GB190622743A - Improvements in the Manufacture of Garden Shears - Google Patents

Abstract

22,743. Harrison, B. S. Oct. 15. Shears.-The blanks of garden shears are cut from sheets or strips of steel, with the parts intended for the tang in duplicate form of the intended finisbed tang, so that it can be doubled upon itself to form a tang of double the thickness of the blade and also to provide a suitable stop for the blades when put together. The blanks B, Fig. 2, are cut out of a sheet of steel with the duplicate parts of the tang on the left side. The tang part is heated and bent back upon itself along the line L and then flattened. The tang, while still heated, is then bent in suitable dies at an angle with the blade, as shown in Fig. 5, to give the necessary clearance ; it is then suitably bent in other dies to give the necessary elevation to the handles. If cut from strips of steel, the blanks are of the shape shown in Fig. 9, with the duplicate part of the tang on the right side. The blank is then treated as above. The part of the tang that is bent over may be made hollow or semitubular. The bevelled cutting-edges are reduced to the required form by pressing or forging. While still heated, the blanks are pressed in suitable dies to give the proper set to the cutting-edge, and are then hardened, tempered, and ground, and fitted together in pairs as usual.