baber/WOPTO huggingface dataset:
Patent GB-785995-A (GB)
Title: Improvements in or relating to the preparation of titanium carbide, boride or nitride
IPC: C01B31/30
Filed: 1955-08-11
Abstract: In the production of titanium boride, carbide or nitride of particle size 1-15 microns, there is employed a mixture of titanium hydrate, "alkali altered titanium hydrate," or hydrated titanium phosphate, and carbon produced by precipitating the hydrated titanium compound in the presence of the carbon particles.  "Alkali altered titanium hydrate" is produced by precipitating titanium hydrate with alkali and then adding additional alkali, the altered hydrate being converted on calcination to an alkali metal titanate or mixture of alkali metal titanates.  An intimate mixture of titanium hydrate and carbon particles may be first formed and the titanium hydrate then converted to phosphate by treatment with an aqueous solution of phosphoric acid or a phosphate.  The titanium compound may be produced from a titaniferous ore, ore concentrate, or slag by treatment with sulphuric or hydrochloric acid.  Precipitation may be aided by the addition of previously precipitated titanium hydrate. The precipitation may be carried out at 100-500 lb./sq. in.  Examples specify the production of titanium boride, carbide and nitride from titanium hydrate and phosphate by calcination at temperatures of 1350-1650 DEG C. for 2 hours in argon or nitrogen.
Patent GB-517742-A (GB)
Title: Improvements in or relating to the production of titanium dioxide pigments
IPC: C01G23/047
Filed: 1938-08-06
Abstract: 517,742. Titanium pigments. BRITISH TITAN PRODUCTS CO., Ltd. Aug. 6, 1938, No. 23245. Convention date, Aug. 7, 1937. [Class 95] A process for the production of titanium dioxide pigments, in which the titanium dioxide has the rutile crystalline structure, comprises forming an intimate and uniform mixture of anatase titanium dioxide and a quantity, not exceeding an amount equivalent to 5 per cent. of the weight of titanium dioxide, of an inorganic compound classifiable within one of the following crystallographic groups, viz., the spinel group, the corundum group, the phenacite group, the ilmenite group and the sodium chloride group, the compound being capable of reacting in the solid phase with the titanium dioxide to form a solid combination possessing a critical thermal stability point and capable of decomposing on heating without change in phase, and heating the mixture up to and above the critical thermal stability point in order to effect decomposition whereby the anatase titanium dioxide is converted to rutile titanium dioxide. The inorganic compound may, if desired, be mixed with a portion of the titanium dioxide and the mixture heated to a temperature below the critical thermal stability point, the solid combination so formed then being mixed with the bulk of the titanium dioxide and the mixture heated above the critical temperature to effect conversion of the titanium dioxide. Specified inorganic additions are zinc ortho-titanate, zinc stannate, lithium titanate, magnesium meta-titanate, zinc orthosilicate and zinc-magnesium meta-titanate. Two per cent. by weight of these additions give the preferred results, though as little as 0.5 per cent. gives satisfactory results. The critical thermal stability point may be determined by X-ray analysis of samples of the heated mixture, and temperatures of 825‹C. to 950‹C., and heating periods of 3 to 6 hours are found to be suitable. The process is applicable not only to titanium dioxide possessing the anatase crystalline structure, but also to hydrated titanium compounds obtained by hydrolytic precipitation which yield anatase titanium dioxide on heating. Examples are given. The products may be used as pigments or fillers in coating compositions or plastics. According to the Specification as open to inspection under Sect. 91, the inorganic compound which is mixed with the titanium dioxide does not necessarily fall within any of the specified crystallographic groups, and the amount used is not limited. This subject-matter does not appear in the Specification as accepted:
Patent GB-982988-A (GB)
Title: Improvements in or relating to methods of control for operating inversely connected rectifier vessels
IPC: H02P29/40
Filed: 1961-06-27
Abstract: 982,988. Converting; control of D.C. motors. BROWN, BOVERI & CO. Ltd. June 27, 1961 [June 29, 1960], No. 23249/61. Headings H2F and H2J. In an arrangement in which a reversible D.C. motor M is fed by two groups of converting elements S1, S2, in anti-parallel or crossconnection so as to supply current in either sense, and in which each group may act as a rectifier or as an inverter for regenerative braking, the operation to reverse the direction of the motor consists in the following steps to that circulatory currents through the element groups are avoided: (a) Group I (say S1) conductive, Group II (S2) cut-off; (b) grid pulses on Group I delayed for maximum inverter operation, Group II still off; (c) current drops to zero; (d) Group II conducts to supply current in reverse sense Group I remaining cut-off. The mechanism for effecting this operation comprises various comparator circuits and gate circuits utilized with measures of the actual current flow J  A   ist  and the desired current flow J  A   soll . As shown, grid control units GS1, GS2 for the elements S1, S2 each have three inputs. A first input which is the error signal of J A soll  and J A ist  derived from a comparator V and amplified at R, shifts the phase of the grid pulses normally. A second input WR1 or WR2 independent of R serves to phase shift the pulses to maximum inverter angle and is applied to that element which should not be conducting as determined by the direction of the desired current J A  soll A third input Sp1, Sp2 serves to suppress signals completely and render the vessel S1 or S2 non- conducting. These signals Sp1, Sp2 are derived from an arrangement of monostable triggers Ts, Ti, Tu1 Tu2, two " and " gates U 1 , U 2 , and two " or " gates 01, 02, whose operation is disclosed.
Patent GB-1062128-A (GB)
Title: Improvements in or relating to methods for recording pages for a picture telegraphy receiver, and apparatus therefor
IPC: G03G15/32
Filed: 1964-06-04
Abstract: 1,062,128. Printing apparatus. R. HELL. June 4. 1964 [June 4, 1963], No. 23284/64. Heading B6C. [Also in Divisions G2 and H4] Picture telegraph signals received at 40 are recorded line-by-line on a circulating endless tape 7 and each line in its entirety is transferred to a paper sheet 12 which is moved in a direction perpendicular to the direction of movement of the tape, the arrangement being characterized by the use of a xerographic process for the recording and transfer of the signals. Thus in the embodiment illustrated the received signals modulate a high voltage from a source 15 in a stage 14 and are applied to a needle electrode 16 to cause negative charges to be laid down on the surface of the tape which is in the form of an insulating material with an inner metal lining 7. A guide pulley 4 maintains the lining at earth potential. The latent charge pattern for each line is rendered visible by dusting with positively charged powder particles, which are carried by iron filings and placed on the tape by a magnetic brush 17, and is thereafter transferred to paper 12 by pulsing negatively at the appropriate time a conductive roller 10 over which the paper sheet passes in the vicinity of the tape. The transferred recording is fused to, the paper by heat from an infra-red lamp 23. Pulsing of roller 10 at the appropriate times is effected by magnetic induction generator 27, 28 associated with the drive to the tape. The generator controls a gate stage 21 through which a negative high voltage source 22 is connected to the roller. Prior to a subsequent recording on tape 7 the previous recording is erased by an earthed brush 30. The receiver is started into operation by a start relay F in response to a prolonged start signal, correct phasing being achieved by electromagnetic clutch mechanism 37, 38. Interruption of signals at the termination of transmission stops the receiver by way of relay F. The control of drive motors 1, 9, 18, 32 and the switching of lamp 23 is effected by relay R. In a second embodiment, Fig. 2 (not shown), the latent charge pattern on tape 7 is rendered visible by a liquid die which is supplied through a capillary outlet controlled by the signal from modulator stage 14. In a third embodiment, Fig. 3 (not shown), the latent charge pattern is not developed visually but is transferred from the tape to the paper which is thereafter processed by conventional xerographic techniques. A fourth embodiment, Fig. 4 (not shown), makes use of a tape having an outer photoconductive layer as well as the inner conductive layer. The photoconductive layer is given a preliminary negative charge and is then selectively discharged in accordance with the signals to be recorded by exposing the tape to a light source modulated by the signals. In each of these further embodiments the constructional details areo therwise similar to those shown in Fig. 1.
Patent GB-508434-A (GB)
Title: Improvements in cabinets for radio-receivers and other containers
IPC: H04B1/08
Filed: 1938-08-08
Abstract: 508,434. Corner joints ; lids. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 8, 1938, No. 23361. Convention date, Aug. 11, 1937. [Class 18] [Also in Group XXII] A cabinet for a radio-receiver or other box, casing or part thereof is made by connecting two or more walls 3, 4 by casting thereon columns or supports of metal. The walls may be flat or curved and may be made of synthetic resin, e.g. that known under the Registered Trade Mark " Pertinax," or paper or cardboard impregnated with synthetic resin and if not sufficiently rough may have perforations 7, 8, grooves 10, 11, Fig. 4, or ribs to secure adhesion of the metal. This may comprise lead, tin, or other fusible metal or a fusible alloy, e.g. of zinc, and may be die-cast to form a column inside at 6 or outside at 9, or both.
Patent GB-1385293-A (GB)
Title: Lens adapter
IPC: G03B3/02
Filed: 1973-05-16
Abstract: 1385293 Lens adapter ring FRANKE & HEIDECKE GmbH [trading as ROLLEIWERKE FRANKE & HEIDECKE] 16 May 1973 [21 June 1972 5 Jan 1973] 23384/73 Heading G2A An external bayonet/internal screw fitting lens adapter ring 1 has a coupling device (for actuating a lens diaphragm- or shutter-operating push rod 21 by a push-rod 22 within the camera housing) comprising a pair of super-imposed rings which, at one side of their periphery, are adjacently mounted on a common pivot and which, between the push-rods at the opposite side of their periphery, are normally spaced apart but are capable of being pressed together against a spring bias on the application of a force in excess of that required to operate the diaphragm or shutter. The rings enable operation when the rods are out of alignment. Rings 12 and 13 may be separately pivotable at 11 and be separated, at the opposite side of their periphery by an excess stroke spring 14, Fig.1. Alternatively, rings 4 and 5 may be integrally pivotable at 6 and have bent apart spring portions at the opposite side of their periphery, Fig.2b.
Patent GB-229361-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08K5/17
Filed: 1923-09-19
Abstract: 229,361. Mackay, H. A. Sept. 19, 1923. Emulsions, making.-Bituminous emulsions, for use in road-making, coal briquettes, and as a preservative coating on wood, stone, metal, felt, &c., are prepared by adding to the molten or liquid bituminous material an emulsifying agent comprising trimethylamine or other aliphatic amine or mixtures thereof and adding hot water to the mixture. Part of the amine emulsifying agent may be replaced by fatty acid, in which case an alkali or borax is also added. In examples, Mexican asphalt is melted in a jacketed tank provided with a stirrer and either a cold aqueous solution of trimethylamine, or in order oleic acid, caustic soda, and aqueous trimethvlamine are stirred in and finally hot water added. The emulsifying agent may be the mixture of fatty amines obtained by dry distilling beet sugar residues and the bituminous material may be tar. The Provisional Specification describes the use as emulsifying agent of a decomposition product of a nitrogenous animal or vegetable substance.
Patent GB-490330-A (GB)
Title: Improvements in or relating to the doors of wagons, hoppers and like containers
IPC: E05F11/04
Filed: 1937-08-27
Abstract: 490,330. Delivering materials from hoppers; door - operating appliances. SUMMERS & SONS, Ltd., J., and COX, H. Aug. 27, 1937, No. 23472. [Class 78 (i)] [Also in Groups XXV and XXXII] The discharge opening in the wall of a wagon, hopper, or like container, such as a railway wagon as shown in Figs. 2, 3, is closed by overlapping pivoted doors 11, 12 which open upwardly and downwardly respectively, when a lever 15 is rotated clockwise about its pivot 16 by pulling a cable 26, the door 12 being connected directly to the lever and the door 11 being attached to an arm 18 pivoted to the lever. Theopening movement of the doors is limited by a U-shaped member 24 on a lever 22 engaging the lever 15. A pin-and-slot connection 20, 21 between the arm 18 and the door 11 enables the door 12 to open first. The bottom of the wagon slopes downwardly towards the open door 12 which serves as a shoot. Two sets of doors may be arranged side-by-side extending over the whole length of the wagon.
Patent GB-257418-A (GB)
Title: Improvements in methods for the production of tetrazoles
IPC: C07D257/06
Filed: 1925-09-21
Abstract: 257,418. Schmidt, K. F. Sept. 21, 1925. Addition to 252,460. Tetrazoles.-In a modification of the process claimed in the parent Specification, tetrazoles are obtained by treating carbonyl compounds with excess of hydrazoic acid in the presence of concentrated mineral acids. The carbonyl compound is added to a cooled solution of hydrazoic acid in benzol, ether, or tetrahydronaphthalene acidified with sulphuric acid. In examples (1) cyclohexanone yields pentamethylenetetrazole, with eleucinelactam as a by-product, (2) acetone yields dimethyltetrazole which is isolated by neutralizing the acid layer of the reaction liquid, precipitating the molecular compound of the tetrazole with mercuric chloride, treating a solution of the latter with sulphuretted hydrogen, filtering and evaporating the filtrate, (3) benzophenone yields phenylamino-phenyltetrazolone.
Patent GB-443003-A (GB)
Title: Improvements in labelling machines
IPC: B65C9/02
Filed: 1935-08-24
Abstract: 443,003. Labelling-machines. CHRISTENSEN, C. A., 12, Bellisvej, Copenhagen. Aug. 24, 1935, No. 23771. [Class 73] In a labelling-machine in which the centre of the label is held by an arm on to a bottle which passes between wipers, the arm 16 is pivotally mounted on the head 4 which engages the top of the bottle to hold it on the support 1, the arm being operated by a rack 13 actuated by links 10, 11 operated by the rocking movements of a rod 9 carried by the standard 3 and actuated by an arm 18 engaging a guide rail 20.
Patent GB-682775-A (GB)
Title: Improvements in the compression of tobacco into shaped masses
IPC: B65B63/02
Filed: 1949-09-16
Abstract: 682,775. Wrapping-machines. WAITE, W., and ROSE BROS. (GAINSBOROUGH), Ltd. Sept. 13. 1950 [Sept. 16, 1949], No. 23865/49. Class 94(i) Tobacco is compressed into a mould chamber by a reciprocating member, and as the compression surface of the member is withdrawn from contact with the compressed mass of tobacco, there is brought about a relative lateral movement between the mass and the compression surface in the plane containing that surface. A charge of tobacco fed to a chute 11 is pressed down into a partly folded wrapper 16 in a pocket 13 of a mould wheel 14 by a plunger 12 oscillated about a shaft 33 by a camoperated link 34; the wrapper being further folded to complete the package after the compressing operation. A compressing face 17 of the plunger is secured to a block 18 freely mounted on an eccentric 19 continuously rotated in a plunger head 21, the block 18 being guided by pins extending therefrom into larger holes in the plunger head 21, the surface 17 of the plunger thus having a continuous lateral movement. The eccentric 19 may be rotated by chain or belt gearing from the shaft 33 or by an electric motor carried by the plunger. The ends of the pockets 13 may be reciprocated in unison in a direction parallel to the face of the plunger during withdrawal thereof so as to move the compressed mass bodily instead of moving the plunger face laterally.
Patent GB-1151222-A (GB)
Title: Improvements in and relating to Hypodermic Syringes
IPC: A61M5/28
Filed: 1965-06-04
Abstract: 1,151,222. Hypodermic syringes. S. M. WHITESMITH. 6 June, 1966 [4 June, 1965], No. 24021/65. Heading A5R. A hypodermic syringe cartridge has a sheathed needle pointed at both ends and fixed in a hub 30 which is slidable in a sleeve 12 fitted on the cartridge, the hub and sheath 44 being such that, as the cartridge is inserted in a syringe barrel, an annular flange of the syringe barrel engages the hub so that it slides and is locked into a position in which the needle pierces a seal 20 of the cartridge but does not engage the needle sheath, which may subsequently be removed as desired. The cartridge 10 of glass or plastics is closed at one end by a seal 20 which is secured with a bush 12 to the cartridge by an apertured metal cap 16. The needle is fixed in a hub 30 which has a shoulder 40 and which is gripped by the bush to hold the needle spaced from the seal. For use, the needle hub is pushed towards the seal so that the needle pierces the seal and is locked by engagement between the shoulder 40 and an annular recess 38 in the bush bore 36. The hub may have two shoulders (Figures 3 to 5, not shown) each engageable with a correspondingly shaped recess in the bush bore for holding the needle in positions in which it is spaced from and pierces the seal, respectively. The needle may be secured to a hub made of polyethylene or polypropylene by cement or to a hub of steel or aluminium by solder. Alternatively, the hub may be moulded around the needle or made in two parts secured around the needle by welding or cement. The seal may be made of ethylene vinyl acetate copolymer film in one piece with the bush. The needle sheath is made of polythene, polystyrene, polypropylene or nylon.
Patent GB-367326-A (GB)
Title: Improvements in surface condensers with vertical tubes
IPC: F28B9/08
Filed: 1930-08-11
Abstract: 367,326. Surface condensers. SOC. DES CONDENSEURS DELAS, 103, Rue St-Lazare, Paris. Aug. 11, 1930, No. 24030. Convention date, June 6. Void [Published under Sect. 91 of the Acts]. [Class 64 (iii).] In a vertical tube condenser plates 10 are provided to prevent condensed liquid from running down the surface of the tubes 1. The joints between the tubes and the plates are made watertight by covering the upper surface of the plates with an elastic material such as rubber. Apertures 13 are provided for the condensate to run off. These may be in the form of a central hole 16 provided with a rim 17 and surrounded by holes 19 ; the jets of water falling through the latter are said to draw air through the central aperture towards the air exhaust 5. The condensate is preferably withdrawn from the hotter side of the condenser, as at 4, while the drains 13 are placed on the colder.
Patent GB-376072-A (GB)
Title: Process for the coking or low-temperature carbonisation of fuels
IPC: C10B7/06
Filed: 1931-08-26
Abstract: 376,072. Coking processes. METALLGES. AKT.-GES., 45, Bockenheimer Anlage, Frankfort-on-Main, Germany. Aug. 26, 1931, No. 24030. Convention date, Sept. 11, 1930. [Class 55 (i).] In a process of high or low temperature carbonization, fuel is fed from a hopper 1 on to a travelling grate 9, and is ignited by a device 3, the coking taking place by partial combustion at the surface of the charge in air drawn by suction boxes 4 through the charge. The ignited fuel is cooled and extinguished by water sprays 5, and the coke is discharged on to a grating 6, the fines falling into a hopper 7. A layer of foundation material may be fed on to the grate from a hopper 2, and the charge may be disposed in several layers of different fuels, or a mixture of fuels may be employed. The distillates may be drawn off separately at various points along the grate. Other gases, for example those obtained from the process, may be mixed with the air passed through the fuel. Large quantities of combustible gases may be obtained by allowing the gasification to proceed concurrently and at the expense of the carbonization process.
Patent GB-1111958-A (GB)
Title: Process for production of propionitrile and catalysts therefor
Inventor: KING BERTRAM THOMAS
IPC: B01J23/85
Filed: 1966-05-27
Abstract: Acrylonitrile is hydrogenated to propionitrile at a pressure greater than atmospheric in the presence of a catalyst comprising metallic Ni and/or Co together with oxides of the metals of Group VIa.  The hydrogenation may be effected at 50-120 DEG  C. using a large hydrogen excess at 10 atmospheres, if desired in the presence of solvents e.g. n-butanol.  Examples describe the hydrogenation of 30/70 v/v. acrylonitrile in n-butanol in stirred autoclaves at 80 DEG C., 220 atmospheres.ALSO:Hydrogenation catalysts are prepared by mixing oxides of Group VIA metals with Ni and/or Co oxides and reducing the mixture with H2 or a hydrogen-containing gas at 350-600 DEG C.  Conventional preparative details are disclosed using CrCO3, (NH4)2 Mo7 O24 and WO3 + NiCO3 and/or CoCO3 as starting materials. Additionally the catalysts may contain g -Al2O3, pumice, Kieselguhr or aluminium silicate as a carrier.
Patent GB-481354-A (GB)
Title: Improvements in or relating to turning buckle
IPC: A43C11/08
Filed: 1937-09-03
Abstract: 481,354. Buckles. SALCHER A SYNOVE AKCIOVA SPOLECNOST, M. Sept. 3, 1937, Nos. 24128 and 24129. Convention dates, Oct. 21, 1936 and March 3,1937. [Class 43] A buckle comprises a strip 1 having diametrically opposed projections 2, 3 bent over parallel to each other and to the strip so that a band placed between them can be engaged on a pin mounted in a hole 10 in the strip and the buckle rotated so that the projections move into a position transverse to the band, Fig. 6, and hold the band on the pin. The buckle may be connected to the return end of the band or to footwear by means of the pin which is of the composite form shown in Fig. 3. The pin is passed through a hole in the band or footwear and then through the hole 10 of the buckle and the end 15 is riveted over to secure it in position. In a modified form, the pin may connect an ornamental plate to the buckle, the ornamental plate having a slot for the attachment of the band end. In another modification, a base-plate is connected to a band or footwear by prongs struck out of the plate on to which the buckle is pivoted eccentrically. In a further modification, a hollow pin is rotatable in the hole 10 of the strip, a spring plate 47 being attached to its lower end so that the return end of the band or a part of the footwear may be connected to the buckle by passing a spike 59 through the footwear or band and forcing it through the hole in the spring plate into the pin. The pin may have projections to engage the band or footwear and prevent relative rotation.