Search results
Results from the WOW.Com Content Network
In 1851 Anton Ullrich invented the folding ruler, and in 1887 obtained the patent for the springed hinge of the folding ruler. The "Gebrüder Ullrich" company expanded quickly and later built another factory site in the neighbouring village of Kirrweiler .
The folding carpenters' rulers used in Scandinavia are sometimes equipped with double measurements, metric and imperial on both sides, also functioning as a handy conversion table, accounting for its Scandinavian term: Tommestokk/tumstock (thumb (inch) stick), [4] a term with the same meaning that is also used in Dutch: duimstok. Metric only ...
This page was last edited on 27 January 2009, at 04:08 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
William Henry Smith, FRS (24 June 1825 – 6 October 1891) was an English bookseller and newsagent of the family firm W H Smith, who expanded the firm and introduced the practice of selling books and newspapers at railway stations.
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
William Henry Smith (7 July 1792 – 28 July 1865) was an English entrepreneur whose business included both newsagents and book shops.He was born at Little Thurlow, Suffolk, but ran his business in London, where he died.
The most common and convenient arrangement was to have one of the rulers slide within a groove made along the middle of the other, like an ordinary linear slide rule, as shown in the figure below. Another form had one ruler sliding alongside the other, and a third form had a common two-foot folding ruler with a groove along one side in which a ...
A tape measure or measuring tape is a flexible form of ruler. It consists of a ribbon of cloth, plastic, fiber glass, or metal strip with linear-measurement markings. The design on which most modern spring tape measures are built was invented and patented by a New Haven, Connecticut resident named Alvin J. Fellows on July 14, 1868. [179] 1869 ...