before. On the face of the blade <? is a friction device,/, act-ing upon the set-screw,^, and tending to prevent itschanging bv accident. The hinge joint is adjustable,to take upthe slight wear that might occur at thatpoint. a PRICE -Alteneder Patent Spring-Hinge Pen,[Fig. 1.] [Fig. 2.J 6>^… … To clean, do not touch the screw ; lift the lever. Oijened and closed instantly, and without removing the screw or dis-turbing its adjustment for width of line. The Lever Pen is made in one piece, with the upper blade in the formof a spring, the action of which is such as to constantly press the…
