GB1102592A – Methods and apparatus for forming screw threads and screw threaded assemblies so formed
– Google Patents
GB1102592A – Methods and apparatus for forming screw threads and screw threaded assemblies so formed
– Google Patents
Methods and apparatus for forming screw threads and screw threaded assemblies so formed
Info
Publication number
GB1102592A
GB1102592A
GB23771/64A
GB2377164A
GB1102592A
GB 1102592 A
GB1102592 A
GB 1102592A
GB 23771/64 A
GB23771/64 A
GB 23771/64A
GB 2377164 A
GB2377164 A
GB 2377164A
GB 1102592 A
GB1102592 A
GB 1102592A
Authority
GB
United Kingdom
Prior art keywords
tube
collar
mandrel
bushings
pin
Prior art date
1964-06-09
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
GB23771/64A
Inventor
John Wallis Shirley
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.)
WELLINGTON ENGINEERING WORKS L
Original Assignee
WELLINGTON ENGINEERING WORKS L
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.)
1964-06-09
Filing date
1964-06-09
Publication date
1968-02-07
1964-06-09
Application filed by WELLINGTON ENGINEERING WORKS L
filed
Critical
WELLINGTON ENGINEERING WORKS L
1964-06-09
Priority to GB23771/64A
priority
Critical
patent/GB1102592A/en
1965-06-08
Priority to US462316A
priority
patent/US3355929A/en
1965-06-08
Priority to ES0313965A
priority
patent/ES313965A1/en
1965-06-08
Priority to NL6507243A
priority
patent/NL6507243A/xx
1965-06-09
Priority to BE665138D
priority
patent/BE665138A/xx
1968-02-07
Publication of GB1102592A
publication
Critical
patent/GB1102592A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
B21D17/025—Forming single grooves in sheet metal or tubular or hollow articles by pressing by pressing tubes axially
Abstract
1,102,592. Making threaded tubes; forging. WELLINGTON ENGINEERING WORKS Ltd. 1 June, 1965 [9 June, 1964 (2)], Nos. 23771 and 23772/64. Headings B3A and B3H. [Also in Division B5] An external thread is formed on a metal or synthetic resin tube by compressing the tube axially between dies while supported by a mandrel. The thread 98, Fig. 6, can be single- or multi-start and extends from an axial slot 96 previously formed in the tube. The end 97 of the tube is clamped within pivoted half-bushings 78 and 79 (Fig. 3, not shown) operated through levers 71 and 72 from an hydraulic cylinder 67. Between the tube end and bushings and attached to the bushings, are half dies 57 whose end faces 61, Fig. 4, combine to form a helical surface. Coaxial with the tube is an hydraulic ram 20 to which is attached, with the interposition of spacers 30, 32 and 35, and a collar 36, a mandrel 34 with a reduced end 40. Surrounding the mandrel and held within a sleeve 42 is a second die 45 which is of cylindrical form with its left hand end formed with a helical surface (Fig. 5, not shown) corresponding to the faces 61. As the ram 20 is moved to the left the mandrel enters the tube and the wall of the tube is forced into the space between the helical faces of the die ports 57 and 45. A pin 86 which co-operates with the axial slot in the tube for location purposes, is withdrawn from the slot during thread forming by the action of a cam follower 39 attached to the collar 36 pivoting a lever 53 operatively connected to the pin. The outer tube 100 (Fig. 8, not shown) of a scaffolding prop can conveniently be threaded in this manner, an inner tube 103 sliding within the tube 100, and a collar 109 being threaded on its end. Adjustment of the length of the prop is made by choosing an appropriate hole 105 for a pin 106 and finely adjusting the length by rotating the collar 109.
GB23771/64A
1964-06-09
1964-06-09
Methods and apparatus for forming screw threads and screw threaded assemblies so formed
Expired
GB1102592A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB23771/64A
GB1102592A
(en)
1964-06-09
1964-06-09
Methods and apparatus for forming screw threads and screw threaded assemblies so formed
US462316A
US3355929A
(en)
1964-06-09
1965-06-08
Methods for forming screw threads
ES0313965A
ES313965A1
(en)
1964-06-09
1965-06-08
A method of threading a pipe of a material capable of plastic deformation. (Machine-translation by Google Translate, not legally binding)
NL6507243A
NL6507243A
(en)
1964-06-09
1965-06-08
BE665138D
BE665138A
(en)
1964-06-09
1965-06-09
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
GB23771/64A
GB1102592A
(en)
1964-06-09
1964-06-09
Methods and apparatus for forming screw threads and screw threaded assemblies so formed
GB2377264
1964-06-09
Publications (1)
Publication Number
Publication Date
GB1102592A
true
GB1102592A
(en)
1968-02-07
Family
ID=26256707
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB23771/64A
Expired
GB1102592A
(en)
1964-06-09
1964-06-09
Methods and apparatus for forming screw threads and screw threaded assemblies so formed
Country Status (4)
Country
Link
BE
(1)
BE665138A
(en)
ES
(1)
ES313965A1
(en)
GB
(1)
GB1102592A
(en)
NL
(1)
NL6507243A
(en)
1964
1964-06-09
GB
GB23771/64A
patent/GB1102592A/en
not_active
Expired
1965
1965-06-08
ES
ES0313965A
patent/ES313965A1/en
not_active
Expired
1965-06-08
NL
NL6507243A
patent/NL6507243A/xx
unknown
1965-06-09
BE
BE665138D
patent/BE665138A/xx
unknown
Also Published As
Publication number
Publication date
BE665138A
(en)
1965-10-01
NL6507243A
(en)
1965-12-10
ES313965A1
(en)
1966-03-01
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