baber/WOPTO huggingface dataset:
Patent FR-2233639-A1 (FR)
Title: Microscope for birefractive material viewing in polarised light - has removable Bertrand lens arrangement between objective and eye-piece
IPC: G02B21/00
Filed: 1974-06-13
Abstract: The microscope has an optical arrangement which can be built into any microscope or, alternatively, used as required as a removable unit. The arrangement is a Bertrand lens system with a shutter, which slides into side grooves of the microscope carrier arm on a carrier plate. The optical system incorporates a double-sided mirror, a number of reflecting surfaces or mirrors, convergent and divergent lenses as well as a correction lens. One side of the carrier plate has two notches, either of which engages on a projection inside one of the side grooves of the carrier arm. When the first notch engages, the correction lens lies in the optical axis of the microscope for orthoscopic observations. The second notch brings one of the mirrors in the optical system into line with the optical axis.
Patent FR-2242209-A1 (FR)
Title: Water gauging process for concrete mixer - quantity related to aggregate moisture content and to mixing effort
IPC: B28C7/02
Filed: 1974-08-26
Abstract: Water gauging process for concrete weigh-batches-mixer. The quantity of water to be added to the mix, initially related to an electrically determined aggregate moisture content and specified water - cement ratio is finally fixed empirically w.r.t. mixing effort recorded on watt. meter 8. Initial mixing utilises less water than that indicated by the moisture content by a amount equal to the max. deviation; and when constant mixing effort is observed water is added until the empirically determined value for mixing effort is indicated. First phase water is added slowly with a uniform rate of decrease of mixing effort - second phase water being added somewhat faster.
Patent FR-2284881-A1 (FR)
Title: Carbon monoxide detection using semiconductors - with temp variation giving long term stability and methane detection
IPC: G01N33/00
Filed: 1974-09-11
Abstract: A method of determining the proportion of >=1 gas constituents in a gas mixture, esp. the CO constituents, utilises metallic oxide semiconductors which change their electrical resistance in the presence of reducing gases. The temperature of the metallic oxide semiconductor is periodically changed between two boundaries values, esp. an upper value 400 degrees and a lower value >-20 degrees C, and esp. at approximately room temp. This arrangement enables the high selective sensitivity to the presence of CO in the low temp. ranges to be utilised for detecting CO at the expense of other reducing gases, while the sensitivity in the higher ranges to CH4 and other hydrocarbons enables this end of the temp. range to be utilised for selectively detecting the presence of these constituents. The use of a periodically fluctuating temp. regenerates the semiconductor so that gases which have diffused into its surface do not modify its long term sensitivity.
Patent FR-2285190-A1 (FR)
Title: Piston-type cooled vibrator - has inlet and two outlet ports and cooling passages for driving fluid or gas
Inventor: WESTWOOD JAMES WILLIAM ALFRED
IPC: B06B1/18
Filed: 1974-09-20
Abstract: The cylinder has an inlet port (17) and two outlet ports (18) on opposite sides in the cylindrical walls, and there are two passages (22) in the piston (15). Each of these communicates at one end with the end chamber of the cylinder, and at the other with the piston periphery, these other ends being offset from each other in the axial direction. The cylinder and/or piston incorporates a tube with one or more cooling passages (24) for the driving fluid or gas from inlet and/or outlet ports. These passages run over half the periphery of the tube.
Patent FR-2289857-A1 (FR)
Title: Storage heater support frame - has inverted U feet supporting cross-members secured at one end only
Inventor: LAETHEM AUGUSTE VAN
IPC: F24H9/06
Filed: 1974-11-28
Abstract: The frame is of sheet metal sections, having two or more bases of such sections bent into inverted-U shapes, the free ends forming the feet. Parallel cross-members rest on the bases, the outer ones being secured to both, while the intervening ones are secured to one only. The central part of each inverted-U section can act as the supporting surface of the base, having a lower shoulder on one or both sides, also a free wing extending downwards. Two side portions of the free ends of the section can be partly separated from the central part by U-section grooves.
Patent FR-2290985-A1 (FR)
Title: Electric resistance pressure wlding of grids - made from bars and beams with pronounced difference in cross-section
Inventor: COYON CLAUDE
IPC: B23K33/00
Filed: 1974-11-12
Abstract: Process for joining two metal pieces which cross each other, by means of electric resistance pressure welding, where the two metal pieces possess a pronounced difference in cross-section thickness, the piece with the large section is provided with a continuous rib possessing a cross-section between 0.5 and 2 times that of the piece with the small section, and welding is achieved by applying the piece with small section to the rib. The process is pref. used to make a grid from profiled beams possessing a flange provided with a rib having the same cross-section as transverse bars which are welded to the ribs. Method permits the electric resistance welding of parts with a small cross-section to parts with a large cross-section.
Patent FR-2266827-A1 (FR)
Title: Hydrodynamic drive coupling - cover has ribs engaging in grooves on a rotary bowl type casing
IPC: F16D33/00
Filed: 1975-01-17
Abstract: The fottinger type hydro-dynamic joint is formed by a rotating bowl-shaped casing defining the working chamber in which bladed-wheels and the joint are placed. This casing has a cover which is fixed in such a way that it may be open along the bowl's edge which engages, through a flange, the collar extension of the cover. To the latter are bonded projecting ribs which fit in corresponding grooves in the casing. A flexible wire is inserted in a passage formed by two grooves which face each other, one groove being in the collar, the other in the flange.
Patent FR-2267149-A1 (FR)
Title: Electroless plating of low-density particles - using both a stirrer and gas bubbles to keep particles in suspension
IPC: B01J2/00
Filed: 1975-04-04
Abstract: Low-density particles are coated in an electroless plating soln. by (a) putting a suitable amt. of the soln. in a vessel; (b) adding a definite amt. of the low-density particles; (c) stirring so a vortex is obtd.; and (d) feeding a gas downwards along the wall of the vessel to keep the particles in motion for a prescribed time so that the correct plating is achieved. The pref. gas is air and the pref. device consists of a vessel with a stirrer and a ring jet made from a tube contg. numerous air outlet jets directed downwards into the soln. so that air or another gas under pressure can be fed down the walls of the vessel. Process is inexpensive and the device ensures a uniform deposit on the particles.
Patent FR-2281415-A1 (FR)
Title: Stable liquid adhesive composition - consisting of mixture of polymer latex and aqs soln of thermosetting resin
IPC: C08L21/00
Filed: 1975-08-06
Abstract: Liquid adhesive compsn. for bonding surfaces of manufactured prods. and bonding together particles and fibres, consists of 5-95 esp. 20-80 wt.% polymer latex (1) and 95-5 esp. 80-20 wt.% aqs. soln. of a thermosetting resin (II). The compsn. has excellent adhesion, good resistance to water and cracking, good durability and is suitable for a wide range of applications. I is pref. a polychloroprene latex. II is pref. a urea/formaldehyde or melamine/formaldehyde resin.
Patent FR-2328135-A1 (FR)
Title: Cardan joint bearing plate - is formed in two identical parts with radial grooves and mating pins and apertures
IPC: F16D3/42
Filed: 1975-10-17
Abstract: The cruciform bearing support ring of the cardan joint is made in two identical half shells which may be assembled by bonding or ultrasonic welding. Each half of the bearing ring has half cylindrical radial grooves out at 90 deg. to each other in the mating faces and also two pegs projecting from the face and on a diameter at 45 deg. to the bearing grooves. On the other diameter at 45 deg. to the grooves, are drilled holes to register with the pegs on the mating half. When placed face to face, the pegs register in the holes and the grooves from cylindrical bores for the bearing pins on each shaft.
Patent FR-2328812-A1 (FR)
Title: Building elements contg. air cavities - where cavities are coated with reflecting layer of metal to improve thermal insulation
Inventor: DUTRUEL FRANCIS
IPC: E04B1/76
Filed: 1975-10-21
Abstract: A honeycomb building element is improved where the element contains >=1 cavity forming a sheet of air, the cavity being open on at least one side of the element. The novelty is that at least the surfaces on opposite sides of the cavity are provided with a coating reflecting infrared radiation, the coating possessing a coefft. of emission below 0.7. The coating is pref. provided in all the cavities in the element, esp. using a base contg. metals. The pref. base is a resin contg. the fillers Al, Cr, Ni or Ag. Alternatively, a paint may be used as the base, and also contain the metal fillers. The coating may be applied by immersion or spraying, and a priming undercoat may be used. The coating reduces heat transfer by radiation occurring across the air cavities, without the need for an expensive lining of thermal insulation being included in the element.
Patent FR-2289572-A1 (FR)
Title: Curable silicone rubber compsns prodn. - with transformation into particles for easy mixing with filler
Inventor: SCARBEL MARCEL PAUL
IPC: B29C48/00
Filed: 1975-11-04
Abstract: A curable silicone rubber compsn. is made by (a) forming a mixt. of easily flowable particles from a viscous, adherent, cohesive silicone polymer and a filler pref. using solid CO2 and mechanical shear, (b) feeding the mixt. continuously to an intense mixing device, pref. a 2-roll rubber mixer, so that a plastic mass is formed, (c) evacuating the mass continuously from the mixer. pref. as a series of films and (d) shaping the mass, pref. by extruding and cutting up into pellets. The process allows easy and rapid mixing of the rubber with extending fillers, pigments and catalyst, without requiring a paste mixer.
Patent FR-2291061-A1 (FR)
Title: Mid engined load carrying vehicle - with power unit slung under and between chassis frame(NL180576)
IPC: B62D21/09
Filed: 1975-11-14
Abstract: A simple mid engined vehicle has its power unit slung beneath the chassis frame between the front and rear axles. The chassis frame has two longitudinal members to which are bolted cradle supports, which run under the power unit and which are linked to the power unit by elastic engine mountings. The upper end of the power unit is stabilised on the chassis by means of engine mountings to a chassis frame member. The vehicle can thus have simple, single axled supports with any load or trailer weight applied evenly in the middle. It is suitable for an articulated towing unit, with improved stability from the low centre of gravity of the power unit. The cab can be fitted as selected without interfering with the power unit.
Patent FR-2337883-A1 (FR)
Title: Determining amt. of chlorine (derivs.) in gas - by chemical luminescence, using two burners to perform Beilstein test
Inventor: MONTAMAT MICHEL
IPC: G01N21/72
Filed: 1976-01-06
Abstract: A gas contg. chlorine (derivs.) enters a lower burner comprising concentric tubular elements via an inlet assembly. Combustible gas enters via an inlet assembly which enters an external sleeve around the sample gas inlet. An adjusting block enables concentricity to be maintained. A window permits permanent checking of the primary flame. An indium covered copper element is located in the gas outlet from the burner which forms a duct to an upper burner with a window through which the luminescence is detected by a photomultiplier.
Patent FR-2298642-A1 (FR)
Title: Bleached mechanical pulp for paper mfr. - using two stage softening and bleaching treatment to obtain high strength and brightness
IPC: D21B1/16
Filed: 1976-01-21
Abstract: Process for mfg. bleached mechanical pulp or asplund with high-strength and -brightness by the mechanical breakdown of lignocellulose matl. softened by thermal and/or chemical treatment, and bleaching with a small quantity of a peroxide bleach with the formation of small amts. of oxygen consuming substances in the used, waste liqs. In a first stage (a) the wood is softened at a high pH value with the addn. of 10-30% of the peroxide necessary for bleaching but only that required to prevent the pulp becoming dark coloured in this stage; (b) in a second stage, the remainder of the peroxide is added at a low pH value, for bleaching. For (a), the pH is pref. 11-13.5, and for (b) 8.5-11, and the pref. bleach is H2O2. Optimum conditions can be used in the first stage of softening the wood to obtain a strong pulp without impairing the brightness and facilitating the bleaching in the second stage at a lower pH.
Patent FR-2345655-A1 (FR)
Title: Pipe joint with internal seal - has one pipe entering bell-shaped end of other and two sealing rings defining space to be filled with hardener
Inventor: VIGNERON PIERRE PAUL CAMILLE
IPC: F16L13/11
Filed: 1976-03-22
Abstract: One end of the pipe has is bell shaped (2) and has a flat face at the base of the bell (10) which then changes to a conical shape (14) followed by a reverse taper (9). The other pipe being joined has a parallel bore and is cylindrical on the outside. There is a taper portion at the end on the outside. The two pipe ends are pressed together with a tightening ring (16) between the ends. The space (21) will be filled with material which will harden, thus locking the two pipes together. A seal ring (7) occupies the space behind the hardening material.
Patent FR-2346901-A1 (FR)
Title: Radio wave aerial tuning circuit - compares increments of inductance and capacitance with known impedance in discriminating circuit
IPC: H03H7/40
Filed: 1976-04-02
Abstract: The circuit is for frequency tuning a radio aerial onto a determined valve amongst a multiplicity of other valves. That is by adjustment of inductance or capacitance. The circuit uses a number or elementary capacitors and inductances. It also has means for switching in and out these capacitors and inductances. This is to give the aerial a particular tuning valve for a determined frequency. The inductances and capacitors are mounted so as to provide equal equidistant inductance and capacitive valves. The method of automatically adjusting the aerial impedance using these inductances and capacitances as follows. Pairs of digital inductance and capacitance values are associated in succession with the aerial. A comparison is made, by means of a discriminator, of a magnitude corresp. to the resultant impedance and a reference magnitude. When the output of the discriminator is less than a predetermined valve the sequence is stopped.
Patent FR-2307582-A1 (FR)
Title: Low temp. plastics grinder - refrigerant passes through grinding and receiving chambers in counterflow after precooling material
IPC: B02C19/18
Filed: 1976-04-15
Abstract: The low temperature grinding system for e.g. plastics material, employs a cooling chamber, a grinding chamber and a collecting chamber interconnected by valve controlled lines to a compressor and counterflow heat exchanger so that the material to be ground is cooled by a refrigerating medium, then carried into the grinding chamber by a conveying gas, the refrigerant circulating in a closed circuit and cooled by heat exchange with a refrigeration circuit, while the conveying gas is cooled by the refrigerant circulating in a second closed circuit, the refrigerant passing in counterflow through the material to be ground then through the ground material. The refrigerant gas and/or the conveying gas are lighter than the refrigerating medium. The heat exchanger inside the cooling chamber is connected to the refrigerant supply by suitable pipes and to the counterflow heat exchanger.
Patent FR-2314753-A1 (FR)
Title: Disposable filter for intravenous liquid treatment - having rectangular plastic housing with microporous membrane
IPC: A61M5/165
Filed: 1976-06-15
Abstract: Gas liquid filter unit has two shells with depressions in them and surrounding flanges into which are set two semicircular openings for inlet and outlet. When the two sections are put together them form a housing and the openings become circular to accept pipes. A third member is mounted between the flanges the centre of which is a filter membrane. An inlet pipe is mounted between the upper shell and the the membrane. An outlet pipe is mounted between the lower lower shell and the membrane. The outer edge of the membrane, the flanges and the pipes are tightly joined together. A vent hole with a hydrophobic filter is provided on the upper shell. Used esp. for the filtration of liquids being prepared for intravenous treatments of patients to remove bacillae and solid particles which would cause blood poisoning. Obviously these must be very fine pore and completely sterile. Using the construction described, a low cost filter suitable for mass prodn. so that it can be thrown away after use can be produced.
Patent FR-2326449-A1 (FR)
Title: Polyester resin contg. filler treated with organo-titanate salt - increasing compatibility, flexural strength, impact strength, flow properties and gloss
IPC: C07F7/28
Filed: 1976-09-29
Abstract: Filled polyester resin compsn. contains a filler (I), which has been treated with an organo-titanate salt (II) of formula (RO)zTi(A)x(B)y or (RO(Ti(OAr)p(OCOR')q. In the formula, R is an opt. substd. monovalent 1-30C alkyl, alkenyl, alkynyl or aralkyl gp.; A is an opt. substd. monovalent thioaryloxy, sulphony, sulphinyl or diester (pyro)phosphate gp.; B is OAr or OCOR'; R' is H or a monovalent 1-100 C organic gp.; OAr is aryloxy; x+y+z=4, x and y are 1,2 or 3 and y is 0,1 or 2; and p+q=3). R' pref. contains a functional gp., pref. an olefinic, acetylenic, amino ror OH gp. In particular, (I) is treated with 0.1-5 wt. % isopropyl dimethlacryl isostearyl titanate or tri(dioctylpyrophosphate) titanate. (II) improves the compatability of (I) with polyesters. The mouldings produced from the compsn. have better flexural strength and modulus, impact strength, flow and gloss and these properties are retained even after ageing in the presence of steam or boiling water. In an example, the addn. of 1% (MeO)Ti(OCOCH:CH2)3 to a polyester casting resin increasing the flexural modulus from 1.1 to 2.8 x 10k kg/cm2 and the flexural strength from 2.5 to 4.9 x 102 kg/cm2.
Patent FR-2366157-A1 (FR)
Title: Dispositif d'ancrage de garnitures de friction sur des plaquettes de support pour freins a disque
IPC: F16D69/04
Filed: 1976-09-30
Abstract: Dispositif d'ancrage de garnitures de friction sur des plaquettes de support pour freins à disque. Sur la plaquette de support 1 sont prévues sur l'une de ses faces des empreintes en creux 3 qui sont remplies du mélange constituant la garniture de friction 2 lors du surmoulage de celle-ci sur la plaquette de support de plaquettes de L'invention est utilisée pour la réalisation de plaquettes de frein à disque.
Patent FR-2368283-A1 (FR)
Title: Accurately controlled blood dialysis machine using ultrafiltration - with a pump and control arrangement for controlling flow rates
IPC: A61M1/16
Filed: 1976-10-22
Abstract: A constant volume of dialysis liq. is kept in a circuit which includes one of the compartments of a dialysis unit and a means of withdrawing a determined quantity of dialysis liq. from the circuit, the quantity withdrawn being equal to the ultrafiltrate. Fresh-dialysis liq, is introduced continuously into the circuit and the used liq. is rejected at an identical rate. The liq. is degassed before being rejected from the circuit. The flow of dialysis liq. is maintained by two pumps with identical flow rates, mounted respectively at the inlet and outlet ends of the circuit. The volume of dialysis liq. present at any one time is reduced considerably compared with other units, the reduction being about 100:1. This leads to an overall reduction in the circuit size which brings several advantages when the machine is used in the home.
Patent FR-2385305-A1 (FR)
Title: Machine servant a travailler le sol
Inventor: LELY CORNELIS VAN DER
IPC: A01B33/06
Filed: 1976-11-26
Abstract: Invention concernant le travail de la terre. Machine pour travailler le sol, équipée d'organes de travail rotatifs à axes quasi verticaux disposes dans une rangée, qui reposent dans une partie de châssis, laquelle est montée sur une structure porteuse pouvant être accouplée à un tracteur. Cette partie de châssis est reliée à la structure porteuse pour pouvoir se déplacer en hauteur, par une liaison mobile qui coopère à cet effet avec des moyens de guidage. Application à la realisation d'une telle machine, difficilement endommagée par des pierres ou obstacles analogues.
Patent FR-2376227-A1 (FR)
Title: Electrolytic cell for prodn. of hydrogen-oxygen mixts. - has central insulating tube carrying the electrodes and fitted in gas-tight vessel
IPC: C25B9/17
Filed: 1976-12-30
Abstract: An electrolytic cell consists of electrodes of alternate polarity spaced along a central insulating tube. The assembly is contained in a gas-tight vessel which is provided with an outlet tube. The electrodes are disc shaped and are perforated. The central tube is fitted with a compressed air connector outside the vessel and is provided with a gas-dispersing palte at the lower end. A gas outlet is fitted to the top of the vessel. A heater for the electrolyte may be fitted.
Patent FR-2349049-A1 (FR)
Title: Sliding vane hydraulic pump - has springs under vanes to reciprocate vanes during cold start up
IPC: F04C2/344
Filed: 1976-12-30
Abstract: A sliding vane rotating pump for construction machines refuse vehicles, snow ploughs, etc, using a highly viscous hydraulic fluid is designed for efficient starting under very cold conditions. The pump has a fixed oval shaped outer body (16) with a set of ports (26) around it and a set of radial slots (12) for the vanes (14). It has circulating rings (34) around it end plates between the rotating hub and the sliding vanes (14) are V shaped springs (38). The length of these springs is sufficient cause a small reciprocation of the vanes over the regions of their shortest travel on starting up when resistance to slide of the pumps is high.
Patent FR-2337085-A1 (FR)
Title: Cover for food container - has reinforced circular holes with caps pressed in for opening
IPC: B65D17/32
Filed: 1976-12-31
Abstract: The cover is fitted with edge flanges (28) which are seamed over onto the flanges of the cylindrical body of the can. The centre part of the can is reinforced by folding a groove (24) around the outside. The centre part of the can is shaped with two bosses (29) which add strength to the flat portion of the lid. The lid is pierced by two circular holes each reinforced by means of a circular flange (40, 50). Each hole is plugged by means of a cap (34, 48) which fits up from under the lid and is sealed to the lid. The can is opened by pressing the lid downwards.
Patent FR-2360098-A1 (FR)
Title: Plaque de recouvrement pour elements optiques d'un appareil photographique
IPC: G03B17/04
Filed: 1977-03-02
Abstract: L'invention concerne une plaque de recouvrement pour l'objectif et le viseur et, éventuellement, pour d'autres éléments optiques d'un appareil photographique. Selon l'invention, le guidage de la plaque de recouvrement 5 est réalisé au moyen de rails de guidage 5c s'étendant verticalement, disposés en direction du déplacement, à distance des bords lateraux 5e de la plaque de recouvrement, ces rails étant assemblés de manière fixe avec la plaque de recouvrement et coopérant avec des pièces complémentaires lc fixées au boîtier de l'appareil photographique. Application : appareils photographiques.