US174356A - Improvement in material for molds and cores - Google Patents

Improvement in material for molds and cores Download PDF

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Publication number
US174356A
US174356A US174356DA US174356A US 174356 A US174356 A US 174356A US 174356D A US174356D A US 174356DA US 174356 A US174356 A US 174356A
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United States
Prior art keywords
molds
cores
improvement
water
carbon
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives

Definitions

  • My invention consists in the use of pulverized gas-carbon, dampened with flour-water or molasses-water, or other similar and suitable be baked the same as dry-sand molds or cores are baked for the purpose of getting them free from moisture.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Description

UNITED STATES PATENT OFFICE.
WILLIAM P. DARLING, OF BUFFALO, NEW YORK.
IMPROVEMENT IN MATERIAL FOR MOLDS AND CORES.
Specification forming part of Letters Patent No. I 74,356, dated March 7, 1876; application filed j November 15, 1875. i
To all whom it may concern j 'Be it known that I, WILLIAM PAUL DAR- LING, of Bufl'alo, in the. county of Erie and State of New York, have made certain Improvements in Constructing Molds and Cores for Metallic Castings, of which the following is a specification:
My invention consists in the use of pulverized gas-carbon, dampened with flour-water or molasses-water, or other similar and suitable be baked the same as dry-sand molds or cores are baked for the purpose of getting them free from moisture.
The advantages of the use of this gas-carbon are that castings made in molds or around cores thus constructed are more solid, less porous, smoother, and truer than castings made in any other molds from any other combination of material 'with which I am acquainted.
I claimv Pulverized gas-carbon treated with flourwater, molasses-water, or other similar fluids,
as a material for molds or cores for casting metals, as specified.
' In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses. V
W. P. DARLING.
Witnesses:
J. It. DRAKE, T. H, PARSONS.
US174356D Improvement in material for molds and cores Expired - Lifetime US174356A (en)

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US174356A true US174356A (en) 1876-03-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469907A (en) * 1946-08-22 1949-05-10 Whitehead Bros Co Mold composition
US2507390A (en) * 1947-05-07 1950-05-09 Whitchead Brothers Company Baked cores for use in metal casting
US20110110135A1 (en) * 2009-11-10 2011-05-12 Shingo Oishi Wave detector circuit and high-frequency circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469907A (en) * 1946-08-22 1949-05-10 Whitehead Bros Co Mold composition
US2507390A (en) * 1947-05-07 1950-05-09 Whitchead Brothers Company Baked cores for use in metal casting
US20110110135A1 (en) * 2009-11-10 2011-05-12 Shingo Oishi Wave detector circuit and high-frequency circuit

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