baber/WOPTO huggingface dataset:
Patent GB-966703-A (GB)
Title: Impact media for mechanical plating
IPC: C23C24/04
Filed: 1960-12-09
Abstract: An impact medium for use in mechanical plating comprises a mixture of spheroidal and non-spheroidal vitreous particles, a major part, at least, of the surface area of the non-spheroidal particles consisting of plane surfaces.  The non-spheroidal particles are preferably polygonal in cross-section and their plane surfaces and their edges smooth to the touch.  The latter particles may comprise between 5 and 80% of one volume of the mixture and may be of a size between 0.03 and 0.75 inch.  The spheroidal particles may be of a size between 0.006 and 0.35 inch.ALSO:An impact medium for use in mechanical plating comprises a mixture of spheroidal and non-spheroidal vitreous particles, a major part, at least, of the surface area of the non-spheroidal particles consisting of plane surfaces. The non-spheroidal particles are preferably polygonal in cross-section and their plane surfaces and their edges smooth to the touch.  The latter particles may comprise between 5 and 80% of the volume of the mixture and may be of a size between 0.03 and 0.75 inch.  The spheroidal particles may be of a size between 0.006 and 0.35 inch. Copper plated ferrous articles may be plated with zinc, cadmium, tin, silver, gold, brass, bronze, or alloys of these by tumbling the articles in a barrel with a mixture of the impact medium, the required coating metal powder and water.
Patent GB-1279733-A (GB)
Title: Coin testing device
Inventor: HINTERSTOCKER ADOLF
IPC: G07D5/08
Filed: 1969-08-27
Abstract: 1279733 Coin testing devices A HINTERSTOCKER 27 Aug 1969 [28 Aug 1968] 42593/69 Heading G4V A coin testing device compares an inserted coin 30 with a standard coin 50 whereby the inserted coin passes between a coaxial primary coil 18 and secondary coil 20, the standard coin lying coaxially between the primary coil and a second coaxial secondary coil 32, the difference in outputs from the secondary coils being fed to means whereby the coin 30 passes to an "accept" shoot 10a or to a "reject" shoot 10b. The coin 30 is fed down a shoot 10 past a mechanical slug rejector 14, to remove wrongly sized coins, and past the coils 18, 20. When the coin 30 approaches the "test" position, it trips a lever, constituting a sensing device 16, which causes a magnet to operate a reed-contact switch to actuate a relay of a switching device 26 to energize various testing circuits. An oscillator 22, thus energized, passes an alternating current of varying frequency and/or amplitude in the range of 30 to 100 kHz, to coil 18; the output currents from the secondary coils 20, 32 are compared, passed through an amplifier 34 and a rectifier 36 to a Schmitt-trigger 38, which produces an output pulse if the comparison exceeds a predetermined level. A power amplifier 42 energizes an electromagnet 44 during the test period, and if the Schmitt-trigger 38 produces a pulse, an inverter amplifier and holding circuit 40 deactivates the amplifier 42 and thus de-energizes the electromagnet 44 causing a solenoid 46 forming or controlling a gate to prohibit the coin 30 from entering the "accept" shoot 10a. If there is no signal from the Schmitt-trigger 38, the amplifier 42 is activated thus keeping the electromagnet energized, and the gate allows the coin 30 to pass to the "accept" shoot 10a.
Patent GB-1204714-A (GB)
Title: Record player
IPC: G11B19/12
Filed: 1967-09-19
Abstract: 1,204,714. Gramophones. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Sept., 1967 [22 Sept., 1966], No. 42622/67. Heading G5R. In a record-player including a turntable (42), an electric motor (24), a tone arm (7) pivoting about a vertical spindle, and a control disc (17) driven by the motor (24) to control the movements of the tone arm (7) in accordance with the diameter of the record to be played, this diameter being determined by means of a feeler (43) integral with the tone arm (7), the turntable starts rotating only after the diameter of the record has been determined and when the feeler is no longer in contact with the record. This is effected by virtue of the control disc's provision of a peripheral cam track (29) which controls the movements of an idler wheel (35) for transmitting the motor drive to the turntable.
Patent GB-1522115-A (GB)
Title: Process for preparing expanded phenolic resol resins
IPC: C08L61/10
Filed: 1976-10-19
Abstract: 1522115 Expanded resols NOBEL HOECHST CHIMIE 19 Oct 1976 [20 Oct 1975] 43351/76 Heading C3C Expanded phenolic resol resins of density 30-400 kg./m.<3> are made from a mixture of a resol, a blowing agent, an acid hardener and 0À5-5% by wt. (based on the phenolic resin) of a surfactant which is a novolac resin containing an average at least 5 C8-12 alkylphenol units and bearing at least 10 alkylene oxide units per alkylphenol unit, the alkylene oxide consisting of ethylene oxide and propylene oxide. In the examples resols are mixed with a novolac with nonylphenol or octylphenol units oxyalkylated with ethylene oxide and propylene oxide, phenolsulphonic and phosphonic acids, and either trichlorofluoromethane with optionally trifluorotrichloroethane, or calcium carbonate; the mixing may be continuous using a machine comprising measuring pumps and a mixing head, and the mixtures may be injected into heated moulds and allowed to foam and harden to produce blocks or panels.
Patent GB-987078-A (GB)
IPC: E02F3/64
Filed: 1963-11-04
Abstract: 987,078. Earth-moving equipment. CATERPILLAR TRACTOR CO. Nov. 4, 1963 [Dec. 26, 1962], No. 43395/63. Heading E1F. Positioned in a fluid passage to normally prevent flow through the passage between the head and rod ends of the or each jack 16 for raising and lowering the bowl of an earthmoving, bowl type scraper is a quick drop valve 86 allowing of rapid venting of the piston end of the cylinder when the bowl is lowered and in series with this valve is a check valve 65 for preventing accidental dropping of the bowl if the hydraulic fluid supply pipes to the jack are damaged. Specification 959,872 is referred to.
Patent GB-922460-A (GB)
Title: Fixation of pigments to fibrous materials and two-dimensional structures
IPC: C08F8/12
Filed: 1960-12-19
Abstract: A composition for dyeing and printing fabrics is described which consists of (a) a pigment and as a binding agent (b) a partially or completely saponified graft polymer of a vinyl ester on a polyalkylene glycol and (c) a partially or completely etherified aminoplastprecondensate and as a hardening agent (d) a potentially acid compound with (e) an optional oil in water emulsion.  As pigments all the known organic or inorganic pigments may be used. The polymer is preferably a graft copolymer of vinyl acetate or polyethylene glycol saponified by any known means to a vinyl alcohol content of 40-80% by weight of the macromolecule.  The aminoplast-precondensate can be a mono-, di- or tri-methylol-urea or a mono-, di-, penta- or hexamethylol-melamine, partially or completely etherified with methanol, ethanol, propanol, butanol, ethylene glycol or butanediol-1,4 or mixtures of these alcohols. Additionally there can be used polymers or copolymers of butadiene, acrylonitrile, styrene, acrylic esters, vinyl esters, acrylamide, vinyl chloride or vinylidene chloride.  The potentially acid compounds (d) can be ammonium nitrate, oxalate, acetate, fluoride, thiocyanate, chloride, diammonium phosphate or tartaric acid diethyl ester. Fixation can be carried out by a neutral or an acid steaming process for a period of 5-10 minutes at temperatures of 90 DEG -120 DEG C. or for 1/2 -10 minutes at temperatures up to 200 DEG C. The ratio of the components is 1 part by weight of graft polymer to 0,5 to 1,8 parts by weight of etherified aminoplast precondensate, and the hardening agent is present from 0,5 to 1,5% by weight of total printing paste or padding liquor.  Specifications 828,052, 851,976, 922,458 and 922,459 are referred to.ALSO:A printing paste for use on fabrics and fibres comprises (a) a pigment, (b) a partially or completely saponified graft polymer of a vinyl ester or polyalkylene glycol, (c) a partially or completely etherified aminoplast precondensate and (d) a potentially acid compound.  The Specification lists many pigments and potentially acid compounds.  The paste is made in water and as optional ingredients there may be used oil-in-water emulsions and other synthetic polymers such as a 65:35 copolymer of butyl acrylate and vinyl chloride.  Fixation of the print is carried out by heating the treated material to a temperature of 90 DEG -200 DEG C. Specifications 828,052, 851,976, 922,458 and 922,459 are referred to.
Patent GB-1049476-A (GB)
Title: Voice-frequency key-dialling method
IPC: H04Q1/453
Filed: 1964-10-30
Abstract: 1,049,476. Voice-frequency signalling in telephone exchange systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 30, 1964 [Nov. 5, 1963], No. 44311/64. Heading H4K. In a telephone exchange system using V.F. dialling signals, additional V.F. signals may be sent during a conversation, such as for recall or transfer, and to ensure speech is unable to simulate these signals they are superimposed upon a D.C. signal, produced by a change in line current, which is also transmitted by the subscriber's keying action but commencing in advance of the V.F. signal. Associated with each exchange link is a wide-band V.F. receiver which is enabled by a D.C. responsive device upon the receipt of the D.C. signal. The receiver then generates an output appropriate to the received V.F. code signal. If a transfer signal is sent it may be succeeded by dialling signals so a dial pulse receiver is seized, this being prevented during the call setting by a signal from the register, which also disables the D.C. responsive device and wide-band V.F. receiver when in use.
Patent GB-1128924-A (GB)
Title: Process for atomising a liquid, solution, emulsion, suspension or a particulate solid
IPC: B05B7/04
Filed: 1965-10-19
Abstract: 1,128,924. Spray producers. DYNAMIT NOBEL A.G. 19 Oct., 1965 [19 Oct., 1964], No. 44328/65. Heading B2F. A process for atomising a liquid, solution, emulsion, suspension, or a particulate solid comprises introducing the substance to be atomised into a continuous propellant jet of expanding gas produced by a rocket motor having a pressure or combustion chamber and, at the output end thereof, a nozzle. The substance may be added to the fuel of the rocket motor or introduced into the propellant gas jet in the region of or behind the nozzle. The substance may be drawn into the jet by the reduced pressure therein whilst the motor is in operation, supplied to the jet from a source disposed above the rocket motor or supplied to the jet by an outside pressure source. Atomisation may be carried out in the presence of a liquid which cools the propellant jet and is partially completely vapourised by the heat of the jet. The coolant liquid may be saturated with gas, e.g. CO,. The rocket motor may be adapted to operate with a solid and/or liquid fuel, superheated steam, a fuel heated by an atomic reactor, a plasma burner or an electric burner. A rocket motor 1, Fig. I, comprising a combustion chamber 2 and a nozzle 3 has, disposed at its outlet end, an atomising or spraying chamber 4 forming an annular gap 6. A mixing chamber 7 is housed in the atomising chamber which mixing chamber may contain baffle surfaces screens or diaphragms to assist, and discharge nozzle 8 defines its outlet end. Injection nozzles 9 are formed in axial alignment in the wall of the mixing chamber and are connected to pipes 11 by annular ducts 10. An end section 12 of each pipe 11 extends into a container 13. Container A houses coolant liquid, B, the substance to be atomised and C, a gas for saturating the coolant liquid. During operation of the motor, air is drawn in at 6 and pressure in the combustion chamber is communicated to containers 13 through pipes 15 forcing the contents of containers 13 into chamber 7. The contents of A, B and C may be substances which on mixing produce an aerosol of a solution, emulsion or suspension. Alternatively, a solution, emulsion, or suspension to be atomised could be prepared in advance and this same substance stored in all 3 containers or in a single chamber. In a modification (Fig. 3, not shown) the end 5 of the atomising chamber engages over the end of the rocket motor nozzle 3, the gap 6 being tightly closed at the motor end (at 5a). The nozzle 3 and the discharge nozzle of the atomising chamber (16) are tightly closed off from combustion chamber 2 by discs (18a and 18b), the space between the discs being fitted with the substance to be atomised. The pressure of the jet ruptures the discs and atomises the substance. Further substance may be supplied through a side pipe (11). In a further form (Fig. 4, not shown) the atomising chamber comprises a widened mixing chamber (7) narrowing conically towards the motor and towards the discharge end.
Patent GB-1111160-A (GB)
Title: Improvements in or relating to rotary couplings
Inventor: SHAW LESLIE THOMAS
IPC: F16D3/68
Filed: 1964-10-31
Abstract: 1,111,160. Steering vehicles. BIRFIELD ENGINEERING Ltd. 20 Oct., 1965 [31 Oct., 1964], No. 44497/64. Heading B7H. [Also in Division F2] A telescopic resilient coupling for a motorvehicle power-steering column comprises one or two radially projecting pins 16 in a shaft 1 embedded in two rubber or polyurethane blocks 18 accommodated with axial end play in slots 15 of an outer sleeve 7. The pins 16 have flattened ends embedded in the blocks and the shaft 1 is separated from the sleeve 7 by a polyurethane sleeve 13. A Hooke's joint is arranged at each end of the coupling, and on installation in a vehicle, the joints are angled so that, in the event of a collision, the column collapses harm lessly to Z-form.
Patent GB-1536259-A (GB)
Title: Electrophotographic copier
IPC: G03G15/02
Filed: 1977-10-26
Abstract: 1536259 Copying machine INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1977 [15 Dec 1976] 44635/77 Addition to 1496473 Heading B6C The machine is a modification of the two cycle kind of electrophotographic copier of Specification 1,496,473 in which, instead of a single scorotron, the pre-clean/final charge device comprises a two bay scorotron, and the means for controlling the charge comprises switching means connected to control the potential of a grid common to both bays, and including a first direct current source connected in common to the electrode systems of the transfer/pre-charge device and the first bay of the pre-clean/final charge device and a second direct current source, of polarity opposite to that of the first source, connected to the electrode system of the second bay of the pre-clean/final charge device.
Patent GB-1446571-A (GB)
Title: Air conditioning system for automotive vehicles
IPC: B60H1/32
Filed: 1973-09-26
Abstract: 1446571 Ejectors; ventilating vehicles A OPHIR and J WEINBERG 26 Sept 1973 [3 Oct 1972] 45157/73 Headings F4H and F4V A motor vehicle air conditioning system in the form of a closed ejector type refrigeration system is powered by utilizing the waste heat from either the engine water-cooling system or the engine exhaust gases. The refrigeration system comprises a generator 54 connected indirectly with the vehicle engine cooling or exhaust gas system 52 for heating a refrigerant gas, preferably a halogenated hydrocarbon, passing through the generator; an ejector 62 through which the gas passes under pressure from the generator to a condenser 64; an evaporator 70 with an associated expansion valve 68 in communication with the low pressure side of the ejector 62; and a direct return line including a pump 72 from the condenser 64 to the generator 54. The evaporator is located in the passenger department of the motor vehicle. A by-pass valve 74 is provided to redirect the flow of refrigerant gas through the evaporator, thereby by-passing the ejector and condenser, in order to heat the passenger department. The system also includes a droplet separator 58.
Patent GB-1318709-A (GB)
Title: Current amplifier circuits
IPC: H03F3/20
Filed: 1970-09-23
Abstract: 1318709 Transistor amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 Sept 1970 [26 Sept 1969] 45339/70 Heading H3T A current amplifier comprises an amplifying transistor T 1  whose emitter is connected via a diode D 1  and the emitter collector path of a second transistor T 2  to a voltage supply terminal, the base of T 1  also being connected to the same terminal via a diode D 2 , the emitter collector path of a third transistor T 3  and a current determining element S e.g. a current source of a resistor, the base electrodes of T 2 , T 3  being connected to the collector, emitter electrodes respectively of T 3 , T 2 . In operation, an input applied to the base of a further transistor T 0  produces an output at the emitter of T 1  across a load z. The closed loop formed by the base emitter paths of T 1 , T 3  and diodes D 1 , D 2  control the quiescent current flow in the two series arms. When the output voltage increases, the base emitter current of T 1  increases and the current through D 1  is reduced correspondingly to that the sum of the two currents remains a constant. The maximum current available at the output depends on the product of the constant current I and the current amplification factor of T 2 . The transistor T 2  may be replaced by a quasi PNP transistor (Fig. 3, not shown) having a larger gain factor. By adjusting the emitter areas of T 1 , T 3  and the cathode areas of diodes D 1 , D 2 , the quiescent current through T 1 , T 2  may be made different from I. An alternative embodiment (Fig. 3, not shown) having two additional transistors brought into conduction at increased current levels may be used to obtain a larger output current.
Patent GB-1350194-A (GB)
Title: Shaft coupling and element therefor
IPC: F16D3/78
Filed: 1972-10-02
Abstract: 1350194 Flexible shaft couplings RELIANCE ELECTRIC CO 2 Oct 1972 [4 Nov 1971] 45397/72 Heading F2U A flexible coupling for connecting two coaxial shafts 12, 14 has flanges 16, 18 for each shaft, a plurality of spaced pins 30 secured in each of said flanges and projecting toward the other flange, and a flexible element 40 of elastomeric material disposed between the flanges and having holes 44 for receiving and gripping the pins of each of the two flanges. The flexible element, may be of polyurethane, and may have bosses 46 around each of the holes with an intervening area of lesser thickness for improved flexibility between the holes. Spacer protrusions 50, 52 may be provided on opposite sides of the element for positioning the element between the two flanges. The free ends of the pins 30 may be received in recesses 36 in the other flange to limit twist under overload.
Patent GB-1192125-A (GB)
Title: Improvements in or relating to Dish-Washing Machines
Inventor: HARGREAVES CYRIL
IPC: A47L15/42
Filed: 1968-09-25
Abstract: 1,192,125. Dishwashing machine. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 Sept., 1968, No. 45510/68. Heading A4F. In a dishwashing machine having a reversible electric motor 12 driving a pump 5 which, when running in one direction, forces water through a spray arm or reaction turbine 9 for washing and, when running in the other direction, discharges the water to drain 11, a first pressurestat P1 closes an electrically operated inlet valve 3 when the water reaches a predetermined level, a second pressurestat P2 switches off and operates a warning signal, such as a neon light, if the water rises above a predetermined level and a third pressurestat P3 operates, when the water reaches a second predetermined level, to energize the motor 12 in the reverse direction through a circuit including the second pressurestat P2. The machine incorporates a known programme device.
Patent GB-1091787-A (GB)
Title: Method for the production of injection molding tools for the manufacture of plate-shaped blanks with fine-profiled surface,particularly cylinder lens screens,from thermo-plastics material
IPC: B29C45/26
Filed: 1964-11-09
Abstract: 1,091,787. Making moulds &c. CHROMOWORKS Ltd. Nov. 9, 1964 [Nov. 7, 1963], No. 45557/64. Heading B3A. [Also in Division B5] In a method of making injection moulding tools for the manufacture, from thermoplastic material, of flat blanks with fine-profiled surface, the tool blank is subjected both on its working surface and on its opposite surface to embossing forces which are substantially equal in magnitude and opposite in direction. The tool blank is embossed on one surface by means of a profiled disc wheel with a trailing copying wheel in adjacent tracks and that surface is then covered with a removable protective layer while the second surface is similarly embossed.
Patent GB-950691-A (GB)
Title: Production of allyl chloride
IPC: C07C17/10
Filed: 1961-12-21
Abstract: A process for the production of allyl chloride comprises reacting propylene with chlorine at an elevated temperature, quenching the reactor effluent and removing condensed tarry materials therefrom, fractionating the residual effluent to remove unreacted propylene and by product hydrogen chloride, followed by distilling off light ends and then distilling allyl chloride as overhead product, leaving a heavy ends residue. The reactor effluent may be precooled prior to quenching. The heavy ends residue may be used as a reflux in the fractionating and/or quenching steps. The effluent from the quenching step may be refrigerated. Specification 950,692 is referred
Patent GB-1304130-A (GB)
IPC: H03J3/14
Filed: 1971-10-06
Abstract: 1304130 FM receivers MAGNAVOX CO 6 Oct 1971 [7 Jan 1971] 46497/71 Headings H3A and H3R  A multiple band heterodyne receiver in which there are provided channels 17, 29 selecting at least two distinct intermediate frequency bands comprises a frequency detector 31 responsive to more than one frequency band which is selectively coupled to the intermediate frequency channels 17, 29. A receiver for f.m. or a.m. signals has separate r.f., mixer, local oscillator, and i.f. stages 11, 13, 15, 17 and 23, 27, 25, 29 for the a.m. and f.m. signals respectively, both channels being coupled to (a) the frequency detector 31 to provide an a.f.c. signal and a tuning indicator signal, the latter being fed to meter 39, and to (b) an a.g.c. circuit 33. Both the a.f.c. and a.g.c. circuits 33 and 37 are also coupled to a search tune control 35. The frequency detector, Fig. 3, may be a quadrature type, with tuned circuits 45, 47 which resonate at the two i.f. frequencies.
Patent GB-1525019-A (GB)
Title: Servo-power-assisted hydraulic brake-actuating arrangemen
IPC: B60T13/14
Filed: 1975-11-12
Abstract: 1525019 Brake boosters ALFRED TEVES GmbH 12 Nov 1975 [12 Nov 1974] 46769/75 Heading F2F A servo - power - assisted hydraulic brake arrangement includes a valve including a spool 6, for controlling a servo pressure proportional to an actuating force, master cylinder pistons 1, 2 each included in a fluid circuit, the second piston 2 being so arranged that the pressure introduced into a chamber 11 adjacent the second piston 2 and controlled by the valve is applied to one end of piston 2. The chamber 11 is closed by an ancillary piston 7 having at one end a tappet 9 which in its end position rests against a stop and the first piston 1 being actuatable via a balance arm 3 pivotally supported by piston 1 and the tappet 9 and on which a force transmitting member 8, movable by the servo pressure can act, in the event of pressure failure by means of direct operation of the drivers pedal 43. If accumulator pressure is available and the pedal 43 is depressed to displace spool 6 pressure fluid introduced into an annular chamber 14 from the accumulator 22 passes via a line 27 to chamber 11 to act on piston 2 and apply the rear brakes, the pressure also being applied to a housing 4 to apply via member 8 arm 3 and member 19, pressure to piston 1 to apply the front brakes. If servo pressure fails pressure from pedal 43 is applied directly to member 8 by mechanical connection and hence to the assembly of parts 3, 7, 19 &c. to move the pistons 1, 2. In a modification (Fig. 2, not shown) a control valve of an antiskid system is inserted in line 27.