baber/WOPTO huggingface dataset:
Patent GB-396622-A (GB)
Title: Improved system for driving propellers
IPC: F02C6/20
Filed: 1933-01-14
Abstract: 396,622. Motor-power plant. AKTIEBOLAGET MILO, 32, Kungsgatan, Stockholm. Jan. 14, 1933, No. 1306. Convention date, Jan. 20, 1932. [Class 110 (iii).] Plant for driving the screw propeller of a ship or aircraft comprises a gas turbine of the double rotation type one shaft of which drives a compressor while the other shaft drives the propeller either direct or through gearing. The gas turbine 10 which is of the radial flow double rotation type has a shaft 12 which is coupled to a shaft 14 on which is the rotor 15 of a gas compressor 16. The second shaft 11 is coupled by a clutch 34 to a shaft 17 on which is mounted the rotor 18 of a second compressor 19. The shafts 11, 12 carry pinions 20, 21 which through other gears are coupled to gear wheels 26, 27 on the shaft 28 of the propeller 29. Overhung on the shaft 14 and connected by a dog clutch 33 is a reversing turbine 32. The system includes a second gas turbine 40 of the radial flow double rotation type, the shafts 41, 42 driving compressors 43, 44. In operation the compressor 16 delivers through a conduit 37 into the compressor 43 which then passes it to the compressor 44 which in turn delivers it to a heat exchanger 47 which receives heat by a passage 48 from the exhaust of the main turbine 10 and the air when so heated passes by a pipe 50 to a combustion chamber 49 into which the fuel is introduced by a nozzle 51. The combustion gas passes to the small turbine 40 and thence on to a second combustion chamber 53 wherein fresh fuel is introduced at 54 and finally goes to the main turbine 10. Beneath the chamber 53 is a branch lead to the reversing turbine. In a modification the whole of this plant is arranged coaxially and enclosed in a casing particularly when used for aircraft. Instead of the compressor shaft being coupled to the propeller shaft it may be free thereof and may act accordingly as an automatic speed control since when the propeller slows on being subject to increased resistance the compressor will speed up and supply a larger quantity of fuel to the turbine to restore the conditions. In a further modification the compressor 16, Fig. 4, may be mounted on a hollow shaft 12a coaxial with the turbine shaft 11 which drives the propeller 29 through the gears 61, and in a further arrangement, Fig. 5, the two parts of the turbine 10 may drive through shafts 11, 12 the compressors 16, 44, and the propellers 29, 29a. Instead of a mechanical gearing between the turbine and the propeller an electric hydraulic or other transmission system may be used.
Patent GB-138675-A (GB)
Title: Improvements in and relating to protective gear for alternating electric current generators
IPC: H02H7/06
Filed: 1919-01-18
Abstract: 138,675. British Thomson - Houston Co., and Wilson, R. M. Jan. 18, 1919. Protective arrangements.-Relates to protective gear for alternating-current generators provided with switches for interrupting the field current on the occurrence of a fault on the system or in the generator itself. According to the invention, a switch is provided in the tripping-circuit of the main switch of the generator which is adapted to be operated so as to open the main switch on failure, or reduction of the field current of the generator. In the arrangement shown in Fig. 1, an auxiliary contact member 1 is attached to the core of a solenoid, which may be that of the automatic circuit-breaker, in the field circuit of the generator. When the generator field in reduced, the circuit of the closing-core 10 of the main switch is broken by the main contact 11 of the circuit-breaker, and a trip circuit 5 for the main switch is completed immediately afterwards by the auxiliary contact 1. In the arrangement shown in Fig. 2, the switch 6 is normally prevented from closing a tripping-circuit for the main switch, by a solenoid 7 in series with the field winding of the generator. When the generator field fails or when the current therein is reduced by a predetermined amount, the trip circuit is closed and the main circuit-breaker actuated.
Patent GB-510439-A (GB)
Title: Improvements in or relating to the cooling of fuel injectors in internal combustion engines
IPC: F02M53/04
Filed: 1938-12-19
Abstract: 510,439. Liquid - fuel injectors. PETTERS, Ltd., and BROOKS, H. Dec. 19, 1938, No. 1396. [Class 7 (iii)] To conduct heat from the nozzle A' of a fuel injector, a bushing D<1> of copper or other good heat-conducting material is disposed between the nozzle and the combustion chamber wall B<1>, a part D<2> of the inner and/or the outer circumferential surface of the bushing being cut away to limit the direct contact between the bushing and the nozzle and/or the wall. The bushing may have a flange D<1> which contacts with a flange C<1> on a sleeve C passing through a water jacket B and housing the injector body A, or may be integral with a sleeve C which passes wholly or partly through a water jacket. In an air-cooled engine, the bushing G, Fig. 7, is provided at its outer end with a flange G<1> having cooling fins G<2>.
Patent GB-776621-A (GB)
Title: An improved jaw crusher
IPC: B02C1/06
Filed: 1955-01-18
Abstract: 776,621. Jaw crushers. WESTFALIA DINNENDAHL GROPPEL AKT.-GES. Jan. 18, 1955 [Jan. 23, 1954], No. 1477/55. Class 59 The jaws 1, 2 of a jaw crusher are driven near their lower ends by eccentric shafts 3, 4 while near their upper ends they are supported on the crusher casing by means of links 5 against which the jaws are braced by means of spring-loaded draw rods 7. The links 5 bear on the crusher casing through adjustable wedges 6. The pressure surfaces of the links are concave while the associated bearing surfaces on the casing or on the crushing jaws are convex. The shaft 3, which is fixed, is driven and the shaft 4, which is yieldably mounted and adjustable by a screw 8, is driven from the shaft 3 by. means of gear wheels 9, 10, 11, 12, Fig. 2,. the axis of the gear wheel 12 being connected to the axes of the gear wheels 10, 11 by means of rigid links 13.
Patent GB-328018-A (GB)
Title: Improvements in spraying devices
IPC: B05B3/06
Filed: 1929-01-16
Abstract: 328,018. Downs, J., and Watts Fincham & Co., Ltd. Jan. 16, 1929 Rotary apparatus.-A nozzle more particularly for spraying the insides of casks, barrels &c. comprises a rotatable head formed of two parts 11, 12, Figs. 1 and 2, mounted on a tube 13 having a flange 14 forming a ball race. The part 11 has a slot 17 behind which is a baffle 18, Figs. 1 and 4, to direct liquid evenly through the slot. The part 12 to which liquid is led through holes 16, has a downwardly directed spirally formed slot 21 on the opposite side of the apparatus to the slot 17, arranged to rotate the head. Each of the slots 21 gives a fan-shaped spray over an angle greater than 90‹, the two sprays overlap so that the whole of the interior of a can can be sprayed. The baffle 18, Fig. 4, may be provided with a projection 19 so that the lower part of the slot 21 is barred from direct access of the liquid.
Patent GB-1356133-A (GB)
Title: Disposable sanitary knickers
IPC: A41B9/04
Filed: 1971-01-13
Abstract: 1356133 Disposable sanitary knickers J A JOWITT and D E D K JOWITT 20 Dec 1971 [13 Jan 1971] 1666/71 Addition to 1198902 Heading A3V  An improvement on the disposable sanitary knickers of the parent Specification 1198902 comprises the provision of an outer skin or covering of flexible sheet-plastics material to render the knickers less likely to be damaged and more liquid-proof. Either a preformed skin of the plastics material may be sewn on to the knickers or else the plastics covering may be sprayed on to the outer surface thereof.
Patent GB-249625-A (GB)
Title: Display apparatuses
IPC: G09F11/06
Filed: 1925-01-20
Abstract: 249,625. McDonald, L. R. Jan. 20, 1925. Hinged elements, rotary apparatus with.-In advertising apparatus wherein a series of flexible sheets &c. are wound on a drum &c. and released one by one so as to drop into view, a number of sheet gripping and releasing elements are carried by a rotatable member which is driven in synchronism with the drum to engage and recede from the sheets. The free ends of the sheets 9 have staggered notches 65, 66 and are engaged by elliptical rollers 61, 62 on a shaft 46. The sheet-carrying drum 8 is rotated step-by-step and the rollers 61, 62 are simultaneously turned through a quarter of a revolution, thus releasing the sheet about to fall and gripping the next one. The actuating mechanism consists of a motor 10 rotating a shaft 20 through worm gearing 18, 19. Frictionally mounted on the shaft 20 are a detent 25, and an eccentrically mounted pawl 24 which engages the teeth of a wheel 30 fixed on the drum shaft 7. The roller shaft 46 is mounted on adjustable bearings spring-pressed towards the drum 8, and is revolved by worm gearing from a wheel 31 fixed on the drum shaft 7. Springs 77 on an adjustable bar 76 aid the winding of the sheets 9 round the drum 8. To assist in the dropping over of the sheets 9 when released by the rollers 61, 62, a current of air is continuously directed against the ends of the sheets near these rollers. A blower 15 on the motor shaft drives the air through a preferably flexible conduit 16 supported by the bar 76 and fitted with a slidable nozzle portion 103. The backs of the sheets 9 are furnished with advertising matter, that at the front being seen directly while that on the top and bottom is reflected in inclined mirrors 80, 81. Side mirrors 83, 84 may also be fitted. In a modified form of the apparatus the sheets are attached to rods detachably held between end flanges 116, Fig. 15 on the shaft 7, which also carries intermediate supporting discs to form a drum. The elliptical rollers are rotated by an eccentricreciprocated counterbalanced arm 145 having an adjustable bifurcated end 146 furnished with notches which engage four pins 152 on the roller shaft 46. The released sheet 9 is positively pushed to fall over by pawls 174 on a circumferentially oscillating rod 173 mounted on bell-cranks moved by either a surface or a grooved cam on the shaft 20. The pawls 174 carry thin blades 176 to slip under the sheet edge, and spring arms 177, 178 which rest on two cams on the shaft 46, and serve to lift the pawls in turn into inoperative position. A radially adjustable bar 190 carries expanded roll keepers 195 to assist in rolling up the sheets. The drum shaft 7 is removably supported in uprights. The device may be mounted in a frame adjustably sprung on a support to prevent jarring of the apparatus when carried on a vehicle.
Patent GB-240696-A (GB)
Title: Improvements in machines for punching statistical cards
Filed: 1925-01-20
Abstract: 240,696. Accounting & Tabulating Machine Corporation, (Assignees of Weiland, A., Russell, H. R., and Mezger, C. A.). Nov. 13, 1924, [Convention date]. Selective perforating machines.-In an electrically-actuated keyboard machine for punching statistical-cards each of one group of keys causes the actuation of two punches predetermined by the key operated, and each of another group causes the actuation of one punch. The punches may be selected from the keyboard of an ordinary typewriter during the actuation of the latter. The card 14 is fed step by step between a punchcarrying plate and a die-plate beneath a column of tweive punches, and punching is effected when the die-plate is raised by selected punches being blocked by setting-mechanism actuated by twelve bell-cranks 30. Each of the latter is controlled by a solenoid 35. Contacts on the numeral keys 1-12 are in series with the solenoids of punches 1-12, Fig. 5, respectively and are shunted by contacts on letter keys A-M. Depression of either the numeral key 1 or the letter key C, for example, causes actuation of punch 1. For the letters N-Z the punches are selected two at a time. As shown in Fig. 4, depression of the letter key P is equivalent to the depression of numeral keys 1 and 12, causing actuation of the punches 1 and 12.
Patent GB-196661-A (GB)
Title: Improvements in or relating to electrical switching devices
IPC: H01H13/02
Filed: 1922-01-20
Abstract: 196,661. Monnot, J. F. Jan. 20, 1922. Casings for electric switches are made of one piece of moulded insulated material 1 formed on its under side with a recess which contains all the metallic parts of the switch and has semi-cylindrical sockets 12 to support the heads 2 of specially constructed binding screws. Each binding screw consists of a hollow member 2 screwed inside and out and having a castellated head, and screw 2<1> adapted to be screwed into the member 2 and to clamp a conductor 9 in the manner shown in the Figures. The invention is shown applied to a push button switch having a movable contact member 10 and a fixed contact member 11 clamped to the casing 1 by the binding screws 2 and auxiliary screws 3.
Patent GB-740529-A (GB)
Title: Improvements in or relating to the pockets of wearing apparel
IPC: A41D27/20
Filed: 1954-01-21
Abstract: 740,529. Garment pockets. MEEK, J. Jan. 21, 1954, No. 1792/54. Class 141. To prevent breaking of the end attaching stitches at the mouth of a patch or other pocket, by the pressure of a hand inserted in the pocket, a curved or bent line of attaching stitches 14 is provided so that the pressure is not taken by the end stitch. The line of stitches 14 may be a closed or part circle or oval or a pair of straight portions connected by a curve.
Patent GB-560516-A (GB)
Title: Improved methods of making spark plugs
IPC: C04B41/50
Filed: 1943-02-03
Abstract: 560,516. Glazing. GENERAL MOTORS CORPORATION. Feb. 3, 1943, No. 1808. Convention date, Jan. 23, 1942. [Class 56] [Also in Group XXVII] In a method of making spark plugs an insulator 2 is coated with glaze-forming material, an electrode 26 placed in the insulator together with glass sealing material 20, 22 and a conductor 18, and the assembly then heated to mature the glaze and soften the sealing material. The spraying of the glaze may be effected through a nozzle while the insulator is mounted in a support 4 and the insulator heated to 100-150‹ C. to dry the glaze. While the insulator is hot a distinctive marking may be applied by marking material 6 directed from a nozzle past shields 12 and a mask 14. The glaze may have the following composition :-Frit A 31.8 per cent, Frit B 59.1 per cent, Clay 6.4 per cent and material sold under the Trade Mark " Opax " 27 per cent where Frit A has the percentage composition PbO 39.45, SiO2 33.27, B2O3 19.78, Al2O3 4.63 and Li2O 2.87 and Frit B consists of PbO 12, SiO2 42.61, B2O3 15, Na2O 5, CaO 3.0, ZnO 5.0, ZrO2 14.0 and F2 3.39. To this composition are added flocculating agents to give the desired viscosity. After spraying and marking, the insulator is fitted with the electrode 26 which may have a heat resistant shell 24 and core 26 bonded together by silver solder 28. Above the electrode is placed a conducting seal which may be formed of a powder 20 of borosilicate glass and a piece 22 of softer glass such as lead borosilicate glass. The insulator is fired at high temperature then heated to about 100‹ C., glazed and marked. Then the electrode, sealing material and conductor 18 which is roughened at 32 are positioned and the whole assembly heated to a temperature sufficient to melt the sealing material and mature the glaze. Preferably end pressure is applied so that the terminal conductor is forced past the upper sealing material. The electrode may have a slot 36 for gripping the material 20.
Patent GB-1124543-A (GB)
Title: Scraper-chain conveyor
IPC: E21C35/12
Filed: 1967-01-13
Abstract: 1,124,543. Mineral-mining machine haulage means. GEWERKSCHAFT EISENHUTTE WESTFALIA. 13 Jan., 1967 [17 Jan., 1966], No. 1871/67. Heading E1F. [Also in Division B8] In a coal-cutting mining machine the casing 5 of the discharge scraper-chain conveyer 2 is equipped with casing 6 so that there is provided passageways 11 and 12 through which the chain which propels the machine may pass, the machine being attached to the chain by bar 14. The casing 6 is detachable at 8 and the bottom 16, 17 of the conveyer is pivoted at 21 for easy removability.
Patent GB-284325-A (GB)
IPC: H02J11/00
Filed: 1928-01-20
Abstract: 284,325. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Jan. 28, 1927, [Convention date]. Drawings to Specification. Systems depending upon static transformers; supplying consuming devices.-A small transformer supplying a bell or other intermittent load is combined with a rectifier supplying a load such as storage battery charging. The rectifier is preferably of the static dry-metallic type and may be arranged for full or half-wave rectification. The bell or other intermittent load may be supplied by alternating, or direct, or rectified current and in the last case bv a separate circuit utilizing one half-wave, the other load using the remaining half. The rectifier elements may be structurally combined with the transformer or with a " plug device." Single-phase or polyphase supplies may be utilized.
Patent GB-1111874-A (GB)
Title: Process for the manufacture of pure 4,4-dihydroxydiarylalkanes
Inventor: MAXDORF WOLFGANG
IPC: C07C37/70
Filed: 1967-01-13
Abstract: 4,41-Dihydroxydiaryl alkanes produced by phenol/ketone condensations are purified by eluting the crude product at below 0 DEG  C. with a mixture of (a) an aromatic or halogenated hydrocarbon and from 3-30% based on the weight of (a) of (b) phenol or o, m or p-cresol or two or all of said cresols and recovering the 4,41-dihydroxydiaryl alkanes.  The elution is preferably carried out under a weak vacuum i.e. at a pressure of from 350 to 760 mm. Hg. Suitable aromatic hydrocarbons and halogenated hydrocarbons are benzene, toluene or xylene and ethylene chloride, 1,1,22-tetrachloroethane, trichloroethylene and chlorobenzene.
Patent GB-601659-A (GB)
Title: Improvements in or relating to temperature control systems
IPC: G05D23/275
Filed: 1944-02-03
Abstract: 601,659. Automatic temperature control systems. BRUSH DEVELOPMENT CO. Feb. 3, 1944, No. 1993. Convention date, Feb. 4, 1943. [Class 38 (iv)] [Also in Group XXXVI) In a temperature control system with an A.C. supply the operative current through a relay is controlled by connecting it to a thermostat constituted by at least two electrodes having' a dielectric material therebetween of the type displaying a dielectric " Curie point," whereby the capacity of the condenser constituted by the thermostat increases rapidly to a maximum as the temperature rises to a particular value and then decreases as the temperature is raised above that value. Rochelle salt is given as a particular example of a piezo-electric electric material which has also a dielectric Curie point. Fig. 1 shows a system comprising four parallel connected thermostats 1 located within different areas of a building and arranged in series with the secondary winding 3 of a transformer 5 and the actuating winding of a current responsive relay 7. The primary winding 13 of the transformer may be connected to an A.C. supply of the conventional commercial frequency, and the relay contacts 9 are connected in the control circuit of a device 11 which is fed from the A.C. supply and controls the heat source 15. The capacities of the thermostats 1 and the potentials applied thereto are chosen so that the relay 7 can be adjusted to operate in response to the current that flows when the average temperature of the thermostats reaches, exceeds, or falls below, a predetermined temperature in the neighbourhood of the upper Curie point for Rochelle salt, which is in the neighbourhood of 24‹ C. An inductance 17 may be included in series with the transformer secondary winding 3 and relay 7, so that series resonance is produced and augments the current increase when the capacity of the thermostats decreases to a specific value corresponding to a predetermined temperature. By utilizing potentials such that a potential gradient of the order of 300 volts per cm. obtains in the dielectric the resonance of the circuit produces a trigger effect which can be applied to a potential responsive relay 19 having a high impedance, connected across the thermostats 1. In this latter instance the relay 7 is redundant. Specification 454,595, [Group XL], is referred to. High frequency systems may be controlled in the manner described.
Patent GB-576348-A (GB)
Title: Box handle and latch
IPC: B65D5/46
Filed: 1944-02-03
Abstract: 576,348. Box handles. TROGMAN, W. Feb. 3, 1944, No. 2006. [Class 18] [Also in Group XXV] A box structure is held closed by means of projections 30, 31 which enter registering slots 23, 26 in the two box parts, a handle loop 20 engaging over a tongue 24 on one box part and passing through a slot 22 in the other part. The projections 30, 31 are bent over in opposite directions to constitute a closure, and a tongue 27 in the handle loop 20 is bent to form a smooth grip and stiffen the structure. The box is made from a one-piece blank folded as shown.
Patent GB-766413-A (GB)
Title: Improvements relating to electrolytic capacitors
IPC: H01G9/00
Filed: 1955-01-24
Abstract: 766,413. Anodizing tantalum; electrolytic capacitors. GENERAL ELECTRIC CO. Jan. 24, 1955 [Jan. 25, 1954], No. 2092/55. Drawings to Specification. Classes 37 and 41. A method of forming a dielectric film on a tantalum capacitor electrode comprises subjecting the electrode to a forming voltage in an electrolytic bath, then to an oxidizing atmosphere, e.g. air, at a temperature of 200‹ to 500‹ C., and lastly to a forming voltage in an electrolytic bath. The temperatures of the baths are preferably equal and between 85‹ and 200‹ C., e.g. 100‹ C. Each electrolytic treatment may comprise a single-stage or a two-stage process. If a single-stage, the bath may comprise 12 per cent ammonium borate, 58 per cent ethylene glycol and 30 per cent triethanolamine by weight, the mixture being heated until the ammonium borate is dissolved and heating continued until 60 per cent by weight of the mixture has evaporated. If a two-stage process is used, the mixture in the first stage thereof may comprise (by weight) 5 to 15 per cent water, 10 to 25 per cent ammonium borate and the balance ethylene glycol or diethylene glycol, the bath for the second stage being that described above for the single-stage process.
Patent GB-825086-A (GB)
Title: Transistor amplifiers
Inventor: MILNES ARTHUR GEORGE
IPC: H03F3/217
Filed: 1957-01-21
Abstract: 825,086. Phase-sense sensitive circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 21, 1958 [Jan. 21, 1957], No. 2094/57. Class 38 (4). A transistor power amplifier which responds to a sinusoidal input by delivering a pulse output whose fundamental component depends upon the amplitude of the sinusoidal input comprises two push-pull-connected transistors TS1, TS2 to which input signals are applied in antiphase from a transformer T2 and an alternating bias potential of twice the signal frequency is applied from transformer T1 via the rectifier bridge B3. In the circuit shown a further direct current bias is supplied by rectifier bridge B2 and capacitor 11 so that the emitter base potentials vary as shown at (b) and in the absence of an input signal the transistors remain permanently non-conductive. On the application of an input signal (c) of the same frequency and phase as the supply voltage, the transistors are rendered conductive in alternate half-cycles of the input signal and an output (d) is developed, the output pulses having sinusoidal tops as shown due to the collector-emitter bias being developed from an unsmoothed full-wave rectifier B1. The width of the output pulses increases with the amplitude of the input signal so that the magnitude of the fundamental component of the output depends upon the amplitude of the input. In a modified circuit, Fig. 2 (not shown), rectifier bridge B2 is omitted and rectifier bridge B3 reversed so that the bias waveform corresponds to (b) inverted with the cusps and zero potential. In this circuit also the resistor 13 is replaced by a capacitor, thus giving flat-topped output pulses.