baber/WOPTO huggingface dataset:
Patent GB-1262451-A (GB)
Title: Improvements in or relating to silos
Inventor: DENMAN DENNIS
IPC: B65G65/42
Filed: 1967-12-06
Abstract: 1,262,451. Silo bottom unloaders. AUSTIN HOY & CO. Ltd. 6 March, 1969 [6 Dec., 1967], No. 55584/67. Heading B8E. A silo fitted with a bottom unloader having a sweep conveyer arm 12 comprises means for supporting an arch of compacted silage in the silo, which arc extends over the sweep arm 12, the supporting means comprising one or more substantially horizontal surfaces S positioned in the silo adjacent to the periphery thereof and above the level of the sweep arm 12.
Patent GB-1239939-A (GB)
Title: Manufacture of reconstituted tobacco products
IPC: A24B15/14
Filed: 1968-11-26
Abstract: 1,239,939. Reconstituted tobacco. AMF Inc. 26 Nov., 1968 [7 Dec., 1967], No. 56054/68. Heading A2C. A smoking composition for forming into reconstituted tobacco products comprises finely divided tobacco and an adhesive therefor comprising ethyl cellulose with an ethoxy content of 45.5% to 46.8% and a viscosity at a 5% concentration in an 80/20 mixture of toluene/ethanol (weight/ weight) of at least 5,000 cps. at 25‹C. Preferably the viscosity at 2% concentration should not exceed 10,000 cps. at 25‹C. The ethyl celulose is dissolved in a solvent such as methanol, ethanol, methylene chloride, toluene-ethanol or -methanol mixtures, or isopropanol-water mixtures containing from 88-97% isopropanol. Tobacco dust is dispersed in the adhesive so formed and the resultant slurry cast or otherwise applied to a moving belt, and dried at a temperature below the boiling point of the solvent, to form a sheet having an enhanced wet strength over that of conventional reconstituted tobacco sheets. The process may also be used for forming rods, cylinders, plugs or shreds of reconstituted tobacco. Humectants or plasticizers such as triethylene glycol, propylene glycol or glycerine, fibres, fungicides, siliceous earth and colouring additives may be incorporated in the slurry prior to shaping.
Patent GB-1487779-A (GB)
Title: Method of and apparatus for mixing finely divided dry material and a liquid
IPC: B01F5/10
Filed: 1975-12-18
Abstract: 1487779 Mixing apparatus J MATHIESON-MACMILLAN 18 Dec 1975 [31 Dec 1974] 56099/74 Heading B1C Apparatus for mixing a dry particulate material with liquid (to make e.g. a cement grout) comprises a mixing vessel 11 from which mixture is withdrawn through an outlet 13 and pipe 27 by a centrifugal pump 14 and returned through a nozzle 12 arranged to create maximum turbulence. Dry material is supplied by a scraper conveyer 20 from a hopper 19, and liquid from a tank 26 into pipe 27; the mixture can be discharged by the pump 14 by operation of the valves 15 (16) by a common lever 17. The vessel 11 is preferably of octagonal horizontal cross-section. The hopper 19 and tank 26 are of predetermined capacity; the tank 26 is discharged and refilled from a reservoir 33 by operation of valves 29, 30 by a common lever 34.
Patent GB-1418630-A (GB)
Title: Internal shoe drum brakes and to fluid pressure braking systems  including such brakes
IPC: F16D65/09
Filed: 1971-12-16
Abstract: 1418630 Internal shoe drum brakes; fluid pressure braking systems AUTOMOTIVE PRODUCTS Ltd 6 Dec 1972 [16 Dec 1971] 56348/72 Divided out of 1418628 Headings F2E and F2F Brake shoes 19, 20 are expanded by hydraulic pistons fed from master cylinder 100, or by a spring-operated mechanical wedge 26A which is normally lifted by compressed air from reservoir 93 which also energizes the master cylinder. Other subject-matter is similar to that disclosed in the parent Specification 1,418,628.
Patent GB-1374052-A (GB)
Title: Ratchet spanner
IPC: B25B13/46
Filed: 1973-11-21
Abstract: 1374052 Spanners LEYTOOL Ltd 21 Nov 1973 [8 Dec 1972] 56861/72 Heading B3N A ratchet spanner comprises, a handle formed from a pair of parallel flat plates 2 spaced apart by a shorter spacing member 3 and fastened together by rivets 4, a rotatable member provided at at least one end of the handle and retained by annular rims 8 within aligned bores in the plates 2, the rotatable member having external ratchet teeth 12 and a shaped bore 10 for engaging a nut or other fastening member, a pivoted pawl 14 having a pair of spaced teeth 17, 18 engageable alternatively with the ratchet teeth 12, the pawl being wider than the handle, and a pivotable toggle pin 22 urged by a coaxial helical spring 26 into contact with a depression 28 in the pawl to retain the pawl 14 in its alternative ratchet engaging positions. Different size rotatable members may be provided at the ends of the handle.
Patent GB-1367090-A (GB)
Title: Material for planting and reinforcing ground-areas and method for its production
IPC: A01G1/00
Filed: 1971-12-08
Abstract: 1367090 Seed strips BUNZL & BIACH AG 8 Dec 1971 [23 Dec 1970 2 June 1971] 57086/71  Heading B8C [Also in Division A1] Seeds are dispersed in a web of rot resistant non-woven textile fibres. The seeds may be sandwiched between two such webs which are interconnected by glueing or needling. Alternatively the lower web may be rottable and consist of straw or leaves. A hydrophilic material such as staple-rayon waste may also be sandwiched between the webs. The lower web may contain fertilizers, trace elements, growth substances, insecticides, or soil-binding agents. The upper web may include fuzible fibres and be formed by heat treatment.
Patent GB-1444921-A (GB)
Title: Liquid separators
IPC: B01D45/08
Filed: 1972-12-11
Abstract: 1444921 Plant for removing liquid particles from gas stream PREMABERG (GREAT BRITAIN) Ltd 11 March 1974 [11 Dec 1972] 57094/72 Heading B1T Liquid particles are removed from a gas stream by impingement on vertically spaced banks of parallel baffles, each bank draining into a respective horizontal duct which is connected at each end to a respective vertical drain pipe whose lower end discharges via a manometric strap (Figs. 2-4, not shown) to a vertical downcomer. Either trap and pipe can accommodate the whole flow from the bank, and the traps will maintain a liquid seal, when a ship in which the plant is located lists, rolls or pitches. In Fig. 1 (not shown) gas flows in series through two sets of four vertically spaced banks, the banks of each set acting in parallel and various drain pipes lead to a common outlet. Drainage is maintained even against a small pressure drop between the outside and inside of the plant. Ducts, traps and pipes are rectangular in cross section. Baffles have liquidcatching pockets.
Patent GB-1411320-A (GB)
Title: Rotary electric machine stator
IPC: H02K3/52
Filed: 1973-12-11
Abstract: 1411320 Securing end windings of electric machine stators CONSOLIDATED FOODS CORP 11 Dec 1973 [11 Jan 1973] 57314/73 Heading H2A In a rotary electric machine stator comprising a field coil 32 or 34 having a plurality of turns of conductive insulated wire wound on and extending axially beyond the ends of a respective one of a plurality of polepieces 12, 14 of a stator core 10, such core is formed therethrough at the circumferential centre of each polepiece with an axially extending aperture, e.g. slot 22, through which extends axially beyond the core in each direction an electrically insulated bendable metal, e.g. steel strip 24, whose extending portions are bent to form off-sets 26 bearing against opposite core ends to prevent longitudinal displacement of the strip with respect to the core and, beyond the off-sets, are bent, at 36, around the extending portions of the turns to support and anchor the latter in fixed position on the core beyond the offsets. The turns are wound on an automatic machine with the aid of wire guides (28), Figs. 2 and 3, and in a modification, Fig. 6, the apertures are slots (38) in the core outer circumferential surface whose metal is upset at (40) to stake the strips 24 in position.
Patent GB-1451659-A (GB)
Title: Digital data processing apparatus
IPC: H03K5/153
Filed: 1973-12-13
Abstract: 1451659 Pulse rate discriminators INTERNATIONAL BUSINESS MACHINES CORP 13 Dec 1973 [27 Dec 1972] 57933/73 Heading H3A The presence of a unique digital signal in a sequence of digital signals is detected by determining the difference between the base frequency of the received digital signal and the base frequency of the unique signal, the presence of the unique signal being indicated when the difference is less than a certain value for a certain period. The unique signal may be a start-of-block signal which precedes a data block on a magnetic tape or transmission path, for example. In Fig. 2 the unique signal is shown starting at t2. Signal A, B corresponding respectively to the positive-going and negative-going transitions in the received data signal are applied to units 10, 14, Fig. 1, which deliver ramp signals C, D. The slope of the signals C, D is so chosen that the time taken for the ramp to fall from its initial value to a threshold value Th is equal to half the period of the base frequency, so that comparators 16, 18 provide signals E, F. These pass to EXCL-OR gate 20, resulting in signal G which is high for a duration depending on the present difference between the received and unique signal base frequencies. The signal G is integrated at 22, the integrator output H being indicative of the average frequency difference over a period depending on the integration rate. When the output H reaches a preset level indicating that the received signal base frequency is within a certain range of the unique signal base frequency a signal K changes state to indicate that the unique signal is present. Also, signal K alters the preset level as indicated by the broken line J, so that the indication signal K is now insensitive to minor variations in the difference frequency.
Patent GB-1452144-A (GB)
Title: Transport apparatus for thin flexible members
IPC: B65H5/36
Filed: 1973-12-14
Abstract: 1452144 Guiding thin flexible members by suction SPERRY RAND CORP 14 Dec 1973 [22 Dec 1972] 58006/73 Heading B8A Thin flexible members are guided by the provision of vacuum ports along the centre of each of a pair of edge guides spaced apart a distance sufficient for the member to pass freely between them, the suction on the top surface of the member equalling the suction on the bottom surface of the member. In the Figure, a sheet of paper or plastics 16 is guided at its edges by vacuum ports 21 centrally positioned along the sides of a transport path. A shield 13 may be included at a bend in the path to ensure that the edges of the member 16 remain within the field of the vacuum ports, the member 16 not touching shield 13 since the shield merely increases the suction effect at the adjacent vacuum ports. The apparatus may be used to convey documents forming part of a magnetic memory.
Patent GB-1138800-A (GB)
Title: Frequency shift modulator
IPC: H04L27/12
Filed: 1967-12-21
Abstract: 1,138,800. Frequency modulation; amplifiers; attenuator networks. TELEFONAKTIEBOLAGET L. M. ERICSSON. 21 Dec., 1967 [22 Dec., 1966], No. 58220/67. Headings H3R, H3U and H3W. A frequency shift modulator comprises means for generating a square wave of controllable frequency, an integrator circuit for converting the square wave into a triangular wave, and shaping means for converting the triangular wave to a substantially sinusoidal wave. In Fig. 1 a unijunction oscillator or a multivibrator F0 is controlled in accordance with the input data by a keying circuit N and feeds a pulse shaping circuit T which may be a Schmitt trigger. The resulting square wave feeds an integrating circuit M1 comprising a Miller integrator; since the amplitude of the triangular wave generated by the integrator varies with frequency an amplitude control circuit G attenuates the low frequency square wave so that the resultant triangular wave has a constant amplitude. In Fig. 1 the triangular wave feeds the non-linear attenuator network Dn which shapes the wave into a sinusoidal input to the amplifier F3. In a modification, Fig. 2 (not shown), the attenuator network is replaced by a further integrating circuit (M2) similar to M1. This further network requires further amplitude compensation which may be provided by the control circuit G.
Patent GB-1498619-A (GB)
Title: Hose couplings
IPC: F16L33/207
Filed: 1973-12-17
Abstract: 1498619 Hose couplings EUROPOWER HYDRAULICS Ltd 16 Dec 1974 [17 Dec 1973] 58383/73 Heading F2G A hose coupling comprises an insert 2 with a threaded end 1, pushed into the unreduced end of a laminated hose around which a cylindrical ferrule 3 is located to be swaged inwards by dies 5 which form at least three circumferential depressions axially spaced along the ferrule. A lip 4 converges at one end of the ferrule 3; for larger couplings, the end of the lip 4 may extend axially in a reduced diameter cylindrical shape.
Patent GB-1449282-A (GB)
Title: Car diagnosis-system
IPC: G01M15/02
Filed: 1973-12-17
Abstract: 1449282 Selective signalling SUN ELECTRIC (NEDERLAND) NV 17 Dec 1973 [19 Dec 1972] 58437/73 Heading G4H A car-characterising code read from a codekey supplied with or fixed to a car to be tested by automatic diagnostic apparatus, is compared with a code read from a data carrier to be used in the diagnostic apparatus. Disagreement may disable the test programme. The code-key may be connections between plug sockets in a set of plug sockets fixed in the car and primarily used to pass measuring point signals to the diagnostic apparatus, or it may be a plate (e.g. fixed in the car) having square edge notches (sensed by a row of plunger-actuated switches) or holes or raised regions to represent 1 or 0 bits of the code The code on the data carrier may be in the form of black and white squares.
Patent GB-1241557-A (GB)
Title: Improvements relating to self-cleaning electric ovens
Inventor: RUSSELL WILLIAM MORRIS
IPC: F24C14/02
Filed: 1967-12-30
Abstract: 1,241,557. Heat cleaning ovens. SIMPLEX ELECTRIC CO. Ltd. 11 Dec., 1968 [30 Dec., 1967], No. 68864/68. Divided out of 1,241,556. Heading F4W. [Also in Division A4] In an electric heat-cleaning oven, a dooroperated switch 35 energizes an oven interior light 38 when the oven door is closed, and additional contacts on the switch are connected in the heat-cleaning circuit so that the elements cannot be energized for heat cleaning with the oven door open. A changeover switch 22 has one set of contacts 22a in series with a cooking thermostat 23 and a safety thermostat 24, and a second set of contacts 22b in series with the door-operated switch 35. In the "cook" position, the cooking elements 10 are connected through contacts 22a, while in the "clean" position, heat cleaning elements 12 are connected through safety switches 29, 39 and 30 and contacts 22b to the door-operated switch 35, which is also connected to the oven light 38. The safety switches 29, 39 are associated with a door latch, and the cooking and heat cleaning networks may include common elements.
Patent GB-1419020-A (GB)
Title: Phase shifting device
IPC: G06F1/10
Filed: 1973-12-19
Abstract: 1419020 Phase-shifting circuits COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 19 Dec 1973 [20 Dee 1972] 58913/73 Heading H3T  A device for shifting by substantially 90 degrees the phase of an input signal OA, Fig. 2, comprises a first phase-shifter 1 receiving on an input the signal, whose frequency varies in a narrow band centred on a centre frequency and supply at its output a signal whose amplitude is equal to that of the input signal but whose phase relative to that of the input signal depends on frequency being substantially equal to 90 degrees for the centre frequency. It also comprises a chain of series-connected phase-shifters 2, 3 identical to the first, with its input connected to the output of the first phase-shifter 1, an attenuator 4 with its input connected to the output of the chain, and a summing element 8 having a first input 9 connected to the output of the first phase-shifter 1 and a second input 7 connected to the output of the attenuator 4, the summing element supplying an output phase-shifted substantially by 90 degrees in relation to the input signal over the narrow frequency band. Each phase-shifter may comprise a differential amplifier Q, Fig. 1, with signal input fed to its out-of-phase input over a resistor R1 and to its in-phase input over capacitor C1 in conjunction with resistor R2, overall negative feedback being produced by resistor R3.
Patent GB-1380910-A (GB)
Title: Floor coverings
IPC: D06N7/00
Filed: 1971-12-21
Abstract: 1380910 Laminated products IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Dec 1972 [21 Dec 1971] 59211/71 Heading B5N [Also in Division D1] A process for making floor coverings having an adherent backing of polyurethane foam comprises forming a layer of flexible polyurethane foam and substantially curing, i.e. spraying on to the back of a flexible floor covering a liquid mixture of ingredients capable of reacting together to form thereon a thin coating of polyurethane foam, disposing the cured foam layer in contact with the back of the covering before the foam coating has set, and subjecting the composite body to a predetermined coolant pressure. The floor covering may be a woven or tufted carpet composed of wool, viscose rayon, polyamide, acrylic or polyester fibres or mixtures thereof. The foam layer may be formed by spraying a foam-forming mixture on to a heated, silicone- or wax-coated cylinder and continuous removal of the layer therefrom with optional embossing and additional heating-alternatively, the mixture may be sprayed on to a porous glass-fibre tissue or paper reinforcement which ultimately becomes an intermediate layer of the carpet product. The foam coating may be applied to the foam layer as well as to the covering by provision of a spraying device at the nip of these layers (Fig. 3). Pressure is exerted on the bonded layer by means of an upper endless belt pressed by means of a platen or series of rollers against the composite and a fixed lower support.
Patent GB-1392648-A (GB)
Title: Bis-nitrophthalimides
IPC: C07D209/48
Filed: 1972-12-21
Abstract: 1392648 Bis-(nitrophthalimides) GENERAL ELECTRIC CO 21 Dec 1972 59274/72 Heading C2C Novel compounds of Formula 1 wherein R is a divalent aromatic radical and the -NO 2  groups are situated in the 3,3<SP>1</SP>- or 3,41-positions, are prepared by reacting an aromatic diamine of formula, H 2 N-R-NH 2 , with the corresponding nitro-substituted phthalic anhydride. Examples describe the preparation of phthalimides by reaction of 3-nitrophthalic anhydride, either alone or together with 4-nitrophthalic anhydride, with m-phenylenediamine, 2,4-diamino-toluene, 4,4<SP>1</SP>-diaminodiphenylmethane, 4,4<SP>1</SP>- diaminodiphenylether or 4,41 - diaminodiphenylsulphone. Other specified diamine reactants are pphenylenediamine, 4,4<SP>1 </SP>- diaminodiphenyl, 2,2 - bis - (4 - aminophenyl)propane, bis- (4 - aminophenyl)sulphide, bis - (3 - aminophenyl) sulphone and 1,5-diaminonaphthalene.
Patent GB-1292028-A (GB)
Title: Collapsible reel
Inventor: FRASER THOMAS WILLIAM
IPC: B65H49/30
Filed: 1968-12-13
Abstract: 1292028 Collapsible hose reels HAGO PRODUCTS Ltd 5 Dec 1969 [13 Dec 1968] 59351/68 Heading B8M A collapsible cable or hose reel comprises two resilient coaxial side flanges, a spacer 18 between the flanges coaxial therewith, and ties 22 between the flanges, the flanges and ties having respective hooked rod portions interengaged by flexing the flanges towards each other, the interengagement preventing full restoration of the flanges to their unflexed condition, the centre parts of the flanges being pressed on to the ends of the spacer and rigidly held together by the flexed condition of the flanges. Each flange comprises an outer ring 11 defining the outer periphery of the flange, four inwardly directed radial spokes 12 attached to the ring, and a central socket attached to the set of spokes. The spacer 18 is preferably a tubular member and the outer rings and radial spokes are preferably steel rods which are welded together. The hooked rod portions on the flanges are parallel rods having outwardly hooked ends and being attached to pairs of adjacent spokes. The ties 22 comprise two rectangular frames which fit over opposite pairs of the hooked rods to maintain the reel in its erected position. The socket may comprise a length of tube 15 secured to a flange 16 at one end and closed at the other end by a washer 17, the diameter of the tube 15 being such as to accommodate the spacer member 18. The socket may alternatively be in the form of a pressing.
Patent GB-1359030-A (GB)
Title: Method and apparatus for driving or extracting piles
IPC: E02D13/08
Filed: 1971-12-21
Abstract: 1359030 Pile drivers BOLT ASSOCIATES Inc 21 Dec 1971 [29 Dec 1970] 59480/71 Heading B3H [Also in Division F2] A pile driver or extractor has a reciprocable piston 24 in a cylinder 22 which is closed at its lower end by a piston 60, Fig. 3, or a fixed closure plug 60A, Fig. 21, to define a bounce chamber 34, Fig. 3, in which air or steam is compressed during the downstroke of the piston 24 to cause upward recoil of the piston. The piston 24 preferably does not impact against the piston 60 or plug 60A. The air or steam is supplied to the bounce chamber 34 from a compression chamber 38 via a valve 76 which is opened by the piston 24 as it descends. The valve 76 may have plugging part 93 so that during further descent of the piston 24 the bounce chamber and compression chamber are isolated. The air or steam are supplied by a line 94 to a central chamber 72 connected to the compression chamber 38 by a wide port 102 which is closed by the valve stem 74 as the valve opens and by a continuously open restricted port 100. The air or steam from the bounce chamber 34 is exhausted through ports 106 which are uncovered by the rising piston 24. A muffler assembly 109 surrounds the ports 106 and comprises concentric annular chambers 102, 123 with a steel wool filter 122, Fig. 6. Any oil in the air or steam mixture is trapped in the filter 122 and drips into a reservoir 134 in the annular chamber 123, to provide a supply for a lubricating system (see Division F2). The chamber 23 above the piston 24 has exhaust ports 216, Fig. 1, which may be permanently closed by an elongated plug 230A to provide a double-action stroke for the piston, Fig. 14 (not shown), or the chamber 23 may be closed by a head or head plug 230, Fig. 15, to leave the ports 216 open for a single action stroke. If the piston is raised above its normal upper limit the trapped air between it and the head plug 230 also provides double-action, Fig. 16 (not shown). The lower end of the pile driver or extractor has a detachable coupling 30, Fig. 3, connected to an adapter 32 which fits the pile 28 which may be a pipe pile, H-beam pile or a timber pile. The pile driver or extractor is guided on greased bars 200, Fig. 1, engaged with projections 204, 206. For extracting piles the pile driver assembly is suspended from a cable (236), Figs. 17 and 18 (not shown), of a crane via a fluid pistoncylinder coupling (240). The coupling (240) acts as a shock absorber or an overload protection device. The piston is accelerated upwards as above and the upper closure of the cylinder 22 is arranged to provide for double-action, Fig. 16 (not shown), or even impact. The pile driver assembly is attached to the pile (28), by a loose coupling (250) and the pile is raised by a steady pull on the cable (236) by the crane, and by pressurization of the chamber (244).