GB620004A - Improvements in and relating to vibratory tools - Google Patents

Improvements in and relating to vibratory tools

Info

Publication number
GB620004A
GB620004A GB2547A GB2547A GB620004A GB 620004 A GB620004 A GB 620004A GB 2547 A GB2547 A GB 2547A GB 2547 A GB2547 A GB 2547A GB 620004 A GB620004 A GB 620004A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
electric
stylus
steel
device
crystals
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
GB2547A
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.)
GEN ELECTRIC CO Ltd
WALTER CECIL CROPPER
General Electric Co Ltd
Original Assignee
GEN ELECTRIC CO Ltd
WALTER CECIL CROPPER
General Electric 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

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
    • B44B3/005—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 characterised by the power drive

Abstract

620,004. Electric pens. GENERAL ELECTRIC CO., Ltd., CROPPER, W. C., and WELLS, G. M. Jan. 1, 1947, No. 25. [Class 146 (iii)] [Also in Groups XXIII and XXXIX] A vibratory engraving tool comprises a piezo electric device adapted for connection to a source of electric oscillations for setting it into vibration at ultra sonic frequency 'and a stylus. As shown, thin strips 1 of piezo electric crystals, e.g. quartz, are separated by electrodes 2 of thin metal foil and a strip of steel 5 wider than the crystals divides the pile into two parts. A block of steel 8 carrying the stylus 10 is fixed at one end and a counter weight 9 of steel at the other end. A cover 6 of insulating material carrying electrodes 4 surrounds the device and acts as a handle. A thermionic valve oscillator may be used to excite the device and produce ultra sonic vibrations in the stylus.
GB2547A 1947-01-01 1947-01-01 Improvements in and relating to vibratory tools Expired GB620004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2547A GB620004A (en) 1947-01-01 1947-01-01 Improvements in and relating to vibratory tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2547A GB620004A (en) 1947-01-01 1947-01-01 Improvements in and relating to vibratory tools

Publications (1)

Publication Number Publication Date
GB620004A true true GB620004A (en) 1949-03-17

Family

ID=9697032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2547A Expired GB620004A (en) 1947-01-01 1947-01-01 Improvements in and relating to vibratory tools

Country Status (1)

Country Link
GB (1) GB620004A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947886A (en) * 1958-04-29 1960-08-02 Gulton Ind Inc Piezoelectric ultrasonic transducer
FR2412679A1 (en) * 1977-10-25 1979-07-20 Ingersoll Rand Co System and drilling proceeds by high frequency percussion
US5059122A (en) * 1987-08-25 1991-10-22 Bien-Air S.A. Dental scaler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947886A (en) * 1958-04-29 1960-08-02 Gulton Ind Inc Piezoelectric ultrasonic transducer
FR2412679A1 (en) * 1977-10-25 1979-07-20 Ingersoll Rand Co System and drilling proceeds by high frequency percussion
US5059122A (en) * 1987-08-25 1991-10-22 Bien-Air S.A. Dental scaler

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