baber/WOPTO huggingface dataset:
Patent GB-1432191-A (GB)
Title: Magnetic disc recorder and magnetic disc cassette
IPC: G11B23/033
Filed: 1973-06-27
Abstract: 1432191 Magnetic disc recording and playback ARVIN INDUSTRIES Inc 27 June 1973 [27 June 1972 (4) 10 Nov 1972] 30660/73 Heading G5R A flexible magnetic record disc in a cassette 40 is attached to a hub 135, 140 which is driven by engagement with a rotating drive hub 25, 28, and a radially-movable transducer 73 engages the disc through an elongated opening in one face of the cassette 40. As shown, a cassette 40 of the type described in Specification 1,432,193 is loaded into a movable carriage 30 as described in Specification 1,432,192. The two hubs have interlocking teeth 28, 140.
Patent GB-159352-A (GB)
Title: Improvements in casement fasteners and in the manufacture of the same
IPC: E05C3/04
Filed: 1919-12-08
Abstract: 159,352. Parkes, S. R. Dec. 8, 1919. Turn - button fasteners.-In a casement-fastener of the " cockspur " type in which the parts are made from sheet metal, the combined head and handle is formed from a suitable blank, the handle being made tubulous and the head stiffened by fitting one or more metal blanks therein. In a modification, the handle A may be dished, as seen in section in Fig. 5, and the head B stiffened by forming a groove or grooves in its surface, the centre portion of the attachment plate D, also formed from sheet metal, being raised at d<3> to project up into the head, the metal blanks, described above, being dispensed with. The hook or catch is formed by partially cutting-out the centre portion of a metal blank, this portion being bent to form the nose, or it may be formed as shown in Fig. 8, from the blank E, shown in Fig. 7, by turning the ends e<3>, e<4>, through 90‹ in opposite directions by a suitable tool, leaving the nose e<2> projecting at right-angles.
Patent GB-1358875-A (GB)
Title: Bag opening and supplying device
IPC: B65B67/12
Filed: 1971-06-30
Abstract: 1358875 Bag supplying devices FUJI PHOTO FILM CO Ltd 30 June 1971 [30 June 1970] 30738/71 Heading B8C Bags are removed singly from a hopper 1 by vertically reciprocating suction pipes 2 from which the bag is removed by rotating suction pipes 4 for transfer to bag receiving means 30 with bag opening jaws, a spring-loaded member 7 being mounted between pipes 4 to force the bag against the receiving means. The motion of pipes 2 is controlled by follower 51 bearing on a cam 6 rotating with pipes 4.
Patent GB-1031436-A (GB)
Title: Improvements in and relating to methods of soft-soldering
IPC: C25D5/50
Filed: 1963-08-02
Abstract: 1,031,436. Soldering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 2, 1963 [Aug. 8, 1962], No. 30759/63. Heading B3R. [Also in Division H1] In soft soldering to a body surface of at least 85% nickel, a gold layer of thickness 0À01- 0À2 Á is deposited on the surface and the body is then heated to 300-150 C. prior to the application of solder metal. An iron base of a semiconductor envelope having supply wires passing through glass inserts is electroplated with nickel to thickness of 5Á, then electroless plated with gold to thickness of 0À1Á and heated to 350 C. to diffuse the gold into the nickel layer. After cooling a foil of solder 70% Sn, 30% Pb, is disposed between the coated surface and a germanium wafer soldered to a nickel strip by an indium-gallium alloy and the assembly is heated in a stream of nitrogen-5% hydrogen at 300 C. finally being cooled in an air stream. In another embodiment the copper bottom of an envelope having a circular groove is provided with a 1Á electroplated nickel layer, then a 0À1Á electroless plated gold layer and the part is heated at 350 C. A cylindrical hood is similarly nickel and gold plated and heated. A foil of lead-tin alloy is placed on the bottom part and the semi-conductor element arranged thereon and the hood is arranged in the groove and lead-tin solder pellets are placed in the groove, the assembly being heated to 350 C. to simultaneously solder the element and the hood to the bottom part. In yet another embodiment a copper bottom part of an envelope is similarly coated with 1Á nickel, a 0À1Á electroless plated layer of gold is provided and the assembly heated at 350 C. A germanium wafer to which indium pellets are alloyed is placed on the gold surface and the assembly is heated at 160 C. in nitrogen-5% hydrogen so that indium flows to solder the element to the coated surface. The gold layer may be applied by eleetrodeposition.
Patent GB-1343250-A (GB)
Title: Coated luminescent silicates
IPC: H01J61/46
Filed: 1972-06-30
Abstract: 1343250 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 June 1972 [3 July 1971] 30776/72 Heading C4S A luminescent material consists of particles of a luminescent silicate which have a coating of from 0À01 to 5% (e.g. 0À25%) by wt. of an alkaline earth metal hydrogen phosphate and/or the phosphate obtained by heading the hydrogen phosphate and may be incorporated in a low pressure mercury vapour discharge lamp. The method of coating may comprise precipitating the hydrogen phosphate on to the particles in an aqueous medium having a pH of 5 to 9, e.g. 6 to 8, which has been prepared by mixing an aqueous 0À001 to 0À1 molar (preferably 0À005 to 0À05) solution of ammonium and/or alkali metal phosphate with an aqueous 0À001 to 0À1 molar solution of an alkaline earth metal salt. Application to a lamp envelope may be by suspension in an organic binder (e.g. nitrocellulose butylacetate), the binder subsequently removed by burning, e.g. 400‹ to 600‹ C. The burning may convert partly or entirely into a different phosphate, especially an alkaline earth metal pyrophosphate. A low pressure lamp preferably comprises a Mn activated silicate e.g. Mn:Zn orthosilicate (willemite), the coating reducing decline of luminous flux in one and increasing initial flux and improving flow. The phosphor may also be barium disilicate : bivalent Eu in which Ba may be partly replaced by Sr: Ba x Sr y Eu p Si 2 O 5  wherein x+y+p= 1 and 0À40 # y#0 and 0À10#p#0À005. In an example, 100 to 2000 grms. of silicate / per litre are added to an aqueous 0À001-0À1 M ammonium and/or alkali metal phosphate solution whereafter between 1 and 5 mole of an alkaline earth metal salt/ mole of phosphate is added by means of an aqueous 0À001-0À1 M alkaline earth metal salt solution, while the pH is 5 to 9. The particles may be mixed firstly with the phosphate solution and the alkaline earth metal salt solution subsequently added, an excess of the latter preferably being used. The pH of the solution may be controlled by adding acid, e.g. hydrochloric on a base, e.g. ammonia. Preferably the phosphate solution is diammonium hydrogen phosphate, strontium halide solution may be the alkaline earth salt solution. A further specific example is described. Comparative measurements are tabulated for coatings of specified proportions, e.g. for SrHPO 4 , CaHPO 4 , BaHPO 4 . Reference is made to Specifications 1,222,859 and 1,191,974.
Patent GB-757925-A (GB)
Title: Unidirectional wave guide attenuator
Inventor: THOMPSON GEORGE HORACE BROOKE
IPC: H01P1/375
Filed: 1953-11-06
Abstract: 757,925. Waveguide attenuators. STANDARD TELEPHONES & CABLES, Ltd. Oct. 29, 1954 [Nov. 6, 1953], No. 30795/53. Class 40 (8). A unidirectional waveguide attenuator comprises a circular waveguide containing an axially disposed cylinder B of a ferromagnetic material, e.g. nickel-zinc ferrite, capable of gyromagnetic resonance at the frequency of the wave energy under the influence of an axial magnetic field of the correct magnitude. The circular waveguide is connected at either end to rectangular waveguides 3, 4, the linearly-polarized energy from which is converted to left-handed circularly-polarized energy by either of two #/4 dielectric plates A, C which lie in mutuallyperpendicular planes at 45 degrees to the principal longitudinal planes of the rectangular guides. The ferrite body B is only excited into resonance when the sense of rotation of the circularly-polarized wave is the same as the direction of the current (real or hypothetical) producing the axial magnetic field. Since the effect is independent of the direction of propagation and since energy propagated in either direction has a left-handed sense only energy propagated from right to left will be absorbed by the gyromagnetic resonance effect. Energy propagated from left to right is substantially unattenuated and is converted to a planepolarized mode compatible with the rectangular guide and by the #/4 plate C. In a modification the #/4 plates are arranged in the same plane with the cross-section of one of the terminal rectangular guides twisted through 90 degrees relative to the cross-section of the other. In a further modification one of the #/4 plates is omitted. This apparatus behaves in the same manner as the one shown in the Figure, except that a 3 db. loss is incurred for waves travelling in the " pass " direction. A permanent magnet or a solenoid may be used to produce the static magnetic field.
Patent GB-1309162-A (GB)
Title: Fluid flow-regulating valves
IPC: F15B11/20
Filed: 1970-06-25
Abstract: 1309162 Valves ROBERT BOSCH GmbH 25 June 1970 [28 June 1969] 30810/70 Heading F2V [Also in Division G3] A valve has a spool 13 biased to the right by a spring 34 and supplying from an inlet 25 a constant flow to an outlet 31 while conducting the excess to an outlet 33. Interruption of the flow from the outlet 31 causes pressure in chamber 39 to rise and move the spool to the left so that the flow is switched from the outlet 31 to outlet 33. The outlet 31 communicates with a chamber 35 via a restriction 37 and the outlet pressure is releaved by spring-loaded valve 41. The pressure at the outlet 33 is determined by the spring-loaded valve 43 which can be set at a pressure equal to or greater than that of valve 41. Restriction 37 and valve 41 may be combined in a spool valve, one land of which acts as a relief valve and another of which acts as a variable throttle.
Patent GB-517258-A (GB)
Title: Improvements in the manufacture of paper
IPC: D21H19/38
Filed: 1938-10-25
Abstract: 517,258. Aluminium phosphate pigments. BURGESS, A. F. (Paper Patents Co.). Oct. 25, 1938, No. 30827. [Class 1 (iii)] [Also 'in Group VIII] In the preparation of acidic or basic aluminium phosphate, double phosphate or alkali or alkaline earth-aluminium phosphate pigments for use in paper-manufacture, 1.-600 lbs. each of sodium and aluminium hydrates are boiled 20-30 mins. in 290 gallons of water until the solution is clear, diluted to 720 gallons with water and added slowly to 720 gallons of water to which separately, but at the same time, is added diluted phosphoric acid, alumium sulphate is then added to give pH=5 and the precipated filtered. II.-A solution of phosphoric acid in water is mixed with 720 lbs. of iron-free aluminium sulphate in 720 lbs. of water, and an aqueous suspension of calcium hydroxide (100 grams per litre) until pH rises to 5-5.2, and the calcium aluminium phosphate complex filtered. Phosphoric acid may be partially or wholly replaced by alkali phosphates, e.g., disodium phosphate, and oxides or carbonate may replace hydroxide of alkali or alkaline earth metals.
Patent GB-690962-A (GB)
Title: Improvements in means for converting a continuous rotary movement of a driving member into an oscillatory movement of a driven member
Inventor: HEINRICH AUGUST HERMAN
IPC: B24B15/08
Filed: 1950-12-18
Abstract: 690,962. Obtaining oscillatory-rotary motion. METAL SEAL & PRODUCTS, Inc. Dec. 18, 1950, No. 30835/50. Class 80 (i). A mechanism for obtaining rotary motion with periodic reversals of rotation, see Fig. 9, from a continuously-rotating shaft is mounted in a casing 10, 11, Fig; 2, and comprises a sun gear 22 keyed on a reduced portion of the input shaft 20, and two planet gears 32 carried by shafts 31 mounted in a rotatable crosshead 30. The planet shafts 31 each carry a crank disc 40 and a pinion. 35 engaging a fixed annular gear 37. Each crank disc has a crank pin 41, Fig. 5, connected by a link 42 to a pin 43 on a crosshead 44 secured to the output shaft 50. The crank arm 43-50 is longer than the arm 41- 31, and the tooth ratio between the gears 35, 37 is such that the reversals do not occur at the same point of rotation of the driven shaft for each revolution thereof.
Patent GB-918391-A (GB)
Title: Improvements in or relating to tobacco-manipulating machines
IPC: A24B3/08
Filed: 1958-09-26
Abstract: 918,391. Cigarette-making machines. MOLINS, D. W., and MOLINS MACHINE CO. Ltd. Sept. 25, 1959 [Sept. 26, 1958], No. 30838/58. Class 130. Tobacco impelled from a pair of side-by-side hoppers 3, Fig. 2, is intercepted by a pair of obliquely disposed baffles 11, 12, which direct the tobacco downwardly on to a conveyer 10. Each hopper is provided with a separate feed mechanism comprising carding and picker rollers 6, 7, and the tobacco is impelled sideways across the conveyer 10 and against the baffles 11, 12, by picker wheels 9. Different tobaccos may be fed by the two hoppers at different rates to produce a desired blend in the resultant stream formed on the conveyer 10 and fed to a suction type tobacco filler forming apparatus such as that described in Specification 895,733.
Patent GB-974870-A (GB)
Title: Improvements in or relating to conveyors for bricks and the like
IPC: B65G17/00
Filed: 1963-08-06
Abstract: 974,870. Endless conveyers. GEORG WILLY A.G. Aug. 6, 1963 [Aug. 13, 1962], No. 31024/63. Heading B8A. A conveyer for bricks 14 comprises two parallel endless roller chains 4 passing around commonly driven guide wheels 12 and supported between wheels by a vertically spaced pair of rails 2 bolted to supports 9 welded to a central longitudinal I member 1. Each chain 4 comprises guide members 5 between which the rollers 3 are mounted. The guide members 5 are bent at their upper ends 6 to form a support for the bricks and at their lower ends 7 to embrace the rails 2 and guide the chain. Shielding sheets 10, 13 are provided horizontally between the two chains and vertically between the pairs of rails.
Patent GB-1515426-A (GB)
Title: Data recording apparatus for recording data signals on a magnetic record medium
IPC: G11B5/09
Filed: 1976-07-26
Abstract: 1515426 Data recording NCR CORP and CONTROL DATA CORP 26 July 1976 [28 July 1975] 31044/76 Heading G4C Serial data on line 102, e.g. NRZI encoded, is selectively delayed in a tapped shift register 124 to compensate for peak shift distortion when recording on a magnetic medium, the selected delay being determined by the data bit pattern in the neighbourhood of the bit being recorded. The input data is clocked into a shift register 104 at the data bit rate, the bit to be recorded being taken from stage 116 of the register and fed to the delay shift register 124 which is clocked at a multiple, e.g. 9X of the data bit rate. The instantaneous pattern in inout register 104 is used to address a ROM 146 acting as a look-up table of peak shift values for each allowed data bit pattern (in group code recording no more than two consecutive zeros or five consecutive ones are allowed). The output of ROM 146 controls a multiplexer 144 to advance or retard each data bit according to the surrounding bit pattern by selecting for output a stage preceding or following the normal stage, e.g. 136.
Patent GB-941128-A (GB)
Title: Improvements in or relating to the manufacture of plastic film
Inventor: BIGLAND BERNARD KIETH
IPC: B29C48/03
Filed: 1961-08-30
Abstract: 941,128. Tubular films. GENERAL ENGINEERING CO. (RADCLIFFE) Ltd. Aug. 30, 1962 [Aug. 30, 1961], No. 31151/61. Heading B5B. Apparatus for forming an extruded tube of a plastic material, e.g. polyethylene, polystyrene or polyvinyl chloride, comprises means for extruding the material as a tubular film having walls of greater thickness than the required finished wall thickness, an expandable former, means for passing said tubular film over said former, and means for providing an air cushion on the outer surface of said former. As shown, a melt is extruded from press 10 at annular nozzle 13 to form a tubular film 24, of greater thickness than the required finished thickness, which passes between the toroidal former 21 and the cooling ring 23 to nip rollers 25. Former 21 is inflatable with air or liquid via pipe 22, or mechanically expansible, but on starting is in the deflated or contracted state. Compressed air is then admitted via 18, 14, 17, and passes between tube 24 and former 21 into the region sealed by nip rollers 25, and passes out via tube 19. Air is now admitted to pipe 22, causing inflation of 21, increasing the diameter of tube 24, with consequent thinning of its walls. Tube 24 now flows over former 21, floating on the air cushion formed by the high velocity air stream flowing between 21 and 24. Air is now supplied to the cooling ring 23, which may be supplied with air at high velocity, since distortion of the tube 24 is prevented by the air cushion. Extrusion may be effected downwardly or horizontally if desired.
Patent GB-226840-A (GB)
Title: Electric hand lamps
IPC: F21L4/00
Filed: 1924-12-29
Abstract: 226,840. National Carbon Co., Inc., (Assignees of Osean, C.). Dec. 26, 1923, [Convention date]. Lantern, doors.-In electric hand lamps arranged to project the light laterally, the casing is formed with an in-set wall W so that when the bulb L and reflector R are mounted upon this wall by screwing in the lens mount the lens G projects only slightly from the side of the lamp.
Patent GB-776522-A (GB)
Title: Improvements in beverage dispenser
IPC: B67D3/00
Filed: 1955-11-01
Abstract: 776,522. Dispensing liquids. JACOBS, W. H. Nov. 1, 1955, No. 31232/55. Class 116. A pump 37, Fig. 3, for stirring a beverage within a container 10 is driven by a magnetic device 19 mounted outside the container. In the construction illustrated the pump also serves to dispense the beverage and comprises a plastic impeller formed with vanes 39, Fig. 7, and carrying a permanent magnet 40 which co-operates with a permanent magnet 19 carried by the shaft 20 of an electric motor 21, Fig. 3. The impeller 37 is carried by a shaft 35 mounted within a cap 27 formed with a handle 28 and secured by wedging lugs 31, which engage fixed pins 30, to close a well 22 leading from the container 10 to the pump chamber. Liquid is withdrawn from the chamber 10 through passages 43, 44 and delivered through a conduit 45 to a valve stem 50, 51 sliding within a sleeve 25 on the container 10. In the position illustrated the liquid passes through the upper portion 51 of the valve stem to a stand pipe 53 which has an upper aperture 59, Fig. 3, delivering liquid to flow over the surface of the top 23 of the container 10, and a lower aperture 58 which directs liquid tangentially of a casing 14 containing refrigerating coils 13. The valve stem 50, 51 can be raised by a handle 62 to bring an aperture 68 leading to a delivery spout 50 into register with the conduit 45: in this position of the valve stem some liquid is still delivered to the stand pipe 53. The container 10 is preferably of transparent plastic and has a double walled top 23, 24. It is mounted on a pedestal 11 which contains refrigerating apparatus delivering liquid to the coils 13. The housing 14 of the coils 13 projects through a gasket 17 sealing an aperture in the base of the container 10. A sterilizing lamp 68 shines through a window 69 on the delivery spout 50.
Patent GB-1370545-A (GB)
Title: Method of washing vessels and apparatus for carrying out this  method
IPC: B08B9/28
Filed: 1972-07-05
Abstract: 1370545 Washing ampoule; SPETSIALNOE PROEKTNO - KONSTRUKTORSKOE BJURO MEDITSINSKOI PROMYSHLENNOSTI 5 July 1972 31359/72 Heading B8T Ampoules 17 inverted in a holder 18 are washed in a closed chamber 1 which is first filled with a vapour, e.g. steam, through a valve 5, the vapour entering the ampoules the necks of which are then immersed in washing liquid supplied through valve 8 or 9. Steam or other vapour supplied through valve 5 raises the pressure in the chamber 1 to a point at which the vapour in the ampoules condenses, and they are filled with washing liquid. The washing liquid is then removed through a valve 12 and cooling liquid is admitted through a valve 22 and spray nozzles 20, thereby causing a reduced pressure in the chamber so that vapour in the chamber condenses, and liquid in the ampoules evaporates. The vapour pressure may open a valve 12 to expel air from the chamber 1. Where washing liquid is present in the chamber before vapour is admitted, the valve 12 is closed by a device 14 and air is expelled through a valve 6. The lid 2 of the chamber 1 is movable vertically by means of hydraulic pistons 23 and closes against an annular gasket 3. The washing liquid may be heated before reaching the chamber 1. A sterilization stage may follow the washing stage. In modifications, the cooling and washing liquids are separated in the chamber 1 by a wall (41), Fig. 2 (not shown), and an auxiliary tank (67), Fig. 3 (not shown), with internal ribs (70) for increasing the heat exchange surface of the tank is provided for the cooling liquid. A device producing ultrasonic oscillations may be fitted in the chamber 1.
Patent GB-1065576-A (GB)
Title: Digital computers
IPC: G06F3/06
Filed: 1964-08-04
Abstract: 1,065,576. Digital electric calculating apparatus. P. LUCAS and J. DUQUESNE. Aug. 4, 1964 [July 31. 1963]. No. 31458/64. Heading G4A. A digital computer with a magnetic drum store, for use e.g. in a telephone system, has a buffer for data transfer to and from the drum, the buffer having as many word storage locations as there are sectors in a drum track, and associated with each location a register in which is recorded the drum track involved in that word transfer, so that a number of data transfer instructions can be recorded there for systematic scanning as the drum rotates. The locations are scanned cyclically by arranging that the sector addresses corresponding to successively scanned locations are spaced apart by a number prime to the number of sectors per track. When a scanned location calls for a data transfer the track required is selected and the normal compute operation interrupted as the sector is reached; this arrangement minimises the delay in data transfer when a number of sector addresses have to be found, while allowing the computer to continue its normal operation until data transfer can actually take place. Since only one location is provided for the same sector on a plurality of tracks, a non- availability signal inhibits transfer if the location corresponding to a called sector is already loaded.
Patent GB-520461-A (GB)
Title: Improvements in electric lamps having sealed envelopes
IPC: H01J5/50
Filed: 1938-10-31
Abstract: 520,461. Electric lamps with closed bulbs. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand Ges. Fur Elektrische Gluhlampen). Oct. 31, 1938, No. 31459. [Class 39 (ii)] [Also in Group XL] In order to provide protection for the sealing - off pip of an electric lamp, the moulded glass body 2 closing the tubular envelope 1 and carrying pins 6, 7 connected, in t h e arrangement shown. with a thermionic electrode has an inwardly recessed portion 8 from which the sealing-off pip 10 projects outwards to a point more or less flush with the exterior surface. The recess may be closed by a cap 11 cemented in place. Specifications 17622/98, [Class 39], 381,837, and 421,469, [Group XL], are referred to.