USRE4810E - Improvement in plows - Google Patents

Description

B. C. BLOMSTEN. Improvement in Flows. N0.` 4,810. Ressued March19, i872.

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UNITED STATES PATENT j OFFICE.

I `niineT- BLOMS-rig Waupaca wisconsin.

|MPRovEMENr|NfPLowsy Specification forming part ofLett'ers Patent To 'all whom it may concern:

Be it 'known that I, BENGT C. BLonsTEN,

v of Waupaca, ini-the county of Waupaca and L" State of Wisconsin, have linvented certain Imis a specification:

This invention relates to that class of plows.

y which are provided with .adjustable moldboards; and consists in certain details of con-I struction which will be 'fully described hereinafter.

In the drawing, Figures 1 and 2 represent perspective views of my improved plow; Figs. 3,'4, and 5, views 'ot' parts detached; and

Fig. 6, a plan view of 4the mold-board 'andl point.

' To enable others skilled in theart make and use my invention, I will now proceed to describe fully its construction and manner of operation.

My improvedplow may be generally described as follows: It is constructed prefera-v `bly entirelyoimetal. The beam consists of two metallic bars united together by dbolts, between 'which bars the land-side is secured, and falso proper blocks, for other purposes.

One of the bars is extended rearward'and' The parts will npwbe described in detail:-

a a represent the metallic bars which constitute the beam, one of which extends rearward and forms the left handle ot' the plow, as'

I clearly shown in Fig. 1. rI hese bars are securely united together by bolts' at :proper points, an intervening space between thetwo,

however, being formed by tl1 e 'interposition ot'I the upper edge of the land-side, the block a2 and the pivot-block a1 of` the." draft device. By means of this peculiar construction great strength is secured with lightness, the union of thc bars in Ithis` manner forming of'light -lnatcrial a rigid beam of great strength. 'lhc device for regulating the draft will now be described.v c represents a ythreaded rod1 which is held in a threaded socket in the pivot-block,

movements-in Blows, o f which the following- No. 108,095, dated october 11 1870; renale Nts-1,810, dated l March 19, w72.

al. Tothe lower .end of this threaded rod is attached a elevis, el, having bearings in its pendent ears, in which bearings rests a threaded rod, c2. c3 represents a double-draft 'tionary block a2.v By means of this construction the desired vertical and lateral adjustments are easily eiieeted. To adjust the draft vertically the elevis c1 is swung backward by vpartially revolving the pivot-block ai, until the draft-rod can' be disconnected from' the rear hook of the' device c, when the elevis c1 will, --ber free to revolve horizontally, bywhich' means the ,threaded vrod c will bev caused to travel up or down in its socket in the pivot block, and thus change the position of the elevis vertically relative At0 the beam. When the desired change has been made the draftrod should be again, of conrse,"attached to the draft-hook. To adjust the draft laterally the threaded boltc1 is simply revolved in its bear- A ings, by whichvmeans the draft device c, the

socket of which is, in fact, a screw-nut, is compelled to travel to one side or the other, fas it cannot revolve withfthe bolt on account of its hooks coming-'in contact with the elevis,

' and also on account of its connection with the draft-rod. D represents the colter, which may be either made plain 4or be provided with a point, d, having a socketv at its rear end to receive the frontend of the plow-point, as shown in Fig'sl and 2. The upper end of the colter is placed between the bars of the beam, andis secured in place by inea-ns of a peculiarlyshaped iron, d.- This iron eonsistsot' a suit-` able pieee of metal bent at .r a' m a2', for the purpose of enablingv itv to grasp the beam, and confine the. colter. In addition to the bends indicated it hasa longitudinal bend, so that when in position its middle portion lies at an, nglc aerossthe faceo'i the.'bea1n,whilc the.V upper and` lower 'bearing parts rest squarely upon the upper and lower edges of the beam'.

By means of thisconstruetion it is rendered capable of holding the col-ter fromdisplaecment above and below. The clamping` ac- 'tion of thisiron is caused by a screw-bolt,

the inner end of which prcssesagainst the beam. By means of this construction the -two gz" e8, th-extreme length,i inches, and zl z8 the edge adjacent tothe landl bars ofthe beam are drawn tightly together when the bolt is operated, and the colter is tightly grasped between them. In addition to this ,clamping action the colter has a positiveI bea-ring above and below upon the clampingiron itself. The mold-board E will now be described. It is hinged to the .land-side by means of ears and a securing-rod, as clearly shown in Figs. 2 and. -Its front edge, e,'is made to project over the front edge of the land-side, as shown,in Figs. 1 and 3, in such manner as to protect the latter withoutinterfering with its own swinging movement. Its adjustment to cut a wide or narrow furrow is laccomplished by means of a threaded rod, el, :attached at one end to the mold-board, and.,

held at thev other by mea-ns of nuts in a slotted opening in the right-hand handle. By means of the slot the rod is enabled to adjustitself laterally in laccord-ance with the varying position ofthe mold-board--that is,

themold-board being caused to swing upon its pivots, it must necessarily move longitudinally and laterally. 4By adjusting the -nnts Fig. 6,' which is about one-twentieth of thel full size. The line z zl represents the extreme length of the moldboard, which, in a medium-sized plow, is two feet and six inches. The line z2 s3 represents the extreme width, whiehis eleven and one-half inches. The linev el z5 represents the part to which the land-side isattached, which isvten andfonehalf inches.v `-The line z3 ze represents the lower bearing edge` z-zf, the upper edge; and zil represent-s the curve ot' the linez5 el, which, at its deepest part, varies three-fourths of'an inch from a straight line between the points. The linesof curvature are'indicated bythe dotted lines z .el and z3 z5, thetiirst heilig concave with an extreme' depthot' three inches,

and the lat-ter convex with an elevation Qt' two inches. 'lhepoint G is also peculiar; 'in addition to the side piece g, it has also a penetrating portion, g1, the wing g3 of which'extends beyond'the line z3 e, Fig. 6, of the moldboard, as shown. The poi1it,has av concave curve on the liuc el z, so that lthe extended part z .el lies close to the -gr-ound,-as shown in Fig.` 5. The line el z, Fig. 6, represents the extreme width ofthe point, which, in la mcdiumfsized plow, is twelve inches. The line side, 'which .is twelve linches.,- 'lhe cxtreme concave curve upon the line el g'f'is onchalf air 'with light material.

inch. The mold-b0ard is connected to thel point by means of a link, g3, as shown in Fig. 4. The sole of the plow is bolted to the landside, and a rigid connection is made between it, the land-side, and the point by means of astrengthening -piece shown in Fig. 2. Ehe handlesare properly braced by iron rods, and

they are moreover provided with a bent bar,

I, bolted to the beam at its front end, and united .to them at its rear endby a curved rod, t', which curving-bar being somewhrt in the form of the arch connects the handles rigidly tothe beam.

By means ot' the peculiar construction de.

scribed, the plow possesses many marked' advantages, as follows: By constructing the beam of metal bars, and by arranging the handles as described, great strength is secured of the mold-board it is well adapted to clear itself, and it runs light and scours bright even in black sticky mud. From the peculiar oo nstruction of the point it is adapted to penetrate with a drawing cut', and consequently'it easily severs Iroots, dic., that it comes in contact-with. Moreover, as'the outer edge liesv tlat with the ground, thel point will not be inif until it is worn up tothe jured by wearing o line of the moldboard, although it-may require sharpening at times. y y

The drat't.attachment is simple and provided for easy adjustment, either laterally or \"ertic The mold-board, by means ot' its ad#- ally. justability, is well adapted for either cross or stubble plowing. The colter is doubly held, being secured by friction .between the bars and bythe arms of the .clampin g-iron. The. plow as and exceedingly effective in operation.

Having thus fully described my invention`,. fto secure by.

what I Yclaim as new, and desire Letters Pate-nt, 1s

-1. The combination of ithe beam A, conv the colter andA the purposev set structed as described, with clamping-iron, as and for forth. l

2. The draftdevice described, consisting of the threaded rod c, pivot-block' a, clevi's el, threaded rod c2, draft-hook o, and rod yc4, in combination, as'and for the purpose set forth.

3. In a hinged mold-board, the turned edge" e, adapted to cover the front -ed'ge ot' thc laudside, as described. 4. The Aresisting beam A, bent-arm fot' handle F, and, bracerod g, in combination with the hinged mold board and rod `c1, as described. 5. The plow-described, consi-sting ot' the beam A,h,andles, mold-board E, point G, eoltcr D, brace-rod I, and draft attachment, when combined as described,for the purpose set forth.` l

` BENGT C. BLOMSTEN. g

Witnesses; j OLAYroN L. HAYLEY,

From the peculiar shape a whole is simple in its construction l triangle, formed ot' the'

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