APPARAT FOR DRAGNING AV GLASFIBRER

摘要

A precision winder having a traverse mounted in a fixed position and a spindle mounted for rectilinear movement away from the traverse in response to the growth of a package being formed on the spindle. The spindle is driven by a D.C. motor and a D.C. speed control is provided to control the speed of the motor in response to movement of the spindle away from the traverse. The main control potentiometer for the speed control is linear and adjusted in response to movement of the spindle away from the traverse by a cam proportioned to effect non-linear adjustment of the potentiometer at a rate proportional to the decrease in spindle speed required to maintain drawing speed constant as the package grows.