Patent US3633805A successfully refreshed from Google Patents.
US3633805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for feeding different gauge films on industrial editing and synchronizing tables
Assignee: Individual
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Filing: 1969-12-02
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Granted: 1972-01-11
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Expires: 1989-12-02
Abstract
Abstract Device for feeding different gauge films on industrial editing and synchronizing tables, comprising a sprocket having two pairs of toothed crowns for drawing films of two different gauges, this sprocket being axially movable relative to a fixed body for causing a film, as drawn by one pair of crowns, or a film, as drawn by the other pair of crowns, to take a same distance relative to said fixed body, said sprocket automatically taking different speeds of rotation under the conditions where it is moved to different distances relative to said fixed body. The device also comprises a knob which can be rotated relative to the sprocket so as to make the latter idle on its rotational axis and, on continued rotation of the knob, so as to lock said sprocket relative to said fixed body.
Inventors
- 👤 Luigi Vaghi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:27
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/42; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
367 words
A device for feeding different gauge films on industrial editing and synchronizing tables, comprising a first body member attachable below the work surface of one of said tables at a hole in said surface, a second hollow body member carried by the first body member and connected thereto by means preventing one body member from rotating relative to the other body member and enabling a longitudinal movement of the second body member relative to the first body member between raised and lowered positions defined by fixed stops, against which the second body member abuts at either position, an elongated shaft extending within the bore of the second body member, from which said shaft is supported by bearings affording a free rotation and preventing an axial movement relative to the second body member, a portion of said shaft projecting from the Second body member above said work surface through the hole thereof, on this shaft portion a sprocket being mounted from which a pair of outer crowns project for a film drawing and at least one inner crown which is positioned between said outer crowns, the diameter of which being less than that of the outer crowns, for drawing a film of a lower gauge than that drawable by said pair of outer crowns, said fixed stops, against which the second body member abuts at said raised position and lowered position, respectively, causing a positioning for said pair of outer crowns and inner crowns, respectively, such that the lower edge of a film, drawn by the pair of outer crowns under the conditions where the second body member and said shaft and sprocket therewith are at a raised position, is at the same distance from the upper face of the work surface as the lower edge of a film drawn by the pair of inner crowns under the conditions where the second body member is at a lowered position, means being provided for imparting a different speed of rotation to said shaft under the conditions where said shaft along with the second body member is at a raised position and, respectively, under the conditions where said shaft along with the second body member is at a lowered position.
Claim 2
Independent Claim
367 words
A device for feeding different gauge films on industrial editing and synchronizing tables, comprising a first body member attachable below the work surface of one of said tables at a hole in said surface, a second hollow body member carried by the first body member and connected thereto by means preventing one body member from rotating relative to the other body member and enabling a longitudinal movement of the second body member relative to the first body member between raised and lowered positions defined by fixed stops, against which the second body member abuts at either position, an elongated shaft extending within the bore of the second body member, from which said shaft is supported by bearings affording a free rotation and preventing an axial movement relative to the second body member, a portion of said shaft projecting from the Second body member above said work surface through the hole thereof, on this shaft portion a sprocket being mounted from which a pair of outer crowns project for a film drawing and at least one inner crown which is positioned between said outer crowns, the diameter of which being less than that of the outer crowns, for drawing a film of a lower gauge than that drawable by said pair of outer crowns, said fixed stops, against which the second body member abuts at said raised position and lowered position, respectively, causing a positioning for said pair of outer crowns and inner crowns, respectively, such that the lower edge of a film, drawn by the pair of outer crowns under the conditions where the second body member and said shaft and sprocket therewith are at a raised position, is at the same distance from the upper face of the work surface as the lower edge of a film drawn by the pair of inner crowns under the conditions where the second body member is at a lowered position, means being provided for imparting a different speed of rotation to said shaft under the conditions where said shaft along with the second body member is at a raised position and, respectively, under the conditions where said shaft along with the second body member is at a lowered position.
Claim 3
Dependent Claim
85 words
A device according to claim 1, wherein said sprocket is carried on said shaft portion by bearings enabling a free rotation relative to the shaft, and the free upper end of said shaft has a thread which is engaged by the thread of a knob operable to rotate relative to the shaft to be moved to said sprocket to make it fast with said knob and shaft and, respectively, to be moved away from said sprocket to make it freely rotatable relative to said shaft.
Claim 4
Dependent Claim
144 words
A device according to claim 2, wherein said shaft is internally hollow and a rod is accommodated therein, said knob abutting the upper end of said rod, the lower end of which abuts a piston pin which is downward urged to said knob by a spring also accommodated within the bore of said shaft, said piston pin emerging from said shaft through two longitudinal slits in said shaft and by its ends emerging from the shaft carrying a bearing which carries a plate extending below the lower end of at least one cylinder accommodated within a seating in said second hollow body member, said cylinder extending to the lower end of said sprocket on which the cylinder abuts as urged by said plate, under the conditions where said knob is rotated on said shaft in the direction of being moved away from said sprocket.
Claim 5
Dependent Claim
154 words
A device according to claim 3, wherein said means for imparting a different speed of rotation to said shaft comprise first and second pulleys fast with first and second shafts, respectively, freely rotatable to each other and still freely rotatably carried by said first body member, said first shaft having a shaped head extending to a correspondingly shaped seating at the lower end of said shaft carried by said second body member, said second shaft having a toothing engageable with a corresponding toothing at the lower end of the shaft carried by the second body member, the positioning of said toothings, head and shaped seating being such that said toothings are brought to be interengaged and said head is out of said seating and, respectively, said toothings are clear of interengagement and said head is accommodated within said seating, under the conditions where said second body member is at raised and lowered positions, respectively.
Claim 6
Dependent Claim
31 words
A device according to claim 4, wherein resilient means are provided for holding said second body member at a steady lowered and raised positions, respectively, relative to said first body member.
Claim 7
Dependent Claim
48 words
A device according to claim 5, wherein a ring is placed between said knob and upper face of said sprocket, said ring being restrained against rotation on said shaft and freely movable thereon, a spring abutting said ring and acting thereon to urge it away from said sprocket.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |