US1686104A - Locomotive frame - Google Patents

Description

Oct. 2, 1928.

.J. D.RAUCH LOCOMOTIVE FRAME filed April 30, 1926 v 4 e ts-Sheet.

J. D. RAUCH LOCOMOTIVE FRAME Filed April so, 1926 4 Sheets-Sheet 4 TED- ST-Am" Patented Oct. 2 191 28.

resales PATENT JoHN D. RAUCH, or-rnvm, 011 10, ASSIGNOR TOI'II-IJE CAST STEEL DEVICES -oo., or" a LIMA, OHIO, A CORPORATION or OHIO. r

LOCOMOTIVE FRAME.

Application fiia April so, 1926. Serial No. 105,645.

This invention relates. to improvements in cast steel'locomotlve frames, and has for its principal ob ect tO PIOVlClG a new and improved form of frame capable of being readily cast in a single piece in such form and shape as to accommodate certain parts of;the spring and brake rigging and yet affording sufiicient strength for a main frame casting itself. The invention may best be understood by referencerto the accompanying drawings, in which Figure l is made upv of the two-part figures 1 and-1 which may be placed end to end so as to show the entire length of a away along. the upper half of the view to show the, several web portions and pedestals in part section, V v I Figures 4:, 5, 6, 7 and Sarasectional views takenon'irre'gular section linesfi, 5, 6, 7

and 8, respectively of; Figs. 3 and 3 In the drawings, the inventionis shown as applied tea-steam locomotivehavlng four 7 drivingaxles, although it may be appliedto any number of drivingaxles. ,The'singl'e frame [casting 10 is provided with; four sets of pedestal recesses formed between guides 12, 12, with the driving axles indicated in dotted line'sat 11, 11 in Figure. 1. These driving axles form part of the usual run: ning gear, including journal boxes which engage with pedestal guides 12,12 in the usual manner. The construction of such journal boxes and running gearwill be readily understood by those familiar with the art, so are not shown in detail.

It will be manifest that it is inherently difficult to produce a relatively light, but

sufiicient-ly strong casting of such a generally irregular shape, especially in view of the plurality of pedestal recesses as shown.

The frame 10 comprises as its main elements'two vertically disposed beams or side members 15, 15 which extend the length of the frame, and support the pedestal guides 12,12 therein, 1 They are together at r the front endby a cross memberl6, and at the rear end by a cross member l 'l the latter 'ofwhich includesa pivotal bearing support 18 for the tender. The'side members are also .joined by certain other intermediate I members of"speciallconstruction, and will now be described in detail. 7 g. 1 1

Referring now to Figures 2 and 3, it :Will be seen that the two side walls 15, 15 are somewhat higher at their central port-ions where they are arched over the pedestal guides 12, 12Vand are oined together by four cross-pieces 30, 31, 32 and 33, cross pieces -,are spaced apart so that each is disposed over, or adjacent a pair of ped estal recessesf It will, clearly appear from The four Figures 3; and 3 that'allofthe crosspieces just referred to are. joined to inwardly disposed flanges or webs 34,134 connected to and forming continuations of the upperedge of the side members 15, 15 so .a's'to form in effect a contlnuous web arched across the top ofthe frame at its central raised portion. i

Asecondset of connecting pieces will also be .seen in Figure,2,-which consists, ofa plurality of cross members 37 37 .which are shown in cross: section curving over the upper corners of the three front pairs of pedestal guides 12, 12 and cross members 38, 38 which are disposedto, connect the lower corners of each oppositely-disposed pair of pedestal guides. The adjacent cross -- members 37 and 38 are joindtoflangesor webs 39, 39 extending inwardly from-the side members 15, l5 -.so,as .to' form-in effect a second continuous web, o'omprlsing all parts 37, 38 and 39, which is thereby arched in longitudinal section over each pedestal.v

recess and thence downwardly and thence across to provide both longitudinal and lateral support between each adjacent pair of pedestal guides. the first web consisting of the parts 30,

It will now be clearlthat 31, 32, 33 and 34, connecting the top of the side frame members 15' are spaced vertically above the second web consisting of parts 37, 38 and 39,. so that the two webs together provide a relatively light but rigid construction, particularly "effective in providing the required strength for the purpose for which such frame is designed. Obviously, the cross-portions of the two connecting lncarrying out my invention, I have also provided means for accommodating equalizing spring rigging of a standard type, such as 1s shown in dotted lines in Figures 1 and- 1; The parts of the equalizing rigging indicated include two setsor systems, the first set serving the two front axles and including side springs 17", 17, links 18, 18 and equalizer bar '19, arranged along each side member and connected together by a crossequalizer bar (not shown) in the usual manner.

. includes springs 21, 21"", equalizer bars 22,

22, links 23, 23 and any suitable cross-equalizer bar, if desired. v

' Referring now to the method of accommodating these, or similar spring rigging devices, it will be seen that I provi'dea plurality of indentations or recesses 25, 25, formed alongmthe upper corners of'the side frame 'mem v 8 rings 17 and 21 may have movement.

ese indentations are best recognized in the left hand sectional view, Figure 7, although they can" also be seen inFigures 1, 2, 3 and 8. 'It is usually desirable that the equalizing springs be disposed directly above the journal boxes which are engaged between the pedestal- guides 12, 12, and'to this end, the

'equalizin" springs 17and 21- engage blocks 26, 26, w ich extend downward y through slots or apertures 27 formed in the frame at the bottom of their respective recesses 25, 25

I in position to engage the top of their journal boxes; Similarly, the inner equalizing links 18". 18' and 23, 23 extend through apertures 28,28 adjacent the ends of the recesses 25, This provision of recesses 25, 25, and

apertures 27 and28, requires that the center portion ofthe main frame be made higher inorder to gain the required strength over the arched pedestals without unduly raisingthe height of the equalizing springs 17' and'21. Inthe form shown, it will be The second set of equalizing rigging rs 15, and in which the equalizer seen that the recesses 25, 25, are formed contiguous t0 flanges 34', 34, and thus form with the side walls of said recesses a continuation of the upper connecting web heretofore described as including flanges 34 and cross pieces 30, 31, 32 and 33, while the cross pieces 37, 37 forming part of the lower connecting web are substantially in horizontal alignment with the bottom of recesses 25, (see Figure 7). The frame member is therefore considerably strengthened by the added height of the frame afi'ordedrthrough the provisions ofthese recesses 25, 25.-

While- I have shown and described one particular embodiment of my invention, it

will be understood that I do not wish tobe limited tothe exact construction shownand therein, and connecting means for said side members lncluding'a web connecting a the upper margins of said side members, and a second substantially continuous web arched in longitudinal section over the upper corners of'said pedestal recesses and thence spirit and scope of myinven downwardly and along the bottom of'said 5 side members between adjacent recesses.

2. A locomotive frame comprising a sin gle piece casting having a pair of side mem- ..bers with a plurality of pedestal recesses formed therein, and connecting means for said side members including "a substantially continuous webconnecting the upper margins of said side members, and a second substantially continuous web extending over,

and downwardly along the sides of each of said pedestal recesses, and from thence along the bottom of said side members between adjacent pairs of recesses.

Signedat Lima, 0., this 27th'day of A ril, I

1926; p v l JOHN D. RAUCHQ

Images