GB1368751A - Branch pipe connectors and connections - Google Patents

Branch pipe connectors and connections

Info

Publication number
GB1368751A
GB1368751A GB3776571A GB3776571A GB1368751A GB 1368751 A GB1368751 A GB 1368751A GB 3776571 A GB3776571 A GB 3776571A GB 3776571 A GB3776571 A GB 3776571A GB 1368751 A GB1368751 A GB 1368751A
Authority
GB
United Kingdom
Prior art keywords
drill
pipe
shaft
bit
screw
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
GB3776571A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3776571A priority Critical patent/GB1368751A/en
Publication of GB1368751A publication Critical patent/GB1368751A/en
Expired legal-status Critical Current

Links

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
    • F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0426—Drills for trepanning with centering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2215/00—Details of workpieces
    • B23B2215/72—Tubes, pipes

Abstract

1368751 Drilling pipes C W BLACKBURN 18 Oct 1972 [11 Aug 1971] 37765/71 Heading- B3C In order to drill a pipe 8, e.g. of plastics or asbestos, to which a split sleeve 2 having a flange 4 is to be permanently attached to form a branch pipe connection (see Specification 1,368,752), an elongated drill housing 28, 38 is secured to the flange 4 and has a threaded end, which mates with a tubular feed screw 40, through which a drill shaft 20 extends. Shaft 20 is driven by a high torque low speed compressed air motor 18, the torque reaction being transmitted by post 48 to bracket 50, through its sliding connection therewith. The drill bit is initially moved inwardly by abutment of the end of screw 40 with a shoulder 42 on shaft 20 to interengage the screw-threads. The motion is continued by rotating hand wheel 46, so that pilot bit 22 first penetrates the pipe wall, to centre the cutter 26. After cutting to a mark indicated on housing 38, the bit 22 retains the cut out part of the pipe, during retraction of the drill. When the apparatus is to be used for cutting a pipe 8 under fluid pressure, a sluice valve is interposed between flanges 4 and 29. Lip seal 34 prevents the fluid from rising up the drill shaft and a valved vent hole 52 is provided for flushing out the swarf.
GB3776571A 1972-10-18 1972-10-18 Branch pipe connectors and connections Expired GB1368751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3776571A GB1368751A (en) 1972-10-18 1972-10-18 Branch pipe connectors and connections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3776571A GB1368751A (en) 1972-10-18 1972-10-18 Branch pipe connectors and connections

Publications (1)

Publication Number Publication Date
GB1368751A true GB1368751A (en) 1974-10-02

Family

ID=10398856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3776571A Expired GB1368751A (en) 1972-10-18 1972-10-18 Branch pipe connectors and connections

Country Status (1)

Country Link
GB (1) GB1368751A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004193A1 (en) * 1979-02-09 1980-08-21 Robert Dardeau Lancaster TOOL FOR HANDLING A DEVICE TO BE USED IN A PRESSURE VESSEL
FR2553863A1 (en) * 1983-10-20 1985-04-26 Amblard Albert TOOLS FOR DRILLING PRESSURIZED FLUID PIPES
GB2251818A (en) * 1991-01-21 1992-07-22 British Gas Plc Pipe tapping apparatus
EP0870968A1 (en) * 1997-04-11 1998-10-14 Waterworks Technology Development Organization Co., Ltd. Connecting construction of a branch pipe and connecting method thereof
US5967168A (en) * 1997-04-10 1999-10-19 Waterworks Technology Development Organization Co., Ltd. Method of connecting branch pipe
GB2426220A (en) * 2005-05-18 2006-11-22 Hilcrest Design Ltd Pipe cutter
CN102962492A (en) * 2012-11-09 2013-03-13 上海煤气第二管线工程有限公司 Two-stage sheathing tapping machine and pipeline tapping method
CN106180806A (en) * 2016-09-08 2016-12-07 中铁十九局集团第七工程有限公司 Pipeline tapping equipment and pipeline tapping method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004193A1 (en) * 1979-02-09 1980-08-21 Robert Dardeau Lancaster TOOL FOR HANDLING A DEVICE TO BE USED IN A PRESSURE VESSEL
FR2553863A1 (en) * 1983-10-20 1985-04-26 Amblard Albert TOOLS FOR DRILLING PRESSURIZED FLUID PIPES
US4648422A (en) * 1983-10-20 1987-03-10 Albert Amblard Apparatus for drilling into a pipe under pressure
GB2251818A (en) * 1991-01-21 1992-07-22 British Gas Plc Pipe tapping apparatus
GB2251818B (en) * 1991-01-21 1995-01-04 British Gas Plc Pipe Tapping
US5967168A (en) * 1997-04-10 1999-10-19 Waterworks Technology Development Organization Co., Ltd. Method of connecting branch pipe
EP0870968A1 (en) * 1997-04-11 1998-10-14 Waterworks Technology Development Organization Co., Ltd. Connecting construction of a branch pipe and connecting method thereof
US5924436A (en) * 1997-04-11 1999-07-20 Waterworks Technology Development Organization Co., Ltd. Connecting construction of branch pipe and connecting method thereof
GB2426220A (en) * 2005-05-18 2006-11-22 Hilcrest Design Ltd Pipe cutter
GB2426220B (en) * 2005-05-18 2007-05-02 Hilcrest Design Ltd Improved pipe cutter
CN102962492A (en) * 2012-11-09 2013-03-13 上海煤气第二管线工程有限公司 Two-stage sheathing tapping machine and pipeline tapping method
CN106180806A (en) * 2016-09-08 2016-12-07 中铁十九局集团第七工程有限公司 Pipeline tapping equipment and pipeline tapping method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee