US1627848A - Golf club - Google Patents

Description

May 10 1927' E. HUBBARD GOLF CLUB Filed April e, 1925' lNvENToR EDWARD L.Huasn|=w.

' ATTORNEY Patented 4May 10, 1927.

UNITED STATES PATENTjoFFi-CE.

EDWARD L.- HUBBARD, OF OAKLAND; CALIFORNIA.

GOLF CLUB.

-Application led April 6,

This linvention relates to golf clubs and more particularly to improvements in the head of the club and to an improved means for securely attaching the shaft to the head.

An` object of the invention is to .improve the construction of heads for golf clubs which are moulded of a phenol composition by embedding a filler of comparatively light weight material and reinforcing strips 1n the moulded head at certainlocations whereby to give better balance to the club, toreduce the weight of the head, and to strengthen the parts at the points of greatest strain.

Reference may be had to Patent #1,515, 390 granted to me on Nov. 11, 1924, for a description of a golf club having a remforced phenol composition head.

To lighten and strengthen aclub head of the above type I preferably insert a block of,wood, around which is found a layer of cord or of open-mesh cloth, the wood block and the cord or cloth being painted with a phenol insulating varnish or cement. Outside of this, and to be spaced therefrom, I insert a. loose winding or covering of wire mesh. I also embed, preferably in -horseshoeshape, a small tight coil of wire mesh, lapped outside of the wood insert. I find 1t desirable in some cases to have a layer of cloth molded close to the striking face and to the base of the club, and in some cases to have a layer of flat wire mesh set in from the top surface of the club.

I mold a hollow tube or socket in the composition b forming a tight winding of cord or cloth irectly on the tube and paintin this with the phenol varnish. Outside o this tube or socket and spaced therefrom, I embed a tube of wire mesh, so that after the molding pressure is relieved, the composition between the tube and the socket will be under compressive stresses. At the top edge of the stem of the club I may insert a strlp of sheet libre, painted with -the phenol cement. This is to protect the sharp lor somewhat feather edges from chipping.

The shaft of steel and preferably tapered at theend, is connected to the socket of a. wooden club header the socket of the molded club headby having a very tight and close winding o'f strong cord onl the tapered part of the shaft. The ends of this cord may be secured by any suitable way and is referably in one layer. vThe cord win ing is given a coat of phenol cement or suitable socket.

1925. seriaino. 20,937.

glue andinserted in the wooden or the metal clubwith a steel shaft 'handle secured tothe.

socket of the club, in accordance with my invention. i.

Figure 2 is a horizontal section through a molded lclub as on the line 2--2 of Figure 3, in the direction of the arrowsl showin the wood insert block and the various rein orcements.

Figure?) is a vertical section of the molded club as Ion theV section 3-3 of Figure 2, and showing the metal socket with reinforcement there around and a steel shaft inserted in the socket in a manner similar to that of lFigure ll. l

Reference is first directed to theimanner ot securing the shaft in a socket. The shaft l .is usually made with a taper 2, both being hollow around the taper ortion of the shaft. I make a. winding 3 of string or cord tightly wound and placed with the windings close together. This cord may be secured at the ends of the windings to the shaft in an suitable manner, as by halfhitches. W en this shaft, thus prepared, is

tov be secured to a wood golf-head 4, thewinding is covered with a suitable lue of which some forms of phenol insulating cements are suitable. The shaft is then inserted in the socket 5'. Ido not rely on any screws or other fastening elements as the.

cord gives .a sufficient frictionalenga ement on the shaft and the glue sufficient hesion to the socket. A plug C may be secured to the lower end of the shaft to lill the socket and give a finish.

The large number of turns of the cord on the shaft give sufiicient frictional resistance with the shaft as well as with the metal tubular socket of Figure 3. The gluing of the shaft to the head could be similar in either the wooden club of Fi ure 1 or the phenol com osition club of Figures 2 and 3.

T e formation' of the phenol composition club and itsv construction is as follows z-The composition is indicated by the numeralflO,

having a wooden block 11 inserted in about' the middle of the composition. This block has a winding thereabouts 12, of cord or an` open mesh cloth. ABoth thevbloek and the coi-dare covered with a phenol insulating varnish or cement. Outside of the block and encircling it is a wrapping 13, preferabl of Wire mesh. This is spaced from the b ook so that when the golf-head is molded under the high pressure used, in such operation, compressing the block: and when the pressure is relieved the composition 14, between the block and the mesh, will be under compressive stresses; v

A tightly wound coil of wire mesh is inserted around the body portion of the club head, somewhat in horseshoe shape as indicated in Figure 2. A flat wire mesh reinforcement 16 is preferably placed across the upper portion of the club head. Along the striking face and bottom I preferably use a layer of cloth of open mesh' coated with phenol varnish. This is placed in the mold so that it will be substantially' in the outside face or what might be termed the skin ofthe club. r

The socket for the shaft 1 is constructed as follows z-A metal tube 17 of substantially the same taper as the taper 2 of the shaft 1, has a tight Winding 18 of cord extending substantially from one end to the other. An open mesh fabric tightly stretched will also be suiiicient, the cord or fabric being painted with the phenol varnish. A tube 19 of wire mesh encircles the socket and is spaced therefrom in order to maintain, to a certain extent, the composition 20 between the socket and the mesh tube, under compressive stresses when the molding pressure is relieved. At the sharp edges I may insert a layer of sheet fibre 21 such as heavy paper painted with phenol varnish in order to protect the ed e from chipping.

The sha t l, after being tightly wrapped at its tapered end with the cord 3 andthe cord given a coating of adhesive, is attached to the club head by forcing the tapered end into the socket 17 of the moulded head 10 andis firmly held in placewhen the adhesive hardens.

For some types of clubs it would not be i 'gives considerable resiliency to the club i head.

Having described my invention, I claim 1. A molded phenol composition golf-club having a filler block of wood with a winding cordor cloth around the wood, the wood and cord or cloth being coated with a phenol varnish or cement.

= 2. A molded golf-club as claimed in claim 1, having in addition a reinforcement of wire mesh surrounding the wood filler block.

3. A molded golfclub as claimed in claim 1, having a reinforcement of tightly coiled wire mesh fabric in the'body of the composition.

4. A molded golf-club as claimed in claim 1, having a reinforcen'lent of sheet fibre material coated with phenol cement inserted in the sharp corners of the club.

5. A molded golf-clubas claimed in claim 1, having a reinforcement of cloth fabric inserted in the composition immediately inside of the striking face.

6. In a molded phenol composition golfclub, a socket comprising a metal socket tube with a winding of cord or cloth around the socket tube, said cord or cloth being coated with a phenol varnish or cement.

7. A molded golf-club as claimed in claim 6, having in addition'a tube of wire mesh surrounding the socket tube and embedded u in the composition spaced slightly from th tube.

In testimony whereof I aflix my signature.

EDWARD L. HUBBARD.

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