baber/WOPTO huggingface dataset:
Patent GB-1351328-A (GB)
Title: Elevel-control arrangement
IPC: H03G3/20
Filed: 1971-12-21
Abstract: 1351328 Gain control circuits TELEFONAKTIEBOLAGET LM ERICSSON 21 Dec 1971 [22 Dec 1970] 59437/71 Headings H4R and H4K In an automatic gain control system, particularly for use in an echo suppressor, a loudspeaking or amplified telephone, the output of a gain controlling element is sensed and an integration performed on a signal which is a function of the period of time the output signal is above a predetermined level. When the integrated function exceeds a predetermined value the gain of the device is reduced and maintained at the reduced value until a control signal is applied to a resetting input. As described the output signal of the receive channel of an amplified telephone set, Fig. 3, is applied to a threshold circuit A, Figs. 2 and 3, signals above a predetermined threshold cut off transistor Q and allow capacitor C1 to charge from the supply through R3 and CR1. When the capacitor C1 has charged to a predetermined value Q2 conducts causing switching circuit C to change state, applying a gain controlling signal to line S. Capacitor C1 has a fast charge slow discharge circuit formed by resistors R3, R4, and capacitor CR1 so that the switching is effected rapidly, irrespective of normal intersyllabic gaps in the speech, and the switch C once operated remains operated until reset by operation of S1 or detection of an impulsing signal, or battery inversion on terminals L, which are connected to the line L, Fig. 3. In a modification the integrating circuit can control a number of switch units C1 to C4 actuated successively to introduce a number of steps of gain change. As applied to an echo suppressor or a loudspeaking telephone set, Fig. 1 (not shown) a comparison circuit J differentially controls the gain in the send and receive channels with gain in the receive channel modified in accordance with the absolute level of the signal therein, as detected by the circuit of Fig. 2, the output from which modifies the comparison circuit J.
Patent GB-1311826-A (GB)
Title: Fluid metering pump
IPC: F04B7/00
Filed: 1971-12-22
Abstract: 1311826 Reciprocating pumps GREINER ELECTRONIC A G 22 Dec 1971 [22 April 1971] 59748/71 Heading F1A A pump comprises a plunger 6 reciprocable in a rotary valve member 9 to draw liquid into a pumping chamber 5 from an inlet chamber 8, in the valve position shown, and to discharge the liquid from chamber 5 to an outlet 23 via arcuate groove 21, in another position of the valve, Fig.2 (not shown). A sealing lip 19 of the valve engages the plunger. The valve is actuated by a sleeve 15 acting through pins 16 or a spring-loaded coupling. For corrosive liquids, plunger 6 is of glass, valve 9 of P. T. F. E. and housing 3 of glass or F.E.P.
Patent GB-1087699-A (GB)
Title: Improvements in the lasting of shoes
IPC: A43D44/00
Filed: 1966-07-01
Abstract: The subject matter of this Specification forms part of that described in Specification 1,087,698 but the claims differ.
Patent GB-1249145-A (GB)
Title: Apparatus for washing vehicles
Inventor: WEIGELE GEBHARD
IPC: B60S3/06
Filed: 1968-12-16
Abstract: 1,249,145. Vehicle washing apparatus. G. WEIGELE, and J. SULZBERGER. 16 Dec., 1968 [16 Dec., 1967], No. 59781/68. Heading B7J. Apparatus for washing motor vehicles passing therethrough comprises two horizontal rotary brushes 9, 10 each mounted at one end of a pivoted lever 11 or 12 respectively which levers 11 and 12 are swingable about horizontal axes, have counterweights 17, 18 respectively at their opposite ends, are interconnected e.g. by a cable 21, and in the inoperative position (of Fig. 7) are inclined towards each other. As shown in Fig. 7 lever 11 is inclined at an acute angle α of maximum 90 degrees and lever 12 at an obtuse angle # of minimum 90 degrees. Levers 11, 12 have pivot axes 13, 14 respectively on which are mounted pulleys 19 and 20 respectively connected by the cable 21 wound such that upward movement of brush 9 as a vehicle to be washed passes through the apparatus causes an equal upward movement of brush 10 which does, however, rotate in the opposite direction to brush 9. A counterweight 23 acts on the pulley 19 to reduce the pressure of brush 9 during washing of the vehicle, a supporting plate 24 being provided on to which counterweight 23 can drop after predetermined upward movement of brush 9 to thereby become ineffective. In an alternative embodiment (Fig. 9) levers 11 and 12 are each connected by cables 29 or 30 to the piston rod 25 or 26 of an hydraulic piston and cylinder device 27 or 28 and these devices are connected by a conduit 31 for upward movement of brush 9 to be transferred in equivalent amount to brush 10. A pump 35 is connected to the conduit 31 by a valve 34 and produces a pressure to counteract the weight of the brush 10 acting on a piston 33, and a time switch 36 is provided to turn off the pump 35 after a time delay corresponding to the raising of brush 10 to the level of the vehicle roof.
Patent GB-1333106-A (GB)
Title: Semiconductor devices
IPC: H01L21/3213
Filed: 1970-12-18
Abstract: 1333106 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 18 Dec 1970 [30 Dec 1969] 60213/70 Heading H1K In the manufacture of semi-conductor devices a metallic film deposited on a substrate is bombarded with ions having energies of at least 10 KeV. When the energy is appropriately selected having regard to the thickness and material of which the film is made it renders the film more resistant to chemical attack, bonds it more firmly to the substrate material and where the substrate is a semi-conductor improves the contact thereto. Typically the substrate is a silicon wafer containing diffused device regions and is coated with a layer of silica apertured over these regions. The metal, e.g. aluminium, copper or molybdenum may be deposited overall, bombarded with ions of, e.g. boron, nitrogen, helium, neon, argon or arsenic within the apertures and over the sites of conductive lands extending to the apertures and then etched to remove the unbombarded metal. In another example silver and aluminium contacts are deposited on N- and P-type regions respectively of a germanium wafer and ion bombarded to alloy them in. The ions may be derived from an accelerator, passed through a mass analyser which selects one species of atom and one energy, which are then focused on the areas to be treated. Alternaively a mask is disposed in an unfocused beam to determine the pattern of bombardment.
Patent GB-1376000-A (GB)
Title: Ventilated fluorescent tube units
IPC: F21V33/00
Filed: 1971-12-30
Abstract: 1376000 Ventilating; lighting fittings SVENSKA FLAKTFABRIKEN AB 30 Dec 1971 [5 Jan 1971] 60777/71 Headings F4V and F4R A ventilating and fluorescent tube fitting comprises a casing 2 covered by a light-transmissive and light-distributing plate 5, the casing including holding means 3 for a plurality of fluorescent tubes 4. Air is supplied to a room 8 by means 6, which comprises one or more slots 11 in which a movable body 12 is mounted between the two slot edges 13, the body 12 causing the air to pass over the surface of the plate 5 and into the room. Air is exhausted from the room into the casing 2 through a slot (10) extending along one edge of the plate. This air cools the fluorescent tubes 4 before passing into the exhaust ducts of the ventilating system.
Patent GB-620637-A (GB)
Abstract: 620,637. Stroboscopic apparatus. HARTRIDGE, L. Jan. 24, 1947, No. 2311. [Class 97 (i)] [Also in Groups XXVII, XXVIII and XXXVII] Apparatus for testing fuel-injection pumps and injectors comprises a neon lamp 3 located to illuminate the spray issuing from the injectors 2 and connected to an induction coil 4 in the primary of which is a make-andbreak contact 5 actuated by a cam 5<SP>1</SP> on the pump shaft and carried by a graduated ring 12 adjustable so that the lamp may be actuated at any desired angular position of the shaft 6. The ring 12 is carried by an insulated disc 11 fastened to a bushing 13 angularly adjustable inside a fixed collar 14, and the injectors 2 are mounted in transparent tubes 20 containing gauze baffles to make the spray more visible. For testing the phase angles of a multi-element pump 8, the ring 12 is rotated to adjust the contacts 5 so that the lamp 3 is energized at the instant at which injection starts from the first pump element. An adjustable stop 18 is then fixed at the zero of the scale on ring 12 and the ring readjusted to energize the lamp 3 at the beginning of injection from the second pump element, and the phase angle determined from the reading on the scale. The duration of injection of each injector is also determined from the readings when the lamp is energized first at the beginning and then at the end of injection. In a modification, the contact 5 and induction coil 4 are replaced by a fly-wheel carrying a magnet which produces a small current at each revolution in a coil carried by the ring 12, the current actuating the lamp 3 after amplification.
Patent GB-630224-A (GB)
Abstract: 630,224. Closed solid - fuel stoves. ILLINOIS FOUNDATION, UNIVERSITY OF. May 12, 1947, No. 12768. Convention date, May 27, 1946. [Class 126] [Also in Group XII] A closed solid-fuel stove comprises a firebox 11 including a coking zone 21, a cokeburning zone 22 beneath the coking zone, a combustion zone 15 beside the coking zone and above the coke-burning zone and a grate 13 forming the bottom of the cokeburning zone. An air inlet 41 above the coking zone admits air downwardly through the coking and coke-burning zones into the combustion zone and further air is supplied, through a passage 17 beside the cokeburning zone and beneath the combustion zone, to the underside of the grate, air openings 27 in the passage 17 communicating with the combustion zone laterally through the coke-burning zone. Means for closing the air inlet to the coking zone comprise a damper 42, the air inlet 41 being formed in a plate 51 held in position by a ridge on the outer surface of the charging door 12. Means such as a damper 19 having a bleed hole 29 are also provided for reducing the air inlet to the passage 17.
Patent GB-1241147-A (GB)
Title: Unsaturated polyester compositions
IPC: C08F2/50
Filed: 1969-12-30
Abstract: 1,241,147. Unsaturated polyester compositions. SOC. ITALIANA RESINE S.p.A. 30 Dec., 1969 [31 Dec., 1968], No. 63355/69. Heading C3P. Stable, photochemically hardenable unsaturated polyester resin compositions contain (a) an unsaturated polyester resin consisting of (i) styrene monomer and (ii) a polyester which is a condensation product of a polycarboxylic acid and. a polyhydroxyl alcohol, the acid or the alcohol being non-aromatically unsaturated, and (b) a stabilizing system consisting of an alkyl phosphite or aryl phosphite, a quaternary ammonium salt and (c) a compound decomposing under the action of light, of the general formula R-SO 2 X, in which X stands for halogen and R represents an alkyl, phenyl, aralkyl, naphthyl or alkyl-naphthyl radical. In the examples the compositions contained polyesters derived from propylene glycol, fumaric acid and phthalic anhydride, triphenyl phosphite, styrene, hydroquinone, trimethyl benzyl-ammonium chloride and 2-naphthyl sulphonyl chloride and films are hardened by irradiation with ultraviolet light.
Patent GB-2003965-A (GB)
Title: Foundation with liquid tight joints and method of forming the same
IPC: E02D5/18
Filed: 1978-09-08
Abstract: A method of constructing an in- ground liquid barrier in separate sections with liquid tight joints between the sections, and the barrier formed thereby are described. A barrier area is excavated and the sections 22, 24 formed therein, preferrably by initially filling the excavation with a liquid sealing slurry and sequentially displacing portions of the slurry with a liquid impermeable barrier material to form barrier sections which are mutually abutting along leaky interfaces. A bore 36 is drilled between adjacent sections in a direction generally transverse to the direction of leakage, and filled with a liquid sealing material to seal the joint. The sealing material preferrably comprises a dry, hydro-expandable bentonite composition which expands to form a slurry sealant by permitting liquid to seep between the barrier sections into the bore and contact the bentonite therein. <IMAGE>
Patent GB-2012977-A (GB)
Title: Relief printing plates produced from photopolymerisable materials
IPC: B29C63/00
Filed: 1978-12-28
Abstract: A relief printing plate is produced by image-wise exposing and developing a material comprising a support having thereon a photopolymerisable layer A and a photopolymerisable layer B in that order from the support, the layer B having a thickness not more than 2/3 that of layers A and B and having a Young's modulus of not less than 1.3 times that of the Young's modulus of the layer A after exposure. The plate reproduces large areas or letters better than plates produced from a single photopolymerisable layer.
Patent GB-2018526-A (GB)
Title: Insulator rings
IPC: H01H50/14
Filed: 1979-02-05
Abstract: An insulator ring 2 to prevent the short circuiting of the conductors attached to an electromagnetic contactor with the cylindrical body 3 thereof comprises a recess to accommodate an end of said body and notched lugs 8 to accommodate tags on the ends of said conductors which hold the ring on said end, the ring ensuring the tags do not contact the body. <IMAGE>
Patent GB-2042245-A (GB)
Title: Electric storage batteries
IPC: H01M50/528
Filed: 1979-03-07
Abstract: A winding jig for a spirally wound electric storage battery consists of a shaft (2) split in the middle (38) and provided with two axially adjustable collars (16). The shaft and the collars are provided with three equiangularly spaced slots (22, 24). The collars carry arcuate retaining plates (28) arranged so as to be capable of masking the entire space between the two collars leaving only narrow slits corresponding to the slots (22 and 24). The jig is used by feeding the assembly of electrodes and separators into the slots (22) with the plates (28) removed. The assembly is then wound up, the plates (28) are put back in place and a circular saw (44) is used to cut the wound assembly into three segments between the plates (28) and into the slots (22). The jig is then split at its mid portion and one half withdrawn from the cut wound assembly. A compartmented box is then slid onto the segments, the other half of the jig removed and the cut assembly pushed home into the box. <IMAGE>
Patent GB-2016753-A (GB)
Title: Data Processing System
IPC: G06F9/38
Filed: 1979-03-15
Abstract: In a data processing system which predecodes and queues a plurality of instructions for sequential presentation to an execution unit, and which includes a plurality of instruction-addressable general registers (56) which can be utilized for temporary data storage or source of address modifying information, an interlock mechanism is provided to detect when an instruction is being decoded which requires use of a general register for address modification, but which general register has not yet received new data by execution of an instruction awaiting execution in the queue (42) of instructions. Two fields (61, 62) are associated with each instruction awaiting execution in the instruction queue. They identify one or more of the general registers to be loaded with data by execution of the instruction. Compare logic (80-83) associated with each register of the instruction queue detects when the general registers identified by the fields in the instruction queue include the general register to be used as address modification data by the instruction presently being decoded. Decoding and address formulation are prevented when the compare exists for any instruction awaiting execution in the queue. <IMAGE>
Patent GB-2018774-A (GB)
Title: Process of preparation of 2- mercaptobenzthiazole
IPC: C08K5/47
Filed: 1979-04-12
Abstract: A process for the preparation of 2- mercaptobenzthiazole which comprises reacting nitrobenzene or nitrosobenzene, hydrogen sulphide and carbon disulphide, the molar ratio of nitrobenzene or nitrosobenzene: hydrogen sulphide being from 1:3 to 1:6 or from 1:1.5 to 1:4, the molar ratio of nitrobenzene or nitrosobenzene: carbon disulphide being from 1:1 to 1:3 and the final reaction temperature being from 200 to 300 DEG C, is disclosed. Embodiments are disclosed wherein (a) nitrobenzene and H25 are reacted in a specified molar ratio under elevated temperature and pressure and the resulting reaction mixture is reacted with CS2 in a specified molar ratio at 200 to 300 DEG C; (b) nitrosobenzene, H25 and C52 are reacted in a specified molar ratio at 200 to 300 DEG C; and (c) nitrosobenzene and H25 are reacted in a specified molar ratio at 20 to 100 DEG C and the resulting reaction mixture is reacted with C52 in a specified molar ratio at 200 to 300 DEG C.
Patent GB-2021947-A (GB)
Title: Hypochlorite-Containing Antiseptic and Disinfectant
IPC: A01N59/00
Filed: 1979-05-21
Abstract: A composition suitable for dilution with water comprises at least one water-soluble i.e. an alkali metal or alkaline earth metal hypochlorite, at least one water-soluble hydroxide and at least one water-soluble citrate; said ingredients being proportioned to form in an aqueous medium a pH above 11.5 and an active chlorine content of at least 200 ppm. The composition, which preferably also contains at least one water-soluble pyrosulfate, finds utility as an antiseptic or disinfectant and, in particular, is useful in the treatment of burns and wounds.
Patent GB-2022150-A (GB)
Title: Improvements in and relating to the detection of flaws, breakages discontinuities and the like
IPC: D04B35/18
Filed: 1979-06-25
Abstract: A detector device eg for detecting faulty needles and closed needle latches in a knitting machine, consisting of a non-electrically-conductive feeler which is normally resiliently urged into contact with the upper parts of the needle hooks, and an electrically-conductive probe which normally passes through the needle hook openings if the latches are open as relative movement of the needles past the detector takes place. A closed latch will contact the probe and the feeler will be permitted to move laterally if a needle hook is broken or bent to complete an electrical circuit which signals a needle fault. In a rotary cylinder knitting machine a controller stops the machine when the faulty needle reaches a particular position. The machine may stop at a first position and then crawl to the final stopping position to prevent over- run. In a flat bed machine the detector may be mounted on the cam carrier and be associated with a battery-powered ultrasonic transmitter for transmitting the fault signal to a stationary receiver on the machine frame. <IMAGE>
Patent GB-2028619-A (GB)
Title: Apparatus for damping vibrations in an arc furnace
IPC: H05B7/10
Filed: 1979-08-17
Abstract: A vibration damping apparatus for damping the vibrations of the electrodes in an arc furnace comprises at least one damping device associated with at least one of the electrodes and/or its support system. In the embodiment shown, a housing 3 is coupled to an electrode support arm 1 and contains an inertial mass 4 and fluid 6 communicating between the opposed ends of mass 4 through a passage 7 having a constriction 8. Alternatively the electrode vibrations may be sensed and used to control a vibrator to produce vibrations which cancel the electrode vibrations. <IMAGE>
Patent GB-2040282-A (GB)
Title: Process for producing biphenyl derivatives
IPC: C07C29/143
Filed: 1979-08-17
Abstract: A process for producing a halo- biphenyl derivative represented by the following formula (I) which comprises dehydrogenating a cyclohexylhalobenzene represented by the following formula (II) under such conditions that substantially no dehalogenation occurs. Formula (I) and (II) are as follows:   <IMAGE> wherein X represents a halogen atom, and each of R<1> and R<2> independently represents a group represented by the formula   <IMAGE> wherein A represents a carboxyl or an alkoxycarbonyl group and R represents a hydrogen atom or a lower alkyl group; an alkylcarbonyl; alkenyl; alkynyl; alkyl; aryl; arylcarbonyl; hydroxyalkyl; cyanoalkyl or cyanoalkenyl group.
Patent GB-2066581-A (GB)
Title: Motor control
IPC: H05K7/20
Filed: 1979-09-12
Abstract: A motor control having a metal back plate (1), a protective cover (not shown) secured to the back plate, a variable inductance (6) secured to the back plate and having a control switch (10) for selecting coil tappings 19-21 and provided with terminals (18, 23) for the power source and motor, has a metal shield (26) secured to the back plate (1) and arranged over the control switch (10) within the protective cover so as to be in heat conducting relationship with the variable inductance (6). The metal shield lowers the temperature of the variable inductance and shields the control switch in case of fire. <IMAGE>
Patent GB-2060028-A (GB)
Title: Improvements relating to struts
IPC: E21D11/28
Filed: 1979-09-29
Abstract: A strut is formed from either L. T. or U. sectional bar, at each end of such bar there is a forked arrangement between two of the bar limbs into which is located a flange of an I section support, the two protruding limbs of the bar are bent at right angles to each other, while holes in said bent portions allow adjoining bars to be connected together longitudinally whether the roadway supports have holes provided in the web or not. <IMAGE>
Patent GB-2035350-A (GB)
Title: Biocompatible surgical devices
IPC: A61L15/24
Filed: 1979-10-31
Abstract: The devices comprise at least at their surface a hydrophilic thermoplastic graft copolymer which is an ethylenic carboxylic acid, preferably selected from acrylic acid and alkyl substituted acrylic acids, graft copolymerised onto a base polymer. The base polymer is preferably selected from polyolefins, especially polyethylene and polypropylene, partially and fully fluorinated polyolefins, especially polytetrafluoroethylene, and polyetherurethanes. Graft copolymerisation of the monomers to the base polymer is initiated preferably by ionising radiations, especially gamma radiation. The reaction takes place preferably in an aqueous solution and in the presence of a homopolymerisation inhibitor such as ferrous sulphate or potassium ferricyanide. The base polymer may be graft copolymerised throughout its entire thickness or to a known depth in one or more of its surfaces. The former material exhibits high elastic properties whilst the the latter exhibits a low elasticity and high moduli. The devices may be in the form of prostheses, especially vascular prostheses, or wound dressings, especially in the treatment of skin loss and open wounds, and may also be used in extra-corporeal, body fluid treating devices, such as heart-lung and kidney machines.
Patent GB-2040022-A (GB)
Title: Non-return valve
IPC: F16K15/10
Filed: 1980-01-14
Abstract: The valve includes a fixed plate (2) through which passages (20) are formed and a moving plate (3) through ed which passages (30) are formed. The moving plate is disposed downstream from the fixed plate and is connected thereto by means (6) which allow it to move a short distance between an open position in which the ends of the passages of each of the plates are uncovered to allow the liquid to pass from the upstream side to the downstream side, and a closed position with the plates in contact with each other and in which the passages of each plate are stopped by the solid parts of the other preventing the liquid from flowing from the downstream side to the upstream side. In the open position, the flow axis of each fixed plate passage (20) coincides substantially with the flow axis of the associated passage (30) of the moving plate (3), thereby directing and centring the streams of liquid flowing through the fixed plate into the passages in the moving plate. <IMAGE>