Patentable Invention
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In our eReader you can find the full English version of the book. Read Patentable Invention Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Patentable Invention
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The common watch key had a single pipe (for fitting and turning the square winding stem of the watch) com- bined with a holder for holding and turning the pipe.
As the winding stems of different watches vary in size, six different keys of different sizes were required by a watch repairer. Subsequently, six pipes of the pro- gressive different sizes were combined radially with a single holder so as to project from it like the spokes project from the hub of a wheel. The six separate keys when lay...ing side by side on a work bench, or if tied together in a bundle, constituted an aggregation; the six pipes of different .sizes connected with one holder which is common to all constitute a mechanical combi- nation. The compound tool was a new and exceedingly useful one, as it saved the time required to take up and put down several of the single keys in order to find one that would fit the watch to be wound. The new tool when first produced was not a mere duplication or multi- plication of the old single tool, because in that case it would have had six holders as well as six pipes; nor was it a mere multiplication or duplication of the pipes of any one of the single keys, because in that case its pipes would have all been of the same size.
What to read after Patentable Invention?
You can find similar books in the "Read Also" column, or choose other free books by Renwick, Edward S. (Edward Sabine), 1823-1912 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The common watch key had a single pipe (for fitting and turning the square winding stem of the watch) com- bined with a holder for holding and turning the pipe.
As the winding stems of different watches vary in size, six different keys of different sizes were required by a watch repairer. Subsequently, six pipes of the pro- gressive different sizes were combined radially with a single holder so as to project from it like the spokes project from the hub of a wheel. The six separate keys when lay...ing side by side on a work bench, or if tied together in a bundle, constituted an aggregation; the six pipes of different .sizes connected with one holder which is common to all constitute a mechanical combi- nation. The compound tool was a new and exceedingly useful one, as it saved the time required to take up and put down several of the single keys in order to find one that would fit the watch to be wound. The new tool when first produced was not a mere duplication or multi- plication of the old single tool, because in that case it would have had six holders as well as six pipes; nor was it a mere multiplication or duplication of the pipes of any one of the single keys, because in that case its pipes would have all been of the same size.
What to read after Patentable Invention?
You can find similar books in the "Read Also" column, or choose other free books by Renwick, Edward S. (Edward Sabine), 1823-1912 to read onlineMoreLess
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