baber/WOPTO huggingface dataset:
Patent GB-1489820-A (GB)
Title: Catalyst composition for the trimerisation of polyisocyanates
IPC: C08G18/02
Filed: 1975-06-04
Abstract: 1489820 Coated products; isocyanate trimerisation catalysts UPJOHN CO 4 June 1975 [9 July 1974] 24090/75 Headings B1E and B2E [Also in Division C3] A catalyst composition for the trimerization of a polyisocyanate comprises (a) from 3-85 mole % of a tertiary amine isocyanatetrimerization catalyst; and (b) from 15-97 mole % (constituting the balance) of a C 1 -C 8 - alkanoic acid quaternary ammonium salt, wherein the quaternary substituents are selected from C 1 -C 8  alkyl radicals and aralkvl radicals, the term "aralkyl" meaning benzyl, p-methylbenzyl, p-ethylbenzyl, #-phenylethyl, naphthylmethyl and benzhydryl. The ammonium salt may be in the form of a solution containing from 20-80% wt. of the salt in a diluent, e.g. low molecular polyols, ethanolamones and dipolar aprotic solvents. A catalytic amount of a monomeric polyepoxide compound, e.g. a glycidyl ether of a novolac resin, may be used in combination with the above catalyst composition. Preferred tertiary amines are N, N-dimethylethanol amine, N, N-dimethylcyclohexylamine, N, N-dimethylbenzylamine, N, N, N', N'-tetramethyl-propane diamine, N, N, N', N'-tetramethyl-1, 3- butanediamine, N-methyl- (or ethyl)-morpholine and N, N', N"-tris-(dimethylaminopropyl) hexahydrotriazine. The catalyst composition can be used in a process for the preparation of a cellular or non-cellular polymer in which the major recurring polymer unit is isocyanurate, the process comprising bringing together a polyisocyanate, a minor amount of a polyol, the catalyst composition, and for the production of a foam, a blowing agent. The cellular products adhere to aluminium foil, tar paper, Kraft paper, asphalt felt, paper cupstock, transite (asbestos board), polyethylene, polypropylene, polyvinyl chloride and fibre glass scrim in aluminium. In the Examples polyisocyanurate foams are prepared using as the catalyst composition either (I) tetramethyl ammonium 2-ethylhexanoate in triethylene glycol and either N, N', N"-tris- (dimethylaminopropyl)- hexahydrotriazine or 2, 4, 6-tris-(dimethylaminomethyl) phenol; or (2) tetramethylammonium acetate in di- or tri-ethylene glycol, and sodium N-(2-hydroxy- 5-nonylphenyl) methyl, - N - methylglycinate alone and together with N, N-dimethylcyclohexylamine; or (3) N-methyl-morpholine, tetramethylammonium-2-ethylhexanoate in diethylene glycol, and an epoxy novolac resin.
Patent GB-673700-A (GB)
Title: Improvements in or relating to permanent magnets for magnetic cleaners
IPC: B03C1/28
Filed: 1949-09-20
Abstract: 673,700. Making permanent magnets. BIRMINGHAM SMALL ARMS CO., Ltd., OLIVER, D. A., WILSDON, S. C., and HADFIELD, D. Dec. 20, 1950 [Sept. 20, 1949], No. 24097/49. Classes 83 (ii) and 83 (iv). [Also in Group XXXV] Powder metallurgy.-An assembly of layers of ferromagnetic material alternating with layers of non-magnetic material suitable for use in a magnetic cleaner in the crank-case of an internal combustion engine is made by powder metallurgy. Cast blanks of the magnetic material may be arranged alternately with compacts of non-magnetic powder and the assembly then heated to sinter the compacts, which operation may also unite the separator layers to the blanks. Alternatively the blanks could be separated by layers of loose non- magnetic powder and the assembly compressed before sintering. In other modifications, alter nating magnetic and non-magnetic powder compacts are used or compacts of magnetic powder are separated by layers of loose non- magnetic powder or layers of loose magnetic powder separated by non-magnetic compacts. In another form all the layers are of loose powder and the mass is then compressed and sintered. The non-magnetic layers may be of aluminium-bronze, brass or copper about oneeighth of an inch thick and the assembly about two inches long and up to one inch in diameter. A shank which may be threaded so as to screw into a plug may be formed integral with the end layer or all the layers may be formed with a hole for the passage of a fixing screw. Magnetization may be carried out during or after sintering. Specification 673,699, [Group II], is referred to.
Patent GB-690323-A (GB)
Title: Stabilized rubber adhesive compositions
IPC: C09J107/00
Filed: 1951-10-16
Abstract: A rubber adhesive composition comprises natural rubber, a solvent therefor, an antioxidant, and a sufficient amount of benzoyl peroxide to import ultraviolet absorbing properties.  The antioxidant which may be added in a proportion of 0.5 to 2.0 per cent. based on the weight of the rubber may be 1, 5 naphthalene diamine, N, N1-diphenyl phenylenediamine, p-phenylenediamine, N, N1-cyclohexyl-p-phenylenediamine, b -naphthol, N-cyclohexyl-p-phenylenediamine, phenyl-a -naphthylamine, phenyl-b -naphthylamine, N, N1 diphenylp-phenylenediamine, or o-tolyl-b -naphthylamine.  The solvent may be gasoline, petroleum naphtha, benzene, toluene, heptane, carbon tetrachloride, or propylene chloride; and the benzoyl resorcinol is preferably added in solution in methanol, ethanol, propanol, n-butanol, sec. butenol, acetone, methyl ethyl ketone, diethyl ketone, methyl propyl ketone, methyl acetate, ethyl acetate, butyl acetate, sec. butyl acetate or methyl, ethyl, propyl or butyl formate.  A resinous component such as hydrogenated rosin, coumarone indene resin or a polyterpene resin may also be added.  In an example, benzoyl resorcinol dissolved in ethyl acetate, was added to a solution obtained by dissolving milled crepe rubber, N, N1-diphenyl p-phenylenediamine and hydrogenated rosin in heptane.
Patent GB-533168-A (GB)
Title: Improvements in, and connected with, electrical switchgear suitable for pole-changing in motors
IPC: H01H71/10
Filed: 1939-08-22
Abstract: 533,168. Electrically-released switches; cases; contacts. CRABTREE & CO., Ltd., J. A., and McLOUGHLIN, H. F. Aug. 22, 1939, No. 24121. [Class 38 (v)] Electric switches having a thermal release device in each pole or phase, have a compartment for auxiliary contacts disposed on the end of the switch casing, which, in Fig. 1, comprises a pile of carriers a each chambered to receive fixed and movable contacts b, c actuated by cams f on a spindle e, as in Specification 533,163. The spindle e extends into the compartment when it carries an auxiliary-contact operating cam f' having two lobes k, k<1> for operating two contactarrangements when moved from either side of a neutral position. The upper arrangement, which may be used for pole-changing motor control or for star-delta starting, comprises an L-shaped arm m pivoted at m' about a contact-stud 2, a blade o, and a strip p engaged by the cam-lobe k. In the position shown, contact-studs 1, 3 are short-circuited, and remain short-circuited when k is rotated to the left, a spring-pin arrangement n on the arm m allowing the members o, p freedom to tilt. When k is rotated to the right, the short-circuit is removed. The other contactarrangement comprises two sets, each comprising an inner member s and an outer member t, both pivoted on a stud 4. One limb of s bears on a peripheral rib j and the other carries a contact s' engageable with a stud 5. One limb of t is engageable with a stud 6 and the other is engaged by the cam-lobe k<1>. These contacts may control indicating-lamps or interlocking circuits. The two parts i, i' of the housing are secured with their peripheral ribs j abutting, and bolts v have their ends fixed in the part i' by metal clips w and, tapped to receive securing screws for the part i. The Provisional Specification describes modified forms of both contactarrangements.
Patent GB-1064643-A (GB)
Title: Improvements in or relating to thermally responsive switch actuating members and switches incorporating them
IPC: H01H37/54
Filed: 1964-06-10
Abstract: 1,064,643. Springs. OTTER CONTROLS Ltd., and J. C. TAYLOR. June 9, 1965 [June 10, 1964], No. 24126/64. Heading F2S. [Also in Divisions G1 and H2] A snap-acting bimetal sheet-actuating member similar to that of Specification 657,434, but not carrying a contact, is provided with an abutment 9 on the bridge between the outer legs 3 overlying the free end of the tongue 2 to prevent the tongue 2 assuming its natural position in the cold condition to pre-stress the tongue 2 to determine the rising temperature at which the member operates. The bridge may be separate but permanently secured to the outer legs 3 with the abutment integral with the bridge or the bridge may be integral with the sheet and the abutment 9 integral with a plate 6 mounted on the bridge, plate 6 having mounting holes 7. Embodiments are described in which the actuating member operates a switch. Reference has been directed by the Comptroller to Specification 657,434.
Patent GB-671967-A (GB)
Title: Improvements in hydraulically-operated change-speed gear
IPC: F16H61/02
Filed: 1949-09-20
Abstract: 671,967. Variable-speed gears. AVELING- BARFORD, Ltd., and WILCOCK, C. M. Aug. 30, 1950 [Sept. 20, 1949], No. 24141/49. Class 80 (ii). On each of the shafts A, B and C of a hydraulically-operated change-speed and reversing gear, a double-coned inner clutching member 1 may be brought into frictional engagement with either of two outer clutching members 2, 3 normally free to rotate on the shafts, as described in Specification 671,964. Clutch gears 4, 5, 11, 12, 16, 17 are formed integrally with the outer members 2, 3 and may thereby be clutched for rotation with the shafts. Gears 6, 7 fast on a driving shaft 8 mesh with the clutch gears 4, 5 on shaft A, which has fixed to it gears 13, 15. The gear 13 meshes directly with the clutch gear 11 on shaft B, while the gear 15 meshes with a. reversing idler 14 which in turn meshes with the clutch gear 12. Similarly, gears 18, 19 fast on shaft B mesh with the clutch gears 16, 17 on shaft C; shaft C carries an output gear 20.
Patent GB-977775-A (GB)
Title: Improvements in or relating to implements for spreading powdered or granular materials over the ground
IPC: E01C19/20
Filed: 1961-01-03
Abstract: The subject matter of this Specification is included in that of Specification 977,772 but the claims differ.  Specifications 977,773 and 977,774 also are referred to.
Patent GB-282891-A (GB)
Title: Process for the manufacture of aromatic oxamic acid halogenides
IPC: C07C233/00
Filed: 1926-09-30
Abstract: 282,891. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Sept. 30, 1926. Oxamic acid halogenides are produced by the action of oxalyl halogenides on the salts of primary aromatic amines. A large or slight excess of oxalyl halogenides and indifferent diluents may be used. Examples are given of the preparation of (1) phenyl-oxamic acid chloride by the action of oxalyl chloride on aniline hydrochloride; (2) #-naphthyl-oxamic acid chloride by the action of oxalyl chloride on #-naphthylamine hydrochloride. o-Tolyloxamic acid chloride and a-naphthyloxamic acid chloride can be prepared in a similar manner, but with gentle heating.
Patent GB-316987-A (GB)
Title: Process for the manufacture of complex borofluoro organic acids and salts thereof
IPC: C07C51/41
Filed: 1929-08-07
Abstract: 316,987. I. G. Farbenindustrie Akt.- Ges. Aug. 7, 1928, [Convention date]. Proofing against vermin; proofing, compositions. -Complex borofluoro organic acids and salts thereof are prepared by the interaction of hydrofluoric acid, boric acid and any desired organic acid, the two latter compounds being employed either as such or in the, form of a compound. The hydrofluoric acid may be added to a mixture of boric acid and an organic acid, or boric acid is dissolved in hydrofluoric acid and an organic acid is added, or hydrofluoric acid is caused to react on baroacetic anhydride. Organic acids which may be used are acetic acid, formic acid, benzole acid and the like. In an example boric acid is stirred into glacial acetic acid and aqueous hydrofluoric acid is added with cooling, giving boro trifluoro acetic acid which has the protective action against textile pests described in Specification 298,538.
Patent GB-508748-A (GB)
Title: Improvements in and relating to pyrophoric lighters
IPC: F23Q2/08
Filed: 1938-08-17
Abstract: 508,748. Frictional igniters. DUNHILL, Ltd., A., DUNHILL, A. H., CASH, S. E., and CASH, A. S., [Representatives of DUNHILL, V.]. Aug. 17, 1938, No. 24236. [Class 75 (iii)] In a pocket or table igniter simulating a book, the friction-wheel 7 is coupled by a oneway clutch with a pivoted arm 8 adapted to be engaged by a projection 18 on a sliding bar 14, pivoted to the cover 4 and engaging a guideway 17, so that, on opening the cover, the arm 8 is moved against the action of a spring 11 until it is released and rapidly returned by the spring for rotating the wheel 7 to ignite the wick 5. The wick-cap 20 is pivoted to the cover and urged by a spring 21 into engagement with a stop 22 when the cover is open so that it snuffs the wick before the cover can reach the flame. The body 1 is preferably provided with a cover-plate (not shown), secured by screws to posts 19 to cover the mechanism but not the wick 5 and the flint tube 6, the bar 14 passing through a slot in the cover-plate. The flint tube 6 may be provided with a slot and a retractable spring-pressed plunger to permit insertion of a flint. The body 1 and cover 4 are bound in leather, cloth, &c.
Patent GB-245389-A (GB)
Title: Improvements in folding motor road vehicles
IPC: B62D31/00
Filed: 1925-09-29
Abstract: 245,389. Kinvall, H. Sept. 29, 1925. Seats, arrangement of.-An emergency seat 4, which may serve as a luggage carrier, may be attached to the folding rear panel 3, 3<1> of a folding vehicle.
Patent GB-725521-A (GB)
Title: A peeling-device for bulbs and especially for small onions
Inventor: ZON THEODORUS ANTONIUS VAN
IPC: A23N15/08
Filed: 1953-09-02
Abstract: 725,521. Peeling &c. onions. ZWANENBURG & CO. N. V., A. Sept. 2, 1953, No. 24291/53. Class 28 (2). Small onions are skinned by the action of a series of small chains 22 which rub them over a rotated slotted disc 1, the tops and tails of the onions, which at one time or other project through the slots 2, being cut off by knives 8 on a faster rotating under-disc 7. The chains 22 are given an oscillating as well as a rotating motion by being suspended from a grating of radial arms 17, the centre of which surrounds a rotated eccentric 15 by which it is shaken. The onions drop through an aperture 21 on the grating 17 under the aperture of the hopper. The onions follow a spiral path through a spiral guide 18 below 17 from the centre outwards to a discharge shoot 20, Fig. 4. The skins pass through the slots 2. The tops and tails with the skins pass through slots arranged in front of each knife 8. The knives 8 are at an angle to the radii of the knife carrying disc 7. For larger onions the shaking grate 17 with its chains is adjustably raised further from the slotted disc 1.
Patent GB-1476849-A (GB)
Title: System for mitigating the effects of an accident at a nuclear power plant
IPC: G21C13/00
Filed: 1975-06-05
Abstract: 1476849 Nuclear reactors VSES TEPLOTEKHNI CHE N I INST IM FE DZERZHINSKOGO 5 June 1975 [5 June 1974] 24317/75 Heading G6C A system to mitigate the effects of an accident involving leakage of water at high temperature and pressure from the cooling system 4 of a nuclear reactor 3 comprises a container 2 surrounding the reactor and its cooling system and communicating with a second container 9 via a bubbling device 10 and a non-return valve 18; on escape of reactor coolant, steam forces air from container 2 into container 9 and the escaping steam is condensed at 10, thus creating reduced pressure in container 2; condensation is assisted by sprinkler 19. Condensed water collects in sump 23 and may be purified and used for sprinkler 19. In modifications, Figs. 2-4 (not shown): a plurality of condensers 10 are connected to a common container 9 inside which is arranged the container 2; a plurality of condensers 10 is provided, each one of which is connected to a separate container 9; several containers 9 have a group of condensers 10 and non-return valves 18 associated with each container.
Patent GB-679792-A (GB)
Title: Improvements in apparatus for counting the number of particles present in a liquid medium
Inventor: KNOWLES ALFRED JOHN
IPC: G06M1/10
Filed: 1949-07-08
Abstract: 679,792. Blood-testing equipment. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 5, 1950 [July 8, 1949], No. 24365/50 Divided out of 679,711. Class 81 (ii). A capillary tube, made so that its cross-sectional dimensions are variable, is constructed of two parallel plates 13, 14, which may be of glass, separated by two metal shims 11, 12 placed edge to edge so that the tube is formed by the space between them. The assembly is clamped together by rigid side plates 15, 16, and a screw 20 may be provided to adjust one shim 12 laterally to vary the dimensions of the tube. In applying the arrangement to blood counting apparatus the tube is required to be of very small dimensions over only a short part of its length and accordingly the co-operating edges of the shims are bowed towards each other so as to give a minimum separation at the mid-point of the length of the tube. see Fig. 1 (not shown). In a modified form to facilitate cleaning, see Fig. 3 (not shown), the side plates are mounted in supporting frames which are hinged together so as to be readily separable. Specification 679,774 is referred to.
Patent GB-367335-A (GB)
Title: Improvements relating to luminous signs
IPC: G09F13/12
Filed: 1930-08-14
Abstract: 367,335. Changing signs. LECORNU, R. P. G., 401, Rue des Pyrenees, Paris. Aug. 14, 1930, No. 24405. Convention date, Sept. 17, 1929. Void [Published under Sect. 91 of the Acts]. [Class 3 (i).] A sign comprises a transparent mirror illuminated from the rear by a lamp i lit intermittently by a thermal or mechanical switch. The facia consists of a glass sheet b, a thin silver coating c, a coat of varnish d, a cover glass e, a design &c. on paper R c. f, and a sheet of coloured ground glass g. The interior of the casing a is formed as a reflector h, and the design &c. may be produced by making areas of the mirror c opaque.
Patent GB-913268-A (GB)
Title: A die for forming fissures in mineral felts
IPC: E04F13/16
Filed: 1960-07-13
Abstract: 913,268. Embossing surfaces. WOOD CONVERSION CO. July 13, 1960 [Sept. 28, 1959], No. 24441/60. Classes 100 (1) and 100 (2). A die for forming fissures in mineral felts comprises a base having a plane or cylindrical face from which projects a mass having an irregular contour on the face and rising to irregular heights from the face, the shape of the mass being that of a number of closely-packed pins projecting to various heights from the base. The die of Fig. 3 comprises a wooden base 10 into which a number of nails 16 are driven in packed formation at various angles. The heads of the nails are cut off at different angles to produce the effect shown. Fig. 5 shows an integral metal casting taken from the die of Fig. 3. Pins 34, 35, 36 may be inserted in the dies, after casing in the case of Fig. 5, and serve to perforate the tiles with sound-absorbing holes. The dies may be cylindrical instead of flat. If a flat die is used the impression may be made through a stripper plate having apertures through which the raised portions of the die project, the peripheral side walls of the raised portions being perpendicular to the plane upper face 10a of the base in this case. The stripper plate may carry adjustable stops which regulate the depth of penetration of the die into a tile.
Patent GB-1136327-A (GB)
Title: Improvements in or relating to the production of esters and alcohols
IPC: C07C69/22
Filed: 1967-05-25
Abstract: 1,136,327. Isopropyl esters. MELLEBEZONS. 25 May, 1967 [30 June, 1966; 17 March, 1967], No. 24474/67. Heading C2C. Isopropyl esters of the formula wherein R is a C 1-3  alkyl radical or mixtures of such esters and isopropanol are produced in a continuous process by heating carboxylic acids of the formula RCO 2 H, water vapour and a mixture resulting from propylene absorption in aqueous sulphuric acid, the reaction being effected by feeding the reactants to a distillation column maintained at 75 to 140‹ C. and at or above atmospheric pressure, and separating the product by distillation in the column. Di-isopropyl ether is produced as a byproduct.
Patent GB-995563-A (GB)
Title: Apparatus for producing and accelerating a positive ion beam
IPC: H05H13/04
Filed: 1962-06-26
Abstract: 995,563. Ion sources; particle accelerators. VARIAN ASSOCIATES. June 26, 1962 [June 29, 1961], No. 24546/62. Heading H1D. In a synchrotron accelerator, a positive ion beam is produced by a gun 10 comprising a hollow open-ended anode and two cathodes, apertured for passage of the ion beam, and arranged at opposite ends of the anode, to maintain a glow discharge in the presence of an axial magnetic field and at pressures below 10<SP>-3</SP> mm. of Hg. Preferably a voltage of at least 2 KV. is applied between the anode and cathodes to produce a substantially monovoltage ion beam. The anode may be of circular, square or rectangular cross-section, and the product of the axial magnetic field intensity and the smallest inner diameter of the anode is preferably at least 300 gauss-inches. The axial magnetic field may be produced between apertured polepieces which support the cathodes.
Patent GB-200404-A (GB)
Title: Strainer for wells
IPC: E21B43/08
Filed: 1922-09-11
Abstract: 200,404. Abe, O. Sept. 11, 1922. Wells. - In a well, the strainer 2 is provided with one or more flanges 3 with radial apertures in which pegs 6 are arranged, a thin copper wrapping 4 being arranged around each flange to retain the pegs; after sinldng the bore-hole and the casing 1, the latter is raised slightly, the strainer is lowered into position and by means of a conical hammer 7, the wrapping 4 is ruptured and the pegs are forced outwardly into the ground to support the strainer. The casing is then lowered so as to rest on the pegs.