baber/WOPTO huggingface dataset:
Patent GB-1485306-A (GB)
Title: Controllable liquid-crystal display device
IPC: G09F9/00
Filed: 1974-09-25
Abstract: 1485306 Controlling light BBC BROWN BOVERI & CO Ltd 25 Sept 1974 [27 Sept 1973] 41682/74 Heading G2F In a display system comprising an electro-optic liquid crystal cell between a first linear polarizer, and a second linear polarizer combined with a reflector, the reflector scatters little or no light and the first polarizer has a higher opacity ratio than the second polarizer, where the opacity ratio is the ratio of light intensity transmitted respectively by a pair of parallel and crossed polarizers of the same type. As described the cell is a "twist" cell, the first polarizer has an opacity ratio of 70, 35% transmittance in the parallel position and 0À5% when crossed, and the second polarizer has an opacity ratio of 2, 45% and 22%. The reflector may be brushed and anodized aluminium foil, or specular foil with the first polarizer having a roughened viewing side, the optical scattering in each case being just sufficient to avoid specular reflection of an illuminating light source. The system may also be constructed in part by thin film techniques. The rear electrode may be disposed between the liquid crystal layer and the second polarizer, or between the second polarizer and the reflector, with A.C. energization. A support plate may be disposed behind the reflector, or between it and the second polarizer. A preferred arrangement with reduced parallan is, in order, liquid crystal layer, polarizer, electrode, reflector, and plate, in which the electrode either is spaced from the reflector by an evaporated silicon oxide layer, or is constituted by the reflector. The electrode may be segmented. Reference has been directed by the Comptroller to Specification 1436085.
Patent GB-1427413-A (GB)
Title: Antibiotic and process for production thereof
IPC: C12P1/06
Filed: 1973-09-05
Abstract: 1427413 Antibiotic XK-49-1-B2 KYOWA HAKKO KOGYO CO Ltd 5 Sept 1973 [7 Sept 1972] 41798/73 Heading C2A The novel antibiotic XK-49-1-B-2, characterized as its hydrochloride having the following properties: Elementary analysis: C= 32À13%, N=14À20%, H=6À34%, Cu=3À4%, Cl=10À73%, S=2À02% and O (by difference)= 31À18%; U.V. absorption spectrum as shown in Fig. 1, having maxima at 244 mÁ and 293mÁ; IR absorption spectrum (in KBr) as shown in Fig. 2, with major peaks at 3400, 3200 (sh), 2950, 1720, 1655, 1635, 1580-1550, 1520- 1510 (sh), 1460, 1250, 1050, 1010 and 980 (sh) cm.<SP>-1</SP>, where (sh) indicates a shoulder; ratio of UV absorbency at 244 mÁ : UV absorbency at 293 mÁ=1À34 : 1; positive to Sakaguchi, Pauli and Ehrlich tests, negative to ninhydrin test; having the following Rf values on paper chromatography: ammonium chloride solutions of 20% w/v : 0À75, 10% w/v : 0À72, 1% w/v: 0À40, 0À5% w/v: 0À15; water-saturated nbutanol: 0À00, n-butanal-acetic acid-water (3 : 1 : 1 v/v): 0À08, water-saturated ethyl acetate: 0À00, water-saturated n-butanol-ptoluenesulphonic acid (2%)-piperidine: 0À02; and being a greenish-blue solid, soluble in water, methanol and ethanol, and insoluble in most other organic solvents, and having an indefinite decomposition point without melting at above 190‹ C., is produced by aerobically cultivating Streptomyces violaceochromogenes (nov. Sp.) ATCC 21807 or an XK-49-1-B-2- producing mutant or variant thereof in nutrient medium containing assimilable sources of carbon, nitrogen and any necessary salts and growth factors, at 25-40‹ C., and recovering the antibiotic from the fermented medium. The antibiotic is recovered from the culture filtrate at about pH 6À5 using appropriate adsorption and elution procedures, the final fraction being concentrated in vacuo followed by precipitation of the antibiotic hydrochloride salt by addition of acetone. XK-49-1-B-2 and its acid-addition salts have antibacterial and anti-tumour activity, and may be made up into pharmaceutical compositions with a pharmaceutical diluent or carrier.
Patent GB-1022616-A (GB)
Title: Method and machine for arc welding under pressure
Inventor: BRIDOUX CLAUDE
IPC: B23K9/16
Filed: 1962-11-06
Abstract: 1,022,616. Welding by fusion. COMMISSIAT A L'ENERGIE ATOMIQUE. Nov. 6, 1962 [Nov. 13, 1961], No. 41928/62. Heading B3R. An arc welding machine for welding a workpiece, e.g., of sintered aluminium, under gas pressure comprises an openable leak-proof welding chamber 12 containing a workpiece clamping chuck 2 driven by a motor, a welding electrode adjustably mounted in the chamber 12 and a pipe 28 for introducing gas under pressure. The upper portion of the chamber 12 is pivotally and slidably mounted on a post 13 and is counterbalanced by a weight 22. It is secured to the base 11 of the chamber 12 by a clamp 8. The chamber 12 is connected to and in communication with a gas tight tubular shell 7 which houses the main length of the workpiece and consists of one or more sections connectible in gas-tight manner as required by the length of the workpiece. The chamber 12 is provided with a viewing window 15 which may be covered by a tinted shutter 16. The whole assembly is mounted on a base 5 provided with a control panel 34 and is enclosed by a transparent leak-proof cover 30 having operator's gloves 31 and a locking-in chamber 32 for admitting or removing a workpiece.
Patent GB-1352622-A (GB)
Title: Cultivation of physiologically and morphologically valuable plants in greenhouses
IPC: A01G9/14
Filed: 1971-09-09
Abstract: 1352622 Treating plants BADISCHE ANILIN-& SODA-FABRIK AG 9 Sept 1971 [10 Sept 1970] 42068/71 Heading A1E [Also in Division E1]  A greenhouse comprises side walls Al which are moveable vertically so as to form apertures A2 allowing air circulation A3. The apertures may be covered by a net or grille to prevent entry of animals. Incoming air is moistened by water sprayed from atomizers A4. Conventional watering means C8 water plants in pots C4. Air circulation may be assisted by ventilators A6 or openings A10. Means for supplying artificial light may be arranged above the greenhouse. Heaters A9 within stands A7 control the temperature within the greenhouse. The pots C4 rest in recesses in trays Cl each recess having a water overflow hole C2, the pots, therefore, resting in a constant depth of water C7 to which fertilizer may be added.
Patent GB-889734-A (GB)
Title: Improvements in or relating to cold-cathode tubes
IPC: H01J17/44
Filed: 1960-12-08
Abstract: 889,734. Cold cathode tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 8, 1960 [Dec. 11, 1959], No. 42281/60. Class 39(1) A cold cathode trigger tube comprises a cold activated cathode having a planar main discharge surface 12 an anode 6 in the form of a plate parallel to the cathode and two trigger electrodes 7, wherein two edges of the cathode are slightly bent away from the anode wherein the trigger electrodes 7 extend one parallel to each of the edges of the cathode and adjacent thereto, each trigger electrode being nearer to the adjacent edge of the active surface of the cathode than to any other portion of the cathode and wherein each trigger electrode is so positioned that it is not nearer to the anode than is the planar main discharge surface of the cathode. The cathode 5 and anode 6 are made of Ni sheet. Supporting rods 8, 9 are fixed in apertures of mica plates 10. The two edges of the cathode are bent through an angle of 30 degrees. The cathode has a coating of alkaline earth oxides. The filling is argon at 24 mm.
Patent GB-1383712-A (GB)
Title: Prevention of crystallization of sparingly soluble flavonoids in food systems
IPC: A23L2/56
Filed: 1972-09-12
Abstract: 1383712 Flavonoid compositions CENTRE FOR INDUSTRIAL RESEARCH Ltd 12 Sept 1972 [22 Oct 1971] 42391/72 Heading A2B [Also in Division C6] The solubility of flavonoids in acidic soft drinks is improved by making a dry mixture of 0.5-10 parts by weight of a sugar to one part of flavonoid, heating to 140-185C for 5-30 minutes to form a caramel melt, dissolving the heated mixture in water and adding the solution thus produced to the drink. The initial mixture may be prepared by dissolving the desired constituents in an aqueous system and evaporating off the water. Preferred flavonoids are saringin, heperidin, and rutin.
Patent GB-1027090-A (GB)
Title: Telemetering apparatus
IPC: G08C19/12
Filed: 1964-10-16
Abstract: 1,027,090. D.C. to frequency converter. BENDIX CORPORATION. Oct. 16, 1964 [Oct. 18, 1963], No. 42405/64. Heading H3R. In an arrangement for converting the D.C. signal from transducer 1 to A.C. output signals having frequencies proportional to the D.C. signal, the output of oscillator 3, which is controlled in frequency by a D.C. input from amplifier 2, is applied with the output of crystal controlled oscillator unit 7 to a mixer 5 and the selected difference frequency signal is applied to a frequency voltage converter 4 which supplies an input to the D.C. amplifier in opposition to that provided by the transducer 1. A high-frequency output signal is obtained at terminal 11 directly from the oscillator and a low-frequency output at terminal 12 from a low-pass filter.
Patent GB-1077777-A (GB)
Title: Process for the production of water-insoluble azo dyestuffs on textile material of cellulose or protein fibres
IPC: D06P1/12
Filed: 1964-10-19
Abstract: Textile materials, made of or containing cellulose or protein fibre are dyed by treating in an alkaline bath which contains a coupling component having a high substantivity and a diazoamino or tetrazoamino compound of the formula <FORM:1077777/D1-D2/1> wherein R is the radical of an aromatic or heterocyclic amine, Me is an alkali metal atom or an alkaline earth metal atom and n is 1 or 2, and a wetting or dispersing agent and, if desired, an inorganic salt and subsequently treating with an acid agent at a temperature below 40 DEG C.  Suitable coupling components are arylamides of aromatic or heterocyclic o-hydroxy-carboxylic acids or of acylacetic acids. Suitable diazo components are listed and the diazoamino compounds may be prepared from them and, e.g. sodium cyanamide or potassium cyanamide, as described in Specification 443222.  The coupling components used are those which at a goods-to-liquor ratio of 1:20, a dyeing period of 30 minutes at 30 DEG C, a concentration of 1 gram per litre of water without the addition of salts and an excess of 4.5 grams of sodium hydroxide per litre of bath, possess such high substantivity that at least 9 grams are absorbed by 1 kilogram of cotton.
Patent GB-1008535-A (GB)
Title: Device for gauging, metering or measuring liquids
IPC: G01F23/34
Filed: 1961-11-29
Abstract: 1,008,535. Liquid level indicator. J.A. CLARK and J. O. MORRISON. Nov. 29, 1961, No. 42676/61. Heading G1H. In a liquid level gauge for indicating the level of a liquid having a density less than water, such as Butane, a slotted light metal member 52, such as magnesium, is pivotally mounted on the end of a lever 43 pivotally mounted on the end of an inclined arm 35, detachably screwed into a container conduit 16 and pivotally attached to the end of a rod 47 attached to a crank 29 mounted on a spindle 23 carrying a pointer 22, and a further weight 56 of heavy metal, such as lead, is pivotally attached to the end of a short lever 37 pivotally mounted on the arm 35 and in abutting engagement against the end of level 43 and the arrangement is such that any alteration in the level of liquid 13 causes the weights 56, 52 to move the rod 47 to move the pointer er 22. The levers 37, 43 and weights 56, 52 can be so disposed as to pass through the conduit 16.
Patent GB-1496331-A (GB)
Title: Catalyst composition
IPC: B01J/
Filed: 1975-09-08
Abstract: 1496331 Preparation of acrylonitrile BP CHEMICALS INTERNATIONAL Ltd 8 Sept 1975 [3 Oct 1974] 42915/74 Addition to 1488375 Heading C2C [Also in Division B1] Unsaturated nitriles may be produced by the ammoxidation of olefins using a catalyst comprising an oxidic composition of antimony, molybdenum and/or tungsten, uranium and/or vanadium and, optionally, Sn, Ti, Cu, Mg, Zn, Cr, Mn, Fe, Co, Ni, Zn, As or Te, wherein the antimony-containing composition has been heat-treated before or after incorporation of Mo and/or W and U and/or V and the catalyst contains 0À05-1À0 atom per cent of Mo and/or W and 0À005-0À5 atom per cent of U and/or V, based on the total number of metal atoms. In the examples acrylonitrile is produced from a feed of propylene, ammonia, air and steam in the volume ratio 6 : 6À5 : 68 : 19À5 at 448-466 C.
Patent GB-1160363-A (GB)
Title: Adiabatic Construction.
IPC: E04H5/10
Filed: 1966-09-27
Abstract: 1,160,363. Refrigerators. TAKENAKA KOMUTEN CO. Ltd. 27 Sept., 1966 [18 May, 1966; 1 June, 1966], No. 43022/66. Heading F4H. A thermally insulated enclosure comprises a frame formed by a plurality of parallel joists 1, vertical pillars 4 secured to opposite ends of the joists and arch beams 5 secured to the upper ends of opposed pillars 4. Panelling is applied to the frame to form the floor, walls and roof of the enclosure which is thermally insulated by panels (Fig. 4, not shown) or by a double-walled structure having foamed polystyrene or poly - urethane between its walls (Fig. 5, not shown). The panels consist of open frames filled with insulation, a first layer of such panels being secured to the frame and a second layer of panels having finishing sheets on their internal faces being attached to the first layer to cover the joists therein. The roof structure is spaced from the insulation and has a ventilating opening therein, the space beneath the roof being open to the atmosphere at the edges thereof. The roof and external walls of the enclosure may be corrugated with the corrugations arranged at right angles (Figs. 17A, or 17B, not shown) to facilitate such entry of atmospheric air. The joists 1 of the enclosure are secured to a foundation which may be a float.
Patent GB-1241107-A (GB)
Title: Method and apparatus for cementing casing sections in well bores
IPC: E21B33/14
Filed: 1969-08-29
Abstract: 1,241,107. Wells &c. ROTARY OIL TOOL CO. 29 Aug., 1969 [7 Oct., 1968], No. 43110/ 69. Heading E1F. A section A of casing is supported in a well bore D to cover the interval between adjacent production zones by engaging members 28 carried by the section with a shoulder R in the bore, the shoulder being formed before or after the section is positioned in the bore. The upper end of the section carries a relatively rotatable body 21 on which the members 28 are pivoted, and the lower end of the section has a float shoe H carrying a basket 17. The section is positioned with members retracted at A or the lowermost interval by a pipe string P and running tool 37, 42. A ball 54 is dropped down, and fluid pressure is applied to the string to move the member 42 downwardly to project the members 28, the string being rotated so that the members 28 cut the shoulder. When the section is supported by the members 28 the fluid pressure is increased to unlatch the running tool from the member 21 and cause a sleeve 49 to lock the projected members 28. The string and running tool are lowered to the position shown in Fig. 6 and a charge of cement is supplied to the string to cement the section. The charge is followed by a ball (not shown) which opens ports 57 so that surplus cement may be washed from the section and well bore. The string and running tool are removed and sections cemented at any higher intervals. After the sections are cemented their shoes are drilled and the bore is enlarged at the production zones by expandable cutters.
Patent GB-1327527-A (GB)
Title: Supporting device for disc brake pads
IPC: F16D55/00
Filed: 1971-09-16
Abstract: 1327527 Disc brakes SOC SNC OMDSOFFICINE MECCANICHE DI SOMBRENO DI BOMBASSEI E BREDA 16 Sept 1971 [28 Nov 1970] 43182/71 Heading F2E In a disc brake in which pads 3, 3 are each operated by a separate piston, the pads are supported by pins 8, 9 passing through holes 7 therein the holes having flats 7a to provide a fulcrum B for each pad, and a third pin 11 is provided having conically shaped parts 11a engaging grooves 10 in pad 3, 3<SP>1</SP> at one point A, Fig. 5 (not shown), on the face of the pad 3, 3<SP>1</SP> on which the friction linings 6, 6<SP>1</SP> are provided, there also being provided a torsion spring 12 engaging the top of pin 11 and underneath pins 7, 8 so that the pads 3, 3<SP>1</SP> are pivotally biased apart in the direction of arrows D, D<SP>1</SP> about the fulcrums B. In a further embodiment pin 11 is made cylindrical and groove 10 inclined. It is stated that this arrangement damps vibration.
Patent GB-1483616-A (GB)
Title: Tray for the packaging of fragile products
IPC: B65D5/00
Filed: 1974-10-04
Abstract: 1483616 Trays R-M C MANSVILLE 4 Oct 1974 [5 Oct 1973] 43188/74 Heading B8P A stackable tray, e.g. for fruit or vegetables comprises a base 4, side walls 10 and end walls 5, the end walls being of double-thickness 6, 8, and flaps 11 being provided on the side walls 10 for defining means 15 facilitating stacking alignment. When folded from a blank 1 preferably of corrugated cardboard, the flaps 11 may be glued to the outer surface of end wall panels 6, the flaps 11 having a curved profile resulting in projecting portions 15a, 15b with define the means 15 for receiving a similar tray for stacking. Openings 17 allow for ventilation, portions 18 being optionally cut from the walls 10 for the same purpose. The panels 6, 8 defining the end walls may be joined at a scored fold line, or by bridge portions (110), Fig. 6 (not shown) separated by slots.
Patent GB-1277244-A (GB)
Title: Improvements relating to position fixing, range measuring and communication systems
IPC: G01S13/78
Filed: 1969-09-02
Abstract: 1277244 Radar GENERAL ELECTRIC CO 2 Sept 1969 [9 Sept 1968] 43437/69 Heading H4D In a navigation system wherein satellites 10, 11 move in geostationery orbits around the earth's surface 13 with line of sight to surface station 12 and user craft 14 (Fig. 1), the surface station is controlled by computer 16 (which also controls antenna orientation) to transmit (Fig. 2) interrogation signal modulated carrier to satellite 10 over TX 17 and directional antenna 18; the interrogation signal 28 (Fig. 4) comprising an initial tone 29 followed by an address signal 30 containing digitally coded information. Satellite 10 receives the signal and retransmits it to the craft 14 whose antenna is switched to receive mode with transponder 24, which matches the phase of a local tone with the tone component of the interrogation signal and stores and recognizes the code of the address signal when and only when it corresponds to the user craft address. Then transponder 24 switches its antenna to transmit mode (Fig. 3, not shown) and during a precisely known time delay the in-phase signal tone is returned to satellites 10, 11; after which the address signal is transmitted. This is then received and retransmitted to ground station 12 through satellites 22, 27 (Fig. 3, not shown), at which computer 16 determines the propagation time intervals between satellites 10, 11 and craft 14 and the time delay thereat, and from known satellite positions it determines the position of craft 14. A craft transponder (Fig. 5) comprises receiver 31 supplying digital phase lock matcher 33 matching the phase of the tone from stable oscillator 34 to that of the tone portion of the received signal; the signals being, e.g., pulsed; after which the address signal is received and clocked into address code demodulator 32 by pulses from the phase matcher 33, and on correspondence with a preset address code, gate 37 is pulsed to close and counter 38 to operate, counting a predetermined number of pulses received from 33. During this precise interval, antenna 36 is switched to transmit signal modulated by a tone cophased with the tone portion of the received signal. On termination of the interval, counter 38 ceases and pulses gate 41 closed and gate 37 open, so that clock pulses from the phase matcher 33 clock out the address signal from the address code demodulator for modulation and transmission identically with the received signal. The ranging signals may be interposed into intervals of communication channels, and the transponder may be incorporated into an automatically releasable distress buoy and arranged to transmit a distress signal over the satellite link to alert the ground station 12 for interrogation. Direct transmission between interrogating and user stations may be utilized, and positionally known aircraft may replace satellites. The user craft position is determined by the intersection of equidistant circles at the earth's surface, referred to each of the two satellites. U.S.A. Specification 3,384,891 is referred to.
Patent GB-1401317-A (GB)
Title: Apparatus for cutting and removing material such as stalk  and leaf crops
IPC: A01D87/00
Filed: 1972-09-20
Abstract: 1401317 Cutting stored crop material E WEICHEL 20 Sept 1972 [23 Sept 1971 25 May 1972] 43574/72 Heading A4C [Also in Division B8]  Crop material on a rotary table 190 is cut by a rotating cutter 206 mounted at the free end of an arm 204 pivoted at 272, the material being transferred towards the pivot 272 by an endless conveyer 274. The conveyer and cutter are both driven by a single motor 276 and, during operation, the arm 204 is moved from the broken-line position towards the centre of the table 190. In Fig 2 (not shown), a screw conveyer (264) replaces the endless conveyer and the table (190), which is formed from segments, may be dismantled. In a further construction, Fig 3, a spring-loaded wall-like member 227b guides the material on to the conveying run of an endless conveyer 274. A roller 229, which may be driven and have prongs also guides the material. The conveyer has upper and lower endless members and is inclined toward its free end, Fig. 4 (not shown). The arm 204 is pivoted by power means the relative speeds of the arm and of the table 190 being arranged to provide a constant amount of material at the discharge end 239 of the conveyer. The table may be at ground level and be suitable to support vehicles. In Fig. 7, the material is compressed, as it is fed on to a main endless conveyer member 362, by an endless chain 362a having prongs, support means for the chain being raisable by pressure of additional material. The body 380 of the main conveyer has supports 400 of which rollers 351 engage a transverse support 353. Fig. 8 (not shown) illustrates a variable speed mechanism for adjusting the relative speeds of pivoting of the main conveyer and of the rotary table. The free end of this conveyer is moved toward the centre of the table by a driven lead screw (354) engaged by a nut (355) connected to the supports (400), Figs. 9, 10 (not shown). A blower unit (412) delivers the material from the main conveyer.
Patent GB-1268659-A (GB)
Title: Improvements in and relating to the recording and reproduction of sound
Inventor: KAMIYA MINORU
IPC: G11B3/00
Filed: 1969-09-05
Abstract: 1,268,659. Gramophone pickups. M. KAMIYA. 5 Sept., 1969 [11 Sept., 1968], No. 43959/69. Heading H4J. [Also in Division G5] In a three channel gramophone record, two channels are the normal stereophonic channels recorded respectively in the two surfaces forming the record groove and the third channel is produced in both surfaces by modulating the inclination, in the direction of the groove, of the stylus cutting the groove. During playback two of the channels recorded are picked up by the piezo-electric elements 8 and the third channel by piezo-electric element 10 responsive to inclination of the stylus 9 in the direction of the record groove. The three piezo-electric elements respond to forces which are mutually at right angles.