US871685A - Process of applying a coating of one metal to the surface of another metal. - Google Patents

Process of applying a coating of one metal to the surface of another metal. Download PDF

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Publication number
US871685A
US871685A US37320907A US1907373209A US871685A US 871685 A US871685 A US 871685A US 37320907 A US37320907 A US 37320907A US 1907373209 A US1907373209 A US 1907373209A US 871685 A US871685 A US 871685A
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United States
Prior art keywords
metal
coating
applying
opening
platinum
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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
Application number
US37320907A
Inventor
Anton Freier
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HOLTZER CABOT ELECTRIC CO
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HOLTZER CABOT ELECTRIC CO
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Priority to US37320907A priority Critical patent/US871685A/en
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Publication of US871685A publication Critical patent/US871685A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
    • H01L21/4853—Connection or disconnection of other leads to or from a metallisation, e.g. pins, wires, bumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49224—Contact or terminal manufacturing with coating
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49833—Punching, piercing or reaming part by surface of second part

Definitions

  • the metal which is to be used for the coating is applied in the form ofa thin sheet to the surface of a Similar sheet of other metal, the two being joined together in any suitable way, as by brazing;
  • the second sheet of metal' is utilized as a support for the coating'sheet, and
  • the latinum coating may be applied to aisheet 0 German silver which is're atively inexpensive and possessed of the necessary strength to afford a backin the sheet of German silver being of any thic n'ess which may be desired.
  • the article to which the metallic coating isto be applied such, for example, as a metalhc electric contact spring, is rovided with an opening or recess, and" t e compound strip consisting of the two sheets of metal joined together, as above described, is placed dver the opening and a piece is punched out,
  • Figure 1 is a sectional view of a compound strip made up in accordance with the first Specification of Letters Patent. Application filed May 13. 1907- Serial No. 373.209.
  • Fig. 2 is a sectional view of the compound strip and the article to which the coating is applied, the same view' showing the punch which has been operated to apply the coating; and Fig. 3 is a view similar to Fig. 2, showing a coating applied to an article differing in shape from that shown in Fig. 2.
  • the process of applying a platinum tip portion to an electrical contact spring or other member will be specifically referred to, for convenience, with the understanding that the process isnot in any way limited to any s ecific article of manufacture.
  • the compound strip illustrated in Fig. 1 may be described as consisting of a thin sheet of platinum a brazed, or
  • ig. 1 is then placed in the position shown in Fig. 2, with relation to the contact spring 0 to which the tip is to be applied, the said. strip 0 having been previously provided with a hole or opening 0 to receive and retain a portion of the com ound strip a, r
  • the opening e in the dice does not operate as part of the cutting portion of the punch, the openingv c in the contact spring 0 itself constituting the outer cutting In this way, the iece which is cut instead of being merely held in place by I herence to the 'material I).
  • the platinum I tip therefore; can be subjected to heat up to the melting point of the platinum Without becoming disengaged from the spring 0, un-
  • the pin 0 is provided at the end with a platinum point. I-n this case, the pin 0 is provided With an opening 0 the process being the same except that the German silver portion I) is laced adjacent to the opening, and a piece oi the compound strip forced only far enough'into the opening to cause a small art of the platinum to be held'by the Walls of the Claim.

Description

No. 871,685. PATENTED NOV. 19, 1907. A. FREIER.
PROCESS OF APPLYING A COATING OF ONE METAL TO THE SURFACE OF ANOTHER METAL.
APPLICATION FILED MAY 13. 1907.
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a UNITED STATES PATENT. OFFICE.
ANTON Fenian,- or BOSTON, MassAcHiisETTs, as sIeNoR To HoLrzER OABOT ELECTRIC CQMPANY, A CORPORATION OF MASSACHUSETTS.
PROCESS OF APPLYING A COATING OF ONE METAL TO THE SURFACE OF ANOTEELR METAL. I i
To all whom it may concern:
Be it known that I, ANTON FREIER, a citizen of theUnited States,-residing in Boston, in the countyofSuffolk and State of Massachusetts, have invented an Improvement in Processes of Applying a Coating of One platinum, while it is desirable to use the minlmum amount of'that material on account of the cost. It is obvious, however, that the same process may be apipliedfor analogous processes, wherever it is esiredto apply a thin coating of one material to a port1on of the surface of a member composed in the main of different material.
In carrying out the process, the metal which is to be used for the coating is applied in the form ofa thin sheet to the surface of a Similar sheet of other metal, the two being joined together in any suitable way, as by brazing; The second sheet of metal'is utilized as a support for the coating'sheet, and
may possess different ualities; being, for example, harder or toug er, and in most instances less costly. In making platinum. tips, for example, the latinum coating may be applied to aisheet 0 German silver which is're atively inexpensive and possessed of the necessary strength to afford a backin the sheet of German silver being of any thic n'ess which may be desired.
The article to which the metallic coating isto be applied, such, for example, as a metalhc electric contact spring, is rovided with an opening or recess, and" t e compound strip consisting of the two sheets of metal joined together, as above described, is placed dver the opening and a piece is punched out,
and, by the, same operation, forced into the 1 opening with a tight driving fit, so as to be frictionally held therein with the coated strip'projecting slightly beyond the surface.
Figure 1 is a sectional view of a compound strip made up in accordance with the first Specification of Letters Patent. Application filed May 13. 1907- Serial No. 373.209.
Patented Nov. 19, 1907'.
step of the process; Fig. 2 is a sectional view of the compound strip and the article to which the coating is applied, the same view' showing the punch which has been operated to apply the coating; and Fig. 3 is a view similar to Fig. 2, showing a coating applied to an article differing in shape from that shown in Fig. 2.
In-describing the invention, the process of applying a platinum tip portion to an electrical contact spring or other member will be specifically referred to, for convenience, with the understanding that the process isnot in any way limited to any s ecific article of manufacture. With thisun erstanding,'what may be termed the compound strip illustrated in Fig. 1 may be described as consisting of a thin sheet of platinum a brazed, or
other'wise'joined, to the surface of a similar sheet of German silver I), the latter sheet bemg of sufiicient thickness to afford the strength and size needed in frictionally supporting the platinum coating in the contact The compound strip shown in j s ring 0.
ig. 1 is then placed in the position shown in Fig. 2, with relation to the contact spring 0 to which the tip is to be applied, the said. strip 0 having been previously provided with a hole or opening 0 to receive and retain a portion of the com ound strip a, r
In the construct1on illustrated in Flg, 2 1n which the platinum tip consists of a protuberance from the surface of the contact spring c, the platinum surface is placed in contact with the surface of the s ring 0, and the unch d, in alinement wit the opening 0 is then 0 erated to punch out a piece of the strip an force the same into and part-way through the opening 0 so that the platinum surface projects just beyond the under surface of the spring 0.
While-the spring 0 1s shown as supported upon a die e, the opening e in the dice does not operate as part of the cutting portion of the punch, the openingv c in the contact spring 0 itself constituting the outer cutting In this way, the iece which is cut instead of being merely held in place by I herence to the 'material I).
The platinum I tip, therefore; can be subjected to heat up to the melting point of the platinum Without becoming disengaged from the spring 0, un-
less the spring itself is. melted so as to disensurface of a s ring, a: piece of thestrip is opening.
punched and orced into an'opening at the end of the pin, as indicated in Fig. 3, Where the pin 0 is provided at the end with a platinum point. I-n this case, the pin 0 is provided With an opening 0 the process being the same except that the German silver portion I) is laced adjacent to the opening, and a piece oi the compound strip forced only far enough'into the opening to cause a small art of the platinum to be held'by the Walls of the Claim.
The herein described process of applying a coating of one metal to the surface of an- I other metal Which'consists in causing a sheet of the coated metal to adhere to a sheet of different metal and punching a iece out of the compound sheet thus forme and at the same operation forcing the punched out piece into an opening formed in the piece of metal tofbe coated, substantially as described.
p In testimony whereof, I have signed my name to this specification in the presence of ANTON FREIER.
Witnesses:
HENRY J. LIVERMORE, JAMES J MALoNEY.
US37320907A 1907-05-13 1907-05-13 Process of applying a coating of one metal to the surface of another metal. Expired - Lifetime US871685A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854074A (en) * 1952-09-06 1958-09-30 Ite Circuit Breaker Ltd Composite electrical conductor and method and apparatus for producing same
US6438832B1 (en) * 2000-02-21 2002-08-27 Larry J. Costa Method of forming layered metal components

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854074A (en) * 1952-09-06 1958-09-30 Ite Circuit Breaker Ltd Composite electrical conductor and method and apparatus for producing same
US6438832B1 (en) * 2000-02-21 2002-08-27 Larry J. Costa Method of forming layered metal components

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