US1536606A - Bowling pin - Google Patents

Description

Patented May 5, 1925.`

vNrrEo stares PArnuroFFlcE.

JOSEPH w.` Brsrror AivnJEssE o. iaArrEson, or nnsirneen, MICHIGAN, assumons TD THE BRUNSVJlCK--BALKE-COLLENDEB GOLTANY, Oli CHICAGO, ILLINOS, A COR- BOWLING PIN.

j Application ledkJune 5,

To all whom t may concern."

Be it known that we, JosErir lW. BISHOP and JEssE O.' MATTEsoN, citizens of the United States, residing at Muskegon, in the county of Muskegon and State of Michigan, have invented certain new and useful linn `provementsin Bowling Pins, of which the following is a specification.

This invention relates to bowling pins and has for its object to increase the strength and durability of bowling pins of that class which comprise a hollow metal core enclosed `within a composition covering.

" The invention also has for its object to `provide means for reinforcing and strengthening thecovering to make it more durable and to hold the partsthereof together in case of fracture.

And further object of the inventionis to provide a cushion between the covering andthe core which may yield suiiiciently to assist in resisting the blows of the ball and the shocks occasioned when-the pin falls in the pit of arbowling alley.

In the accompanying drawings illustrating a selected embodiment of the invention Fig. l is an elevation of the core;

Fig. 2 is an elevation of a pin with the covering broken away to disclose a part of the core;

F ig. Slis a transverse sectional view on theline 3M?) of Fig. 2;

Fig. 4f is a transverse sectional view showing a cushion interposed between the coveringV and the core. y

Referring to the drawings the core 5 may be cast but it is preferably ystamped tor pressed out of sheet metal in a plurality of `members which are secured together by welds 6 or other suitable means to lform a core of suitable size for receiving the composition covering 7 to produce a pin of regulation size, shape and weight. The composition may vary but we prefer to employ a hard rubber compound having small pieces of wood in `the form of little sticks or splinters thoroughly incorporated therewith, as indicated in Fig. 2. This composition is j vulcanized on the core and in order to insure that it will be secured rigidly and firmly to the core we prefer to provide the core with openings 8 and outward projections 9 `at the edges of t-he openings to be embedded anchoring the covering to ball by securing a transverse brace l0 in a 1 suitable manner within the core about inidway betweenthe top and bottom of the belly of the pin.

live have found that the composition here-` tofore referred to will sta-nd up remarkably if well under 'the roughusage and thev severe blows to which bowling pins are subjected but it is also possible that the composition n'iayfracture in actual use and under condi-` tionswhichrender it impossible to dispense with' theuse of the pin; 'To prevent the covering' from falling away from the core, in eventof fracture, andto enable the pin to be continued' in use for a while atleast, we provide a reinforcement for the covering around the belly of the pin where it is subjected to the severest blows. This reinforcement may be in the form of a wire l1 which can be conveniently arranged for em` bedment in the covering by anchoring one end, :as 12, in an opening in the core and then winding the core spirally around the belly and anchoring its other end 13 in another opening. `We have not found it necessary to exercise particular care in winding the wire but we deem it desirable to `have it taut instead of loose, at least sutliciently to preserve its general spiral shape. The composition covering is applied to the core and vulcanized thereon and consequently embeds not only theprojections 9 but also the reinforcing wire therein so that in event that the covering is fractured under the impact of an especially severe blow the fractured parts of the covering will be held together by the reinforce and strengthening wire so that the pin may be continued in service for a while. This reinforcement also will prevent fractured parts of the covering from flying about and possibly causing injury or doing damage.

lNe may also apply a light covering of soft rubber 14 on the core before applying the covering 7, if desired. This light rubber will provide a yielding cushion for the outer covering and to some extent it will also tend to hold the parts of the covering together in case of fracture. The light rubber cushion may be used with the holes, the projections and the reinforce or any of these elements.

Te are aware that other material than wire may be used for the reinforcen'ient; that the reinforcement may be arranged with relation to the core for embedment in thecovering in ways somewhat differently from that shown and described, and that other changes may be made in the practical use of our invention without departing from the spirit or sacrificing the advantages thereof and we reserve the right to make all such changes as fairly fall within the scope of the following claims:

le cla-im:

l. A bowling pin comprising a core, a composition covering enclosing the core, and a metal reinforce embedded in said covering.

2. A bowling pin comprising a core, a

composition covering enclosing the core, and a reinforce surro-unding the core and anchored thereto and embedded in the cover- `ng.

A bowling pin comprising` a core, a composition covering enclosing the core, and a reinforce spirally disposed about the core and embedded in the covering.

4. A bowling pin comprising a core, a composition covering enclosing the core, and

a wire reinforce spirally disposed about the core and embedded in the covering.

5. A bowling pin comprising a core, a composition covering enclosing the core, and a wire reinforce disposed about the core and embedded in the covering at the belly of the 6. A bowling pin comprising a hollow metal core, a. wire reinforce wound about the core and having its ends engaged therewith, and a composition covering embedding the reinforce and enclosing the core.

7. A bowling pin comprising a hollow metal core having openings therein and out ward projections, a brace within the core, a reinforce around the core and a composition covering embedding said projections and reinforce and enclosing the core.

8. A bowling pin having a hollow metal core, a light covering of soft rubber on the core, and an outer composition covering of hard rubber compound and small wood sticks or splinters incorporated therewith, said coverings being vulcanized to each other and on thel core.

9. A bowling pin comprising a hollow met-al core, a reinforce on the core, a soft rubber covering on the core, and a hard rubber covering on said soft rubber covering, said coverings being vulcanized to each other and to the core and reinforce.

JOSEPH W. BISHOP. JESSE O. MATTESON.

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