US2199310A

US2199310A - Bowling pin

Info

Publication number: US2199310A
Application number: US233634A
Authority: US
Inventors: Earle W Hartley
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-10-06
Filing date: 1938-10-06
Publication date: 1940-04-30
Anticipated expiration: 1957-04-30

Description

, E. W. HARTLEY BOWLING PIN Filed oct.` 6, 1938l April 30 194o. y

zisheets-shee` x April 3o, 1940. L E. w. HARTLE'Y.-

BowLINePIN 'Filed oct. e, 1938 2 Sheets-Shes?l 2 Patented Apr. 30, 1940 PATENT OFFICE Earle W. Hartley, Waterbury, Conn.`

Application October 6,

19 Claims.

This invention relates to bowling pins and is an improvement over the bowling pin embodied in the co-pending application of myself and Frank O. German, Serial Number 164,044, filed Septem- I ber 15, 1937.

An object of this invention is to lprovide a hollow bowling pin which is formed of composition material such as a` thermoplastic composition or product such as cellulose acetate.

l. Another object of this invention is to provide a bowling pin formed of composition material which has embedded therein a reinforcing mem'- ber so as to reinforce the pin at substantially the point of contact of the pin with a ball.

Another object of this invention isto provide a composition bowling pin which is of hollow construction, being formed of material which will not fracture under the impact of a ball there-` with. go A further object of this invention is to provide in a composition bowling pin la metallic socket member in the bottom thereof which is adapted to be engaged by the well known pin spotting devices so that the bottom of the pin will not be injured during the setting up operation in order that the pin-will at all times be correctly positioned on the surface of the alley irrespective of the age of the pin.

A still further object of this invention is to lo provide in a composition bowling pin a combined metal socket and pin balancing member which is adapted to provide not only the proper weight to the pin but also to balance the pin, particularly at the base thereof.

A further object of this invention is to provide a composition pin which may be molded in complementary one-half sections so that the pin may be assembled and the one-half sections adhesively secured together by an adhesive con- 40 taining a phenol product in order that the meeting edges of the sections will amalgamate and provide an unbreakable hollow body.

To the foregoing objects and to others which may hereinafter appear, the invention consists u of the novel construction, combination'and arrangement of parts as will be more specifically referred to and `as illustrated-in the accompanying drawings, wherein is shown embodiments of the.

invention, but it is tovb'e understood that'changes, variations and modifications may be resorted to which fall within the scope o f the invention as claimed. v

In the drawings: Figure 1 is a detail side elevation of a bowling 193s, sei-lei No. 233,634

(o1. 21a-sz) pin constructed according to an embodiment of this invention,

Figure 2 is a vertical section taken through the center of the pin,

Figure 3 is a transverse section taken on the g line 3-3 of Figure 2,

Figure 4 is a fragmentary view in elevation of the lower one-half portion of the pin,

Figure 5 is a detail side elevation of the metal socket and balancing member,

Figure 6 is a detail side elevation partly broken away and in section of a modified form of this P111.'

Figure 'l is a sectional View taken on the line 1-1 of-Figure 6, and

Figure 8 is a fragmentary perspective view of a reinforced thermoplastic sheet of material which may be used to produce bowling pins or like articles.

Referring to the drawings, and ilrstto Flg ures l to 5 inclusive, the character P designates generally a bowling pin which is formed of complementary one-half sections I0 and II. These sections III and II are identical in construction and are adapted to be adhesively secured together at-their abutting edges as at I3 by an adhesive having a composition such as to substantially amalgamate the two sections I0 and I I and form a substantially integral hollow body. The body sections I0 and II are each providedfwith a neck portion I2 and an enlarged or'bulged body portion I4 terminating in a base I5. The base I5 is relatively thicker than the body portion I4 and the neck portion I2, and each pin section I0 and II is provided in the base portion thereof with a half round bore I6 which is concentric to the axial center of the pin. A rib I'I is formed in the socket receiving portion I6 of each section Ill and II and when thetwo sections I0 and II are secured together, a round bore is formed having a key I1 intermediate the inner and outer ends of the bore formed by the semi-cylinf drical portions I6.

In the molding or casting of the sections I0 and II an outer reinforcing member I% is embedded in the material while the material is plastic and this reinforcing material I8 is positioned at ai" point termed the belly of the pin and extends'-l above and below the greatest diameter vofthe body Il. An inner reinforcing fabric I! is positioned inwardly of the outer reinforcing member I8 andv is substantially of the same width as the outer member I8. These reinforcing'memt bers I8 and lI9 are preferably constructed of fabric which is of such a nature that the composiu ,Din

tion material forming the pin will impregnate the fabric so that the fabric members i3 and I9 will prevent chipping of the material forming the The composition material forming this pin has v been found to initially fracture on the inside of the pin due to the flexing of the body under impact with a ball or with another pin and the reinforcing members I8 and I9, particularly the inner reinforcing member I9 will prolong the life of the pin due to the fact that the reinforcing members I8 and I9 will hold the material together even if the material should become fractured.

A combined socket and pin balancing member 20 is adapted to be inserted in the opening formed by the semi-cylindrical portions I8 and this socket member 20 comprises a cylindrical body 2| formed of metal which is provided with an axially disposed socket 22. The socket 22 opens through the lower end of the body member 2| and the bore 22 terminates at its lower end in a rounded or bevelled portion 23. The socket member 20.

is provided at a point inwardly from its lower end with an annular groove 24 which engages the rib portions ll of the two body members I and Il. This groove snugly receives the rib I1 and holds the socket member against movement axially of the pin P. The socket member 20 as shown in Figure 2 has a length substantially greater than the thickness of the bottom wall 'I5 of the pin so that a considerable portion of this socket member 20 will extend into the interior of the pin when it is assembled by adhesively securing the pin sections l0 and together.

In Figures 6 and '7. there is shown a modified form of this bowling pin wherein the pin is constructed of complementary sections lll*i and I I. These sections I0 and ||n are each provided with a neck portion I2 and a body portion |48'. The pin sections I0 and Il* are adhesively secured together as at i3 and the bottom wall portions Iiil are provided with a bore I6 in which a socket member 20 similar to the socket 20 is mounted. The socket member 20 comprises a cylindrical member 2|a having a groove 248 in which is positioned the rib |15.

In this modied form of bowling pin, the two pin sections I0 and Il* are each provided at the belly or larger diameter portion thereof with a reinforcing fabric` I. In this instance, only one layer of fabric is provided but it will be understood that one or more layers of fabric may be embedded in the body sections l0 and I I.

A disc-shaped reinforcing or bracing member 25 is positioned within the interior of the pin being adhesively secured at its peripheral edge 26 to the inner surface of the two pin sections I0 and l I. The bracing member 25 is preferably provided at its center with an opening 21 and a plurality of holes 28 are positioned vabout the axial center of the bracing member 25 and about the central opening 21. The use of this bracing member provides a more solid pin structure at the point of impact between the pin and a ball or other pin, and in this manner the pin will not tend to flex as greatly under impact as where the bracing member 25is eliminated.

This pin may be constructed of substantially transparent material, if desired, although in practice the pins will be constructed of composition material which in color, at least, will simulate the natural color of the wooden pins.

Y Bowling pins have been constructed according to this invention and have been placed in actual use and found to be capable of withstanding the hard usage to which bowling pins are subjected and at the same time to retain their original or perfect round configuration.

Wooden bowling pins are not capable of retaincondition until the pin has been fractured to aA point where it is no longer usable. This bowling pin will at all times present a new pin construction so that a higher score will be possible with the use of a pin of this type and this pin will also considerably reduce the operating expenses of the bowling alley due to the fact that the pin has a very much longer lifeI than an ordinary wooden pin.

Heretofore there has never been a composition bowling pin which has actually found its way into service although many such pins have been proposed, as evidenced by the showings in the prior art; One of the reasons these pins have not found their way into actual use is because they have not been formed of the right composition and construction. 'Ihe applicant has determined this through numerous tests under actual playing conditions extending over a long period of time and the present pin has been found to be the only solution to the problem having successfully withstood long test and usage. This is due in part to the composition of the pin and in part to the construction as herein disclosed, more particularly the fabric reinforcement of a woven fibrous material. Tests have been made with metallic reinforcements but these have indicated that the brous material is the only real satisfactory reinforcement, because only an improper bond can be established between a metallic reinforcement and the composition of which the pin is made, whereas the fibrous material becomes thoroughly impregnated and practically integral with the composition of which the pin is made. The pin is made by either of the well known molding processes, such as a pressure molding or the so-called injection molding. A type of material which has been found satisfactory for the composition is that known in the trade as Tenite and is embodied in Patent No. 2,048,686.

In Figure 8 there is disclosed a thermoplastic sheet formed of

laminated sheet members

29, 30 and 3|. These laminations are constructed of thermoplastic composition and are adhesively secured together at their confronting faces by an adhesive containing a composition such as to substantially form an integral laminated sheet structure. In the securing of the sheet members 29 and 30 together a fibrous fabric member 32 is positioned therebetween and is adapted to be impregnated with the cementitious material so that when the adhesive has dried the composition thereof will be impregnated in the bres of the fabric 32. A second fabric 33 is interposed between the lamination 30 and the lamination 3| and is adapted to be secured therebetween by the adhesive used to secure the two

laminations

30 and 3| together in order that the adhesive will impregnato the bres of the Woven fibrous fabric 30 in addition toiirmly holding the two

laminations

30 and 3| together.

It will also be understood that the woven

fibrous members

32 and 3 3 may be embedded in the sheet comprising the laminations I9, lil and 3| at the time the several sheets are in a plastic state so that under such conditions it will not be necessary to use an adhesive in order to secure the several laminations together and to secure the woven fibrous sheet members 30 and 3l within-the laminated product.

The bowling pin hereinbefore disclosed may be formed entirely out of laminated material similar to that shown in Figure 8 which material may be formed into the desired conguration by die stamping under heat, and if desired the sheet comprising the `laminations 29, 30 and 3i may also be used for other products which are sub Jected to impacts which would otherwise breakor crack either glass, wood or other similar material.

What I claim is: l

1. A bowling pin comprising a hollow body and a woven reinforcing member embedded in a wall of said body.

2. A bowling pin comprising a hollow body, a pair of spaced reticulated reinforcing bands embedded in a wall of said body, and a metal socket carried by the lower portion of said body, said socket opening through the bottom of said body.

3. A bowling pin comprising a pair of composition body members adhesively secured together, a fibrous woven band embedded in each member intermediate the ends thereof, a metallic socket member, and means carried by said body members and formed in said socket member for holding said socket member against movement longitudinally of said body members.

4. A composition bowling pin comprising a hollow body, a reinforcing band formed of fabric material embedded in a wall of said body, and a combined socket and balancing member carried by said body.

5. A bowling -pin comprising a body having an opening in the bottom portion thereof, said body also having an annular rib intermediate the ends of said opening, and a cylindrical socket member snugly engaging in said opening, said socket member having an annular groove to snugly receive` said rib to thereby hold said socket member against movement lengthwise' of said body.

6. A bowlingpin comprising a hollow body formed of complementary half round sections,

each of said sections having a senil-cylindrical socket receiving recess at one end thereof, a

woven fibrous band embedded in a wall of each section intermediate the ends thereof, said recesses confronting each other and forming acylindrical opening, and a socket member snugly engaging in said recesses, said recesses and said socket member being so formed as to hold said socket member against endwise movement.

'7. A bowling pin comprising a hollow body formed of complementary sections adhesively secured together, each of said sections having a semi-cylindrical recess, an arcuate rib integral with each section and projecting into a recess, and a cylindrical socket member snugly engaging in said recesses and having an annular groove to receive said ribs, said ribs holding said socket member against longitudinal movement relative to said body in opposite directions.

8. A bowling pin comprising a hollow body formed of complementary sections adhesively secured together, and a brous woven reinforcing band embedded in a wall of each section intermediate the ends thereof.

9. A bowling pin comprising a hollow body formed of complementary sections adhesively secured together, a fibrous woven reinforcing band embedded in a wall of each section intermediate the ends thereof, and a metallic socket member interposed between said sections atl an end thereof.

. 10. A bowling pin comprising a composition body, a brous woven reinforcing band embedded in a wall of said body, and a metallic socket and balancing member carried by said body.

of said member being iiush with the adjacent end' of said body.

12. A bowling pin comprising a `hollow body and a' woven fibrous fabric reinforcing member embedded in a wall of said body.

13. A composition bowlingy pin formed of a thermo-plastic composition and comprising a pair of complementary half sections adapted to be integrally bonded together, and a fibrous woven band embedded in each of said sections.

14. A composition bowling pin formed of a thermo-plastic composition and comprising a pair of complementary. half sections adapted to be integrally bonded together, each of said sections having a half round recess adjacent one end thereof, said recesses confronting each other to thereby provide a roundopening at one end of the pin, a concave rib in each recess intermediate the ends thereof, and a grooved metallic socket member snugly engaging in said opening, said ribs engaging in the groove of said socket member. 't

15. The process of constructing a composition bowling pin which includes forming a pair of complementary half sections, embedding a fabric reinforcing member in each of said sections, and bonding the sections together.

16. The process of constructing a composition bowling pin which includes forming a pair of complementary half sections, embedding a fabric reinforcing member in each of said sections, bonding the sections together and interposing a nonwearable socket between said sections at one end thereof.

17. A bowling pin comprising a hollow composition body having a fiat bottom portion of greater thickness than the remaining portion thereof, said bottom portion being formed with an axial opening, and a tubular combined balancing and outwardly opening socket forming member of a material different from the material forming said body, flush at its outer end with the outer face and extending inwardly from the inner face of said bottom portion, the wall of said opening being formed with an annular groove, saidv memberbeing formed circumferentially of its outer periphery with an annular rib, said rib seated in said groove for securing said member to said bottom.

18. A bowling pin comprising a hollow compov-sition body having a flat bottom portion of greater terial different from the material forming said u 4 alessio ber being formed circumierentially of its outerI Y periphery with an annular rib, said rib seated in said groove for securing said member to said bottom, and a pair oi spaced reticulated reinforcing bands embedded in the said remaining 10 portion oi said body.

19. A bowling pin comprising a molded plastic body having an opening in the bottom portion thereof, said body' also having an annular rib intermediate the ends of said opening, and a cylindrical socket member snugly engaging in said opening, said socket member having an annular groove to snugly receive said rib to thereby hold said socket member against movement lengthwise of said body.

EARLE W. 104