baber/WOPTO huggingface dataset:
Patent GB-104173-A (GB)
Title: Process of Dissolving Cellulose.
IPC: C08B1/00
Filed: 1917-01-31
Abstract: 104,173. Marks, E. C. R., (International Cellulose Co.). Jan. 31, 1917. Cellulose solutions, and processes for making filaments therefrom.-Cellulose is dissolved in a mixture of aqueous hydrochloric acid and another concentrated inorganic acid, such as sulphuric or phosphoric. The resulting solutions may be squired through orifices into suitable coagulating- baths. Examples are given of the treatment of cotton and comminuted wood; the process may be applied to oxycelluloses, hydrocelluloses, and liquocelluloses.
Patent GB-371407-A (GB)
Title: Improvements in and relating to coking retort ovens
IPC: C10B5/02
Filed: 1931-01-17
Abstract: 371,407. Coke ovens. KOPPERS CO., Koppers Building, Pittsburg, U.S.A.-(Assignees of Ackeren, J. van ; Koppers Building, Pittsburg, U.S.A.) Jan. 17, 1931, No. 1636. Convention date, Jan. 28, 1930. [Classes 51 (i) and 51 (ii).] In a horizontal coke oven comprising a series of alternately disposed coking-chambers and heating-walls with regenerators arranged beneath and parallel to the heating-walls, the regenerator unit for each heating-wall comprises a series of groups of regenerators of two different sizes extending transversely of the battery in parallel with the oven chambers and heating-walls, the larger regenerators being preferably substantially double the capacity of the smaller ones. As shown in Fig. 1, each heating-wall is provided with a series of vertical flame flues 15 connected at their tops in pairs whereby one flue operates as a return flue for the products of combustion from the flue to which it is connected. The larger regenerative chambers 22 of each group supply gas to adjacent pairs of flues 15 while the smaller chambers 20 of each group supply air to one flue of each adjacent pair. In operation, gas and air are supplied to alternate groups of regenerators the intermediate groups being traversed by the waste gases. Fig. 4 shows diagrammatically the course of the gases through the regenerators and flame flues 15. Gas from the conduit 24 is led to large chambers 22 of alternate groups and air from the conduit 25 passes to the small chambers 20 of alternate groups, the waste gases being led from the intermediate groups by conduits 26, 27. Reversal of the air or gas and combustion products is effected by a valve arrangement shown in Fig. 5, whereby gas from the main 11 may pass through the valves 44, 35, 41, 42 to either of the flues 24, 26 leading to the large regenerators 22 or waste gases may be led from the flue 24 or 26 to the passage 38. Air inlet valves 43 are provided to permit the device to be applied to the air inlet flues of small regenerators 20. The flame flues are adapted to be supplied with rich gas from passages beneath the heating-wall. The side walls of adjacent regenerator units are separated by expansion joints which extend downwards from the centre of the coking-chambers to the bottom of the oven structure.
Patent GB-210274-A (GB)
Title: Improvements in or relating to film-feed mechanism for kinematographs and the like
IPC: G03B1/38
Filed: 1923-01-19
Abstract: 210,274. Higginson, K. Jan. 19, 1923. Intermittent toothed gearing. - In Genevamechanism for kinematograph and like apparatus, wherein the axis of a rotary pin-carrier is rotatable about a. second axis so as to produce a quick movement, locking means is provided which is effective until a part of the pin has entered a slot and is again effective before the pin has entirely left the slot. As shown, the axis of the pin-carrier 2 is mounted in a boss 6 on a constantly rotated disc 1. A pinion 7 on the axis of the carrier 2 engages a fixed spur-wheel 8 to rotate the carrier 2 relatively to the disc 1. A locking flange 4 is provided on the disc 1 and is slotted to accommodate the carrier 2 and to permit passage of the pin 3 and the arms of the cross 5. The corners of the arms of the cross are in part cut away so as to form a second cross 9 which is locked by the flange 4 until the pin 3 enters a slot, a recess 4<b> in the flange then permitting the cross to be turned. The mechanism is so constructed that. when the pin enters a slot, the slot is tangential to the path of the pin.
Patent GB-1187312-A (GB)
Title: Improvements relating to the Stabilisation of Electrical Power-Supply Systems
Inventor: HARMER HAROLD MARTIN
IPC: G05F1/59
Filed: 1968-01-12
Abstract: 1,187,312. Automatic control of current and voltage. HARMER & SIMMONS Ltd. Sept. 5, 1968 [Jan.12, 1968], No.1822/68. Heading G3R. A D. C. load 1 is supplied from an A. C. source 2 by way of two circuits in parallel, the first circuit being capable of supplying the major proportion, e.g. 95% of the maximum load current and comprising a thyristor or transductor arrangement 6, a transformer 7 and a rectifier 8 and the second circuit being capable of supplying a small predetermined proportion, e. g. 5% of the load current and comprising a conventional series transistor regulating circuit 3, 4, 5, 9, 10, 11; a tapping on a resistor 12 in the emitter circuit of transistor 5 is connected to the control terminal of the arrangement 6, which is thus controlled to conduct when, assuming the above numerical example, the output of the transistor 5 is equal to 5% of the maximum load current. When the load current increases the arrangement 6 is then controlled to pass more current whereby the current through transistor 5 is maintained at the said value of 5% of maximum full load current. Thus variation in the output voltage caused by transients of the order of Œ5% of maximum full load current can be compensated-for by the high-speed response of the relatively lightly loaded transistor regulator only, with consequent increase in the efficiency of the system as a whole. The second circuit, including the series regulator, may be replaced by a shunt transistor regulator circuit connected across the load Figs.3 and 4 (not shown), in which case the arrangement 6 must be capable of supplying, say, 105% of the maximum load current. The system may be modified to provide constant current rather than constant voltage control.
Patent GB-1115437-A (GB)
Title: Flux coned welding electrode
Inventor: LEE ROBERT HEGENBERGER
IPC: B23K35/368
Filed: 1967-01-13
Abstract: A consumable composite electrode for use in carbon dioxide gas shielded arc welding comprises a mild steel sheath and a flux core consisting of by weight:  .MgO.6.5 - 15% .TiO2.35 - 50% .Na3AlF6.2 - 6% .Fe3O4.0 - 15% .FeMnSi.10 - 20% .Fe.15 - 30% .Zircon. .sand.5 - 10% .Na or K. .silicate.0 - 5% the flux material forming 18 - 24% by weight of the electrode
Patent GB-1407162-A (GB)
Title: Alkylation of isoparaffins
IPC: B01J27/00
Filed: 1973-01-15
Abstract: 1407162 Alkylating isoparaffins PHILLIPS PETROLEUM CO 15 Jan 1973 [13 Jan 1972 22 Sept 1972] 1926/73 Heading C5E Isobutane and/or isopentane are alkylated with propylene, a butylene and/or an anylene in the presence of a HF catalyst modified with 5-35 wt. per cent ethyl fluoride based on the total catalyst weight, the amount of ethylene present, if any, not exceeding 5 wt. per cent of the total olefin feed. The ethyl fluoride may be added to the reaction zone as such or may be formed in situ by adding ethylene. The alkylation may be carried out at 35-200‹ F., at a pressure sufficient for liquid phase operation, e.g. at least 160 p.s.i.g., with an isoalkane : olefin molar ratio of 2 : 1-100 : 1.
Patent GB-667865-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/32
Filed: 1950-01-25
Abstract: 667,865. Suction cleaners. HOOVER, Ltd. Jan. 25, 1950. [Feb. 15, 1949], No. 1976/50. Class 8 (i) In a suction cleaner of the handle propelled type comprising a brush 30 within the nozzle 13 and rotated through a belt 32 from a fan shaft pulley 23, the brush is raised relative to the nozzle out of contact with the carpet by means which also slackens the belt 32 sufficiently to ,render the drive inoperative. The brush shaft 38 is mounted at the ends of arms 35 pivoted to the nozzle at a shaft 36 and is raised by depressing a lever 45 rigid with the pivot shaft 36 on lifting the handle 61 to its storage position thereby allowing a projection 46 to abut the lever 45, e.g. prior to the introduction of a converter. Nozzle height adjustment is effected manually by a nut 54 which controls the height above the floor of the rear wheels 12. The handle 61 is held in its storage position by engagement of a roller 57 carried by a biased arm 56 -in a recess 59 of a.sector 60 secured to the motor fan casing 10 which is integral with said handle 61.
Patent GB-1086902-A (GB)
Title: Improvements in or relating to primary or secondary electric cells
IPC: H01M50/466
Filed: 1965-01-15
Abstract: 1,086,902. Electric batteries. SOCIETE DES ACCUMULATEURS FIXES ET DE TRACTION. Jan. 15, 1965 [Jan. 18, 1964], No. 2011/65. Heading H1B. An electrode 1 (Fig. 1, not shown) in the form of a band or linked electrode members is inserted into a longitudinally folded separator 2 and the subassembly comprising the separator and electrode is superposed on a second electrode 3 similar to electrode 1. Electrode 3 is folded about an axis 3d perpendicular to the longitudinal axis of the separator and then folded back on itself about an axis 3e. Electrodeseparator sub-assembly 1, 2 is now folded over the electrode 3 about an axis perpendicular to its longitudinal axis and perpendicular to the fold axes 3e and 3d of electrode 3, so that the electrode 3 is interleaved between the subassembly. These operations are repeated to provide an assembly comprising interleaved concertina folded electrodes. Due to the double folding of electrode 3 at 3e, each electrode subassembly may simply be slid away from the other for servicing without the need for unfolding. The longitudinal fold of separator 2 may be waterproofed. The separator may be porous, microporous, or semipermeable and may comprise one or several layers. Regenerated cellulose or polyvinyl alcohol may be used for silver electrodes. In an accumulator with an oxygen absorbent negative electrode an expanded metal backing is provided for the negative electrode.
Patent GB-227633-A (GB)
Title: A billiard table lampshade
IPC: F21V1/00
Filed: 1924-01-25
Abstract: 227,633. Parks, F. G. Jan. 25, 1924. Shades; reflectors.-The lower edge of the framework of a silk billiard-table lamp shade C is provided with an inner flange B for supporting a removable reflecting card lining A. The flange B may be made of metal or wood, or from two wire rings bound together by a material such as silk.
Patent GB-563227-A (GB)
Title: Improvements in drag scrapers
IPC: E02F3/60
Filed: 1943-02-08
Abstract: 563,227. Drag scrapers. INTERNATIONAL COMBUSTION, Ltd., and ENNALS, E. G. Feb. 8, 1943, No. 2050. [Class 78 (iv)] [Also in Group XXI] In a reversible drag scraper, a transverse thrust bar is secured to links pivotally connected to the sides of the scraper bucket. As shown, the thrust bar e, preferably tubular, is connected to links f to which the haulage chains g, g<1> are attached, the links f being pivoted to pairs of links j pivoted to the bucket sides.
Patent GB-1387214-A (GB)
Title: Polymerization and copolymerization of lactams
IPC: C08G69/20
Filed: 1973-01-15
Abstract: 1387214 Lactam polymerization catalysts VYSOKA SKOLA CHEMIKO - TECHNOLOGICKA 15 Jan 1973 [14 Jan 1972] 2077/73 Heading C3R Lactam polymerization is catalysed by alkali metal substituted alkoxyhydroaluminates where Me is alkali metal, a is 1-3, Z is R is C 1-4  alkyl, A is -CR<SP>1</SP>R<SP>2</SP>-(CH 2 ) n -, R 1  and R 2  are H or CH 3 , n is 1-6, X is O or N, and m is 1 when X = O and 2 when X = N. The catalyst can absorb traces of water which could otherwise adversely affect polymerization. The lactam-catalyst mixture can be stored, e.g. in sealed tins, at room temperature for a long time. For use, it is melted and an activator, e.g. N-acetyl or N-benzoyl caprolactam, is added and the mixture is poured into a preheated mould.
Patent GB-1096651-A (GB)
Title: Control apparatus and method
Inventor: HARRISON JAMES ARTHUR
IPC: H03M1/00
Filed: 1964-01-17
Abstract: 1096651 Electric selective signalling DAVY & UNITED ENGINEERING CO Ltd 18 Jan 1965 [17 Jan 1964] 2098/64 Headings G4D D7X D6Y D6C1 D6C2 D6L D1D11 and D1D9G Apparatus for monitoring the position of an object comprises at least two detectors arranged to detect the passage of the object, a pulse generator for emitting a pulse for each unit movement of the object, a counter for counting the pulses, and means for checking the number of pulses emitted by the generator between passage of the object past successive detectors and for correcting the count of the counter if said number does not correspond to the distance between successive detectors. Thirty-five photo-cells ("detectors") spaced at one-metre intervals along the path of a beam in a saw mill provide a coarse indication of the beam position which is compared with the coarse part of the desired position in a metres coincidence unit. When the coarse difference is 9 metres, a roller is lowered into contact with the beam and actuates the pulse generator to produce a pulse for each 2 mm. travel of the beam, on a forward or reverse line depending on the direction of travel. When the coarse difference is 7 metres, the forward pulses are fed to a counter the count of which is compared to the fine part (cm.) of the desired position in a centimetres coincidence unit. When the latter indicates that the position is exactly 7 metres from the desired position, the forward pulses are gated to the counter referred to in the first sentence above. This counter controls the motors driving the roller tables supporting the beam, via a digitalto-analogue converter, so as to bring the beam to rest at the desired position. The pulses on the reverse line from the pulse generator are always fed to a subtract input of the last-mentioned counter without hindrance. Possible slip of the roller is corrected for using two checking units alternately. Each checking unit comprises a counter which receives the forward pulses starting at the time of arrival (via the metre coincidence unit) of a signal from one of the photocells. When the count reaches 500 a first flip-flop is set. When the signal from the next photo-cell arrives a second flip-flop is set. When both have been set, input to the counter is terminated and the counter and flip-flops are reset. In the absence of roller slip, the two flip-flops will be set simultaneously, but otherwise for as long as one flip-flop is set and the other is not, additional pulses (obtained by delaying the forward pulses) are fed to the add or subtract input of the counter controlling the D/A converter, depending on which of the flip-flops is set.  The first of the photo-cells resets the system on detecting the trailing edge of the beam.
Patent GB-694752-A (GB)
Title: Improvements in and relating to collapsible supports or stands
IPC: A45F3/44
Filed: 1951-01-29
Abstract: 694,752. Stands. HARDY, C. R. M. Jan. 25, 1952 [Jan. 29, 1951], No. 2166/51. Class 52(iii) A stand for picnic purposes comprises a body portion 1 with a ground-spike 2 and arms 9 pivotally and slidably mounted on the body so that they can be radially extended to hold a plate or dish 20 or collapsed for storage within the body 1.
Patent GB-658969-A (GB)
Title: Improvements in and relating to the manufacture of finely divided preparations of calcium compounds
Inventor: KERSHAW ARTHUR
IPC: C04B2/04
Filed: 1948-01-23
Abstract: Dry finely-divided calcium compounds are prepared directly by adding to calcium or calcium-magnesium oxide a substantial part only of the water required for hydration and after partial hydration has effected a substantial rise in temperature, adding the remainder of the water required for complete hydration in which is dispersed or dissolved a substance adapted to coat, combine or otherwise associate with the particles of the calcium or calcium-magnesium oxide.  The added substance may be a soap wax, glues, polysaccharides, soluble extracts from caustic or sulphite paper making, thermoplastic or phenolic resins or organic or inorganic silicates.  The first stage hydration preferably entails a rise in temperature to 180-212 DEG  F.  Examples relate to the employment for the second part of the hydration of (1) ethyl silicate containing triethanolamine as emulsifying agent dispersed in an aqueous solution of neutralized caustic lignin colloid; (2) polyvinyl acetate emulsion dispersed as in (1) above; (3) an aqueous solution of sodium silicate to which has been successively added a water-soluble cresylic formaldehyde resin and a saturated solution of boric acid.  Colouring matters may also be added at any stage of the process.
Patent GB-136358-A (GB)
Title: Improvements in or relating to Wind Screens.
Inventor: MORRISS FRANK EDWARD
IPC: B60J1/06
Filed: 1919-01-29
Abstract: 136,358. Morriss, F. E. Jan. 29, 1919. Wind-screens. - Relates to wind-screens for motor and like vehicles, of the type comprising upper and lower sections f, d connected to standards formed of telescopic tubes b, a so that the upper section can be raised or lowered in front of the lower section by means of rack-andpinion or similar mechanism. According to the invention, the telescopic tubes a, b are provided with integral flanges c, e grooved to receive the glass sections d, f. The inner tubes b are provided with racks engaged through slots in the outer tubes a by two pinions h mounted on a transverse shaft g so as to be operated simultaneously.
Patent GB-269972-A (GB)
Title: Improvements in the construction of electrolytic or valve rectifiers and filtering apparatus for obtaining d.c. from a.c. supply mains for wireless receiving or transmitting apparatus and the like
IPC: H02M7/06
Filed: 1926-01-27
Abstract: 269,972. Mathisen, A. Jan. 27, 1926. Vacuum apparatus, arrangements of; electrolytic cells, arrangement of; transformers. - A current-rectifying device, particularly for wireless purposes, comprises a transformer a the secondary g of which has a central tapping h and a number of symmetrically arranged tappings connected to two sets of contacts k, m over which passes a double-armed switch. The arms o p of the switch are connected to valves q or electrolytic rectifiers. In the arrangement shown the switch arms are connected to the plates of the valves and the tapping h to the filaments through a separate portion r of the secondary of the transformer, which furnishes lighting current for the valves. The central tapping may be replaced by connections from the ends of the secondary to the plates of the valves, the tappings being in the middle portion of the secondary and the two switch arms connected to the negative side of the circuit. Arrangements comprising two switches and two sets of tappings are also described. The rectified current may be smoothed in known manner by means of a choke u and transformers v<1>, v<2>. A convenient constructional arrangement of two switches is shown in Fig. 4. The transformer b, chokes u- and electrolytic rectifiers g are contained in a single casing, a magnetic screen 10 separating the chokes from the transformer. The control studs are on the front of the casing and the switch-arms move over dials. The condensers v<1>, v<2> are arranged in the walls of the casing.
Patent GB-140159-A (GB)
Title: Improvements in and relating to stop valves
IPC: F16K39/02
Filed: 1919-01-30
Abstract: 140,159. Hunter, S., and Mackay, J. S. Jan. 30, 1919. Lift valves.-A lift stop-valve, of the kind provided with a balancing-piston controlled by a pilot valve seating on the main valve, is constructed so that the pilot valve can be easily withdrawn from the main valve. The piston d is formed as an extension of the valve b and is provided at its outer end, facing the cover of the valve, with an inwardly-directed flange providing an opening of sufficient size for the introduction or removal of the pilot valve h, this flange having secured thereto, as by studs, a detachable bridge or cover l to close the opening. The actuating- spindle c has a collar j adapted to engage the cover l to open the main valve after the auxiliary valve has been opened and the space behind the piston vented.
Patent GB-677000-A (GB)
Title: Improvements in or relating to tamping machines
IPC: E01B27/16
Filed: 1950-01-30
Abstract: 677,000. Packing railway ballast. CIFARELLI, L., CIFARELLI, B., and CIFARELLI, F. Jan. 30, 1950. [Feb. 4, 1949] No. 2377/50. Class 104 (ii). [Also in Group XXIII] A machine for tamping the ballast of railway tracks carries two series of mechanical hammers 29, 30 the angular positions of which can be changed by alteration of the positions of the screwed members 46, 47 on screws 13 ; and the vertical positions of which can be adjusted by a cable 55 (56) carried by winches in casing 200, and operable in concert with, or independently from, the screws. 13 An auxiliary track 22, at right angles to the permanent way, can be laid on the way and the machine can be run onto a track clear of the way by means of rollers 28 to permit the passage of a train. The hammers 29, 30 are operated through telescopic shafts 12, 12A (see Group XXIII).
Patent GB-510010-A (GB)
Title: Manufacture of 5:6:7:8-tetrahydroanthraquinone derivatives containing nitrogen and of leuco-5:6:7:8-tetrahydroquinizarin
IPC: C09B1/50
Filed: 1938-01-25
Abstract: 510,010. Dyes. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). Jan. 25, 1938, No. 2382. [Classes 2 (iii) and 15 (ii)] Products of the formula where X is'OH or NHR, where NHR is the radical of a primary amine, are made by reacting leuco-5.6.7.8-tetrahydroquinizarin with a primary amine or mixture of amines and oxidizing the leuco-compound so obtained. Also according to the invention, leuco-5,6,7,8-tetrahydroquinizarin is made by hydrogenating a quinizarin ether in 'presence of a metal catalyst to give a hexahydroquinizarin ether, which is saponified, e.g., with sulphuric or phosphoric acid. The products of the above formula may be sulphonated and dye wool or acetate artificial silk blue to green tints. Amines specified include benzylamine and amines containing sulpho groups. The reaction is preferably conducted in a diluent, such as alcohol or excess amine, below 200‹C., and sometimes in presence of boric acid, followed by oxidation with air sometimes in presence of piperidine or ferric chloride, e.g., in glacial acetic acid. In examples, leuco-5,6,7,8-tetrahydroquinizarin is reacted with the following amines, followed by oxidation and in some cases sulphonation of the products : (1) p-toluidine, (2) 4-aminodiphenyl, (3) 4- cyclohexylaniline, (4) ethylamine or methylamine, (5) hydroxyethylamine, (6) cyclohexylamine in about equimolecular proportion, or (7) in excess. (8) mesidine, (9) 2-amino-1.2.3.4- tetrahydronaphthalene, the diamino body being obtained in every case except (6), and with (10) a mixture of ethylamine and hydroxyethylamine to give 1-ethylamino-4-#-hydroxyethylamino - 5.6.7.8 - tetrahydroanthraquinone, (11) p-n-butoxyaniline, '(12) p-n-butylaniline, (13) a mixture of methylamine and hydroxyethylamine to give 1-methylamino-4-hydroxyethylamino - 5,7.6.8 - tetrahydroanthraquinone, (14) p-tert.-butylaniline. In further examples, quinizarin dimethyl or diethyl ether is hydrogenated under pressure in presence of a nickel catalyst, followed by saponification with concentrated sulphuric acid.