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Watchmaker

Home › Forums › General Questions › Watchmaker

  • This topic has 6 replies, 4 voices, and was last updated 6 May 2015 at 07:40 by Michael Gilligan.
Viewing 7 posts - 1 through 7 (of 7 total)
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  • 5 May 2015 at 20:52 #23860
    Speedy Builder5
    Participant
      @speedybuilder5

      Scales

      5 May 2015 at 20:52 #188793
      Speedy Builder5
      Participant
        @speedybuilder5

        Watchmaker's tools :- caliper.jpgWhat are these callipers used to measure, and what do they measure in, inches, MM, angles? I see on the internet that they could be in "lignes", and that it may be in 72nds of 1/2 inch with an accuracy of 1/32 (Didn't understand that). The scale is marked 0 – 72 and is marked 6,12,18 etc up to 72. At 72, the caliber jaws are 13.2mm wide.
        Answer on a postcard please. Oh, there may be more questions coming up as I have 'inherited' the back end of a watchmaker's workshop with pinions, springs, tools etc etc.
        Bob H

        5 May 2015 at 22:21 #188810
        Michael Gilligan
        Participant
          @michaelgilligan61133

          Bob,

          There's a nice picture and description, here.

          MichaelG.

          .

          Edit: … and Wikipedia has a reasonable entry about the Ligne.

          Edited By Michael Gilligan on 05/05/2015 22:25:39

          Edited By Michael Gilligan on 05/05/2015 22:26:22

          5 May 2015 at 22:40 #188811
          RJW
          Participant
            @rjw

            Bob, it's called a 'Douzieme gauge',

            Another link for you to browse!

            **LINK**

            5 May 2015 at 23:54 #188815
            Bazyle
            Participant
              @bazyle

              You will notice in RJW's link the reference to a 'point'. A measure you are already familiar with in the size of the type you are now reading.

              6 May 2015 at 07:36 #188825
              Michael Gilligan
              Participant
                @michaelgilligan61133
                Posted by Michael Gilligan on 05/05/2015 22:21:10:

                Bob,

                There's a nice picture and description, here.

                MichaelG.

                .

                Correction: That should probably read "a nice picture and a somewhat dubious description"

                The information in RJW's link is much better.

                MichaelG.

                6 May 2015 at 07:40 #188827
                Michael Gilligan
                Participant
                  @michaelgilligan61133
                  Posted by Bazyle on 05/05/2015 23:54:12:

                  You will notice in RJW's link the reference to a 'point'. A measure you are already familiar with in the size of the type you are now reading.

                  .

                  Interesting linguistically, but rather confusing in terms of the size

                  … see here for variations on the theme

                  MichaelG.

                  Edited By Michael Gilligan on 06/05/2015 07:45:10

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