baber/WOPTO huggingface dataset:
Patent GB-1306427-A (GB)
Title: Electrical circuit breaker with illuminated trip indicator
IPC: H01H73/14
Filed: 1970-10-05
Abstract: 1306427 Protective arrangements SQUARE D CO 5 Oct 1970 [6 Nov 1969] 47186/70 Heading H2K [Also in Division H1] A moulded case circuit-breaker of the kind having an intermediate latch member between a trip bar and a tripping lever, has an'auxiliary switch 31 the operating member of which is released by the intermediate latch member to close the switch contacts only when the circuitbreaker is tripped open, the closing of the contacts causing the lighting of a lamp 28 which is visible through a window in the circuit-breaker casing. Flashing means may be provided to cause repetitive flashing of the lamp, these means comprising a capacitor 34 which charges through a diode 36 and a resistor 33 to the breakdown voltage of the neon lamp 28. The capacitor discharges through the lamp causing it to flash, the capacitor then recharging to repeat the flashing.
Patent GB-1163115-A (GB)
Title: Improvements in or relating to Electric Circuit Assemblies.
Inventor: RICHARDS HOWARD DAVID
IPC: H01F29/10
Filed: 1965-11-09
Abstract: 1,163,115. Circuit assemblies; inductors and transformers. PLESSEY CO. Ltd. 4 Nov., 1966 [9 Nov., 1965], No. 47375/65. Headings H1R and H1T. In a circuit assembly of the kind in which conductors and components such as resistors and capacitors are formed by printing or evaporation on an insulating substrate, the substrate is made of electrically insulating magnetic material, such as ferrite, which forms at least part of the magnetic circuit of an inductor deposited on or otherwise associated with the substrate. In Figs. 2a, 2b such a substrate 1 bearing film components 8, has a wire 3 wound as shown to form a coil. In Fig. 2c, the wire 3 is threaded through bores 4 in the substrate 1 parallel to its major surfaces. The wire 3 may be wound on a separate core 5 which is fitted into a slot in the substrate 1; Fig. 4b shows such an arrangement constituting a transformer. The reluctance of the magnetic circuit is varied by a wedge-shaped slider 7 which co-operates with an air-gap 6. The surface of the substrate 1 may be rendered smooth, as by depositing a glaze thereon.
Patent GB-1076889-A (GB)
Title: Improvements in methods and devices for measuring the intensities of very weak magnetic fields
Inventor: SALVI ANTOINE
IPC: G01R33/24
Filed: 1964-11-20
Abstract: 1,076,889. Magnetometers. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 20, 1964 [Nov. 21, 1963], No. 47395/64. Heading G1N. In a magnetometer for measuring the intensity of weak magnetic fields of the order of 0À01 gauss in interplanetary space, two equal but opposite auxiliary magnetic fields H 1 , H 2  are created parallel to the field h to be measured in regions 1a, 1b respectively and the difference in Larmor frequency of protons in the respective resultant fields is measured. This difference is proportional to h. As shown, each vessel 4a, 4b may contain a solution of peroxylamine sulphate in deoxygenated water and an oscillator 7 delivers a signal to coils 5a, 5b to saturate the 56 Mc/s resonance line of the salt thereby increasing, due to the Overhauser- Abragam effect, the intensity of the signal at the Larmor frequency. Pick-up coils 8a, 8b form part of respective tuned circuits, e.g. 8a, 10a, each of which is connected to a linear amplifier, e.g. 11a, having a narrow pass band. Part of the output from each amplifier is fed back e.g. through resistor 13a to a coil 9a whose axis is perpendicular to that of coil 8a so that the only coupling between these coils is that due to nuclear magnetic resonance. Between the coils 5a, 5b and 8a, 9a, 8b, 9b is a screen (not shown) opaque to 56 Mc/s but transparent to the Larmor frequency (~ 10 kc/s). A mixer 15 forms the difference f = f 1  - f 2  of the frequencies f 1 , f 2  from outputs 12a, 12b and f is measured and recorded in known instruments 16, 17 respectively. Magnetic resonance generators such as described in Specification 1, 076, 700 may be used. Other paramagnetic substances which may be used in vessels 4a, 4b are aqueous diphenylpicrylhydrazyl and certain organic radicals containing a nitroxide group. The magnetometer is suitable for use in artificial satellites.
Patent GB-998978-A (GB)
Title: Fluorocarbon ether carboxylic acids and derivatives thereof
IPC: C07C51/62
Filed: 1962-12-18
Abstract: Compounds of formula <FORM:0998978/C2/1> or <FORM:0998978/C2/2> where Rf11 is perfluoroalkyl or omega-hydroperfluoroalkyl, Rf1 is perfluoroalkylene and <FORM:0998978/C2/3> is a carboxylic acid group or carboxylic acid derivative group are prepared by reacting hexafluoropropylene oxide with a fluorocarbon acid fluoride and, if desired, converting the resulting acid fluoride to another carboxylic acid derivative. Those compounds in which Rf11 is perfluoroalkylene of 1, 2, 4 or more carbon atoms or omega-hydroperfluoroalkyl with at least 4 carbon atoms and the compounds containing Rf1 are claimed per se.  The group <FORM:0998978/C2/4> may represent acid fluoride, free acid, alkali metal salt of the acid, ester, amide or acrylamide. Suitable acid fluorides for reaction with hexafluoropropylene oxide include carbonyl fluoride, acid fluorides of perfluoro- and omega-hydroperfluoralkanoic acids and diacid fluorides of oxalic acid or perfluorinated aliphatic dicarboxylic acids.  The reaction may be effected in the absence of a solvent using activated carbon as catalyst or in the presence of a strongly polar solvent and of a fluoride of an alkali metal, silver or a quaternary ammonium radical, optionally mixed with other alkali metal halides.
Patent GB-1017390-A (GB)
Title: Mechanical pencil
IPC: B43K21/10
Filed: 1962-12-21
Abstract: 1,017,390. Mechanical pencils. F. T. JOHMANN Dec. 21, 1962, No. 48363/62. Heading B6P. Relates to push-button and/ or tip actuated mechanical pencils in which front and rear barrel portions 11 and 10 respectively can still be rotated relative to each other to advance or retract the lead. In a tipactuated type of mechanical pencil, Fig. 10, a propelling mechanism of the helical groove type comprising members 16<SP>1</SP> and 19, rotatable relative to each other, is mounted for longitudinal, non-rotatable movement in the front barrel portion 11<SP>1</SP> of the pencil. A pawl 25 attached to member 19 cooperates with two rings of ratchet teeth or cams 27, 31 fixed to the rear barrel portion 10<SP>1</SP> of the pencil. A spring 45 biases the propelling mechanism towards the front barrel portion. Depressing the tip 16<SP>11</SP> causes the pawl 25 to ride up the cam surface 34 and upon releasing the tip, the pawl rides down cam surface 30. Relative rotation is therefore caused between members 16<SP>1</SP> and 19 of the propelling mechanism, and the lead 17 is advanced. In a modification of the above embodiment, illustrated in Fig. 13 (not shown), members 35<SP>1</SP> and 36<SP>1</SP> which are fixed within the barrel of the pencil of Fig. 10, are mounted for longitudinal, non-rotatable movement within the rear barrel portion. Depressing members 35<SP>1</SP> and 36<SP>1</SP>, push-button wise, moves cams 27 and 31 downward with respect to the propelling mechanism 19, 16<SP>1</SP>, and the pawl 25 provides the relative rotation to advance the lead. Figs. 15 to 18 (not shown) illustrate different cam arrangements, wherein the two rings of cams are attached to member 19 and the pawls are arranged on the inner surface of the rear barrel portion. In alternative embodiments, Figs. 1 to 9 (not shown), the propelling mechanism is fixed to the front barrel portion and pushbutton actuated cams provide the relative rotation to advance the lead. In the modification of Fig. 13 (not shown), notches 67 and 68 in cam members 27<SP>1</SP> and 31<SP>1</SP> engage the pawl 251, so that relative rotation of the front and rear barrel portions of the pencil causes the lead to advance or retract.
Patent GB-1169207-A (GB)
Title: A Regulating and Safety Valve
IPC: F16K17/10
Filed: 1966-11-02
Abstract: 1,169,207. Valves. SIEMENS A.G. 2 Nov., 1966 [2 Nov., 1965], No. 49228/66. Heading F2V. [Also in Division G3] A regulating valve 3 connecting a steam pipe 1 to a pipe 2 at a lower pressure is of single beat lift type (Fig. 6, not shown). The valve can be opened and closed through an electric motor 5 or a handwheel 6 through a drive 4 and fixed nut operating a screwed spindle 7. The spindle is fast with a pair of spaced plates 9, 13. A stem 12 guided in the spindle 7 passes through the bottom plate 13 and is connected through a differential piston 15 with the valve 3. Between the plates 9, 13 is a spring 10 connected at one end to the stem 12. From closed position the valve 3 can open automatically against the spring 10, under the control of a pilot valve 16 responsive to pressure in the pipe 1. Upstream and throat zones of the pilot valve are connected across the piston so that on excess pressure in pipe 1 the main valve 3 is opened. A dashpot may be incorporated in the transmission to the main valve, Figs. 3 and 4 (not shown). In a modification the spring is arranged in a guide (22) fixed directly to the piston, Fig. 6 (not shown).
Patent GB-1281258-A (GB)
Title: Tape reel and tape threading system
IPC: G11B15/67
Filed: 1970-10-20
Abstract: 1281258 Tape reels; securing initial tape end AMPEX CORP 20 Oct 1970 [6 Nov 1969] 49634/70 Heading B8M A tape reel having a single flange comprises a tape support 35 having a surface 41 about which the tape is coiled, a first gripping means on the support 35, a hub 75 associated with the support 35 for turning movement relative thereto from a first threading position to a second gripping position, and a second gripping means on the hub for co-operating with the first gripping means to define a tape threading position in which a slot is formed for the reception of a leading end of the tape when the tape support and hub are in the first position, the first and second gripping means being relatively movable to a tape gripping position when the tape support and hub are in the second position. The first gripping means comprises a plurality of projecting teeth 43 which are circumferentially spaced about the axis of the base 35 which is in the form of a flange 37. Slots 31 are provided between the teeth 43 for the reception of a leading tape end. Each tooth 43 is provided with an internal cavity 55 which is open at the base by way of slots in the flange 37. The second gripping means comprises a plurality of fingers 59 projecting from the hub 75, which fingers pass through the slots in the flange 37 into the cavities 55 in the teeth 43. The teeth 43 and fingers 59 are relatively movable whereby in a threading position the slots 31 are free from obstruction, the fingers 59 being located within the cavities 55, and in a gripping position the fingers move across the slot to trap the leading end of the tape against the next adjacent tooth 43. The fingers are made from a relative soft material to avoid damage to the tape. The hub 75 is located relative to the support 35 by means of pins 95 on the support engaging in slots 97 on the hub. A friction brake 99 is preferably provided on the hub to restrict unwanted movement. The relative turning movement between the support 35 and the hub 75 is initiated by a push button 33 positioned in the central opening of the support. The button 33 is provided with cam surfaces 125 engaging cam followers 127 provided on the wall 129 of the central opening of the support. Legs 111 on the button locate below the wall 129 and keys 121 locate in splines 123 provided in the internal wall 145 of the hub. The button 33 is provided with a spring return 143 and a decorative disc 135. The reel is of particular application in sound recording apparatus, the recorder having a cover for the reel which has a radial slot whereby the end of the tape is placed edgewise on to the reel.
Patent GB-1205976-A (GB)
Title: Device for lifting and lowering oxygen lances for top-blowing converters
IPC: C21C5/46
Filed: 1967-11-02
Abstract: 1,205,976. Winding safety devices. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. 2 Nov., 1967 [4 Nov., 1966], No. 49942/67. Headings B8B and B8L. [Also in Division F4] A device for lifting and lowering an oxygen lance 1 vertically out of and into a top blowing converter, comprises a servic and an auxiliary cable 2, 4 wound on a common drum 3, the auxiliary cable 4 passing over a pulley 5a mounted on a spring 6 and the service cable 2 passing over a pulley 5b on a fixed axle, so that during normal operation the lance is carried mainly by the service cable. In the event of breakage of the service cable, the auxiliary cable takes all the load and the pulley 5a is deflected against the spring 6 to operate a switch 7 controlling the motor of the winding drum 3. A further motor switch may be provided to be operated when the spring 6 fully expands due to slack in the service cable. In the embodiment of Figs. 3 and 4 (not shown) the cables each pass around a pulley on the lance carriage and has its end attached to a fixed structure, the auxiliary cable being fixed via a spring.
Patent GB-1350719-A (GB)
Title: Method and apparatus for the production of electrical contacts on contact carriers
IPC: B23K31/02
Filed: 1972-10-30
Abstract: 1350719 Making electrical contacts; welding by pressure; shearing H A SCHLATTER AG 30 Oot 1972 [4 Dec 1971] 50021/72 Headings B3A B3R and B3W A method of connecting electrical contacts 8<SP>1</SP> to contact carriers 14 comprises cutting a contact piece 8 from a length of wire or ribbon-like contact material 3, advancing the contact material to push the cut piece to a position for connection to the carrier, connecting the piece to the carrier and withdrawing the contact material by a distance 24 which is smaller by the length 22 of the cut piece 8 than the distance 23 by which the piece 8 is advanced. At the beginning of a work cycle, a clamp 9 holds the end of the wire 3 on a lower shear blade 7 and an upper blade 6 cuts off the piece 8 pivoting a guide section 2 against the action of a spring 20, thereby clamping the end of the wire 3 against an extremity 19 of a guide section arm. Grips 4, 5 are withdrawn through the distance 22 thereby tensioning and straightening the clamped wire as they slide along it. The blade 6 is raised allowing the guide section to pivot back and the clamp 9 is released. The grips 4, 5 move the wire 3 through the distance 23 and the cut piece 8 is pushed on to the contact carrier 14, to which it is welded by electrodes 12, 13. During welding, the grips are withdrawn through the distance 24 to align the end of the wire 3 with the clamp 9, which is then lowered to complete the cycle. In alternative embodiments, as the guide member 2 is pivoted by the blade 6 it may lift the grip 4 or release its loading spring 25 either partly or wholly.
Patent GB-1283388-A (GB)
Title: Improved test composition and method for detecting reducing sugars in aqueous fluids
IPC: G01N33/66
Filed: 1969-10-17
Abstract: 1283388 Detection of reducing sugars MILES LABORATORIES Inc 17 Oct 1969 [19 Dec 1968] 51242/69 Heading B1X A solid test composition for detecting reducing sugars in aqueous solution comprises a water soluble cupric salt, a solid acidic material which is a member of the group of solid acids and acid salts which form watersoluble complexes with cupric ion in alkaline solution, a solid oxide or hydroxide of an alkali metal in an amount in excess of that required for neutralisation of the acidic material to generate heat by the neutralisation and the solution of the excess so as to cause the conversion of the cupric salt to cuprous oxide by any reducing sugar present in an aqueous solution tested, a surface-active agent to form a monolayer on the surface of the aqueous solution, and a solid particulate carrier for the surface-active agent. The acidic material may be citric acid or an alkali metal acid salt thereof or tartaric acid. The composition may also contain an alkali metal carbonate or bicarbonate to assist its dissolution in the solution, dessicating agents, diluents and excipients. Many suitable surface-active agents and carriers are specified. The composition may be produced in tablet form.
Patent GB-1021880-A (GB)
Title: Temperature and stress resistant body and method for making such body
IPC: F02K9/97
Filed: 1963-12-31
Abstract: <PICT:1021880/C6-C7/1> A refractory body such as the nozzle or nose cone of a rocket is made from a porous compact formed of spheres or ductile wires, the porous compact being cemented together by reacting in the compact a compound of a cementing material and a reducing agent to deposit the cementing material in the pores. Refractory porous compacts such as those of W, Nb, Ta, Zr, Ti, Si, V, Hf, Re, Cr and Mo, ceramics, carbides, glass and carbonaceous materials may be infiltrated and/or consolidated with metals such as Ag, Cu, Si, Hf, V, Cr, Nb, Zr, Ta, W, Mo, Re and alloys, or with carbides of Hf, Zr, Ta, Th, Nb, oxides of Al, U, Th, Mg, Zr and also with nitrides, silicides and borides.  In one embodiment spherical W particles are formed either by plasma jet fusion or by fluidized bed decomposition of the halide.  The particles of a size -60 to +400 U.S. mesh are mechanically packed or compacted to a fixed density e.g. 60-93% of theoretical and the green compact is then cemented at 480-900  DEG F. by reacting a tungsten halide such as WF6, WCl6 or WI6 with hydrogen or cracked ammonia to deposit W in the pores.  In another embodiment shown in Fig. 7 cold drawn tungsten wire 53 is wound on a perforated mandrel 51 to form a porous body with a density of 60-65% theoretical.  A tungsten halide and hydrogen are passed through the holes in the mandrel and tungsten is deposited in the gaps between the strands of wire at 480-900  DEG F.
Patent GB-1342376-A (GB)
Title: Electrical coil and method of manufacturing same
IPC: H01F41/12
Filed: 1971-11-04
Abstract: 1342376 Encapsulating electric coils ELECTRONIC ASSOCIATES Inc 4 Nov 1971 [9 Nov 1970] 51374/71 Heading B5A [Also in Division H1] A dual bobbin coil assembly 21 is placed in a transfer mould and thermally injected with mineral filled heat conductive epoxy and catalyst to impregnate the windings and form the final encapsulated product 10 (Fig. 1). The plastic material is injected (Fig. 24) through inlets 60 at the corners of the mould opposite the terminal board and parallel to the plane of the bobbin flanges. The 2 part mould (Fig. 23) comprises bobbin supports 62 in lower half 64 having injection gates 60 and a shaped upper half 66 with a dependent wall 68 fitting flush to a sloping surface of the lower half except for constructed openings pinching the leads 30 attached to the terminal eyelets, which are encapsulated by head 70.
Patent GB-1357056-A (GB)
Title: Methods of and apparatus for hydraulic grinding
IPC: B24B37/00
Filed: 1972-11-07
Abstract: 1357056 Abrading HONDA GIKEN KOGYO KK and HONDA KOKI KK 7 Nov 1972 [8 Nov 1971] 51374/72 Heading B3D A method of removing sharp edges of a machined bore or bores and burrs appendant thereto from a workpiece comprises forcing a mass of grinding medium, composed of oil and abrasive grits admixed thereinto and tending to deposit under gravity, through the machined bore alternately in one direction and then the other using aligned piston and cylinder assemblies above and below the workpiece in a manner such that during the pass in said one direction the upper portion of the mass consisting substantially of only the viscous oil passes through the bore ahead of the lower portion including an increasing proportion of abrasive grit, and such that during the pass in the said other direction, the lower portion passes through the bore ahead of the upper portion. A number of workpieces W may be mounted in respective workholders 6 located on a turntable 7 indexable about a shaft b to bring the workpieces successively between upper and lower piston-cylinder assemblies 1, 12. The upper assembly is secured to the machine frame a and has a pair of pistons 2, 2<SP>1</SP> interconnected by a rod slidable through a partition dividing the assembly into upper and lower chambers. The lower assembly can be raised and lowered by an actuator 13 and has a pair of pistons 9, 12 interconnected by a rod which passes through a partition and extends beyond the lower end of the assembly, the rod having an enlargement for actuating limit switches LS1, LS2, LS3. The adjacent ends of the assemblies have walls formed with aligned bores 25, 26. The medium 19 of viscous oil and abrasive particles is initially above the piston 19 of the lower assembly which, at the start of the operation, is raised by the actuator 13 to clamp the turntable against the bottom of the upper assembly. The pistons of both the lower and upper assemblies are then raised so that the upper portion of the medium 19 consisting mostly of the viscous oil passes through the bore 26, bore in the workpiece and bore 25 and then the lower portion of the medium passes through the bores. When the direction of movement of the pistons is reversed, first the lower and then the upper portion of the medium passes back through the bores into the lower assembly. The pistons 9, 12 continue downwardly after stopping of the upper pistons to draw a washing oil D from a tank 17, through the bore in the workpiece and the bore 26. The washing oil is prevented from mixing with the grinding medium 19 by a float plate 8. The actuator 13 then lowers the assembly 20 and at the same time pistons 9 and 12 are raised sufficiently for the washing oil above plate 8 to be expelled through bore 26 into a pan 18 for return to a sump 21 which has a pump 22 for supplying oil to the tank to a level controlled by a float switch 16.
Patent GB-1184473-A (GB)
Title: Profiling of Workpieces
IPC: B29C48/465
Filed: 1967-02-10
Abstract: 1,184,473. Rolling. ROTARY PROFILE ANSTALT. 10 Feb., 1967 [14 Feb., 1966], No. 51594/69. Divided out of 1,184,471. Heading B3M. [Also in Division B5] A deformable workpiece 214 is profiled by passing it between a central roll 210, having die pockets 211, and a ring of outer rolls arranged in a C-formation. The workpiece can be formed as a series of finished articles 215 joined by a web 216. The rolls 212, which are either backed by further rolls 213 or are traversed around a fixed C-shaped frame 502, Figure 2, may be profiled. The workpiece may be hot or cold rolled.
Patent GB-1096640-A (GB)
Title: Micro-fiber spinning process
IPC: D04H13/00
Filed: 1965-12-06
Abstract: 1,096,640. Fibres. MONSANTO GO. Dec. 6, 1965 [Dec. 7, 1964], No. 51663/65. Heading B5B. Micro-fibres, defined as fibres of substantially circular cross-section of diameter 0À5-25 microns, are made by extruding streams of organic fibre-forming composition through orifices in a shaft on to planar surfaces extending radially from the shaft, rotating the surfaces at such a speed that the streams are attenuated centrifugally and advanced radially across the surfaces and then off their edges, receiving the streams in the form of fibres on collecting means, and continuously removing them from the collecting means. In one embodiment (Fig. 1) a spinning element 24 comprises a hollow tube 10 rotatably mounted on frame 12, and bearing six parallel fins 16 equally spaced around the circumference of tube 10, a row of orifices 18 being spaced between each two adjacent fins. A flowable organic composition, fed under pressure at both ends 19, 21 of tube 10, is extruded from the orifices of the rotating tube on to the smooth surfaces of the fins, and is thrown therefrom by centrifugal force in the form of micro-fibres, which are deposited as a web on each of a series of encircling collecting surfaces consisting of endless screens 26 carried on rotating shafts 30. In further embodiments, the plurality of fins may be replaced by a single, helical fin, and the interior of the tube 10 may be subdivided into more than one channel so that different compositions may be extruded. from different orifices.