Abstract: A battery operated portable thawing device for frozen locks has an electrically heated thawing stick sized for insertion into the key hole of a frozen lock. The stick is thinner than the lock key and comprises a hollow metal body inside which is located a thin resistance heating wire. The resistance wire is located between the middle and the end of the stick inserted into the keyhole in a relatively short length (20-30%) of the thawing stick. For use, the stick is slidable out of a protective housing adapted to be gripped in the hand. The housing carries a battery for energizing the stick and a light bulb for illuminating the keyhole. The metal body of the stick serves as one terminal for supplying current to the resistance wire. The circuit between the battery and resistance wire made automatically made when the stick is moved out of the housing for use and broken when the stick is returned into the housing.

Abstract: Automatic power shearing apparatus and method for trimming sheet material into finished blanks comprising blade means, x and y axis feeding means and sheet feeding means including a first power driven means for moving the sheet in x and y directions and a second means responsive to a control acting to move the sheet in preselected directions by a constant counter balance against the first power driven means.

Abstract: A skin structure in a doll providing simulated body temperature by fluid circulation comprised of two layers separated by studs forming passageways between said layers for the circulation of fluid of the desired temperature to impart on the surface of the doll a temperature approximating body temperature. The controlled temperature fluid may be provided in a reservoir so that the fluid can be circulated to and from the skin structure. The outer skin layer is preferably resilient. The studs are appropriately spaced between the layers and separate said layers. Other creature representations may incorporate the novel spaced layer and stud passageway construction of the invention.