GB354154A - - Google Patents

Info

Publication number
GB354154A
GB354154A GB31731A GB31731A GB354154A GB 354154 A GB354154 A GB 354154A GB 31731 A GB31731 A GB 31731A GB 31731 A GB31731 A GB 31731A GB 354154 A GB354154 A GB 354154A
Authority
GB
United Kingdom
Prior art keywords
scale
magnifier
telescope
edge
zeiss
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
GB31731A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB354154A publication Critical patent/GB354154A/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
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports

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

354,154. Optical inspection-apparatus. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Jan. 5, 1931, No. 317. Convention date, Jan. 7, 1930. [Class 97 (i).] A device for examining the setting of the piston valves of steam engines comprises a telescope and a magnifier whose distance from the telescope is variable, the magnifier having a scale in its front focal plane. The magnifier 12 and scale plate 13 are mounted in a tube 10 which can slide within a tube 11 carrying the telescope objective 18 and ocular 19. The piston valve 1 is shown as working within a liner 3 through which passes the port 5 into which the inspection device is inserted. The scale is arranged with its zero against the lower edge 9 in the liner so that the distance between this edge and the edge 8 of the lowermost piston ring of the valve 1 can be directly observed. The scale is illuminated by a lamp 17.
GB31731A 1930-01-07 1931-01-05 Expired GB354154A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE354154X 1930-01-07

Publications (1)

Publication Number Publication Date
GB354154A true GB354154A (en) 1931-08-06

Family

ID=6286711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31731A Expired GB354154A (en) 1930-01-07 1931-01-05

Country Status (1)

Country Link
GB (1) GB354154A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447179A (en) * 1990-05-18 1995-09-05 Itt Corporation Non-corrosive double-walled steel tube characterized in that the steel has a face-centered cubic grain structure
US5845837A (en) * 1995-12-28 1998-12-08 Itt Automotive, Inc. Polymer-based material for carbon deposition during brazing operations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447179A (en) * 1990-05-18 1995-09-05 Itt Corporation Non-corrosive double-walled steel tube characterized in that the steel has a face-centered cubic grain structure
US5845837A (en) * 1995-12-28 1998-12-08 Itt Automotive, Inc. Polymer-based material for carbon deposition during brazing operations

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