baber/WOPTO huggingface dataset:
Patent GB-774372-A (GB)
Title: Improvements in or relating to aircraft
Inventor: ANTHONY ALASTAIR
IPC: F42B15/36
Filed: 1952-02-25
Abstract: 774,372. Aircraft booster rockets. MINISTER OF SUPPLY. Feb. 25, 1953 [Feb. 25, 1952], No. 4925/52. Class 4. [Also in Group XXI] A jettisonable boost propulsion apparatus for an aircraft comprises a plurality of booster elements disposed around the body of the aircraft each having at longitudinally spaced regions of the body a forward and a rearward attachment to the body, the forward attachment comprising a longitudinal spigot and socket connection between the booster element and body freely disengageable by rearward movement of the element relatively to the body, and the rearward attachment comprising a pivotal connection between the booster element and body affording freedom for limited rearward sliding movement of the element relatively to the body to disengage the longitudinal spigot and socket connection of the forward attachment and thereafter freedom for pivotting movement of the element relatively to the body about an axis transverse thereto, there being provided between each adjacent pair of booster elements forward of their rearward attachments coacting connecting members which slidably disengage during the pivotting movement of the booster elements. Fig. 3 shows one form of forward attachment in which the mounting pedestals 6 of the boost rockets are provided with dowels 15 which fit into sockets 16 on forward stops 12 attached to the aircraft body. Adjacent pedestals are coupled together by dowels 10 and sockets 11 so that the boost rockets all move rearward together when their thrust is exceeded by their drag, and they then start pivotting together about their rear attachments. The rear attachment, Fig. 4, comprises a pair of feet 17 attached to the rocket and pivotted to a saddle 18 by a hinge pin 19 which can move rearward in a slot 20 when the rockets move rearward. The saddle 18 is attached to the aircraft by fracturable bolts 20 so that when the sockets pivot, toes provided on the feet 17 contact the saddle 18 and check further pivotting motion so that the bolts 20 fracture and release both the rockets and the saddles from the aircraft. The rockets may be provided with vanes 37 having a small positive angle of incidence in the normal position, the vanes serving to lift the rear end of the rocket clear of the aircraft when it pivots. In another form of forward attachment shown in section and plan in Figs. 8 and 10, the pedestal 6 is provided with a hook 28 engaging the forward stop 12 and the hook is prevented from disengaging by release pins 33. When each rocket ceases to deliver effective thrust its release pin slides rearward, but the hook 28 cannot disengage until both release pins of a pair slide rearward, so that none of the rockets can be released until all have ceased to deliver effective thrust.
Patent GB-568411-A (GB)
Title: Improvements in electronic valves
IPC: H01J19/46
Filed: 1943-03-29
Abstract: 568,411. Thermionic valves. ERBER, B. March 29, 1943, No. 5053. [Class 39 (i)] The electrodes of a thermionic valve as described in Specification 568,437, are assembled on a jig comprising a table 2, Fig. 3, on which are mounted blocks 3 to which are detachably attached two combs 11. The combs are interchangeable to accommodate different types of valves, and the electrodes are held in their final position by spacers consisting of hinged mica plates which grip the electrode supports by their edges only and are incorporated permanently in the valve structure. During the assembly, one of the mica plates is held against a comb by a spring grip 4, Fig. 2, and a camplate 5. The blocks 3 may be made of copper so as to function as an electric welding electrode when the valve assembly comprises grids made in two parts. Specification 556,305 is referred to in the Provisional Specification.
Patent GB-271786-A (GB)
Title: Washing-basin
IPC: A47K1/04
Filed: 1927-02-23
Abstract: 271,786. Krasselt, R. O. Oct. 6, 1926, [Convention date]. Lavatory basins.- An eccentrically pivoted basin a, Figs. 1 and 5, is adapted to operate a counter p when it moves from the vertical to the horizontal position or vice versa, and to be locked in both positions. The locking means comprises a bolt k adapted to engage apertures i, i<1>, the bolt k being a lock bolt or connected to a lock bolt by a lever r.
Patent GB-753148-A (GB)
Title: Improvements in methods for the separation of proteins
IPC: A23J1/06
Filed: 1954-02-23
Abstract: Proteins are precipitated from solutions containing proteinaceous materials which may be animal or vegetable liquids, e.g. blood plasma, milk, liver or corn extracts, industrial wastes, by addition of sodium tetrametaphosphate, before, simultaneously with, or after the lowering of the pH of the solution.  As applied to the treatment of blood plasma, e.g. fresh or out-dated plasma which may be frozen, contaminated or uncontaminated with haemoglobin, or dried, the pH is lowered, e.g. by addition of citric, ascorbic, lactic, acetic, nitric or hydrochloric acids or sodium bisulphate, in the presence of 1 gram sodium tetrametaphosphate per 100 c.c. plasma, to precipitate successive fractions each of which is separated from the system before the pH is lowered to the next level, e.g. fibrinogen is precipitated at pH 5, fibrinogen and a - and b -globulins at pH approximately 4.4, albumin at pH 3.5 to 4.2, the resulting supernatant being treated, to recover gamma globulin, with alcohol, by dialysis, freezing or drying.  The precipitated fractions may be redissolved, e.g. in water, for clinical use by adjusting the pH to above the iso-electric point, e.g. by addition of sodium, potassium, or ammonium hydroxide, or disodium hydrogen phosphate.ALSO:Proteins, which may be redissolved for clinical use, are precipitated from solutions containing proteinaceous materials e.g. blood plasma, milk, liver or corn extracts, industrial wastes, by addition of sodium tetrametaphosphate, before, simultaneously with, or after the lowering of the pH of the solution.  As applied to the treatment of blood plasma e.g. fresh or outdated plasma which may be dried, frozen, or contaminated or uncontaminated with haemoglobin, the pH is lowered e.g. by addition of citric, ascorbic, lactic, acetic, nitric or hydrochloric acids, or sodium bisulphate, in the presence of one gram sodium tetrametaphosphate per 100 cc. plasma, to stepwise precipitate successive fractions each of which is separated from the system before the pH is lowered to the next level e.g. fibrinogen is precipitated at pH 5, fibrinogen and a - and b -globulins at pH approximately 4,4, albumin at pH 3,5 to 4,2, the resulting supernatent being treated, to recover gamma globulin, with alcohol, by dialysis, freezing or drying.  The fractions may be redissolved e.g. in water, for clinical use, by adjusting the pH to above the iso-electric point e.g. by addition of sodium, potassium or ammonium hydroxide, or disodium hydrogen phosphate.
Patent GB-161398-A (GB)
Title: Improvements in or relating to rotary knitting frames
IPC: D04B11/22
Filed: 1920-02-21
Abstract: 161,398. Girling, C., Smith, J. H., and Reffin, W., (trading as Haines & Co., J.), and Kirk, E. Feb. 21, 1920. Sraight-bar machines; knit. ted fabric.-To allow openwork patterns to be made in rotary frames by the transfer points of the narrowing tackle at points between the selvedges, the ordinary stops which determine, the traverse of the carrier rods are replaced by non-traversing stops 12 which screw in brackets 10 carried by a stationary part 11 of the frame. The bars 3, 4 carrying the transfer points 5, 6, 5<a>, 6<a> can then be moved by the screw mechanism 2 to the position where the openwork pattern is to be produced without affecting the thread layer, which makes a full stroke at each course as determined by the stops 12. The points 5<a>, 6<a> are mounted on slides 16, 17 which are held in position by spring detents 18. In making a diamond pattern composed of a border of double open stitches, the point 5 is first put in action to make the hole a, then the points 5, 6 are caused to make the holes b, c, and lastly the points 5<a>, 6<a> are lowered into action by hand or mechanically to continue the pattern.
Patent GB-371993-A (GB)
Title: Improvements relating to the manufacture of metal tubes, hollow metal bars or the like
IPC: B21K5/06
Filed: 1931-02-19
Abstract: 371,993. Making hollow bars. NORDENFELT, L., Fagersta, Sweden. Feb. 19, 1931, No. 5299. [Class 83 (iv).] Cores.-Metal tubes, hollow bars, &c. such as hollow drill steel are made by rolling, forging or drawing hollow billets on a core of a steel or ferrous alloy which when stretched after rolling &c. elongates substantially uniformly along its length and which has a coefficient of heat expansion greater than that of the billet, certain cores of such type being excepted. A billet having a coefficient of expansion of 11 X 10<-6> may be rolled on a core consisting of steel containing about 12 per cent of manganese, 7 per cent of nickel and 0.5 per cent of carbon, having a coefficient of expansion of 17 Î 10<-6>. Another suitable core contains 13À6 per cent of manganese and 0À95 per cent of carbon. After rolling, the core is subjected to tension where-upon it may be drawn out. Cores of the above type which are excepted contain either 16 per cent of chromium, 12 per cent of nickel and 0À1 per cent of carbon, or 0.1 to 0À5 per cent of carbon, 20 to 22 per cent of chromium and 7 to 9 per cent of nickel, or 0À4 to 0À7 per cent of carbon, 3 to 5 per cent of chromium, 7 to 10 per cent of nickel and 5 to 10 per cent of manganese, or 1 to 1À5 per cent of carbon, and 11 to 14 per cent of manganese, or up to 1 per cent of carbon and 17 to 35 per cent of manganese.
Patent GB-345437-A (GB)
Title: Improvements relating to the provision of insulating coatings on aluminium and aluminium alloys
IPC: C23C22/66
Filed: 1930-02-17
Abstract: An insulating coating is formed on aluminium or a high percentage aluminium alloy by immersing the metal in a hot, preferably boiling, aqueous solution or suspension containing barium oxide and a salt of barium, strontium, or calcium or a mixture of such salts.  The properties of the treated surface may be improved by the application of oil or varnish and treated aluminium foil may be used in the construction of condensers, as an insulating medium between the coils of electromagnets, or may be written upon or marked for use as a dial for recording instruments &c.
Patent GB-787611-A (GB)
Title: Improvements relating to windscreen wipers
IPC: B60S1/20
Filed: 1956-02-21
Abstract: 787,611. Windscreen cleaners. GENERAL MOTORS CORPORATION. Feb. 21, 1956 [March 4, 1955], No. 5328/56. Class 138(1). A windscreen wiper comprises a wiper arm, e.g. 18, Fig. 1, a rotatable shaft 22 arranged to drive the arm 18, a pulley assembly 30 secured on the shaft 22, a pair of drive cables 34, 36 extending between the assembly 30 and a motor 42 and a deformable coiled compression spring 62 adapted to exert a substantially constant pressure over a wide range of deformation, arranged so that an end, e.g. 64, of the spring 62 connected to the cable 34 and movable therewith deflects and tensions the cable 34. The wiper motor 42, Fig. 1, drives a shaft 40 carrying driving pulleys 38, 48 connected by cable pairs 34, 36 and 44, 46 respectively to pulley assemblies 30, 32 on wiper shafts 22, 24 respectively. Each pulley assembly 30, 32 has a pair of grooves each groove receiving one cable end which is secured thereto in the manner described with reference to Fig. 6 (not shown). The other end 66 of the spring 62 is connected to the cable 36 so that the cables 34, 36 are urged apart. The ends 64, 66 of another spring 62 are connected to the crossed cables 44, 46. The end 66 of the spring may be connected to a fixed member, e.g., a bulkhead 12 instead of as shown. In another form the end 66 may be connected with a support member connected to the other cable, so that the cables are urged together. In the embodiment of Fig. 5, the cable 36 is divided and the adjacent ends passed through a guide member 70, each end having attached thereto a ferrule 72. The ends 64, 66 of the spring 62 engage the ferrules to urge the cable end apart. Alternatively each cable may have its own spring.
Patent GB-904470-A (GB)
Title: Improvements in or relating to cases for containers
Inventor: HUMPHREY LESLIE FRANK
IPC: B65D5/50
Filed: 1960-02-15
Abstract: 904,470. Cartons. REED & CO. Ltd., ALBERT E. Feb. 8, 1961 [Feb. 15, 1960], No. 5338/60. Class 18. A case for a thin walled polyethylene container holding, for example, five gallons comprises the carton shown in Fig. 9 (in the pouring condition) and a liner 25, Fig. 2, therefor, as shown in Fig. 2. The portion 18 of the front wall 10 lies against an inclined wall of the container and portions 21, 22 are bent forward about the fold line 42 to form a square corner to the case which facilitates stacking. The blank for the carton is shown in Fig. 6 and has handholds 13 in two sides and a handhold 14 in the base for use during pouring. In another embodiment, a handhole is provided in the portion 21. A cutout 27 accommodates the spout 5 of the container. An opening 34 in portion 22 facilitates unfolding of the square comer to the pouring position shown in Fig. 9. Tabs 39 on side flaps 24 reinforce the front of the carton adjacent the fold line 19; in a modification these tabs are not provided. The carton is secured for transit by adhesive tape. The liner which may be of corrugated board, comprises main wall portions and a flap 29 which lies against the inclined wall 2 of the container and locates around the spout and stopper 6. Triangular tabs 28 are inserted between the walls of the liner and the inner walls of the carton.
Patent GB-1511623-A (GB)
Title: Device for the continuous filtration under pressure of solid materials contained in liquids
IPC: B01D33/04
Filed: 1976-02-11
Abstract: 1511623 Moving belt filter SOC ANON DES FONDERIES ET ATELIERS L CHOQUENET 11 Feb 1967 [12 Feb 1975] 05383/76 Heading BID A filter comprises an endless impervious belt 12 having cavities 13 on one side and entrained round part of the periphery of a rotating drum, which has internal passages which deliver liquid to be filtered into each cavity under pressure, the cavities being lined with filter cloth 14 overlying arrays of ribs which permit filtrate to drain from each cavity by a respective pipe (50) into a filtrate receiving channel (52) at one end of the drum (Fig. 2 not shown). As shown the cloth comprises a second endless band entrained round rollers 21, 22, 25. Filter cake is removed from the drum periphery by a scraper 42 and from the cloth band 14 by virtue of its springing out of the cavities 13 where they leave the drum and belt 12 passes round roller 15. Cloth band 14 is further cleaned by scraper 45 and wash nozzles 46, wash liquid from bath 48 being recycled to re-enter the filter mixed with the liquid to be filtered. Belt 12 is shown as a continuous and flexible member but could alternatively comprise individual trays of chevron outline (Figs. 3-5 not shown) linked by side chains, which run round sprockets coaxial with rollers 15, 16, 17, 17a and with the drum. Such chains may also be attached to a flexible belt as illustrated. In either case the cavities have upstanding rims which make seals with the smooth periphery of the drum. The radial passages shown by which liquid, enters the cavities via openings in the drum periphery are closed and opened, depending on their position round the drum, by individual valves 39 actuated by pneumatic rams which are fed through valves 38, each of which has a control rod actuated by engaging a fixed cam 41. This arrangement may be replaced by a single rotary valve as used in rotary drum vacuum filters. The belt 12 and band 14 are pressed against the drum periphery by rollers 11 secured to an arcuate flexible steel collar 7 which encircles the drum and is fixed at end 8 while a ram 10 pulls its other end downwards. The pressure may be increased by an inflatable jacket 6 encircling the collar. The drum is rotated by a motor (54) via variable speed gears, and the belt 12 may also be driven by the same motor through another gear train. If belt 12 comprises separate trays, each tray could have a separate lining of filter cloth in place of band 14, and trays could carry rollers in place of fixed rollers 11.
Patent GB-749332-A (GB)
Title: Improvements in polymerization of cyclic amides
IPC: C08G69/24
Filed: 1954-02-24
Abstract: Pyrrolidone is polymerized at a temperature below 75 DEG  C., preferably 20-65 DEG  C., using a polymerization catalyst as described in Specification 731,294, and if desired an acyl compound as activator.  In a number of examples pyrrolidone is mixed with up to about 2 mol. per cent potassium hydroxide and the resulting water distilled off.  The pyrrolidone is then polymerized at various temperatures for times of up to seven days. In Example XII benzoyl chloride is used as activator, in Example XIII adipyl pyrrolidone and in Example XIV maleic anhydride. Other activators referred to are acetic anhydride, acetyl pyrrolidone and stearyl pyrrolidone.
Patent GB-1418063-A (GB)
Title: Electric lampholders incorporating switch actions
IPC: H01R33/955
Filed: 1973-02-03
Abstract: 1418063 Mechanical switches R T G NEIL 29 April 1974 [3 Feb 1973] 5474/73 Heading H1N [Also in Division H2] A switched connector for inclusion in a lampholder includes a switch-member comprising a bar 2 of insulating material slidable between an ON position and an OFF position and having at least one ridge or protrusion 5 on one face thereof the ridge or protrusion being pressed against a flat-surfaced electrical contact 4 and at least one notch or dimple 6a on the opposite face of the bar into which notch or dimple a sprung part-spherical electrical contact 3 engages in the ON position, the bar carrying an electrically conductive member 8 to join electrically the part-spherical contact to the flat-surfaced contact in the ON position. Thus the ridge does not leave the contact surface and the bar is held away from the contact surface. In the embodiment, the bar 2 slides in an insulating housing 1 and notches 6b are provided for the sphere 3 in the OFF position. The plungers 9 of the lamp-holder are connected electrically to the spheres 3 by the springs. The members 8 may be tapered, spherical or semi-spherical and fit loosely in the bar 2. The invention may be applied to Edison screw lamp-holders. The switch may be enclosed by brass.
Patent GB-453561-A (GB)
Title: Improvements in and relating to household baths, sinks, wash or lavatory basins
IPC: A47K3/02
Filed: 1936-02-24
Abstract: 453,561. Baths; lavatory basins ; sinks. HAUSSMANN, J., 9, Rue Goethe, Strasbourg, Bas-Rhin, France. Feb. 24, 1936, No. 5488. Convention date, April 16, 1935. [Class 26] A bath, sink, or lavatory basin is provided on the whole of the interior surface and if desired also the exterior surface with a firmly adhering coating of rubber 2. The rubber may be coloured or decorated.
Patent GB-1328054-A (GB)
Title: Manufacture of bags or other articles comprising plastics  sheet material
IPC: B65D30/00
Filed: 1972-02-07
Abstract: 1328054 Plastics bags LES ATELIERS DE CONSTRUCTIONS MECANIQUES C & A HOLWEG SA 7 Feb 1972 [16 Feb 1971] 5523/72 Heading B8K [Also in Division B5] To enable one layer of plastics sheet to be secured to another plastics sheet by the use of adhesive, in the manufacture of plastics bags for example, a layer 6 of paper or cardboard is laid in the seam and the adhesive is applied to both sides of the layer or to the plastics sheet. The layer is porous and enables solvent in the adhesive to evaporate. Bags made in this way may be flat or may have square or block bottoms.
Patent GB-1351406-A (GB)
Title: Fabrication of bonded-particle nuclear fuel sticks
IPC: G21C21/04
Filed: 1972-02-07
Abstract: 1351406 Moulding nuclear fuel elements UNITED STATES ATOMIC ENERGY COMMISSION 7 Feb 1972 [10 March 1971] 5545/72 Heading B5A In a method for producing bonded particle nuclear fuel sticks, nuclear fuel particles from a source 35 are fed via a hopper 1 to a mould 2, where they are compacted by vibration whilst being supported by a lower ram 32; the compacted particle bed 17 is then moved downwards out of the mould, by simultaneous operation of an upper ram 8 and the lower ram 32, past a bonding material injection station where a fluid bonding agent, e.g. pitch is injected through conduit 25 and annular space 23 into the moving particle bed, and into a sleeve 18 having a water cooled region where the bonding agent is solidified. Movement of the stick is assisted by pulsating high pressure air admitted through port 9. The upper portion of the sleeve 18 and lower portion of the mould 2 are heated to ensure that the bonding agent remains fluid. If a thermosetting bonding material is used, the heated and cooled regions of the apparatus must be reversed.
Patent GB-456249-A (GB)
Title: Improvements in or relating to flotation apparatus
IPC: B03D1/16
Filed: 1936-02-24
Abstract: 456,249. Concentrating ores. DAMAN, A. C., 1419, 17th Street, Denver, Colorado, U.S.A. Feb. 24, 1936, No. 5560. [Class 82 (ii)] A classifying or separating chamber having a sump at the bottom, an inlet some distance above the sump, and an opening in the wall positioned below the inlet and covered with a flexible diaphragm by means of which a pulsating movement is imparted to the material in the chamber is provided either in the feed conduit of a flotation apparatus or connected to an outlet below the impeller or in both places. Fig. 3 shows a flotation cell, divided into an agitation zone and a froth-forming zone by a grating 26 and having an air inlet pipe 27 and a rotary impeller 28 which may have radial blades 29 on its underside. Tailings pass over an adjustable weir 25 and a rotary skimmer 34 carries froth &c. over a lip 24. The pulp is fed to the cell through a separating chamber 38 comprising a sump 39 with a valve 40 for intermittent discharge of the heavy particles. An opening 41 in the wall of the chamber below the pulp inlet 45 is covered with a flexible diaphragm 42 to which a pulsating movement is imparted by an electromagnet 43 and a spring 44. The heavier tailings fall into the sump and the remainder passes to the agitation zone of the flotation cell through the conduit 36. A similar separating chamber 47 may be connected to an outlet 46 below the impeller, whereby heavy tailings are removed from the cell. The chambers 38 and 47 may be provided with pipes by means of which additional water may be supplied either for dilution of the pulp or to increase the separating effect. Fig. 1 shows a separating chamber for use in conjunction with a flotation cell in which the pulsating action is produced by pneumatic or hydraulic means. The opening 16 in the wall of the chamber 8, below the inlet 9 but above the sump 10, is closed by a flexible diaphragm 17 which forms one wall of a pressure chamber 14 to which liquid or gas under pressure is supplied intermittently through a conduit 19 provided with a rotary valve 18. At the top of the pressure chamber 14 is an air-compression dome 20 having an overflow or relief port 21.
Patent GB-469623-A (GB)
Title: Improvements in and relating to spinning pots for artificial silk and the like
IPC: D01D7/02
Filed: 1936-02-25
Abstract: 469,623. Centrifugal spinning - pots. ASHDOWN (BIRMINGHAM), Ltd., H. E., and SNELL, A. G. Feb. 25, 1936, No. 5577. [Class 23] [Also in Group IX] Spinning - pots for artificial silk and the like comprise a metal shell a, preferably of aluminium, and a body b of phenol formaldehyde condensation product or other synthetic mouldable substance moulded therein so as to form an effective union. Holes g are provided in the shell to afford a key connection for the body which is provided at these parts with the usual draining holes h, the construction preventing creeping of acid between the parts.