baber/WOPTO huggingface dataset:
Patent GB-2073114-A (GB)
Title: Multi-axis force stick, self- trimmed aircraft flight control system
IPC: B60N2/75
Filed: 1981-03-03
Abstract: A four axis force stick provides signals indicative of force applied to the stick in an axis corresponding to a control axis of an aircraft, including pitch, roll, yaw and lift/speed. The force-related signals are applied through proportional and integral gain signal paths to operate electrohydraulic servos that control the aerodynamic surfaces of the aircraft, such as the cyclic and collective blade pitch of the main rotor and the tail rotor blade pitch of a helicopter, or the ailerons, rudder, elevator and thrust of a fixed wing aircraft. Signal conditioning provides a dead band to avoid integrating minute, inadvertent force stick signal outputs, and vernier sensitivity at low forces with high gain at high forces. Analog and digital embodiments are discussed. The relationship between this wholly new mode of aircraft control and ancillary aircraft functions, such as ground steering, autopilot and stability functions, are also discussed. (Figure 2, not shown). <IMAGE>
Patent GB-2084132-A (GB)
Title: Method of making N-(2- methoxyethyl)morpholine
IPC: C07D295/088
Filed: 1981-06-23
Abstract: N-(2-methoxyethyl)morpholine is made by reacting morpholine with ethylene glycol monomethyl ether in the presence of a silica-alumina or phosphorus-containing catalyst.
Patent GB-2079749-A (GB)
Title: Process for the preparation of 4,1',6'-trichloro-4,1',6'- trideoxygalactosucrose
IPC: C07H5/02
Filed: 1981-07-06
Abstract: A process for the preparation of 4,1',6'-trichloro-4,1',6'- trideoxygalactosucrose (TGS) comprising the steps of:   (a) reacting sucrose with an acylating reagent under conditions to provide a mixture of acylated sucrose derivatives containing a major proportion of 6-monoacylated material; (b) optionally separating 6- monoacylated sucrose derivative from other acylated derivatives before step (c); (c) reacting the monoacylated sucrose derivative with a chlorinating reagent capable of chlorinating at position 1', 4 and 6' of a sucrose 6-acylate; and (d) deacylating and separating (in either order) the 4,1',6'-trichloro-4,1',6'- trideoxygalactosucrose material formed. o
Patent GB-2083961-A (GB)
Title: Signal Intercepting Circuit
IPC: H03F1/00
Filed: 1981-09-01
Abstract: A muting circuit comprising first and second differential amplifiers Q21, Q22 and Q23, Q24. A switching circuit Q32, Q29, Q30, receiving an intercepting signal P, is coupled to the first and second differential amplifier. In the absence of an intercepting signal, the switching circuit causes the first differential amplifier to conduct while cutting off the second differential amplifier. Upon receiving an intercepting signal, the switching circuit cuts off the first differential amplifier while causing the second differential amplifier to conduct. Furthermore, the switching circuit causes the simultaneous conduction of the first and second differential amplifiers during the rise time and fall time of the intercepting signal. The simultaneous operation of both differential circuits prevents D.C. fluctuations in input voltage from being supplied to an output transistor. Consequently, the D.C. output potential of an output amplifier does not substantially fluctuate, in spite of the intercepting operation. <IMAGE>
Patent GB-2087724-A (GB)
Title: Bactericide or foods and food processing machines or utensils
IPC: A01N31/02
Filed: 1981-09-25
Abstract: Previous techniques of sterilising foods and food processing machines or utensils suffer from a variety of disadvantages, such as causing a deterioration in the flavor or quality of the food. Such problems are now overcome by use of a bactericide comprising as active ingredients ethyl alcohol, and an organic acid or its salt and/or an inorganic acid or its salt. A food or a food processing machine or utensil can be sterilised by dissolving this bactericide in water, and contacting the resulting aqueous solution with the food or the food processing machine or utensil.
Patent GB-2107219-A (GB)
Title: An applicator
Inventor: SMITH JOHN CARUS
IPC: B05C9/04
Filed: 1981-09-29
Abstract: An applicator for continuously applying a substance to both sides of a length of material comprises two spaced applicator rolls 1 and 2 which contact substance in respective containers of the substance 3 and 4 and between which the material passes. Substance from the containers 3 and 4 is transferred to the material by the rolls 1 and 2, the amount transferred being controlled by respective doctor blades 9 and 10. After application of the substance, the material passes to a dryer. The apparatus facilitates continuous application of substance to material in a controlled manner. <IMAGE>
Patent GB-2097588-A (GB)
Title: Flexible switch member
IPC: H01H13/02
Filed: 1979-01-09
Abstract: A flexible switch member comprises a flexible plastics layers 16 carrying on one surface a first contact 48 and a first conductive lead 50, and a flexible tail 22 secured at its upper end to the flexible layer 16, bent downward from the layer inward from the edge of the layer, and carrying a second conductive lead 50 electrically connected to the first conductive lead, wherein the first contact 48 can be electrically connected to external circuitry. The flexible layer 16 is spaced by a spacer 18 from a facing surface 20 carrying a second contact 74 aligned with the first contact 50. <IMAGE>
Patent GB-2108317-A (GB)
Title: Oil immersed switch contact arrangement
Inventor: WARREN JACK L
IPC: H01H15/06
Filed: 1981-10-28
Abstract: An oil immersed switch contact arrangement has an oil filled reservoir 20 containing fixed contacts 30,31 and a ball or roller 29 engaged by a movable contact bar 21 which may be controlled by a cable 16 connected to an automobile accelerator pedal or may be controlled by an electromagnet. A bridge member 26 on the bar may interconnect further fixed contact members 23, 28 in one position of the bar. <IMAGE>
Patent GB-2095990-A (GB)
Title: Picture and like frames
IPC: A47G1/06
Filed: 1981-11-19
Abstract: A frame comprises a channelled member having an outside wall 2 together with a front flange 3 and a rear flange 4 which is considerably narrower than the front flange 3, the glazing, picture, backing etc 12,13 being retained against the inner surface of the front flange by clips of U shape located with the bight of the U between the edge of the glazing and the base of the channel, and having one arm of the U engaged behind the rear flange on the other arm of the U bent to form a leaf spring urged against the rear face of the glazing/picture/backing. Another construction of retainer/framing member is described (Figures 9 - 18, not shown). <IMAGE>
Patent GB-2088421-A (GB)
Title: Perforated sheet material and tubes for fluid filters
IPC: B01D46/24
Filed: 1981-11-25
Abstract: A perforated tube for use in a fluid filter is formed of perforated sheet material, e.g. metal, the sheet metal being formed with parallel spaced corrugations (10, 11) having apertures (16) formed in the flanks (14, 15) of the corrugations. The upper lip (18) of each aperture has a blunt upper edge (19) and a sharp lower edge (20) while the lower lip of each aperture has a blunt lower edge and a sharp upper edge, thus avoiding sharp edges on both the upper and lower surfaces of the sheet. The flanks of the corrugations may be deformed between the apertures (16) to form inclined louvre slits and adjacent bands of louvres are inclined in opposite directions. The filter element is formed from two such concentric tubes with intervening fibrous filter material. <IMAGE>
Patent GB-2091562-A (GB)
Title: Apparatus for controlling gas flow to a patient
IPC: A61M16/00
Filed: 1982-01-05
Abstract: A device for controlling the supply of two gases, for example, oxygen and air, to a patient comprises a manifold 106 to which are attached two valve assemblies 108, 110. The manifold has a first inlet 1 and outlet 5 for oxygen and a second inlet 2 and outlet 6 for air. Each valve assembly 108, 110 includes a spool valve 122 movable from a first to a second position under the influence of the pressure of the oxygen and air respectively. Valve assembly 110 has an inlet 18' communicating via passageway 15 with the inlet 1 and an outlet 22 communicating via passageway 16 with the outlet 6. Should the air pressure drop below a predetermined value then spool valve 122 of assembly 110 will move to its second position thereby permitting the passage of oxygen from inlet 18' to the outlet 22 in the valve assembly 110 so that oxygen from inlet 1 exits from both outlet 5 and outlet 6. Valve assembly 108 may provide for the supply of air through both outlets 5 and 6 if the oxygen supply is insufficient. <IMAGE>
Patent GB-2091065-A (GB)
Title: Hearing aids
IPC: H04R25/00
Filed: 1982-01-06
Abstract: A hearing aid has two parallel channels 1 and 2 with different amplifying characteristics. Channel 1 has a characteristic which increases with frequency over the mid range of frequencies while channel 2 has a characteristic which provides relatively constant amplification over all frequencies. Channels 1 and 2 include respective gates 5 and 6 which are controlled by a decision circuit 7 which distinguishes between voiced and unvoiced speech components so that channel 1 passes voiced components and channel 2 passes unvoiced components. The aid can be used with a higher gain setting than conventional aids without causing discomfort. <IMAGE>
Patent GB-2099655-A (GB)
Title: Light beam scan type marking- off device
IPC: G03G15/34
Filed: 1982-03-26
Abstract: For marking cutting lines and instructions onto the surface of a steel plate (18), a marking device comprises means (8) for generating a laser beam (11) and (7) for modulating the beam with data to be marked from a controller (4) fed by a computer (2); part of the modulated beam (11') is reflected from a mirror (10) to a detector (9) which feeds back to the controller for synchronising purposes, and the remainder of the beam is directed onto the surface of the plate (18). The plate may be moved on a carriage (16) at constant speed perpendicular to the one-dimensional direction of scan of the beam provided by a mirror drum (15) to form a two-dimensional raster image on a layer of photoconductive toner powder deposited from a unit (12) prior to the scanning. Means are provided for removing unexposed powder (13) and for fixing the powder image (14, 15). The cutting line data may be generated by scanning an original or may be computer generated. A second laser beam of different color may be combined with the marking beam for reflection by the mirror (10) to the photodetector (9) which is a linear detector having an array of slits; this ensures correct positioning of the beam on the plate, by an electronic control system. <IMAGE>
Patent GB-2096510-A (GB)
Title: A motor driven power tool
IPC: B25B23/147
Filed: 1982-04-08
Abstract: The tool comprises a casing (12) which contains an electric motor (11) connected to a tool holder (17) via a gear box (14) and a torque sensitive clutch (15), (16), (21), (22). The tool also includes switch means operable to cut off the motor when a torque above a predetermined value is transmitted across the clutch. The switch means includes a Hall effect device comprising a stationary Hall effect element (43) and a magnet (37) movable with a rod (32) in response to operation of the torque sensitive clutch. <IMAGE>
Patent GB-2119132-A (GB)
Title: Pilot operated relief valve
Inventor: REIP RAYMOND GRANT
IPC: F16K17/10
Filed: 1982-04-16
Abstract: A single stage proportional pilot valve (131) operates a main valve (7) to provide pressure relief flow corresponding to the degree of over pressure. A partially pressure balanced large diameter poppet (142), and reduced diameter seals 145 provide increased sensitivity to over pressure, improved setting accuracy, and poppet stability. A ball closure arrangement, (154) (158) acts to conserve test gas. Pressure in chamber 141a acts on diaphragm 141 against spring 135 to position poppet 142. <IMAGE>
Patent GB-2098706-A (GB)
Title: Tracking link
IPC: F41G3/10
Filed: 1982-04-30
Abstract: In a system (10) comprising a trunnion-mounted aiming device (11) and a trunnion-mounted sighting device (14) interconnected by a tracking link (13) and having an associated visual display (16) providing an image of the field of view containing the sight line (15) of the sighting device (14) there is provided a means of accurately positioning an aiming mark designating the pointing direction (12) of the aimed device (11) in the visual display (16). This positioning arrangement is provided by an elevation sensor (18) associated with the aimed device (11), an elevation sensor (19) associated with the sighting device (14), an electronic indicator mark generator (28) and an electronic processor (20), the latter being operable according to the measurements from the sensors (18, 19) to deflect the mark generated by the generator (28) so as to compensate in the elevation axis for backlash and inertia of the link (13) and in the traverse axis for lack of parallelism of the trunnion mountings of the devices (11, 14). <IMAGE>
Patent GB-2098336-A (GB)
Title: Underwater potential measuring apparatus
IPC: C23F13/04
Filed: 1982-05-10
Abstract: Apparatus for use in determining electric potentials underwater includes Luggin tubes 30, 31 of small diameter which are open to the water at their outer ends, the said outer ends being arranged at known spaced positions relative to one another, and valve means 34 to connect selectively the inner ends of the tubes via fluid in the tubes to a reference electrode 358 or half cell and to determine the potential between the open end of the selected tube as it appears at the reference electrode, and a further electrode 35a. The apparatus is used to determine the potential between spaced points in sea water adjacent metal structures during cathodic protection or corrosion measurement. <IMAGE>
Patent GB-2100902-A (GB)
Title: A static track relay system
Inventor: BACHETTI VITTORIO
IPC: B61L1/18
Filed: 1982-06-24
Abstract: The system includes circuitry for controlling the output from a 20 KHz generator (14) to an electromechanical relay (13), as a function of the voltage, frequency and phase correlations of the track signal with the local reference signal. The circuitry basically consists of a phase comparator (31) for the controlled feeding of generator (14) on condition that any deviation of the track signal frequency and phase from the local reference signal be within pre-set values. The phase comparator (31) preferably controls the 20 kHz generator (14) through a first magnetic threshold, or magnetic AND gate (30), depending upon the track signal which is supplied through a 50 Kz semi- active filter (21) which delivers an alternating output current of a constant amplitude and or a frequency which is equal to the track signal. The output from the 20 kHz generator (14) to the final electro- mechanical relay (13) is preferably applied via a second magnetic AND threshold (101) which determines, along with the final relay itself, the energizing and de-energizing levels of this relay. <IMAGE>
Patent GB-2432418-A (GB)
Title: Optical sensing system
Inventor: ELLIOTT CHARLES THOMAS
IPC: F41G7/22
Filed: 1982-07-02
Abstract: A scanning optical sensing system with enhanced capability for distinguishing point source targets against a cluttered background. The system includes an optical assembly (1) and a scan mechanism (9) arranged to scan an image (I) of a viewed scene (S) across the surface of a modified multi-element photosensitive detector (5). The elements (7) of the detector (5) used in this system, are modified by the provision of opaque or attenuating stripes (11), which may be equispaced or spaced in coded manner. The resultant output signal from each detector element (7) has a depth of modulation dependent upon target size and can be used to discriminate point targets from extended sources. Depth of modulation is from measurement of both output signal amplitude and modulation amplitude. Accurate target position is determined using a tuned, band-pass, or high-pass filter (23), a matched filter (33) and a coincidence timer (35) synchronised with the scan mechanism (9).
Patent GB-2123612-A (GB)
Title: Aerials
Inventor: JEFFERIES IAN MICHAEL
IPC: H01Q19/10
Filed: 1982-07-05
Abstract: An aerial has a main boom 10, a hole or depression 21 in the region of the main boom 10 at which a reflector 14 is to be mounted, a retaining plate 32 having a tongue 36 engageable in 30 having slots 44 for receiving the reflector plate 14 and fitted over the retaining plate 32 and the main boom 10, the retaining 32 plate having at least one upstanding detent 34 engageable with the plastics sleeve 30 to prevent displacement of the sleeve 30 along the main boom 10. <IMAGE>
Patent GB-2111352-A (GB)
Title: Improvements in or relating to radio communication systems
Inventor: ANDREWES MICHAEL ROBERT
IPC: H04J7/00
Filed: 1982-11-25
Abstract: A communication system comprising at least two channels, which are carried by a digital transmission signal, one of said channels having greater noise immunity than the other channel or channels, whereby when operating conditions render communication impossible on one channel, another channel having better noise immunity can be utilised. The channels are distinguished one from another by the extent of frequency or phase excursion or pulse width or amplitude.
Patent GB-2113750-A (GB)
Title: Roller blind to form double glazing
Inventor: FOXWELL RONNIE
IPC: E06B3/28
Filed: 1983-01-20
Abstract: An arrangement for double glazing an existing single glazed window comprises a hollow box 11 containing a roller blind consisting of a spring loaded roller 28 on which flexible sheet 5 is wound. The box 11 has a lip 13 over which the sheet 5 passes. Channel-section members 2 engage with respective ends of the roller box 11 to define a channel 16 extending along the side window frame members. A stiffening rail 25 is secured to the free edge of the sheet 5 and has end portions arranged to run in the channels 16. The stiffening rail 25 is received within a channel 16 of the bottom channel-section member 3 when the sheet 5 has been unrolled. A securing bolt may act between the stiffening rail 25 and one of the channel-section members 2, 3. The unrolled sheet 5 is therefore sealed along its whole periphery by the lip 13, the side channel-section members 2 and the bottom channel-section member 3. <IMAGE>
Patent GB-2115457-A (GB)
Title: Gallery lining
Inventor: SPIES KLAUS
IPC: E21D11/14
Filed: 1983-01-28
Abstract: In a known gallery lining, load- carrying lining elements are disposed at a spacing from the gallery wall and sealing sleeves which are filled with hardenable filling material are disposed between the lining elements and the gallery wall, such sleeves adapting to the irregularities in the gallery wall and providing pressure- transmitting contact with the rock after the filling material sets. In order also to make use of the solidified intermediate layer (15) for increasing the bending load-bearing capability of the lining structure (5), as well as to constitute a backfilling, the invention provides that the lining elements are formed from trough- shaped base portions (12a, 12b, 12c) within which are disposed sealing members (13) which project beyond side limbs (12a, 12b) of the base portions towards the gallery wall (2a) and which press sealingly at their free edges against the uneven gallery wall (2a) and, together with the base portion, form a permanent sheathing for the filling material (15) which, upon solidifying, forms a highly adhesive bonded structure with the sheathing and the gallery wall (2a). The bending load-bearing capability of the composite carrier (12, 13, 15) which adheres firmly to the gallery wall (2a) can be increased by a basket like structure (16) of support elements in the form of stiff wires (20, 20a, 20b, 24a, 25, 25a) which, when the sealing members (13) have insufficient inherent stiffness, also provide for holding them and pressing them sealingly against the gallery wall 2a). <IMAGE>
Patent GB-2114354-A (GB)
Title: Character display
Inventor: CLARK MICHAEL GEORGE
IPC: G09F9/302
Filed: 1983-01-31
Abstract: A multi-character multi-segment electrically addressable display panel. Character segments, e.g. (a to h), are defined at each of a number of adjacent locations by the overlap of two sets of electrodes (Figure 6; Figure 7). The electrodes of one set (Figure 7) are each associated with a single character location and a group of one or more segments [(a, b, g); (c, e); (d, f); (h)]. The electrodes of the other set (Figure 6) extend across all locations and are associated with no more than one segment in each segment group [(a); (b, e, f); (c, d, g)]. The panel is addressed using isogonal signals (i.e. all differences having same r.m.s. value) - e.g. pseudo-random binary sequence coded signals. The panel medium may be of dyed or undyed cholesteric-to-nematic phase change effect liquid crystal material, or other such material with low threshold or wide temperature range. <IMAGE>
Patent GB-2135047-A (GB)
Title: Artificial fuel for gas fires
Inventor: TAYLOR JOHN
IPC: F24C3/00
Filed: 1983-02-11
Abstract: An artificial fuel 2 for use, loose, in simulated solid fuel fires to give the appearance and heat output of an open fire is made of refractory ceramic fibre, bonded into an open structure that consists essentially of fibres, bonded where they cross and having free spaces between them, rather than a fired mass containing embedded fibres, the porosity of the structure being least of the order of 60% but preferably more, advantageously 75% to 85%, and both fibre and bonding agent being capable of continuous service at not less than 1000 DEG C. The fuel 2 is supported on a refractory grid 1 which may have additional projections thereon. A refractory base 4 may have projections 5 thereon. <IMAGE>
Patent GB-2134781-A (GB)
Title: Composition for the treatment of stasis leg ulcers
Inventor: WHITEFIELD MARTIN
IPC: A61L26/00
Filed: 1983-02-15
Abstract: Stasis leg ulcers are advantageously treated by topical application, with pressure bandaging, of a composition comprising a film- forming material such as methyl- cellulose, an acid such as lactic acid, an anti-bacterial agent such as Brilliant Green, and water.
Patent GB-2382248-A (GB)
Title: Alignment of acquisition systems
Inventor: GUPPY JOHN REGINALD
IPC: G01S7/497
Filed: 1983-03-17
Abstract: A target acquisition system 10 including, for example, a surveillance element which when a target appears in its field of view provides co-ordinates of that target to a laser rangefinding element, which, when its line of sight is directed to the target as defined by the co-ordinates, emits a laser ranging beam which must hit and be reflected from the target to effect ranging, is provided with an alignment apparatus comprising a target simulator 14 for generating a target simulating beam, a receiver 12 for receiving a ranging beam emitted from the acquisition system and for detecting deviation thereof from the target simulating beam, a concave mirror focussing device 11 for directing the ranging beam to the receiver, and means 22 for determining error signals proportional to any such deviation.