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Chuck (engineering) A chuck is a specialized type of clamp used to hold an object with radial symmetry, especially a cylinder. In a drill, a mill and a transmission, a chuck holds the rotating tool; in a lathe, it holds the rotating workpiece. [1] Chucks commonly use jaws to hold the tool or workpiece. The jaws (sometimes called dogs) are ...
Improvements in lathe chucks: James Buckingham: Charles Churchill: 28 Oct 1868 [14] 2899 [15] 6 Nov 1866: An improved chuck for holding drills and other tools: Charles Churchill: Albert Beach: 3696 [16] 27 Dec 1867: An improved gas-burner: Charles Churchill: Willis Churchill: 3173 [17] 15 Oct 1868: Improvements in sporting breech-loading fire ...
A machine taper is a system for securing cutting tools or toolholders in the spindle of a machine tool or power tool. A male member of conical form (that is, with a taper) fits into the female socket, which has a matching taper of equal angle. Almost all machine tool spindles, and many power tool spindles, have a taper as their primary method ...
In machining, a metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to machine metals ; however, with the advent of plastics and other materials, and with their inherent versatility, they are used in a wide range of applications, and a broad range ...
The South Bend Lathe Works was established in 1906 in South Bend, Indiana by identical twin brothers John J. O'Brien and Miles W. O'Brien. [1] By 1930, the company was building 47% of the engine lathes sold each year in the United States. [2] In a quarter century, South Bend Lathe Works had become the largest exclusive manufacturer of ...
The introduction of CNC-controlled lathes has provided a practical, everyday solution via automated CSS Machining Process Monitoring and Control. By means of the machine's software and variable speed electric motors , the lathe can increase the RPM of the spindle as the cutter gets closer to the center of the part.
SN 2011fe [1] SN 2011fe, initially designated PTF 11kly, was a Type Ia supernova discovered by the Palomar Transient Factory (PTF) survey on 24 August 2011 during an automated review of images of the Messier 101 from the nights of 22 and 23 August 2011. It was located in Messier 101, the Pinwheel Galaxy, 21 million light years from Earth. [3]
Philip Kindred Dick (December 16, 1928 – March 2, 1982), often referred to by his initials PKD, was an American science fiction writer and novelist. [1] He wrote 44 novels and about 121 short stories, most of which appeared in science fiction magazines during his lifetime. [2]
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