baber/WOPTO huggingface dataset:
Patent FR-2260125-A1 (FR)
Title: Three-dimensional cine film system - uses projection of successive stereoscopic images onto screen viewed through special glasses
IPC: G02C7/16
Filed: 1974-01-31
Abstract: The system uses a stereo cine camera providing two simultaneous film reels, which are combined to provide a single film reel, with successive frames providing different stereoscopic images, alternate frames being obtained by using the same objective. The latter film reel can be projected onto the screen using a normal cine projector, and the images appearing on the screen are viewed by an observer wearing special glasses. These have shutters (10, 11) which are operated electromagnetically and which serve to obstruct vision through each eye in turn, in synchronism with the alternating stereoscopic film frames, so that successive frames are viewed by the right and left eyes of the observer respectively.
Patent FR-2261472-A1 (FR)
Title: Pocket torch with pivoting head - has switch actuated by sliding head in lengthwise direction of housing
IPC: F21V23/04
Filed: 1974-02-18
Abstract: The bulb head rotates in relation to the battery housing about an axis at right angles to the direction of radiation and slides parallel to this direction, while a rotary contact and a switch connect the bulb terminals to the battery. The switch is opened by sliding the head. The rotary contact can be in the form of a metal trunnion on the housing round which the head turns, this trunnion passing through a metal blade on the head. The aperture in the blade can be of two different widths, the trunnion being out of contact when slid into the wider portion.
Patent FR-2266007-A1 (FR)
Title: Machine with force multiplied energy output - uses battery driven motor and system of wheels and levers
IPC: F03G7/10
Filed: 1974-03-27
Abstract: The electric motor drives a shaft which carries six eccentrically mounted wheels. the wheel are mounted in pairs, each pair at an angle of 120 deg. to the others. The rotation of the wheels causes levers to oscillate about a pivot which, in turn, oscillates two further levers and finally a connecting rod which rotates the crankshaft . The force transmitted is increased by each consecutive lever until, according to the inventor, the energy at the crankshaft is sufficient to drive a generator and to drive wheels so that the motor is unnecessary for continued operation. The crankshaft is also provided with a gear wheel to drive the road wheels of a vehicle.
Patent FR-2275694-A1 (FR)
Title: Method of assembling vehicle suspension torsion bars - uses marks on splined ends to indicate correct angle of twist
IPC: B60G11/20
Filed: 1974-06-18
Abstract: For fitting torsion bars in vehicle suspensions, a vehicle with the torsion bars previously adjusted to give the correct vehicle height and weight distribution has marks (25, 26) made on the ends (27, 28) of the bar (30) opposite marks (22, -23) on the supports (21, 24). The bar is then removed, and subjected to the necessary torque in a suitable machine. The ends of the bars have different numbers of splines so that with the torque applied, only one pair of splines is in line. These two splines are then marked. Other torsion bars can then be subjected to the required torque and the inline splines marked. By counting splines the positions which should correspond to the support markings are found. The bars can then be fitted and the support (24) twisted and bolted in place, giving the correct torsion to the bar.
Patent FR-2243168-A1 (FR)
Title: Hydrogenation catalyst for adiponitrile - from molten iron oxide solidified then activated
IPC: C07C67/00
Filed: 1974-06-19
Abstract: Catalyst compsn. for hydrogenating org. cpds. is made by solidifying into particles for a fixed bed, a molten iron oxide contg. >96.5% iron oxide and having an oxygen: Fe atomic ratio of from 1.2:1 to 1.4:1, preferably 97.5% iron oxide and an oxygen: Fe ratio of 1.33 to 1.37:1 partic. corresp. to magnetite spec. of natural Swedish origin. The granulometry of the ground catalyst is 3.35 to 1.41 mm The catalyst is activated by heating in the presence of hydrogen at 200-600 degrees C which preferably removes at least 85% of the oxygen. Particularly activating in the presence of 0.25 to 25% ammonia using dry hydrogenat 325-375 degrees C. The catalyst is made nonpyrophoric by a stabilisation process, the activated catalyst has a specific, surface of 4-25 m2/gm and hexamethylenediamine may be pref. from adiponitrile using the catalyst. Highly purified hexamethylenediamino is required for Nylon 6.6. which requires expensive special distillation equipment, using the catalyst, the level of impurities is controlled obviating the need for expensive purification.
Patent FR-2276839-A1 (FR)
Title: Automatic injection appts. for small animals - with pneumatic jack to move syringe body once needle has penetrated skin
Inventor: KANIECKI JANECK
IPC: A61D1/02
Filed: 1974-07-04
Abstract: Automatic appts. for making injections, partic. into small animals, comprises a rigid frame with a support for a compressed air jack; this moves an arm which carries two syringe bodies. The front end of the jack has a rod fixed in the part of the frame; it carries a return spring; a screw, at the other end, adjusts a movable stop inside the jack to limit its course. The syringe support has a bent arm which holds the rod of the piston; the piston rod screws into the part so that the posn. of the piston in the syringe can be adjusted. The rod is provided with a return spring. The front of the frame ahas an inclined surface with two identical stages; these are shaped to suit the structure of the animal to be treated. In the case of chickens a groove is provided to receive the neck with transverse hollows to take the fingers of the operator while he immobilises the chicken in the desired posn. The stages pivot around a horizontal axis and the lower ends come into contact with a detector when the animal is in posn. and set off the injection process cycle; the stages are traversed by holes for the passage of the needles. The piston remains immobile with respect to the frame during the whole of the injection while the body of the syringe is immobile during the approach when the needle penetrates the skin of the animal being treated; the body of the syringe then moves a distance corresp. to the quantity of liq. to be injected. As the syringe only moves a short distance, it is easy to prevent any vibrations by means of a short slide bar.
Patent FR-2244294-A1 (FR)
Title: X-ray tube HV generator - has two series-coupled multipliers with diodes and capacitors, and single capacitor bridging first multiplier
IPC: H02M7/10
Filed: 1974-09-17
Abstract: The generator for X-ray tubes consists of two series-coupled multipliers, each with diodes and capacitors. The first multiplier is supplied with a.c. at one end, and a capacitor bridges the multiplier to reduce the overall internal resistance of the multipliers. Each multiplier consists of two chains of series-coupled capacitors interconnected by diodes so that the junction between the first and second capacitors in one chain is connected via a diode to the junction between the second and third capacitors in the second chain. The capacitor bridging the first multiplier connects the a.c. source to the input of the second multiplier and also to the first multiplier output.
Patent FR-2287085-A1 (FR)
Title: Applying transparent coatings to optical recordings - to protect the surface without loss of sensitivity
Inventor: DUBOIS JEAN-CLAUDE
IPC: G11B7/26
Filed: 1974-10-04
Abstract: Transparent coatings for protecting a signal recorded on a surface as a modulated series of peaks and troughs suitable for optical scanning. The coatings are formed by in situ polymn. of a volatile monomer while subjecting the pre-recorded surface to a high frequency electrical discharge, in a chamber at controlled vacuum. The coating matls. should have a refractive index (n1) which is significantly different from that of the matl. carrying the recorded signal. Pref. a vinyl ro silane monomer is used. The coating protects the recording from damage by scratches without interfering with playback, and allows the surface to be cleaned without damage. The greater the difference between the refractive indices of the coating and substrate matls., the less the differential depth of the signal profile has to be increased (because of transmission via the coating) to maintain an optimum difringence sensitivity.
Patent FR-2250075-A1 (FR)
Title: Lighter for gas burner of hearth - has components on common support intermittently connecting button with switch
IPC: H01H3/02
Filed: 1974-11-05
Abstract: The lighter has a control button and a switch connected to a spark generation circuit, preferably of the capacitive type, producing sparks each time the button is pressed. The mechanical connections between button and switch comprise a number of active components, on a common support, operating the switch control intermittently. The common support can be integral with the button and move in relation to the switch. The components can be few, or equal at least to the number of sparks to be produced each time the switch functions. They can be formed by the edges of tapered openings formed in a part of a rod integral with the button.
Patent FR-2290801-A1 (FR)
Title: Numeric transmission and reception centre - which is for use at millimetric wavelengths, has automatic frame length correction system
Inventor: CHAVANAT PAUL
IPC: H04L5/18
Filed: 1974-11-08
Abstract: The data transmission and reception centre is for two way communication limited by optical visibility, in the millimetric electromagnetic wave-band. The distance between two posts may be about 15 milometers, corresponding to a go and return time of 100 microseconds, and the system uses a 125 microsecond cycle. Data is transmitted in frame form, and the frame generator is used to provide identification of frame transmission and reception, synchronisation being achieved using a comparator measuring the duration of the two phases, producing an error signal if there is any inequality, and correction of the frame duration with itself is a function of the distance between the two stations.
Patent FR-2292085-A1 (FR)
Title: Sandwich building panel - has insulating core with notched edges receiving folded edges of metal sheet cladding
IPC: E04C2/292
Filed: 1974-11-20
Abstract: The insulating sheet is preferably of plastic foam, such as polyurethane, polyisocyanurate, phenolic foam etc., and has a thickness of several tens of millimeters. On each of its opposite ends is a notch extending roughly halfway across the sheet thickness. The metal sheet (3) of steel for example, has parallel ridges alternately protruding and countersunk. One end of the sheet has a right-angled fold then a hair-pin bend with a projection slightly less than the thickness of the insulating sheet near the notch. On the end opposite the fold, is a hair-pin turn (7) parallel to the plane, then a right-angled part (8), then an end-piece parallel to the plane with a slight hair-pin bend. The width of the part (8) is slightly more than the thickness of the insulating sheet near the notch.
Patent FR-2253650-A1 (FR)
Title: Reinforced concrete block handling method for lorry - involves lifting end of lorry and pivoting about vert. axis
IPC: B60S13/00
Filed: 1974-12-03
Abstract: To lift the assembly the vehicle (9) is slightly inclined to the assembly and then lifted at one end. The lifted end is then moved laterally by a rotation about a vertical axis. This is repeated as necessary. Movable supports (20), (21), (22) can be used at the end of the vehicle to help in lifting and lowering it. A beam (23) can be fitted to lift the vehicle and can support jacks (20), (22) fixed to the vehicle and acting on the ground (30). This beam may be curved or straight in plan view. Roller devices may be placed under the vehicle rear wheels to ease handling problems.
Patent FR-2256447-A1 (FR)
Title: Xerographically produced printing plate - for use in relief or screen printing partic. of short runs
IPC: G03F7/12
Filed: 1974-12-26
Abstract: A printing plate, flat or cylindrical, for use either in relief or screen printing, is prepd. by bringing an element carrying a latent electrostatic image into contact with an element having a multiplicity of cavities or intermediate spaces contg. a liq. but hardenable matl. then sepg. the element in such a way that the liq. is removed from the cavities or intermediate spaces in the charged image zones by electrostatic attraction and thereafter hardening the liq. in the background zones to form the printing plate. The liq. may be paraffin wax, bees wax or carnauba wax, or silicone resin. The element carrying the cavities or intermediate spaces is pref. a relief printing roll or a sieve for screen printing. Gives a simple and relatively cheap method of preparing printing plates rapidly, without the need for etching, and is partic. suitable for short runs. The latent image can be produced xerographically, partic, using a photo-sensitive zinc oxide-coated paper.
Patent FR-2297564-A1 (FR)
Title: Compartmented rabbit breeding hutch - has dens, nesting boxes, exercise and feeding area
IPC: A01K1/03
Filed: 1975-01-15
Abstract: The rabbit breeding hutch frames are manufactured by means of three quick operations, i.e. drilling, bending and welding. The cages are divided into the following components: a spacious feeding and exercise area, two smaller separate dens, an upper frame and a lower frame. Access from the exercise area to the dens is through two openings at ground level. Four angel iron legs (8) support the hutch and the floor (10) is composed of a rectangular mesh grille. A corrugated sheet of galvanised metal (9) protects the food trough, drinker and rack rack. Two nesting boxes are located in the dens with inclined ramps below. There are two rear and two front doors.
Patent FR-2308077-A1 (FR)
Title: Sliding back sight for sporting gun - has springs to engage grooves in rib along top of barrel
Inventor: CARREGA MICHEL
IPC: F41G1/18
Filed: 1975-04-15
Abstract: The sliding sight is for a sporting gun, so that adjustment can be made easily and quickly, and consists of a block (3) which in cross section has a lower part which is inverted U-shaped, each arm having a turned-in flange so that the block can slide along a rib (2) along the top of the barrel of the fun, this rib having vertical grooves each side. To locate the block spring strips on either side of the block engage the grooves, the strips being disengaged to allow the block to slide. In side view, the block is triangular, sloping down to the rear. A V groove is incorporated in the top of the block to form a sighting groove.
Patent FR-2288625-A1 (FR)
Title: Injection moulded stencilling template - has less material in half furthest from point of injection
IPC: B43L13/20
Filed: 1975-04-21
Abstract: The template has supporting beads running along the sides and protruding from the two faces. The quantity of plastic material in the half furthest from the point of injection or the runner is less than in the other half. The bead furthest from the runner can be narrower than the one closest to it, and the thickness of the template in the further half can be less than that in the closer half. It can decrease steadily from the runner. On the smaller of the two beads there can be protrusions extending inwards, so as to increase the width to a value equal to that of the larger bead.
Patent FR-2318772-A1 (FR)
IPC: B62B3/00
Filed: 1975-07-24
Abstract: The trolley has a lower platform which is provided with rollers and carries two fixed lateral grills and a movable grill between the fixed grills. At least one horizontal shelf is pivotably mounted on a first of the fixed grills and is pivotable between a withdrawn position against the first fixed grill and a horizontal position in which the shelf bears against a rod of the second fixed grill. A gate mounted on one of the fixed grills to be movable inwardly of the space defined by the three grills from a closed position to an open position prevents the shelf from being pivoted to its withdrawn position so long as the gate is in its closed position. A fixed gate is disposed above the lower platform. The distance between the gates and the shelf immediately above them is less than the height of the objects to be transported by the trolley.
Patent FR-2320536-A1 (FR)
Title: Piezoelectric crystal pressure transducer for tubes - has crystal held by clamp to determine pressure fluctuation in tubes attached to engine
IPC: G01L23/10
Filed: 1975-08-08
Abstract: The pressure transducer, has a piezoelectric crystal (1), held between the flat of a jaw (20) and the corresponding flat face of a spring loaded clamp (24). The jaw (20) is in contact with the part (3) whose vibrations are to be analysed. An insulating material layer (11) separates the crystal (1) from the loaded clamp (24). Signal leads (12) are taken along a groove (27) of the clamp (24) to reading or recording equipment. The reading or recording equipment may consist of a spectrum analyser. When used on a Diesel engine, the transducer and equipment can give a measure of the speed of the engine.
Patent FR-2322943-A1 (FR)
Title: Carding device has feed roll speed controlled - to feed fibre lap onto carding roll in dependence on thickness of fibre lap
Inventor: JUILLARD YVES
IPC: D01G23/06
Filed: 1975-09-03
Abstract: A carding machine includes a main card roller onto which fibres are fed by a feed roll co-operating with pref. a feed table. Connected to the axis of the feed rol are two radial arms connected by linkages to pref. cams rotating with a doffing roll which removes the carded fibre lap from the carding roll. Dependent on movement of the radial arms in accordance with variations in the thickness of te fibre lap passing between the table and the feed roll the rotational speed of the feed roll and also pref. the doffing roll is controlled. The speed of operation of the carding device is controlled in dependence on variations in thickness of the fibre lap, thereby producing a more uniform carded lap.
Patent FR-2330409-A1 (FR)
Title: Prodn. of vaccine against leptospirosis - starting from specific Leptospira icterohaemorrhagiae serotypes
Inventor: MAILLOUX MARCEL
IPC: A61K39/02
Filed: 1975-11-05
Abstract: Prodn. of a vaccine against leptospirosis is carried out by culturing a virulent strain of the serogroup icterohaemorrhagiae (serotype copenhageni and/or icterohaemorrhagiae) in a Reiter-Ramme medium contg. NaCl, phosphate buffer, rabbit serum and a small amt. of haeimmoglobin, at ca. 30 degrees C for 4-6 days. The harvested cultures are then inactivated and centrifuged at low temp. (>=10,000 G). The sediment is washed with formolated Sorensen buffer and recentrifuged to remove any remaining proteins. The product is pref. taken up in a physiological soln. to obtain a stock soln. from which doses of the vaccine can be made up. The vaccine is effective against the most prevalent (in France) pathogenic serotypes of the Leptospira spirochaete, and does not cause allergic reactions.
Patent FR-2295200-A1 (FR)
Title: Door hinge with restoring spring - has torsion spring acting as door closing torque element connected to hinge plates
IPC: E05F1/12
Filed: 1975-12-16
Abstract: The hinge has at least two plates connected by a pin. This hinge is used especially for doors and it acts also as a door returning mechanism so that for example a special door closing mechanism is not necessary. The hinge pivoting pin has a sleeve which has in turn a torque rod whose one end is firmly held with middle plate (2) and whose other end is held firmly on one hinge plate (3). The torque rod can be a stack of springs held together by clamps. The ends of this leaf spring bracket are held in rectangular holes in the holding lugs connected to hinge plates. The torque rods are connected to the hinge plates by transverse pins (10).
Patent FR-2335825-A1 (FR)
Title: Location of exact position of mobile element - using light source, measurement scale and mobile position reader
Inventor: LLOP HELENIO
IPC: G01D5/36
Filed: 1975-12-18
Abstract: A location scale (1) is placed on the fixed element parallel to the path of the mobile element (2) and on at least part of the fixed element containing the position to be located, this location scale comprising a series of transparent bands A0, A1, A2...An of equal width b and separated by equal intervals. The device has a position reader which moves with the mobile element and contains a light detector and a mask on which is a series of slits A10, A11,....A1n separated by the same intervals. When this mask moves along the scale, at any moment, more than k bands of the location scale are superimposed on k slits, k being much less than n. The intensity of light passing through the bands and the slits measured and a locations signal is derived which contains a high amplitude pulse at the position of super-position.
Patent FR-2299866-A1 (FR)
Title: Substd. benzo pyrano (3,4-c)pyridin-ones - with a 3-hetetrocyclylethyl substit., useful as bronchodilators
Inventor: BROWN RICHARD E
IPC: C07D491/04
Filed: 1976-02-02
Abstract: Benzopyranopyridine derivs. of formula (I) are new: (R1 and R2 are each H, OH, 1-6C alkyl or alkoxy, or are together methylenedioxy; R3 and R4 are H,1-6C alkyl or opt. substd. aryl, but R3 is not H if R4 is H; X is CHR5, NR5, CH2CH2, O,S or direct bond (completing pyrrolidino); R5 = H or 1-6C alkyl). They are prepd. e.g. by reacting Hal. CH2C(R4)O with corresp. N-unsubstd. benzopyranopyridin-5-one, then reductive alkylation with the appropriate heterocycle. (I) are bronchodilators and unlike most known cpds. of this type do not induce convulsions at 200 mg/kg.
Patent FR-2355487-A1 (FR)
Title: Electrically heated plastics cooking vessel - has resistance wires embedded in plastics base so requiring no insulating sheath
IPC: A47J27/00
Filed: 1976-02-12
Abstract: The cooking vessel (1) with integral electric heating elements (3) is entirely of plastics with the heating elements embedded. The heating elements (3) are of the wire resistance type, may or may not be sheathed, and are in intimate contact with the plastic of which the vessel (1) is constituted. As a result the elements are completely insulated and penetration by cooking liquids is avoided. The elements are built into the walls or the base (2) of the vessel. In the latter case simple electric insulation may be provided by the plastic of the base. The max. temp. of the elements is below the fusion point of the surrounding plastic, and the low thermal dispersal properties of the plastic may be used to derive a vessel with a constant specified and relatively low external temperature.
Patent FR-2341074-A1 (FR)
Title: Chain with varying link pitch - uses swinging links to vary local speed of chain in certain zones
IPC: F16G13/00
Filed: 1976-02-13
Abstract: Each link pivots about an axis (6) at right angles to the direction of motion of the chain, and the arrangement of the links is such that each may pivot through an angle of almost 180 deg. The links (B) are formed from flat plates of arrowhead form, which nest together, head to tail, when the chain is not extended. The tails (3, 4) of each link are connected by rods (L) to the head (5) of the link in front and may pass from the upper to the lower surface of the chain in doing so, or may alternately connect upper surfaces of links then lower surfaces. In the first case, the links all rotate in the same direction as the chain extends and in the second, the rotation alternates. Rotation of the links in the required zones is achieved by fixing arms to each end of the axis (6) having rider wheels which run on fixed ramps placed on each side of the chain track.