baber/WOPTO huggingface dataset:
Patent GB-938331-A (GB)
Title: Aerosol container
IPC: B65D83/14
Filed: 1959-11-17
Abstract: 938,331. Dispensing liquids by gaseous pressure. L'OREAL. Nov. 17, 1959 [Nov. 17, 1958; June 11, 1959], No. 38951/59. Class 102(2). The aerosol liquid in a supply reservoir for filling an aerosol container is further pressurised by an inert gas. The reservoir 22 has a valve 24 which may be depressible, as shown, or tiltable and is engageable in the outlet valve 45 or in an adjacent filling valve of a refillable container 35 provided at the opposite end with a vent valve 36 which may be tiltable, as shown, or depressible. The container 35 may be of glass with a plastic cover and the ends may have portions which bulge under excessive pressure. An excess pressure valve may be provided. An example of the aerosol liquid comprises butane, CF 2 Cl 2 , CFCl 3 , alcohol and active material and the liquid may be pressurised by nitrogen at 1À5 to 4 atmospheres.
Patent GB-188993-A (GB)
Title: Improvements relating to vertically-sliding windows and the like
IPC: B63B19/00
Filed: 1921-12-16
Abstract: 188,993. Swan, Hunter, & W. Richardson, Ltd., and Temple, G. T. Dec. 16, 1921. Ship windows.-In verticallv sliding windows, and particularly ship's cabin and deck windows, the glass carrier a slides in a frame b connected by parallel pivoted links c to a fixed frame d and movable relative thereto by worm and pinion gearing n, m, so as to engage the jointing ring e and rib f. The frame b is operated by links keyed to the pinion shaft j and by connecting links g pivoted to the frame. The worm is operated by a key engaging the squared end of the spindle p. The window is of the balanced sliding kind, and a stop q is provided for the highest position.
Patent GB-1157445-A (GB)
Title: Reductive Dimerisation of Unsaturated Nitriles and Esters
Inventor: LITTLEHAILES JOHN DAVID
IPC: C07B31/00
Filed: 1965-09-24
Abstract: 1,157,445. Dimerization of esters and nitriles. IMPERIAL CHEMICAL INDUSTRIES. 14 Sept., 1966 [24 Sept., 1965; 13 Jan., 1966; 24 May, 1966; 28 July, 1966], Nos. 40737/65, 1621/66, 23153/66 and 33956/66. Heading C2C. α,#-Olefinically unsaturated esters or nitriles are reductively dimerized by an amalgam reduction system, the ester or nitrile being contained in a homogeneous reaction medium including a proton source that co-operates with the amalgam to provide said reduction system, characterized in that the reaction medium contains more than 50% by wt. of a polar aprotic solvent and a dissolved non-reacting fully alkylated onium salt to enhance yields of dimer. The reaction may be effected by employing as the starting components an alkali metal amalgam, water, methanol or ethanol as proton source, and a quaternary ammonium salt having radicals of aliphatic character attached to the nitrogen atom, characterized in that the reaction medium has an apparent pH of from 7 to 11À5, contains a proportion of unsaturated ester or nitrile within the range of from 2À5 to 20 mole per cent, a proportion of proton source within the range 1-30 mole per cent and a proportion of quaternary ammonium salt exceeding 0À2 mole per cent based on the total amount of ester or nitrile, proton source, onium salt and polar organic solvent. The quaternary ammonium salt may be present as a halide, bicarbonate or p-toluene sulphonate and the polar aprotic solvent may be acetonitrile, formamide, dimethyl formamide, dimethyl sulphoxide, diethyl formamide, dimethyl acetamide, dioxan or tetrahydrofuran. The reaction may be effected at 10-55‹ C. and the pH may be controlled by employing carbon dioxide or hydrogen chloride. In specific examples adiponitrile is prepared from acrylonitrile.
Patent GB-807688-A (GB)
Title: Improvements in or relating to telescopic pit-props
IPC: E21D15/54
Filed: 1956-11-08
Abstract: 807,688. Pit props. GERLACH, K., and GERLACH, H. Nov. 8, 1956 [Nov. 11, 1955], No. 34187/56. Class 20(2) The lower prop 2 of a telescopic metal pit prop seats on a base plate 5, of greater cross-section than the lower prop 2 on which is mounted an upwardly tapering jacket 6. The jacket 6 may be detachably connected or welded to the lower prop 2, may be of truncated conical or pyramidal shape. The upper surface of the base plate 5, may be concave or may have a central annulus positively locating the foot of the prop. It may be curved with a radius equal to the height of the jacket 6. The top of the jacket 6 may be welded to the prop 2. A clamp or stirrup 7 may secure the prop in the jacket.
Patent GB-661263-A (GB)
Title: Improvements in or relating to knitted fabric
IPC: D04B1/26
Filed: 1946-11-19
Abstract: 661,263. Knitting. HEMPHILL CO. Nov. 19, 1946 [Dec. 8, 1945], No. 34252/46. Class 74 (ii). In a two-wale suture (e.g. split foot suture of Fig. 1) one wale is composed of two courses of one yarn and two courses of another yarn, in alternation; and the other wale of two courses of the first yarn in alternation with one course of the other yarn. Fig. 2 shows such suture formation (as in parallel-sided parts 3 and 39). Course A is knitted from right to left. On the return stroke (course B), needles 9 and 8 first draw loops 10, 11, of sole yarn; needle 9 is then raised to join the long butt group before reaching knitting cams at the auxiliary side and, on that same stroke also draws loop 12 of instep yarn through loop 10. Before beginning the succeeding stroke (course C) needles 8 and 9 are both raised into the long butt group; they thus draw loops 13, 14 of instep yarn on that stroke and they are then brought down to rejoin the short butt needles drawing, on the same stroke of the machine, loops 15, 16 of the sole yarn. This cycle is repeated. Fig. 3 shows suture formation whilst the sole is being widened (portions 5 and 40). Course E is knitted from right to left and course F from left to right, needle 19 being made, on the second stroke, to draw loops 18, 20 of sole and instep yarns. On the next stroke (course G) needle 19 is made to draw, first loop 21 of instep yarn and then loop 23 of sole yarn; and, when it is lowered to the short butt group to draw loop 23, needle 22 (which has drawn loop 25) is lowered with it to draw also loop 24 of sole yarn. The sole is thus widened by one needle wale and the cycle is repeated commencing with course H. In a modification, Fig. 5, needle 19 is raised, in course M, corresponding to course F, into the long butt group so that it takes the sole yarn round its shank, but does not knit it, with the result that it knits loop 20 of the instep yarn through loop 17 of the sole yarn and through an unknitted bight 38 thereof. Fig. 4 shows suture formation in the portion 4, where the sole is being narrowed. Course I is knitted from right to left. On the return stroke (course J) needle 28 is made to take a bight of sole yarn round its shank, but not to knit it, and then to knit a loop 31 of instep yarn through this bight and through the sole yarn loop 27. On the next stroke (course K) needles 32, 29 knit, first loops 34, 35 of instep yarn and then loops 36, 37 of sole yarn. The cycle recommences with course L, corresponding to course J. Specification 661,275 is referred to.
Patent GB-765606-A (GB)
Title: Improvements in or relating to compositions for polishing metals
IPC: C09K3/14
Filed: 1954-11-26
Abstract: Abrasive compositions for use in polishing metals are obtained from natural or crude aluminium oxide ores such as bauxite by calcining the crude ore in a furnace with a non-reducing atmosphere at a temperature in the range 500-1800 DEG C., preferably 800-1300 DEG C., so that the ore is not fused, and then grinding the calcined product to a fine powder, conveniently after a preliminary crushing.  The abrasive powder may be used as such, or may be incorporated in fluid abrasive compositions by employing petrol, alcohol or ammonia as carriers.  Alternatvely the powder may be mixed with waxes or organic or inorganic greases to form abrasive pastes.
Patent GB-1175262-A (GB)
Title: The Manufacture of Polyvinyl-Aromatic Compounds, and the Resulting Polymers.
Inventor: ROPER ALEC NORMAN
IPC: C08F279/02
Filed: 1967-07-26
Abstract: 1,175,262. Polyvinyl aromatic compounds. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 July, 1967, No. 34284/67. Headings C3G and C3P. A vinyl aromatic monomer is continuously polymerized in the optional presence of up to 20% by wt. of a hydrocarbon diluent, in a plurality of polymerization zones inter-connected in series which comprise a first polymerization zone, an agitated intermediate zone where the reaction mixture is maintained in a homogeneous condition and heat of polymerization is removed by evaporation of the monomer and diluent (when present) and a finishing zone where polymerization is completed to the desired degree under adiabatic, plug-flow conditions. The monomer may be styrene which may be mixed with polybutadiene, mineral white oil and a mixture of trinonyl-phenyl phosphite and 2,6-di-tert.- butyl p-cresol as antioxidants. In the Figure, styrene and elastomer is fed via line 1 to reactors 2, 3 and (via line 4) 5 in which polymerization occurs, styrene monomer vapour is removed via line 6 to condenser 7 and storage vessel 8 from which it returns to 5 via line 9; hydrocarbon diluent is fed via line 10; polymerization mixture is withdrawn via line 11 and fed to finishing reactor 12 which is operated liquid full under adiabatic, plug-flow (i.e. absence of intermixing or chanelling) conditions; the final product is removed via line 13 to devolatilizing extruder 14 where residual monomer and traces of diluent are removed via line 15.
Patent GB-900249-A (GB)
Title: Improvements in and relating to varifocal lenses
IPC: G02B15/14
Filed: 1958-10-27
Abstract: 900,249. Varifocal lens systems. BACK, F. G. Oct. 27, 1958 [June 27, 1958], No. 34285/58. Class 97 (1). A varifocal lens system for still photography comprises a front section of variable focal length having a total residual aberration which is substantially constant over the entire variable focal range, the front section including a front lens, a variator and a compensator disposed rearwardly of and spaced from the front lens and a stationary erector disposed between the variator and the compensator and spaced therefrom, the variator consisting of a plurality of spaced components in which the sum of the powers of the surfaces facing a fixed space between such components is at least four times as large as the sum of the powers of those surfaces of the variator facing the variable air spaces on the object and image sides respectively of the variator and the erector consisting of a plurality of spaced components in which the sum of the powers of the surfaces facing a fixed space between such erector components is at least twice as large as the sum of the powers of those surfaces facing the variable spaces on the object and image sides respectively of the erector, a rear relay section of fixed focal length arranged substantially to compensate for said constant residual aberration and an aperture stop between said front and rear sections. Preferably, the compensator 7 and the erector 8 each have a cemented doublet whereby the longitudinal and lateral colour of the front section are kept substantially constant. The relay section may comprise as shown the front negative component 12 which is a meniscus concave towards the front and corrects for the astigmatism of the front section, a positive component made up of lenses 13, 14 and 15 which correct for the spherical aberration and coma of the front section and a rear negative element which is a meniscus concave towards the rear and corrects for the distortion of the front section. In this relay section the front negative component has a power of between 0.5 P and 3.5 P, where P is the total power of the relay. The positive component has a power of between 2 P and 4 P and the rear negative element has a power between 0.5 P and 1.5 P. Optical data are given in the Specification for one example of the system shown.
Patent GB-199058-A (GB)
Title: Improvements in ball and float valves
IPC: F16K33/00
Filed: 1921-12-21
Abstract: 199,058. Leadbetter, W. Dec. 21, 1921. Ball and float valves having means for adjusting the float in relation to the lever. The float ball c is mounted on a vertical guide pin b<2> carried by a curved bracket arm b' provided with an elbow fitting b for attachment direct to the usual float lever a. In adjustment the float may move along the guide pin b<2>, or the pin may be fixed to the float and adjustably screwed into the arm b<1>. Two or more floats may be disposed on a single vertical guide pin, or on two or more such guide pins.
Patent GB-845397-A (GB)
Title: Electric typewriter embodying a motor operated eraser
IPC: B41J29/26
Filed: 1958-10-27
Abstract: 845,397. Erasers for typewriters. OLIVETTI & CIE S.p.A ING C. Oct. 27 1958 (Oct. 28, 1957], No. 34322/58. Class 146(3). A power operated typewriter 1 has a separate motor-operated eraser 5 which is housed in a recess in the typewriter and when it is removed for use, automatically operates a switch 12 to start the eraser motor and stop the typewriter motor 2. The switch 12 is operated by the movement of the eraser connecting lead 7 which is trained round two fixed pulleys 9, 11 and a pulley 10 mounted on a slide 13 biased to absorb the lead 7 by a spring 15. When the eraser 5 is taken up for use the slide actuates the switch 12 and so opens contacts 21 and closes the contacts 20 which connects the eraser to a transformer 5.
Patent GB-486903-A (GB)
Title: Improvements in cardboard box containers
IPC: B65D5/32
Filed: 1936-12-16
Abstract: 486,903. Collapsable cardboard boxes. MARDON, K. J. Dec. 16, 1936, No. 34509. [Class 18] A collapsable rectangular corrugated or faced cardboard box for pickle jars, jam jars, &c. is made from a container portion A, Fig. 3, and an encircling wall B, Fig. 4, the side 5 being metal stitched to a wall 9 or being secured thereto by fasteners or plastic material. Handholes, and partitions made of crossed cardboard strips also are provided. Both the ends of the container A may be formed like the part 5 or both like the part 6. With wider containers where the turned-over parts of the wall 6 do not meet, an insertion strip is stitched in the gap. The joint 11 is crimped and stitched.
Patent GB-791430-A (GB)
Title: Improvements relating to lifting forks
Inventor: WISBEY RONALD BERTRAM
IPC: B66C1/24
Filed: 1956-11-13
Abstract: 791,430. Lifting cradles. TEMPLEWOOD ENGINEERING CO., Ltd. Nov. 13, 1956, No. 34656/56. Class 78 (4). A lifting fork similar to that of Specification 752,470 is controlled by a compression spring 13. In the construction illustrated two such springs are provided acting through pullrods 9, 15 so that the link 5 by which the fork 1 is normally suspended from a crane hook A takes up the configuration shown when the fork is unloaded. When, however, the fork is loaded the link 5 is moved against the bias of the springs 13 to the broken line position in which a stop 21 on the link engages a portion 22 of a box member 4 carried by the fork 1. This permits the fork to be substantially level when loaded and when unloaded: preferably the fork tips somewhat downwardly and forwardly when unloaded and somewhat downwardly and rearwardly when loaded. A handle 2 joins the two tines of the fork.
Patent GB-941724-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60V1/00
Filed: 1960-10-11
Abstract: 941,724. Air cushion vehicles. ANTIFRICTION HULL Inc. Oct. 11, 1960 [Oct. 15, 1959], No. 34758/60. Heading B7K. A vehicle for moving over a water surface comprises a hull, a variable speed power plant supported on said hull for propelling said vehicle along the water surface, means providing a longitudinal air space along the entire length and under the bottom of said hull, movable flap means swingably depending from the bow portion of said hull on an axis transversely of said hull and extending transversely of said space, said flap means defining a front wall section of said space and means for blowing air under pressure only into said space and against substantially the entire rear surface of the flap means for developing and continuously maintaining within said space a rearwardly moving layer of air under controlled optimum superatmospheric pressure effective and sufficient during vehicle movement by said propelling means to raise and support said hull out of effective frictional surface contact with the water, said layer of air being continuously exhausted at the rear end of said air space, and said flap means being substantially entirely backed by said pressurized air to oppose rearward swinging of said flap means due to hydrodynamic forces acting on said flap means as the vehicle moves along the water. The vessel comprises a hull 11 having opposite side walls 12, stern 14, bow section 15 and a bottom panel 21 which slopes upwardly at its forward end 22, the cavity formed between panel 21 and depending portions 31, 32 of the side walls being longitudinally sub-divided by a rail or panel 33 thereby forming two air spaces or cells 34 and 35. The vessel is powered by an outboard power unit 16 and the bow section 15 is formed with a transverse plenum chamber 24 housing a blower 25 driven by an engine 27, the chamber 24 having a forwardly facing air inlet 20 and an outlet 28 leading to the cells 34 and 35, the forward ends of which are closed by flaps 36, 37 respectively. As shown, the-flaps are rigid and pivoted at 38 and connected by a spring-loaded rod 42 to a control lever 46. The rear ends of the cells are closed by respective flaps 54, 55 pivoted at 56 under the control of a threaded adjusting device 57. In operation air delivered by blower 25 is forced into cells 34 and 35 to create a cushion, the pressure of which is set at an optimum value by adjustment of lever 46 and device 57. If flaps 36, 37 strike waves or other obstacles they move upwardly against the action of spring 48. Seals 51 and 59 respectively are formed at the edges of flaps 36, 37 and 54, 55. The forward flaps may carry flexible seals on their lower edges or the doors may be wholly flexible and a further embodiment discloses an outlet 28 formed between spaced flaps pivotally interconnected.
Patent GB-804171-A (GB)
Title: Improvements relating to metal rectifier assemblies
IPC: H01L23/48
Filed: 1954-12-01
Abstract: 804,171. Rectifier assembly. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Nov. 15, 1955 [Dec. 1, 1954], No. 34773/54. Class 37. A rectifier assembly of the kind in which an element or group of elements is required to have electrical characteristics matching those of another element or group of elements in the assembly is made by encapsulating individual elements in a potting compound, then selecting matched encapsulated elements by testing and connecting the matched elements to form the assembly. Connections are made to opposite faces of a Se plate rectifier by a pair of resilient clips 4, 4<SP>1</SP> the plate-like jaws 6, 6<SP>1</SP> of which engage opposing faces of the plate. The clips to which leads 1, 1<SP>1</SP> are attached are insulated from the other faces of the plate by insulating pads 3, 31. The plate is then encased in a potting compound (phenolic compounds are unsuitable for Se in the absence of a protective layer) through which the leads protrude and subjected to stabilizing treatment. Matched elements are then assembled in a frame or box and retained by a cold setting adhesive or a retaining member or cover, external connections and interconnections being effected via leads 1, 1<SP>1</SP>.
Patent GB-1164346-A (GB)
Title: Purification of Hexamethylenediamine
IPC: C07D295/13
Filed: 1967-07-28
Abstract: 1,164,346. Purification of hexamethylenediamine. CELANESE CORP. 28 July, 1967 [11 Aug., 1966], No. 34775/67. Heading C2C. Crude hexamethylenediamine is purified by dissolving the material in a saturated hydrocarbon having 5-12 C atoms, e.g. cyclohexane, or in a mixture of such hydrocarbons, at an elevated temperature, cooling the solution and separating the crystalline product. The hexamethylene diamine is preferably dissolved at a temperature above 40‹ C. and crystallized by cooling to 25‹ C. or below. The preferred starting material is crude hexamethylenediamine produced by the hydrogenation of adiponitrile or by the ammonolysis of 1,6-hexandiol.
Patent GB-911077-A (GB)
Title: Improvements in or relating to guide track means
Inventor: HAYES GEORGE
IPC: F16C29/06
Filed: 1959-10-14
Abstract: 911,077. Rectilinear-motion bearings. HAYES ENGINEERS (LEEDS) Ltd. Sept. 2, 1960 [Oct. 14, 1959], No. 34813/59. Class 12 (1). A rectilinear-motion ball bearing has a guide 2 with a longitudinal ball-track 8 along its periphery and a return passageway 11 therethrough, and end caps 13 each having a curved path 12 to connect the track 8 and passageways 11 to allow re-circulation of the balls. The balls engage fixed guide tracks 18 having longitudinal V-shaped grooves 17 therein and the guide 2 is held by bolts 3 to a movable member 4, clearance being provided between the bolts 3 and the guide 2 to allow self-aligning to be effected. The groove 17 extends to a recess 16 which receives the spigots 15 of the caps 13 and the latter are provided with semicircular cavities 12a which receive semicircular projections 19 of the guide 2.
Patent GB-848613-A (GB)
Title: Method of removing acid gases from hydrogen-containing gases
IPC: B01D53/62
Filed: 1958-10-30
Abstract: In the removal of carbon dioxide from hydrogen by absorption in a solvent, e.g. aqueous mono-, di-, or tri-ethanolamine, which is thereafter regenerated by heating, the heat required is provided by compression of the hydrogen.  Heat evolved in any subsequent p reaction of the hydrogen may also be utilized.  The carbon dioxide may be formed by conversion of carbon monoxide.  The absorption may be effected at a temperature of 50-80 DEG C.  The resulting compressed purified hydrogen may be used in the production of ammonia or heavy water.  Heat may be transferred by means of a liquid which is vaporized on or after heat-exchange with the compressed hydrogen and before heat-exchange with the solvent. The vapour may be compressed before heat - exchange with the solvent.  The heat - exchange liquid may be recycled between one or more compressed hydrogen heat-exchangers and a low pressure vaporizer, a portion being passed as vapour from the vaporizer to a stripper, and recycled to the vaporizer as a condensate (Fig. 1, not shown).  Alternatively each heat-exchanger may act as a low-pressure vaporizer (Fig. 2, not shown).