US1810051A - Railroad crossing gate - Google Patents

Description

o. o. LEES ET AL.

RAILROAD CROSSING GATE June 16, 1931 Filed July 14 14930 2 Sheets-Sheet l 'LMQGSI June '16, 1931. o. o. LEES ETAL RAILROAD CROSSING GATE Filed July 14, 1950 2 Sheets-Shet 2 Patented June 16, 1931 UNITED STATES amar OBED 0. LEES AND THOMAS J. FINN, or corona-us; onro; si rn tans Assm on r sail) FINN; ELLA s. BAILEY, EXECUTRIX 0F SAID THOMAS J. FINN, nncnnsnn RAILROAD CROSSING GATE Application filed July 14,

This invention appertains to new and useful improvements in railroad grade crossing gates, and more particularly to a gate of the motor operative type.

The principal object of the invention is to provide a railroad gate adapted to be actuated through the agency of a railroad block circuit.

Another object of the invention is to provide a railroad gate which will permit vehicles trapped on the railroad tracks to pass therethru. 3

During the course of the following specification, other important objects and advantages of the invention will readily become apparent to the reader.

In the drawings Figure 1 represents a side elevational view of the novel gate structure.

Fig. 2 represents a fragmentary top plan view of the gate structure.

, Fig. 3 represents a horizontal sectional View through the gate structure, taken substantially on the line 33 of Fig. 4.

r Fig.4 represents a vertical sectional View through the mechanism for operating the ate. b Fig. 5 represents a side elevational view of the trackway for the structure shown in Fig. 4.

Fig. 6 represents a fragmentary side elevational view of the governor.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents a raised base structure of circular formation, upon which the track 6 is mounted. The track 6 is of annular formation, and has inclined portions thereon, leading upwardly to risers 7 which 40 serve as abutments for the'oasters 8 on the bottom of the platform 9. This platform 9 is located within the cylindrical housing 10,

is suitably secured thereto and supports the motor 11. The armature shaft of the motor 45 11 is provided with a bevel gear 12 for mesh with the bevel gear 13 on thevertical shaft 14.

As clearly shown in Fig. 4, the track 6 is anchored to the base 5, by suitable anchors 15. The lower end of the shaft 14 bears 1936. sea-a mama. againstthe tiara-m9 preferably in the bear ing recess the -'e1n,'while the upper end thereof engages within'the bearing 16 on the cross ember 17 Numeral 18gener'ally refers to the goverl nor which includes the stationary collar 19 on the shaft 14 and theslid'able collar 2 0 hav ing the swivel ring 20a thereon. A pair of weight men'lbers 21 21 are provided, and between these weight members 21 21 and the stationary collar 19 and movable collar 20, link members 22 are provided." v

The swivel ring 20a carries pintles 23 whereby the yoke 24 is s'wivelly connected to the said collar. This yoke 24 has an elongated arm 25 extending upwardly from the same for pivotal'connection as at 26 to the bel lcrank 27. This bell crank'27 is located on thehorizontal shaft 28 which extends at its enfds beyond the outer side of the housing '10. The outer ends of the shaft 28 are se cured to opposite sides of the frame29,which framehas the railroad crossing gate 30 pm jectinglongitudinally therefrom. This gate bar 30 may be equipped with a suitable signal ligh't 31andi is also provided with a prop 32.

Xt'endingin an opposite direction from the gate'bar 30 and secured tofopposite ends of the shaft 28 are the bars 33 for supporting the counter balaheing weights 34.

It can how, be seen that when the track circuit of the railroad is closed to energize the motor 11', the motor will serve to rotate the shaft 14. As the shaft 14 rotates, the governor 18 will contract and draw down on the arm 25, thus resulting in the lowering of the gate bar 30 (see Fig. 4).

When the gate reaches a horizontal posi- V tion and is prevented by suitable stop means from lowering further,.the shaft 14 will continue to rotate, but with the governor fixed against further contraction, serving nevermoves to a position transversely of the roadway. Should a vehicle be trapped between the gate of a railroad crossing, the vehicle need only travel against the gate in its path. The gate will swing with the housing, with the caster wheels 8 riding against the inclined surfaces of the track 6, until they abut the risers 7. The wheels 8 need not actually engage the rise-rs 7, unless the gate bar is moved a distance of approximately 90. When the vehicle passes by the gate bar, the same will return back to a position transversely of the roadway by the descent of the caster wheels on the inclined surfaces of the aforementioned track 6.

While the foregoing specification sets forth the invention in definite terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described my invention, what we claim as new is 1. A grade crossing gate of the character described comprising a revolvable stand, a swingable gate bar mounted on the stand, a shaft mounted within the stand, a governor on the shaft, a connection between the governor and the gate bar, and a motor for operating the shaft.

2. A grade crossing gateof the character described comprising a revolvable stand, a swingable gate bar mounted on the stand, a shaft mounted within the stand, a governor on the shaft, a connection between the governor and gate bar, a motor for operating the shaft, and a platform on which the motor is mounted, said platform being secured to the stand, and a wheeled support for the said platform.

3. A railroad gate comprising a housing, a swingable gate bar carried by the housing, a lever projecting from the gate bar, a vertical shaft within the housing, a governor operated by the shaft, a motor for operating the shaft, a swivel on the governor, and a linked connection 1 etween the arm and the said swivel on the governor.

In testimony whereof we afiiX our signatures.

OBED O. LEES. THOMAS J. FINN.

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