GB1372413A - Tube inspection devices - Google Patents

Tube inspection devices

Info

Publication number
GB1372413A
GB1372413A GB3320071A GB3320071A GB1372413A GB 1372413 A GB1372413 A GB 1372413A GB 3320071 A GB3320071 A GB 3320071A GB 3320071 A GB3320071 A GB 3320071A GB 1372413 A GB1372413 A GB 1372413A
Authority
GB
United Kingdom
Prior art keywords
mirror
tube
light source
july
cone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3320071A
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB3320071A priority Critical patent/GB1372413A/en
Publication of GB1372413A publication Critical patent/GB1372413A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

1372413 Optical inspection apparatus DEFENCE SECRETARY OF STATE FOR 11 July 1972 [15 July 1971] 33200/71 Heading G2J A tube inspection device comprises a conical externally reflecting mirror 2 and a light source 5 spaced axially from the base of the cone and located at the side of the cone remote from the apex thereof. As shown, the mirror is mounted on beam 3 supported in the tube by three wheels, 6, 9, one of which, 6 is steerable. Filler 8 is connected to tow-line 14 by which the device is pulled through the tube. The light source 4 may be, as shown, inside a transparent portion 4 of the beam 3, or, alternatively, may be mounted on the beam, or a plurality of sources may be provided. The wall area illuminated L, may be adjustable by making the light source movable with respect to the mirror. The mirror may be viewed at X by eye or using a telescope, or periscope.
GB3320071A 1972-07-11 1972-07-11 Tube inspection devices Expired GB1372413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3320071A GB1372413A (en) 1972-07-11 1972-07-11 Tube inspection devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3320071A GB1372413A (en) 1972-07-11 1972-07-11 Tube inspection devices

Publications (1)

Publication Number Publication Date
GB1372413A true GB1372413A (en) 1974-10-30

Family

ID=10349880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3320071A Expired GB1372413A (en) 1972-07-11 1972-07-11 Tube inspection devices

Country Status (1)

Country Link
GB (1) GB1372413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317632A (en) * 1979-10-19 1982-03-02 Electric Power Research Institute, Inc. Method and means for optical inspection of the interior surface of tubing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317632A (en) * 1979-10-19 1982-03-02 Electric Power Research Institute, Inc. Method and means for optical inspection of the interior surface of tubing

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Legal Events

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