US375171A - Automatic gate - Google Patents

Description

(No Model.) I N. H. LONG.

AUTOMATIC GATE.

No. 375,171. Patented Dec. 20, 1887.

ATTORNEY.

. UNITED STATES PATENT OFFICE.

NATHAN H. LONG,- OF MUNOIE, INDIANA.

AUTOMATIC GATE.

SPECIFICATION forming part of Letters Patent No. 375,171, dated December 20, 1887.

Application filed July 20, 1885. Serial No. 172,033. (No model.)

To aZZ whom it may concern:

Be it known that I, NATHAN H. LONG, a citizen of the United States, residing at Muncie, in the county of Delaware and State of Indiana, have invented a new and useful Automatic Gate, of which the following is a specification, reference being had to the accompanying drawings, which form a part hereof.

' My invention relates to an improvement in gates; and it consists in the novel construction and arrangement of the parts thereof, which will be more fully hereinafter described, and particularly pointed out in the claims.

The obje'cts'of my invention are to provide a gate which is simple and effective in its construction and operation, strong and durable, easily. handled, readily understood, and comparatively inexpensive in manufacture. I attain these objects by the mechanism illustrated by the accompanying drawings, in which-- Figure 1 is a perspective view showing the gate closed. Fig. 2 isa perspective view showing the gate open, and Fig. 3 is a view of the tilting-iron which is a part of the lower hinge mechanism.

Similarletters refer to similar parts throughout the several views.

My improvements consist of a plate loosely attached to a. swinging hinge-rod and fulcrumed to a screw-bolt, the parts so arranged that the gate will be supported by the upper hinge. By this arrangement the gate will always stand horizontally and vertically true.

The posts A B G are set in the ground in their proper places, as shown. Near the top of post A is secured an cyebolt, D, which pro jects out several inches from the said post, and at the bottom of the said post is secured a pintle-bolt, 0, all as shown. A rod, E, is hooked over or secured to thetop bolt, D,and the lower end passed through the hole U in the tiltingplateT G V, and a head is forged on the lower end of the said rod, so that the weight of the gate rests entirely upon it.

The gate-frame K, which may be of any desired style, is provided (at the upper end ofthe rear end bar) with a pintle, X, and at the lower end with a forked bar, L, all as shown. The

upper pintle, X, is placed in the eye of the bolt D, and the forked bar L straddles the rod E and rests on the tilting-plate, all as shown. The curved stem G of the tilting-plate is placed over the pintle-bolt 0, so that it can turn on it without any weight of the gate resting upon said pintle, and the trip-rods M are secured in the dowuwardcurved end V of the said plate by passing the end of one through the hole J, placing the end of the other, which is formed with an eye, F, on the end H, and se' curing a nut, W, thereon, to prevent the said rod H from dropping off, as indicated in Fig. 3. The upper bolt, D, and lower bolt, 0, are set in the post A in such a manner that when the gate is closed the tilting-plate will rest with the end T against the post A, which allows the rod E, gate K, and post A all to stand perpendicular and parallel with each other. The trip-rods M are held in their places by being stapled to short posts N, all as shown. The wheel-irons I are placed on each side of the gate, as shown in Figs. 1 and 2. The crank ends 1 of the wheel-irons I are connected to the outer ends of the trip-rods M, and are adapted to draw the said rods backward and forward. The post 0 is set a proper distance from the post A, so that the gate will strike against it when it is opened, all as shown in Fig. 2.

The post B is provided with stops, as shown, so that the gate will strike against them when it is closed and against the stops on post 0 when it is opened, all as shown. The front bar of the gate is provided with a latch, P, which may be of diiferent design, if desired.

In operating the gate,if the vehicle is moving in the direction indicated by the arrow in Fig. 1, the wheel-iron is pressed down and the triprods move in an opposite direction, which turns the tilting-iron around, tilting the bottom of the gate outward and around to one side, causing the curved end G of the tilting iron to strike against the post, as shown in Fig. 2, which causes the gate to swing open. In closing the gate the opposite wheel-iron is pressed down and the tilting-iron moved back to its position, as shown in Fig.1. -As thus constructed, it will be seen that the weight of the gate is entirely upon the rod E, which swings from the upper bolt, D, and that the lower pintle-bolt, O, is only for the purpose of a fulcrum for the tilting-plate to throw the bottom part of the gate out of line or balance in opening and closing. It is understood by those familiar with suc devices that where the gate is hinged directly to the post the continual jerking of the triprods when the vehicle passes over the wheelirons loosens the hinges and soon renders the gate inoperative; but by the arrangement of the tilting-plate fulcrumed to the pintle-bolt O I am able to avoid this difficulty.

Having thus described myinvention, I claim the following and desire to secure the same by Letters Patent- 1. In an automatic gate, the combination of the headed rod E, the tilting-plate resting on the head of said rod E, the bolt D, from which said rod is suspended, the gate K, provided with pintle X and forked bar L, the said bar L resting on the tilting-plate and the gate being pivoted at the top to bolt D, the trip rods connected to the arm V ofthe tilting-plate, and the pintle O, on which said plate is pivoted, substantially as described.

2. In an automatic gate, the combination, with the post A, gate K, said gate hinged to the post at its upper end, and a bar, E, suspended from said hinge, of a tilting-plate suspended from the lower end of said rod and provided with a curved stern, G, having a perforation through which a pintle, O, secured to the post is passed, a bar, T, turned downwardly to form a stop to rest against the post, and a bar, V, turned downwardly and provided with a perforation to receive the end of the trip-rod M, said rod being provided with wheel-irons I, substantially as described.

NATHAN H. LONG.

\Vitnesses:

O. E. ADAMSON, VILLIAM H. M. COOPER.

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