baber/WOPTO huggingface dataset:
Patent GB-1009524-A (GB)
Title: Improvements in or relating to non-reciprocal electromagnetic wave devices
IPC: H01P1/365
Filed: 1962-06-28
Abstract: 1,009,524. Waveguides. WESTERN ELECTRIC CO. Inc. June 28, 1962 [July 5, 1961], No. 24825/62. Heading H1W. A non-reciprocal device for electromagnetic wave energy comprises a section of rectangular waveguide 10, an element 12 of gyromagnetic material disposed within the waveguide and extending transversely for a substantial extent on one side of the longitudinal centre line of the waveguide and polepieces 15, 16 for applying a steady magnetic field to the element that is substantially more intense away from the longitudinal centre line than in the portion thereof near the centre line such that the field increases according to a parabolic function. The gyromagnetic material has a narrow resonance line width and may comprise iron oxide with one or more of the oxide of a bivalent metal such as nickel, magnesium, zinc, manganese or aluminium combined in a spinel crystal structure. As shown, the waveguide may be disposed in a channel of one block of magnetic material having pole faces of one polarity and a block of magnetic material having a pole face of opposite polarity disposed adjacent a long wall of the waveguide, magnetic field lines 20, 21 being produced. It is stated that broad band operation is obtained by virtue of the fact that the physical position of the circularly polarized magnetic field present within the waveguide at a certain frequency of the transmitted wave is correlated to the resonant frequency of the ferrite produced by the applied magnetic field. Specification 958,270 is referred to.
Patent GB-803152-A (GB)
Title: Collecting electrodes for electrostatic precipitators
IPC: B03C3/10
Filed: 1956-08-14
Abstract: 803,152. Electrostatic precipitation. METALLGESELLSCHAFT A.G. Aug. 14, 1956 [Sept. 29, 1955], No. 24891/56. Class 39(1). The collecting electrodes of an electrostatic precipitator are narrow freely swinging metal slats 1, suspended at each end from endless chains 2 which run over top and bottom rollers 3 whose axes are parallel with the direction of gas flow. The discharge electrodes 4 are positioned within each endless belt. The collecting electrodes are cleaned by means of scrapers or shavers above the bottom roller, or by knocking against stops 7, 8, Fig. 4, or by brushes or blowing equipment 9. The cleaning means may be reciprocated by common levers 11, Fig. 1. The brushes, shavers or scrapers may be urged into contact with the collecting electrodes by their own weight or springs.
Patent GB-532433-A (GB)
Title: Improvements in or relating to fuel supply pumps
IPC: F02M59/00
Filed: 1939-08-31
Abstract: 532,433. Fuel-injection pumps. BOSCH GES. R. Aug. 31, 1939, No. 24947. Convention date, Oct. 22, 1938. [Class 102 (i)] An auxiliary hand-pump 7 for the fuel-pump 1 of an internal-combustion engine can, on removal of the screw-cap for the inlet-valve 4 of the fuel-pump &c. be screwed directly into the fuel-pump casing. Preferably, the pump-cylinder 14 is co-axial with the inlet-valve and is provided with a threaded part 6 which is formed with an inlet 10, and a guide for the valve-stem 4a. The piston 11 of the handpump can be locked by co-operation of threaded parts 16, 17 on the piston-rod 12 and a bush 13.
Patent GB-524431-A (GB)
Title: Improvements in the conductor systems of electrical apparatus
IPC: H05K3/32
Filed: 1939-08-31
Abstract: 524,431. Casting electric components. PHILIPS LAMPS, Ltd. Aug. 31, 1939, No. 24997. Convention date, Sept. 3, 1938. [Class 83 (i)] [Also in Groups V and XL] Casting composite articles.-Radio-receiving or other electrical apparatus having its conductor system 7 die-cast as in Specification 515,354, in which one or more parts such as condensers, coils, or resistances 2, 3 are arranged on the supporting plate 1 with their largest dimension normal thereto. The parts may be mounted on this plate by means of the connecting wires &c. W usually provided thereon before casting.
Patent GB-911325-A (GB)
Title: Improvements in or relating to fluid pressure responsive devices
Inventor: BARRATT AUBREY
IPC: G01L23/18
Filed: 1960-07-18
Abstract: 911,325. Measuring electrically. SMITH & SONS (ENGLAND) Ltd., S. July 18, 1961 [July 18, 1960], No. 25045/60. Class 40 (1). A fluid pressure responsive device in which a movable element deflected by the pressure imparts rotary movement to a controlled member through a transmission system is characterized by the use of a screw to convert linear to rotary movement. In the arrangement shown, fluid pressure applied to inlet 11 deflects a diaphragm 22 which carries a cup-shaped member 24 upwardly against the action of a helical spring 31. Mounted in the cup-shaped member is a member carrying a quick thread 40a. This thread engages on a fixed nut 42 so that it rotates as it rises and rotates a wiper 57 over a resistance mounted on a member 49. Resistance carrying member 49 has an elongated slot at its centre so that it may move radially to alter the amount of resistance variation for any given pressure change and the blade may be adjusted relatively to the spindle. A spiral spring takes up slack between the blade and cup.
Patent GB-943810-A (GB)
Title: Apparatus for filling powdered or granular material into containers
IPC: B65B1/16
Filed: 1961-07-12
Abstract: 943,810. Pneumatic conveyers; packaging machines. FMC. CORPORATION. July 12, 1961 [July 13, 1960], No. 25187/61. Headings B8A and B8C. [Also in Division G1] Containers are filled with powdered or granular material passing from a hopper, through two successive fluidizing chambers to which, in addition to the fluidizing gas, further gas pressure may be applied to discharge the material. The apparatus comprises hoppers H for storing the material, two fluidizing chambers A and F with false bottoms 20 and 118 to provide plenum chambers 22 and 120 respectively and a filling spout B, which has a valve mechanism D to stop the flow of material into the bag when a given filled weight is achieved, and a bag seal 15 that inflates to close the bag opening. The material after dropping through a conduit G into the first chamber F, is transferred to the chamber A, by means of a flexible conduit 72 controlled by a valve assembly E, comprising bars 80 and 82 which open to allow the material to pass. A conduit 74, having a flexible portion 76, connects the chamber A with the hoppers H to permit venting of the fluidizing air from the chamber A. The conduit 74 is closable simultaneously with the conduit 72 by the bars 80 and 82. In the operation of the apparatus, a bag 9 is placed over the spout B, the material being already in the chamber A, and the machine cycle started by a manually-operated control valve. The valve E is closed, the nozzle B is tilted upwardly to hold the bag against a clamp 32, the bag seal 15 is inflated, the valve D is opened and the chamber A is pressurized by low pressure air entering the manifolds 58, 50 and 52. When the bag is full, detected by a scale mechanism 11, a valve 200 in the pneumatic control system (Fig. 5, not shown) is actuated automatically to initiate closure of the valve D and to release pressure from the chamber A. At the same time, valve E is opened to release the conduits 72 and 74 and to permit material to flow from the chamber F, low pressure air is admitted to fluidize the material in the chambers A and F, and the bag seal 15 is deflated to release the bag. The nozzle B will move downwardly to allow the bag to fall therefrom.
Patent GB-1475609-A (GB)
Title: Gamma circuit
IPC: H04N5/202
Filed: 1974-06-06
Abstract: 1475609 Gamma correction circuits TOKYO SHIBAURA ELECTRIC CO Ltd 6 June 1974 [12 June 1973] 25189/74 Heading G4G A gamma correction circuit for a television system comprises an amplifier, transistors 13, 17, receiving a D.C. video signal E i  at least one diode, or diode-connected transistors 21 to 23, connected to the amplifier output at one end and to the output of an emitter follower circuit, in this case a cascade of such circuits 24 to 26, at the other end, the output E 0  being taken from the collector of transistor 17. The form of the exponential function generated is determined by a control voltage E 3  on the base of transistor 26. Transistors 21 to 23 and 24 to 26 have complementary temperature variations to provide a temperature-compensated circuit. Transistor 16 and its associated components constitute a clamping circuit to provide the D.C. input signal E i . In Fig. 1, (not shown) a single transistor (1) constitutes the amplifier and across the output thereof are resistors (3, 4) in series with diodes (5,6) connected to the emitters of emitter-follower transistors (7, 8) each having a respective control signal (E 1 , E2) connected to its base.
Patent GB-600139-A (GB)
Title: Improvements in electric terminals
IPC: H01R4/36
Filed: 1945-09-28
Abstract: 600,139. Binding-posts. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. Sept. 28, 1945, No. 25202. [Class 38 (i)] A terminal of the type having a bored stem f with a lateral clamping screw g has a cup a of thin sheet metal secured with a frictiontight fit round the end of the stem or a nut e or washer thereon, the cup having a funnelshaped bottom b with an aperture c therein to facilitate entry of the strands of a cable into the terminal bore.
Patent GB-968107-A (GB)
Title: Improvements in or relating to time division telephone switching systems
IPC: H04Q11/04
Filed: 1961-07-12
Abstract: 968,107. Automatic exchanges systems. WESTERN ELECTRIC CO. Inc. July 12, 1961 [July 21, 1960], No. 25219/61. Heading H4K. In an automatic exchange system which employs time division multiplex, pulse code modulated, between a remote concentrator and a main exchange, as described in Specification 921,384, the subscriber stations are four-wire and arrangements are provided to transfer energy selectively from the send pair of a substation to a common side tone transmission means and thence to the receive pair of the substation concerned. As shown, the common side tone transmission means comprises a side tone in gate 111, storage capacitor 118, clamp gate 119, transmission coil 117 and out gate 121. In operation, the line send gate 107, the common send gate 110 and the side tone in gate 111 are enabled simultaneously for one and a half bit times of the eight bit time time slot and the sample stored on 106 is shared between 112 and 118. The common receive gate 124, the side tone out gate 121, and the line receive gate 128 are all enabled one half bit time after the send sampling has been completed and are disabled two and a half bit times thereafter. During this time the received sample and the stored side tone sample are passed to the receive pair of the substation. One half bit time after the receive gates are disabled, the clamp gates 113 and 119 are enabled for two bit times to prepare for reception of the next sample.
Patent GB-1471139-A (GB)
Title: Building game
IPC: A63F3/04
Filed: 1974-05-14
Abstract: 1471139 Educational device OCTAGON THEATRE TRUST Ltd 14 May 1974 [25 May 1973] 25258/73 Heading G5G [Also in Division A6] A game or teaching device comprises a board having a surface marked and shaped to represent a geographical location, a container 2 having a number of visually distinguishable compartments and in each compartment a plurality of man-made structures such as houses which can be moved on to the playing surface. The board is made in four sections from plastic or hardboard and laths covered with felt which is coloured and raised in some sections to represent higher ground. A few wooden blocks are also attached to represent buildings. The board may be zoned by tapes. A lid (not shown) is provided for the container. Instruction cards and a random selector may be included. The structures may be all the same or different, may represent flats, churches, parks, caravan sites, &c., and may be made from wooden blocks and panels and pins and labels. With each compartment is a card or cards specifying how its contents are to be used. The compartments and cards may be numbered and/or coloured and/or labelled. A separate container may have strips of felt to represent new roads. An alarm clock may be used to limit the time for moves. The whole may be enclosed in a case.
Patent GB-524434-A (GB)
Title: Improvements in electric apparatus
IPC: H05K1/16
Filed: 1939-09-07
Abstract: 524,434. Casting electric components. PHILIPS LAMPS, Ltd. Sept. 7, 1939, No. 25268. Convention date, Sept. 7, 1938. [Class 83 (i)] [Also in Groups V and XXXVI] Casting composite articles.-A radio-receiving or other electrical apparatus having a conductor system 2, 3 with projections 4, 5 which may serve as electrodes of a condenser die-cast as in Specification 515,354, wherein at least one projection has a stiffening member 6 embedded in it. This member may have holes, Fig. 3, to secure adhesion and a lug 9 adapted to engage the hole 11 in the insulating plate 1 securely. If curved electrodes 13, 14, Fig. 4, are desired, to co-operate with an adjustable blind electrode 19, adapted to rotate on a shaft 18, curved stiffeners, each with two lugs, may be used.
Patent GB-1253950-A (GB)
Title: Time delay bimetallic relay
Inventor: SEPE MANLIO O
IPC: H01H61/02
Filed: 1970-05-27
Abstract: 1,253,950. Thermal switches. WAGNER ELECTRIC CORP. 27 May, 1970 [23 June, 1969], No. 25373/70. Heading H1N. A thermal relay has two bimetal blades 2, 4 mounted upon two terminals 6, 8 passing through a mounting panel 10, the free ends of the blades carrying co-operating contacts 18, 20, and a heating element 12 associated with one bimetal and connected to further terminals 14, 16. The blades are slotted to increase their surface area. A further heater may be mounted on the second bimetal.
Patent GB-487847-A (GB)
Title: Improvements in or relating to draught controllers
IPC: F23L17/00
Filed: 1936-09-19
Abstract: 487,847. Regulating air supply to burners. FERVOR AKTIEBOLAG. Sept. 19, 1936, No. 25502. Void. Convention date, Sept. 20, 1935. [Class 51 (i)] (Also in Group XI] The draught in the flue channel 12 of a liquid fuel burner or other combustion-apparatus is communicated by a pipe 36 to a casing 35 and causes a pivoted damper 49 in the casing to operate an apertured disc 46 to regulate the flow of air through openings 40, 41 to the burner. An increase in draught diminishes the air supplied. The damper 49 and disc 46 may be secured to the same shaft or be otherwise connected.
Patent GB-819405-A (GB)
Title: Oil filter and air separator
IPC: B01D21/26
Filed: 1957-08-13
Abstract: 819,405. Filters. WINSLOW, C. A. Aug. 13, 1957, No. 25503/57. Class 46. Lubricating oil to be de-aerated and filtered is pumped tangentially at 44, Fig. 1, into a cyl ndrical casing D, forming a vortex with air and gases in the middle. The oil flows around, and through apertures in, a plate 22 and thence inwards through fibrous filter elements 17 into tubes 18 (19 in the central element), the tubes being mounted in a plate 15. Filtered oil emerges through an opening 12 in the base of the casing D into a cup J and is pumped through a feed pipe K to, e.g. an aircraft engine. The cup substantially prevents mixing of the filtered oil with the main body of oil 57 in a tank A (e.g. a wing tank of an aircraft) in which the casing D is mounted. Air and other gases rise through an annular opening 51, Figs. 1 and 5, between an annular baffle 31 and a central hub 34 and pass outwards through holes 52, Fig. 5, in the sealing flange 33 of a closure member F to an annular groove 54 and thence through very small vents 53 in the casing D into the interior of tank A.
Patent GB-961926-A (GB)
Title: Improvements in and relating to control means for electric motors
Inventor: JOSS IAN DUNCAN
IPC: H02P8/00
Filed: 1959-07-25
Abstract: 961, 926. Electric selective signalling systems; controlling reactors. SPERRY GYROSCOPE CO. Ltd. July 15, 1960 [July 25, 1959], No. 25594/59. Headings G4H and G6C. A step-by-step motor driving the control rod of a nuclear reactor has stator windings W1, W2, W3, each controlled by a transistor T1, T2, or T3 having its base connected to the emitter of an auxiliary transistor T1A, T2A, or T3A. The auxiliary transistors are controlled from a ring circuit 3 comprising transistors T4, T5, T6, which are interconnected so that a control pulse from diode D1 causes a control potential to be applied to one of the auxiliary transistors, a succeeding control pulse causing the potential to be transferred to another auxiliary transistor. The opening of switch SW1 enables the windings W1, W2, to be energized with a steady current for retaining the motor in a stable position. The ring circuit is formed by coupling the collector of each transistor to the bases of the other transistors. Thus, the coupling between transistors T4, T5, is made through pulse-shaping network R16, C1, whilst the coupling to transistor T6 is through resistor R17. The pulses from diode D1 are derived from A.C. source 4, 5 through squaring device 6 and frequency divider 7. The control rod is support by a tape wound on a drum which is driven by the motor through gearing and a flexible coupling. An additional motor is adapted to over-ride the stepby-step motor for rapid movement of the rod, Fig. 2 (not shown). A nuclear reactor has three control rods, each provided with a step-by-step motor associated with transistors controlled from two ring circuits selectively. The two ring circuits each provide control potentials in a different sequence for raising or lowering the rods, the operation of each ring circuit being controlled by an oscillator, Fig. 3 (not shown). Alternatively, one ring circuit only may be used, with a switch to provide the control potentials in the desired sequence. The oscillators may have variable frequency for variable speed control of the motors.
Patent GB-489251-A (GB)
Title: Improvements in or relating to methods of and devices for measuring the difference in lengths of lines or portions of a wedge spectrogram
IPC: G01J3/40
Filed: 1937-09-21
Abstract: 489,251. Spectrum measurement. BAUSCH & LOMB OPTICAL CO. Sept. 21, 1937, No. 25605. Convention date, Oct. 6, 1936. [Class 97 (i)] In order to measure the difference between the lengths of two lines or portions of a wedge spectrum, adjacent images of the lines &c. are formed and one image is displaced in the direction of its length until its top is at the same height as that of the other line, the amount of the displacement being measured. Fig. 1 shows apparatus for measuring the difference between the lengths of two lines such as 29, 30, Fig. 4, of a discontinuous wedge spectrum 10. Reflecting prisms 11, 12 and lenses 13, 14 are mounted on slides 15 which can be moved parallel to the plane of the spectrum by screws 17, 18. The lenses 13, 14 have their foci in the plane of the spectrum 10 so that the rays leaving these lenses are parallel. The rays then traverse reflecting prisms 19, 20, lenses 21, 22 and reflecting prisms 23, 24 so as to form adjacent images 29<1>, 301, Fig. 3, of the selected lines, the foci of the lenses being in the exit surfaces of the prisms 23, 24. The lens 22 is mounted in a slide 25 which can be displaced across the optical axis by a screw 26 in order to displace the image 30<1> in the direction of its length. The displacement of the lens 22 is measured on a scale 28. In the case of a continuous spectrum the slides 15, 16 are provided with slotted diaphragms adjacent the spectrum to enable portions of the spectrum to be selected for measurement.
Patent GB-1284989-A (GB)
Title: Improvements in or relating to tiles or slabs
Inventor: BRIERLEY BERT
IPC: E04C2/40
Filed: 1970-05-28
Abstract: 1284989 Tiles and slabs B BRIERLEY 11 May 1971 [28 May 1970] 25703/70 Heading E1B Slabs of precast concrete, marble, slate, stone, glass, wood, cork, plastics or ceramic material are assembled and used in a manner described in Specification 1094632 and are bounded by two opposite sides (5, 6, 7, 8), (9, 10, 11, 12) and two opposite ends (1, 2), (3, 4) joining in corners 13, 14, 15, 16 lying at the corners of a parallelogram. However the ends are each constituted by a pair of equal chords 1, 2 and 3, 4 of areas of the same radius and the sides are each constituted by a plurality of such pairs of equal chords of arcs having the same radius as those of the ends, one half the number of pairs of chords forming the whole outline of the tile or slab being convex and the other half being concave. The slab may be symmetrical or unsymmetrical and the diagonals equal or unequal.
Patent GB-510390-A (GB)
Title: Improvements in scouring device
IPC: A47L17/04
Filed: 1938-09-02
Abstract: 510,390. Brushes etc.; scouring appliances. GOODLOE, A. M. Sept. 2, 1938, No. 25772. [Class 19] [Also in Group VI] A scouring device for surface-cleansing work comprises a brush 10, Fig. 2, with a cover element 13 of metallic abrasive material. The brushes may be of animal, vegetable or metallic origin. The abrasive may be fabric made of knitted metal ribbon or wire. More than one layer of metal fabric may be used over the brush and the fabric may be removably and adjustably secured by rings 24, Fig. 4, along the handle so that worn patches may be taken up.
Patent GB-716758-A (GB)
Title: Improvements in and relating to typewriters
IPC: B41J7/22
Filed: 1952-10-14
Abstract: 716,758. Typewriters. AUG BIRCHMEIER'S SOHNE. Oct. 14, 1952 [Oct. 24, 1951], No. 25773/52. Class 100 (4) A rest for the type-levers 1 of a typewriter comprises an elastic or resilient pad 7 secured in a two-part holder 8 so that one edge of the pad projects and is engaged by the type levers on their return from an impression stroke and rebounding is avoided. The holder 8 is attached to the machine at each end and is arranged at an acute angle to the horizontal.
Patent GB-1414417-A (GB)
Title: Temperature control system with multiple thermostats
IPC: F24F11/02
Filed: 1973-05-30
Abstract: 1414417 Automatic control of temperature BORG-WARNER CORP 30 May 1973 [12 July 1972] 25892/73 Heading G3R In a temperature control arrangement for a cooling system (e.g. for foodstuffs in a railway box car) which discharges air into a space and receives return air from the same space, a selector circuit 13, Fig. 1 detailed in Fig. 2 (not shown), selects either a thermostat (e.g. thermistor) 10 or 11, disposed in return and discharge air ducts respectively, depending upon whether a desired temperature set signal from a unit 14 (e.g. a pot), is above or below a first reference value signal (e.g. 32‹F) respectively. A comparator 21 compares the sensed temperature with the set value and produces an error signal in a line 24 for regulating cooling and heating stages as a function thereof. The set temperature signal is compared with a second reference signal in a heat over-ride comparator circuit 30, Fig. 1 which produces an output to over-ride the control signal from comparator 21 and prevents operation of heating equipment if the set signal calls for a temperature lower than the value (e.g. 20‹F) represented by the second reference signal. When a cooling demand signal appears in lines 24, 25 a compressor 1 is first turned on by an operational amplifier 85 Fig. 3 via a transistor 107. To prevent rapid cycling ON/OFF by the first compressor as the sensed temperature changes, a time delay circuit including FET 111 introduces a delay of 3 minutes before the operational amplifier 85 can switch the compressor 1 ON again. If the first compressor I is insufficient to meet demand, a second compressor Z is switched ON by an operational amplifier 87. A time delay circuit including FET-151 prevents simultaneous switching ON of both compressors. An operational amplifier 90 is arranged to control a heating coil unit via Tr 96 and relay (not shown), when the error signal level exceeds the reference signal level in line 49, provided that a heat over-ride signal is not present in line 32.