baber/WOPTO huggingface dataset:
Patent GB-227571-A (GB)
Title: Improvements in metal slotting and milling machines
IPC: B23Q1/48
Filed: 1923-11-13
Abstract: 227,571. Muir & Co., Ltd., W., and Melloy, J. H. Nov. 13, 1923. Milling-machines; shaping curved surfaces.-In slotting and milling- machines for treating a number of articles simultaneously to produce circular and elliptical shapes the articles are mounted on a work-table having a resultant motion caused by two pin-and-slot motions at right angles, and are presented to slotting-tools or to revolving cutters working in fixed bearings on the machine. A row of cutters b is mounted in the frame a and a corresponding row of articles c is moved relatively thereto. The articles are clamped on the table d which has one pin-and-slot connection j with a block g carried by the member e and adjustable on the screwed shaft i, and a second with a screwadjusted pin k working in a slot in the base plate at right angles to the slot n. The member e is rotated by the worm gearing p, q. By adjusting the blocks on the screwed shafts, the movement of the table can be regulated to produce the required shapes. Reference has been directed by the Comptroller to Specification 14788/84.
Patent GB-1140186-A (GB)
Title: Improvements in or relating to multiple iris rasters
IPC: G02F1/17
Filed: 1967-06-21
Abstract: 1,140,186. Light modulators. A. M. MARKS. 21 June, 1967 [25 July, 1966], No. 28705/67. Heading H4F. An electrostatic fluid cell for changing the amount of light transmitted or reflected through any one of a large number of small areas in a viewing screen, e.g. a television-type screen, comprises a non-conductive transparent fluid 14, Fig. 3, containing a plurality of opaque dipole particles 19 held between two transparent non-conductive plates 10 and 11 the outer surface of each plate having secured thereto or embedded therein a plurality of spaced parallel conductive electrodes 16 and 17 connected to external variable voltage sources, and extending therein a plurality of conductive pins 15 and 15a positioned along the electrodes and in contact therewith, each pin being mounted normal to the surface of the plates and opposite a pin in the other plate. The electrodes on one plate are preferably arranged at right angles to the electrodes on the other plate. The pins may extend all the way through the plates and make contact with the fluid, Fig. 4, not shown. In operation an alternating voltage, e.g. from television scanning circuits, is applied across the pins causing the dipoles in the selected areas across which an alternating electrostatic field is formed to locally align to form small transparent circular areas permitting light to pass through the raster. To align the dipoles the voltage must be above a threshold voltage. When the voltage is removed, the dipoles will disorient to form an opaque or reflecting nontransmitting screen. The dipole particles may be elongated flat or rod-like metal crystals or dichroic crystals such as Herapathite crystals having a length about 1/3 and a diameter which is less than 1/30 the wavelength of visible light. When the pins extend through the plates the dipoles are preferably platinum crystal needles and they are immersed in silicone to minimize electrolysis. The fluid between the plates may be a liquid or gas. The cell may be illuminated via a ground glass plate by a gaseous discharge lamp constructed in a multiple grid array, or alternatively an electro-luminescent sheet may be used to provide a large area of uniform illumination.
Patent GB-1132471-A (GB)
Title: Ornaments or indicia having fastener studs
Inventor: BROWN TREVOR JOHN
IPC: B60R13/00
Filed: 1965-07-07
Abstract: 1,132,471. Signs. VAUXHALL MOTORS Ltd. 2 June, 1966 [7 July, 1965], No. 28742/65. Heading G5C. [Also in Division E2] An ornament or indicium is made of synthetic resin material and has two hollow fastener studs 3 for press-fitting into spaced holes in a support, each stud having an outside surface which is capable of snap engagement with its hole. As shown the outside surface of each stud, from an oval shape in a first radial plane VI-VI intermediate its length, changes smoothly in shape in both axial directions respectively to circular in second V-V and third VII, VII radial planes on opposite sides of the first radial plane and the portion of the stud between said second and third planes extends radially outwardly to form a pair of shoulders for snap engagement with the hole. In an alternative form in said first plane the oval shape of each sheet has a minor axis less than, and a major axis not greater than, the diameter of the circular shapes, so that the stud has a waist in the first plane. The ornament or indicium may be metal plated.
Patent GB-332132-A (GB)
Title: Improvements in or relating to dust bags for suction cleaners
IPC: A47L9/14
Filed: 1929-09-23
Abstract: 332,132. Hoover, Ltd., (Assignees of Ballou, H. R.). March 18, 1929, [Convention date]. Paper and like bags.-Iu manufacturing bags from paper or like fibrous material, the paper is folded in longitudinal pleats C<2> and joined at C<3> to form a collapsable bag. To form a neck, two' sides are folded at H and bent over as shown in Fig. 13. The other end is closed by folding over at G and securing by means of a clip E as in Fig. 9. Other methods of closing are described in which eyelets, rivets, or stitching are employed. The neck of the bag may be strengthened by fitting a cuff C<4>. A further modification states that the paper may be folded into box-pleats.
Patent GB-519859-A (GB)
Title: Apparatus for annealing wire
IPC: C21D9/62
Filed: 1938-10-04
Abstract: 519,859. Annealing wire. COOK, J.. Oct. 4, 1938. No. 28829. [Class 72] In an apparatus for annealing wire, the wire B is fed from a drawing die A over a sheave D through a tube E round a pulley J mounted in a water tank I and then over a pulley L, current being supplied by leads C, K to the die A and pulley J. During the progress of the wire through the tube E it is protected by steam produced by water supplied to the tube. In one form, Fig. 2, the tube is provided with a restricted portion Q and an enlarged portion R, water being supplied to the latter by a pipe U provided with an overflow pipe V, steam being generated in the part Q by the heated wire passing downwardly through the same. The wire is then cooled in the chamber R and leaves bv an opening T in a plug S. In a second form, Fig. 3, for very.thin wire, water is supplied to a chamber 2<1> by a pipe 4<1> with an overflow pipe 4<1> and steam is supplied by a pipe 3<1>. In a modification of the form shown in Fig. 2, the tube.is composed of an inner tube rotatable in an outer tube, both tubes being provided with longitudinal slots which may be caused to register when an intermediate portion of the wire is to be treated. A similar modification of the form shown in Fig. 3 is also described. The treated wire leaving the tank. It may be passed through a second cooling tube 0 supplied with water by a pump N.
Patent GB-944257-A (GB)
Title: Improvements in or relating to controlled drive arrangements with electromagnetically operated engaging device members
IPC: F16D67/06
Filed: 1961-08-10
Abstract: 944,257. Clutch-brake combinations and control; friction clutches. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Aug. 10, 1961 [Aug. 11, 1960], No. 28915/61. Headings F2C and F2L. In a control for an electromagnetic clutch/ brake in a slipping drive for magnetic tapes, there is overlap of the excitation of the windings 3, 5 of driving clutch and stationary brake pole members 4, 6 during the transition from driving to braking and vice versa. In Fig. 8 the windings 3, 5 are excited through potentiometers 14, 15 having sliders 16, 18 controlled by a lever 17, the pivot pin 17a between the lever 17 and the slider 16 being adjustable in a slot 16a to provide excitation overlap in which the current in one winding rises as that in the other falls. Alternatively control may be through grid controlled valves wherein the overlap is adjustable by grid bias. In Fig. 4, clutch and brake armatures 7a, 7b, rotatable with, but axially slidable with respect to, a driven member 2, are constantly urged into light engagement with the pole members 4, 6 by a spring 9. In Fig. 5 (not shown), a single armature is constantly lightly gripped between the brake pole member and a spring-urged clutch pole member which is rotatable with, but axially slidable with respect to, a driving member. In Fig. 6 (not shown), the brake armature is spring urged towards the brake pole member, and the clutch pole member integral with a belt pulley is spring urged towards an axially fixed clutch armature; and for bi-directional drive a further and oppositely rotated clutch pole member and a co-operating further armature may be added. In Fig. 7, the pole member and armature mating faces are respectively provided with a friction coating 12 on an inset ring 11 and a hard smooth, e.g. chromium, layer 13, the remaining iron surfaces of the mating faces being ground back during the running in process and during normal wear of the coating 12 and the layer 13.
Patent GB-519233-A (GB)
Title: Process for the manufacture of unsaturated compounds of the cyclopentano-polyhydrophenanthrene series
IPC: C07J75/00
Filed: 1938-10-05
Abstract: 519,233. Unsaturated cyclopentanophenanthrene compounds. SCHERING AKT.-GES. Oct. 5, 1938, No. 28933. Convention date, Oct. 5, 1937. [Class 2 (iii)] Ethenyl compounds of the cyclopentanopolyhydro-phenanthrene series are prepared by the partial hydrogenationof compounds of this series which contain on the carbon atom-17 a side chain including a triple bond. Reducing agents which are used include any agents which are known to be capable of converting a triple carbon to carbon bond into a double bond. Agents specifically mentioned include catallytically activated hydrogen, in which case there may be used as catalysts nickel, with or without a carrier, palladium or platinium black, or nacent hydrogen such as produced by zinc dust in alcohol. In examples (1) #<5>.<6>- 3:17-dihydroxy-17-ethinyl-androstene is reduced in methanol solution with a nickel catalyst to give #<5>.<6>-3:17-dihydroxy- 17 - ethenyl-androstene. (2) In a similar manner to example (1) 3:17-dihydroxy-17-ethinyl androstane is converted into the corresponding 17-ethenyl compound. (3) A methanol solution of 3-acetoxy- 17-ethinyl-androstane is reduced to the corresponding 17-ethenyl compound by hydrogen in the presence of a palladium black. (4) Zinc dust is added to a boiling methanol solution of #<5>.<6_>3: 17 -dihydroxy-17 -ethinyl-androsteneand the product refluxed for 24 hours. (5) 17- ethinyl-isoandrostandiol-(3-17) is reduced as described in example (1) to the corresponding 17-ethenyl compound. (6) An alcoholic solution of 17-ethinyl-oestradiol-3:17 is shaken with hydrogen in the presence of a nickel catalyst to give 17-ethenyl-oestradiol-3:17. Specifications 468,123 and 488,814 are referred to.
Patent GB-648025-A (GB)
Title: Improvements relating to toys
IPC: A63H3/08
Filed: 1948-11-08
Abstract: 648,025. Constructional toys. WYATT, E. R. Nov. 8, 1948, No. 29016. [Class 132 (iii)] A card from which models may be built is formed with a number of removable pre-cut parts, the parts A to I, Fig. 1, being slotted in a manner permitting them to be assembled as shown in Fig. 2, so that the planes of adjoining parts are disposed at right-angles. The body of the card remains otherwise intact. The card may be of sheet plastic, plaster board, celluloid, wood, plywood or metal. The assembled parts may represent an animal, bird, road vehicle, aeroplane, ship or building.
Patent GB-377031-A (GB)
Title: Improvements in or relating to breathing appliances of the self-contained type
IPC: A62B9/00
Filed: 1931-10-19
Abstract: 377,031. Respiratory apparatus. DAVIS, R. H., 187, Westminster Bridge Road, London. Oct. 19, 1931, No. 29020. Addition to 371,278. [Class 81 (ii).] The self-contained breathing apparatus according to the parent Specification is provided, according to the present invention, with a cooling device between the inspiratory air fitting on the breathing bag and the mouthpiece. The cooler may consist, as shown in Fig. 1, of two tubes 8, 9 in parallel, between the outlet fitting 6 on the bag 1 and a fitting 10 carrying a relief valve 16 and connected by a pipe 12 to the mouthpiece. In modifications a single serpentine cooling tube may be used or the tubes may be arranged vertically, as shown in Fig. 5. The tubes in each modification may be of corrugated brass or copper and short connecting pieces 14, Fig. 8, of a nonconductor such as rubber may be placed between the fitting 6 and the cooling tubes. The fitting 6 may carry an oxygen connection and the relief valve be placed on the inlet fitting of the bag.
Patent GB-376122-A (GB)
Title: Improvements in and relating to electric lamp bulbs and luminescent discharge tubes,and process for manufacture thereof
IPC: H01J5/08
Filed: 1931-10-19
Abstract: 376,122. Electric lamps. CONOCE, C. and CONOCE, T., 23, Boulevard Anspach, Brussels. Oct. 19, 1931, No. 29031. Convention date, Aug. 11. [Class 39 (ii).] Bulbs.-In producing a reflecting coating of silver upon a part of the external surface of an electric lamp bulb or luminescent discharge tube and protecting the silver in known manner with a second coating of copper or other metal, this second coating is applied electrolytically. In an example the bulb is washed in a dilute solution of stannous chloride, rinsed in distilled water, dipped for 2-5 minutes at 18-25‹ C. in a silvering bath, dried, rinsed and copper-plated using a voltage of about 5, the silvered surface constituting one electrode. The silvering bath is prepared by mixing a solution, obtained by adding sugar to a boiled aqueous solution containing sulphuric acid and alcohol and boiling again, with a solution obtained by adding an aqueous solution of sodium hydroxide to an aqueous solution containing ammoniacal silver nitrate. The electrolyte for the copper plating is prepared from copper sulphate, sodium hydroxide, and seignette salt.
Patent GB-505155-A (GB)
Title: Improvements in or relating to depth stop for countersinking, boring, drilling, and similar devices
IPC: B23B51/10
Filed: 1938-10-07
Abstract: 505,155. Depth stops for drills &c. ROTERBERG, W. Oct. 7, 1938, No. 29102. Convention date, Oct. 7, 1937. [Class 83 (iii)] A depth stop for a boring, drilling, countersinking, &c. device consists of a freely rotatable sleeve which is adjustable in height and is provided on one side with a segmented cut out portion extending to the lower end of the sleeve and forming a flattened portion of such width as to leave the tool entirely free. The stop consists of a sleeve e rotatably attached to the shank b of a tool a by means of a collar d screwed on the shank and adjustably secured thereto by a lock nut c. A ball bearing f receives the axial thrust of the sleeve and a spring ring g the lateral thrust. The lower end of the sleeve is cut away at el to enable the tool to be seen, the inner edge of the opening being in line with the side of the smallest tool to be used, and the upper part of the sleeve is flattened at e<2> to enable the device to be used adjacent an obstruction p on the work, the base of the flat being in line with the side of the largest tool a to be used. Further recesses e<3>, whose side walls are tangentially arranged, are provided in the lower end of the sleeve for the escape of cuttings. The sleeve e may rotate with the tool.
Patent GB-1502951-A (GB)
Title: Brush gear for electrical machinery
IPC: H01R39/36
Filed: 1975-08-29
Abstract: 1502951 Electric railway current collectors INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 29 Aug 1975 [1 July 1974] 22174/74 Heading B7L [Also in Division H2] Brush gear in an electrical machine incorporates liquid metal 23 for passing current between a support 16 and a brush assembly movably mounted on the support. In the slip ring arrangement shown, the liquid metal 23 is contained in a flexible housing formed by inner/ outer bellows 21/22 joined, e.g. welded, to the support 16 and to a brush holder 13b. The brush holder 13b is joined to a bolt 14 which may be positively driven by turning a nut 19, thereby to adjust a fibre brush 13 relative to a slip ring 10. The brush gear may be used with fixed rail vehicle systems.
Patent GB-152230-A (GB)
Title: Improvements in or relating to conductor-rails for electric railways or the like
IPC: B60M1/04
Filed: 1919-11-24
Abstract: 152,230. Merz &. McLellan, and Redman, S. G. Nov. 24, 1919. Conductors for electricity; guards for conductors.-An insulating guard for conductor rails of electric railways &c. comprises a cover 3 moulded from bituminous or other mouldable insulating- material and serving to protect only or mainly the upper conductor surface. Lengths of wood or other material 4 and 5, which protect the side surfaces of the rails also engage the sides of the cover 3 and prevent the flowing of the mouldable material by heat. Refined asphalt rock with the addition of bituminous oil for fluxing purposes is particularly suitable for the top cover. The parts 3, 4 and 5 may be secured to a spring clip 6 for attachment to the rail. The cover is especially suitable for " under contact " type of conductor rails such as 1. Specifications 7591/12 and 13801/12 are referred to.
Patent GB-1409266-A (GB)
Title: Annular fluid pressure seals
IPC: F16J15/56
Filed: 1972-06-22
Abstract: 1409266 Seals; piston packing JAMES WALKER & CO Ltd 18 June 1973 [22 June 1972] 29291/72 Headings F2B and F2T An annular seal between relatively movable members comprises an elastomeric ring embracing or embraced by a sleeve having low friction characteristics (e.g. p.t.f.e.) and extending axially beyond it in one direction, the extension carrying a lip seal. As applied to a seal around a shaft 54, a p.t.f.e. sleeve 14 is held against the shaft by an elastomeric ring 10 fitting tightly in a housing 52, the ring having a lip seal 40. A shoulder 44 is traversed by radial grooves (46), Fig. 1 (not shown), to permit pressure equalization, the lip seal being on the pressure side. The seal arrangement is applicable to pistons (not shown).
Patent GB-908106-A (GB)
Title: Improvements in and relating to the production of organic compounds containing boronand phosphorus
Inventor: HOFMANN EUGEN
IPC: C07F9/6596
Filed: 1959-08-27
Abstract: Trimeric phosphinoborines believed to have the formula <FORM:0908106/IV (b)/1> where Y and Z are hydrogen or unsubstituted or substituted hydrocarbon radicals are prepared by reacting a compound APX where X is halogen and A represents two separate substituted or unsubstituted hydrocarbon groups or one substituted or unsubstituted hydrocarbon group which forms a ring with the phosphorus atom, with a metallic borohydride or a derivative in which not more than 3 of the hydrogen atoms are replaced by unsubstituted or substituted hydrocarbon radicals.  Specified substituents in hydrocarbon radicals are alkoxy, fluorine and aromatically bound chlorine.  Alkali metal borohydrides are preferred particularly lithium borohydrides.  A solvent may be used.  The reaction may be started at 0-100 DEG C., e.g. room temperature, and completed by heating to 150-200 DEG C. in vacuo. Examples describe the preparation of [(C6H5)2PBH2]3 and [(C2H5)2PBH2]3.
Patent GB-1441273-A (GB)
Title: Wheel-and-tape continuous casting machines
IPC: B22D11/06
Filed: 1973-06-20
Abstract: 1441273 Continuous casting I PROPERZI 20 June 1973 [28 June 1972] 29348/73 Heading B3F [Also in Division F2] A wheel-and-band casting machine has at least one coolant manifold 7, Fig. 3, at the inside and at least one manifold 11, Fig. 4, at the outside of the casting wheel rim 2 along the arc covered by the band 3, and valves 17, 17<SP>1</SP> for regulating the flow of liquid, from the manifolds to the spray nozzles 6, 10, one for each nozzle 10 or each pair of nozzles 6. Valve members 18 extend transversely of the nozzle axes and each has a screwdriver slot 24 at the end of a screwthreaded stem 21. The stem 21 of each valve 17 extends outside the manifold body 7 and a knob 23 is mounted frictionally on it to indicate the number of turns when setting the member 18 by use of the slot 24. A series of nozzles may be provided at the sides of the wheel to cool the rim from the side.
Patent GB-621517-A (GB)
Title: A process and apparatus for the operation of gas producers
IPC: C10J3/66
Filed: 1946-10-02
Abstract: 621,517. Gas-producers. OHLSSON, O. A. Oct. 2, 1946, No. 29354. Convention date, Aug. 8. [Class 55 (i)] Tarry gases trom gas producers are heated to decomposition temperature by combusting a part thereof, then mixing the hot combustion products with the remainder and introducing the mixture into the producer. In one form, the apparatus consists in a producer having an upper chamber 1 fed with fuel, particularly lignite, through a valve 2. Tarry gases, distilled from the fuel by hot gases rising from the combustion zone are extracted by a fan and pass towards burners 5. The gas stream is divided, part passing to the burners via pipes 7, where it meets air entering through pipe 8 and burns into chamber 6. The remainder passes through pipes 9 to a mixing zone 10, where it is decomposed by the sensible heat of the combustion products from chamber 6, the whole, at a temperature of about 1,000‹ C., passing via passages 11 and ports 12 into the producer. Here it rises through the glowing coke layer 13, the combustion products undergoing reduction. In the lower part 22 of the producer the remaining coke is gasified by air entering at 20 ; producer gas so formed mixes with the decomposed tarry gases at 13, and the mixture, less the part rising through shaft 1, leaves the producer through ports 14 and gas outlet 16. The Specification as open to inspection under Sect. 91 comprises also the preheating of primary air and steam supplied to the bottom of the producer, for example by heat exchange with the gases ieaving outlet 16. This subject-matter does not appear in the Specification as accepted.
Patent GB-1087509-A (GB)
Title: Improvements in and relating to key operated locks
Inventor: JAMES REGINALD
IPC: E05B21/00
Filed: 1966-06-30
Abstract: 1,087,509. Locks. LOWE & FLETCHER Ltd. June 30, 1966, No. 29356/66. Heading E2A. A lock comprises a plurality of pivoted tumblers 17 displaceable by a key and a metallic U shaped spring element 19 common to all the tumblers acting between part of the body of the lock and the tumblers and having one limb formed with a plurality of resilient fingers each of which bears against a respective tumbler to bias the tumblers to bolt locking condition. The slidable bolt 12 extends from a latch plate which slides on the inner surface of the rear plate of the body of the lock and has an abutment 16 which the tumblers engage. Turning the key turns the tumblers clockwise out of engagement with the abutment 16 and then displaces the bolt, the tumblers then reengage the abutment 16.
Patent GB-536294-A (GB)
Title: Improvements in or relating to fuel injection in internal combustion engines
IPC: F02M63/02
Filed: 1939-11-04
Abstract: 536,294. Fuel injectors. AMERY, G. Nov. 4, 1939, No. 29394. [Class 7 (iii)] Fuel delivered by passages 15, 17 to a nozzle 13 is controlled at 16 by a slide valve 19 actuated by fuel pressure admitted at 24 against the action of a spring 20. The fuel is supplied to the passage 24 by . a fuel pump and a distributing-valve. In a modification, a needle valve opened by the fuel pressure is arranged between the nozzle 13 and the valve 19. Leakage of fuel escapes by passages 31, 30. Specifications 468,372, [Group XXVIII], 501,632, 521,722 and 521,736 are referred to.