US590877A - Danger-signal for railway-crossings - Google Patents

Danger-signal for railway-crossings Download PDF

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US590877A
US590877A US590877DA US590877A US 590877 A US590877 A US 590877A US 590877D A US590877D A US 590877DA US 590877 A US590877 A US 590877A
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signal
railway
crossings
danger
lever
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00Safety means for rail/road crossing traffic
    • B61L29/08Operation of gates; Combined operation of gates and signals
    • B61L29/18Operation by approaching rail vehicle or rail vehicle train
    • B61L29/20Operation by approaching rail vehicle or rail vehicle train mechanically

Description

(No Model.) i

0. P. BONNER.

DANGER SIGNAL 'FOR RAILWAY CROSSINGS; Y No. 590,877, A Patented' ept.v28, 1897. l

Q5 w l um AIL- Y@ c N FM n N W @Houma NITED i STATES PATENT Erica OSCAR P. BONNER, OF ORAVFORDSVILLE, GEORGIA.

DANGER-SIG NAL FOR RAILWAY-CROSSINGS.

SPECIFICATION forming part of Letters Batent N o. 590,877', dated September 28, 1897.

Application filed July 8,1897. Serial No. 643,851. (No model.) I

tion of the invention, such as will enable oth- A ers skilled in the art to which it appertains to make and use the same.

My invention relates to van automatic danger-signal for railway-crossings; and the object is to provide an audible as well as a visible signal for railway-crossings that' will be automatically operated by a railway-train approaching said crossing.

To this end the invention consists in the construction, combination, and arrangement of the device, as will be hereinafter more fully described, and particularly pointed ont in the claim.

In the accompanying drawings the same referencefcharacters indicate the same parts of the invention.

Figure 1 isa vside elevation of my improved danger-signal. Fig. 2 is a top plan view of the same.

1 and represent the rails; 3, a longitudinal horizontal lever fulcrumed on a bracket 4, fixed to a plate 5, secured to the ties and ex tending parallel with the rails.

The lever 3 is formed at its free end with a curved portion 6, which projects into the path of the car-wheels, so thatthe wheels in travcling over therails will come in contact with Vthe projecting portion of the lever to depress bell-crank lever is connected to a Wire rod 14,

whichpasses overa guide-pulley 15 and under a grooved pulley 16, and its opposite end is connected to the crank-arm 17 of a shaft 18, mounted in a post 19,1ixed at a point where the crossing intersects the railway-track. The opposite end of the shaft 18 is provided with an approximately horizontal arm 20, which extends through a vertical oblong eye 2l in the guide-bracket 22, fixed to the upper end of the post 19. The outer end of this arm is provided with a vane or any suitable form of visual signal, which normally remains in a horizontal depressed position when not in operation, butwhen thelever is depressed by contact with the wheels of the train the Wire rod 14. draws the arm 17 down, which throws the vane np into conspicuous View.

23 represents an alarm-bell mounted on the shaft 18, which serves to give an audible alarm when the signal is in operation. As the lever 3 is depressed to operate the signal when in contact with the car-wheels, the spring 7 restores the lever 3 to its normal position after a wheel has released it, and consequently it is depressed and raised to continually operate the signal during the passage of a train.

Although I have specifically described the construction and relative arrangement of the several elements of my invention, I do not desire to be confined to the same, as such changes or modifications may be 'made as clearly fall within the scope of my invention without departing from the spirit thereof.

Having thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Patent of the United States,

An automatic railway-crossing signal, comprising the lever 3, fulcru med on the bracket 4, fixed to the plate 5, and having its curved portion 6 projecting into the path of the carwheels, the spring 7 arranged to project said lever into the path of the car-wheels, the pin S fixed in the free end of said lever and extending through the guide-bracket 9, the bellcrank level' 11 having its horizontal arm pivoted tosaid pin, in combination with the shaft 1S, formed with. a crank-arm 17, connected to the vertical arm of said bell-crank lever by In testimony whereof I hereunto affix my @flexible rod, an alarm-bell mounted on seid signature in presence of two witnesses. shaft, and :L signal-vane mounted ou au ap- OSCAT. P POFR proximately horizontal arm of the shaft, and l A A J 5 :L guide-bracket 22 adapted to limit the molVitnesses:

Jsion of the horizontal arm of said shaft, sub- D. P. HENRY,

stantially as shown and described. S. Il. RHODES.

US590877D Danger-signal for railway-crossings Expired - Lifetime US590877A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015523969A (en) * 2012-05-23 2015-08-20 ジ・オハイオ・ステート・ユニバーシティ Lipid-coated albumin nanoparticle composition, method of making the same, and method of using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015523969A (en) * 2012-05-23 2015-08-20 ジ・オハイオ・ステート・ユニバーシティ Lipid-coated albumin nanoparticle composition, method of making the same, and method of using the same

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