baber/WOPTO huggingface dataset:
Patent GB-201212-A (GB)
Title: Improvements in locks
IPC: E05B21/00
Filed: 1922-12-07
Abstract: 201,212. Duncombe, J. Dec. 7, 1922. Lock mechanism, tumbler-type.-In a lock having a dead bolt locked in either position by a pivoted spring-pressed tumbler, the tumbler spring is mounted on a projection on the tumbler and bears on the stump of the tumbler which works in a gated slot in the bolt, and the length of the key bit which operates the tumbler is less than that which operates the bolt. The tumbler 1 pivoted to the casing at 8 has a stump 4 working in the gated slot 3 of the bolt 2. The spring 6 which keeps the stump in one of the end recesses 5 of the slot 3 is mounted on the pin 7 on the tumbler 1, one limb bearing on the casing and the other on the stump 4.
Patent GB-1007914-A (GB)
Title: Process for the separation of olefin polymers and copolymers from their solutions
IPC: C08C2/06
Filed: 1964-03-13
Abstract: A rubbery polymer is separated from a solution of the polymer in an organic solvent, by forming an aqueous emulsion of the solution wherein the minimum water content is 20%, and spraying the emulsion under pressure into a stripping zone under a head of warm water under agitation, and also spraying superheated steam into the zone under pressure.  The solutions generally contain "low-pressure"-type catalyst residues.  The solvent may be a monomer or a hydrocarbon solvent such as n-decane.  The preferred emulsifying agent is sodium 2-ethylhexylsulphosuccinate.  In Example (1) an ethylene-propylene copolymer dissolved in n-decane and made with a catalyst system consisting of Al(isobutyl)3 and VCl4 is recovered as a fine powder. In Example (2) a terpolymer of ethylene-propylene-cyclo-octadiene-1,5, dissolved in cyclooctadiene, is separated, whilst in Example (3) a cis-1,4-polybutadiene is similarly recovered.  The Specification includes a flow diagram of a continuous method for effecting the process.
Patent GB-566987-A (GB)
Title: Frequency control system
IPC: H03C3/14
Filed: 1943-07-02
Abstract: 566,987. Converting electric currents. PHILCO RADIO & TELEVISION CORPORATION. July 2, 1943, No. 10771. Convention date, July 2, 1942. [Class 38 (ii)] [Also in Group XL] The quadrature voltage required for the grid of a reactance valve in a frequency control system is obtained from the junction of a resistance and reactance connected in series across the tuned circuit of the oscillation generator, the junction being connected to the reactance valve cathode through a parallel combination of a, similar resistance and reactance. As shown in Fig. 4, the tuned circuit 3c of the valve generator 1c has the centre-point of its inductance coil earthed, and has a resistance 48 and condenser 49 connected across it. The junction is connected to the grid of the reactance valve 16c through a blocking condenser, and to the earthed cathode through a parallel combination 50 of a resistance equal to 48 and a condenser of the same capacity as 49. The anode of the reactance valve is connected to a coil coupled to the tuned circuit 3c; and a control voltage for varying the reactance of the valve is applied to its grid. In Fig. 1, the oscillator comprises a pair of valves 1, 2 associated in push-pull relation with the coupled grid and plate coils 4, 3 which have their mid-points at earth H.F. potential. The series network 18, 19 are connected as before across the tank coil 3, and the junction 22 is connected through the parallel network 20, 21 to the earthed cathodes of a push-pull pair of reactance valves 16, 17. These have their grids connected to the junction 22, and their plates to opposite ends of the tank coil 3. Control voltages in push-pull relation are applied at 32, 33 to the grids of valves 16, 17. In other arrangements, a second series network similar to 18, 19, but in inverted position, is connected across the tank coil 3, and the grids of the reactance valves 16, 17 are connected to the respective junctions 22, the parallel network 20, 21 being also cluplicated. In this case, the control voltage is applied in the same sense to both grids, Fig. 2 (not shown). In a further arrangement, Fig. 3 (not shown), the anodes and cathodes of the valves 16, 17 are connected in parallel across a section of the tank coil 3, and the control voltages are applied in push-pull to the grids. Specification 490,625, [Group XL], is referred to.
Patent GB-691496-A (GB)
Title: Improvements relating to flow control devices
IPC: F16K7/06
Filed: 1951-05-08
Abstract: 691,496. 'Pinch cocks. FRANCIS, E. M. May 5, 1952 [May 8, 1951], No. 10786/51. Class 135 A pinch cock comprises a base d on which a tube f is seated, a member, such as a loop 1, encircling the base and the tube, and a manually releasable spring member which engages the lower part of the loop to urge it away from the base so that the upper part of the loop is urged to the position in which it flattens the tube against the base. In the illustrated embodiment, the base is integral with the spring member g, h which pulls the loop to the flow cut-off position, and the base d slides into channels in a curved guard a surrounding the tube. The part g of the spring serves as a handle which, when pressed towards the base, releases the loop l from the tube. The loop can be held in the released position by inserting it in recesses c in the guard. The base may comprise a strip of, ebonite, celluloid, polythene, &c. with a flat spring of lead-coated steel pivoted thereto and loaded by a helical or spiral spring. The base and guard may be integral with a slot in the rounded portion thereof in which the loop is located.
Patent GB-566805-A (GB)
Title: Improvements in electric impedance relay means and in protective equipment for electrical power systems utilising same
IPC: H02H3/40
Filed: 1943-07-02
Abstract: 566,805. Protective cut-out systems. KAUFMANN, M., HODGKISS, J. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 2, 1943, No. 10795. [Class 38 (v)] An impedance-responsive relay device, suitable for protecting feeders against fault, comprises a network in which rectified voltages representative of, respectively, the voltage impressed across the impedance and the resulting current therethrough, are balanced against one another, the out-of-balance voltage being applied to an attracted-armature or other electromagnet relay. The current effect is applied across terminals 2 to a full-wave rectifier 3 which is in series with the relay 4 across a diverter resistance 5, the voltage effect being applied either directly across resistance 5 in opposition to the current effect, or, as shown, across a load resistance 7 which is shunted by 5 and a further, less-sensitive, relay 6. The voltage effect may be rectified by an arrange: ment such as 3, but preferably, in order to make the arrangement as independent as possible of phase-angle between current and voltage waves, the terminals 1 are connected to a resistance-capacity arrangement 8 ... 11 to yield a balanced-voltage, three-phase system which is fully rectified at 12 before passing to resistor 5 or 7. A preferably-saturable choke 13 and adjustable resistor 14 are series-connected across terminals 2, and to prevent excess voltages being developed, the latter may be shunted by a non-linear resistance 18 such as " Metrosil " (Registered Trade Mark). The primary of transformer 15 may be connected across the impedance either directly or through an auxiliary transformer. The terminals 2 may be connected by a current transformer 16. In a three-phase application, line-to-line faults can be detected by employing a further current transformer 17 and connecting it to 2 in opposition to 16. Complete three-phase systems involving this arrangement at both the supply and load end of a feeder are described, Figs. 6, 7 (not shown), the impedance relays being used as starting relays for controlling directional relays for transmitting locking signals to the far circuit-breaker in the known way. A further line-to-line fault protective system has the current side of the network energized by mesh-connected auxiliary transformers, the star-connected primaries of which are energized by star-connected line current transformers, Fig. 7 (not shown).
Patent GB-1291953-A (GB)
Title: Apparatus for rolling metal tubes
Inventor: WERNER JOHN A
IPC: B21B25/06
Filed: 1970-03-06
Abstract: 1291953 Rolling KOEHRING CO 6 March 1970 10874/70 Heading B3M Apparatus for rolling tubular metal blanks comprises loading arms 83 and 84 which are pivoted upwardly to cause the arms 84 to pickup a tube blank 45 from a rack 90 and align the blank with a mandrel 25 in the space between the latter and a retracted tail stock 36. A loading cradle assembly 44, tail stock 36 and extractor assembly 40 are moved towards head assembly 23 to advance the blank on to the mandrel 25 where it is clamped in a chuck 26. The arms 83 and 84 are lowered and the chuck and mandrel are rotated while rollers 34, 34<SP>1</SP> and 34<SP>11</SP> are brought to a pre-set depth by hydraulic cylinder 60. A carriage 30 supporting the rollers 34, 341 and 34<SP>11</SP> is then advanced thus driving the rollers on to the blank to subject it to a radial and axial deforming pressure. When the carriage 30 is near the free end of the blank the rollers are opened and the carriage returned to its start position where the rollers are reset to a greater depth for a second pass. On completion of the second pass the tube extractor assembly 40 moves towards the finished tube so that jaws 81 clamp the tube after which the direction of the retractor is reversed to pull tube from the mandrel 25. As the tube extractor retracts the tail stock 36 is moved backward with the extractor and tube fastened to it while the arms 83 and 84 are raised to support the tube. When the tail stock 36 has retracted completely jaws 81 are opened and the arms 83 and 84 are opened in the direction to unload the tube on to a conveyer 91.
Patent GB-258195-A (GB)
Title: Improved elastic element for the resilient wheels of motor or other vehicles
IPC: B60B9/04
Filed: 1926-04-24
Abstract: 258,195. Coste, J. F. P. Jan. 16, 1926, [Convention date]. Spring wheels. - A spring device for use in resilient wheels of the type described in Specification 205,894 wherein springs carried by the rim abut against shoulders of recesses formed on the wheel discs, comprises spring plates 1, 1<a> - - 1<n>, which are progressively of decreasing lengths, the plates being held together, as shown, by a, bolt or rivet. The outer spring plate 1, and preferably the other plates, are formed with curved ends. Fig. 1 shows the spring placed in position in the wheel.
Patent GB-145002-A (GB)
Title: Improvements in or relating to tools for turning crank pins
IPC: B23B5/06
Filed: 1920-04-20
Abstract: 145,002. Burton, G. K., and Stolpe, W. H. June 17,1919, [Convention date]. Portable turning-apparatus.-A tool for turning crank-pins without removing the crank shaft from the engine has means whereby the cutting action automatically ceases as soon as the crank-pin is turned to the desired size. One half of a ring 2 is provided with cutting-teeth 3 while the other' half has a smooth face A which acts as a guide and gauge. Each half is bolted to a holder 1 which embraces the ring and is formed of two parts hinged together and secured by a thumbnut 11. The device may be turned by a handle 13 screwed into the holder or by an operating member 16 of which spring-pressed dogs 21 engage two sets of ratchet notches 15 cut in the flanges 14 of the ring holder.
Patent GB-730718-A (GB)
Title: Gentleman's tie case
IPC: A47G25/78
Filed: 1952-05-01
Abstract: 730,718. Boxes. ASHBY, J. E. April 29, 1953 [May 1, 1952], No. 10951/52. Class 18. [Also in Group VII] A necktie holder comprises an oblong case A having a hinged or loose lid, each tie being lightly wound round a thin plate C and retained in position thereon by a metal clip B. Each plate has projections E whereby it may be positioned within the case with the projections resting in slots at the sides. The slots G are provided in fillets H extending throughout the length of the case.
Patent GB-233691-A (GB)
Title: Improvements in steering or head tubes for cycles, motor cycles and the like vehicles
IPC: B62K19/32
Filed: 1925-04-28
Abstract: 233,691. Soc. Anon. E. Bianchi. May 8, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Heads, of the type which are pressed and welded from a sheetmetal blank, are formed during the pressing operation, with circular enlargements e, f at the two ends to provide seats :for the ball bearings.
Patent GB-1412964-A (GB)
Title: Aircraft fuel tank assemblies and pump arrangements therefor
IPC: F04D7/00
Filed: 1972-03-10
Abstract: 1412964 Centrifugal pumps LUCAS INDUSTRIES Ltd 28 Feb 1973 [10 March 1972] 11184/72 Headings F1C C1E C4A2 and C4F In an aircraft fuel tank 10, a centrifugal pump 11 including a pair of frusto-conical elements 13, 14 on its rotor 12 to separate an air/vapour cone formed in the pump from the liquid fuel outlet 15 of the pump, is arranged with the outlet 16 for the air/vapour connected to a passage 17 forming a grid system 18 adjacent the tank bottom and with perforations 19 to allow escape of the air/vapour. The vapour is reabsorbed into the fuel, and the air bubbles entrain air dissolved in the fuel. A vent valve 21, allows escape of air and vapour from the tank.
Patent GB-352940-A (GB)
Title: Improvements in voltage regulating transformers
IPC: H01F29/12
Filed: 1930-04-08
Abstract: 352,940. Regulating transformers. KOCH & STERZEL AKT.-GES. and FISCHER, F. J., 40, Zwickauerstrasse, Dresden, Germany. April 8, 1930, No. 11209. [Class 38 (ii).] In a regulating transformer in which the primary and secondary windings 15, 12 are arranged respectively on relatively movable core parts 13, 11, and a series of short-circuited auxiliary windings 18, 19, 20 is provided to co-operate with the secondary in the low voltage e positions to reduce inductive voltage drop, the auxiliary windings are disposed in slots formed in an extension of the core 13 which forms a return path for the flux when the core 11 carrying the secondary is in the low voltage positions. Compensating windings 16, 17 arranged and connected as shown are provided. In order that the transformer may be used for supplying both positive and negative boost, a switch 22 for reversing the energization of the primary winding is provided, the switch being interconnected with the means for shifting the cores so that the primary connections and the core-shifting means are reversed simultaneously when the cores are in the minimum voltage position.
Patent GB-1117266-A (GB)
Title: Supersonic intake for a jet propulsion engine
Inventor: PIKE MALCOLM ROY
IPC: F02C7/042
Filed: 1967-03-09
Abstract: 1,117,266. Boundary layer control. ROLLSROYCE Ltd. 9 March, 1967, No. 11217/67. Heading F2R. [Also in Division F1] The guide vanes 17 at the intake of a supersonic gas turbine jet propulsion engine have apertures 33 in the walls of fixed vane portions 18 and apertures 34 in the walls of angularly movable vane portions 19 to draw off the boundary layer into the vane interiors.
Patent GB-653856-A (GB)
Title: Improvements in nozzles for vacuum cleaners
IPC: A47L9/02
Filed: 1948-04-23
Abstract: 653,856. Vacuum cleaner nozzle. ELECTROLUX, Ltd. April 23. 1648. No. 11243. Convention date, May 17, 1947. [Class 8(i)] [Also in Groups V and XXII] A vacuum cleaner suction nozzle comprises an air outlet socket 13 and a body portion 10 having longitudinal channels 11 formed by a partition 15 cut away to form a gap 16 and recessed adjacent the socket 13 at 25a. The partition 15 may be replaced by several partitions having gaps 16 in zig-zag relation. A brush may be fitted within the nozzle on one side of a partition. A mould for casting the nozzle is described (see Groups V and XXII).
Patent GB-591687-A (GB)
Title: Improvements in or relating to methods of setting knitted fabric articles comprisingsynthetic linear condensation polyamide fibres
IPC: D06M23/14
Filed: 1945-05-03
Abstract: A knitted fabric article comprising synthetic linear condensation polyamide fibres, and having a moisture content not greater than its normal moisture content, is supported in a loose and unstressed condition, disassociated from any means for determining the shape, and is subjected while so supported to the setting action of substantially dry heat at a temperature within the range of 250 DEG F, to an upper limit approaching the melting point of the polyamide. For the heating, heat from electric heaters or gas flames, or electronic heating generated by high-frequency electric currents, may be used.  The heat may be caused to affect the fabric by radiation, convection, or conduction.  At the beginning of the dry heat treatment, the knitted nylon hosiery or other fabric article may contain its natural moisture content.  The preferred temperature of the heat treatment is about 325 DEG  F.  The article may subsequently be subjected to a hot liquid treatment at temperature below the temperature range of the dry heat treatment, and may be reset to final shape in the presence of an aqueous medium and at a temperature higher than that of the previous liquid treatment, but below the temperature range of the dry heat treatment.  During the dry heat treatment, nylon stockings may be impaled by the toes on needles mounted on conveyers so that they may be passed through the heating chamber.  Subsequent wet treatments may include scouring, removal of fugitive tints used for marking, and dyeing. The final setting may be effected with saturated steam at 240 DEG  F., the articles being supported on shaping forms.  Specification 547,034 is referred to.
Patent GB-794545-A (GB)
Title: Improvements in or relating to ultra-high frequency tubes
IPC: H01J25/40
Filed: 1956-04-13
Abstract: 794,545. Magnetron oscillators. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 13, 1956 [April 14, 1955], No. 11312/56. Class 39(1). An ultra-short wave oscillator tube comprises an axial negative electrode 10, Fig. 1, in the form of a cylinder covered over at least a part of its outer surface with a layer of emissive material, the diameter of the cylinder being an appreciable fraction of that of the envelope 1, an anodic delay-line 13, Fig. 2, rolled in the form of a cylinder coaxially with the electrode 10 and having two separate ends 14, 18, pole pieces 23, 24 creating a magnetic field B parallel to the axis of the electrode 10, and means for creating a radial electric field, the interaction space defined by the delay-line 13 and the electrode 10 affording an endless propagation space for the electrons emitted by the negative electrode and absorption means being connected to at least one of the ends of the delay line. As shown the u.h.f. output 7 is connected to the end 14 of the delay line and the absorbtion means are provided by coating the fingers 15-18 of the interdigitated line 19, 20 with lossy material. Preferably a short-circuit is provided between the output 7 and the connection between the delay line 14 and the absorbing means 18. The tube functions as a backward wave oscillator and its frequency may be varied by varying the strength of the electric field or of the magnetic field or of both. To avoid fluctuation in beam current due to variations in the electric field when altering frequency the negative electrode 10 may be provided with a limited thermonic emissive portion 36, Fig. 8, located opposite the alternated portion 16-18 of the delay line which is insulated from the remainder of the line by a mica plate 39 and provided with its own constant but adjustable voltage supply 44. In another embodiment the ends of the delay line are separated by an absorbing block. In a further embodiment the active ends of the delay line are separated by further delay line elements having a separate absorbing body located in their electro-magnetic field. Alternatively an external attenuator 55, Fig. 11, may be connected to one end 51 of the delay line leaving a gap between this and the other end 50 to which the output 7 is connected. The delay line may be of simple interdigital type or of a ladder-type consisting of alternately large and small hairpins. Specifications 690,890 [Group XXXVI], 699,893, 761,768 and 761,850 are referred to.
Patent GB-242883-A (GB)
Title: Improved device for supplying liquid to evaporating apparatus
IPC: B01D1/22
Filed: 1925-05-01
Abstract: 242,883. Naamlooze Vennootschap Nederlandsche Installatie Maatschappij Therma, and Petersen, A. O. H. May 1, 1925. Film evaporators.- Liquid is supplied in film form on the interior surface of an ex. ternally-heated evaporator a from a ring b supplied with liquid from a pipe c and having an annular slot b<1> in its under side.
Patent GB-774332-A (GB)
Title: Article of clothing having a collar of adjustable size
IPC: A41B3/00
Filed: 1955-04-20
Abstract: 774,332. Wearing-apparel. KUENZEL, H. April 20, 1955 [Nov. 5, 1954], No. 11400/55. Class 141. In a garment for men's wear having a turned-down collar 5 and a front opening closed by overlapping portions 2a, 2b provided with a sliding clasp fastener 3a, 3b arranged off-centre, adjustability of the collar is permitted by incomplete closure of the fastener 3a, 3b. The upper edges 2c, 2d of the front portions are cut so as to slope upwards to 'and join the seam line 8 of the collar at a, b, the top edges of the extensions 2a, 2b sloping similarly. The lines 2c, 2d may be curved or straight.
Patent GB-436659-A (GB)
Title: A new or improved door or gate opening device
IPC: E05F15/04
Filed: 1934-04-16
Abstract: 436,659. Electrically - controlled fastenings. LEE, E. C., 36, Blenheim Park Road, South Croydon, and CONSTABLE, HART, & CO., Ltd., Broadway Building, Westminster. April 16, 1934, No. 11451. [Class 44] In an electrically-operated fastening for doors and the like, of the kind comprising a spring catch, operating automatically in the usual way, and means actuated by a solenoid or the equivalent to release a spring which withdraws the catch from its engaging position, the catch is formed in two parts, one being axially slidable relatively to the other against a spring and constituting the door catch while the other is acted on by a spring tending to move the catch as a whole against the action of an electrically-controlled detent. In the form shown, the door catch, which engages a hook member 9 on the door, is constituted by a hollow part 8 slidable in a casing 16 on the lintel, while the other part of the catch comprises a plunger 13 urged upwards by two springs 12, attached to a pin 11 thereon and to the upper part of the casing, but normally held down by a spring-pressed detent 14 engaging a shoulder on the plunger. The catch 8 is slotted at 10 to clear the pin 11 and is therefore free to slide upwards on the plunger 13, against the action of a spring (not shown) contained in the part 8 and bearing against the lower end of the plunger, in order to allow engagement of the door member in the usual way. When a solenoid 23 is energized by a hand or treadle switch, the detent 14 is withdrawn by the armature 22 and the plunger 13 is then forced upwards by the springs 12, carrying with it the part 8 to free the door. The plunger is reset by a hand or cable operated lever 26 engaging its upper end. Specification 5354/14, [Class 44], is referred to.