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 powders

Info

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
Application number
GB1004944A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cinema Television Ltd
Original Assignee
Cinema Television Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cinema Television Ltd filed Critical Cinema Television Ltd
Priority to GB1004944A priority Critical patent/GB579014A/en
Publication of GB579014A publication Critical patent/GB579014A/en
Expired legal-status Critical Current

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.
GB1004944A 1944-05-24 1944-05-24 Improvements in or relating to luminescent powders and methods of manufacturing and/or treating such powders Expired GB579014A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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