baber/WOPTO huggingface dataset:
Patent GB-1448199-A (GB)
Title: Mobile bridges
IPC: E01D15/127
Filed: 1972-11-28
Abstract: 1448199 Portable bridges B WRIGHT 4 Dec 1973 [28 Nov 1972] 54899/72 Heading E1G [Also in Division B8] A portable bridge or ramp (Fig. 4) comprises a chassis or hull having parallel box section members which contain telescopically extensible members, all the members having adjacent upper surfaces for defining a roadway, and elevating means at at least one end for controlling the angle of the extended members. The end members have inclined portions which allow vehicles to drive onto the bridge or ramp. A second set of telescopic members 1 may be pivotally connectible to the first by lugs 2 and are manouvered by a crane 5 having an adjustable boom 7 and a telescopic mast 6. Slats for forming the bridge deck may be stored between the box section members and raised by hydraulic rams and moved into position by a winch and a cable reeved to the box sections. Members may extend telescopically from both ends of the box section members.
Patent GB-1247344-A (GB)
Title: Dynamo-electric machines
Inventor: DAVIES EVAN JOHN
IPC: H02K3/04
Filed: 1967-12-05
Abstract: 1,247,344. Dynamo-electric machines. NATIONAL RESEARCH DEVELOPMENT CORP. 4 Dec., 1968 [5 Dec., 1967], No. 55329/67. Heading H2A. A dynamo-electric machine, such as an alternator, has a three-phase concentric winding disposed in the air gap, one of the phase windings being split into two parts each occupying different levels in the end region spaced apart in a radial direction and the remaining phase windings occupying individual levels sandwiched between the levels of said one winding. As shown in Fig. 1, a laminated slotless stator 2 has a winding 3 secured to the inner periphery thereof with the interposition of insulation 4. A thin insulating tube 5 is secured to the inner periphery of the winding and may be extended beyond the winding to form a partition between the stator and rotor. Fig. 5c shows a complete winding in which the winding of phase A forms the two level windings over the central region in addition to the end regions. The said phase winding comprises parts A1, A2 at an inner level and parts A3, A4 at an outer level, the parts being staggered as shown. The windings of phases B and C are split radially into parts B1, B2 and C1, C2, each pair of parts being T- shaped so as to interfit with each other and the parts of phase A over the central region. Cooling tubes may be incorporated in the winding.
Patent GB-1059255-A (GB)
Title: Process for the addition of maleic anhydride to polyalkylvinyl ethers
IPC: C08F261/06
Filed: 1965-12-31
Abstract: Maleic anhydride-polyvinylalkyl ether adducts are obtained by reacting, at elevated temperatures, in the presence of radical initiators, maleic anhydride with a polyvinylalkyl ether.  The reaction may take place in the presence or absence of inert solvents. The radical initiators used are conventional organic peroxides.
Patent GB-1160087-A (GB)
Title: Derivatives of 1,2,5-Thiadiazole
IPC: C07D285/10
Filed: 1966-12-13
Abstract: 1,160,087. Derivatives of 1,2,5-thiadiazole. MERCK & CO. Inc. 13 Dec., 1966 [17 Dec., 19651, No. 55832/66. Heading C2C. The invention comprises compounds of formula in which each of R* and R<SP>11</SP> is a C 1-6  alkyl or a phenyl radical. These and other compounds of the general formula in which each of R and R<SP>1</SP> is hydrogen, C 1-6  alkyl, aryl, or R and R 1  together represent a trimethylene or tetramethylene radical, may be obtained by reacting sulphur monochloride, sulphur dichloride, sulphur monobromide or sulphur dibromide in an inert solvent with a diamine of formula Alternatively, compounds of formula in which each of R<SP>0</SP> and R<SP>1</SP> represents hydrogen, C 1-6  alkyl or phenyl may be obtained by reacting the sulphur halides referred to above with a dioxine of formula in an inert solvent. The products in which at least one of R and R 1  is a C 1-6  alkyl radical may be further oxidized in the presence of ammonia and over an ammoxidation catalyst to convert the alkyl radical(s) to cyano and the cyano group(s) may be converted to amide group(s) by treating the cyanides with dilute aqueous sodium hydroxide. More vigorous hydrolysis leads to the formation of the corresponding 1,2,5-thiadiazole carboxylic acids.
Patent GB-1279549-A (GB)
Title: A self-excited inverter
IPC: H02M3/338
Filed: 1970-11-26
Abstract: 1279549 D.C.-D.C. converting INTERNATIONAL STANDARD ELECTRIC CORP 26 Nov 1970 [28 Nov 1969] 56197/70 Heading H2F [Also in Division H3] The bases of two grounded-emitter alternately conducting oscillator transistors T1, T2 are connected to one another through a winding III of an output transformer and a series resonant circuit L1, C1; and delay means such as T3, T4 prevents one transistor of T1, T2 conducting until the other is fully off. Upon initial switch-on, a resistor R1 makes point a more positive than point b, and current flows in T1 to start the oscillation. Winding III and series resonant circuit L1, C1 now tend to make b more positive to turn T2 on as T1 goes off; however, T1 turn-on is delayed by temporary conduction of T4 due to current flow from b through R5, C3, T4 e-b, D1 and R2 to a. This delay is arranged to be long enough for charge carriers in T1 base to be discharged fully. To compensate for a possible gap occurring after T1 has finally turned off and before T2 turns on, due to load L variations, the delay is effectively modified by C5, R7 connected to T2 collector. The cycle repeats in similar fashion but with the other half of the circuit conducting. The output of transformer U is rectified and smoothed to drive load L.
Patent GB-1378393-A (GB)
Title: Diagnostic device for obtaining cytologic samples
IPC: A61B10/02
Filed: 1971-12-03
Abstract: 1378393 Swabs ARMOUR PHARMACEUTICAL CO 3 Dec 1971 56311/71 Heading A5R [Also in Division G1] A diagnostic device for obtaining cytologic specimens from a body orifice of a patient comprises an elongated handle 11, a support 12 at one end and a pledget 23 disposed upon the support with an extending nose portion 25. The pledget is impregnated with a specified amount of proteolytic enzyme which acts upon mucus formed at the sites of cellular sampling which mucus would otherwise reduce the clarity of the cellular sample. A connecting sleeve which engages abutments 16 and 20 on the support and handle respectively is made of a flexible resilient material such as polyethylene to give the device flexibility. The support and handle are plastics mouldings. The pledget is formed of a porous foamed material such as silicone rubber, polyurethanes, polyether urethanes, or preferably of a mixture of polysiloxane fluid polymers and inert diatomaceous earth fillers and is secured to the support, which is foraminous by inserting the support into a mould whilst the foam is generated so that beads of foam pass through the foraminae, and on hardening secure the pledget to the support. The pledget is impregnated by submergence in an aqueous solution of the enzyme in a steel vessel, providing a vacuum in the vessel to drive out any air entrapped within the pledget foam and causing the foam to be impregnated with the enzyme solution, and then freezing and vacuum drying to leave the enzyme solute as a residue. The enzyme may be trypsin, chymo trypsin or preferably a mixture of the two and the amount of enzyme is determined by a fibrin plate assay involving the procedure of placing a filter paper impregnated with the enzyme onto a fibrimogen/thrombin solution in a Petri dish.
Patent GB-1378892-A (GB)
Title: Steering devices for automobile vehicles
IPC: B62D3/12
Filed: 1971-12-07
Abstract: 1378892 Toothed gearing GEMMER FRANCE 7 Dec 1971 [11 Dec 1970] 56838/71 Heading F2Q In a rack and pinion steering gear, the pinion shaft has a cylindrical extension 7 to which a part-spherical member 10 of steel is secured, and a member 11 of synthetic resin material surrounds the member 10 and is clamped within a housing extension 2 by a screw member 12. The pinion shaft is also supported by a cylindrical sleeve 9 of synthetic resin material. In a modification, shown in Fig. 2, a cylindrical sleeve 13 of synthetic resin material supports the shaft extension 7. In a further modification, a washer 15, Fig. 3, is secured to a shaft extension 7 and is gripped between sleeves 16a, 16b of synthetic resin material. In all the embodiments, a thin film of lubricant separates synthetic resin and metal surfaces. The synthetic resin material may be a polyethylene or an acetal resin.
Patent GB-1301919-A (GB)
IPC: G09B23/28
Filed: 1970-12-01
Abstract: 1301919 Apparatus for practising resuscitation A S LAERDAL 1 Dec 1970 [11 Dec 1969] 57052/70 Heading A5T An apparatus for practising resuscitation by insufflation and heart massage comprises a dummy provided with imitation respiratory organs 20 and an imitation thorax, such as a steel band 1, a recording device having an advancing record sheet 12 and writing means 3 adapted to write on the record sheet in response to movement of the respiratory organs and thorax, a rod 23 being connected to the upper surface of the respiratory organs and coupled via a slotted member 29 and rod 28 to one writing instrument, and the steel band 1 being similarly connected by member 15 to another writing instrument. The apparatus may be provided with means for indicating that the person practising resuscitation has performed tasks such as feeling a pulse and examining an eye during the course of practising.
Patent GB-1212117-A (GB)
Title: A device for sharpening a writing element
IPC: B43L23/08
Filed: 1968-12-03
Abstract: 1,212,117. Pencil sharpeners. J. S. STAEDTLER. 3 Dec., 1968 [7 Dec., 1967], No. 57441/68. Heading B6P. A circular container 1 with a cover 2 rotatable about a pin 6 has a sharpener carried by a ball-like member 11 mounted in a socket 7 in the cover 2. In operation, the pencil inserted in the sharpener is used as a crank to rotate the cover 2. In so doing, with the ball-like member prevented from rotating in the socket 7, the sharpener rotates relative to the pencil. The ball-like member is held in the socket 7 by a cage member 9, Fig. 2 and (Fig. 3). A spring 13 engaging a boss 12 on the ball-like member 11 allows a certain amount of universal motion but prevents complete rotation. In (Fig. 4) opposed transverse springs prevent rotation of the ball-like member. Sharpening is by means of a blade 16, several blades or a milling or abrading tool.
Patent GB-1166470-A (GB)
Title: Improvements in Record Players
Inventor: LANE NORMAN
IPC: G11B33/02
Filed: 1966-12-23
Abstract: 1,166,470. Disc record players. BRS Ltd. 17 Jan., 1968, No. 57625/66. Heading G5R. In a record player the means resiliently mounting the deck plate carrying mechanical components, in the cabinet, includes a mounting device comprising a screw or the like adapted to engage rigidly with a support base in the cabinet, an upper abutment member engaged under the head of the screw, a lower abutment member adapted to engage the support base, a distance piece located between the upper and lower abutment members serving to maintain them a fixed distance apart, and a sleeve of rubber or like resilient material surrounding the screw or the like and having its upper and lower ends engaging, respectively, the underside of the upper abutment member and the upper side of the lower abutment member, the deck plate of the record player being engaged with, and supported by, the sleeve. As described, the deck plate may be of steel or a plastics material, and the cabinet may be of a plastics material or wood. As shown in Fig. 3, the cabinet 10 is of wood, having, as support base, a " motor board" 16 into which a screw 17 is threaded. The lower abutment member and distance piece are made in one piece, and are constituted by a flange 23 and a sleeve 22, respectively. The upper abutment member is in the form of a washer 20 under the frusto-conical underside 19 of the screw-head 18. The rubber sleeve 24 surrounds the distance sleeve 22 and has a circumferential groove 26 in its exterior in which engages the peripheral edge of a circular hole 27 in a steel deck plate 11. Preferably the rubber sleeve 24 has a lower portion 25 which engages the sleeve 22. Where the cabinet is of a plastics material, and the deck plate is again of steel, the parts 11 and 17 to 26 are exactly as shown in Fig. 3. The threaded shank 21 of the screw 17, however, engages in a hole 15 in an upstanding boss 14 moulded integrally with the plastics cabinet, these parts being shown in Fig. 4. Where both the cabinet and the deck plate are of plastics material, as shown in Fig. 4, the deck plate preferably has a shallow depression 28 in which the hole 27 is formed, and the flange 23 is of reduced thickness as compared with Fig. 3. Where the cabinet is of wood and the deck plate is again of plastics material, the parts 11 and 17 to 28 are exactly as shown in Fig. 4. However, a spacing washer is interposed between the flange 23 and the motor board.
Patent GB-1255090-A (GB)
Title: Apparatus for electrostatically coating powders on a workpiece
IPC: B05B7/14
Filed: 1969-11-27
Abstract: 1,255,090. Electrostatic spraying. NIPPON KOGEI KOGYO CO. Ltd. 27 Nov., 1969 [26 March, 1969; 11 June, 1969 (2)], No. 58101/69. Heading B2F. Apparatus for electrostatically coating powders on a workpiece comprises a rotary projection head 5 provided with angled nozzle pipes 3 which can be adjusted as shown in Fig. 2 to increase or decrease the spread of the projected powder. The head 5 is mounted on a tube 6 of insulating material supported in bearings 9a, 9b within an insulating sleeve 11, the tube 6 being driven by an electric motor 8 through a belt 8b. A high voltage supply 12 is connected through the bearing 9a to the head 5, so that, in operation, a field is produced between the head and the article 14 to be coated. Coating powder, e.g. polyethylene powder, is entrained in compressed air and supplied to the head through the tube 6. The powder projecting apparatus is associated with a powder supplying device comprising a hopper 30 beneath which is a trough 31 mounted on a vibrator 33. A control device 32 is adjustable to vary the amplitude of vibrations of the trough and hence meter the amount of powder delivered to a powderair mixer B. The mixer, Fig. 8, has a powder inlet 38, a compressed air inlet 39 and a powder-air mixture outlet 40 which is connected by a flexible line 2 and the tube 6 to the rotary projection head 5. A pair of mixers may be supplied by the vibrating trough, the powder being distributed between them by a controlling member 34. The electric drive motor 8 may be replaced by an air motor reducing the weight of the projector so that it may be hand-held as a gun.
Patent GB-1319280-A (GB)
Title: Process for brazing stainless steel parts to parts of aluminum and or aluminum alloys
IPC: B23K35/28
Filed: 1970-12-07
Abstract: 1319280 Brazing flux solution SOC ANON DES USINES CHAUSSON 7 Dec 1970 [15 Dec 1969] 58114/70 Headings C7E and C7M [Also in Division B3] A brazing flux for use in brazing together stainless steel and aluminium or aluminium alloy parts (see Division B3) comprises in parts by weight per 100 parts of water: zinc chloride 10, lithium chloride 10, sodium chloride 30, potassium chloride 41 and aluminium fluoride 9. The stainless steel is first pickled in a solution containing 0À1 1 HNO 3 , 20 grams NaF and 0À8 1 H 2 O per 1 of solution.
Patent GB-1371230-A (GB)
Title: Float
IPC: A01K93/00
Filed: 1971-12-16
Abstract: 1371230 Fishing float SUPER HOBBY NV 16 Dec 1971 [16 Dec 1970] 58503/71 Heading A1A A float for fishing comprises a tube 1, Fig. 1, which contains a body 6 floatable between stops 7 and 8, and which has holes 5 and 10 to permit water to pass into or out of tube 1. The region below stop 8 may contain lead balls for weighting purposes. A fishing line is passed through holes 9, one of which is not shown, and eye 12 and is attached to a hook and weights. On being submerged in water the hook carries the line downwards whilst the float moves up the line, and the intermediate line is held taut due to friction between the line and the float. When the float reaches the surface of the water body 6 floats and contacts stop 8 because tube 1 rises high in the water when it floats on the surface. The fishing line is gripped between body 6 and stop 8. In order to ensure a firm grip of the line the two abutting surfaces carry magnets, and in Fig. 1 magnet 13 is attached to the lower surface of body 6. The line can be reeled in by pulling on the line so that body 6 is lifted from contact with stop 8. In an embodiment (Fig. 2) a float has a variable volume so that the position of the float relative to the water surface can be varied. A hollow body 24 is open at the upper and lower ends and it is movable on guide rod 20 between stops 23 and 22. Tube 26 is movable through opening 25 so that the volume of air trapped inside of body 24, when it is floating on the surface of the water, can be altered. The upper end 27 of tube 26 rests against stop 22 when the float is submerged, and this ensures that no air leaks from body 24. On reaching the water surface stop 22 is carried upwards from end 27 because stop 23, which carries rod 20, floats near to the surface of the water. The fishing line is trapped between body 24 and stop 23. Magnets 35 and 36 are fitted to ensure a firm grip. The fishing line is kept taut under water by the frictional forces exerted by the sides of groove 30. A means for varying the frictional force between the line and the float consists of a sheave 37 with a bore 39 through which the line passes, and the sheave is rotatable about spindle 38 so as to vary the resistance of the float as it moves along the line.
Patent GB-1369943-A (GB)
Title: Method of forming a carbide layer on an iron or ferrous alloy article
IPC: C23C10/36
Filed: 1972-12-19
Abstract: 1369943 Coating by halide pack diffusion TOYOTA CHUO KENKYUSHO KK 19 Dec 1972 [20 Dec 1971(3)] 58593/72 Heading C7F A substrate of iron or ferrous alloy containing at least 0À02 wt. per cent C is coated with carbide by packing in a powdery treating material containing 0À5 to 80 wt. per cent of an alkali metal or ammonium fluoborate and 20 to 99À5% of a metal powder composed of or containing at least one of Ti, Zr, Hf, V, Nb, Ta, Mo, and W or mixtures thereof and heating to 600 to 1200‹ C. Heating may be for ¢ - 30 hours; the metal may be added as an alloy, e.g. with Fe, Co, Ni, Mn, or Al, and the powder may contain an inert refractory, e.g. Al 2 O 3 , SiO 2 , BN or Cr 2 O 3 .
Patent GB-1336510-A (GB)
Title: Fuel injection pumps for internal combustion engines
IPC: F02M59/34
Filed: 1971-12-17
Abstract: 1336510 Fuel injection pumps ROBERT BOSCH GmbH 17 Dec 1971 [19 Dec 1970] 58609/71 Addition to 1310288 Heading F1A In a fuel injection pump according to the parent Specification 1310288 wherein to extend the injection period at engine idling speed fuel is allowed to spill from the cylinder working chamber 3 through a spill passage 8, 9, 7, 34 containing a variable restrictor 35, the spill passage is closed after the start of the feed stroke of the pump piston 1. Closure of the spill passage is effected by a port displaceable in synchronism with the piston 1 or by an edge 44 of the piston 1 itself. Thus the amount of fuel spilling through the spill passage before it is closed decreases with increasing speed thereby to adjust the commencement of fuel injection.
Patent GB-1445894-A (GB)
Title: Electrolytes for aluminium electrolytic capacitors
IPC: H01G9/022
Filed: 1973-12-19
Abstract: 1445894 Electrolytic capacitor PLESSEY CO Ltd 11 Oct 1974 [19 Dec 1973] 58935/73 Heading H1M In an aluminium electrolytic capacitor, the electrolyte comprises a nitro-substituted benzoic acid, e.g. p-nitrobenzoic acid, a solvent consisting of glycol and dimethylformamide, and diethylamine. Water and/or gelling agent, e.g. silica, may also be included.
Patent GB-1318655-A (GB)
Title: Illuminated display pillar
IPC: G09F13/04
Filed: 1970-12-11
Abstract: 1318655 Illuminated display devices W THOMSEN and W CARSTENS 11 Dec 1970 [2 Jan 1970] 58938/70 Heading G5C An illuminated display pillar has a pair of fixed windows 7, 8 and a pair of retractable windows 17, 18, behind each of which a poster 16 held between two transparent foils 14, 15 is fixed, the illumination effected by a number of tubular lamps 6. The windows 17, 18 each comprise an arcuate pane 19 held by profiled strips 20, 21, behind which the poster assembly 14-16 is held by strips 23, 24. The strip 23 is associated with a T-strip 22 and the upward groove so formed engages with the profiled strip 10 of a ring 12, the window being held in place by a screw 25. The fixed windows 7, 8 are surrounded by top and bottom strips 10 and side strips 11, the outer grooves of the strips 10 engaging with the ring 12 and pedestal portion 1, and the poster assembly is held between two strips 13. To replace the posters, the windows 17, 18 are removed and thus the posters, with the foils, can be slid out of their supports 13, 23, 24. In cross-section the pillar can be polygonal.
Patent GB-1353453-A (GB)
Title: Transmission control arrangements
IPC: F16H63/20
Filed: 1972-12-21
Abstract: 1353453 Change speed gear control GENERAL MOTORS CORP 21 Dec 1972 [28 Jan 1972] 59038/72 Heading F2D A transmission control arrangement for a motor vehicle comprises a fixed upper steering column housing 10, a gearshift bowl assembly 18 rotatably mounted on an inner portion 12 of the housing, a selector lever 39 pivotally mounted at 41 on the bowl assembly for turning the latter to selected ratio positions as determined by a fixed gate plate 45 against which the lever is urged by a spring 44, and a ratio-control cable 48 extending through the column housing and operated by a gear arrangement comprising an arcuate bevel gear 32 on the bowl assembly meshing with a pinion 33 which is integral with a spur pinion 31 meshing with a rack 36 to which the cable is connected at 47. A cover 22 is fixed at 26 to the column housing and carries the gate plate 45 and a turn signal switch 23.
Patent GB-1377180-A (GB)
Title: Dyes
IPC: C09B23/14
Filed: 1971-12-20
Abstract: 1377180 2 - Styryl - 3 - phenyl - 4 - methoxybenzopyran RICOH KK 20 Dec 1971 [28 Dec 1970 29 Dec 1970] 59124/71 Heading C2C [Also in Divisions C4 and G2] 2 - p - Methoxystyryl - 3 - phenyl - 4 - methoxy- 6 chloro - 1,4 - benzopyran is made by reacting 2 - p - methoxystyryl - 3 - phenyl - 6 - chlorobenzopyrylium perchlorate with sodium hydrogen carbonate, methanol and benzene. Similarly 2 - p - chlorostyryl - 3 - phenyl - 4- methoxy-1,4-benzopyran is synthesized from 2-pchlorostyryl - 3 - phenylbenzopyrylium perchlorate and 2 - p - bromostyryl - 3 - phenyl - 4- methoxy - 6 - chloro - 1,4 - benzopyran from 2 - pbromostyryl - 3 - phenylchlorobenzopyrylium perchlorate.
Patent GB-1243267-A (GB)
Title: A process for the production of polymers
Inventor: NUTZEL KARL
IPC: C07F7/08
Filed: 1969-12-05
Abstract: 1,243,267. Polymerizations catalysed by metallic/organo silanes. FARBENFABRIKEN BAYER A.G. 5 Dec., 1969 [11 Dec., 1968], No. 59482/69. Heading C3P. Olefinically unsaturated compounds are polymerized at -40‹ to 150‹ C. in the presence of a catalyst of the formula where Me is sodium or potassium; R 1  is an aromatic or alkyl substituted aromatic group; R 2  is as R 1  above, or an aliphatic group containing 1-24 carbon atoms, or a cycloaliphatic group containing 5-24 carbon atoms and x is an integer from 1 to 10. The unsaturated monomer(s) may also be polymerized with 0.5 to 30% by weight, based on the polymer of an alkyl substituted aromatic hydrocarbon such as toluene and xylene. Preferred catalysts specified are dipotassium diphenyl silane or dipotassium phenyl methyl silane, and are used in amounts of 0.01 to 5% by weight, based on the monomer(s). The process may be carried out in the presence of an inert organic solvent which may be the copolymerizable alkyl substituted aromatic hydrocarbon. Examples relate to the polymerization of butadiene, butadiene/styrene, and methyl methacrylate in the presence of one or the other of the above two preferred catalysts.