US3871508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tabular device for an office machine
Assignee: FACIT HALDA AB
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Filing: 1973-10-01
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Granted: 1975-03-18
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Expires: 1993-10-01
Abstract
Abstract A tabulator mechanism for an office machine, such as a typewriter, in which the tabulator rack is mass fabricated by a simple manufacturing process, and the tabulating stops are of an inexpensive construction. The stops can be easily mounted or removed from the tabulator rack. Furthermore, the tabulator mechanism construction is not only inexpensive but effectively achieves the desired function.
Inventors
- 👤 Leif Gunnar Petersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:36
CPC Classifications
B; B41; B41J; B41J21/00; B41J21/04; B41J21/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
176 words
A tabulator mechanism for an office machine having stop members comprising a tabulator rack provided with a plurality of tabulating stops co-acting with said stop members, said tabulator rack having three spaced structural elements, each being provided with a set of spaced holes extending in separate spaced planes parallel to the longitudinal axis of said tabulator rack, the spacing between each adjacent hole in each set corresponding to one step of travel of the machine, each of the holes in said middle set being offset relative to the corresponding holes in both the interior and exterior structural elements, said tabulating stops being yieldable pins and each being inserted through one hole in each of the three corresponding rows of holes so that the tabulating stop will be under tension in the direction of the longitudinal axis of said tabulator rack, each hole of the exterior set of spaced holes being elongated and arcuate whereby an end of each of the tabulating stop assumes a stable position in a selected end of said elongated and arcuate hole.
Claim 2
Dependent Claim
176 words
A tabulator mechanism for an office machine having stop members comprising a tabulator rack provided with a plurality of tabulating stops co-acting with said stop members, said tabulator rack having three spaced structural elements, each being provided with a set of spaced holes extending in separate spaced planes parallel to the longitudinal axis of said tabulator rack, the spacing between each adjacent hole in each set corresponding to one step of travel of the machine, each of the holes in said middle set being offset relative to the corresponding holes in both the interior and exterior structural elements, said tabulating stops being yieldable pins and each being inserted through one hole in each of the three corresponding rows of holes so that the tabulating stop will be under tension in the direction of the longitudinal axis of said tabulator rack, each hole of the exterior set of spaced holes being elongated and arcuate whereby an end of each of the tabulating stop assumes a stable position in a selected end of said elongated and arcuate hole.
Claim 3
Dependent Claim
24 words
The combination as set forth in claim 1 wherein said spaced structural elements are upstanding parts, each having a respective set of spaced holes.
Claim 4
Dependent Claim
26 words
The combination as set forth in claim 2 wherein said tabulator rack is constituted of a single piece bent to form said three, spaced upstanding parts.
Claim 5
Dependent Claim
49 words
The combination as set forth in claim 1 further comprising means which selectively move said tabulating stop into or out of an inoperative position in one end of one if said arcuate holes and out of or into an operative position in the other end of said arcuate hole.
Claim 6
Dependent Claim
44 words
The combination as set forth in claim 4 wherein said means includes a curved finger, a lever operatively connected to said curved finger whereby when said lever is depressed said finger engages a selected tabulating stop to move the latter to its operative position.
Claim 7
Dependent Claim
49 words
The combination as set forth in claim 4 further comprising a clearing member to return said tabulating stops to the inoperative position, said member being provided with a surface to engage one or more of said tabulating stops sucsessively when said tabulator rack is moved past said clearing member.
Claim 8
Dependent Claim
46 words
The combination as set forth in claim 6 wherein said surface of the clearing member constitutes inclined edge portions permitting the clearing member to return said tabulating stops to the inoperative position when the tabulator rack is moved in one direction or in the opposite direction.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |