US1829044A

US1829044A - Locomotive

Info

Publication number: US1829044A
Application number: US317620A
Authority: US
Inventors: Mellen C M Hatch
Original assignee: Standard Stoker Co
Current assignee: Standard Stoker Co
Priority date: 1928-11-06
Filing date: 1928-11-06
Publication date: 1931-10-27
Anticipated expiration: 1948-10-27

Description

Oct. 27, 1931.

M. c. M HATCH LOCOMOTIVE Filed Nov. 6. 1928 5 Sheets-Sheet. 1

INVENTOR /Ke//e/z 6.4% fafa/5 ATTORNEY hm. NN

Oct. 27, 1931. M. c.-M. HATCH 1,829,044

LOCOMOTIVE Filed Nov. e, 192s 5 sheds-sneer 2 IN VEN TOR /f//en a /f/ya fm B Y A TTORNEY Oct. 27, 1931. M, M HATCH 1,829,044

LOCOMOTIVE Filed Nov. 6, 1928 3 Sheets-Sheet 3 A TTORNE Y Patented Oct. 27, 1931 UNITED STATES MELLEN PATENT orpi-ica C. .'MI.v HATCH, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO STANDARD ySJOKEIR COMPANY, INCORPORATED, A CORPORATION OF DELAWARE LOCOMOTIVE Application filed November 6, 1928. Serial No..317,620.

The invention relates to locomotives provided with mechanical stokers, its objects being to strengthen the locomotive, toprovide improved means for the introduction of the fuel by power and for convenience in hand iring, and to secure other objects which will be pointed out in connection with the description. j

A preferred embodiment of the invention is hereinafter described and is illustrated in the accompanying drawings in which Fig. 1 is a detail, central, longitudinal, vertical section of the rear end of the locomotive and the forward end of the tender; f

Fig. 2 is a detail view of the same parts, partly in plan and partly in plan section on ,I the line 2 2 of Fig. 1;

lig. 3 is a detail on the line 3-3 of Fig. 1; an y Fig` 4 is a detail view in perspective of a portion of the foundation ring of a locomotive boiler and an integral arch formed thereon for enclosing the fuel feed openings.

The frames of the locomotive and tender are shown conventionally at 10 and 11. The backhead of the boiler of the locomotive is shown at 12; the firebox thereof at 13; the grates are indicated at 14; the cab firing floor or deck,at 15; and the tender deck at 16.

The walls of the boiler including its backhead which enclose the firebox, are, as usual, hollow and are bounded at the bottom by a foundation or mud ring 17. As usual, the foundation ring may be formed of a heavy casting or forging, and in carrying out the present invention, it is provided with an integral upstanding arch 18 which encloscs theI opening for the admission of fuel and to i which the inner and outer sheets 19. 20 of the backhead may be secured by usual means, Without deviating from the common form,

, except that they are suitably cut away to pro.

an openable door (notshown) of any suitable' form.

The space below the plate 21 and above the foundation ring is open for the accommodation of the stoker conduit and the admission of air for cooling the same. The opening in the backhead may be increased in the vertical dimension,without carryingit too high for convenient hand iring by off-setting the` foundation ring downwardly across its bottom as indicated at 24;, see Figures 3v and 4.

The rear portion of the fuel conduit may be of any preferred form, being shown as comprising a trough 25 located below the floor ofthe tender and receiving fuel from an aperture therein and being provided with a conveyor screw 26 and a suitable crushing device 23 cooperating therewith. Leading from the forward end of the trough 25 is a tubular conduit comprising a rearward section 27 universally jointed to the forward end of the trough 25 and the forward section 28 loosely telescopically fitting upon the rearward section and provided at its forward end with one element of a ball joint 29. The forward portion'of the conduit comprises two freely telescoping sections 30, 3 1, the formerI having at its rearward-end an element 32 of a ball joint which engages the element 29 and is seated upon and rigidly attached to a chair 33 carried by a frame member as 10 of the locomotive frame. The section 31 eX- tends through the lower portion of the a erture in the backhead which is enclose the arch 18 and within the firebox takes the form of an upwardly opening elbow or nozzle fi from which fuel is delivered into the fire- This elbow is seated upon and rigidly secured to a chair 35 attached to the portion 24 of the foundation ring which spans the lower end of the arch 18. A section 36- of the screw conveyor is located within the intermediate section of the conduit comprising the elements 27, 28, and a third section 37 is located within the-

conduit sections

30, 31 terminating at the base of the elbow 34. The three conveyor screw sections are united by universal joints and the whole is driven from a suitable motor, conventionally shown at 38, by means of a shaft 319 connected with the rear end of the conveyor screw in any well known manner. lhe elbow 311i is protected. from the furnace heat by a gratedv shirt l0 eirtending `from its upper end to the fireboi; grate. 'lhe portion of the fuel conduit which is carried by the locomotive is preferably ll-shaped, being flattened at the top, for the purpose of checlring the tendency of the fuel to rotate and to yarn the elbow.

lluel issuing from the elbow or nozzle 3e.- is scattered over the flrebon grate by steam blasts issuing from a bon tl located imine diately above the opening of the elbow and. at its rearward side, and supplied with steam through a plurality of pipes t2 leading from 'a steam chest secured to the outer sheet of the baclrhead and which may be connected as by means of a pipe all directly with the steam dome of the locomotive.

Each of the pipes 42 is preferably provided. with an individual controlling valve as indicated at l5 whereby the trimming of the fire may be facilitated by cutting of' the pipes leading to the box 4l which scatter the fuel over portions of the grate which may have been overfed with fuel.

r.lhe described arrangement for the admission of fuel through a common opening in the baclrhead facilitates the attachment of the steam pipes associated with the fuel distributor without requiring them to be extended downwardly under the foundation ring in accordance with the present practice in connection with stolters of the scatter feed type.

@ne of the serious dimculties encountered in mechanically tiring a locomotive through itsbaclrhead is due to the expansion of the boiler under the influence of the furnace heat, this expansion moving the baclrhead backwardly a considerable distance, putting the Stoker conduit under severe strain and sometimes causing its fracture or distortion. This diculty is overcome in the construction above described by forming the portion of the conduit which is carried by the locomotive in two freely telescoping sections, each being rigidly and independently secured to the locomotive.

'lhe inverntionI is applicable both to new and old locomotives, the latter being easily remodeled for its incorporation. lin old locomotives to which the invention is applied, it may sometimes be found desirable to put in an entirely new foundation. ring or the arch t8 may be welded on to the existing foundation ring.

lthile the construction shown and described is highly efficient and desirable, the invention may be differently embodied within its scope as dened by the appended claims.

l claim:

l. il locomotive having a boiler including a lireboir, a foundation ring bounding the lower margins of the walls of the firebon, such neoaoee ring having an integral upstanding ar li po:n tion, said portion and ring entirelyv bounding a fuel admission opening in the baclrhead of the fireboiz.

Qi. A boiler including a fireborr, a foundation ring shaped to correspond to the ground plan of the lirebor, the baclhead of said tirebon having a fuel admission openin and said ring having an e'" ended portion entirely bounding said openi` 3. its a newl article of mani 'f2.cture, a loco motive foundation ring shaped to correspond to the ground plan of a lireboir having an integral upstanding :h formed in its rear transverse section, said arch and said rear transverse section entirely bounding an opening'adapted to provide access for mechanical and manual firing of fuel to the tireboit.

4. its a new article of manufacture,

a lire bor. foundation ring having an upstanding' portion with a fuel admission opening formed. therethrough, said ring together with. its up standing portion entirely bounding said ad mission opening.

5. fis a new article of manufacture, a boiler foundation ring having a portion with liring opening of a boiler formed therein portion entirely bounding said opening.

6. As a new article of manufacture, a boiler foundation ring comprising1 four side sections, said ring having an upstanding portion formed on one of said sections, said arch extending above said ring section a height -suiiicient to provide an opening theren through for mechanical and manual :tiring of fuel to a boiler, said arch portion together with said. ring section on which it is forme l entirely bounding said opening.

'7. As a new article of manufacture, the rearward transverse section of a boiler foundation ring having formed centrally thereof an upwardly extended portion. tirely bounding and forming an archway adapted to form the firing opening of boiler baclwall.

8. As a new article of manufacture, a boiler foundation ring having formed with one of its sections an extended portion entirely' bounding and forming an opening in said `ring adapted to form a firing opening of a boiler.

9. ln combination, a boiler including a fire box having hollow walls, a foundation ring bounding the lower margins of said walls, said ring formed with an extended portion entirely bounding and. forming a fuel admission `opening' into said lirebox, and stelt-er lconduit positioned in said opening mounted. on said ring.

l0. ln combination, a boiler including iireboX having hollowwalls, a foundation. ring bounding the lower margins of said walls, said ring formed with an upstanding extended portion entirely bounding andsaid ring till llltl :lill

forming an elongated fuel admission opening through the rebox backwall, a firing floor extending rearwardly from such backwall and disposed in a horizontal plane intermediate the lower and upper margin-s of said opening, said floor arranged with said opening to permit hand firing of fuel through the opening above the iioor, and a Stoker conduit positioned in said opening and mounted on l@ said ring.

11. In combination, a boiler including a ireboXV having hollow walls, a foundation ring bounding the lower margins of said walls, the backwall of said irebox having a l5 fuel admission opening extending upwardly from its lower margin, a firing floor extending rearwardly from the frebox backwall and disposed in a horizontal plane intermediate the lower margin of'said backwall and the upper margin of 'the opening therein whereby fuel may be introduced manually above said floor and mechanically from below said floor through such admission opening, and an upstanding extension of said ring bounding said admission opening above and below said floor.

In testimony whereof I aiiix my signature.

MELLEN C. M. HATCH.