baber/WOPTO huggingface dataset:
Patent GB-967479-A (GB)
Title: Compositions for water base paints
IPC: C08F2/22
Filed: 1962-06-20
Abstract: Stable latices are prepared by copolymerizing in aqueous emulsion at 0 to 90 DEG C. using a free radical catalyst (1) a vinyl ester of a saturated aliphatic monocarboxyl acid in which the carboxyl group is attached to a tertiary or quaternary carbon atom, (2) an alkyl ester of a polymerizable alpha, beta-ethylenically unsaturated carboxylic acid and (3) 0.5 to 5.0% by weight of the monomers of an alpha, betaethylenically unsaturated carboxylic acid.  The vinyl ester may be an ester of pivalic acid or its homologues, or mixtures of acids obtained by the reaction of olefins with formic acid or carbon monoxide and water.  Specified unsaturated acids are acrylic, methacrylic, maleic and itaconic acids, and many suitable alkyl esters of such acids are listed.  Polymerization may be effected in the presence of emulsifiers, e.g. sodium alkylaryl polyethoxyethanol sulphates, sodium, potassium and ammonium oleates sulphonates, sulphosuccinates, and ethylene oxide condensates with alkyl phenols, fatty acids, amides and polypropylene glycols.  Examples describe the polymerization in the presence of ammonium persulphate, sodium hydrosulphite, sodium alkylaryl polyethoxyethanol sulphate and an ethylene oxide-octylphenol condensate of (I and II) vinyl pivalate, ethyl acrylate and methacrylic acid; (III) vinyl pivalate, n-propyl acrylate and methacrylic acid; ethyl acrylate and methacrylic acid with vinyl esters of (IV) C9 and (V) C5- 6 branched carboxylic acids; and methyl methacrylate and methacrylic acid with vinyl esters of (VI) C7-9, (VII) C9-11, (VIII) C15- 19 (IX) C13 branched carboxylic acids. The latices may be used in emulsion paints.
Patent GB-1148320-A (GB)
Title: Improvements in or relating to logarithmic aerial systems
IPC: H01Q11/10
Filed: 1966-05-11
Abstract: 1,148,320. Aerials. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 11 May, 1966 [21 May, 1965], No. 20822/66. Heading H4A. A planar log-periodic aerial has a reflector comprising elements which resonate at different frequencies spaced over the working frequency band. As described, an aerial 1, Fig. 5, is backed by a reflector 2<SP>1</SP>, which may have either of the shapes shown in Fig. 4. This reflector is bent into a V-form, and it may lie substantially on a conical surface, its apex being placed adjacent the centre of the aerial. Power is fed by a cable FC, and the main direction of radiation is perpendicular to the plane of the aerial and away from the reflector. It is stated that good results have been obtained over a 10: 1 frequency range, and that the arrangement is particularly suitable for use on rockets and aircraft.
Patent GB-140976-A (GB)
Title: Improved snap fastener for jewel or similar case, box, or the like
IPC: E05C1/10
Filed: 1919-09-29
Abstract: 140,976. Cheney, C. W. Sept. 29, 1919. Catches, spring.-A snap-fastening for jewelcases and the like comprises (a) a body portion as shown in outline in underneath view in Fig. 3, having a raised central part c<8> and turned-down pronged edges c<5>, c<6> and (b) a movable portion consisting of an L-piece a<2> carrying the latch-head a<3> and push-pin a<4> on one limb, and having the other shaped to provide a shank f to carry the spring, which is concealed from the outer side nf the fastening.
Patent GB-1357324-A (GB)
Title: Roundness measuring gauge
IPC: G01B5/20
Filed: 1970-05-16
Abstract: 1357324 Roundness measuring gauge GOULDER MIKRON Ltd 2 Aug 1971 [16 May 1970] 23846/70 Heading G1M A component 27 to be measured for roundness by a horizontally and vertically slidable probe 17 is mounted on an axially movable and loaded spindle 18 and a rotatable spindle 19 and is driven by the friction between the lower ball 35 and the recess 28.
Patent GB-518968-A (GB)
Title: Improvements in or relating to high frequency coupling devices
IPC: H03H7/01
Filed: 1938-08-12
Abstract: 518,968. Valve circuits. JOHNSON LABORATORIES Inc. Aug. 12, 1938, No. 23848. Convention date, Aug. 12, 1937. [Class 40 (v)] [Also in Group XXXV] A high frequency coupling arrangement comprises a pair of resonant circuits 34, 35 and 37, 38, coupled together by means of a pair of series connected windings 1, 2 in one circuit. wound in the same direction, and a pair of series connected windings 3, 4 in the other circuit wound in opposite directions, a powdered core 5 arranged within the windings being movable to vary the coupling between the two pairs of windings while maintaining the inductance of each pair substantially constant. The coils 34, 37 may also effect coupling. The arrangement is shown applied to the intermediate frequency amplifier of a superheterodyne receiver and suitable dimensions and values of inductance of the windings in an arrangement so used are set forth in the Specification. The coupling arrangement according to the invention may be employed in the signal frequency resonant circuit networks of radio receivers and the resonant circuit networks of transmitters, oscillators or signal generators. It may be utilized to provide a variable regenerative or degenerative coupling between the plate circuit and the grid circuit of a thermionic tube or between an antenna or pick-up system and the first resonant circuit in a radio receiver. Specifications 403,368 and 403,426, [both in Group XXXV], are referred to.
Patent GB-831790-A (GB)
Title: Pesticidal compositions
IPC: A01N25/04
Filed: 1956-08-02
Abstract: A synthetic resin composition having pesticidal properties comprises a dispersion in an aqueous medium, of solid particles comprising an emulsion polymer in which is dissolved a pesticide, preferably prepared by dissolving the pesticide in the monomer itself or in a liquid consisting of the monomer with various prepartions of polymer and forming the resulting solution into an emulsion with water and effecting or completing polymerization or, alternatively, by adding the pesticide with or without a solvent, to a preformed polymer emulsion, provided the pesticide is such that it dissolves in one of the components of the final emulsion, e.g. the polymer itself or a plasticizer for the polymer. Suitable monomers are for example, ethylenically unsaturated hydrocarbons and their halogen and other derivatives, e.g. styrene, butadiene, methylmethacrylate, vinyl chloride, vinyl acetate and chlorostyrene.  Suitable pesticides are DDT, lindane, aldrin, dieldrin, phenyl mercuric chloride and/or parachlorophenyl - parachloro - benzyl sulphide or the corresponding benzene sulphonate, and insecticidides, including insecticidal extracts, derived from natural plants, for example pyrethrum, rotenone, derris extract and nicotine alkaloid.ALSO:A pesticidal composition comprises a dispersion, in an aqueous medium, of solid particles comprising an emulsion polymer in which is dissolved a pesticide, preferably prepared by dissolving the pesticide in the monomer itself or in a liquid consisting of the monomer with various preparations of polymer and forming the resulting solution into an emulsion with water and effecting or completing polymerization or, alternatively, by adding the pesticide, with or without a solvent, to a preformed polymer emulsion, provided the pesticide is such that it dissolves in one of the components of the final emulsion, e.g. the polymer itself or a plasticizer for the polymer.  Suitable monomers are, for example, ethylenically unsaturated hydrocarbons and their halogen and other derivatives, e.g. styrene, butadiene, methylmethacrylate, vinyl chloride, vinyl acetate and chlorostyrene. Suitable pesticides are DDT, lindane, aldrin, dieldrin, phenyl mercuric chloride and/or para-chlorophenyl-parachlorobenzyl sulphide or the corresponding benzene sulphonate, and insecticides, including insecticidal extracts, derived from natural plants, for example pyrethrum, rotenone, derris extract and nicotine alkaloid.
Patent GB-934206-A (GB)
Title: Hydraulic oscillatory drive
Inventor: RYZNER CLEMENS
IPC: F15B15/08
Filed: 1962-06-21
Abstract: 934,206. Hydraulic apparatus. P. PLEIGER, [trading as PAUL PLEIGER MASCHINENFABRIK]. June 21, 1962, No. 23988/62. Class 69 (2). An hydraulic oscillatory drive comprises a piston 5 which is axially movable in a housing 2 and is provided along one side with a rack 7 engaging a pinion 9 attached to a shaft 8 rotatably mounted in the housing, the peripheral surface of the piston opposite the shaft and/or the inner surface of the housing adjacent the peripheral surface having one or more recesses 11 adapted to be filled with an hydraulic fluid fed to the ends of the housing for moving the piston whereby the pressure exerted by the tooth flanks of the pinion and rack in a direction transverse of the axis of the piston during its movement is completely or almost completely compensated. The fluid is supplied to the ends of the housing to reciprocate the piston under the control of a reversing valve and each end of the piston is provided with passages 12 having one-way valves 13 to enable the fluid in whichever end of the housing is connected to the source to pass to the space 11. In another embodiment, the recess is formed in the housing and the fluid pressure is supplied to the recess through the passages and one-way valves and a longitudinal groove in the piston. In other embodiments, a number of recesses is formed in the piston, each separated by a sealing land and the fluid is supplied to the recesses through pipes external of the housing. The ends of the pistons are slanted at 14 so that the force exerted by the pressure fluid on the piston is directed partly towards the shaft.
Patent GB-1077438-A (GB)
Title: Improvements in or relating to modulating circuit arrangements
IPC: H03C1/54
Filed: 1966-05-31
Abstract: 1,077,438. Transistor amplitude modulating circuits; transistor switching circuits. TELEFUNKEN PATENTVERWERTUNGS GESELLSCHAFT m.b.H. May 31, 1966 [June 3, 1965], No. 24063/66. Headings H3R and H3T. A suppressed carrier modulating circuit comprises a transistor (T2, Fig. 1, not shown), the modulation being supplied through a resistance (R3) to the base and through a feedback resistance (R4) to the collector, the emitter and collector being returned to earth through resistances (R6 and R5) and the base being switched to earth at carrier frequency. The switch (S1) may comprise a transistor (T4, Fig. 2, not shown) with the carrier applied to its base through a resistance (RS1), or a symmetrical transistor (T5, Fig. 3, not shown) to which the carrier is supplied via a transformer (U) between the base and the other two electrodes through equal resistances (RS2 and RS3). In a practical circuit, Fig. 4 (not shown), the modulator is provided with input and output amplifiers (T1 and T3), and the emitter resistance (R6) of the modulator is returned to a zener diode (Z) providing suitable bias.
Patent GB-350321-A (GB)
Title: An improved method of compensating the temperature errors caused by the heating up of the current coils in direct current watt-hour electricity meters with shunts
IPC: G01R11/185
Filed: 1930-08-12
Abstract: 350,321. Compensating meters for temperature errors. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Aug. 12, 1930, No. 24066. Conven. tion date, Aug. 17, 1929. [Class 37.] In a shunted direct-current energy meter, decrease of current through the current coils due to their heating is compensated for by a resistance of high temperature coefficient, arranged to be heated by the current coil, so connected in the armature circuit as to provide a corresponding increase of armature current. The current coil is in halves 4, 5 and is connected in parallel with a shunt 3 in the main circuit. A compensating resistance 7, consisting of a thin wire of nickel or other material of high temperature cofficient wound on a strip of hard paper, is insulated with oiled paper &c. and arranged preferably between the second and third outermost windings of the half 4 of the current coil. The resistance 7 is in parallel with the armature 6, which consequently receives a higher current as the coils 4, 5 and resistance 7 warm up, thereby compensating for the lower current taken by the coils 4, 5. In order to permit the use of stock resistances 7 of a definite value, complete compensation is effected by means of a potentiometer resistance 8. Alternatively the compensating resistance 7 may have a high negative temperature coefficient and be connected in series with the armature 6, a constantan regulating resistance being connected in parallel with the armature and compensating resistance. Instead of the potentiometer resistance 8 a regulating resistance may be employed, which according to whether there is over or under compensation is connected in series either with the parallel resistance 7 or with the armature 6.
Patent GB-1322995-A (GB)
Title: Telephone exchange switching circuits
IPC: H03K17/72
Filed: 1971-04-19
Abstract: 1322995 Automatic exchange systems; semiconductor gating circuits TELETTRA LABORATORI DI TELEFONIA ELETTRONICA E RADIO SpA 19 April 1971 [13 March 1970] 24174/71 Headings H4K and H3T A crosspoint for a telephone switching matrix comprises an SCR and a diode in series between the row and column wires, a third semi-conductor connected between the junction of the SCR and the diode and ground and, bias sources for controlling the third semi-conductor such that when it is off the others are on, i.e. crosspoint conductive, and when it is on the others are off, i.e. crosspoint nonconductive. The third semiconductor comprises a transistor TR 1 whose conductivity is controlled by a flip-flop in logic L which is set and reset by means of coincident row and column pulses. The flip-flop is further effective to reset any other crosspoints in the same row as the considered crosspoint. The junction of the SCR and D1 is connected to a bias source V A  via a further diode D2 and a resistor R. In addition to the pulse controlled operation of logic L, a voltage source V1(<V A ) must be connected to transistor TR 2  in order to permit operation of the crosspoint. This action is not effected until it is confirmed that TR1 is saturated. If it is required to switch both speech wires, the secondary winding Y of the speech transformer X-Y is split with the tap connected to bias source Vcc and the free end connected to (an array of) crosspoints identical to that shown (Fig. 17, not shown). A junctor at the centre of a (folded) multistage network of such crosspoints may incorporate a transistorized negative impedance network (partly represented by TR2) for compensating the effective series resistance and shunt capacitance of the speech path, cf., Fig. 13, wherein TR 3  responds to voltage fluctuations in the speech path so as to control TR 2  which correspondingly adjusts the current supplied to the path, TR 4  then effectively playing the role of the switching transistor TR 2  shown in Fig. 3. The Specification includes a discussion on the crosstalk improvements achieved by the use of these crosspoints which considerably reduce capacitor couplings in the switching matrices.
Patent GB-301141-A (GB)
Title: Improvements relating to manufacture of artificial silk
IPC: D01D5/04
Filed: 1927-09-14
Abstract: 301,141. Gull, A. E. Sept. 14,1927. Apparatus for making filaments.-Apparatus for the manufacture of artificial silk by the dry-spinning method is constructed so that the current of air or gas with which the extended filaments are treated passes through the treating chamber, while in contact with the filaments, in the same direction as the filaments and has a greater velocity where the filaments leave the chamber than that with which it entered. Suitable apparatus comprises a jacketed chamber 2 in which filaments 5 extruded from a nozzle 4 pass down a tube 3 of gradually decreasing cross-sectional area together with a current of air or gas admitted through an inlet 2a. The air or gas is heated by a heater 6 and leaves the apparatus through an outlet 12b leading to a solvent-recovery plant. The filaments pass under a guide-pulley 7 and leave the apparatus through an outlet 2<c>; they may be first directed through any suitable twisting device so that they leave the apparatus as a single twisted thread. The tube 3 may have radiating ribs 3<b>.
Patent GB-234358-A (GB)
Title: Improvements in and connected with door locks
IPC: E05C17/14
Filed: 1924-10-13
Abstract: 234,358. Holdsworth, G. Oct. 13, 1924. Addition to 213,511. Door chains and the like.-In a door lock of the kind set out in the parent Specification where an ajar hook is pivoted to the striking-plate and is adapted to engage a notch below and opening into, the hole in the front plate of the casing for the protrusion of the bolt, and is retained therein by shooting the bolt ever the ajar hook, the bolt of the lock is adapted to be withdrawn some distance within the casing beyond the front plate when in the inoperative position, so that the ajar hook can engage the slot, and the slot is tapered so that when the ajar hook is engaged thereon and retained by the bolt, the wedging action eliminates rattling. The bolt a, which may he a latch bolt as shown in Fig. 1, or a lock bolt as shown in Fig. 6, when fully withdrawn, enters the casing so as to be well clear of the front plate c. This enables the ajar hook c to engage the taper-sided slot d opening into the bolt-hole in the plate c. When the bolt a is shot out, as shown in Fig. 6, it retains the hook against release and wedges it into the slot d so as to avoid rattling.
Patent GB-306425-A (GB)
Title: Improvements in and relating to the reduction of ores, oxides and the like
IPC: C22B19/36
Filed: 1927-09-14
Abstract: .306,425. Coley, H. E. Sept. 14, 1927. Fumes, treating with liquids.-Zinc &c. vapours are condensed by admitting them through an opening c to a water jacketed tower a down which water is caused to fall from nozzles or jets in pipes e - - k arranged as shown. The separating liquid may be circulated through a settling tank or filter press and pump, and returned to the spray pipes after separation of the condensed product.
Patent GB-1388468-A (GB)
Title: Atomizing nozzle
IPC: F23D11/10
Filed: 1972-05-23
Abstract: 1388468 Spray producers HITACHI Ltd 23 May 1972 [24 May 1971 (2)] 24254/72 Heading B2F [Also in Division F4] An atomising nozzle comprises a conically tapered face 20, a plurality of vanes 36 helically disposed on the face and defining passages for whirling and ejecting the gas onto the face 20, and liquid-ejecting means 15 disposed in the conically tapered face downstream of and in the vicinity of the outlets of the gas passages. The member 3 carrying the vanes 36 is threadably mounted on projections 11 of a central body 1 forming a liquid supply passage 1. Further gas is ejected from ports 23, the ports being defined between a tip member 22 and the front end of the body 1. The tip member may be provided with a protuberance (83), Fig. 11 (not shown), which may be provided with concave deflecting surfaces (82'), Fig. 12 (not shown).
Patent GB-632541-A (GB)
Title: Improvements in or relating to flexible bearings
IPC: F16F1/38
Filed: 1947-09-03
Abstract: 632,541. Resilient mountings. SILENTBLOC, Ltd., and TRIER, V. A. Sept. 3, 1947, No. 24318. [Class 108 (iii)] In a flexible bearing comprising substantially concentric inner and outer members with one or more rubber or like bushes disposed in the annular space between them and caused to adhere to them so as to permit relative movement between the inner and outer members by reason of intermolecular deformation in the rubber, the outer surface of the inner member is cylindrical, the inner surface of the outer member is frusto-conical over a part or the whole of its length and the rubber bush or each rubber bush is stretched over the cylindrical inner member and is maintained in close frictional contact therewith and with the outer member by being compressed axially. In the arrangement shown, two rubber bushes A, each having a cylindrical bore, a frusto-conical outer surface and a flange A3 are stretched on to metallic inner members B, the external diameters of which are appreciably greater than the initial diameters of the bushes A. The inner surface of each bush may be made frusto-conical, alternatively or additionally, to the outer surface. The assembled bushings are inserted into an outer member C formed at each end with a frusto-conical bore of slightly smaller mean diameter than that of the outer surface of each bush A and the two bushings are forced inwardly of the member C by means of side plates E and a bolt D. In a modification, the outer face of the flange A3 in its uncompressed state may be of somewhat convex form. In another modification (Figs. 4 and 5, not shown) the edge of the cylindrical bore may be rounded at the flanged end of each rubber bush and each inner member may be formed with an integral flange which engages with the flange of the bush. Each inner member may also be formed with one or more longitudinally extending slots. In further modifications (Figs. 6 and 7, not shown) each inner member is flanged, as above, and the inner ends of each bush may be rounded or formed with an internal chamfer, respectively. In another modification (Fig. 8, not shown), the outer surface of each bush may be formed partly frusto-conical and partly cylindrical, the bore at each end of the outer member being given a corresponding formation. In all arrangements, the outer circumferential surface or the exposed end face of each bush may be grooved or recessed to facilitate flow of the rubber under compression. According to the Provisional Specification the outer circumferential surface of the outer face of each bush or the bore of the outer member may or may not each have embedded in it reinforcing textile or metal fabric, such as metallic gauze.
Patent GB-423718-A (GB)
Title: Improvements relating to engine-cooling arrangements for motor vehicles with rearwardly disposed engines
IPC: F01P11/10
Filed: 1934-08-23
Abstract: 423,718. Rear - engined vehicles. DAIMLER-BENZ AKT.-GES., Untert³rkheim, Stuttgart, Germany. Aug. 23, 1934, Nos. 24345 and 24346. Convention dates, Aug. 23, 1933 and Aug. 29, 1933. [Class 79 (iii)] An engine, mounted at the rear of a motorcar, is cooled by arranging the engine a and its radiator b in a passage, formed by partitions k<1>, k<2>, d<1>, d<2>, through which all the cooling air is caused to flow by a fan c. The air, which may enter by passages h', h<2> under the rear seats or from above or below, or by a tube from the front of the car, leaves by longitudinally-arranged slots o covered by plates and a horizontal slot m covered by the number plate. The slots o are arranged in the top or bottom walls near the corners of the passage and adjacent a longitudinal partition s. Tools are accommodated in spaces f<1>, f<2>.
Patent GB-1005421-A (GB)
Title: Process for the manufacture of ª‰-naphtol
IPC: C07C37/04
Filed: 1962-06-25
Abstract: In the manufacture of b -naphthol by fusing naphthalene - 2 - sulphonic acid with caustic soda, only a small excess, e.g. up to 10%, if any, over the theoretical quantity of caustic soda is used and the fusion is effected in two stages, first at 250-290 DEG  C. and then at above 300 DEG  C., preferably at 310-315 DEG  C. Preferably, a small proportion, suitably less than 10%, of the caustic soda is melted at 250-290 DEG  C., and a mixture of caustic soda and sodium naphthalene-2-sulphonate is added to the melt in portions; when all the reagents have been added the temperature is kept at 250-290 DEG  C. for a time and then raised to above 300 DEG C.  Detailed examples are given.
Patent GB-1197835-A (GB)
Title: Improvements relating to Warpers' Beams.
Inventor: CLEGG ERNEST
IPC: D02H13/28
Filed: 1968-05-22
Abstract: 1,197,835. Warp beams. LUPTON & PLACE Ltd. 19 May, 1969 [22 May, 1968], No. 24404/68. Heading D1E. A warp beam has a flange 1 with a shoulder 3, which enters the barrel 2 and is open on its outer side, a plate 7 fitted to the flange to close the opening and a pike 6 fixed in the plate. The plate is reversible so that both ends of the pike may be used. Balance weights 15 may be fitted.