GB1222819A - Improvements in or relating to rackets - Google Patents

Improvements in or relating to rackets

Info

Publication number
GB1222819A
GB1222819A GB50461/67A GB5046167A GB1222819A GB 1222819 A GB1222819 A GB 1222819A GB 50461/67 A GB50461/67 A GB 50461/67A GB 5046167 A GB5046167 A GB 5046167A GB 1222819 A GB1222819 A GB 1222819A
Authority
GB
United Kingdom
Prior art keywords
rackets
stringing
spark erosion
relating
metal
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
GB50461/67A
Inventor
William Charles Carlton
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.)
Carlton Sports Co Ltd
Original Assignee
Carlton Sports 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 Carlton Sports Co Ltd filed Critical Carlton Sports Co Ltd
Priority to GB50461/67A priority Critical patent/GB1222819A/en
Priority to BE725179D priority patent/BE725179A/xx
Priority to FR1594960D priority patent/FR1594960A/fr
Priority to NL6817870A priority patent/NL6817870A/xx
Priority to ES362172A priority patent/ES362172A1/en
Priority to JP44001521A priority patent/JPS4930344B1/ja
Priority to DE19691924868 priority patent/DE1924868A1/en
Publication of GB1222819A publication Critical patent/GB1222819A/en
Priority to MY1971209A priority patent/MY7100209A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/12—Frames made of metal
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
    • B23H7/265—Mounting of one or more thin electrodes

Abstract

1,222,819. Rackets. CARLTON SPORTS CO. Ltd. 17 May, 1968 [7 Nov., 1967], No. 50461/67. Heading A6D. A method of manufacturing a metal racket frame for stringing is characterised in forming a plurality of holes in a metal member in positions corresponding to the desired positions of stringing apertures by spark erosion obtained by the simultaneous employment of spaced electrodes carried on a spark erosion head.
GB50461/67A 1967-11-07 1967-11-07 Improvements in or relating to rackets Expired GB1222819A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB50461/67A GB1222819A (en) 1967-11-07 1967-11-07 Improvements in or relating to rackets
BE725179D BE725179A (en) 1967-11-07 1968-12-09
FR1594960D FR1594960A (en) 1967-11-07 1968-12-09
NL6817870A NL6817870A (en) 1967-11-07 1968-12-12
ES362172A ES362172A1 (en) 1967-11-07 1969-01-07 Improvements in or relating to rackets
JP44001521A JPS4930344B1 (en) 1967-11-07 1969-01-09
DE19691924868 DE1924868A1 (en) 1967-11-07 1969-05-16 Frame for a ball game bat, process for its production and device for carrying out the process
MY1971209A MY7100209A (en) 1967-11-07 1971-12-31 Improvements in or relating to rackets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50461/67A GB1222819A (en) 1967-11-07 1967-11-07 Improvements in or relating to rackets

Publications (1)

Publication Number Publication Date
GB1222819A true GB1222819A (en) 1971-02-17

Family

ID=10455976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50461/67A Expired GB1222819A (en) 1967-11-07 1967-11-07 Improvements in or relating to rackets

Country Status (8)

Country Link
JP (1) JPS4930344B1 (en)
BE (1) BE725179A (en)
DE (1) DE1924868A1 (en)
ES (1) ES362172A1 (en)
FR (1) FR1594960A (en)
GB (1) GB1222819A (en)
MY (1) MY7100209A (en)
NL (1) NL6817870A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360202A (en) * 1978-09-08 1982-11-23 Lo Kun Nan CFRP or FRP made badminton racket frame
EP0466436A2 (en) * 1990-07-09 1992-01-15 Ngk Insulators, Ltd. Electrode clamp device for use in electrochemical machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360202A (en) * 1978-09-08 1982-11-23 Lo Kun Nan CFRP or FRP made badminton racket frame
EP0466436A2 (en) * 1990-07-09 1992-01-15 Ngk Insulators, Ltd. Electrode clamp device for use in electrochemical machine
EP0466436A3 (en) * 1990-07-09 1992-05-06 Ngk Insulators, Ltd. Electrode clamp device for use in electrochemical machine
US5158659A (en) * 1990-07-09 1992-10-27 Ngk Insulatos, Ltd. Electrode clamp device

Also Published As

Publication number Publication date
ES362172A1 (en) 1970-11-01
BE725179A (en) 1969-05-16
MY7100209A (en) 1971-12-31
NL6817870A (en) 1969-11-19
DE1924868A1 (en) 1969-12-11
JPS4930344B1 (en) 1974-08-12
FR1594960A (en) 1970-06-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee