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...

In order to design a sheet feeder with a nonstop-device with stringers suspended at lifting chains and cross bars carried by the stringers for supporting bars that serve as base for a remaining pile, in such a way that the remaining pile, which is on the bars of the nonstop-device, is laterally adjustable, the stringers are seated in longitudinal guideways, extending in direction of lifting, and t...

A method of making coreless hollow filament bundles comprises winding a hollow filament 20 around a drum 22 having a number of axially extending vanes 24. The winding is formed in layers, each layer being a helix and adjacent layers being wound in opposite directions axially of the drum so that all the turns of the helix forming one layer cross all the turns of the helices forming the adjacent lay...

A light source, a light projecting body, a plurality of optical fiber bundles and a sensor is provided. The light projecting body is provided with a central bore along which the sensor is aligned and a plurality of passages for a respective fiber bundle extending therethrough in communication with the central bore. The central bore is equal to or larger than the mouth of the bottle to be examined ...

Fragrance-emitting articles comprising a polyurethane foam containing a particulate filler and a fragrance material, and a method of making such articles, are disclosed. The method includes the essential steps of pre-mixing particulate filler and fragrance and dispersing the pre-mix in a liquid polyol, before adding the other reaction mixture components, and provides a polyurethane foam having a c...

A composition of matter comprising the reaction product of a bitumen and a fatty oil e.g. asphalt and castor oil, and a process of preparation therefor. The reaction product is combined with a ployhydroxy compound and a polyisocyanate, and allowed to react in the presence of a blowing agent, such as water, to form a foamed polymeric material. A particularly suitable blowing agent comprises a mixtu...

A composite tip-off type cap, and closure sealing means, operatively connected to a container for closure thereof and sealing of the contents therein. The composite cap includes a narrow elongated exterior top portion, a peripherally enlarged open bottom skirt at the bottom thereof, and a container access opening closure seal means, operatively disposed within the skirt and operatively integrated ...

A process is provided for making a solution of cellulose in an amine oxide. In accordance with one aspect of the invention, a solid precursor of a solution of cellulose in a tertiary amine oxide in the form of a chip or the like which has been prepared by suspending cellulose in a mixture containing a tertiary amine oxide and water is heated in the barrel of an extruder to dissolve the cellulose, ...

This invention relates to a braking apparatus wherein the heat absorbing mass of a rotating braked element, such as a vehicle wheel, is increased by securing to, such as each wheel of the vehicle, a brake disc of such size as to constitute a heat sink capable of absorbing the heat generated by a pair of brake shoes when in braking engagement therewith, the periphery of the wheel forming a braking ...

A process for the preparation of a particulate gel, which process comprises (i) contacting the gel with a swelling agent and (ii) subjecting the swollen gel to shear stress such that the swollen gel is comminuted to particles.

A prosthesis (2) for total or partial replacement of an elbow comprising: (i) a humeral component (4) to replace the trochlea bone and to partially replace the capitulum bone of the humerus (6), the component (4) being adapted to be fixed to the humerus (6) and having a concave surface (16 -) in the coronal plane, the surface of the component (4) being convex (20 - Fig. 4) in the sagittal plane at...

Gases can be introduced in a finely divided form into molten metal using a jet-mixing facility which is designed on the Venturi principle and is made of a suitable refractory material. Melt flow rates of 2-100 m/s are measured in the cylindrical center piece of this mixer, and gas is sucked in at a reduced pressure of 0.05 to 0.9 bar. By means of this process an injector efficiency (ratio of throu...

PCT No. PCT/FR82/00005 Sec. 371 Date Sep. 13, 1982 Sec. 102(e) Date Sep. 13, 1982 PCT Filed Jan. 13, 1982 PCT Pub. No. WO82/02405 PCT Pub. Date Jul. 22, 1982.The method consists in subjecting a natural alcoholic liquid to three successive steps of non denaturating physical fractionation; the first step is a molecular utltrafiltration under low pressure through a semi-permeable ultra-filter the spl...

PURPOSE:To improve accuracy of concentric assembling of plural elements to be positioned by putting a positioning pin in the center hole of a reference shaft in such a manner that the expanded part of the pin end portion is positioned in the middle of an adjacent bearing. CONSTITUTION:A positioning pin 38 for positioning a reference shaft 25 is fixed on a block 33 capable of moving in the directio...

A dual shell rotational blending apparatus which is formed by two hollow cylindrical leg sections joined at one end to form a closed apex portion. One cylindrical leg section has a mean length greater than the other leg section such that as the unit is rotated and the apex portion reaches the uppermost position, the contents therein separate in unequal portions. The separation of the contents in u...

Disclosed is a new class of antitumor glycoside antibiotics of the formula (IA): (IA) wherein R is hydrogen or hydroxy; and X is These compounds are prepared, using novel intermediates, by condensing the appropriate aglycone and amino-deoxy sugar to form the alpha -glycosidic linkage.

The novel C8 modified oleandomycin compounds and the processes for their preparation are disclosed.

2'-N-Acyl and alkyl fortimicin B and fortimicin B derivatives, 4,2'-N,N'-diacyl and dialkyl derivatives, 4-N-acyl-2'-N-alkyl and 4-N-alkyl-2'-N-acyl fortimicin B derivatives represented by the formula wherein: R is acyl, aminoacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, hydroxyacyl, an amino acid residue, loweralkyl, aminoloweralkyl, hydrox...

A compound of the formula: wherein R1 is lower alkoxy, lower alkoxy-methoxy or 2-hydroxy-ethoxy, R2 is aldo-pentofuranosyl, aldo-pentopyranosyl, aldohexopyranosyl or O-aldo-hexopyranosyl-(1->4)-aldo-hexopyranosyl, and A is straight or branched alkylene of one to four carbon atoms, said alkylene being substituted with from 0 to at least one lower alkoxy group, is disclosed. A new interm...