baber/WOPTO huggingface dataset:
Patent GB-261328-A (GB)
Title: A device for locking at least two nuts
IPC: E01B11/38
Filed: 1926-10-28
Abstract: 261,328. Brandt, E. Sept. 8, 1926, [Convention date]. Locking nuts.-A plate a for locking two or more nuts c<1>, c<2> is held between the nuts and the work and has cut from it a tongue e<1>, e <2> for each nut, so twisted that its free end contacts with the nut and acts as a pawl.
Patent GB-775841-A (GB)
Title: Joint-forming element for constructional metalwork
IPC: E04B2/78
Filed: 1954-01-02
Abstract: 775,841. Constructional metalwork; walls; posts. AYRSHIRE DOCKYARD CO., Ltd., and AITKEN, G. G. April 4, 1955 [Jan. 2, 1954], No. 27050/55. Classes 20(1), 20(2) and 20(4) A hollow elongated joint forming element is of triangular cross section one side of which is split substantially centrally thereof longitudinally of the element, the edge portions of the said side resulting from the split being each reflexly bent outwardly to form a channelled recess 3. In Fig. 2, four elements 1 are connected by angle bars 5 engaged in the recesses 3 to form a corner junction for a structure (not shown), wherein plates, partitions or bulkheads are disposed each with a marginal edge portion between sections of the side 2 of one of the members 1. In Fig. 3 four elements 1 are connected by angle sections 6 engaged in the recesses 3 to form a hollow pillar in which an electric cable or a pipe may be arranged. In Fig. 4, two elements 1 are connected by a channel bar 9 engaging one recess 3 of each element, and spaced plates 7, 8 are engaged in the other recess 3 of each element.
Patent GB-170298-A (GB)
Title: Method for generating and strengthening oscillations of any frequency, especially for wireless telegraphy
IPC: H03B5/10
Filed: 1920-07-12
Abstract: 170,298. Huth Ges., Dr. E. F. May 17, 1919, [Convention date]. Addition to 149,192. Void [Published under Sect. 91 of the Act]. Thermionic oscillation generators; thermionic amplifiers.-The oscillatory circuit of a valve for generating or amplifying oscillations is connected between the grid and the cathode, and a choking coil or high resistance is connected between the anode and the grid. As shown in Fig. 3, the oscillatory circuit 5, 6 is connected on the one hand to the cathode 1 through the main battery 8, and on the other hand to the grid 2 through a condenser 7. An iron-cored or other choking-coil 4 is inserted between the anode 3 and the oscillatory circuit. The normal grid potential may be determined by a connection to a potentiometer 9. If the main battery is placed between the anode 3 and the choking-coil 4, the condenser 7 may be omitted. The grid of a second valve may be connected to the anode 3 through a condenser or series of condensers.
Patent GB-356487-A (GB)
Title: Improvements in regulable transformers
IPC: H01F29/12
Filed: 1930-09-11
Abstract: 356,487. Transformers. STROHSCHNEIDER, R., 11A, K³hnertsgasse, Nuremberg, Germany. Sept. 11, 1930, No. 27180. [Class 38 (ii).] A transformer providing a variable low-voltage output comprises a primary winding P on a fixed E-shaped core K carrying a secondary coil s1 connected in series with a pair of similarly wound coils S2, S3 located in grooves on a movable core-piece A completing the two magnetic circuits. In the position shown, the voltages of the coils S2, S3 are equal and opposite causing the voltage at the secondary terminals to be equal to that of the coil S1. Increase or decrease of the output voltage is caused by moving the core-piece A and coils S2, S3 to the right or left respectively so as to add or subtract the resultant voltage of the coils S2, S3 to or from the voltage of the coil S1.
Patent GB-720243-A (GB)
Title: Flexible repeater for submarine electric cables
IPC: H02G15/14
Filed: 1952-10-29
Abstract: 720,243. Cable joints. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 29, 1952 [Jan. 21, 1952], No. 27204/52. Class 38 (1). A flexible submarine cable repeater comprises a number of containers such as 10, 11 for the electric elements, each having a fluid-tight insulating envelope 3 moulded thereon. Adjacent containers are interconnected by flexible cables, the sheaths 4 of which are sealed to the envelopes 3, the flexible cables from the end containers being sealed to the submarine cable 12 at 13, 14. A flexible metallic.tube 8, which is not fluid-tight, encloses the chain of containers and supports the armouring 9 of the submarine cable. Specification 563,158 is referred to.
Patent GB-1396484-A (GB)
Title: Spring clip
IPC: H01R11/22
Filed: 1973-06-07
Abstract: 1396484 Spring clips T R W INC 7 June 1973 [7 June 1972] 27251/73 Heading E2B [Also in Division H2] A spring clip 2 for insertion in an aperture in a workpiece comprises a head portion 4 having means which, in use, overlie the workpiece and a shank portion 10 insertable through the aperture and having a pair of oppositely disposed lugs 22 flaring outwardly from the main body of the shank portion and extending generally towards the head portion the lugs 22 being resiliently compressable to permit passage of the shank through the aperture. The shank portion 10 includes two parallel spring lugs 14, the lugs 22 being cut from the material of the legs. The lugs 22 taper outwardly and are of U-shaped crosssection to enhance their rigidity. The free ends of the lugs 22, in use, cooperate with the portion of the workpiece surrounding aperture and are tapered so that the clip can be used with different thickness of workpieces, (Figs 6, 8 not shown). The head portion 4 is provided with a pressed out socket 6 for the reception of a terminal trapping screw (Figs 4, 8 not shown).
Patent GB-815829-A (GB)
Title: Fertilizers coated with polymeric materials
Inventor: HANSON THOMAS KENNETH
IPC: C05G3/00
Filed: 1956-09-06
Abstract: Fertilizer materials in granular form are coated with an inorganic material such as calcium sulphate and then with a substantially water-insoluble polymeric material to render them non-caking and to retard the availability of the nutrient substances to the soil.  The polymeric materials mentioned are polymers and copolymers of stryene, vinyl chloride, vinylidene chloride, acrylonitrile, ethylene, fluorinated alkenes or a protein based polymeric product such as that formed between gelatine and formaldehyde.  After coating with the inorganic material the granular fertilizers may be sprayed with a suitable solution of the plastic, or they may be sprayed with an intermediary of the plastic and the polymerisation, at further cross-linking or other modification may then take place.  The example illustrates coating granules initially with ammonium sulphatenitrate with gypsum and then with gelatine followed by formaldehyde, thus forming the polymeric material in situ on the granules.  Fertilizer components disclosed include phosphates, superphosphates, potassium and ammonium salts e.g. ammonium sulphate, nitrate or phosphate potassium chloride or urea and salts of urea.
Patent GB-722175-A (GB)
Title: Improvements in or relating to the production of magnetisable material
IPC: G11B5/706
Filed: 1949-10-24
Abstract: <PICT:0722175/III/1> Black ferroferric oxide having a coercive force of about 250-325 oersteds and a remanence of about 3,500 gaus or higher and suitable for making a magnetic sound recorder-reproducer tape, is prepared by heating finely divided yellow, hydrated ferric oxide to about 400-450 DEG C. for about 60-120 minutes and, whilst heating, applying or reducing gas such as hydrogen or carbon monoxide under pressure, e.g. at 25-35 lbs./sq. in. above atmospheric.  The ferric oxide used may be obtained by precipitation or by heating ferrous sulphate heptahydrate at 600-700 DEG  C.  A suitable reduction furnace comprises a pot 20 mounted on rollers 11 and heated electrically by coil 12.  The pot may be arranged to rotate.  A valved pipe 35 extends through the non-heated portion of the pot, and a baffle wall 21.  The furnace is first heated to 600-700 DEG C., and the pot with ferric oxide therein, bearing, say, a volume ratio of 1:50 with the void space, is then placed in position. Cover 30 is bolted on, and moisture escapes through valved pipe 25.  Thereupon, the valve is closed and hydrogen under pressure admitted through pipe 35 for the prescribed period.  Evolved steam condenses on the water-cooled end cover 30.  Alternatively, water-absorbing material, such as silica gel or alumina, may be put into the pot.  The pot when removed may be allowed to cool, or quenched in water.  If the reduction process is carried too far, whereby a spontaneously-ignitable product is formed, it may be reversed by replacing the hydrogen by steam.
Patent GB-683172-A (GB)
Title: Improvements in or relating to dielectric heating
IPC: H05B6/78
Filed: 1950-11-08
Abstract: 683,172. Dielectric heating of cereals. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 8, 1950 [Nov. 26, 1949], No. 27292/50. Class 39(iii) [Also in Group I] A method of dielectrically heating a cereal comprises loading the cereal on to a conveyer 4, compacting the cereal on the conveyer) the compacted cereal being thereafter moved by the conveyer between upper and lower heating electrodes 34, 32, with an air space 52 between the cereal and the upper electrode. As shown the cereal fed on to the conveyer at a loading station L passes to be compacted by the compactor 18 comprising a compactor plate 24 adjustably supported parallel to the conveyer by rods 28 from a stationary frame 26 and a brace plate 20 on which the conveyer rides. Thereafter the cereal passes between the elctrodes 32, 34 arranged parallel to the conveyer which rides on the lower one preferably a solid metal plate and which is electrically connected to earth at 38. The upper electrode 34 preferably also a metal plate is carried on a stationary frame 40 by insulating rods 42 and connected by an insulated conductor 44 to a tube-oscillator high-frequency generator 46 which is also connected to the lower electrode directly or through earth 48. In a modification of the compacting means, Fig. 2 (not shown), the compacting plate 2 rests on a pair of cams eccentrically mounted on a shaft that is slowly rotated to provide a limiting reciprocating motion. Spring means may also be provided for adjustably pressing the compacting plate downwards to control the pressure with which it compresses the cereal thereunder.
Patent GB-483082-A (GB)
Title: Improvements in table stands or the like
IPC: A47B13/08
Filed: 1936-10-08
Abstract: 483,082. Tables. EDWARDS, W. H. W. Oct. 8, 1936, No. 27307. [Classes 52 (iii) and 52 (v)] A reversible - top table or stand has the top A pivoted at the centre of its side edges between two side supports B so as to allow complete rotation, a sliding spring plunger F passing through one side support being adapted to engage one of a circular series of holes E in a plate C fixed to the table top to lock the top in the vertical, horizontal, or intermediate positions. The plate C. carries the pivot pin which engages in a bearing D fixed to the support B and having a flange through which passes the plunger F operated by a knob J. The top may be formed of two or more frames hinged together to give four or more different surfaces. The top may be covered with heat-resisting material for use as a firescreen.
Patent GB-604387-A (GB)
Title: Improvements in the method of production of liquid condensable organic compounds starting from vegetable materials
Inventor: URISON JACQUES
IPC: C07C45/78
Filed: 1945-10-18
Abstract: Vegetable raw material is boiled in an autoclave with an equimolecular mixture of sodium carbonate and lime at about 180 DEG C. in the presence of a restricted amount of water.  Lime is added to the mass which is dried and then decomposed in an oven having an exit temperature of 550 DEG  C.  "Old" and "young" wood, shrubs, annual plants such as couchgrass, brooms, vine shoots, p  agricultural waste such as stalks of maize or jerusalem artichokes, potato haulms, grape skins, &c. may be utilized as the raw material.  In an example 100 kg. crushed gorse are mixed with 80 kg. sodium carbonate, 45 kg. quicklime and 150 kg. water, and maintained at 90-95 DEG  C. for two hours in an autoclave into which steam is then injected whilst being externally heated, to raise the temperature to 180 DEG  C. for 12 minutes.  This temperature is maintained for two hours.  Quicklime is introduced and the dry mass is distilled in a rotating oven with exit temperature 550 DEG  C.  Condensates comprising acetone and methyl alcohol, light oils and heavy oils are obtained.
Patent GB-1439362-A (GB)
Title: Filter unit for compressed air systems
IPC: B60T17/00
Filed: 1973-06-08
Abstract: 1439362 Filter AEROQUIP AG 8 June 1973 [10 Aug 1972] 27436/73 Heading BIT A filter unit for compressed air e.g. in vehicle air brake systems comprises a well 26 with inlet 58 and outlet 79 and a sump 61 for particles of dust and moisture, a filter element (e.g. of oil trapping plastics material) 49 and a dessicant bed 50 having entry and exit screens 83 and 39; and a dump valve 68 and seat 69 for removing sump residues. Dump valve 68 may act as a safety valve if a compression pump causes an undue pressure rise when a radial passage from sump 61 to dump valve 68 allows the air to flow between seal 76 and seal 69 and forces valve 68 to lift. Surplus air is then discharged through the dump valve. Normal operation of dump valve 68 is by a signal pressure of air through port 75 which lifts seal 74 and valve 68 allowing sump to empty. A pressure drop across filter and dessicant charge causes housing 37 to lift as shown by lines 40. Seal 63 is then ineffective being opposite recess 40 and air by passes filter to flow directly from inlet 58 to inlet 79.
Patent GB-723523-A (GB)
Title: Interference microscope
IPC: G02B21/14
Filed: 1950-11-09
Abstract: 723,523. Interference microscopes. ZEISSOPTON OPTISCHE WERKE OBERKOCHEN GES. Nov. 9, 1950 [Nov. 15, 1949], No. 27441/50. Class 97 (1). An interference microscope for the superficial examination of a reflecting object has a beamsplitter in the light path between a source, the object and a comparison mirror surface and is characterized in that there occurs multiple reflection of the rays between the object and comparison mirror and interference between the partial beams split off from the multiple reflected rays after each to-and-fro passage between the object and comparison mirror and in that microscope objectives are disposed in the light path between the object and comparison mirror so as to form a real image of the object on the comparison mirror and vice versa. In the microscope of Fig. 1 light from a lamp 1 is collimated at 2 and divided at 3 so that some passes into an observation system 4, 5 and the rest passes to a comparison mirror 7. Light from the mirror 1 returns to the beamsplitter and part is directed on to the object 9 on which an image of the mirror 7 is formed by lenses 6, 8. Part of the light reflected by the object is transmitted to the system 4, 5 so that interference fringes are observed, while the rest of this light returns to the mirror 7. In another form, light from the lamp is first transmitted by an auxiliary beam-splitter and is then reflected or transmitted by the beamsplitter 3 on to the object or comparison mirror, the light after travelling between these two being reflected or transmitted on to the auxiliary beam-splitter which reflects the light into system 4. In one form, Fig. 4, the beamsplitter acts as the comparison mirror and is disposed at 18 between the auxiliary beamsplitter 17 and the object 19. If desired, the light from lamp 1 which is transmitted by the auxiliary beam-splitter 17 may be reflected back by an auxiliary mirror and directed at 17 in to the, observation system 14. In the arrangement of Fig. 6, the beam-splitter 25 covers half the aperture of lenses 27, 29 so that the light reflected by object 28 passes through the uncovered half of said aperture whereas light from mirror 24 passes through the covered half and part thereof is directed into observation system 14 by the beam-splitter. This arrangement may be modified by the provision of an auxiliary beam-splitter between the lamp and beam-splitter 25, Fig. 7 (not shown).
Patent GB-701021-A (GB)
Title: Improvements in or relating to staples
IPC: F16B15/08
Filed: 1951-11-22
Abstract: 701,021. Making staple strips. REECE, J. O., and REECE, S. H. Nov. 22, 1951, No. 27465/51. Class 83 (2). [Also in Group XXV] A flat metal strip 11 is fed step by step under a reciprocating die 14 which cuts out marginal portions to form spaces 17, 18 to provide a number of flat sheet metal staples. The formed sttip is fed by rolls 23, 24 and formed into a spiral 28 on a spindle 26. Specifications 321,751, [Class 89 (2)], 525,649 and 687,089, [both in Group VII], are referred to.
Patent GB-1108761-A (GB)
Title: Improvements relating to electrical scanning apparatus
Inventor: TAYLOR STANLEY
IPC: H04N5/374
Filed: 1964-07-03
Abstract: 1,108,761. semi-conductor devices. ELECTRIC & MUSICAL INDUSTRIES Ltd. 29 June, 1965 [3 July 1964], No. 27487/64. Heading H1K  The source and gate electrodes respectively of an, array of field-effect devices having their drain electrodes in contact with a surface are differently connected together in groups so that the individual devices may be rendered conductive in sequence in order to scan the surface. As shown, the target of a television camera comprises a transparent substrate 1 on which are deposited in turn a transparent conductive signal plate 2, a photoconductive layer 3 of lead oxide or antimony trisulphide, a barrier layer if desired,and, an orthogonal array of aluminium elements 4 forming the drain electrodes of a corresponding array of insulated gate field effect devices each of which further includes a semiconductive layer 6 of cadmium sulphide and insulating layers 5 7, 9 of silicon monoxide. A row of gate electrodes is provided by an aluminium strip 8 and a column of source electrodes by an aluminium strip 10 suitable potentials being commutatively applied to the strips so that the rows and columns are scanner at the required frequencies. The whole may be enclosed in an evacuated transparent envelope.
Patent GB-1428888-A (GB)
Title: Process of manufacturing fired magnesia bricks
IPC: C04B41/50
Filed: 1974-06-20
Abstract: 1428888 Magnesia bricks OSTERREICHISCH - AMERIKANISCHE MAGNESIT AG 20 June 1974 [12 July 1973] 27513/74 Heading C1J Fired magnesia bricks are impregnated with an aqueous dispersion of carbon black then dried with hot air at above 100‹ C. The process can be repeated.
Patent GB-940668-A (GB)
Title: Improvements in or relating to differential feed controls and indicator mechanisms for sewing machines
IPC: D05B27/08
Filed: 1962-07-18
Abstract: 940,668. Sewing machines. G. M. PFAFF A. G. July 18, 1962 [July 19, 1961], No. 27530/62. Heading D1G. A sewing machine having main and auxiliary feed dogs, the strokes of which are controlled by the angular position of respective setting shafts, comprises a pair of rotatable and concentric control shafts respectively coupled to the control shafts, control means adapted to effect synchronous adjustment of the setting and control shafts, first stop means fixed relatively to one control shaft, co-operating second stop means adjustable relatively to the second control shaft for varying the relative strokes of the dogs, and co-operating scale and indicator means carried by the respective stop means to indicate the feed differential. A control shaft 3, rotatably mounted in the sewing machine standard, carries a crank 6 connected by a link 7 to one arm of a double-armed lever 9 rigid with the stroke-setting shaft 8 for the auxiliary feed dog. A hollow control shaft 19, journelled on shaft 3, carries a two-armed lever 21, one arm of which is connected by a link 22 to one arm of a two-armed lever 24 on the stroke-setting shaft 23 for the main feed dog. The other arms of levers 9 and 24 are interconnected by a tension spring 29. The other arm of lever 21 has a follower member 28 co-operating with a cam surface 26 on a rotatable disc 27. A U-shaped stop member 11, pivoted on shaft 3 carries a pair of L-shaped pivoted arms 15 biased by an interconnecting spring 16 into engagement with opposite sides of an abutment 4 on shaft 3 for coupling the latter and member 11 together. A pair of opposed stop screws 12, 13, carried by member 11, are adapted to engage opposite sides of a stop abutment 18 on shaft 19. The arrangement is thereby such that rotation of disc 27 serves to adjust the strokes of the dogs simultaneously. The angular position of member 11 may be varied by adjustment of screws 12,13 for varying the stroke of the auxiliary feed dog alone. A pointer 20 on abutment 18 co-operates with a scale 20 on member 11 to indicate the feed differential. A lever 10 on shaft 3 may be depressed to reverse the feed, normal feed being restored on release of lever 10 by a spring 25 acting on shaft 3.
Patent GB-1505499-A (GB)
Title: Flame tube assembly for a gas turbine engine
IPC: F23R3/10
Filed: 1975-06-23
Abstract: 1505499 Gas turbine combustion chambers LUCAS INDUSTRIES Ltd 23 June 1975 [21 June 1974] 27553/74 Heading F1L A gas turbine combustion chamber includes a flame tube 10 having a frusto-conical baffle plate 12 adjacent the air entry 11, the plate having a double-skinned portion 14, 15 with each skin having apertures 17, 18 therein offset from each other so that air entering the space 13 between the skins acts to cool the baffle. The baffle is supported on the tube side wall and end-wall 26 by vanes 19  which allow axial flow at 24 around the outside of the baffle, but are inclined to swirl the air at 22 passing around the inside edge of the baffle plate. The outer skin 14 is attached only to the vanes 19 to allow relative movement between it and inner skin 15. Each skin has two rows of apertures, Figs. 2 and 3 (not shown).