GB2162113A - Optic fibre attenuator tool - Google Patents

Optic fibre attenuator tool Download PDF

Info

Publication number
GB2162113A
GB2162113A GB08419175A GB8419175A GB2162113A GB 2162113 A GB2162113 A GB 2162113A GB 08419175 A GB08419175 A GB 08419175A GB 8419175 A GB8419175 A GB 8419175A GB 2162113 A GB2162113 A GB 2162113A
Authority
GB
United Kingdom
Prior art keywords
attenuator
collet
probe
tool
tip
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.)
Granted
Application number
GB08419175A
Other versions
GB8419175D0 (en
GB2162113B (en
Inventor
Alan Kershaw
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB08419175A priority Critical patent/GB2162113B/en
Publication of GB8419175D0 publication Critical patent/GB8419175D0/en
Priority to SE8503616A priority patent/SE458157B/en
Publication of GB2162113A publication Critical patent/GB2162113A/en
Application granted granted Critical
Publication of GB2162113B publication Critical patent/GB2162113B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/26—Optical coupling means
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Gripping On Spindles (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

A tool 10 for inserting and retrieving an optical fibre attenuator 12 into and out of a collet 16 which holds the attenuator 12. The tool consists of a probe 14 having a narrow tip 13 for inserting through the bore 11 of the attenuator 12 and an abutment surface 15 for engagement with the attenuator 12. The tool 10 carries the attenuator 12 with its tip 13 inserted through the bore 11 thereof, and places it on the surface of the mouth of an open ended collet 16. As the tool 10 is inserted into the collet 16 the surface 15 comes to abut the attenuator 10, and continued insertion causes the attenuator arms 17 to slide down corresponding slits 18, in the collet 16 until jammed therein. The tool is withdrawn. The attenuator 12 can be caused to engage the surface 15, after insertion of the tool 10 from the other end, for removal. The probe 14 may be covered by a threaded cap 20 which may have a recess 24 for holding the collet 16. The tool 10 and the cap 20 may have hand grips 22, 23. <IMAGE>

Description

SPECIFICATION A fibre optic attenuator tool This invention relates to tool for inserting and retrieving a fibre optic attenuator from the interior of a collet.
A known type of attenuator which is flat and relatively small is extremely awkward to manipulate in and out of its associated collet. The present invention is directed to a tool for making such manipulation relatively easy.
According to the present invention there is provided a tool for inserting or retrieving a fibre optic attenuator into and out of an open ended collet comprising a probe for inserting inside a collet, the probe comprising a smaller diameter at the tip portion for inserting into a central bore in the attenuator, and an abutment surface where the tip portion meets the remaining portion of the probe, whereby in use the tip portion is inserted through said bore until the attenuator abuts the abutment surface and the attenuator is either pushed into the collet until the attenuator is jammed in position, or is pushed out of the collet through the same end as insertion.
Embodiments of the present invention will be more clearly understood from the following description with reference to the accompanying drawings wherein, Figure 1 shows a perspective view of the present invention with a fibre optic attenuator and a collet, and, Figure 2 shows a side view of the present invention shown in Figure 1.
Referring to Figure 1, there is shown a tool 10 having a probe 14 and a probe tip 13 having a smaller diameter and an abutment surface 15 at the junction where the two meet.
To insert a fibre optic attenuator 12 into a collet 16, the probe tip 13 which is preferably made of magnetised metal magnetically picks up the fibre optic attenuator 12 on contact. Prior to insertion, when the attenuator is placed on the surface of the mouth of the collet 16 the tip 13 slips into a central bore 11 provided in the attenuator 12 and passes through the bore in the direction shown by the sin gle head arrows. When the tool 10 is inserted into the collet 16 the probe tip 13 continues to pass through the bore 11 until the attenuator 12 abuts the abutment surface 15. On further insertion of the tool 10 the attenuator arms 17 slide down cor responding slits 18 provided in the wall of the col let 16. The probe portion 14 although wider in diameter than the tip 13 is also inserted into the collet.Insertion of the probe 14 is continued until the attenuator 12 can not be pushed into the collet 16 any further. At this point the probe 14 and tip 13 are withdrawn from the collet leaving the attenuator jammed in position inside the collet.
For retrieving the attenuator 12 from the collet 16 the probe tip 13 and probe 14 are inserted into the collet 16 from the opposite end from initial insertion in the direction shown by the double headed arrow. The tip 13 passes through the bore 11 until the attenuator 12 abuts the abutment surface 15. On further insertion of the probe the attenuator 12 is pushed along the slits 18 towards the mouth where entry was first made until the tip 13, attanuator 12 and the abutment surface 15 appear at the mouth of the collet 16. The attenuator is removed and the tool 10 is withdrawn back out of the collet.
Referring now to Figure 2 which shows the tool 10 of Figure 1 with its associated cap 20.
The tool 10 is provided with a handle 21 which is securely fixed to the probe 14. For protecting the probe there is provided a cap 20 which houses the probe when not in use and is preferable screw fitted to the handle 21. Alternatively a snap fit arrangement could be used. Both the cap 20 and handle 21 are preferably made from metal with the screw fit arrangement being integral therewith.
Advantageously the handle 21 and cap 20 are provided with a gripping portion 22 and 23 respectively for aiding the screwing action. The gripping portions can also be made integral with their respective part.
In addition, the cap 20 is preferably provided with a recess 24 at its end for holding the collet 16 so that the user can easily hold the cap 20 and hence position the collet 16 while trying to insert or retrieve the attenuator 12 therefrom.
It will be appreciated by one skilled in the art that modifications can be made to the tool 10 or cap 20 without changing the probe arrangement and thus the function of the tool.
1. A tool for inserting or retrieving a fibre optic attenuator into and out of an open ended collet comprising a probe for inserting inside a collet, the probe comprising a smaller diameter at the tip portion for inserting into a central bore in the attenuator, and an abutment surface where the tip portion meets the remaining portion of the probe, whereby in use the tip portion is inserted through said bore until the attenuator abuts the abutment surface and the attenuator is either pushed into the collet until the attenuator is jammed in position, or is pushed out of the collet through the same end as insertion.
2. A tool as claimed in claim 1 wherein the tip portion of the probe is magnetised for magnetically picking up said attenuator.
3. A tool as claimed in either claim 1 or claim 2 wherein there is also provided a handle for holding the probe.
4. A tool as claimed in any preceding claim wherein there is also provided a cap for protecting the probe when not in use.
5. A tool as claimed in claim 4 wherein the cap is provided with a recess for holding the collet during insertion and retrievement of the attenuator.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A fibre optic attenuator tool This invention relates to tool for inserting and retrieving a fibre optic attenuator from the interior of a collet. A known type of attenuator which is flat and relatively small is extremely awkward to manipulate in and out of its associated collet. The present invention is directed to a tool for making such manipulation relatively easy. According to the present invention there is provided a tool for inserting or retrieving a fibre optic attenuator into and out of an open ended collet comprising a probe for inserting inside a collet, the probe comprising a smaller diameter at the tip portion for inserting into a central bore in the attenuator, and an abutment surface where the tip portion meets the remaining portion of the probe, whereby in use the tip portion is inserted through said bore until the attenuator abuts the abutment surface and the attenuator is either pushed into the collet until the attenuator is jammed in position, or is pushed out of the collet through the same end as insertion. Embodiments of the present invention will be more clearly understood from the following description with reference to the accompanying drawings wherein, Figure 1 shows a perspective view of the present invention with a fibre optic attenuator and a collet, and, Figure 2 shows a side view of the present invention shown in Figure 1. Referring to Figure 1, there is shown a tool 10 having a probe 14 and a probe tip 13 having a smaller diameter and an abutment surface 15 at the junction where the two meet. To insert a fibre optic attenuator 12 into a collet 16, the probe tip 13 which is preferably made of magnetised metal magnetically picks up the fibre optic attenuator 12 on contact. Prior to insertion, when the attenuator is placed on the surface of the mouth of the collet 16 the tip 13 slips into a central bore 11 provided in the attenuator 12 and passes through the bore in the direction shown by the sin gle head arrows. When the tool 10 is inserted into the collet 16 the probe tip 13 continues to pass through the bore 11 until the attenuator 12 abuts the abutment surface 15. On further insertion of the tool 10 the attenuator arms 17 slide down cor responding slits 18 provided in the wall of the col let 16. The probe portion 14 although wider in diameter than the tip 13 is also inserted into the collet.Insertion of the probe 14 is continued until the attenuator 12 can not be pushed into the collet 16 any further. At this point the probe 14 and tip 13 are withdrawn from the collet leaving the attenuator jammed in position inside the collet. For retrieving the attenuator 12 from the collet 16 the probe tip 13 and probe 14 are inserted into the collet 16 from the opposite end from initial insertion in the direction shown by the double headed arrow. The tip 13 passes through the bore 11 until the attenuator 12 abuts the abutment surface 15. On further insertion of the probe the attenuator 12 is pushed along the slits 18 towards the mouth where entry was first made until the tip 13, attanuator 12 and the abutment surface 15 appear at the mouth of the collet 16. The attenuator is removed and the tool 10 is withdrawn back out of the collet. Referring now to Figure 2 which shows the tool 10 of Figure 1 with its associated cap 20. The tool 10 is provided with a handle 21 which is securely fixed to the probe 14. For protecting the probe there is provided a cap 20 which houses the probe when not in use and is preferable screw fitted to the handle 21. Alternatively a snap fit arrangement could be used. Both the cap 20 and handle 21 are preferably made from metal with the screw fit arrangement being integral therewith. Advantageously the handle 21 and cap 20 are provided with a gripping portion 22 and 23 respectively for aiding the screwing action. The gripping portions can also be made integral with their respective part. In addition, the cap 20 is preferably provided with a recess 24 at its end for holding the collet 16 so that the user can easily hold the cap 20 and hence position the collet 16 while trying to insert or retrieve the attenuator 12 therefrom. It will be appreciated by one skilled in the art that modifications can be made to the tool 10 or cap 20 without changing the probe arrangement and thus the function of the tool. CLAIMS
1. A tool for inserting or retrieving a fibre optic attenuator into and out of an open ended collet comprising a probe for inserting inside a collet, the probe comprising a smaller diameter at the tip portion for inserting into a central bore in the attenuator, and an abutment surface where the tip portion meets the remaining portion of the probe, whereby in use the tip portion is inserted through said bore until the attenuator abuts the abutment surface and the attenuator is either pushed into the collet until the attenuator is jammed in position, or is pushed out of the collet through the same end as insertion.
2. A tool as claimed in claim 1 wherein the tip portion of the probe is magnetised for magnetically picking up said attenuator.
3. A tool as claimed in either claim 1 or claim 2 wherein there is also provided a handle for holding the probe.
4. A tool as claimed in any preceding claim wherein there is also provided a cap for protecting the probe when not in use.
5. A tool as claimed in claim 4 wherein the cap is provided with a recess for holding the collet during insertion and retrievement of the attenuator.
6. A tool for inserting or retrieving a fibre optic attenuator substantially as described with reference to the accompanying drawings.
GB08419175A 1984-07-27 1984-07-27 Optic fibre attenuator tool Expired GB2162113B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08419175A GB2162113B (en) 1984-07-27 1984-07-27 Optic fibre attenuator tool
SE8503616A SE458157B (en) 1984-07-27 1985-07-26 TOOLS FOR FIBEROPTIC IMPERATORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08419175A GB2162113B (en) 1984-07-27 1984-07-27 Optic fibre attenuator tool

Publications (3)

Publication Number Publication Date
GB8419175D0 GB8419175D0 (en) 1984-08-30
GB2162113A true GB2162113A (en) 1986-01-29
GB2162113B GB2162113B (en) 1987-05-20

Family

ID=10564546

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08419175A Expired GB2162113B (en) 1984-07-27 1984-07-27 Optic fibre attenuator tool

Country Status (2)

Country Link
GB (1) GB2162113B (en)
SE (1) SE458157B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319733A (en) * 1992-01-02 1994-06-07 Adc Telecommunications, Inc. Variable fiber optical attenuator
US5469613A (en) * 1992-07-10 1995-11-28 Raychem Corporation Tool for connecting a coaxial cable terminus to a connection jack
US5588087A (en) * 1992-01-02 1996-12-24 Adc Telecommunications, Inc. Overlapping fusion attenuator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629505A (en) * 1947-11-10 1949-09-21 Serck Radiators Ltd Means for extracting ferrules from the tubes of heat interchange apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629505A (en) * 1947-11-10 1949-09-21 Serck Radiators Ltd Means for extracting ferrules from the tubes of heat interchange apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319733A (en) * 1992-01-02 1994-06-07 Adc Telecommunications, Inc. Variable fiber optical attenuator
US5588087A (en) * 1992-01-02 1996-12-24 Adc Telecommunications, Inc. Overlapping fusion attenuator
US5469613A (en) * 1992-07-10 1995-11-28 Raychem Corporation Tool for connecting a coaxial cable terminus to a connection jack

Also Published As

Publication number Publication date
SE8503616L (en) 1986-01-28
SE8503616D0 (en) 1985-07-26
SE458157B (en) 1989-02-27
GB8419175D0 (en) 1984-08-30
GB2162113B (en) 1987-05-20

Similar Documents

Publication Publication Date Title
US3604488A (en) Screwdriver attachment
US4155162A (en) Dental anchor magazine
US4308770A (en) Allen wrench handle
EP0216354A3 (en) Different taper stud remover/installer
US5442982A (en) Nesting pocket screwdrivers
US4424728A (en) Allen wrench handle
AU3695193A (en) Concrete anchor
CA2034661A1 (en) Optical fiber cable pulling eye
GB2162113A (en) Optic fibre attenuator tool
US4494305A (en) Contact extraction tool
CA1044446A (en) Lamp inserting and extracting tool
CA2044662A1 (en) Fishing tool for retrieving implements from a hole
EP0184874B1 (en) Assembly including an optical fibre secured in a wall
IE851406L (en) Needle threading device
ES2022592B3 (en) QUICK CONNECTION COUPLING.
US4553455A (en) Nut starter with special blades
US4333231A (en) Wire release tool
US4444228A (en) Wire unwrapping tool
KR870010926A (en) Fastening nut device for mounting interchangeable collet chuck
GB1063026A (en) Insertion and extraction tools for use with multi-contact electrical connectors
JP2612551B2 (en) Wire end treatment cap
PT892472E (en) A PROCESS AND DEVICE FOR CONNECTING A BEAM THAT IS COMPOSED OF FILAMENTS TO A HOLE OR A CAP
US2365880A (en) Mechanical pencil
GB2073638A (en) Screwdrivers
KR890004548Y1 (en) Ear swab

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920727