The side-by-side panels of a standing T-rib roof can be provided in any necessary lengths due to a smooth telescopically interfitting arrangement lengthwise between adjacent panel sections. One end portion of each panel section is tapered without cutting or crimping the metal thereof and when slipped endwise into the untapered end portion of another panel section forms a smooth slip joint of uniform cross sectional dimensions in relation to the complete assembled panel. An improved clip for atta...

A wall structure for merchandise display in a retail store or the like that stands free of attachment to any fixed element of the building such as floor, ceiling or wall. The wall of the invention may be set up in a variety of forms such as rectangular, zigzag, linear, polygonal, etc., and comprises in all arrangements uprights providing corner units and spacer struts for supporting display panels. To said uprights are secured by quick-detachable means upper and lower stringers, the interconnect...

An apparatus for exercising the calf muscles defined by a framework in which a top extremity thereof is provided with a pair of horizontally extending arms pivoted to a pair of top frame members interconnected and capable of rotation, shoulder pads disposed on the bottom face of these rods at extremities remote from the pivot point, a rigidifying cross brace provided with an opening through which a vertically extending rod is adjustably pinned. This rod traverses through a plurality of weights w...

A free standing fireplace having a base, a fire pot mounted on the base, a fire pot housing ring encircling the fire pot, a substantially cylindrical combustion chamber vertically mounted on the ring, and a conical hood mounted on the combustion chamber. The hood has on its interior a substantially horizontally projecting, upwardly spiraling flange for imparting a circular motion to combustion fumes rising through the hood. The fire pot housing ring preferably contains two oppositely disposed ai...

A macro for use by an application program is described. The macro is embedded in a macro file including at least two versions of executable configuration code corresponding to two different operating systems to interface the macro file to an application program. Attached to the macro file is a sequence of actions to apply to an application file produced by the application program. Also attached is application identification information that identifies an original host application corresponding t...

A panel system is disclosed for partitioning a room area and releasably supporting selected articles of furniture in which the panels are provided with cooperating grooves and male locking elements in their outer edges and slotted top and bottom junction plates are releasably inserted into locking engagement with the top and bottom grooves, respectively, to position connected panels in closely spaced, edge-to-edge relation to one another. A spline is releasably inserted in adjacent vertical groo...

An antenna which is constructed exclusively of fiberglass, with the sole exception of the electrical conductors, couplings, and upper and lower ends, which may incorporate fiberglass or some other material, which antenna is constructed in a series of lengths, or in a single length in the case of a very short antenna, each of the lengths being essentially of hollow tubular construction, with the walls of the tube made up of alternate layers of glass fiber filaments, one such layer being made up o...

An efficient fluid pump which has a chamber for receiving the fluid to be pumped and a transducer for establishing a travelling wave in the fluid. The length of the chamber and the frequency of the transducer are adjusted so that a standing wave pattern is set up in the fluid having one or more pressure nodes and one or more pressure antinodes in it. At least one entrance port is provided in the chamber at the pressure nodes and at least one exit port is provided in the chamber at the pressure a...

A doll that includes a pair legs pivotally attached to a torso. The torso having a front side and backside. A pair of motor mechanisms separately attached to each leg for pivoting the legs forwards and backwards in accordance to a set of pre-programmed positions that moves the doll from a first orientation to a second orientation. The movement may be defined as rolling the doll from its front side to its backside and vice versa, as well as moving the doll to a standing position and walking the d...

An easel designed for classroom use and modifications thereof are disclosed wherein the novel construction includes an arrangement of at least one drawing panel and at least two support members for said drawing panel, all arranged for contact with the floor of the classroom, whereby each of these elements furnishes structural support for the remaining elements and each of the elements provide frictional contact with the floor of said classroom to stabilize said easel against movement by users. T...