US2015494A - Distributor head for stokers - Google Patents

Description

Sept. 24, 1935. w. c. PEYTON 2,015,494

DISTRIBUTOR HEAD FOR STOKERS Filed July 24, 19:51 2 Sheets-Sheet 1 NVEN TOR. ey/azz ATTORNEY.

Sept. 24-, 1935. w c PEYTON 2,015,494

DISTRIBUTOR HEAD FOR STOKERS Filed July 24, 1931 2 Sheets-Sheet 2 A TTORNEY.

Patented Sept. 24, 1935 UNITED STATES PATENT OFFIQE DISTRIBUTOR HEAD FOR STOKERS William C. Peyton, New York, N. Y., assignor to The Standard Stoker Company, Incorporated, a corporation of Delaware 7 Application July 24, 1931, Serial No. 552,867

4 Claims. (Cl. 110101) This invention relates to distributor heads for use with stokers of the scatter feed type, and more particularly to that type of distributor head wherein the portion thereof which contains the pressure fluid jet openings is formed as a member separable from the main body of the distributor head.

It is the object of this invention to construct a sectional distributor head which is cheaply manufactured, readily installed and cheaply maintained and in which a tight joint between its component parts is obtained to prevent leakage of pressure fluid.

More specifically, the invention resides in certain details of construction which function to produce an improved distributor head as will appear in the following description when read in connection with the accompanying drawings, in which Fig. 1 is a vertical longitudinal section of a portion of a locomotive and a stoker therefor, showing the invention in position therein;

Fig. 2 is a plan section on the line 22 of Fig. 1;

Fig. 3 is a section on the line 33 of Fig. 1 looking in the direction of the arrows;

Fig. 4 is an enlarged view of a portion of the sectional distributor head as shown in Fig. 3; and

Fig. 5 is a section taken on the line 55 of Fig. 4.

Referring now to the drawings, the numeral l 8 designates a locomotive having a backhead H provided with a firing opening i2. A suitable stoker is provided for supplying fuel to the 1000- motive. The stoker comprises a riser conduit 53 which constitutes the forward section of a series of connected conduits leading from a suitable source of fuel supply such as the fuel bin of the locomotive tender (not shown).

The riser conduit l3 extends upwardly and is curved forwardly for delivering fuel to the opening'lZ onto a distributor plate Hi and is provided with a. movable cover section 55 hinged at its upper end as at l6, whereby access may be had to the interior of the riser conduit for the purpose of inspection and repairs.

Suitable means for distributing the fuel over the firebox is provided which includes a novel sectional distributor head I! arranged to issue a fan-shaped blast of pressure fluid over the distributor plate It. This plate comprises a fiat central portion i9 and a pair of outwardly curving pockets or depressions 20, 28a and the J- shaped deflecting ribs 2|, 2 la which serve to intercept a portion of the fuel as it is swept over the distributor plate by the blast of pressure fluid issuing from said distributor head, in this manner supplying fuel to the rear corners of the firebox.

The distributor plate 54 is detachably secured to the upright wall 22 of the riser conduit and fits snugly into a recess 23 therein, said plate forming an extended floor portion of said conduit.

Immediately rearward of the distributor plate I; and vertically disposed in the upright Wall 22 of the conduit I3 is the novel sectional distributor head ll mentioned herebefore and which will now b be more fully described. The sectional distributor head comprises a main body portion 24 and a top or hood member 25. The main body portion 24 is preferably a flat, hollow, plate-like member provided with a top Wall 26, a bottom wall 21, the end walls 28, 28a and the side walls 23, 29a. Included between these walls are the several steam chambers such as 33 which are separated by the partition walls such as 3|. Each of the steam chambers 38 has its bottom wall 27 threaded as at 32 to receive a suitable pressure fluid supply line 32m.

The top wall 26 of the main body portion 24 is provided with a series of vertically drilled passages 33 which are recessed or counter-drilledfl concentrically at their uppermost portions to form seats such as 34. The drilled passages-33 communicate with the steam chambers 38' and also with passages in the hood member aswill pres- 25 ently appear.

The top or hood member 25 comprises a flat front face 35, a curved roof 36 and a base portion 31 provided with alined downwardly extending projections or nipples 38 which correspond in number to the number of seats 34 of the main body portion and which are spaced similar to the spacing of the seats 34. Each of the projections 38 is arranged to snugly fit in one of said seats. Drilled vertically into the hood member 25 and 35 coaxial with the projections 38, are the passages. 39. Since the drilled passages 33 and 39 are coaxial with the recesses or seats 34 and the projections 38 respectively, these passages will be in absolute register with each other when the hood member 25 is interfitted with the main body portion 24, thereby forming a series of continuous passages from the steam chambers 30 to the hood member 25. I Gaskets 48, preferably of copper, are placedbetween the contacting surfaces of the seats 34 and the projections 38 to insure' tight connections therebetween. The projections or nipples 38 of the hood member are of greater length than the depth of the seats 34 in the main body portion which insures the said projections or nipples to be seated tightly against the gaskets in the seats 34 without permitting the base portion of said hood member to contact the top wall of said main body portion.

Jet openings 4| pass through the front face 35 of the hood member 25 in a manner to communicate with the drilled passages. These jet openings are in horizontal alignment and when the hood member is in proper relation with the main body portion 24, are adapted to direct blasts of pressure fluid across the upper surface of the distributor plate M for projecting the fuel to all parts of the firebox as rapidly as it is delivered onto the distributor plate.

Extending outwardly from the end walls 28, 28a of the main body portion 24, are the flange members 42, 42a which are arranged to pass over the stud members 43, 43a respectively threaded into the upright wall 22 of the riser conduit l3. Suitable nuts are threaded over the stud members 43, 43a respectively to secure the main body portion 24 with said riser conduit l3.

The top wall 26 of said main body portion 24 is threaded as at 44, 44a to receive the stud members 45, 4511 respectively and the uppermost side of said riser conduit upright wall 22 is threaded to receive the stud members 46, 46a. The hood member 25 is provided with the laterally extending flanges 41, 41a which are drilled as at 48, 48a to pass over the stud members 45, 46a respectively. The central portion of said hood member is also drilled as at 49, 49a in a manner to pass over the stud members 45, 45a respectivey. Suitable nuts are threaded over these stud members to secure the hood member 25 to the main body portion 24, thereby causing the gaskets 40 to be compressed between the interfltted members 34 and 38 to insure tight joints therebetween.

By arranging my novel sectional distributor head so as to provide a separate gasket for each jet passage, the gaskets may be made relatively small and more easily and cheaply manufactured than if only one gasket for the entire sectional distributor head were used. These smaller gaskets consequently have a smaller area exposed to the cutting action of the steam, thereby prolonging the life of the same with respect to that of one large gasket, as well as maintaining a tight joint between the interfitted members for a greater length of time.

I claim: l

l. Apressure fluid distributor head comprising a hollow plate-like body member and a hood member, said body member being provided with bottom, top, side and end walls, a plurality of chambers in said body member including partition walls separating said chambers extending between-said bottom and top walls, said top wall being provided with a series of passages communicating with said chambers, each passage being of less cross-sectional area than that of the chamber with which it communicates said hood member being provided with a series of passages extending upwardly therein and having jet openings communicating with and arranged at substantially right angles with said passages therein, said first and second named series of passages being arranged to be in register with each other so .as to form a series of continuous passages, the adjacent faces .of said body member and said hood member being provided with means where- .by said adjacent faces may be interfitted with each other to provide a joint for each of said passages, the aforesaid means including nipples on the adjacent face of one of said members and ,seats in the adjacent face of the other member receiving the nipples, and means for securing said hood member to said body member.

2. A sectional distributor head arranged to issue pressure fluid, comprising a hollow plate-like body member and a hood member having a base portion, a flat front face, an arcuate roof and for securing said hood member to said plate-like body member, said body member being provided with bottom, top, side and end walls, a plurality of chambers in said body member including partition walls separating said chambers extending between said bottom and top walls, said top wall being provided with a series of passages communicating with said chambers, each of the last-named passages being of less cross-sectional area than that of the chamber with which it communicatesf said top wall having a recess formed therein concentric with and circumscribing the upper portion of each of said last-named passages to form seats, each of said seats arranged to receive one of said nipples whereby the adjacent faces of said body member and said hood member can be interfitted to align said first and second named series of passages to form a series of continuous passages and provide a joint for each of the lastnamed passages.

3. As a new article of manufacture, a pressure fluid receiving section of a sectional distributor member of a stoker comprising when in operative position bottom, top, side and end walls arranged in substantial rectangular conformation, a plurality of chambers in said body member including partition walls separating said chambers extending between said bottom and top walls, the top wall of said receiving section being provided with passages extending therethrough and communicating with said chambers, each passage being of less cross-sectional area than that of the chamber with which it communicates, a plurality of such passages communicating with each of said chambers, said top wall having recesses formed therein coaxial with and circumscribing the upper portion of each of said passages to form seats in said top wall, and the bottom wall of said receiving section being provided with a plurality of passages, each passage communicating with a respective chamber.

4. As a new article of manufacture, a discharge section of a sectional pressure fluid distributor head comprising a flat front face, a flat base substantially at right angles thereto, an arcuate roof joining the remote edges of said front face and said base, said discharge section in cross section taken perpendicular to said base and front face being substantially quarter round, a row of nipples extending downwardly from said base, said discharge section being provided with passages extending upwardly through said base coaxially.

with said nipples and terminating short of said arcuate roof, each passage extending through a respective nipple and being of less cross sec tional area than said nipple, the front face of said discharge section havingdischarge orifices disposed at approximate right angles to-said'passages, each opening at one end into one of said passages.

WILLIAM C. PEYTON.

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