CH567737A5 - - Google Patents
Info
- Publication number
- CH567737A5 CH567737A5 CH579973A CH579973A CH567737A5 CH 567737 A5 CH567737 A5 CH 567737A5 CH 579973 A CH579973 A CH 579973A CH 579973 A CH579973 A CH 579973A CH 567737 A5 CH567737 A5 CH 567737A5
- Authority
- CH
- Switzerland
- Prior art keywords
- arm
- pin
- lamella
- lever
- armed
- Prior art date
Links
- 241000446313 Lamella Species 0.000 claims description 45
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 229920001875 Ebonite Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B1/00—Film strip handling
- G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B1/00—Film strip handling
- G03B1/18—Moving film strip by means which act on the film between the ends thereof
- G03B1/20—Acting means
- G03B1/32—Friction grippers or rollers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/43—Driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Replacement Of Web Rolls (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS286372A CS156336B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-27 | 1972-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH567737A5 true CH567737A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-10-15 |
Family
ID=5366962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH579973A CH567737A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-27 | 1973-04-24 |
Country Status (8)
-
1972
- 1972-04-27 CS CS286372A patent/CS156336B1/cs unknown
-
1973
- 1973-04-11 DD DD17010173A patent/DD104859A1/xx unknown
- 1973-04-12 DE DE19732318541 patent/DE2318541A1/de active Pending
- 1973-04-24 CH CH579973A patent/CH567737A5/de not_active IP Right Cessation
- 1973-04-26 GB GB1983173A patent/GB1393504A/en not_active Expired
- 1973-04-26 IT IT2343273A patent/IT984132B/it active
- 1973-04-27 FR FR7315478A patent/FR2182560A5/fr not_active Expired
- 1973-04-27 AT AT379773A patent/AT337000B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1393504A (en) | 1975-05-07 |
| FR2182560A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-12-07 |
| CS156336B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-24 |
| DD104859A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-03-20 |
| AT337000B (de) | 1977-06-10 |
| IT984132B (it) | 1974-11-20 |
| DE2318541A1 (de) | 1973-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |