US1185432A - Golf-ball. - Google Patents

Description

L. T. PETERSEN.

GOLF BALL.

APPLICATION FILED FEB,2I, 191s.

Patented May 30, 1916.

mwmtoz En s'ra'rEs m ma orurc LUnvIG 'r. rET BsEN, or YoUNGsrowm-omoQ I GOLF-BALL.

specification bf Letters Patent.

r PatentedM'ay so, ma,

Application filed February 21, 1916. Serial N 0. 79,648.

To all whom it. may concern Be it known that I, LUDVIG a citizen of the vUnited States, residing at Youngstown, inthe county of Mahoning and State of Ohio, have invented. certain new and useful Improvements in Golf- Balls; and I do'herebydeclare the following to be a fu1l,clea'r,,and exact description of the invention, such as;will enable others skilled in the art to which it appertains t make and use the same.

- My present invention relates to the manufacture of resilient balls, but has reference and adapted for use in playing the game of golf, or other games employing balls of' similar character. 7

In the manufacture of balls embodying this invention it should be. understood that balata-gum is largely used as a basic material, but at .the same time it should be then heated to restore its latent contractile properties, and finally shaped under pressure into the desired'form and surface configuration. It is also-understood by persons-familiar with balata and similar gums of the gutta group, that when sheeted orcalendered it is characterized by a grain run- 40 'ning parallel with the length of such sheets;

that it is stretchable at right angles to this grain but substantially inelastic when so stretched, and that after stretching, its con= tractile properties maybe restored by the application of heat thusrendering it'elastic. One object of the present inventionis to provide balls for the use first above indi-" cated, and other uses, possessing unusual strength and durability, a high degree of resiliency, true spherical form, uniformity and'compactness of structure, accurate balastic properties, and a confined homogeneous internal strain. l A further object ofthe invention isthe production of over wound or built-up core more especially to balls which are designed less, seamless and resilient balllbodies, hav T. PETERSEN, Y

ing retaining covers also of seamless and.

resilient material, capable of resisting and safely confining the expansive pressure, or homogeneou's'strain of the within contained ball -body, and-at the same time capable of instantly recovering normal spherical form I after momentary distortion caused by the blow of a. golf stick, or by other means.

Other objects and advantages of this invention will be apparent to persons skilled in the art to which it relates, and the invention will be hereinafter particularly described, and then pointe d out inthe claims following. H

In the accompanying drawings which form part of this application for'Letters Patent, and Whereon' like characters refer' to corresponding parts in the several views: Figure l is a transverse sectional View of the present invention taken centrally through a ball-body and the outer cover thereof. Fig. 2 is aperspective view showing a ball-body in the process of formation.

Fig. 3 is also a perspective viewshowing a ball-body cut in half for the purpose ofillustrating its inherent expansive properties, and the efiect thereof when not confined by an outer cover, and Fig. 4: is a side elevation of acompleted golf ball, in this instance a bramble surface configuration having been shown for ex'aple.

'Reference'being had to the drawings and numerals thereon, 1 indicates a laminated strip, strips or pieces of sheeted balata and cured india rubber, the latter 1 in unstretched condition being interposed between. two similar. strips of balata 1 1 during the process of calendering. After valternate sheets of balata rubber and balata havethusbeen calendered or rolled together into relatively thin sheets, it-is customary to. out said laminated sheets into strips at right angles to the grain of said sheets.- In carrying out my present invention the said laminated strips comprising balatastrips 1,

1 and the interposed rubber strip 1*, arefirst stretched longitudinally to practically the elastic limit of said balata strips, thereby rendering latent their inherent contractile qualities and placing the interposed rubber strip 1* under tension. An exceedingly small nucleus 2 isthereuponrolled at" one end of the first of-said laminated strips,

and upon this'as a center is built a 'coreless 11 I I balls, but it is'by no means necessary that it 5 shall take place at the time and stage of ball-body from a succession of strips or pieces 1, each being first stretched as stated, and overwound one upon the other as indicated in Fig. 2, until approximately the desired size, weight, and spherical form has been produced. This accomplished the'ballbody is next subjected to a milddegree of heat from any suitable source and by any suitable means, whereby the latent contractile quantities of the balata strips l and 1 are excited, stimulated and restored, causing a radial expansion of the ball body in an outward direction, and rendering it as a whole, when confined within a suitable cover 3, peculiarly resilient and responsive in long drives, and at the same time comparatively dead to light delicate blows as in putting.

This restoration of the contractile proper ties of balata strips 1 1 coacting with the elasticity of stretched rubber strips 1*,- is essential to the production of superior manufacture above indicated, on the contrary the heating is equally effective, and in some instances more so, when applied at frequent intervals during the formation or winding of the ball-body. 1

The body of my present ball'havi'ng'been thus built up from laminated strips of balata and rubber wound and overwound, crossed and recrossed as shown by Fig.- 2 of the drawings, is next incased within the outer seamless resilientcover 3 aforesaid, which by preference, is .made in like manner as the ball-body from strips 1 applied andtreated as aforesaid. In case ofthe cover 3, however, the balata employed should be refined to extract its naturally dark color, and prepare it for final coloring, the same being trueof gutta-percha or celluloid when used as an outer casing.

Ball-body and cover, the latter of any suitable material, having been produced substantially as aboveindicated and of substantially spherical'form, are next subjected topressure in suitable molds heated to rencover to set before removal from the mold, after which it is finally coated or colored in thewell understood manner.

The foregoing is a description of my pres- 'ent invention-in its best form of embodiment at present known to me, but at the same time it should be understood that I by no means lim t myself to the particular ar- The completed ball I is then permitted to cool slowly, and itsrelation with cured rubber as a base.

Stretching such balata or like material to first render its contractile properties latent, overwinding such laminated strips including balata or like materials, into substantially spherical form, and heating either at intervals in the course of winding, or after practically all strips have been applied, to stimulate or restore the latent contractile properties of the balata or like materials, thereby producing a cumulative internal pressure. 7

In conclusion, it may be noted that balls made according to the present invention have been found more satisfactory andefii cient than balls made from balata only, for the reason that when supported and backed by an elastic material such as cured rubber l the laminated strips of balata 1 are capable of being drawn or calendered much thinner than would be possible if unsupported, and as a consequence this has been found to materially increase the contractility of the said balata strips, and proportionally increase the internal pressure of the ball-body when subjected to heat substantially as shown and described.

Having thus described my present invention, what I now claim and desire to secure by Letters Patent is:

1. As an article of manufacture a resilient ball-body made from overwound strips of cured rubber under tension and previously stretched balata in which latter the contractile qualities rendered latent by stretching have been restored after winding. 2. As an article of manufacture a resilient ball made from overwound strips of cured rubber under tension and previously stretched balata in which latter the con tractile qualities rendered latent by stretching have been restored subsequent to winding, in combination with a ball cover of like materials. r I

3. As an article of manufacture a resilient ball-body made of alternatestrips of cured rubber under tension and previously stretched balata in' which latter the contractile qualities rendered latent by stretching have been restored after winding.

4. As an article of manufacture a resilient ball made of laminated strips which comprise cured rubberunder tension and previously stretched .balata in which latter the contractile qualities rendered latent by stretching have been restored after winding.

5. As an article of manufacture a resilient ball made of overwound strips of cured rubber laminated with corresponding strips of previously stretched balata in which latstretching have beenrestored subsequent to ter the contractile qualities rendered latent winding.

' 10 by stretching have been restored subsequent In testimony whereof I afiix my signature,

to winding. in presence of two subscribing witnesses. 6. A golf ball made from overwound com- LUDVIG T. PETERSEN.

. posite strips of cured rubber and balata un- Witnesses.

der tension in which strips the contractile WM. E. DYRE,

qualities of the balata rendered latent by WALLACE DUNN.

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