baber/WOPTO huggingface dataset:
Patent GB-946644-A (GB)
Title: Steam generating unit
IPC: F22G5/06
Filed: 1962-06-15
Abstract: 946,644. Regulating steam temperature in water-tube steam boilers; automatic control of furnaces. RILEY STOKER CORPORATION. June 15, 1962 [July 27, 1961], No. 23112/62. Headings F4A and F4B. The temperature of superheated steam from a steam generator is regulated by a combination of waste gas recirculation with adjustment of the flame path within the steam generator. A vertical combustion chamber 18 has opposed projections 21, 23 at its lower end and has burners 22, 24 located on the underside of the projections, the direction of the combustion gases issuing from the burners and thus also their flow-path through the chamber 18 being controllable by angularly-adjustable vanes 83, 85, 88, 91. A projecting nose portion 122 in the upper part of the chamber 18 has an opening 124 in its underside through which recirculated flue gases may be introduced into the furnace. Upper and lower drums 25, 27 are connected by downcomer tubes 26 in the rearmost backpass 38 and further downcomer tubes 28 supply water to wall-lining steam generating tubes 31 which discharge into the steam and water drum 25. A radiant superheater 57 is disposed on the front wall 15 of the combustion chamber opposite a radiant reheater 69 on the rear wall 16. Further superheating surfaces 61, 62, 63 are disposed in the forward backpass 37, in the lateral pass 34 above the nose 122, and in the passage 33 between the nose portion and the front wall 15. A convection reheater 73 lies approximately above the outermost part of the nose portion 122. At low load the vanes of the burners are adjusted so that the flame passes up the front wall 15 and considerable quantities of recirculated gas are introduced through the opening 124 and flow down in a low pressure region at the rear of the combustion chamber 18 before mixing with the flame gases (Fig. 2, not shown). At high load, the flame passes up the rear wall (Fig. 3, not shown), so that the superheater surfaces 57, 63 receive less heat and the gases having a longer flow path are cooler on reaching the convection superheater 62. In addition less recirculated gas is introduced at high load. Temperature indicators 113 and 115 in the superheated steam and reheated steam headers respectively are coupled to an automatic control unit 101 associated with which are various hydraulic actuators controlling the positions of the vanes 83, 85, 88, 91 in addition to the air supply and recirculated gas dampers.
Patent GB-672194-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/56
Filed: 1950-09-21
Abstract: 672,194. Axial-flow fans. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 21, 1950 [Nov. 1, 1949], No. 23143/50. Class 110(i) A fan comprises an impeller and rotatably-mounted whirl-imparting vanes housed within an inner casing wall, and an outer casing wall spaced from the inner wall and forming a gas passage therewith.. The constant-speed driving motor 11, Fig. 1,. of the fan is supported by guide vanes 12 from an inner casing wall 13. To prevent instability at low loads, gas is recirculated from the outlet of the fan to the inlet, by way of an opening 22, a space 23 between the inner and outer walls 13, 16 of the casing, and a constricted nozzle 21 which increases the velocity of the gas before reentry. Whirl-imparting vanes 14 in the inlet and dampers 25 in the space 23 are carried by common pivot rods 15 which are operable in unison by means of a rod 18 actuated by a load-responsive piston (not shown). At full load, the vanes 14 are fully open, so that they impart no whirl, whilst the dampers 25 are fully closed, so that no recirculation takes place. As shown in Fig. 5, the dampers 25 have curved segments 30, so shaped that adjacent segments remain almost in contact during slight reductions below maximum load, but are moved increasingly further apart on further reductions of load. Reference has been directed by the Comptroller to Specification 564,686.
Patent GB-493892-A (GB)
Title: Improvements in or relating to electric induction furnaces
IPC: H05B6/28
Filed: 1937-08-24
Abstract: 493,892. Electric induction furnaces. HORSBURGH, G. D. L., TETLEY, F. W., and SWIFT, LEVICK, & SONS, Ltd. Aug. 24, 1937, No. 23160. Drawings to Specification. [Class 39 (iii)] A protective circuit which will be closed by molten metal if a fracture occurs in the crucible is arranged between the inductor coil or a screen arranged between the coil and the charge, and a terminal of a metallic order of electrical conductivity separated from the charge by a layer of refractory material which will become electrically conductive when hot. This terminal may be connected to earth. The protective circuit includes electrical responsive means adapted to close a circuit including a lamp and a main circuit breaker. U.S.A. Specification 1,922,029 is referred to. British Specifications 342,699 and 343,601 also are referred to.
Patent GB-1519415-A (GB)
Title: Device for pumping blood in an extra corporeal system
IPC: A61M60/546
Filed: 1976-06-04
Abstract: 1519415 Rotary positive-displacement machines DR EDUARD FRESENIUS CHEMISCH-PHARMAZEUTISCHE INDUSTRIE KG APPARATEBAU KG 4 June 1976 [9 Aug 1975] 23211/76 Heading F1U A peristaltic roller/hose pump comprises rollers 12; rotatably mounted on arms 10 which are pivotally mounted on a rotor 7 the rollers 12 bearing against one or more hoses 4 which are located in grooves 2, 3 Fig. 2 in a stator 1, and the arms 10 being biased by springs and having adjustable screw stops (14) Fig. 4 (not shown). The hose or hoses 4 may be clamped by clamps 6 operated by thumb screws 5 and the pump is driven by a D.C. electric motor 9 Fig. 3, a manual crank 17 being provided. Electrical circuitry Fig. 7 (not shown) and an associated control panel Fig. 5 (not shown) are provided to enable the pump speed, and hose cross-section to be adjusted and to indicate the liquid flow-rate through the hose.
Patent GB-1429231-A (GB)
Title: Localisation detectors
IPC: G01T1/29
Filed: 1973-05-16
Abstract: 1429231 Semi-conductor devices COMMISSARIAT A L'ENERGIE ATOMIQUE 16 May 1973 [19 May 1972] 23225/73 Heading H1K The semi-conductor body of a device for detecting and locating particulate radiation incident on its front face has on its rear face an ion-implanted resistive layer bearing two or more contacts, implantation being effected through a metal layer of predetermined and uniform thickness, to ensure absolute uniformity of implantation. The metal layer is subsequently removed. The detector may be bar-shaped, with a contact at each end of the rear surface, or disc-shaped, with dot and ring contacts on the rear surface. A further form (Fig. 4, not shown) has a rectangular rear surface with a contact at each of three of the corners: this form allows localization in two perpendicular directions. With the first two types, particle location may rely on a comparison of voltages at the two rear face contacts, or may involve a comparison of the time of particle impact and the time of a pulse on one of the rear contacts, the device having distributed line characteristics. As shown a thin P-type layer 4 is formed on the front face of a high resistivity N-type silicon bar 2 and 20-30 Kev phosphorus ions are implanted at 10<SP>13</SP>-10<SP>15</SP> atoms/cm.<SP>2</SP> over most of the rear face through an aluminium layer (not shown) to produce a resistive layer 10. The device is annealed at below 600 C., provided with a gold film contact 12 on the front face and with two rear contacts 14, 16. The bar thickness is made suitable for the detection of low energy particles when a reverse bias is applied between the gold film 12 and one of contacts 14, 16. In a second embodiment (Fig. 2, not shown) a thicker bar of N-type silicon has 20-30 Kev boron ions implanted through a gold film on to the rear face. Lithium is diffused into the front face and electrically drifted to form a nip structure, which is provided with rear contacts. Annealing occurs during diffusion of the lithium.
Patent GB-651812-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: JOHNSON WILLIAM ARTHUR
IPC: H01Q13/18
Filed: 1948-09-03
Abstract: 651,812. Aerials; coupling arrangements. MINISTER OF SUPPLY. Sept. 3, 1948, No. 23227. [Classes 40 (v) and 40 (vii)] An annular slot aerial comprises a plane conduction surface formed with an annular slot backed by a conductive box enclosing a ' cavity of annular cross-section, coupling with the aerial being effected by one or more loops encircling the magnetic field within the cavity, each loop being formed partly by a conductor projecting into the cavity and partly by the walls of the cavity. As shown in section. in Fig. 1, the metal skin 3 of an aircraft has a circular hole enclosed at the rear by a metallic spinning 6 having a central column 5 supporting a disc 4 in the plane of the skin so forming an annular slot 1 backed by an annular cavity 7. Coupling with the cavity is effected by four loops spaced apart by 90 degrees and fed in phase by a network of coaxial cables, Fig. 2 (not shown). Each loop comprises an extension a-b of the inner conductor of a coaxial terminal fitting 9, a series condenser c formed between a mushroom head on the extension a-b and the adjacent surface of disc 4, a, part b-c of the disc 4, a part c-d of one side wall of the cavity and a part d-a of the bottom of the cavity. By employing four loops a uniform polar diagram in azimuth is obtained. The vertical distribution follows a cosine law when the slot diameter is made less than one wavelength and varies with the diameter for larger slots. With a single coupling loop the polar diagram becomes asymmetrical, and two loops disposed at radially-opposite points may be energized alternately to produce a split beam polar diagram. Alternative coupling loops comprise conductors extending radially from the central column and then downwardly and rearwardly to the back of the cavity. The central column may contain a variable matching condenser through which the loops are fed. In a detailed construction described, suitable for use over a broad band of frequencies, the slot diameter lies between one half and one wavelength throughout the band. In an embodiment described in the Provisional Specification two loops are employed, the condensers c omitted and the conductors extended to connect with the cavity. This embodiment has dimensions producing a narrow-band characteristic.
Patent GB-1468956-A (GB)
Title: Photographic material
IPC: G03C1/62
Filed: 1974-05-24
Abstract: 1468956 Photo-sensitive materials PHILIPS GLOEILAMPENFABRIEKEN NV 24 May 1974 [30 May 1973] 23347/74 Heading G2C A photo-sensitive material for producing metal germ images comprises a support impregnated with or coated with a layer containing an aromatic diazosulphonate, diazocyanide or diazothioether and a sensitizer which has a triplet energy level of at least 30 K cal/mole and which is capable of transferring its energy from this level to the diazonium compound at wavelengths above 500 n.m. Specified diazo compounds are 4-nitrobenzenediazocyanide and 4-methoxy-benzene diazosulphonic acid sodium salt sensitized with Eosin Y, and 3,5-dichloro-4-dimetheylaminophenyldiazothio-t-butyl ether sensitized with Rhodamine B, safranine, Night Blue, Orange G, Sudan Green, Acridine Orange, Nile Blue, Pyronine G, benzil, flavone, camphor quinone, uranine, Eosin Y, Erythresin, Rose Bengale and Crystal Violet. All sensitizers sensitize the material to wavelengths longer than 500 nm. A solution of diazo compound and sensitizer may be applied to a paper support or a glass support with a saponified cellulose acetobutyrate layer to impregnate support or layer. Reversed images are produced if the material is imagewise exposed and physically developed to produce a metal image, uniformly exposing the material, bleaching this image with an acidic bichromate solution, immersing in a nucleating bath containing mercurous nitrate and then physically developing to produce a reversed image.
Patent GB-795543-A (GB)
Title: Improvements in flameproof mounted electric switches
IPC: H01H9/04
Filed: 1955-08-15
Abstract: 795,543. Switch cases. CRABTREE & CO., Ltd., J. A., and MIDDLETON, E. July 20, 1956 [Aug. 15, 1955], No. 23397/55. Class 38 (5). A flameproof enclosure 1 for push-button switches 11 has a wall or partition 2 providing separate terminal and switch chambers 3, 4. Switch-operating buttons 21 are fitted in the switch cover 5 and provided with bushes 26 to engage the switch plungers 27. The switches 11 are mounted on an insulating plate 19 bolted to the floor of the chamber 4. The switch terminals 15 are connected by flexible cables 10a to terminals 10 which are crimped to the cable ends and extend through the wall 2 in insulating bushings 16 and are threaded to receive terminal nuts 18 for the supply leads which can be brought in through conduit entries 7. The flexible cables 10a are long enough to allow the switch mounting plate 19 to be removed from the enclosure without disturbance of terminal connections (Fig. 2).
Patent GB-277335-A (GB)
Title: Threshing machine
IPC: A01F12/46
Filed: 1927-09-06
Abstract: 277,335. Couttolenc, E. Sept. 8, 1926, [Convention date]. Pneumatic separating; reciprocating or oscillating sieves. - Straw after having passed beaters is directed by a curved iron plate 2 against vertically disposed bars 3 that cause the grains, husks, and chaff to fall on to a plate 4 and then on to the sieve 5 while long straw passes on to a sieve 6. The sieve 6 is formed with iron plates 29 made with lips 31 to check long straw clogging the spaces between the plates; notches or recesses 32 are also formed at the front of the plates to permit the ready escape of grain. A plate 33 directs grain passing through the sieve 6 upon the sieve 5. Both sieves 5, 6 are carried in a frame 13 adapted to be rocked by a connection to the upper end of a rocking lever 16 which is connected at its bottom end to a frame carrying the grain cleaning and sorting device. The grain and small material move down a plate 84 through a gate 35 into a duct 36 through which a current of air is drawn by a fan to remove the light impurities. The grain falls on a sieve 37 through which small impurities pass and then passes to a second sieve 38 through which it falls leaving large impurities behind. The cleaned grain is directed by plates 39 to a slot below which a transverse current of air passes to separate the light from the heavy grain. A pivoted plate 44 arranged below the slot may be tilted to discharge the grain to a spout 46 on the desired side of the machine. Swing flaps are arranged to close the outlet ports for the impurities. In a modification the grain is fed from the plate 34 by a rotary feeding device between two rasping plates by which ears are broken up and the grain is then separated from larger and smaller impurities while the light material is carried off by a suction blast.
Patent GB-1125037-A (GB)
Title: Food cutting device
IPC: B26D1/25
Filed: 1967-05-19
Abstract: 1,125,037. Food slicing device. H. A. V. JOHANSSON. 19 May, 1967, No. 23447/67. Heading A4C. A hand operated food cutting device comprises an elongated frame 1, with side member 2, a downwards-bent end member 4 and a handle 8 which forms part of the other end 5; into which frame is contained an upper plate 6 disposed between side members 2 and having a sharp ground cutting edge 7 extending at an angle to the longitudinal axis of the frame and a lower plate 13 disposed between the said side member 2, being adjustable in height, of a resilient material and with its free end edge 15 slightly spaced from cutting edge 7 of the upper plate; the said upper plate is provided with a plurality of slots 20 disposed in parallel relation to the cutting edge 7 through which pass vertical knives 21 which project above the upper surface of plate 6, these knives being mounted on a removable cross member 22 secured to the frame by studs 23 passing through openings 24 in the side members 2. The adjustable means for the lower plate 13 comprises a supporting plate 14, being angularly adjustable between two limits, having lugs 16 engaged, with clearance, in apertures 17 of side member 2 and an upwards abutment 18 directed towards plate 13, and which is adjusted vertically relative to plate 6 by an adjustment screw 19 threaded through plate 14. The surfaces of plates 6 and 13 are ribbed to facilitate guidance of food to be cut through its cutting blades.
Patent GB-690063-A (GB)
Title: Method and apparatus for crimping fibres
IPC: D02G1/12
Filed: 1950-09-27
Abstract: <PICT:0690063/IV (c)/1> An artificial crimp imparted to textile fibres by forcing them under pressure into a crimping zone (see Group IX) is set by passing the mass of crimped fibres into a subsequent zone, and introducing a setting agent under pressure into the fibres in the latter zone at a plurality of spaced points along the path of travel of the fibres so as to maintain uniform temperature and moisture conditions throughout the fibres in that zone.  As shown, scoured and washed wool, in the form of stock wool, carded web or sliver is forced into a tapered crimping chamber 36 and thence into a tapered setting chamber 34 against the resistance of a weighted, hinged discharge door 52.  Setting fluid, such as hot water, which may contain added chemical setting agents, or steam under pressure (for temperatures above 212 DEG  F.), supplied by a pipe 65, is delivered to the crimping chamber through a circumferential passage 43 and radial passages 42, and to the setting chamber through manifolds 60 and radial passages 61.  The supply to each manifold is individually controlled by valves 47 and 64, so as to maintain the fibres at the optimum conditions of moisture and temperature during their passage through the setting chamber.  The emerging fibre, which is characterized by sharp, angular crimps, may be dried, carded and spun in the usual manner. As chemical setting agents, thioglycolic acid and its salts, formaldehyde, or a sulphoxylate formaldehyde may be used. Specification 682,263 is referred to.
Patent GB-599170-A (GB)
Title: Improvements relating to machines for cutting or perforating sheet material
IPC: B26D7/20
Filed: 1945-09-14
Abstract: 599,170. Cutting or perforating machines. CONNOLLY, F. J., and BARRETT, J. E. Sept. 14, 1945, No. 23734. [Classes 31 (i) and 31 (ii)] In a machine for cutting or perforating sheet material, the support for the material comprises a surface formed of numerous points such as are provided by wire card clothing or wire-brush cloth, and the cutting edge or perforating teeth or pins readily pass between the wire points after penetration. A plate element e is overlaid with a wire card which may comprise a fabric foundation f fixed to the place as by adhesive, and upstanding wires g which collectively form. a support for sheet material. A rotary cylinder a is formed with an axial groove in which is fixed a holder b fitted with a cutting blade c, which may have a serrated cutting edge, or with a line or perforating pins. At the moment of deepest penetration, the surface of the holder b rests on or close to the supporting surface, the cylinder a being rotated and the plate e moved correspondingly. In a modification, the plate e may be replaced by a second rotary cylinder. Cutting blades can be used which are fixed to the cylinder a either axially or circumferentially, or perforating pins can be arranged in any way on the surface of the cylinder.
Patent GB-1072739-A (GB)
Title: Improvements in thin film circuits
Inventor: RTH ROGER GEORGE DUCKWO
IPC: H01C17/12
Filed: 1965-03-01
Abstract: A capacitor or resistor is made by vacuum deposition, e.g sputtering, of either (a) simultaneous deposition of Ta and another anodizable metal other than Al or Nb or (b) deposition of a compound of Ta and another anodizable metal other than Al.
Patent GB-1020712-A (GB)
Title: Suction pump strainer suitable for draining very shallow pools of water
Inventor: MCCOLL JOHN ROBERTSON
IPC: F04D29/70
Filed: 1961-07-01
Abstract: A strainer for a self-priming centrifugal pump comprises a tubular member 11, Fig. 1 (not shown) lodged in a cylindrical casing 14 whose peripheral wall 15 is perforated, the lower end of the member being cut obliquely to form an elliptical inlet-opening 12 near to the bottom of the casing whereby liquid can be drawn from a shallow pool. In a modification the casing has a handle at the top.
Patent GB-239230-A (GB)
Abstract: 239,230. Scintilla [Firm of]. Aug. 28, 1924, [Convention date]. Systems, electric.-In a system using a generator having a rotating electromagnet a and having the primary and secondary p, s, of an induction coil wound on a core e, ignition at starting of the engine is effected by connecting the exciting battery d direct through a trembler coil l to the primary p of the coil, the electromagnet a being cut out. A succession of sparks is obtained each time the normal interrupter g opens. Condensers are placed across the interrupte.r and trembler contacts. The switch m, after the engine has started, opens the trembler circuit and connects the battery to the electromagnet.
Patent GB-758009-A (GB)
Title: High-temperature corrosion resistant alloys
IPC: C22C38/40
Filed: 1953-09-01
Abstract: An alloy which is resistant to oxides present in combustion residues of unrefined liquid fuels consists of:  .C.0 - 1.per cent .Cr.10 - 45.per cent .Si.4 - 11.per cent .Ni.0 - 30.per cent .Fe and impurities, the remainder... Up to one half the Cr content may be replaced by an equal proportion of Al and the Si may be wholly or partly replaced by an equal proportion of Al.  One or more of the following, up to a total of 20 per cent, may also be present in the alloy: up to 5 per cent W; up to 5 per cent Mo; up to 2 per cent V; up to 2 per cent Ti; up to 5 per cent Ta; up to 5 per cent Nb; up to 0,5 per cent B; up to 20 per cent Co.  The alloy stated to be particularly suitable for valves, nozzles, combustion chambers, regenerators and turbine blades of gas turbines.  Articles made of Fe, Ni, Cr, Co, W, Mo or their alloys or of ceramic or carbon may be coated with the alloy by spraying, hot dipping or sintering (see Group XXII) or, in the case of articles made of austenitic or ferritic steel, by heating the article embedded in an alloy powder containing 25 to 60 per cent Cr and 4 to 25 per cent Ni.
Patent GB-1021438-A (GB)
Title: Ferrosilicon alloys
IPC: C22C35/00
Filed: 1964-06-11
Abstract: An alloy consists of: Si 10-13%, Cr 0.2-10%, U 0-5%, Ni 0.5-2% and/or Cu 0.2-10%, Fe the remainder, the sum of the Si and Cr contents not exceeding 21% and the sum of the Ni and Cu contents not exceeding 10%. The alloy is particularly suitable for the production of the solid particles forming a heavy medium for use in mineral separation.