baber/WOPTO huggingface dataset:
Patent GB-1019857-A (GB)
Title: Jet propulsion nozzle assembly
Inventor: SHAW WILLIAM
IPC: F02K1/44
Filed: 1964-11-11
Abstract: 1,019,857. Jet propulsion nozzles. ROLLSROYCE Ltd. Nov. 11, 1964, No. 46053/64. Heading F1J. A noise shield extends beneath a jet nozzle, the nozzle and the shield being relatively disposed or disposable so that the latter extends downstream of the former, whereby noise is reflected upwardly. As shown, a pod 12, in which is mounted a gas turbine engine, is cut away at its downstream end at 30 to form the noise shield 31. The engine jet pipe 14 is mounted within an outer casing 15. A nozzle member 17 is provided with three angularly spaced guides 25 each carrying two axially spaced rollers 26 movable along one of three tracks 27 mounted within the pod. The nozzle member 17 is movable by a ram 23 between the downstream full line and the upstream dotted line positions. In the former position the silencer is not effective and portions 20, 21 of the member 17 and the outer casing 15 respectively abut to prevent jet gases passing therebetween. In the latter position the silencer is effective and an annular gap 24 is formed between the nozzle member and the outer casing, gases from the jet pipe 14 flowing therethrough and the effective area of the nozzle being thus increased.
Patent GB-1153679-A (GB)
Title: Process for the production of Solidified Trioxan
Inventor: DECITRE PIERRE
IPC: C07D323/06
Filed: 1967-10-10
Abstract: 1,153,679. Crystallizing trioxan. HOUILLERES DU BASSIN DU NORO ET DU PAS-DE-CALAIS. 10 Oct., 1967 [19 Oct., 1966], No. 46177/67. Heading B1G. [Also in Division C2] Apparatus (Fig. 1) for solidifying liquid trioxan consists of an internally cooled rotatable stainless steel cylinder C, a delivery pipe P for liquid trioxan and a semi-cylindrical trough for collecting excess liquid trioxan. During operation a layer of solidified trioxan of thickness e is formed on the cylinder and is detached at D. A modified apparatus (Fig. 2) comprises a rotatable internally water-cooled cylinder C and a double-walled jacket E, means being provided for circulating a heating medium through. the jacket E. The liquid trioxan is fed from the top of the apparatus into the space between the cylinder and' jacket at impellers M 1  and M 2  project the liquid trioxan on to the rotating cylinder.
Patent GB-921955-A (GB)
Title: A supported catalyst for olefin polymerisation
IPC: C08F10/00
Filed: 1961-12-27
Abstract: A component of a supported catalyst for the vapour phase stereospecific polymerization of alpha-olefins is prepared by impregnating an inert inorganic granular support with metallic aluminium and then contacting the resulting material with a halide of a transition metal of Group IV, V, VI or VIII in its highest valency state in excess of the chemical equivalent of the aluminium and less than that which would saturate the support, at 100 DEG  to 400 DEG C. under anhydrous and inert diluent- and oxygen-free conditions. Specified supports are calcium chloride, sodium carbonate, calcium phosphate and magnesium chloride while titanium tetrachloride and vanadium pentachloride are specified halides. The component together with an organometallic compound of a metal of Group II or III, e.g. aluminium or beryllium alkyls, and alkyl halides is used to polymerize alpha-olefins, e.g. propylene.  The organometallic compound may also be supported preferably on polypropylene granules. The product is purified by washing with water, and methanol and drying.
Patent GB-1029140-A (GB)
Title: Fluid pressure apparatus
Inventor: BLOWERS ROGER ARTHUR
IPC: F16J15/06
Filed: 1962-12-10
Abstract: 1,029,140. Pipe coupling; mechanical seals. DOWTY TECHNICAL DEVELOPMENTS Ltd. Dec. 5, 1963 [Dec. 10, 1962], No. 46487/62. Headings F2B and F2G.  A rotary pipe coupling comprises a main member 1, an annular member 2 pivotally mounted in the member 1, and a pipe 3 extending from the member 2. The member 2 is held between member 1 and abutment 9 by a bolt 6 and a spacer 8. Flat abutment surfaces 11, 12 are formed in member 1 and the abutment 9, and 13, 14 on member 2, the pairs of faces 11, 13 and 12, 14 being slightly separated. A pair of seal assemblies are situated in recesses 18, 19 situated adjacent the pairs of flat faces, comprising a ring 21 of springy metal having a flange 23, a ring 25 of nylon adjacent the ring 21, also having a flange portion, a metal washer 27 and a " wave " spring 28 acting to compress the rings. Pressure in the rings serves to maintain a sealing fit. When the member 2 rotates it tends to carry the ring assembly with it, there being a low coefficient of friction between ring 24 and member 1.
Patent GB-468121-A (GB)
Abstract: 468,121. Copying by scanning. BUBNOFF, B. Sept. 23, 1935, No. 31844/36. Divided out of 459,749. [Class 40 (iii)] In a system for reproducing single or multicoloured pictures on walls, ceilings, or other immovable surfaces by the photo-electric scanning of multi-colour or separated colour original pictures, colour-applying appliances are moved over the wall synchronously with the scanning operation. As shown in Fig. 2, colour-separated pictures R, L, G, are mounted for movement in two directions to facilitate scanning relative to the light sources 4, and photo-cells 7R, 7L, 7G. The cells are connected through amplifiers 10G, 10L, 10R to colouratomizers 8R, 8L, 8G, which are also mounted for two-directional movement and are adapted to apply different colours to a stationary surface. In a modified scanning arrangement, a stationary original picture is used and a light source and photo-cell co-operate with lens systems to produce the scanning operations.
Patent GB-948430-A (GB)
Title: Improvements relating to vehicles
IPC: B62D31/04
Filed: 1962-12-13
Abstract: 948,430. Vehicle bodies. R. E. COX. Dec. 13, 1962, No. 47160/62. Heading B7B. A transparent or translucent panel 11 is secured preferably with channels 12 to the outside of a vehicle body 10, the space so formed housing a fluorescent tube 13 providing backlighting for a sign or advertisement secured to the outside of the panel 11. The space housing the tube 13 may be rectangular or wedge-shaped in cross-section.
Patent GB-1175256-A (GB)
Title: Improvements in or relating to Devices for Driving in Fastening Means such as Nails or Staples.
IPC: B25C1/04
Filed: 1967-10-18
Abstract: 1,175,256. Nailing and stapling tools. JOH. FRIEDRICH BEHRENS. 18 Oct., 1967 [12 July, 1967], No. 47488/67. Heading B4C. A pressurized fluid actuated tool for driving fasteners, such as staples or nails 65, comprises a differential piston 13, 15 connected to a driver 59 and a control valve arrangement 85, 97 for directing the pressurized fluid to the upper surface of the larger piston 13, the latter, in the inoperative position of the tool shown, being held against a sealing diaphragm 25 by pressurized-fluid in a chamber 73. A valve member 37 is secured to the diaphragm 25 and is provided with a bore 115. The valve 97 is in the form of a tube connected to a feeler 103 and provided with ports 105, 109. In operation, upon pressing the nozzle of the tool 21 against a workpiece, the tube 97 is raised, thereby bringing the port 105 into alignment with a passage 93 and the port 109 into communication with an annular space 111. Upon actuating the trigger 89, pressurized fluid flows from a reservoir 69, opened valve 85, passage 93, ports 105, 109, passage 113 and bore 115 to act on the piston 13, thereby moving it downwardly. Directly the piston breaks sealing contact with the diaphragm, pressurized fluid in a chamber 71 acts on the piston via the now open topped cylinder so as to effect a driving stroke. At the end of the stroke fluid passes from the chamber 71, slot 75 in the cylinder, one-way valve (121, Fig. 3), a passage (125) to a space 31 above the diaphragm, thereby closing the top of the cylinder and exhausting the cylinder space 41 above the piston 13. The piston then rises until its upper surface abuts the diaphragm and moves the valve member 37 into sealing contact with the cylinder head 23 to close the exhaust passage; the tool will continue to re-cycle as long as the trigger is depressed and the feeler 103 in contact with the workpiece.
Patent GB-1358464-A (GB)
Title: Valve cores for pneumatic tyre valves for vehicles
IPC: F16K15/20
Filed: 1972-10-16
Abstract: 1358464 Valves H G RISSMANN 16 Oct 1972 [1 Feb 1972] 47596/72 Heading F2V A valve for a pneumatic tyre comprises an inner sleeve 1 sealed by a seal 6 to an outer sleeve 18 and a valve pin 2 which carries a closure member 10 of elastomeric material having at least one cylindrical surface of reduced diameter (10<SP>1</SP>, 10<SP>11</SP>) such that in the closed condition a seal is effected between a shoulder of the closure member and a radially extending portion of the inner sleeve as well as between the reduced cylindrical portion and the inner wall of the inner seal. In one embodiment when only one reduced portion is provided, the adjacent end of the inner sleeve is provided with a constriction.
Patent GB-1483163-A (GB)
Title: Method for preparing high cis polyalkenamers
IPC: C08G61/08
Filed: 1975-11-19
Abstract: 1483163 High cis polyalkenamers GOODYEAR TIRE & RUBBER CO 19 Nov 1975 47629/75 Heading C3P Polyalkenamers are prepared by polymerizing cyclooctene or 1,5-cyclooctadiene in the presence of a catalyst comprising (A) R 4-n SiY n  where R is alkyl, alkenyl or aryl, Y is vinyl, alkoxy, aryloxy or aralkoxy and n is at least 2, (B) R m-n1 WX n1  where X is Cl or Br, R is alkoxy, aryloxy, haloalkoxy or alkaryloxy, m is 6 when X is Cl and 5 when X is Br, and n<SP>1</SP> is 3 to 6, and (C) AlR 1 R 2 R 3  where R 1 , R 2  and R 3  are alkyl, aralkyl or halogen. The polymerization may be effected in solution or bulk in the presence of molecular weight modifiers, e.g. octene-2. Examples describe the use of catalysts comprising (A) diphenyldivinyl silane, tetravinyl silane or diphenyl dimethoxysilane, (B) (CH 3 CH 2 O) 3 WCl 3 , (CF 3 CH 2 O) 3 WCl 3  or and (C) ethyl aluminium dichloride or diethyl aluminium chloride.
Patent GB-1057360-A (GB)
Title: Derivatives of dihydrocinnamaldehyde useful in perfumery
IPC: C07C45/85
Filed: 1965-11-10
Abstract: Cleansing materials such as soap cakes and an alkyl aryl sulphonate/phosphate detergent contain as a perfume ingredient a dihydrocinnamaldehyde, optionally a -Me substituted, which contains as a nuclear substituent 3,4-(CH2)4, or-in the 2- or 4-position-cyclohexyl or primary C4-6 alkyl or alkenyl, but excluding 4-isobutyldihydrocinnamaldehyde.ALSO:The invention comprises dihydrocinnamaldehydes, optionally a -Me substituted, containing as nuclear substituents 3,4-(CH2)4, or-in the 2- or 4-position-cyclohexyl or primary C4- 6 alkyl or alkenyl; 4-isobutyldihydrocinnamal dehyde is specifically excluded.  These compounds are made by a Friedel-Crafts reaction of the corresponding substituted benzene with acrolein, methacrolein or a diacylate thereof; where a diacylate is used, the product is hydrolysed to the aldehyde.  Ortho- and para-isomers of the aldehydes are separated by reaction with NaHSO3 in MeOH and cooling to precipitate the p-bisulphate complex which is then separated, the o-isomer being recovered from the mother liquor.ALSO:Perfumes and cosmetic preparations contain a dihydrocinannamaldehyde, optionally a -Me substituted, which contains as a nuclear substituent 3,4-(CH2)4, or in the 2- or 4- position-cyclohexyl or primary C4-6 alkyl or alkenyl, but excluding 4-isobutyldihydrocinnamaldehyde.  Examples of perfume compositions, talcum powder, antiperspirant lotion and cold cream are given.
Patent GB-1533844-A (GB)
Title: Cutting tools
IPC: B23B27/18
Filed: 1974-11-05
Abstract: 1533844 Soldering MICOR AB 29 Jan 1976 [5 Nov 1974] 47874/74 Heading B3R A method of preparing a cutting tool (e.g. of steel) to receive at least one tip or segment (e.g. of WC) comprises plasma spraying a layer of silver solder (e.g. 0À002-0À015 ins thick) to the zone to which the tip or segment is to be applied. The tip may be applied by induction heating using a suitable flux. The sprayed on layer may comprise a 50/50 mixture of silver solder and copper, or successive layers of silver solder, copper (with or without a silver solder additive) and silver solder plasma sprayed on the cutting tool. A described silver solder contains Ag-Cu- Cd-Zn and may have 3% Ni.
Patent GB-1132696-A (GB)
Title: Process for electrolytically coating metallic surfaces with aluminium
IPC: C09D163/10
Filed: 1965-11-12
Abstract: 1,132,696. Electrolytic deposition of aluminium. NIPPON KOKAN K.K. Nov.12, 1965 [Nov.13, 1964; Feb.24, 1965(2)], No.48121/65. Heading C7B. In a process for electrolytically coating metallic surfaces with aluminium in a molten salt bath containing aluminium chloride, hydrogen ions are supplied to the reacting zone between the metallic surface and the molten salts. The hydrogen ions may be supplied by coating the metallic surface with a film of a supply source e.g. with an aqueous film or with a film of hygroscopic inorganic or organic material, for instance in aqueous solution; by introducing hydrogen and/or hydrogen chloride gas in the form of small bubbles into the electrolyte or by cathodic treatment of the metal surface deposition of aluminium thereon, in an acid bath containing Pb, Sn, Ti, Zn, Bi, Cr or Cd.
Patent GB-1106824-A (GB)
Title: Antenna system, such as for use on space craft and the like
IPC: H01Q9/38
Filed: 1965-11-12
Abstract: 1,106,824. Aerials. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 12 Nov., 1965 [13 Nov., 1964], No. 48257/65. Heading H4A. An aerial system comprises two adjacent independently fed active elements having different radiation pattern characteristics, one of said active elements acting as a ground plane for the other. As described, a unipole aerial 14, Fig. 2, projects axially from a tubular support 12 mounted on an end face 6 of a drum-shaped artificial satellite 2, and two crossed dipoles 18, 18<SP>1</SP> extend outwards from the base of the unipole 14, being connected to the support 12 at the centres of their upper limbs. An information transmit/receive apparatus 28, Fig. 4, is connected by a coaxial cable 26 to the aerial 14. The lower limbs of the crossed dipoles 18, 18<SP>1</SP> are centre fed by a command and telemetering transmit/receive apparatus 40 via coaxial cables 36, 36<SP>1</SP> and baluns 34, 34<SP>1</SP>. A quadrature phase shifter 35 is interposed in the cable 36<SP>1</SP> so that the crossed dipoles 18, 18<SP>1</SP> operate as a turnstile aerial, with an omni-directional radiation pattern characteristic. In use, the attitude of the satellite (2), Fig. 5, (not shown), is stabilized so that the aerial (14) points to the centre of the earth. The angle (#) between the bisector of the main lobe (on a cross-section) of the radiation from the aerial (14) and the vertical is dependent upon the angle (γ) made by each half of the folded dipoles (18), (18<SP>1</SP>) with the axis of the satellite.
Patent GB-1506418-A (GB)
Title: Obliquedisplacement sliding door
IPC: E05F15/56
Filed: 1975-11-25
Abstract: 1506418 Door operating apparatus FAIVELEY SA 25 Nov 1975 [10 Dec 1974] 48457/75 Heading E2M An oblique-displacement sliding door having a vertical door leaf 2b with a horizontal sliding axis parallel to a top edge of the leaf includes guide means e.g. the oblique end portions of upper guide rails 7c. 7d, to guide the leaf 2b transversely into and out of engagement with a door frame 1, and is operated by e.g. a jack 3 connected to a carriage 14b which is slidably mounted in a guide 15b and located opposite the top edge alone of the leaf 2b, the carriage 14b sliding in a direction parallel to the sliding axis of the leaf 2b. The carriage 14b is connected to the leaf 2b by a deformable coupling system such as crank-arms 16c, 16d pivoted on vertical axes at Z 1 , Z 3 , Z 5 , Z 7 , the leaf 2b being suspended at Z 1 , Z; by means including provision for vertical adjustment (Fig. 4, not shown). Alternatively, the deformable coupling system comprises vertical arms rigidly attached to the carriage 14b at their, upper extremity, but with means allowing vertical adjustment, and each lower extremity being slidably mounted on a transverse rod secured to the top edge of the leaf 2b (Figs. 7-12, not shown). Preferably the carriage 14b and guide 15b comprises a slide-bar and a ball slideway respectively, and if, as shown, two opposite leaves 2a, 2b are mounted symmetrically on a common sliding axis, then their movements may be coordinated by providing a nut 24a, 24b attached to each slide bar 14a, 14b, the nuts running on a rotatably mounted threaded rod 25a, 25b. An alternative coordinating mechanism may be provided by endless chains associated with a reduction-gear motor. Pipes 4a, 4b of the jack 3 may be opened to the atmosphere to allow hand-operation of the doors by means of handles 6a, 6b. The construction of the operating apparatus may be such that the slideways 15a, 15b, threaded rod 25a, 25b, and jack 3 are mounted in superposed relation above the upper guide rails 7a-7d, the member 23b connecting the jack 3 to the slide-bar 14b being arcuate as it passes round the profile of the supports of the rod 25a, 25b (Figs. 5, 6, not shown).
Patent GB-1150457-A (GB)
Title: Improvements in or relating to Chain Tensioning Devices
Inventor: CASSELS WILLIAM ALFRED
IPC: F16H7/08
Filed: 1966-11-01
Abstract: 1,150,457. Chain gearing tensioners. HUMBER Ltd. 26 Oct., 1967 [1 Nov., 1966], No. 48831/66. Heading F2Q.  A chain tensioning device comprises a slipper 16 mounted on an arm 14 having a fixed pivot 15, a strut 17 pivoted at 18 to the arm 14 or the slipper 16 and having its free end 19 slidably engaging a wall 20 of the chain casing, the strut being inclined at less than 90 degrees to the wall 20, and a tension spring 21 which urges the strut in a direction to increase said inclination, to press the slipper against a chain to be tensioned. The arm 14 and strut 17 may be steel pressings or non-ferrous die castings, with the slipper of hard rubber or nylon, or the arm, strut, and slipper may be of nylon and could then be a single moulding joined by a membrane hinge at 18.
Patent GB-1408023-A (GB)
Title: Emergency parachute
IPC: B64D17/62
Filed: 1972-10-24
Abstract: 1408023 Parachutes BEKLEIDUNGSWERKE SEIFHENNERSDORF VEB 24 Oct 1972 48962/72 Heading B7G A parachute for emergency use comprises a canopy 14 formed from gores 15 forming an apex opening 16 and having an annular panel 17 secured at its inner periphery to the edge of opening 16 and at peripherally spaced points at its outer periphery to every third gore seam whereby on release of the canopy the panel is inflated in scollops 20 to facilitate deployment of the canopy 14. To facilitate ready release of the canopy from its pack, the skirt portion only of the canopy is stored within the pack which comprises a base 1 and an arrangement of flaps. In Figs. 1 and 2 (wherein the flaps of Figs. 1 are omitted from Fig. 2 and vice versa, for clarity) the base 1 carries loops 6 for securing the rigging lines upon which the canopy is laid so that the skirt lies adjacent seam 25 of flap 9, which is then folded over the canopy without fastenings. Thereafter flaps 7 and 8 are folded over and fastened to one another by fastenings 11 and 21. The first fold of the canopy is then laid over the fastened flaps 7 and 8 and covered by folding over flap 10, which is secured by fastenings 22 and 23. The whole is enclosed in an outer pack, having base 1 common with the inner pack by folding over outer flaps 2, 3, 4, 5.
Patent GB-1034859-A (GB)
Title: Alloy
IPC: C22C38/28
Filed: 1963-12-11
Abstract: A steel consists of C less than 0.25% Si 0.1-0.75% Mn 0.5-1.5% Cr 0.6-1.5% Mo 0.1-0.6% V 0.02-0.2% one or Ni 0.6-2.0% both B 0.0005-0.005% A1N one BeN or NbN 0.03-0.18% more TiN ZrN optionally Cu 0.2-0.7% the balance, apart from incidental impurities, being iron.  The steel is beat treated by quenching (e.g. with water) from above the A3 point but preferably not above 1200 DEG C. and tempered at below the A1 point but above 550 DEG C.
Patent GB-1523319-A (GB)
Title: Method and apparatus for separating material
IPC: B03C1/04
Filed: 1975-12-01
Abstract: 1523319 Magnetic separators MAGNESEP CORP 1 Dec 1975 [9 Dec 1974] 49202/75 Heading B2J A mixture of more and less magnetic materials is separated by feeding the mixture as a slurry into the inlet 45 of a mixing chamber 44 which receives through tube 43 a supply of soft iron spheres 39 which are interspersed with the slurry and fed down an inclined duct 33 having a portion formed by the pole faces of electromagnets 31, 32 which cause the more magnetic materials to adhere to the iron spheres 39 while the less magnetic materials are washed away by water from a pipe 49 and out of outlet 47 and 47' at a portion of the duct 33 which has a perforated floor, where as the more magnetic materials remain with the spheres 39 until they leave the magnetic field, whereupon they are demagnetised and are tumbled to remove the adherent material and returned by a conveyor 41 to the input of the apparatus. The movement of the material is assisted by a driven continuous chain 36 having projections 46. Fig. 7 (not shown) illustrates a modification wherein the spheres and materials are mixed at the lower end of the apparatus and are fed together up to the input of the apparatus.
Patent GB-1529000-A (GB)
Title: Methods of and devices for checking finished cigarettes or like products
IPC: G01N33/00
Filed: 1976-11-25
Abstract: 1529000 Testing cigarettes ARENCO-DECOUFLE 25 Nov 1976 [27 Nov 1975] 49228/76 Heading A2C Cigarettes 5 are tested during manufacture by using them to communicate with a chamber 9 containing pressurized air in a different time period from that in which the chamber is in communication with a source of pressurized air. A transducer 10 detecting the pressure remaining in the chamber and issuing a rejection signal when it falls below a predetermined level. Communication between the cigarette and the chamber is regulated by the slotted flange 14a of a rotating disc 14 while communication with the source of air 27 is regulated by slots in the main body 14b of the disc, the slots in the two parts of the disc being displaced one-half pitch with respect to each other. In a second embodiment (Figs. 7 and 8, not shown) the disc is mounted with its axis parallel to that of the cigarette.
Patent GB-1395034-A (GB)
Title: Semiconductor device having a radiation-energised circuit  element
IPC: H04B10/80
Filed: 1972-03-17
Abstract: 1395034 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 March 1972 [20 March 1971 18 June 1971] 49290/74 Divided out of 1395032 Heading H1K The subject matter of this Specification is identical to that of Specification 1,395,033 but the claims are directed to a photo-transistor in which the emitter-base junction 55 is forwardbiased by the absorption of radiation (e.g. visible or infra-red light), and in which the emitter region 44 comprises a relatively highly resistive zone 48 defining the emitter-base junction 55 and a less resistive zone 47 spaced from the base region 45, at least over most of the area of the junction 55, by the zone 48. This arrangement within the emitter region improves the emitter efficiency.
Patent GB-1214259-A (GB)
Title: Improvements relating to band saws
IPC: B23D61/12
Filed: 1969-10-08
Abstract: 1,214,259. Sawing. EISHIN K.K. 8 Oct., 1969 [17 Oct., 1968], No. 49427/69. Heading B5L. [Also in Division B3] A band saw blade 1 comprises trough portions 2<SP>1</SP> having rounded edges 3 between the teeth 2. The rounded edges are stated as reducing the tendency of the blade to break at the trough portions and may be formed by a tool 4 which is  mounted on a shaft 5 and has radial arms 4a each of which is provided at its end with a tungsten carbide tip 4c formed with a groove 4b The blade is moved past the tool and pressed thereagainst by a weight 6 so that the tips round the edges of the trough portions.