Oughtred Society  
HOME

Slide Rule Info
Beginners Guide
Image
   Galleries:
Archive of Collections
Classic SRs
Rarities Gallery
Slide Rules of the
   Major Makers

OS Slide Rule Ref Manual
Links Library
Long Scale SRs
Hyperbolic SRs
History of SRs
SR Resources
Patent Data
In Memoriam
Slide Rule Fun

About the OS
Membership
Journal (JOS)
Journal Search
Publications
Meetings
MessageBoard
JOS Plus
Bulletin
Newsletters
OS Awards
OS Directors


OS Facebook

Welcome

      Click on images for more information

The Oughtred Society was founded in 1991 by a group of slide rule collectors and is dedicated to the preservation and history of slide rules and other calculating instruments. Over the past three decades it has evolved to an international organization with members in 20 countries. It is noted for its highly acclaimed Journal of the Oughtred Society, published twice annually. The Society is a non-profit educational organization. Society goals include the dissemination and sharing of information and encouragement for collectors. We are affiliated with organizations in the United Kingdom, Germany, The Netherlands and Italy. Our activities are carried out by members who volunteer to do various tasks and projects. Membership is open to anyone. Click "Membership" in the left navigation menu for more information about member activities and benefits.

News/Features


  • Oughtred Society 2021 Annual Meeting May 15

    Our Oughtred Society’s Annual Meeting, being held virtually via Zoom on 15 May 2021 from 9AM to 1PM PDT, is now less than three weeks away. All OS members are invited; the meeting will feature several presentations, an auction, and of course our Annual Meeting. Openings are still available for presentations; please bring your topic of interest to present for 20-30 minutes and share your expertise on the subject with the membership and be sure to let Jim or Bob know the topics of your presentation.

    In summary, meeting logistics are:

    Date: Saturday, 15 May 2021
    Start Time: 0900 PDT, 1200 EDT, 1700 BST, 1800 CEST/1700 CET
    Duration: 4 hours
    Location: Your home office or study via ZOOM

    The meeting format will be essentially the same as the physical meetings in the past, with the necessary adjustments to suit the virtual ‘venue’. The agenda that we expect to follow will be:

  • Welcome (10 min)
  • Introductions (optional) (20 min)
  • Presentations 1 & 2 (60 min)
  • Break (15 min)
  • Presentations 3 & 4 (60 min)
  • Annual Meeting (30 min)
  • Auction (45 min)
  • If you would like to present a topic at the meeting, please send an e-mail to either Bob De Cesaris or Jim Bready. There will be no proceedings published, so no paper is required. If you do supply a paper to accompany your presentation, it will be published as an article in the Journal of the Oughtred Society.

    The virtual meeting format complicates the auction, but only a little. If you have something you would like to put in the auction, either mail it to Jim Bready, who will take pictures and write a description, or take the pictures and write the description yourself, and email them to Jim. When the auction is over, if the seller is holding the item, the buyer and seller will be put in contact to work out the payment and shipping. If Jim has the item, the buyer will be given the seller’s PayPal ID so that payment can be sent, and Jim will mail the item with the Oughtred Society covering the cost of postage to the buyer. Pictures and descriptions of the items in the auction will be posted on Dropbox one week before the meeting. There will be a link to the Dropbox folder on the Oughtred Society website.

    Current list of items to be auctioned, currently all from the Wayne Wagner Collection are as follows:

    Auction items list so far
     1  K&E Catalog, 37th edition, 1927
     2  Manual of Instructions for Burroughs Calculator, 226 lessons!
     3  Original Odhner pinwheel calculator
     4  K&E 1962 full-line catalog in 3-ring binder
     5  Otis King Model K, SN W7376, perfect cond., in leather snap case and original box, with instructions
     6  Post clip-on cursor magnifier in leather case, fits Versalog perfectly
     7  K&E single-sided clip-on cursor magnifier, Part # 68 2224, fits LL Duplex Trig & Decitrig, and JetLog. In box.
     8  K&E 68 1251 Jet Log slide rule (all-plastic version of LL Duplex Decitrig)
     9  Stephenson-Pfahl Hardenability Slide Rule, 11 slides!
     10  Pickett 1000, felt slipcase, no corrosion to the magnesium at all, in original box
     11  Pickett 1000, felt slipcase, no corrosion to the magnesium at all.
     12 Pickett C19T Collins Radio Microwave Transmission slide rule
     13  Gilson Binary, new in Dietzgen box, with case and instructions
     14  FXR Smith Chart slide rule
     15  Koh-I-Noor 10010 Techno-Log slide rule, in box with case, no instructions
     16  Russian "manhole cover" aluminum 11" diameter circular slide rule, for artillery
     17  Pickett N3-ES, new in box, with case and instructions
     18  K&E 4181-1, 5" all-plastic version of the LL Duplex Decitrig, "Property of Wayne Wagner" on one edge
     19  Guedon stamped and folded aluminum 5" slide rule in amazingly nice condition
     20  K&E 68 1100 10" DeciLon slide rule, very clean
     21  US Navy "Animated Transparency" overhead projector slide rule, built like an aircraft carrier, and only slightly smaller
     22  Charles Bruning & Co. general catalog, 12th edition, 1936
     23  Book: Computing Before Computers, by Aspray, Bromley, Campbell-Kelly, etc. 1990
     24  Fuller Calculator, Type 1, SN 9814, 1949, Bakelite. Exc. Cond., with instructions
     25  Thacher Slide Rule, Model 4012, SN 3381, Very Good Condition. Box appears to be Refinished

  • Virtual IM2021” The 27th International Meeting of Collectors and Researchers of Slide Rules and other Historic Computing Instruments, or IM2021 for short, will be held on September 11th and 12th, 2021 as a "Zoom" online conference. For more information visit the IM2021 web site:

    http://www.im2021.org


  • The new edition of the Journal of the Oughtred Society is out! (See below for sample page and TOC images!)

    JOS 2020-29-2 Cover

  • Virtual IM2020

    ” held Sat Sept 12 and Sun Sept 13, 2020 was a HUGE success!! We had an outstanding ‘Virtual IM2020” with 10 presenters and nearly 100 attendees!
    Thank you all for attending. The meeting would not have been half as much fun without you! We have received many requests for the PowerPoint or PDF files of both the presentations and especially the introduction slides. You can now view or download all of those files from our IM2020 web page

     



  • Conrad Schure
    April 2, 1930 - July 4, 2020 

    Conrad was instrumental in organizing all of our early OS East Coast Meetings and while in good health, never missed a chance to visit our West Coast Meetings and attend our International Meetings. (see OS Memoriam page for additional comments) Conrad Schure passed away while in hospice care in Connecticut. Fortunately, in spite of the Covid situation, Conrad did have his family present, according to his son. -- Robert G. De Cesaris


  • The Oughtred Society 2019 Annual Meeting was held in Las Vegas at the Atomic Testing Museum on April 20, 2019. Once again there were dozens of unique and interesting slide rules for sale at the Oughtred Society annual auction and several interesting presentations. Here is a brief report on the 2019 OS annual meeting.

  • International Meeting of Collectors of Historical Calculating Instruments (IM2019) - September 20-22, 2019

    The 25th International Meeting of Collectors of Historical Calculating Instruments (IM2019) was held September 20th to 22nd, 2019 at the Badhotel in Scheveningen -- the seaside resort of The Hague, which is the government residence of the Netherlands (full announcement). (pdf) 2018 meeting report.


  • Calling all authors! The Oughtred Society is preparing the 2021 Journal issues, and is looking for some good articles! Contact Journal editor Jim Bready with your proposal, and see The Journal of the Oughtred Society web page for more information and to download the JOS Guidelines for Authors.

  • June 16-17, 2018: An SR-71 symposium was held in McMinnville, Oregon at the Evergreen Aviation and Space Museum. The SR-71 was the last aircraft designed using slide rules.

  • Free On-Line BOOK: The Oughtred Society is proud to announce the publication of LONG-SCALE SLIDE RULES in LIFE-SIZE IMAGES by Otto E. van Poelje, dedicated to the memory of our Oughtred Society fellow collector & long-scale slide rule connoisseur Edwin Chamberlain (18-10-2017)

  • The Oughtred Society is proud to publish The Inventor of the CURTA Calculator an autobiography. This book is the story of the remarkable life of the inventor of this ingenious device, how he started in his father's mechanical office machine company in Vienna, eventually running the company himself, designing the Curta and becoming embroiled in WWII as a prisoner in a Nazi concentration camp and finally the difficulties of setting up full production after the war in Liechtenstein. Additional material written by the late Tom Wyman and Dr. Robert Otnes is included.

  • Archive of Collections. New Collections added to this Archive. The first collection in this Archive was that of the late Tom Wyman. We now have five collections featured; items from the collections of Paul Tarantolo, Louis Gotlib, Richard Davis, Cliff Frohlich and Thomas Wyman. All the collections continue to grow under the direction and efforts of Clark McCoy, Rod Lovett, Ted Hume and Richard Davis. We invite you to view this new Archive of Collections and consider having us post your collection to the OS website for posterity.

  • Pencil Slide Rules: A new publication introduced earlier in the year by the Oughtred Society: Pencil Slide Rules and their Successors, The Calculator Pen and Pentop Computers is a collection of articles that admirably covers this subject! This monograph is authored and edited by one of our Oughtred Society founders, Rodger Shepherd. This publication is now available for sale on our website.

  • JOS DVD is available for sale, containing 26 years of the Journal of the Oughtred Society in PDF format. OS members and non-members(individuals and institutions) may purchase the DVD by going to the Journal page and paying for the disk via Paypal.

  • A Search Facility for the Journal of The Oughtred Society awaits your use.
    (See Journal Search in main menu at left.) This new Search Facility displays high resolution PDFs of Journal articles. You may search by several methods -- author, title, keyword, or for any word that appears in any article, or for all articles in a given year, etc.The search facility was created by Rod Lovett.

  • Request for Articles for the 2021 and 2022 Journals. Be a contributing author and share your knowledge and interests. For ideas and inspiration, read "Yes, You Can Write for the Journal of the Oughtred Society" (82KB pdf).
  • Current Journal of the Oughtred Society

    JOS 2020-29-2 Cover JOS 2020-29-2 TOC JOS 2020-29-2 Sample Page
    Cover                        Table Of Contents           Sample Page

  • Sample Articles from the Journal of the Oughtred Society. The Oughtred Society is pleased to present seven articles from past issues of the Journal. See NEWS ARCHIVES.
  • JOS Plus is the website location where supplemental material appears for articles in the Journal of the Oughtred Society. View these supplemental materials by going to JOS Plus.
  • NEWS ARCHIVES - Past announcements and news.

General Information

Organizations

Sellers

Collectors

Museums


Publications of the Oughtred Society

Order Details for
All Publications
HERE


JOS DVD
JOS DVD
26 years on one disk

LONG-SCALE SLIDE RULES in LIFE-SIZE IMAGES
LONG-SCALE SLIDE
RULES in LIFE-SIZE
IMAGES

Specialized Slide Rules Cover
Specialized Slide Rules
for Electronic Engineers

The Inventor of the CURTA Calculator
The Inventor of the
CURTA Calculator

Pencil Slide Rule Book
Pencil Slide Rules

SchuitemaBook
The Slide Rule Technical Cultural Heritage
by IJzebrand Schuitema


K&E Slide Rule History
K&E Slide Rule History

Slide Rule Reference Manual
Slide Rule Reference Manual
2nd Edition

Pocketbook of Gauge Marks
Pocketbook of Gauge Marks
2nd Edition


arrow

Click here to contact us
About this site.
http://oughtred.org/index.shtml
last modified May 02, 2021