baber/WOPTO huggingface dataset:
Patent FR-2241820-A1 (FR)
Title: Dead zone temperature regulating system - for homes and offices is used to avoid instability problems
IPC: G05D23/24
Filed: 1974-08-22
Abstract: Temperature regulating system consists of a temperature transmitter connected to a regulator. The regulator is used to control two regulated devices for heating and cooling room. The regulator acts on the regulated devices via a binary counter. The binary counter, via a resistance arrangement incorporated in a reaction circuit, maintains the regulator in an inactive state during a temperature interval when no heat or cold contribution is provided. This arrangement avoids hunting between the heating and cooling condition with consequent saving in fuel. The dead band prevents severe fluctuation in temperature from being produced over the dead band.
Patent FR-2296505-A1 (FR)
Title: Pump and head for blending and spraying resin - easy to set up and clean and provide with three wave control valve
IPC: B01F5/06
Filed: 1974-12-31
Abstract: Equipment for injecting or spraying synthetic resins by dispensing via a mixing nozzle two reagent mixtures drawn in fixed proportions at the same pressure by twin double action pumps operating on the respective reagent feed lines by the action of a common driving ram. The mixing head is connected via 3-way valves to supplies of a rinse solvent and of compressed air which can enter the head through each supply line. Esp. suitable for building up sprayed coatings by applying successive coatings. Will maintain constant proportions of prepared supply reagents in the sprayed material regardless of the rate of discharge. Readily prepared and cleaned, Negligible risk of internal backmixing of the reagents, due to ease of rinsing.
Patent FR-2302441-A1 (FR)
Title: Hollow rivet with hexagonal hole - has internal thread tapped in smaller dia cylindrical shank
Inventor: MEILLAT GERARD
IPC: F16B37/06
Filed: 1975-02-27
Abstract: The rivet ends with a circular flange (2) which is formed onto the shank (5) of the rivet. The shank is cylindrical while the flange has a hexagonal hole. The rivet is fixed by deforming the metal by compression to form a lip (8) behind the flanage. The recess (3) in the head is hexagonal and the free end of the rivet is tapped with a female thread. A stud or sets crew may be fixed to the rivet from either side as the cylindrical bore diameter is smaller than the hexagon dimensions. Some components may also be prevented from rotating by fitting a hexagonal stop into the hexagonal recess.
Patent FR-2267460-A1 (FR)
Title: Hydraulic radial piston engine with eccentric ported shaft - has piston guide bearings of greater diameter than ported shaft
IPC: F04B1/107
Filed: 1975-04-11
Abstract: The engine is of the type having a cylinder block (1) with radial pistons (7), rotatable on a ported shaft (4), and a piston guide (11, 13, 14) imparting a reciprocating motion to the pistons and rotating eccentrically relative to the cylinder block on bearings (17) on either side of the ported shaft. The bearing surfaces of the two bearings (17) have the same diameter (D1) this diameter being greater than the diameter (Ds) of the ported shaft (4). The difference in diameters is preferably at least equal to twice the eccentricity (E). The bearing surface of at least one of the bearings (17) may be formed on a ring (17) with eccentric bore fitted on a common shaft (4).
Patent FR-2309078-A1 (FR)
Title: Clock signal reconstituting circuit - for binary coded transmission is fitted with transition detector and phase control loop for local clock
Inventor: ABRAHAM MICHEL
IPC: G11B20/16
Filed: 1975-04-25
Abstract: The circuit for reconstituting the clock signal for a binary coded transmission having a given clock frequency uses a transition detector, providing a pulse in response to each signal transition. A slave loop controls the phase of a local clock having the same frequency as the block frequency of the transmission, the loop including a comparator for comparing the phase of the transition pulses with the phase of the local clock, to provide two sets of advance and delay pulses respectively. The pulses from the comparator are supplied to phase control means for the local clock, using two stochastic filters.
Patent FR-2312422-A1 (FR)
Title: Package wheel delivers measured quantity of powder - has two additional inner end walls over and under which dispensed material passes
IPC: B65D83/06
Filed: 1975-05-30
Abstract: The box is folded from a single sheet to form the normal sides, base and top, and also two additional partitions (15, 18) which are set in from one end (4). An opening (13) is provided in the end (4), the adjacent partition (15) has a gap at the bottom and the other partition a gap at the top. The package is used by tilting it as if to pour its contents from the opening. A certain amount passes over the gap above the inner partition. The container is returned to an upright position and the powder falls to the lower gap. Further tilting pours this first quantity out through the opening, and brings a second quantity over the top gap.
Patent FR-2315404-A1 (FR)
Title: Trailer coupling with transverse pivot - has longitudinal pivot flanked by two vertical in-line pivots at level above transverse pivot
IPC: B60D1/00
Filed: 1975-06-23
Abstract: Trailer coupling in which a first element (25, 16) is pivotably carried on by horizontal transverse pivot shaft of the first vehicle and a second element (11E) is secured to the trailing vehicle, and in which first (24, 23A) and second pivot means (20 B, 20A) are provided on the first element at right angles to one another in a plane at right angles to, and at a level above, the transverse shaft. The first pivot means consist of a central horizontal spindle (23A) carrying a bearing (24). The second pivot means are provided with a coupling (19, 31) to the second element (11E) and consist of bearings (20B) on spindles (20A) arranged in vertical line on either side of the first bearing (24).
Patent FR-2318763-A1 (FR)
Title: Collapsible road warning sign having rectangular body - with unfolding reflective triangle and vertically extending frame carrying vertical rotating reflective plates driven by electric motor
IPC: B60Q7/00
Filed: 1975-07-24
Abstract: The road warning sign (1) collapses into a rectangular package. The front face carries a reflective triangle with folding sides (9) and a vertical stripe (12) is positioned inside the triangle. Supporting feet are positioned at the sides (23) of the triangle and extend at front and rear from the centre of the based of the sign (13). An array of rotating vertical plates (16) have a half white and half reflective covering and are mounted on a frame (14) which pulls out of the sign by a handle (15). The plates are driven by an electric motor which operates intermittently to show the white then reflective surfaces.
Patent FR-2318988-A1 (FR)
Title: Travelling inverted U-section shutter for tunnels - has retractable kicker which is fixed to wall base by pin-jointed tie plate
IPC: E04G11/02
Filed: 1975-07-23
Abstract: Travelling inverted 'U' section shuttering for reinforced concrete tunnels has a retractable longitudinal strip or plinth at the base of the vertical members secured by pins is retracted by swinging up a hand lever from the horizontal to the vertical. The plinth permits the shutter to be struck and lowered onto rollers, and the design avoids taking the weight of the shutter on the tie plate pins. The plinth may be an angle iron with an edge rebate giving positive alignment with the base of the uprights. The tie plate may be pinned to two plates which are welded to the plinth and the base, and may incorporate the hand lever. The plinth may be locked by a cotter in alternate plates holes.
Patent FR-2328049-A1 (FR)
Title: Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption
Inventor: KARINTHI PIERRE
IPC: C22B7/00
Filed: 1975-10-15
Abstract: Metal is made in a second melting process in a shaft furnace, starting from a metal charge, e.g. molten iron made in a cupola and the gas formed by O2 and coke is used to preheat the metal charge. The novelty is that the metal charge is preheated to 200-1540 degrees C, using both the heat and the latent heat in the gas; the O2 in the air is adjusted so Q.Cg D.Cm, where Q is the gas flow and Cg its specific heat; D is the rate of adding the metal charge and Cm its specific heat. Pure O2 may be used and may contain CH4 so the preheating gas contains N2, CO, H2O and H2. The conservation of coke in melting cast iron, but the process may be applied to melting ferro-alloys, Pb or Zn scrap.
Patent FR-2330079-A1 (FR)
Title: Monitoring system of discrete devices or switches - transmits relevant information of separate programmed multiple purpose computer and has groups of contacts
IPC: B21D7/08
Filed: 1975-10-28
Abstract: Monitoring system of discrete devices or switches transmits relevant information to separate programmed multipurpose computer and has groups of contacts. Each group of discrete devices can be in a normal state or in a state deviating from the normal state. An interrogation signal is produced which triggers the determination of the state of the devices. Each discrete device is simultaneously scanned. The operator issues a common via a known input device. The monitoring programe is thus stored in the memory of the computer which triggers the scanner via the control line. The scanner commences automatically the sequence of monitoring.
Patent FR-2330363-A1 (FR)
Title: Bath tub with cut:away sides for invalids - has sprinkler rail with removable side wall section and rot:proof covering attached to shaped tub floor
IPC: A47K3/00
Filed: 1975-11-10
Abstract: The device allows one to take a shower while lying or sitting in a bath tub whose sides are partly cut away. This permits access to the tub by elderly or infirm persons without the necessity of climbing over the bath tub sides. The bottom is shaped to accommodate a person in a half-lying position and a rot-proof floor covering is attached to it. Two sprinkler rails are arranged parallel to the rise of the tub loor and the supplied by a pre-set supply of warm water. They stretch the length of the tub used by the occupant. A removable sliding wall section is positioned in the side cut-away section to prevent splashing.
Patent FR-2331877-A1 (FR)
Title: Sensitive electromagnetic relay with two iron cores - has permanent magnet between cores and has control coil forming flat structure
Inventor: ROUX EDOUARD LE
IPC: H01H71/32
Filed: 1975-11-13
Abstract: The relay apparatus has a magnetic shunt and an armature which interacts with the two soft iron core pieces and a control coil. the two soft iron pieces (2, 3) are flat, U-shaped components. They hold the permanent magnet (1) between them at the base of the 'U' and the magnetic shunt (7) is accommodated at one side, with a spacer disc (12) at the other side. A flat structure is produced, with the movable armature (6) resting in its normal position on a limb of each of the soft iron pieces.
Patent FR-2290998-A1 (FR)
Title: Spanner with opposed hinged ring heads with gripping dogs - has curved dog haunches facing same way and morticed dog stops
IPC: B25B13/04
Filed: 1975-11-13
Abstract: A spanner with opposed hinged polygonal ring heads (3) which act in conjunction with curved face gripping dog handle extension (11) to grip a subject nut; is designed to prevent user injury due to hand-levering against the sharp noses of the gripping dogs. Hence these dogs have their curved haunches (11a) facing in the same direction, is facing the direction in which hand-lever-age force would be applied. Preferably the ring heads also form a yoke for connection onto the handle shaft and, thus, form stops (13) limiting the inter-displacement of the dog (11) and the ring (3).
Patent FR-2297928-A1 (FR)
Title: Cathodic protection of metal tanks - where sacrificial anode and disc resistor are pressed into metal cap screwed into tank (BE090776)
IPC: C23F13/02
Filed: 1976-01-19
Abstract: Resistance anode assembly, esp. for use in a metal tank, has a cylindrical anode with a flat top, contg. a free central core rod or wire, the end of the anode being pressed into the tubular part of a metal cap, the outside surface of the cap being designed so that it can be fixed in a hole in the tank; a flat disc resistor is located between the top of the anode and the inside bottom surface of the cap, electrical and mechanical contact being ensured by a spring fixed to the end of the core rod or wire; and an insulating bush is located between the tubular part of the cap and both the anode and the resistor so no short circuits can occur, the components being assembled by an interference fit.
Patent FR-2340547-A1 (FR)
Title: Analysing unit for documents or fingerprints - has electrically conductive detector arranged in formal pattern
Inventor: CANNISTRARO M
IPC: A61B5/117
Filed: 1976-02-09
Abstract: The analysing unit is used for verifying documents etc. characterised by given markings, or for checking fingerprints, e.g. to operate an access control. It has a detector on which the document or a finger is placed, with a number of detection elements arranged in a given configuration to provide signals defining the markings or the finger prints. The detector can be connected to an analysing circuit, controlled by a scanning circuit, via a level circuit. The detection elements may be surface conductors aligned along intersecting diagonal lines and formed as an integrated circuit. The analysing circuit may have a diode for each of the surface contacts with the lines of diodes connected via multiplexing means to the scanning circuit.
Patent FR-2348112-A1 (FR)
Title: Collapsible packaging box suitable for return to sender - has sidewalls with transverse locking devices held upright by base and cover
IPC: B65D6/22
Filed: 1976-04-15
Abstract: The collapsible case has two opposite sidewalls with transverse locking devices engaging with the two opposite walls. The four walls are held upright by other devices provided on base and cover. The base (1) and the cover can have peripheral flanges (1a) facing towards each other, and four sidewalls (3-6) whose vertical edges are bent into a U-shape. Two opposite walls have vertical guides (7-10) into which the edges of the other two slide. The walls without the guides can have their edges bearing against the outside of the other two to hold them in place. The width of the walls with guides can be such as to allow them to fit closely inside base and cover.
Patent FR-2362521-A1 (FR)
Title: Brushless DC motor with permanent magnet rotor - has electromagnetic commutator switched by coupling and decoupling transformer windings
IPC: H02K29/12
Filed: 1976-08-16
Abstract: The commutator includes a stationary transformer including a primary winding and secondary windings equal in number to the number of stator windings. The primary and secondary windings may be in the form of conductive patterns on printed circuit boards. An oscillator supplies an RF signal to the primary. An apertured shield located between the primary and secondary windings rotates with the rotor and causes the secondary windings to be energized in sequence. Switches, which may be transistors associated with the stator windings, are closed and opened in sequence, in response to energization and deenergization of the secondary windings, in order to energize and deenergize the stator windings in sequence. The position of the secondary windings may be adjusted, or an auxiliary set of secondary windings may be used, to reverse the rotor.
Patent FR-2371848-A1 (FR)
Title: Surface heating round metal parts with complex profile - where part is rotated inside shaped inductor fitted with flux concentrators
Inventor: REBOUX JEAN
IPC: H05B6/02
Filed: 1976-09-10
Abstract: Inductor for the unifrom surface heating of a round metal piece with a dia. which varies continuously and/or discontinuously, and is continuously rotated on its axis of symmetry inside the inductor. The inductor possesses several pairs of conductors which are parallel with the surface of the piece and fed with a.c. The conductors are fitted with cores consists of U-shaped stacks of ferromagnetic laminations which surround the conductors on three sides. At least two pairs of conductors are located symmetrically round the workpiece, and the ends of the legs of each U-core follow the profile of the workpiece. Several cores are fitted on each conductor, and the cores are staggered so that the cores on two adjacent conductors cover all the surface to be heated during rotation of the workpiece. The conductors are pref. connected in parallel. Used e.g. for the surface heating of ferromagnetic workpiece which is then quenched, the inductor being more efficient than conventional inductors so heating is more rapid.
Patent FR-2358928-A1 (FR)
Title: Perfectionnements aux broyeurs refrigeres a arbre horizontal
IPC: B02C17/16
Filed: 1976-12-01
Abstract: L'invention concerne les broyeurs du type comprenant une chambre de broyage traversée par un arbre horizontal sur lequel sont montés des disques ou autres éléments agitateurs, et contenant des corps de broyage Selon l'invention, la chemise de cette chambre de broyage se trouve montée de façon flottante, c'est-à-dire est réunie par une extrémité à la partie fixe de la machine et est libre à l'autre extrémité. De cette façon, elle est capable d'absorber les différences de dilatation pouvant se produire entre l'intérieur de la chambre de broyage et sa partie extérieure.
Patent FR-2374260-A1 (FR)
Title: Oxidn. of hydrocarbon components of lean natural gases - by passage with oxygen or air through plasma jet, forming water and carbon di:oxide and/or mon:oxide
Inventor: CSERNAVOLGYI LASZLO
IPC: B01J12/00
Filed: 1976-12-14
Abstract: Oxidn. of the hydrocarbon components of lean natural gas (e.g. contg. 30% CH4 and 60% CO2) is carried out by passing the gas together with O2 and/or air through a plasma jet (opt. formed by the gas itself) so that the hydrocarbons are converted to H2O and CO and/or CO2.
Patent FR-2336235-A1 (FR)
Title: Punching cuts into a soft plastics foam slab - includes selectively compressing the slab in a zone parallel to and spaced from the cut (NL 24.6.77)
Inventor: PRUTSCH ANTON
IPC: B26D3/28
Filed: 1976-12-22
Abstract: In a process of punching cuts into slabs of soft plastics foam, the slab is compressed in a zone parallel to, and spaced from, the place where the cut is to be made. It is thus compressed in that zone more strongly than very near the cut. The depth of the cut can then be accurately controlled where the cut is not to pass right through the entire thickness of the slab. The compression exerted increases within a zone parallel to the place of cutting, reaching a max. in the middle between 2 adjacent cuts. The slab may be pre-compressed, in that parallel zone, before a punching tool is applied. The compression may be continuously increased, in the parallel zone, during the punching operation. In order to make equidistant cuts in a slab, esp. of polyurethane soft foam, several parallel zones are simultaneously pre-compressed; the punching tools are applied and pressed down; and the slab is synchronously further compressed.
Patent FR-2336490-A1 (FR)
Title: Copper-silver-tin-indium dental alloy - for mixing with mercury giving a nontarnishable strong dental amalgam
IPC: A61K6/847
Filed: 1976-12-22
Abstract: A dental alloy which forms an amalgam with Hg, has the compn. >=20 (>=40) wt.% Ag, 20-50 (20-40) wt.% Sn 9.5-50 (10-35) wt.% Cu and >=0.5 (5-10) wt.% In. The alloy forms an amalgam when mixed in powder form with Hg giving a prod. which has excellent physical and mechanical properties and is resistant to tarnish. Specific compsns. comprise 50 wt.% Ag, 20-30 wt.% Sn, 11-20 wt.% Cu, 3-6 wt.% In, or 60 wt.% Ag, 22 wt.% Sn, 13 wt.% Cu, 5 wt.% In. On mixing the dental alloy in powder form with Hg the compsn. is 18-35 wt.% Ag, 11-16 wt.% Sn, 6-15 wt.% Cu, 1-5 wt.% In, balance Hg.
Patent FR-2380669-A1 (FR)
Title: Regulator for phase control of thyristor converter - has variable slope and amplitude sawtooth waveform generator
Inventor: ERMOLOVICH EDUARD STANISLALOVI
IPC: H02M7/162
Filed: 1977-02-14
Abstract: In a closed loop control system for phase control of a converter it is normal to work at a gain setting which is a max. for the worst possible conditions in order to avoid instability. This means that for a large part of the operating range the equipment is not working in the best possible state leading to low response and poor utilisation of circuits. The condition is overcome by introducing automatically variable gain into the circuit. It is achieved by connecting a second input (10) to the saw-tooth waveform generator (9) which is taken from a function converter (11) connected in parallel with the output of the error amplifier (2). The function generator adjusts the amplitude and steepness of the sawtooth wave thus changing the ratio between error and firing angle, and hence the gain of that part of the circuit, as a function of amplifier output.
Patent FR-2392831-A1 (FR)
Title: Binder for magazines or periodicals - consists of curved spring steel strip with double grip formed by cut-out tongues and deformed edges
IPC: B42F9/00
Filed: 1977-02-21
Abstract: A binder, for magazines or journals which are published in instalments, is made from a strip of spring steel (1). Two tongues (2) are formed by cutting around three sides of a square and folding the metal along the fourth side. The tongues (2) then exert a firm grip on the stack of magazines which are to be bound. The strip is then bent to form an arc of 90 deg. with arms extending radially inwards. The curved ends of these arms provide an additional grip on the magazine which is maintained even if the tongues (2) are broken.
Patent FR-2381302-A1 (FR)
Title: Automatic wheel balancing assembly - has drive rollers and speed monitor with sampled sensor providing wheel balance data
IPC: G01M1/08
Filed: 1977-02-17
Abstract: A wheel balancing system has a motor (1) driving the wheel axel assembly (2a, 2b) at a speed monitored by a detector (9). The wheels are driven by a friction roller (5) by a band (6) from the motor. When the wheel speed reaches a preset speed a sensor (8) is samled. The wheels are stopped and a counter balancing weight is placd on the wheel rim. The wheels are again brought up to the preset speed and the sensor (8) resampled. The difference in value of successive samplings of sensor (8) provides an indication of the state of balance of the assembly.
Patent FR-2357895-A1 (FR)
Title: Detecteur par capture d'electrons du type cylindrique et asymetrique
IPC: G01N27/64
Filed: 1977-02-23
Abstract: a. Détecteur par capture d'électrons. b. Il comprend une première électrode délimitant un volume d'ionisation, une électrode collectrice, des moyens d'admission d'un gaz à l'intérieur du volume d'ionisation, des moyens d'ionisation pour ioniser le gaz à l'intérieur du volume d'ionisation et des moyens de créer un champ électrique qui oblige les électrons libres créés dans le volume d'ionisation à se diriger vers l'électrode collectrice et il est caractérisé en ce que l'électrode collectrice est placée en dehors du volume d'ionisation, en ce que les moyens d'admission du gaz font passer le gaz loin de l'électrode collectrice, lesdites électrodes étant coaxiales et une extrémité de l'électrode collectrice étant séparée de l'extrémité en regard de la première électrode par une distance au plus égale à une distance maximum de séparation. c. Analyse chromatographique gazeuse et détection de fuite gazeuse.