baber/WOPTO huggingface dataset:
Patent GB-1061989-A (GB)
Title: Improvements in or relating to steel production
IPC: C21C5/04
Filed: 1963-12-03
Abstract: Steel is produced by semi-refining crude iron e.g. containing 0.8 to 4% P in a ladle or tapping crucible by oxygen blowing, under-pouring the semi-refined iron to separate it from the slag and then refining it together with molten scrap in an open hearth e.g. Siemens-Martin furnace. Semi-refining may be by a lime dust/oxygen top blowing method to produce an iron containing 0.8-2.5% C, 0-0.3% Mn, 0.1-0.4% P, balance Fe.
Patent GB-1077730-A (GB)
Title: Tufting machine having vertically adjustable needle plate
IPC: D05C15/14
Filed: 1965-11-15
Abstract: In a machine for producing cut or loop pile fabrics the work-supporting plate is adjustable vertically to vary the depth of pile.  The plate is supported on a bracket (74, Fig. 2, not shown) having racks (84) fixed thereto and engaging gears on a manually rotatable shaft (66).  The needles may be adjusted vertically to clear the raised backing.  An indicator (98) records the amount of the elevation of the plate.
Patent GB-1192055-A (GB)
Title: Digital Transmision System
Inventor: LENDER ADAM
IPC: H04L25/497
Filed: 1967-10-24
Abstract: 1,192,055. Digital transmission systems. AUTOMATIC ELECTRIC LABORATORIES Inc. 24 Oct., 1967 [31 Oct., 1966], No. 48331/67. Heading H4P. Binary data at a bit rate b is converted to a signal comprising a number of pairs of orthogonal duobinary signals at a lower bit rate for transmission over a limited bandwidth channel. In one embodiment, Fig. 2, binary input data is fed to gates 51, 52 which include inverters 53, 57 and which feed 2-bit shift register 56. The serial output of register 56 is fed back to gates 51, 52, the gates also receiving bit-rate clock pulses C. The register gives two parallel outputs A, B, each output signal having a rate b/2 and adjacent bits correlated. Signals A, B, are gated at 61, 62 with clock pulses #1 # 2  phase displaced by (2n + 1)/8 bit periods and of rate b/2. Gates 61, 62 feed bistables 63, 64 connected to differentiators 65, 66 whose outputs are summed, together with a clock signal # 3 , also of rate b/2 but phase displaced by (2n + 1)/16 bit periods from # 1 . The summer output provides the required two orthogonal duobinary signals in quadrature, each signal having a rate b/2, i.e. the combined signals have a rate b/4. In a second embodiment, Fig. 5 (not shown), the register of Fig. 2 is replaced by a 4-bit register. The register feeds two pairs of channels each substantially as described with reference to Fig. 2, but with differently phased clock pulses of rate b/4. The channel outputs are combined to give a signal for transmission comprising two orthogonal duobinary signals in each of two frequency bands, the total bandwidth being the same as that in Fig. 2. The receiver for use with the transmitter of Fig. 2 is shown in Fig. 4 and reproduces the original binary data. That for use with Fig. 5, transmitter comprises two channels, each substantially as shown in Fig. 4, feeding a 4-bit register.
Patent GB-973061-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B1/50
Filed: 1962-12-21
Abstract: The invention comprises dyes of the formula <FORM:0973061/C4-C5/1> wherein R and R1 are both hydrogen or are both the same alkyl radicals of up to 6 carbon atoms, X is hydrogen or a sulphonic acid group and R2 is hydrogen, halogen, phenyl or an alkyl radical of up to 6 carbon atoms which may also be substituted by phenyl, or instead of R2 the thiophene ring may contain a benzene ring fused in the 2:3-position, and the chlorination and bromination products of such dyes.  The dyes are made by reacting a boric acid ester of 1:5 - dihydroxy - 4:8 - diamino - anthraquinone - 2:6-disulphonic acid or of a 1:5-dihydroxy-4:8 - di - (monoalkylamino) - anthraquinone-2:6-disulphonic acid in the presence of sulphuric acid with an appropriate thiophene, the sulphonic acid group split off if desired, for example by heating with sodium dithionite, and if desired chlorinating or brominating the product.  Examples are given. The dyes having a sulphonic acid group dye wool, the others dye cellulose acetate, polyamide and polyester fibres in blue to blue-green shades.
Patent GB-1116076-A (GB)
Title: Magnetic tape recording and playback system
IPC: H04N5/783
Filed: 1965-11-16
Abstract: 1,116,076. Recording and playback apparatus. SONY CORPORATION. 16 Nov., 1965 [16 Nov., 1964 (2)], No. 48580/65. Heading G5R. The system described is similar to that disclosed in Specification 1,116,075 but only a single synchronizing pulse generator is provided which is switched off during playback of still pictures. The axial spacing of the video transducer heads may be adjusted to be slightly less than that employed in the above-mentioned Specification to reduce beat noise.
Patent GB-973529-A (GB)
Title: Improvements in or relating to conduit means
IPC: G21C11/02
Filed: 1962-12-28
Abstract: 973, 529. Reactors. GESELLSCHAFT FUR LINDE'S EISMASCHINEN A.G. Dec. 28, 1962 [Jan. 4, 1962], No. 48757/62. Drawings to Specification. Heading G6C. The shielding of a nuclear reactor is provided with channels for the flow of fluids to and from the reactor, in which the passage of radiation from the reactor to the exterior is prevented by radiation absorbing bodies in the channel. The channel may have an enlarged portion loosely packed with lead balls to effect radiation absorption without preventing the fluid flow. A coaxial pipe may be used in which radio-active gas is conveyed from the reactor by the inner tube and decontaminated gas returns through the outer pipe. Specification 900,953 is referred to.
Patent GB-1212620-A (GB)
Title: Electrode for discharge treatment of plastics
Inventor: DELANEY JOHN T JR
IPC: B26F1/28
Filed: 1968-10-15
Abstract: 1,212,620. Discharge treatment of plastics.ETHYL CORP. 15 Oct., 1968, No. 48780/68. Heading H1X. An electrode for use in apparatus for the treatment of plastics material comprises a tubular member 21 and a cylindrical member 29 in slidable engagement within one end of the tubular member so that the overall length of the electrode may be adjusted, the members being provided with means whereby they may be fixedly positioned relative to one another, and being provided with ridges 22, 30 on their outer surfaces such that the electrode as a whole is of substantially constant external contour along its length. Aluminium tubes 29 sliding in the ends of an aluminium tube 21 are fixed in position by thumb-screws engaging threaded openings 26 in pairs of lugs 25 secured at the opposite sides of seats in the ends of tube 21. The ridges 22 are provided by a helica<SP>1</SP> screw thread, and the ridges 30 are provided by helical springs anchored at their ends to the tubes 29 and 21 by clamps 31. The electrode is supported by members 19 in an apparatus (Fig. 1, not shown) comprising an earthed rotatable cylindrical electrode over which the plastics film to be treated is passed. The members 19 are threaded to enable the spacing between the electrodes to be adjusted. The rotatable electrode may have a dielectric covering. A modified electrode (Fig. 4, not shown) comprises a central spring-covered tube sliding in the ends of two outer threaded tubes.
Patent GB-1390129-A (GB)
Title: Chloro-polyalkam nitro-esters
IPC: C08G61/06
Filed: 1972-10-24
Abstract: 1390129 Chloro-polyalkamer nitro-esters MONTECATINI EDISON SpA 24 Oct 1972 [26 Oct 1971] 48868/72 Heading C3P Polymers containing repeating units of formulae and/or in which n is an integer of 2-10 and one of R and R<SP>1</SP> is Cl, the other being -O-NO 2 , are prepared by reacting an unsaturated polymer in an organic solvent with a mixture of (i) tert.- butyl hypochlorite and (ii) aqueous nitric acid of not more than 85% concentration. In the examples, the starting polymers are cis-1,4- polybutadiene, mainly trans-polypentenamer and mainly trans-polydodecamer.
Patent GB-1016348-A (GB)
Title: Improvements relating to fluid logic devices
IPC: F15C1/14
Filed: 1964-12-02
Abstract: 1,016,348. Regulating fluid flow. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 2, 1964 [Dec. 16, 1963], No. 48894/64. Heading G3H. A fluid OR-gate comprises a chamber 17 having a set of input channels 12-16, an output channel 25 and two exhaust channels 30, 32 located between the ends of input channels and the output channel and connected to a source of low pressure equal to the ambient pressure in the input channels. When a pressure signal is applied to either of the outer input channels 12 or 16 it has been found that the exhaust channels prevent turbulence and back pressure in the chamber 17 and the stream energy at the outlet is increased relative to an arrangement without these exhaust channels. When the pressure signal is fed to either of channels 13, 14 or 15, the adjacent outer input channel acts in the manner of the exhaust passages as above. The output channel may be connected to a control nozzle of a fluid amplifier.
Patent GB-1468054-A (GB)
Title: Tanning composition and process
IPC: C14C3/04
Filed: 1974-11-13
Abstract: 1468054 Arsenic trioxide tanning INTERNATIONAL TANNING CHEMIE ESTABLISHMENT 13 Nov 1974 49111/74 Heading C6C Tanning compositions in the form of pastes comprise arsenic trioxide; a polar solvent e.g.  methanol; a liquid organic cleanser e.g. kerosene and ground asbestos together with a salt of carbonic acid selected from sodium and potassium carbonates and bicarbonates. The composition may also contain a colouring material and/or an anti-bacterial agent such as sodium pentachlorophenol. Skins are tanned by placing a thin layer of the above tanning composition on the flesh side of the skin, allowing the composition to remain upon the skin until dry and removing the dried composition by rubbing with an abrasive such as sandpaper. The tanned skin may be further treated by rubbing oil on the tanned surface.
Patent GB-1078982-A (GB)
Title: Brush construction
IPC: A46B7/08
Filed: 1965-03-23
Abstract: 1,078,982. Brushes. OSBORN MANUFACTURING CO. March 23, 1965 [Jan. 11, 1965], No. 49163/66. Divided out of 1,078,981. Heading A4K. A crimped wire or like brush comprises several bundles of brush material received in a hollow receptacle back and protruding therefrom, each bundle having an encircling band (15, 22) in the region within the back with the outer edges of the bands being engaged by the back to hold them firmly in position. The upper edge of the back may be inturned or indentations may be formed in the sides of the back to secure the bundle in the back. An epoxy resin cement may be provided in the bottom of the back to hold the ends of the brush material. End brushes, strip brushes and wheel brushes may be formed in this way. The brush material may comprise hard straight plastic beaded wire, plastic coated wire, tampico fibre or plastic monofilaments such as nylon.
Patent GB-1481518-A (GB)
Title: Power supply and line deflection circuit for television receivers
IPC: H04N3/16
Filed: 1973-10-23
Abstract: 1481518 D.C.-D.C. converting RCA CORPORATION 18 Oct 1974 [23 Oct 1973] 49217/73 Heading H2F [Also in Division H3] In or for a TV receiver, a mains-isolated power supply and line deflection circuit comprises a rectifier 203 coupled to the A.C. mains terminal without a transformer and feeding a smoothing circuit 204 ... 206 which supplies D.C. to a line deflection circuit of the type comprising a bidirectional trace switching device 221, 223 coupled via isolating windings of deflection transformer 230 to a bi-directional retrace switching device 209, 210 coupled to the output of rectifier 203. At least one secondary winding on the line deflection transformer 230 may provide D.C. supply for the rest of the receiver with respect to a reference potential (e.g. ground) isolated from the A.C. mains. As described, a small mains transformer 265 with rectifier 268 provides D.C. for the horizontal oscillator 275 the output of which is coupled via a further isolating transformer 280 to the retrace SCR 209 and directly to the trace SCR 221. At the beginning of each line, trace damper diode 223 is forward biased by the energy stored in line deflection windings 252 at the end of the previous retrace interval. Capacitor 225 and S-shaping capacitor 251 are charged via diode 223. At approximately midway through the line interval, diode 223 becomes reverse biased and SCR 221, previously gated by the horizontal oscillator 275, becomes conductive, reversing the current in windings 230 and in the deflection coils 252. Shortly before the beginning of the retrace interval, SCR 209 is turned on so that capacitor 214 discharges through windings 212 and 230a, the voltage across 230c reverse biasing SCR 221 and causing current to flow in diode 223. Diode 223 then becomes reverse biased and after a further oscillation, the fly-back is terminated by further conduction of diode 223, initiating the next line interval. Inductor 212 may be replaced by the leakage inductance of transformer 230. The fly-back pulses across winding 230b are rectified by a multiplier 260 to provide EHT for the anode of the cathode-ray tube. Trace waveforms across capacitor 246 and across winding 230d are available for supplying other parts of the receiver. In Fig. 1 (not shown) SCR 221 and diode 223 are connected on the primary side of the deflection transformer 230, SCR 221 being triggered by a winding coupled to inductor 208.
Patent GB-1024460-A (GB)
Title: Improvements relating to character recognition equipment
IPC: G06K9/68
Filed: 1964-12-04
Abstract: 1,024,460. Automatic character reading. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 4, 1964 [Dec. 18, 1963], No. 49363/64. Heading G4R. In a character reader the character is scanned by a bank of magnetic sensing heads and the number of black signals occurring in each of a series of time intervals is counted, the successive counts being used to reset character triggers relating to characters which ought not to produce those particular counts at those times. In effect the character is divided into seven columns and the number of blacks counted in each column. The character 12, printed in magnetic ink, is A.C. energized at 14 and sensed by a bank of twenty heads 16. The twenty outputs are reduced to ten at 20 by interconnection in pairs in two groups of ten. The signals are then amplified at 22, rectified and clipped at 24, smoothed at 26, integrated at 28 and used to set triggers 30 all as described in Specification 953,442. The outputs of the ten triggers are sampled rapidly in succession during each of the seven columns by a group of AND gates 32 enabled in turn by signals derived from a counting ring 34 started during each column period by a signal from the column counter. A signal from a photo-cell 15 indicating that the document is present is also necessary before the sampling can take place. The black signals are applied as a series of pulses to a 3-stage binary counter 36, the output being converted at 36 to a marking on an appropriate one of eight heads. The successive counts are applied to a number of groups of AND gates 38 each group being enabled in a particular column period by a signal from the column counter. The outputs of the AND gates pass to negative character logic statements 42 which are OR gates, one for each character, connecting selected outputs to reset the trigger corresponding to that character in register 44. The trigger corresponding to each particular character is initially set but is reset whenever a count appears in any character column which is inappropriate to that character. Thus for character " 0 ", which has a square shape in this fount, the seven counts should be 7, 2, 2, 2, 2, 2, 7. If, in any column, counts appear which are substantially different from the ideal the " 0 " trigger is reset. If it remains reset at the end of the reading operation an " 0 " is indicated as the character read.
Patent GB-1520780-A (GB)
Title: Apparatus for cooling power cables
IPC: H02G15/26
Filed: 1975-12-02
Abstract: 1520780 Cooling underground cables HYDRO-QUEBEC 2 Dec 1975 49444/75 Heading H2C At least one chamber 18 containing a volatile liquid encloses underground cables for cooling purposes. The liquid is volatized by heat from the cable and passes to a heat exchanger 26 where it is condensed and runs back into the cable enclosure. The cables 10 are positioned in an oil-filled steel pipe 12, the pipe 12 having a layer of porous material, e.g. untreated glass fibre whereby the volatile liquid is distributed over the surface of the pipe. Each chamber 18 may be inclined and the heat exchanger connected at the highest end. The heat exchanger may be incorporated in a lamp standard, Figs. 3 to 7 not shown. The volatile liquid may be ammonia, propane, fluorocarbon refrigerant or water.
Patent GB-1476150-A (GB)
Title: Transistor bridge-rectifier circuit
IPC: H02M7/12
Filed: 1974-11-15
Abstract: 1476150 Transistor rectifying circuit GENERAL ELECTRIC CO 15 Nov 1974 [15 Nov 1973] 49517/74 Heading H2F A full-wave rectifier comprises a bridge of four transistors and four diodes, connected substantially as shown, having the primary of at least one transformer 16 connected in series with the A.C. supply terminals 12, 14, secondary windings of the transformer(s) being arranged to control conduction of the transistors alternately in pairs. The transistors are used in an inverted manner so that voltage blocking is performed by the collector-base junction. As described, during a positive half cycle at 12, current initially flows via primary winding P, diode D1, load R, diode D2 and back to the A.C. input terminal 14. This current provides signals in windings S1, S2 which turn on transistors Q1 and Q2, the lower collector-emitter voltages of which bypass the diodes D1, D2. At the beginning of the next half cycle of the supply from transformer T1 the direction of current in winding P reverses so that the pair of transistors Q1, Q2 are turned off and Q3, Q4 are turned on. In Fig. 2 (not shown) transformer 16 is replaced by a pair of transformers, one supplying transistors Q1, Q3 and the other supplying Q2, Q4. In Fig. 3 (not shown) transformer 16 is replaced by a pair of transformers respectively supplying the other two pairs of transistors. The circuit is applicable to integration on a silicon chip.
Patent GB-1286670-A (GB)
Title: Apparatus for gas separation
Inventor: LANGLEY ROBERT CHARLES
IPC: B01D53/22
Filed: 1969-10-08
Abstract: 1286670 Gas diffusion barriers ENGELHARD MINERALS & CHEMICALS CORP 8 Oct 1969 49530/69 Addition to 1125110 Heading B1L [Also in Division C1] An assembly for separating gases by diffusion, e.g. H 2  from other gases, comprises at least one centrally bored ceramic, laminated monolithic plate 15 having an inner layer (30), Fig. 2a (not shown) of coarse porosity adhered to an outer layer (31) which has at least some portions extending across the thickness thereof of fine porosity, the remainder (if any) of the outer layer (31) being of non porous material. The plates are coated with a non-porous hydrogen permeable material 20, e.g. palladium or an alloy thereof, at least on those parts which are porous to the gas being perforated. An axial bore 18 provides a hydrogen exit and has a gas impervious cap 19 at the other end. Spacing elements 17 may be as shown or in the form of integral central hubs, Fig. 2b (not shown). The fine porosity layer may also extend over the edge surface of the plates 15 as also may the palladium layer 20. Annular regions of dense non-porous ceramic may be provided at any position in the plates and may be of the same thickness, e.g. around the bore 18 or the circumference. These regions may be provided with gas holes (42), Fig. 4 (not shown), to direct the gas flow over the surfaces of the plates. The ceramic material comprises from 50-90% by weight of alkali aluminium silicates, 10-50% clay, 0-10% silica and may have 2-50% of glaze. The porosity is controlled by adding filler materials which are removed by combustion during firing, e.g. wood powder, finely divided plastics or carbon powder. In the preparation of the plates the silicate, clay, carbon and glaze are mixed and glycerin or water added with a binder, e.g. poly vinyl alcohol, methyl cellulose, acrylic resin or polyethylene glycol. An emulsion of microcrystalline wax may be used as a binder and lubricant.
Patent GB-1474940-A (GB)
Title: Sheet feed apparatus
IPC: B65H7/10
Filed: 1974-11-18
Abstract: 1474940 Feeding and ordering sheets INTERNATIONAL BUSINESS MACHINES CORP 18 Nov 1974 [26 Dec 1973] 49782/74 Heading B8R Sheets advanced from a bin 10 are arrested when their leading edges strike a sensor 69 and further advancement is commenced a set period of time after the start of the sheet advance cycle. Sheet stacking: The apparatus serves a photocopying machine and sheets advanced from the bin by friction rollers 50 are returned to the bin after imaging on one side by a pivotable device 40 which projects the sheets beneath guide 26 and retard roller 23. The sheets are arrested by a backstop 17 angled to skew the sheet relative to its direction of advance. Rebound from the back stop is prevented by the roller 23. A feeler 29 detects when sheets are present in the bin. Device 40 may be moved to a position where it directs a sheet out of the apparatus. Sheet separating: The separator rollers 50 are carried on arms 51 which permit the rollers to be withdrawn from the pile when sheets are being stacked therein. Simultaneously with the commencement of feed action of the rollers 50 a timing wheel is started. Arrival of the forwarded sheet at sensor 69 disables the separator rollers 50 and a forwarding roller 71 which co-operates with a friction pad 72. After a set period the timing wheel re-starts the rollers to forward the sheet to rollers 78 and 79. Any additionally-fed sheets are held back by the pad 72. Subsequently the rollers 50 and 71 are again stopped until the commencement of a fresh feed cycle. Sheet forwarding The sheets are fed between guides 88 and 89 by skewed rollers 84 which align them against guide 18. The arrival of the leading edge at a sensor 90 within a set time from its release from the sensor 69 confirms correct feed.
Patent GB-1175757-A (GB)
Title: Rear Loading Panel Lamps and a Method of Basing the Same
Inventor: FENTINAN DENIS RICHARD
IPC: H01R33/09
Filed: 1967-11-02
Abstract: 1,175,757. Two-part couplings. D. R. FENTIMAN. 2 Nov., 1967, No. 49785/67. Heading H2E. [Also in Division H1] A lamp for insertion in an aperture in a panel from the rear consists of an envelope 4 containing a filament 6 connected to lead-in wires 8 having spring terminal connectors 12 secured thereto and a base of thermoplastic material, Fig. 2 (not shown), moulded to the lamp and having an opening exposing part of the connectors so that these can be bent to contact a printed circuit on the panel on which the lamp is mounted. In moulding the base on to the lamp, the assembly of envelope and connectors is inserted in a mould having a resilient portion to hold the lamp and recesses to leave the upper parts of the connectors uncovered.
Patent GB-1195309-A (GB)
Title: Quenching Apparatus for Use with Thermal Cracking Systems
IPC: F28F9/00
Filed: 1968-10-21
Abstract: 1,195,309. Quenching cracked hydrocarbons. IDEMITSU PETROCHEMICAL CO. Ltd. 21 Oct., 1968 [29 Nov., 1967], No. 49790/68. Heading C5E. [Also in Division F4] Quenching apparatus for cooling gas effluents (cracked hydrocarbons) from a thermal cracking furnace 1 wherein raw material hydrocarbons are fed together with water vapour through a supply pipe 3 and heated to a temperature between 750 and 950 C. incorporates a header 11 for distributing the gas effluents to the cooling tubes 9 of a heat exchanger 10. The header 11 comprises a series of concentrically disposed frusto-conical members 12 spaced apart by struts 13 to define an assembly of annular channels. The conical members 12 are made from heat-resistant steel sheet.