|Name and Model Number||Unique Rolling Mill |
Slide Rule - Types 1 & 2
|Country of Origin||England|
|Date of Manufacture||c. 1950|
|Front Scales||Specialized scales and curves|
|Type of Rule||Slide Rule|
|Construction||Celluloid on wood, with 2 slides and cursor|
|Area of Use||Technical|
|Comment||For rolling mill separating force and torque.
Copyright The Loewy Eng. Co. Ltd. London. Developed by A. Mogiljanskij.
Listed as a prototype in Peter Hopp’s Slide Rules book.
A slightly different version exists (Type 2). See details.
|Donor||Collection of Ron Knapp|
(Click Picture for Details)
|In conjunction with our 'donors' we assign a rarity rating to each item, based on the system devised by Herman van Herwijnen|
|(1929 - 2004), renowned Dutch collector, author, and creator of Herman's Archive, a collection of 5,000 slide rule images on CD.|
|• RR = Rare - 1 of 25 collectors has one; it may take a year to find an example in the marketplace.|
|• RRR = Very Rare - only a few known to collectors; may be several years before it comes up for sale.|
|• RRRR = Extremely Rare - a museum piece; unlikely that an example will come up for sale.|