baber/WOPTO huggingface dataset:
Patent GB-2071963-A (GB)
Title: Electronic toner ringer
IPC: H04M1/26
Filed: 1980-08-01
Abstract: An electronic tone ringer responds to ringing signals on a telephone line while being unresponsive to dialing pulses or other signals on the line. Powered directly from the telephone line the ringer uses current sources to provide a high impedance to the ringer circuitry and an insensitivity to line voltage variations so that reliable operation of the ringer is maintained on long loops and with multiple ringers terminated on the line. A multitone signal for activating an electroacoustic transducer (300) is provided by frequency modulating a single oscillator (500) within the tone ringer. Frequency stability of the oscillator is insured by the use of interrelated constant current sources that provide an insensitivity to supply voltage variations over a wide range. Two of the current sources determine the duty cycle by controlling the charge and discharge current of a capacitor in the circuit. A third current source determines the voltage swing on the capacitor. By varying the current output from the third current source, the generator circuit provides a variable frequency signal.
Patent GB-2098013-A (GB)
Title: Improvements in or relating to the starting of discharge lamps
IPC: H05B41/04
Filed: 1981-05-02
Abstract: In a discharge lamp circuit including a low loss ballast arrangement (6) and a starter switch (9) connected across the lamp (1) the inrush current passed during starting is dependent on the random point in the AC supply at which starting is initiated. It is proposed to insert in the circuit a resistance (8) sufficient to reduce the highest possible inrush current sufficiently to prevent damage to the lamp. To prevent this giving excessive losses during running the resistance (8) is connected in series with the starter switch (9) and is therefore not effective when the lamp has started. It may be incorporated in the housing of the switch (9). <IMAGE>
Patent GB-2092454-A (GB)
Title: Sliding-block puzzle
IPC: A63F9/00
Filed: 1981-05-06
Abstract: A puzzle of the "Rubik-cube" type comprises guides 17 disposed along three great circles of a spherical body 3, and blocks 1 mounted on the guides. One of the blocks is fixed in place. Figure 5 shows the known guide arrangement. The external shape of the puzzle may be spherical instead of cubical. <IMAGE>
Patent GB-2077940-A (GB)
Title: Inspecting walls of bores, cadoscopes
IPC: G02B23/24
Filed: 1981-05-22
Abstract: Inspection of the wall structure of an article made up of layers of fibre- reinforced plastics material, e.g. to ensure correct layer thicknesses, is made difficult because the structure at any free edges of the article may not correspond to that elsewhere while, if the wall is cut, the article may not then be usable and, in any case, the cutting may obscure the structure. Herein there is proposed making a small hole in the wall and using a fibre-optic viewer to inspect the side of the hole. Proposed apparatus for making the inspection comprises a support member (1) for accurate positioning on the wall, a movable assembly (6, 15) mounted for sliding movement towards and away from support member (1) on columns (4) and carrying a sideways-looking fibre- optic viewer of which the shaft (18) extends through a hole in the support member for entry into the hole to be inspected there being a depth micrometer (8) coupled between the support member and movable assembly for adjusting the depth of entry of the viewer shaft. The method and apparatus can also be used for inspecting articles other than articles made of fibre-reinforced plastics material. <IMAGE>
Patent GB-2098891-A (GB)
Title: Clamping work tables
IPC: B25H1/10
Filed: 1981-05-26
Abstract: A workpiece 9 is held against a table 2 by clamping members 7 each provided with a clamping jaw 73 moveable into engagement with the workpiece by a horizontally moveable member 6 having a wedge- shaped projection 61 engaging in a wedge shaped cavity 71 in the clamping member. Further clamping members 74 prevent sideways displacement or vibration of the workpiece. <IMAGE>
Patent GB-2078065-A (GB)
Title: Polling pattern generator for CATV system
IPC: H04N7/173
Filed: 1981-05-29
Abstract: A polling pattern generator 34 is intended for use in a CATV system which includes a plurality of terminal units 28, each having an associated passive data monitor 32. The polling pattern generator 34 is responsive to signals from a centre (not shown) and periodically generates polling pattern signals, each of which has a specific address code for designating the corresponding terminal unit 28, and a command code for requesting an answer from the addressed terminal unit 28. The passive data monitor 32 sets the address code in the addressed terminal unit 28. The passive data monitor 32 also compares an up data signal which has been sent by the terminal unit 28 in response to the aforesaid command code with the answer requested by that command code, to determine whether or not an operational state of the terminal unit 28 is acceptable. <IMAGE>
Patent GB-2102684-A (GB)
Title: Apparatus for playing a game
Inventor: WRIGHT DONALD
IPC: A63F3/00
Filed: 1981-06-10
Abstract: The apparatus comprises dice each having a plurality of faces each bearing a representation of something which could be seen on a journey and a container (C) having surface (S) provided with a plurality of rows of score-indicating receiving portions (H) for receiving at least some of the dice in respective said portions. The game is played by throwing at least some of the dice so that they land with particular faces, at random, uppermost, inserting these pieces in respective ones of the portions (H), with the particular faces uppermost, and, when that which is represented on the uppermost face of any of these pieces is seen while on a journey, removing the particular piece to reveal the score with a view to removing as many of these pieces as possible and/or achieving at least one empty row of the said receiving portions. At least one more die than there are receiving portions is provided. <IMAGE>
Patent GB-2074295-A (GB)
Title: Automative Watering Devices for Greenhouse
IPC: A01G25/16
Filed: 1981-04-08
Abstract: Water is supplied to an auxiliary float valve 3 in contact with a water level in an evaporation vessel 2 holding an absorbent element 1. When the water level in vessel 2 is lost via element 1 through the effects of evaporation the float valve 3 opens to pass water down into the main water vessel 4. This action tops up a maintained water level 16 controlling main float valve 8 until a water level 17 causes the syphon 10 to discharge the collected water to waste through the outlet 14. This in turn lowers the float 15 opening main float valve 8 to discharge water from the inlet 12 through a distribution pipe 9 to an outlet connected to a sprinkler line or other devices 13. As the sprinklers operate, outlets 6 and 7 on the distribution pipe 9 replenish water levels in evaporation vessel 2 and main water vessel 4 at a restricted flow until the respective float valves 3 and 8 are closed and thus the discharge to the spraying appliances. The time taken to refill the main water vessel 4 is the duration of the discharge to the spraying appliances. <IMAGE>
Patent GB-2083858-A (GB)
Title: Improvements in or relating to security devices
IPC: E05B45/08
Filed: 1981-09-18
Abstract: The keeper (2) of a mortice lock has a pressure-sensitive electrical alarm switch (8) mounted on a side face that is disposed frontmost in the direction of door opening movement. The keeper is fixed to a striker plate (4) that has transversely elongated screw holes (6) to secure the keeper to the door jamb. Because of the elongation of the holes, when pressure is applied to the door to try to force it open while the lock bolt is seated in the keeper, the striker plate and keeper can move sufficiently to bring the switch against a side face of the mortice in the door jamb and so cause the alarm switch to operate. <IMAGE>
Patent GB-2106575-A (GB)
Title: Windows and doors
Inventor: HUANG CHING-PIAO
IPC: E06B3/44
Filed: 1981-09-22
Abstract: A window or door has a framework (10, 11, 12, 13) housing three or more windows (30, 40, 50) at least two of which (30, 40) are movable upwardly or downwardly so as to vary the overall space openable. At least a portion of the overall space may be closed by a gauze (60) for preventing entry of insects. <IMAGE>
Patent GB-2087933-A (GB)
Title: Washing machine drive system
IPC: D06F37/36
Filed: 1981-11-12
Abstract: The washing machine drive system comprises a pole changeable alternating current motor (7) which drives a drum (3) of the drum-type washing machine (1) through an induction coupling (15) and a rotation speed-reducing belt transmission (5). A programme control system (11) switches on the motor (7) with low pole number (for example 2) in spin- drying operation and with high pole number (for example 12) in washing operation. The drive-output rotation speed of the induction coupling (15) is kept both in spin-drying operation and in washing operation at a rotation speed value predetermined by the programme control system (11), by a rotation speed regulator circuit (17). The rotation speed regulator circuit (17) gives off direct current pulses to the induction coupling (15), the pulse rate or pulse width of which is variable in dependence upon the actual rotation speed of the induction coupling (15). <IMAGE>
Patent GB-2115657-A (GB)
Title: Method of storing characters and photo-typsetting apparatus
Inventor: FUKUDA SHINICHIRO
IPC: B41B19/01
Filed: 1982-02-17
Abstract: Method and apparatus for storing and photo-typesetting characters stored in the form of data of contours wherein, unlike the prior art, curved contours are not approximated by straight lines, but are approximated by curves, that is, the data is stored to obtain a curve which is approximated to the curve of the contour approximated to contours of characters being reproduced based upon the stored data. End points and one or more reference points are stored for each segment according to the degree of the approximating curve. Each point on the curve is calculated by interpolation and the co-ordinates of the point compared with the position of the scanning beam of a laser or a CRT, the beam being turned on at each co-incidence. <IMAGE>
Patent GB-2094269-A (GB)
Title: Apparatus for dispensing beer or other liquid from a container
IPC: B67D1/12
Filed: 1982-03-02
Abstract: An apparatus for dispensing beer or other liquid from a container through a dispensing outlet (7) is of the type comprising an electrically driven pump (1) having an inlet (2) arranged to be connected to a container of the liquid, an outlet (3) connected to a closure valve at the dispensing outlet (7) and a non-return valve (4) for maintaining pressure in the liquid generated by the pump (7) when the pump (1) is stopped and the closure valve (7) is closed. Such apparatus is provided with a pressure sensitive means (5, 12) which is actuated in dependence upon the pressure of the liquid between the non- return valve (4) and the closure valve (7) and a pump control circuit to which the pressure sensitive means (5, 12) is connected and which includes a timing device (16). The pressure sensitive means (5, 12) and the pump control circuit are arranged so that the pump (1) and the timing device (16) are started when the pressure of the liquid between the non-return valve (4) and the closure valve (7) falls below a lower predetermined pressure, the timing device (16) stopping the pump (1) if the pressure does not rise above the lower predetermined pressure within a time determined by the timing device (16), and the pressure sensitive means (5, 12) also being arranged to stop the pump (1) upon the rise of the pressure above a higher predetermined pressure which occurs when the closure valve is closed while the pump is running. This apparatus avoids the use of a flow switch in the liquid flow downstream of the pump (1) and yet prevents damage to the pump (1) in the event of the exhaustion of the supply of liquid to it or in the event of it becoming gas locked. <IMAGE>
Patent GB-2095348-A (GB)
Title: Sealing rings
IPC: F16J15/3268
Filed: 1982-03-10
Abstract: A valve-stem seal has a dynamic sealing lip 29 engaging the stem and a static sealing zone 28 which is pressed over the valve-stem guide 34. The zone 28 is reinforced externally by a ring 31 having openings 33 which are filled by the elastomeric material of the sealing zone 28. The peripheral spacing between the circular or oval openings 33 is the same as or smaller than the peripheral width of the openings so that when the seal is pushed onto the guide 34 surplus material is forced out through the openings to prevent undue resistance to fitting. The area of the openings is preferably approximately equal to the area of remaining material. The invention is also applicable to radial shaft seals and sliding-ring seals which fit into housings and have internal reinforcing rings (Figs 1,2, not shown). <IMAGE>
Patent GB-2099306-A (GB)
Title: Drainage Sponge
IPC: A61F13/12
Filed: 1982-03-25
Abstract: A drainage sponge for use in tracheostomy which consists of a sheet of absorbent material folded into a multi-ply configuration. The folded sheet has a first slit, extending from one of its side edges inwardly towards the central portion of the folded sheet with its inner end spaced from the other side edges of the folded sheet, and a second slit crossing the first slit at a location spaced slightly from the inner end of the first slit, the ends of the second slit being spaced from the side edges of the folded sheet. <IMAGE>
Patent GB-2103167-A (GB)
Title: Unmanned remotely piloted aircraft
Inventor: KERR JOHN P
IPC: B64C27/00
Filed: 1982-03-26
Abstract: An unmanned remotely piloted aircraft has a pair of rigid counter rotating propellers 17 and 18 positioned substantially at or slightly below, the height of the centre of mass of the aircraft. This results in the production of a sufficiently large control moment to permit the use of a tether line 35 for landing the aircraft. An upper spheroidal portion 1 houses an engine 4 and an annular fuel tank 6, the engine driving the propellors via a gearbox 19. A lower spheroidal portion 3 houses a pay load 12 of surveillance equipment, and flight control units 10. Landing gear 14 comprises a ring 15 connected to the portion 3 by shock-absorber struts 16. <IMAGE>
Patent GB-2097945-A (GB)
Title: Variable magnification photocopier
IPC: G03G15/041
Filed: 1982-04-21
Abstract: A variable magnification line-by- line photocopier employs a moving original in the form of a microfilm 11, a fixed focal length lens 14, fixed mirrors 15 and 18, movable mirrors 16 and 17 and photoconductive drum 19, mirrors 16 and 17 being movable simultaneously in a direction at right angles to the optical axis of the lens to change the length of the optical path (necessitated by movement of the lens along its optical axis to change the magnification). Lens 14 may be replaced by a lens 14' of different fixed focal length. <IMAGE>
Patent GB-2122621-A (GB)
Title: Enhanced immobilization of glucose isomerase
Inventor: TEAGUE JOHN RUSSELL
IPC: C12N11/14
Filed: 1982-06-25
Abstract: The immobilization of glucose isomerase onto a support matrix is enhanced by pretreating the support matrix with divalent magnesium ions. In one embodiment, the support matrix is an inorganic oxide impregnated with a polyamine which is subsequently cross-linked with an excess of a bifunctional reagent so as to furnish a plurality of pendant function groups, and the wash solution is magnesium sulfate.
Patent GB-2124477-A (GB)
Title: Windscreen wiper
Inventor: KNIBBS GEORGE
IPC: B60S1/52
Filed: 1982-07-31
Abstract: A windscreen wiper includes a flexible wiping member 12 and two bearing members 22 on each side of the wiping member. The bearing members may be brushes or scrapers. The wiper may be provided with passages therethrough for discharge of cleaning fluid onto the windscreen. <IMAGE>
Patent GB-2107337-A (GB)
Title: Semi-metallic friction material
Inventor: OGIWARA OSAO
IPC: C09K3/14
Filed: 1982-08-24
Abstract: A friction material is characterised in that, in a semi- metallic friction material composition substantially consisting of iron metal and/or iron alloy and thermosetting resin binder, zinc dust and/or a zinc compound is blended in a range of 0.5-15 weight percent in the composition. The binder may be a phenolic, epoxy or melamine resin. Uses:- Linings or friction pads for drum or disc brakes, respectively.
Patent GB-2119950-A (GB)
Title: Improvements in or relating to holograms
Inventor: BAZARGAN KAVEH
IPC: G03H1/24
Filed: 1983-02-08
Abstract: This invention is predicated upon a particular set of components which may be grouped according to a number of permutations each of which has a specific application. 
<??>A hologram viewing apparatus, an integral direct viewing hologram device and an article useful in the manufacture of hologram devices are provided by this invention. 
<??>The hologram viewing apparatus comprises a housing (20) enclosing a light source (21) which illuminates a screen located in or on a wall of the housing (20), the screen consisting of at least a plane grating (28). 
<??>The integral direct viewing hologram device comprises a venetian blind film (10) having a hologram (11) embossed on or bonded onto one surface and a plane grating (28) embossed or bonded onto the other surface. The device can be direct viewed in white light and a multi-coloured image can be produced by the provision of a plurality of holograms (11, 12) which are made using different coloured light. 
<??>The article useful in the manufacture of hologram devices comprises a venetian blind film embossed on one side with a plane grating.
Patent GB-2116217-A (GB)
Title: Rotary knitted pouch heel
Inventor: ANDRO JAN
IPC: D04B1/26
Filed: 1983-02-09
Abstract: A rotary knitted pouch heel comprises a series of successive incomplete courses (4.1 to 4.N) between adjoining terminal courses (1 and 2) of leg and foot parts. Each incomplete course has at each end at least one tucking loop (5.1 to 5.N and 6.1 to 6.N). In one embodiment as shown the series of incomplete courses are shortened from both the leg and foot parts to a transverse axis of symmetry (10) where a complete course (3) is provided to which the tucking loops are linked on. In another embodiment the series of incomplete courses are lengthened from both the leg and foot parts to a transverse axis of symmetry and the tucking loops are linked on to the adjoining terminal sources of the leg and foot parts. In each case the course to which the tucking loops are linked on is longer than any incomplete course. Such a pouch may be formed in other knitwork pieces. <IMAGE>
Patent GB-2136482-A (GB)
Title: Offshore tower structure
Inventor: MEEK JAN
IPC: E02B17/02
Filed: 1983-03-18
Abstract: An offshore tower structure comprises a central column (11) for supporting a platform (13) above the level of the sea (14). The column (11) extends upwardly from a base frame (10) and is braced by three support legs (12). The entire structure is rigid or stiff and is fixed directly to the sea bed (15) by means of piles driven through sleeves (18) located at each corner (16) of the base frame (10). <IMAGE>
Patent GB-2117946-A (GB)
Title: Method and apparatus for magnetic storage and retrieval of information
Inventor: ALLEN DAVID M
IPC: G11B27/10
Filed: 1983-03-28
Abstract: An arrangement for the physical representation of logical information magnetically recorded upon a movable magnetic storage disc is provided which eliminates any need for "hard indexing", increases the amount of useful data that can be stored on a given disk, decreases the latency time before a data writing operation may be commenced on a disk type medium, provides a uniform format for storage of data and related control information on the disk. The first part of an annular track of the disk is occupied by recorded control information and the second part, extending over a major part of the track length, is the data field. No hard indexing feature is required.
Patent GB-2131470-A (GB)
Title: Blowout preventer
Inventor: JONES MARVIN RICHARD
IPC: E21B29/08
Filed: 1983-04-29
Abstract: There is disclosed a blowout preventer having rams 26A, 26B with cutting edges for shearing a pipe 24 within the vertical bore 22 through the preventer housing which rams 26A, 26B carry means 53 for gripping opposite sides of the pipe above the cutting edges of the rams, as the rams move toward one another to shear the pipe, and lifting the upper sheared end of the gripped pipe out of the path of means for sealing 34 between the inner ends of the rams, as the rams continue to move toward one another. <IMAGE>
Patent GB-2144210-A (GB)
Title: Sun heater apparatus
Inventor: ECONOMOU KYRIACOS MICHAEL
IPC: F24D17/00
Filed: 1983-07-29
Abstract: A water heating system using solar energy, comprising a cold water storage tank (A), a boiler (C1) for heating water fed from the tank (A) through the boiler, a frame (B2) containing part of a continuous pipe (X) filled with oil or alcohol, that part of the pipe (X) within the frame being exposed to solar energy, the pipe passing through the boiler (C1) for the transference of heat from the oil or alcohol to the water within the boiler. The part of the pipe (X) within the boiler (C1) may be in the form of a funnel (Y) or a spiral. <IMAGE>
Patent GB-2144163-A (GB)
Title: Process for the production of insulant panels
Inventor: IGGLESDEN GRAHAM ARTHUR
IPC: E04C2/38
Filed: 1983-07-30
Abstract: Timber for a plurality of frames (61), and an end sheet (62), are assembled to form a box-like structure, which is filled with foam (65). When hardened, the foam and, if necessary, the timber, is sliced to form a plurality of foam sheets (12), each framed by a timber frame (11), and facing sheets (13) are attached to the frames to cover both sides of the hardened foam sheets. These insulant panels have particular utility as fire-check doors. <IMAGE>
Patent GB-2131338-A (GB)
Title: Surgical stapler apparatus with flexible shaft
Inventor: NOILES DOUGLAS G
IPC: A61B17/11
Filed: 1983-05-11
Abstract: A surgical stapler including a stapling assembly, an actuator assembly remote from the stapling assembly, and a longitudinal shaft assembly having a longitudinally flexible section for connecting the actuator assembly to the stapling assembly and for transmitting the forces and motions required to operate the stapling assembly from the actuator assembly to the stapling assembly.
Patent GB-2134943-A (GB)
Title: Cavity wall tie
Inventor: WALKER RICHARD GEORGE
IPC: E04B1/41
Filed: 1984-01-23
Abstract: A wall tie (10) for a timber frame cavity wall (19, 20) which is made as a generally flat rectangular stainless steel strip having first and second stiffening formations (12, 15) in the form of pressed ribs, separated by an unstiffened transverse junction (16). The tie (10) can be bent about the junction (16), to bring abutment faces (17, 18) of the stiffening formations (12, 15) into abutment and limit the angle through which the tie (10) is bent. In this condition, the tie is strong both in compression and tension, while remaining flexible enough to permit differential movement of the inner and outer leaves (19, 20) of the wall. Chevron mortar keying formations (27) are formed on the other end portion (23) of the tie. A method and cavity wall construction are also described. <IMAGE>