baber/WOPTO huggingface dataset:
Patent GB-357522-A (GB)
Title: Improvements in high potential transformers
IPC: H01F27/32
Filed: 1930-06-13
Abstract: 357,522. Transformers. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. June 13, 1930, No. 18212. Convention date, Oct. 15, 1929. Addition to 356,693. [Class 38 (ii).] Relates to voltage transformers for use on high tension circuits in which the high tension winding is arranged on an insulating spool 11 and the connection to the high voltage line is brought out from the inner layer of the winding as described in the parent Specification, and consists in encircling the spool body with a split metal cylinder 124 connected so as to form the first turn or layer of the high tension winding. The end of the cylinder opposite to that to which the winding proper is connected is provided with a tongue 119 that projects into the leading-out insulator 17 and is connected through a spring contact 123 with a fuse 27 provided within the interior of the insulator.
Patent GB-146330-A (GB)
Title: Needles or similar instruments for dental and surgical purposes
IPC: A61C5/40
Filed: 1920-07-02
Abstract: 146,330. Hauptmeyer, F. May 27, 1919, [Convention date]. Dental instruments; materials, special. - Consists in the use for nerve-extracting needles and the like of chromium-nickel steel alloys containing about 18 to 23 per cent of chromium, 5 to 10 per cent of nickel, and 0.1 to 0.4 per cent of carbon.
Patent GB-371214-A (GB)
Title: Improvements in pouring devices for use with bottles
IPC: B65D47/06
Filed: 1931-06-25
Abstract: 371,214. Pouring stoppers for bottles. BOWKER, R. P., 75, Charles Street, Sheffield. June 25, 1931, No. 18337. [Class 125 (iii).] A pouring device comprises a onepiece medallion 9 embraced by an air vent pipe 11 which is located in a peripheral groove therein. The outlet pipe 10 for liquid passes through the medallion which is secured solely by the two pipes. In a modification the pipe 10 occupies a similar peripheral groove on the opposite side of the medallion.
Patent GB-1068191-A (GB)
Title: Improvements in or relating to flip-top cartons
Inventor: HARRIS TREVOR ANTHONY
IPC: B65D5/32
Filed: 1964-05-04
Abstract: 1,068,191. Flip-top cartons. TAYLOWE Ltd. May 4, 1965 [May 4, 1964], No. 18404/64. Heading B8P. A flip-top carton is made from two blanks which form an outer and inner shell fitting one within the other and held together by folding a closure flap 16 on the inner shell over tabs 15 on the outer shell and retaining the flaps 16 in position by a tuck-in flap 17. The blanks are cut and scored to form the flip-top lid in a known manner, Figs. 5, 6 (not shown). The inner shell has an extension 18 on one side wall 13 which is folded to form a partition in the carton. If desired, the effective height of one of the compartments may be reduced by a false bottom (19b), Figs. 2, 4 (not shown), preferably integral with the inner shell.
Patent GB-630750-A (GB)
Title: Improvements in or relating to the measurement of magnetic field strength
IPC: G01R33/04
Filed: 1947-07-11
Abstract: 630,750. Magnetic tests. WESTERN ELECTRIC CO., Inc. July 11, 1947, No. 18481. Convention date, April 20, 1943. [Class 37] In a device for measuring magnetic field strength, three magnetometers, each comprising a wound core of low retentivity and high permeability, are mounted with their magnetic axes mutually perpendicular ; for example, along three adjacent edges of a non-magnetic cube (Figs. 1, 2, not shown). The magnetometers M1, M2, M3, schematically in Fig. 3, shown are excited by A.C. sources 1, 2, 3 through harmonic suppression filters 4, 5, 6 and feed the heaters of thermocouples T1, T2, T3 through amplifiers A1, A2, A3 and second harmonic pass filters 7, 8, 9. When a magnetometer axis is perpendicular to the magnetic field, no even harmonics are generated in the winding, while if the field has a component along the axis, even harmonics are generated of amplitude proportional to the field strength and to the cosine of the angle made by the latter with the magnetometer axis. The sum of the thermocouple output voltages is then proportional to the sum of the squares of the respective magnetometer outputs and consequently to the square of the field strength, and indicator 10 may be calibrated in field strength values. In modifications (Figs. 4, 5, 6, not shown) the magnetometers may have primary and secondary windings, double cores, or may be excited from the same A.C. source. The thermocouples may be replaced by a thermistor having three heaters and connected in a bridge network (Fig. 7, not shown), or a single heater responsive to the outputs of three magnetometers excited at different different frequencies (Fig. 8, not shown). Fig. 9 shows a modification wherein magnetometers M1, M2, M3 are excited by oscillator 11 through filter 18 and feed second harmonic voltages through filters 19, 20, 21 to control grids of parabolic rectifiers 22, 23, 24 the sum of the output currents of which is proportional to the magnetic field strength, so that the voltage drop across load resistance 27 produces a field-strength indication on D.C. meter 34, the standing deflection being bucked out by the voltage drop across resistor 28. Changes in the magnetic field strength produce variations of voltage across resistance 27 which are applied through low-pass filter 31, to amplifier 32, and rectified to deflect D.C. meter 33 according to the magnitude of the change. The device is applied to detection of submarines or mineral deposits by the changes produced in the earth's field.
Patent GB-834181-A (GB)
Title: Improvements in or relating to printed electric circuits
IPC: H05K1/05
Filed: 1958-06-10
Abstract: 834,181. Rotary distributers; switch contacts. WESTERN ELECTRIC CO. Inc. June 10, 1958 [June 12, 1957], No. 18511/58. Class 38 (5). [Also in Group XXXVI] A method of manufacturing a printed circuit (see Group XXXVI) is used to produce a switch plate for a high speed rotary switch or commutator. The required contact pattern is formed on to an auxiliary support 1, Fig. 8, and comprises a layer of rhodium 5 backed by a layer of nickel 6 and finally a layer of copper 7. An insulating base-plate 13, Fig. 17, consisting of melamine resin impregnated paper backed by phenolic resin impregnated paper is moulded over the contact pattern and the auxiliary support removed leaving the surface of the rhodium layer 5 flush with the surface of the insulating base-plate. The completed switch-plate is shown in Fig. 18.
Patent GB-1468204-A (GB)
Title: Plasma arc furnaces
IPC: C22B9/22
Filed: 1974-04-29
Abstract: 1468204 Arc furnaces N I BORTNICHUK V P DAVYDOV M M KRUTYANSKY V S MALINOVSKY and V A KHOTIN 29 April 1974 [14 May 1973] 18594/74 Heading H5H A method of stabilizing arc voltage in a plasma arc furnace in whose melting chamber a plasma arc is maintained extending through the gaseous atmosphere of the melting chamber from an electrode 3 towards the metal being melted comprises supplying gas, identical in composition with the gas filling the furnace melting chamber but cooler than that gas, into the melting chamber and embracing the plasma arc column along its entire length by the flow of this gas which is controlled by a power regulator 14 via a flow controller 11 to continuously stabilize the arc voltage. In the embodiment the stabilizing gas flow is obtained by extracting gas from the furnace melting chamber via ducts 8, cooling it in heat exchangers 9, passing it through a dust collector 10, the flow controller 11 and returning it to the melting chamber via the space between the plasma generator nozzle 5 and a surrounding housing 6 by a gas blower 13. A manually controllably gas valve 12 across the flow controller 11 is provided for cutting out the automatic control.
Patent GB-477955-A (GB)
Title: Improved method of fractional distillation
IPC: B01D3/10
Filed: 1936-07-06
Abstract: <PICT:0477955/III/1> A process of high vacuum distillation for liquids such as fish oils consists in moving the liquid condensate in cocurrent with the distillate vapours, and then in countercurrent in a conduit protected from the vapours before being again exposed to the vapours.  Apparatus suitable for the purpose comprises a series of baffle plates 2 in a column 1, each provided with a central aperture 2<1> turned at the edge to form gutters 3.  Between the plates 2 are arranged smaller plates 5 provided with central apertures 6 masked by plates 7 supported a short distance above them. The outer edges of the plates 5 are turned to form gutters 10, which are connected by conduits 9 to the tops of the plates 2, while the gutters 3 are connected by conduits 8 to the tops of the plates 5. The ascending vapours pass through the holes 2<1> in plates 2 and turning outwards towards the column 1 sweep liquid condensate on the plates 2 towards holes 4, through which it passes to the undersides of the plates, where it is swept by the vapours moving inwards into gutters 3, giving up some of its volatile constituents to the vapours.  The liquid passes down conduits 8 in countercurrent to the vapours on to the plates 5, where the inward flowing vapours sweep it towards the holes 6 through which it passes on to the undersides of the plates, where it is swept towards the gutters 10 by the outward flowing vapours, yielding some volatile constituents to the vapours. The liquid flows from gutters 10 down conduits 9 in countercurrent to the vapours on to the plates 2, where the process described above takes place again.
Patent GB-883863-A (GB)
Title: Stabilization of silica
IPC: C01B33/193
Filed: 1958-06-12
Abstract: The surface area of hydrated finely divided silica, which has been precipitated from aqueous alkali metal silicate solution, is stabilized by heating the silica for a period of 0,5-25 mins. at a temperature of above 100 DEG  C., preferably 120 DEG -300 DEG C., in a pressure vessel as an aqueous dispersion having a pH above 5.  The hot dispersion may be cooled by dilution with water at a temperature below 100 DEG  C.  The surface area of the silica treated may be 10-200 sq. m/gm. and its particle size may be 0,015-0,2 micron.  The treated silica may be washed with hydrochloric, sulphuric, nitric or acetic acid.  Specification 745,822 is referred to.
Patent GB-453008-A (GB)
Title: Improvements in and relating to pneumatic massage apparatus
IPC: A61H9/00
Filed: 1935-07-02
Abstract: 453,008. Air - pumps. DALONZO, A., 353, Reconquista Street, Buenos Aires, Argentine. July 2, 1935, No. 18893. [Class 8 (i)] [See also Groups VI and XI] A pneumatic massage apparatus comprises a pump 10, the outlet nozzle 11 of which is connectec by a conduit to an appli cator, whereby pulsations of relatively high frequency are impressed upon the contained air. The pump comprises a cylinder 17 and piston 18 connectec to an eccentric pin on a disc 21 mounted on a shaft 22 rotating at 600-1000 r.p.m. A groove 26 receives solid lubricant. Fixing lugs 28 and a domed cover 29 are provided. Reference has been directed by the Comptroller to Specification 22703/11, [Class 81 (ii)].
Patent GB-1179251-A (GB)
Title: Magnetic Recording Head.
Inventor: FINDEISEN HEINZ HELMUTH
IPC: G11B5/127
Filed: 1966-04-29
Abstract: 1,179,251. Magnetic recording heads. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. 25 April, 1967 [29 April, 1966], No. 18933/66. Heading G5R. A head comprises a primary magnetic circuit 45, having a winding 47 and a recording gap 48, and a secondary magnetic circuit 49 having two spaced limbs 50, 51 and a winding 52, the secondary circuit 49 being located with one limb 50 facing the. gap 48 and the parts of the primary circuit on either side thereof and the other limb 51 facing the surface of one limb 52 of the primary circuit, the tape (not shown) passing through a gap between the circuits and the signals to be recorded being fed to both windings. The effect is that the effective recording flux is concentrated in a narrow portion 61 of the gap between the two circuits.
Patent GB-914336-A (GB)
Title: Improvements relating to the stabilization of polyethylene
IPC: C07F15/04
Filed: 1959-06-03
Abstract: Polyethylene is light stabilized with a nickel phenol-phenolate of a pure bis(p-octylphenol) monosulphide, in particular of crystalline o,o1-bis(p-1,1,3,3-tetramethylbutylphenol) monosulphide.  The examples illustrate the effect on films of linear and branched-chain polyethylene, e.g. the per cent elongation before and after exposure to ultra-violet light. Specifications 471,590 and 898,890 are referred to.
Patent GB-422401-A (GB)
Title: Improvements in or relating to apparatus for controlling valves
IPC: A23L3/22
Filed: 1934-06-27
Abstract: 422,401. Fluid actuated valves. BERGEDORFER EISENWERK AKT.-GES. ASTRA-WERKE, Bergedorf, Hamburg, Germany. June 27, 1934, No. 19050. Convention date, June 28, 1933. [Class 135] Controlled by pilot or relay valve.-For effecting a rapid actuation of a valve moved by auxiliary power such as compressed air when the temperature of the fluid directed by the valve falls below or rises above a predetermined value, a heat-sensitive device in the conduit leading to the valve controls the outlet from a resilient corrugated chamber subject to the pressure medium, movements of this chamber acting through a snap device to apply the auxiliary power to the valve or to release it therefrom. The valve may be used for completely returning the milk issuing from a continuous-flow pasteurizing apparatus when the temperature of the outflow falls below the permissible minimum. A temperatureresponsive device 24 has a pin 23 engaging a valve member 22 which normally closes or restricts an orifice 21 in a member 2 leading from a space enclosed by a corrugated tube 1 secured to the member 2 and to a member 3 sliding in a guide 34 screwed to the member 2. Compressed air supplied through a pipe 29 passes through conduits 18, 19 and by expanding the tube 1 normally keeps the member 3 raised. Balls 14, 15 separated by a distance piece 17 are adapted to close alternately opposite ends of a passage 11, formed in a member 7, from which leads a passage 30 to the valve to be operated, the passage 11 being normally closed to the compressed air supply. The lower ball 14 is supported by a sliding member 10 having openings 31 to atmosphere. Grooves 4 in the member 3 receive the edges of two plates 5 connected together by tension springs 6, Fig. 2. Should the temperature fall, the valve 22 opens the orifice 21 and the tube 1 lowers the member 3 until edges 32 on the member 34 cause the plates 5 to snap upwards, under the action of the springs 6, to raise the member 10, whereupon the ball 14 closes the lower end of the passage 11 and the ball 15 is raised to admit pressure fluid to the conduit 30. An increase of temperature causes the member 3 to rise until the plates 5 snap over in the reverse direction and the conduit 30 is vented through the passages 11, 31. The parts 2, 7 and a base member 26 are adjustably connected together as shown, and the position of the edges 32 is adjusted by screwing the guide 34 upon the member 2. The passage 19 is adjusted by a needle valve 20. The tube of the temperature - responsive device may be filled with mercury and dips into a channel 28 through which the milk flows.
Patent GB-257078-A (GB)
Title: Improvements in or relating to canisters or like receptacles
IPC: B65D25/00
Filed: 1925-07-27
Abstract: 257,078. Hodgkinson, T. H., and Hepworth, F. N. July 27,1925. With transparent parts for viewing contents.- In a canister or like receptacle provided with a subsidiary chamber in which samples of the contents can be exposed for view the subsidiary chamber e is closed by a transparent plate i clamped between a pair of frames g, j, the outer of which engages the walls of the opening in the chamber. The inner frame j is preferably secured in position by catches k, and the chamber may be provided with a similar transparent closure on its inner face m. The subsidiary chamber may be formed in the lid or other portion of the canister a and stops may be provided on the lid or body of the canister to hold the lid in a convenient open position.
Patent GB-786412-A (GB)
Title: Improvements in and relating to forced recirculation steam boilers heated by waste gases
IPC: F22B29/02
Filed: 1956-06-20
Abstract: 786,412. Forced recirculation steam boilers. VORKAUF, H. June 20, 1956 [April 13, 1956], No. 19110/56. Class 123(2) A forced-recirculation steam boiler heated by waste gases, for example from an internal combustion engine,. has its heating surfaces divided into separate tube groups 3...7, all of the groups discharging into a common header 10 whence steam-water mixture flows to a drum 2, whilst respective inlet ends of the groups are independently connected through an internally-partitioned header 8 and pipes 15 to the discharge of the circulating pump 13, valves 16 being fitted into the individual pipes 15 whereby the groups can be isolated from the water flow as required to regulate the boiler output. For ease of operation the valves 16 are all arranged adjacent the pump 13.
Patent GB-477913-A (GB)
Title: Improvements in or relating to welding machines
IPC: H01J9/40
Filed: 1936-07-10
Abstract: 477,913. Supply systems for resistance welding. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 10, 1936, No. 19175. Convention date, July 27, 1935. [Class 38 (iv)] [Also in Group XXII] In an apparatus for sealing metal tubes such as exhaust tubes 3 of electric lamps and thermionic valves, by applying mechanical pressure to opposite sides of the tube to flatten it, then reducing the pressure, and passing a welding current through the walls to effect a weld, current is supplied to the welding electrodes 5, 6 from source 43 by a transformer 42, the primary of which is in series with a gas-filled thermionic valve 44 acting as a switch. Normally, a condenser 47 is in circuit through switch arm 52 with a battery 48, the positive terminal of which is connected to contact 50, but when the arm is forced by a cam on a shaft 53 against the contact 54, the condenser is discharged through a resistance 46 and the grid 45 and welding thus effected as long as the grid remains sufficiently positive.
Patent GB-295497-A (GB)
Title: Improvements relating to lawn tennis and like balls
IPC: A63B45/02
Filed: 1927-07-20
Abstract: 295,497. Nott, A. G. July 20, 1927. Balls.-Lawn tennis or other balls having woollen cloth covers are marked for identification by perforating the cover by actual removal of material. The perforations may be filled in with noticeable material, such as rubber, for example, by interposing behind the perforations and between the cover and core, unvulcanized rubber prepared for vulcanization; during the subsequent treatment in the hot finishing mould the rubber flows into the perforations.
Patent GB-1488088-A (GB)
Title: Dart stem
IPC: F42B6/00
Filed: 1976-05-07
Abstract: 1488088 Darts ELKADART Ltd 7 May 1976 [7 May 1975] 19249/75 Heading A6S A dart has a stem 4 with a connector 3 at its front end screwed into the dart body 2 and an open slot 7 of cruciform shape at its rear end for a flight 6, the stem being provided with an axial bore extending from its rear end at least nearly to its front end or, as shown, along its whole length. The stem may be made of fibreglass, or of cane. The outer end of the bore may be chamfered, and to allow easy insertion of the flight 6. A retainer ring 5 is provided.
Patent GB-222453-A (GB)
Title: Machine for burling fabrics and cutting the loose ends of weftthreads at the selvedges
IPC: D06C13/00
Filed: 1924-08-15
Abstract: 222,453. Offroy, R., and Blondel Fils et Cie. Sept. 28, 1923, [Convention date]. Trimming; burling. - The fabric passes from a pile or roll over guide and tension rolls to driven card covered rollers 8, 9 which remove loose threads from the faces of the fabric and shorten the threads extending from the selvage. The fabric then passes over a blower 10 which raises the threads extending from the selvage so that they are cut off by rotating cutting-discs 11, the cut ends being removed by a suction device 13. The fabric then passes to fixed or rotary brushes 35, 36 which remove any loose threads &c. remaining on the fabric. The cutting-discs together with the suction and blowing devices are pivoted on arms controlled by a handle on a shaft 26, rotation of the shaft adjusting the devices laterally of the fabric whilst the shaft can be raised and maintained in that position by a latch to move the cutting-discs &c. clear of the fabric. The cutting-discs &c. can be arranged on both sides of the fabric to treat both selvages simultaneously.
Patent GB-626422-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/01
Filed: 1947-07-19
Abstract: 626,422. Slicing machine. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N. V.). July 19, 1947, No. 19401. [Class 28(ii)] The slice thickness gauge plate 10 of a slicing machine can also be adjusted towards the knife 12 to compensate for the wearing away of the knife after repeated grindings by sliding the plate along within grooves of top and bottom walls 17, 18, forming part of the support frame 15 for the gauge plate 10, and then clamping the plate in these recesses. The angle bar clamp 23 Fig. 3 when tightened up by screws 24 presses against the bevel 22 of the lower edge of the plate, and thereby also holds the top edge bevel securely in the undercut 20. Extensions 25, 26 of the walls 17, 18 are shaped to form guards for the knife edge. The top face of the angle clamp 23 can also serve as a rest when de-rinding bacon.