baber/WOPTO huggingface dataset:
Patent FR-2270172-A1 (FR)
Title: Endless belt bulk material conveyor - has tubular upper and lower runs formed by interlocking the edges
IPC: B65G15/40
Filed: 1974-05-08
Abstract: A flexible belt encloses the product and therfore allows a greater lift angle for the conveyor than normal. The conveyor consists of an endless belt passing over two rollers, one of which is motor driven. The belt is flexible and is guided along the edges so as to close over the product being handled along the upper and lower runs. The increased friction on the product prevents slipping back and allows a steeper conveyor. The endless belt has teeth along its edges so that the edges lock together along the upper and lower runs.
Patent FR-2277331-A1 (FR)
Title: Liquid doser, mixer and distributor - has tank divided into compartments with calibrated orifice and outlet tap
Inventor: ARCUCCI RENE
IPC: B67D3/00
Filed: 1974-07-05
Abstract: Device comprises a tank inside which is one or more partitions to divide the internal volume into two or more compartments. One of these compartments is linked to a liquid distribution tap. The partition has a calibrated orifice of net cross-section less than that of the pipe which connects the compartment to the tap. For mixing and distributing two or more liquids, the above device is coupled with a container holding the second liquid and a distributor tap with two inputs, are connected to the device and the other to the container.
Patent FR-2299702-A1 (FR)
Title: Molten fuel salt mixture reactor - with protective structure and cooling for reactor vessel wall
Inventor: VENTRE EDMOND
IPC: G21C11/08
Filed: 1974-10-24
Abstract: Confinement of molten salt for a reactor i.e. contg. a fissionable element salt, by creating a transition zone between the liquid and solid phases of the salt - mixture in the vicinity of the metal reactor vessel and cooling the external wall of this below the salt mixture solidification temperature but above the temperature at which there is a risk of dissociation. Advantageously, the temperature of the solid phase is kept at 300 degrees-400 degrees C by recovering heat dissipated by the outer wall of the reactor vessel. Enables conventional metals and/or non-oxidising alloys to be used without the risk of chemical attack of or unacceptable thermal stresses in the pressure vessel.
Patent FR-2292371-A1 (FR)
Title: HF white noise generator - has two LF zener duide systems as noise generators for noise signals which are combined with sine wave signal after relative phase shift
Inventor: SORBA ANTOINE
IPC: H03B29/00
Filed: 1974-11-22
Abstract: The HF white noise generator consists of two generators (1, 2) producing LF white noise and a pilot generator (3) producing a sinewave signal. The outputs of the pilot generator and the first noise generator are multiplied together in a first multiplier (4), and the output of the second noise generator is multiplied in a second multiplier (6) with the 90 deg. shifted (5) output of the pilot generator. The outputs of the two mixers are then added (7). The two LF noise generators each consist of a zener diode reverse biased into the zener or avalanche region by a variable resistor. The resulting white noise is then amplified using an operational amplifier.
Patent FR-2293609-A1 (FR)
Title: Double stage cryogenic trap - with screen under vessel cooled by vapour from vessel escaping through coil
IPC: F04B37/08
Filed: 1974-12-06
Abstract: A double state cryogenic trap located in a duct through which a gas is pumped, has a vessel (22) into which cryogenic liquid such as liquid nitrogen is fed through a connection (24) at the top, with a small bore outlet tube (30) also positioned near the top which passes down between the side of the vessel and the inside of the duct (10), then forms a coil (28) around a horizontal screen (26) under the base of the vessel (22), with a return portion travelling upwards parallel to the beginning of the tube, to discharge to atmosphere through a hole (32) in the duct, above the level of the vessel. The vapour given off by the fluid inside the vessel escapes through the tube and coil thus cooling the screen.
Patent FR-2298527-A1 (FR)
Title: Methylglyoxal acetals useful as intermediates for antibacterials - produced by reacting dihydroxyacetone with an alkanol in presence of cation exchange resin catalyst
Inventor: GUPTA SHYAM KIRTI
IPC: C07C45/71
Filed: 1975-01-24
Abstract: Cpds. of formula: CH3COCH(OR)2 (where R = 1-4C alkyl) are produced by reacting dihydroxyacetone with at least 1 equiv. of a 1-4C alkanol at 50-150 pref. 60-120 degrees in the presence of a cation exchange resin obtd. from an acid of pK 1, pref. a sulphonated polystyrene or sulphonate styrene-divinylbenzene copolymer.
Patent FR-2322362-A1 (FR)
Title: Electronic calibrated weighing balance - has electro:magnetically controlled weighing arm with voltage ramp excitation and comparators
IPC: G01G7/02
Filed: 1975-08-28
Abstract: An electronic calibrated weighing balance is used to calibrate or to determine weights. the balance has a weighing arm (23) pivoted about a spindle (24). An electromagnet (11) and core (25) are used to applied a force to counterbalance the weight to be determined. the electromagnet (11) is supplied with a voltage ramp. At counterbalance, a set of contacts (13) are closed and the voltage to the electromagnet (11) is cut off. The voltage at cut-off is applied to comparators calibrated according to weight. the voltage ram is obtained by progressively charging a capacitor and exciting an amplifier. a NAND gate is used to establish the start and the end of weighing. the comparators comprise operational amplifiers. Weighing can be carried out in half a second and to within 2 grammes.
Patent FR-2327436-A1 (FR)
Title: Self-locking clip for joining flexible pipes - has rough surfaces on overlapping straps to prevent movement under tightening load
IPC: F16B2/08
Filed: 1975-10-08
Abstract: The self-locking clip consists of two semi-circular straps (1,2). One end of each strap is bent at right angles to form a lug which is provided with a hole for the tensioning screw (3). The other ends of the straps are provided with metal loops (4,5) through which the end of the opposite strap is threaded so that the straps overlap over a length (6). The strap (2) is provided with roughened surface or a series of parallel ridges. When the screw (3) is tightened, the strap (2) is pressed onto the strap (1) and both straps are pressed against the pipe surface. The roughened surface of the strap (2) prevents it slipping over the strap (1).
Patent FR-2327816-A1 (FR)
Title: Fluid surface protection covering - comprises disc shaped floating bodies with paraboloidal or ellipsoidal cross sections perpendicular to fluid surface
IPC: B01J19/16
Filed: 1975-10-17
Abstract: Proposed is a protective covering for the surface of a liquid. The covering is formed from several round disc-shaped floating bodies. Each disc (12, 13) has a paraboloidal or an ellipsoidal cross-section in a direction perpendicular to the fluid surface and that the material and the weight of the bodies are selected in relation to the buoyancy arising from the particular specific gravity of the fluid so that the floating body (12, 13) is submerged into the fluid (11) to the point of its greatest circumference.
Patent FR-2292574-A1 (FR)
Title: Rapidly cooling extruded tubing - by injecting liquid nitrogen into the tubing (BE280576)
IPC: B29C48/90
Filed: 1975-11-24
Abstract: Plastic tubing is produced in a cooled die, in which an overpressure is applied to the interior of the tubing where an extremely cold medium is injected which evaporates or sublimes. The cooling method produces a higher output rate with low-cost equipment. The extruder nozzle and a central thermally insulated bore for liquid nitrogen are fed from a supply source. This coolant is injected from a nozzle into the tubing so that it evaporates before even reaching the tube wall. A plug, located at about the end of the die, is connected to the nozzle e.g. by a chain and acts as a pressure regulator, the nitrogen escaping via the outlet in the plug. The die itself is water-cooled.
Patent FR-2305927-A1 (FR)
Title: Mechanically vibrated arm for shaking tree boughs - re-designed self-opening clamp for firmer grip on various boughs
IPC: A01D46/06
Filed: 1975-11-28
Abstract: A branch shaking machine used in the coffee bean harvest has a long arm (1) which is vibrated longitudinally by a motor with a centrifugal clutch and a twist grip throttle (16). It is held on a shoulder sling (17) and the recoil of its vibration is taken on a pad (18) resting on the operator's hip or shoulder, and has two operating handles (15, 16). To improve the clamp (2) which holds the bough, this has a soft covering on both jaws. One jaw is fixed to the long arm (1), which is hollow, and the other (2) to a rod which passes down inside the long arm, attached to a pivoted (27) operating handle (3) by a spring (5). A compression spring opens the jaws of the clamp when the handle moves to the 'release' position.
Patent FR-2355905-A1 (FR)
Title: Procede de concentration par flottation de minerais a granulometrie fine ou oxydes
Inventor: BARBERY GILLES
IPC: B03D1/004
Filed: 1975-12-15
Abstract: L'invention concerne la concentration par flottation de minerais à granulométrie fine et/ou oxydés. L'invention consiste à utiliser, comme réactifs de flottation dans un procédé de flottation classique, un agent chélatant choisi parmi des composés o-hydroxyazoïques. On peut ainsi valoriser des minerais à granulométrie fine et/ou des minerais oxydés, notamment des minerais oxydés de cuivre, de plomb ou de zinc à gangue carbonatée et/ou silicatée. Application : valorisation des minerais difficiles à faire flotter de façon classique.
Patent FR-2334866-A1 (FR)
Title: Junction piece for tubular structure - is metal or plastics block drilled to receive tubes at right angles held by grub screws
IPC: F16B7/04
Filed: 1975-12-11
Abstract: The junction consists of a metal or plastics cylinder or block which is drilled through from top to bottom (1) to allow the passge of one tube or two tubes butting up to each other. Alternatively a tube may be butted into the junction with a plug being fitted at the other end. A second tube (2) may be fitted at right angles to the first, missing the first so as to go straight through. A third tube (3) is at right angles to the other two and misses them both. Grub screws locate the tubes in the junction.
Patent FR-2335180-A1 (FR)
Title: Combined chair and air conditioning vent - has hollow support connecting to air conditioning and occupied seat pivots to open valve emitting air
IPC: A47C7/74
Filed: 1975-12-18
Abstract: The combined chair and ventilator is a fixture and comprises a seat (3) and back rest (2) which are built onto a low hollow column (5). The column communicates with a condition-air distribution system (S), and occupation of the seat causes an emission of conditioned air into the room. The use of the chairs in e.g. a lecture theatre obtains automatic regulation of the air conditioning to a level which is directly related to the number of persons in the room. The flow of conditioned air into the column may be controlled by an axially displaceable cone plug (14) in an inversely flared opening (9). The plug is moved off its seat by a rod (10) which is in turn displaced by a downward pivoting of the chair seat (3). A coil spring (16) may be provided to hold the plug (14) on its seat (9) when the chair is unoccupied, and perforations (11) in the column walls distribute the conditioned air.
Patent FR-2338487-A1 (FR)
Title: Measuring rheological characteristics of oils - by aspiration through a filter or capillary at different temps.
Inventor: CIAIS ANDRE
IPC: G01N25/04
Filed: 1976-01-15
Abstract: The rheological characteristics of liq. petroleum prods. are measured by aspirating a given vol. of the liq. through a filter or capillary under fixed suction and measuring the aspiration time. The temp. is lowered in steps and the aspiration time is measured at each temp. The data obtd. are continuously plotted to give a curve of aspiration time verous temp. Filter method can be used to measure the cloud point and the cold filter plugging point. Capillary method can be used to measure the kinematic viscosity, the viscosity index and the 'limiting temp. of laminar flow', i.e. the temp. at which the viscosity ceases to increase linearly with decreasing temp.
Patent FR-2341098-A1 (FR)
Title: Composite internal lamp reflector - has annular components with central openings and mounting segments bent downwards
IPC: F21V7/10
Filed: 1976-02-16
Abstract: The internal lamp reflector is particularly for a lamp with non-opaque casing, and comprises a stack of components (1) with reflecting surfaces and generally of annular shape, assembled on a common axis so as to leave between them openings for passage of the light. The components each have a central opening (2), and are initially flat. The external segments are bent down (6) through an angle, the edges of the segments being fixed at (4 & 5) to the component below. The outer periphery of each component can be initially circular, while the central opening is polygonal, several segments being then bent downwards.
Patent FR-2301087-A1 (FR)
Title: Extraction type ion generator - has anode and cathode to produce equipotential surface and grid with opening for ionic current
IPC: H01J27/04
Filed: 1976-02-17
Abstract: An extraction-type ion generator, has a cylindrical anode (2) and an annular cathode (3) around the anode (2). It also has a cylindrical grid (16) around the anode (2) and the cathode (3). The grid (16) has openings for the supports of the anode (2) and the cathode (3), and also an opening (18) for the ionic current generated. An extraction electrode (12) is located over the opening (18) of the grid (16). An equipotential surface (14) is produced. The electrons emitted by the cathode (3) and crossing the anodic space (13) are not lost and are reflected by the equipotential surface (14). The generator is suitable for use in vacuum gauge systems and in spectroscopes.
Patent FR-2301736-A1 (FR)
Title: Hydraulic damper for angular oscillations - avoids use of dynamic seals by using permanent magnets to transmit motion
IPC: F16F15/14
Filed: 1976-02-18
Abstract: The damper is intended for controlling the operation of earth-moving machines such as graders in order to ensure the correct height and angle of the grading blades with respect to the ground. The damper housing (11) has a central shaft (12) running in bearings (15, 38). The end bearing (15) is mounted in the end cover (13) which carries a permanent magnet (19). The middle portion of the shaft (12) carries a damping mass (22) mounted on bearings (23) and enclosed in a housing (21) with a small radial clearance. The housing (21) is filled with hydraulic fluid which damps the oscillations of the mass (22) caused by relative motion between shaft (12) and the main housing (11).
Patent FR-2305458-A1 (FR)
Title: Vinyl halide polymer purificn from monomer - by exposing water and polymer mixt to microwave irradiation (BE270976)
Inventor: PARK ANTHONY JOHN
IPC: C08F6/00
Filed: 1976-03-25
Abstract: Vinyl halide suspension polymer is purified from residual monomer by subjecting a mixt. of water and vinyl halide polymer in which wt. ratio water:polymer is >0.2:1 (pref. 0.25:1 to >0.6:1) to microwave irradiation. Process is applied esp. to unseparated mixts. of water and polymer, as discharged from polymerisation reactors. Health hazards w.r.t. monomer release during centrifugeing or filtration are prevented. Time and intensity of irradiation can be adjusted w.r.t. desired water content in polymer.
Patent FR-2349087-A1 (FR)
Title: Ventilator or chimney cowl - has curved guide vanes to deflect wind upwards to extract air or smoke
IPC: F23L17/00
Filed: 1976-04-21
Abstract: The ventilator or chimney cowl is built up from a number of identical rings (11) each ring (11) has short cylindrical section (12) joined to a half torus (14). The rings surround the duct or chimney pot and are so arranged that the lowest part of the torus (14) lies in the plane of the edge (13) of the ring immediately below. The wind blowing from any direction is deflected upward in the annulus between the rings and the chimney pot. This upward flow of air then sucks smoke or stale air out of the end of the duct or chimney. The rings (11) are supported on tongues projecting from the bracket (16) which is fixed to the mounting stirrup (22) by the screw (26).
Patent FR-2351851-A1 (FR)
Title: Crank drive for bicycle chain - has gearwheel with two curved parts connected by straight parts for improved pedalling action
IPC: B62M9/08
Filed: 1976-05-17
Abstract: A cycle gear arrangement has a main gearwheel which is attached in the conventional manner to the two cranks, with a set of teeth around it, driving the chain. This gearwheel is especially shaped to improve the pedalling action of the cyclist. The gearwheel has two diametrally opposite curved portions connected by two parallel straight portions. The two curved portions form part of the same circle with its centre being the centre of rotation of the pedals. The straight parts are chords of the circle.
Patent FR-2354857-A1 (FR)
Title: Pivoting jib for handling sheet steel - has cranked pivoting jack lever with adjustable roller running in jib slot
IPC: B21J13/08
Filed: 1976-06-16
Abstract: The mechanical handling arm may handle sheet steel during automobile mfr. A pivoting jib (24) has e.g. suction cups, and is adjustable to suit different machines. The jib pivots about a primary axis (16) under the action of a jack (12) acting on a pivoting 'L' shaped control lever (13). The fulcrum (14) of the control lever is fixed and the other end may include a demountable roller (18) which displaces along a longitudinal slot (19) in the jib. The position of the roller (18) is adjustable by locating the axle in differnet holes (20) in the control lever (13). The centres of the alternative holes (22) may centre on the axis of the guidage slot (19) and the control lever (13) may be of a forked construction.
Patent FR-2314894-A1 (FR)
Title: Aluminium fluoride mfr. from inexpensive clays - by leaching clay with hot hydrofluorosilicic acid and filtering off silica
Inventor: DAVIES HORACE LLOYD
IPC: C01B33/18
Filed: 1976-06-17
Abstract: An aluminium silicate is reacted with hydrofluorosilicic acid, the insol. SiO2 filtered off, and Alf3 crystallised fro the filtrate. The aluminium silicate is pref. clay schist or slate, fly ash or coal ash, esp. schist milled to British Standard 100 mesh. The reaction temp. is pref. 60-150. (95) degrees C., with press. between atmospheric and 800 kilopascales. The filtrate contg. AlF3 may be conc. before crystallisation which converts the soluble alpha AlF3 to insol. beta AlF3. Materials contg. Al such Al2O3-2SiO2-2H2O, china clay, or feldspar etc. are inexpensive. The object of the invention is to obtain AlF3 from such materials.
Patent FR-2366722-A1 (FR)
Title: Flexible cable driven visual display - provides remote indication of status of one or more switches using disc with cam groove engaging rotating head
Inventor: BAULIER HENRY
IPC: H02B15/02
Filed: 1976-07-28
Abstract: A visual arrangement is used to provide an overall display to a remote operator of the setting of several mechanically operated controls such as contactors. The drive to the display allows it to be situated at some convenient point and being purely mechanical does not require special power or illumination sources. The contactor shaft has a fixed disc (6) with a single slot (7) in its perimeter. Bearing on the perimeter is a rotatable head (5) whose position is altered by the head being trapped momentarily in the slot as the disc rotates through some small angle. The position or angle of the head is transmitted via a flexible drive to a display board the drive end-face carrying some form of indicator such as an engraved arrow.
Patent FR-2323184-A1 (FR)
Title: Test sample container manipulation system - has magazine containing test tubes transported to given position using belt conveyor system
Inventor: LITZ FRANK A
IPC: B65G1/10
Filed: 1976-07-27
Abstract: The test sample container manipulation system transports and presents several contains at a test position. The system has several container supports and a magazine designed to hold sevral of the container supports. It has a first conveyor system which displaces the magazine along a first path. A second conveyor system displaces the container supports along a second path which crosses the first in a predetermined position. The second conveyor extends up to the test position the conveyors function being to position; in incremental steps the magazine in the test position. A transfer system transfers, at the test position, the container supports inside the magazine to the second conveyor.
Patent FR-2361921-A1 (FR)
Title: Safety release binding for ski - has sole plate with front and rear release and additional central rubber stop giving under side pressure
IPC: A63C9/085
Filed: 1976-08-20
Abstract: The ski safety release bindings comprise a sole plate secured to the ski boot by clips at toe and heel. This sole plate is held on the ski by front and rear locators, the latter recessed for a spring loaded rongue. Between these is a stop (7), positioned approximately central. This comprises a foot (17) on the ski, holding a threaded pin (19). The pin has a large flat head (19a) and locates a rubber bush (18) enclosed within a cap (20). The stop fits into an elongated slot in the sole plate and gives positive location.
Patent FR-2364143-A1 (FR)
Title: Exterior rear view driving mirror - has dipping mirror held by spring in both positions and dipped by relay operated electromagnet
IPC: B60R1/08
Filed: 1976-09-08
Abstract: A fixed glass (4), and dipping mirro (1) are held in both positions by a spring (3) and tilted by a double-acting electromagnet (2) supplied with current by two relays (6) connected to a three-position switch (7) mounted on the vehicle dashboard. The dipping mirror is mounted on a support (8) pivoted at its lower part on the casing (9) of the rear-view mirror assembly. The central part of the support is pivoted tot he rod (11) of the electromagnet. The electromagnet comprises two solenoids oppositely acting. The casing is provided with a stop (13) limiting rearward tilting of the mirror. The glass is provided on its inner face with a joint (12) serving as a stop for the mirror in its daytime position and sealing the casing.
Patent FR-2367131-A1 (FR)
Title: Dobby loom-shed formation mechanism - with improved attachment device between the lifting levers and the wires connected to the heald frame
IPC: D03C1/14
Filed: 1976-10-11
Abstract: The attachment is provided between the lifting lever and the wires connected to the corresponding heald frame on a dobby or other loom. A hook has one end harnessed to the lever, whilst the other end fits into a clasp fastening which ensures that the wires are firmly fixed. The clasp fastening has two sides between which the wires are engaged, by folding the wires back around a suitably shaped central boss. A screw mechanism ensures the retention of the wire by locking it. By locking each wire with a screw, no fitting is required, and the unsheathing of the wire is not needes so that it remains completely protected against rust. The length of the wire can be adjusted easily to take up slack.