Abstract: A portable, adjustable door lock device and method of use therefore, which provides a device having a first and second blade member which are pivotably pinned together, thus, forming substantially a "V-shaped member" having two pointed ends, with the ends being insertable and adjustably positionable between the edge of a door and the striker plate affixed to a door frame, so as to frictionally capture the reciprocable bolt therein, thus, preventing opening of the door from the exterior side.

Abstract: A method and apparatus for practicing the method by which a reciprocating saw may be utilized to cut within the edges of a panel of material without the necessity of providing a pilot hole or the like for the saw blade, wherein the saw blade is configured in such manner as to taper at the end not attached to the saw motor in order to come to a point and wherein a knife edge is supplied along the edges of said tapered portion of said saw blade, wherein the saw blade at its pointed and tapered end is allowed to cut through the panel of material being sawed with the sawing action commencing immediately after full penetration of the blade through the material.

Abstract: A folding ladder primarily designed for use of roof estimators wherein said folding ladder is long enough to get to the average roof, but is yet not cumbersome to handle as are most extension ladders, and wherein the ladder hinges and folds into a flat package when not in use, with sliding side rail locking devices which also fold and hinge when not in use, but when extended which slide over the hinge positions of the ladder, and hold it in full length for use, additionally provision is made for a separate and distinct extension element having sliding side locking rail devices.