baber/WOPTO huggingface dataset:
Patent GB-1423452-A (GB)
Title: Storage album for cassettes
IPC: G11B23/023
Filed: 1973-05-23
Abstract: 1423452 Storing cassettes KARL HIRSCH OHG PLASTIKWARENERZEUGUNG 23 May 1973 [29 May 1972] 24668/73 Heading B8P A folder for storing cassettes contained in boxes 7 comprises a cover 1, and a number of receptacles 6 each of which contains one cassette box, there being a clearance between the rear wall of the box and the receptacle so that the lid of the box can be pivoted upwardly and the cassette removed without taking the box out of its receptacle. The receptacles are deep drawn and consist of longitudinal and transverse walls 4, 5 respectively and have projections 13, 15 (Fig. 3) on the walls to provide a tight fit for the box. A clearance at 14 and 18 enables the cover 8 of each box to be opened. Cutaway parts 19 of the walls enable a box to be withdrawn from its receptacle.
Patent GB-1382570-A (GB)
Title: Method of electroless nickel plating
IPC: C23C18/16
Filed: 1973-05-23
Abstract: 1382570 Electroless nickel plating AIKOH CO Ltd 23 May 1973 [24 May 1972] 24751/73 Heading C7F An electroless Ni-plating solution containing e.g. nickel sulphate and sodium hypophosphite is passed through a filter having a mesh size of not more than 5 microns.
Patent GB-1107415-A (GB)
Title: Apparatus for lifting, pre-straightening and transporting the beginning of a strip of material which is to be unwound from a supply coil
IPC: B21C47/34
Filed: 1965-06-11
Abstract: 1,107,415. Unwinding; straightening. I. UNGERER. 11 June, 1965 [13 June, 1964], No. 24800/65. Heading B3E. Apparatus for lifting, pre-straightening and transporting the beginning of a strip of material which is to be unwound from a supply coil comprises an upper and a lower roller and a wedge member, the rollers being adjustable in respect of their distance apart and their respective distances from the supply coil and being arranged to draw the beginning of the strip from the supply coil over the wedge and to pass the strip between them, at least one of the rollers being driven, the rollers being adjustable so that the angle to the vertical of the plane containing their axes can be varied. A wedge member 11 on the end of a pivoted support 13 is brought up against a coil 10, as shown, by piston and cylinder means 14, a roller 8, on an arm 4 pivoted at 1 to an arm 3 pivoted to the support 13, being in a raised position away from a roller 6 on the support 13. The strip is then fed off the coil 10, by an auxiliary roller 15, over the wedge 11 and between the rollers 6, 8, whereupon the coil feed is stopped and the roller 8 lowered by piston and cylinder means 2 to grip the strip against the roller 6. The assembly is then moved away from the coil 10 by the piston and cylinder means 14, the strip being thereby drawn from the coil. Piston and cylinder means 7 then operates to rock the arms 3, 4 and move the roller 8 counterclockwise around the roller 6. Strip is then fed off the coil by the roller 15 and by driving the roller 6, the arrangement of the rollers 8, 6 serving to straighten the strip fed therethrough. The strip then passes over a table 23 to a roller leveller 25, the roller 8 being then raised to disengage the strip. The parts may be actuated by motor-driven spindles. Instead of being pivoted at 28 the apparatus may be mounted on means movable up to or away from the coil.
Patent GB-1433274-A (GB)
Title: Discriminating circuits
IPC: H03K5/1532
Filed: 1974-06-05
Abstract: 1433274 Binary pulse detecting circuits INTERNATIONAL BUSINESS MACHINES CORP 5 June 1974 [5 July 1973] 24810/7 Heading H3T A peak detector for bipolar signals comprises a capacitor for coupling input signals to upper and lower level clamps and means indicating when the clamps are operating and thus when a signal peak is followed by an excursion-equal to -the difference between the clamping levels. In Fig. 2 when the voltage at 16, following changes at the input 12, exceeds voltage V 1  the clamping diode 44 conducts and luminesces, causing a photo-transistor 50 to set a latch 50. The capacitor becomes charged to a voltage equal to the difference between the signal peak and V 1  and when the input signal decreases in voltage by an amount V 1 -V 2 , clamping diode 46 luminesces until the peak is reached, resetting the bi-stable circuit. In Fig. 6 the clamps are in the form of diode feedback amplifiers 82 and 86 biased at inputs 3 and 5 by a potentiometer 104, 108, 106 of which 108 may be variable. When the input V in  causes the voltage V j  the upper threshold value at 3 a step in output occurs and this is differentiated at 122 to produce a pulse for setting-a bi-stable circuit. 26. When, after the peak, the input voltage decreases by the difference between the thresholds a step occurs at the output of amplifier 86 sufficient to cause a pulse to pass through a Zener diode 132 to reset the bi-stable circuit. Any slight decrease-in the input voltage during the positive peak can also produce a pulse at the differentiator output but this does not affect the state of the bi-stable circuit. In Fig. 8, not shown, the feedback diodes are replaced by emitter follower circuits (e.g. 182, 186, 190, 192, 194) and details of the circuitry are given.
Patent GB-644977-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/26
Filed: 1948-09-23
Abstract: 644,977. Steam turbines. HALL, J. S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 23, 1948, No. 24906. [Class 110(iii)] In a high-pressure turbine having an inner stator shell 1 within an outer casing 2, the nozzle chamber 16 and nozzle passages 19 are formed in the end wall of the casing 2. The end wall is of conical or spherical exterior and the chamber 16 is of a diameter substantially less than that of the outer casing. The shell 1 is located in the casing 2 by interengaging flanges 14, 15 and is supported by ring projections 6.
Patent GB-488598-A (GB)
Title: Separation of a lighter fluid from a heavier fluid in thermal elements and other apparatus
IPC: G01K5/02
Filed: 1937-09-13
Abstract: 488,598. Centrifugal separators ; thermostats. RAMSEY, A. R. J. (Automatic Control Corporation) Sept. 13, 1937, No. 24924. [Class 23] [Also in Group XIII] Air is separated from the liquid in a thermostatic element, which consists of a diaphragm chamber 48, 49 and a tube 47, by centrifuging. The chamber consists of a cup-shaped member 48 containing a flexible diaphragm 49 of similar shape secured by welding at its outer edge. The tube 47 communicates with the space thus enclosed, at the edge of the cup base as shown in Fig. 5 and the main portion of the tube is inclined to the cup. A number of the cups 48 are placed in round seats in the end 28 of an arm 21 which swings on a pin 23 between ears on the shaft 16 rotated by the motor 11. The cups are held firmly in place by plugs 36 secured to the cover 29 of the part 28 ; this cover is hinged on the pin 30 and is held closed by the detent 42 which can be released by rotation of the thumb nut 40. The thermal elements are charged with the liquid and placed in position in the apparatus. The motor is then started and the arms swing out to the position shown in Fig. 2. Any gas in the liquid then moves along the tubes 47 towards the axis of the machine leaving simple liquid in the elements.
Patent GB-1287015-A (GB)
Title: Thermocouples
IPC: H01L35/30
Filed: 1970-05-22
Abstract: 1287015 Thermocouples SIEMENS AG 22 May 1970 [24 May 1969] 25019/70 Addition to 1243250 Heading H1K A thermocouple comprises two limbs 2 joined at their hot ends by a conductive bridge 3a or 3b forming part of a first heat exchanger, while the cold end of each limb 2 carries a metal plate comprising a first layer 4, e.g. of W, nearest to the limb 2 and a second layer 5, e.g. of Ag, carrying a terminal lug 6. A ceramic plate 8a or 8b metallized on both sides is attached to each layer 5, or to both such layers (right-hand side of Fig. 1), and a further metal plate 12a or 12b is attached to the upper side of the ceramic plate 8a or 8b, the plate 12a or 12b being of the same material, e.g. W, as the first layer 4 of the firstmentioned metal plate. A screw-threaded pin 9a or 9b, e.g. of Ag, is attached to the further metal plate 12a or 12b to allow the couple to be secured to a cold heat exchanger 11, e.g. by means of a nut 10 or directly, as 9b. In the former case the pin 9a may be provided with an expansion cavity 13. Ag braids 7 interconnect adjacent couples in the thermoelectric generator illustrated. In modifications, Fig. 2 (not shown), the terminal lugs (17) themselves comprise two mutually insulated halves of a split screwthreaded pin secured to the cold heat exchanger (11). Flanges on the respective halves of the pin provide the second layers (5) of the firstmentioned metal plate. Various alternative forms of hot bridge 3a or 3b are described, these being disclosed also in parent Specification. The hot bridge may be made of (MO 0À46 CO 0À54 ) 0À1 Si 0À9 , while suitable materials for the limbs 2 are ion disilicide, Mn-Si alloy or Ge-Si alloy, the lastmentioned material being respectively doped with B, Ga or In to produce the P-type limb and with P, As or Sb to produce the N-type limb. The ceramic plate 8a or 8b may be of aluminium oxide or beryllium oxide.
Patent GB-333741-A (GB)
Title: Process for the preparation of anhydrous magnesium chloride practically free from oxide
IPC: C01F5/32
Filed: 1929-08-16
Abstract: 333,741. I. G. Farbenindustrie Akt.- Ges. Oct. 4, 1928, [Convention date]. Electrode and resistance furnaces. - A furnace for the production of magnesium chloride comprises a. closed fireproof brickwork shaft a, partly filled with a pervious layer k of coarse - grained carbon such as fragments of carbon electrodes, and is provided with heating electrodes d and c, the lower part of the electrode d being tubular in order to heat the reaction mixture, i Chlorine enters through pipes f, passes through layers k and i and leaves at h. The reaction material is fed at g, and the molten magnesium chloride collecting at the bottom of thelayer k is removed from time to time at l. A series of electrodes and three phase current can be employed.
Patent GB-481539-A (GB)
Title: Improvements in or relating to duplicating stencils
IPC: G03F7/12
Filed: 1936-09-14
Abstract: 481,539. Photographic stencils. SZASZ, G. Sept. 14, 1936, No. 25082. Convention date, Sept. 12, 1935. [Class 98 (ii)] Photographic material for the preparation of stencils comprises a thin porous support, e.g. of long-fibred Japan paper coated with an untanned silver chloride emulsion having a steep gradation and a high content of gelatin and sensitized for long wavelength light. Direct contact prints are taken of the original using light of long wave-length, e.g. by the use of a filter. The emulsion may be sensitized for light of one of more spectral regions, e.g. yellow-green, orange-red or infra-red and the intrinsic sensitivity may be so low that the material can be handled in daylight, copying being effected by the use of sources of light rich in rays to which the material has been sensitized. The emulsion described in Specification 432,495 may be used. After exposure, the material is developed with a tanning developer, e.g. sulphite - free pyrocatechol and washed out with warm water. To facilitate the latter operation, the material may be dyed or a sufficient quantity of sensitizing dye used to colour the emulsion. A reinforcing carrier of thick paper may be secured to the material, e.g. by means of cellulose lacquer, and removed before use.
Patent GB-1235559-A (GB)
Title: Improvements in or relating to plastics zinc dendrite barrier membrane for storage batteries
Inventor: FABER PETER
IPC: H01M50/443
Filed: 1969-05-16
Abstract: 1,235,559. Barrier membranes. RHEINISCHWESTFALISCHES ELEKTRIZITATSWERK A.G. 16 May, 1969 [28 May, 1968], No. 25182/69. Headings C3C and C3P. [Also in Division H1] A membrane for use in separating the cathode and anode compartments in alkaline storage batteries with zinc as negative electrode, consisting of a foil or plate compacted and sintered from hydrophobic plastics material and powdered hydrophilic metal oxide, the oxide being virtually insoluble in alkalis may be prepared by (i) compacting the foil or plate from the metal oxide, introducing the plastics material into the pores of the foil or plate either by injecting molten plastics material under heat and pressure or impregnating the plastics material in dissolved form and then sintering solid plastics and metal oxide to form the membrane or (ii) mixing powdered plastic material and powdered metal oxide and then compacting and sintering. Suitable plastics materials are polyethylene and polystyrene and suitable oxides are MgO, NiO and spinel oxides.
Patent GB-702094-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1951-10-29
Abstract: 702,094. Optical objectives. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, Ltd. Oct. 16, 1952 [Oct. 29, 1951], No. 25194/51. Class 97(1) In a corrected optical objective of the kind comprising two simple divergent lenses located between two simple convergent lenses and embracing between them two convergent inner components of meniscus form and concave towards a diaphragm between them, the outer surfaces of the convergent outer lenses and the inner surfaces of the divergent lenses also being concave towards the diaphragm, the convergent inner components are compound and each include a collective internal contact surface convex towards the diaphragm, the arithmetic mean between the radii of curvature of such contact surfaces being between 0.2 and 2 times the equivalent focal length F, whilst the arithmetic mean between outer elements of the compound inner components exceeds the arithmetic mean between the mean refractive indices of the materials of the divergent inner elements of such components by between 0.03 and 0.13. In the form shown, all the air-exposed surfaces of the components are concave towards the diaphragm. The sum of the equivalent focal lengths of the compound convergent components lies between 1.6F and 2.6F, and the arithmetic mean between the radii of curvature R5 and R10 is between 0.2F and 0.44F. The arithmetic mean of the axial distances between the surfaces R1 and R4, and R11 and R14 may be between 0.08F and 0.17F, while the arithmetic mean of the air spaces S2 and S4 and the arithmetic mean of the air spaces S1 and S5 each lie preferably between 0.01F and 0.1F. Optical data for three examples of the objective shown are given. Specifications 690,402 and 690,403 are referred to.
Patent GB-690608-A (GB)
Title: A securing device working in a slot for holding a line under tension
IPC: B63H9/08
Filed: 1951-10-30
Abstract: 690,608. Friction-grip fastenings. MOODY, R. J. B. Oct. 30, 1951, No. 25362/51. Class 44 A device working in a slot for securing a line under tension, comprises a hook 6 fast with a circular section or similarly shaped body 7 having convexly curved ends 71, 72 such that the body 7, located in the slot with the hook projecting therefrom, may freely slide there along except when a pull is applied on the hook which rocks it on its curved ends to jam in the slot and hold the device in adjusted position. As applied to the securing of the outhaul line of a ships' sail 2, in which a slotted boom 1 extends beyond the end of the sail, and in which an outhaul line 5 is secured between the sail and the hook 6, the latter projects through a constricted portion of the slot on the boom and, with the body portion 7, is slidable along the boom between stops 8 and 9. The curved ends 7<SP>1</SP>, 7<SP>2</SP> of the body 7 are roughened, knurled or provided with transversely extending teeth.
Patent GB-866792-A (GB)
Title: Thermally-actuated fluid control valves for the cooling systems of internal combustion engines
IPC: G05D23/12
Filed: 1957-08-12
Abstract: 866,792. Valves. USINES CHAUSSON S. A., DES. Aug. 12, 1957 [Aug. 22, 1956], No. 25370/57. Class 135. A thermally-actuated valve to control the flow to coolant between the cylinder jacket and the radiator of an I.C. engine comprises a valve housing 1 having an inlet 2 from the cylinder jacket, an outlet 3 to the radiator and an outlet 4 to the heat exchanger of an air conditioning system, a movable seat member 5 and a closure member 8 co-operating with the seat and actuated by a thermostat bellows 10. The movable seat member 5 has an extension 6 which acts as a closure member for the outlet 4 when the seat is in the position shown in Fig. 1. Under " summer " conditions the movable seat is positioned as shown, isolating the heat exchanger of the airconditioning system. For " winter " conditions the lever 7 is moved to the position 7a thereby rotating the seat and the closure member to the position 5a. This action opens the outlet 4 to coolant fluid and also displaces upwards the pin 13 causing an extension of the bellows 10. to the position shown at 10a. In consequence the temperature required to expand the bellows to open the valve is raised.
Patent GB-645547-A (GB)
Title: Improvements in or relating to chains
IPC: B65G17/20
Filed: 1948-09-29
Abstract: 645,547. Chains. KING, D. M. Sept. 29, 1948, No. 25380. [Class 24] The links 10 of a chain are of strip metal bent into U-shape and have cut-away portions 11 at their bent ends, the limbs of every other link having keyhole slots 12 which co-operate with pairs of grooves 14 formed in connecting pins 13. A pair of links are connected by assembling as shown in full lines in the Figure, and the pin 13 is inserted into the larger portion of the slots 12. The links 10 are then manipulated so that the grooves 14 engage the narrow portions of the slots 12 whereby the pin 13 is retained and the links are then aligned. Concertina movement between the links which might release the pin 13, is prevented by engagement of the ends of the limbs of one link with the ends of the cut-away portions 11 of the other. The chain is formed by connecting such pairs of links permanently together by pins 15 welded in position, or alternatively, all links may be connected by pins 13. Fig. 1 (not shown) illustrates the application of the chain to a conveyer.
Patent GB-188859-A (GB)
Title: An improved rat trap
IPC: A01M23/18
Filed: 1921-09-26
Abstract: 188,859. Purchon, J. Sept. 26, 1921. Animals, catching and destroying.-An animal trap consists of a box the top of which is covered by wire netting 2 and a door 1 for setting the trap. One end of the box is closed by a spring- actuated door 4. The mechanism for releasing the door consists of an upright partition 7 having hinged thereto a rod 6 which rests on a transverse bar 5, and the free end of which engages the lower edge of the door 4. Preferably a strip of metal is fixed to the said lower edge and a hole punched therein is engaged by the end of the rod 6. The animal in getting at the bait on the floor round the part 7 disturbs it and causes the rod 6 to release the door.
Patent GB-362427-A (GB)
Title: Improvements in and relating to the heating of coke ovens
IPC: C10B21/22
Filed: 1930-08-27
Abstract: 362,427. Coke ovens. VERPEAUX, P. E., 100, Avenue de la Toison d'Or, and UNION CHIMIQUE BELGE, SOC. ANON., 61, Avenue Louise, both in Brussels, Belgium. Aug. 27, 1930, No. 25537. [Classes 51 (i) and 51 (ii).] Gaseous fuel furnaces.- A uniform heating is maintained along the length of coke oven flues by varying the length of the heating- flame, either by maintaining a constant gas supply and continuously varying the rates of air supply at two or more levels in the flue, or by maintaining a constant air supply and continuously varying the calorific value of the gas delivered at different levels. In both cases the variations in the rates of supply are so made that the total heat supply between two successive reversals of the regenerative system is constant. When a variable quantity of air is supplied at two levels the supplies may be controlled by two rotary valves so interconnected that as one is opening the other is closing. When the calorific value of the gas is varied the supplies for each of the different levels f, g, h is drawn from two sources b<1> b<2>, c<1> c<2>, and d<1> d<2>, and the relative quantities of the gases in the mixtures are varied continuously to give different flame lengths. The quantity of any particular gas used may be kept substantially constant by so arranging the supplies that some heating-walls or groups of flues are receiving the maximum supply while others are receiving the minimum.
Patent GB-169970-A (GB)
Title: Device for the automatic operation of an electric circuit breaker controlled by the pressure of a movable medium
IPC: G05D16/20
Filed: 1921-09-27
Abstract: 169,970. Maschinenfabrik Oerlikon.. Oct. 9, 1920, [Convention date]. Pneumatic actuation.-Electric motors driving aircompressors a r e stopped and started automatically at determinate pressure limits, by means of a switch 3 operated by a piston 10 working against a spring 4 in an air-cylinder communicating with a valve-chamber 8 provided with two valves 6, 9 of different sizes, which alternately put the cylinder into communication with the compressor 1 and with an atmospheric exhaust. The valves respond to movements of a piston 5 sustained by a spring 7 which is adjusted to yield at the upper limit of pressure and to return at the lower limit.
Patent GB-164646-A (GB)
Title: A new or improved combined tap or cock and filter
IPC: F16K5/02
Filed: 1920-09-04
Abstract: 164,646. Beaton, R. K. Sept. 4, 1920. Filters and strainers, applications of. - The plug b of a plug tap is made hollow and is fitted with a filtering- medium c consisting of layer of wire gauze of very fine mesh, or of linen, or a block of carbon or porous earthenware may be used. The filter may be attached to the screwed plug d which closes the end of the hollow plug.
Patent GB-279808-A (GB)
Title: Improvements in or relating to radio receiving devices
IPC: H03D7/18
Filed: 1927-09-29
Abstract: 279,808. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Roberts, W. van B.). Oct. 26, 1926, [Convention date]. Thermionic heterodyne receivers.-Undesired " image " signals in supersonic reception are eliminated by making the frequency difference between a given local oscillation and the desired signals sufficiently larger to throw the range of " image " frequencies well outside the normal range of broadcast frequencies. Preferably the beat frequency should be not less than, nor more than, twice the frequency of any desired signal. In order to increase the number of signal-frequencies coming within the tuning-range of the set, a second fixed-frequency heterodyne is introduced more closely related to the first beat note than the latter is to the desired signal. The system enables low-pass filter couplings to be used in place of an undesirably large number of selective circuits tuned to the desired signals. As shown in Fig 3, signals from a. loop aerial 11 are fed through a low-pass filter 12 to a detector valve 13, where they are combined with oscillations from a circuit 14 to form the primary beat note. After amplification at 15, a second heterodyne is introduced at 17 on the grid of the detector valve 16. The output is passed through an intermediate-frequency band filter 18, is amplified at 19, rectified at 20, and finally amplified in low-frequency form by the valve 21.