baber/WOPTO huggingface dataset:
Patent GB-2012617-A (GB)
Title: Drafting materials
IPC: B05D5/02
Filed: 1979-01-10
Abstract: Thermoplastics films suitable for use as drafting materials comprise a filled film or a film composite having a filled layer, the fillers having a nominal particle size in the range 4 to 15 ???m and providing a roughened surface, and a matt layer adherent to the roughened surface comprising a binding resin and secondary filler particles having a nominal particle size in the range 1 to 15 ???m in an amount 10 to 100% by weight and having a coat weight of 0.05 to 2.0 g/m<2>. Also relates to a process for producing the films.
Patent GB-2017307-A (GB)
Title: Measuring the Travel of a Reciprocating Object
IPC: G01C21/16
Filed: 1979-01-26
Abstract: The invention relates to an arrangement for measuring the travel of an object moving successively to and fro along an axis, in particular the vertical travel of a ship caused by the motion of the sea, using an acceleration measuring member (1) which supplies an output voltage proportional to the acceleration of the object along the axis, from which a measurement signal proportional to the travel is obtained by double integration. A double integrator (2) is provided for the double integration of the output voltage from the acceleration measuring member and the forward path of the double integrator comprises a second-order low-pass filter (3) which has frequency dependent negative feedback such that the feedback which takes place is greater with input signals of low frequency, and in particular with DC voltage signals, than with input signals high frequency. <IMAGE>
Patent GB-2013288-A (GB)
Title: Shaft sealing assemblies
IPC: B63H23/32
Filed: 1979-02-13
Abstract: A shaft sealing assembly, and especially a ship's propeller shaft sealing assembly includes a sealing member and is constructed so that it is possible to apply varying pressures to the sealing member. As shown, a pressure chamber 5 surrounds a shaft 7 and houses an annular sealing member 9 urged into rubbing contact with a counterface 10 by springs 11 and by fluid pressure in the chamber 5. The chamber 5 has closable inlets 15, 16, 17 respectively communicating with a stern tube bearing oil chamber, with sea water surrounding the sealing assembly, and with an independent source of fluid pressure. <IMAGE>
Patent GB-2017758-A (GB)
Title: Process for the manufacture of sponge iron
IPC: C22B7/00
Filed: 1979-02-28
Abstract: A process for manufacturing sponge iron includes the steps of crushing iron-oxide-containing scales produced during hot-rolling of iron products, separating non- ferrous impurities from the scales magnetically and adding up to 3% by weight of powdered carbon to facilitate the subsequent formation of the crushed material into pellets. The pellets are heated in a reducing atmosphere to 650 DEG C for about one hour and to 900 DEG C to 1100 DEG C for a further hour and cooled, still in a reducing atmosphere, to form sponge iron.
Patent GB-2019791-A (GB)
Title: Improvements in Wheels for Road Vehicles
IPC: B60B3/12
Filed: 1979-04-17
Abstract: A pneumatic tyre vehicle wheel comprises a rim and a disc. The disc has an attachment zone 3 which is intended to co-operate with means for fixing the wheel to the hub of the vehicle, and a web or outer portion 4 placed between the attachment zone and the rim and by means of which the disc is fixed to the rim. On at least one surface of the disc there is provided, concentrically with the rotational axis of the wheel, a rigid, continuous, annular member 9 secured to or integral with the disc, and preferably having the greatest possible ratio betweeen its moment of inertia and the surface area of its radial section. <IMAGE>
Patent GB-2018637-A (GB)
Title: Armature winding machine
IPC: H02K15/09
Filed: 1979-04-17
Abstract: Winding drive apparatus for an armature winding machine comprises two counter-rotating winding arms 6, 6' driven by respective driving units 10, 10' which are separate and independent from one another. On each of two driving- winding shafts 1, 1' is arranged a driving motor 2, 2' with tachometer generator 3, 3', preferably a disc- rotor-motor with d.c. tachometer generator. The shafts 1, 1' are hollow to feed wire to the winding arms. The driving units are displaceable towards and away from the armature 4. The usual transmission members from the motor shaft to the winding shaft are absent. The apparatus is advantageous for winding of armatures having an odd number of slots. <IMAGE>
Patent GB-2049893-A (GB)
Title: Fluidised bed fired shell boilers
IPC: F22B31/00
Filed: 1979-05-15
Abstract: In a fluidised bed coal fired shell boiler of the dry or wet back type wherein the temperature of the bed 7 is controlled by one or more water cooling tubes 41 passing through the bed, one end of the or each tube is connected to that part 31 of the shell beneath the combustion chamber 5 and the opposite end of the or each tube is connected to that part 27 of the shell above the combustion chamber. Each tube 41 is generally U- shaped and has a first part extending through the bed 7 at a shallow incline. Preferably, the dimensions and location of the cooling tube(s) 41 are such that the water/steam mixture in the tube(s) is self-circulating and the arrangement is such that nucleate boiling occurs within the tube(s). <IMAGE>
Patent GB-2054088-A (GB)
Title: Cleaning of plate-type flame traps and flame retarders
IPC: B08B3/02
Filed: 1979-06-08
Abstract: The invention employs a jet of liquid directed into the gaps (22) between the plates (20) of the flame trap under a sufficient pressure to force the liquid through the gaps, thus cleaning them of any material lodged therebetween. For this purpose the apparatus provides a self-contained unit (2) in which a nozzle (26) issuing the jet is reciprocated both along a direction in which the gaps lie and in a direction normal thereto so that the jet or a part thereof is traversed along one gap in one direction and then traversed along an adjacent gap in the opposite direction. <IMAGE>
Patent GB-2023371-A (GB)
Title: Optoelectronic scanner, e.g. for a facsimile system
IPC: G06K11/00
Filed: 1979-06-15
Abstract: In the optoelectronic scanning of fine detail or areas of low contrast in an original, small video signal amplitudes occur. Such a signal can only be accentuated if the video signal is continuous. A pulsed signal occurs on scanning the original with a line of photo-diodes and on processing the signal by means of sample and hold circuits. The invention proposes that a low-pass filter 17 be connected at the outlet of the scanning member 4 to convert such pulsed signal into a continuous signal. The low-pass filter may have an amplification frequency characteristic which has an increased amplification in the flank area so that the high frequency parts are amplified and loss of detail is compensated for. <IMAGE>
Patent GB-2030223-A (GB)
Title: A four-stroke internal combustion engine adapted to operate with a stratified charge
IPC: F02B75/02
Filed: 1979-08-17
Abstract: A main combustion chamber (3) is supplied with a lean air-fuel mixture and an auxiliary combustion chamber (4) is supplied with a rich air-fuel mixture, the supply of mixture to the main combustion chamber (3) being interrupted when the engine is at idling speed and the amount of air-fuel mixture supplied to the auxiliary combustion chamber (4) being increased, said auxiliary mixture quantity being greater than is necessary for producing an ignitable air-fuel mixture for idling. <IMAGE>
Patent GB-2030472-A (GB)
Title: Apparatus for compacting and agglomerating plastic wastes
IPC: B29B17/04
Filed: 1979-09-10
Abstract: Plastics waste compacting and agglomerating apparatus comprises a vertical cylindrical container 3 with a lid 6 supporting a filling shaft 7 with an aperture 8 and extractor fan 9. Two sets of uniformly-spaced stationary cutting blades 17 are mounted at four places in the wall of the container 3 by support brackets 20. Each of the vertically spaced sets comprises four cutting blades 17 which are cylindrically ground and extend between the cutting planes of three vane-like cutting blades 18. These are rotated by a driven shaft 4, spaced apart one above another, relatively offset by 90 DEG , cylindrically ground and extend adjacent the container inner wall. A further cutting blade 19, having upwardly inclined cutting edges, is secured to the upper end of shaft 4. The underside of each rotary cutting blade 18, 19 is adjoined by a co-rotating vane 21, 22 whose lower edge is flush with the plane of movement of the top surface of each subjacent rotary cutting blade 18. The ends of each vane 22, 21 are bent rearwardly viewed in the direction of rotation and describe a circle of movement whose diameter d is substantially half the internal diameter D of the container. The cutting edges of the stationary cutting blades 17 extend in the direction of rotation and substantially tangentially to the circles of movement of the vanes 22. Air or liquid cooling distributors 11 are provided. <IMAGE>
Patent GB-2033244-A (GB)
Title: Solvent Extraction of Solids and Slurries
IPC: B01D11/00
Filed: 1979-09-21
Abstract: A solids/liquid contactor comprises a container through which solids-containing liquid phases flow in countercurrent. A rotor 14 is mounted for rotation in the container and a plurality of discs 13, dividing the container into interconnected compartments, rotate therewith. A plurality of buckets (not shown) between the discs carry material from one phase to the other phase during rotation. The contactor is mounted so that the angle the axis makes with the horizontal can be adjusted, e.g. by jacking screw 22. A preferred use of the contactor is in extracting hydrocarbons from tar-sands. <IMAGE>
Patent GB-2059638-A (GB)
Title: Hydraulic pressure supply system
IPC: B60G17/04
Filed: 1979-09-26
Abstract: A vehicle which includes such a system has a pump 1 supplying fluid pressure by way of a non- return valve 4 and an accumulator 5 to a service station 7 including a closed centre valve by which fluid pressure is to be tapped on demand. The system includes a relief valve arrangement 6 having a normally closed main spool valve 9 and a normally closed pilot spool valve 10. The latter is displaced when the fluid pressure in accumulator 5 reaches a desired value, to open communication between the fluid pressure main spool chamber 17 thereby causing displacement of the main spool valve 9 and unloading of fluid pressure from the pump 1 to the reservoir 2. A different- piston main spool valve can be biased closed hydraulically as well as by the spring shown by communicating chamber 18 with the output from pump 1. The service station 7 can serve hydraulic suspension or braking and fluid pressure supply to the accumulator 5 from pump 1 can be by way of a flow divider valve the other outlet of which serves a power assisted steering gear. <IMAGE>
Patent GB-2044334-A (GB)
Title: Improvements Relating to Windows
IPC: E06B3/28
Filed: 1979-10-02
Abstract: The insulation of a window is improved by cutting a piece of clear transparent flexible plastics cling film to a size sufficient to cover the window, and adhering the film to the window. The film may be PVC or polyethylene cling film which is stuck to the windows frame by double-sided adhesive tape. If two pieces of film are overlapped, they cling together to form a single larger piece. The film is run over a conductive bar to reduce the static electricity on it and increase its handling properties. The materials are preferably assembled into a kit comprising a roll of film, a roll of adhesive tape, and a cutter. <IMAGE>
Patent GB-2036377-A (GB)
Title: A Control Apparatus
IPC: B64C13/50
Filed: 1979-10-03
Abstract: In an aircraft flight control apparatus controlling a motor M forming an actuator, two independent position command signals are received at E1 and E2, and the power supply means connected across the motor M to cause it to move the actuator in the direction commanded by the position command signals, if they both command the same direction of movement, until the actuator has moved to whichever of the positions commanded by the position command signals is nearer the initial position of the actuator, or for bypassing the motor and hence preventing it from operating if the two position command signals command movement in opposite directions. <IMAGE>
Patent GB-2039950-A (GB)
Title: Hard alloys
IPC: C22C19/05
Filed: 1980-01-04
Abstract: A hard, wear resistant nickel based alloy including a carbide-former, preferably niobium, and essentially cobalt free but which has similar properties to cobalt, chromium, tungsten, carbon alloys is disclosed. The alloys of the invention are suitable for surface or welding consumables, and as articles for making hardfacing depositions, and have a compositional range:-     wt%    Cr  26-40  one or  W  both  Mo  6-15     C  0.55 - 2.5  one or  Nb  more  Ti  of  V  1 - 7.5     Ta     Hf     Zr     Ni  Balance (at least 35%)   Optionally one or both Si and Mn may be present up to 5%, Cu may be present up to 5%, aluminium and/or one of the rare earths up to 2%, B up to 1% and iron up to 25%.
Patent GB-2043207-A (GB)
Title: Rotary coupling
IPC: F16D3/00
Filed: 1980-02-14
Abstract: An articulated coupling for shafts (10, 12) comprises two coupling hubs (18) connected by a coupling-sleeve (20), which in one embodiment Figure 2, comprises a central portion (44) and two end portions (36), each of which carries flexible drive transmission elements (34). A laterally and torsionally flexible shaft (22) is rotationally rigidly bolted to the coupling hubs (18) through flanges (26, 28) to transmit axial loads. As a safety measure, in order to guarantee stoppage of the machine set in which the coupling is installed in the event of the drive transmission elements breaking, the coupling hubs (18) and end portions (36) have interengageable teeth (30, 32). In another embodiment, Figure 4 the teeth (30, 32) provides the driving connection between the hubs, and comprises internal teeth (30) on the hubs and external teeth (32) on the sleeve (20). Abutment means (40, 42) are provided to act in the event of failure of the flexible bar. <IMAGE>
Patent GB-2049062-A (GB)
Title: Dispensing container for pasty compositions
IPC: B65D83/00
Filed: 1980-02-25
Abstract: A container comprises a tubular body 1 containing a piston 3 which, by means of a screw threaded spindle 2 actuated by a rotary cap 13, is displaceable along the body for squeezing pasty composition from the body cavity R through channels 16, an outlet passageway 6, and a mouthpiece 14. Ratchet means may be provided to impede reverse actuation of the cap. <IMAGE>
Patent GB-2048973-A (GB)
Title: Cutting machines for pile fabrics
IPC: D06C13/08
Filed: 1980-05-01
Abstract: A machine for cutting the loops of loop-pile fabrics (4) to form cut-pile fabrics, such as corduroy, velvet and velveteen, comprises driving, trailing and guiding rollers (2, 3) arranged to pass a loop-pile fabric (4) sequentially over a first bed (5) and a second bed (6). At each bed (5, 6) there is a rotatable shaft (7, 8 respectively) carrying annular cutting knives (12, 13 respectively). There are needle guides (14, 15) for each knife, controlled by actuation means (10, 16 and 11, 17 respectively) at the first bed (5) and second bed (6). The needle guides (14, 15) thread through the loops of races of the loop-pile fabric to be cut, and those at the second bed (6) are arranged to guide the associated knives (13) to cut the loops of the races of the loop-pile fabric uncut at the first bed (5). <IMAGE>
Patent GB-2075409-A (GB)
Title: Drills
IPC: E21B10/44
Filed: 1980-05-09
Abstract: A drill comprises at least one helical spline (3) for removal of rock drillings, a cross-head working tip provided by hard metal inserts (5), and two pairs of the diametrally opposed flutes (8, 8b; 8a, 8c) connecting the tip to the helical spline (3). The helix angle of each flute is greater than that of the helical spine but less than 90 DEG , and may be different to the helix angle of other flutes. The side edges of the flutes may diverge towards the tip and the end of the drill may have chamfers which slope away from the tip and towards the flutes. <IMAGE>
Patent GB-2076357-A (GB)
Title: Silo emptying apparatus
IPC: B65G65/46
Filed: 1980-05-22
Abstract: This invention concerns the clearing of a silo. In particular the invention relates to a three-wheel 50, 52, 54 progression unit mounted upon the wall end of a sweep beam containing a sweep auger 20, 22. As distinct from previous designs, the progression unit runs on a steel angle iron 46 fitted to the silo wall and with three-wheel contact no slip occurs and the unit cannot climb. As a second feature of the invention the main screw flight 22 in the arm 20 contra-rotates thus throwing non- conveyed material forward onto the heap allowing for a second bite as distinct from earlier designs in which the screw flight rotates with the direction of travel thus depositing grain behind the arm. A third feature of the invention concerns the articulated joint between the main pivot box and the main arm thus compensating for uneven silo floors. <IMAGE>
Patent GB-2076495-A (GB)
Title: Clevis joint
IPC: F16C11/04
Filed: 1980-05-27
Abstract: In a clevis joint including a bifurcated clevis (1) having arms (2) and (3), a blade spring (16) is provided on the inside of the arm (2) to prevent rattle of a component (6) received between the arms (2) and (3) and coupled to the clevis (1) by a pin (10). <IMAGE>
Patent GB-2051681-A (GB)
Title: Printing rolls
IPC: B41C1/18
Filed: 1980-06-20
Abstract: A printing roll comprises a plastics sleeve having a slight internal taper so that it can be fitted lengthwise onto a similarly tapering core with the assistance of compressed air to expand the sleeve. The plastics sleeve carries an outer metal layer of uniform external diameter suitable for providing e.g. a gravure or offset printing surface. The metal layer and plastics sleeve can be brought together in various ways, e.g. by close winding copper wire or strip onto the sleeve and securing it by adhesive, then the wire is ground down to a smooth uniform surface, which is then electroplated using the wire layer as an electrode to deposit a homogeneous metal layer; by inserting the plastics sleeve into a metal tube and adhesively attaching it therein; by moulding the plastic sleeve inside a metal tube; by spraying of the metal coating followed by electroplating; or by electrolessly plating followed by electroplating.
Patent GB-2078260-A (GB)
Title: Refining Cr-containing iron
IPC: C21C1/02
Filed: 1980-06-20
Abstract: A process for dephosphorization-denitrification and desulphurising of Cr-containing pig iron by oxidizing refining comprises maintaining the C concentration of the molten metal at not less than 2%, contracting it with a slag comprising at least 30-70% of one of fluorides and chlorides of alkaline earth metals, 1.5-30% of at least one of oxides, hydroxides and carbonate of sodium or potassium 5-50% of at least one of oxides of iron and nickel, and up to 40% of an oxide or carbonate of an alkaline earth metal, while controlling oxidation of Cr. <IMAGE>
Patent GB-2054172-A (GB)
Title: A Method and Apparatus for Measuring Relative Microwave Attenuation
IPC: G01R27/28
Filed: 1980-06-25
Abstract: In order to measure the relative attenuation of microwave radiation provided between settings of an attenuator, the radiation from a microwave source (1) is divided to provide a test signal (ST) and a reference signal (SR), the test signal being directed to the attenuator (Ax). One of these two signals is pulse modulated by means of a modulator (19) to change the signal power, and the mean power of each signal is detected and compared. The resultant powers are balanced by change of the modulation, and the pulse modulation applied at balance for each of the attenuator settings, is used for a measure of the relative attenuation. The modulator (19) is preferably arranged in the test signal path to follow the attenuator (Ax) under test. The modulator (19) is preferably provided by two or more series connected PIN diodes (35A, 35B). The mean powers may be detected by thin film thermocouple detectors (DR, DT). For optimum accuracy the detectors (DR, DT) and the diodes (35A, 35B) are maintained at steady average temperature. <IMAGE>
Patent GB-2055822-A (GB)
Title: Carboxylic ester compounds for use as insecticides
IPC: C07C69/747
Filed: 1980-07-17
Abstract: Novel carboxylic esters of formula (I),   <IMAGE> wherein X is a chlorine, bromine or fluorine atom, are effective in the control of insects. They can be produced by reacting a carboxylic acid of formula (II),   <IMAGE> or a reactive derivative thereof, with an alcohol or a reactive derivative of the formula (III),   <IMAGE> wherein A is a hydroxyl group or a tosyloxy group.
Patent GB-2081758-A (GB)
Title: Regulating Apparatus for Automatically Controlling the Evenness of the Linear Density of a Sliver
IPC: D01H5/42
Filed: 1980-08-12
Abstract: A regulating apparatus for automatically controlling the linear density of a sliver comprises a pulse train forming means (18), the number of pulses in the pulse trains depending on the linear density of the sliver (4) fed to a drafting assembly, a disc (14) having transparent and opaque areas, kinematically coupled to the sliver driving means and positioned between a light source (12) and a photoelectric transducer (13). The regulating apparatus further comprises a pulse counter (25) having its counting input (26) connected to the output of the pulse train forming means (18) and its output connected via storage devices (29) to the control means (8) for adjusting the speed of the delivery rollers (6) of the drafting assembly. The output of the photoelectric transducer (13) is connected to the synchronizing input of the pulse train forming means (18) and to the control inputs (31) of the storage devices (29) to delay the application of a signal from the output of the counter (25) to the control means (8) for a time period corresponding to the duration of the pulse at the output of the photoelectric transducer (13). The invention may be used in carding, combing and drawing textile machines. <IMAGE>
Patent GB-2082695-A (GB)
Title: Torque limiting clutch
IPC: F16D7/10
Filed: 1980-12-31
Abstract: A torque limiting clutch comprises an inner member (16) carrying a pair of sliders (26) biased by spring-loaded plungers (36) and weak springs (52) to operative positions in which their ends (46) engage in recesses (9) in an outer member (7) to transmit torque between the members. On torque overload, the sliders are cammed radially inwards to inoperative positions in which only the springs (52) provide a resulting bias, so that the sliders can only re-engage the member (7) when the relative angular speed of the two members (7, 16) falls to a low value. In their inoperative positions, the sliders engage member (7) via rollers (50). <IMAGE>
Patent GB-2068297-A (GB)
Title: Print bricks
IPC: A63H33/30
Filed: 1980-05-15
Abstract: Blocks in the shape of letters of the alphabet are arranged in order in similarly shaped recesses of a tray and protrude sufficiently to be easily grasped, for example by a child. Each block has an absorbent base so that when dipped in powder colour it can produce a print. <IMAGE>
Patent GB-2071730-A (GB)
Title: Improvements in or relating to cavity closures
IPC: E06B1/00
Filed: 1981-01-29
Abstract: This invention relates to cavity closures for closing the cavity 3 of a cavity wall 4, 5 and which are particularly suitable for use in connection with replacement frames 6 of doors and windows. The closure consists of a first extrusion (1) which reduces heat-transfer through the closure, and a second extrusion (2) which serves to clip the first extrusion to the replacement window or door frame. The first extrusion may reduce heat-transfer solely because it is constructed to form a plurality of air- spaces, or it may be formed with means for supporting insulating material such as a plastics foam. The shape of the second extrusion will depend on the type of window or door frame with which it is to be used, and various embodiments are described which may be fitted to wooden, steel or aluminium frames. <IMAGE>