Marion I do not know about other manufacturers of slide rules but K&E did first show the 4053, without the dash number, in 1909. It has a CI scale. Clark McCoy...
According to Hopp the K&E 1744, made by D&P in 1895, had a CI scale as well as a BI. Probably the first mass produced one(?) von Jezierski mentions that the...
Hello Andrew Nice story. Regards pearu Terts ... From: Andrew Davie <adavie@...> To: sliderule@yahoogroups.com <sliderule@yahoogroups.com> Date:...
Pearu Terts
pterts@...
Aug 1, 2006 10:06 pm
30763
Just to mention an oddity, I bought a slide rule on eBay with my own initials, NHC, on the case in gold leaf. It was a Dietzgen log log showing a little age...
Marion, Some findings from my "archives". An Everard rule described in 1723 already has a reciprocal scale on the "stock". Later Wollaston and Pearson...
The best back-story on rules in my collection---- I purchased on ebay, a Japanese Army SR with some unusual scales-- related, I think, to surveying. (Haven't...
How many of you are aware that way back in the mists of time the A&B scales were regarded as the primary scales while the C&D scales were viewed as square root...
Nostalgia has struck and I'm looking to replace my first slide rules. The originals disappeared years ago. I think I have identified the model numbers, but if...
The other day, I went to UPS to ship some SRs to a teacher, SRs which had been donated for the SRs for students program. The young man working there helped me...
Quite often, info regarding dating can be ambiguous or conflicting! My D&P source says that the Cox was patented in Oct.1891. BUT, it doesn't say that it was...
Lubrication is counter-productive - so I've read. I've found that most slides can be made to work like a Microglide simply by smoothing the tongue and grooves...
Yeah kid, ya gotta learn something. If you are not willing to step outside of the norm to learn then you will learn like everyone else and be ordinary like...
Les Burrell is beside himself and doesn't expect to recover anytime soon. Why? Because he is an irrational number. Les Burel thanks you for clearing up the...
I worked with someone like that (a computer operator) years ago. The operators who trained her told me that when they showed her how to do something and said,...
If you send me a picture of the characters I'd be delighted to translate for you. It's no trouble at all. Jeff ... related, I ... it.) ... characters in ... ...
Just we date ourselves when we discuss how we learned to use the slide rule in school, we also date ourselves when we use the phrase "dial in". I remember...
There's a really unusual K&E custom rule just listed on ebay (item number 120016218895). It's got all linear scales, but with each having a different...
Heck. I remember when we doubled our data transmission speed ... ... the courier who took the punched cards to the computer 20 km away started making two...
Hi Phil, The rule is almost certainly to do with dairy factory calculations. Dairy farmers usually supply milk to a factory which pasteurizes and packages it...
I remember computing moon rise and moon set for a year on a TRS-80 Model I hooked up to an old railways Baudot TTY (75 baud) as a printer. We put the TTY in...
Hi John, You're right, often ambiguous and conflicting. I found this, which seems to prove that K&E began to produce Cox rules in 1891«K&E began making their...
... Unfortunately, most teachers take the "do we hafta..." attitude. E. g., clock reading is no longer taught in school. Reason? We have digital clocks. Ever...
... ...which reminds me of a recent funny story. A few weeks ago our son, 13, was at a friend's house on a nearby farm and wanted to call home to ask me a...
Hi Chuck, Your high school SR was more than likely a 1447 -- had one myself, although it did not have the grey plastic case. I would bet money that your West ...
Pano: Yes, in this case there is a typical conflict of info. From the D&P chronology: "Oct.6,1891. With US patent 460 940, William Cox reintroduces the double...
Bob, Les, I also have a few Reiss Progress duplexes, all with plastic cursors, of at least two different styles (one is missing the narrow cursor lens on the...
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