baber/WOPTO huggingface dataset:
Patent GB-1393152-A (GB)
Title: Noise reduction circuit
IPC: H03G9/18
Filed: 1972-05-01
Abstract: 1393152 Noise suppressor PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 May 1972 [4 May 1971] 20103/72 Heading H4R Noise reduction system which reduces the level of low level high frequency signals comprises a first path including an all pass filter F1 and a second, parallel, path including a high pass filter F2 and a gain control circuit which has a gain which reduces sharply when the signal exceeds a predetermined threshold. The outputs of the two paths are combined in antiphase, at 0, and the gains of the two paths are such that high frequency signals in the two paths cancel at levels below the predetermined threshold. Fig. 4, shows the preferred embodiment in which an input stage Trl, a resistor R5, and a capacitor C2 form an all pass filter having a transfer function to an output point at the junction of C2, R5, which connects to the mixing circuit 0. The signal at the collector of Tr1 feeds a high pass filter F comprising two RC stages C3, R7, C4, R10, R11 and a feedback stage including transistor Tr2. The filter output is fed via an amplifier stage Tr3 provided with a limiter D5, to the gain control stage B1 which only passes signals up to a predetermined level to the mixer circuit 0. The high pass filter F has a transfer function which gives an overall transfer function of the circuit which corresponds to the transfer function of a third order low pass filter having a Butterworth or maximum flatness response with a phase lag which corrects the lead produced in conventional tape recording equalization circuits.
Patent GB-682893-A (GB)
Title: Improvements in or relating to reciprocating engines
IPC: F01M1/04
Filed: 1950-08-14
Abstract: 682,893. Lubricating reciprocating engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 14, 1950 [Aug. 17, 1949], No. 20115/50. Class 12 (iii). In a reciprocating engine, downward motion of a piston 1 compresses the gas in a crankcase 5 and forces oil 6 through an aperture 9 into an auxiliary reservoir 7. On upward movement of the piston, the pressure in the crank-case is reduced and oil is forced from the reservoir 7,  out of the aperture 9, to impinge on a baffle or gauze 10 where it is atomized to lubricate the moving parts within the crank-case.
Patent GB-722066-A (GB)
Title: Improvements in or relating to rotary filters for liquids
Inventor: GAUL PETER STEWART
IPC: B01D35/20
Filed: 1952-08-13
Abstract: 722,066. Filters. DAVEY, PAXMAN & CO., Ltd. Sept. 15, 1953 [Aug. 13, 1952], No. 20392/52. Class 46. A filter cake tamping device for an inward flow rotary drum suction filter comprises a round bar 3 extending axially of and in close proximity with the drum periphery 1 and is actuated to and from the cake by discs 4 mounted on each end of a driven shaft 5 ; the hammer bar 3 being offset with respect to the shaft 5. At the moment of impact the hammer bar 3 travels in the same direction as the drum periphery.
Patent GB-320417-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of artificial silk
IPC: D01D7/00
Filed: 1928-07-14
Abstract: 320,417. Wade, H., (Syntheta Akt.-Ges.). July 14, 1928. Winding-machines; spindle-driving apparatus. -In machines for spinning artificial silk of the kind wherein a solution is delivered by pumps to nozzles from which it is extruded as filaments which are coagulated or dried and wound upon bobbins, the pump-driving shaft 7 and the bobbin-driving shaft 5 are respectively driven from the main shaft 12 through infinitely variable change-speed gearing comprises cone-beltmechanism 42, 43 and 15, 17, and the range of variation is adjustable by means of interchangeable gears interposed between the pulley 43 and the shaft 7, and by interchangeable gears 22, 23 interposed between the pulley 17 and cone-belt mechanism 24, 26 by which the speed of the bobbin-driving shaft 5 is automatically adjusted in known manner in accordance with the diameter being wound. The shaft 12 is driven from an electric motor 9 through gear wheels 10, 11 and is connected to the shafts of the pulleys 42, 15 by clutches 38, 13. Specifications 241,190 and 250,198 are referred to.
Patent GB-876254-A (GB)
Title: Method of forming the sealing member of valves comprising a body member, a valve closure member and a sealing member interposed between the two valve members
IPC: F16K5/04
Filed: 1957-12-04
Abstract: 876,254. Valves. SINKLER, D. Dec. 4, 1957 [Dec. 13, 1956], No. 20573/60. Divided out of 876,253. Drawings to Specification. Class 135. The subject-matter is substantially the same as that of Specification 876,253 but the claims relate to a method of forming the sealing member to provide portions of greater resistance to deformation.
Patent GB-123961-A (GB)
Title: Improvements in and relating to Apparatus for the Electrical Protection Against Corrosion, Pitting, and the like, of the Tubes, Ferrules, Doors, and other Parts of Surface Condensers and the like.
Inventor: KETTLE LAURENCE JOSEPH
IPC: F28F19/00
Filed: 1918-12-11
Abstract: 123,961. Kettle, L. J. Dec. 11, 1918. Corrosion, preventing.-Relates to means for protecting the tubes and other parts of a surface condenser or the like against corrosion and pitting by passing an electric current from an insulated electrode in the condenser through the liquid to the parts to be protected. An electrode consists of a metallic grating d so formed and arranged as to cover the full area of tubeplate b without interfering with the free flow of liquid into the tubes. The electrode is secured by wood, fibre, or like plugs e inserted tightly in the ends of the tubes.
Patent GB-919644-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/38
Filed: 1959-06-16
Abstract: 919,644. Windscreen wipers. TRICO PRODUCTS CORPORATION. June 16, 1959 [June 16, 1958], No. 20629/59. Class 138 (1). A windscreen wiper blade comprises a rubber 29 and a resilient backing strip 20 formed of two longitudinally extending side parts 31 arranged such that, when the blade is straight, the side parts 31 are inclined in opposite directions from the plane of maximum stiffness of the blade, and when the blade is curved, portions of the side parts 31 are deformed in a manner which reduces their inclination to the plane of maximum stiffness. In one embodiment, the backing strip 20 is made from an integral piece of sheet metal (Fig. 5) with end straps 32 of V-shape in end elevation joining the side parts 31 which assume the position shown in Fig. 4 when the blade is on a flat portion of the windscreen. The slot 30 between the side parts 31 houses a neck portion 34 between two broad lateral portions 36, 37 of the rubber 29. A wiping lip 38 having reinforcing lips 39 is connected to the underside of the portion 37. An enlargement 41 is provided near one end of the slot 30 to permit the threading of the rubber 29 into the backing strip 20. When the blade moves to a curved portion of the windscreen, that part of the backing-strip 20 over this portion assumes or approaches the flattened position shown in Fig. 7. As this occurs, that is as the inclination of the side parts 31 to the plane of maximum stiffness (which is horizontal in Figs. 4 and 7) declines, the stiffness of the blade in the plane of minimum stiffness (which is vertical in Figs. 4 and 7) decreases. An alternative form of backing strip (Fig, 9, not shown) has a gradual curvature in cross-section to provide the same results described above relative to the backing-strip 20. Since the stiffness of these backing strips declines as they become more bent, the pressure distribution along the wiper blade is more nearly uniform under all conditions of curvature than is the case with a blade with a backing strip which has simply the form of one or more flat strips. Specification 919,645 is referred to.
Patent GB-873885-A (GB)
Title: Web feeding and cutting device
Inventor: BROOK LEONARD
IPC: B26D1/04
Filed: 1959-06-17
Abstract: 873,885. Cutting webs. FORGROVE MACHINERY CO. Ltd. May 19, 1960 [June 17, 1959], No. 20852/59. Class 31 (1). [Also in Group XVI] Apparatus for feeding and cutting a thermoplastic film comprises a travelling belt 13 for traversing a web 10 of film continuously past a rotary heated knife or wire 14, and a suction drum 15 for transferring the leading edge of the web between sets of conveyer belts 16, 17 just before the cutter operates, the'belts 16, 17 being driven at a speed substantially greater than that of the belt 13 for rapidly pulling each severed portion of the web away from the cutter. Rollers 12 feed the web from a reel 11 to the belt 13 at a speed slightly less than that of the belt.
Patent GB-597313-A (GB)
Title: Improvements in operating mechanism for the retractable members on board aircraft
IPC: B64C25/24
Filed: 1945-08-14
Abstract: 597,313. Toothed gearing. AIR-EQUIPEMENT. Aug. 14, 1945, No. 20864. Convention date, April 8, 1941. Addition to 495,759. [Class 80(i)] [Also in Group XXXIII] In a driving-joint for retractable members on aircraft as in the parent Specification, a speed-reducing transmission, which comprises an epicyclic gearing one of the wheels of which co-operates with a clutch or coupling arranged to control the operative connection of the transmission part on one side of this wheel to the transmission part on the other side, the clutch or coupling is a progressively-acting friction coupling. The casing 1 of the transmission shown has fastened to it bars 4, to which other bars 5 are pivoted co-axially with the casing. The second part 7 of the joint is constituted by a ring connected by a rod (not shown) to the bars 5 and mounted in bearings at the middle of casing 1. A motor 2 drives an elastic shaft 9 carrying a gear - wheel 28 driving a circularlyarranged set of shafts and toothed wheels forming a series of reduction gears driving a central toothed wheel 42 which is the centre sun-wheel of an epicyclic gearing with planet wheels 43 meshing internally with an inner set of teeth of a wheel 45. While the wheel 45 is held against rotation by the multi-plate frictional coupling 46, 47 the carrier 44 of planet-wheels 43 supplies a driving torque for the two epicyclic gears on the left of the carrier and which are geared to internal teeth of part 7. With the exception of the final epicyclic gearing the whole of the reduction train is mounted in drums attached solely by flanges 18 to the casing 1. When the motor is started wheel 45 is free to rotate and torque is not transmitted to the last two epicyclic gears until the wheel 45 is restrained by the coupling 46, 47 which is acted upon by centrifugally-operated members 67, Fig. 4, pushing forwardly rods 61 applying pressure through springs 60 to the friction plates. If the resistant torque is too high the coupling will slip and thus excessive pressure on the transmission gear wheels is avoided. When the gearing is at rest and the gear wheel 45 is therefore free a force such as the weight of a landing-gear will work the point, since only the epicyclic gear requires to be turned. In order to allow a slight tilting of the axes of the successive epicyclic gears these are centred only by the engagement of their gear teeth.
Patent GB-759031-A (GB)
Title: Improvements in and relating to flexible conveyors
Inventor: DIXON NORMAN HENRY PRICE
IPC: B65G19/28
Filed: 1953-07-28
Abstract: 759,031. Endless conveyers. CRAWLEY INDUSTRIAL PRODUCTS, Ltd. Oct. 28, 1954 [July 28, 1953], No. 20920/53. Class 78 (1). A framework for a conveyer consists of an inter-articulated series of open-ended pans each consisting of a plate a supported by longitudinal members b, the ends of which have inserts d for receiving connector members g for adjacent pans, each insert having a lug e or a similarly shaped recess so that the lugs and recesses of the opposite ends of adjacent pans interengage to provide a bearing surface for one pan to rest on the next with freedom of small angular movement relatively thereto. One end of each plate a is joggled and tapered at a<SP>1</SP>, Fig. 3, to lie beneath the plain end of an adjacent plate, whilst the sides of each plate are welded to ribs c welded to the members b. The ribs c stop short of each end of the web of the members b which is there cut away to form a rectangular open-ended frame in which an insert is secured by welding. Each insert is formed with a step d<SP>1</SP> on which rests and is welded the adjacent side margin of the plate a. The connectors g which are welded into each of the two inserts d at one end of each pan are closed at their inner end and bored at their outer end to receive the shank of a bolt h. At the other end of the pan each insert receives the end of the connector of an adjacent pan and is formed with a partition i having a hole i<SP>1</SP> through which passes the shank of the connecting bolt h of an adjacent pan. Each bolt has a plain portion h<SP>1</SP> of its shank of larger diameter than the threaded portion so as to provide a shoulder up to which a securing nut is tightened. A block f is welded across each insert and formed with a notch f to receive the shank of a bolt by which a spillage plate (not shown) extending along each member b may be secured.
Patent GB-330165-A (GB)
Title: Improvements in or relating to electric dry cells
IPC: H01M4/06
Filed: 1929-07-08
Abstract: 330,165. Siemens Bros. & Co., Ltd., (General Dry Batteries, Inc.). July 8, 1929. Cupped articles. - The zinc container of a dry battery is made by first drawing a seamless cylinder closed at one end and then deforming the walls of the cylinder to produce the required cross-section. The deforming process may be carried out by drawing the cylinder through a square die using a square mandre as the inner drawing punch. In another method a mandrel 2 of square, rectangular or other polygonal shape is forced into the cylinder 1 which is then compressed in a vice having similarly shaped jaws 3, 4. The diagonal of the mandrel 2 may be of slightly greater length than the diameter of the cylinder 1 The cylinder, after having been deformed to the required shape, may be subjected to a further drawing process.
Patent GB-984426-A (GB)
Title: Improvements in or relating to heating and cooling arrangements for machines operating upon plastic materials
Inventor: AINLEY ALFRED JOHN
IPC: B29C48/09
Filed: 1961-06-09
Abstract: 984,426. Heating mixers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 24, 1962 [June 9, 1961], No. 20955/61. Heading B1C. [Also in Division B5] A heating and cooling arrangement on the working cylinder of a mixing machine comprises a cylindrical sleeve 1 of non-magnetic material surrounding the working cylinder 2 with clearance to provide a cooling channel, a central entry duct 4 for delivering cooling fluid into the cooling channel to be discharged through outlet ports 5 at opposite ends of the sleeve 1, and a pair of preformed primary induction coils 6, 7, each totally enclosed in axially spaced casings 8, which are preferably of magnetic material such as mild steel, mounted upon sleeve 1. The cooling medium may be air or a forced water spray.
Patent GB-692401-A (GB)
Title: Book shelf
IPC: A47B55/02
Filed: 1951-09-05
Abstract: 692,401. Bookshelves. AXBERG, G. F. Sept. 5, 1951 [Sept. 5, 1950], No. 21015/51. Class 52(i) A bookshelf comprises parallel wires which extend in the longitudinal direction of the bookshelf and which are attached to at least four bent supporting wires to form two metal wire gratings disposed at right angles to each other. As shown, the bookshelf has a closed frame of metal wire consisting of horizontals 4, 11 and sloping sides 6, 6. Supporting Wires 1, 3 bridge the frame and are bent at right angles to form, with parallel longitudinal wires 2, 16, the gratings. The wires are spot welded at the intersections and the bookshelf is coated with plastic by dipping or is sprayed with lacquer or enamel. The wires 6, 13, may be extended to join a wire 12 and may form an acute angle 26 to strengthen the device. In modifications the frame may be produced by bending two wires and the horizontal longitudinal wires may be extended and bent at an angle to reinforce the device. In a further modification the vertical portions, of the wires 1 are provided with outwardly bent parts to space the bookshelf from the wall and in a bookshelf intended to be placed on a table the gratings are inclined from the vertical and horizontal planes respectively and the ends may be formed of metal, synthetic resin or wood plates.
Patent GB-1085007-A (GB)
Title: Trigger operated tool handle switch
IPC: H01H5/04
Filed: 1966-05-12
Abstract: 1,085,007. Retractive switches. ARROW ELECTRIC SWITCHES Ltd; May 12, 1966 [Oct. 24, 1965], No. 21029/66. Addition to 1,073,286. Heading H2B. The switch of the parent Specification is modified by the provision of two U-shaped springs (165a, 165b) in place of the single spring (65) and a finger (171) on a sliding member (170) compresses a respective spring in each direction of operation to perform a pushing action on the cradle (160) instead of the pulling action in the parent embodiment. A simpler form of moving contact is also disclosed.
Patent GB-1045767-A (GB)
Title: Heating and steam generating subassembly for a pressing iron
IPC: D06F75/18
Filed: 1964-05-21
Abstract: 1, 045, 767. Pressing irons. SUNBEAM CORPORATION. May 21, 1964 [Aug. 5, 1963], No. 21044/64. Heading D1A. A sole plate assembly for a pressing iron comprises embedded heating element having terminals accessible from one end of the sole plate, a steam generating chamber extending over substantially the entire portion of said element, and parts disposed on both sides of said element, connecting said chamber with the ironing surface of the sole plate. As shown, a cover 12 is secured by screws to a sole plate 11, the cover and sole plate having co-operating ribs defining a low pressure steam chamber 18, and a high pressure steam chamber 25 for powering a water spray. The sole plate has a U-shaped rib 11a supporting the heating element 15 having terminals 16a, 16b. Ribs 11b, 11c, projecting from rib 11a, co-operate with ribs 12b, 12c to define a section 18a adjacent the bight of rib 11a. Water is fed to section 18a via an aperture 19 in the cover, and the steam thus generated flows via a passage 18b into a section defined by arcuate ribs 11d 12d, and then flows via passages 18e, 18f into a section 18g defined by ribs 11e, 12e; 11f, 12f and 11g, 12g. From section 18g steam flows via passages 18h, 18i into rear sections 18j, 18k defined by the upper surface of rib 11a co-operating with rearward extensions of rib 12g and outer ribs 12h, 12i. Steam also flows via passages 18h, 18i into a U-shaped section 18m defined by the upper surface of rib 11a and ribs 12j. Sections 8j, 18k and 18m communicate with the outer surface of the sole plate via discharge apertures 22 positioned on both sides of element 15. Chamber 25 lies outside chamber 18, being defined by ribs 11a, 11k and cooperating ribs 12j, 12k. Water enters chamber 25 through an aperture 26 in the cover at one end, and steam leaves chamber 25 through an aperture 26 in the cover at the other end.
Patent GB-316868-A (GB)
Title: Improvements in or relating to electrical train influencing systems
IPC: B61L3/12
Filed: 1929-07-09
Abstract: 316,868. Vereinigte Eisenbahn-Signalwerke Ges. Aug. 4, 1928, [Convention date]. Track apparatus actuating signals on trains. -Relates to train control apparatus as described in Specification 294,870 which utilizes an alternating current circuit with capacity and saturated inductance having two stable working conditions, one with a large and one with a small current, the circuit being tipped from one condition to the other when the train passes a track circuit having inductance and capacity which is closed if the track signal is at danger. The track circuit is tuned or untuned according to the desired normal current condition in the tipping circuit. According to the present invention the circuit is started in the large current condition, independent of varying the generator potential, by providing means for temporarily increasing the voltage in the circuit or for temporarily reducing the circuit capacity or inductance. The circuit is tipped to the small current condition on passing a track circuit tuned therewith. As shown in Fig. 2, the track-impulse receiving element 3 has an additional winding 11 temporarily energized from the generator 1 by closing a switch 12 to give the required additional voltaga in the circuit comprising the saturated inductance. 2, condenser 5, and relay 4 by which the train control is effected.
Patent GB-777409-A (GB)
Title: A coupling for connecting a throughflow appliance in a pipe line
IPC: G01F15/18
Filed: 1955-07-21
Abstract: 777,409. Pipe couplings. KROMSCHRODER AKT.-GES. July 21, 1955 [July 26, 1954], No. 21127/55. Class 99(1) An adjustable intermediate element is fitted between the common coupling elements of a throughflow appliance and an adaptor when the appliance and adaptor are coupled together and the intermediate element is so constructed and the side by side conduits of the adaptor and the throughflow appliance are so arranged that by adjustment of the intermediate element either one of the side by side conduits of the adaptor can be connected with the inlet conduit of the throughflow appliance. Referring to Figs. 1, 2, 3, and 5 the connection 8 of an appliance such as a gas meter is connected to the flange 4 of a fitting 1 with a disc 17 therebetween. In the position of the disc shown in Fig. 5 the end 3 of the fitting is connected with the passage 10 of the connection 8 and the end 2 with passage 11. By turning the disc through 90 degrees the connections are reversed. In another embodiment both the fitting 1 and the connection 8 have webs as indicated at 34, Fig. 8. Holes 27, 28, 29, 30 are provided for a dowel pin which enters a hole 31 in the disc 17. The disc has a central hole 23 for a spigot pin 24. The disc may form a gasket. As shown in Fig. 10 it comprises a metal disc 20 provided with packings 21, 22 The fitting of pressure regulators is referred to.
Patent GB-1064204-A (GB)
Title: Electrophotographic reproduction
IPC: G03G13/22
Filed: 1964-05-22
Abstract: 1,064,204. Electro-photographic processes. EASTMAN KODAK CO. May 22, 1964 [May 22, 1963], No.21174/64. Heading G2H. An imagewise electrostatic charge pattern is formed on an insulating layer 12, placed or coated on a photo-conductive layer 10 carried by or in contact with a conducting layer 11, by imagewise exposing the layer 10 to radiation which induces an imagewise conductivity pattern and applying a uniform unipolar electrostatic charge to the insulating layer while the imagewise conductivity pattern is present. In one Example (1) a photoconductive layer of zinc oxide in binder is coated on a paper support on an earthed metal plate. The zinc oxide layer is covered with a sheet of polyethylene terephthalate and uniformly charged from a fine wire at a negative potential and then exposed imagewise. The assembly is recharged, flooded with light uniformly, and developed by cascading with positively charged resinous toner particles carried by silica beads to produce a negative from a positive original. The developed image may be transferred to a receiving surface and fixed by heat or fixed by lacquering on the insulating sheet. In other Examples, (2) flooding with light was omitted, (3) initial Charging was omitted, and (4 and 5) the photo-conductive surface was charged and exposed before covering with insulating material.