CLASSIQUE. 29,4 cm. GRAPHOPLEX. ELECTRIC LOG-LOG British ( anglaise). CLASSIQUE. 29 cm. GRAPHOPLEX. ELECTRIC LOG-LOG ( variante). Graphoplex Slide rules. Welcome · Calculators · Slide Rules · Aristo · Arithma · Concise · Dietzgen · Faber-Castell · Gilson · Graphoplex · Hope · Keuffel & Esser . Use the various search options to discover and browse the details of the slide rules (many with images and copies of the instructions) I have collected since.

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The number is on the rule itself and on the manual. It has a burgundy plastic case, card of tables, etc, and an instruction leaflet.

Graphoplex Model Number Archive

Extended capacity trig rule, has P Pythagorean scale. The higher end gray end brace duplex rules from Graphoplex were also sold in the USA braphoplex the large drafting supply distributor, Koh-I-Noorbased in New Jersey, and still have the Traphoplex logo.

This complete set of slide rule,cardboard box, manual and card are made by Graphoplex from France. Go to the Slide Rule Books. Note the unusual scale markings B’s on the lower early rule.

Here are the original French instructions included with typical Graphoplex rules: Sphere Research Corporation Sunnyside Rd. The rule itself is graphoplsx of plastic, as well as the cursor which has several long and short hairlines, window with hairline on the back as well. Specialty electronics engineering rule for direct calculation of frequency, capacitive reactance, inductive reactance, etc.


Desk Graphoplex slide rule You are visitor number. Unusual black, red and blue scale markings, fine secondary numbers in blue. Graphoplex Rietz five inch closed frame, plastic slide rule, complete with leather slip case.

DeskMan tools. DeskMan tools Tags: They are visually very striking, something often hard to judge well from a scan, which tends to increase the visual contrast gray becomes blackand makes exact colors hard to reproduce. Tavernier Gravet, in their previous guise as Gravet- Lenoir, were early grapohplex of these Mannheim rules.

F requently A sked Q uestions. General purpose simplex trig rule. It has the following scales: Both cursor and rule are celluloid. Scales are the usual Rietz ones: Coffee Neapolitan flip coffee pot Italy A short form catalog often was present at the top, listing similar rules by model number.

Curser and slide rule are complete and everything is in good condition, some light yellowing to the front. Leather flap case Rietz C.

Only short form catalog additions to instructions sheets have been found so far, so the complete model range and dates of manufacture are not known at this time. DeskMan tools Dutch weather station sputnik. Go to grapnoplex Pocket Slide Rules. Common color schemes were maroon, violet and gray, and cases were typically gtaphoplex two part plastic case maroon or later, grayor a thin brown flap-style leather case.


Note the unusual scale markings B’s on the rule. Black Leather flap case. Calculigraphe calculator made by Henri Chatelaine in Paris. Toys Schuco microracer red Germany The has crisp black scales, with inverse and extension areas in red, and many extra secondary numbers in pale blue, an exceptionally clean and clear rule layout, worth tracking down.

Other calculations can also be made relating to the pipework used. I was able to find two Koh-I-Noor sets here, but only one other original Graphoplex rule. Both names are printed on the back of the rule and the latter is also printed on the leather slip case. The Graphoplex Company Archive.

Graphoplex Slide rules

Graphoplex d Rietz ten grwphoplex, closed frame, plastic slide rule. There is a fixed cursor on the rear glass. Rotating the winder alone rotates the back scales.