baber/WOPTO huggingface dataset:
Patent GB-670064-A (GB)
Title: Improvements in or relating to the manufacture of pipes, conduits, electric cable sheaths and the like
IPC: H01B13/26
Filed: 1949-12-12
Abstract: 670,064. Cables. PIRELLI-GENERAL CABLE WORKS, Ltd., and ARMAN, A. N. Oct. 6, 1950 [Dec. 12, 1949], No. 31803/49. Class 36. [Also in Group XXVIII] A sheath for an electric cable consists of an aluminium strip folded to form a tube 4 which is welded along the joint 6 and covered with a flexible layer 5 of natural or synthetic rubber. The aluminium strip may either be bent longitudinally or helically wound into tubular form, and the edges may be united either by cold pressure welding or electric arc welding. The rubber covering 5 is preferably applied by extrusion, or by lapping a strip of rubber around the tube 4. The cable may be completed by a serving of impregnated cloth or tape and an outer armouring layer.
Patent GB-826638-A (GB)
Title: Process for the production of high molecular weight polyethylenes
IPC: F02B3/06
Filed: 1955-11-07
Abstract: Ethylene is polymerized using as catalyst the reaction product of an organic compound of a Group I, II or III metal and of formula RnMeX, wherein R is a hydrocarbon radical, X is a hydrocarbon radical or halogen, Me is the metal and n is an integer which is less by one than the valency of Me, with an ionic compound of manganese or a Group VIII metal, e.g. a halide.  In examples, ethylene is added during the polymerization and the catalyst is formed in situ in the organic solvent used as a polymerization medium.  Subsequent to polymerization catalyst may be destroyed and polymer purified with materials such as methanol, hydrochloric acid, tetrahydronaphthalene, acetone and wetting agent. The products are linear and crystalline and may be stretched and formed into films and fibres. Fractionation with ether may be effected. Specifications 799,392, 799,823, 801,031 and 826,639, [Group III], are referred to.
Patent GB-428546-A (GB)
Title: Improvements relating to coated fabrics
IPC: C23C4/18
Filed: 1933-11-16
Abstract: 428,546. Coating fabrics with metals. MARSDEN, L., The Shrubbery, Sir Harry's Road, Edgbaston, Birmingham. Nov. 16, 1933, No. 31945. [Class 82 (ii)] [See also Group VIII] A coated fabric particularly for use in the construction of motor-vehicleroofs &c., comprises a woven cotton or like fabric coated or one or both sides with a sprayed metal coating and with a layer of paint, varnish, or lacquer either superimposed on one or both of the metal coatings or on the uncoated side of the fabric. Fig. 1 shows a woven fabric a, which is preferably provided with a smooth outer surface by interweaving or combining two different fabrics, with a sprayed metal coating b on which is superposed a layer of paint &c. c. A paint coating may be applied to the uncoated surface of the fabric a instead of or in addition to the coating c. Fig. 2 shows a fabric a having a sprayed metal coating b and a superposed paint layer c on each side. The material may be passed through rolls to produce a patterned effect and the sprayed metal surface may be burnished.
Patent GB-483395-A (GB)
Title: Improvements in and relating to the recording and reproduction of sound
IPC: G03B31/00
Filed: 1936-11-21
Abstract: 483,395. Optical sound recording and reproducing apparatus. KOLB, O. K., and PRATT, A. S. Nov. 21, 1936, No. 31946. [Class 40 (ii)] In recording sound with amplitude control, an additional record track is made of an independent super-audible or sub-audible frequency the amplitude of which is subjected to the same control as the recorded sound, and this additional track to control volume in reproduction. In one recording arrangement, the output of an amplifier connected to a microphone and the output of an oscillator are mixed and controlled by a single volume control and fed to a recording amplifier, which makes a combined record. Reproduction from such a record is by means of a single photo - cell 8, connected to two transformers 9, 10. The transformer 9 transmits sound current to an amplifier K ; and the other transformer 10 has a secondary tuned to the oscillator frequency and feeds that frequency to an amplifier L containing a rectifier 11, the output of which serves to control the amplification of the amplifier K. In a modified reproducing arrangement separate filters are provided between a transformer in the photo-cell circuit and the two amplifiers K, L. In another recording arrangement, the current from the microphone amplifier and the current from the oscillator are not mixed but subjected to the same amount of amplitude control before being recorded in separate tracks. Reproduction from a record with two such tracks, is by means of two photo-cells connected to two separate amplifiers, the amplifier of the control frequency having a rectifier, the output of which controls the amplification of the sound amplifier.
Patent GB-533894-A (GB)
Title: Improvements in modulated-carrier signal-translating systems
IPC: H04L25/04
Filed: 1939-12-12
Abstract: 533,894. Valve circuits for wireless reception. HAZELTINE CORPORATION. Dec. 12, 1939, No. 32062. Convention date, Jan. 10. [Class 40 (v)] In a system for receiving a single side-band signal, non-linear signal translating means are introduced between the intermediate frequency amplifier and the detector for deriving from the available side-band modulation frequency components corresponding to the missing side band which is then reintroduced into the signal. The intermediate frequency oscillations are fed to a band-pass selector comprising a double-tuned transformer 22 whose response characteristic is shown at R1 where C is the carrier frequency and O the mean frequency of the selector. The output from 22 passes to a pair of suitably biased diodes 23, 24 oppositely connected in parallel. The response characteristic of this combination is shown at R2 and it is here that the signal is distorted to introduce the missing side band. The output then passes to a wide pass filter of the dead end type comprising two double-tuned transformers 27, 28 and a terminating resistance 29. The response characteristic is shown at R3, the mean frequency O being the same as that of the carrier. The output with the reintroduced side band then passes to the detector and subsequent stages. A modification is described in which the circuit interposed between the I.F. amplifier and the detector comprises two channels one of which amplifies the existing side band while the other includes a pair of parallel connected diodes for deriving the second side band, the output from both circuits being combined and fed to the detector.
Patent GB-339423-A (GB)
Title: Improved apparatus for cooling metals in a closed container
IPC: C21D1/84
Filed: 1929-10-22
Abstract: 339,423. Siemens - - Schuckertwerke Akt.-Ges. Oct. 22, 1928, [Convention date]. Cooling discharged materials.-In a brightannealing process in which the heated metal is cooled in a separate container the pressure of the inert gas in the container 1 is controlled by connecting it to a bell gas holder 6, the bell 7 of which has a sufficient range to allow for the initial expansion of the gas and its subsequent contraction on cooling. The container 1 has a liquid-sealed cover and is in communication with the sealing space by openings 9 above the liquid level. Connection between the container 1, the gas holder 6 and atmosphere is controlled by a 3-way cock 8. A single gas-holder 6 may serve several cooling containers.
Patent GB-937272-A (GB)
Title: Production of phenols
IPC: C07C37/86
Filed: 1961-09-07
Abstract: A phenol is produced by halogenating a benzene (i.e. an aromatic hydrocarbon having one or two benzene rings with up to three alkyl substituents) to produce a monohalobenzene, hydrolyzing the monohalobenzene with steam to produce a vaporous mixture comprising monohalobenzene, a phenol, water and a hydrogen halide, passing the vaporous hydrolysis effluent to a quenching zone, supplying a benzene to the quenching zone in an amount of at least that required for the formation of a benzene-monohalobenzene-water-hydrogen halide azotropic mixture, maintaining a vapourphase mixture comprising the benzene, the monohalobenzene, water and substantially all of the hydrogen halide and a liquid phase comprising a phenol in the quenching zone, and removing vapours from the quenching zone.  The halogenation, preferably chlorination, takes place between 45 DEG and 150 DEG C. in the presence of a metal catalyst.  The vaporous halogenation effluent is preferably neutralized with aqueous caustic solution, for example in a two stage neutralizer, and a benzenemonohalobenzene mixture is separated as a liquid while a benzene-water-inorganic-inerts mixture is separated as a vapour, benzene is separated from the inerts, e.g. by adsorption of the benzene in a solvent such as a solution of the monohalobenzene, or by chilling to condense benzene from vaporous inerts.  The benzene-monohalobenze mixture from the neutralizer and steam is fed to a hydrolysis zone under a pressure of between 10 p.s.i.a. and 300 p.s.i.g. in the presence of a catalyst, preferably a neutral phosphate, e.g. tricalcium phosphate, alumina or silica gel.  The hydrolysis effluent is quenched with benzene or the neutralization effluent containing benzene and halobenzene.  The quench column is operated at a pressure of from 10 p.s.i.a. to 300 p.s.i.g. at a temperature between 170 DEG F. and 380 DEG F., the inorganic halide-water and benzene are removed as vapour the bottoms liquid is fractionated to remove halobenzene leaving a crude phenol which is further purified by distillation.  The process may be used to obtain phenol from benzene, or cresol from toluene.
Patent GB-457075-A (GB)
Title: Improvements in or relating to propelling devices for watercraft and aircraft
IPC: B64C33/02
Filed: 1935-11-20
Abstract: 457,075. Propelling aircraft. BLICHARSKI, F., 2, Schikanedergasse, Vienna. Nov. 20, 1935, No. 32199. [Class 4] Vibrating wings 140 are mounted on arms 14 carried by oppositely-actuated parallel shafts 2 which are each coupled to pistons or sliding frames 3, 3<1> reciprocated by a common drive. As shown, cranks 4, 4<1> driven through bevel gearing 12, slide in guides 40, 40<1> in the frames and are connected to the shafts 2 by arms 5, 5<1>. To facilitate steering, worm gearing 8, 10 is provided ; alternatively, the wings are driven through a differential gear in order that their plane of operation may be varied. When more than one pair of wings is employed the phase angles of the cranks for each pair may be displaced as required.
Patent GB-498347-A (GB)
Title: Improvements in electric discharge tubes for amplifying or generating electric oscillations
IPC: H01J21/14
Filed: 1937-11-23
Abstract: 498,347. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 23, 1937, No. 32265. Convention date, Nov. 26, 1936. [Class 39 (i)] An electric discharge tube for amplifying or generating electric oscillations is provided with a cylindrical tubular cathode 2, an anode 4 and two or more other electrodes, one of which consists of only a few rods 3 or plates which are arranged parallel with the axis of the cathode and by means of which electrons from the cathode are united into beams, means being provided near the extremities of the electrode system to control the shape of the cross-section of the electron beams in a direction parallel with the axis of the cathode. The control means may comprise rods 6 arranged at the ends of the system and connected to the cathode or to the control rods 3, the connection being made, if desired, within the tube. Plates or discs 5 may also be used in addition to or instead of the rods 6. An apertured intercepting electrode is arranged in front of the anode 4 or the anode may be apertured and arranged in front of a plate electrode. Grids may be provided between these electrodes or. between the control electrodes 3 and the intercepting electrode, one of which may serve as a screening grid. The anode may be coated with fluorescent material so that the form of the spot may be observed. A straight or exponential characteristic may be obtained by using intercepting electrodes having gauze covered apertures of predetermined shape, and a secondary-emitting electrode may be provided on the far side of a gauze anode, which may then be apertured to serve also as the intercepting electrode. The cathode tube 2 may be directly or indirectly heated and of circular, rectangular or elliptical crosssection.
Patent GB-830907-A (GB)
Title: Improvements in and relating to turbines
Inventor: BARNES JOHN ANTHONY
IPC: F01D5/14
Filed: 1956-10-23
Abstract: 830,907. Turbine blades. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Oct. 23, 1957 [Oct. 23, l956], No. 32283/56. Class 110 (3). A turbine includes a plurality of stator blades arranged downstream of rotor blades, each of the stator blades having a trailing portion 5 and a pivotable leading portion 4 which together form a blade with a substantially continuous surface, control means being provided whereby the leading portions of the blades may be pivoted so as to reduce the swirl component of velocity at the trailing edge of the trailing portion in relation to operating conditions of the turbine. The leading portion 4 of the blade shown is pivotally mounted about an axis 15 substantially coincident with the trailing edge of the leading portion. Two passages 6, 7 having openings 8, 9 respectively at the leading edge 10 are provided in the leading portion 4, the pressures in the passages being communicated through pipes 11, 12 to servo-control 13 which operates a motor 14 which moves the leading portion pivotally about axis 15. The invention is particularly applicable to gas turbine propeller engines and aircraft gasturbine engines of the by-pass type. The blades may be mounted in the exhaust diffuser downstream of the rotor blades. Specification 774,501 is referred to.
Patent GB-1168631-A (GB)
Title: An Improved Wind-Screen Washing Device.
Inventor: WALKER BRIAN ALLISON
IPC: B60S1/48
Filed: 1965-07-28
Abstract: 1,168,631. Wind screen washers. HUMBER Ltd. 28 Oct., 1966 [28 July, 1965], No. 32317/65. Heading A4F. A windscreen washing device comprises in combination a washing fluid pump actuated by a member and an electrical switch which is connected to a windscreen wiper motor and which is operable by movement of the member. The member is in the form of a plunger which when successively depressed by small amounts from its rest position causes the switch to be alternately switched to on and off positions and which when depressed by large amounts causes the fluid pump to be actuated and the switch to move to or remain in the on position. The fluid pump which may comprise a bellows of resilient material is connected through valves to a bottle for washing fluid and to nozzles directed onto the windscreen.
Patent GB-1291838-A (GB)
Title: Thermoplastic polyamide compositions
Inventor: CHANGANI PUSHPKUMAR DEWANMAL
IPC: C08L77/00
Filed: 1969-06-26
Abstract: 1291838 Polyamide compositions MONSANTO CHEMICALS Ltd 14 May 1970 [26 June 1969] 32323/69 Heading C3R An extruded composition comprises an extrusion-grade thermoplastic polyamide together with a polypropylene resin of melt index 0À2 to 4 in an amount between 1 and 4À5 wt. per cent such that under the action of heat and pressure the composition flows at a lower temperature or pressure than does the polyamide alone. It is stated that extrusion grade polyamides have a minimum relative viscosity (0À1 g./c.c. in 90% formic acid at 25‹ C.) of 80, usually 100 to 400 and preferably 200 to 350. Isotactic polypropylene of density between 0À89 and 0À91 g./c.c. is preferred. Specified polyamides are nylons 6, 66, 11 and 610. The composition may also include pigments, dyes, antioxidants, antistatic agents, fillers and reinforcing agents. The polypropylene may be mixed with the polyamide by various conventional methods prior to extrusion or in the extruder barrel; addition prior to removal from the polymerization autoclave facilitates removal.
Patent GB-1144371-A (GB)
Title: Means for compensating errors in input reference levels
IPC: G01N30/86
Filed: 1966-07-19
Abstract: 1,144,371. Measuring voltage. FOXBORO CO. July 19, 1966 [July 27, 1965], No.32465/66. Heading G1U. [Also in Division H3] An input reference level compensating circuit includes an amplifier having input and output terminals with negative feedback therebetween, means for storing the level at the output at a first predetermined time and means for supplying the level at the storing means to the input terminal at a second predetermined operating time for compensating the reference level at the input terminal. Amplifier 10 Fig. 1 is provided with a resistance network in its output, from which negative feedback is applied to the input via switch K21 and resistor R26. When switches K21, 29 are reversed, capacitor C30 is charged up from the output via potentiometer R27, the basic D. C. reference level being determined by means of potentiometer R17. During this interval the amplifier gain is increased due to feedback resistor R26 being returned to the tapping point on potentiometer R22, 23. When switches K21, 29 are returned to the position shown, the potential on capacitor C30 is applied to the amplifier input via resistor R32, which bears the same relationship to resistor R26 as does resistor R22 to R23. In a simplified embodiment the resistance network at the amplifier output is omitted, capacitor C48, Fig. 2 being alternately switched between the amplifier output and the input via resistor R49, which is equal to the feedback resistor R45.
Patent GB-867957-A (GB)
Title: Improvements in or relating to oscillators for non-sinusoidal oscillations
IPC: H03K4/52
Filed: 1959-09-24
Abstract: 867,957. Transistor oscillator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 24, 1959 [Sept. 27, 1958], No. 32521/59. Class 40(6) A very low frequency oscillator comprises two transistors 1, 2 having their base and collector electrodes cross-coupled, one coupling comprising a differentiating network 3, 11 and the other an integrating network, the latter including a capacitor 5 connected in "Miller" fashion between collector and base of transistor 2. In the circuit described a rectifier 8 prevents unwanted charging of the differentiating capacitor 3. Triangular and square output waveforms are available at the collector of transistor 2 and the base of transistor I respectively.
Patent GB-1079663-A (GB)
Title: Improvements in and relating to apparatus for pumping objects in a liquid medium to higher levels
IPC: B65G53/30
Filed: 1964-08-13
Abstract: 1,079,663. Unloading vessels. J. H. TODD & SONS Ltd. Aug. 13, 1964 [Aug. 16, 1963], No. 32953/64. Heading B8E. [Also in Division F1] Apparatus for raising objects in a liquid from a holder to a higher level, e.g. fish in water from the hold of a boat, comprises a container having a suction pipe and a discharge pipe, each provided with a non-return valve, and a power-operated pump connected to the container by pipes containing valve means operable to cause the pump alternately to draw liquid out of the container and thereby objects and liquid medium from the holder through the suction pipe into the container and force liquid into the container to force objects and liquid out of the container through the discharge pipe. In the embodiment illustrated fish and water are drawn from the hold of a boat 127 into a container 130 by withdrawing water from the container by means of a pump 150 and delivering the water to a container 147. Fish are delivered to a shoot 142 through a discharge pipe 137, 140 by pumping water to the container 130 from container 147. The flow to and from the containers is controlled by valves 154 and 164. Make-up water may be drawn into the system through a pipe 160. The water passing to shoot 142 is returned to container 147 through pipe 144. A second pump 175 may be provided to supply water to the boat 127 from container 147 or to draw water into the system through a pipe 184 to supply the boat or container 147. In another embodiment, Fig. 5 (not shown), a valve (199) is provided in the pump outlet to the container (130) for directing water to the boat (127). In a further embodiment, Figs. 1 and 2 (not shown), a centrifugal pump (68) is connected via a fourway valve (75) to a pair of containers (12 and 13) to alternately supply water to and withdraw water from the containers thereby drawing fish and water from the hold (44) of a boat through a suction pipe (37, 42) alternately into container (12 or 13) and delivering fish and water alternately from container (13 or 12) to a discharge pipe (55) and a shoot (60). The centrifugal pump (68) is driven by a motor (69) which also drives a further pump (106) which returns water to the hold (44) of the boat from a receptacle (65) in which water leaving the outlet end (56) of the discharge pipe (55) is collected. The further pump (106) may also be connected to a pipe (112) to draw water into the system.
Patent GB-193546-A (GB)
Title: Improvements in the treatment of ores
IPC: C22B11/08
Filed: 1921-12-05
Abstract: 193,546. Marks, E. C. R., (Merrill Co.). Dec. 5, 1921. Treating ores prior bo lixiviation; cyaniding.- Ores which contain constituents which interfere with the action of solvents or leaching agents such as cyanide, are treated with an oleagineous substance unaffected by the solvent, with a view to destroying the action of the deleterious constituents. The ore is preferably ground in the presence of the oleagineous substance, which may be crude oil or coal tar, and the ore thus treated without the removal of the deleterious constituents, is thereafter, with or without an intermediate drying, subjected to treatment with the solvent. In a modified method, the ore is ground with water only and the oil &c. is mixed with the pulp subsequently.
Patent GB-481216-A (GB)
Title: Plate clutches, particularly for motor-vehicles
IPC: F16D13/71
Filed: 1936-11-28
Abstract: 481,216. Friction clutches. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. Nov. 28, 1936, No. 32634. [Class 80 (ii)] In a spring-engaged plate clutch, the presser plate 14 has secured thereto radially-extending pins 20 which project through slots 21 in the cover plate 13 secured to the driving flywheel 12, and which are connected through tension links 24 to the outer ends of actuating levers 26, each of which latter is pivoted on a semi-cylindrical pin 27, the flat surface 30 of which abuts against the plate 13 and is formed with a rib 28 guided in a' slot 29 in the plate 13. The levers enter slots 31 which form continuations of the slots 21. The parts are retained in position by springs 32, the bridging portion 33 of each of which passes round the associated lever while the ends are anchored in holes 35 in the plate 13. Alternatively, the slot 29 may be replaced by a groove in which the rib 28 engages, the middle portion of the latter being deeper so as to engage in the slot 31 ; or each pin 27 may be cylindrical at its middle portion, to engage in the slot 31, while the flats on the semi-cylindrical end portions engage in grooves in the plate 13.