baber/WOPTO huggingface dataset:
Patent FR-2237712-A1 (FR)
Title: Gravity die casting light alloys - using compressed air above molten metal in combined downstick and feeder
IPC: B22D27/13
Filed: 1973-07-16
Abstract: Mould is filled by a downstick with a conical feeder-head, the metal being poured in until its level is near the top of the cone. An air-box is then placed over the cone, the bottom of the box having an annular skirt which dips into the molten metal very near to the edge of the cone so rapid solidification occurs at the rim of the cone. Gas under pressure is fed through the air box and forces the molten metal down the feeder. The outer dia. of the skirt matches the bore of the cone leaving a gap pref. of 2mm; and the air-box has a shoulder which rests on the top surface of the mould. The pressure exerted on the surface of the metal in the feeder is pref. 0.3-0.8 kg/cm2.
Patent FR-2242529-A1 (FR)
Title: Composite lightweight building panel - has wood and plaster layers on a foamed glass insulating core
IPC: E04C2/24
Filed: 1973-09-03
Abstract: The panel which can be made in a variety of sizes, has an outer leaf of wood or reconstituted wood. Other suitable materials are metal, plastic, or plaster. This outerpanel (1) is attached to a foamed glass core (3) by means of a special glue. The central core is provided as a thermal and sound insulation medium. The inner leaf (4) is made of plaster or other similar material. In order to protect the surface of the outer leaf of wood it is varnished (5). The panel is very light and may be manually positioned without the use of expensive cranes. The insulation properties are very good.
Patent FR-2200095-A1 (FR)
Title: Wall vents in foaming moulds - are large diameter holes with internal bored plastic plugs
IPC: B29C59/00
Filed: 1973-09-21
Abstract: The mould walls have large dia holes as vents which, at the inner end, contain plastic plugs with a number of small dia openings. The plugs are counter sunk with the surface flush with the inner mould surface, and are used once only. The number and dia of the plug openings vary according to the foam pressure concerned. The vent holes themselves are 8-12 mm dia. Loss of material is eliminated and the vents are positioned at points of optimal effectiveness.
Patent FR-2271295-A1 (FR)
Title: Gas mixtures for heat treating steel - esp. for controlled carburisation
IPC: C21D1/76
Filed: 1973-12-21
Abstract: Furnace gas mixts. which can be adjusted to suit annealing, heating prior to tempering, and case-hardening, contains a 30% H2/70% N2 carrier gas with opt. 0-2% CO2, and 0.2-30% hydrocarbon, e.g. C2H2, C2H4, C2H6, are used at 700-1050 degrees C, 0.1-30% NH3 may be added and the pref. operating temp. is then 800-900 degrees C. A mixt. esp. for annealing or pre-tempering heating contains 0.2-12% C2H2 used at 880-920 degrees C. A mixt. esp. for carburisation contains 1-15% C2H4 or C2H6 used at 850-1050 degrees C and pref. 8% C2H4 in N2 used at ca. 1000 degrees C. Thus steel may be heat treated with minimal deposition of carbon and improved control of carburisation c.f. prior art.
Patent FR-2228421-A1 (FR)
Title: Tractor mounted olive harvesting machine - has large envelope in two halves connected to two fans driven from tractor
IPC: A01D46/00
Filed: 1974-01-23
Abstract: The machine is mounted on a tractor foreloader. The envelope, made from some suitable material, is in two parts, which pivot like jaws. The bottom half has a slot to accommodate the tree trunk and an aperture leading to a sack to collect the olives, which can be replaced as required. The envelope is connected to a pair of fans driven by the tractor power take-off, by a flexible duct. The whole assembly is adjustable for height. The whole of the tree is engulfed within the envelope, the fans are engaged by the driver, who constitutes the only labour required, and the fruit is subjected to a blast of air, which causes it to fall into the lower part of the envelope and then into the sack.
Patent FR-2271339-A1 (FR)
Title: Discharge control for tipping lorry - has metering hopper operated when lorry body is horiz. and driven by wheel
IPC: E01C19/20
Filed: 1974-05-17
Abstract: On tipping of the lorry the material in the lorry passes through a hopper. Outflow from the hopper is controlled by the speed of rotation of a cylinder at its base. A pulley wheel resting on the vehicle wheel and supported on a swinging arm controls the cylinder speed by a transmission system comprising a chain, a telescopic arm and a final drive chain. The discharge cylinder is locked when the tipper body is horizontal. The control is light, easily dismantled and can be adapted to fit different vehicles. It avoids wasting material by being able to vary the rate of discharge as required.
Patent FR-2271366-A1 (FR)
Title: Method of repairing waste disposal ducts - uses metal mesh and mortar coating for cleaned internal walls
IPC: E04F21/14
Filed: 1974-05-14
Abstract: The process allows damaged waste-disposal ducts to be repaired without the necessity for demolition and rebuilding. The inside wall of the damaged duct is first of all cleaned by any appropriate method. Once the damaged section has been repaired, again by any appropriate method, a sheet of expanded metal with 7-12mm mesh is fastened to the duct, with bolts or other appropriate devices. The mesh acts as a reinforcement for a coat of plaster or mortar applied to the wall. This coating should consist of 60% sand and 40% cement with the addition of synthetic resins.
Patent FR-2279611-A1 (FR)
Title: Hatch cover with metal frame - has discontinuous upper hinge and low mountings sections on frame
IPC: B63B19/14
Filed: 1974-07-26
Abstract: The hatch cover is made up of a number of standard panels (E) surrounded and held in place by a metal frame (3) of box section. The frame fits inside a fixed deck frame (1) of similar material and shape. The hatch frame has an outer edge which covers the deck frame entirely and makes the hatch watertight. The hatch is not fitted with conventional hinges but the fixed frame has a cylindrical portion along one edge away from the corners. A hinge bar (6) fits inside the cylinders and this is connected to the hatch frame. In this way the hatch pivots about the centre line of the bar (6).
Patent FR-2241819-A1 (FR)
Title: Circuit stepping up voltage above battery in electronic timepiece - uses self inductance with chopper in supply circuit building up charge in storage capacitor
IPC: G05F1/46
Filed: 1974-08-23
Abstract: A voltage converter is used for stepping up the low voltage of a battery to a relatively high value necessary for driving a liquid crystal display device in an electronic watch operated by a crystal oscillator. The circuit consists of a self-inductance, a charging chain for the self-inductance using a battery supply and a chopper for interrupting the current flow at regular intervals. The inductance has a discharge chain with a storage capacitor and a series diode to prevent leak back of the charge. A transistor circuit insures that the supply remains continuously connected when the capacitor voltage has exceeded a certain value. Pulses derived from the watch time basis continuously switch the transistor on and off.
Patent FR-2246645-A1 (FR)
Title: Corrosion resistant austenitic stainless steel - contg. copper, molybdenum and nickel with reduced nickel content
IPC: C22C33/04
Filed: 1974-10-03
Abstract: A corrosion resistant stainless pore-free steel of austenitic structure includes 15-45% Mn, 10-30% Cr, 0.85-3% N, more than zero- 1% C, 0-2% Si and >=1 of the three elements Cu, Ni and Mo in the following quantities, 1-3% Cu 1-4% Ni or 1-5% Mo, the total quantity of the three elements not exceeding 5% of the alloy, the remainder being Fe and impurities. The composition is such that the following two equations are satisfied: (a) % Cr + % Mo + 0.8 (%Mn) - 11.8 (%N-0.1)-1.23(%Ni)-(28.5 + %Cu) O, (b) 30(%C + %N) + 0.5(;Mn) + % Ni >=1.5 % Cr + % Mo + 1.5 (% Si), by selection of the component elements, a stainless steel low in nickel can be obtained with good resistance to acid attack by HCl and H2SO4.
Patent FR-2289110-A1 (FR)
Title: Prefabricated window box container - has end, intermediate and corner units with connectors
IPC: A01G9/02
Filed: 1974-10-31
Abstract: The units are made in thin asbestos cement and consist of two end pieces (1), intermediate parts (2) and corner pieces (3). The intermediate parts comprise longitudinal walls (4, 5) and bottom (6) connected and braced to each other by transverse perforated ribs. Intermediate ribs can be joined by means of connectors (13) which have the same contour as the units and which are provided with grooves (14, 15) separated by webs (16) to take the open and adjacent ends (10, 11) of two units. The transverse ribs do not meet at the bottom, thus allowing moisture to run from one end of the unit to the other.
Patent FR-2291555-A1 (FR)
Title: Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices
IPC: G08B17/00
Filed: 1974-11-14
Abstract: The intruder detection circuit is in the form of a closed loop, with the alarm means operated in response to the loop circuit being opened. The alarm signal means consists of an electronic device, which automatically provides a modulated signal upon the loop circuit being opened for several audio alarm devices with all the devices being supplied from a small battery, e.g. charged from the mains, allowing the alarm devices to operate for a number of minutes. Pref. the battery charge is sufficient to allow 4 or 5 air horns to operate for about 12 minutes.
Patent FR-2294386-A1 (FR)
Title: Universal crosshead support for camera appts - has central telescopic pillar with stays joined by flexible strap
IPC: F16M11/26
Filed: 1974-12-13
Abstract: The universal type crosshead support for giving an auxiliary stabilising force to camera equipment. There is a cylindrical support (1), at one end of which is fixing (2) for the transportable equipment. On this is a sleeve (7) which can slide and rotate on the support and can also be locked to it. There are also two hinged arms (11, 12), with hinges at the top. The lower ends of these arms are joined by a flexible strap. A telescope (5) or similar instrument can be hinged at the upper end of the cylindrical support, and the support arms can be fixed to two ears (9. 10) on a sleeve on the cylindrical support.
Patent FR-2265462-A1 (FR)
Title: Atomiser pump with piston and spring-loaded opposed member - has spring-loaded outlet valve opened by pre-determined depression of piston
IPC: B05B11/00
Filed: 1975-03-26
Abstract: The pump is of the type having a cylinder with manually operated piston, the volume on one side of which is variable against spring pressure acting on the opposed member, the piston being provided with a through-duct to an outlet nozzle containing a spring loaded normally closed valve. The valve opens in the direction of flow through the duct and a stationary element is provided in the cylinder which is so arranged that after the piston has been depressed by a predetermined amount, the valve is lifted off its seat and the fluid between the piston and the spring-loaded member is expelled through the nozzle.
Patent FR-2306037-A1 (FR)
Title: Composite rolls for rolling mills - using cast barrel with core formed by electroslag remelting
IPC: B21B27/00
Filed: 1975-04-01
Abstract: The mfr. of bimetallic rolls for a rolling mill, the roll consisting of an envelope made of one metal (I) and a shaft made in a second metal (II). The envelope, consisting of a barrel, is first made separately by a conventional process, and is then employed as part of a vertical mould used to make an integral shaft by en electroslag process. The barrel is pref. made by centrifugal casting, by moulding, or by electroslag remelting, whereas the shaft is pref. made complete with its two journals in a single electroslag remelting operation. The journals can be made either in their final form or finished by forging. An excellent bond is obtd. between the bareel and the shaft.
Patent FR-2305553-A1 (FR)
Title: Inflatable structure with main canvas fixed to ground - has inflatable tubular cavities acting as semi-rigid canvas support framework
IPC: E04H15/20
Filed: 1975-03-26
Abstract: The main canvas (1) is dome-shaped, with its rectangular base perimeter fixed to the ground. The semi-rigid framework holding up the canvas (1) is formed by a series of cavities filled with compressed air. The framework consists of two vertical hoops, and roof purlins in groups of four. Each cavity is tubular and is formed by folding back a strip of canvas onto itself and sealing the joint by a lengthwise soldered line. An inner lengthwise membranes divided the cavities into pairs of compartments. The air cavities of the hoops and purlins are inter connected, as are the air cavities of intermediate framework members.
Patent FR-2311636-A1 (FR)
Title: Wooden slat mfg. process - with ends fitted at centre and provided with clearance between outer portions
IPC: B27F1/16
Filed: 1975-04-28
Abstract: The process manufactures wooden slats with tapered joints in the ends to be fitted together. In the central slot (8) the portions of the male and female ends are fitted closely together (1, 2), whereas in the other slots a small space is left between the portions fitting together (9-12). The width of the central slot can be greater than the sum of the end ones (3, 4) and the free space left in the latter can be roughly 0.5mm. The slat can be divided along the centre line of the control slot, so as to form two thinner slats, joined together along the dividing line.
Patent FR-2311414-A1 (FR)
Title: Lead-acid battery plates and separator - have holes and recesses for active material and ridges divide plate into larger number of square recesses
Inventor: CHENAUX BERNARD
IPC: H01M50/463
Filed: 1975-05-14
Abstract: A set of plates and separators is used in lead-acid batteries. The plates (3, 4) and the separator (5) are part of a sub-assembly. The plates (3, 4) are made of lead and have holes (9). The separateor (5) has ridges (6) which make up square recesses on both sides of the separator. The thickness (e) of the ridge (6) is set by the required capacity and discharge capability of the battery. The separator is made of insulating material. The electrochemically active material (8) is contained by the recesses of the separator and the holes (9) of the plates.
Patent FR-2313809-A1 (FR)
Title: Frequency equaliser for electroacoustic recording - provides medium frequency range correction with choice of center frequency
IPC: H03G5/12
Filed: 1975-06-05
Abstract: The frequency equalising circuit for electro-acoustic recording consoles where there are several input channels provides medium frequency correction in a continuous rather than a stepped fashion, allowing choice of a center frequency which may be varied. The circuit has three basic stages, an input base and high frequency correction network, a middle frequency band comparator circuit and an aperiodic output stage. Both first and second stages include an operational amplifier, the first being fed from a conventional balanced or input network. The medium range stage has both a negative and a positive feedback loop, the latter including a deg.T' filter.
Patent FR-2346537-A1 (FR)
Title: Window shutter flap manipulator - has link formed of two straight sections pivoting on shutter and sliding component respectively
IPC: E05C17/14
Filed: 1975-06-20
Abstract: The equipment manipulates and locks window shutter flaps open or shut using manually operated links. Each shutter has a link pivoting on it at a fixed point (2) at one end, and on a sliding component at the other. This secures it in the fully-open position against the front of the building, the fully-shut one, and in numerous intermediate ones. The link can have two straight sections in the same plane, joined together at an angle of 40 deg.. The pivot point on the shutter can comprise a part fixed to the shutter and accommodating a vertical spindle for the link. The movable pivot point can comprise a vertical pin fitting in one of several holes in a horizontal supporting bar.
Patent FR-2321332-A1 (FR)
Title: Centrifugal grinding machine using tangential pressure jets - has replaceable jets to vary angle of discharge into grinding chamber
IPC: B02C19/06
Filed: 1975-08-18
Abstract: The centrifugal crusher uses jets tangential to the grinding chamber to inject compressed air or superheated steam to produce a swirling flow into which the material to be ground is introduced. Interchangeable jets (8) are used so that the angle of entry can be changed. The grinding chamber is enclosed by an inner wall (3) and an outer wall (7), and the ground material is discharged upwards at the central discharge members (23, 24). The jets (8) are fitted into holes (17) through the two walls, and the compressed air is fed between the walls for discharge through channels (9) through the jets, at an angle to their centre lines. Each jet is secured by a screw (14) passing through a tongue (12) on the end, engaging a hole tapped in the outer wall (7).
Patent FR-2282752-A1 (FR)
IPC: G11B15/46
Filed: 1975-08-19
Abstract: A divider for an electronic timepiece comprises a multistage divider circuit having a plurality of 1/2 dividing stages connected in cascade. Logic circuitry connected to the first and last stages develops a preselected number of pulse signals smaller in number than the dividing number of the divider circuit to effect selective stopping of the counting of only one input signal pulse applied to the divider circuit to thereby obtain fine adjustment of the final output signal pulses.
Patent FR-2323975-A1 (FR)
Title: Firing pin for shotgun or similar firearm - is supported on arm with clearance to prevent jamming and damage to tip
IPC: F41A19/13
Filed: 1975-09-11
Abstract: A shot gun or similarly operating firearm has a striker pin (2) which has a given play (J) in the direction of its travel, to prevent jamming and damage to the rounded tip (23) of the pin where the cartridge (C) is ejected from the breech (4). The pin is carried by a support arm (11) wanted between flanges on a spring loaded rod (1) underneath which is released when the trigger is pulled. The pin has a flange (22) one side of the arm and a nut (3) on the other side, the space between them giving the required play which allows the rounded tip of the striker pin to clear the rear face of the cartridge as it is swung clear for ejection.
Patent FR-2325102-A1 (FR)
Title: Sequential BCD-binary converter - comprises two cascaded circuits each with 4-bit register and associated coding matrix
Inventor: HOUDARD JEAN-PIERRE
IPC: H03M7/12
Filed: 1975-09-19
Abstract: The convertor ensures the conversion between a number expressed in binary or in binary coded decimal (BCD) and this number in (BCD) or in binary. The convertor contains as many cascade connected synchronous units, fed by the bit series of the number to be converted, as there are figures of this number expressed, in the decimal system. Each synchronous unit has a shift registar (10, 12) of capacity equal to four bits, a transcoding matrix being associated with each register. The number of bits to be converted are loaded into the shift registers series connected. The heavy weighted bits being first. Each matrix has four outputs in parallel connected to four paralleled inputs of the register associated respectively with the same weight.
Patent FR-2340683-A1 (FR)
Title: Collector for oyster broods - consists of parallelepiped frame of metal angle pieces in which are stacks of superimposed tiles with curved cross section
IPC: A01K61/54
Filed: 1976-02-12
Abstract: The collector consists of a parallelepiped-shaped fram (1) with metal angle pieces in which are inserted several stacks formed or rows of superimposed profiled tile. the bottom row of each stack rests on a bottom piece of the frame. Each tile (2) has a curved cross-section with its convex surface turned upwards. The tiles of one row rest directly on the tiles of the row underneath. Each row of tiles is held at the sides between four uprights (1a). The end tiles have corner notches. The lengthwise side of each tile (2) has three pairs of projections for fitting into a corresponding pair of projections on the adjacent side of an adjacent tile.
Patent FR-2345183-A1 (FR)
Title: Card dealer marking device - has square plate with mark rotated after cutting cards to point to each person in turn
IPC: A63F1/16
Filed: 1976-03-25
Abstract: The apparatus is used a memory aid to denote the turns of persons dealing cards. It has a square plate with the corners cut at an angle, one of these being marked with the word "Cut". The plate is mounted on a central pivot, a suction cup maintaining it on the surface of the table. Three feet under the plate form supports. The marked corner is initially in front of the person who is to cut the cards and the next person deals. On cutting the cards, the plate is rotated so that the mark is opposite the dealer.
Patent FR-2372256-A1 (FR)
Title: Weft carrier with an electronically operated gripper - to catch the weft and take it through the shed
IPC: D03D47/24
Filed: 1976-06-04
Abstract: On a shuttleless loom, the invention comprises a sley, on which is mounted a belt, driven at each end by a cog wheel. Two electromagnets are mounted in a groove in the belt. Two weft carriers have opposite poles, and when the belt turns, the magnets pull the carriers through the shed. The carriers draw the weft through the shed, being mounted on a special rail. Known devices for inserting weft include shuttles, lances and water jets. Such devices may lack speed or precision, and may not be capable of special weft effects. With this device, it is possible to insert weft of different colours and sizes, to create shaded fabrics, checks, and cloths of unusual design, swiftly and correctly.
Patent FR-2355728-A1 (FR)
Title: Liquid container closure with fixed and pivotable sections - with lock for holding pivotable section in bent position
IPC: B65D47/06
Filed: 1976-06-22
Abstract: Liq. container closure, pref. made of polyethylene or polypropylene, comprises a fixed section, and a pivotable tubular section forming an actuator. The pivotable section is integral with the fixed section which has a locking element for holding the pivotable section in a bent position. Pref. the pivotable section has an oval or lenticular internal cross-section, and on its side lying in the direction of pivoting is a thicker wall with a flat external profile, confined to the area above the point of bending. The fixed section pref. has in the region of attachment of the pivotable section a projection which fixes the point of bending of the pivotable section. The closure is easy to mfr. and allows a provision of large dispensing openings.
Patent FR-2367261-A1 (FR)
Title: Rotary drum dryer for agricultural products - has three concentric tubes with hot gas generator permanently lined by low alumina bricks
IPC: F26B23/02
Filed: 1976-10-05
Abstract: The rotary-drum type drier has three coaxial tubes in which the products to be dried circulate in succession and through which a current of hot gas passes, typically produced by a burner flame. The hot gas generation furnace has a combustion chamber large enough to allow it to be permanently lined with bricks of low alumina content. At the chamber outlet is a narrowed throat ensuring complete homogeneity of the hot emergent gases. The air drawn in from the outside to supply the furnace can be passed through a passage above the combustion chamber forming the furnace vault. This both cools the vault and heats the combustion air.