baber/WOPTO huggingface dataset:
Patent GB-1435543-A (GB)
Title: Quick disconnect closure for conduits
IPC: F16J13/12
Filed: 1973-07-20
Abstract: 1435543 Tube stopper GENERAL CONNECTORS CORP 20 July 1973 [24 July 1972] 34656/73 Heading F2P A quick disconnect closure for a tube 1 includes an inner sleeve 2 permanently sealed to the end of the tube 1; diametrically disposed bayonet pins 5 protruding from the inner sleeve 2; an outer sleeve 10 capped at one end, slidably fitting about the inner sleeve 2 and including bayonet slots 11 engageable with the bayonet pins 5; seal means 23 between the inner and outer sleeves 2, 10; and yieldable means interposed between the inner sleeve 2 and capped end urging the bayonet pins 5 and slots 11 into interengagement. As described the inner sleeve 2 includes a cylindrical sealing surface 3 and a tapered extremity 4 and the end cap includes the outer sleeve 10, a hollow flange 8 housing the sealing ring 23 and a bulbous end closure 6. A central pin 13 having a head 14 is secured to the end 6 by a screw-threaded stem 15 and nut 16, the base of the stem 15 being sealed to the end 6 by brazing or by a suitable gasket (not shown). A flange 19 having a central sleeve 20 and a rim 21 is slidably mounted on the pin 13 and a spring 22 is interposed between the flange 19 and end 6. When the end cap is fitted on the inner sleeve 2 the flange 19 engages the end 4 of the sleeve to force the end cap axially outwards so that the ends of the pin 5 engage recesses 12 at the ends of the bayonet slots 11.
Patent GB-1332715-A (GB)
Title: Oxo process for the production of aldehydes from olefins
IPC: C07C45/50
Filed: 1971-07-26
Abstract: 1332715 Oxo process SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 26 July 1971 [27 July 1970] 34871/71 Heading C2C  An oxo process for the production of an aldehyde comprises reacting a mono-olefin with hydrogen and carbon monoxide in a solvent at a temperature of from 150‹ to 275‹ C. and a pressure of from 1000 to 4500 p.s.i.g., in the presence of, as catalyst, zero-valent copper promoted with 0À2 to 4À0 moles of water per mole of copper, the molar ratio of olefin to carbon monoxide being from 2 : 1 to 20 : 1. The catalyst is suitably finely divided copper metal and the solvent is suitably benzene or tetrahydrofuran. Examples describe the preparation of butyraldehyde from propylene and propionaldehyde from ethylene with diethyl ketone as a by-product.
Patent GB-1525403-A (GB)
Title: Mercury vapour lamp and method of operating same
IPC: F21V29/00
Filed: 1975-08-22
Abstract: 1525403 Discharge lamps UNION CARBIDE CORP 22 Aug 1975 [23 Aug 1974] 34884/75 Heading H1D A mercury vapour lamp 10 for generating ultra-violet light comprises a quartz envelope housing tungsten electrodes 18, 20 which are sealed through the envelope by molybdenum strips to connect with supply conductors 22, 26 which are in electrical and thermal contact with respective heat sinks 12, 14, and wherein the A.C. supply source 62 is connected across the heat sinks and each heat sink has an arrangement for passing cooling liquid, e.g. water, therethrough such that the liquid does not contact the envelope. The arrangement is such that with the temperature of the heat sinks being maintained below 100 C., the temperature of the molubdenum strips is maintained below 400 C. As shown, the heat sinks 12, 14, of copper or aluminium, are formed as two blocks 50, 52 bolted together to electrically contact respective conductors 22, 26. The sealed ends of the lamp, e.g. in the form of pinch seals, may be encapsulated in ceramic material or provided with metallic caps. A number of Hg vapour lamps so cooled may be used in a photocuring apparatus provided with a controlled inert atmosphere above the surface being irradiated, Fig. 4 (not shown).
Patent GB-373587-A (GB)
Title: Improvements relating to alcohol manufacture
IPC: C12P7/14
Filed: 1930-11-20
Abstract: the residue of yeast and solids recovered from alcoholic fermentation liquids such as beer by the use of a flocculating yeast culture is used as a food for animals or as a fertilizer. The culture is a mixture of yeast and bacteria such as those of the lactic acid producing group associated with the yeast.  The residue is filtered off and refermented in a dilute molasses solution before filter-pressing.ALSO:Yeast and solids are recovered from alcoholic fermentation liquids such as beer by the use of a flocculating yeast culture comprising a mixed culture of yeast and bacteria.  Bacteria such as those of the lactic acid producing group associated with the yeast are suitable.  The organism is a small gram-positive coccus which grows on media containing peptone but not on malt wort or molasses mash.  The residue of yeast and solid is filtered off and is refermented in a dilute molasses solution before filter-pressing. This residue is suitable as a food for animals or as a fertilizer.
Patent GB-970178-A (GB)
Title: Improvements in or relating to recuperative heat exchangers
Inventor: GAME PETER JOHN
IPC: F28F21/00
Filed: 1962-09-13
Abstract: 970,178. Air-heating apparatus. WELLMAN SMITH OWEN ENGINEERING CORPORATION Ltd. Sept. 12, 1963 [Sept. 13, 1962], No. 34979/62. Heading F4S. In a recuperative heat exchanger heat exchange takes place between a first gas flowing through a duct 14 and a second gas flowing through refractory tubes 12 traversing said duct and leakage and mixing of the gases is prevented or reduced by the provision of a metal plate 23 sealed to the tube end by sealing element 22 and to the duet wall, the wall of the end portion of each tube is recessed internally to accommodate the head of bolts 20 which bolts pass through and secure the tube end 11, sealing element 22 and plate 23. The end 11 of each tube is enlarged, channels 19 being provided in the thickened end section for the bolts, which bolts may have hammer heads. The recess 17 containing the heads is of annular form; alternatively, a short recess may be provided for each bolt-head, Fig. 4 (not shown). The bolts may be secured by nuts 28 or cotters. Another sealing ring 25 and a metal ring 26 may also be used to improve the seal. A core may be provided within each tube.
Patent GB-487252-A (GB)
Title: Improvements in or relating to internal shoe brakes
IPC: F16D51/24
Filed: 1936-12-21
Abstract: 487,252. Internal shoe brakes. AUTOMOTIVE PRODUCTS CO., Ltd., HAYES, C., and CHOUINGS, L. C. Dec. 21, 1936, No. 35079. [Class 103 (i)] In an internal shoe brake, having shoes acting independently of one another, the shoes are mounted slidably on fixed pivots so that they have a pivoting and sliding movement the fulcrum of which lies on that drum diameter at right-angles to the drum radius bisecting the span of the shoe lining. The inclination alpha of the sliding movement is in such a sense that the sliding surface of the shoe when produced passes to that side of the drum axis remote from the body of the shoe and is usually between 20 to 35‹. The anchored ends of the shoes have slots engaging the flat sides of members 38 rotatable on a fixed anchor 40. In a modified form the ends of the shoes are provided with large circular holes occupied by collars having slats engaging sliding surfaces on the fixed anchor pin. In a further modification each shoe is formed with a V-shaped notch one side of which forms the sliding surface, the shoes being held in position by oval washers on each side. In a further modification the intermediate members 38 are omitted and the shoes slide directly on the anchor. The sliding surface may be provided with a hardened steelwear plate. In a further modification the two shoes of a brake are mounted on separate anchors. In a further modification the shoes are pivoted to slipper blocks sliding on inclined surfaces. Specification 311,015, [Class 103 (i)], is referred to.
Patent GB-781422-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1953-12-17
Abstract: The invention comprises compounds of the general formula <FORM:0781422/IV (a)/1> (wherein R represents an acyl group and R1 an acyl group derived from an aliphatic acid having not more than 6 carbon atoms in the molecule), and the preparation thereof by the action of a halide or anhydride of an aliphatic acid R1OH, by heating in the presence of a catalytic amount of a strong acid, on a 3-acyloxy - 5,6 - dichloro - 20 - ketopregnane, which in turn may be prepared by the action of chlorine on the corresponding D 5-3-acyloxy-20-ketopregnene, obtainable by acylating pregnenolone. The chlorination is preferably effected with a slight excess of chlorine in an organic solvent at about - 60 DEG  C. In examples, pregnenolone acetate (prepared by refluxing pregnenolone with acetic anhydride) is treated with chlorine in chloroform below - 20 DEG  C., or with chlorine in chloroform and carbon tetrachloride in the presence of pyridine at - 60 DEG  C., and the resulting 3-acetoxy-5 : 6-dichloro-20-ketopregnane is heated with acetic anhydride and p-toluenesulphonic acid monohydrate to produce D 17 (20) - 3 : 20 - diacetoxy - 5 : 6-dichloropregnene.  Specifications 781,423 and 781,424 are referred to.
Patent GB-1517565-A (GB)
Title: Folding blade knife
IPC: B26B5/00
Filed: 1975-08-26
Abstract: 1517565 Pocket knives STANLEY TOOLS Ltd 5 Aug 1976 [26 Aug 1975] 35245/75 Heading B4B A folding-blade knife comprises an elongated blade member 11 and two U-shaped guard members 12, 13, the free ends of which being pivotally connected to the blade so as to cause the two guard members to normally cover both the faces and the edges of the blade, the arrangement being such that the first guard member to be unfolded from the blade member is the guard member covering the faces of the blade member, the second guard member to be unfolded from the blade member being the guard member covering the edges of the blade member. The blade is held in a holder 26 including two parts 27, 28 each pivotally mounted on the respective arms of the guard member 12. The guard member 13 is provided with pivot pins 33a, 33b adapted to be sprung into respective holes in the edge of the holder. In order to replace a blade, the guard 13 is pivoted at right angles to the guard 12, Figs. 8 and 9 (not shown) and twisted thereby causing the pins to move out of the holes; the holder then moves apart under the resilience in the arms 31, 32 of the guard 12 sufficiently for the blade to be removed. In a modification, Fig. 28, not shown, the two parts of the holder are secured together by a screw- and-nut device (29<SP>1</SP>, 30<SP>1</SP>) the screw being removed when it is desired to change a blade.
Patent GB-896198-A (GB)
Title: Low temperature polyether-urethane compositions
IPC: C08G18/42
Filed: 1958-11-03
Abstract: A solid, non-cellular polyester-urethane composition characterized by having a low brittle point comprises a rubbery reaction product (cured under heat and pressure) of about 0,9 to about 1,5 equivalent weights of an organic diisocyanate and about 1 equivalent weight of a polyester containing terminal hydroxyl radicals and having a molecular weight of at least 500 and which is a reaction product of an organic dicarboxylic acid with a mixture of glycols containing about 30 to about 70 mole per cent of butylene-1,4-glycol, said rubbery reaction product having been prepared and cured under heat and pressure, without the addition of water.  The preferred dicarboxylic acids are those having 5 to 12 carbon atoms, such as adipic acid or isosebacic acids which are a mixture of 2-ethyl suberic, 2,5-diethyl-adipic and sebacic acids.  "Diisocyanates" includes polyisocyanates having a larger number of isocyanato groups some of which hindered so that only two of the isocyanato groups are effective for making polyurethanes.  The polyester and polyisocyanate are usually reacted at 100 DEG  to 140 DEG C. and the resulting polymer may then be milled with carbon black, clay silica, or calcium carbonate and cured under heat and pressure.  The preferred curing agent is a dialkyl peroxide, e.g. dicumyl peroxide.  Also suitable are di-t-butyl peroxide, di-2,21-bis(t-butyl) peroxy butane, 2,2-bis(dichlorophenyl) isopropyl-, isopropyl-, methyl cumyl-, cumyl-cymyl-, t-butyl-peroxides, 1-isobutoxy-1-cumyl peroxy ethane, and, for non black stocks, t-butyl perbenzoate, lauryl peroxide and benzoyl peroxide.  In examples the polyesters employed are poly(ethylene-butylene-1,4) adipate, and poly(ethylene-butylene-1,4) isosebacate, and p,p1-diisocyanato diphenyl methane was the diisocyanate. Comparison polyurethanes from esters obtained from other glycols or, mixtures of glycols and in some cases modified with N-butyl-diethanolamine or 2-ethyl butanol-1, or from the butane-1,4-diol and other glycols outside the specified range are given.  Lubricants such as stearic or oleic acid or silicone grease may be incorporated.
Patent GB-910170-A (GB)
Title: Apparatus for braking aeroplanes or other vehicles
IPC: B64F1/02
Filed: 1959-10-19
Abstract: 910,170. Vehicle arrester gear. BORGS FABRIK A.B. Oct. 19, 1959 [May 29, 1959], No. 35287/59. Class 103 (1). [Also in Groups XXX and XXXIII] Apparatus for retarding aircraft or other vehicles, by means of an arresting device, such as a net connected at one or both ends to a braking wire 2, adapted, when braking takes place, to be unwound from a brake drum of a braking device, is characterized in that a portion only of the braking wire 2 is slidably arranged around the brake drum 1, while the remainder thereof is stored in advance of the brake drum as seen in the run-out direction, and is so coiled that as the wire is running out to the brake drum for braking, this will take place while successively accelerating sections of the wire one at a time. This is arranged by coiling the wire in a storage 3 in such a way that only a portion of the wire next to the outlet will move. By this arrangement, although a wire of considerable length may be used, most of it will initially be coiled, so that the inertia mass that is required to be accelerated at the beginning of the operation is kept small. The wire 2 is coiled around a brake drum 1, and idle auxiliary roller 6 in such a way as to make the wire keep a constant position on the drum after each turn.
Patent GB-759468-A (GB)
Title: Titanium clad steel plate
IPC: B32B15/01
Filed: 1954-05-03
Abstract: 759,468. Making compound plates. LUKENS STEEL CO. May 3, 1954 [May 7, 1953], No. 35375/55. Divided out of 759,413. Drawings to Specification. Classes 83 (2) and 83 (4). A composite metal article comprises a steel or ferrous alloy plate bonded to a sheet of titanium with an intermediate coating of iron or nickel. The method of forming a compound sheet by rolling a pack is described in Specification 759,413. Specification 759,469 also is referred to.
Patent GB-1485685-A (GB)
Title: Frequency locking system
IPC: H03L7/18
Filed: 1975-08-28
Abstract: 1485685 AFC systems TEKTRONIX Inc 28 Aug 1975 [29 Oct 1974] 35455/75 Heading H3A An AFC system for locking a swept frequency oscillator to the centre frequency of a sweeping voltage, e.g. in a spectrum analyser, comprises a voltage controlled sweep oscillator 10, a frequency divider 12, a phase and frequency detector 14 responsive to the divided output and a reference signal from 16, an arrangement 20-32 responsive to the detector 14 output to provide a frequency/phase error signal and an adder 18 for adding the error signal to a sweep voltage for control of oscillator 10. Locking to the centre frequency is achieved by gating at 20, 22 the detector outputs only at instants corresponding to the sweep centre frequency and employing the error voltage stored in integrator capacitor 34 during the remainder of the sweep cycle.
Patent GB-1107385-A (GB)
Title: Improvements in or relating to processes for the preparation of spherical particles of nuclear fuel
Inventor: PLAS THEO VAN DER
IPC: C09K23/00
Filed: 1964-08-29
Abstract: 1,107,385. Nuclear fuel. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 20 Aug., 1965 [29 Aug., 1964], No. 36463/64. Heading G6C. In making spherical nuclear fuel particles containing carbon by a process involving conversion of a sol to a gel, finely-divided carbon is present when peptization to form the sol takes place. On mixing the sol with an organic gelling medium, the carbon stays in the aqueous phase. In examples, thorium hydroxide is precipitated by adding ammonia to a solution of thorium nitrate, and the precipitate is washed and treated with a mixture of acidified uranyl nitrate solution and an aqueous carbon suspension at elevated temperature. The sol is concentrated, mixed with a solution of hexamethylene tetramine, and dispersed at 90 C. into tetrachloroethane containing a surface-, active agent in order to form spherical gel particles which are washed with dilute ammonia, dried, and heated. Alternatively, or in addition, the carbon suspension is added to the thorium nitrate solution before precipitation of the hydroxide. The spherical gel particles may be heated to 140-1800 C. to form metallic carbides and the particles then coated with carbon. Fuels containing plutonium may be prepared similarly.
Patent GB-1441304-A (GB)
Title: Polyester films
IPC: B29C49/00
Filed: 1973-07-25
Abstract: 1441304 Polyethylene naphthalate copolymer films TEIJIN Ltd 25 July 1973 [25 July 1972] 35490/73 Heading B5B A biaxially oriented film comprising a blended mixture of a polyethylene 2,6-naphthalate resin and 0À5 to 10% by wt. of a polyester resin, other than the polyethylene 2,6-naphthalate, in which the amount of the homopolyester unit is at least 90 mol per cent, and which has a softening point at least 1 C. higher than the equilibrium softening point is melt extruded from a melt of the said blended mixture, biaxially oriented by stretching longitudinally and transversely and then optionally heat treated.
Patent GB-1281833-A (GB)
Title: Process and apparatus for the manufacture of fibrous sheet material
IPC: D21F9/02
Filed: 1969-07-15
Abstract: 1281833 Papermaking FELDMUHLE ANLAGEN UND PRODUKTIONS GmbH 15 July 1969 [15 July 1968] 35577/69 Heading D2A A papermaking machine wherein the wire 1 in the web-forming zone is inclined to the horizontal, and forms one end wall of a trough to which pulp is supplied, comprises a plurality of suctions chamber 3a-3e for withdrawing water through the wire, and, within the trough, a resiliently flexible and movable endless band 10 having a convexly curved lower run that forms between it and the surface of the wire a space that converges upwardly, means for adjustably varying the curvature of the lower run, and means for adjusting the speed of the endless belt. The whole unit carrying the endless band 10 may be adjustable relative to the wire (arrows 9 and 11), and the shape of the curve between rollers 6 and 7 may be varied by structural parts 14 (only one shown) which carry rollers 15 and are pivotable about 16. The band may be tensioned by roller 12.
Patent GB-832500-A (GB)
Title: Improvements relating to electron optical apparatus
Inventor: HAINE MICHAEL EDWARD
IPC: G01C13/00
Filed: 1955-12-12
Abstract: 832,500. Electron beam deflecting apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1956 [Dec. 12, 1955], No. 35600/55. Class 39(1). In a cathode ray tube such as a reflection microscope the beam is given an alignment deflection in two perpendicular directions by two pairs of combined electrostatic and magnetic deflection means spaced along the beam the first pair of means giving electrostatic deflection in one direction and magnetic deflection at right angles to this direction, and the second pair of means reversing the deflections of the first pair of means so that the direction of impact of the beam on the target is altered without altering the point of impact. In the form described the plates 3, 3<SP>1</SP>, 4, 4<SP>1</SP> serve as polepieces of iron cored electromagnets 8, 13, 9, 14, 10, 15, 11, 16 supported by yoke 12, and are insulated from the cores 8, 9, 10, 11 so that they can also serve as electrostatic deflecting plates. The electric deflection is first to the right and then back to the axis in the plane of the paper while the magnetic deflections are similar but in a plane perpedicular to the plane of the paper. A prior art device in which an electron gun is movable laterally to alter the direction but not the point of impact the centre of curvature of the spherical surface lying in the plane of the target, is referred to.
Patent GB-1352718-A (GB)
Title: Olefin polymerization
IPC: C08F10/00
Filed: 1971-07-29
Abstract: 1352718 Olefin polymerization catalyst MONTECATINI EDISON SpA 29 July 1971 [31 July 1970] 35619/71 Heading C3P  An olefin polymerization catalyst comprises (I) an organometallic compound or hydride of a metal of Groups I, II or III and (2) a titanium compound supported on an intimate mixture of an anhydrous magnesium or manganese halide and an anhydrous compound of a metal of Groups III or IV (including silicon and boron). The halides have a specific surface area which exceeds 3 m.<SP>2</SP>/g., and may be obtained by finely grinding the inactive coarser material, by rapid evaporation of solutions under reduced pressure or, for the magnesium compounds, by thermal decomposition of adducts of the halides with Lewis acids or from organomagnesium halides by disproportionation or by reaction with halogencontaining compounds. The supported component may be prepared simply by grinding the titanium compound with the support materials, and the activation of the magnesium or manganese halide may also be effected by this grinding. Examples describe the polymerization of ethylene using (1) Al(i-Bu) 3  and (2) TiCl 4 , 3TiCl 3 .AlCl 3 , TiCl 3 (NEt 2 ) or TiCl 3 (O.n-Pr), supported on MgCl 2  or MnCl 2  mixed with B 2 O 3 , Al 2 O 3 , TiO 2 , SiO 2 , kieselguhr, TiOSO 4 , Al 2 (SO 4 ) 3 , AlPO 4 , SnCl 2  or PbCl 2 .
Patent GB-1143095-A (GB)
Title: Improvements in electrical insulator
IPC: H01B17/42
Filed: 1966-08-09
Abstract: 1,143,095. Insulators. GENERAL ELECTRIC CO. 9 Aug., 1966 [27 Aug., 1965], No. 35622/66. Heading H2C. A part of the surface of an insulator of a first organic dielectric material which is subject to tracking is composed of a second, relatively track resistant organic material which is degraded by scintillations without substantial carbonaceous residue, the thickness of the second material in the direction of the potential gradient exceeding the scintillation distance. The second material may be applied as a ring or helix in addition to or in substitution for part of the profile formed of the first material. The first material may be an aromatic, e.g. phenolic or epoxy resin which may be laminated with glass. The second material may be an aliphatic, e.g. thermoplastic resin particularly polymethyl methacrylate, polyoxymethylene or, preferably, polytetrafluoroethylene.