Metal worker's 90 bend layout ruler

Details Metal worker's 90 bend layout ruler Metal worker's 90 bend layout ruler

B - Operations, Transporting

43

L

33/88

B43L 13/00 (2006.01) B25H 7/02 (2006.01) G06C 3/00 (2006.01)

Patent

CA 1302078

ABSTRACT OF THE DISCLOSURE A novel layout ruler is provided to perform flat layout patterns directly on sheet metal stock, i.e. to mark the total length, or the shear cut size, of the sheet metal stock and to marls the sight line for bending the sheet metal stock. The ruler includes a body member having a scale component drawn along its central longitudinal axis and a scale blade component provided with a plurality of spaced-apart transverse lines extending from at least one side edge of the body member. The scale blade component includes: (i) one pair of spaced-apart lines representative of the inside bend radius (R); (ii) at least one pair of spaced-apart lines representative of the set back (SB); (iii) one pair of spaced apart lines representative of the bend allowance (BA); and (iv) at least one pair of spaced-apart lines representative of the material deduction (MD). Upon use of such ruler, as described herein, the total length of the sheet metal stock can be determined, and the sight line can be marked directly thereon.

591045

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