US725350A - Rocker side bearing for railway-cars. - Google Patents

Description

PATENTED APR. 14, 190.3 w. H. MINER.

ROCKER SIDE BEARING FOR RAILWAYUARS.

APPLICATION FILED DBO. a1, 1902.

' no uonnn.

WITNESSES: :INVENTOIR.

UNITED STATES PATENT OFFICE.

WILLIAM HIMINER, OF OHIOAGO,ILLINOIS,. AssIeNoR TO W. H. MINER COMPANY, 013 CHICAGO, ILLINOIS, AICORPORATION on ILLINOIS.

ROCKER SIDE BEARING FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 72 5,350, dated April 14, 1 903.

Application filed December 31, 1902. Serial No."137. 274. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. MINER, a citizen of theUnited States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Rocker SideBearings for.

Railway-Cars, of,whichv the followingis a specification.

My invention relates to improvements in rocker side bearings for railway-cars, and more particularly to improvements upon the gravity-rocker side bearing forming the subject of United States Patents No. 646,986, of April 10, 1900, No. 668,642, of February 26, 1901, and No. 715,577, of December 9, 1902.

The object of my invention is to provide a rocker side bearing in which the base or bottom plate and reciprocating top plate are socured together by interfitting guides or flanges and which will at the same time admit of the rockers being inserted in position between the top and bottom plates after the top and bottom plates are assembled and locked together by their interfitting guides or flanges.

My invention consists in the meansI employ to practically accomplish this'object or resu1t-that is to say, it consists, in connection with the bottom plate, reciprocating top plate, and a pair of gravity returning rockersv provided with teeth on their lower bearingfaces, in providing the bottom 'plate with removable tooth-be'aring sections which may be inserted and locked in position after the rockers are in place, so that the teeth of the bottom plate will thus not obstruct the insertion of the rockers in position between the top and bottom plates. After the rockers are inserted in position the tooth-bearing sections of the bottom plate are inserted from" below and secured in place by any suitable means.

My invention further consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown or described.

In the accompanying drawings, forming a part of this specification, Figure 1 is a perspective view of a rocker side bearing em bodying my invention. Fig. 2 is a vertical section on the line 2 2 of Fig. 3. Fig. 3 is a vertical section on the line 3 3 of Fig. 1. Fig.

B is the bottom or base plate of the side bearing, the same or its tread Bbeingeurved on the arc of a circle whose center is the kin g- The bottom bolt on which the bolster turns. plate B is provided with upright side'guides 1), having projectingflanges b. p I

D is the reciprocating top plate 'of the side bearing, the same having downwardly-projecting side guides d and flanges d, th'e guides and flanges d cl interfitting and engaging with the guides and flanges III) to hol'dthe top and bottom plates together, while permitting the top plate to reciprocate in respect to the bottom plate.

The base or bottom plate B is provided with separate or removable tooth-bearing central sections 13 B which fitin suitable shouldered sockets or recesses 19 in the bottom plate, the toothed sections B having flanges Z2 with rounded corners b, so that after the sections B are in place they may be secured in posi- "on by simply upsetting the marginal edges 12 of the socket or recess b F F are the gravity returning rockers, the

same having alarge curved lower bearingface f and a small curved upper bearing-face -f forthe top'plate B and bottom plate D to 1 ride and bear against. H The lower curved bearing-face f of each of the rockers F isconcave or inclined, as illustrated in the drawings, to fit and correspond to the rounded or convex or double-inclined tread B of the bottom plate. Theouter end f of each rocker is somewhat larger in diameter than the inner end f thereofthat is to say, disregarding the concavity in the lower bearing-face of the rocker the same are somewhat tapering or conical to compensate for the curvature of the tread B about the king-boltas a center, as will be readily understood from the broken lines XXin Fig. 2. The lower large bearingface f and the upper small bearing-facef are concentric with each other, so that the turning of the rockers will not tend to lift, separate, or vary the distance between the top and I y bottom plates. The top plate D is provided with curved segmental sockets (Z to receive the upper small bearing-facesf" of the rocker. The side guides d of the top plate D are provided with recesses d to receive the projecting ends or studs f of the rockers and by which in connection with the curved sockets or bearings d the reciprocating top plate is connected to the gravity-rockers F F, and thus caused to return to position when the rockers return to their central or normal po sition by the gravity action of their large lower bearing-faces. The rockers F F are provided on their lower large bearing-faces ffwith central rows of teeth f f which mesh with corresponding teeth 19 b on the separate or removable sections 13 B of the base or bottom plate, and the marginal flange or web (1 at the end of the top plate D is notched or cut away at d to the extent necessary to permit the rockers to be inserted in position between the top and bottom plates when the rocker is turned into a horizontal position, as indicated in the dotted lines in Fig. 3, the removable tooth-bearing section B of the bottom plate being at this time not in position. After the rockers are this way inserted between the top and bottom plates and put in position then the separate or removable tooth-bearing sections B B are inserted and secured in position by upsetting the marginal edges Z2 of the bottom plate over the rounded edges of the removable sections 13 The top plate D is provided with a central transverse web (1 and the bottom plate with a central transverse web b. After the rockers are thus putin position between the top and bottom plates and the removable sections 13 of the bottom plate fixed in place all the parts of the rocker side bearings as a whole are securely united together so they cannot be separated.

I claim- 1. In a rocker side bearing for railway-cars, the combination with a bottom plate secured to the truck-bolster, of a reciprocating top plate, said top and bottom plates having interfitting guides and flanges, a pair of automatic gravity returning rockers interposed between said bottom plate and said reciproeating top plate, and provided with teeth on their lower bearing-faces, said bottom plate having separate or removable tooth-bearing sections adapted to be fixed in position after the rockers are in place to enable the rockers to be inserted in position between the top and bottom plates, substantially as specified.

2. In a rocker side bearing, the combination with a bottom plate and top plate provided with interfitting guides, of rockers interposed between the top and bottom plates and having teeth on their lower bearing-faces,

said bottom plate being provided with sepa-- rate tooth-bearing sections, substantially as specified.

3. In a rocker side bearing, the combination with rockers having toothed bearin faces, of a reciprocating top plate and a bottom plate having a separate tooth-section adapted to be fixed in place after the rock ers are in position, substantially as specified.

4. In a rocker side bearing, the combination with a. bottom plate having a socket to receive a separate tooth-section, a tooth-section fitting in said socket and secured therein by upsetting the edges of the socket in the bottom plate, a reciprocating top plate, and a pair of interposed rockers having teeth on their lower bearing-faces, substantially as specified.

5. The combination with a reciprocating top plate D, having notches cl at its ends, of rocker side bearings F having teeth on their lower bearing-faces, and bottom or base plate B having sockets b and removable tooth-bearing sections 13 having rounded edges 1) to adapt the same to be secured in place in the bottom plate by upsetting the marginal edges of the socket in the bottom plate, substantially as specified.

WILLIAM H. MINER.

Witnesses:

H. M. MUNDAY, EDMUND ADCOCK.

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