US3873194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo negative projector
Assignee: Individual
•
Filing: 1973-04-04
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Granted: 1975-03-25
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Expires: 1993-04-04
Abstract
Abstract A photo negative projector, comprising indexing mechanism for indexing spiral-shaped arrays of photo negatives, the indexing mechanism having a rotary member including a spiral-shaped array of indexing portions and a separate film carriage connected thereto having means for aligning a film plate having a corresponding spiral-shaped array of photo negatives, the indexing mechanism comprising a rotatable member provided with a plurality of projections and the projections adapted to engage with the indexing portions of the rotary member, and the rotary member, together with the film carriage coupled thereto, are movable in a rectilinear path as well as being rotatable about a rotary axis, and detent means is adapted to hold the rotary member in a fixed position relative to any one of the indexing portions of the spiral array of indexing portions on said rotary member.
Inventors
- 👤 Theodore F Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:35
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B23/00; G03B23/08; G03B23/10; G03B23/105
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
450 words
In a photonegative projector, the combination of: an indexing mechanism for spiral shaped arrays of photo negatives; said mechanism having a frame; a rotary member having a spiral shaped means including an array of indexing portiOns rotatably mounted on said frame to rotate about an axis of rotation; first means also mounting said rotary member to move freely in a rectilinear path generally normal to said axis of rotation; second meand adapted to rotate said rotary member successively from one of said indexing portions to an adjacent one of said indexing portions of said spiral array; stationary means of said second means engageable with said spiral shaped means; said stationary means stationarily mounted on said frame and adapted to cause said rotary member to move in said rectilinear direction normal to said axis of rotation when said rotary member is rotated about said axis of rotation; whereby each of said indexing portions on said rotary member may move into registry with a fixed position relative to said frame; a film carriage coupled to and movable with said rotary member and spaced therefrom; said film carriage having first alignment means; (adapted to coordinate) a spiral array of negatives; a spiral film plate on said film carriage said alignment means adapted and disposed to coordinate respective ones of said negatives relative to respective ones of said spiral array of indexing portions on rotary member; an illuminater means mounted on said frame and adapted to project light to a position on said film carriage corresponding with said fixed position to which said indexing portions of said rotary member progressively move; said rotary member is provided with first and second opposite sides disposed at right angles to said axis of rotation; said indexing portions comprising openings extending through said rotary member from said first side to said second side; said second means comprises a rotatable member having radial projection means disposed so as to progressively engage in said openings at one of the sides of said rotary member; said rotatable member rotatably mounted on said frame on a second axis substantially at right angles to said axis of rotation; said rotatable member restrained against movement relative to said frame in a direction longitudinally of said second axis; said stationary means having a spring loaded detent successively engageable within said openings at one of the sides of said rotary member for successively holding each of said indexing portions in said fixed position; said detent is disposed concurrently to engage the same one of said holes in which said projection means of said rotatable member engages; said detent and said (projections) projection means both being substantially in alignment with said rectilinear path of said first means.
Claim 2
Dependent Claim
450 words
In a photonegative projector, the combination of: an indexing mechanism for spiral shaped arrays of photo negatives; said mechanism having a frame; a rotary member having a spiral shaped means including an array of indexing portiOns rotatably mounted on said frame to rotate about an axis of rotation; first means also mounting said rotary member to move freely in a rectilinear path generally normal to said axis of rotation; second meand adapted to rotate said rotary member successively from one of said indexing portions to an adjacent one of said indexing portions of said spiral array; stationary means of said second means engageable with said spiral shaped means; said stationary means stationarily mounted on said frame and adapted to cause said rotary member to move in said rectilinear direction normal to said axis of rotation when said rotary member is rotated about said axis of rotation; whereby each of said indexing portions on said rotary member may move into registry with a fixed position relative to said frame; a film carriage coupled to and movable with said rotary member and spaced therefrom; said film carriage having first alignment means; (adapted to coordinate) a spiral array of negatives; a spiral film plate on said film carriage said alignment means adapted and disposed to coordinate respective ones of said negatives relative to respective ones of said spiral array of indexing portions on rotary member; an illuminater means mounted on said frame and adapted to project light to a position on said film carriage corresponding with said fixed position to which said indexing portions of said rotary member progressively move; said rotary member is provided with first and second opposite sides disposed at right angles to said axis of rotation; said indexing portions comprising openings extending through said rotary member from said first side to said second side; said second means comprises a rotatable member having radial projection means disposed so as to progressively engage in said openings at one of the sides of said rotary member; said rotatable member rotatably mounted on said frame on a second axis substantially at right angles to said axis of rotation; said rotatable member restrained against movement relative to said frame in a direction longitudinally of said second axis; said stationary means having a spring loaded detent successively engageable within said openings at one of the sides of said rotary member for successively holding each of said indexing portions in said fixed position; said detent is disposed concurrently to engage the same one of said holes in which said projection means of said rotatable member engages; said detent and said (projections) projection means both being substantially in alignment with said rectilinear path of said first means.
Claim 3
Dependent Claim
424 words
In a photonegative projector, the combination of: an indexing mechanism for spiral shaped arrays of photo negatives; said mechanism having a frame; a rotary member having a spiral shaped means including an array of indexing portions rotatably mounted on said frame to rotate about an axis of rotation; first means also mounting said rotary member to move freely in a rectilinear path generally normal to said axis of rotation; second means adapted to rotate said rotary member successively from one of said indexing portions to an adjacent one of said indexing portions of said spiral array; stationary means of said second means engageable with said spiral shaped means; said stationary means stationarily mounted on said frame and adapted to cause said rotary member to move in said rectilinear direction normal to said axis of rotation when said rotary member is rotated about said axis of rotation; whereby each of said indexing portions on said rotary member may move into register with a fixed position relative to said frame; a film carriage coupled to and movable with said rotary member and spaced therefrom; said film carriage having first alignment means; (adapted to coordinate) a spiral array of negatives, a spiral film plate on said film carriage; said alignment means adapted and disposed to coordinate respective ones of said negatives relative to respective ones of said spiral array of indexing portions on said rotary member; and an Illuminater means mounted on said frame and adapted to project light to a position on said film carriage corresponding with said fixed position to which said indexing portions of said rotary member progressively move; said rotary member is provided with first and second opposite sides disposed at right angles to said axis of rotation; said indexing portions comprising openings extending through said rotary member from said first side to said second side; said second means comprising a rotatable member having an annular row of radial projections disposed and spaced apart so as to progressively engage in said openings in one of the sides of said rotary member; motor driven mechanism adapted to actuate said rotatable member; said motor driven mechanism comprising a gear motor; a paddle wheel like member driven by said gear motor; said paddle wheel like member having a pleurality of substantially radial projections disposed successively to engage projections of said rotatable member; an a limit switch disposed to be successively engaged by said radial projections of said paddle wheel like member to control intermittent operation of said gear motor which operates said paddle wheel like member.
Claim 4
Dependent Claim
424 words
In a photonegative projector, the combination of: an indexing mechanism for spiral shaped arrays of photo negatives; said mechanism having a frame; a rotary member having a spiral shaped means including an array of indexing portions rotatably mounted on said frame to rotate about an axis of rotation; first means also mounting said rotary member to move freely in a rectilinear path generally normal to said axis of rotation; second means adapted to rotate said rotary member successively from one of said indexing portions to an adjacent one of said indexing portions of said spiral array; stationary means of said second means engageable with said spiral shaped means; said stationary means stationarily mounted on said frame and adapted to cause said rotary member to move in said rectilinear direction normal to said axis of rotation when said rotary member is rotated about said axis of rotation; whereby each of said indexing portions on said rotary member may move into register with a fixed position relative to said frame; a film carriage coupled to and movable with said rotary member and spaced therefrom; said film carriage having first alignment means; (adapted to coordinate) a spiral array of negatives, a spiral film plate on said film carriage; said alignment means adapted and disposed to coordinate respective ones of said negatives relative to respective ones of said spiral array of indexing portions on said rotary member; and an Illuminater means mounted on said frame and adapted to project light to a position on said film carriage corresponding with said fixed position to which said indexing portions of said rotary member progressively move; said rotary member is provided with first and second opposite sides disposed at right angles to said axis of rotation; said indexing portions comprising openings extending through said rotary member from said first side to said second side; said second means comprising a rotatable member having an annular row of radial projections disposed and spaced apart so as to progressively engage in said openings in one of the sides of said rotary member; motor driven mechanism adapted to actuate said rotatable member; said motor driven mechanism comprising a gear motor; a paddle wheel like member driven by said gear motor; said paddle wheel like member having a pleurality of substantially radial projections disposed successively to engage projections of said rotatable member; an a limit switch disposed to be successively engaged by said radial projections of said paddle wheel like member to control intermittent operation of said gear motor which operates said paddle wheel like member.
Claim 5
Dependent Claim
32 words
The invention as defined in claim 2, wherein: said paddle wheel like member is provided with a lesser number of radial projections than the number of said projections of said rotatable member.
Claim 6
Dependent Claim
88 words
The invention as defined in claim 2, wherein: said stationary means comprises a spring loaded detent successively engageable within said openings at one of the sides of said rotary member for successively holding each of said indexing portions successively in fixed position; said detent means being disposed concurrently to engage the same one of said holes in which one of said projections of said rotatable member is engaged; said detent and said one of said projections being substantially in alignment with said rectilinear path of said first means.
Claim 7
Dependent Claim
46 words
The invention as defined in claim 2, wherein: said stationary means comprises a spring loaded generally spherical rotary detent successively engageable within said openings at one of the sides of said rotary member for successively holding each of said indexing portions momentarily in said fixed position.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |