USRE14275E - of poetsmouth - Google Patents

Description

n f 5 a 4 7 L? 2, mi m M g A w an V B G. H LANGTON.

ADJUSTABLE LGCOMOTIVE DRIVING BOX BRASS.

APPLiCATION HLEU AUGi31, i916.

W 1 TN E55 Reissued Mar. 20, 1917.

UNITED srAT es raireur curios.

GEORGE HENRY LANGTON, OF POETSMUUTH, VIRGINIA, ASSIGNQR DF ONE-HALF TO 5. W, SMALL, 0 PGBTSMOU'IH, VIRGINIA.

ADJUSTABLE LOG OMOTIVE DRIVING-BUEI ERAS-S.

Original No. 1,150,375, dated August 17, 1915, .Serial No. 87 2:,561, filed November 28, 1814. Application for reissue filed August 31, 1316. Serial No. 117,862.

To all whom it may concern:

Be it known that I, GEORGE H. Lnus'ron,

a citizen of the United States, and formerly a resident of Raleigh, in the county of ake and State of North Carolina, but now residing at Portsmouth, county of Norfolk, and State of Virginia, have invented certain new and useful Improvements in Adjustable Locomotive Driving-Box Brasses, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to adjustable locomotive driving box hrasses.

The ordinary driving box brass is forced into place in its seat in the box under pressure, but is liable to become loose in the driving box in time because of its expansion and contraction or from other causes, andv becomes loose in its fit on the journal due to Wear and other causes. WVhen this occurs it is necessary to remove the brass and apply a new one, and' this necessitates placing the locomotive in the repair shop for several days or for an even longer period of time, and in the ordinary construction of driving box and brass, a satisfactory job cannot be done in the application of a new brass without removing the wheels and otherwise dismembering the locomotive.

It is therefore the aim of the present in .vention to provide a driving box brass that may be applied, removed and adjusted without thelnecessit v of removing the wheels or otherwise dismantling the locomotive, or placing the locomotive in the repair shop for any considerable length of time.

A further aim is to provide a driving" box brass so constructed that it may be expanded to provide the necessary pressure under which a driving box brass has to be forced into place in its seat in the box, without removing the wheels or otherwise dismantling the locomotive.

Another aim is to provide a driving box brass hat may be applied, removed or adjusted without the employment of heavy machinery, hydraulic or screw presses or like devices, and at a minimum of: time, labor and expense.

In the accompanying drawings, Figure l is a perspective view of a driving box equipped with the brass embodying the present invention. Fig. 2'is a side elevation of the device. lfiig. 3 is an end elevation thereof. Fig. d is a top plan view. Fig. 5 is a perspective view of the brass removed from the box. Fig. 6 is a perspective view oi the expanding wedge for the brass.

. ()UllB-S])(Jiltllllg and like parts are re ferred to in the following description and indicated in all the views of the accompanyin drawin s by the same reference characters.

In the drawings, the numeral 1 indicates in general an ordinary locomotive driving box which nn prided with the usual recess 2 for the reception of the driving axle. The box is furhmr 'n'ov-idcd in thctop wall of the recess with he usual arcuatc seat 3 to receive the brass, "this seat terminating at shoulders 4- located at opposite sides of the recess and arranged for the engagement and support of the lateral edges of the brass. The ordinary driving box brass is cast in one piece and is, as before stated, forced into its seat in the driving box under high pressure. The brass embodying the present invention, however, is formed in two sections, each indicated by the numeral lVhen these sections 5 are assembled, the resuiting, brass is substantially of the same form as the ordinary one piece brass, or, in other words, is of arcuate form and by reference to the drawings it will be observed that the sections 5 comprising: the brass constitute halves ofthe brass as a whole, so that the brass is, in fact, divided medially of its top or crown, as indicated at G. The sections 5 at their meeting edges are each formed. in its upper side with a recess 7, each recesshaving a plane bottom wall 8 and an. angularly disposed. vertical Wall 9. Stated in other words, the vertical walls of the recesses in the brass sections are nonparallcl to the meeting edges of the sections. Thus, when the sections are assembled as shown in Fig. 5, a tapered channel or groove is provided in the upper surface of the crown of the brass, the side walls of the groove or channel diverging in the direction of one end of the brass. In Fig. 6 there is illustrated. a wedge 10, which is disposed within the channel or groove in the upper surface of the wrass and which is provided for the nn-pose of relatively separating the sections so as to expand the brass as a whole and. cause the same to fit snugly and tightly in its seat in the driving box 1. The wedge 10 is provided at its minor end with a threaded stem or tang 11 to which is ap plied a nut 12 designed to be tightenhil in.a

manner now to be explained in order to draw the wedge in the direction of the minor end of the groove in the brass for the purpose stated.

7 The numeral 13 indicates a plate which is bolted or otherwise secured, as at it to one face of the driving box 1 and which has an arcuate lower edge portion 15 which projects below the upper surface of the seat 3 in th'e'said driving box, and which constitutes an abutment for the ends of the brass sections 5 and a bearing for the nut 12, the stem 11 of the wedge being fitted through an opening in the said plate, as will be apparent from an inspection of the drawings. It will now be understood that when the brass sections haye been assembled within the seat 3, in doing which it is desirable that a spreader be arranged within the recess 2 for the purpose of slightly expanding the driving box and then allowing the'box to resume its normal condition to firmly bind the b ass sections, the nut 12 may be tightened for the purpose ot'adjusting the wedge lengthwise in the groove of the brass for the purpose of expanding the brasssections to cause: them to moi-'otirinly seat within the seat in the driving box. It will of course be understood that the nut 12 may be'tightened from time to time, as occasion may require, tor the purpose of compensating tor the contraction of the brass sections and for wear.

As will be apparent from an inspection of the drawing, the wedge 10 is permitted lat-' oral movement to thereby insure equalizing the lateral pressure on the driving brass sections 5 5. In this way. should there be any slight dill'crences in the dimensions oi" the brasscs 5 5 or the recesses 77, the wedge ll) will compensate therefor. in order that the wedge ill may not project beyond the inner and outer faces of the box 2 or the brass therein, it is made somewhat shorter than the distancc from inner to outer a0 lure of the brass as appears from dotted lines in l igs. I and i. that. with my arrangement. it is unnecessary to taper the wedge vertically, considering the wedge in operative position. In other words, the wedge 10 is oi uni'i'orm depth or thickness as is also the channel formed by the recesses 7. As clearly appears l romvthe drawing. the plate 1-; naturally overhangs the smaller cud oi the tapered channel formed by the opposed recesses 7-7 in the brass sections so that l'hc wedge ll) can be drawn in the direction oi its smaller end.

It is obvious that the tapered scator channel 'I'ormed bv the recesses 7 is closed on its upper portion by the adjacent wall oi? It will also be noted i the seat for the brasses, formed in the driving box.

While the invention is primarily intended for application to locomotive driving box brasses, it may be, as will be readily under stood, used for other purposes where a similar brass is to be employed. It Wlll furthermore be understood that slight modifications withrefcrence-to the seat to equalize the lateral pressure on the driving brasssections, and means for moving the Wedge longitudinally adjusted position,

2. A driving box having a seat and op posed shoulders at the sides of the seat, a

sectional driving brass fitted Within the seat and holding the same in the:

and upon the said shoulders and having.-

longitudinal portions removed from the,

outer adjacent corners to form a longitu dinally tapered channel of uniform depth adjacent the seat, a wedge of uniform thickness and tapering in width throughout'its length and disposed in said longitudinally tapered channel 'to move freely on the seat laterally and longitudinally toequalize the lateral pressure on the driving brass sec-. tions, and means coacting with the wedge and box to draw the wedge into the channel to press the driving box sections apart and hold said wedge in the adjusted position.

13. driving box having a seat and opposed shoulders at the sides of the seat, a sectional driving brass fitted within the seat and upon the said shoulders and having longitudinal corner portions of adjacent sections next the scat removed to form a longi-' tudiually tapered channel. which is closed by the seat. a plate secured to a side of the driving box and projecting beyond the seat to overhang the smaller end of the tapered channel and the ends of the driving brass Sections, said plate having an opening in line with the tapered channel. a Wedge inserted in the tapered channel and freely movable laterally and longitudinally on the seat to equalize the lateral pressure on the driving brass sections. said wedge having a threaded stem at its smaller end to pass through the opening of the plate. and a nut mounted upon the projecting portion of the threaded stem and engaging the plate to draw the wedge into the tapered channel to press the driving brass sections apart and hold them firmly against the seat and upon the said shoulders.

i. In a device of the character described, the combination with a box having a seat; of a sectional brass fitting against said seat, the ineetingedges of the sections being recessed longitudinally thereof to thereby form a channel tapered in the direction of a wedge fitting adapted to be the length of said sections; within said channel and -to thereby effect H. \V. ISBELL.

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