USRE8087E - Improvement in car-axle boxes - Google Patents

Description

Reissued Feb. 1 9, 187s.

Gar Axle-Box.

J. STEPHENSON.

" thereon,

UNITED STATES PATENT OFFICE."

i JOHN srnrnnnsomor'xnwxonx, N. Y.

yllvlPRovraMl-:NT IN' cAR-Axi.; Boxes.

Specificationiformingmnrt of I Letters Patent No. 49,005, dated July 25, 1865; Reissue No. 8,08?, dated February 19, 1878,; application filed December 23, 1875.

DmsIoN K4.

"To all whom it may concern.' In order to lift out the check-plate it vis Beit known that I, JOHN STErrmNsoN, of New York,`1` fin the countyv of New York and State of lNew York, have invented certain new and useful Improvements in Car-Axle Boxes;

' and I do hereby declare that thefollowing is description thereof,

a full, clear, and exact y that will enable others skilled inthe art to which it appertainsto make and use the same,

reference bein ghad to the accompanying drawings, and to the letters' of reference-marked which form a part of this specification, in whichl- Y Y Figure 1 represents a vertical longitudinal section of a car-axle box to which my improvement has been applied; and Fig. 2, a horizontal longitudinal section of the same, taken through the line a: a: of Fig. 1.

In practice, the tendency of car-axles is to acquire end motion, causing'many evils.- This is unavoidable in the usual method of fitting up axles and boxes, because the small surfaces l afforded by the shouldersof journals soon wear into the brasses and accelerate the troubles. This is especially true with streetrailway cars, because their axles are `of small diameter, suilcient only for the dimension of the journal.

vMy method of preventing the end play of axles is not to depend on the shoulders of the A l journals, but to locate at the end of the axle,

within the box, acheck-plate, propcrly'secured,

against whichplatefthe thrusts of theaxle received. Y

The check' is located between the end of the axle and the frontwall of the box, and bears against the end of the axle and of the brass to. cheek the thrusts of the former, and

to conne'the latterl to its proper position'in' the box with respect to the journal.

The check-plate is formedof a plate of thin metal, of vsuitable form, the ends of which are lodged in grooves formed in the side walls of the axle-boxV at. or/near its front end, pr by shoulders formed thereon for they same purpose.

. 4.Y Aremo'xeable cheeknecessary that the roof of the axle be shortened, so as not yto extendfbeyond the end of the axle, or th .re/about. This permits-the check-plate to be lifted vertically from its seat,

and thus be removed from the box.

To prevent the check-platefrom rising out of its proper position, I make the box lid or 'door to pass over the upper edge of the checkplate, so that the check` cannot be removed without first displacing the door or lid of the box.

I claim as my invention- 1. yThe combination f a removable checkplate with a removable brass or bearing, and. a car-axle box, provided 'with shoulders or grooves formed in its sidewalls, for the reception of the ends of the check-plate, substantially as described. i 2. -A car-axle box having located at the end of the axle a plate to check the end motion of the axle,.each side edge of the plate resting in a groove, and prevented from rising out by the overhanging lid or door of the box.

3. A removable check-plate, in combination with a car-axle box provided with shoulders v or grooves formed in its side walls for the reception ofthe ends of the'check-plate, an axlejournal unprovided with a button or shoulder at its ,outer end, and a removable brass or bearing held in position by said check-plate, substantially asdescribed. 1

late and a removable brass, in vcombination -with a car-axle box provided with a shortened roof and door, substantially as and for the purposeset forth.

In testimony that I claim the'foregoing I have hereunto set my hand this .7th day of December, 1875.

' JOHN srEPHENsoN.

y Witnesses'z u i i Srmmr A. STEPHENsoN, v WILLIAM J. WALKER.

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