baber/WOPTO huggingface dataset:
Patent GB-530256-A (GB)
Title: Improvements in or relating to systems for eliminating static interference in radio receiving systems
IPC: H04B1/12
Filed: 1939-06-02
Abstract: 530,256. Wireless receiving systems. ZUCCARELLO, W. E. June 2, 1939, No. 16313. Convention date, Nov. 15, 1938. [Class 40 (v)] In an interference preventing system of the type which comprises the steps of amplifying combined signal-modulated carrier and static impulses in one receiving circuit, while amplifying only static impulses of a greater strength than the carrier in a second receiving circuit, and balancing the output currents of one circuit against the output currents of the other circuit to cause the static to be eliminated, the second circuit is caused to respond only to static impulses of greater amplitude than the carrier by the provision in the second circuit of a feedback circuit for audio-frequency energy. An aerial 1 feeds two similar parallel circuits A, D comprising H.F. amplifiers 4, 4b, mixers 22, 22b, I.F. amplifiers 50, 50b and detectors 61, 61 b. The output from the detectors pass respectively to grids 79, 80 of a mixer 77 which feeds the audio-frequency amplifier 94. A feed-back conductor 98 is taken to each of the first three stages of circuit A while a feed-back conductor 102 is taken through a R.F. choke 103 to the corresponding points of circuit D. By this means it is arranged that circuit A responds to modulated carrier and static interference while circuit D is made to respond only to static above a certain intensity level. These two signals acting on grids 79, 80 serve to neutralize the static, since leads 70, 84 are taken from opposite ends of condenser-resistance networks 68, 68b. Thus the current fed to the input of valve 94 is free from static of greater intensity than the carrier.
Patent GB-1427103-A (GB)
Title: Copolymers of mono-olefins or of mono-olefins and unconjugated dienes with substituted lactams
IPC: C08F4/00
Filed: 1974-04-11
Abstract: 1427103 Olefin copolymers SOC NATIONALE DES PETROLES D'AQUITAINE 11 April 1974 [12 April 1973] 16340/74 Heading C3P Linear amorphous random copolymers comprising (1) 99À9 to 80 weight per cent of non- polar groups derived from at least two C 2 -C 20  monolefins and optionally at least one non- conjugated diene and (2) 0À1 to 20 weight per cent of polar groups derived from at least one unsaturated lactam of formula in which R 1  is C 2 -C 8  alkenyl, R 2  and R 3  are H or C 1 -C 8  hydrocarbyl groups free from ethylenic unsaturation, X is O or S and n is 3 to 14, may be prepared by copolymerization at - 80 to + 150 C. in an inert liquid in the presence of a catalyst comprising an organometallic compound of a metal of Groups I to III and a compound of a transition metal of Groups IV to VIII, the lactam being in the form of a complex with a Lewis acid. The copolymers may be vulcanized and have good adherence to metals. They may be used to form joints and coatings for metal parts, conveyer belts, pipes and sealing rings. Many suitable reactants are specified and examples describe the coploymerization of ethylene and propylene with ethyl aluminium dichloride complexes of (1, 2 and 4) N-vinylpyrrolidone, (3) N-vinyl caprolactam, (5) N-vinyl-7-ethyl caprolactam, (6) N-vinyl thiopyrrolidone, (7) N- vinyl thiocaprolactam or N-allyl pyrrolidone; and N-vinyl eaprolactam complexed with (11) aluminium trichloride and (12) boron trifluoride etherate; the copolymerization of (8) ethylene, butene-1 and N-vinyl pyrrolidone/ethyl aluminium dichloride complex; the copolymerization of (9) ethylene, propylene, 5-ethylidene-2- norbornene and N-vinyl caprolactam/ethyl aluminium dichloride complex and the copolymerization of (10) ethylene, propylene, dicyclopentadiene and N-vinyl pyrrolidone/ ethyl aluminium dichloride complex.
Patent GB-1514690-A (GB)
Title: Retaining ring
IPC: F16B21/18
Filed: 1977-04-20
Abstract: 1514690 Circlips JOHNSON METALL AB 20 April 1977 [22 April 1976] 16383/77 Heading F2H An elastic circlip 11 having a gap 15 is provided with a bridge member 13 which extends across the gap to hold the circlip in a stressed state at a larger or smaller diameter than its free diameter, the bridge member being removable during assembly to allow the circlip to return to its normal diameter, e.g. to engage in an annular groove in a shaft or housing. The bridge member 13 may be of wire, or a plastics or metal plate, with prongs 25, 27 to engage holes, notches, or shoulders near the ends of the circlip.
Patent GB-924167-A (GB)
Title: Improvements in and relating to wallets
IPC: A47B81/06
Filed: 1960-05-09
Abstract: 924,167. Filing papers. P. L. B. FRANCK. May 9, 1960 [Aug. 11, 1959], No. 16396/60. Classes 16 and 146 (1). A wallet for carrying flat articles, e.g. gramophone records, gramophone record cases, maps and diagrams, has a pocket 2 formed by turning over a portion of the cover 1 and stapling or otherwise fastening to the cover. In one embodiment, reference sheets 4 secured to the cover 1 carry differently coloured index tabs 7a, 7b, 7c ... that correspond to index tabs 8a, 8b, 8c ... respectively on gramophone record cases 6. The sheets 4 carry information appropriate to the corresponding record cases 6.
Patent GB-352189-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H29/04
Filed: 1930-05-29
Abstract: 352,189. Variable-speed ratchet gearing. GETRIEBEBAU GES., 2A, Frauenstrasse, and FœSSEL, H., 4, Pillnitzerstrasse, both in Dresden, Germany. May 29, 1930, No. 16608. [Class 80 (ii).] In variable-speed ratchet gearing, an adjustable crank-pin 8 turns with the driving-shaft 3 and carries loosely a ring 30, 31 in which are secured on pins 32 a series of discs 33 around which are looped the ends of flexible bands, chains, or the like 34, each secured to and wrapped around a roller 35 connected by a ratchet clutch 41 to a shaft 36 in stationary bearings in the casing 1a, all such shafts being geared to the driven shaft 45. The pin 8 is carried eccentrically in a disc 7 carried on roller bearings in a plate 4 on the shaft 3 and formed with worm teeth engaged by a worm 10 geared to a bevel pinion 13 loose on a plate 15 secured to the shaft 3. Similar sets of planet pinions 17, 20 mounted in a loose carrier 19 are secured together and gear one set with a toothed ring 16 on the pinion 13 and with an annulus 25 and the other set with teeth 21 on the driving plate 15 and with a stationary annulus 22. The annulus 25 is adjusted by a pinion 26 on a hand-wheel shaft 27 to rotate the disc 7 and adjust the pin 8 during running. The disc 7 and its adjusting members may be duplicated at the other end of the crankpin 8, by which such duplicate set is driven. The surfaces of the rollers 35 engaged by the bands 34 are so formed as to produce their substantially uniform speed of rotation. When the rollers 35 are not being driven they are returned by springs 39 in chains 38 secured to and wrapped around them in the manner shown.
Patent GB-587245-A (GB)
Title: Improvements in laminated reinforcements for partitions, panels, doors, and the like
IPC: E04C2/34
Filed: 1944-08-31
Abstract: 587,245. Compound sheet materials. PARNALL & SONS, Ltd., and GABB, A. H. Aug. 31, 1944, No. 16624. [Class 140] Two outer sheets are separated by a reinforcement which comprises a plurality of layers of paper or an absorbent fabric impregnated with a urea-formaldehyde condensation product and moulded into a shape to constitute a plurality of ridges, each ridge and intermediate valley in cross section forming a truncated V-section. The outer sheets may comprise plywood, sheet metal, millboard, rubberised fabric or asbestos board with locks, handles or other fitments incorporated. The structures may comprise panels, doors or hollow structures as described in Specification 546,397, [Group X].
Patent GB-1383984-A (GB)
Title: Perfumed cleaning compositions
IPC: C11D3/02
Filed: 1972-04-11
Abstract: 1383984 Perfumed cleaning compositions COLGATE-PALMOLIVE CO 11 April 1972 [12 April 1971] 16624/72 Heading C5D A cleaning composition comprises a citrus perfume and also boric oxide, boric acid or a mixture thereof as a fragrance stabilizer. An automatic dishwasher detergent composition comprises (A) 0À5 to 5% by wt. of a low-foaming nonionic surfactant, (B) 40 to 90% of an inorganic builder, e.g. sodium tripolyphosphate and sodium silicate, (c) 0À5 to 5% of an organic or inorganic chlorine- and/or bromine-liberating bleach, (D) 0À01 to 15% wt. of said boron compound or compounds, (E) 0À05 to 1À0% of citrus perfume, (F) additives such as sodium acid aluminium phosphate or other overglaze protector (e.g. alkali metal aluminate, zincate or berylliate), propylene glycol, sodium chloride and magnesium silicate. The lemon perfume and fragrance stabilizer may also be incorporated into 85/15 tallow-coco sodium soap and into bottle cleaning compositions containing sodium hydroxide.
Patent GB-1458374-A (GB)
Title: 2-pyrazolin-5-one derivatives as colour couplers for magenta
IPC: C07D231/52
Filed: 1973-04-06
Abstract: 1458374 2-Pyrazolin-5-one derivatives AGFAGEVAERT 20 March 1974 [6 April 1973] 16626/73 Heading C2C [Also in Division G2] Novel magenta-forming colour couplers are 2-pyrazolin-5-one derivatives comprising in the 3-position an anilino gruup substituted by an optionally substituted aryloxysulphonyl group, preferably compounds of formula wherein R 1  represents alkyl, substituted alkyl, aryl, substituted aryl or a heterocycle, X represents hydrogen or a substituent that exhibits 2-equivalent character on colour development (e.g. halogen, alkylthio, arylthio, heterocyclic thio, alkoxy, aryloxy, acyloxy, sulpho or arylazo) and Ar represents a phenyl or substituted phenyl group carrying an aryloxysulphonyl group or substituted aryloxysulphonyl group. The couplers are obtained by reaction of alkyl or aryl hydrazines with the corresponding aryloxysulphonylaniline and ethyl-#,#,#-trimethoxypropionate, Aryloxysulphonyl anilines used as starting materials are themselves obtained (1) by reaction of a nitrobenzene sulphochloride with a phenol or naphthol in pyridine (or a sodium salt thereof in benzene) followed by catalytic hydrogenation or (2) by reaction of an acetylaminobenzene sulphochloride with a phenol or naphthol in pyridine followed by deacetylation.
Patent GB-203093-A (GB)
Title: Improvements in or connected with electric converting machinery or apparatus
IPC: H02K47/08
Filed: 1922-06-16
Abstract: 203,093. Electric Control, Ltd., and Ellefsen, O. June 16, 1922. Systems for conversion employing rotary converters.-In the process of starting a rotary converter from the alternating current side, direct current is supplied to the converter at its direct-current side for the purpose of ensuring correct polarity. The direct current may be obtained from the direct-current bus-bars where these are constantly energized, or from an auxiliary converter or battery. In the arrangement shown, the converter is started by means of an auxiliary motor 17, and the commutator 3 is supplied with current, during the starting process, from the direct-current bus-bars 1, 2 through a resistance 19. After correct polarity is established the resistance 19 is cut out and the converter is connected directly to the bus-bars 1, 2 by the operation, automatic or otherwise, of switches 18, 20. The application of the invention to an automatic sub-station, in which a number of relays and contactors for starting a converter and connecting it to a direct-current net-work are controlled by a motor-driven master controller, is also described.
Patent GB-503377-A (GB)
Title: Improvements in arrangements for determining the time of transit of electrical signals in four-pole networks
IPC: H04B3/462
Filed: 1938-06-03
Abstract: 503,377. Telephone and like transmission measurements; measuring time constants. SIEMENS & HALSKE AKT.- GES. June 3, 1938, No. 16708. Convention date, June 5, 1937. [Class 37] An arrangement for determining the time of transit of signals'between the input and output terminals of a four-pole network such as a length of communication line comprises (1) means for applying to the input terminals two sinusoidal oscillations of equal amplitude and closely adjacent frequency, (2) means for measuring or regulating to a given value the amplitude of the corresponding oscillations appearing at the output terminals, (3) means for modulating the measured or regulated oscillations with a sinusoidal carrier oscillation of such frequency and phase that two of the side-bandsformed coincide in frequency, and (4) means for measuring the combined amplitude of the coincident side-bands. Generators 1, 2 produce oscillations of closely adjacent frequencies which are applied through a ring modulator M1 to the network X under test. The output of the network X is connected through amplitude measuring and regulating means consisting of a voltmeter RV and variable attenuator b to the input of a modulator M2. The carrier oscillation for this modulator is supplied from the generator 2 through a phase-shifter Ph which produces a phase-shift of 90‹. The output of the modulator M2 is connected to a heterodyning means E in which the coincident side-bands are separated from other side-bands. The heterodyning oscillation is obtained from the output of a modulator M3, the input of which is obtained from the generator 1 and from a frequency doubler D supplied from the generator 2. The output of the heterodyning means E is connected to a measuring device P which measures the R.M.S. value of the coincident side-bands. From this value the time of transit may be determined, or the instrument P may be calibrated directly.
Patent GB-594746-A (GB)
Title: An improved mounting for the reflector fitting of tubular fluorescent lamps
IPC: F21S8/04
Filed: 1945-07-02
Abstract: 594,746. Tubular electric lamps. REVO ELECTRIC CO., Ltd., and FELTON A. E. July 2, 1945, No. 16713. [Class 75 (iv)] A starter gear mounting a for the reflector corner b, Fig. 3, of a tubular fluorescent lamp c has a link connection between the mounting a and the corner b which allows a limited separation of the components to permit access to control gear located between the components. To inspect the control gear, a screw f, Fig. 2, may be rotated until it becomes disassociated from a rod e, when the carrier b will drop under gravity with studs b<2> sliding in slot d<2> of the links d, and the carrier b may then be rotated to cause a hooked portion bl to engage a channel a<3> of the mounting a. Alternatively, Fig. 4, a rod h may be rotated till a screw-threaded portion is free from a tapped hole g<1>, when the reflector drops as before. In both forms the carrier b may be locked in its open position, either by tightening the nut b<2>, Fig. 3, or rotating the rod h, Fig. 4, so that a screw-threaded portion h<3> engages with the tapped hole g'.
Patent GB-1278847-A (GB)
Title: New amidothionophosphoric acid phenyl esters
Inventor: SCHRADER GERHARD
IPC: A01N57/30
Filed: 1970-04-08
Abstract: 1278847 Amidothionophosphoric acid phenyl esters FARBENFABRIKEN BAYER AG 8 April 1970 [14 April 1969] 16717/70 Heading C2P Novel compounds of the Formula I where R is alkyl, R<SP>1</SP> is C 1-6  alkyl or C 3-6  cycloalkyl, R<SP>11</SP> is halogen, C 1-4  alkyl, alkylmercapto, alkylsulphoxyl or alkylsulphonyl and R<SP>111</SP> is hydrogen, halogen or C 1-4  alkyl, may be prepared by reacting compounds of the formula II with ammonia. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredient in conventional pesticidal compositions. The compounds of Formula II are prepared by reacting O-alkylthionophosphoric acid dihalides with an appropriately nuclear-substituted salicylic acid ester.
Patent GB-840088-A (GB)
Title: Fuel and fuel additive for spark ignition internal combustion engines
IPC: C10L1/30
Filed: 1956-05-30
Abstract: A gasoline composition contains from 0.2 to 1 cc. per U.S gallon (0.005 to 0.025% by volume) of a trialkyl phosphine in which the alkyl groups are selected from C1 to C3 alkyl groups and primary and secondary C4 and C5 alkyl groups.  The composition also contains tetraethyl lead.  In examples gasolines contain tri-n-butyl phosphine.  Other compounds mentioned are triethyl, tripropyl, diethyl methyl, diethyl propyl, diethyl isopropyl, diethyl butyl, and diethyl amyl phosphines.
Patent GB-1046311-A (GB)
Title: Substituted benzimidazolinyl-piperidines
IPC: C07C33/34
Filed: 1965-04-21
Abstract: New compounds of formula <FORM:1046311/C2/1> where Ar is phenyl, halophenyl, lower (i.e. 1-5 C) alkylphenyl or lower alkoxyphenyl, R is hydrogen, lower alkyl, lower alkylcarbonyl, benzoyl, hydroxymethyl, halomethyl, lower alkoxymethyl, cyanomethyl or cyano- CH(R2)CH(R2)-, R2 being hydrogen or methyl, R1 is hydrogen or methyl, and n is 1 or 2, and non-toxic acid addition salts thereof, are prepared by methods comprising (1) reaction of an Ar-alkenyl-chloro or -bromo compound with a 4-substituted-piperidine, (2) introduction of a hydroxymethyl group R with formaldehyde, from which halomethyl compounds are obtained and thence alkoxymethyl or cyanomethyl compounds, (3) introduction of alkyl groups R, (4) introduction of alkylcarbonyl or benzoyl groups R, (5) introduction of cyano- CH(R2)CH(R2)- groups R using a ,b -unsaturated nitriles.  Starting materials prepared are: 1-(4-fluorophenyl) - 4 - chloro - 1 - butene, 2 - phenyl - 5 - bromo - 2 - pentene, 2 - (4 - fluorophenyl) - 5 - bromo - 2 - pentene, 2 - (4 - methoxyphenyl) - 5 - chloro - 2 - pentene, 2 - (4 - chlorophenyl) - 5 - chloro - 2 - pentene and 2 - (4 - methylphenyl) - 5-chloro-2-pentene, all obtained from corresponding phenyl - cyclopropyl - carbinols with halogenating agents; dl - cyclopropyl - 4- (methoxy-, chloro-, methyl-)phenyl - methyl-carbinols are prepared from ketones and Grignard reagents.
Patent GB-614380-A (GB)
Title: Improvements in or relating to muzzle attachments for rifles
IPC: F42B12/10
Filed: 1945-07-25
Abstract: 614,380. Smallarms. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. July 25, 1945, No. 16783/47. Convention date, Feb. 10, 1944. Divided out of 614,320. [Class 119] A muzzle attachment on a rifle for throwing a grenade &c. 1 is longitudinally slit at the end engaging the rifle barrel to allow passage of the rifle sight 57 and carries levers 53 having cams 58a adapted to grip the barrel 52 of the rifle. Fingers 55 on the levers engage behind the rifle sight 57.
Patent GB-581309-A (GB)
Title: Improvements in or relating to top-pieces for the heels of boots and shoes
IPC: A43C13/02
Filed: 1944-09-04
Abstract: 581,309. Heel top-pieces. HILL, Ltd., D., and ELDRIDGE, C. A. Sept. 4, 1944, No. 16812. [Class 17 (ii)] Two or more shaped sections of a leather heel toppiece are connected in edge-to-edge relation by corrugated fasteners 14, such as those described in Specification 343,514. Specification 560,510 also is referred to.
Patent GB-446046-A (GB)
Title: Manufacture of moulded bodies from moulding powder, such as artificial resin
IPC: B29C43/00
Filed: 1935-06-11
Abstract: Irregularly striped, marbled, or mottled articles having stratifications cutting the surface at an angle are manufactured from moulding powders such as carbamide resins by arranging different coloured powders in separate layers or heaps in a mould, subjecting the mass to a cold or short hot pressing operation to produce in the mould an irregularly patterned preform, cutting the preform so that its strata are intersected at an angle, and subjecting the cut pieces to hot pressing.  The cut pieces may be rearranged side by side with their cut surfaces facing upwards and downwards and pressed into flat articles such as table tops or they may be arranged in a hollow mould and pressed to form bowls. The sawn or cut pieces may be united before pressing by passing them between heated rollers or by a preliminary pressing.  Instead of sawing the preform obliquely the layers may be arranged obliquely in the mould and may be sawn vertically or horizontally. Rods may be produced by sawing the preforms into four-sided rods which are turned to approximately cylindrical form and hot pressed.  Tubes are formed by boring the cylindrical preforms or cutting them in half and moulding round a hot mandrel.  Sheets of the material may be used for facing asbestos-cement plates &c. Specific examples of these methods are given.  According to another modification, a preform is produced having substantially parallel strata.  This is sawn at right angles to the strata and the pieces are turned on edge and introduced into a mould which has an extrusion slot in its base extending perpendicular to the direction of the strata.  The material is heated to 70-100 DEG C., and extruded to form a sheet which may afterwards be cut up.
Patent GB-229562-A (GB)
Title: A new or improved stop for use with doors and windows
IPC: E05F11/00
Filed: 1924-07-14
Abstract: 229,562. Bourn, S. T. July 14, 1924. Window stops.-The device consists of quadrant plates 1, 2 hinged together at 3 and provided with a spring, as shown, the member 2 having a side flange 5 and a finger hole 7. When in use, the plate 2 is moved to stand out from the attachment member 1, as shown in Fig. 4.
Patent GB-968007-A (GB)
Title: Improvements relating to electric arc stud welding
Inventor: LAURIE DONALD JAMES NEVILLE
IPC: B23K9/20
Filed: 1962-05-02
Abstract: 968,007. Control systems for stud-welding apparatus. CROMPTON PARKINSON Ltd. April 26, 1963 [May 2, 1962; Feb. 17, 1963], Nos. 16882/62 and 5065/63. Heading H2H. [Also in Division B3] Electric arc stud welding apparatus comprises means for charging a bank of capacitors and means including an ignitron for discharging the capacitors through the stud and workpiece to effect the weld, the arc being initiated either by retraction of the stud from the workpiece or by means of a fusible tip on the stud. Capacitors 3 are charged to a predetermined potential by means of a transformer 1 and a circuit including a rectifier 5 and contacts R3a of a relay R3, the potential being determined by the slider 9 of a potentiometer 10 in parallel with a capacitor 3. A tube TT conducts at the predetermined potential to energize relay R3 opening contacts R3a to terminate charging of the capacitors. A contact 11 operated by a timing device T periodically de-energizes relay R3 to remake the charging circuit to maintain the charge on the capacitors if these remain idle for any period. To initiate a weld, push-button PB is closed to energise relay R7, closing contacts R7a, R7b. Closure of contact R7a energizes relay R4 which isolates the capacitors 3 from the charging source by opening contacts R4a, R4b and by closing contact R4c completes the firing circuit for the ignitron 15. With a stud 16 with a fusible tip 17 in contact with the workpiece 18 (as shown in the Figure) welding current will flow through the ignitron 15 to fuse the tip 17 and thereafter complete the weld in the normal manner. When it is required to carry out a weld by first retracting the stud 16 a switch SW3 is closed to energize the stud retracting solenoid 20. The weld is initiated as before by closing push-button PB which fires the ignitron 15 through which current initially passes by way of a circuit including the now closed contact R7b. Simultaneously with the firing of the ignitron 15 the opening of a contact R4d deenergizes the solenoid 20 whereupon the stud 16 moves into contact with the workpiece 20 when the full welding current will flow through the ignitron 15. A switch SW2 allows the selection of the number of capacitors 3 used for the welding operation.