baber/WOPTO huggingface dataset:
Patent GB-226162-A (GB)
Title: Method of and apparatus for filtering electric current
IPC: H02M1/14
Filed: 1924-08-22
Abstract: 226,162. Rader Appliance Co., Inc., (Assignees of Crouse, G. B.). Dec. 12, 1923, [Convention date]. Thermionic amplifiers and detectors.- Alternating components are eliminated from a direct current supply by causing the current to flow in parallel paths and connecting the load circuit across the paths at points of substantially equal alternating current potential but of unequal direct current potential. In one arrangement, Fig. 1, leads 9, 10, supplied with rectified current from an alternating-current source 1, 2, are connected together through one path comprising a condenser 12 and inductances 14, 15 and another path comprising a condenser 13 and inductances 16, 17, the four inductances being wound on a common core 18. The direct current supplying the load 21 is taken from points 19, 20 between the inductances, the circuits being preferably so arranged that these points have equal alternating potentials at a frequency twice that of the alternating-current supply. Slight differences of potential will remain for the higher harmonics, but these may be smoothed by connecting a condenser 23 in shunt, and an inductance 22 in series, with the load. In a modified arrangement, a demagnetizing winding, comprising a large number of turns connected in shunt across the leads 9, 10, is provided on the core 18 to prevert saturation of the core by the direct current flowing through the windings 15, 16. The application of the invention to a wireless receiving set, comprising radio-frequency amplifying valves 29, 30, a detector valve 33, and audio-frequency amplifying valves 37, 39, is shown in Fig. 4. The filaments of all the valves are connected in series and supplied with current from the terminals 19, 20 through a resistance 46, the filament of the detector valve 33 being shunted by a variable resistance 50. The various plate circuits are connected to the terminals 19, 20 in parallel, through an anti-resonant circuit 44, 45 tuned preferably to twice the frequency of the power supply. The plate voltage to the radio-frequency and detector valves is regulated by means of a resistance 47, which may be adjustable.
Patent GB-1314682-A (GB)
Title: Direct current arc power supply with stabilized feedback control
IPC: B23K9/10
Filed: 1970-04-24
Abstract: 1314682 Automatic control of arc welders CHEMETRON CORP 24 April 1970 [25 April 1969] 19917/70 Heading G3R A D.C. arc power supply for welding comprises a controllable power output circuit to an arc 7, a first summing means 9 which sums a reference signal and a feedback signal representative of the arc current, and a second summing means 12 which sums the output of the first summing means 9 with a feedback signal representative of the arc voltage. Fig.2 shows an arrangement in which the arc 7 is supplied via thyristors 22-24 which are connected in circuit with a transformer secondary 16. The arc current is sensed by a unit 11 comprising C.T.s 28, 29 connected to a current feedback unit 10. The unit 10 may be set to provide negative, zero, or positive feedback by means of a selected one of potentiometers 39, 39'. The feedback signal passes via a line 43 to one side of a potentiometer 56 in summing amplifier 9, the other side of the potentiometer being arranged to receive an adjustable reference signal from a potentiometer 62 or 62' which is used to set the desired arc voltage. The output from the amplifier 9 passes via a line 67 to one side of a potentiometer 73 in second summing amplifier 12, and the other side of the potentiometer 73 receives a voltage feedback signal via a line 13. The output of the amplifier 12 is fed via a line 27 to a firing unit 15 where it is used to determine the conduction of a uni-junction transistor 81. The output from the transistor 81 is used to trigger an auxiliary  thyristor 85, thus permitting a capacitor 83 to discharge into a resistor 86 and producing a steepfronted triggering pulse for main thyristors 22. Similar firing units 26', 26" control the thyristors 23, 24 respectively. The current feedback unit 10 includes a selfresetting arc current limit arrangement as in Specification 1314683, and the entire arrangement may be used with a dual welding torch control system as in Specification 1314684.
Patent GB-1148178-A (GB)
Title: Photographic materials
IPC: G03C1/95
Filed: 1966-05-05
Abstract: 1,148,178. Photographic silver halide material. EASTMAN KODAK CO. May 5, 1966 [May 5, 1965], No.19952/66. Heading G2C. A photographic material comprises a support bearing a hardened light-sensitive silver halide emulsion layer, the emulsion layer, an antiabrasion layer or an interlayer containing a synthetic surface active agent having an acid group and a substituted amino group, and the emulsion layer or a layer between it and the support containing water-insoluble solid inert particles having an average diameter between 7 and 15 microns, no more than 5% of the particles by weight having a diameter above 20 microns. Surface-active agents specified have the formulae:- wherein R and R 1  are aliphatic hydrogen radicals, R 2  is aliphatic hydrocarbon, phenyl or cycloalkyl R 3  is hydrocarbon, x is 1 or 2 and M is a cation. The inert particles may be of barium or calcium sulphate or carbonate, oxides of zinc, titanium, aluminium or magnesium, silica, glass, insoluble starch, cellulose esters or ethers, polyacrylates, polymethacrylates, polyvinyl acetate, polycarbonates, styrene polymers and copolymers, and hardened gelatine. The layers are hardened for example by formaldehyde and may also contain alkane diols and salts of maleopimaric acid. The emulsion layer may also contain quaternary ammonium, quaternary phosphonium and/or ternary sulphonium salts in addition to other additives. The materials are particularly suitable for rapid processing.
Patent GB-209708-A (GB)
Title: Improvements in cocoon dropping apparatus for use in silk reeling machines
IPC: D01B7/04
Filed: 1923-08-03
Abstract: 209,708. Kanegafuchi Boseki Kabushiki Kwaisha. Jan. 15, 1923, [Convention date]. Reeling-machines.-Cocoons are supplied to the basin of a silk reeling-machine from a magazine comprising a disc 5 provided with pockets 6 and rotated through a distance equal to the pitch of the pockets by ratchet gearing connected by levers and links 18, 19, 20 to a finger-key 21. The cocoons are placed in the pockets and the filaments thereof are connected to a stem 22. The key is operated as required and a cocoon, freed thereby from a guide plate 9, drops down a tube 8 into the basin, whereupon its filament is caught by the supplier 3 and united to the ends being reeled.
Patent GB-202302-A (GB)
IPC: D06M13/188
Filed: 1923-08-03
Abstract: 202,302. Eichengr³n, A. Aug. 10, 1922, [Convention date]. Water solutions of chemical compounds for proofing; wood, treating with liquids.-A solution of ammonium bromide and a difficultly volatilizable substance or substances such as ammonium salts of phosphoric, boric, lactic, &c. acids is used as a nrepMonng-agent. Materials impregnated with these compounds are placed on or near fires to be extinguished. Hygroscopic substances such as glycerine, glucose, lactic acid, &c. may be added to the solution. The Specification as open to inspection under Sect. 91 (3) (a), states also that a waterproof coating may be applied to the treated material. This subject-matter does not appear in the Specification as accepted.
Patent GB-745134-A (GB)
Title: Improvements in and relating to automatic washing machines
Inventor: BARNISH PHILIP
IPC: D06F33/02
Filed: 1952-08-08
Abstract: 745,134. Washing- and drying-machines. ENGLISH ELECTRIC CO., Ltd. July 31, 1953 [Aug. 8, 1952], No. 20019/52. Drawings to Specification. Class 138 (2). In an automatic washing-machine having a pump for supplying, circulating or draining liquid, and a valve in the path of liquid flow for controlling the flow, the pump and valve are operated automatically by a sequential control mechanism so arranged that it causes the liquid flow to be stopped or reduced during a period when the valve is being operated. The invention is applied to the machine described in Specification 745,133 in which a change-over valve is used, and the pump is driven by an electric motor which is switched off while the valve is being operated. An electromagnet is provided to operate the valve.
Patent GB-1001260-A (GB)
Title: Improvements relating to gas turbine engines
Inventor: PEARSON HARRY
IPC: F02C7/04
Filed: 1964-05-13
Abstract: 1,001,260. Gas turbine jet propulsion plant; axial flow compressors. ROLLS-ROYCE Ltd. May 13, 1964, No. 20020/64. Headings F1C, F1G and F1J. A gas turbine engine has a multi-stage compressor provided with inlet guide vanes and an air intake having an intake lip disposed forwardly of the first stage rotor blades of the compressor but not forwardly of the leading edges of the inlet guide vanes. A gas turbine jet propulsion by-pass engine 10 having a by-pass ratio of at least 1À5:1 has an outer casing 11 surrounding inlet guide vanes 16 and compressor rotor blades 13, 14. The intake lip 20 of casing 11 is radially aligned with the leading edges of guide vanes 16 or, as shown dotted, may be aligned with the mid-chord points or trailing edges. The construction reduces airflow breakaway at lip 20.
Patent GB-1060095-A (GB)
Title: Improvements relating to the flow of a cooling fluid
Inventor: COWLEY EDGAR GEORGE
IPC: F23R3/08
Filed: 1964-05-13
Abstract: 1, 060, 095. Gas turbine engine combustion chambers. ROLLS-ROYCE Ltd. May 6, 1965 [May 13, 1964], No.20022/64. Heading F1L A gas turbine engine combustion chamber comprises a flame tube formed of a series of tubular sections which overlap at their adjacent ends to provide annular passages through which cooling air may flow so as to provide a film of cooling air over the inner surface of the adjacent downstream section, a corrugated annular member being disposed in the annular passage between adjacent sections, the corrugated member having an inclined end face which extends to the wall of the downstream section which reduces the tendency for the film of cooling air to break away from the surface. In Fig. 2 portions of the adjacent flame tube sections are indicated at 14, 15 and the annular gap therebetween at 26, a corrugated spacer member 30 being disposed in the gap, the downstream end of the corrugated spacer being inclined with respect to the inner surface of the adjacent section as indicated at 33.
Patent GB-148155-A (GB)
Title: Improvements in lifting, lowering and hauling gear
IPC: B66D1/14
Filed: 1920-07-09
Abstract: 148,155. Ohnesorge, O. May 15, 1914, [Convention date]. Winches; driving-gear. - Winding or hauling gear for use in mines, rope railways &c. of the kind described in Specification 148,154 having epicyclic driving- gear for three sheaves, has the epicyclic gear arranged on a countershaft and driving two sheaves. The engine shaft 30 forms a countershaft of the winding gear and carries a planet-pinion carrier 39 which drives one sheave 47 through gearing 40 and shaft 46, and the other sheave 49 through gearing 48. The rope passes over the sheave 47 and thence over a reversing puiley (not shown) to the sheave 49. The sheaves may be of equal or unequal diameters.
Patent GB-1527635-A (GB)
Title: Switching device for the tdm selective switching of digital telecommunication paths
IPC: H04Q11/04
Filed: 1976-05-14
Abstract: 1527635 Automatic exchange systems DE STAAT DER NEDERLANDEN TE DEZEN VERTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE 14 May 1976 [22 May 1975] 20064/76 Heading H4K In a digital communication T.D.M. switching system separate holding stores are used to control separate go and return paths for each connection, each holding store is divided into two sections and means operates in the event of a fault in one section to reconstruct the data therein from data stored in the other section and the other holding store. As shown the network comprises six stores such as 5.1, 5.2 in which coded speech samples are intermediately stored until the time slot used on the wanted network outlet, an array of switching matrices 6 and group switches such as 7.1 and 7.2. Each intermediate store deals with a super-group of six highways. Each connection, between two subscribers a and b comprises incoming and outgoing end portions designated by the supergroups V, group or highway G and time slot T concerned. The intermediate stores and switches are addressed by cyclically operated shift register holding stores one for each incoming supergroup. Each holding store comprises two sections which store respectively in the time slot of the outgoing end portion of a path, the incoming group and time slot GT and the outgoing supergroup and group V<SP>u</SP>G<SP>u</SP> respectively of that path. These address portions each include a parity bit and the outgoing address portion V<SP>u</SP>G<SP>u</SP> also includes a busy/free bit. Each section also stores two fixed codes which enable the system to check that each section is circulating its addresses and that all-sections are in phase, it being possible under the control of comparators to stop any section and start it again in phase with the system clock. If an error is detected by a parity check on one or more rows of a section a square section can be switched in and the address portions G<SP>i</SP>T<SP>i</SP> or V<SP>u</SP>G<SP>u</SP> required therein can be determined from the other address portions V<SP>u</SP>G<SP>u</SP> or G<SP>i</SP>T<SP>i</SP> in the other section of the defective holding store and the addresses stored in the holding store used for the other path of the two way connection. The manner in which this information is retrieved by searching through the stored address and accessing translators which can translate for each subscriber between his incoming and outgoing address is detailed. In the case of certain types of fault alarms may be actuated.
Patent GB-245378-A (GB)
Title: Improvements in or relating to forcing frames or hothouses
IPC: A01G7/02
Filed: 1925-08-14
Abstract: 245,378. Vestergaard, T. M. Aug. 14, 1925. Germinating and propagating appliances; plants, treatment of growing.-In order that heat, moisture, and carbonic acid gas may be supplied to forcing-frames or hot-houses, a pit is constructed at one end to receive a stove, and channels communicating with the pit are made beneath the forcing-bed. The pit 1 containing the gasoline or other stove 3 is provided with concrete walls 2, an air tube 4, a water outlet 6, and two covers 7, 8. The air tube 4 leads to the bottom of the pit and is provided with a cowl 5 and damper 5<1>. The concrete channels 9 beneath the forcing-bed are inclined upward near the pit to prevent the escape of water introduced into them. Above the channels are rush or straw mats which support the manure 13 and earth 14 at a distance beneath the glazed frames 16. At the end opposite to the pit vertically adjustable outlet tubes 17 are provided for regulating the draught. These tubes may be fitted with cowls. The greater part of the heated air and the combustion gases, after becoming saturated with moisture in the channels, passes through the forcing-bed.
Patent GB-1434091-A (GB)
Title: Plant for burning or heat treatment of granular or pulverous material
IPC: B01J6/00
Filed: 1973-04-30
Abstract: 1434091 Preheating cement raw material F L SMIDTH & CO AS 30 April 1973 20463/73 Heading F4B A plant for burning or calcining granular or pulverulent material comprises a kiln, a cooler, and two preheating units with separate raw material and gas discharge openings, one of the preheaters receiving waste gas from the kiln and the other receiving part of the heated air from the cooler, the remainder of the heated air being utilized for combustion in the kiln, and the flows in the two preheater units being separately controllable. Part of the raw material for a rotary cement kiln 1 is fed at 29 to a series of cyclone preheaters 15-18 receiving waste gas from the kiln through a duct 9 which has a by-pass 32 for alkali removal to start up. A further part of the raw material is fed at 28 to cyclone preheaters 11-14 which are supplied with hot air from a duct 27 leading from a cooler. This air is further heated in a chamber 25 with a fuel supply 26, and material from cyclones 12, 15 is precalcined in the chamber 25 and final cyclone 11. Part of the air from the cooler is utilized in the kiln and the gas flows are regulated by separate fans 21, 22 leading from the preheaters 14, 18 to a common dust precipitator 23. In a modification, raw material is fed directly into the waste gas flow from the kiln to a cyclone, the gas from which is fed to the coolest of a series of cyclone preheaters heated by air from the cooler, the preheated material being fed to one of the other series of cyclones and being precalcined in a chamber supplied with fuel and air from the cooler. The gas flows through the single cyclone and the series of preheaters are controlled before they jam, and a single fan feeds the gases to a precipitator. Two series of preheaters and precalcining chambers fed from the cooler following a kiln may be combined with a single preheater series fed with waste gas from the kiln, the gas flows being separately controlled.
Patent GB-1162076-A (GB)
Title: Improvements in Women's Disposable Sanitary Head-Dress
Inventor: WAGENFELD GILBERT BERNARD
IPC: A42B1/04
Filed: 1968-04-30
Abstract: 1,162,076. Disposable head-dress. CELLUCAP MFG. CO. 30 April, 1968, No. 20504/68. Heading A3V. A disposable head-dress 20, Fig. 1, comprises a crown portion 21 and elasticated edges 23, 24, the crown portion being formed as a stack of pleats 25, Fig. 9, which are narrow compared with their length, and elastic cords 24 attached to each edge in a stretched condition and secured at each end of the stack by staples 37. A peak 22 is preferably secured to one edge and this peak has a score line 40 enabling it to be raised, Fig. 1. The fabric may be paper or cloth or a plastics material if the head-dress is used as a shower cap. The head-dress is made from a continuous web of material by pleating, securing stretched elastic cord to the edges of the outermost pleats, securing the cords and pleats together at predetermined intervals and then severing from the web to give a head-dress as above.
Patent GB-1303829-A (GB)
IPC: C07C5/32
Filed: 1970-04-29
Abstract: 1303829 Dehydrogenating hydrocarbons UNIVERSAL OIL PRODUCTS CO 29 April 1970 [12 May 1969] 20586/70 Heading C5E [Also in Division B1] A dehydrogenatable hydrocarbon is dehydrogenated at elevated temperature and elevated pressure in the presence of a catalyst which comprises alumina carrier material, from 0À01 to 5À0 weight per cent of lithium, from 0À01 to 1À0 weight per cent of rhenium and from 0À01 to 1À0 weight per cent of Group VIII noble metal selected from rhodium, ruthenium, palladium, osmium, iridium and platinum, the weight ratio (on an elemental basis) of rhenium to Group VIII noble metal preferably being from 0À05:1 to 2À75 : 1 and the total content (on an elemental basis) of the rhenium and Group VIII noble metal preferably being from 0À2 to 1À5 weight per cent. Exemplified dehydrogenatable hydrocarbons are aliphatic hydrocarbons having from 2 to 30 carbon atoms, for example ethane, propane, n-butane, isobutane, n-pentane, isopentane, n-hexane and 2-methylhexane; non- aromatic cyclic hydrocarbons and substituted derivatives thereof, for example cyclopentane, cyclohexane, methylcyclopentane and 1,3-dimethylcyclohexane; and alkylaromatic hydrocarbons wherein the alkyl group contains from 2 to 6 carbon atoms, for example ethylbenzene, n - butylbenzene, 1,3,5 - triethylbenzene, isopropylbenzene and ethylnaphthalene. Dehydrogenation may be effected in a batch-wise manner or continuously with the catalyst in the form of a fixed bed, moving bed or fluidized bed, optionally in the presence of hydrogen, for example in an amount to provide a hydrogen to hydrocarbon mole ratio of from 1 : 1 to 20 : 1, and under generally conventional reaction conditions which may include a temperature of from 371‹ to 677‹ C., a pressure of from 0À1 to 10 atmospheres gauge and a liquid hourly space velocity of from 1 to 40. Examples relate to the dehydrogenation, in the presence of hydrogen, of n-dodecane to provide n-dodecene (Example 1), of n-tetradecane to provide ntetradecene (Example 2), of n-butane to provide n-butene (Example 3), of ethylbenzene to provide styrene (Example 4), and of a mixture of C 10 -C 15  normal paraffins (two compositions specified) to provide a mixture of the corresponding normal mono-olefins (Examples 5, 6 and 7), the noble metal used in each case being platinum.
Patent GB-134410-A (GB)
Title: Improved Process for the Treatment of Effluent from Piece or like Scouring Processes.
IPC: C11D13/30
Filed: 1918-12-14
Abstract: 134,410. Distillates, Ltd., and Jarmain, G. G. Dec. 14, 1918. Soaps, recovering from waste wash liquors.- Effluent from piece goods scouring-machines is heated to boiling-point and then allowed to cool. The soap may then separate at once, or after centrifuging and filtering. If not, the liquor is further concentrated by boiling. The separated soap may be treated with acid in order to liberate the fatty acid.
Patent GB-1060979-A (GB)
Title: Sectional electrical connector
IPC: H01R9/24
Filed: 1964-05-20
Abstract: 1,060,979. Two-part couplings; couplings; terminal blocks. BUCHANAN ELECTRICAL PRODUCTS CORPORATION. May 28, 1964 [June 17, 1963], No. 20880/64. Heading H2E. In a block of connector elements, for connecting a series of electrical conductors to a strip of terminals 14, each connector element comprises a body 34 of hard resilient insulating material, such as nylon, and a contact 50 having a terminal 54 and a projecting pin 58, and is formed integrally with a key 62 and a key slot 64, by which elements can be joined together in a row. The contact is held within the body 34 by a tongue 60, Fig. 2 (not shown), punched from the pin 58 and in order to restrict movement of the individual connector elements after assembly, they are provided with mating depressions 66 and projections 68. Each terminal 14 of the terminal strip has a clamping screw 20 for engagement with the pin 58 of the corresponding connector element, and a terminal screw 18 for a conductor 16.
Patent GB-1291894-A (GB)
Title: Reciprocatory refrigerant compressors
Inventor: ADOLPHUS BRYAN MALCOLM
IPC: F04B39/12
Filed: 1970-04-30
Abstract: 1291894 Reciprocating compressors GENERAL MOTORS Ltd 22 April 1971 [30 April 1970] 20910/70 Heading F1N A reciprocating compressor has a detachable cylinder head 3 which has, formed in one piece therewith, a valve plate having concentric inlet and outlet ports 43, 39. The inlet ports 43 communicate with a suction chamber 45 partially surrounding a delivery chamber and separated therefrom by a wall 47. Discharge into the delivery chamber 45 is controlled by annular plate valves 67 urged towards the closed position by springs 71. The springs 71 react against a shoulder 73 on a cylindrical guide 69 held in position by a screw 65 which passes through a central hole in the valve plate. A head 63 on the screw 65 positions an annular flexible inlet plate valve (59) over the inlet ports 43.
Patent GB-1211715-A (GB)
Title: Structural frames
Inventor: PERRY EDWARD DEWOLF
IPC: E04B1/21
Filed: 1967-11-28
Abstract: 1,211,715. Building framework joint. BALTIMORE CONCRETE PLANK CORP and E. D. PERRY [trading as DYNA STRUCTURES]. 28 Nov., 1967, No. 20966/70. Divided out at 1,211,714. Heading E1W. A gasket 50, intended for use between the upper end of a column 12 and a beam 14 to be supported thereon, for the purpose of defining a space for the reception of material 66 for forming a bearing pad comprised for example by a curable resin such as epoxy resin, is provided with conduit means providing fluid communication between the interior and exterior surfaces, of the gasket to facilitate escape of air from the defined space.