baber/WOPTO huggingface dataset:
Patent FR-2117767-A1 (FR)
Title: Machining rubber - particularly printing cylinders at low temp produced by spray of cryogenic fluid
IPC: F28F13/00
Filed: 1970-12-16
Abstract: When flabby materials such as rubber are machined at normal temps. e.g. the grinding of a printing cylinder the operation is slow and hazardous because the workpiece heats up, gives off an offensive smell, clogs up the grinding wheel and causes it to splinter. This can be overcome and machine speeded up by freezing the workpiece with a spray of cryogenic fluid such as liquid nitrogen. The fluid is vaporised just before it meets the workpiece by being passed through an evaporator which receives radiant and convected heat, pref. from being in close proximity to the workpiece upstream from the machining zone. The vapour spray is much more effective than a liquid, when many droplets bounce off with little cooling effect.
Patent FR-2163721-A1 (FR)
Title: Rotary shuttle magazine - temporary storing during conveyance to returning chain
IPC: D03D47/26
Filed: 1972-12-15
Abstract: Rotary shuttle magazine for temporary storage of shuttle as they are returned to a conveyor chain which returns them to the shuttle feeder of a high speed automatic weaving loom is formed by stationary inner drum and an outer rotary drum whose inner periphery is provided with shuttle locating recesses.
Patent FR-2236331-A1 (FR)
Title: Speed regulation of electro-mechanical transducers - dynamically annuls apparent resistance by introducing resistance
IPC: H04R3/00
Filed: 1973-05-16
Abstract: The method ensures that the control of speed to by voltage control, whilst cancelling the influence of real resistance (1) in these systems without using a feedback loop. To cancel the effect of real resistance (1) a negative resistance (7) is placed in series with the real resistance. To obtain the effect of negative resistance (7) a voltage (U2) proportional to the output current of an amplifier is introduced in phase at the amplifier input. The voltage is independent of frequency and the resonance of the capacitor (3) and coil (4) effectively reduces the voltage (U4) to zero. The method may be used for low inertial systems such as vibration motors.
Patent FR-2236412-A1 (FR)
Title: Two part mould for "Dutch" cheeses - has shaped filter liner secured in each mould part
IPC: A01J25/13
Filed: 1973-06-27
Abstract: Two-part cheese mould comprising a basin-shaped lower force into which an upper force descends like a piston, the lower face of the upper force being formed as a cup-chaped cavity. The lower force and upper force are fitted with liners made of filter sheet, e.g. in thermoplastic or textile material, formed to fit closely to the moulding faces, each liner being fixed securely to its respective mould force. The two forces are pref. made of thermoplastic material such a high density polythene and the liner of each force heat-seamed to it all around the edge. The mould is used for moulding 'Dutch' chesses and similar moulded paste cheeses.
Patent FR-2237581-A1 (FR)
Title: Disinsectisation of wood and furniture - by treatment with insecticidal gas under press. following a vacuum
IPC: B27K3/10
Filed: 1973-07-20
Abstract: Appts. is for the treatment of woods for cabinet-making and for new and antique furniture in order to destroy the insects, and their eggs, which liver and develop inside the timber and get their nourishment from the starch or cellulose. The appts. comprises a box with a leak-proof closure, in which the furniture etc. is placed; a pump for prodn. of the initial vacuum, an inlet pump for introducing the insecticidal gas or the insecticide in the gaseous phase; a reservoir of the gas or the device for gasifying the insecticide; an expansion chamber into which the gas, which has been introduced under press. is suddenly expanded; a link between the expansion chamber and the box an evacuation pump for the insecticide and a device for the recovery or neutralisation of the insecticide. The admission of the gas under press. into the previously exhausted box assures the complete diffusion of the insecticide into the galleries and passages and the destruction of any animals present. The sudden expansion of the gas causes the small cavities: this provides a prolonged defence against any further attack.
Patent FR-2246121-A1 (FR)
Title: AC or DC high power electric signal emitter - using triac, or transistor, or thyristor, with trigger network
IPC: H03K17/72
Filed: 1973-09-27
Abstract: The electric signal emitter comprises a triggering system (3) and a semiconductor (4) means fed from an AC or DC source and delivering energy to a load (5). The triggering means can be a bimetal element which is arranged near a heat source obtained from a resistor in series with the load, or it may be a liquid conductor in a tube, the liquid establishing direct contact or operating via the use of a float. It may make use of other means such as a transistor, a heated wire, a winking lamp, an electromagnetic pendulum, or a RC circuit.
Patent FR-2202275-A1 (FR)
Title: Armour piercing shot - with core of high density sintered powder produced by explosive forming
IPC: B22F3/08
Filed: 1973-09-28
Abstract: An outer steel tube, which subsequently forms the jacket of the shot, has a base end cap slid into it and it is then filled with W, W-carbide or like powder, vibrated for predensification and a top cap slid into place. The whole is then encased in a shaped explosive charge with electrical detonator at the top and when fired the powder filling is compression sintered. Simultaneously, metal from the jacket is swayed into annular grooves or the like on the end caps which are then machined into ogive and base respectively. A driving band may be swayed on simultaneously.
Patent FR-2266091-A1 (FR)
Title: Quick action coupling for flexible tubing - connected by pushing into coupling released when spring clip opened
IPC: F16L37/088
Filed: 1974-03-27
Abstract: The inlet passage of the valve or other body is opened out to give a flat bottomed recess (2, 7) and either threaded or provided with an annular retainer groove (4) for a bush (1) holding an O ring (8). This bush is inserted up to a collar (5) which is slit circumferentially on opposing sides (13, 13a), leaving a narrow land between. The slit houses a spring clip (14a) which has one side open. The tube (9) is pushed in and sealed by the O ring, being held by edges on the spring clip biting into its surface. Removal is by separating the formed open ends (18, 18a) of the clip.
Patent FR-2267067-A1 (FR)
Title: Tubular frame for table or shelves - has corner assemblies joined by junction pieces
IPC: F16B12/50
Filed: 1974-04-12
Abstract: A steel junction piece (4) has an upper face (5) in the form of a right angled isosceles triangle. The lower face (6), parallel to the upper face and joined to it by a web, is longer and forms a shallow triangle. A forward projecting tab (9) extends from the lower face and opposite it is a counter-sunk hole in the web. The wedge lower face (6a, 6b) is first welded to each side tube (1, 2) leaving an open corner. A hole in the vertical tube (3) is placed over the tab and the assembly completed using a self-tapping screw in the hole. The table top or shelf fits on the wedge top surface.
Patent FR-2270145-A1 (FR)
Title: Folding frame system for hang glider - has frame tube ends joined by guy wires with tensioners
IPC: B64C31/032
Filed: 1974-05-10
Abstract: The frame consists of a main central tube with two shorter secondary tubes positioned on either side of it and pointing obliquely backwards, attached by a sliding clamp. A horizontal cable (5) in one or more sections connects the tips of the tubes and forms the shape necessary for a Rogallo type hang glider frame. The cable running between forms the leading edge of the wing. Two tubes (10, 11) extend downwards at right angles to the main tube and a tube (15) extends vertically upwards from the main tube. Tubes (10, 11, 15) are attached to the main tube by a sliding clamp. The ends of the various tubes are connected by cables (21, 22, 25, 26) which are tightened by tensioners (32).
Patent FR-2276982-A1 (FR)
Title: Construction of liquid gas tankers - has tanks and hull sections pre-fabricated and assembled to avoid dead spaces
IPC: B63B9/06
Filed: 1974-07-02
Abstract: A part construction group, consisting of deck and external hull sides, is assembled on a slipway. Another part construction group, consisting of a double bottom and fluid gas tanks, is assembled nearby, and connected to it, to form a hull section. This process is repeated, until the ship is completed. The external hull sides of one group are moved parallel outwards, from their final position, and are then moved back into their original position, after the other construction group has been inserted. The units are constructed on rolling platforms, at the correct height, so that they may be rolled immediately into place when complete.
Patent FR-2277214-A1 (FR)
Title: Prefabricated prestressed concrete swimming pool - consists of sectional units, with flat or sloping bottom, and fitments
IPC: E04H4/00
Filed: 1974-07-03
Abstract: The base of the swimming-pool is either horizontal or sloping, and made of reinforced concrete. Reinforced concrete, prefabricated uprights are identical except for varying height depending on the depth required. Prestressed concrete sheets of standard size are complemented by triangular sheets of the same material to form the required sloping bottom. Similar sheets are placed horizontally on the uprights around the circumference. The sheets have holes in into which are fitted special water-supply or water-discharge sections. The uprights have holders in for bolting the sheets to them. Rust-proof metal sections fix sheets with holes in to the uprights. The swimming-pool is lined with tiles, plastic, glass fibre or other standard material.
Patent FR-2278523-A1 (FR)
Title: Electric car using DC motor - has four lightweight batteries recharged during car operation
IPC: B60L8/00
Filed: 1974-07-17
Abstract: The vehicle batteries recharge themselves as the vehicle is running to increase vehicle range. The propulsion is by a 24 volt motor running at 4000 r.p.m. using four six volt batteries giving 160 amps and with a total weight of 78 kg. The recharging of the batteries is by fitting two 24 volt alternators, capable of generating 24 volts d.c. The alternators are belt driven from the vehicle rear wheels. Once the vehicle moves, the alternators recharge the battery. As an alternative, displaced air drives a turbine which drives a 12 volt alternator to supply lights etc.
Patent FR-2280963-A1 (FR)
Title: Pushbutton electrical switch using pivoted finger piece - has plastic piece groove and biasing projection for hinge
Inventor: ARCHAMBAUD GUY SERGE EWARD
IPC: H01H21/22
Filed: 1974-08-02
Abstract: The switch is operated by finger pressure on its top surface. The switch casing is in the form of a rectangular box, the top transparent face (1) of which is separate from the base and walls (12, 13, 11) but trapped in the casing. One edge of the top plate or face has a horizontal 'U' shaped socket (3) into which is located an extension of the casing wall (4). A projection (7) on the lower side of the 'U' acts against a vertical extension (14) from the base acting as a leaf spring to return the top plate to a horizontal position when it is at rest. The opposite end of this plate when depressed operates the switch itself (17) and may provide power for an interior lamp (V).
Patent FR-2242265-A1 (FR)
Title: Multi-arm headlamp wiper - driven from single electric motor and coupled by oscillating ring gear
IPC: B60S1/60
Filed: 1974-08-26
Abstract: The separate wiper arms of the headlamp wiper are positioned around the headlamp on swivel axes which pivot as the wipers traverse their section of curved lens. One of the wiper shafts has a gear at the bottom to couple to a rack driven by a single electric motor with oscillating drive. The wiper shaft has a second gear which drives a gear ring around the headlamp. The ring has a circular cross section so that the gear remains in mesh as the wiper shaft pivots. Other wipers are coupled to the ring to form a simple drive.
Patent FR-2288140-A1 (FR)
Title: Pyrolytic treatment of asphalt shales - using high temp. ash from a fluidised combustion zone as heat source
IPC: C10G1/02
Filed: 1974-10-17
Abstract: Pyrolytic treatment of asphalt shales, by (A) use of non-molten ash from combustion of carbonaceous material in a fluidised bed, at >700 degrees C (pref. >750 degrees C) as heat source (B) passing the hot ash into the upper section of a pyrolysis chamber contg. a fluidised bed, (c) passing the asphalt shale into the upper part of the pyrolysis chamber, through which it sinks by gravity, and (D) drawing off the solid residues from the shale and the cooled ash from the bottom. Ash from (A) is at a very high and uniform temp. and causes cracking of the asphalt without risk of agglomeration and blockage of pipes. The cracked prods. are smoke-free, content of olefins aromatics, etc. is similar to that from steam-cracking of heavy oils and can be processed in conventional refineries. Amount of ash required is only 1-2 parts per part of shale. The process can be combined with a heat recovery plant, e.g. for steam generator, in which the ash is produced.
Patent FR-2294624-A1 (FR)
Title: Cleaning device for beet digger spinner wheels - has shares cleaning wheels and cylinder
IPC: A01D33/08
Filed: 1974-12-16
Abstract: A beet harvester designed to keep the cleaning wheels free from mud in wet conditions has the digger supported on skids (11). Shares (13) dig the beet which fall on to cleaning wheels (15, 17). These wheels have hubs (21), curved spokes (23) and rims (25). They are surrounded by grilles (29) which slow the beet down below the speed of rotation of the spokes, thus causing a cleaning effect. Grilles (31, 33, 35) guide the beet over the cleaning wheels. A cleaning cylinder which can replace the grill (31) ensures that the beet are still correctly routed, and brushes the surface of wheels (15, 17) by means of rubber strips, removing any accumulation of mud, etc.
Patent FR-2260511-A1 (FR)
Title: Small bottle with pipette tube - is intended for transferring drops of diluent for thinning liquid paper correction fluid
IPC: B65D51/32
Filed: 1975-01-29
Abstract: A small bottle with a pipette tube is intended for transferring small quantities of a diluent used for thinning liquid paper correction fluid. The bottle (12), containing the diluent, has the pipette tube (20) stowed inside when the bottle cap (30) is in place. To use, the cap is unscrewed and the head (26) of the pipette tube grasped between the thumb and middle finger, with the index finger over the hole in the head. Liquid in the tube is retained in place until the hole is uncovered, when it is dispensed in droplets.
Patent FR-2298663-A1 (FR)
Title: Fire place easily dismantled for transport - has hearth with loose refractory brick lining and metal canopy
IPC: F24B1/18
Filed: 1975-01-24
Abstract: The fireplace can be easily dismantled and transferred from one location to another. It consists of a hearth-unit(1) with a U-shaped metal frame supporting refractory bricks(5) which are not joined together and are placed on the inside lateral walls of the frame and on a horizontal base-plate(4) located inside the wings of the U-shaped frame. A metal hood(2) overlies the hearth unit and links it up to an evacuation duct. A decorative exterior(11, 15) covers both the hearth unit and the hood. A pull-out tray(7) collects the ashes and cinders, and slides in channel runners(8) below the bricked surface.
Patent FR-2300704-A1 (FR)
Title: Helicopter with tubular steerable tilted body - has pivoted rotor blades for steering vertical body into flight attitude
IPC: B64C29/02
Filed: 1975-02-14
Abstract: The helicopter especially a helicopter which is tilted into the flight path has two counter rotating, coaxial rotors with blades for lift and propulsion. The angle of altitude change is derived from rotor blade movements. Each rotor has a hub with radial arms which carry profiled blades which are rotated to required adjustment angle. The helicopter axis is formed from tubular body which supports the rotors and the power transmission and helicopter steering elements are held outside the tubular body. The seats for the pilot and passengers are arranged with the backs parallel to the blades and the ground and offset from one another.
Patent FR-2261912-A1 (FR)
Title: Road vehicle brake system - parking brake applied by spring, released only by brake system air pressure
IPC: B60T17/22
Filed: 1975-02-21
Abstract: A vehicle braking system includes a spring assisted brake consisting of a cylinder in which slides a piston solid on a rod actuating the parking brake. The piston limits a working pressure chamber joined by an air brake pipe to an isolating valve. The piston acts against a spring. The isolating valve has two other branches. One goes to a secondary air pipe to an electromagnetic valve releasing the parking brake. There is an auxiliary reservoir, independent of any other reservoir. The overall effect is that, when parking, the brake is always applied by the spring and is released only by air pressure.
Patent FR-2308951-A1 (FR)
Title: Photochromic indilynic or benzothiazolic spiropyran compsn. - contg. vinyl chloride (co)polymer as binder, giving stable colour images
IPC: G03C1/685
Filed: 1975-04-24
Abstract: Photochromic compsns. which after colour formation are stable to light, darkness or heat, and do not require further development, comprise a dispersion ofindolynic- or benzothiazolic spiropyrans of formula (I) or (II) respectively in a binder comprising vinyl chloride homo- or copolymer contg. 50-100, pref. 80-90% vinyl chloride (where R1 is alkyl or phenyl, R2 is H, CH, Cl, Br, NO2, OMe or OEt, and R3 is H, Cl, Br, NO2, OMe or OEt; R4 is alkyl, phenyl, alkoxy, phenoxy or thioalkyl and R5 is H or alkyl, OMe or SMe). In a pref. embodiment the binder also contains 20-80% polyvinylidene chloride (PVDC). Prodn. of (positive) images either (a) from negatives by exposure to 2000-4000 angstroms radiation or (b) by photothermal recording process in which e.g. a thermal bead pref. at >=120 degrees C is used to inscribe a pattern and the background then stabilised by exposure to 2000-4000 Angstroms radiation. In (a) the unexposed parts may be used to superpose further images or may be permanently stabilised by the PVDC by exposure to pref. 1600-2600 Angstroms radiation.
Patent FR-2309942-A1 (FR)
Title: Publicity display panel placed in window - consists of simple flat rectangular panel construction and transparent panels have simple wire support
IPC: G09F15/00
Filed: 1975-04-28
Abstract: The publicity display panel is made up of two (1, 2) plaques. One plaque (1) is transparent; the other plaque has on one face a support (12). The plaques have holes in them through which screws are passed to bolt the plaques together. The publicity display poster is inserted in between the plaques before they are bolted together. The transparent plaque (1) has dimensions greater than those of the other plaque. The support (12) is formed from a bent rod one part of which is engaged in loops fixed to the back of the non transparent plaque.
Patent FR-2325125-A1 (FR)
Title: Combined clock and astrological display - has clock supplying periodic control signals for operating display
IPC: G09F27/00
Filed: 1975-09-18
Abstract: The combined clock and astrological display is used to allow stored astrological data to be displayed, in accordance with the time shown on the clock (12). The clock provides a 'start' control signal, at the beginning of each successive time interval of given duration and a 'stop' control signal, at the end of each of these time intervals. These signals are supplied to control means for the astrological display, so that the stored astrological data corresponding to the time interval represented by each pair of 'start' and 'stop' control signals can be displayed. The astrological data may be stored as film strip frames, which are successively projected onto a viewing screen (14) at the side of the clock (12).
Patent FR-2329955-A1 (FR)
Title: Refrigeration system heat accumulator - has space between fins and refractory material allowing air current to flow
IPC: F25B1/00
Filed: 1975-10-28
Abstract: The monobloc heat accumulator is particularly for refrigeration equipment where a refrigerating medium is circulated, and comprises a finned tubular copper heat exchanger enclosed in refractory material. The exchanger in no way modifies the thermodynamic cycle of the medium and has a space between the fins and the refractory material allowing an air current to flow restoring the heat. It can be mounted in the high pressure system between compressor and condenser. Restoration of accumulated heat can be effected with the aid of a fan.
Patent FR-2329560-A1 (FR)
Title: Hoist and conveyor for metal sheets - has suction head to raise upper workpiece for movement on wheeled carriage
IPC: B21D43/24
Filed: 1975-10-30
Abstract: The hoist and conveyor is for the transportation of large stacked work pieces, esp metal sheets, to a processing station. It uses a lifting appliance (6) with suction heads (8), to raise the uppermost sheets (1). The sheet is received and transported by a carriage (9), which may be displaced on a track extending below the raised suction heads and above the stack (2). During lifting the carriage is outside the range of the hoist and is only moved below it to receive the work piece. The hoist has a lifting frame (7) carrying the suction heads in parallel rows. The first row may be raised independently of the other ones. The side of the frame away from the hoist has air jets to blow air into the space which is created when the edge of the uppermost workpiece is raised.
Patent FR-2331000-A1 (FR)
Title: Flow meter and bubble trap for blood being dialysed - has two chambers with second very wide communicating through openings one above and one below blood level
IPC: G01F1/52
Filed: 1975-11-07
Abstract: Two chambers (C, D) communicate by a gap (E) in the dividing partition (s) below fluid level, and by another gap (F) above it, which equalises the air pressure on the two surfaces. Blood entering one chamber (C) passes through the submerged gap (E) and leaves from the other (D). As the gap (E) is narrower than the entry orifice (a) there is a difference in the liquid levels in the two chambers that indicates the flow rate. The outlet chamber is considerably wider, so that its fluid level (V2) changes comparatively little. The flow rate is given by the level (V1) in the inlet chamber. Air bubbles in the blood rise to the surface in the inlet chamber (C) or in the outlet chamber (D) where the liquid flows slowly and quietly.
Patent FR-2290750-A1 (FR)
Title: HF high current transformer for welding circuit - concentric tubular formers have annular space for blower heat convection
Inventor: SANTINI CARLO
IPC: H01F30/10
Filed: 1975-11-07
Abstract: High frequency power transformer for use in welding circuits. It consists of tubular concentric formers spaced at a distance from each other, each carrying a winding layer of the primary and the secondary. The annular space between the concentric formers is used as a cooling channel. The former has a circular cross section which encloses a rectangular limb of the iron core. There is a blower unit mounted coaxially with the winding former. The former is made from an insulated ceramic material. The heat generated is removed very quickly and consequently it will be possible to use a smaller and lighter iron core in the design.
Patent FR-2308749-A1 (FR)
Title: Sound insulating construction block - has brick core with dovetail joint faces and sound insulating tile facing
IPC: E04B1/82
Filed: 1976-01-23
Abstract: The brick part (1) of the block has vertical grooves (2) on one end, and protrusions (3) on the other end. These grooves and protrusions enable adjacent blocks to be dove-tailed together. On the long side (4) which faces outwards are also vertical grooves (5) into which fit ribs (7) belonging to the sound-proofing tiles which are made from hard artificial foam.