baber/WOPTO huggingface dataset:
Patent GB-569784-A (GB)
Title: Improvements in or relating to the manufacture of clad metals
IPC: B23K35/30
Filed: 1943-08-13
Abstract: 569,784. Making cased tubes, sheets, &c. COOK, M., PARKER, G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 13, 1943, No. 13143. [Classes 83 (ii) and 83 (iv)] Soldering. In making clad metals comprising a base layer of copper or copper base alloy having a ductility at elevated temperatures comparable with that of copper and a cladding layer or layers of an alloy of copper and silver, a thin foil or adherent layer of phosphorcopper containing up to 4 per cent of phosphorus is sandwiched between the cladding alloy and the base metal, the assembled parts are heated in substantial absence of air or other oxidising atmosphere to a temperature between 645 and 780‹ C. to promote the formation in situ of a bonding medium of an alloy of copper, silver, and phosphorus and are then submitted to pressure in a press in the substantial absence of air &c. to consolidate the bond between the parts. The composite body may be in sheet, strip or tube form for use in making heat exchangers as described in Specification 569,779. The copper alloy which may form the base metal may contain 0.05 per cent of silver. The phosphor-copper when in foil form may have 2 per cent of phosphorus, and when applied by spraying may contain 2 per cent, or preferably up to 4 per cent, of phosphorus. Air may be excluded by packet ing the parts in sheet copper prior to heating and pressing, a wash of refractory material or a layer of asbestos paper being interposed between the packet and the parts to be joined. In one form a billet comprising a thick layer of copper and a thin layer on each side of an alloy of 72 per cent silver and 28 per cent copper for producing a composite sheet is made by spraying the pre-roughened surface of the copper with 0.005 to 0.01 inch of phosphor-copper from a wire by a metal-spraying apparatus, then planishing by single pass between rolls, then assembling with the layers of coppersilver alloy, packeting, heating the packet to 750‹ C. for half an hour, preferably in a press under light pressure such as is produced by allowing the weight of the upper platen of the press to rest on the packet and then pressing between the heated platens at a pressure of 2,000 lb. per sq. in. After pressing the packeting is removed and the billet reduced by cold rolling with a 50 per cent reduction in the first stages and with intermediate annealing at 600-650‹ C., preferably quenching in pickling solutions after annealing.
Patent GB-1384022-A (GB)
Title: Hexamethylene-imine derivatives and their preparation
IPC: C07D295/12
Filed: 1973-03-19
Abstract: 1384022 Hexamethyleneimines INNOTHERA 19 March 1973 [30 March 1972] 13161/73 Heading C2C  Novel hexamethyleneimines of the general formula  wherein R is a hydrogen atom or methyl or ethyl group, n is 0, 1, 2 or 3 and A is  or R 1 R 2 CHCONH-, in which each of R 1  and R 2  is a straight or branched chain saturated C 1-6  aliphatic, allyl, cyclopentyl, cyclohexyl, cyclohexenyl, benzyl, halobenzyl, phenyl, halophenyl, methylphenyl, ethylphenyl, heterocyclyl or heterocyclylmethyl group, provided that when A is R 1 R 2 CHCOO- and one of R 1  and R 2  is a 3-thienyl group, the other is not a cyclopentyl, cyclohexyl, phenyl, halophenyl, methylphenyl or ethylphenyl group, including racemates and optical isomers, and quaternary ammonium pharmaceutically acceptable acid addition salts and derivatives thereof are prepared by condensing an acid of the general formula R 1 R 2 CHCOOH or a reactive functional derivative thereof with a hexamethyleneimine of the general formula  wherein B is a halogen atom or hydroxyl or amino group. Acids of the second general formula above are prepared (a) by condensing mandelic acid, which may be substituted, with an appropriate benzene derivative in the presence of stannic chloride, (b) by condensing (by a malonic synthesis), optionally substituted ethyl phenylmalonate with benzyl chloride, which may be substituted, 2-chloromethylfuran or 2- or 3- chloromethyl-thiophene, followed by saponification and decarboxylation of the resulting malonic acid ester and (c) by reducing a glycollic acid of the general formula R 1 R 2 C(OH)COOH, obtained by condensing an appropriate glyoxylic acid with a Grignard reagent. Pharmaceutical compositions having spasmolytic and vasodilating activity comprise, as active ingredient, a hexamethyleneimine of the first general formula above or a pharmaceutically acceptable acid addition salt or quartenary ammonium derivative thereof, in association with a pharmaceutically acceptable carrier.
Patent GB-1419625-A (GB)
Title: Thermal-break frame assembly for windows
IPC: E06B3/263
Filed: 1972-03-21
Abstract: 1419625 Insulated window frames J H BIERLICH 21 March 1973 [21 March 1972] 13226/72 Heading E1J A thermally insulated window frame F comprises two resilient metallic channel sections 3 having inwardly facing abutments 4 at the free ends of the channel walls, the open channel sections facing each other and being interconnected by a rigid block 5 of thermally insulating material which is a snapfit engagement with the abutments 4. The frame may be formed by feeding the members between a press to spring the metal channels over the block 5. The block may have a projection 14 forming a weather seal with a similar projection on a second frame S pivoted to the frame F. The corners of the frame may be interconnected by tabs 84 engaging grooves in L shaped inserts 80.
Patent GB-1517792-A (GB)
Title: Timing belts drive transmission
IPC: F16H7/08
Filed: 1976-03-31
Abstract: 1517792 Belt gearing; clutch control ERNEST SCRAGG & SONS Ltd 31 March 1976 [1 April 1975] 13250/75 Headings F2Q and F2L A belt transmission mechanism includes an endless toothed belt 15 in permanent mesh with driven toothed wheels 16, 17, 18, 19 and 20, mounted on a movable support plate 13, and is provided with means for bringing the belt 15 into engagement with a continuously rotating driving toothed wheel 11 on a shaft 10 of fixed axis, wherein the shaft 10 also carries a driving plain wheel 12 and one of the toothed driven wheels is provided with a friction wheel 25 coaxially secured to it in alignment with the plain wheel 12, such that a movement of the support plate 13 about a pivot 14 towards shaft 10 initially causes the friction wheel 25 to engage the surface of the plain wheel 12, thereby running the belt up to speed before the belt teeth engage the toothed driving wheel 11, with means also provided for disengaging the friction wheel from the plain wheel subsequently. In the embodiment shown, wheels 16 and 25 are carried by a pivoted arm 21, biased by a spring 23, and the end of arm 21 strikes a cam surface 26 to pivot wheel 25 out of engagement with the plain wheel 12. Wheel 17 is also carried by an arm 22 which is biased by a spring 24 and acts as a belt tensioning member. Means may also be provided for causing the support to dwell for a period at the stage of frictional engagement, or for causing the support to spring back to a disengaged position if the manual engagement mechanism has not become latched fully home. The assembly may be incorporated in textile processing machines.
Patent GB-344711-A (GB)
Title: Improved means for supporting colliery roofs
IPC: E21D17/01
Filed: 1930-04-30
Abstract: 344,711. Shoring. DICKINSON, C., Greenfields, Linton, near Burton-on-Trent. April 30, 1930, No. 13255. [Class 20 (ii).] A cross-member to bear upon the heads of props in mine shoring is formed of channelsection with inclined sides a<1> which bear upon the wooden heads c of the props and compress them. The base of the section iron may be provided with a recess b.
Patent GB-402800-A (GB)
Title: Improvements in or relating to protective arrangements for parallel connected alternating current feeders or other apparatus
IPC: H02H7/26
Filed: 1932-05-09
Abstract: 402,800. Protective cut-out systems. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WILSON, W., c/o General Electric Co., Witton, Birmingham. May 9, 1932, No. 13337. [Class 38 (v).] Parallel-connected apparatus, such as feeders, is protected against interphase or earth faults by means of current transformers 4, 5, 6 in the respective phases connected as shown and having their outputs unbalanced so as to circulate current, and a central-zero relay 9 having a current coil 11 energized by the difference current, a voltage coil 10, and a biassing coil 12. The transformer groups are similar, those 5, 6 being equal and having half the output of transformers 4. The relay 9 is preferably of the induction type for example, as disclosed in Figs. 3, 4 of Specification 319,292, [Class 38 (v), Electric switches &c.], and winding 12 biasses the movable contact in its central position by means of an armature, which may be either mounted on a radial arm or constituted by a core operating through a pivoted lever and spring on a radial arm. No operation occurs with through faults, but with a fault on a feeder, the balance of the far-end equipment is upset and the far-end breaker opened ; the sound feeder no longer carries the fault current and so the near-end equipment becomes unbalanced and the nearend breaker is opened. In Fig. 2, the windings of transformers 4 have extensions to make them of equal ratio to transformers 5, 6. When any breaker opens on fault, auxiliary contacts on the breaker open the connections 19, 20, 21 and establish those 14, 15, 18 including fuses 16, 17, and also interconnect the fixed contacts of relay 9 and, if desired, insert a sensitivityreducing resistance 22. With an earth fault on the single feeder, the coil 11 is energized, whereas on over load due to an interphase fault, one or more fuses blow and upset the balance of the transformer group to operate the relay. Overload fuses 13 may also be provided and the invention is applicable to more than two parallel-connected devices.
Patent GB-816189-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: GOODALL EDWIN GEORGE ALEXANDER
IPC: H01Q21/26
Filed: 1957-04-26
Abstract: 816,189. Aerials. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Jan. 24, 1958 [April 26, 1957], No. 13358/57. Class 40 (7). The invention relates to aerial system capable of handling circularly polarized energy and having a hemispherical polar diagram. According to the invention such an aerial system comprises a first circularly polarized aerial arrangement having a circular polar diagram in one plane and negligible radiation in a direction at right angles to it, a second circularly polarized aerial arrangement having a polar diagram with a maximum in said direction, and means for feeding the two aerial arrangements in phase. In an embodiment the first aerial arrangement consists of four dipoles, 1, 2, 3 and 4. Dipoles 1 and 3 lie in spaced parallel planes and dipoles 2 and 4 in spaced parallel planes at right angles thereto. All four dipoles have their centres on a circle (which is horizontal when the aerial is in use) and make the same angle, which may be about 30 degrees to the plane of the circle. They are supported centrally by arms 6 and 7 such that the spacing between the dipoles is a third of the working wavelength (#). The halfwave dipoles are each connected (by two conductors in known manner) to the feed point 8. The second aerial arrangement is a helical aerial 5 with its axis vertical and passing through the central feed point. It is preferred to use a helix of 3¢ turns with a pitch of 0.22 #, diameter of 0.32 A, and having its lowest turn commencing #/9 above the point 8. The two aerial arrangements must be connected in an " in-phase " condition to the feeder which is shown as a coaxial feeder 9 leading from the feed point 8. It is explained with reference to Fig. 2 (not shown) that the lobe of the helical aerial diagram fills in the gap in diagram of the dipole arrangement to provide substantially constant power in all directions above the horizontal.
Patent GB-1452374-A (GB)
Title: Disinfectant compositions
IPC: C11D1/00
Filed: 1974-03-26
Abstract: 1452374 Disinfectant composition R H CONN 26 March 1974 13389/74 Heading A5E A disinfectant composition comprises from 99-99.9% by wt of inert ingredients and 0.1-1% by wt of an active ingredient consisting of from 25-50% by wt of a chelating agent and from 50-75% by wt of a mixture of at least two different n-alkyl benzalkonium halides each corresponding to the formula: wherein R is hydrogen or lower alkyl having 1 or 2 carbon atoms, R 1  is lower alkyl having from 1-4 carbon atoms, R 2  and R 3  are each lower alkyl having 1 or 2 carbon atoms, R 4  is n-alkyl having from 8-18 carbon atoms or mixtures thereof and X is halogen. The chelating agent is preferably either ethylenediaminetetraacetic acid or the alkali metal salts thereof, other useful chelating agents include the sugar acids or alkali metal salts thereof. In preparing the composition the active ingredient is mixed with inert ingredients, such as surfactants (e.g. amphoteric and anionic), emolluents (e.g. glycerine) and corrosion inhibitors in water solution.
Patent GB-1527152-A (GB)
Title: Transplants
IPC: A61K35/12
Filed: 1976-04-02
Abstract: 1527152 Transplant preparation YEDA RESEARCH & DEVELOPMENT CO Ltd 2 April 1976 [10 April 1975] 13462/76 Heading A2D A process for the preparation of a graft from tissue derived from identical or different species comprises treating the tissue with a solution of glutaraldehyde in an aqueous solvent of suitable pH so as to diminish its antigenicity and render it resistant to infection. The tissue may be subsequently washed and reacted with a suitable amino acid or amine to block any free functional groups of bound glutaraldehyde. Negative and positive charges and hydrophobic moieties may be attached to the surface of the tissue after treatment with glutaraldehyde.
Patent GB-751600-A (GB)
Title: Microscopic oil-containing capsules and method of making them
IPC: B01J13/10
Filed: 1954-05-07
Abstract: A gellable hydrophilic colloid material is caused to form around oil droplets by coacervation and is then gelled to form microscopic oil-containing capsules.  The coacervation may be brought about by addition of a salt solution or by mixing two sols having different ionic charges followed by dilution or adjustment of the pH until coacervation occurs.  Suitable colloid materials are gelatin, albumen, alginates, casein, agar-agar, starch, pectins, carboxymethylcellulose, Irish moss and gum arabic. Sodium or ammonium sulphate may be used to coacervate gelatin, or gelatin and gum arabic sols may be mixed to provide a complex coacervate.  The oil may be emulsified in the colloid, or in either colloid in the case of complex coacervation.  Specified oils include mineral oils, fish oils such as halibut liver oil, vegetable oils such as cotton seed oil, corn oil, castor oil and coconut oil, essential oils and synthetic oils such as methyl salicylate and chlorinated diphenyl.  The oil may contain additives such as dyes used in making inks, medicines, perfumes, oil-soluble vitamins and adhesives.  The gelled coacervate may be used to coat paper to form a transfer film, the oil containing a marking ink or a reactive material such as trichlorodiphenyl containing crystal violet lactone.  On bringing such paper into contact with paper coated with attapulgite and rupturing the capsules with a stylus or other instrument a dark blue impression is formed. Detailed descriptions of methods of producing coacervation are given.
Patent GB-548619-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L5/34
Filed: 1941-10-21
Abstract: 548,619. Vacuum cleaners. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 21, 1941, No. 13522. Convention date, Oct. 25, 1940. [Class 8 (i)] The height of the suction nozzle is automatically adjusted to maintain. the suction therein constant, by mechanism the load on which is periodically reduced by the rotation of the wheels. The front wheels are mounted on an axle 8 rotatable in arms pinned to a rock shaft 10 journalled on the casing, and the axle carries a pair of opposed eccentrics 25 which carry the weight of the cleaner through pins 23 sliding in arms on the rock shaft, and wedges 21 slidable in guides under the influence of the suction. The wedges are pivoted to the ends of a bar 20 also pivoted to a link 18 connected at the ends to the rods of spring-pressed pistons 16 moving in cylinders connected through conduits 13 with the nozzle. As the wheels rotate, the shallower part of each eccentric comes on top alternately, allowing motion of the corresponding wedge, while the weight is carried by the other eccentric.
Patent GB-1374563-A (GB)
Title: Optical glass and process for its production
IPC: C03C3/21
Filed: 1973-03-21
Abstract: 1374563 Optical glass ERNST LEITZ GmbH 21 March 1973 [6 April 1972] 13525/73 Heading C1M An optical glass (which may have a refractive index in the range 1À74-1À90, a dispersion in the range 25-17, and a positive anomalous partial dispersion) comprises, in per cent by weight: the balance, if any, consisting of other compatible constituents and impurities. The balance may comprise at least one of the following: Li2O 0-5À2; K2O 0-10À4; MgO 0-6À6; CaO 0-11À3; BaO 0-15À6; PbO 0-12À1; B2O3 0-7À8; Al2O3 0-1À9; and Nb2O5 0-21. The batch materials which may be melted in forming the glass may include metaphosphates, pyrophosphates, tungstates or borates.
Patent GB-122144-A (GB)
Title: Improvements in Water Gauges for Indicating the Level in Steam Boilers and the like.
Inventor: SARGENT GEORGE HAMLIN
IPC: F22B37/78
Filed: 1918-08-20
Abstract: 122,144. Sargent, G. H. Aug. 20, 1918. Gauge glasses.-In a protector having glass panels mounted in triangular formation in frames formed by bars between collars on the ends of the gauge glass, the bars 7 and the collars 5 are cast in one piece and the glass panels 10 are held in the frames by hydraulic setting material 9. The panels are placed almost in contact with the gauge glass 13. The collars are internally threaded to receive coupling-pieces 15 bored to take rubber and asbestos or other packing material 16, which is pressed against the ends of the gauge glass by nippled glands 18.
Patent GB-1174309-A (GB)
Title: Bistable Electromagnetic Relays and Assemblies thereof.
IPC: H01H67/24
Filed: 1967-03-23
Abstract: 1,174,309. Magnetic switches; electric selectors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 March, 1967 [26 March, 1966], No. 13664/67. Headings H1L and H1N. A permanent magnet movable to operate at least one set of magnetic contacts, is reciprocable between the poles of an energizable magnetic circuit with the permanent magnet poles, at its extremities, facing poles the magnetic circuit. As shown in Fig. 1 the disc-shaped permanent magnet 1 surrounds a non-magnetic shaft 3 and is attracted to one of the poles 5, 7 on the ends of magnetic sleeves 9, 11. When coils 13, 15 surrounding the sleeves 9, 11 are energized to provide similar polarity at poles 5, 7 the magnet 1 is attracted to that pole 5 or 7 which is of opposite polarity to the facing magnet surface and on de-energization of the coils remains in this position until the coils are pulsed in the opposite direction. In the position shown the coils were last energized to produce S. poles at 5 and 7 and the magnet 1 holds sealed magnetic reed contacts 25, 27 closed and contacts 21, 23 are open. In Fig. 2 the permanent magnet surrounds a sealed, ball armature contact device similar to that disclosed in Specification 983,615 and is movable between non-magnetic buffers 44, 45 on pole plates 37, 39. A single operating coil 47 surrounds a pole member 33 having an aperture 42 through which the magnet passes. In alternative arrangements, not shown, the magnet may have a plurality of holes each accommodating a contact unit and several coils may be used. In Figs. 3, 4 and 5 (not shown), such switches form a co-ordinate assembly with coils on cores between magnetic strips or on lugs of magnetic plates having movable permanent magnets and contact units between the strips or lugs. Reference has been directed by the Comptroller to Specification 983,615.
Patent GB-1147543-A (GB)
Title: Method of preparing high purity ammonium molybdate
IPC: C01G39/00
Filed: 1967-03-23
Abstract: 1,147,543. Ammonium molybdate. PRZE. DSIEBIORSTHO PRZEMYSLOWO-HAND. LOWE POLSKIE ODCZYNNIKI CHEMICZNE. 23 March, 1967 [28 March, 1966], No. 13699/67. Heading C1A. An ammonium molybdate solution is purified by adding a suspension of a stannic hydroxide. The solution may be obtained by precipitating molybdic acid from a crude ammonium molybdate solution with HNO 3  and redissolving the precipitate in ammonia. The Sn(OH) 4  may be obtained by adding H 2 O 2  to a solution of SnSO 4  in H 2 SO 4 . The coagulated precipitate of the Sn(OH) 4  containing adsorbed impurities is separated off, and crystals of ammonium molybdate are obtained from the pure solution, e.g. by adding methanol or ethanol.
Patent GB-138483-A (GB)
Abstract: 138,483. Hadgkiss, L. M., Smith, H. J., and Kennedy, A. S. March 28, 1919. Wind-screens.-Relates to windscreens for motor-cycle side-cars, of the type which are adapted to be disposed either close to the passenger or to be moved forward towards the nose of the side-car so as to provide free egress or ingress. According to the invention, the screen 1 is mounted on a pair of forwardly curved standards 3 pivoted at their lower ends 6 to the inside of the car body, the shape of the curved standards 3 bringing the centre of gravity of the screen, in its forward position, in front of the pivots 6, so that the screen is self-retaining in this position. The standards 3 are provided near their upper ends with cranked portions 4, which are adapted to engage clips 8 on the sidecar body to hold the screen in its rearward position and have integral collars 9 coming on either side of the clips.
Patent GB-940246-A (GB)
Title: Improvements in preparation of partial glycidyl ethers of polyols
Filed: 1961-04-18
Abstract: Partial glycidyl ethers of polyols are made by mixing a polyol having at least 2 hydroxyl groups in a epihalohydrin in a ratio of at least one mol of the epihalohydrin per hydroxyl group per mol of the polyol, heating the polyol with the epihalohydrin in the presence of an alkali metal hydroxide, the mols of the alkali metal hydroxide per mol of polyol being at least one but less than the number of hydroxyl groups present in the polyol, and recovering the partial glycidyl ethers from the reaction mixture.  The mixture is heated to from 50 DEG  to 150 DEG C. to effect the condensation of epichlorohydrin and polyol to form the chlorohydrin ether which is concomitantly dehydrochlorinated to form the partial glycidyl ether.  The water formed is removed by distillation as an epichlorohydrin -water azeotrope and the product is purified. Suitable polyols are specified. Examples describe the preparation of the monoglycidyl ether of butane-diol, and the monoglycidyl and diglycidyl ethers of trimethylol propane.
Patent GB-543745-A (GB)
Title: Improved portable and collapsible structures such as sentry-boxes and watchman's shelters
IPC: E04H1/12
Filed: 1940-09-06
Abstract: 543,745. Portable buildings. FOLKES, W. H. Sept. 6, 1940, No. 13948. [Class 20 (i)] A collapsable structure such as a sentry box or watchman's shelter comprises a back panel 3, side panels 1, 2 hinged to the edges of the back panel so that they can fold on to the back panel, a flat removable roof panel 4, and removable apron panels 5, 6 for the top and bottom of the open side. The panels are formed as rectangular frames with intermediate transversals h, i to form supports for a seat 7 and a back rest, and are covered with waterproof material. The apron panels are secured in position by interfitting notched bars at f. A removable grid to serve as a floor may also be provided.