Dating faber castell slide rules

The first faber-castell slide rule was produced in 1892 but the history of this useful tool is 250 years older than that at first it was purely for adding and subtracting more complicated calculations later became possible the invention of the pocket calculator in 1969 spelled the end of the slide rule. Id: manufacturer: st: country: model: name: serial: patent: patent: patent: patent: patent: patent: slide pat: copyright: scales: scales: l (cm) basematerial. Make : faber castell, germany: model: 4/98 elektro: notes 1 this rule has the same sale set as the 10 inch equivalent (1/98 elektro) 2 whilst one of the advantages of 20 inch rules ,compared to 10 inch rules, is increased accuracy, this could scarcely have been much of an advantage in this case since the errors in fabrication of the cables would have been larger than the 1:1000 accuracy of. - wooden slide rules - slide rule literature see end of this guide for a starter list of specific slide popular with rules, with photos, - rechenschieber - slide rules - aw faber - aw faber-castell, by peter holland • rod lovett maintains a searchable database of slide rule literature. Re: all about slide rules book (pdf) - rkf - 05-12-2015 09:51 am i'd like to thank egan for the useful link to the pdf, and mark for the hint regarding faber-castell online shop.

Awfaber-castell 367 with decimal indicator (dietzgen 1783) awfaber 369 (dietzgen 1779), made for lawrence and mayo, a london based producer of scientific instruments a descendant of which is still in business in india. Most faber-castell slide rules have on the back 2 embossed stamps that give the year and month of manufacturing mostly the left number gives the year, the right number the month for the year stamp, in most cases the following rules apply: 2-digit numbers: the year of the 20th century eg 34 means 1934. Faber castell addiator and slide rule recently i acquired a faber castell addiator slide rule it is a faber castell 67/87r with the date code for july 1949 stamped into one end of the slide rule - this i think makes it quite an early example of this particular model. Faber-castell, 4/87, 20 inch slide rule, new in case it is rare to find a new, 20 inch slide rule of any kind the 20 inchers, which offer a greater degree of accuracy, were uncommon even in the heyday of slide rules.

A w faber-castell slide rules were made mainly in germany (plus switzerland and austria), and are some of the most elegant and well designed slide rules ever produced very early wood body rules rules have 3-digit numbers like '361. The first faber-castell slide rule was produced in 1892 but the history of this useful tool is 250 years older than that at first it was purely for adding and subtracting more complicated calculations later became possible. - slide rule history, from galileo's sector at the end of the 16th century to present day - links library with links to many websites that contain information about slide rules • the oughtred society also has slide rule books for sale: - the oughtred society slide rule reference manual 102 pages, 109 photos. Faber castell 62/83 duplex slide rule case germany faber-castell tr1 slide rule with electronic calculator on back the box is in great shape and the slide is in amazing condition. Hemmi was the largest manufacturer of slide rules, and is estimated to have sold some 15 million rules over its lifetime these were sold under their own name (sun) as well as redistributed for a large number of other companies, most notably the frederick post co in the us and the hughes owens co (also known as geotec) here in canada.

Additional slide rule material can be accessed using the links in the left bar under slide rule content pages aw faber / faber-castell instruction manuals summary various instruction manuals that came with aw faber / faber-castell slide rules. Suggestions for dating pre-1920 faber-castell slide rules were soon introduced, for example the 360 with some scales faced in celluloid [6], and in 1906 [2] eleven models are known. Faber-castell har stadig et antal regnestokke for mere information kontakt faber-castell på 70 25 10 77 eller mail: [email protected] remaining quantities of slide rulers. Every slide rule ever made by aw faber and aw faber-castell this bumper 7 th edition (16 more information packed pages than the last edition) describes all the slide rules manufactured by aw faber and aw faber-castell.

Dating faber castell slide rules

dating faber castell slide rules I take a look at a couple circular slide rules and discuss some pros and cons there are a few errors: - the gilson binary slide rules are thus named for having a scale of binary fractions.

Faber-castell (as aw faber) made slide rules from around the start of the slide rule mass production era, and their rules are generally regarded as amoungst the highest quality. 12/10 full size system darmstadt mannheim slide rule in the later plastic body style, complete with a 6 digit addiator on the reverse side faber's advanced mannheim rule , widely used in europe, and a real classic. July 6 inch slide rule for a slide and often have nos slide rules for project planning and c attached is that was another major german rocket scientist wernher von jezierski, cif, liggat, inc recently i acquired a vintage instruments assembled by faber castell slide rule of my collection of this link 8 simple rules were invented which renewed. In addition, faber-castell has a number of slide rules still in inventory, available for international purchase through their web store proportion wheels are still used in graphic design various slide rule simulator apps are available for android and ios-based smart phones and tablets.

  • Faber castell rules were manufactured predominantly in germany, and they were clearly the dominant european slide rule maker faber rules are considered by many slide rule enthusiasts as among the best ever made they sold a wide range of models, with many of their early offerings made of swiss pearwood or boxwood with celluloid facings.
  • Aw faber-castell: hel (cme) details of: aw faber-castell - hel (cme) mostly length in cm or ” (inches) of the d scale but excluding any scale extensions but for circular or watch slide rules it is the diameter & for tubular or drum slide rules it is the overall linear scale length for other mechanical aids it is the physical length.

Here are a few instruction manuals for aw faber / faber castell slide rules that i have acquired, most came with slide rules as indicated in addition are a few manuals i have written for my own juggler's and radix series slide rules. 250 years of faber-castell the year 2011 marked an unusual event – the company’s 250th anniversary bian farmhouse dating from the early 17th century it is now in the faber-castell archive berlin paris london which later developed into one of the world’s largest producers of slide rules in the meantime the brand name aw faber. Instruction manuals the site has instruction manuals for a number of slide rules these have been scanned and converted to html some of them relate to standard rules (thornton, faber castell 2/83n) and would be useful whatever rule you have but others are for specialised rules. Faber-castell, 4/87, 20 inch slide rule, new in case it is rare to find a new, 20 inch slide rule of any kind the 20 inchers, which offer a greater degree of accuracy, were uncommon even in the heyday of slide rules this faber/castell 4/87, complete with slide box and instructions (in german), is an exceptionally nice rule.

dating faber castell slide rules I take a look at a couple circular slide rules and discuss some pros and cons there are a few errors: - the gilson binary slide rules are thus named for having a scale of binary fractions. dating faber castell slide rules I take a look at a couple circular slide rules and discuss some pros and cons there are a few errors: - the gilson binary slide rules are thus named for having a scale of binary fractions.
Dating faber castell slide rules
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