Abstract: A device to tear the perforated margins off of a stack of computer paper is described. The device has a base which contains a waste receptacle in one embodiment that will catch the removed margins. The device uses a lower and upper elastic rib in one embodiment and a lower elastic rib only in another embodiment. The clamping mechanism is pivotal and the design is such that a given force on the handle will provide a greater than the given force clamping the paper margins. The clamping mechanism is either activated by hand or by power means, preferably an electric solenoid.

Abstract: A device for lifting and tilting an object in one plane alone or in two planes simultaneously is described. The device for tilting an object in one plane comprises a rectangular frame with two end blocks and a carriage with wheels contained inside the frame. The carriage has a threaded hole to receive a threaded rod also located inside the frame with the rod extending through the end blocks. A crank on one end when turned moves the carriage in the frame. An eyebolt on the carriage is hooked to a hoisting chain and the lifting means is attached to both the end blocks and the object to be lifted. When the object is lifted, and the crank is turned, the center of gravity is moved away from being concentric with the hoisting chain and the object is tilted.