baber/WOPTO huggingface dataset:
Patent GB-1299363-A (GB)
Title: Monitoring of chemical, bio-chemical and biological reactions, particularly blood-clotting
Inventor: UR AMIRAM
IPC: G01N33/49
Filed: 1968-09-27
Abstract: 1299363 Electro-chemical analysis A UR 24 Dec 1969 [27 Sept 1968 2 Oct 1968 7 Oct 1968 30 Oct 1968 22 July 1969] 46141/68 46771/68 47540/68 51552/68 and 36850/69 Heading G1N The invention relates to determining the coagulation time of blood by measuring the variation in impedance relative to a sample in which coagulation is inhibited or delayed e.g. by addition of herapin or using a cell with a larger bore or a siliconized surface. It has been found that this comparative impedance falls to a minimum with coagulation and then increases, Fig. 3 (not shown) thus the zero of the differentiated signal may be used to determine coagulation. A compound cell arrangement, Fig. 5 (not shown), may be connected by a siliconized catheter to a patients vein and provided with an intermittent suction device for continuous monitoring of the patients blood condition. Cell construction (i) Fig. 2 (not shown), a glass capillary is painted internally with bands of Pt/Au paste and holes (drilled by ultrasonics) are filled with the paste to provide terminal connections. The tube is baked to set the paste. (ii) Four cells for bridge circuit connection may be formed in this way in a straight glass tube. The walls of the reference cells may be "siliconized", Fig. 5 (not shown), or the measuring section may have a reduced bore, Fig. 6 (not shown). (iii) The reference cells may alternatively be formed by a bore through a graphitesilicone-graphite sandwich. Circuits:-The sample and reference cells preferably are connected in an A. C. energized bridge either with conventional R-C balancing arms, Fig. 1 (not shown), or reference cells with small series and/or shunt adjusting resistors, Fig. 4 (not shown). A self-balancing bridge may be used. The bridge measuring arrangement may be used for examining e.g. bacterial or fungal cultures with a sterile reference cell or for recording the sensitivity of micro-organisms to antibiotics.
Patent GB-1423900-A (GB)
Title: Extrusion method and press
IPC: B21C29/04
Filed: 1973-08-03
Abstract: 1423900 Extrusion JOSEF GARTNER & CO 3 Aug 1973 [17 Aug 1972] 37008/73 Heading B3P An extrusion press has a multi-apertured die whose apertures are separately cooled by coolant fed to cooling ducts 18 from individual supply ducts 19, 20, 21 each provided with a flow regulating device such as a throttle valve. The coolant is gaseous such as air or nitrogen. The die has a fore plate (9a), (9b), Fig. 1 (not shown), and a back plate 10 each provided with a set of apertures. The cooling ducts 18 are formed in the fore plate which is in thermal contact with the die (8). The throttle valves are individually controlled to regulate the supply of coolant to their respective cooling ducts 18. The gas is expelled downstream of the die.
Patent GB-1464803-A (GB)
Title: Process for recovery of 1,3-dichloropropene from allyl chloride still-bottoms
IPC: C07C17/395
Filed: 1975-09-09
Abstract: 1464803 Removal of 1,3-dichloropropene from allyl chloride still-bottoms DOW CHEMICAL CO 9 Sept 1975 37043/75 Heading C2C 1,3-Dichloropropene is recovered, e.g. for use as a nematocide, from the still-bottoms, from the production of allyl chloride by chlorination of propylene, by contacting the still-bottoms with Cl 2  or Br 2  to selectively halogenate C 6  olefin components (including mono- or dichlorinated mono- and di-olefins) and subsequently distilling the dichloropropene from the still-bottoms. Preferably at least a stoichiometric amount of Cl 2  or Br 2  based on the C 6  olefin content as used but not more than 10 mole per cent of the 1,3-dichloropropene content of the still-bottoms. The treatment may be effected at room temperature, advantageously in the absence of actinic light. Alternatively cis- 1,3-dichloropropene may be distilled from the mixture after halogenation and the trans isomer isomerized, either concurrently or subsequently, by contact with Br 2  or I 2  in the presence of actinic light to a cis/trans equilibrium mixture.
Patent GB-521086-A (GB)
Title: Improvements in or relating to photographic cameras provided with photo-electric exposure meters
IPC: G03B7/12
Filed: 1938-12-22
Abstract: 521,086. Controlling exposures in photographic and kinematographic cameras. KODAK, Ltd. Dec. 22, 1938, No. 37274. Convention date, Dec. 22, 1937. [Class 98 (ii)] In a photographic camera provided with a photo-electric exposure meter, the photo-electric cell consists of two or more separate lightsensitive elements one or more of which may be selectively inserted in the exposure meter circuit by switch means under the control of one of the exposure controlling devices of the camera. As shown, the kinematograph camera 10 includes a photo-electric exposure meter, the coil 13 of which is in circuit with one element 14 of the photo-electric cell, which has additional elements 15 and 16 selectively connected in parallel with the element 14 by a switch 19 comprising bars 20, 21 and 22 biassed into contact by the spring 23. The diaphragm of the objective 11 is controlled by the position of the meter pointer 12. The camera 10 has a control knob 24 bearing a scale 25 co-operating with a mark 26 to indicate the setting of the shutter-speed mechanism. The knob 24 is on a shaft 27 carrying the speed controlling member and also a cam 28 adapted to control the switch 19 by a lever 29 with one end engaging the cam 28 and the other the bar 20. When the camera is set for a high speed the cam 28 is in a position to hold all three bars 20, 21 and 22 out of engagement and only the light-sensitive element 14 is in circuit with the coil 13. If the speed is decreased, the lever 29 rotates to permit first the bar 21 and then the bar 22, and correspondingly the lightsensitive elements 15 and 16 to be brought into circuit. The elements 14 and 15 are of equal size and the element 16 is of double size. An embossing on the film magazine may control a bell-crank lever moving a grid positioned immediately behind lenses spaced in front of the light - sensitive elements. Specifications 451,659 and 521,083 are referred to.
Patent GB-444086-A (GB)
Title: Improvements in or relating to needles
IPC: G09F3/14
Filed: 1934-12-31
Abstract: 444,086. Needles. DENNISON-VICTOR CO., Ltd., Minerva Road, Park Royal, London. (Assignees of Flood, C. A. ; Framingham, Massachusetts, U.S.A.) Dec. 31, 1934, No. 37321. Convention date, April 30. [Class 112] The tag of a label is fitted into a hole in the rear end of a needle and is thereby passed through the article to which the label is to be secured. The invention is shown as applied to labels of the kind described in Specification 444,085, [Group XV]. The label F has a strong loop-E to which is attached a metal or like tag. D. This tag is pushed into a hole C in the needle A. The needle is then pushed through the fabric, &c. G, taking the tag with it. The tag is then removed from the needle and the label is secured to the fabric G, Fig. 7. The needle may be pushed through the fabric G from left to right, the tag secured in its end, and the needle then pulled from right to left, Fig. 6. The needle may be solid with a bored end or may be made of bent strip of metal, Fig. 10.
Patent GB-1427347-A (GB)
Title: Azo dyes
IPC: C09B31/057
Filed: 1972-08-10
Abstract: 1427347 Monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 25 July 1973 [10 Aug 1972] 37353/72 Heading C4P New azo dyes, free of SO 3 H groups, of formula wherein the naphthalene nucleus may be further substituted, A is an aromatic carbocyclic or heterocyclic radical which may be substituted each of R<SP>1</SP> and R<SP>2</SP> being alkyl, aralkyl, cycloalkyl or aralkyl which may be substituted and the COOH group is directly attached to a carbon atom of a ring in A or the naphthalene ring, are prepared by azo coupling. The dyes are used to colour cellulose ester, synthetic polyamide, polyacrylonitrile, polyurethane and, in particular, polyester fibres and blends thereof with wool or cotton in red and blue shades.
Patent GB-326867-A (GB)
Title: Improvements in or relating to folding chairs and the like
IPC: A47C7/70
Filed: 1928-12-19
Abstract: 326,867. Hokanson, A. E., and Wells, E. G. Dec. 19, 1928. Tables combined with seats and the like.-A folding chair, settee, &c. is fitted with a folding tadle arranged so that, when the chair &c. is erected for use, the table is raised into position. Fig. 1 shows a folding chair consisting of side frames 10, 11 and X-frames 17 supporting a seat 14. At the side is a hinged table 21, which is hinged to the frame 10 by means of brackets 22, and is supported horizontally by a strut 24, hinged at 26 to the X-frame 17, and having a crossmember 28 which engages with a batten 27 on the under side of the table tray 21 and is secured by a latch 29.
Patent GB-1411975-A (GB)
Title: Process for the manufacture of a moulded article
IPC: C08L71/02
Filed: 1972-08-11
Abstract: 1411975 Manufacture of moulded article SOC D'APPLICATIONS DE PRODUITS INDUSTRIELS ET CHIMIQUES 11 Aug 1972 [16 Aug 1971] 37596/72 Heading C3N [Also in Division B3] A process for the manufacture of a moulded article, e.g. a foundry mould, comprises shaping a composition comprising a mixture of at least one granular filler and at least one acid-curing synthetic resin and then curing the mixture at ambient temperature with sulphuric acid formed in situ from either (a) gaseous or aerosol sulphur dioxide and an oxidizing agent for the sulphur dioxide or (b) a gas or aerosol of sulphuryl chloride, with the proviso that the compositon is not completely anhydrous. In the case of (a) the oxidizing agent may be a peroxide, a hydroperoxide, a hydroxyhydroperoxide, a chlorate, a perchlorate, chlorite, a hydrochloride, a perbenzoate, a metal oxide, a permanganate or monoperphthalic acid and, more particularly methyl ethyl ketone peroxide, hydrogen peroxide, and tertiary butyl hydroperoxide. The oxidizing agent may also be an oxidation, autoxidation or photo-oxidation product of a furane or cumene, optionally sensitized by the addition of a quinone, ketone, eosin or proflavin. Alternatively the oxidizing agent may be an aerosol or gas, e.g. Cl 2  or O 2 . The reaction of the curing agent takes place in two stages within the composition; first the gas or aerosol is converted into sulphuric acid, and then this nascent sulphuric acid causes a rapid curing of the composition. An inert gas such as nitrogen or carbon dioxide may be added to the gas or aerosol to assist the dispersion of the sulphur dioxide or sulphuryl chloride throughout the mixture. The gas or aerosol is preferably introduced at a pressure of 0.3-5 atmospheres gauge. The filler may be silica, concrete, zirconium oxide, sillimanite, carborundum, corundum or a gravel. A curing accelerator such as monophthalic acid, p-toluenesulphonic acid, benzene sulphonyl chloride, benzoquinone or hydroxylamine hydrochloride may be incorporated into the mixture. The resin may be a urea-formaldehyde, a phenol-formaldehyde or a furane resin which may be modified with furfuryl alcohol. Copolymers of these resins with epoxy compounds are also suitable and the resins may be silanized with gamma-amino-propyltriethoxysilane. Numerous compositions are specified in the examples.
Patent GB-761648-A (GB)
Title: Improvements relating to a spring assembly particularly adapted for fluid pressure actuated control apparatus
IPC: G05B11/50
Filed: 1954-12-30
Abstract: 761,648. Friction grip fastenings. BRISTOL CO. Dec. 30, 1954 [Jan. 5, 1954], No. 37642/54. Class 44. [Also in Groups XXIX and XXXII] The arms 11, 12, 11<SP>1</SP>, of a spring assembly (see Group XXXII), of a fluid-pressure actuated control apparatus (see Group XXIX), are adapted to be clamped together by bars 16, 17, retained by a friction grip fastening comprising bolts 18, 181, and a nut 20. The latter has a helically-profiled upper surface which is adapted to engage a respective slot 19 in each of the bolts 18, 18<SP>1</SP>. The nut 20 has a bearing-pin 21 engaging a recess in the bar 16, and is operated by a thumb-piece 23. The nut 20 may alternatively be formed with a hexagon shaped head for operation by a spanner.
Patent GB-969921-A (GB)
Title: Process for the manufacture of photographic colour images
IPC: G03C7/34
Filed: 1961-10-20
Abstract: The Specification describes compounds of the general formula <FORM:0969921/C1/1> wherein X is hydrogen or chlorine, Z is a linear or branched chain alkylene group and Y is dodecyl, hexadecyl, o -carbethoxydecyl or b -(p-iso-octylphenoxy)-ethyl. Examples are given of the preparation of such compounds by reacting the appropriately substituted acetophenone or benzaldehyde with hydroxylamine hydrochloride to give an oxime or aldoxime, reducing this to the corresponding amine and condensing the amine with 1-hydroxy-2-naphthoic acid phenyl ester, which may have a 4-chloro substituent.  p-(Lauryloxy)-acetophenone, p-(n-hexadecyloxy)-acetophenone and p-[b -(p-iso-octylphenoxy)-ethoxy acetophenone are prepared by refluxing lauryl bromide, n-hexadecyl bromide or the tolusulphonate of b -[p-(iso-octylphenoxy)]ethanol with p-hydroxyacetophenone and sodium hydroxide dissolved in ethylene glycol monomethyl ether.  p-(o -Carbethoxydecyloxy)-acetophenone is similarly prepared.  Similarly, n-hexadecyl bromide is reacted with o- or p-hydroxybenzaldehyde to give o- or p-(n-hexadecyloxy)-benzaldehyde.  Specifications 774,421, 831,731 and 906,808 are referred to.
Patent GB-902819-A (GB)
Title: Improvements in and relating to pre-fabricated furniture
IPC: F16B12/18
Filed: 1958-11-24
Abstract: 902,819. Cabinets &c. SPADOLINI, P. Nov. 24, 1958 [Nov. 30, 1957], No. 37705/58. Classes 52 (1) and 52 (2). An article of furniture is formed from a number of prefabricated, dismountably assembled elements held together by tensioned means, e.g. screwed rods and units 10, 11, 12, the elements 1, 5, 6, 9, 13, 17 being so arranged that the edges of each main pair are provided with co-operating projections and grooves forming complementary surfaces 3, 4, 7 of dihedral crosssection. Single and multi-tiered constructions are described.
Patent GB-807744-A (GB)
Title: Electric lamp positioner and retainer
IPC: H01R33/76
Filed: 1956-12-12
Abstract: 807,744. Lamp caps and holders. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 12, 1956 [Dec. 15, 1955], No. 38009/56. Class 38 (1). A projection lamp 12 is centred and retained in a holder by means of a ring of rectangular, resilient fingers 28 mounted on the holder and having rounded internal surfaces which snap over protuberances 22 or engage an annular groove or ridge on the cap 14 of the lamp. The fingers 28 are mounted on a shell 30 surrounding the insulating body 32 of the holder which has a central bush 38 with a locating keyway.
Patent GB-341895-A (GB)
Title: Improvements in and relating to a safety device for drop-down sporting guns
IPC: F41A19/54
Filed: 1929-10-17
Abstract: 341,895. Smallarms. FROMMER, R. VON, 158, Soroksari Ut, Budapest. Oct. 17, 1929, No. 38038/30. Divided on 341,939, [Class 119.] Breech actions, drop-down barrel. -The hammers 8 are provided with hooks 6 engaged by oounterhooks 3 which are movable in a direction at rightangles to the gun's axis when the safety bar 1 is operated. The hooks 3 and their actuating spring 5 are arranged in a straight transverse boring which also accommodates the pins 9 that indicate the position of the hammers.
Patent GB-1372122-A (GB)
Title: Illumination indicating apparatus for cameras
IPC: G03B17/20
Filed: 1972-08-16
Abstract: 1372122 Camera indicating devices AGFAGEVAERT AG 16 Aug 1972 [19 Aug 1971 (2)] 38258/72 Heading G2A A camera has a light emitting diode 5 controlled by a photo-sensitive receiver, the diode indicating when the brightness of the prevailing illumination is above or below a predetermined value. The diode may be connected in parallel with the photosensitive receiver so as to be lit when the prevailing illumination is below the predetermined value as shown, or it may be connected in series so as to be lit when the prevailing illumination is above the predetermined value, Fig. 2 (not shown). A transistor amplifier may be connected between the output of the receiver and the input to the diode, Fig 3 (not shown). The receiver is a photo-resistor as shown, or it may be a photo-sensitive controllable semi-conductor or device, e.g. a photo-thyristor, photo-transistor or a photo-field-effect-transistor.
Patent GB-1479704-A (GB)
Title: Vehicle having hydraulic brake system with proportioning valve
IPC: B60T8/26
Filed: 1975-01-15
Abstract: 1479704 Proportioning valves KELSEYHAYES CO 15 Jan 1975 [21 Jan 1974] 38270/76 Divided out of 1479703 Heading F2F The subject-matter is identical to that of the parent Specification 1,479,703, but the claims relate to a vehicle with a proportioning valve comprising a modulating piston acted on by an inertia mass directly and by a piston means responsive to fluid pressure in the valve. Preferably two pistons responsive to the inlet and outlet pressures'respectively of the valve act through the inertia mass.
Patent GB-896182-A (GB)
Title: Process and apparatus for separating solid substances suspended in gaseous media
IPC: B04C9/00
Filed: 1958-11-28
Abstract: 896,182. Electrostatic precipitators. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM ROESSLER. Nov. 28, 1958 [Nov. 29, 1957; Sept. 6, 1958], No. 38494/58. Class 39(1). In separating carbon black from a carrier gas, course separation takes place in two cycles 12, 14 before the gas, now containing 4 to 10 g/m<SP>3</SP> of carbon, is passed by a fan 16 into a cyclone 17 provided with earthed tubular electrodes 18 and wire electrodes (not shown). A.C. or D.C. may be used for charging the carbon black particles in the cyclone 17, the resulting groups of particles being separated out in a further cyclone 20. The remaining carbon black particles are carried by the gas into one or other of two chambers 21a, 21b where charged plate electrodes 22 attract more of the carbon black particles; before passing into a chamber 21 the particles may be charged by wire electrodes in a chamber 23a or pipe 27. Some of the gas flowing through an outlet pipe 24 is diverted by means of a fan 29 into the upper part of the chamber 21 to remove the carbon black from the plates 22 and into a pipe 26 which serves to remove the carbon black collected in the cyclones and the chamber 21. The electrodes may be vibrated or tapped to assist in removing particles. In a modification, Fig. 3, a pipe section 67 is used in place of the cyclone 17.
Patent GB-1070733-A (GB)
Title: Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen
IPC: G01N31/16
Filed: 1964-09-22
Abstract: Nitrogen, in the form of ammonia, is liberated from solid or liquid material in which nitrogen is bound as ammonium, urea, nitrate or nitrite by a process involving the reduction of the material or part thereof in alkaline solution by means of a Devarda alloy and/or the reaction of the material or part thereof with an alkali metal hydroxide or carbonate, wherein the reaction when using Devarda alloy is performed in an amount of water not more than 5 times the weight of Devarda alloy plus sample on a water-free basis, or when using alkali metal hydroxide or carbonate in the absence of Devarda alloy, is performed in an amount of water not more than 40 times the weight of the sample on a water-free basis, and the ammonia evolved is expelled from the reaction vessel with the aid of a stream of inert gas via a mist trap maintained at a temperature exceeding 100 DEG  C. All nitrogen present in the material may be liberated by reaction with Devarda's alloy and alkali preferably preheated to 40 DEG  C., the heat needed being derived from the reaction of alkali and alloy. The material may be treated with an oxidant (e.g. sodium hypobromite) in the presence of NaOH or NaHCO3 to remove nitrogen bound to hydrogen (i.e. NH4 + and urea), the excess hypobromite removed by treatment with sodium sulphide and the residual material treated with Devarda's alloy to liberate nitrate- and nitrite-bound nitrogen. The ammonia liberated may be absorbed in water or acid and then titrated, thereby estimating the nitrogen content of the material.
Patent GB-1420045-A (GB)
Title: Holographic recording medium
IPC: G11B7/24035
Filed: 1973-08-16
Abstract: 1420045 Laminated products RCA CORPORATION 16 Aug 1973 [18 Aug 1972] 38709/73 Heading B5N [Also in Division G2] A holographic record medium is composed of a laminate comprising a planar, synthetic resinous film or tape 1 which is inert and dimensionally stable in the conditions of a subsequent electro-forming process and which has bonded thereto, by a co-extensive adhesive layer 2 which will not degrade during such electroforming process, a vinyl polymer having on its outer surface holographic information embossed as a three-dimensional relief pattern and also cut audio information, the substrate and adhesive layers extending beyond the vinyl film whereby to provide improved adhesion of an electroplated metal layer subsequently applied. The substrate may be of polyethylene terephthalate, suitable adhesives, which may be applied as a melt or solution by doctor blade, roller coating or spraying, being a polyester derived from ethylene glycol, terephthalic acid and sebacic acid or a polyurethane. The vinyl film may be of plasticized polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate and may contain up to 20% by weight of a polyester or acrylic plasticizer. The medium may be made by applying the bonding resin to the substrate, guiding the vinyl film and the coated substrate to a preheated metal embossing master, e.g. a drum having a nickel master thereon, pressing the coated substrate and the film against the master with the vinyl film in contact therewith to provide a laminate having holographic information embossed therein, and cutting the audio information into the vinyl film, e.g. along the edge thereof with a stylus.
Patent GB-1100935-A (GB)
Title: A method of producing boron carbide
Inventor: OGURA HIROKATSU
IPC: C01B31/36
Filed: 1966-08-31
Abstract: Boron carbide is prepared by heating a mixture of boric oxide, carbon, and boron nitride at above 2000 DEG  C., the amount of boron nitride used being 5-90 wt. per cent of the boric oxide. The boric oxide and born nitride may be prepared in situ by heating at 500-1000 DEG  C. a mixture of orthoboric acid, carbon, and a nitrogen-containing compound which will react with the orthoboric acid to give boron nitride under the given conditions.  The nitrogen-containing compound may be dicyandiamide, melamine, or ammonium chloride, and is used in an amount greater than 5 wt. per cent based on the orthoboric acid.
Patent GB-920985-A (GB)
Title: Improvements in and relating to the degenerate doping of germanium semiconductor materials
IPC: H01L21/24
Filed: 1961-10-31
Abstract: 920,985. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 31, 1961 [Nov. 4, 1960], No. 38880/61. Class 37. A germanium crystal suitable for a thermal diode is produced by doping with zinc to a concentration of approximately 2.6 x 10<SP>18</SP> atoms per c.c. which is about saturation level. Fig. 1 shows a quartz reaction chamber 1 with zinc 3 at one end maintained at about 650 F. and germanium wafers 4 at the other end at a diffusing temperature of 775 C. In two examples diffusion was effected for, respectively, 264 hours and 400 hours, the wafers then lapped and soldered to a metal strip using Sn. Ga. An alloy junction was made on the opposite face using a tin and one atomic per cent arsenic alloy to provide a tunnel diode.
Patent GB-1461067-A (GB)
Title: 2-amino-pyrroline derivative and its conversion to pyrrolidone-2
IPC: C07D207/263
Filed: 1975-09-23
Abstract: 1461067 Pyrroline and pyrrolidine derivatives STAMICARBON BV 23 Sept 1975 [26 Sept 1974] 38996/75 Heading C2C The novel compound 2-(N-γ-cyanopropyl) amino - #<SP>1</SP> - pyrroline is obtained by heating γ - aminobutyronitrile. 2 - Amino - #<SP>1</SP> - pyrroline may be obtained as a by-product. Pyrrolidone-2 may be obtained by hydrolysis of the above novel compound.