Improvements in Machines for Grooving Balls.
Year: 1892

page_text: Date of Application, 10th June, 1892
Complete Specification Left, 10th Mar., 1893-Accepted, 6th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in Machines for Grooving Balls.
We, FRANK ASHWELL, of Sycamore Lane, Leicester, in the County of Leicester,
Engineer, and ALFRED WILLIAM PHILLIPS, of Nuneaton, in the County of
Warwick, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the manner in which we construct and arrange machines
for grooving balls used for playing golf, bowls, or for other purposes whereby
such grooving is performed regularly and uniformly over the surface of the balls
in an expeditious manner.
In carrying our invention into effect when constructing our improved grooving
machine, to be driven by belting or rope gearing, transmitted from a pulley or line
shaft, we arrange a standard or double frame plate with two bearings of ordinary
construction in which we cause our central shaft or spindle to revolve. Upon the
outside or on any other convenient position upon the central spindle we place two
pulleys one fast and one loose.
Upon the same spindle, preferably at the opposite end to that carrying the
pulleys, we mount our cutting disc or wheel, having its centre cut away or recessed
to form a bed or seat of a configuration to suit the shape of the ball that is to be
grooved. Within this concaved bed or hollow we cut or form a number of V shaped
or other suitable projections of a depth and pitch to suit the grooves which are
required to be cut within the ball. These projections may be either cut out of the
solid disc or wheel, or they may be formed in or upon a ring, which we sometimes
employ to fit upon the centre or driving boss which we secure to the shaft or
spindle. We form our rings with groove cutters of different pitch and depth to
suit different balls or to suit particular requirements, and we replace one ring by
another without disturbing the position of the driving boss or centre upon the
shaft. Similarly when employing a solid disc without removable rings we vary the
pitch and depth of the cutters to suit any requirement.
We cause the companion cutting surface to be formed upon a stationary bed or
block, the die being of circular form to suit the diameter of the wheel, and having
a recessed or curved path or bed for the ball to pass through, in such a position
that when the cutting wheel revolves within and through the die plate a complete
circle is formed to suit the diameter of the ball. We cause similar projections,
ribs or teeth to be formed upon the stationary bed so that both sides of the ball
may be grooved at the same time.
We carry the stationary die plate in between slides or standards arranged in
any well known manner for supporting like parts of machines for milling or like
purposes. But we prefer to arrange a stem or stalk upon the underside of the
circular die plate, which stem we carry in a bearing or bracket attached to or
carried upon the standard of the machine. We secure the stem within this bracket
by means of screws, pins or cotters in any well known manner; or we cause the
head of the stem to rest upon the top of the bracket and thus to be sufficiently
secured without any bolt or screw.
Instead of having a circular cutter and circular path or bed, we sometimes form
grooving projections or cutting ribs upon a straight, horizontal or vertical bed,
the bed being grooved to suit the circular shape of the ball; these grooving ribs
or cutters we cause to work upon one side of the ball, while the companion block
or sliding cutter we form out of a horizontal semi-circular grooved sliding die
which we cause to travel across the bottom die plate.
We arrange slides of any ordinary kind to suit and to retain the sliding cutting

page_text: die plates and we give motion to the slide by means of eccentrics, cranks or other
well known mechanical reciprocating levers.
We modify the methods of driving, the size of the die plates and the exact
arrangement of the machine to suit large or small balls that may be required to be
grooved.
Dated this 9th day of June 1892.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Machines for Grooving Balls.
We, FRANK ASHWELL, of Sycamore Lane, Leicester, in the County of Leicester,
Engineer, and ALFRED WILLIAM PHILLIPS, of Nuneaton, in the County of
Warwick, Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to the manner in which we construct and arrange machines
for grooving balls used for playing golf, bowls, or for other purposes whereby such
grooving is performed regularly and uniformly over the surface of the balls in an
expeditious manner.
In the accompanying sheet of explanatory drawings
:-
Figure 1 is a front elevation, Figure 2 a part sectional end elevation of one form
of machine which we construct.
Figure 3 is a part sectional front elevation and Figure 4 an end elevation of
another form of our machine which we sometimes construct in accordance with our
present invention.
In carrying our invention into effect when constructing our improved grooving
machine, to be driven by belting or rope gearing. transmitted from a pulley or
line shaft as shown in Figures 1 and 2, we arrange a standard or double frame
plate A. A with two bearings H H¹ of ordinary construction in which we cause
our central shaft or spindle B to revolve. Upon the outside or on any other
convenient position upon the central spindle B we place two pulleys C C₁ one fast
and one loose. Upon the same spindle, preferably at the opposite end to that
carrying the pulleys, we mount our cutting disc or wheel D, having its centre d
cut away or recessed to form a bed er seat of a configuration to suit the shape of
the ball that is to be grooved. Within this concaved bed or hollow d we cut
or form a number of shaped or other suitable projections of a depth and
pitch to suit the grooves which are required to be cut upon the ball. These pro-
jections may be either cut out of the solid disc or wheel, or they may be formed in
or upon a ring, which we sometimes employ to fit upon the centre or driving boss
which we secure on to the shaft or spindle B. We form our rings with groove
cutters of different pitch and depth to suit different balls or to suit particular
requirements, and we replace one ring by another without disturbing the position
of the driving boss or centre upon the shaft. Similarly when employing a solid
disc as D without removable rings we vary the pitch and depth of the cutters to
suit any requirement. We cause the companion cutting surface E to be formed
upon a stationary bed or block F, the die E being of circular form to suit the
diameter of the wheel D, and having a recessed or curved path or bede for the
ball to pass through, in such a position that when the cutting wheel D revolves
within and through the die plate E a complete circle is formed to suit the diameter
of the ball. We cause similar projections, ribs or teeth to be formed upon the
stationary bed e so that both sides of the ball may be grooved at the same time.
We carry the stationary die plate E in between slides or standards arranged in
any well known manner for supporting like parts of machines for milling or like
purposes. But we prefer to arrange a stem or stalk E' upon the underside of the

page_text: circular die plate E, which stem E¹ we carry in a bearing or bracket F attached
to or carried upon the standard A of the machine. We sometimes secure the stem
within this bracket by means of screw pins or cotters in any well known manner;
or we cause the head of the stem to rest upon the top of the bracket as shown in
Figure 2, and thus to be sufficiently secured without any bolt or screw.
Instead of having a circular cutter and circular path or bed as shown in Figure 1
and Figure 2, we sometimes form grooving projections or cutting ribs upon a
straight horizontal or vertical bed as shown in Figures 3 and 4, the bed G being
grooved to suit the circular shape of the ball; these grooving ribs or cutters
cause to work upon one side of the ball, while the companion block or sliding
cutter H we form out of a horizontal semi-circular grooved sliding die which we
cause to travel across the bottom die plate G.
g we
We arrange slides of any ordinary kind to suit and to retain the sliding cutting
plates G and H and we give motion to the slide by means of eccentrics, connecting
rods K, crank plates L or other well known mechanical reciprocating or vibrating
levers driven from any shaft such as B.
We modify the methods of driving, the size of the die plates and the exact
arrangement of the machine to suit large or small balls that may be required to be
grooved.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination and arrangement of a revolving cutting disc or die together
with a fixed companion die or bed for the purpose of cutting grooves in balls,
substantially as hereinbefore described and as illustrated in Figure 1 and Figure 2
of the accompanying drawings.
2. The construction and arrangement of ball grooving machines having two
semi-circular beds or cutting surfaces, one moving and the other stationary, sub-
stantially as hereinbefore described and as illustrated in Figure 3 and Figure 4 of
the accompanying drawings.
Dated this 9th day of March 1893.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicants.