baber/WOPTO huggingface dataset:
Patent FR-2140687-A1 (FR)
Title: Colour formers - complex leucauramine type salts and their preparation used in duplicating process
IPC: B41M5/136
Filed: 1972-06-13
Abstract: Colour former leucauramine type salts of formula where R1-8 are hydrocarbyl except R2R4R6R8 may not be H, or R may form a ring with the N atom; pref. are (m)ethyl; ABA'B' are opt. substd. 1,4-arylene, Q is -O- or -NR- and Q' is -NR'- where RR' are various gps. pref. H, alkyl XX' are H, opt. substd. hydrocarbon. Y is anion pref. -SO3, or -COO- and attached to X. Z is a cation pref. -N+R9R10R11 where R9-11 are H, opt. substd. alkyl, aralkyl, cycloalkyl or form part of a heterocycle with the N atom, n = 1-3 pref. 1. Cpds. are prepd. by reacting the two components salts. Used for duplicating papers giving copies with high light resistance.
Patent FR-2205411-A1 (FR)
Title: Continuous longitudinally corrugated sheet prodn. - by laminating flexible sheet by parallel welds to a heat shrinkable film
IPC: B32B27/00
Filed: 1972-11-03
Abstract: Corrugated sheet is made by bonding a flexible sheet material by a series of parallel welds to a 2nd sheet which can subsequently be heat shrunk to draw the welds closer together. Continuous sheet is formed into longitudinal corrugations and subsequently laminated between facing sheets to make stiff board, esp. if then laminated with continuous sheet having transverse corrugations to make perpendicularly double corrugated packaging board. Pref. corrugated laminates have flexible non-shrink layer of e.g. paper, ono-oriented plastic film, fabric or metal (Al) foil, and the heat shrinkable layer of PVC or polyethylene film, esp. 0.05 mm thick with a potential contraction of >=20%. Process allows continuous prodn. of longitudinal or crossed axis corrugated core board, thus increasing output rates and reducing cost. Presence of thermoplastic layer improves moisture barrier props. of the board.
Patent FR-2175233-A1 (FR)
IPC: A63C9/084
Filed: 1973-03-07
Abstract: A releasable heel hold-down device for a ski binding includes a base part secured to a ski with a housing displaceably secured on the base part. A first rocker and a second rocker are located within the housing. For holding the heel of a ski boot on the ski, a hold-down member is adjustably connected to the second rocker which is pivotally attached at spaced locations to the housing and to the base part. The first rocker is pivotally connected to the base part. A spring, positioned within the housing, biases the first rocker in the direction of the hold-down member. The two rockers are interconnected by a toggle assembly consisting of first toggle levers pivotally attached to the first rocker and a second toggle lever pivotally joined to the first toggle lever and to the second rocker. The device is displaceable between a holding position securing a ski boot on the ski and a release position. The axes of pivotal attachment of the second toggle lever define a dead center line through which the axis of pivotal attachment of the first toggle levers to the first rocker passes in the displacement of the device between the holding and the release positions.
Patent FR-2225271-A1 (FR)
Title: Injection moulding nozzle with integral ejection ram - esp. used for deep mouldings of expanded polystyrene
IPC: B29C33/44
Filed: 1973-04-11
Abstract: Base of a cavity tool for moulding plastics, esp. expanded polystyrene, is fitted with an ejector plug backed by a tube on a spring loaded base which can be moved by an ejector plate. The ejector plug accommodates a coaxial plunger which can be retracted, viz hydraulically. Retraction of the ram allows feedstock beads to be injected from a hopper via an oblique entry into the mouth of the ejector thrust tube. The ram housing and the entry tube move in common with the ejector tube. The ram movement and matl. injection may use a common pressure source. The device allows both injection and ejection to be effected coaxially w.r.t. the moulding, for symmetry of flow and balance of ejection forces, and provides an adequate injection gate and a relatively large ejection thrust area.
Patent FR-2244744-A1 (FR)
Title: 2,3,6-Trimethyl-benzoquinone prepn. - by reaction of pseudocumene with a weak peracid with an acid catalyst
Filed: 1973-09-21
Abstract: Pseudocumene is reacted with 1-10 moles, per mole of pseudo cumene, of a peracid of pKa >7.0 in the presence of 1-150 wt.%, based on pseudocumene, of a catalyst which is an acid of pKa 3.0 or a Lewis acid at a temp. of 0 degrees-100 degrees C to give 2,3,6-trimethylbenzoquinone, which on reduction is converted to 2,3,6-trimethyl-hydroquinone, a starting material for the synthesis of vitamin E. The method is simpler than known methods involving several stages or use of strong peracids.
Patent FR-2251020-A1 (FR)
Title: Holographic recording device - has liquid crystal cell in object beam path receiving polarising voltage
IPC: G03H1/00
Filed: 1973-11-13
Abstract: The device comprises a laser (10) and a semi-transparent mirror (11) producing an object beam ( 3) and a reference beam (2) from the laser, these two beams providing an interference zone (I). A first support (50) enables an object (5) with variable spatial transmission to be placed in the path of the object beam between the mirror (11) and the interference zone (I). A second support (60) enables a photodetector to be placed in the interference zone (I). A liquid crystal cell (4) placed in the path of the object beam, receives a voltage (V) which has the effect of polarising the cell.
Patent FR-2282852-A1 (FR)
Title: Metal core medical prosthesis - has core protected by chemical insulating material with covering
IPC: A61L27/04
Filed: 1973-11-19
Abstract: The prosthesis is for use inside the body in bone surgery, and comprises a core of the most convenient metal, from the point of view of manufacture and use, protected by a thin layer of chemical insulating material fully adhering to it and protecting it from attack by any matter which might come in contact with it. This layer is in turn covered, partly or wholly, with a fully-adhesive product to give the surface condition desired. The metal core can be of high-strength metal, with a high modulus of elasticity, a high resistance to fracture, and easily weldable, shaped and/or machined, also with a high resistance to corrosion and suitable for precision casting, and is typically a nickle-cobalt-molybdenum alloy.
Patent FR-2259161-A1 (FR)
Title: Hot dip coating ferrous metal tube - by immersing continuous tube in molten metal to coat its outer surface and cutting to length
IPC: C23C2/02
Filed: 1974-01-25
Abstract: A steel tube with an exterior coating of a few to 100 mu thickness obtd. using the title process has a certain no. of hollows of a few to 100 mu depth and diameter formed evenly over the basic metal surface of the tube. This gives highly corrosion resistant coatings without gaps. Pref. the tube is precoated with a plastic film or paint.
Patent FR-2259228-A1 (FR)
Title: Continuous automatic borehole volume determination - from borehole diameter measurement at successive equal depth increments
IPC: E21B47/00
Filed: 1974-01-30
Abstract: The volume of a borehole is detd. by, (a) producing at least first signals representing the well diameter at successive depths in the borehole, (b) producing pulsed depth signals representative of elements of distance between successive depths, (c) processing the first signals and in response to each depth pulse intermediate signals representative of the transverse surface of the borehole at each such depth, (d) processing an output signal representative of the sum of the intermediate signals for the depths of a length of borehole, such output signal then being representative of the volume of the borehole over this length. Method provides a relatively simple and more reliable technique for continuously and automatically measuring the borehole volume, using equipment contg. the minimum moving parts e.g. servomotors.
Patent FR-2261906-A1 (FR)
Title: Car safety harness - lateral belts back to seat joined by horizontal one adjustable for height by press studs
IPC: B60R22/26
Filed: 1974-02-27
Abstract: A car seat harness consists of two lateral, adjustable, belts (1, 2) from the high part of the seat back to the rear of the seat, and a horizontal belt (10) in two parts joined in the centre by a fixing (12). The belts are about 7 cms. wide. Changing the harness is easy, each end having a snap hook (3) and a ring (4). On the front of each belt (1, 2) are press studs (5 to 9) about five centimetres apart. The horizontal belt (10) is folded over at both ends for buckles (11) traversed by the lateral belts. The press studs are used for adjusting the height of the horizontal belt.
Patent FR-2263977-A1 (FR)
Title: Purifn of sodium hydroxide solns - by cooling to supersaln, pptg crystals, classifying and removing impure crystals with classifying soln
IPC: C01D1/30
Filed: 1974-03-11
Abstract: Method esp. for reducing diaphragm cell effluent impurities (partic NaCl) to 0.01-0.001 %, involves (a) cooling soln to NaOH hydrate supersatn. temp. (b) forming from this soln a slurry of large NaOH hydrate crystals and finer impurity crystals (e) separating the two by countercurrent contact with a classifying soln such that the fine impurity crystals are carried with the classifying soln and the larger NaOH hydrate crystals settle to form a bed (d) separating the classifying soln. (e) removing the fine impurity crystals from the classifying soln (f) adding NaOH soln to the classifying soln and recycling to step (a), and (g) removing and washing the NaOH hydrate crystals.
Patent FR-2264704-A1 (FR)
Title: Support strut to transfer container from trailer - has telescopic portions pivotal on sliding arm for stowage underneath
IPC: B60S9/04
Filed: 1974-03-18
Abstract: A supporting strut for a container on a trailer to facilitate loading and unloading of the container, is made up of two telescopic tubes, the lower part (4b) carrying a shoe (5) which pivots about a pin (6) at the lower end, to rest on the ground, And the upper part (4a) able to pivot about a pin (3) at the top, attached to an arm (7) at the upper end, so that it can swing down and support the container. The arm at the top is horizontal, and can slide in and out, so that the strut can be folded up completely and stowed away underneath the trailer.
Patent FR-2267922-A1 (FR)
Title: Hand powered tricycle - has seat low between wheels and trailing wheel at rear and front footrest
IPC: A61G5/02
Filed: 1974-04-19
Abstract: A tricycle with a riding seat (9) located between and just behind the two main wheels (2) has a small wheel (4) trailing at the rear. Each main wheel is driven by its own chain drive (10, 11, 12) powered by a handle (14) rotated by hand in the manner of an invalid chair. The rider is seated substantially between the wheels, with his feet supported by a footrest (6) at the front. The tricycle is steered by rotating one chain drive faster than the other, and is reversed in a tight circle by rotating one chain drive in the opposite direction to the other. The seat adjusts forwards and upwards. A version for two riders, with two pairs of drive handles has two seats in tandem.
Patent FR-2275388-A1 (FR)
Title: System ensuring equal distancing between objects - has distance links combined into units moving towards and away from each other
Inventor: KIRINO ISAO
IPC: B65G47/26
Filed: 1974-06-19
Abstract: Material handling system arranges objects at equal distances from each other. A large number of distance links (3) are fitted in parallel to each other with at least one section of the distance links consisting in each case of a pair of distance units (4) capable of being moved towards and away from each other so that the distances between the distance units and from distance linke to distance link can be increased or reduced corresponding to the movement of a piar of distance units towards or away from each other. A pair of distance units consist of a pair of rod elements (4) having an 'L' shaped cross section with a guide shaft (7) and a pressure spring (9) wound round the shaft.
Patent FR-2237340-A1 (FR)
Title: Connecting cables insulated with vulcanised polyethylene - by hot vulcanising wrapped joint under gas or liquid pressure
IPC: H02G15/196
Filed: 1974-06-26
Abstract: Connecting two cables insulated with vulcanised polyethylene or other polymer comprises removing the insulation at the ends of the conductors, joining the conductors, taping with unvulcanised polyethylene or other linear polymer contg. cross-linking agent, applying pressure to the joint to form a fused cures mass. Specif. the pressure agent is a gas or liq.
Patent FR-2279655-A1 (FR)
Title: Slewing jib crane - has tailweight unit with travel gear slewing superstructure with main jib and gantry
IPC: B66C23/74
Filed: 1974-07-26
Abstract: The crane has a chassis supporting a horizontal slewing superstructure on a first vertical axis. A main jib extends upwards and outwards from the superstructure, derricking about a horizontal axis, being supported by a rear gantry, also mounted on the superstructure. A tailweight unit (30) clear of the chassis travels over the ground in a circle round the first vertical axis (20), being equipped with travel gear (32, 34), and has a weight slewing about a second vertical axis, also a drive mechanism independent of that on the superstructure, to which it is coupled by a rigid cross-boom (50), so that it causes the superstructure to slew as it travels in a circle about the first vertical axis. Derricking and/or tie ropes are provided, to secure jib and gantry heads (42, 60) together and to the tailweight unit (62, 64, 66) and sustain the load lifted by the main jib.
Patent FR-2279907-A1 (FR)
Title: Rectangular concrete post shuttering - has two angle frames connected in form of adjustable parallelogram
Inventor: BLONDE GUY
IPC: E04G13/02
Filed: 1974-07-23
Abstract: Each of two girdle frames (10) has two panels (3, 9) of approximately product width. One leg (3) is of adjustable length by virtue of a two piece (4, 5) construction of which the outer element (5) is removable. The frames (10) are slideable w.r.t. one another in a direction normal to the variable side (3), with the face of the other and adjustable side (9) sliding on the free edge of the side (3). Each frame (10) comprises two member (11, 12) each comprising a longeron (13, 14) and a rectangular gusset (15, 16) adjustably connected according to the area of the post (17). The frames are connected by two pivotal ball devices (19, 20) which pivot under the control of threaded shafts (21) which relatively move the two frames, the devices (19, 20) forming a deformable parallelogram linkage.
Patent FR-2284715-A1 (FR)
Title: Trench digger and filler for planting - has V-section plough front joined to rear levelling blades
IPC: E02F5/12
Filed: 1974-09-11
Abstract: Tractor drawn trench digging a filling device has platforms (4) for people placing plants or seeds in the trench as the device advances. The device has a double blade (2) nose of 'V' shape in plan, two levelling or backfill blades (5) and parallel platforms (4) defining a longitudinal interval between the double blade nose and the blades. The blades are inclined w.r.t. the device centre line to move excavated soil back into the trench. The nose leading edge is curved. A draw bar links to a three point tractor coupling.
Patent FR-2272459-A1 (FR)
Title: Recording and reading circuit for magnetic account cards - uses phase encoding and can cope with misaligned cards
IPC: G06K7/016
Filed: 1974-09-13
Abstract: The data is recorded on a record carrier along one or more edges of the card and consists of characters each comprising several bits for serial reading. The data is divided into groups each of which is recorded in a separate track and has its own record and read system. The data in each group are read serially into a shaft register and then collected in a buffer register, and all the data groups are then retrieved simultaneously by a computer from the buffer registers. Pref. each character comprises a byte which is divided into two tetrads each of four bits.
Patent FR-2255475-A1 (FR)
Title: Emergency flow actuator for cooling regulators - has stepped channel with spring in narrow section and safety fuse in wide section
IPC: F01P11/14
Filed: 1974-12-23
Abstract: Emergency flow actuator for passing of operating fluid to automatic cooling regulators, especially for combustion engines, where the flow of the operating fluid controls a valve plunger which is operated by a temperature sensor. A cylindrical channel is formed, step-shaped, between the feed line and the exit line. In the narrow section of this channel, which opens into a recess in the valve housing at the height of the radial orifice in the valve core, is a spring. In the wide section of the channel, which is cut off by a seal, a safety fuse is fitted so that it covers the aperture of an exit channel which connects the cylindrical channel with the exit line. Further, in the cylindrical channel a chamber is formed for displacement of the safety fuse.
Patent FR-2298375-A1 (FR)
Title: Size grader and cleaner for fruit, vegetables etc. - has reciprocating sloping grilles with adjustably spaced screening bars
IPC: B07B1/12
Filed: 1975-01-21
Abstract: The machine comprises a pair of superimposed, spaced grilles, inclined at an angle to the horizontal and each made up of a set of parallel spaced bars extending longitudinally down the slope; product for processing is fed on to the top end of the upper grille and works its way down and/or through the grilles as they are reciprocated simultaneously but with contra-motion, the bars moving to and fro axially; upper grille bars are laterally offset between lower grille bars. Reciprocating drive to the grilles is pref. via links from opposite ends of a rocker arm pivoted mid-way between link attachments and oscillated by a connecting rod from a powdered eccentric. Used for size grading and abrasively cleaning fruits and vegetables, partic. root vegetables such as potatoes, turnips, swedes, carrots and onions. The product is conveyed continuously, smoothly, silently and without damage compared with vibratory screen cleaners. The grilles can have adjustable bar spacings for screening different sizes.
Patent FR-2309474-A1 (FR)
Title: Uranium tetra-fluoride prodn from oxide and hydrogen fluoride - with temp control by evapn and depolymerisation of liquid acid
Inventor: ROUVIERE PIERRE
IPC: C01G43/06
Filed: 1975-02-18
Abstract: In the prodn. of UF4 by reacting HF with U oxide, which is in the dioxide state at the time of the reaction, the temp. increase due to the heat liberated by the reaction of gaseous HF and the U oxide is limited by using (part of) this heat to evaporate and depolymerise (part of) the amt. of HF needed which is introduced in the liquid state in or near to the reaction zone. The temp. pref. is controlled by varying the amt. of liquid HF introduced and adding the rest in the form of gaseous HF. The cooling problems are easily solved and hence greater prodn. throughput per unit is possible. The liquid HF is passed into a container heated by the heat from the reaction zone or directly into the U oxide charge.
Patent FR-2301442-A1 (FR)
Title: Sealed cylindrical packing container - has knife in interior of lid to cut away removable end seal
IPC: B65D51/24
Filed: 1975-02-21
Abstract: The packing cylinder is fitted with a permanent seal (3) at one end. This seal is fitted a short distance from the end of the cylinder so that the lid (4) is clear of the seal. The other end is sealed with an aluminium foil seal which is at the end of the cylinder and folds over the edges of the cylinder along the sides. The lid (4) fits over the end of the cylinder and is fitted with knives (5) around the inner edge of the lid. To open the cylinder the lid is pushed on to shear the seal. The lid is rotated so that the seal is cut away from the cylinder which is then closed by the lid.
Patent FR-2263957-A1 (FR)
Title: Bucket elevator with buckets attached to chain links - support chains through links receive forks of buckets above
IPC: B65G17/12
Filed: 1975-03-12
Abstract: The buckets are suspended on two parallel runs of endless chain running round top and bottom sprockets by means of bars with feet fixed to the round chain links. Each bucket (27) is attached to pairs of successive links (14) of the two runs of chain (11, 12), and each bar (31) has flattened ends fitting in the vertical links and also in feet (28, 29). The fork end (34') of a foot (30'e attached to the preceding bucket (27') fits round the bar. These feet can be mounted on the rear walls of the buckets. When the buckets pass round the sprockets the feet can run between guide plates mounted on a plain guide wheel, with cylindrical rim sections supporting the chains.
Patent FR-2267522-A1 (FR)
Title: Thermocouple for gas burner safety device - using material of lower resistance than copper for tubular conductor
IPC: F23N5/10
Filed: 1975-04-09
Abstract: Thermocouple for thermoelectric safety device for gas burner comprises a portion with an inner conductor, to which is connected a tubular conductor containing a concentric conductor, and a clamping nut which is coaxial with the tubular conductor, for attaching the free end of the tubular conductor to a wall of the safety device. The tubular conductor is made of Al and includes a cylindrical rivet made of electrically conductive material having a lower mechanical resistance than Al. The rivet is coaxially attached to the free end of the tubular conductor and has an annular rim onto which the clamping nut is pressed. Pref. the tubular conductor ends in a flange around which the rim of the rivet is beaded.
Patent FR-2272432-A1 (FR)
Title: Clock spring acting as current conductor carrier - conductor on neutral plane of spring
IPC: G04C3/06
Filed: 1975-05-22
Abstract: The hair springs are used for balance wheels associated with electromechanical clock or watch movements, or moving coil instruments. To minimise the bending stresses on the conductor (9) which is fixed to the narrow edge of the coil spring (8) the former is arranged to lie along the neutral bending plane (19). As an element in this plane experiences neither tension or compression, as the spring flexes the resultant fatigue stresses in the conductor are minimised. In most applications the conductor is insulated from the spring and attached to it with a synthetic resin adhesive.
Patent FR-2310900-A1 (FR)
Title: Beacon support platform for emergency vehicle - with hollow profile to house additional flashers to indicate if vehicle stopped
IPC: F21S8/10
Filed: 1975-09-05
Abstract: The emergency vehicle is fitted with a platform across the roof to hold the flash beacons and other indicators. The platform is made from an extruded strip and is hollow. The front and rear sections of the strip have open profile edges which house a series of lights (42) backed by scalloped reflector strips (4) and fitted with lenses (23) slid into slots at the front. when the vehicle is stopped at an incident the bottom lights are iperated in a moving sequence to provide trains of light pulses moving in either direction. This indicates to other drivers that the vehicle has stopped while the direction of the pulses indicate to which side the traffic should swing to avoid running into rescue personnel.
Patent FR-2291788-A1 (FR)
IPC: C08B30/18
Filed: 1975-11-25
Abstract: Cohesive solids, in particular, are fluidised by means of a fluidising gas by transferring them from an upper into a lower fluidisation zone or vice versa, in which process they pass a multiplicity of intermediate tubular, heatable fluidisation zones having smaller tube diameters than the upper and lower zone mentioned. In this central zone, heat is transferred to the fluidised solids. In the upper and in the lower zone the solids are stirred mechanically. At the same time, the fluidising gas flows upwards, so that the solids can be moved with or against the stream. As this process results in optimum heat transfer, it is possible, by mixing with appropriate reactants, to carry out chemical reactions with cohesive solids, without the solids agglomerating or igniting spontaneously.