baber/WOPTO huggingface dataset:
Patent GB-1451961-A (GB)
Title: Apparatus for detecting attenuation or obstruction of a beam of  electromagnetic radiation
IPC: G01N21/53
Filed: 1973-10-17
Abstract: 1451961 Fog or obstruction detection PILKINGTON P E Ltd 3 Oct 1974 [17 Oct 1973] 48286/73 Heading G1A In a fog or obstruction detecting apparatus pulsed radiation from an Arsenide light emitting diode 1 is split by a polarization selective beam splitter into a reference beam B 1 and an active beam B2 which have polarizations that are orthogonal to one another. The beams B1 and B2 pass through respective quarter wave plates 16 and 17 before travelling over different path lengths to retro-reflectors 7 and 14. The beams are thus reflected back and received combined on a photodetector 9. The apparatus is designed so that the reference and active beam are about 180 degrees out of phase with respect to one another. The detector's circuit is tuned to a frequency f i  f being the modulation frequency of the source. When there is no obstruction in the active beam, pulses of a frequency 2f are received, whereas when the active beam is obstructed or attenuated (by fog &c.), pulses of a frequency f appear. Since the photo-detector 9 is connected via an amplifier 19 to a filter 20 (responsive to the frequency f), the presence of an obstruction can be detected. The filter 20 output is used to operate an alarm 21.
Patent GB-1448019-A (GB)
Title: Method of killing disease-causing bacilli and reducing the smell from fluids containing organic substances and means for carrying this method into effect
IPC: A61L11/00
Filed: 1973-10-16
Abstract: 1448019 Surface-aerating ERICH PETERS & CO METALLWAREN STANZ-U DREHTEILE APPARATEBAU WERKZEUBAU 16 Oct 1973 [17 Oct 1972 28 Aug 1973] 48323/73 Heading B1C [Also in Division C1] The surface foam formed when an oxygencontaining gas (e.g. air) is fed into liquid manure, liquid excrement or other fluid requiring biological composting and disinfection, is itself re-fed into the liquid in admixture with the oxygen-containing gas, through a common opening above the fluid surface. In Fig. 3, foam 3' and air are sucked into opening 9' of pipe 4' and injected horizontally into the liquid 2' by impeller 5' rotated by motor 17' via shaft 16' which bears vertically displaceable foam slicer 21'. The shaft 16' may be obviated either by locating the motor beneath the impeller as in Fig. 1 (not shown) or by connecting the motor to the pipe so that the latter itself rotates as in Fig. 4 (not shown). In Fig. 5 (not shown) both the pipe and the shaft rotate but the pipe is shorter than the shaft and is vertically displaceable therealong in accordance with the fluid level, and the shaft carries a propeller at its lower end. In Fig. 6 (not shown) the entire motor-shaft-pipe-impeller assembly is supported by floats, and the pipe is a truncated cone dipping only a short way beneath the surface of the fluid; the shaft extends below the pipe and terminates in a propeller.
Patent GB-485988-A (GB)
Abstract: 485,988. Shoots. QUANJER, J. H. Nov. 15, 1937, No. 31367. Convention date, Nov. 23,1936. [Class 78 (i)] A device for feeding fuel to and adapted alternatively for receiving ash, slags, &c. from a furnace comprises a shoot having two side walls 2, a sloping bottom 3 and hinged flap 8. When the shoot is arranged opposite the fuel feeding opening 5, a projecting lip 4 engages with the lower edge of the opening and a support 7 holds it in position. When the shoot is receiving ashes from the opening 12, the shoot is arranged as shown with the flap 8 forming a closure at the outer end, such flap being secured by hooks 10 which engage with pins 11.
Patent GB-1027555-A (GB)
Title: Improvements in the prevention of knot slippage in synthetic linear polyamide fibers
IPC: D06M15/643
Filed: 1963-12-10
Abstract: Knots tied in twine or netting made from fibres composed of a polyamide in which the carbonamide groups are separated by a chain of at least two carbon atoms and which is produced by heating a mixture of a dicarboxylic acid and a diamine or by heating a monoaminomonocarboxylic acid, e.g. polyhexamethylene adipamide or polycaproloctaim, are prevented from slippage by treating the knots with a mixture of colloidal silica and an aminosilane.  The twine or netting having knots tied therein may be treated in an aqueous bath containing 0.5-50% by weight of the aminosilane, e.g. gamma aminopropyl triethoxy silane and delta aminobutyl methyl diethoxy silane, and 1-50% by weight of collidal silica and having a pH value of higher than 7, for 1-15 minutes, removed from the bath and dried at 120 DEG -300 DEG F. for 1-10 minutes.
Patent GB-1304800-A (GB)
IPC: F16C17/03
Filed: 1971-10-20
Abstract: 1304800 Bearings WESTINGHOUSE ELECTRIC CORP 20 Oct 1971 [12 Nov 1970] 48790/71 Heading F2A A journal bearing has a shell 14 containing a plurality of pivoted bearing pads 16, 17, 18, 19, there being at least two of the pads in the lower half of the shell each of which comprises two portions one 22 being nearer the shell and the other 23 including the bearing surface, the portion including the surface having a higher thermal conductivity than the other portion, there being means for circulating coolant from an external source 26 through channels 24 in the lower pads so as to bring the coolant into contact with the portions including the bearing surface. The portion of the pads nearer the shell may be of steel and the portion including the bearing surface may be copper. In the upper half of the shell there may be bearing pads or a bearing sleeve. The coolant may be the lubricating oil.
Patent GB-971441-A (GB)
Title: Proximity inductor heating and quenching fixture
IPC: C21D1/10
Filed: 1962-12-31
Abstract: 971,441. Electric heating for treatment of metals. CATERPILLAR TRACTOR CO. Dec. 31, 1962 [Jan. 19, 1962], No. 49134/62. Heading H5H. Apparatus for heating specified portions of an arcuate metal workpiece includes a pair of arcuate conductors disposed concentric to but spaced from the workpiece, and such that they have a pair of adjacent and a pair of remote ends; a high-frequency source connected between the adjacent ends; an electrode on each of the remote ends; and means for urging the electrodes into contact with the workpiece, in which condition the current flowing in either conductor is in opposite sense to that flowing in the adjacent region of the workpiece, whereby the current in the workpiece is concentrated at its surface. Hollow fluid-cooled conductors 24 and 25, each extending through an arc of about 90 degrees, are, at their adjacent ends, rigidly secured to brackets 27, insulated from one another by member 44, and connected to highfrequency (10 to 100 kc/s.) source 43, the opposite ends of the conductors being provided with electrodes 38 and 39, which are each urgable outwards by pneumatic plungers 31 to contact an internal tooth of the gear-wheel 15, the correct positioning of which for heat treatment is ensured by the engagement of the radially adjustable members 23a between teeth of the wheel. The electric circuit-through one conductor to its electrode, through the gearwheel to the other electrode, and back through the other conductor-is such that the current in the wheel is always opposite in sense to that in the adjacent conductor. The wheel is supported by an annular platform in the quench tank 22, quench medium being directed, through orifices in the platform, at each tooth of the treated region of the wheel. Replacement electrodes of a different thickness permit adjustment of the spacing between the conductors and the wheel; reference is made to the heat treatment of the whole of the wheel periphery at once, and to the treatment of the outer rather than the inner periphery.
Patent GB-1304259-A (GB)
IPC: C04B35/18
Filed: 1970-10-16
Abstract: 1304259 Production of synthetic indialith RHEINISCHE KALKSTEINWERKE GmbH 16 Oct 1970 [18 Oct 1969] 49310/70 Heading C1A Synthetic indialith (2MgO. 2Al 2 O 3 . 5SiO 2 ) is produced by heating magnesia, kaolin and quartz hydrothermally at 170‹ to 230‹ C. in the presence of water and in proportions by weight corresponding to the composition of indialith; the intermediate product formed being dehydrated at a temperature above 850‹ C. and then calcined into indialith preferably at a temperature above 1100‹C.
Patent GB-1094009-A (GB)
Title: Improvements in or relating to hydraulic reciprocating pumps or motors
IPC: F01B3/00
Filed: 1965-11-22
Abstract: 1,094,009. Reciprocating pumps and motors. BUCHER-GUYER MASCHINENFABRIK A.G. Nov. 22, 1965 [Nov. 23, 1964], No. 49523/65. Heading F1A. In a swash-plate pump or motor having pistons 3 bearing on the swash-plate 6 through slippers 11, the slippers are held together as a unit by a cage 13 engaging grooves 12 in the slippers. The cage may comprise one or two concentric flexible rings, Fig. 3 (not shown), or an annulus with part-circular cut on to receiving the slippers, Fig. 2 (not shown). In another embodiment Fig. 4 (not shown), the cage is fixed to the swashplate. The cage may be of metal or elastomeric material.
Patent GB-1261278-A (GB)
Title: Improvements in or relating to pulse generating circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/55
Filed: 1969-10-09
Abstract: 1,261,278. Pulse generating circuits. ENGLISH ELECTRIC VALVE CO. Ltd. 25 Aug., 1970 [9 Oct., 1969], No. 49575/69. Heading H3P. In a pulse generator of the type in which a pulse-forming network PFN or capacitor is alternately charged via a first triggerable discharge device T 2  and discharged via a second triggerable discharge device T 1 , spurious triggering of T 2  when T 1  is triggered is prevented by a capacitance C<SP>1</SP> which tends to maintain the anode and cathode of T 2  at the same potential. As described, the PFN is charged via inductor L by triggering T 2  which becomes non-conductive when its anode/cathode potentials become reversed. The PFN is discharged through a klystron or magnetron load R by triggering T 1 . In the absence of capacitor C<SP>1</SP>, the resulting voltage drop at the cathode of T 2  may re-trigger T 2  if its anode/grid capacitance is sufficient, thereby short circuiting the supply.
Patent GB-1526069-A (GB)
Title: Endoscope in particular a laryngoscope or epipharyngoscop
IPC: A61B1/267
Filed: 1975-12-04
Abstract: 1526069 Endoscopes R WOLF GmbH 4 Dec 1975 [6 Dec 1974] 49894/75 Heading A5R [Also in Division C2] An endoscope comprises a barrel 1 through which passes a fibre light guide 8, and an optical system in a viewing tube 2 for viewing an illuminatable area, which system includes a magnifying lens 10 axially adjustable at a proximal end region (right side of Fig. as shown) of the endoscope between two positions (a), (b) Fig. 5 (not shown) either side of the focus of the system. Light from a source (not shown) passes via a connector 7 and the light guide 8 with exit surfaces 9, to illuminate the area and image-forming light passes through a viewing window 3 which may be a separate window or the objective lens of the system, either side of which are the surfaces 9, through the optical system to an eyepiece lens 5. The adjustable axial position of the magnifying lens 10 produces high magnification at a small viewing angle for detailed viewing, or vice versa. The lens 10 is held in a tubular key 12 which is guided in the axial direction, 14, of the barrel 1 and surrounded by a coaxial, axially fixed setting tube 15 axially rotatable by a lever 16, a setting pin 17 projecting from member 12 or 15 and engaging an oblique slot in member 15 or 12. When the tube 15 is rotated the lens 10 moves axially. Clouding of the glass viewing window 3 may be avoided by continual cleaning with air from a source connected to a connection 20. Alternatively or additionally the window may be heated by an electric conductor 23 connected to a variable current source. The conductor may be applied to the inwardly or outwardly directed window face or embedded in the window or it may be situated on or in an annular insulating body surrounding the window, or it may cover all or an annular part of the window as a transparent, vapour-deposited metal layer or as a conductive lacquer. The exit faces 9 may be heated by a separate conductor. The light guide may terminate at the proximal end of the endoscope and the remainder be connected by known coupling. The optical lens system may be replaced by a fibre system with a flexible barrel, the fibre having a lens replacing lens 11 shown. The magnifying lens may be compound and/or there may be a group of lenses. A motor or an external magnetic field may be used to move the magnifying lens.
Patent GB-1448261-A (GB)
Title: Agent for desulphurising crude iron metls
IPC: C21C1/02
Filed: 1973-10-26
Abstract: 1448261 Desulphurizing agent SUDDEUTSCHE KALKSTICKSTOFF-WERKE AG 26 Oct 1973 [27 Oct 1972 (2) 22 Aug 1973] 49939/73 Heading C7D A desulphurizing agent for crude iron melts comprises calcium carbide and/or calcium cyanamide together with at least one solid material which splits off bound water and/or hydrogen at the temperature of the melt. Examples of suitable solid materials include hydrides of alkali metals and alkaline earth metals, polyolefines, urea, guanidine, biguanide, dicyandiamide, melamine, which split off hydrogen; and Ca(OH)2, alkaline earth borates containing bound water, e.g. colemanite and pandermite, aluminium hydroxide, kaolin, carbohydrates, phthalic acid, glycollic acid, polyalcohols and polymers containing hydrogen and oxygen, which split off water. Many examples are given of suitable compositions, which may also include carbon-containing compounds and deoxidation agents, e.g. Al, C, Ca-Si. The agent is blown into the melt (e.g. in a torpedo) in a stream of air by means of a lance.
Patent GB-1163752-A (GB)
Title: Improvements in and relating to Axial-Flow Fluid Machines of the Rotary kind
Inventor: WALSHAW DENNIS JAMES
IPC: F01D5/02
Filed: 1965-11-25
Abstract: 1,163,752. Axial-flow fans. EDGAR ALLEN AEREX Ltd. Nov. 17, 1966 [Nov. 25, 1965], No. 50152/65. Heading F1C. A blade for a rotary axial-flow fluid machine, e. g. an axial-flow fan, has its working portion die cast or moulded over the head of a fixing member, e.g. a bolt or a hexagonal-headed set-screw 11, Fig. 5. The working portion may be of aluminium or other light metal or alloy and the fixing member may be of high tensile steel. The fixing member has a greater rigidity than the working portion. The blade is secured on a hub by a nut and locking means (not shown). A circular seat 15 has three angularly-spaced kidney-shaped lands 17 thereon which frictionally engage a plane base of a recess 23 in the hub to prevent rotation of the blade, and to prevent the fixing member from receiving bending loads so that the loading on the fixing member is substantially wholly tensile. This latter effect is assisted by the engagement of a boss 16 in a bore 24. The circular seat may have several notches (18, Fig. 3A, not shown), around part of its periphery, an appropriate one of which registers with a rib 26 on the hub to set the blade pitch. One side of the hub may be covered by a domed fairing (not shown).
Patent GB-1443973-A (GB)
Title: Gas spearation-
IPC: C01B21/04
Filed: 1973-10-30
Abstract: 1443973 Separating gases with selective absorbents BOC INTERNATIONAL Ltd 22 Oct 1974 [30 Oct 1973 50384/73 Addition to 1437344 Heading B1L A preferentially absonbable component is recovered from a gas mixture in a system which comprises at least three beds of selective absorbent each of which alternatively undergoes a cycle of gas feed, purge with enriched gas and evacuation of desired component such that at any instant all three stages are in progress, depleted or waste gas being withdrawn from the bed undergoing the purge wherein before the end of the purge step withdrawal of waste gas is stopped from the bed being purged with enriched gas and simultaneously begun from the bed receiving feed gas. Recovery of nitrogen from air is described.
Patent GB-1182799-A (GB)
Title: Thermionic Converter Assemblies.
Inventor: LEVEDAHL WILLIAM JOHN
IPC: G21H1/10
Filed: 1967-11-06
Abstract: 1,182,799. Thermionic generators. MARTIN MARIETTA CORP. 6 Nov., 1967 [7 Nov., 1966], No. 50390/67. Heading H1D. [Also in Division F4] In a radioisotope-powered thermionic diode converter 12 incorporating a "heat pipe" arrangement for removal of waste heat therefrom, an electrical potential difference is set up between spaced emitter and collector surfaces 34, 32 respectively as a result of electron flow therebetween. An annular glass ring 44 electrically isolates the emitter from the collector and the space therebetween is filled with cesium vapour or other ionizable gas. The heat pipe comprises an annular cavity. 56 having a heat rejecting surface 28 and a heat receiving surface viz. collector 32 and contains a condensable vapour such as water, silver, lithium or sodium and capillary means for transporting the condensed vapour from the cooler heat rejecting surface 28 back to the heat input zone of the pipe viz the collector 32 for revaporization. A plurality of grooves 64 formed over the inner surface of the cavity 56 by spaced short radial fin sections 66 separated by circumferential grooves 68 constitute the capillary means. Normally several thermionic diodes are incorporated within a hemispherical converter module (10, Fig. 1, not shown) which has an outer stainless steel shell 20. One common radioisotope source can then be employed to power all the diodes if required. An electrically insulating oxide layer 26, e.g. aluminium oxide, of high thermal conductivity is interposed between the shell 20 and the heat radiating surface 28. When operating at low heat transfer rates an inert non-condensable gas such as hydrogen, oxygen, nitrogen or noble gas may additionally be introduced into the heat pipe cavity (Fig. 4, not shown) to blanket off part of the heat radiating surface. In a modification (Fig. 5, not shown) a T-shaped heat pipe is used. In an alternative embodiment (Fig. 6, not shown) the heat pipe comprises an annular cavity of "T-shape" cross-section concentrically surrounding the radioisotope source.
Patent GB-1246684-A (GB)
Title: Means for dynamic balancing and devices for indicating unbalance values
IPC: G01M1/22
Filed: 1968-10-24
Abstract: 1,246,684. Dynamic balancing. W. & T. AVERY Ltd. Oct. 24, 1968 [March 16, 1968], No.50451/68. Headings G1N and G1X. In a method of dynamic balancing, the out-ofbalance force in one or more planes is/are represented, and the correction procedure monitored, on the screen 50 of a cathode ray tube 115. The positions of the centre 30 of a light circle 10 (single plane) or light points 20, 22 (multi-plane) relative to the origin of axes 15 represent the out-of-balance force(s) in magnitude and direction. The force component measurements, applied as potentials at 100, 101 for one plane and 160, 161 for a second plane, are stored by units 116, 117 to maintain the display after a measuring run. A linear light trace 12 initially originating at said origin represents the angle between a compensating machine tool and a reference point on the test body. After the measuring run the test body is rotated until the trace 12 passes through the point 30 or a selected one of points 20, 22, the tool then being correctly positioned relative to the test body for compensating the out-of-balance force in the plane corresponding to that point. As the machine tool is applied to the test body, the trace 12 is controlled to fade from the origin until, when compensation is complete, the trace has faded out to the point 20, 22, or 30, Fig.2c (not shown). In multi-plane balancing, the various light spots are identified by differently oriented semi-circles as at 21, 23. Summing and deflection amplifiers 108, 109 supply control potentials to the deflection plates 137, 136 of the C.R.T. 115, the inputs to the amplifiers being controlled by an electronic cyclic switch 105 to produce the required display. Sinusoidal and cosinusoidal A. C. voltages at 113, 114 generate the semi-circles 21, 23 and the circle 10. D.C. potentials at 140, 141 are proportional to the advancement of the machine tool, corrected according to the angular position of the test body. D.C. potentials representing the sine and cosine of the angular position of the test body are generated at 134 and applied to integrators 130. During the measuring run a switch 155 is open and a three position switch 150 is in the position shown, Fig. 1, only the circle 10 or spots 20, 22 and semi-circles 21, 23, together with a spot 13 at the origin, being displayed. For setting the test body for compensation in one plane, the switch 155 is closed and the switch 150 moved to a second position, to add the trace 12 to the display and delete the spot 22. For balancing in a second plane, switch 150 has a third position, to add spot 22 and delete spot 20.
Patent GB-1085246-A (GB)
Title: Improvements in or relating to percussion fuzes for shells
IPC: F42C15/184
Filed: 1964-12-11
Abstract: 1,085,246. Ammunition fuzes. ETABLISSEMENT SALGAD. Dec.11, 1964 [Dec. 14, 1963], No. 50641/64. Heading F3A. An impact-operated percussion fuze, in which arming is delayed by a clockwork mechanism, has a casing comprising a body 2 and a nose 4 housing a firing-pin 8, a balance wheel 27 and a primer carrier 10. The carrier 10 is slidable in a transverse bore (9), Fig. 2 (not shown), and during transport is held against the thrust of springs (12, 13) by a bolt 30, spring-supported and engaged in a recess 34 of the carrier, so that the primer (11) is out of alignment with the pin 8. Rack teeth 15 on one side of the carrier engage a toothed shaft 16 carrying a gear 21 which, through gearing 26, is controlled by the balance wheel 27, which is locked by an extension 31 of the bolt 30. In the unarmed condition, the pin 8 is aligned with a blind bore 18 in the carrier, below which is a primer 19 and a detonator 20. A safety pin 39, removed by hand before launching a missile fitted with the fuze, extends through a bore 40 below the bolt 30, to hold the bolt in the locking position. Carrier 10 carries a pin 28, which projects into a bore leading to the periphery of body 2 and, when the carrier is in the armed position, the pin projects from the body, thus indicating the position of the carrier 10. By means of pin 28 the carrier can be returned to its original position. After removal of safety pin 39 and discharge of the missile, due to inertia, bolt 30 sets back, thus freeing the balance wheel 27 and the carrier 10. Springs (12, 13) then displace the carrier until primer (11) is aligned with the firing pin 8, the movement being braked by the clockwork mechanism to delay arming until the missile has travelled some distance from the gun. A spring 35 snaps over the conical end of the bolt 30 to secure the bolt in the armed position.
Patent GB-1389319-A (GB)
Title: Data processing system
IPC: G06F11/26
Filed: 1972-11-07
Abstract: 1389319 Digital computers; diagnostic programs INTERNATIONAL BUSINESS MACHINES CORP 7 Nov 1972 [15 Nov 1971] 51291/72 Heading G4A A data processing apparatus is programmed to identify groups of potentially detectable failures from a list of possible failures in a logic circuit. A group of logic circuit descriptions (including definitions of circuit inputs, outputs, logic block values, failure counts and time of last block value change), and a sequence 112 of test patterns to be performed on the logic circuit are entered in a computer and a good machine simulation 122 is effected with error sensitivity propagation to produce an all events trace 124. The trace 124 is then operated on in an error sensitivity propagation back trace 126 in conjunction with a failure definition list 115 to produce a selected failure list output 121. This identifies groups of potentially detectable failures for each test pattern in a series of test patterns and omits the potentially undetectable failures, thus reducing the running time of fault simulation of system test patterns.