US1937587A - Locomotive structure - Google Patents

Description

Dec. 5, 1933. H. M. PFLAGER LOCOMOTIVE STRUCTURE Filed March 28, 1932 2 Sheets-Sheet l D611. 5, H, M. GER

LOCOMOT IVE STRUCTURE Filed March 28, 1932 2 Sheets-Sheet 2 PatentedDec-s 1 UNITED "STATES PATENTcri icsff LocoMoTIvE' s'rn c'rURE Harry M. Pflager, St. Louis, MoQa ssignor to General Steel Castings Corporation, Granite City 111., a. corporation of Delaware 7 Application March 28,1932. Serial No.160l,465

15 Claims. (01. 105-44) The invention relates to railway rolling stock exhaust steam passageways 9 and longitudinaland consists in a novel locomotive under-frame Webs 10. i... and associated structure. v The underframe includes a main backbone It has been customary heretofore to mount the portion of box section (see Figure 6) including air brake operating cylinders at the rear of the sidewalls 11, bottom 'wall 12 and top wall 13 0.

main steam cylinder saddle and in order to acand" this box section merges with the r'ear por commodate these cylinders substantial spaces tion of'the cylinder saddle; Supplementary side were necessary in the framing at the rear of the .members'indicated at l iare'utilized tQfOllllth'jf saddle. In a familiar type of cast locomotive river pedestals *15. A box shaped front deck bed, an underframe backbone member. of box structure 16 extends forwardly'from the cylinder 65 cross section, is utilized to providea strong rigid saddle and terminates in an 'end sillfl'l. "Walls I sructure and the usual cylinder arrangement 18 extend upwardly from the deck and form sup-j f necessitated cutting away this backbone member" porting structure for the usual water; and air adjacent to the brake cylinders and the steam pump cylinders (not shown); Members 1118 are cylinder saddle where increased rigidity was braced by deep transverse webs 19and519u. 70 desirable. V Preferably airbrake opei'atingcylinders Z'O'ar'e In locomotives having two-wheel front engine cast integrally withthe front deck structure,'the trucks, the space between the front drivers and transverse web 19a having openings 21 for cylinthe cylinder saddle is so restricted that it is ders 20. s

difdcult to'apply the brake cylinders and associ- A yoke 22 is attached .to each cylinder piston '15 ated gearing in the usual position. rod 23 and links 24 extend along each side of The main object of the present invention is to the cylinder to the rear thereof wherethey are overcome the disadvantages set forth above, and connected by a bar 25 to which a pull rod 26 is this object is accomplished by locating the brake attached. Pull rods 26 extend through suitable 25 cylinders in front of the cylinder saddle and exopenings provided in saddle walls 4 and 5 and so tending brake operating rods through ihe saddle. extend lengthwise and interiorly of the backbone This arrangement makes possible continuing the member to a point where they may be'connected backbone member up to and preferably merging to brake levers 27} The brake shoes are applied with the rear portion of the saddle structure and to the drivers 28 by means oflevers 27 and asso- 3 affords ample room for mounting, operating, inciated gearing 29, I specting and repairing the brake cylinder and. The Wheels 30 indicate a four-Wheel front associated gearing. Preferably the structure detruck which tends to Space t ont drivers-2 scribed is to be formed integrally by casting or from the main steam cylinder 1, and cylinder otherwise, and locating the air brake cylinders saddle, a greater distance than would be present 5 in front of the saddle is advantageous in such if a two-wheel engine truck is utilized, in which integral construciion as these parts are more accase the wheels would be in front of the. steam cessible for machining, bushing, etc. cylinders and the driver's would be so close to In the accompanying drawings illustrating a the saddle that it would be difficult to locate a preferred embodiment of the invention brake cy i de at the real" 0f the dd e- 40 Figure 1 is a top view of one longitudinal half It is not essential'to the invention that the of the forward portion of a locomotive bed with IOCOmOtiVG underflame b -p e Cas d associated brake gearing. or thatvthe brake cylinder-becast'integral'with Figure 2 is a side View, a portion of the b d the front deck structure. Various other details being sectioned adjacent to the brake pull rod, illustrated and described may be varied without I 5 Figure 3 is a half front elevation of the strucd pa t from the i i Of the invention. I

ture shown in Figures 1 and 2. contemplate the exclusive. use. of those features Figures 4, 5 and 6 are vertical transverse secof the invention w i come Within the scope tions taken on the corresponding section'lines of Of e Claims irrespective modifications in '7 Figures 1 and 2. details. I I

50 The main steam cylinders and their supply a is Claimed is; chambers are indicated at l and 2, respectively, 1. In a lo'comtive, a n team cylinder sadand are shown as being cast integrally ,with the dle, and a. brake operating cylinder carried in cylinder carrying saddle which includes side front of said saddle. 1 walls 3, transverse walls 4 and 5, a lower wall 6, 2. In a locomotive, a main steam cylinder sad- 55 an upp Wall a boiler Supporting e e 8, dle, a brake operating cylinder carried in front v with and'a brake operating'cylinder locatedin .of said saddle, and brake lever operating rods extending from said brake cylinder through said saddle. t

t 3. In a locomotive, a front deckframing structure and a brake cylinder carried thereby.

- 4. A locomotive front deck structure having a brake cylinder body integral therewith. V

5. In a locomotive bed, a main steam cylinder saddle, framing members projecting forwardly therefrom, and a brake cylinder body carried by said members, all of said parts comprising an' integral structure. t V

6. 'In a locomotive bed, a steam cylinder saddle, a backbone member of box section extending rearwardly of said saddle andmerging therefront of said saddle. 1

7. In a locomotive bed, a cylinder saddleba backbone member extending rearwardly of said saddle and merging therewith and elements in front of said saddle for supporting'a brake oper-' ating cylinder.

' 8. In a locomotive, a bed a'sspecifiedin claim]. 6, and'brake operating gear extending from said,

brake cylinder through said saddle and member. 9 .As a new: article of manufacture, a locomotivefbed-integral structure comprising a saddle i or said deck with a piston rod projecting outwardly motive, a brake lever pull rod extending through said saddle and means connecting the forward end of said pull rod with the outer end of said piston rod. I

12. In a locomotive, a main steam cylinder saddle, a front deck, a brake cylinder carried on said deck, a piston rod projecting outwardly frorn' said cylinder towards the front end of the locomotive, a yoke on said piston rod, links at the sides of said cylinder connected to said yoke; a bar between said links at the rear of said cylinder,.. and a brake lever operating rod connected to said bar and extending through said saddle.

13. In a locomotive, a main steam cylinder saddle, a front deck,' upright longitudinal walls at the sides of said deck for mounting air and therefrom towards the front end of the 1000- I water pumps, a transverse web betwee'n and bracing said walls, there being an opening in said web, and a brake cylinder carried on said deck and projecting through saidopening.

14. In a locomotive as specified in claim 13, a

piston rod projecting from the end ofs'aid 'cylin- I :der in front ofjsaidtransverse web, abrake operating pull rod extending through'said' sad dle, and means extending through said web and i HARRY M. PFLAGER.

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