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Publication numberUS3185512 A
Publication typeGrant
Publication dateMay 25, 1965
Filing dateSep 30, 1963
Priority dateSep 30, 1963
Publication numberUS 3185512 A, US 3185512A, US-A-3185512, US3185512 A, US3185512A
InventorsKilgore Harry A
Original AssigneeGen Motors Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sand delivery nozzle assembly
US 3185512 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

y 5, 1965 H. KILGORE 3,185,512

' I SAND DELIVERY NOZZLE ASSEMBLY Filed p ,1965 2 Sheets-Sheet 1 IN VENTOR. Harry A. Ki/gare May 25, 1965 H. A. KILGORE SAND DELIVERY NOZZLE ASSEMBLY 2 Sheets-Sheet 2 Filed Sept. 30, 1963 INVENTOR Harry A. Ki/gare Nm 0n Om Qv g mm ATTORNEY which undertlieiinfluence of slightly high u operating; operjatingufluid" pressure expands; to dislodge. he obstructionsandforce themthroughgoonstrictions; Isu ch -that: engagement with the constrictions disintegrates- I the obstructing materialso theytm'ay easilyrexit the nozzle. '1 3 ferred embodiment of the. invention. H FIGURE 3 is a cross-sectional. assembly view of an embodiment of the invention. L" V I FIGURE 4 is a plan view ofa modificationofa resil 3,185,512 SAND DELIVERY NOZZLE ASSEMBLY Harry A. Kilgore, Elmhurst, Illl; assignor to General Delaware.

{ Filed Sept. 30, 1963, Ser. No. 312,542

Motors Corporation, Detroit, Mich a corporation of 5 ll Claims. or. 291+ United St te Pat Q.

This invention relates to a sand delivery nozzle assentbly for discharging-sand onto a railwayrail and more particularly to a sand delivery nozzle-incorporating means todischarge material" obstructing ow through the interior'ft-l-iereof while also ii moving ice from the nozzle.

exterior. g s p Considerable work has been done in the past to prevent formation of obstructing material in or to provide: means for removing obstructions from sand delivery nozzles as commonly used on railway vehicles to maintain trac This obstruction usually results from-freezing Water and sand beingagglomera'tedwand compacted to "form a pellet obstructing.

None of the structures de tioti between the wheels and rails;

flow. through: the nozzle.

{thereby providing a fluid sealed coupling; The nipple i rrrember ltlr can be integral with guide member 2 or at- I v Z Referring now to FIGURE 1 of the drawings, a sand delivery nozzle'assembly N is shown adjustably mounted uponapivotal lever L adjacent railway wheel W. The

nozzle assembly'N can be positioned to discharge sand upon rail R to prevent slippage between wheel Wand the rail as needed. i

With reference to FIGURE 2, nozzle assembly N incorporates a guide member 2 which supports a nozzle '4 havinga resilient sleeve 6 attached tl1ereto.- The resilient sleeve fi c omprises a fasteningportion 8 which is l folded over machined surface 9 of a' hose coupling nipple member 10 as indicated. 'Hose nippleg lli contains grooves 12 over which are'inforced rubber hose 14 is disposed "and clamped by conventional clamping means 16 so that material of the hoselm'ember 14 flows into grooves 12 tach'ed by any conventional means as; indicated by Welds 18. v

-Nozzle member 4 comprises a lip or sleeve portion 20which" overlaps guide member grooves 22 and is rigidly'clamped' to' the guide member by conventional clampveloped asiaresult of this work: has overcome this'pr0b lem; therefore, the purpose of thislinvention"is-to provide a reliable sand: delivery nozzle "which efficie'ntly removes obstructionstfrom. itszfiow. path. Y i w Accordingly among the objects of this invention are I the provision of asan ci delivery no'zzle assemblywhicb positivelydislodgesv and breaks up obs-tructionssthatmay" formrwithin its: flowl path; the provision of a sand delivery ;nozzle ;which effectively rmovesflice" from its'exterior p and the provisionj of a. sand delivery nozzle which con structed and.positioned'to. hinderkntrance ofiwater which can freeze andobstruct the fiow thereithrough.

The aforementioned objects are accomplishedby pro viding a: nozzle having anexpandable sleevemember,

The nozzle assembly also incorporates a fiuidzpressurej chamber which is pressurized and expanded outwardly to.

remove ice from its exterior surface. This assemblyis? furtherrdesigned to. include hnyorifice "of a particular configuration and is formed of "a length sufficient to a prevent outside water from entering the assembly'toan extent. the above objects; cannot. be accomplished. I

Referring now to-thetdrawings in which. like reference numerals designat'e likeparts throughoutthe figures there- -of= and'wherein: w s 9' FIGURE 1. isja plan view of sand delivery nozzle of thepresent invention: mounted" adjacent, a railwayloco -i motive wheel. s A p FIGURE 2- is a crosseseotional assembly view'of: a.pre

ient sleeve utilized in the invention;

FIGURE 5-' a plan view of another inodificationfof the resilient sleeve incorporated in= the inventioni FIGURE 6 is a cross-sectional assembly view ofthe preferred embodiment s'hownainitFlGUREfii'further illustrating the resilient sleeve in: an expanded? operational position;

FIGURE 7 is an end view of FIGURE 2 illustrating aaprcferredconfiguration Off the nozzle Orificez x I 3 showingone 70 FIGURE 8-is an end view of FIGURE configuration of ithe nozzle orifice FIGURE-9 is a-partial cross-sectional assembly view' of "a "modification of the invention; i

ing means 24 such zthat portions of lip member 20 flow into grooves 22 toalso provide a fluid tight connection. The nozzle member 4 rfurther comprises a groove 26 I which receives a ring 28 for purposes which will be discussed=in detail later in the specification.

7 An annular nozzle: chamber 3llis formed by'the lip 20 and sleeve 6 foran also later described purpose;

, Asiis; readily .apparent from FIGURE 2, nozzle 4 in conjunction. withuesilient sleeve member 6 provides a fluidlpassage 32' through the assembly. .sleeveimeniber 6 comprises integral supports 34 which The resilient are positioned to define annular spaces 36 between guide "memberz and the sleeve 6. .Guide member 2 is provided with an aperture 38 which: threadably receives a vent Y FIGURE'3 illustratesa modification of the subject invention wherein guide member 2 is modified tocomprise amachined surface 42 which receives a conventional clamping'means l that retains sleeve fasteningfportion 8 of sleeve member 6. Grooves 44 are provided in surface 42 so that clamping member 16 is readily effective to secure theparts in place. resilient sleeve member 6 does not comprise any integral. support surfaces and portion 8 does not overlap the guide member.

With reference to FIGURES, 4 and 5, further embodimentsof resilient sleeve 6 are illustrated wherein a helical,

supporting surface 46- is shown in FIGURE 4 and a sleeve member 6 comprising bulbous supporting projectio'ns ld isshown in FIGURE 5.

shown as assembled. In this embodiment theguide mem- 1 ber 2 is' composed of a flexible but relatively stiff mate rial comparedto that of sleeve 6 andcould. be constructed from a section of'conventional reinforced or wire wound hose. The only requirement is that the guide member must be stiff enough to rigidly support the areas where sleeve 6 engages its interior to provide the desired constrictions in the sleeve. In this arrangement nozzle 4 Patented May 25, 1965' In this embodiment, the

3 is bonded to guide member 2 at 60 and is secured to nipple by clamp 62.

In operation, the sand delivery nozzle assembly N receives a. supply of sand and air through the reinforced rubber hose 14- and operates with sleeve member 6 in a normal position as illustrated in FIGURES 2 and 3 until an obstruction occurs in fluid passage 32. Presence of an obstruction in passage 32 can be sensed by any conventional means that is capable of actuating a system to supply hose 14 and nozzle assembly N with a fluid having a significantly higher pressure than that utilized during normal operating conditions. Injection of this higher pressure fluid expands the resilient sle/eve member 6 as illustrated in FIGURE 6.

With particular reference to FIGURE 6, it is noted that the sleeve supports 34 engage the interior surface of guide member 2 such that the sleeve is expanded into annular spaces 36. Any pressure or any air existing in the annular spaces 36 is forced through vent conduit 46 so that the sleeve member 6 is free to move to its expanded position. It this condition sleeve member 6 comprises a plurality of constrictions 50 which are created at each of the sleeve supports 34. The sleeve expands at 52 between these constrictions and can engage guide member 2 as shown. Nozzle member 4 comprises the previously mentioned groove 26 which receives metallic spring ring 28 to support the nozzle and provide a further constriction St The higher air pressure present in conduit 32 dislodges clogged objects or obstructions in the flow line and forces them progressively through the constrictions 50. Application of the higher fluid pressure initially dislodges the obstruction by either expanding the sleeve or by forcing it through a first constriction and then propels it downstream in a tumbling fashion into and through the remaining constrictions 50. Fluid flow in expanded portions 52 tumbles the obstruction against the next succeeding constriction in a non-aligned manner and forces it through such that it is partially disintegrated. Therefore, it is apparent that as a relatively solid obstructing object is moved through the successive constrictions 50, it will eventually be disintegrated to a size capable of being discharged through nozzle orifice 54.

It should be noted that the overlapping sleeve fastening portion 8 is in substantial axial alignment with the thickness of hose nipple 10 both of which comprise a predetermined dimension such that a snug sliding fit is obtained between portion 8, nipple 10 and the reinforced rubber hose 14. A fluid tight connection between the hose and the nipple implements expansion of the sleeve so that a flow obstruction may be efliciently removed.

Nozzle chamber 30, which is disposed between nozzle lip 20 and sleeve 6 immediately adjacent the terminating downstream end 58 of guide member 2, is formed so that the presence of the higher air pressure within passage 32 results in lip annular portion 56 being expanded outwardly to remove any ice present on the exterior surface of the nozzle.

From the above description, it is obvious this invention affords a sand delivery nozzle construction which readily removes material obstructing flow through the nozzle as the resilient sleeve member is expanded within a rigid guide member and the obstructing material is forced against and through a series of constrictions in a pistonlike manner to completely disintegrate and discharge such material. Expanded portions 52 of sleeve 6 define barrellike chambers which create turbulent fluid flow so that the flow obstruction, when loosened, is tumbled to engage the constrictions in a non-aligned manner. The impact of the obstruction against the constriction and the subsequent forcing of it therethrough assures suflicient disintegration for easy discharge through the nozzle. The subject nozzle assembly is readily attached to a railway vehicle and does not involve any abnormal supporting problems. As illustrated in FIGURE 1, the nozzle assembly N is of sufficient length to prevent water entering and extending the entire length of the resilient sleeve to prevent initial dislodging. It is significant that this nozzle not only provides a positive means of removal of the matter obstructing flow within the nozzle, but it also incorporates an effective means for removing ice from around its exterior discharge area.

I claim:

1. A sand delivery nozzle assembly comprising a rigid guide member, a nozzle member having a resilient sleeve member connected thereto, said sleeve member extending through said guide member in spaced relation to form an annular chamber therebetween, first fastening means sealingly securing the end of said sleeve remote from said nozzle member to said guide member and a supply conduit, and second fastening means sealingly securing said nozzle to said guide member so that said resilient sleeve member may be expanded to dislodge flow obstructing particles from within said sleeve.

2. A sand delivery nozzle assembly as described in claim 1 wherein said resilient sleeve member comprises a plurality of spaced outwardly extending support members on its outer surface which engage said guide member when said sleeve is expanded.

3. A sand delivery nozzle assembly as described in claim 1 wherein said nozzle member comprises expansion means to remove ice from the exterior thereof.

4. A sand delivery nozzle assembly as described in claim 1 wherein said resilient sleeve member comprises a helical outwardly extending support member along the length of its outer surface which engages said guide member when said sleeve is expanded.

5. A sand delivery nozzle assembly as described in claim 1 wherein said nozzle member contains a reinforcing ring.

6. A sand delivery nozzle assembly as described in claim 1 wherein said guide member comprises a vent conduit.

7. A sand delivery nozzle assembly as described in claim 1 wherein said resilient sleeve member comprises a plurality of bulbous support members on its outer surface which engage said guide member when said sleeve is expanded.

8. A sand delivery nozzle assembly as described in claim 1 wherein said nozzle member comprises an elongated oval discharge orifice.

9. A sand delivery nozzle assembly comprising a resilient sleeve member, a nozzle having an elongated oval orifice attached to said sleeve member, a rigid guide member disposed about said sleeve member, a hose coupling member secured to one end of said guide member, said hose coupling member having an annular portion of re-' duced outer diameter at its free end to receive a folded over portion of said resilient sleeve member so that a supply hose may be snugly received thereover, a lip portion of said nozzle overlying the other end of said guide member, said lip portion and said sleeve member defining an annular chamber adjacent the nozzle end of said guide member, means sealingly clamping said lip portion to said guide member, said nozzle member having an annular groove formed therein, a support ring disposed in said nozzle groove, a plurality of support members attached to the outer surface of said sleeve member and engaging the inner surface of said guide member, said support members and said nozzle support ring forming a plurality of flow constrictions when said sleeve member is expanded, and a vent conduit attached to said guide member relieving pressure from the exterior of said sleeve member whereby the application of a predetermined fluid pressure expands said sleeve member between said support members and forces flow obstructions through said supporting member constrictions so as to disintegrate the obstructions for discharge through said nozzle, said annular chamber being positioned to cause said nozzle to expand outwardly when said sleeve is expanded thereby removing ice from the exterior thereof.

10. A sand delivery nozzle assembly comprising a resilient sleeve member, a nozzle member attached to said sleeve member, a rigid guide member disposed about said sleevemember, a hose coupling member secured to one end of said guide member, said hose coupling member having an annular portion of reduced outer diameter at its free end to receive a folded over portion of said resilient sleeve member, said hose coupling member further having a plurality of annular grooves formed in its exterior surface, said grooves being positioned to receive and retain a resilient supply hose whenthe hose is firmly clamped thereabout, an annular sleeve portion of said nozle overlying the other end of said guide member, said annular sleeve portion and said resilient sleeve member defining an annular chamber adjacent the nozzle end of said guide member, said guide member comprising a plurality of grooves beneath said sleeve portion, means sealingly clamping said sleeve portion to said guide member whereby said annular sleeve portion is forced into said grooves, said nozzle member having an annular groove formed therein, a metal support ring disposed in said nozzle groove, a plurality of annular spaced support members attached to the outer surface of said sleevemember and engaging the inner surface of said guide member, said support members and said nozzle support ring forming a plurality of flow constrictions when said resilient sleeve member is expanded, and a vent conduit attached to said guide member relieving pressure from the exterior surface of said sleeve member whereby the application of a predetermined fluid pressure within said sleeve member expands the same between said support members such that flow obstructions are forced through the constrictions and disintegrated for discharge through said nozzle, said annular chamber being positioned to cause said nozzle to expand outwardly when said sleeve is expanded thereby removing ice from the exterior thereof.

11. A device as described in claim 1' wherein said guide member is comprised of a reinforced nonmetallic material.

References Cited by the Examiner UNITED STATES PATENTS 931,444 8/09 Longmire. 1,579,891 4/26 Sandoz' 138-30 2,451,878 10/48 Savercool 291-46 2,528,801 11/50 Turner 291-46 2,608,032 8/52 Garver 51-11 2,631,875 3/53 Blomberg 291-41 2,838,073 6/58 Mattia et a1. 138-30 3,009,647 11/61 Hait 239-201 3,059,935 10/ 62 Vissers 291-44 LEO QUACKENBUSH, Primary Examiner.

- ARTHUR L. LA POINT, Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US931444 *Aug 17, 1909Edwin C HathawayDevice for sanding tracks.
US1579891 *Dec 27, 1924Apr 6, 1926Charles SandozExpansion vessel for use in rotary pumps for viscous liquids
US2451878 *Oct 15, 1946Oct 19, 1948Savercool John DSanding nozzle
US2528801 *Nov 18, 1949Nov 7, 1950Morris B Brewster Co IncSand delivery pipe nozzle
US2608032 *Aug 29, 1950Aug 26, 1952Pangborn CorpSuction blast gun
US2631875 *Jul 1, 1946Mar 17, 1953Gen Motors CorpBrake shoe and sander support adjusting means for railway vehicle brakes
US2838073 *Sep 1, 1953Jun 10, 1958Bruce John NSurge pressure absorber
US3009647 *Jun 23, 1958Nov 21, 1961Fmc CorpWhip type sprinkler
US3059935 *Jun 12, 1961Oct 23, 1962Landbouwwerktuigen & MaschfApparatus for spreading pulverized or granular fertilizers
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3352333 *Mar 31, 1965Nov 14, 1967Carrier CorpSpray gun for cleaning tubes having radially expansible means for sealingly engagingsaid tube
US3883078 *Aug 31, 1973May 13, 1975Bashkatov Alexandr NikolaevichMethod and a device for gunniting converter linings
US4339406 *Sep 22, 1980Jul 13, 19823U PartnersProcess of forming a nozzle
US5118142 *Oct 9, 1990Jun 2, 1992Bish Stephen LTraction device
DE19728432A1 *Jul 3, 1997Jan 7, 1999Duewag AgSand spreading device, especially for rail vehicles
Classifications
U.S. Classification291/46, 239/602
International ClassificationB61C15/10, B61C15/00
Cooperative ClassificationB61C15/102
European ClassificationB61C15/10B