baber/WOPTO huggingface dataset:
Patent FR-2172897-A1 (FR)
Title: Granular dextrose prodn - by seeding starch hydrolysate soln
IPC: C13K1/10
Filed: 1972-02-25
Abstract: Granular dextrose having a high beta-dextrose content is prepd. by (a) adding seed in an amount of 1 - 10 wt.% (based on total solids wt.) to a starch hydrolysate soln. contng. >=90 wt.% dry substance and having a D.E. of >=90, while the temp. of the hydrolysate is 75 - 120 degrees C (b) transferring the resulting mass to a horizontal surface and maintaining it there for 5 mins to 1 hr., to allow crystallisation to a solid mass, (c) breaking the solid mass into particles and (d) recovering the granular product. The granular dextrose is produced in a short time, and is suitable for use in lozenges and other confections, and in baking products.
Patent FR-2172935-A1 (FR)
Title: Purificn of waste waters - from forest products,paper or cardboard industries
IPC: C02F1/52
Filed: 1972-02-24
Abstract: The waste water consists of two parts, the first part having a high content of suspended matter and low content of O2-consuming material, and the second part having a low content of suspended matter and high content of O2-consuming material. Purificn. consists of treating the first part to remove suspended matter, and the residual liq. is added to the second part, to which pptn. agent are added and the liq. submitted to physical flocculation, the sedimentation and flotation prods. are re-used in the process. The process and equipment are cheap, and small quantities of waste water may be treated.
Patent FR-2134447-A1 (FR)
Title: Desensitising compsn - for lithographic plates contg hydrophilic colloid,dialdehyde and molybdate ions
IPC: B41N3/08
Filed: 1972-04-24
Abstract: The colloid is gum arabic, the dialdehyde is glyoxal and the molybdate ions are provided by sodium molybdate. The compsn is acidified to pH 2-5 with phosphoric acid. The compsn. also contains a wetting agent pref. a water soluble polyethylene glycol with a mol.wt. of 6000-20000 and glycerol. Used for desensitising lithographic plates. The treated plates allow repeated stops during printing with a minimum of staining or inking faults.
Patent FR-2182645-A1 (FR)
Title: Thermoplastic bottles with concave base - produced by post forming of base for optimum peripheral strength
IPC: B29C49/54
Filed: 1972-05-02
Abstract: A concave base is formed on a thermoplastic container by first producing a full size moulding with a flat base, freezing the peripheral zones of the base, then deforming the centre of the base inwards to obtain a conical draw on theintermiediate zones of the base prior to freezing. Pref. cooling air is circulated over the outer surfaces of the base during deformation, and deformation of the base is effected after the principal blowing pressure has been vented or with a compensating pressure on the underside of the base. Esp. for mfr. of blow moulded bottles for containing pressurised or carbonated liquids. Material distribution is optimised by maintaining the parison wall thickness at the outer boundaries of the base without excessive thickness at the centre of the bottle. Control of material orientation is facilitated for optimum strength of the base.
Patent FR-2208006-A1 (FR)
Title: De-passivation of stainless steel - prior to plating or coating with copper, nickel, chromium, zinc, manganese, oxalate or phosphate
IPC: C23G1/08
Filed: 1972-11-24
Abstract: Stainless steels are de-passivated in a bath contg a mixt of H2SO4, HCl and PO43- where PO43- includes phosphoric acid, polyphosphoric acid and/or alkali(ne earth) phosphates or polyphosphates, at 20-110 degrees C pref. 60-80 degrees C. Prior art de-passivation of stainless steels, esp. those contg Mo, had the disadvantages of long subsequent coating times, poor coating adhesion and the safety hazards of using HF the present method overcomes these problems.
Patent FR-2186449-A1 (FR)
Title: Sound-proofing laminates - produced by vacuum moulding pre-laminated filled polymer film
IPC: B32B5/18
Filed: 1973-04-19
Abstract: The laminates are of a high filler content polymer film bound on its reverse side to a filler layer pref. of felt or polyurethane foam and then moulded by vacuum forming. They are used esp. as sound-proofing for vehicles and can be produced in varied shapes and finishes. The polymer film of EPDM, PVC, SBR or EVA contains 300-1200 parts filler/100 parts polymer.
Patent FR-2232015-A1 (FR)
Title: Pen recorder with digital inputs - has suction chambers providing two separate tape loops
IPC: G06K15/22
Filed: 1973-05-07
Abstract: The pen recorder has a control drum (1) for the recording web, located in the path of the latter between take-up and supply rolls (2), all three lying in parallel planes. Three suction chambers (3, 4, 5) are provided, so that a tape loop is formed either side of the control drum (1) ensuring that the recording web passes around the maximum periphery of the latter. Each tape loop is associated with one suction chamber (3, 4) and a control suction chamber (5) is positioned below the control drum (1), so that the recording web curves inwards either side side of the control drum (1), before passing round a roller (7) defining the end of the respective tape loops.
Patent FR-2197730-A1 (FR)
Title: Sliding elements esp for railway line points - of iron with copper alloy coating
IPC: E01B7/02
Filed: 1973-08-30
Abstract: The elements consist of an iron starting material and a coating layer of a copper alloy having a Cu content of 83 - 92%. Specif. the coating layer contains 3 - 8 wt.% Sn and 4 - 9 wt.% Al.
Patent FR-2239281-A1 (FR)
Title: Respiratory machine humidifier - having improved diffuser plate and delivery tube
IPC: A61M16/16
Filed: 1973-09-10
Abstract: A humidifier for inhalation therapy has a water container with a top cover, a water and gas inlet on the cover and an outlet for humidified gas in the cover. A gas conveying assembly in the container includes a gas delivery tube and a diffuser plate. A gas rebound chamber is defined between the diffuser plate and the bottom of the container. The major portion of the gas delivery tube extends from the plate to the inlet on the cover, while a minor portion extending below the diffuser plate is operable to maintain a gas plenum between the water in the rebound chamber and the water above the plate. The gas delivery tube joins the plate adjacent an edge portion, and the outlet passage in the cover is above an opposite end portion of the plate. The apertures in the plate spread towards the remaining edge portions.
Patent FR-2271252-A1 (FR)
Title: Polyamides for coating mouldings extrudates - from mixt. of polyamides having blocked terminal acid groups or amino groups
IPC: C08G69/00
Filed: 1973-09-14
Abstract: Polyamides for prodn. of coatings, injection mouldings, castings, and extrudates are prepd. from a mixt. of (a) a polyamide having blocked terminal acid gps. Considerable decrease in prodn. costs. Gives polyamides with good physical properties and a good resistance to-light and weathering. A range of polyamides can be prepd. e.g. polyamides 6, 11 and 86.
Patent FR-2250124-A1 (FR)
Title: Low cost roll film viewing device - constructed to imitate camera has lens through which pictures are viewed
IPC: G02B27/02
Filed: 1973-11-05
Abstract: The apparatus is used for viewing photographic pictures on a roll of film. On top side of the exterior of a housing (10) there is an observation port (20),o with a lens. There is a luminous window (15) on the front of the apparatus and there is a transport button (21) for advancing the film. Inside the housing, a reflector is positioned to return the light passing through the window (15), and a drum for winding the film is set into step-by-step rotation by means of the button (21). The film follows a course inside the housing determined by a series of guiding rollers.
Patent FR-2251018-A1 (FR)
Title: Camera lens adaptor for macrophotography - has two oppositely threaded attachment rings screwing into a sleeve
IPC: G02B7/105
Filed: 1973-11-08
Abstract: The adaptor is placed between the objective (O) and the housing (B) of a photographic apparatus in order to adjust the spacing between these elements. It comprises a central cylindrical sleeve (1) and two assemblies (4, 5, 10) screwed into this sleeve so that they can move in opposite directions on rotation of the sleeve, the adaptor being positioned coaxially about a common axis. The assemblies compise threaded or bayonet type fixing devices (8, 9) which maintain the adaptor integral with the housing (B) and the objective (O). The adaptor may also comprise two threads (2, 3) which are of identical but inverse pitch to complementary threads (6, 7) fitted on the assemblies (4, 5, 10).
Patent FR-2225294-A1 (FR)
Title: Transparent thermographic sheet for slides - for daylight projection has intermediate coat contg. resin
IPC: B32B27/20
Filed: 1974-04-10
Abstract: The sheet consists of a base with coatings contg. (1) a colourless dyestuff precursor, which forms a dyestuff in the presence of acid, (2) a film-forming binder mixed with a compatible resin and (3) a phenolic cpd. and a film-forming binder. This gives exact and sharp reprodns. under thermographic conditions and is completely transparent. It is esp. suitable for the prodn. of slides for daylight projection. The binders and solvents for the 3 coatings are selected for minimal interaction during mfr. Coating (3) pref. also contains a resin. The resins soften in the 20-100 degrees C range and the phenolic cpd. has mol. wt. 140-240.
Patent FR-2227133-A1 (FR)
Title: Thermographic or photographic dry copying material - contg. reducible, light insensitive silver salt, and reducing bisphenol
IPC: C07C67/00
Filed: 1974-04-19
Abstract: Dry copying material has a layer contg. a reducible, light insensitive silver salt, and a reducing bisphenol of formula:- (where R1 is alkyl or cycloalkyl; R2 is alkyl, cycloalkyl, aralkyl, or phenyl; R3 is H, alkyl, or cycloalkyl; and X is S or cycloalkyl; and X is S or CR4R5; R4 and R5 are H or alkyl). Has a good stability during prodn. and storage.
Patent FR-2273974-A1 (FR)
Title: Mounting bearing race in cast aluminium alternator body - accommodates differential expansion at working temperatures
IPC: F16C35/077
Filed: 1974-06-05
Abstract: The housing (1) in the alternator body is slightly deeper than the width of the bearing race (3) and is stepped. At the bottom, the diameter (2) is approximately equal to that of the race, in order to centralise the assembly. The bottom itself is recessed to provide relief. The sides are also relieved, giving a larger diameter (4) part way down the housing. The race is fitted into position and the relieved diameter on the side filled with an anaerobic synthetic resin, hardening in the absence of air. To hold the assembly while it sets, small tags (5) are bent inwards.
Patent FR-2278466-A1 (FR)
Title: Reinforcing concrete with small metallic wires - using oscillating sieve for rapid addn. of large numbers of wires
IPC: B28C5/40
Filed: 1974-07-17
Abstract: Device for distributing metal fibres in concrete consists of a horizontal sieve carried by a frame suspended at one end by cables or similar means and attached at the other end to means imparting a horizontal oscillating motion with an adjustable amplitude and frequency. The frame is pref. suspended by cables or other means from a gantry mounted on a stand below the sieve, the other end of the frame being oscillated by an eccentric driven by a motor and redn. gear via a vertical shaft mounted in bearings located on the stand. The sieve pref. has the shape of an annular segment, or alternatively, it may be rectangular.
Patent FR-2282837-A1 (FR)
Title: Theftproof letter box with basculing obturator - pivoting via handle to open mouth and form tray which blocks access to base
IPC: A47G29/124
Filed: 1974-09-02
Abstract: The theft-proof letter box has a handle operated basculing obturator which pivots on a horizontal axle between box mouth closed and open stations, the pivoting via the handle to present the open mouth also raising a document reception tray into position where it effectively seals off the basal section of the box. Handle release effects a gravitational pivoting of the tray into a vertical hanging station inside the box together with closure of the box mouth. Pref. the trailing edge of the tray has teeth which engage slots in the rear box wall. The letter box may be used as a bank night safe.
Patent FR-2242170-A1 (FR)
Title: Hydraulic press for large workpieces - has tools which are fixed to tool holders which can move between open and closed position
IPC: B21D37/04
Filed: 1974-09-03
Abstract: Hydraulic press for large workpieces, esp. for sheet material, has tools which are fixed to a tool holder outside the press, which can move relative to each other between an open position, in which a tool change is possibly controlled by an operating device, and a closed position, in which it can be taken up in the press. gap. Further, there are means to move the tools between the open and closed positions and into and out of the press. gap. Specifically, there is a number of tool holders.
Patent FR-2244788-A1 (FR)
Title: Non-crinkling polyester-base photorelief printing plate - made by coating with a resin in a solvent/non-solvent medium
IPC: C08J7/02
Filed: 1974-09-20
Abstract: A coated self-supporting plastics film is produced by applying a soln. of a resin (I) in a solvent medium which contains 10-80 wt. % of a (I) non-solvent having a higher b. pt. and a lower rate of evapn. than the solvent. The process, which is esp. applicable to light-sensitive diazo-type materials, e.g. photorelief letter printing plates, overcomes crinkling tendencies which hindered focussing, yet dispenses with the need to plasticise the film (and decrease the adhesion of the coating). The film, which is pref. of biaxially oriented polyethylene terephthalate, is pref. first surface-treated to increase its adhesion to the coating.
Patent FR-2248056-A1 (FR)
Title: Hose-type medical probe - has balloon hose extended from folded position by inflation via opening
IPC: A61B5/00
Filed: 1974-10-16
Abstract: The probe is particularly for the insertion of measuring devices in the human gullet, and is equipped with balloon-type hose (2) folding into a fraction of its extended length. This has an inflation opening (4), by means of which it is blown out into the extended position. It can be folded or rolled up externally, or into itself by pulling the end in, and can comprise one section (1) relatively stiff, accommodating the second folding hose section (2), the first section being of metal or stiff plastic. A series of pull wires can be attached to the various folds to perform the folding operations from inside, with markings on them to show the positions of the folds.
Patent FR-2250222-A1 (FR)
Title: Power thyristor firing cct. - has pilot thyristor controlling gate current of main thyristor
IPC: H02M1/088
Filed: 1974-11-04
Abstract: The circuit is partic. applicable to high current equipment where high rates of change of current in the load are required. The anode and gate connections of the power thyristors are connected to the anode and cathode of the pilot thyristor whose gate and cathode are connected to an external firing circuit. Thus the load on the pilot thyristor is the combined gate load of the power thyristors and the associated balancing resistors. By this connection the rate of change of main gate current and main forward current are inter-related permitting high rates of change. On a circuit giving 2000A output a di/dt for the load current of 2000A/microsecond is suggested as possible.
Patent FR-2298739-A1 (FR)
Title: Automatic transmission hydraulic pressure regulator - has centrifugal governor controlling valve against spring
IPC: F16H61/02
Filed: 1975-01-24
Abstract: A stationary structure forms a bearing for a shaft whose speed is to be translated into a variable fluid pressure, the shaft being surrounded by a hub on that structure extending into an enlarged central bore of a mounting secured to the shaft. A centrifugal governor radially displaceable in the mounting against an inwardly directed biasing force, provided for example by a coil spring, controls a valve whose inlet port communicates with a fluid source through a first passage formed by the hub and whose outlet port communicates with a receiver for the fluid, such as a pressure-responsive valve, through a second passage formed by the hub.
Patent FR-2261224-A1 (FR)
Title: Sodium azide prepn. - with recovery of sodium hydroxide used in commercially usable purity and strength
IPC: C01B21/08
Filed: 1975-02-14
Abstract: Sodium nitride is prepared and separated from the mother liquor by a process in which the mother liquor contg. 35% NaOH, and 4-10% sodium nitride is contacted with ammonia soln. in a batch or continuously operating reactor. After a predetermined waiting period the mixture separates into upper and lower layers, the upper contg. water ammonia, NaOH and sodium nitride, the lower contg. a large amount of NaOH and water and a small amount of ammonia. The ammonia is removed from the upper layer and the soln. contg. the hydroxide and the nitride is recycled to the process to combine with the initial basic soln. of sodium nitride. The ammonia is removed from the lower layer giving an approx. 50% concn. aq. soln. of NaOH free from sodium nitride and ammonia which can be used for numerous industrial applications. The recycling eventually produces a soln. contg. 11-15% sodium nitride which can be crystallised out of soln. by evaporation. The prior art process was accompanied by a considerable loss of sodium hydroxide, the majority of which is recovered at high concn. in this invention. Extra processes involving use of extra NaOH to effect the separation are not necessary.
Patent FR-2302682-A1 (FR)
Title: Automatic vertical silage cutter - has bucket chain movable around L-shaped frame and discharging into container
IPC: A01F25/20
Filed: 1975-03-03
Abstract: The machine consists of a frame bearing driving wheels an endless chain on which are fitted buckets. The frame is supported by a trolley on two fixed wheels and one castoring wheel. A motor drives the chain and bucket assembly, cutting into the silage face. The cut silage is conveyed in the buckets to the rear of the machine and into a container. The machine is held against the silage face by an operator, who guides it by means of a handle. The frame supporting the driving wheels is L-shaped, the motor driven wheel being adjustable along a cross-brace.
Patent FR-2303239-A1 (FR)
Title: Liquefied gas cigarette lighter - has control shaft sealingly through sealing washer compressible between annular flanges
IPC: F23Q2/16
Filed: 1975-03-03
Abstract: A liquefied gas cigarette lighter has a liquefied gas reservoir below the burner mechanism and connected to the low pressure area (1) by a passage around the sealing washer (3). The upper face of a cylindrical lighter body part (6) has circular ridges (15) and (16) and the lower face of an internal cylindrical part (5) has the same size circular ridges (13) and (14). A shaft (4) sealingly passes through the washer and controls flow of fuel from the reservoir, the ridges (13-16) penetrating the washer to effect sealing. Small shaft movement effects sealing of the reservoir.
Patent FR-2310564-A1 (FR)
Title: Testing for softening temp of thin coatings - by determining the capacitance change beneath an indenter
IPC: G01N25/04
Filed: 1975-05-07
Abstract: The softening temp. of a thin (non-conductive) coating applied to the surface of a conductive substrate is determined by applying an indenting foot with controlled force upon the surface of the coating and monitoring the electrical capacitance of the foot/coating/substrate. The onset of softening is indicated by a sudden increase in the capacitance of the system. Method is used for detg. the softening point of thermoplastic coatings, and is more sensitive than simple mechanical displacement transducer test systems, applicable to thinner coatings, i.e. down to 1-2 mu.
Patent FR-2315989-A1 (FR)
Title: Fluidized bed reaction appts. - having bed support plates with nozzles converging in the gas flow direction
Inventor: MAYER IVAN
IPC: B01J8/44
Filed: 1975-07-01
Abstract: A fluidised bed reactor comprises at least one bed support plate whose gas flow nozzles depend downwardly from the plate and whose side walls converge towards their outlet ends in the upper surface of the plate. The nozzle walls are inclined to the vertical at an angle of no more than 30 degrees. Used esp. in the reduction of iron ores. The nozzles do not become blocked.
Patent FR-2277365-A1 (FR)
Title: Developing device for coated layer processing - has second heat exchanger unit coupled to wash fluid circulation cct.
IPC: G03D13/00
Filed: 1975-07-04
Abstract: In an addition to P2243276 a development device for photographic coated surfaces having and electrical, thermostatically controlled heating system for at least one of the processing solutions etc., has a second heat exchanger unit coupled indirectly to the first heat exchanger. The first heat exchanger opens directly into the processing container whilst the second heat exchanger lies on a separate circuit complete with a pump system which serves the washing liquid circuit. In a further development of this system, the second heat exchanger may open directly into the washing container and be attached to the developer container.