baber/WOPTO huggingface dataset:
Patent GB-995507-A (GB)
Title: Improvements in or relating to capacitors
Inventor: COZENS JOHN HAROLD
IPC: H01G4/32
Filed: 1963-01-29
Abstract: 995,507. Capacitors. TELEGRAPH CONDENSER CO. Ltd. Dec. 5, 1963 [Jan. 29, 1963], No. 3679/63. Heading H1M. A capacitor of flat or rolled form comprising interleaved dielectric and metallic electrode layers, wherein a pair of electrode layers is interleaved between each pair of adjacent dielectric layers; each electrode layer providing a metal free gap extending along the adjacent dielectric layer or a metal free margin at one edge or each of opposing edges, with a layer of absorbent insulating material interposed between the electrode layers at the or each margin or the gap so as to extend to the edges of the dielectric layers; such absorbent material providing a means of access of an impregnant to the or each gap or margin. Fig. 2 shows the section of a roll capacitor in which films 2 of e.g. polystyrene or polyethylene terephthalate are vacuum metallized on each side with electrodes leaving metal free margins 4 along opposed edges. Two such films are superposed or wound together in pairs with the interposition of an absorbent paper strip 3 extending over the nonmetallized margins and rolled together; the capacitor then being impregnated with e.g. petroleum jelly, mineral oil, mineral or chlorinated waxes, or synthetic resins polymerized in situ. Connections are made by spraying metal on the exposed electrode edges. Alternatively (Fig. 3) the electrode 1 on one face of a dielectric film 2 is divided by a central gap 5 and extends to each edge of the dielectric film while the electrode on the other side of the film overlaps the central gap and has a margin 4 at each edge. Such metallized strips are wound together with the interposition of absorbent strips alternately overlying the gapped electrodes and the electrodes having edge margins, and the roll is impregnated as before. Connections are made by metal spraying the exposed edges as before, when the alternate electrodes having edge margins are left floating, and may be interconnected by leaving the paper strips 3 short at one end to allow contact. Discrete foils may be used as electrodes instead of metallized layers.
Patent GB-475177-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H04B1/16
Filed: 1936-02-06
Abstract: 475,177. Wireless receiving systems. GABRILOVITCH, L. Feb. 6, 1936, No. 3688. Void. Convention date, Feb. 7, 1935. Drawings to Specification. [Class 40 (v)] The selectivity of a radio receiver is increased by frequency multiplication of the intermediate frequency signals in a superheterodyne receiver before final detection.
Patent GB-311002-A (GB)
Title: Improvements in or relating to weighing apparatus suitable for use in lifting apparatus
IPC: G01G19/14
Filed: 1928-02-06
Abstract: 311,002. Donaldson, D., and Hull, Blyth,& Co., Ltd., Feb. 6, 1928. Weighing-apparatus fitted to lifting-apparatus; hydrostatic apparatus.-Weighing-apparatus for recording or indicating the gross or nett weights lifted by a crane, derrick, or transporter &c. comprises means for forming a V in a flexible member to which a force due to the load is transmitted, means for transmitting a force proportional to the component of the force due to the load, in the direction of the axis of the V, means for applying the transmitted force to a second flexible member at a point between the ends thereof to form a V, or to vary the formation of a V in the second member, means for placing the second flexible member under constant tension and means for recording or indicating the movement of the second flexible member in a direction parallel to the axis of the V therein, the whole arrangement being such that the movement is directly proportional to the force in the firstmentioned flexible member. The hoisting or travelling rope 4, Fig. 1, is led over pulleys 2, 3, 1 the centre pulley 3 being mounted on guides 6 connected to the piston of a hydraulic cylinder 10. The hydraulic cylinder communicates by a pipe 13 with an indicator cylinder 24, Fig. 5, which is also connected by a pipe 23 with an accumulator cylinder 15, Fig. 3, loaded by weights 21. The accumulator cylinder 15 may be replenished with fluid by means of a hand pump connected to a pipe 22. The plunger 25 of the indicator cylinder engages a wire 35 secured at one end 36, passing over jockey pulleys 39 and maintained at constant tension by weights 42. The wire is deflected laterally until the pressure in the indicator cylinder is balanced. To measure this deflection, the plunger 25 is connected to an arm pivoted on a pin 44 carrying a toothed quadrant 46 which actuates a counter 52 indicating the weight of the load being raised and the total of the loads raised. When used with a grab, its control gear may be connected bv a wire or rod 32 to a lever 31 so as) slowly to close a cock 30 under the control of a dash-pot 33 and thus prevent irregular movements of the weighing mechanism due to variations in the stress of the lifting ropes after the weight has been registered. The pivot 44 of the quadrant 46 is adjustably mounted on a movable plate 45<1> and the counter 52 may be correspondingly adjusted.
Patent GB-1298633-A (GB)
Title: Improvements in or relating to a universal projectile
Inventor: LOSFELD ANDRE
IPC: F42B12/20
Filed: 1970-01-26
Abstract: 1298633 Projectiles; mortars A LOSFELD 26 Jan 1970 [29 Jan 1969 28 Nov 1969] 3728/70 Headings F3A and F3C A projectile can readily be adapted for use as a hand grenade, a rifle grenade, a rifle grenade with self propulsion, a mortar projectile or a projectile with its own launching apparatus comprises, a body 1, Fig. 1, a removable tail 6, and a removable fuze at its forward end, the fuze having an impact system for effecting detonation on impact, a delay system for effecting detonation with a predetermined delay after launching of the projectile, and means for selecting whether a particular one or both systems shall be operative. Strikers for both systems are held at safe by a pin 18 held in place by a removable tape 20 and removable immediately prior to launching. The impact system comprises a spring loaded striker 16a locked by balls 16b in a sleeve which is contained within a plunger 31. On impact at any angle, a mass 29 urges the plunger 31 rearwardly whereby the balls 16b escape through holes 16c and the striker 16a is released for movement towards a primer 21. The release of the striker may be facilitated by the sleeve in which it is locked by the balls, simultaneously moving forwards, owing to inertia, as the plunger 31 moves rearwardly . The delay system comprises a spring loaded striker which is driven into a further primer 21 immediately the pin 18 is withdrawn. The primer ignites a delay 22 which may be in the form of a ring fuse of adjustable length (Figs. 22-25, not shown). The member for selecting delay or impact operation is a rotatable apertured disc 23 and retains both systems at safe prior to launching. A fragmentation casing 3 may be slid on to the body 1 if required. A propellant charge 11 is provided for launching from a weapon and a charge 8 for self-propulsion. Inclined fins 7 cause the projectile to rotate on launching. In a modification (Fig. 20, not shown) a deformable cap (48) permits earth to enter the fuze on impact. The projectile may be contained in a launching tube 44, Fig. 15, carrying a support 45 which fits into the tail and contains a propellant cartridge 46. Surrounding the launching tube are two cylinder halves which can be removed and used to support the tube as shown in Fig. 16.
Patent GB-792958-A (GB)
Title: Improvements in and relating to radio frequency phase discriminator
IPC: G01R25/00
Filed: 1955-02-08
Abstract: 792,958. Automatic tuning control. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 8, 1955 [Feb. 8, 1954], No. 3735/55. Class 38 (4). [Also in Group XL (c)] A phase discriminator comprises waveguides 1, 2 and 4, 3 respectively with a " 3 d.b." slot coupling between them. Each waveguide portion 2, 3 receives from 4, 1, respectively, a phase quadrature component, equal in amplitude to the waves received directly from portions 1, 4. Detectors 10, 11 in the output waveguides 2, 3 apply their outputs differentially to a lowfrequency or high frequency amplifier 14 depending on the phase modulation variation, if any, of the inputs. If detectors 10, 11 are of square law type, the discriminator output is proportional to the sine of the phase difference of the inputs and to the square root of the product of the amplitudes in waveguides 1, 4. Decoupling attenuators 12, 13 may be included in the waveguide portions 1, 4. The discriminator may be applied to controlling the centre frequency of the pass-band of a filter 15 from whose input and output waveguides 19, 20 connect to the input waveguide sections 4, 1, a phase shifter 23 in one section adjusting for any inequality in length of the sections 19, 20. The output of the amplifier 14, or of a detector 26 may then control directly, or through a relay 27, a motor 24 mechanically varying the centre frequency of the filter pass-band. Local oscillations may also be applied from magic T sections 28, 29 to the detectors 11, 10 so that the differential amplifier 14 is responsive to the beat frequency. In place of the directional coupler a magic T phase discriminator may be employed with its non-collinear arms connected to the input and output of the filter, with a #/2 phase displacer in one of them, and the collinear arms terminating in the detectors 10, 11.
Patent GB-1298336-A (GB)
Title: Radiometer apparatus
Inventor: SMITH STANLEY DESMOND
IPC: G01N21/31
Filed: 1969-01-23
Abstract: 1298336 Investigation radiation reflected or transmitted from clouds S D SMITH and J T HOUGHTON 19 Jan 1970 [23 Jan 1969] 3900/69 Heading G1A A method or apparatus for detecting and/or measuring radiation emitted or reflected from cloud particles and cloud vapour in an atmosphere comprises collecting radiation emitted or reflected from said atmosphere over a given solid angle, interupting the received radiation cyclically, filtering radiation in first and second spectral regions such that in said regions cloud vapour has the same absorption properties but cloud particles have different absorption properties and detecting the filtered radiations at the interrupting frequency. In an embodiment Fig.4, intended for a satellite circling the earth, radiation from the atmosphere is incident upon a paraboloid mirror 10 which is being rotated by motor 11 to also receive radiation from a calibration black body 12. The radiation reflected by the paraboloid mirror 10 is cyclically interrupted by a chopper 13 comprising a mirror or blade 14 mounted at the ends of two cantilever arms 15 and tuned to resonate at a frequency of 10HZ. The chopped radiation is then incident upon a dichroic filter 17 which only allows a predetermined band of radiation to pass there through the remainder of the radiation being reflected on to a further dichroic filter 22. In the embodiment there are four such filters for the 8À5Á, 12Á, 40-60Á and 100-200Á regions. The radiation passing through filter 17 passes through a light pipe 20 and is detected by a bolometer or a pyro-electric detector 21. A block circuit associated with the apparatus Fig.5 (not shown) is also described.
Patent GB-1453833-A (GB)
Title: Direct-positive silver halide emulsions
IPC: G03C1/485
Filed: 1973-01-25
Abstract: 1453833 Photographic direct-positive silver halide materials AGFA-GEVAERT 11 Jan 1974 [25 Jan 1973] 3904/73 Heading G2C Photographic light-sensitive materials comprise at least one direct-positive emulsion layer containing fogged silver halide grains, a non-spectrally sensitizing electron-acceptor and a spectrally sensitizing dye of the Formula:- where each of R 1  and R 2  is an aliphatic, aliphaticaromatic or aromatic hydrocarbon group which may be substituted, each of R 3  and R4 is H, alkyl, cycloalkyl or carbocyclic or heterocyclic aryl which may be substituted, each of Ar 1  and Ar 2  is carbocyclic aryl which may be substituted, each of Z and Z<SP>1</SP> is a fused-on benzo group which may be substituted and X<SP>-</SP> is an anion which is absent when R 1  or R 2  contains an anionic group. The non-spectrally sensitizing electron-acceptor may be a nitrostyryl or nitrobenzylidene dye, a nitroaryl- or nitroarylamino dihydro-mercapto pyrimidine compound, especially that of the Formula:- or 2:3:5-triphenyl-2H-tetrazolium chloride, 2-(4- iodophenyl)-3-(4-nitrophenyl)-5-phenyl tetrazolium chloride, 1-methyl-8-nitroquinolinium methyl sulphate, 1-m-nitrobenzyl-quinolinium chloride, 1-m-nitro-benzylpyridinium chloride, 1-p-nitrobenzyl isoquinolinium chloride, 1-p-nitro-benzo [f] quinolinium chloride and 1-methyl-2-m-nitrostyryl quinolinium methyl sulphate. The said non- spectrally sensitizing electron acceptor supersensitizes the optically sensitizing dye. The materials may also contain colour couplers. Reference has been directed by the Comptroller to Specification 1237925.
Patent GB-788089-A (GB)
Title: Improvements in and relating to weft inserters for weaving looms
IPC: D03J5/00
Filed: 1956-02-08
Abstract: 788,089. Looms with stationary weft supply. DEWAS, R. Feb. 8, 1956 [Feb. 24, 1955], No. 3933/56. Class 142(2) A weft inserting needle of the kind described in Specification 509,612, has a ball 9 of steel, agate, or artificial stone, between the shoe 5 and the spring 6. The ball engages one of three holes 8 in the spring and also a groove 10 in the shoe. Alternatively, the holes may be in the shoe and the groove in the spring. The shoe may have an extension 5a loosely fitted on a stud 11 mounted in a boss 1c on the needle or mounted in a boss In an alternative embodiment the shoe may be loosely mounted on a stud near to, and passing through, the end of the spring. A screw 7<SP>1</SP> provides adjustment of the spring pressure. A cleaning blade may be mounted on the needle head and may co-operate with a stationary abutment when the needle is outside the fabric so as to pass into the thread clamp. An elastic arrangement may return the blade.
Patent GB-163426-A (GB)
Title: Improvements in and relating to means for supply of electric current to railway and like vehicles from the tracks
IPC: B60M1/08
Filed: 1920-02-10
Abstract: 163,426. Jones, W. T. Feb. 10, 1920. Conductors for electricity. - Means for the supply of electric current to railway &c. vehicles from the track comprise a series of levers c<1> normally held vertically by a pair of opposed springs a<1>, a<2>, which allow the lever to be depressed in either direction by a collector on a passing vehicle. The levers may be directly connected to the live rail or cable b or, as shown, may be insulated therefrom and only electrified in the movement of the lever by a passing collector. The live rail or cable and the contact members are preferably covered or protected so that the heads of the contact members are the only exposed parts of the system. The invention may also be applied as means for transmission of current for signalling.
Patent GB-881852-A (GB)
Title: Improvements in or relating to directional couplers
Inventor: ELSON NORMAN
IPC: H01P5/18
Filed: 1958-02-08
Abstract: 881,852. Coaxial line directional couplers. RACAL ENGINEERING Ltd. Feb. 9, 1959 [Feb. 8, 1958], No. 4189/58. Class 40(8).  A directional coupler for a power-measuring circuit comprises a co-axial line coupled to a further transmission line by means of three or more adjustable probes extending from the inner conductor of the co-axial line into axially spaced apertures between the two lines. The three probes 15 are screwthreaded into the inner conductor 13 of coaxial line 12 so that their depth of penetration into the co-axial line 10 may be adjusted. Access to the probes is had by removing threaded cover plates 19. The co-axial line is terminated at one end by a detector 16 and at the other by a broad band load 20 and a terminal resistor 17. If it is desired to measure power transmitted in both directions the co-axial line is terminated by detectors at both ends. Alternatively, the arrangement shown may be used in which two co-axial lines are coupled to opposite sides of the transmission line 10. The coupling factors of the probes may follow a binomial distribution.
Patent GB-1379844-A (GB)
Title: Air vent valves
IPC: F25B43/00
Filed: 1972-01-28
Abstract: 1379844 Valves Y FUJIWARA 28 Jan 1972 [13 Feb 1971 2 April 1971] 4208/72 Heading F2V An air vent valve for hot or cold water systems and the like, comprises a float 4 which sealingly co-operates with a seat 6 leading to vent passage 7 so as control venting in accordance with liquid level within chamber 3. A manual operating rod 8 is provided which additionally acts as an adjustable abutment for the float to locate the latter suitably for optimum sealing at the seat 6. The rod 8 is sealed from the chamber 3 by bellows 17, but in other embodiments the bellows is replaced by an O- ring seal and a compression spring. Lower body portion 2 may be omitted, the float then being retained by an annular ring attached to the inner periphery of body portion 1. The lower half of the float may be of thicker material to weight the float, or a float of constant wall thickness may be suitably weighted, to cause the seamed portion of the float to remain parallel to the liquid level and thus away from the seat 6.
Patent GB-1029151-A (GB)
Title: Improvements relating to nuclear power plant
IPC: F01K3/18
Filed: 1963-02-01
Abstract: 1,029,151. Superheating steam. J. A. DAHLGREN. Feb. 1, 1963 [Feb. 23, 1962], No. 4228/63. Heading F4A. [Also in Division G6] Steam from a pressurized water nuclear reactor steam generator 4 is superheated by passing a portion of the pressurized water through a first heat exchanger 16 in which an auxiliary liquid is heated and in turn passed through a second heat exchanger 17 in which it superheats steam from the reactor steam generator. In a modification (Fig. 2, not shown), two heat exchangers which give up heat from the auxiliary liquid are arranged in series, the second one being used to superheat the steam flowing from a high pressure to a low pressure section of a turbine. The auxiliary liquid is preferably water, and between 5 and 15% of the total pressurized water flow from the reactor is normally required for the superheating system.
Patent GB-1035031-A (GB)
Title: Device for welding and/or cutting foils of thermoplastic synthetic substances
IPC: B29C65/74
Filed: 1963-02-01
Abstract: 1,035,031. Plastics sheet, cutting and welding. M. LEHMACHER, and J. M. LEHMACHER. Feb. 1, 1963 [Feb. 12, 1962], No. 4276/63. Headings B5A and B5K. Apparatus for severing and/or welding a foil or foils 15 of thermoplastic material comprises clamping jaws 21, 21a and 22, 22a, a heated bar 23 which may sever and/ or weld the foil and a stretching device 26, 27 which may be placed in or out of contact with the foil. The foil may be folded to form two thicknesses (Fig. 1, not shown) and be intermittently fed through the apparatus by rollers 18, 19. When the foil stops it is clamped by the jaws and the heated bar 23 having a double bevelled edge is lowered to cut the foils at 11 and from welds, at 10, 12; thus bags are produced. In Fig. 2, not shown, a tubular film is passed through the apparatus and only jaws 21, 21a are operated; the heated bar 23 is reversed to provide a single bevel. The stretching device 26, 27 is engaged with the foils so that when the bar 23 is lowered one portion of the severed foils is pulled clear while the other is welded; again bags are produced. If neither pair of jaws clamps the foil then a simple cut is effected. The blade 23 may be replaced by a serrated member so as to produce a row of perforations. Any or all of the jaws may be heated so that they perform a welding as well as a clamping action. In Fig. 8 (not shown) the jaws 21, 22 are formed integrally and the bar 23 is positioned in a channel cut therein. The jaws are rotatable through 180 degrees so that when the unit is moved against the foil the adjacent clamping surfaces can lie either in the same or different planes. A web of P.T.F.E. is directed over the foil engaging surfaces and may be wound across the surfaces when it becomes worn.
Patent GB-224492-A (GB)
Title: Improvements in or relating to the lubrication of internal combustion engines
IPC: F16N39/06
Filed: 1924-02-20
Abstract: 224,492. Renault, L. Nov. 5, 1923, [Convention date]. Recovering waste lubricants.-The oil used for lubricating in an internal-combustion engine is purified bv passage under pressure through a centrifugal separator. The casing body 6 of the separator forms part of the casing 2 of the engine in order that the separator shall work at a high temperature, and the part 6 is covered by a bell 7 held by a clamping screw 9 in a stirrup 8. A container 10 with a detachable bottom 11 is rotatable bv the hollow shaft 13 which has driving dogs 16 fitting in slots in the bottom 11. The shaft is driven at a high speed from one of the engine shafts 22 through gearing 21, 20, 18, 17. The container 10 encloses an inverted tank 23 with apertures 23<1> in its lower portion and with wings 23' on its periphery. A cylindrical filter 24 of wire gauze is fixed above the tank. When the engine is running, oil is delivered by the pump 27 to the hollow shaft 13 and passes downwards in the tank 23, through the apertures 23<1>, upwards while it is carried round by the vanes 23<2>, through the filter 24 to the axis and then through the openings 25 and outlet 28 to the surfaces to be lubricated. The container 10 may be removed for cleaning after removal of the screw 9 and bell 7.
Patent GB-325381-A (GB)
Title: Gearing for motor trucks
IPC: B62D61/06
Filed: 1929-02-09
Abstract: 325,381. Douglas Motors, Ltd., and Douglas, J. Feb. 9, 1929. Driving steering-wheels.-In a motor truck fitted with a single driving-wheel capable of being swivelled about a vertical axis through a complete revolution for steering and reversing, the driving-wheel 15 is driven through bevel gearing 21, 22 from a vertical shaft 19 which is mounted in bearings 20 on one arm of the driving-wheel fork 13 and enclosed by casings 23, 24, 25 bolted to the fork. An engine 2 drives the shaft 19 through a, friction clutch 6, bevel gearing 8, 9, and spur gears 17, 18, the bevel wheel' 9 and spur gear 17 being mounted on a vertical shaft 10 rotating in bearings in the steering stem 11 which is integral with the fork 13.
Patent GB-290719-A (GB)
Title: Improved apparatus for use in the manufacture of alkali and alkaline earth hydroxides
IPC: C01F11/02
Filed: 1927-02-16
Abstract: 290,719. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Feb. 16, 1927. Alkali-metal hydroxides. - In decomposing alkali or alkaline earth amalgams by stirring with water, the stirring or propelling devices are formed of carbonaceous material such as charcoal, coke, graphite &c., or partly of carbonaceous material and partly of an alloy consisting mainly of iron, chromium and nickel. The device may consist of a wheel of this alloy carrying scoops formed of graphite.