US1209095A - Plow-foot. - Google Patents

Description

R. B. WILLIAMS.

PLOW FOOT.

APPLICATION HLED APR. 1, 1916.

1,209,095. Patented Dec.19,19l6.

Witnesses Attorneys RUIDIGILLE BURGOYNE WILLIAMS, OF BENTON, TEXAS.

rnounroor.

Specification of Letters Patent. Patented Dec, 19, 1916.

Application filed April 7, 1916. 1 Serial No. 89,620.

To all whom it mag concern: I

Be it known that I, RUDICILLE B. WIL- LIAMS, a citizen of the United States, residing atDenton, in the county of Denton and State of Texas, have invented a new and useful Plow-Foot, of which the following is a specification.

This invention relates to improvements in a plow or cultivator foot of that type designed to yield rearwardly when the point of the soil engaging device comes against an unyieldin obstruction.

One of 1e objects of the present invention is to provide means whereby the foot can be quickly adjusted 'angularly without requiring the use of any tool in order to loosen any of the parts, the means employed for holding the foot being simple, durable and efiicient and readily shlftable, the parts, however, being so constructed as not to move accidentally out of the positions to which they are adjusted.

With the foregoing and other objects in view which will appear as. the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings, Figure 1 is aside elevation of the device. Fig. 2 is a section on line AB Fig. 1. Fig. 3 is a section on line CD Fig. 2. Fig.- 4 is a section on line EF Fig. 3.

Referring to the figures by characters of reference '1 designates a standard having a rearwardly extending arm 2 provided with 7 an opening 3 in which is slidably mounted a stem 4 provided with a nut 5 at its upper end and which nut constitutes an abutment for one end of a coiled spring 6. One end of this spring bears against the nut, while the other end bears against arm 2, the spring thus exerting a constant upward thrust against the nut so as to yieldingly support the stem.

links by a transverse pin 22.

Extending rearwardly from the standard 1 close-to and under the arm 2 is a web 7 through which extends a pivot pin 8 having links 9 pivotally mounted therein. Another pin 10 extends into the links and constitutes means for pivotally connecting to the links a plate 11 from which projects an upwardly extending arcuate arm 12 having an arcuate slot '13. This arm has its side faces con verging upwardly, thus to constitute a wedge 14 and extending through the arouate' slot 13 is a bolt 15 which projects through the outer end portions of the links 9 and through washers 16 which are interposed between the links and the sides of the plate 1. Bolt 15 also projects through longitudinal slots 17 formed in links 18 which are extended along the outside of the links 9 and are pivotally connected, as by means of a bolt 19, to the upper end of a foot 20. This foot is pivotally connected to the lower 'end' of standard 1 by a bolt 21.

The lower end of stem 4 is arranged between the links 9 and is connected to said A spring 23 straddles and extends under the plate 11 so as to support said plate, the

sides of this spring being coiled about the pin 10, while the terminals of the spring are hooked into engagement with the pin 8.

Thusthe spring constitutes a yielding support for the plate 11 and exerts a constant upward pressure a'gainst'saidplate.

The outer face of each link 18 hastransverse serrations as shown at 24' and washers 25 are arranged outside of the links 18 and are likewise provided with serrated faces 26 designed to engage the serrations 24. Bolt 15 extends through the washers so as to hold them properly assembled with the links 18 and in order that the washers may be prevented from rotating on the bolt, each of them has an angular boss or extension 27 which projects into the adjacent slot 17, as shown particularly in Fig. 4. 7

It will be noted that plate 11 has a nose 28 extending rearwardly therefrom and which constitutes a finger piece whereby said plate can be pressed downwardly against the action of spring 23 when it is desired to adjust the parts.

It will be apparent that the wedge 14 is normally pressed upwardly between the washers 16 and thus serves to force the washers away from each other and against the links 9, with the result that said links will hold the serrated faces 24': of the links. 18 in engagement with the washers 25. Consequently longitudinal movement of the links 18 is prevented and, therefore, the

foot 20 will be held at a predetermined I caused by an unyielding object in the path thereof.

Should it be desired to adjust the foot to a different angle relative to the standard 1, it would merely be necessary to press downwardly on the plate 11 thus to withdraw the wedge from between the washers 16. The links 9 and links 18 can then be pressed toward the plate 11, thus disengaging serrations 24L from the washers 25. Consequently the links 18 can be shifted longitudinally to adjust the foot 20 to the desired angle after which, by releasing the,

plate 11, spring 23 will shift said plate upwardly automatically and cause the wedge 14 to enter between the washers 16 and thrust them apart, with the result that the serrations 24 will be forced into engagement with the serrated washers 25 and be held in such position, thus locking the foot against further movement relative to the standard.

Obviously by providing a structure such as described, a very quick and accurate adjustment can be effected and it becomes unnecessary to utilize a wrench o r-other tool in order to shift the parts relative to each other.

What is claimed is I 1 .1. The combination with a standard, a foot pivotally connected thereto, and yieldingly' supported links extending from the standard, of a' spreading element movably mounted between the links, links pivotally connected to the foot and extending along the outer sides of the first named links and having longitudinal slots, means connected to the first named links for engaging and fastening the slotted links tohold them against movement relative to the yieldingly supported links, and means for exerting a yieldingpressure 'upon the wedging element to force the slotted links outwardly into .engagement with the fastening means.

' 2.'The combination with a standard, a

foot pivotallyv connected thereto, and yield- 7 ingly'supportedlinks extending from the standard, of slotted links extending from the foot and along the outer sides of the yieldingly supported links, fastening devices normally engaging the outer sides of the slotted links, connections between the fastening devices and extending through the yieldingly supported links, and wedging means movably mounted between the yieldingly supported links for pressing the slotted links outwardly in engagement with the fastening means.

3. The combination with a standard, a foot pivotally connected thereto, and yieldingly supported links extending from the standard, of slotted links extending from the foot .and along the outer sides of the yieldingly supported links, fastening devices normallyengaging the outer sides of the slotted links, connectionsbetween the fastening devices and extending through the yieldingly supported links, and wedging .means movably mounted between theyieldingly supported links for. pressing the slotted links outwardly in engagement with the fastening means, said wedging means being yieldingly supported.

4. The combination with a standard, a foot pivotallyconnected thereto, and'slotted links extending from the foot,0f yieldingly .supported links extending from .the standard and between the slotted links, a connection between the yieldingly supported links, said connection projecting through the slots, clamping blocks carried by the connection for engaging the outer faces of the slotted links, a wedging element pivotally mounted between and supported by the yieldingly supported links and slidably mounted on said connection, and means for'yieldingly pressing the wedging element to active position to force the slotted links in engagement with the fastening means.

5. The combination with a standard, a foot pivotally connected'thereto, and slotted links extending from the foot and having serrated outer faces, of" yieldingly sup ported links extending from the standard and between the slotted links, a connection between the yieldingly supported links, said connectionextending through the slots,

fastening blocks mounted on the connection and adapted to engage the serrated faces of the slotted links,and spring pressed wedging means interposed between the links for holding said slotted links normally in engagement with the fastening'fblocks.

6. The combination with a standard, a foot pivotally connected thereto, and slotted links extending fromlthe foot and having serrated outer faces, of a yieldingly sup ported link between the slotted links and extending from-the standard, a connection extending through said interposed link and through the slots in the serrated links, a wedging element pivotally connected to the interposed link and slidably mounted on as my own, I have hereto aflixed my signasaio li cannfiction, fasteningdhloizks upon the ture in the presence of two witnesses. en s 0 t e connection an a apte to engage the serrated faces of the slotted links, RUDIGH'LE BURGOYNE WILLIAMS and yielding means for holding the wedg- Witnesses: ing element normally in active position. RoBT. CALDWELL,

In testimony that I claim the foregoing ROBT. LEACH. 7

Copies of this patent may be obtained for five cents each, by addressing the "commissioner of Patents, Washington, D. 0.

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