US1234699A - Process for making autogenous joints. - Google Patents

Process for making autogenous joints. Download PDF

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Publication number
US1234699A
US1234699A US80640513A US1913806405A US1234699A US 1234699 A US1234699 A US 1234699A US 80640513 A US80640513 A US 80640513A US 1913806405 A US1913806405 A US 1913806405A US 1234699 A US1234699 A US 1234699A
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United States
Prior art keywords
copper
lead
making
joints
autogenous
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US80640513A
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Bruce Ford
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product

Definitions

  • Another object of the invention is to provide for casting the lead terminals upon copper wires and bars, such as are used in storage battery connections.
  • the process consists in first amalgamating the copper with mercury, then placing the amalgamated metal in a mold and casting the lead upon it.
  • the mercury is either volatilized or absorbed by the lead, so that its eflect is negligible except that it makes an integral union between the lead and copper,
  • a convenient method of amalgamating the copper is to first moisten it with an aqueous solution of caustic such as caustic soda and to then dip it into the mercury.

Description

' which would not be the case if the copper UNITED STATES PATENT OFFICE.
BRUCE FORD, 0F PHILADELPHIA, PENNSYLVANIA.
PROCESS FOR MAKING AUTOG-ENOUS JOINTS.
N 0 Drawing.
Another object of the invention is to provide for casting the lead terminals upon copper wires and bars, such as are used in storage battery connections.
The process consists in first amalgamating the copper with mercury, then placing the amalgamated metal in a mold and casting the lead upon it. The mercury is either volatilized or absorbed by the lead, so that its eflect is negligible except that it makes an integral union between the lead and copper,
were not previously amalgamated. In other words, when lead is cast upon copper the union is not satisfactory, but by amalgamat ing the copper and then casting the lead upon it the union is satisfactory and the mercury does not seem to produce any effect other than bringing about the closeness or perfectness of this union.
A convenient method of amalgamating the copper is to first moisten it with an aqueous solution of caustic such as caustic soda and to then dip it into the mercury. A vessel containing mercury to the required depth with a solution of caustic on top of the mercury into which the copper is dipped, answers the same purpose. When the copper has been properly amalgamated, for example, in either of the ways mentioned, it is wiped Specification of Letters Patent.
dry and placed in an appropriate mold. This amalgamated metal is cold when placed in the mold which is advantageous because if it were attempted to place it in the mold hot, the amalgam, or perhaps more accurately, the mercury, would be vaporized or oxidized, and one of the essentials is to avoid oxidation. Thereafter the lead is poured into the mold upon the amalgamated copper and upon cooling itis found that the union between the two is extremely perfect and the mercury appears to have disappeared either by volatilization or possibly absorption by the lead.
What I claim is:
1. The process of making autogenousjoints which consists in amalgamating a metal, arranging the cold amalgamated metal in a mold, and casting other molten metal into the mold and upon the amalgam.
2. The process of making autogenous joints between lead and copper which consists in first amalgamating the copper, placing the amalgamating metal while coldin a mold, and casting the lead upon it.
3.. The process of making autogenous joints between lead and copper which consists in subjecting the copperto the action of a caustic solution and then dipping it in mercury, wiping the amalgam dry, putting the dry amalgamated copper in a mold, and casting molten lead upon the amalgam in the mold, substantially as described.
4:- The process of making autogenous joints between lead and copper which consists in first amalgamating the copper and then casting the lead onto the amalgamated copper.
- BRUCE FORD. Witnesses:
Gno. M. HOWARD, L. H. FLANDERS.
Copies 01 this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,
Washington, D. G.
Patented July 24, 1917. Application filed December 13, 1913. Serial No. 806,465.
US80640513A 1913-12-13 1913-12-13 Process for making autogenous joints. Expired - Lifetime US1234699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US80640513A US1234699A (en) 1913-12-13 1913-12-13 Process for making autogenous joints.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80640513A US1234699A (en) 1913-12-13 1913-12-13 Process for making autogenous joints.

Publications (1)

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US1234699A true US1234699A (en) 1917-07-24

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US80640513A Expired - Lifetime US1234699A (en) 1913-12-13 1913-12-13 Process for making autogenous joints.

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