US1675187A - Fuel distributor - Google Patents

Description

June 26, 1928.

- 1,675,187 N. M, LOWER ET AL FUEL DISTRIBUTOR Filed Feb. 8, 1926 2 Sheets-Sheet l June 26, 1928. 1,675,187

N. M LOWER El AL FUEL DISTRIBUTOR Filed Feb. 8, 19261 ZSheetS-Sh'eat; 2

m I u w 4Q Q70: Q1 40 Q5 Patented June 26, 1928.

UNITED STATES PATENT OFFICE.

NATHAN M. LOWER AND ALBERT R. CHALKER, F PITTSBURGH, PENNSYLVANIA.

FUEL DISTRIBUTOR.

Application filed February This invention relates to tubular distributors for stokers of the type disclosed in the patent to Nathan M. Lower, No. 1,455,058 granted May 15, 1923, and has for its principal. objects to facilitate the replacement of those portions subjected to the intense heat of the firebox; to provide fasting means for the replaceable elements that will permit removal and replacement with minimum of time and effort, and without the necessity of cooling off the firebox; and to make the weight of the replaceable parts assist in maintaining them in proper position.

The preferred embodiment of the invention is illustrated in the accompanying drawings in which Fig. 1 is a side elevation of the fuel distributor shown applied to the back head of a locomotive;

Fig. 2 is a plan view of a distributor;

Fig. 3 'is a longitudinal section thereof, taken in a. vertical plane;

Fig. 4 is a longitudinal section taken in a 6 horizontal plane;

Figs. 5 and 6 are transverse sections taken on the line; 5-5 and 66 respectively of Fig. 3;

Fig. 7 is a transverse section taken on the line 7-7 of Fig. 4;

Fig. 8 is a perspective view of the bottom and abutment forming a replacement unit; and

Fig. 9 is a perspective view of the deflector forming another replacement unit.

Although the distributor may be usedwith a. variety of furnaces it is especially adapted for use in connection with the back head 10 of a locomotive comprising sheets 11 and 12 which have been perforated and fitted with a sleeve 13 to receive the tubular distributor.

A portion of a stoker head is shown at 14 equipped with a steam nozzle 15 by which coal delivered from the head is blasted through the tubular distributor comprising a body portion or tube 16, a deflector 17, projecting forwardly from the upper portion thereof, and an abutment 18 extending transfersely to the tube and-projecting above its lower surface.

The body 16 includes a cylindrical rear portion, or base 19, a flattened top 20 and curved sides 21 connected at their lower edges by: a bridge 22 and the lower part of the cylindrical portion 19 which, in effect, forms another bridge 23 at the rear.

8, 1926. Serial No. 86,842.

The upper portion ,of the tube 16 is provided witha slot 24 to receive a hook bolt 49 for the purpose of securing the tube to the stoker head, as described in the patent to Lower, No. 1,410,687, March 28, 1922.

The deflector 17 (Figs. 1, 2, 3 and 9) includes a relatively Wide front portion 25 tapering rearwardly at 26 and terminating in a less abruptly tapered shank 27 adapted to be received in a seat 28 formed by offset ting a portion of the top, as indicated at 29. On the upper side of the deflector at about the juncture of the shank with the rear- Wardly tapering portion is a lip 30 spaced above the shank to rest upon the front end of the top 20.

In order to facilitate rotation of the deflector. from the dotted line to the solid line position in Fig. 1, and vice versa, the top tense heat of the furnace is raised to a high temperature and tends to droop downwardly into the path of the fuel and thus interfere with proper distribution. To prevent this ribs 34 extend along the sides and a rib 35 extends through the center from the thickened portion of the front 25. These, together with the base of the lip, give the deflector suflicient stiffness to prevent drooping.

The abutment 18 has a substantially straight and upright rear face 36 which, in effect, forms an abutment, all the metal in the front of this face being present to give the abutment endurance against the intense heat. A roof-shaped neck 37 connects the abutment with the front end of a removable bottom 38 adapted to be fitted between the sides 21 of the tube. The comb of the roof extends from the middle of the bottom up to enter an opening 42 in the sector-shaped flange 43 on the rear bridge 23. At the lower edge of the sides 21 there are ledges 44 (Fig. 5) adapted to support the edges of the bottom 38. The bridge 22 has lugs 45 (Fig. 6) which support the bottom further towards the front. Between the bridge 22 and the ledges 44 the sides are notched, as indicated at 46 to receive lugs 47 on the sides of. the bottom in the relation indicated in Figs. 1, 3 and 4.

Varying conditions, or personalpreference, require abutments of slightly different height and for that reason a narrow rib 48 is provided along the top of the abutment 18 at the maximum height to be expected. By chipping this rib a suitable amount the the abutment may be lowered.

The mounting for the deflector permits it to be easily inserted by first placing it in,

the dotted line position shown in Fig. 1 and allowing it to drop to the solid line position where it will be securely held during service, but may be easily removed by reversing the operation. This can be accomplished without cooling ofl the furnace. The long lip 30 provides ample strength and yet finds plenty of clearance between the end of the tube 16 and the sleeve 13.

The removable bottom and deflector is easily inserted by first placing it in the position shown in dotted lines in Fig. 3. and letting it drop to the solid line position, where the weight of the abutment and neck will hold it securely in position until it is to be removed, when a simple reversal of this operation will accomplish that result.- This also can be done without cooling off the furnace.

lVe claim as our invention: 1

1. The combination of a back head of locomotive, a sleeve extending through the back head, a tubular fuel distributor including a tube within the sleeve'having its front end adjacent to the end of the sleeve, a deflector having a lip in supporting engagement with the front end of the tube at the top, a stem on the deflector extending into the tube, and means for securing the stem against longitudinal movement with respect to the tube.

2. In a stoker for tributor including a substantially horizontal tube, a deflector having a stem extending into the tube and a body portion heavier than the stern projecting forwardly from the tube, a lip on the upper side of the deflector, in supporting engagement with the top of the-tube at the front end and means for securing the deflector against longitudinal movement with respect to the tube.

' 3. In a stoker for locomotives, a fuel distributor including a substantially horizontal locomotives, a fuel dis-v tube having a sunken seat on the underside of the top adjacent to the front end and a socket extending upwardly from the seat, a deflector having a stem in the seat and a body portion heavier than the stem projecting forwardly from the tube, a lip on the upper side of the deflector engaging the top of the tube at its front edge and a lug on the stem seated in said socket.

4. A deflector for the upper side of a tubular distributor for stokers, comprising a plate, av stein extending rearwardly from the plate, a lug projecting upwardly from the stem and a lip projecting rearwardly above the stem.

5. A deflector for the upper side of a tubular distributor for stokers comprising a plate, a lip extending across the plate and projecting rearwardly, a stem extending rearwardly below the lip and a lug on the stem projecting upwardly.

6. A fuel distributor for stokers comprising a tube flattened at the bottom, an abutment spaced from the front end of the bottom and extending above the upper sur face thereof, and a roof shaped neck connecting the abutment and the tube, said neck having two slanting surfaces meeting in a ridge running lengthwise with respect to the tube.

7. A fuel distributor for stokers comprising a tube flattened at the bottom, a substantially straight abutment spaced forwardly from the front end of the tube and projecting above the upper surface of the bottom, a neck connecting the abutment with the plate and inclined at each side from the middle of the abutment to its ends.

8. A fuel distributor for stokers compris' ing a substantially horizontal tube having a socket opening'forwardlv adjacent to its rear end and ledges at its sides, a removable bottom having a pin seated in said socket and having its edges resting on said ledges.

9. A fuel distributor for stokers having a substantiallyhorizontal tube having a forwardly opening socket adjacent to its rear end and upwardly opening sockets at its sides, and a removable bottom having a pin seated in the forwardly opening socket and lugs seated in the upwardly opening sockets.

10. In a fuel distributor for stokers, the

combination of a tube open at the bottom, 1

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