US3754826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatically correcting the position of an original in anautomatic copying machine
Assignee: Ricoh Co Ltd
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Filing: 1972-09-21
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Granted: 1973-08-28
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Expires: 1992-09-21
Abstract
Abstract In an automatic copying machine of the type having an original circulation repeat path for producing a number of duplicates, a device for automatically correcting the orientation of the original during circulation on the repeat path endless belt comprising the disposing of original sensing switches on opposite sides of the repeat path upstream of the duplicating station, which switches lie on a line normal to the direction of travel of the original so that when the original is correctly oriented on the belt, the switches are simultaneously actuated, but when the original is incorrectly oriented, one switch will be actuated before the other. The time lag between the actuation of the switches is used to actuate a correcting system which through a bearing nut mounted on a threaded portion of a DC motor output shaft moves one end of one of the belt mounting rollers whose other end is pivoted so as to change the length of one side of the belt with respect to the other side, thus reorienting the original before entry into the duplicating station.
Inventors
- 👤 Y Kobayashi
- 👤 T Yamagami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/10; G03B27/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
220 words
A device for correcting the orientation of an original to be duplicated during circulation in an automatic copying machine of the type having an original circulation repeat path for producing duplicates, said device comprising: a. an endless elastic belt means for continuously circulating the original around a repeat path and through a duplicating station; b. a plurality of rollers mounting said belt means for continuous circulation therearound, one of said rollers being pivotable at one end so as to permit changing the length of one side of said repeat path with respect to the other side; c. first and second switch means disposed on opposite sides of said repeat path upstream of said duplicating station in such manner that when said original is correctly oriented on said belt means while passing, said first and second switch means are actuated simultaneously thereby but when said original is incorrectly oriented an indicative time lag will occur between the actuation of each switch; d. power means connected in circuit with said first and second switch means and actuated during the occurrence of a time lag between the actuation of each switch; and e. correcting means operated by said power means for pivoting said one roller to change the length of one side of said repeat path during the occurrence of a time lag.
Claim 2
Independent Claim
220 words
A device for correcting the orientation of an original to be duplicated during circulation in an automatic copying machine of the type having an original circulation repeat path for producing duplicates, said device comprising: a. an endless elastic belt means for continuously circulating the original around a repeat path and through a duplicating station; b. a plurality of rollers mounting said belt means for continuous circulation therearound, one of said rollers being pivotable at one end so as to permit changing the length of one side of said repeat path with respect to the other side; c. first and second switch means disposed on opposite sides of said repeat path upstream of said duplicating station in such manner that when said original is correctly oriented on said belt means while passing, said first and second switch means are actuated simultaneously thereby but when said original is incorrectly oriented an indicative time lag will occur between the actuation of each switch; d. power means connected in circuit with said first and second switch means and actuated during the occurrence of a time lag between the actuation of each switch; and e. correcting means operated by said power means for pivoting said one roller to change the length of one side of said repeat path during the occurrence of a time lag.
Claim 3
Dependent Claim
57 words
A device as in claim 1 wherein said power means comprises an electric motor having an output shaft and said correcting means comprises a threaded member connected to said output shaft and a movable bearing nut mounted for movement on said threaded member and having the end of said one roller opposite the pivoted end journaled therein.
Claim 4
Dependent Claim
67 words
A device as in claim 1 wherein said power means comprises: f. a DC motor having one input connected to said first switch means and the other input connected to said second switch means; and g. a DC power source having one side connected to a first pole of each of said switches and the other side connected to a second pole of each of said switches.
Claim 5
Dependent Claim
60 words
A device as in claim 1 further comprising a third switch means disposed along said repeat path upstream of said duplicating station and actuated upon the passage of the original and having a first pole connected to one side of said DC source and a second pole connected to the second pole of each of said first and second switches.
Claim 6
Dependent Claim
24 words
A device as in claim 1 wherein said belt means comprises a plurality of elastic belt members arranged side-by-side to form said repeat path.
Claim 7
Dependent Claim
36 words
A device as in claim 1 wherein said first and said second switch means are disposed opposite each other across said repeat path on a line normal to the direction of movement of said original thereon.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |