US3886566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented disc for photocomposing machines
Assignee: Individual
•
Filing: 1973-05-23
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Granted: 1975-05-27
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Expires: 1993-05-23
Abstract
Abstract A composite disc matrix comprised of a plurality of individually, independently changeable segments. Each glass segment is automatically centered and aligned by the use of a curved surface rigidly attached to the segment that can be removably securred to a matching curved surface rigidly mounted on the shaft or hub of the rotating matrix. ''''Pi'''' characters can be added to a rigid matrix by matching or aligning reference marks associated with the pi characters with corresponding reference marks on the matrix. Pi characters may be mechanically or optically positioned on the matrix.
Inventors
- 👤 Louis M Moyroud
- 👤 Robert Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:40
CPC Classifications
B; B41; B41B; B41B17/00; B41B17/18; B41B17/20; B41B17/24; B41B17/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
163 words
In a photographic type composing machine: a composite matrix disc mounted on a cylindrical hub, said composite matrix disc comprising a plurality of independently interchangeable segments, each of said segments having an opaque surface and an array of transparent characters thereon; a base provided with an arcuate surface having the same curvature as the outside of said hub, said segments being secured to said base in alignment with each other, whereby each character-bearing surface of each segment is automatically centered and positioned in a plane perpendicular to the axis of said hub by the engagement of the matching surfaces of said hub and said arcuate surface of said base; said hub having an annular radially outwardly extending shoulder formed thereon and the base of each of said segments having an edge portion extending generally perpendicularly to its arcuate surface for abutting engagement with said shoulder, whereby all of the segments in said disc are located in the same plane relative to said hub.
Claim 2
Dependent Claim
163 words
In a photographic type composing machine: a composite matrix disc mounted on a cylindrical hub, said composite matrix disc comprising a plurality of independently interchangeable segments, each of said segments having an opaque surface and an array of transparent characters thereon; a base provided with an arcuate surface having the same curvature as the outside of said hub, said segments being secured to said base in alignment with each other, whereby each character-bearing surface of each segment is automatically centered and positioned in a plane perpendicular to the axis of said hub by the engagement of the matching surfaces of said hub and said arcuate surface of said base; said hub having an annular radially outwardly extending shoulder formed thereon and the base of each of said segments having an edge portion extending generally perpendicularly to its arcuate surface for abutting engagement with said shoulder, whereby all of the segments in said disc are located in the same plane relative to said hub.
Claim 3
Dependent Claim
14 words
The composite matrix disc of claim 1 wherein each of said segments are pie-shaped.
Claim 4
Dependent Claim
39 words
The composite matrix disc as defined in claim 1 wherein said segments each comprise a matrix, an a metal plate having a plurality of holes formed therein secured to said matrix, and individual character chips mounted in said holes.
Claim 5
Dependent Claim
51 words
The composite matrix disc as defined in claim 3 wherein said matrix segments have transparent timing slits and boxes photographically produced thereon in precise spatial relation to each other, said holes in said plate having identical dimensions and positions as the boxes on the segment matrix and being in alignment therewith.
Claim 6
Independent Claim
130 words
A method of producing pi characters comprising the steps of: producing on a light sensitive matrix by photographic means transparent timing slits and transparent boxes in a precise spatial relationship, said boxes having an area slightly larger than the largest pi character, producing by photographic means an etched metal plate so that holes are etched through the plate in identical dimensions and positions as those of the boxes on said matrix, cementing said metal plate onto said matrix so that the etched holes are aligned with said boxes, producing by photographic means individual character chips on a support of substantially the same dimensions and outline as said boxes and holes, and inserting said chips into said holes in accordance with a desired arrangement, said chips fitting frictionally into said holes.
Claim 7
Independent Claim
130 words
A method of producing pi characters comprising the steps of: producing on a light sensitive matrix by photographic means transparent timing slits and transparent boxes in a precise spatial relationship, said boxes having an area slightly larger than the largest pi character, producing by photographic means an etched metal plate so that holes are etched through the plate in identical dimensions and positions as those of the boxes on said matrix, cementing said metal plate onto said matrix so that the etched holes are aligned with said boxes, producing by photographic means individual character chips on a support of substantially the same dimensions and outline as said boxes and holes, and inserting said chips into said holes in accordance with a desired arrangement, said chips fitting frictionally into said holes.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |