baber/WOPTO huggingface dataset:
Patent GB-1418917-A (GB)
Title: Light measurement apparatus and method
IPC: G01J1/44
Filed: 1972-11-29
Abstract: 1418917 Light measurement ASAHI KOGAKU KOGYO K K 29 Nov 1972 [1 Dec 1971] 55173/72 Heading G1A [Also in Division G2]  The intensity of light which contains an alternating component, e.g. due to fluorescent lamp illumination, is detected photo-electrically and measured by combining the alternating component in one signal linearly in opposition with the alternating component of another signal so as to provide a substantially steady signal. The apparatus may be part of a S.L.R. camera, so as to operate after the shutter button has been pressed but before the shutter opens. Two detectors are located between the pentaprism and the eye-piece lens. These may be selenium cells, solar cells or photo diodes, and are coupled, in one arrangement, Fig.2a (not shown) to a differential amplifer, one via a filter circuit which  isolates the A.C. component. Another arrangement, Fig.3a (not shown) has two detectors, one of which feeds a phase inverter and the resultant signals are summed. Alternatively, one detector may be used, two outputs therefrom being connected to remove the A.C. component.
Patent GB-1419282-A (GB)
Title: Installation for polishing workpieces
IPC: B24B19/26
Filed: 1973-11-28
Abstract: 1419282 Polishing REGIE NATIONALE DES USINES RENAULT 28 Nov 1973 [28 Nov 1972] 55257/73 Heading B3D An installation for polishing workpieees 5, 5a, Fig. 1, such as bumpers for automotive vehicles, comprises workpiece support members 4, 4a connected to a linear drive element 1 and arranged at specific intervals along the element, means for driving the drive element in step-bystep manner to bring the support members to face stationary polishing stations 9, 9a, and means for pivoting each of the support members about an axis a-a, which is perpendicular to the direction of advance of the drive element and intersects the longitudinal axis of the drive element. The drive element consists of an endless chain 1 mounted on sprockets 2, 2a one of which is driven. Devices 8 are mounted at spaced intervals along the chain, and each device mounts a pair of support members 4, 4a for the workpiece 5, 5a which have a longitudinal portion 6 and transverse end portions 7, 7a and may be loaded and unloaded at a station 11. A plurality of polishing stations 9, 9a having polishing heads 10, 10a are provided adjacent the path of the support members which are advanced step by step to positions adjacent the stations, the members then being rotated so that all part of the workpieces are presented to the polishing heads. In an embodiment in which the supports are moved to stations having a single polishing head fixed in position, the workpieces 5, 5a, Figs. 3 and 4, are mounted on elements 4.2 on a table 4.1 having diametrically opposed trunnions 13, 14. Trunnion 13 engages an elongate opening 15 in an intermediate plate 16, and trunnion 14 passes freely through an elongate opening in plate 16 and into an ellipsoidal groove 18 in a lower table 19 freely rotatable on a shaft 19 and driven by drive means (not shown). One shaft is secured to plate 16 and has a gear 20 which is rotated when a gear 22 driven by a motor 24 is raised to engage gear 20 at a polishing station. The table 19 is driven in the reverse sense to shaft 21 so that as the intermediate plate 16 rotates 45 degrees, the table 19 changes 90 degrees thereto and the workpieces are moved radially inwardly and outwardly during rotation of the support members so as to engage the fixed polishing head. In another embodiment, the workpieces 5, 5a, Fig. 5, are mounted on the elements 4.2 which are fixed to table 4.1 mounted directly on the shaft (21, Fig. 4) and the polishing heads 10, 10a are movable to accommodate the configuration of the workpieces.
Patent GB-1430856-A (GB)
Title: Reproduction apparatus for copying documents
IPC: G03B27/00
Filed: 1973-12-04
Abstract: 1430856 Feeding sheets XEROX CORP 4 Dec 1973 [5 Dec 1972] 56229/73 Heading B8R Documents are fed from a pile 155, Fig. 3, by a friction separator roller 160 and forwarded by rollers 168, 169 past guides 170 and then by a belt of a transport 171 on to a platen 14, Fig. 3 and 6, at the exposure station of an electrostatographic copying-apparatus. The transport 171 is pivoted on a shaft 202 so as to be manually raisable, together with a cover 227, from the platen to allow removal of a document from the platen, or manual placing of a document on the platen when the automatic feeding means is not to be used. Operation of the copier and of the feeder is prevented when the transport is raised, by means of a signal from a switch 240. The transport is locked in operative position by a latch 231 releasable by a push-button 234, but prevented from being released by a solenoid 239 energized when the copier is in use.
Patent GB-1214654-A (GB)
Title: A process for electrolytic deposition of manganese dioxide
IPC: C25B1/21
Filed: 1967-12-11
Abstract: 1,214,654. Dry cell depolarizers. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 11 Dec., 1967 [21 Dec., 1966; 10 Feb., 1967; 20 March, 1967; 14 July, 1967], No. 56241/67. Heading H1B. [Also in Division C7] In a dry cell, manganese dioxide is used as a depolarizer, the MnO 2  having been produced by electrolyzing an aqueous solution of manganese chloride acidified with hydrochloric acid using a corrosion-resistant anode for the electrolysis (see Division C7). A dry cell having MnO 2  produced in this way yields a higher initial voltage and has a higher capacity than one having conventionally produced MnO 2 . The cathode mixture of the dry cell may comprise manganese dioxide, graphite, acetylene black, ammonium chloride, zinc chloride and water. Details of cell performance are given.
Patent GB-1376618-A (GB)
Title: Control system for hydraulically operated vehicle brakes
IPC: B60T8/1764
Filed: 1971-12-07
Abstract: 1376618 Anti-skid systems TELDIX GmbH 7 Dec 1971 [7 Dec 1970] 56888/71 Heading F2F A brake control system comprises an electrical pulse generator on a braked wheel producing pulses at intervals inversely proportional to the rotational speed, a reference pulse generator providing reference pulses at intervals which are inversely proportional to a reference speed the intervals being longer than those of the wheel pulses in the absence of wheel slip, and a logic circuit in which both pulse series are digitally evaluated such that a pressure drop in the braked wheel braking circuit is initiated when two reference pulses occur in sequence without an intermediate wheel pulse, and that the pressure is allowed to increase when two wheel pulses occur in sequence without an intermediate reference pulse. Basically, outputs from the generators lead to a bi-stable trigger circuit store 6, the wheel generator output being connected to the resetting input thereof, and the reference generator output to the setting input thereof; outputs of the store 6 pass through a pulse delay member 12 to an AND gate 11 for comparison with an output from the reference generator and through a pulse extending timing member 13 to an AND gate 7 for comparison with the wheel signal. The output from the AND gate 11 passes to a setting input of a store 14 similar to store 6, and the output of the AND gate 7 passes to the resetting input thereof to produce the brake pressure decrease and increase signals from the pulse intervals, the signals passing through an amplifier 15 to a magnetic valve 16. Fig. 4 shows the braked wheel (which is non-steered), the reference pulses being obtained from generators 28, 29 of steered wheels 24, 25, having their own anti-skid control circuits. Separate comparison circuits are provided for different signals due to the two steered wheels 24, 25, and from the use of the OR gates 38, 39, the faster of these wheels provides the comparison which produces the brake pressure signals. Furthermore, a second non-steered wheel may be so controlled, Fig. 5 (not shown), additional circuits for producing an additional pressure drop signal being incorporated these circuits producing a brake release signal for the steered wheels 24, 25 in the situation wherein the steered wheel(s) lock(s) slowly not producing a required deceleration signal at the reference generator for the or each steered wheel. These circuits comprise OR gates, an AND gate, and pulse extending timing members.
Patent GB-1361757-A (GB)
Title: Smokers accessory
IPC: B60N3/12
Filed: 1972-12-29
Abstract: 1361757 Smokers' accessories D W HODGSON 29 Dec 1972 [9 Dec 1972] 56917/72 Heading A2M A receptacle for attachment, e.g. by a suction cup, to a surface inside a vehicle, comprises a block provided with two sets of holes suitably sized to loosely hold individual cigarettes and matches as shown. An outwardly sloping part at the base of the block is grooved to retain a strip of match striking material.
Patent GB-1116920-A (GB)
Title: A method of producing tetrafluoromethane
Inventor: MASSONNE JOACHIM
IPC: C07C17/10
Filed: 1966-12-20
Abstract: Tetrafluoromethane is produced by reacting trifluoromethane with an excess of up to 10% of elementary fluorine above the stoichiometric quantity in a reaction zone which is previously heated to 200 to 600 DEG  C.  The reaction product may be cooled to remove hydrogen fluoride by condensation, passed through a bed of an alkalimetal chloride and finally washed with an alkalimetal hydroxide to remove chlorine and any remaining hydrogen fluoride.
Patent GB-1328125-A (GB)
Title: Aluminium-zinc alloy
IPC: C22C21/10
Filed: 1970-12-01
Abstract: 1328125 Aluminium alloy VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A G 1 Dec 1970 [3 Dec 1969] 57102/70 Heading C7A An aluminium alloy for bearings comprises the balance, apart from impurities being Zn. A process for producing worked bodies of the alloy comprises hot working between 275-450C (pref. 330-350C)or the cast alloy may be annealed at 290-380C.
Patent GB-1398697-A (GB)
Title: Wheel fixing device for a vehicle
IPC: B60B3/14
Filed: 1973-12-12
Abstract: 1398697 Attaching vehicle wheels to hubs AMIL SA 12 Dec 1973 [20 Dec 1972] 57618/73 Heading B7C [Also in Division F2] A light alloy or synthetic resin vehicle wheel 9 (Fig. 1) or 26 (Fig. 2) is secured to a supporting disc 10, 25 by fixing devices 1, 17 each comprising a head 2, 18 connected by a frusto-conical portion 3, 19 to a cylindrical portion 4, 20, and either a screw thread 7 formed on a shank extension of the portion 4 (Fig. 1) or an internal screw thread 23 (Fig. 2), and a captive washer 11, 30 of harder material than the wheel 9, 26, freely rotatable on the cylindrical portion 4, 20 and having an internal frusto-conical bearing surface 13, 31 co-operating with the portion 3, 19 and an external frusto-conical bearing surface 14, 29 seating in a frusto-conical bearing surface 15, 28 of the wheel disc 9, 26. The washer is retained on the bolt 1 or nut 17 by a circlip 12, 32 bearing on a shoulder or in a peripheral groove round the cylindrical portion 4, 20. The nut 17 may have a through bore or, as shown, be closed at the head end. The bearing surface 14, 29 may have protuberances to increase friction with the seating 15, 28.
Patent GB-1355175-A (GB)
Title: Meat tenderization method
IPC: A23L13/70
Filed: 1972-12-14
Abstract: 1355175 Meat tenderising BAXTER LABORATORIES Inc 14 Dec 1972 [21 Dec 1971] 57872/72 Headings A2B and A2E A method of tenderising meat by enzyme comprises injecting the meat to a level of 1-8% of the dressed weight of the meat with an aqueous solution containing 0.1-0.4% by weight of tragacanth and having a proteolytic enzyme activity of 0.01-0.05 milk clotting units per gram of solution. The enzyme may be a plant enzyme e.g. popain, bromelain, ficin, an animal enzyme e.g. pepsin, trypsin, chymotrypsin, a fungal enzyme from e.g. Aspergillus niger, aspergillus orzae, or a bacterial protease from e.g. Bacillus subticlis, Bacillus mezentericus. The enzyme may be injected into the meat by conventional procedure before or after rigor merits, in the former case 1-4% by wt. of the meat of enzyme solution being added. The meat may be lamb, pork, veal or beef. The tragacanth is sterilised before use.
Patent GB-1373086-A (GB)
Title: Apparatus for controlling the fuel supply to an internal combustion engine
IPC: B60R25/00
Filed: 1970-12-05
Abstract: 1373086 Controlling the fuel supply of an internal combustion engine; preventing unauthorised use SIMMS MOTOR UNITS Ltd 25 Nov 1971 [5 Dec 1970] 57876/70 Headings F1B and F1K Apparatus for controlling the fuel supply to an internal-combustion engine comprises a first pivotal lever 15 for connection to a stop lever 15a, resilient means 17 loading the first lever in a direction so that the stop lever will be urged to a stop position in which it prevents delivery of fuel to the engine, catch means 18 operable to retain the first lever against the action of resilient means, means 22 for releasing the first lever to permit the resilient means to move the stop lever to the stop position, a second pivotal lever 16 for connection to a quantity control lever 16a and cooperable means on the first and second levers arranged so that when the first lever is in the position in which the stop lever is in the stop position, movement of the second lever will effect movement of the first lever to a position to be retainable by the catch means. As shown the catch 18 is loaded out of engagement with the lever 15 by means of a spring 21 and is movable against the action of the spring by means of an electromagnetic device 22. The device 22 is supplied with electric current when it is desired to start the engine and also during normal running of the engine. When a steering column lock is locked the device 22 is de-energized and the catch 18 is moved by the spring 21 to release the first lever 15 thus stopping the supply of fuel. The device 22 may be a mechanical device coupled to the steering column lock.
Patent GB-1222166-A (GB)
Title: A rolling mill drive
IPC: B21B35/14
Filed: 1968-12-06
Abstract: 1,222,166. Rolling mill drive. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 6 Dec., 1968 [8 Dec., 1967], No. 58166/68. Heading B3M. A rolling mill drive comprises two shafts 6, 7 each shaft consisting of a spindle 14 having a flat driver pivot 13 at one end connected by a universal joint 10 to a drive shaft 8 or 9 from a pinion stand 3, a flat driver pivot at its other end comprising at least two stepped portions 17, 16 of different thicknesses and a universal joint 19 replaceable with each roll 4 or 5 associated with a step of the flat driver pivot. With large diameter rolls the universal joint 19 engages step 16 but when small diameter rolls are used a smaller universal joint (19a), Fig. 2 (not shown), is used in conjunction with step 17. The universal joints 19 are of elliptical cross-section, Fig. 4 (not shown), to compensate for the weakening due to the recess 22 required for step 17. The two shafts 6, 7 are mounted with their stepped portions perpendicular to each other to enable the separation of their axes of rotation (C), Fig. 3 (not shown), to be less than the width (D) of steps 16.
Patent GB-1413833-A (GB)
Title: Dynamoelectric machine
IPC: H02H7/06
Filed: 1972-12-18
Abstract: 1413833 Protective arrangements WESTINGHOUSE ELECTRIC CORP 18 Dec 1972 [17 Jan 1972] 58329/72 Heading H2K A dynamoelectric machine, e.g. a large generator, having for each phase a plurality of parallel winding portions 31A ... 40A connected to a common lead 21, is provided with a protective arrangement which includes a first current transformer 31X ... 40X for each winding portion and a second current transformer 51 for the common lead 21, current unbalance responsive means 61 ... 70 connected between current transformers on alternate portions for response to unbalanced current between individual winding portions, and additional unbalance responsive means 74 connected between the plurality of first current transformers 31X ... 40X and the second current transformer 51 on the common lead to provide differential protection for the whole phase winding. As shown the winding portions may be divided into two groups with a third current unbalance responsive means 72 connected between the two groups. The means 61 ... 70 would indicate air gap variations.
Patent GB-1405328-A (GB)
Title: Process for the preparation of petroleum resins
IPC: C08F240/00
Filed: 1973-12-17
Abstract: 1405328 Petroleum resins SOC ITALIANA RESINE SIR SpA 17 Dec 1973 [22 Dec 1972] 58402/73 Heading C3P Petroleum resins are prepared from hydrocarbon fractions boiling in the range 30 to 300 C. and containing olefins and diolefins, by a process which comprises (a) subjecting the hydrocarbon fraction to prepolymerization in the presence of 2 to 10 parts of activated clays per 100 parts by weight of the hydrocarbon fraction at 10 to 60 C. for 1 to 60 minutes, with transformation into prepolymers of boiling point above 230 C. in quantities not exceeding 20% by weight of the fraction, (b) subjecting a distillate hydrocarbon fraction having a maximum boiling point of 210 to 230 C. obtained from the prepolymer solution after separation of the activated clays, to polymerization in the presence of a Friedel-Crafts catalyst with conversion into polymer of a quantity not exceeding 40% by weight of the hydrocarbon fraction fed to the prepolymerization, and (c) recovering petroleum resin from the polymerization products. The prepolymerization may be effected in the presence of activated clays, preferably to 1 to 10% conversion, and the high boiling products including resins of melting point 60 to 80 C. are useful in varnishes and adhesives. The polymerization may be effected in the presence of aluminium trichloride, aluminium tribromide or boron trifluoride, and the product treated, after catalyst separation, with activated clay, to give resins of melting point 123 to 130 C. which are useful in varnishes, adhesives, printing inks, bituminous paving compositions and tyremaking mixtures. The resins may be modified by reaction with maleic anhydride or other unsaturated compound in the presence of an organic peroxide. In examples, (1) a steam cracked naphtha boiling in the range 135 to 228 C. is subjected to prepolymerization in the presence of activated clay, the residual fraction to polymerization in the presence of aluminium chloride and the resulting product to treatment with activated clay, and (2) the resin from Example (1) is reacted with maleic anhydride in the presence of cumene hydroperoxide.
Patent GB-1302870-A (GB)
IPC: C08K5/58
Filed: 1969-11-28
Abstract: 1302870 Organotin compounds KYODO CHEMICAL CO Ltd and SUMITOMO BAKELITE CO Ltd 28 Nov 1969 [30 Nov 1968 (3)] 58418/69 Heading C2J [Also in Division C3] Organotin compounds claimed per se have the formula where (a) R is a substituted or unsubstituted C 1 -C 18  alkyl, alkenyl or aralkyl group; (b) SX is a mercaptan residue or-SR<SP>1</SP>COOR<SP>11</SP>where R<SP>1</SP> is a substituted or unsubstituted C 1 -C 8  alkylene, cycloalkylene or alkenylene group and R<SP>11</SP> is H or a substituted or unsubstituted C 1 -C 18  alkyl, cycloalkyl, alkenyl or aralkyl group; (c) SY is SX or or G-(-R<SP>1</SP>OOCR<SP>111</SP>S-)z (where R<SP>1</SP> is as above, R<SP>111</SP> is a substituted or unsubstituted phenylene or C 1 -C 8  alkylene, cycloalkylene or alkenylene group, and G is O, C, CH or S with Z being respectively 2, 4, 3 and 2 or 4) or (where R<SP>1</SP> is as above, E is SX or or r = 0-2, q = 1-3 and q + r = 3); and (d) f = 1-4, t = 1 or 2 and is 2 if SY is monovalent, m and n satisfy valence requirements for tetravalent Sn, p is at least 1 and I is at least 2; the compounds must contain at least one or grouping. These compounds, inter alia, may be prepared by a claimed process for making organotin compounds, wherein either (1) RSn(S)SH or [RSn(S) 1À5 ]l is reacted with [RSn(SX) m (SY) n ] p  or H,SY (s = 1-4) at up to 300 C., or (2) RSn(Hal) 3  is reacted with M s SY or MSR<SP>1</SP>COOM (M is an alkali metal, Hal is halogen) at up to 100 C. and the product RSn(Hal) d (SY) e  (d, e are 1 or 2 and d + e = 3) is reacted with caustic alkali or alkali metal sulphide or hydrosulphide at up to 100 C. The reactant may be obtained by an initial dehydration reaction between a starinoic acid RSn(O)OH and H s SY. In a modification of (1) (not claimed) as described in example, the reactant [RSn(S) 1À5 ]l is replaced by [RSn(S)] 2 O. The examples describe the preparation of specific compounds as defined above and (example) a polythiostannoic acid of indefinite formula wherein-S- links have been replaced by -SCH 2 COO links. Reference has been directed by the Comptroller to Specification 1,194,223.
Patent GB-1243110-A (GB)
Title: Servo limiter
IPC: G05D3/14
Filed: 1969-12-02
Abstract: 1, 243, 110. Correspondence control systems. UNITED AIRCRAFT CORP. Dec. 2, 1969 [Jan. 28, 1969], No. 58788/69. Heading G1N. A servosystem is provided with an arrangement for introducing a large negative feedback to the input of amplifier 16 to reduce the input to servomotor 12 when it approaches a limit stop. As shown potentiometer 30 is driven in accordance with the position of the servoed device 10; when it nears its upper or lower end, transistor 42 or 54 respectively becomes conductive to connect the output of amplifier 16 to the summing point 24 when the polarity of the output is such as to drive the motor 12 towards the limit stop. The effective gain of the amplifier is not reduced for signals tending to drive the servomotor away from the limit stop.
Patent GB-1361439-A (GB)
Title: Solvent dyeing process
IPC: D06P1/92
Filed: 1971-12-21
Abstract: 1361439 Dyeing acrylic fibres GAF CORP 21 Dec 1971 [21 Dec 1970] 59209/71 Heading D1B Acrylic or mixed acrylic fibres or fabric are dyed by contacting the fibre or fabric with a dye-solvent system comprising (1) a lower (C 1-6 ) alkyl water-insoluble chlorinated solvent and (2) a solution of a complex dye, 0.1 to 20 parts by weight of solution (2) for 100 parts by weight of the solvent (1) being present, the solution (2) comprising (a) a complex of a cationic dye with a linear alkyl-arylsulphonic acid surface active agent dissolved in (b) a lower alcoholic solvent, (c) an alkalizing agent and (d) water in an amount sufficient to form a clear stable solution of the complex followed by heat curing the thus treated fibre or fabric. The application of the dye-solvent system may be effected at temperatures up to 140F at pH 2 to 7.5, the lower alcoholic solvent being present in an amount of from 5 to 25% by weight based on the total weight of the solution (2). Polyacrylonitrile and polyacrylonitrile-viscose mixed fabrics may be dyed.
Patent GB-1324550-A (GB)
Title: Method and apparatus for work-hardening a welded joint between two conductors of electric cables
IPC: C21D9/50
Filed: 1970-12-14
Abstract: 1324550 Making electric conductors; altering physical properties; upsetting INDUSTRIE PIRELLI SpA 14 Dec 1970 [3 Feb 1970] 59222/70 Headings B3A B3H and B3V [Also in Division H2] An electric conductor which has become annealed at a welded joint is work-hardened by axial compression; it may also be subjected to lateral pressure which may be applied simultaneously. 'The welded joints of copper or alumimium single, stranded and stranded oilfilled cables may be treated in apparatus in which the annealed portion is placed between vices 22, 23. Fig. 8 closed by screws or fluid pressure. A wedge 32, driven by a power hammer 31, applies pressure to the vice 23 for compressing the annealed portion axially. A ridge (18) Fig. 7 (not shown), formed by the compression may be removed by filing, and a steel sleeve 15, Fig. 4, may connect the ends of a PTFE oil tube 16<SP>1</SP>, 16<SP>11</SP>. In another form, Fig. 9, vices 41, 42 are moved to compress the cable 46 by turning nuts 45<SP>1</SP> on bolts 44<SP>1</SP>, 44<SP>11</SP>. Without releasing the axial force the cable may then be compressed laterally between dies 43, 43<SP>11</SP> operated by a hammer 47. Axial and transverse loading may be repeated as necessary.