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2. John Wilkinson (industrialist) - Wikipedia

   en.wikipedia.org/wiki/John_Wilkinson_(industrialist)

   With this machine he was able to bore the cylinder for Boulton & Watt's first commercial engine, and was given an exclusive contract for the provision of cylinders owing to the lower tolerance between the piston and cylinder and the resulting improvement in efficiency by lowering steam losses through the gap.

3. Boring (manufacturing) - Wikipedia

   en.wikipedia.org/wiki/Boring_(manufacturing)

   A part's-eye view of a boring bar. Hole types: Blind hole (left), through hole (middle), interrupted hole (right). In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder.

4. Timeline of steam power - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_steam_power

   1774 (): John Wilkinson invents a boring machine capable of boring precise cylinders. The boring bar goes completely through the cylinder and is supported on both ends, unlike earlier cantilevered boring tools. [11] Boulton in 1776 writes that "Mr. Wilkinson has bored us several cylinders almost without error; that of 50 inches diameter, which ...

5. Honing (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Honing_(metalworking)

   Auto-gauging single-pass honing machine for precise finishing. A honing machine is a precision tool used in machining to improve the surface finish and dimensional accuracy of component. It operates by using abrasive honing tools, which rotate and reciprocate inside the components, typically a cylinder or bore.

6. Hydraulic cylinder - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_cylinder

   The hydraulic cylinders on this excavator operate the machine's linkages. Hydraulic cylinders in a hot press of a particle board machine. A hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke.

7. Bore (engine) - Wikipedia

   en.wikipedia.org/wiki/Bore_(engine)

   Engine displacement is calculated based on bore, stroke length and the number of cylinders: [1] displacement = π ( ⁠ 1 / 2 ⁠ × bore ) 2 × stroke × n cylinders. The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds or torque at lower engine ...