baber/WOPTO huggingface dataset:
Patent GB-803307-A (GB)
Abstract: 803,307. Measuring rotor unbalance electrically. GENERAL MOTORS CORPORATION. Jan. 16, 1957 [Jan. 18, 1956], No. 1630/57. Class 40 (1). The unbalance of a rotating disc is measured electrically and vectorially added to a signal representing additional unbalance that will be added later, in order to determine the compensation required, in magnitude and angle. As shown, rotor 10 is driven by motor 14 via a flexible spindle 12, the unbalance producing a sinusoidal signal in pick-up 28 which is fed via amplifier 40 and synchronous commutator 48 to meters 94, 98. The commutator 48 comprises two cyclically operated switches S1, S2 operated by a cam 106 driven synchronously with the rotor 10 by motor 14 and gears 104, the switches being 90 degrees apart and operating relays 60, 62 whereby the output from amplifier 40 is fed to meters 94, 98 for one half of each cycle, the halves being 90 degrees out of phase. The angular position of cam 106 is adjustable by a differential gear-box 140, and is indicated by a pointer 146 on a dial 148. An auxiliary signal representing unbalance which will be added subsequently is produced by a further pick-up 162 co-operating with a hole in the rotor 10, the resultant pulses being amplified at 174 to trigger a one-shot multivibrator 180 giving a symmetrical square wave at a phase determined by the angular position of pick-up 162, and the required magnitude is taken from a potentiometer 182 and mixed in amplifier 40 with the basic unbalance in the rotor 10. Cam 106 is then rotated until meter 98 reads zero, when pointer 146 indicates the phase and meter 94 indicates the magnitude of the total unbalance which has to be compensated.
Patent GB-2069795-A (GB)
Title: Solid state digital television cameras
IPC: H04N9/07
Filed: 1981-01-29
Abstract: A solid state digital television camera has a solid state image sensing device 1, 2 an analog-to-digital converter 3.33 for converting the output of the image sensing device 1, 2 to a digital colour signal, a filter 6, 36 for providing a predetermined filter characteristic to the digital colour signal, and a digital colour modulator 21, 41 for modulating the output of the filter 6, 36 to produce a digital modulated signal. The processing rate between the solid state image sensing device 1, 2 and the filter 6, 36 is the same as the sampling rate of the solid state image sensing device 1, 2, or n DIVIDED m.p .fsc (eg. 4 DIVIDED 3 fsc) where fsc is a colour sub-carrier frequency, p is 3 or 4, and m and n are small integers. The processing rate for the remaining circuitry is pfsc (eg. 4 fsc). In addition, a digital-to-digital converter 20, 40 for converting the processing rate from n DIVIDED m. p.fsc to pfsc is provided between the filter 6, 36 and the digital colour modulator 21, 41. Thus, the digital television camera is operated at a relatively slow sampling drive rate and hence is suitable for integrated circuit construction.   <IMAGE>
Patent GB-2085498-A (GB)
Title: Manufacturing and packaging socks
IPC: D06F59/06
Filed: 1981-02-02
Abstract: The manufacture of socks conventionally involves, after dyeing the formed sock, the steps of boarding and heat setting which are labour intensive. In order to avoid the necessity for these steps, a sock or pair of socks is stretched over an open frame former, e.g. of polypropylene, which forms part of the packaging of socks for sale and which is provided with hinge portion 16. A sock or a pair of socks are folded, on their former, end to end. <IMAGE>
Patent GB-2071664-A (GB)
Title: Phosphonic acid derivatives of 7-((2-amino-4- thiazolyl)oximino)cephalosporins
IPC: A61P31/04
Filed: 1981-03-03
Abstract: Novel compounds having the general formula I,   <IMAGE>  wherein:  the   <IMAGE> group is in the syn or anti configuration; R represents hydrogen, sodium, potassium, benzyl, p-methoxybenzyl, diphenylmethyl, t-butyl, -CH2-O- lower alkyl,   <IMAGE> or   <IMAGE> R1 is in the a-configuration and represents hydrogen or methoxy; R2 and R3 independently represent hydrogen, methyl, ethyl, i-propyl or n- propyl; R4 and R%4 are the same and represent hydrogen, sodium, potassium, or lower alkyl, or one is hydrogen and the other is lower alkyl;  R5 represents hydrogen or lower alkyl;  n is 0, 1 or 2;  X represents hydrogen,   <IMAGE> R6 represents hydrogen or lower alkyl; R7 represents hydrogen, lower alkyl, -(CH2)m-N-(lower alkyl)2, -(CH2)m-COOR8 or -(CH2)m-SO3R8;  R8 represents hydrogen, sodium, or potassium;  m is 1, 2, 3 or 4, are useful as antibacterial agents.
Patent GB-2095532-A (GB)
Title: Ventilated and corrugated smoke filter
IPC: A24D3/04
Filed: 1981-03-27
Abstract: A filtered cigarette has an exposed outer wrapping (6) which has corrugations (3) forming channels (7) open at the mouth end of the filter (1) and extending longitudinally of the filter, the exposed wrapper providing in use for the drawing of external air into said channels, e.g. via perforations (4), and directly into the smoker's mouth. The exposed outer wrapper may constitute a tipping overwrap. The corrugations preferably extend only partially the length of the filter. There is also provided a corresponding filter per se, for attachment to a tobacco rod by ring tipping. <IMAGE>
Patent GB-2086484-A (GB)
Title: Motor vehicle overrunning fuel cut-off control
IPC: F02M3/04
Filed: 1981-06-22
Abstract: A solenoid valve 10 is opened to connect the engine intake manifold to the carburettor float chamber above the fuel in response to a switch 24, 25 being closed when the accelerator pedal is released, the engine is above idling speed and the vehicle is running above a predetermined adjustable speed. The engine speed may be detected by a vibration sensitive switch 30 or a switch (60), Figure 4 and 5 (not shown), operated by a member (61) which rests on a vehicle tyre (62). The valve 10 may be opened at predetermined regular intervals during vehicle cruising. An alarm 55 is energised in response to an excessive pedal depression rate. <IMAGE>
Patent GB-2102670-A (GB)
Title: Visored hat construction
Inventor: TOWNSEND CHARLES EDWARD
IPC: A61F9/04
Filed: 1981-07-09
Abstract: The invention relates to a visored hat construction offering various advantages over known designs. The construction has an outwardly projecting visor A which comprises a substantially flat section of open cell configuration which substantially prohibits the transmission of overhead frontal and lateral rays of light direct to the eyes of the wearer without inhibiting the wearers lateral vision.   <IMAGE>
Patent GB-2081570-A (GB)
Title: Improvements in dental care equipment
IPC: A46B5/00
Filed: 1981-07-20
Abstract: A toothbrush comprises an elongate plastics handle (10) and a detachable plastics head (12) carrying bristles (14). In order to achieve a releasable connection between the head and the handle, the head has an axially projecting spigot (16) which is slidably insertable into a hore (18) in the handle and is retained therein for normal use by means of a clip 20 disposed within the handle which is adapted to make a snap-fitting engagement with a circumferential groove 22 on the free end of the spigot 16. Relative rotation of the head and handle is prevented by the provision of a pin fitting in a hole, or a parallel sided slot 24 on the end of the handle which slidably receives a rectangular sectioned end portion of the head. <IMAGE>
Patent GB-2108326-A (GB)
Title: Antennas
Inventor: STUDD ARTHUR CHARLES
IPC: H01Q19/02
Filed: 1981-10-24
Abstract: In an antenna, such as a Cassegrain antenna, in which a reflector 2 blocks some of radiation reflected from primary dish 7, a second emitter 4 is provided and the radiation from this is reflected at 5 to supplement the main radiation in the blocked region. The phase and amplitude of the radiation from emitter 4 is adjusted to that of the main emitter 3 by components 8 and 9. <IMAGE>
Patent GB-2109506-A (GB)
Title: An obturator and seat arrangement for a valve
Inventor: BARAM DAVID
IPC: F16K41/10
Filed: 1981-10-27
Abstract: The present invention relates to an obturator (20) and seat (21) arrangement for a valve (10) wherein the obturator (20) cooperates with the seat (21) to regulate fluid flow through the valve (10). Closure of the valve (10) is achieved by the mating of complimentary formations (70, 84) on the obturator (20) and seat (21). One of the formations (84) is provided with a seal (88) which is brought into contact with the other formations (70) to close the valve (10). One of the formations (70) is in the form of an annular projection and this cooperates with an annular recess which constitutes the other formation (84). Preferably, an insert (88) is provided in the annular recess (84). Advantageously, the obturator (20) and seat (21) are each provided with an additional formation (72, 86) which contact each other when the valve (10) is fully closed. <IMAGE>
Patent GB-2092654-A (GB)
Title: Framed panels
IPC: E06B3/62
Filed: 1981-12-21
Abstract: A pane of glass (22) is held in a channel (16) of a frame 10 with its edge (26) between, but spaced from, the sealing walls (14) by blocks (30). Sealant material (36) between the pane (22) and each sealing wall (14) has an unengaged surface (40) opposite the peripheral wall (12). <IMAGE>
Patent GB-2090919-A (GB)
Title: Beverage dispensing apparatus
IPC: B67D1/04
Filed: 1982-01-07
Abstract: An arrangement for preventing overcarbonation of beverages in a dispensing system comprising keg 1, CO2 gas supply 3, volumetric meter 6 and bar tap 7. The arrangement has a gas flow sensor 10, conveniently a PTC thermistor, and gas shut-off valve 9 with a circuit such that valve 9 is opened during dispensing and following dispensing is maintained in this open state by current flow through thermistor 10 which is cooled by the gas. When gas-flow reduces sufficiently or stops the thermistor self-heats to close the valve 9. The arrangement is specifically responsive to gas flow state during repressurisation rather than a fixed time delay. <IMAGE>
Patent GB-2098540-A (GB)
Title: Apparatus for tenderizing veneer
IPC: B27D1/00
Filed: 1978-07-14
Abstract: The apparatus comprises a veneer lathe adapted to cause a rotation of a material wood 10, a knife 11 positioned substantially parallel to a tangent to the rotating material wood 10 and movable relative to the material wood 10 to peel a veneer therefrom, a free-running cut forming roll A engageable with the veneer cut from the material wood 10 and movable relative to the material wood 10 in accordance with the movement of the knife 11, the cut forming roll A having a plurality of alternate projecting and recessed parts, the projecting parts carrying a plurality of edge members 3 projecting radially outwardly therefrom; guide means 6a, 6b mounted on the knife 11 and adapted to guide the veneer peeled from the material wood 10 by the knife 11, so that the veneer extends around part of the circumference of the cut-forming roll A and the edge members 3 form in one surface of the veneer a plurality of cuts extending substantially in the fibre direction of the veneer, and abutment means 7a on the opposite side of the veneer from the downstream side end of the guide means 6a, 6b and adapted to abut against the veneer so as to bias the veneer away from the cut-forming roll A, and to bend the veneer in the direction opposite to the surface having said cuts therein. <IMAGE>
Patent GB-2091868-A (GB)
Title: Air heater
IPC: F24H3/10
Filed: 1982-01-28
Abstract: In an air heater wherein the combustion products from a burner 11 pass firstly through the tubes of a main heat exchanger 12 and thereafter through the tubes 1 of a secondary heat exchanger 13, air to be heated is blown horizontally over the tubes of both heat exchangers by a fan 15. The secondary heat exchanger tubes 1, which have a flattened cross section are provided with depressions 5 and 6. Specific dimensions for the height, width etc. of the tubes 1 are disclosed. <IMAGE>
Patent GB-2115198-A (GB)
Title: Improvements in or relating to visual display instrument component assemblies
Inventor: KITCHING ALAN
IPC: G01R13/40
Filed: 1982-02-19
Abstract: A linear array of e.g. sixteen light control or emitting devices, e.g. liquid crystal or LED (2), are assembled in a unitary capsule (1), together with integrated circuit (5) and e.g. ten connector pins (6). The circuit comprises a bi-directional shift-register and latches, so that a column of activated devices or a dot, counting from either end, can be displayed and a new member can be set up and the display instantaneously changed. Analogue values can be displayed via a voltage- frequency converter. Capsules can be connected end to end indefinitely for a longer display. <IMAGE>
Patent GB-2094532-A (GB)
Title: System for rationally managing the retail trade with goods
IPC: G06Q30/00
Filed: 1982-02-25
Abstract: A system for rationally managing the retail trade comprises a number of pay desks (111-133), which can be connected to a computer installation (14) comprising a unit (141) for processing information from the pay desks. With the system are associated account cards intended for customers, on which cards are fed in a permanent manner data on the customer in question. Means at the pay desks scan and forward said data and receive information on purchases made by a customer and possible other data. Means in the processing unit compile and store data and information which later on are emitted to the management of the system (15) and, respectively, to said pay desks at predetermined times. The computer installation comprises a customer memory for special information on customers and a goods memory for special information on goods, which memories automatically are actuated under certain conditions. In addition, a special test and planning memory is provided for special customer-related goods information, intended to be utilized, for example, during the introduction of a new article. At a common utilization of the system, the memories are divided into a plurality of partial memories, each of which can be connected to only one user. <IMAGE>
Patent GB-2096808-A (GB)
Title: Magnetic card reading equipment
IPC: G06K13/063
Filed: 1982-04-13
Abstract: In a magnetic card reader, the card drive system includes a drive wheel 9 which bears on the card and not only drives it along a guideway 12 which extends perpendicular to the drive wheel axis but also, being of frusto-conical shape, applies to the card a lateral thrust which (for both directions of travel of the card) keeps it against that side of the guideway (including a bearing surface) towards which the wheel diameter increases. In combination with such drive wheel a novel magnetic-head configuration 8 against which the card is pressed by the drive wheel is well adapted for use with cards in which the magnetic material is of high coercivity and is embedded within the thickness of the card and not exposed at the faces thereof. Photo-electric sensors enable opening of an entry shutter, starting of the motor, and other transport operations. Two card drive units and readers with multiple track reading heads are also disclosed. An erase head may remove data from cards having low coercivity magnetic material. <IMAGE>
Patent GB-2123472-A (GB)
Title: Electromagnetic lock
Inventor: CLARKE WALTER WILSON HUGH
IPC: E05C19/16
Filed: 1982-05-11
Abstract: An electromagnetic lock has the holding force of a relatively small and weak electromagnet (10) supplemented by causing the first minimal opening movement of a door (30) to which the lock is applied to result in movement of a hook (24) into engagement with a rod (36) rigid with the electromagnet housing (32), whereby the rod (36) then sustains any additional force applied to the door. The armature (10) of the electromagnet is supported by a mounting plate (12) pivotally supported at (14) on a base plate (16). The hook (24) is pivotally mounted by bar (22) in plate (16). Mouse-trap spring (28) biasses hook (24) to a position in which it clears bar keeper (36), but the minimal opening of the door causes the armature (10), held by electromagnet (34), to tilt plate (12) forwards. This engages end (24A) of the hook and pivots it into engagement with keeper (36). Spring (18) biasses the plate (12) away from base-plate (16) to prevent the hook being released by minimal opening followed by a slow closing. <IMAGE>
Patent GB-2106029-A (GB)
Title: Method of and apparatus for manufacturing objects from short oriented reinforcement fibres or fibre mixtures
Inventor: MERZ HERBERT
IPC: D21J7/00
Filed: 1982-08-11
Abstract: Short oriented fibers contained in a slurry are deposited in a oriented condition on a filtration base after having passed through an orientation section (6). The filtration base takes the form of a mould filter (1) has a negative mould wall conforming to a complex contour area of an object to be moulded. The mould filter can be rotated about its axis of rotation during the deposition process. The mould filter and the orientation section are three- dimensionally adjustable one relative to the other. The method and apparatus are suitable for the manufacture especially of rotationally symmetrical components of high strength and complex outer or inner wall configurations. <IMAGE>
Patent GB-2119836-A (GB)
Title: Manhole cover or grating and frame assemblies
Inventor: SAINS DENNIS WILLIAM
IPC: E02D29/14
Filed: 1983-01-06
Abstract: A manhole cover or grating is locked within its frame 25 by a resistant catch. As shown a grating 10 of steel or ductile iron is so shaped that it is inherently laterally resilient, has hinge pins 42, 43 for snap-fitting into frame socket 44, and has a rebate 56 which, as the grating is closed, rides down the inclined side of, and snaps under, a rigid trip element 50 on the frame. Modified forms of grating and catch are described. The grating shape shown provides cranked slots between its bars to avoid trapping bicycle wheels. <IMAGE>
Patent GB-2142870-A (GB)
Title: Manufacturing vascular prosthesis by electrostatic spinning
Inventor: FISHER ANTHONY COLIN
IPC: A61F2/06
Filed: 1983-07-06
Abstract: Apparatus for manufacturing synthetic vascular grafts by an electrostatic spinning process comprises a rotating mandrel (10), an array of capillary needles (11, 12, 13) arranged on a manifold (14) for directing polymer solution towards the mandrel (10) when electrostatically charged, and electrodes (18, 19) for influencing the electrostatic field experienced by the polymer solution. There are means for altering the electrostatic charge of the electrodes (18, 19). <IMAGE>
Patent GB-2129605-A (GB)
Title: Electron beam addressed liquid crystal light valve and method for construction thereof
Inventor: HAVEN DUANE A
IPC: G02F1/1341
Filed: 1983-09-23
Abstract: A twisted nematic liquid crystal cell comprises a nematic liquid crystal material 34 sandwiched between a transparent faceplate 24 having a transparent electrode 26, and a transparent, dielectric target plate 30. A writing gun 16 directs electrons at the target plate, a flood gun 18 directs a cloud of electrons at the target for restoring the potential thereof, and secondary emission and free flood gun electrons are collected 20; the writing gun, flood tem for directing light through the gun, and collector being disposed outside a field of view 22 through the cell. A projection system utilizes polarizing material in front of and behind the cell, and an optical system for directing light through the cell. The cell is constructed by coating one side of a glass faceplate with a transparent electrode and forming alignment surfaces on the electrode and target plate. An inlet and an outlet through the faceplate are provided, The target plate is placed over the transparent electrode, separated therefrom by a spacer. The space within and surrounding the assembly is evacuated, and degassed liquid crystal material is forced through the inlet until the cell is filled, at which point the inlet is sealed off. Thereafter, pressure on the outside of the target plate is increased until it is parallel to the faceplate, the outlet tube is then pinched off. <IMAGE>
Patent GB-2148114-A (GB)
Title: Powder type fire extinguisher
Inventor: CARR ROGER
IPC: A62C35/02
Filed: 1983-10-21
Abstract: A powder fire extinguisher contains powder which will be expelled, through an outlet passage by a compressed gas. The gas is contained in a cylinder which is punctured to operate the extinguisher. A valve (31, 32) is positioned in the outlet passage, and when the gas cylinder is punctured, the gas pressure immediately acts on the valve (31, 32) to hold it closed until pressure has built up in the main body of the extinguisher and the powder is completely fluidized. Once the pressures on opposite sides of the valve are equal, the valve will open since the areas exposed to pressure on the two sides are different. <IMAGE>
Patent GB-2130977-A (GB)
Title: Safety devices for securing wheelchairs in vehicles
Inventor: FRETWELL PERCY
IPC: A61G3/08
Filed: 1983-10-26
Abstract: The device 10 has upright members 13, 14 with two lower ends 61, 61' for engaging a floor, and a single upper end for engaging a roof 65. The height can be adjusted using releasable clamp 55. There is a backrest and headrest 70, a lap belt 96, 97 and shoulder harness 103, 104. A further belt arrangement 80 may hold the chair to the device at a location below the seat. The device may be adjustable on the floor 63. The device can be removably mounted in a vehicle and a latch may hold it in the installed position. In an alternative arrangement the device does not extend to the roof of the vehicle. <IMAGE>
Patent GB-2131847-A (GB)
Title: Modular space frame
Inventor: BARROW ROBERT HODGSON
IPC: E04B1/19
Filed: 1983-12-02
Abstract: Tubular struts or ties 2 are fixed together by clamping to connectors 1. Each strut or tie 2 has, a tapering end piece 4 which receives a bolt 6. Each connector 1 is spherical and has screw-threaded bores 8 whose axes pass through the centre of the sphere. Each bore 8 is surrounded by a flat facet which forms a seating for a sleeve 7 at the end of the strut or tie 2. Bolts 6 are screwed tightly into bores 8 by a tool inserted through an opening 3. <IMAGE>
Patent GB-2133762-A (GB)
Title: Conveyor housing access port
Inventor: SWINDERMAN ROBERT T
IPC: B65G21/00
Filed: 1984-01-14
Abstract: In a conveyor belt housing access port and elastic closure therefor, for use on a conveyor belt cleaner installation, hinges, catches, gaskets and the like are completely eliminated. The cover is retained in place by inherent tension and includes securing means which may incorporate a magnetic force, or interengaging means between the cover and a continuous rim about the opening. The securement may involve an enlargement of the rim such as a ledge, or a flange and an interengaged groove, or a flange on the cover operatively related to such enlargement. <IMAGE>
Patent GB-2136081-A (GB)
Title: Extendable means to support tools
Inventor: BLASECK KLAUS
IPC: B66F3/00
Filed: 1984-01-27
Abstract: Extendable support means comprises three steel bands (6, 7 ,8) each wound into a coil (3, 4, 5). The free ends of the three steel bands (6, 7, 8) are secured to a common support (16). The steel bands each have a row of slotted perforations adjacent one longitudinal edge and a row of punched out spigots adjacent the other longitudinal edge. As the bands are unwound and fed into the guide (15) by pairs of rollers (11, 12, 13), the punched out spigots of each band engage in the slotted perforations of an adjacent band to form a dimensionally stable triangular profile (14). The extendable support means may, as shown, support a television camera (17), measuring instruments, illuminating means or other tools in otherwise inaccessible areas. <IMAGE>