Dating hemmi slide rule

This is the rule that kept post in the slide rule business in many persons' opinion it was the best general engineering slide rule ever made about one million were sold between 1951 and 1975. Hemmi bamboo slide rule company ltd in japan is the oldest and most well known japanese manufacturing company making slide rules jirou hemmi and company was founded in 1895 and, in 1912, was granted by the japanese patent office patent no 22129 for their laminated bamboo construction method for slide rules. Estimated delivery dates - opens in a new window or tab include seller's handling time, origin post code, destination post code and time of acceptance and will depend on postage service selected and receipt of cleared payment - opens in a new window or tabdelivery times may vary, especially during peak periods. This application simulating a slide rule (slipstick) the slide rule reproduces hemmi no 30 slide rule, which has a, b, c, ci, d, s, l, t scales this device calculate multiplication, division, exponentiation, root extraction and calculation of trigonometric and logarithmic functions using logarithmic scales. Back to manufacturers, there was also a popular imported slide rule from japan made by hemmi, that was a very good slide rule, and was actually the slide rule issued to the air force academy cadets in the ‘70s lawrence made the low-end slide rules, and they later became sterling and spun off a few other makers.

These instructions are for a hemmi slide rule designed for problems in electrical communications as most slide rules have a common set of scales, one can generally get by without a manual, or with a manual from another model rule. It is marked in black at the top right: hemmi japan the post logo (in red) appears at the right side of the slide the back is stamped with the date code td, indicating the rule was manufactured in april 1969. Types of slide rules some of the possible combinations of scales on a slide rule have received standardized names in 1859, amédée mannheim developed a slide rule with the scale layout hemmi made two slide rules of this type, the hemmi 200 and the hemmi 201 the hemmi 201 split the scale into four parts, and, in addition, it was 20.

Id: manufacturer: st: country: model: name: serial: patent: patent: patent: patent: patent: patent: slide pat: copyright: scales: scales: l (cm) basematerial. 2007 dodge durango slt motor v-8 hemmi case has initials on inside and slide rule has crack in clear part on back pink, black, and grey maximum comfort gloves that are engineered for women's han. Make: hemmi, japan: model: 259d: notes 1 this rule could be classed a classic along with rules such as the k&e decilon, the post versalog (effectively a hemmi) or the faber castell 2/83n. Aristo multilog nr 970 march 7, 2007 when i first began collecting slide rules, i made a list of the ones that interested me the most, and then started monitoring ebay and the local antique stores.

Find best value and selection for your vintage geotec hemmi slide rule japan with case search on ebay world's leading marketplace. Similar slide rules have been produced by hemmi (number 257), keuffel and esser , faber , unique , alro (a disk, see picture), aristo (a disk with number 630) and concise (number 600) slide rules with the same function were already made in the nineteenth century. Sun hemmi p35-s five inch, closed frame, plastic slide rule date code wa, january 1972 date code wa, january 1972 the rule is mint with leather slip case, instructions and outer card box.

Hemmi slide rule is selling the following specialty slide rules (plastic) we will be pleased to hear and answer any enquiries in case you are wondering if we can provide slide rules that will meet your needs. Hemmi adjustable slide rule patent no 22129 looks like a hemmi model 1 hemmi skf gears with magnifier, pre wwii model 32, (post 1447m from 1931-33 then post 1441 until wwii) hemmi b35. Sun hemmi slide rules 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. While post usually sold standard hemmi models, around 1951 hemmi created two ten-inch slide rules for post, which sold in the united states as the model 1450 versatrig and model 1460 versalog the versalog was especially popular, selling several hundred thousand copies. Hemmi: japan hemmi made a range of bamboo based slide rules under their own name using the brand sun, as well as manufacturing rules for a number of other companies, most notably frederick post and hughes-owens.

Hemmi discovered they could still sell these rules to the slightly off center and enthusiastic slide rule collectors out there, they seem to have quickly stitched up slide rule covers and duplicated the instruction manual. Sun hemmi # 256 electronics slide rule this is a nice condition rule still in its marked plastic sleeve it has seen little use it has seen little use it has a very unusual setup on the back side and is geared toward electrical calculations. Dating k&e slide rules dating a particular k&e slide rule can be a challenge in most cases dating of a particular slide rule requires consideration of several parameters the following characteristics are used in combination with each other to fully identify a given rule: model numbers. This note about hemmi date codes was assembled from a range of sources but particular mention should be made for information researched and collated by ted hume and paul ross and available in the slide rule archives section on walter shawlee's site the slide rule universe.

Closeup of part of the ch scale for the circa 1960 hemmi 257 chemical slide rule issue 44 gives a glimpse of two classic chemical slide rules found in the oesper collections, one dating from 1814 and the other from 1960. Keuffel & esser slide rules probably my favourite slide rule manufacturer, k&e was the dominant slide rule maker in the us additional dating information has been obtained from a variety of sources, with special thanks to ed chamberlain for his excellent set of k&e dating curves based on k&e serial numbers k&e 4053-3. Hemmi slide rule catalogue raisonne part ii: rules without known model numbers this part of the hemmi catalogue raisonne lists hemmi-made slide rules for which i know no model number these rules were given names (calorie, real estate) instead of model numbers, or were made for other companies (skf, carrier, foxboro) or made for the. 50cm metric rule back slide: [ s, l, t ] back: equivalents and abbreviations from u bureau of standards martha acquired her husband, john prince's collection after his passing in 2005 the manual has instructions for the hemmi models 259d, 260 and 279d.

Ebay determines trending price through a machine-learned model of the product's sale prices within the last 90 days new refers to a brand-new, unused, unopened, undamaged item, and used refers to an item that has been used previously. Net resources index accuracy checking the accuracy of a slide rule aristo aristo archives blundell harling griffenfly java universal slide rule emulator a hemmi-45 emulator a hemmi-153 emulator dating of k & e rules.

Dating hemmi slide rule
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