baber/WOPTO huggingface dataset:
Patent GB-2028110-A (GB)
Title: Improvements in mobile vacuum cleaners
IPC: A47L9/00
Filed: 1978-08-15
Abstract: The invention relates to vacuum cleaners which have a housing 1 which can be moved across the floor by means of wheels 11, in which housing there are provided a fan 10 and a filter bag for receiving the dust collected, and which housing has an opening for connection of a suction hose. It is an object of the invention to provide a vacuum cleaner which is very easy to assemble and can be cheaply manufactured, but in which the components of an assembled cleaner remain easily accessible. The housing of the cleaner has a bottom opening through which the fan and wheel mountings are inserted into the housing 1 and a base plate 12 closes the opening. The suction hose may incorporate an electrical conductor which extends from contact pins which are received in an electrical socket in the housing to a socket on a handle of the hose. An electrically motor- driven brush can be mounted on the handle and connected-up to the conductor in the hose. <IMAGE>
Patent GB-2030877-A (GB)
Title: Target (e.g. dart) board combined with score indicating system
IPC: F41J5/048
Filed: 1978-09-12
Abstract: A target, e.g. a dart board, comprises target sections 22 each comprising two electrically conductive layers spaced apart by a non-conductive layer. When a dart penetrates these three layers of a target section, it causes a current to flow between the upper and lower layers 23 and 24 of the target section, such current, via processing means, actuating a score display system. <IMAGE>
Patent GB-2030100-A (GB)
Title: Drive frame for a scraper- chain conveyor
IPC: B65G19/18
Filed: 1978-09-23
Abstract: This invention relates to a drive frame, suitable for a scraper-chain conveyor, which comprises two side plates 1 and 2, a spacer member 3 secured to one of the side plates, and two deck plates 4 and 5 and is characterised in that the drive frame is substantially symmetrical about a plane P containing the rotary axis X of a sprocket assembly to be carried by the drive frame. This enables the drive assembly to be attached to either side of the frame by simply inverting the frame as necessary. <IMAGE>
Patent GB-2004439-A (GB)
Title: Improved hearing aids
IPC: G02C11/06
Filed: 1978-10-05
Abstract: This invention concerns a hearing aid of the type comprising a pair of spectacles with a microphone and means for transmitting sounds picked up by the microphone to the ears of the wearer. In accordance with the invention, the microphone is directed forwards and is located on the nose piece of the frame or on the portions of the side pieces nearest the front. Electrical power supply from a battery, powering the hearing aid can be interrupted by a microswitch when the spectacle frame is folded.
Patent GB-2013566-A (GB)
Title: Device for Aiding the Preparation of Graphic Artwork
IPC: B43L5/02
Filed: 1978-10-27
Abstract: A device for supporting and guiding a master sheet, e.g. a transfer sheet, in relation to an item of artwork comprises a carrier in the form of a rectangular frame having means for locating a master sheet on the frame, an intermediate guide which cooperates with the carrier to restrain the carrier to reciprocate in its own plane relatively to the intermediate guide solely in a first direction, which is parallel to two sides of the carrier, and means for supporting the intermediate guide upon a drawing board while restraining the intermediate guide to reciprocate parallel to the plane of the carrier relatively to the drawing board solely in a second direction perpendicular to the first direction.
Patent GB-2009963-A (GB)
Title: A time switch system having a modular construction
IPC: G05B19/10
Filed: 1978-11-03
Abstract: A time switch programming system of modular construction comprises a plurality of modules each of which is independently operable and programmable to give a respective switching programme, and the modules are functionally connectable by electric or electronic means only. The connections which can be established between the modules are logical linkages, and each module has an independent control means. There is thus no mechanical driving connection between modules. Figure 4 shows modules 19 having cable connections 37 and levers 35 for selecting the desired logic connections between modules. These modules are respectively provided with switching discs in the form of a one hour disc 39, a twenty-four hour disc 40, and a one week disc 41. A further module 53 provides a temperature control function. <IMAGE>
Patent GB-2034471-A (GB)
Title: Sonar berthing aid
IPC: G01S15/87
Filed: 1978-11-14
Abstract: In a berthing aid underwater sonar distance detecting units TB and TS mounted on a jetty J adjacent a berthing line BL determine the bow and stern "distances off" DB and DS of a ship S during a berthing procedure, and an intermediate sonar unit Ta determines an intermediate distance off A. Signal processing means which receive the signals from the units check the validity of the signals and determine the distances off DB and DS when the signals are valid. Signal validity is determined by checking that the equation a DIVIDED b (DS-DB) = A-DB is satisfied, a and b being the distances shown in Figure 3. <IMAGE>
Patent GB-2010065-A (GB)
Title: Rodent control devices and methods
IPC: A01M25/00
Filed: 1978-12-07
Abstract: Apparatus for location in places where foodstuffs are or may be stored takes the form of elongated tubes 100 of shapes and sizes so that mice can go through them. Cartridges 104 carrying a rodenticide e.g. in pad 107 are placed at intervals along the tubes so that mice traversing the tubes contact the rodenticide and become affected by it. A particular feature of the invention is that the rodenticide is provided on raised parts of the cartridges which the mice have to stretch over, so making maximum contact with the rodenticide. <IMAGE>
Patent GB-2050844-A (GB)
Title: Stretcher
IPC: A61G1/01
Filed: 1978-12-28
Abstract: A stretcher comprising a supporting sheet (1) and inflatable compartment or compartments (2), which may be attached to or separate from the sheet, rolled around a shaft (4) having a freely rotatably wheel (5) at each end. On inflation of compartment or compartments (2), the stretcher unrolls and will raise a patient and extend itself beneath the patient. Longitudinal carrying members and transverse stretching members can then be fitted in position for lifting and carrying off the patient. <IMAGE>
Patent GB-2013559-A (GB)
Title: Process for preparing cellulose triacetate films
IPC: B29C48/08
Filed: 1978-12-28
Abstract: Cellulose triacetate film is prepared from a dope using a mixed solvent of methylene chloride and a poor solvent for cellulose triacetate, the mixed solvent containing 7 to 30% by weight of the poor solvent and the cast layer is heated to maintain a temperature from 30 to 42 DEG C for at least 15 seconds within 3 minutes from casting.
Patent GB-2015923-A (GB)
Title: Manufacturing Tanks and other Hollow Articles
IPC: B29C53/60
Filed: 1979-03-16
Abstract: In the manufacture of a tank (32) there is made a former (28) to which coating material is applied. The coating material which may be glass reinforced plastic, sets to form a plastics material. The former is then dismantled, collapsed or otherwise altered in shape and is removed through a hole in the tank. The former may be hollow and made of a wax-like material that melts when heated and runs from the tank. Alternatively the former comprises a bag or sack of flexible, impermeable material which is filled with gas under pressure so as to render it relatively rigid for application thereto of the coating material, after which the bag is deflated and removed through a hole in the formed tank. <IMAGE>
Patent GB-2045162-A (GB)
Title: Improvements in or relating to protective materials for pipes or the like
IPC: F16L57/06
Filed: 1979-03-28
Abstract: The invention provides a protective wrap for a pipe comprising an outer layer of puncture resistent plastic material such as polyethelene, and a relatively thick inner cushioning layer of flexible material. In use the inner layer is adapted adhesively to engage the pipe surface.
Patent GB-2025178-A (GB)
Title: Mixing and bandswitching in a multi-band tuner system
IPC: H03J5/24
Filed: 1979-06-19
Abstract: To perform mixing and bandswitching in a multi-band tuner, bandswitching takes place at the IF frequency such that diodes 10, 12, preferably of the hot carrier or Schottky type, can be used to perform both mixing and bandswitching functions. The tuner has first and second oscillation signals for tuning within the UHF and VHF bands, respectively. A first diode 10, shiftable between non-conducting and conducting states, is operably connected to receive and mix the first oscillation signal and the received VHF radio frequency signal. A second diode 12, shiftable between non-conducting and conducting states, is operably connected to receive and mix the second oscillation signal with the received UHF radio frequency's signal. The diodes are conditioned, in accordance with the receipt of bandswitching signals, to render a selected one thereof conducting, while the other diode is maintained in its non-conducting state. The diode outputs are connected through a bandpass filter 40-52, including a relatively large capacitance bypass capacitor, to an amplifier circuit 54. <IMAGE>
Patent GB-2025328-A (GB)
Title: Method of Folding Synthetic Pulp Paper
IPC: B65H45/12
Filed: 1979-07-06
Abstract: Synthetic pulp paper comprising synthetic thermoplastic resin pulp fibers such as of polyethylene or polypropylene is processed to have a durable fold which may withstand repeated bending and abrasion by being pressed with a hot blade heated to a temperature above the softening or melting point of the thermoplastic resin and folding.
Patent GB-2033658-A (GB)
Title: Mosfet device
IPC: H01L29/94
Filed: 1979-10-09
Abstract: In a high power MOSFET having a plurality of closely packed polygonal sources 123 spaced from one another on one surface of a semiconductor body 121, and an elongated gate electrode 141 exposed in the spacing between the polygonal sources and cooperating with two channels, 161, 162 one for each adjacent source electrode, to control conduction from the source electrode through the channel and then to drain electrode 151 on the opposite surface of the semiconductor body, the conductive region adjacent the channel and between adjacent sources is relatively highly conductive in the section 128 of the channel adjacent to the surface containing the sources. The polygonal shaped source members are preferably hexagonal. Each polygonal region has a relatively deep central portion 122, 123 and a shallow outer shelf portion 124, 125. The shelf portion generally underlies an annular source region 126, 127. The deep central portion underlies an aluminium conductive electrode 150 and is sufficiently deep that it will not be fully penetrated by aluminium spiking. <IMAGE>
Patent GB-2064313-A (GB)
Title: Washing brush
IPC: A46B11/06
Filed: 1979-12-01
Abstract: A brush comprising a hollow body member (10) which serves as a reservoir for liquid detergent, a brush head (31) movably mounted on the body member (10), a flexible tube (16) for connection at its free end to a water tap to supply water to said brush head (31), and valve means (23) operatively connected with said brush head for regulating the flow of water from said tube to the head in response to movement of the latter, the body member having a detergent outlet 17 whereby detergent is supplied to water downstream of the valve means. Preferably, the brush head is slidably mounted on the body member so as to open said valve means in response to the application of the brush head to an article to be cleaned, and a mixing chamber for water and liquid detergent is arranged between the valve and the brush head. <IMAGE>
Patent GB-2039014-A (GB)
Title: A method and apparatus for uniformly drying a continuous web
IPC: D21F5/04
Filed: 1979-12-06
Abstract: In a method and apparatus for the uniform drying of a continuous web, such as a sheet of paper or paperboard, a newly formed web of paper of wet cellulosic fibers and the necessary additives is initially directed through a press section where excessive water is squeezed from the web to reduce its moisture content to about 50-80 percent, by weight, for subsequent passage through a dryer section wherein the moisture content is further reduced to between 3 and 15 percent, depending on the quality of the paper being processed. The moisture content profile of the nearly dry web of paper is constantly monitored adjacent the discharge end of the dryer section for dry streaks which occasionally occur in the web. Moisture is added to the web upstream from and longitudinally aligned with the dry streaks when the web is relatively wet and has a moisture content of at least 25 percent to eliminate further dry streaks.
Patent GB-2075278-A (GB)
Title: Cable sheath gripping devices
IPC: H01R33/46
Filed: 1980-05-02
Abstract: An electric lampholder has a sheath-gripping device 21 which relieves the conductors 17 from strain, including twisting, where they are connected to the terminals by means of a camming action. The holder also incorporates a snap-fit plastics cover 18 fitting over the terminals, providing full insulation where the component is assembled in a metal dome 13. <IMAGE>
Patent GB-2055198-A (GB)
Title: Detection of concealed materials
IPC: G01N23/203
Filed: 1980-06-27
Abstract: A hand portable probe 11 contains a radioactive source capsule 16 of low energy  gamma  rays which penetrate into an object against which the probe is positioned. Backscattered  gamma  radiation is detected by an annular scintillation crystal 14 light guide 17 and photomultipler 18 or by an annular array of semiconductor detectors (Figs. 4 & 5) positioned to be in contact with or very close to the surface under examination. Materials of low atomic number exhibit low photoelectric absorption and can be detected even when concealed behind steel. <IMAGE>
Patent GB-2065597-A (GB)
Title: Slewing crane
IPC: B66C23/12
Filed: 1980-12-11
Abstract: The crane has a jib (5) which is coupled to a revolving tower (3) so that the jib can be luffed about a horizontal axis (4). A lifting cable winch (6) is carried at the upper end of the revolving tower (3) and guide pulleys (11) for the cable (8) are carried by the tower (3) and positioned forwardly of the winch (6) in the direction of the jib (5). Further guide pulleys are provided at the head of the jib (5) for the cable (8) such that the load hook (15) describes a substantially horizontal path (17) when the jib (5) is luffed. The cable winch (6) is located such that the up-ended jib can be brought into a vertical or nearly vertical position. The crane has the advantage of small external dimensions and can therefore be set up at a short distance from external objects such as a ship's superstructure. <IMAGE>
Patent GB-2077396-A (GB)
Title: Thermostatic valve
IPC: F16K31/68
Filed: 1980-12-22
Abstract: A thermostatic valve (12) with an actuating element (19) has a cylindrical sliding sleeve (20) fixed on the actuating element (19) by means of a washer (24). The washer (24) is centred and axially fixed on the actuating element (19). Where the sliding sleeve (20) engages with the washer (24), the sliding sleeve (20) has two axially adjacent support shoulders protruding radially towards the actuating element (19), between which the washer (24) is received by its outer edge. The support shoulders of the sliding sleeve (20) are formed from stamped-out material portions (29, 30) which are formed out of the sliding sleeve wall (21) without swarf removal, by reshaping, and point radially inwards. These stamped-out material portions (29, 30) are preferably rolled-in annular shoulders extending all round (Figure 1). <IMAGE>
Patent GB-2069499-A (GB)
Title: Proteins which inhibit glucosyltransferase for use in prevention of dental caries
IPC: A61K8/64
Filed: 1981-01-16
Abstract: Acidic proteins having a molecular weight of from 30,000 to 60,000 inhibit the synthesis of insoluble glucans by glucosyltransferase and can be incorporated as the active ingredient in compositions, such as a toothpaste or dentifrice, for preventing dental caries. The proteins may be produced by culturing certain strains of microorganisms of the genera Arthrinium, Fusarium Gnomoniella, Moarophomina or Nodulisporium.
Patent GB-2070899-A (GB)
Title: Television display high voltage protection circuit
IPC: H04N3/20
Filed: 1981-02-10
Abstract: In an EHT generator (30) for a TV receiver including EHT transformer (31), protection circuit (38) comprises a comparator (70), driving a disabling circuit (71). A signal representative of ultor potential U applied to one input (emitter) of the comparator against a reference voltage applied to the other input terminal, disables the receiver when U is excessive. To avoid nuisance tripping at low beam current, a beam current signal is applied to the same input (emitter) so that at low current a higher threshold must be exceeded by U before disabling occurs. The beam current signal is applied via the output (collector) of an amplifier (68) which receives a beam current signal at its base. Amplifier (68) is so biased that over a substantial range of beam currents, the amplifier exhibits one gain characteristic, but has a different gain outside this range in order to activate the disabling circuit on overcurrent. <IMAGE>
Patent GB-2070024-A (GB)
Title: Paper-making size
IPC: D21H17/46
Filed: 1981-02-18
Abstract: A paper-making size comprises an aqueous liquid containing a cationic compound prepared by reacting (A) an organic high- molecular-weight compound composed of (a) a main-chain high- molecular-weight portion (a) having a molecular weight of 200 to 10,000 and (b) an epoxy group, said organic high-molecular weight compound containing the epoxy group in an amount of 0.05 to 2 moles per 100 g thereof, with (B) a primary or secondary amine to produce a resin having a basic group and a hydroxyl group, and then treating the resin to render it water-soluble or water- dispersible by neutralisation with an organic or inorganic acid or by quaternisation with an organic halogen compound. Suitable components (A) are epoxidation products of polybutadiene, polyisobutylene and petroleum resins. The size may also comprise an emulsion polymer prepared in the presence of the cationic compound as emulsifying agent.
Patent GB-2087736-A (GB)
Title: Word game
IPC: A63F3/04
Filed: 1981-05-15
Abstract: The apparatus comprises a base (10), a plurality of parallel equi-distantly spaced vertical guides (11) carried by the base and a plurality of tiles (13). 110 tiles bear a coloured letter of the alphabet on each side, 25 are black and 5 are white. A column of tiles can be assembled between each pair of adjacent guide members to form an interlocking crossword. <IMAGE>
Patent GB-2077371-A (GB)
Title: Rotating shaft seal
IPC: F16J15/32
Filed: 1981-06-04
Abstract: A sealing device comprising a diaphragm 18 (A-A'') carrying a lipped sealing ring 20 and having a skirt 18A, and a cap 26 which is rotatable with a shaft 10. The lips 22 and 24 of sealing ring 20 seal against hub portion 26B of cap 26 and serve to prevent leakage of lubricant and ingress of moisture and dirt, respectively. An annular packing 33 of a porous filtering material, which may be saturated with a lubricating oil, is arranged between the cap and the diaphragm to prevent the ingress of moisture and dirt to the vicinity of lip 24. Stop means, such as lugs 18A'', may be provided to prevent separation of the cap 26 from the diaphragm. In use with a shaft 10 the packing 33 is compressed and there exists an axial interference between it and the cap and diaphragm. One or both of the lips may seal against the radially extending wall of the cap. <IMAGE>
Patent GB-2083197-A (GB)
Title: Pulverized coat burner
IPC: C10J3/48
Filed: 1981-08-27
Abstract: The burner has a casing (1) having an outlet nozzle (4), an inner tube (5) for supplying oxidizing agent which is disposed centrally within the casing (1) and has a nozzle (6) surrounded by nozzle (4), and at least one helically coiled tubular element (7) for supplying pulverized coal arranged between the tube (5) and the casing (1), the or each element (7) passing through an internal partition (10) bridging the tube (5) and casing (1) and terminating tangentially in a turbulence chamber (9), which chamber (9) is defined between the nozzles (4) and (6) and bounded by the partition (10). <IMAGE>
Patent GB-2089649-A (GB)
Title: Toaster
IPC: A47J37/08
Filed: 1981-11-05
Abstract: A toaster comprises a housing (2) provided with a toasting chamber (12) bounded by reflecting transverse walls (18) having reflector wall portions (30, 32) between the planes of heating elements (24) and an inserted bread slice (13). The wall portions (30, 32) each include an obtuse angle in the toasting chamber with the plane of an adjacent heating element (24) in order to deflect the heating radiation incident thereon onto the vertical end portions of the bread slice (13) so as to compensate for the reduced radiation in this region due to the fact that the elements end at a spacing from the transverse walls. <IMAGE>
Patent GB-2114464-A (GB)
Title: Air pollution control apparatus
Inventor: CHING CHUAN TSAI
IPC: B01D50/00
Filed: 1982-01-06
Abstract: Gas scrubbing apparatus comprises stages for mixing, washing, chemically neutralizing, and filtering, arranged in a helical passage within a hollow cylinder. Toxic or exhaust gases are first mixed with and neutralized by warm water with chemical solutions from nozzles 1121, 1122 to form a gas-liquid mixture, which is passed through parallel filtering plates 1131-33, washed by hot water sprayed from nozzles 1141, 1142, and passed through a further filter 115. A similar second stage follows. In the third stage the gases are sprayed by fresh water, filtered by a filter and a series of filtering plates, washed again by water, and passed through a plate having a sponge filter attached thereto. In the fourth stage, after mixing, washing and filtering, the gases pass into a chamber with cooling tubes 144 and are finally filtered by a filtering plate and a cloth filter. Clean gas is exhausted from the outlet 20 of the apparatus 111 and 141 are rotary impellers. <IMAGE>
Patent GB-2093851-A (GB)
Title: Production of polyolefin polymerisation catalysts
IPC: C08F36/04
Filed: 1982-03-04
Abstract: A method for making novel catalysts for the polymerization of olefins, said catalysts being prepared by reacting a metal dihalide with certain transition metal compounds and reacting that product with certain organoaluminum compounds wherein in one embodiment that product is contacted with a halide exchanging source selected from halides of Groups IVA and VA of the Periodic Table and wherein in another embodiment a third component, such as an electron donor, is included in the reaction between the metal dihalide and the transition metal compound.
Patent GB-2117154-A (GB)
Title: Hand-written character recognition device
Inventor: LEY NIGEL GEOFFREY
IPC: G06V10/12
Filed: 1982-03-17
Abstract: Programmable hand-written character recognition device operates in various programmable modes to recognise and operate on character patterns derived from sets of digitised X-Y co-ordinate signals generated through electro-magnetic beat frequency coupling of pen signal generating means with device detecting means via receiving means comprising transverse arrays of microprocessor controlled switchable looped antennae located within a writing board 1. The coupled signals are processed to convert one or more analogue signals to digital form and indicative of the periodic point position and directional movements of a pen 3 upon a writing surface. Developed programs may be stored in bar code form for reloading into the device by use of a light pen, routines being provided for the recognition of standard character patterns as well as individually stylized character patterns in a device learning mode and usable in conjunction with special job functions such as shorthand and book-keeping. <IMAGE>