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Welcome

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. In the past 21 years it has evolved to an international organization with members in 22 countries. It is noted for its highly acclaimed Journal of the Oughtred Society, published twice annually. Continued …

Calendar of Events

June 23, 2012 - Twenty-first Annual OS West Coast Summer meeting. Mountain View, California. Computer History Museum. Oughtred Society Members are invited to attend. The Computer History Museum has been completely redone with more formal displays and exhibits around certain computing themes and that should make our visit this year additionally interesting. $90 before June 9. Click here for Details and Registration.

September 21-23, 2012 IM 2012 - 18th International Meeting of Slide Rule & Historic Calculating Instrument Collectors "SLIDE RULES for the TRADES". The UK Slide Rule Circle is pleased to again host this regular annual event. This will be held at Bletchley Park, home of the wartime codebreakers. Our main meeting will take place in the Library of the historic Victorian Mansion. See further information under Meetings.
Printable Information. 396Kb PDF
Registration Form 27Kb PDF

February 16, 2013 The Oughtred Society will hold the next Winter Meeting and Auction in Tucson, Arizona at the world-renowned Pima Air and Space Museum. Click here for Details and Registration.

News

Publications Inventory Reduction Sale. The Oughtred Society Publications Committee (OSPC) is conducting an inventory reduction sale for April, May, and June of 2012. This is a great opportunity to fill out your collection of Oughtred Society Journals at a 50%-60% savings and OS books up to 40%. Sale ends June 30, 2012 so visit the JOS page for more details.

The Oughtred Society 2012 Scholarships. The Oughtred Society is pleased to announce that it is now accepting applications for its newly established Scholarship program which provides monies to assist with college expenses to mathematically minded students attending colleges or universities worldwide.

Request for Articles for 2012 Journals. Be a contributing author and share your knowledge and interests.

Current Journal of the Oughtred Society

Cover, Table Of Contents, Sample page

Sample Articles from the Journal of the Oughtred Society are available for viewing. The Oughtred Society is pleased to present five articles from recent issues of the Journal - click the titles below to view five articles. In the current JOS issue, Vol. 20, No 2, Fall 2011, there are eighteen such articles.
- A.W.Faber Model 343 System Baur Slide Rule - by Peter Holland of Germany
- A Brief History of the Aristo Studio Slide Rule - by John Mosand of Trondheim, Norway
- Public Display of Your Collection - by Clay Castleberry of Oroville, California
- John R. Dempster, The Remarkable Dempster RotaRule, and the Extraordinary Dempster Family - by W. Richard Davis of Las Vegas, Nevada
- Suggestions for Dating pre-1920 Faber-Castell Slide Rules - by Trevor Catlow of Kent, United Kingdom

Message Board - We now have a way to communicate with each other on a secure Message Board: Use this forum to read or post messages for exchanging information. You must be a current OS member and log-in to post messages. Give it a try!

JOS Plus is the website location where supplemental material appears for articles in the Journal of the Oughtred Society. In the current JOS issue, Vol. 20, No. 2, Fall 2011, there are four such articles. View these supplemental materials by going to JOS Plus.