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Benchtop drill press (left) and floor-standing drill press (right) A drill press is a drilling machine suitable for quick and easy drilling of straight holes, countersinking or counterboring that are perpendicular to both directions of a table surface. In comparison, it is more difficult and less repeatable to drill perpendicularly with a hand ...
In this simple diagram of a drilling rig, #20 (in blue) is the rotary table. The kelly drive (#19) is inserted through the center of the rotary table and kelly bushings, and has free vertical (up & down) movement to allow downward force to be applied to the drill string, while the rotary table rotates it.
Benchtop Walker-Turner Drill Press Walker-Turner Co. was founded around the end of the 1920s by Ernest T. Walker and William Brewer Turner , who built machines for home and light industrial use. It was acquired by Rockwell Manufacturing Co. in 1956 and Walker-Turner branded machines continued to be sold into the 1960s.
A drill press Drill press (then called a boring machine) boring wooden reels for winding barbed wire, 1917. A drill press (also known as a pedestal drill, pillar drill, or bench drill) is a style of drill that may be mounted on a stand or bolted to the floor or workbench. Portable models are made, some including a magnetic base.
The phonograph, in its later forms also called a gramophone, record player or turntable, is a device introduced in 1877 for the mechanical recording and reproduction of sound. Phonographs can also specifically refer to machines that only play Phonograph cylinder s, the gramophone is an advanced version of the phonograph that only plays disc ...
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