baber/WOPTO huggingface dataset:
Patent GB-1457208-A (GB)
Title: System for reducing pollutants in engine exhaust gas
IPC: F01N3/26
Filed: 1974-08-06
Abstract: 1457208 Treating exhaust gases by combustion NISSAN MOTOR CO Ltd 6 Aug 1974 [17 Aug 1973] 34499/74 Heading F4B [Also in Divisions B1 and F1] An I.C. engine with means to reduce the concentration of harmful substances in its exhaust gas before emission to the atmosphere and having an even number of combustion chambers 11 to 14 and comprising a first exhaust manifold 40 in communication with a first group of combustion chambers 13, 14 consisting of one half of said combustion chambers (which are fired in succession) and having an outlet 43; and a second exhaust manifold 50 in communication with a second group consisting of the remaining combustion chambers 11, 12 which are also fired in succession, there being means which act so that the first manifold 40 discharges gas richer in unburned fuel and carbon monoxide and weaker in air than the exhaust gas discharged from the second manifold 50. The outlets 43, 53 of the manifolds 40, 50 communicate respectively with inlets 65, 66 to a reaction chamber 63 in a thermal reactor 60 which has a discharge port 71 through which harmless oxides arising from reaction between unburned fuel and carbon monoxide of the first exhaust gas with the air of the second exhaust gas are discharged. The manifold 40 may be supplied with exhaust gas from combustion chambers 13, 14, richer in hydrocarbons and carbon monoxide than that leaving combustion chambers 11, 12, by supplying the former cylinders with richer mixture than is supplied to the latter, either by carburettors 25, 26 or by fuel injection equipment. A1- ternatively the mixture supplied to each combustion chamber may be the same (weaker than stoichiometric) and fuel may be supplied to the the manifold 40 by duct 82 and injectors 81. When the engine load falls below a predetermined value and the temperature of the first exhaust gas is too low to achieve the desired reactions in reactor 60, air is supplied via a duct 92 and nozzles 91 to cause some of the unburned fuel and carbon monoxide to burn in the manifold 40. At the same time the first exhaust gas is preferably further enriched with fuel either by controlling the air fuel ratio of the mixture supplied to combustion chamber 13, 14 or by regulating the fuel supply rate to the injectors 81 where these are provided. In the thermal reactor of Fig. 1, the reaction chamber 63 is kept hot by the hot gases passing through space 64 surrounding inner body 62. In Fig. 2 (not shown) insulating material (74) is provided between inner and outer bodies 62, 61. In Fig. 3 (not shown) the thermal reactor is formed so that the major portion of the inner body (62A) is surrounded by relatively low temperature first exhaust gas preventing it from becoming excessively hot.
Patent GB-406445-A (GB)
Title: Improvements in chromates and protectives
IPC: C09C1/20
Filed: 1932-12-06
Abstract: Chromates for use as anti-corrosion agents are precipitated by adding lead nitrate or the nitrate of a metal the oxide of which is substantially insoluble and is more basic than lead oxide to an excess of sodium or potassium chromate.  In addition to lead nitrate, the nitrates of barium, strontium, calcium, and zinc are specified. Precipitation is preferably effected at the boiling point of the solutions used.  A statement of the art refers, inter alia, to the addition of powdered metallic zinc to barium chromate; to the subjection of red lead to the action of a chromate solution; and to the treatment of pigments with potassium bichromate.
Patent GB-946606-A (GB)
Title: Improvements in or relating to rail crossing assemblies
Inventor: SOULSBY NORMAN HENRY
IPC: E01B7/12
Filed: 1961-09-27
Abstract: 946,606. Railway crossings. WILLIAM JONES Ltd. Aug. 15, 1962 [Sept. 27, 1961], No. 34593/61. Heading E1G. In a rail crossing assembly all the joints between rails and spacing blocks are welded. The spliced ends of stock rails 1 and 2 are welded to the sides of a tapered nose section 6 by welds 9 and 10 and plug welds 11. Blocks 12 spacing the rails 1, 2 from wing rails 4 A, 5A are welded to the wing and stock rails respectively by welds 13 and 14. Spacing blocks 15 and 16 are welded to the nose section 6 by welds similar to welds 9 and 10 and to the wing rails by plug welds 17, 18. A block 19 is welded to the main sections 4B, 5B of the wing rails by plug welds 20, these sections being aligned with rails 2 and 1 respectively. The profile of the nose section can be varied to accommodate bull-head rails.
Patent GB-745329-A (GB)
Title: Improvements in posts, poles and the like
IPC: E04H12/12
Filed: 1953-12-11
Abstract: 745,329. Posts. DEL CHIOCCA, B. Dec. 11, 1953 [Dec. 12, 1952], No. 34596/53. Class 20(1). A pole adapted for supporting a lamp or sign comprises a plurality of sheet members 1 assembled together to form a casing in which is a filling 3 of concrete, the longitudinal edges 2 of the members 1 being turned inwardly so that the adjacent edges 2 of adjoining members 1 form internal ribs which are embedded in and held together by the concrete 3. The members 1 may be flat, curved, or L-shaped, and may have longitudinal folds intermediate their edges to provide additional internal ribs. The members 1 may taper longitudinally and may be of metal or a synthetic resin. The edges 2 may be apertured to permit the concrete 3 to extend through the ribs, and are turned out at 7 to provide further hold on the concrete 3, which may be apertured longitudinally as at 4, e.g. to provide a conduit for electric leads. The cavity 4 may be formed by a core, e.g. of synthetic resin. The pole may be pre-constructed in the factory, or the members 1 may be temporarily held in erected position on the site, e.g. by flexible clamps, and the concrete cast in the casing so formed.
Patent GB-1021559-A (GB)
Title: Sealing device
IPC: F04B39/04
Filed: 1964-08-24
Abstract: 1,021,559. Seals. INGERSOLL-RAND CO. Aug. 24, 1964 [Sept. 6, 1963; Oct. 4, 1963], No. 34607/64. Heading F2B.  A seal for a plunger 14 of a compressor or pump comprises a ring 20 which is of predetermined modulus of elasticity and provided with predetermined inner and outer surface areas so that fluid pressure P 0  acting on the outer surface and fluid pressure P i  acting on the inner surface cause a predetermined dynamic elastic deformation C, Fig. 6 of the ring to reduce the clearance between the ring and plunger without causing engagement. The ring is held in position by a cup 22 and cover 24. Cemented tungsten carbide may be used as the material for high pressure conditions. The inner and outer surfaces may be tapered, Figs. 7 and 8 (not shown), to compensate for deformation and, if desired, the ring may be formed in two segments 34, Figs. 9A and 9B (not shown), held together by a garter spring 38. Several rings may be employed in series along the plunger so that the fluid pressure is reduced step-by-step.
Patent GB-1513194-A (GB)
Title: Cored polymer particles and their production
IPC: C08L33/02
Filed: 1976-08-19
Abstract: 1513194 Cored nitrile polymer particles RHONE-POULENC INDUSTRIES 19 Aug 1976 [22 Aug 1975] 34619/76 Heading C3P A latex comprises an aqueous dispersion of cored polymer particles having a uniform diameter of 0-2 to 2 Ám., the particles comprising 50-90 wt. per cent of a core polymer which is a vinyl or vinylidene homopolymer, or a copolymer of a vinyl or vinylidene monomer with less than 15 wt. per cent of a diene, and 10-50 wt. per cent of a shell polymer which is a copolymer of a vinyl, vinylidene or diene monomer, with a monomer containing cyano groups. The preferred mode of preparation is by means of a two stage polymerization process in which the first stage (for the core) is effected in aqueous emulsion with an emulsifier and a water soluble initiator, and in which the second stage involves continuous addition of the requisite monomer(s), emulsifier, and initiator. Preferred cyano monomers are (meth)acrylonitrile, ethacrylonitrile, crotylnitrile and cinnamyl nitrile.
Patent GB-176505-A (GB)
Title: Improvements in and relating to desks, tables and the like
IPC: A47B13/08
Filed: 1920-12-08
Abstract: 176,505. Sever, H. S. Dec. 8, 1920. Counters are provided with removable sheets of glass 2 flush with the main surface 1 and resting on a strip of baize within a recess which may be slightly wider at the back edge 4 than at the front edge. The glass is lifted by means of the finger holes 3, the back edge being rounded to act like a hinge, and the edge 4 of the recess being hollowed out to correspond. The borders 7 of the recess may be slightly raised to provide a space between the glass and the baize within which memoranda &c. 6 may be housed. In a modified form the glass is provided with enlargements 8 which act as pivots.
Patent GB-455682-A (GB)
Title: Improvements relating to sound reproducing devices
IPC: H04R15/00
Filed: 1935-12-13
Abstract: 455,682. Sound-transmitting devices; loud-speakers. CHRISTENSON, O., 108, E. Madison Street, Baltimore, U.S.A. Dec. 13, 1935, No. 34644. [Class 40 (iv)] A sound-reproducing device comprises a diaphragm rigidly connected to a magneto-strictive member in the form of a plate maintained under a compressive or tensile stress and subjected to changes caused by magneto - striction. The magneto-strictive plate is constituted by a sheet 30 of zinc soldered to a sheet 31 of nickel or of a cobalt-iron alloy which are pressed together when at a temperature sufficient to melt the solder and allowed to cool so that the plate 31 is subjected to permanent compressive stress. Alternatively, a sheet of an iron-nickel alloy may be secured to a sheet of the alloy known under the Registered Trade Mark " Invar " at a high temperature so that the cooled plate is under a permanent tensile stress. The magneto-strictive plate passes through formers on which the speech coils 45, 46 are wound and is held between blocks 17<a> of soft steel, the lower blocks being carried on the polepieces 17 of a permanent magnet 15 located in a groove 11<a> in the base of the casing 11 which houses the unit. A rubber strip 35 is interposed between the plate 30 and the upper blocks 17<a> and the assembly is clamped to the casing by screws 16. A diaphragm 62 supported by a flexible ring 63 is secured to the magneto-strictive plate 30, 31 by a bolt 14. In a modification, Fig. 7, applied to a loudspeaker, the bolt 14 passes through a hole in the cover 12 of the casing and is secured by plates 67, 68 to a cone diaphragm 65 having a flat apex portion. The lower supporting block 17b has a tapered lip 75 and the plate 30<a>, 31 is formed with an inclined end 76 to facilitate the clamping of the plate and to increase its flexural characteristic. Opposite faces of the plate are cushioned by rubber washers. The magneto-strictive plate may be formed by a single sheet of metal or alloy mounted in the casing so that it is subjected to tensile or compressive stress. The sheet 30 may be of lead, tin, aluminium, or of an alloy known as herculoy comprising zinc, copper, silicon and tin, in lieu of zinc. Each coil former comprises insulating plates 22, 23 joined by an apertured core 24 and having reduced ends 25, 25<a> connected by insulating blocks 26 provided with holes for screws 28 securing the former to the base member 10.
Patent GB-1442317-A (GB)
Title: Apparatus for shaping a glass sheet
IPC: C03B23/031
Filed: 1973-07-20
Abstract: 1442317 Bending glass sheets TRIPLEX SAFETY GLASS CO Ltd 11 July 1974 [20 July 1973] 34704/73 Heading C1M Apparatus for bending glass sheets includes an enclosure 17 tiltable between a vertical and a near vertical position, rollers 13, 18 contained within and movable with the enclosure 17, glass bending dies 15, 16 and tongs 22 for gripping a glass sheet. The female die 15 has a broken outline so that it can pass through the rollers 18. In use, a glass sheet is delivered to the enclosure 17 from a furnace 1 on a carriage 12 at an angle of 5 degrees to the vertical while the enclosure is tilted at a similar angle. The sheet is lifted off the carriage 12 by cylindrical or spatulate fingers mounted on the female die. The dies then move inwardly to bend the sheet while the enclosure tilts to the vertical. The sheet is then gripped by the tongs 22. The dies can then be retracted and the enclosure tilted back to the near vertical position while the tongs lower the sheet into a tempering apparatus 26, 27. Control circuits are described.
Patent GB-1048889-A (GB)
Title: Process for the production of aromatic hydro-carbons
Inventor: LOSSE ANNEROSE
IPC: C07C1/207
Filed: 1964-08-25
Abstract: Aromatic hydrocarbons are obtained by contacting a C2-C5 aldehyde in the gaseous phase at 150-250 DEG  C. with a basic condensation agent and passing the product over a dehydration catalyst.  The condensation agent may be a salt of a carboxylic acid with an alkali metal or ammonium or substituted ammonium. Dehydration is preferably effected without intermediate steps at 300-600 DEG  C. over an alumino-silicate, alumina or a mixture of alumina an oxide of a metal of Groups 6-8. An inert gas or water may be present.  The principal products are benzene, toluene, o- and p-xylenes and trimethylbenzenes.  Examples describe the use of acetaldehyde, crotonaldehyde and mixtures thereof.
Patent GB-1180558-A (GB)
Title: Improvements in or relating to Fluid-Flow Indicators
IPC: G01P13/00
Filed: 1966-08-03
Abstract: 1,180,558. Measuring fluid flow. B. RHODES & SON Ltd., J. H. BROWN and V. G. H. HAMBER. July 31, 1967 [Aug. 3, 1966], No. 34815/66. Heading G1R. In a fluid flow indicating device a member 6 disposed within a pipe 1 has a large bone 7 leading to a smaller bone 8, upstream of a shoulder 10 where a fluid pressure higher than that of the fluid flow is built up, forming a jet orifice from which part or all of the fluid flow is projected at right angles to the side wall on to a transparent domeshaped cover 14. A further bone 9 may be provided in the member 6 and only part of the fluid flow passes through the jet orifice 8. A paddle wheel provided within the dome 14 may be rotated by fluid from the jet orifice 8.
Patent GB-1139853-A (GB)
Title: Dart construction
Inventor: KESTENBAUM RONALD M
IPC: F42B6/00
Filed: 1967-07-29
Abstract: 1,139,853. Dart. HAMILTON METAL PRODUCTS INC. 29 July, 1967, No. 34959/67. Heading A6S. A dart comprises (i) a metallic first hollow shaft 23 threaded at end 24, (ii) a synthetic resinous flight, including second hollow shaft 31 moulded integrally with vanes 35 - 37, molded directly around shaft 23, said shaft 31 enclosing at its rear terminal an open end 25 of shaft 23, (iii) a weighted nose 18 including pointed member 15 and socket 20 partially threaded to engage shaft 23, but having an unthreaded forward portion, and (iv) a solid metallic shaft 26 whose diameter corresponds to the internal diameter of shaft 23 and whose end is flattened and wider than said diameter, so that said flattened end can be maintained in the unthreaded portion of socket 20 with the remainder of shaft 26 in the bore of shaft 23 without relative movement of shafts 23 and 26.
Patent GB-1069502-A (GB)
Title: Means and method of hoisting cargo
IPC: B64D1/22
Filed: 1965-08-16
Abstract: 1,069,502. Crane aircraft. F. H. STEWARD. Aug. 16, 1965, No. 36021/65. Headings B7G and B7W. [Also in Division B8] Apparatus for raising and lowering a load C comprises a hoisting craft 1 capable of exerting a thrust sufficient to sustain it and the load in the air, and a winch 22 attached to the craft by cable. The hoisting craft described includes a jet engine, or a motor driving contra-rotating ducted propellers (Fig. 5 (not shown), with control vanes (8, 9) (Figs. 4 and 6, not shown) or (18, 19) (Fig. 5, not shown) in the efflux, and controlled by telemetry or through cables paid out from the winch, or by an operator on the hoisting craft. The winch may be on land or ship, or on an aeroplane, and may include means for automatically reeling in and paying out the tether if predetermined tension limits are reached, e.g. through gust loads on the craft and load. The tether (20) and the load cable (26) are attached to a gimbal ring 6 (Fig. 4, not shown) or 16 (Fig. 5, not shown). Where the winch is mounted on an aeroplane, it may be released from the latter, or towed by it, and preferably has outer control surfaces (28, 29) mounted coaxially with the inner surfaces (8, 9) (Fig. 6, not shown) and in the airflow over the craft when being towed. The surfaces (8, 9) are operated by levers (34) fixed to them, and the surfaces (28, 29) which otherwise pivot freely, are made to follow the corresponding surface (8 or 9) by levers (33) each pivoted at one end to the levers (34), and which are pivoted to engage cams (32) on the surfaces (28, 29) to make them follow the inner surfaces. In operation, the aeroplane circles the spot at which the load is to be raised or lowered, and the craft travels from it to the centre of the circle. The craft may be used to tow a vehicle on which the winch is mounted.
Patent GB-1055446-A (GB)
Title: Improvements in knitting machines
Inventor: PEBERDY ROLAND
IPC: D04B15/74
Filed: 1963-09-05
Abstract: A superposed cylinder machine has patterning mechanism comprising a lower bank of selector levers 16 Fig. 1, not shown, and an upper bank of selector levers which is subdivided into two groups 7, 8.  A control bar 18 is capable of being operated to render the lower bank 16 inoperative and a control bar 9 is capable of rendering the upper bank inoperative.  In the latter case the bar 9 first renders the group 7 inoperative and subsequently the group 8.  The banks of selector levers are operated for patterning by pattern drums the lower one of which is shown at 17.  With a needle butt arrangement as illustrated in Fig. 3, not shown, the lever bank is first rendered inoperative to permit overall patterning of the leg of a sock for the full width 20.  Subsequently the lower bank is rendered operative whilst the p  group 7 is rendered inoperative to permit a bold pattern 21 to be formed in the leg, Fig. 5, not shown.  Upon completion of the bold pattern the bank 16 is again rendered inoperative and the group 7 rendered operative to permit small patterning to be resumed.  All the selectors can be rendered inoperative when desired.
Patent GB-818988-A (GB)
Title: Improvements in or relating to sliding latch locks
IPC: A44B11/26
Filed: 1955-12-07
Abstract: 818,988. Strap fasteners. WRIGHT, T., CHARNOCK, S. T., and ALMET DESIGNS Ltd. Dec. 3, 1956 [Dec. 7, 1955], No. 35112/55. Class 44 A sliding latch lock comprises two T- shaped plates 10, 12 slotted at 26, 27 for connection to bands, straps, &c., the plate 12 being an aperture 29, constituting the latch, the plate 10 carrying a locking member 24 and having its narrower end turned up to form an end wall having a slot 15, through which the latch can pass to ride over the locking member 24, a flat spring 16 between member 24 and plate 10 presses the member 24 into aperture 29 in the latch to lock the latch to the plate 10, and a manually operated button 21 being depressed to act on the locking member 24 against spring 16 to release member 24 from the latch. The turned-up end of plate 10 forms a pocket 14 in which rests one end of a strip 11 from which is pressed out the member 24, the other end being urged by spring 16, riveted to strip 11, against two claws 17, 18 bent out from a tongue 19 which in turn is pressed out of the plate 10. A stop 23 on tongue 19 limits the downward movement of the button 21 the stem of which is secured to strip 11 and engages in a recess 28 in plate 12 in the lock position. A housing 31 riveted to plate 10 encloses the strip 11, projection 19 and stem of button 21.
Patent GB-1500742-A (GB)
Title: Suspension device
IPC: F16L3/133
Filed: 1975-08-26
Abstract: 1500742 Tube support HILTI AG 26 Aug 1975 [2 Sept 1974] 35139/75 Heading F2P [Also in Division E2] A suspending device for suspending a tubular spar 6 of a ceiling comprises an upper support and a lower support each support having a portion, 1, 2 respectively, in side-by-side relation and passing through slots 8 formed in spaced apart limbs of a clamping strap 3. Each portion 1, 2 may be a strap, as shown, or a tube (not shown) or any other elongate shape. The slots in the clamp may be elongate and rectangular, as shown, or rhombic or "peardrop" shape having an elongate rectangular extension (Figs. 3 to 5, not shown). One clamping strap may have two sets of slots to accommodate two pairs of support portions. The device is used to support a tubular spar 6 of a false ceiling.
Patent GB-834209-A (GB)
Title: Improvements relating to apparatus for making finned tubing
Inventor: STIKELEATHER ROBERT MCINTOSH
IPC: B21C37/26
Filed: 1956-05-18
Abstract: 834,209. Making helically finned heat exchanger tubes. AEROFIN CORPORATION. May 18, 1956, No. 35150/59. Divided out of 834,205. Drawings to Specification. Classes 83 (2) and 83 (4). The subject-matter of this Specification is identical with part of that described in Specification 834,205, but the claims are concerned with mechanism for supporting rotating finned tubing as it emerges from a finning machine. Specification 834,208 also is referred to.
Patent GB-1158627-A (GB)
Title: Photographic Systems
IPC: G03C1/675
Filed: 1966-08-05
Abstract: 1,158,627. Photographic light-sensitive organic halogen compound materials. HORIZONS Inc. Aug. 5, 1966 [Sept. 7, 1965], No. 35239/66. Heading G2C. A photo-sensitive photographic composition, which on exposure prints out or produces an invisible or faintly visible image which develops out (or is intensified) on exposure to infrared radiation, and which may be fixed by heating or solvent rinse, comprises a mixture of (a) an organic halogen compound of the formula A-C-X 3  where A is hydrogen, chlorine, bromine, iodine, alkyl, aryl or aroyl and each X is chlorine, bromine or iodine; (b) at least one styryl dye base, cyanine dye base, amine of the formula:- where Ar is substituted or unsubstituted phenyl or naphthyl and each E and F is hydrogen or substituted or unsubstituted allyl or aryl, the carbon para to the ring carbon to which the N is attached being unsubstituted; or heterocyclic compound containing at least two fused 5- and/or 6-membered rings at least one of which contains heterocyclic nitrogen, the compound having a hydrogen atom capable of being replaced by a -CH 3  radical; (c) at least one leuco base or carbinol base or derivative thereof of a triarylmethane compound having at least one of its aryl radicals substituted to increase its electrophilic characteristics above those of the unsubstituted compound and having one of the formulae shown in Table III of the Specification; and (d) a carrier material in or on which (a), (b) and (c) are supported. The composition has a higher photographic speed than earlier similar compositions. Organic halogen compounds specified are CBr 4 , HCBr 3 , C 2 Br 6 , C 6 H 5 CBr 3 , HC 2 Br 5 , C 6 H 5 COCBr 3 , HCI 3 , C 2 C1 6 , Cl 3 CCONH 2 . Styryl dye bases include 4-p-dimethyl-aminostyrylquinoline, and cyanine dye bases include 2-[(3-ethyl-2- (3H)benzothiazolylidene-ethylidene)amino] benzothiazole and 4-(1-ethyl-2-(1H)quinolylideneamino) quinoline. Amines of the general formula given above include N:N-dimethyl-m-toluidine, macetamido-N:N-diethylaniline, N-(p-ethoxyphenyl)- α-naphthylamine and 3-ethoxy-4<SP>1</SP>-methyldiphenylamine. Heterocyclic compounds of type (b) above include N-vinylcarbazole, quinoline, isorosinduline, indigo white, acridine and indole, and the ring position para to the replaceable hydrogen atom may be substituted by a chromophore as for example in 4-(p-dimethylaminophenylazo)-quinoline. The leuco or carbinol bases of the triarylmethanes described are bases of triphenylmethanes in which two phenyl groups may be linked by carbon, oxygen, sulphur, nitrogen or a direct linkage and which are substituted in the 2:6-positions of a phenyl group by methyl, chloro, bromo, cyano, methoxy, carboxy, sulpho or hydroxy, or bases of corresponding triarylmethanes in which the phenyl radicals are replaced by naphthyl or biphenylyl radicals, or bases of the chichibabin type.