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Publication numberUS3630453 A
Publication typeGrant
Publication dateDec 28, 1971
Filing dateFeb 20, 1970
Priority dateFeb 20, 1970
Also published asCA923942A1, DE2108097A1
Publication numberUS 3630453 A, US 3630453A, US-A-3630453, US3630453 A, US3630453A
InventorsLane John R, Walley Kenneth A
Original AssigneeUnited States Steel Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Adjustable elongated spray nozzle
US 3630453 A
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Description  (OCR text may contain errors)

United States Patent John R. Lane;

Kenneth A. Walley, both of Pittsburgh, Calif.

Appl. No. 13,244

Filed Feb. 20, 1970 Patented Dec. 28, 1971 Assignee United States Steel Corporation lnventors ADJUSTABLE ELONGATED SPRAY NOZZLE 3 Chime, 4 Drawing F19.

US. 239/437, 239/455, 239/597 Int. A62c 31/00 Field of Search 239/437, 438, 455, 456, 458, 537, 538, 597, 583, 563, 569; 16/171, 178

[56] References Cited UNITED STATES PATENTS 1,538,877 5/1925 Baty 16/178X 3,040,523 6/1962 Price 239/455 X 3,182,867 5/1965 Barosko et 8.1. 239/563 X 3,341,354 9/1967 Woods 01 al. 239/597 X Primary Examiner-- Lloyd L. King Assistant Examiner-Thomas C. Culp, Jr. Attorney-Ralph H. Dougherty ABSTRACT: Two concentric, longitudinally slotted tubes form an adjustable elongated spray nozzle. When the nozzle becomes clogged, it can be flushed by manipulating an adjusting handle external to the apparatus.

2 Sheets-Sheet 1 Attorney Patented Dec. 2 8, 1971 Patented Dec. 28, 1971 v 7 3,630,453

. 2 Sheets-Sheet 2 nvmvron's f .xomv 1?. LANE a KENNETH A. WALLEY Allamey Although our invention is not thus limited, it is especially useful in the spraying of steel strip in electrolytic tinning lines.

Previous spray nozzles for electrolyte tinning lines are unreliable and tend to become clogged. The use of filters in spray lines has reduced but not completely eliminated clogging of the sprays. In order to obtain the spray pattern necessary for complete rinsing of tinplate, nozzles having small orifices are required. A nozzle having an orifice less than five sixty-fourths of an inch wide usually is equipped with a screen to prevent clogging of the nozzle. Ironically, it is the clogging of the screen which renders the nozzle useless. Clogged sprays cause poor product quality, as well as high spray nozzle maintenance costs. Nozzle failure can cause dull tinplate, a streaky appearance, poor corrosion performance, poor tin adhesion, and can adversely affect soldering properties. When spray nozzles become clogged, operators of tinplate lines are driven to merely drilling holes in the spray header to provide some semblance of spray water and to keep the line operating. Previous elongated spray nozzles are not adjustable. Spray heads or nozzles must be changed to adjust the volumetric flow of liquid.

It is an object of our invention to provide an elongated spray nozzle capable of being cleaned without interrupting operation of a production line.

It is a further object of our invention to provide an elongated spray which is capable of adjustment during operation.

In the drawings:

FIG. 1 is a partially cutaway front elevation view of the assembled nozzle of our invention.

FIG. 2 is an end elevation view of the nozzle of FIG. 1.

FIG. 3 is a cross section view taken along the line IIIIII of FIG. 1 but showing the nozzle parts in their cleanout position.

FIG. 4 is a cross section view taken along the line IV-IV of FIG. 1 showing the nozzle parts in their operating position.

Referring now to FIG. 1, our invented spray nozzle comprises two round tubular sections and 12 disposed one within the other. Outer tube 12 is rotatably secured on tube 10 by fixed collar 13 and removable collar 14, the latter being secured to tube 10 by setscrews 15. A slot 17 is milled substantially the length of tube 10. A recess 18 (FIG. 3) is milled along slot 17 to provide a seat for bar 19. Bar 19, which is attached in recess 18 by screws 20, forms the upper lip of a spray orifice 21. Both ends of the bar are milled to fit under collars l3 and 14. The lower lip of the spray orifice is formed by the lower edge of slot 22 which extends the length of tube 12. Tubes 10 and 12 are sealed against leakage by nylon rods 24 disposed in grooves 25 and 26 milled in tube 10. If necessary, means such as setscrews 28 can be provided to maintain the concentric relationship of the tubes. Setscrews 28 are preferably nylon or other relatively friction-free material to facilitate rotation of tube 12. One end of tube 10 has internal threads 29 to receive a pipe connection from the treating liquid supply line (not shown).

Collar 14 carries a C-shaped stop member 34 which is attached to the treating apparatus (not shown). A rod 38 is rotatable in bore 39 of the collar, which rod 38 extends into tube 10. Leakage of treating solution around rod 38 is prevented by sealing rings 40 in annular grooves 41. Rod 38 has an actuating handle 42 which is held in place by a tapered pin 43. Rod 38 carries a radially extending arm 45 (FIG. 4) which projects through openings 49 and 50 in tubes 10 and 12 respectively. Ears 46 are fixed to the outer end of this arm and are joined to tube 12 with screws 51. The width of orifice 21 is regulated by rotation of tube 12, which is controlled by manipulation of handle 42. Clockwise rotation of handle 42, as shown in FIG. 2, is limited by setscrew 53, the position of which can be fixed by locknut 54. Counterclockwise rotation of the handle is limited by the protruding portion ofstop member 34. Consequently, the lips of orifice 21 cannot be damaged by closing them too tightly.

Liquid spray solution IS introduced into the nozzle through the end containing threads 29. Proper adjustment of the orifice 21 assures uniformity of the resultant spray throughout the length of the nozzle. Whenever the spray nozzle becomes clogged, the nozzle orifice is cleaned by flushing, which is accomplished by opening orifice 21 to the position shown in FIG. 3. The on'fice can then be immediately closed to its original setting by rotating the handle in the opposite direction.

From the foregoing description, it is readily apparent that our invention affords a simple nozzle construction capable of being cleaned and adjusted quickly and without interrupting the operation of an electrolytic tinning line.

We claim:

1. A nozzle comprising inner and outer elongated concentrically arranged tubes, said inner tube having a fluid inlet in one end, said outer tube having means sealing the end opposite said fluid inlet, said tubes having respective lengthwise slots in their walls, a lip fixed to said inner tube along one edge of the slot thereof and projecting into the slot of said outer tube, said lip and one edge of the slot of said outer tube defining an elongated orifice, and means for rotating one of said tubes relative to the other to vary the width of said orifice.

2. A nozzle as defined in claim 1 in which said means includes a rod rotatably mounted in said inner tube, and an arm carried by said rod and fixed to said outer tube, said inner tube having an enlarged opening through which said arm projects.

3. A nozzle as defined in claim 2 including an actuating handle attached to said rod and a stop member into which said handle extends, which stop member limits angular rotation of said handle.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1538877 *Jul 29, 1920May 19, 1925Gen Motors CorpMotor-vehicle-hood hinge
US3040523 *Oct 23, 1958Jun 26, 1962Price Nathan CVariable area propulsive nozzle
US3182867 *Nov 18, 1963May 11, 1965Walker Mfg CoDispensing mechanism
US3341354 *Mar 11, 1964Sep 12, 1967Continental Oil CoCurtain coating method and apparatus for applying a non-uniform liquid coating material to sheet stock
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3841557 *Oct 6, 1972Oct 15, 1974Nat Steel CorpCoating thickness control and fluid handling
US3877510 *Jan 16, 1973Apr 15, 1975Concast IncApparatus for cooling a continuously cast strand incorporating coolant spray nozzles providing controlled spray pattern
US3970192 *Sep 16, 1974Jul 20, 1976Carl von WolffradtNozzle apparatus for a conveyor belt system
US4452397 *Apr 1, 1982Jun 5, 1984Barton Robert IIrrigation system
US5388285 *Apr 18, 1994Feb 14, 1995Belniak; Alfred J.Swimming pool waterfall
US5941463 *Mar 21, 1997Aug 24, 1999Nordson CoporationSpray gun with rotatably adjustable nozzle
US6010078 *Jul 31, 1997Jan 4, 2000Voith Sulzer Papiermaschinen GmbhDistributing apparatus with tubular manifold for an applicator
US7389953 *Nov 20, 2003Jun 24, 2008Paul Wurth S.A.Spray head for a granulating system
US7563322Apr 9, 2007Jul 21, 2009West Virginia UniversityMethod and apparatus for online flow control over the span of a high aspect ratio slot jet
U.S. Classification239/437, 239/455, 239/597
International ClassificationB05B1/04, B05B1/30, B05B1/02, B05B1/32, B05B15/02
Cooperative ClassificationB05B15/02, B05B1/32, B05B1/044
European ClassificationB05B15/02, B05B1/32, B05B1/04F