US2161914A - Car construction - Google Patents

Description

June 1939- o. c. DURYEA I .cAR CONSTRUCTION Filed Sept. 15, 1937 Patented June 1a, 1939 mm STATES PATENT OFFlCE GAB CONSTRUCTION th. 0. Duryea, Waterbury,- nn., assignmto Dary'eaCorporai-ion, 11, Del, a

ofDelawar-e em September 15, 1921, Serial m. 164,050 China. 101. 105-226) This invention relates to railway car bolsters 1 and more particularly to the construction of the bolster in 8 railway car equipped with the Duryea underframe'although not restricted to this par- 5 ticular .use.-.

The Duryea underfran'ie, as described for example in United States Patent No. 1,69,194,-'issued November 27, 1928, to Otho C. Duryea,

embodies a draft and batting column that is movable longitudinally relative to them body in response to draft and bufllng forces to which the car couplers are subjected, suitable cushioning mechanism being interposed between the draft and bufllng column and the car body.

Hence, the transversely extending bolsters adja cent the endsof the car are each provided with openings through which this column extends. In the usual construction the column is formed by spaced channels extending through corresponding spaced openings, the central portion of V the bolster which is embraced by the channels being constituted by a strong rigid center brace. It has been proposed to form thelaterally extending, parts of the bolster-together with the center brace in a single casting. as shown in the aforesaid Duryea patent, but this construction, while practicable, requires a large, heavy casting that is difficult to make and heavy and cumbersom'e to handle." Another construction which has been extensively and successfullyused comprises a center brace casting of the general type shown in United States Patent No. 1,938,114, is-

sued December 12, 1933, to Otho C. Duryea, to-

gether with riveted laterally extending bolster strength and rigidity-to withstand hard usage construction including a bolster cover platesuitably secured tothe upper surfaceof flie center brace casting as by rivets. This construction in volves some duplication of material due to juxtaposed riveted surfaces, but particularly it involves a large number of riveting operations as well as the possibility thatthe rivets may rust in service or work loose unless carefully driven.

. It is an obiectof the present invention to avoid the foregoingdisadvantages by the provision of novel welded bolster construction whichthrough the elimination of riveting is more economical to manufacture and less liable to imperfection and deterioration but which provides adequate with a minimum of'material. Another, object of "the invention is to provide novel bolster construction embodying a center brace casting and'a bolster cover plate or plates welded into an integral unit. i

' Other objects of the invention will appear inafter as the description proceeds.

One embodiment of the inventionhas '11- lustrated in the accompmying drawing but it is to be expressly drawing is disclosed for example in for purposes of illustration only and is not to be taken as a definition of the limits of the invention, reference being bad to the appended claims for this purpose.

In the drawing: I I

Fig. 1 is an elevation, partly in section, bolster construction embodying the invention;

Fig. 2 is a vertical section on the line 2-2 of i 1;

Fig. 3 is a partial view of the center brace casting; and Y Figs. 4 and 5 are details on a large scale showing welded connections.

the outer face of As shown herein the bolster construction is designed for use with a Duryea underframe of the type disclosed in the aforementioned patents and is accordingly provided withspaced openings 1, I through which extend the usual channels 2, 2,

' these being suitably connected to form a draft and bufllng column that is longitudinally movable relative. to the car body as above stated. The cushioning mechanism and its connections .to the column and car body constitute no part of the present invention and in the interest of simplicity are .not shown herein, but it will be understood that any suitable long travel cushioning devices can-be employed such as those Y referred to above. 1 V V I Disposed between and embraced by the channels 2,2 is a center brace casting} which as shown herein is generally T-shaped, said casting comprising a lower vertical portion intermediate and embraced by the channels 2,} and an upper head which extends laterally above the flanges of the channels. This head comprises a lower substantialLv horizontal floor or wall 4 ata level immediately above the flanges .of the channels and vertical stiifening webs extending upwardly therefrom.

'As shown in cross section in Big. 2, outer ver- -tical webs 5 andan intermediate vertical web 6 extend transversely of thecenter brace casting throughout-the width of the horizontal wall 4,

and these webs support a bolster cover plate 1 which preferably'extends between and is suit ably secured to the sidesills I of the car body asshowninli'ig. 1 Each ofthevertical'websiis the two Duryea patents provided along its upper edge with a groove 9 substantially the entire transverseextent of the intermediate vertical web 6 and the slot II is of corresponding length. with this construction, the intermediate web I can be welded to the cover plate from' the top of the plate by a slot weld, whereas the outer webs i are welded to the under side'of the cover plate by flllet welds.

As shown in cross sectionin Fig. 1, additional vertical webs I! extend longitudinally of the center 'brace casting above the horizontal wall 4,'

these longitudinal webs being of slightly less height than'the transverse webs, 5 so that they do not engage. the under surface of the cover plate I. In addition to strengthening the center brace, these longitudinal webs provide 'means .ior securing flanged vertical plates H which extend longitudinally of the car body through the bolster and define the outer sides of the openings l, I.

As shown in detail in Fig. 4, each of the webs I3 is provided at its upper edge with a groove [5 and the plates ll are-placed against the webs l3 and secured thereto by fillet welds. formed in the grooves ii, the flanges 16 of the plates l4 engaging the under surface 01' the cover plate 1 to which they may be welded ii desired. The lower flanges" of the plates I} engage abottom cover plate- It whichpasses under the channels 2, 2 and the center brace casting 3 and is suitably welded to the latter'as by fillet welds along the transverse edges of the plate. The flanges I] may be welded'to the bottom cover plate I8 by providing one or more openings in the cover plate below theflanges or in the flanges above tlfe cover plate, which openings, are filled with the weld metal. One such-opening is shown in detailat- I As-shown in Fig. -l, the bottom cover plate l8 inclines upwardly on the outer sides of the plates l4 and terminates at the side sills 8 to which it is secured in any suitable manner as by welding.

Intermediate the top and bottom cover plates vertical web sor diaphragms 20 maybesecured' in any suitable manner as by welding. The usual center'plate 2i is suitably welded to the bottom I covr plate II, as by providing arms 22 in the center plate and by forming fillet welds at the ed es r said I It will be seen that this construction provides av built-up bolster which is welded intoaan integral rigid unit.- By welding the.parts together,

and particularly -by welding the cover plate I to the center brace casting to'form the upper horizontal wall thereof, casting problems are simplifled, expensive rlveting operations are eliminated and there is no danger of loose rivets. ,The transverse weld lines along the webs 5 and 6 provide a construction that is strong and rigid against longitudinally acting draft 'and-bufllng forces to which the bolster is subjected in service with a minimum amount of material, and the dsign is such that the :weld lines are accessible so that the-construction can he manufacturedand assembled economically.

. While only one embodiment or the invention has been described and illustrated in. the drawing, it will be understood that the invention is not limited to this embodiment but'is cap ble of a variety mechanical e'xpresions and that changs'may be made inthe form, details of construction arrangement of partsfwithout departing Iran the spirit of the invention. Reference is tbaeforeto be had to'the appended claims for a'deflnltion of the limits of the lib What is claimed is: .1. Railway car bolster construction comprising a 'center brace casting the upper part of which is provided with outer vertical webs and an intermediate vertical web extending transversely of the car body, and a bolster cover plate extending transversely of the car: body and'supported on said webs, said plate having a transverse slot into which a portion of said intermediateweb projects, said outer webs being welded to the under side of said plate and said intermediate web being welded in said slot.

2. Railway car bolster construction having a pair of spaced 0 ings therethrough and comprising a center brace casting between said openings, the upper part of said casting comprising 1 a laterally extending horizontal wall having vertical webs extending transversely of the car body and vertical webs extending longitudinally of the car body, said longitudinal webs having less height than said transverse webs, vertical plates extending longitudinally of the car body through the bolster and defining the outer sides of said. openings; said plates being welded to said longitudinal webs, a bolster cover plate supported on the upper edges of said transverse webs and welded thereto, and a bottom cover plate extending transversely on each side of said casting below saidopenings;

3. Railway ca-r bolster construction-having=a pair oi spaced openings therethrough and comprising a center brace casting between said open? ings, the upper partof said casting comprising a laterally extending horizontalwall havingverplate being welded to the bottom 0;! said casting and to lower flanges on said vertical plates.

4. Railway car bolster construction comprising a center b'race casting the upper part of which is provided with outer vertical webs and an intermediate vertical web extending transversely of the car body, top and'bottom cover plates extending transversely ofthe car body on each side of said casting, said bottom cover plate being welded to the bottom of said casting; said top cover plate being supported on said webs and having a transverse slot' into.which a portion oi said intermediate'web projects, said outer webs being welded to the unga'side-of saidcover plate and said intermediate w'eb being Welded in said slot, and verticalplates extending transversely .1 '01 the car body between said'cover plates and welded thereto.

5. In railway car bolster'construction, a center brace casting the upper partof which is provided with outer vertical websand an intermediat e vertical web extending transversely of the car oody, each 0 said outer webs having a groove formed along its upper outeredge and saidintermediate web having a central bead, and a bolster cover plate supported on said webs' and.

having a slot toreceive said bead, said outer webs being welded to the under side to said cover plate welded in said slot. 7

. by flllet welds in said grooves and said bead being one o. DURYEA.

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