US2309024A - Center brace for car bolsters - Google Patents

Description

Jan. 19, 1943.- J. E. TEssEYMAN ErAL 2,309,024

' .QENTER BRACE'FOR CAR BOLSTERS Filed Feb. '7, 1941 2 Sheets-Sheet 1 Q@ YQ @@@Q @wf/f@ Mw' Jan. 19;"1943. J. E. T'ESSEYMAN Em. 2,309,024

CENTER BRACE FR CAR BOLSTERS Filed Feb. 7, 1941 2 sheets-sheet 2 Patented Jan. 19, 1943 UNITED STATES PATENT @HCE CENTER EBRAE FOR CAR BOLSTERS Application February '7, 1941, Serial No. 377,768

(Cl. S-420) 5 Claims.

This invention relates broadly to car underframe structures and more especially to bolster center braces and back stops for draft gear associated therewith for freight cars.

In our invention this center brace is made up of rolled and pressed shapes welded together to form an integral unit and is designed to be substituted for the cast steel bolster center braces generally used on modern freight oars.

These members are all formed separately and then assembled in a jig and welded together.

The cast steel braces require machining on all sides which come in contact with therlcenter sill and bolster tie plates and also has to have all holes drilled to insure accuracy in location of rivet holes.

No machining or drilling of holes is required with our welded design.

One of the objects of our invention relates to the manner of constructing a bolster center brace with back stops for draft gear formed of separate rolled, pressed or forged members with holes punched therein which may be then assembled in a jig and welded together to form an integral unit adapted to be attached to the center sill by means of rivets only.

Another object of our invention relates to the manner of constructing a bolster center brace with back stops for draft gear formed of separate rolled, pressed or forged members which may be then assembled in a jig and welded together to form an integral unit adapted to be attached to the center sill by means of welding only.

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A further object of our invention relates to the I manner of forming and securing together the vertical longitudinally and transversely extending stileners for the center braces.

With these and other objects in View, this invention comprises the novel construction and combination hereafter described and more particularly pointed out and defined in the appended claims.

Having thus given a general description of the objects of our invention we will now in order to make the same more clear, refer to the annexed two sheets of drawings forming a part of this specication and in which like characters of reference denote like parts.

Figure l is a vertical longitudinal sectional Fig. 2 is a horizontal longitudinal sectional view taken on the line 2 2 of Fig. 4.

Fig. 3 is a vertical transverse section taken o-n the line 3 3 of Fig. 2.

Fig. 4 is a vertical transverse section taken on the line 4 4 of Fig. 2.

Fig. 5 is a vertical longitudinal sectional view through a car body bolster center` brace of a oar underframe taken on the line 5 5 of Fig. 6 illustrating a modified form of center brace construction in which the center brace is attached to the center sill by means of welding only.

Fig. 6 is a horizontal longitudinal sectional View taken on the line 6 6 of Fig. 7.

Fig. '7 is a vertical transverse section taken on the line 1 1 of Fig. 6, and Fig. 8 is a vertical transverse section taken on the line 8 3 of Fig. 6, but showing the modied form of center brace shown in Figs. 5 to 7 inclusive applied to an underframe for a flat car.

Referring now to the various characters of referenceon the drawings and rst to Figs. 1 to 4 inclusive, the numeral l indicates the center sill which is of Well known standard construction formed of a pair of Z-bars, each having its web 2 disposed vertically with inwardly extending top ilanges 3 of greater length and somewhat thinner thickness than the bottom flanges 4. Said top flanges 3 being welded together at their inner edges as at 5. y

The car body bolster as indicated at 6 has a vertical web plate 1, having its upper edge ilanged as at 8 and connected to the slope oor sheet 9 of a hopper car.

The bolster is provided with a bottom cover plate Ill which extends transversely beneath the center sill and is riveted to the bottom ilanges 4. The bottom edge of the web plate 1 is connected to the transversely extending cover plate I0 by means of angles Il, and a reinforcing angle l2 extends over the center sill and is riveted to the top flanges 3 and bent downwardly therefrom and riveted to the vertical web plate l of the boltser 6.

The center sill is secured to the web plate of the bolster at the sides by means of vertically extending inner and outer angular connections i3 and I4, and to further stiffen the bolster at this point the inner connecting angles extend upwardly nearly to the slope oor sheet 9.

The center brace for the bolster between the pair of Z-bars center sill comprises two side members l5 each pressed into channel shape and disposed with their webs I6 vertically and their top and bottom4 flanges I l and IB extending inwardly.

The webs I6 of the channel shaped side members have perforations I9 punched therein for receiving rivets 2U by means of which they are secured to the webs 2 of the Z-bar 'center sill members. The top flange I1 of each side member I5 is formed slightly longer than the bottom fiange IB and is adapted to be secured by means of rivets 2I to the top anges 3 of the center sill members, While the shorter bottom flanges I8 are connected together by means of a bottom plate 22 which is welded thereto as to 23 and perforated centrally as at 24. A drop forged draft lug 25 is welded as at 26 to the forward end of the web I6 of each of the side members I5 which are perforated as at 21 and adapted to be secured to the center sill by means of rivets 28.

The central portion of the bolster center brace is formed of a pair of vertical transversely extending stiffening plates 29 arranged in parallel alignment with the web plate 1 of the bolster 6, each having an arcuately formed central portion 30 registering with the perforation 24 in the bottom plate 22, and are adapted to connect the web I6 of the side members I5 and the bottom plate 22 and welded thereto as indicated at 3I and 32. The central portion of the center brace is further reinforced by means of vertical longitudinally extending stiening plates 33 which are welded to the central portions of the stiffening plates 29 and the bottom plate 22.

The bottom cover plate I9 which extends transversely beneath the center sill is riveted to the bottom flanges 4 of the center sill, angles II at the lower edge of the bolster web plate 1, and the A bottom plate 22 of the center brace and forms a tie for securely connecting the said parts t0- gether, and the central portion of the bolster is further reinforced by means of the usual center plate 34. 'I'he bottom cover plate and center plate 34 each having a hole formed therein registering with the holes 24 and 30 in bottom plate 22 and the transversely extending stiening plates 29 respectively for receiving a king pin.

Referring now to the modification illustrated in Figs. 5 to '1 inclusive the general arrangement and construction of the center sill and bolster are the same as that described for Figs. 1 to 4 inclusive except that the parts are shown welded together and the same reference numerals will I apply thereto. In this construction of the center brace the side members are formed of flat plates 35 which are welded as at 36 to the vertical webs of the Z-bar center sill members and are further provided at intermediate points with perforations 31 for plug welds 38.

A draft gear back stop lug 39 is welded to the forward end of each of the fiat plate side inembers 35 which is adapted to be welded as at 49 to the center sill. 'I'he two side plate members 35 are connected at an intermediate point by means of a bottom plate 4I which is welded thereto and has a central perforation 42. Ihe said side plate members are further connected together transversely by means of an I-bar 43 disv stiffening plates 46 are Welded to the web 44 of the I-bar 43 as at 50 and the bottom plate 4I as at 5I. The bottom cover plate IU for the bolster has a center plate 34 attached thereto, each having a perforation registering with the openings 42 and 41 in the bottom plate 4I and stiffening plates 46 for receiving a king pin.

In Fig. 8 we have shown a center brace constructed in the same manner as shown in Figs. 5 to '1 inclusive, but applied to an underframe for a at car in which the bolster is the same height as the center sill I and is connected together at vthe top by means of a cover plate 52.

In Figs. 5 to 8 inclusive we have illustrated the welded 'center brace unit welded to the underframe, but we wish it understood that we may in some cases desire to use rivets for this purpose in a similar manner to that shown in Figs. l to 4 inclusive.

In view of the foregoing it will be apparent that we have provided a simple fabricated construction formed of rolled and pressed plate metal adapted to form a combined car body center brace and back stop for the draft gear in which the parts are securely welded together and the parts reinforced, which are adapted to be assembledas a unit in a jig and then inserted between the center sill members and secured thereto to form an integral structure.

Although we have shown and described our invention in considerable detail, we do not wish to be limited to the exact, and specific details shown and described, but may use such substitutions modifications or equivalents thereof, as are embraced within the scope of our invention, or as pointed out in the claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

l. A bolster center brace for a car underframe constructed of a plurality of rolled sections welded together to form an integral unit, comprising a pair of vertical spaced side plate members, a horizontally disposed bottom plate connecting the lower edges of the side plate members, an I-bar having its web disposed vertically, welded to and connecting the plate side members and the horizontally disposed plate, an opening formed in the central lower portion of the web of the I-bar and a vertical longitudinally arranged reinforcing plate extending through the opening in the lower central portion of the web of the I-bar having a welded connection therewith and the horizontally disposed bottom plate.

2. A bolster center brace for a car underframe constructed of a plurality of rolled sections welded together to form an integral unit, comprising a pair of vertical spaced side plate members, a horizontally disposed bottom plate connecting the lower edges of the side plate members having a central perforation formed therein, an I-bar having its web disposed vertically and transversely of the side plate members and welded to the horizontally disposed bottom plate and the side plate members, an opening formed in the central lower portion of the web of the I- bar, a pair of vertical longitudinally extending reinforcing plates arranged in con-tact with each other extending through the opening in the web of the I-bar with their lower edges welded to the horizontally disposed bottom plate, an arcuately formed central portion in each of the longitudinally extending reinforcing plates adapted to form a hole to register with the central perforation in the horizontally disposed bottom plate to produce a king pin pocket, and a welded connection between the arcuately formed central portions of the transversely extending reinforcing plates and the web of the I-bar.

3. A bolster center brace for a car underframe constructed of a plurality of rolled sec-tions welded together to form an integral unit, comprising a pair of vertically spaced side plate members, a horizontally disposed bottom plate connecting the lower edges of the side plate members having a central perforation formed therein, an I-bar having its web disposed vertically and transversely of the said plate members and welded at its lower end to the horizontally disposed bottom plate and its ilanges welded to the side plate members, an opening formed in the central lower portion of the web of the I-bar, a pair of vertical longitudinally disposed reinforcing plates arranged in contact with each other extending through the opening in the web of the I-bar with their lower edges welded to the horizontally disposed bottom plate, an arcuately formed central portion extending vertically in each of the longitudinally disposed reinforcing plates adapted to form an opening to register with the central perforation in the horizontally disposed bottom plate to form a king pin pocket, a welded connection between the arcuately formed central portions of the vertical longitudinally extending reinforcing plates and the web of the I- l bar, and a back stop lug for a draf-t rigging secured to the forward end of each of the vertically spaced side plate members.

4. In a car underframe having a pair of spaced center sill members each having a vertical web with top and bottom flanged edges, a bolster for the car underframe, a center brace for the bolster constructed of a plurality of rolled members welded together and adapted to be inserted as a unit between the spaced center sill members and secured thereto, comprising a pair of spaced side plate members adapted to be welded to the webs of the center sill members, a bo-ttom horizontally disposed plate connecting the side plate members, a transversely extending I-bar disposed with its web vertically connecting the intermediate portions of the side plate members and the bottom plate, an opening formed in the central lower portion of the web of the I-bar, a pair of vertical longitudinally extending stifening plates extending through the opening formed in the web of the I-bar and welded to the bottom plate and the web of said I-bar, and a welded connection between the bottom horizontally disposed plate and the web of the I-bar.

5. In a car underframe having a pair of spaced center sill members each having a vertical web, a bolster for the car underframe, a center brace for the bolster constructed of a plurality of rolled members welded together and adapted to be inserted as a unit between the spaced center sill members and secured thereto, comprising a pair of spaced side plate members adapted to be welded to the webs of the center sill members, a bottom horizontally disposed plate connecting the lower edges of the side plate members having a central perforation, a transversely extend.

ing I-bar disposed with its web vertically connecting the intermediate portions of the side plate members and the bottom horizontally disposed plate, an opening formedin the central lower portion of the web of the I-bar, a pair of vertical longitudinally extending stiffening plates extending through the opening formed in the web of the I-bar and welded to the bottom plate and the web of said I-bar, a king pin pocket formed in the vertical longitudinally extending stiffening plates registering with the perforation in the bot-tom horizontally disposed plate, a welded connection between the bottom horizontally disposed plate and the web of the I-bar, and a back stop lug for a draft rigging welded to the forward end of each of the spaced side plate members and secured to the vertical web of each of the center sill members.

JOHN E. TESSEYMAN. LOUIS G. MILLER.

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