baber/WOPTO huggingface dataset:
Patent GB-500093-A (GB)
Title: Improvements in and relating to extrusion devices
IPC: B29C48/06
Filed: 1938-05-24
Abstract: 500,093. Extrusion machines. BRITISH THOMSON HOUSTON CO., Ltd. May 24, 1938, No. 15472. Convention date, May 26, 1937. [Class 87 (ii)] An extrusion device for covering electric conductors &c. with plastic material comprises a die having a central extrusion opening and a plurality of auxiliary passages surrounding the same for equalizing the flow of material. The material is fed by a worm 2 into a chamber 3 in one side of which a steel die 13 is retained by a threaded sleeve 9 while the other side is fitted with a guide holder 7 supporting a tubular sleeve 11. The die 13 contains a central opening 20 which determines the diameter of the covering and a plurality of smaller holes 21 which are arranged round the opening 20 and diverge outwardly from the chamber 3. A leader 12, secured to the end of the sleeve 11, is also supported in the die housing and has a central hole 25 for guiding the conductor wire and a number of parallel passages 26, arranged concentrically therearound, through which the material is fed. The die 13 and leader 12 have conical surfaces facing each -other. In a modification, Fig. 3, the passages 26 may be open on the outside and may lead into spaces 28 which reduce the resistance to the flow of material.
Patent GB-1197347-A (GB)
Title: A Fuze for an Explosive Device
Inventor: DIEHL KARL
IPC: F42C15/36
Filed: 1968-04-01
Abstract: 1,197,347. Fuzes. K. DIEHL. 1 April, 1968 [13 April, 1967], No. 15629/68. Heading F3A. A fuze particularly for hand grenades comprises a detonator 22 axially separated from a secondary charge 24 and releasable only after actuation of fuze triggering means, a fusible means 26 retaining a carrier 14 for the detonator against the action of a spring 16, and a pyrotechnical charge 13 ignitable to melt or soften the fusible means and thereby permit the detonator to move into the secondary charge. The charge 13 is ignitable by a detonator 10 which is struck by a spring loaded hammer 9 following withdrawal of a pin 5 and ejection of a plate spring 6 and handle 4. The detonator 22 is ignited when the voltage generated by the heating of a piezo-electric cell 17 exceeds the ignition voltage of a spark gap separating the cell from an electrode 20 of the detonator. Alternatively, the cell and electrode may be connectable by an all-round, impact-responsive switch (not shown). The fusible means is formed by Wood's alloy, solder or synthetic resin and may be in the form of a tube. In another embodiment (Fig. 2, not shown) the fusible means is a soldered joint (36) and the detonator is ignited by a priming charge (27). Part of the heat reaching the fusible means is transmitted through the wall of the carrier 14.
Patent GB-333910-A (GB)
Title: An improved method of and means for reproducing sound
IPC: H04H60/04
Filed: 1929-05-18
Abstract: 333,910. Morison, G. E., and British Talking Pictures, Ltd. May 18, 1929. Systems for transmitting music &c. - A potentiometer arrangement A, B, for coupling a source 20 or a pair of sources 20, 19, such as thermionic valves to an amplifier 21 or other circuit, comprises means for increasing the impedance of one circuit 2, 5<1>, 20, LT- and simultaneously decreasing the impedance of a parallel circuit 2, 5, 19, LT- in such a way that the output impedance Z remains constant and substantially equal to that of 19 or 20. The Specification gives details as to the calculation of the resistance values of the sections 4. In the application of the invention shown in Fig. 1, the potentiometer may be connected by a switch 7 either to electromechanical pick-ups 14, 15 with individual controlling potentiometers 8, 9 and scratch-filters or to the valves 19, 20 which ampiify the signals from an electro-optical pickup. Normally operation of the arm 2 fades out signals from one source while bringing in those from the other, but a switch 6 enables either of the sources 19 &c. to be replaced by an equivalent resistance 22. The position of switch 6 is indicated on lamp or other indicators 35 - 37. Specification 288,142 is referred to.
Patent GB-780280-A (GB)
Title: Wide range radio frequency tuner
IPC: H03H5/00
Filed: 1955-06-01
Abstract: 780,280. Variable tuning circuits. ALADDIN INDUSTRIES, Inc. June 1, 1955 [June 21, 1954; June 21, 1954], No. 15698/55. Class 40 (8). [Also in Group XL (c)] A wide range, i.e. 54 to 890 Mc/s., radiofrequency tuner comprises a variable inductance 6, Fig. 1, mounted in a cavity 2 which is arranged to behave as a resonant quarter-wave re-entrant line at the higher end of the range. The coil 6 is formed on the end of a conductive tubular post 5. Both the post and the coil are formed by depositing conductive material on an insulating tubular former, the conductive coat being covered by a protective layer of low-loss dielectric material. As the frequency increases the coil 6 is progressively enveloped by a conductive tube 10 which is movable axially by means of the cam and lever mechanism 18, 22. At the lower end of the range the right-hand end of the tuning tube 10 moves within a conductive tubular coupling member 16 which is held by an insulating supporting member 17. V.H.F. (54 to 470 Mc/s.) energy applied to the coupling member 16 at the terminal 27 is capacitively coupled to the tuning tube 10 and the coil 6. The input terminal 28 is connected to an output loop 32 by a feed-through capacitor 34 which forms a parallel resonant circuit with the coil 6 at the lower end of the frequency range. At the upper end of the range the coil 6 is completely enveloped by the tube 10 which then forms the inner conductor of a resonant re-entrant line. The line is loaded by the capacitance between the end 14 of the tube 10 and a short tubular extension 12 at the base of the cavity 2. V.H.F. energy applied through an input loop 29 is extracted by output loop 32 which at these frequencies is earthed through the capacitor 34. In a modification, Fig. 6, suitable for application to a triode oscillator, the coupling to coil 91 takes the form of conductive rings 102, 104 arranged in capacitative relation to the coil. The ring 104 is capacitatively coupled to the end wall of the cavity 88 by means of a conductive flange 106 spaced dielectrically from the wall. A conductive tube 96 mounted to envelop a variable portion of the coil 91 is provided with an enlarged end 100 which, at the upper end of the frequency range, forms a variable capacitance with a tubular extension 98 of the cavity 88.
Patent GB-672849-A (GB)
Title: Improvements in aircraft
IPC: B64C9/32
Filed: 1950-06-23
Abstract: 672,849. Controlling aircraft. WEAVER, C. L. June 23, 1950, No. 15734/50. Class 4. The tail end of the fuselage of an aeroplane carries four pivoted flaps 40, 41, 42, 43 which may be actuated independently for directional control purposes and simultaneously for braking. Independent operation of the flaps is effected by cables 40b, 41b ... connected to panels 40a, 41a ... surrounding the pilot's seat and operated by body movements of the pilot, while simultaneous operation is effected by vertical movement of a frame 51 which engages the inturned lower ends of the panels 40a.... The mainplanes 2 are movable about a spanwise axis 13 by the engine through a clutch transmission, while small auxiliary surfaces 7 mounted above the mainplanes are operated independently by hand levers 9. The braking effect of the flaps 40 ... may be supplemented by a tail parachute 29 normally stowed in a compartment 30b at the rear of the fuselage. The parachute is operated by unwinding a cable 29b from a reel 35 and opening a valve 29x to admit air into the compartment 30b. Deflection of the parachute to permit its entry into the stowage compartment is effected by opening an air escape valve 38 in the crown of the parachute by a cable 29c.
Patent GB-593667-A (GB)
Title: Process and apparatus for separating gas mixtures
IPC: F25J3/04
Filed: 1945-06-20
Abstract: 593,667. Separating gas mixtures. LINDE AIR PRODUCTS CO. June 20, 1945, No. 15777. Convention date, Aug. 1, 1944. [Class 8 (ii)] In a process for preventing the accumulation of high-boiling point impurities such as carbon dioxide and hydrocarbons in a vaporising zone during the separation of a gas mixture, such as air by low-temperature rectification and wherein the air is. separated into an impurity-free gas fraction and an impurity-containing liquid fraction which is continuously or intermittently filtered and thereafter vaporised to form a liquid concentrate containing the balance of the impurities, this liquid concentrate is filtered continuously or intermittently and the resulting filtrate fed into the vaporising zone. In an apparatus for the generation of liquid oxygen compressed air after traversing an after cooler 17 and the high pressure tubes of a heat exchanger 18 is divided so that half is further cooled by an expansion engine 37, and the remainder passes through a heat exchanger 32 and the whole passes through a scrubber 39 from the base of which the impurity-containing liquid fraction flows by conduit 41 to duplicate filters 42, 43 constructed as described in Specification 559,252. The filtered liquid fraction is fed to the vaporising zone 71 surrounding a condenser 73 and formed in ar auxiliary condenser C. The resulting liquid concentrate is pumped along a conduit 87 and mixed with the impurity containing liquid entering the filter in such proportion that the oxygen content of the filtrate is not more than 50 per cent. by weight. The impurity-free gas from zone 71 is fed into the base of a rectitication column R comprising lower and upper columns 50, 54 between which is an oxygen evaporation chamber 53 from which gaseous oxygen is fed along a conduit 58 to the condenser 73, thence either to an outlet 83, or back to the chamber 53. Gaseous nitrogen leaves the upper column 54 by a conduit 60 to flow through the heat exchangers 32, 18. The filters 42, 43 may be purged of solid impurities by a backflow of warm dry nitrogen from a conduit 95, and brand conduits 96, 97 controlled by valves 96<1>, 97<1>.
Patent GB-643717-A (GB)
Title: Improvements in or relating to centrifugal separators, particularly centrifugal cream separators
IPC: B04B11/06
Filed: 1947-06-16
Abstract: 643,717. Centrifugal separators. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. June 16, 1947, No. 15782. Convention date, June 24, 1946. [Class 23] The supply can 22 of a cream separator has a discharge nozzle 23 normally positioned above anc projecting into the separator bowl 20 and the support 28 for the can is moveable to facilitate access to the bowl without removal of the can. The can may be raised by means of a pedal 44, and is held in the raised position by a latch 47 A lug prevents the support from turning until the can is in the fully raised position. The can is fitted with the discharge valve described in Specification 643,716. The can and the support may be rotated about a vertical axis to displace the nozzle from its position above the bowl.
Patent GB-144738-A (GB)
Title: Improvements in electricity generating and ignition apparatus for internal combustion engines
IPC: F02P1/00
Filed: 1920-06-12
Abstract: 144,738. Moses, W. B. June 29, 1917, [Convention date]. Baths and reservoirs.-In electric ignition and current generating equipment particularly applicable to Ford engines in which a generator 14 is secured by its end to a bracket 10 arranged transversely of the engine 1 and fitting over the timing- gear housing 8, the ordinary cover of which is removed, lubricant is admitted to the engine through a removable filler spout 20, which is held over an aperture in a hollow part of the bracket 10 by a spring finger 21. The hollow bracket conveys the lubricant to the gear housing 8 and to an outlet leading to the engine casing.
Patent GB-1177446-A (GB)
Title: A Pianoforte Pin and Rail Assembly
Inventor: KONDO MASARU
IPC: G10C3/12
Filed: 1968-04-03
Abstract: 1,177,446. Pianofortes. NIPPON GAKKI SEIZO K.K. 3 April, 1968 [7 April, 1967], No. 16098/68. Heading G5J. A pin and rail assembly forming part of a piano keyboard has a channel-shaped rail 1 with a plurality of holes 2 spaced along its top 3, in which are pins 4 held vertically in position by a curable synthetic resinous material 5 in the channel 1a. The resin is run into the channel 1a and allowed to solidify, so fixing the position of the pins 4. The metal rail 1 may be either single channel (Fig. 2, not shown), or double channel, as shown; if the former, protrusions may be formed along the top edges of the rail, forming an upper channel which may also be filled with resin. The synthetic resin may be thermosetting, such as an epoxy or polyester resin, or a mixture of polyester resin, shortfilament glass-fibre, and calcium carbonate, this mixture having a thermal expansion coefficient similar to that of the metal in the rail. Prior to the addition of resin, pins may be inserted in the holes, the surround of which is then crimped to produce a tight fit. Alternatively, a force-fit in a triangular or rectangular hole may be employed.
Patent GB-1093391-A (GB)
Title: Improvements in gas convector fires and the like
Inventor: GREIG DAVID
IPC: F24C1/14
Filed: 1964-04-18
Abstract: 1,093,391. Air heating stoves. UNITED GAS INDUSTRIES Ltd. June 29, 1965 [April 18, 1964], No. 16166/64. Addition to 1,028,701. Heading F4S. The invention comprises a modification of the air-heating heat exchanger described in the parent Specification arranged in the rear of a gas convector fire, closed stove or other radiant heating appliance. The modified heat exchanger comprises two shallow pan elements 7, 8 that face one another and are closed by a common plate 9 having an opening or openings 17 in the lower end thereof to afford communication between the pan elements 7, 8 and an opening or openings 18 level with the exhaust gas inlet and outlet at the upper end to permit a portion of the hot gases to pass directly through the heat exchanger to rapidly warm the exhaust flue 10 when the fire is lit. A guide plate 15 which is either integral or attached to the common plate 9 serves to maintain separation of the air flows flowing over the front and back of the heat exchanger. The outer and inner surfaces of the bases of the pans 7, 8 may have formed thereon corrugations or ribs extending in the direction of the air and gas flow to increase the heat transfer. The rate of air flow through the appliance may be increased by a fan.
Patent GB-899294-A (GB)
Title: Improvements in concrete finishing machines
Inventor: FISHER JOHN MCNEAL
IPC: E01C19/42
Filed: 1959-05-12
Abstract: 899,294. Road finishing machines. LAING & SON Ltd., JOHN. Aug. 11, 1960 [May 12, 1959], No. 16218/59. Class 107 In a machine for finishing concrete roads, a transversely extending belt supporting paddles adapted to shear off excess concrete is mounted in front of an oscillating smoothing beam. As shown, a belt 11 carrying paddles 12 passes over rollers 13 and 16 supported by a smoothing beam 10. Where, as shown, the road has a cross fall the rollers are located at a higher level on the higher side so that concrete which during earlier compacting has migrated to the lower side is deposited on the higher side. Surplus concrete is carried over guide surfaces 18 and discharged clear of the formwork 17.
Patent GB-236376-A (GB)
Title: Improvements in machines for cutting, relieving or reliefgrinding hobs
IPC: B24B3/12
Filed: 1924-07-07
Abstract: 236,376. Brown & Sons (Huddersfield), Ltd., D., Sykes, A., and Kitchen, H. E. July ,7, 1924. Backing-off lathes.-The machine described in Specification 27694/12, [Class 60, Grinding or abrading &c.], is modified to enable it to cut circumferential relief on gear cutting hobs by the provision of means to move a lathe tool gradually towards the work and quichly away therefrom a determined number of times corresponding to the number of gashes in the hob during each rotation thereof. The tool is adjustably mounted nn a head 3, which is angularly adjustable by slots 3<4>. The head 3 is slidable on ways b<1> on a slide b towards or from the work by means of an adjustable block 3<2> depending from the head engaging a slot c<2> in a lever c pivoted to the slide at b<2>. The cam d engages a cut-away block c<1> so that, as it rotates, the head receives a gradual movement towards the work until the nose of the cam engages the, cut-away part, whereupon a spring imparts a quick return to starting position, the shock beisig absorbed by a dash-pot device c<6>. A worm 37 rotates the work and is carried by a sleeve 38 driven from a shaft 38<3> from the change-speed shaft. The lead, screw for traversing is driven from sleeve 38 through gearing 45, 46, 48. 50, 52, shaft 53. change gears, shaft 55, and gear 56, as described in Specification 27694/12, [Class 60, Grinding or abrading &c.], The cam d is driven from the gear 46 through gear g, suitable change gears, shaft h, gearing h<1>, i, k, shaft 1, gearing n, o' and shaft o<2>, which latter drives the shaft of cam d. Between the shaft and gear n is a clutch formed by a sleeve m on the shaft urged by a spring o against the boss n<1> of the gear n. The engagement lasts while the gear n is free to be driven, but if the gear is held against rotation, the sleeve m rides over the boss n<1>. Thus. for each revolution of the work, the lever c will move the tool to and from the worh a number of times corresponding to the number of gashes in the hob and determinable by the change gear between the gear g and shaft h. To co-ordinate the movements of the tool with the spiral angle of the gashes in the hob, a worm wheel r, fast on the casing j of the gears i, is connected by suitable change gear with a gear q on shaft 55, thus imparting to the casing j a rotary movement which varies the drive, to the shaft and cam. Backward rotation of the cam d due to backward rotation of the work is prevented by the engagement of the cam nose with the cut-away part of the block c<1> and the consequent separation of the cam m, n<1>.
Patent GB-1384595-A (GB)
Title: Switch arrangement for indicating the presence of a load on an automotive vehicle seat
IPC: B60R22/48
Filed: 1972-04-07
Abstract: 1384595 Retractive switches SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 7 April 1972 [22 April 1971] 16257/72 Heading H1N A switching arrangement, for indicating the presence of a load on the seating surface 10 of an automobile seat, comprises a retractive switch 16 attached to the spring suspension 12 of the seat with its actuating member 23 held in the actuated switch position, (against a spring restoring force), when the seat is not loaded, by a cable 15 connected between the seat frame 14 and the spring frame 20 of the seat suspension 12. Switch 16 is rigidly attached to a part of the suspension 12 by a clamping sleeve 21 and displaceably attached to another part of the suspension 12 by a hook 24, to allow for the spring bars 22 separating when the seat is loaded. Cable 15 is attached to frame 20 via a tension spring 26. Downward movement of switch 16, on loading of the seat, allows the actuating member 23 to return to its unactuated position and give an appropriate signal via a make, break or changeover contact. There may be a plurality of switching arrangements for the one seat, or one switch 16 may have a plurality of cables 15.
Patent GB-1185998-A (GB)
Title: D.C. Electric motors of small axial dimensions
Inventor: CARTIER GASTON
IPC: H02K23/40
Filed: 1967-04-10
Abstract: 1,185,998. Electric motors. G. CARTIER. 10 April, 1967 [18 April, 1966], No. 16267/67. Addition to 1,117,370. Heading H2A. A winding E of conducting wire whose ends constitute D.C. supply terminals 26, 27 replaces the permanent magnet in the electric motor defined by Claim 1 of the parent Specification 1,117,370.
Patent GB-1358401-A (GB)
Title: Food supplement and food product containing assimilable iron
IPC: A23L1/304
Filed: 1971-05-21
Abstract: 1358401 Food supplement VITAMINS Inc 21 May 1971 [25 May 1970] 16277/71 Heading A2B A particulate food supplement comprising an edible metabolisable fat containing an assimulable iron compound may be prepared by dispersing the compound in the molten fat, and subdividing and cooling the dispersion. The fat has a melting point of 100-250‹F. Also present may be vitamins and other micro nutrients. Food products, especially cereal products, may be coated with the supplement.
Patent GB-1466463-A (GB)
Title: Catalyst and process for the dimerization of diolefins
IPC: C07C7/177
Filed: 1974-04-11
Abstract: 1466463 Dimerizing dienes SOC NATIONALE DES PETROLES D'AQUITAINE and INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 11 April 1974 [12 April 1973] 16337/74 Heading C5E [Also in Division B1] Diolefins may be dimerized in the liquid phase at 20-120‹ C. using a catalyst which is the reaction product of a transition metal carbonyl M<SP>1</SP> m (CO)<SP>-</SP> n  where m and n are integers and a co-ordinated transition metal halide or pseudohalide of formula [M<SP>2</SP>L p X q ] r  where L is a co-ordinate group that can furnish 3 electrons, e.g. nitrosyl, trihaptoallyl or substituted or unsubstituted pentadienyl; X is halogen, cyanide, sulphocyanide or isocyanate; p and q are 1, 2 or 3; and r is an integer (see Division B1). The dimerization may be effected at 0À5-10 kg./cm.<SP>2</SP> with a diolefin to halide or pseudohalide molar ratio of about 300 in the presence of a solvent, e.g. hexane, cyclohexane, benzene, toluene, ethyl ether, anisole, tetrahydrofuran or the hydrocarbon product of the dimerization. The diolefins may be conjugated, e.g. butadiene, isoprene or dimethyl butadiene or non-conjugated, e.g. norbornadiene. The feed may be a mixture of butadiene and butene obtained from refineries. The examples describe the dimerization of butadiene to give mainly vinyl-4-cyclohexene together with a minor proportion of cyclooctadiene and some cyclododecatriene- 1,5,9 and C 12+  oligomers.
Patent GB-148280-A (GB)
Title: Improvements in and relating to the starting of electric arcs in lamps, rectifiers and the like
IPC: H05B41/22
Filed: 1920-06-17
Abstract: 148,280. Siemens & Halske Akt.-Ges. July 21, 1919, [Convention date]. Arc lamps; vacuum tubes. - An incandescent wire h serving to initiate an arc between electrodes e, f in a closed casing is fed with current by a transformer, the primary winding of which is connected to the electrodes. As soon as an are is established, the reduction of electric pressure due to the steadying-resistance w causes the wire h to cease glowing. The primary and secondary windings may be connected either at one end of each as shown, when the wire h will temporarily act as cathode towards the electrode f, or at their mid points, when the electrodes e, f will act alternately as anodes until the are strikes. The wire h may be short and thick, and may be straight, the ratio of transformation being selected accordingly. The invention is applicable to rectifiers and lamps, in which there may be a high gas pressure.
Patent GB-824947-A (GB)
Title: Method and device for the automatic control and supervision of the initial period and the performance of electric glow discharge processes
IPC: B04C5/28
Filed: 1956-05-28
Abstract: 824,947. Control systems for glow discharge apparatus. ELEKTROPHYSIKALISCHE ANSTALT B. BERGHAUS. May 28, 1956 [May 28, 1955], No. 16471/56. Drawings to Specification. Class 38 (4). [Also in Group XL (c)] Workpieces are subjected to a cycle of operations in a low-pressure glow discharge vessel governed by a programme controller, whereby the workpieces are subjected to gradually increasing voltages during each stage of the cycle, the increase being automatically arrested for a predetermined period in the event of non- uniform discharge. A succession of arrests within a given time is arranged to set back the controller to a predetermined point in the cycle. The controller is arranged to switch from the end of one stage to the beginning of the next by means of a signal which is not transmitted until each stage is completed.