baber/WOPTO huggingface dataset:
Patent GB-1494144-A (GB)
Title: Interference suppression circuit arrangements
IPC: H03G3/34
Filed: 1975-05-06
Abstract: 1494144 Interference suppression BLAUPUNKT-WERKE GmbH and ALLGEMEINE ELEKTRICITATS-GES AEG-TELEFUNKEN 6 May 1975 [20 May 1974] 18997/75 Headings H4L and H3T In a circuit arrangement, Fig. 4, for providing a control pulse upon the appearance of interference components 1, 2, Fig. 2, (a) on a signal waveform 3, the waveform and interference (a) are fed to transistor T 1  of a difference amplifier T 1 , T 2 , T 3 , circuit LR 1 C 1  ensuring that signals derived from (a); wherein the signal waveform remains the same, but the interference components induce a damped oscillation, to provide signal (b), Fig. 2; are fed to transistor T 2 , the differences (a)-(b), (b)-(a), see (c), (d), Fig. 2, depending only on the interference being fed to normally cut-off transistors T 4 , T 5 , positive peaks in either waveform (c) or (d) switching on T 5 , or T 4  to charge capacitor C 2  which discharges at a rate determined by resistor R 4  to form the waveform (e), Fig. 2, which triggers monostable 10, whose output represents the control pulse. The latter is fed to a switch (5) Fig. 1 (not shown) in the audio {multiplex stereo} path of a receiver, to block the path from the discriminator (4) to the stereo decoder (6) at the appearance of the interference, the audio signal which was present preceding the interference being supplied by unit (9) in the interim. In the presence of protracted interference at a sufficiently high rate, the control pulses serve to enable the charging of C 3  until transistors T 8  and T 9  conduct, increasing the emitter potential of transistor T 6  to stop all conduction of transistors T 4  and T 5  and hence blocking the provision of further control pulses. Transistor 6 functions normally to ensure that the emitters of transistors T 4  and T 5  have a potential, exceeding their mean base potential by the emitter base voltage drop of transistor T 6 . Alternatively a potentiometer (Rp, Fig. 1) is used to set the emitter potential of transistors T 4  and T 5 . The circuit LR 1 C 1  may be replaced by an arrangement wherein one of the bases of T 1 , T 2  is connected to ground via a capacitor, each base being connected to the other via a resistor. The circuit arrangement excluding the circuit LR 1 C 1  may be formed as an integrated circuit. Transistor T 3  functions as a current source for transistors T 1 , T 2 .
Patent GB-330777-A (GB)
Title: Acid calcium phosphate and method of making same
IPC: C05B1/04
Filed: 1929-06-20
Abstract: 330,777. Haddan, R., (Federal Phosphorus Co.). June 20, 1929. Baking-powders. - Calcium acid phosphate, composed of spheroidal particles, free from sticky or gummy substances, and containing less than 1 per cent of free phosphoric acid, for use as the acid ingredient in baking-powders, effervescent mixtures, self-rising flours, phosphate flours and similar mixtures, is prepared by adding milk of lime of specific gravity 1.20 to concentrated phosphoric acid and spraying the resulting suspension into warm air.
Patent GB-1522243-A (GB)
Title: Printing machines
IPC: B41F31/30
Filed: 1976-05-10
Abstract: 1522243 Driving inking rollers in printing machines LAWTONS OF LIVERPOOL Ltd 6 May 1977 [10 May 1976] 19102/76 Heading B6C A printing machine has a rotary print drum 36 adapted to receive type, a rotary transfer roller 26 for transferring ink from an ink supply 18 to type mounted on the drum, and a transfer drive comprising a rotatable member 42 arranged to contact or engage with an end surface of the drum and an end surface of the roller so that rotation of the drum effects rotation of the roller. The member 42, as shown, may be a roller with tyres, 50 or, alternatively, may be a pair of rigidly interconnected gear wheels engaging with respective knurled rings in the end surfaces (Figs. 5 and 6, not shown). The transfer drive assembly may be removable by screws 54, and is preferably spring-urged as at 56, 58 towards the two end surfaces.
Patent GB-1472982-A (GB)
Title: Mounting for telephone dials
IPC: H04M1/23
Filed: 1974-05-01
Abstract: 1472982 Sets NORTHERN TELECOM Ltd 1 May 1974 [7 May 1973] 19124/74 Heading H4J The description is similar to that of Specification 1,472,981, but claim 1 is directed to a mounting arrangement comprising two L- shaped mounting brackets for attachment to opposite sides of a component in a telephone housing. If desired the brackets 11, 12 (Fig. 1) may be attached to the housing by screws passing through flanges 33.
Patent GB-570901-A (GB)
Title: Improvements relating to nuts and methods of manufacturing the same
IPC: B21D53/24
Filed: 1943-11-17
Abstract: 570,901. Making nuts. SUMMERS, J. M. Nov. 17, 1943, No. 19202. Convention date, June 23. [Class 83 (ii)] [Also in Group XXV] Nuts, particularly anchor nuts, consists of a tapped element 11 and a fibre locking washer 12 retained within a stamped metal housing 10 that may have ears 13 punched at 26 for riveting to a supporting surface. The housing has arcuate sides 15 and flat sides 16, the latter being disposed adjacent the rivets to increase the riveting clearance. The washer and nut are correspondingly shaped and the arcuate sides of the nut are grooved at 19<1>. The top of the shell has an annular and resilient inturned flange 17. On assembly in a press, the ram 27 forces the nut in to be flush with the base of the housing, resiliently deforming the flange. Whilst thus the sides of the housing are depressed as by dies 28 to retain the parts in position.
Patent GB-236063-A (GB)
Title: Improvements in and relating to the production of refractory bodies for electrical or other purposes
IPC: C04B35/18
Filed: 1924-08-13
Abstract: 236,063. Bell, B., and Illingworth, W. H. Aug. 13, 1924. Drawings to Specification. Samples furnished. Pottery materials. - Refractory hard clay bodies such as cores for mercury cut-outs, of the kind described in Specifications 121,305, 172,446, and 200,268, [all in Class 38 (v), Electric switches &c.], and bodies for electrical and other purposes are made from a purified clay containing 50 per cent or more of silica. Such a clay is found in Creech, Dorsetshire. China, ball, or fireclay is excluded. The dried, refined, and finely disintegrated clay is made into a slip, surplus water is removed, and the slip is diepressed to shape under heavy pressure. The product is then drilled, if holes are necessary, and is next fired at a low temperature, 400‹ to 750‹ C. and finally at a high temperature not less than 1300‹ C. The low-firing temperature is gradually raised 1‹ C. per minute to 400‹ C., which temperature is maintained for about an hour and then raised to 750‹ C. at the same rate. The final firing temperature is raised from normal to 1000‹ C. in about two hours and then increased to 1300‹ C. in a further three hours, the temperature being maintained at 1300‹ C. for about four hours. The raw material is dried for a week at 35‹ to 40‹ C., and then rubbed through a fine sieve. The slip is made with water at 100‹ F., passed through a fine mesh lawn and allowed to settle for a week. After drilling, the bodies are placed for ten hours in a temperature of 32‹ F., and then fired as described above.
Patent GB-1147768-A (GB)
Title: An improved capsule for confining an article
IPC: A23L3/06
Filed: 1966-07-07
Abstract: 1,147,768. Containers having telescoping parts. FMC CORP. 7 July, 1966 [19 July, 1965], No. 19257/68. Divided out of 1,147,766. Heading B8P. A container for protecting a jar J comprises an inner holder or cartridge 34 and an outer carrier 36 each having an aperture 88, 98 respectively in its base. The holder 34 has dimples 90 which engage the jar wall to space the jar closure from the base 86 of the holder. Both members 34, 36 are of ferrous metal enabling them to be attracted individually by magnets, and an apertured dish 100 of non- magnetic material in the base of the carrier 36 interrupts magnetic force between them. The jar J may be of glass, plastics or aluminium and be of square or hexagonal cross-section. In a modification, Fig. 3 (not shown), the holder 34 is of plastics, its base impregnated with ferrous material, and both the holder and carrier have apertured side walls. The device is designed to prevent the jar J from breaking when subjected to mechanical or thermal shock.
Patent GB-1200134-A (GB)
Title: Synthetic conjugated filament fibres and a process for the manufacture of the same
Inventor: FUKUMA NORORU
IPC: D01F8/14
Filed: 1968-04-24
Abstract: 1,200,134. Conjugate polyester filaments. ASAHI KASEI KOGYO K.K. 24 April, 1968, No.19304/68. Heading B5B. [Also in Division D1] The components of a side-by-side or sheathcore conjugate filament are polyethylene terephthalate and polyethylene diphenoxyethane- 4,4<SP>1</SP>-dicarboxylate. The polyethylene terephthalate may be a copolymer, e.g. with dimethyl succinate. Production may be by conventional conjugate melt-spinning of the polymers, neither of which must contain more than 0À05% water, followed by stretching at 70- 140‹ C., and optional heat-treatment at 100- 180‹ C. The filaments show a strong crimp. Staple fibre may also be heat-treated as above. Suitable (conventional) stretching/heating apparatus is illustrated.
Patent GB-717663-A (GB)
Title: Improvements in hot-gas reciprocating engines and refrigerators operating on the reversed hot-gas reciprocating engine principle
IPC: F02G1/05
Filed: 1949-07-22
Abstract: 717,663. Refrigerating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 22, 1949 [July 27, 1948], No. 19363/49. Class 29 [Also in Group XXVII] A refrigerator operating on the reversed hot - gas reciprocating engine principle is provided with an auxiliary chamber 13 for supplying a variable amount of working medium to the working space, continuous communication between the chamber and space being effected by a duct 12 having a resistance to flow such that the power output of the engine under operating conditions is decreased by not more than ten per cent and preferably not more than five per cent. As shown, the resistance to flow is varied by a cock 14. The duct may have various crosssections such as circular or annular and is preferably so shaped that the resistance to flow is equal in both directions; also the duct may be filled or partly filled with porous material or fine wire material. The engine shown comprises a .cylinder 1, displacer 2, piston 3, hot space 7, cold space 8, heater 9, cooler 11 and regenerator 10.
Patent GB-1001287-A (GB)
Title: Process for separating polycyclic aromatics from monocyclic aromatics
IPC: C07C7/12
Filed: 1962-05-21
Abstract: Polycyclic aromatic hydrocarbons are continuously removed or recovered from hydrocarbon mixtures also containing monocyclic aromatic hydrocarbons in a series of cyclically interconnected zones containing a fixed bed of activated charcoal adsorbent, through each of which zones a flow of liquid is maintained, by introducing the mixture into one zone and removing raffinate downstream, and further downstream introducing a desorbant and removing desorbate further still downstream and periodically advancing in a downstream direction all the points of introduction and removal by an equal amount.  The adsorbent may be in a single bed or a series of beds 11-121, as shown in Fig. 1.  Mixture to be separated is introduced by line 106 into a liquid stream pumped by pump 133 through line 134 and flows through three beds and then part of the liquid remaining is removed through line 115.  The amount of liquid left to flow into bed 41 should be 75-95% of the total void space in bed 41 during each cycle so that raffinate never flows further than the next adjacent bed as the points of introduction and removal are moved <PICT:1001287/C4-C5/1> downstream.  Beds 51 and 61 will be full of desorbant from previous desorbing steps.  Desorbant is introduced into bed 71 by line 121 and desorbate removed by line 127 for recovery, if desired, of the adsorbed polycyclics.  The excess liquid flowing into bed 101 should be 1.1-1.8 times the volume of void space in that bed in the cycle to flush all excess feed stock from the bed prior to desorption in the next cycle; a flush stream may also be introduced through line 136. Advancement of the points of introduction and withdrawal is effected by means of the rotary valve 105, which is rotated counter-clockwise continuously or intermittently. The kerosene or gas oil feed is introduced at 0.01-1.5 vols. per vol. of adsorbent per minute at 30-300 DEG  C. and up to 30 atmospheres. The desorbant should have a boiling point differing by at least 100 DEG  C. from the adsorbed hydrocarbons and may be benzene, toluene, xylene, cumene, ethylbenzene, n-hexane, n-octane, n-decane, 2,3-dimethyl hexane, 4,5-dimethyldecane or a straight run kerosene: the desorbent may be heated above the feed stream temperature.  The molar ratio of desorbant to adsorbate at any point should be 1-30: 1.
Patent GB-436248-A (GB)
Title: Improvements in or relating to luggage or like carriers for vehicles such as bicycles
IPC: B62J7/00
Filed: 1934-07-02
Abstract: 436,248. Luggage-carriers. LAW, E., Heathland, Dale Avenue, Heswall, Cheshire. July 2, 1934, No. 19425. [Class 136 (i)] In an auxiliary luggage-carrier for motor and I other cycles &c. of the type comprising an anchorage member adapted to be secured to the ordinary carrier, mudguard, or other part of the vehicle, and a luggage frame connected to the anchorage member so as to hang down on one or both sides of the vehicle wheel, the luggage frame is connected to the anchorage member by telescopic members provided with interposed springs or other shock-absorbers. A pair of U-shaped grippers 12 are spaced along the longitudinal members 10 of the ordinary luggage-carrier on each side, and are adjustably clamped thereto by bolts 13. A depending tubular member 14 is bolted at 15 to each gripper 12 so as to support a luggage frame comprising channel members 16, which embrace the members 14 and carry tubular members 17, 18 adapted to slide respectively on and within the members 14. The channel members 16 are connected together by cross members 21 and a plate 22, and the extremities of the cross members 21 are connected together at each side by a double strap 23, which is adapted to receive straps for securing packages to the luggage frames. Grids 24 are pivoted to the channel members 16 by means of bolts 25 so that they can be swung down for use, as shown on the left-hand side, several bolt-receiving holes 29 being provided for height adjustment. Shock - absorbing connections are provided between the luggage frames and their supports, comprising tension and compression springs 28, 28<a>, or fluid vibration-dampers &c. The grippers 12 on opposite sides may be adjustably connected together by a sleeve 30. A backing- board may be attached by hooks &c. to one of the cross members 21 to protect books &c. strapped to the auxiliary carrier ; or the backing-board may carry a textile carrier-bag.
Patent GB-1395188-A (GB)
Title: Printing process
IPC: B41M7/00
Filed: 1972-04-26
Abstract: 1395188 Transfer printing CIBA-GEIGY AG 26 April 1972 [26 April 1971] 19474/74 Headings D1B and DIP Transfer prints on textile and non-textile materials are obtained by applying a disperse dye or optical brightening agent containing mercap hydroxyl and/or amino groups by the transfer printing process at 80 to 240C, fixation of the print being effected using an isocyanate of washed isocyanate which is also applied by the transfer process at 80 to 240C, before, during or after the dyestuff transfer. Wool, silk, polyester, cellulose acetate, polyurethane, polyvinylchloride, synthetic polyamide, acrylic and cotton materials may be printed, if desired under reduced pressure. Azo, anthraquinone and styryl dyes may be used, the preferred isocyanates being of formula A-OC-HN-(CH 2 ) m -NH-CO-A in which A is an alkoxy, aryloxy, sulphite, amine, carboxylic or sulphonic amide, urethane, ureido, amino, carboxylic acid, cyano, cyanamido or methylene-active group and m is 2, 4 or 6. Auxiliary carriers for transfer printing which comprise a flexible sheet having printed thereon a disperse dye as above and an isocyanate or which is printed with isocyanate only are claimed.
Patent GB-1371139-A (GB)
Title: device for the automatic handling of empty containers
IPC: B65G47/14
Filed: 1972-04-27
Abstract: 1371139 Conveyers and hoppers for orientating articles L G DUBUIT 27 April 1972 [28 April 1971 18 Nov 1971] 19646/72 Headings B8A and B8S Empty bottles 11 deposited randomly in a hopper 10 are directed on to endless belt conveyers 16 which feed push-plate conveyers 25. Devices 45 at the head of the conveyers 25 ensure that the bottles are uni-directionally orientated before they drop into shoots 13 from which they are discharged by a conveyer 14. The belts 16 in the hopper 10 are each disposed between two partitions 20 which are caused to oscillate by cams on a common driven shaft 22 to orientate the baffles in one direction or the other along the belts 16. Each belt feeds a conveyer 25 having side walls 90 and supports 91 for guiding the bottles which, if their open ends are uppermost, have these ends slowed by engagement with brush-like members 50. These bottles then pass, open ends upwards, into the shoots 13. The bases of the other bottles are not slowed by the brushes and the bottles remain in the correct upright attitude. For controlling the bottles in the shoots 13, a stop and locating member 70 having compartments 71 corresponding to the shoots is horizontally movable under the control of cams 76 rotated with the conveyer 14. These cams also control a retractable stop 78 in each shoot. The conveyers 25 have a common drive but any one may be undriven in the event of jamming of its associated shoot, each shoot having a sensor 80 for controlling a drive tensioning pulley 36.
Patent GB-843772-A (GB)
Title: Improvements in and relating to instruments for use in removing egg shells or parts thereof
IPC: A47G19/28
Filed: 1956-06-25
Abstract: 843,772. Eggs topping. FORD, P. C. Sept. 5, 1957 [June 25, 1956], No. 19658/56. Class 28(2). An egg topper comprises 2 arcuate levers with concave toothed edges 3 and hinged directly to each other at 4. The teeth 3 are parallel when closed together. 5 are stop abutting surfaces. Stops may also be provided at the hinge 4 to limit the opening.
Patent GB-480354-A (GB)
Title: Improvements in or relating to processes and apparatus for insulating tubes and the like against the action of heat and cold and atmospheric influences
IPC: B29C48/49
Filed: 1936-07-16
Abstract: 480,354. Coating tubes &c. with plastic compositions by extrusion. LENOIR, J. July 16, 1936, No. 19761/37. Convention date, July 16, 1935. [Classes 70 and 87 (ii)] Tubes, metal bars, &c. are coated with a material that provides thermal insulation and protection against atmospheric action by working up the material in uniform particle size or powder form with up to 25 per cent by weight of a binder to form a difficultly mouldable plastic mass and then applying the mass to the tube &c. by extrusion under a pressure of from 10 to 150 atmospheres absolute. The material may comprise kieselguhr, asbestos, cork, wood flour, felt, fireclay, wood charcoal, ash, &c. and the binder may comprise waterglass and water. The plastic mass is applied to the tube &c. by an apparatus comprising two cylinders 1 having pistons 2 and connected by an elbow 10 to a common die aperture 6 which is interchangeable. The tube 3 is advanced by rollers 4 through an inlet 5 and the die 6. The rollers 4 may be geared to the pistons 2. The cylinders 1 can be swung about spigots 9 for filling or alternatively the pistons may be adapted to be swung aside. In a modification, the cylinders 1 are arranged at an angle to one another. The Specification as open to inspection under Sect. 91 comprises also an apparatus having a single cylinder 1 arranged at right-angles to the direction of travel of the tube 3 and provided with a filling opening closed by a removable cover. This subject-matter does not appear in the Specification as accepted.
Patent GB-887722-A (GB)
Title: Improvements in and relating to vertical screw conveyors
Inventor: MICHALOWSKY HERBERT
IPC: B65G33/04
Filed: 1958-06-20
Abstract: 887,722. Screw elevators. WERKZEUGMASCHINENFABRIK BAD DUBEN VEB. June 20, 1958, No. 19801/58. Class 78 (1). A vertical screw conveyer 17 (Fig. 1) for raising articles made of magnetic substances and of definite geometric shapes, e.g. balls, is surrounded by a casing 19 in or on the walls of which is secured an electromagnet 22. The screw is made preferably of a diamagnetic substance (e.g. a plastic such as P.V.C. or polyethylene or glass fibre reinforced polyester), and the casing of ferromagnetic material. The articles pass into the casing from a hopper 21 and are discharged from it through a shoot 23. Vertical slots are formed diametrically opposite to each other in the walls of the casing. The outlet from the hopper 21 extends into the lower end of one of them and the pole shoes of the electromagnet 22 extend into the other and are insulated therefrom. In a modification, a permanent magnet system arranged in the form of a spiral is inserted in the walls of the casing, and in another modification the magnets are secured to machined surfaces on the outside of the casing. The top of the casing may be enlarged and contain leafspring strippers secured to the shaft 16 which press each article outwards and into an aperture leading to the shoot 23. The strip is driven by an electric motor 6 through an infinitely variable gear 5, worm gearing 4, 7 and a single-tooth clutch 13, 13<SP>1</SP>. The lower slidable part 13 is associated with a switch 15 for the circuit of the motor.
Patent GB-893560-A (GB)
Title: Parametric amplifier
Inventor: DUNSMUIR ROBERT
IPC: H03F7/04
Filed: 1959-06-10
Abstract: 893,560. Parametric amplifiers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 24, 1960 [June 10, 1959], No. 19885/59. Drawings to Specification. Class 40 (9). A travelling wave amplifier comprises a length of transmission line or waveguide having variable reactance distributed therealong with which there is provided a ferromagnetic isolator extending in the direction of propagation of the signal being amplified. The isolator, in as much as it introduces loss in waves travelling in the opposite direction to the signal wave, prevents oscillation due to waves reflected from the termination. The isolator commences at a point where the magnitude of the signal is not too high so that any reflections from the near end of isolator will not themselves cause oscillations. The other end of the isolator lies within the transmission line at such a point that the gain between this end and the load is insufficient to cause this portion to oscillate, whilst at the same time the gain between the input and the load is insufficient to overcome the backward attenuation of the isolator sufficiently to cause oscillation due to backward reflections from this end. The isolator is energized by an external magnetic field. In a modification the isolator is of the resistance sheet field displacement type and consists of a strip of ferrite material having one face covered with resistive material. This can be located in contact with the internal surface of the waveguide to facilitate heat dissipation.
Patent GB-350750-A (GB)
Title: Copper-silicon-zinc alloy
IPC: C22C9/04
Filed: 1930-07-01
Abstract: Copper-silicon-zinc alloys contain 80-90 per cent of copper and 2-5 per cent of silicon.  1-3 per cent of one or more of the following metals may also be present: aluminium, manganese, cobalt, nickel, chromium, zirconium, tungsten, molybdenum, titanium and tin.