GB579014A - Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powders - Google Patents
Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powdersInfo
- Publication number
- GB579014A GB579014A GB1004944A GB1004944A GB579014A GB 579014 A GB579014 A GB 579014A GB 1004944 A GB1004944 A GB 1004944A GB 1004944 A GB1004944 A GB 1004944A GB 579014 A GB579014 A GB 579014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- powder
- powders
- luminescent
- relating
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
579,014. Luminescent materials. CINEMA-TELEVISION, Ltd., and HEAD, R. B. May 24, 1944, No. 10049. [Class 39 (i)] [Also in Group II] Material consisting of particles with linear dimensions ranging from .005 to .05 mms. is separated into two portions, a finer and a coarser, by flowing it on to a clean surface so that the particles adhere thereto, vibrating the surface sufficiently to detach all particles larger than a predetermined size and collecting the finer portion by suitable means. The mechanism described consists of a disc rotating about a horizontal axis having a circular flange, extending horizontally from the periphery of the disc, in which the powder is placed. During rotationthe particles adhere to the flange, are carried up to a point above the bulk of the powder where the larger particles are removed by tapping, e.g. by a trembler bell or by sonic vibrations and fall back into the bulk of the powder. The fine particles still adhering are removed by a collecting device, e.g. brush and tray. The invention is described as relating to luminescent powders. The apparatus may take other forms such as an inclined flat plate or a continuous travelling belt, particles being distributed by a hopper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1004944A GB579014A (en) | 1944-05-24 | 1944-05-24 | Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1004944A GB579014A (en) | 1944-05-24 | 1944-05-24 | Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powders |
Publications (1)
Publication Number | Publication Date |
---|---|
GB579014A true GB579014A (en) | 1946-07-19 |
Family
ID=9960508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1004944A Expired GB579014A (en) | 1944-05-24 | 1944-05-24 | Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powders |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB579014A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4839033A (en) * | 1987-08-07 | 1989-06-13 | Ichinoseki National College Of Technology | Apparatus for separating spherical from non-spherical particles |
-
1944
- 1944-05-24 GB GB1004944A patent/GB579014A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4839033A (en) * | 1987-08-07 | 1989-06-13 | Ichinoseki National College Of Technology | Apparatus for separating spherical from non-spherical particles |
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