baber/WOPTO huggingface dataset:
Patent GB-611677-A (GB)
Title: Harvesting machine for root crops
IPC: A01D33/08
Filed: 1946-05-06
Abstract: 611,677. Root crop harvesters. OLSSON, 0. May 6, 1946, No. 13620. Convention date, April 12. [Class 6 (iii)] [Also in Group XXX] A root crop harvester comprises a share 3, an elevator 14, a rotary drum 21, a shaking separator comprising several sifting elements connected to cranks and an endless conveyer belt 43 together with an associated fan 45. The share 3 is adjustable and immediately to its rear is a small conveyer 9 which delivers the crops to the elevator 14 whence they pass to the rotary drum 21 and thence to the sifter mechanism. Each unit of this mechanism is made up of rods to form a grate area shaped to form two levels, potatoes of certain size falling through the rods from one level to the other, the material too large to fall through being shaken off at the side. An inclined plane below the lower level carries material to a longitudinal conveyer 37 from which they pass to a transverse conveyer 43 whereon the material is acted upon by the blast from the fan 45 whereby potatoes are blown off into a collector 46, whilst stones and similar heavy material remains on and is carried away by the conveyer. Conveyer 37 may be replaced by an inclined plane. All the moving parts may be driven from a tractor, a separate motor on the machine, or from a land wheel.
Patent GB-1476088-A (GB)
Title: Carbodiimides
IPC: C07C267/00
Filed: 1975-04-03
Abstract: 1476088 Carbodiimides IMPERIAL CHEMICAL INDUSTRIES Ltd 16 March 1976 [3 April 1975 (4) 16 April 1975 30 Oct 1975] 13656/75 13657/75 13658/75 13659/75 15649/75 and 44965/75 Headings C2C and C2P Isocyanate groups in a refined organic isocyanate are converted to carbodiimide groups by heating the isocyanate with a catalyst of the formula or the 2,3- or 3,4-mono-unsaturated analogues thereof, wherein R is an optionally substituted hydrocarbyl group, R<SP>1</SP> to R<SP>8</SP> are hydrogen, chlorine or C 1  to C 4  alkyl, and X and Y are chlorine or bromine or X and Y taken together are =O, =S, or =N-aryl, and deactivating the catalyst by adsorption on a substrate with subsequent removal of the substrate or by addition of one or more of the halides of hydrogen, phosphorus or tin or an oxyhalide of phosphorus or tin. A proportion of the carbodiimide groups may react on standing with further of the isocyanate groups to form uretonime groups. The catalyst of the formula may be prepared by reacting phenyldichlorophosphine with butadiene, the corresponding oxide and sulphide may be made by from this chloride by hydrolysis or reaction with sodium sulphide, the phospholenes may be obtained by dehalogenation with magnesium and phosphinimines may be prepared by reaction of phosphines with the appropriate azide. The catalyst of the formula may be prepared by reacting the grignard reagent ClMg(CH 2 ) 4 MgCl with phenyldichlorophosphine to form and reacting this with chlorine. The isocyanates containing carbodiimide groups and optionally uretonimine groups produced by the present process may be used to produce polyurethanes.
Patent GB-1032370-A (GB)
Title: Polyisonitriles and a process for their production
Inventor: UGI IVAR
Filed: 1963-04-05
Abstract: Compounds of the formula R(NC)n, where R is an aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic radical (which may be substituted, e.g. by halogen, cyano, sulphone, ether or disubstituted amino groups) which may comprise two such groups linked by a hetero-atom, and n is an integer of at least 2, or R(NC)n represents CO(ORNC)2, PO(ORNC)3 or PS(ORNC)3, are prepared by reacting R(NHCHO)n in suspension in an inert organic liquid medium, with an agent splitting off water in the presence of a base, with vigorous stirring at - 40 DEG  to 120 DEG  C.  Preferred dehydrating agents are acyl halides, such as COCl2, CNCl, cyanuric chloride, CNBr, PCl3, PBr3, POCl3, SOCl2, PhSO2Cl and CH3C6H4SO2Cl.  Compounds R(NC)n as defined above are claimed as novel, except for compounds in which R is aliphatic. The starting formylamines may be obtained from R(NH2)n and formic acid, e.g. in a solvent such as dimethyl formamide, at 80-150 DEG  C. The stated uses of the compounds R(NC)n include use against intestinal parasites of animals and as cross-linking agents for polymers containing carboxy groups.
Patent GB-1472271-A (GB)
Title: Nuclear reactor fuel element sub-assemblies
IPC: G21C5/06
Filed: 1975-03-25
Abstract: 1472271 Fuel elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 25 March 1975 [28 March 1974] 13750/74 Heading G6C A fuel element sub-assembly for a liquid metal cooled reactor comprises a bundle of fuel pins (not shown) enclosed by a tubular wrapper having a lower end journal 1 for plugging into an aperture 7 in an upper wall 5 of a core support structure 4 and a spike bar 2 for plugging into an aperture 8 in a lower wall 6 of the structure 4. The spike bar 2 has a loading disc 3 rigidly attached to its free end for engaging the lower aperture 8. Means for sealing against entry of liquid metal from between the walls 5, 6 of the core support structure 4 to cylindrical engagement surfaces of the loading disc 3 and the aperture 8 comprise a sealing bush 11 and a flexible bellows 14 extending between the bush 11 and a flange 15 welded to the spike bar 2. The bush 11 is laterally movable on the spike bar 2, an annular locating member 13 for the bush 11 abutting the upper face of the loading disc 3 and loosely embracing the flange 15. The complementary apertures 7, 8 have off-set centres and the axis of the lower aperture 8 is inclined towards the vertical axis of the upper aperture 7 so that the sub-assembly is tilted towards a structural member (not shown) which upstands from the core support structure 4. To facilitate plugging of the sub-assembly into the core support structure 4, the loading disc 3 has a tapered extension 10. In use, liquid sodium coolant flows from the space between walls 5, 6 through a filter 17 and upwardly through the sub-assembly. The bellows 14 prevents sodium flow to the face of the loading disc 3 thence to the wall surface of the aperture 8 where precipitates such as oxides could be deposited which might hinder the removal of the sub-assembly from the core support structure by increasing the sliding friction of the loading disc 3.
Patent GB-658363-A (GB)
Title: Improvements in or relating to the preparation of moulds and cores
Filed: 1949-05-24
Abstract: 658,363. Mould materials. FORD MOTOR CO., Ltd. May 24, 1949, No. 13870. Convention date, June 19, 1948. [Class 83 (i)] In the preparation of moulds, the exposed surfaces of metal chaplets are coated with a polyorganosiloxane compound prior to the application of core wash in order to prevent the core wash from adhering to said surfaces.
Patent GB-685361-A (GB)
Title: Improvements in pyrophoric lighters
IPC: F23Q2/02
Filed: 1947-05-23
Abstract: 685,361. Pyrophoric lighters. SHARMAN, H. M. May 24, 1948 [May 23, 1947], No. 13872/47. Class 75(iii) A pyrophoric lighter has a wick mounted in a tube movable in a sleeve mounted in the fuel casing and provided at its upper end with a lug formed integral therewith to enable the tube to be moved into or out of the operative position against friction or by spring action. The wick 3 is held in tube 7 slidably mounted in a sleeve 10 and provided with a thumb piece 8 at its upper end and a flange 9 at its lower end. In a modification shown in Fig. 5 the wick holder 7 is raised or lowered by an arm 16 operated by a lost motion mechanism 18. 19 and 20 when the wick closure member is moved to the 180 degrees position. In a further modification shown in Fig. 6 the rear end of the wick closure member, on movement to the open position, deflects a spring 25 to disengage a catch 23, formed on its forward end, from a lug 26 formed on the tube 7 whereupon the tube 7 is moved upwards by a spring 21.
Patent GB-569751-A (GB)
Title: Improvements in or relating to wedge or v-belting
IPC: F16G5/16
Filed: 1943-08-26
Abstract: 569,751. Driving belts. BRUNT, C. H. Aug. 26, 1943, No. 13958. [Class 80 (i)] Relates to V-belting comprising a flexible belt having blocks of rubber or other resilient material secured transversely to it at spaced intervals the blocks having oblique ends. According to the invention, means are provided to prevent excessive bending or bowing of the blocks under the end pressure exerted by the driving faces of the V-pulley. Each block 1 has a gap 2 the mouth of which is in the back face 3 and the depth of which is greater than the thickness of the belt 4 which fits the gap. The remaining part of the gap is filled with a rectangular block 5 of mahogany or other hard wood, the grain of which runs lengthwise. The block is secured by rivets 6 which extend through the block, the belt and the rubber &c. block 1.
Patent GB-763192-A (GB)
Title: Improvements in means for intensifying and storing images
IPC: H01J29/38
Filed: 1952-05-28
Abstract: 763,192. Television pick-up tubes. SHELDON, E. E. May 28, 1952 [June 1, 1951], No. 14006/54. Divided out of 763,190. Class 39(1). X-ray or atomic particle images are converted by a composite screen or screens into an electron beam which passes through a light reflecting screen and onto the viewing fluorescent screen, the composite screens each comprising a light reflecting layer 7b transparent to X-rays or atomic particles, a fluorescent layer 8b, a chemically inactive transparent barrier layer 9b and a photo-emissive layer 10b as shown in Fig. 3. A layer 29 of X-ray-reacting, electronemissive material may cover the reflecting layer 7b of the first screen. A neutron reactive layer may replace the layer 29. The fluorescent layer may contain powdered glass, the matrix being zinc silicate, selenide or sulphide, calcium tungstate or BaPbSO4. The photo-emissive layer may be calsium oxide/silver or calsium potassium or lithium with antimony or bismuth. The barrier layer may be a suitable plastic and transparent to ultra violet. The remaining subject matter of the Specification is substantially the same as that described in Specification 763,190. Specification 763,191 also is referred to.
Patent GB-844696-A (GB)
Title: Method of preparing duplicating master sheets
IPC: B41M5/04
Filed: 1956-11-21
Abstract: 844,696. Printing surfaces. DITTO Inc. Nov. 21, 1956 [Nov. 21, 1955], No. 14012/59. Divided out of 844,695. Class 100(2) A method of preparing a duplicating master printing sheet comprises forming as assembly of sheets by placing a stencil imaged sheet 1 in contact with a second sheet 11 which in turn is placed in contact with a fusible layer 4 on a carbon or like transfer sheet 3, exposing the surface of the imaged sheet to infra-red radiation to transfer composition corresponding to the image to the sheet 11. The method is applicable to the production of master sheets for use in spirit duplicating processes, hectographic processes, and planographic or lithographic processes, the coating on the transfer sheet being chosen in accordance with the process for which the master to be prepared is to be used. As shown the stencil sheet 1 with the imaged side facing outwards is clamped together with the sheet 11 and the transfer sheet 3 having a coating 4, on a cylinder 6 and rotated past a slot 9 in a member 8 beneath which is an infra-red source 10. The source 10 preferably has an intensity of 1350 watts and is placed 1/16 inch from the surface of the copy sheet. The rotation of the cylinder is such that the exposure time is 1/10 second. On removing the transfer sheet from the sheet 11 the back of the sheet 11 has imaged portions which correspond to and are a mirrorimage of the original image on the front of the copy. The back of the sheet 11 may thus be used as a master sheet for direct printing as in a spirit duplicating process. When the master is to be used in gelatin processes a direct reading image may be obtained by placing the stencil sheet 1 face downwards on the transfer sheet.
Patent GB-375030-A (GB)
Title: Improvements in and relating to carrying or retaining means for books and the like
IPC: A45F5/12
Filed: 1931-05-12
Abstract: 375,030. Book &c. holders ; brackets ADAIR, M. E., 63, Bouverie Road, Harrow, Middlesex, and MARSDEN, F. M., 339, Brockley Road, Brockley, London. May 12, 1931, No. 14022. [Class 52 (v).] A holder for books &c. comprises a rod 1, Fig. 1, lying between the leaves close to the binding, and a second rod 2 lying along the outside of the bound back, the rods being separated by distancepieces 3, freely carried on the rod 1, which is removably carried in supporting lugs 4. The lugs 4 may be attached to a wall, or, as shown in Fig. 10, the bars 1, 2 may be mounted on members 17, pivotally attached at their centre to a strip 16, which is mounted on the wall, and the ends of which are so arranged that the rods and their attached books are inclined to the wall. The device may be suspended by a cord &c., or held in the hand.
Patent GB-1562254-A (GB)
Title: Bumpers for motor vehicles
IPC: B60R19/18
Filed: 1977-04-04
Abstract: The bumper consists of the assembly of a rigid plate (2) and a profiled section (3) made of elastomer material, which are joined together by vulcanisation. The profiled section made of elastomer material has at any section normal to its development a plurality of ribs, some of which are normal (6A) and some of which are inclined (8A, 8B) relative to the surface of joining of the profiled section with the plate, these ribs being intersected with one another. This bumper withstands higher impact loads than those which only have ribs which are perpendicular to the surface of joining between the profiled section and plate. <IMAGE>
Patent GB-1020167-A (GB)
Title: Preparation of calcium dihydrogen orthosilicate
IPC: C01B33/24
Filed: 1963-04-09
Abstract: Calcium silicate phosphors are prepared by firing once a mixture of specially prepared calcium dihydrogen orthosilicate (see Division C1) and Sn or Mn, and/or Pb.ALSO:High-purity calcium dihydrogen orthosilicate is prepared by forming a CO2-free alkali metal silicate solution (mol. ratio SiO2/alkali metal oxide being about 0.75 to 1.0) from alkali metal ions and silica gel, mixing the silicate solution with an acidified CaCl2 solution having a pH between 1 and 5 at an elevated temperature, recovering the precipitated calcium dihydrogen orthosilicate and drying it in a CO2-free atmosphere. The CO2-free alkali metal silicate solution may be prepared by reacting 0.38 to 0.5 moles of silicon gel with 1 mole of alkali metal hydroxide or 1/2 mol. alkali metal oxide.  A 0.05 to 2.50 molar alkali metal silicate solution (mol. ratio SiO2/K2O of 0.75 to 1.00) may be added to a boiling 0.05-3.00 molar calcium chloride solution previously purified from Fe, Ni, Co and Pb by reaction with ammonium sulphide and now acidified to a pH 1-5 with HCl, and the calcium dihydrogen orthosilicate filtered, washed and dried at 150-250 DEG  C.  Or, an alkali metal silicate solution and calcium chloride solution of concentrations similar to the above may be added simultaneously at 60 DEG -150 DEG  C. or higher to a tank at a rate of 0.4 to 0.8 moles alkali metal silicate per mole of calcium chloride per hour, and the product filtered, washed and dried.
Patent GB-1085745-A (GB)
Title: Improvements in or relating to the measurement of heat exchange
IPC: G01K17/08
Filed: 1966-03-30
Abstract: 1,085,745. Measuring heat electrically; heat meters. SVENSK VARMEMATNING A. B. March 30, 1966 [March 31, 1965], No.14183/66. Headings G1D and G1N. An apparatus for measuring the heat lost in a loop of, for example, a central heating system, includes two thermistors 3, 4 Fig.1 in the inflow and return lines 1, 2 respectively, a switch 6 which closes each time a fixed quantity of heating medium has flowed through the loop, and a bridge circuit containing the thermistors 3, 4 which has its unbalance voltage, as indicated by a meter 18, nulled by a rebalancing potentiometer 16 driven by a motor 13 each time the flow measuring switch 6 operates, a counter 12 being driven by the motor so that its indication is proportional to both the temperature difference between thermistors 3, 4, and the rate of flow of medium. The rebalance potentiometer 16 is returned to zero after each operation by a spring 17. A transistor switching circuit 22 is arranged to energize the motor 13 and operate a clutch 15 when switch 6 operates, provided that the meter 18 is not reading zero, as detected by a photocell 19. In an alternative form, Fig.2 (not shown) a circuit (27) containing a capacitor (29) is charged from a D.C. source (25), each time the switch (6) operates, to null the bridge output voltage, the motor (13) being arranged in this case to drive only the counter 12 for a period determined by the time constant of the circuit, and by the temperature difference. The rebalancing operation, having been initiated by switch 6, is allowed to continue by a self-holding relay 23 which releases when rebalance is achieved, as detected by the photo-cell 19. The temperature differential may be measured alternatively by Bourdon tubes (30, 31) Fig. 3 (not shown) responsive to the pressures in capillaries (36, 37) connected to liquid filled capsules (3, 4) in the inflow and return loops, the Bourdon tubes being connected to a differential gear (38), the output shaft (39) of which is connected to a disc (32) having an arcuate window (33). A second disc (35) also with an arcuate window (34) is connected to the counter motor (13) via a clutch (15), and is rotated through the same angle as the disc (32) has been turned through each time the switch (6) operates, the clutch being deenergized when a light source (20) first ceases to be detected by a photo-cell 19. A spring (17) returns the second disc (35) to its original position after each operation.
Patent GB-1463837-A (GB)
Title: Ignition devices
IPC: F23Q2/28
Filed: 1974-04-01
Abstract: 1463837 Piezoelectric igniters RONSON PRODUCTS Ltd 1 April 1975 [1 April 1974] 14364/74 Heading H2A In a piezoelectric igniter, a spark electrode 1 is located by an insulating bush 6 and is in electrical contact with a high voltage conductor 7 connected to the crystal assembly (not illustrated) of the igniter, the bush 6 being secured with respect to the electrode 1 and the conductor 7 by means of a sleeve 9 of insulating material which extends over part of the bush 6, e.g. a spigot portion 10, and at least part of the conductor 7, and which is heat-shrunk on to the bush 6 and conductor 7. The conductor 7 is preferably provided with an inner insulating sleeve 11 extending from a covering 8 to a widened portion 5 of the electrode 1, into which the conductor 7 fits. The bush 6, which receives the electrode 1 therein as a sliding fit, has a curved surface 12 to provide a maximum anti-tracking path length between the electrode 1 and adjacent parts of the igniter housing (3, Fig. 1, not shown), and has flanges 13, 14 for mounting to a housing bracket (2). The conductor 7 may alternatively extend through the bush 6 to form the actual electrode 1. The sleeve 9 may be an irradiated cross-linked polyethylene which can be heat-shrunk by hot air or infra-red radiation.
Patent GB-143873-A (GB)
Title: Manufacture of calcium carbide
IPC: C01B32/942
Filed: 1920-05-26
Abstract: Briquets for making carbide are made by mixing lime or slaked lime and non-coking coal such as anthracite with enough water to render the mixture sufficiently plastic for pugging.  The briquets are dried and hardened by air-drying at ordinary or raised temperature, preferably first at ordinary temperature and then at a gradually increasing temperature which may reach 900 DEG  C. at the end, so as to expel all combined water.  The heating should be effected under reducing or non-oxidizing conditions and without exposure to much carbonic acid.  The production and treatment of the briquets and the production of the carbide may be effected in a continuous process. Specifications 133,354 and 133,355 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use of other non-coking carbons such as coke, wood-charcoal, &c. and of a binder such as tar, molasses, sulphite pitch &c.  This subject-matter does not appear in the Specification as accepted.
Patent GB-559762-A (GB)
Title: Improvements in means for launching aircraft
IPC: B64F1/04
Filed: 1942-10-14
Abstract: 559,762. Launching aircraft. JAMES, Ltd., W. & H. H., and JAMES, W. Oct. 14, 1942, No. 14378. [Class 4] Aircraft launching means comprises a tower a provided with a spirally arranged track c up and along which the aircraft travels from a lower straight leading in section to a straight launching deck section at the top. An outer flange d on the track may serve as a guide for the wheels of the aircraft. The device is mounted on rollers f so that the aircraft may take off into the wind. A lantern or beacon b is provided.
Patent GB-146699-A (GB)
Title: Improvements relating to portable cooking stoves
IPC: F24C5/20
Filed: 1919-06-06
Abstract: 146,699. Curnow, A. J., and Howes & Burley. June 6, 1919. Cooking - stoves; portable oil stoves.-A portable stove consists of an open-topped casing a for a wickless oil lamp, having perforated sides with a door b, together with a hollow sliding shelf d, which, when drawn out to the position shown, supports a cooking-utensil, hot gases from the lamp passing into it at the open end e. The shelf is supported by a detachable wire strut k, and also by a carrying-handle g of the stove, which turns down into the position shown and rests on sockets j.
Patent GB-1128403-A (GB)
Title: Improvements in and relating to electrical impulse converters
Inventor: SCHNEIDER FREDERICK EDWARD WIL
IPC: H01H47/00
Filed: 1966-04-01
Abstract: 1,128,403. Electric clocks. ENGEL & GIBBS Ltd. March 28, 1967 [April 1, 1966], No.14579/66. Heading G3T. In a circuit for halving the repetition rate of electrical pulses, each pulse is arranged to energize a first relay P/1 momentarily, a contact P1 of which energizes a second relay A/2 which is held energized by a contact A1 and a further relay B/2 is energized after a time delay determined by resistor R2 and capacitor C, setting contacts B1 to their upper position. The next input pulse momentarily energizes relay P/1, so that contacts P1 release relay A/2 by short circuiting its coil. The release of relay A/2 allows relay 0/1 to be energized via contacts B2 and A2, relays B/2 and 0/1 being released when capacitor C is discharged. The momentary energization of relay 0/1 closes contacts 01 which thus provide a short pulse at terminal 7, 8 for each energization of relay P/1 The invention is applicable to halving the frequency of pulses occurring one every 30 seconds at terminals 1, 2 from a master clock. A push button P may be provided to simulate output pulses for the purpose of slave clock correction. Relays P/1, A/2 and B/2 are preferably of the reed type.
Patent GB-355318-A (GB)
Title: Improvements in or relating to coated flexible materials
IPC: C08J7/046
Filed: 1930-05-12
Abstract: Flexible cellulosic materials substantially free from projecting fibres, such as cellulose esters, viscose and the material known under the registered Trade Mark "Cellophane," in the form of tubes, rods, sheets, threads or strings are coated with a flexible resinoid. The resinoids may be those inherently flexible, for example reactive phenol-oil-methylene resinoids, or resinoids plasticized by incorporation of a high-boiling solvent other than an alcohol such as glycerol, for example, phenolic resinoids such as those of the phenol-urea type or polyhydric alcohol-polybasic acid resinoids.  The resins are dissolved in solvents to form varnishes which are applied by dipping, spraying or rollers or by passage of the material through the varnish bath. In an example, a sheet of viscose is passed through a bath of a varnish consisting of a phenoltung oil-methylene resin in a volatile solvent such as alcohol, benzol, acetone or petrol and dried by air at a temperature of about 135 C.  The product is suitable as insulation for cables and condensers and may be used for automobile curtains.  Specification 229,161, [Class 140, Waterproof &c. fabrics], is referred to.