baber/WOPTO huggingface dataset:
Patent FR-2264874-A1 (FR)
Title: Starting-up a reactor for steel making - by the refining of solid prods. rich in iron, e.g. sponge iron
IPC: C21C5/56
Filed: 1974-03-20
Abstract: Refining operations are started in a continuous refining plant, mfg. steel from solid prods. rich in iron, by pre-heating the refractory linings. A charge of solid fuel is placed in the vessel and heated to incandescence, after which the prods. rich in iron are added progressively so that they melt and, when liq. metal is obtd., oxygen is blown into the vessel in order to start the oxidn. reactions involved in the refining process. The charge is pref. a mixt. of solid fuel and solid prods. rich in iron. Used for starting a steel making process using solid prods., i.e. as distinct from using e.g. molten iron.
Patent FR-2220923-A1 (FR)
Title: Time measurement clocks or watches - uses determined freq. periodic signal generator and D.C. supply source
IPC: G04F5/04
Filed: 1974-05-07
Abstract: The definite frequency periodic signal generator for time measurement is fed from a d.c. source such as a dry battery. The generator comprises a first transistor, a second transistor, a resistive element, a capacitive element, the transistors and elements being arranged to form a watch oscillator. The resistive element comprises a first resistance whose value is adjustable and regulates the frequency, and a second adjustable resistance which controls the duration of the periodic signal from the generator.
Patent FR-2233022-A1 (FR)
Title: Cleaning and polishing drum for small objects - has a strainer drum containing a concentric contra-rotating tufted shaft
IPC: B07B4/06
Filed: 1974-06-14
Abstract: The mechanism is particularly for removing dust from the outside of capsules before medicaments are injected into them by a filling machine, and incorporates a cylindrical rotary strainer drum in a housing through which the items pass. The internal drum walls are clad with a dust-permeable material, and inside the drum and concentric to it is a shaft rotating in the opposite direction and equipped with tufts.
Patent FR-2283240-A1 (FR)
Title: Thermomagnetic treatment of magnetic steels - giving improved magnetic props.
Inventor: BRONNER CLAUDE
IPC: C22F3/02
Filed: 1974-08-26
Abstract: Nialco type ferromagnetic alloys are thermomagnetically treated by homogenisation at high temp., cooling rapidly to ambient temp. to freeze the alpha-phase, annealing at 600-100 degrees C. in a magnetic field, then tempering for 1-20 hrs. at 500-650 degrees C., esp. in two phases, 1 hr. at 640 degrees C. followed by 5 hrs. at 520 degrees C. The alloy comprises 18% Co together with 9-15% Al, 15-30% Ni, 0-6% Cu, 0-8% Ti, bal. Fe, and opt. other metal(loid)s, such as Si, Nb, Ta and Zr, present as impurities. The alloys have improved magnetic properties.
Patent FR-2244551-A1 (FR)
Title: Press mould for multi-layer glued skis - has low sidewalls extending over fraction of ski thickness
IPC: A63C5/12
Filed: 1974-09-20
Abstract: Press mould for glued multi-layer skis has low sidewalls extending over only a fraction of the thickness of the ski, and is elastically flexible parallel to its longitudinal mid plane. Preferably the height of the sidewalls equals or is less than the height of the steel edges. The sidewalls extend only to the beginning of the blade curvature, in which region the mould part is concave upward, with a smaller curvature than that of the ski. The mould floor is an elastic e.g. steel sheet, with welded, riveted, or screwed-on, sidewalls as strips. A more rational prodn. process for glued skis is thereby obtd.
Patent FR-2286283-A1 (FR)
Title: Gas turbine with rotary regenerative heat exchanger - has automatically controlled bypass valves round halves of heat exchanger
Inventor: GUILLOT JACK
IPC: F02C9/18
Filed: 1974-09-26
Abstract: The turbine has a compressor on the same shaft as the high pressure turbine and a low pressure turbine on a separate shaft. It has a rotary regenerative heat exchanger which consists of porous ceramic disc rotating on a shaft so that one half passes through the air channel between the compressor and the combustion chamber and the other half passes through the gas channel between the turbine and the exhaust. There is a bypass with a valve round the air side of the heat exchanger and a bypass with a valve round the gas side. The valves are automatically controlled to close at low loads and open at high loads which increases the range of loads over which maximum efficiency is maintained.
Patent FR-2250580-A1 (FR)
Title: Fibre suspension sieve unit - has intermediate chamber between sieve segments to remove impurities without allowing bypass action
IPC: B01D29/00
Filed: 1974-11-08
Abstract: The design of a sieve system to grade the solids in a fibre suspension has a number of intermediate chambers between segments of the sieve with an outlet for the removal of impurities. The system ensures that impurities are removed, without allowing them to bypass the outlet, with the attendant risk that they become reduced in size by the sieving action and passed out with the fibres.
Patent FR-2290331-A1 (FR)
Title: Braking device for supply trolley - has rotating cam operated by drawgear contacting wheel
IPC: B60T1/04
Filed: 1974-11-08
Abstract: The supply trolley overcomes difficulties to small diameter wheels which prevent the use of normal type brake gear. The drawbar of the trolley is inclined to a small angle up or down and this is used to operate the brake gear. The system consists of a wheel (2) and a moving cam (13) on an axis parallel to that of the wheel. The cam can contact the wheel and is held in the "off" position by a spring (19). The cam shaft has a pinion which engages with a rack operated by the drawgear. This arrangement can be repeated on each side of the wheel (for both directions of movement) and on both sides of the vehicle.
Patent FR-2291470-A1 (FR)
Title: Percussion caps for sporting guns and small arms cartridges - with shatterable cover over explosive ensuring correct burning and avoiding blockage
IPC: F42C19/10
Filed: 1974-11-12
Abstract: An improvement to percussion caps, made of plastic material, for sporting cartridges, blank shot and ammunition for small fire-arms, consists of holding the explosive against the bottom of the case by a cover held by a should on the internal surface of the body of the case, or by a groove in the surface. The cover is made of material which is pulverised during the explosion. It may be a hygroscopic material such as plastic or cement deposited as a powder and hardening by absorbing moisture from the explosive. It may be made of combustible material or a mixture contg. oxidising and reducing agents such as potassium perchlorate, sodium nitrate, gum or strontium carbonate, or material which absorbs any gas formed during the explosion, or a non-hygroscopic carbonate contg. agglomerating agents such as natural gums or plastic emulsions. The invention provides a simple and safer means of holding the explosive firmly on the bottom of the case, acting as an anvil, ensuring correct burning. There is no risk of a part of the anvil blocking the safety pin, as there is with the use of traditional caps.
Patent FR-2247308-A1 (FR)
Title: Brazing flanges on wave guides - using graphite pot-furnace heated by induction, and a protective atmos
IPC: B23K1/002
Filed: 1974-12-06
Abstract: In brazing a flange on the end of a tube, esp. a wave guide, the brazing is carried out in a neutral or reducing atmos. in a furnace heated in a homogeneous manner so the parts being brazed reach a uniform temp. The pref. device consists of a graphite pot heated by a high-frequency induction coil, the base of the pot having a raised section on its upper surface on which the flange rests, the guide being pushed through the flange and resting on the base of the pot; an inlet and outlet for protective gas are located in the base of the pot between the raised section carrying the flange and the middle section supporting the projecting part of the guide. Normal brazing results in porosity and oxidised regions, the oxides seeping from the pores and forming insulated zones which impair the function of the wave guide; this invention overcomes these problems and results in a high quality brazed joint.
Patent FR-2290818-A1 (FR)
Title: Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources
IPC: G09F13/04
Filed: 1974-11-07
Abstract: The electronic flasher emits periodic pulses via one or more miniature filament lamps or light-emitting diodes, energised via a thyristor control circuit from a miniature battery, the flasher unit being incorporated in a jewellery item, e.g. mounted on a bracelet. The transistor circuit uses at least two transistors (2, 5) of complementary type, a capacitor (4), a resistor (3) and a switch (1). Preferably the lamp (6) is connected between the emitter of one transistor (2) and the collector of the other one (5), with the capacitor (4) connected in parallel with a series circuit comprising the base-collector path of the two transistors and the resstor (3) is connected between the base of the first transistor (2) and the emitter of the second one (5).
Patent FR-2297301-A1 (FR)
Title: Low cost perfabricated building with metal framed external walls - has wood and asbestos interal walls and concrete skimmed floors
IPC: E04B1/24
Filed: 1975-01-08
Abstract: The prefabricated building consists of external walls built on a metal frame of columns (4) and beams (5) joined together to form a rigid structure. It also has internal partition walls, and floors (2) with metal joints (6) and wood cross-pieces covered by wood or asbestos-cement panels with a top layer of concrete. The roof has a metal frame with wooden slats over which the roof covering is placed. The cost of construction is comparatively low because the building can be erected by unskilled labour and the various elements are easily adapted to suit individual needs.
Patent FR-2310054-A1 (FR)
Title: Heated covering for wall - has incombustible base with decorated outer face and embedded resistance elements
IPC: H05B3/26
Filed: 1975-01-22
Abstract: The heated covering for a wall has an incombustible base formed of asbestos fibres, the outer side of the base being able to receive wallpaper or being coated to receive paint. The reverse side of the covering is provided with an electrical resistance circuit. The heater may be thermostatically controlled and the covering may be manufactured on existing machinery.
Patent FR-2303901-A1 (FR)
Title: Road sweeping machine rotary brush - has bristles inclined radially at predetermined angle to supporting disc face
IPC: A46B9/02
Filed: 1975-03-13
Abstract: The rotary brush is for use on a road-sweeping machine, having a supporting disc with a number of bristles implanted on one of its faces. Each bristle bundle (4a, 4b) is inclined in the radial plane in which it is situated at a predetermined angle (A) to the face of the disc (1). The latter can be of plywood, the peripheral bristles at least having their bases passing right through it. The central ones can be hooked into the disc by means of blind holes (3) inclined at the desired angle so as to hold them in the correct attitude.
Patent FR-2304814-A1 (FR)
Title: Metal framework construction system - has stepped lugs welded to lateral members to engage in regularly spaced holes in vertical members
IPC: A47B57/40
Filed: 1975-03-17
Abstract: Vertical posts formed as hollow sections have lines of regularly spaced rectangular holes parallel to their longitudinal edges. The cross beams, which are also hollow steel sections have lugs welded transversely at their ends each lug having an upper foot which is longer than the lower foot and the feet are spaced at the pitch of the rectangular holes in the vertical posts. Attachment of horizontal to vertical beams is achieved simply by inserting the upper foot into a hole with the lug horizontal and then rotating the beam downwards to engage the lower foot in another hole. When the beam is released, it slides downwards so than the lower foot is retained in the hole and the upper foot is still held because of its extra length.
Patent FR-2277946-A1 (FR)
Title: Two-stage flushing mechanism for water closet - has two vertically spaced units partial or total reservoir emptying
IPC: E03D1/30
Filed: 1975-05-28
Abstract: Either total or partial evacuation of the tank's contents can be effected during the flush. A stepped open ended hollow cylindrical housing (1) with peripheral apertures (9) supports a bi-walled tubular vessel (22) with closed annular base, enclosing primary float (21), this latter abutting an upper seat (10) and being supported on a further tubular element (12) which fits slidably and co-axially inside the housing (1) and float contg. vessel (22) assembly. The sliding tube (12) bears an upwardly opening valve diaphragm (13) on its lower end and this valve remains open until vessel (22) is practically empty. Secondary valve (20, 24) with controlling float (27) prevents water evacuation beyond a certain stage.
Patent FR-2314447-A1 (FR)
Title: Natural draught non vision ventilation grille - is assembled from sections dovetailing together, each having transverse vee bars
IPC: E06B7/03
Filed: 1975-06-13
Abstract: A section of the grill is formed by two posts (10, 11) with horizontal bars (14) between them. The bars have the form of an inverted V or U and are spaced to leave a correspondingly shaped air gap between them. This shape prevents vision through the grill even if the line of sight is from below. The supports have V or U shaped recesses (12) into which the bars are slotted. The recesses have plastic moulded projections (13) which leave a gap narrower than the bars so that the bars are held in a press fit. A further section is dovetailed onto the first by the end recesses (120) which grip the joining bar partly in one pair of laterals (20, 21) and partly in the other (10, 11).
Patent FR-2316038-A1 (FR)
Title: Welding torch assembly - esp. for welding corrugated sheets comprising a carriage with a bush slidable on the guide bar
IPC: B23K9/28
Filed: 1975-07-02
Abstract: A translation assembly for a welding torch on a support includes a guide bar fixed to the support for defining the direction of translation of the torch, a carriage slidably mounted on the guide bar and bearing the torch and a motor on the carriage which can displace the carriage along the guide bar. The carriage has a bush, slid over the guide bar on which it can slide with easy fit. The motor moves the carriage by means of a roller which is rotated by the motor and which can take up a position in service in which it rests against a longitudinal surface of the guide bar. The assembly is esp. useful when welding sheets, esp corrugated sheets in particular in the two perpendicular directions.
Patent FR-2283574-A1 (FR)
Title: Control circuit for traction motor - giving motoring or braking duty by field current reversal
Inventor: WILLIAMSON DENNIS FRANCIS
IPC: H02P7/28
Filed: 1975-08-29
Abstract: The traction motor is normally under the control of a chopper, and is connected to the supply by the chopper and a contactor. The field winding is regulated by a controller also connected between supply lines, and the field to armature common point lies near the negative potential line. For braking duty, either dynamic or resistive, the contactor is opened. The potential at the field to armature common now lies close to the positive line due to the forward bias of the diode between the common point and the positive supply caused by the freewheel current of the motor. In consequence the field current reverses and is followed by armature potential reversal.
Patent FR-2319451-A1 (FR)
Title: Power shear - moving shearing edge anti deflection device carried by frame
IPC: B23D15/06
Filed: 1975-10-06
Abstract: The power shearing machine comprises a frame member providing a stationary cutting edge, a movable member carried by the frame and guided for substantially vertical movement past the stationary edge, the movable member having a shearing edge disposed thereon, the movable member and edge extending for a distance between sides of the frame. The moving shearing edge anti-deflection devices are carried by the frame, the anti-deflection devices engaging both inner and outer faces of the movable member intermediate side edges of the movable member in a manner which allows relative movement of the movable member with respect to the anti-deflection devices the anti-deflection devices resisting horizontal movement of the movable member.
Patent FR-2287823-A1 (FR)
Title: Thyristor based gas discharge lamp trigger circuit - gives gentle triggering action and prolongs lamp life using compactly constructed circuit (NL130476)
IPC: H05B41/18
Filed: 1975-10-10
Abstract: A thyristor based triggering circuit is for a gas discharge lamp. An alternating voltage and current source (20) is applied to the triggering circuit (130) in series with the electrode heating elements (22, 24) and a firing coil (28). All these additional components are mounted compactly above the lamp itself. If the lamp is off, a voltage develops across the triggering circuit which incorporates a smoothed voltage divider (36, 38) of which the common point is attached via a diac (40) to the gate of a thyristor (32) connected across the voltage divider. The effect is that the thyristor fires after a certain voltage has developed, allowing a current through the coil and heating elements to develop. On the following half cycle the thyristor is turned off. This is repeated until the lamp fires, when no voltage can then be developed across the triggering circuit.
Patent FR-2288284-A1 (FR)
Title: Anchorage for refractory lining for furnace - clamping plate secured by hairpin shaped rod with nose welded to furnace wall
IPC: F27D1/14
Filed: 1975-10-17
Abstract: An anchorage for attaching refractory plates to metal walls of metallurgical furnaces consists of a metal rod (10) which is bent over into a hairpin bend (11) this part being welded to the metal wall (13), the straight, parallel portions (12, 13) passing through the lining and being bent over (20, 21) to pass through a retainer plate (14) with its edges raised (15) all round, to clamp the lining (19) from behind. One end (20) is slightly longer than the other (21). In an alternative design, the retainer is a curved plate with a block at the rear, giving an approximate mushroom shape, with a pair of holes through the block for the rod ends, the holes sloping somewhat to leave a V shape bridge between them, with rounded edges for contact with the rod.
Patent FR-2289381-A1 (FR)
Title: Automatic discharge railway hopper - side clappers hinged horizontally opened by shaft cam and spring action from end mounted lever
IPC: B61D7/26
Filed: 1975-10-31
Abstract: The hopper wagons with sloping hopper bases towards the centre of the vehicle. The lateral discharge clappets are suspended on a horizontal shaft and are closed at the bottom by a shaft which turns horizontally along the longitudinal side of the wagon. At the front the shaft has a pivoting lever with a hand grip and a force applying surface flat and parallel with the longitudinal axis of the wagon, a sliding surface and a cam which turns a sleeve, spring controlled in the sense of rotation. There are stops incorporated so that the clappets tend to return to the shut position by spring force.
Patent FR-2291695-A1 (FR)
Title: Root crop harvester with transverse moving sieve (s) - has pick-up blade laterally forward of moving sieve (s) with sharp angled cutting edge
IPC: A01D17/08
Filed: 1975-11-18
Abstract: The pick-up blade (2) of the root crop harvester is positioned laterally forward of the sieve (1) swinging across the direction of travel. The cutting edge (3', 3) of the blade forms an acute angle open at the front to the direction of travel. The blade edge faces the side of the field not yet harvested. The blade surface completes a movement which rises and falls obliquely towards the discharge side. A land-wheel (4) rotating in the direction of travel is on the opposite side to the blade and has a coulter (5). The blade may swing in opposite direction to the sieve, each of the latter swinging in relatively opposite direction.
Patent FR-2337912-A1 (FR)
Title: Remote controlled highway signalling or advertising display system - has several panels selectively moved into display position by motor and electromagnetic control
IPC: G09F11/34
Filed: 1976-01-08
Abstract: The publicity display system displays various selected panels through a window of a housing. The movement of the selected panels in one direction or the other is controlled from a remote control desk. This control desk has as many pairs of pushbuttons as there are panels to be selected. Each pair of pushbuttons control the operation of contactors. One push button controls the operation of a contactor which excites a certain electromagnet and a motor to move the selected panel into position. The second pushbutton controls a second contactor. This contactor also excites a second group of electromagnets. One of these electromagnets is common with the first contactor so as to initiate return of the selected panel to its storage positions. This is done by cooperation with a rotating cylinder which rotates in the opposite direction to that required to display the publicity panel.
Patent FR-2347480-A1 (FR)
Title: Sewing machine for joining cloth upper to rope sole of a shoe - given smoother movement for its needle carriage, so increasing stitch rate
IPC: D05B23/00
Filed: 1976-04-08
Abstract: As the shoe moves forward, a stitch length at a time, a transverse carriage passes a needle from side-to-side through the sole, in a hole made, a few stitch-cycles previously, by an awl borne on the same carriage; as the needle withdraws from the limit of its stroke, the thread it carries forms a loop, through which the shuttle passes to make the stitch. Previously the transverse carriage has been driven by a shaped cam, so that the needle remained still while the shuttle passed through the loop. To reduce the number of accelerations and retardations this involves, the transverse carriage is now moved in an uninterrupted to- and -fro motion, initiated from a circular motion (pref. of a crank or a circular cam). To allow the shuttle to pass with the increased speed now required, its drive (a pivoted lever oscillated by a crank) has its pivot re-positioned so that the passage through the loop comes nearer the end of the shuttle's travel; and the shuttle is truncated at the rear.
Patent FR-2365853-A1 (FR)
Title: Rotary head video tape recorder - allows intermittent scanning of oblique recording tracks or scanning at different rates
IPC: H04N5/783
Filed: 1976-09-27
Abstract: The rotary head video tape recorder has signals recorded as signal blocks along parallel oblique tape tracks and recorded and played back at a given rate, with a fixed tape transport velocity. The signal blocks can be scanned at different rates, which are fractions of the given rate, or intermittently, for either direction of movement of the tape. Pref. the video recorder has a first control for selecting the direction of tape transport, a second control for selecting the record or playback mode and a third control selecting the scanning rate or intermitten scanning.
Patent FR-2367148-A1 (FR)
Title: Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices
Inventor: LAMY JACQUES EDOUARD
IPC: E02B17/00
Filed: 1976-10-05
Abstract: The ribbing system is used for neutralisation of vibration effects especially in columns immersed into flowing liquids. The building component surface has ribs or profiles for vibration elimination. The ribbing system suppresses forces generated by vortices, especially when alternating vortices are generated. The ribs or profiles are distributed irregularly on the circumference of the building component. These ribs or profiles can form successive ring arrangements in which the ribs or profiles of one ring arrangement are staggered relative to another one. Ribs can be arranged in helical pattern while maintaining staggered arrangements.