US767748A - Railroad cattle-guard. - Google Patents

Description

No. 767,748. PATENTED AUG. 16, 1904, G. W. GWYN, J. TRAYLOR & R. ROBBINS.

RAILROAD CATTLE GUARD.

APPLICATION FILED AUG. 17, 1903.

2 SHEETSSHEET 1.

N0 MODEL.

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NVE/VTORS No. 767,748. PATENTED AUG. 16, 1904. G. W. GWYN T. TRAYLOR &'H. R. ROBBINS.

RAILROAD CATTLE GUARD.

APPLICATION FILED AUG. 17, 190 3.

2 SHEETS-SHEET 2.

10 MODEL.

lNVE/V 7085 Q 240 I 9. "I a;

tlorney UNITED STATES Patented August 16, 1904.

PATENT QFFICE.

GEORGE W. GVVYN, JOPHIS TRAYLOR, AND HAMAN R. ROBBINS, OF SMYRNA, TENNESSEE.

RAILROAD CATTLE-GUARD.

SPECIFICATION forming part of Letters Patent No. 767,748, dated August 16, 1904.

Application filed August 1'7, 1903.

To all whom, it may con/00772 I Be it known that we, GEORGE 'W. GwYN, JorHIs TRAYLOR, and HAMAN R. ROBBINS, of Smyrna, in the'county of Rutherford and State of Tennessee, have invented certain new and useful Improvements in Railroad Cattle- (Jruards; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to an improved railroad cattle-guard, the object of the invention being to provide improvements of this character which will be operated by the weight of an animal, which will be absolutely sure in their operation, not liable to get out of order, simple in construction, and comparatively cheap to manufacture.

With this object in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a top plan view illustrating our improvements. Fig. 2 is a view in section showing the gate open. Fig. 3 is-a similar view showing the gate closed. Fig. 1 is a view in section on the line m w of Fig. 2, and Fig. 5 is a View in section on the line y 3/ of Fig. 3.

1 represents the rails of a track supported on ordinary ties 2, and 3 3 represent the end posts of a fence on opposite sides of the track.

4 represents a tubular shaft supported beneath rails 1 and mounted in any suitable bearings in cross-ties 5. Metal rods or pickets 6 pass through openings in tube 4: and are removably secured in place by nuts, hence permitting them to be readily replaced in the event of injury to any of them. Gear-Wheels 7 are secured on tube 4 by means of setscrews or otherwise, and short racks 8 mesh therewith. These racks 8 are preferably made on L-shaped castings, one member of which is toothed to engage the gear-wheels 7, and the other member has slots 9 to receive bolts 10, securing them to bars 11, said slots Serial No. 169,752. (No model.)

9 and bolts 10 permitting adjustment of the racks, so that they will properly mesh with the gears. The bars 11 are hinged at one end on a tie 2 and are connected by yoke-bars 12. These yoke-bars are bent to pass freely beneath rails 1 and support platforms 13 and 1 1, the former occupying space between rails 1 and the latter disposed outside of the rails. A coiled spring 15 is located under the platform 13 and seated in a socket in a tie 2 to normally hold the platforms elevated and the gate in its down or open position.

The operation of our improvements is as follows: When an animal steps on either platform, (13 or 145,) its weight will depress the platforms and bars 11, causing the downward movement of racks 8 and consequent rotation of the gear-wheels and tube 4 to bring the gate to a vertical closing position, preventing the passage of the animal between posts 3, and as soon as the weight is removed from the platform spring 15, assisted by the weight of the gate, will compel the gate to return to its closed position and the platforms to rise to their set position.

A great many different varieties of platform may be employed instead of the solid platform shown, and a great many changes might be made in the general form and arrangement of the parts described without departing from our invention, and hence we do not restrict ourselves to the precise details set forth, but consider ourselves at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of our invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a railroad cattle-guard, the combination with a hinged gate and gear-wheels secured to the hinged part of the gate, of bars disposed at right angles to the gate and pivotally supported at their outer ends, racks carried by the inner ends of said bars to mesh with said gear-wheels, and a platform connected with said bars.

2. In a railroad cattle-guard, the combina- I tion with a hinged gate and gear-wheels secured to the hinged part of the gate, of bars disposed at right angles to the gate and pivotally supported at their outer ends, racks at the inner ends of said bars to mesh With said gear-Wheels, tranverse yokes secured to said bars, and a platform secured to said yokes.

3. In a railroad cattle-guard, the combination With a hinged gate, and gear-Wheels secured to the hinged part of said gate, of bars pivotally supported at their outer ends, racks adjustably secured to the inner ends of said bars to mesh With said gear-Wheels, and a platform connected with said bars.

4:. In a cattle-guard, the combination With a hinged gate and gear-Wheels secured to the hinged part of said gate, of parallel bars pivotally supported at their outer ends, racks at the inner ends of said bars to mesh With said gear-Wheels, transverse yokes secured to said bars and projecting laterally beyond the same, a platform secured to said transverse yokes between the bars and platforms secured to said transverse yokes laterally beyond said bars.

In testimony whereof We have signed this specification in the presence of tWo subscribing Witnesses.

G. W. GWYN. J OPHIS TRAYLOR. H. R. ROBBlNS.

WVitnesses:

S. E. HAGEN, U. H. GAMBILL.

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