(under subclass 1) Apparatus in which a binder encircling the material is tensioned to increase its tightness about the material and while so tensioned has spaced portions secured together.
(1) Note. The joining in the patents classified in this subclass is often done by electric welding.
SEE OR SEARCH CLASS
53, Package Making,
138.6+, for apparatus for tightening and joining a flexible filament which serves as a bag closure string.
140, Wireworking,
93.2, for binder tensioning and joining implements, i.e. manually or work supported devices. 219, Electric Heating,
