baber/WOPTO huggingface dataset:
Patent GB-1371582-A (GB)
Title: Seal members for rotary piston internal combustion engines
IPC: F01C19/02
Filed: 1972-09-06
Abstract: 1371582 Rotary positive-displacement machines RAMSEY CORP 6 Sept 1972 [1 Oct 1971] 41327/72 Heading F1F In a Wankel-type I.C. engine gas seals for the piston 10 comprise apex seals 40 each of which has in cross-section substantially a T-shaped profile, is furnished with ribs 41a, 41b, that slide on the inner peripheral surface of the housing (not shown) and can pivot about a longitudinal axis within a groove 20. A carrier 50a lodged in each groove 20 has a rectangular groove 56 to accommodate a cylindrical portion 70 of the respective seal, a waist portion 71 permitting the seal to pivot. Each rib may have a wear-resistant coating 43. United corner and side seal members 21, 22 are also comprised in the gas seals and are coupled to the carriers so as to prevent the latter turning in the grooves 20. The seals 40 may have flat-sided webs, or "uprights", instead of the portions 70, 71, Fig. 4 (not shown), the corner members 22 and carriers then being modified to permit the latter to turn in the grooves therefor, Figs. 6 to 10 (not shown). Parts of the piston adjacent the grooves 20 may be undercut, as shown, to obviate fouling of the lateral parts of the apex seals.
Patent GB-935970-A (GB)
Title: Toilet-unit flushing apparatus
Inventor: LEFEBVRE PALMA ADRIEN
IPC: E03D5/10
Filed: 1961-11-18
Abstract: 935,970. Sanitary closets; foot- and seatoperated flushing devices for closets. PALLEON ELECTRONICS Ltd. Nov. 18, 1961, No. 41353/61. Class 26. A toilet unit flushing apparatus permitting normal manual flushing and automatic flushing, comprises, in combination with a toilet unit flushed by a mechanism supplied with pressure water by a pipe 2 in which is a control valve 3 with a hand lever 4, a conduit 6 by-passing the latter to connect the toilet unit, e.g. a toilet bowl, directly with the pipe 2 on the inlet side of the valve 3, in which is an automatically-actuated valve 7. The valve 7 is normally closed by a solenoid plunger 10 but is automatically opened, when a toilet user departs, by a user-operated pad 12 after energising of the solenoid 10 (through wires 15, 16. to an electronic or electromechanical-circuit mechanism 11 and wires 17, 18 to the valve 7 therefrom), by previous pressure, on the pad 12. There could be a pedal-operated lever for the hand lever 4, and a seat-actuated circuit closing switch for the mat 12. A urinal arrangement is also described. Specification 933,557 is referred to.
Patent GB-1437228-A (GB)
Title: Lactones of the diazaxanthene series and dye precursors for copying processes
IPC: C09B11/26
Filed: 1973-09-04
Abstract: 1437228 Diazaxanthene lactones BASF AG 4 Sept 1973 [5 Sept 1972] 41467/73 Heading C4P [Also in Division D2] The invention comprises diazaxanthene compounds of the general formula in which R<SP>1</SP> and R<SP>2</SP> are each independently a hetero ring of the formula or a group -NR<SP>3</SP>R<SP>4</SP> wherein R<SP>3</SP> and R<SP>4</SP> are each independently H, C 1 -C 6 -alkyl cyano-C 1 - C 6 -alkyl or C 1 -C 6 -hydroxyalkyl, alkoxyalkyl having 2 to 12 carbon atoms, carbalkoxyalkyl having 4 to 11 carbon atoms or phenyl-alkyl having 7 to 12 carbon atoms, X and Y are OH, chlorine or C 1 -C 8 -alkyl, R<SP>5</SP> is OH, chlorine, C 1 -C 3 -alkyl, or Z is H, chlorine, nitro, C 1 -C 3 - alkyl, C 1 -C 3 -hydroxyalkyl or C 1 -C 3 -haloalkyl and m and n are each independently 0 or an integer from 1 to 3. They are prepared by condensing a benzoybenzoic acid of the general formula wherein R is H, C 1 -C 4 -alkyl or aryl and R<SP>1</SP>, X, Y, Z, n and m are as above with a pyrimidine compound of the general formula wherein R<SP>1</SP> is H, C 1 -C 4 -alkyl or aryl and R<SP>1</SP> and R<SP>5</SP> are as defined above in presence of sulphuric acid, polyphosphoric acid, acetic anhydride or zinc chloride at 60-160 C. The compounds are used in pressure sensitive recording processes.
Patent GB-1442984-A (GB)
Title: One-way valve
IPC: F16K15/02
Filed: 1972-09-07
Abstract: 1442984 Valves IMPERIAL CHEMICAL INDUSTRIES Ltd 28 Nov 1973 [7 Sept 1972] 41486/72 Heading F2V In a check valve for use in titration equipment the closure member 1 is made of glass and the apex 6 is ground to provide a snug fit with a similarly ground seating surface 5, also of glass. The closure member is provided with a steel ring 2 inserted in its surface so that the valve may be operated by a magnet as well as by fluid pressure. Other materials may be used for the conduit such as metals, alloys, e.g. steel, or synthetic materials, e.g. "Teflon" (Registered Trade Mark).
Patent GB-1149526-A (GB)
Title: Polymerisation of styrene and substituted styrenes
Inventor: ONYON PETER FREDERICK
IPC: C08F32/08
Filed: 1965-09-30
Abstract: 1,149,526. Catalytic polymerization of styrene and its substitution products. BRITISH INDUSTRIAL PLASTICS Ltd. 22 Sept., 1966 [30 Sept., 1965], No. 41553/65. Heading C3P. Styrene or its substitution products (as defined below) are polymerized in the presence of a catalytic amount of antimony pentafluoride or complex thereof. The substituted styrenes are defined as α- or #-substituted styrenes, the #-substituent may be linked to the phenyl ring of the styrene to form a ring, and ring substituted styrenes in which the ring substituents may also form another ring, e.g. α-methyl-, α-phenyl- or o-, m- and pmethylstyrene, stilbene, indene, coumarone, acenaphthylene, anethole or 1- or 2-vinyl naphthalene. The catalyst may be a complex of antimony pentafluoride with diethyl ether, methyl or ethyl cyanide or 1,1,2- trichloro-1,2,2-trifluoro-ethane; or triphenylmethyl hexafluoroantimonate. The polymerization may be carried out in bulk or in methylene chloride or heptane.
Patent GB-1388995-A (GB)
Title: Portable lanterns
IPC: F21L14/02
Filed: 1973-09-04
Abstract: 1388995 Portable lanterns ESB Inc 4 Sept 1973 [13 Nov 1972] 41553/73 Heading F4R A battery powered electric lantern comprises a two-part battery housing 14, 16 releasably held together by an internal rod 20, an electric lamp assembly 29 including the upper portion 14 of the battery housing releasably coupled therewith and an electrical circuit which connects terminal contacts within the battery housing with the lamp or lamps 24 of the assembly 29. As shown, the lamp assembly 29 comprises a transparent lens 22 and a hood 26 with a handle 28 which fits snugly over the top of the lens. The whole lantern is held together by the rod 20 which is secured into the base of housing portion 16 and passes through an opening 36 at the top of upper housing portion 14 where it is axially fixed but free to rotate, and which then passes through the lens 22 and hood 26 to engage a knob 56 which is tightened to clamp the assembly together. By rotation of the knob 56 the rod 20 is unscrewed from the housing portion 16 to permit access to the batteries 18. Removal of nut 60 on top of knob 56 permits the lamp assembly 29 to be dismantled giving access to the lamps 24. The electrical circuit, Figs. 5 and 6 (not shown), includes an inverter to provide a high voltage A.C. supply to the lamps and two switches 72, 74 selectively energize one, both or neither of the lamps to give a "bright" or "dim" light, and the electrical circuit is opened when the two parts of the battery housing are separated from one another. In an alternative embodiment, Figs. 7 and 8 (not shown), the lens, lamp and hood are circular in shape and sufficiently long wires may be provided to electrically connect the lamp assembly and batteries such that they may be operated separated from one another. In a further embodiment, Figs. 9 and 10 (not shown), the lamp assembly is circular and is rotatably mounted between a pair of arms extending from the battery housing. The central region of the lamp assembly may be provided with a mirror or an electrical appliance, such as a radio, fan or insect sprayer.
Patent GB-856096-A (GB)
Title: Variable damped, high gain, low phase shift two motor servo system
IPC: G05D1/04
Filed: 1958-12-23
Abstract: 856,096. Control of two motors. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION]. Dec. 23, 1958 [Dec. 23, 1957], No. 41557/58. Class 38 (3). [Also in Group XXXVIII] A servo system has two motors to provide fast or slow response depending on the magnitude of the error signal, the fast motor system being fed through limiter means so that it is only effective for high values of error voltage, and is associated with a negative feed-back signal which is eliminated at high values of error voltage. As shown, the altitude of an aircraft is measured by a pressure-sensitive diaphragm 5 attached to the armature 11 of an E-type transformer 13, whose output signal is amplified at 35 and fed to a slow servo system 27 and a fast servo system 29, the combined output rotation repositioning the E-shaped core 17 to eliminate the error signal, simultaneously driving an indicator 8 and feeding a signal into an auto pilot 7. The slow servo system 27 comprises amplifier 38, motor 41 and tachogenerator 45 producing a feed-back signal for amplifier 38. The rotations of motor 41 are fed through gear train 42 to a differential gear 43. The fast servo system 29 comprises an amplifier 55 fed with the amplified error signal through a diode switch 53, motor 61, and feedback tachogenerator 67, the rotations of motor 61 being fed to differential gear 43 through a one-way coupling 62 which prevents mechanical feed-back from the differential gear 43 to motor 61. When the error voltage exceeds a predetermined magnitude the switch 53 becomes conductive and feeds the error signal to amplifier 55 to energize motor 61. A second diode switch 73 is located in the feed-back circuit from generator 67 to short-circuit the feed-back voltage when the error voltage is large.
Patent GB-1472788-A (GB)
Title: Light source of adjustable colour
IPC: G03B27/32
Filed: 1974-09-24
Abstract: 1472788 Adjustable colour light source GRETAG AG 24 Sept 1974 [12 Oct 1973] 41579/74 Heading F4R [Also in Division G2] A light source of adjustable colour comprises three lamps 1a, 2a, 3a of separately adjustable intensity, and filters 2e, 3e arranged so that light from one lamp 3a consists of one additive primary colour (preferably red), light from the second lamp 2a consists of the same colour (red) together with one other additive primary colour (green) and light from the third lamp consists of all three primary colours. As shown in a photographic printer, the filtered light passes through a mixer 4 to illuminate an original on a mounting 7. Light from the original is detected by photosensitive elements 8, 9, 10 positioned on a shutter 5b and respectively sensitive to blue, green and red light to control the intensity of the lamps (see Division G2). As shown, the apparatus includes reflectors 1b, 2b, 3b, cold light mirrors 1c, 2c, 3c, heat reflecting filters 1d, 2d, 3d a converging element 4a (or fibre optic system), a laminated mixer 4d, a diffusing screen 4e, a mirror 4c, a light trap 4b which may be hollow and internally silvered or solid, clear plastics, and a diffusing screen 4f. Optionally the white light from lamp 1a is passed through a filter having a magenta or blue cast.
Patent GB-1559758-A (GB)
Title: Sewing unit
IPC: D05B33/02
Filed: 1977-10-06
Abstract: The unit is provided with a work table (1) on which are disposed a first sewing machine (3) and a second sewing machine (8) capable of sewing the edges (11) of superimposed pieces of fabric (5), and in which there operates a transfer device (12) capable of moving the outgoing pieces from the first machine (3) towards and in alignment with the second machine (8). The work table (1) is provided with a curved downward extension (32) capable of supporting the superimposed pieces of fabric which are well stretched and paired, and in which there operates an auxiliary joining device which interacts with the transfer device (12) to move the portion of fabric lying on the curved portion (32) during the transfer cycle. With this unit it is possible to assemble two pieces of fabric, one of which consists of particularly slippery material, such as lining material, without constant manual adjustment. <IMAGE>
Patent GB-970143-A (GB)
Title: Improvements in the control of magnetohydro-dynamic generators
IPC: H01J45/00
Filed: 1962-11-05
Abstract: 970,143. Generators operating by electromagnetic interaction with fluids. BROWN, BOVERI & CO. Ltd. Nov. 5, 1962 [Dec. 13, 1961], No. 41708/62. Heading H2A. The electrical power output of a magnetohydrodynamic generator is controlled by varying the concentration of seed material and subsequently the mass flow of the working fluid through the generator. In the open-circuit magnetohydrodynamic generator installation shown, air is drawn in by compressor 1 and preheated at 2 before passing to combustion chamber 3 where it is mixed with fuel from 4 and the hot gas produced flows through duct 5 and generates electricity at electrodes 7. The hot exhaust gas flows through preheater 2 and gives up its remaining heat to a steam circuit comprising boiler 8, power turbine 9, which drives generator 10, turbine 11, which drives compressor 1, condensers 12, 13, pumps 14, 15 heat exchangers 16, 17, and feed pumps 18. The conductivity of the working gas is increased by adding seeding material whose flow is regulated by dosing pumps 20 and valve 22 and controlled by measuring element 23. By using different types of seeding material or mixtures thereof various levels of ionization may be obtained. The mass gas flow may be varied by an exhaust throttle 24 or by changing the speed of compressor 1. Further control may be obtained by varying the temperature level in the generator by altering the quantity of fuel supplied, by use of by-pass valves 27, 28, or by changing the gas composition, or by altering the magnetic field strength.
Patent GB-1493647-A (GB)
Title: Methods and apparatus for producing liquid droplets
IPC: B41J2/10
Filed: 1975-10-14
Abstract: 1493647 Ink jets INTERNATIONAL BUSINESS MACHINES CORP 14 Oct 1975 [18 Dec 1974] 41932/75 Heading B6P To prevent the formation of or cause the merging of satellite droplets with the main droplets of an ink jet two periodic signals are applied successively but asynchronously to a filament of ink. As shown in Fig. 2 this is achieved by applying a signal of wavelength # to an electromagnet whose pairs of pole faces 16, 18 and 17, 19 are separated by a distance not equal to #. Alternatively, Fig. 5, the piezoelectric transducer 36 and electromagnetic transducer 38 receive periodic but asynchronous signals 37, 43 respectively.
Patent GB-966681-A (GB)
Title: Direct current to direct current converter
IPC: H02M3/338
Filed: 1962-11-06
Abstract: 966,681. D.C. to D.C. converters. VARIAN ASSOCIATES. Nov. 6, 1962 [Nov. 29, 1961], No. 41960/62. Heading H2F. A D.C. to D.C. converter comprises a transistor oscillator feeding a pair of voltage multiplying rectifying circuits. The oscillator includes a transformer and transistors 21, 22 in push-pull, the operation depending on saturation of the transformer core 12. A capacitor 37 is provided for starting, and a D.C. bias for the transistor bases is provided by a potential divider 25, 26 whose interconnection is connected to the centre-tap of a feedback winding connected to the bases. As shown, two oppositely wound secondary windings 16, 17 are provided, each feeding a voltage quadrupler. These are connected in series to give eight times the voltage. The transformer has an annular magnetic core of 80/20 Ni-Fe alloy with a maximum permeability of 70 K. gauss/oersted and a saturation flux of less than 7000 gauss. PNP or NPN transistors may be used.
Patent GB-1526795-A (GB)
Title: Polymers containing nicotinic acid process for their preparation and their use
IPC: C08B31/02
Filed: 1975-10-14
Abstract: 1526795 Nicotinic acid derivatives of dextran P FERRUTI and R PAOLETTI 14 Oct 1975 [15 Oct 1974] 41992/75 Heading C3U Nicotinic acid residues are bound by ester bonds to a polymer of α-D-glucose, e.g. dextran.
Patent GB-1383038-A (GB)
Title: Milking apparatus
IPC: A01J5/017
Filed: 1972-09-12
Abstract: 1383038 Milking machines BABSON BROS CO 12 Sept 1972 42233/72 Heading AIM A milker unit has the teat cups automatically and individually removed from each teat, as the corresponding udder section is milked out, by vacuum-operated pistons 34a which are connected to respective teat cups by flexible cables 38. Milk flow from each inflation passes through a respective flow sensor 64 having a probe 66 detecting absence of milk in a well 52. When flow ceases, vacuum is applied to the piston, thus pulling the teat cup downwardly and kinking the inflation stem to block the passage to the flow sensor and thus cut off vacuum to the interior of the inflation. Further pull on the teat cup removes it from the teat. The teat cups are connected to a milk receiver 22, the base of which houses the pneumatic cylinders and associated pistons 34a. The flexible cables 38 are connected to the pistons and. the teat cups by universal joints, and are releasably connected to the teat cups by ring-and clip arrangements 42, 43 and to the pistons by spring clips 46. The flow sensors 64 are mounted in the top of the milk receiver.
Patent GB-1330007-A (GB)
Title: Bobbin handling apparatus
IPC: B65H67/08
Filed: 1970-09-04
Abstract: 1330007 Supplying and collecting bobbins to and from spinning and winding machines LEESONA CORP 4 Sept 1970 [15 Sept 1969] 42362/70 Heading D1F In automatic handling apparatus which recirculates and sorts bobbins ejected from a winding machine after unwinding, bobbins entirely bereft of yarn and bobbins retaining yarn and in sufficient quantity as to justify a return to the winding apparatus are separately identified and assessed and then directed accordingly. The system represented in Fig. 1 comprises a supply area 10 such as a spinning room and a loading station 12 which may include storage conveyor bins for delivery of filled bobbins to measuring hoppers for subsequent delivery to an overhead conveyor 16 which includes a continuous track 18 passing through area 10 and a winding area 20. Track 18 carries continuously moving containers 22 which receive the filled bobbins from the measuring hoppers and convey them to hoppers as at 24, whereupon now empty containers 22 may receive emptied bobbins from hopper 28 and deliver them to a receiving station hopper 30. Filled bobbins pass through a chute 32 into processing apparatus 34 which includes apparatus 36 for preparing filled or supply bobbins to be transferred by conveyor 40 to the stations of a winder 38 whereat the bobbins are unwound and then ejected (to be conveyed directly to hopper 28 for return by system 16 to receiving station hopper 30). Orienting apparatus 42 passes bobbins on conveyor 44 to readying apparatus 46 (generally as described in Specification 1229827) whence bobbins are delivered by conveyor 40. A chute 90 delivers a bobbin, which has failed to pass inspection, for further, e.g. manual, inspection or through chute 94 for rejection. The sorter 100 takes ejected bobbins from the winder 38, directs empty bobbins to conveyor system 16 for return to hopper 30 and filled bobbins to conveyor 106 for return to apparatus 36.
Patent GB-1109458-A (GB)
Title: Power capacitor device having improved temperature operating characteristics
IPC: H01G4/38
Filed: 1965-10-07
Abstract: 1,109,458. Capacitors. WESTINGHOUSE ELECTRIC CORPORATION. 7 Oct., 1965 [29 Oct., 1964], No. 42605/65. Heading H1M. In the power capacitor shown, each capacitor section 26 is formed by winding a pair of foils with a pair of dielectric strips, the foils being cut at intervals during the winding and the cut ends separated so as to form voltage step capacitor plate foils providing at least two voltage steps, the inner end plate foils of the various sections 26 are commonly connected by means of strip 82 to insulated high-voltage connection 22 and the outer end plates are wrapped round each section for a turn or move to provide parallel connection between the sections and facilitate heat removal from the interior. Connection is made with the earth terminal 20 through a conductive plate 84. A second plate 88 at the other end in electrical contact with the first may also be included. A resistive shunt across the terminals is enclosed in tube 40 within sheath 42. The assembly is disposed within a U-shaped channel member 48 and possibly panel members 50, and inserted into casing 12. Resilient means 27 in the sides of member 48 maintain contact with the casing 12 under varying temperature conditions and facilitate heat transfer from the sections 26 to the casing 12. Fig. 5 (not shown) illustrates an electrical circuit including twelve capacitor sections 26 in parallel each section comprising two end-plates and four floating plates.
Patent GB-1098178-A (GB)
Title: Improvements relating to data processing apparatus
Inventor: TOWELL ROGER PERCIVAL
IPC: G06K9/64
Filed: 1963-10-30
Abstract: 1,098,178. Circuits employing bi-stable magnetic elements; pulse radar. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 16, 1964 [Oct. 30, 1963], No. 42729/63. Headings H3B and H4D. [Also in Division G4] In a shift register an output conductor linking all the cores of the register is connected to a threshold device so that when a series of binary signals applied to the register is shifted along the register an output signal is obtained from the threshold device when the series of binary signals includes more than a predetermined number of signals of one binary value. In one embodiment quantized signals derived from the signals produced by a target at a selected range are applied to the input winding W 1  of core C 1  and if a core is in the " 1 " state prior to the application of the shift pulse the resultant change in flux includes a signal in winding W 0 . This signal after being delayed by D is applied through gate G, opened when the shift pulse ceases, to switch the next core to the " 1 " state. If a core is in its " 0 " state no signal is induced in the corresponding output winding and the following core remains in the " 0 " state set by the shift pulse. Since the sense conductor threads all cores in the same sense the amplitude of the signal induced therein when a shift pulse is applied is indicative of the number of " 1's " stored in the cores so that when the number of cores switched from the " 1 " state to the " 0 " state is greater than a predetermined number a threshold device T produces an output signal. The centre of a group of " 1's " applied to the input may be detected by providing those cores in the vicinity of the centre of the register with more windings of the sense conductor than those near the ends of the register so that those cores with the larger number of windings produces a larger signal in the sense conductor. The delay elements D and gates G may be replaced by a further set of cores. Recognizing characters.-The shift register may also be used to identify patterns of binary signals derived by scanning printed characters. A plurality of sense conductors may be threaded through the cores of a single-shift register or a separate shift register with a single sense conductor may be provided for each pattern and the binary input signals applied to all the registers simultaneously. Each sense conductor is threaded through the cores in a unique pattern so that at any instant the largest output signal will appear on the sense conductor associated with the pattern which is most similar to the pattern of binary signals in the register at that instant. An improvement in the discrimination between patterns may be obtained by providing different numbers of sense-conductor windings on different cores.