US1888824A - Locomotive structure - Google Patents

Description

Nov.- 22, 1932. K. s. HOWARD LOCOMOTIVE STRUCTURE Filed April 27, 1931 4 Sheets-Sheet 1 fl /mm A fra r ngy r/ci Nov. 22, 1932. K. s. HOWARD 4 LOCOMOTIVE STRUCTURE Filed April 27. 1951 4 sneak -sheet 2 7 ll 1 u fiffor mgy e a Ina/6217 01- Z? Nov. 22, 193.2. K. s. HOWARD 1,888,824

LOCOMOTIVE STRUCTURE 4 Sheets-Sheet 5 Filed April 27, 1931 In V6 for /%d/'/ c /nam Fi/forngy Patented Nov. 22, 1932 UUETED srrsis ATENr oFFicE KARL S. HOWARD, OF ST. LOUIS, MISSOURI, ASSIGNOR IO GENERAL STEEL GASTINGS CORPORATION, OF' GRANITE CITY, ILLINOIS, A CORPORATION OF DELAWARE LOOOMOTIVE Application filed April 27,

My invention relates to railway rolling stock and consists in a novel arrangement and construction of the throttle valve, steam piping, and cylinder saddle in a locomotive.

It has been customary in locomotive construction to locate the throttle valve either in the steam dome or in the upper part of the smoke box. In the former case, saturated steam is conducted from the valve in the dome to the T-head or super-heater header, as the case may be, through a dry steam pipe and then downwardly through the smoke box through live steam pipes leading to the valve chambers for the main steam cylinders. In

the latter case, the saturated steam is led from the super-heater header through the throttle valve and then downwardly through the smoke box as in the former case. In either case, the live steam pipes leading from the super-heater header extend downwardly from the upper part of the smoke box on each side of the smoke box. The live steam pipes either lead through openings in the smoke box wall to the valve chambers on opposite sides of the cylinder saddle, or make connections with steam pipes in the saddle itself.

The main object of my invention is to locate the throttle valve, either single or multiple, as the case may be, in the main steam 0 pipe or passage leading to the valve chambers and in the lower portion of the smoke box, or in the boiler support, so that the valve or valves and valve mechanism will be 5 readily accessible from the outside.

Another object of my invention is to simplify the construction by forming the valve housing integral with the main steam pipe or the cylinder saddle and thus eliminate the joints which are necessary in a built-up structure.

Another object of my present invention is to eliminate one of the steam pipes from the smoke box, thus increasing the space avail- 4 able for other appliances and decreasing the STRUCTURE 1921. Serial No. 533,225.

expense and labor incidental to installing the steam connections within the smoke box.

Another object of my invention is to eliminate the openings in the smoke box wall where the live steam pipes pass out to the valve chambers.

Another object is to provide a more permanent and secure mounting for the throttle valve than has been provided in previous designs of locomotives.

Another object is to form the live steam pipes integral with and extending across the saddle and forming a brace between the valve chambers.

I attain these objects and others which will appear from the following description by the structure illustrated in the accompanying drawings in which F'gure 1 is a top view of a locomotive cyl inder and a portion of the main frame embodying one form of my invention.

Figure 2 is a side elevation of the same showing the smoke box and an adjacent portion of the boiler in dot and dash lines.

Figure 3 is a front view of the same.

Figure 4': is a vertical longitudinal section taken on line 4-4 of Figure 1.

Figure 5 is a top view, sectional in part, taken on line 5-5 of Figure 7 and showing a modification of my invention.

Figure 6 is a side view of the same showing the throttle valve housing and a portion of the live steam pipe integral therewith.

Figure 7 is a front view of the same.

Figure 8 is a vertical longitudinal section taken on line 88 of Figure 5.

Figure 9 is a detail vertical transverse section taken on line 99 of Figure 2.

Figure 10 is a side view of a modified form of the structure shown in Figure 7.

Figure 11 is a substantially horizontal transverse section taken on the line 11-11 of Figure 10.

' Figure 12 is a horizontal transverse section taken on the line 12-12 of Figure 13.

Figure 13 is a side view of a modified form of the structure shown in Figure 2.

In Figures 1 to 4:, inclusive, and 9, illustrating one form of my invention, 1 indicate a portion of a locomotive underframe including side frame members 1, a front deck 2, and various transverse members as integral with a cylinder saddle structure including main steam cylinders 3, steam con trol chambers 4E, and a smoke box support 5 including substantially upright side walls and an arcuate top plate 9. The frame may be, however, of a built-up construction and the cylinder saddle may be formed separately and secured to the frame by suitable means, without departing from the spirit of this invention. 1 7

Pairs of exhaust pipes olead from the valve chambers 4 and merge in the passage which ez -lten ds upwardly, into the smoke box 8 init he usual manner. T hemerged portion 7 of the exhaust pipe is shown integral with the areuate top plate 9 of thecylinder saddle, although this feature is not essential to 'my invention.

The cylinder saddle also includes live steam pipes 10 and 11 which extend downwardly and outwardly to the valve chambers 4 from an upright passage 12011 the right sideof the saddle. This passage 12 is preferably integral with the arcuate top plate 9 which surrounds the smoke box saddle, and a collar 14: also surrounds the passages 7 and 12 at their tops. Passage 12 merges with the acent wallof the saddle, as indicated in Figure 9. fliive steam p'ipe 'llextends be hind upright exhaust steampassage 7 and the walls of thesetwo members 'merg e, as shown in Figured, thereby effecting a central support for, the transverse pipe 11. Live steam pipes 10 andll and'exhaustpipes 6 are preferably integral with the sm'oke box saddle, valve chambers, and main steam cylinders. j I

Ajthrottle valve housing or body 13 is formed integrally with'tlie portion of live steam passage 12 which merges with the wall of the saddle and an outward opening is provided for inserting the valve mechanism 18 and to permit access thereto and operation thereof from the outside. A partition 12a extends across'passage'12 adjacent valve body 13 and has a central'perforationprovided :with a renewable annular valve seat 13a. A'single pipe 15 conducts steam from the superheater header 15a downwardly through thesmoke box, and this pipe connects with the upper end of passage 12. Pipes 10 and'll, constituting arms on the lower end of the passage 12, conduct the live steam f'r omthe throttle valve to each valve chamber.

In the modification shown in Figures 5 to 8,'the throttle valve housing 16 is formed integrally with the live "steam pipe 17 exrivets, or welding.

tending downwardly through the smoke box from the super-heater header or T-head (not shown). This pipe 17 connects with the substantially upright passage 28 which is divided at its lower end into arms 19 and 20 leading outwardly to the valve chambers 21. Exhaust steam passages 24 extend from the valve chambers through the saddle structure and merge in an upright passage 23 projecting into the smoke box. Arm 20 of the forked live steam member extends behind passage 23, and the walls of the two pipes merge, as shown in Figure 8, effecting a central support for the transverse arm 20.

Live steam pipe sections 17 and 28 are curved to conform in a general way with the contour of'the smoke box wall 25 and provide the maximum space for various devices within the smoke "box. An opening is provided in the wall 25 adjacent valve housing loto permit access'to the valve interior from th'e'outside and also to permit operationof the valve. Partition 16a, extending across pipe 16,ha's a central openinganda renewable valve seat 22a.

The upright passages 28 and 23 are shown as merged with the arcuate top web 26 of the saddle. 'lhese passages might,however, extend through'holes in the web, or a portion of the web may form a'collar s'imil'artothat shown at 1e in Figure 1 for furtherbracing' the members. r j

The form shownin Figures '10 and 11 corresponds with thatshown in Figures5,'6, '7, and 8'except that valve housing 29in live steam pipe 30 is enlar ed to provide for a pair of'throttle valves. A partition 31 extending across pipe 30 hasa pair of openings 32 mounting renewablevalve seats 33. Pipe 30'connects with a 'pass'ag-e'3 1 leading upwardly into thesmokebox from the valve chambers 35' as in Figures 5,6, 7, and 8.

In Figures 12 and 13, corresponding with thef'oi'm shown'in Figuresl to 1 and 9, a multiplevalvehousing 36 is formedin theenlarged portion of live'stea mpip'e 37 which niergeswith' the wall of saddle 38. Outward openings 11 are provided in the wall drum saddle forinsertion of the valve mechanisms and renewablevalve seats 39 are mounted in the partition 40. v

I prefer to form the exhaust'pipes, live steam pipes, smoke box saddle, valve chambers, and main steam cylinders in' an integral structure with the locomotive underframe in all forms of my invention herein illustrated and described, but it would be withi n the spirit oftlie invention to form some of these elements separately and secure them to adjacent structure by means of bolts, I Thestri'ictur'e illustrated may also be modified 'as to various other: details without departing from the invention and I contemplate the exclusive use 4 spirit of the of all such modifications as come within the scope of my claims.

I claim- 1. In a locomotive, an integral structure comprising a smoke box support, steam con trol chambers, and a live steam pipe, said live steam pipe comprising transverse portions extending between said chambers and an upright portion extending through the top of said support.

2. In a locomotive, a cylinder saddle, steam control chambers adjacent thereto, a smoke box mounted on said saddle, and a live steam pipe having transverse portions extending between said chambers and through. said saddle and merging in a substantially upright portion extending into said smoke box; said saddle, chambers, and live steam pipe forming an integral structure.

3. A locomotive live steam pipe and a throttle valve housing integral therewith, said housing being arranged for a plurality of valves.

4;. In a locomotive, the combination of an integral structure including a live steam pipe and throttle valve housing, and a renewable valve seat in said structure.

5. In a locomotive, the combination of an integral structure including a live steam pipe and an integral housing arranged for a plurality of throttle valves, and a plurality of renewable valve seats in said structure.

6. A locomotive cylinder saddle integral structure including a throttle valve housing arranged for a plurality of valves.

7. A locomotive cylinder saddle integral structure including a throttle valve housing, and a renewable valve seat in said structure.

8. A locomotive cylinder saddle integral structure including a throttle valve housing arranged for a plurality of valves, and a plurality of renewable Valve seats in said structure.

9. A locomotive cylinder saddle structure having a throttle valve housing located therein and arranged for a plurality of valves.

10. In a locomotive, a cylinder saddle structure, a throttle valve housing located therein, and a renewable valve seat in said housing.

11. In a locomotive, an integral structure including a smoke box saddle, a live steam pipe extending through said saddle, a throttle valve housing within said steam pipe, and a renewable valve seat in said housing.

12. In a locomotive, an integral structure including a smoke box saddle, a live steam pipe extending through said saddle, and a throttle valve housing within said steam pipe, said housing being arranged for a plurality of valves.

13. In a locomotive, a smoke box, a steam supply member leading into the top of said smoke box, a saddle supporting said smoke box, a throttle valve located in said saddle,

and a live steam pipe for conducting steam from said member to said throttle valve.

14. In a locomotive, a smoke box, a steam supply member extending into the upper part of said smoke box, a throttle valve located in the lower part of said smoke box, and a pipe for conducting live steam from the end of said member within said smoke box to said throttle valve.

15. In a locomotive, a cylinder saddle,

ing through said smoke box substantially from top to bottom, and a throttle valve mounted within said pipe near its bottom end and located within said walls.

17 In a locomotive, a smoke box, means for conducting live steam through said smoke box comprising a single pipe leading through said smoke box substantially from top to bottom, and a plurality of, throttle valves mounted within said pipe near its bottom end.

18. In a locomotive, a smoke box, means for conducting live steam through said smoke box comprising a single pipe leading substantially across said smoke box from top to bottom, and a throttle valve mounted within said pipe, said valve projecting through an opening in the wall of said smoke box.

19. In a locomotive, a cylinder saddle, valve chambers on each side of said saddle, live steam passages extending from said chambers inwardly through said saddle and merging in a single passage extending up through the top of said saddle, and a throttle valve mounted in the merged portion of said passages and projecting through an opening in the side of said saddle.

20. In a locomotive, a smoke box saddle, an exhaust steam pipe extending upwardly through the top thereof, and a live steam pipe in said saddle having an upwardly extending portion and transverse portions extending from each side of said saddle and merging in said upwardly extending portion, one or" said transverse portions being supported by said exhaust pipe.

21. In a locomotive cylinder saddle structure, a plurality of substantially upright walls adapted to mount a smoke box, exhaust steam pipes extending between opposite walls of said structure and merging in an upwardly disposed passage extending beyond the top of said structure, and live steam pipes extending transversely of said structure and LQS merging an upright portion spaced from said first mentioned, passage, the Wall of one of said transversely extending live steam pipes merging with the Wall of said upright passage.

, :22. In a locomotive cylinder saddle structure, spaced valve chambers, exhaust steam pipes extending between said chambers and merging in an upright passage extending through the top of said structure, and alive steam pipe extending between said chambers and having an inlet connection intermediate its-ends.

In testimony whereof I hereunto aifix my signature this 21st day of April, 1931.

KARL S. HOWARD.

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