US80858A

US80858A - Ensmore

Info

Publication number: US80858A
Authority: US
Publication date: 1868-08-11
Anticipated expiration: 1885-08-11

Description

1. H. DENSMORE.

Car Axle. l`

Patented Aug.i11,l 1868.

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MFEIERS. PHOTO-LHHOGRAPHER. WASHINGTON D C @uitrit tu'tt @anni ffirr..

J.' H.DNSMORE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND HIRAM FULLER, OF HALLOWELL MAINE.

Laim Patent No. 80,858, dated August 11,1868.

:turnover GAR-TRUCK.

'To ALL WHOM 4IT .MAY ooNoERN:

o Be it known that I, J. H. DENSMORE, of Boston, in'the county of Suiiolk, and State of Massachusetts, have inventedv new and useful Improvements in Car-Trucks; and I dohereby declare that the following isa full,

eleargand exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a longitudinal section of the sleeves through line A B, iig. 3.

Figure 2 is a similar section through line GD of g. 3. Figure 3 is a cross-section of the sleeves and axles, through the lino ET, iigs. 1 and 2. Similar letters of reference indicate corresponding parts. l The object of this invention is to provide a'means of preventing accident on railwaytrains 'through the breakage of an axle or axles. il

It consists in the provision of axle-sleeves properly affixed 'tothe framework of the truckyand enclosingy the whole length of theaxles betweent-hewheels, in such amanner that, should the axle ofV any one pair of wheels become broken,the wheels will still be held in place .onfthe rails, and continue injmotion with `suiicient steadiness until the train is stopped, thereby preserving the trainfrom accident.

'In the drawings, Gr are the ax-les,rand H the safety-'sleeves enclosing them without touching.

The sleeves are axed to safety-beams ff,.whieh'latter are aliixed to the main cross-timber, I, of the truck.

e are the housing-boxes or journals for the axle-ends, i u Y Figs. 1 and 2 exhibit diferent forms of the'safety-sleeves a'nd'the accessory parts. l

The sleeve shown at iig. 1 is provided'w'i/'th flanges, a, whieh'enolose the hub-extensions b, lwhich lattorare of greater diameter than the eye of thewheel, andthe-part of the axle fitting within them will b'e, consequently, larger than that within the eye 4of the wheel, so that the` .axle will be more liable to break at that point; but should it.. for any reason, break in that vicinity, (as at the point d,)the sleeve, at a, will act as a bearing `'for the hub-extension, I?, `and thus retain the wheel in a position torun 'on the rails.

In iig. 2, a more'siinple and nearly 'as efficacious form of tlfe sleeveends is shown.

In this forxn the flange 7' is straight, and its face abutting vagainst the proximate face of the hub of' the wheel, serves to retain the wheel in a vertical positioinwhen' the axle is broken'at the point el, as before; but when the axle isbroken within the sleeve, it will hold the wheel in the proper position, and with equal firmness as the form of sleeve shown in iig. 1. .i

The form of sleeve shown iin-iig. 1 is designed asa new eonstructiun, and is not adapted tothe axles and.

wheels already `in use; but that shown at figli!4 may be readily hpplied to the axles and wheels nw in use, for

the said 4sleeve is-made in` two equal parts, andprovided with llateral ianges or lugs, through whiohv screw-'bolts are fitted, to hold the said parts firmly together. Y A

The complete sleeve is then alixed to the sai`ety-bea1ns ff` by long boltshl, whichare provided with jamnutsV to hold bolts firmly aiixed to the safety-beams,whiletheir lower portions play freely through the guidelugs 11i of the sleeve. l Y o o Springs, c,.ot` metal or rubber, are aiiixed between the safety-beams and the sleeve, to keep the latter from undu-o motion; that is to say, to keep it from rising and touching the axle'while the wheels are running in their ordinary condition; l Y n The spaoe,7z, between the axles and the sleeves, (of both forms of construction,) is'forthe purpose of allowing a small amount of unavoidable vibration to take,place without contact of the sleeves and axles.

The cross-timber I is aixed tothe plates or'springs JJ, which latter are ailixed to Athe journal-boxes e of the-truck, and thus the truck is supported, while thoaxles remain unbroken; but should an axle break, the sleeve furnishes a bearing for the stump of the axle, as will be obvious.

I desire to be understood als not limiting myself to the precis@ construction of the truck as shown in the drawings, as lche same can be variously modied or changed without departing' from the brinciple of my invention.

i -I vclaim :is new, and desire to's'ecure by Letters Patent- The construction andanrangellent of safety-SleeVe. H, substantially as Shown and described, in combination with the axles and wheels of oar or tender-trucks, when the saidisleeves are made in twoparts and aixed to safety-beamsff. all as set forth.

- e J. I-L DENSMORE.

Witnesses:

CHAS. B. F. ADAMS, S'. AUGUSTUS ROGERS'.