US1088935A

US1088935A - Track-sander.

Info

Publication number: US1088935A
Application number: US80959213A
Authority: US
Inventors: Walter B Rogers
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-12-30
Filing date: 1913-12-30
Publication date: 1914-03-03
Anticipated expiration: 1931-03-03

Description

W. B. ROGERS.

TRACK SANDER.

APPLIOATION FILED oom, 1912. RBNBWBD DB0. 30.1913.

Patented Mar. 3, 1914.

2 SHEETS-SHEET 1.

INVENTOR Wei/2B Pape/ A /lorneJ/J.

l f Q m 7 .To

W. B. ROGERS.

TRAGK SANDER.

APPLIOAT-ION FILED 00T.1, 1912. RBNEWED Dnc. ao. 191s. 1,088,935.

M M am; E

um w. Z

nd v

W] ,NESSES WALTER B.` ROGERS, OIE'` KNOXVILLE, TENNESSEE.

TRACK-SANDER,

Specification of Letters Patent.

PatentedMar. 3, 1914.

Application filed October 1, 1912, Serial No. 723,454. Renewed December 30, 1913. Serial No. 809,592.

T0 alt whom it may concern Be it known that LWALTnR B. Roenes, citizen of the United States, residing at Knoxville, in the county of Knox and State of Tennessee, have invented certain new and useful Improvements in Track-Sanders, of which the following is a specification.

This invention relates to track Sanders for locomotives and other railway rolling stock.

The primary object of the invention is to provide a track sander of simple and durable construction in which clogging or choking of the air passage in the blast nozzle by back pressure of the sand from thereservoir during the sanding operation is effectually prevented.

A further object of the invention is to provide a sanding device, the construction of which is such that when air or other fluid is admitted to the blast nozzle any particles of sand or foreign matter which may find lodgment in the air passage of the nozzle will be automatically discharged, thus rendering the device self-cleaning.

A further object is to provide a blast nozzle capable of being readily removed from the casing to permit cleaning or renewal thereof without the necessity of entirely detaching the nozzle clamping means; which cannot be incorrectly positioned within the casing and which will be held against accidental displacement should the nozzle clamping means for any reason work loose.

A further object is to provide means for centering the discharge end of the blast nozzle within the sand passage of the casing, thus to afford ample clearance around the nozzle for the discharge of stones, gravel and the like which may be drawn from the sand box by the action of the blast.

A further object is to provide the sand passage at a point remote from the dis-` charge end of the nozzle with an upstanding lip defining a contracted throat which prevents the sand from discharging from the box or reservoir when the blast is cut off and serves to direct the volume of sand against a suitable defleetor when the blast is admitted to the nozzle, thereby preventing abrading action of the sand on the interior` walls of the casing and consequently materially prolonging the effective life thereof.

A further object is to provide a blast nozzle having a novel form of strainer at one end thereof and a cleaning plug at the other,

the intermediate portion of the nozzle being deflected laterally so as to prevent the sand from coming in contact therewith.

A still further object of the invention is generally to improve this class of devices so as to increase their utility, durability and efficiency.

Further objects and advantages will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and accompanying drawings, in which:

Figure l is a perspective view of a track sander constructed in accordance with the present invention; Fig.- 2 is a vertical sectional view thereof; Fig. 3 is a transverse sectional View taken on the line 3-3 of Fig. 2 and looking in the direction of the arrow; Fig. 4 is a perspective View of the blast nozzle detached; Fig. 5 is a similaiview of the bushing, showing the strainer in position thereon; Fig. 6 is an enlarged longitudinal sectional view, showing the manner of clamping the nozzle in position on the casinor and also illustrating the construction of the strainer; Fig. 7 .is a perspective view of the deflector carrying cap detached.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved track sander forming the subject matter of the present invention comprises a hollow body portion or casing 5 having angularly disposed nipples 6 and 7, one of which is exteriorly threaded for connection with a sand box 8 and the other interiorly threaded for attachment to a correspondingly threaded discharge pipe (not shown). The nipple 6 is provided with a sand passage 9 which communicates with the interior of the sand box and casing, respectively, the lower wall of the inlet passage 9 at the outer end thereof being curved or deflected upwardly to produce a contracted throat 10 which serves to concentrate the sand from the box and direct said sand against the adjacent face of a suitable deflector, indicated at 11. The deflector 11 is of the construction shown in Fig. 7 of the drawings and comprises essentially a metal Mounted on the angular shank 12 of the dellector, is a threaded cap 15 which engages a correspondingly threaded opening 16 formed in the casing at a point opposite the sand passage 9, there being a packing strip or washer 17 interposed between the body 11 of the deflector and cap 15 as best shown in F ig. 2 of the drawings. The active face 18 of the deflector is preferably disposed above and at an angle to the longitudinal axis of the nipple 7 so that the sand discharged through the passage 9 will be forced against the face 18 and thence be deflecteddownwardly through the nipple 7 to the conductor leading to the track. The cap 15 is provided with an opening, the Walls of which are angular to conform to the anguiarity of the shank V12 so that after one portion of the face 18 of the defle-ctor has become worn by contact with the sand a new or fresh face may be presented to the sand by releasing the nut 14 and partially rotating the deflector, the latter being clamped in adjusted positiori by tightening the nut leas will be readily understood.

lThe casing 5 is provided with an extension 19 in which is seated a blast nozzle 20, the free end of the extension being provided with a flat bearing surface 21 having an opening 22 formed therein to permit the insertion of said blast nozzle. The blast nozzle 2O is in the form of a tube having one end thereof provided with a head 23 which fits within the opening 22 and is formed with a laterally extending flange 24;, the lower face of which is provided with an annular groove adapted to receive a correspondingly shaped rib v25 on'the bearing surface 21, thus to provide a tight joint and effectually prevent the entrance of water or moisture to the interior of the casing. The head 23 is provided with an angular extension 26 having a threaded socket formed therein for engagement with a correspondingly threaded bushing 27, the in ner end of said bushing being provided with.v

an annular shoulder 28 which forms a seat for a strainer, indicated at 29. rlhe strainer 29 is in the form of'a cup and is provided with a laterally extending flange 30 which bears against the shoulder 28 and is held against accidental displacement by a nipple or gland 31 to which is attached a pipe 32 leading to a source of air or other fluid pressure.

lt will here be noted that by forming the strainer 29 with the flange 30 for engagement with lthe nipple 31, not only is the strainer locked against accidental displacement, but the entrance of dust and other foreign particles around the edges of the strainer to the active end of the nozzle is eflectually prevented. Further by reason of the fact that the strainer 29 rests onthe shoulder 28, the nipple 31 and bushing 27 carrying the strainer 29 may be simultaneously detached from the blast nozzle, thus keeping the several parts together and pre-V venting loss of the strainer. Y

The inner end of the nozzle 20 extends longitudinally beyond the inner end of the nipple 6 and preferably projects a short distance within the sand box 8, there being a curved depression or seat 33 formed in the upper wallof'the sand passage 9 for the reception of the tubular body of the nozzle,

asy shown in F ig. 3 of the drawings. Depending from and preferably formed integral with the tubular body portion of the nozzle 20, is an enlargement 3/1 having tapered side walls and provided with intersecting

passages

35 and 36 which communicate with the central bore 37 of the nozzle, the

passages

35 and 36 beingof uniform diameter and of less diameter than that of the bore 37.

The air passage or duct 35 extends longitudinally of the enlargement or nozzle proper 34;, while the passage or duct is p inclined rearwardly and intersects the passage or duct 35 at a point near the rear end of the enlargement.V By such a construction a portion of the air from the bore 37 will be directed longitudinally within the sand box so as to agitate and loosen the sand, while another portion thereof will be directed rearwardly wit-hin the sand passage 9 so as to suck or draw the sand from the box 8 and direct the blast of sand against the deflector 11 and thence to the discharge pipe.

It will here be not/ed that the nozzle 341 is devoid of valves so as to render it practically impossible for the passages 35 and .3G to become clogged or otherwise obstructed with y sand which may be forced rearwardly by the act-ion of the blast. Moreover, as the diameter of the

passages

35 and 36 is uniformr It will also be noted that the'lip Y10 not only serves to concentrate the sand lon the deflector 18, but by reason of the forward slope of the lower wall of the inlet passage 9 at said lip, the sand from the box 8 is prevented from entering the casing when the device is not in use.V

The free end of the tubular body portion of the nozzleat the extension thereof is provided with an opening` normally closed by a screw or plug 38 by removing which a wire or other flexible instrument may be readily inserted through the opening and through the

passages

35 and 36 to facilitate cleaning the same if necessary.

Extending laterally from and preferably formed integral with the flange Q4 are spaced ears 39 adapted to receive between them a clamping device preferably in the form of a threadedl bolt 40,wvliich latter serves to retain the nozzle in position on the casing. By providing the head of the blast nozzle with the ears 39, the nozzle may be readily removed from the casing to permit cleaning or renewal thereof without the necessity of entirely detaching the bolt 40, it being merely necessary to partially rotate the bolt when the ears may be withdrawn therefrom and the nozzle detached, thereby reducing liability of loss of the fastening device or bolt 410 to a minimum. Should, for any reason, the bolt l0 partially rotate or become loose, the nozzle will not become detached from the casing, owing to the fact that the ears 39 span the bolt and thereby prevent accidental displacement of the noz zle. The ears 39 and bolt 40 also render it practically impossible for the blast nozzle to be positioned incorrectly within the casing as the ears must span the bolt before the nozzle can be inserted.

Attention is here called to the fact that the nozzle is centered within the sand passage 9 by the seat 33 and clamping bolt a0, while the inclined walls 34: of the nozzle proper afford a clearance between the nozzle and the inner wall of the sand passage 9 sufficient to allow the discharge of stones, gravel and other particles from the sand box.

The nipple G is preferably secured to the sand box 8 by means of co-acting clamping nuts 41.1, the walls of which are preferably curved to conform to the curvature of said sand box, as best shown in Fig. 2 of the drawings.

In devices of this character where valves are employed in the blast nozzle, the sand has a tendency to collect back of the valve or in any pockets or depression thereabout and cut or wear away the parts which objectionable feature is entirely obviated in the present construction in that no valve is employed' for controlling the blast of air to the sand box. Again in track sanders in general use, the sand has a tendency to cut the interior walls of the casing and where a soft metal lining or jacket is provided for the casing, this jacket is soon cut away by the abrading action of the sand and the pieces thus detached from the casing have a tendency to clog the discharge passage or other portions of said casing. This objectionable feature is also entirely obviated by the present construction, which, as before stated, directs the sand from the sand box directly against the detlector and thence to the discharge pipe without coming in contact with the-walls of the casing. As the deflector may be readily removed `and renewed it is apparent that the saving `thus effected is material.

Having thus described the invention, what is claimed as new is:

1. A track sander including a casing having sand inlet and discharge passages, a blast nozzle disposed within the inlet passage, means for detachably securing the blast nozzle within the casing, and means independent of the securing means for centering the discharge end of the blast nozzle within the inlet passage.

2. A track sander including a sand box, a casing having sand inlet and discharge passages, one of which communicates with the interior of the box, a deflector and a blast nozzle disposed within the inlet passage and projecting within the sand box, said nozzle being provided with a duct discharging in opposite directions in the same plane into the sand box and against said deflector respectively.

3. A track sander including a sand box, a casing having sand inlet and discharge pas-` sages, one of which communicates with the interior of the sand box, a dellector, a blast nozzle having intersecting ducts of uniform diameter, one of which discharges for-` wardly into the sand box and rearwardly in the same plane against the del-lector, and means for centering the blast nozzle within the inlet passage.

4. A track sander including a sand box, a casing having sand. inlet and discharge pas-` sages, a deflector and a blast nozzle disposed within the inlet passage and having one end thereof rojecting within the sand box and provided) with unobstructed intersecting ducts disposed at an angle to each other, one of said ducts discharging forwardly into the sand box and rearwardly in the same plane against the deflector.

5. A track sander including a sand box, a casing having sand inlet and discharge passages, a blast nozzle disposed within the casing and having one end thereof provided with a depending enlargement having intersecting ducts formed therein, one of which discharges into the sand box and interior of the casing, respectively, a deflector, and a contracted throat arranged within the inlet passage for directing the sand against the deflector.

6. A track sander including a sand box, casing having sand inlet and discharge passages, the wall of the inlet passage being curved upwardly to form a lip defining a contracted throat, a blast nozzle arranged within the inlet passage and discharging into the sand box and interior of the casing, respectively, and a defiector arranged opposite the contracted throat.

7. A track sander including a sand box, a casing having sand inlet and discharge passages, a blast nozzle removably fitted Within the casing and having a depending extension provided With intersecting ducts, one of which discharges into the interior of the sand box and casing, respectively, a fastening device carried by the casing and engaging the blast nozzle, and means for permitting the removal of the blast nozzle With out detaching the fastening device.

8. A track sander including a sand box', a casing having sand inlet and discharge passages, a blast nozzle disposed Within the casing and having a depending extension centered Within the inlet passage and provided With intersecting ducts, one of which discharges into the sand box and interior of the casing, respectively, a screen carried by the blast nozzle, and means for detachably securing the blast nozzle to the casing.

9. A track sander including a sand box, a casing having sand inlet and discharge passages, one of which communicates With the interior of the sand box and is provided With a curved Wall defining a contracted throat, a blast nozzle disposed Within the casing and having a depending portion proi jecting Within the sand box and provided With intersecting ducts disposed at an angle to each other, one of said ducts discharging into the sand box and interior of the casing at said throat, a defiector adapted to receive the impact of the blast of sand and direct the sand into the discharge passage, and means for securing the blast nozzle in position on the casing.

10. A track sander including a sand box, a casing having sand inlet and discharge passages, a fastening device secured to the casing, a blast nozzle carried by the casing and provided With intersecting passages discharging into the sand box and interior of the casing, respectively, and spaced ears carried by the nozzle and co-acting With the fastening device for detachably securing the blast nozzle in position on the casing.

11. A track sander including a sand box, a casingV secured to the sand box and having sand inlet anddischarge passages, a blast nozzle including a tubular body portion having a depending extension spaced from the Walls of the inlet passage and provided With intersecting ducts, one of which discharges into the sand box and interior of the casing, respectively, and a plug forming a closure for one end of the nozzle, the diameter of the ducts being uniform and of less diameter than the interior of the nozzle.

12. A track sander including a sand box, a casing secured to the sand box and provided ivith sand inlet and discharge passages.

I and a blast nozzle carried by the casing and 13. A track sander including a sand box,

a casing having sand inlet and discharge passages, the inlet passage communicating with the interior of the sand box and having one Wall thereof curved upwardly to form a lip defining a contracted throat, a deflector arranged opposite the throat, a blast nozzle having one end thereof provided With a depending extension formed with intersecting ducts, one of which communicates with the interior of the nozzleV and the other with the interior of the sand box and casing, respectively, said extension of the nozzle projecting Withinthe sand box and having a detachable closure at one end thereof, and a strainer arranged at the other end of the nozzle.

14. A track sander including a sand box, a casing having sand inlet Vand discharge passages, a nozzle arranged Within the casing and having one end thereof provided with a head and its other end formedvvith a depending extension projecting Within the sand box and provided With intersecting ducts, one of Which communicates With the interior of the nozzle and `the other with the interior of the sand box and casing, respectively, a bushing threaded on the headvof the nozzle and provided with a shoulder, a strainer having a flange rest-- ing on the shoulder, and a nipple engaging the bushing and bearing against the flange of the strainer.

15. A track sander including a sand box, a casing having sand inlet and discharge passages and provided With a flat face having a circumferential rib, a blast nozzle extending Within the casing and having one end thereof provided With a depending extension projecting Within the sand box and provided With intersecting ducts, the other end of the nozzle being formed With a head having a groove therein to receive the rib, a bushing engaging the head, a strainer carried by the bushing, and a nipple engaging the bushing and bearing against the strainer for locking the latter against accidental dis placement.

16. A track sander including a sand box,

a casing having sand inlet and discharge passages, the inlet passage having its upper Wall formed With a seat and its lovver Wall defiected upwardly and forwardly to form a terminal lip defining a contracted throat,

a blast nozzle engaging said seat and spaced from the lower wall of the inlet passage, and a deflector arranged opposite the contracted throat of the inlet passage and having its face disposed at an angle to the longitudinal axis of the discharge passage.

17 A track sander including a sand box, a casing having sand inlet and discharge passages, a blast nozzle disposed within the casing and having one end thereof provided with a depending extension formed with intersecting ducts, one of which discharges into the sand box and into the interior of the casing, one Wall of the inlet passage being curved upwardly to form a contracted throat spaced from the adjacent end of the extension of the nozzle, and a deflector arranged opposite the contracted throat for directing the sand into the discharge passage.

18. A track sander including a casing having sand inlet and discharge passages, a nozzle disposed within the casing and including a tubular body portion having a depending head, the side walls of which are inclined downwardly and spaced from the adjacent walls of the inlet passage, said extension being provided with intersecting ducts of uniform diameter and of less diameter than the interior of the body portion, a closure secured to the nozzle above the depending portion thereof, and a strainer disposed in the path of the air passing through said nozzle. A

19. A track sander including a sand box, a casing having sand inlet and discharge passages, one of which communicates with the interior of the box, a deflector, and a blast nozzle disposed within the inlet passage and projecting within the sand box, said nozzle being provided with intersecting ducts, one of which discharges in opposite directions into the sand box and against the deflector, respectively.

20. A track sander including a sand box, a casing having sand inlet and discharge passages, one of which communicates with the interior of the box, a deflector, and a blast nozzle arranged within the inlet passage, said blast nozzle being provided with a duct discharging in opposite directions into the sand box and against said deflector.

21. Atrack sander including a sand box, a casing having sand inlet and discharge passages, the wall of the inlet passage being extended upwardly to form a lip, a deflector arranged within the casing and spaced from the lip, and a blast nozzle disposed within the inlet passage, said blast nozzle being provided with a duct discharging forwardly into the sand box and rearwardly over said lip against the deflector.

22, A track sander including a casing havi'ng inlet and discharge passages, a deflector arranged within the casing, and a blast nozzle disposed within the inlet passage, said blast nozzle being provided with a duct discharging forwardly through the open end of the inlet passage and rearwardly against the defiector.

In testimony whereof I alix my signature in presence of two witnesses.

WALTER B. ROGERS. [L s] Witnesses:

SAMUEL H. Acxnn, EUSTACE C. OWEN.

Copies ot thl patent may be obtained for ve cents each, by addressing the Commissioner of Patente. Washington, D. C.