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The Patent Law of 1836 allowed for inventors to receive a seven-year extension after the expiration of the 14-year term permitted at that time. In 1842, Woodworth's son William W. received an extension, and successfully lobbied Congress in 1845 for another extension, thus extending the patent until 1856.
A thickness planer (also known in the UK and Australia as a thicknesser or in North America as a planer) is a woodworking machine to trim boards to a consistent thickness throughout their length. This machine transcribes the desired thickness using the downside as a reference / index.
A planer is a type of metalworking machine tool that uses linear relative motion between the workpiece and a single-point cutting tool to cut the work piece. [1] A planer is similar to a shaper , but larger, and with workpiece moving, whereas in a shaper the cutting tool moves.
Craftsman No. 5 jack plane A hand plane in use. A hand plane is a tool for shaping wood using muscle power to force the cutting blade over the wood surface. Some rotary power planers are motorized power tools used for the same types of larger tasks, but are unsuitable for fine-scale planing, where a miniature hand plane is used.
2004: First podcast, invented by Adam Curry and Dave Winer, is a program made available in digital format for download over the Internet and it usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. [545] [546] [547] 2005: YouTube, the first popular video-streaming site, was founded
This was made entirely of iron and being precision-made was able to operate at high speed. They were turned out at the rate of 4,000 per year by 1825. In 1824 he invented his most famous machine, the self-acting spinning mule, and patented it in March 1825. [4]
Bramah was a very prolific inventor, though not all of his inventions were as important as his hydraulic press. They included: a beer engine (1797), a planing machine (1802), a paper-making machine (1805), a machine for automatically printing bank notes with sequential serial numbers (1806), and a machine for making quill pen nibs (1809).
Nasmyth subsequently applied the principle of his steam hammer to a pile-driving machine which he invented in 1843. His first full scale machine used a four-ton hammer-block, and a rate of eighty blows per minute. The pile driver was first demonstrated in a contest with a team using the conventional method at Devonport on 3 July 1845.