US417118A - Farm-gate - Google Patents

Description

(N0 Model.)

R. THOMPSON. FARM GATE.

No. 417,118. Patented Dec. 10, 1889.

' UNITED STATES PATENT OFFICE.

ROBERT THOMPSON, OF )VHITEVATER, WISCONSIN.-

FARM-GATE.

SPEGIFICATION forming part of Letters Patent No. 417,118, dated. December 10, 18189.

Application filed October 3, 1889, Qerial No. 325,356. (No model.)

To all whom it may concern.-

Be it known that I, ROBERT THOMPsON, of

\Vhitewater, in the county of VValworth, and

in the State of Visconsin, have invented certain new and useful Improvements in Farm- Gates; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to farm-gates; and it consists in certain peculiarities of construetlon, as will be fully set forth hereinafter and subsequently claimed.

In the drawings, Figure 1 is a perspective view of my improved device open. Fig. 2 is a side elevation thereof closed.

A B represent the posts of my gate, the post A having secured thereto one or' more latch-plates C,'only one being shown in the drawings. The latch-plate consists of a plate of approximately oval shape, or like the vertical section of a cone, with rounded base, and provided with a vertical central slot at and a base-notch b. The rear side of this plate is furnished (opposite the points marked 0 c c in Fig. 1) with sharp projections designed to enter the post and hold the plate steady, the plate being secured in position by means of the pin, nail, screw, or bolt (Z. By loosening the part (Z the projections c of the plate C may be withdrawn from the post A and the plate raised or lowered, (by means of its slot (1,) if required, at any time, and then said projections driven in again by a blow on the said plate and the part (I again tightened to place.

I) is the upright of the gate proper, and is provided near its upper and lower ends with pulleys or rollers E F, the shanks c f of which are passed through said upright, and their projecting ends screw-threaded and secured by nuts, as shown.

G is an eyebolt whose shank is driven into the post B near its lower end.

H is a bar set obliquely to the upright D, and secured thereto by a bolt or pin 7L, passing through said upright and into the adjacent end of said bar, and projecting beyond said upright to form a bolt for engagement with the described notch 11 in the base of the plate C. The lower end of this bar H is provided with a hook g, connected to the described eyebolt G, forming a hinge therewith and having a plate or shank i, secured in any suitable manner (as by bolts, as shown) with said end of the bar II.

1 J are other ey bolts (or hooks) having shanks with screw-threaded ends, which pass through the post B near its upper and lower ends, and are thence fastened by nuts, as shown, about on aline with the shanks of the pulleys or rollers E F, and these eyebolts or hooks I J engage with UJ-links j j, from the other ends of which wires K M extend, passing around the pulleys or rollers E F and back to the bar H, the upper wire K extending back of the center of said bar H and being fastened to an eye or staple k on top of said bar, while the lower wire M extends to an eye or staple m on the under side of said bar at a point forward of the staple 7c, and preferably forward of the center of said bar.

The front post A is provided with a series of eyebolts or hooks n n or, intermediate the rollers E F, and the rear post B with a like series 0 0, all preferably having screwthreaded ends and securing-nuts; but the post B may have one less of said intermediate eyebolts than the post A, the said eyebolts 71 0 being connected by guys of wire N N, but there being preferably one guy 0, extending from an eyebolt n to the described hook g on the bar H, instead of to an eyebolt on the post B, as shown in Fig. 2. In addition, another wire guy L extends from the eyebolt I at the top of the rear post B to a staple p on the upper side of the bar II, back of the staple 70. I have shown plain wire in any drawings; but barbed wire may be substituted therefor, if preferred, in whole or in )art. 1 The operation of my device will be readily apparent from the foregoing description of its construction. \Vhen the gate is closed, the bolt it rests in the. base-notch b of the plate C. The wires K M are tightly stretched, so that the moment the said bolt is released from its notch there is an upward strain or tendency at the front of the gate, which rises automatically to the position shown in Fig. 1, and can be readily swung'on its one hinge G g, in or out. To close the gate, itis only necessary to depress it until the bolt It strikes one of the curved side edges of the oval plate 0, which will guide the bolt (with slight additional pressure) to the notch 11. The rollers E F and (II-links j diminish friction and keep the wires K M from prematurely wear ing out.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a gate, the combination of a stationary post, a movable upright carrying rollers, a bar rigid with said upright and hinged to said post, and tightly-stretched wires extending from the post to and around said rollers and back to said bar, whereby the front end of the gate will automatically rise when released, substantially as set forth.

2. In a gate, the combination of a stationary post having a series of eyebolts or hooks projecting therefrom, with a movable upright having rollers or pulleys near its ends, an intermediate oblique bar hinged to one of the eyebolts of the post, and tightly-stretched wires extending from the upper and lower eyebolts on said post around said rollers and baclrto said bar, substantially as and for the purpose set forth.

3. In a gate, the combination, with station.-

ary front and rear posts, of an approximately oval lateh-plate adjustably secured to the front post and provided with a base-notch, a movable uprighthaving a bar hinged to the rear post and provided with pulleysat each end, tightly-stretched wires passing around said pulleys and connected to the rear post and the bar, and a bolt projecting from the upright for engagement with the base-notch of the latch-plate, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Whitewater, in the county of \Valworth and State of \Viscousin, in the presence of two witnesses.

ROBERT THOMPSON. Witnesses:

SAMUEL KIRK, HENRY HEADY.

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