CA2055968A1 - Parting-off tool for metal tubes, particularly for stainless steel tubes with internal optical waveguides - Google Patents
Parting-off tool for metal tubes, particularly for stainless steel tubes with internal optical waveguidesInfo
- Publication number
- CA2055968A1 CA2055968A1 CA002055968A CA2055968A CA2055968A1 CA 2055968 A1 CA2055968 A1 CA 2055968A1 CA 002055968 A CA002055968 A CA 002055968A CA 2055968 A CA2055968 A CA 2055968A CA 2055968 A1 CA2055968 A1 CA 2055968A1
- Authority
- CA
- Canada
- Prior art keywords
- tool
- separating
- tube
- micrometer
- roller
- 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.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 title description 7
- 239000010935 stainless steel Substances 0.000 title description 7
- 238000002788 crimping Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- BTFMCMVEUCGQDX-UHFFFAOYSA-N 1-[10-[3-[4-(2-hydroxyethyl)-1-piperidinyl]propyl]-2-phenothiazinyl]ethanone Chemical compound C12=CC(C(=O)C)=CC=C2SC2=CC=CC=C2N1CCCN1CCC(CCO)CC1 BTFMCMVEUCGQDX-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229960004265 piperacetazine Drugs 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/06—Hand-operated tube-cutters
- B23D21/08—Hand-operated tube-cutters with cutting wheels
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1204—Hand-held tools
- H02G1/1221—Hand-held tools the cutting element rotating about the wire or cable
- H02G1/1224—Hand-held tools the cutting element rotating about the wire or cable making a transverse cut
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1297—Removing armouring from cables
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Knives (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A separating tool for a metal tube containing optical waveguides which severs the tube without sharp edges, so that the waveguide is not damaged during further handling. The tool is in the form of a micrometer, while a scoring roller is positioned alongside a cutting roller, which impresses a groove-shaped depression into the tube about 1 mm before the point of severance.
A separating tool for a metal tube containing optical waveguides which severs the tube without sharp edges, so that the waveguide is not damaged during further handling. The tool is in the form of a micrometer, while a scoring roller is positioned alongside a cutting roller, which impresses a groove-shaped depression into the tube about 1 mm before the point of severance.
Description
2~59~;8 The present invention relates to a separating tool for metal tubes, in particular stainless steel tubes that csntain optical wave guides, said tool being rolled around the tube, the tube being supported on one side on two guide rollers and on the opposite side being separated by a cutting roller.
In principle, the construction and method of operation of this tool resemble those known cable cutters that are used for electrical cables, e.g., see German Utility Patent DE-GM-1,679,682.
For some years, it has been known that optical wave guidescan be incorporated into overhead lines in such a way that a bundle of optical wave guides is installed loosely within a stainless steel tube, the inside diameter of which is large compared to the outside diameter of the bundle of optical wave guides, and then incorporate this optical wave guide-tube in one of the inside layers of wire within an overhead cable in place of another wire (EP-A2-0 286 804). When this is done, depending on the demands placed upon the cable, the outside diameter of the tube is between 1 and 5 mm, and it has a wall thickness between 0.15 and 0.4 mm.
It is also known that such optical wave guide tubes can be incorporated in high voltage cables, in particular in cables used to carry voltages of 6 to 600 kV (EP-A2-0 203 249), to which end the optical wave guide tube is preferably incorporated into the cable sheath, although it can also be incorpora~ed in a power line or a cable core. In every case, this involves a relatively stable stainless steel tube that surrounds the sensitive optical wave guides in order to protect them.
2~59~3 In order to produce connections in optical wave guides, it is first necessary to run the optical wave guide tube out of the end of the high voltage cable or the overhead line, and then run the optical wave guides themselves out of the tube. The latter also applies for the bare optical wave guide tube in the event that optical wave guides are to be produced here.
If one separates the stainless steel tube in the usual way with a cutting blade or a cutter roller, the ends of the tube will have sharp edges, so that there is a danger that the sensitive optical wave guides that are run out of the tube will be damaged during subsequent handling.
The present invention provides a separating tool that can cut the optical wave guide tube without leaving any sharp edges 15 50 that the optical wave guides that are run out of it are not damaged during subsequent handling.
According to the present invention, the separating tool is configured like a micrometer, and in addition to the cutting roller there is also a crimping roller that is of a diameter between 1 and 5 mm, that compresses the optical wave guide tube so as to form a trough in it, at approximately 1 mm from the point of separation.
In one aspect the invention provides a separating tool for metal tubes, in particular stainless steel tubes that contain optical wave guides, the tool being rolled around the tube, the tube being supported on one side on two guide rollers and on the opposite side being separated by a cutting roller, wherein the tool is configured in the form of a micrometer, and adjacent to the cutting roller there is a crimping roller, said crimping roller compressing the optical wave guide, which is of a diameter between 1 and 5 mm, approximately 1 mm in front of the separating point.
X(~59~
In a preferred aspect:
- a multi-part, block-shaped tool housing is clamped onto the housing of a conventional micrometer in place of the stirrup, to which end a screw-clamp plate is screwed into this housing:
- the tool housing has at the other unattached end a lateral fork-shaped recess for the insertion of the optical wave quide tube;
- the two guide rollers are supported in the fork bridge piece that is located at the end of the housing and perpendicular to the longitudinal axis of the tool;
- the separating roller set is arranged opposite and parallel to the guide rollers, this separating roller set being adjustable relative to the guide rollers by means of the micrometer screw through the pin thereof.
Further preferred aspects include:
- the cutting roller tapers conically at one end (to separate a section of tube), and has at its other end a cylindrical projection that is of a smaller diameter than the diameter of the cutting edge;
- the crimping roller has an edge profile in the shape of a circular arc, and preferably has a projection similar to that referred to above;
~ the maximum diameter o~ the cutting and crimping rollers is in each instance be~ween 3 and 5 mm, the thickness of the 2(~5~6~
rollers and the projections each lying between 0.5 and 1~5 mm.
In still further preferred embodiments: in the centre section of the tool housing, to connect the micrometer screw and the separating roller set, - a cylindrical cap is pressed onto the end of the micrometer pin, this cap having an annular groove;
- the cap is enclosed by a block-shaped bushing, in the bottom of which is arranged the axial bearing for the separating roller set;
- and the micrometer pin cap is connected to the bearing bushing by means of two cylindrical rods, which fit into two diametrically opposed points in the annular groove in the cap, and which are held in corresponding holes in the wall in the bushing.
A description of one embodiment of the present invention will be described in greater detail below on the basis of the drawings appended hereto. These drawings show the following:
Figure l: the separating tool viewed from the front;
Figure 2: a corresponding side view;
Figure 3: the nominal position of the end of the tube with the separating roller set in position.
Figures l and 2 show that a) in place of the stirrup, the multi-part block-shaped tool housing 2 i5 clamped onto the housing of the conventional micrometer 1, to which end the Z(~5968 screw-clamp plate 3 is screwed into this housing; b) the tool housing 2 has at its other end the lateral, fork-shaped recesses 4 for the insertion of the optical wave guide tube R; c) the two guide rollers 6 are supported in the fork bridge piece 5 that is located at the end of the housing and which is perpendicular to the longitudinal axis of the tool;
and d) the separating roller set T is arranged opposite and parallel to the guide rollers 6, this separating roller set T
being adjustable relative to the guide rollers 6 by means of the micrometer screw 1 through the micrometer screw pin 10.
Figure 3 shows that at one end the cutting roller 7 tapers conically to separate the section of tube and at the other end, has a cylindrical projection 8 that is of smaller diameter than the diameter of the cutting edge. The cone 7 has at the cutting edge a slight bevel towards the projection 8 so that the cut surface of the tube remains as clean as possible. The crimping roller 9 has an edge profile that is arc-shaped, preferably in the shape of a circular arc. The crimping roller can also have a projection like the cutting roller. The maximum diameter of the cutting and the crimping rollers is, in each instance, between 3 and 5 mm, and the thickness of the rollers and the projection is, in each instance, between 0.5 and 1.5 mm.
Figures 1 and 2 also show that in the middle section of the tool housing 2, the connection between the micrometer screw 1 and the separating roller set T is so configured that a) the cylindrical cap 11 that incorporates the annular groove 12 is pressed onto the end of the micrometer pin 10; b) the cap is enclosed by the block-shaped bushing 13, in the bottom of which there is the axial bearing 14 of the separating roller set T; and c) the micrometer pin cap 10 is connected to the bearing bushing 13 by means of the two cylindrical rods 15 2(~S9~
that engage in two diametrically opposed points in the annular groove 12 in the cap, and are held in the bushing in the corresponding holes 16 in the wall.
The components of the tool housing 2 are of tool steel with the exception of the bearing bushing 13, which is of ~uZnPb.
The cutting and crimping rollers are of 125 Cr V3 steel and are hardened. The outside dimensions of the separating tool (L x B x H) are 65 x 20 x 20 mm.
Reference number index R stainless steel tube L optical wave guide T separating roller set: cutting roller and crimping roller 1 micrometer tube, commercially available 2 tool housing, block-shaped 3 screw-clamp plate 4 recess in the tool housing, fork-shaped fork bridge piece 6 guide rollers 7 cutting roller 8 cylindrical projection on the cutting roller (spacer) 9 crimping roller micrometer pin 11 micrometer pin cap (cylindrical) 12 annular groove in the micrometer pin cap 13 bushing for the micrometer pin cap, block-shaped 14 axial bearing for the separating roller set two cylindrical rods to connect the cap and the bushing 16 holes in the walls of the bushing for the cylindrical rods.
In principle, the construction and method of operation of this tool resemble those known cable cutters that are used for electrical cables, e.g., see German Utility Patent DE-GM-1,679,682.
For some years, it has been known that optical wave guidescan be incorporated into overhead lines in such a way that a bundle of optical wave guides is installed loosely within a stainless steel tube, the inside diameter of which is large compared to the outside diameter of the bundle of optical wave guides, and then incorporate this optical wave guide-tube in one of the inside layers of wire within an overhead cable in place of another wire (EP-A2-0 286 804). When this is done, depending on the demands placed upon the cable, the outside diameter of the tube is between 1 and 5 mm, and it has a wall thickness between 0.15 and 0.4 mm.
It is also known that such optical wave guide tubes can be incorporated in high voltage cables, in particular in cables used to carry voltages of 6 to 600 kV (EP-A2-0 203 249), to which end the optical wave guide tube is preferably incorporated into the cable sheath, although it can also be incorpora~ed in a power line or a cable core. In every case, this involves a relatively stable stainless steel tube that surrounds the sensitive optical wave guides in order to protect them.
2~59~3 In order to produce connections in optical wave guides, it is first necessary to run the optical wave guide tube out of the end of the high voltage cable or the overhead line, and then run the optical wave guides themselves out of the tube. The latter also applies for the bare optical wave guide tube in the event that optical wave guides are to be produced here.
If one separates the stainless steel tube in the usual way with a cutting blade or a cutter roller, the ends of the tube will have sharp edges, so that there is a danger that the sensitive optical wave guides that are run out of the tube will be damaged during subsequent handling.
The present invention provides a separating tool that can cut the optical wave guide tube without leaving any sharp edges 15 50 that the optical wave guides that are run out of it are not damaged during subsequent handling.
According to the present invention, the separating tool is configured like a micrometer, and in addition to the cutting roller there is also a crimping roller that is of a diameter between 1 and 5 mm, that compresses the optical wave guide tube so as to form a trough in it, at approximately 1 mm from the point of separation.
In one aspect the invention provides a separating tool for metal tubes, in particular stainless steel tubes that contain optical wave guides, the tool being rolled around the tube, the tube being supported on one side on two guide rollers and on the opposite side being separated by a cutting roller, wherein the tool is configured in the form of a micrometer, and adjacent to the cutting roller there is a crimping roller, said crimping roller compressing the optical wave guide, which is of a diameter between 1 and 5 mm, approximately 1 mm in front of the separating point.
X(~59~
In a preferred aspect:
- a multi-part, block-shaped tool housing is clamped onto the housing of a conventional micrometer in place of the stirrup, to which end a screw-clamp plate is screwed into this housing:
- the tool housing has at the other unattached end a lateral fork-shaped recess for the insertion of the optical wave quide tube;
- the two guide rollers are supported in the fork bridge piece that is located at the end of the housing and perpendicular to the longitudinal axis of the tool;
- the separating roller set is arranged opposite and parallel to the guide rollers, this separating roller set being adjustable relative to the guide rollers by means of the micrometer screw through the pin thereof.
Further preferred aspects include:
- the cutting roller tapers conically at one end (to separate a section of tube), and has at its other end a cylindrical projection that is of a smaller diameter than the diameter of the cutting edge;
- the crimping roller has an edge profile in the shape of a circular arc, and preferably has a projection similar to that referred to above;
~ the maximum diameter o~ the cutting and crimping rollers is in each instance be~ween 3 and 5 mm, the thickness of the 2(~5~6~
rollers and the projections each lying between 0.5 and 1~5 mm.
In still further preferred embodiments: in the centre section of the tool housing, to connect the micrometer screw and the separating roller set, - a cylindrical cap is pressed onto the end of the micrometer pin, this cap having an annular groove;
- the cap is enclosed by a block-shaped bushing, in the bottom of which is arranged the axial bearing for the separating roller set;
- and the micrometer pin cap is connected to the bearing bushing by means of two cylindrical rods, which fit into two diametrically opposed points in the annular groove in the cap, and which are held in corresponding holes in the wall in the bushing.
A description of one embodiment of the present invention will be described in greater detail below on the basis of the drawings appended hereto. These drawings show the following:
Figure l: the separating tool viewed from the front;
Figure 2: a corresponding side view;
Figure 3: the nominal position of the end of the tube with the separating roller set in position.
Figures l and 2 show that a) in place of the stirrup, the multi-part block-shaped tool housing 2 i5 clamped onto the housing of the conventional micrometer 1, to which end the Z(~5968 screw-clamp plate 3 is screwed into this housing; b) the tool housing 2 has at its other end the lateral, fork-shaped recesses 4 for the insertion of the optical wave guide tube R; c) the two guide rollers 6 are supported in the fork bridge piece 5 that is located at the end of the housing and which is perpendicular to the longitudinal axis of the tool;
and d) the separating roller set T is arranged opposite and parallel to the guide rollers 6, this separating roller set T
being adjustable relative to the guide rollers 6 by means of the micrometer screw 1 through the micrometer screw pin 10.
Figure 3 shows that at one end the cutting roller 7 tapers conically to separate the section of tube and at the other end, has a cylindrical projection 8 that is of smaller diameter than the diameter of the cutting edge. The cone 7 has at the cutting edge a slight bevel towards the projection 8 so that the cut surface of the tube remains as clean as possible. The crimping roller 9 has an edge profile that is arc-shaped, preferably in the shape of a circular arc. The crimping roller can also have a projection like the cutting roller. The maximum diameter of the cutting and the crimping rollers is, in each instance, between 3 and 5 mm, and the thickness of the rollers and the projection is, in each instance, between 0.5 and 1.5 mm.
Figures 1 and 2 also show that in the middle section of the tool housing 2, the connection between the micrometer screw 1 and the separating roller set T is so configured that a) the cylindrical cap 11 that incorporates the annular groove 12 is pressed onto the end of the micrometer pin 10; b) the cap is enclosed by the block-shaped bushing 13, in the bottom of which there is the axial bearing 14 of the separating roller set T; and c) the micrometer pin cap 10 is connected to the bearing bushing 13 by means of the two cylindrical rods 15 2(~S9~
that engage in two diametrically opposed points in the annular groove 12 in the cap, and are held in the bushing in the corresponding holes 16 in the wall.
The components of the tool housing 2 are of tool steel with the exception of the bearing bushing 13, which is of ~uZnPb.
The cutting and crimping rollers are of 125 Cr V3 steel and are hardened. The outside dimensions of the separating tool (L x B x H) are 65 x 20 x 20 mm.
Reference number index R stainless steel tube L optical wave guide T separating roller set: cutting roller and crimping roller 1 micrometer tube, commercially available 2 tool housing, block-shaped 3 screw-clamp plate 4 recess in the tool housing, fork-shaped fork bridge piece 6 guide rollers 7 cutting roller 8 cylindrical projection on the cutting roller (spacer) 9 crimping roller micrometer pin 11 micrometer pin cap (cylindrical) 12 annular groove in the micrometer pin cap 13 bushing for the micrometer pin cap, block-shaped 14 axial bearing for the separating roller set two cylindrical rods to connect the cap and the bushing 16 holes in the walls of the bushing for the cylindrical rods.
Claims (6)
1. A separating tool for a metal tube that contain an optical wave guide tube, said tool being rolled around the tube, the tube being supported on one side on two guide rollers and on the opposite side being separated by a cutting roller, wherein said tool is configured in the form of a micrometer, and adjacent to the cutting roller there is a crimping roller, said crimping roller compressing the optical wave guide tube which is of a diameter between 1 and 5 mm, approximately 1 mm in front of a separating point.
2. A separating tool as defined in claim 1, wherein: a multi-part, block-shaped tool housing is clamped onto a housing of a conventional micrometer in place of a stirrup, to which end a screw-clamp plate is screwed into said housing; the tool housing has at its other unattached end a lateral fork-shaped recess for the insertion of the optical wave guide tube; the two guide rollers are supported in a fork bridge piece that is located at the end of said housing and perpendicular to the longitudinal axis of said tool; and a separating roller set is arranged opposite and parallel to the guide rollers, said separating roller set being adjustable relative to the guide rollers by means of the micrometer screw through a micrometer pin thereof.
3. A separating tool as defined in claim 2, wherein: the cutting roller tapers conically at one end, and has at its other end a cylindrical projection that is of a smaller diameter than the diameter of the cutting edge; the crimping roller has an edge profile in the shape of a circular arc;
and the maximum diameter of the cutting and crimping rollers is in each instance between 3 and 5 mm, the thickness of the rollers and the projection each lying between 0.5 and 1.5 mm.
and the maximum diameter of the cutting and crimping rollers is in each instance between 3 and 5 mm, the thickness of the rollers and the projection each lying between 0.5 and 1.5 mm.
4. A separating tool as defined in claim 3, wherein said edge profile is a projection similar to that for the cutting roller.
5. A cutting tool as defined in claim 2, 3 or 4, wherein in the centre section of the tool housing, to connect the micrometer screw and the separating roller set, there is provided: a cylindrical cap pressed onto an end of the micrometer pin, said cap having an annular groove; said cap is enclosed by a block-shaped bearing bushing, in the bottom of which is arranged an axial bearing for the separating roller set; and the micrometer pin cap is connected to the bearing bushing by means of two cylindrical rods, which fit into two diametrically opposed points in an annular groove in said cap, and which are held in corresponding holes in a wall in the bearing bushing.
6. A separating tool as defined in any one of claims 1 to 4, wherein the metal tube is a steel tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9015916.0 | 1990-11-22 | ||
| DE9015916U DE9015916U1 (en) | 1990-11-22 | 1990-11-22 | Separating tool for metal tubes, especially for stainless steel tubes with internal optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2055968A1 true CA2055968A1 (en) | 1992-05-23 |
Family
ID=6859587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002055968A Abandoned CA2055968A1 (en) | 1990-11-22 | 1991-11-21 | Parting-off tool for metal tubes, particularly for stainless steel tubes with internal optical waveguides |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0486831B1 (en) |
| AT (1) | ATE103516T1 (en) |
| CA (1) | CA2055968A1 (en) |
| DE (2) | DE9015916U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553181A (en) * | 1993-01-07 | 1996-09-03 | The Whitaker Corporation | Fibre optic connector and method of forming a fibre connection |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325146C2 (en) * | 1993-07-27 | 1997-07-17 | Rheydt Kabelwerk Ag | Method for depositing a hollow wire containing at least one optical fiber |
| DE4332008C2 (en) * | 1993-09-21 | 1997-10-16 | Ero Edelstahl Rohrtechnik Gmbh | Cutting device for thin-walled pipes |
| CN118720258B (en) * | 2024-07-30 | 2025-03-04 | 定襄县瀚雅装饰材料科技有限公司 | Aluminum profile processing machine tool with full-automatic loading and unloading function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1679682U (en) * | 1952-05-30 | 1954-07-15 | David Kotthaus A G | PIPE CUTTER. |
| US3011371A (en) * | 1956-07-09 | 1961-12-05 | Quinn Esther Wilson | Tube cutting and reaming tool |
| GB1038515A (en) * | 1963-07-31 | 1966-08-10 | British Aluminium Co Ltd | Improvements in or relating to multi-purpose tools |
| US3624682A (en) * | 1969-05-08 | 1971-11-30 | Ite Imperial Corp | Tube cutter |
| US3672050A (en) * | 1970-08-05 | 1972-06-27 | Mc Donnell Douglas Corp | Tube cutter |
| BE899032A (en) * | 1984-02-29 | 1984-06-18 | Buchholz Fernand J | IMPROVEMENTS TO TUBE CUTTERS |
-
1990
- 1990-11-22 DE DE9015916U patent/DE9015916U1/en not_active Expired - Lifetime
-
1991
- 1991-10-23 DE DE91118030T patent/DE59101277D1/en not_active Expired - Fee Related
- 1991-10-23 EP EP91118030A patent/EP0486831B1/en not_active Expired - Lifetime
- 1991-10-23 AT AT91118030T patent/ATE103516T1/en not_active IP Right Cessation
- 1991-11-21 CA CA002055968A patent/CA2055968A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553181A (en) * | 1993-01-07 | 1996-09-03 | The Whitaker Corporation | Fibre optic connector and method of forming a fibre connection |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0486831A1 (en) | 1992-05-27 |
| DE9015916U1 (en) | 1991-02-07 |
| ATE103516T1 (en) | 1994-04-15 |
| EP0486831B1 (en) | 1994-03-30 |
| DE59101277D1 (en) | 1994-05-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |