A plurality of ring members each having a hard metal inner ring portion, a concentric elastomeric outer ring portion and a layer of elastomeric material bounding at least one radial face, are held by a cylindrical member in a stacked relation with the open centers of the ring members aligned. A pair of end plates, each having a wire rope aperature aligned with the open centers of the ring members, are secured together by a plurality of fasteners thereby retaining the cylindrical member between t...

A method is disclosed for making a ring for sealing the opening between a reactor vessel and the wall of the cavity in which it sits. The method permits forming the sealing ring in segments at an off-site location, thereby eliminating the transportation problems encountered with an integral sealing ring. According to the method, seals and coatings can be applied to the individual segments before the segments are shipped, and the seals and coatings are completed when the sealing ring has been ass...

This disclosure relates to a mold construction particularly adapted for the blow molding of hollow articles having configurated bottoms. The mold is split longitudinally of the article and includes first and second halves each having a separate end portion. The end portions are interconnected so that when the mold is open, both end portions are retained with one mold half with one end portion moving relative to its respective mold half both longitudinally and transversely for both moving transve...

A printout device for calculators and the like includes a plurality of print segments, each encased in elastomer and embedded in a rigid block with the lower, indicia forming ends flush with the lower surface of the block. The upper end of each print segment is provided with a diametrically extending slot. Disposed above each print segment and axially aligned therewith is an electromagnetic driver element which is provided with a diametrically extending bar or key projecting from the lower surfa...

A briquetting press roll comprising a cylindrical core having a regular polygonal cross-section and a plurality of equal planar sections around its peripheral surface, each planar section having at least one transverse groove. Secured end-to-end around the peripheral surface of the core are a plurality of removable mold segments, each having a flat bottom surface coterminous with one of the planar sections and an arcuate top working surface, forming a right circular cylinder. The flat bottom sur...

Disclosed is a segmented electrochromic display and imaging device which provides for the operation of separate discrete display segments within a unitary structure formed by sandwich arrangement of imaging elements, a common counter-electrode and a common electrolyte layer. The device can be used for animated pictorial information and alpha numeric information.

This disclosure relates to a matrix assembly for treading tires and includes a pair of matrix shell halves each of which has mounted therein segments which combine to define one half of a matrix. The matrix segments are resiliently urged out of the matrix shell in guided relation so that when the matrix assembly is open for the reception or discharge of a tire, the matrix segments are expanded so as to facilitate the loading and unloading of the matrix. A principal feature is the provision of we...

Disclosed are logic circuits, comprising an array of logic elements interconnected in segmented groups of arrangement and number such that together they can generate signals representative of any required number of Boolean functions in response to binary signals applied to the logic elements in the different groups. Segmentation of associative logic permits the implementation of multiple output Boolean logic functions and sequential logic functions with optimum use of a given array area. The seg...

A briquetting press roll comprising a roll frame which retains a plurality of replaceable mold segments. The mold segments have a top working surface of a hard, highly wear-resistant material and a bottom surface opposite the top surface. Two opposite side walls connect the top working surface and the bottom surface, which side walls diverge with respect to each other from the bottom surface. Two opposite end walls also connect the top working surface and the bottom surface. The end walls includ...

A tire mold in which tread mold segments are moved radially by a coned ring between sidewall plates which bear against the moving segments. Link means connecting each segment to the upper plate enable the segments to be retracted into the ring by moving the upper plate. The link means provides sufficient relative separation between the upper plate and the segments to prevent friction, wear, and binding therebetween during such retraction.