US1585123A - Bowling pin - Google Patents

Description

day 18 C.J.SHELDON BOWLING PIN Filed August 17 1925 PATENT CARSON J. SHELDON, OF YOUNGSTOWN, OHIO.

BOWLING PIN.

Application filed. August 17, 1825. Serial No. 50,763.

This invention relates to improvements in bowling alley pins, such at ten pins, and duck pins and has for its principal ob ect to provide means for protecting thelower end of the pin so as to render the pin durable.

One of the important objects of the present invention is to provide a bowling pln wherein a protector means is associated with the lower edge of the pin for the purpose of rendering the latter indestructible.

A further object is to provide a bowhng pin of the above mentioned character which includes the depending shank formed on the bottom of the pin, an annular groove arranged in the bottom of the pin around the shank for receiving the upper portion of the inner ring which is fitted and shrunk onto the shank, and an upstanding rib formed on the inner edge of the protector ring which is vulcanized to the inner ring, the groove and the cooperating portions of the ring and rib forming a locking means for the members arranged on the shank portion. j

A further object is to provide a bowling pin of the above mentioned character which is simple in construction, inexpensive, strong and durable and further well adapted to the purpose for which it is designed.

Other objects and advantages of the invention will become apparent during the course of the following description taken in connection with the accompanying draw- 1n the accompanying drawing fo-rmlng a part of this application and in which like numerals designate like parts throughout the several views:

Figure 1 is a sectional view of the inner composite or metallic ring, and the rubber protector ring showing the manner in which the same are arranged on the shank portion of the pin.

Figure 2 is a fragmentary sectional view of the lower end of the bowling pin, the composite or metallic inner ring and the rubber protector ring being removed therefrom and Figure 3 is a sectional view through the composite or metallic inner ring, and the rubber protector ring which is vulcanized to said inner ring.

In the drawing wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 .base of the pin is undercut as illustrated at 2, and extending downwardly therefrom is,

the central shank portion 3. An annular groove 4 is formed in the under cut portion 2 and the same extends around the upper portion of the reduced shank 3 in the manner more clearly illustrated in Figure 2. The shank 3 is circular and is of the same diameter throughout its entire length.

Adapted to fit over the shank 3 isthe inner ring 5 which is formed of any suitable composition or metal. The ring is secured on the shank by first applying an adhesive to the shank and then expanding the ring by heat and forcing the same on, the shank so that the upper portion thereof will be disposed within the innerportion of the annular groove 4. The ring 5 is fitted and shrunk onto the shank 3 of the bowling pin so as to prevent accidental displacement therefrom, it being understood of course that the ring 5 is of the same length as the shank.

Cooperating with the inner compartment or metallic ring 5 is the outer protector ring 6 which is formed of rubber, the rubber protector ring is adapted to be vulcanized to the outer face of the inner composite or metallic ring 5. The rubber protector ring is provided with the downwardly beveled upper face 7. An upwardly extending annular rib 8 is formed on the inner portion of the beveled face 7 adjacent the inner edge of the rubber protector ring 7, and the purpose of this rib will be presently described.

The beveled upper face 8 of the rubber protector ring is adapted to coact with the under cut portion 2 of the pin 1. The upper edge of the rib is substantially flush with the upper edge of the inner composite or metallic ring 5, and this rib also extends into the annular groove 4: in the manner as shown more clearly in Figure 1. When the upper portion of the composite or metallic ring 5 and the rib 8 of the protector ring 6 are disposed within the groove 4, a lock will be pro-v vided for preventing any side pull at the under cut 2 of the protector ring.

The bottom edge of the rubber protector ring 6 is disposed slightly below the bottom edge of the inner composite or metallic ring 5, and the inner lower portion of the outer ring 6 is beveled as indicated at 9.

The lower end of the bowling pin is provided with the usual countersunk opening 10, in the central portion thereof for cooper ation with the usual pin setter or spotter mechanism.

The use of a rubber protector ring of the character above described will eliminate the sharp corners on the lower end of a bowling pin as well as prevent the destruction of the pin or the chipping of the lower edge thereof when the same comes in contact with another pin, or strikes the wall of a bowling alley.

The simplicity in which my improved protector is constructed enables the same to be readily and easily attached to a bowling pin, and will not in any way interfere with the operation of the pin spotting mechanism now generally in use on bowling alleys.

lVhile I have shown the preferred embodiment of the invention it is to be understood that minor changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention and the scope of the appended claims.

Having thus described the invention, what I claim as new is 1. A bowling pin having a central reduced shank portion formed on the lower end thereof, the bottom of the pin having an annular groove extending around the shank portion, an inner ring fitted on the reduced shank portion, the upper portion of said inner ring extending into the annular groove, and an outer ring fitted on the inner ring, and an annular extending rib formed on the inner edge of the outer ring and extending upwardly into said annular groove.

2. A bowling pin having its lower extremity under cut, a central shank portion depending therefrom, said under cut portion being provided with an annular groove which extends around the shank portion, an inner ring fitted on the shank portion, the upper portion of said inner ring extending into the annular groove, a rubber protector ring vulcanized onto said inner ring, the upper face of the rubber protector ring being beveled downwardly toward the center for engagement with the undercut portion of the pin, and an upstanding annular rib formed on the inner portion of the beveled face of the rubber protector ring, said rib extending upwardly into the annular groove.

3. A bowling pin having a central reduced shank portion formed on the lower end thereof, the bottom of the pin having an annular groove extending around the shank portion, an inner ring fitted and shrunk onto the reduced shank portion, the upper portion of said inner ring extending into the annular groove, a rubber protector ring vulcanized onto the inner ring, and an annular rib extending upwardly from the inner edge of the rubber protector ring into said annular groove.

In testimony whereof I afiix my signature.

CARSON J. SHELDON.

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