Abstract: A process for isolating an aromatic coffee fraction from an aqueous medium containing said fraction, which comprises contacting the aqueous medium with an organic solvent which is an azeotropic mixture capable of boiling at a temperature below about 50.degree. C of (a) at least one non-aromatic hydrocarbon and (b) at least one non-aromatic halogenated hydrocarbon or an ether and recovering a solvent phase containing the aromatic fraction. This is a continuation of application Ser. No. 623,055, filed Oct. 16, 1975, is now abandoned.

Abstract: The apparatus for drafting in accurate conic perspective essentially provs for the top edge of a drawing board a movable cursor integral by means of an arm with a pivot and carrying at the other end a scale G3. Another scale G1 is slidably mounted on a guide member pivoting about a pivot. The apparatus further comprises another scale G2 whose zero maker coincides with the pivot. The apparatus serves the purpose of determining automatically on scale G3, by means of readings and bearings taken on the various scales, the position of the point representing in perspective a point of the dimensioned plan view situated in the lefthand portion of the apparatus.

Abstract: A reactive gaseous mixture which reacts in a localized heating zone to form a glass deposit on the inner wall of a tube is made to flow along the tube, and in the heating zone it is channelled around a cylindrical element which occupies much of the bore of the tube. The glass deposit is used for making glass fibres for telecommunications.

Abstract: A braking correction device of the type having a housing in which is defined a bore with a stepped piston slidably mounted therein so as to divide the bore into an inlet and an outlet chambers respectively communicating with the master cylinder and the brake actuators. The stepped piston has a head with a peripheral groove in which an annular ring is mounted with axial and radial clearance. The ring cooperates with the bore surface to control communication between the inlet and outlet chambers as a function of the position of the stepped piston. The bore surface has a first part forming a fluid tight side wall and a second part forming a side wall of porous material. The second part is adjacent the outlet chamber. A radial clearance is provided between the piston head and the bore surface of porous material for by-passing the sleeve of porous material to ensure the unihibited hydraulic flow between the inlet and outlet chamber is obtained during the non proportioning phase.

Abstract: The invention relates to a hydraulic booster of the closed-center type and comprising a housing containing a working chamber, an actuating piston slidable in the working chamber, a set of a high-pressure valve and an exhaust valve of the ball valve type controlling fluid connections between an accumulator, the working chamber and an exhaust orifice. The high-pressure valve is controlled by a tappet including a sleeve having a central passage therein communicating with the working chamber and the exhaust orifice. The exhaust valve controls the fluid flow through the central passage. Both valves are actuated by movement of a sliding block adapted to engage the exhaust valve member.

Abstract: This invention concerns the production of very deep boreholes. A rotary drilling tool is suspended at one end of a very long line of supporting elements such as a cable. During at least the entire duration of the drilling operation, the borehole is filled at least partly with at least one substance which remains in a liquid state and has a density greater than the mean density of the drilled ground strata. Thus any infiltrations in the borehole and the drilling debris move naturally upwards to the free surface of the liquid substance filling the borehole.

Abstract: A new process utilizing certain novel intermediates for the preparation of 1-diphenylmethyl-4-(6-methyl-2-pyridylmethyleneamino)piperazine is described herein. The process utilizes readily available starting material and has the distinct advantage of having no N-nitroso intermediate in its procedure.

Abstract: A photochromic material comprising a transparent polymer material having a block copolymer base with a structure wherein blocks of a first polymer form a dispersed phase in a matrix phase essentially composed of blocks of a second polymer, and an organic photochromic substance uniformly distributed in said polymer material.

Abstract: An industrial type friction brake having a pair of brake shoes engageable with opposite sides of a brake drum. The brake has levers and pivots arranged to automatically cause the brake shoes to simultaneously engage the brake drum and maintain the distance the brake shoes move constant to compensate for misalignment of the brake shoes and wear of the brake linings. The components of the brake are arranged so that all adjustable components are located at the top of the brake and the magnet coil or brake shoes may be removed for replacement purposes without disturbing any of the levers of the brake. Additionally, the brake is provided wth means to minimize the possibility of injury to persons during replacement of the brake drum and includes an inexpensive manually operable means to manually release the brake shoes from their engagement with the brake drum.

Abstract: The following specification describes a meter receptacle assembly utilizing an outer collar to overlap the meter flange base and latched to the cabinet in which the meter is mounted by interlocked tabs and a sealing wire. A trim or cover plate for the cabinet in turn overlaps a flange wall on the collar and is locked to the cabinet to prevent removal of the collar and unauthorized bypass of the meter. A cutout in the cover plate provides access and visibility for the sealing wire. Authorized bypass connections for the meter to permit its removal without disturbing service are facilitated by horn terminals whose ends project beyond the meter periphery to permit facile connections thereto.

Abstract: The present invention encompasses compounds of the formula ##STR1## AND THE PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF WHEREIN R represents hydrogen, alkanoyl having 1 to 7 carbon atoms, or lower alkyl having 1 to 7 carbon atoms; X and Y represent alkylene having 1 to 3 carbon atoms and Ar, Ar', and Ar" represent phenyl, halosubstituted phenyl, lower alkyl substituted phenyl wherein the lower alkyl contains 1 to 4 carbon atoms; and Ar'" represents phenyl, pyridyl, lower alkyl substituted phenyl wherein the lower alkyl contains 1 to 4 carbon atoms or halosubstituted phenyl. Compounds of the present invention are prepared by reaction of triarylalkanoyl halide with appropriately substituted piperidine followed by subsequent reduction of the resulting amide. Compounds of the present invention are potent antidiarrheal compounds with unexpected separation of antidiarrheal and central nervous system properties.

Abstract: An inertial sensor device for automatically operating warning means in an automotive vehicle is provided which comprises an inertia block slidably mounted in tubular guide means and sensitive to acceleration and deceleration of the vehicle in two opposite predetermined directions relative to the axis of the vehicle, the inertia block being normally biased by two springs oppositely acting on said block to prevent a striker from moving into a striking position until inertial forces in one or the other of said directions are developed sufficiently to move the inertia block, against the action of said springs, a sufficient distance to release the striker for operating a utilization device.

Abstract: An automatic cue ball separating device is described for billiard tables to separate a metallic containing cue ball from nonmetallic object balls. The cue ball separator includes an induction sensing coil that circumscribes the path of the balls along a return run with the balls passing through an aperture about which the coil loops are formed. The aperture is oblong with the coil mounted at the acute angle of less than 90.degree. with respect to the path of the balls. The cue ball separating device includes an oscillating voltage means that is impedance matched with the induction sensing coil. When the metallic cue ball passes through the aperture, the oscillating electric field is disrupted causing the coil to change impedance. Such inductance change is detected by an electrical circuit which in turn operates a solenoid that engages the cue ball and drives the cue ball from the single file into a cue ball return channel to separate the cue ball from the object balls.

Abstract: A device for measuring the adhesion forces in a closure seal of a container, the seal being formed by a membrane adhering to the neck of a container and by a pad retained at the base of the cover of the container, adhering together, wherein it comprises a plunger with an adhesive and equipped with lateral guides and disposed in the recess of a shoe of which the sides form inclined planes adapted to the guides of the plunger and of which the base is provided with means for retaining the pad, the shoe being connected to a dynamometer.

Abstract: A step-by-step controlled servomechanism of the type comprising a drive element movable provided with a plurality of receiver ports, and a fixed distributor to supply said receiver ports and having a number of transmitter ports capable of being connected, in pairs, respectively to the low pressure and to the high pressure, a fixed manifold having a plurality of manifold ports capable of communicating with the chamber of the drive element, all the receiver ports being capable of being made to open in succession into one of said manifold ports, selecting means capable of connecting, in succession by permutation and simultaneously, at least one pair of transmitter ports to the high pressure and to the low pressure, respectively, and at least one manifold port to the chamber of the drive element.

Abstract: The invention provides novel esters of 1-(p-hydroxyphenyl)-2-(1'-methyl-2'-phenoxyethylamino)-1-propanol having better properties as vascular dilatators, than the corresponding 1-(p-hydroxyphenyl)-2-(1'-methyl-2-phenoxyethylamino)-1-propanol.

Abstract: Spring 1 having principal undulations 2 inside which are formed windows 5 for the passage of cams 10, and secondary undulations 4. The cams are wedged between the edges 6 and 7 of these windows. The swinging of the cams is caused by the action of the swinging tongue 15 having a flat portion 17. An improvement in the synchronization of movement of the cams and a reduction in the wear of the device is obtained.

Abstract: There is provided a one-way data transmission system wherein a transmitter station transmits in the form of data packs data from a plurality of channels, the said packs being time multiplexed.One channel amongst the plurality of channels is allotted to transmitting date information. In the receiver equipments, the dead memory stores not only the channel code, but also a subscription period information which permits to validate the channel code depending on the date information received from the date channel. Automatic dead-memory distributors are provided which receive data from a control channel transmitted by the system, like other channels. The system is compatible with television systems.

Abstract: An improved process for cleaving peptides bound to a polymer by way of a benzylester linkage during solid phase peptide synthesis, the improvement comprising hydrogenolysis of said linkage by catalytic hydrogenation using a palladium (II) salt with a weak acid anion as the catalyst.

Abstract: A cable pay-out drive is positioned between the winch drum and a clam shell supported by the cable. To lower the clam shell, the pay-out drive pulls cable from the drum under constant tension. To raise the clam shell, the winch drum retrieves cable, again with the cable under constant tension between the drum and pay-out drive. One sheave of the pay-out drive is mounted for movement in response to the load of the clam shell on the cable and that sheave is associated with a load cell which translates the cable load into a gauge reading so that the magnitude of the load being raised is continuously monitored from within the crane cab.