GB1413334A - Method of making hollow metal lamp post - Google Patents

Method of making hollow metal lamp post

Info

Publication number
GB1413334A
GB1413334A GB4978872A GB4978872A GB1413334A GB 1413334 A GB1413334 A GB 1413334A GB 4978872 A GB4978872 A GB 4978872A GB 4978872 A GB4978872 A GB 4978872A GB 1413334 A GB1413334 A GB 1413334A
Authority
GB
United Kingdom
Prior art keywords
tube
aperture
aluminium alloy
lamp post
lamp
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
Application number
GB4978872A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nedal N V
Original Assignee
Nedal N V
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nedal N V filed Critical Nedal N V
Publication of GB1413334A publication Critical patent/GB1413334A/en
Expired legal-status Critical Current

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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/003—Access covers or locks therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Abstract

1413334 Lamp posts NEDAL NV 27 Oct 1972 [28 Oct 1971] 49788/72 Heading E1B [Also in Division B3] A method of making a hollow, metal lamp post having a metal inner tube 3 comprises introducing the tube into an outer tube 1 and radially expanding the inner tube beyond the yield point of the material from which it is made to such a degree that its final external dimension is at least equal to the original inner dimension of the tube 1, the inner and outer tubes being formed of a heat treatable aluminium alloy or alloys and, before expansion, the tube 3 having been heat treated but not artificially aged, i.e. brought to the T-4 condition, and the tube 1 having been heat treated and artificially aged, i.e. brought to the T-6 condition access. The outer member of the lamp tube 3 is made from an aluminium alloy and the inner tube 3 is made from a different aluminium alloy. The tube 3 reinforces the outer tube at an aperture 2 therein and it is expanded by a mandrel 4. The aperture 2 may be made 'before the tube 3 is inserted, in which case an aperture'(7), Fig. 3 (not shown) is made in the tube which is smaller than the aperture 2, or the aperture may be cut in both tubes after assembly, Fig. 2 (not shown). The inner tube is secured by adhesive or by being expanded to such an extent that the member 1 is deformed elastically.
GB4978872A 1971-10-28 1972-10-27 Method of making hollow metal lamp post Expired GB1413334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7114828A NL173248C (en) 1971-10-28 1971-10-28 METHOD FOR MANUFACTURING A HOLLOW ALLOY LIGHT TOWER.

Publications (1)

Publication Number Publication Date
GB1413334A true GB1413334A (en) 1975-11-12

Family

ID=19814352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4978872A Expired GB1413334A (en) 1971-10-28 1972-10-27 Method of making hollow metal lamp post

Country Status (6)

Country Link
BE (1) BE790674A (en)
DE (1) DE2252675C2 (en)
DK (1) DK142958C (en)
GB (1) GB1413334A (en)
NL (1) NL173248C (en)
SE (1) SE392742B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320213A (en) * 1996-12-11 1998-06-17 Oliver Murphy A lamp post manufacturing process and apparatus
EP0913542A1 (en) * 1997-10-30 1999-05-06 Franke GmbH & Co. KG Steel tube mast and method for its replacement
EP2246504A1 (en) * 2009-04-27 2010-11-03 Europoles Sp. z.o.o. Conical mast
EP3342961A1 (en) 2016-12-30 2018-07-04 Rosa, Stanislaw Lamp post

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE863237A (en) * 1977-02-01 1978-07-24 Ugine Kuhlmann CATALYTIC EPOXIDATION PROCESS OF OLEFINS
NL8102558A (en) * 1981-05-25 1982-12-16 Alcoa Nederland Bv LIGHT POLE WITH REINFORCEMENT OF THE OPENING IN THE LOWER PART.
US5871140A (en) * 1993-08-16 1999-02-16 Mccrink; Edward J. Hollow shaft and method of making same
NL1009234C2 (en) * 1998-05-20 1999-11-25 Alcoa Nederland Bv Mast, preferably for use as light or flag mast, comprises tubular body, preferably of aluminum, in which is located access opening closed by hatch lockable in relation to body
NL1026416C2 (en) 2004-06-14 2005-12-15 Alcoa Nederland Bv Reinforced mast.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR710611A (en) * 1931-02-05 1931-08-27 Method of fixing a tube in a collar

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320213A (en) * 1996-12-11 1998-06-17 Oliver Murphy A lamp post manufacturing process and apparatus
GB2320213B (en) * 1996-12-11 1999-04-14 Oliver Murphy A lamp post manufacturing process and apparatus
EP0913542A1 (en) * 1997-10-30 1999-05-06 Franke GmbH & Co. KG Steel tube mast and method for its replacement
EP2246504A1 (en) * 2009-04-27 2010-11-03 Europoles Sp. z.o.o. Conical mast
EP3342961A1 (en) 2016-12-30 2018-07-04 Rosa, Stanislaw Lamp post

Also Published As

Publication number Publication date
NL7114828A (en) 1973-05-02
DE2252675A1 (en) 1973-05-03
DK142958C (en) 1981-11-02
NL173248B (en) 1983-08-01
BE790674A (en) 1973-04-27
DE2252675C2 (en) 1985-05-30
NL173248C (en) 1984-01-02
SE392742B (en) 1977-04-18
DK142958B (en) 1981-03-02

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years