baber/WOPTO huggingface dataset:
Patent GB-349615-A (GB)
Title: Improvements in or relating to apparatus for administering electrical current for therapeutic purposes
IPC: A61N1/32
Filed: 1930-03-01
Abstract: 349,615. Electrotherapeutic appliances. HARRIS, A. H., 19, New Abberley Street, Dudley, Worcestershire, and TAYLOR, W. G., 128, Coopers Lane, Smethwick, Staffordshire. March 1, 1930, No. 6799. [Class 81 (ii).] In therapeutic electrical apparatus arranged for direct application and containing an induction coil and battery arranged in a casing, the applicatory electrodes are arranged on a pad-like fitment which acts as a push-switch, so that the pressure applied in using the apparatus completes the circuit. According to the arrangement shown in Figs. 1 and 3, one electrode 11 is connected to a plunger 12 which makes contact with a plate 6 connected to one end of the induction coil 2, and the screw pillar 7 contacting with the trembler blade 9. The other electrode 14 is connected to a plunger 13 making contact with one pole of the battery 3 by means of a plate 10. The pad 18 is held out of contact when not in use by springs 15, 16, the screws 21 attaching the pad to the bottom of the casing 17 being arranged to act as stops. The applicatory electrodes are of the type shown in Fig. 4. According to the Provisional Specification, the strength of the current can be regulated from tappings on the coil by means of a switch arm which also actuates an on-and-off switch.
Patent GB-834199-A (GB)
Title: Improvements in or relating to the production of glass shapes
Inventor: SMITH ARTHUR JAMES
IPC: C03C3/32
Filed: 1956-03-05
Abstract: Arsenic trisulphide glass produced in the manner described in Specification 834,198 is moulded by slumping, the mould surface being covered with aluminium foil.  A single piece of the glass is placed in a foil-lined mould and the temperature raised to 310 DEG  C. over a period of 20 hours, maintained at 310 DEG  C. for 9 hours while the glass softens and assumes the shape of the mould and then reduced at 12.5 DEG  C. per hour.  The glass is then removed from the mould and the foil peeled off.
Patent GB-622181-A (GB)
Title: Improvements relating to gas-turbine-engines
IPC: F01D5/08
Filed: 1947-03-11
Abstract: 622,181. Gas turbine plant. LOMBARD, A. A. March 11, 1947, No. 6826. [Classes 110(i) and 110(iii)] In a gas turbine plant, cooling air for the bearings is extracted from an early stage of the axial-flow compressor and cooling air for the turbine rotor from a later stage. The extractions are made through the compressor rotor into the hollow compressor shaft. In the plant shown in Fig. 2, air for cooling the hollow turbine rotor 60, 61 is extracted through passages 67 into tubes 70, within the compressor shaft 16, and thence through the hollow turbine shaft 27 to ports 64. The tube 70 is formed with a head 69 with radial parts fitting in the shaft 16 and carrying'the bores 72. Air for cooling the bearings is extracted through passages 36 and ports 37 into the hollow shaft 16, passes the radial parts of the head 69 and emerges through ports 38 into a chamber 39 around the bearing 18. The air passes along the chamber 20 and divides, part going through passages 31 around the bearing 29 and part going through the annular space between the shaft 27 and a sleeve 41 which carries the inner bearing member. The streams then unite and pass round a baffle 49 into a chamber 50 and escape to atmosphere through a pipe 51. The turbine rotor is formed of two discs 60, 61, clamped together by a hollow bolt 63. Some of the air reaching the bolt 63 passes through an axial bore 75 and flows between the downstream face of the rotor and a cover plate forming part of the exhaust cone 33. In a plant using a solid turbine rotor, only air for cooling the bearings is extracted and is led to the space within the sleeve 41 through the hollow turbine shaft. The turbine and compressor shafts are connected by a spherical coupling 28. The compressor rotor, Fig. 3, comprises, as described in Specification 621,418, several discs 81 united by spacing rings 83. The bosses of the discs have-each a cylindrical seating 87 at one end and spline teeth 82 at the other end which engage corresponding teeth on the hollow shaft 80. At the stage where the higher pressure extraction is made the spacing ring is divided into two portions 83b with disc extensions 88 providing an air passage. The air passes through ports 91 into a space between the hollow compressor shaft and a sleeve 92 and thence through passages 95 to the tube 98 by which it is led to the hollow turbine shaft. The divided spacing ring 83a at the stage where the lower pressure extraction is made has slots 84 through which the air passes to the open space between the rotor discs. The air then goes through ports 86 into the hollow compressor shaft and, around the walls of the passages 95, to the down-stream compressor shaft bearing.
Patent GB-919261-A (GB)
Title: Self-supporting films or adherent coatings, process for making same, and electrical capacitors made therewith
IPC: H01G13/00
Filed: 1959-02-27
Abstract: Self-supporting films less than 0,0025 mm. thick consisting of organic thermoplastic polymeric materials are produced by depositing on a clean surface a thin layer of a colloidal dispersion of the material in a liquid having a boiling point sufficiently low to permit its removal from the surface at a temperature below the fusing temperature of the material and being such that no residue is left after evaporation which will modify the material, removing the liquid from the layer of the dispersion by evaporation, heating the residual material to a temperature within the range 600 DEG  to 750 DEG F. to fuse the material into a continuous layer, subjecting the layer to pressure while it is hot to compress it into a non-porous state and a thickness of less than 0,0025 mm., and detaching the layer from the surface.  The polymeric materials are preferably the halogenated polyethylenes, such as polytetrafluoroethylene.  In an example, a stainless steel endless travelling belt, after being freed from dirt, oxide and oil, thereafter passed through a 2% aqueous solution of phosphoric acid at about 100 DEG F., washed with water and a neutralizing solution, is passed through a 40% aqueous dispersion of polytetrafluoroethylene containing a minor proportion of acetone, the dispersion being maintained at 150 DEG F. and the belt travelling through the dispersion at a rate such that a film 0,0001 inch in thickness is deposited on the belt. The wet belt is then passed first through a drying oven maintained at about 150 DEG F. and then through a finishing oven maintained at about 680 DEG F.  The porous film thereby formed on the belt is converted to a non-porous form by passing the coated belt while still at about 680 DEG F. through the nip of a pair of pressure rollers which compress the film to a thickness about one-half of that when it is in the fused state and the film is then cooled, stripped from the belt and wound on a storage roll.  Laminates may be produced by leaving the film adhering to a flexible supporting surface (see Group VIII).  Films produced in the prescribed manner may be used for the manufacture of electrical capacitors (see Group XXXVI).  Reference has been directed by the Comptroller to Specification 850,885.
Patent GB-826473-A (GB)
Title: Improvements in or relating to liquefied gaseous fuel containers or receptacles
Inventor: GODDARD JOHN ANSELL
IPC: F23Q2/52
Filed: 1956-03-06
Abstract: 826,473. Recharging liquefied gaseous fuelled lighters. RONSON PRODUCTS Ltd. March 6, 1957 [March 6, 1956], No. 6982/56. Class 75(3) The fuel chamber of a gas lighter is filled with an accurate quantity of liquified gaseous fuel from a hollow receptacle provided with a non-return valve operated by the application to it of a fuel supply tank and an outlet valve which opens an inlet valve of the lighter fuel chamber so that the lighter may be filled by virtue of the pressure difference between the interiors of the hollow receptacle and the lighter fuel chamber. The hollow receptacle shown in Fig. 1 has the exact capacity for one filling of a gas lighter fuel chamber  and comprises an outer tubular member 1 of metal, glass or a synthetic resinous material transparent or otherwise and an inner tubular member 5 apertured at 6 and 7. The member 1 is clamped between sealing washers 4 by end caps 2, 3 screwed member 5. A non-return inlet valve 11 of any suitable constructional form provided with means permitting the venting of the container to atmosphere during filling is screwed into the end cap 2 which cap is also threaded to receive a dust cap 12. An outlet valve 14 of any suitable constructional form which will mechanically open the inlet valve of a gas-lighter fuel chamber to allow the gas to flow from the receptacle to the lighter is screw threaded into the cap 3 which cap is also threaded to receive a dust cap 15. The receptacle is filled through the non-return inlet valve 11 from a bulk supply source. In a modification, Fig. 4 (not shown), the receptacle carries sufficient fuel for filling a number of lighters and the transparent member 1 is provided with graduations. An auxiliary valve operated manually or by a movable part of the inlet valve may be provided for venting the receptacle to atmosphere.
Patent GB-488843-A (GB)
Title: Improvements in television receivers
IPC: H04N3/237
Filed: 1938-03-05
Abstract: 488,843. Television receivers. NAAMLOOZE VENNOOTSCHAP PHILIPS'GLOEILAMPENFABRIEKEN. March 5, 1938, No. 6989. Convention date, March 8, 1937. Drawings to Specification. [Class 40 (iii)] The line frequency oscillator is coupled to the deflecting plates or coils over a circuit which passes the frame frequency. The cessation of line impulses during a frame impulse, causes the line oscillator to produce oscillations of greater amplitude which introduce a frame frequency component in the train of line oscillations and this component must be passed to the deflecting means if the first few lines of each scan are not to be displaced.
Patent GB-1034624-A (GB)
Title: Boat with inflatable hull-supporting tubes
IPC: B63B7/08
Filed: 1965-02-18
Abstract: 1,034,624. Boat with inflatable buoyancy tubes. HANS KLEPPER CORPORATION. Feb. 18, 1965 [Feb. 19, 1964; July 2, 1964; July 23, 1964], No. 7012/65. Heading B7A. In a boat consisting of a hull and an inflatable buoyancy tube-supporting the hull, the side walls are part cylindrical in cross-section and fit against the buoyancy tubes on the inboard side and on the top side. The buoyancy tube is attached to the sides of the hull by straps which are coupled by means of C-shaped joint clamps. In other embodiments guide ribs of beading formed on the straps engage in grooves at the longitudinal edges of the hull, or the retaining straps are permanently stuck to the concave peripheral surface of the edges of the hull. In each case engagement is effected after the buoyancy tube has been slightly inflated. Final locking is done by subsequently pumping up hard.
Patent GB-547055-A (GB)
Title: Improvements in water weed cutting launches
IPC: A01D44/00
Filed: 1941-06-04
Abstract: 547,055. Weed-cutting boats. HOWARD & DENNIS, Ltd., HOWARD, E. J., and DENNIS, C. June 4, 1941, No. 7059. [Class 113 (ii)] The propelling paddles 1 of a weed-cutting boat are fitted with cutting blades to form a combined propelling device and rotary cutter. In the arrangement shown the paddles 1 are carried by arms 3, 4 on paddle shafts 2 on each side of a frame 10 (not shown), cutting blades 8 being arranged along the tips of the paddles blades, which are inclined so as to throw the cut weeds outwardly. Additional cutters 12 may be disposed on the inside of each alternate paddle blade, while a reciprocating cutter as described in Specification 496,260, [Group I], may also be provided.
Patent GB-894402-A (GB)
Title: Improvements in or relating to travel cases
Inventor: BISHOP WILLIAM HENRY CHATTERLE
IPC: A45C3/00
Filed: 1958-03-05
Abstract: 894,402. Suitcases &c. GILCHRIST & FISHER Ltd. March 3, 1959 [March 5, 1958], No. 7082/58. Class 133. In the travel ease hat box &c. having a soft lid 1 connected along one edge to the body 2 while a zipped flange 5 takes over the rigid body frame along the remaining edges, the opposed ends of two zip fasteners 3, 4 meet at a cut 6 in the flange 5. The expandible gusset 7 extends behind the cut 6, which is covered by a tab 8 fitted with coacting fasterers 9, 10. Specification 894,401 is referred to.
Patent GB-716576-A (GB)
Title: Improvements relating to pulse generating circuits
Inventor: CHURCHILL JOHN LESLIE WESTON
IPC: H03K29/00
Filed: 1953-03-19
Abstract: 716,576. Pulse generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. March 19, 1953 [March 19, 1952], No. 7120/52. Class 40 (6) A circuit for generating a spaced pair of pulses comprises a pair of pulsing valves which are normally cut-off and which have each a normallyconducting control valve in their cathode circuit. When either of the pulsing valves is triggered to conduct to generate a first output pulse the alternate control valve is cut-off for a period determined by the time constant of its grid circuit, at the end of which the control valve conducts to cut-off the first pulsing valve and render the second pulsing valve conducting to generate the second output pulse. The Figure shows a pulsepair generating circuit in which initially valves V1A, V3A and V2B, V3B are conducting and valves V1B, V2B cut off and the positive biasing voltages E1, E2, E3, E4 are of progressively decreasing value. When a negative trigger pulse is applied at input A valve V1A is cut off and valve V1B conducts to generate the first negative output pulse at output A and a negative voltage is applied via capacitor C3 to cut off valve V3B. The voltage at point X, previously slightly above E4, is raised when valve V3B cuts off and a charging circuit is completed, Fig. 1A (not shown), so that the vo!tages at points X and Y increase with a time constant dependent upon the values of resistors R9 and the resistor R2 in parallel with capacitor C2. When the voltage at point Y reaches E2 it is clamped by diode V4a, the rise in grid voltage of valve V1B causes the cathode voltage to follow and thus the voltage of the grid of valve V2 to rise. When the voltage at point X, which rises towards the H.T. voltage with a time constant determined by the values of resistor R9 and capacitor C6, is caught by diode G2 at voltage E1, valve V3B conducts and also valve V2A. The fall in voltage at the anode of valve V2A when it conducts, cuts off valve V3A and generates the leading edge of the second output pulse which appears at output B and the drop in voltage at point X cuts off valve V1B to generate the trailing edge of the first pulse which is generated at output A. The voltages of the points P and Q will now rise in a similar manner to that in which the voltages of points X and Y increased the voltage of point P being caught at E1 and that of Q at E2 so that the grid voltage of valve V3A rises until V3A conducts and valve V2A is cut off thus terminating the second output pulse which is produced at output B and restoring the circuit to its initial condition. During the second output pulse at B capacitor C6 will have been charged and thus the rise in voltage at point X is not transmitted to valve V1B so that only one pair of pulses is generated. Rectifiers G5 and G6 prevent positive overshot in the triggering waveforms from triggering the circuit prematurely. If the negative triggering pulse is applied at input B the first of the spaced output pulses will be generated at output B and the second at output A.
Patent GB-416273-A (GB)
Title: Manufacture of derivatives of oxy-and amino-pyridine compounds
Filed: 1934-03-07
Abstract: Double compounds of oxy- or amino-pyridines with substituted barbituric acids are prepared by known methods.  Examples are given of the combination of (1) 4-oxy-5-nitropyridine and N-methyl-a -pyridone with diethylbarbituric acid in equimolecular proportions; (2) 2-ethoxy-5-acetylaminopyridine with diethylbarbituric acid in the molecular proportions of 2 : 1; (3) N-methyl-a -pyridone with phenylethylbarbituric acid in equimolecular proportions; and (4) a -aminopyridine with diethylbarbituric acid in the molecular proportions of 2 : 1.
Patent GB-972228-A (GB)
Title: Thermoplastic compositions
IPC: C08L35/06
Filed: 1963-02-22
Abstract: A thermoplastic composition possessing high thermic and mechanical properties comprises a mixture of at least one styrene-acrylonitrile copolymer and at least one butadiene-acrylonitrile copolymer, at least one of the copolymers being made using dimethyl fumarate as a third monomer. In the examples a butadiene-acrylonitrile copolymer is homogeneously mixed with a styrene-acrylonitrile-dimethyl fumerate copolymer together with a lubricant butyl stearate and an anti-oxidant di-ter-butyl-p-cresol and the product is granulated. Tubes, sheets and injection moulded articles are made with the composition.
Patent GB-554181-A (GB)
Title: Improvements in or connected with skid fenders for use in the launching of ships life boats
IPC: B63B23/36
Filed: 1942-05-30
Abstract: 554,181. Skid fenders. HUNT, J. B. May 30, 1942, No. 7367. Addition to 550,209. [Classes 113 (i) and 115] In a skid fender for launching a life-boat 8 comprising a tubular or other nosing iron or runner 7 connected at its upper end to one gunwale fitting, and at its lower end to a lashing wire or rope 17 engaging a second gunwale fitting, as described in the parent Specification, the runner 7 is fitted with a locating member 29 to abut against, or fit on, the keel 18. The member 29 may be adjustably clamped on to a flattened portion 24 of the runner 7.
Patent GB-767474-A (GB)
Title: Cooking stove selectively operable under direct or down draught
IPC: F24B5/08
Filed: 1955-03-14
Abstract: 767,474. Kitchen ranges. GUILLIER, M. March 14, 1955, No. 7398/55. Class 126 A cooking stove, operable with direct or down draught, comprises a firebox separated from two ovens by a transverse partition. a flue leading from the upper part of the firebox to an upper chimney outlet above the main oven, and a second flue leading from the top of the ashpit below the grate, between the upper main oven and a lower auxiliary oven, up the side of the main oven to the chimney .outlet, and dampers for controlling the flow of gases through the flues. Under direct or up draught conditions, primary air is admitted to the ash pit by opening a damper 20, and the products of combustion pass out of the top of the firebox past an open damper 40, either round a baffle 51 to an upper chimney outlet 38, or, if a damper 52 is closed, down the side of the main oven 21, between the ovens 21, 22 to,a lower chimney outlet 34. Secondary air is supplied at the inlet to the top oven flue by the hollow axle 41 of the damper 40. For down draught operation, the air inlet damper 20, and flue damper 40 are closed, cutting off the air supply through hollow axle 41, and an air inlet damper 19 at the top of the firebox, the damper 16 controlling a secondary air inlet 14 to a " combustion nozzle " 11 beneath the grate, and a flue inlet damper 26 are opened. According to the position of damper 52 in the upper flue passage, the combustion products pass through the baffled flue passage between the upper and lower ovens 21, 22 to the lower chimney outlet 34, or the main part of the hot gases flows between the ovens, up the side of the main oven 21, to the upper flue outlet 38. A baffle 25 below the outlet from the ashpit to the flue directs the combustion gases emerging - from the " combustion nozzle " 11. The down draught dampers 16, 19 and 26 are connected by linkages to a common operating handle 30, Fig. 6, mounted at the back of the stove, and a second operating handle 49 controls the updraught dampers 20 and 40. The arrangement may be such that the air inlet damper 19 at the top of the firebox is not completely closed when the dampers 16 and 26 are closed, so that a small amount of secondary air enters the top of the firebox when the stove is operating by up draught. A third handle 54 controls the damper 52 controlling the flow of gases in baffled stop flue. A boiler 56, Fig. 5, with a central passage 57 may be mounted at the front of the firebox so that, under up draught conditions, hot gases flow up the central boiler flue 57 to an outlet 57a, Fig. 6, to the top oven flue, while under down draught conditions, the rear face only of the boiler is heated.
Patent GB-796622-A (GB)
Title: Improvements in and relating to electric switches
Inventor: MILNER ERNEST
IPC: H01H23/06
Filed: 1956-03-09
Abstract: 796,622. Snap-action switches; switch cases; handles. N. S. F., Ltd. March 11, 1957 [March 9, 1956], No. 7451/56. Class 38 (5). The operating member 17 has a spherical part 28 by which it is pivotally mounted in a sleeve 18 on the casing 10, and hermetically sealed to the sleeve by a pair of elastic rings 30, 31 which are compressed by screwing a ring 32 into the sleeve. The rings may be of circular cross-section, as shown, or oval or square with the corner engaging the surface of 28. As shown, the member 17 supports a carrier 19 for a spring-plunger 20 which can be moved to either side to connect a contact 13 to contact 11 or 12 by way of movable member 15. Alternatively two members 15 may be operated. A sealing ring 27 facilitates panel mounting.
Patent GB-567400-A (GB)
Title: A method of building construction using metal open trussed bar joists as purlins and side sheeting rails
IPC: E04B1/35
Filed: 1943-05-11
Abstract: 567,400. Metalwork, Civil Engineers'. FROMSON, B. W. May 11, 1943, No. 7484. [Class 20 (ii)] Metal open-trussed bar joists 10 are disposed with their depth normal to the surface to be supported. Sagging is prevented by intermediate members, such as tie rods 13, secured by plates to the webs of the joists, or by cables anchored at the lower end and clamped to the successive joists. At the eaves and roofs adjoining joists are welded to plates 12, 15.
Patent GB-816061-A (GB)
Title: Improvements in and relating to electric contact spring devices particularly for electromagnetic relays
IPC: H01H50/54
Filed: 1956-03-09
Abstract: 816,061. Electromagnetic relays. CLAESSON, P. H. E. March 9, 1956 [March 11, 1955], No. 7517/56. Class 38 (5). In a contact device comprising at least one movable contact spring which is pretensioned to move and engage a fixed contact spring when permitted, e.g. by actuation of a relay, the pretensioning is such that the pressure at the point where the springs engage is at least thirty times, e.g. fifty times, the weight of the moving part of the movable spring. As shown in Fig. 1, energization of magnet 1 attracts the armature 2 pivoted at 40 so that actuator 9 is moved against the bias of return-spring 10 and contact springs 3, 6 move to engage fixed springs 4, 6 under their own tension. In another construction (Figs. 2, 3, not shown), a rotary disc controls four sets of change-over contact-springs each set comprising a central fixed spring and outer movable springs, the movable springs extending through clearance slots disposed around the disc. In another arrangement, Fig. 4, a movable U-shaped wire contact-spring 26 engages a U-shaped fixed contact-spring 27 at points 29, 30.