GB419393A - Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar material - Google Patents
Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar materialInfo
- Publication number
- GB419393A GB419393A GB2023133A GB2023133A GB419393A GB 419393 A GB419393 A GB 419393A GB 2023133 A GB2023133 A GB 2023133A GB 2023133 A GB2023133 A GB 2023133A GB 419393 A GB419393 A GB 419393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- framework
- shell
- concrete
- roofs
- floors
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Artificial Fish Reefs (AREA)
- Revetment (AREA)
Abstract
419,393. Cores for concrete moulds. MATTHEWS, J. F., Meadowsweet, Lower Road, River, Dover. July 18, 1933, No. 20231. [Class 20 (ii).] A core for moulding hollows in blocks or cast concrete walls consists of a flexible shell and a collapsable framework which is removable from out of the shell. The shell E is formed of pliable sheet iron with longitudinal stiffeners A and bent over sides and the framework is formed of side bars J and cross bars B, the cross bars being attached to the side bars so that they can be turned about their axes and also be inclined to the side bars, so that the framework can collapse from a rectangular shape, Fig. 4, to that of a rhomboid, Fig. 5, for removal from the shell. Flexible bands D brace the cross bars together and maintain the framework in either expanded or collapsed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2023133A GB419393A (en) | 1933-07-18 | 1933-07-18 | Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2023133A GB419393A (en) | 1933-07-18 | 1933-07-18 | Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB419393A true GB419393A (en) | 1934-11-12 |
Family
ID=10142546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2023133A Expired GB419393A (en) | 1933-07-18 | 1933-07-18 | Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB419393A (en) |
-
1933
- 1933-07-18 GB GB2023133A patent/GB419393A/en not_active Expired
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