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The Brooks Patent T-square Lock

Nature volume 85, page 5 (03 November 1910) | Download Citation

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Abstract

THIS very useful adjunct to the ordinary T-square is one of the best of the devices which have recently been introduced to facilitate the work of the draughtsman, and it will be much appreciated by all who are engaged in mechanical and architectural drawing. The contrivance is simple in character, moderate in price, and well made, and is designed so as to be readily attachable to any existing square, no altera tion of the drawing board being required. By its use the T-square, without loss of freedom, is instantly locked in any desired position on the board, thus freeing both the hands of the operator. The lock may be put out of action at will, and the T-square manipulated in the ordinary manner. The “lock” attachment. will be found extremely serviceable when used with a board which rests horizontally, as on a table, but when the board is much inclined or is vertical, the employment of this or a similar device is indispensable. There are many teachers who might with great advantage utilise this apparatus for blsick board work.

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DOI

https://doi.org/10.1038/085005d0

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