Precision to contact him directly. Log Log scales are folded 80 inches long with a range from 0. The LL scales are on both sides, along with the C,and D scales which are duplicated on both sides. Over-range extensions on C and D scales. Normally supplied in a molded, rubberized case. Has 28 scale sections. White T coated aluminum construction, black and red scales, dual log scale design in one of Pickett’s most powerful rules. This is a very sophisticated 32 scale rule , made in the trademark aluminum body format by Pickett, one of my Favorite Pickett rules, with a much less cluttered layout than the N4, without sacrificing important functions. Eye-saver yellow ES coated aluminum construction, black and red scales, dual log scale design in Pickett’s most popular power rule set. This is a very sophisticated 34 scale rule , made in the trademark aluminum body format by Pickett.
US2863605A – Metal slide rule – Google Patents
Other Slide Rule dates are currently in development. Assistance in this effort will be appreciated. Please refer to the museum library and individual galleries as this page is being built. Example: St. Louis 12, Missouri.
I spotted this oversize Pickett slide rule while on a road trip through Ohio. I talked to the manager Click on a date/time to view the file as it appeared at that time.
Pickett, Alhambra, Calif. One object of the invention is to provide a slide rule of sheet metal construction having such characteristics that it permits ready, accurate formation and accuracy of operation. Another object is to provide an arrangement in which there is a slider base that is slidable relative to the body of the slide rule and on which the slider is oatingly mounted so as to avoid binding and permit self adjusting of the slider to the guide edges of the body of the rule as the slider base and thereby the slider are manipulated.
Still another object is to provide the body of the rule with connecting end members formed integral therewith and folded over for reinforcement and to provide clearance for the slider, and at the same time hold the scales along opposite sides of the body member in accurate alignment with each other. A further object is to provide modified forms of the body member which eliminate the connecting’members at its ends and provide a single sheet of metal across the back of the slider base having its side edges folded inwardly to form guides for the slider and the slider base, and faces on which the body scales may be printed.
With these and other objects in View, my invention consists in the construction, arrangement and combination of the various parts of my slide rule, whereby the objects above contemplated are attained, as hereinafter more fully set forth, pointed out in my claims and illustrated in detail on the accompanying drawings wherein:. On the accompanying drawings I have used the reference character B to indicate in general the body of my slide rule, S the slider thereof and C the cursor thereof.
The body B is provided with upper and lower body faces 12 and 14 on which the body scales are printed. The body B is formed of sheet metal in the initial shape shown in Fig.
Suggestions for Dating pre-1920 Faber-Castell Slide Rules
McFarland entry. David passed on April 20, at the age of Even while in a wheel chair he attended all the Oughtred Society meetings. Collector and donor of slide rules to ISRM galleries. Watch my progress. Created a separate page for the Brand Index.
In most cases dating of a particular slide rule requires consideration of several parameters. Model numbers, serial numbers, catalog descriptions, cursor types.
The story of Bill Hewlett’s iconic computer in a pocket. I don’t in fact have either one, so it could be that the plastic is marvelous in the flesh. I simply refuse to believe that I wouldn’t prefer mahogany or bamboo. Or even…. Now these guys were in fact heroes. No need for tattoos or Balthus-inspired math lessons. Not my favorite, in fact, but it’s at the top of many collectors’ lists.
The Nestler 23R. An oddly basic Rietz rule, given that it was favored by both Einstein and Wernher von Braun. They succeeded. Sphere’s Slide Rule Universe is a repository for slide rule information, pictures, history and links to sellers, other slide rule sites and experts, and an on-line slide rule store.
British Thornton Slide Rule
I bought my first scientific calculator in a Decimo E, ‘Electronic Slide Rule’ and my ‘analogue calculator’ rapidly gathered dust. It was only about two years ago that I renewed a latent interest in them and started to explore the many superb resources available, which prompted me to purchase a selection. I wouldn’t describe myself as a collector, I bought one example each of styles and of makers that particularly interested me and my ‘collection’ has stopped at eleven.
Making examples from published templates is also fun. Some of these are illustrated below and, given the wealth of authoritative material available on the makers and models, I just add some comments on why they appeal to me and point out some major features.
Pickett No. C Circular Slide Rule Set. ” aluminum circular has trig and log-log scales. Eye-saver yellow, with original box, instruction booklet and.
Eye-Saver Yellow Catalog. Pickett was an American manufacturer of slide rules characterized by all metal construction. Eckel started out making all-metal slide rules in using magnesium and later evolved to aluminum as aluminum alloys became more machinable. Pickett slide rules were chosen to be used by the Apollo astronauts on their mission to the moon, as they were lighter than their wood core counter parts. Picket used a photo print on their slide rules, rather trhan being engine divided.
Picketts are remembered by many later-day alumni for their characteristic yellow ‘eye saver’ color. Pickett also produced all-plastic low-end slide rules in the waning days of the their life. When the company folded with the rest of the industry, the slide rules were going to be sold as scrap metal to Mexico, but were rescued by Dick Schwartzer and later sold to collectors over the last 25 years.
There are thousands of the plastic Pickett models hiding in warehouses waiting to be slowly feed into the collector market. Trig Projection Rule.
Pre-Electronic Devices | Abacus and Slide Rules
The slide rule , also known colloquially in the United States as a slipstick ,   is a mechanical analog computer. The slide rule is used primarily for multiplication and division , and also for functions such as exponents , roots , logarithms , and trigonometry , but typically not for addition or subtraction. Though similar in name and appearance to a standard ruler, the slide rule is not meant to be used for measuring length or drawing straight lines.
Slide rules exist in a diverse range of styles and generally appear in a linear or circular form with a standardized set of graduated markings scales essential to performing mathematical computations. Slide rules manufactured for specialized fields such as aviation or finance typically feature additional scales that aid in calculations particular to those fields.
Pickett Slide Rules are available with all of the special scales shown in this manual. COPYRIGHT · PICKETT, INC. Form M PART 1. SLIDE RULE.
Low cost two color simplex rule. Plastic body rule with unusual blue tinted slide and two color scales. Basic student rule with trig scales, the T, ST and S scales have complimentary angles marked in red, and the scales are all self-documenting on the right hand side. Reversible slide has 3 log log scales. Unbreakable plastic cursor. About June, The last Post Versalog II is made. Plastic body duplex rule with trademark green accent stripes on fundamental scales, and multi-line cursor.
Rule face is self-documenting, with scale functions listed, as well as scale letters. Rule is self documenting on right hand side for all scales. After seeing so many slide rules it may appear confusing to see so many scales close together one one slide rule.
A man must have a hobby….
I spotted this oversize Pickett slide rule while on a road trip through Ohio. I talked to the manager at the Max and Erma’s restaurant in Maumee Ohio about buying it, but he wasn’t interested in selling. These large slide rules were used for demonstration purposes and as teaching aids. They were typically provided free if a school made a bulk purchase of the regular size slide rule usually around
This was my Dad, Jim Wolfson’s, slide rule at NYU. of A,B,C,D scale labels at the left edge, and the repositioning of the red K&E, patent date, and made-in text.
This version does both days and weeks from now or any date to any date. Very handy for determining when those ‘8 week delivery’ items will really arrive. Instructions are printed on the rear. These will be a stock item for us replaces discontinued 7 and 8 inch previous models , so we can supply any quantity with some delay. Yes, Made in USA. These are being discontinued in favor of the blue style above, no more when these are gone. Datalizer 7 Inch Date Finder Like this rule?
The Smart Way to Shop, Easy Way to Sell!
By Maribeth Keane — November 12th, In this interview Mike Konshak talks about collecting vintage slide rules , and their history and uses. I talked to some other collectors about if you had to have a slide rule, which one would it be? And I bought those. It kept expanding to the point where I ended up with over a thousand slide rules.
William Oughtred, as well as others, developed the slide rule in the 17th century based on the emerging work on logarithms by John Napier. Slide rules became.
Greg’s Slide Rules. What’s new. What’s New. Slide Rule Collection. Books Manuals Downloads. Collectors Traders Other. About this site Contact me. There are a number of sources of manuals for slide rules, they were usually supplied with slide rules when purchased although over the years they have become detached from the slide rule and are now lost.
A number of these manuals are available for download. Here are some of the slide rule manuals I have collected:. Editor: Ross R. This may have been the catalogue number for the instruction manual as the last page refers to No. The manual has instructions for a range of basic functions and is quite easy to read and follow. This particular manual came with a Concise 28N slide rule.
Linear slide rules are what you may think of as “normal” slide rules – straight scales with a sliding section and usually a cursor. But they still come in all sorts of weird and wonderful variations, from tiny to big, and single to multiple sliders. Scale lengths in my collection range from 36 to mm 1. Accuracy ranges from 2.
Pickett All-Metal Slide Rules. Pickett company founded, in Chicago, by Roswell Colvert Pickett, a printer. Art Eckel joins Ross.
The slide rule , also known as a slipstick ,  is a mechanical analog computer. The slide rule is used primarily for multiplication and division , and also for “scientific” functions such as roots , logarithms and trigonometry , but does not generally perform addition or subtraction. There are many different styles of slide rules. Generally, they are either have a linear form or that of a circle. They have a standardised set of markings called scales. These scales are used for mathematical computations.
Some slide rules have been made for specialised fields of application, for example aviation or finance. Such slide rules have special scales which are useful in the particular field of application, in addition to the common ones. William Oughtred and others developed the slide rule in the s.