US3771860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture film and sound film synchronizer
Assignee: SYNCRO SYSTEM CORP
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Filing: 1972-02-11
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Granted: 1973-11-13
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Expires: 1992-02-11
Abstract
Abstract An apparatus for securing simultaneous reproduction of separately recorded sound and pictures from recordings having audible and visual signals which indicate the start and finish of a take and in which both the picture recording at the starting signal and the sound recording are locked to join the elements in common synchronized movement. The housing, clutch, and the locking member of the apparatus are assembled in a manner to permit the clutch to be actuated from the exterior of the housing.
Inventors
- 👤 B Stone
- 👤 D Knife
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:17
CPC Classifications
G; G03; G03B; G03B31/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
143 words
In an audio visual device, a combination comprising: a. a rectangular base and housing member; b. a shaft member located in the middle of said housing member; c. A clutch member dividing said shaft into a longer front portion and a shorter rear portion; d. a locking member associated with the longer portion, said locking member being actuable from outside the casing; e. one or more sprocket wheels mounted on said front shaft portion, said sprocket wheels being adapted to mesh with the sprocket apertures of the magnetic sound tape; and, f. a single sprocket wheel mounted on the rear shaft portion and adapted to mesh with the sprocket apertures of the picture film; g. said clutch member being actuable from the exterior of the housing whereby the sound tape and the film may be shifted relative to each other for synchronizing purposes.
Claim 2
Dependent Claim
143 words
In an audio visual device, a combination comprising: a. a rectangular base and housing member; b. a shaft member located in the middle of said housing member; c. A clutch member dividing said shaft into a longer front portion and a shorter rear portion; d. a locking member associated with the longer portion, said locking member being actuable from outside the casing; e. one or more sprocket wheels mounted on said front shaft portion, said sprocket wheels being adapted to mesh with the sprocket apertures of the magnetic sound tape; and, f. a single sprocket wheel mounted on the rear shaft portion and adapted to mesh with the sprocket apertures of the picture film; g. said clutch member being actuable from the exterior of the housing whereby the sound tape and the film may be shifted relative to each other for synchronizing purposes.
Claim 3
Dependent Claim
85 words
A device as claimed in claim 1, with a second drive shaft parallel to, but at one side of said first shaft, said second shaft being belt-connected to the rear portion of said first shaft and extending through the rear wall of said casing, and a crank member being attached to said second shaft outside of said casing, whereby the second portion of said first shaft can be rotated relative to the first portion thereof and the film be displaced relative to the sound tape.
Claim 4
Dependent Claim
57 words
A device as claimed in claim 2, including arched plate members secured to said base member immediately adjacent said sprocket wheels, the plate member over the shorter rear portion of said first shaft carrying a lens member and the arches over the front longer portion of said first shaft carrying a lens, shutter and sound pickup heads.
Claim 5
Dependent Claim
46 words
The structure of claim 3, including curved roller arms adjacent each plate member, a roller mounted on each end of said arms and the combination comprising a guideway for ganging of the tapes, thus insuring the tape passage in close relationship to the sound pickup unit.
Claim 6
Dependent Claim
21 words
The structure of claim 4, including locking means for said roller arms, said locking means being actuable outside of said casing.
Claim 7
Dependent Claim
74 words
The structure of claim 5, including an optical housing member secured to the rear portion of said base member, said housing member carrying on its exterior surface a hinged lamp housing adjacent the film sprocket wheel,said housing containing appropriate lens and reflector means to project an image of the film on one side of said housing, and a ground glass screen mounted in said one side of said housing to view the projected image.
Claim 8
Dependent Claim
20 words
The structure of claim 6, wherein the film is threaded through the film sprocket passageway with its emulsion side down.
Claim 9
Dependent Claim
23 words
The structure of claim 7, wherein one or more sound tapes are threaded through the sound sprocket passageways with their oxide sides down.
Claim 10
Dependent Claim
20 words
The structure of claim 8, including a resettable frame counter and a resettable footage counter associated with the central shaft.
Claim 11
Dependent Claim
30 words
The structure of claim 9, including an extension of the second shaft through the rear wall of the casing, whereby it may be actuated by an external motor when desired.
Claim 12
Dependent Claim
32 words
An audio-visual device as claimed in claim 6, including a loud speaker mounted in the second wall of said housing whereby the tape recording may be heard while Viewing the film presentation.
Claim 13
Dependent Claim
103 words
An audio-visual device as claimed in claim 11, including a volume control unit for each pickup unit, said controls being mounted on the end of the base member, transistorized amplifier units for each pickup unit, a transistorized combining amplifier for the loud speaker, a jack for a head phone unit, a rectifier power unit and a master switch therefor, and a micro switch associated with said lamp housing to turn off the lamp when the housing is lifted, all of these electrical elements except the control knobs for the volume control being internally positioned in the base unit or the optical housing unit.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |