US1560800A - Feeding and distributing apparatus for roller mills - Google Patents

Description

A. HOQBERECHT Original Filed ,Sept. 13. 1922 In D67ZZ07 7 3:7 .HZhv-Z JZoZcrecZZ FEEDING AND DISTRIBUTING APPARATUS FOR ROLLER MILLS N ov Nov. 10,1925- A. HOBERECHT FEEDING AND DISTRIBUTING APPARATUS FOR ROLLER HILLS Original Filed Sept. 13. 1922 2 Sheets-Sheet 2 Patented Nov. 10, 1925.

ALBERT HOBERECHT, or Dos ANGELES,CALIFOR1IA, Ass IG No'Ivor one-Hana. r0

EDWARD MCKAIN. or LOS ANGDLEs, c-AL'IronN'IA.

FEEDING AND DISTRIBUTING APPARATUS roe ROLLER ivIILIfs. V

Application filed SeptemberiS, 1922, Serial no. 587591 8. Renewed February 4, 1925. i

T 0 (1 whom it may comma.- H

Be it known that I, ALBERT HoBEREo'Irr, a citizen of the United States, residing at Los Angeles, in the county of Los Angel'es 5 and State of California, have invented new and useful Improvements in Feeding and. Distributing Apparatus for Roller Mills,

ot which the following is a specification.

This invention relates to improvements in a feeding and distributing device for roller mills such as is illustrated and described in crushing rolls disposed ther'ebelow in an even manner throughout their entire length.

Anotherobject is to provide a feeding and distributing device in 'wh icli'a rotary distribution of the grain or milling material is converted into a straight line throw.

Still another object is to provide a distributing apparatus in which the size of the distributing outlets in the rotatable distributor may be conveniently regulated to suit the character of stock or grain being operated on. i I

Another and important object is to provide an adjustable deflecting means located adjacent the rotary distributor,.,wheneby to efiiciently control the throw of grain or stock issuing thereform. A further object is to provide a-distributing device so arranged that anyjforeign matter such as nuts, bolts, or other heavy metallic objects that would injure the grain rollswould be arrested in their passage 40 therethrough. 1 p v U I accomplish-theabove objects by means of the mechanism described herein and illustrated in the accompanying drawings, in which:

Fig.- 1 is a central longitudinal section through the'upper portion of a roller grind ing mill of usual form, showing my feeding apparatus in sectional elevation in position thereon. I

Fig. 2 is a transverse sectional view taken on line 2-2 of Fig. 1', illustrating diagram mati'cally the action of my distributing member in converting a rotary [throw of milling stock into a straight line throw.

and distributors for roller 'mills, Serial No.

. Fig. 3 is a vertical sectional elevation of the upper portion of a roller mill, taken on line 33 of Fig. 1, the, feeding and distributing mechanism being in elevation.

Fig. 4 is a plan view of aspider'designed for supporting the gear casing in position.

Fig. 5 is an elevation of grain distributor.

Fig. 6 is a partial sectional plan'v'ie w of the grain distributor, taken on une- 6' 6 of Fig. 5. p "j p Fig. 7 is a partial sectional plan view of the distributor out-let adjusting means, taken on line 7*? of Fig. 5.

This construction is designed to"replace the mechanism illustrated in my oo pending appllcation heretofore referred to, mainly 'is" fitted with a pair of cylindrical grain milling rolls 9 and 10, arranged tobe rotated from a source of power, (not shown). Disposed above rolls 9 and 10 'ar'eca'nt boards 11 and 12, upon which the 'grain or other stock drops during the op'erat-ion of the mill and by which it is deflected on to the rollers in an even manner throughout their entire length.

The top closure b'oard13 is provided with a rectangular opening 1fl,'the length of said for th'e'reason that I have simplified the dis tr butlng mechanism so as not; only to in- 1 openingelvt'en'ding the entire length as the" mill rolls 9 and 10 disposed therebelow, whilethewidth is approximately equalto the distance betwe n'the u per edges of the boardsll and 12, as clearlyshown Fig. 3

of the drawings. Referring more par and 3, 15 designates my improved feeding and distributing apparatus, which referably consists of a rectangular housing 16 which extends around the sides of 'a rectangular opening lfl'tormed closure board 13 of the mill. V The-oppositely 'dispjosed end walls 170i the housing 16 and .the'side walls 19 are vertically disposed, ']the walls "19 being I adjustably mo nted asshown in Fig. 2 0

ticu'nrly to Figs 1 in the top the drawings, for the purpose of adjusting the same to or from the distributor, as will t rigidly secured in position by means of a ply (not shown).

spider 23 having arms 24 which are bolted or otherwise secured to the top wall 21 of housing 16. Vertically disposed in casing 22 is a revoluble shaft 25 to which is secured within the gear casing a beveled pinion 26 which meshes with a beveled driving pinion 7 secured to the inner end of a driv ing shaft 28. This shaft extends through the bearing 29 to the outside of the rectan gularhousing 16 and. is provided with a suitable driving pulley (not shown).

Mounted on top wall 21, and surrounding opening 20 is an upward movable circular casing 30 preferably formed of transparent material provided with a top wall 81 supported by means of bolts 32, the transparent wall enabling the operator to observe the flow of stock passing to the distributing mechanism located therebelow. I Supported above wall 31 bymeans of bolts 32 is a circular'disk or wall 33 in which'is' centrally disposed a thimble 34, the lower end of a grain delivery spout 85 projecting thereinto, the upper end of the spout being connected to a'source of grain or stock sup- Secured to the upper end of shaft 25 and rotating therewith is a rotary feeding pan 36, having an outwardly inclined annular wall to facilitate a rapid and even distribution of the grain or stock delivered thereto.

Top wall 31 is provided with a central circular opening 37 in which is mounted a short pipe or sleeve '38 adjustably secured by means of a set screw 39 to the lower end of thimble 34, the lower end of the sleeve terminating within the feeding pan. By adjustably mounting the sleeve 38 on thim ble 34, I am enabled to adjust or regulate the amountof grain or-stock deliveredto the feeding pan, and thus prevent an overflow to grinding rolls, or to drop sleeve 38 into bottom of feedingpan 36 and'entir'ely 'shut off th stock supply to grinding rolls.

Secured'to bolts 32 disposed within the space enclosed by the circular transparent wall of casing'30, and adjacent the'upper edge of feed pan 36 is an annular deflecting ring 40,- frusto conical in form, designed to directthe grain or stock downwardly and inwardly and on to a circular stationary plate or ledge'41 secured in position on the upper wall'42 of the gear casing. By the provision of the deflecting ring 40-and plate 41, all foreign substan es, such as bolts, nuts,

or other metallic or heavy objects that are accidentally mixed with the stock flowing through the grain; delivery spout will be arrested during their passage through the distributing mechanism and lodged on the plate or ledge 41, from whence they may be readily removed by the operator by raising circular casing 30; while the stock or lighter material slides or rolls off and passes on downward between gear case and the casing.

Mounted in opening 20 formed in wall 21 of housing 16 is an annular deflecting ring 44 frusto conical in form and similar to' ring 40, ring 44 directing the stock or grain falling thereon to the center of the distrib utor 45 located therebelow. Distributor 45 is rigidly attached to the lower end of shaft 25 by a set screw 46, and is preferably of circular form, having a bottom; wall 47. Bottom wall 47 is provided with an annular side wall 49 having a plurality of discharge openings 50 formed therein and equally spaced apart. The size of openings 50 is controlled by an annular closure ring 51 disposedwithin the distributor and con tacting with the inner peripheral surface of its annularwall 49. Ring 51 is provided with a plurality of notches 52, equally spaced apart and similar in configuration to the discharge openings formed in the wall of the distributor. Ring 51 is held in adjustable relation to the distributor wall by means of an adjusting bolt or screw. 53 which passes through a slot 54 formed in the upper edge of wall 49. By means of ring 51 the size of th openings 50 in the annular wall maybequickly increased or diminished while the feeder is not in open" alien, to suit the character of material being distributed, thus when the mill is to operate on bran or fine fluffy middling 5s the ring 51 may be adjusted so that the openings in the distributor wall will be unobstructed, and when wheat, barley, or coarse middlings or round stockfis being fed, the ring; may be adjusted to decreasethe size of the openings. I a

The above adjustment may be found de sirable should the discharge of grain from the feed pan v86 be irregular, and in that event the openings 50' in the distributor may be partially closed so'that a portion of the grain will be retained in the bottom of the distributor; thereby avoiding all waviness or flickering of the material as it passes through the distributing openings to the i 1 grinding rolls. W

Adjustably suspended by means of bolts 60 is a material deflecting member61, which is of greater diameter than the distributor 45. This deflector preferably consists of an annular ring preferably circular in cross section so that it will present'no sharp edges to the material that is forced outwardly to the rolls by the distributor 45. "When bran or fine fiufiy middlings are being distributed to the rollers the deflecting member eiwill be raised (so as to permit a run throw of 'them'aterial to the rolls, while when Wheat, coarse middlings, or round stock is being fed the deflector member 61 will be lowered into the position as shown in Fig. 1 of the drawings so as tocontrol the throw of the material which is much heavier in character and travels farther than the lighter fluffy materials heretofore set forth. Ihe deflector 61 may also "be raised on one side and lowered on the other side so as to absolutely'control the flow of milling material to the rolls, thus permitting a larger quantity at one end and a. relatively smaller quantity at the opposite end of the rolls.

In Fig. 2 of the drawings I have illustrated diagrammatically the distribution of the grain or stock from the distributing member 45, and in order to clearly illustrate the path of travel of the grain orother material being fed to the mill from the distributor I have indicated the "same by a plurality of fin'e lines '62, emanating from each opening in the distributor member. Grainor other material thrownfr om the openings a adjacent the side walls 1 9 of the housing will be deflectedby said walls towards the center of the rolls, while grain impelled from the openings indicated at N 7 once be apparent" thatI have provided an 'b will be forced agreater distance" before striking the wal1s'19, and will be deflected on to the rolls a greaterdistance fromtheir center than the grain 'flowingfthrou gh the openings a-. The "o enin s c-+ "in'fthe distributor member being almost entirely out of line with the walls '19, the grain or other material will impinge towards the "end walls 17 and flow towardsthe extreme emis of the milling rolls 9 1 0, thuseffecting an even horizontal distribution of the grain or other material throughout the entire length of the milling rolls.

From the foregoing description it will be apparent that by enclosing the distributor member 45 within a rectangular housing I am enabled to change a circular distribution of the grain or other material from the revolving distributor into a straight line distribution or throw, the walls of the housing forming an accurate and even deflecting means. When feeding some classes of stock, such as wheat, having a tendency to travel farther than light fluffy stock, it may be found desirable to move the oppositely disposed side walls 19 of the housing from each other so that a larger quantity of stock will flow toward the center of the rolls, and to this end I have provided each of the side walls 19 with an adjusting means 65, illustrated in this instance as a slot and set screw construction, although any other suitable convenient adjusting means may be employed. Q

As the grain is fed downwardly in a andsliding oft" the'tiutehe'dge of theann deflectlng ring; 41', continuing onto annular .ati'on mu es positive and ve stream through the grain "spam the source of supply it passes through the prevented from entering themills and injuring the rolls. I p v p j I p The material eontmues-downwardi "'r'er lar deflecting ring 4& and which, deflectsfthe material towards the center of the distributing member 15.4

.The material is thence thrown outwardly by distributing member 45'through the openings-formed in its side wall mately' as shown in the diagrammatic view,

Fig. 20f the drawings. H g g V By providing an annular a'djustableidefleeting member 61 adjacent the "outlet-open ings in the distributor 45, I- amen'abled to control thethrow of the material from the distributor in an "even and efficient manner. i From the foregoing ,d'escrIpt on t w ll at extremely simple'means for, converting a circular flow of gram or other'stoch from stock will be Vfedevenly on. to the milling rolls throughout their entire length that the product resi'ilt'in'g from the mining aperproduct from the P giinding rollsl I It -willb e noted from the foregoingde- 'scriptiofi that by meanest aistntuun device I am enabled tojdo away entirely with all forms of hoppers, the flow of milling material passing through pipe 35 being delivered thereto through the medium of an elevator, reel, conveyor, or sifter.

trolling the-flow of the milling material passing through pipe 35 all danger of delivering an excessive quantity of material Also, it will be observed that by cone member disposed within said rectangular housing and below said delivery spout.

In a feeding and distributing-mechanism for roller mills, a rectangular housing having an opening in its top wall, a stock inlet pipe communicating with the opening in said housing, a rotary distributing member mounted in said housing adapted to distribute stock directly to the milling rolls, and

means to rotate said distributor.

3. In a feeding and distributing mechanism for roller mills, a housing having an opening in its top wall, a casing mounted on said housing over said opening, a stock delivery means communicating with said casing, a rotary feeding member mounted below said delivery means, a rotary distributing member mounted below said feeding ,member, a deflecting member .mounted adjacent said distributing member,

communicating with the opening in said housing,

a rotary distributing member mounted in said housing, a stock deflecting means surrounding said rotary distributing member, and means to rotate said distributor.

6.-In a feeding and distributing mechanism for roller m1lls, a housing having an opening in its top wall, a stock-inlet tube communicating. with the opening in said housing, a rotary distributing member mounted in said housing, an adjustable stock deflecting means mounted in said housing surrounding said distributor, and means to rotate said distributor.

7. In a feeding and distributing mechanism for roller mills, a housing having an o enin therein a rotar feedin an b 7 b having stock outlet openings therein, means to increase or decrease the size of the stock outlet openings in the distributing member, and means to rotate said distributor.

9. In a feeding and distributing mechanism for roller mills, a rectangular housing having an opening in its top wall, a stock inlet tube communicating with the opening in said housing, a rotary feeding pan mounted-below said inlet tube, means to regulate the flow of stock to said feeding pan, a rotary distributing member mounted below said feeding pan, means to direct the flow of stock from said feeding pan to said distributor, and means to rotate the feeding pan and the distributor in unison.

In witness that I claim the foregoing-I have hereunto subscribed mv name this 23rd day of August, 1922.

ALBERT HOBEREGHT.

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