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Toolroom
A toolroom is a room where tools are stored〔The word used in this sense is attested in written English at least as early as 1829..〕 or, in a factory, a space where tools are made and repaired for use throughout the rest of the factory. In engineering and manufacturing, toolroom activity is everything related to tool-and-die facilities in contrast to production line activity.
Originally a toolroom was literally in one room, but like ''emergency room'', the term has been figuratively extended in both substantive and adjectival senses to all such places and the methods used there, regardless of the physical space. The name was originally styled tool room or tool-room, but toolroom is now the norm in engineering and machining.
== Making, repairing, and storing tools ==
The simplest sense of the word ''toolroom'' implies merely storage. A broader use of the term includes a space where tools are made, repaired, inventoried (kept track of), and distributed for use throughout the rest of a factory. This extension of sense reflects the development of greater systemization in manufacturing. During the 19th century, there gradually developed the division of labor whereby the people who made, repaired, kept records of, stored, and retrieved tools were not necessarily the same people who used the tools to do the manufacturing work itself. Examples of division of labor had existed in prior centuries, but most manufacturing had been done on a craft basis, where there had been no need for the idea of a toolroom separate from the rest of the workshop (or a word to name it).
The simplest sense above can also be conveyed by the word toolcrib (sometimes styled tool-crib or tool crib). Although the word ''toolroom'' is still sometimes used today in those simpler senses (and probably always will be because of the obvious correspondence of word to literal meaning), mechanical engineers, toolmakers, and other trained machinists usually use the word in its abstract tool-and-die sense, which is discussed below. This restriction of sense is aided by using another word (such as ''toolcrib'') to refer to the simpler, concrete senses.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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