A process for the preparation of 2,3-dimethylbutene-2 is disclosed, which comprises the steps of converting isovaleraldehyde to isopropylacrolein, hydrogenating alpha -isopropylacrolein to form 2,3-dimethylbutanol, dehydrating 2,3-dimethylbutanol to form an olefin mixture comprising 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2, and isomerizing the 2,3-dimethylbutene-1 contained in the mixture in...

The invention relates to a regulating arrangement in particular on packing machines for the feed of weblike packing material in register with decorations or folding indications, so-called crease lines, present on the web. In accordance with the invention the desired control is obtained by regulating the tension of the web with the help of a guide roller over which the web is passed. The speed of t...

An X-ray tubehead counterbalancing mechanism devoid of springs, cams and chains is disclosed. The mechanism requires only a single adjustment to precisely counterbalance objects, such as tubeheads and the like. The mechanism includes a commercially available gas spring which is used in conjunction with parallel motion linkage assembly which carries the tubehead. The piston rod end of the gas sprin...

This process consists in storing volatile products in a hydrophobic substrate comprising polymerised hydrophilic inclusions grafted onto the hydrophobic substrate by immersing the substrate comprising the said inclusions in a polar solvent containing the said volatile products, which consist, for example, of perfumes, repellents, deodorants or insecticides. The substrate thus obtained can be emplo...

The disclosure relates to an article, suitable to be worn unobtrusively and with comfort by a woman in the last stages of pregnancy, which is positioned to receive and retain the amniotic fluids when released. The article may conveniently be in a form similar to a sanitary napkin belt, or may be constructed into a hospital garment, for example. Although the fluid receptacle is capable of containin...

The compounds in question are of the nonionic type. These compounds are usable in contrast products.

PCT No. PCT/DE85/00232 Sec. 371 Date May 7, 1986 Sec. 102(e) Date May 7, 1986 PCT Filed Jul. 5, 1985 PCT Pub. No. WO86/00500 PCT Pub. Date Jan. 30, 1986.A device for cleaning shellfish consists of a chamber having two opposed brush disks, relatively moveable toward one another and at least one of the disks is rotatably driven.

A communication system capable of continuously exchanging digital information in a well logging installation between apparatus arranged on the earth's surface and apparatus arranged in an earth borehole, interconnected by a cable. Both the surface apparatus and the downhole apparatus include a controller and a modem for sending digital command messages downhole and digital data messages uphole. Th...

Radiation source for generating ultraviolet or soft X-ray radiation within the vacuum-UV region, containing a gas, which is excited and ionised by electrons accelerated by means of microwaves. According to the invention, microwaves are supplied via a waveguide (40), which terminates in an aperture fitted (48) end piece, and that end is also fitted with two projections (42, 43) pointing at each oth...

A ski attachment device having a safty feature that allows disengagement of the boot from the ski in the case of lateral or front falls of the skier. The device comprises a rear unit adapted to be attached to the ski and including a spring for applying a longitudinal forward thrust to the rear of the boot. A front unit includes a plate having a "V" shaped seat to be engaged by a grooved rotatable ...

Radiation source for generating ultraviolet or soft X-ray radiation within the vacuum-UV region, containing a gas, which is excited and ionised by electrons accelerated by means of microwaves. According to the invention, microwaves are supplied via a waveguide (40), which terminates in an aperture fitted (48) end piece, and that end is also fitted with two projections (42, 43) pointing at each oth...

Title: METHOD OF PROTECTING OFFSHORE STRUCTURES AGAINST ICEBERG IMPACTS Inventor: STIG BERNANDER The invention relates to a method for protecting offshore structures such as oil platforms against impacts from icebergs by attenuating the impact energy of the icebergs. Attentuation of the iceberg's energy is achieved through the use of cables, chains or other flexible tension members which are attac...

An intramedullary splint for use with fractured long bones such as the femur comprises an elongate tube 12 having clamping means 28 located towards one end 26 thereof. The clamping means comprise wings 28 movable, from the other end of the tube 12, from an operative to an inoperative position. When the clamping means is in the operative position. the other end of the tube 12 can locked onto the bo...

PURPOSE:To speed up the information transfer and to execute simultaneously reading and writing by providing plural memory element groups. CONSTITUTION:Memory element groups 10-13 and those 20-21 are provided, and on both element groups equivalent information is stored, while at the time of reading, the element groups 20-21 capable of high speed reading are used. In this case input signals phiin ar...

A water bed includes a water-filled bladder resting upon a base having a semi-flexible outer framework providing lateral support for the periphery of the bladder. The outer framework is divided into a lower wedge-shaped portion affixed to the base, and a movable wedge-shaped upper portion resting on the lower wedge and hinged to the base along the inside edge of the lower wedge. The periphery of t...

Method and apparatus for processing shrimp and like arthropoda, comprising a housing, positively driven transport means disposed within the housing and containing a plurality of peripherally extending needles for engaging and impaling deheaded shrimp in a predetermined attitude to sequentially advance them through a plurality of operating stations in a path, defined at least in part, by a selectiv...