Abstract: A simulated part of the human vocal tract above the glottis is formed as a resiliently flexible, cylindrical tube with a wall of sponge/foam saturated with water and covered by a thin, flexible water retaining skin. The wall can also be a gel or skin balloon filled with water or oil. A speech simulator has a buzz generator formed by an air compressor, accumulator and regulator supplying air to an chamber filled with sound absorbing batting and having a tubular outlet connected to an inlet end of the tube and covered by a valve simulating a glottis and vocal chords and formed by a rubber membrane slit to provide two flaps controlled by respective pen motors. the tube can be constricted manually to provide various animal and human vocal sounds.

Abstract: An electrical connector of a right angle header type including a housing with a series of contact members having connecting portions and lead portions at mating and rear faces, respectively, the lead portions being bent through 90 degrees forming medial portions extending rearward from the rear face and board connecting portions extending downward so that free ends of the board connecting portions are insertable into respective connecting through-holes of a circuit board. A lead portion retaining member having lead portion locating groves on a lower face is releasably attached to the housing to extend over the medial portions to prevent upward movement thereof during insertion of the end portions into the respective connecting through-holes, thereby obviating risk of misjudgement that the connector is correctly installed on the circuit board.

Abstract: A magic set comprises a valise containing a set of props, cue sheets and a series of illustrated sheets pivotally bound together. The case can be opened to support the sheets as an elevated, horizontally extending stack to form a stage. Successively uppermost illustrated sheets of scenery can be turned over by a magician to hang vertically from the front of the stage interacting with the illustrated sheet next uppermost to provide different scenes of a continuous magic show. Indicia marked on the illustrated sheets interact and interfit with props in the performance of tricks.

Abstract: An aerial lift vehicle, having a compact configuration and separable into several parts for storage, comprising a body having wheels, a detachable vertical post, and a platform attached to the upper portion of the vertical post, and vertically movable corresponding to the telescopic movement of the vertical post.