US3065548A - Grip pattern bowling ball - Google Patents
Grip pattern bowling ball Download PDFInfo
- Publication number
- US3065548A US3065548A US112812A US11281261A US3065548A US 3065548 A US3065548 A US 3065548A US 112812 A US112812 A US 112812A US 11281261 A US11281261 A US 11281261A US 3065548 A US3065548 A US 3065548A
- Authority
- US
- United States
- Prior art keywords
- ball
- tube
- screw
- washer
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0023—Measuring of sport goods, e.g. bowling accessories, golfclubs, game balls
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0001—Balls with finger holes, e.g. for bowling
- A63B37/0002—Arrangements for adjusting, improving or measuring the grip, i.e. location, size, orientation or the like of finger holes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Description
Nov.27, 1962 J. PRATO, JR 3,065,548 GRIP PATTERN BOWLING BALL Filed May 26, 1961 2 Sheets-Sheet 1 INVEN /view.
A rralemsrs Nov. 27, 1962 J. PRATO, JR 3,065,548
GRIP PATTERN BOWLING BALL Filed May 26, 1961 2 Sheets-Sheet 2 IN VEN TOR.
4 rm/ewarr 3,065,548 GRIP PATTERN BOWLING BALL John Prato, Jr., 8024 Alder Ave, Fontana, Calif. Filed May 26, 1961, Ser. No. 112,812 4 Claims. (Cl. 33-174) Unite This invention relates to bowling balls in general, and in particular to a ball providing a variety of finger hole sizes and spacing for determination ofindividual grips. The problem of attaining a proper grip is related basically to size and shape of bowlers hands and fingers, but also tion, which involves a minimum amount of apparatus, at-
tended with simplicity of structure.
It is therefore a general object of the invention to provide an efficient and simplified apparatus for determining the grip of a bowler. More particularly, it is an object to provide a pattern ball for determining grip, which is adjustable to present a variety of spans and hole sizes. In still greater particular it is an object to provide a trial ball which is expandible to vary finger span, and rotatable to present different combinations of hole sizes. The objects also include providing a pattern ball which is simple in structure, easy and certain of operation, readily manufactured, and low in cost.
These and other objects, which will be apparent to those skilled in the art, are attained by the present invention, which may be briefly described as comprising two herni-spherical components, having a diametrically disposed shaft or spindle affording relative rotation of the components, to present different combinations of finger holes, and also relative, sliding movement of the components, axially, to vary the finger span.
For a more detailed description of the invention, reference is made to the following specification, as illustrated in the drawings, in which:
FIGURE 1 is a perspective view of the pattern ball, with rotation axis tilted to show the adjusting screw and lock nut.
FIGURE 2 is a front elevational view, enlarged, of the ball, broken away, in part, along a plane through the rotation axis.
FIGURE 3 is a view similar to FIGURE 2., showing the ball components in expanded position of adjustment.
FIGURE 4 is a sectional view of a detail, taken on the line 4--4 of FIGURE 3.
FIGURE 5 is a sectional view of a detail, taken along the line 5-5 of FIGURE 3.
FIGURE 6 is a perspective view of the base plate in the ball cavity containing the adjusting screw. 4
FIGURE 7 is a perspective view of the washer which communicates lift to the base plate of FIGURE 6, and
FIGURE 8 is a sectional view, axially of the adjusting screw, taken on the line 8-8 of FIGURE 2.
Referring to the drawings by characters of reference, there is shown a spherical ball in two, separable parts, comprising a hemisphere 10, with a variety of thumb hole bores 12 of differing depth, diameter and coordinate position, and a hemisphere 14 with a variety of finger hole bores 16 also of differing sizes and locations, but which are also arranged in pairs on latitude parallels, so that fitting may be accomplished for either a two-fingered or a three-fingered ball arrangement.
threaded or otherwise secured in the top opening of tube 20, and having a central bore in which the screw shank 52 is journaled. T o anchor the screw 48 against all sliding movement with respect to cap 56, shank portion 52 carries another pin 58, located beneath a washer 60 which contacts the underside of cap 56. A hand-operated nut 62 of scalloped periphery, is carried on the external threads 38 of tube 20, and serves to lock the ball partsin positions of axial adjustment.
It will be seen that axial adjustment of the parts is accomplished by turning screw 48 in its journal mounting in cap 56 by twisting wing nut 50. Through the threaded connection this causes relative movement of lift washer 42 along screw 48, the tube 20, and hence screw 48, being anchored to ball half 10. In any working position, the lock nut 62 is tight against plate 30, and ball half 14 is therefore held between nut 62 and washer 42. This not only holds the parts in adjusted position but provides a locking action in the threads of nut 62 and washer 42, by oppositely applied forces. To change the adjustment, the assemblage is first loosened by backing ofi nut 62. If further expansion is desired, the lock nut 62 is moved outward an appropriate distance, and the screw 48 is rotated to bring plate 30 into tight contact with the lock, nut 62. The final tightening action may be delivered by either nut 62 or screw 48, and since these are in opposite directions, final adjustment of position can be made to a fine degree of precision.
In making a selection of grip, it will be convenient to select the proper thumb hole, and the proper finger hole or pair of holes, since this will, in general, involve no adjustment of the ball, and to then loosen the lock nut, and rotate the ball halves until the selected holes are aligned on a common meridian. If adjustment of the hole span between thumb and finger holes is necessary, this can be accomplished in the manner aforesaid.
In order to extend the range of usefulness of the apparatus, further hemispheres with additional arrays and sizes of gripping holes may be provided, lower half 10 being removable, for replacement, by the simple expedient of loosening the set screw 22. The upper half 14 may be lifted out, after removal of certain parts, or replacement parts may be each provided with the tube 20.
While a certain, preferred embodiment has been shown and described, modifications may nevertheless become apparent to those skilled in the art, in the light of this disclosure, and the invention should not, therefore, 1 be deemed as limited, except insofar as shall be reasonab y infer-red from the spirit and scope of the appended claims.
What is claimed is:
1. A grip-deterrnining ball for howlers comprising a in the threaded portion, a cap on the outer end of said tube, a screw having a portion journaled in said cap and a threaded portion interiorly of said tube, means holding said screw against movement axially of said tube, a Wing head on said screw externally of said cap, and a second part having an axial "bore receiving said tube, and said latter bore having a counterbore opening through the spherical surface, a first washer having internal threads receiving said screw and arcuate slots receiving the portions of the threaded end of the tube between the slots thereof, a second washer secured in said counterbore in overlying relation to said first washenand alock nut on the threaded portion of said tube, and adapted to contact said second Washer.
2. A grip-determining ball for'bowlers comprising a pair of complementary, hemispherical parts comprising a first part having a blind, axial bore, a tube in said bore extending beyond the equatorial plane face ofsaid first part, and having a threaded portion at its outer end with longitudinal end slots defining a pair of prongs, 'an internally threaded washer having arcuate openings receiving said prongs, a thumb screwthreaded in said washer, a cap on the outer end of said tube journaling said screw rneans to hold said screw against movement axially of said tube, a second part having an axial bore opening in its equatorial plane face and having a counterbore opening in its spherical surface, a plate secured in said counterbor in overlying relation to said washer, and a lock nut received on thethreaded end of said tube and adapted to contact said plate.
3 A grip determining ball for bowlers comprising a pair of complementary, hemispherical parts comprising a first part having a tube extending from its equatorial plane face, and a second part having an axialbore with a counterbore opening into the spherical surface, said tube having a threaded outer end with longitudinal slots defining a pair of prongs, a thumb screw journaled for rotation about the axis of said tube, means to hold said screw against movement axiallyof said tube, a washer threadedly' re ceiving said screw and having openings receiving said prongs, rneans'securing said washer in the saidcounterportion at its outer end longitudinally slotted to provide a plurality of prongs, an internally threaded washer hav- 7 ing openings receiving said prongs, a screw journaled in the outer end of said spindle and threadedly engaging said Washer, means to holdsaid screw against movement axial- 1y of saidspindle and a second part having an opening receiving said spindle with the outer end exposed, exteriorly of the ball, means anchoring said washer to said second part, and a nut on said threaded portion limiting the position'of adjustment of said washer along said screw, and forming a lock means therefor.
References Cited in the file of this patent 7 UNITED STATES PATENTS Reitsma Nov. 2, 1948
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US112812A US3065548A (en) | 1961-05-26 | 1961-05-26 | Grip pattern bowling ball |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US112812A US3065548A (en) | 1961-05-26 | 1961-05-26 | Grip pattern bowling ball |
Publications (1)
Publication Number | Publication Date |
---|---|
US3065548A true US3065548A (en) | 1962-11-27 |
Family
ID=22345950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US112812A Expired - Lifetime US3065548A (en) | 1961-05-26 | 1961-05-26 | Grip pattern bowling ball |
Country Status (1)
Country | Link |
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US (1) | US3065548A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1001433A (en) * | 1911-03-29 | 1911-08-22 | Hugo F Olson | Beam-compass. |
US2221938A (en) * | 1940-03-28 | 1940-11-19 | Joseph A Barry | Bowling ball grip measuring device |
US2453036A (en) * | 1947-03-06 | 1948-11-02 | Jack G Hunter | Grip measuring ball for bowlers |
-
1961
- 1961-05-26 US US112812A patent/US3065548A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1001433A (en) * | 1911-03-29 | 1911-08-22 | Hugo F Olson | Beam-compass. |
US2221938A (en) * | 1940-03-28 | 1940-11-19 | Joseph A Barry | Bowling ball grip measuring device |
US2453036A (en) * | 1947-03-06 | 1948-11-02 | Jack G Hunter | Grip measuring ball for bowlers |
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