Apparatus for adjusting and indicating the tension in a guy line

A tension indicator device used in conjunction with a guy line system of an inclined oilwell derrick, comprising a hydraulic compression load cell, a pair of interlocking U-shaped yokes housing said load cell, each yoke having an outer end and an inner base portion, a pressure generating plunger connected to said load cell and positioned against the base portion of the U of one interlocking yoke of said pair of interlocking yokes while said load cell is positioned against the base portion of the U of the other of said interlocking yokes of said pair of interlocking yokes, whereby, when a tension force is applied to the ends of said yokes, a compression force will be applied to said load cell and said plunger through said base portions of said yokes, an initial tensioning means mounted on one of said outer ends and providing an initial tension load to said guy line system, a fine adjustment means affixed to the other of said outer ends and providing a finer adjustment of the tension provided by said initial tensioning means, a plurality of attachment means rotatably mounted on the ends of said tension indicator device providing a means to insert said tension indicator device between a set of intermediate chains of said guy line system, and a calibrated pressure gauge directly attached to said load cell;

• and whereby said interlocking yokes transfer a linear tension load into a compression force in said load cell by means of said plunger and wherein said compression force is transmitted as a pressure signal to said pressure gauge.