US3909947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for enlarging patterns
Assignee: TEXOGRAPHY-VERTRIEB VOLKMAR H VOTH KG
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Filing: 1973-04-20
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Granted: 1975-10-07
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Expires: 1993-04-20
Abstract
Abstract Method and apparatus for varying the size of patterns is provided in which one or more points on a basic pattern is measured with respect to a selected coordinate system. One or more incremental values are assigned to each such point which incremental value is proportional to the distance between said point and its corresponding point on another size pattern in relation to the coordinate system. The basic pattern is then traced and the incremental value continuously and automatically calculated and stored or applied to another tracing system for generating a different size pattern in proportion to said incremental values.
Inventors
- 👤 Volkmar H Voth
- 👤 Heimo Plumpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:17
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/4202; G05B19/4205; A; A41; A41H; A41H3/00; A41H3/007; A41H43/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
250 words
A process for varying the sizes of patterns, starting with a model in a basic size, on which a plurality of principal points are marked and a plurality of incremental values along a selected coordinate system and are assigned to each principal point, and wherein each incremental value assigned to a principal point indicates the distance of the shift by which the said principal point must be shifted in a selected direction during the transfer from the basic to the final size, comprising the steps of a. tracing the model with a scanner, b. generating signals which are proportionate to the instantaneous position of the scanner with respect to each axis of the selected coordinate system, c. generating at least one distance signal, said distance signal being a function of the instantaneous distance of the scanner from the last passed principal point along at least one coordinate axis, d. generating control signals which are proportionate to the instantaneous value of the said distance signal and proportionate to the difference of the incremental values along each axis of the said coordinate systems between two adjacent principal points, e. controlling a follow-on point means which draws or cuts the varied size pattern, f. the step of controlling the follow-on point means comprising controlling the follow-on point means along a duplicating path which corresponds to a movement proportionate with the scanner and simultaneously controlling instantaneous deviations of the follow-on point means from the duplication path by and proportional to the said control signals.
Claim 2
Dependent Claim
250 words
A process for varying the sizes of patterns, starting with a model in a basic size, on which a plurality of principal points are marked and a plurality of incremental values along a selected coordinate system and are assigned to each principal point, and wherein each incremental value assigned to a principal point indicates the distance of the shift by which the said principal point must be shifted in a selected direction during the transfer from the basic to the final size, comprising the steps of a. tracing the model with a scanner, b. generating signals which are proportionate to the instantaneous position of the scanner with respect to each axis of the selected coordinate system, c. generating at least one distance signal, said distance signal being a function of the instantaneous distance of the scanner from the last passed principal point along at least one coordinate axis, d. generating control signals which are proportionate to the instantaneous value of the said distance signal and proportionate to the difference of the incremental values along each axis of the said coordinate systems between two adjacent principal points, e. controlling a follow-on point means which draws or cuts the varied size pattern, f. the step of controlling the follow-on point means comprising controlling the follow-on point means along a duplicating path which corresponds to a movement proportionate with the scanner and simultaneously controlling instantaneous deviations of the follow-on point means from the duplication path by and proportional to the said control signals.
Claim 3
Dependent Claim
28 words
The process according to claim 1, in which the incremental values assigned to each principal point are placed in a computer as the scanner passes said principal point.
Claim 4
Dependent Claim
47 words
A process according to claim 1, wherein said coordinate axes are x,y axes and the distance signals are superimposed on the x and y-scanning signals, respectively, to form x and y position control signals, and that the follow-on point is controlled exclusively by the position control signals.
Claim 5
Dependent Claim
21 words
A process according to claim 1, further comprising the step of storing the increment control signals and/or the position control signals.
Claim 6
Dependent Claim
239 words
Apparatus for grading patterns in which a pattern model in a basic size has a plurality of principal points assigned thereto, and a plurality of selected incremental values along a selected coordinate system are assigned to each principal point, each incremental value assigned to a principal point indicates the distance by which the said principal point must be shifted in a selected direction during the transfer from the basic to the final size comprising: a. a scanner and an input table, said scanner being movable over an input table in two coordinate directions, x and y, b. means for generating x and y-scanning signals proportionate to the instantaneous relative shift of the scanner, c. means for generating a distance signal proportionate to the instantaneous distance of the scanner from the last passed and/or the next-following principal point, d. a keyboard for manual input of the said incremental values assigned to a principal point, e. means for generating increment control signals for the x and y-direction which are proportionate to the instantaneous distance signal and to the difference between the incremental values of adjacent principal points, f. a follow-on point movable over a reproduction table in x and y-direction, with means for drawing and/or cutting out the varied-size pattern from a material placed on the reproduction table, and g. means for moving the follow-on point in the x and y-direction proportionate to and in response to the increment control signals.
Claim 7
Dependent Claim
239 words
Apparatus for grading patterns in which a pattern model in a basic size has a plurality of principal points assigned thereto, and a plurality of selected incremental values along a selected coordinate system are assigned to each principal point, each incremental value assigned to a principal point indicates the distance by which the said principal point must be shifted in a selected direction during the transfer from the basic to the final size comprising: a. a scanner and an input table, said scanner being movable over an input table in two coordinate directions, x and y, b. means for generating x and y-scanning signals proportionate to the instantaneous relative shift of the scanner, c. means for generating a distance signal proportionate to the instantaneous distance of the scanner from the last passed and/or the next-following principal point, d. a keyboard for manual input of the said incremental values assigned to a principal point, e. means for generating increment control signals for the x and y-direction which are proportionate to the instantaneous distance signal and to the difference between the incremental values of adjacent principal points, f. a follow-on point movable over a reproduction table in x and y-direction, with means for drawing and/or cutting out the varied-size pattern from a material placed on the reproduction table, and g. means for moving the follow-on point in the x and y-direction proportionate to and in response to the increment control signals.
Claim 8
Dependent Claim
35 words
A device according to claim 5, further comprising a carrier for the follow-on point, said carrier being connected to the scanner by a mechanical linkage for simultaneous proportionate movements of the scanner and follow-on point,
Claim 9
Dependent Claim
30 words
A device according to claim 5, wherein said scanner is borne by a carrier movable in x and y-direction over the input table, said keyboard being mounted on the carrier.
Claim 10
Dependent Claim
53 words
A device according to claim 5, wherein the devices to generate the x and y-scanning signals are digital position emitters, that digitally operating computers, sliding registers and memories are provided to generate the distance signal and the increment control signals, and that the setting mechanisms for the follow-on point consist of digital servomotors.
Claim 11
Dependent Claim
45 words
A device according to claim 8 further comprising a keyboard on said reproduction table, said keyboard being connected to said computer, by means of which control orders are conveyed to the computer to recall the stored signals from which are generated the increment control signals.
Claim 12
Dependent Claim
22 words
A device according to claim 5, wherein the input table is controllably connected to several reproduction tables with independently controllable follow-up points.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |