US1452896A - Locomotive driving box - Google Patents

Description

E-..'W. RAWDON LOCOMOTIVE DRIVING BOX 'F ileid Oct. 6. 1922 v2 Sheets-Sheet 1 Edward 14 Fan/dew I Gno e Apr. 24, 1923. 5,452,896 E. w. RAWDON. I LOCOMOTIVE DRIVING BOX Filed Oct. 6, 1922 2 shins-sheet 2 Z'd ward Ran/d 01v- Patented Apr. 24, 1923.

EDWARD W. BAWDON, OF AKRON, OHIO.

LOCOMOTIVE DRIVING BOX.

Application'filed October 6, 1922. Serial No. 592,755.

1 0 all whom it may oncern:

Be it known that I, EDWARD W. RAWDON, a citizen of the United States, residin at Akron, "in the county of Summit and S tate of Ohio, have invented certain new and useful Improvements in Locomotive Driving Boxes, of which the following is a specification.

This invention relates to an improved driving box for locomotives, being similar to the construction shown in my pending application for driving box, Serial No. 576,358, filed Ju ly 20, 1922, and seeks, as one of its principal objects, to provide a driving box wherein the box wedge will be automatically adjusted for taking up undue forward and rear play of the box.

The invention has, as a further object, to

provide an adjusting mechanism for the box wedge which will be adapted :to effectively accommodate vertical movement of the box as well as lateral movement thereof so that gardless of uneven track conditions.

And the invention has, as a still further object, to provide an adjusting mechanism employinga ratchet and a plurality of coacting pawls'for adjusting the box wedge, wherein said pawls will be spring pressed into engagement with the ratchet so that said pawls will normally lock the ratchet against retrograde movement, and wherein a connection between the box and said pawls will be provided, of such nature, that when the {box shifts forwardly, a straight horizontal pullv will be exerted on the pawls .regardless of thevertical or lateral displacement of the box.

In the accompanying drawings; p

Figure 1 is a fragmentary elevation showing. my improved driving box in congunction with a conventional pedestal;

.Fig. 2 is an enlarged fragmentary verncal sectional view showing the adjusting mechanism for the box Wedge in elevation; ig. 3 is a horizontal sectional view on the line 3-3 of Fig. 2, looking in the direction of thearrows;

Fig. dis a horizontal the line 4r -4 of Fig. 2,, looking in the .direction of the arrows; 4

Fig. 5v is a detail sectionon the line 5 of Fig. .3, looking in the direction of the arrows;

Fig. 6 is a detail section on the line 6-6 sectional view on tional pedestal 11 having the usual pedestal brace 12. The box body may be of any preferred construction and is provided with the customary flanges to accommodate a shoe 13 and wedge 14 cooperating with the legs of the pedestal. J ournaled through the' box body is a drive axle, as conventionally illustrated at 15.

Formed in the wedge 14 at its lower end is a recess 16 and threaded through the pedestal brace 12 is a wedge bolt 17 provided at its upper end with a circular head 18 rotatably engaged in said recess. The wedge bolt is provided with oppositely disposed longitudinal grooves 19 and loosely mounted on the bolt to rest upon the pedestal brace 12 is a ratchet 20 having oppositely disposed ribs or feathers 21 slidablyfitting in said grooves coupling the ratchet with the bolt. Thus, the ratchet may be turned will shift .endw-ise through the ratchet Formed on the ratchet at'its lower end is an annular base flange 22 and bolted or otherwisesecuned to the pedestal brace to over hang said flange are angle brackets 23 rotatably cormecting the ratchet with saidbrace.

Mounted upon the pedestal brace 12 adj acent the ratchet 20 is a pawl housing-25 cut away at one side, as particularly shown in Fig. 3, to accommodate the ratchet. The housing 25 is arranged to extend longitudinally of the pedestal brace and is formed of companion sections on which are formed lugs 26 through which are engaged. Y cap bolts or other suitable fastenings 27 holding the housing sections against separation as well as connecting the housing to the pedestal brace. ,Forrned on the sections at their forward ends are matingears 28 through which is .engageda bolt 29 .connecting the sections of .the housing with each other.,' Freely slidable. Within the housi is 'ablock .30 provided at its rear ,endwith spaced cars .31 and pivoted between said ears is a plurality of 'pawls'32. Extending through said ears and through the pawls is nut 46. Threaded throug then Pedestal ing disposed to cooperate at their free ends with the ratchet 20, and secured to theouter edges of said pawls near their free ends are springs 35 which extend forwardly toward the block 30 and bear at their free ends against the outer side wall of the housing, holding the pawls in engagement with the ratchet. I

Bolted or otherwise secured at its ends to the rear leg of the box body 10 is a depending yoke 36 straddling the forward end of the pawl housing 25 and formed in the'sides of said yoke are vertical slots 37. The side walls of said housing are provided with similar slots 38 and slidably fitting through the block 30 to extend through said slots is a squared cross rod 39 upon the ends of which are threaded nuts 40 securing the rod against endwise displacement, suitable washers being preferably interposed between said nuts and the sides of the yoke. Thus, the box body 10 may shift vertically when the slots 37 will accommodate the ver tical'movement of the yoke 36 while, when the box body shifts laterally, said rod will slide through the block 30. It will therefore be seen that regardless of the position of the box body due to local vertical and lateral movement thereof, the yoke 36 will, when the box body shifts forwardly, exert a straight longitudinal pull upon the block 30. Accordingly, as soon as any undue forward and rear play of the box body develops through wear, the block will be shifted longitudinally within the housing 25 when the pawls 32 will coact with the ratchet 20 for rotating said ratchet and turning the wedge bolt 17 to adjust the wedge 14 for taking up such play, At no time will the box body be permitted to pound withinthe pedestal since adjustment of the wedge will be accomplished automatically and, of course, the pawls 32 will, by being held in engagement with the ratchet by the springs 35, serve to lock the ratchet against retrograde movement and thus maintain the wedge in adjusted position. H

In Fig. 7 of the drawings, I have illus trated a slight modification of the invention wherein a wedge is shown at4l, the rear leg'of a pedestal at 42 and a pedestal brace at 43. In adapting the wedge to the present improvements I form therein a vertical'bore 44 near the lower end of which is a recess 45 and removably seated in said recessiis a brace and through said nut is a wedgebolt 47 adapted to be freely received in the bore 44. The wedge bolt is providedwith right andleft threads engaging similar threads in upon the bolt for elevating the wedge.

Otherwise, this modification is identical with the preferred construction and further s description is accordingly believed unnecessary.

Having thus described the invention, what is claimed as new 1s:

1. Ina journal box, a box body, a pedestal operatively supporting the box bodypmeans interposed between the box body and thebox body with respect to the pedestal adjustable for taking up forward and rear play of the box body, means for adjusting said first mentioned means including a pawl and ratchet, and an operative connection between the box body and said pawl adapted to accommodate lateral move ment of the box body with respect tothe pawl.

3. In a journal box, a box body, a pedestal operatively supporting the box body,- an adjust'able wedge interposed between the box body'a'nd' the pedestal, a wedge bolt rotatable for adjusting the wedge, a ratchet for rotating said bolt, a slideblock, a pawl'can ried by the block to coact with said ratchet,

and an operative connection between th b bodyand said block for shifting the' block incident. to forward and rear movement of thebox body. j a

" 4. In a' journal box, a box body,ja pedestal o 'aerativelysu'pporting the box bodyinclud L ll ing a pedestal brace, an adjustable wedge inter'posed'between the'box body and the pedestal, a wedge bolt rotatable for adjusting the wedge,'a"ratchet for rotating said bolt, a housingmount'edpn thejpedestal brace, a block'slidable in-said housing, fa pawl carried by the block to coact with the ratchet, and an operative connectionbetween the box body and said block for shifting the block incident, to forward and rear play of the box body; i a l 5; In a journal box, a box body, a pedestal operatively supporting the box body including a pede'stal'brace, an adjustable wedge interposedbetween the box body and the pedestal, a wedge bolt rotatable for adjust ing the wedge, a ratchet for rotating-"said bolt, a housing mounted on the pedestal brace, a block slidable in said housing, a

pawl carried by the block to coact with the ratchet, an operative connection between the box body and said block for shifting the block incident to forward and rear play of the box body, and a spring bearing between the pawl and housing pressing the pawl into engagement with the ratchet.

6. In a journal box, a box body, a pedestal operatively supporting the box body, an adjustable wedge interposed between the box body and the pedestal, a wedge bolt rotatable for adjusting the wedge, a ratchet for rotating said bolt, a slide. block, a pawl carried by the block to coact with the ratchet, a yoke carried by the box body, and a cross rod forming a connection between said yoke and block for shifting the block incident to forward and rear movement of the box body.

7. In a journal box, a box body, a pedestal operatively supporting the box body, an adjustable wedge interposed between the box body and the pedestal, a wedge bolt rotatable for adjusting the wedge, a ratchet for rotating said bolt, a slide block,'a pawl carried by the block to meet with the ratchet, a yoke carried by the box body, and a cross rod forming a connection between said yoke and said block for shifting the block incident to forward and rear movement of the box body, said rod being slidable upon the block whereby the rod may shift laterally with re spect to the block with the yoke and box body. 7

' 8. In a journal box, a box body, a pedestal operatively supporting the box body, an adjustable wedge interposed between the box body and the pedestal, a Wedge bolt rotatable for adjusting the wedge, a ratchet for to tating said bolt, a slide block, a pawl carried by the block to coact with the ratchet, a yoke carried by the box body, and a cross rod forming a connection between said yoke and said block for shifting the block incident to forward and rear movement of the box body, the yoke being provided with slots freely receiving said rod whereby the yoke may shift vertically with respect to said block with the box body.

9. In a journal box, a box body, a pedestal operatively supporting the box body including a pedestal brace, a wedge interposed between the box body and the pedestal and ad justable for taking up forward and rear play of the box body, and a right and left threaded wedge bolt carried by the pedestal brace and operatively engaged with the wedge for adjusting the wedge.

In testimony whereof I afiix my signature EDWARD W. RAWDON. 1, 8.

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