US1181560A - Locomotive-stoker. - Google Patents

Description

A. R. AYERS.

LOCOMOTIVE STGKER.

APPLICATION FILED 1AN.11, 1915.`v

Patented May 2, 1916.

4 SHEETS-SHEET 1.

Mm A f E mm ma E imm A. R. AYERS.l

LOCOMOTIVE STOKER.

APPLICATION FILED 1AN.11. |915.

Patented May 2, 1916.

4 SHEETS-SHEET 2 NN. NN

THE COLUMBIA PLANOGRAPH co.. WASHINGTON. D. r..

y A. R. AYERS. LOCOMOTIVE STOKER.

APlPLlCATlOYN FILED JAN. 11, 1915.

Patented May 2,1916.

4 SHEETS-SHEET 3. 1

-A. R, AYERS.

, LOCONIOTIVE STOKER.

APPLICATION FILED JAN.11. 1915.

Patented May 2, 1916.

4 SHEETS-SHEET 4.

AUGUSTINE R. AYERS, 0F CHICAGO, ILLINOIS, ASSIGNOR 0F ONE-HALF TO JOHN J. BERNET, OF CHICAGO, ILLINOIS.

LOCOMOTIVE-STOKER.

Specication of Letters Patent.

Patented May 2, 1916.

Original application iiled May 26, 1913, Serial No. 769,840. Divided and this application filed January 11,

To all whom t may concern:

Be it known that I, AUGUSTINE R. AYERs, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Locomotive-Stokers, of which the following is a speciiication.

My invention relates to locomotive stokers and has particular reference to a construction first disclosed in my co-pending application, Serial No. 7 69,840, filed May 26, 1913, of which this is a division.

A particular object in the construction of chain-grate stokers for locomotives is in the provision of means for supporting the grate in its proper relation to the boiler'. IVhile the boiler, the fire box and the grate are each supported by the frame, each thereof is subjected to different temperatures and the degree of expansion and contraction will vary accordingly. Therefore means must be provided for taking care of such variation, the result in the present instance being secured by carrying the chain grate solely on the frame and providing a sliding connection between this element and the fire box or water legs of the boiler. Thus the two elements may expand and contract independently and without interference one with the other.

. A further object is in the provision of means for delivering the coal from the tender directly to the upper surfaces of the chain grate and beneath the usual firing deck of the locomotive. It has heretofore been considered necessary to deliver the coal at a point above the point of use, some form of hopper being used and allowing the material to feed by gravity directly upon the grate, or upon or into the distributing mechanism. In my construction the coal is delivered by a chute which is inclined upwardly and after being delivered upon the grate is spread or distributed beneath the deck of the locomotive and thereby without interfering with hand firing when necessary.

The invention will be more readily understood by reference to the accompanying drawings, wherein;

Figure 1 is a plan view of a locomotive Stoker constructed in accordance with my invention; Fig. 2 is a side elevation thereof partly in section; Fig. 3 is an elevation showing the grate-supporting frame and the Serial No. 1,554.

means of attachment to the engine frame; Fig. 4 is a section on the line 4-4 of Fig. 2; Fig. 5 is a section on the line 5-5 of Fig. 2; Fig. 6 is a section on the line 6-6 of Fig. 2, and, Fig. 7 is a section on the line 7-7 of Fig. 2.

Referring more particularly to the drawings it will be seen that the engine frame may consist of longitudinal members 10, to which are bolted suitable brackets 11, 12, 13, 14, and intermediate bars 11b, 13b, 14", which support certain castings 13, 14a. Secured to the upper surfaces of brackets 11, 14, and bars 11b, 14h, are castings 15, 15a, 16, 16a, which provide bearings for shafts 17, 1S. These shafts carry suitable sprockets 19, and a chain grate 20. This grate moves between plates 21, at the sides and sectional bar 22, at the middle, as best shown in Fig. 3. The construction of the grate is not herein claimed and will not be specifically described.

As noted the grate is supported wholly on the brackets l1, 13, 14, and intermediate bars 11b, 13b, 14h, which brackets are secured to the engine frame, and that none of the weight of the grate is carried by the boiler. The side plates 21, as best shown in Figs. 5 to 7 inclusive, are provided with inclined portions 23, lying against but not secured to the water legs 24, of the boiler, thus providing for a sliding connection therebetween and permitting expansion and contraction as required. Inasmuch as the grate extends to the rear a considerable distance beyond the rear wall of the boiler or fire box, and as the grate is substantially the full width of the fire box, no means can be provided for supporting the boiler at its rear end in the usual manner. I have therefore provided an extension 25, on the bracket 12, this extension being grooved and accommodating a roller 26. The mud ring 27, of the boiler is similarly grooved at its lower edge and the boiler rests upon the roller 26. The flanges of a channel 27a, similarly engage the mud ring and the bracket 25, and prevent separation thereof although permitting longitudinal movement as required for expansion and contraction. 'As best shown in Figs. l and 2, the rear end of the grate extends past thefrear end 28, of the boiler, and is underneath the firing deck 29, located at the usual elevation. Likewise, the usual re door 30,

is provided, which is not interfered with in my construction. rI`he coal is delivered beneath the firing deck and directly to the top surface of the grate by means of a conveyer 8l, mounted within a chute 32, the chute fitting loosely within an opening in .the wall 33. The wall 33, and the side walls 3l, deline a coal receiving and distributing space beneath the deck of the locomotive, the floor of which space is constituted by the movable chain grate. The walls 38, 3i, also serve to support the deck 29. and the cab structure. rIhe coal is delivered directly onto the grate and is distributed by the two transverse screw conveyers 35, as best shown in Fig. 1, the height of which may be adjusted by means of the screws 36.

By reason of the construction shown the Stoker' may be applied to an engine and supported directly upon the frame and fuel mechanically delivered thereto and distributed thereupon without interference with the fire box or boiler and without interfering in any way with the available space in the cab. This is important as it has heretofore been considered necessary to deliver the coal at a point above the grate, allowing it to feed thereto by gravity. This required much of the available space in the cab and interfered with or prohibited hand firing through the usual firing opening. The coal is delivered directly to the grate by means of the chute which is loosely 'fitted in the wall defining the space. This permits of the necessary iexibility as between the tender and engine.

Obviously modifications may be made in the construction shown and such modiiications as are within the scope of my claims I consider within the spirit of my invention.

I claim:

1. In a locomotive Stoker, the combination of a fire box having a feeding opening, a deck to the rear of said fire box and so located as to permit hand firing through said opening, a chain grate extending into and substantially of the Width of said fire box and beneath said deck, the space beneath the deck and above the grate forming.

a coal receiving and distributing space and means beneath said deck for laterally distributing fuel delivered onto said grate.

2. In a locomotive Stoker, the combination of a fire box having a feeding opening, a deck to the rear of said ire. box and so located as to permit hand firing through said opening, a chain grate extending into said fire box and beneath said deck, the space beneath the deck and above the grate forming a coal receiving and distributing space, and means for distributing coal laterally over said grate.

3. In a' locomotive Stoker, the combination of a lire box having a feeding opening, a deck to the rear of said fire box and so located to permit hand tiring through said opening, a chain grate extending into said fire box and beneath said deck, the space beneath the deck and above the grate forming a coal receiving and distributing space, means for distributing coal laterally over said grate, Iand meansfor delivering` coal upon the surface of said grate near the longitudinal center line thereof, Said delivery means being located entirely below said deck.

a. In a locomotive stoker, the combination of a .tire box having a feeding opening, a deck to the rear of said fire box and so located as to permit hand firing through said opening, a chain grate extending into said fire box and beneath said deck, the space beneath the deck and above the grate forming a coal receiving and distributing space, and means for distributing coal laterally over said grate after said coal has been delivered upon said grate, the walls defining said space serving to support said deck and Superstructure.

5. In a locomotive Stoker, the combination of longitudinally extending locomotive frame members, a. fire box above said frame and of a width greater than said frame, a chain grate including frame members in sliding engagement with said fire box, and means rigidly securing said chain grate frame members to the engine frame.

6. In a locomotive Stoker, the combination of longitudinally extending engine frame members, supporting members secured to said frame members, a fire box of greater transverse width than said frame members, a chain grate of a width substantially equal to the width of the fire box, said chain grate in cluding framemembers secured to said sup porting members and in sliding` engagement with the inner walls of said lire box, Such supporting members serving as the sole supporting means for said grate.

7. In a locomotive Stoker, the combination of longitudinally extending engine frame members, a fire box, a bracket projecting upwardly and outwardly from each frame member, longitudinally extending grate-supporting frame members, the upper edges of which are in sliding engagement with the inner walls of the fire box, and a chain grate mounted on said grate frame members, the grate and supporting frame members being carried solely by said engine frame.

AUGUSTINE R. AYERS.

Vitnesses:

E. C. HARDY, G. E. PARKS.

Copies o! this patent may be obtained for five cents each, by addressingthe Commissioner of Intenta,

Washington, D. C.

Images