The rule has the standard late model mannheim body, similar to the last incarnation of my 40533 series. All slide rule specimens, scans, photos and ephemera are organized into one of 51 galleries. The metal window is inserted over the slide rule to act as a place holder. The app provides the user with an interactive experience, var bingdata. The oughtred society has a meeting in june in mountain view, california, and a meeting in february in las vegas, nevada. Knowlton sells a lot of them, something close to 50,000 so far. Bissaker slide rule 1654 circular slide rule king pocket calculator 66 sclales thacher calculator 30 ft. Our original problem was 410 x 9, and we read an answer of 3. Round the original problem to convenient numbers and solve it in your head. In a separate calculation you find the order of magnitude by combining the powers of 10. As such, we are very familiar with testing our product formulations against a plethora of international standards which include, but are not limited to sae, astm, din, fzg, and iso. Ron manleys slide rule site take the instructions link. The slide rule the book, written by florian cajori, is the standard work on the early history of the slide rule. Slide rules that are round offer the length of a 10 rectangular slide rule in a pocketsized roughly 3.
It is unfortunate that, for some reasons not easy to see, the slide rule is sometimes regarded as a difficult instrument with which to become proficient. The resulting instrument is called the film slide rule, and, as its name implies, it uses movie film as the base for slide rule scales. Displays, an auction, and slide rule talks are the scheduled highlights, plus visiting with other collectors. The app provides the user with an interactive experience, possible solutions, onscreen. National hvacr educators and trainers conference esco institute. To do a calculation with a slide rule you reduce all numbers to scientific notation with 24 digits then use the slide rule to perform the basic operations. Slide rules circular slide rules national museum of. Supercool slide rule hvac for ios free download and. The international meeting of slide rule and other math.
We strongly believe every hvac technician should own a supercool slide rule. To view video tutorials and corresponding pdf aids, click the appropriate link. The slide rule and other instruments which give the same facilities for rapid calculations, are covered by the term mechanical calculation. We use cookies to enhance the security, performance, functionality and for analytical and promotional activities.
The scales are also continuous, so there is no need to make adjustments, such as folded and inverse scales, for results of. Bryan knowlton, inventor and creator of the supercool slide rule, explains how this amazing tool will make your job in air conditioning easier. There is also a version as a word document which is smaller 2040 kb. Here is a virtual slide rule which works in your browser. All this, while still looking slick and fashionable.
Superheat and we have produced many different hvac calculators. Ohms law calculating amperes using the ohms law wheel duration. Listed below are links to pdf notes for most of the tutorial videos produced by supercool slide rule. A cursor is fixed in the center of the window to allow for accurate readings. Any reproduction or modification of these notes for commercial use is prohibited. Each scale is printed on a separate film approximately 220 feet long and the films are wound on takeup reels. Slide rule universe take the learn to use and clean them link. The supercool hvac app provides comprehensive and dynamic solutions to the most complex diagnostics in the air conditioning industry. The scales ad are labeled on the lefthand side of the slide rule. Jan 26, 2017 the supercool hvac app provides comprehensive solutions to the most complex problems in the industry. Its the only slide rule on the market that has conversion for smooth metal to insulation lined metal. Here are two videos with regrettable autofocus hunting explaining the basics of computation with a slide rule.
The supercool hvac app provides comprehensive solutions to the most complex problems in the industry. Illustrated selfguided course on international slide rule. Sold by designstein llc and ships from amazon fulfillment. Knowltons slide rule incorporates the features found in free tools, too. Mannheim slide rule 1850 faber castell 283n nestler 23r mannheim issac newton put 3 scales in parallel in 1675 to compute cubes, and proposed the cursor in 1677, but was ignored.
Including both superheat and subcooling of r410a and r22. The 4100, also known as a stadia rule, is a specialized surveyors slide rule. The slide rule eased the addition of the two logarithmic displacements of the numbers, thus assisting with multiplication and division in calculations. Slide rule contains a plethora of features, some never seen before in this type of application. These video tutorials are designed to only be used by properly trained and certified technicians. Download supercool slide rule hvac and enjoy it on your iphone, ipad, and ipod touch.
On the table are free slide rules given by ac companies. This amazing tool performs every function needed by the hvac professional. Showing the key features of the supercool sliderule. Is there a supercool slide rule version that uses celsius. Supercool hvac troubleshoot duct sizing charging apps on. Please feel free to download, reference, and distribute. Additionally, the slide rule does not tell you where the decimal point is located in the answer. The number of scales on a slide rule vary depending on the number of mathematical functions the slide rule can perform. To view video tutorials and corresponding pdf aids. All literature is ed and property of supercool slide rule.
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