US823857A - Grinder for cultivator disks and tools. - Google Patents

Description

PATENTED JUNE 19, 1906.

- G. B. GREENE. GRINDERFOR OULTIVATOR DISKS 'AND TOOLS.

APPLIUATION FILED 31-31912 1905.

3 SHEETS-SHEET'L I lnventoz;

film

PATENTED JUNE 1-9, 1906.

G. B". GREENE. GRINDER FOR GULTIVATOR DISKS AND TOOLS.

APPLIOATION FILED SEPT. 2 1905.

3 SHEETS-SHEET 2.

:IMQQJJ/ ZZZ A Witnesses:-

N5. 823,857. PATENTEDJUNE 19, 1906. G. B. GREENE. I GRINDER FOR OULTIVATOR DISKS AND TOOLS.

APPLICATION FILED SEPT. 2, 1905.

'3 SHEETS-SHEET s.

m V; li l l l u u Witnesses:-

M", r I

T (ZZZ whom it may concern: 1

- GEORGE E. GREENE, ojr coU r AND, CALIFORNIA.

e Fii'No-E FOR ouLriVAToR DESKS AND Toots.

No. saastv. .1

Specification of Letters Patent.

Patented June 19, 1906.

I Application filed .eptcznher 2, 1905'. Serial No. 276,812.-

Beit known that I, GEoEeE B. GREENE, a

citizen of the United States, residing at Courtland, in .the county of Sacramento and State of California, have invented new and useful Improvements in Grinders for Cultivator Disks and Tools, of which the following is a specification. I

My inventionrelates to grmdingnachmes,

and especially to an apparatus for grinding and sharpenin disks of cultivators, disk plows, and the ike.

The concavo-convex disks such as are employed for cultivating the soil become so dull by continued use asto needregrindingor sharpening from time totimc. These disks are usually arranged'in gangs fixed-to shafts which are rotatably mountedlin brackets or standards carried by the "machine. The mounting ofa disk onitsshaft is such that it is seldom exactly 'true,.and when the shaftis disk is present.

turned a more or less noticeable wabble to the Iheref it is attempted to grind the eripherai edges of a disk by rotating the atter'on-its axles, it is necessary to make some provision by which the rinder will act properly'upoh the surface of t e disk and accommodate itself automatically to the f wabble of the di k? .3

in whichmachinaevery necessary adjustment is made or arranged forwhereby the grinders may accem1nodatethemselves to every ineq uality.;, in the; revolution of the tion of same.

, substance suitable for the ur ose.

disks, and in. which machine the disks are. given a rotatative movement coordinate with the actlon of the grinders, and also which machine is adapted to grind with equal facility disks of different'sizes.

The invention consists of the parts and the construction and the'combination of parts, as hereinafter more fiilly described and claimed, having reference to the accompanying drawings, in which I Figure 1 is a plan 'view of my machine. Fig. 2 is'an elevation of the same. Fig. 3 is a plan of the grinder-shaft carriage. Fig. 4 is afront view of same. Fig. 5 is a side eleva- A represents the grinders, which may be of carborundum, emery, or any other abrasive These grinders are mounted upon s 1a ts, as at 2, of which there may be as many as desired,

standing approximately parallel with each I other and turnable in journal boxes or bear-.

ings, as at 3 and 3, whereby the grinders may be disposed in a position convenient to grind the disks i. The boxes 3 3 are mounted' on suitable carriages (hereinafter to be described) on the rod 5, which is adjustably mounted on frame 6 of the machine.

.qlisks may be mounted on individual shafts win the particular machine with which they These are ordinarily identified as a disk plow or they may be arranged in gangs of two or more disks fixed upon a single shaft,-"as in cultivators and the like.

,My machine is designed to grindjavrth- ..cqual facility the single disk of disk plows or the multiple disks of cultivators and to grind disks of different sizes. disks are usually fixed to a shaft which is In cultivators' the suitably journaled in brackets or standards carried by the frame of the cultivator. The disks may be removed from the cultivator by detaching the standards from the cultivatorframe. My machine is constructed to permit the disks to be supported directly upon their own shafts and their own standards during the-grinding rocess and to ermit of the disks being quic ily' adjusted relative to the grinders.

The object of'my'invention is to providea, simple practical machine by which the disks" may be evenly ground on their own'axis, andin suitable guides in the frame 6 and disposed relative to the grinders The brackets or' standards in which the disk-shaft 8 is journal'ed are stood on the carrier and bolted or otherwise temporarily secured thereto with the disks pointing upward. The disk-shaft is coupled to a driving-shaft 9 by means of a socket-piece or chuck 10. The shaft 9 car ries the pulley 11, through which power is transmitted to revolve the disks to present all portions of their ed gcs to the grinders A.

-The grinding shafts 2 have fixed upon them the friction-rollers 12 which are adapted to contact with corresponding frictiondisks 13 slidably mounted on the shaft 14. As here shown, theshaft' 1e has a featherway, and the disks 13 have each a feather to fit this feather-way, and each disk is supported on the side opposite to its roller 12 by a s ring 15 and an adjustable collar 16. The disks 13,1ike the carriages of the shafts 2, are

adjustable to suit the conditions and the dis 7 1s a shelf or carrier vertically adjustable in the machine to have the grinders operate in I and third of the disks grinders and their carriages so that the grind i ers'will operate upon the second and north of the disks, or in any other suitable relation.

The shaft 14 is supported so have it limited lengthwise movement in its boxes and carries respective lived and loose eollars 17 18, between which collars are arranged it series of sntifrietional balls 19. A springlever 20, which. is fulerumed at 20, engnges the loose collar 18 and is adopted to he operated to move the shaft and the disks 1.3 to oe'use the letter to press with greater or less forcenpon the roller-s12. The splin -lever 20 is operated from the hand-lever 21, which is i'nlcrnnied, as at The two levers are connected by a link 23, ene the lever :31 is held in any suitable position by means as the oewl 2st engaging the reel: J, The iii iever 26 provides yielding henring end of the shalt l4 and allows n limited lengthwise movement of the shaft, while the springs 15 permit the drive-disks 13 to hm :1 limited sliding movement on the shaft quire independent of the letter.

.l ho adjustments of the eolhirs 1e and the springs and the operation of the lever .21 are such as to press the drive-disks 13 ngninst the roller 12 with just the proper frictional contnot to properly drive the grinders. Enos grinding-shaft 2 is so mounted that it is enpnble of a movement in any direotimi, so the" the grinders may move to and from n dish either laterally or in a. vertical plane. 'lhese various adjustments for the grinder and its shalt are provided by the following means: The rear box 3 is adopted to swivel shoot it substantially vertieel axis 27 26, turnnhlo about a horizontal axis, which letter is sup ported upon an angle-plate 28. The latter is odjnstnhly' secured to it her or plate 29. The her 29 is pivoted at C (l to on underneath angle-plate 31, which latter is pivoted on :1 horizontal axis carried by it suitable hearing or T 32, which is tnrnnhlo and slidshle on the lmr The forward end of plnte 125) is pivot idly connected by n link 33% to no merit-plate 5' ,whioh letter is pivoted to osevond l in; or "4 35, which is turnzihlo :md shdnhle on the bar 5. Hy loosening the nuts I'Zii 37 on the pivot-bolts which connect the link 53 to plates 2i) and ill the henrings 32 35 mnyhe sepzunted more or less, as desired, to e:n'respondingly tilt the plate .29 mid shnlt 2 relative to the siipportinwlmr 5. Shall 2 is l'ree to slide in its lronl. hox ii The latter is mounted on n hinged slnndnrd 3%, which is movable in o plnno transverse lo plate '3) to permit of n non-u! movement ol the grinder relative to n (:ultivntor-disk. 'lho uppei'emi ol' the stnndnrd is normnll hold in n :-ml st:mtinll v verti onl position liy n brow-rod Ill) and the springs il), the lower end ol lhe rod ill) l)ill loosely supported nt 4i and the springs 10 living or end then to move the l snilnhle ranged one on each ol' the standard with stops the oou ends of The i The to; on oi the springs may on regulated h suitable in one, as it turnbuckle e2. Thus it is seen that the standard. lib is permitted :1 limited r elriing movement on it hinge and .olo'i g rod 3) noi I n the sprii 40} the hitter li'n'mino :i re: Hi ipor, desired for the stand sleeves 32 3.3 he shaft 5 permit the nested ports to he t: i about the rod 5, and thus tilted up entir out oi the way to allow the disks n'hieh. ore to be ground to he moved along; on the onrri-er T or to he. inserted into or taken out of the ma spi in chine. 'lhese sleeves or henrii s 31: 3- being i'reoly slid e on the rod permit rho grinder-shalt and i1 mrringe to he moved l *rinder to proper i-oim-ide i :iieohoin h to he ,u ronnd. l orwnrd do'enor eni'riii ililllll 1": l1. From lhe frame (5- l I :-i sens turning; in to-- spemive Sd-lYildlillS if} on frame screws hi and the mus l7; I 3 .HHl 5 to hr ndpisled hoih H hori'a ill ord r lo elieet 4'. slill m re delimit-.1ndioslmentoi to permit *neln adjusted rein Hill A iimllr.

und r i wort mgr. I. i \lolion liiinpnr '2 mid rom any soil-- iihle source of power nod hy :n zipproprizmr connections. l hove h wn a: pow r shell 4?, Cufl' ;l:1, 1 :1, idler -28, onion letter is i-onmit'ied to a pu on shalt ll l 2 :1 hell, ill, Shell l-ieor; o r-mxond pollox in), from whivh motion is 1'1 snorted '10:? !llli" 'ier slnalt 51 h the heli 5;; From sholt M power is transmitted to pulley ll on shall .l hy the hell; 53. Thus ii is seen lhnl holh the grinders end the disks to be ground are turned from the some soorve of ower. ond l z-uiitzihly piopoi'li he the severe! (ill\'- lilo eol iolowd at :1

i he rotation oi umioi'siood lhoi ll :ind il may goers drh. t .i convenient lhe grind s. v 3 power to drive lrnnsi'niiled h m. by hand or my moior The operation ol 2hr derive is as follows: The disk or disks to ho ground are snitolilv' sr-i-ured on the vnrri-or 7 nod oIliH'1lud \Kllll the shalt E 'lhe !ili:ll :nljnstmem ol the ear ier 7 is ill'erled hr soilnlilo nouns, us shown nt lo lirimg {he upper edge oi tho dish lnlo proper operdive position rolnlivi; to ii grinder. 'lho voi'rinoe l'or llH' grinder is shiilod l(*Il 'lll\(iJ-;( o 15in m! C- inio pro er posit ion, nnd sin-h odi 1mvnlmollhesewrnl memliei's oi lho i'ziri'ion i nrv mini c lit to rouse the grinder to present itself properly to the edge of the disk. Thus by loosening the nuts 36 3? the bearings 32 35 may be separated more or less, which will cause the plate 29 to 5 turn on its fulcrum 30 and incline the plate different types or to disks having different amounts of dish. By loosening the pivot-v bolt 28 of the angle 28 the grinder-shaft may be still further tilted and advanced or retracted. The proper adjustment of the bear ings 32 35 having been made, the nuts 36 37 are tightened, the proper adjustments of the various angle- plates 28, 31, and 34 having been made to conform tothe position of alinement of the shaft 2. Any adjustment of the grinder further than afforded by the bar 43 maybe effected by the adjusting-screw 46. A disk 13, corresponding to this grinder, is then movetLup into contact with the roller 12 and the spring 15 suitably compressed by the collar 16 and the latter loclred to-ftli'e shaft ,14. The leverZl is then moved to operate through the yielding spring-lever 20 to shift the shaft 6 in the direction of the roller 12 and cause the drive-disk to press against the roller with sufficient frictional contact to d lve the grinder properly. The shafts 14 and 9 being set in motion, the abrading force of the grinder may 5 be varied by the proper manipulation of the lever 21. The swivel connections 26 and 27 of the rear bearing 37 and the resiliently-su 'iported hinged standard 38, which carries the front bearing 3 admit of a universal move- 40 ment of the grinder toand from the disk in every direction, so that the grinder acts around the entire circumference of the disk,

' with a substantial uniform pressure andwith uniformityof result irrespective of the irregul'arities of revolution or the amount of Wabblo of the disltbeing ground.

It is possible that various modifications in my invention may be made Without dcpart-' ing from the principle thereof, and 1 do notwish to be understood limiting myself tothe specific construction herein shown and described. I

.llaving thus described my invention, what I claim, and desire to secure by Letters Pat ent, is

1. In a disk-grinding machine, the combi nation of means for supporting and for revolving a disk, a grinder having a movement laterally and vertically vwith respect to the disk, means to revolve the grinder, and means to effect sa d lateral and vertical movement and to maintain the grinder in operative contact with the disk.

2. in a disk-grinding machine, agrinder- 6 5 shaft, a swivelly-inounted box for one end of I the shaft, a grinder on the other end of the shaft, a spring-supported box for the shaft between its ends, and means to. revolve the shaft.

3. In a disk-grinding machine, a grindershaft, a swivelly-mounted box for one end of the shaft, a sprin -supported box for the shaft between its ends, means to revolve the shaft, and. men s to vary the tilt of the shaft.

4. In a disk; vinding machine, the'eombination ofa sup ort, a carriage rockable on said support, a grinder-shaft mounted on said carriage to have a swiveled movement sidewise and vertically, a grinder on said shaft, and means to rotate the shaft.

5. In a disk-grinding machine, the combination of a support, a carriage rockable on said support, a grinder-shaft mounted on said carriage to have a swiveled movement sidewise and vertically, a grinder on said shaft, and means to rotate the shaft, said car-- riage having also a lateral sliding movement on its support.

6. In a grinding-machine, the combination of a fulcrum-shaft, two sleeves turnable thereon. and one slid able on the shaft with respect to the other, boxes carried by one sleeve, a grinder-shaft supported in said boxes, a grinder 111 the grindenshaft, and articulated connections between the two sleeves to permit a change in. the inclination of the grinden shaft with respect to said fulcrum-shaft, and means to revolve the grinder-shaft.

7. in a grinding-machine, the combination of a ful(-run'ishaft, two sleeves turnable thereon, and one slidable on thcushaft with respect to the'other, boxes carried by one sleeve, a grinder-shaft supported in said boxes, a grinder in the grinder-shaft, and articulated connections between the two sleeves to permit a change in the inclination of the grindersha'ft with. respect to said fulcrumshaft, and means to revolve the grinder-shaft irrespective of said changes iii-inclination.

8. In a grindhag-machine, the combination of a fulcrinn-shaft, two sleeves turnable thereon and one movable to and from the other, swivelly-mounted boxes carried by one sleeve, a grinder-shaft supported in said boxes, a grinder on said shaft, means to revolve said shaft, and articulated connections between the boxes to allow of a change in inclination of the grinder-shaft with respect to said fulcrum-shaft.

9. in a grinding-machinc, a rotary grinder, a shaft therefor, a swiveled bearing for one end of said shaft and a spring-support hearing for the other end of the shaft to permit the latter to have a horizontal and vertical movement, and means to operate the shaft,

10. in a grinding-machino, a grinder, a

shaft therefor, boxes for said shaft, a resilien-t support for one of said boxes, and means to support the other box to pern'nt t to be rocked H1 either horizontal or vertical planes.

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