baber/WOPTO huggingface dataset:
Patent GB-1203644-A (GB)
Title: Improvements in or relating to a stop motion device for a machine carrying a thread supply
Inventor: RYDBORN STEN-AAKE OLAUS
IPC: D03D47/00
Filed: 1967-09-06
Abstract: 1,203,644. Weft stop-motions. S. A. O. RYDBORN. 6 Sept., 1967 [7 Sept., 1966], No. 40639/67. Heading DIE. A stop motion for a machine such as a shuttleless loom in which a weft thread is drawn intermittently from a supply is operated on cessation of an electric signal produced by the running of the thread over a sensing element during a thread detection period. The senser is preferably of the piezeoelectric type, Fig. 8, in which the thread runs in a slot 21 on a rod 23 of piezeoelectric ceramic material held between springs 24, 25. A high frequency electric signal of the order of 30 kilocycles is produced in the cable 32. This signal is applied to the circuit of Fig. 1, first passing through three amplifier stages TR1, TR2, TR3 to give a signal in the form B. This amplied signal then passes to a circuit TR4-TR7 which controls a relay 20 in the machine circuit to stop the machine on cessation of the signal at A on breakage of the thread. To ensure that the relay 20 is not operated during the periods between weft insertions when the thread is not being withdrawn a mechanical switch 30 driven by the machine controls the circuit TR4-TR7. In addition a parallel photoelectric circuit 40, operated by a member 50 attached to the weft inserter, also controls the relay 20 to ensure that, on release of the thread at the selvedge, the relay 20 is not operated. Other forms of senser may be used such as a piezoelectric generator of the crystal type, a photoelectric signal generator, a resistance signal generator or a capacitor signal generator.
Patent GB-1406411-A (GB)
Title: Friction materials
IPC: C08J5/14
Filed: 1972-09-04
Abstract: 1406411 Friction lining material JURID WERKE GmbH 4 Sept 1972 [4 Sept 1971] 40971/72 Heading C4X A brake or clutch friction lining material comprises an inorganic non-metallic friction material binding agent and reinforcing carbon fibres or carbonized fibres derived by pyrolysis from a material comprising an organic compound, e.g. in a binder to fibre ratio by volume of 99 : 1 to 10 : 90. The inorganic binder may be glass frits, clay mixes, stoneware, earthenware, porcelain, Al 2 O 3  based materials, cordierite mixes, steatite mixes, wollastonite mixes, spinels, forsterite mixes, lithium aluminium silicates, magnesium oxide, beryllium oxide based materials, rutile mixes, titanates, ferrites, phosphate bound materials and metal sulphideforming materials. Thus fibres may be derived from synthetic or natural high polymers, e.g. polyacrylonitrile, rayon, cellulose, tar, pitch, bitumen or other petrochemicals. The lining material may also include one or more materials modifying the friction properties and/or materials altering the heat conductivity, e.g. lubricants such as graphite, molybdenum disulphide, cumarone resins, epoxide resins, colophony and rubber, grinding agents such as silicon carbide or corundum, asbestos, ceramic powder such as zirconium, aluminium, magnesium and silicon oxide, silicates, sillimanite, mullite, metal salts such as barium sulphate or carbonate, metal powders such as iron powder.
Patent GB-1190637-A (GB)
Title: Production of Impact-Resistant Styrene Copolymers.
IPC: C08F2/18
Filed: 1967-09-08
Abstract: 1,190,637. Impact-resistant styrene-acrylonitrile copolymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 Sept., 1967 [10 Sept., 1966], No. 41116/67. Heading C3G. Impact-resistant styrene copolymers are produced by polymerization of styrene and acrylonitrile in the presence of a homopolymer and/or copolymer of butadiene, wherein at least 40% but less than 100% by weight of the acrylonitrile used is not added until after the homogeneous rubber-monomer phase has formed a disperse phase. The polymerization may be carried out in solution or in bulk, either entirely or until formation of the disperse phase, after which the polymerization may be completed in suspension in an aqueous medium. In the examples, (1) a solution of polybutadiene in styrene and acrylonitrile is polymerized to form a prepolymer, to which are added acrylonitrile and styrene before completion of polymerization in an aqueous medium, (4) a solution of a butadiene-styrene rubber, styrene and acrylonitrile is polymerized as in Example 1, (7) a solution of polybutadiene in styrene, acrylonitrile and ethyl benzene is polymerized continuously in a series of three vessels, acrylonitrile being pumped into the third vessel, (9) a solution of a stereospecific butadiene-styrene rubber in styrene, acrylonitrile and isopropylbenzene is polymerized continuously in a series of five reactors, additional acrylonitrile being supplied to reactors 2 and 3, and (11) the process of Example 9 is repeated, except that the rubber is polybutadiene.
Patent GB-1521749-A (GB)
Title: Vehicle seat belt reels
IPC: B60R22/35
Filed: 1975-10-09
Abstract: 1521749 Seat belt reels CHRYSLER UNITED KINGDOM Ltd 14 Sept 1976 [9 Oct 1975] 41483/75 Heading A3V Seat belt 10 is attached to spring-biased drum 11. Resilient tongue 15 contacts the wound belt to disengage pawls 13 from ratchet teeth 12 to allow initial belt protraction. A friction device (not shown) permits steady protraction but a subsequent small retraction by the spring followed by further protraction locks the reel. Pressing plunger 21 causes fluid pressure to act via conduit 19 to expand bellows 18 to tilt the pawls out of engagement. In Fig. 2, when two buckle portions (not shown) of the belt are engaged a Bowden cable locks the reel. Pressure in conduit 29 moves piston 24 to move pawl 27 to allow belt protraction without unbuckling.
Patent GB-1531319-A (GB)
Title: Substantially azeotropic ternary compositions and their use in the preparation of polyurethane foam
IPC: C07C19/12
Filed: 1976-10-06
Abstract: 1531319 Blowing agent for polyurethane foams ALLIED CHEMICAL CORP 6 Oct 1976 [8 Oct 1975] 41572/76 Heading C3R Polyurethane foams are prepared in the presence of a blowing agent which comprises a composition of 72 to 99% by weight of trichlorofluoromethane, 0À5 to 15% by weight of isopentane and 0À5 to 13% by weight of methylene chloride.
Patent GB-1488384-A (GB)
Title: Selector valve device
IPC: A61M16/20
Filed: 1974-09-24
Abstract: 1488384 Valves SANDOZ Ltd 24 Sept 1974 [28 Feb 1973] 41600/74 Heading F2V A selector valve device for breathing apparatus has a valve 20 in each of two or more bores 14, an outlet bore 22 which communicates via passages 26 with the outlet ends 18 of the bores 14, and an actuator 11 which can be positioned to selectively open the valves. As shown the rotary actuator 11 has a spring loaded ball 30 which can be positioned in turn over each of three bores 14 to open the respective valve 20 via a pin 32.
Patent GB-1448914-A (GB)
Title: Power supplies
IPC: H01L27/082
Filed: 1974-09-25
Abstract: 1448914 Transistor circuits INTERNATIONAL BUSINESS MACHINES CORP 25 Sept 1974 [10 Nov 1973] 41645/74 Heading H3T A logic circuit power supply comprises: two integrated circuits each having a pair of transistor T1<SP>11</SP>, T2<SP>11</SP> T1<SP>111</SP>, T2<SP>111</SP> with the base collectors reciprocally coupled, the transistor T1<SP>111</SP> operating in an inverse mode so that the electrode coupled to the base of transistor T2<SP>111</SP> is effectively an emitter; a reference voltage source V coupled to the emitters of the transistors T2<SP>11</SP>, T2<SP>111</SP>; a first impedance R1 connected between the collector and emitter of transistor T2<SP>111</SP>; a connection between the collector of transistor T1<SP>111</SP> and the base of transistor T1<SP>11</SP>; a second impedance R2 connected between the emitter and base of T1<SP>111</SP>; and a connection between the emitter of transistor T1<SP>111</SP> and the base of transistor T2<SP>11</SP>, which also provides a connection for an associated logic circuit. In operation, V BE  < V < 2V BE  and resistor R1 supplies extra base current to transistor T1<SP>11</SP> producing collector current which in turn provides base current for transistors T2<SP>11</SP>, T2<SP>111</SP> so that these draw collector current. Transistors T1<SP>11</SP>, T2<SP>11</SP> operate as a reciprocally coupled pair so that the current increases until T1<SP>111</SP> turns on. As its collector is coupled to the base of transistor T1<SP>11</SP> additional base current is withdrawn from T1<SP>11</SP> and less curent is available to the bases of the logic circuit transistors T2, T2<SP>1</SP>. This current is dependent on the surface ratios of transistors T2, T2<SP>1</SP> and also on the ratio base/emitter voltage of T2<SP>11</SP> to R2, and has good temperature stability. The logic circuit comprising transistors T1, T2, T1<SP>1</SP>, T2<SP>1</SP> is a NOR gate of the type described in Specification 1,284,257, the transistors T1, T1<SP>1</SP> also operating in the inverse mode.
Patent GB-819714-A (GB)
Title: Improvements in or relating to eliminators for removing entrained liquid from a gaseous stream
IPC: B01D45/14
Filed: 1956-12-18
Abstract: 819,714. Centrifugal separators. CARRIER ENGINEERING CO. Ltd. Dec. 18 1956 [April 2, 1956], No. 41920/58. Divided out of 819,713. Class 23 In a device for removing liquid from gas comprising a rotor 14 having blades 15, each blade has at least two planer members 35, 36 which intersect in a line contained in a radial plane of the rotor. As shown the device is installed at the outlet end of a liquid-gas contacting apparatus comprsing a casing 2, a motor-driven fan 7 at the inlet end of the casing, and nozzles 12 for spraying liquid between the fan and the device. The rotor may be driven by a motor 19 or it may be driven by the passage of gas through the apparatus. A conical member 16 fixed to the ends of the rotor blades discharges separated liquid from its larger end into the casing which has an outlet 13 for liquid. Gas passes axially through the rotor purified gas being discharged from the casing through an outlet formed by a flange 17. Specification 795,208 [Group XXIX] is referred to.
Patent GB-910334-A (GB)
Title: Process for producing organosilicon compounds
IPC: C08G77/08
Filed: 1960-12-06
Abstract: Organosilicon compounds of the formula <FORM:0910334/IV(a)/1> wherein each R is a mono-valent hydrocarbon radical (saturated or unsaturated) with or without, as substituent, a halogen atom, or an amino, hydroxyl, cyano, carbalkoxy, aminoalkylamino, alkoxy or aryloxy group, R1 is an alkyl radical or H atom and n is at least 1, are condensed in the presence of a catalytic amount of a compound of the formula (R11COO)aM, wherein M is Hg, Th or Pb, a has the value of the valency of M and R11 is a monovalent aliphatic hydrocarbon radical.  Preferably the salts are derived from alkanoic acids of 2 to 10 C atoms, e.g. mercuric, acetates, lead and thallous propanoates, butanoates and octoates. The catalyst is generally used in amount from 0,01 to 20% by weight of the starting material and the process can be effected at a temperature from 25 DEG  to 170 DEG C. with continuous removal of water or water and alcohol produced as a by-product.  If desired the starting material and catalyst may be dissolved in an inert solvent.  After completion of the reaction the catalyst may be removed, such as by washing with water.  The products may be oils or gums, and intermediate products containing Si-bonded OH or OR groups may be end-blocked by reacting with trihydrocarbon-halo-silanes.  If desired, alkoxysilanes may be co-condensed with the starting material to yield siloxanes containing functional groups.  Products containing alkenyl radicals can be cured through these radicals to yield gums, and products containing alkoxy radicals can be hydrolysed to yield resins.  In a typical example (1) a mixture of HO[(CH3)2SiO]H20 and mercuric acetate was heated at 150 DEG C. for 40 hours to give a siloxane gum.  Uses: For producing elastomers, and as hydraulic fluids.
Patent GB-1536298-A (GB)
Title: Transfer paper and utilisation of it
IPC: B44C1/17
Filed: 1976-10-11
Abstract: 1536298 Transfers MDV MARKTSERVICE FUR DEKORATION UND VERPACKUNG GmbH 11 Oct 1976 [11 Oct 1975] 42181/76 Heading B6C A transfer comprises a backing paper layer, a release or peelable coating and an image layer in that order, wherein the release or peelable coating comprises a natural adhesive, a synthetic water-soluble adhesive and a wax-like release or peeling agent. The natural adhesive may be starch, alginate or blood albumin. The synthetic adhesive may be methyl cellulose, carboxymethyl cellulose, or polyvinyl alcohol. The wax-like agent may be a metal soap or a chromium or aluminium complex salt. The release or peelable coating may also include a synthetic water-insoluble plastics material, e.g. a polyolefin or a polyfluorohydrocarbon, and a primer layer be applied between the backing paper and the release or peelable coating. The image may be removed from the backing paper layer by compressed air, and held on a carrier by suction, the carrier then being applied to the surface to be marked, and compressed air used to apply the image, preferably by bulging a flexible surface of the carrier carrying the image.
Patent GB-1066901-A (GB)
Title: Synthesis of í¸-bisdehydrooestrone 3-ethers
Inventor: WHITEHURST JOHN STANLEY
IPC: C07J1/00
Filed: 1962-11-08
Abstract: Steroids of formula <FORM:1066901/C2/1> wherein R is a hydrocarbon group and R1 is H or an alkyl group, are prepared by reacting a 6 - hydrocarbonyloxy - 1 - vinyl - 1 - tetralol with cyclopentane-1,3-dione or a 2-alkyl derivative thereof to form a compound of formula <FORM:1066901/C2/2> and subjecting this to cyclization, under mild conditions.
Patent GB-1479162-A (GB)
Title: Substituted thiadiazole-2-thiol compounds and the preparation thereof
IPC: C07D285/125
Filed: 1974-09-27
Abstract: 1479162 5-Substituted thiadiazole-2-thiols FUJISAWA PHARMACEUTICAL CO Ltd 27 Sept 1974 [12 Oct 1973 18 Jan 1974] 42194/74 Heading C2C The invention comprises compounds of the formula wherein A is a (C 1 -C 6 ) alkylene group, and R is an amino group which may be substituted by (C 1  -C6) alkanoyl or (C 2  -C 7 ) alkoxycarbonyl, or is a hydroxy group which may be substituted by (C 1  -C 6 ) alkanoyl; and salts thereof. They may be obtained by reacting a salt or an ester of dithiocarbazic acid of the formula with a dehydrating agent to give a compound of the formula wherein R 1  is an amino group which may be substituted by (C 1 -C 6 ) alkanoyl or is a hydroxy group, followed by (1) when R 1  is an amino group which is substituted with a (C 1 -C 6 ) alkanoyl group, hydrolysis to give a compound of the formula (2) when R 1  is an amino group, reaction with a reagent capable of introducing a (C 2 -C 7 ) alkoxycarbonyl group on the amino group to give a compound of the formula wherein R 2  is a (C 2 -C 7 ) alkoxycarbonyl group; or (3) when R 1  is a hydroxy group, acylation with an acylating agent of the formula wherein R 3  is a (C 1 -C 6 ) alkanoyl group, or a functional derivative thereof to give a compound of the formula and further when required converting the resultant compound into a salt thereof. A cephalosporin derivative of the formula may be obtained by reacting 7-(2-thienylacetamido)-cephalosporamic acid with 5-aminomethyl-1,3,4-thiadiazole-2-thiol. A compound of the Formula II above may be obtained by reacting a compound of the formula with CS 2  in the presence of a base.
Patent GB-1436405-A (GB)
Title: Fire detectors
IPC: G08B17/103
Filed: 1973-09-10
Abstract: 1436405 Photo-electric fire detectors ANGLO AMERICAN CORP 10 Sept 1973 [13 Sept 1972] 42375/73 Heading G1A A fire detector comprises a housing 10 containing a light source 14 mounted to shine through any combustion products admitted by at least one opening 26, on a photo-detector 22 via a narrowband interference filter 24; and means (not shown) responsive to the photo-detector 22 to operate an alarm. Preferably the filter 24 passes radiation in the 4À27 micron absorption band of carbon dioxide. The source 14, having a ribbon filament of oxidized Ni-Cr alloy, is pulsed at a frequency of order 17Hz to give the detector output a substantial A.C. component for convenience in signal processing. A first concave reflector 12 surrounds the source 14, which source is at the focal point of an opposed second reflector 16 having a window 18 of sapphire or the like to seal a chamber defined by the reflectors and allow rays 20 to pass out through the filter 24 to the indiumantimonide photo-detector 22. Interference from dirty reflectors or atmospheric dust may be overcome by sampling rays of a wavelength different from that selected by the filter 24, so as to control the sensitivity of the alarm generator. Similarly a differential alarm device may be used to set a threshold corresponding to ambient atmospheric CO 2 .
Patent GB-1284344-A (GB)
Title: Production of hydrogen and atmospheres containing hydrogen
IPC: C01B3/48
Filed: 1970-09-04
Abstract: 1284344 Hydrogen-containing atmospheres ALCO STANDARD CORP 4 Sept 1970 [5 Sept 1969 14 Aug 1970] 42398/70 Heading C1A [Also in Division C5] A hydrogen-containing atmosphere is produced by treating a hydrocarbon to obtain hot gases containing H 2  and carbon oxides, quenching the hot gases either directly with water, or indirectly with steam and/or water to cool the gases and to generate steam and/or heat the quenching steam, passing the quenched gases and steam over a shift catalyst to convert CO and H 2 O to CO 2  and H 2  and removing H 2 O and CO 2  by adsorption. The hydrocarbon may be cracked with steam over a catalyst or incompletely combusted with an O 2 -containing gas, and is suitably natural gas. The quenching step desirably produces sufficient steam to provide all the requirements for completion of the shift reaction, and cools the gases to 400-1000‹ F. The shift catalyst may be one containing iron oxide, alumina, or a mixture of Zn and Cu oxides. After the shift reaction and prior to adsorption the gases may be cooled to 100‹ F. to remove some water. The adsorbent may be a molecular sieve zeolite. The adsorption may be carried out at atmospheric pressure and the adsorbent regenerated under vacuum: this may be accomplished using two towers of adsorbent, one adsorbing while the other is being regenerated. By reacting the hydrocarbon with an oxygen and nitrogen-containing gas in suitable proportions, the process may be used to provide an atmosphere consisting essentially of H 2  and N 2  in a predetermined ratio e.g. ¢-18% H 2  having a dew point lower than -50‹ F. The invention also comprises an apparatus which includes means for treating the hydrocarbon, means for quenching the resulting gases, a reactor containing a shift catalyst and means for adsorbing the CO 2  and H 2 O from the product gases.
Patent GB-1433653-A (GB)
Title: Distyryl-benzo-bisoxazoles and their use as optical brighteners
IPC: C08L23/00
Filed: 1974-10-01
Abstract: 1433653 Distyryl-benzobisoxazoles BAYER AG 1 Oct 1974 [2 Oct 1973] 42499/74 Heading C2C Novel distyryl-benzobisoxazoles having the formula wherein R 1  and R 2  are hydrogen, halogen, nitrile alkyl, alkoxy, cycloalkoxy, aryl, aralkyl, carboxyl or carboxylic ester groups, are prepared by either (a) reacting a diaminoresorcinol of the formula with a cinnamic acid of the formula or an acid halide derivative thereof wherein R 1 <SP>1</SP> and R 2 <SP>1</SP> are hydrogen, halogen, nitrile, alkyl, alkoxy, cycloalkyl, aralkyl or aryl, and thereafter one or more nitrile groups are optionally converted to carboxy or carboxylic acid ester groups, or (b) reacting a benzaldehyde derivative of the formula with 2,6-dimethyl benzo-bis-oxazole of the formula at an elevated temperature in an inert medium, optionally in the presence of an acid catalyst, and with removal of the resulting water of reaction, and thereafter one or more nitrile groups are optionally converted to carboxyl or carboxylic ester groups. The novel compounds may be used as optical brightening agents for polymers.
Patent GB-426194-A (GB)
Abstract: 426,194. Sparking- plugs. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 16, 1935, No. 1450. Convention date, Jan. 16, 1934. [Class 7 (iv)] The end of the cable e is attached to the central electrode c within a recess in the outer end of the insulator; a sheet-metal sleeve f extends over the insulator being clamped at one end by the gland nut g and at the other rolled into a groove in the bush h. A cap-nut k clamps a rubber packing ring n within the bush h and also secures the metallic covering p of the cable between metal sleeves o. An air-space may be left between the sleeve f and the insulator. A tube of quartz, glass or the like may surround the end of the cable e.
Patent GB-1405204-A (GB)
Title: Ignition timing control system
IPC: F02P5/155
Filed: 1973-09-11
Abstract: 1405204 Ignition systems; timing ignition HITACHI Ltd 11 Sept 1973 [13 Sept 1972] 42720/73 Heading F1B The invention relates to an internal combustion engine having two sparking plugs in each combustion chamber. The timing of the spark of a first sparking plug is controlled by the operation of a contact breaker 12 and the timing of the spark of a second sparking plug is controlled by a signal generated by the contact breaker and a second signal determined by the power output of the engine and this produces a spark delayed in relation to the first spark. The time interval between the two sparks may be determined by the pulse width of an output pulse derived from a one-shot multi-vibrator 30. The signal determined by the power output of the engine may be controlled by the degree of opening of a throttle valve 6 of the engine. As particularly described there are two one-shot multi-vibrators 30, 31 and the engine throttle valve is coupled to a variable resistor 46 associated with the multi-vibrator 30.
Patent GB-1165946-A (GB)
Title: Gas Chromatography
IPC: B01J20/281
Filed: 1967-09-20
Abstract: 1,165,946. Chromatography. CORNING GLASS WORKS. 20 Sept., 1967 [26 Oct., 1966], No. 42809/67. Headings BIL and B1X. Chromatography columns, especially for gas chromatography, comprise as support material particles of a glass composed only of silica. Preferably the particles are substantially spherical and have a size of 20-150 mesh (U.S. Standard sieve), individual particles in any column not varying from each other by more than 20 mesh. Such support material is stated not to exhibit peak tailing.
Patent GB-1363745-A (GB)
Title: Apparatus for analysing an electrocardiogram
IPC: A61B5/364
Filed: 1971-09-17
Abstract: 1363745 Electro-medical apparatus SIEMENS AG 17 Sept 1971 [19 Sept 1970 (2)] 43573/71 Heading GIN The subject matter of this Specification is substantially the same as in Specification 1363744, the claims, however, relating to the means for indicating ventricular extrasystoles.
Patent GB-1031318-A (GB)
Title: Improvements relating to cranes
IPC: B66C23/36
Filed: 1964-10-26
Abstract: 1,031,318. Jib cranes. T. S. DECUIR. Oct. 26, 1964 [Feb. 12, 1964], No. 43580/64. Heading B8B. In a mobile crane comprising a mast 13 and a jib both pivotally mounted on a cab 11 for angular movement in a vertical plane by topping lifts 18, 33 respectively, as described in Specification 1,018,695, the jib is provided with a pivotal joint 60 which may be coupled to the upper end of the mast, thereby allowing the upper portion of the jib to be pivoted relatively to and independently of the lower portion, Fig. 3 (not shown). The upper end of the mast is provided with a gantry arrangement 34, 80, 77 in which the undersides of the outer ends of arms 77 are provided with notches adapted to engage the ends of the pivot pin 63 of the jib joint 60. When the jib is not engaged by the gantry arrangement, the upper and lower portions are locked in alignment at the joint 60, Fig. 5 (not shown). The lower pulley block of the topping lift 18 is supported on collapsible gantry arms and a mast stop is provided as described in Specification 1,018,695. A counterbalance weight 86 may be suspended from the top of the mast by a cable 87. The jib may be pivoted to the lower end of the mast.