baber/WOPTO huggingface dataset:
Patent GB-482529-A (GB)
Abstract: 482,529. Tiltable chairs. COLLIERKEYWORTH CO. Nov. 27, 1936, No. 32535. Convention date, Nov. 27, 1935. [Class 52 (ii)] The chair is carried by a member 20 pivoted at 25 to the upright 2, and a pair of spring seatings 47 on opposite sides of the pivot coact with opposing spring seatings 40, 41 to hold springs 45 which are both compressed as the chair is tilted. The screwed spindle 2 carries fixedly a casing 1 of box formation with upper and lower spring seatings 47 on opposite sides of the pivot pin 25 of the chair-carrying member 20, which pin passes through the spindle 2 and carries loosely a box-shaped lever 30 with spring seatings 40, 41 opposing the seatings 47. A projection 62 on the chaircarrying member abuts a screw 60 adjustable in a projection 63 on the lever 30 to transmit the tilting movement to two rubber springs 45 arranged between the seatings, adjustment of the screw 60 determining the initial compression of the springs. The spring seatings are formed by projections on the parts engaging a central hole 50 formed in each spring and in the horizontal or non-tilted position shown the seatings diverge outwardly to facilitate the introduction of the springs, which have at their ends metal plates 51 with depressions adapted to engage both the projections in the seatings and the holes in the springs. In the fully tilted position the spring seatings converge outwardly preventing escape of the springs. Stops 55, 56 on the fixed casing 1 limit the tilting movement.
Patent GB-1431086-A (GB)
Title: Glass panels
IPC: C03C10/16
Filed: 1973-10-18
Abstract: 1431086 Foam glass panel SAINT-GOBAIN INDUSTRIES 18 Oct 1973 [20 Oct 1972] 48498/73 Heading C1M A panel comprising a layer of cellular glass covering at least one surface of a sheet of glass ceramic is produced by coating a sheet of glassceramic or a glass capable of being converted thereto by heat with a mixture capable of producing a cellular glass on heating and heating the coated sheet in a closed mould to expand the mixture into cellular glass and, if necessary convert the glass of the sheet into a glassceramic. The mixture is sufficient to occupy a volume after expansion at ambient temperature at least 10 % greater than the volume required to fill the mould. Preferably the mixture has an average grain size of from 50 to 80 Á. The sheet may be sprinkled with a thin layer of glass powder having a relatively coarse grain size, which is then covered with the finer grained mixture. The mixture preferably comprises a glass having a composition in weight per cent of SiO 2  55-65; CaO 6-11; MgO 3-6; alkali metal oxides 13-15; Al 2 O 3  10-14 and 1 to 2 parts by weight of CaCO 3  per 100 parts by weight of glass.
Patent GB-1013393-A (GB)
Title: Method for producing plastics having superior processability
Inventor: NISHIDE MOTOHIKO
IPC: C08F279/04
Filed: 1962-12-27
Abstract: Thermoplastic graft polymers are made by polymerizing a mixture of (a) a polybutadiene latex having an average particle size of 0.2 to 2.0 microns and having a gel content of at least 75%, and (b) styrene, or a mixture thereof with acrylonitrile containing at least 50% by weight of styrene, the proportions of (a) and (b) being such that the resulting graft polymer contains 5 to 40% by weight of polybutadiene.  Polybutadiene latices of the required particle size are made by the emulsion polymerization of butadiene in the presence of relatively small quantities of water and emulsifier.  The resulting graft polymers yield mouldings of high surface gloss. Specification 840,153 is referred to.
Patent GB-1481345-A (GB)
Title: Emergency lighting systems
IPC: H02J9/06
Filed: 1974-11-12
Abstract: 1481345 Transformers GENERAL ELECTRIC CO 12 Nov 1974 [14 Nov 1973] 48850/74 Heading HIT [Also in Division H2] The transformer device associated with an emergency lighting system has a plurality of primary and secondary windings arranged either on a common core or on two separate cores, the windings being arranged such as to have low stray capacitances therebetween. A transformer assembly comprises a core 11 on which are wound a primary winding 9 and its associated secondary winding 10, a second primary winding 17 with associated secondary windings 15, 16, 33, 34. The windings are spaced laterally from one another thereby providing the transformer with low stray capacitance. Windings 15, 16, 33, 34 may be in a pancake form and may be energized by the primary winding 9. The transformer is housed in a container 35 which also embraces the emergency supply inverter 30. The container 35 may be insulated by material 36.
Patent GB-1236985-A (GB)
Title: Magnetic accelerator
Inventor: LINHART JIRI GEORGE
IPC: H05H1/54
Filed: 1968-10-15
Abstract: 1,236,985. Weapons. EUROPEAN ATOMIC ENERGY COMMUNITY. 15 Oct., 1968 [28 Nov., 1967], No. 48903/68. Heading F3C. [Also in Divisions H1 and H2] A magnetic accelerator for plasmoids or metallic projectiles comprises two conductive cylinders disposed one within the other, the outer cylinder being slotted along a generatrix, the two edges of the slot being connected to a current generator and the wall thickness of the inner cylinder increasing progressively along the length of the cylinder such that when current is supplied to the outer cylinder, heat is dissipated in the inner cylinder by induced currents and the inner cylinder vaporizes in the direction of increasing wall thickness; a cusp type magnetic field is produced of which the cusp moves in the direction of vaporization and a plasmoid or metal projectile placed inside the inner cylinder is accelerated in the direction of vaporization.
Patent GB-1070738-A (GB)
Title: Cascade developing apparatus
IPC: G03G15/08
Filed: 1964-12-03
Abstract: 1,070,738. Developing electrophotographic images. L.F.W. LAWES, N G. SHREEVE and N. MIHALIK. Nov. 29, 1965 [Dec. 3, 1964], No. 49193/64. Heading G2H. An apparatus for developing electrophotographic images has a storage hopper 1 with an opening 2a the size of which can be varied by a solenoid actuated slide 2 to vary the rate of discharge of developer. Developer is returned to the hopper by rotating blades 9. In a modification, Fig. 2 (not shown) a storage hopper has three compartments (30) which can be rotated into operative position. Each compartment has a gate (34) for varying the rate of discharge of developer which may be differently coloured in different compartments. The blade 9, Fig. 1, may be modified as described with reference to Figs. 3 and 4 (not shown).
Patent GB-1198493-A (GB)
Title: Polarised Electromagnetic Relays
Inventor: UGON PIERRE EUGENE
IPC: H01H51/28
Filed: 1967-11-01
Abstract: 1,198,493. Polarized electromagnetic relays. P. E. UGON. 1 Nov., 1967 [4 Nov., 1966; 27 Sept., 1967], No. 49691/67. Heading H1N. A polarized "free armature" electromagnetic relay has insulated stop contacts and/or the armature provided with electrically conductive non-magnetic layers to limit armature "sticking." In Fig. 1 ferrite permanent magnets 20, 22 have conductive polepieces 24, 26 and 28, 30 each with a respective conductor 36, 38, 40, 42 and a silver or other contact metal facing 34 which co-operates with the iron armature 50. The armature has a similar metal facing 52 and is moved to bridge either poles 24, 26 or 28, 30 on energization of a coil 44 surrounding the armature cavity 32. Metal permanent magnets with electrical insulators at their ends may replace the ferrite magnets (Fig. 3, not shown). The permanent magnets may be mounted inside the coil (Fig. 4, not shown) or alongside the coil (Fig. 5) with the enclosing can acting as part of the magnetic circuit on which stop contacts 72 are mounted so that the armature 50 has a substantially rocking motion. One of the permanent magnets may be replaced by a ferromagnetic non-retentive member to provide a monostable relay or if both are non-retentive the armature is a permanent magnet (Figs. 7 and 8, not shown).
Patent GB-1384422-A (GB)
Title: Shaving methods and shavers employing ultrasonic energy
IPC: B26B19/00
Filed: 1972-10-27
Abstract: 1384422 Dry shavers ULTRASONIC SYSTEMS Inc 27 Oct 1972 [28 Oct 1971] 49753/72 Heading B4B [Also in Division H2] A dry shaver comprises a guard member 25 having a plurality of apertures 32, a cutter member 30 mounted adjacent the guard for cooperation therewith, means 18 for moving the cutter member to produce a gross cutting movement across the apertures, and means 65, 65a for vibrating the guard member and/or the cutter member at an ultrasonic rate. The cutter member 30 is vibrated by a motor 18 energized from mains or a re-chargeable battery. In order to reduce the friction force between the cutter member and the guard member the latter is vibrated in the ultrasonic range by means of transducers 65, e.g. piezoelectric, secured to the guard member; the vibrations may be in a direction normal and/or parallel to the skin contact surface of the guard member. The transducers may be connected to the exterior surface of the guard; the cutter-member may be formed from a transducer material itself. In the modification shown in Fig. 8, transducers 65a are secured to the cutter member and not the guard member as in the previous embodiment. An ultrasonic converter 62a is contained in the housing 12a of the shaver. In a further embodiment, Figs. 11 and 12 (not shown), transducers 65b are secured to both the cutter member and the guard member. In the construction shown in Fig. 14, the cutter member 30c is mounted on a transmission member 46c coupled to an ultrasonic motor 65c adapted to produce ultrasonic vibrations in the cutter member only in the directions 90c, 92c. The gross cutting movement in this embodiment is produced by an electromagnetic motor 18c. The ultrasonic motor is mounted on resilient supports 110c which thus permit the vibrations produced by both motors 65c, 18c. The ultrasonic vibration generator 62c is mounted within the shaver housing 12c. In modification, instead of electric motor means 18, 18c for producing the gross low frequency vibrations mechanical means, e.g. a hand-wound spring motor may be used. The curved guard member may be replaced by one with a plane skin contact surface, 25c and also assist the penetration of hairs into the hole 32c of the foil. The reduced friction enables a smaller main vibration electromagnetic motor 18c to be used. A choke 140c is provided.
Patent GB-1019468-A (GB)
Title: New pyrido-benzodiazepine derivatives, process for their production and compositions containing them
IPC: C07D/
Filed: 1963-12-23
Abstract: The invention comprises compounds of the general formula <FORM:1019468/C2/1> wherein R1 and R2 independently represent hydrogen, halogen, the trifluoromethyl group, the cyano group, or a C1- 6 alkyl or alkoxy radical, their pharmaceutically acceptable acid addition salts, their quaternary ammonium salts and their N-oxides. The compounds are prepared by reacting a compound of the general formula <FORM:1019468/C2/2> in which R3 represents hydrogen or a C1- 6 alkyl radical and R1 and R2 are as defined above, with a mineral acid, followed, if desired, by conversion to an acid addition salt, a quaternary ammonium compound or an N-oxide.  The starting materials of Formula II above can be prepared by reacting a compound of the general formula <FORM:1019468/C2/3> in which Hal represents a halogen atom, in the presence of an acid binding agent with a compound of the general formula <FORM:1019468/C2/4> in which R31 has the meaning given for R3 with the exception of hydrogen, to give a compound of the general formula <FORM:1019468/C2/5> which is then reduced to give a compound of Formula II above in which R3 is C1- 6 alkyl; the product may be saponified to give a compound in which R3 is hydrogen. The invention also comprises medicaments containing at least one of the compounds of the invention together with at least one pharmaceutically acceptable carrier.  The compounds of the invention have anti-convulsive and muscle-relaxing activity, have depressant action on the central nervous system, and influence the blood pressure.  The compounds may be used as tranquillizers either per os or, in the form of aqueous solutions of their salts, quaternary ammonium compounds or of the N-oxides, also parenterally.
Patent GB-1368063-A (GB)
Title: Packaging method and package
IPC: B65B61/18
Filed: 1970-10-26
Abstract: 1368063 Packages with tear strip AGFA-GEVAERT 21 Oct 1971 [26 Oct 1970] 50835/70 Heading B8C A package, comprising a stack of sheets enclosed in a wrapper which is heat sealed at opposite edges 72, has a tear strip 17 which underlies the wrapper and is punched therethrough to form a loop 70. The wrapper may be partially cut at 71 to form a removable corner piece 73. In a machine for producing the package, a first web 13 is withdrawn from a roll 12 and two tear strips 16, 17 are adhered thereto by heat seal devices 18, 19, the loop 70 being formed by a punch 50. The edges of the web are then folded upwardly by stationary folders 25, 26 and the stack of sheets placed on the web between the upstanding edges. These edges are then folded down on to the stack by further folders 27, 28. A second web 23 is then sealed to the first web 13 by heat-seal devices 34, 35 and the web transversely sealed and severed by a heating bar 38 and a blade 41 carried by a reciprocable carriage.
Patent GB-1362636-A (GB)
Title: Air conditioning unit
IPC: F24F13/20
Filed: 1972-11-04
Abstract: 1362636 Ventilators TEEM Inc AB 4 Nov 1972 50953/72 Heading F4V Air is supplied to a room through a false ceiling 15 from an air distribution conduit 10 by an air conditioning unit comprising a perforated tubular member 14. The member 14 contains a throttling device 23, a heat exchanger 20 comprising an electric heater, and an air distribution member 16 mounted in the end of the tubular member. The member 14 is also surrounded by a sound absorbing cover 18. The unit is held in position by a carrier rod 24 mounted on a yoke 27 fitted into the conduit 10, the rod being secured at its other end under the heater by a wing nut 31. The throttling device is a snap action fit in a collar 13 depending from the conduit 10.
Patent GB-1088426-A (GB)
Title: Condensing separators
IPC: B01D5/00
Filed: 1964-12-17
Abstract: 1,088,426. Surface condensers. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. Dec. 17, 1964 [Dec. 17, 1963], No. 51398/64. Heading F-S. A condensable component is separated by condensation from a hot mixture of gases and vapours, e.g. phthalic anhydride is separated from reaction gases, by introducing the gaseous mixture through pipe 2 into the distribution chamber 4 of a tower, the central portion of which contains metallic hollow rectangular elements 9 arranged vertically in parallel rows and also in stages one above the other up the tower, while cooling fluid flows through the elements. As shown, there are three stages of these vertically-arranged cooling elements, above which there is an uppermost cooling stage 18 comprising horizontal cooling elements. Phthalic anhydride condenses on the cooling elements in the solid state, and the cool gases leave the top of the tower through chamber 15. The cooling fluid flows through the stages in series, either co-currently or countercurrently with the flow of gas. As shown, the cooling fluid enters through connection 13, flows from duct 10 in parallel through the elements of the lowermost stage, and flows via duct 11 and external feeder 14 into the next higher stage. After passing through the uppermost stage 18, the cooling fluid is discharged from the tower, and may be recycled after being suitably cooled. Condensation of vapour in chamber 4 is prevented by means of heating tubes 6. The spacings between the elements 9 in each of the higher stages are smaller than those in the lower stages. When the back-pressure in the tower reaches a certain value, the circulation of cold fluid through the elements is discontinued and is replaced by hot fluid, which causes the solid condensate to melt and run down to the bottom outlet. The apparatus may also be used for the condensation to the solid state in the case of naphthalene, camphor, hexachlorethane and maleic anhydride; the tower may also be used for the condensation of maleic anhydride, alcohol or benzene to the liquid state. Heatexchange fluids referred to are: air, water, steam, brine, oil, and molten metal. Various materials of construction for the tower are specified, e.g. stainless steel, reinforced cement, brick, siliceous cast iron, aluminium.
Patent GB-1383686-A (GB)
Title: Cylinder for an extruder or an injection moulding machine
IPC: B29C45/62
Filed: 1972-11-09
Abstract: 1383686 Casting composite articles XALOY Inc 9 Nov 1972 [10 Nov 1971] 51759/72 Heading B3F [Also in Division C7] Linings for extruder barrels or injectionmoulding cylinders are centrifugally cast in situ from molten alloys containing 30 to 45% by weight tungsten carbide in a nickel- or cobaltrich matrix. The tungsten carbide particles are dispersed in differential concentrations across the cross-section of the lining, the greatest concentration being near the substrate housing of the barrel or cylinder. Preferably the tungsten carbide is only present across 45 to 80% of the lining, enabling machining of the innermost surface to be readily accomplished.
Patent GB-1453931-A (GB)
Title: Converter arrangements
IPC: H02M7/162
Filed: 1972-11-14
Abstract: 1453931 Converting : controlling DC motors GEC-ELLIOTT AUTOMATION Ltd 14 Feb 1974 [14 Nov 1972] 52447/72 Headings H2F and H2J A method of controlling the current in a load 20, e.g. the field or armature of a reversible DC motor, from a pair of inversely-connected rectifiers 12, 13, comprises providing a reference voltage 27 indicative of the desired dirrection and magnitude of output voltage, comparing the reference voltage 27 with a voltage derived from the converter. The rectifiers 12 and 13 are arranged so that each has to pass from a rectifying condition to an inversion condition before it can be turned off and the other turned on, the cessation of operation of one said converter being delayed by any residual current therefrom, such current causing the inversion voltage to tend to balance the change in reference voltage and thus tend to establish stable operation until said residual current ceases. The system is preferably arranged so that the reference voltage 27 is adjustable between positive and negative limits not greater than the maximum inversion voltage the rectifiers can provide, the sign of the reference voltage indicating which rectifier 12 or 13 is to be operative, small values of reference voltages just above or below zero being arranged to cause the respective rectifier 12, 13 to act as an inverter. A dead zone may be included about zero. Alternatively firing pulses may be derived from a common circuit switched to the respective rectifiers 12, 13. Figs. 5 and 6 (not shown) show graphically the operation into an inductive load, such as the field of a DC motor and into a regenerative load such as the armature of said motor when braking. The change over to inverting operation may also occur when changing speed without actual reversing.
Patent GB-1142695-A (GB)
Title: Automatic phase control system
IPC: G06G7/184
Filed: 1966-11-23
Abstract: 1,142,695. Integrators; electronic counters. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 23 Nov., 1966 [8 Dec., 1965], No. 52516/66. Headings G4A and G4G. [Also in Division H3] An integrating circuit 106, Fig. 7, comprises a small capacitance 230 in parallel with a larger capacitance 232 and a series resistance 234, the junction of the capacitances being earthed through a Zener diode 236. The circuit includes a D.C. output amplifier comprising the three cascaded transistors 238, 240 and 242, and the Zener diode 236 provides non-linear compensation for the output amplifier stage threshold. Input pulses of either polarity applied to terminal 125 are integrated with low gain to provide an output at terminal 120. A similar input may be applied to terminal 125<SP>1</SP> when it is integrated with high gain.
Patent GB-1490740-A (GB)
Title: Method for regulating the torque of an induction motor
IPC: B60L9/16
Filed: 1974-12-06
Abstract: 1490740 Control of A.C. motors BROWN BOVERI & CIE AG 6 Dec 1974 [8 Dec 1973] 52872/74 Heading H2J [Also in Division G3] An induction motor (not shown), which may be of the single or multi-phase and squirrel cage or wound rotor type and may be used in traction drives, is fed from a variable voltage and frequency static frequency changer or inverter (not shown), whose voltage and frequency are determined by signals U 1  and f 1  derived from a signal of desired torque Msoll by the circuit shown, which comprises a first branch 2, 3, 4 consisting of a function generator 2 receiving the signal Msoll from a device 1 (for example a motor speed controller providing a reference signal representing Msoll) and deriving therefrom a signal Isoll representing a desired value of stator current; a current regulator 3 which compares signal Isoll with a measured stator current Iist; and a computer 4 which multiplies the error signal from regulator 3 by a signal f 1 , representative of a required stator frequency, to produce the signal U 1  which is representative of a required stator voltage and is applied to control the frequency changer or inverter; and a second branch 5, 6, 7 consisting of a function generator 5 in which is stored a characteristic relating slip frequency f 2  to the maximum torque values of a family of functions relating torque and slip frequency for different stator currents and a predetermined constant temperature of the rotor, this characteristic enabling the generator 5 to produce from signal Msoll a signal f 2 soll of required slip frequency providing the greatest possible torque for a given stator current; a computer 6 which multiplies the signal f 2 soll by a signal # R  proportional to the actual rotor temperature; and an adding means 7 which adds the temperature-corrected signal from member 6 to a signal f n ist proportional to the rotor speed (f n ist is equal to rotor speed (n) times number of motor pole pairs (p)), the output signal f 1  of adder 7 representing a required stator frequency and being applied to computer 4 and to control the frequency changer or inverter. Typical torque (M)/slip frequency (f 2 ) characteristics are given for various stator currents and cold and hot rotors, Fig. 1 (not shown), comparison being made between torques obtained by the known method of maintaining a constant stator flux and the higher torques obtained from the maximum points on the torque-slip frequency characteristics using the circuit shown. Temperature may be measured by a resistance thermometer on the rotor, on the stator near the air gap or on the stator with the temperature signal being corrected by thermalsimulation of the heat flow from the rotor to the stator.