US3815980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for automatically recording a title or heading in movie cameras
Assignee: Braun GmbH
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Filing: 1973-03-27
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Granted: 1974-06-11
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Expires: 1993-03-27
Abstract
Abstract A movie camera having a projection arrangement including an objective having a reflecting arrangement, a projection lamp, a title or heading information carrier placed in the projection arrangement in such a manner that the information on it is projected through the reflecting arrangement into the path of the light passing through the objective to the film, an arrangement for causing the recording of the title or heading information on the film strip at the beginning of the operation of the camera including a switching disc biased between a rest position and an end position, a driving means provided on said switching disc, a film advancing mechanism, means for coupling the driving means with the film advancing mechanism, the switching member having a contact operating portion, a switching arm adapted to engage the contact portion, a switch coupled to the switch arm and effecting energization of a projection lamp when in contact with the contact portion, a decoupling means for decoupling the driving means of the film advancing mechanism when the movie camera is open for changing the film, the switch further comprising a contact for energizing the film advancing mechanism when the film receiving space of the camera is loaded and closed again.
Inventors
- 👤 J Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B17/245; G03B15/00; G03B15/08; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
229 words
A movie camera comprising a projection arrangement including an objective means having a reflecting arrangement, a projection means, a title or heading information carrier means placed in said projection arrangement in such a manner that the information of said information carrier is projected through said reflecting arrangement into the path of the light passing through said objective mEans on the film, an arrangement for causing the recording of said title or heading information on the film strip at the beginning of the operation of said camera comprising a switching member, means for biasing such switching member between a rest position and an end position, a driving means provided on said switching member, a film advancing mechanism, means for coupling said driving means with said film advancing mechanism, said switching member comprising a contact operating portion, a switch arm means adapted to engage said contact operating portion, a switching means coupled to said switch arm means and effecting energization of said projection means when in contact with said contact operating portion of said switch means, a decoupling means for the decoupling of the driving means of the film advancing mechanism from said switching member when the movie camera is open for changing the film, said switching means further comprising contact means for energizing the film advancing mechanism when the film receiving space of the camera is loaded and closed again.
Claim 2
Dependent Claim
229 words
A movie camera comprising a projection arrangement including an objective means having a reflecting arrangement, a projection means, a title or heading information carrier means placed in said projection arrangement in such a manner that the information of said information carrier is projected through said reflecting arrangement into the path of the light passing through said objective mEans on the film, an arrangement for causing the recording of said title or heading information on the film strip at the beginning of the operation of said camera comprising a switching member, means for biasing such switching member between a rest position and an end position, a driving means provided on said switching member, a film advancing mechanism, means for coupling said driving means with said film advancing mechanism, said switching member comprising a contact operating portion, a switch arm means adapted to engage said contact operating portion, a switching means coupled to said switch arm means and effecting energization of said projection means when in contact with said contact operating portion of said switch means, a decoupling means for the decoupling of the driving means of the film advancing mechanism from said switching member when the movie camera is open for changing the film, said switching means further comprising contact means for energizing the film advancing mechanism when the film receiving space of the camera is loaded and closed again.
Claim 3
Dependent Claim
29 words
The movie camera as claimed in claim 1, wherein said switching member comprises a disc means and said contact operating portion comprises an arcuate portion of said disc means.
Claim 4
Dependent Claim
62 words
The movie camera as claimed in claim 2, wherein said coupling means comprises a wheel means adapted to be coupled with the driving means on said disc means, said disc means having a portion radially recessed for providing a further decoupling means, said disc means having a toothed member thereon, having a radial recess similar to the recess of said disc means.
Claim 5
Dependent Claim
28 words
The movie camera as claimed in claim 3, wherein said wheel means is a toothed wheel means and said recessed portion of said disc means is without teeth.
Claim 6
Dependent Claim
92 words
The movie camera as claimed in claim 1, wherein said decoupling arrangement comprises a lever arrangement engaging at one end thereof said driving member and at the other end thereof the wall portion of said camera housing adapted to be open when a film cassette is loaded into the camera, said lever arrangement being constructed in a manner that when there is no film cassette in the space provided within the camera or when said loading wall portion is open, said driving means is out of engagement with the film advancing mechanism.
Claim 7
Dependent Claim
64 words
The movie camera as claimed in claim 1, wherein said decoupling arrangement comprises means for biasing said disc means axially when a film cassette is in the receiving space and said wall portion is closed, whereby when said space for the film cassette is empty and said receiving wall portion is open, said disc means is out of engagement with said film advancing mechanism.
Claim 8
Dependent Claim
64 words
The movie camera as claimed in claim 6, wherein said disc means comprises a projection, a counter projection provided in the path of said projection on said disc means and fixedly connected with the housing for engagement with said projection of said disc means at a predetermined position of said disc means, said predetermined position being the angular rest position of said disc means.
Claim 9
Dependent Claim
30 words
The movie camera as claimed in claim 1, wherein said switch means comprises a further contact pair for effecting energization of a lightmeter arrangement, controlling the shutter of the camera.
Claim 10
Dependent Claim
33 words
The movie camera as claimed in claim 1, wherein said switch means comprises a further contact pair for disconnecting a synchron pulse generator during the operation of said title or heading recording arrangement.
Claim 11
Dependent Claim
61 words
The movie camera as claimed in claim 1, wherein said switch means comprises a plurality of contact pairs, said contact pairs being arranged in said switch means in such a manner that the contact pair energizing said projection lamp is actuated earlier and disconnects said projection lamp at least simultaneously with the energizing of the film advancing mechanism for normal operation.
Claim 12
Dependent Claim
33 words
The movie camera as claimed in claim 8, wherein said contact means for energization of the lightmeter means is arrAnged for closing the shutter means simultaneously with the energization of said projection lamp.
Claim 13
Dependent Claim
19 words
The movie camera as claimed in claim 1, wherein said switch arm is provided with a rounded run-up surface.
Claim 14
Dependent Claim
16 words
A movie camera as claimed in claim 7, wherein said projection limits the switch operating path.
Claim 15
Dependent Claim
21 words
The movie camera as claimed in claim 1, wherein a further contact pair is provided for energizing the film advancing mechanism.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |