while the lift motor 26 the boom motor 28 and the material engaging head motor 30 in this preferred embodiment are electric screw thread drives rams cables and pulleys or even eccentric levers may be substituted as will become evident in the following detailed description left controller 32 and right controller 34 of this preferred embodiment are actually modified power drill housings and circuitry other switch devices may be utilized in accord with the example circuit of fig1 and are intended to be encompassed within the scope of the present invention furthermore primarily for purposes of convenience and portability this preferred embodiment for device 20 derives its power from a pair of 12 volt batteries 132 and 134 housed within battery box 38 clearly the present invention could be constructed to operate on alternating current by modifying the circuitry and providing a receptacle for the source of such power in fact though believed to be somewhat cumbersome the present invention could be modified for mechanical pneumatic or hydraulic operation referring to the drawing figures fig1 illustrates a preferred embodiment for device 20 as shown therein device 20 includes a base generally indicated as 40 for supporting device 20 on a support surface 42 and movement across.