US1350828A - Hollow projectile-shell of sheet metal - Google Patents
Hollow projectile-shell of sheet metal Download PDFInfo
- Publication number
- US1350828A US1350828A US244935A US24493518A US1350828A US 1350828 A US1350828 A US 1350828A US 244935 A US244935 A US 244935A US 24493518 A US24493518 A US 24493518A US 1350828 A US1350828 A US 1350828A
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- US
- United States
- Prior art keywords
- shell
- sheet metal
- hollow projectile
- projectile
- murray
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3081—Electrodes with a seam contacting part shaped so as to correspond to the shape of the bond area, e.g. for making an annular bond without relative movement in the longitudinal direction of the seam between the electrode holder and the work
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S122/00—Liquid heaters and vaporizers
- Y10S122/16—Welding
Definitions
- THOMAS E. MURRAY, Jr., and JOSEPH B. MURRAY citizens of the United States, residing at Brooklyn, in the county of Kings and State of New York,
- the invention is an elon ated hollow projectile shell formed integrally of sheet metal, and a process of making the same, whereby we are enabled to produce such shells with great rapidity, in very large quantities and at a greatly reduced cost as compared with that of shells as at present made.
- we are than one minute include 'ng the time of handling and transportation to the dies and weldin machine.
- the finished shell is everyw ere integral, and is, as abundant Government tests have shown, everywhere uniformly strong. 1
- Figure 1 shows the blank of sheet metal from which a section of the shell is produced.
- Fig. 2 shows the section cut from said blank, the final configuration of the finished section being here developed in a plane.
- F ig. v3 shows said section after pressing in .dies to give it the shape of a longitudinally divided half of the projectile.
- Fig. 4 shows said section] after swaging to true its shape.
- F ig.,5 shows two of saidvsections disposed in the welding electrodes.
- Fig. 1 From a sheet of thin metal, Fig. 1, of suitable area we produce, by stamping, a blank, Fig. 2, which shows a configuration obtained by developing in a plane the conformation of one of the two interchangeable longitudinal sections which togther make up the projectile shell.
- This blank is then placed etween suitable dies and caused by pressure to assume the concave form shown in Fig. 3. If this first sha ing should leave the longitudinal edges of the section somewhat irregular and the curvature of the section not accurately true, we subject the section to a second pressing or swaging in suitable dies, whereby the shape is trued and the longitudinal edges A rendered flat and smooth, as shown in Fig. 4.
- an elongated hollow projectile shell of sheet metal formed integrally of twointerchangeable longitudinally divided sections electrically united at their registering edges.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
T. E. MURRAY, 111., AND .I. 'B. MURRAY.
HOLLOW PROJECTILE SHELL 0F SHEET METAL.
APPL ICATION FILED JULY 15. 1918.
Patented Aug. 24, 1920.
UNITED STATES PATENT OFFICE.
THOMAS E. MURRAY, JR, AND JOSEPH B. MURRAY, OF BROOKLYN,.NEW YORK.
HOLLOW PROJECTILE-SHELL 0F SHEET METAL.
Specification of Letters Patent. Patented Aug. 24, 1920.
Application filed July 15, 1918. Serial No. 244,935.
To all whom it may concern:
Be it known that we, THOMAS E. MURRAY, Jr., and JOSEPH B. MURRAY, citizens of the United States, residing at Brooklyn, in the county of Kings and State of New York,
have invented a certain new and useful Improvement in Hollow Projectile-Shells of Sheet .Metal, of which the following is a specification.
The invention is an elon ated hollow projectile shell formed integrally of sheet metal, and a process of making the same, whereby we are enabled to produce such shells with great rapidity, in very large quantities and at a greatly reduced cost as compared with that of shells as at present made. As a matter of record of actual performance, we are than one minute, inclu 'ng the time of handling and transportation to the dies and weldin machine. The finished shell is everyw ere integral, and is, as abundant Government tests have shown, everywhere uniformly strong. 1
In the accompanying drawin Figure 1 shows the blank of sheet metal from which a section of the shell is produced. Fig. 2 shows the section cut from said blank, the final configuration of the finished section being here developed in a plane. F ig. v3 shows said section after pressing in .dies to give it the shape of a longitudinally divided half of the projectile. Fig. 4 shows said section] after swaging to true its shape. F ig.,5 shows two of saidvsections disposed in the welding electrodes.
Similar letters of reference indicate like pasts. l
In carrying out our-process, we proceed as follows:-
From a sheet of thin metal, Fig. 1, of suitable area we produce, by stamping, a blank, Fig. 2, which shows a configuration obtained by developing in a plane the conformation of one of the two interchangeable longitudinal sections which togther make up the projectile shell. This blank is then placed etween suitable dies and caused by pressure to assume the concave form shown in Fig. 3. If this first sha ing should leave the longitudinal edges of the section somewhat irregular and the curvature of the section not accurately true, we subject the section to a second pressing or swaging in suitable dies, whereby the shape is trued and the longitudinal edges A rendered flat and smooth, as shown in Fig. 4.
We thus produce any desired number of similar and interchangeable sections, two of whlch, B, B, Fig. 5-, are seated in correspondingly recessed electrodes C, D, the edges of said sections being in registering contact, and -we press said edges together while establishing the welding current. We
preferably employ a current of very great strength-from 5000 to 30,000 amperes per square inch-and for a very brief period of time, by which means we unite the two sections integrally, so that substantially no gfiint appears, thus completing the projectile ell. 1
We claim:
As a new article of manufacture and sale, an elongated hollow projectile shell of sheet metal formed integrally of twointerchangeable longitudinally divided sections electrically united at their registering edges.
In testimony whereof We have aflixed our signatures in presence of two witnesses.
THdMAs E. MURRAY, JR. JOSEPH B. MURRAY.
Witnesses:
GERTRUDE T. PORTER, ,MAY T. MCGARRY.,-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US244935A US1350828A (en) | 1918-07-15 | 1918-07-15 | Hollow projectile-shell of sheet metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US244935A US1350828A (en) | 1918-07-15 | 1918-07-15 | Hollow projectile-shell of sheet metal |
Publications (1)
Publication Number | Publication Date |
---|---|
US1350828A true US1350828A (en) | 1920-08-24 |
Family
ID=22924676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US244935A Expired - Lifetime US1350828A (en) | 1918-07-15 | 1918-07-15 | Hollow projectile-shell of sheet metal |
Country Status (1)
Country | Link |
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US (1) | US1350828A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458576A (en) * | 1943-10-04 | 1949-01-11 | Nicholas L Etten | Fragmentation bomb |
US3976009A (en) * | 1974-04-24 | 1976-08-24 | Delgado Manuel M | Composite cast structure and process for manufacture of same |
US5936190A (en) * | 1993-06-01 | 1999-08-10 | Buzick; Steven Craig | Precision shooting aerodynamic non-spherical safety-oriented projectile |
EP1719571A1 (en) * | 2005-05-04 | 2006-11-08 | Conntronic | Method and device of resistance pressure welding of workpieces made of multiple parts |
-
1918
- 1918-07-15 US US244935A patent/US1350828A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458576A (en) * | 1943-10-04 | 1949-01-11 | Nicholas L Etten | Fragmentation bomb |
US3976009A (en) * | 1974-04-24 | 1976-08-24 | Delgado Manuel M | Composite cast structure and process for manufacture of same |
US5936190A (en) * | 1993-06-01 | 1999-08-10 | Buzick; Steven Craig | Precision shooting aerodynamic non-spherical safety-oriented projectile |
EP1719571A1 (en) * | 2005-05-04 | 2006-11-08 | Conntronic | Method and device of resistance pressure welding of workpieces made of multiple parts |
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