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Publication numberUS2721535 A
Publication typeGrant
Publication dateOct 25, 1955
Filing dateNov 9, 1953
Priority dateNov 9, 1953
Publication numberUS 2721535 A, US 2721535A, US-A-2721535, US2721535 A, US2721535A
InventorsZitkus Victor J
Original AssigneeOwens Illinois Glass Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for decorating glassware
US 2721535 A
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Description  (OCR text may contain errors)

Oct- 25, 1955 v. J. ZlTKUS APPARATUS FOR DECORATING GLASSWARE 2 Sheets-Sheet 1 Filed Nov. 9, 1953 VICTOR JZITKUS Oct. 25, 1955 v J z us 2,721,535

I NG GLASSWARE United States APPARATUS FOR DEC'ORATING GLASSWARE Victor J. Zitkus, Toledo, Ohio, assignor to Owens-Illinois Glass Company, a corporation of Qhio The present invention relates to apparatus for decorating articles of glassware, such as tumblers and the like.

It is common practice to spray frost, or similarly apply an overall decorative coating to the exterior surface of tumblers and like articles, such being accomplished by supporting the articles in a rotatable chuck, or holder and rotating same while the article is in the path of the coating material being sprayed from a suitable spray gun. Such operation, as indicated, results in complete coating of the exterior surface.

Experience has proved that an overall coating, particularly the customary white frosting is in some respects objectionable. For example, where such frosting extends to the rim or lip, of the tumbler, as it usually does, it frequently becomes discolored with lipstick, etc., which is exceedingly diflicult to remove, as compared with the ease of removal from clear glass.

An object of my invention therefore is the provision of novel and efficient means whereby the application of such frosting may be omitted from the extreme upper area to thereby provide a plain band of uncoated glass at and in proximity to the rim portion.

atent O Another object of my invention is the provision of novel means for effecting a sharp definition and uniform thickness of the upper margin of the frosting, or other coating applied to a tumbler or such article.

A further object of my invention is the provision of means utilizing air under pressure to define the upper margin of such applied coating material.

Other objects will be in part apparent and in part pointed out hereinafter.

In the drawings:

Fig. 1 is a sectional elevational view of my invention;

Fig. 2 is a detail vertical sectional view of the combined upper chucking means and air spray head; and

Fig. 3 is a sectional view taken along the line 33 of Fig. 2.

In the illustrated embodiment of my invention it is shown as including a supporting frame 10 for chucking means designed to rotatably support a tumbler 11, or such substantially cylindrical article, in the path of a liquid spray 12 of coating material being discharged by a spray gun 13, or like device. Such coating material may be a colored paint, or a white frosting material and is applied as a continuous coating to the exterior surface of the artcile.

The chucking means comprises a driven base chuck 14 with its axis vertically disposed and a pulley 15, over which a driven belt 16 is trained. This chuck is recessed on its upper side to receive the base of the tumbler 11. A head chuck and air directing unit '17 is positioned above and coaxial with the base chuck 14, such being freely rotatably mounted on a tubular support 18 which also conducts air under pressure to the unit 17, as will be brought out in greater detail hereinafter. The tumbler 11 locks the base and head chucks together, so that both rotate with the tumbler incident "ice to positive driving of the base chuck by means of the belt 16.

The head chuck and air directing unit 17 comprises a carrier 19 rotatably mounted upon the lower end of the tube 18, there being a ball-bearing mounting 20 to permit free rotary movement of said carrier. A combined centering and closing disk 21 is suspended from the carrier in vertical spaced relation thereto by means of screws 22 or bolts. This disk may be formed of metal, or perhaps a rubber composition, or some such material which will minimize the likelihood of chipping the rim of the tumbler 11 with which it makes sealing contact. Preferably the lower side of this disk has its marginal portion 23 tapered upwardly and outwardly so that the disk in part projects into the tumbler and functions not only to seal the latter, but also aids in centering same.

In order to restrict the application of the coating material to a surface spaced from the upper end of the tumbler and define a sharp clean upper margin for such coating, I direct an annular sheet of air under pressure inwardly and slightly downward against the outer surface of the glass at the desired level. This sheet of air provides an effective barrier to the passage of the coating material above the desired point. Thus the tumbler has a clear uncoated area at and in proximity to the rim portion.

The air sheet directing, or applying means, comprises an inverted circular cup-like hood 24 firmly held against the lower side of the carrier 19 by means of an inwardly extending flange 25 which rests upon the marginal portion of the aforementioned centering disk 21. The side wall 26 is of suflicient height to provide a distributor chamber 27 between the centering disk 21 and upper wall of the hood, such chamber being in communication with the air pressure supply tube 18 and an annular series of vertical ports 28 formed in the hood side wall 26.

These ports 28 are formed in a transversely thickened section of the side wall 26 and open at their lower ends into an annular chamber 29 which in turn has a discharge slot 30 at its lower side. This slot tapers downwardly and generally radially inward toward the axis of the hood. One wall 31 of this slot is formed by beveling the lower end of side wall 26 in proximity to its inner vertical surface While the other wall 32 is formed by a tapered annular flange 33 carried by a collar 34 which is secured to the wall 26 by screws 35, or like fasteners. The flange and collar, as is apparent, also comprise the outer and lower walls of the annular chamber 29.

The mechanism for supplying air under pressure to the tube 18 and thence to the hood 24 and for moving the carrier 19 with parts associated therewith is mounted upon the frame 10. It includes a vertical guide sleeve 36 for the air supply tube 18 carried by an arm 37 which is pivoted for vertical swinging movement upon a horizontal pivot pin 38, the latter being mounted in a bearing 39 on said frame. A stop 40 on the lower side of the arm 37 limits downward movement of the latter to insure vertical axial alignment of the tube 18 and carrier 19 with the base chuck 14. A coil spring 41 yieldingly holds the arm 37 and parts carried thereby in the full line position shown. An inward extension 42, or finger, on this arm 37 is adapted for engagement with an actuating lever 43 when the carrier 19 is to be .moved to and from the dotted line position shown. 1

This lever is pivoted to the aforementioned pivot pin 38 and at its forward end is connected to collar 44 carried by the air supply tube 13. An extension 45 at the inner end of the lever 43 is movable downwardly about the pivot pin 38, and in opposition to the pull spring 46, by

means of a cam 47, or some equivalent means. Thus the lever is moved to axially shift the tube 18 and parts carried thereby to either clear, or enclose, the open end ofthe tumbler 11, depending upon the direction of movement of said lever. If the forward end of the lever is moving upwardly preparatory to removal of the tumbler 11, the extension 45 is brought into contact with the finger 42 on the pivoted arm 37 after the hood 24 has cleared the tumbler. Continued movement of said lever correspondingly moves the arm 37 causing outward swinging of the carrier 19, hood 24 and associated parts to the dotted line position (Fig. 1), thereby facilitating both loading and unloading of the chuck. Air under pressure is supplied to the tube 18 through a flexible pipe line 48 provided with a pressure gauge 49. The foregoing mechanism for moving the carrier 19 and associated parts of the head chuck 17, is merely one example of a convenient means for accomplishing the desired result. A complete machine may comprise an annular series of such units in which event the cam 47 would be elongated and extend partly about the machine axis.

I have determined that the air pressure is exceedingly important. If the pressure is too low there is a strong tendency for the upper margin of the applied coating to be irregular and feathered. On the other hand, too high a pressure results in a heavy layer at said margin. According to my experience, pressure of approximately five to six p. s. i. produces very satisfactory results.

Modifications may be resorted to within the spirit and scope of the appended claims.

I claim:

1. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotat ing the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while. the latter is rotating, and means in part encircling the closing and centering member for directing an annular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said member.

2. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating, means in part encircling the member, and means for yieldingly holding the centering member in engagement with the article.

3. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and aritcle, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating, means in part encircling the closing and centering member for directing an annular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said member, means for yieldingly holding the centering member in engagement with the article, and means for moving the centering member and air directing means as a unit axially away from the article to release the latter for removal from the chucks.

4. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating, and means in part encircling the closing and centering member for directing an annular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said memebr, said air directing means being mounted for rotation with the centering member and being coaxial therewith.

5. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating, means in part encircling the closing and centering member for directing anannular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said member, said air directing means being mounted for rotation with the centering member and being coaxial therewith, and a supply pipe for air under pressure connected to said air directing means.

6. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating and means in part encircling the closing and centering member for directing an annular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said member, said air directing means including an annular series of ports and an annular slot communicating with said ports and having an outlet for the air facing said article.

7. In combination, means for supporting a generally cylindrical article for rotation about its axis, comprising spaced axially aligned chucks, one chuck including an article end closing and centering member, means for rotating the chucks and article, means for spraying a liquid coating material upon the exterior surface of the article while the latter is rotating, and means in part encircling the closing and centering member for directing an annular sheet of air under pressure inwardly and in a direction slightly away from the closing and centering means against a peripheral surface of the article in proximity to said member, said air directing means including an annular series of ports and an inclined annular discharge slot.

8. In combination, chuck means for supporting a generally cylindrical tumbler with its axis extending substantially vertically and with its open end upward, said chuck means including a driven rotatable base chuck, a head chuck coaxial with the base chuck and including a combined centering and closing member partially insertable into and engageable with the open end of the tumbler, a freely rotatable carrier for said centering member, means on the carrier for directing an annular sheet of air under pressure substantially radially inward against a narrow peripheral surface of the tumbler, and means for spraying a liquid coating material onto the exterior surface of the tumbler during rotation thereof.

9. In combination, chuck means for supporting a generally cylindrical tumbler with its axis extending substantially vertically and with its open end upward, said chuck means including a driven rotatable base chuck, a

head chuck coaxial with the base chuck and including a combined centering and closing member partially insertable into and engageable with the open end of the tumbler, a freely rotatable carrier for said centering member,

means on the carrier for directing an annular sheet of air under pressure substantially radially inward against a narrow peripheral surface of the tumbler, and means for spraying a liquid coating material onto the exterior surface of the tumbler during rotation thereof, said air directing means including an annular collar depending from said carrier and encircling the centering member, an annular series of air ports in said collar and a radially downwardly and inwardly extending discharge slot communicating with said ports.

10. In combination, chuck means for supporting a generally cylindrical tumbler with its axis extending substantially vertically and with its open end upward, said chuck means including a driven rotatable base chuck, a head chuck coaxial with the base chuck and including a combined centering and closing member partially insertable into and engageable with the open end of the tumbler, a freely rotatable carrier for said centering member, means on the carrier for directing an annular sheet of air under pressure substantially radially inward against a narrow peripheral surface of the tumbler, and means for spraying a liquid coating material onto the exterior surface of the tumbler during rotation thereof, said air directing means including an inverted cup-like hood suspended from the centering member coaxially therewith and enclosing the latter, said hood having an annular chamber at its lower end and an annular discharge slot directed generally radially inward and downward toward the axis of said hood, said hood also having an annular series of vertical ports opening into the annular chamber, and means for supplying air under pressure to said ports.

References Cited in the file of this patent UNITED STATES PATENTS 1,226,856 Bradley May 22, 1917 1,347,994 Day July 27, 1920 2,084,094 Kronguest et al June 15, 1937 2,088,542 Westin July 27, 1937

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1226856 *Oct 5, 1916May 22, 1917Bradley & Vrooman CompanyHanger.
US1347994 *Jun 22, 1917Jul 27, 1920Spray Engineering CoMechanism for applying coating to shells and other articles
US2084094 *Dec 31, 1935Jun 15, 1937Continental Can CoMachine for coating cans
US2088542 *Oct 6, 1933Jul 27, 1937Stokes Machine CoAutomatic coating machine
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3024184 *Sep 29, 1958Mar 6, 1962Sylvania Electric ProdElectrophoretic article coating machine
US3311085 *May 10, 1965Mar 28, 1967Smith Millard FApparatus for coating objects
US3440078 *Mar 16, 1966Apr 22, 1969Polymer CorpHolding and masking device
US3482545 *Aug 9, 1965Dec 9, 1969Globe Tool Eng CoSpray coating apparatus
US3631837 *Nov 24, 1969Jan 4, 1972Owens Illinois IncDevice for masking the closable area of a container during the coating of the container
US3688737 *Nov 4, 1969Sep 5, 1972Glass Container Mfg Inst IncVapor deposition apparatus including air mask
US3690289 *Jul 22, 1971Sep 12, 1972Charles A FrankVapor treatment hood
US3950199 *Mar 15, 1974Apr 13, 1976Owens-Illinois, Inc.Glass, molten polymer
US4014290 *Feb 27, 1974Mar 29, 1977Mitsui Shipbuilding And Engineering Co., Ltd.Coating apparatus for bottles
US4151064 *Dec 27, 1977Apr 24, 1979Coulter Stork U.S.A., Inc.Apparatus for sputtering cylinders
US4570568 *Dec 20, 1984Feb 18, 1986Caterpillar Tractor Co.Shroud for thermally sprayed workpiece
EP0209896A2 *Jul 23, 1986Jan 28, 1987Schmalbach-Lubeca AGMethod and apparatus for decorating metal or plastic containers
Classifications
U.S. Classification118/301, 118/503, 118/320
International ClassificationB05B13/02, B05B15/04
Cooperative ClassificationB05B15/04, B05B13/0228
European ClassificationB05B13/02B1, B05B15/04