US3694570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic engraving machine
Assignee: Individual
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Filing: 1970-07-22
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Granted: 1972-09-26
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Expires: 1990-07-22
Abstract
Abstract An automatic engraving machine, in which the device, converting the photoelectric current fed from a photo-unit moved along a rotary shaft with an original into electric signals applied to the drive of a tool engraving the rotating printing shaft while moving therealong comprises two channels. The first channel includes a modulator fed with the photoelectric current corresponding to the original and an electronic switch converting the signals fed from the modulator and acting on the drive of the tool. The second channel includes an electronic relay adjusted for a predetermined level of the photoelectric current fed from the photo-unit and electrically connected to the electronic switch of the first channel and through a driven multivibrator with the drive of the tool so that it operates during each intersection of the original boundary by the photo-unit, switching off the first channel and simultaneously triggering the driven multivibrator generating the electric signals corresponding to the boundary of the original.
Inventors
- 👤 Evgeny Pavlovich Kotov
- 👤 Viktor Vladimirovich Legostov
- 👤 Evgeny Alexeevich Stepanov
- 👤 Alexandr Mikhailovic Chuchalov
- 👤 Nikolai Kuzmich Maiorov
- 👤 Gennady Pavlovich Merezhko
- 👤 Anatoly Semenovich Komarov
- 👤 Nikolai Georgievich Sosnitsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:01
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/02; B41C1/04; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T409/303528; Y10T409/303584
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
395 words
An automatic engraving machine comprising, in combination; a frame; a printing shaft rotatably mounted on said frame; a tool mounted on said frame for reciprocal motion along said printing shaft; a drive means for said tool; a shaft supporting an original rotatably mounted on said frame; a photo-unit mounted on said frame and adapted to move along said original-supporting shaft; an optical system for said photo-unit for passing luminous flux reflected from said original upon movement of said photounit along said original-supporting shaft; a diaphragm for said photo-unit positioned behind said optical system in the light path of the luminous flux reflected from said original; a photomultiplier for said photo-unit positioned behind said diaphragm in the light path of said luminous flux for sensing said luminous flux and converting the latter into photo-electric current; means mounted on said frame and being electrically connected with said photo-unit for converting the photo-electric current emitting from said photo-multiplier into electric signals, said means comprising two channels; a first of said channels including a modulator connected to said photo-multiplier and receiving the photo-electric current from said photo-multiplier corresponding to said original; an electronic switch for said first channel being connected to said modulator and to said drive means for said tool for converting the signals emanating from said modulator into signals aCtuating said drive means the second of said channels including an electronic relay connected to said photo-multiplier and being adjusted for a preset level of the photo-electric current emitted from said photo-multiplier, said electronic relay being electrically connected with said electronic switch and being operative at every change of the photo-electric current corresponding to an intersection by said photo-multiplier of a boundary line on the original, and so as to act upon said electronic switch for preparing the latter to the transformation of signals fed from said modulator; the second of said channels including a driven multivibrator connected to said electronic relay, to said switch, and to said driving means for the tool, and being operative at each switch-over of said electronic relay so as to act upon said electronic switch by interruption of the signals fed from said electronic switch to said driving means, and simultaneously being adapted to act upon said driving means for the tool whereby said tool engraves an element of a contour line on said printing shaft during rotation of said last-mentioned shaft.
Claim 2
Dependent Claim
395 words
An automatic engraving machine comprising, in combination; a frame; a printing shaft rotatably mounted on said frame; a tool mounted on said frame for reciprocal motion along said printing shaft; a drive means for said tool; a shaft supporting an original rotatably mounted on said frame; a photo-unit mounted on said frame and adapted to move along said original-supporting shaft; an optical system for said photo-unit for passing luminous flux reflected from said original upon movement of said photounit along said original-supporting shaft; a diaphragm for said photo-unit positioned behind said optical system in the light path of the luminous flux reflected from said original; a photomultiplier for said photo-unit positioned behind said diaphragm in the light path of said luminous flux for sensing said luminous flux and converting the latter into photo-electric current; means mounted on said frame and being electrically connected with said photo-unit for converting the photo-electric current emitting from said photo-multiplier into electric signals, said means comprising two channels; a first of said channels including a modulator connected to said photo-multiplier and receiving the photo-electric current from said photo-multiplier corresponding to said original; an electronic switch for said first channel being connected to said modulator and to said drive means for said tool for converting the signals emanating from said modulator into signals aCtuating said drive means the second of said channels including an electronic relay connected to said photo-multiplier and being adjusted for a preset level of the photo-electric current emitted from said photo-multiplier, said electronic relay being electrically connected with said electronic switch and being operative at every change of the photo-electric current corresponding to an intersection by said photo-multiplier of a boundary line on the original, and so as to act upon said electronic switch for preparing the latter to the transformation of signals fed from said modulator; the second of said channels including a driven multivibrator connected to said electronic relay, to said switch, and to said driving means for the tool, and being operative at each switch-over of said electronic relay so as to act upon said electronic switch by interruption of the signals fed from said electronic switch to said driving means, and simultaneously being adapted to act upon said driving means for the tool whereby said tool engraves an element of a contour line on said printing shaft during rotation of said last-mentioned shaft.
Claim 3
Dependent Claim
100 words
An automatic engraving machine according to claim 1, wherein said photo-unit diaphragm includes at least two apertures of approximately equal cross-section located along the axis of said original-supporting shaft, said aperture, during the intersection of a boundary of said original by said photo-unit upon movement along said original shaft, being successively overlapped by said original, said electronic relay being adjusted for a level of said photo-electric current corresponding to the luminous flux passing through one of said diaphragm apertures, so as to ensure formation of a contour line in a direction extending perpendicular to the generatrix of said printing shaft.
Claim 4
Dependent Claim
52 words
An automatic engraving machine according to claim 1, wherein the first of said channels is provided with a sensor, said sensor being electrically connected with said electronic switch and being adapted to act upon the latter by closing and opening said switch at a preset frequency after operation of said electronic relay.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |