baber/WOPTO huggingface dataset:
Patent GB-207563-A (GB)
Title: Improvements in and relating to the manufacture of detonators and the like
IPC: C06B35/00
Filed: 1922-05-25
Abstract: o- and p-Nitrated quinone diazides are described for use in explosives.  The potassium salt of dinitro-m-oxyquinonediazide is obtained from mononitroamidoresorcin by treatment of the hot strong solution in sulphuric and nitric acid with excess of potassium nitrite and long boiling.  On cooling, the salt crystallizes in fine yellow needles. Dinitro-3-5-dioxyquinonediazide is prepared in the same way from mono- or di-nitroamidophloroglucin.
Patent GB-1127911-A (GB)
Title: Resinous composition
Inventor: MILLARD JOHN WILLIAM
IPC: H04Q11/04
Filed: 1965-04-07
Abstract: 1,127,911. Coated aluminium sheets. HOWARDS OF ILFORD Ltd. 23 March, 1966 [7 April, 19651, No. 14827/65. Heading B2K. [Also in Division C3] A mixture of a ketone-aldehyde condensate resin and a liquid to semi-solid polyamide resin obtained by condensing a polymeric fat acid with a poly alkylene polyamine containing both primary and secondary amine groups may be dissolved, e.g. in ethanol or isopropanol, to give a bakeable coating composition. Coating compositions may also be obtained by reacting the mixture of resins to a degree short of alcohol-insolubility and dissolving the reaction product in alcohol. In Examples a cyclohexanone-formaldehyde resin (M.P. 100C) and a commercial polyamide are mixed and (1) dissolved in ethanol, spread on aluminium panels, and stoved at 175C for 30 minutes or (3) heated at 140C with samples withdrawn at varying times and dissolved in alcohol, films being cast from the solution on aluminium sheets.
Patent GB-872548-A (GB)
Title: Improvements in containers such as cases and crates for bottles
IPC: B65D6/00
Filed: 1958-05-09
Abstract: 872,548. Bottle crates. SOC. GENERALE DES EAUX MINERALES DE VITTEL. May 9, 1958 [May 24, 1957], No. 14910/58. Class 18. A rectangular bottle crate 1 pressed in a single operation from a composition, e.g. wood shavings and resin, has at opposite ends handholds 9, 10 each having a horizontal lifting edge 11 and a vertical gripping edge 12. The side walls are formed with vertical undulations and horizontal ribs 3, 3<SP>1</SP> reinforce them. The corners are radiused as at 4 on their inside and bevelled as at 5 on their outside ; grooves 7 in the bottom communicate with drainage holes 8.
Patent GB-1285421-A (GB)
Title: Gear generating method and apparatus
IPC: B23F9/10
Filed: 1971-05-14
Abstract: 1285421 Gear-cutting GLEASON WORKS 14 May 1971 [29 June 1970] 15005/71 Heading B3K A multiple-tooth gear is cut from a blank 12 by engaging the blank with a cutter 14 during a generating roll of predetermined speed, rotating the cutter at a predetermined rate in timed relation to the roll, to cut the blank a plurality of times during each generating roll, and varying the timed relationship so as to change the number of cuts made by the cutter during the second of two successive generating rolls. Gear blank 12 rotates about an axis 30, cutter 14 rotates about an axis 20, and is mounted in a cradle 22 which in turn is mounted in a cutter slide for rotation about an axis 26, the slide being movable towards and away from blank 12. In operation, the cutter is moved up to bank 12 and rotation is carried out about axes 20, 26, 30 so that one spiral tooth is generated in gear blank 12. The cutter slide is withdrawn, and the blank is indexed, so that a second tooth can be generated. In order to vary the cutting pattern on each tooth so as to reduce the noise peaks when the finished gear is used in a transmission, the timed relationship between the cutting rate and the generating roll is varied between the cutting of each tooth. In order to carry this out the arrangement shown in Fig. 2 is used. When the cutter slide is moved towards the blank 12, a rod 32 which carries a pawl 34 is moved upwardly so as to rotate a ratchet wheel 36 one step. This rotates a cam 38 so that a follower 42 rotates a gear 48 meshing with a gear 50 which is fixed to the shaft 52 of a potentiometer 54. The angular position of shaft 52 selects various values of resistance for potentiometer 54 so that the speed of machine control motor 56 can be varied. This alters the timed relationship between cutting speed and generating roll for each tooth to be cut. The motor speed is varied to prevent any repetitive pattern. The effective contour of the teeth is not varied.
Patent GB-612346-A (GB)
Title: Manufacture of crotonic acid
IPC: C07C51/25
Filed: 1946-05-17
Abstract: Crotonic acid is prepared by catalytic oxidation of crotonaldehyde with oxygen in a liquid medium at 5-10 DEG  C.  The solvent is preferably glacial acetic acid, and the catalyst preferably comprises a mixture of manganese acetate and potassium permanganate.  The oxidation may be made continuous by alternately using dual oxidation vessels.
Patent GB-200983-A (GB)
Title: Improvements in cigarette packing machines
IPC: B65B19/04
Filed: 1922-05-29
Abstract: 200,983. Molins, W. E. May 29, 1922. Packeting cigarettes in receptacles; packeting by wrapping-up. -Relates to machines for packeting or wrapping cigarettes, each bunch of cigarettes being passed into a compression box having sides moving with the cigarettes and entering the wrapping or packeting mechanism and assisting the accurate operation thereof. The invention is applicable to apparatus such as is describedin Specifications 13957/15 and 165,891. In the form shown, two rows of cigarettes are fed forward, one being delivered to the machine bed 1, Figs. 2 and 6, and the other being swept off a bridge 30 by a sweeper 31. Conveyer plates 3 feed the bunch forward beneath a pivoted depresser plate, which is raised at intervals, and the top row is aligned by spring- pressed flap 32. The top row contains one cigarette more than the bottom row, compensation being made by filling strips 10 on the guides 9. The top plate 11 of the compression box is bevelled at the forward edge and the sides 14 are carried by links 15, 16 so actuated that they swing through the course shown in broken lines in Fig. 6 to a position of maximum compression, when the links are at 50, and to a forward position C when the compression is somewhat released and the left-hand ends of the sides enter the wrapping mechanism. The links 15 are pivoted at 18, Fig. 3, and are operated by the engagement of mutilated bevel segments 23, 27, a torsion spring on the pivot 19 returning the parts to the initial position when the segments are not in contact. When the cigarettes are to be wrapped in foil, the foil wrapper is fed vertically downward between guides 7, 26 and through a slot 4, being carried into the folding box 5 by the bunch of cigarettes. The wrapping material may be previously passed through creasing mechanism such as is described in Specification 200,655, [Class 100 (ii), Printing processes &c.]. Alternatively, the outlet from the compressing members 14 may be a mouthpiece through which the cigarettes are passed into a: packet as described in Specification 166,406.
Patent GB-820391-A (GB)
Title: Improved container for the transportation of various goods
IPC: B65D90/14
Filed: 1957-05-13
Abstract: 820,391. Boxes. LION, J. E. F. May 13, 1957 [July 19, 1956], No. 15065/57. Class 18. [Also in Groups XIV, XXVIII and XXX] A box has power operated raising and lowering means at the corners to facilitate loading and unloading from vehicles &c. The power means may be hydraulic, mechanical or pneumatic jacks operating retractable legs, (see Group XXX) which may be moved either in pairs or simultaneously. In the described embodiments, legs 6b are arranged at two corners and legs 6a are adjacent the other two. The legs have castors (see Group XIV) which may be removed as required and fitted into dovetail grooves 12b in the box bottom. The box may have securing and lifting rings 14, 15, the latter being retractable within the box double bottom. Grooves 17, 18 are arranged for co-operation with projections on a supporting surface. The box may have a side access door 5.
Patent GB-119307-A (GB)
Title: Improvements in Pumps.
IPC: F04B49/00
Filed: 1917-10-17
Abstract: 119,307. New Rotoplunge Pump Co., Smith, C. Lakin-, and Beckwith, N. G. Oct. 17, 1917. Pumps in series; revolving-cylinder pumps. -A rotary-cylinder pump for lubricating &c. comprises two pump barrels of different capacities, arranged at right-angles, the larger feeding the smaller. Two connected pistons 8 are reciprocated in the large cylinder 1 by an internal eccentric and feed the smaller cylinder 2, in which the pistons 10 are similarly reciprocated. A relief valve 5 is provided in the conduit between the two pumps.
Patent GB-1056517-A (GB)
Title: Isomerisation process
Inventor: ASSELIN GEORGE FRANCIS
IPC: C07C9/16
Filed: 1964-04-13
Abstract: A hydrocarbon mixture containing C5 and C6 alkanes is isomerized by separating product isopentane from mixed fresh charge and a C5 recycle, adding C6 recycle to the rimainder and isomerizing, separating gases from the effluent and separating the liquid into C5 which is recycled and C6 fractions removing part of the C6 fraction as a product bleed stream to prevent build up of cyclic hydrocarbons and fractionating the remainder into an isohexane product and a n-hexane stream which is recycled. Isomerization is preferably effected in the presence of hydrogen and a hydrogenation metal catalyst on an acidic support which may also contain a Friedel-Crafts component or in the presence of an aluminium halide and hydrogen halide.
Patent GB-1107300-A (GB)
Title: Moderator-nuclear fuel element
Inventor: BOURRASSE ANDRE
IPC: G21C3/58
Filed: 1966-04-05
Abstract: 1,107,300. Nuclear fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 5 April, 1966 [26 April, 1965], No. 15117/66. Heading G6C. A nuclear fuel element comprises refractory nuclear fuel particles dispersed in yttrium hydride as moderator, the fuel particles being coated with a material which does not react with yttrium hydride. The fuel element may be enclosed in a can of molybdenum or refractory alloy lined with a nitride, carbide, silicide, boride, or oxide layer, or with an aluminium silicate-zirconium silicate enamel to inhibit diffusion of hydrogen. A molybdenum layer may be interposed between the fuel and the can. The element may be made by mixing ground yttrium with spherical U0 2  particles coated with molybdenum, pressing hydraulically, sintering at 1000-1200‹ C., placing in a metal can, and then hydriding the yttrium; a heat insulating MgO pellet may be inserted and then an end cap fixed. The element is suitable for use at high temperatures in a space vehicle propulsion nuclear reactor employing alkali metal as coolant.
Patent GB-612359-A (GB)
Title: Improvements in radio antennas
IPC: H01Q1/36
Filed: 1946-05-21
Abstract: 612,359. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 21, 1946, Nos. 15304 and 15305. Convention dates, Jan. 27, 1945. [Class 40 (vii)] A broad band antenna having its radiation a maximum in a horizontal plane comprises at least one flat sheet, screen, or grid of substantially oblong outline having a substantially rectilinear edge extending lengthwise and being substantially vertical, the. ends of said edge being grounded and the feeder being connected to it between them. The antenna is suitable for the reception or radiation of horizontally polarised waves. Fig. 1 shows a turnstile antenna comprising four rectangular sheets 1, 3, 5, 7 mounted round a conductive mast with their longer vertical edges, which are a half of the operating wavelength in length, grounded to the mast at 11 and 13. The turnstile antenna so formed has successive elements fed progressively in quadrature by feeders running up the mast and connected to the mid-points of the sheet edges nearest the mast. The sheets are a quarter wavelength in width and the mast need not be conductive if the feeders have grounded co-axial sheaths connected to the ground points of the sheets. A stack of such turnstile antennµ, Fig. 2, not shown) comprises 4 rectangular sheets a multiple of half-wavelengths long, grounded at the ends and every half wavelength and fed at the mid-points of each section with currents of appropriate phase. A dipole comprising two oppositely spaced wire grids with feeding arrangements and dimensions similar to sheets 1 and 5 of Fig. 1 is described with reference to Fig. 3 (not shown). A modified turnstile antenna stated to provide vertical directivity equivalent to two layers of a turnstile of convential design is constructed from sheets fiveeighths of the operating wavelength long and of maximum width of quarter of a wavelength; a broad V-shaped notch reducing the width at the centre to an eighth of a wavelength is cut out from the outside edge of each sheet. Such turnstile antennµ require stacking with their centres a wavelength apart, Figs. 4 and 5 (not shown). The non-linear edge of the notched sheets may be rounded as shown in the single sheet antenna embodiment of Fig. 6. Fig. 7 shows the equivalent of Fig. 6 constructed in the form of a screen of parallel rods, such a construction having considerably less wind resistance. Any form of sheet, screen or grid described may be used in the construction of single, dipole, turnstile or stack antennµ. Specification 481,903 is referred to.
Patent GB-727720-A (GB)
Title: Improvements in or relating to power units
Inventor: BROUGHTON LESLIE WILLIAM
IPC: F02K9/68
Filed: 1951-06-27
Abstract: 727,720. Hydrogen peroxide in rocket motors. MINISTER OF SUPPLY. June 9, 1952 [June 27, 1951], No. 15308/51. Class 110 (3). [Also in Group XII] In a jet reaction rocket motor hydrogen peroxide is fed under pressure through a catalyst and the resulting steam and oxygen pass into a combustion chamber, kerosene or a like fuel being passed into the latter chamber near the steam and oxygen so that combustion results. Hydrogen peroxide is fed via the inlet 24 and the spaces 16 and 18, where it acts as a coolant, to the orifices 23 and so to a catalyst chamber 13 where it is decomposed to give oxygen and steam which pass via the orifices 37 into the combustion chamber 11. Kerosene or a like fuel is passed via the inlet 36 and the passages 28 and 29 to the annular slits 17, 33 and 34, being ignited by the hot steam-oxygen mixture. The temperature of the oxygen-steam mixture may be raised by using a temporary baffle plate 38 which is ejected by the increased pressure when the fuel ignites.
Patent GB-789362-A (GB)
Title: Improvements in the production of dehydrovitamin a ethers and esters
Filed: 1956-05-17
Abstract: Dehydrovitamin A ethers and esters are obtained by reacting a compound having the formula: <FORM:0789362/IV (b)/1> wherein X represents a halogen atom and R represents a lower alkyl or acyl group, with an equivalent amount of a phosphine, especially triphenyl phosphine, to form a quaternary phosphonium halide, converting the latter into the corresponding phosphine-ylide by treatment with an agent which splits off hydrogen halide and adding b -ionone to the phosphine-ylide. Agents which split off hydrogen halide are strong bases, e.g. phenyl or butyl lithium, sodium acetylide, alkali or alkaline-earth metal amides and alkali or alkaline-earth metal alcoholates.  Examples describe the preparation of dehydrovitamin A methyl ether and dehydrovitamin A acetate.
Patent GB-370716-A (GB)
Title: Manufacture of oxyethylamino-derivatives of the anthaquinone series
IPC: C09B1/515
Filed: 1931-05-27
Abstract: Oxyethylaminoanthraquinones; cellulose acetate, dyeing.--Oxyethylaminoanthraquinones are made (1) by heating a leuco symmetrical 1 : 4-dioxyethylaminoanthraquinone in presence of concentrated monoethanolamine, with access of air or (2) by heating a leuco-1 : 4-dioxyanthraquinone with excess of concentrated monoethanolamine with access of air.  In examples (1) the leuco product obtained from leuco - 1 : 4 : 5 : 8 - tetraoxyanthraquinone and alcoholic monoethanolamine is heated with pure monoethanolamine (bluish green on acetate silk), (2) the product from leuco-1 : 4-dioxyanthraquinone and monoethanolamine is treated as above; the dyestuff colours acetate silk pure blue, (3) leuco-1 : 4 : 5 : 8-tetraoxyanthraquinone is heated with monoethanolamine with access of air.  Specifications 270,779 and 289,807, [both in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of the products of the reaction of ethylene oxide with ammonia.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1126382-A (GB)
Title: Improvements relating to apparatus for the measuring and recording of signals
IPC: G01V3/00
Filed: 1966-04-07
Abstract: 1,126,382. Measuring electrically; recording- apparatus. BUZZARDS CORP. April 7, 1966 [April 7, 1965], No. 15629/66. Headings G1J and G1N. Apparatus for measuring e.g. the temperature of the sea at different levels by a thermistor in a probe attached to a ship by a cable incorporates receiving and recording-apparatus on the ship producing a graphical representation of temperature against depth. The resistance of a rheostat 36 (Fig. 2) in the receiver is adjusted to that of the thermistor in the nose of the appropriate probe 54-56 by feeding a chopped D. C. through each alternately and comparing the potential drops in a differential amplifier 34 which causes servomotor 35 to adjust rheostat 36 so that the potential drops are equal. Motor 35 also drives a mirror 57 so that a beam of light from lamp 41 reflected on to a photo-sensitive card 66 is moved in one co-ordinate direction in accordance with the measured temperature, and in the other co-ordinate direction in accordance with depth, the latter movement being produced by a motor 39. The trace of light is subsequently fixed by heat from a local heater 44. The card 66 forms part of a larger punched card 60 giving further details of the particular test.
Patent GB-1193253-A (GB)
Title: Aromatic Polymers
Inventor: ROSE JOHN BREWSTER
IPC: C08G75/23
Filed: 1966-04-07
Abstract: 1,193,253. Aromatic polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 July, 1967 [7 April, 1966], No. 15657/66. Heading C3R. The invention comprises polymers containing units of formula where n is an integer, each R and R<SP>1</SP> is hydrogen or alkyl, Ar is p-phenylene, each Ar‹, Ar<SP>1</SP> and Ar<SP>11 </SP>is a radical derived from benzene or naphthalene, Y is oxygen or sulphur or is dibenzofuran-2,8-diyl, and each Z and Z<SP>1</SP> is sulphonyl or carbonyl or -Ar<SP>1</SP>-Z<SP>1</SP>- is a valency bond. The polymers are prepared by polycondensation with elimination of hydrogen halide of (i) a compound of formula where X is chlorine or bromine, with (ii) a compound of formula The reaction may be carried out in a solvent in the presence of a Friedel-Crafts catalyst. In examples polymers are prepared by reacting bis- (4-phenoxyphenyl) sulphone with α,α<SP>1</SP>-dichlorop - xylene, 4,6 - bis - (chloromethyl) - m - xylene 2,5 - bis - (chloromethyl) -p-xylene, bis - (chloromethyl) mesitylene, bis-(chloromethyl)-durene, α,α<SP>1</SP>,2,4,5,6 - hexachloro - m - xylene, 2,5 - dichloro - 3,6 - bis - (chloromethyl) - p - xylene and 2,5 - bis - (chloromethyl) - 1,4 - dimethoxybenzene, the reactions being carried out in nitrobenzene with ferric chloride as catalyst.
Patent GB-254309-A (GB)
Title: Improvements in systems for the transmission of signals and the like
IPC: H02J13/00
Filed: 1926-06-22
Abstract: 254,309. Bethenod, J. June 25, 1925, [Convention date]. Signalling over power circuits.-Beat-frequency currents, carried by the existing mains 1 of a three-phase supply system, are utilized for sending signals or controlling a distant relay 48, 49, 50. Current, say of 1000 cycles from an alternator 6, branched across the neutral wire 3 and earth, is modulated by a second alternator 54 which, when the switch 55 is closed, varies the saturation of an inductance 53 at a frequency of 995 cycles. The receiving circuit 7, 9 is tuned to the resulting beat frequency, which vibrates an armature 48 against a fixed contact 50, thereby changing the mean current through a coil 49 to operate a local relay &c. The beat frequency may be produced by feeding a heteropolar alternator with current of a different frequency, or by coupling together two alternators having a slightly-different number of poles. A loop circuit 56, 57 at the receiving end may be timed to one primary frequency and the circuit 9, 7 to the second primary frequency. The system may be used to change the meter rating, from time to time, in a public lighting system. Specification 157,081, [Class 105, Railway signals &c.], is referred to.
Patent GB-321384-A (GB)
Title: Improvements in or relating to rock abrading machines
IPC: E21D9/10
Filed: 1928-11-23
Abstract: 321,384. Francois Cementation Co., Ltd., Degenhardt, W. R., Fraine, A. F. de, Bicknell, R. A. W., and Bicknell, A. Nov. 23, 1928. Divided on 311,839. Digging-apparatus.-In apparatus for tunnelling and shaft-making in which rotary tool heads provided with loosely-pivoted chipping tools are carried by a rotatable frame at different radial distances from the axis of the tunnel &c., the tool heads rotate about different axes each tangential to a circle struck from the axis of rotation of the rotatable frame. As shown, the tool heads comprise ring-shaped cutters A loosely pivoted to tool heads C as in Specification 311,839, three such tool heads being carried by brackets D<1> on a rotatable frame D secured to a hollow boss D<2> on a hollow shaft D<3> which is rotated bv a motor D<12> through multiple-rope gearing D<9>, worm gearing D<8> and spur gearing D<5>, D‹. The tool heads are themselves rotated through multiple ropes C<2>, sets of spur gearing C<4>, C<5>, C<6>, bevel gearing within the hollow boss D<2>, and a shaft C<10> passing through the hollow shaft D<3> to a motor C<11>. The frame D may have a radial bar provided with a scoop deliverng loose debris to a reciprocating conveyer D<4x> of the push-plate type.
Patent GB-374615-A (GB)
Title: Improvements relating to belt conveyors
IPC: B65G21/14
Filed: 1931-05-29
Abstract: 374,615. Endless belt conveyers. NYBORG, T. G. and HIGGINS, M. F., Meco Works, Worcester. May 29, 1931, No. 15763. [Class 78 (i).] In a conveyer of the kind in which a portion of the belt is folded back upon itself about an idle roller, the position of which is adjustable in order that the working run can be lengthened or shortened, the shaft 13 of the movable roller 7 is mounted in blocks 15 disposed in slide-ways 11 and connected by lugs 16 and brackets 21 to the ends of chains 17. The chains are passed round sprockets 18, 19 and are moved in either direction by a double-headed pawl 23 on a lever 22. A retaining pawl 24 is provided. A roller 25 is moved with the blocks 15 to depress the bottom run of the belt when necessary. An idle roller 5 lifts the length 6 of belting in order to give the necessary clearance in all positions for the folded-in portions of the belt. The adjustment of the roller 7 may be effected by rotatable rods having quick threads. Specification 331,101, [Class 78 (i), Conveyers. &c.], is referred to.
Patent GB-1004274-A (GB)
Title: Improvements in carrier bags and handles for attachment thereto
IPC: B65D33/10
Filed: 1963-04-22
Abstract: 1,004,274. Carrier bags. F. H. GATWARD. April 22, 1964 [April 22, 1963], No. 15825/63. Heading A4G. A paper or thermo-plastic carrier bag has moulded or extruded plastics handles 1, the ends 4 of which are equal to or wider than the width of the gripping part of the handle, and the ends are heat fixed to the bag walls. The ends may be covered with paper patches. The handle may be in the form of a strip, of solid circular crosssection or of a strip wound into a helix. Specification 1,003,100 is referred to.