US3830128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film cutter and viewer for dynamic tomography
Assignee: CFC PROD INC US
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Filing: 1971-11-26
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Granted: 1974-08-20
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Expires: 1991-11-26
Abstract
Abstract Apparatus is disclosed for cutting and viewing a set of radiograph films for use in the practice of dynamic tomography. Each radiograph film includes recorded data thereon indicative of the direction of track motion during exposure of the film and indicative of the angle of exposure at which the particular film was made. The cutting apparatus is provided with means for holding the film in given position and adjustably positionable cutter guides. With the cutter guides positioned in accordance with the data on a given film, cutters are effective to cut the film with parallel reference sides at a given altitude and with parallel angle sides at a given width. The cutter mechanism includes movable carriers for a parallelogram linkage having a lost motion connection therein. The viewer for the film set is of the film shift type and holds a set of films in superimposed relationship so that operation of a film shift mechanism enables the selection of a desired plane for viewing. The film shift viewer is provided with a shift mechanism including a cam element which is properly correlated in design with the parallelogram pivot linkage of the cutting apparatus so that proper alignment of the films can be achieved.
Inventors
- 👤 G Cochran
- 👤 L Crabtree
- 👤 D Crosby
- 👤 P Franken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:29
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/025; A; A61; A61B; A61B6/00; A61B6/02; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/808; Y10T83/825; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/858; Y10T83/869; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
124 words
Apparatus for making a set of parallelograms of constant altitude and width and of variable angle comprising; a first pair of ways extending parallel to each other, first and second carriers mounted on the first and second ways respectively and being adjustably positionable relative to each other in the direction of the ways, a pair of link members extending tRansversely of the ways, each link member being mounted on the first carrier and the second carrier by a pivotal connection, said pivotal connections on the first carrier being spaced apart the same distance as the pivotal connections on the second carrier, and a lost motion connection in each of said link members whereby the angles of said parallelograms may vary from one to another.
Claim 2
Dependent Claim
124 words
Apparatus for making a set of parallelograms of constant altitude and width and of variable angle comprising; a first pair of ways extending parallel to each other, first and second carriers mounted on the first and second ways respectively and being adjustably positionable relative to each other in the direction of the ways, a pair of link members extending tRansversely of the ways, each link member being mounted on the first carrier and the second carrier by a pivotal connection, said pivotal connections on the first carrier being spaced apart the same distance as the pivotal connections on the second carrier, and a lost motion connection in each of said link members whereby the angles of said parallelograms may vary from one to another.
Claim 3
Dependent Claim
29 words
The invention as defined in claim 1 wherein both of said carriers are movably mounted on said ways and are adapted for movement in the direction of said ways.
Claim 4
Dependent Claim
69 words
The invention as defined in claim 2 including a support means fixedly connected with said ways and adapted to receive a workpiece having first and second index marks thereon, first and second cursors mounted on the first and second carriers respectively for movement therewith, each of said cursors including a pointer adapted for alignment with one of said index marks for use in selecting the angle of a parallelogram.
Claim 5
Dependent Claim
34 words
The invention as defined in claim 3 and further including a first pair of cutting guides extending parallel to said ways and a second pair of cutter guides extending parallel to said link members.
Claim 6
Dependent Claim
203 words
A cutter for radiograph films for use in dynamic tomography and having first indicia thereon defining a line having a direction relative to the image which corresponds to the direction of motion of the source relative to the object between exposures in making successive radiograph films and having second indicia thereon indicative of the angle of exposure of the radiograph film, said cutter comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive a film with the first indicia thereon aligned with the fiduciary line first cutter guide means on said support member extending in a direction parallel to said fiduciary line for use in cutting said film with a first pair of parallel sides, a first carrier mounted on the support member, a second carrier mounted on the support member and being movable in a direction parallel to the fiduciary line, a second cutter guide means extending between the carriers and a pivotal connection between the second cutter guide means and each of the carriers whereby said second carrier may be positioned in accordance with said second indicia so that said cutter guide means extends in a direction related to the angle of exposure.
Claim 7
Dependent Claim
203 words
A cutter for radiograph films for use in dynamic tomography and having first indicia thereon defining a line having a direction relative to the image which corresponds to the direction of motion of the source relative to the object between exposures in making successive radiograph films and having second indicia thereon indicative of the angle of exposure of the radiograph film, said cutter comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive a film with the first indicia thereon aligned with the fiduciary line first cutter guide means on said support member extending in a direction parallel to said fiduciary line for use in cutting said film with a first pair of parallel sides, a first carrier mounted on the support member, a second carrier mounted on the support member and being movable in a direction parallel to the fiduciary line, a second cutter guide means extending between the carriers and a pivotal connection between the second cutter guide means and each of the carriers whereby said second carrier may be positioned in accordance with said second indicia so that said cutter guide means extends in a direction related to the angle of exposure.
Claim 8
Dependent Claim
30 words
The invention as defined in claim 5 wherein said first carrier is movably mounted on the support member and is movably mounted in a direction parallel to the fiduciary line.
Claim 9
Dependent Claim
46 words
The invention as defined in claim 6 and further including first and second cursors connected respectively with the first and second carriers for movement therewith, said cursors including respective indicators thereon and being disposed adjacent said support member for alignment with the indicia on said film.
Claim 10
Dependent Claim
223 words
A parallelogram cutter for radiograph films for use in dynamic tomography and having first indicia thereon defining a line having a direction relative to the image which corresponds to the direction of motion of the source relative to the object between exposures in making successive radiograph films and having second indicia thereon indicative of the angles of a parallelogram, said cutter comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive a film with the first indicia thereon aligned with the fiduciary line, first cutter guide means on said support member extending in a direction parallel to said fiduciary line for use in cutting said film with a first pair of parallel sides of said parallelogram, a first carrier mounted on the support member, second cutter guide means pivotally supported on said first carrier, a second carrier mounted on the support means and being movable in a direction parallel to the fiduciary line, the second cutter guide means being pivotally connected with the second carrier and movable therewith, a lost motion connecTion between said second cutter guide means and one of said carriers whereby said second carrier may be positioned in accordance with said second indicia so that said cutter guide means extends in the direction of the other pair of sides of said parallelogram.
Claim 11
Dependent Claim
223 words
A parallelogram cutter for radiograph films for use in dynamic tomography and having first indicia thereon defining a line having a direction relative to the image which corresponds to the direction of motion of the source relative to the object between exposures in making successive radiograph films and having second indicia thereon indicative of the angles of a parallelogram, said cutter comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive a film with the first indicia thereon aligned with the fiduciary line, first cutter guide means on said support member extending in a direction parallel to said fiduciary line for use in cutting said film with a first pair of parallel sides of said parallelogram, a first carrier mounted on the support member, second cutter guide means pivotally supported on said first carrier, a second carrier mounted on the support means and being movable in a direction parallel to the fiduciary line, the second cutter guide means being pivotally connected with the second carrier and movable therewith, a lost motion connecTion between said second cutter guide means and one of said carriers whereby said second carrier may be positioned in accordance with said second indicia so that said cutter guide means extends in the direction of the other pair of sides of said parallelogram.
Claim 12
Dependent Claim
45 words
The invention as defined in claim 8 wherein first and second cursors are connected repsectively with the first and second carriers for movement therewith, said cursors including respective indicators thereon and being disposed adjacent said support member for alignment with the indicia on said film.
Claim 13
Dependent Claim
168 words
Apparatus for cutting sheet material into parallelograms of constant altitude and predetermined variable angles said apparatus comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive said sheet material in a predetermined alignment with the fiduciary line, a first cutter guide on said support member and extending in a direction parallel to said fiduciary line, first cutting means operatively connected with the first cutter guide for cutting said sheet material with a first pair of parallel sides, a movable carrier mounted on said support member, means constraining the movement of the carrier to a direction parallel to said fiduciary line, a second cutter guide pivotally supported on said movable carrier and being angularly adjustable to extend at a selectable angle relative to the fiduciary line, and second cutting means operatively connected with the second cutter guide for cutting said sheet material with a second pair of parallel sides at a predetermined angle relative to the first pair of parallel sides.
Claim 14
Dependent Claim
168 words
Apparatus for cutting sheet material into parallelograms of constant altitude and predetermined variable angles said apparatus comprising a support member having means defining a fiduciary line thereon, said support member being adapted to receive said sheet material in a predetermined alignment with the fiduciary line, a first cutter guide on said support member and extending in a direction parallel to said fiduciary line, first cutting means operatively connected with the first cutter guide for cutting said sheet material with a first pair of parallel sides, a movable carrier mounted on said support member, means constraining the movement of the carrier to a direction parallel to said fiduciary line, a second cutter guide pivotally supported on said movable carrier and being angularly adjustable to extend at a selectable angle relative to the fiduciary line, and second cutting means operatively connected with the second cutter guide for cutting said sheet material with a second pair of parallel sides at a predetermined angle relative to the first pair of parallel sides.
Claim 15
Dependent Claim
285 words
Apparatus for cutting sheet material into parallelograms having constant altitude and width and having variable angles with data thereon in a predetermined orientation and position, said sheet material including first indicia defining the orientation of said data and including second indicia defining position of said data and the angle of a parallelogram, said apparatus comprising a support member including means defining a fiduciary line, said support member being adapted to receive a piece of sheet material with the first indicia thereon aligned with said fiduciary line, first cutting means having a pair of cutting paths extending parallel to said fiduciary line and being spaced a fixed distance apart for cutting said piece of sheet material with a first pair of parallel sides at a given altitude, a first pair of oppositely disposed parallel arms fixed in position parallel to said fiduciary line, a separate carrier mounted on each of the first pair of parallel arms for movement therealong, a second pair of parallel arms each of which has a pivotal connection with each of the carriers, said pivotal connections on each carrier being spaced a fixed distance apart, one of said pivotal connections on each of the second pair of arms being movable in the direction of the second pair of arms independently of the other pivotal connections thereon, whereby the second pair of arms may be adjusted in angular position and in translational position relative to said first pair of arms according to said second indicia, and a second cutting means having a second pair of cutting paths extending parallel to the second pair of arms for cutting said piece of sheet material with a second pair of parallel sides at a given width.
Claim 16
Dependent Claim
285 words
Apparatus for cutting sheet material into parallelograms having constant altitude and width and having variable angles with data thereon in a predetermined orientation and position, said sheet material including first indicia defining the orientation of said data and including second indicia defining position of said data and the angle of a parallelogram, said apparatus comprising a support member including means defining a fiduciary line, said support member being adapted to receive a piece of sheet material with the first indicia thereon aligned with said fiduciary line, first cutting means having a pair of cutting paths extending parallel to said fiduciary line and being spaced a fixed distance apart for cutting said piece of sheet material with a first pair of parallel sides at a given altitude, a first pair of oppositely disposed parallel arms fixed in position parallel to said fiduciary line, a separate carrier mounted on each of the first pair of parallel arms for movement therealong, a second pair of parallel arms each of which has a pivotal connection with each of the carriers, said pivotal connections on each carrier being spaced a fixed distance apart, one of said pivotal connections on each of the second pair of arms being movable in the direction of the second pair of arms independently of the other pivotal connections thereon, whereby the second pair of arms may be adjusted in angular position and in translational position relative to said first pair of arms according to said second indicia, and a second cutting means having a second pair of cutting paths extending parallel to the second pair of arms for cutting said piece of sheet material with a second pair of parallel sides at a given width.
Claim 17
Dependent Claim
90 words
The invention as defined in claim 11 wherein one of the second pair of cutting paths of the second cutting means is spaced inboard of the pivot axes of the pivotal connections on one of the second pair of arms by a distance equal to the pivot radius and the other of the second pair of cutting paths is spaced inboard of the pivotal axes of the pivotal connections on the other of the second pair of arms by a distance equal to the pivot radius of said pivotal connections.
Claim 18
Dependent Claim
45 words
The invention as defined in claim 12 further including first and second cursors connected repsectively with the first and second carriers for movement therewitH, said cursors including respective indicators thereon and being disposed adjacent said support member for alignment with the indicia on said film.
Claim 19
Dependent Claim
86 words
The invention as defined in claim 13 wherein said first cutting means has a support surface for said sheet material disposed in one plane and wherein said second cutting means has a support surface for said sheet material in another plane, a support platen for said sheet material having a support surface movable between said first and second planes, and means responsive to the completion of actuation of one of said cutting means for causing said support platen to move from one plane to the other.
Claim 20
Dependent Claim
68 words
The invention as defined in claim 14 wherein said support platen and said first and second support surfaces are provided with selectively operable vacuum holding means for said sheet material, and vacuum control means responsive to the completion of actuation of one of the cutting means for releasing the vacuum holding means on the one cutting means and actuating the vacuum holding means on the other cutting means.
Claim 21
Dependent Claim
90 words
The invention as defined in claim 15, including manual control means for actuating the vacuum holding means to the support platen, manual means for manipulating said carriers for adjusting the angle of the parallelogram to be cut, manual means operative to actuate the vacuum holding means to said first cutting means and means responsive to the completion of the actuation of the first cutting means for moving said support platen from the first plane to the second plane and for actuating said vacuum holding means of the second cutting means.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |