US1747971A - Side frame and journal-box mounting - Google Patents

Description

Feb. 18, 1930.

P. R. DRENNING SIDE FRAME AND JOURNAL B0X MOUNTING 2j Sheets-Sheet 1 Filed oct, 7, 192e Feb. 18, 1930. P. R. DRENNING 1,747,971

SIDE FRAME AND JOURNAL BOX MOUNTING y. theside frames of trucks of that variety inv 1 UNITED; 'STATES PATENT Patented Feb. 18, 1930 FICE BERCY ViR. DRENNING, OF BALTIMORE, MARYLAND, ASSIGNOR, BY MESNE ASSIGN- MENTS, T. H. SYMINGTON AND' PORATION OF MARYLAND SON, INC., 0F BALTIMORE, MARYLAND, A COR- SIDE FRAME AND JOURNAL-BOX MOUNTING `Application led October 7, 1926. Serial No. 140,183.

The rinvention relates to side frame construction and journal box mou'ntings for `use in connection with or forming parts of a railway car truck, particularly of the freight car type. .1, ,n y v Y,

The principal object yof the invention, gen- Y erally stated, is to provide cushioning means v for the Vjournal boxes used in connection with whichthe truck bolster isordinarily spring supported, the provision of cushioning means for the journal boxes acting to increase the spring capacity for the car so that heavier loads may be carried without the bringing of undue .stresses or lstrainsupon any of the parts. l n Y f Another object of the invention is toprovide spring ysupporting means for journal boxes in a. truck side frame of the arch bar type, the 'springs in connection with the journal boxes operating in conjunction with the bolster'supporting springs but having a different periodicity'so as to avoid synchroni'smv of vibration in the bolster supporting springs andy journal box springs so that there will be atendency to eliminatevertical jiggle and to reduce any tendency of the car to develop a' roll or side sway.

vA more specific object of the invention isk to provide journal box 'cushioning means in which guide means is provided for the cushioning or spring members to insure maintaining them in proper position and against accidental displacement atany and all times.

Another 'objectl of the invention is the provision of'spring means employed in conjunctionwith side frames of the pedestal or other type using separable journal boxes, the spring meansbeing adapted to be confined between the journal boxes and adjacent portions of the side frames and being, in some instances, capable of being enclosed within the' side frame and consequently protectedy against damagefand against thedeteriorating effects of the weather.

A Vstill further object isy to provide cushion forfabsorption means in conjunction with the ajournal boxesfformed as a bank or group of plate springs which not only provide resilience but `.which 4,actals'o to develop a certain amount of friction, the combination of the resilience and the -frictionacting to absorb sudden shocksand jars in addition to steadying the action and increasing spring capacity.

A still further object of the invention is 'to provide a structure of this character in which the journal boxes are mounted for vertical sliding movement with respect to the side frame, spring means being provided for opposing the sliding movement in one direction, and guide means being provided for preventing the journal boxes from moving in any direction other than vertically.

An additional object of the invention is to provide a structure of thisy character which will be comparatively simple and inexpensive to manufacture, easy to install, positive in action, eflicient and durable in service, and a general improvement in the art.

`With the above and other objects and advantages in view, the invention preferably consists in the arrangement and combination of parts and detailed structural features to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings in which:

Figure l is a side elevation of a portion of a truck frame and journal box mounted therein in accordance with one form of the present invention,

Figure 2 is a fragmentary elevation show,- ing a slight modification,

Figure 3 is a view showing a modified form of spring, f

Figure 4 is a side elevation of a portion of a bolster equipped withjournal boxesl of the pedestal type, the vinvention being shown applied, f

Figure 5 isa detail horizontal cross section taken on the line 5-5 of Figure 4, f f

Figure 6 is a vertical sectional view show# ing a different spring retaining means,

lFigure 7 is a side elevation of-one half of a side` frame showing a diiferent spring mounting-for the journal boxes, l

Figure 8 is a cross sectional view taken on the line 88 of Figure 7, the journal box itself being shown in elevation, and

Figure 9 is an end view of the side frame.

Referring morev parteiularly to the draw- Y is illustrated as it is entirely sutiicient to give a thorough understanding oi the invention. Each sidel of the side frame or each end is formed With an extending portion 4 beneath which is mounted the journal box 5. This box may be of any ordinary or preterred type.

in most respects though it is of special construction in other respects for cooperation with guide means to be described.

The guide means for each journal box may conveniently comprise an arm or tie bar 6 riveted or otherwise suitably securedV at 7 toa bracket or root piece 8 on the side trame, this arm 6 being apertured t'or the passage oit a sl-arality of bolts 9 which are arranged in vertical position and which extend through suitable holes 10 in the extension 4. The arm or tie bar 6 is horizontal and may be resilient. In the present instance the bolts 9 are represented' as having heads 11 at their lower ends and their threaded upper ends carrying nuts l Which may be of the castellated type for cooperation with cotters or the like provided 'L'orpreventing relative movement and separation. rlhe journal box is vertically slidably mounted with respect to these bolts 9 and is provided at its opposite sides With lugs or ribs i3 which cooperate With the guide bolts. Clearly the journal box may move vertically but it Will be equall move in any other c irection.

The cushioning or absorption means operating in conjunction with the journal boxes is here shown as comprising a bank or groupv of elongated plate springs 14 interposed between the top oi each journal box and the underside or' the correspondingy extension 4, thel springs being represented as having their concave sides uppermost With the center oi' thelovvermost plate engaging upon the journal box and the ends ot the uppermost plate engaging against the underside ot the extension 4. Ubviously, means must be provided for pre* venting dislocationv of 4the cushioning means and for this reason the ends or the plate springs are. shown as Jformed with notches 15 for the accommodation of the bolts, these notches opening out to the endsy of the plate springs; The arm 6 above referred to is really'a journaljbox tie and the tiexibility thereof is utilized in combinations with the bank of springs.

In addition to the above structure, I may provide a single platev spring 17 beneath the arm or tie bar 6 an-d arranged With its convex upper side engaging against the underside of the arm or tie. bar. the ends being formed with notches for the accommodation of the bolts 9, as illustrated in Figure 2, this plate spr-ing 17 Both ends of the side frame are ofA apparent that it cannot acting simply asV a bolt tensioning spring. Obviously, the springs 14 and 17 may be provided With holes 18, as in Figure 3, instead of V notches, if desired. Y

In Figures 4, 5'and 6 I have illustrated the invention as applied to a side ramekoi the pedestal type, the side frame 19 yhaving an opening 2() therein withinvvhich isvertically slidably mounted a ournal box Q1, the j ournal box having laterally extending flanges or Webs Q2 overlying the opposite faces of the side trame :tor limiting its movement to the vertical'. In applying the invention to this type ot journal box and mounting, use ismade orn a group or bank of elongated or plate springs 23 located between the journal box and thc top wall of the opening 20, the preferred arrangement being that the springs be disposed with their concave sidesupperinost, the ends of the topmostbearing against the top Wall of the opening andthe center of the lowermost bearingupon the'top of the journal box, Clearly, it is necessary to provide means for retaining the, springs in place and' this means may conveniently consist of vertical ribs 24ormed on the confronting vsides or" the opening 2O and engaging Within notches 25 vin the ends of the springs.

Instead of this retaining means, or in Adition thereto, the journal box may be formed at its top with spaced upstanding lugs 26 located at opposite sides of' the bank or group of springs, as clearly indicated in Figure 6. rFhe springs in any instance may be of any desired shape as for instance they may be rectangular as indicated in Figures 1 and 6 or I may make use of those of a hexagonal shape as indicated in Figure5, in Which event the upstanding guide lugs 26, on the journal boxes would be omitted, the guide means for the springs consisting then only of the ribs 24 engaging Within the notches in the springs'.

The advantage in using springsl of the shape shown in FigureV 5 is simply the increase in the area thereof as compared with the area of the elongated rectangular type. It ymight also. be mentioned that ifV the upstand-ing guide lugs E26 are used as spring retaining means the ribs. 24 and notches 25 may be omitted as either means is suilieient unto itself. l Y

. In Figures.. T, 8 and 9 I have disclosed yet another modification in which the side frame 28 has its end extension 29 formed With a pocket 30 opening' out to the end of the extension. The side4 frame is formed with an opening 31 Within which is vertically slid-V ably mounted the. journal box 32 which is provided With laterally extendingl Webs, anges or the like 33: engaging against the opposite faces o the side frame for guiding e purposes. The pocket 3) communicates with the. opening 31 and is of greater length than the Width of the. opening to provide ledges 34 nal box, theends yof the uppermost plate in ythe bank engaging these'ledges,and the cener than'the center of the top wall or' the pocket 'as' vclearly indicated in Figure 7.

The cushioning or absorption means in this instancecomprises a group or bank of elongated plate springs 86 littingwithin the pocket 80 and between the ledges 35 and the jourter of the lowermost plate engaging upon a convex* bearing member 37V which may be rformed integrally upon the top of vthe our- .nal'bo'xor which maybe constructed as a separate piece secured thereon, this detail being-immaterial. y fnthje assembling'ot the parts, itis apparent'thatthe groupwv or bank'of' springs 86 is introduced through the open end of the pocket,gsubsequently to which the openingr is intended to be closed as by'means of an Y angular closuremember 38 fitted into the open end and secured as by bolts 39. The ledges 34 above mentioned serve as'means for supportingthe springs within the pocket in casethe journal box is withdrawn entirely from engagement with the side frame, it beingmanitestly impossible for the springs to drop out. The purpose of the convex bearing` ymember 37 is to cause flexure of the springs upwardly under load conditions.

In' the operation of all forms of the invention, it will be readily apparent that under load conditions the plate springs will be iiexed to assist the bolster supporting springs. In the form of the invention disclosed in Figures l and l the bringing of a load upon the springs operates to flatten them from their normal curved shape whereas in the form disclosed in Figure 7 the weight acts to flex the springs out of their initial flat condition. The eect is the same in either instance inasmuch as movement of the j ournal boxes is resiliently opposed. As these v.springsare auxiliary to the bolster supporting springs it is clear that the spring capacity of the car equipped with the invention will be materially increased so that greater loads may be carried without danger of brmgmg Vundue strain upon any of the parts. The

plate springs operating in conjunction with or in addition to the bolster supporting spring will Lhave the additional effect of preventing jiggling and eliminating car roll or side sway in view of the .fact that synchronism is avoided as the periodicity of the two types of springs is entirely different. In every form of the invention it is evident that a larger or smaller number of plate springs may be used depending upon circumstances or other conditions which may develop in the actual-'carrying out of the invention. Am'- ple means has been provided for guiding the should be understood that the disclosure is merely illustrative of the general principles involved and certain possibilities in the matterof design and arrangement. /It should of course be understood that the right is reserved to make all such changes, variations or modiications as will'widen the iield of utility provided such constitute no departure from the spirit of the invention or the scope of the claims hereunto appended.

Having thus kdescribed the invention, I claim: j

1. In combination with a truck side frame of the arch bar type, plate lspring cushioned journal boxes carried by the side frame.

`2. In a railway car truck having a side frame and a f spring supported bolster mounted within a window opening in the side frame, journal boxes, and plate spring means located above and cushioning the journal boxes. n j

k3. In a railway car truck having a side trame and a spring supported bolster mounted within a window opening in the side frame, journal boxes, plate spring means located above and cushioning the journal boxes,

and retaining means for said spring means.

4. In a railway car truck having a side frame formed with a window opening for the reception of a spring supported bolster, a journal box vertically movably mounted at each end ot the side frame, means for guiding the journal box during its vertical movement and preventing movement thereot in any other direction, and a bank of plate springs. located between the top of the journal box and the adjacent portion of the side frame, said springs operating in conjunction with the bolster supporting springs for increasing the spring capacity.

5. In a railway car truck having a side frame formed with a window opening for the reception of a spring supported bolster, a journal box vertically movably mounted at each end ofthe side frame, means forguiding the journal box during its vertical movement and preventing movement thereoic in any other direction, and a bank of plate springs located between the top of the journaly box and theadjacent portion' of the side frame, said springs operating in conjunction with'the, bolster supporting springsfor increasingthe spring capacity and having va periodicity of vibration diiterent from that of the bolstersupporting springs'to break up synchronism of the latter.

liao

i. ln combination with a truck side trame of the type having a window opening for the reception of a truckbolster and spring supporti-ng means therefor, journal boxes vertically slidably mounted at the ends `of the side frame, and ,plate spring means supporting the side trame upon the journal boxes, said second named spring means acting in conjunction with the tirst named. spring means and having a periodicity diiierent inate car roll.

7. A `railway car truck side frame provided at. its ends with guide means and abutment means, a journal box vertically slidably mounted along the guide 4means at each end, a bank of plate springs arranged in engagement with veach journal box and the adjacent abutment means, and means` Jfor retaining the plate springs against displacement.

8. A tr-uckfside frame provided at each end with an `opening and a pocket commu-` nicating therewith, a journal box 'vertically slidablymounted withiny the. opening, and a pluralityv of plate springs arranged superposed relation within the pocket and engaged by the journal box.

9. A truck side trame provided at each end with an opening and a pocket communicating therewith, a journal box vertically slidably mounted within the opening, a plurality of plate springs arrangedinV superposed relation within the pocket and engaged by the journal box, the pocket opening out to the end of the side frame, yand means for closing said open end of the pocket.

10. A truck side frame provided lat each en dwithan opening and a pocket communicating therewith, aA journal box vertically slidably mounted within the opening, and apluralityof plate springs arranged in superposed relation within the pocket and engaged by the. journal box, the pocket having a length greater than the width of the opening to define retaining ledges acting to prevent dropping down of the `plate springs beyond a certain point upon removal of the journal box. y

ll. A truck side frame provided at each end with an opening and a pocket communicating therewith, ajournal box vertically siidahly mounted within the opening, a plu` rality et plate springs arranged in superposed relation within the pocket and engaged bythe journal box, the pocket being .formed at its ends with ledges located below the top of the pocket Jfor engagement by the ends of the topmostv plate springo' the Q0 bank, and the journal box having al convex upper surtacebearing againsty the center of therefrom to break up synchronism and elim-` a journal box vertically slidably mounted Y Y within the j awl portion, and a bank of plate springs located within thepocket in engagementwith the top of the'journal box andy removable from the end' of the pocket.

end with anopening and a pocket thereabove, a journal box vertically slidably mounted within the opening, a bank of Vplate springs located within the 'pocket and engaged by thejournal box, and means for limiting downward movement of the springs to pre vent dropping out uponremoval of the journal box. 14. A truck side frame provided at each end with an opening, a journal box slidably mounted within the'opening,a bank ofplate' 15. A truck side framer provided at each end with an opening kand a pocket communica'ting therewith, ajournal box vertically slidably mounted within thevropening, a bank of plate springs within the pocket engaged by the journal box, abutment shoulders at the top of the pocket engagedby the springs, movement limiting ledges at the bottom of the pocket for preventing dropping down of the springs, the bolster havinga second open-k ing leading into the'pocket permitting intro# duction or removal ofthe springs.

In testimony whereof I affix my signature.

PERGY R. DRENNING.

the underside Vof the lowermost plate spring.

12- A. side trame provided at f each end with a downwardly opening jaw portion and g5 formed with a pocket abovthejaw portion,

13. A truck side frame provided Vat each 0

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