US1629476A - Spring support - Google Patents

Description

S- P. BUSH SPRING SUPPORT May 24, 1927.

2 Sheets-Sheet Original Fil ed Sept. 28. 1925 m n W 3 attozncqs May 24, 1927. 1,629,476

s. P. BUSH SPRING SUPPORT 7 Original Filed Sept. 28. 1925 2. Sheets-Sheet l r A i Patented May 24; 1927.,

UNITED STATES PATENTIMOFFICE.

SAMUEL I. BUSH, OF COLUMBUS, OHIO, AS SIGNOR TO THE BUCKEYE STEEL CASTINGS COMPANY, OF COLUMBUS, OHIO. i

SPRING snrron'n' Original application filed September 28, 1925, Serial No. 59,18. Divided and this application .filed Hay 29,1926. Serial No. 112,577. I

Thisapplication is a division of an application filed by Inc September 28th, 1925, Serial No. 59,168, the object of the present invention being-to provide a construction which will permit the side frame'to be re moved as a unit'without materially disturbing the spring plank, springs and bolster in relation to each other, thereby reducing the cost of changing .wheels as well as the period-- during which the equipment is out of service.

The inventionis illustrated in the accom-' panying drawings and consists in certain novel features which will be hereinafter first fully described and then more particularly pointed out in the appended claims.

In the drawings F igure'l is a side view of a portion of a car truck embodying the invention,

Figure 2 is a plan view ofthe same, Figure 3 is a central transverse section, Figure 4. is a detail of a key or removable stop lug.

The side frame 1 is shown With'integral journal boxes 2, although the journal boxes need not be integral. The side frame'has vertical columns which define a central opening 3 to receive. the end of thebolster 4 and the springs 5 upon which the bolster end rests. In the bottom 6 of the side frame is a pocket 7, and the end of the spring plank 8 is turned down, as at 9, to fit snugly in the pocket, the plank, of course, extending between and connecting the two side frames of the truck. The springs rest upon a spring tion of the opening 3 and over the pocket 7 with one end fitting between the side flanges 11 of the spring plank, the spring seatbeing formed with side flanges 12 to attain rigid'- y and ng h. The flanges 11 terminate at the side frame and fit closely between'th lugs or flanges 13 thereon, the interfitting engagement of .the several flanges minimizing the effects of the stress on the-bend of the spring plank.

The weight of the springs is carried by the spring seat which, extending over the end of the spring plank, holds the plank firmly in place. As a loaded car sways from side to side over uneven track, there is an unequal distribution of pressure upon the opposite ends of the group of springs when the bolster is tilted under a heavy side bearing load or blow. The drawings show means seat 10 which extends through the lower por- .been'wideri in its lower portion than in its for overcoming this inequality consisting of a rib or rocker 14 on the under side of the spring seat fitting in the pocket 7 and provided in its lower face with'a transverse concavity 15 resting on a convex saddle 16 in the pocket, the saddle constituting a fulcrum orpivotal support aboutwhich the angularity' of the bolster will freely accommodate itself. 1

At the top of the central opening 3 in' the side frame, in the'sides. thereof, are grooves or reentrant recesses 17 which permit the frame to bepassed over the end of the bolster,-the projections 18 on the bolster passing through said recesses or grooves and the bolster being then lowered to rest. on the springs. The movement of the frame over the bolster is arrested by contact with the lugs 19 on the sides of the bolster which are preferably cast integral therewith. ,Under' normal conditions of operating, the side frames restrict the transverse movements of the ,bolster by. contact with the inside stops 19 or'the outside stops 20 arranged in spaced relation ateach side of thebolster. The outside stops 20 are constructed as separate soparts and are held in-a definitely spaced.

' relation to the inside stops through direct interlocking with the bolster, preferably without the use of any third part, such as a bolt or rivet, for maintaining the relation. The outside stop is shown as a U-shaped key adapted to fit with its cross bar in the groove 21 in the underside of the bolster and with its side arms between the side frame and the lugs 18.0n the bolster. The keys are between the bolsterand the springs and are held in'place primarily by the weight or load carried by the bolster and springs Heretofore, the opening 3'in the frame has upper portion to permit it to pass over the 1 outside column lugs of the bolster which construction required a relatively longer spring seat member onthe frame. The relatively shorter length permitted by the construction 1 0 herein set forth adds materially to the strength of the device.

In car trucks of the usual construction, the bolster stops were generally not intended to be removed for the convenience of dis- 1 mantling the trucks, but were either cast integral with the bolster or secured to the same through permanent mechanical means.

- To facilitate assembling or disassembling of v the trucks, the bolster opening was provided frame or lowering the bolster.

parts to bring the bolster into proper-relation to the enlarged portion of the bolster T openlng before the side frame could be with drawn.

With my improved construction, the grooves or recesses 17 at the top of the bolster opening 3 permit the frame to be -passed over the end of the bolster, the projections. 18 on the bolster passing through said grooves or recesses. The bolster is first slightly and easily lifted from the springs to release the keys or stops 20 and permit them to be withdrawn; After'withdrawing the stops or keys, the bolster is again low- ;ered to rest on the springs, whereupon the spring plank, with the superposed springs and bolster, is raised sufficiently to clear the interlocking engagement between the spring plank and the side frame. The side frame may then be moved sidewise away from the truck without materially disturbin the I spring plank, springs, or bolster, thereby reducing the cost of replacing wheels or frames and expediting the work. v

Having fully described m1, invention what I claim as new and desireto secure by Letters-Patent, is

1. In a car truck, the combination of a side frame-.having an opening therethrough to receive a bolster and provided with a transverse groove in the wall of said opening near the upper end thereof, a group of springs carried by the side frame in the lower end'of the opening, a bolster having its end; supported within the opening by the springs, the bolster being provided with a transverse channelin its bottom and with inner and enter lugs on its side, the outer lug being arranged to pass through the transverse groove and the inner lug to abut the inner side of the side frame, and a single U-shaped key engaging snugly between the outer side of the side frame and the outer lug on the bolster and in the channel in the bottom of the bolster.

' 2. In a car truck, the combination of a side frame, a bolster engaged through theside frame and provided with spaced lugs on its sides, the inner lugs abutting the side frame, a group of springs supported in the side frame and'supporting the bolster, anda U- shaped key passing across the bottom of the bolster and heldthereto by the .springs and having side portions fitting between the side frames and the outer lugs on the bolster.

In testimony whereof, I have signed this specification.

. SAMUEL P. BUSH.

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