US1634335A

US1634335A - Engine

Info

Publication number: US1634335A
Application number: US737735A
Authority: US
Inventors: Henry E Muchnic
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-09-15
Filing date: 1924-09-15
Publication date: 1927-07-05
Anticipated expiration: 1944-07-05

Description

July 5, 1927- H. E- MucHNlc ENGINE Filed Sept. 1 1924 2 Shoots-Sheet 2 atented July 5, 1927..

NITED STATES PATENT." OFFICE.

HENRY E. MUGHNIO, 0F ATCHISON, KANSAS.

ENGjtNE.

Application filed September 15, 1924. Serial No. 787,735

The present invention relates 'to engines of the type used in locomotives.

Heretofore, in constructions of this type, the parts of the engine were separately formed and secured together, and it has been impossible to successfully make the structure in a single integral construction.

The present invention comprehends the making, preferably by casting, of the parts integrally into a single construction ,and preferably of cast steel. In this way less material may be used and greater strength obtained, as well as the eliminating of flanges,

bolts,rivets, and the likesecuring means, as also the eliminating of machining, aligning and the fitting of parts. The working loose of the pieces will also be avoided and greater rigidity asa whole will be secured, as well as a permanency of relation of the parts. In the case of using cast steel greater tensile strength is had, and there is less liability to breakage and fracture as is the case when using cast iron. If any damage occurs to any portion of the structure cast from cast steel, it can be readily repaired by welding, as by autogenous or electric welding, without the loss and replacement of the portion affected, and the incident labor and'time that would be necessary for machining, aligning and fitting the new part. Such material also has resilience, and hence can.

be subjected to greater stresses, indefinite contractions, and expansions from heat changes, and thelike, without danger of injury; In this way the present invention eliminates liability of fractures and reduces the necessity of special designs, such as for strength and distribution of forces, and also requires less weight of material. It will last indefinitely until worn out, and will not re:

quire replacement. Bythis invention a single integral structure of lighter weight and greater strength may be had with a great economy'of .labor and cost.

It is, therefore, among the objects of the the parts so asto eliminate flanges, bolts,

rivets, and "like securing elements, and the incidental cost and labor for making and the steam inlet and exhaust later appear and are tegrally forming the cylinders and the heads thereof; to. preferably form the guide studs for the cross-head guides, integrally with' the heads such as the back head of each cylinder; to integrally form the cross-head guides and brackets therefor to a head of the steam chest, such as the back head thereof; to preferably form the back head of the steam chest integrally with the steam chest body; to form the heads of the cylinder and respective steam chest integral; to form the cylinder, steam chest and the heads therefor in a single integral piece; to form the frame or transverse member between the cylinders and steam chests, on each side of the locomotive, integrallywith the same; to provide the frame or transverse member with an integral center casting or hearing adapted to be engaged with the truck or frame of the locomotive; to provide said member with integral frame fits or similar means for securement to the side member of the truck or locomotive frame; to provide for forming as'sages integrally with the cylinders an the transverse frame member, and 'also preferably together, the juncture of the two forming a common outlet capable of suitable cooperation with the boiler stack; to form the boiler saddle integrally with the transverse member, preferably at the juncture of the exhaust conduits; to provide for a novel frame or transverse member, preferably in the form of a box or hollow structure having spaced front and rear walls, as well as upper and lower walls, whereby greater strength and rigidity mav be had; to provide a vertical post or wall between the center hearing and the juncture of the exhaust conduits, preferably integrally therewith; to provide for casting-in a guide member or surface, such as a bushing of cast iron ineach cylinder, whereby the piston may be guided on the bushing, and to provide for such other objects, advantages and capabilities as will inherently possessed by the invention. i 1

In the drawings illustrating one form'of the invention Fig. 1 is a part top plan and part horizontal section of a structure constructed in accordance with the invention.

Fig. 2 is an end View of the same.

Fig. 3 is a transverse sectional view of the same. v

Fig. 4; is a vertical longitudinal sectional view of a' cylinder and steam chest.

integral or cast therewith, a back head 6 for the cylinder, and a back head 7 for the steam chest. To the back head 6 may be integral or cast therewith guide studs 8, to which.

may be connected the forward ends of the cross-head guides in any suitable manner,

and to the back head 7 is integrally cast a bracket 9, provided witha guide 10 for the cross-head of the valve operating mechanism. To each steam chest leads a steam inlet 11 suitably connected with a central chamber 12 of the steam chest, from which connection may be had to a cylinder through the

passages

13 and 1 1, when the valve in the steam chest is moved to proper position.

When, the latter valve is moved in an op posite position, or reciprocation,

passages

13 and 14 may then communicate with exhaust chambers 16 and 17, respectively, connecting with exhaust passages or conduits 18 and 19, and joining with similar conduits from the other cylinder and steam chest, into a common outlet 20, which may extend into the lower part of a stack of a locomotive. Steam inlets 11 and exhaust passages 18 and 19 are formed or cast integrally .with the steam chest, as clearly shown upon the drawings.

At the juncture of theoutlet 20 and the outlet portions of'the exhaust passages, is preferably integrally cast an arc-shaped saddle 21, upon.which the boiler may rest, in a manner well understood.

The cylinders and valve chest are usually located on oppositesides of a locomotive,

1 and for the purpose of forming the mechanism or construction in one single or in- -tegral piece they are connected together by a cross member 5, preferably in the form of a hollow or box like construction, having for- I ward and rear walls 22 and 23, as well as an upper wall 24' and a lower wall 25, to the latter of. which is integrallyforme'd or cast a center bearing 26, designed and adapted for connection or engagement with the truck frame of the locomotive. On the lower wall "25 arealso preferably formed frame fits 27 and '28, which are designed-and adapted for 'securement to the longitudinal side frame of .the' locomotive bed or truck esa-sat therefor. Between the juncture of the exhaust conduits and the outlet 20 and the center bearing 26, preferably stands vertically an integral longitudinally extending wall 29, which also aids in supporting the outlet portions of the exhaust conduits and, strengthening the .cross member, the ends of the wall 29 being preferably formed integral with the front and rear walls 22 and 23.

All of these parts or portions are preferably of cast steel, and all formed in one single pouring in a suitable'foundry and mold. the molten material-being heated at a sufficient temperature,so that the same may be poured to produce a single integral cast ing. In this way all. the parts are permanently related to each other, so that there is no necessity of adjusting the parts and the bolting together thereof, as in previous constructions, and extra material is avoided, such as flanges, bolts, rivets, and the like. If any portion of the structure should be damaged by reason of collision, or other-. wise, the same may be readily repaired by welding the part damaged, without necessitating the replacement of-the whole casting, or any part thereof. Great rigidity and- 1 lightness of structure is obtained with much less material than heretofore required. The installation or application of a single cast-- ing of this kind to a locomotive requires but a small fraction of thelabor and cost here- While I have described and upon the drawings shown an illustrative errrbodi ment of the invention, it is to beunderstood that the latter is not limited thereto, but

.comprehends other constructions, details and arrangements of parts, without departing from' the spirit thereof.

Having. thus described my invention, 1 claim:

1. In a locomotive engine having cylinders provided with inlet and'exhaust steam passages, a transverse member connected to the cylinders, andhaving spaced walls forming a box like structure, all integrally connected to the cylinders and for providing a rigidand strong connecting member between the cylinders, said transverse member having an integral center bearing for connection to a truck frame of the locomotive.

2. In a locomotive engine'having cylinders provided with inlet and exhaust steam passages, a transverse member connected to the cylinders, and having spaced walls, formin'g a box like structure, all integrally connected to the cylinders and lorproviding a rigid and strong connecting member between the cylinders, and a boiler saddle integrally formed with said member. 1

3. In a locomotive engine having cylinders provided with inlet and exhaust steam passages, a transverse member connected to the cylinders, and having spaced walls forming a box like structure, all integrally connected to the cylinders and for providing a rigid and strong connecting member between the cylinders, said transverse member having the inlet and exhaust passages integrally formed with said member, said exhaust passages'terminating in a common outlet integrally formed therewith.

4:. lln a locomotive engine having cylinders provided with inlet and exhaust steam passages, a transverse member connected to the cyinders, and having spaced walls forming a box like structure, allintegrally connected to the cylinders and for providing a rigid and strong connecting member between the cylinders, said transverse member having the inlet and exhaust passages integrally "formed with said member, said exhaust passages terminating in a common outlet integrally formed therewith, and a boiler saddle integrally formed with said outlet.

5. A locomotive engine having spaced cylinders and steam chests, and a transverse member formed integrally with said cylinders and said chests, said member having integral means for connection to a truck of the locomotive, exhaust conduits integrally formed with said member and said cylinders and chests, and a longitudinal element integral with said member and'said conduits for supporting said conduits. f

6. A locomotive engine having spaced cylinders and steam chests, and a transverse member formed integrally with said cylinders and said chests, said member having an integral center bearing for engagement with a truck of thelocomotive, exhaust conduits integral with the cylinders and chests and with each other and with said member, and

a vertical supporting element integral with siaid bearing and the juncture of said conuits.

7. In an engine of the character disclosed, a cylinder, a steam chest and back heads for said, cylinder and chest formed integrally with each other and with said cylinder and said chest, and cross-head guide members formed integrally with said heads.

8. ln combination, a locomotive steam cylinder member, and a steam chest member, each having a head member, all of said members being formed integrally, there being integral brackets on said heads for guiding elementsmovable in said cylinder and chest,

respectively.

9., A one-piece casting comprising a locomotive steam cylinder, a steam chest therefor, said cylinderand chest each having an individual integral head, there being brackets .formed on the exterior of said heads for supporting a cross head guide and for guiding a valve stem, respectively,

10. ln a cast steel cylinder for locomotives, a head formed integrally with the cylinder, a cross head guide bracket formed integrally on the exterior of said head, and ribs extending between said cylinder, head, and bracket and reinforcing said head and bracing sai'd braclret,

11. lln combination, a locomotive boiler saddle, a steam cylinder, a steam chest, and brackets for guiding the cross head and for guiding the valve stem, all of said parts being cast integrally.

12. In combination, a locomotive boiler saddle, a steam cylinder having a rear head, a steam chest having a rear head, and brackets for guiding the cross head and for guiding the valve stem, all of said parts being cast integrally.

ln-witness whereof, ll hereunto subscribe my name to this s ecification,

liEhllitY E, MUCHNIC.