. Automotive industries . s claimed togive with a wheel tractor some of the advantages of thecreeper type. There are seven cast steel shoes, cast integ-rally with the links of the chain. The links are joined to-gether with hardened, cold rolled steel pins, fitted with rol-lers, which pass through elongated holes in the ends of thelinks. These elongated holes allow a reciprocating actionto take place between the ends of the links. Upon this re-ciprocation depends the proper movement of the separatelinks as they pass over the sprocket. At the center of eachlink there is an additional pin with ro
. Automotive industries . s claimed togive with a wheel tractor some of the advantages of thecreeper type. There are seven cast steel shoes, cast integ-rally with the links of the chain. The links are joined to-gether with hardened, cold rolled steel pins, fitted with rol-lers, which pass through elongated holes in the ends of thelinks. These elongated holes allow a reciprocating actionto take place between the ends of the links. Upon this re-ciprocation depends the proper movement of the separatelinks as they pass over the sprocket. At the center of eachlink there is an additional pin with roller which takes thethrust from the sprocket teeth. The complete tread unit is mounted on a cast steelsprocket which is secured to the side of the regular trac-tor wheel. The tread can be removed by removing one pin,stretching the links flat on the ground and rolling thetractor off. The sprocket does not interfere with the opera-tion of the round wheel. This tread is made especially forthe leading makes of garden Above—Miller traction tread To the right—Bentz tractor lags, single-unit and two-unit types
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
