GB224724A - Adjustable tennis rackets - Google Patents

Adjustable tennis rackets

Info

Publication number
GB224724A
GB224724A GB2913723A GB2913723A GB224724A GB 224724 A GB224724 A GB 224724A GB 2913723 A GB2913723 A GB 2913723A GB 2913723 A GB2913723 A GB 2913723A GB 224724 A GB224724 A GB 224724A
Authority
GB
United Kingdom
Prior art keywords
handle
frame
nut
wedge
thread
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
GB2913723A
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.)
ERNEST CYRIL LYNCH
WILLIE HOWLETT
Original Assignee
ERNEST CYRIL LYNCH
WILLIE HOWLETT
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 ERNEST CYRIL LYNCH, WILLIE HOWLETT filed Critical ERNEST CYRIL LYNCH
Priority to GB2913723A priority Critical patent/GB224724A/en
Publication of GB224724A publication Critical patent/GB224724A/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
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/12—Devices arranged in or on the racket for adjusting the tension of the strings

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Toys (AREA)

Abstract

224,724. Wright, A. A., Howlett, W., and Lynch, E. C. Nov. 19, 1923. Rackets.- In an adjustable tennis racket or the like means are provided for tightening the stringing by thrusting the frame out of the handle and bv moving the wedge in the opposite direction. A nut 7 at the end of the handle is rigidly attached to a tube 5 provided with a screw thread 16 engaging a collar 8 attached to the frame 2. The frame is expanded to tighten the strings by rotating the nut relative to the handle thus forcing out the collar 8 and frame 2. At the same time a second nut 6 rotates by frictional contact with the nut 7 and, by means of a rod 4 and thread 18, draws down the wedge 3 to force the frame on to a channel-shaped seating 15 within the handle. The threads 16 and 18 are of opposite hand and the thread 18 is the coarser thereby giving a differential adjustment. At each side of the wedge is a spring-pressed flap 24 which opens inwards under air pressure during a stroke and allows air to pass through the handle for the purpose of keeping the handle cool. The frame 2 is of channel section, Fig. 9, thickened in the middle and having the sharp angles rounded off. The edges of the string holes are rounded off.
GB2913723A 1923-11-19 1923-11-19 Adjustable tennis rackets Expired GB224724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2913723A GB224724A (en) 1923-11-19 1923-11-19 Adjustable tennis rackets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2913723A GB224724A (en) 1923-11-19 1923-11-19 Adjustable tennis rackets

Publications (1)

Publication Number Publication Date
GB224724A true GB224724A (en) 1924-11-20

Family

ID=10286742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2913723A Expired GB224724A (en) 1923-11-19 1923-11-19 Adjustable tennis rackets

Country Status (1)

Country Link
GB (1) GB224724A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642283A (en) * 1970-02-02 1972-02-15 Howard John Wilkens Magnesium tennis racket with weighted throat piece
US4013290A (en) * 1972-05-10 1977-03-22 Robert Stevens Racket for tennis and similar games
GB2247842A (en) * 1990-09-11 1992-03-18 Dennis Chen A badminton racket

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642283A (en) * 1970-02-02 1972-02-15 Howard John Wilkens Magnesium tennis racket with weighted throat piece
US4013290A (en) * 1972-05-10 1977-03-22 Robert Stevens Racket for tennis and similar games
GB2247842A (en) * 1990-09-11 1992-03-18 Dennis Chen A badminton racket

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