US1592808A - Lifting jack - Google Patents

Description

July 13 1926.

F. RICHARDsoN Y LIFTING JACK Filed Jan. 13, 1926 Subway Patented July 13, 1926.

UNITED STATES'y 1,592,808 PATENT OFFICE.

FOWLER RICHARDSON, OF LEBANON JUNCTION, KENTUCKY, ASSIGNOR F ONE-HALF TO LORENZO D. GREGORY AND CYRUS E. MORGAN, BOTH 0F ELIZABETHTOWN,

KENTUCKY.

LIFTIN G JACK.

i Application led January This invention relates to improvements in lifting jacks, having for lan object to provide a lifting jack so constructed as to render the same especially advantageous for use in replacing worn bearings in the journal boxes of railway cars, whereby the box maybe elevated independently vof the car Wheel and its axle inorder that ready access may be had `to thel worn bearing to effect itsr removal, and likewise, that a 'new bearing kmay be conveniently and properly placed therein. y

yAnother and equally important object of the invention is to provide the jack with a novel form of anchoring leg' adapted kto have adjustable bearing upon ,an` adjacent portion of a car wheel whereby a downward pressure willbe directed to that wheel in order that the ,same will beretained upon its rail` during the raising of the journal box for replacement of the bearing.

Othery objects of the inventionwill be in part obvious and in partk pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by persons skilled iny theart, I have in the accompanying illustrative drawings, and in the detailedy following description based i0 thereupon set out one possible embodiment `of the same. v

In these drawings z-r Figure 1 1s a side elevation ofthe improved jack having a portion of the anchor- 5 ing means broken away and shown in section and also, the anchoring leg engaged with the vinner peripheral surface of a car wheel, and l i f l Figure 2 is a side. elevation of the im- 0 proved jack having portion broken away.

. Having more particular referenceto the drawings, invconnection with which like .characters of reference will indicate corresponding parts throughout, it is to be ,un-

i derstood that my invention resides primarily in' thewprovision of an attachment forrailwayjacks whereby said jacks-will serve to direct a downward pressure or stress u on an adjacent portion of a car wheel wereby tol retain said wheel upon its track during the raising of the journal box thereof for `the replacement of bearings in the same. To this end, the invention therefore temp,risesE certain novel means Vwhia'e'li tha-.y

13, 1926. Serial No. 81,053.

be attached to various or different forms or designs of railway jacks now prevalent inthe art.

f For purposes of illustration, I have shown my invention as being applied to a form of railway .jack identified herein in its entirety -by the numeral l, said jack comprising a body or casing portion carried upon ay suitable base 2 while a screw threaded rod or shaft 3 extends from the upper e-nd of this body portion or casing and carries the usual saddle or head 4 thereupon adapted to be engaged under the object to be elevated or jacked. Suitable operating means are connected or connectible with the screw threaded rod or shaft 3 whereby to effect the raising and lowering` of the same together with the saddle or head 4.

The invention may be 'stated to comprise an outwardly curved anchoring leg 5 having an attaching bracket 6 pivoted to the inner end thereof as is indicated at 7 while the outer or free end of said leg 5 is provided with an outwardly curved or laterf ally offset foot 8 carrying upon its upper side and adjacent its point of jointure with the leg 5,-relatively spaced apertured ears 9 for a purpose which will be presently described.

When pivotally connected to the lower portion ofy one `side of the casing or body portion of the jack 1 as is shown in the Figure 1, the curved anchoring leg 5 is adapted vto be swung toward and away from lsaid body portion of the jack so that, at times, the outwardly curved or laterally offset foot 8' will be brought into engagement with a .portion of the inner peripheral surface of a` car wheel 10 resting upon the usual railway track l1, such car-wheel having its axle received in the usual journal box l2 in which bearings are arranged and retained.

In the replacing of worn bearings in journal boxes such as indicated herein by the numeral l2, it is the practice to eect such replacement while the railway cars are upon their tracks, such as indicated at 1l and therefore, the prevalent practice is to first connect or anchor the car wheel l0 to its particular track 11 by a. clamp or similar connection whereupon a jack is placed upon an adjacent rail tie or other surface and is operatedv so that the saddle 4 thereof will be moved upwardly into'endagement with and will elevate-the jaartal-ctw 12 to a point loo whereat the worn bearings may be conveniently removed and replaced by new ones. Such practice, however, involves additional and excessive labor upon part of workmen engaged in the operation and likewise, is absorbing of considerable time. Therefore, with a view toward providing the anchoring leg 5 of my invention with means for maintaining the same in an engaged position with one portion of the inner peripheral surface of the car wheel 10 and also, for directing a downward stress to said leg 5 and foot 8 which will be sufficient to retain the car wheel 10 upon its track 11, I provide the device with longitudinally aligned screw threaded rods 13 and 14, engaging upon the upper end of the rod 13 and attaching plate 15 adapted to be fixedly secured to the aforesaid side of the body ortion or casing adjacent the upper end t ereof as is shown in the Figure 1; apertured bearing ears 16 being formed upon the plate whereby to permit of pivotal connection of said end of the rod 13 thereto as indicated by the numeral 17. The opposite or outer end of the rod 14 is also provided with an apertured extremity adapted to be received between the apertured ears .9 formed upon the upper side of the foot 8 whereupon a pivot pin 17 is passed therethrough, hence, effecting pivotal connection as between the leg and foot and the rod 14. A turnbuclrle 18 is engaged with the adjacent screw threaded portions of the several rods 13 and 14. It is obvious that with turning of the turnbuclile 18, the screw threaded rods 13 and 14 may be drawn together or forced apart with respect to each other, hence, imparting during such operation, pivotal movement to the foot carrying leg 5.

In usage of the improved jack equipped with the invention, the ack is placed in position as is shown in the Figure 1, directly beneath the journal box 12 which is to be raised and to have bearings replaced therein. The leg 5 with its outwardly curved foot 8 is positioned so as to be arranged in proximity to the car wheel l() and with this positioning, the turnbuckle 1S is rotated in a direction to cause relative outward movement upon part of the several rods 13 and 14, hence, moving the foot 8 of the anchoring leg 5 downwardly into engagement with a portion of the inner peripheral surface of the car wheel 10 as is shown in the Figure 1. The said foot 8 is engaged with the inner peripheral surface of the car wheel 10 under a pressure sufficient to absolutely insure the retention of said car wheel upon its rail 11 irrespective of the direction of upward stresses or lifting movement to the journal box 12. Subsequently to proper anchoring of the car wheel 10 upon its rail 11, the rod 3 is elevated so as to bring the saddle 4 thereof into engagement with the journal box 12 whereupon said journal box will be raised to a pointwhereat convenient access may be had to the worn bearings therein, following which such bearings may be readily removed and replaced by others. During elevation of the journal box 12, that is, in the process of replacement of the worn bearings therein, it will be understood that the car wheel 10 will be prevented from having any vertical niotion or movement whatsoever with respect to the rail'll, since, as aforesaid, theleg 5 with its outwardly curved foot 3 is engaged with said car wheel under a pressure sufficient to absolutely insure retention of this latter upon its rail. Likewise, it will be appreciated that the positive engagement as effective between the foot carrying leg 5 and the car wheel 10 will be such as to positively locate the jack body portion or casing against undesirable shift-ing movement, dur-- ing that period of its initial engagement `with the under side of the journal box 12.

Thus, it will follow that an effectual raising of the journal box 12 upon the shaft 3 and sat dle 4 of the jack will result.

Then replacement of the bearings in the box 12 has been effected, the shaft 3 is operated in a manner to return the same to its lnormal or lowermost position with respect to the journal box 12 hence, permitting the bearings in said box to be re-engaged with the car wheel axle. At this time, the turnbuclde 13 is rotated in 'a reverse direction from that hereinbefore described, causing the screw threaded rods 13 and 14 to be moved in a direction toward each other and by consequence, removing the outwardly curved foot 8 of the leg 5 from the previously engaged inner peripheral portion of the car wheel 10.

By reason of the fact that this anchoring attachment is connected to a jack through the medium of the attaching plates G and 15, it will be understood that such device may be successfully used in connection with various forms or types of jacks now generally in use for this particular purpose, without in any way effecting material modification thereof.

Manifestly, the construction shown is capable of considerable modification, and such modification as is within the scope of my claim, I consider within the yspirit of my invention.

In combination with a jack of the character described, an anchoring leg cuived upon itself throughout its length and having an acutely curved and out vardly disposed foot formed integral with the outer end thereof, the fiee extremity of said foot being rounded and being so disposed as to directly engage with an adjacent portion of the inner peripheral surface of a car wheel,

relatively' spaced upstanding apertured ears rods being pivotally connected between the 10 formed integral With the upper side of said upstanding apertured ears aforesaid, an atfoot, an attaching plate pivotally connected taching plate pivotally connected to the upto the remaining end of the anchoring leg per end of the remaining rod and detach- 5 and detachably connected to one side and ably connected to said side of the jack body lower portion of the jack body, a pair of adjacent its upper end. l5 longitudinally aligned Screw threaded rods, In witness whereof I have hereunto set a turnbuelle interconnecting Said screw niy hand.

threaded rods, the lower end of one of said FOWLER RICHARDSON.

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