GB2223438A - A hand tool to render pipes and tubes bendable - Google Patents

A hand tool to render pipes and tubes bendable Download PDF

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Publication number
GB2223438A
GB2223438A GB8821824A GB8821824A GB2223438A GB 2223438 A GB2223438 A GB 2223438A GB 8821824 A GB8821824 A GB 8821824A GB 8821824 A GB8821824 A GB 8821824A GB 2223438 A GB2223438 A GB 2223438A
Authority
GB
United Kingdom
Prior art keywords
tube
hand tool
pipes
tubes
bendable
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.)
Withdrawn
Application number
GB8821824A
Other versions
GB8821824D0 (en
Inventor
John * Spargo Malcolm
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 GB8821824A priority Critical patent/GB2223438A/en
Publication of GB8821824D0 publication Critical patent/GB8821824D0/en
Publication of GB2223438A publication Critical patent/GB2223438A/en
Withdrawn legal-status Critical Current

Links

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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • 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
    • 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
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The tool comprises an adjustable clamp 4 hinged to a body 5 which forms a support for the tube. A hardened wheel 2 or blade 7 is mounted askew within the clamp 4 so that rotation of the tool while clamped to the tube impresses a helical track in the tube. A screw adjustment 3 sets the depth of the hardened blade or wheel which is removable for replacement. <IMAGE>

Description

A HAND TOOL FO-t THE MANIPULATION OF OF TUBIr. & This invention relates to a hand tool to enable the manipulation and forming of malleable pipes and tubes.
Copper and other malleable tubing is commonly bent to different angles or combinations of angles to avoid obstacles, for example in domestic plumbing situations.
The equipment normally used to achieve these bends is bulky and relatively expensive and is limited in the degree of the angles and the complexity of the combination of angles that can be achieved.
As a result, the fitter is frequently required to use elbows or other couplings to achieve the desired pattern of pipe run.
According to the present invention there is provided a hand tool which clamps to the tube and when rotated about the tube will score or impress a thread-like groove into the surface of the tube; this will make the tubing sufficiently malleable to be hand bent and formed to any angle or profile required.
Tubing thus treated will provide a safety expansion area to safeguard pipe from rupturing when frozen. Long lengths of tubing formed in this manner could replace plastic in situations where heat, rodents or contour present problems.
A specific embodiment of the invention will now be described with reference to the accompanying drawings in which: Figure 1 shows a plan view; Figure 2 shows a side elevation; Figure 3 shows alternative pin replacing roller.
Referring to the drawing, the invention comprises a hinged tool which may be closed and clamped around a section of tubing (detail 1).
When the tool is rotated, the forming wheel 2 or pin 7 indents a spiralled track in the outer wall of the tube of sufficient pitch and depth to enable the tube to be subsequently bent and formed by hand without the walls of the tube splitting or collapsing, and without the tube pinching.
The forming wheel or pin will be manufactured of hardened and tempered steel and pre-set to a specific angle so that as the tool is rotated about the tube a helical track is scored or indented.
The clamp screw (detail 3) is adjustable so that the tool can be clamped to different diameters of tube. The forming wheel 2 or pin 7 is adjustable so that in operation it is possible to vary the depth of the indent channelled into the tubing.

Claims (4)

1. A hand tool comprising a body which clamps over a pipe or tube and which incorporates a hardened wheel or pin which on rotation impresses a helical track into the outer wall of the pipe or tube.
2. A hand tool as claimed in claim 1 which is adjustable to fit over various diameters of pipe or tube.
3. A hand tool as claimed in claim 1 and claim 2 which is adjustable to vary the depth of indent into the wall of the pipe or tube.
4. A hand tool as claimed in claim 1 in which the hardened pin or wheel is removable to enable replacement.
GB8821824A 1988-09-16 1988-09-16 A hand tool to render pipes and tubes bendable Withdrawn GB2223438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8821824A GB2223438A (en) 1988-09-16 1988-09-16 A hand tool to render pipes and tubes bendable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8821824A GB2223438A (en) 1988-09-16 1988-09-16 A hand tool to render pipes and tubes bendable

Publications (2)

Publication Number Publication Date
GB8821824D0 GB8821824D0 (en) 1988-10-19
GB2223438A true GB2223438A (en) 1990-04-11

Family

ID=10643749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8821824A Withdrawn GB2223438A (en) 1988-09-16 1988-09-16 A hand tool to render pipes and tubes bendable

Country Status (1)

Country Link
GB (1) GB2223438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105312436A (en) * 2015-12-05 2016-02-10 重庆腾通工业设计有限公司 Fixing device for rod work-piece machining

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB846328A (en) * 1957-11-30 1960-08-31 R D Dev Lancs Ltd Improvements relating to the attachment of hose couplings
GB947811A (en) * 1960-01-05 1964-01-29 Lamure & Cie S A Improvements in or relating to tube cutting apparatus
GB1323679A (en) * 1969-10-28 1973-07-18 Pyrotenax Ltd Hand tool for cutting cable sheaths

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB846328A (en) * 1957-11-30 1960-08-31 R D Dev Lancs Ltd Improvements relating to the attachment of hose couplings
GB947811A (en) * 1960-01-05 1964-01-29 Lamure & Cie S A Improvements in or relating to tube cutting apparatus
GB1323679A (en) * 1969-10-28 1973-07-18 Pyrotenax Ltd Hand tool for cutting cable sheaths

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105312436A (en) * 2015-12-05 2016-02-10 重庆腾通工业设计有限公司 Fixing device for rod work-piece machining

Also Published As

Publication number Publication date
GB8821824D0 (en) 1988-10-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)