US976206A - Car-bolster. - Google Patents

Car-bolster. Download PDF

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Publication number
US976206A
US976206A US56354710A US1910563547A US976206A US 976206 A US976206 A US 976206A US 56354710 A US56354710 A US 56354710A US 1910563547 A US1910563547 A US 1910563547A US 976206 A US976206 A US 976206A
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Prior art keywords
bolster
webs
pair
upright
extending
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Expired - Lifetime
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US56354710A
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John F O'connor
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CLIFFORD W SHERMAN
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CLIFFORD W SHERMAN
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Priority to US56354710A priority Critical patent/US976206A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04—Bolster supports or mountings

Definitions

  • nrron JOHN F OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO CLIFFORD W. SHERMAN, 0F BUFFALO, NEW YORK.
  • My invention relates to improvements in the construction of bolsters for cars.
  • the object of my invention is to provide a cast steel car bolster of a simple and eilicient construction which will have a maximum strength for the amount or weight of metal therein and which will at the same time be of such form as to enable it to be readily and cheaply cast in wet sand or without cores.
  • Figure 1 is a side elevation partly in central, vertical, longitudinal section of a car truck and body bolsters embodying my invention
  • Fig. 2 is a detail plan view of the body bolster
  • Fig. 3 is a detail plan view of the truck bolster
  • Figs. 4 and 5 are detail cross sections on lines 4-4 and 5-5 of Fig. 1
  • Fig. 6 is a side elevation partly in central vertical longitudinal section illustrating a m0dification
  • Fig. 7 is a plan view of the truck bolster shown in Fig. 6 and Figs. 8, 9 and 10 are cross sections on lines 88, 99 and 10-10 respectively of Fig. 7.
  • each of the bolsters l and 2 are made of cast steel and are of a general truss shape, that is to say, deeper at the middle than at the ends.
  • Each comprises a central, longitudinal bottom web upwardly inclined fro-m the middle toward each end, a pair of central, longitudinal, upright webs, a pair of horizontal side webs extending longitudinally from end to end of the bolster and a pair of depending upright side webs or flanges, all the webs being integrally connected together and preferably of uniform, or substantially uniform thickness.
  • the central longitudinal web in connection with the central upright and longitudinally extending webs form a central longitudinal open channel between them and the upper horizontal side webs in connection with the intermediate and side upright webs form a pair of open channels at each side of the bolster.
  • the body bolster 1 has a central longitudinal bottom web 3 inclined upwardly from the middle portion 4 of the bolster toward each end and a pair of central or intermediate upright webs 5 each extending from end to end of the bolster and of tapering width or dept-h being wider at the middle portion than at the ends.
  • the body bolster also has a pair of narrow horizontal webs 6 extending from end to end of the bolster and also a pair of depending upright side webs 7 which extend from end to end of the bolster and taper from the middle portion thereof toward each end.
  • the body bolster by its integral webs 3, 5, 6, and 7 has a central longitudinal channel 8 and two longitudinal side channels 9, 9 extending from end to end of the bolster, the channels 8, 9 being deeper at the middle than at the end p01- tions of the bolster and all these channels being open, one upwardly and the other two downwardly, so that no cores are required in casting the bolster.
  • the central longitudinal bottom web 3 of the bolster is provided with transverse bends therein to form the side bearing members or projections 11., At its middle the body bolster 1 is also provided with a center plate seat or bearing 12.
  • the truck bolster 2 is of the same general shape and construction as the body bolster and comprises a central longitudinal bottom web 13 upwardly inclined from the middle toward each end, a pair of upright Webs 14 extending from end to end of the bolster and tapering from the middle toward each end, a pair of horizontal side webs 15 and a pair of depending upright side webs 16.
  • the bottom web 13 and upright webs 14, 14 form a central longitudinal open channel 17 and the webs 14, 15, 16 form on each side an open side channel 18.
  • the horizonbolster in respect to the sills.
  • tal side webs 1 5 of the truck bolster are also .provided with holes 19 for bolts 20 of the bottom or tensile acting web 3 extends transversely in a horizontal line and as the upper v or compression side webs 6, 6 also extend horizontally the metal in these webs is all disposed as far as possible from the center or neutral axis of the truss or bolster thus giving it a maximum of strength for the amount or weight of metal, and as in my invention the upright webs are all substantially parallel the disposition of metal in them is alsodisposed in the most efiective manner for strength, while at the same time 'the bolster is of such form in cross section at all points of its length that the channels formed by the upright and horizontal webs are all open either upwardly or downwardly on the body bolster which not only materially adds to the efiective strength of the sills but also materially diminishes the strains on the bolts by which the bolster is connected to the sills and which resist the heavy shocks that tend to twist or turn the V
  • a bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from end to end of the bolster and upwardly inclined from the middle toward each end, apair ofcentral or intermediate upright webs connecting said horizontal slde webs w1th said transversely-horizontal bottom web and tapering in depth from the middle toward each end bolster, a central bottom web horizontal in cross section and extending from end to end of the bolster and upwardly incllned from the middle toward each end, a pair of cen tral or intermediate upright webs connecting said horizontal side webs with said transversely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, and a pair of depending upright side webs tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, said bottom web having a transverse bend therein to
  • a bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from end-toend of the bolster and upwardly inclined from the middle toward each end, a pair of central or intermediate upright webs connecting said horizontal side webs with said trans versely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending trom end to end of-the bolster, said bottom web having an integral center plate seat at its middle portion, sub stantially as specified.
  • a bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from endto end of the bolster and upwardly inclined from the middle toward each end, a pair of central or intermediate upright webs connecting said horizontal side webs with said transversely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, and a pair of depending upright side webs tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, said'bolster having at intervals transverse fillets connecting said upright and horizontal webs, substantially as specified.
  • bolster comprising a air of horizontal webs extending from en to end of the bol ster, a central bottom web transversely horizontal, extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs connecting said horizontal side webs and said bottom web and a pair of depending upright side webs with a cast steel truck bolster comprising a pair of horizontal side webs extending from end to end of thebolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs and said bottom web and a pair of depending upright side webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
  • a cast steel body bolster comprising a pair of horizontal side webs extending from end to end of the bolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle to ward each end, a pair of upright intermediate webs and said bottomweb and a pair of depending upright side webs
  • a cast steel truck bolster comprising a pair of horizontal side webs extending from end to end of the bolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs connecting said side webs and said bottom web and a pair of depending upright side webs, said bolsters having integral center plate seats at their middle, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
  • An integral metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross section and extending from end to end, a pair of intermediate upright webs connecting said side and central webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
  • An integral metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross section and extending from end to end, a pair of intermediate upright webs connecting said side and central webs, and a pair of upright side webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
  • the integral cast metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross-section extending from end to end and inclined from the middle toward each end, a pair of intermediate upright webs connecting said side and central webs and taperin in depth from the middle toward each end and a pair of upright side webs tapering in width from the middle toward each end, substantially as specified.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Description

J. F. OGONNOR,
OAR BOLSTER.
APPLICATION FILED MAY,26,1910.
Patented Nov. 22, 1910 2 SHEETS-SHEET 1.
ms NORRIS PETERS 0a., wnsnmcrmm u,
J. P. OGONNOR.
GAB. BOLSTER.
APPLIOATION FILED MAY 26,1910.
Patented Nov. 22, 1910.
2 SHEETS-SHEET 2.
JaMFflZmwr flyM, 531m. AMY #61044.
1n: NORRIS PETERS c0.. wAsmNaroN. n. n
nrron JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO CLIFFORD W. SHERMAN, 0F BUFFALO, NEW YORK.
CAR-BOLSTER.
Specification of Letters E'atent.
Application filed May 26, 1910.
Patented Nov. 22, 1910. Serial No. 563,547.
To all whom it may concern:
Be it known that I, JOHN F. OCoNNoR, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Oar-Bolsters, of which the following is a specification.
My invention relates to improvements in the construction of bolsters for cars.
The object of my invention is to provide a cast steel car bolster of a simple and eilicient construction which will have a maximum strength for the amount or weight of metal therein and which will at the same time be of such form as to enable it to be readily and cheaply cast in wet sand or without cores.
My invention consists in the novel constructions and features herein shown and described and more particularly specified in the claims.
In the accompanying drawing forming a part of this specification, Figure 1 is a side elevation partly in central, vertical, longitudinal section of a car truck and body bolsters embodying my invention; Fig. 2 is a detail plan view of the body bolster; Fig. 3 is a detail plan view of the truck bolster; Figs. 4 and 5 are detail cross sections on lines 4-4 and 5-5 of Fig. 1; Fig. 6 is a side elevation partly in central vertical longitudinal section illustrating a m0dification; Fig. 7 is a plan view of the truck bolster shown in Fig. 6 and Figs. 8, 9 and 10 are cross sections on lines 88, 99 and 10-10 respectively of Fig. 7.
In the drawing 1 represents the body bolster and 2 the truck bolster. Each of the bolsters l and 2 are made of cast steel and are of a general truss shape, that is to say, deeper at the middle than at the ends. Each comprises a central, longitudinal bottom web upwardly inclined fro-m the middle toward each end, a pair of central, longitudinal, upright webs, a pair of horizontal side webs extending longitudinally from end to end of the bolster and a pair of depending upright side webs or flanges, all the webs being integrally connected together and preferably of uniform, or substantially uniform thickness. The central longitudinal web in connection with the central upright and longitudinally extending webs form a central longitudinal open channel between them and the upper horizontal side webs in connection with the intermediate and side upright webs form a pair of open channels at each side of the bolster. By this form and disposition of the metal the greatest possible strength is secured for the amount or weight of metal employed and at the same time the bolster is adapted to be cast in wet sand or without cores thus enabling it to be economically manufactured, and, as all the webs upright and horizontal of the bolster are of uniform thickness, little difficulty is experienced in the casting operation from unequal cooling or contraction or from casting strains.
The body bolster 1 has a central longitudinal bottom web 3 inclined upwardly from the middle portion 4 of the bolster toward each end and a pair of central or intermediate upright webs 5 each extending from end to end of the bolster and of tapering width or dept-h being wider at the middle portion than at the ends. The body bolster also has a pair of narrow horizontal webs 6 extending from end to end of the bolster and also a pair of depending upright side webs 7 which extend from end to end of the bolster and taper from the middle portion thereof toward each end. The body bolster by its integral webs 3, 5, 6, and 7 has a central longitudinal channel 8 and two longitudinal side channels 9, 9 extending from end to end of the bolster, the channels 8, 9 being deeper at the middle than at the end p01- tions of the bolster and all these channels being open, one upwardly and the other two downwardly, so that no cores are required in casting the bolster. The central longitudinal bottom web 3 of the bolster is provided with transverse bends therein to form the side bearing members or projections 11., At its middle the body bolster 1 is also provided with a center plate seat or bearing 12.
The truck bolster 2 is of the same general shape and construction as the body bolster and comprises a central longitudinal bottom web 13 upwardly inclined from the middle toward each end, a pair of upright Webs 14 extending from end to end of the bolster and tapering from the middle toward each end, a pair of horizontal side webs 15 and a pair of depending upright side webs 16. The bottom web 13 and upright webs 14, 14 form a central longitudinal open channel 17 and the webs 14, 15, 16 form on each side an open side channel 18. The horizonbolster in respect to the sills.
tal side webs 1 5 of the truck bolster are also .provided with holes 19 for bolts 20 of the bottom or tensile acting web 3 extends transversely in a horizontal line and as the upper v or compression side webs 6, 6 also extend horizontally the metal in these webs is all disposed as far as possible from the center or neutral axis of the truss or bolster thus giving it a maximum of strength for the amount or weight of metal, and as in my invention the upright webs are all substantially parallel the disposition of metal in them is alsodisposed in the most efiective manner for strength, while at the same time 'the bolster is of such form in cross section at all points of its length that the channels formed by the upright and horizontal webs are all open either upwardly or downwardly on the body bolster which not only materially adds to the efiective strength of the sills but also materially diminishes the strains on the bolts by which the bolster is connected to the sills and which resist the heavy shocks that tend to twist or turn the V The widely separated horizontal side webs 6, 6 are furnished with holes 26 to receive the bolts for connecting the bolster to the car sills.
I claim 1. A bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from end to end of the bolster and upwardly inclined from the middle toward each end, apair ofcentral or intermediate upright webs connecting said horizontal slde webs w1th said transversely-horizontal bottom web and tapering in depth from the middle toward each end bolster, a central bottom web horizontal in cross section and extending from end to end of the bolster and upwardly incllned from the middle toward each end, a pair of cen tral or intermediate upright webs connecting said horizontal side webs with said transversely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, and a pair of depending upright side webs tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, said bottom web having a transverse bend therein to form an integral side bearing member, substantially as specified.
3. A bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from end-toend of the bolster and upwardly inclined from the middle toward each end, a pair of central or intermediate upright webs connecting said horizontal side webs with said trans versely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending trom end to end of-the bolster, said bottom web having an integral center plate seat at its middle portion, sub stantially as specified.
a. A bolster consisting of an integral casting comprising a pair of straight horizontal side webs extending from end to end of the bolster, a central bottom web horizontal in cross section and extending from endto end of the bolster and upwardly inclined from the middle toward each end, a pair of central or intermediate upright webs connecting said horizontal side webs with said transversely horizontal bottom web and tapering in depth from the middle toward each end of the bolster, and a pair of depending upright side webs tapering in depth from the middle toward each end of the bolster, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, said'bolster having at intervals transverse fillets connecting said upright and horizontal webs, substantially as specified.
5. The combination of a cast steel body.
bolster comprising a air of horizontal webs extending from en to end of the bol ster, a central bottom web transversely horizontal, extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs connecting said horizontal side webs and said bottom web and a pair of depending upright side webs with a cast steel truck bolster comprising a pair of horizontal side webs extending from end to end of thebolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs and said bottom web and a pair of depending upright side webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
6. The combination of a cast steel body bolster comprising a pair of horizontal side webs extending from end to end of the bolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle to ward each end, a pair of upright intermediate webs and said bottomweb and a pair of depending upright side webs with a cast steel truck bolster comprising a pair of horizontal side webs extending from end to end of the bolster, a bottom web transversely horizontal extending from end to end of the bolster and upwardly inclined from the middle toward each end, a pair of upright intermediate webs connecting said side webs and said bottom web and a pair of depending upright side webs, said bolsters having integral center plate seats at their middle, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
7. An integral metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross section and extending from end to end, a pair of intermediate upright webs connecting said side and central webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
8. An integral metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross section and extending from end to end, a pair of intermediate upright webs connecting said side and central webs, and a pair of upright side webs, said upright webs forming a plurality of open drawable channels between them extending from end to end of the bolster, substantially as specified.
9. The integral cast metal beam comprising a pair of horizontal side webs extending from end to end, a central web, horizontal in cross-section extending from end to end and inclined from the middle toward each end, a pair of intermediate upright webs connecting said side and central webs and taperin in depth from the middle toward each end and a pair of upright side webs tapering in width from the middle toward each end, substantially as specified.
JOHN F. OOONNOR.
Witnesses:
H. M. MUNDAY, P. ABRAMS.
US56354710A 1910-05-26 1910-05-26 Car-bolster. Expired - Lifetime US976206A (en)

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