Abstract: A tool for installation of freeze plugs in automotive internal combustion engines comprising an elongated hollow member having a wedge in cooperative relationship with a hammer which is slidably mounted in an end of the elongated member to move in a direction orthogonal to the direction of travel of the wedge. In one embodiment, the sliding hammer is itself wedge-shaped and is cooperatively aligned with the wedge. In others, the wedge impacts a ball which in turn impacts the hammer. A driving rod extends through the end of the elongated member such that an impact force applied to the end of the driving rod is transmitted to the wedge, then through the wedge to the hammer. The hammer impacts a driving cap which imparts force to a freeze plug, driving it into position in an aperture in the engine block.

Abstract: Apparatus for applying shingles to a roof having a guidetrack connected to the roof, a pair of guiderods slidably connected to the guidetrack in perpendicular extension therefrom, a primary carriage mounted to the guiderods for movement parallel the guidetrack, a gun carriage mounted within the primary carriage, but independently supported therein for concomitant horizontal motion therewith and a chute for conveying shingles placed thereon beneath the gun carriage.