GB613990A - Improvements in or relating to graduated strips and the manufacture thereof - Google Patents

Improvements in or relating to graduated strips and the manufacture thereof

Info

Publication number
GB613990A
GB613990A GB19606/45A GB1960645A GB613990A GB 613990 A GB613990 A GB 613990A GB 19606/45 A GB19606/45 A GB 19606/45A GB 1960645 A GB1960645 A GB 1960645A GB 613990 A GB613990 A GB 613990A
Authority
GB
United Kingdom
Prior art keywords
strip
ink
tin
metal
markings
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
GB19606/45A
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.)
Keuffel and Esser Co
Original Assignee
Keuffel and Esser Co
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 Keuffel and Esser Co filed Critical Keuffel and Esser Co
Publication of GB613990A publication Critical patent/GB613990A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/002—Details
    • G01B3/004—Scales; Graduations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tape Measures (AREA)

Abstract

613,990. Measuring tapes. KEUFFEL & ESSER CO. July 31, 1945, No. 19606. Convention date, June 28, 1944. [Class 106 (ii)] A measuring tape.comprises a strip of metal having on its surface an indicia area and a background area, one of said areas being coloured while the other area is tin electroplated. A strip of cold-rolled spring carbon steel, Figs. 1, 3, which has been cleaned, is given a black oxide coating 22 by passing the strip through a concentrated alkaline solution containing an oxidizing agent. The markings 24 are now printed on the strip using an ink which is resistive to the tin electroplating to which the strip is now subject. A layer 26 of tin is thus obtained. A coat of transparent varnish 28 is then put on the strip. In another embodiment, not shown, the printing ink is removed after electroplating and the visible parts of the black oxide layer form the indicia markings. If desired, the ink can be applied directly to the metal and be of such a nature as to attack and colour the surface thereof so that when the ink is removed, purposely or by wear, the coloured surface of the metal forms the indicia markings.
GB19606/45A 1944-06-28 1945-07-31 Improvements in or relating to graduated strips and the manufacture thereof Expired GB613990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US613990XA 1944-06-28 1944-06-28

Publications (1)

Publication Number Publication Date
GB613990A true GB613990A (en) 1948-12-08

Family

ID=22035531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19606/45A Expired GB613990A (en) 1944-06-28 1945-07-31 Improvements in or relating to graduated strips and the manufacture thereof

Country Status (1)

Country Link
GB (1) GB613990A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938806C (en) * 1953-09-18 1956-02-09 Keller Bayer Mass Ind Tape measure
FR2431114A1 (en) * 1978-07-13 1980-02-08 Stanley Mabo Manufacture of metallic measuring rule - by adhering negative photosensitive film onto surface by heating prior to exposure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938806C (en) * 1953-09-18 1956-02-09 Keller Bayer Mass Ind Tape measure
FR2431114A1 (en) * 1978-07-13 1980-02-08 Stanley Mabo Manufacture of metallic measuring rule - by adhering negative photosensitive film onto surface by heating prior to exposure

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