baber/WOPTO huggingface dataset:
Patent GB-572569-A (GB)
Title: Improvements in or relating to planetariums or the like
IPC: G09B27/02
Filed: 1939-04-13
Abstract: 572,569. Celestial domes. LINK, E. A. April 13, 1939, No. 11448/40. Convention date, Jan. 14, 1939. Divided out of 572,295. [Class 146 (ii)] [Also in Group XXXIII] A celestial dome, for use in training in navigation, has sources of illumination simulating the stars, some or all of which are provided with collimators. In the form shown, an aviator's cockpit 24 mounted as in Specification 370,128 has a transparent dome 27 through which a dome 37 can be observed. The dome has lamps 32 representing the stars, some of the lamps having lens systems 97, Fig. 3, directing parallel beams of light each towards the centre of the dome to enable accurate sextant readings to be taken. The dome 37 is mounted on a carriage 78 so that it can be traversed along a fixed rack 52 and also rotated relative to the carriage to simulate changes of latitude and longitude, and the passage of time, and to enable problems of nagivation normally taking hours to be simulated in a few minutes. These movements are effected from and indicated at an instructor's control panel 65. The dome may be fitted with representations of the stars in both the northern and southern hemispheres alternatively illuminated. Specification 572,295 also is referred to.
Patent GB-234267-A (GB)
Title: Improvements in fine adjustment mechanism for electric coil holders
IPC: H01F27/00
Filed: 1924-05-09
Abstract: 234,267. Turner, W. G. May 9, 1924. TVireless tuning-apparatus, adjustment devices for.-A coil-holder for applying reaction or loose coupling in wireless sets comprises plug-andsocket blocks i, g having spindles d mounted in ebonite cheek-plates a. The block g is urged by a spring k to maintain engagement between a wedge-member h thereon and a wedge-member such as a ball j mounted as a nut on a threaded part of the fine-adjustment spindle i. The cheekplates a are spaced by rods b, one of which is engaged by a forked downward extension of the ball j to prevent rotation of the ball. The block c is directly adjustable by a spindle e. The spindles d have reduced ends which are screwed into the contacts l, m. Contact is made to the spindle bushes f by screws n which also serve to attach the holder to a panel.
Patent GB-458400-A (GB)
Title: Improvements in the production of polychrome pictures from photographic silver halide emulsions
IPC: G03C7/32
Filed: 1935-04-13
Abstract: 458,400. Colour photography. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany) April 13, 1935, No. 11502. [Class 98 (ii)] In a process for producing by development coloured pictures in silver halide emulsion layers, a substance is present in the layer derived from a body capable of coupling with a developer oxidation product to produce a colour, by the introduction into the body of a group which imparts to it a substantive character with respect to the binding agent of the emulsion, so that it does not diffuse out of the layer. Compounds referred to as capable of coupling with a developer oxidation product are phenols, naphthols, aniline, naphthylamine, and aminonaphthols, and compounds containing reactive methylene groups such as acetoacetic esters, cyanoacetic esters, benzoylacetic esters, hydrindene, pyrazolones, and coumaranone. Groups specified for imparting a substantive character are the radicals of diphenyl, stilbene, azoxybenzene, oxynaphthoic acid amide, diarylureas, benzthiazole, certain phenols substituted in 3 : 5 position, and aminophenols. A multilayer film comprises the following layers arranged on one or both sides of the support ; p - - (oxynaphthoylamino) - 1 - phenyl - 3 - methyl-5-pyrazolone for red; terephthaloylbisacetic acid anilide for yellow; 3: 5-di- (phenylamino )-phenol for blue-green. The alkali salts of these compounds, dissolved in methanol, are stirred into 10 per cent. gelatine solution, and the mixture is mixed with silver halide emulsion. The developer comprises diethylaminoaniline hydrochloride and potassium carbonate, with or without sulphite. Specifications 15055/12 and 2562/13, [both in Class 98 (ii)], and 365,531, 403,915, 415,945, and 417,936, [all in Group IV], are referred to.
Patent GB-735231-A (GB)
Title: Lubricant additives comprising sulphurised terpenes
Inventor: TYSON JOHN TYSON
IPC: C10M159/12
Filed: 1952-05-07
Abstract: The invention comprises the product obtained by heating a sulphurized terpene or a mixture of sulphurized terpenes, formed by reacting a terpene or a mixture of terpenes and sulphur, with elemental phosphorus, e.g. red phosphorus.  The terpene may be a monocyclic terpene-preferably commercial dipentene-or a dicyclic terpene, e.g. alphapinene.  The sulphurized terpene may be prepared by heating the terpene with an amount ranging from 1.5 to 2 atoms of elemental sulphur per mol. of terpene, e.g. at a temperature of 135 DEG  to 200 DEG  C.  The sulphurization step is preferably carried out in the presence of a rubber vulcanization inhibitor, e.g. tetramethyl thiuram disulphide, a mercapto-benzthiazole or diphenyl guanidine. The sulphurized terpene product is preferably stripped of its more volatile portions by steam distillation either prior to or after heating with elemental phosphorus.  The amount of phorphorus used may vary between 1 and 10 per cent by weight based on the weight of sulphurized terpene.  A suitable temperature for reaction with the phosphorus is 110 DEG  to 200 DEG  C., preferably 125 DEG  to 175 DEG C., and the heating may be for a period from 1 to 8 hours particularly 2 to 5 hours.  The final product can be purified by dissolving it in a suitable volatile solvent, removing unreacted phosphorus by filtration and then recovering the product from the solvent, e.g. by vacuum distillation.  In the examples sulphurized dipentene is reacted with phosphorus.  Specification 688,293 is referred to.ALSO:A composition containing a lubricating oil and a minor proportion of the product obtained by heating a sulphurized terpene or a mixture of sulphurized terpenes formed by reacting a terpene or a mixture of terpenes and sulphur, with elemental phosphorus.  The amount of product used is preferably less than 5 per cent and particularly less than 1 per cent based on the weight of lubricating oil.  The terpene may be a monocyclic terpene-preferably commercial dipentene or a dicyclic terpene, e.g. alphapinene. Suitable lubricating oils are mineral oils or synthetic ester type oils, e.g. adipates or sebacates of alcohols in the C7 to C10 range or esters prepared from glycols or polyglycols, aliphatic dibasic acids and monohydric alcohols or monobasic acids as chain terminators.  In the examples compositions are prepared by adding the product obtained by heating sulphurized dipentene with phosphorus to a synthetic type of aviation lubricant and to mineral oil which may also contain the barium salt of p-iso-octyl phenol sulphide and calcium mahogany sulphonates.  Specification 688,293 is referred to.
Patent GB-1027949-A (GB)
Title: A process for the preparation of an n-alkyl-ª‡-pyrrolidone
IPC: C07D201/02
Filed: 1965-03-18
Abstract: An N-alkyl-a -pyrrolidone is prepared by the action of carbon monoxide, under a pressure of at least 100 atmos., with an N-alkyl allylamine, having an alkyl group with not more than 20 carbon atoms, in the presence of cobalt or a compound thereof as catalyst used in a quantity of from 0.060 to 0.265 gm. atoms of cobalt per mol of N-alkyl allylamine.  Suitable temperatures are from 220 DEG  to 290 DEG  C.  The cobalt catalyst may be in the form of the metal or a complex salt or soap, preferably dicobalt octacarbonyl in solution or suspension in a liquid medium, e.g. the N-alkyl-a -pyrrolidone itself, hydrocarbons, or oxygen compounds boiling above 230 DEG  C. such as sulfolane or ketones. The examples relate to the preparation of N-methyl, N-ethyl, N-isobutyl, N-octyl and N-lauryl pyrrolidones.
Patent GB-542665-A (GB)
Title: Improvements in and relating to bearings for vacuum or low pressure vessels
IPC: H01J35/10
Filed: 1940-07-12
Abstract: 542,665. Coating bearings. BRITISH THOMSON-HOUSTON CO., Ltd. July 12, 1040, No. 11602. Convention date, July 13, 1939. [Class 82 (ii)] The working surface of a bearing enclosed in an evacuated envelope so as to operate under vacuum or low pressure conditions has a coating consisting of a thin film of a metallic lubricatory medium adhering to it mechanically or by alloying and having a vapour pressure of the order of 10<SP>-9</SP> mm. of mercury at atmospheric pressure and not exceeding 10<SP>-e</SP> mm. of mercury at temperatures of the order of 200 C. The lubricating medium may comprise barium, caesium, strontium, calcium, chromium, silver, aluminium, iron or nickel or an alloy of barium and aluminium. As applied to the coating of the bearings 15 of the rotary cathode of an X-ray tube, the coating metal may be contained in a capsule &c. having an opening facing the bearings and heated by electric current or exposing it to the action of a fluctuating magnetic field. Alternatively the coating metal L, e.g. barium, is enclosed within a tungsten wire W having one wall cut away as at S and being supported in the space 87 on an extension 35 of the shaft 19 on which the cathode 13 is rotated. The coating metal L is vapourized by passing a current through the wire W. Specifications 520,592, 528,209, 538,289, [Group XXXIV], and 545,693 are referred to.
Patent GB-610766-A (GB)
Title: Improvements in and relating to rotary drills
IPC: B23B47/00
Filed: 1946-04-16
Abstract: 610,766. Rotary drills. WERF CONRAD EN STORK HIJSCH N.V. April 16, 1946, No. 11645. Convention date, Feb. 20, 1942. [Class 85] In a rotary drill the pressure on the drill can be controlled as desired by spring-operated adjusting means. The drill is turned by a grief stem 3 keyed to a mitred wheel 8 so as to slide axially of the wheel, which is mounted in bearings 9, 10 on a stationary casing 11. Secured to the wheel 8 is a gear-wheel 18 meshing with a stepped pinion 19 driving a loosely mounted wheel 20 at an angular velocity greater than the stem 3. The wheel 21 carries one friction plate 22 of a clutch unit, the other plate 23 being on a nut 13 mounted on the screwed portion of the stem 3. In operation, as the drill rod and grief stem descend they carry with them the nut 13 which rotates at the same speed as the stem until plates 22, 23 engage. The nut is then rotated at a speed in excess of the stem and rises up the stem so compressing the spring 14 to the required degree. The spring 14 is mounted between races 17, 17a and by advancing the hand-wheel 15 into the casing 11 the spring is compressed between the upper shoulder of the hub 16 of the handwheel and the lower shoulder of the stem so that a downward pressure is applied to the stem 3. An upward pressure can be applied to the stem by compressing the spring between the lower shoulder of the hub 16 and the upper shoulder of the stem. If the upper surface of the nut is jammed against the conical surface of the casing the stem is withdrawn upwards. In a modification, the spring is divided into two, the shoulders formed on the hand wheel being together and between the springs.
Patent GB-1033214-A (GB)
Title: Method of manufacturing an insulated electrical conductor and insulated conductor manufactured according to the method
IPC: H01B13/30
Filed: 1963-03-25
Abstract: A conductor is insulated by binding a self-supporting mica flake layer to a backing with a binder consisting of an isophthalic and/or terephthalic acid-based thermosetting alkyd resin material of such molecular weight when it is brought into contact with the mica flake layer that a 50% by weight solution of the alkyd resin in a mixture of 10 parts by weight toluene to 3 parts by weight n-butanol has a viscosity at 23 DEG  C. of at least 250 centipoise. The alkyd is made by reacting (1) isophthalic and/or terephthalic acid or their lower esters; (2) an aliphatic dicarboxylic acid, e.g. adipic, sebacic, azelaic or pimellic acid; (3) a polyhydric alcohol, e.g. glycerol pentaerythritol, trimethylolpropane, trimethylolethane, sorbitol or mannol; and (4) a dihydric alcohol, e.g. ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, triethylene glycol or dipropylene glycol.
Patent GB-937940-A (GB)
Title: Improvements in or relating to rotary drill bits
Inventor: PICKARD ALBERT FRANK
IPC: B24D7/18
Filed: 1962-03-27
Abstract: 937,940. Diamond tools; abrasive tools. WHEEL TRUEING TOOL CO. March 27, 1962, No. 11714/62. Classes 60 and 124. A rotary drill bit for drilling shallow holes in masonry and the like material comprises a flat annular abrading working face 20 having a bore 17 therethrough, an abrading annulus 21 protruding from the face and a second abrading annulus 23 less than one-half the outside diameter of the bit and protruding from the flat face a greater distance than the annulus 21. The abrading particles, such as diamonds, are set in the working face of a member 12 secured to a mounting member 11. Cutting fluid is fed through bores 15, 17 and across the working face via channels 26, 27, 28 and relieved areas 25.
Patent GB-494312-A (GB)
Title: A filtering device for beverages such as coffee and tea
IPC: A47J31/44
Filed: 1937-04-23
Abstract: 494,312. Filters. MELITTA-WERKE AKT.-GES., and BENTZ, H. W. April 23, 1937, No. 11721. [Class 46] A vessel, which, when provided with a paper bag lining, can be used for filtering tea or coffee, has an elongated bottom and ribs d on the side wall, the cross-section of the wall changing upwardly into an elliptical, circular or rectangular shape or having an undulated or corrugated form. Drainage openings in the base may comprise a longitudinal slot or two slots e, Fig. 2, on either side of a rib c. As shown in Fig. 8, the bottom is oval and the wall has inwardly projecting portions i. A vessel of rectangular cross-section is shown in Fig. 10. The paper bags used may be as described in Specification 451,197 or 494,316.
Patent GB-900393-A (GB)
Title: Couplings for co-axial cable
IPC: H01R9/05
Filed: 1959-04-07
Abstract: 900,393. Two-part couplings. CATOR, W. S. April 6, 1960 [April 7, 1959], No. 11724/59. Class 38 (1). A plug or socket coupling for coaxial cables includes an electrically conducting connecting part 18 either formed integrally with and at one end of the conducting sleeve 2, or as a separate part which can be fixed relatively to and in electrically conductive contact with the sleeve, the end of the connector remote from the sleeve being adapted to be pushed into the cable between the braided conductor 10 end the core insulating encasement 9, the coupling also including two clamping parts, one of which 20 surrounds the end of the cable, the other 23 being formed integrally with the sleeve or being a separate part which engages the sleeve or the connector 18, the two parts being interengageable or securable together to retain the coupling upon the cable. The connector is preferably cylindrical and has an annular external flange 19 which abuts the cable end, and which is engaged by the clamping part 23. The clamping part 20 is internally screw tapped for gripping the cable. For mounting in a panel P, the tube 22, integral with the part 23, is held in position by a nut 25 on the screwthreaded part of the tube beyond a flange 24.
Patent GB-1088542-A (GB)
Title: Improvements in and relating to the socketting of ropes, strands and the like
Inventor: CAMPBELL ROBERT EDWARD
IPC: C09J163/00
Filed: 1964-03-19
Abstract: Ropes, strands &c. are socketed using a cold-setting resin mixture incorporating a metal powder of good thermal conductivity and which will pass through a 200 mesh sieve.  Epoxy, polyester, and, acrylic resin, and aluminium powder forming 35-60% of the resin mixture may be used.ALSO:Ropes, strands &c. are socketed using a coldsetting resin mixture incorporating a metal powder of good thermal conductivity and which will pass through a 200 mesh sieve.  Epoxy, polyester, and, acrylic resins, and aluminium powder forming 35%-60% of the resin mixture may be used.
Patent GB-473994-A (GB)
Title: Improvements in warning systems of houses and like establishments
IPC: G08B7/06
Filed: 1936-04-25
Abstract: 473,994. Electric signalling systems. CIANCHI, A. April 25, 1936, No. 11850. Addition to 436,216. [Class 40 (i)] [Also in Group XXXIX] In a door bell, telephonecall or other signalling system of the type described in the parent Specification wherein use is made of the ordinary electric lighting system, the operation of the signalling system causes lights that are switched on to be extinguished or have their intensity varied and lights that are extinguished to be switched on. As shown the lamps 2 of the ordinary lighting system may be connected by switches 3 to one or other of auxiliary conductors 41, 411 which may be connected to the supply main 1 by a changeover-switch 5. In the arrangement shown the upper lamp 2 is extinguished and the lower lamp is illuminated, but upon operation of a push button 9 of a signalling circuit, magnet 8 is energized to operate the switch 5 and thereby illuminate the upper lamp 2 and to dim the normally illuminated lamp by the inclusion of a resistance 13 in its circuit. The switch 5 may be a time-switch of the mercury contact type described in Specification 453,229, [Group XXXVII], whereby the original condition of the lights may be restored automatically after a time interval. The system may also include a lamp which is normally under the control of two changeover switches, In this case, operation of the signalling circuit lights the lamp if it is normally extinguished, and dims it and then restores full illumination if the lamp is normally in operation.
Patent GB-745671-A (GB)
Title: Improvements in or relating to machines for cultivating the soil
Inventor: FILDES SIDNEY LEO
IPC: A01B19/06
Filed: 1953-05-01
Abstract: 745,671. Agricultural implements. MIDLAND INDUSTRIES, Ltd. Sept. 23, 1953 [May 1, 1953], No. 12052/53. Class 6 (1). In a reciprocating cultivator comprising one or more tine carrying bars 11, extending and reciprocating transversely of the direction of motion of the machine the tines are constructed as resilient metal members 18 which are secured to the bars 11 by clamping elements 23 and bolts 22. As shown applied to a machine as described in Specification 745,670, a reinforcing strip 16 is provided and is extended to form an auxiliary tine 20. Specification 745,670 is also referred to. Reference has been directed by the Comptroller to Specification 628,789.
Patent GB-825783-A (GB)
Title: Method and apparatus for treating hollow or tubular workpieces
IPC: B21D26/02
Filed: 1957-04-12
Abstract: 825,783. Making gun barrels, altering physical properties. BASSET, J. F. E. April 12, 1957 [April 27, 1956], No. 12078/57. Classes 83 (2) and 83 (4). A method of pressure treating tubular bodies, e.g. gun barrels, comprises passing an hydraulic pressure medium continuously through said body so as to maintain pressure therein which decreases along the length of the body from a very high value to a lower value, the value being sufficiently high at all points to produce a substantial change in viscosity of the medium. In an embodiment pre-stressing fluid is delivered to the tube T continuously from an hydraulic pump 16 the maximum delivery pressure being limited by an adjustable plug 18. The feed of the pump is adjusted by a speed change device 19 interposed between the motor 20 and the pump. The tube is filled with metal blocks 21 to 25 leaving peripheral gaps of predetermined size. The outlet cap 26 is provided with a flow control valve 27 ensuring an adjustable flow of pressure fluid regulated by a servomotor 28. Pressure gauges 29 and 30 show the pressure on the tube at the inlet and outlet. The pressure fluid comprises a mixture e.g. of two parts gas oil and one part petroleum such mixture becoming viscous at pressures above 3000 k.g. per sq. cm. so that when this mixture is passed at high pressure through a long tube of small diameter at a constant rate of flow considerable pressure differences, namely P1, P2 and P3, are produced and become stabilized along the tube. This pressure distribution is maintained by control means 31 comprising a piston 32 which receives the inlet pressure P1 and a piston 33 which receives the outlet pressure P3 (Fig. 3). These pistons are mechanically opposed by a pivoted beam 34 which is in equilibrium when the pressure ratio is equal to the ratio of the cross-sections of the pistons. If the pressure ratio changes the beam rocks and controls the servomotor by means of the electric contacts 36, 37 to open or close the relief valve 27. The pressure ratio is regulated by adjustable springs 38 and 39 acting on the pistons 32 and 33 respectively. Alternatively, instead - of the springs, the beam axis may be moved mechanically to vary the length of each arm. The beam may be replaced by a frame supporting two windings carrying currents regulated by electric pressure gauges. A wide range of variation of the pressure ratio may thus be obtained merely by adjusting the shunt resistors.
Patent GB-306330-A (GB)
Title: Improvements in or relating to indiarubber hot water bottles and like flexible receptacles for liquid
IPC: A61F7/08
Filed: 1928-04-25
Abstract: 306,330. Leyland & Birmingham Rubber Co., Ltd., and Lunn, R. W. April 25,1928. Hot-water bottles.-A moulded rubber hotwater bottle is provided with relatively thin front and back walls, A, B, and thicker edged walls C, and the inner surfaces of the walls A, B, have intersecting ribs A<1>, B<1>, which may be reinforced by threads or tapes of woven material. According to the Provisional Specification, the ribs may be on the outer surface.
Patent GB-1067221-A (GB)
Title: Apparatus for skulling or removing brickwork
IPC: C21B7/06
Filed: 1964-03-23
Abstract: 1,067,221. Percussive drills. L. A. GRANT. March 23. 1964, No. 12105/64. Heading B4C. [Also in Division F4] A pneumatic drill 19 for use on a platform for removing furnace linings, is mounted on a carrier 17 tilted about a pivot on a bracket 20 by an hydraulic cylinder 18. The bracket 20 is attached to the movable part 15 of a telescopic boom 11, guide rollers 26 and an hydraulic cylinder 21 controlling the movement of the part 15. The whole boom is tilted by an hydraulic cylinder 21, and a platform supporting the hydraulic reservoir 8, and the pump and operating motor 6 is rotatable through 360 degrees by gearing 12, 13. The whole assembly is mounted on a tracked or wheeled vehicle. -The drill carrier may be reversed about its pivotal connection to the bracket 20 to increase its range of vertical movement (Figs. 7 and 8, not shown).
Patent GB-1394644-A (GB)
Title: Penicillin esters
IPC: C07D499/42
Filed: 1973-03-13
Abstract: 1394644 6-Aminopenicillanic acid and organotin esters thereof A P DA LUZ 13 March 1973 [16 May 1972] 12132/73 Headings C2C and C2J A process for preparing 6-aminopenicillanic acid or an organo-tin ester thereof comprises treating a penicillin ester of Formula I wherein R<SP>1</SP> is an aliphatic or aromatic radical; and R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> may be the same or different, and each is an aliphatic or aromatic radical, with an imine-forming reagent to form an iminoderivative thereof, cleaving the imino-linkage in the imino-derivative to give an ester of formula and, if desired, hydrolysing the ester. The ester of Formula I is prepared by reacting a penicillin of the formula or a salt thereof with a compound of formula