CA1075950A - Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee - Google Patents

Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee

Info

Publication number: CA1075950A
Authority: CA; Canada
Prior art keywords: film; pressure plate; film pressure; mounting; circular
Prior art date: 1974-12-26
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

CA314,434A

Other languages

English (en)

Inventor

Henry F. Price

John Jamieson

William O. Butts

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.)

Bell and Howell Co

Original Assignee

Bell and Howell Co

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.)

1974-12-26

Filing date

1978-10-26

Publication date

1980-04-22

1974-12-26 Priority claimed from US05/536,701 external-priority patent/US4037239A/en

1978-10-26 Application filed by Bell and Howell Co filed Critical Bell and Howell Co

1978-10-26 Priority to CA314,434A priority Critical patent/CA1075950A/fr

1980-04-22 Application granted granted Critical

1980-04-22 Publication of CA1075950A publication Critical patent/CA1075950A/fr

Status Expired legal-status Critical Current

Links

230000033001 locomotion Effects 0.000 claims abstract description 21
239000013013 elastic material Substances 0.000 claims description 3
238000004891 communication Methods 0.000 claims description 2
230000006872 improvement Effects 0.000 claims description 2
230000003287 optical effect Effects 0.000 abstract description 26
208000036366 Sensation of pressure Diseases 0.000 abstract description 2
230000000452 restraining effect Effects 0.000 abstract 1
230000032258 transport Effects 0.000 description 7
238000012545 processing Methods 0.000 description 4
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230000005291 magnetic effect Effects 0.000 description 3
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238000000034 method Methods 0.000 description 2
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HAAITRDZHUANGT-UHFFFAOYSA-N 1-[2-[(7-chloro-1-benzothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl]imidazole;nitric acid Chemical compound O[N+]([O-])=O.ClC1=CC(Cl)=CC=C1C(OCC=1C2=CC=CC(Cl)=C2SC=1)CN1C=NC=C1 HAAITRDZHUANGT-UHFFFAOYSA-N 0.000 description 1
239000000853 adhesive Substances 0.000 description 1
230000001070 adhesive effect Effects 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000013500 data storage Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000000806 elastomer Substances 0.000 description 1
239000013536 elastomeric material Substances 0.000 description 1
230000005294 ferromagnetic effect Effects 0.000 description 1
230000007257 malfunction Effects 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
230000002085 persistent effect Effects 0.000 description 1
230000008569 process Effects 0.000 description 1
230000004044 response Effects 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
239000000126 substance Substances 0.000 description 1

Landscapes

Projection-Type Copiers In General (AREA)

CA314,434A 1974-12-26 1978-10-26 Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee Expired CA1075950A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA314,434A CA1075950A (fr)	1974-12-26	1978-10-26	Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US05/536,701 US4037239A (en)	1974-12-26	1974-12-26	Microfilm camera and photographic film handling apparatus with an actuable film clamping device
CA238,858A CA1049311A (fr)	1974-12-26	1975-11-03	Camera pour microfilm a chariot mobile et plaque de pression a events
CA314,434A CA1075950A (fr)	1974-12-26	1978-10-26	Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee

Publications (1)

Publication Number	Publication Date
CA1075950A true CA1075950A (fr)	1980-04-22

Family

ID=27164179

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA314,434A Expired CA1075950A (fr)	1974-12-26	1978-10-26	Dispositif d'avance pour pellicule photographique, dote d'une plaque d'appui circulaire et perforee

Country Status (1)

Country	Link
CA (1)	CA1075950A (fr)

1978
- 1978-10-26 CA CA314,434A patent/CA1075950A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1997-04-22	MKEX	Expiry