GB464436A - Improvements in or relating to the pressing or moulding of sheet material - Google Patents
Improvements in or relating to the pressing or moulding of sheet materialInfo
- Publication number
- GB464436A GB464436A GB2885835A GB2885835A GB464436A GB 464436 A GB464436 A GB 464436A GB 2885835 A GB2885835 A GB 2885835A GB 2885835 A GB2885835 A GB 2885835A GB 464436 A GB464436 A GB 464436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- former
- sheet material
- pivoted
- parts
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
464,436. Moulding sheet material. HUTCHINSON, W. V. Oct. 18, 1935, Nos. 28858/35, 32504/35, and 24872/36. [Class 87 (ii)] Sheet material, such as cellulose acetate, that can be softened by heat or other treatment, is moulded to form bowed, bulged, or convexed parts for use on aircraft &c., by attaching the material to a frame having one or more yielding parts and drawing it over a former. In the form shown in Fig. 1, the sheet material is secured at the points 9, 10 of a frame 1 having members 5, 7 hinged at the points 6, 8, 5b. Weights 13 are applied to the corners of the frame and to the pivoted members 5, 7. The frame 1 is placed over the former 2, and the material is heated by a hood supplied with gas burners and lowered over the frame and he former. The pivoted members 5, 7 allow of the flow of material necessitated by the sharply curved parts 4 of the former 2. In a modification two triangular parts are hinged to the frame for producing articles steeply curved at each end. In some cases, the sheet is held in the frame so as to yield in two directions, and is clamped in blocks 21, Fig. 8, slidable in a bar 19 pivoted to the frame 1. In another form, the frame is provided at the part where a large flow of material takes place during moulding with a clamp mounted on a bolt pivoted in the frame. In the form shown in Fig. 7, the sheet material 3 is secured at 25 to a bar 26 at the edge of the former 28, to clamps 31 carrying weights, and to a clamp 31a acted upon by a weighted cord 33 passing over a pulley 32 and secured at Y to the support for the former 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2885835A GB464436A (en) | 1935-10-18 | 1935-10-18 | Improvements in or relating to the pressing or moulding of sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2885835A GB464436A (en) | 1935-10-18 | 1935-10-18 | Improvements in or relating to the pressing or moulding of sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB464436A true GB464436A (en) | 1937-04-19 |
Family
ID=10282295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2885835A Expired GB464436A (en) | 1935-10-18 | 1935-10-18 | Improvements in or relating to the pressing or moulding of sheet material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB464436A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885732A (en) * | 1954-03-22 | 1959-05-12 | Libbey Owens Ford Glass Co | Shaping plastic sheets |
| FR2338781A1 (en) * | 1976-01-26 | 1977-08-19 | Smith George | Machine for moulding mudguards - with thermoplastic sheet ends gripped on moving carriages whilst formed by central tool |
| FR2364112A1 (en) * | 1976-09-13 | 1978-04-07 | Ici Ltd | INJECTION MOLDING PROCESS ON A PREFORMED TAPE |
| FR2855451A1 (en) * | 2003-05-27 | 2004-12-03 | Sam L Atelier Numerique | Plastic furniture manufacturing procedure consists of cutting out, printing design, heating along fold lines and folding to shape |
| US12060682B2 (en) | 2018-07-19 | 2024-08-13 | Celwise Ab | Laminated structure and method of its production |
-
1935
- 1935-10-18 GB GB2885835A patent/GB464436A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885732A (en) * | 1954-03-22 | 1959-05-12 | Libbey Owens Ford Glass Co | Shaping plastic sheets |
| FR2338781A1 (en) * | 1976-01-26 | 1977-08-19 | Smith George | Machine for moulding mudguards - with thermoplastic sheet ends gripped on moving carriages whilst formed by central tool |
| FR2364112A1 (en) * | 1976-09-13 | 1978-04-07 | Ici Ltd | INJECTION MOLDING PROCESS ON A PREFORMED TAPE |
| FR2855451A1 (en) * | 2003-05-27 | 2004-12-03 | Sam L Atelier Numerique | Plastic furniture manufacturing procedure consists of cutting out, printing design, heating along fold lines and folding to shape |
| US12060682B2 (en) | 2018-07-19 | 2024-08-13 | Celwise Ab | Laminated structure and method of its production |
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