GB448986A - Improvements in or relating to the coating of hollow bodies - Google Patents
Improvements in or relating to the coating of hollow bodiesInfo
- Publication number
- GB448986A GB448986A GB31761/35A GB3176135A GB448986A GB 448986 A GB448986 A GB 448986A GB 31761/35 A GB31761/35 A GB 31761/35A GB 3176135 A GB3176135 A GB 3176135A GB 448986 A GB448986 A GB 448986A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- coating
- pict
- iii
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cleaning In General (AREA)
Abstract
A machine for coating a portion of the interior surface of a hollow body comprises means for depositing a coating material on a portion of the inner surface of said hollow body and means, operating alternately with said depositing means, for removing excess coating along an edge of said coated portion. The machine illustrated, for use in coating the interior of electric lamp bulbs, comprises a rotary conveyer 10, carrying bulb holders 12, which is moved intermittently and passes through an oven 14. A bulb 16 is placed <PICT:0448986/III/1> <PICT:0448986/III/2> <PICT:0448986/III/3> <PICT:0448986/III/4> <PICT:0448986/III/5> p in a holder at A and moves first through the oven where it is heated to about 350 DEG C. At B, a spray gun 17 enters the bulb and sprays a coating material on to the bowl portion thereof. At D, compressed air is directed into the bulb to remove any loose particles of coating material, and at E and E<1>, wipers 20, 20<1> move into the bulb and are rotated at high speed to remove irregularities along the margin of the coating, giving a sharply defined border. The bulb is removed at F. At B, the bulb is lifted from the holder 12 and is gripped between rotatable and adjustable holders 18<1> and 25, the latter being driven so as to rotate the bulb, and the spray gun being moved into position with its nozzle 40 within the bulb. The gun is mounted, for movement into and out of the bulb, on a reciprocated carriage 55, and, when in operative position, is oscillated, through a predetermined arc, about the curved surface 54 by the sliding movement of a plate 44. A member 58 contacts with a valve-controlling lever 59 to cause the coating material to be discharged only while the nozzle is in its operative position, and when the nozzle is withdrawn the bulb is freed and again rests upon the holder 12. Each wiper consists of flexible radial strips 65, e.g. of chamois leather, carried by a rapidly rotatable shaft 66, and these shafts are moved into and out of a bulb by arms 110, 111, operated by a rack 102 reciprocated by a driven cam 94, a rocker arm 96 and a bellcrank lever 99. The bulb holder 12 comprises adjustable V-shaped supports 109<1> and 110<1>, and, during wiping, the bulb may be held down upon these supports by a spring-pressed finger 118 on a rocker arm 119. When the rack 102 is moved forward to withdrawn the wiper members from the bulb, the roller 122 enters a notch 123 in the arm 119, thus allowing the finger 118 to lift and release the bulb. Specification 302,170, [Class 95], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US448986XA | 1934-11-16 | 1934-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB448986A true GB448986A (en) | 1936-06-18 |
Family
ID=21934924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31761/35A Expired GB448986A (en) | 1934-11-16 | 1935-11-16 | Improvements in or relating to the coating of hollow bodies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB448986A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2155365A (en) * | 1984-03-02 | 1985-09-25 | Honda Motor Co Ltd | Spray coating |
-
1935
- 1935-11-16 GB GB31761/35A patent/GB448986A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2155365A (en) * | 1984-03-02 | 1985-09-25 | Honda Motor Co Ltd | Spray coating |
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