US764849A - Core compound. - Google Patents

Core compound. Download PDF

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Publication number
US764849A
US764849A US17509203A US1903175092A US764849A US 764849 A US764849 A US 764849A US 17509203 A US17509203 A US 17509203A US 1903175092 A US1903175092 A US 1903175092A US 764849 A US764849 A US 764849A
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United States
Prior art keywords
compound
core compound
core
wood
making
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Expired - Lifetime
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US17509203A
Inventor
George Anson Hubbard
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Individual
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Individual
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Priority to US17509203A priority Critical patent/US764849A/en
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Publication of US764849A publication Critical patent/US764849A/en
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Classifications

    • 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
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/167—Mixtures of inorganic and organic binding agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00939—Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores

Definitions

  • This improved compound is composed of the following materials: hydrous calcium sulfate, commonly known as gypsum or landplaster, stucco, flour formed from wheat, rye, or other suitable grain, starch, and finelycomminuted vegetable fiber, commonly known as sawdust, wood-dust, pulverized wood, wood-pulp, wood-flour, or the like. These ingredients are preferably thoroughly mixed in a dry or powdered state to form the compound for making the cores.
  • composition of matter of the character herein set forth consisting of hydrous calcium sulfate, stucco, flour, starch, and finely-comminuted vegetable fiber 0r sawdust.

Description

UNITED STATES Patented July 12, 1904.
PATENT CEEIGE.
CORE COMPOUND.
SPECIFICATION forming part of Letters Patent No. 764,849, dated July 12, 1904;.
' Application filed September 29, 1903.
To all whom it may concern.-
Be it known that I, GEORGE ANsoN HUB- BARD, a citizen of the United States, residing at Chicago, in the county of Cook, in the State of Illinois, have invented a new and useful Composition of Materials adapted to form an Improved Compound for Making Foundry- Cores, of which the followingis aspecification.
This improved compound is composed of the following materials: hydrous calcium sulfate, commonly known as gypsum or landplaster, stucco, flour formed from wheat, rye, or other suitable grain, starch, and finelycomminuted vegetable fiber, commonly known as sawdust, wood-dust, pulverized wood, wood-pulp, wood-flour, or the like. These ingredients are preferably thoroughly mixed in a dry or powdered state to form the compound for making the cores.
It is well known that a core-forming mate rial which will conform to all of the necessary requirements desirable in such material should have as light weight as is consistent for the purposes desired. The addition of the sawdust in this compound greatly increases the bulk in proportion to the weight, and I have found that Serial No. 175,092. (No specimens.)
this makes an excellent product, fulfilling all of the necessary requirements for making a good core.
In casting different metals or different qualities of iron I have found that it is essential to make this compound in greatly-varying proportions, insomuchso that any single definite proportion would not sufliciently state my conception of this invention. Itis also apparent that changes may be made in the particular ingredients used without departing from the spirit of this invention.
I am aware that some of these substances have heretofore been used in making cores, and I do not claim the use of such separately; but
What I do claim, and desire to secure .by Letters Patent, is-
A composition of matter of the character herein set forth, consisting of hydrous calcium sulfate, stucco, flour, starch, and finely-comminuted vegetable fiber 0r sawdust.
GEORGE ANSON HUBBARD.
US17509203A 1903-09-29 1903-09-29 Core compound. Expired - Lifetime US764849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17509203A US764849A (en) 1903-09-29 1903-09-29 Core compound.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17509203A US764849A (en) 1903-09-29 1903-09-29 Core compound.

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US764849A true US764849A (en) 1904-07-12

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US17509203A Expired - Lifetime US764849A (en) 1903-09-29 1903-09-29 Core compound.

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537960A (en) * 1945-03-16 1951-01-16 Raymond I Billington Plastic composition comprising mineral powder, wood dust, and adhesive
US2806270A (en) * 1953-07-17 1957-09-17 Rolls Royce Method of making moulds for precision casting
US4604141A (en) * 1983-04-15 1986-08-05 Hitachi, Ltd. Slip casting mold
US20090260918A1 (en) * 2008-04-18 2009-10-22 Bangji Cao Panels including renewable components and methods for manufacturing same
US20090260770A1 (en) * 2008-04-18 2009-10-22 Cao Bangii Panels including renewable components and methods for manufacturing
CZ305999B6 (en) * 2011-11-10 2016-06-15 Technická universita v Liberci Sand mixture for producing molds and cores

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537960A (en) * 1945-03-16 1951-01-16 Raymond I Billington Plastic composition comprising mineral powder, wood dust, and adhesive
US2806270A (en) * 1953-07-17 1957-09-17 Rolls Royce Method of making moulds for precision casting
US4604141A (en) * 1983-04-15 1986-08-05 Hitachi, Ltd. Slip casting mold
US20090260918A1 (en) * 2008-04-18 2009-10-22 Bangji Cao Panels including renewable components and methods for manufacturing same
US20090260770A1 (en) * 2008-04-18 2009-10-22 Cao Bangii Panels including renewable components and methods for manufacturing
US7935223B2 (en) 2008-04-18 2011-05-03 ISG Interiors, Inc. Panels including renewable components and methods for manufacturing
US20110180225A1 (en) * 2008-04-18 2011-07-28 Cao Bangii Panels including renewable components and methods for manufacturing
US8080133B2 (en) 2008-04-18 2011-12-20 Usg Interiors, Inc. Panels including renewable components and methods for manufacturing
US8133357B2 (en) 2008-04-18 2012-03-13 Usg Interiors, Inc. Panels including renewable components and methods for manufacturing same
CZ305999B6 (en) * 2011-11-10 2016-06-15 Technická universita v Liberci Sand mixture for producing molds and cores

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