US 922773 A
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Description (OCR text may contain errors)
APPLICATION FILED MAY 19, 1908.
Patented May 25, 1909.
ELEAZER KEMPSHALL, OF LONDON, ENGLAND GOLF-BALL.
Specification of Letters Patent.
Patented May 25, 1909.
Application filed May 19, 1908. Serial No. 433,673.
quence that the club, when striking a ball, is
apt to slip relatively thereto.
Another object 1s to provide a surface which, besides resisting Wear and te'ar, will possess considerable anti-slipping )roperties.
The invention consists prunari y in providing a surface of a golf ball with numerous small circular recesses and central protuberances within the recesses.
The invention also consists in providing a golf ball with projections u 011 its outer surface, in which recesses are orn1ed.-
The invention also consists in providing a golf ball with bands upon its outer surface, said bands comprising alternating wider and narrower-portions, the wider portions having recesses. 1
The accompanying drawings illustrate a ball according to the invention, Figure 1 being an exterior view, While Figs. 2 and 3 are sections on, lines 11-11 and 111111 of Fig. 1, and Fig. 4 is an exterior view of a different embodiment of my invention.
In carrying out the invention as illustrated, the surface of the ball is provided with circular recesses c, which are preferably provided with central protuberances d. The recesses c are preferably formed in a plurality of projections, which, as shown in Figs. 1, 2 and 3, are projecting bands comprising wider portions a connected by narrower portions or necks b, and provided with the circular recesses c. The protuberances (1 may be of any convenient configuration, but are preferably of dome shape, as indicated in Figs. 2 and 3. Their summits may be flush with the surfaces surrou'mling the recesses, or may project beyond or below the same. The recess-containing projections may be of complete circular form and need not merge into or be connected with one another, as shown in Fig. 4, where said projections are shown as circular studs (1 Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:
1. A golf ball having a plurality of circular recesses on its outer surface, and protuberances Within said recesses, substantially as and for the purposes hereinbefore set forth.
2. A golf ball having a plurality of projections upon its outer surface, said projections having circular recesses therein, substantiall as and for the purposes hereinbefore set forth.
3. A golf ball having a series of projecting bands upon its outer surface, said bands comprising alternating wider and narrower portions, said wider portions having circular recesses therein, substantially as and for the purposes hereinbefore set forth.
4. A golf ball having a series of projecting bands upon its outer surface, said-bands comprising alternating Wider and narrower portions, said wider portions having circular recesses therein, and protuberances within the said recesses, substantially as and for the purposes set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.
A. W. MATHYS, E. COURTNEY WALKER.