A compact operating mechanism for switches and circuit interrupters provides improved input drive arrangement and more particularly to a quick-make quick-break operating mechanism for electrical circuit interrupters, i. A method of producing film comprising contacting polypropylene and polyisobutylene to form a polymeric blend, forming the polymeric blend into a film, and orienting the film. The method applies to sugars, proteins, and peptides, among other things, and can be used in a wide variety of applications. All of the components, including dowels, fabric panels, flat panels, and horizontal bars, are insertable into the rigid rectangular frames and are removable, reversible and replaceable at will and without tools to achieve many different visual effects using the same set of frames. This leads to more effective finishing of the articles of clothing with greater energy efficiency, and therefore the tunnel finisher according to the invention consumes less energy.