baber/WOPTO huggingface dataset:
Patent FR-2252871-A1 (FR)
Title: Epitaxial deposition from a liq. - on a series of monocrystalline substrates e.g. gallium phosphide
IPC: C30B19/06
Filed: 1973-11-29
Abstract: High temp. epitaxial deposition on semiconductor substrates starting from a material in the liq. phase, by arranging the substrates in an enclosure subjected to thermal radiation from a furnace, injecting the liq. phase material previously placed in a reservoir into the enclosure via an interconnecting channel and after filling the enclosure, proceeding to the conventional operations of epitaxy and cooling. Enables a large number of substrates to be treated simultaneously in an appts. in which there is no relative motion between the reservoir and the substrate and which is well adapted for industrial use.
Patent FR-2253207-A1 (FR)
Title: Electronic reverberation time meter for building - records time elapsed between two threshold acoustic levels
IPC: G01H7/00
Filed: 1973-11-30
Abstract: The apparatus for measuring the acoustic reverberation time of a building comprises means of treating an electrical signal representing the effective value of an acoustic signal of decreasing intensity. The time elapsed between the instant when the electrical signal reaches a first pre-determined threshold value and the instant when it reaches a second pre-determined threshold value is measured by means of a time base connected to a frequency divider and a pulse counter. The elapsed time is displaced instantaneously in digital form, and the display includes a device for selecting the value of the difference between the two threshold levels. The system includes selection and adjustment elements for providing theoretical agreement.
Patent FR-2288469-A1 (FR)
Title: Built-up drum for meat sepg machine - for recovering max. amt. of meat from animal carcasses and rejecting bones
IPC: A22C17/04
Filed: 1974-03-22
Abstract: Rotary drum is intended for use in a machine for sepg. meat from a mixt. of pounded meat and fones to recover the maxt. amt. of edible meat from the animal carcasses whilst eliminating the fragments of the bone and cartillage. The sepg. drum is used in association with a pressure blade, at the level of the axis of the drum; it is also associated with another blade which forms, with the periphery of the drum, a kind of hopper with a progressively decreasing section up to the very narrow passage between the blade and the drum. The latter is fitted with slots and reliefs. The pounded meat is placed inside and the rotation of the drum with its surface reliefs, together with the simple friction of the drum elements, force the mixt. towards the zone of reduced section; the meat passes through the slots in the drum while the bone etc. are evacuated transversely by the helicoidal pattern of the reliefs. The drum itself is made up from a stack of a large number of annular discs, held firmly together by tie-rods. The slots for the passage of the meat are obtd. by interposing distance piece washers between two adjacent discs; each of the latter has projection on its periphery. The drum is rigid and robust. In the case of accidents, its modular construction enables repairs to be effected quickly by replacing the damaged discs alone thus reducing the time the macine is out of action, and the cost of repairs.
Patent FR-2266927-A1 (FR)
Title: Wall-mounted display board - has edges of glass and advertising sheet held by rails on panel
IPC: G09F15/00
Filed: 1974-04-03
Abstract: The display board comprises a rigid rectangular sheet provided at the rear and along each edge with a frame for supporting the sheet from the wall. The front face of the sheet is provided at the top and bottom with profiled rails, each of which has a flat face screwed to the sheet to form slots for locating the top and bottom edges of an advertising sheet and glass panel slid between the rails. Each of the latter has a stepped profile, with two parallel surfaces joined by a perpendicular section, the height of which is approximately equal to the thickness of the.
Patent FR-2267885-A1 (FR)
Title: Printing machine adjusting mechanism - has control transducer responsive to paper thickness detector feelers
IPC: B41J7/92
Filed: 1974-04-17
Abstract: The machine comprises two parts moving in relation to each other, one with hammers printin the characters, while the paper passes between them. Feelers (8)mounted on one of the parts move in relation to it and tend to press the paper (5) against the other part (1). A tranducer (10) sensitive to the feeler movement transforms them into a proportional electrical signal. The transfucer can be of the type emitting a signal whose polarity depends on the direction of feeler movement, and it can consist of a magnetic resistant detector working with a ferrous finger solidly attached to the feelers.
Patent FR-2267908-A1 (FR)
Title: Rear car seat safety device for children - is curtain unrolled from below front of rear seat and held by straps
IPC: B60R21/00
Filed: 1974-04-17
Abstract: There is a curtain (2) between the front and rear seats of a car. This curtain can be a rectangular piece of strong fabric. At its lower part this curtain is fixed to a horizontal shaft (5) which turns on brackets (6) fitted to the rear seat and slightly below the seat squab. The curtain rises to about the height of the top of the front seat and is held by straps (8) fixed to the roof, rain gutters or central supports. The shaft (5) can be fitted with a return spring to give automatic stowage of the curtain when not in use. The upper edge of the curtain carries fixings (11) for the support straps.
Patent FR-2273675-A1 (FR)
Title: Method to produce uneven structured patterns - uses highly viscous coatings and involves the use of pattern forming rollers
IPC: B05C17/02
Filed: 1974-06-06
Abstract: A method to produce uneven structured patterns involves the coating of the object to be patterned with a highly viscous material and the subsequent rolling and rerolling of the article through or against a forming roller bearing the pattern to be produced as a series of unbroken and/or broken lines and/or dotted lines such that the curved, bowed, relief pattern elements are uniformly spaced. The highly viscous material may also be added directly to the surface of the article being patterned during the patterning rolling process.
Patent FR-2246817-A1 (FR)
Title: Gas and oil fired central heating system - central station controls and selects large number of units
IPC: F24H1/00
Filed: 1974-10-04
Abstract: The control station used to regulate continuously the oil or gas burner loads in a central heating installation incorporates several hot water evaporators feeding one single common pipe where the temperature is kept constant within small margin of error this control centre has a programmed regulation device which, according to heat demand, switches on or off the number of evaporators needed, regulating the last one to be started as a function of the load while the others are controlled by their own thermostat and work pin motor driven valves fully open.
Patent FR-2292048-A1 (FR)
Title: Age-hardening aluminium alloy - has compsn maintaining high strength after final paint baking heat treatment
IPC: C22C21/16
Filed: 1974-11-20
Abstract: Age-hardenable Al alloy contg. in wt.% 1.2-1.9% Cu; 0.4-1.0% Mg; 0.3-0.8% Si; 0.01-0.16% V, pref. together with 0.05-0.5% Mn, 0.02-0.2% Cr; 0.02-0.2% Zr and 0.02-0.2% Ti, bal. Al and impurities. The alloy is hot and cold rolled into sheet and heat treated continuously at >450 degrees C for >10 sec. then subsequently coiled. The final product is then coated with paint and baked at 150-250 degrees C the material retainining its h igh strength after this final treatment. The sheet is free from stretcher strain marks, is readily coilable and has good deep drawing properties. It is used for car bodies, containers, rolling stock and structural members.
Patent FR-2302798-A1 (FR)
Title: Automatic rivetter for fixing contacts on PCBs - has moving claw which holds rivet in position during insertion drive and is actuated by cam mechanism
IPC: B21J15/10
Filed: 1975-03-04
Abstract: The automatic rivetting machine is suitable for fixing eyelets or contacts on PVBs and uses a moving claw (9) to hold the rivet (1) accurately in position during the primary insertion drive. The claw retracts as the rivet enters the card (2) hole (14) thus permitting full rivet penetration. The primary drive is effected by a vertically shaft (8, 11) which is actuated by a rotating cam (12), and rivet deformation by a rivetter (5) of which the bit (4) locates below and acts in axial opposition to the primary drive shaft (3). The rivetting cycle begins with the feeding of an individual rivet into the claw whence the primary drive, during which the claw retracts, takes place. The rivetting drive then ensues followed by the return of the claw to the start position. The card may be mounted on elastic support guides (13) which ensure full rivet penetration; and rivetting and primary drive tools may act simultaneously.
Patent FR-2280784-A1 (FR)
Title: Increasing the permeability of subterranean formations - by fracturing and injecting an alumina-based propping agent
IPC: C09K8/80
Filed: 1975-04-30
Abstract: The permeability of subterranean formations penetrated by wells is improved by (a) injecting a fracturing fluid into the formation, and (b) injecting into the fractures a fluid contg. an alumina-based propping agent with a particle dia. of >=0.54mm. so as to form a compacted multilayer of the propping agent. Unlike conventional propping agents (e.g. sand), the alumina-based partiles do not become ground down when exposed to high pressures (up to 108Pa). The propping agent pref. contains 60-99% alumina (esp. alpha-Al2O3) and 0.1-40% silica, and has an apparent density of >=2.8 (esp. 3,4-3.9)g/cm3. The fracturing pressure is pref. >=5.6 x 107 Pa.
Patent FR-2276975-A1 (FR)
Title: Automatic railway coupling head aligner - has pivotal load arms for rods attached to transverse torsion bar
Inventor: ARCHIPOW PETR FEDOROWITSCH
IPC: B61F5/42
Filed: 1975-06-16
Abstract: There is a cradle (10) pivoted between supports (12), (14) of a mounting (7) on the bogie headstock. There are two pivots (11), (13) with pegs (18) on which swivel coupling rods (19), in turn pivoted to a torsion bar (21) on the bogie headstock (17), running perpendicular to the longitudinal axis (23). The ends (20) are cranked in opposite directions to a desired angle, according to the preconstraint required. The torsion bar is fixed rigidly to the bogie headstock. On the end of the bogie headstock are the force applying ends of arms (18) fixed to the cradle, the arms being in the form of plates.
Patent FR-2315279-A1 (FR)
Title: Water-soluble aminoalkanoamide salts of acetylsalicylic acid - with anti-inflammatory, analgesic and antipyretic activity (BE-16.3.76)
IPC: A61P25/04
Filed: 1975-06-26
Abstract: Acetylsalicylic acid salts of formula (I) are new: (where R1 and R2 are H or 1-4C alkyl or hydroxyalkyl; R3 and R4 are H or 1-4C alkyl, or CR3R4 is a 5- or 6-membered satd. ring, or one of R3 and R4 and one of R1 and R2 together complete a 5- or 6-membered heterocyclic ring; R5 and R6 are H or 1-4C alkyl or hydroxyalkyl; n =0 or 1). Cpds. (I) have the same anti-inflammatory analgesic and antipyretic activity as acetylsalicylic acid (II), while having a higher water-solubility and a lower acid strength, and having the same acute toxicity, they can be administered by injection and are well tolerated by the veins and muscles. Cpds (I) can be prepd. by reacting (II) with R1R2N-(CH2)n-CR3R4-CONR5R6, either in an anhydrous organic solvent (e.g. MeOH, EtOH, i-PrOH acetone or dimethoxyethane), or in an aq. medium followed by concn. and freeze-drying.
Patent FR-2316496-A1 (FR)
Title: High pressing gas tight plug assembly - has plug seating in cylindrical seal surrounded by retention yoke
Inventor: FIGUIERE PIERRE
IPC: F16J15/08
Filed: 1975-07-01
Abstract: A container (1) has a port (3) with a rounded edge (17) in its wall and has a high internal pressure. The plug consists of three parts, an outer retention yoke (9) a seal section (5) and a plug (19). The seal section is cylindrical, has a central passage (7) and terminates on the container side in a sharp circular edge (15) resulting from the intersection of internal (11) and external (13) conical faces. A complementary conical surface (21) is machined on the plug mating face. When assembled, the sharp edge of the seal contacts the rounded shoulder of the hole and the pressure inside the container forces the plug into the seal. This force expands the seal edge and improves the sealing effect. If any leaks should occur, the central passage prevents pressure building up on the outer face of the plug (19) and consequent reduction of the force expanding the lip.
Patent FR-2318231-A1 (FR)
Title: Vacuum refining apparatus - having a column of trays provided with overflow conduits encompassed by heater and induction coil
IPC: C22B25/08
Filed: 1975-07-17
Abstract: Vacuum refining apparatus comprises a cylindrical vacuum chamber accommodating vertically disposed trays each having a central hole, side walls, and an overflow conduit. A heater encompasses the column of trays and the outlet of an overflow conduit is in communication with the underlying tray. An induction coil surrounds the column and in use establishes a magnetic field under whose effect molten metal in the trays climbs to the level of the overflow conduits. Impurities from the metal are received in a condenser located under the column. Used for continuous purification of tin of lead and bismuth. The apparatus provides an increased open metal surface and the overall dimensions of the apparatus are reduced with an increase in the degree of purification.
Patent FR-2321267-A1 (FR)
Title: Club foot treatment appts. - has soles pivoting at centre with rear leg and front foot sections angularly adjustable
IPC: A61F5/01
Filed: 1975-08-21
Abstract: The equipment is for the treatment of club feet, having tilting soles, the interval between which is adjustable, for straightening and constricting malformed feet. the soles (10) pivot at the centre, in the tarsal-metatarsal joint area, and each has a rear section (11) for securing to the inner and outer surfaces of the leg, and a front one (12) to secure the forward part of the foot in place and stationary. By progressive modification of the angle between the two parts the lesions in the forward part of the foot are reduced at the same time as it is straightened. the device may be locked at various angular position.
Patent FR-2325070-A1 (FR)
Title: Handle for continuous focus control of lenses - with lever coupled to lens focusing ring and operated by squeezing pistol grip handle
IPC: G03B3/02
Filed: 1975-09-18
Abstract: A handle incorporates an operating mechanism for a rotatable focusing ring, esp. for telephoto lenses. The body of the handle, e.g. of the pistol-grip type, contains a lever hinged n the body so that it can be gripped together with the body using only one hand. The lever is coupled to the focusing ring by a connecting member. The lever pref. has a curved portion and the connecting member is pref. an arm pivoted on the free end of the curved portion. An operating mechanism for a camera shutter may also be incorporated.
Patent FR-2287258-A1 (FR)
Title: Filter cake scrape-off device - for plate filter presses
IPC: B01D25/32
Filed: 1975-10-06
Abstract: In a plate filter press having a frame in which movable plates covered by a filter cloth are located, a device for scraping the filter cake off the cloths is provided, which device has at least two scrapers which can be moved along the press and moved up and down in a direction parallel to the filter surface between the plates of the opened press. The novelty lies in that the scrapers can be moved by a pivot and lever arrangement through a distance at least as great as the thickness of a filter plate in a direction parallel to the longitudinal axis of the press. The scraper is effective for filter cakes of different adhesive and cohesive characteristics, giving efficient removal of filter cake without interruption to the filter cake removal process.
Patent FR-2328813-A1 (FR)
Title: External thermal insulation for very high walls - using large foamed phenolic resin panels held by acrylic adhesive and pegs
Inventor: BUCHE SERGE
IPC: E04B1/76
Filed: 1975-10-23
Abstract: The external surface of a wall a great height is thermally insulated, the novelty being (a) the use of foamed phenolic resin panels, 3-8cm. thick and density 40-80kg/m3; (b) the panels are fixed on the wall by an adhesive and pegs made of a thermal insulant; (c) the outer surface of the panels is given an undercoat in which the glass mat is inserted, then an outer coat. When the wall is to be painted, the adhesive is pref. an acrylic; 3-7 pegs are used per m2 of panel; and silicone paper is pref. used on the joints between the panels before the undercoat, which is pref. an acrylic. The insulation is esp. for use on walls with a height >6 meters, using high strength panels with thermal conductivity 0.032-0.036kcal/m.h. degrees C.
Patent FR-2340917-A1 (FR)
Title: Load bearing light weight insulating concrete - comprising cement, fine insulant and hydrophobic additive, subsequently mixed with coarse insulant
IPC: C04B28/02
Filed: 1976-02-12
Abstract: Load bearing, impermeable insulating concrete is made by first preparing a mortar, from a mixt. of a hydraulic cement with fine (0.1-5mm) insulating material and a hydrophobic additive, then introducing coarser particles (3-25 mm) of insulating material in a mixer. The insulating material is pref. expanded perlite, the hydrophobic material is magnesium stearate, and the coarser particles are expanded solist. Material made from the concrete exhibit good mechanical strength (60-80 kg/cm2 under compression,) and good thermal insulation properties, and are moisture impermeable.
Patent FR-2346560-A1 (FR)
Title: Rotary IC engine with cylindrical rotor - has sliding blades in rotor housed in elliptical casing with air cooling fins
IPC: F01C1/344
Filed: 1976-04-02
Abstract: The rotor (2) is equipped with four slots (2d) which are off centre and connected at the centre of the rotor to breather hole (2e). The slots are fitted with blades (3) capable of sliding in the slots. The rotor fits in an oval casing (4) equipped with air cooling fins (4f) and closed by bolted on end covers. The casing is fitted with an inlet valve (5) and an exhaust valve (6) respectively fitted in the location of the induction and exhaust part of the cycle. A spark plug (9) ensures combustion when the gases have been compressed.
Patent FR-2307423-A1 (FR)
Title: Repetition tone signal evaluation - prevents disturbance by limiting resonance frequency of frequency selective circuit through switching transistor
IPC: G08C19/14
Filed: 1976-04-08
Abstract: The step-by-step switching of a frequency-selective device, with a variable resonance frequency is, by the individual tone signals; a RESET signal is produced when the control signal is generated by an individual tone signal, is missing. Disturbing effects, which can be caused by very short individual tones of high voltage amplitude, can be avoided if, depending on each individual tone, another undelayed control signal is produced. This is used to limit the resonance voltage which may be generated in the frequency selective circuit (10). A voltage, derived from each single tone, controls the threshold unit (11) and is applied through a resistor (25) to the gate of a switching transistor (26). This sets the transistor to an internal resistance which limits the resonance frequency of the unit (10).
Patent FR-2307474-A1 (FR)
Title: Ice-cream stick applicator - with conveyor for single sticks and shaft with clamps swivelling and releasing sticks in moulds
Inventor: KNAUF KARL OTTO
IPC: A23G9/26
Filed: 1976-04-16
Abstract: A machine for the automatic loading of ice cream sticks into the freezing moulds of lollipop ice cream machine includes a conveyor with recesses for the sticks which moves along under a magazine. When the number of sticks required for one row of radial moulds is ready, clamps grip the stick ends in pairs and swing them through 270 degrees. Release of the clamps then drops the sticks through funnels into their respective freezing moulds, filled with ice cream mass. This machine has the same capacity as a circular ice cream freezing machine and can be operated without strain by one person.
Patent FR-2904625-A1 (FR)
Title: Double base propellant filler, useful to produce gas and charge of rockets and rocket reactors, comprises lead salt to obtain plane/plateau in the logarithmic curve of combustion speed according to log pressure and nitrocellulose
IPC: C06B23/00
Filed: 1976-05-28
Abstract: Double base propellant filler comprises: a lead salt to obtain a plane or a plateau in the logarithmic curve of the combustion speed according to log pressure; and a nitrocellulose compound having crosslinking action containing alcoholic/ether groups (I). Double base propellant filler comprises a lead salt to obtain a plane or a plateau in the logarithmic curve of the combustion speed according to log pressure and a nitrocellulose compound having crosslinking action containing alcoholic/ether groups (I) of formula -N-CH 2-OR in its molecular structure. R : H or 1-8C alkyl. An independent claim is included for a flowing double base propellant comprising a mixture of lead salicylate and lead beta -resorcylate exerting a plateau effect (giving as in the log curve of the combustion speed according to the pressure log).
Patent FR-2353559-A1 (FR)
Title: (10)-Hydroxy-ajmalicine prepn. - by chemical oxidn. of ajmalicine
IPC: C07D491/22
Filed: 1976-05-31
Abstract: Prepn. of 10-hydroxy-ajmalicine (I) comprises chemical oxidn. of ajmalicine (II). Pref. the reaction is effected in 3 stages. The redn. of (II) to (III) is pref. effected with Na cyanoborohydride (CBH) in the presence of cF3COOH. Oxidn. of (III) is pref. effected with K nitrosodisulphonate (NDS), and redn. of (IV) is pref. effected with Na dithionite. The last two can be effected without isolating intermediate (IV). Cpd. (I) has cardiovascular activity. In an example, (II) was first reduced to 2,7-dihydro-ajmalicine, which is then oxidised with K-nitrosodisulphonate and reduced with Na dithionite to give (I).
Patent FR-2356794-A1 (FR)
Title: Actuating gear drive for window locking rods - has handle actuated gear and eccentric pinion engaging with toothed racks to increase rod travel
IPC: E05C9/04
Filed: 1976-06-29
Abstract: The closing mechanism for windows and doors has rods moving in opposite directions. These rods are connected to toothed racks sliding in a driving housing. Each rack is engaged with one gear of a gear wheel pair, one of the gears being actuated by a handle. The handle actuated gear wheel (9) drives pinion (16) held eccentrically on its shaft (13). The driven pinion (10) is arranged above the plane which contacts the teeth tops of the rack engaged with the driving gear (9). This pinion drives teeth which are on a higher level than those in the first rack.
Patent FR-2358321-A1 (FR)
Title: Air excluding storage barrel for wine - consists of wooden cask with collapsing plastics tank inside and bung in fixed front wall
IPC: B67D3/00
Filed: 1976-07-12
Abstract: The storage and drawing barrel consists essentially of a wooden cask in the classical style which has a fixed front wall (1) provided with a draw or bung (2). In this case, the rear wall (3) is removable and has a rod (5) engaging in a tube (4) fixed to the inside of the cask. Also inside the cask is placed a parallepiped plastic container (7), such as those used to transport wine, resting on supports (6). The outlet from this container is connected by a supple pipe (8) to the draw tap. The container collapses as wine is removed, thus preventing air being trapped, and it can be thrown away when empty, thus avoiding cleaning of the cask. Refrigeration equipment can also be incorporated inside the cask.