GB735770A - Improvements in methods of and apparatus for making shell moulds - Google Patents
Improvements in methods of and apparatus for making shell mouldsInfo
- Publication number
- GB735770A GB735770A GB2968052A GB2968052A GB735770A GB 735770 A GB735770 A GB 735770A GB 2968052 A GB2968052 A GB 2968052A GB 2968052 A GB2968052 A GB 2968052A GB 735770 A GB735770 A GB 735770A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- pattern
- pattern plate
- plate
- mould
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Tables And Desks Characterized By Structural Shape (AREA)
- Micromachines (AREA)
Abstract
735,770. Moulding-processes. POLYGRAM CASTING CO., Ltd. Nov. 23, 1953 [Nov. 24, 1952], No. 29680/52. Drawings to Specification. Class 83 (1). In a shell moulding process, a frame is attached around and at or near the edges of the working face of the pattern plate so as to stand up therefrom, and after the frame has been disconnected from the pattern-plate the frame and the half-mould thereon are stripped from the pattern plate and pattern by applying a force tending to separate the frame from the pattern plate by means acting otherwise than through holes in the pattern plate. The frame, or lugs or projections thereon, may project beyond the edge of the pattern plate. The frame and mould are stripped from the pattern by exerting force on 'the projecting portions, e.g. by an ejector mechanism moving perpendicularly to the plane of the frame, while the pattern plate is held, or the projecting portions may be rested on a support, e.g. a number of spaced vertical posts, while the pattern and plate are caused to drop away by giving the mould a tap or by lifting the support carrying the assembly and dropping it on a solid surface. Alternatively wedges may be inserted between the frame and pattern plate. In a further modification the pattern plate is made of magnetic material and pulled away by magnetic means. Alternatively the pattern plate may project beyond the frame and the forces be applied to the projecting parts of the pattern plate. The cross-section of the frame members may be concave on the inside as described in Specification 716,251, which is referred to, or such as to enable the mould to be removed from the frame after moulding. The frame may be of aluminium or aluminium alloy with a base of stiffer material such as sheet steel, and the pattern plate may be of cast iron or aluminium. Half-patterns may be mounted on each side of the pattern plate and removable legs may be fitted to the plate so that they may be changed from one side to the other to keep the half-pattern mounted on the underside clear of the bench when that side is not in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2968052A GB735770A (en) | 1952-11-24 | 1952-11-24 | Improvements in methods of and apparatus for making shell moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2968052A GB735770A (en) | 1952-11-24 | 1952-11-24 | Improvements in methods of and apparatus for making shell moulds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB735770A true GB735770A (en) | 1955-08-31 |
Family
ID=10295380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2968052A Expired GB735770A (en) | 1952-11-24 | 1952-11-24 | Improvements in methods of and apparatus for making shell moulds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB735770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773410A (en) * | 2012-08-09 | 2012-11-14 | 浙江动发能源科技有限公司 | Electromagnetic mold production method and equipment |
-
1952
- 1952-11-24 GB GB2968052A patent/GB735770A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773410A (en) * | 2012-08-09 | 2012-11-14 | 浙江动发能源科技有限公司 | Electromagnetic mold production method and equipment |
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