baber/WOPTO huggingface dataset:
Patent FR-2284849-A1 (FR)
Title: Thin plate multi-panel radiators of great capacity - partic for atmos cooling of hot effluent from nuclear reactors
IPC: F28D9/00
Filed: 1974-09-16
Abstract: A flat radiator panel, its method of mfr. and a multi panel, high capacity heat exchanger are claimed, the panel being of the type comprising two rectangular metal plates with corresponding inter-plate ribs joined to form a series of transverse flow channels extending between two longitudinal passages along opposite edges of the panel. Each plate is made in extremely thin light alloy with a plate thickness 0.5 mm pref. about 0.3 mm, the overall thickness of a panel being 5 mm. ref. about 3 mm and the area of one panel face being about one square metre while the length of the panel is >1 m. The panels can be mass-produced at high speed by feeding two coils of light alloy sheet through corrugating rollers, joining the sheets by their ribs and shearing off panel lengths of the composite.
Patent FR-2297470-A1 (FR)
Title: Multi sheet selective information and or data display means - has sheet display control which consists of series of hinged push levers arranged along side of display
IPC: G09F11/02
Filed: 1975-01-08
Abstract: The multisheet selective information or data display means has a support frame (1) and a set of bars which are mounted so as to slide within the support frame. Uses a series of sheets on which the information is displayed. Each bar carries exclusively the total number of sheets relative to some of the information. The sheets are arranged one after the other along the length of the bar. The display has control means for selectively displacing each of the bars and for displaying and removing from display the sheets carried by a bar. The control means consists of a series of push levers which extend transversely to the bars. Each push lever is hinged at one end on the support frame, whilst the other end is free to displace itself angularly with respect to the frame and in the phase of it. The lever being connected to the bar or bars carrying the sheets relative to one piece of information to be displayed.
Patent FR-2301178-A1 (FR)
Title: Long duration anticockroach compsns. - contg. organophosphorus cpd. and water soluble or water dispersible film forming cpd.
IPC: A01N25/22
Filed: 1975-02-24
Abstract: Insecticidal compsns. for use against cockroaches consist of a water-soluble insecticide, e.g. an organophosphorus film-forming cpd., pref. a urea-formaldehyde resin. Pref. the compsns. consists of 100 pts. wt. crystalline, water-soluble insecticide; 100-300 pts. wt. film-forming cpd. and 1000-2500 pts wt H2O. In an example a compsn. consisted of 100 pts. wt. crystalline industrial organophosphorus insectide and 150 pts wt. urea formaldehyde resin. It was diluted to 600 g/l and sprayed on to walls and floors and any cracks of a building which was then infested with adult cockroaches. After one month no insects were present and protection was maintained for more than a year.
Patent FR-2303699-A1 (FR)
Title: Bicycle driven exercise accessory - has narrow rectangular base with extension bars coated with rubber or plastics
IPC: B62H3/04
Filed: 1975-03-12
Abstract: A frame to allow a bicycle to be used for exercise when stationary is of metal, plastics or both. A rectangular narrow-sided base (1) has four metal bars (2) extending from the narrow sides. The ends of these bars are coated with rubber, plastics or wood to prevent direct contact with the ground. At the centre of the long sides two vertical bars (5) can be welded, leaving a space between them for the rear bicycle wheel, whose hubs they support at a height slightly greater from the ground than the radius of the largest bicycle wheel available.
Patent FR-2304038-A1 (FR)
Title: Flue pipe of domestic room heater - is coaxial with circulating convected air pipe to regain heat from flue
IPC: F24B7/00
Filed: 1975-03-10
Abstract: The room contains a space heater burning any kind of fuel. The flue pipe rises from the back of the heater and runs up through the room before passing to the outside at a high level. An air pipe with an inlet at floor level in the room runs up through the centre of the flue pipe and coaxial with it. It continues through the top of the flue pipe and discharges at high level into the room. Alternatively, the air pipe may discharge into an adjacent room. The flow of air through this pipe may be by natural convection or it may be fan assisted. The air pipe may surround the flue pipe on the outside instead.
Patent FR-2279681-A1 (FR)
Title: Casting glass objects with a complex shape - using lost-wax pattern process in a ceramic mould
Inventor: RIEDEL CLAUS J
IPC: C03B19/02
Filed: 1975-04-09
Abstract: A ceramic mould, for mfg. complex glass objects, has the core and outer jacket made of a mixt. of 2-6 pts. vol. chamotte flour, 2-6 pts. vol. sepg. agent, and 2 pts. vol. hard mouldings gypsum plaster. The sepg. agent pref. has compsn. 50-70 wt.% quartz, 25-45 wt.% mica and 2-10 wt.% china-clay. The pref. uses a lost-wax pattern, esp. of beeswax or a mtal. with similar properties, the awax pattern being coated with a lacquer before investment i.e. to make the mould. An inexpensive mould which avoids the cost of a metal mould when only small numbers of the glass object are required.
Patent FR-2308095-A1 (FR)
Title: Electronic integration calorimeter - for water flowing through air conditioner, represents temp. difference and flow rate by pulse signals
IPC: G01K17/16
Filed: 1975-04-15
Abstract: An electronic integration calorimeter comprises a temperature difference detector for detecting a difference between the temperature of a heat medium flowing into a heat load and the temperature of the heat medium flowing out of the heat load, and a flow pulse generator for generating a flow pulse signal having the number of pulses proportional to the flow of the heat medium. The flow pulse signal is shaped by a pulse shaping circuit into a flow pulse signal having a predetermined pulse width. A temperature difference pulse generator generates a signal having the number of pulses proportional to the output voltage of the temperature difference detector, and is controlled by the shaped flow pulse signal so as to generate a pulse signal obtained by ANDing together the temperature pulse signal and the flow pulse signal.
Patent FR-2312844-A1 (FR)
Title: Measuring transformer with Hall effect probe - uses resilient rectangular core made of elastomer with probe in air gap
IPC: H01F38/30
Filed: 1975-05-29
Abstract: The measuring transformer has a magnetic core (1) made from interchangeable plates formed into a rectangle with an air gap in one of the long sides. The material used is of flexible material such as an elastomeric silicone which avoids magneto striction. The side with the air gap passes through a secondary coil (2) mounted on a former (2) with retaining lugs (12) at the air gap. Within this gap is positioned a Hall effect probe (5) mounted on support plate (6) secured by a globule of plastics material. This coil is housed inside a tube around which passes a large U shaped loop forming the primary. The primary and secondary coils are enclosed in a shroud with openings through the top for the ends of the primary coil.
Patent FR-2319950-A1 (FR)
Title: Shop window customer attraction system - uses animated images projected onto screens almost orthogonal to window
IPC: G09F19/18
Filed: 1975-07-28
Abstract: The advertising identification or attraction sign for a sales position has a screen (6, 7) carried on an housing (1) containing a projector (4, 5). The projection system projects onto the screen a series of animated images. The housing is fixed on the window of the shop, boutique approximately perpendicular to the plane of the window. The screen is pref. slightly inclined by about 15 degrees with respect to the vertical plane of the window. Pref. the arrangement is symmetric with two angled screens and projectors attracting people passing in both directions.
Patent FR-2283667-A1 (FR)
Title: Hair rinse composition - contains polyoxyethylene oleyl ether and alkylated or benzylated ammonium halide or alkyl sulphuric acid
IPC: C11D1/62
Filed: 1975-09-03
Abstract: Compsn. contains 0.1-10 wt.% polyoxyethylene oleyl ether and 0.1-10 wt.% of a cpd. of formula (I): (where R1-4 are each alkyl, hydroxyalkyl or benzyl, among which 1-2 gps. are alkyl or hydroxy alkyl of 8-20 C, and the rest are alkyl or hydroxyalkyl or 1-3C or benzyl; X is halogen or alkyl sulphuric acid radical). The compsn. can make hair flexible and smooth.
Patent FR-2324869-A1 (FR)
Title: Rotary engine with hollow cylindrical piston - has radial vanes creating variable volume chambers with timer controlled poppet valve
Inventor: VEATCH FRANKLIN
IPC: F02B75/02
Filed: 1975-09-19
Abstract: The rotary piston engine has a hollow cylindrical piston (24) rolling inside a casing (20) supporting by a low-friction bearing (56) on an eccentric (54) mounted on a shaft (50) coaxial with the casing. The outside dia. of the piston is 75-95% of the inside dia. of the casing and the whole moving assembly is so dimensioned that, as the piston axis moves in a circular path about the casing axis (32), the min. distance between piston and casing is small. Seals are fitted between the flat end faces of piston and casing, and there are several flat rectangular blades (60) constrained to slide radially in the casing so as to remain in permanent surface contact with the piston. Hence, an uneven number of variable volume chambers is created between piston and casing. Each chamber has poppet inlet (7o) and outlet valves, in a cylindrical part of the casing, operated by a timer on the main shaft (50). A spark plug may be fitted there.
Patent FR-2289255-A1 (FR)
Title: Electrohydraulic vibrator with flexible diaphragms - allowing transmission of axial motion but prevents any lateral motion
IPC: F03C7/00
Filed: 1975-10-10
Abstract: The electro-hydraulic vibrator has a base (2) with an electrically operated slide valve (1) which controls the flow of oil through the passages (9) and (10) to the chamber (11). The flexible diaphragm (3) which seals the chamfer (11) is secured to the base with the clamping ring (4) and bolts (13) and leakage is prevented by the seal (14). The diaphragm is attached by the bolt (5) to the disc (6) and slide (7) to which the vibration is transmitted. The thinner flexible diaphragm (18) which may be soldered or welded to the central bolt (5) and to the clamping ring (4) prevents any lateral motion of the slide (7). Rotation of the slide (7) is prevented by the dowel pin (21).
Patent FR-2336793-A1 (FR)
Title: Electron-optical appts. aperture plate - with thin region surrounding aperture and thicker integral reinforcement regions
IPC: H01J37/09
Filed: 1975-12-23
Abstract: An appts. for limiting the electron beam of an electron-optical device, comprises a completely open region or regions and, in addition, a uniform and consistent material, in two completely different thicknesses the thinner region of which is adjacent to the aperture and constitutes its surround while the thicker region constitutes a stiffening rib or frame. Pref. the continuous, cohesive material is a heavy metal, more specifically. Used partic. as the object aperture plate of an electron microscope. As the condenser aperture plate of an electromicroscope.
Patent FR-2301482-A1 (FR)
Title: Transporter roll for glass annealing lehr - coated or sleeved with ceramic to reduce heat transfer and wear
IPC: C03B35/18
Filed: 1976-02-20
Abstract: Transporter roll for a lehr for annealing sheets of glass is coated with a poor conductor of heat over those parts making contact with the glass sheets. The coating on the metal surface may be a cloth of ceramic matl. such as quartz fibres, woven into a sleeve a ribbon or a similar shape, or a compact layer of ceramic matl. The coating is pref. plasma sprayed Al2O3. Heat removed from the glass sheets on contact with the rollers is reduced, avoiding thermal shock damage. The speed of passage through the furnace may be increased giving increased prodn. rate. The surface of the roll has increased wear resistance and hence increased working life. Used rolls can be returned to their original dia. by increasing the thickness of ceramic insulator.
Patent FR-2345440-A1 (FR)
Title: Epoxide prepn. by dehydration of alkane diol - in contact with a basic catalyst
Inventor: SCHNEIDER GERARD
IPC: C07D301/02
Filed: 1976-03-22
Abstract: Epoxides are prepd. by contacting at 250-550 degres C, an alkane-1,2-diol, pref. ethylene or propylene glycol or butane-1,2-diol, with na basic substance such as a carboxylate, salt or hydroxide of a metal of Gps. I, II, or IIIa, partic. Na or K acetate, Na tetraborate, Na or Li orthophosphate, Na meta- or di-silicate. Process can take place in the vapour or liq. phase. Alkane-1,2-diols can be dehydrated by this process to give an epoxide as principal prod., without giving undesirable by-prods., e.g. acids.
Patent FR-2307346-A1 (FR)
Title: Fired on conductor on a non conducting substrate - for thick-film circuits
IPC: H01B1/16
Filed: 1976-04-12
Abstract: A non-conducting substrate is provided with a fired-on conductor in the form of a composite film by solidifying a first component in contact with a layer or zone of particles of a second component in such ways that at least a portion of the layer or zone of the second component extends into the first component, that at least a few particles are joined together, that the first and second components are adhering to each other by a physical-chemical bond, and that the relative portions of the components penetrate into at least a portion of the layer or zone, and are integrated so that a mesh-like structure is formed. Pref. the second component is a fusable electrically conducting substance and the first is a non-conducting substance. Pref. the second electrically conducting component of the composite film is a Ag-Pd alloy and the first non-conducting component is a mixt. of glass such as boron silicate, and Bi trioxide.
Patent FR-2348013-A1 (FR)
Title: Tool change for NC vertical mill - has cam tracks on spindle head to mechanically operate arm transferring tool from magazine
IPC: B23Q3/157
Filed: 1976-04-15
Abstract: The numerically controlled vertical mill has a tool changing magazine, cam tracks mechanically operating an arm to transfer a tool to the spindle nose and vice versa. Two cam tracks on the side of the spindle head actuate the followers as this head descends and retracts. One follower turns a crank wheel and a rack rotates a gear. This rotates a shaft and pivots the transfer arm upwards, removing the tool from the magazine. The second follower actuates another rack and gear, the loaded transfer arm swinging down and pivoting into the plane of the spindle nose to locate the tool.
Patent FR-2307976-A1 (FR)
Title: Fuel injection nozzle for compression ignition engines - delivery start is at a restricted rate
IPC: F02M63/00
Filed: 1976-04-16
Abstract: The valve member (13) is pressed on to its seat by a rod (18) which is surrounded by a bush n19) terminating at the valve member end as a flange (20). The flange makes a seal with an annular projection (22) in the bore surrounding the valve member by means of spring pressure (21). The annular chamber formed by the rod (18) the flange (20) and the upper part of the valve unit decreasing in volume as the valve lifts from its seat acting as a hydraulic check. A restricted passage is provided as an outlet for the fuel consisting of an annular chamber formed between the rod (18) and an annular lip (24) on the bush connected by a channel (26). The valve unit is able to lift at a restricted rate to permit the start of the injection to flow to the capillary opening.
Patent FR-2348771-A1 (FR)
Title: Sand mould and core binder contg. silicate - and non-reducing polyol release agent having at least two alcoholic hydroxyl gps.
IPC: B22C1/02
Filed: 1976-04-21
Abstract: Binder for sand casting-moulds and -cores consists of a mixt. of silicate and >=1 release agent for facilitating the release of blanks by removing the moulds and cores. Release agents consists, at least in part, of >1 non-reducing polyol, i.e. an organic cpd. other than a sugar, contg. >2 alcoholic OH gps. in its molecule. Silicate content can be reduced. Drying is retarded. Silicates having a high modulus may be used. Moulds and cores may be removed before cooling, enabling release of blank quickly after casting. Binders have improved storage stability. Castings have an improved surface.
Patent FR-2348975-A1 (FR)
Title: Alkali resistant leather prodn. in three stage treatment - by retanning, nourishing and waterproofing
IPC: C14C9/00
Filed: 1976-04-23
Abstract: The previously chrome tanned, divided and buffed leather is retained in a neutralised bath contg. synthetic and plant tannins. The leather is then given a nourishing treatment using an oil based on esters of 18-30C satd. fatty acids and 24-26C fatty alcohols. The treated leather is then waterproofed by impregnating for 2-3 hrs. using trivalent metal stearates on polyfluorane after adjusting the pH by acidification with acids such as citric or acetic acids. The leather obtd., tanned with 2.5% Cr2O3, retanned with 8-20% of the above agents, treated with 3-5% of the ester and waterproofed with 10-20% agent as above, when submitted to a Bally penetrometer test using a soln. representing alkaline sweat, absorbs 12% versus 60% control; its tearing resistance has dropped by 2% compared with 30% untreated and the appearance of the leather is unchanged. The leather is particularly used for making safety shoes, e.g. for workers on building sites etc. The leather is partic. resistant to sweat, cement and chalk.
Patent FR-2355202-A1 (FR)
Title: Bottom bracket axle for bicycle - has sleeve on crank side to act as inner race for thrust and needle bearings located by respective cages
IPC: B62M3/00
Filed: 1976-06-14
Abstract: The axle (1) has flanges which separate the central portion from the axle bearings. the crank side of the axle has a sleeve (21) which serves as the inner race for needle and thrust bearings. The needle bearings (22) are located by a cage (23), the thrust bearing being located by the cage (26). The outer race (27) is located in the housing (30). The housing has an external thread by which it is fixed to the cycle frame. A dust seal (36) is fitted to the outer end of the housing. The opposite end of the axle is similar without the needle bearings.
Patent FR-2321798-A1 (FR)
Title: Power supply for variable speed induction motor - uses motor flux as principal control parameter for variable frequency inverter
Inventor: PLUNKETT ALLAN BARR
IPC: H02P27/04
Filed: 1976-08-19
Abstract: The induction motor is supplied with variable frequency current from an inverter. The inverter is fed from a d.c. supply produced by a phase controlled rectifier. Motor current control is effected on the rectifier, and speed control on the inverter. As motor torque is a function of flux as well as frequency the motor air gap flux is employed as a control signal. A flux detector converts motor flux into a control signal which is compared with a reference value produced by the command logic. The error is fed through a compensation loop and converted into a control signal to change the inverter frequency such that the flux error tends to zero. Typically the flux error is converted to slip frequency and is compared with actual motor speed to produce the inverter control quantity.
Patent FR-2368703-A1 (FR)
Title: Histological inclusion appts. using paraffin - has single motor compressor unit for both heating and cooling paraffin to enclose specimen
IPC: G01N1/36
Filed: 1976-10-21
Abstract: The histological inclusion appts. for embedding specimens in a liquid paraffin block, uses a single motor-compressor refrigeration group, for both heating and cooling of the liquid paraffin. The compressor (1) forms part of the refrigeration circuit and allows the heating plate (2) for the paraffin and the storage dish (3) to be maintained at a temperature of about 60 degrees centigrade, the temperature being regulated via a thermal probe (4). The evaporator comprises a refrigeration plate (8) held at a temperature of about -5 degrees centigrade and the storage zone (9) for the liquid paraffin blocks held at about 2 degrees centigrade.
Patent FR-2370520-A1 (FR)
Title: Electrostatic material application to thin structure - supported on conductive plate of opposite polarity to material
IPC: D06B11/00
Filed: 1976-11-16
Abstract: The process applied by electrostatic spray gun material suitable for pulverisation to a think structure of very low conductivity, e.g. a cloth. A plate is used, with a surface formed by one or more components of low resistivity, and pulverisation is effected by an electrostatic generator. Each conductive component of the plate is polarised opposite to the pulverised material, typically by earthing. The this structure is brought into contact with the plate, and pulverisation is carried out near the latter, pref. over an area not going beyond its perimeter.
Patent FR-2372338-A1 (FR)
Title: Differentially operating hydraulic jack - has multiple flow holes for fast travel and single hole for slow travel
IPC: F15B15/22
Filed: 1976-11-26
Abstract: A hydraulic jack with an initial fast action followed by a slow regular action with controlled deceleration between has two annular discharge chambers (C1, C2). The first chamber (C1) is in line with a set of holes (T1 to T4) and the second (C2) is in line with a single hole (T5) for the respective fast and slow operations. These chambers are connected to a common discharge channel (E), the first, directly, and the second through a flow controller (1). The combined flow through all the holes (T1 to T5) ensures that the valve member (3) of the flow controller is permanently operating.
Patent FR-2339520-A1 (FR)
Title: Electrically driven power assisted vehicle steering - has torsion spring clutch to transfer electric motor torque to steering shaft
IPC: F16D41/20
Filed: 1976-12-08
Abstract: The steering shaft (10,11) has two clutches (12,13) which each respond in one turning direction only. The couplings are indentical and each consits of a flange plate (16) with a cylindrical wall fixed to the steering shaft. EAch cylindrical wall has a recess to accommodate the end of a torsion member (23). Each flange plate (16) and torsion member (21) is surrounded by a free rotating unit (24) provided with an external toothed ring (25), in constant mesh with a continuously running electric motor. The torsioning springs (30) have inwards turning edges to engage in the recess spaces each side of the torsion member. Rotating the input side of the steering shaft in one direction tightens the srping (30) so that the electric motor torque is transfered to the output side (11) of the steering shaft.
Patent FR-2380835-A1 (FR)
Title: Stabilised ferritic chromium stainless steel - with high resilience, mfd. by powder metallurgy
Inventor: BERGH SIGVARD
IPC: C22C33/02
Filed: 1977-02-21
Abstract: A process for mfg. a stabilised ferritic Cr stainless steel with high resilience in the welded state is described. The steel in the liq. state is atomised in Ar and the powder is compacted and sintered and hot or cold formed as desired pref. into strip. The steels can be used in welded constructions, Nitrides, carbides and carbonitrides of Ti in the steel only agglomerate slowly and grain growth is inhibited. The corrosion resistance and mechanical properties of these weldments are comparable to those of steels of similar compsn. but mfrd. conventionally. The compsn. of the liq. metal is pref. is not >0.03% C, is not >0.03% N, 10-30% Cr, is not >5% Ni, is not >3.0% Cu, is not >1.0% Si, is not >2.0% Mn, 0.5-4.0% Mo, C and N stabilising elements in quantities at least stoichiometrically necessary for carbide and nitride formation, and bal. Fe.