baber/WOPTO huggingface dataset:
Patent GB-1492570-A (GB)
Title: Television transmission
IPC: H04N7/14
Filed: 1974-12-13
Abstract: 1492570 Scanning TELEFONAKTIEBOLAGET L M ERICSSON 13 Dec 1974 [20 Dec 1973] 54051/74 Heading H4F Band width reduction in a T.V. system for transmitting a static picture over a telephone line, is effected by: dividing each of two interlaced fields, comprising a frame, into 52 line groups (G1 to G 104) Figs. 2 and 3 (not shown) each comprising 6 consecutive lines from the respective field, giving rise to 52 pairs of interlaced line groups; selecting during each scan a fresh set of picture elements uniformly distributed throughout the group pair, for transmission until all the elements of the group pair have been sampled; and repeating this process for subsequent group pairs. In the preferred embodiment, each line is divided into 768 elements. Every 48<SP>th</SP> element along the line is selected yielding 16 elements each scan of the line, however, only the first 13 of these are sampled i.e. elements: 1, 49, 97, ..., 577 are sampled from each line during the first scan of the group; 2, 50, 98, ..., 578 are sampled from each line during the second scan of the group; ...; 48, 96, 144, ..., 625 are sampled from each line during the last scan of the group. After sampling 13 elements from each of the 6 lines in a group, two null elements are added for provision of space for the sync. pulses. So each scan of one group yields 13Î6+2=80 elements. A transmitter according to the invention, Fig. 4 (not shown), separates sync. from a CCIR signal. The sync. is further separated into line and frame components the former controlling a clock and the latter being processed to yield a starting pulse for a counter in a control circuit (RR1). The video is applied to a sample hold circuit which samples respective elements thereof under the influence of the control circuit. Sampled signals are A-D converted and placed into one of a pair of 80, 8-bit word stores, all of the elements from one group scan going into the same store. Signals derived from the next group scan are similarly processed and placed in the other of the pair of stores during which time the content of the first store is being output via a D-A converter and sync. adder, under the control circuit's influence and a modem for transmission over the telephone line. A receiver according to the invention Fig. 5 (not shown) demodulates the incoming signal and separates the sync. therefrom. The latter is further separated into line sync. which controls a clock and frame sync. which provides a starting pulse to a counter in a control circuit (RR2). A sample hold circuit passes the video to an A-D converter under the influence of the control circuit, and on to a pair of stores identical to those in the transmitter. The element signals are read out of these stores in the same manner as above, D-A converted and placed in a respective position in a picture memory under the influence of a further control unit and clock arrangement, for subsequent display on a picture tube.
Patent GB-547893-A (GB)
Abstract: 547,893. Dyeing textiles. GILES, C. H., WILKINSON, D. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 14, 1941, No. 3478. [Classes 2 (iii) and 15 (ii)] The fastness to combustion products from coal gas and the like of colourations on cellulose ester or ether materials is improved by treating the materials, during or after their colouration, with N:N<SP>1</SP>-diphenyformamidine or a derivative thereof in which the phenyl nuclei may be substituted, e.g. by alkyl, alkoxy or halogen,. and in which one or both of the remaining H atoms of the formamidine molecule may be substituted by alkyl containing not more than 4 carbon atoms. Specified derivatives are N:N<SP>1</SP>-diphenylacetamidine and its N-methyl and N-ethyl derivatives and N-phenyl-N<SP>1</SP>-ptolyl-N-methylacetamidine. In examples, a cellulose acetate artificial silk fabric, dyed with 1:4:5:8-tetraaminoanthraquinone, is (1) immersed for 1 minute in a 1 per cent. aqueous dispersion, or a 1 per cent. solution in alcohol, at 15-20‹C., of N:N<SP>1</SP>-diphenylacetamidine, squeezed and dried, the dispersing agent used being the sodium salt of the condensation product from naphthalene-#-sulphonic acid and formaldehyde, (2) immersed for 1 minute in a similar aqueous dispersion at 20‹C. of N-methyl-N:N<SP>1</SP>-diphenylacetamidine or N-phenyl-N<SP>1</SP>-p-tolyl-N-methylacetamidine, squeezed and dried. N-methyl-N:N<SP>1</SP>-diphenylacetamidine is obtained by treating with N-methylaniline the product of reaction in benzene of acetanilide with phosphorus pentachloride. N-phenyl-N<SP>1</SP>-p-tolyl-N-methylacetamidine is obtained by reaction of acet-p-toluidine with N-methylaniline in phosphorus trichloride.
Patent GB-1408157-A (GB)
Title: Solid state to,er
IPC: H03K3/351
Filed: 1972-11-28
Abstract: 1408157 Pulse generators SPRAGUE DEVICES Inc 28 Nov 1972 54959/72 Heading H3T A solid state timer comprises a trigger circuit 70-77 for generating clock pulses of predetermined repetition rate, a frequency divider including cascade connected bi-stable units 92- 97, an arrangement 113-129 for resetting the divider after delivery of an output signal to a load circuit 100-109 and a switch 87 responsive to the output signal for providing an additional charging path for the trigger circuit so as to increase the clock repetition rate. The trigger circuit includes a unijunction transistor 74 and a normal charging path including RC components 70-72. In operation, the output of the divider 92-97 formed after a predetermined delay turns off transistor 100 for activating a relay via transistors 102, 109. Circuit elements 121-124 are provided for inhibiting a system race condition as power is switched on. The divider may be reset when its output becomes low and a high output is produced at the output 117 of bi-stable 92 or by the opening of a pressure sensing switch 44. The additional charging of capacitor 72 via 82, 83 produces faster pulses so that the required condition of a high output on lead 117 is attained earlier. A test switch 79 when depressed accelerates the timer sequence.
Patent GB-1440986-A (GB)
Title: Machine for compressing fibrematerial
IPC: B30B9/30
Filed: 1973-11-27
Abstract: 1440986 Baling fibres MASCHINENFABRIK RIETER AG 27 Nov 1973 [27 Nov 1972] 54974/73 Heading B5F A machine for preconsolidating and compressing fibres into a bale comprises a fibre collecting duct 1 with an air-permeable, but fibre-retaining inner wall 3 for recieving and venting fibres conveyed by an air stream, an outer wall 9 with an air outlet 13, a baling chamber 34 arranged perpendicularly of the duct 1, and a slide 32 which cuts off the duct from the press and is opened when the fibre level in the duct has reached means 18, 19. These means comprise an ultrasonic transmitter and receiver which are vertically adjustable. When the slide is opened a flap 14 in the outlet 13 is closed. The inner wall comprises an untensioned flexible hose. When the fibres compressed in the chamber 34 reach the level of gauge 36, a gate 38 is opened and the press vane 35 pushes the fibres out of the chamber and between arms (40-43) which hold the bale until it is manually tied. Pistons mounted on the arms prevent backward movement of the bale. A control 23 emits an intermittent acoustic signal and prevent further actuation of the slide 32 when the gauge 36 is actuated. The signal is rendered continuous and the delivery of fibres stopped if these is such a fibre build up in the duct that manometer 27, 30 senses a predetermined pressure difference between the duct 1 and the surrounding space.
Patent GB-1496890-A (GB)
Title: Manufacture of magnetic materials which exhibit exchange anisotropy
IPC: C09D5/23
Filed: 1974-12-30
Abstract: 1496890 Surface oxidized magnetic powder BASF AG 30 Dec 1974 [29 Dec 1973] 56002/74 Heading C7U A particulate composition comprising Co 0À05 -0À96 Ni 0À95-0À04 is surface oxidized by N 2 O (optionally diluted with N 2 , CO 2  or noble gas) to form antiferromagnetic Co Ni oxide phase magnetically coupled with the ferromagnetic alloy phase. The particulate alloy may contain such amounts of Al, Cr, Fe, Mn and Zn that the magnetic exchange is not completely prevented and the treatment temperature may be up to 450‹C.
Patent GB-1419492-A (GB)
Title: Ceramic materials
IPC: C04B35/51
Filed: 1971-12-02
Abstract: 1419492 Uranium carbide UNITED KING- DOM ATOMIC ENERGY AUTHORITY 19 Feb 1973 [2 Dec 1971] 56111/71 Heading C1A [Also in Division G6] Sintered uranium carbide particles and/or sintered plutonium carbide particles are prepared by precipitating an oxide-forming compound of uranium or plutonium or a mixture of oxideforming compounds of the metals in the form of gel particles containing carbon, and contacting the gel particles with a solution of a nickel compound in an organic solvent thereby providing nickel in the particles as a sintering aid. The organic solvent in which the nickel compound is dissolved may be used to dry the gel particles by azeotropic distillation, or the solvent may extract water from the gel particles. The solvent may be a chlorinated hydrocarbon such as trichloroethylene, perchloroethylene, carbon tetrachloride, or an alkanol such as nhexanol, 2-ethyl-hexanol or a mixture of aliphatic alcohols. Specified nickel compounds include nickel acetylacetonate, nickel oluate, nickel naphthenate or nickel 4-cyclohexyl butyrate. The particles are converted carbthermically into the corresponding carbides.
Patent GB-1287877-A (GB)
IPC: B22F9/08
Filed: 1970-11-25
Abstract: 1287877 Producing metal powder CRUCIBLE Inc 25 Nov 1970 [23 April 1970] 56160/70 Heading C7X Oxidation-free metal and alloy powders are produced by atomizing molten metal with an inert fluid jet to form discrete particles, which are directed to a collecting chamber having a non- oxidizing atmosphere therein and also a reservoir of liquid N z , Ar, or He in which said particles are collected and cooled. The said non-oxidizing atmosphere is preferably vapour of the reservoir liquid; the chamber may be at subatmospheric pressure; granulation of steel and a Ni alloy is referred to.
Patent GB-1426940-A (GB)
Title: Pressure valve particularly for piston-type refrigerating  compressors
IPC: F16K15/16
Filed: 1973-12-04
Abstract: 1426940 Valves ZAKLADY ELEKTROMASZYNOWE "PREDOM-EDA" 4 Dec 1973 [40 Dec 1972] 56192/73 Heading F2V A check valve for the outlet of a refrigeration compressor comprises a closure member 1 in the form of a plate controlling a port 4 in a seat member 3. One end of the plate la is bent over and received in a groove 2 in the seat member, the groove being triangular in section and in depth less than the length of the bent-over portion. A bar 7 in a cover holds the closure member in place and imparts a pre-stress. A recess 8 in the cover receives the closure member and limits the degree of opening.
Patent GB-1366177-A (GB)
Title: Display devices
IPC: G02F1/1337
Filed: 1972-12-06
Abstract: 1366177 Modulating light SIEMENS AG 6 Dec 1972 [21 Dec 1971] 56228/72 Heading H4F In an electro-optic cell of the type comprising a layer of liquid crystal material between two plates, at least one of which is transparent, at least one plate is coated with a silicone layer to increase the degree of alignment of the liquid crystal molecules. Thus a cell exhibiting the dynamic scattering effect has a greater transparency in the non-energized state. The cell may alternatively be one in which a dichroic dye is incorporated in the liquid crystal layer. As particularly described the silicone coating is formed by immersing the plate(s) in a silicone oil or impregnating agent, or by spraying the plate(s) therewith. The treated plate may be heated to anneal the silicone layer and increase its adhesion, e.g. if the plate is of glass, and excess or unannealed silicone compound removed with a solvent.
Patent GB-1179300-A (GB)
Title: Electromechanical Resonator Device.
IPC: H03H9/46
Filed: 1967-12-14
Abstract: 1,179,300. Piezo-electric elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Dec., 1967 [17 Dec., 1966], No. 56791/67. H1E. [Also in Division H3] A piezo-electric resonator or filter comprises a piezo-electric body in the form of a disc or ring which is radially polarized throughout a substantial annular region between electrodes on the flat faces. As shown, the disc 1, of e.g. PZT or other ferro-electric ceramic, is radially polarized in the region between annular electrodes 3, 4. The element vibrates in a thickness mode with opposite faces moving radially in antiphase. Unwanted inharmonic vibrations may be suppressed by making the electrodes sufficiently thin or by choosing a value for D 1  between 0À3 D 0  and 0À5 D 0 . Suppression may also be achieved by loading with damping material, e.g. epoxy resin. The electrodes may cover the surfaces entirely provided the polarization is confined to the annular region defined by the diameter D i . Two pairs of annular electrodes may be connected in a quadipole formation to provide a filter. Polarization is effected by providing a disc thicker than the one shown with a pair of central electrodes on the flat faces and an electrode covering the cylindrical periphery. A polarization voltage is applied between the peripheral electrode and the commoned central electrodes. These electrodes are removed and the faces of the disc ground to obtain a disc of required thickness with more or less homogeneous polarization P.
Patent GB-1407019-A (GB)
Title: Fuel reformation method
IPC: C10J3/04
Filed: 1972-12-08
Abstract: 1407019 Hydrocarbon reformation INTERNATIONAL MATERIALS CORP 8 Dec 1972 56905/72 Heading C5E Liquid and solid hydrocarbons, e.g. gasoline, garbage and sewage, are thermally decomposed to generate hydrogen and carbon monoxide by intermittently introducing hydrocarbon into a zone free from catalyst which zone is maintained at a sufficiently elevated temperature to effect non-catalytic decomposition of the hydrocarbon to coke and hydrogen, either simultaneously or subsequently introducing superheated steam under the corresponding autogenous pressure into the zone, maintaining a sufficient temperature in the zone during periods when there is no introduction of hydrocarbon for reaction between liberated coke and superheated steam to proceed to substantial completion thus avoiding accumulation of coke deposits within the zone. Two elongated heated reaction zones are employed into one end of each of which hydrocarbon is alternately introduced with superheated steam the arrangement being such that hydrocarbon is introduced into one of the zones during at least part of the time when steam is introduced into the other zone, the zones being heated to a temperature above 950‹ C. Alternatively, a single elongated reaction zone is employed into one end of which steam is continuously injected and hydrocarbon fuel is intermittently injected, the zone being heated at least during the injection of hydrocarbon fuel to a temperature above 950‹ C. The effluent from the elongated reaction zone or zones is conducted to a further elongated zone free from catalyst maintained at a lower temperature in which the carbon monoxide present in the effluent is oxidized by water vapour present therein to carbon dioxide and hydrogen. The temperature in the zone or zones maintained at a lower temperature is about 430‹ C. Steam and hydrocarbon are introduced in a steam to carbon molar ratio of substantially 2 : 1. The carbon monoxide generated may be subjected to a shift reaction. Air or oxygen may be injected into the hydrocarbon in the reaction zone to expedite oxidation of the hydrocarbon and the coke.
Patent GB-1291510-A (GB)
Title: Heat treatment furnace
Inventor: BELOUSOV AFANASY AVRAAMOVICH
IPC: C21D9/00
Filed: 1970-12-01
Abstract: 1291510 Heat treatment furnaces A A BELOUSOV J G IVANOV N A KUZNETSOV V F FOMIN and A G TOMASHEVSKY 1 Dec 1970 [22 Dec 1969] 56946/70 Heading F4B A furnace 1 for the heat treatment of articles includes a mechanism for moving the articles within the furnace which comprises a disc 5 fitted on a horizontal shaft, a ring 9 eccentrically disposed with respect to the disc 5, the ring 9 being hinged to the disc 5 through shackles 10, and buckets 8 mounted on the opposite side of the disc 5 to the ring 9. Each of the shackles 10 is at one end rigidly connected to an axle 11 which extends into the ring 9, and at the other, fixedly connected to an axle 12 passing freely through the disc 5 and serving as a carrier journal for one of the buckets 8. The shackles 10, while rotating, maintain a vertical orientation because of the eccentricity of the ring 9 relative to the disc 5.
Patent GB-1446890-A (GB)
Title: Handle
IPC: B25G3/02
Filed: 1973-12-11
Abstract: 1446890 Hand-tool handles PHILIP MORRIS Inc 11 Dec 1973 [11 Dec 1972] 57367/73 Heading B4K A handle having an end element for holding an implement such as a razor head comprises an elongate main stem having a longitudinally extending slot with opposed side walls bordered by flat outer faces, an elongate channel-shaped member having side flanges engaged within said slot and having a substantially flat outer face, said side flanges each having a plurality of locking fingers spaced along and comprising extensions of the flange, said locking fingers each having an opening, the said side walls of said slot having lugs projecting into corresponding said openings respectively of said locking fingers. The stem 10 of a safety razor handle is of plastics material and is provided with a through slot over a major portion of its length and thin metal channel members 11, 12 which may be decoratively finished or chromium plated are fitted in the slot, projecting recessed or T- shaped locking fingers 22-25 thereon engaging lugs in the slot to secure the members 11, 12 in position. An opening extends into the stem from one end and a connecting element 13 having a flat fang 14 with sawtoothed edges 70, 71 is adapted to be inserted in the opening. The teeth 70, 71 become embedded in ribs 73, 74 (Fig. 4) on the sidewalls of the opening. The connecting element 13 has a head 16 shaped to engage in a dovetail or other grooved slot in a razor cartridge. Opposite faces of the element 13 bear the numerals I and II to identify the edges of the razor.
Patent GB-1462630-A (GB)
Title: Aq-eous alkaline photographic processing composition containing reflecting agent
IPC: G03C8/48
Filed: 1973-12-11
Abstract: 1462630 Photographic processing composition containing encapsulated reflecting agent POLAROID CORP 11 Dec 1973 [29 Dec 1972] 57379/73 Heading G2C An aqueous alkaline photographic processing  composition comprises a dispersion of particles of reflecting agent which are encapsulated by a polymeric material. The reflecting agent may be a white pigment e.g. titanium dioxide. The amount of polymeric material may be at least 2 wt. per cent  of the encapsulated reflecting agent. The polymeric material encapsulates the particles and may also provide strands of inter-connecting tissues bridging several encapsulated particles (see Examples I and 2). The polymeric material may be a hydrophobic acrylic polymer. The composition may contain an onium compound and an optical filter agent. The composition may be used in a silver  salt diffusion transfer or colour transfer process. The encapsulation of the reflecting agent prevents its phase separation and resulting dark or white streaks on the transfer image depending on whether light sensitive diffusion transfer material is processed in the dark or light respectively.
Patent GB-1236790-A (GB)
Title: Audio-visual recording and display methods and apparatus
IPC: G03B31/04
Filed: 1968-11-18
Abstract: 1,236,790. Recording and playback; associated working. BELL & HOWELL CO. 18 Nov., 1968 [20 Nov., 1967], No. 57655/70. Divided out of 1,236,784. Heading G5R. Pulses are generated in synchronism with the advancement of a film 15 in a camera 11, and after the occurrence of a predetermined number of such pulses a mark is made on the film to denote the start of a sound-accompanied sequence. As shown, pulses 114 from a generator 110, 112 in the camera 11 are recorded on a control track 25 of a tape 18 by means of a head 30. When an integrating circuit 118 has received the predetermined number of pulses, a unijunction transistor 120 is fired, driving a power transistor 124 to saturation so as to start the tape recorder motor 22 and flash a lamp 51 in the camera to expose a marginal portion of the film 15.
Patent GB-1363087-A (GB)
Title: Ferritic-austentic stainless steel
IPC: C22C38/00
Filed: 1971-12-13
Abstract: 1363087 Ferritic-austenitic stainless steel ARMCO STEEL CORP 13 Dec 1971 [23 Dec 1970] 57785/71 Heading C7A A stainless steel which contains 10 to 50% austenite in a ferritic matrix comprises, in weight per cent:- up to 0À06% carbon 4À0 to less than 11À0% manganese 19 to 24À1% chromium (up to 5% may be substituted by molybdenum) 0À12 to 0À26% nitrogen up to 3À0% nickel up to 0À03% phosphorus up to 0À03% sulphur up to 1À0% silicon  up to 0À5% cobalt up to 0À5% copper up to 1% niobium the balance iron and incidental impurities. The alloys exhibit good weldability, corrosion resistance, ductility and toughness, and are particularly suited for cold-headed fasteners and weldments.
Patent GB-1405250-A (GB)
Title: Yarn-threading apparatus for texturising machines
IPC: D02G1/02
Filed: 1971-12-18
Abstract: 1405250 Yarn threading by suction HOWORTH AIR CONDITIONING Ltd 15 Dec 1972 [18 Dec 1971] 58931/71 Heading DID A suction gun, for threading yarns through heater tubes is connected by pipe to collecting chamber A<SP>2</SP> on trolley A, air being drawn through the gun, the pipe, the chamber and filter a<SP>3</SP> by pump B driven by electric motor C. Bolt b<SP>3</SP> may be adjusted to tilt platform b supporting the pump to tension drive belt c.
Patent GB-1275918-A (GB)
Title: Computing device
Inventor: CASTLE ANTHONY NORMAN
IPC: G06G3/00
Filed: 1968-12-19
Abstract: 1275918 Calculating device A N CASTLE 16 March 1970 [19 Dec 1968] 60313/68 Heading G4B A device for continuously computing the product or quotient of two numbers, e.g. for obtaining the fuel consumption of a car from the distance travelled and the fuel consumed, comprises logarithmic screw elements 3, 4 mounted so that they can rotate freely but cannot move along their parallel longitudinal axes 5, 6. The distance and fuel consumed are represented by the degree of rotation of shafts 1 and 2 respectively, these rotations being transmitted through gear trains whose ratios are adjustable to screws 3, 4. Cam followers 7, 8 are therefore moved to the right through distances proportional to the logarithms of the input values. Slide 13, which is connected to follower 8, carries a logarithmic scale 11, whilst slide 14 carries pointer 12. The difference between the two displacements is thus the logarithm of the average fuel consumption, and is shown by the position of pointer 12 on scale 11. Means are provided to compress springs 9, 10 so that the cam followers may be disengaged from the screws to enable the inputs to be reset. They should preferably be reset so that pointer 12 records the expected fuel consumption, in order to minimize the time required for the device to approximate to the true fuel consumption. In alternative embodiments the device may be reset by rotating the screw elements, which have a ratchet mechanism to permit free rotation in the reverse direction, and a clutch may be provided between the input shaft and the screw. The input means may be arranged to drive the cam followers, with the screw elements moving longitudinally in place of the followers to provide the output. The pointer and logarithmic scale may be replaced by electrical contacts so that a circuit is closed by a given relative displacement of slides 13 and 14. Gear trains or lever systems may be interposed between the follower elements and the output means. Additional screws and followers may be incorporated to indicate the products and/or quotients between more than one pair of variable quantities. Other uses are to determine the average speed of a vehicle from the distance travelled and the time, the average efficiency of a boiler from the heat output and the fuel used, and the power used in an electrical apparatus from the voltage -drop and the current.