| 摘要 |
A tool for producing a loop in a straight wire includes a base having a vertical wall extending therefrom. A shaft extends from the wall and has a crank rotatably mounted thereto. Indicia on the wall measure the degrees of a circle about the shaft. A linear groove radially extends from the shaft and to the 12 o'clock position. Upon placement of a first portion of a straight wire in the linear groove, the remaining second wire portion extends out of the linear groove and towards the six o'clock position. The length of this extension is measured by indicia on the wall. Upon placement of a crank on the shaft a post on the shank seats into a circular groove about the shaft. Rotation of the crank about the shaft causes the post to contact the second wire portion and bend the wire about the shaft to form a loop. Indicia in the form of the degrees of the circle enable the user to measure the degree of crank rotation so that consistent wire loops may be subsequently formed. A stop post can be releasably insertable in the wall face to preclude rotation of the crank beyond a desired position.
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