US479927A

US479927A - Frederick wiard

Info

Publication number: US479927A
Authority: US
Publication date: 1892-08-02
Anticipated expiration: 1909-08-02

Description

(No Model.) n

F. WIARD PLOW.

No. 479,927. PatentedAug'. 2, 1892.

NITED STATES PATENT Ormes6 FREDERICK IVIARD, OF BATAVIA, NEI/V YORK, ASSIGNOR OF ONE-HALF TO JOHN WV. PRATT, OF SAME PLACE.

PLOW.

SPECIFICATION forming part of Letters Patent No. 479,927, dated August 2, 1892.

Application filed May 18, 1892. Serial No. 433,421. (No model.)

To all whom it may concern:

Be it known that I, FREDERICK W man, a citizen of the United States, residing at Batavia, in the county of Genesee and State of New York, have invented a new and useful Improvement in Plows, of which the following is a specification.

This invention relates to the means for securing the plow-point tothe standard of the 1o plow.

' Prior `to my invention the plow-point has been secured to the standard by one or more transverse bolts passing through holes in the two parts. In casting these parts of the plow I5 the cores for the bolt-holes are liable to become displaced`,in which case the holes do not properly register when the plow-point is placed against the standard, thus rendering it necessary to cut or elongate the bolt-holes 2o in order to bring the plow-point against the mold-board and form a close joint.

Hy invention has for its object to provide a reliable fastening whereby the point is rigidly secured to the plow-standard and firmly drawn against the mold-board, so as to form a close joint therewith Without requiring any fitting of the parts in case of imperfections in the same.

In the accompanying drawings, Figure l is a perspective view of a plow containing my improvement. Fig. 2 is a vertical longitudinal section thereof in line x, Fig. l. Fig. 3 is a fragmentary perspective view of the standard and the mold-board with the position of the plow-point indicated by dotted lines. Fig. et is a perspective View of the under side of the plow-point. Fig. 5 is a fragmentary longitudinal cross-section of the inclined portions of the point and standard on an enlarged scale.

Like letters of reference refer to like parts in the several figures.

A is the standard of the plow, having the usual concave front side; B, the landside; O, the mold-board secured to the front side of 45 the standard, and D the plow-point. The

rear edge of the plow-point forms a flush joint with the contiguous front edge of the moldboard in the usual manner, and is preferably formed on its under side with a curved rib CZ,

5o which bears against the front end of the standard.

E is the fastening-bolt, whereby the plowpoint is secured to the standard and which passes through a bolt-hole e, formed in the point, and an elongated opening or slot e', 55 formed inthe standard lengthwise of the plow.

The plow-point is provided on its under side, near its rear edge, with an inclined face or lu g f, Which bears against a correspondingly-inclined face or lugf, formed on the contiguous 6o front side of the standard. The standard is provided at the base of its incline with a recess or or socket f2, which receives the raised head of the incline of the plow-point when the latter is placed against the standard, while the plow-point is provided at the base of its incline with a similar recess, which receives the raised head of the incline of the standard, as shown in Fig. 2. The bolt-hole e and the slot e extend through the inclines 0f the 7o standard and the plow-point, and the incline on the standard trends rearwardly toward the front edge of the mold-board, so that upon tightening the nut of the fastening-bolt the incline of the plow-point is caused t-o ride/f, 5 down on the incline of the standard, thereby moving the plow point rearwardly, firmly drawing its rear edge against the front edge of theV mold-board and forming a close joint. Sutlicientplay or clearanceisleftfor the move- 8o ment of the contiguous inclines lengthwise on each other, as shown in Fig. 5, so that in tightening the plow-point its rear edge comes in contact with the front edge of the mold-board before the abrupt ends of the inclines strike the corresponding ends of the recesses f 2. The slot in the standard 'allows the necessary rearward movement of the point in drawing the same against the mold-board. It also permits a warped or imperfect point, which does 9o not accurately fit the standard, to be drawn against the mold-board, so as to form a close joint and a rigid fastening without requiring any fitting of the parts. The contiguous inclines of the point and the standard etfectually resist forward displacement of the plowpoint, as any such movement causes the inclines to wedge against each other and more tightly clamp the point against the standard.

I claim as my inventionl. The combination, with the plow-standard having an incline and an elongated opening arranged lengthwise of said incline, of a plowpoint provided on its under side with an i11- eline bearing against the incline of the standard, and a fastening-bolt passing through the point and the elongated opening of the standard, whereby the plow-point is drawn rearwardly upon tightening the holt, substantially as set forth.

2. The eombin ation, with the plow-standard having an inclined lug and an elongated opening arranged lengthwise in said lug7 of a plowpoint provided on its under side with an in- @lined lug bearing against the corresponding lug of the standard and having a bo1t-hole extendingthrough said lug and a fastening-bolt passing through said bolt-hole and the elongated opening of the standard, said inclined lugs being capable of lengthwise movement upon each other, substantially as set forth.

fitness my hand this 14th day of May, 1892. zo

FREDERICK WIARD. Vitnesses:

W. NV. GALLEN, C. W. HoUGH.