A fixed part of a clutch (1) comprises a magnet body (2), a permanent magnet (3), a coil of an electromagnet (5) and a nonmagnetic insert (4). An armature (19) comprises an armature disc (12) which is made up of two concentric rings and is connected firmly in terms of rotation to a driver (18) via an annular spring (11). Between the fixed clutch part (2, 3, 4, 5) and the armature (19) there is an ...

An apparatus for breaking coal or other mineral matter from a bed thereof which comprises a string filling a bore hole which can rise steeply in this bed. The string consists of alternating breaking units and connecting pipes each braking unit having a differential piston displaced solely by the action of air pressure so that breaking slots are unblocked to discharge compressed air built up in the...

Apparatus for delivering cryogenic liquid to a heat exchanger wherein said liquid is vaporized for its cooling effect comprising a return conduit for conveying from a heat exchanger to a separator vessel spent fluid including some vapor, the return conduit discharging at its upper end into the portion of the vessel holding vapor, a return port for receiving spent fluid from an exchanger, a bypass ...

PURPOSE:To remove positional displacement in flip-chip joining by forming an indentation of solder to one part of the pad of the substate, inserting and mounting the bump of a chip in the indentation and joining solder and the bump through heating. CONSTITUTION:An indentation 6 is formed to the spare solder 5 of the pad 4 of the substrate P. When loading the leadless chip carrier C, the bump 1 is ...

PURPOSE:To automate a sealing by a resin by previously printing an oil agent for stopping the flow of the resin to a necessary section at the same time as an epoxy substrate package for a timepiece is processed and formed, mounting a semiconductor pellet while being positioned in the necessary section and bonding the pellet when the package is processed and formed. CONSTITUTION:A recessed section ...

PURPOSE:To facilitate a mounting to the same signal pattern while simplifying repair work such as the exchange of defectives, and to increase mounting density by separately mounting the LSIs, in which terminals are arranged in the relationship of a mirror inversion, to the surface and back of a surface board. CONSTITUTION:LSI Chips 2, 3, etc. are directly bonded with the surface and back of a subs...

By means of a conveying surface having depressions arranged in a pattern, a plastic is coated onto a heated substrate (2) by the intaglio process by means of a device for applying the synthetic resin powder onto the conveying surface which has a temperature at which the flowability of the powder is still preserved, so that it is prevented from adhering to the conveying surface. A heated substrate ...

High-pressure or, if appropriate, ultra-high molecular weight low- pressure polyethylene is shaped into films and printed in the amorphous state at 150 - 300 DEG C. Extrudable material can be continuously extruded and immediately thereafter be brought into contact with a strip-shaped transfer paper, for example on a three-roll mill, and be separated from said transfer paper after transfer of the p...

3-Acylamino-5-[4(or 3)-pyridinyl]-2(1H)-pyridinones or pharmaceutically-acceptable acid-addition salts thereof useful as cardiotonic agents are prepared by reacting the corresponding 3-amino compound with an acylating agent providing acyl, where acyl is 2-acetoxypropanoyl, acetoacetyl or acetoxyacetyl. Cardiotonic compositions and method for increasing cardiac contractility using said 3-acylamino ...

PURPOSE:To provide a compsn. for treating metallic surfaces which can provide high corrosion resistance, adhesion and suitability for undercoating for painting on the metallic surface, by compounding specific amts. of hydrolyzate of alkyl silicate, hydrolyzate of a dialkoxy silane compd., an ionic resin and a chromium compd. CONSTITUTION:A compsn. for treating metallic surfaces contains 0.5-250g h...

PURPOSE:To provide a compsn. for treating metallic surfaces which can provide high corrosion resistance, adhesion and suitability for undercoating for painting on the metallic surface by compounding specific amts. of water dispersible silica, hydrolyzate of a dialkoxy silane compd., an ionic resin and a chromium compd. CONSTITUTION:A compsn. for treating metallic surfaces contains 0.5-250g water d...

Novel compounds of the formula wherein R is H or CH3, a process for their preparation, and their use as intermediates in the preparation of pharmaceutically useful compounds, e.g. substituted benzimidazoles containing a pyridine radical, i.a. omeprazole.

Hydrorefining of petroleum stocks containing asphaltenes, sulfur and nitrogen with an extruded refractory inorganic oxide catalyst support wherein said support is prepared by admixing a peptizing agent, a surfactant, and a water-insoluble particulate organic polymer having a particle size of from about 1 to about 200 microns with a powdered refractory inorganic oxide and extruding the resulting mi...

Tylosin-like macrolides modified at C-20 and C-23.

A process for converting into lighter viscosity products the heavy fractions of petroleum or other hydrocarbon containing components comprises the use of steam and catalysts, at least one of which is prepared by treating an alcoholic solution of alkali metal hydroxide with hydrogen sulphide. The bottom and top fractions from the catalytic treatment may be each subjected to catalytic treatment.