baber/WOPTO huggingface dataset:
Patent GB-1325610-A (GB)
Title: One-can polysulphide compositions
IPC: C08L81/00
Filed: 1970-12-16
Abstract: 1325610 Polysulphide compositions SEKISUI KAGAKU KOGYO KK 16 Dec 1970 [17 Dec 1969] 59769/70 Heading C3R A one-can moisture free polysulphide polymer composition which is protected by a container from exposure to atmospheric moistures comprises (a) a liquid polysulphide polymer, preferably 100 pbw, (b) a curing agent preferably 5-20 pbw, (c) an organosilicon compound, preferably 0À5-10 pbw, having at least one Si-C bond and at least one RCOO- group bonded to silicon, wherein R is a hydrogen atom or a C 1-5  alkyl group, the organosilicon compound being capable of releasing an acid, RCOOH, upon exposure to atmospheric moisture thereby activating the curing agent and curing the polymer. Preferred silicon compounds include methyl-, ethyl-, and vinyl-triacetoxysilane, dimethyl-diacetoxy silane and methyldiacetoxy-chlorosilane. Preferred curing agents include the peroxide of Zn, Cd, Ca, Ba, Mg and Na, or MnO 2 . The hydrolysed organosilicon compounds condense through the Si-OH groups and alkoxy groups, if present, to form condensates. Suitable polysulphides are polyalkylene polysulphides of the formula where R<SP>1</SP> is a saturated aliphatic group which may also contain oxygen or sulphur atoms. Optional additives include plasticizers such as dibutyl phthalate, chlorinated paraffins or diphenyl pentachloride, fillers or pigments such as CaCO 3 , carbon black, clay or TiO 2 . Uses.-Sealants and adhesives. Reference has been directed by the Comptroller to Specification 993,963.
Patent GB-1287480-A (GB)
Title: Carrier frequency generator
IPC: H04J1/06
Filed: 1969-12-08
Abstract: 1287480 Frequency synthesizers; multiplex systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 8 Dec 1969 19 May 1969] 59837/69 Headings H3F and H4R [Also in Divisions G4-G6] A carrier frequency generator for use in a multi-channel communication system comprises division means for generating some of the required frequencies by frequency division of a fundamental higher frequency signal and means for generating the other required frequencies by by generating and selecting harmonics of one or more of the frequencies obtained by division the generating means comprising at least one coincidence circuit arranged to receive a plurality of signals at different frequencies generated by the division means and to generate pulse signals of short duration, the said other frequencies being selected from the harmonies of the output of the or each coincidence circuit, the higher frequency signal and the frequencies generated therefrom by division being square wave signals. The various output frequencies are obtained by means of bandpass filters from a generator of rectangular waveforms, comprising a crystal oscillator driving a squaring circuit (not shown) which feeds into a network of dividers. From the frequency 1440 KHz frequencies of 96 and 16 KHz are obtained by means of dividers 1 and 1, 2, 3 respectively, while frequencies of 120 and 20 KHz are obtained by means of dividers 4-6 and 4-8 respectively. An additional divider 9 gives the frequency 60 KHz and dividers 10-12 the frequency 12 KHz. In each case, the corresponding sine waves are obtained by means of bandpass filters. The outputs from dividers 10, 11, 12 are applied to an AND gate A, the output from which comprises a train of narrow pulses at 12 KHz repetition frequency. The outputs from dividers 4, 5 and from AND gate A are applied to AND gate B to obtain a further train of narrow pulses of 12 KHz repetition frequency. The outputs from AND gate B are a divider 15 are combined in AND gate 16 to derive a train of narrow pulses of 4 KHz repetition frequency, while the outputs from AND gate A and a divider 1 3 are combined in AND gate 14 to derive a train of narrow pulses at 6 KHz repetition frequency. In each case, desired output frequencies are obtained from the higher harmonics present in the narrow pulse trains, by means of bandpass filters.
Patent GB-1341405-A (GB)
Title: Migration imaging
IPC: G03G17/10
Filed: 1970-12-21
Abstract: 1341405 Electro-photographic printing process XEROX CORP 21 Dec 1970 [ 2 Jan 1970] 60549/70 Heading G2H In an electro-photographic copying apparatus a member imaged with dyestuff or dyestuff receptive material using the particle migration electro-photographic imaging method is contacted with a sheet which either receives the image from the dyestuff or provides dyestuff to thereby colour the image on the member. The migration imaged member 10, Fig. 1A, comprises substrate 11 and softenable layer 12 containing unmigrated portions 14 of the migration layer and imagewise migrated portions 16 of the migration layer which have migrated through the bulk of layer 12 to substrate 11. Fig. 2 shows member 10 in contact with member 18 in the form of a piece of moistened dye transfer paper. The member 18 is pressed against the top surface of member 10 and removed to produce a visible dye image thereon. In Fig. 3 a dye transfer member 20 is interposed between substrate 11 and softenable layer 12 and the dye is transferred from the migrated dye particles to the dye transfer layer.
Patent GB-1333607-A (GB)
Title: Road signs and vehicle number plates and the method of manu facturing same
IPC: G09F7/16
Filed: 1970-12-22
Abstract: 1333607 Laminated signs G LEVY 22 Dec 1970 [23 Dec 1969] 60820/70 Heading B5N [Also in Divisions B6 and G5]  A number plate or road sign 1 is made by applying to a metal base plate 2 a layer 4 of adhesive paper of a contrasting colour to the base plate, covering the paper layer with a protective layer 5, e.g. of varnish, forming the relief area 3 by stamping or pressing so that the layers 4 and 5 are cut, and then removing the layers 4 and 5 from the relief area 3. The protective layer 5 may be applied after stamping and removal of layer 4 from relief area 3, so that it extends over the relief area 3 as well as over the adjacent part of the layer 4. The layer 5 may be of a transparent polymerizable varnish.
Patent GB-1263004-A (GB)
Title: Improvements in the control of the temperature of steam supplied to steam turbines
Inventor: WILSON CHARLES DAVID
IPC: F01K3/00
Filed: 1969-12-22
Abstract: 1,263,004. Automatic temperature control systems. ALLIS-CHALMERS MFG. CO. Dec.22, 1969, No.62223/69. Heading G3R. In a system for controlling the temperature of steam supplied to a turbine the turbine inlet steam temperature is measured and cooling water is injected into the steam supply to maintain the temperature within a range, the set point being manually set by an operator a determined value above or below a measured turbine metal temperature dependent on whether the turbine is to be heated or cooled. The set point may be progressively varied by a timing device having a number of selectable time/temperature schedules. A temperature sensitive device TT3 e.g. a thermocouple measures turbine metal temperature which is displayed on an indicator (not shown). For heating (cooling) an operator sets a control 406 at a point say 100‹ F. above (below) the observed figure. A steam temperature measuring sensor TT5 through an amplifier incorporating positional feedback causes rotation of a cam 401 and temperature variation of say 10‹ F. from the set point causes a switch LS7 or LS8 to energize a motor moving a water supply valve 300 in the appropriate direction to vary the admission of water to an attemperating valve 62. In a modification, Fig. 4 (not shown) water is mixed with steam in a by-pass chamber before the mixture is injected into the main steam flow. The steam pressure drop across this valve is maintained constant e.g. at a value 100 p.s.i.g. Œ 25 p. s.i. by a differential pressure bellows controlling the valve actuating motor. If the steam temperature drops to say 50‹ F. below set point, switch LS10 causes closure of valve 300 and opening of a water dump valve 450 which by-passes the water to a condenser 458. A non-return valve 309 prevents outflow of steam when valve 460 is opened. At 50‹ F above set point another switch LS9 closes to operate a warning lamp. The steam which is superheated, both before and after admission of water, should preferably not drop below 50‹ F. above saturation temperature and appropriate temperature and pressure indicators for various parts of the system are grouped on a control panel (not shown). The timing device comprises a motor having number of cam operated switched providing a number of mark-space ratios which control the current to a motor 410 driving a ring gear 404. A switch (CS9) Fig. 11 (not shown) selects the rate of temperature variation which may be varied in steps from say 50‹ F. to 150‹ F. per hour. Protective controls are provided to prevent excessive cooling of steam in cases of turbine tripout, boiler tripout, a sudden reduction in turbine load or other forseeable malfunction. A controllable valve 21 passes surplus water to drain.
Patent GB-2024282-A (GB)
Title: Gates
IPC: E06B11/02
Filed: 1978-06-27
Abstract: A gate is assembled from a plurality of prefabricated components by attaching intermediate members 14, 20, 26, 28 to a top and a bottom rail 10, 12. The outer intermediate members 26, 28 may be attached to the top and bottom members in such a way that the transverse spacing therebetween may be adjusted such that a gate can be adapted to fit gateways of varying widths. <IMAGE>
Patent GB-2025188-A (GB)
Title: Method of recording incoming telephone messages in an automatic telephone call answering machine and an automatic telephone call answering machine for carrying out the method
IPC: H04M1/65
Filed: 1978-07-10
Abstract: An automatic telephone call answering machine has two tape transport mechanisms, i.e. a first one for a magnetic tape for recording incoming messages, and a second one for a magnetic tape bearing a call answering announcement and a marking signal for initiating recording of an incoming message and interrupting operation of the second transport mechanism. A speech detector is provided for terminating recording and reactivating the second mechanism only after a delay in which no incoming speech signals appear, to allow a terminating announcement and a further marking signal on the tape on said second transport mechanism to be played. The further marking signal causes the tape on the first transport mechanism to rewind until speech signals are detected by a playback head engaging the tape on the first mechanism, whereafter the machine is returned to its standby condition. The arrangement reduces the amount of blank tape left between successive recorded messages. <IMAGE>
Patent GB-2001537-A (GB)
Title: Control circuit for fluid flow system
IPC: A62B9/00
Filed: 1978-07-18
Abstract: A control circuit for a fluid flow system includes an on/off valve 2, and non-return valves 34 and 36; these valves being pressure operable. When the pressure from a main supply is less than a preselected value the valves 2 and 34 are opened to allow fluid from a standby supply 18 to operate a warning device 12 and to pass to a receiver. The control circuit is particularly suitable for an air breathing system in which the receiver can be a breathing face mask. <IMAGE>
Patent GB-2002874-A (GB)
Title: Pistons
IPC: F16J9/20
Filed: 1978-08-11
Abstract: A piston and piston ring assembly for use in a reciprocating engine alleviates cylinder wear by partially balancing outward fluid pressure on the piston ring. The piston ring assembly comprises an outwardly biassed piston ring 4 accommodated in the piston groove 3, the bottom side of which groove sloping upwards in radial outward direction. Instead of the sloping groove bottom or in combination therewith, the piston ring assembly may be equipped with an inwardly biassed sealing ring 5 located at the pressure side of the piston ring. <IMAGE>
Patent GB-2001697-A (GB)
Title: Fastening device
IPC: F16G11/00
Filed: 1978-08-16
Abstract: The invention relates to fastening devices for ropes and the like and in particular to fasteners for road haulage vehicles. The stud 1 has two or more annular grooves 3 around its periphery to receive and grip the rope coils 4. The wall between the grooves is formed with a gap or channel 6 enabling the rope to be passed from one groove to another. The grooves are adapted to squeeze the rope laterally as it is entered and so cause an initial grip which is fully developed by means of the coils. The free end of the rope 12 is nipped under the working leg II for greater security. <IMAGE>
Patent GB-2003578-A (GB)
Title: Marine fender with limited bending deformation
IPC: F16F1/42
Filed: 1978-08-30
Abstract: A marine fender (1) comprising an elastomeric element 2, 11 extending from its berthing face in a direction along which there acts a load due to a vessel mooring is provided with means for restricting to a given value an elastic bending deformation applied thereto in a direction perpendicular to the load acting direction. Bending of the element takes place about a groove 17, 8 until the element contacts a resilient or rigid abutment, 11, 2'. <IMAGE>
Patent GB-2029926-A (GB)
Title: Converting rotary into oscillating motion
IPC: A61C17/34
Filed: 1978-09-14
Abstract: A drive for producing rotary oscillations, eg of a tooth brush, comprises a motor (17) and reduction gearing (18, 19) of which the output gear (19) has its axis parallel to the axis of a rocker shaft (13) performing the rotary oscillations and is provided with an eccentric pin (22) drivingly connected to a radially directed arm (13a) of the rocker shaft (13) by a pivoted link (23). <IMAGE>
Patent GB-2008241-A (GB)
Title: A Liquid Cooling System for an Internal Combustion Engine
IPC: F01P7/16
Filed: 1978-10-23
Abstract: A closed-circuit liquid cooling system for an internal combustion engine (1) comprises a pump (2), a thermostatic multi-way valve (4) having an inlet port connectable to the engine and three outlet ports, connected respectively to a return duct (5) connected to the suction side of the pump, to a duct (6) leading to a heat exchanger (7) and to one end of a heat-exchanger by-pass (10) the other end of which is connected to another return duct extending from the heat exchanger to the pump. The other return duct may pass through an oil cooler (8) and/or an intercooler (9). The valve (4) has a pivotable valve member (15) arranged to direct the cooling liquid through the one return duct (5) and the by-pass (10), or through the heat exchanger, or through the one return duct and the heat exchanger and the by-pass. The position of the valve member (15) is determined by the temperature of the cooling liquid as sensed by a sensor (12). <IMAGE>
Patent GB-2042085-A (GB)
Title: Power plant
IPC: F02B3/06
Filed: 1979-02-06
Abstract: Blower fan 1 is energised by electric mains supply or mobile diesel generator. Airflow strikes vanes on perimeter of wheel causing it to rotate, and to rotate the generators thus creating electrical output.   With sufficient wheel momentum, blower fan 1 is disconnected, and blower fan 2 energised by current from one of the generators, leaving the output from the other generator free for other use. The R.P.M. of the generators is increased by gearing resulting from small generator wheels impinging on the much larger serrated steel circle. The main wheel is anchored to the central shaft by roller bearings, reducing friction. The effect of leverage is achieved by siting the point at which the generator wheels impinge on the steel circle over third of the distance between the centre of the wheel and the circumference. This ratio, and gearing ratios may be varied in the light of experience gained in prototype manufacture. <IMAGE>
Patent GB-2042813-A (GB)
Title: Manufacture of combined armature and commutator
IPC: H01R39/02
Filed: 1979-02-20
Abstract: A combined armature and commutator blank (10) comprises a laminated core (14) mounted on and insulated from a shaft (12) by a moulding (16) which extends along the shaft beneath the site of the commutator segments (24) and is provided with axial slots for accepting and retaining inserts (24) which can be bent (22) to facilitate winding and which constitute segments (24) of the commutator. After the segments have been slid into position the armature is wound and the ends of the windings are connected to the bent-up ends (22) of the tin-plated copper segments. <IMAGE>
Patent GB-2017762-A (GB)
Title: Improving the surface cleanliness of a cold-rolled metal product
IPC: C23G1/14
Filed: 1979-03-08
Abstract: A cold-rolled metal, e.g. steel, product is degreased in an alkaline solution containing sodium silicate and a sulphur-bearing substance such as thiourea. The degreased product is rinsed, coiled into closely packed turns, and subjected to heat treatment during which sulphur retaining by the product reacts with carbon migrating to the surface of the product to form a volatile compound. The treated product is suitable for coating with a metal.
Patent GB-2019079-A (GB)
Title: Aluminium additive for cells using divalent silver oxide electrodes
IPC: H01M4/06
Filed: 1979-03-29
Abstract: There is disclosed a silver oxide alkaline cell employing a positive electrode comprising a major portion of divalent silver oxide wherein a minor amount of an aluminium additive is incorporated into the positive electrode and/or the electrolyte to improve the chemical stability of the divalent silver oxide in contact with the alkaline electrolyte.
Patent GB-2049561-A (GB)
Title: A drawing instrument
IPC: B43L13/00
Filed: 1979-05-15
Abstract: A drawing instrument consists of a set scale determined by viewing a quadrant cornerwise as a triangle divided across equally from apex to base and from one side in matching proportional division so that an equal sided line when drawn at the appropriate intersection shows the base of another triangle at an angle to the quadrant which sector can be used to form a whole measurement or used to divide whole measurements into equal or varying portions. A plurality of intermediate measurements may be added to assist in drawing circles on a plane surface or in three dimensions.
Patent GB-2022326-A (GB)
Title: Electric motor with speed sensor
IPC: H02K11/00
Filed: 1979-05-31
Abstract: A motor has a cylindrical rotor 1 of permanent magnet material. The inner surface of the rotor presents a plurality of poles 1A which magnetically coact with stator windings on a radially inner core 4 to produce a motor driving force. The outer cylindrical surface of the rotor has a plurality of poles 1B greater in number than those on the inner surface. The poles 1B induce a speed signal in a sensor coil 5 mounted on a part 6A, 6B of the stator which encircles the rotor 1. <IMAGE>
Patent GB-2051543-A (GB)
Title: Horse's hood
IPC: A01K13/00
Filed: 1979-06-04
Abstract: A horse's hood comprises a plastics moulding which is adapted to be wrapped around the horse's head and has eyeholes, there being projections around the eyeholes and in places where the horse is particularly susceptible to damage. The preferred form of the hood is a one- piece polyurethane foam moulding. <IMAGE>
Patent GB-2028832-A (GB)
Title: Aqueous coating color compositions
IPC: C09D7/00
Filed: 1979-06-13
Abstract: An aqueous coating color composition comprises pigment, dispersant and binder, 5 to 95% by weight of the pigment being uniform cubic particles of calcium carbonate 0.1 to 1.0  mu m in average size. This composition is applied to a coating base to produce a pigment-coated paper or board having good printability, whiteness, gloss and opacity.
Patent GB-2033946-A (GB)
Title: Erecting Offshore Structures
IPC: E02B17/02
Filed: 1979-06-29
Abstract: The disclosure relates to a method and apparatus for erecting an offshore structure comprising a substructure 1 erected at an offshore site on a submerged surface 2. The upper end of the substructure has side portions 6 and 7 between which there is a concave arch like force transmitting arrangement 8 defining a vessel passageway 5. The substructure receives an integrated deck 12 including downwardly extending side portions 15, 16 and a downwardly concave lateral force transmitting generally arch-like underside 17. The arch-like structures on the underside of the deck and the upper end of the substructure provide significant strengthening of the offshore structure coupled with reductions in weight and utilisation of structural materials. <IMAGE>
Patent GB-2028741-A (GB)
Title: Servo steering device
IPC: F15B9/16
Filed: 1979-08-23
Abstract: A servo steering device which is insensitive to variations in fluid supply pressure has a steering input member 4, and an output member 3 connected to a piston 2 in a cylinder 1. The steering member 4 has two spaced stop faces 6, each of which cooperates with a face of an element 7 mounted in the piston 2. Hydraulic fluid under pressure is passed to the centre of element 7, and passes out through one or the other, or both of the gaps between the stop faces and corresponding element faces. Fluid outlet conduits 30, 31 communicate with the gaps and lead to pressure pins 25 for actuating a control valve 22 which controls admission of pressure fluid to the cylinder 1. Movement of the input member 4 results in displacement of the stop faces 6 relative to the faces of the element 7 to create unequal pressures in the conduits 30, 31 with consequent displacement of the control valve 22. In another embodiment a rotary input member is coupled to the piston by a screw-thread, and the stop faces on the input member co-operate with respective faces of a fixed reaction member. <IMAGE>
Patent GB-2029806-A (GB)
Title: Web Splicing Apparatus
IPC: B65H19/18
Filed: 1979-08-30
Abstract: This apparatus allows tape, preferably adhesive tape, to be unwound from one reel (5) and its expiring end joined to the leading end of tape drawn of a replacement reel (25) without stopping the machine. Tape 7 from the first reel 5 passes over two rollers 9, 10. When this reel is nearly empty, tape from a second reel 25 is unwound via rollers 29, 30 onto a launching roller 31. When the speed of the two tapes at these two pairs of rollers is equal, the tapes are pressed together by units 12, 13, 32 and 33. If the tape is not adhesive tape, a glue may be required. Cutters 14, 35 then operate to isolate the new train of tape from the expiring reel and from the launching roller. <IMAGE>
Patent GB-2032317-A (GB)
Title: Electrode for electrical resistance welding
IPC: B23K11/30
Filed: 1979-09-17
Abstract: An electrode comprises a sintered body (6) of metallic material of high electrical conductivity in which there is embedded a plurality of elongated members (11) (e.g. of wire, rod or strip form) of a highly heat resistant metallic material of higher melting point than the body material. The body may be subsequently deformed to a desired form. <IMAGE>
Patent GB-2061768-A (GB)
Title: Spray guns
IPC: B05B7/12
Filed: 1979-10-22
Abstract: A spray gun is controlled by supplying air to inlet 16 to move piston 10 backwards to open air valve 12, 13; needle valve 28, carried by the piston 10 and controlling the spray material, at first remains biased closed (by spring 24) but on further movement of the piston 10 is opened. Thus at start of spraying, atomised air is supplied to the head before the needle valve 28 opens and persists at the end of spraying after the needle valve 28 closes. This is achieved because of the lost motion connection between the forked end 25 of the operating piston 10 and the needle collar 30. Preferably, no rubber compounds are used for the various spray gun seals so that the spray gun can be safely cleaned with paint solvents if required. <IMAGE>