US165653A - Improvement in automatic gates - Google Patents

Description

Unrrnn LEl/VIS N. ALLENDORF, OF POUGHKEEPSIE, NEW YORK.

IMPROVEMENT IN AUTGWIATIC GATES.

Specification forming part of Letters Patent No. 5 65,653. dated July 20, 1875 application filed January 28, 1875.

To all whom it may concern:

Be it known that I, Lnwrs N. ALLENDORF, of Poughkeepsie, in the county of Dutchess and State of New York, have invented a certain new and useful Improvement in Automatic Gatesy-and I do hereby declare that the following -is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1. is a view of the gate when open. Fig. 2 is a view of the gate when closed. Fig. 3 is a view of the crank-tripping device.

Similar letters of reference indicate correspondin g parts.

This invention consists in the improvement of automatic gates, as hereinafter described, and pointed out in the claim.

In the drawings, A represents the gate, connected at its top to the post a by eye m and staple n, and at its lower end to an oscillating or swinging hingerod, c, which projects out from the inner side of the gate-post, and passes up through an eye, j, upon the lower end of the gate-bar b, and extends upward sufficientl y for the attachment of the trip and latch con nections. The elbowlatch, as shown at (Z, is connected to the upper end of the oscillating rod 0 by rod 0 and linlrf, said latch, when the gate is closed, falling down in a notched plate, I, secured to the inner side of the post 25. The crank-tripping device, which automatically operates the gate, is arranged upon each side of the same, and consists of a crank or bent rod, 7t, one end of which passes through an eye, 0, secured to a post, 7', driven in the ground, the other end passing through a slot formed in the lower end of a short post, p. This crank communicates with the oscillating rod 0 by rods and chains g g s, or other suit able means of connection, the rods g having suspended thereon a weight, a, the chains 8 passing over a pulley, i, secured to the upper end of the post p. The weight it serves thepurpose of keeping the crank-rod k in an upright position ready to be again acted upon by the wheel of the vehicle passing over it, as illustrated in Fig. 3 of the drawings.

The operation is as follows; hen the wheel of the vehicle strikes the rod 76 upon either side of the gate the oscillating rod 0 will be brought to an angle, or carried out of its vertical position, as shown in Fig. 1, which will raise the latch (Z, through the medium of the connecting-link 0, allowing the gate to swing by its own gravity in an opposite direction, and, when the opposite rod 70 is-reached, the position of the oscillating rod will be reversed, and the gate will swing to its closed position, when the latch (Z will drop into the notched. plate Z, and securely fasten the gate.

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

The gate A, hinged at its upper end to the post a, and at its lower end to the swinging or oscillating rod 0, which is connected with the latch 61 by means of rod 0, in combination with the operating mechanism, consisting of the crank-rod k, rod and chain connections 9 g s, and weight'u, substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my handthis 22d day of January, 1875.-

LEWIS N. ALLENDORF.

Witnesses: I

PAUL FLAGLER, J. D. WILBER.

4 Sheets--Sheet1- C. ARMS.

Pocket-Bonk. N0,165,654 Patentedluly20,l875.

u. PETERS, PHOTO-UTHOGIIAPNER, WASHINGTON. D. O.

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