COILING BY WORK GUIDE MEMBER ORBITING ABOUT LONGITUDINALCENTERLINE OR FORMED COIL:
(under the class definition) Subject matter comprising a step of, or means for, wrapping work* about an axis-of-bend* through more than 360 deg. of wrap by an element that engages the work with sliding contact and revolves about, and is radially spaced from said axis-of-bend.
(1) Note. Any point of the work traces an involute curve as the work is wrapped about the axis-of-bend. The operation usually includes movement of the wrapped work relatively along the axis-of-bend simultaneously with the wrapping thereof. By this relative movement, the product formed is a helical-coil rather than a spiral-coil. The pitch of the formed helical-coil depends on the speed of the relative axial movement during the period of time needed for one convolution of 360 deg. of wrap. (See the definition of coil* in the Glossary of this class for discussion and illustrations of the terms used).
SEE OR SEARCH CLASS
29, Metal Working,
728, for apparatus similar to that of this subclass for making of armored cable; and subclass 435, for a process similar to that described herein, but assembling two (or more) workpieces.
