baber/WOPTO huggingface dataset:
Patent GB-1168560-A (GB)
Title: Electrical Switch with Snap Action
Inventor: DAVIS ALLEN VAN CLEVE
IPC: H01H35/34
Filed: 1967-09-02
Abstract: 1,168,560. Pressure actuated switches. A.V.C. DAVIS. 2 Sept., 1967, No. 40219/67. Heading H1N. A Belleville spring 22, Fig. 1, or 22<SP>1</SP>, Fig. 9, has mounted at its centre for movement therewith a movable contact assembly comprising a plate 13 or 13<SP>1</SP>, a cup 20, and contacts 29, 30 deposited on insulation 27, 28. Spring 22 or 22<SP>1</SP> normally biases contact 29 to make with a fixed contact 41 or 411, and when fluid pressure applied to diaphragm 11 and a force applied to a slideable shoe 14 through a spring 17 cause spring 22 or 22<SP>1</SP> to snap upwardly contact 30 makes with a fixed contact 42 or 42<SP>1</SP>. When this pressure is relieved, spring 22 or 22<SP>1</SP> snaps back to reclose contacts 29, 41 or 29, 41<SP>1</SP>.Contacts 41, 42 or 41<SP>1</SP> ,  42<SP>1</SP>are electrically connected through metal parts 43, 44 or 43<SP>1</SP>, 44<SP>1</SP>.During initial movement of spring 22 or 22<SP>1</SP>from either stop position defined by contact 41 or 42, (or 41<SP>1</SP> or 42<SP>1</SP>)its deflection local characteristic exhibits a positive slope before it exhibits a negative slope in the snap region, and to prevent contact chatter when spring 22 or 22<SP>1</SP> exhibits its positive slope auxiliary contacts, 61, 62, Fig. 1, or 72, 73, 75, 76, Fig. 9, are provided. Leaf springs 61, 62, Fig. 1, are connected to the fixed contacts 41, 42, and when, for example, contacts 29, 41 break, electrical connection is maintained therebetween while spring 22 exhibits its positive slope by contact 61 engaging contact 29 (Fig. 3). In Fig. 9, Belleville spring 22<SP>1</SP> has an integral tongue 70 mounting insulation 71 with deposited contacts 72, 73 which are respectively connected to contacts 29, 30 through leads. When contacts 29, 41<SP>1</SP> and 30, 42<SP>1</SP> make, contacts 72, 73 are respectively engaged with contacts 75, 76 which are electrically connected to contacts 41<SP>1</SP>,42<SP>1</SP>through metal parts 77, 78. When, for example, contacts 29, 41<SP>1</SP> break, electric connection is maintained therebetween while spring 22<SP>1</SP> exhibits its positive slope through contacts 72, 75.
Patent GB-886568-A (GB)
Title: Improvements in or relating to stanchions for passenger transport vehicles
Inventor: HOROVITZ MARCUS
IPC: B60N3/02
Filed: 1959-11-27
Abstract: 886,568. Omnibuses. METALASLIK Ltd. May 30, 1960 [Nov. 27, 1959], No. 40356/59. Class 108(1). A stanchion 16 is connected to the seat frame extension 13 by means of a rubber-lined ball and socket joint 10 and at its upper end is provided with an enlargement 37 which is supported in the roof socket 31 by means of resilient rings 401 which are preferably in circumferential tension and radial compression. The resilient insert 33 limits vertical movement.
Patent GB-953419-A (GB)
Title: Improvements in or relating to excess voltage safety devices
IPC: H04M1/74
Filed: 1961-11-14
Abstract: 953,419. Safety arrangements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 14, 1961 [Nov. 17, 1960], No. 40704/61. Heading H2H. [Also in Division H4] A safety device wherein the application of excessive voltage to an apparatus 1 is prevented and which apparatus 1 may be a transistorized repeater in carrier frequency telephone apparatus comprises two Zener diodes 8, 9 connected in parallel across supply lines 2, 3, the Zenor diodes having opposite pass directions, each of the Zener diodes being connected in series with a conventional diode 20 or 21 of the same pass direction as its associated Zener diode, and each junction between a Zener diode and a conventional diode being connected by way of a resistor 22 or 23 to a source 24 of bias voltage which supplies a blocking voltage for the conventional diodes 20, 21. Further voltage limiting devices in the form of carbon blocks 10, 11 are provided.
Patent GB-933549-A (GB)
Title: Dielectric coated electrodes
IPC: H01G13/00
Filed: 1959-12-02
Abstract: A polymeric coating is produced on an object, particularly an electrode, by ionizing boron trifluoride or silicon tetrafluoride in a gaseous electric discharge and, by means of an electric field, attracting ions from the material on to the object to produce the coating.ALSO:A polymeric coating is produced on an object, particularly an electrode, by ionizing an inorganic material, a silicon containing material, a fluorine containing material or a boron containing material, in a gaseous electric discharge and, by means of an electric field, attracting ions from the material on to the object to produce the coating.  The treated material may be tetrafluoroethylene, difluoroethylene, monochlorotrifluoroethylene, dichlordifluorethylene, dimethyl dichlorsilane, diphenyl-dichlorsilane, dimethylsilicone, carbon tetrafluoride, hexafluorethane, ethyl silicate, trimethoxyboroxin, or methyl borate.
Patent GB-1397164-A (GB)
Title: Thermostat for viscous liquids
IPC: G05D23/20
Filed: 1973-08-31
Abstract: 1397164 Liquid-film heat exchangers BAYER AG 31 Aug 1973 [31 Aug 1972] 41011/73 Heading F4S  A device for bringing the temperature of a liquid (e.g. a silicone oil) to a desired value consists of a cylindrical hollow body 4 of metal, within which is a heating or cooling system and over the outer surface of which flows a film of the liquid being heated to cooled, from a feed pipe 2, means being provided to sense the temperature of the liquid film as it leaves the surface of the hollow body and to adjust accordingly the heating or cooling system within the body. As shown, the attemperated liquid flows into a trough 6 from which it passes via a spout 7 to a collecting pipe 8. A sensor 13 in the trough 6 detects any required change in the liquid temperature and acts through a controller 14 to change the wall surface temperature of the body 4. This may be done by varying either the throughflow rate or temperature of the tempering liquid entering the hollow body through a pipe 10. The heating or cooling system within the body 4 can comprise a tube coil; or electric heating may be used. Means for distributing the liquid over the surface of the body 4 may comprise a conical end surface 3, or a scraper (12, Fig. 3) rotating over a flat end surface. The body outer surface may be roughened to assist heat transfer.
Patent GB-875645-A (GB)
Title: A printing cylinder and a method of producing the same
IPC: B41F27/02
Filed: 1958-12-19
Abstract: 875,645. Magnets. DEUTSCHE EDELSTAHLWERKE A.G. Dec. 19, 1958 [Dec. 21, 1957], No. 41121/58. Drawings to Specification. Class 35. [Also in Group XVI] Magnetic elements are as described in Specification 875,646 except that in some cases the soft iron bars are tapered in cross-section. Specification 789,632 also is referred to.
Patent GB-1246866-A (GB)
Title: Holder for bottles
Inventor: WENDLAND GERTRUD
IPC: B60N3/10
Filed: 1969-08-19
Abstract: 1,246,866. Removing crown corks. G. WENDLAND. 19 Aug., 1969 [26 Aug., 1968; 7 May, 1969], No. 41365/69. Heading B8T. [Also in Division A4] A holder for bottles which comprises a housing which may be fixed to a surface, the bottom of the housing having an opening which extends into a cut-out in the front wall of the housing, a valve ball of elastic material rotatably arranged in the housing on a shaft, part of the ball being accessible from the outside through the cut-out, and a guide having two spaced-apart arms for embracing a bottle neck, may also have a claw, preferably of metal, in the lower part of the assembly, below the guide, for opening bottles with crown closures. The housing may be constructed in two parts, a base carrying the ball and the guide, the base being attached to the surface, and a cover which can be clamped or snapped on to the base, the cover having the cut-out, and terminating above the claw. A wedge may be used to compensate for surfaces other than vertical when attaching the holder to the surface.
Patent GB-906781-A (GB)
Title: An oil-cooler for drop forging hammers
IPC: B21J13/00
Filed: 1960-12-01
Abstract: 906,781. Electric water heaters. LANGENSTEIN & SCHEMANN A.G. ERNSTHUTTE. Dec. 1, 1960 [July 16, 1960], No. 41377/60. Class 39 (3). [Also in Groups XIII and XXII] An oil reservoir may be heated by means of water flowing through a tube 16 wound in double coils around a supporting tube 18 within which electrical resistance heating elements 25 are encased in aluminium. The heater rods 25 may be electrically connected in series or in parallel. The end 25a of one heater rod is connected by means of a terminal 26 with an electric cable. The end of a second rod is connected with a similar cable which is not shown. The terminals and cable ends are protected by a cover 27.
Patent GB-908290-A (GB)
Title: Process for the preparation of 1,1,1-trifluoro-2-bromo-2-chloroethane
Inventor: CROWTHER ALBERT FREDERICK
IPC: C07C17/18
Filed: 1959-12-04
Abstract: 1,1,1 - Trifluoro-2-bromo-2-chloroethane is prepared by heating bromochloroacetic acid or a salt (e.g. an alkali metal or alkaline earth metal salt), halide or C1-6 alkyl ester thereof with sulphur tetrafluoride.  A fluoride ion acceptor may be present as catalyst, particularly an acid or acid reacting catalyst, e.g. HF or BF3. Preferably between 1 and 6 moles of sulphur tetrafluoride are used per mole of bromochloracetic compound. Superatmospheric pressure is preferably used.  Specification 823,336 is referred to.
Patent GB-1385992-A (GB)
Title: Method for producing high strength finished forms from ferrous  metal powders
IPC: B22F3/02
Filed: 1972-09-07
Abstract: 1385992 High strength sintered ferrous bodies GLEASON WORKS 7 Sept 1972 [18 Oct 1971] 41615/72 Heading C7D Strong sintered ferrous bodies e.g. gears, are made by compacting to 75-90% theoretical  density a powder mix of 0.25-0.6 wt per cent graphite and atomized ferrous metal containing 0.1-0.3 wt per cent oxygen, sintering at 2000- 2450‹F to react at least 70% of the surface oxides with the graphite and forging the sintered compact while it is still hot. The ferrous powder may be water atomized iron or steel and compaction is at 20,000-60,000 p.s.i.g, isostaticatly or a combination of mechanical and isostatic compaction. Sintering is preferably by induction heating for less than 10 minutes and forging is effected while the CO from the C + oxide reaction is still being evolved.
Patent GB-1523219-A (GB)
Title: Block copolyesters which crystallise rapidly
IPC: C08G63/181
Filed: 1976-10-07
Abstract: 1523219 Block copolyesters BAYER AG 7 Oct 1976 [11 Oct 1975] 41727/76 Heading C3R A thermoplastic block copolyester (P) comprises, by wt. 60-95% (A) and 40-5% (B), (A) and (B) being linked via carboxylate groups, where (A) comprises residues of (a) terephthalic acid, (b) ethylene glycol, and (c) specified C3-8 codiols; and (B) consists of block segments of average M.W. 400-1,000,000 with glass transition temperature <0‹ C. In (A), #90% mole of the acid component is (a), and, based on moles (b) and (c), there is 90- 99À5% (b) and 10À05% (c). (P) has #intrinsic #0À4 dl./g., is highly crystalline and crystallizes rapidly. (P) may be made by (1) esterifying or transesterifying, in the presence of a catalyst, (B) together with the ingredients forming (A) at 150-250‹ C., and (2) polycondensing the reaction product in the presence of an esterification catalyst at 200-300‹ C. under reduced pressure. In step (1), a reaction between (a) and (b) may be performed first, followed by addition of (c) and (B). Component (B) may be a polyolefin, e.g. carboxyl-terminated, or polyalkylene glycol. In (A) # 10% mole of the acid residue component may be a residue of another C4-14 dicarboxylic acid. Lists of conventional catalysts and additives are given. 0À01-1%, based on (P), of nucleating agents may be incorporated
Patent GB-1024352-A (GB)
Title: Process for the treatment of fillers for paper
IPC: D21H17/69
Filed: 1963-10-23
Abstract: Paper filler particles, e.g. pigmentary kaolinite or titanium dioxide, are coated with cellulose by precipitating the cellulose from solution on to the particles.  The cellulose to pigment ratio may be from 1 : 30 to 1 : 3. Precipitation is achieved by acidifying, e.g. with a sulphuric acid-sodium sulphate solution, a xanthogenate or cuprammonium cellulose solution, or by dilution of a solution of cellulose in a concentrated salt solution.  A slurry of 2 parts of pigment particles and 3 parts of water is added to the cellulose solution, and the solution mixed and added to a coagulation bath in thin streams with violent stirring.  The precipitate is filtered, washed with 1% Na2S, washed, optionally bleached and filtered.ALSO:Paper filler particles, e.g. pigmentary kaolinite or titanium dioxide, are coated with cellulose by precipitating the cellulose from solution on to the particles.  The cellulose to pigment ratio may be from 1 : 30 to 1 : 3.  Precipitation is achieved by acidifying, e.g. with a sulphuric acid-sodium sulphate solution, a xanthate or cuprammonium cellulose solution, or by dilution of a solution of cellulose in a concentrated salt solution.  A slurry of 2 parts of pigment particles and 3 parts of water is added to the cellulose solution, and the solution mixed and added to a coagulation bath in thin streams with violent stirring.  The p  precipitate is filtered, washed with 1% Na2S, washed, optionally bleached and filtered.  This treatment improves bonding between the particles and wood-pulp fibres.
Patent GB-1506357-A (GB)
Title: Slide bearing for use in a combustion engine and engine equipped with such a bearing
IPC: F16C35/02
Filed: 1976-10-08
Abstract: 1506357 Bearings STORK-WERKSPOOR DIESEL BV 8 Oct 1976 [10 Oct 1975] 41970/76 Heading F2A In a journal bearing for rotatably supporting a shaft which is subjected to a radial load which varies in direction, e.g. an I.C. engine crankshaft, the bearing comprising shells held between caps with intermeshing teeth (Fig. 1), stress on the valleys between adjacent teeth is reduced by providing grooves between the roots of adjacent teeth (Fig. 2) such that a clearance space is provided between each tooth tip and valley.
Patent GB-1481803-A (GB)
Title: Lubrication of rotatable members
IPC: F01L7/16
Filed: 1973-09-07
Abstract: 1481803 Bearings; lubricating CROSS MFG CO (1938) Ltd 9 Sept 1974 [7 Sept 1973 (2)] 42107/73 and 39201/74 Divided out of 1481802 Heading F2A [Also in Division F1] A bearing assembly comprises a housing 11; a cylindrical member 10 with a recess 13 formed in its cylindrical surface and mounted in the housing 11; and a rigid scraper blade 18 mounted within the housing 11 and resiliently biased towards the cylindrical surface, the axial extent of the blade 18 being greater than that of the recess 13, and the magnitude of the resilient bias coupled with the rigidity of the blade being such that the blade 18 is deflected into the recess 13 by an amount not greater than 1/3000 of the diameter of the cylindrical member 10, there being a passage 23 provided in the housing 11 to allow draining of lubricant removed by the scraper blade 18, and one or more non-return valves 21, 22 in the passage 23. The embodiment is a reciprocating engine with a rotary valve 10 with two recesses 12, 13 connected to inlet and outlet ports respectively (not shown). Lubricant is copiously supplied at 17 for lubrication and cooling and is transferred to a passage 23 via grooves 31 and a non-return valve, Fig. 5 (not shown) for recirculation. A second non-return valve 24, 25, helps to maintain reduced pressure in the passage 23 produced by the movement of a piston 16 or by an auxiliary pump (not shown). The bias on the scraper blade 18 is maintained by a number of springs 28, Fig. 3 (not shown). A lubricant film thickness of 40 to 50 Á-inches after scraping is mentioned. Reference is made to Specification 423,474 and also the Specification 1,481,802.
Patent GB-1016730-A (GB)
Title: Novel enamine steroids and processes for their preparation
IPC: C07D295/04
Filed: 1964-10-15
Abstract: The invention comprises a 1,3-dienamino-3,5-diene steroid or a 3-enamino-1,3,5-triene steroid wherein the amino group is derived from a secondary amine and processes for the preparation thereof wherein a 3-keto-D 1,4-steroid is reacted with a sec. amine at elevated temperature to obtain a 1,3-dienamino-3,5-diene steroid which, if desired, is subjected to pyrolysis to obtain a 3-enamino-1,3,5-triene steroid.  Reaction with the sec. amine is effected in the absence of a solvent and catalyst and in the absence of any acidic material.  Formation of the above compounds may be utilized in the protection of the 3-keto group of a D 1,4-steroid while conversions are effected elsewhere in the molecule, e.g. D 1-testosterone may be prepared by reducing the keto group of androsta-1,4-diene-3, 17-dione.
Patent GB-1178444-A (GB)
Title: Vehicle Seats.
Inventor: BENNETT HUGH LESLEY
IPC: B60N2/75
Filed: 1967-09-16
Abstract: 1,178,444. Seats. H. L. BENNETT. 11 March, 1968 [16 Sept., 1967], No. 42279/67. Heading A4J. A vehicle seat back contains a pair of crossed levers, pivoted at their intersection, so that rearward pressure on the back-rest causes padded arm-rest extensions to be telescopically projected, from either side of the seat, thus forming a safety barrier in front of the occupant. The outward motion of the extension tensions return springs, which become operative on releasing a catch, to retract them and allow the occupant to rise.
Patent GB-1401599-A (GB)
Title: Fibril and process
IPC: D01D5/18
Filed: 1973-09-07
Abstract: 1401599 Paper made from synthetic polymer fibres GULF RESEARCH & DEVELOPMENT CO 7 Sept 1973 42285/73 Addition to 1372116 Heading D2B [Also in Division. B5] Paper is made from fibrils prepared by the process of the parent Specification 1372116 modified by replacing the starting material polyolefin having an inherent viscosity of at least 3.5 by a polymer mixture containing at least 20% by weight of an olefin polymer having an i.v. of at least 3.5 and up to 80% by weight of a diluent polymer, the olefin polymer being (a) an ethylene polymer containing less than 10% by weight copolymerised therewith of a C 4  or higher olefin monomer.; (b) a polypropylene polymer containing less than 50% .by weight of copolymerised ethylene or (c) a mixture of (a) and (b), and the diluent polymer being any polymer which is soluble in the solvent used in fibril manufacture at the temperature used during the process. In Examples paper is made from fibrils prepared from the following olefin polymer/ diluent polymer/solvent mixtures:-(1) aliphatic hydrocarbon solvent (boiling range 155‹ - 180‹C) solutions of linear polyethylene (i.v.> 3.5) mixed with polystyrene; low density polyethylene/polypropylene mixture; low density polyethylene; polypropylene; copolymers of maleic anhydride and octadecene; copolymer of ethylene and methyl acrylate, ethyl acrylate, isopropylacrylate, methyl methacrylate and vinyl acetate; and copolymers of an α-olefin with alkylated vinyl pyrrolidones; (2) xylene solutions of linear polyethylene (i.v.>3.5) mixed with copolymers of maleic anhydride and tetradecene, decene or styrene; and copolymers of alkylated vinyl pyrrolidone with α-olefins; and (3) tetralin solutions of maleic anhydride/hexene copolymer alkylated vinyl pyrrolidone/αolefin copolymer mixed with the linear polyethylene.
Patent GB-1110294-A (GB)
Title: Improvements in or relating to fire detection equipment
Inventor: TAYLOR DAVID SHAW
IPC: G08B17/12
Filed: 1965-10-05
Abstract: 1,110,294. Photo-electric fire detection. THRINGS ADVANCED DEVELOPMENTS Ltd. Oct.5, 1966 [Oct. 5, 1965], No.42318/65. Heading G1A. A fire detector, particularly for a coin-freed self-service petrol station, is insensitive to increases in infrared radiation if accompanied by increases in visible radiation, such as a change in sunlight or electric lamp illumination at the petrol station, but responds to an unaccompanied increase in infrared illumination, such as a fire irrespective of the current datum level of infrared radiation provided, in the particular usage, by the natural or artificial illumination. In the preferred embodiment radiation from the monitored area is chopped at a frequency higher than main's supply frequency before reaching a photoresistive or photo-voltaic cell responsive to infrared radiation and one or more photo-emissive cells responsive to visible radiation. The electrical signals from the infrared detector and the combined signal from the visible detectors, if more than one, after amplification and rectification provide negative A. C. signals which are fed via capacitors to the respective one of two triode valves each having a relay in its anode circuit. With a simultaneous increase in both kinds of radiation the grids are driven negative to release both relays, the alarm giving function of the infrared relay being nullified by the visible relay; after the increase in radiation the coupling capacitors discharge via leakage resistors bring- ing up the relays. With a simultaneous decrease both relays are maintained operated with no effect on the alarm circuitry. However with an unaccompanied increase in infrared radiation, only the infrared relay is operated to raise the alarm which continues so long as the radiation level is maintained since the capacitor leakage resistor is now disconnected by make contact of the visible relay, the grid potential being maintained negative by a further capacitor. In the other circumstances the visible relay responds before the infrared relay. An equivalent transistor circuit may be used.
Patent GB-1044167-A (GB)
Title: Friction-free thermostat
IPC: H01H37/52
Filed: 1963-10-28
Abstract: 1,044,167. Thermal switches. STEVENS MANUFACTURING CO. Inc. Oct. 28, 1963 [Nov. 2, 1962]. No. 42377/63. Heading H2B. In a thermal switch, a bimetallic blade 23 actuates contact blades 21, 22, via an insulating push link 44 (see also Fig. 4, not shown) with change of temperature, link 44 having a tongue 47 engaging a socket aperture 49 (Fig. 3, not shown) in bimetal blade 23 and also having flat shoulders 51, 52, resting on a convex surface 50 of the bimetal around aperture 49 thereby to establish a line contact at 53 therebetween so as to provide a fixed length of lever arm on bimetallic blade 23 throughout its operating range of movement. An adjusting screw 34 sets the operating temperature of the switch by adjusting the position of contact blade 22.
Patent GB-1028315-A (GB)
Title: Alternators
Inventor: SOLOMON HENRY JOSEPH
IPC: H02K9/19
Filed: 1961-11-28
Abstract: 1,028,315. Cooling dynamo-electric machines. ROTAX Ltd. Nov. 8, 1962 [Nov. 28. 1961], No. 42444/61. Heading H2A. An alternator of construction similar to that described in Specification 959,474 is cooled by coolant, preferably lubricant, which circulated to chambers 10, 11 adjacent the field coils 7 and through helical passages 12, 14 in the casing, these passages being made up of helical grooves in an inner casing shell 13 closed by an outer shell 1. Coolant enters at 8, circulates passage 14 to chamber 11 and bearing 16, then circulates passages 12 to chamber 10 and bearing 15, and thence to a drain via outlet 9. Bearing 16 is drained by passage 17, and bearing 15 drains into an adjacent apparatus casing (not shown).
Patent GB-1469205-A (GB)
Title: Vehicle drive train
IPC: F16F15/14
Filed: 1975-10-16
Abstract: 1469205 Vehicle drive trains CATERPILLAR TRACTOR CO 16 Oct 1975 [3 March 1975] 42501/75 Heading B7H A tractor unit 14, Fig. 1, is provided with a vibration absorber 10 for reducing the amplitude of torsional vibrations of a drive train 12 including a diesel engine 16, a drive shaft 18, a transfer gear train 20 and a gear-box 22, the vibration absorber 10 comprising an inertia weight 32, Fig. 3, supported by a rotary bearing 40 and connected to a drive flange 60 by a resilient ring assembly 44. In the alternative embodiment of Fig. 5, the vibration absorber 84 is generally of similar construction to the vibration absorber 10 of Figs. 1 and 3, but is supported on a stub shaft 92 secured to the crank-shaft 88 of engine 16. The embodiment of Fig. 5 further includes a viscous torsional vibration damper 94 comprising a weight 96 disposed in a housing 100 containing a viscous liquid.