baber/WOPTO huggingface dataset:
Patent GB-1441330-A (GB)
Title: Method of hot pressing powder bodies
IPC: B22F3/12
Filed: 1973-09-20
Abstract: 1441330 Isostatic hot pressing in glass capsules ALLMANNA SVENSKA ELEKTRISKA AB 20 Sept 1973 [16 Nov 1972] 44159/73 Heading C7D A method of isostatic hot pressing in which a powder body or bodies is/are charged into a glass capsule which has a larger internal volume and after evacuating and sealing the capsule is heated to at least its softening temperature and isostatically pressed. The powder may be isostatically pressed and optionally sintered prior to charging into the glass capsule and when several bodies are charged into the capsule they are separated by glass or metal spacers. Alternatively the capsule may be heated and locally pinched during charging in order to separate the bodies. Cutting elements for circular saw blades may be pressed from a mixture of 10-50% vol. diamonds and a bronze containing 91% Cu, 9% Sn and max. 0À3% P or a bronze containing 67% Cu, 31% Ni, 1% Mn, 0À7% Fe. The compacted powder mixture is preferably sintered at 700‹C in H 2  or vacuum prior to packing in a glass capsule which is then evacuated to 10<SP>-3</SP> to 10<SP>-4</SP> torr and hot pressed at 750‹C and up to 550 bor. Gas turbine blades can also be produced by the process.
Patent GB-1260040-A (GB)
Title: Horticultural sprayers with improved pressure relief valves
Inventor: WILSON WILLIAM JOHN
IPC: F16K17/04
Filed: 1969-09-08
Abstract: 1,260,040. Spray producers. TUDOR ACCESSORIES Ltd. 5 Aug., 1970 [8 Sept., 1969], No. 44257/69. Heading A1D. [Also in Divisions F2 and Gl] A horticultural sprayer comprises a liquid container, a pump for pressurising the container with air, and a pressure indicator and relief valve fixed in an opening in the wall 5 of the container, the valve comprising a cylinder 1 and a piston 8 which in response to increasing air pressure in the container is moved against the action of a spring 16 with a projecting stem 12 giving an indication of the magnitude of the pressure. Excess pressure is relieved when the piston reaches a relief opening 19. The pressure in the container can also be relieved manually by pulling a ring 14. The piston 8 and stem 12 are formed of glass filled nylon whilst the cylinder 1 is made of brass. The stem 12 is provided with graduations or coloured bands in order to indicate the magnitude of the pressure.
Patent GB-1347037-A (GB)
Title: Masked oxycarbonylisocyanates
Inventor: HAGEMANN H
IPC: C08K5/29
Filed: 1971-09-23
Abstract: 1347037 Masked oxycarbonyl isocyanates BAYER AG 23 Sept 1971 [3 Oct 1970] 44343/71 Heading C2C [Also in Division C3] Masked oxycarbonyl isocyanates having the general formula R-(O-CO.NHCO.O-Ar) n  wherein R is an n-valent organic radical, Ar is an optionally substituted aryl radical having from 6 to 14 carbon atoms and n is at least 2, is prepared by reacting a compound containing at least two hydroxy groups of the formula R(OH) n  with an aryloxycarbonyl isocyanate of the general formula Ar-O-CO.NCO. The masked oxycarbonyl isocyanates may be reacted with polyhydroxy compounds to form polyaddition products and may be used as crosslinking agents for resins containing free hydroxy groups.
Patent GB-895940-A (GB)
Title: Improvements in or relating to devices for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1958-07-22
Abstract: The subject-matter of this Specification is included in Specification 895,937 but the claims differ.  Specifications 895,938 and 895,939 also are referred to.
Patent GB-921883-A (GB)
Title: Endless conveyor for the transport of goods suspended on hangers
IPC: B65G47/48
Filed: 1961-12-13
Abstract: 921,883. Endless conveyers. DURKOPPWERKE A.G. Dec. 13, 1961 [Feb. 20, 1961], No. 44621/61. Class 78 (1). An endless conveyer delivers garments (not shown) on hangers 4 suspended from pockets 3 on a carrier T to stations preselected by presskeys 7 operating index members 8, 8<SP>1</SP>. A sensing device A, shown inverted in Fig. 4, is provided at each station, the station address being determined by an axially fixed sensing member 14 and two pre-set sensing members 13, 13<SP>1</SP>. All the sensing members may rotate about an axle 12 and each is connected to a locking lever 16, 17, 18 which hold a release arm 20 against a tension spring 21. When a carrier T arrives at the station with the correct address all three sensing members 16, 17, 18 are operated by the index members 8, 8<SP>1</SP>, 9 to release release-arm 20 which moves taker part 27 into the path of movement of the garment hanger which thus slides on to receiver rod 24. After a certain number of articles has been collected end 33 of a locking lever 32 is depressed so that pawl 34 engages a recess 35 in taker part 27 to prevent further discharge at that station. Taker arm 27 is re-set by the action of a roller 5 on arm 28 as the carrier T passes the station. By suitable connecting rods taker arm 27 may be operated from a station to the left or to the right of the conveyer (Figs. 1 and 3, not shown).
Patent GB-1318594-A (GB)
Title: Inflation apparatus for metal strip or panels having inflatable fluid passageways
IPC: B21D53/04
Filed: 1970-09-18
Abstract: 1318594 Making panels with inflated passageways OLIN CORP 18 Sept 1970 [12 Nov 1969] 44659/70 Heading B3A A metal strip or panel 1, Fig. 1C containing at least one inflatable passageway 5, the or each of which has a preformed open end 7, has the passageway inflated in a pressure chamber in which the strip is partially inserted with the chamber sealingly engaging the wall of the or each open end so as to crimp, but not close, the open end. As shown, Fig. 3, a pressure chamber comprises a reciprocable plate 35, in which a cavity 36 is surrounded by a resilient O ring 37, and a fixed plate 30 in which a cavity 32 is surrounded by a resilient O ring 33. Several strips 1 are disposed partly in one cavity 32 so that when the plate 35 has been lowered until the ring 37 sealingly engages the ring 33 the open ends 7 of the passages 5 have been crimped but not closed. A switch 41, 42 controls the travel of the plate 35. Air or water, at a pressure of 100 to 3000 p.s.i., is introduced through a line 39. An alternative apparatus (Fig. 2, not shown), for use with a single strip 1, comprises circular plates, with sealing rings, screwed together to form a pressure chamber, an edge of each plate being shaped to correspond to the contour of the open ends 7. Suitable materials for the strip 1 are aluminium, copper, alloys of either, and steel. The strip is initially formed by applying to a first strip of metal strip material corresponding to the passageways to be formed and pressurewelding a second strip to the first strip by rolling. The ends of the passageways so formed are opened by conventional means such as a vibrating chisel or mandrel.
Patent GB-1068130-A (GB)
Title: Preparation of a block copolymer
IPC: C08F297/04
Filed: 1965-10-26
Abstract: A block copolymer is prepared by polymerizing a monovinyl-substituted aromatic compound to a polymer block A in the presence of an organo monolithium catalyst under adiabatic conditions essentially free of refluxing and in the presence of a solvent comprising a major proportion of a C6- 7 cyclic hydrocarbon, said solvent being essentially free of components having a boiling point lower than that of the said hydrocarbon, thereafter adding a conjugated diene and an amount of C4- 5 open chain alkane or alkene hydrocarbon solvent sufficient to provide enough vapour pressure for reflux cooling and continuing polymerization under reflux to form the intermediate block copolymer A-B1-Li in which B1 is the polymer block of a conjugated diene and adding a difunctional coupling agent whereby the coupled copolymer A-B1-C-B1-A is formed, in which C is the monomeric residue of the coupling agent.  Specified monovinyl aromatic monomers are styrene, vinyl toluene, vinyl xylene, ethyl vinyl xylene and vinyl naphthalene and specified dienes are those having 4 to 8 carbon atoms per molecule e.g. butadiene, isoprene, methyl isoprene and their homologues.  Preferred catalysts are those having 1 to 8 carbon atoms per molecule, branched chain and particularly secondary alkyl substituents being especially preferred e.g. 5-butyl lithium and 5-amyl lithium.  The C6- 7 solvent may be cyclohexane, benzene, toluene or alkylated cyclopentanes. Dihalohydrocarbon coupling agents such as dihaloalkanes e.g. dibromomethane, dibromoethane - 1,2, dibromopropane - 1,2, dibromobutane-1,2 or 2,3, dibromopentane-1,2, dibromohexane-1,2 and the corresponding dichloro or bromochloro alkanes or divinyl aromatic compounds e.g. divinyl benzene may be used, as can coupling agents containing 2 active halogen atoms, each being attached to a carbon atom a - to an activating group such as an ether linkage, carbonyl radical or olefinic linkage e.g. bis (1-bromoethyl)-ether, 2,4-di. bromopentanone-3, and 4,4-dichloroheptene-2. Any uncoupled chains are terminated e.g. by an alcohol such as methanol or propanol. The block copolymers produced may be added to other elastomers, e.g. polyisoprene, or modified with pigments e.g. carbon black and TiO2 and thereafter coagulated, or coagulated in steam and/or hot water to form a gum.  In examples styrene is polymerized in cyclohexane using s-butyl lithium as catalyst and isoprene is then added in a cyclohexane/isopentane or cyclohexane mixed amylenes mixture and polymerized, the copolymer produced being coupled with 1,2-dibromoethane.  In Example VI the isoprene is contaminated with piperylene.
Patent GB-1415490-A (GB)
Title: Rangefinders
IPC: G01C3/10
Filed: 1971-09-29
Abstract: 1415490 Optical distance measurement DEFENCE SECRETARY OF STATE FOR 13 Nov 1972 [29 Sept 1971] 45367/71 Heading H4D A range finder comprises a movable source of E/M radiation, and fixed first and second focussing and directing means so that two discrete beams of radiation derived from said source may be focussed upon, and be made to coincide at, a target object. An indicating means operable by the movement of the source which is required to obtain said coincidence, provides an indication of the distance of the object. The coincidence of the beams at the object may be observed visually, or be indicated by electrical means. As described, a range-finder comprises an enclosure 12, Fig. 1, containing a centrally located lamp 2, symmetrically placed lens systems 4, 6, and symmetrically placed plane mirrors 8, 10. In the initial position of the lamp 2 parallel collimated beams of light 13, 15 are emitted through windows 14, 16, which are provided in the enclosure 12, substantially at right angles to said beams. The lamp 2 is mounted on a rack 3 and, by means of pinion 3b which can be turned by a knob 3a, may be moved from the initial position in the direction of the arrow 18. Such movement causes the beams 13, 15 to converge and meet, substantially in focus, at some finite distance, which is indicated on a scale 3c, outside the enclosure 12, by a pointer 3d attached to the rack 3. In one embodiment (Fig. 3, not shown) a centrally placed window is provided in the range-finder enclosure, beyond the lamp. Reflected light from the object passing through the window is directed by a lens upon a photocell, which gives maximum response when the beams coincide upon said object. The light from the lamp may be "chopped" at a pre-determined frequency, and a filter tuned to that frequency be provided in the photocell circuitry, to reduce interference effects. Instead of visible light, infra-red radiation from, for example, a gallium arsenide lamp, may be used, in conjunction with a silicon diode detector. The range-finder may simply be placed against a wall by abutting flat surfaces 20, 22 of the enclosure 12 thereupon, or it may be mounted on a tripod by means of a bracket 26. In another embodiment (Fig. 2, not shown) a lamp and a photocell are mounted side-by side upon a movable platform inside the enclosure, with an opaque screen between them. One mirror is slightly tilted, and this results in light from the lamp which is reflected back from the object, being focussed upon the photocell. The photocell gives a maximum response when beams from the lamp are both directed towards the target object. The output of the photocell is applied via servo-mechanical means both to move the platform upon which it and the lamp are mounted, and to actuate the focussing system of an associated television camera.
Patent GB-1278239-A (GB)
Title: Machine for binding simultanously the two ends of poles, beams or other elongated blocks of wood
IPC: B27M3/14
Filed: 1970-09-23
Abstract: 1278239 Coiling helices F FASSETTA M BERNARD J BOYER and L TURPIN 23 Sept 1970 [30 Sept 1969] 45389/70 Heading B3E A machine for binding simultaneously the two ends of a beam or railway sleeper 2 with a round wire which is wound around the beam, severed and welded after the beam has been compressed between jaws, such operations being effected by devices located on heads 3, 4 displaceable parallel to the longitudinal axis of the beam on a rollway 6 by hydraulic jacks 10 is characterized in that the beam remains stationary during the bending which is effected by a winder arm 20 rotating around the beam which draws a wire from a reel under tension and the end of the wire is clamped to the beam by a jaw 34 having means for inserting, placing in position and maintaining the wire as well as devices for welding and severing the wire after welding. The beam is supported in a block 12 adjustable on the carriage 9 of the heads 3, 4. Each carriage includes a rotatable tubular shaft 19 carrying the winder arm 20 having support pulleys 21, 22 and a guide 23 for the wire 29 which is fed through the shaft 19 from a reel (not shown). The shaft is rotated by a chain and sprocket drive 27, 28. The beam is clamped in a window 11 in each block by jaws 30, 31 actuated by jacks 32, 33 (Fig. 4); opposite the lower jaw 30 is disposed the jaw 34 which has a trapezoidal section to form an inclined surface 35 on which the wire can slide at the end of the rotation about the beam into a groove 36 in the jaw. The wire is placed in the groove 36 by oscillation of an arm 41 actuated by a jack 43 (Fig. 10, not shown). At the end of the winding operation the block 12 is displaced sideways to effect an overlap of the wire prior to the welding and severing operation. An hydraulically-operated shoe 51 presses the ends 48, 49 of the wire against the beam and a welding torch 54 is actuated to weld the ends together. A cutter 55 obliquely situated on the side of the jaw 34 is actuated by a jack 57 to cut only the portion 48 of the wire and bends the cut end downwardly into the beam to effect an anchorage. A conveyer 5 conveys the bound beam towards a further treatment station, e.g. a slotting station, and feeds another beam into alignment with the shafts 19 for the next operation. The machine can be automatically controlled by a programming device.
Patent GB-1407089-A (GB)
Title: Apparatus for cleaning a collecting rake and method for its  operation
IPC: E02B8/02
Filed: 1972-10-03
Abstract: 1407089 Cleaning bar screens W RODER 3 Oct 1972 [4 Oct 1971] 45539/72 Heading B1D A channel, e.g. a feed inlet of a waste water purification plant, contains a filtering screen 1 formed by a plurality of parallel bars slightly inclined to the vertical. The screen is cleaned by a comb 2 mounted on the downstream side of the screen with its teeth extending through the screen. In its inoperative position the comb is engaged in a recess 6 in the base of the channel. On a cleaning stroke the comb is raised upwardly on its support 3 from bottom to top of the screen and then continues upwards on the support whilst the support itself is moved downstream on sliding support 8 by pneumatic piston 11 to a discharge position 12 where the comb has been turned upside down so that solids fall off. The comb support may be pivotally mounted as an alternative to the illustrated slidable mounting.
Patent GB-1105338-A (GB)
Title: Laminated cylinder head gasket
IPC: F16J15/12
Filed: 1966-10-18
Abstract: 1,105,338. Joint-making packing. FELT PRODUCTS MFG. CO. 18 Oct., 1966 [10 Dec., 1965], No. 46518/66. Heading F2B. A cylinder head gasket 11 for an internal combustion engine comprises two superimposed metal sheets 27 and 28 clamped together in face-to-face contact around the combustion openings 18 by flanges 41 and 42 of a third metal sheet 37, thereby forming: non-cornpressible seals surrounding the combustion openings. The sheet 37 comprises annular sections 38 and bridging sections 39, the inner edges of the sections 38 being bent around the combustion openings 29 and 31 in the sheets 27 and 28 to form the flanges 41 and 42 respectively. A resilient filler 43 of asbestos and rubber is interposed between the sheets 27 and 28 in the areas remote from the combustion openings and the fluid passageway openings 22 in the gasket are defined by portions of the sheet 28 which extend through openings 44 and 34 in the filler 43 and sheet 27 respectively and have flanges 36 abutting the sheet 27.
Patent GB-1529099-A (GB)
Title: Apparatus for supplying powder to casting mould
IPC: B22D11/108
Filed: 1976-11-09
Abstract: 1529099 Pneumatic conveyers NIPPON STEEL CORP 9 Nov 1976 [12 Nov 1975 20 Nov 1975] 46556/76 Heading B8A [Also in Division B3] Powder is supplied to a casting mould 45 from a spray nozzle 41 supplied with powder from a hopper 1 incorporating means 15 for heating the powder and means 21 for supplying gas to fluidize the powder, the hopper and the nozzle being interconnected by a pneumatic conveying pipe 39. As shown, the heating means 15 includes a pipe 19 through which is passed steam. Material from the hopper is fluidized in a chamber 32 and forwarded by a screw, not shown, to a gas nozzle 36 supplying conveying gas. In Fig. 2, a number of hoppers 51-53 are connected to a single mould 45, and valves 61, 67, 68 are provided to direct material back into the respective hopper when discharge from that hopper is no longer required. Arrangements are disclosed whereby blockages in the pipe 39 are cleared by introducing compressed gas to sweep the powder to a filter.
Patent GB-1057070-A (GB)
Title: Electrical resistance devices
Inventor: ANDRE LATOUR
IPC: H01C10/02
Filed: 1963-12-03
Abstract: 1,057,070. Conducting - liquid switches. ETABLISSEMENTS MERLIN & GERIN, SOC. ANON. Dec. 3, 1963 [Dec. 12, 1962], No. 47607/63. Heading H2B. [Also in Division H1] A liquid resistance intended for connection with an isolating switch in parallel with a circuit breaker such that when the breaker opens the resistance presents a low value, the subsequent current surge causing the formation of an insulating film on the resistance electrodes due to the gas bubbles generated whereby the resistance presents a high value enabling the shunt circuit to be opened by the isolating switch, comprises a stack of insulating receptacles 14 forming spaces therebetween containing conducting liquid L, each receptacle having an electrode 15. To prevent arcing between the electrodes baffles 16, 17 may be provided. The liquid L may be sulphuric acid and in order to enhance the gas formation so that the electrodes 15 are insulated by the bubbles for a longer period of time, material may be introduced into the liquid which liberates gases under the action of heat, e.g. colloidal carbon or ammonium sulphate. The stack may be mounted in a gasfilled insulating tube (not shown). In a modification (Fig. 4, not shown) the receptacles 20 are metallic and themselves serve as electrodes at positions opposite openings 23, 24 in lower and upper insulating layers 22, 21. The material of the layers 22, 21 may evolve gas under the action of heat at the openings 23, 24. In another modification (Fig. 5, not shown) the electrodes 15 are in line and the insulating receptacles 14 are separated from one another by porous partitions 25 which are permeable to the conducting liquid L but impermeable to the gas bubbles.
Patent GB-1311537-A (GB)
Title: All carbon composite disc structures
IPC: F16D69/02
Filed: 1970-10-07
Abstract: 1311537 Electroplating onto a carbon fibre composite BENDIX CORP 7 Oct 1970 [8 Oct 1969 17 Nov 1969] 47656/70 Heading C7B [Also in Divisions C1 and F2] In a annular brake disc formed of carbon fibres in a carbonaceous matrix and having protrusions or indentations along one of its peripheries, the region of the disc adjacent that periphery comprises a band of continuous carbon fibres which are so located in the matrix as to follow substantially the contour of that periphery. An aircraft disc brake, Fig. 1, has rotors 13, Fig. 3, constructed as above, splined by member 14 to wheel 11, and stators 15 similarly constructed splined by members 19 to stationary axle 10. Preferably the rotors and stators have frictional elements 17, 18, respectively, in the contacting regions, such elements having a coefficient of friction different from that of the carbon composite. Preferably each disc has, in the splined region, a surface coating of a material having a melting point greater than 1400‹ F or which is a viscous film-forming liquid at 1400‹F, the material being substantially inert in oxygen and substantially impermeable to oxygen. The coating may be nickel, copper, chromium, gold, silver or alloys or inter-metallic compounds of these; or alumina, berylbia, silica, zirconia, boron carbide or other carbides, molybdenum disilicide, or borides or nitrides or mixtures of such materials; or boron or silicon. A series of coatings having progressively-increasing coefficients of expansion from that of the carbon composite from the innermost layer to the outermost maybe used, e.g. molybdenum, then alloys of molybdenum and nickel and finally nickel. The coatings may be applied by electroplating, sputtering, flame spraying or arc-plasma spraying where a non-oxidizing gas such as argon, helium or nitrogen is used to form the plasma stream. The matrix material of the disc may be a carbonaceous material as such, or a material yielding a carbonaceous residue on high temperature pyrolysis such as a phenolic resin containing dispersed particulate carbon or graphite. The fibres may be of graphite. In an example, a segment of a disc was cleaned in trichloroethylene, vacuum-brushed to remove grease and particles, and then mounted as cathode in a bath at pH4, temperature 130‹F, time 15À5 hours and current density 12 amps/sq ft to produce a nickel coating 10 mils thick. In Fig. 4, (not shown), the regions not in the vicinity of the splines include randomly-oriented short carbon-fibre staple in the composite.
Patent GB-978644-A (GB)
Title: Improvements in or relating to nuclear reactor refuelling apparatus
Inventor: GUILD JAMES CARRIE
IPC: G21C19/16
Filed: 1962-12-19
Abstract: 978,644. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 18, 1963 [Dec. 19,1962], No. 48044/62. Drawings to Specification. Heading G6C. In a nuclear reactor refuelling arrangement, the refuelling machine is placed above the stand pipe and coupling is effected by metal seals which are first made molten during the coupling of the machine and standpipe and are then solidified during manipulation of the fuel elements after coupling has been effected. Heating and cooling of the seals is effected by induction coils and cooling pipes respectively and the metal employed in the seal may be aluminium, lead, silver, antimony or zinc. Specifications 903,154 and 955,669 are referred to.
Patent GB-1029346-A (GB)
Title: A coat for dogs
IPC: A01K13/00
Filed: 1964-11-27
Abstract: 1,029,346. Animal clothing. G. GOTSCHI and J. GOTSCHI. Nov. 27, 1964 [Nov. 27, 1963], No. 48258/64. Heading A1M. A coat for a dog comprises an upper part 1 for covering the dog's back and fastened at the front by an articulated hook or clasp 3 to which a band 5 for passing round the belly of the dog is removably secured, the band 5 being secured in position by means of straps 8a, 8b and a further strap 10 being adjustably secured to an edge 1c of the upper part so as to pass across the belly of the dog after the  band 5 has been secured in position.