baber/WOPTO huggingface dataset:
Patent FR-2246101-A1 (FR)
Title: Transformer power supply for cardiac stimulators - uses primary coil to induce currents in secondary embedded in patient
IPC: H02J7/02
Filed: 1973-10-02
Abstract: Remote battery charging system is used where direct connection between the supply and battery is not possible as in the case of heart pacemakers. The battery positioned under the patients skin, is of a rechargeable type. The pacemaker or stimulating package contains a full-wave bridge rectifier and the secondary winding of a transformer as well as the stimulator unit and the battery. The primary is a similar winding which is placed close to the patient so as to induce ac currents in the secondary embedded in the patient, when it is connected to an ac supply.
Patent FR-2247435-A1 (FR)
Title: Simultaneous prodn. of carbonyl and epoxy cpds - by reacting olefines with peroxy cpds
IPC: C07C45/57
Filed: 1973-10-16
Abstract: Olefins (pref. olefinic products of petroleum processing) are reacted with peroxy cpds. (prepd. by ozonising olefinic cpds) having one of the following formulae (I) (R1 is each 4-24C alkyls, or aryl, aralkyl, alkylaryls, or form together -(CH2)n- with n = 3-10); (II) (R3 is a 4-24C alkyl, an aryl, aralkyl, alkylaryl or -(CH2)n-CHO with n = 3-10; and X is a 1-4C alkoxy gp. or a lower aryloxy gp), (III), (IV) (n is 3-10, x is 2-5), (V) (R4 and R5 are H or 4-24C alkyls and n = 2-5). Production of higher aldehydes and ketones along epoxy cpds. improves the economy of the process. The process is esp. suitable for simultaneous prods. of propylene oxide and higher aldehydes, which are subsequently hydrogenated to fatty alcohols. The yields are high (epoxy cpds. 70-97% aldehydes and ketones 65-90%).
Patent FR-2224099-A1 (FR)
Title: Base for synthetic tobacco - composed of carbon-contg. flexible and coherent fine fibres
IPC: A24B15/16
Filed: 1974-03-29
Abstract: The fibres, which are of 5-100 mu, are pref. crimped and are collected together in tufts or clumps, consisting of cord or yarn pieces, tow, spun fibres, felt fibre mat, comminuted fabric, etc., length of individual fibres is pref. 1-50 mm and the tufts are of 0.1-5 mm dia. and 5-50 mm. length. The fibres are pref. obtained by controlled pyrolysis of an organic polymer with >=80% carbon. the fibrous base is impregnated with volatile constituents which distil or sublime to smoke without chemical charge in use. The base can be processed on usual cigarette machinery to give products of acceptable hardness and drawing properties during smoking. Combustion products of the base are harmless, the smoke contg. mainly nitrogen, oxygen and carbon oxides.
Patent FR-2270450-A1 (FR)
Title: Gas turbine with split air flow - has low pressure turbine stage crossed by main and secondary flow mixture
IPC: F02K3/06
Filed: 1974-03-29
Abstract: Air enters the gas turbine through the inlet and passes through the low pressure compressor to an annulus where it divides into two streams. One stream passes through a duct to a high pressure compressor and then to a primary combustion chamber. The air then passes through the high pressure turbine, the blades of which are attached to a ring fixed to the tips of the high pressure compressor blades. The air then flows into a duct where it is joined by the second stream and then flows to a secondary combustion chamber and a low pressure turbine. This design improves efficiency and obviates the need for interstage blow-off valves.
Patent FR-2267472-A1 (FR)
Title: Assembly device of profiled sections and panels - uses T-bolt with conical recess locked with pointed grub screw
IPC: F16B7/04
Filed: 1974-05-30
Abstract: A panel is provided with internal ribs so spaced that a block can fit between them. The end face of the block has a tongue which fits in a dove-tail groove in a vertical end member which is to be fixed to the panel. A T-bolt has a head which can slide inside the groove in the end member. The block is placed inside the panel and held in place by a tubular member pushed through holes in the block and panel. The bolt and a spring are pushed through a hole in the block and a hole in the tubular member and then secured by a grub screw with the point engaging a conical recess in the bolt.
Patent FR-2278974-A1 (FR)
Title: Clamping for commercial vehicle tarpaulins - with L bar inserted in edge pocket and clamped against profiled support
IPC: B60J7/10
Filed: 1974-05-27
Abstract: An edge pocket (3) on the tarpaulin contains a cylindrical bar or tube (4). Supports (6) spaced along the side of the vehicle have an outward facing 'U' profile (7) at their top extremity, and the tarpaulin is hooked over the upper padded leg (8) of this so that the bar (4) located inside the 'U'. A mounting lug (13) on the support carries a screwed shaft with a screwed shaft with a cylindrical, plastic sleeved, bar (18) welded to its inner extremity. Screwing this bar against the tarpaulin pocketed bar, tensions and holds the tarpaulin against the upper profile leg. The clamp may be used to secure commercial vehicle tarpaulins.
Patent FR-2241287-A1 (FR)
Title: Circuit for heart implant pacemaker - reduced charging time of output capacitor supplying stimulation pulses
IPC: A61N1/362
Filed: 1974-08-12
Abstract: A circuit for an artificial cardiac pacemaker which supplies periodic stimulation pulses, with an output capacitor preceding the implanted electrode, emits a pulse of opposite polarity immediately after each stimulating pulse so as to discharge the capacitor rapidly, i.e. within 30 m sec. A set of alternative circuits are shown using a switching transistor arrangement to reduce the charging time of the capacitor in this way. Alternatively, the capacitor is connected to the junction point of an inductance in the H.T. supply and the output transistor. This inductance has a value between 200 and 700 mH, preferably 400 mH.
Patent FR-2244600-A1 (FR)
Title: Tool handgrip for cutting knife - has two separable gripping shells with central chamber and knife element fed in along handle
IPC: B26B1/08
Filed: 1974-08-30
Abstract: The tool has a series of positions. There are several settings for the amount of protrusion of the knife blade or the blade can be fully retracted on the handle. There is a fixture for holding the two handle shells together and the outlet for the knife blade is entirely in one shell. The holding device consists of a grub screw. The side of the first shell has a serrated edge and there is a ratchet that fits through the knife blade holding it in position.
Patent FR-2251559-A1 (FR)
Title: Mercaptobenzthiazole prodn. as aq. salt soln. - by reacting aniline, carbon disulphide and sulphur and contg. with aq. alkali soln.
IPC: D06P1/92
Filed: 1974-11-26
Abstract: Mercaptobenzthiazole (I) is obtd. as a salt in aq. soln. by (1) reacting equimolar amts. of aniline, CS2 and sulphur at >=40 bar and temps. of 220-250 degrees C, (2) contacting the reaction product with sufficient aq. alkali soln. to dissolve the (I), (3) stirring the aq. alkaline soln. with CS2, (4) allowing the mixt. to separate into aq. and CS2 layers and (5) removing the CS2 layer. The process gives good yields of (I) of high purity, useful e.g. as vulcanisation accelerator for rubbers.
Patent FR-2292587-A1 (FR)
Title: Mesh for anchoring PTFE coatings to metal pipes - for protection against mechanical or thermal shock
Inventor: REYNAERT FERNAND AIME EUGENE
IPC: B05D5/08
Filed: 1974-11-29
Abstract: Interfacial supports between a metal pipe and a protective (PTFE) sheath where the supports comprise two superimposed but mutually staggered array of thin metal mesh or netting anchored to the metal pipe and submerged in the surrounding sheath. Used esp. for pipes coated as a protection against physical or thermal shock, e.g. for sealing compressors handling noxious materials such as uranium hexafluoride. The mesh physically anchors the surface sheath, inhibiting shear or creep andenhancing heat dissipation, more effectively than surfaces prepared by roughening, e.g. shot blasting. The mesh is anchored by brazing. Use of flexible metallic netting to provide anchorage windows 1-2.5 mm across.
Patent FR-2299313-A1 (FR)
Title: Purification of insulin by gel filtration - using an alkali metal or ammonium insulin
Inventor: JACKSON RICHARD LEE
IPC: C07K14/625
Filed: 1975-02-03
Abstract: An alkali metal or ammonium insulin (I) is purified by adding to a column packed with a swollen gel having in the dry state a water regain of at least 4 wt. % and particle diameter smaller than 100 microns an aq. soln. of (I) of at least 80% purity, of concentration about 1-8% (w/v) and pH about 2. 0-3.5, to provide a column loading of about 0.8-6.7 g/1 of bed volume, and eluting the insulin from the column at about 5 degrees-30 degrees C with an aq. eluant having a pH in the same range as the insulin soln. by the present gel filtration, insulin having a higher purity than that obtained in similar prior art procedures is obtained. The product is usually subsequently converted to zinc insulin which may be made up into various pharmaceutical forms of insulin. Also the purer zinc insulin permits the prepn. of a neutral insulin which is more stable than acidic insulin; it also permits the formulation of extended action pork and beef insulin preparations without additional purification as was required in the past; further it permits the prepn. of isophane insulin using less protamine.
Patent FR-2304952-A1 (FR)
Title: Control of thickness of extruded plastic sheet - by measuring thickness and adjusting extrusion rate accordingly
Inventor: POULET JEAN-MICHEL
IPC: B29C48/92
Filed: 1975-03-20
Abstract: A plastic sheet is extruded from e.g. a screw thread extruder controlled by a main motor, and the thickness of the sheet is continuously measured by a sensor. The sensor produces an analogue output signal which is compared with max. and min values corresp. to max. and main thicknesses of the sheet. If the thickness is outside the max/min tolerances an error signal is produced in the form of a series of pulses of which the duration is a function of the value of the error signal. The error signal is used to control a servo-motor which adjusts the main motor to control the extrusion rate and so maintain the thickness of the sheet between the max/min tolerances. The thickness of the extruded sheet is automatically controlled to be uniform.
Patent FR-2315732-A1 (FR)
Title: Central burglary alarm data processing unit - uses printed circuit modules with circuits which are either normally open or normally closed
IPC: G08B25/14
Filed: 1975-06-23
Abstract: The electronic unit enables one to gather at a central point data from detection and after analysis of the data, to generate a control pulse which triggers an alarm. The unit uses printed circuit cards and possesses cards for received data analysis, a circuit fuse card, and a card for a modulated electronic siren with integrated timing. The unit has a two position "day and night" locking system. It also has a card which supports a trigger button for switching out of circuit certain analysis cards. The unit also includes a distribution and supply system. The printed circuit cards have circuitry on them which may be normally open or normally closed either of these two circuit types can be plugged into contacts carried on a master card.
Patent FR-2315119-A1 (FR)
Title: Pressure regulatior for central heating valve control - has piston which operates valve control shaft if diaphragm ruptures
Inventor: KJORGAARD KNUT
IPC: G05D16/06
Filed: 1975-06-20
Abstract: The pressure regulator is for use in a central heating system for a district, and its inlet orifice enables a minimum flow to be maintained until repairs are effected. It comprises a body (10) in which a diaphragm (11) is fixed. The diaphragm moves a shaft (12) which controls action of a valve. Pressure on the lower side of the diaphragm is counteracted by a spring (13) in a casing (14) connected to the diaphragm. A stop ring (16) on the shaft (12) limits movement of a piston (18) which moves upwards in the event of diaphragm rupture and any compressed air is released through a safety valve (22).
Patent FR-2322678-A1 (FR)
Title: Car number plate stamper - has lid hinged to rear of frame and carries male part of stamping
IPC: B44B5/00
Filed: 1975-09-03
Abstract: Each frame has one letter, and frame consists of a rectangular base slab (2) which contains the female imprint of the relevant letter. The edge of the base carries two hinge blocks (5) which are mounted on pillars that are inserted in the base. The blocks carry a hinge pin which also passes through the lid (1). The lid (1) carries the male part of the letter stamping (3). There is a clearance between the edges of the letter stampings (3, 4) to allow for the metal thickness. The hinge pillars allow the lid to move vertically so that the letter print is even.
Patent FR-2329786-A1 (FR)
Title: Automatic distillation system for textile solvents - using three stills in timed sequence
IPC: D06B9/06
Filed: 1975-10-27
Abstract: An automatic system for recovering, distilling and returning solvents, etc. to and from a textile scouring appts. comprises a dirty solvent storage tank and three stills; dirty solvent is fed to the first and second stills alternatively, residue from these being transferred to the third still, the whole system being controlled by a timing system and liquid level sensors. A sludge pump removes residue from the third still. The system is efficient, automatic, and has high operating capacity.
Patent FR-2366139-A1 (FR)
Title: Vehicle suspension leaf spring mounting - has resilient yoke elastically deformed to fit against spring eye or chassis fitting and formed with retaining tongues
Inventor: ALBERT JEAN
IPC: F16F1/28
Filed: 1975-10-31
Abstract: A vehicle suspension leaf spring is formed at its end with a mounting eye (1) which is pivoted between the cheeks (2) of a chassis fitting by means of a shaft (3). A resilient yoke (4) is mounted on the shaft and elastically deformed into position against the eye or the cheeks, prior to the mounting of the spring. Retaining tongues may project from the top and sides of the resilient yoke into engagement with the fitting. In order to ensure automatic alignment of the resilient yoke, the arms of the yoke are dished to fit over frustoconical ends of the cheeks or the eye. A sealing ring is fixed to both faces of each arm of the yoke to seal against the cheeks and the eye.
Patent FR-2332110-A1 (FR)
Title: Mobile wood cutting machine - has cutting arm and tree hoist with moving container and pivoting protection grille for chippings
IPC: B27L11/02
Filed: 1975-11-24
Abstract: The mobile wood cutter is mounted on four wheels and is adapted to be towed by a tractor when not used with its integral motor. It comprises a cutting arm and a hoist for lifting the trees and transporting them through the cutting station. The cutting arm can be moved in the horizontal plane and follows the direction of the hoist when feeding the tree through the cutter. It has a grille fitted for preventing the wood being ejected from the station, the grille being pivoted to permit removal of the wood at the end of the cycle.
Patent FR-2335055-A1 (FR)
Title: Monolithic integrated circuit including Darlington amplifier - has transistor protected by Zener diode from overloading introduced without complicating mfr.
Inventor: ROGER BERNARD
IPC: H01L27/06
Filed: 1975-12-09
Abstract: The monolithic integrated circuit consists of a transistor whose collector/base junction is protected against overloading by a Zener diode integrated into the circuit without making manufacture more complicated. The transistor collector consists of a lightly doped epitaxial layer on a heavily doped substrate. The base is formed by a heavily doped region of the same conduction type as the lightly doped region and extending over the bottom and sides of a 'trench' set into the surface of the device. The distance between this region and the substrate determines the max. base/collector breakdown voltage which is less than the collector/emitter breakdown voltage in the absence of the 'trench' and the region.
Patent FR-2337809-A1 (FR)
Title: Rolled awning force reduction and equalising device - has energy stored by spring during unrolling to release energy for rolling up (NL 8.7.77)
IPC: E04F10/06
Filed: 1976-01-06
Abstract: The device for equalisation of forces is for use with awnings or similar sunblinds, with a canvas which has its top end fixed to a rotatable spindle for winding it up, and its bottom end fixed to a loading rod braced by hinged stretcher arms. Unrolling and rolling are by motor drive or manually operated. A spring (15) stores energy when the canvas (1) is unrolled, and released again during the rolling-up process. This reduces the force needed for rolling up and overcomes resistance emanating from the stretcher arms (4), or other tension devices. The energy storage and release device may be in the form of one or more torsion springs, tightened during unrolling and relaxed during rolling-up.
Patent FR-2298028-A1 (FR)
Title: Fastener for joining thin materials - has narrow strip between piercing head and tail stop
Inventor: GEISS HELMUT
IPC: F16B15/00
Filed: 1976-01-19
Abstract: The fastener is punched from thin metallic sheet. A piercing, acute angled, triangle (1) is followed by a thin forming strip (2) which joins onto a stop piece (3), normally of width greater than the triangle. The length of the joining strip is compatible with the total thickness of sheets to be joined. The stop piece (3) can be coplanar with the triangle, or orthogonal to it, and may be punched in a variety of shapes. The triangular head is forced through the sheets by pressure. The fastener is particularly for joining metal coverings used in thermal insulation systems.
Patent FR-2340012-A1 (FR)
Title: Twin enclosure stereophonic loudspeaker network providing depth effect - has three loudspeakers in cylindrical cabinet with central reflector structure
IPC: H04R5/02
Filed: 1976-01-30
Abstract: The stereophonic loudspeaker network provides a controllable impression of depth, i.e. distance from the listener. Each enclosure is free standing and is intended to function at a distance from walls etc. The overall enclosure cylindrical shape is defined by an upper and lower cylindrical cavity housing three loudspeakers, two providing the upper and lower spectrum outputs and the third the depth effect. The region between the cylinders houses the reflecting system, the space at the enclosure centre defined by it, housing the filter circuitry. The depth speakers are connected between the individual bridge filters and include two potentiometers whose setting determines the amount of depth effect.
Patent FR-2341104-A1 (FR)
Title: Central heating boiler economiser - comprises pipe coil for reheating returning water
IPC: F24H8/00
Filed: 1976-02-10
Abstract: The economiser is for use with a central heating boiler, recovering the excess heat of the water returning to it. It can comprise a pipe coil reheating the return water, its length and diameter being matched to the heating capacity of the boiler and the quantity of water contained. It can be of copper, stainless steel and seamless wrought iron. The economiser must be placed vertically before the boiler, out of contact with the burner, and may be fitted to most domestic installations.
Patent FR-2342449-A1 (FR)
Title: Rapid closing float valve with freely pivoting arm - with main and auxiliary floats formed by single block
IPC: F16K31/28
Filed: 1976-02-27
Abstract: Rapid-closing float valve comprises an arm which pivots freely about a horizontal shaft and which is vertical when the valve is open. The upper end of the arm is connected to a control member for the valve, and its lower end is provided with a main float and auxiliary float connected to the arm and disposed to one side of and above the arm. The floats are formed by a single block of material, pref. expanded polystyrene, with an inclined lower surface extending upwards away from the arm. A section of the block through a vertical plane orthogonal to the pivot axis of the arm is pref. trapezoidal, with the connection between block and arm located on the side of the long base of the trapezium.
Patent FR-2347683-A1 (FR)
Title: Inspection of long electrical conductors - is performed by generating pulses and by foucault current variations caused by defects in conductor
Inventor: FLAMBARD CHRISTIAN
IPC: G01N27/90
Filed: 1976-04-05
Abstract: The element to be examined is placed in a position where it is coupled to one or more sensors sensitive to variations in Foucault currents caused, mainly, by defects in the element. The corresponding impedance variations are detected in the form of voltage pulses above a known threshold. The number of such pulses detected per fractional length of the element is determined automatically. Alternatively, those regions of the element where the number of such pulses exceeds as allowable maximal concentration are determined. At each pulse caused by a defect, the pulse is recorded in a memory and the time elapsed between the first pulse "window" defined by the time taken for a given length of the element to travel along the inspection line at constant speed. When the time elapsed exceeds the "window", the memory is erased.
Patent FR-2308082-A1 (FR)
Title: Antiaircraft missile proximity fuse - has insulated peripheral strips transmitting destructive impulse to essential component of electronic circuit
IPC: F42C9/14
Filed: 1976-04-09
Abstract: The proximity fuse has an electronic circuit providing the proximity characteristic. The outer surface of the fuse has two or more peripheral strips (2, 3), of electrically conductive material, insulated from each other. At least one essential component of the electronic circuit has its ends connected to the strips. An electrical impulse can be transmitted through the strips destroying or radically modifying the essential component in question. The component concerned can be a diode or a transistor essential for the correct functioning of the circuit.
Patent FR-2308703-A1 (FR)
Title: Continuously plating metal tapes in selected areas - by masking remaining areas with adhesive tape after degreasing
IPC: C25D5/02
Filed: 1976-04-22
Abstract: Metal tapes are continuously and selectively electroplated by degreasing through a bath, applying an adhesive tape of non-conducting material (PVC in particular) onto one or both sides but leaving bare the parts to be plated, and stripping this off after the plating bath. Several tapes can be processed simultaneously, the plated areas can have any desired shape, normal plant is used without heavy currents or agitation, the platings are particularly ductile, do not crack, and have good abrasion resistance and solderability. Suitable masking tapes are, esp those based on PVC or polyethylene terephthalate with thermoplastic adhesive.
Patent FR-2355228-A1 (FR)
Title: Manual operation mechanism for three-way valve - has fork to provide linear motion without creating side loads on slide
IPC: F16K31/524
Filed: 1976-06-15
Abstract: The three-way valve is provided with a double-sided valve head (5) attached to the rod (6). The valve rod is attached by a pin (12) to the shaft (11) which has a slot (10) to receive the end of the rod. The shaft (11) is mounted between horizontal guide plates (17, 18) which fit in grooves in the body (1). The ends of the shaft fit between the plates (13a) forming a fork (13) on the end of the operating lever (14). The pins (12, 15) secure the plates to the shaft. When the lever is rotated (F), the rod (6) is lifted upwards and the shaft (6) moves sideways so that no side loads are exerted.