Abstract: A multiple section keyboard includes a universal support for each section permitting unrestricted orientation of each section. A vertical adjustable support includes a telescoping cylinder unit or a three point linkage support. A ball unit connects the vertical support to a slide unit for lateral placement. The ball unit provides rotational and pivotal positioning. A lock unit is coupled to the ball unit and simultaneously looks the ball unit, the linkage unit and the slide unit in place. A separable ball connector may also connect the top inner corners of two keyboards to maintain a V-shaped board configuration. Each section has a separate extendible spacer bar formed with a telescoping portion adapted to be extended outwardly and latched in place between angularly related and spaced keyboard sections. A separate number 6 key unit is provided for coupling to either section for inputting of the digit from that section.

Abstract: A forearm support apparatus for a keyboard operator is disclosed including first and second forearm support units. Each of the support units includes a base member having a tapered wall and a flat bottom wall. A complementing upper member has a similar taper and is secured to upper wall and an inverse orientation to raise the tapered wall to a top surface. The top member is formed of a highly resilient compressible material to receive the forearm which depresses the material and supports the forearm. The support units are mounted in laterally spaced relation with the tapered upper walls extending inwardly and downwardly toward each other. The forearms are thereby biased inwardly toward each other in restrict outward displacement. The members are formed symmetrically about a transverse plane generally parallel to the keyboard. The top member has a shorter length than the bottom member to define forward and front and back recesses.

Abstract: An input keyboard unit includes a left and right keyboard. A separate universal pivot support unit is secured one to each keyboard and to a base support plate. Each universal pivot unit includes a telescopic shaft with a releasable connector for holding of the shaft in desired extended position. One end of the shaft or post unit is secured to the keyboard through a mounting plate. A ball and socket unit is secured to the opposite end and through a tongue and groove connection to a base plate for lateral positioning of the pivot units and the attached keyboard relative to each other. The ball and socket unit allows universal pivoting of the keyboard about the mounting to the base plate and thereby permits the optimal positioning of the keyboard with respect to the hands of the operator. In one embodiment, the two separate keyboard boards are generally rectangular members.