US1039674A - Method of making hollow metallic balls. - Google Patents
Method of making hollow metallic balls. Download PDFInfo
- Publication number
- US1039674A US1039674A US68522712A US1912685227A US1039674A US 1039674 A US1039674 A US 1039674A US 68522712 A US68522712 A US 68522712A US 1912685227 A US1912685227 A US 1912685227A US 1039674 A US1039674 A US 1039674A
- Authority
- US
- United States
- Prior art keywords
- blanks
- dies
- hollow metallic
- metallic balls
- making hollow
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/02—Making hollow objects characterised by the structure of the objects
- B21D51/08—Making hollow objects characterised by the structure of the objects ball-shaped objects
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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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49712—Ball making
- Y10T29/49714—Hollow ball
Definitions
- I also omit the conducting wires, etc., of the electric welding apparatus which I prefer to employ. I do this because these appliances form n0 essential part of the present invention and also because many forms'of them are now well known and in extensive use.
- 1 represents one of the blanks. It is preferably drawn up into cup shape, as shown, from'a flat disk of metal, usually sheet steel. Two of these blanks are used for each ball and in order that there may be an excess of metal to permit of the forcing together and upsetting of it at the welded joint between the two halves, one or both of them, preferably both, are made somewhat larger or deeper than would be a true semi-sphere, so
- the heating and pressure has been accomplished and the metal which has been heated almost to the fusing point at the bases or rims of the blanks has been forced together and a little of the excess metal has been squeezed out into the space 4 between the dies, as seen at 5.
- the electric welding apparatus is so arranged and the heat so applied to the blanks that their bases or rims shall be heated very hot, as stated, almost to the fusing point, and the other parts of them more removed from the rims are heated to say a cherry red and since, as stated, the cavities in the respective .dies are accurately made and conform to the semispherical shape of the finished ball.
- the single stepin the process of applying the pressure performs the dual functions of welding the blanks together and at the same time accurately shaping and largely completing the ball, and nothing remains to be done but to remove-the circumferential bur and grind or polish the ball.
- the described process consisting in supporting two substantially semi spherical hollow blanks in recesses slightly less than semi-spheres made in suitable dies, bringing .their rims together, heating the rims to welding heat and the other parts of the blanks to lower degrees of heat and then forcing the dies toward 'each other, so that the blanks are welded together and given a spherical shape.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
J. W. SGHATZ.
METHOD OF MAKING HOLLOW METALLIC BALLS.
APPLIGATION FILED MAR. 21, 1912.
Patented Sept.24,1912.
QWihmeoaca:
UNITED STATESPATENT OFFICE.
JOHN W. SCHATZ, OF POUGHKEEYSIE, NEW YORK, ASSIGNOB OI bNE-HALF TO HEB-HAN A. SCHATZ, OI POUGBKEEPSIE, NEW'YOBK.
METHOD 0! KING HOLLOW METALLIC BALLS.
Specification of Letters Intent.
Patented Sept. 24, 1912.
Application filed latch 21, 1918. Serial Io. 885,327.
To all'whom it may concern:
Be it'known that I, JOHN W. SCHATZ, a citizen of the United States, and a resident of the city of Poughkeepsie, county of Dutchess, and State of New York, have invented a new and Improved Method of Making Hollow Metallic Balls, of which the following is a full, clear, and exact description.
It is the purpose of this invention to pro duce hollow metallic balls by the practice of the process herein described, whereby the balls are made rapidly and perfectly and possess, when finished, unusual strength, because of the perfection of the welding operation resulting from the method of forming the blanks and the treatment applied to i 4 shown in Fig. 3; Fig. 5 illustrates in elevation a completed ball.
In the drawings I illustrate the dies diagrammatically only and omit entirely the press in which they are placed and by which they are manipulated in perfect alinement.
I also omit the conducting wires, etc., of the electric welding apparatus which I prefer to employ. I do this because these appliances form n0 essential part of the present invention and also because many forms'of them are now well known and in extensive use.
Referring to the drawings, 1 represents one of the blanks. It is preferably drawn up into cup shape, as shown, from'a flat disk of metal, usually sheet steel. Two of these blanks are used for each ball and in order that there may be an excess of metal to permit of the forcing together and upsetting of it at the welded joint between the two halves, one or both of them, preferably both, are made somewhat larger or deeper than would be a true semi-sphere, so
that when two of them are put togetherbase to base, they present a somewhat oblong appearance.
2, 2, represent the upper and lower dies. One of them is rigidly supported on the table of the press and the other is adapted to be forced toward the stationary one. Both may, however, be movable, if preferred. In each of these dies a cavity, 3, is accurately made, which is slightly less in size than that of half of the ball for which the dies are intended, but otherwise conforming in shape. This slight scantiness is provided, so that a little space 4 (see Fig. 3) may be left between the dies when they are brought together, into which the compressed metal may move during the welding operation. This is illustrated in Figs. 2 and 3. In- Fig. 2 the two blanks 1, 1, are shown base to base and each in its cavity 3, 3, in the respective dies. In Fig. 3 the heating and pressure has been accomplished and the metal which has been heated almost to the fusing point at the bases or rims of the blanks has been forced together and a little of the excess metal has been squeezed out into the space 4 between the dies, as seen at 5. The electric welding apparatus is so arranged and the heat so applied to the blanks that their bases or rims shall be heated very hot, as stated, almost to the fusing point, and the other parts of them more removed from the rims are heated to say a cherry red and since, as stated, the cavities in the respective .dies are accurately made and conform to the semispherical shape of the finished ball. when the pressure is applied, the oblong shape of the two half blanks is transformed into a true spherical shape, so that when the welded ball is removed from the dies, as. shown in Fig. 4, it is practically completed because it has already been given almost perfect spherical form and all that remains to be doneis to cut off the slight circumferential bur 5 and grind the ball, as usual, which finishes it as shown in Fig. 5.
Under the process described, a series of very valuable results are secured at a minimum of cost and they result not only in the production of superior balls, but also in very greatly decreasing the time required for' means whereby a most strong and reliable welding of the parts together results. i (b) The differential heating of the blanks, z'. 6.,
the rims or bases almost to the fusing point and the other parts of the blanks to less degrees of heat, is very easily attained by the electrical welding process without any increased cost and yet because of this difierem tial heating the less hot parts being supported by the dies will withstand the pressure to which they are subjected without buckling or collapsing and will powerfully force the highly heated rims ,of the blanks together, thus effecting a perfect welding of them. (0) Owing to the fact that the cavities in the dies are so shaped as to give to the welded ball a truly spherical shape, the single stepin the process of applying the pressure performs the dual functions of welding the blanks together and at the same time accurately shaping and largely completing the ball, and nothing remains to be done but to remove-the circumferential bur and grind or polish the ball.
It will be obvious-to those who are familiar-With such matters that certain of the details above described may be modified without departing from the essentials of the invention. I therefore do not limit myself to the details. The several steps in the process recited in the claim hereof I regard as essential, but not the specified detail of their accomplishment.
I claim as of my invention:
The described process consisting in supporting two substantially semi spherical hollow blanks in recesses slightly less than semi-spheres made in suitable dies, bringing .their rims together, heating the rims to welding heat and the other parts of the blanks to lower degrees of heat and then forcing the dies toward 'each other, so that the blanks are welded together and given a spherical shape.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
JOHN W. SCI-IATZ. Witnesses:
JOHN B. BALL, E. E. PERKINS-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68522712A US1039674A (en) | 1912-03-21 | 1912-03-21 | Method of making hollow metallic balls. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68522712A US1039674A (en) | 1912-03-21 | 1912-03-21 | Method of making hollow metallic balls. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1039674A true US1039674A (en) | 1912-09-24 |
Family
ID=3107948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US68522712A Expired - Lifetime US1039674A (en) | 1912-03-21 | 1912-03-21 | Method of making hollow metallic balls. |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3464099A (en) * | 1965-12-15 | 1969-09-02 | Dunlop Rubber Co | Manufacture of plastic articles |
US3599307A (en) * | 1969-08-05 | 1971-08-17 | Us Air Force | Production of hollow ball or roller bearing by swaging or other compressive method |
US3731359A (en) * | 1970-03-27 | 1973-05-08 | E Glenn | Apparatus and process for making hollow ball bearings |
US3781958A (en) * | 1972-08-14 | 1974-01-01 | Nasa | Method of making rolling element bearings |
US3952390A (en) * | 1973-03-01 | 1976-04-27 | Amos James J | Method of producing ball joints |
US20120058359A1 (en) * | 2010-08-02 | 2012-03-08 | Russell Kingston | Methods to fabricate fully enclosed hollow structures using friction stir welding |
CN106163324A (en) * | 2014-03-14 | 2016-11-23 | 奥布里斯特封闭瑞士有限公司 | The improvement of deodorization ball or the improvement relevant to deodorization ball |
US11011144B2 (en) | 2015-09-29 | 2021-05-18 | Shutterstock, Inc. | Automated music composition and generation system supporting automated generation of musical kernels for use in replicating future music compositions and production environments |
-
1912
- 1912-03-21 US US68522712A patent/US1039674A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3464099A (en) * | 1965-12-15 | 1969-09-02 | Dunlop Rubber Co | Manufacture of plastic articles |
US3599307A (en) * | 1969-08-05 | 1971-08-17 | Us Air Force | Production of hollow ball or roller bearing by swaging or other compressive method |
US3731359A (en) * | 1970-03-27 | 1973-05-08 | E Glenn | Apparatus and process for making hollow ball bearings |
US3781958A (en) * | 1972-08-14 | 1974-01-01 | Nasa | Method of making rolling element bearings |
US3952390A (en) * | 1973-03-01 | 1976-04-27 | Amos James J | Method of producing ball joints |
US20120058359A1 (en) * | 2010-08-02 | 2012-03-08 | Russell Kingston | Methods to fabricate fully enclosed hollow structures using friction stir welding |
US8317080B2 (en) * | 2010-08-02 | 2012-11-27 | Megastir Technologies Llc | Methods to fabricate fully enclosed hollow structures using friction stir welding |
US8490855B2 (en) | 2010-08-02 | 2013-07-23 | Megastir Technologies Llc | Methods to fabricate fully enclosed hollow structures using friction stir welding |
CN106163324A (en) * | 2014-03-14 | 2016-11-23 | 奥布里斯特封闭瑞士有限公司 | The improvement of deodorization ball or the improvement relevant to deodorization ball |
US20170079403A1 (en) * | 2014-03-14 | 2017-03-23 | Obrist Closures Switzerland Gmbh | Improvements in or relating to deodorant balls |
US10426245B2 (en) * | 2014-03-14 | 2019-10-01 | Obrist Closures Switzerland Gmbh | In or relating to deodorant balls |
US11011144B2 (en) | 2015-09-29 | 2021-05-18 | Shutterstock, Inc. | Automated music composition and generation system supporting automated generation of musical kernels for use in replicating future music compositions and production environments |
US11030984B2 (en) | 2015-09-29 | 2021-06-08 | Shutterstock, Inc. | Method of scoring digital media objects using musical experience descriptors to indicate what, where and when musical events should appear in pieces of digital music automatically composed and generated by an automated music composition and generation system |
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