US1021743A - Bolster. - Google Patents

Description

A. E. OSTRANDER.`

BOLSTER.

APPLICATION FILED MAB.. 8, 1911. 1,021,743. Patented Mar.26,1912.

ATTO RN EY COLUMBIA PLANOGRAPH C0., wAsmNuroN. D. C.

ALLEN E. CSTB-ANDER, F RIDGEWOOD, NEWV JERSEY.

BOLSTER.

` Speciiication of Letters Patent.

Patented Mar. 26,1912.

Application filed March 8,-1911. Serial No. 613,195.

To all whom t may concern:

Be it known that I, ALLEN E. OSTRANDER, residing at Ridgewood, Bergen county, New Jersey, and being a citizen of the United States, have invented certain new and useful Improvements in Bolsters, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modilications thereof will occur to persons skilled in the art.

In said drawings: Figure l is a side elevational View of a bolster constructed in accordance with my invention and illustrating portions of the car structure in transverse vertical section. `Fig. 2 is a top plan view of the parts seen in Fig. l. Fig. 8 is a transverse vertical sectional view taken on the plane of line 3 3, Fig. 1, the lparts being seen on an enlarged scale. Fig. 4l is a transverse vertical sectional View taken on the plane of line 4 4, Fig. 1, the parts being seen on an enlarged scale; and Fig. 5 is a vertical detailed sectional view taken on the plane of line 5 5 of Fig. 8, the parts being enlarged.

The object of this invention is to provide a bolster, or other transverse member of a car, formed of parts which are of simple de- -sign and which are so disposed as to be cal This invention provides such a member, the

parts of which may be readily dismantled without affecting the position of the center or side sills. In order to dismantle-this member, it is simply' necessary that the weight of the side sills and of thesuper- .posed longitudinally of the side sills. web portionk 11 of each of the castings 10 structure of the car be removed from the ends thereof by jacks, or other suitable means placed beneath said sills. Vith the side sills and superstructure thus supported, the member may be dismantled and entirely removed for repair or the placing in of a new member Without affecting the posiltlion of either the side sills or the center s1 s.

` The invention is illustrated as comprising a bolster but it will be understood that it is equally well adapted to each and all of the transverse supporting members of a car under-frame.

vReferring to the drawings; the numerals 1 1 indicate the center sills, and 2 2 the -side sills of ordinary steel car construction.

The center' sills are illustrated as comprisving I-sections, arranged with their webs standing vertically as is customary. Fitted between the webs of the two sills 1 1 is a filler casting or pressing 4, which is formed with vertically disposed marginal flanges 5 5, adapted to.be riveted to the webs l`of the center sills and with horizontally disposed top and bottom flanges 6 6 arranged lwith their upper and lower faces respectively in the horizontal planes of the upper and lower surfaces ofthe center sills. The usual king-pin opening as at 7 is formed in the filler 4L and suitable vertical reinforcing ribs as 8 8 connect the top and bottom flanges adjacent the center portion thereof.

Each of the side sills, or connecting members 2 is shown `as comprising angle sections disposed with one of its flanges upstanding and with its other flange extending inwardly from the lower edge of said upstanding flange. The side sheathing of the car as at 9 is riveted or otherwise secured to the outer face of the upstanding flange of the angle.4 The side posts as 3 may be fixed to the side sills in'any suitable manner and may-be of any desired cross-sect-ion which will provide a surface as 3a towhich one of the longitudinal floorsupports may be fixed as will be hereinafter set forth. l

A Z-shaped casting 10 is fixed to each of the kside sills 2 and said castings are dflsis arranged vertically with its lower horizontal edge disposed adjacent the inner edge of th-e horizontal flange of the side sill angle. The lower flange 12 of the casting underlaps the horizontal flange of the side sill angle and is securely fixed thereto by suitable rivets. The upper oppositely disposed flange of the casting as 12a projects inwardly toward the center sills and t-he upper surface thereof is disposed in the same horizontal plane as the upper surfaces of the center sills. Suitable integrally formed vertical reinforcing ribs as 13-13 are disposed upon inner sides of each of the castings and serve to stiffen the upper and lower flanges thereof' against distortion relative to the vertical webs.

Fixed to the inner face of the upstanding flange of each of the side sill angles 2 is a plate 14. The plate 14 is connected to, and made an integral part of, the casting by a plurality of vertically arranged ribs as 15-15 which project from the outer face of the vertical web port-ion 11 of said casting and merge into the inner face of said plate. The lower horizontal edges of the plate 14 and the ribs 15 are spaced sufficiently above the upper surface of the lower flange 12 of the casting to admit the horizontal flange of the side sill angle 2.

Fixed to the upper surface of the top j flange of each of the castings 10 is a horizontally disposed tieplate 16, which extends across the upper face of the center sills and serves as the tension member of the bolster. Suitable rivets, as at 17 are employed for fixing the middle portion of the plate 16 to the upper flange of the central casting 4.

Extending beneath the center sills isa relatively heavy plate 18 which is fixed, by rivets as at lf3-19, to the lower flange of the central casting 4. The plate 18 serves as the compression member of the structure and the opposite end portions thereof, beyond the center sills are inclined upwardly so as to connect with the under surfaces of the upper flanges 12a of the castings 10. Those portions of the plate 18 which engage said flanges are bent to a horizontal so as to lie flat against the under surfaces of said flanges and the extreme outer vertical edges of each end of said plate are disposed to abut solidly against suitably prepared vertical surfaces as 19-19 formed upon the inner faces of the vertical webs 11 of the castings. The close contact of the ends of the compression plate 18 with the flat faces of the castings 10 serves to relieve the relatively few rivets which connect said plate to side flange from much of the shearing strain incident to compression. It will be observed that the casting 10 is held in position with its upper flange 12a between the tension member 16 and the compression member 18 of the bolster by means of the rivets 30 which pass through the middle portion of the flange 12a and through both such tension and compression members, as well as by the rivets 31 through the side portions of flanges 12CL and the tension plate 16.

The usual center bearing casting as 2O is arranged beneath the central portion of the compression plate 18 and is fixed thereto by some of the rivets which connect the central casting 4 to said plate.

Upon opposite sides of the center sills 1 1, and fitted between the converging surfaces of the tension and compression members 16 and 18 of th-ebolster, are reinforcing castings 21-21. Each of the castings 21 is formed with a central web portion and with a vertical flange disposed parallel with and fixed to, the web of the adjacent center sill by rivets extending through the adjacent flange 5 of the casting 4, and each of said reinforcing castings is also formed with a top fiange fixed to the under surface of the tension plate 16, and with the bottom flange fitted to the inclination of, and fixed to, the upper surface of the compression plate 18. The castings 21 may be strengthened by any suitable system of ribs or other bracing elements. If desired, the castings 21 may be formed with pockets 22 arranged to receive and support the truss rods of the underframe.

Fixed to the under side of the plate 18 upon the opposite sides of the center bearing 20 are the usual side bearing members 23. The side bearings may be of any suitable design and may be connected to the plate 18 in any desired manner, but for convenient removal they are preferably held in position by bolts and nuts 24 as illustrated, the bolts being extended through the plate and through adjacent portions of the lower flanges of the castings 21.

In order to remove the compression member of this bolster, it is simply necessary to transfer the weight of the side sills and superstructure of the car to an independent support as suggested, and to remove the rivets which connect said compression member to the other members of the bolster. The compression member may then be lifted from its position without affecting any of the remaining parts. To remove the tension member, it is simply necessary to remove the rivets which fix said member to the other elements of the structure and said tension member may then be readily lifted from its position. With the compression member and the tension member removed, it is a simple matter to remove the rivets which hold the castings 21 to the centerl sills and so remove either or both of said castings. The center casting 4 may then be shifted from its position and forced out if desired. Writh the compression and tension plates removed, either of the side castings 10 may be readily displaced by removing the rivets which x said castings to the side sills.

With ordinary wood iioor construction the removal of the upper or tension plate of the bolster may be accomplished without great difficulty by simply removing portions of the timbers comprising the flooring. With modern concrete flooring, however, the problem is slightly more difficult. This in vention contemplates an arrangement of the supporting elements of a concrete flooring whereby said elements will not interfere with the ready removal of parts of the bolster. To this end the corrugated sheet metal as 24 upon which the concrete is directly supported, is omitted at the point of the bolster; that is to say, said plates do not extend above said bolster but are cut out or omitted where said bolsters occur as is` clearly illustrated in Figs. 3 and 4 of the drawings. The longitudinal supporting members of said fiooring are fixed to the side posts of the car as at 25 so that their upper surfaces, upon which the corrugated sheet metal is adapted to rest, are disposed approximately in the same horizontal plane as the lower surface of the upper or tension plate of the bolster. The angle 25 extends continuously from end to end of the car and the castings 10 are so formed as to permit of their unobstructed passage. Intermediate longitudinal iioor supporting members as 27 are fixed to the under surface of the tension members of the bolster beyond the outer ends of the casting 21.

Lapping the corrugated metal upon opposite sides of the tension member 16 of the bolster, and extending across the upper surface of said tension member, is arranged a sheet of expanded metal or other reinforcing material, as 26. rlhe portions of said expanded metal which lap the corrugated metal, effeotually serve to prevent cracking or breaking of the concrete along the lines of the bolster. v

When it is desired to remove the upper or tension plate of the bolster, it is simply necessary to break the concrete along the edges of said tension plate sufficiently to release the edges of the expanded metal whereupon said plate may be removed without difficulty.

I-Iaving thus described my invention what I claim as new and desire to secure by Letters Patent is 1. In a car underframe, side sills, a trans verse supporting member comprising a compression member and a tension member and flanged pocketed castings fixed to the under surface of said tension member and to the upper surfaceV of the compression member above ,the` lower plane nof said ,side sills and being there held by rivets in double shear, the pockets ofy said castings being adapted to receive vinward projections of said side sills..

2. In a car underframe, side sills, a transverse vsupporting member comprising a compression member and a tension member, and means secured by through rivets in double shear between opposing faces of said compression and tension members, said means extending beyond the ends of said compression and tension members and being `adapted to abut said compression member and t'o serve as pockets to receive inwardextensions of said side sills and vbe secured t-o said extensions and to the web of said side sills.

3. In a car underframe, side sills, a transverse supporting member comprising a compression member and a tension memberv and flanged pocketed castings fixed to the under surface of said tension member and to the upper surface of the compression member, said castings bearing against the ends Aof said compression member, said castings having horizontal bearing surfaces and vertical plates adapted for attachment to said side sills.

4. In a car underframe, plate girder side sills, a transverse supporting member comprising a compression member and a tension member and angular pocketed castings fixed to the under surface of said tension member and to the upper surface of said compression member by rivets in double shear, said castings being adapted to engage the end of said compression member and the pockets in said castings being adapted to receive flanges of said side sills.

5. In a car underframe, plate girder side sills, a transverse supporting member comprising a compression member and a tension member and pocketed castings iixed to the under surface of said tension member and to the upper surface of said compression member above the plane of theside sills, the pockets in the castings receiving flanges of said side sills and parts of saidrcastings contiguous to said pockets being adapted to engage a plurality of members comprised in said side sills.

6. In a car underframe, plate girder side sills, a transverse supporting member com` prising a compression member and a tension member and a Z-sliaped casting disposed with one of its'fianges engaged between an under surface of said tension member and an upper surface of said compression member and there secured by rivets in double shear and with the other of its flanges extending outwardly beyond the ends of said compression and tension members andbeing adapted to engage one of said side sills.

7 In a car underframe, the combination witha plate girder side sill, of a transverse supporting member comprising a compression member and a tension member and a Z- shaped casting fixed by rivets in double shear through one of its flanges between opposing faces of said compression and tension members and by its other flange to an under surface of said side sill and being' also adapted to be connected to a vertical surface of said side sill.

8. In a car underframe, plate girder side sills, a transverse supporting member comprising a compression member and a tension member, an extension flanged casting fixed to the end portions of said compression and tension members and adapted to bear against the end of said compression member and strengthening ribs formed upon said extension member, said compression member being fixed to said extension member between said strengthening ribs and the tension member being fixed to said extension member and extending above said strengthening ribs and being fixed to said extension member at points removed from said oompression member, said extension memberu being adapted to engage the web of one of said side sills.

9. In a ear underframe, side sills, a transverse supporting member comprising a compression member and a tension member, a Z- shaped casting fixed between the end portions of said compression and tension members and bearing against the end of said compression member, and strengthening ribs formed upon said casing, said compression member being fixed toa liange of said casting between said strengthening ribs and the tension member being fixed to said flange and extending above said strengthening ribs.

10. In a car underframe, plate girder side sills, a transverse support-ing member comprising a compression member and a tension member, an extension member fixed to the end portions of said compression and tension members by rivets in double shear through said extension member and through said compression and tension members and said extension member being fixed to said tension member by rivets removed from said compression member, said extension member being adapted to engage one of said side sills.

11. In a ear underframe, side sills, a transverse supporting member comprising a compression member and a tension member, an extension member fixed to the end portions of said compression andtension members, and strengthening ribs formed upon said extension member, said compression member being fixed to said extension member between said strengthening ribs and said tension member being fixed to said extension member and 4extending above said strengthening ribs and being fixed to said extension member at points removed from member being adapted to engage one of said side sills.

12. In a car underframe, side sills. a transverse supporting member comprising a compression member and a tension member, a Z-shaped casting fixed to the end poi'- tions of said compression and tension members and strengthening ribs formed upon said casting, said compression member being fixed to a flange of said casting between said strengthening rib and said tension member being fixed to said flange and extending above said strengthening rib, said Z casting being adapted to engage one of said side sills.

13. In a car underframe, plate girder side sills, a transverse supporting member comprising a compression member and a tension member, an extension member fixed between the end portions of said compression and tension members by means extending -through said members and said extension member being fixed to said tension member by means removed from said compression member, said extension member being adapted to engage the web of one of said side sills.

14. In a car underframe, plate girder side sills, a transverse supporting member comprising a compression member and a tension member, a fianged casting fixed between the end portions of-said compression gitudinal members being disposed between the horizontal plane of said compression and tension chord so as to facilitate unobstructed removal of said chords, flooring members supported upon said longitudinal floor support-ing members upon opposite sides of said tension chord, a cement flooring material supported upon said flooring members and being continuous above said tension chord, and a bonding elementl disposed above said tension chord within said cement fiooring material and being adapted to extend beyond the opposite sides of said tension chord and lap said flooring members so as to prevent cracking or breaking of said cement fiooring material above or along the marginal lines of said tension chord.

16. In a car underframe, the combination with central and intermediate longitudinal floor supporting members, of a transverse supporting member comprising spaced compression and tension chords, all of said lonsaid compression member, said extension ygitudinal members being disposed between a' o the lhorizontal planes of said compression l longitudinal floor supporting members fiXed 10 and tension chords so asV to facilitate unobstrueted removal of said chords, center sills and ller castings between intermediate p0rtions of said compression and tension Chords, side sills, side posts, extension members between end posts, and between end portions of said compression and tension chords adapted to engage said side sills and sidekk to said side posts beyond the ends of said tension chord above saidextension members. In witness whereof I have hereunto set my hand in the presence of two witnesses. ALLEN E. OSTRANDER. Witnesses:

L. GERsFoRD HANDS,` FRANK V. COOPER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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