US1775576A - Combustibly-destructible mold core - Google Patents
Combustibly-destructible mold core Download PDFInfo
- Publication number
- US1775576A US1775576A US367143A US36714329A US1775576A US 1775576 A US1775576 A US 1775576A US 367143 A US367143 A US 367143A US 36714329 A US36714329 A US 36714329A US 1775576 A US1775576 A US 1775576A
- Authority
- US
- United States
- Prior art keywords
- combustibly
- mold core
- destructible
- core
- destructible mold
- Prior art date
- 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
Links
- 239000000463 material Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Definitions
- This invention relates to-moldcores for use in casting hollow articles and specially water, gas and like pipes, and has been specially devised in order to expedite, cheapen and improve the manufacture of. combustibly destructible or reducible cores, which will be more efficient in use than those as hitherto manufactured.
- Mold cores are built up or formed upon hollow, solid or fluted barrels and consist of an inner, central, or first coat or layer of a combustibly destructible and reducible material and an external layer or covering of 10am.
- the improvement consists in producing the combustibly destructible or reducible inner or I first layer of a material consisting of a me chanical mixture of paper, either waste paper or paper pulp, and sand whereby the cost of production is reducedand the combustibility of such layer is increased thus rendering the cores more eiiicient and expeditious in use.
- the combustibly destructible or reducible material is produced by grinding paper, either Waste paper or paper pulp, and a small proportion of sand with addition of requisite water, preferably in which clay has been puddled into a fine state in any suitable grinding mill until the resultant material is in a wet mash consistency such as will not flow but will permit the material to be readily spread and applied upon a core barrel and will be of suflicient clinginess, adhesiveness or stickiness to cling and remain and keep its imparted form upon said barrel .as it is applied thereto.
- the produced material is formed to requisite thickness upon the core barrel in any con-' venient and suitable manner and if necessary 40 dried or partially dried in convenient manner, whereafter the core is built up to requisite 7 diameter or cross sectional shape or thickness with known material such as foundryloain and then dried for subsequent use.
- Cores for angular articles such as bends may be produced upon a core barrel of complementary contour, the improved material being applied thereon and formed to approximate dimensions, the loam covering being applied thereover and trued off in any con- 192 9. SerialNo. 367,143.
- the formed core then being dried for subsequent use.
- I claim A method of forming a mold core which consists in grinding paper, sand and requisite liquid into a moldable consistency, coating the core bar with this composition to form a combustible layer and then applying an external coatin of loam.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Description
Patented Sept. 9, 1930 UNITED STATES PATENT OFFICE ARTHUR CHARLES WATERS, F NEWCASTLE, NEW SOUTH WALES, AUSTRALIA V coMBUsTIBLY-nEsTnUoTIBLE MOLD CORE No Drawing. Application filed May 29,
This invention relates to-moldcores for use in casting hollow articles and specially water, gas and like pipes, and has been specially devised in order to expedite, cheapen and improve the manufacture of. combustibly destructible or reducible cores, which will be more efficient in use than those as hitherto manufactured.
Mold cores are built up or formed upon hollow, solid or fluted barrels and consist of an inner, central, or first coat or layer of a combustibly destructible and reducible material and an external layer or covering of 10am.
.5 The improvement consists in producing the combustibly destructible or reducible inner or I first layer of a material consisting of a me chanical mixture of paper, either waste paper or paper pulp, and sand whereby the cost of production is reducedand the combustibility of such layer is increased thus rendering the cores more eiiicient and expeditious in use.
The combustibly destructible or reducible material is produced by grinding paper, either Waste paper or paper pulp, and a small proportion of sand with addition of requisite water, preferably in which clay has been puddled into a fine state in any suitable grinding mill until the resultant material is in a wet mash consistency such as will not flow but will permit the material to be readily spread and applied upon a core barrel and will be of suflicient clinginess, adhesiveness or stickiness to cling and remain and keep its imparted form upon said barrel .as it is applied thereto.
The produced material is formed to requisite thickness upon the core barrel in any con-' venient and suitable manner and if necessary 40 dried or partially dried in convenient manner, whereafter the core is built up to requisite 7 diameter or cross sectional shape or thickness with known material such as foundryloain and then dried for subsequent use.
Cores for angular articles such as bends may be produced upon a core barrel of complementary contour, the improved material being applied thereon and formed to approximate dimensions, the loam covering being applied thereover and trued off in any con- 192 9. SerialNo. 367,143.
venient manner, the formed core then being dried for subsequent use.
I claim A method of forming a mold core which consists in grinding paper, sand and requisite liquid into a moldable consistency, coating the core bar with this composition to form a combustible layer and then applying an external coatin of loam.
ARTHUR dHARLEs WATERS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US367143A US1775576A (en) | 1929-05-29 | 1929-05-29 | Combustibly-destructible mold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US367143A US1775576A (en) | 1929-05-29 | 1929-05-29 | Combustibly-destructible mold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1775576A true US1775576A (en) | 1930-09-09 |
Family
ID=23446072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US367143A Expired - Lifetime US1775576A (en) | 1929-05-29 | 1929-05-29 | Combustibly-destructible mold core |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1775576A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466562A (en) * | 1944-09-21 | 1949-04-05 | Curtiss Wright Corp | Art of welding, plate and propeller blade construction |
| US2507390A (en) * | 1947-05-07 | 1950-05-09 | Whitchead Brothers Company | Baked cores for use in metal casting |
| US3290160A (en) * | 1963-09-03 | 1966-12-06 | Harbison Walker Refractories | Method of in situ fabrication of a monolith refractory lining or the like |
-
1929
- 1929-05-29 US US367143A patent/US1775576A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466562A (en) * | 1944-09-21 | 1949-04-05 | Curtiss Wright Corp | Art of welding, plate and propeller blade construction |
| US2507390A (en) * | 1947-05-07 | 1950-05-09 | Whitchead Brothers Company | Baked cores for use in metal casting |
| US3290160A (en) * | 1963-09-03 | 1966-12-06 | Harbison Walker Refractories | Method of in situ fabrication of a monolith refractory lining or the like |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1886429A (en) | Deodorant and moth-preventative | |
| US1775576A (en) | Combustibly-destructible mold core | |
| DE1683917A1 (en) | Manufacturing process of casting molds | |
| US1474817A (en) | Method of making wall coverings in imitation of natural stone | |
| US1573425A (en) | Process of making artificial stone | |
| US1212331A (en) | Manufacture of artificial-stone structures. | |
| GB325211A (en) | Improvements in or relating to the method and apparatus for manufacturing cast pipes, caisson sections and other articles made of cement or other plastic material | |
| US1507085A (en) | Process of making ornamental masonry articles | |
| US864387A (en) | Method of making decorative cloisonne designs. | |
| US1844647A (en) | Roofing tile and method of making | |
| DE2905609A1 (en) | Castings of imitation marble from gypsum and pigment - by using hard surfaced smooth moulds of acrylic! glass | |
| US1789449A (en) | Method of producing ornamental material for lamp shades and the like | |
| US1600674A (en) | Means for cementitious molding | |
| US1658015A (en) | Decorated glass and method of making same | |
| US1801737A (en) | Process for the treatment of varnished wall papers | |
| US706775A (en) | Forming statuary or other ornamental structures. | |
| US836638A (en) | Process for making tiles. | |
| US1739677A (en) | Method of manufacturing artificial stone | |
| US651705A (en) | Core and method of making same. | |
| US1770688A (en) | Molding material | |
| AT112237B (en) | Process for the production of electrical insulating material. | |
| DE441022C (en) | Mold for casting synthetic resins | |
| DE415767C (en) | Process for making jigger rolls and tubs | |
| US635900A (en) | Core for casting pipe. | |
| AT239689B (en) | Process for the production of objects from artificial stone with a synthetic resin surface |