US1307545A - Consin - Google Patents

Description

W. FERRIS.

OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE CRANES AND THE LIKE.

APPLICATION FILED MAR. I. 1917.

' Patented June 24, l9l9.

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OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE CRANES AND THE LIKE.

APPLICATION FILED MAR. 1. I917- Patented June 24, I919.

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UNITED STATES PATENT OFFICE.

WALTER FERRIS, OF SOUTH MILWAUKEE, WISCONSIN, ASSIGNOR TO BUCYRUS COMPANY, OF SOUTH MILWAUKEE, WISCONSIN, A CORPORATION OF WIS- CONSIN.

OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE-CRANES AND THE LIKE.

Specification of Letters Patent. Patented J ne 24 1919 Application filed March 1, 1917 Serial No. 151,861.

To all whom it may concern:

Be it known that I, WALTER FnRRrs, a citizen of the United States, residing at South Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain new and useful Improvement in Outrigger Operating and Looking Devices for Locomotive- Cranes and the like, of which the following is a specification.

My invention relates to locomotive cranes and particularly to the outrigger operating and locking devices. It will be understood, of course, that the width of the supporting base of the locomotive crane is only the width between the rails and when the crane has to take up a load from a point at one side of the rails means must be pro vided to give it lateral stability to prevent its overturning. My invention concerns itself with an arrangement of outrigger beam whereby the crane may be supported. My invention deals particularly with the means for.carrying and manipulating this outrigger beam and provides a telescopic outrigger beam whereby when power is applied to propel such beam upwardly from the side of the. car, it automatically unfolds so as to give the desired maximum width of support. That is to say, I provide two beams, one within another, each one equal in length to the width of the car and pro vide means for feeding one of them forcibly out from the side of the car, and provide automatic means responsive to such movement for automatically feeding the inner section out beyond the car so as to give an increased radius of support. One object of my invention, therefore, is to provide an outrigger beam which will support the car upon which the crane is mounted. Another object is to providepower means for mounting such means. Another object is to provide means for automatically increasing such beam in length as it is fed out. Another object is to provide means for looking the beam rigidly to the car, so as to give a rigid support after the beam has been fed out. Other objects will appear from time to time in the specification.

The invention is illustrated more or less diagrammatically in the accompanying drawings, wherenr Figure 1 is a plan View of the portion of the car showing my device;

Fig. 2 is a side elevation of the parts shown in Fig. 1;

Fig; 3 is an end elevation;

Fig. 4 is a detailed section;

Like parts are indicated by like characters in all the figures.

A is a car body which is adapted to carry a locomotive crane mechanism not here illustrated since it forms no part of this part of my invention, although it is illustrated in one of my co-pending applications filed of even date herewith. Downwardly depend ing from this car body are side frame mempegs A A extending clear across the car A, A are a series of rollers extending across between the lower edges of the frame members A A the rollers A A being fixed in position and free to rotate, rollers A A being rotatably mounted on eccentric shafts A A which in turn are rotatably mounted on the frame members A A and are provided with lever arms A, A notched with hook-like notches A at the outer extremityr B is a hollow beam made up of two I- beams side by side. This beam is adapted to travel upon the rollers A A, being supported by them. B is a roller adapted to engage the upper surface of the lower flange of the beam B, this roller being supported on a bracket B projecting inwardly from the beam A The purpose of this roller, of course, is to prevent raising of the beam off its roller bearings, and one or more of these rollers. may be provided as the case may. be to limit any upward movement of the beam. The lower flange of the beam is provided on either side with teeth forming a ratchet B whereby power driven means pivoted on a lever C rotatably mounted on the frame A C is a dog pivoted on this lever having a weighted central arm C. This dog has extensions 0 C. IVhen in the position shown in Fig. 1, the extension C engages the rack so that the beam may be propelled outwardly by reciprocation of the piston. If, however, this dog is rotated by hand until the extension C engages the rack, it will propel the beam inwardly when the piston is reciprocated, the weighted end being suflicient to permit the piston to pull back and let the dog slide over the gears and sufficient to hold the parts together for the driving stroke. C is a link pivoted on the lever G and having a lug member C adapted normally to engage the swinging hook C on the, gear frame. C is a handle extending outwardly beyond such lug member whereby the link may be raised and disengaged from the hook at the will of the operator. When this is done the hook can be swung aside and the lug dropped into the hook A on the end of the eccentric lever, then when the cylinder is manipulated to draw in, the eccentric will be rotated. The roller A will be lifted, and the beam will be raised to take up all the slack at the car so that the workmen who are jacking up the outer end of the beam will have to waste no time in lifting up the beam before a tight connection is made between it and the car. By this arrangement, therefore, the connection between the beam and the car and between the car and the ground through the beam is made a rigid one since all back-lash and looseness is taken out.

D is a beam mounted to slide inside the main beam of the same length as the beam and adapted to travel along the bearings D D extending inwardly from the inside of the main beam and engaging the upper flange of the inner auxiliary beam. D is a chain anchored at one end at the center of the beam D. It passes outwardly around pulleys D D on one end of the outer beam B, the two pulleys being required so that the chain will run along the outside of the beam D. It extends then from the pulley D clear to the other end of the beam B where it passes over pulleys D D extends through a hole D in the web of the beam D to the adjustable hook D on the beam D whereby the chain may be taken up to avoid slack. Intermediate the two ends of the chain is a block D rigidly mounted thereon. This chain travels through holes in brackets D D extending inwardly from the side frame A, the holes being so small that the block D cannot pass through.

Obviously when the outer beam, outrigger or jack supporting member is fed out by the power cylinder, the inner member being contained within it and carried by it, will travel along with it, the chain passing through the perforations in the brackets until the block on the chain engages the bracket. Then the chain can go no farther and the further movement of the outer beam will cause the inner one to be drawn out by the chain. Owing to the mechanical arrangement the inner beam will move twice as fast as the outer beam so that at the end of the excursion of the outer beam, the inner beam will have traveled out to its full excursion. Thus by one movement of the operating mechanism the two beams are thrust out to their full extension so that the maximum lever arm is available for resisting any over-turning movement of the car.

It will be understood that my device is one of the parts of the locomotive frame. It will further be understood that it might be applied to many different types of locomotive frame. I have illustrated it as applied to one particular type, but I have only illustrated those features of that particular type which are necessary in order to understand the operation and device, and I wish therefore that my drawings be regarded in a very real sense as diagrammatic, and as only illustrating one exemplification of my invention, which invention might be used for other purposes in other connections, or might be very considerably modified without departing from the spirit of my invention.

I claim:

1. In a crane, an extensible jack arm supported by a roller and means for raising the axis of said roller to bring the upper surface of the jack arm against the frame of the crane to lock it in position.

2. In a crane, a jack arm operating mechanism comprising a roller supporting the jack arm, a shaft upon which said roller rotates, an eccentric bearing for said shaft and means for revolving the shaft and thereby raising the roller.

3. In a crane, an extensible jack arm, means loosely supporting said jack arm and means whereby the jack arm may be raised after it has been extended, to simultaneously take up the clearance in the supporting means and lock the jack arm in position.

at. In a crane, a supporting jack arm, power operated means for extending said jack arm and power operated means for raising the jack arm and locking it against the car body after it is extended.

5. A crane outrigger mechanism comprising a car body, a main outrigger, an auxiliary telescoping outrigger carried by the main outrigger primary mechanism for extending the main outrigger through a prede- 125 termined distance carrying the auxiliary outrigger with it through the same distance and secondary means reacting against the car body the main outrigger and the auxiliary outrigger whereby after the predeter- 180 mined distance is traversed the power derived from the primary mechanism acts to extend the auxiliary outrigger beyond the end of the main outrigger.

6. A crane outrigger mechanism comprising a car body, a main outrigger, an auxiliary telescoping outrigger carried by the main outrigger, primary mechanism react ing against the car body and main outrigger for extending the main outrigger through a predeteri'i'iined distance carrying the auxiliary outrigger with it through the same distance and secondary flexible means reacting against the car body the main outrigger and the auxiliary outrigger whereby after the predetermined distance is traversed the power derived from the primary mechanism acts to extend the auxiliary outrigger beyond the end of the main outrigger, the secondary means consisting of a chain with an enlarged link portion disposed to engage a projecting member of the main outrigger when the main outrigger is fully extended, to furnish leverage for the extension of the auxiliary outrigger.

7. A crane outrigger mechanism comprising a car body, a main outrigger, an auxiliary telescoping outrigger carried by the main outrigger, means for extending the main outrigger through a predetermined distance, a flexible connection between the car body, the main outrigger and the auxiliary outrigger and means for attaching said connection to the auxiliary outrigger, said means operative only after a predetermined movement of the outrigger to extend the auxiliary outrigger beyond the end of the main outrigger.

S. A crane outrigger mechanism comprising a car body, a main outrigger, an auxiliary telescoping outrigger carried by the main outrigger, means for extending the main outrigger through a predetermined distance and a flexible connection between the car body, the main outrigger and the auxiliary outrigger, a stop on said flexible connection and a stop on the main outrigger adapted to engage the stop on the flexible connection after a predetermined movement of the main outrigger.

9. A crane outrigger mechanism comprising a car body, a main outrigger, an auxiliary telescoping outrigger carried by the main outrigger, means for extending the main outrigger through a predetermined distance, means for extending the secondary outrigger after the main outrigger reaches its full extension, said means comprising a flexible connection, a stop thereon, and a stop on the main outrigger, said stops adapted to contact and to form an operating connection.

In testimony whereof I affix my signature in the presence of two witnesses this 28th day of February, 1917.

WALTER FERRIS. Witnesses:

MINNIE M. LINDENAU, RUTH E. CARLSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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