baber/WOPTO huggingface dataset:
Patent GB-1016332-A (GB)
Title: Improvements in or relating to electric interrupter switch mechanisms
Inventor: MIDGLEY ALBERT HENRY
IPC: B60Q11/00
Filed: 1961-06-09
Abstract: 1,016,332. Flashing indicators. MIDGLEY HAMER Ltd. Sept. 7, 1962 [June 9, 1961; July 7, 1961], Nos. 20949/61 and 24684/61. Heading G4Q. In an electric interrupter switch mechanism for operating flashing signal lamps in a motor vehicle and a pilot lamp for indicating whether the flashing signal is operating, the circuits of the signal and pilot lamps are controlled by a switching device operated by a relay whose energizing circuit 10 is controlled by a condenser 9 in parallel with the energizing coil and adapted to be alternately charged and discharged on the closure of a controlling switch 19 so as to bring about the intermittent operation of the signal and pilot lamps. The arrangement is such that automatic quenching of any arc formed between the contacts of the switching device is effected. In one embodiment (Fig. 1) the switch arrangement consists of a two-way switch having a moving contact 1 normally closed with contact 2 connected to the pilot lamp and making connection with contact 3 connected to the indicator lamps when the relay is energized. On closing the operating switch 19 the battery potential is applied to the split relay coil 11 such that currents flow both ways until the condenser 9 is charged. When this is accomplished the currents in the coil cease to cancel and the relay operates to close the indicator lamp circuit and allow the condenser to discharge through the coil 10, holding on the relay. When it is discharged the relay returns to its normal position, closing the pilot lamp circuit, and the sequence repeats. A second embodiment (Fig. 2, not shown) is described, employing only a one-way switch operated by the relay, with the circuit arranged so that the pilot lamp is short-circuited when the relay operates to close the switch, but is energized when the switch is open.
Patent GB-1180392-A (GB)
Title: Improvements in Pipe Joints
Inventor: DAVIES ERIC GORDON
IPC: F16L58/18
Filed: 1966-05-11
Abstract: 1,180,392. Pipe couplings. BTR INDUSTRIES Ltd. 5 May, 1967 [11 May, 1966], No. 20951/66. Heading F2G. A lined pipe or pipe coupling 13, extending through a hole 12 in a plate or tube 10 and the lining 11 thereof, has an external flange 15 around which the lining 14 is turned to abut against the lining 11, and the flange is pressed, as by a nut 16 screwed on to the pipe or coupling 13, towards the plate or tube so that the two linings are gripped together. The pipe or coupling may have a flange 18 screwed thereon.
Patent GB-438671-A (GB)
Title: Photographic objective
IPC: G02B13/00
Filed: 1934-07-18
Abstract: 438,671. Lenses. TRONNIER, A. W., 50A, Salinenstrasse, Kreuznach, Germany. July 18, 1934, No. 21000. Convention date, Oct. 16, 1933. [Class 97 (i)] An objective corrected for spherical and chromatic aberrations, coma, astigmatism and field curvature consists of an asymmetrical dispersive component L2 between two asymmetrical collective components L1, L3, the air spaces d1, d2, being unequal and each having a dispersive effect and the longer space d2 being on the side of the more strongly curved surface R4 of the lens L2. The power of the lens L1 is at least twice that of the system and the combined power of the lenses L1, L2 is numerically not greater than 0À4 times the power of the system. The system is characterized by such a distribution of the " effects " of the several surfaces that the ratio #<3>F1 to #<3>F6 lies between 11À2 and 22.4, the ratio #<3>v4 to #<3>F6 lies between 5.6 and 11.2, and the ratio #<3>F6 to #<3>F3 lies between 2.8 and 5.6, where #F1, #F3, and #F6 are respectively the effectsof the surfaces R1, R3, and R6 and #V4 is the total effect of the three surfaces preceding the surface R4, i.e. #V4 = #F1 + #F2 + #F3. The aperture is not less than f/5. Data are given for a system having an aperture of f/4À5.
Patent GB-186486-A (GB)
Title: Improvements in and relating to apparatus for the vulcanization of articles of rubber, rubber substitutes and the like
IPC: B29C35/00
Filed: 1921-08-08
Abstract: 186,486. Hawthorn, H., and Huntley, H. A. Aug. 8, 1921. Vulcanizing, cores, moulds, pressing-devices for. - Apparatus for vulcanizing simultaneously two sheets or other articles of rubber comprises a two-part mould with heating means, each part of which is provided with a recess of the shape of the article to be produced, means for securing the parts of the mould together, and a resilient hollow receptacle in the cavity formed by the assembled mould capable of being distended to force the rubber into the mould. Two moulds a a<1>, Fig. 1, for moulding sheets of rubber for use on roadways as described in Specification 182,640 with a surface a<2> of the pattern required on the sheet, and means b, b<1> for holding adjuncts desired to be embedded in the sheet, distance-pieces e<1>, and covering-plates e, are charged with rubber and placed in contact as shown and enclose a resilient bag d which, on the admission of steam through the pipe d, is distended and forces the rubber into the recesses of the moulds. Preferably each mould part is provided with independent steam spaces a<3>, to avoid the necessity of a steam-tight joint between the parts. A suitable means for manipulating the mould parts is shown in Fig. 3 in which the upper mould a is mounted in trunnions a* on a, trolley f running on rails f<1>. Rubber and the cover-plate e are placed in the mould a, which is then turned over, and run into position over the stationary lower mould a<1>, lowered by manipulating-screws f<2>, and clamped by the linked bars g. The resilient bag may be replaced by a U-packing which makes a steam-tight joint with the cover-plates e.
Patent GB-1445843-A (GB)
Title: Fencing of excavations
IPC: E01F13/02
Filed: 1973-05-03
Abstract: 1445843 Fencing NORTH WESTERN ELECTRICITY BOARD 24 April 1974 [3 May 1973] 21068/73 Heading E1B A fence comprises a plurality of base plates 12 each adapted to releasably receive one of a plurality of posts 10 and a plurality of rails 11 where each post has at least one slot 24 to enable a respective end of one or more rails to be removably inserted therein. The rails and posts are hollow box-section plastics members and the rails are braced by internal webs. The rails are secured to the posts and the posts to the bases by pins mounted on chains. A lamp bracket 20 may be secured to the upper end of each post. The rails are preferably extruded in white plastics and have bands of red adhesive tape 13 secured thereto.
Patent GB-211177-A (GB)
Abstract: 211,177. Balanced Engine Syndicate, Ltd., and Kerr, R. P. Sept. 8, 1922. Regulating.-In the two-stroke engine shown in Fig. 4, air entering by the port F passes through the liner passage a', around the piston zone B<1>, through the piston trunk passage b<2> and ports b<1>, to the piston interior. At the same time, mixture is drawn into the pump chamber C through the port E. On the up-stroke of the combined pump and power piston, the air and mixture are compressed, the air entering the combustion chamber in front of the mixture through the ports b<1> and passages a<1>. The liner passages may be formed in a ring surrounding the liner, the ring being adjustable by hand or governor to control the amount of the charge. In a modification, air is admitted to the piston interior through the port F<2>, Fig. 11, trunk passage b<3>, liner passage a<1>, trunk passage b<2>, and ports b<1>. Mixture enters the pump chamber C from the admission port E<2> through ports d<3> in the pump extension d<2>. After compression, the mixture enters the piston interior through the ports d' and enters the combustion chamber behind the air. In this arrangement, the liner passages may also be formed in an adjustable ring.
Patent GB-1315748-A (GB)
Title: Phase modulating displacement sensor
IPC: B60T8/171
Filed: 1971-04-19
Abstract: 1315748 Measuring displacement and acceleration electrically FORD MOTOR CO Ltd 19 April 1971 [13 Feb 1970] 21122/71 Heading G1N A phase modulating displacement sensor comprises an input oscillator 10 feeding a resonant circuit 40 having a displaceable member for example the core of an inductor so that a phase shift in the signal derived from the circuit 40 is dependent on the displacement of the member. The output of the resonant circuit is fed to a pulse forming circuit comprising transistors 52, 54, to provide a pulse train on line 64. Similarly the output of the oscillator at 73 is fed to similar pulse forming circuit 74 46. The two phase shifted pulse trains at 64 82 are fed to a pair of cross coupled gate circuits 66, 90 whose output is a pulse waveform of pulse width equal to the phase shift produced. This signal is fed to an amplifier 94 and capacitor 96 to provide an output voltage V o  representative of the phase shift and hence the displacement. The arrangement may be used to sense displacement caused by acceleration or deceleration of a vehicle.
Patent GB-855737-A (GB)
Title: Improvements in or relating to the dry purification of gases
IPC: C10K1/24
Filed: 1958-07-02
Abstract: 855,737. Purifying gases. PANI, P. July 2, 1958 [July 3, 1957; Jan. 4, 1958], No. 21128/58. Class 55 (2). A gas purification tray is provided with an extension forming part of a continuous gas conduit adapted to protrude into the interior of another tray on assembly of a plurality of such trays in superimposed relationship, the general configuration of the extension being that of a truncated cone or pyramid. As shown, the tray may be of circular or polygonal construction having a continuous gas conduit 3 which may be centrally disposed, passing through a column of such trays. The extension 4 of gas conduit 3 preferably tapers inwardly towards the outer opening thereof and may be provided with a lip, ledge or like projection 5 which terminates at a sufficient distance from the inner wall to allow conduit 3 of the tray below to pass therethrough. Preferably each tray has grids 6 supporting a mass of granular purifying material 7. In operation each tray is charged with particulate purifying material 7 to a predetermined depth such that an embankment 9 is produced around conduit 3 within the tray. Thereafter the extension of an adjacent tray is forced into the purifying material around conduit 3 such that lip or ledge 5 consolidates the purifying material confined by the walls of the gas conduit and the extension. Gas to be purified may pass upwards or downwards through a column of trays.
Patent GB-1461809-A (GB)
Title: Coagulating devices
IPC: A61B17/30
Filed: 1974-05-13
Abstract: 1461809 Coagulation electrodes RICHARD WOLF GmbH 13 May 1974 [16 May 1973] 21144/74 Heading A5R A tissue coagulating device comprises a flexible or rigid barrel 1 having annular electrodes 8, 9 separated by an insulating spacer 10 near its distal end, the distal end being formed by a rounded plastics portion 7, and the electrodes 8, 9 being connected via wires 3, 2 to metal plug terminals 5, 4 separated by an insulating plastics bush 6 at the proximal end of the barrel. The plug terminals 5, 4 may be connected to a source of high frequency altternating current (not shown). The parts 7-10 are secured together by interengaging shoulders and screwed connections 7a, 10a. The electrodes 8, 9 have cylindrical exposed surfaces 8a, 9a respectively. In another embodiment, Figure 2 (not shown), a rounded electrode (12) forms the distal end of the barrel, and the other electrode (14) is cylindrical and is fitted on to a step on an insulating spacer (16) separating the two electrodes, an insulating piece (18) being interposed between electrode (14) and the barrel. The embodiment of Figure 3 (not shown) is similar to Figure 2 except that an electrode (15) is fitted over a step on an insulating spacer (17), and the barrel is fitted directly on to a step on the electrode (15). In the embodiment of Figures 4a, 4b (not shown), an electrode (19) is in the form of a metal rod and is insulated from a surrounding tubular electrode (20), the distal end of the device being rounded as before. In the embodiment of Figures 5a, 5b (not shown) electrodes (21) and (22) generally take the form of quarter spheres, and are separated by an insulator (23) so that the distal end of the device is generally hemispherical.
Patent GB-382647-A (GB)
Title: Improvement in production of motor benzol
IPC: C07C7/17
Filed: 1931-07-24
Abstract: Benzol crudes or coke-oven light oils are freed from gum-forming constituents with a minimum loss of other unsaturateds by washing in a liquid state with limited amounts of sulphuric acid of about 60 DEG B<\>ae and at least 64 DEG  B<\>ae.  Agitation with 0 08-0,13 lb. of acid per gallon of oil at 20 DEG  C. for \ba3/4\be-1 hour is suitable.  Washings with caustic soda and water, and distillation may follow.
Patent GB-852220-A (GB)
Title: Improvements in or relating to juice extractors
IPC: A47J19/02
Filed: 1959-06-22
Abstract: 852,220. Juice extractors. JURO ELECTRO APPARATUS WORKS L. HENZIROHS Ltd. June 22, 1959 [June 26, 1958], No. 21327/59. Class 28(2) The teeth of a rotated disc tear off and throw out particles of vegetables &c., against a rotated flared screen 47, 48 through which the juice passes to a spout 43 while the pulp climbs up on the screen and passes out at a spout 43a. The cutting disc is spaced from the screen bottom and carries an upper spaced ring disc providing pulp passageways 55, 56 and 62, 63 which are proportioned to allow the particles to hit the screen and then drive the particles up the screen by the succeeding particles. The hopper 43b is provided with an adjustable stop 44 to prevent rotation of the vegetables.
Patent GB-1528061-A (GB)
Title: Processes for extracting copper
IPC: C01G3/00
Filed: 1976-05-24
Abstract: 1528061 Recovery of copper M J MEIXNER 24 May 1976 [18 June 1975] 21343/76 Heading C1A Copper is extracted from mineral ore containing Cu, Fe and S by leaching with an aqueous solution containing H 2 SO 4  and one or more ferric salts so as to dissolve copper as Cu<SP>2+</SP> ions and to oxidize sulphides to elemental S or FeS 2 , extracting Cu<SP>2+</SP> ions from the aqueous solution by ion exchange with an equivalent amount of H+ ions and recycling the thus extracted aqueous solution to leach further ore, the ratio of Fe(II) to Fe(III) ratio in the recycled solution being adjusted to a value at which there is substantially no further oxidation of S-containing compounds to sulphates by aeration in the presence of oxidizing bacteria prior to recycle. The ion exchange is suitably effected using liquid ion exchangers in a counter current solvent extraction. The pH of the aqueous solution prior to exchange is preferably adjusted to less than 2À5 and following ion exchange is typically 1À3-2À2. The solution of Cu<SP>2+</SP> obtained by the ion exchange may be electrolysed to recover the pure copper and generate the H+ ions which are required to replace the Cu<SP>2+</SP> in the leaching solution. The total ion concentration of the aqueous solution is preferably maintained between 2 and 12 g/1, the amount of Fe(II) being maintained at a minimum value which is dependent upon pH, e.g. at least 0À2 g/1 at pH 1À7. The leaching solution may contain bacteria of one or both of the strains thiobacillus ferrooxidans and thio-oxidans. The leaching is preferably carried out at ambient temperature and a portion of the aqueous solution may be drawn off before the ion exchange and recycled directly to leach further ore. The residue from the leaching becomes enriched in S and the residues may be used as starting material in the production of sulphuric acid.
Patent GB-915234-A (GB)
Title: Improvements in or relating to the preparation of melamine
IPC: B01J27/16
Filed: 1961-06-13
Abstract: Catalysts for preparing melamine consist of aluminium oxide in free or chemically combined form and contain a phosphate, borate, arsenate or sulphate.  The catalyst contains 0,01 to 35% by weight of phosphorus, 0,0035 to 13% by weight of boron, 0,02 to 45% by weight of arsenic, or 0,01 to 28% by weight of sulphur.  In examples catalysts described consist of alumina impregnated with phosphoric acid, boric acid, arsenic acid and sulphuric acid.ALSO:Melamine is prepared by heating urea and/or its thermal decomposition products (e.g. biuret, cyanuric acid, ammelide or ammeline) at 200 DEG  to 450 DEG C. in the presence of ammonia and a catalyst consisting of aluminium oxide and a phosphate, borate, arsenate or sulphate.  The catalyst contains 0.01 to 35% by weight of phosphorus, 0.0035 to 13% by weight of boron, 0.02 to 45% by weight of arsenic, or 0.01 to 28% by weight of sulphur.  In p  examples melamine is obtained from urea and ammonia using as catalysts alumina impregnated with phosphoric acid, boric acid, arsenic acid and sulphuric acid.
Patent GB-938249-A (GB)
Title: Heat sealing device
IPC: B65B7/28
Filed: 1962-06-04
Abstract: 938,249. Seaming non-metallic sheet material. FR. HESSER MASCHINENFABRIK-A.G. June 4, 1962 [Sept. 1, 1961], No. 21372/62. Class 42 (1). [Also in Group XVII] A device for heat sealing a heat-sealable cover D to a heat-sealable container B comprises a heat-sealing tool divided into heat-sealing jaws 1 and a radiant heater 6 to apply heat to the jaws 1. The cover D and the container B are of the shape, in plan, of a square with rounded corners and each of the four jaws 1 engages a head 2 having apart 4 which enters an upstanding rim of the cover D to act as a countersupport during sealing. The annular heater 6 has a parabolic reflector 7 situated therebeneath in a channel 5 and heats the jaws 1 both in the working position, Fig. 1, and the retracted position. In use, a sleeve 17 slidable on a stem 3 which resiliently supports the head 2 is moved upwardly by a lever 19 through a link 18 to allow springs 16 to pull arms 14 on bell-crank levers 11 and rollers 15 thereon upwardly and press the jaws 1 against the container B. The levers 11 and also levers 12 are mounted on links 13 on insulating bodies 8 carrying the jaws 1. Nuts 21 are provided to adjust the tension of the springs 16 and the pressure of the jaws 1. Cooling air passes from a conduit 26 through a bore 25 in the stem 3 to cool the seam. The jaws 1 may be supplemented with jaws having a rectilinear welding surface for the sealing of bag closures.
Patent GB-685879-A (GB)
Title: Improvements in or relating to acrylonitrile copolymers
IPC: C08F220/44
Filed: 1950-08-30
Abstract: Copolymers are prepared by heating in aqueous emulsion in the presence of a water-soluble peroxy catalyst from 75 to 99.5 per cent of acrylonitrile and from 0.5 to 25 per cent of the allyl or methallyl esters of halogen substituted aliphatic monocarboxylic acids containing up to 8 carbon atoms, such as allyl and methallyl chloroacetates, and allyl bromopropionate, chlorobutyrate, and chlorohexoate.  Suitable water soluble peroxy catalysts are sodium peroxide, hydrogen peroxide, sodium perborate and potassium persulphate.  The aqueous emulsion may be maintained by agitation or by the use of emulsifying agents such as sodium oleate, potassium stearate, common soaps, salts of dodecylmethylamine and triethanolamine, salts of rosin acids, the sodium salts of mahogany acids, and the water soluble salts of half esters of sulphuric acid and long chain alcohols and sulphonated hydrocarbons.  The reaction may be carried out in a batchwise manner, or the monomers and catalyst may be added portion-wise or continuously during the course of the reaction; also present in the reaction medium may be polymerization regulators such as the alkyl and aryl mercaptans, for example tert.-dodecyl mercaptan, chloroform, carbon tetrachloride, dithioglycidol, and alcohols.  The copolymers formed are granular in nature and may be dissolved in solvents such as N,N-dimethylformamide, N,N-dimethylacetamide, gammabutyrolactone, and ethylene carbonate; the solutions so formed may be dry or wet spun into fibres.  When using the wet spinning technique the copolymer solution may be spun into water, mixtures of dimethylacetamide and water, or aqueous solutions of acids, bases and salts.  The fibres so produced may be treated by stretching in a steam atmosphere.  The copolymers may be rendered dye receptive by substituting the chlorine atoms therein by aqueous or gaseous ammonia, or a primary, secondary, or tertiary amine such as methylamine, n-butylamine, ethylene diamine, ethanolamine, diethylamine, ethyl isopropylamine, dicyclohexylamine, diethanolamine, triethanolamine, triethylamine, trimethylamine, hexamethylenetetramine, pyridine, morpholine, N-ethyltrimethylene diamine, diethylene triamine, triethylene tetramine, and tetraethylene pentamine.  The amination reaction may be carried out by treating the copolymer in granular form, in solution, or in fibrous form, with the amines. The aminated copolymers are susceptible to dyeing with acid dyestuffs.ALSO:Fibre forming copolymers made from 75 to 99.5 per cent of acrylonitrile and 0.5 to 25 per cent of the allyl or methallyl esters of halogen substituted aliphatic monocarboxylic acids containing up to 8 carbon atoms are rendered susceptible to dyeing with acid dyestuffs by treatment with aqueous or gaseous ammonia, or primary, secondary, or tertiary amines, the treatment being carried out on the copolymers in granular or fibrous form, or in solution.
Patent GB-910897-A (GB)
Title: Display apparatus
IPC: G09F11/12
Filed: 1960-06-17
Abstract: 910,897. Display apparatus. GOODA, A. R. July 5, 1961 [June 17, 1960], No. 21449/60. Class 3 (1). A display device comprises moulded plastic side frames 6, each formed with a cyclic guide channel 8 in which run the nylon ends 5 of rods 4 carrying a display card 3. An electric motor drives four chain sprockets 13, 14, each pair carrying a nylon roller chain 2 with a lifting hook 22 which in the course of one cycle removes a display card rod K from the magazine wheel 27, moving the wheel by one tooth against the detent 32, and transfers the display card rod to the upper magazine 11, pushing it past the detent 37 and thus pushing out the front card rod A past the detent 25, so that the card rod A falls past the glass window 1 into a notch of the magazine 27. A lever 41 is provided to break the fall of the rod and a shield 36 prevents the lower edge of a falling display card from jamming between the rods in the magazine wheel.