GB1289933A – – Google Patents
GB1289933A – – Google Patents
Info
Publication number
GB1289933A
GB1289933A
GB1289933DA
GB1289933A
GB 1289933 A
GB1289933 A
GB 1289933A
GB 1289933D A
GB1289933D A
GB 1289933DA
GB 1289933 A
GB1289933 A
GB 1289933A
Authority
GB
United Kingdom
Prior art keywords
sleeve
tube
recess
sleeves
portions
Prior art date
1971-01-21
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
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.)
1971-01-21
Filing date
1971-01-21
Publication date
1972-09-20
1971-01-21
Application filed
filed
Critical
1972-09-20
Publication of GB1289933A
publication
Critical
patent/GB1289933A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
239000011324
bead
Substances
0.000
abstract
4
PNEYBMLMFCGWSK-UHFFFAOYSA-N
Alumina
Chemical compound
[O-2].[O-2].[O-2].[Al+3].[Al+3]
PNEYBMLMFCGWSK-UHFFFAOYSA-N
0.000
abstract
3
239000000314
lubricant
Substances
0.000
abstract
3
239000011248
coating agent
Substances
0.000
abstract
2
238000000576
coating method
Methods
0.000
abstract
2
238000002360
preparation method
Methods
0.000
abstract
2
238000003466
welding
Methods
0.000
abstract
2
101100069231
Caenorhabditis elegans gkow-1 gene
Proteins
0.000
abstract
1
OKTJSMMVPCPJKN-UHFFFAOYSA-N
Carbon
Chemical compound
[C]
OKTJSMMVPCPJKN-UHFFFAOYSA-N
0.000
abstract
1
-1
Sb 2 O 3
Substances
0.000
abstract
1
229910001069
Ti alloy
Inorganic materials
0.000
abstract
1
RTAQQCXQSZGOHL-UHFFFAOYSA-N
Titanium
Chemical compound
[Ti]
RTAQQCXQSZGOHL-UHFFFAOYSA-N
0.000
abstract
1
239000011230
binding agent
Substances
0.000
abstract
1
238000011109
contamination
Methods
0.000
abstract
1
230000004927
fusion
Effects
0.000
abstract
1
229910002804
graphite
Inorganic materials
0.000
abstract
1
239000010439
graphite
Substances
0.000
abstract
1
239000011261
inert gas
Substances
0.000
abstract
1
230000013011
mating
Effects
0.000
abstract
1
239000000203
mixture
Substances
0.000
abstract
1
238000010926
purge
Methods
0.000
abstract
1
239000011347
resin
Substances
0.000
abstract
1
229920005989
resin
Polymers
0.000
abstract
1
239000010936
titanium
Substances
0.000
abstract
1
229910052719
titanium
Inorganic materials
0.000
abstract
1
230000000007
visual effect
Effects
0.000
abstract
1
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
F16L13/02—Welded joints
F16L13/0218—Welded joints having an inner or outer ring
F16L13/0236—Welded joints having an inner or outer ring having an outer ring
Abstract
1289933 Welding by fusion WEATHERHEAD CO 21 Jan 1971 2904/71 Heading B3R [Also in Division F2] In a welded end-to-end joint between tubular workpieces, such as tubes (Figs. 2, 3) or a tube and a fitting such as an elbow (Fig. 4), the mating ends of the workpieces are respectively provided with telescoping male spigoted and female recessed end preparations and at least one of said end preparations is formed by a sleeve tightly engaging the outer surface of a tube portion. The tubes may be of titanium or titanium alloy. As shown, tube end portions 10, 15 have tightly fitted thereon sleeves 14, 15 having end faces (34), (38) respectively extending beyond and set back from tube end faces 32, 36 to form said recess and spigot. The spigot is slightly shorter than the recess so as to provide an inert gas purge gap between the end faces 32, 36 on workpiece assembly. Each sleeve is slipped over its respective tube end portion and the latter is internally roll swaged so as to radially expand it into tight engagement with the sleeve. The end of the sleeve 14 is initially flared (Fig. 1) so that when its respective tube end portion expands the sleeve said flared portion becomes cylindrical. After assembling together the workpieces, a single weld bead 42 is formed by external arc welding, said bead extending to the inner tube surface and having an inner width at least equal to that of the gap 40 and an outer width at least twice the recess width. To minimize stress concentration, the ends of the sleeves remote from the weld bead are radiused at 54. To prevent galling or fretting, a lubricant film (49) is provided between the sleeves and tube portions at portions of the sleeves remote from the weld bead. The film (49) is preferably a dry lubricant such as MoS 2 , Sb 2 O 3 , graphite or mixtures thereof in a resin binder. Each sleeve may be vapour blasted with aluminium oxide before applying such lubricant coating thereto. The coating is preferably made on both the internal and external surfaces of each sleeve, to assist visual sleeve orientation, and may also be applied to the tube end portions, provided that weld contamination is avoided. In Fig. 4, the recess may be provided in the tube/sleeve assembly or, as shown, in a fitting 44.
GB1289933D
1971-01-21
1971-01-21
Expired
GB1289933A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB290471
1971-01-21
Publications (1)
Publication Number
Publication Date
GB1289933A
true
GB1289933A
(en)
1972-09-20
Family
ID=9748239
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1289933D
Expired
GB1289933A
(en)
1971-01-21
1971-01-21
Country Status (1)
Country
Link
GB
(1)
GB1289933A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US11518190B2
(en)
*
2017-10-23
2022-12-06
Hendrickson United Kingdom Ltd
Heavy-duty connections e.g. for axle/suspension systems
1971
1971-01-21
GB
GB1289933D
patent/GB1289933A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US11518190B2
(en)
*
2017-10-23
2022-12-06
Hendrickson United Kingdom Ltd
Heavy-duty connections e.g. for axle/suspension systems
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Legal Events
Date
Code
Title
Description
1973-01-31
PS
Patent sealed
1975-08-13
PLNP
Patent lapsed through nonpayment of renewal fees
