baber/WOPTO huggingface dataset:
Patent GB-1513125-A (GB)
Title: Method of joining webs
IPC: C08J5/12
Filed: 1977-04-07
Abstract: 1513125 Seaming non-metallic sheet material TEMCA CHEMISCHE UNION GmbH 7 April 1977 [9 April 1976] 14944/77 Heading B5K A web 21 of acetalized polyvinyl alcohol foam is joined to another web 22 of the same material or of a textile fabric by bringing the lengths thereof to be joined into contact and hotpressing, in the presence of moisture, at a temperature of 100-300C, preferably 200-250C, and a pressure of 1-10 kp. per sq. cm., preferably 4-6 kp per sq. cm. Prior to joining, the or each web of acetalized polyvinyl alcohol foam is saturated with water to its expansive limit. Preferably, the or each acetalized polyvinyl alcohol foam web comprises polyvinyl alcohol acetalized with formaldehyde and having an acetalization level of approximately 200% by weight. Of the second web is a textile fabric, it may comprise cotton, rayon, polyacrylonitrile or polyester fibres. Joining may be effected continuously by a heated wheel or intermittently by the device shown. The device comprises an elongate copper plunger 2 heated by an electric heating coil 6 and having an internal temperature sensor 7 connected to an external indicator 8. The plunger 2 is provided on a piston rod 10 of a fixed hydraulic cylinder 3 connected by pipes 15, 16 and valves 17, 18 to a supply of liquid under pressure. The webs 21, 22 are overlapped and laid on a fixed stainless steel anvil 1 and the plunger 2 is lowered when the desired temperature of the working face 5 thereof is reached to effect joining.
Patent GB-673972-A (GB)
Title: Improvements in or relating to circuit arrangements for converting pulses of differen durations into pulses of different amplitudes
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H04N5/10
Filed: 1949-06-04
Abstract: 673,972. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 5, 1950 [June 4, 1949], No. 15062/49. Class 40 (iii). [Also in Group XL (c)] In a pulse width discriminating circuit pulses of different durations are converted into pulses of different amplitudes by applying them as current pulses to an open-circuited delay network which has a time delay which is greater than half the duration of the narrower pulses and less than half the duration of the wider pulses so that the pulses applied to the input of the network are reflected at the open-circuited end to produce wider pulses at the input with enhanced amplitude which may be separated by an amplitude filter. The Figure shows a pulse discriminating circuit for separating frame synchronizing pulses from the combined line and frame synchronizing pulses in a television receiver. The incoming pulses are applied at terminals 3 to the grid circuit of a valve 4 in whose cathode circuit is a delay network 5 which is short-circuited at end 7. Cathode resistor 6 enables the network to be matched by its characteristic impedance at the input end. The delay of the line is such that only the wider frame synchronizing current pulses after reflection at end 7 overlap and appear at enhanced amplitude, Fig. 1 (not shown), across the input end of the network 5 and also across the anode load resistor 8, where they may be separated by an amplitude filter. Specifications 420,391, 455,373 and 491,728 are referred to.
Patent GB-660797-A (GB)
Title: Improvements in or relating to knitted fabric and to a method of and means for producing the same
IPC: D04B1/00
Filed: 1948-06-04
Abstract: 660,797. Knitting. CHELL & CO., Ltd., H., CHELL, H., and CHESTERTON, E. June 3, 1949 [June 4, 1948], No. 15134/48. Class 74 (ii). Knitted fabrics.-A broad mock rib fabric knitted of two yarns 3, 4 in alternation is formed of spaced groups of wales A in which in every alternate wale W both yarns are knitted in succession alternately and in every intermediate wale W<SP>1</SP> one yarn 4 is knitted whilst the other 3 is tucked, these spaced groups of wales A being intermediate groups of wales B in which all of the wales are knitted of both yarns successively in alternation. Knitting-machines.-A circular machine for knitting the fabric comprises a selector cam 11, immediately in front of the forward and reverse stitch cams of one feeding station, which selects alternate or groups of needles to lower them, and a hinged tucking cam 15 which, if it is desired to form tuck loops, is moved to a raised position to raise the selected needles to a height to receive yarn without clearing their previous loops after which they are lowered by the forward stitch cam 8 and continue to the next feeding station whereat the selected needles clear their loops and knit a second yarn. The non-selected needles clear their loops, take yarn and knit at both feeders. A method of forming a welt is described in which a single yarn is fed to all of the needles for three or more courses, alternate needles or groups of needles holding the yarn at each course without knitting and eventually bringing the needles holding yarn into operation at the commencement of two feed knitting for the formation of the tucked or floated fabric. A plurality of successive welt formations may be knitted. Specifications 12519/15, [Class 74 (ii)], and 537,344 are referred to.
Patent GB-321965-A (GB)
Title: Improvements relating to animal foods
IPC: A23K1/00
Filed: 1928-05-23
Abstract: 321,965. White, A. E., (Ellis-Foster Co.). May 23, 1928. Food for animals.-To facilitate handling by animals a biscuit is made of bar shape and is curved or shaped so as to be longitudinally rockable. The curved biscuit may be formed with flat faces and knobbed ends to resemble a femur bone or may take the shape of a rib bone. The biscuit contains vitamin-supplying ingredients and is baked to form a hard non-fissured crust to prevent deterioration of its vitamin content. As suitable ingredients wheat flour, rice bran, malt syrup, glucose, salt, and milk are mentioned; in another composition for assisting growth rice polishings, rice bran, malt syrup, glucose, and milk are specified, and in a third form wheat flour, rice bran, cod liver oil, salt, malt extract, glucose, and milk are indicated. In each case the ingredients are mixed and baked on a curved surface and then air dried' at from 30‹ to 50‹ Centrigrade for several days or weeks. Specification 17875/08 is referred to.
Patent GB-495208-A (GB)
Title: Improvements in or relating to immersion type electric liquid heaters
IPC: H05B3/78
Filed: 1937-06-01
Abstract: 495,208. Electric immersion heaters. FERRANTI, Ltd., and WATKISS, J. H. June 1, 1937, No. 15170. [Class 39 (iii)] The heating coil a is supported by perforated sections c through which they are threaded, and other sections arranged in recesses in the sections c and each having a body portion h and a head portion i entering the coil between adjacent turns. The sections are arranged in a metal tube j closed by a metal plug k supporting a ceramic plug l. Specifications 431,185, [Group XXXVI], and 456,023 are referred to.
Patent GB-138805-A (GB)
Title: Improvements in or relating to drawing and sketching appliances
IPC: B43L5/02
Filed: 1919-06-18
Abstract: 138,805. Trier, F. N. June 18, 1919. Drawing-boards.-A drawing or sketching appliance is formed of a supporting board bearing a scaled or ruled surface and a frame adapted to stretch and clamp in position on the board a sheet of substantially transparent drawing material. The board A is supported on battens A' one of which carries a frame B having an opening corresponding in size to the board and arranged when folded over, to occupy the same plane as the board A. The face of the board either has a piece of squared paper detachably secured thereto or is formed of some such material as celluloid ruled as required. As shown, the board A has a removable millboard panel C to which one or more sheets of squared paper are attached. To stretch and clamp the transparent sheets D over the bevelled edge A<3> of the board, the edges B<1> of the frame B are bevelled and ribs B<2> provided on the frame fit into grooves A<4> in the battens A<1> when the frame is closed. Hooks E and catches E<1> hold the frame down. The board may have a sling to facilitate carrying, and also a drawer may be provided at the back of the board.
Patent GB-857205-A (GB)
Title: Method of and apparatus for grinding and/or dispersing a solid suspended in a liquid
Inventor: MATHEWS AMPHLETT CHRISTOPHER B
IPC: B02C15/12
Filed: 1958-05-13
Abstract: 857,205. Grinding and dispersing apparatus; mixing appliances. COATES BROS. & CO. Ltd. Aug.13. 1959 [May 13, 1958], No. 15269/58. Classes 59 and 86 Apparatus comprising a rotor and a stator for grinding and/or dispersing a solid suspended in a liquid incorporates non-driven stirrer means which are adapted to be dragged at a speed intermediate that of the rotor and stator by the suspension, the stirrer means being so arranged that, in the operation of the apparatus, they have no associated bearing surface above the surface of the suspension charged into the apparatus. In the mill shown, which comprises a container 1 having stationary and rotary ball, or roller, tracks. 3, 4 secured respectively to mounts 6, 7, a stirrer rests on the mount 7 and comprises a cylindrical sleeve 8 the upper part of which has radially extending arms 9 provided with spaced downwardly extending fingers 10, 11 and with upwardly extending raked fingers 12. The lower edge of the sleeve 8 is notched at 18 and has raked fingers 13 extending therefrom. Helical wires 14, 15 are attached to the rotary shaft 5 and outer wall of mount 7 respectively. The upper side of mount 7 has fingers 16, 17 secured thereto. The container 1 has an annular cooling or heating jacket 2. A multiplicity of ball races may be provided. The container may be tilted and the rotor may take the form of a turbo-impeller.
Patent GB-184616-A (GB)
Title: Improvements in and connected with internal combustion engines
IPC: F02B75/02
Filed: 1921-06-02
Abstract: 184,616. Burnand, J. June 2, 1921. Cylinders receiving liquid fuel. - Two-stroke-cycle internal - combustion driven machines such as pumps, and air compressors &c. have one or more oscillating weights connected to the power pistons these weights absorbing energy from one explosion to assist in the compression of the next charge. As applied to a doubleacting vertical engine two weights 4, 5 are carried on levers pivoted to a crosshead d; two power pistons a, c with common combustion chambers drive the crosshead, which is connected by rods e<2>, f<2> to air pump pistons e, f and to a second crosshead g from which the machine is worked. The air pumps deliver to a passage m with air port n to the cylinder, the air sweeping out the exhaust from the two cylinders through the port n<1> and outlet o. The two power and two pump cylinders are cast together in two halves, which are bolted together. Liquid fuel is admitted to the compressed air through the nozzles i, j, the admission being controlled by the sliding valve s<3>, worked by levers s on the spindles s<2>. The machine is started by compressed air admitted through the valve k.
Patent GB-1267375-A (GB)
Title: Multi-purpose balance, particularly for household-kitchen use
Inventor: ACKERET PETER
IPC: G01G3/02
Filed: 1969-03-24
Abstract: 1,267,375. Weighing apparatus. P. ACKERET. March 24, 1969 [March 22, 1968], No.15283/69. Heading G1N. A domestic weighing balance comprises a number of cup-shaped containers any one of which can be supported on the apparatus 1. The containers can be nested one inside the other and inverted over the apparatus 1 where the lip of the outer container engages clip means 2 on the apparatus to secure the containers and apparatus together to form a transportable unit, Fig. 2 (not shown).
Patent GB-720980-A (GB)
Title: Improvements in electric switches operable by liquid pressure
IPC: H01H35/34
Filed: 1953-06-03
Abstract: 720,980. Actuation of switches. GENERAL MOTORS CORPORATION. June 3, 1953 [June 19, 1952], No. 15285/53. Class 38 (5) A switch actuated by fluid pressure comprises a casing 28, 33 divided into two chambers by a diaphragm 29 to one side of which fluid is admitted through a pipe 25. A fixed annular contact 30 is clamped between the diaphragm and casing, and a movable cupshaped contact 40 is pressed into engagement with the contact 30 by a spring 41 when a low pressure exists in the chamber 27. Electrical connection is made between the contact 40 and a terminal 22 by the spring 41 and a metal washer 45. When the pressure in the chamber 27 increases sufficiently it moves the diaphragm and opens the contacts 40, 30. In order to limit the movement of the diaphragm the contact 40 is formed with a shoulder 44 which engages the rim of a fixed insulating cup 48 when the contacts are opened. A second insulating cup 47 is connected to the cup 48 by ribs and both cups are provided with openings 61, 62 to ensure atmospheric pressure in the casing 33. The switch may be used to indicate high and low pressure in a lubricating oil system connected to the pipe 25, the circuit through the switch comprising a battery 60 and lamp 21.
Patent GB-562132-A (GB)
Title: New improvements in a method of champagnisation of fruit juices, namely those of thecitrus species
IPC: A23L2/40
Filed: 1942-10-30
Abstract: Lemon, orange, and grape fruit juices prepared by diluting the imported concentrates and adding acid, for instance succinic acid, to bring the pH value down to 4, are "champagnised" by means of CO2 evolved either by the addition of citric or tartaric acid and sodium bicarbonate to the juice or by the introduction of solid CO2, the mixture being bottled or placed in a firmly closed container and maintained at 80 DEG  F. for 48 hours, when the CO2 is evolved. Specification 494,229 is referred to.
Patent GB-1287103-A (GB)
Title: Vehicle battery charging systems
Inventor: WILEY DAVID
IPC: H02P9/30
Filed: 1969-03-25
Abstract: 1287103 Automatic voltage control JOSEPH LUCAS (INDUSTRIES) Ltd 13 Feb 1970 [25 March 1969] 15506/69 Heading G3R [Also in Division H2] A system for charging the battery 17 of a motor vehicle from an alternator 11 by way of a full wave rectifier 15, 16 comprises a series circuit of a resistor 18, a warning lamp 19 and the ignition switch 21 of the vehicle connected between an output terminal 12 of the alternator and the positive terminal of the battery, the output terminal 13, 14 of the alternator being connected, by way of diodes 22, 23, to the field winding 25 of the alternator in series with a thyristor 26 and thence to the negative terminal of the battery, gate current for the thyristor being provided by means of a circuit including a potential divider 31, 32, a resistor 29, Zener diode 33 and a transistor 28, the junction of the diodes 22, 23 and the field winding 25 being connected to the junction of the resistor 18 and the warning lamp 19 by a diode 27. When the ignition switch 21 is closed the warning lamp 19 is illuminated by way of a circuit which includes the resistor 18, the windings of the alternator 11, diodes 22, 23, the field winding 25 and thyristor 26; the thyristor being conductive at this point due to a gate signal from the battery 17 by way of the resistor 29. When the battery 17 is fully charged the Zener diode 33 breaks down so turning on the transistor 28. This removes the gate current from the thyristor which becomes non-conductive to prevent the flow of field current. The provision of the diode 27 ensures that the potential of the point 24 falls once during each cycle of the alternator output so that during this period of each cycle the thyristor 26 turns off.
Patent GB-949620-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1960-05-03
Abstract: 949,620. Refrigerating. ELECTROLUX Ltd. May 3, 1960 [June 4, 1959], No. 15512/60. Drawings to Specification. Heading F4H. Insulation surrounding a boiler or vapour expulsion system of an absorption refrigerating apparatus includes an external layer of material having a thermal conductivity less than the conductivity of an inner layer of heat resisting insulating material, the interface between the layers lying, under normal operating conditions, in an isothermal surface. In all the examples the external layer is of foamed polyurethane having its cells filled with trichloromonofluoromethane. When this material is foamed in situ directly on to the boiler system or applied directly thereto in pre-cast sections, no inner layer is present until the operating temperature is reached. Thereafter, the slow expulsion of the gas from the cells, in the region in which the temperature exceeds that for which the foam is stable, forms an inner more conductive layer of non-foamed material. In one form, the electrically operated boiler system of Specification 826,511 is surrounded by an inner layer of rock wool and an outer layer of foamed polyurethane. Alternatively, the rock wool may be replaced by a finely divided silicon compound and the outer layer may be lined internally with aluminium foil. Glass fibre sheaths may surround the electric heating cartridge and other conduits.
Patent GB-760843-A (GB)
Title: Shuttleless weaving loom
IPC: D03D47/00
Filed: 1954-05-26
Abstract: 760,843. Shuttleless looms. ANCET, V. M. J. and FAYOLLE, M. May 26, 1954 [June 9, 1953 ; Nov. 5, 1953], No. 15566/54. Class 142 (2). Driving. A verticallymounted electric motor 5 drives the main shaft 8, which is disposed vertically in the middle of the loom. The V-belt pulley 7 is made heavy to act as a flywheel. Operating weft inserter. The weft inserting needle 23 is actuated by crank 10 on the vertical shaft 8 acting through a connecting rod 15 on a lever 17 built up from tubing, the rectilinear movement of the needle being catered for by pivoting the lever 17 to an arm 18 pivoted at 19. Beat-up motion. Beat-up is effected by a reed mounted on a slay built up from tubing. A cam groove in the upper face of the pulley 7 actuates the slay by means of a rod 38 sliding in a guide 39, a quick beat up stroke being produced by a rise 14 of the cam. Shedding motion. Heald frames 44, Fig. 3, sliding in guides 46 are directly actuated by cams 52 on a shaft 53, running fore-and-aft of the loom, driven by bevel gears from the vertical shaft 8. Springs 51 keep the followers 49 in contact with the cams.
Patent GB-1214514-A (GB)
Title: Digital demodulator
IPC: H03D3/02
Filed: 1968-04-01
Abstract: 1,214,514. Frequency demodulators. INTERNATIONAL BUSINESS MACHINES CORP. 1 April, 1968 [19 July, 1967], No. 15626/68. Heading H3A. A digital demodulator comprises an analogue/ digital converter followed by a digital computer. An input signal including a carrier, a subcarrier and a baseband signal is fed to mixers 216, 218, Fig. 6, to produce f.m. quadrature signals at subcarrier frequency which are converted to digital signals by A/D converters 220, 222. The output from one converter is fed to an nth order differentiator 240 (where n is an odd integer) and the output from the differentiator is divided by the output from the other converter in divider 242. Circuit 286 then extracts the nth root of the divider output, which is the required base-band signal. If n = 1, the root circuit 286 may be omitted. In a modification, Fig. 3 (not shown), only a single mixer and A/D converter is used, the converter output being fed to the divider directly and also via the root circuit. In this case n is made an even integer. In another modification, Fig. 5, the output from each A/D converter 120, 122 is fed to kth order differentiators 144, 146, nth order differentiators 142, 140 and squaring circuits 172, 170, the outputs from the squaring circuits being again added to give a divisor signal for divider 184. The dividend is obtained by differencing the products of circuits 144, 140 and the product of circuit 142, 146. After dividing, the signal is fed to a (k + n)<SP>th</SP> root circuit. A suitable nth root circuit is described with reference to Fig. 4 (not shown).
Patent GB-441921-A (GB)
Title: Method of manufacturing fine powder
IPC: C01B13/20
Filed: 1934-05-25
Abstract: <PICT:0441921/III/1> Fine powder is manufactured from metals, carbon, &c. by striking an arc between electrodes of the metals &c. in a gaseous atmosphere at a pressure between 200 mm. and \ba1/2000\be mm. of mercury.  Powders of mixed metal or of metal and carbon may be produced by using dissimilar electrodes and by using a reactive atmosphere and suitably adjusting the temperature and pressure powdered metal compounds may be obtained.  For example by using an air or oxygen atmosphere oxides of iron, zinc, cadmium, magnesium, aluminium, and lead may be produced and in the case of lead litharge is obtained if the pressure is kept low and red lead if a higher pressure is used.  A carbonate may be made by using a carbon dioxide atmosphere.  The Figure shows apparatus for manufacturing oxide powder, an arc being struck between metal electrodes 2 in a vessel 1 to which air or oxygen is admitted at 3.  The powder settles in a condensing chamber 4, the air or oxygen being withdrawn at 7 through a filter 6.  When pure metal powder is required the air pressure may be reduced to a value at which no oxidation occurs or an atmosphere of inert gas such as nitrogen, hydrogen, argon, or neon may be used. The metallic powder may be mixed with oil or other similar medium by placing a container filled with oil &c. at the bottom of the reaction vessel or of a condensing chamber.  The Specification as open to inspection under Sect. 91 describes a method of making lead carbonate powder by striking an arc between a lead electrode and a carbon electrode in an atmosphere of air, oxygen, or carbon dioxide.  This subject-matter does not appear in the Specification as accepted.