WO2015021492A1 - A portable poly (polyethylene) pipe borer - Google Patents

A portable poly (polyethylene) pipe borer Download PDF

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Publication number
WO2015021492A1
WO2015021492A1 PCT/AU2013/000908 AU2013000908W WO2015021492A1 WO 2015021492 A1 WO2015021492 A1 WO 2015021492A1 AU 2013000908 W AU2013000908 W AU 2013000908W WO 2015021492 A1 WO2015021492 A1 WO 2015021492A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
poly
borer
frame
joined
Prior art date
Application number
PCT/AU2013/000908
Other languages
French (fr)
Inventor
Damien Wade EMERY
Original Assignee
Emery Engineering Pty Ltd
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 Emery Engineering Pty Ltd filed Critical Emery Engineering Pty Ltd
Priority to PCT/AU2013/000908 priority Critical patent/WO2015021492A1/en
Publication of WO2015021492A1 publication Critical patent/WO2015021492A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/003—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for drilling elongated pieces, e.g. beams
    • B23B41/006—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for drilling elongated pieces, e.g. beams the machining device being moved along a fixed workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/103—Deburring or chamfering tools for the ends of tubes or rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8414—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different diameter
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/61—Plastics not otherwise provided for, e.g. nylon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling

Definitions

  • This invention relates to the coal seam gas industry and more specifically but not exclusively to a poly (polyethylene) pipe borer apparatus to machine poly pipes of different internal diameters or bores to be joined.
  • the invention resides in a portable polyethylene or poly pipe borer apparatus comprising in combination:
  • the borer adapted to be installed and removed from a pipe joining frame for holding in position poly pipes to be joined;
  • the cutter adapted to be advanced against an open end of a first poly pipe held in the frame; wherein on boring the first poly pipe , the borer is removed and a second poly pipe located in the frame to be joined to the first pipe.
  • the pipe borer is powered by a hydraulic motor.
  • the pipe borer is powered by an electric motor.
  • the pipe borer is hand powered.
  • the pipe borer and rotary cutter are advanced as a unit against the open end of the first poly pipe.
  • the pipe borer is stationery in the frame and the cutter mounted on an extendible shaft and advanced against the open end of the first poly pipe.
  • the pipe joining frame is a jig comprising a pair of opposed hinged cage sections adapted to encircle and grip poly pipes of substantially same outside diameters to be joined together.
  • the pipe borer is of a size and configuration consistent with the size and configuration of poly pipe being joined wherein the pipe borer is readily removed from and replaced with the second poly pipe in the joining frame.
  • the cutter has one or more adjustable blades wherein the size of the bore can be varied.
  • the invention resides in a method of joining poly pipes of different wall thicknesses using the pipe borer apparatus as hereinbefore described including the steps of:
  • the invention resides in poly pipes joined by use of the poly pipe borer apparatus or by the method as herein before described.
  • Figure 1 shows a preferred poly pipe borer apparatus according to the invention.
  • Figure 2 shows the borer on completion of boring a pipe.
  • Figure 3 shows replacement of the borer with a pipe to be joined.
  • FIG. 1 there is shown a portable polyethylene or poly pipe borer apparatus 10 according to the invention.
  • the pipe borer 12 powered by hydraulic motor 13 has a rotary cutter 14 and is installed and removed from the pipe joining frame 15 adapted for holding in position poly pipes to be joined.
  • the cutter 14 is advanced against an open end of the poly pipe 16 held in the frame.
  • the borer 12 can then be removed as shown in Figure 2 and a second poly pipe 18 located in the frame to be joined to the first pipe 16 shown by Figure 3.
  • the pipe borer is powered by a hydraulic motor and the pipe borer 12 and rotary cutter 14 are advanced as a unit against the open end of the first poly pipe 16.
  • the pipe borer can be stationery in the frame and the cutter mounted on an extendible shaft and advanced against the open end of the first poly pipe.
  • the pipe borer 12 is of a size and configuration consistent with the size and configuration of poly pipe being joined wherein the pipe borer 12 is removed from and replaced with the second poly pipe 18 in the joining frame.
  • the cutter 14 has one or more adjustable blades (not shown) wherein the size of the bore can be varied.
  • Figures 2 and 3 show the method of joining poly pipes of different wall thicknesses using the apparatus of Figure 1.
  • a first poiy pipe is secured in the joining frame 15.
  • the pipe joining frame is a jig comprising a pair of opposed hinged cage sections 15a, 15b adapted to encircle and grip poly pipes of substantially the same outside diameters to be joined together.
  • the pipe borer 12 is installed in the frame and used to bore the first poly pipe 16 to match the wall thickness of the second poly pipe 18.
  • the frame 15 is opened to remove the pipe borer 12 from the frame.
  • the second poly pipe 18 is secured against the bored first poly pipe 16, which is then joined to the first poly pipe 16 by heat welding as shown in Figure 3.
  • VARIATIONS VARIATIONS

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A portable polyethylene or poly pipe borer apparatus comprising a pipe borer having a rotary cutter adapted to be installed and removed from a pipe joining frame; the cutter adapted to be advanced against an open end of a first pipe in the frame wherein on boring the pipe, the borer is removed and a second pipe located in the frame to be joined to the first pipe. A method of use of the same.

Description

A PORTABLE POLY (POLYETHYLENE) PIPE BORER
FIELD OF THE INVENTION
This invention relates to the coal seam gas industry and more specifically but not exclusively to a poly (polyethylene) pipe borer apparatus to machine poly pipes of different internal diameters or bores to be joined.
BACKGROUND ART
The use of polyethylene or commonly, poly pipe in the burgeoning coal seam gas (CSG) industry in Australia is well known. Prior art poly pipe is often supplied with different wall thicknesses. This makes heat welding pipes of different internal diameters unsafe due to non uniform heat transfer resulting in an unacceptable join pursuant to Australian and most universal safety standards. Australian standards for the industry specify that different wall thickness pipes are not allowed to be welded. All welded pipes must be of the same wall thickness to a specified length depending on internal diameter and particular application. The pipe outside diameter does not change. Thinner walled pipe is used to save costs where large pressure is not involved whereas thicker walled pipe is used in high risk traffic areas such as under roads. Most coal seam gas plants are also located in remote sites remote from the pipe manufacturers and suppliers. Currently, short lengths of pipe are cut; face machined and bored to a predetermined internal diameter as transition or joining pieces off site. They are then welded onto longer lengths of poly pipe on site. This results in a huge wastage as only sixty to seventy percent (60%- 70%) of the machined poly pipes prepared off site are used. The prior art includes extra welding which is costly and time consuming.
It is therefore an object of the invention to provide a solution whereby lengths of poly pipe can be machined on site to avoid lengthy delays in supply, transport or problems associated with incorrectly sized components. It is another objective that there is less welding involved to comply with testing requirements with a reduction in safety concerns and wherein the speed and time saved in being able to join poly pipes of different wall thicknesses on site are the invention's greatest advantages. STATEMENT OF THE INVENTION
In one aspect the invention resides in a portable polyethylene or poly pipe borer apparatus comprising in combination:
a pipe borer having a rotary cutter;
the borer adapted to be installed and removed from a pipe joining frame for holding in position poly pipes to be joined;
the cutter adapted to be advanced against an open end of a first poly pipe held in the frame; wherein on boring the first poly pipe , the borer is removed and a second poly pipe located in the frame to be joined to the first pipe.
Preferably, the pipe borer is powered by a hydraulic motor.
In the alternative, the pipe borer is powered by an electric motor. In yet another version, the pipe borer is hand powered.
Preferably the pipe borer and rotary cutter are advanced as a unit against the open end of the first poly pipe.
In the alternative, the pipe borer is stationery in the frame and the cutter mounted on an extendible shaft and advanced against the open end of the first poly pipe.
Preferably, the pipe joining frame is a jig comprising a pair of opposed hinged cage sections adapted to encircle and grip poly pipes of substantially same outside diameters to be joined together.
Suitably, the pipe borer is of a size and configuration consistent with the size and configuration of poly pipe being joined wherein the pipe borer is readily removed from and replaced with the second poly pipe in the joining frame.
Suitably, the cutter has one or more adjustable blades wherein the size of the bore can be varied. In another aspect, the invention resides in a method of joining poly pipes of different wall thicknesses using the pipe borer apparatus as hereinbefore described including the steps of:
(a) securing a first poly pipe in the joining frame;
(b) installing the pipe borer in the frame;
(c) boring the first poly pipe to match the wall thickness of a second poly pipe to be joined;
(d) removing the pipe borer from the frame;
(e) securing the second poly pipe against the bored first poly pipe, and
(f) joining by heat welding or other means the first and second poly pipes.
In another aspect, the invention resides in poly pipes joined by use of the poly pipe borer apparatus or by the method as herein before described.
BRIEF DESCRIPTION OF DRAWINGS
In order that the invention be more readily understood and put into practical effect, reference will now be made to the accompanying drawings wherein:
Figure 1 shows a preferred poly pipe borer apparatus according to the invention.
Figure 2 shows the borer on completion of boring a pipe.
Figure 3 shows replacement of the borer with a pipe to be joined. DETAILED DESCRIPTION OF THE INVENTION
In the interests of clarity and to avoid any ambiguity, the numbering of identical parts and components in all views are consistent to allow cross referencing between the drawings.
Referring to Figure 1, there is shown a portable polyethylene or poly pipe borer apparatus 10 according to the invention. The pipe borer 12 powered by hydraulic motor 13 has a rotary cutter 14 and is installed and removed from the pipe joining frame 15 adapted for holding in position poly pipes to be joined. The cutter 14 is advanced against an open end of the poly pipe 16 held in the frame. On completion of boring the first poly pipe 16, the borer 12 can then be removed as shown in Figure 2 and a second poly pipe 18 located in the frame to be joined to the first pipe 16 shown by Figure 3. The pipe borer is powered by a hydraulic motor and the pipe borer 12 and rotary cutter 14 are advanced as a unit against the open end of the first poly pipe 16. In the alternative, the pipe borer can be stationery in the frame and the cutter mounted on an extendible shaft and advanced against the open end of the first poly pipe. The pipe borer 12 is of a size and configuration consistent with the size and configuration of poly pipe being joined wherein the pipe borer 12 is removed from and replaced with the second poly pipe 18 in the joining frame. The cutter 14 has one or more adjustable blades (not shown) wherein the size of the bore can be varied.
Figures 2 and 3 show the method of joining poly pipes of different wall thicknesses using the apparatus of Figure 1. A first poiy pipe is secured in the joining frame 15. The pipe joining frame is a jig comprising a pair of opposed hinged cage sections 15a, 15b adapted to encircle and grip poly pipes of substantially the same outside diameters to be joined together. The pipe borer 12 is installed in the frame and used to bore the first poly pipe 16 to match the wall thickness of the second poly pipe 18. In Figure 2 the frame 15 is opened to remove the pipe borer 12 from the frame. The second poly pipe 18 is secured against the bored first poly pipe 16, which is then joined to the first poly pipe 16 by heat welding as shown in Figure 3. VARIATIONS
It will of course be realised that while the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth.
In the specification the terms "comprising" and "containing" shall" be understood to have a broad meaning similar to the term "including" and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the terms
"comprising" and "containing" such as "comprise", "comprises", "contain" and "contains".

Claims

1. A portable polyethylene or poly pipe borer apparatus comprising in combination:
a pipe borer having a rotary cutter;
the borer adapted to be installed and removed from a pipe joining frame for holding in position poly pipes to be joined;
the cutter adapted to be advanced against an open end of a first poly pipe held in the frame; wherein on boring the first poly pipe , the borer is removed and a second poly pipe located in the frame to be joined to the first pipe.
2. The poly pipe borer apparatus of Claim 1 wherein the pipe borer is powered by a hydraulic motor.
3. The poly pipe borer apparatus of Claim 1 wherein the pipe borer is powered by an electric motor.
4. The poly pipe borer apparatus of Claim 1 wherein the pipe borer is hand powered.
5. The poly pipe borer apparatus of Claim 1 wherein the pipe borer and rotary cutter are advanced as a unit against the open end of the first poly pipe.
6. The poly pipe borer apparatus of Claim 1 wherein the pipe borer is stationery in the frame and the cutter mounted on an extendible shaft and advanced against the open end of the first poly pipe.
7. The poly pipe borer apparatus of any of the above claims wherein the pipe joining frame is a jig comprising a pair of opposed hinged cage sections adapted to encircle and grip poly pipes of substantially same outside diameters to be joined together.
8. The poly pipe borer apparatus of any of the above claims wherein the pipe borer is of a size and configuration consistent with the size and configuration of poly pipe being joined wherein the pipe borer is readily removed from and replaced with the second poly pipe in the joining frame.
9. The poly pipe borer apparatus of any of the above claims wherein the cutter has one or more adjustable blades wherein the size of the bore can be varied.
10. A method of joining poly pipes of different wall thicknesses using the portable pipe borer apparatus as hereinbefore claimed and described including the steps of:
(a) securing a first poly pipe in the joining frame;
(b) installing the pipe borer in the frame;
(c) boring the first poly pipe to match the wall thickness of a second poly pipe to be joined;
(d) removing the pipe borer from the frame;
(e) securing the second poly pipe against the bored first poly pipe, and
(f) joining by heat welding or other means the first and second poly pipes.
11. Poly pipes joined by use of poly pipe borer apparatus of any of the above Claims 1 to 9 or by the method of Claim 10.
PCT/AU2013/000908 2013-08-16 2013-08-16 A portable poly (polyethylene) pipe borer WO2015021492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/AU2013/000908 WO2015021492A1 (en) 2013-08-16 2013-08-16 A portable poly (polyethylene) pipe borer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AU2013/000908 WO2015021492A1 (en) 2013-08-16 2013-08-16 A portable poly (polyethylene) pipe borer

Publications (1)

Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160271702A1 (en) * 2015-03-20 2016-09-22 Flexpipe Systems Inc. Portable pipe lathe and method
US20180369932A1 (en) * 2017-06-27 2018-12-27 Exxonmobil Research And Engineering Company Apparatus and method for enlarging inner diameter of injector for reactor
CN111216368A (en) * 2020-01-13 2020-06-02 倪文锋 Pipeline polyethylene connects former

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GB1277461A (en) * 1968-06-05 1972-06-14 Wadsworth Walton Mount Method and apparatus for joining ends of pipe sections by driven force fit and joints formed thereby
US4289430A (en) * 1979-03-14 1981-09-15 Fairfield Machine Company Method and apparatus for simultaneously boring and turning upset pipe end
US20080008549A1 (en) * 2006-07-06 2008-01-10 Mazak Corporation Method and apparatus for machining work pieces
US20100126968A1 (en) * 2008-11-25 2010-05-27 Justin Vaughn Page Welding apparatus and methods for welding

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GB1277461A (en) * 1968-06-05 1972-06-14 Wadsworth Walton Mount Method and apparatus for joining ends of pipe sections by driven force fit and joints formed thereby
US4289430A (en) * 1979-03-14 1981-09-15 Fairfield Machine Company Method and apparatus for simultaneously boring and turning upset pipe end
US20080008549A1 (en) * 2006-07-06 2008-01-10 Mazak Corporation Method and apparatus for machining work pieces
US20100126968A1 (en) * 2008-11-25 2010-05-27 Justin Vaughn Page Welding apparatus and methods for welding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160271702A1 (en) * 2015-03-20 2016-09-22 Flexpipe Systems Inc. Portable pipe lathe and method
US10226823B2 (en) * 2015-03-20 2019-03-12 Shawcor Ltd. Shawcor Ltée Portable pipe lathe and method
US20180369932A1 (en) * 2017-06-27 2018-12-27 Exxonmobil Research And Engineering Company Apparatus and method for enlarging inner diameter of injector for reactor
US10589359B2 (en) * 2017-06-27 2020-03-17 Exxonmobil Research And Engineering Company Apparatus and method for enlarging inner diameter of injector for reactor
CN111216368A (en) * 2020-01-13 2020-06-02 倪文锋 Pipeline polyethylene connects former

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