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The term universal joint was used in the 18th century [10] and was in common use in the 19th century. Edmund Morewood's 1844 patent for a metal coating machine called for a universal joint, by that name, to accommodate small alignment errors between the engine and rolling mill shafts. [14]
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.
However, the Boston Fire Department was the first major customer of the Halligan bar, purchasing one for every fire company in the city. This led to widespread adoption of the tool, first in North America and eventually worldwide. The Halligan bar has become the most versatile hand tool for fireground tasks over the past seven decades. [7] [6]
Hardy Spicer is a brand of automotive transmission or driveline equipment best known for its mechanical constant velocity universal joint originally manufactured in Britain by Hardy employing patents belonging to US-based Spicer Manufacturing. Hardy and Spicer soon became partners. Later Spicer became Dana Holding Corporation.
In this case, the tool bits are of the brazed carbide type. Boring bar marked B. A boring bar is a tool used in metalworking and woodworking. Boring is a technique used in many aspects of building. Woodworkers have used boring as a form of drilling for centuries. In woodworking, the boring tool is static in size and used to form circular plunge ...
A crosshead as part of a reciprocating piston and slider-crank linkage mechanism. Cylindrical trunk guide Hudswell Clarke Nunlow; crosshead and two slide bars. In mechanical engineering, a crosshead [1] is a mechanical joint used as part of the slider-crank linkages of long stroke reciprocating engines (either internal combustion or steam) and reciprocating compressors [2] to eliminate ...
This allowed joints in stock as thin as 10 millimetres (0.39 in). Later a bigger tool was introduced allowing tenon sizes up to 14x140 mm, opening many carpentry use cases for the tool family. The tool series was envisioned from the beginning for high workflow efficiency, namely: - single-operation workflow
The cheater bar itself can become part of a de facto catapult with the worker in the line-of-fire. [ 1 ] The overtorqueing sometimes results in the failure (breakage and forceful scattering) of any of the items in the jury rig (e.g., socket, breaker bar, wrench, pipe) or of the components being worked on (e.g., nut, bolt, loadbinder), and when ...