baber/WOPTO huggingface dataset:
Patent GB-1288028-A (GB)
IPC: F16K3/02
Filed: 1970-10-06
Abstract: 1288028 Valves VSESOJUZNY PROEKTNO TEKHNOLOGICHESKY INSTITUT ENERGETICHESKOGO MASHINOSTROENIA and VENJUKOVSKY AMRATURNY ZAVOD 6 Oct 1970 47411/70 Heading F2V Fluid control valve comprises a valve body 1 containing a stepped sleeve 3 which has a thickwalled portion 3b and a thin-walled portion 3a into which a mineral-ceramic valve seat member 4 is press-fitted. As shown in a lift valve construction, the seat co-operates with a graduating plug 12 also of mineral-ceramic material, which is retained in a valve member 9 by leaf springs 13 and a stem 10. The valve member has a STELLITE (Registered Trade Mark) closure surface 16 which engages a similar seating surface 15 in closed position of the valve, leaving a minimum clearance 17, e.g. of 0À1-0À15 mm. between the plug 12 and the seat member 4. The sleeve is welded to the body at 7 and the end protected from cavitation corrosion by a STELLITE fillet. In an alternative embodiment, the invention is applied to a sliding gate valve, Fig. 3 (not shown).
Patent GB-1288891-A (GB)
IPC: C07D491/22
Filed: 1971-01-07
Abstract: 1288891 Manufacture of reserpilinic acid derivatives NIPPON SHINYAKU CO Ltd and NISSHIN FLOUR MILLING CO Ltd 7 Jan 1971 [9 Jan 1970] 826/71 Heading C2C Dimethylaminoethyl reserpilinate or its hydrochloride are made by an ester interchange using reserpiline and dimethylaminoalcohol in the presence of an alcoholate of an alkali metal.
Patent GB-1295486-A (GB)
IPC: F42B12/80
Filed: 1970-11-30
Abstract: 1295486 A method of improving the wall adhesion of cast explosives WASAGCHEMIE GmbH 30 Nov 1970 [4 Dec 1969] 56778/70 Heading F3A A method for improving the wall adhesion of cast explosives in the shells of grenades, comprises coating the inside surface of the shell with a lacquer or other coating material containing a small quantity of a fusible, brisant explosive which is soluble in organic solvents, whereby, when the explosive melt is poured into the case or shell, the explosive particles present in the coating melt to leave small depressions which become filled by the explosive melt and, in this way, solid explosive bridges extending into the coating are formed on cooling, thus guaranteeing effective wall adhesion. The coating contains 10-20% by weight of explosive. In one example, the inside surface of a grenade shell is first covered with a red oxide primer and then sprayed with a lacquer consisting of the same red oxide primer with 15% by weight TNT added to it. After the second lacquer has dried, the grenade is preheated to the temperature required for casting, and filled with a mixture consisting of 60% hexogen and 40% of TNT. In another example, the inside surface of a shell case is coated with an asphaltic layer containing 17% TNT prior to filling.
Patent GB-1306830-A (GB)
Title: Collapsible tubes
IPC: B65H75/22
Filed: 1970-07-17
Abstract: 1306830 Collapsible tubes PATON CALVERT & CO Ltd 10 Sept 1971 [17 July 1970] 34649/70 Heading B8M [Also in Division F2] A collapsible tube, for use in the winding of glass filaments, is provided with a plurality of score lines or corrugations spaced circumferentially about the tube and extending parallel to the longitudinal axis of the tube, the tube being formed from a plurality of plies of helically wound elongate strips, e.g. kraft paper, adhesively secured together. The tube for glass filament winding is cut from a length of the ply construction, collapsed to a flattened condition and then the score lines or corrugations are applied. In use, the glass filaments with a size applied to them are wound on the tube which is placed over a mandrel. The completed package is withdrawn from the mandrel and placed in an oven to cure the size. The package is then removed from the oven, the tube is collapsed radially along the score lines or corrugations and removed from the package.
Patent GB-1309009-A (GB)
Title: Hydraulic-mechanical mould closing arrangements for processing  machines
IPC: B29C45/67
Filed: 1970-08-03
Abstract: 1309009 Injection moulding; locking mould parts PLAST - UND ELASTVERARBEITUNGSMASCHINEN - KOMBINAT KARLMARX-STADT VEB 3 Aug 1970 37348/70 Heading B5A An injection moulding machine has a fixed mould carrier plate 1 and a movable mould carrier plate 2 each carrying a mould part 22 with a stationary plate 3, plate 2 being mounted on guide bars 4, means, e.g. cylinders 32 to open and close the mould and further means, e.g. cylinders 13, 15 to produce small and final opening and closing forces respectively, there also being mould locking means and means to set and vary the spacing of plates 1, 2 for use with different size mould halves. Cylinders 32, the piston rods 30 of which are mounted on movable plate 2, effect the main opening and closing movements. For final closure, pistion 6 in cylinder 5 transmits closing forces through bar 4 to plate 2 via adjusting nut 18 and sleeve 21, the locking ring members 19 being retracted. Initial opening movement is provided by piston 17 of cylinder 13 actuating bar 4 and the force is thence transmitted by nut 23, sleeve 25, casing 20 and sleeve 21 to the mould carrier plate 2. Mould setting adjustment is effected by drive 26 to adjustment means 24.
Patent GB-1313086-A (GB)
Title: Styrene-butadiene graft polymers processes for their preparation and mixtures thereof with polyvinylchloride
IPC: C08L27/06
Filed: 1971-09-10
Abstract: 1313086 Graft polymers JAPAN SYNTHETIC RUBBER CO Ltd 10 Sept 1971 42251/71 Heading C3G A graft polymer comprising from 30 to 60% by weight of styrene-butadiene copolymer having grafted thereon from 70 to 40% of graft monomers comprising from 30 to 70% of methyl methacrylate, from 70 to 30% of styrene and from 0 to 20% of acrylonitrile, the styrenebutadiene copolymer containing less than 50% of styrene and more than 80% of copolymer particles having a particle size smaller than 0À15 micron, is prepared by a process in which from 15 to 85% of the methyl methacrylate and 0 to 100% of the acrylonitrile is first mixed with styrene-butadiene copolymer latex, this mixture is agitated for 0À5 to 7 hours at 60 to 95 C. and then the remainder of the methyl methacrylate, the styrene and the acrylonitrile are added continuously over a period of more than 2 hours, in the presence of a polymerization initiator and reaction is continued until polymerization is completed. The graft polymers are mixed with vinyl chloride resin.
Patent GB-1315669-A (GB)
Title: Multistage isomerization process with inter-stage cooling
IPC: C07C5/27
Filed: 1970-07-08
Abstract: 1315669 Isomerization GUL RESEARCH & DEVELOPMENT CO 8 July 1970 33038/70 Heading C5E Cyclic or acyclic paraffins are catalytically isomerized in a plurality of substantially adiabatic reaction zones, the residence time in the first zone being not more than half of the total residence time, and the temperature of the effluent from the first zone being reduced prior to entry to the next zone so as to control the temperature rise across said next zone such that the outlet temperature from said zone is between 14‹ C. above and 28‹ C. below the outlet temperature of the first zone. Suitable catalysts comprise a variety of forms of alumina, optionally containing up to 45% of silica, beryllia, titania, zirconia or boria, and optionally composited with a hydrogenating metal, e.g. Pt, Pd, Rh, Ni, or W. Hydrogen may be present. In Specific Examples 2-4 there are three reaction zones, the outlet temperatures of which have the following relationships: (Example 2) all three the same; (Example 3) first two the same, the third 9‹ C. lower; and (Example 4) the second is 8‹ C. below the first, and the third 9‹ C. below the second. The feedstocks for the above process may be pretreated to remove impurities by passage through a molecular sieve, and preferably by the multiple adsorption treatment of Specification 1,311,554.
Patent GB-1318877-A (GB)
Title: Film strip apparatus
IPC: G06K17/00
Filed: 1969-09-04
Abstract: 1318877 Film-strip apparatus PLESSEY CO Ltd 18 Aug 1970 [4 Sept 1969] 43882/69 Heading G2A [Also in Division G4] In a film-strip apparatus, frames on an endless strip are randomly retrieved by counting the electrical pulses provided by a photo-cell as opaque marks corresponding to each frame interrupt a light beam incident on the cell, film transport being halted when the count reaches a pre-selected value. The pulses are fed to a frame and a group counter in cascade providing a binary output which is applied to two comparators to which reference signals are applied from frame and group shift registers. The comparators control the film transport and give a slow advance as the count approaches the selected value. The number of count states corresponds to the number of frames, and the band has a mark providing a re-set pulse for the counters once in a full revolution of the band.
Patent GB-1320956-A (GB)
Title: Prosthetic joints
IPC: A61F2/42
Filed: 1970-10-09
Abstract: 1320956 Prosthetic joint ST PETER'S RESEARCH Ltd 8 Oct 1971 [9 Oct 1970] 48206/ 70 Heading ASR  A prosthetic joint comprises two relatively rigid intramedullary arms 12, hingeing means for interconnecting the arms, and a relatively resilient and deformable capusle 11 within which the means is disposed and outwardly from which the arms extend whereby the means is protected from in-growing body tissue. Openings 13 are provided in the capsule and surrounded by thick-walled extensions 14 of the capsule 11 and which are aligned at an obtuce angle to one another and provide buttresses for the cut bone-ends when the joint is fitted. The two outwardly-tapering arms 12 are of a one-piece construction and are interconnected by a flexible web 15 of reduce thickness which can flex about a central line 15'. The arms 12, which are formed of polypropylene, can be inserted into the capsule 11, formed of a silicone polymer, by the introduction of the one-piece construction (Fig. 2, not shown), through one of the openings 13, the capsule deforming to permit passage of the construction. Each arm 12 is formed with a portion (16) of reduced width with which the walls of the extensions 14 mate to locate the arms with respect to the capsule. Two small holes 17 are provided to allow the passage of body fluids but not the ingrowth of fibrous tissue which could adversely affect the flexible web. In an alternative embodiment, the capsule contains human body fluid or an artificial liquid or gel. In the embodiment of Fig. 3 (not shown), the inner ends of the arms 12 are formed with abutment portions (12') which are connected by an integral portion 15, the opposing surfaces of portions (12') restricting movement in directions other than those causing the portions to part. The joint may be used for a human finger, knee, elbow, or digits of the foot, and the capsule is preferably of dimethylpolysiloxane.
Patent GB-1323193-A (GB)
IPC: H01H85/38
Filed: 1971-02-24
Abstract: 1323193 Gas blast circuit breakers S & C ELECTRIC CO 24 Feb 1971 5315/71 Heading H1N [Also in Division H2]  A drop-out fuse, provided with a material for releasing arc-extinguishing gas, has means for limiting the rate of increase in arc length so that, if the fuse blows immediately after a current zero, there is not an excessive production of gas before the next zero and thus danger of rupturing the housing is avoided.  The fusible element 43, Fig. 3a, extends between a fixed terminal 39 and a rod 46, which is normally biased upwards by a spring 57, Fig. 3b, so that when the element 43 fuses, the rod is moved rapidly upwards, drawing the arc through a bore 47 formed in cakes 48 of arc-extinguishing material, such as boric acid. The upper end of the rod 46 carries a tapered plug member 86 and this strikes a latch release member 73, Fig. 3c, which withdraws a locating latch 65 from engagement with the main body 17. Further movement of the rod then causes the tapered plug 86 to engage firmly in the central aperture 84 in a metal ring 81, attached to a damping mass 62, so that the rod 46 and mass 62 move forward together at a reduced speed. At the upper end of its movement the member 62 strikes the end closure of a spring-loaded cover sleeve 32 and the consequent upward movement of an attached flange 31 disengages a latch holding the fuse assembly in its mounting, see Fig. 7 (not shown), so that the fuse swings clear. The latch in the damping member 62 is provided to prevent undesirable movement of this relatively heavy mass during transit and handling. Figs. 8, 9 and 10 (not shown), show a form of pivoted latch which may be used instead of the sliding latch 65 in Fig. 3c.
Patent GB-1325858-A (GB)
Title: Mould structures for producing sweets
IPC: A23G3/02
Filed: 1971-07-22
Abstract: 1325858 Chocolate mould NOEL Y COMPANIA LIMITADA SOCIEDAD ANONIMA ARGENTINA DE DULCES Y CONSERVAS 22 July 1971 34414/71 Heading B5A A mould for sweets such as foamed core chocolates comprises a plate portion 101 having zones defining moulding cavities 102 and a frame 109 the lower edge of which projects below the cavity zones, and having corner reinforcing elements 112 (Fig. 2, inverted mould) the lower ends of which lie flush with the frame edge, parallel runners 116 also being provided on the underside spaced inwardly of the frame and projecting below the lower edge thereof so that, when in the normal position the mould can readily slide on a runway. The runners 116<SP>1</SP> are preferably leather strips and are held between support members 115 and riveted in position. Stiffenning ribs 113, 113<SP>1</SP> and 114 may also be provided to give impact resistance to the structure. The mould is intended to be carried to a series of stations by conveyer chains and slide runways.
Patent GB-1329977-A (GB)
Title: Electron optical image tubes and image tube streak cameras
IPC: H01J31/50
Filed: 1970-06-26
Abstract: 1329977 Ramp generators D J BRADLEY 22 June 1971 [26 June 1970] 31167/70 Headings H3P and H4T [Also in Division H1] An electronic timer circuit, Fig. 2, includes transistor BSX61 receiving input pulses and operating in avalanche mode, its emitter output being connected inductively to a krytron tube KN22, output pulses being obtained by shorting the 50 pF capacitor across an inductance.
Patent GB-1330458-A (GB)
Title: Making light weight concrete
IPC: B28B1/50
Filed: 1971-02-16
Abstract: 1330458 Moulding lightweight concrete C W B URMSTON 15 Feb 1972 [16 Feb 1971] 4781/71 Heading B5A [Also in Division C1] A lightweight concrete block is made by mixing cement, aggregate, water and an aerating material, partially filling a mould after partial aeration and leaving for complete aeration, removing the block from the mould and inserting in an autoclave. As described, water at (35-75)‹ C. is mixed with atomized aluminium powder, sodium carbonate, sodium stearat and ferricoxide. The water mixture is added to the cement and fine aggregate, and after 1 minute of aeration, coarse lightweight aggregate is added. After mixing, the mixture is poured into an open mould (or pumped into a closed mould) having a top of plates of perforated wood, metal or plastics provided with filter paper. As aeration continues, gas and water leave the mould through the top and other perforated mould parts, the cement expansion causing pressure to be applied by the mould walls. The finished block is autoclaved using high pressure steam, and sawn into panels. The mould surface is patterned, and steel reinforcements included. The aggregate comprises fly ash, sintered fly ash pellets, sintered fuel ash, fine sand, or clay pellets. Examples are described. Specifications 648,280, 1,040,442 and 1,090,261 are referred to.
Patent GB-1333852-A (GB)
Title: Helicopters
IPC: B64C27/54
Filed: 1972-01-20
Abstract: 1333852 Hinge WESTLAND AIRCRAFT Ltd 20 Jan 1972 [5 Feb 1971] 4011/70 Heading E2F [Also in Division B7] A hinge 19 of a helicopter rotor blade comprises: a leading portion 21 and a trailing portion 22 both secured to a flange 27 which is fixed to the inboard section 25 of a blade; and a central portion 23 rotatable relative to the leading and trailing portions, driven by an electric motor 37 through gears 38, and secured to a flange 28 fixed to the outboard section of the blade through an integral flange 31 of the central portion 23. When the blade is extended, an arm 35, Fig. 5, of the central portion 23 enters a recess formed in the flange 24 to mate therewith. A blade lock actuator 35 has a ram 36 which then enters holes in the arms 35 and flange 24 to lock the blade. An integral automatic locking arrangement, may be incorporated instead.
Patent GB-1336571-A (GB)
Title: Change-speed epicyclic gearing
IPC: F16H61/02
Filed: 1970-01-21
Abstract: 1336571 Variable speed epicyclic gears; one-way-acting brakes GKN TRANSMISSIONS Ltd 14 Jan 1971 [21 Jan 1970] 2958/70 Headings F2D and F2E A sun-ring epicyclic gear train 20 has its sun brakable by a one-way brake 30 and a lock-up brake 33 for an epicyclic ratio and clutchable by a one-way clutch 31 and a lock-up clutch 47 for direct drive, the brake 33 and clutch 47 being selectively operable and arranged so that when direct drive is selected, the one-way brake 30 is rendered inoperative. This train may provide an auxiliary overdrive to a main gear-box, so controlled that when the main gear-box is in reverse, the train 20 is in direct drive. The brake 33 and clutch 47 may be actuated by a splined member 45 movable by a fork (46, Fig. 3 (not shown), resiliently connected to a member (49) spring biased to engage the clutch 47, and movable by fluid pressure to engage the brake 33. The one-way brake 30 and clutch 31 may both have spring biased rollers 35 jammable in tapered recesses 38. The brake 30 may be rendered inoperative by a cam 44 axially movable with the member (49), to engage and rotate a cage 40 comprising pins 42 able to move the rollers 35 against their spring bias out of a jamming position. Interconnection with engine controls.-To unload the gearing during a ratio change, the member (49) may be connected to cut the ignition or operate the throttle, to slow down or accelerate the sun gear for the selected ratio.
Patent GB-1339287-A (GB)
Title: Apparatus for the combustion of solid fuels
IPC: F23C10/18
Filed: 1971-01-05
Abstract: 1339287 Fluidized bed combustion apparatus COAL INDUSTRY (PATENTS) Ltd 3 Dec 1971 [5 Jan 1971] 489/71 Heading F4B Combustion apparatus comprises a fluidized bed supported on a hearth within a casing 1, a partition 12 arranged so as to divide the casing into two compartments, nozzles 8 for delivering fluidizing air in one direction in one compartment and in the opposite direction in the other compartment, and additional nozzles 17 atat least one end of each compartment and directed so as to cause material to flow from one compartment to the other. Each nozzle 8 and 17 comprises a tube with one closed end and a radial bore near the closed end, and is releasably secured in bores in the hearth. The nozzles 8 are directed to deliver air in the direction A in one compartment and in the direction B in the second compartment, and the nozzles 17 at the end of each compartment discharge in the directions C, D, so that the material is circulated in the bed around the partition to promote efficient combustion.
Patent GB-1339671-A (GB)
Title: Electron multipliers image intensifiers and the like
IPC: C03B37/027
Filed: 1971-09-30
Abstract: 1339671 Manufacture of polygonal crosssection glass fibres for channel plates MULLARD Ltd 30 Sept 1971 [29 Jan 1971] 3478/71 Heading C1M A method of manufacturing channel plates includes the steps of (a) making flat strips of glass with parallel longitudinal edges, (b) assembling a number of strips to form an assembly of polygonal cross-section; (c) drawing the assembly to form glass fibres of polygonal cross-section and (d) forming a block of parallel lengths of such fibres and slicing the block. The flat strips may be of two or more kinds of glass and they may be fused together to form composite strips before assembly step (b). A central supporting core of etchable glass may be provided in the assembly, which is finally etched out, and the core may also be in the form of strips to facilitate etching. As shown, from a number of variations, in Fig. 3, a matrix glass 1 and core glass 2 are formed into strips and fused together, the edges 3 angled as shown and three composite strips drawn down to form a triangular glass fibre. In Fig. 9, matrix glass strips 10 and core glass strips 20B are assembled to form a square cross-section. Multifibres are shown in Fig. 13; opposite pairs of strips are of one kind of glass and the other pair of a second kind of glass, the assembly as a multifibre making easier the formation of a block with the fibres correctly orientated. In a modification, the core glass can be replaced by a metal or alloy such as Si 10-17% Al 90-88%. The matrix glass may be, e.g., a lead containing glass which is subjected to surface reduction to reduce part of the lead oxide to lead to provide electrical conductivity. Coatings of other glasses or materials may be provided as by spraying or dipping in a binder containing particles thereof. Specifications 1,333,099 and co-pending 37913/71 are referred to.
Patent GB-1345739-A (GB)
Title: Treatment of industria effluent water
IPC: C02F1/52
Filed: 1972-07-07
Abstract: 1345739 Reducing the chromium content of effluents FOSPUR Ltd 7 July 1972 [7 July 1971] 31976/71 Heading C1C A method of treating a hexavalent chromiumcontaining industrial effluent to reduce the chromium content thereof comprises contacting the effluent with a source of divalent iron and separating the resultant sludge. The sludge contains trivalent iron and chromium hydroxide. The contacting may occur at a pH of 3-6 and at elevated temperature. The effluent may be contacted with an iron dust-containing effluent from the scrubber of a steel converter or may be used in the scrubbing process.
Patent GB-1346411-A (GB)
Title: Method and apparatus for drawing water from a variable pressure  source and feeding it at substantially constant pressure to a  cement gun
IPC: G05D27/00
Filed: 1970-01-20
Abstract: 1346411 Water supplies CEMENT-GUN CO Ltd 19 April 1971 [20 Jan 1970] 2638/70 Heading E1X [Also in Division F1] A water supply system for drawing water from a variable pressure source 20 and supplying at 21 the water at a substantially constant pressure to a cement gun, has adjacent the supply point a tank 10 into which water from the source 20 is so discharged that the surface of the water in the tank is maintained at a substantially constant level and is subjected to a substantially constant gaseous pressure prior to being supplied to the point 21 at a substantially constant pressure by a pump 13 disposed between the tank and the source and driven at a constant speed. Preferably the tank 10, which is open to the atmosphere, the pump 13, a preferably air driven motor 14 for driving the pump, the valves of the system and a control panel for said system are mounted on a wheeled carriage. The source 20 can, when it is so desired, be connected directly to the supply point 21 via pipe 27 and valve 33.