US948487A - Evener-coupling. - Google Patents

Description

G. F. THOMPSON.

EVENER COUPLING. APPLICATION FILED MAY 23, 1908.

948,487. Patented Feb. 8, 1910.

G O O l I I l O 4 7 l 2 /4E4H /4 GEORGE F. THOMPSON, OF- MINNEAPOLIS, MINNESOTA.

EVENER-COUPLING.

To all whom it may concern:

Be it known that I, GEORGE F. THOMPSON, of Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Improvements in Evener-Couplings, of which the following is a specification.

The object of my invention is to provide a coupling which will do away with the necessity of a hole through the center of the evener.

A further object is to provide an evener which will dispense with the stay straps usually required.

A further object is to provide an evener having means for holding it in a horizontal position on the pole and preventing it from tilting sidewise thereon.

A further object is to provide a support for the evener which will cause it to oscillate smoothly and evenly and prevent all danger or tendency of twisting.

My invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings forming part of this specification, Figure 1 is a plan view of a portion of a pole and evener with my invention applied thereto. Fig. 2 is a detail view showing the application of the evener to the pole. Fig. 3 is a sectional view illustrating the manner of mounting the evener on the pole. Fig. 4: is a sectional view on the line mw of Fig. 3 looking in the direction of the arrow. Fig. 5 is a. view of the under side of the pole and evener.

In the drawing, 2 represents a pole made in one piece or with the heel and straight portion made separately as described in my companion application herewith.

3 is the evener and 4 a coupling plate having a hollow tapered stud 5 depending therefrom and fitting within a hub 6 on the cap plate 7 a tapered socket 8 being provided in the pole to receive said hub. The cap plate has flanges depending on each side of the pole. A bolt 9 passes down through the stud and the pole and secures the coupling plate thereon but allows it to oscillate with the evener. The coupling plate rests on the top plate and has end portions projecting laterally on each side and secured to the evener. The bolt fitting within the hollow stud has its head in engagement with the evener coupling plate and a nut on its lower end in engagement with the bottom Specification of Letters Patent.

Application filed May 23, 1908.

Patented Feb. 8, 1910. Serial No. 434,603.

plate of the pole. The ends of the are provided with clamps 10 which rigidly secure the plate and the evener together. The evener is thus mounted on the pole without the necessity of forming a hole in the evener to weaken it, and the arrangement of the clamps on each side of the evener center makes the evener stronger than one made in the usual way, as the leverage from the ends of the evener to the clamps is less than it would be to the center of the evener. I can thus safely make the evener of lighter stock if desired.

By the use of the stud and hub connecting the evener with the pole I am able to avoid all Wear on the bolt 9 and prevent the evener from working loose and tilting sidewise on its pivot, a frequent occurrence in eveners as usually made. The coupling plate has a rearwardly projecting fiat flange 11 terminating in an upwardly projecting edge 12, and a plate 13 is secured to the pole by a bolt 14 and has a hook portion 15 overhanging the flange 12 and forming a guide therefor, the flange and the hook being curved to allow the oscillation of the evener on its pivot.

This construction insures a broad bearing surface for the evener coupling on the pole and prevents any twisting tendency of the evener, it being necessary to remove two bolts before the evener and coupling plate can be removed.

The rearwardly extending portion of the coupling plate and the hammer strap bearing thereon and the projection of said coupling plate in front of the socket permit free horizontal oscillation of the evener, but prevent a rolling forward movement.

I provide also on the bottom of the coupling plate on each side of the pole, lugs 16 which allow a limited oscillation of the evener but engage the pole irons and prevent the evener from swinging beyond a predetermined point. I am thus able to do away entirely with stay straps usually required with buggy pole eveners.

I claim as my invention:

1. The combination, with a pole having a tapered socket extending therethrough, of top and bottom plates for said pole, said top plate having flanges depending on each side of said pole, and a hub fitting withln said socket, an evener, a coupling plate adapted to rest on the top plate of said pole and having end portions projecting laterally on each plate 41' z tially as described.

2. The combination, with a pole having a socket therein, of top and bottom plates for said pole, said top plate having a hub fitting within said socket, an evener, a coupling plate resting on the top plate of said pole and having end portions projecting laterally on each side thereof, and means for securing said end portions to said evener, said coupling plate having a flat flange projecting rearwardly therefrom, and said flange having a broad bearing surface on said top plate and provided with a curved upwardlyturned rear edge, a hammer strap secured to said pole and provided with a hook at its forward end which overhangs the upwardly turned edge of said flange, and means for clamping said hammer strap on said pole in the rear of and close to the point where its hook engages the upwardly-turned edge of said flange, and said coupling plate pr0-' jecting in front of the socket in said pole and bearing on said top plate and whereby horizontal oscillation of the evener will be permitted but a forward rolling movement is prevented.

3. The combination, with a buggy pole having a socket therein, of top and bottom plates secured to said pole, said top plate having depending flanges on each side thereof secured to said pole, and a hub fitting within the socket in said pole, an evener, a coupling plate having a stud fitting within said hub, and means for securing said stud therein, said coupling plate having end portions projecting laterally on each side of said pole, and means for securing said end portions to said evener, and said end portions having depending lugs cast integrally therewith on each side of said pole and adapted when the evener is oscillated to engage the depending fianges of said top plate and limit the oscillation of the evener thereon, substantially as described.

In witness whereof, I have hereunto set my hand this 16th day of May 1908.

GEORGE F. THOMPSON.

Witnesses:

J. H. BALDWIN, J. A. BYINGTON.

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