baber/WOPTO huggingface dataset:
Patent GB-1523030-A (GB)
Title: Method of electrolytically treating a surface of an aluminum or aluminium alloy
IPC: C25D11/12
Filed: 1976-11-04
Abstract: 1523030 Electrolytic graining, anodizing, colouring of aluminium HOKUSEI ALUMINIUM CO Ltd 4 Nov 1976 [13 Nov 1975 12 March 1976] 45975/76 Heading C7B An Al or Al alloy surface is treated by A.C. (10 to 80 volts) electrolysis in an aqueous bath solution having a specific conductance of 1 to 100 m mks/ cm and containing 0À01 to 0À5 mol/l of at least one hydroxide or salt of alkali or alkaline earth metal, e.g. NaOH, KOH, Ba(OH)2, Ca(OH)2, or borate, sulphate, silicate, oxalate, citrate, tartrate, acetate, carbonate, phosphate, sulphamate, chromate, formate, propionate, glyconate, glycolate, tungstate, selenite or phosphomolybdate of Na, Li, K, Ca or Ba, and preferably 0À01 to 0À5 mol/l of at least one substance forming a barrier-type layer selected from inorganic and organic acids and ammonium salts of weak acids, to form a layer having a grainlike pattern on the surfaces. The substance forming a barrier-type layer may be boric, citric, tartaric, phthalic, malonic, maleic, adipic, itaconic, sulphonic, sulphosalicylic, succinic, butyric, lactic and malic acid, and ammonium tartrate, citrate, acetate, borate, silicate and carbonate. To obtain a knotty grain-like pattern, the electrolyte may be fitted or an ultrasonic wave may be applied. The counter-electrode used may be a stainless steel, Pt or carbon plate. The grain-like pattern may be further coloured by A.C. electrolysis in a bath containing an inorganic metal salt or by immersion in a bath containing an inorganic metal salt, a dye or a pigment; preferably after anodizing in a bath containing a substance forming a duplex-type porous layer, e.g. sulphuric and/or oxalic acid, using A.C. and/or D.C.; the counter-electrode may be Al, Pb or C. Prior to anodizing the grained Al may be immersed in NaOH or Na 2 CO 3  solution. Electrolytic colouring may be carried out in a bath containing SnSO 4 , NiSO 4  (or acetate) or CuSO 4 , (NH 4 ) 2 SO 4  and citric, sulphosalicylic and boric, or sulphuric or sulphonic acid respectively; or colouring may be effected by immersion in ammonium ferric oxalate or AgSO 4  solution, prior to treatment with boiling water. The coloured surface may be electro-phoretically painted or dip or spray coated with an acrylic clear lacquer.
Patent GB-1092623-A (GB)
Title: Lighting apparatus
IPC: F21S8/00
Filed: 1964-11-11
Abstract: 1,092,623. Street and like lamps. I. GOODBAR. Nov. 11, 1964 [Nov. 15, 1963], No. 46027/64. Heading F4R. A street lighting device is constructed to produce a shielded region extending downwards from the horizontal into which no light is cast when the device is dry and is provided with a trough having light transmitting walls, one at least of which is prismatic, to collect rainwater so as to refract the light into the shielded region when the trough contains rainwater. The device consists of a light source 5 mounted within an opaque internally reflecting hood 4 so that no light falls directly or is reflected into the region above the line joining the edge of the hood to the lowest point 7 of the source. A trough 9 having light transmitting transparent prismatic walls 10, 11 and an opaque base 15 is mounted around the edge of the hood to catch rainwater falling on the hood 4 so that in the absence of rainwater, the light falling on the edge of the trough is refracted upwards as at 12<SP>11</SP> but when there is rainwater in the trough, the light emerges from the end of the trough as at 14<SP>1</SP>. The walls 10, 11 may be formed by single prisms or stepped prisms. Means may be provided to allow water to drain from the trough.
Patent GB-1080648-A (GB)
Title: A process for producing a body of foamed polyurethane resin
IPC: B29B7/40
Filed: 1964-11-13
Abstract: 1,080,648. Injection moulding. G. BORGHI. Nov. 13, 1964 [Nov. 14, 1963], No. 46244/64. Heading B5A. In a process of injection moulding articles of a foamed synthetic resin, e.g. polyurethane, a mixing and injecting head 1 is cleaned and scavenged by a halogenated hydrocarbon compatible with the constituents of the injected mixture. The residues may form the final portion of the injected charge or the initial portion of the next charge, thus preventing waste of material. As shown, components A, B are fed from storage tanks 2, 3 by pumps 6, 12 respectively through heaters 7, 13 to the mixing head 1. Component A may be a prepolymer and component B a polyether or polyester with or without one or more halogenated hydrocarbons. The scavenging agent is contained in a tank 4 and is propelled into the head 1 by a nitrogen bottle 19. A row of moulds (not shown) may be fed beneath the head 1 on a belt conveyer. The process may be used for producing the thermal insulation of refrigerator casings.
Patent GB-1147050-A (GB)
Title: Transmitting and receiving communications terminal
IPC: H04L17/00
Filed: 1966-10-17
Abstract: 1,147,050. Data transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 17 Oct., 1966 [17 Nov., 1965], No. 46273/66. Heading H4P. A keyboard transceiver comprises a printer which prints in response to each key operated and is selectably able to monitor the data generated by the keyboard or to record received data. The transmitter keyboard feeds the output channel via a store. When a key 9 is pressed the corresponding character is printed and certain of switches 11 are closed to provide a 6-bit signal and a parity check bit. The timing mechanism of the printer also operates strobe 13 which provides a pulse which gates the 7-bit signal in to store 3. When there is a character in store 3 unit 15 starts clock 1, the clock gating the character from store 3 to store 5 from which it is read out serially for transmission. If switch 17 is closed the content of store 3 is gated also to store 19 which controls printer drive 21 so that the character is printed again. This operation causes the 7-bit signal to be set in store 3 again, and the cycle repeats until switch 17 is reopened. Thus switch 17 acts as a repeat key causing repeated transmission of a signal from store 5 and repeated printing. For test purposes the transmitter output is grounded, visual inspection of the repeatedly printed characters revealing errors. In receive mode the received signals are fed to store 3 and pass via store 19 to the printer drive 21.
Patent GB-1202755-A (GB)
Title: Electrical equipment chassis
Inventor: STONE DENNIS
IPC: H05K7/14
Filed: 1968-10-02
Abstract: 1,202,755. Mounting electrical equipment. STANDARD TELEPHONES & CABLES Ltd. 2 Oct., 1968, No. 46706/68. Heading H1R. For ease of servicing, printed circuit boards are mounted in a framework made up of two sections releasably connected together to form a rigid structure, the printed circuit boards extending between the two sections and being permanently secured to a mounting on one section and disengageably mounted on the other section. As shown in Fig. 1 each section 10, 20 of the framework is formed from a printed circuit panel 11 or 22 and a metal panel 12 or 21 joined together to each form an L-shaped section at 23. The framework is releasably joined together by fastenings 13. Support members for the printed circuit boards are mounted on printed circuit panels 21, 22 and comprise a plastic moulding with bearing surface 31 and groove 32, Fig. 2, the moulding being mounted by means of holes 331, 332 on the panels. A printed circuit board is secured at one end on the bearing surface 31 by means of holes 311, 312. At its other end the board fits into groove 32 in the support member mounted on the opposite panel. Thus when the L-shaped sections are disconnected at 13 the boards will be supported at one end, Fig. 3 (not shown). The printed wiring panels 11, 22 are connected to their respective boards by leads 14 so that when the two sections are disconnected each circuit board remains electrically connected to its panel. Control members may be mounted on metal panel 21 in a dust-proof manner, Fig. 4 (not shown) and also in a manner to facilitate exchange of the control members. A complete housing may be produced by including top and bottom covers.
Patent GB-1315082-A (GB)
Title: Synergistic antibacterial combination
IPC: C11D3/48
Filed: 1971-10-08
Abstract: 1315082 Antibacterial compositions PROCTER & GAMBLE CO 8 Oct 1971 [8 Oct 1970] 46955/71 Heading ASE [Also in Division C5] An antibacterial composition contains a mixture of the zinc salt of 1-hydroxy-2-pyridine thione and 2, 4, 4'-trichloro-2'-hydroxydiphenyl ether in a weight ratio of from 9:1 to 1:9.
Patent GB-1465587-A (GB)
Title: Slicing machine
IPC: B26D7/32
Filed: 1974-10-31
Abstract: 1465587 Slicing foodstuffs BIZERBAWERKE WILHELM KRAUT KG 31 Oct 1974 [7 Nov 1973 8 Feb 1974 31 May 1974]  47143/74 Heading A4C A food slicer, particularly for sausages, comprises a cutting disc 2 preferably driven by an electric motor and a manually reciprocable feed carriage 3 which is connected by a belt 28 to rotatably oscillate, in synchronism about a vertical shaft 24, a slice receiver 7 removable from the slicer, slices cut by the disc being guided by a pivotal plate 33 on to spikes 12 projecting from a semi-cylindrical plate 9 as the slice receiver rotates anti-clockwise. A pusher bar 35 pivoted to the plate is then contacted by an entraining member 38 of the receiver to push a slice firmly on to the spikes, movement of the receiver then taking place clockwise as the feed carriage moves back away from the disc. This action takes place repeatedly until the required number of slices have been impaled on the spikes, those slices then being removed by movement of a handle against springs 21 so that rectangular sections 14 of the cylindrical plate 9 are moved out of the surface of the plate by being linked to the handle by pivoted levers 15, 16, these sections taking the dot-dash line positions of Fig. 1. Release of the handle allows the sections to resume their position within the surface 9. Above the surface 9 is a semi-frusto-conical array of fingers 11 to aid support of the slices impaled on the spikes.
Patent GB-1074174-A (GB)
Title: Method of treating sludge
IPC: C02F3/32
Filed: 1965-11-09
Abstract: Sewage sludge is dehydrated and coagulated by applying a layer of the sludge to a pervious layer of gravel in which reed or other marsh plants have been planted.  The gravel may be situated in a water-proof basin having a removable transparent roof and at least one ventilator for drawing in dry air, which may be heated, and removing evaporated moisture. The layers of gravel and sludge may be 30-40 cm. and 15-20 cm. thick respectively.  Other plants specified are polygonum, festica, glyceria, spartina and townsendii.
Patent GB-1528477-A (GB)
Title: Diamonds
IPC: H01B1/04
Filed: 1975-11-18
Abstract: 1528477 Diamond radiation detectors DE BEERS INDUSTRIAL DIAMOND DIVISION (PTY) Ltd 18 Nov 1975 [4 Dec 1974] 47567/75 Heading H1K A detector of ionizing radiation (e.g. light, α, #, γ or X-rays) comprises a body or body part of type IIb semi-conducting diamond which has been subjected to high energy radiation (e.g. electrons) to induce atomic displacements. The effect of such treatment is to render the diamond non-conductive between electrodes 16 applied thereto, but in the presence of ionizing radiation the diamond once again carries a current when a direct voltage is applied between the electrodes. As shown only a band 14 of the diamond has been subjected to the high energy radiation, the remaining parts 10, 12 having been shielded, e.g. by lead, so as to retain their semi-conductive properties.
Patent GB-1528859-A (GB)
Title: Pseudo-random code(prc)surveillance radar
IPC: G01S13/58
Filed: 1976-11-16
Abstract: 1528859 Radar INTERNATIONAL STANDARD ELECTRIC CORP 16 Nov 1976 [24 Nov 1975] 47671/76 Heading H4D A CW pseudo random coded radar in which the carrier is bi-phase modulated (103) Fig. I by a maximal length digital code sequence of duration TW, produced by a coder 110, with the code bit frequency changing at intervals giving sufficient returns at each frequency, whereby after correlation of the echoes with the respective codes the relative time positions of the resulting correlation peaks enables, using a Vernier process, the resolution of range ambiguities. For the L = 31 bit code the correlation is performed in L parallel channels B 1 to B31 using as respective references the output of an L stage delay 111 receiving the output of the coder 110, the parallel simultaneously occurring correlation results, being sequentially sampled at the bit rate by a commutator 110 to produce a compound continuous result. After A to D processing (120) doppler shifts are detected and removed by means of a Fast Fourier Transform 121 and a filter detector 122, a range ambiguity processor 123 detects corresponding correlation peaks in the results from the transmissions at the various bit frequencies. Each channel B 1 to B31 comprises a notch filter 119 tuned to the i.f. whereby clutter is rejected. Three bit frequencies are sequentially used fl, f2 and f3 where and Using these frequencies and relative to the starting times of the use of any of these frequencies the code words slip one bit relative to each other for frequencies f1 and f2 and for frequencies f2 and f3, i.e. the last or 31st bit of the first word at frequency f1 is coincident with the penultimate or 30th bit of the first word at frequency f2, Fig. 9A. This known slippage rate allows the range ambiguity processor to determine, by a simple Vernier process, the position of corresponding correlation peaks for the successive bit frequency usages. Fig. 9B illustrates the case where a correlation peak is detected at the 10th bit of the 23rd word at frequency f1 and at the 19th bit of the 22nd word at frequency f2. This indicates that the target range is 22 times the range equivalent to the duration of a word at frequency f1, 5.167 mHz i.e. 900 m plus 10 times the range equivalent to the duration of a bit i.e. 29 m giving a target range of 20,090 m. The use of three frequencies further increases the accuracy.
Patent GB-987185-A (GB)
Title: Tetrafluoroethylene polyethers
IPC: C08G65/04
Filed: 1962-12-18
Abstract: The invention comprises tetrafluoroethylene polyethers of general formula (-CF2-CF2-O)n, wherein n is the average number of tetrafluoroethylene epoxide units, said polyether having an inherent viscosity of at least 0.2 as measured at 25 DEG  C. in an 0.5% by weight solution of the polymer in perfluorobutyloxolane. The polymers have number average molecular weights of at least 100,000.  They are prepared by polymerizing tetrafluoroethylene epoxide with free radical initiators at temperatures below the melting point of the monomer, preferably - 200 DEG  to -190 DEG  C.  Initiators used are fluorine and free radicals formed by the monomer when subjected to high energy ionizing radiation, e.g. 0.1 to 3.0 MEV, provided by X-rays, g -rays or b -particles.  Diluents used are fluorocarbons; bulk polymerization methods are also used. The examples describe the preparation of polyethers having viscosities of 0.411 to 0.605, these polyethers having thermal stability, fluorocarbon end groups and high solubility in fluorocarbon solvents at room temperature.  They may be used as elastomers, antisoilant for nylon, lubricating and insulating fluid and also in coating compositions for steel.ALSO:Steel panels are coated with solutions of tetrafluoroethylene polyethers of general formula (-CF2-CF2-O-)n where n is the average number of tetrafluoroethylene epoxide units in the polyether, the polyethers having an inherent viscosity of at least 0,2 as measured at 25  DEG C. in an 0,5% by weight solution of the polyether in perfluorobutyloxolane.  The polyethers have molecular weights of above 100,000.  Example 2 describes coating steel panels with a solution of 10 grams of polyether in 50 ml. of perfluorodimethylcyclobutane to give, on evaporation of the solvent, strong coherent coatings resistant to chemical corrosion.
Patent GB-1313080-A (GB)
Title: Chromogenic amino-substituted fluoran compounds
IPC: C09B11/24
Filed: 1971-10-14
Abstract: 1313080 Chromogenic amino-substituted fluoran compounds NATIONAL CASH REGISTER CO 14 Oct 1971 [3 Nov 1970 (2)] 47841/71 Addition to 1269601 Heading C4P [Also in Division D2] Novel compounds of the formula (wherein R 6  and R 6  are each H or C 1-4  alkyl, and either R 1 , R 2 , R 3  and R 4  are each selected from H, halogen and C 1-4  alkyl, at least one being other than H, or R 2  is optionally substituted amino and R 1 , R 3  and R 4  are each selected from H, halogen and C 1-4  alkyl) develop colour on contact with an acidic material and are used in pressure-sensitive record materials (see Division D2B). They are prepared from 2-carboxy- 3,4,5,6 - tetrachloro - 2<SP>1</SP> - hydroxy - 4<SP>1</SP> - aminobenzophenones and appropriately substituted phenols.
Patent GB-1357097-A (GB)
Title: Fault display unit for a vehicle
IPC: B60Q3/04
Filed: 1970-10-09
Abstract: 1357097 Fault indicator JOSEPH LUCAS (INDUSTRIES) Ltd 1 Oct 1971 [9 Oct 1970] 48067/70 Heading G5C  A fault indicator for a vehicle comprises a framework holding a number of transparent display panels 19, each of which is illuminated by a bulb 23 at each end. The panels 19 each carry a legend in the form of a series of indentations, so that when a fault develops in the vehicle, the relevant panel is illuminated by bulbs 23 and the legend can be seen through an aperture 17 in the dashboard 16 and the window 13. A modification has two sets of panels 19 adjacent each other.
Patent GB-1299171-A (GB)
Title: Apparatus for testing textile yarns or strips
Inventor: NICHOLS RONALD
IPC: G01N25/16
Filed: 1968-10-12
Abstract: 1299171 Heat shrinkage testing apparatus: Strain gauge TESTRITE Ltd 9 Jan 1970 [12 Oct 1968] 48464/68 Headings G1S, G1M [Also in Division D1] An apparatus for determining the shrinkage of yarns, filaments, wires or fabric strips e.g. tyre cord yarns, when heated, comprises two hot plates 34 and 36 having a gap therebetween to receive the test specimen 52, an anchorage spring clip 50 at one end and a shrinkage indicator 56, 58 and 60 at the other. A weight 62 is provided to maintain the specimen taut. The clip 50 and indicator device are mounted on a sliding carriage 14 having a handle 46 to allow specimen to be moved from outside to inside the gap. The hot plates may be heated by electricity, steam, gas, or oil and suitable controls are provided.
Patent GB-1460281-A (GB)
Title: Electrical circuits
IPC: G08B1/08
Filed: 1973-10-18
Abstract: 1460281 Burglar alarms; fire alarms; electrical signalling ELECTRONIC ALARMS Ltd 25 Oct 1974 [18 Nov 1973] 48674/73 Headings G4N and G4F  A circuit comprises at least one signaltransmitting device 15 and at least one polaritysensitive device 13, responsive thereto, the devices 13, 15 being connected to common wiring 1, 2 supplied from D.C. power source 3, the power source 3 being arranged in normal operation to supply power with a polarity opposite that to which the response device 13 is responsive, the signal transmitting device 15 being arranged to operate under said normal supply polarity and means responsive to operation of one of said signal-transmitting devices 15 to reverse the supply polarity, thereby to apply to said device 13 power of the polarity to which the device 13 is responsive. The Specification describes a fire or burglar alarm in which the signal-transmitting devices 15 may take the form of manual push buttons, smoke or heat detectors. Relay 8 is normally energized from battery 4, 5 so that the contacts 10, 11 are in the position shown, making line 1 positive with respect to line 2. In the event of a fire or burglary, contacts 15 close, short circuiting the relay 8 so that contacts 10, 11 change to their lower positions, reversing the polarity on line 1, 2 so that the bell, lamp, doorcloser or sprinkler 13 will operate. A single-pole relay may be employed if two series-connected batteries are used. A condition-responsive transmitting device 17 may be responsive to either polarity by means of a bridge rectifier 18.
Patent GB-993824-A (GB)
Title: Process for the isomerization of light hydrocarbons
IPC: C07C5/22
Filed: 1963-12-11
Abstract: <PICT:0993824/C4-C5/1> In the isomerization of C4-C7 paraffins in the presence of a liquid Friedel-Crafts catalyst the product effluent containing isomerized and unreacted light hydrocarbons, heavy hydrocarbon by-product and dissolved and possibly entrained catalyst is fractionated to obtain vaporous light hydrocarbons and a liquid phase containing heavy hydrocarbons and catalyst and this liquid phase is extracted with light hydrocarbons to separate heavy hydrocarbons from the catalyst which is recycled to the reaction. Preferably the light hydrocarbon extract is a portion of the reaction effluent and is then passed into the distillation zone.  Feed paraffin is dried if necessary at 14 and passed in countercurrent with catalyst from the reactor in extraction column 18 wherein catalyst is dissolved in the feed and sludge is removed at 24.  Feed in line 26 is mixed with hydrogen chloride from line 30 and hydrogen from line 28 and is contacted in reactor 20 with a body of liquid catalyst, preferably a mixture of antimony trichloride and aluminium chloride containing 2-16% wt. of the latter. Product passes by line 34 to fractionator 32, part, e.g. 2-20%, being passed by line 52 into extractor 50.  Overhead vapours are recovered by line 36 and hydrogen separated in separator 38 and hydrogen chloride recovered in stripper 42. Liquid bottoms, mainly catalyst, from fractionator 32 pass into extractor 50 where it is contacted in countercurrent with product from line 52.  Catalyst is recovered in line 60 for recycle and hydrocarbons pass into the fractionator.  Heavy hydrocarbons form a separate phase above the catalyst in reboiler 56 and are recovered by line 58.  Reaction is affected at least partly in the liquid phase at about 100 DEG  C. and 8-35 kg./cm.2g.
Patent GB-1092655-A (GB)
Title: Refractory cement compositions
IPC: C04B35/10
Filed: 1964-12-02
Abstract: A method of bonding high purity alumina refractory bricks comprises using as a mortar for the bricks a cement consisting of finely divided alumina mixed with an aqueous solution of a salt which decomposes on firing to yield alumina and volatile compounds, characterized in that the finely-divided alumina is of at least 99% purity and includes a proportion of at least 25% by weight of alumina particles of -325 mesh size (Tyler scale), a minor fraction of this proportion, comprising at least 2% by weight of the proportion, being smaller than 1 micron in size. The cement may be composed entirely of -325 mesh particles or these particles may be mixed with alumina particles up to 65 mesh or larger.  The proportion of submicron particle is preferably at least 5% by weight of the -325 mesh particle content.  The submicron particles may comprise a first fraction smaller than 0.05 micron and a second fraction larger than the first but smaller than 0.2 microns.  The aqueous salt may be the chloride, chlorohydrate nitrate or sulphate of aluminium.  In a preferred method the composition comprises a submicron fraction itself composed of two fractions as above mixed with a -325 mesh but greater than 1 micron fraction, and with aqueous aluminium chloride in such proportions that upon firing at 700 DEG  C. the cement has a modulus of rupture of at least 700 pounds per square inch.  The structure formed by bricks bonded according to the method may be fired at at least 1250 DEG  C. to develop a ceramic bond.