Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1369818 A
Publication typeGrant
Publication dateMar 1, 1921
Filing dateJun 30, 1920
Priority dateJun 30, 1920
Publication numberUS 1369818 A, US 1369818A, US-A-1369818, US1369818 A, US1369818A
InventorsTatsuzo Kosugi
Original AssigneeTatsuzo Kosugi
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Alloy
US 1369818 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

PATENT; OFFICEQ UNITED STATES TA'I SUZO KOSUGI, OF- SEIDO-MURA, KOBE, JAPAN.

Patented Mar. 1,1921.

Application filed June so, 1920. Serial No. 393,209.

Be it known that I, TATSUZO Kosqer, a sub'ect of the Emperor of Japan, residing in eido-mura, county of Muko, Prefecture of Kobe, Japan, have invented certain new and useful Improvements in Alloys, of which the following is a specificatlon.

The present invention relates to an alloy 4 comprising copper, aluminium, nickel and melting them by heating,

iron andhas for its object to obtain an alloy having a great tensile strength, not easlly susceptible of" corrosive action of air or brine. Another object is to obtain an alloy in whichblow holes-and flaws are not produced by casting and forging operations.

In the present inventlon I use copper in preponderating amount, together with aluminium, nickel and iron.

I first mix nickel and iron in a crucible, and then I add copper to the molten mass. After heating the mixture for a while I add aluminium thereto. When the whole matter is melted, the molten mass is poured into molds to form objects of any deslred shape, as in ordinary metal casting.

Preferably alloys of the quaternary type may contain from one to six per cent. iron, two. to seven per cent. nickel, seven to twelve per cent. aluminium, with the balance PPQ I The alloys prepared in this ratio give a tenslle strength as high as 48 tons per square inch, a ductility of 25%, always have a homogenelty of structure, no blow holes or flaws will be produced by any kind 'of treatmerit, such as casting, swaging, rolling, etc.', and they will never rust but permanently retain a golden luster.

This alloy, having the excellent characteristicsmentioned above, is of exceptional utillty in its employment for all kinds of Industrial and domestic purposes, being particularly .adapted to machines; cutting tools, furniture and decorative articles, and several operating and wearing parts of engines and motors.

propellers, hydraulic aving now particularly described and ascertained the nature of my said invention and m what manner the same is to be performed, I declare that what I claim is 1 A11 alloy,-comprising seventy-five to'ninety per cent. copper, seven to twelve per cent. aluminium, two to seven per cent. nickel, and one to six percent. iron.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

V TATSUZO KOSUGI.

Witnesses:

Hmno KAI, M. W. SMITH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2715577 *Jul 9, 1952Aug 16, 1955Stone & Company Charlton Ltd JCopper-base alloys
US3258334 *Jan 8, 1964Jun 28, 1966Internat Copper Res Ass IncCopper base alloy
US3405015 *Dec 3, 1965Oct 8, 1968Owens Illinois IncCopper alloy
US4555272 *Apr 11, 1984Nov 26, 1985Olin CorporationBeta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same
US4585494 *Jun 28, 1985Apr 29, 1986Olin CorporationBeta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same
US4661178 *Jun 28, 1985Apr 28, 1987Olin CorporationBeta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same
EP0163860A1 *Apr 10, 1985Dec 11, 1985Olin CorporationBeta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same
Classifications
U.S. Classification420/486
International ClassificationC22C9/01
Cooperative ClassificationC22C9/01
European ClassificationC22C9/01