GB1144593A - A method for the manufacture of rectangular ducts - Google Patents
A method for the manufacture of rectangular ductsInfo
- Publication number
- GB1144593A GB1144593A GB2570066A GB2570066A GB1144593A GB 1144593 A GB1144593 A GB 1144593A GB 2570066 A GB2570066 A GB 2570066A GB 2570066 A GB2570066 A GB 2570066A GB 1144593 A GB1144593 A GB 1144593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- folded
- cut
- transversely
- adjacent
- rollers
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Duct Arrangements (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
1,144,593. Making ventilation ducts. SVENSKA FLAKTFABRIKEN A.B. 9 June, 1966 [9 June, 1965], No. 25700/66. Heading B3A. A rectangular ventilation duct is formed by joining two metal strips (3), (4), Fig. 1 (not shown), in parallel to form a single web blank which is cut transversely and the cut-off portion folded transversely so that the joint between the strips extends around the periphery of the duct. The strips (3), (4) are longitudinally grooved by rollers (5) and their adjacent edges folded by rollers (6) into complementary S- shapes which are interengaged and folded together. The free edges of the resultant web are folded by rollers (8) to form flanges 12. The web is cut transversely (9) and the cut-off portion folded transversely, with the grooves 11 and joint 10 extending around the periphery of the duct and the longitudinal edge joined together. Adjacent ducts are joined together by shaped rails pushed over a pair of adjacent flanges. An elastic strip may be placed between the adjacent faces 12a.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE753665 | 1965-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1144593A true GB1144593A (en) | 1969-03-05 |
Family
ID=20271634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2570066A Expired GB1144593A (en) | 1965-06-09 | 1966-06-06 | A method for the manufacture of rectangular ducts |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT263510B (en) |
BE (1) | BE682313A (en) |
CH (1) | CH448943A (en) |
DE (1) | DE1527909A1 (en) |
DK (1) | DK133368B (en) |
ES (1) | ES327600A1 (en) |
GB (1) | GB1144593A (en) |
NL (1) | NL6607945A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1981003630A1 (en) * | 1980-06-11 | 1981-12-24 | S Norlund | A blank for manufacturing an air duct of rectangular cross section |
ES2270649A1 (en) * | 2003-10-21 | 2007-04-01 | Schako Metallwarenfabrik Ferdinand Schad Kg | Producing tip for twisted tube, involves wrapping straightened, cut sections of metal strip into cylinders, welding and twisting |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU80144A1 (en) * | 1978-08-22 | 1980-04-21 | Arbed | PROCESS AND INSTALLATION FOR THE MANUFACTURE OF TUBULAR BODIES |
DE19510121C2 (en) * | 1995-03-21 | 1999-10-07 | Rolf Wissner | Process for producing a curved wall from a strip-like starting material with parallel side edges and parallel longitudinal edges |
-
1966
- 1966-06-06 ES ES0327600A patent/ES327600A1/en not_active Expired
- 1966-06-06 GB GB2570066A patent/GB1144593A/en not_active Expired
- 1966-06-07 AT AT542366A patent/AT263510B/en active
- 1966-06-08 DK DK294266A patent/DK133368B/en unknown
- 1966-06-08 DE DE19661527909 patent/DE1527909A1/en active Pending
- 1966-06-08 CH CH825366A patent/CH448943A/en unknown
- 1966-06-08 NL NL6607945A patent/NL6607945A/xx unknown
- 1966-06-09 BE BE682313D patent/BE682313A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1981003630A1 (en) * | 1980-06-11 | 1981-12-24 | S Norlund | A blank for manufacturing an air duct of rectangular cross section |
ES2270649A1 (en) * | 2003-10-21 | 2007-04-01 | Schako Metallwarenfabrik Ferdinand Schad Kg | Producing tip for twisted tube, involves wrapping straightened, cut sections of metal strip into cylinders, welding and twisting |
Also Published As
Publication number | Publication date |
---|---|
CH448943A (en) | 1967-12-31 |
BE682313A (en) | 1966-11-14 |
DK133368B (en) | 1976-05-10 |
DE1527909A1 (en) | 1970-04-23 |
DK133368C (en) | 1976-10-04 |
ES327600A1 (en) | 1967-03-16 |
AT263510B (en) | 1968-07-25 |
NL6607945A (en) | 1966-12-12 |
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