GB909038A - Improvements relating to the counting of the number of markings on the surface of a member - Google Patents

Improvements relating to the counting of the number of markings on the surface of a member

Info

Publication number
GB909038A
GB909038A GB1353760A GB1353760A GB909038A GB 909038 A GB909038 A GB 909038A GB 1353760 A GB1353760 A GB 1353760A GB 1353760 A GB1353760 A GB 1353760A GB 909038 A GB909038 A GB 909038A
Authority
GB
United Kingdom
Prior art keywords
bottle
screen
holder
bacteria
counting
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
GB1353760A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1353760A priority Critical patent/GB909038A/en
Publication of GB909038A publication Critical patent/GB909038A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
    • C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Analytical Chemistry (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

909,038. Bacteria, counting. RUSSELL, A. A. W. April 5, 1961 [April 14, 1960], No. 13537/60. Class 81 (1). [Also in Group XX] Apparatus for use in counting the number of bacteria on the surface of a member comprises a holder for the member, a screen projection means for projecting an image of a portion of the surface on to the screen, and means for effecting relative rotary movement between said projecting means and holder about the axis of symmetry of said holder so that images of different parts of the surface move past datum mark(s) on the screen and the bacteria on the surface may therefore be counted. In the apparatus shown, a bottle 11, the internal surface of which has been coated with bacterial colonies in a culture medium by partially filling the bottle with said medium and rotating it by means of fourrollers, is placed in a holder 10 which is mounted on a screw-threaded support 12 and is illuminated by a lamp 36. The support 12 may be rotated in either direction by a variable speed electric motor 25 acting through gearing 18-24 and through a belt 16. The bottle 11 may thus be moved in a helical path so that each part of its surface in turn is situated at the focal point of a projection lens system 35, 36 and images of the surface of the bottle move across a screen 37. The screen has a datum line so that the bacterial colonies in the bottle may be counted as their images pass the line.
GB1353760A 1960-04-14 1960-04-14 Improvements relating to the counting of the number of markings on the surface of a member Expired GB909038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1353760A GB909038A (en) 1960-04-14 1960-04-14 Improvements relating to the counting of the number of markings on the surface of a member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1353760A GB909038A (en) 1960-04-14 1960-04-14 Improvements relating to the counting of the number of markings on the surface of a member

Publications (1)

Publication Number Publication Date
GB909038A true GB909038A (en) 1962-10-24

Family

ID=10024777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1353760A Expired GB909038A (en) 1960-04-14 1960-04-14 Improvements relating to the counting of the number of markings on the surface of a member

Country Status (1)

Country Link
GB (1) GB909038A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372683A (en) * 1979-09-04 1983-02-08 Beckman Instruments, Inc. Photometer with rotating sample container
US4653907A (en) * 1985-06-11 1987-03-31 Freundlich Lawrence F Blood culture bottle examining instrument
FR2631724A1 (en) * 1988-05-23 1989-11-24 Toyo Jozo Kk COLONY COUNTING APPARATUS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372683A (en) * 1979-09-04 1983-02-08 Beckman Instruments, Inc. Photometer with rotating sample container
US4653907A (en) * 1985-06-11 1987-03-31 Freundlich Lawrence F Blood culture bottle examining instrument
FR2631724A1 (en) * 1988-05-23 1989-11-24 Toyo Jozo Kk COLONY COUNTING APPARATUS

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