baber/WOPTO huggingface dataset:
Patent GB-730227-A (GB)
Title: Improvements connected with directional lighting units for aircraft runway systems
Inventor: HARTHILL PHILIP
IPC: B64F1/20
Filed: 1952-11-29
Abstract: 730,227. Airport runway lights. REVO ELECTRIC CO., Ltd. Feb. 23, 1954 [Nov. 29, 1952], No. 30294/52. Classes 75 (2) and 75 (4). A directional lighting unit for an aircraft runway comprises a lamp and reflector located in a casing so as to direct upwardly at a small angle to the vertical a beam of light through a transparent armoured or toughened prism mounted in the top cover of the casing, the upper surface of which prism is arranged substantially co-planar with or slightly, inclined to the surface of the runway. Two electric lamps a, b are mounted in a casing c each in association with a parabolic reflector b inclined so as to direct a beam of rays through a prism d the upper surface of which is slightly proud of a cover plate e aligned with the runway surface. The prism d is substantially rectangular in plan and has two inclined faces d<SP>2</SP> through which the light beams are directed to leave the prism along the directions d<SP>1</SP> slightly inclined to the horizontal. A resilient moulding f, e.g. of rubber, receives the periphery of the prism which is held by clamping the plate e to a lower plate el by bolts g. The casing c is secured to the plate e<SP>1</SP> by bolts g, and bolts h secure the plate e<SP>1</SP> to the aircraft runway. A series of lighting units is arranged along or closely parallel to the longitudinal centre line of the runway. According to the Provisional Specification the upper or lower surface of the prism of each unit may be formed with flutes which may be aligned with the longitudinal direction of the runway to provide greater lateral spread of the emitted light, and each unit comprises one electric lamp only.
Patent GB-244090-A (GB)
Title: Spark plugs for internal combustion engines and method of cooling the same
IPC: H01T13/16
Filed: 1925-12-01
Abstract: 244,090. Fischer, H. Dec. 4, 1924, [Convention date]. Cycles.-To cool the sparking-plug the central electrode f is made hollow and air and water are drawn through on the suction stroke. The air enters through the adjustable plug l and the water from the pipe W past the valve v; this valve normally closes the pipe as shown in the Figure, but on the suction stroke it opens allowing a small quantity of water to enter the bore in the electrode. The water is vapourized in the electrode. The air and water or vapour are intimately mixed in helical grooves in a plug h contained in an extension g of the central electrode. On the explosion stroke this plug moves up and isolates the bore in the electrode. The blocks holding the inlet valves l, v is adjustable around the electrode for readv attachment to the water pipe. The Specification as open to inspection under Sect. 91 (3) (a) also states that the valve v is double-acting cutting off the water supply and that the steam is dissociated in the combustion chamber. This subject-matter does not appear in the Specification as accepted.
Patent GB-654346-A (GB)
Title: Improvements in or relating to dyestuffs and pigments derived from thiazolyl-2 thioglycollic acids
Inventor: DUFFIN GEORGE FRANK
IPC: C09B23/10
Filed: 1948-11-23
Abstract: Ethers of the dyes obtained according to the parent Specification from thiazolyl-2-thioglycollic acids and monocarboxylic acid anhydrides or the corresponding acyl compounds are obtained by subjecting the dyes of the parent case to treatment with an alkyl, aralkyl, or alkylene halide in an alkaline medium.  Groups which may be introduced are methyl, ethyl, methylene, ethylene dodecyl, octadecyl, cetyl, dodecylene, benzyl, naphthylmethyl.  In examples, the product obtained from 5-benzthiazolyl-2-thioglycollic acid according to example 1 of the parent Specification is treated with (1) aqueous caustic soda and methyl iodide in methanol; (2) aqueous ammonia and dimethyl sulphate in water; (3) aqueous caustic soda and ethyl iodide in ethanol; (4) aqueous caustic soda and ethylene dibromide in ethanol.
Patent GB-1253489-A (GB)
Title: A brake actuator having an automatic brake adjuster
Inventor: CROSSMAN RICHARD LLOYD
IPC: F16D65/14
Filed: 1970-06-23
Abstract: 1,253,489. Brake slack adjuster. GOODYEAR TIRE & RUBBER CO. 23 June, 1970, No. 30438/70. Heading F2E. A brake actuator comprises a cylinder 2 having a piston 10 slidable therein, the piston being formed with a threaded portion 15 for co-operation with a resilient thread engaging means 23. Means 38 are provided for preventing relative rotation of the piston 10 and the thread-engaging means 23 the arrangement being such that the piston and thread-engaging means move together for a predetermined distance on actuation of the brake and thereafter, due to the resilience of the means 23, the piston moves relatively to the means 23. In the construction shown the piston and the adjustment mechanism 11 are spring-biased towards their rest positions. The assembly is retained in the cylinder by a sleeve 5 and a heat insulator 16 is screwed to the outer end of the piston 10. The piston may be made of a heat-insulating material and in this case and when a soft metal, e.g. aluminium, is used a metallic threaded insert is provided to form the threaded portion of the piston (Fig. 6, not shown). The assembly may also be retained in the cylinder by a lock ring engaging a groove adjacent the inner end of the cylinder (Fig. 5 not shown).
Patent GB-714153-A (GB)
Title: Improvements in bituminous road-surfacing materials
Inventor: LEE ALFRED ROBERT
IPC: E01C7/26
Filed: 1950-12-13
Abstract: The bituminous binder of hot process rolled asphalt has its hardening rate controlled or increased by the addition of a material containing one or more phenolic compounds in an amount of substantially 4 parts per 100 parts of the binder.  In addition some hard bitumen or pitch may be present.  The phenolic compounds and pitch may be added as one, e.g. pitch residue from tar obtained from either low or medium temperature carbonization of coal, or a concentrate obtained by neutralizing an aqueous-alkaline extract of medium temperature carbonization tar. Hot process rolled asphalt is defined in the Specification.
Patent GB-263075-A (GB)
Title: Improvements in and connected with the super-charging of internal combustion engines
IPC: F02B33/40
Filed: 1925-09-08
Abstract: 263,075. Brown, A. Hall-. Sept. 8, 1925. Divided on 263,907. Fan apparatus. -On the periphery of the usual radiator cooling fan A are mounted the blades A<1> of a second fan used to supply air to the carburettor. A housing B encloses these blades, the discharge pipe C being led to the carburettor intake D.
Patent GB-444036-A (GB)
Title: Improvements in and relating to drills and auger bits
IPC: B27G15/00
Filed: 1934-10-25
Abstract: 444,036. Augers. HOGGARD, J. H., 38, Lovelace Avenue, Southend-on-Sea. Oct. 25, 1934, No. 30652. [Class 83 (iii)] A drill or auger bit comprises an unshrouded cutting portion h and a shank portion b connected together by a number of side members c having a free space between them into which the material removed by the cutting portion can pass. The cutting portion may be integral with the body and shank or may be made of tool steel and welded or otherwise connected to the body portion. The cutting edges are provided with a front rake, the face h extending to the slot d, the wings g are optional and the point f may be of screw form or plain.
Patent GB-1222376-A (GB)
Title: Extrusion of hollow ingots
Inventor: COURTNEY RONALD JOHN ALAN
IPC: B21C23/32
Filed: 1967-07-04
Abstract: 1,222,376. Extruding; lubricating. HENRY WIGGIN & CO. Ltd. 21 June, 1968 [4 July, 1967], No. 30700/67. Heading B3P. [Also in Division C5] A hollow ingot, particularly a nickel alloy ingot, which is to be hot extruded has its bore coated with a lubricant mixture by forming an aqueous slurry of a mixture of an enamel frit and a glass powder, preferably borosilicate glass powder, containing 40% to 70% by weight of nodules of frit, introducing the slurry into the the bore of the ingot whilst it is substantially vertical and allowing excess slurry to drain from the bore leaving a thin coating on the walls of the bore, the composition of the mixture being such that the coating has a softening point of at least 1050‹ C. The slurry may completely fill the bore and then be drained from it or a plunger, inserted from below, may be slowly lowered through the bore with rotation, a shallow pool of slurry being maintained on top of the plunger. The preferred frit has a composition SiO 2 -60À5%; B 2 O 3 -9À1%; GaO- 9À6%; ZnO-7À1%; Na 2 O-7À0%; MgO- 2À3%; BaO-2À2%; Al 2 O 3 -1À4%; K 2 O- 0À8%. The glass preferably comprises 30% to 50% by weight of the slurry and the nodules of frit are preferably <SP>1</SP>/ 16 th to <SP>1</SP>/ 8 th inch in diameter.
Patent GB-1272332-A (GB)
Title: Planetary gear carrier assembly and method of manufacture thereof
Inventor: LAING JAMES
IPC: F16H57/08
Filed: 1969-06-17
Abstract: 1,272,332. Making planetary gear carriers. BORG-WARNER Ltd. 17 June, 1969, No 30711/69. Heading B3A. [Also in Division F2] A planetary gear carrier is made by welding together sheet metal members 12, 14, 16. A drum 12 is welded to a spacer member 14 formed by an annular disc and axially extending tangs which are received in rectangular slots of an annular disc 16. The cylindrical wall of the drum 12 is provided with keying depressions 26 for connecting the assembly to a further part. Shafts 52 carrying pinions 44, needle bearings 46 and washers 48, 50 are secured in apertures formed in the assembly, by deforming the support plate 16 and drum 12 around the chamfered ends of the shafts 52. The spacer member 14 and disc 16 are provided with grooves (39, 38) (Figs. 4 and 5, not shown) to act as lubricating guideways.
Patent GB-270980-A (GB)
Title: Fluid-tight electric switch
IPC: H01H13/06
Filed: 1926-12-04
Abstract: 270,980. Munthesen, M. Dec. 4, 1926. Press - button switches; actuating; cases. - A pressbutton switch is enclosed in a fluid-tight casing one wall of which takes the form of a diaphragm 10 and mechanism arranged between the diaphragm and the press-button 4 serves to convert a small movement of the diaphragm, when the latter is depressed by a press-button 12, into a relatively large movement of the button 4. The amplifying mechanism may comprise two levers 14, 16 arranged e.g. as shown, or the diaphragm may operate a toothed rack which engages a gear wheel, the latter having fixed to it a smaller gear wheel which engages a rack on the button 4.
Patent GB-1029046-A (GB)
Title: Steroid compounds
IPC: A61K31/58
Filed: 1964-08-04
Abstract: The invention comprises steroids of the formula <FORM:1029046/C2/1> in which X is an aliphatic radical containing less than eight carbon atoms; R and R1 is hydrogen or an alkanoyl radical containing 2-7 carbon atoms inclusively; and the wavy lines indicate the alternative locations of a  and b  configurations of the 4,5-epoxy group, and the production thereof by: (a) the epoxidation of a compound of the formula <FORM:1029046/C2/2> (b) the epoxidation of a compound of the formula <FORM:1029046/C2/3> followed by the reduction of the 3-keto-4,5-epoxide thus obtained with a reducing agent conventional for the reduction of 3-keto groups and which does not cleave carbon-carbon and carbon-oxygen linkages; (c) when X is alkenyl, contacting a compound of the formula <FORM:1029046/C2/4> with hydrogen and a hydrogenation catalyst until one equivalent of hydrogen had been taken up; (d) when X is alkyl, contacting A compound of the formula <FORM:1029046/C2/5> with hydrogen and a hydrogenation catalyst until at least two equivalents of hydrogen have been taken up; (e) when R is hydrogen and R1 is alkanoyl, the acylation of the corresponding 4,5 - epoxy - 17a  - (aliphatic hydrocarbon) - 19 - norandrostane - 3b ,17b  - diol; (f) when R and R1 are alkanoyl, the acylation of the corresponding 4,5 - epoxy - 17a - (aliphatic hydrocarbon) - 19 - nor - androstane - 3b ,17b  - diol - 17 - alkanoate; (g) when R and R1 are hydrogen, the hydrolysis of the corresponding 4,5-epoxy-17a -(aliphatic hydrocarbon) - 19 - nor - androstane - 3b ,17b  - diol - 3 - alkanoate; or (h) when R is alkanoyl and R1 is hydrogen, the hydrolysis of the corresponding 4,5-epoxy-17a -(aliphatic hydrocarbon) - 19 - nor - androstane - 3b ,17b  - diol - 3,17-dialkanoate.
Patent GB-1260548-A (GB)
Title: Universal graphic display material
Inventor: FRECH EVERETT BRYANT
IPC: G09F7/00
Filed: 1969-06-18
Abstract: 1,260,548. Laminate for graphic display. RIEGEL PAPER CORP. 18 June, 1969 [21 June, 1968], No. 30899/69. Heading B5N. [Also in Division G2] A laminate suitable for use, simultaneously or separately, as a projection screen, writing surface or board for three dimensional magnetic markers comprises an embossed transparent layer of polyvinylfluoride and a light reflective vinyl plastics layer having either magnetizable particles embedded therein or a steel foil attached thereto. The embossments on the polyvinyl fluoride are preferably arranged in a lenticular pattern, the individual embossments being hemispherically shaped. The unexposed surface of the polyvinyl fluoride layer may have a square grid pattern lightly printed on it so that it is invisible when viewed from a distance greater than the normal writing distance. The rear face of the laminate may be coated with a pressure sensitive adhesive or it may be mounted on a stiff particle board.
Patent GB-825002-A (GB)
Title: Permeable body with variably permeable layers and conically increasing permeability
IPC: H01C10/50
Filed: 1954-10-27
Abstract: The invention of the parent Specification is modified mainly in that only the layer with the lowest permeability need be extendable and it constitutes one working surface.  The body may consist of three layers of springs resting on a plastic support, the springs in any one layer engaging with one another.  The springs in adjacent layers may also be engaged with one another. The body may consist of extendable plastic or metal wire nets of increasing permeability from layer to layer, connected together. The above wire nets may include chain links or woven wire fabrics. Alternatively the body may consist of layers of drained and dried plastic foam.  A foam agent may be included, and may be allowed to remain or be rinsed out before use. In a further example the lowermost layer may be mounted in a disc which also has other alternative lowermost layers mounted in it, all spaced apart, and these may be moved sequentially into position by rotation of the disc.ALSO:The invention of the parent Specification (which is referred to) is modified mainly in that only the layer with the lowest permeability need be extendable and it constitutes one working surface.  The body may consist of three layers of springs resting on a plastic support, the springs in any one layer engaging with one another.  The springs in adjacent layers may also be engaged with one another.  The body may consist of extendable plastic or metal wire nets of increasing permeability from layer to layer, connected together.  The above wire nets may include chain links or woven wire fabrics.  Alternatively, the body may consist of layers of drained and dried plastic foam.  A foam agent may be included during manufacture, and may be allowed to remain or be rinsed out before use.  In a further example the lowermost layer may be mounted in a disc which also has other alternate lowermost layers mounted on it, all spaced apart, and these may be moved sequentially into position by rotation of the disc.
Patent GB-1505078-A (GB)
Title: Vehicle chassis structures
IPC: B62D53/04
Filed: 1974-07-12
Abstract: 1505078 Vehicle chassis R H BRAUNE 9 July 1975 [12 July 1974] 30936/74 Headings B7D and B7B In a vehicle comprising readily replaceable or exchangable front and rear parts 1, 2, which are releasably coupled together, the front part 1 has a transverse slot 3 formed between a horizontal base member and an end wall 6 with vertical slots 11, and the rear part 2 has an end wall provided with an angled support flange 4 which is engaged with the slot 3, and studs 12 which are passed through the slots 11 and secured by nuts to clamp the end walls together. A further flange 5 on the rear part 2 engages the top of the end wall 6. The front part 1 and rear part 2 are each supported by one or two wheels and the front part is tilted about the axis of its wheel or wheels when the parts are coupled to facilitate engagement of the flange 4 with the slot 3. In another embodiment there are two short transverse slots and support flanges each extending for only part of the width of the chassis.
Patent GB-671545-A (GB)
Title: Improvements in and relating to flatirons
IPC: D06F75/40
Filed: 1950-12-20
Abstract: 671,545. Hand irons. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 20, 1950 [Dec. 31, 1949], No. 31033/50. Class 138 (ii). A stand for a flat-iron comprises an arcuatelyshaped supporting leg 9 pivoted in the soleplate 1 of the iron to turn in the plane of the arc, the soleplate having an aperture 14 through which the arcuate leg may swing from a retracted position (Fig. 3) to an extended one (Fig. 2). The leg 9 may be formed from a single piece of heavy gauge stainless steel wire or rod and has a central straight portion 10 extending transversely of the soleplate and is pivotally seated in a transverse groove 11 in the top of the soleplate. The leg 9 also has radial portions 12, arcuate portions 13 and L-shaped extensions 16 received in countersunk portions 15 in the soleplate. Counterweights 17 are secured to the radial portions 12 and, by tilting the iron rearwardly from the horizontal position the counter. weights will be lifted by the soleplate and the legs with the counterweights will swing clockwise to the extended position. The iron can thus be supported by the extensions 16 and the heel rest 5. Retraction of the legs is effected either by lifting the iron and depressing its front end or by moving the iron forwardly across the pressing surface while keeping the ends of the legs in contact with that surface. The leg member 9 is rotatably held in the groove 11 by a bracket 18 which extends over the section 10 and has guide ears 20 to prevent excessive side-play of the member 9. Other ears 21 limit the movement of the legs toward extended position. To eliminate the noise produced when the iron is tilted to extend the stand a silencer is provided in the form of a thin readily-flexed U-shaped spring member having upstanding sides 23 with outwardlyflared ends 24. When the supporting legs swing. toward extended position the radial portions of these legs gently engage first the flared ends and then the side portions of the spring, gradually stopping the swinging of the stand. Specification 622,633 is referred to.
Patent GB-1272018-A (GB)
Title: Apparatus for controlling stress in a heated semiconductor filament
Inventor: DYER LAWRENCE DEAN
IPC: G05D15/01
Filed: 1969-06-19
Abstract: 1,272,018. Automatic control of stress. TEXAS INSTRUMENTS Inc. June 19, 1969 [July 11, 1968], No.31035/69. Heading G3R. Apparatus for controlling the stress in a heated semi-conductor filament 20 comprises two chucks 22, 24, the position of one of which is controlled by means responsive to the variation of stress in the filament. The chucks are mounted on water cooled electrodes 26, 44 by which heating current is passed through the filament and which are supported by bellows 38, 52, flexible diaphrams or roll seats within a gas tight quartz tube 10. The filament 20 is a substrate for the growing of a silicon or germanium crystal by deposition from a vapour. Stress occurs in the filament when thermal expansion causes it to push down the lower electrode and is determined by measuring the displacement of this electrode. In Fig. 1 this is effected electrically by a differential transformer 60 with movable core 68, or by a strain gauge bridge, the signal from which operates a servomotor 74, to raise the upper chuck until the lower chuck, and hence the stress, are restored to their original condition. In Fig. 2 (not shown) the servomotor 74 is replaced by a pneumatic valve which controls an air supply to bellows 52.
Patent GB-1405821-A (GB)
Title: Process for treating electrolytic manganese dioxide
IPC: C25B1/21
Filed: 1973-06-29
Abstract: 1405821 Producing MnO 2  electrolytically MITSUI MINING & SMELTING CO Ltd 29 June 1973 31079/73 Heading C7B Pb oxide is removed from MnO 2  produced by electrolysis of an aqueous solution containing H 2 SO 4  and MnSO 4  in apparatus made at least in part of Pb or Pb alloy e.g. cathodes of Pb-4% Sb by peeling off from an anode deposited MnO 2  layers having a Pb oxide film thereon, mutually abrading the layer preferably in presence of water to remove the film, separating the MnO 2  from the Pb oxide, reducing the MnO 2  into particles 1-15mm in diameter, and then washing with water and/or neutralizing with an alkali to remove any SO 4  compound occluded in the particles. Preferably the particles are first washed then neutralized with aqueous ammonia. Mutual abrasion of MnO 2  may be effected in a rotary drum claimed in Specification 1405822. The MnO 2  is used as depolarizer for a dry cell.
Patent GB-451269-A (GB)
Title: Improvements in or relating to liquid-fuel burners
IPC: F23D5/00
Filed: 1934-10-30
Abstract: 451,269. Liquid-fuel burners. ETABLISSEMENTS NATIONAL ECONOMIC, 13, Rue Louis Blanc, Paris. Oct. 30, 1934, No. 31119. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 1, 1935]. [Class 75 (i)] Liquid fuel is supplied through a vertical duct 1 and horizontal duct 5 to an annular chamber 6 from'which it overflows over a partition 8 to an annular space 7 around the duct 1 and passes through a flared opening to a wick arranged in a channel 10 provided at the bottom of perforated wall 12. On igniting the wick the walls of the space 7 and chamber 6 become heated sufficiently to vaporize the fuel and the vapour burns with air admitted through the perforations in the wall 12. A flared flange 14 in the wall 12 prevents excess fuel from escaping when the burner is first ignited.
Patent GB-1438819-A (GB)
Title: Fused-ring isoquinoline derivatives
IPC: C07D233/66
Filed: 1973-06-29
Abstract: The novel aminopyrazoloisoquinoline derivatives of the formula <IMAGE>  in which     A denotes an alkoxy group containing 1 to 4 carbon atoms and   D denotes hydrogen, acyl, alkyl or aralkyl, have a favourable effect on the activity of the heart. They are prepared by treating compounds of the general formula <IMAGE> in which A has the above meaning and R denotes an alkyl, aralkyl or aryl group, with a strong alkaline solution. Compounds of the formula I are thus obtained, in which D denotes hydrogen which can be replaced by an acyl group. This hydrogen can also be replaced by an alkyl or aralkyl group by reaction with an aldehyde or ketone and subsequent reduction of the resulting intermediate.
Patent GB-1278770-A (GB)
Title: Method of producing soldered or brazed joint
Inventor: RYABOV IVAN MAXIMOVICH
IPC: B23K1/18
Filed: 1970-06-26
Abstract: 1278770 Soldering I M RYABOV and A A SHLYKOV 26 June 1970 31188/70 Heading B3R In joining two members 1, 2, a resilient sealing member 6 resistant to the heat of soldering or brazing and incapable of adhering to solder or brazing metal is located in a gap 3 between the members, a wire 7 capable of adhering to solder or brazing metal is provided in the gap on the member 6 with a portion 8 extending from the gap and solder or brazing metal is provided in the gap to form a joint between the members with the wire portion 8 extending out of the solder or brazing metal. The gap 3 is between tinned surfaces 4, 5 of the cover 1 and body 2 of a shell and the member 6 is of rubber. The wire 7 which is stronger than the solder or brazing metal and is of steel is placed on the member 6 with the end 8 out of the gap and then the gap is filled with liquid solder or brazing metal. To break the joint after solidification of the solder the end 8 is pulled.