baber/WOPTO huggingface dataset:
Patent GB-1307695-A (GB)
Title: Air flotation turner bars
IPC: B65H23/24
Filed: 1970-08-19
Abstract: 1307695 Guiding webs ILFORD Ltd 11 Aug 1971 [19 Aug 1970] 39987/70 Heading B8R An air flotation turner bar 10 for altering the direction of travel of a moving web 11 comprises a cylindrical hollow bar 10 provided with respective leading and trailing guiding edge pieces 14, 15 which, together with the curved surface of the bar, define air gaps 16, 17 through which pressurized air, passing from the interior of the bar through arrays of holes 12, 13, can emerge in a direction tangential to the surface of the bar, thereby creating an air cushion for the web 11 passing over the bar. In a modification, Figs. 3 and 4 (not shown), the bar, which may be solid, is provided with a partly flattened surface to which is attached an integral structure constituted by a tangential leading edge piece (22), a tangential trailing edge piece (23) and an air duct (24).
Patent GB-1308463-A (GB)
Title: Radiometer apparatus
IPC: G01J5/62
Filed: 1969-03-06
Abstract: 1308463 Detecting clear air turbulence R COACKLEY M L REYNOLDS and C D RODGERS 6 March 1970 [6 March 1969] 11868/69 Heading G1A Clear air turbulence is detected by an aircraftmounted radio-meter which measures and compares the intensities of radiation received from a number of different narrow wavelength regions within an absorption band of a given atmospheric component. Incident radiation from the atmosphere passes through a convex infrared filter 27 and is deflected by a plane mirror 29 to be focused through a field stop 40 onto a field lens 41. The same focusing effect may be achieved by using a plane filter 27 and a concave mirror 29. A further lens 43 focusses the radiation onto a detector 45, which is cooled by a cryostat 47 and may be a mercury cadmium telluride detector or a copper doped germanium detector. Also located in the light path are a motor driven filter wheel 53 containing seven infrared filters and a rotatable chopper 49. To maintain a constant direction viewing path, unaffected by yawing of the aircraft, the orientation of the mirror 29 and bearing- mounted turret 17 is controlled by gyroscopes 37, 33 respectively. Also, the turret may be rotated to view areas on either side of the direct flight path. Each filter 55 isolates a different narrow region of the radiation passed by filter 27, and each said region has a different absorption co-efficient in the ratio 1:2:4:8:16:32:N100. The most absorbing filter effectively examines the air temperature adjacent the aircraft, while the least absorbing filter monitors the temperature a large distance ahead of the aircraft. An accurate determination of the distance ahead of clear air turbulence conditions involves the use of four different filters and the generation of the range function R = S 1 -S 2 /S 3 -S 4 , where S 1 -S 4  are the detector outputs corresponding to four different filters, in ascending order of absorption co-efficient. The choice of the four filters to be chosen out of the seven available depends on the height of the aircraft. In generating the range function each of the four required filters is placed in turn in the radiation path by a motor logic unit (79, Fig.9, (not shown). The amplified detector output is passed through a synchronous filter (63) to reduce noise and then through a phase sensitive detector (67) operated in synchronism with the chopper motor. The PSD output is supplied to an integrator (69) whose output may be recorded on a tape recorder. This procedure is repeated for each filter, and the required range function is generated using ancillary integrators and amplifiers. The four measurements through different filters may be made simultaneously, using one photo-cell associated with each filter.
Patent GB-1311098-A (GB)
Title: Dynamo electric machines
IPC: H02K3/18
Filed: 1969-06-13
Abstract: 1311098 Dynamo-electric machines CAV Ltd 1 June 1970 [13 June 1969] 30116/69 Heading H2A In a dynamo-electric machine, e.g. an I.C.E. series wound starter motor, comprising an armature 12 having a commutator 13, and a field structure 11 having a winding through which current can be passed to polarize four polepieces 10, the winding is formed as a pair of equal length coils 17, 18 each so deformed as to define four straight portions disposed between respective adjacent polepieces 10 one of which portions includes the coil start and finish, and the coils are so mutually positioned that the start and finish of one coil is disposed 180 degrees with respect to those of the other. This avoids the magnetic unbalance, which would otherwise obtain, with a single winding coil (15), Fig. 2, due to both the start and finish passing between only one pair of polepieces (10a). Each coil may have more than the one turn shown, and the turns may be connected mutually in series or in parallel.
Patent GB-1329156-A (GB)
Title: Fuel system for a gas turbine engine
IPC: F02C7/22
Filed: 1970-12-19
Abstract: 1329156 Fluid regulation DEFENCE SECRETARY OF STATE FOR 19 Dec 1970 60420/70 Heading G3H [Also in Division F1] The invention relates to a fuel system for a gas turbine engine which comprises a fuel container adapted to receive excess fuel from the main fuel supply line. The fuel system shown comprises a fuel pump 11 and a duct 10 leading to the fuel burners, also a drainage tank 7 into which fuel drains through inlet 2 and from which fuel is transferred through transfer duct 14 and line 12 to the inlet of the fuel pump 11 when the fuel in the drainage tank reaches a certain level. The line 12 leads from the discharge side of the pump 11 to the suction side thereof and an ejector pump 13 is disposed therein. HP fuel from the line 12 passes through lines 31, 38 to the inlets 29, 36 of fluidic devices 25, 32 respectively. The drainage tank 7 is divided into two compartments 3, 4 by a division 5 and also comprises a sump 8. The compartments 3, 4 are connected by a syphon 6. The transfer duct 14 extends from the sump 8 and comprises a valve 19 which is normally held in the closed position by a spring-loaded piston 20 but which is opened by pressure fluid in line 24 acting on the piston when the fuel level in the tank attains a predetermined level. The level of the fuel is sensed by a fluidic device 25 which is connected to the tank through ducts 27, 28 and comprises an aligned inlet 29 and outlet 30 such that when the level is low, pressure fluid flows from line 31 through inlet 29, through outlet 30 and so to the inlet 39 of the fluidic device 32. HP fluid supplied through line 38 to the inlet 36 of the device 32 is thus deflected by the fluid jet discharging through the inlet 39 so that no fluid passes to the outlet 37 and thus the valve 19 remains in the closed position. When the fuel in the drainage tank reaches a certain level however the passage of HP fluid from inlet 29 to the outlet 30 of the fluidic device 25 is interrupted so that no fluid passes to line 33 and no fluid discharges through inlet 39 of the fluidic device 32. Thus HP fluid entering the fluidic device 32 through inlet 36 passes through the aligned outlet 37 to the line 24 and so to the cylinder 23 causing the piston 20 to move so opening the valve 19. Thus fuel now passes through the transfer duct 14 from the sump 8 to the line 12 by the action of the ejector pump 13.
Patent GB-1330702-A (GB)
Title: Method of and apparatus for measuring dimensional changes
IPC: G01B7/00
Filed: 1970-06-25
Abstract: 1330702 Measuring dimensions DEFENCE SECRETARY OF STATE FOR 23 June 1971 [25 June 1970] 30900/70 Heading G4H Changes in the dimension of an object (10, Fig. 1, not shown) are measured by moving in steps a pressure sensor 20 (Fig. 2) until a bridge 38 is balanced, the steps being simultaneously counted in a counter 56. As described the bridge output after amplification, is fed to three threshold detectors 44, 46, 48. When the level of the highest detector is exceeded, gate 72 is enabled so that high frequency clock pulses are applied (1) to increment the counter 56 and (2) to drive in a forward direction a reversible stepping motor 30 moving the sensor 20. When the amplifier output falls between the levels of detectors 46 and 48, gate 64 is enabled so that low frequency pulses are applied to the counter and motor. The resolution of the system is represented by the difference between the levels of detectors 44 and 46. If the output drops below the level of detector 44 gate 52 is enabled to supply high frequency pulses to decrement the counter and drive the motor in the reverse direction. The count may be displayed. The apparatus may be used for measuring changes in the diameter of a cylindrical surface of a workpiece supported in a vertical spindle lathe.
Patent GB-1331227-A (GB)
Title: Samplers
IPC: G01N1/20
Filed: 1970-12-04
Abstract: 1331227 Sampling particulate material IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Dec 1970 [1 Dec 1969] 58601/69 Heading B8N Apparatus for sampling particulate material comprises an inclined duet 25 through which the material flows, a funnel 24 extending into an opening in the duct, and a shutter 23, preferably curved (as illustrated), movable between a position in which the shutter prevents a material sample passing into the funnel and a position in which an aperture 27 in the shutter coincides with the funnel to permit a material sample to pass into the funnel. The apparatus may include means whereby a sample is taken at preselected regular intervals, and the sampling period may be 2 seconds.
Patent GB-1332522-A (GB)
Title: Pulse density demodulator
IPC: H04B1/10
Filed: 1971-01-05
Abstract: 1332522 Interference suppression SANDERS ASSOCIATES Inc 5 Jan 1971 [6 Jan 1970] 527/71 Heading H4L A receiver for pulse bursts of radio-frequency energy is provided with means for detecting such signals in the presence of interference pulses by measuring the pulse rate increase when a pulse burst is received. As shown, the received signals are demodulated at 14, Fig. 3A, 24 being the wanted bursts. The resulting pulses are standardized by a pulse regenerator 16, Fig. 3B, and supplied to a pulse averaging circuit 18. The output of circuit 18, Fig. 3C, corresponds to the number of pulses received within the averaging interval, and is passed through a high pass filter 20 which detects the relatively rapid changes in the average pulse rate when the wanted signal is present, Fig. 3D. The high pass filter may be a differential threshold amplifier, Fig. 2 (not shown) in which one input is taken direct from circuit 18 and the other is taken via a low pass filter so that the output contains only the high frequency components.
Patent GB-1333581-A (GB)
Title: Process for the preparation of substituted vinyl esters of acids of phosphorus
IPC: C07F9/42
Filed: 1970-07-27
Abstract: 1333581 Vinyl derivatives of acids of phosphorus SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 23 July 1971 [27 July 1970] 36282/70 Heading C2P Compounds of the Formula III where each Hal, which may be the same or different, is chlorine or bromine, Y is Hal, C 1-5  alkyl or C 1-10  alkoxy, X is oxygen or sulphur, R<SP>1</SP> is hydrogen, methyl or optionally substituted phenyl, R<SP>2</SP> is hydrogen, chlorine or bromine and R<SP>3</SP> is chlorine, bromine, C 1-5  alkyl, alpha- (C 1-5  alkyl) benzyloxycarbonyl or mono- or di(C 1-5  alkyl) substituted carbamoyl, are prepared by reacting a compound of Formula I with an enolate anion derived from a compound of Formula II  The compound of formula III may subsequently, with or without isolation from the reaction mixture, be reacted with one or two alcohols or alkoxides thereof or with an alkylene glycol or alkoxide thereof to form a compound of Formula IV  where R<SP>6</SP> is C 1-10  alkoxy and R<SP>7</SP> is Y or R<SP>6</SP> and R<SP>7</SP> together are alkylenedioxy. Both reactions are preferably carried out in the presence of an acid acceptor and in a solvent or diluent. The preparation of the compound of Formula III is preferably carried out at - 20 to + 60 C., and the preparation of the compound of Formula IV at -20 to +50 C.
Patent GB-1339085-A (GB)
Title: Liquid developing composition for the diazotype process
IPC: G03C5/18
Filed: 1971-11-09
Abstract: 1339085 Developing diazotype compositions YAMAMOTO KOGYOSHO K K 9 Nov 1971 51929/71 Heading G2C A liquid developer for exposed two-component diazotype material comprises monoethanolamine and 5-15 wt per cent, based on monoethanolamine, of ethylene diamine. The developer may also contain water, an anti-oxidant, gelatine, polyvinyl alcohol or carboxymethyl cellulose. The developer may be impregnated on to a sheet or pad of material which is absorbent and not attacked by alkali. Heat may be applied during development.
Patent GB-1341853-A (GB)
Title: Process for producing helically wound welded seam pipe
IPC: B21C37/12
Filed: 1971-01-08
Abstract: 1341853 Helically wound tube; welding by fusion STEEL CO OF CANADA Ltd 6 Jan 1972 [8 Jan 1971] 983/71 Headings B3A and B3R A process for producing helically wound pipe comprises continuously delivering skelp to a rolling station, continuously rolling the skelp into helically wound pipe, continuously tackwelding the edges of said skelp together by a gasshielded arc-welding technique, removing the tack-welded pipe to a submerged-arc welding station and converting the tack-weld to a continuous weld. The edges of the skelp are preferably chamfered, forming either a single or double chamfer of about 30 degrees, to provide mating edges prior to the tack-welding. One or two wire MIG (e.g. with argon), MAG (with CO 2 ) or TIG welding or any gas shielded arcwelding technique may be used in which the gas is either an inert gas or CO 2 , or a combination of these, and which employs a consumable or non-consumable electrode. In the particular embodiment a MIG head 18 has a wire feed 20, gas shielding lines 22, water cooling pipe 24, and support 25. The gap between adjacent edges is controlled by a mechanism 26 such that tack-welding occurs at the lowermost point of the pipe 12. Lengths of tack-welded pipe can be severed from one another by conventional methods, e.g. sawing, gas cutting.
Patent GB-1342589-A (GB)
Title: Aromatic polysulphone adhesive compositions
IPC: C09J181/06
Filed: 1970-06-19
Abstract: 1342589 Aromatic polysulphones IMPERIAL CHEMICAL INDUSTRIES Ltd 17 May 1971 [19 June 1970 15 July 1970 5 Feb 1971] 29907/70 34317/70 and 4033/71 Heading C3R [Also in Divisions B2 and B5] A solid surface is coated with, or bonded to another surface by means of, an adhesive composition comprising an aromatic polysulphone whose number average molecular weight is sufficiently high to give a reduced viscosity of at least 0À3 (measured at 25C. on a solution in dimethyl formamide containing 1 g. of polymer in 100 centimetre<SP>3</SP> of solution) and which contains at least 0À2 aromatically bound end hydroxyl groups per 100 polymer repeat units. The preferred polysulphones consist of repeating units of formulµ alone or in combination with each other and/or up to 80% of units of formula The polysulphone may be applied as a solution or suspension by brushing, dipping or spraying, by laminating a film of the polymer to the surface, melt extrusion, powder coating, fluidized bed coating of a preheated solid surface. The process of bonding surfaces together should be carried out at a temperature sufficiently high and with sufficient pressure between the surfaces to allow the aromatic polysulphone to flow. Butt or lap joints may be prepared by heating the surfaces to the softening point of the polymer, inserting a film of the aromatic polysulphone between the surfaces and pressing the two interleaved surfaces together and allowing the bond to cool after optional further heating. Alternatively the surfaces may be interleaved with polysulphone film whilst at ambient temperatures followed by pressing and heating. A similar process of pressing and heating may be used where the surfaces have been coated with polysulphone. Solid surfaces may be bonded together to form a two-ply laminate and any required numbers of such laminates may be similarly bonded together to form a multi-layer laminate having similar or dissimilar layers. The surfaces may be metals, e.g. steel, stainless steel, titanium steel, titanium and aluminium, vitreous surfaces, e.g. glass, ceramic and enamelled materials, natural and synthetic resins, e.g. polyesters, polyolefins, polysulphones, polyimides, polyamides, cellulosic materials, e.g. wood, and carbon fibres. The surfaces may be in the form of a sheet, film, mouldings, powder, extrudate and fibre. The aromatic polysulphone may be blended with other polymeric materials and may also contain fillers, e.g. asbestos, glass, boron or carbon fibres or powdered metals. In an example lap joints were prepared by sandwiching a piece of film of an aromatic polysulphone of Formula IV containing 2À5 hydroxyl groups per 100 polymer repeat units between two surface-cleaned stainless steel plates and the joint made by heating at initially 340 C., then 370 C. after 15 minutes, and finally 380 C. for another 15 minutes.
Patent GB-1349512-A (GB)
Title: Amphibious propulsion member
IPC: B63H1/38
Filed: 1970-04-24
Abstract: 1349512 Propelling ships &c. T A ALLEN 22 July 1971 [24 April 1970] 19941/70 Headings B7A and B7V A boat is propelled by a pair of individually rotatable floats 18, 20 each provided with a multi-start vane 22, 24 (Fig. 2) or groove 43 (Fig. 5) and roller 41 are provided along the vanes or grooves to enable the boat to be propelled on land. Selection of the directions of rotation of the floats determines whether the boat travels forwards, sideways or astern. The floats are of fibreglass and may be filled with expanded polystyrene or polyurethane.
Patent GB-1349839-A (GB)
Title: Locking arrangement for doors or windows
IPC: E05C9/06
Filed: 1970-06-09
Abstract: 1349839 Bolt fastenings J H BIERLICH 8 June 1971 [9 June 1970] 27966/70 Heading E2A A door or window fastening comprises corner bolts 9, 10 and 24, 25 lying in grooves in three sides of the window and operated by a linkage by a rotary handle-operated crank 6. The lower bolts 9, 10 are operated by links 11, 12 connected by pins 15, 16 and 22, 22 to the bolts and to further links 17, 18 connected to the crank. As shown, the links 11, 12 have notches to receive the pins, but holes may be used. Additional links 38, 39 connect the bolts to similar linkages which operate the top bolts 24, 25, or, as shown in Fig. 3, the movement may be transmitted by a flexible cable 59 attached at 61 to the bolt 55.
Patent GB-932370-A (GB)
Title: Friction damper
IPC: F16F7/00
Filed: 1961-10-11
Abstract: 932,370. Friction vibration dampers. LORD MANUFACTURING CO. Oct. 11, 1961 [Nov. 14, 1960], No. 36449/61. Class 108(3). A friction damper comprises an inner plate 1 which has relative translatory movement within an outer housing 2 the walls 6, 7 and 8, 9 of which are spaced from, and parallel to, respectively the opposite faces and the side edges of the plate 1, and tubes 10 of elastomer which have high internal hysteresis and are compressed between a corresponding pair of opposed walls 1, 6, or 1, 7 each tube 10 being restrained from creeping out of the desired transverse position by means of a rigid rod 11 which loosely extends through the tube and is guided, at its ends, in a longitudinal slot 12 in the housing 2. The rods 11 are held in the slots 12 by heads 13 on opposite ends of the rods. In a modification, Fig. 2 the ends of the rods 26 are journalled in guides 20 which are grooved at 19 to slidingly receive the edges of the inner plate 14 and the sliding movement of which is limited by stops 25 at the opposite ends of the side walls of the outer member 15.
Patent ID-26468-A (ID)
Inventor: JOYCE MICHAEL J
IPC: D21F7/08
Filed: 2000-07-05
Abstract: A multiaxial press fabric includes a base fabric and a plurality of layers of staple fiber material attached to the base fabric. The base fabric has at least one layer assembled by spirally winding a woven fabric strip, and takes the form of an endless loop. Because of the spiral winding, the yarns of the woven fabric strip lie in directions different from the machine- and cross-machine directions of the base fabric, giving the base fabric multiaxial characteristics. The woven fabric strip includes, in at least one of its lengthwise and crosswise directions, shaped yarns, which are either hollow yarns or yarns having a non-circular cross section.  <IMAGE>
Patent IL-107670-A (IL)
Title: Process for disintegrating cell dispersions and suspensions
IPC: C12N1/06
Filed: 1993-11-18
Abstract: A process for disintegrating a cell dispersion or a cell suspension by means of ultrasonication treatment in an ultrasonication flow-through cell having an acoustic irradiation vessel for the purpose of obtaining cell constituents, said process comprising the steps of: projecting a sonotrode into the flow- through cell, wherein one-half to two-thirds of the length of the sonotrode is projected into the flow-through cell and acoustic irradiation vessel and immersed in a medium to be sonicated, said vessel having a surface therein directly opposite the sonotrode, wherein an angle of the sonotrode in the acoustic irradiation vessel, relative to said surface, is within the range of from 80.50 to 88.50, wherein the ratio of the extent of immersion of the sonotrode (in mm) to an acoustic irradiation volume (in ml) in the vessel is set to a value within the range from 1:1.1 to 1:20 and wherein the ratio of the extent of immersion of the sonotrode (in mm) to the proportion of solid matter in the medium to be sonicated (in percent by weight) is within the range of from 1:0.02 to 1:2.2; and flowing a cell dispersion or cell suspension through the irradiation vessel and sonicating the cell dispersion or cell suspension.
Patent IL-108454-A (IL)
Title: Valve assembly for venting diecasting moulds
Inventor: WYSER JOHANN
IPC: A41C3/14
Filed: 1994-01-27
Abstract: A valve assembly for venting diecasting moulds comprises a venting channel, a venting valve communicating with the venting channel and having an axially displaceable valve closure member, and an actuating member for operating the venting valve from an open position into a closed position. The actuating member includes a power pick up member exposed to the liquid casting material escaping during the casting operation from a casting chamber provided in the diecasting mould through the venting channel and being axially displaceable under the influence of the kinetic energy transmitted from the liquid casting material to the power pick up member when the liquid casting material hits the power pick up member. The power pick up member is mechanically coupled to the axially displaceable valve closure member and includes an axially displaceable push member having an operating stroke whose length is limited to only a fraction of the length of the stroke performed by the axially displaceable valve closure member when it is driven from its open position to its closed position. The axially displaceable valve closure member freely moves along a path in addition to the operating stroke of the power pick up member. The actuating member further comprises a power transmission member for the transmission of the impact force exerted by the liquid casting material onto the power pick up member to the axially displaceable valve closure member of the venting valve.