GB389102A - Improvements in and relating to engraving - Google Patents

Improvements in and relating to engraving

Info

Publication number
GB389102A
GB389102A GB1681231A GB1681231A GB389102A GB 389102 A GB389102 A GB 389102A GB 1681231 A GB1681231 A GB 1681231A GB 1681231 A GB1681231 A GB 1681231A GB 389102 A GB389102 A GB 389102A
Authority
GB
United Kingdom
Prior art keywords
circuit
valve
original
valves
potential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1681231A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOHN WILLEY DALTON
Original Assignee
JOHN WILLEY DALTON
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JOHN WILLEY DALTON filed Critical JOHN WILLEY DALTON
Priority to GB1681231A priority Critical patent/GB389102A/en
Priority to US62342532 priority patent/US1933792A/en
Publication of GB389102A publication Critical patent/GB389102A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/06—Accessories, e.g. tool or work holders
    • B44B3/061—Tool heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/001—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings by copying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/001—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings by copying
    • B44B3/004—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings by copying using a tool controlled by a photoelectric scanning device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
    • Y10T409/300896—Milling with regulation of operation by templet, card, or other replaceable information supply with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y10T83/166—Removable element carries program

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Scissors And Nippers (AREA)

Abstract

389,102. Thermionic valve circuits. DALTON, J. W., 16, Abbott Avenue, Wimbledon, London. June 9, 1931, No. 16812. [Class 40 (v).] In a process and apparatus for producing engraved surfaces with the aid of a mechanical cutter, e.g. a drill, the depth of cut is regulated by particular coils 10 which are energized by variations in the amount of light reflected in accordance with the variations in tone from the original on to the photo-electric cell 48. An interrupter disc 51 renders this light intermittent and the original '30 and block 31 to be engraved are mounted on a common shaft driven by the motor 26. The varying current in the cell 48 is transmitted after suitable amplification to a rectifier 46 and thence to a resistance, from which tappings are taken as shown to the grids of the valves 35 .. 35d, which are preferably of the type known under the Registered Trade Mark " Thyratron," one or more of which are rendered conducting according to the amount of light reflected from the original 30, whereby is completed the circuit of one or more of the actuating coils 10 of the cutter A. A cut is thus made of which the depth varies in accordance with the depth of tone of the original. The circuit may be modified by the use of alternating current, and by using different valves. To stop the discharge through the valves which has been started by raising the grid potential, the anode potential is reduced either by means of the rotary contact maker 32 included in the plate circuit; by using an alternating current source instead of a direct current source, or by applying to the plate a steady potential and a superposed varying potential obtained from the output of another valve to the grid of which is connected an alternator and battery. Alternatively, the means for scanning the subject and controlling the current flow to the electromagnets operating the drill may be of the kind described in Specification 351,462. For the capacity effect, an electrode plate is held in suitable spaced relation with the engraved plate so as to secure between the two a condenser effect. This variable capacity is in the grid circuit of a valve inductively coupled with the circuit of an oscillator valve, and the former valve serves to rectify the oscillating current set up, which, after amplification, is applied as before to a resistance having leads connected to the grids of the valves for operating the cutter.
GB1681231A 1931-06-09 1931-06-09 Improvements in and relating to engraving Expired GB389102A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1681231A GB389102A (en) 1931-06-09 1931-06-09 Improvements in and relating to engraving
US62342532 US1933792A (en) 1931-06-09 1932-07-19 Engraving

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1681231A GB389102A (en) 1931-06-09 1931-06-09 Improvements in and relating to engraving

Publications (1)

Publication Number Publication Date
GB389102A true GB389102A (en) 1933-03-09

Family

ID=10084102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1681231A Expired GB389102A (en) 1931-06-09 1931-06-09 Improvements in and relating to engraving

Country Status (2)

Country Link
US (1) US1933792A (en)
GB (1) GB389102A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251814A2 (en) * 1986-07-04 1988-01-07 Engraving Developments Ltd Engraving machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688275A (en) * 1951-05-31 1954-09-07 Hammond Machinery Builders Inc Printing plate shaving machine
US2788255A (en) * 1953-12-08 1957-04-09 Fairchild Camera Instr Co Stylus indexing arrangement for engraving machines
US3012838A (en) * 1959-03-23 1961-12-12 Acf Ind Inc Event recorder
US3149901A (en) * 1960-11-17 1964-09-22 Bell Telephone Labor Inc Recorder
NO131870C (en) * 1970-10-12 1975-08-20 Kongsberg Vapenfab As
US4903578A (en) * 1988-07-08 1990-02-27 Allied-Signal Inc. Electropneumatic rotary actuator having proportional fluid valving

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251814A2 (en) * 1986-07-04 1988-01-07 Engraving Developments Ltd Engraving machine
EP0251814A3 (en) * 1986-07-04 1989-08-23 Engraving Developments Ltd Engraving machine

Also Published As

Publication number Publication date
US1933792A (en) 1933-11-07

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