US2135249A - Distributor head for stokers - Google Patents

Description

Nov. 1, 1938. H. P. ANDERSON 2,135,249

DISTRIBUTOR HEAD FOR STOKERS Original Filed March 28, 1953 2 Sheets-Sheet l IN VEN TOR. Howard j? flnde/zson, decease Bernadine firm/arson, fxecu/rzz.

ATTORNEYS.

NOV. 1,1938. H, p, ANDERSON 7 2,135,249

' DISTRIBUTOR HEAD FOR STOKERS Original Filed larch 28. 1933 '2 Sheets-Sheet 2 INVEN TOR. 3 Howe/"cf B fina e/son, decease fi J Bernm/me find arson, Frau/flux.

AT ORNEYS.

Patented Nov. 1, 1938 UNITED STATES PATENT OFFICE- DISTRIBUTOR HEAD FOR STOKERS Delaware Original application March 28, 1933, Serial No.

Divided and this application April 1'7, 1937, Serial No. 137,470

10 Claims.

This invention relates generally to stokers and more particularly to stokers arranged to deliver fuel to the firing opening of a furnace and having a distributor head for projecting fuel over the fire in the furnace firebox by a blast of fluid under pressure. a

The principal object of the invention is to provide a novel form of distributor head particularly adaptable to the type of stoker described and a novel form of fuel feed casing arranged to accommodate the distributor head.

Another object of the invention is to provide a novel stoker construction wherein the pressure fluid distributor head is insert-able transversely through a side wall of the fuel feed casing and is mounted therein in a manner to be rotatable about its transverse axis and to be adjustable to any one of a number of positions.

With the above and other objects in view, the invention resides in the construction of the individual elements and their relation one with another as will be apparent from the following description when read in connection with the accompanylng drawings, wherein,

Fig. l is a view in vertical longitudinal section of a portion of a locomotive with the stoker shown in operative position, parts of the stoker being in. elevation and parts broken away; 7

Fig. 2 is a View taken on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary plan view of that portion of the stoker mounted on the firebox back- Wall;

Fig, 4 is a view in elevation of the stoker taken from within the firebox, with a portion broken away and a portion shown in section;

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 2;

Fig. 6 is a sectional view taken on the line t% of Fig. 5; and

Fig. 7 is a sectional View taken on the line 'I--1 of Fig. 5.

In the drawings, the locomotive is indicated generally by the numeral Ill and includes the main frame ll, the cab I2 and cab deck I3. At Hi, there is shown the backhead of the firebox i5 constituting a rear water leg of the locomotive boiler. A portion of the firebox grate is shown at it. The backhead I4 has an opening I! therethrough arranged to form both a hand firing opening and a stoker firing opening.

A stoker for transferring fuel from a tender, a portion of which is shown at I8, t the firing opening I1 is indicated as a whole by the numeral I9. The stoker I9 includes a riser or fuel feed casing 20 mounted within the. cab I2 on the backhead I4 of the firebox I in a manner'to surround the conventional firing opening H. The

casing 28 may be supported from the backhead It at its lower end by the bracket 2| and at its upper end or mouth portion 22 by the bolts 23 passing through the slots 24 in the lateral flange 25. The flange or frame 25 defines the discharge opening of the casing 26 and embraces the firing opening I'I.

From the firing opening H, the riser casing 2t slopes rearwardly and downwardly to a point below the cab deck I3. There its lower open end receives and is flexibly connected with the front end of a conduit section 26 leading from a source of fuel supply on the tender I8. A screw conveyor Zl, terminating at its forward end adjacent the lower end ofthe casing 20 conveys fuel forwardly from the tender I8 and forces it through the casing 29 to the firing opening. The screw conveyor 27 may be driven from its rearward end or intermediate its ends in any manner well known in the art. For purpose of illustration a driving engine 28 is shown mounted on the locomotive frame I I and a drive shaft 29 extends rearwardly therefrom and is operatively connected with the'screw conveyor through suitable gearing (not shown). V

' A fuel distributor plate 30 is secured to the fiange 25 adjacent the lower end of the mouth portion 22 of the casing 29 in any desired manher that will. permit of its ready removal. The plate 38 extends forwardly through the firing opening I I into the firebox I5. Fuel is projected across the plate 3b by pressure fluid issuing from a distributor head 3| located at the rear of the plate. A plurality of ribs 32 are provided on the upper surface of the plate 30 and are arranged to direct the projected fuel to all parts of the firebox.

A pair of wing 33 and 34 curve outwardly and upwardly from the sides of the rearward portion of the distributor plate 30 and are securely fastened to the flange 25 through their respective flanges 35 and 36 by suitable means, as by bolts 31. The wings 33 and 34 in effect form continuations of the walls of the mouth portion 22 of the casing 20 and extend into the firing opening thereby preventing coal from spilling over the sides of the rearward portion of the distributo plate.

The casing 20 is provided in its top, immediately rearward of the flange 25, with an opening 38 of sumcient size to permit entrance to be gained to the firebox for the purpose of inspecting the grates, and otherparts of the firebox and for eftion of a hook or rake for raking or cleaning the fire. A dome-shaped door 39 forms a continuation of the rear and side walls of the casing and ,a closure for theopening 38 and is mounted on the flange 25 to swing vertically'about a trans- What is claimedisf v j 1. In a firebox having a firing opening in an upstanding wall thereof, a stoker comprising a fuel feed casing having a fuel discharge opening in substantial register with said firing opening, said casing. having a transversely extending arcuate-shaped depression formed in its lower inverse axis, as for instance, on the rod 8 whichfi' ior r e a j ent i s ischar op a is journalled in the bearings 9.,

The mechanism for operating the door 39 com prises a hand lever 40 pivoted loosely on the pin 4| which projects laterally from a side of the casing 20 adjacent the flange 25 and in a plane below the axis about which the door 39 swings. A link 42 is pivoted loosely at one end on a pin 43 intermediate the pivoted endand the free end of the hand lever 40 and pivoted loosely on a pin 44 in the lug 45 of the 'door .39. Thus by raising.

the hand lever 40, the door 39 is opened through the medium of the link 42.

. In order to retain the door in any one of a number'of positions, a quadrant-shaped rack 46 is formed with the casing 20 and is provided with a plurality of notches 41. A rod 48 is movably mounted with the hand lever 40 and its one end is pressed against the curved surface of the rack 46 by the spring 49 and as the hand lever 40 is raised, the rod 48 will engage one of the notches 41 thereby retaining the hand lever 40 and door 39in position. To release the door 39, the rod 48 is removed fromengagement with the notch 41 by pressure of the hand on the extension 50 V of the rod 48.

tributorhead 3| which is providedwith a complementary arcuate-shaped surface 53.

I The distributor head is held in position at one end by the wall of the casing 20 bordering the opening 5| and at its other end by the lug 54 which is received in the opening 55 in the thickened wall portion 56 of the casing 20. The distributor head 3| "is adjutable about its transverse axis and. may be securedin any one of a number of positions by the bolt 5'! which passes through the arcuate slot 58 in the flange 59 of the distributor head and into the lug Won the casing 20. The lug 60 shown in section in Fig. 6 corresponds in shape to the flange 59 which appears in. Fig. 1; v

The distributor head 3|is provided with a flat concave rear wall 6| conforming to the shape of the wall of the casing 20 andia flat concave top wall 62 conforming with the shape of the wall of the mouth portion of the casing 20. The distributor head 3| is divided internally into chambers 63, 64 and 65, and openings 66, Gland 68 in the end wall of the head communicate respectively with the chambers 63, and 65 for the introduction of pressure fluid. That portion of the arcuate-shaped wall 53 of the distributor head that faces the firebox is provided with a plurality of jet openings 69. communicating with the chambers 63, 64 and 65. A plurality of supply pipes 10 conduct. pressure fluid to the chambers 63, B4 and 65 and may be provided with valves (not shown) for regulating the supply of pressure fluid to the chambers.

This application is a division of application Serial No. 663,131, filed March 28, 1933, now

Patent No. 2,081,113, granted May 18, 1937..

pressure fluid distributor head seated in said depression, said head having a complementary curved surface permitting said head to be rotated in said depression about a transverse axis.

2. In a firebox having a firing opening in an upstanding wall thereof, a stoker comprising a fuel feed casing having a fuel discharge opening in substantial register with said firing opening, said casing having a transversely extending arcuate-shaped depression formed in its lower interior surface adjacent its discharge opening, a

pressure fluid distributor head seated in said depression, said head having a complementary curved surface-permitting said head to be rotated in said depression about a transverse axis and means for securing said head in any one of a number of positions.

3. In a firebox having a firing opening in an upstanding Wall thereof, a stoker comprisinga fuel feed casing having a fuel discharge opening in substantial register with said firing opening,

said'casing having a transversely extending arcu ate-shaped depression formed in its lower interior surface adjacent its discharge opening, one side of said casing having an opening extending therethrough adjacent said depression, a pressure fluid head seated in said depression and insertable in position through the last named opening, said pressure fluid head having a complementary" curved surface permitting said head to be rotated in said depression about a transverse axis.

4. In a firebox having a firing opening in an upstanding wall thereof, a stoker comprising a fuel feed casing having a fuel discharge opening insubstantial register 'with said firing opening, said casing having a transversely extending arcuate-shaped depression formed in its lower interior surface adjacent its discharge opening, one side-of said casing having an opening extending therethrough adjacent said depression, a pressure fluid head seated in said depression and insertable 7 in position through the last named opening, said pressure fluid head having a complementary curved surface permitting said head to be rotated in said depression about a transverse axis and means for securing said head in any one of a number of positions.

5. Ina firebox having a firing opening in an upstanding wall thereof, a stoker comprising a,

fuel'feed casing having a fuel discharge opening in substantial register with saidfiring opening, said casing having a transversely extending arcuate-shaped depression formed in its lower interior surface adjacent its discharge opening, one side of said casing having an opening extending therethrough adjacent said depression, a pressure fluid head seated in said depression and insertable through the last named opening, said pressure fluid head having a complementary curved surface permitting said'head to be rotatedin said depression about a transverse .axis, a flange formed with one. end of said head and fitting against the exterior ofsaidcasing, said flange having a'slot formed therein, and means passing through said slot for securing said head to said casing in any one of a number of positions.

.6; In afireboxhaving a firing opening man upstanding wall thereof, a stoker comprising a fuel feed casing having a discharge opening in substantial register with said firing opening, a pressure fluid distributor head lying transversely within said casing across its lower wall and adjacent its discharge opening, a side wall of said casing adjacent its discharge opening having an opening extending theretlirough' permitting insertion of said head in operative position, said head being divided internally into a plurality of chambers, and being provided in its end wall ad- J'acent the opening in said casing side wall with an opening into each of said chambers for the introduction of pressure fluid, the side of said head facing the firebox having jet apertures communicating with said chambers for the discharge of pressure fluid.

7. In a firebox having a firing opening in an upstanding wall thereof, a stoker comprising a fuel feed casing having a discharge opening in substantial register with said firing opening, said casing having a transversely extending arcuateshaped depression formed in its lower interior surface adjacent its discharge opening, a pressure fluid distributor head seated in said depression, a side wall of said casing having an opening extending therethrough adjacent its discharge opening permitting insertion of said head in operative position, said head being divided internally into a pluralty of chambers and being provided in its end wall adjacent the opening in said casing side wall with an opening into each of said chambers for the introduction of pressure fluid, the side of said head facing the firebox having jet apertures communicating with said chambers for the discharge of pressure fluid.

8. As an article of manufacture a pressure fluid distributor head comprising a pair of end walls, a plurality of side walls included between said end walls, one of said side walls having an arcuate surface curving radially about an axis extending from one of said end walls to the other of said end walls, and an adjacent side wall having a concave surface curving radially about an axis extending perpendicularly to said first-named axis, said head being divided internally into a plurality of chambers, one of said end walls being provided with a plurality of openings therethrough, each opening communicating with a respective chamber, and a plurality of jet openings in said arcuate side wall adjacent its intersection with one of the other of said side walls communicating with said chambers.

9. As an article of manufacture a pressure fluid distributor head comprising a pair of end walls, a plurality of side walls included between said end walls including a side wall having an arcuate surface curving radially about an axis extending from one of said end walls to the other of said end walls, and a pair of side walls each having a concave surface curving radially about an axis extending perpendicularly to said first-named axis, said head being divided internally into three chambers, one of said end walls being provided with openings, each communicating with a respective chamber and a plurality of aligned jet openings in said arcuate side wall adjacent its intersection with one of said concave side walls, the centrally located jet openings communicating with one of said chambers and the jet openings at either side of the centrally located jet openings communicating with a respective chamber.

10. As an article of manufacture a pressure fluid distributor head comprising a pair of end walls, a plurality of side walls included between said end walls, one of said end walls extending beyond said side walls forming a flange, one of said side walls having an arcuate surface curving radially about an axis extending from one of said end walls to the other of said end walls, and the other of said side walls each having a concave surface curving radially about an axis extending perpendicularly to said first-named axis, said head being divided internally into a plurality of chambers, a plurality of openings in said flanged end wall, each opening communicating with a respective chamber, said arcuate side wall having a plurality of jet openings therethrouglr adjacent its intersection with one of said concave side walls communicating with said chambers, and said flange having an arcuate slot.

BERNADINE ANDERSON. Ewecutria: of the Estateof Howard P. Anderson,

Deceased.

Images