baber/WOPTO huggingface dataset:
Patent GB-685763-A (GB)
Title: Improvements in or relating to blending system
IPC: B65G69/10
Filed: 1949-08-09
Abstract: 685,763. Mixing appliances. HEWITT-ROBINS, Inc. Aug. 9, 1949 [Aug. 18, 1948], No. 20681/49. Class 86 [Also in Group XXX] Coal or other material to be blended is laid down by a tripper 17 in horizontal layers on the floor of an enclosure comprising side walls 2, 3 and an end wall 1 (Fig. 1 and 3) built up to form a slope 5 at the angle of repose of the material. A tunnel 11 communicates with the enclosure by means of a slot 10 in the floor 8 closed by angle irons 12 extending across the slot. A rake mechanism 24 on a self-propelled carriage 20 removes material from the face of the pile 6 and delivers it to screw conveyers 26, 27 on the carriage which deliver the material to a gap in the angle irons 12. The material then falls through the gap on to a belt conveyer 31 in the tunnel 11, a hopper 30 mounted on wheels being moved in synchronism with the carriage 20 to direct the material on to the belt. The angle irons 12 are automatically moved by means shown in Figs. 5 and 6 so' that the gap in the angle irons moves in synchronism with the carriage. The means comprises hooks 40 adapted to engage dimples 70 in the angle irons 12 and pivoted at 43 to arms 41 on a member 45 guided by a roller 46 to slide relatively to the carriage 20 and carrying racks 47. Further arms 65 have pin-and-slot connections 67, 68 with the hooks 40 and are mounted on a sliding rack 55. The racks 47, 55 are driven by pinions 49, 56 respectively, connected to shafts 52, 57 the pinion 49 being connected to its shaft by a lost motion connection 51, 51<SP>1</SP>. The shafts 52, 57 are driven from a single motor which is started by a switch 78, Fig. 6, when a lever 77 pivoted at 76 to the carriage 20 falls, by reason of the motion of the carriage, into the gap in the rails. The rack 55 is then moved to raise the hooks 40 and, after the lost motion 51, 51<SP>1</SP> is taken up, the member 45 moves with the rack 55 to move the hooks 40 to the position shown in broken lines in Fig. 4. The motor is then reversed by a limit switch to lower the hooks 40 and draw an angle iron 12' across the gap, a further limit switch stopping the motor at the end of this motion. In an alternative means of moving-the angle irons 12 endless chains mounted on the hopper 30 and carrying projections adapted to engage projections at the ends of the angle irons 12 to move them over the gap are operated in response to movement of the hopper. The angle irons 12 carry at their ends small plates 72 upon which they slide and which hold the trailing edge of each iron slightly raised to ensure that the irons overlap to form an effective seal. Specification 534,034, [Group, XXX], is referred to.
Patent GB-531290-A (GB)
Title: Improved manufacture of cementitious or concrete products or the like
IPC: C04B22/12
Filed: 1939-07-17
Abstract: 531,290. Concrete. LIGNOCRETE, Ltd., and CASE, G. O. July 17, 1939, No. 20711. [Class 22] In making a concrete mixture a solution of rock salt is added to the mixture of ordinary aggregate such as sand, stones and the like and cementitious medium. Thus a 'mixture of sand and Portland or alumina cement is wetted with a 7-12 degrees BaumÚ solution of rock salt. Specification 516,691 is referred to.
Patent GB-496694-A (GB)
Title: Implement for the use of fire brigades for opening fastened doors or windows in an emergency
IPC: A62B3/00
Filed: 1937-07-28
Abstract: 496,694. Prizing - tools. MORRIS & SONS, Ltd., J., and MUNDY, W. E. July 28, 1937, No. 20859. [Class 61 (ii)] A device for forcing open fastened windows or doors comprises two relatively sliding plates a, b with end flanges a<1>, b<1> and connected together by a pivot stud c passing through a hole in the plate b and a slot a<2> in the plate a on which stud c is pivoted a cam disc d haying a cam edge d<1> engaging behind the flange a<1> of the plate a and operated by a lever e secured to the cam by a screw stud e<1> and having a projecting stud e<3> engaging a hole in the cam. In use, as shown in Fig. 4, the flanges a<1>, b<1> are engaged respectively with the'face of the door A and against the face B<1> of the recess in the door jamb B and the door is forced open by the cam when the lever is operated, the pin- and-slot connection allowing tilting of the plate a if the door is forced out of the vertical plane. In the modification shown in Fig. 13, the cam disc dx is in one with the handle ex and has a hole d<2>x for the pivot stud.
Patent GB-1386284-A (GB)
Title: Process and device for the utilisation of high temperature thermal energy particularly of nuclear origin
IPC: C01B13/02
Filed: 1972-05-04
Abstract: 1386284 Oxygen; hydrogen GAZ DE FRANCE 4 May 1972 [4 May 1971] 20887/72 Heading ClA [Also in Division G6] Oxygen and hydrogen are obtained by using a high temperature heat source, e.g. metallic tin coolant from a nuclear reactor, to melt stannic oxide at about 1700‹ C. and decompose it into stannous oxide and oxygen; the oxygen is withdrawn and the stannous oxide cooled to 700‹ C., decomposing into stannic oxide and liquid tin which are separated; the stannic oxide is recycled and the liquid tin reacted with steam to obtain hydrogen and further stannic oxide. A suitable installation is described with reference to drawings.
Patent GB-412781-A (GB)
Title: Improvements relating to means for varying the compression ratio of internal combustion engines
IPC: F02B75/04
Filed: 1933-07-26
Abstract: 412,781. Connecting-rods. VITALBA, L., 15, Via Goito, Turin, Italy. July 26, 1933, No. 21060. [Class 122 (i).] To vary the compressionratio of an internal-combustion engine while running, on eccentric bush 15, arranged between the gudgeon pin 17 and the piston, has means by which it can be rotated when the piston is near the bottom of its stroke. These means comprise stops which engage with corresponding stops on discs 18 rotatable, in the cylinder or crank-case, by hand or barometric control. In a multicylinder engine, all the discs 18 are geared together to rotate in unison.
Patent GB-1300033-A (GB)
Title: Integrated circuits
Inventor: SHAO TZU FANN
IPC: H01L23/535
Filed: 1971-04-19
Abstract: 1300033 Semi-conductor devices TEXAS INSTRUMENTS Inc 19 April 1971 [13 Feb 1970] 21262/71 Heading H1K In an integrated circuit comprising a plurality of mesas on a semi-conductor substrate 11 of opposite conductivity type to at least the lower parts of the mesas, low resistivity regions 12 forming PN junctions with the substrate 11 are provided beneath the mesas and the grooves 16, 17 surrounding the mesas, electrical contact being established to the regions 12 through windows in an insulating layer 19 lining the grooves 16, 17. At least some of the mesas contain circuit components such as transistors, diodes and resistors. In the Si integrated circuit described the P type substrate 11 is B-doped and has a (100) orientation. An N type epitaxial layer 13 is deposited thereon after selective diffusion of As to form N+ regions 12, and B is then diffused non-selectively to form a P type surface layer 14. The grooves 16, 17 are formed using an anisotropic etchant, and circuit elements are formed in the mesas so formed. In a modification the circuit elements are formed by selective diffusion before the mesa configuration is produced by etching.
Patent GB-715959-A (GB)
Title: A process of coating metal, especially iron, with aluminium
IPC: C23C2/12
Filed: 1951-09-10
Abstract: Metal, particularly wire or sheet metal, is passed through a solution of zinc chloride and one or more of lead, cadmium and stannous chlorides and then passed through or immersed in molten aluminium. The solution may also contain pure hydrochloric acid. Specification 673,016 is referred to.
Patent GB-1219732-A (GB)
Title: Deicing control apparatus for forced air refrigeration systems
IPC: F24F11/02
Filed: 1969-04-25
Abstract: 1,219,732. Defrosting. RANCO Inc. 25 April, 1969 [14 May, 1968], No. 21360/69. Heading F4H. [Also in Division G3] An air chilling unit in a refrigeration system is defrosted when differential air pressure as detected by a pair of temperature sensitive resistors exceeds a determined value. A bridge network includes resistors 52, 53, 56 and temperature sensitive resistors 61, 62 situated in passages 80, 82 of a fluid amplifier element 72. In normal operation inlet air to chamber 75 discharges equally through passages 80, 82 hence cooling resistors 61, 62 equally, but low pressure on the discharge side (12) of the cooler causes resistor 61 to be cooled more than resistor 62 hence rendering transistors 50, 42 conductive thus energizing a relay 42, 35 which energizes a defrosting heater 26 and disconnects a compressor motor 21. Further contacts 65 hold transistor 42 conductive until a thermostat 70 responsive to cooler temperature opens. A capacitor 63 prevents transients from triggering transistor 50, and a resistor R2 provides regenerative feedback.
Patent GB-930831-A (GB)
Title: Improvements in or relating to electrolytic cells for the production of aluminium
IPC: C25C3/16
Filed: 1959-06-22
Abstract: 930,831. Electrolytic apparatus. BRITISH ALUMINIUM CO. Ltd. June 22, 1959 [June 24, 1958], No. 21367/59. Drawings to Specification. Class 41. An electrolytic cell for the production of aluminium comprises refractory side and end walls and a floor of refractory material defining a chamber adapted to contain a pool of molten aluminium in the lower part thereof and a body of molten electrolyte above and in contact with the pool of molten aluminium, the side walls being longer than the end walls, at least one anode member disposed at least partially within the chamber and adapted to be in contact with the molten electrolyte and a plurality of cathodic current-conducting elements arranged in a row connected to a common cathode bus-bar and extending across the shortest horizontal dimension of the cell, one extremity of each cathodic current-conducting element extending into said lower part of the chamber to contact the pool of molten aluminium, at least the surface of said extremity adapted to contact the molten aluminium consisting essentially of a refractory hard metal. The expression " refractory hard metal " is defined as a material possessing a low electrical resistivity, a low solubility in molten aluminium and molten electrolyte under cell operating conditions, good stability under conditions existing at the cathode of a reduction cell, and which is wettable by molten aluminium under cell operating conditions. Preferred refractory hard metals are the carbides and borides of titanium, zirconium, tantalum and niobium, and mixtures thereof. The cells may be constructed with a metal shell, e.g. steel within which is an insulating lining such as alumina, bauxite, clay or aluminium silicate bricks and within that lining may be the refractory lining of for instance carbon, alumina, fused alumina, silicon carbide or silicon nitritebonded silicon carbide. The subject-matter of Specification 930,832 is disclaimed. Specification 917,350 also is referred to. Reference has been directed by the Comptroller to Specification 802,905.
Patent GB-460599-A (GB)
Title: Improvements in colour photography
Filed: 1935-07-27
Abstract: Iso-oxazolones are prepared by reacting acyl-acetic acid esters with hydroxylamine in alkaline solution.  For example, phenylene-bis-iso-oxazolone is formed by treating terephthaloylacetic acid ester with hydroxylamine hydrochloride in caustic soda and precipitating the product with acetic acid.
Patent GB-169849-A (GB)
Title: Improvements in or connected with wireless directional transmission and reception apparatus
IPC: G01S1/02
Filed: 1920-07-16
Abstract: 169,849. Gill, T. H. July 16, 1920. Directive signalling.-In wireless directional apparatus of the type in which a directional aerial system, such as two loop aerials 6, 8 and 5, 7 or two pairs of oppositely open aerials, are arranged at right-angles to one another and connected to a closed ring-wound coil 9, a rotatable open-ended coil 14, or a closed ring-wound coil, is coupled inductively to the coil 9 but not connected thereto. The terminals of the coil 14 may be connected to transmitting apparatus, as shown, or to reception apparatus.
Patent GB-1464874-A (GB)
Title: Liquid level control system
IPC: G05D9/12
Filed: 1974-04-30
Abstract: 1464874 Liquid level control HOROBIN ELECTRICS Ltd 30 April 1974 [5 May 1973] 21482/73 Heading G1H A system for controlling the liquid level in a reservoir comprises liquid level detecting means 10 in the form of an electrically insulating plastics tube, e.g. of p.v.c., to be positioned in the reservoir, the tube having a closed lower end and longitudinally spaced contacts 1, 2, 3 disposed on or in its center surface, the contacts being connected to wires running within the tube, which may be filled with a bitumen based insulating compound, to a switching circuit for energizing at least two pump circuits C of one or more pumps for draining the reservoir, the switching circuit including a changeover device such as solenoid SOL1 whereby each circuit C is energized in turn to equalise use of the circuits. As shown when the liquid level rises to contact 1, transistor TR1 is switched to energize relay RLY I and connect relay RLY2 to transistor TR2. When the level rises to contact 2, transistor TR2 is switched to energize relay RLY2 and thus solenoid SOL1 to energize one of the circuits C. When contact 3 is reached transistor TR3 energizes relay RLY3 to over-ride the solenoid so that both circuits are energized, and are de-energized when the liquid level falls back to contact 1.
Patent GB-933539-A (GB)
IPC: F25D25/02
Filed: 1962-06-04
Abstract: 933,539. Shelves. LICENTIA PATENTVERWALTUNGSG.m.b.H. June 4, 1962 [June 26, 1961], No. 21496/62. Class 52 (1). A foldable shelf for a refrigerator or other cabinet is formed of two plates 4, 5 joined by a hinge member of rubber or like material and having slots 2, 3 to embrace the edges of the plates which are cemented therein. The member is slotted at 7 so that the hinge may be lifted to fold the shelf for removal from the cabinet.
Patent GB-861724-A (GB)
Title: Method and apparatus for facsimile telegnosis
Inventor: MARZAN PETER R
IPC: H04N1/407
Filed: 1958-07-04
Abstract: 861,724. Copying telegraphy. TIMES FACSIMILE CORPORATION July 4, 1958, No. 21500/58. Class 40(3) Apparatus for the reproduction of a picture having a high degree of contrast, such as an X-ray film, employing a light spot moved in a scanning pattern over the picture to scan it in successive elemental areas to derive electrical signals representative of the shades of the areas includes an arrangement to vary the intensity of the light spot automatically and concurrently with the degree of shade of the area being scanned in such a way that the range of the output signals is reduced whilst maintaining a substantially linear relation between incremental changes in shade density and incremental changes in the said output signals. A transparent drum 10 carrying the picture 11 is driven through gearing 16 from a motor 15 and carries a half nut 18 engaging a threaded shaft 12 to traverse the drum 10 relative to a scanning head comprising an encased photo tube 23 and a light source 20 in a casing 19 with an apertured face 24. The picture signals are passed to a bridge modulator 25 fed with an audio frequency carrier from a source 26, and the modulated carrier is fed back through an amplifier 41, demodulator 42 and filter 43 to an amplifier 44 by which the intensity of the lamp 20 is varied inversely with respect to the input to the amplifier 44. The falling characteristic impressed on the lamp 20 is arranged to be linear as indicated by the line A, Fig. 2, and by the arrangement shown the range of output current passed over the output lines 28 to the receiver station 29 in respect of a high density D5 and a low density D1, corresponding respectively to nearly opaque and almost transparent areas of the original, is reduced from a-x to a-b. The picture is reproduced by a modulated discharge lamp 32 in association with a sensitive sheet 34 on a drum 35 moved synchronously with the transmitter drum 10.
Patent GB-854599-A (GB)
Title: Improvements in or relating to geophysical prospecting
IPC: G01V3/12
Filed: 1958-07-04
Abstract: 854,599. Radar. STACKHOUSE, A. M. July 4, 1958 [July 16, 1957], No. 21505/58. Drawings to Specification. Class 40(7). In order to determine the most suitable frequency of electromagnetic radiation to employ in exploring a region for mineral or oil deposits a first signal having a swept frequency is transmitted to a corresponding and spaced first receiver, a second signal of the same form but modulating a very high frequency (v.h.f.) carrier is transmitted simultaneously to a second receiver adjoining the first, and the first receiver and demodulated second receiver outputs are compared. The comparison is examined for substantial phase change thus indicating anomalies between the earth's surface and subterranean deposits. The first signal is generated by mixing a sine wave oscillation repetitively sweeping between 10 and 11 mc/s. with a fixed 10 mc/s. sine wave, filtering the resultant wave from a very low frequency to 1 mc/s. and triangular wave shaping of the filter output, a synchronizing pulse preceding each frequency sweep, Fig. 1 (not shown). The first signal frequency modulates a v.h.f. transmitter radiating via a directive aerial. At the receiving point the first signal and demodulated second signal are each used to deflect a trace of a cathode-ray oscillograph (C.R.O.) whose time-base is triggered by the synchronizing pulse in the first signal, Fig. 2 (not shown). The C.R.O. display may be expanded to investigate consecutively decade ranges of frequency in the band 0 - 1 mc/s., and may be photographed. A phase detector feeding an indicator or recorder is also provided. The depth of a detected mineral layer may be determined from a measurement of the distance between receiving points at which there are mills of phase difference on a chosen frequency. Single side-band or suppressed carrier modulation may replace frequency modulation of the v.h.f. carrier.
Patent GB-1441484-A (GB)
Title: Locking arrangement for bearing rings
IPC: F16B21/18
Filed: 1974-05-15
Abstract: 1441484 Friction couplings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 15 May 1974 [4 June 1973] 21512/74 Heading F2U The inner race 2 of a bearing 1 is frictionally coupled to a shaft 3 by means of a split ring 8 in an inner groove 6 in a sleeve 15 of the race 2, the split ring being deformed to effect the coupling, being resilient and having two tapered portions 9, each defined by an inner cylindrical surface whose axis coincides with that of shaft 3 and an outer surface, also part of a cylindrical surface, whose axis is eccentric to that of shaft 3, these tapered portions being joined by a portion 12 having a groove 15 and defining tapering regions 16 between themselves and the base of groove 6. In tapering regions 16 are elements each comprising a U-shaped portion 18 whose base has an inner surface corresponding to the external surface of a tapered portion 9, and an external surface corresponding to the base of groove 6. The elements also have tongues 20 which lie against the end of sleeve 5 of the race 2 so that the elements can be moved round region 16 to force the portions 9 of the ring against shaft 3, which movement also forces the portion 12 against the sleeve 5 (due to the presence of groove 15) to thereby effect the coupling.
Patent GB-1281421-A (GB)
Title: Improvements in or relating to explosive charges
IPC: C06C5/04
Filed: 1970-05-05
Abstract: 1281421 Explosive charges FRANCE ARMED FORCES MINISTER OF 5 May 1970 [5 May 1969] 21667/70 Heading F3A An explosive charge for rock cutting comprises a flexible sheath 2, Fig. 2, containing a fluent explosive charge 1, Fig. 2, and a detonating fuse 3 made fast to the sheath at the end regions of the latter and extending beyond the sheath at at least one end. The charge is tamped in a borehole 7 with gravel 8 and sand 9. In another embodiment, Fig. 8, the charge is in the form of a continuous length, comprised by sheaths adhesively joined end to end. The charge is divided into individual lengths by nipping the sheath 22 at two points, distance d apart, severing the sheath between the nips, expelling the explosive 21, and effecting ligatures 24. The explosive charge comprises ammonium nitrate and fuel, and is granular or in the form of a slurry. Wood flour or sodium chloride is incorporated in the charge as diluent. The sheath is made of polyethylene, polyvinyl chloride or a copolymer of vinyl chloride and vinylidene chloride. In a method of making the charge, the sheath 3, Fig. 4, or a series of sheaths (Figs. 6 and 7, not shown) are inflated by advancing a pneumatic tube 12 along the sheath or sheaths. The detonating fuse 3 is entrained in the air flow owing to a member 3, and is carried to the other end of the sheath or each of the sheaths in the series and fastened thereto. Explosive material is then pneumatically fed through the tube 12 into the sheath or sheaths during a return movement of the tube.
Patent GB-243113-A (GB)
Title: Improvements relating to the treatment of liquids
IPC: B01D11/04
Filed: 1924-09-13
Abstract: 243,113. Smith, T. A. Sept. 13, 1924. Mineral oils, purifying.- In treating a liquid by successive intermixture with another liquid of different density and by successive discharge of the mixed liquids into a series of gravity separators a, a<1>, a<2> from which they are separately withdrawn, the successive intermixture of the liquids is obtained in and by pumps b, b<1>, b<2>. The liquids circulate in counter-current, and the delivery pipe d of each pump is divided so that part of the mixed liquids passes to the separator from which the less dense liquid is derived and part to the separator from which the denser liquid is derived.
Patent GB-891053-A (GB)
Title: Separation of dust from hot gas
IPC: B01D50/00
Filed: 1960-06-21
Abstract: 891,053. Converters. PRAT, J. E. June 21, 1960, No. 21788/60. Class 72. [Also in Group XXVIII] Plant for the recovery of metal dust discharged during the blowing period of a converter S comprises a hood A surmounting the blower and into which ambient air is drawn through openings 4, 5 and 6 by a fan E to assist in oxidation of metal dust and in cooling thereof, a plurality of vertical refractory-walled ducts 9 within a tower B and down which dust-laden gas passes during a blowing period and up which ambient air passes during a non-blowing period to remove previously deposited dust, a water spray tower C wherein the temperature of the dust-laden mixture of air and gas is reduced to just above the dew point and below that permissible for subsequent filtration in a filter bag chamber D.
Patent GB-121965-A (GB)
Title: Improvements in Driving Mechanism for Motor Vehicles.
Inventor: KANE EDMUND JOSEPH
IPC: B60K17/24
Filed: 1918-12-30
Abstract: 121,965. Kane, E. J. Dec. 31, 1917, [Convention date]. Axle structures.-The rear axle of a tractor is enclosed in a casing 51 formed on its lower sides with bearings for the driving-worms and provided with bearings 57, 61 for the hub extensions 62.