baber/WOPTO huggingface dataset:
Patent GB-2033451-A (GB)
Title: Drum type mineral-mining head
IPC: E21C25/10
Filed: 1978-11-03
Abstract: This invention relates to a cutter-head for a mining, preferably coal-mining, machine, and in particular to a drum-type cutter head, which can more efficiently load won mineral from the mine floor onto an armoured face conveyor. The drum-type cutter head comprises a body (5) to which is attached a substantially helical pick vane (6), having on it a plurality of picks (7) and a flexible resilient vane (1) located in spaced apart relationship with and substantially parallel to the pick vane (6), and which flexible vane (1) has a radial dimension approximately equal to the radius described by the picks (7). <IMAGE>
Patent GB-2038069-A (GB)
Title: Stringed musical instrument
IPC: G10D1/02
Filed: 1978-12-12
Abstract: The body 1 of the instrument, eg a double bass, is of narrow elongate shape and is divided into two resonating chambers 13, 14 of unequal size by a sound-beam 11 extending across the whole width of the body 1. The chambers 13, 14 are connected by at least one hole 15 extending through the sound- beam 11. The bridge 9 is supported on the frontplate 2 at the position of the sound-beam 11 and is in contact with an electrical pick- up 20. The volume ratio of the two chambers 13, 14 is preferably between 1:2 and 1:3, eg 2:5 for a double bass, with the chamber 13 nearer the neck being the larger. <IMAGE>
Patent GB-2017356-A (GB)
Title: Calendar timepiece
IPC: G04C9/00
Filed: 1979-02-19
Abstract: In an analog timepiece having calendar displays for day and date, a transducer operating independently of the hand driving transducer, feeds, that is, updates the calendar wheels automatically on a daily basis. Synchronization of the daily day and date changes is provided by a twenty-four hour wheel cooperating with the time-keeping mechanism. For setting the calendar displays, turning the stem in one direction polarizes a magnet and advances the day wheel, while turning the stem in the other direction reverses the polarity of the magnet and advances the date dial until desired settings are accomplished. The date advancing transducer can be automatically actuated for end of the month date adjustments.
Patent GB-2017562-A (GB)
Title: Pasta Testing Device
IPC: A47J43/28
Filed: 1979-03-22
Abstract: The edges of a pair of flat, transparent plates between which pasta is pressed to determine the degree of gelatinization of the starch are provided with notches 9 to deter longitudinal movement of the pasta. The base of each notch may be provided with a ridge 10 to increase the resistance to movement of the pasta. Notches 9a adjacent the outer ends of the plates may be used in extracting the pasta from a hot cooking utensil. <IMAGE>
Patent GB-2024835-A (GB)
Title: Reactive Dyes
IPC: C09B62/085
Filed: 1979-04-18
Abstract: The present invention provides reactive dyes which in the form of the free acid have the general formula I   <IMAGE> where R is methoxy or ethoxy and X is chlorine or bromine, individual Xs being identical or different. The dyes are mainly used for dyeing hydroxyl-containing material, particularly cellulosic fibres.
Patent GB-2025610-A (GB)
Title: Improvements in optical encoders
IPC: H03M1/00
Filed: 1979-06-14
Abstract: Optical encoder scale 1 for translating movement of a member into analogue, then digital signals has optical graduations which vary cyclically and non-linearly in density or reflectance with displacement, the non-linearity being preferably logarithmic. Movement of the graduations is sensed by two photoelectric channels, each comprising optical-fibre bundle 4 with end 3 spread in the direction of scale movement to receive light from lamp 2 which light is detected by photodetector 6. Signals from each photodetector are fed to dual-threshold hysteresis pulse- forming circuits 7 which have improved jitter-rejection because of the encoder form. Preferably respective ends 3 view out-of-phase portions of the scale. <IMAGE>
Patent GB-2026816-A (GB)
Title: Diaphragms for acoustic instruments and method of producing the same
IPC: H04R31/00
Filed: 1979-07-02
Abstract: A diaphragm for use in acoustic instruments is produced by blending and kneading an organic substance such as polyvinyl chloride, petroleum pitch, coal tar pitch, tetrabenzophenazine or lignin with a solid powder such as ceramic powder, glass powder, carbon powder or other inorganic powdery materials, shaping the blend into a desired form, and heating the shaped body to a temperature below 500 DEG C in an oxidizing atmosphere. The thus obtained shaped body is made of the composite material and has an oxide layer at the surface, showing an improved combination of density, elasticity and internal loss.
Patent GB-2057421-A (GB)
Title: Method of starting the process of manufacturing sheet glass
IPC: C03B18/02
Filed: 1979-08-30
Abstract: This invention comprehends applying short-lived tractive forces to a glass ribbon causing its bending and immersing it in a bath of molten metal after the interruption of acting of permanent longitudinal tractive forces. The invention is readily applicable for use in the manufacture of sheet glass by a fire polishing method. The molten glass (3) on the surface of the molten metal (4) advances as a ribbon (1) along tank (5) until it gets to device (7) having contact elements (8). The ribbon is then moved by the device to the end of the tank to contact the rolls (9) of an annealing lehr. <IMAGE>
Patent GB-2033477-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F01N13/00
Filed: 1979-09-04
Abstract: In a motor working fluid e.g. air, in a supply duct 12 acts on a piston 15 which actuates a valve- member or "disc" 20, which consequently opens an outlet 17 to exhaust e.g. the atmosphere. When the supply duct 12 is shut-off a resilient member 23 lifts the disc 20, which closes the outlet 17 and thus terminates the outlet noise. <IMAGE>
Patent GB-2034843-A (GB)
Title: Flexible Pipe Joints
IPC: F16L51/02
Filed: 1979-10-23
Abstract: This discloses a flexible pipe joint for absorbing stress in pipe-lines. It is capable of sustaining high loads and it does not require its tie bars to be welded or secured with screwed nuts. It comprises a bellows unit 1, and a transverse plate 3, 4 at each end of the unit, the plates being connected to one another by articulated tie rods. In a preferred design each tie rod consists of a thicker limb 6 connected to a pair of thinner limbs 7, 8 via a pivot 9. The tie bars are secured relative to the plates as a result of their projecting through the plates and by provision of stops which bear against the sides of the plates that face away from the bellows. <IMAGE>
Patent GB-2038568-A (GB)
Title: An electric connector and locking means therefor
IPC: H01R13/627
Filed: 1979-11-26
Abstract: The invention relates to an electric connector with mating male and female portions, said connector being equipped with locking means. One of the connector portions of the device includes at least one body (20) which carries contacts (21), a slot (27) passing through said body and leaving a free passage for a locking hook (35) and at least one hood (30) integral with the hook (35) and fixed with clearance to the body (20), said clearance allowing play between the hood (30) and the body (20) to allow the hook (35) to move and be released (Fig. 3, not shown) when the male and female portions of the connector are unlocked. Such a device is used advantageously in telecommunications equipment. A metal hook (35) may be used to act as a screen between the contacts. <IMAGE>
Patent GB-2065391-A (GB)
Title: Power supply system
IPC: H02M3/07
Filed: 1979-12-05
Abstract: A power supply system for an electronic device such as a watch, calculator, having a battery power source (1), a logic circuit (7), a voltage converter (4) which produces a lower voltage (V2) than the battery (V1), and a load circuit (3) to drop the output voltage of the battery power source (1), comprises a voltage switch circuit (6) for supplying selectively the output voltage (V1) from the battery (1) or the lower voltage from the voltage converter (4) to the logic circuit as drive voltage. In the system, the logic circuit (7) is usually operated by the lower voltage from the voltage converter (4). When the load circuit (3) operates, the logic circuit is operated by the output voltage from the battery power source (1). <IMAGE>
Patent GB-2069679-A (GB)
Title: Non-rechargeable cartridge or bottle and a process for making it
IPC: F17C13/06
Filed: 1980-02-15
Abstract: A non-rechargeable, discardable cartridge e.g. for soda water syphons has a one-piece specially shaped metallic plug (4) disposed in a suitably pre-formed cartridge mouth (2) between which before filling, there is a suitable filling gap (6, 7). After filling, the gap is sealed by deforming the mouth (2) against the plug (4) so as to produce a seal and safety flange. <IMAGE>
Patent GB-2071257-A (GB)
Title: Reinforced polymeric hose
IPC: F16L11/08
Filed: 1980-03-12
Abstract: A polymeric hose and method of making same are provided wherein such hose comprises an inner base tube 12, a reinforcing braid 11 made of aramid (R.T.M.) yarn disposed concentrically around the base tube with the aramid yarn having great affinity for water, a moisture impervious tubular film 13 disposed on the braid 11, a plastisol adhesive layer 15 and a cover tube 16 with the film 13 isolating the aramid yarn and resulting in a tubular zone between the braid 11 and cover tube 16 free of water moisture created bubbles. The film 13 may be an acrylic latex. <IMAGE>
Patent GB-2076555-A (GB)
Title: Point Source Projection Apparatus for Viewing Models
IPC: G09B9/30
Filed: 1980-05-21
Abstract: A point source projection apparatus in which the image or shadow of the object 10 is collected by an image gain system such as a lens 17, mirror or television system and displayed on a suitable television display apparatus. The image received can be suitably enhanced thereby allowing the use of a small point source 11. In the embodiment shown the lens 17 focuses the light at 16. The light rediverges from focus 16 onto the faceplate of a television camera 22. Stray reflections from the model surface diverging from virtual source image 14 are not brought to a focus at 16 by the lens 17 and can be eliminated by stop 21. <IMAGE>
Patent GB-2076767-A (GB)
Title: Coupling Arrangement for a Submersible Vessel
IPC: B63C11/34
Filed: 1980-05-30
Abstract: A coupling arrangement for an underwater vessel comprises a Y- shaped bridle (8) pivotally mounted on the vessel so that the stem of the Y can extend beyond the vessel (1) at one end. The stem of the Y carries a coupling member (16) which has a slot for receiving a tethering cable (17) to which the vessel is attached. The slot communicates with a recess arranged to receive an abutment (22) provided on the cable to couple the cable to the bridle. <IMAGE>
Patent GB-2058853-A (GB)
Title: Weft inserting device for shuttleless loom
IPC: D03D47/23
Filed: 1980-07-03
Abstract: A rapier weft insertion head a rear wall 22 with a warp deflection nose 24 and surface 23, the rear wall 22 forming with the top wall 27 a weft guiding slot 30, the top wall 27 having a horn 28 protecting the slot 30, a front wall 33 with a weft guiding nose 38, and a spring loaded weft clamp 44 that is pivoted on the front wall 33 and clamps the weft between its under surface 44b, a top surface 37 of the front wall 33 and between a depending flange 44c of the clamp 44 and the front wall 33. <IMAGE>
Patent GB-2080883-A (GB)
Title: Gas turbine engine
IPC: F02C3/30
Filed: 1980-07-03
Abstract: A turbine rotor 2 is driven by combustion gases directed via nozzles 5 on each side of the rotor against blades 4, the gases being augmented by steam injected into the nozzles and generated in a water jacket within the turbine casing. The fuel/air mixture for combustion is compressed by exhaust gas turbine driven compressors. <IMAGE>
Patent GB-2067627-A (GB)
Title: Well logging-while-drilling tool
IPC: E21B47/18
Filed: 1980-09-26
Abstract: A drilling orientation well tool is described in which variables of interest (e.g. tool heading, inclination and orientation) are measured and each encoded into a coarse part and a fine part. The encoded information is transmitted to the surface as mud pressure pulses (603-608). The pressure pulses are produced by varying the area of a mud flow passage through the tool. Power for controlling the area of the flow passage is derived from mud pressure variations which charge a hydraulic system within the tool. The encoders drive a solenoid valve to control the hydraulic system. <IMAGE>
Patent GB-803818-A (GB)
Abstract: 803,818. Furnaces. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 27, 1956 [June 3, 1955], No. 16023/55. Class 51 (1). The supply of secondary air to a solid fuel furnace is controlled by dampers 17, 19, 21 disposed in a trunk 1. The first damper 17 automatically cuts off the whole air supply when the fire-door 2 is opened and restores it when the fire-door is closed, the second damper 19 provides the maximum air supply requirements at any time in the firing cycle and is independently adjustable, and the third damper 21 automatically opens with the fire-door but closes independently thereof to reduce the air supply.
Patent GB-2088922-A (GB)
Title: Panel, e.g. for Fencing, Gates or Walls
IPC: E04C2/12
Filed: 1980-12-05
Abstract: The panel comprises feather edged boards 2 each formed with a central groove 6 in its wide edge (4). The narrow edge 5 of each board is received in the groove 6 of the board above. The narrow edge of top board 2 min  is received in groove 8 formed in a top frame member 9. Boards 2 are sandwiched between frame members 10 secured together by nails 14. Thus, the narrow edge 5 of each board is reinforced by the wide edge 4 of the adjacent board, and both sides of the panel appear identical. The frame 3 may consist of top member 9, with weather-cap 15, and 3 pairs 11, 12, 13, of members 10. <IMAGE>
Patent GB-2069126-A (GB)
Title: Improvements in or relating to heat recovery apparatus
IPC: F24D17/00
Filed: 1981-02-04
Abstract: Apparatus in which clean water is heated by contaminated water, particularly water containing solids, comprises a chamber 11 into which tubes 30, Fig. 3, extend from an inlet (e.g. a header 12), the tubes opening at their outlet ends into the chamber. Other tubes 31 extend from a clean water inlet (e.g. a header 13) and through the tubes 30 to an outlet (shown as a chamber 14 which may be adjacent the header 13 or adjacent the header 12). In use contaminated water is passed along the tubes 30, whilst clean water is passed along the tubes 31. Means for flushing pipes 30 to a drain, should they become blocked by silt or other solids may comprise causing clean water to flow via a flushing line 25 through the chamber 11 and, with either a forward or reverse flow, through the tubes 30. Each tube 31 may be a twisted U-tube with a spirally-fluted wall or with external helical fins. <IMAGE>
Patent GB-2095411-A (GB)
Title: Paper porosity
IPC: G01N15/08
Filed: 1981-02-09
Abstract: A gas flow control device comprises a plurality of contiguous chamber communicating in series, the up-stream chamber having a gas inlet and the gas outlets from one chamber to the next and from the downstream chamber being constituted by respective porous walls of sintered material for which gas flow is directly proportional to pressure drop over respective different flow value ranges whose maxima increase downstream from chamber to chamber. The control device may be used in a method of measuring the porosity of a gas permeable sample in which gas from a pressure source is passed through the device and then through the sample, the pressure drop across the sample is measured and the pressure drop across the porous wall through which laminar flow is achieved is measured, the air flow is derived from the air flow/pressure drop ratio for the wall and the permeability of the sample is derived from the air flow and the pressure drop across the sample.
Patent GB-2072570-A (GB)
Title: Plastic springs
IPC: B29C53/12
Filed: 1981-03-19
Abstract: A plastics coil spring is produced by taking a length of plastics monofilament, winding it onto an aluminium former 2, securing its ends 4 to the former and subjecting the supported coil to a heat treatment process which consists of immersing the supported coil in a bath of hot heat transfer oil followed by cooling of the supported coil. In order to increase the axial pretension of a tension spring some or all of the coil convolutions may have their helix inverted subsquent to the heat treatment process. <IMAGE>
Patent GB-2096286-A (GB)
Title: Rope clip
IPC: F16G11/06
Filed: 1981-04-03
Abstract: A rope clip for use, e.g. on endless rope haulage systems, comprises co-operating jaws (11, 13) movable towards a rope engaging mode, a resilient bias (6) for the jaws, and an adjustment screw mechanism (17, 25) for urging the jaw (13) towards a rope engaging mode. An abutment stop arrangement (28, 29) is provided for limiting movement of the jaw (13) towards a rope engaging mode. <IMAGE>
Patent GB-2079029-A (GB)
Title: Magnetic recording apparatus
IPC: G11B5/03
Filed: 1981-04-13
Abstract: Magnetic recording apparatus whereby information signals may be recorded on a magnetic tape, comprising means 4 for applying a bias signal to the magnetic tape. The apparatus further comprises a spectrum analyser 5 for deriving a control signal representative of the frequency and/or energy spectrum of the information signal and a frequency control unit 6 responsive to the control signal for varying the frequency of the bias signal applied to the tape. <IMAGE>
Patent GB-2097097-A (GB)
Title: Making piston rings
IPC: B23P15/06
Filed: 1981-04-22
Abstract: A method of manufacture of a piston ring, includes making a ring blank having an outer diameter which is greater, and an inner diameter which is less than that required in the finished ring, cutting a gap in the ring blank to afford two free ends and at least partly closing the gap by the application of force only to each of the free ends. One or more blanks 10 are clamped in this configuration between a stationary clamping member 60 and an annular clamping member 87 forming part of a machining head 78. The interior and exterior peripheries of the clamped blank or blanks are machined simultaneously to be circular, by boring and turning tools 91, 92 carried on inner and outer parts 79, 81 of the machining head. <IMAGE>
Patent GB-2101663-A (GB)
Title: A greenhouse ventilator
Inventor: FITZPATRICK GILLIAN MAUREEN
IPC: A01G9/24
Filed: 1981-04-24
Abstract: A ventilator for the plastics sheeting wall of a tunnel-type greenhouse (11), includes a frame (19) forming a border for an opening in the sheeting, each limb (19a, 19b, 19c, 19d) of the frame being formed from two cooperating parts, (1, 2) which interengage to trap the sheeting between them to reinforce the edge of the opening. The frame (19) comprises independent limbs (19a, 19b, 19c, 19d) coupled by resilient couplings at the corners of the frame (19) to permit flexing of the sheeting as this is moved by the wind thereby avoiding tearing where the ventilator opening is formed. <IMAGE>
Patent GB-2078087-A (GB)
Title: Smoking articles containing tobacco and method of making such
IPC: A24D1/00
Filed: 1981-05-08
Abstract: A smoking article (15) comprises a coherent mass (9) of combustible tobacco-containing material having at least one passage extending through it between two spaced openings in the surface of the mass, the tobacco mass having such porosity as to support combustion when ignited and such density and porosity as to substantially occlude gas flow therethrough. The article preferably has at least one air-permeable plug (5, 6) of readily ignitable material blocking the passage at one or both ends. The tobacco-containing mass may include non-tobacco filler particles, such as carbon or clays, and the plug may contain a flavorant. The articles may be made by shaping a mixture of combustible tobacco material with a volatile liquid, for example a mixture of water and ethanol, under pressure into a discrete coherent mass, preferably by extrusion, forming a passage through the mass, and drying the mass to a porosity and density such as to substantially occlude gas flow therethrough but to support combustion when ignited. <IMAGE>
Patent GB-2082894-A (GB)
Title: A cabinet for the distribution and collection of workers' garments
IPC: A47B61/00
Filed: 1981-07-01
Abstract: A cabinet for the collection and distribution of workers' garments comprises a group of adjacent partitioned-off compartments 3 in the cabinet, each of which compartments registers with a corresponding lockable withdrawal shutter 41 in a lockable door 40 of the cabinet, and three further spaces 12, 14 and 15 within the cabinet, which are also closed by the lockable door, the invention being characterised in that the further spaces include two lower spaces 14, 15 which are disposed below the group of compartments and are separated one from the other by a vertical partition 6, one of the lower spaces being accessible through an opening 38 in the cabinet door, and upper space 12 disposed above the group of compartments and being smaller in height than either of the lower spaces. A supply of fresh garments is delivered to the space 14 before distribution to the compartments 3. If a compartment already contains a garment, then the extra garment is placed in the upper space 12. Workers subsequently collect their fresh garments from their assigned compartments and deposit their used garments into the sack through the opening 38. <IMAGE>
Patent GB-2082233-A (GB)
Title: Road stud
IPC: E01F9/06
Filed: 1981-08-05
Abstract: A cast iron road stud has a solid body 10 of which the undersurface 16 lies flush with the road surface. A depending root or boss 26 is anchored in a hole drilled in the road surface. A dovetailed reflective insert 18 fits in an undercut recess 14, being inserted from underneath the stud in the direction of arrow A. <IMAGE>
Patent GB-2084971-A (GB)
Title: Container and closure assembly
IPC: B65D17/50
Filed: 1981-08-26
Abstract: A liquid container assembly has a hollow container body (1) and a closure member (2). The container body is preferably oblong in plan and has a raised rim (5) at the outer edge at the top to provide a dished central portion (6) with a pouring opening (7) and an air vent opening (8). The closure member (2) is a substantially flat removable and replaceable strip of flexible resilient material with two depending projections on the underside to fit within the two openings to seal the body and is flush with or below the top of the rim when the closure member is in operative sealing position. The top of the body may have a third opening (9) and the closure member a third depending projection to fit within the third opening to act as an anchor to hold the closure member in position on the body, the member being bent upwardly intermediate its length and held back or swivelled sideways for pouring. <IMAGE>
Patent GB-2085561-A (GB)
Title: Improvements relating to furnaces
IPC: F23K3/18
Filed: 1981-10-02
Abstract: The invention relates to apparatus for introducing fuel or material for incineration into a furnace which comprises a feed tube 16 for projecting materials towards a deflector 18 positioned within the furnace, and means for altering the position of the deflector to allow the distribution of the material falling on the bed 12 to be varied. In this way, the feed tube 16 can be arranged at one end of the furnace to prevent it from interfering with the convection tubes when the furnace forms part of a boiler. <IMAGE>