baber/WOPTO huggingface dataset:
Patent GB-1355601-A (GB)
Title: Fire extinguishing composition
IPC: A62D1/02
Filed: 1972-07-26
Abstract: 1355601 Fire extinguishing composition FARBWERKE HOECHST AG 26 July 1972 [28 July 1971] 34961/72 Heading A5A A fire extinguishing composition contains a surface-active fluorine compound such as perfluoroalkyl sulphonate and a solvent selected from n-butanol, iso-butanol, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, and glycolic acid butyl ester. The fire extinguishing composition may be of the protein foam type and the synthetic type. Sugar solution may be added to the composition to enhance the lasting effect of the fire extinction, and ethylene glycol antifreeze may be included.
Patent GB-1005524-A (GB)
Title: Coating for steam iron flash boiler
IPC: B22D19/00
Filed: 1964-08-26
Abstract: An Al or Al alloy casting is coated at least in part by applying the coating material to the appropriate part of a heated die and then forming the coating therein, whereby the coating material is transferred to the casting.  The coating material is preferably sprayed on to the die and as applied to the flash boiler of a steam iron comprises a water suspension of mica flakes and alumina.
Patent GB-647747-A (GB)
Title: Improvements in or relating to ladders
IPC: E04F11/06
Filed: 1947-12-31
Abstract: 647,747. Ladders. HANDELSAKTIEBOLAGET, K. OLSSON, and UHLIN, A. H. Dec. 31, 1947, No. 35011. Convention date, March 9, 1946. [Class 20(ii)] An extensible ladder comprises ladder sections of the same size, the upper one being secured to a hinged hatch 4 by supports 6, 7 and each section comprising two side pieces 8a, 8b, 8c-joined by three steps 9a, 9b, 9c-at their middle and end portions so that each section is divided into an upper and a lower portion. To each of the lower ends of the side pieces of each section except the two located next to the hatch 4 is secured a sleeve 11a, 11b, 11cdirected towards the hatch, the lower portion of the adjacent side piece of the adjacent section nearer the hatch being slidably arranged in the sleeve and to each of the upper ends of the side pieces except the two located the farthest from the hatch there is secured a sleeve 10a, 10b, 10cdirected away from the hatch, the upper portion of the adjacent side piece of the adjacent section remote from the hatch being slidably arranged in this sleeve, so that each ladder section can be withdrawn half its length outside the adjacent section remote from the hatch. When the sections are extended the sleeves 10a, 10b, 10cwill abut against the upper sides of the middle steps and the sleeves 11a, 11b, 11c-will occupy positions adjacent the lower sides of the middle steps. The side pieces comprise metal tubes flattened at the end portions.
Patent GB-1088227-A (GB)
Title: Lubricants having a high viscosity index
IPC: C10M143/14
Filed: 1965-08-16
Abstract: Lubricants having a high viscosity index comprise a hydrocarbon lubricating oil (mineral or synthetic) and 0.1-3 weight per cent of a butadiene polymer having a number average molecular weight of 75,000-300,000 and having at least 90% 1,4-configuration, preferably predominantly cis-1,4-configuration.  Other V.I. improvers may also be present, e.g. polyisobutylene, vinyl acetate/maleic anhydride/alkyl fumarate copolymers, alkyl methacrylate polymers, and alkyl methacrylate/ alkyl fumarate copolymers.  Exemplifed composition also contain an overbased calcium petroleum sulphonate, and the reaction product of polyisobutenyl succinic anhydride with tetraethylene pentamine and acetic acid.
Patent GB-1491928-A (GB)
Title: High power argon/nitrogen transfer laser
IPC: H01S3/223
Filed: 1975-08-27
Abstract: 1491928 Lasers NORTHROP CORP 27 Aug 1975 [5 Sept 1974] 35361/75 Heading H1C An electron-beam-pumped gas laser produces an output at 3577  from a gas mixture having a total absolute pressure of between 20 to 260 p.s.i.a. and comprising 4 to 16% nitrogen and 96 to 84% argon. Radiation at 3577  is produced by transition between the C and B energy levels of N 2 , the nitrogen being pumped into an inverted population state by electronic excitation energy transfer from the electronbeam-excited argon. The gas mixture is contained in a cell 1 having end windows 3, 5 of magnesium fluoride and backed by a reflector 7, the end windows being approximately 5% reflective and forming a resonator. The laser output LOB may be monitored by a photodiode 11, a beam splitting mirror 9 or a diffuse scattering MgO surface. The laser may be used as a pumping source for a dye laser and have a preferred composition of 8% N 3 /92% Ar at a pressure of about 100 p.s.i.a.
Patent GB-1515356-A (GB)
Title: Electric switch
IPC: H01H61/013
Filed: 1976-08-02
Abstract: 1515356 Thermal switches EMI Ltd 2 Aug 1976 [28 Aug 1975 25 Oct 1975] 35478/75 and 43991/75 Heading H1N In an electrical switch having an electrical resistive heater 20 fastened to a bimetal member 10 which is flexible by the heater 20 to effect operation of the switch, an electrical connection to the heater 20 comprises a contact 35 resiliently urged against the heater 20. In one embodiment, the heater contact 35 is connected to a lead 36 and is mounted on a mica spring leaf 34 which urges it against the heater 20 formed by a resistor film 22 on an alumina substrate 21. Alternatively, the contact 35 is housed in an insulating bush (37, 371) (Figs. 2 and 3, not shown) on the end of a metal leaf spring (341). In another embodiment, the contact 35 is pressed against the heater 20 by a coil spring (38, 381) (Figs. 4 and 5, not shown) housed in an insulating bush(372) carried on the end of a rigid member (342). The heater 20 is attached by a rivet 23 to the bimetal blade 10 which is connected via an adjuster 14 to an overcentre spring 13 carrying a switch contact 12 co-operable with a contact 11 on a terminal 19. The spring 13 is connected to a terminal 15 by a rivet 16. The heater 20 is prevented-from turning too far about the rivet 23 by a plate 25 or by an upstanding portion of the metal leaf spring (341) or the rigid member (342).
Patent GB-804252-A (GB)
Title: Lubricant
Inventor: BLOWERS FREDERICK FRANK
Filed: 1955-12-12
Abstract: A composition for coating the timbers of launching-ways comprises, by weight, 25 to 85 per cent of paraffin wax, 5 to 25 per cent of wood rosin, 5 to 25 per cent of petroleum jelly and 5 to 25 per cent microcrystalline wax.  The paraffin waxes are paraffinic hydrocarbons such as those derived from the refining of waxy petroleum oils, they have a relatively low melting point range, usually 120-145 DEG  F., and a well-defined crystalline structure.  The microcrystalline waxes are hard hydrocarbon waxes having similar empirical formulae to the paraffin waxes but a substantially higher melting point range, 145-200 DEG  F., and an exceedingly small crystal structure. Petroleum jellies include the unctuous residues of paraffinic oils and the product of centrifugally dewaxing bright stocks or vacuum distillates and are believed to be mixtures of hydrocarbon waxes and viscous mineral oil, they are semi-solid at normal temperature and have a melting-point range of 95-105 DEG  F.  The wood rosins are obtained by refining the crude exudations of coniferous trees and comprise rosin acids, such as abietic, or their esters.  An example comprises 50 per cent paraffin wax (M.P. 135/140  DEG  F.); 20 per cent microcrystalline wax (M.P. 150/160  DEG  F.); 20 per cent petroleum jelly; and 10 per cent wood rosin.
Patent GB-417746-A (GB)
Title: Improved method and means for forming packages
IPC: B65B61/02
Filed: 1933-12-18
Abstract: 417,746. Making paper packages. AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD, 20, Alstr÷mergatan, Stockholm. Dec. 18, 1933, No. 35587. Convention date, Dec. 19, 1932. [Class 94 (ii).] The tubular body of an open-ended package preferably for granular, pulverulent or plastic substances is pressed between creasing members which support the walls to maintain their regular unfolded shape on simultaneously creasing all of them whilst or after the material is supplied. A tubular body 1, preferably closed at one end is carried on an automatic conveyer 2, under a feeding mechanism 3 (not shown), where it is partly filled, and then on to a pusher plate 4, which elevates it to surround a block shaped mandrel 5. Dies 6, 7, now approach the mandrel 5, and knives or grooves 14, 15, 16 on them, co-operate with grooves or knives 10, 11, 8, to produce creases L, M, N, on the body. Gear wheels 30, drive spindles 29, and thus produce oscillation of the dies through eccentric pins 28 acting on members 27 which slide in transverse slots 26 in slides 25. Adjustment of the dies is made by set screws 21 and 23, and adjustment of bar 50 by set screws 47, and adjusting-screw 24. A channel 65 serves to supply filling material and an air outlet 17 is provided. The pusher plate 4 is oscillated through a lever 38 from a shaft 45, being raised by a spring 49 and lowered by a cam 44 driven by the mainshaft 34 and acting through links 39, 40. Its extreme upper position is determined by a screw stop 46, or an electromagnetic brake 58, 59 actuated by the surface of the contents of the package closing contacts 53, 55, and it is adapted to yield to stresses opposing its movement towards the creasing members. The mandrel may be replaced by a casing having internal grooves or knives and either may be adapted to move periodically towards the bag, ready for the pressing operation. The knives, or those parts which contain them, or the grooves, may be removable.
Patent GB-777373-A (GB)
Title: Method and apparatus for making crochet curtain materials and similar crocheted goods with a net-like basic pattern
IPC: D04B33/00
Filed: 1954-12-09
Abstract: 777,373. Crochet work. BERGISCHE GARDINEN INDUSTRIE GES., and DIT. TRICH, R. Dec. 9, 1954 [Dec. 17, 1953], No. 35653/54. Class 74 (1). Warp threads 2 are fed by guides 4 to reciprocating crochet needles 7 and, by them, formed into warp chains which are held together by weft-threads 1 fed by guides 3 on bars 10 reciprocated, under pattern control, transversely over the needle bed, the weft threads being carried down between the needles 7, to be bound in by them, by finger-like sinkers 6 carried on a bar 5 oscillated axially and also given a translational to and fro movement, indicated by the arrow C, parallel to or inclined to the plane of reciprocation of the needles. The lower wires of the guides 3 are preferably situated on the surface of an imaginary cylinder, the axis of which is a line joining the heads of the needles 7 at their closest approach to the guides 4.
Patent GB-1398637-A (GB)
Title: Temperature-dependent switches
IPC: H01H37/70
Filed: 1972-07-31
Abstract: 1398637 Thermal switches EATON CORP 31 July 1972 [27 Aug 1971] 35702/72 Heading H1N A thermal switch comprises a bimetal 1 moving through pin 14 as movable contact 8, and an electromagnet 3 arranged to act on bimetal 1 or pin 14 to vary the switching temperature by varying the current through electromagnet 3. An armature or polepiece 15 of magnetic material may be provided. In a second embodiment, Fig. 2, bimetal 2 is a bowed disc, which may or may not be snap-acting, and electromagnetic 3 acts on pin 14 through armature 9 fastened to pin 14. A third embodiment, Fig. 3, is similar to Fig. 2, but with the electromagnet 3 above disc 2 and operating on disc 2. In a fourth embodiment, Fig. 4, electromagnet 3 holds a hinged armature 12 against pin 14 actuated by bimetal 1. The electromagnet may be used to restore the bi-metals to their original positions. Circuits are given, Figs. 5-8 (not shown) for supplying and switching the electromagnets and may include variable resistors for varying the currents through the electromagnets for varying the switching temperature.
Patent GB-805120-A (GB)
Title: Improvements in hardening gelatin
IPC: C09H7/00
Filed: 1957-11-18
Abstract: An aqueous gelatin composition is hardened by incorporating therein 2,3-dihydroxy, 1,4-dioxane which may be present in amount from 0.2 to 5 per cent by weight based on the dry weight of the gelatin.  The aqueous gelatin composition may be a light-sensitive gelatin silver halide emulsion which may contain colour couplers, sensitizers as described in Specifications 235,211, [Class 98 (ii)], 602,158, 602,160, 618,061, 636,140, 658,592, 661,645, 663,019, 664,230, 680,593, [all in Group XX], and 682,355 and U.S.A. Specification 2,410,689, stabilizers as described in Specifications 522,997, [Group XX], 742,219, [742,221, 742,224 and 748,750, [all in Group XX]] and may contain speed increasing agents as described in Specifications 557,178, 558,710, 560,082 and 768,438, [all in Group XX].
Patent GB-1269133-A (GB)
Title: Lens systems
Inventor: DAY DAVID JOHN
IPC: G02B13/18
Filed: 1969-07-16
Abstract: 1,269,133. Lens systems. RANK ORGANISATION Ltd. July 14, 1970 [July 16, 1969], No. 35797/69. Heading G2J. An optical objective comprises a "Cooke triplet formation" I, II, III and a divergent component IV axially spaced behind the rear surface of the triplet by 0‹25-0‹75F where F is the equivalent focal length of the complete objective, all the components being made of light-transmitting synthetic resins, and the triplet including an aspheric surface. The term "Cooke triplet formation" refers to a substantially anastigmatic Cooke triplet which is in itself fully corrected apart from a large Petzval sum, or to an assembly of three components having the appearance of a Cooke triplet, but which in itself is not substantially anastigmatic, the presence of the divergent component being necessary for reduction in the Petzval sum and also for completing correction of other aberations. The aspheric surface is preferably the front surface of the third component. When the divergent component is spaced at least 0À2F from the image plane, the triplet is modified so that the four components are corrected in conjunction. When the divergent component is less than 0À2F from the image plane, the triplet is selfcorrecting. The two outer components of the triplet and the divergent component may be of polymethyl methacrylate, and the centre component of the triplet of polystyrene. Optical data are given for three examples. The objective preferably has an external stop in front of the Cooke triplet, and two such objectives may be arranged to share a common diaphragm to form a copying or relay lens.
Patent GB-423761-A (GB)
Title: Improvements in and relating to step lens for street lighting and other purposes
IPC: F21V5/00
Filed: 1934-09-18
Abstract: 423,761. Lenses. HOLOPHANE, Ltd., and ENGLISH, S., Holophane House, Elverton Street, Vincent Square, London. Sept. 18, 1934, No. 35872/33. [Class 75 (ii)] A lens plate for use in the lighting of streets, shopwindows, &c., carries on either side a quadrant series of concentric prisms 1 which are bridged by a series of parallel prisms 2 merging tangentially into them and a continuous series of parallel prisms 3 perpendicular to the first series of parallel prisms and merging tangentially at either side of the plate into the concentric prisms 1. The lower portions of the prisms 3 are run out, either uniformly or increasingly towards the centre of the plate. Two or more such plates may be used in street lamps.
Patent GB-467518-A (GB)
Title: Ship form
IPC: B63B1/06
Filed: 1935-12-28
Abstract: 467,518. Ships' form. KOSTANJEVIC, G. Dec. 28, 1935, No. 35903. [Class 113 (ii)] In the fore part of the ship the frame lines. of the hull are approximately parallel to one another and the transverse sections are approximately triangular with an obliquely rising stern. Thus above water form is combined with an underwater form comprising : (a) a bulbous stern in the neighbourhood of the keel, (b) a form in which the sections are determined by radii from a point below the keel,line, (c) U- shaped normal form. The above and below water lines are faired together in the neighbourhood of the main water line. The Figure shows the third form, the dotted frame lines indicating the normal form and the full line the form according to the invention.
Patent GB-844863-A (GB)
Title: Air conditioning system for aircraft
IPC: B64D13/08
Filed: 1956-11-26
Abstract: 844,863. Aircraft air conditioning. UNITED AIRCRAFT CORPORATION. Nov. 26, 1956 [Nov. 30, 1955], No. 36068/56. Class 137 An air-conditioning system for an aircraft provides temperature and pressure controlled air to the cabin, suitable air for flying suits, G suits and equipment spaces as well as to de-fogging and rain removal nozzles. The system is controlled by air servos operated from a regulated pressure main 94 supplied by compressed air at 16 via a pressure regulator 18. This main also supplies the G suit and any instruments that require a constant pressure of air. Ram air from 10 is utilised to cool compartments A and B, the former having both temperature and pressure, the latter temperature, controlled. A temperature sensitive valve 34 is controlled by a sensing element 54 in the main ram inlet so that if the ram air is too hot to act as a coolant only cold air from a main 48 is fed to the compartments by a pipe 24. Compressed air introduced at 14 flows through the pilots control valve 106 to a heat-exchanger 38 where it is cooled by ram air introduced at 12 and expelled at 42 by a fan 40, driven by a turbine powered by the compressed air which is thus further cooled. To avoid this fan overspeeding if the ram air flow is restricted, a controlled inlet 50 is provided. Conduit 144 carries hot compressed air from the heat exchanger, 146 carries relatively hot air and 148, 150 and 46 carry cold air, the latter supplying driving air to fan turbine 44 where it is - cooled and passes to the cold air main 48. Conduit 150 pressurises the fuel tanks &c. and conduit 148 supplies a rain removal device under the pilot's control. The hot air from conduit 144 is fed into the mixed air mains 152 together with cold air from mains 48. A temperature sensitive element 194 in the mixed air conduit, pre-set by the pilot, controls a proportional solenoid 182 varying bleed air from a nozzle on pipe 208 which thus controls valve 156 as disclosed in Specification 820,316. The pressure in mixed air main 152 is controlled by a regulator 162. Air is supplied to the cabin space by pipe 158 and to the de-fogging device by a pipe 160, warm air being added to the latter from a pipe 146 under control of a heat-sensitive element 286 which operates a servo 284 as disclosed in Specification 812,742. The pilots' flying suit is supplied by pipe 218 from a point upstream of a valve 212, the latter being controlled by servo 216 which maintains a constant pressure differential across the valve.
Patent GB-823429-A (GB)
Title: Improvements in or relating to control systems for nuclear power plants
Inventor: ANDERSON ERIC
IPC: G21D3/10
Filed: 1956-11-27
Abstract: 823,429. Nuclear reactors. PAROLLE ELECTRICAL PLANT CO. Ltd. Nov. 1, 1957 [Nov. 27, 1956], No. 36261/56. Drawings to Specification. Class 39(4). In a nuclear power turbine generator plant, the reactor coolant flow and the positioning of the control rods are automatically controlled. Cooling fluid is circulated through the reactor and a heat exchanger where the turbine working fluid is heated. The reactor control rods are positioned in accordance with the temperature of the nuclear fuel by means of thermocouples associated with the fuel cans or alternatively the control may be exercised in accordance with the outlet temperature of the reactor coolant, before entry to the heat exchanger. The coolant pumps are controlled in response to pressure charges in the turbine working fluid at the turbine inlet or in response to the generator output.
Patent GB-1158830-A (GB)
Title: Production of Titanium Dioxide Nuclei
Inventor: TWIST WALTER
IPC: C01G23/053
Filed: 1967-08-08
Abstract: 1,158,830. TiO 2  nuclei. BRITISH TITAN PRODUCTS CO. Ltd. 10 July, 1968 [8 Aug., 1967], No. 36288/67. Heading C1N. Nuclei for Ti sulphate hydrolysis are prepared by freezing and remelting an aqueous suspension or cake of TiO 2  nuclei and separating the solid nuclei from the liquid. The cooling rate is at least 4‹ C. per min., at least from 1‹ C. above to 4‹ C. below the f.pt., e.g. 20- 30‹ C. per min., and freezing may be instantaneous. The suspension may contain 10% by wt. or less TiO 2 , and may be cooled by dropping it into liquid N 2 , O 2  or air, or solid CO 2 , or by spraying it on to a surface cooled by liquid N 2  or air. It may be allowed to melt, or heated at below 100‹ C., and then separated by filter or centrifuge. The suspension may be reconstituted by mixing the nuclei with water or HCI in a ball mill, and added to a solution of Ti sulphate obtained by digesting Ti slag or ilmenite in H 2 SO 4 . The TiO 2  obtained on hydrolysis may be calcined at 860‹ or 885‹ C. after addition of K 2 SO 4 , ZnSO 4,  and ammonium phosphate. The initial nuclei may be anatose or rutile inducing and may be obtained by thermal hydrolysis of aqueous TiCl 4  after partial neutralization with NaOH.
Patent GB-1166807-A (GB)
Title: Method of Producing Finely-Divided Powders of Metals and Alloys
Inventor: SAKHIEV ALEXANDR SERGEEVICH
IPC: C07F5/06
Filed: 1968-07-30
Abstract: 1,166,807. Acyloxy silane primers. STAUFFER CHEMICAL CO. 10 Nov., 1966 [8 Dec., 1965], No. 50344/66. Heading C4A. [Also in Divisions B2 and C3] Primer compositions for coating surfaces with silicone rubbers comprise compounds of the general formula (RO) n Si(OOCR<SP>1</SP>) 4-n  wherein R is an aliphatic radical of 1 to 6 carbon atoms or a phenyl radical, R<SP>1</SP> is an aliphatic radical of 1 to 3 carbon atoms and n is 1 or 2 dissolved in an organic solvent, e.g. methylene chloride or toluene in 2 to 20% amounts by volume. Preferred compounds are diisopropoxydiacetoxysilane, diphenoxydiacetoxysilane, diethoxydiacetoxysilane, di - n - propoxydiacetoxysilane and diamyloxydiacetoxysilane. The solutions may be applied by e.g. brushing, dipping or spraying.
Patent GB-367069-A (GB)
Title: Improvements relating to the packing of fragile articles
IPC: B65D5/50
Filed: 1930-12-02
Abstract: 367,069. Boxes &c. for electric lamps &c. EDISON SWAN ELECTRIC CO., Ltd., 123, Queen Victoria Street, London, and BIRD, C. H., 31, Elmore Road, Enfield Highway, Middlesex. Dec. 2, 1930, No. 36328. [Class 18.] A carton or box for electric lamps, eggs, &c. is fitted with a holder made from a rectangular sheet 1 of stiff paper &c. folded along the middle and slit at 2, 3 to form one or more straps 4 which may be of varying length for holding the article and at 3 to form stops 5 which may also be of varying length for preventing endwise movement. The edges of the channel may be provided with projections for spacing it from the carton or box or may be bent downwardly to form a holder of M-section. In a modified form a single sheet may be folded at 12, Fig. 5, and secured at 11 to form two channels 13, stops 5 being provided as before. This holder may also be made from two sheets secured at 11, 12. The straps or stops may be made separately and secured by adhesive &c.