Abstract: A chair with adjustable seat height in which the height change, made to suit the size of a given occupant, will at the same time change the height of the back rest above the seat. The amount of rise of the back rest is arranged to be in accordance with the proportions of average people. There is a pivoting, four-bar parallelogram-type linkage which raises the back support relative to the seat as the seat is raised. The front part of the linkage is fixed in height while the rear part raises and lowers the seat back. The linkage is rotated upward at the rear of the chair by one pin in the middle of the linkage which rises with the seat. An additional movement is developed in the linkage by having it bent downward toward the rear of the chair. The movement developed is a shifting of the seat back rearward of the seat as the seat rises.

Abstract: A monocoque building shell is made up of multiple sections of a compound curved shape. Along the axial length of the building the walls and roof are madeup of a repeated smooth wave form, the amplitude of the wave being in proportion to the stresses generated in the shell as a function of its weight and shape and assumed loads such as snow. In the transverse direction the roof is an hyperbolic shape from the roof center to the corner where the shape curves downward into vertical walls. The wall construction is of insulative foam in a sandwich between inner and outer skins of fiberglass.

Abstract: The elevation and angle of a desk top are independently adjustable with the exertion of a minimum of manual force, thereby facilitating the use of the desk by handicapped or disabled persons. The desk is provided with a torsion bar to substantially ease elevational adjustments and with a parallel lever arm construction which permits such adjustments without changing the angle of the desk top. The height and tilt angle of the desk top are each securely fixed by means of a pair of serrated, interlocking discs which are spring loaded to permit them to be easily locked or unlocked with only a few turns of an adjustment handle. In addition, frictional washers are utilized in conjunction with this spring loading to substantially maintain the position of the desk top even after the discs are unlocked, further facilitating angular and elevational adjustments by persons of impaired physical strength.