GB834697A - New or improved method for marking out work - Google Patents

New or improved method for marking out work

Info

Publication number
GB834697A
GB834697A GB2263657A GB2263657A GB834697A GB 834697 A GB834697 A GB 834697A GB 2263657 A GB2263657 A GB 2263657A GB 2263657 A GB2263657 A GB 2263657A GB 834697 A GB834697 A GB 834697A
Authority
GB
United Kingdom
Prior art keywords
mirror
distance
out work
modification
source
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
GB2263657A
Inventor
Ronald Frank Bishop
Harry Williams
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.)
Whessoe Ltd
Original Assignee
Whessoe 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 Whessoe Ltd filed Critical Whessoe Ltd
Priority to GB2263657A priority Critical patent/GB834697A/en
Publication of GB834697A publication Critical patent/GB834697A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0016—Technical microscopes, e.g. for inspection or measuring in industrial production processes

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

834,697. Marking-out work. WHESSOE Ltd. July 4, 1958 [July 17, 1957], No. 22636/57. Addition to 806,347. Class 61. An improvement in or modification of the method of marking out a workpiece, of the parent Specification, consists in interposing one or more reflecting surfaces in the path of light from the source to the workpiece. In one arrangement a downwardly facing, horizontally disposed mirror 31 is supported at a distance a above the template 16 and a light source 10 is disposed beneath the mirror at a distance b from it such that a + b = d where d is the distance above the template 16 of the centre of curvature 0 of the plate 24 to be marked. In a modification a second horizontal plane mirror is used. In another modification a curved mirror is arranged so that a virtual image of the source 10 is produced at the centre of curvature of the plate. In other modifications the light source is off-set from the vertical axis of the apparatus.
GB2263657A 1957-07-17 1957-07-17 New or improved method for marking out work Expired GB834697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2263657A GB834697A (en) 1957-07-17 1957-07-17 New or improved method for marking out work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2263657A GB834697A (en) 1957-07-17 1957-07-17 New or improved method for marking out work

Publications (1)

Publication Number Publication Date
GB834697A true GB834697A (en) 1960-05-11

Family

ID=10182641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2263657A Expired GB834697A (en) 1957-07-17 1957-07-17 New or improved method for marking out work

Country Status (1)

Country Link
GB (1) GB834697A (en)

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