Nova Patents
US1950342A

Shaft for golf clubs

Abstract

This record has no abstract on file.

US1950342A, drawing sheet 1
Sheet 1 of 6

Term

Term ended

Expired 6 March 1951, 75.6 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

4 claims: 4 independent, 0 dependent

  1. 1
    Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:— 1. A shaft for golf clubs and the like, comprising metallic material in substantially tubular form, and material having shock absorbing properties above wood and in the range including sponge rubber and extending substantially the entire length of said metallic material and in intimate contact therewith.
  2. 2
    A shaft for golf clubs and the like, comprising metallic material in substantially tubular form, and material having shock absorbing properties above wood and in the range including sponge rubber and extending substantially the entire length of said metallic material and in intimate contact therewith, said metallic material having a double wall, and said material with the shock absorbing properties being arranged in between the double wall.
  3. 3
    A shaft for golf clubs and the like, comprising metallic material in substantially tubular form, and material having shock absorbing properties above wood and in the range including sponge rubber and extending substantially the entire length of said metallic material and in intimate contact therewith, said metallic material 1 having a double wall, and said material with the shock absorbing qualities being arranged within the double wall and also in the center.
  4. 4
    A shaft for golf clubs and the like, compris ! ing metallic material in substantially tubular ’ form, material having shock absorbing properties • above wood and in the range including sponge rubber and extending substantially the entire > length of said metallic material and in intimate > contact therewith, and means for variably holding said material with the shock absorbing properties compressed under selective stress for varying the shock absorbing qualities thereof. 125 inf’ ™ ίπ· 4 for ? oJf cIubs and tbe Jike < comprising metallic material in substantially tubular H^,± terial ? aving shock absorbing SS-F 130 * ct therewi th, and means for varia 133 s'xs’xsxxxr' 1 IRVING H. MESKRT, 140 the core may be made separately and later inserted' in the hollow shaft. The sponge rubber core acts as a vibration dampener and eliminates the objectionable shock of vibration when the 5 ball is struck in play. The rubber sponge core combined with the tubular shafting serves to accomplish the strengthening of the shaft, the lowering of the whipping point, and the improving of the dynamic balance as before pointed out. It is not the intention of this invention to limit it to the use of sponge rubber as the only shock insulator since other light fibroiis material such as cork may be used, or a mixture of both cork and rubber—or alternate sections of both cork and rubber—or even other insulating fibre. All hollow “steel” shafts are provided with a plug similar to member 15 on the free end of the shaft—so that following the usual procedure of club construction—the insulation or “contents” of the shaft according to this invention are thereby sealed against deterioration by air, sunlight, moisture, etc. Nor is it the intention of this invention that the insulation material must occupy the full length of the hollow metal tubing—but might fill the lower, upper or middle, portions of the shaft. Nor is it the contention that the insulating material must solidly fit the cross section of the shaft but might be present as a layer or veneer on the inside of the tubular shafting. In Figs. 5, 6 and 7 various modified constructions of the invention have been shown, in which its application to a double wall shaft is disclosed. Reference numeral 16 discloses a double walLtube with a core of sponge rubber 17 disposed between the walls. In Fig. 6 the double wall “steel” shafting 16 has been disclosed with a rubber core 18 disposed within the inner wall. In Fig. 7 a double wall tube 16 has been shown with the sponge rubber core 17 and 18 disposed both inside of the inner wall and between both walls. A still further modified arrangement of the invention consists in the addition of means for changing the resiliency of the core so as to effect the “feel” or playing qualities of the shafting. According to this arrangement the plug 15 is formed with , crossed slots 19. The core 14 is formed with an elongated opening 20 directly beneath one of the crossed slots and extending substantially the full length of the core. A metallic oSng°2^ ζΤίΛ the lon ™^ 1ns m«ΐ™’ *? »« “1 ««usewS XXX 2010 e ”“ Ee the «*> my new shell—le, eomparS Sthe Xm 1 100 105 110 115 120 145 1BO
Independent claims4