US876698A - Safety means for locomotive turn-tables. - Google Patents

Description

PATENTED JAN. 14, 19Q8. Jr W. DE LONG.

2 SHEETS-SHEET 1.

APPLI OATIQN FILED JUNE 14,1907.

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. S AFETY MEANS FOR LOGOMOTIVE TURN TABLES.

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No. 876.698. I PATENTED JAN. 14', 1908.

*J. W. DE LON-G. SAFETY MEANS FOR LOOOMOTIVE TURN TABLES.

APPLICATION FILED JUNE 14.1907.

2 SHEETS-SHEET 2.

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JOHN w. DE LONG, or IRONTON,

OHIO, ASSIGNOR OF ONE-THIRD TO HATTIE KETTERER, OF

RUSSELL, KENTUCKY.

SAFETY MEANS FOR LOCOMOTIVE TURN-TABLES Specification of Letters Patent.

Patented Jan. 14, i908.

Application filed June 14 1907. Serial No. 379.091.

T 0 all whom it may concern:

Be it known that 1, JOHN W. DE Lone, citizen of the United States, residing at Ironton, in the county of Lawrence and State of Ohio, have invented certain new and useful Improvements in Safety Means for Locomotive T urn-Tables, of which the following is a specification.

This invention aims to devise a novel means forlimiting the movement of rolling stock and particularly to prevent a locomotive engine from passing from the main line or branch into the pit provided with a turntable when the latter is moved so as to throw the rails mounted thereon out of line with the rails of the main track.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings.

WVhile the invention maybe adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in which:

Figure 1 is a top plan view of a turntable and terminus of a branch or main railway provided with safety appliances embodying the invention. Fig. 2 is a view similar to Fig. 1 showing the position of the checks upon the rails of the main or branch line when the turntable is moved to throw the rails carried thereby out of line with the rails of the cooperating track. Fig. 3 is a transverse section on the line 0cm of Fig. 2 looking in the direction of the arrows. Fig. 4 is a central longitudinal section on the line -'y of Fig. 1. Fig. 5 is a detail perspective view of a check.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters. I

The turntable 1 may be of the usual construction arranged to operate in a pit 2. A rod or bar 5 mounted to slide in bearings 6 se cured to the cross ties 10 is provided at the end adjacent to the turntable with a roller or wheel 3 mounted upon a pin 4, said rod or bar being normally pressed towards the turntable by means of a spring 9 mounted. thereon and confined between one of the bearings 6 and a cross head 13 secured to said rod. The roller or wheel 3 is adapted to engage with an edge of the turntable 1 when the latter is in normal position that is with its rails in line with the rails of the terminal portion of the track leading to the turntable. Under normal conditions the spring 9 is compressed by the action of the turntable upon the rod or bar 5, the roller or wheel 3 relieving friction between the parts 1 and 5.

Chocks 14 are provided for the rails 15 of the track leading to the turntable and are carried by arms or bell cranks 7 which are pivoted at their elbows to cross ties or other supporting means of the track. The horizontal arms of the bell cranks 7 have connection with the cross head 13 so as to move therewith and cause the checks 14 to move towards and from the rails 15. The horizontal arms of the bell cranks extend beneath the rails 15 so as to be out of the way and not interfere with traflic. Each check 14 is formed with a cross head 8 which extends along the outer side of the adjacent rail and has adjustable connection with the longitudinal arm of the supporting bell crank 7 a set screw 11. securing the chock to its carrying arm in the adjusted position as when the turntable is moved to throw its rails out of line with the rails 15 upon the rod or bar 5 is released and the spring 9 being relieved of compressive force expands and moves the rod or bar 5 forward or towards the turntable and operates the bell cranks to throw the checks 14 over the rails 15 so as to arrest forward movement of a locomotive or other rolling stock when approaching the turntable. When the rails of the turntable aline with the rails 15 the rod or bar 5 is moved outward or away from the turntable thereby compressing the spring 9 and operating the bell cranks 7 to throw the checks 14 outward so as to offer an unobstructed passage to the locomotive or car advancing to the turntable to be reversed or switched as the case may be. The inner sides of the cross heads 8 of the ehocks are shaped to conform to the outline of the sides of the rails 15 so as to fit the same closely and form a brace to sustain the shock incident to rolling stock striking the checks 14.

The invention may be adapted to turntables of any nature whether designed either for reversing an engine or car or for switching the same to a branch line or siding. The safety appliances are automatic in action being actuated by the turntable the arts being so arranged that when the turntab e is moved from a normal position the chocks are thrown over the rails to obstruct and arrest the advance of a locomotive engine and when the turntable is in normal position the chocks are thrown out of the way to permit a locomotive engine to pass without entrance upon the turntable. The device is exceedingly simple and effective and reliable since it does not depend for its operation upon any care or attention upon the part of an operator, its action being wholly automatic and governed by the position of the turntable.

Having thus described the invention, what is claimed as new is:

1. In combination with a turntable, and a track terminal cooperating therewith, chocks for the rails of the track terminal, movable supports for said chocks, and a spring actuated rod or bar connected with said movable supports and adapted when held under restraint by the turntable under normal conditions to throw the chocks clear of the said tracks, and when released from the restraining influence of said turntable to throw the chocks in position upon the said rails to arrest the movement of rolling stock towards the turntable.

2. In combination with a turntable and a cooperating track terminal, pivoted supports of bell crank form, chocks carried by one arm of said pivoted supports, and a spring actuated rod or bar having connection with the other arm of said pivoted. supports and adapted to throw the chocks clear of the rails of the track terminal when the turntable is in normal and to throw said chocks across the path of said rails when the turntable is moved from the given position.

3. In combination of a railway track, 0 positely disposed pivoted bell cranks, choc s supported by the longitudinal arms of said bell cranks, a spring actuated rod or bar arranged medially between said rails, a cross head applied to said rod or bar, and means connecting the ends of the cross head with the horizontal arms of the aforesaid bell cranks.

4. In combination with a turntable, a track terminal, a spring actuated rod or bar arranged medially between the rails of the track terminal and adapted to be engaged by the turntable and subject its actuated spring to tension under normal conditions, oppositely disposed bell cranks having their horizontal arms connected with a spring actuated rod or bar, and chocks supported by the longitudinal arms of said bell cranks and held clear of the rails of the track terminal when the rails of the turntable aline with the rails of the track terminal, and said chocks being thrown across the path of the aforesaid track terminal rails when the turntable is moved from a normal position.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN W. DE LONG.

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