baber/WOPTO huggingface dataset:
Patent GB-783660-A (GB)
Title: Flashlight devices for photographic cameras
Inventor: MEI WIETSE HENDRIK VAN DER
IPC: G03B15/04
Filed: 1955-09-28
Abstract: 783,660. Flashlight apparatus. VOIGTLANDER AKT.-GES. Sept. 28, 1955, No. 27637/55. Class 9(2) [Also in Group XX] A combined flashlight device and photographic camera comprises two bowl-shaped parts hinged together, an upper part constituting a reflector and a lower part incorporating means for holding the camera, the upper part covering the front of the camera when the device is closed and with the lower part forming a closed container which houses the camera and the electrical parts. A casing for housing the electrical parts (battery and condenser) may be fixed to the reflector or accommodated in a hollow space in the part housing the camera. As shown in Fig. 2, the part 1 housing the camera 3 and the reflector 2 may both be of moulded plastic and hinged together at 4, the reflector having a reflecting coating and carrying a casing 5 in which are removably mounted a battery 6 and condenser 7 and which carries a socket 8 for a flash-bulb 9. A cable 10 connects the electrical parts with the synchronizing contact of the shutter of the camera. The camera 3 is held in the part 1 by a screw 14 engaging in the tripod bushing 12, and the part 1 has an opening 15 .aligned with the eyepiece of the camera view-finder. An additional opening may be provided for operation of the film-winding knob or lever, or alternatively, the camera be connected by the screw 14 to a plate pivoted either horizontally or vertically in the part 1 so that it can be swung out of the part 1 to permit of film-winding and adjustment. Where the film-winding and shutter setting movements are effected automatically after each exposure by spring mechanism built into the camera, a member which is carried on a leaf-spring secured to the part 1 and which has a limb engaging the shutter release button is depressed to effect shutter release. The battery and condenser may be held in the free space below the camera by springs also serving as contact springs. A carrying strap may be fastened to the part 1.
Patent GB-663345-A (GB)
Title: Improvements in sliding contact structures for conducting electric currents
IPC: B23K11/36
Filed: 1949-10-28
Abstract: 663,345. Electric welding. SCIAKY, D. Oct. 28, 1949 [July 26, 1949], No. 27673/49. Class 83 (iv). [Also in Group XXXVI] In an electric resistance welding-machine 10, the current from the stationary secondary winding 24 of the transformer 23 is conducted to the movable electrode 27 by conductive bars 44, 45 pivoted to the stationary winding at a bracket 40 and to the electrode at a similar bracket 38, springs 50, 55 on the pivot pins 47, 46 yieldingly maintaining the bars in contact with the brackets 38, 40. The pivot pins are insulated by tubes 48, 52 and the pin-receiving bore 53 of the bracket 40 is widened so that the vertical movement of the electrode will not strain the pivots. Preferably, the bars are liquid-cooled through channels 57 therein and the electrode is moved by a piston 34 operated by fluid through pipes 35, 36 opening into the cylinder 33. The bracket 38 may carry several electrodes, Fig. 3 (not shown).
Patent GB-518395-A (GB)
Title: Improvements to safety switch mechanism for electric wash boilers and the like
IPC: H05B1/02
Filed: 1938-09-23
Abstract: 518,395. Thermal switches. TUCKER & CO., Ltd., J. H., and FUKE, F. C. Sept. 23, 1938, Nos. 27731, and 36384. [Class 38 (v)] In a safety device for an electric wash boiler a switch lever 15, pivoted at 11 and biased by a spring- toggle arrangement to one side or the other of a vertical line through 11, normally bears against one or other arm 9 of a member 6 fixed to a vertical spindle soldered to a support. When the solder melts with overheating, the lever 15 moves fur- 'ther still from its central position into the dotted position shown under the action of the dead centre spring 21, pushing the arm 9 with, it and opening switch contacts. The solder then resets, and to reset the switch the shaft 11 is rotated by hand in a clockwise direction back into the switch-closed position, the lever 15 moving, however, beyond its original position till it engages the other arm 9 of the member and is there held. The spring 21 has during this action moved over its deadcentre and now tends to rotate the lever 15 further in a clockwise direction. The switch is still closed and further rotation to open the contacts only occurs when the solder melts again. The switch may, however, be rotated back by hand to open the circuit. In a modification, Figs. 4, 5 (not shown), the member 6 has a slot within which the lever 15 moves. Specification 496,940 is referred to.
Patent GB-894725-A (GB)
Title: Improvements in or relating to electrolytic capacitors
Inventor: FRANK ZENON WAWRZYNIEC
IPC: H01G9/042
Filed: 1959-08-13
Abstract: 894,725. Electrolytic capacitors; anodizing metals. HUNT (CAPACITORS) Ltd., A. H. July 28, 1960 [Aug. 13, 1959; Jan. 7, 1960], Nos. 27748/59 and 649/60. Classes 37 and 41. An electrolytic capacitor contains a silver cathode electrode which bears on its electrolyte-contacting face a thin adherent film of silver oxide or peroxide with or without silver halide (e.g. Ag Br) in addition, the film preferably containing at least 15% oxide ; the capacitor anode may comprise filmed tantalum. The adherent film of the silver electrode, which may be silver foil with the film on both faces as in a semi-wet type of capacitor, a silver container coated on its inside with the film as in a wet type of capacitor, or silver gauze, may be formed electrolytically by making the electrode, either the silver foil or the silver container of the bath, the anode during the electrolysis therein of an aqueous solution of an alkali metal (e.g. Na or K) carbonate, bicarbonate or hydroxide, or ammonium carbonate or hydroxide, or mixtures thereof, with or without a soluble halide (e.g. NaBr), using a current density of not more than 20 m.a./sq. inch. Examples of baths are (i) 10% Na2CO3 + 2% NaCl; and (ii) 200 g/l. KOH + 30 g/l. KBr.
Patent GB-259402-A (GB)
Title: Improvements in or relating to combined gully-emptying and street-washing machines
IPC: B60P3/22
Filed: 1925-11-04
Abstract: 259,402. Dennis Bros., Ltd., and Dennis, J. C. Nov. 4, 1925. Pneumatic collectors; surface treatment with liquid materials. - Relates to combined gully-emptying and street-washing apparatus of the kind in which a tank pivotally mounted on a locomotive road vehicle is adapted either to receive and discharge sludge or to serve as a reservoir from which water is drawn by a pump and distributed by nozzles on to the road. In order to provide between the tank 2 and the outlet water conduit 4 for street-washing purposes a coupling which permits tipping of the tank, the latter is formed with a cylindrical mouth located co-axially with the tipping axis, and the conduit 4 engages in or over the mouth in a liquid-tight joint allowing relative angular movement between the parts. In the arrangement shown, the tank is provided with trunnions 5 mounted in bearings 3 which form the tipping axis, one of the trunnions constituting the cylindrical mouth and engaging around a gunmetal or similar tube 9 which connects the tank with an elbow-piece 8 fitted on the conduit 4. A stuffing- box 10 maintains a watertight joint between the tube 9 and trunnion 5, and a screw cap 13 is adapted to close the inner end of the tube 9 when the apparatus is to be used for gullyemptying.
Patent GB-801332-A (GB)
Title: A combined disk and drum brake
IPC: F16D55/46
Filed: 1956-09-11
Abstract: 801,332. Vehicle driving gear. BENDIX AVIATION CORPORATION. Sept. 11, 1956 [Sept. 14, 1955], No. 27784/56. Addition to 756,904 [Group XXXIV]. Class 79(2) [Also in Group XXXIV] In a tractor where the brakes may be used for steering purposes, the friction brakes 10 and 12, located at the right and left-hand side of jackshaft 14, are operated by pedals 16 and 18 which are independently operable through linkages 20, 22. Connected to the jackshaft 14 are differential pinion gears 26 carried on the ends of axle shafts 28; the latter also carrying tractor wheels 30 and 32. By operating one or the other of pedals 16 or 18 to brake the appropriate wheel, the tractor may be steered. The location of the brakes at the jackshaft of the tractor enables a lower order of torque loads to be exerted by the brake and makes it possible to raise the level of the axle shaft to increase the height between the undercarriage of the tractor and the ground, thus preventing damage to crops. Specifications 761,076 and 776,744 [both in Group XXXIV] are referred to.
Patent GB-208291-A (GB)
Title: Improvements in, or connected with, change-speed belt gearing
IPC: F16H9/04
Filed: 1922-10-14
Abstract: 208,291. Brown, G. H. Oct. 14, 1922. Variable-speed belt gearing comprises two belts shifted simultaneously to change speed over two fast-and-loose pulleys 41, 40 and 42, 43 of different diameters upon a shaft 2. The beltforks 7, 8 are carried by blocks 5, 6, which slide on a parallel rod 1 and are normally pressed by springs 23, 24 so that distance screws 5<b>, 6<b> abut against the circular-ended prongs 9 of a shifting fork 22. In the application to an automatic screw machine, the fork 22 is moved to and fro by a cam acting through a rod 18, so that the belts are smited, one belt being always on one of the inner pulleys 41, 42, which are fast. The blocks 5, 6 are connected by a broken toggle 27 operated through a rod 33 and hand lever. To stop the machine, the toggle 27 is straightened, the forks thrust apart, and both belts brought on to the outer pulleys 40, 43, which are loose.
Patent GB-740944-A (GB)
Title: Improvements in and relating to thermal turbines
IPC: F01D25/26
Filed: 1953-10-09
Abstract: 740.944. Elastic-fluid turbines. ESCHER WYSS AKT.-GES. Oct. 9, 1953 [Nov. 20, 1952], No. 27876/53. Class 110(3) In a steam or other thermal turbine comprising an inner housing separated from an outer housing by a gap through which at least part of the driving medium is passed after having performed work in the turbine, the inner surface of the outer housing is provided with fins which guide ,the flow of medium through the gap. In the turbine shown in Fig. 2, driving fluid is extracted at an intermediate point 15 and passed through the space 13 between an inner casing 11 and an outer casing 10, to cool the latter, and is discharged at 16. Similarly, the exhaust passes through the space 13<SP>1</SP> between the inner and outer casings on its way to the discharge 18. Radially disposed cooling fins are provided on the inner surface of the outer casing 10 and may extend either axially or helically. In the case of a steam turbine, the extracted steam may be used to preheat feed water, while the discharge 18 may be connected to the condenser. The intermediate extraction of driving fluid may be omitted, some of the exhaust passing direct to the discharge while the remainder traverses the entire length of the space between the inner and outer casings and leaves the turbine through two branches arranged symmetrically at the inlet end of the turbine, subsequently, it may be, rejoining the main part of the exhaust. In a further embodiment, the inner casing is provided only in the region of the high-pressure stages, and driving fluid is extracted after the last high-pressure stage and passed through the space between the carrier and outer casings.
Patent GB-984189-A (GB)
Title: Improvements in tools
IPC: B23B29/034
Filed: 1963-07-15
Abstract: 984,189. Boring bars. VALERON CORPORATION. July 15, 1963 [Sept. 27, 1962], No. 27880/63. Heading B3C. A boring bar 10 comprises a bush 15 held in the bar by screws 17, a dial adjustment sleeve 23 rotatable in a counterbore 19 in the bush, and a tool 26 closely fitting a bore 18 in the bush and having a screw-threaded engagement with sleeve 23. The total comprises a tungsten carbide insert 31, held between a shim 32 and a chip breaker 33, by a screw 34. Tool 26 and bush 15 have transverse slots 37, 22, and a disc 38 has keys 41, which engage the slots to prevent relative rotation between the bush and tool, and four springs 42 carried by the bush urge the tool and sleeve inwardly.
Patent GB-941790-A (GB)
Title: Wall bracket for electric hand mixer
IPC: A47J45/02
Filed: 1961-08-02
Abstract: 941,790. Brackets. ESGE EXPORT A.G. Aug. 2, 1961 [Aug. 12, 1960], No. 27974/61. Heading A4B. An electric hand mixer 3 is supported on a storage bracket with the front end of the motor housing seating in a correspondingly shaped socket 1 having the form of a gapped ring. Studs are provided at the rear of the socket for supporting mixing and cutting tools.
Patent GB-445031-A (GB)
Title: Improvements in cinematograph apparatus
IPC: G03B21/32
Filed: 1934-10-01
Abstract: 445,031. Kinematograph apparatus. JOHN, W. E., Gresham Lodge, Streatham Common North, London. Oct. 1, 1934, No. 27982. [Class 97 (i)] In film-winding devices of the kind in which the film is fed from the inside of the supply roll on to the outside of the receiving roll, the receiving roll 6 is driven from the gate feed mechanism through a slipping clutch 10, the supply roll 11 is driven from the receiving roll through some form of variable speed gear such as the belt 17 and coned pulley 18, and the means for varying the speed ratio between the receiving and supply rolls consists of a movable roller structure 23 which is actuated by variations in the size of the loop of film between the supply roll and a sprocket wheel 25 driven in unison with the gate feed mechanism. The structure 23 comprises rollers engaging both sides of the film and mounted at one end of a bellcrank lever, the other end of which is forked and embraces the belt 17 in the neighbourhood of the coned pulley. The lever is balanced by an adjustable weight so as to be readily movable by slight increases or diminutions in the size of the loop and is preferably slightly biassed for over-feed of the film. An extension of the shaft 14 for driving the supply roll is preferably provided to prevent coils of film being pulled out of the roll.
Patent GB-1441582-A (GB)
Title: Clip for hair rollers
IPC: A45D6/14
Filed: 1972-06-15
Abstract: 1441582 Hair clips H D JENKINS and J L MOORE 11 Sept 1973 [15 June 1972] 28038/72 Heading A4V [Also in Division F2] A hair clip 10 formed from a single piece of wire, comprises two elongate limbs 14, 16 retained in spaced relationship to form a U-shape, by a multiple coil spring 12 inter-connecting the limbs. Member 12 is formed as a coil spring and the two end portions of the wire extend one from each end of coil 12 to form substantially parallel limbs 14, 16. The limbs extend tangentially from the coil, and limb 16 includes a bend 20 to offset limb 16 in a direction normal to the axis of the coil 12 by an amount equal to the diameter of the coil minus the diameter of the wire. The limbs 14, 16 thus lie in a plane parallel to the axis 18 of the coil 12. Each of the limbs 14, 16 is formed with a rounded taper 22 at the free end. The clip may be coated with anti-corrosive, lustrous material e.g. chromium, nickel or gilded. In use, the clip is inserted through openings (30), Fig. 2 (not shown) in the roller (32) in the hair.
Patent GB-646697-A (GB)
Title: Improvements in or relating to condenser type insulators
IPC: H01B17/28
Filed: 1948-10-29
Abstract: 646,697. Insulators. MICAFIL, Ltd. Oct. 29, 1948, No. 28161. Convention date, Nov. 1, 1947. Addition to 538,147. [Class 36] A condenser-type leading- in insulator of the kind disclosed in the parent Specification comprises a wound insulating web 3 having conductive coatings 4 which are not more than 10-4 cm. thick, which are sub-divided in the circumferential direction, and which extend to that edge of the web which will be submerged in the insulating liquid 5 when the insulator is mounted on a liquid insulated device. The end of the insulator that dips into the liquid 5 preferably has a bottle-neck form.
Patent GB-923386-A (GB)
Title: Polymerisation of vinyl alkyl ethers
IPC: C08F16/12
Filed: 1959-08-18
Abstract: Vinyl alkyl ethers containing 1-14 carbon atoms in the alkyl group are polymerized in the liquid or vapour phase in the presence of a finely divided anhydrous aluminium halide catalyst in which at least a part of the halide is fluoride.  A list of vinyl alkyl ethers is given including the methyl, isobutyl and 2-ethylhexyl ethers which are exemplified.  Crystalline polyvinyl isobutyl ether having a crystalline X-ray diffraction pattern in unorientated condition is obtained by the process.  The catalyst may be aluminium fluoride or aluminium chlorofluorides or other products made by the action upon anhydrous aluminium chloride, bromide, or iodide or aluminium alkyls or alkyl halides of fluorinating agents such as fluorine, ethylidene fluoride, boron trifluoride, benzotrifluoride, antimony pentafluoride or silicon tetrafluoride.  The polymerization may be carried out in an inert diluent such as saturated aliphatic and aromatic hydrocarbons and the catalyst may be used as a very fine dispersion in the diluent. Chain terminating agents may be used in the polymerization such as alcohols, phenols, amines, mercaptans, fatty acids and thiophenols.  The polymerization may be carried out batchwise or continuously and the vinyl ether may be passed over the catalyst deposited on a carrier such as alumina, carbon, silica or asbestos.  The catalyst may be inactivated by the addition of acetone to the polymerizate, and the polymer purified by re-precipitation from methanol or hydrocarbon solvents.  The polymers may be made into thin sheets or films.  Specifications 820,469, 841,236 and 910,514 are referred to.
Patent GB-858958-A (GB)
Title: Products and processes for the treatment of molten metals
Inventor: ATTERTON DAVID VALENTINE
IPC: C22B15/00
Filed: 1958-09-03
Abstract: A process for the treatment of molten metal to modify its chemical composition and/or physical properties consists of adding a solid product in which the active agent is dispersed in a mass of fused alkali metal halide, alkaline earth metal halide, or a mixture of such halides.  Inert fillers such as alumina or magnesia, or salts such as calcium silicate which assist in preventing deposition of the active agent during manufacture, may also be present.  The solid product is generally made by dispersing the particles of active agent in the molten carrier material at a temperature below the melting point of the former; the dispersion is then preferably cooled in moulds to yield convenient shapes.  The dispersion may alternatively be cast into containers, e.g. of aluminium or steel, which are then sealed, or the cast pieces may be coated with waterproof coating or wrapped in moisture proof foil.  The container, coating or wrapping may be removed before use, or may be so selected as to have no deleterious effect on the molten metal being treated.  Uses of the invention in the desulphurization of iron with magnesium, and the de-oxidation of copper with calcium, are described.
Patent GB-1146856-A (GB)
Title: Perforated tape reader with adjustable-width tape guide
IPC: G06K13/24
Filed: 1966-06-24
Abstract: 1,146,856. Perforated tape reader guide. POLITECHNIKA WARSZAWSKA. 24 June, 1966 [26 June, 1965 (2)], No. 28264/66. Headings G4M and G5R. A perforated tape reader guide consists of a fixed blade 4 and movable blades 1 and 2 and incorporates a system for selectively moving each movable blade so as to bring its tape supporting surface into coplanar relationship with the tape supporting surface of the fixed blade, to enable the width of the guide to be altered. This system may consist of cams 15, 18 turned by a shaft 14 and bearing on arms 16, 17 connected to the movable blades, or of a spring- loaded shaft having projections which may be brought into engagement with similar arms (Fig. 6, not shown). In suitable brake and drive release systems for use with the tape reader (Figs. 8, 9, not shown), the tape is arranged to pass under the armatures of two electromagnets, the armatures being activated when braking is required, to grip the tape. Simultaneously a pressing roller is withdrawn from engaging a tape driving roller by a further electromagnet, to disengage the drive.
Patent GB-323721-A (GB)
Title: Improvements in the manufacture and production of artificial rubber
IPC: C08C19/00
Filed: 1928-10-03
Abstract: 323,721. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 3, 1928. Caoutchouc, synthetic.-Polymerized diolefines obtained from aqueous emulsions are treated with substances having a reducing action or a decomposing action on oxidizing agents such as hydrogen peroxide. The agents mentioned are sodium bisulphite, sodium hydrosulphite, sodium formaldehydesulphoxylate, stannous chloride, hydroxylamine, hydrazine or salts thereof, phenols, naphthols, sols of metals or metal oxides, amines such as aniline, peroxydases and hydrogen in the presence of catalysts. The treatment may be applied to the polymerization product in the form of emulsion or during a mechanical treatment such as treatment on friction rollers. In the examples (1) olein is dissolved in isoprene and emulsified with an aqueous solutieon of ammonia and glue, the emulsion being at pH 8.9; hydrogen peroxide is added and the mixture is polymerized at 50‹ C. for two days; an aqueous solution of sodium hydrosulphite is added to the synthetic latex, and precipitation is effected in the usual manner; an aqueous solution of phenol or aniline may be used instead of sodium hydrosulphite : (2) oleic acid and magnesium oleate are dissolved in butadiene and emulsified with an aqueous solution of ammonia; polymerization is effected with hydrogen peroxide at 60-70‹ C. for two hours, after which an aqueous solution of pyrogallol or an extract of horse-radish containing peroxydase is added, and coagulation is effected as usual. Specifications 29213/11, 2313/12, 28821/12, 975/13, and 307,375 are referred to.
Patent GB-960530-A (GB)
Title: N:n-dinitroso-hydrazo-dicarboxylic acid amides and process for the production thereof
IPC: C07C281/06
Filed: 1962-07-24
Abstract: The invention comprises compounds of the formula R1N(NO)CONHNHCON(NO)R2, where R1 and R2 are hydrogen groups which may be substituted, e.g. alkyl, cycloalkyl, aryl and aralkyl, which may be substituted by halogen and/or C1- 4 alkyl; and their preparation by reacting a compound R1NHCONHNHCONHR2 with a nitrosylating agent, e.g. with aqueous NaNO2 at -15 DEG  to + 10 DEG C. or with nitrous gases such as nitrogen peroxide, nitrogen trioxide, nitrosyl chloride or nitrosyl bromide.  The starting materials may be prepared from hydrazine hydrate and an isocyanate or carbamyl chloride (R1 then being the same as R2).
Patent GB-1104569-A (GB)
Title: Novel substituted cyclohexyl amines and a process for the manufacture thereof
IPC: C07D221/12
Filed: 1966-06-24
Abstract: Racemic and optically active compounds of the general formula <FORM:1104569/C2/1> (wherein R1 represents a C1- 7 alkyl, C2- 4 alkenyl or C4- 7 cycloalkylalkyl group and R2 represents a hydrogen atom or a C1- 7 alkyl, C1- 4 hydroxyalkyl or C1- 4 alkoxy -(C1- 4 alkyl) group) and their acid addition salts are prepared by reducing an oxime or imine of the general formula <FORM:1104569/C2/2> (wherein R represents a hydrogen atom or hydroxy group), optionally followed by salt formation and/or resolution.  The preparation of the starting materials is described.  The compounds of the invention exhibit central nervous system stimulating activity and anti-inflammatory activity and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, together with a carrier.