US836011A - Grain shelling and hulling device. - Google Patents

Description

PATENTED NOV. 13

0. DE A. CAMARGO.

GRAIN SHELLING AND HULLING DEVICE.

ABPIIIOATION FILED FEB 1, 1906.

' 3 SHEETS-SHEET 1.

ATTORNEYS 3 SHEETS-SHEET 2.

PATENTED NOV. 13, 1906.

0. DE A. GAMARGO. GRAIN SHELLING AND HULLING-DBVIGE.

APPLIUATION FILED FEB. 1, 1906.

W/TNESSES:

PATEN-TED NOV. 18, 1906. OJDE A. CAMARGO. GRAIN SHELLING AND HULLING DEVICE.

APPLICATION FILED FEB. 1, 1906.

3 SHEETS-SHEET 3.

. W/T/VESSES:

A TTOHNEYS THE NuRRIs PETERS cm, wasnmomu, u. c.

UNITED TATE P NT OFFICE.

, oor-Avro DE ALMEIDA" o ARGo. OF Rio OLAROyBRA ZIL.

GRAIN SHELLING AND HULLING DEV IC|E.

Toall whom it mag conceive.-

Be it known-that I, OOTAVIO DE ALMEIDA CAMARGO,a citizen of the Republic of Brazil,

and a resident of the city of Rio Claro, State of. S50 Paulo,-Brazil, have invented new and Improved Grain Shelling and Hulling Devices,-f which the.following is a full, clear, and exact description. I

The invention has reference more especially to devices for shelling and hulling coffee,-. although equally applicable: to the U shelling and hulling of other grains or mate- I rials ;and one of the principal objects thereof is toprovide devices for this purpose of an embodiment to overcomenumerous disadvantages and ob ections frequentlyencountered in the use of many other devices hitherto employed for similar purposes..

A further object, of the invention is to provide adevice of this kind-which is exceedingly simple in general construction, a as well as being economic-from a manufacturing standpoint, and which is also-effective and reliable n operation, possessing the capacity for long and repeated service. I

- The invention cons sts the novel construction and combination of the several parts, as will be hereinafter, fully set forth, and-pointed out in-the claims.-

Reference is to be had to theaccompanying drawings, forming apart of this specification in which similar characters of reference'indicate' corresponding parts inall the figuresa: f 1 Figured is a sectional side.,elevation, of .the'machine, the section being taken practically on the line 1 1 of Fig. 2.

.4 4.of=Fig:,-

Fig. 5 is an innerfacetvi 'e 9f a Stationary grinding-head for th cylinders. Fig. 6. is an o'utenfae :the. revolving grinding-head forming a portion ofthe rotating-grinding lindeiji, which head is adaptedtobe oppcseg the stationary head shown in:- Fig. 5:'.';' Fig. 7-is a diagrammatic viewof a portion of the rotating grinding and hulling cylinder laid flat Sis a detail sectional. side, elevation of means for. adjusting the driveeshaft, the sectionbeing taken on the line 8 8 of Fig' 2; and Fig.

Specification of Letters Patent.

Application filed February 1. 1906. flerial No 298.958.

Patented Nov. 13, 1906.

9 is a plan view of the mechanism shown'in Fig. 8.

\ The frameof the machine consists of two cheek-pieces 10, one being at the front and the other at the rear, w-hich cheek-pieces are preferably in the form of channel-irons, their flanges facing outward, and supports A, each;

support-comprising an upper bar member 11,011 which the cheek-pieces are bolted inany approved manner, and two legs 12,one. at the front and the other at the rear, and the legs at each end of the frame-are suitably braced and are connected, by rods 13 or their equivalentsg Y 3 4 'A cylindrical body;B is supported between the cheek-pieces lO by means'of feet 14, ex-

tending from the front to the rear of-the said body, which feet are secured in any suitable or approvedmanner' to the upper portions ofthe cheek-pieces 10. The cylindrical body B is constructed, preferably,-in twosections divisible one from the other, and preferably the'oiivision, ismade at the central portion of said body, as is clearly shown in Figs. 2 and 3. The upper section of the body is designated as 15 and the lowensection as.16.

At the meeting edges of the sections 15 and 16 of the body 13 outwardly-extending mating lugs-,17 are formed, themating lugs being secured together by-bolts- 18 orthe'ir equivalents, and at the end portions ofthe said cylindrical bodyB. apertured lugs 1 9 are carried outward from the said body at right angles thereto, and the endsof the body B are closed by a left-hand head 20 and a right hand head 21-, the heads being provided with peripheral lugs 2 3, which are secured to the corresponding lugs. 19 on the periphery of the body by suitable bolts 22, as is shown in Figs. 1, 2, and-4.

A. drive shaft-C is. carried loosely through the fixed cylindrical bodyB, and said shaft I Cat itsiouterends is journaled-in bearings 24,

secured to the-supportsAbetween the cheek pieces 10, as is shown in Fig.2, and at the left-hand end of the shaft O; a glriying pulley 25 is secured-which may be:;accompanied by a loose pulley, if desired, and at the left-hand endof the shaft 0 arr-enlargement 26 is formed. v

portion of the right-hand head 20 Oftheb dy --B,, as i s ho i Fig? w z p l ll receives the lower end of an inclinedspout 28, secured to a hopper 29 of anysuitablede} scription and in which the grain to be bullied An opening the-upper TOO is placed. An opening is made in the upper rear peripheral portion of the casing B, as is shown in Fig. 1, and this'opening is surrounded by the enlarged end of a spout 31, which spout has a downward and rearward inclination and is connected with a trunk C, which trunk is located at the rear of the ma chine, extending above and below the cylindrical body B, being suitably attached to the frame of the machine. This trunk C is rectangular in cross-section; but its upper end 31: 2 is preferably circular, as illustrated in ig. 2.

The trunk C is divided into two sections 33 and 34, the section 33, which is the inner section, being longer than the section 34.

The longer section 33 is open at its lower end, @while the shorter section 34 has a closed lower .end.34, and the division in the said trunk is produced by means of a vertical partition which extends from the lower end of the shortersection '34 of said trunk up to within a point near the top of said trunk, said partition 35, as shown in Fig. 2, being usually carried some distance upward above the line of the upper surface of the cylindrical body B, so that the only communication between the two sections 33 and 34 of the trunk C is at the upper portion of the trunk or above the partition 35. The spout 31, leading from the body B, extends into the upper portion of the longer section 33 of the trunk, as 5 is shown in Fig. 2,.

An opening 36 is made in the bottom of the cylinder B, as is shown in Figs. 3 and 4, and 1 at the sides of this opening36 cheek- pieces 37 and 38 are preferably made integral with the said cylindrical body, extending downward therefrom, which cheek-pieces are usu- I of segmental shape and extend the length of the opening 36. The cheek-piecej ally 37 is provided with a central opening 37 therein, and the cheek-piece 38 is provided with a corresponding opening 3.8. Each cheek-piece is provided at its inner face with a marginal-flange 39 and at its edge with a peripheral flange 40, as clearly shown in A dust-box D is located between the cheekpieces 37 and 38, the said dust-box being of corresponding shape to the said cheekpieces namely, segmentaland the said box D, preferably at its rear end, has a hinged connection 41 with the outer face of the cylindrical body B, as is best shown in Figs. 1 and 3, the other end of the dust-box when in closed position being adapted to engage with the body B at the opposite end of the opening 36,- as is clearly shown in Fig. 3, and when the dust-box is in position to practically close the opening 36 its inner end surface will be in engagement with the inner flanges 39 of the cheek- pieces 37 and 38 and the outer-end portions of said box will be in engagement with the peripheral flanges 40 of said cheek-pieces, as is illustrated in Fig. 4. The top of thedust-box D is covered by a screen 42, which when the dust-box is closed against the cylindrical body forms a direct covering for the. opening 36. This box, as its name indicates, is adapted to collect the dust, hulls, and chaif received in the cylindrical body B during the process of cleaning or hulling the grain. readily emptied or cleaned by dropping the box to the dotted position shown in Fig. 3.

The dust-box D may be held in its upper or normal position in many ways; but by preference a lever D is employed, which lever has a forked rear end section 43, pivotally connected tolugs 42, extending down from the end portions of the dust-box, as is shown in Fig, 4, and the handle portion of the lever D, whichis carried to the front, is ivotally connected to a hook-shaped latch The dust-box may be 44, which latch when the dust-box is closed 1 section as close as possible to its bottom 34 I A second pipe 47 is secured in the opening 37 a of the right-hand cheek-piece 37, and this second pi e 47 is carried down to a connection with t e-casing 48 of an exhaust-fan,

the fan beingmounted upon a shaft 49, suitably journaled in the lower portion of the frame and provided with a drivingulley 50.

It may be here remarked that t e feed of the material from the ho er 29 to the cylindrical body B is contro ed by means of a v slide 51, located in the spout 28 of the hopper, being operated from the'outside, and the said slide is held in adjusted position by a spring-finger 52, as shown in Fig. 2, and the slide operates upon suitable battens 53,

formed within the said s out 28.

In connection wit-ht e cylindrical 'fixed body B, I employ'two shelling-heads E and E. The shelling-head E, which-is the outer head, is rigidly secured in the said body, and the head E, which is the inner head, is ada tedt-o revolve within the body. The shel ing-head E is secured at its marginal portion to the right-hand head 20 of the said body B by means of screws or bolts 54 or their equivalents, and the said shelling-head E is provided with a central hub, through which the shaft C loosely passes, and with an opening 55, which registers with the opening 27 in the right-hand head of the said body B,

through which opening 55 theinner end of the hopper-spout 28 passes, as" is shown in Fig. .4. The shelling-heads Eand E are made to face each other, and the inner or working'face of the head E is inclined from the hub 56 inward or in direction of the opposing head E, and adjacent to the periphery -of the 'saidfixed shelling-head E a shallow-groove 57 is produced inthe inner or Working'face of said headE', and this grooved surface is covered by awire-mesh clot-h 58 or the'equivalent thereof, wire-mesh cloth being the covering which is preferred.

A. series of radially-disposed distributingribs 59 extend from the inner marginal portion of the groove 57 to a point around the hub 56, the said distributing-ribs being arched to a greater or lesser extent, and these ribs are also preferably of solid formation.

The shelling-head E has its hub portion secured to the shaft C, and the shelling-head E constitutes the right-handhead for a' shelling-cylinder E the left-hand head 53 of the said shelling-cylinder being a plain head, asshown in Fig. 4. The rotary'shellinghead E is'inclined upon its outer or operating face from its hub to its periphery, the inclination of the working-or operating face-of the "shelling-head E being outwardly or in direction of the corresponding faceof the fixed shellinghead E,-as is shown in Fig. 4. Thus itwill' be observed that the-shelling headsE and E approach. each other quite closely at their peripheral portions and are more or less widely separated at their central or hub portions.

The outer or operating face ofthe-rotary shelling-head E is'cover'ed from'its hub to its periphery with wireemesh cloth '60, and shelling-plates 61 are secured to the working or operating face of the said rotary shelhng-' head E, which plates are at right angles to the, said head and-extend from the hub portions to points nearthe-periphery, an'd the said plates are radially arranged relatively to V the hub and are tapering, being narrowest at their outer ends;'but the longitudinal working edges 61 of the plates 61 are straight, as

is clearly shown in Fig. 4, the arrangement of the plates or blades being best shown in Fig. 6.

' The ribs 59 serve to distribute the coflee'or other grain fed between the two shellinghcads and cause the grain to circulate and approach the outer edges of the heads E and E, the plates or blades 61 acting in conjunction with the 'ribs' 59 to initiallyshellthe' grain, and the bulls of the grain which escape theaction of the central portion ofthe'shelling-heads are removed, as the grain reaches the peripheral portions of said heads, by'rolling contact with the abradingsurfaces at such portions ofsaid shelling-head's.

The shaft is sprin '-cus'hioned at its lefthand end, so that if a ard object, such as a stone,should find its way with the grain between the shelling heads E and E the said heads will not be injured, since the shaft C, carrying the rotating-head E, would move endwise until such object wasfreed, and thenthe' spring-cushion" will return the shaft and the head carried thereby to'its normal position. It is also advisable at'times'to adjust the rotating shelling-head Erelatively-to the fixed shelling-head E, so that-large or small beans or grain can be accommodated. Such adjustments are niade as illustrated in Figs.

the left-hand journal-box24 is provided with outwardly-extending sleeves 62 atits ends, and rods 63 are assed through said sleeves .into the journalox 24-, where the said rods are secured, and the rods"63 are passed through eyes at the end of a connecting-bar 64, and the' threaded stem 65-of a wheel-66 is passed through the central portionof the said connecting-bar to a bearing against the enlarged left-hand end 26 of the said shaft 0. Springs 67 are coiled around the outer ends of the rods 63, having bearing against the ends of the sleeves 62 and against the connect ing-bar 64, which latter is held in place by nuts on the ends of the rods 63. After adjustment of the shaft has been made the shaft is'held in its adjustedposition b'y'means stem of the wheel 66, and as the two shelling heads E and E are brought together by such adjustment thetension of the springs 67- is increased l The suction in the trunk C is regulated by producing an opening 69 in one of its sides, as isshown best in Fig' 1, which openingis regulated by means of a sliding gate or'darnper 70, andi-t may be hereremarked 'thatthe fanshaft 49 is drivenfro'm the drivershaftOby placing-a pulley 71*on' the left-hand. end portion of the drive-shaft, w-hichpulley' is belted to the pulley O cinthe'faneshaft;

tion of the shellingi-cylihder directingblocks- 7 2 are externally secured," occupying a" diagonal position-on the said periphery of the'said'cylinder, asis best shownin FigS.-"3 v and 7, and these blocks haveithe'irl ed'ges 73 more or lessbeveled, and their inner endsfare inclined down to the surfaceof the shelling- -cylinder E tomeet directing-plates 74,"also inder, which plates are diagonally arranged also, and atthe opposite or'left h'and end of the cylinder stop-plates 75 are placed in order to prevent the shelled products from passing off at saidright-hand endofthe cylinder, since when the shelling-cylinder TE revolves the "grains and'hullsare gathered 'by the directing-bl'ocks 72 ,which closely approach the rect the said material to the directing-plates,

which carry the material upward until the At the .left-h' ndi-end o'fthe"per pheratp or- 2, 8, and9, wherein it will be observed that of a lock-nut 68', mounted on thethreaded exteriorly secured to the outer face of thecyl- -inner face'of the cylindrical body B'a'nd diopening 30 is reached in the cylindrical casing B, whereupon the shelled material and the hulls or husks are forced into the spout 31, and from said spout they are drawn by suction into the trunk C, where the grains, being heavy, drop down through the longer section 33 thereof and down to the bottom-of said section, while the hulls and other light particles are sucked down into the shorter section 34 and are drawn from thence through the dust-box D to the pipe 47 and finally reach the fan-casing 48, where they are discharged into the atmosphere. It may sometimes happen that the beans or grain will not be entirely shelled by the action of the ribs 59, the plates 61, and the abrasive facings on the shelling-heads E and'E.v Therefore at the front lower portion of the fixed cylindrical body B a horizontal slot 77 is made, and -a shelling-plate 76 is passed through the said slot into the space between the fixed cylindrical body B and the hulling or shelling. cylinder E as is best shown in Fig. 3. This shelling-plate 76 is adjustable and rests upon studs 78, secured to or constituting anintegral portion of the upper flange of the front cheek-piece 10 of the frame, and the plate is provided above said studs with slots'80, through which bolts are passed into the saidst-uds. Eyes 82 are formed at the end portions of the'shelling-plate 76, and setscrews 81 are passed through. these eyes to a bearing against the outer face of the cylindrical body B. In this manner the shellingplate 76 is rendered adjustable and can be held in-adjusted position, and, if desired, the set-screws 82 may enter suitable taps in said cylindrical body. Y

Inthe operation of the shelling plate or blade 76 as the grain or beans are carried around and up to be discharged, they will be subjected to the abrasive .or shelling action when the directing-blocks 72 pass the said plate 76, thus insuring all of the beans or grain being properly relieved from shells or hulls." 'Thus it will be observed that the two heads'E'and "E perform the initial or rough work of shelling and that the shelling-cylinder E its directing blocks, and the shelling blade or plate 76 finish the shelling operation.

' Having thus described my invention, I claim as new and desire to secure bv Letters Patent v i 1. A device for shelling and hulling coffee and the like comprising a cylindrical casing, a shelling-head secured to one end thereof, a shaft journaled in the casing, a cylinder secured to the shaft and provided at one end With a shelling-head cooperating with the 'shelling-head-of the casing, directing blocks and plates upon the periphery of the cylinder, an adjustable shelling-blade cooperating with the directing blocks and plates, and a trunk divided into two sections independent at the bottom and connected at thetop, one of said sections being connected with the casing, and an exhaust-fan connected with the other section. i

2. A device for shelling and hulling cofiee and the-like comprising a casing, a shellinghead secured to one end thereof, a shaft journaled in the casing, a cylinder secured to the shaft and provided at one end with a shellinghead cooperating with the shelling-head of the casing, directing blocks and plates upon the peri hery of the cylinder, and an adjustable she ling-blade cooperating with the directing blocks and plates, said shaft being Inountedto yield in one direction, whereby to permit the separating of the shellingheads.

3. A device for shelling and hullingcoifee and the like comprising a "casing, a. shellinghead secured to one end thereof, a shaft journaled in the casing and mounted/to yield with respect to the casing and provided at one end with a shelling-head cooperating with the shelling-head of the casing, directing blocks and plates uponthe periphery of the cvlinder an adjustable shelling-blade cooperating with the directing-blocks, a trunk comprising two sections independent at the bottom and connected at the top, one of said sections being connected with the casing, an'exhaustfan connected with the other section, and-.a dust-box communicating with the casing and with said last-named section of the trunk.

4. In a device for shelling and hulling coffee and thelike, a stationary casing, a shelling-head rigidly supported therein, a rotatable shaft extending through bearings in said head and in opposing walls of the casing, a second shelling-head mounted to rotate with the said shaft, the two shelling-heads being dished in'opposite :direc-tions, their dished or working faces being provided with abradingsurfaces embodying rings of peripherallylocated wire-gauze and projections from their hub portions, the said casing being provided with an opening-in'one of itsends, the stationary shelling-head being provided with a corresponding opening, a hopper extending through the said opening, the said casing being provided with another opening at its upper portion at the opposite end, a spout connected with the said upper opening, a trunk divided into two sections, independent at the bottom and connected at the top, one of which sections isconnected with the said spout, and an exhaust-fan connected with IIO the said shelling-head, a shaft mounted to revolve in bearings in the casing and in the said fixed shelling-head, a second shelling-head secured to the said shaft, the opposing or working faces of the two heads being dished in opposite directions and provided with opposing abrading-surfaces embodying rings of wire-gauze, a cylinder secured to the said shaft Within the casing, a rotatable shellinghead constituting an end portion of said cylinder, diagonal directing-blocks secured to the peripheral portion of said rotatable cylinder, extending to the shelling-head thereof, and diagonal plates or blades of lesser depth extending from the said blocks to the opposite end, whereby to carry the material from the casing to the upper opening therein, a trunk divided into two sections connected at the top, one section being closed at the bottom and the other section open at the bottom, a spout connecting the upper section of the trun: with the said casing at itsupper opening, and an exhaust-fan connected with v the closed section of the trunk, all operating substantially as described.

6. In a device for shelling and hulling coffee and the like, a stationary casing having an opening at one end and an opening at the top, a shelling-head secured at one end portion of the said casing and provided with an opening registering with that in the end portion of the casing, a hopper which is carried through the end opening in said casing and the corresponding opening in said shellinghead, a shaft mounted to revolve in bearings in the casing and in the said fixed shellinghead, a second shelling-head secured to the said shaft, the opposing or working faces of the two heads being dished in opposite directions and provided with opposing abradingsurfaces embodying rings of wire-gauze, a cylinder secured to the said shaft within the casing, the rotatable shelling-head constituting an end portion of said cylinder, diagonal directing-blocks secured to the peripheral portion of said cylinder, extending to the shelling-head thereof, and diagonal plates or blades of lesser depth extending from the said blocks to the opposite end, whereby to carry the material from the casing to the upper opening'therein, a trunk divided into two sections connected at the top, one section being closed at the bottom and the other section open at the bottom, a spout connecting the open section of the trunk with the said casing at its upper opening, an exhaust-fan con: nected with the closed section of the trunk, and an adjustable shelling-blade mounted outside of the casing and extending within the same, which adjustable shelling-blade is adapted to. coact with the directing-blocks on the said rotatable cylinder to finally act upon the beans or grain in the hulling operation.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OCTAVIO DE ALMEIDA CAMARGO.

Witnesses:

FRANCISCO DE OAMAReo, YoRDAo CORREA.

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