GB512234A - Improvements in and relating to copying cutting machines - Google Patents

Improvements in and relating to copying cutting machines

Info

Publication number
GB512234A
GB512234A GB10687/39A GB1068739A GB512234A GB 512234 A GB512234 A GB 512234A GB 10687/39 A GB10687/39 A GB 10687/39A GB 1068739 A GB1068739 A GB 1068739A GB 512234 A GB512234 A GB 512234A
Authority
GB
United Kingdom
Prior art keywords
coils
pairs
tube
armature
april
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
GB10687/39A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB512234A publication Critical patent/GB512234A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/24—Feelers; Feeler units
    • B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
    • B23Q35/30—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system
    • B23Q35/34—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system in which the feeler varies an electrical characteristic in a circuit, e.g. capacity, frequency

Abstract

512,234. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd. April 5, 1939, No. 10687. Convention date, April 8, 1938. [Class 40 (i)] Tracer mechanism for controlling the movements of a machine tool in accordance with the shape of a pattern comprises a feeler 2 mounted on a spindle 1 slidably mounted under the control of a spring 22 in a tube 3 which is universally mounted ir. a bearing 6 in a holder 8. As shown, the spindle 1 carries the armature 4 of a pair of coils 5, 5<1> connected in the depth control circuit and mounted on the tube 3 which also carries the armature 12 of pairs of coils 13, 14 arranged at right angles on the casing 10 and connected in the lateral control circuits, e.g., Wheatstone bridge circuits of the tool. Pairs of springs 18, 19 tend to centralize the tube 3. To avoid magnetic interference between the pairs of coils 13, 14, the coils are mounted with a ring of aluminium and each pair is provided with a separate magnetic yoke. Instead of the inductive control devices shown, mechanically operated contacts may be used.
GB10687/39A 1938-04-08 1939-04-05 Improvements in and relating to copying cutting machines Expired GB512234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE512234X 1938-04-08

Publications (1)

Publication Number Publication Date
GB512234A true GB512234A (en) 1939-08-30

Family

ID=6548070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10687/39A Expired GB512234A (en) 1938-04-08 1939-04-05 Improvements in and relating to copying cutting machines

Country Status (1)

Country Link
GB (1) GB512234A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433005A (en) * 1944-01-01 1947-12-23 Turchan Manuel Three-dimensional tracer
DE921845C (en) * 1951-08-03 1954-12-30 Hanns Fickert Automatic touch device with electromagnetically forced contact of the button on the model
US2796806A (en) * 1954-03-26 1957-06-25 Hanns Fickert Autoamtic tracer control
US2879695A (en) * 1957-04-23 1959-03-31 Pratt & Whitney Co Inc Tracer control for profiling machine tools
US2937577A (en) * 1954-12-28 1960-05-24 Cincinnati Milling Machine Co Tracing apparatus
US3122970A (en) * 1964-03-03 Certificate of correction
US3824893A (en) * 1971-07-07 1974-07-23 Dea Spa Tridimensional universal tracer, slidable on air bearings, for continuous, high-speed copying of profiles of models

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122970A (en) * 1964-03-03 Certificate of correction
US2433005A (en) * 1944-01-01 1947-12-23 Turchan Manuel Three-dimensional tracer
DE921845C (en) * 1951-08-03 1954-12-30 Hanns Fickert Automatic touch device with electromagnetically forced contact of the button on the model
US2796806A (en) * 1954-03-26 1957-06-25 Hanns Fickert Autoamtic tracer control
US2937577A (en) * 1954-12-28 1960-05-24 Cincinnati Milling Machine Co Tracing apparatus
US2879695A (en) * 1957-04-23 1959-03-31 Pratt & Whitney Co Inc Tracer control for profiling machine tools
US3824893A (en) * 1971-07-07 1974-07-23 Dea Spa Tridimensional universal tracer, slidable on air bearings, for continuous, high-speed copying of profiles of models

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