US2660436A - Indicating disk for golf club heads - Google Patents

Description

Nov. 24, 1953 E. F. GROSSMAN 60,436

INDICATING DISK FOR GOLF CLUB HEAD Filed June 24, 1950 EUGENE r: GkQS'SMflM INVENTOR.

BY i yad-fwb Patented Nov. 24, 1953 UNITED STATES PATENT OFFICE INDICATING DISK FOR GOLF CLUB HEADS Eugene F. Grossman, Santa Monica, Calif.

Application June 24, 1950, Serial No. 170,180-

3 Claims.

This invention relates to improvements in golf clubs for permitting the location of impact between the club and a golf ball, and this invention also relates to a golf playing aid or member which can be applied to the face of the golf club for recording the location of impact between the club and ball.

A main object of the present invention is to provide an improved golf club which is provided with a member superimposed on the face of the club for recording the location of impact between the club and a golf ball.

Another object of the present invention is to provide a member which can be applied to the face of the golf club for recording the location of impact between the club and ball.

Another object of the present invention is to provide a member as set out above provided with means for removably securing the member to the face of the club.

Another object of the present invention is to provide a member as above described marked and constructed to enable the location of the impact between the club and the ball to be more readily and quickly observed.

Another object of the present invention is to provide a member as above described, which is provided with means to enable it to be centered on the face of the golf club.

With the foregoing and other objects in view, which will be made manifest in the following detailed description and specifically pointed out in the appended claims, reference is had to the accompanying drawing for an illustrative embodiment of the invention, wherein:

Figure 1 is a three-dimensional view of a golf club embodying the concepts of the present invention shown in position for striking a golf ball;

Fig. 2 is a front view in elevation of the golf club shown in Fig. 1;

Fig. 3 is an enlarged fragmentary sectional view along lines 3-3 of Fig. 2, showing the location recording member and its manner of application to the face of the club;

Fig. 4 shows a modified form of the location recording member;

Fig. 5 is an enlarged fragmentary section view along lines 55 of Fig. 4;

Fig. 6 is another modified form of the invention shown in three dimensions; and

Fig. 7 is an enlarged fragmentary sectional view along lines l'! of Fig. 6.

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, Figure 1 shows a golf club generally indicated at IU which happens to be a driver but could as well be an iron. The golf club In has a face II and on this face there is removably secured a location recording member l3 in centered relation with respect to the face H. Member [3 has a central aperture l4 adapted to be aligned with a centering mark or indentation It on the face of the club.

The member l3 comprises a laminated structure including a layer 20 of colored sheet material and may conveniently take the form of colored cellophane, this layer 20 having a tacky adhesive 2| on the back thereof to enable the member 13 to be readily secured to the face of the golf club and yet be readily removed from the face of the golf club without coating the face. The outer side of layer 20 has a thin coating of wax 24 provided thereon. When the ball 26 contacts the member I3 a portion of the wax at 28 which may be considered the point of impact, is removed by the ball thereby exposing the colored surface of layer 20. This action clearly locates with reference to the center [4 of the member l3 the point of impact of the ball 26 on the face of the club.

The member 13 is preferably marked with radial lines 30 which assist the user of the club in more definitely locating the point of impact between the ball and the face of the club. The layer 20 of colored material preferably comprises three concentric rings of different colors. For instance, an outer ring of green 3|, an intermediate ring 32 of blue, and a central ring 33 of red. The wax 24, on the face of layer 20 does notcompletely obscure the lines 30 or the concentric rings 3|; 32, and 33, the wax giving a sort of translucent but not transparent effect. It is contemplated, however, that the layer 24 could be of material to completely obscure the markings on the member I3 and also completely obscure the fact that the member 13 was made of concentric different colored rings. The only difference would be that the user of the club would not be aware of the location of the rings and lines until after he had struck the ball but this difference would be rather immaterial. By providing the concentric different colored rings and the radial lines 30, an automatic indication of the degree of accuracy is recorded by the member l3 so that after the member 13 has been struck the user of the club merely peels off the member l3 and views where the member [3 has recorded the point of impact between the club and the ball. In Fig. 3, the user would observe a blue spot on the member l3 and therefore realize that the ball had not struck the face of the club centrally thereof whereas, if a spot of red was exposed, then the user would be apprised of the fact that the ball had struck the face of the club substantially centrally thereof. It will be appreciated that between the concentric rings 3|, 32, and 33 and radial lines 30 that information is also given with regard to hooks and slices thereby enabling the user to improve his game.

A modified form of the invention is disclosed in Figs. 4 and 5 wherein there is a laminated member generally indicated at 40 comprising a sheet 4| of carbon paper having the marking face 42 facing outwardly and the rear surface thereof having tacky adhesive 44 applied thereto to enable the member 40 to be readily applied to and re moved from the face of a golf club. In this modification of the invention it is contemplated that a sheet of translucent material 45 will be applied to the outer face of the carbon sheet 4|. When the ball strikes the member 40 an imprint will be recorded by the sheet 45. The user will be able to observe the location of the imprint with regard to the center of the member 40 and therefore be ap prised of the accuracy of contact of the golf ball with the face of the club.

Figs. 5 and 6 show still another modified form of the invention which comprises a laminated structure generally indicated by the reference numeral 50 which includes an intermediate layer 5| of carbon paper or the like having the marking face 52 facing outwardly and having the rear face thereof coated with a tacky adhesive 54. There is an annular ring of adhesive 56 around the peripheral outer face of sheet 5| to enable an opaque sheet 51 to be temporarily applied thereto. In this form of the invention it is contemplated that the entire member 50 may be removed from the face of the golf club and the outer sheet 51 removed to view the imprint made on the member 51 upon contact of the ball therewith, or, the member 50 may be left on the face of the golf club and the sheet 51 peeled off and either member 5'! replaced by another member or the marked sheet being merely pressed back into place.

It will be appreciated that the present invention provides a member which records the location of impact between the club and the ball and which member is readily applicable to the face of a golf club and readily removable therefrom. The representations in the drawing have been of necessity enlarged for a clearer presentation but it will be realized that the location recording members are very thin and therefore do not interfere with the usual contact between the golf 4 ball and the face of the club. There will be unavcidably a slight shock-absorbing feature provided by the location recording member, but this will be very slight and will not in any way materially interfere with the normal effective use of a golf club.

Various changes" may be made in the details of construction without departing from the spirit and scope of the invention as defined by the appended claims.

I claim:

1. A golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.

2. A golf playing aid comprising a disc of colored material, a tacky adhesive on one face of said disc for attaching the disc to the striking face of a golf club, an aperture in said disc for aligning the latter with the center of said club, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.

3. A golf playing aid comprising a disc of colcred material, a tacky adhesive in one face of said disc for attaching the disc to the striking face of a golf club, radial lines and concentric circles imprinted on said disc in opposed relationship to said one face for dividing the disc into areas, and a readily removable waxy layer on the face of said disc opposed to said one face whereby when a golf ball is struck by the disc in the course of swinging a golf club on which the disc is mounted a portion of said waxy layer will be removed thereby.

EUGENE F. GROSSMAN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 566,101 Sweny Aug. 18, 1896 1,464,029 Coughtrie Aug. '7, 1923 1,485,089 Musselman Feb. 26, 1924 2,030,135 Carpenter Feb. 11, 1936 2,495,679 Abrecht et al Jan. 31, 1950

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