USRE17506E - Flue sander - Google Patents

Description

Nov. 26, 1929.

G. ALYTIMARI El'. AL

VFLUE SANDER Original Filpd May 4, 1926 2 Sheets-Sheet 6. AL TlMAR/ d. 4. 6AM/BELL 'NVE-NTO- Nov. 26,` 1929. G. ALTIMARI vEr Al. A Re. 17,506

FLUE SANDER Original Filed May 4. 1926 2 Sheets-Sheet ATTORNEY.

Reissued Nov. 26, 1929 UNITED STATES @103GB ALTmABI AND JOHN ALONZO CAMPBELL, OF PARSONS, KANSAS, ABBIGNOBB T E. H. BAKER AND M. H. BAKER, 0F DAVENPORT, IOWA FLUE SANDER Ml'lll Io. 1,618,088, dated. January 11, 1927, Serial No. 106,769, led Hay 4, 1926. Application for reissue med January 10 1929. Serial No. 831,623.

The present invention is concerned with the provision of a sander for removin the carbon deposits or soot from the flre si e of the lues and Afire sheet -of steam loco- An object of the invention is to provide o dooe of this character which will clean the ontimsurfaee of the fiue sheet, and all of the as me to the ordinary ineicient u" wf l s which effect thorough cleanfonly a portion of the llue sheet and the ral tubes.

A urther object of the invention is to prosander in which considerable economy I of ful -oil is effected by virtue of the more t Acleaning action. '.furthor object of the invention is to pro- Vido Leander which will effect a material y of sand, due to the uniformity of O taldr'feed and the uniformit of the spray which strikes all parts of the ue plate.

1 A further object of the invention is to provida a sander which the operator-may mansally regulate from his seat in the engine cab,

,i5 Sothat the common inconvenience of dipping und from a box, carrying it to the re box, andepouring it into a horn is eliminated.

:Mother object of the invention'is to providq a sander which will do away with the dal inconvenience of sand settling into the cracks of the brick floor of the fire pan, and the consequent lifting and working out of pboo of the bricks as the sand works down under them. In other words, the use of the sander will entail no extra labor in keeping the fire pan oor in good condition, or for chemin the wasted sand out of the fire box ofthe oeomotive front end.

A. further object of the invention is to so houle the sand supply, that no sand can poss ill into the cab or 'be blown into the ecb 'Fh us, there is no danger of sand blowing into the eyes of the crew or becoming mattered over the cab and machinery.

Still another object of the invention is to provide a vsander which may be operated while the locomotive is idling, or may be operated by simply turnin on the blower to olte radaaft through the e box and tubes,

il aiopposdfto the conventional practice which permits of a sanding operation only when the locomotive is running `at full speed.

Other objects of the invention are to provide a sander of simple, practical construction, which will be rugged, and durable in use, easy to manipulate, capable of installation 1n any ordinary locomotive, and lending itself to economy of manufacture.

With the above noted and other 'objects in view, the invention consists in certain novel features of construction and combinations and arrangements of Y arts, as will be more fully hereinafter set orth and pointed out in the claims. The invention maybe more fully understood from the followingdescripu tion in connection with the accompanying drawings, wherein- Fig. 1 is a fragmentary, somewhat diagrammatic sectional view through the rear end of a locomotive boiler, fire box and cab, showing a sander embodying the present invention in operative position.

Fig. 2 is an enlarged fragmentary broken View, partly in section and v artly7 1n elevation illustrating the details o the sander noz- 75 zle and sand trap.

In the drawings we have used the reference character 10 to desi ate the cab .of a locomotive provided witlgllthe usual roof 11. The fire box is designated at 12, the flue sheet at the front end of the fire box bears the reference character 13, and the flues are indicated at 14. The boiler 15 is provided with the usual back head 16 which constitutes the rea-r wall of the fire box 12. In the back head 16 35 of the boiler there is provided a sleeve 17 adapted for the reception of a sand spraying nozzle 18 through which the sand is .introduced into .the fire box.

As thus far described the construction may be entirely conventional, and the usual .practice is to simply pour sand through the opening 17 and rely on the draft through the fire box and iues to eect cleaning of the ue sheet and iues by the action of the sand. 4vmi Such a practice is obviously inefficient and possesses many' disadvantages, as noted in the objects of the invention.

In accordance with the present invention, we blow sand through the nozzle 18 under 100 i pressure, spraying it in a fine spray over the iso entire surface of the Hue sheet 13,and causing it to enter all of the tubes 14, so that the face of the Hue sheet, as well as the tubes are thoroughly scoured and cleaned by the sand, and all soot or carbon deposits removed therefrom. As noted above this action may be carried out simply b the force of the sand spray aided by a b ower creating a draft through the fire box and flues, and regardless of whether or not the locomotive is running at full speed.

A sand hopper 19 is secured to the roof of the cab, and is provided with a removable cover cap 20 at the exterior of the cab. Thus, the hopper is filled from the outside of the cab and there is no danger of sand being spilled over the machinery, or over the Hoor of the cab. A chain 21 may beassociated with the cover 20 to prevent its accidental loss while filling the hopper.

A depending discharge pipe 22 at the bottom of the hopper communicates Witha casting 23 which constitutes a sand trap, and prevents gravitationalflow of sand from the hopper to the fire box. Pipe 22 is preferably screwed into one end of the trap 23, and the outlet lend* of the trap carries a threaded nipple 24 receiving a flexible hose connection 25,. The nozzle 18 is mounted in a chuck 26 fitting over the rear end of the nozzle and secured thereto by a set screw 27 working in an yannular groove 28 in the nozzle. Screwed on to the rear end of the chuck 26 is a Y-coupling 29 receiving a pi e 30 which is connected to the lower end of t e hose line 25 in any appropriate manner, as by the use of a coupling 31. f

The nozzle 32 of an air line 33 enters the casting 29 and is adapted to discharge air directly through the nozzle 18. The nozzle 34 of an air line 35 is disposed in the sand trap 23.

vIn operation, no sand will How yfrom the hopper to the nozzle 18 under the influence of gravity. The control valves 36 for the air lines 33 and 35 are within convenient reach of the operator. Air enterin the sand trap through the nozzle 34 will be directed through the sand line 25 to the nozzle 18 carrying with it some of the sand from the trap 23, and causing the trap to gravitationally refill from the hopper. Thus, the sand is carried along with the air stream to the casting 29 where a strong air jet blowing through nozzle v32 carries it at high speed and under considerable pres sure through the nozzle 18 and into the Hre box.

The sand is thus sprayed over the face of the Hue plate 13 carried through the Hues 14 and out of the stack. The normal, or forced draft through the fire box and Hues will of course aid the kair jet from the nozzle 32 in carrying the sand along through the flues, and in preventingsand from the nozzle 18 from dropping into` the fire box.

While we have illustrated one of the preferred embodiments of the invention, various changes and alterations might be made in the general form and arrangement of parts described without departing from the invention., Hence we do not wish to limit ourselves to the details set forth, but shall consider ourselves at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

We claim:

1.V The combination with a locomotive including a cab, a tube type boiler and a fire box, of a sander nozzle mounted in the back head of the boiler and adapted to discharge sand over the face of the Hue plate, a sand hopper mounted in the roof of the cab and having a filling opening arranged above the roof, a sand line connecting the hop r and the nozzle, and an air line dischrging through the nozzle.

2. The combination with a locomotive having a tube type boiler provided with a Hue plate, of a sander nozzle mounted in the back head of the boiler and arranged to discharge sand over the face ofthe Hue te, a sand hopper mounted on the locomotive at a higher elevation than the nozzle and remote therefrom, a sand line connecting the hopper and the nozzle, an air line discharging through the nozzle, and means for preventing unrestricted How of sand from the hopper to the nozzle, said means including a sand trap in the sand line between the hopper and the nozzle, and means for forcing the sand out of the trap into said sand line. v

3. The combination with a locomotive having a tube type boiler provided with a Hue plate, of a sander nozzle mounted in the backhead. of the boiler and arranged to discharge sand over the face of the Hue plate, a sand hopper mounted on the locomotive at a higher elevation than the nozzle and remote therefrom, a sand line connecting the hopper and the nozzle, an air line discharglng through the nozzle, means for preventing unrestricted flow of sand from the hop er to the nozzle, said means including a san trap in the sand line, and an air nozzle for blowing sand out of the trap into the sand line.

4. The combination with a locomotive includin a cab, a tube type boiler and a fire box, o a sander nozzle mounted in the back head of the boiler and adapted to discharge sand over the face of the Hue plate, a sand hopper mounted in the cab and a sand line connecting the hopper and thenozzle, an air line discharging through the nozzle, and means for preventing gravitational How of sand from the hopper to the nozzle, said hopper being securedl to the roof of the cab and having a filling opening disposed exteriorly of the cab.

5. The lcombination with a boiler having Hues anda Hue plate, oa sand blast apparatus comprising a. nozzle arranged to discharge sand agamst said plate and through said fines, a sand hopper arran ed in fixed position at a higher elevation t an and remote from said nozzle, a. sand line connecting the hopper and nozzle, an air line discharging through the nozzle, means for preventing unrestricted How of sand from the hopper to the nozzle through said line, said means including a sand tra in mid sand line between the hopper and t e nozzle and means for 1finlrcing sand out of the trap into the sand e. In witness whereof, we hereunto subscribe u our names to this s ecification.

GEORG ALTIMARI. JOI-IN ALONZO CAMPBELL.

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