bolting-reel.

Z/ is a similar conveyer secured to the shaft b at the tail end ofthe machine, and surrounded IOO by a tube or cylinder, m, secured to the easing of the machine. The inner end of the tube m extends through a central opening formed in the head D of the reel, and abuts against the outer side of the head g of the drum G.

N are radial ribs secured to the inner side of the head D, between the latter and the outer side of the head y of the drum, and extending from the tube m to the longitudinal ribs of the reel. rlhe material which reaches the inner side of the head D is lifted by the ribs N and delivered through the opening a into the tube m, from which it is discharged by means of the screw-conveycr Z into the spout o. The material which is fed through the eonveyer Z falls into the space between the head g of the drum and the reel-head C onto the bottom of the reel. As the rcel rotates the material is gradually elevated on the ascending side of the reel until the inclination of that portion ot' the reel on which the material rests becomes so steep that the material descends over the inclined bolting-surface, whereby the fine material is separated from the coarse parts. As the material accumulates on the ascending side of the rcel, part of it is carried by the buckets z' and the drum G. to the opposite or descending side of the reel, where the material escapes from the buckets and descends over the inclined bolting-surface. In this manner a portion of the material is bolted on the descending side of the reel. As the space between the drum G and the bolting-recl is coinparativelysinall, the material is retained near the bolting-surface at all times, thereby increasing the efficiency of the boltingsurface.

l? is a screw-eonveyer arranged in the bottom of the chest or trough which receives the bolted material, and which may be provided with a suitable number of openings controlled by slides p, through which different portions of the material may be drawn off at desire.

I claim as my inventionl. The combination, with a bolting-reel, of a drum, G, secured within the reel, to revolve at the same speed and in the saine direction with the reel, and having its sides g2 arranged at an angle to the sides of the reel, substantially as set forth.

2. rlhe combination, with a bolting-reel, of a drum, G, having tight heads r/ y', and secured within the reel, to rotate in the saine direction and with the saine speed as the reel, and longitudinal ribs or buckets 1, secured to said drum and projecting toward the inner surface of the reel, whereby some ofthe material is elevated and carried from the ascending` side to the descending side of the reel, substantially as set forth.

3. rlhe combination, with the shaft b, of the reel-heads C D, longitudinal ribs d, secured to said heads, drum G, provided with tight heads g g', and secured to the shaft, and braces 7L, eonnecti ng the ribs d with said drum, substantially as set forth.

NOAH W. HOLT.

lVitnesses:

Jeux J. DONNER, F. L. BROWNE.