US461093A - Albert ii - Google Patents

Description

UNITED STATES PATENT OFFICE.

ALBERT II. CLEAVELAND, OF BELVIDERE, ILLINOIS.

GATE.

SPECIFICATION forming part of Letters Patent No. 461,093, dated October 13, 1891.

Application filed May 4, 1891. Serial No. 391,468. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT I-I. CLEAvE- LAND, a citizen of the United States, residing at Belvidere, in the county of Boone and State of Illinois, have invented certain new and useful Improvemeiits in Gates, of which the following is a specification.

The object of this invention is to construct a gate for farm use, consisting of suitable supports and rollers upon which the gate slides and levers for opening and closing the gate from a vehicle or from the ground.

I11 the accompanying drawings, Figure 1 is an isometrical representation of my improved gate. Fig. 2 is a vertical section through the post 9 and the supporting-rollers. Fig. 3 isa detached view of the pivotal connection between the bars 17 and 19, showing the stop forlimiting the upward movement of the bars.

The gate proper is composed of longitudinal bars 1, 2, 3, and 4:, held rigidly in position by third and the upper edge of the lower bar have like tongues.

My gate is supported free to slide on three rollers 8, journaled to the faces of two supporting-posts 9 and 10. The posts are on the side of the gate opposite to that on which the braces are secured, and the rollers are located one on each post between the lower pair of bars, and one between the upper pair of bars on the post 9. These rollers are grooved to correspond to the tongue in the bars, and the flanges of the roll being of greater diameter than the distance between the tongues of the adjacent bars the gate cannot accidentallybe displaced. Thus the gate will bear on the upper side of one or more of the rollers and on the lower side of the other, this depending upon the position of the gate. At the forward end of the gate at the limit of its forward movementI place a post 11, on the face of which is secured a metallic box-loop 12 of proper size to permit the entrance of the end of the second bar, which extends beyond the others to hold the gate firmly in position. This post, like the others, is on the side of the gate opposite to the braces.

To provide forthe opening of the gate from a vehicle, I set two posts 13 of considerable length one 011 each side of and in line with the roller-bearing post 9, and between these posts near to their tops I place a cross-beam 14. On the lower face of this cross-beam I fasten a casting 15, provided with two downwardly-extending ears having holes extending transversely through them, between which ears I pivot a casting 16, which forms the connection between two arms 17 and 18 forming a bell-crank. One arm of this bell-crank is of considerably greater length than the other, and this long arm is secured to the forward end of the gate by a pivoted connecting-bar 19. To the shorter arm 18 of the elbow-lever are secured, by twisted shackles 20, two leverbars 21, extending in opposite directions at right angles to the gate, and each is pivoted to one of the supporting-posts. From the outer ends of each of these levers is suspended a drop-bar 22 to bring it within easy reach of the operator.

To operate the gate, one of the drop-levers is raised or lowered, and turning the bellcrank lever thus on its pivot imparts motion to the gate through the connecting-bar. hen the gate is closed the connecting-bar and the tongue of the bell-crank are nearly in a straightline, their common joint being slightly above such a line, and forms a brace to hold the gate in a closed position. To hold the connecting-bar from jarring down and allowing the gate to slide open, which it mightbe caused to do by its weight, I fasten a spring 23 to the gate and to a point in the bar, and the elasticity of the spring overcoming the weight of the bar holds the gate in position.

To prevent the bar and long arm of the lever from throwing too far, I place a stop Bet on the upper edge of the long arm of the bellerank lever, which, overlapping the connecting-bar, forms a stop to limit the movement of these bars in an upward direction, and the spring holds the bar against this stop.

I claim as my invention 7 1. A gate capable of a sliding movement supported upon grooved rollers, two uprights, a connecting-bar between the uprights, a bracket secured to said connecting-bar, said bracket comprising a base secured to the inner side of the cross-bar and two ears extendin g therefrom provided with coinciding holes, a bell-crank leverpivoted in said bracket and having a pivotal connection with the gate through one of its arms, that portion of the bell-crank lever pivoted in the bracket being

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