baber/WOPTO huggingface dataset:
Patent GB-1203907-A (GB)
Title: Spiral multilayer metal pipe for a pressure vessel
Inventor: SAGARA HIDEO
IPC: F16L9/02
Filed: 1969-02-11
Abstract: 1,203,907. Metal tubes. MITSUBISHI JUKOGYO K.K. 11 Feb., 1969, No. 7283/69. Heading F2P. A spiral multilayer pipe comprises an inner cylinder 2, a metal sheet 3 which constitutes the main spiral body of the pipe, and metal sheets 7-10 which collectively are at the most equal to the thickness of the main metal sheet and which are secured to an end of the main sheet to form a wedge. As shown, the pipe consists of the inner cylinder 2 the main spiral sheet 3, and an outer cylinder 4, wedges 5, 6 being formed at the inner and outer ends of the spiral sheet, and each wedge being formed of steel sheets 7-10 which are welded at 12 to the main sheet 3. The ends of the sheets 7-10 are tapered at A, each sheet being one fifth-thickness of the main sheet. In a modification, Fig. 4, not shown, each sheet (7-10) is of laminated form. The sheets 7-10 can be welded to an end of the sheet 3 either one at a time or, together as a pre-welded assembly.
Patent GB-1036363-A (GB)
Title: Improvements in and relating to flexible couplings
IPC: F16D3/76
Filed: 1964-02-21
Abstract: 1,036,363. Making flexible couplings. SCHWITZER CORPORATION. Feb. 21, 1964 [March 8, 1963], No. 7335/64. Heading B3A. In a method of making a flexible coupling, a member 10 is formed with an annular cavity, an elastic member 19 is deposited in the cavity and the member 10 is separated into two concentric components by forming a continuous slot through the cavity portion.
Patent GB-921030-A (GB)
Title: A differential protective system for a transformer
IPC: H02H7/045
Filed: 1961-03-01
Abstract: 921,030. Protective arrangements. BROWN, BOVERI & CIE A.G. March 1, 1961 [March 4, 1960], No. 7439/61. Class 38 (5). A differential protective arrangement for a transformer 1 has a relay 8 connected to a rectifier 5 for energization by an operating current derived from the difference between the currents at each side of the transformer. The relay 8 is also connected to rectifiers 6 and 7 respectively energized by a harmonic current and the through current, the rectifiers 6 and 7 being connected in a series circuit so that the restraining current supplied to the relay from these rectifiers is dependent on the predominant current and not on their sum.
Patent GB-1027415-A (GB)
Title: Jet propulsion engine
Inventor: COPLIN JOHN FREDERICK
IPC: F23R3/20
Filed: 1964-02-21
Abstract: 1,027,415. Boundary layer control. ROLLSROYCE Ltd. Jan. 11, 1965 [Feb. 21, 1964], No. 7470/64. Heading F2R. [Also in Divisions B7 and F1] The flow over an aerofoil member, such as a guide vane, in a jet propulsion engine, is made turbulent so that fuel injected over the member mixes more readily with the air. This may be done by flaps in the airstream or by injecting air through nozzles 30, 31 (Fig. 2, not shown) into the airstream, the fuel being ejected at 26. The aerofoil member described is a guide vane in a duct conveying air from the low pressure compressor of a gas turbine engine (see Divisions B7 or F1), to a nozzle, and is used to provide plenum chamber burning. The invention is also applicable to gas turbine reheat equipment.
Patent GB-635775-A (GB)
Title: Improvements in or relating to grinding, milling or the like machines
IPC: B23Q1/54
Filed: 1947-03-18
Abstract: 635,775. Grinding and polishing. BRISTOL AEROPLANE CO., Ltd., WHITEHEAD, F. W., and BEDFORD, W. H. March 18, 1947, No. 7501. [Class 60] [Also in Group XXII]  A machine, for grinding or milling the convex surfaces of gas turbine or compressor blades of the " coincident-line " type described in Specification 625,771, has a work-holder 67, which presents the blade to the peripheral cutting face of the tool and is given an angular feed movement about an axis substantially parallel to the axis of rotation of the tool, and a pair of cams 43, which lie one on each side of the work-holder and act together to move it laterally to and from the tool and to incline it lengthwise to the tool cutting face. The tool head 26, Fig. 3, is mounted for lateral in-feed by a hand wheel 24, on slides 25 on the machine bed 21 and comprises a grinding wheel or milling cutter 29 which is of greater width than the length of the blade and is driven through a gearbox 27 from a motor 28. The blade 70, Fig. 4, is held by clamps 69 against a tapered channel-section block 66 secured to a removable work-holder 67 ; the walls of the block in the cutting area of the tool are machined away, first by rough machining and then by means of the tool 29 while the block is mounted in the holder 67. The work-holder has tongue- and-slot connections with shafts 36, Fig. 5, which are journalled in bearings 34 on a table 33 pivoted at 37 on a slide 32 capable of being reciprocated to and from the tool head under the control of cams 43, one on each shaft 36. Weights 57 on ropes 55 connected to pulleys 54 hold the cams in contact with rollers 44 on the machine bed. The work-holder may be rotated by a motor 60 or a hand wheel 62 through a drive comprising a gearbox 59, a telescoping shaft 58 having a splined sleeve 64, a worm 53 and worm wheel 52 and a dogclutch 46 operated by a lever 48. When the work-holder is moved angularly about its axis the slide 32 is reciprocated and, if the cams 43 are arranged so that their points of maximum lift are relatively angularly displaced, the table 33 will be oscillated on the pivot 37. The shape of the convex surface is generated by one angular movement of the work-holder but the movement may be repeated several times with lateral in-feed of the tool head. Subsequently, the concave surface of the blades is formed in another machine and the excess material at the tip of the blade is removed. The cutting face of the tool may be straight, curved or part curved and part straight, the coincident lines produced on the blades being formed correspondingly.
Patent GB-1417945-A (GB)
Title: Disposal of incombustible solids from coal preparation tailings
IPC: F23G5/30
Filed: 1974-02-20
Abstract: 1417945 Burning coal washer tailings HEYL & PATTERSON Inc 20 Feb 1974 [22 May 1973] 7754/74 Heading F4B Tailings from coal washers are thickened to a solids content of 35-45% by weight and fed to fluidized bed where they are burnt at a temperature between 1400-1700 F., so that the debris and ash agglomerate are removed at such a rate as to maintain the pressure drop across the bed. The tailings are collected in a thickener 2 and fed by a constant speed pump 4 to a central sump 6 through a density meter 7, so that some of the slurry may be returned from the sump 6 if it is too thin. A variable speed pump 11 feeds the slurry to the fluidized bed in chamber 13. A start-up burner is located below the grate, and fluidizing air, which may be preheated, is supplied. An outlet 24 for agglomerated particles is controlled so that the flow of pellets is reduced when the pressure drop across the bed falls. Dust from a collector in the flue is returned to the furnace and discharged with the pellets. Sufficient additional coal dust may be added to the slurry or fed to the furnace to maintain a temperature in the bed between 1400 and 1700 F., and a flux may be added to the slurry to lower the melting point of the ash.
Patent GB-1411340-A (GB)
Title: Apparatus and method for fabricating brushes or brush components
IPC: A46D3/04
Filed: 1973-02-16
Abstract: 1411340 Brushes with synthetic bristles E S BISCHOFF 16 Feb 1973 [22 March 1972] 7774/73 Heading A4K [Also in Division B5] A brush having bristles of synthetic plastics material secured together by melting the ends of the bristles is formed by placing a bundle of bristles in a mould 4 formed with a shoulder 6, moving a plunger 3 longitudinally of the bristles such that the bristles are pressed against the shoulder 6 to effectively form two cavities 15b, 15a in the mould, melting the end portions of the bristles in the cavity 15b, pressing the melted bristle material with a platen, cooling the material and removing the brush from the mould by upward movement of the plunger 3. The platen may be a brush handle made of a material which will fuse with the molten bristle material or seal to the bristle material by forming an indentation 12 in the handle. If a handleless brush is required, the platen may be of metal, Fig.8 (not shown) which does not adhere to the fused bristle material. A ferrule 14 of the same material as the bristles or of a different material which will adhere to the fused bristle material may be placed in the cavity 15b of the mould before the bristles are inserted.
Patent GB-857516-A (GB)
Title: Improvements in or relating to colour selecting devices
Inventor: JR REINERT BRANDVIK
IPC: G01J3/52
Filed: 1957-03-08
Abstract: 857,516. Colour matching apparatus. INTERNATIONAL FARVEFABRIK A. S. March 8, 1957, No. 7778/57. Class 97(1) [Also in Group XV] A device for selecting the colour of machinery comprises a plurality of loose sheets each bearing a colour representation defining a machine or machine part at least some being transparencies to give a composite colour picture when the sheets are superimposed in registration, and a folder 1, Fig. 1, having pockets 4, 5 for storage of the sheets, a side panel exhibiting specimens 2, 3 showing the tone and hue of standard paints and another panel carrying pins 9 for registration of the sheets. As shown in Fig. 3 sheet 71 bears a picture of the entire machine in a single colour, sheet 72 is transparent except for a colour image of certain parts of the machine, whilst sheet 73 carries machine part images in a third colour. The effect of the colours on the appearance of the machine can therefore be observed by placing the sheets in super-position by the engagement of pins 9 with holes 10, 11.
Patent GB-622812-A (GB)
Title: Improvements in or relating to the manufacture of propeller blades
IPC: B21D53/78
Filed: 1944-05-08
Abstract: 622,812. Making screw propellers. UNITED AIRCRAFT CORPORATION. May 8, 1944, No. 7794/48. Convention date, April 23, 1943. Divided out of 605,256. Drawings to Specification. [Class 83 (ii)] Describes the making of airplane propeller blades comprising an outer airfoil member and an inner tubular support, as described in Specification 605,256, and claims deforming a flat sheet to produce depressions corresponding to the shape of the two blade faces, folding on a line between these depressions, and welding the contacting edge portions.
Patent GB-730387-A (GB)
Title: Improvements in or relating to snap-action electric switches
Inventor: SHOREY LOUIS WILLIAM
IPC: H01H3/00
Filed: 1952-03-26
Abstract: 730,387. Snap-action switches. EDISON SWAN ELECTRIC CO., Ltd. March 23, 1953 [March 26, 1952], No. 7804/52. Class 38 (5). The switch comprises a rocking contact lever having a hump on one face and a depression on the other, the hump co-operating with a rolling or sliding member and the depression receiving a fulcrum, a spring urging the lever and the rolling or sliding member together. In one form, Fig. 1, the lever 26 has a hump 28 fitting over a fulcrum 21, and the rolling or sliding member is a spring-loaded ball 40 carried by a slidable operating member 32 which causes the member 40 to pass across the hump and actuate the contacts with a snap-action. In another form, Fig. 6, the lever 59 is fulcrumed on a spring-pressed pointed pin 55 and the rolling or sliding member comprises the end 68 of a dolly 66. In Fig. 7, the lever 87 bears on a spring-biased ball 81 forming the rolling or sliding member, the fulcrum being formed by the end 86 of a dolly. In a modification, Fig. 9 (not shown), the ball has limited sideways movement and in Fig. 10 (not shown), the ball runs in a groove and the fulcrum is formed by a spring-loaded point on the dolly. In a further form, Fig. 11, a spring-loaded ball 112 in a dolly 111 engages a curved lever 113 having a central hump resting on a fixed knife edge fulcrum 110.
Patent GB-769518-A (GB)
Title: Normorphine derivatives
Filed: 1953-11-20
Abstract: The invention comprises N-(n-propyl)- and N-isobutyl-normorphine and their lower alkanoic esters (up to C6), and salts of these.  The compounds are made by reacting normorphine with an n-propyl or isobutyl halide (e.g. iodide) in a liquid medium in the presence of an acidbinding agent such as sodium bicarbonate, and, if desired, esterifying the product with a lower alkanoic anhydride.  Examples show the production of N-(n-propyl)-normorphine and its hydrochloride, O : O-diacetyl-N-(n-propyl)-normorphine, N - isobutyl - normorphine and its hydrochloride, and O : O - diacetyl - N - isobutyl-normorphine.  Propionyl and butyryl are also mentioned as esterifying groups.  Specified salt-forming acids are hydrochloric, hydrobromic, sulphuric, acetic, tartaric and citric.
Patent GB-598312-A (GB)
Title: Improvements in or relating to the preparation of aryl aliphatic diamines
Filed: 1945-03-28
Abstract: Aryl aliphatic diamines having therapeutic activity and of the general formula <FORM:0598312/IV/1> in which R1 represents an alkyl group, R2 an alkylene group and R3 and R4 hydrogen atoms or alkyl groups or groups of the formula <FORM:0598312/IV/2> are obtained by the reaction of an aldehyde of the formula <FORM:0598312/IV/3> with a compound of the formula <FORM:0598312/IV/4> and reduction of the Schiff's base obtained.  It is also possible when preparing N-substituted derivatives to carry out the process in two stages, i.e. to prepare first the compound in which R3 and R4 are hydrogen atoms and subsequently to react this with the same or a different aldehyde followed by reduction of the resulting Schiff's base.  The products may also be obtained by condensing a compound of the formula <FORM:0598312/IV/5> (where X is a halogen atom) with a compound of the general formula <FORM:0598312/IV/6> In examples: (1) cuminic aldehyde is condensed with ethylene diamine monohydrate and reduced with sodium in alcohol to give 1-(p-isopropylbenzylamino)-2-aminoethane which is purified as its hydrochloride; (2) cuminyl chloride is heated in a sealed tube with ethylene diamine monohydrate in alcohol giving the product of (1); (3) cuminyl chloride is heated in a sealed tube with 1-diethylamino-4-aminopentane giving 1-diethylamino-4-(p-isopropylbenzylamino) - pentane; (4) 1 - (p - isopropyl - benzylamino)-2-aminoethane prepared according to (1) or (2) is treated with diethyl acetaldehyde and the resultant Schiff's base is reduced with sodium in amyl alcohol to give 1-(p-isopropylbenzylamino) - 2 - (21 - ethylbutylamino) - ethane. The Specification as open to inspection under Sect. 91 comprises also the preparation of other amines of the general formula <FORM:0598312/IV/7> where R is an alkyl group or a halogen atom, R1 is hydrogen or an alkyl or aralkyl group and R2, R3 and R4 as above defined, by any known methods, including additionally the reaction of an amine of the type R.C6H4.NHR1 with a halogenated aliphatic amine. This subject-matter does not appear in the Specification as accepted.
Patent GB-526267-A (GB)
Title: Process of applying coatings of non-ferrous metals to cast iron
IPC: C25D5/50
Filed: 1939-03-10
Abstract: 526,267. Coating metals with metals. GOLDSCHMIDT AKT.-GES., T. March 10, 1939, No. 7887. Convention date, April 1, 1938. [Class 82 (ii)] [Also in Group XXXVI] In applying to cast iron, particularly cast iron bushes, coatings of non-ferrous metals by the aid of an intermediate layer of electrolytic iron, this layer is firmly united to the cast iron by annealing after applying the layer. The annealing is effected at 500-800‹C. The treated bushes may be plated with tin or tin solder before applying a bearing-metal lining.
Patent GB-181479-A (GB)
Title: Improvements in spinning mules
IPC: D01H3/00
Filed: 1921-03-14
Abstract: 181,479. Percival, W. March 14, 1921. Mules; stop-motions.- In a device for preventing the belt from being shifted back on to the fast pulley when the rim band begins to fray or unravel, the detector d, which extends over the pulley c, is carried by a spring f. An arm g normally bears against the detector d, but when the detector is moved by the rope, it is thrown over against an extension b of the belt fork lever a and drops behind a thickened end of the extension to prevent the return movement of the lever a. The device may be used as an emergency stop by the operative.
Patent GB-609840-A (GB)
Title: Electric switch plug and socket connectors
IPC: H01R13/707
Filed: 1946-03-14
Abstract: 609,840. Two-part couplings combined with switches. PARSONS, Ltd., C. H., and HANDLEY, G. B. March 14, 1946, No. 8006. [Class 38 (i)] In an interlocking switch-plug connector employing a mercury-type switch, the switch 32 is rocked on a cradle 31 which is oscillated by moving the switch-lever 27, the cradle being pivotally mounted on the socket-embracing plate 11 and connected to a rectilinearly movable member 34 operated by the lever and controlling the position of a pingripping pawl 28 in a contact tube 18 of the socket 13. The cradle pivots about a pillar 29 on the plate 11 and is pivotally connected to one limb of the member 34, which intersects a bent portion 12 of the plate 11 to engage the pawl 28 which may be of the spring-controlled kind, described in Specification 522,147. A slidable plate 47 on the plate portion 12 is impelled towards the member 34 by a spring and when the lever is " off " the plate engages an aperture 50 in the member to lock the switch in the " off " position. When the earth-pin of the plug 24 is inserted in its socket 18, the plate 47 is depressed, thus freeing the lever. A spring-controlled snap-action device 39, which co-operates with a roller 41 on the lever, is provided. Specification 487,224 also is referred to in the Provisional Specification.
Patent GB-589895-A (GB)
Title: Improvements in weighting motions for the drafting rollers of ring spinning frames and other textile machines having drafting rollers
IPC: D01H5/46
Filed: 1945-03-30
Abstract: 589,895. Weighting apparatus for the drawing mechanism of textile machines. SCHOFIELD, E. J. (Representative of SCHOFIELD, J.), and SCHOFIELD, Jun., J. March 30, 1945, No. 8086. [Class 120 (ii)] Pressure is applied to the front and back weighting saddles C<1>, C<2> of the top drafting rollers of ring spinning and like textile machines through a connecting bar D by a weighting lever E pivotally mounted on a bracket F below the roller stand and under the influence of a pressure lever G which is the sole means of applying pressure and is also pivotally mounted on the bracket F. The bracket F is capable of receiving an angular movement about an axis parallel to the rollers to allow of adjustment of the weighting lever E. The end g<1> of the pressure lever G may be hand operated to apply or increase the pressure of the other end g<2> against the weighting lever E. Additional adjustment may be effected by movement of the bracket F mounted on a bar H which, according to the Provisional Specification, may be square, hexagonal, or circular with splines, and on which is also mounted a bracket M having a nut and slot adjusting device. According to the Provisional Specification, a catch may be provided when the lever G is moved in a direction opposite to that necessary for pressure application.
Patent GB-986074-A (GB)
Title: Heat treatment of welds
Inventor: ROBERTS BRYAN
IPC: C21D9/50
Filed: 1963-02-28
Abstract: <PICT:0986074/C6-C7/1> Welds are heat-treated by applying to the region thereof a body of an exothermic composition around which and spaced therefrom is a housing formed of flexible heat resisting material, the cavity thus formed being filled with a particulate heat-insulating material. After firing the exothermic composition the housing is closed and the composition allowed to burn out and cool in situ. The housing may be formed of asbestos or metal sheet or preferably of metal mesh, and the insulating material may be exfoliated vermiculite or pearlite.  As shown in Fig. 1, weld 2 between pipes 1 is heated by exothermic sleeve 3.  Struts 5 surrounding the weld are secured by straps 4, one end of flexible blanket 6 being secured to strut 5a, e.g. by eyelets.  The blanket is then wrapped round the weld zone, possibly being secured to strut 5b, and its edges fastened by bands 7. The cavity so formed is then filled with particulate material, the exothermic body fired and the free end of the blanket brought forward to cover the opening between struts 5a and 5b. Specification 898,232 is referred to.
Patent GB-455076-A (GB)
Title: Improvements in or relating to the projection of light effects on to a screen
IPC: G09F19/18
Filed: 1936-03-18
Abstract: 455,076. Optical-projection apparatus. TATE, F. R., 103, Kingsway, London.-(Zeiss Ikon Akt.-Ges.; 72, Schandauer Strasse, Dresden, Germany) March 18, 1936, No. 8139. [Class 97 (i)] Fixed and rotatable non-uniform light refracting bodies are arranged in the beam of an optical-projection apparatus for the production of light effects on a screen ; colour filters and a mask covering the centre of the light field to enable a separate picture to be projected thereon, may be provided, and the apparatus may be pivotally mounted on the objective carrier so that it may be swung out of place. As shown, one or more discs 7, rotated by a motor 15 through a reduction gear, and one or more normally stationary discs 8, mounted on the motor casing, are provided between the slide carrier 3 and projection lens 9. The disc 7 may be made from ribbed glass, and the disc 8 may have glass sectors of different non- uniform light-refracting properties and be intermittently rotatable to vary the sector in the light beam. A filter disc 10 with different sectorial filters, a mask 4, and negative and positive lenses 5, 6, respectively, may also be provided. The optical members may be movably carried on two rods extending forwardly, or, as applied to a kinematograph projector, may be carried by arms so as to be rotatable into or out of operative position in alternation with a similarly rotatable lens for kinematographic projection. A cooling chamber may be provided in the light beam and may be combined with the lenses 5, 6. The central mask may be of metal, or of glass which is silvered or covered with metal leaf and lacquered, and may be out of an image plane so that its edges are not sharply projected.