US706516A - Railway-gate. - Google Patents

Description

No.4 7os,5|s. v MmmmL Aug. l2," |902.

J, BowMAN.

RAILWAY GATE.` (Application med pac, 4.,/1901.,

vIO

UNITED STATES PATENT OFFICE.

JOHN BOW'MAN, OF lVESSlNGTON, SOUTH DAKOTA.

RAI LWAY-GATE.

SPECIFICATION forming part of Letters Patent N 0. 706,516, dated August 12, 1902. Application filed December 4. 1901. Serial No. 84,694. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOHN BOWMAN, a citizen of the United States, residing at Wessington, in the county of Beadle, State of South Dakota, have invented certain new and useful Improvements in Railway-Gates; and l do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to railway-gates; and it has for its object to provide a gate for use at railway-crossings which will be operated by an approaching train to move it in operative position and which after the train has passed will be automatically returned.

A further object of the invention is to provide such a specific mechanism connecting the track instrument with the gate as will insure a prompt and efficient operation of the gate.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in both views, Figure 1 is a sectional view taken longitudinally of a portion ofra railway-track at a crossing and showing the gate and its operating mechanism constructedand arranged in accordance with the present invention, the gate being shown raised. Fig. 2 is a view similar to Fig. 1 with the gate in lowered position.

Referring now` to the drawings, there is shown a portion of a railway-track at a crossing including a rail 5, and adjacent to this crossing is erected a post 6, upon which is pivoted a gate 7, one end of which is adapted to lie across the crossing, while the opposite end 8 is weighted,vso as'to hold the gate normally in raised position, as'shown in Fig. 1. At the lower end of the post is pivoted an angular lever 9, one endofwhich is connected with a crank-arm 10 of a shaft mounted in the post and on which the gate 7 is mounted, said connection being through the medium of a connecting-rod 11. When this angular lever is operated in one direction, the horizontal arm to which the rod 1l is attached is moved downwardly and actuates the crank arm 10 to move the gate into closed position. When the angular lever is released, the weights at the end 8 of the gate move the gate to its inoperative position.

To actuate the angular lever 9, a track device is employed and consists of two links 13 and 14, which lie in a common plane longitudinally of the track and which are pivotally connected at their mutually adjacent ends, the outer end of the link 13 being hinged to a plate 15, attached to one end of the ties, while the outer end of the link 14: is slidably disposed upon a plate 16 upon a different tie, and the connected ends of the links lie close against the` inner face of the rail 5 andare held normally projected slightly above the rail in a manner hereinafter described. It

will be seen that if a train passes along the v ing inclined slightly away from the post 6 rand being connected between its pivot and its upper end with the lower end of the vertical portion of` Vthe angular lever 9 through the medium otra connecting-rod 1S, and thus when a train runs upon the links 13 and 14 and depresses them the lever '17 is moved upon its pivot in a direction away from the post 6 and the lever 9 is actuated to lower the gate into operative position. As soon as the train leaves the links 13 and 14 the weight of the end S of the gate swings the gate to vertical position and operates the lever 9 to return `the lever 17 and raise the links 13 and 14. It will thus be seen that the train acts to shut the gate and that when the gate is released it automatically swings to its inoperative position.

What is claimed isf 1. In a device of the class described, the combination with a trackway anda rail thereof, of a supporting-post, a gate pivoted upon the post, links pivotally connected at their adjacent ends, oneof said links being hinged to a support and the other link being` free for slidable movement, said links being disposed to project with their connecting ends above a IOO rail of the trackway, a lever pivoted beneath the links and disposed with its free end therebeneath, said lever being inclined in the direction of sliding movement of the second link When the links are depressed, connections between the lever and the gate for levering the latter, and a connterbalance upon the gate for raising it and returning the lever and links.

I 2. The combination with a trackway and a rail thereof, of a supporting-post having a gate pivoted'thereon, an angular lever pivoted to the post, a shaft on which the gate is mounted, said shaft having a crank-arm, connections between the angular lever and the crank-arm for operating one from the other, links pivotally connected at their ad` jacent ends and adapted to lie With said adjacent ends above and close to the rail, one of the links having its outer end hinged to a support whereby when the connected ends of the links are depressed the other link will be moved bodily from the post, a lever pivoted beneath the links, said lever being inclined in the direction of sliding movement of the bodily-movable link when the links are de JOHN BOWMAN.

Witnesses:

J. A. MILBURN, I-I. A. PEIRCE.

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