Adjustable clipper head

Claim 1

IN A HAIR CLIPPER HAVING A CASE, AN ADJUSTABLE CLIPPER HEAD COMPRISING: A TRANSVERSELY YIELDABLE PLASTIC PART SECURED TO THE FORWARD END OF SAID CASE, SAID PART HAVING SIDE PORTIONS AND FRONT AND REAR PORTIONS DEFINING A GENERALLY RECTANGULAR CENTRAL OPENING; AN INWARDLY DIRECTED GUIDE FLANGE ON EACH SIDE PORTION HAVING FRONT AND REAR SHOULDERS DEFINING STOPS; A TRANSVERSE METAL PLATE WITHIN SAID PLASTIC PART, THE ENDS OF SAID PLATE ENGAGING SAID SIDE PORTIONS AND GUIDED THEREBY FOR LONGITUDINAL MOVEMENT, SAID ENDS HAVING REDUCED PORTIONS ENGAGING UPPER SURFACES OF SAID GUIDE FLANGES; SAID PLATE HAVING A TRANSVERSE RECESS THEREIN; A COMB BLADE SECURED TO SAID METAL PLATE AND ENGAGING LOWER SURFACES OF SAID SIDE PORTIONS; A TRANSVERSE ROTATABLE MEMBER JOURNALLED AT LEAST IN PART IN SAID PLASTIC PART AND HAVING AN ELONGATED KEY EXTENDING INTO SAID TRANSVERSE RECESS OF SAID METAL PLATE, WHEREBY ROTATION OF SAID MEMBER MOVES SAID PLATE LONGITUDINALLY OF SAID PLASTIC PART BETWEEN SAID STOPS, SAID COMB BLADE MOVING WITH SAID PLATE; AND RESILIENT MEANS ON SAID ROTATABLE MEMBER EXERTING INWARD PRESSURE ON SAID SIDE PORTIONS WHEREBY A FRICTIONAL AND WEAR-COMPENSATING RELATION IS ESTABLISHED BETWEEN SAID METAL PLATE AND SAID SIDE PORTIONS.