US1597133A - Crossing gate - Google Patents

Description

2 Sheets-Sheet l1 CROSSING GATE Filed sept. 17. 1924 J. T. WILLIAMS Aug. 24 1926.

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1924 2 Sheets-Sheet 2 J. T. WILLIAMS CROSSING GATE Aug. 24 1926.

Filed Sept. 17

a (To: l w14 Patented Aug. 24, 1926.

UNITED STATES JOHN r. WILLIAMS, or sornrs, COLORADO.

CROSSING GATE.

Application filed September 17, 1924. Serial No. 738,170.

This invention relates to crossing gates, and it consists in the novel features hereinafter described and claimed.

An object of the invention is to provide a gate structure which is simple and durable, and adapted to be used at the intersection of a roadway, with a railway track.

A further object of the invention is to provide a gate panel structure including a series of lazy tong levers, and mechanica-l means connected with the operating motor and adapted to move the levers of the lazy tong structure to eHect the opening and closing of the gate as stated. i In the accompanying drawings:

Figure 1 is a side elevational view of the gate, showing the same partially closed, and with parts of the structure shown in section.

Figure 2 is a fragmentary transverse sectional view of the gate structure.

rllhe gate structure includes a supporting post 1, and a latch post 2. These posts are planted in the ground, one at each side of the roadway, and both of them adjacent a 4railway track. The post 2 is provided with a latch 4, of conventional form. Collars 5 are slidably mounted upon the post 1, and the terminal links of the lazy tong structure 6 are pivotally connected with the said collars. Links 7 are pivotally connected at one end with the post 1 and pivotally connected at their other ends with the intermediate portions of the terminal links of the strucn ture 6 which are connected with the collars 5. Angle members 8 are pivotally connected with the outer terminal links of the structure 6, and a coil spring 9 is interposed between the inner adjacent ends of the angle members 8. By the provision of the said coil springs, the angle members 8 may spread or move toward each other as the outer ends of the terminal links of the structure 6 move with relation to each other, during the opening and closing of the gates. Pins 10 pass l5 transversely through the post 1, at points spaced from the collars 5, and coil springs 11 are interposed between the pins 10 and the said collars, and are under compression with a tendency to hold the collars 5 spaced away from each other and the lazy tong structure 6 folded.

A bar 12 is mounted for longitudinal movement transversely of the post 1, and is provided at its under side with a set of teeth 13. One end of the bar 12 is pivotally con- 55 nected with the terminal links of the lazy tong structure 6, at the point where the said links are pivotally connected with each other.

A motor 18 is mounted adjacent the post 1, and its shaft 19 carries a gear wheel 20, 60 which meshes with a gear wheel 21, mounted` upon a stub shaft 22, journaled in parallel relation to the shaft of the motor 18.

A relatively broad gear wheel 23 is mounted upon the stub shaft 22, and meshes with a relatively narrow gear wheel 24: mounted upon a counter shaft 25 which is extended under the bar 12. The counter shaft 25 also carries a gear wheel 26, which may be moved into Vmesh with the teeth 18 of the bar 12. 70 The shaft 25 may slide longitudinally in its bearings, and is provided at a point between its ends with an singularly disposed pin 27. which is received in a spirally disposed groove 28, provided in a sleeve 29 which is held against rotation normally by a frictional mounting inthe bracket 29.

The shaft 25 is rotated by the motor and moved longitudinally, thus bringing the wheel 26 into engagement with the teeth 13 S0 ofthe bar 12. As the shaft 25 continues to rotate, the sleeve 29 is rotated when the pin reaches the end of the groove 28 and the bar 12 is moved longitudinally, whereby the links of the lazy tong structure 6 are moved 35 from collapsed to extended position across the roadway.

The tension of the spring 11 tends to move collars 5 along the post 1, for folding the lazy tong structure 6 into a collapsed condition.

Having described the invention, what is claimed is:

1. A crossing gate comprising a post, sleeves slidably mounted thereon, springs attached at one end to the post, and bearing at their outer ends against the sleeves` a lazy tong structure having its terminal links pivotally connected with the sleeves, and a bar mounted for movement transversely of the post, and being pivotally connected at one end with the terminal links of the lazy tong structure, at the point where the said links are pivoted to each other, and means for moving the bar.

2. A crossing gate structure comprising a post, sleeves slidably mounted upon the post, spring means for holding the sleeves spread with relation to each other, a lazy tong structure having terminal links pivotally connected with the sleeves, al loarrv pvotally connected With the lazy tong,- structure, means for moving the bar, to operate the lazy tongs, angle members pivotallyv connected with other terminal li'nlsrof'the lazy tong structure, and having end portions disposed toward each other, and a spring Connecting thesadencl portions ofthe angle members l0 together.

In testimony whereof ax my signature.

TGI-IN T. WILLIAMS.

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