baber/WOPTO huggingface dataset:
Patent GB-1033953-A (GB)
Title: Improvements in or relating to the formation of metal coatings
Inventor: SALT FREDERICK WILLIAM
IPC: C25D15/02
Filed: 1963-02-05
Abstract: <PICT:1033953/C6-C7/1> A continuously moving metal strip is electroplated from an electrolyte containing a metal and also electrophoretically coated by metal particles held in suspension in the electrolyte and deposited with the plating metal.  The two metals may be the same or different and the suspended metal if of 1 to 10 m size.  Cu, Fe, Zn, Al and Ni are specified. Preferably the evolution of hydrogen is supressed by using Redox type compounds e.g. iodine/iodide, fericyanide/feorocyanide or quinone/hydroquinone, or by adding reducible organic compounds e.g. nitrobenzene, acetaldehyde, and glyoxylic acid.  The deposited layer may be compressed, heated to form a coherent coating or may be stripped off, when a sulphided copper strips is used as substrate. A metal strip 12 passes between anodes 13 in a suspension of e.g. iron powder in FeSO4 solution containing also KCl, and (NH4)2SO4, kept agitated, and the coated strip passes under a roll 14 and a second pair of anodes 15. After compressing the coating by a roller and heating below the sintering temperature the strip passes through a second coating bath, and is compressed and heated again.
Patent GB-446991-A (GB)
Title: Improvements in and relating to hoods for motor vehicles
IPC: B60J7/06
Filed: 1935-02-13
Abstract: 446,991. Vehicle hoods. LONGMAN, W. C., 10, Charles Street, Regent Street, London.- (O.F.I.C.; 97, Boulevard Guovion, St. Cyr, Paris) Feb. 13, 1935, Nos. 4652 /35 and 4008 /36. [Class 108 (i)] In a vehicle collapsable hood having a rear upper panel the latter conforms to the streamline shape of the rear of the vehicle and is lowered into the back of the vehicle and raised therefrom as the hood is opened and closed. As shown, the collapsable hood comprising hoop sticks guided on rails has secured to its rear end a panel 8 having a roller 20 at each side adapted to run on the guide rail 1 and rollers 21 guided in slots 22 whereby the panel disappears into the vehicle body when the hood is opened. The hoop sticks 5 are provided with carriers guided on a rail 1 at each side by means of rollers. Certain of the carriers 3 are constrained to remain in contact with the guide rail by rollers 10, 11 whereas in the case of the carriers 4 the lower rollers 11 are omitted enabling the carriers 4 to move away from the guide rails 1 to permit folding of the hood cover 7. The second carrier is such a carrier and is linked by links 12, 13 to the carriers 3 and, as shown in Fig. 2, forms a cover for the recess into which the panel 8 disappears. The carriers 3, 4 are moved by means of a chain 14 at each side operated by sprockets 15 on a common shaft 16, the free ends of the chains being received in a container 17. In one of the Provisional Specifications the roof may be closed by relatively-slidable panels which are adapted to interengage.
Patent GB-150236-A (GB)
Title: A new or improved combined match, cigarette and cigar stand or support
IPC: A24F19/00
Filed: 1920-02-16
Abstract: 150,236. Grice, H., Goodwin, A., Grice, J. T., and Grice, J. Feb. 16, 1920. Match receptacles; match-box holders. - An earthenware or other base a is formed with vertical holes or recesses e into which cigars or cigarettes f are inserted ready for use, or the lighted ends are pressed to extinguish them. The base is formed with grooves g, recesses h, and a projection b to accommodate an open match-box, or a receptacle for matches, and may be provided with perforated lugs for attachment to a table, advertisements, and a match-striking surface.
Patent GB-706814-A (GB)
Title: Sound translating device
IPC: H04R1/18
Filed: 1952-02-22
Abstract: 706,814. Gramophone pick-ups. CHRISTENSEN, W. Feb. 22, 1952, No. 4742/52. Class 40 (4) [Also in Group XXXVIII] In a pick-up for lateral cut records of the type having a vibrating system oscillating about an axis perpendicular to the record and with the stylus arm extending radially with respect to the axis. and yielding in the direction of the axis under excess pressure, the stylus arm is made of a material for which where E is Young's modulus in kilograms/cm2, and O is the specific weight in grams/cm'. Materials satisfying this condition include aluminium, wrought iron, nickel, constantan, crown glass, duraluminium, iridium, steel, and magnesium. The pick-up is provided on its underside with an annular ridge laterally surrounding the stylus arm and having such height as to just allow the stylus point to project below its lower edge under the action - of the normal load on the stylus. The embodiment described, is a moving-armature pick-up in which the magnetic system comprises two parallel bar magnets 1, 2 (Fig. 1), a yoke 3, and pole-pieces 4, 5. The coil 7 is wound on core 6 in immediate continuation of which the armature 8 (Fig. 2) is arranged so as to extend into the air-gap. The armature is mounted on pivots 9 (Figs. 1, 2, 3) in rubber or plastic bearings 11, 12 (Fig. 2). The stylus arm 15 is mounted on the lower end of the armature 8. On the underside of the pick-up base plate 10 is secured a circular disc 17 (Fig. 3) of elastic material having a recess 18 in which the stylus arm is free to move. The edge of this recess constitutes a ridge 19 such that under normal stylus load the stylus point projects about onehundredth of an inch below the ridge. The angular movement permitted to the stylus arm by recess 18 is less than that required for the armature to make contact with the pole pieces.
Patent GB-972656-A (GB)
Title: Improvements in the production of adipic acid
Inventor: NEW RANDAL GEORGE ARTHUR
IPC: C07C51/31
Filed: 1962-02-07
Abstract: Adipic acid is produced by oxidising cyclohexane with a gas containing molecular oxygen in the presence of an oxy compound of boron capable of ester formation under the reaction conditions with cyclohexanol, removing unreacted cyclohexane, and further oxidising the product with nitric acid. The oxy compound may be meta, pyro or orthoboric acid, an anhydride or mixed anhydride of boric acid, an alkali metal borate, or a borate ester of an alcohol containing up to 12 carbon atoms. The oxy compound is added in an amount of from 0.01% to 10% of an equivalent, per mol. of cyclohexane, in the form of an aqueous solution. Specification 633,354 is referred to.
Patent GB-689562-A (GB)
Title: Improvements in and relating to grit blasting apparatus
IPC: B24C3/12
Filed: 1947-02-19
Abstract: 689,562. Sand blasting. SARGROVE ELECTRONICS, Ltd., and SARGROVE, J. A. Feb. 18, 1948 [Feb. 19, 1947], No. 4835/47. Class 60. [Also in Groups XXIX, XXX and XL (b)] An automatic grit-blasting machine comprises a nozzle 11 to which air is supplied under pressure, a connection 19, 24 between the nozzle 11 and a grit hopper 20, and a pressure sensitive device 25, 26 which reacts to abnormal conditions in the flow of grit. A machine for blasting panels such as are described in Specification 570,877, [Group XXXV], is automatically controlled by the sensing means 24 through a master control unit 13. Conveyer belts 33, 34 are started by a trolley switch or photoelectric cells 14 (see Group XL) when a sheet 37 is presented to the machine. When the sheet passes into the blasting chamber 31, which with other parts of the machine may be rubbercovered, further cells 16 actuate motors 17, 21 and 22, to produce the blast from nozzles 11, to rotate a cam 48 and oscillate the nozzles so that the surface of the sheet is covered and to draw off exhaust air. Air jets clean the sheets after leaving the blast chamber. The sheets may then pass electric or photo-electric scanning means (not shown), which, if they detect any untreated surfaces of a sheet, stop the machine. Unless a further sheet is closely following, the blast is then turned off by a time-lapse device. A separate conveyer 52 to avoid carry-over of grit passes the sheets from the machine. Used grit falls onto heating means 49 in hoppers 20. Grit is conveyed from the hoppers via a suction line 19, the suction being produced in each nozzle by an air-pressure line 18, Fig. 4. When either of the switches 25, 26 are actuated in abnormal conditions, a shaking device 27 is first actuated to endeavour to clear the fault and, if unsuccessful, the machine is stopped. The apparatus may be incorporated in a fully automatic machine as described in Specifications 689,561, [Group XXIX], and 689,563, [Group II], and may have lines from the control unit 13 interlinked with other units of the complete machine.
Patent GB-829629-A (GB)
Title: Improvements in or relating to dynamic braking systems for electric motors
IPC: H02P3/12
Filed: 1956-02-16
Abstract: 829,629. Control of D.C. motors. IGRANIC ELECTRIC CO. Ltd. (Cutler-Hammer Inc.). May 16, 1957 [Feb. 16, 1956], No. 4864/56. Class 38 (3). A series-wound motor having armature a and field winding f is associated with a master controller MS. When the controller is in its " off " position, closure of switch 12 energizes relays UV1, DBR1, so that relays 1RDB1, 2RDB1, and 1FDB1, 2FDB1, are energized to disconnect a dynamic braking circuit. Operation of the controller to its " forward " positions energizes coils 1M1, 1F1, and 2F1 to connect the motor to the supply-lines. If, when the motor is running in the forward direction, the relay UV1 drops out, relays DBR1 and 1M1 are deenergized, a circuit being completed across the armature a through rectifier R2, coils 1RDB1, 2RDB1, and contact DBR4, and a current due to the back-E.M.F. of the motor flows through this circuit. Thus contacts 2RDB2, 1RDB2, are held open, but contacts 1FDB2, 2FDB2, are closed because rectifier R1 prevents energization of coils 1FDB1, 2FDB1. A dynamic braking circuit for the motor is therefore established through field winding f and resistor 18. As the speed of the motor approaches zero, relays 1RDB1, 2RDB1 become de-energized to close contacts 1RDB2, 2RDB2, whereby the system returns to its neutral condition. Operation in the reverse direction is similar to that described, the dynamic braking circuit being completed through contacts 1RDB2, 2RDB2, and the contacts 1FDB2, 2FDB2 are held opened until the motor comes to a standstill. If the controller is returned to the " off " position for coasting operation, coil VR1 is energized by the back-E.M.F. and contacts VR2 are closed to energize coil 1M1. As a result, a circuit is completed through contacts TF2, resistor 17, field winding f, and contacts 1M2 to maintain the back-E.M.F. during coasting, and to ensure the establishment of a dynamic braking circuit if such should be called for. In a modification, the initiation of dynamic braking operation when the motor is operating in the forward direction causes coils PR1, PR2 of a polarized relay to be energized in the same direction, the coil PR2 being connected in a bridge rectifier circuit. Contacts PR3 are thus closed to energize coils 1RDB1, 2KDB1 and open contacts 1RDB2, 2RDB2. The dynamic braking circuit is therefore completed through contacts 1FDB2, 2FDB2. During reverse power operation, the current through coil PR1 is in the opposite direction, so that contacts PR4 are closed to energize coils 1FDB1, 2FDB1 during the dynamic braking operation. The dynamic braking circuit for the motor is then traced through contacts 1BDB2, 2RDB2. Specification 829,631 is referred to.
Patent GB-1101241-A (GB)
Title: Improvements in or relating to dry spinning cellulose ester filaments
IPC: D01F2/30
Filed: 1965-02-04
Abstract: Cellulose organic acid ester filaments are produced by dry spinning a solution in a voltaile solvent of the cellulose ester and 5 to 35% by weight (based on the weight of the cellulose ester) of a mixed organic acid ester of glucose.  The glucose ester may be completely esterified.  It may be an aliphatic non-crystallizing mixed ester of low molecular weight e.g. glucose acetate/propionate, acetate/isobutyrate or propionate/isobutyrate. The cellulose ester may be cellulose acetate diacetate, or triacetate.  Tobacco smoke filters may be made by collecting the filaments to form a tow, applying a plasticizer (such as triacetin) to the tow and forming the tow into a filter rod.  The tow may be crimped prior to the application of the plasticizer.
Patent GB-1072837-A (GB)
Title: Snow tire and insert therefor
IPC: B60C11/04
Filed: 1966-02-04
Abstract: 1,072,837. Traction-increasing tyre inserts. COORS PORCELAIN CO. Feb. 4, 1966 [Feb. 23, 1965], No. 4960/68. Heading B7C. Traction-increasing inserts 3 embedded in a tyre tread 2, each having an enlarged head 4 and a shank 5, are of a ceramic having a density of at least 3À9 g/cc. and containing at least 99% by weight aluminium oxide substantially all of which is in the form of randomly oriented crystals having an average maximum dimension not exceeding 10 microns. Additive oxides such as magnesium, titanium, chromium, nickel, vanadium or the rare' earth oxides are said to inhibit crystal growth of the aluminium oxide during firing. The head 4 may alternatively be of cylindrical form.
Patent GB-585467-A (GB)
Title: Improvements in glider launching systems
IPC: B64D3/00
Filed: 1944-03-17
Abstract: 585,467. Launching gliders. DEHN, F. B. (All American' Aviation, Inc.). March 17, 1944, No. 5054. [Class 103 (iii)] [Also in Group XXXIII] A glider 19 is launched into the air by means of a line 18 formed at the end with a loop 17 supported between vertical posts 14 in the ground, the loop being engaged by a hook 12 lowered from the towing aircraft 10, the line 18 which is wound on a winch 25 in the glider being first unwound freely and then retarded by a brake applied automatically to the winch, to apply an increasing tractive force to the glider. The towing line may be made of nylon, and the winch of the type described in Specification 574,741. The winch is provided with means enabling the glider pilot to shorten the length of towing line, the brake being geared to a ratchet wheel 33 controlled by pawls 34, 35, actuated by a pedal 27 and hand lever 26 respectively. At the conclusion of the launching operation the pilot releases the pedal 27 and operates the lever 26 to rewind any desired length of line on the winch. A train of gliders may be launched together or by successive passes of the towing aircraft. Specification 585,466 also is referred to.
Patent GB-1097093-A (GB)
Title: Method and apparatus for centrifugal screening
IPC: B04B3/04
Filed: 1965-02-05
Abstract: 1,097,093. Centrifugal strainer. DORROLIVER Inc. Feb. 5, 1965 [March 19, 1964], No. 5063/65. Heading BID. Paper pulp or sugar slurry passes from pipe 42 down centrifugal strainer drum 32, 33 having a relatively rotating screw 34, liquid passes through screen 33 into annular chambers 19, 20, 21, wash liquid is delivered by channels 45, 46 to apertures 41 in screw 34 and liquid is recirculated from chamber 21 to apertures 50 in screw 34 and thence a variable fraction is circulated from chamber 20 and added to incoming slurry, Fig. 1 (not shown) illustrates the circuit involved with pumps (24, 27) and valve (31) for the wash liquid recirculation, also how the strainer is connected in series with filter press (13), evaporators (14), cooler (16). Fig. 2a (not shown) illustrates the internal channels in the screw and also how the screw is attached to its drive shaft by a screwed collar (17c), whereby the screw is axially adjustable to vary its spacing from screen 33.
Patent GB-490756-A (GB)
Title: Improvements in or relating to the oxidation of sterols
IPC: C07J75/00
Filed: 1937-02-19
Abstract: Bis-nor - cholenic acid and acyl derivatives thereof are produced by the oxidation by means of ozone of crude mixtures of o-acyl derivatives of phytosterols such as the sterols of soya bean oil or calabar bean oil, the nuclear double bonds of the sterols being intermediately protected preferably by bromination. The preferred embodiment of the process comprises the acylation of the crude mixture of phytosterols by acetic acid followed by bromination and treatment with ozone.  After oxidation the protective bromine is removed and the nuclear double bond re-established by treatment with zinc and acetic acid.  In an example a 5 per cent ethereal solution of phytosterol acetate derived from soya bean oil is treated with bromine and then ozonized.  The bromine is removed with zinc and acetic acid, water is added and the product taken up with ether. Acetic acid is removed by washing with water and the sodium salt of 3-acetoxy-bis-norcholenic acid is precipitated on the addition of caustic soda.  The sodium salt is suspended in water, acidified, and extracted with ether.  On removal of the ether and recrystallization from aqueous acetone pure 3-acetoxy-bis-norcholenic acid is obtained. Pure sitosterol acetate may be recovered from the first ether extract. Specification 453,773 is referred to.
Patent GB-212261-A (GB)
Title: Method and means for the prevention of listening in telephonic and telegraphic intercourse by means of electric waves and for multiplex intercourse by means of electromagnetic waves
IPC: H04J3/04
Filed: 1924-02-28
Abstract: 212,261. Kramolin, L. L. de. March 3, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Secret and selective signalling systems; multiplex systems.-The plate of an electric discharge tube is divided into segments 1 - - 4, Fig. 3, which are traversed in succession by the cathode stream, the path of the stream through the tube being controlled by an external rotating field derived from an harmonic of the signal frequency and maintained in synchrony at the transmitting and receiving stations. Each plate segment is connected to a separate receiving circuit T<1> - - T<4>, whereby four separate signals can be received simultaneously, the interval between successive impacts of the cathode stream on any particular segment being super-audible. At the transmitting end, the discharge tube is provided with four separate grids, each fed by its own microphone under the control of the external rotary field. To ensure secrecy, disturbing noises may be imposed on the circuits not used for signalling; or the plate segments may be arranged asymmetrically. A mercury vapour lamp may be used in place of a discharge tube.
Patent GB-337319-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/36
Filed: 1930-02-17
Abstract: 337,319. Electrolux, Ltd., (Assignees of Inventia Patent-Verwertungs-Ges.). Feb. 18, 1929, [Convention date]. Vacuum cleaning-apparatus. - In a portable vacuum cleaner, the nozzles and other accessories e, f, g, i are carried in pockets or clips h arranged on the exterior of the casing, so that they form a portable unit with the cleaner.
Patent GB-348225-A (GB)
Title: Improvements in tunnel ovens
IPC: F27B9/30
Filed: 1930-02-17
Abstract: 348,225. Gas-fired tunnel kilns. DANIELS, J., 28, Wandastrasse, Essen, Germany. Feb. 17, 1930, No. 5259. [Classes 51 (i) and 51 (ii).] In a tunnel kiln having gas and air regenerators along its side walls, the gas and air discharge ports alternate with one another, and are sufficiently close to produce a continuous band or strip of flame. The regenerator chambers are arranged along the length of the tunnel at both sides with pairs of gas chambers 11, Fig 3, alternating with pairs of air chambers 12. At their lower ends each pair of chambers is in communication with a common inlet and outlet flue 13, and at its upper end each chamber leads to a distributing flue 15 or 16 connected to gas and air ports in the walls of the tunnel by the flues 17, 18. These ports alternate and produce a sheet or strip of flame, along the length of the tunnel. Control of the heating is effected by dampers 19 on the flues 17, 18. In a modification, Figs. 4, 5 and 10, the regenerators are narrower, and are connected directly to the wall ports. Preferably each regenerator supplies three ports, one through the downcast 18, Fig. 10, and the other two through a flue 29, which is bent around the flue 18 of the adjacent regenerator, so that the alternation of gas and air ports is maintained. The regenerators are connected at their lower ends in groups of two or more by the flues 25, but if desired individual inlet connections 27. may be provided. Rich gas may be supplied for combustion through pipes 32 in the walls between the regenerators, and an air valve 34 is fitted to each pipe so that air can be admitted for burning out carbon deposits. Control is effected by dampers 20, 26 at the upper and lower ends, respectively, of the regenerators.
Patent GB-163141-A (GB)
Title: Improved mechanism for operating the brakes of vehicles
IPC: B61H13/02
Filed: 1920-02-21
Abstract: 163,141. Rivitt, W. T., and Dickinson, A. Feb. 21, 1920. Force-transmitting mechanism.-Relates to brake mechanism, particularly for tramcars, of the kind comprising at each end a pair of bars 1, 2 of which the bar 1 carries brake blocks and the bar 2 is connected to the similar bar at the other end of the vehicle. The bars of each pair are adapted to be forced apart to apply the brake by a pair of spaced thrust members mounted upon a rotatable carrier. As shown, the thrust members comprise bolts 12, with antifriction rollers 13 secured to a pair of discs 14, 15 which form the carrier and one of which is formed with or has riveted thereto, the actuating-lever 16. The bolts 12 engage hard blocks 5 which are fixed to the bars 1, 2, and have curved surfaces whereby the bolts and carrier are kept in position in relation to the bars. The bar 1 may have a pair of plates 3 for engagement with a similar pair of plates 4 on the bar 2 to keep the bars parallel.
Patent GB-1379977-A (GB)
Title: Method and apparatus for producing chloroformates
IPC: C07C68/02
Filed: 1972-02-04
Abstract: 1379977 Method and apparatus for production of chloroformates ESZAKMAGYARORSZAGI VEGYIMUVEK 4 Feb 1972 5280/72 Heading C2C   Chloroformates are prepared by continuously introducing into a reactor, in a concurrent flow and in an atomized state, a C 1-20  alcohol (corresponding to the desired product), and phosgene, and recovering the product. In the Fig. the vertical reactor 1 comprises a reaction zone 2, a packed column 3, a condensation zone 4, and a removal zone 5. Alcohol and phosgene are introduced through atomizer 6 to zone 2 which may be heated by coil 7 and jacket 8, while U.V. or other energy is supplied via light source 9. Column 3 with heating jacket 10 has a charge 11 of large surface area such as glass wool. Zone 4 may be cooled by means of coil 12 and jacket 13. Zone 5 includes a pulsing device 14 such as a positive displacement pump or membrane pump for reducing throughput time of reactor 1. An outlet 15 provides for removal of HCl and outlet 16 provides for removal of chloroformate end product.