baber/WOPTO huggingface dataset:
Patent GB-1230536-A (GB)
IPC: B23K35/30
Filed: 1969-09-04
Abstract: 1,230,536. Making turbine blades. DEUTSCHE EDELSTAHLWERKE A.G. 4 Sept., 1969 [8 Nov., 1968], No. 43850/69. Heading B3A. [Also in Divisions C7 and F1] To reduce erosion by liquid droplets at least the surface region at the leading edge of a rotor blade for a condensing turbine consists of a hardenable 10 to 15% chromium steel containing at least 0.15% carbon and the body of the blade consists of a 10 to 15 % chromium steel containing less than 0.15% carbon. The hardenable steel may be in the form of a covering layer built up on the leading edge and on the back of a preforged blade by welding. Alternatively a shaped strip may be welded to the pre-forged blade. The blank thus produced is then finish forged, heat treated and the hardenable regions flame or induction hardened. The blade can also be produced by cutting away regions of a blade blank and then welding a shaped hardenable strip over the cut away portion or building up the cut away portion by welding. The blade is then heat treated and hardened as before. Apart from carbon, chromium and iron, the leading edge and body parts of the blade also contain Si, Mn, Mo, Ni, V and N in specified proportions.
Patent GB-1230568-A (GB)
IPC: F16D25/0638
Filed: 1967-09-15
Abstract: 1,230,568. Friction clutches. S.R.M. HYDROMEKANIK A.B. 3 May, 1968 [15 Sept., 1967], No. 42099/67. Headings F2C and F2L. A fluid pressure operated disc clutch 36 is engaged by an internal servo 6, 10 rotating with the clutch and disengaged by an external stationary servo 40, 42 acting through an axial thrust bearing 57. As shown, the member 6 is integral with the clutch input shaft 2 and the drum member 10 carries a disc 20 against which the discs 36 are engaged when the members 6, 10 are urged apart by pressure fluid supplied through an inlet pipe 46 and channel 48 to a chamber 50. Member 10 is moved to the right to disengage the clutch by supplying pressure fluid to piston 40 by a second inlet pipe 54 and chamber 56, the piston carrying bearing plates 57 provided with lubricant supply channels 58. A fluid vent passage 64 is provided in the clutch member 6 and arranged to be closed by the discs 36 when the clutch is engaged. Stops 70 prevent relative rotation of members 6, 10 and the clutch discs are normally held separated by springs 74. The clutch may be mounted between a torque converter and a change-speed gear-box, the pressure fluid being obtained from the converter working fluid circuit and the inlet supply pipes 46, 54 being controlled by a pneumatic selector valve (86), Fig. 3 (not shown). Provision is made to ensure that the converter lock up clutch is held disengaged and the reaction member free to rotate so long as the friction clutch is released, and also that the lockup clutch cannot be engaged before the friction clutch.
Patent GB-1233312-A (GB)
IPC: C07J53/00
Filed: 1969-04-29
Abstract: 1,233,312. Extraction of sterols. SERDEXSOC. D'ETUDES, DE RECHERCHES DE DIFFUSION ET D'EXPLOITATION. 29 April, 1969 [14 May, 1968; 11 Dec., 1968], No. 21699/69. Heading C2U. [Also in Division A5] Citrostadienol, cycloartenol and 24-methylenecycloartanol are extracted chromatographically from the unsaponifiable matter of maize oil, the latter two compounds also being extracted, optionally via their acetates, from the unsaponifiable matter of nux vomica and from alcohol extraction residues of potato leaves.
Patent GB-1251712-A (GB)
IPC: G03C1/705
Filed: 1969-01-01
Abstract: 1,251,712. Photographic light-sensitive silver dye-bleach materials. EASTMAN KODAK CO. Jan. 1, 1969 [Jan. 2, 1968], No.34/69. Addition to 1,131,238. Headings G2C. A photographic light-sensitive silver dyebleach material comprises a support and has coated thereon a light-sensitive layer of which the light-sensitive component is a silver compound of a cyanine or merocyanine sensitizing dye (as defined in Specification 1,131,238) and in the same layer or in a contiguous layer at least one dye which is imagewise bleachable by the silver dye-bleach process. The silver compound is usually coated at a coverage of 0À5 mg to 10 mg of heavy metal content per sq. ft. The coloured image is produced by forming silver image(s) by physical development of a material as defined above which has been imagewise exposed, and bleaching the dye or dyes associated therewith in accordance with The silver image(s). Specification 1,251, 711 is referred to.
Patent GB-1253086-A (GB)
IPC: A63H18/00
Filed: 1969-01-16
Abstract: 1,253,086. Track and support, for toy vehicles. MATTEL Inc. 16 Jan., 1969 [19 Dec., 1968], No. 27939/70. Divided out of 1,253,084. Heading A6S. Apparatus for use with a toy vehicle comprises a vehicle track means, a track support means and attachment means for attaching the track to its support wherein the attachment means includes a bracket on the support and a channel means on the track means, whereby the bracket is loosely coupled with the channel means when the bracket is in a first position relative to the channel means, and the bracket is securely coupled when it is in a second position relative to the channel means. In Fig. 3 a bracket or land is sited on a support, or trestle, and the channel means may be sited, e.g. on an extension sited on the inside of a curved and banked track (Fig. 3), or on the underside of a normal track section (Fig. 5). Two or more trestles may be connected on top of each other by means of undercut keyways (174) and keys (176) (Fig. 4, not shown) thus providing a two or greater level interchange.
Patent GB-1258504-A (GB)
IPC: G01J3/18
Filed: 1969-03-05
Abstract: 1,258,504. Spectrometers. SPECTRAMETRICS Inc. March 5, 1969 [March 6, 1968], No. 11827/69. Heading G2J. In a spectrometer comprising a prism 11, an echelle grating 12 and collimating mirrors 22, 23, energy incident on the entrance slit 21 is displayed at the exit focal plane as a two dimensional array. Light from a source 25 passes through an optical system 26, the slit 21 and via mirror 22 to prism 11 where it is dispersed in a plane parallel to slit 21 and strikes grating 12. Light reflected from the grating passes back through prism to mirror 23 where it is reflected to the exit focal plane. The prism and grating are mounted on parallel rotatable shafts 14 and (15), Fig. 1 (not shown), a further shaft 16 normal to shaft (15) and parallel to the grating ruling mounts the grating. The output may be dectected by image tubes, image intensifiers, image converters, spatial/temporal encoders, optical correlators or dectector arrays.
Patent GB-1264395-A (GB)
IPC: C07D315/00
Filed: 1969-10-27
Abstract: 1,264,395. Purification of #-lactones. KANEGAFUCHI BOSEKI K.K. 27 Oct., 1969 [30 Oct., 1968; 4 Feb., 1969], No. 52619/69. Heading C2C. #-Lactones of the general formula where R 1  and R 2  are each H, alkyl or aryl, containing impurities, are purified by contacting with at least one solid agent selected from a metal oxide, a non-metal oxide, potassium permanganate and a mixture of potassium permanganate with at least one metal salt. Suitable oxides are those of metals Be, Mg, Ca, Sr, Ba, Pb, Mn, Cd, W, Cr, V, Mb, Ni(II), Cu(I), Zn, Al, Sb, Sn, Ag(I), Fe,- Ce, Zr, Bi and Ti. Preferred non-metal oxides are those of B, Si, Se and As. The metal salt may be cupric chloride, zinc chloride, cupric nitrate, zinc nitrate or bismuth nitrate. The impure #-lactone may be contacted by shaking with loose oxide, by passing through a layer of oxide or by placing in a container having an inner wall covered with a layer of the oxide. In the examples, pivalolactone is purified.
Patent GB-1264486-A (GB)
IPC: B27F7/21
Filed: 1969-05-07
Abstract: 1,264,486. Stapling machines. R. W. PABICH. 7 May, 1969, No. 23381/69. Heading B4C. In a stapling machine, the staples are formed from wire 11a by a former 13, having a recess 13a, Fig. 4, which co-operates with a mandrel 16 to bend a length of wire fed to the mandrel to form a staple 11 which is then transferred by a gripper 20 to a gripper 22 which holds the staple in position to be driven into the workpiece by a driving blade 14. The wire 11a is fed by wheels 60, 61 into a groove 16a of the mandrel 16, and a groove 20b of the gripper 20 which is slidable through the mandrel. The former 13 is then moved downward by a cam follower 15 in a cam track 46, so that a blade 13b, Fig. 4, on the former 13 severs the wire 11a, and the recess 13a bends the severed length around the mandrel 16. When the former 13 is moved upwards, the gripper 20 and formed staple 11 are moved towards the gripper 22 by a cam 38 and pivoted follower 40. The gripper 22 has a projection 22a, Fig. 7, with a slot 22b which receives the staple 11, the projection 22a being received in a slot 22c in the gripper 20. Magnets 22c in the gripper 22 attract the staples. The gripper 20 is then withdrawn by a spring 20e and the blade 14 is driven downwards by means of an eccentric arrangement 46a, 47, 47b, to force the staple out of the gripper 22. When the staple is driven in, the gripper 22 is biased to its normal position by a spring (not shown) and clinching anvils 18, 18a are actuated by means of yoke arms 56, 56a pivoted downwards by arms 58, 58a which are linked to the former 13.
Patent GB-1289967-A (GB)
IPC: C07F3/00
Filed: 1968-12-24
Abstract: 1289967 Organo-metallic-aromatic acetals FERROSAN AB 23 Dec 1969 [24 Dec 1968] 62673/69 Divided out of 1289966 Headings C2C and C2J A compound having a general formula is claimed per se ; wherein X is (a) a monovalent metal atom or (b) an inorganic or organic radical containing a magnesium atom and in which a magnesium-aryl carbon bond is present and R represents an acetal group having the general formula in which R 1  and R 2  represent hydrogen or an alkyl group having 1 to 3 carbon atoms, where the acetal group OR is in the meta- or paraposition with respect to group X. The group X is preferably a magnesium bromide group or an alkali metal, but may also be a group containing mercury, cadmium, beryllium, zinc or calcium. The preferred compounds are p-alkoxyethoxyphenyl magnesium bromide and p-methoxymethoxyphenyl magnesium bromide, which may be prepared by reacting the corresponding protected p-bromophenol with magnesium in a suitable solvent. Addition of dioxan to m-ethoxyethoxyphenyl magnesium chloride in THF precipitated magnesium chloride to yield bis- (m-ethoxyethoxyphenyl) magnesium. The magnesium containing compounds of Formula I may be used to prepare compounds of Formula I containing the above other metals by reaction with either the appropriate metal or metal salt. The compounds according to the invention may be used to prepare (a) 1,2-bis-(p-hydroxyphenyl) - p - methoxy - phenyl - 1 - butene, (b) cis- and trans-p-hydroxystilbenes, (c) α-(mhydroxyphenyl) - # - alkyl - (or cycloalkyl) - # - phenylethylimine, (d) p-hydroxyphenyl-(4-carbethoxycyclohexyl) - ketone, (e) bis - (p - hydroxyphenyl) - 2,2,6 - trimethylcyclohexylidene methane, (f) bis-(p-hydroxyphenyl)-cyclohexylidene methane, (g) p-hydroxybenzoic acid-C<SP>14</SP> and (h) the reaction between p-methoxymethoxyphenyl lithium and p-methoxymethoxyphenyl-2-t-butylcyclohexyl ketone is disclosed presumably yielding bis-(p-methoxymethoxy phenyl)-2-t-butylcyclohexyl carbinol.
Patent GB-1295752-A (GB)
IPC: C08G65/26
Filed: 1970-04-22
Abstract: 1295752 Polymerizing beta-propiolactones KANEGAFUCHI BOSEKI KK 22 April 1970 [25 April 1969] 19392/70 Heading C3R A #-propiolactone of formula where R 1  and R 2  may be hydrogen or an alkyl or aryl group, is polymerized in the presence of an anionic catalyst and an epoxide of formula where R 3 , R 4  and R 5  may be hydrogen or an alkyl, aryl, arylkyloxy, chlorinated alkyl or cycloalkyl group. The anionic catalyst may be a tertiary amine, an organic acid salt, a phosphonium compound, a sulphonium compound or a quaternary ammonium compound.
Patent GB-1297128-A (GB)
IPC: H01J37/18
Filed: 1969-12-12
Abstract: 1297128 Gettering PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Dec 1969 [17 Dec 1968] 60746/69 Heading H1D An electromagnetic object lens for an electron microscope comprises coil 5, a magnetic circuit forming envelope including iron sheath 6 for instance with core 9 passing axially through the coil and bore 10 for electron beam passage and an electron lens forming gap so that in operation object 1 may be located in the beam, and gettering means within the envelope comprising annular box 12 with means for producing a gas binding metal coating on the inside surface of the box by evaporation and having an annular opening 13 so that the gas present outside the box can enter and be held by the gas binding metal coating but the gas binding metal is prevented from escaping from the box during evaporation, the annular opening being located at a wall remote from coil and adjacent the said gap. The getter reduces the number of gas particles present following release from the walls and rubber seals and reduces the raised gas concentration in the electron beam region, so reducing particle condensation on the object for example. Object plate 2 is often provided for object to beam adjustment, and screen 14 inhibits penetration of the evaporating material into the vacuum space. Annular duct 15 with nipples 16 and 17 carries coolant, while box 12 is of Cu of adequate thickness to assist heat conduction. Heating wire 18, preferably W or Al is coated with the material, e.g. Ti, to be evaporated or alloyed with same.
Patent GB-1297209-A (GB)
IPC: B24B39/02
Filed: 1971-04-19
Abstract: 1297209 Rolling apparatus COGSDILL TOOL PRODUCTS Inc 19 April 1971 [21 May 1970] 25887/71 Heading B3M A roller burnishing tool for finishing the internal surface of a cylinder includes a driving spindle 11 having a frusto-conical working end 14, and a number of rollers 61 disposed around the end 14 in a cage 58, the cage being movable axially relative to the spindle 11 to adjust the radial spacing of the rollers. The cage is biased in one direction relative to the spindle by spring pressure, and in the opposite direction by fluid pressure. In one form, Fig. 1, the cage is connected to a sleeve 46 which is coupled to an annular piston. Springs 41 bias the piston to the left, whereas fluid pressure introduced through a port 31 biases it towards the right, in a sense to urge the rollers outwardly against a cylinder. A further port 54 is used for feeding a coolant or lubricant along the sleeve to the rollers. The cylinder can be held rotationally stationary but longitudinally movable so that it is fed over the rollers by the slight skew angle of the rollers. In a second form, Figure 4, the piston is replaced by a stack of spring washers 72 which urge the cage to the right to apply the rollers outwardly. A cylinder 84 exerts an opposing force tending to retract the rollers, and may be used to control the radial force exerted by the rollers on a cylinder.
Patent GB-1305194-A (GB)
IPC: C11D3/386
Filed: 1969-07-09
Abstract: 1305194 Hydrolytic enzyme mixture ASTRA LAKEMEDEL AB 9 July 1970 [9 July 1969] 34696/69 Heading C3H [Also in Division C5] A hydrolytic enzyme mixture is prepared by subjecting the microorganism Cephalosporium ATCC 11550 or mutants thereof to submerged aerobic fermentation in a nutrient medium, and recovering the enzyme mixture. The nutrient may comprise sources of carbon, nitrogen and inorganic salts, and the fermentation may be at pH 4À5-9À5 for 30-120 hours at 20-35‹ C. The enzymes may be recovered from the solution obtained after removal of the cells from the fermentation medium by precipitation, e.g. with tannin, lignin, acetone, isopropanol or inorganic salts such as Na 2 SO 4 , (NH 4 ) 2 SO 4 , or by spray-drying. Among the properties of the hydrolytic enzyme mixture are: (a) it comprises aromatic amino acids; (b) it is proteolytically active against casein, fibrin, haemoglobin, albumin, gelatine and elastine, and also contains esterases, lipases and amylases, (c) shows little or no peptidase activity against a variety of peptides, and (d) its caseinolytic activity is unaffected by the presence of Mn<SP>++</SP>, Co<SP>++</SP>, Ca<SP>++</SP>, Mg<SP>++</SP> and EDTA.
Patent GB-1306616-A (GB)
Title: Air cushion vehicle
IPC: B60V1/00
Filed: 1970-12-30
Abstract: 1306616 Air cushion vehicles R V TAYLOR 30 Dec 1970 61875/70 Heading B7K [Also in Division F2] In an air cushion vehicle 10, Fig. 1, in which an airscrew 27 and a centrifugal fan 26 are both coupled to an engine 25, a plenum chamber is formed by a bag skirt 13 and a wall 14 containing louvres 23 which are adjustable in order to control the pressure distribution between the skirt enclosure and the cushion space 16. Fan 26 and screw 27 are arranged to be efficient only at relatively low and high speeds respectively, the fan providing sufficient air to fill skirt 13 before the airscrew can develop substantial thrust; thus the vehicle 10 is lifted almost to take-off point with louvres 23 closed, then take-off is achieved when they are opened. As the fan efficiency drops with higher speeds the louvres are closed to a position which is just sufficient to ensure that the air cushion exists; the fan is then partially choked so that additional engine power is mostly available for the airscrew. A lever and pedal arrangement connected to the engine throttle by means of the outer and inner parts of a Bowden cable (Fig. 2, 3, not shown) may be used to control the engine speed, the lever determining the minimum speed which will inflate the skirt with the louvres closed and the pedal serving to increase the speed beyond this point.
Patent GB-1310295-A (GB)
Title: Method of reducing the thickness of metal
IPC: B21B37/26
Filed: 1970-05-19
Abstract: 1310295 Rolling mills; making strip IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 30 June 1971 [19 May 1970] 24214/70 Headings B3A and B3M A length 15 of metal is rolled in a pendulum mill 10 in such a manner that its leading and/or trailing end has a reduced thickness compared with the remainder of the length. When the length is subsequently reverse-rolled under tension using one or more coiler drums, or is subject to strip grinding, the reduced ends compensate for the thicker ends which are normally left. Several lengths 15 may be joined end to end before reaching the pendulum mill, in which case the mill is controlled so that the regions adjacent the joins have a reduced thickness. The rolled strip is subsequently sheared by blades 22 into separate lengths, the shearing operation removing the entire joint area between adjacent lengths.
Patent GB-1310493-A (GB)
Title: Combined swivellable ventilating nozzle and flow control valve
IPC: B60H1/34
Filed: 1969-01-11
Abstract: 1310493 Valves SMITHS INDUSTRIES Ltd 4 March 1970 [11 Jan 1969 4 Feb 1969] 1760/69 and 9997/69 Heading F2V [Also in Division F4] An air inlet unit for mounting in a vehicle dashboard comprises a housing 1 containing a universally swivellable nozzle 3 at its downstream end, a valve member 14, a shaft 9 with universal or flexible couplings at both ends interconnecting the nozzle 3 and valve member 14 and an arm 16 of the shaft 19 which so co-operates with member 14 that rotation of the shaft 9 by nozzle 3 produces opening or closing movement of member 14. In the form shown, a part cylindrical lug 17 projects from valve member 14 and the free end of arm 16 runs in a slot 18 in the lug 17. In the fully open position of the valve member 14, the lug 17 is closely spaced from the housing 1 throughout its length and the shaft 9 is received in a recess 20. The shaft 9 may include flexible members and is telescopic if the coupling between nozzle 3 and shaft 9 is not arranged at the centre of rotation of nozzle 3. The shaft 9 and a spindle 6 of nozzle 3 may be replaced by a single flexible cable. In another embodiment, the valve member 14 is spring- biased to its open position and the arm 16 of shaft 9 contacts a circular row of recesses in the member 14 to hold the member 14 in any selected position. The shaft 9 may include two spaced arms 16 at right angles to one another, which contact member 14 in turn when shaft 9 is rotated. The member 14 is slightly elliptical in shape. A bezel 2 of housing 1 is removable and may include stops to limit the angular movement of nozzle 3. The shaft 9 may be arranged to act as a light guide to indicate the position of the member 14.
Patent GB-1314819-A (GB)
Title: Fluid flow diffusion ducts of gas turbine engines
IPC: B64D33/00
Filed: 1969-07-30
Abstract: 1314819 Boundary layer control DEFENCE SECRETARY OF STATE FOR 3 July 1970 [30 July 1969] 38150/69 Heading F2R [Also in Division F1] A diffusing fluid flow duct comprises an upstream wall portion with a discontinuity therebetween there being means adjacent the discontinuity for promoting the formation of a vortex which forms a moving fluid wall between the wall portions and which circulates in a direction such as to promote attachment of a fluid flow leaving the upstream wall portion on to the downstream wall portion. In a first embodiment the invention is described with reference to the air intake of a gas turbine engine the intake comprising pairs of adjustable flaps 34, 36 which normally provide a smooth surface to the air intake but which when moved to the reduced area position, Fig. 3, form a discontinuity therebetween. The adjacent sides of the flaps are shaped so as to form a toroidal cavity 64 therebetween when in the reduced area position and fluid under pressure is supplied into the toroidal cavity through nozzle 68, the vortex flow leaving the edge 72 causing the boundary layer of the intake air flow to flow adjacent the surface of the intake as indicated by arrows 74. Without the flow in the cavity, the boundary of the intake air flow would be as indicated at 60 with resulting eddying flow in the region 62. The flap member 34 is mounted on links 42, 44 at pivot points 38, 40, the link 44 being pivotally mounted on fixed structure at 46 and the link 42 being pivotally connected to a member 48 which is movable axially by an actuator 50; the links 42, 44 are interconnected at point 56. The flap 36 is pivotally mounted on fixed structure at 52 and is interconnected with the flap 34 at 54. The flaps are moved from the Fig. 2 position to the Fig. 3 position when the intake area is to be reduced. Air under pressure tapped from the engine compressor is supplied to the nozzle 68 also to the nozzle 70. In Fig. 4 the invention is shown applied to the diffusion passage between the outlet of compressor 100 and the inlet to combustion equipment 101. The compressor outlet is indicated at 102 and a wall 110 defining two toroidal cavities 104 is provided, the vortex flows created acting to prevent break-away of the air flow.