US1376778A - Tennis-ball and process of making same - Google Patents
Tennis-ball and process of making same Download PDFInfo
- Publication number
- US1376778A US1376778A US315508A US31550819A US1376778A US 1376778 A US1376778 A US 1376778A US 315508 A US315508 A US 315508A US 31550819 A US31550819 A US 31550819A US 1376778 A US1376778 A US 1376778A
- Authority
- US
- United States
- Prior art keywords
- ball
- seam
- tennis
- depressions
- fabric
- 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
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/04—Spherical articles, e.g. balls
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B45/00—Apparatus or methods for manufacturing balls
- A63B45/02—Marking of balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
- Y10T156/103—Encasing or enveloping the configured lamina
Definitions
- My invention has 'for one of its objects to protect the seam of the fabric cover of a tennis ball.
- the fabric cover is compressed at separated points along the seam, and thus permanent depressions are provided alternating with portions of the full thickness of the cover so that the 'depressed areas are protected from the strokes of the racket.
- sealing areas which will keep the Patented May 3, 1921.
- the depressed portions of the fabric also perform another important function in providing protected sealing means for uniting the cover with the rubber center.
- the depressions include portions of the edges at the seam. In the particular construction shown these depressions cross the seam as shown at l and preferably they are bisected by the seam so that equal areas .of the de ressed portions will lie on opposite sides o the seam.
- a tennis ball having a hollow rubber center with a fabric cover,'said fabric cover applied directly to the rubber having depressions molded in its surface, substantially as described.
- a tennis ball having a hollow rubber center with a fabric cover, said fabric cover applied directly to the rubber having spaced apart depressions molded in its outer surface along the seam, substantially ⁇ as described.
- a tennis ball having a hollow rubber center with a fabric cover, saidfabric cover applied directly to the rubber having depressions molded in its outer surface spaced apart along the seam, said depressions extending l.across the seam, substantially as described.
- a tennis ball having a hollow rubber center with a fabric cover cemented thereon and with depressions molded in the fabric cover, substantially as described.
- a tennis ball having a hollow rubber center with a fabric cover cemented thereon, and with depressions molded in said fabric cover spaced apart along the cemented seam, substantially as described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Description
W. I. ORR.
IENNIS BALL AND PROCESS oF MAKING SAME.
APPLICATION FILED AUG|51 I9I9.
Patented May 3, 1921.
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UNITED STATES PATENT orricr..
WILLIAM J'. ORR, 0F GHICOPEE, MASSACHUSETTS, ASSIGNOR TO A. G. SPALDING BROS., OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.
TENNIS-BALL AND PROCESS 0F MAKING SAME.
To all whom it may concern.'
Be it known that I, WILLIAM J. ORB, a citizen of the United States, resident of Chicopee, Massachusetts, have invented certain new and useful Improvements in Tennis.-
Balls and Processes of Making Same, of which the following is a specification.
My invention has 'for one of its objects to protect the seam of the fabric cover of a tennis ball.
As is well known to tennis players, the edges of the seam sometimes open and curl upafter the ball has been in play and this interferes with the Hight of the ball and renders it unfit for accuracy in play.
With a sewed seam the impact of the racket during hard play is apt to cause the seam to open as stated before. With my improvement the cover can be cemented in place on the rubber center, no sewing ofthe seam being required, and the seam will be protected against damage and the life of the ball will be increased.
In carrying out the invention the fabric cover is compressed at separated points along the seam, and thus permanent depressions are provided alternating with portions of the full thickness of the cover so that the 'depressed areas are protected from the strokes of the racket.
As these depressed portions in the aggregate extend along a considerable length of the seam, say one-half or more and as they are protected by the adjacent raised portion or portions of the full diameter, the edge of the seam along these depressions forms a uniting means of considerable extent and which is protected from the strokes of the racket and from direct contact with the ground, and thus provides what may Specication of Letters Patent.
bev termed sealing areas which will keep the Patented May 3, 1921.
Application led August 5, 1919. Serial No. 315,508.
new, has a nap or loose fiber surface which acts to control the flight of the ball. In
play, however, this nap soon wears off and i this controlling factor then is lost.
With my improvement, however, the function of theiibrous surface so far as controlling the flight of the ball is concerned, will still be performed after the ball becomes worn because of the presence of depressions 8 inthe surface of the fabric cover, said depressions being distributed over the entire surface of the ball in order to get this controlling effect.
The depressed portions of the fabric also perform another important function in providing protected sealing means for uniting the cover with the rubber center. For this purpose the depressions include portions of the edges at the seam. In the particular construction shown these depressions cross the seam as shown at l and preferably they are bisected by the seam so that equal areas .of the de ressed portions will lie on opposite sides o the seam. These depressed portions will be protected from frictional contact of the racket and of the ground because they are surrounded by portions of .the cover of the full thickness and these will in affect protect the sealing areas at separated points along the seam and thus a cemented seam may be employed and a-durable ball provided, thus dispensing with the sewing operation and also dispensing with the liability of the sewed seam to open up because of the breaking of the thread due to the cutting action of the racket or contact with the ground. Y e
I am aware, of course, that golf ballsare provided with dimples or pit-s to control the flight, but so far as I know, a. fabric covered tennis ball having depressions in the fabric surface has never been proposed heretofore.
In order to provide the ball of the construction above described having the rubber center of substantially ordinary form and a. fabric cover with separated depressed areas in its fabric surface, a `special course of manufacture is employed and in carrying out this special method, the rubber center is first molded in a smooth spherical shape. This center is then covered with cement. The felt cover is died .out of proper shape and is likewise covered on the inside with cement and placed in position on the rubber center. rThe ball is then placed ina two piece mold which has a negative of the surface markin s desired to be provided in the felt cover. he felt being of standard thick-- ness greater compression is obtained over certain parts of the fabric by reason of the protruding surface or projections on the mold, and in this way the felt is permanently compressed to form the depressed areas. f
I claim asmy invention:
1. A tennis ball having a hollow rubber center with a fabric cover,'said fabric cover applied directly to the rubber having depressions molded in its surface, substantially as described. f
2. A tennis ball having a hollow rubber center with a fabric cover, said fabric cover applied directly to the rubber having spaced apart depressions molded in its outer surface along the seam, substantially `as described.
3. A tennis ball havinga hollow rubber center with a fabric cover, saidfabric cover applied directly to the rubber having depressions molded in its outer surface spaced apart along the seam, said depressions extending l.across the seam, substantially as described.
lraised portions, substantially as described.
'5. A tennis ball having a hollow rubber center with a fabric cover cemented thereon and with depressions molded in the fabric cover, substantially as described.
6. A tennis ball having a hollow rubber center with a fabric cover cemented thereon, and with depressions molded in said fabric cover spaced apart along the cemented seam, substantially as described.
7 The herein described method of making a tennis ball consisting in covering a rubber center'with fabric cemented thereto and then subjecting the ball to a molding action within a mold having projections on its interior surface to compress the fabric cover at separated areas, substantially as described.
WILLIAM J. oRR.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US315508A US1376778A (en) | 1919-08-05 | 1919-08-05 | Tennis-ball and process of making same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US315508A US1376778A (en) | 1919-08-05 | 1919-08-05 | Tennis-ball and process of making same |
Publications (1)
Publication Number | Publication Date |
---|---|
US1376778A true US1376778A (en) | 1921-05-03 |
Family
ID=23224748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US315508A Expired - Lifetime US1376778A (en) | 1919-08-05 | 1919-08-05 | Tennis-ball and process of making same |
Country Status (1)
Country | Link |
---|---|
US (1) | US1376778A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868288A (en) * | 1972-07-03 | 1975-02-25 | Andrew Ercolano | Producing an applique thermoplastic article |
US4616828A (en) * | 1985-02-01 | 1986-10-14 | Haythornthwaite James Alan | Tennis ball |
EP0974378A2 (en) | 1998-06-30 | 2000-01-26 | Milliken Industrials Limited | Textile for tennis ball covering and method for manufacturing the same |
US6677257B2 (en) | 1999-12-24 | 2004-01-13 | Milliken Industrials Limited | Fabric for tennis ball covering and method for manufacturing the same |
US10493327B2 (en) | 2017-03-14 | 2019-12-03 | Wilson Sporting Goods Co. | Tennis ball having a core with internal material shift lines |
US10549159B2 (en) | 2017-03-14 | 2020-02-04 | Wilson Sporting Goods Co. | Tennis ball having a core with aerodynamic patterns |
US10918913B2 (en) | 2018-08-28 | 2021-02-16 | Wilson Sporting Goods Co. | Tennis ball |
US11192001B2 (en) | 2020-02-11 | 2021-12-07 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
US11247103B2 (en) | 2020-02-11 | 2022-02-15 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
US11426637B2 (en) | 2020-02-11 | 2022-08-30 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
US11951360B2 (en) | 2018-08-28 | 2024-04-09 | Wilson Sporting Goods Co. | Tennis ball |
-
1919
- 1919-08-05 US US315508A patent/US1376778A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868288A (en) * | 1972-07-03 | 1975-02-25 | Andrew Ercolano | Producing an applique thermoplastic article |
US4616828A (en) * | 1985-02-01 | 1986-10-14 | Haythornthwaite James Alan | Tennis ball |
EP0974378A2 (en) | 1998-06-30 | 2000-01-26 | Milliken Industrials Limited | Textile for tennis ball covering and method for manufacturing the same |
US6227992B1 (en) | 1998-06-30 | 2001-05-08 | Milliken Industrials Limited | Textile for tennis ball covering and method for manufacturing the same |
EP0974378A3 (en) * | 1998-06-30 | 2001-05-16 | Milliken Industrials Limited | Textile for tennis ball covering and method for manufacturing the same |
US6677257B2 (en) | 1999-12-24 | 2004-01-13 | Milliken Industrials Limited | Fabric for tennis ball covering and method for manufacturing the same |
US10493327B2 (en) | 2017-03-14 | 2019-12-03 | Wilson Sporting Goods Co. | Tennis ball having a core with internal material shift lines |
US10549159B2 (en) | 2017-03-14 | 2020-02-04 | Wilson Sporting Goods Co. | Tennis ball having a core with aerodynamic patterns |
US10918913B2 (en) | 2018-08-28 | 2021-02-16 | Wilson Sporting Goods Co. | Tennis ball |
US11951360B2 (en) | 2018-08-28 | 2024-04-09 | Wilson Sporting Goods Co. | Tennis ball |
US11192001B2 (en) | 2020-02-11 | 2021-12-07 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
US11247103B2 (en) | 2020-02-11 | 2022-02-15 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
US11426637B2 (en) | 2020-02-11 | 2022-08-30 | Wilson Sporting Goods Co. | Tennis ball having a thermoplastic core |
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