US256405A

US256405A - Nventdr

Info

Publication number: US256405A
Authority: US
Publication date: 1882-04-11
Anticipated expiration: 1899-04-11

Description

(ModeL) 1 v A. SWEETLAND.

HINGE.

110.256. 105. Patented Apr. 11,1882.

Fl -E- WiTNEEEEE: INVENTEIRI .M L1AL M A UNITED STATES PATENT, OFFICE.

ALVAH SWEETLAND, on SYRACUSE, NEW YORK.

HIINGE.

SPECIFICATION forming part of Letters Patent No. 256,405, dated April 11, 1882,

Application filedJuly 15, 1881.

To all whom it may concern:

Be it known that I, ALVAH SwEE'rLAND, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Gate and Door Hinges, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to that class of hinges which automatically close the gate'or door by means of one leaf or bracket of the hinge riding on a cam or inclined bearing on the other V leaf or bracket.

Although hinges operating as aforesaid are very desirable, yet they have failed to comeinto extensive use, owing chiefly to the excessive cost of their manufacture and their liability of becoming clogged or broken by ice and snow gathering around the pivotal connection of the hinge.

It is to overcome these defects which myinvention has for its object; and to that end it consists in the peculiar construction of the constituent parts of the hinge,as hereinafterfully described,and specificallysetforth in the claim.

In the annexed drawings, Figure 1 is a side view of my invention as applied to a gate, showing the same in a closed position. Fig.2 is a view facing the post, and showing the operation of my improved hinge when the gate is opened. Fig. 3 is an enlarged inverted plan view of the male part of the hinge, and Fig. 4 is a top view of the female part of the hinge.

Similar letters of reference indicate corresponding parts.

A and B represent the two brackets or attaching-plates of the'hinge, the one constituting the male part of the hinge and being attached to the gate, and the other the female part of the hinge, attached to the post. The bracket A has on its outer or rear face arigid and solid horizontal plate, 8, from the center of the'bottom of which projects the gudgeon or pintle a. Around the said pintle, and concentric therewith, is a double-inclined track or cam, r, in the form of an annular rim on the'under side of the plate 8, the bottom edge of which rim- ("Model-l socket, b, in which is pivoted and adapted to slide vertically the pintle a of the bracket A.

The socketed plate I), I provide on the side farthest from its attaching-plate witha rigid'stud or pintle, upon which I mount detachably a roller, 0, having on the side adjacent to the plate a peripheral flange." The rim or cam a" of the bracket A rides upon the roller 0, and the engagement of the inner edge of said rim with the flange of the roller 0 serves to retain said roller upon its pintle. The shallow portion of the cam 1, being nearest the bracket or attaching-plate A, causes the gate by its gravity to normally stand in a closed position.

Upon opening the gate the deeper portion of the Cam 1" is carried upon the roller 0', thereby producing on the gate an upward pressure, which lifts the same bodily. Upon releasing the opened gate it descends by its gravity, and is simultaneously swung into a closed positifin by the travel of the cam rupon the roller 0. The double incline of the said cam allows the gate to swing in either direction,aud the junc- 'tion of'said inclines determines the movement of the gate to its closed position. In order to render the latter'more positive, I increase the angle of inclination at thejunction of the inclines.

It will be observed that by bringing the roller c to bear on the rim r between the gate and its pivot a most effective support for the gate is obtained and the pintle of the hingeisgreatly relieved of lateral strain.

My improved hinge is perfectly protected against snow and ice by the plate 8 and its rim 1 forming a cap, covering and shielding the pivotal connection.

It is obvious that by a slight modification in the form of the attaching-plates of the described hinge the same may be adapted to be applied to a door as well as a gate.

I do not claim broadly a hinge having one of its brackets riding on an inclined track or a cam on the other bracket, as I am aware the same is not new; but

I do claim as a specificimprovement in that class of hinges- The improved gate-hinge, consisting of the bracket B, having the socket I), provided on the side farthest from the attaching-plate with a rigid journal, the roller 0, mounted on said journal and provided with a peripheral flange In testimony whereof I have hereunto signed to on the side adjacent to the bracket B, the my name and affixed my seal, in the presence bracket A, having a solid plate, 8, covering of two attesting witnesses, at Syracuse, in the the socketb, and provided with the rigid down county of Onondaga, in the State of New ward-projecting pintle a and the concentric York, this 8th day of July, 1881.

double-inclined rim 0', the latter riding on the ALVAH SVVEETLAND. [L. 8.] roller 0 and engaging with its inner edge the Witnesses:

flange of said roller, all constructed substan- WM. 0. RAYMOND,

tially in the manner described and shown. 0. BENDIXON.