• Re: Extensive German collection for sale
    Publicado el Lunes, 25 de Septiembre de 2023 a las 14:30 CEST por dirkjschreiber@...
    Hello,I would like to thank everyone who has sent in a bid for the sale of the collection of my father Georg Schreiber. This is to inform all of you that ...

  • Instructions that are not instructions!
    Publicado el Sábado, 23 de Septiembre de 2023 a las 03:10 CEST por gabbardo@... (João Roberto Gabbardo)
    Another correction:  I'm sure that several of you noted that the pictures and texts on the verse of the Plastograf stadia rule ar not instructions but a set of ...

  • Unknown stadia rule that is Plastograf!
    Publicado el Sábado, 23 de Septiembre de 2023 a las 02:37 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi tio all, I think all of you, except me, saw the name of the manufacturer in the photo of the back of the unknown topographic ruler that I put ...

  • New pictures of the 20-D Octololg
    Publicado el Viernes, 22 de Septiembre de 2023 a las 03:18 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi to all, I added two pictures on the albul of the Octolog 11-D showing the clever construction of the rule to allow remove/place again the cursor.Best regards,João Roberto 

  • Re: Help on groups.io
    Publicado el Viernes, 22 de Septiembre de 2023 a las 02:13 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi Dave,very thanks for the answer. Well, have made the unsubscription in the email option, but  sometimes this method doesn't work. Let's ...

  • Re: Help on groups.io
    Publicado el Viernes, 22 de Septiembre de 2023 a las 00:07 CEST por dave.g4ugm@... (Dave Wade)
    Joao,Same way as you un-subscribe from any list. In an e-mail received in you corporate click on the “unsubscribe” link.Dave 

  • Help on groups.io
    Publicado el Jueves, 21 de Septiembre de 2023 a las 20:24 CEST por gabbardo@... (João Roberto Gabbardo)
    Hello,It is a off-topic message: when I make a acces to groups.io to place pictures I was logged in Google with my corporate e-mail, and by chance I registered the ...

  • Assunto: [sliderule] New presentation: Topographic Slide Rules in France: Moinot, Goulier, Graphoplex....
    Publicado el Jueves, 21 de Septiembre de 2023 a las 16:39 CEST por gabbardo@... (João Roberto Gabbardo)
    Hello Jorge,What a interesting coincidence! Two of the 3 albuns created by me in the group are to topographic slide rules!Best regards,João Roberto Gabbardo Enviado do Yahoo Mail no Android ...

  • New presentation: Topographic Slide Rules in France: Moinot, Goulier, Graphoplex....
    Publicado el Jueves, 21 de Septiembre de 2023 a las 11:44 CEST por jfz62@... (jfz62)
    Hello everybody!!!    Announced in the ARC Forum a detailed study by Gonzalo Martin (C.E.O of Photocalcul.com) on the Topographic Slide Rules in France, focused on Moinot, Goulier and Graphoplex models.   Presentation shown ...

  • Re: Assunto: Re: [sliderule] Pictures of the KLPZ USL-121
    Publicado el Jueves, 21 de Septiembre de 2023 a las 00:37 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi Jerry and all,really the left side of the picture became unfocused. I scanned the tabels and updated the pictures. Now you ...

  • New albuns created
    Publicado el Jueves, 21 de Septiembre de 2023 a las 00:37 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi to all, I created 3 new albuns in the https://groups.io/g/sliderulePictures1 with photos of interesting rules of my collection. I hope you like them.Best regards, João Roberto Gabbardo  sliderulePictures1 groups.io GroupThis group ...

  • Re: Assunto: Re: [sliderule] Pictures of the KLPZ USL-121
    Publicado el Miércoles, 20 de Septiembre de 2023 a las 11:02 CEST por jerry_mccarthy_uk@... (Jerry McCarthy)
    And they are (mostly) good pictures. Perhaps the left-hand end of number 8 could be rescanned and posted separately?The "heiroglyphs" at the ...

  • Assunto: Re: [sliderule] Pictures of the KLPZ USL-121
    Publicado el Martes, 19 de Septiembre de 2023 a las 18:49 CEST por gabbardo@... (João Roberto Gabbardo)
    Hi Andreas, Thanks for share the link to the pictures.Best regards,João Roberto GabbardoEnviado do Yahoo Mail no Android

  • Re: Pictures of the KLPZ USL-121
    Publicado el Martes, 19 de Septiembre de 2023 a las 09:32 CEST por jerry_mccarthy_uk@... (Jerry McCarthy)
    Thank you, Andreas!Regards, Jerry McCarthy, U.K. ...

  • Re: Hemmi Byoutou Slide Rule
    Publicado el Martes, 19 de Septiembre de 2023 a las 05:01 CEST por danielsay@... (Daniel Say)
                  Development History of the Slide Rule", by Jihei Miyazaki               is ...

  • Hemmi Byoutou Slide Rule
    Publicado el Martes, 19 de Septiembre de 2023 a las 04:21 CEST por syphersm@... (Mike Syphers)
    I have become interested in a special Hemmi slide rule that I have come to possess.  On the ISRM site it is referred to as the "Byoutou" slide rule.     https://sliderulemuseum.com/Hemmi.htm   (search ...

  • Re: Jangshi manual
    Publicado el Lunes, 18 de Septiembre de 2023 a las 20:18 CEST por rod@... (Rod Lovett)
    Hi Akatsuki,I have incorporated your image into Bill Robinson's Archive.Best wishes,Rod

  • Jiangshi: Scale arrangement: MixedTrigOnSlideAndBody and special HyperTrig arrangement
    Publicado el Lunes, 18 de Septiembre de 2023 a las 18:40 CEST por andreas.poschinger@... (Andreas Poschinger)
    Hi,after playing a little with the Jiangshi, I still struggle with it. Itcan be used in a quite standard way as a LogLog slide rule, with aninteresting exception, that it ...

  • Re: Jiangshi 2nd version body "adjustment screws"
    Publicado el Lunes, 18 de Septiembre de 2023 a las 18:14 CEST por andreas.poschinger@... (Andreas Poschinger)
    PS:Robinson notes that it is unknown, why the width of the two versions aredifferent. I believe to see why: The second version has more space upand down of the respective ...

  • Re: Jiangshi 2nd version body "adjustment screws"
    Publicado el Lunes, 18 de Septiembre de 2023 a las 17:40 CEST por andreas.poschinger@... (Andreas Poschinger)
    Hi,after playing a little with the Jangshi, I still wonder about theprecision though obviously very simple construction.To the other owners of a Jangshi: what about the precision of your copies?It ...