Ethylene glycol is prepared by a process in which ethylene oxide is extracted from an aqueous solution with near-critical or super-critical carbon dioxide. Thereafter an ethylene oxide-carbon dioxide-water mixture is contacted with a catalyst to form ethylene carbonate, which is then hydrolyzed to ethylene glycol in the presence of the same catalyst. The ethylene glycol is separated as product and...

A central differential for a four-wheel drive motor vehicle is provided on a pair of axles for right and left drive wheels. The differential has a tubular member secured to a final gear of a transmission, a pair of carriers one of which is connected to the drive wheels and the other carrier is operatively connected to the other drive wheels. A pair of annular side gears are securely provided on th...

A central differential for a four-wheel drive motor vehicle is provided on a pair of axles for right and left drive wheels. The differential has a cylindrical differential case connected to a final gear of a transmission, a pair of carriers provided in the differential case one of which is connected to the drive wheels and the other carrier is operatively connected to the other drive wheels. A pai...

Sheet deposit means comprises a roller blind conveyor (23) which is guided at both sides in upper and lower guide rails and introducible above a sheet stack (4), and carrier means for a stack plate (5), the carrier means being attached to the lower guide rails of the conveyor. As described, sheets 3 are deposited on stack 4 until the correct height is reached, when stack 4 is lowered and stack pla...

There is described a ultra-miniature electromagnetic valve assembly smaller than 1 mm in diameter of inlet and outlet ports and having a valve casing of approximately of 10 mm in plan view side length, the valve assembly of the type formed by connecting separately fabricated valve casing and electromagnetic operating section and comprising: an inlet port and an outlet port provided on one side sur...

Centrifuge comprising two drums (1,2) having coaxial horizontal axes. The inner drum carries a set of dishes (33) and, on the periphery, a scraper screw (36). A sludge chamber (23) is provided at one end of the outer drum (2) and, by way of passages (28) adapted to be closed by a discharge device, is in communication with the outside. The centrifuge is provided with a double energy recuperation de...

PCT No. PCT/SE84/00007 Sec. 371 Date Sep. 12, 1984 Sec. 102(e) Date Sep. 12, 1984 PCT Filed Jan. 13, 1984 PCT Pub. No. WO84/02806 PCT Pub. Date Jul. 19, 1984.An electrode for a lead acid battery, comprising a frame of an acid resistant plastic material which holds a current grid and active material covered by a porous previous web or the like, characterized in that the electrode comprises two or m...

A tire building machine and method utilizes an annular rotatable expandable drum or deck (12). Associated with each deck edge is a bladder assembly (17, 18) which, when inflated, causes the portion of the tire material overlapping the deck edge (15, 16) to fold back upon itself at such edge to form a folded edge, as in a belt folding machine, or to wrap around a bead, as in a tire building machine...

The invention relates to a method and an apparatus for providing sanitary goods with attachment means for attaching to under-clothing. Elongated slits are formed at given intervals into a sort and elastic plastic foam sheet being the layer adjacent the underclothing; openings are formed by stretching the foam sheet at a given percentage so as to open the slits. The foam sheet is rolled and left fo...

Apparatus and method for inspecting the finish of transparent containers, particularly glass containers, which include facility for directing diffused light energy laterally through the container finish as the container is rotated about its central axis. A camera includes a plurality of light sensitive elements disposed in a linear array angulated with respect to the container axis to view the ext...

Apparatus and method for inspecting the finish of transparent containers, particularly glass containers, which include facility for directing diffused light energy laterally through the container finish as the container is rotated about its central axis. A camera includes a plurality of light sensitive elements disposed in a linear array angulated with respect to the container axis to view the ext...

A conveyor (3) on which tires (P) are suspended, with sufficient travel to ensure that they dry out following treatment, for conveying them through a distribution chamber for the solution, equipped with devices for discharging jets of the solution; a movable arm (14) is inserted in between two adjacent tires and temporarily lifts off at least one of them in order to rotate it in front of the disch...

The present invention comprises a heat shield element (60) having a central opening (62) for receiving the reduced diameter portion (40) of a piston (16) of a disc brake (10). The heat shield element (60) is disposed between a metallic retainer ring/heat shield (50) and the convolutions of a flexible boot seal (30). The retainer ring/heat shield (50) maintains the axial position of the heat shield...