baber/WOPTO huggingface dataset:
Patent GB-1246676-A (GB)
Title: Electroslag remelting of metal
Inventor: EFROIMOVICH JURY EFIMOVICH
IPC: H05B3/00
Filed: 1968-10-08
Abstract: 1,246,676. Casting processes. TSENTRALNAYA LABORATORIA AVTOMATIKI. 8 Oct., 1968, No. 47641/68. Heading B3F. [Also in Divisions G2-G3] An electroslag remelting process is carried out in accordance with a predetermined programme which continuously specifies a predetermined resistance between the consumable electrode and the ingot and a predetermined ingot build-up rate, the process being automatically controlled so that the voltage and/or current between the electrode and ingot is continuously varied to obtain the predetermined resistance and to simultaneously vary the heat within the slag bath to cause the ingot build-up rate to approach the predetermined value. In the described embodiment a programme control unit 1, containing an optimum programme of experimentally-compiled values of resistance and build-up rate relating to the mould size, type of electrode and slag grade, supplies reference signals to:- (1) The setting unit 3 of a voltage regulator 2 which controls the transformer power supply 12 to maintain the voltage across the mould at a predetermined value. (2) The setting unit 5 of a current regulator 4 which controls an electrode-moving mechanism 7 to maintain the current through the mould at a predetermined value.  (3) A counting comparison element 15 which compares the signal from an electrode feed-rate senser 10 with the signal from unit 1.  (4) A pulsed timer 13 which sets a predetermined time period for the element 15 to compare the actual advance of the electrode 8 during this period with the predetermined value from unit 1.  The element 15 controls a command correction unit 14 whose output signals are passed to the setting units 3, 5 during the remelting stage of the process. Prior to this, when the slag 18 in the mould 11 is being diluted and heated, the voltage and current are maintained at values set by the unit 1 through operation of regulators 2, 4. During remelting a periodic comparison is made by the element 15 and the unit 14 alters the settings of units 3, 5 to gradually change the rate of heat generation in the mould 11 and hence the rate of electrode melting, whilst maintaining the mould resistance at the predetermined value. Thus the remelting stage is divided into a number of periods during each of which the voltage and current are varied in accordance with the comparison made by element 15 at the end of the previous period, so that the actual electrode feed rate may be kept nearly equal to the predetermined rate set by the unit 1.
Patent GB-1521369-A (GB)
Title: Heating systems such as microwave ovens
IPC: H05B6/74
Filed: 1976-11-16
Abstract: 1521369 Microwave ovens CHEMETRON CORP 16 Nov 1976 [1 Dec 1975] 47645/76 Heading H5H Apparatus for adjusting the distribution of microwave energy in a heating system such as a microwave oven comprises a generally planar electrically conductive member 152 positioned in the oven cavity near a boundary or wall of the oven cavity and movable such that an edge 156 is rotatable about an opposite edge 154. As shown the apparatus comprises a nylon adjusting screw 158, a protruding wall portion 106 below the plate 152 and a second plate 175 above the plate 152 the second plate also being adjustable to obtain the required energy distribution. A control assembly (104, Fig. 1, not shown) mounted below the oven floor co-operates with a sensor assembly on a tray, the sensor assembly comprising a ferrite sensor element 116. The tray can carry food to be heated and also food which does not require heating, the latter being placed under a box-like electrically conductive shield (not shown) which engages conductive strips on the tray. A transparent cover 190 is provided to protect members 152, 175 from dirt or accidental disturbance.
Patent GB-1085013-A (GB)
Title: Gaseous laser
IPC: H01J17/04
Filed: 1964-11-24
Abstract: 1,085,013. Gas lasers. CANADIAN PATENTS & DEVELOPMENT Ltd. Nov. 24,1964 [Dec. 4, 1963; Aug. 10, 1964], No. 47658/64. Heading H1C. In a helium-neon gas laser, bulbs 12, 14 of larger diameter than the main tube 10 and communicating therewith through holes 13, 16 are surrounded by exciting electrodes 17, 18. Plugs 21 having concave reflecting surfaces are sealed in the ends of the laser. Shields (36), Fig. 4 (not shown), may be provided to prevent sputtered quartz molecules from reaching the reflectors.
Patent GB-1373315-A (GB)
Title: 2-3-dihydro-2,2-dialkyl-4-benzo-b- thienyl n-alkylcarbamates
IPC: C07C45/68
Filed: 1972-10-17
Abstract: 1373315 Benzothiophene derivatives MOBIL OIL CORP 17 Oct 1972 47760/72 Heading C2C Novel 2,3 - dihydro - 2,2 - dialkyl - 4- benzothienyl N-alkylcarbamates having the general formula wherein R is (C 1 -C 4 ) alkyl and R<SP>1</SP> is hydrogen or (C 1 -C 4 ) alkyl, are prepared by converting a 2,2 - dialkyl - 2,3 - dihydro - 4 - hydroxybenzothiophene to the 4-carbamate. A suitable synthesis route to the product from dihydroresorcinol or an alkyl-substituted derivative thereof is described. The novel compounds possess pesticidal properties.
Patent GB-1043739-A (GB)
Title: Improvements relating to monorail conveyors
Inventor: JACKSON ERIC WALTER
IPC: B61B10/02
Filed: 1963-12-04
Abstract: 1,043,739. Rope grips. BECORIT (RESEARCH) Ltd. Dec. 1, 1964 [Dec. 4, 1963], No. 47819/63. Heading F2X. [Also in Division B7] Relates to means for connecting a monorail conveyer trolley 11, 12, Fig. 1, to a traction cable 19 between spaced abutment elements 40 thereon {see also Division B7). Each abutment element, Fig. 6, comprises a two-part collar 41, 42, the component 41 having four holes recessed externally at 45 to receive bolts engaging in four threaded holes 44 in the component 42. A longitudinal groove in each component is of polygonal cross-section and the ends 48 are bevelled. The cable coupling element on the trolley 12 comprise a bifurcated body part 21, Fig. 3, the limbs 21a of which have slots 22 to receive the cable and a hook part 23 pivoted between the limbs on a threaded pin 24. The hook part 23 has an edge portion 29 either concentric with the pin 24 or tangential as at 29a, to a circle centred on the axis of the pin. The hook part is locked in the cable embracing position by a manually-operable spring-pressed pin 32 engaging a cut-out 36 in the hook part. The limbs 21a are joined at 38.
Patent GB-957279-A (GB)
Title: Non-woven fabric and method of mechanically working same
IPC: D06C21/00
Filed: 1962-12-19
Abstract: 957,279. Finishing fabrics; agglutinated fibrous fabrics. CLUETT, PEABODY & CO. Inc., and WEST VIRGINIA PULP & PAPER CO. Dec. 19,1962 [Dec. 19,1961], No. 47932/62. Headings D1R and D1S. The drape of a non-woven fibrous fabric is increased by frictionally adhering the fabric P to a stretched resilient surface 15 and causing the surface 15 to contract while the fabric P is maintained in frictionally adherent contact thereagainst to subject the fabric P to a compressive force. A belt 15 having a contractible surface layer, preferably of rubber, and a relatively inextensible cord backing passes around rollers 10,11,12. A driven roller 13 is positioned as shown so that the outer surface of the belt 15 is convexly curved as it passes around the roller 10 and is thus stretched. The fabric P is fed into the nip N and is frictionally gripped by the belt 15 which contracts as it passes around the roller 13 to apply compressive forces to the fabric P parallel to the surfaces thereof. The fabric P may be dry or slightly moistened and the roller 13 may be at room temperature or heated. The fabric may be of man-made fibres or a mixture of man-made and natural fibres and suitable fibres include cotton, polyester and cellulosic, e.g. viscose and acetate rayon, fibres. A binder may be added to the fabric before treatment, e.g. a web of carded viscose rayon fibres maybe bonded with a 10% water based acrylic adhesive.
Patent GB-1090208-A (GB)
Title: Moulding assemblies and fasteners therefor
Inventor: ANCLIFF WALTER ALBERT
IPC: F16B5/12
Filed: 1965-11-12
Abstract: 1,090,208. Releasable fastenings. FORD MOTOR CO. Ltd. Nov. 12, 1965, No. 48055/ 65. Heading E2B. A fastener comprises a shank 3a which in use passes through an aperture 5 in a panel 1, the shank having a radially projecting portion 3b which in use engages inturned flanges of a hollow moulding 2 which is to be secured to one side of the panel, one or more resilient projections 3c extending from the projecting portion 3b and which in use press against the inside of the front of the hollow moulding and a spring clip 6 which in use is mounted on a shank and which engages the opposite side of the panel to hold the moulding securely against the panel. In the construction, shown, in which the hollow moulding is a trim strip secured by a plurality of such fasteners, the radially projecting portion of each fastener has two resilient projections 3c and the spring clip is bifurcated so that it has two spaced apart legs, the legs engaging on opposite sides of the shank underneath a head 3d and portions of the spring clip on opposite sides of the shank pressing on the panel.
Patent GB-1454086-A (GB)
Title: Process for recovering zinc from ferrites
IPC: C22B19/30
Filed: 1973-10-17
Abstract: 1454086 Recovering zinc from ferrites ASTURIANA DE ZINC SA 17 Oct 1973 [20 Oct 1972] 48470/73 Heading C1A A method of recovering zinc from material containing zinc ferrites comprises treating the material in a first stage, constituting a combined ferrite dissolution and iron removal stage, with a solution of sulphuric acid to dissolve the zinc ferrites, the zinc of the dissolved ferrites being taken into solution in the form of zinc sulphate, and to precipitate most of the iron of the dissolved ferrites in the form of a jarosite compound, the solids subsequently being separated from the solution and the zinc being recovered from the solution after purification of the latter. It is preferred in the first stage to add Na<SP>+</SP>, K<SP>+</SP> or NH 4 <SP>+</SP> ions to facilitate precipitation of dissolved iron in the form of a jarosite compound and also to neutralize with, e.g. ZnO until the acidity of the solution is 10-100g./l. of H 2 SO 4 . The resulting solution may be neutralized in a second step with further ZnO until its acidity is 2-10g./l. of H 2 SO 4  to remove the remaining iron as a precipitate. A temperature of 50‹ C. to bp is preferably maintained throughout the process. Any Fe<SP>++</SP> ions present or formed may be suitably oxidized by MnO 2 . Reference has been directed by the Comptroller to Specification 1322745.
Patent GB-1124604-A (GB)
Title: Improvements in or relating to aspirator and like devices
IPC: A61M15/00
Filed: 1965-11-17
Abstract: 1,124,604. Inhalers; insufflators. S. LEIGH. 11 Nov., 1966 [17 Nov., 1965; 5 April, 1966], Nos. 48870/65 and 15089/66. Headings A5R and AST. A pocket inhaler comprises a resilient deformable container 1 containing a volatile substance so that on squeezing and releasing the container air is expelled and drawn into the container. The volatile substance 7 in the form of crystals or granules or a liquid in an absorbent material e.g. cotton wool, is located in a detachable unit comprising a tube 14 and a nasle 3 of the container. Alternatively, the volatile substance is placed inside the container (Fig. 1).
Patent GB-1472269-A (GB)
Title: Transfer apparatus for transferring charged particles to a sheet of support material
IPC: G03G15/16
Filed: 1974-11-12
Abstract: 1472269 Electrostatographic printing XEROX CORP 12 Nov 1974 [30 Nov 1973] 48995/74 Heading B6C A multiple charge-layer transfer device 36 in a colour copying machine comprises a reciprocatingly driven support belt 38 having a plurality of apertures 40 and supported by rollers 42. A corona discharge 44 is housed below (or above) the support surface 38a in the nip formed with a photoconductive drum. The copy sheet on belt 38 receives a multi-layer image each layer corresponding to a colour and to one movement of the belt. A vacuum applying means 54 assists in retaining the copy material on the belt 38.
Patent GB-1509757-A (GB)
Title: Method of and apparatus for determining the exposure in the production of photographic colour prints
IPC: G03B27/73
Filed: 1975-11-28
Abstract: 1509757 Photographic exposure control GRETAG AG 28 Nov 1975 [13 Dec 1974] 49096/75 Heading G2A An original I is scanned point-by-point to determine the density of each point in each of three primary colours, those points whose densities fall within ranges determined from a reference original are selected and the density values of the selected points are used to determine exposure values for controlling colour balance of the three primary colours. In this way the influence of colour dominants is minimized. Preferably if the number of eligible points falls below a certain percentage of the total number of points, the number is made up using the density values of the reference original, resulting in under-correction. As shown, the original 1 is scanned using a light source 3, rotating, six-sided mirror 6, lens 7, mirror 8 and photo-cells 9. A computer 21 compares the density values of the scanned points with stored reference values, selects eligible points, and calculates colour balance. It also determines overall exposure time preferably from the five highest and five lowest density values in each colour. When the original reaches the exposure station comprising a light source 13, lens 15, filters 16, shutter 17 and sensitive material 2, the computer 21 controls the filters 16 and shutter 17 according to the calculated exposure values. Formulae are given in the specification for selecting points, for calculating colour balance from the densities of the selected points, and for calculating overall exposure time from the highest and lowest density values. Instead of using density values D, transmission values T may be used where D= -log T; the formulae being modified accordingly.
Patent GB-987647-A (GB)
Title: Automatic packaging apparatus
IPC: B65B35/40
Filed: 1962-12-31
Abstract: 987,647. Packaging machines. L. JOURDAN. Dec. 31, 1962 [Dec. 29, 1961], No. 49110/62. Heading B8C. An automatic packaging machine comprises a sleeve 15 carrying a supply of tubing 17, a reciprocating plunger 6 for pushing articles from cups 3 on an intermittently moving conveyer A through openings 5 in plate 4 and through sleeve 15, the articles engaging and drawing off a length of tubing 17 corresponding to the length of the articles, the tubing being then contracted behind the articles, fastened at two spaced lines and cut between the two lines. Two axially spaced pairs of arms 20, 21 have guide fingers 26, 27 and 29, 30 to contract the tubing when the arms are pivoted towards each other by cylinder 23; a cylinder 32 then actuates two devices 31, Figs. 4, 6, to fasten the tubing twice and knives 33, 34, Fig. 4, carried by arms 20, 21 cut the tubing. The filled bag then slides down an inclined table 37. The arms with the guide fingers may be replaced by rectilinear slides and the cylinders may be hydraulic, pneumatic or mechanical with electric control. When all the tubing on sleeve 15 is used a freshly loaded sleeve replaces the old sleeve which is readily removable through a bayonet connection 14. The stroke of plunger 6 can be adjusted for different length articles or alternative sleeves and plungers of different diameter can be used.
Patent GB-1133240-A (GB)
Title: Improvements in or relating to low pressure mercury-vapour discharge lamps
IPC: H01J61/04
Filed: 1966-11-02
Abstract: 1,133,240. Metal-vapour lamps; cathode materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Nov., 1966 [5 Nov., 1965], No. 49168/66. Heading H1D. In an elongated low pressure mercury vapour discharge lamp having a thermionic cathode at each end, at least one of the cathodes 4 has an associated apertured plate 10 and collar 12 the dimensions and positioning of which satisfy the conditions (a) p # 5 mm., (b) q and the diameter of aperture 14 # 2 mm. and # 9 mm., (c) r # 3 mm. and (d) 8 # 2 mm. The arrangement is stated to reduce interference signals emitted by the lamp in the range between 550 and 1400 kc/s., and in the range between 160 and 240 kc/s. The collar may be of gauze or may be frusto-conical, and the plate may have two apertures. The plate may be of insulating material, e.g. ceramic, and the collar of metal or both plate and collar may be of metal, e.g. iron. The lamp envelope may have an internal fluorescent coating. Each cathode is a coil, coiled-coil or triple coil of tungsten-wire coated with electron emissive material mixed with boron nitride, which is stated to further reduce the interference level.
Patent GB-1471430-A (GB)
Title: High-temperature heat insulation shield
IPC: F27D5/00
Filed: 1974-11-14
Abstract: 1471430 Radiation shield assemblies L KORTVELYESSY 14 Nov 1974 49281/74 Heading F4B A heat insulating shield, e.g. for an electric furnace comprises a plurality of thin metal foils which, when heated, become wavy so as to touch each. Where the foils touch they weld together and so preserve the spacing at other points. A gas, present between the foils, may range in pressure down to a vacuum.
Patent GB-1054710-A (GB)
IPC: C09D11/02
Filed: 1965-11-23
Abstract: 1,054,710. Disazodyes "ffs; hectographic units. E. I. DU PONT DE NEMOURS & CO. Nov. 23, 1965 [Nov. 23, 1964]. No. 49753/65. Headings C4A and C4P. [Also in Division D2] The invention comprises dyes of the general formula wherein R 1 is H 1 F,Cl, Br, methoxy or ethoxy: R 2 is methyl or phenyl; and Y is H. F, Cl, Br, a C 1 -C 4  alkyl group, methoxy or ethoxy, and acid salts thereof. They are prepared by coupling in acid medium a tetrazotized diamine of the formula with a 2-methylene indoline of the formula in which formulae Y, R 1  and R 2  have the above meanings. The invention further comprises mixtures of the above dyestuffs with one or more basic dyes of the triarylmethane series e.g. Crystal Voilet, Victoria Blue B and Victoria Pure Blue BO. In a preparation of a hecograph with composition, a composition comprising Crystal Violet, Victoria Blue B and a dye according to Example 1(a) is added to a melted homogenous mixture of Carnauba wax, petroleum jelly, mineral oil SAE No. 30 and paraffin wax; the final mixture is agitated and then ground at 85-120 C. to give a dispersed suspension of the dye in the vehicle.
Patent GB-1280468-A (GB)
Title: Electrical generating apparatus which employs the rankine operating cycle
Inventor: BARNES GEORGE RAYMOND
IPC: F01D25/22
Filed: 1968-10-22
Abstract: 1280468 Vapour engine power plant ENGLISH ELECTRO CO Ltd 5 Dec 1969 [22 Oct 1968] 49976/68 Heading F1Q Electrical generating apparatus comprises heat exchanger means 11 for transferring heat from a first fluid 10A to a working fluid, a turbinegenerator 13 arranged to be driven by the heated working fluid and condenser means 14 for condensing the working fluid downstream of the turbine generator by transferring heat from the working fluid to a third fluid, the condensed working fluid in use being returnable from the condenser means to the heat exchanger means by gravity. The apparatus is especially suitable for use as an underwater generating unit e.g. for supplying power to a battery which in turn supplies power to fluid-control valve actuators or other electrical apparatus associated, for example, with an undersea gas pipe. In such a case the first fluid if the gas and the third fluid is seawater, the unit being on or adjacent the seabed.
Patent GB-1366362-A (GB)
Title: Device for interlocking two elements which are relatively slidable
IPC: B60N2/07
Filed: 1971-10-29
Abstract: 1366362 Seat slides AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 29 Oct 1971 [18 Nov 1970] 50319/71 Addition to 1298775 Heading A4J [Also in Division E2] The locking device for a sliding seat disclosed in patent 1298775 is modified by making the locking device symmetrical with respect to a plane parallel to the longitudinal direction of the slideway and perpendicular to the horizontal and by replacing the rollers by pairs of fingers. The locking device is preferably formed with a C- shaped slideway 31 fixed to the vehicle floor and a fork having two branches 37 integral with the frame of the seat, the two branches being interconnected in their lower part by a pin 38 on which a slide block 39 is mounted, two locking fingers (42) Fig.1 (not shown) and 43 being slidably mounted in slots (40) and 41 respectively formed in the block and being moveable into and out of engagement with the teeth of two racks 36 fixed to the slideway by a cam having two identical side walls 44 inter-connected by a spacer element 45. The cam which is connected to an actuating cable (49) is spring-biased to aposition in which the fingers are engaged in the racks.
Patent GB-1280727-A (GB)
Title: A method and device for plasma-arc welding
Inventor: PATON BORIS EVGENIEVICH
IPC: B23K9/09
Filed: 1969-10-15
Abstract: 1280727 Welding by fusion INSTITUT ELEKTROSVARKI IMENI EO PATONA 15 Oct 1969 50626/69 Heading B3R [Also in Division H2] In plasma arc welding of small gauge sheet metals, e.g. of aluminium or its alloys, wherein a constantly burning pilot arc, between a non- consumable electrode 1 and a water-cooled copper nozzle 2, is supplied from a D.C. source 3, alternating voltage pulses (W 1 , W 2 ), respectively positive and negative with respect to the workpiece 4, are supplied respectively to the nozzle 2 to destroy surface oxide films and to the electrode to form the main fusing arc. As shown, the pulses (W 1 , W 2 ) are supplied respectively from a point a and a tap b of the secondary winding of a transformer 5 the primary winding of which is supplied by A.C. through an adjustable choke 9. During the positive voltage half-cycles the pulses (W 1 ) are supplied to the nozzle through a diode 7, a thyristor being arranged to be closed to avoid short-circuiting of the secondary winding part a, b by the pilot arc. At the beginning of the negative voltage half-cycle, a controlling circuit (not described) opens the thyristor 6 so that the pulse (W 2 ) is supplied therethrough to the electrode. The thyristor 6 may operate to provide groups of pulses of adjustable pulse number and group frequency. In Fig. 4 (not shown), the points a, b coincide, and the means 6 may be a non-controllable diode. When using a transformer 11 with a variable falling voltage characteristic (Fig. 5, not shown), the diode 7 is replaced by a thyristor (13) so controlled as to avoid arc-hampering loading of the secondary winding part a, b by the pilot arc when welding reverse polarity current lags.
Patent GB-1376106-A (GB)
Title: System for detecting the presence in a field of fiew of a preselected object
IPC: G01S17/04
Filed: 1970-10-26
Abstract: 1376106 Detecting pre-selected objects DEFENCE SECRETARY OF STATE FOR 24 Jan 1972 [26 Oct 1970] 50654/70 Heading G1A A system for detecting the presence of a pre-selected object 24, Fig. 2, having a corner cube retro reflector 12 comprises a source of light 9, a curved reflector 10, a pair of concave mirrors 15  and 16 and associated photo-cells 18 and 19 positioned as shown so that when the object 24 is illuminated by the beam one photo-cell 18 has a field of view which includes the radiation reflected from the corner cube, and the other photo-cell 19 has a field of view which substantially excludes the "corner cube" radiation, the fields of view otherwise being substantially the same. The  photo-cells 18 and 19 are connected to a differential amplifier 21 so that a signal output may be used to operate an audio or visual display when the object is within the field of view of the photocell 18. In a further similar embodiment, Fig. 3, the two concave mirrors 15 and 16 are replaced by one concave mirror 35 and a plane mirror 36 arranged as shown. The whole apparatus may be mounted on a platform (44), Fig. 4 (not shown) which is slowly rotated.