GB492738A - Improvements in or relating to the manufacture of cylindrical bodies of plywood - Google Patents
Improvements in or relating to the manufacture of cylindrical bodies of plywoodInfo
- Publication number
- GB492738A GB492738A GB35126/36A GB3512636A GB492738A GB 492738 A GB492738 A GB 492738A GB 35126/36 A GB35126/36 A GB 35126/36A GB 3512636 A GB3512636 A GB 3512636A GB 492738 A GB492738 A GB 492738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylindrical
- mould
- sheets
- helical
- casks
- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
- B27D1/086—Manufacture of oblong articles, e.g. tubes by spirally winding veneer blanks
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Buffer Packaging (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
492,738. Making cylindrical bentwood articles ; casks ; tubes ; boxes. LUSTY & SONS, Ltd., W. Dec. 21, 1936, No. 35126. Void. Convention date, Dec. 21, 1935. [Class 145 (ii)] [Also in Groups XVII and XXVIII] Cylindrical bodies, such as casks and tubes, formed of bent superposed sheets of wood, such as plywood, glued together under pressure in a cylindrical former, are constructed with helical joints between the meeting edges of each sheet. The sheets 15, Fig. 1, are cut with parallel sides J9, 20 oblique to the remaining sides so that when the sheet is bent to a cylindrical form the edges 19, 20 meet to form the helical joint. A number of sheets 15a, 15b, 15c are assembled, after glueing, in a two-part cylindrical mould 18, 18a, which may be provided with conduits 25 for heating fluid, and end pressure is exerted on the sheets by end plates 21, 22. This causes radial expansion of the shells owing to relative sliding at the helical joints of the meeting edges, the pressure necessary for the glueing being thus produced. Fig. 8 shows a construction of cask in which the end is formed of superposed discs 17a, 17b, 17c, the outer of which is of greater diameter than the others and overlaps the end of the body, being secured by loops or rings 30, 31. An annular space 32 round the edge of the disc 17a may be packed with rubber, cotton, felt, ductile metal or the like to form a safety joint, and a U-section metallic hoop 33 may be pressed on to the end assemblage. The mould is provided with a metal packing member 33 formed by two semi-cylinders to occupy the space between the projecting end hoops. The construction of casks, boxes, &c., from one or more shells with either helical or straight bevelled joints in a mould having an internal cylindrical mandrel is also referred to, the pressure being produced by closing the mould or expanding the mandrel. Fig. 12 shows one shell of a section of a tube, the internal shells being successively displaced axially by their semi-length.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE492738X | 1935-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492738A true GB492738A (en) | 1938-09-26 |
Family
ID=3870628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35126/36A Expired GB492738A (en) | 1935-12-21 | 1936-12-21 | Improvements in or relating to the manufacture of cylindrical bodies of plywood |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE412937A (en) |
| GB (1) | GB492738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2582065A (en) * | 1948-05-18 | 1952-01-08 | Rasor Orval | Method of constructing cylindrical containers |
| DE1106677B (en) * | 1956-01-20 | 1961-05-10 | Bataafsche Petroleum | Liquid container of circular cylinder shape made of wood with an outer metal wall |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549646B (en) * | 2021-01-02 | 2023-02-24 | 益阳湘芬纸业包装股份有限公司 | Removal of packing carton processing usefulness glues punch-out equipment |
-
1935
- 1935-12-21 BE BE412937D patent/BE412937A/xx unknown
-
1936
- 1936-12-21 GB GB35126/36A patent/GB492738A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2582065A (en) * | 1948-05-18 | 1952-01-08 | Rasor Orval | Method of constructing cylindrical containers |
| DE1106677B (en) * | 1956-01-20 | 1961-05-10 | Bataafsche Petroleum | Liquid container of circular cylinder shape made of wood with an outer metal wall |
Also Published As
| Publication number | Publication date |
|---|---|
| BE412937A (en) | 1936-01-31 |
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