US228720A - Allen l - Google Patents

Description

A. L. ANDBRSON Gar-Axle Box.

Patented .lune 15,1880.

",PETERS. PHOTO-LIMOGRAPHER. WASHINGTON. D. C.

ECMTED STATES PATENT Ormea.

ALLEN ANDERSON, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO JAMES H. FOOTE, OF SAME PLACE.

CAR-AXLE `Box.-

SPECIFICATION forming part of Letters Patent No. 228,720, dated June 15, 1880.

Application filed December 30, 1879.

To all whom it may concern Be it known that I, ALLEN L. ANDERSON, of Cincinnati, in Hamilton county, Ohio, have invented certain Improvements in Car-Axle Boxes, of which thefollowing is aspecification.

This invention relates to the use of frictionrollers in car-axle boxes; and it consists in certain devices and combinations of devices, more particularly set forth in the claimsat the end hereof.

The drawings represent a car-axle box containing my improvements.

Figure 1 is a vertical lateral section, showing the inner ends ofthe friction-rollers in elevation. Fig. 2 is a section through the axis of the car-axle. the main friction-roller, however, beingin elevation; and Figs. 3, 4, 5, and G are views showing other details.

A is the car-axle. B is the main frictionroller. It is so located above the axle A that the direct weight of the car is sustained by it. This main roller has a solid bearin g in the half-boxes b, which may, it desired, be made adjustable in any of the well-known ways.

C C are oil-cups formed in the main casing of the box, from which oil is supplied to the journals of roller B. c o are sliding covers to the oilcups C, held in place by pins c c', so that they may be slid to one side to fill the cups, but will not slide olf. D D are the auxiliary rollers, having their'bearings in the halfboxes d d, which are inclined, as shown, so as to be in the line of strain.

The rollers B and D D are made of larger diameter than the journal of axle A, so that they may revolve at a lower speed, thus having less tendency to heat, and they are of such width as to form a positive bearing throughout nearly the whole length of the axle-journal.

Upon one end of each auxiliary roller is a flange, E, and up against this flange is a ring, e, which forms the end bearing of axle A, and takes the thrust, and may be renewed when necessary. The end of axle A is provided with a ring, a, to form the bearingsurface and prevent wear of the axle, so that the wear is all on the rings a and e, which are renewable. The ring a is slightly smaller in outside diameter than the axle-journal, it being in- 5o tended for end bearing only.

These rings may be of any suitable material. I contemplate making a of gun-metal, and e e of steel; but other materials may be used.

F is a box-formed carriage fitting within the main casing. Its sides support the brasses in which the auxiliary rollers D have their bea-rings, so that these rollers move with the carriage. This carriage contains oil to lubricate rollers D, and the level of the oil is liin- 6o ited by an overiow-pipe, f, so that it will not rise and overflow the edges of the carriage. The pipe f may be placed at such a point that the oil will rise to the bearings of rollers D, as shown in Fig. l. and the outer casing is a rubber cushion, G, upon the outer side of carriage F, and one or more steel springs, H, below the same, for the purpose of taking up shocks, jars, 8vo., and ob; viating the evil effects of twisting strains. 7o

G and H may, if desired, both be of rubber or both of steel, or of other suitable material. The springs H are compressed to some extent when the box is put together on the axle, so that any wear of the bearings will betaken up 7 5 and a solid bearing preserved between the rollers and the axle. I also compress cushion G to some extent, to keep a close solid 'nearing on the end of the axle and to prevent loosening of nuts Q. 8o

The main casing is composed ot'two partsau upper part, M, which contains the bearings, &c., of the main roller B, aud a lower or hanging part, K. The outer side, K, of the latter is removable to give access to the inte- 8 5 rior of the box. fm n are flanges for use in the usual manner in keeping the box in place in the truck-frame. At the joint O of the two parts of the casing I have a lead packing consisting of two or more layers, so as to form a 9o tight joint, and also so that when the wear of the brasses, which is taken up by springs H, has become about equal to one of the layers of this packing, I can take out one of these layers, and by screwing the two parts of the 5 casing up together again restore the springs H to their original tension. When in this manner all or all but one ofthe layers of pack- Between the carriage F ing have been removed I put in new brasses and fresh layers of packing. At this joint O, on the lower part of the casin g, I form a iiange, l?, and I have the nuts S of such size that they fill the space in which they are located, and one side of them will be up against this flan ge, which thereby operates as a nut-lock, so that any loosening at this joint must occur by the bolts working up, and not by the nuts working down; and in putting the casing together the bolts are screwed down into the nuts instead ofthe nuts onto the bolts, as is usual. Instead ot' separate nuts for each bolt, a bar tapped at proper points may be used.

i is a packing-ring around the axle, to keep out dust, Snc. Instead of the ring, as shown, an ordinary stuffing-box or other method of packing may be employed.

7' is a packing for the same purpose at the opening for the overflow-pipe j', and I employ a packing for the same purpose at the joint between K and L.

It will thus he seen that the casing K L M is entirely dust-tight, by which I secure perfeet immunity from cutting or heating of the journals from this cause.

Having thus described a form of my invention, I claiml. In a car-axle box, the combination of a single main friction-roller, B, revolving in solid bearings above the axle, so as to take the direct weight of the car, two auxiliary bearing-rollers, D D, having their centers below the center of the axle, to provide a bearing against vertical and lateral strains, and anges E E on the ends of the latter, to provide a bearing against thrust, all substantially as described.

2. In a car-axle box, in combination with the main and auxiliary friction-rollers, the springs H, for taking up wear and keeping a solid bearing between the rollers and the axle, substantially as described.

3. In a car-axle box, the combination, with the main and auxiliary bearing-rollers, of the springs H, to take up wear in the bearings, and the packing O, in two or more layers, whereby, when the springs have become relaxed by such wear, they may be restored to their original tension by the removal ot' a layer of such packing, substantially as described.

4. In a car-axle box, in combination with the bearing-rollers D D and their iianges E E, the rings e e, to form renewable bearing-surfaces, substantially as described.

5. In a car-axle box, in combination with the bearing-rollersD D and their flanges E E, the removable ring a on the end of the axle, for the purpose of forming a renewable bearing-surface, substantially as described.

6. In a car-axle box, the combination of the auxiliary bearing-rollers 'D D and their carriage F, substantially as described.

7. In a car-axle box, in combination with the bearing-rollers D D and their carriage F, the cushions or springs G and H, to take up shocks and twisting-strains, 85o., substantially as described.

A. L. ANDERSON. Attest:

WM. S. BATES, J. H. BATES.

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