baber/WOPTO huggingface dataset:
Patent GB-1436696-A (GB)
Title: Sheet materials
IPC: D06Q1/10
Filed: 1971-12-23
Abstract: 1436696 Laminates BAKELITE XYLONITE Ltd 23 March 1973 [23 Dec 1971] 60061/71 Heading B5N [Also in Divisions B2 and G2] A sheet material having pre-selected retroreflective areas comprises a transparent or translucent layer of plastics material having one or more convex lens embossments on one surface, and if desired, further component layers of transparent or translucent plastics material bonded thereto, and a fibrous support layer bonded thereto, the sheet material having reflective areas together comprising at least 5% of the total area of the sheet, reflective areas comprising at least 5% of the total reflective area being in retro-reflective combination with one or more of the lens embodiments, at least a part of the reflective areas that are in retroreflective combination with one or more of the lenses being printed and/or coated on and/or forming an integral part or parts of the fibrous support layer. The fibrous support layer may be a woven or non-woven fabric of cotton, rayon, nylon, glass, metal, wool, carbon, polyester or polypropylene fibres, which may be printed with a metal-pigmented ink or comprise a proportion of reflective metal or metallized threads or filaments. The plastics layer, e.g. PVC, may be bonded to the substrate by thermal bonding, by means of an adhesive, e.g. a polyurethane, or by formation in situ, the embossing of the lenses being effected simultaneously with or subsequent to bonding of the plastics layer to the substrate.
Patent GB-1279480-A (GB)
Title: Variable cross-section throttle valve
IPC: F16K1/54
Filed: 1969-12-11
Abstract: 1279480 Valves VOITH TURBO KG 11 Dec 1969 [12 Dec 1968] 60504/69 Heading F2V [Also in Division G3] A throttle valve has a piston 6 movable in a cylinder 5 to vary the flow cross-section of an approximately triangular aperture in the cylinder wall. The triangle is formed with a base parallel to the throttling edge of the piston, a side perpendicular to the base and the other side convex towards the inside of the triangle so that the aperture width parallel to the base decreases exponentially with distance from the base. The aperture may be formed of separate smaller apertures and two sides of the triangle may be curved. A roller 19 on the end of an adjustable-length piston rod 15 is actuated by a cable 8 through a cam 9 to give a constant piston stroke the mid-point of which is adjustable.
Patent GB-1254020-A (GB)
Title: Improvements in or relating to waveform genration apparatus
Inventor: KOEHLER DANKWART
IPC: H01L47/00
Filed: 1969-12-16
Abstract: 1,254,020. Bulk effect pulse generators; pulse modulation circuits. WESTERN ELECTRIC CO. Inc. 16 Dec., 1969 [18 Dec., 1968], No. 61114/69. Headings H3T and H4L. [Also in Division H1] In a bulk-effect waveform generator, in which the product pA of resistivity and conductive cross-section varies along the anode-cathode path, an intermediate control electrode is provided through which domain formation and the distance travelled by a domain can be varied. Either p or A can be varied to provide a continuous or stepwise variation in pA. In the embodiment the body is trapezoidal with the cathode and anode disposed respectively on the small and larger parallel faces. The control electrode may make ohmic or capacitive contact with the body. For operation as a pulse-width modulator the series combination of a biasing and a modulating source in the anode-cathode circuit provides a voltage below the sustaining voltage so that the distance travelled by a domain, initiated by a trigger pulse at the control electrode, and hence the output pulse width, is directly related to the modulating voltage. In use as a voltage controlled VFO the anode-cathode bias is maintained above the threshold voltage. An increase in the control voltage, by causing a new domain to be formed before the preceding one reaches the anode, increases the oscillation frequency.
Patent GB-719815-A (GB)
Abstract: 719,815. Recording-apparatus. SIEMENS & HALSKE AKT.-GES. April 15, 1952 [April 11, 1951; April 14, 1951], No. 9472/52. Class 106 (4) A direct recording high-frequency electric oscillograph comprises a moving magnet meter in which the magnet 13 is suspended in a gap in a laminated core 1, which carries a signal winding (such as 2, 3) the suspension exerts a restoring: torque on the magnet tending to set it with its magnetic axis perpendicular to the magnetic flux produced in the gap by the current in the winding, and a jet nozzle, 16 for emitting recording liquid is mechanically connected to the magnet so as to be displaceable therewith. The signal winding may be arranged in the anode circuit of an amplifier valve (not shown), and a double-wound winding may be employed to compensate for the standing anode current ; also, the winding may be separated into parts which may be selectively connected in series or parallel. As shown the magnet is he'd by tensioning wires 9, 10 in a tube-like housing 5, having a window 7 for the jet, and the nozzle 16 is formed by the end of a capillary tube 11 to which recording liquid is supplied from connection 8 and filter 6. The tube 11 is secured by adhesive to the wires at 12, and the upper chamber 17 of the housing contains damping liquid, e.g. oil, which is prevented from flowing ; down into the lower chamber 19 by the dimensions of bore 18. Eddy current damping of the magnet 13 may be provided also. In a modification, the magnet is secured to the tube 11. A plurality of recording devices may be arranged side by side for recording different processes on the same record strip.
Patent GB-782045-A (GB)
Abstract: 782,045. Secret transmission. HAZELTINE CORPORATION. Dec. 5, 1955 [Dec. 21, 1954], No. 34808/55. Class 40 (4). An input signal modulates a carrier wave, the frequency of which is varied in accordance with the value of a control signal, the modulated carrier being then passed to a circuit which introduces a delay proportional to the instantaneous value of the carrier frequency, and produces an output signal in which the time sequence of the discrete elements of the input signal is altered. In a first embodiment the oscillator 10 generates a carrier wave which is applied, via modulator 20 (see below), to the modulator 11 to which the input signal is also applied. The resulting modulated carrier is passed to the delay network 16 which has a square-law phase-shift characteristic and consequently a straight frequency/time delay characteristic, and imposes a time delay dependent upon the carrier frequency. A number of cascaded low-pass filter sections constitutes a suitable network. The delayed modulated carrier is then applied to a detector 17 which recovers the delayed modulation and supplies it to the output terminals 18. The delay imposed is varied from instant to instant by applying a variable control signal to the reactance tube circuit 13 to vary the oscillator frequency in dependence thereon. This control signal is also applied to a non-linear amplifier 19, the output of which modulates the carrier in modulator 20 so as to cancel out the variations in amplitude produced by the network 16 for different carrier frequencies. In the embodiment of Fig. 4 (not shown), the modulated carrier output of modulator 11 is applied to a plurality of resonant circuits in parallel, each circuit being tuned to a different possible value of the carrier frequency. Each element of the modulated carrier passes through that resonant circuit which is tuned to the instantaneous value of the carrier frequency, is demodulated, and the recovered modulation is then applied to a tapping on a delay line (common to the resonant circuits), the tappings being such that the delay imposed is proportional to the carrier frequency to which the resonant circuit concerned is tuned. The output from the delay line constitutes the output signal.
Patent GB-2000881-A (GB)
Title: Speed governor for internal combustion engines
IPC: F02M59/44
Filed: 1978-07-05
Abstract: The invention provides a centrifugal speed governor for internal combustion engines using fuel injection which prevents the fuel supply from being increased too rapidly upon acceleration of the engine. The speed governor includes a dashpot 9 which is in permanent contact with the fuel supply adjusting member 1 of the injection pump, preferably over the entire upper range of load, by way of a freely pivotable lever 7. Despite rapid actuation of the lever, the dashpot only permits travel of the fuel supply adjusting member in a delayed manner in conformity with the slowly increasing quantity of air. <IMAGE>
Patent GB-2008696-A (GB)
Title: Electromagnetic Track Brakes
IPC: B61H7/08
Filed: 1978-07-28
Abstract: The brake comprises a plurality of coils (6) mounted in a support (5) which is carried resiliently on the railway vehicle to which it is fitted. The coils (6) are flat and mounted to lie in a vertical plane (7) including or parallel to the rail (3) and through each coil (6) passes the bight portion of a U-shape ferromagnetic core (8) the ends of the downwardly extending arms (10) of which constitute pole faces (11) which are located side by side across the rail (3). This creates a magnetic flux transverse to the rail in addition to the flux generated longitudinally of the rail by the longitudinally alternate polarity of adjacent pole faces. The end cores of the longitudinal array have inclined surfaces intended to clear the track of debris. <IMAGE>
Patent GB-2029149-A (GB)
Title: Improved radar display
IPC: G01S7/298
Filed: 1978-08-22
Abstract: A radar display system comprises a binary memory 11 connected to receive and store incoming signals in addressed locations, and an erase address generator 15 for generating the memory addresses in cyclical sequence, transmitting, upon generation in each cycle, addresses of a first category to the memory to erase any signal stored there, and also transmitting, upon generation in each cycle, only some of the addresses of the second category. Scanning means 12 and TV screen 13 may be replaced by a plasma display panel matrix employing the erase address generator 15 with the two erasure rates. <IMAGE>
Patent GB-2009428-A (GB)
Title: Method and apparatus for monitoring the lifting load of a crane
IPC: B66C23/90
Filed: 1978-09-14
Abstract: The invention relates to a method and apparatus for monitoring the lifting load of a crane. In order to overcome disadvantages of known methods which measure the tensile stress in a hoist rope of a crane the invention provides means (11) for measuring a load moment of the crane, means (13) for measuring outreach of a lifting device of the crane, and means for calculating lifting load from these measurements. Problems of compensating for tension losses in the crane hoist rope are thus avoided. <IMAGE>
Patent GB-2008020-A (GB)
Title: Process and installation for the solidification and granulation of pitches, bitumens and resin materials
IPC: B29B9/06
Filed: 1978-10-27
Abstract: The material has a softening point between 65 and 120  DEG C K.S. and is delivered through a supply tube (1) immersed in the water. The material issues from the tube by way of outlets of upwardly-extending small-diameter tubes (7) and forms part-spherical exterior surface balls, which are detached from the outlets by rotary cutters (12) and fall freely through a sufficient depth of the water to cool them. <IMAGE>
Patent GB-2042618-A (GB)
Title: Locking Device
IPC: E05B53/00
Filed: 1979-02-27
Abstract: A bolt 4 is longitudinally movable between locking and unlocking positions when certain conditions are met. The bolt is rotatable by means of knob 17 pulling wire 20, and carries a nut 6 on a thread. Nut 6 is prevented from rotation and so moves along the bolt, its progress being followed by means of a scale 24. At a predetermined scale reading the nut lies opposite catch device 10, rotation of which by depression of knob 15 causes an arm 25 to engage a means on the nut so preventing further axial motion. Continued rotation of the bolt then causes it to move longitudinally. <IMAGE>
Patent GB-2042496-A (GB)
Title: Process for producing gypsum- based hardened body
IPC: C04B7/21
Filed: 1979-02-28
Abstract: A process for producing a gypsum- based hardened body comprises mixing gypsum (CaSO4 &cirf& 2H2O) and slag in a ratio by weight of the former to the latter between 8:2 and 2:8 to prepare a main starting material, adding to the main starting material 0.1 - 5% by weight of alkali salt substance and 0.1 - 5% by weight of phosphoric acid and/or phosphate substance, the respective amounts being based on the weight of the main starting material, further adding water to knead and mold the resulting starting material mixture, and curing the molded starting material mixture under normal conditions and/ or steam-curing the molded starting material mixture at 90 DEG C or below. Optionally reinforcing fibres, a lightweight filler and/or an aluminum sulfate- containing substance may be added.
Patent GB-2016194-A (GB)
Title: Display boards
IPC: G09F7/10
Filed: 1979-04-12
Abstract: A display board has opposed longitudinally extending slots in which the ends of display elements (10) can be detachably inserted. The display elements can be positioned side-by-side along the slots and the relative positions of the elements can be changed, for example to change the order of information (such as the names of contestants) displayed on the elements. The slots are defined between front and back structures (1 and 2) which are secured together. <IMAGE>
Patent GB-2019227-A (GB)
Title: Board game
IPC: A63F3/00
Filed: 1979-04-25
Abstract: A board game comprising a board providing in sequence a base zone, a conflict zone and a scoring zone, the conflict zone including a plurality of protectable numbered positions and a plurality of neutral numbered positions interspersed among the protectable positions, a plurality of pieces for passage during the game from the base to the scoring zone, a plurality of indicators for location at said protectable positions and a pair of dice for determining the passage of said pieces through the zones. Each player has 6 pieces and 12 pegs to go into numbered positions. <IMAGE>
Patent GB-2051676-A (GB)
Title: Books
IPC: B42D3/02
Filed: 1979-07-04
Abstract: A printed book has elongate pages of a plastics material, threaded on a pin at one end so that the pages may be separated by rotation about the pin. Front and back covers of plastics material may incorporate enlarging lenses for reading the pages. <IMAGE>
Patent GB-2058127-A (GB)
Title: A process and aq. graphite suspension for treating steel parts
IPC: C09D105/00
Filed: 1979-08-01
Abstract: A smooth lubricating coating is applied to steel parts to prevent those parts in an electrical precipitation apparatus becoming covered by the accumulation of particulate matter thereon, by cleaning the parts and then penetrating the parts with a liquid suspension comprising between 5% and 25% micro micron sized (i.e. one-millionth of a micron) particles of graphite by weight, between 2% to 10% by weight concentrated hydrochloric acid, between 15% to 20% by weight water, and at least one of the following:   (a) 34%-75% by weight of a solution of water and sodium silicate, with the sodium silicate present at about 40% of the solution, (b) 33%-75% by weight of a solution of water and a water soluble resin (e.g. a carboxy vinyl polymer), the resin being present in amounts between 1% to 10% of the solution, and (c) 33%-7 5% by weight of a solution of water and xanthan gum wherein the gum is present in amounts between 1% to 10% of the solution. t
Patent GB-2030633-A (GB)
Title: Anchoring Device
IPC: F16B7/04
Filed: 1979-08-03
Abstract: An anchoring device for clamping the flange F of a frame to a beam R comprises a U-shaped clamp body 1 and a clamp wedge 9. The body 1 has a pair of arms 7 and 8 joined by a base-piece 2. The inner face of the base-piece 2 is provided with a pair of stepped clamp faces 3 and 4. Offset apertures 5 and 6 are provided in the arms 7 and 8. In use, the clamp wedge 9 passes through the apertures 5 and 6 to clamp the beam R between the clamp face 4 and the wedge and to clamp the flange F against the beam and between the wedge and the clamp face 3. The clamping force can be controlled by the degree by which the wedge 9 is driven into the apertures 5 and 6. <IMAGE>
Patent GB-2029108-A (GB)
Title: Acceleration limit value switch for use on motor vehicle
IPC: B60Q1/44
Filed: 1979-08-17
Abstract: In an acceleration limit value switch for controlling an anti-collision light system in motor vehicles, a permanent magnet 9 loosely resting on an iron plate 10 on a circuit board 3 is deflected as a result of acceleration and, by means of a switching element 7 releases a sprung contact 6 against a fixed contact 5. Connexions to associated circuit components, which are all mounted on the upper side of the circular circuit board, are via pins 45. Contact terminals 4 in a base 2 register in slots (e.g. 46, Fig. 2, not shown) in the board 3, the latter resting in a recess 42. Terminals 4 and pins 45 are then near each other and may be readily connected. The circuitry (Fig. 3 not shown) provides for continual operation of the light system after the switch contacts 5,6 are separated again. <IMAGE>
Patent GB-2034902-A (GB)
Title: Electrostatic Monitoring System
IPC: G01R27/22
Filed: 1979-08-23
Abstract: A system for monitoring a low conductivity liquid carrying an electrostatic charge and flowing along a pipeline comprises two separately insulated conductive wall sections (M1, M3) of the pipeline one downstream of the other. Means are connected to each of these sections for providing a signal representing the relaxation current i1, i2 released from the liquid to each of the wall sections and these signals are processed to provide indications or controls dependent upon the conductivity of the liquid, the relaxation time of the liquid, the streaming current, or the charge density carried by the liquid. <IMAGE>
Patent GB-2034763-A (GB)
Title: Builder Motions
IPC: D01H1/36
Filed: 1979-10-15
Abstract: In a ring spinning frame the longitudinal reciprocating motion of the yarn guide 18 is varied by an electronic reversing device characterised by a theoretical value transmitter 46 for traversing the yarn in one direction towards a stop and a theoretical value transmitter 48 for traversing the yarn in the reverse direction towards a second stop, an actual value transmitter 44 representing the actual position of the yarn guide 18, a comparator 54 for comparing the adjusted theoretical values and the actual value with the comparator coupled to a reversing actuator 62. <IMAGE>
Patent GB-2034953-A (GB)
Title: MOS-FET array drive for liquid crystal matrix display
IPC: G09G3/36
Filed: 1979-10-24
Abstract: A matrix display panel a.c. operated comprises gate lines 2 and perpendicular source lines 1 on a pair of substrates of which one carries a MOS-FET 3 array including one FET for each gate-source line intersection and the other carries a common electrode 19, possibly divided into strips parallel to the gate lines 2, and liquid crystal material between the FET's and the common electrode. The common electrode receives a voltage waveform differing between odd and even scanning frames. In a write mode, the source line is supplied with a pair of positive and negative pulses during odd frames and with zero during even frames. In a non-write mode, the source line is supplied with zero during odd frames and with a pair of positive and negative pulses during even frames. The voltage across a written intersection then alternates, but across an unwritten one is zero. <IMAGE>
Patent GB-2044920-A (GB)
Title: Optical interferometer
IPC: G01B9/02
Filed: 1979-12-19
Abstract: A system for checking the angular position of a pivotably-movable mirror 4 comprises a dual-beam zero-path- difference interferometer with a polychromatic light source 2, and a detector 3 of broad-band spectral sensitivity, the dual beams being formed by partially-transmissive/partially- reflective zones 6, 7 on one surface of a plane parallel plate 1 the other surface of which has internally reflective zones 9, 10, mirror 4 forming part of the interferometer and reflecting each of the light beams 12A, 12B. Detector 3 emits an output signal burst the peak value of which denotes when the mirror is in the predetermined angular position which provides a zero path difference for beams 12A, 12B. Different angular positions of the mirror 4 can be checked by arranging a plurality of interferometers having different optical path lengths or alternatively beams 12A, 12B can have a mixture of polychromatic and monochromatic light, the cyclic nature of the images of the latter providing a measure of the angular deviation of the mirror. <IMAGE>
Patent GB-2068867-A (GB)
Title: Aircraft wings
IPC: B64C3/16
Filed: 1980-02-08
Abstract: In the wing tip (1) the lower portion (3) of the wing is stopped short of the wing tip by, and including a cut out of curved section along the flight path whilst leaving the upper portion of the wing tip with a flat lower surface (2) to project outboard to the limit of the span of the wing. This is intended to decrease the induced drag arising as a result of wing-tip vortices. <IMAGE>
Patent GB-2048484-A (GB)
Title: Apparatus for indicating a measured physical characteristic
IPC: G01D1/12
Filed: 1980-02-08
Abstract: Apparatus for indicating a measured physical characteristic e.g. a torque measuring rig includes a releasable one-way brake in the mechanism 18 by which the pointer 16 is driven to sweep the scale 13, the brake allowing the pointer 16 to be driven to indicate increasing torque but holding the pointer 16 at the peak value location whilst the applied torque decreases from that peak valve, and a shock absorbing spring 29 in the mechanism 18 which expands to allow the collapse of drive links 26,27,28 and the pointer to be held stationary whilst the applied torque decreases. The brake comprises a one way roller clutch free wheel device which is carried by the pointer spindle 14 and which is spigotted into an annular pulley 36, and a cable 38 which is wound around the pulley 36 and is tensioned by a spring loaded release button 41 to hold the pulley 36 stationary. <IMAGE>
Patent GB-2054977-A (GB)
Title: Reciprocating electric machines
IPC: H02K33/18
Filed: 1980-06-06
Abstract: A reciprocating electric machine which can function as a motor or a generator includes means 14, 18 for producing two magnetic fields which oppose one another. A magnetic core 32 is located in the fields and a coil 33 surrounds the core. The core is connected via drive rods 34, 36 to a converter 12 so that reciprocating movement of the coil is converted to rotary motion by the converter, or vice versa. Commutating means 56 control the direction of current flow through the coil to achieve continuous controlled motor or generator action. In the motor shown, the coil 33 is connected to a D.C. source 58 by way of the commutator 56 and conductive leads 60. <IMAGE>
Patent GB-2080962-A (GB)
Title: Light-sensitive Coatings or Lithographic Plates
IPC: G03F7/105
Filed: 1980-07-24
Abstract: It has been found that several groups of substances, known per se as vat dyes, can undergo colour changes on change of pH caused by exposure to actinic or ultra-violet light. These indoanilines and indonaphthylamines are derived from oxidative coupling of N-substituted p-phenylene diamines, or N-substituted 1,4-naphthalene diamines, with phenol, naphthol, hydroxyquinoline or their derivatives, and are present as indicators in light sensitive coatings containing naphthoquinone diazide esters.