baber/WOPTO huggingface dataset:
Patent GB-1265324-A (GB)
IPC: G01F15/14
Filed: 1968-06-04
Abstract: 1,265,324. Delivering measured quantities of liquids. J. F. EARDLEY Ltd. 27 May, 1969 [4 June, 1968], No. 26653/68. Heading B8N. [Also in Divisions A4 and F2] A flow control unit for use with apparatus for dispensing measured quantities of beer &c. comprises conduits drilled in a block of transparent material 16 including an inlet conduit 18 and an outlet conduit 20 and solenoid-operated valves controlling the flow, the valves and conduits all being visible through the block. An electrical control box and a measuring cylinder 42 having a piston 44 which is moved by beer &c. passing into the cylinder 42 behind or in front of it are also included. A conduit 24 is connected to an inlet 46 of the cylinder 42 on one side of the piston and a conduit 26 connects to an inlet on the other side (not shown). When a signal is received from the bar in one condition of the apparatus as shown, valves 30, 32 are open and valves 28, 34 closed (valve 28 closes the path between conduits 18 and 24; 38 is merely a bore plug). The piston then moves from the left to the right as shown and dispenses the beer &c. from the cylinder 42, through the conduit 24 and via valve 32 into the outlet conduit 20, consequently raising a plunger 52 until it abuts a stop. The plunger 52 is magnetic and when raised closes reed switch in a hole 58 which inhibits the change-over of relays connected to the valve solenoids 40. Beer also flows in behind the piston via conduits 18, 26 and valve 30. When the piston finishes its stroke, the plunger 52 drops, causing the reed switch to open, hence closing the valves 30 and 32. For dispensing of a further measure, the valves 28, 34 are open and valves 30, 32 closed and the piston 44 is returned by beer &c. flowing behind it through the conduits 18, 24, and via valve 30 and the measure being dispensed through the conduits 26, 20 via valve 34.
Patent GB-1265417-A (GB)
IPC: G01J5/60
Filed: 1969-08-06
Abstract: 1,265,417. Measuring colour temperature photo-electrically. INSTITUT FUR PLASMAPHYSIK G. m. b. H. Aug. 6, 1969, No.39462/69. Heading G1A. Tne colour temperature of a radiating body is measured photo-electrically by adjusting the intensity of two wavelength ranges equally be means of an attenuating device so that the intensity in one wavelength range is brought to a predetermined value when the intensity in the other wavelength range is measured to provide an indication of colour temperature. In its simplest form a first colour filter is introduced into the beam and an iris diaphragm operated to attenuate the beam until a calibration value is obtained on a meter connected with a photo-electric device. The first filter is removed and a second filter introduced when the meter reading will correspond to colour temperature. In the embodiment shown the radiation beam 1 is focused through a beam-splitting device 7 on to photo-resistors 21, 23 which are connected in bridge networks 25, 39 respectively. Colour filters 13, 15 and baffles 17, 19 are provided in each path 9, 11 respectively. Bridge network 39 has its output connected through amplifier 51 to motor 53 which alters the aperture of iris diaphragm 55 thereby varying the beam intensity so that the resistance of photo-resistor 23 alters to balance the bridge. When the bridge is balanced the colour temperature can be read directly from meter 37 connected to the output of bridge 25. In a modification a single bridge network may be used and is connected to the photo-resistors in turn by means of a changeover switch. In a further modification adjustable diaphragms are used in both the paths 9, 11 and are operated together. The beam-splitting device may be a semi-permeable mirror, a prism, a dichroic mirror or a diffraction screen and the attenuator may comprise a wedge filter or polorizers, rotatable with respect to one another. It is also possible to use an adjustable attenuator in the path 9 and a null reading meter so that the colour temperature is measured by the setting of the attenuator. In practise the components for paths 11, 9 are arranged in tubes 57, 59 respectively, the latter being pivotally mounted so that eye-piece 69 can be used to align the instrument with the body, Fig. 2. In another embodiment, Fig. 4 (not shown), two photo-multipliers are used as detection devices and are connected to a meter and to a control mechanism respectively. The control mechanism consists of an aperture adjusted by a servomotor, and a control circuit which alters the voltage supplied to both photo-multipliers to keep the output of the reference photo-multiplier constant. It is stated that this additional control gives a faster response time.
Patent GB-1288281-A (GB)
IPC: G03C7/00
Filed: 1969-11-26
Abstract: 1288281 Colour photographic development in the presence of an alkoxynaphthamide ILFORD Ltd 17 Nov 1970 [26 Nov 1969] 57799/69 Heading G2C [Also in Division C2] Naphthanides of the general formula:- in which R 1  is an alkyl group and R 2  and R 3  are hydrogen or alkyl are present during the development of exposed photographic silver halide material by means of a colour developer in the presence of one of the compounds and of one or more colour couplers. The naphthamides may be present in the colour developing solution or may be present initially in a layer in the colour photographic material, e.g. in a silver halide layer. Alternatively the naphthamides may be present during colour development by being adsorbed on to colour photographic material from a bath with which the colour photographic material is treated after exposure and before colour development. Colour contrast and maximum density of the dye image is increased.
Patent GB-1288715-A (GB)
IPC: G01N1/06
Filed: 1971-06-09
Abstract: 1288715 Mounting microscope specimens ERNST LEITZ GmbH 9 June 1971 [12 June 1970] 19713/71 Heading G2J An arrangement for mounting frozen sliced specimens employs a movable arm 1 that successively picks up a slide 5, places it into the cut specimen 6 and then moves it to a release position 6 where the slide is dropped on to a slip ring 7. The slide is handled by motion and the apparatus is programmed. To aid adhesion, the slide may be treated before being placed on the specimen.
Patent GB-1289487-A (GB)
IPC: G06F3/037
Filed: 1969-12-23
Abstract: 1289487 Cathode-ray tubes INTERNATIONAL BUSINESS MACHINES CORP 23 Dec 1969 [14 Jan 1969] 62506/69 Heading H1D A cathode-ray tube faceplate 1 is provided with an anti-reflective coating (for use with a capacitively coupled voltage pen 9 comprising (i) A transparent crystalline dielectric layer 6 of refractive index (N) 1.50-1.80 and thickness #/4N; (ii) A transparent semi-conductor layer 7 having N = 1.60-2.70 and thickness #/2N (20%); and (iii) A transparent dielectric layer 8 having N = 1.35-1.50 and thickness 3#/4N (20%), where # is a given wavelength of visible light and N is taken at wavelength #. A circular polarizer, comprising a quarter wave retarder 4 and a plane polarizing filter 3, and a glass implosion shield 5 may be provided. Specified materials for the coating are: layer 6: Si 2 O 3 , CeF 3 , Al 2 O 3 ; layer 7: SiO, ZnS, TiO 2 , Bi 2 O 3 , SnO 2 , In 2 O 3 ; layer 8: MgF 2 .
Patent GB-1290105-A (GB)
IPC: B23K9/10
Filed: 1970-02-24
Abstract: 1290105 Arc welding control systems FOS. TER TRANSFORMERS Ltd 19 April 1971 [24 Feb 1970] 8846/70 Heading H2H Arc welding apparatus comprises means whereby during periods when welding is not taking place the welding electrode is maintained at a safe, low potential. A welding electrode of an arc welding apparatus is connected to a lead 13, the workpiece to a lead 15 and an A.C. supply to a lead 10 and to the lead 15 which is earthed. When a welding operation is to be initiated the welding electrode i brought into contact with the workpiece whereupon current flows from the secondary winding of a step-down transformer 21; the primary winding of which is connected across the A.C. supply 10, 15; through a diode 22, the normally closed contacts MC/3, MC/2 of a contactor MC3 and the operating coil of a reed relay RL2. Energization of the reed relay RL2 closes its contacts RL/1, RL/2, the closure of contact RL/1 causing conduction of a thyristor 16 by means of which the operating coil of contactor MC3 is energized to close contact MC/1 and open contacts MC/2, MC/3. Thus the welding electrode is connected to the A.C. supply by way of the primary winding 11 of a saturable current transformer 12 and disconnected from the device including the reed relay RL2. During welding and the contact MC/3 open the reed relay RL2 is maintained energized by the output of the secondary winding of the current transformer 12 and the closed contact RL/2. Thus the contactor MC3 will be energized to maintain the welding electrode connected to the A.C. supply at any tine when welding current is flowing to energize the current transformer 12. A diode 29 enables current to circulate in the coil of the contactor MC3 during the non- conducting half cycles of the thyristor 16 and a diode 28 maintains energization of the contactor coil should the electrode and workpiece become short circuited during welding. Spurious operation of the thyristor 16 by switching transients are avoided by a capacitor 26 and resistor 27 and remanent magnetism of the reed relay RL2 delays its drop out after the contactor coil has become de-energized. Indicator lamps 30, 31 are provided.
Patent GB-1290480-A (GB)
IPC: C07C37/02
Filed: 1970-11-24
Abstract: 1290480 Production of dihydroxybenzenes UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF AG 24 Nov 1970 [8 Dec 1969] 55745/70 Heading C2C Dihydroxybenzenes are prepared by hydrolysing a chlorophenol or a mixture of chlorophenols in a concentration of from 0.1 to 1 mol per litre, with the corresponding quantity of 0.2 to 3.5 N alkali liquor in the presence of 0.1 to 0.25 g./litre of dissolved copper at 160‹ to 250‹ C., adding up to 10 g./litre of a reducing agent at the beginning of the reaction, acidifying the reaction mixture after the reaction and extracting the dihydroxy compound thus produced. In the examples, t-butyl pyrocatechol, isohomopyrocatechol, 3-ethylpyrocatechol, psec.-butyl pyrocatechol, hydroquinone, pyrocatechol, homopyrocatechol, and 3,5-dimethylcatechol are prepared.
Patent GB-1297731-A (GB)
IPC: G01N29/26
Filed: 1971-04-19
Abstract: 1297731 Flaw detectors REPUBLIC STEEL CORP 19 April 1971 [16 Feb 1970] 21475/71 Heading G1N Flaws in a workpiece 20 are detected by one or more probe mechanisms 44, e.g. of the type disclosed in Specification 1, 277, 690, the mechanisms 44 being mounted on a drum 32 through which the workpiece passes, the drum being rotatable in a frame assembly 34 which is pivotable about an axis 40 and movable in a directions 42 transverse to the axis 40, and the frame 34 carrying a pair of guide rollers 36, 38 which contact the workpiece so that the drum and mechanisms 44 are correctly positioned relative to the workpiece. Sensors are provided for detecting the entry and exit of the workpiece 20 in the drum and to control the movements of the rollers 36, 38, frame 34, probe mechanisms 40, and paint markers 46 into and out of their operative positions. Self contained hydraulic units are mounted on the drum 32, the only contact between the drum and frame being electrical for controlling these units.
Patent GB-1297888-A (GB)
IPC: F02M3/14
Filed: 1971-04-19
Abstract: 1297888 Spray carburetters NISSAN MOTOR CO Ltd 19 April 1971 [12 Feb 1970] 21217/71 Heading F1B A recess 36a in the choke piston 32 provides an air-flow passage at the fuel nozzle 24 when the piston approaches the constriction 22.
Patent GB-1303246-A (GB)
IPC: B23K9/028
Filed: 1969-06-30
Abstract: 1303246 Welding by fusion FOSTER WHEELER JOHN BROWN BOILERS Ltd 10 June 1970 [30 June 1969] 32983/69 Heading B3R Electric arc welding apparatus for welding a flanged extension piece 62 to a pipe 68 comprises a body 12 having a rotary welding head 16 including an electrode 18, e.g. of tungsten, a number of arms 22 extending from the body and having means, such as projections 64 and permanent or electromagnets 60, for holding the piece 62 to the body, and a tapered guide 19 for centring the body relative to the pipe 68. If desired, the head 16 can bearranged to perform the weld externally of the pipe 68. However, as shown, it is arranged to perform internal welding, it being mounted for rotation with a spindle 14 arranged to be driven by a transmission including worm pairs 30, 32 and 38, 40 as well as bevel gear pairs 34 and 36. Guide 19, which can be conical, or generally conical with a convex wall (as shown), or as the latter but truncated, is rotatable on spindle 14. The body has an upper flange 42 provided with lifting lugs 44. Thus, the pipe 68 being in the core of a nuclear reactor, the apparatus can be lowered to pipe 68 from above, its progress being observed by television. Where a certain orientation of piece 62 relative to pipe 68 is required, a finger on the head senses a cut-out or indentation in pipe 68 to cause a microswitch to initiate a signal to the operator. As shown, three arms 22, spaced at 120 degree intervals, are provided. Argon shielding gas can be supplied to the weld region via the head 16.
Patent GB-1307698-A (GB)
Title: Ovens for domestic cookers and doors therefor
IPC: F24C15/02
Filed: 1970-09-14
Abstract: 1307698 Drop-down oven doors W H G THOMPSON 14 Sept 1971 [14 Sept 1970] 43800/70 Heading F4W [Also in Division E2] A drop down oven door 13 is hinged to horizontal bars 15 sliding vertically in the frame of the cooker. Slotted stays 17 engage pins 19 on vertical members 20 carried by the bars 15, and are connected to the rear end of bars 15 by springs 21. An upright 24 has a notch 23 engaging a pin 22 on the stay 17 so that, in the closed position, the door is held at its lowest level until released by slightly opening it. Lugs 26 with rubber buffers 27 are arranged in the door frame to hold the door in a horizontal position corresponding to each shelf position by engaging the pins 22. The arrangement is counterbalanced by springs 25 at the top of the door frame, and the door may be removed from the pivots for cleaning.
Patent GB-1314816-A (GB)
Title: Disconnectable hose couplings
IPC: F16L37/12
Filed: 1969-07-09
Abstract: 1314816 Pipe couplings HAYDEN-NILOS Ltd 8 July 1970 [9 July 1969] 34608/69 Heading F2G  A disconnectable hose coupling comprises a spigot 1, a socket 2 carrying a slidable sleeve 4 and arcuate catches 3 which hold the spigot in engagement with the socket. The sleeve 4 constrains ribs 5a on the catches 3 in a groove 6 on the socket and also, in the locked position, ribs 5b on the catches engage behind a flange 7 on the spigot. The sleeve 4 has a flared mouth 8 to urge the catches into the locking position and a re-entrant portion 25 of the bore into which the catches move under the influence of internal pressure in the coupling to oppose accidental movement of the sleeve 4 from the locking position. In the embodiment shown, the re-entrant portion 25 of the sleeve bore is tapered in the same direction as the flared mouth 8 and upon application of an internal pressure, which may be from a spring 27, the catch ends 5b ride up on to a shoulder 28 of the spigot flange 7. The sleeve 4 can slide between a flange 31 on union 32 and a position in which the end 29 of tapered bore 25 abuts the catches 3. An 0-ring 15 and cup washer 18 seal the spigot and socket. A hose may be attached to the spigot end 21 by a ferrule gripping the hose around a groove 22. A shallow groove or knurled area 14 enables the sleeve to be gripped firmly. In another embodiment, the re-entrant portion of the sleeve bore (24), (Figs. 1, 2, 3, not shown) tapers in the reverse sense to the flared mouth (8) permitting the ends of the catches remote from the socket opening to move against the sleeve under pressure in the coupling. The limits of sliding of the sleeve (4) are determined by a spring clip (9) on the socket engaged in a further tapered bore section (13) of the sleeve.
Patent GB-1319065-A (GB)
Title: Foamed resin material
IPC: C08J9/00
Filed: 1970-07-23
Abstract: 1319065 Extruding corrugated foamed sheet MONSANTO CHEMICALS Ltd 1 July 1971 [23 July 1970] 35709/70 Heading B5A [Also in Division C3]  An extruded foamed resin comprises a sheet exhibiting a corrugated cross-section when cut by any plane normal to the major surfaces of the sheet, the corrugations having widths that vary irregularly from one corrugation to another so that both major surfaces of the sheet have an irregularly pitted appearance. The sheet is made by extruding a foaming resin sheet through a slit die orifice into a passageway having a rectangular transverse cross-section larger than that of the orifice, foaming begins before the resin leaves the orifice and the passageway restricts both sideways and forwards expansion of the sheet which is caused to corrugate as above. The resin may be polypropylene or polyethylene and may contain a butene as blowing agent and azodicarbonamide as nucleating agent. The passageway restricting the extruded sheet may be defined by a pair of opposing cooled concave surfaces. The extrusion dies may be as shown in Figs. 5-9 and may comprise two steel blocks spaced apart to form a slit die orifices which lead into the passageways. Figs. 1-4 show corrugated foamed sheets of the invention.
Patent GB-1328351-A (GB)
Title: Full wave rectifier assemblies
IPC: H02M7/06
Filed: 1969-12-31
Abstract: 1328351 Semi-conductor rectifiers JOSEPH LUCAS (INDUSTRIES) Ltd 11 Dec 1970 [31 Dec 1969] 63414/69 Heading H1K A semi-conductor rectifier assembly is attached to a star-connected 3-phase vehicle alternator and comprises an additional half-bridge feeding the voltage regulator. The assembly comprises an anodized aluminium body from one side of which cooling fins project. The phase plates are fastened by thermally conductive adhesive in respective transverse slots on the other face of the body; each connector bears two diodes mounted with one polarity and one mounted with the other polarity. Between the slots are two further slots in which are fastened transverse insulating strips which mount three longitudinally extending terminal strips interconnecting the diodes on the phase plates and providing the two D.C. positive terminals and the common negative terminal. The rivets securing the negative terminal strip and the insulating strips effect electrical connection between the negative strip and the body of the assembly, the anodized coating of the body being locally removed for this purpose. As a variant it may instead be the terminal strips which are adhesively fastened to the body by thermally conductive adhesive.
Patent GB-1329567-A (GB)
Title: Stirling cycle heat engines
IPC: F02G1/043
Filed: 1971-10-21
Abstract: 1329567 Stirling cycle engines UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 Oct 1971 [21 Oct 1970] 50073/70 Heading F1S [Also in Division F4] A stirling cycle engine comprises hot and cold chambers 15, 16 intercommunicating through a regenerator 22 and a liquid system in which liquid 13 within at least one of the chambers is displaceable for varying the gas volume in the chamber by direct contact with the gas. As shown the whole engine is mounted so as to be pivotable in the plane of the paper about a point marked A and a spring 23 biases the engine towards a rest position. In operation the output column of liquid 14 oscillates. Water may be used for the displacer liquid 13 and mercury in the output column 14. Output power may be taken from the rocking movement of the engine. Liquid movement or pressure variations may be employed to drive a moving iron or moving coil generator. In general the engine must be turned to resonate for satisfactory operation. Other embodiments are described. Sources of heat which have been used include hot air blowers, infra red lamps and electrical heating elements but other heat sources may be employed.
Patent GB-1331709-A (GB)
Title: Method of and apparatus for measuring an electric characteristic  of a shunted portion of an electric circuit
IPC: G01P5/12
Filed: 1971-08-24
Abstract: 1331709 Measuring resistance of a shunted element MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT 24 Aug 1971 39603/71 Heading G1U In order to measure the resistance of a temperature sensitive element 16; Fig.3, which is shunted by its metal casing 18, a voltage source 7 is applied across the element and an additional voltage source 9 is applied between one end 22 of the element 16 and a point 23 on the casing 18, the additional voltage source being adjusted with the aid of a galvanometer 10 so that the potential drop from the other end 21 of the element 16 to the point on the casing is zero. With the assumption that the equivalent circuit of the element and its casing is an in Fig. 1 where the resistor 1 represents the element and resistors 2, 3 and 4 the casing, it then follows that all the current from the source 7 flows only through the element 16 Fig.3 so that by measuring this current and the potential across the element with appropriate meters 11, 12 the resistance of the element can be determined. In a second embodiment Fig. 4, two additional resistors 28, 29 so connected as to form a bridge with the element 16 and that portion of the casing from the lower end 31 of the element to a point 27 on the casing. A potential source 7 is connected across one diagonal of the bridge and a galvanometer 10 across the other and across which the other part of the shunting case also appears. By adjusting the resistors 28 and 29 to balance the bridge, the resistance of the element 16 can be computed from the following formula - R16 = (R28.V)/(R29.A). A similar arrangement can be used for measuring the electrical conductivity of a fluid Fig. 6 (not shown), or the rate of flow of a fluid Fig. 7 (not shown).
Patent GB-1332789-A (GB)
Title: Knitted fabric of carbon
IPC: D01F9/22
Filed: 1970-01-30
Abstract: 1332789 Knitted fabric COURTAULDS Ltd 19 April 1971 [30 Jan 19701 4544/70 Heading D1K [Also in Division Cl] A knitted carbon fabric is obtained by knitting a fabric from tow or yarn comprising filaments or fibres of oxidised polyacrylonitrile i.e. filaments consisting wholly or mainly of polyacrylonitrile which filaments have been heated in an atmosphere of air or other oxidising gas at a temperature in the range 200- 300‹C under various conditions of time and tension, and carbonising this fabric by heating at a temperature above 1000‹C in an inert atmosphere. The fabric may be further heated - graphitised - by heating at a temperature not less than 2000‹C in an inert atmosphere. The fabric may be knitted into a desired shape. The fibre used may be an untwisted tow, and the fibre may be knitted under tension.
Patent GB-1347805-A (GB)
Title: Rotary aircompressors
IPC: F04C18/56
Filed: 1972-04-14
Abstract: 1347805 Rotary compressors L RICHTER 14 April 1972 17383/72 Heading F1F An air compressor comprises a compressedair container 34 housing a hollow member secured by bolts 21 and defining a chamber 1 wherein an impeller 8 is fixed to an externallydriven shaft 7, which carries a flywheel 17 and is coupled to a turbine rotor 20 adjacent a compressed-air outlet-opening 36. Atmospheric air is drawn through openings 3, 3<SP>1</SP> controlled by spring-loaded valves 2, 2<SP>1</SP> and is directed by the impeller into an opening 11 in a wall 9. The opening 11 communicates with an opening 31 formed in a cover 13 in register with a ring of gear-teeth 10 meshing with a gear 16, which is mounted on a radial pin 27 in a notch 41 at a leading portion 39 of said cover. Due to suction created by the gear air is drawn into the geartooth spaces 38 from the opening 31 and is thus transferred (as indicated by arrows 42, 44) to the outer side of a trailing portion 40 of the cover and so to the interior of the container 34. The compressed air flowing to the opening 36 drives the rotor 20. Air discharged from the appliance to which the compressed air is supplied returns to the chamber 1 through openings 4, 4<SP>1</SP>. The openings 3, 3<SP>1</SP> can be closed by turning plates 23 mounted on the stems of the valves 2, 2<SP>1</SP>.