GB328081A - Improvements in tennis balls - Google Patents

Improvements in tennis balls

Info

Publication number
GB328081A
GB328081A GB743829A GB743829A GB328081A GB 328081 A GB328081 A GB 328081A GB 743829 A GB743829 A GB 743829A GB 743829 A GB743829 A GB 743829A GB 328081 A GB328081 A GB 328081A
Authority
GB
United Kingdom
Prior art keywords
plugs
tennis balls
balls
vulcanized
unvulcanized
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
GB743829A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB743829A priority Critical patent/GB328081A/en
Publication of GB328081A publication Critical patent/GB328081A/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
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • A63B39/02—Arrangements for maintaining the pressure
    • A63B39/04—Pricking-balls; Tools for blowing them up
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B2041/005—Hollow inflatable balls with counterweight for adjusting the centre of gravity

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

328,081. Williams, L. E.. and James, G. E. March 7, 1929. Balls. - Relates to tennis balls of the kind described in Specifications 328,080 and 328,170 having inflating plugs composed of portions A, B of vulcanized or unvulcanized or less highly vulcanized rubber, and consists in the provision of two plugs arranged diametrically opposite one another within the ball to improve the balance thereof. The positions of the plugs are indicated by projections E such as are described in Specification 328,047.
GB743829A 1929-03-07 1929-03-07 Improvements in tennis balls Expired GB328081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB743829A GB328081A (en) 1929-03-07 1929-03-07 Improvements in tennis balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB743829A GB328081A (en) 1929-03-07 1929-03-07 Improvements in tennis balls

Publications (1)

Publication Number Publication Date
GB328081A true GB328081A (en) 1930-04-24

Family

ID=9833096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB743829A Expired GB328081A (en) 1929-03-07 1929-03-07 Improvements in tennis balls

Country Status (1)

Country Link
GB (1) GB328081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479649A (en) * 1983-06-01 1984-10-30 Newcomb Nelson F Illuminated playball

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479649A (en) * 1983-06-01 1984-10-30 Newcomb Nelson F Illuminated playball

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