US1013611A - Rotary cutter. - Google Patents

Description

C. PETERS. ROTARY GUTTER.

2. 1 0u 1 2 n. na Td d e t n a P nw 1 9 .1 0' 1 V. o N D E Tu I n! N o I T.. A o I T.. P. P A

a l l n0 9 o@ un 2 SHEETB*SHEBT1 M. 0. PETERS.

ROTARY GUTTER.

BO l u APPIIIIOATION FILED NOV.10, 1910. Patented Jan. 2

2 SHEETS-SHEET 2 To all whom it may concern:

nIL'rcNc. rn'rqens, or oma, Nnnnasxa.

aunar Be it lmown'that I, MILTON PETERS, a

` citizen of the United States, residing at Omaha in the county of Douglas and State of Nebraska, |,have invented certain new and useful Improvements in Rotary Cutters, of which the following is a specilication.

This invention relates to certain new and i useful improvements in rotary cutters, or

i in the severalviews I* terial. l

` Primarily, the machine is designed for reducing alfalfa-hay, prairie-hay, corn products or any like material, and also yfor cutting excelsior, paper, hair, moss, wool', eott ton or similar fibrous substances,` and also continuously and simultaneously separating. the fine reduced material from the c'oarser material requiring V'further reduction.

" The essential object of the invention is to simplify machines of this general class and to render the cntting mechanism of these machines' more eliective byarranging the saine so that the cutters act more elliciently to shred, tear and cut the material by a shearing operation; and the invention consists ofthe parts and the constructions,

arrangements vand combinations of parts which I will hereinafter describe and claim.

^ In the eeompnying drawings ,frming part of this specification 'and in which simiar reference'characters indicate like parts `igure I is a vertical, longitudinali sectional view of a rotary cutF- ter lembodying the 'salient features of m inmachines for disintegrating or reducing may vention. Fig.-2is an enlarged sidee evation of one of the lmife-carrying hubs detached. Fig. 3'is.a vertical sectlonal view onvthe line X--X of Fig. 2. Fig. 4' is a detail' in plan view of one ofthe cutting blades. Fig. 5 1s a .part side elevation and art`sectional view oftheecutting blade o Figui. Fig. `6 illustrates a plurality of the hubs and cutting blades arranged side byA side ontlie driving shaft. `In carrying out my` invention I mount the machine upon a suitable bed or foundation, A, and-I construct the inain frame oit-'basing'. with parallell sides, B,'and connecting bac and to plates C, so as to form substantially an inc os'ed chamber in which the 4rotary cutter'operates, the sides of the frame or and also the tcp being extended in a forward direction, as at D, to forn sub-l stantially an inclosed feedin chamber, supplied with complementary devices,

Specication of Letters Patent. Application led November 10, 1810. Serial Bio. 81,5 67.

to the machine.

. Patented Jan. 2,1912.

which chamber open at the mit theadmission' tothe feeding devices of the materialto'be reduced. f f

4 In the Aherein illustrated 'embodiment of my invention, the materialr is fedto the receivmg chamber ofthe casin or frame by means of an endless conveyerelt, E, which is horizontally disposed and passes over suitable end drums, e, e', one of which has its tension of-the beltmay 'be regulated.

' Various means 'may be. employed for securing the adjustment noted in Fig. 1. I disclose for the purpose theY horizontal frontv to perjournal boxes, e?, adjustably mounted on a. horizontal frame or support, F,'wherebythe screws, G, having many-sided outer ends adalpted for the reception of a wrench or like too IWainm the receiving chamber 0f the frame or casing and mounted in the sides thereof over the fdelivery, end of the conveyer-belt,-E, suitable feed rolls H, the innermost one of which is shown ashaving its shaft, k, mounted in journal boxes, `h', to which are connected vertical screws, h2, whereby said roll may be raised and lowered relatively to the carrying' surface of the b'elt and according to the 'nature 'of the material undergoing treatment. `The feed-rollers may be of any approved they are herein 'shown as beingzfarmed' with rows oper'pheral 'teeth that they might 'the more eilicie'ntly engage the hay, or other material, and positively hereinafter described.

feed it to the cutting devices,

Qn theouter of the shafts, It, oftho feed rblls are Sprocket-whois, 5, around which passes asprccket chain, 6,' for operating the rolls in the same direction, the said sprocket-wheels a' v dchain being shown by dotted lines inFigJl.

It will be observed? that the receiving i chamber in which thefrolls operate, is subjstantially an inclosed chamber, F'thisbeing desirable as tothe elimination' of the ohjectionable'f-"resence of dust, exterior 'go better provideV for this function of the machine, l'the' top of the casing is pierced with opening, 8,- which a pipe or connection, not shown, from alsiiit# able suction'orblastlinay lead, forcondnctl ingthe dust and neparticles to. any suitable receiver or machine.

It might also be here reinarkedthat the top or cover portion of the casing may be provided with sections, 9 and 10,511? one for the receiving chamber of the casing and the other for the cutting chamber hereinafter mentioned, which sections are hinged at 11 and 12, wherebyl access may be had to the chambers and to the feed-rolls and` rotary cutter.

The leading feature of my invention 1s the construction' yand arrangement of the parts constituting the rotary cutter and which feature VI will now describe. This cutter consists gf a series of hubs, 13, placed side by side upon the shaft, 14:, and fixed thereto, each of said hubs comprising a hub.- portion, 15,fan-dfgintwardly extending arms, 16.A Byv refereiicei'to Fig. 3, it will be seen that th'ejouter'end of each arm 16, is widened toform' a broad flat seat, 17, fr the blades or cutters, 18. 'f The widened seat portions are transversely linclined as shown, the inclination given the blade or cutter being common to all the blades or cutters of a particular hub-member. `In practice, I have attained the best results by placing the hubs in po- 5 s'ift'iorfienfthe shaft, 14, in such manner that the'frblades or cutters of alternate hubs incline oppositely to the cutters ofv adjacent hubs. In other words if the cutters or blades of the first hub incline to the right,

the blades or cutters of the next hub will inl eline to the left, as illustrated in Fig; 6.

The blades are spaced apart around the circumference of the rotary cutter andthe hubs are so set on the shaft relativel to each other that the blades of alternate ubs substantially register with the spaces be-A cutters thus formed producing an eiiicient cutting medium for any material of the character before described coming into the range of action of the blades and a suitable stationary cutter-bar. f

The blades, 20, consist ofpieces of steel or other suitable material of substantially the form of a parallelogram'; that i's each blade represents substantially'` a rightflined quadrilateral figure, whose opposite edges are parallel and equal. -The disposition of the blades is such, however, that the side edges of each blade stand parallel with each other and in a plane which is at rightangles to the shaft, `14, or the axis about which the hubs rotate, while the cutting edges extend at an incline from one side edge ofv a blade to the other side edge thereof. Each blade has its opposite inclined edges beveled to form a cutting edge, and the bevel of one is reversed or opposite to 'that of the other edge, whereby the blade may be reversed and either cutting edge employed for the ydisintegration of the hay or other material. Further, each blade is provided with one orA more elongated slots,

21, Ithrough which bolts, 22, pass to rev rmovably secure the blade to Atheir-broad seat portion provided at the outerlends of the arms, 16.

By the arrangement described, the combined blades form what might be termed a continuous cutter of individual sections each operating with a shearingxaction to divide the hay or material passing over the' stationary cutter-bar. The number of blades carried by each hub, the number of hubs arranged side by side and the means employed for securing the blades to the arms, 16, may be varied to meet the size and capacity7 of lthe machine or to satisfy the desire or requirements, without departing from the scope of the invention.

The stationary cutter-bar, 23, is fixed to the frame or casing at the inlet to the chamber in which the rotary cutter operates; it is shown as substantially rectangular'in the blades of the rotary cutter, .whenl the edge previously used has become dull.

The chamber in which the cutter, rotates -is inclosed by a curved screen, 24, of suitable' material and the material divided by the action of the movable blades andst'ationary cutter-bar, enters the chamber and the particles fine enough pass through the meshes be conducted to anyy desired point of de:

posit.

The material of which the screen is composed includes any material commonly used for screening purposes, said screen being supported and secured in place by means of angle-bars, 27, or like flanged members bolted to the inside of the casing. Other forms of members capable o'f disintegrating or reducing material may be used in place of the blades shown and described and without disturbing the arrangement of separate hubs disposed side by side von a common shaft; the said members however, are designed to each rotate in. a circular path slightly',` different to the one immediately preceding it, and the character ofthe final prduct depends upon the adjustment of the blades relatively to the stationary cutterbar,4 the size of the meshes o'r openings in the screen, and whether the material acted ted by a belt, 30, to a band wheel, 31, on`

the shaft of the rotary cutter, which shaft also carries a small pulley, 32, from which a crossed-belt, 33, extends lto a large pulley, 34, on-the shaft, 35. Apinion, 36, on-the shaft, 35, meshes4 with a large 'ear-wheel,

,37, on the shaft,'38,and a pinion, 39, on

said shaft, 38, engages a gear-wheel, 40,

Iso

85 f cross-section so that it may be reversed to present a new cutting edge to the action of which in turn drives a pinion, 41, on the shaft of oneof the drums, e, around which the belt conveyer, E, passes. From the shaft, 38, a sprocket chain, 42, extends to one of the feed rolls, while a second sprocketchain, 43, connects these rolls so that they rotate in the same direction. This train of operating gears is no essential part of the invention and is only shown diagrammatically. y y

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is: v

l. The combination with a casing, a fixed cutter bar, and a radial shaft, of a cutter having a plurality of series of blades arranged side by side uponv said shaft, the blades of each series being transversely inclined and the blades of alternate series being inclined oppositely to those of the series upon each side thereof, each of said blades having a cutting edge substantially parallel 'with said axis.

2. The combination with a casing, a fixed cutter-bar, and a radial shaft, of a cutter consisting of a series of hubs arranged side by side upon said shaft, each of said hubs carryin an annular series of spaced blades,

j the bla es of each series being transversely inclined and the blades of alternate hubs being arranged transversely in line with the spaces between adjacent blades of contiguous hubs, said blades'having their cutting edges substantially parallel with the axis of the hubs.

3. The combination with a casing, a fixed cutter-bar, and Va rotary shaft, of a cutter consistingof a series of rotatable hubs ar` ranged inrsubstantially close 4order side by side upon said shaft, each of said hubs having outwardly extending arms, and cutting blades fixed to the outer ends of the arms and spaced apart and arranged in annular series so that they successively sweep past the edge of the fixed cutter-bar, the blades of each hub being transversely inclined in the same'direction and the blades of alternate hubs being oppositely inclined and arranged transversely in line with the spaces between adjacent blades of a contiguous hub on veach side thereof.

4. A rotary cutter having a--plurality of series of blades fashioned in the form of a parallelogram and turnable about a com- `monaxis, the blades of each series being 4ing, a plurality of outwardly extending arms spaced apart at their outer ends, and having said ends formed with widened transversely .inclined portions, blades fixed to said transversely inclined portions of the arms and so arranged that the blades carried by one hub stand transversely in line vwith the spaces between adjacent blades of contiguous hubs, the blades of alternate hubs being transversely inclined in an opposite direction to the blades of intermediate hubs.

6. The combination with a casing having an internal screen chamber and a stationary cutter-bar, of a rotary cutter operable in said chamber and consisting of a series of hubs arranged side by side upon a common axis, and having transversely inclined blades spaced apart around the circumference, the cutters of alternate hubs being inclined oppositely to those of intermediate hubs and standing transversely in line with the spaces eiyveen adjacent blades of said intermediate 7. The combinationwith a casing having an internal screen chamber and a stationary cutter-bar, of a rotary cutter operable in saidhamber and consisting of a series of hubs arranged side by side upon a common axis, and having transversely inclined'blades spaced apart around the circumference, the cutters of alternate hubs being inclined op` positely to those of intermediate hubs and standing transversely in line with the spaces between adjacent blades of said intermediate hubs, said blades having substantially the form of a parallelogram.

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

f MILTON C. PETERS. Witnesses: v W. T. BURNS, A. FRALICH.

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