US3751142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronizing device
Assignee: Individual
•
Filing: 1971-11-24
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Granted: 1973-08-07
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Expires: 1991-11-24
Abstract
Abstract This application discloses a device for synchronizing the movement of a recording tape with the movement of a section of motion picture film. The purpose of the synchronization is to correlate the sound on the recording tape with the pictures on the film. Two reeling members (one for the film and one for the recording tape) and a clutch to engage the two are provided. The reeling member for the film is positioned on a fixed support while the reeling member for the recording tape is positioned on a movable support. Each of the reeling members has one part of the clutch (a two part clutch) attached to it. When it is desired to synchronize the movement of the reeling members, the movable support is moved toward the stationary support to cause the two parts of the clutch to engage and couple the reeling members together.
Inventors
- 👤 G Roller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:58
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A device for synchronizing the movement of a sound tape and a picture tape comprising: a first reeling member adapted to have one of the tapes wound thereon a second reeling member adapted to have the other of the tapes would thereon and shiftable with respect to said first reeling member a first connecting member affixed to said first reeling member and immovable with respect thereto a second connecting member affixed to said second reeling member and immovable with respect thereto, so that when said second reeling member is shifted with respect to said first reeling member said second connecting member will selectively engage said first connecting member so that wHen said fist reeling member is rotated said second reeling member will rotate in synchronization with it.
Claim 2
Independent Claim
127 words
A device for synchronizing the movement of a sound tape and a picture tape comprising: a first reeling member adapted to have one of the tapes wound thereon a second reeling member adapted to have the other of the tapes would thereon and shiftable with respect to said first reeling member a first connecting member affixed to said first reeling member and immovable with respect thereto a second connecting member affixed to said second reeling member and immovable with respect thereto, so that when said second reeling member is shifted with respect to said first reeling member said second connecting member will selectively engage said first connecting member so that wHen said fist reeling member is rotated said second reeling member will rotate in synchronization with it.
Claim 3
Dependent Claim
47 words
The device of claim 1 including a first support member on which said first reeling member is mounted and a second support member on which said second reeling member is mounted, said second support member being slidably positioned in said first support member for shifting relative thereto.
Claim 4
Dependent Claim
49 words
The device in claim 2 wherein said first support member comprises a basemember and an upstanding member, said basemember having a channel therein and where said second support member comprises a basemember and an upstanding member said latter basemember being slidably positioned on the channel in said former basemember.
Claim 5
Dependent Claim
41 words
The device of claim 3 wherein said first connecting means comprises a shaft having an opening with grooves therein and wherein said second connecting means comprises a shaft having edges which correspond with said grooves and are adapted to mate therewith.
Claim 6
Independent Claim
156 words
A device for synchronizing the movement of a sound tape and a picture tape comprising: a first reeling member adapted to have one of the tapes wound thereon a second reeling member mounted for movement towards said first reeling member and adapted to have the other of the tapes wound thereon a first connecting member affixed to said first reeling member and positioned on the side of said first reeling member proximal said second reeling member a second connecting member affixed to said second reeling member and positioned on the side of said second reeling member proximal said first connecting member and adapted to selectively engage said first connecting member when said second reeling memer is moved toward said first reeling member, said second reeling member will rotate in synchronization with said first reeling member when said first and second connecting members are engaged to cause the sound tape and picture tape to move in synchronization.
Claim 7
Independent Claim
156 words
A device for synchronizing the movement of a sound tape and a picture tape comprising: a first reeling member adapted to have one of the tapes wound thereon a second reeling member mounted for movement towards said first reeling member and adapted to have the other of the tapes wound thereon a first connecting member affixed to said first reeling member and positioned on the side of said first reeling member proximal said second reeling member a second connecting member affixed to said second reeling member and positioned on the side of said second reeling member proximal said first connecting member and adapted to selectively engage said first connecting member when said second reeling memer is moved toward said first reeling member, said second reeling member will rotate in synchronization with said first reeling member when said first and second connecting members are engaged to cause the sound tape and picture tape to move in synchronization.
Claim 8
Dependent Claim
33 words
The device of claim 5 wherein said first connecting member is immovable with respect to said first reeling member and said second connecting member is immovable with respect to said second reeling member.
Claim 9
Dependent Claim
20 words
The device of claim 2 wherein said first and second connecting members are the only parts of said connecting members.
Claim 10
Dependent Claim
86 words
The device of claim 5 wherein said second reeling member is positioned substantially parallel to said first reeling member and wherein said means is positioned perpendicular to said second reeling member and wherein a viewing member is provided to view the output of the picture tape, said viewing member having a viewing screen which is positioned in a plane that is substantially parallel to said first and second reeling members so that the means is positioned proximal to an observer viewing the picture on said screen.
Claim 11
Dependent Claim
32 words
The device of claim 8 wherein the reeling members comprises sprocketed wheels over which the tapes pass and wherein pick-up means are provided to pick up a recording on the recording tape.
Claim 12
Dependent Claim
54 words
The device of claim 8 wherein the second reeling member is positioned so that as a tape passes over it both a part of the tape not yet on the reeling member and a part of the tape that just left the reeling member will be equally accessible to an operator operating the device.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |