US1171283A - Locomotive. - Google Patents

Description

Patented Feb. 8, 1916.

8. M. VAUCLAIN.

LOCOMQTIVE.v

APPLICATION FILED NOV. 18. 1914.

' ments in compound locomotives inders at one UNITED STATES PATENT orrioii.

SAMUEL M. VAUCLAIN, 0F PHILADELPHIA,

PENNSYLVANIA, ASSIGNOR TO THE BALDWIN LOCOMOTIVE wonxs, or PHILADELPHIA, PENNSYLV NIA, A 00320- narrou or PENNSYLVANIA.

. Locomo'nvn Patented'Feb. 8, 1916.

Application filed November 18, 1914. Serial No. 872,841.

To all whom it may concern:

Be it known that I, SAMUEL M. VAU- oLAIN, a citizen of the United States, residing in Philadelphia,Pennsylvania, have invented certain Imp tives, of which the following is a specification. I My invention relates to certain improveof the centipede type, i. e., the type in which there are three pairs of cylinders. In this instance there are three independent frames connected by articulated joints and two cylinders are mounted on each frame, one at each side of the locomotive. There are eight driving wheels for each set, but it will be understood that the construction may be modified without departing from the essential features of the invention.

-One object of the invention is to couple the cylinders so that one high pressure cylinder will exhaust into two low pressure cylend of the locomotive and the other high pressure cylinder will exhaust intothe two low pressure cylinders atthe opposite end of the locomotive.

Another object of the invention is to make all of the cylinders of the same size, thus rovements 1n Locomomaterially economizing in the cost of the manufacture of a locomotive.

A stillfurther object of the invention is to arrange the cylinders so that the pipes leading from the boiler to the high pressure cylinder will be fixed in relation to the cylinder and boilerwhile the jointed pipes will carry the low pressure steam leading from the high pressure cylinder to the low pressure cylinders.

These objects, and other advantageous ends, I secure as hereinafter set forth reference being had to the accompanying drawings, in which:

Figure 1 is a side view in diagram, illustrating my invention as applied to a centipede type of locomotive; and Fig. 2 is a lan view of the cylinders and their connecting pipes.

Referring to the drawings, 1 is the boiler frame 7 of a locomotive, having a fire box 2 at one end and a smoke box 3 at the opposite end.

4 is the cab of the locomotive 1n the present instance.

5 is the tender.

6 is the intermediate frame. ward frame and 8 is the rear 7 is the forframe. These frames are connected together by articu-' lated joints, as fully set forth in the patent granted to George R. Henderson, No. 1,013,771, dated January 2, 1912.

' The boiler is rigidly secured to the central frame 6 and swings over The rear frame carries the tender 5. Mounted on the intermediate frame are the high pressure cylinders 9 and 10, one located on one s1de of the locomotive and the ,other located on the opposite side, as clearly illustrated in Fig.

2. Each .of these cylinders is provided with a steam chest 11 of any of the ordinary types. On the forward are mounted the low pressure cylinders 12 and on the rear frame 8 are mounted the low pressure cylinders 13.

14 is a pipe leading from the steam dome of the boiler 1 through the smoke box'and is connected to pipes, one on each side of the locomotive, asshown in Fig. 2. The pipe 14 may be connected, as shown, to a superheater 16 having pipes the tubes of the boiler. The pipes 15 are rigidly connected both with the boiler and with the steam chest of the cylinders 9 and 10, as the frame 6 on which the cylinders are mounted is rigidly secured to the boiler so that there is no need of any split joints, or-other loose connections.

The cylinder 10 exhausts into a pipe 17 leading to the steam chest of the'low pressure cylinders 12 at the forward end of the locomotive. As steam from the cylinder 10 exhausts into bothcylinders 12 it acts expansively in said cylinder. The pipe 17 is flexibly connected at 18 to the cylinder structure 19 of the high pressure cylinders 9 and 10 and there is a flexible joint 20 in said pipe near the low pressure cylinders 12 as the frame 7, on which the. cylinder 12 is the front frame 7.v

which extend into mounted, is ivotally connected to the frame 6 on which the cylinders 9 and 10 are mounted. Low pressure steam passes through this pipe and it can be packed against leakage, which is practically impossible when a telescopic and jointed pipe is used for the passage of the high pressure steam. The h1gh pressure cylinder 9, in the present instance, exhausts into a pipe 21 leading to the steam chest of the low pressure cylinders 13 and the pipe is flexibly connected at 22 with the structure 13 of the low pressure cylinders and has a telescopic joint 23. The low pressure cylinders 12 exhaust through a pipe 24 and through the nozzle 25 into the smoke box of the boiler 1, acting to create a draft through the stack and the boiler. The cylinders 13 exhaust through a pipe 26 whlch is connected to the exhaust pipe 27 at the rear of the tender. Intermediate of the pipes 26 and 27 is the feed water heater 28, located under the tender. This feed water heater is connected with the water compartment of the tender and with the water supply of the boiler.

Bythe above construct1on, 1t Wlll be understood that high pressure steam passes from the boiler directly to the high pressure cylinders which are rigidly connected to the cylinders carried b the frame on whlch the boiler is also rigid y mounted and both sets of low pressure cylinders, which are pivoted to the central frame, are connected respectively to the two high pressure cylinders through the flexible plpes and as these flexible pipes convey the low pressure steam there is not the same danger of leakage as there would be if they conveyed the high pressure steam.

While I have illustrated the exhaust from the rear cylinders as passing through the feed water heater, and the main steam pipe 14 as connected with the superheater 16, these elements may be omitted without departing from the essential features of the invention.

I claim:

1. The combination in a locomotive, of three pairs of cylinders spaced apart; a boiler; high pressure pipes leading from the boiler to a central pair of cylinders; a low pressure pipe leading from one of the high pressure cylinders to the two low pressure cylinders at one end; and a second pipe leading from the other high pressure cylinder to the low pressure cylinders at the opposite end.-

2, The combination in a locomotive, of three frames pivotally connected; driving mechanism on each frame; two cylinders on each frame; a boiler rigidly mounted on the central frame and overhanging the forward frame; two pipes leading from the live steam supply of the boiler to the cylinders hausting into the smoke box 0 on the intermediate frame; a flexibly connected pipe leading from cm of said cylinders on the intermediate harm to the cylinders on the forward frame; and a fiexibl connected pipe leading from the other cy inder on the inter-medlate frame to the two cylinders on the rear frame.

3. The combination in a locomotive, of three frames connected together by articulated joints; independent driving mechanism mounted on each frame; tw-o cylinders mounted on each frame, all of the cylinders being of the same diameter; a boiler mounted on the intermediate frame and overhanging one of the other frames; two high pressure pipes leading from the steam supply of the boiler to the cylinders on the intermediate frame; a pipe leading from one of the intermediate cylinders to the two cylinders at the forward end of the locomotive; and a pipe leading from the other cylinder on the intermediate frame to the cylinders mounted on the rear frame.

4. The combination in a locomotive, of three frames connected together by articulated joints; independent driving mechanism mounted on each frame; two cylinders mounted on each frame; all of the cylinders being of the same diameter; a boiler mounted on the intermediate frame and overhanging one of the other frames; two high pressure pipes leading from the steam supply of the boiler to the cylinders on the intermediate frame; a pipe leading from one of the intermediate cylinders to the two cylinders at the forward end of thelocomotive; a pipe leading from the other cylinder on the intermediate frame to the cylinders mounted on the rear frame; the forward 0 linders exthe boiler; and a feed Water heater through which the exhaust passes from the rear cylinders.

5. The combination in a locomotive, of three frames connected together by articulated joints; driving wheels mounted on each frame; two cylinders mounted on each frame and connected to the driving wheels so that the mechanism on each frame is in dependently driven; a 'boiler mounted on the intermediate frame and overhanging the forward frame; a tender mounted on the rear frame; a pipe leading from the steam dome of the boiler; two high pressure pipes leading from said pipe to the steam chest of the cylinders on the intermediate frame; a flexibly connected pipe leadin from the exhaust side of one of said cy inders to the steam chest of the forward cylinders; a flexibly connected pipe leading from the cylinder on the intermediate frame to the steam chest of the low pressure cylinders on the rear frame; a ipe leading from the exhaust side of both fbrward low pressure cylinders to the smoke box of the boiler, said pipe having a. flexible connection; a pipe leading from name to this specification, in the presence of ghedexhaust side of both rein cylinders; a two subscribing witnesses.

ee water eater connecte to sai pipe; V and an exhaust pipe connected with the feed SAMUEL VAUCLAIN 5 water heater and terminating at the rear of Witnesses:

the tender. Jerm- P. Sms,

In testimony whereof, I have signed my KENNETH Rusn'ron.

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