US1252211A - Sanding device for locomotives. - Google Patents

Description

W. H. WHITE.

SANDING DEVICE FOR LOCOMOTIVES.

'APPLICATION FILED MAY 4, 1917.

1,252,21L Patented Jan. 1,1918.

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lNveNTo W!TNESSES E6 ATTORN EY Patented Jan. 1,1918.

Z..SHEETSSHEET L W. H. WHITE.

SANDING DEVICE FOR LOCOMOTIVES.

APPLICATION. FILED MAY 4, 19H- INVENTOR if/1'02 ffW/ii/ZQ Z5 gy- ATTORN EY air 1 area,

WILLIAM H. WHITE, or ROANOKE, VIRGINIA, ASSIGNOR T WHITE-AMERICAN LOCO- MOTIVE SANDER, COMPANY, INC., or ROANOKE, VIRGINIA, A CORPORATION or VIRGINIA.

SANDING DEVICE FOR LOCOMOTIVES.

Specification of Letters Patent.

Application filed May 4, 1917. Serial No. 166,401.

To all whom it may concern:

Be it known that 1, WILLIAM H. WHITE, a citizen of the United States, residing at Roanoke, in the county of Roanoke and State of Virginia, have invented new and useful Improvements in Sanding Devices for Locomotives, of which the following is a specification.

This invention is a sanding device for lo comotives of that general type shown in my prior Patents No. 1,086,964,- dated Feb. 10, 1914, No. 1,117,119, dated Nov. 10, 1914, No. 1,180,217, dated April 18, 1916, No. 1,201,126, dated Oct. 10, 1916, and is more particularly directed to improving the construction disclosed in my Patent No. 1,226,427, dated May 15, 1917.

The construction shown in my Patent No. 1,226,12Z, dated May 15, 1917, discloses a sand trap having a sand channel comprising vertical and horizontal portions, respectively, connected with the sand and delivery pipes, a blast nozzle projecting into the channel at the angle of intersection of the vertical and horizontal portions, and clean outpipes disposed respectively within the vertical branch of the channel and the sand supply pipe and within the delivery pipe, so that the blasts of air may be supplied to prevent choking of the supply and delivery pipes or any undue accumulation of the sand therein.

I have also disclosed air supplying connections for the feeding of air to the clean out pipes from a common sourceJof-supply designed to overcome certain objections in my former patents, and the form disclosed in my allowed application is such that the connection is a duct formedin the body of the sand trap above the horizontal sand channel and extending vertically into the vertical portion of the sand pipe.

To overcome the objections that have been found from practical experience toreside in the former constructions, the. present invenf tion has for one of its objects to provide the. delivery end of the horizontal portion with' two threaded outlets of the same diameter, to either one of which may be connected the sand delivery pipe thereby forming a sand trap body that may "beutilized upon all types of locomotives regardless of their exterior parts,-and closing the other channel outlet with a plug to the end that the body may. be unitary with the Y connection so ing the outlets so that they will lie in position to permit the air to blow through the sand outlets in an axial direction to clear the one in use should it be obstructed.

A still further object is to provide the lower side of the horizontal portion of the sand trap with a swelled portion adjacent one branch of the Y to serve as a barrier to prevent the sand from moving to that branch except as impelled by the air blast.

One purpose of the invention is to provide a construction and arrangement of the clean out pipes, duct, and connections, which permits them to be more conveniently arranged to more eficiently perform their several functions.

Another purpose of the invention is to provide a construction whereby the clean out air duct and clean out pipes will be disposed entirely above the line of the sand channel, thus enabling the air supplying connections thereto to be placed at a point above the sand trap when convenient and also enabling the upper Wall of the channel to be made of air blasts and'thus increase the durability of the trap. 7

A further purpose is to provide a sand trap and its connections as a unitary structure that will embody strength, ease of con-- nection, and one that will be cheap to manufacture. U i

The invention, broadly stated, comprises a sand trap having a body portion formed with vertical and horizontal channels terminating in outlets and inlets, a clean out duct ion-med in' the upper wall of the horizontal channel and adapted to extendv past the intersection of the two chanels in a vertical direction. and have connected thereto a clean out pipe provided with suitable downwardly directed apertures, which pipe is disposed within the sand supply pipe, the clean out duct being provided with two outlets, one of which is angularly positioned With "reference to the axis, said outlets being threaded and adapted to be closed by a plug that may be inserted into either one if desired, the horizontal channel being formed to have two outlets which comprise a Yshaped connection formed integrally with the body of the sand trap, said outlets being threaded and adapted to be closed by a plug, which may be inserted into either one, respectively, and means to supply air to the clean out duct for the purpose of blowing the sand through the delivery outlets, the threaded outlets of the air duct being so positioned that they will permit the air to be blown therethrough and through the delivery outlets in an axial direction so as to clear the delivery outlets of any sand or other obstructions.

One practical form of the invention will be described and illustrated in the accompanying drawings, in which Figure 1 is a fragmentary side elevation of a locomotive showing the application of the invention;

Fig. 2 is a side elevation of the sand trap detached;

Fig. 3 is a vertical longitudinal section of the same;

Fig. 1 is a sectional view on the line 44 of Fig. 3; and

Fig. 5 is a sectional view on the line 55 of Fig. 3. p

In the preferred embodiment of my improved trap, the body is preferably L-shaped and is provided with. a vertical or inlet por tion 2, and a lateral or horizontal portion 3. The vertical portion 2 connects with the end of a sand supply pipe l, which leads from the sand box 5. The horizontal portion 3 connects with a delivery or sanding pipe 6, through which the sand is conducted to the track.

The body 1 is interiorly and longitudinally cored to produce a sand channel 7, which extends Vertically into the vertical portion 2 and into the horizontal portion 3, the vertical branch being directly connected with the sand supply pipe 4 to receive the sand therefrom, and the horizontal branch being directly connected with the sand delivery pipe for the discharge of the sand in the sanding action to the track.

Arranged at the point of intersection of the vertical and horizontal branches of the sand channel is a blast nozzle 8, through which compressed air is supplied to discharge the sand through the horizontal branch of the channel and into the delivery pipe. This nozzle 8 may be, and preferably is, of one of the forms disclosed in my allowed application referred to, but may be of any other suitable construction.

Extending longitudinally within the vertical branch 2 of the sand channel 7 and throughout the length of the sand supply pipe 1 is a blast tube or duct 9 which is closed at its upper end. This tube is provided at points throughout its length with openings.

perforations or jet apertures 10, through which jets of compressed air are injected into the supply pipe and vertical branch of the channel for the purpose of producing a blast to prevent the clogging or undue accumulation of sand within the pipe or channel. As shown, these perforations are angularly positioned so that the air is directed downward toward the horizontal channel, and they are adapted by this angular position to produce a swirling action, and thus more easily clear the vertical portion of any undue accumulation. To further assist in producing this function, the perforations are spirally arranged so that the normal movement of the sand through the horizontal branch is aided.

Extending longitudinally from the delivery end of the horizontal portion of the sand channel and terminatingadjacent the sand delivery pipe 6, is an auxiliary blast tube or duct 11. This tube 11 is adapted to connect by means of a curved end indicated at 12 with the blast tube or duct 9.

To permit compressed air to be admitted to the tube 11 and its curved end 12, a compressed air pipe 13 may be secured thereto, which is adapted to be connected to a source of compressed air.

The tube 11 is provided in a longitudinal direction with an outlet having threads formed therein, and to cooperate with this threaded end is a plug 14:. The tube 11 by means of its position lying in a horizontal direction within the horizontal portion of the channel 7 serves to direct a b ast of air for cleaning purposes into the delivery pipe 6 when it has been connected to the outlet end indicated at 15. This outlet end is provided with suitable threads and to engage with these threads and close the opening a plug 16 is further provided.

The blast tube 11 is provided also with a threaded hole indicated at 17 which is angularly disposed with the longitudinal axis of the tube 11 so that air may pass through this opening 17 and be directed into the delivery pipe 6 in an axial direction. The plug 14 is adapted to be inserted within the threaded opening 17, as the two openings are of the same size, and, therefore, the plug will be interchangeable with either of these Connecting with the lower side of the horizontal portion 3 is an outlet end indicated at 18, which is adapted to be connected with a supply pipe 6. This end is threaded, and preferably has the same sized threaded opening as the one into which the plug 16 is now placed. Thus the plug 16 may be employed to repose in either one of the two openings, and the supply pipe 6 may be connected also with either one of these openings.

As the end 18 projects at an angle through the horizontal portion 3, a Y is formed which hetaeii permits the delivery pipe be attached without interference with the appurtenances that may be'mounted upon the exterior of the locomotive. The "Y is thus shown as being formed inte ml with the trap.

Formed upon t e lower wall of the horizontal portion 3 adjacent the angle formed by the end 18 therewith is an enlarged or swelled portion indicated at 19. The angle formed in the wall is thus thickened, and a barrier or trap is produced which tends to prevent the sand from passing into the de livery tube 6 by its own weight or by the vibrations of the locomotive. The blast nozzle 8 is provided with a threaded end which is adapted to be screwed into the nipple 20. The nipple 20 is provided with a bore indicated at 21, through the longi tudinal axis of the nipple and connecting with this bore 21 is -a hemispherical chamber 23. Extending from the chamber- 23 is a threaded hole which is adapted, to. cooperate with another nipple indicated at 24.

The nipple 24 is provided with a flat end through which pass holes 25, angularly disposed so as to d1rect the air against the wall of the chamber 23 to expand therein. The nipple 24 is also provided with a bore 26, and to connect this bore and the nipple 24 is a pipe 27 which connects with a suitable source of compressed air.

To varythe movement of the nipples 20 and 24, a'lock nut 28 is provided, and after the nozzle has been moved in or out to determine its proper position, the nipples and the nozzle may be locked in firm engagement with the sand trap body, which has the flat shoulder formed thereon to contact with this lock nut 28.

Disposed above the opening for the nozzle 8 and in the vertical portion isa threaded hole which is adapted to be closed by means of the plug 29. This plug 29 will permit entrance into the vertical portion for any other additional cleaning that may be necessary. Where the sand delivery pipe 4 is screwed into the vertical portion 2, the end of the vertical portion is formed as a hexagon, as indicated at 30.

The pipe 13, which is adapted to communicate with the blast tube '11 and its curved portion 12, is provided with a threaded end to cooperate with suitable threads which are formed in the boss 31, which is disposed upon the upper side of the horizontal portion 3. The outlet ends 15 and 18 are also formed as hexagons.

When. the sand supply pipe 4 is connected to a suitable source, and the sand is permitted to enter this pipe, it passes downward, substantially filling the vertical portion 2 until its outer end rests against the barrier 19. As shown, thedelivery pipe 6 is connected to the outlet end 18, and when it is desired to sand the track through this outlet end, compressed air is admitted to the nozzle 8, which drives the sand in front of and then up against the end of the plug 16, where the air and sand are thoroughly mixed and driven outward through the delivery pipe 6 to the track.

pressed air leaving the nozzle 8 directs the sand-and air through the outlet end 15 into a the delivery pipe'6. At this time the plug 14 has been withdrawn from the end of the clean out tube 11 and inserted into the outlet 17. When it is desired to perform a clean out operation with the plug in this position, the air is directed through this opening at the end of the blast tube 11.

. What is claimed as new is 1. A sand trap having a horizontal portion and a vertical portion, said horizontal portion being provided with a Y-shaped end having threaded outlets, a plug adapted to engage with and close one of the outlets when not in use, a duct extending longitudinally of the trap in the upper wall of said horizontal portion and partially into said vertical portion, blast elements connected with the opposite ends of said duct, andian air supply conductor leading into the duct between said blast devices.

2. A sand trap having a horizontal portion with a Y-shaped outlet end and a vertical portion, the upper wall of the horizontal portion beingprovided with a longitudinally extending duct, said dlict being provided with threaded outlets adapted to direct air to the outlets of the Y, a blast pipe arranged within the'vertical portion of the trap and communicating at its lower end with said duct, a blast device projecting horizontally beyond the delivery end of the horizontal portion of the trap and communi eating at its inner end with said duct and an air supply conductor communicating with said duct between said blast devices:

3. A sand trap comprising a vertical portion and a horizontal portion having a Y outlet end for connection with a delivery pipe, a plug adapted to be inserted into either one of the branches of the Y, a blast nozzle projecting into the trap at the angle of intersection of said portions, the upper wall'bf the horizontal portion being provided with a longitudinally extending duct that projects into the vertical portion, the

horizontal part of said duct being provided with threaded outlets, each of which is adapted to be closed by a plug, one of said outlets being angularly positioned with reference to the bore of the duct to serve as a -blast outlet, a blast device for the projecting end of the duct disposed withinthe vertical portion of the trap, a second blast device projecting into the horizontal portion serving to direct the air to one of the outlets of the Y, and means to connect the blast devices with a source of compressed air.

4. A sand trap comprising a vertical portion and a horizontal portion, a plurality of threaded delivery outlets for the horizontal portion producing a Y-shaped end and a unitary structure with. the trap, a screw plug adapted to cooperate with either one of the outlets, said horizontal portion being provided on its lower wall with a swelled part adjacent the angle formed by one of the branches of the Y With said portion serving as a barrier for the sand, and means disposed in the upper Wall of the horizontal t am portion to direct compressed air in a line With the axis of the branch extending from the lower Wall of the Y.

5. A sand trap comprising a vertical portion and a horizontal portion, a duct formed in the upper Wall of the horizontal portion curving upwardly and terminating in the vertical portion, the horizontal portion of said duct being provided with threaded outlets, a plurality of threaded delivery outlets formed in the end of the horizontal portion adjacent the threaded outlets of the duct, a delivery pipe adapted to be connected with either one of the delivery outlets, means to close the duct outlet adjacent the unused delivery outlet, and means to feed fluid under pressure to the interior of the trap and to the duct.

In testimony whereof I attix my signature.

WILLIAM H. WHITE.

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