US992714A - Gang-plow. - Google Patents

Description

W. s. GRAHAM.

GANG PLOW- APPLICATION IfILBDTERM, 1910.

992,714, Patented May 16, 1911.

' WITNESSES: I INVENTOR ATTORNEYS 'tion for patent on gang plows, Serial No.

UNITED 'sTAipEs PATENT OFFICE.

WILLIAM S. GRAHAM, OF CANTON, ILLINOIS, ASSIGNOR TO PARLIN AND ORENDORFF COMPANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

GANG-PLOW.

Specification of Letters Patent.

Patented May 16. 1911.

Original application filed November 1', 1909, Serial No. 525,720. Divided and ,this application filed Febe mar? 24, 1910. Serial No. 545,655

To all whom it may concern:

Be it known that 1, WILLIAM S. GRAHAM,-

'the'followingfis a specification, reference being had to the accompanying drawings.

Thisinvention relates to gang plows, and has for its object to provide new and improved means whereby the cutting edges of the separate plowsmay be adjusted to proper working position and whereby the plows may be adjusted laterally to maintain them the proper distance apart.

This application is .a divisional application, having been divided out of an applica- '525,720, filed by me on November 1, 1909.

In the drawings :Figure l is a top or plan view of aportio'n of a gang plow, showing one of a seriesof low beams connected to the diagonal draft of one ofthe brackets by which the plow beams are coupled to the diagonal draft bar. Fig. 3 is a side view of the bracket shown in Fig. 2. Fig. 4 is a side view of the same bracket, showing also the plow beam in place thereon. 3

Referring to the several figures of the drawings, in which corresponding parts are indicated by like reference characters,10

indicates the draft frame of a gang plow, comprising the ordinary diagonal draft bar 11.

1213 indicate plow beams secured at their forward ends to the draft bar 11 as hereinafter described. In the construction shown, the beams 12-13 are spaced apart and held braced relative to each other by Spreaders-14; at intervais throughout their length. I

15 indicates a plow secured in any suitable manner to the rear ends of the beams 1213.

16- indicatcs a gage wheel mounted in any suitable manner below-the beams 12-13 and provided with a lever 17 by the movement of which the wheel is adapted to be adjusted up or down relative to the beams to lower or raise the plow.

Inasmuch as the devices so far described .may be of any approved type, it-is 'not bebar. Fig. 2 is. an enlarged detail, being a top or plan view lieved to be necessary to describe them further in detail herein, since they form no part of my present invention. Y

Referring now to the means employed for connecting the beams 12-13 to the diagonal draft bar, 18 indicates a triangular-shaped bracket connected at its front end to the draft bar 11 by a bolt 19.

20 indicates an opening in the bracket 18 in the form of an arc of a circle about the bolt 19 as center, through which opening 'and through a suitable hole in the bar 11 a bolt 21 is adapted to be passed, the bolts 19 and 21 being thus adapted to clamp the bracket 18 in position swuiig more or less to either side upon the bolt 19 as a pivot, the swinging of course being limited by the ends of the opening 20.

22 indicates a set-screw adapted to be set against the edge of the bracket 18 in any adjusted position of the bracket and adapted to hold the bracket firmly against swinging to the left in Fig. 1.

23 indicates a sleeve carried by the bracket 18 across its rear end, in the construction shown the sleeve being formed integral with the bracket. 24 indicates a pin extending through said sleeve, the bearing for said pin in the left-hand end of said sleeve, as shown in Fig. 2, being a circular bearing, and the bearing at'the right-hand end of the sleeve being in the form of a slot, whereby the pin has a limited up and down rocklng movement in said sleeve.

25-26 indicate set-screws screw-threaded into one end of the sleeve 23 above and below the pin 24, respectively, and adapted to j'ustcd position in the elongated bearing in that end of the sleeve, the screw-threaded opening in the sleeve 23 for the set-screw being indicated in Fig. 2 by 25. 27-28 indicate couplings pivotally mounted on the projecting ends of said pin 24, one of said couplings being bolted or otherwise secured v to each of said plow beams 121 3.

just the'eutting edge as desired.

hold the end of said pin in any desired adlowered relative to the beam 12, V

It will be understood that in case the beam is adjusted by means of the screws 2526 so as to change the position of the cutting edge of the plow, the same movement of the beam will throw the plow as a whole slightly to one side or the other, thus changing to that extent the distance between the plow adjusted and the adjacent plow or plows. In order to keep absolutely constant this distance and to maintain uniform the width in position bearing against the set-screw 22 by the tightening of the bolts 19 and 21. By.

the two adjustments described, therefore, the cutting edge of the plow may be accurately set and at the same time the plow kept in proper working position relative to the other plows of the gang. The adjustment first described may also be used to correct any improper adjustment of the position of the plows, of course arising from any other source as well as from an adjustment of the cutting edge of the plow.

I/Vhat I claim as my invention and desire to secure by Letters Patent is z- 1. In combination, a draft frame having a rear bar extending diagonally across the line of draft, triangular brackets having each a front edge adapted to conform to the angle of said rear bar and pivotally mounted near one corner upon said rear bar and adapted to be given a limited horizontal swing about the' pivot, means for clamping said brackets in adjust-ed position plow beams pivotally mounted on said brackets, and plows carried thereby.

2. In combination, a draft frame, a plurality of brackets each connected to said draft frame and adapted to be given a limited horizontal swing thereon, plow beams pivotall mounted on said brackets, plows carried by said plow beams, means adapted to hold said brackets against swinging, and set-screws carried by said draft frame and adapted to bear against said brackets in their adjusted position.

3. In combination, a draft frame, a plurality of brackets, a plurality of bolts each of which secures one corner of one of said brackets to said draft frame, each of said brackets being provided with a slot formed in an arc of a circle about said bolt as center, a second bolt passing through each of said slots and through an opening in said draft frame, by which bolts said brackets are adapted to be clamped firmly in any adfaceof said bracket, a plow beam secured on said pin and held against lateral swinging thereby, and a single plow carried by said plow beam, the bearing at one side of said bracket comprising a vertical slot and set-screws adapted to bear on said pin from above and below.

5. In combination, a draft frame, a bracket secured thereon and adapted to be given a limited horizontal swing, a pin extending transversely through hearings on the rear face'of said bracket, a plow beam secured on said pin and held against lateral swinging thereby, and a single plow carried by said plow beam, the bearing at one side of said bracket comprising a vertical slot and set-screws adapted to bear on said pin from above and below.

6. As a new article of manufacture, a bracket provided with two openings therethrough one of which is substantially in the form of an arc about the other, and provided with bearings at its sides for a transversely-extending pin, one of which bearings is in the form of a slot and is provided above and below with screw-threaded openings for the insertion of set-screws.

7. In combination, a bracket provided with two openings therethrouglr one of which is substantially in the form of an are about theother, bearings at the sides of said bracket one of which is in the form of a slot, a transversely-extending pin mounted in said bearings, and set-screws scre\\'- threaded'into said elongatedbcaring in contact with said pin and adapted to hold the same at any desired oint in said slot.

. WIL IAM S. GRAHAM.

. WVitnesses H. WV. JoNEs, WV. M. EAVES.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents, Washington, D. C.

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