baber/WOPTO huggingface dataset:
Patent GB-2260218-A (GB)
Title: Infrared detectors
Inventor: BREWITT TAYLOR COLIN RAYMOND
IPC: H01Q3/26
Filed: 1984-10-04
Abstract: An infrared detector (1) comprises a thin film (3) of photo-responsive material on transparent dielectric material (9) with an array of planar antennae (13) adjacent to the film surface. The antennae (13) are separate from ohmic contacts (5, 7) arranged to connect the film (3) to an external circuit. The antennae (13) concentrate radiation in fringe fields at antenna edges and extremities interacting with the photo-responsive material (3). The detectors may be photovoltaic or photoconductive. The antennae (13) may be rectangular. bow-tie, cruciform, elliptic, circular or square, and are dimensioned for resonance (preferably half-wavelength resonance) at frequencies within the photo-responsive material absorption band. Half-wavelength resonant antennae are best matched by F/0.7 optics. The detector may be a reticulated array. The dielectric material (9) may be formed as a lens. <IMAGE>
Patent GB-842901-A (GB)
Abstract: 842,901. Gyro-verticals. SMITH & SONS (ENGLAND) Ltd., S. Jan. 31, 1958 [Feb. 1, 1957], No. 3677/57. Class 97(3) A gyroscope carried in gimbals in a moving craft is provided with means for erecting the spin axis in the roll and pitch directions controlled by means for detecting the inclination of the axis relative to the direction of gravity, the roll erecting means being energized by the pitch detecting device during conditions of lateral acceleration, an additional roll erecting torque, not exceeding that generated as above, being produced in response to the relative inclination of the gyro axis and a direction in the craft which is 'vertical during normal level motion. In the form shown the gyro casing 3 is supported ir, gimbals with roll, and pitch axes 4 and 5 in a casing 1. Torque motors on the gimbal axes, controlled by mercury switches 8 and 9, erect the gyro about the pitch and roll axes in level motion. Thus the contact 10 of the switch 8, Fig. 2. is connected to one of the contacts 11, 12, if the axis is inclined in the pitch direction, to energize from the transformer 26, one end of the winding of the pitch erection motor winding 31, having a capacitor 32 in parallel and having its centre tap also connected to the transformer. The roll erection motor has two windings 33, 34, the former normally energized through the switch 9. When the gimbal system is inclined relatively to the casing 1 about the roll axis 4 contacts 16, 23 engage one or other of pairs of contacts 17, 18 or 24, 25 respectively. The system 16, 17, 18 energizes the winding 34, with capacitor 36, of the roll erection motor directly from the transformer in a sense depending on the direction of inclination of the gimbal system. The system 23, 24, 25 energizes a solenoid to operate a switch comprising moving contacts 37, 38 and fixed contacts 39, 40,.41, 42, 43, 44. When the solenoid is not energized the roll erection motor winding 33 is controlled from the switching through contacts 40, 43. When the gimbal system is inclined the motor is controlled from the switch 8, in a sense depending on the direction of inclination through the contacts 39, 42 or 41, 44. Specification 812,294 is referred to.
Patent GB-849097-A (GB)
Abstract: 849,097. Workmen's time-recorders. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 26, 1957 [March 29, 1956], No. 9867/57. Class 106 (4). A workmen's time-recorder comprises a plurality of digit printing positions each equipped with means for printing a group comprising all digits possible at that position, a marking device which produces an indication distinguishing one of the digits so printed, clock-controlled means which advances the digit-printing means to vary the arrangement of the digits in each group and adjust the marking device to vary the positions of said indications and means for operating the digit printing means and the marking device. A recorder for recording time spent on a job up to 60 hours in graduations of a hundredth of an hour has a drum at each of the positions I-IV, Fig. 1a, carrying on its periphery digit type of which developed imprints are shown in Fig. 1a. The digits at position II indicate hours, and those at positions I, III and IV, tens, tenths and approximate hundredths of hours respectively. When the drums are operated to print a record card only one of the rows of digits (designated 0-9 in the left hand column) is printed. Clockcontrolled means rotates the drums step by step: drum IV advances one step per minute, drum III one step every six minutes, drum II one step per hour and drum I one step every ten hours. A unit may be added which prints the time and date at which recording started to the left of position I. Thus if a job started at 7 a.m. of February 6th when the drums were in the " 0 " position the imprint shown at 2 (a) would be made on the record card. The marking device comprises four further drums developed imprints of which are shown in Fig. 1b, which are also rotated bv the clock-controlled means in synchronism with the digit-printing drums; the printing surfaces of this second set of drums are so arranged that when overprinted on any of the rows of digits printed by the first set all the digits but one in each of the four groups are obliterated. The remaining digits are those which occur in the blank spaces shown in Fig. 1b. If the time spent on the job is 35 hours 39 minutes i.e. 35.65 hours, both sets of drums having been rotated step by step in synchronism as explained above, at the end of the job the following rows of digits and cancelling type will be in printing position: on drums IV row 3, on drums III row 6, on drums II row 5, on drums I row 3. So if the imprint of Fig. 2 (a) is then overprinted by the drums of the marking device the imprint of Fig. 2 (b) is obtained, indicating a time of 35.65 hours spent on the job. A unit may be added to the drums of the marking device which will record the time and date on which the job was finished, Fig. 2 (b). The digitprinting and marking drums are advanced only during actual working time. Instead of the arrangement shown in Fig. 1b the marking drums may carry e.g. arrow heads to indicate the digits which would occupy the blank spaces. Type-carrying endless bands may replace either or both the sets of drums. A machine is described having four sets of drums so as to accommodate two shifts.
Patent GB-2153819-A (GB)
Title: Selective halogenation of benzene di- and tri-methanol compounds; novel halomethyl-benzene methanols
Inventor: COSTELLO ALAN THOMAS
IPC: C07C29/62
Filed: 1985-01-11
Abstract: Benzene di- and tri-methanol compounds are selectively halogenated by reaction in aqueous solution at 70 to below 100 DEG C with HCl or HBr in the presence of a water immiscible solvent eg. toluene. The process is particularly suitable for the preparation of 4-bromo- and 4-chloromethyl-2,3,5,6-tetrafluorobenzene methanols which are believed to be novel compounds and useful in the synthesis of pesticidal compounds.
Patent GB-2169994-A (GB)
Title: Systems for activating a firing device on board a weapon
Inventor: SEXTON RONALD DAVID
IPC: F42C11/00
Filed: 1985-01-23
Abstract: A safety and arming systems for detonating a missile warhead or igniting a missile boost motor, in which faults do not initiate premature arming, initiates firing on the attainment of a set of predetermined operating conditions. A transformer 1 is connected to an electronic switch 7,8 on the primary side 5 and to a detonator 3 on the secondary side 6, the switch having a plurality of control inputs 10-12 for receiving signals indicative of the attainment of each of the operating conditions. Once the operating conditions have been attained, a dc supply to the primary coil is chopped according to pulses received at 9 from a clock pulse generator to generate an ac supply in secondary coil 6. <IMAGE>
Patent GB-2157116-A (GB)
Title: Method of encoding colour image information
Inventor: INUZUKA TATSUKI
IPC: G06T9/00
Filed: 1985-03-19
Abstract: Three chrominance signals representative of a colour image are represented by a coordinate system in a uniform colour space, and a probability of occurrence of colours on the colour space and a correlation of the chrominance signals for pixels of the image are referenced in encoding said three chrominance signals. The three input chrominance signals are converted 110 to chrominance signals on a uniform colour space and temporarily stored 120. A chrominance signal to be next encoded is predicted 130 by using the stored chrominance signals, and a prediction error signal is derived 140 from the difference between the predicted chrominance signal and the actual chrominance signal. An order of probability of occurrence of the prediction error is determined 150 based on the predicted chrominance signals, and this order is used to reorder 160 the prediction errors. The order for the chrominance signal which is to be next encoded and transmitted is encoded and transmitted by an encoder/transmitter 170. <IMAGE>
Patent GB-2158702-A (GB)
Title: Handle for carrying plastics containers or bags provided with flexible gripping means
Inventor: BENSI GIORDANO
IPC: A45F5/10
Filed: 1985-05-07
Abstract: A handle comprises a rigid portion 1 of an appropriate size so that it can be gripped easily, and at least one flexible portion 2 connected to the rigid portion 1 in such a way that the containers or bags whose gripping means 7 have been slipped on said flexible portion(s) 2 are supported by the same flexible portion(s) 2 formed into a loop, at least one end of said rigid portion 1 being susceptible of being disengaged from the flexible portion 2 or the portions 2 being disengageable from each other so that a free end of the latter can be introduced into the gripping means 7 of the containers. <IMAGE>
Patent GB-2159084-A (GB)
Title: Vapour phase soldering
Inventor: SPIRARELLI DONALD JOSEPH
IPC: B23K1/00
Filed: 1985-05-22
Abstract: In the continuous production soldering of circuit boards (27) and other products, a vessel (10) is provided for containing a heated saturated inert vapour into which the product (27) is introduced prior to solder application. One or more nozzles (24, 26) are disposed within the vessel for directing one or more streams of molten solder to the heated product. After solder application, the product is subjected to a solder levelling or debridging operation by passage past one or more nozzles (32, 34) which direct streams of vapour phase condensate (14) onto the product surfaces. Each of the operations is separately controllable and is substantially independent of the control of the other operations of the overall system. The circuit boards are supported in frames moved by chains. <IMAGE>
Patent GB-2163693-A (GB)
Title: A razor system
Inventor: MCGREADY ANGUS JOHN
IPC: B26B21/52
Filed: 1985-07-03
Abstract: A razor system comprises a handle (10 Fig. 2) to which a blade unit 15 can be connected by a releasable coupling, the razor handle being hollow and containing a dispenser 16 in which a plurality of blade units 15 are stored for attachment in turn to the handle when the blade unit, previously fitted in an operative position on the end of the handle, has been discarded. The releasable coupling (13, Fig. 2) is a pair of resilient claws (13a, Fig. 2) engageable by snap action in a pair of recesses in the blade unit for mounting the blade unit on the handle for pivoting movement about an axis parallel to the blade edge. To attach the handle to or detach it from a blade unit, it is moved perpendicularly to the face of the blade units which are slidable longitudinally into and out of the dispenser. <IMAGE>
Patent GB-2162389-A (GB)
Title: Electronic commutation for direct current electric motors
Inventor: PARKER LOUIS W
IPC: H02P6/20
Filed: 1985-08-16
Abstract: A brushless motor has interconnected stator coils (21-26) and gate controlled solid state rectifiers (61-76) which are responsive to forced commutation below in particular rpm and self- commutation above said rpm and which selectively conduct current into and out of the junctions of the coils in dependence upon which of said rectifiers is operative. This produces stator poles which are angularly displaced from the poles (20) of the rotor (36) and which shift in position as the rotor rotates. Trigger assemblies (101-108) are provided for controlling the energization of the various gate electrodes, each said trigger assembly comprising a pick-up coil (110) forming a portion of a frequency selective circuit whose resonance frequency varies in dependence on the position of a rotating magnetic element (109). A sine wave oscillator (100) is coupled to the frequency selective circuits, the oscillator being operative to produce either of two different output frequencies, and an electronic switch (222) responsive to the rotor speed selectively changes the output frequency of the oscillator. One of these frequencies induces trigger assembly operation at all rotor positions and advanced SCR trigger timing for reliable starting and very low speed operation. The other frequency retards SCR trigger timing for most efficient motor running at moderate and high speeds. <IMAGE>
Patent GB-2168632-A (GB)
Title: Cylinder block blank manufacture
Inventor: EBISAWA MASUO
IPC: B22D17/32
Filed: 1985-11-08
Abstract: A process for manufacturing a siamese-type cylinder block 2 comprises a cylinder block blank- making step in which a sleeve (3) made of a cast iron is encast in each of a plurality of cylinder barrels (11 to 14) of a cylinder block body (1) made of an aluminium alloy. A machining step of forming the inner peripheral surface of each sleeve of the cylinder block blank into a true circle follows. The process is characterized in that the blank-making step includes placing highly rigid sleeves each having a thickness set as large as 10% or more of the inner diameter thereof into an appropriate mould cavity and then pouring molten aluminium alloy under a pressure into the cavity. The sleeves may be pre- heated. A cylinder block blank resulting from the encasting of sleeves at ambient temperature is subjected to a thermal treatment for reducing the casting strain in each cylinder barrel. <IMAGE>
Patent GB-2168029-A (GB)
Title: Alignment devices
Inventor: CARTWRIGHT ANTHONY GEORGE
IPC: F15B15/10
Filed: 1985-11-27
Abstract: An alignment device comprises an alignment unit 2 which aligns a tube 1 relative to an external hole. Unit 2 is coupled to an intermediate cage through a pair of mutually opposed bellows 4 and 5. The cage in turn is coupled to an outer fixed cage 6 through a pair of mutually opposed bellows 7 and 8 lying along a line orthogonal to bellows 4 and 5. Differential pressure between the bellows of a pair causes movement of unit 2 in one or other of respective orthogonal directions. Unit 2 includes four pressure chambers located around tube 1 and coupled to the respective bellows. Obstruction of one or more chambers caused by lateral misalignment of tube 1 relative to the external hole causes back pressure in the obstructed chambers which is coupled to the bellows and thus causes movement of unit 2 in a direction to reduce the back pressure. <IMAGE>
Patent GB-2191393-A (GB)
Title: Garment hanger
Inventor: CONRAN SEBASTIAN
IPC: A47G25/14
Filed: 1986-04-15
Abstract: A retail garment display hanger is essentially formed by two portions, namely a hook portion 2 and a garment hanging portion 3. The hook portion may be formed of plastics material and include a hook portion integrally moulded therewith; or alternatively it may be formed of plastics material and have a hook proper attached to it. The hook portion is customised. The garment hanging portion is moulded from plastics materials and has a configuration which is generally conventional for a specific garment. The hook portion and the garment hanging portion are adapted to be secured together e.g. by connectors 10, welding or adhesive. By this means garment display hangers can be supplied as a kit of parts for fitting out a particular retail store with hangers for a variety of different garments, in which case the hook portions are associated with the particular retail store and the hanging portions are selected depending upon the particular garment. <IMAGE>
Patent GB-2189158-A (GB)
Title: Board game
Inventor: STANTON ERNEST JAMES
IPC: A63F3/02
Filed: 1986-04-16
Abstract: A board game comprises a rotationally symmetrical, polygonal playing surface divided into a multiplicity of play zones, at least two identical sets of markers, each marker within a set having at least two different marked faces, the different faces of each marker having visual indications of a permitted number of moves which number is the same for each marked face, and a set of rules defining a permitted interplay between markers. In one form of the board game, the playing surface is hexagonal, players play from the sides of the hexagon and the rules permit capture of the markers of opposing players. <IMAGE>
Patent GB-2189608-A (GB)
Title: Flow monitoring apparatus
Inventor: STORM COLIN WILLIAM
IPC: G01P13/00
Filed: 1986-04-23
Abstract: The apparatus comprises a tubular member (2) through which material such as coal (100) flows, and a loop member in the form of a chain (3) mounted with part extending lengthwise through the tubular member (2) in the direction of material flow therein, the remainder of the chain (3) being outside the tubular member (2). Monitoring means (6) responsive to lengthwise movement of the chain is coupled to the chain (3), and as material (100) flows through the tubular member (2) it, "picks up" the chain (3) which thus moves therewith, this movement causing corresponding response of the monitoring means (6) proportional to the flow rate. The apparatus can be used for flow rate control or simply to indicate whether the material is flowing. <IMAGE>
Patent GB-2195198-A (GB)
Title: Erasing head
Inventor: LEWIS JOHN ALFRED
IPC: G11B5/024
Filed: 1986-09-17
Abstract: An erasing head for magnetically erasing a magnetic tape 18 movable in the direction of the arrow shown comprises a core 10 having a coil 12 for generating a DC magnetic field which passes perpendicularly through 16 the tape 18 in the direction of the arrows I and II across the gaps A and B. A keeper 20 completes the magnetic circuit. The field strength in gap B is of a reduced level compared with that in gap A and selected to bring the magnetisation of the tape back to the origin of the hysteresis loop. In a second embodiment (Fig. 3, not shown) the face of pole pieces 14, 16 are curved. In a third embodiment (Fig. 4, not shown) both the core and keeper are E Shaped. The coil 12 may be replaced by a permanent magnet. <IMAGE>
Patent GB-2183564-A (GB)
Title: A shopping trolley
Inventor: LE MARCHAND ALAIN
IPC: B62B3/14
Filed: 1986-11-20
Abstract: A trolley for use in particular by customers of self-service stores has a transverse partition 12 mounted within the trolley basket 2 and joined to the side walls of the basket by means of hinge-type articulation members 15 so as to delimit with the front wall of the basket a suitably dimensioned locker 11 compartment with a lid 17 hinged on the top edge of the partition. The edge of the lid which is remote from the partition is provided with a latch 25 for securing the lid to the front wall of the trolley basket in order to effect temporary closure of the locker compartment. It is intended that customers should lock their shopping etc bags in the locker whilst shopping, the locker being opened at the check out area, with the aim of preventing shoplifting and also to protect the customers personal possessions. <IMAGE>
Patent GB-2198175-A (GB)
Title: Protective screen
Inventor: DUTTON PAUL
IPC: E06B9/01
Filed: 1986-12-03
Abstract: A screen to prevent access to windows and doors and to prevent vandalism comprises one or more panels (10) mounted in a rectangular frame (11 to 14). To assemble the screen on site, first and second channel-shaped members (11, 12) are aligned with facing channels and secured to a surrounding wall. The panels or panels (10) are slid into position therebetween with edge margins retained in the channels either before or after the fixing of one side member (13). To retain the panels (10) the other side member (14) is positioned, one end being pivotally supported within the first member (11) at (16) and the other end secured inside the second member (12) at (21). <IMAGE>
Patent GB-2201627-A (GB)
Title: Detachable handles
Inventor: KELLY BERNARD PATRICK
IPC: B25G3/30
Filed: 1987-02-03
Abstract: An implement has an operating element such as a spade blade (2) which can be detachably coupled with a handle (1) by means, for example, of an internally threaded sleeve (11) which couples with an externally threaded portion (6) on the blade (2). A locating member (7) on the blade (2) engages with a recess (1) on the handle to locate it correctly and prevent twisting. <IMAGE>
Patent GB-2202792-A (GB)
Title: Wire binding element
Inventor: JONES LEONARD WILLIAM NORTON
IPC: B42B5/10
Filed: 1987-04-02
Abstract: A binding element for perforated sheets of the type comprising a length of wire bent so as to form curved prongs on which the sheets may be impaled, the wire being in the shape of a flat comb, the prongs of which are closed at their tips and opened at their bases or roots which are connected to their neighbours by aligned lengths of wire forming the stock or the spine of the comb, the strip being designed to be converted to a slotted tube by suitable bending of the prongs. In accordance with the invention the concave surface with part of each prong which is midway between its tip and root is formed with an indentation, which indentation assists the closing of the binding element very effectively and without any visible sign.
Patent GB-2204962-A (GB)
Title: Stereoscopic observation of tubular channels
Inventor: BERRY YALE JOEL
IPC: G02B27/22
Filed: 1987-05-22
Abstract: A multi-prism 1, 2, 1', 2' optical viewing instrument is provided for enabling stereoscopic viewing down tubular and/or deep body channels or cavities C, such as the ear canal, nose and vagina, too narrow to permit viewing with both eyes LE, RE and while providing illumination L down the channel or cavity without obstruction of the field of view. N identifies the nose. <IMAGE>
Patent GB-2193551-A (GB)
Title: Guard
Inventor: NORTON GORDON WILLIAM
IPC: F16P3/02
Filed: 1987-08-06
Abstract: A guard for a vertically extending tool (6) adapted to operate on a workpiece (7) supported on a surface (8), the guard comprising, guard means (5) for location adjacent the vertically extending tool to guard it, means (27, 28-Fig. 2) for raising and lowering the guard means (5), a foot (23) for contacting the workpiece and movably mounted at the lower end of the guard means, and a sensor (16, 17, 25) responsive to movement of the foot (23) when it contacts a workpiece (7) as the guard means (5) descends and arranged to act on the raising and lowering means to halt downward movement of the guard means. <IMAGE>
Patent GB-2210744-A (GB)
Title: D C offset voltage nulling circuit
Inventor: PEPPER STEWART JOHN ANDREW
IPC: H03F1/30
Filed: 1987-10-05
Abstract: A first feedback loop of the circuit includes a sample/hold circuit C1A2 connected by a switch S2 across an amplifier A1 to which the signal to be nulled is applied as an input. The input signal is periodically disconnected and the offset voltage at the amplifier is sampled, by opening S1 and closing S2 and S3 and applied as a correction voltage, and held when the signal is reconnected. Thus, offsets due to the signal line or lines, the amplifier and the sample/hold are all nulled. A second feedback loop, R3, provides no D C feedback during the sampling interval because S1 is open. R3 may be replaced by a permanently connected capacitor (Fig 2). <IMAGE>