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Publication numberUS1529959 A
Publication typeGrant
Publication dateMar 17, 1925
Filing dateJan 14, 1924
Priority dateJan 14, 1924
Publication numberUS 1529959 A, US 1529959A, US-A-1529959, US1529959 A, US1529959A
InventorsJohn A Martin
Original AssigneeJohn A Martin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Universal golf club
US 1529959 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 17. 1925.

J. A. MARTIN UNIVERSAL GOLF CLUB Filed Jan. 14, 1924 lliVEHTOR,

JOHN A. MARTlP-l,

Attorney.

Patented Mar. 17, 1925.

UNITED STATES JOHN A. MARTIN, 0F INDIANAPOLIS l, INDIANA.

, UNIVERSAL GOLF CLUB.

Application filed January 14, 1924. Serial no. 686,009.

To all whom it may concern Be it known that I, JOHN A. MARTIN, a citizen of the United States, residing at In dianapolis, in the county of Marion and State of Indiana, have invented a new. and useful Universal Golf Club, of which the following is a specification.

The primary object of my invention is so to form a golf club as to make it equally suitable for a driving iron or cleek, midiron, mashie, mashie-niblick, niblick, and putter, such that the golfer may make any play desired, with one club, by changing the club-head angle, and at the same time, to be so constructed as to retain practically the same weight and balance as the ordinary non-adjustable golf-club, thereby roducing an adjustable club that 'is practicaFfor making all iron shots. g My club eliminates the necessity of having to carry more than theone club around the course, and by the means that I employ, to provide a varying angle of the club-head, I am able to bring the resultant center of mass of the head approximately on the line of the club shaft axis, at a point on the club face which is the normal point of contact 1 with the golf ball when struck. In devising this structure, I obtain a balance of the a club that practically eliminates the otherwise usual tor ue about the club shaft from being set up w en the ball is struck. Heretofore, the golfer has had to estimate the robable torque and make compensation for 1t by a rigid grip on the shaft.

A further object of my invention is to provide indicating means whereby the head may be set to give any predetermined angle.

of loft. A golfer learns by, experience in judging thelay of his ball whether his shot requires, for an example, a mashie or a niblick, and, having made practically the same shot before, he can set the head of my club to exactly the same angle of loft as he used previously for the same shot, and he can make such an adjustment as quickly and as easily as to carry the extra. clubs about and select the proper one for the particular shot. There is sufficient weight concentrated and balance in the resultant club-head to make my club a good practical driving iron, and

Like characters of reference indicate like I parts throughout the several views.

The adjusting plate 5 is approximately triangular shaped and is ri idly attached near its top edge- (this edge eing the base of the triangle) to the shaft 6 withits face at an angle approximating thirty degrees and tilted back to bring the front edge a, Fig. 2, parallel to the axis of theshaft 6.

The relative position, of the plate 5 on the shaft 6 ma be varied to suit the individual, although the above described position will meet all average requirements.

I form a shank 7 on a head 8, which head conforms in contour and general dimensions to the usual head employed in the customary niblick or putter. The shank 7 is sufficiently wide to .provide substantial contact with the adjusting plate 5, and is provided with a lower pivot stud 16 about which the entire head 8 pivots inthe hole 9 in the plate 5. A.

ceiltral screw threaded stud 10 extends from the shank 7 and through the annular slot 11 which has the hole 9 as its center of curvaturec From the upper end of'the shank 7 a positioning pin 12 projects into one of a series of holes 13 located on an arc with the hole" 9 as its center. The head 8 is held in firm contact with the plate 5 by. means of a wing nut 14 screwed down on the stud 10 to compress the two washers 15 against the plate 5. 7 I v To change the angle of the head 8, the wing nut 14 is backed off on the stud 10 sufficiently ,to permit the head 8 and its shank 7 to be relieved from contacting the plate 5 such that the pin 12 is disengaged from the hole 13. The head 8 may then be rotated about its pivot lug 16 in the hole 9, to the desired angle at which position the head 8 may be pressed toward the plate 5 to position the pin 12 in the corresponding new hole 13. The wing nut 14 is than drawn up tightly to secure this position. In the form I have here shown, it is my intention to take the drive through the pivot lug 16 and the friction of the shank 7 on the plate 5 produced by the wing nut 14 rather than through the pin 12, on account of possible danger of shearing off the pin 12.

By observation of the number of holes 13 from the edge in one setting of the head, a corresponding angle of the head may be again secured at will.

While I have here shown my invention in the form now best known to me, I desire to point out that it is capable of structural variations without departing from the spirit of the invention, and I do not desire to be limited to the precise form as shown any more than may be requircd by the followmg cla ms.

claim: p 1. In a universal golf club, in combination, a shaft, an adjusting plate on said shaft having aface at an approximate angle of thirty degrees to the shaft, a detachable head pivoted to the lower endof the plate and having means for engaging the plate in a plurality of positions of said plate, said means being in an arc concentric with the pivotal connection between the head and plate, and means located between the pivot and the coning the head to the plate. J

2. In a universal golf club,in combination, a shaft, an approximately triangular shaped adjustin plate on said shaft having its apex depen ed downward and its face at an approximate angle of thirty degrees and one edge parallel to the axis of said shaft, said adjusting plate having a pivot hole near its apex, an annular slot and a plurality of positioning holes centered on an arc concentric with the pivot hole; a detachable head; a shank extending upward from said head; a pivot lug on the shank; a positioning pin on the shank; a threaded lug on the shank; a nut adapted to screw on said threaded lug.

Signed at Indianapolis, in the 'county of Marion. and State of Indiana, this 31st dayof December, 1923. p

' JOHN A. MARTIN.

30 centric series of engaging means for secur-

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3477720 *Oct 11, 1965Nov 11, 1969Frances S SabaAdjustable head assembly for golf club
US3984103 *Mar 4, 1975Oct 5, 1976Nix Jack WMatched golf club set
US4058312 *Sep 5, 1974Nov 15, 1977The Square Two Golf CorporationGolf club
US4537394 *Oct 17, 1983Aug 27, 1985Golinsky Jr Joseph JExercise apparatus for developing arm and wrist muscles
US5228689 *Apr 6, 1992Jul 20, 1993Donofrio Sr Frank CGolf club with loft adjusting means
US8202173 *Aug 13, 2009Jun 19, 2012Nike, Inc.Angled connection for golf club heads and shafts
US8533060Jan 31, 2013Sep 10, 2013Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US8956238Sep 30, 2011Feb 17, 2015Nike, Inc.Golf clubs and golf club heads
US8986130Mar 14, 2013Mar 24, 2015Nike, Inc.Golf clubs and golf club heads
US9033815Oct 31, 2012May 19, 2015Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US9053256Oct 31, 2012Jun 9, 2015Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US9149693Oct 31, 2012Oct 6, 2015Nike, Inc.Golf club and golf club head structures
US9155944Nov 21, 2012Oct 13, 2015Nike, Inc.Golf club and golf club head structures
US9168435Jan 9, 2015Oct 27, 2015Nike, Inc.Golf club head or other ball striking device having impact-influencing body features
US9186546Sep 30, 2011Nov 17, 2015Nike, Inc.Golf clubs and golf club heads
US9186547Sep 30, 2011Nov 17, 2015Nike, Inc.Golf clubs and golf club heads
US9192831Aug 23, 2012Nov 24, 2015Nike, Inc.Golf club and golf club head structures
US9375624May 31, 2013Jun 28, 2016Nike, Inc.Golf clubs and golf club heads
US9403078Feb 26, 2015Aug 2, 2016Nike, Inc.Golf clubs and golf club heads
US9409068Mar 13, 2013Aug 9, 2016Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US9409073May 31, 2013Aug 9, 2016Nike, Inc.Golf clubs and golf club heads
US9409076May 31, 2013Aug 9, 2016Nike, Inc.Golf clubs and golf club heads
US9433834Aug 23, 2012Sep 6, 2016Nike, Inc.Golf club and golf club head structures
US9433844May 31, 2013Sep 6, 2016Nike, Inc.Golf clubs and golf club heads
US9433845May 31, 2013Sep 6, 2016Nike, Inc.Golf clubs and golf club heads
US9440127Feb 26, 2015Sep 13, 2016Nike, Inc.Golf clubs and golf club heads
US9446294Mar 11, 2013Sep 20, 2016Nike, Inc.Golf club and golf club head structures
US9517391Jun 8, 2015Dec 13, 2016Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US9522309Jun 8, 2015Dec 20, 2016Nike, Inc.Adjustable golf club and system and associated golf club heads and shafts
US20110039631 *Aug 13, 2009Feb 17, 2011Oldknow Andrew G VAngled connection for golf club heads and shafts
Classifications
U.S. Classification473/245
International ClassificationA63B53/06, A63B53/02
Cooperative ClassificationA63B53/06, A63B49/06, A63B2053/026
European ClassificationA63B53/06