baber/WOPTO huggingface dataset:
Patent GB-734287-A (GB)
Title: A process for the poly-condensation of methylene-, alkylidene-and aralkylidene-bis-halogen carboxylic acid amides
IPC: B03D1/02
Filed: 1952-07-24
Abstract: Polycondensates, suitable for the production of moulded bodies, are made from a methylene-, alkylidene-, or aralkylidene-bis-halegeno carboxylic acid amide of formula: <FORM:0734287/IV (a)/1> (where n is an integer and R is hydrogen or an alkyl or aryl group) by (a) reaction with liquid ammonia to form the mono-amine and heating this amine first under atmospheric pressure in a stream of nitrogen and then under reduced pressure at below 250 DEG  C. also in a stream of nitrogen whereby hydrogen chloride is eliminated; or (b) reaction with liquid ammonia to form the diamine and heating this diamine with a dicarboxylic acid to form a polyamide.  Examples (1), (3) and (4). The mono-amines of methylene-, ethylidene-, and benzylidene-, bis-chloropropionamide are auto-condensed; (2) the diamine of methylene-bis-chloropropionamide is heated with adipic acid in ethanol under reflux.  Specifications 710,468, 715,400 and 734,276, [all in Group IV (b)], are referred to Missing ParagraphALSO:A methylene-, alkylidene-, or aralkylidene bis-halogeno carboxylic amide of formula <FORM:0734287/IV (b)/1> (where n is an integer and R is hydrogen or an alkyl or aryl group) is reacted with liquid ammonia to replace one or both of the halogen atoms by a primary amino group. The monoamine is prepared in an autoclave at a temperature between 0 DEG  C. and room temperature and the diamine is prepared in an autoclave at a temperature below 60 DEG  C.  Examples (1), (3) and (4): The mono-amines of methylene-, ethylidene-, and benzylidene-bis-chloro-propionamide are prepared.  (2) The diamine of methylene-bis-chloropropionamide is prepared. Specifications 710,468, 715,400 and 734,276, which describe the preparation of the starting materials, are referred to.
Patent GB-937261-A (GB)
Title: Method of polymerisation of ªá-methyl styrene
IPC: C08F32/00
Filed: 1961-05-25
Abstract: Poly-alpha-methyl styrene is made by polymerizing alpha-methyl styrene at a temperature lower than room temperature in the presence of a catalyst consisting of an organoaluminium compound of the formula AlRnX3-n where R is an alkyl group, X represents halogen, and n is 1, 2, or 3, or a catalyst obtained by reacting one or more organometallic compounds of metals belonging to Group II and III of the Periodic Table according to Mendel<\>eeff, with one or more compounds of metals belonging to Group IVa, Va, or VIa of the Periodic Table, and/or iron.  The metals of Group II and III are preferably beryllium, zinc, cadmium, and aluminium.  The preferred metal compound is TiCl4.  The catalyst is generally prepared in a hydrocarbon solvent and "aged".  The polymerization is usually effected in an organic solvent such as n-hexane, n-heptane, benzene, toluene, cyclohexane, chloroform, or ethylene dichloride. Poly-alpha-methyl styrene in admixture with polyvinyl formal may be spun into fibres.
Patent GB-1374934-A (GB)
Title: Production of roughened surfaces on synthetic resin substrates
IPC: B05D5/02
Filed: 1973-04-19
Abstract: 1374934 Electrolytic etching aluminium JAPAN CIRCUIT INDUSTRIAL CO Ltd 19 April 1973 [21 April 1972] 18971/73 Heading C7B A resin substrate having roughened surface, for firmly anchoring an electroless plated Cu film in forming printed circuits by the additive method, is produced by laminating an Al foil having irregularities on its surface produced by electrolytic etching and a resin substrate, heating and pressing the laminate, then removing the Al foil by chemical etching. Electrolytic etching may be carried out . in an aqueous solution containing chloride, e.g. 0.5 - 5% HCl or NaCl with or without acetic/ sulphuric acid, at 50 -80C and C.D. 10-200 A/dm<SP>2</SP>, to produce irregularities 1-10 Á deep. The foil may be first dipped in an aqueous solution of alkali e.g. Na 2  CO 3  or NaOH or acid e.g. HCl to roughen the surface. Similar solutions may be used for chemical etching. The resin may be thermoplastic, e.g. ABS, polycarbonate, polyphenylene oxide, polysulphone or polyolefine resin, or thermosetting, e.g. epoxy, phenolic or unsaturated polyster resin, preferably reinforced with glass cloth, paper, non-woven fabric, asbestos or polyester fibres. The Al foil may contain Fe, Cu and Si impurities.
Patent GB-143757-A (GB)
Title: Improvements in connection with propellants for use in ordnance
IPC: F42B5/38
Filed: 1919-07-31
Abstract: 143,757. Beardmore & Co., W., and Bremberg, A. July 31, 1919. Gun cartridges.-Relates to propellants such as cordite in the form of tubes in which the ratio of the external to the internal diameter is from 3¢: 2¢ to 2 : 1, and consists in making the tubes of length from 15 to 25 times their internal diameter.
Patent GB-681047-A (GB)
Title: Improvements in, or relating to, roof or like glazing
IPC: E04D3/08
Filed: 1950-07-29
Abstract: 681,047. Glazing. HILL, A. B. July 30, 1951 [July 29, 1950], No. 18985/50. Class 20(iii) In a roof having a glazed portion with slanting glazing bars 3 supporting the glass 5, a waterproofing strip 9 at the tops of the bars is provided with an uninterrupted flange 10 engaged in end slots 11 formed longitudinally in the webs of the bars, the strip having also a stem 16 projecting upwardly outside the ends of the bars. An angle-section member 17 having one limb 17a anchored to the purlin 1 and the other 17b interposed between the stem 16 and the bars, may be associated with the strip, or the stems of the latter may be extended upwardly and rearwardly, in lieu of the member 17, and besecured to the purlin. The stem of the strip may also be extended downwardly and forwardly, the lower forward extension supporting the upper ends of the bars and rendering the angle-iron 20 unneccessary.
Patent GB-201907-A (GB)
Title: An electro-centrifugal separator
IPC: B04B5/00
Filed: 1923-07-24
Abstract: 201,907. Marx, A. Aug. 3, 1922, [Convention date]. Oils, purifying.-Oils are purified by combined electric cataphoresis and centrifugal force. A rotary drum 1 mounted on a shaft 3 has internal radial vanes 2, the drum and vanes being provided with insulating packing 8 - - 10. The drum 1 is connected to one pole of an electric source, while a rotary or fixed cylinder 6 suspended therein is connected to the other pole. The fluid to be treated enters continuously by a pipe 12 and fills the annular space between the drum 1 and the cylinder 6. The impurities are deposited on the drum or the cylinder. The purified fluid is discharged from the top of the drum.
Patent GB-512182-A (GB)
Title: Improvements in the manufacture and production of oxidation products of olefine glycols
IPC: C07C29/66
Filed: 1938-06-27
Abstract: 512,182. Potyhydric alcohols. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.). June 27, 1938, No. 19023. [Class 2 (iii)] Aliphatic polyhydroxy compounds containing at least three hydroxy groups, are made by treating 1 : 4-dihydroxy-butylene-2 or its substitution products, such as 1 :4-dihydroxy- 2 : 4-dimethyl- or 1 : 1 : 4 : 4-tetramethyl-butylene-2, in the liquid phase with oxidizing agents, e.g., per-acids and their salts, hypohalous acids and their salts, or chlorine in the presence of water or alkalis. Catalysts, e.g., osmium tetroxide, may also be used. When hypohalous acids are used, trihydroxy compounds containing one halogen atom are first formed ; these are hydrolyzed to tetrahydroxy compounds. In examples (1) cis-1 : 4- dihydroxy-butylene-2 is oxidized to erythritol with (a) potassium permanganate, (b) hydrogen peroxide and (c) sodium persulphate ; (2) chlorine is passed into a solution of 1 : 4 dihydroxy-butylene-2 in sodium carbonate, and the erythritol-2-chlorhydrin is hydrolyzed to erythritol. The dibenzol derivatives of the products are described. Specification 508,543 is referred to.
Patent GB-531199-A (GB)
Title: Improvements in and relating to a process and means for moulding pre-cast reinforced-concrete beams
IPC: B28B7/00
Filed: 1939-06-28
Abstract: 531,199. Reinforced-concrete beams. GEAIRNS, A. J. E. June 28, 1939, No. 19058. [Class 20 (iv)] A reinforced-concrete beam 1, of I-crosssection, is provided with a reinforcing structure which includes a metal plate 4 disposed on the exterior face of the upper-flange 2, such plate being arranged, during the operation of moulding the beam, to engage the walls of the mould whereby the reinforcing structure is supported in its correct position. The reinforcing structure comprises a rod 6 which is held by stirrups 5 secured to the underside of the plate 4. The metal plate 4, with the attached stirrups 5 and rod 6, is disposed in a two-part mould 8, 9 as shown in Fig. 2, the mould being provided with recesses 10 to receive the plate 4. The mould may be shaken to consolidate the concrete.
Patent GB-647028-A (GB)
Title: An improved apparatus for testing the boost-control unit of carburetters for supercharged internal combustion engines
Inventor: PEDERICK HAROLD
IPC: F02M19/01
Filed: 1948-07-15
Abstract: 647,028. Regulating. BRISTOL AEROPLANE CO., Ltd. July 15, 1948, No. 19066. [Class 7(vi)] An apparatus for checking whether a boost control unit 1 maintains a selected supercharge pressure comprises a chamber 9 with a compressed air pipe 10 leading to a valve 12 connected at 15 for rotation by the throttle valve 5 and delivering to an adjustable bleed outlet 17, the rotation of the valve 12 adjusting the pressure downstream thereof, the pressure being transmitted through a pipe 11 to the boost control 1, so that for any throttle setting it is equal to the supercharge pressure which would be obtained at that setting when in operation with an engine. 'The thottle valve 5 is moved by a servomotor 4 controlled by a valve 3 actuated by a pressure-responsive capsule 2 normally subject to the engine supercharge pressure, the capsule datum being adjusted by a throttle control lever 8. For a test the valve 12 is coupled to the throttle valve spindle and the lever 8 is moved to select a certain supercharge pressure. The valve 5 is thereby rotated to a certain position and the pressure in chamber 1 is adjusted by the valve 12 to be equal to the supercharge pressure corresponding to the said throttle valve position. If the boost control unit is operating correctly, the angular position of the valve 5, indicated by the pointer 16, will remain constant at the value set by the lever 8.
Patent GB-684661-A (GB)
Title: Coated fabrics suitable for use as diaphragms in fuel pumps
IPC: F02M59/14
Filed: 1948-02-24
Abstract: 684,661. Coated fabrics. CARTER CARBURETTOR CORPORATION. Feb. 24, 1948. [Dec. 9, 1946] No. 19102/51. Divided out of 684,598. Class 140. A coated fabric suitable for fuel pump diaphragms comprises a tough, closely woven fabric, e.g. a chafer duck with a weave of 20 threads per inch, with a surface layer of synthetic rubber, e.g. butadiene-acrylonitrile copolymer, on each side, the two layers being bonded by integral projections forced into and extending through the interstices of the fabric and the individual threads of the fabric not being impregnated. Specifications 522,648, 549,902, 580,883, 602,173, and 37682/38 (as open to inspection under Sect. 91 are referred to.
Patent GB-234038-A (GB)
Title: Improvements in extra high tension junction boxes for multi-core electrical cables
IPC: H02G15/115
Filed: 1924-08-12
Abstract: 234,038. Forges et Ateliers de Constructions Electriques de Jeumont, Soc. Anon. May 13, 1924, [Convention date]. Earth-continuity couplings.-Extra high tension cables with multiple cores have each core jointed in a separate box and all are 'secured between shells, in which the cores are divided, to form a unitary structure. The invention is applicable to cables in which each core has a metallic sheath and comprises means to maintain the conducting continuity of such sheaths. The shells a have removable covers a<1> and cable grips b, one of each pair of the latter forming part of the cover, and are closed by bronze plates c. The separated cores pass through the plates c into separate longitudinally divided junction boxes d of bronze which are secured between the plates by screws. A ribbon of soft alloy is wrapped about each core sheath at e to make connection with the junction box. Steel distance-pieces g ensure the rigidity and parallelism of the structure. The parts a, d are provided with filling openings and covers a, f respectively. The junction boxes may be arranged in a horizontal plane.
Patent GB-1402983-A (GB)
Title: Motor vehicle windscreen and headlamp washer systems
IPC: B60S1/60
Filed: 1974-05-02
Abstract: 1402983 Vehicle windscreen and head-lamp cleaning systems GENERAL MOTORS CORP 2 May 1974 [2 May 1973] 19221/74 Heading A4F In a vehicle windscreen and head-lamp cleaning system a pump 2 delivers washing liquid from a container to conduits connected to nozzles for washing the windscreen and the head-lamp lenses, respectively, and an electromagnetic valve 7, having an inlet to receive pumped liquid and at  least two outlets respectively connected to the head-lamp washing nozzles, is connected in an electric circuit including the head-lamps 20, a windscreen wiper motor 26 and a head-lamp wiper motor 27 so that the outlets are opened only when both the head-lamp wiper system and the vehicle head-lamps are switched on. Closure of light switch 21 energizes the head-lamps 20 and a relay 22 to close contacts 22a, 22b in series with the head-lamp wiper motor 27 and the electro-  magnetic valve 7. Thus when a switch 25 is closed to energize the windscreen wiper motor 26 and the pump 2 the valve 7 and the motor 27 are energized via a contact 25a to provide head-lamp washing and wiping.
Patent GB-320323-A (GB)
Title: Improvements in methods and apparatus for producing mixtures of liquids and gases
IPC: F02M19/00
Filed: 1928-07-03
Abstract: 320,323. Chambers, E. T. July 3, 1928. Mixing fluids in flow.- Liquids are fed into gaseous fluids in motion through an inverted capillary nozzle, the head of liquid above the nozzle being made less than that required to balance the capillary and surface tension effects by a considerable margin. The method is generally applicable, but the particular applications mentioned are carburetting-apparatus, oil fuel vaporizers or atomizers and blow lamps. A carburettor based on this method comprises a float chamber 2 supplying fuel to a chamber 20 surrounding a sleeve 4 which carries the fuel nozzle and is mounted on the air intake conduit 5. The fuel nozzle comprises either a series of capillary passages or an annular capillary passage 9 formed between a sleeve 6 and an inner member 7, the lower ends of the parts 6, 7 being made thin or knife edged. The member 7 is provided with a fuel controlling restriction 10 forming part of a larger fuel inlet passage 16 and opening into an annular passage 11 communicating with the passage 9. Preferably the upper edges of the sleeve 6 and member 7 are above the fuel level 3, and a siphon cap 12 is provided dipping into the fuel. The area of capillary passage 9 is greater than that of the restriction 10, and its dimensions and the shape of the lower edges of the parts 6, 7 are such that the head necessary to overcome the capillary and surface tension effects is considerably greater than the distance of the fuel level above the lower edge of the nozzle. The fuel nozzle is situated above the top of the intake passage 5 and the outlet is provided with a baffle 15 open on the engine side only. A butterfly throttle 13 is provided and may be formed with two orifices, which may be adjustable, one adjacent the baffle 15 and one remote therefrom, rich mixture and air being respectively supplied through these orifices for slow-running when the throttle is closed. When applied to an oil fuel vaporizer or atomizer, air under pressure is supplied by a blower to an apparatus as described above, the top of the fuel tank and float chamber being connected to the conduit 5 between the blower and the throttle valve. When applied to a blow lamp, the compressed air may pass through a valve of definite proportions and weight and part of the air on the supply side of this valve may be led to the float chamber.
Patent GB-765806-A (GB)
Title: Vacuum tube mounting
IPC: H01J5/12
Filed: 1954-07-01
Abstract: 765,806. Discharge apparatus. BENDIX AVIATION CORPORATION. July 1, 1954 [July 23, 1953], No. 19349/54. Class 39(1). A mounting for a vacuum tube 18 comprises supports 10 located within a metal enclosure 31, and a phosphor bronze casing 13 for the tube resiliently engaging at its ends, which are provided with spring fingers 20, a metal casing 14 mounted on the supports 10, the metal casing 13 having a fin 21 with curved ends 23 extending through a slot 22 in the outer casings 14, 17, into heat transferring contact with the metal enclosure 31. A printed circuit 25 is printed on a sheet of insulation 26 carried by studs 27a on, but spaced from, a support 10. Leads 27 from the tube 18 extend through holes 28 in sheet 26 and apertures 29 formed in terminal portions of the printed circuit 25. Surrounding the holes 28, the leads 27 being connected to the circuit by dip-soldering. Other circuit elements such as condensers and resistors may be similarly mounted.
Patent GB-335574-A (GB)
Title: Improvements in and relating to coin detecting mechanism for automatic vending machines
Filed: 1929-06-24
Abstract: 335,574. Wistoft, S. June 24, 1929. Testing coins.-In coin detecting mechanism for coin - freed apparatus which can distinguish between flanged and unflanged coins, a coin dropping down a shoot 1, after its momentum is checeked by an abutment 7, is caught between the points 14 of a p.air of resilient spring fingers 13, and is partially supported by the extremity of a pivoted stop 9, which can rock in a clockwise direction only from its normal horizontal position. An unflanged coin is not stopped by the spring fingers and drops down a shoot 18, while a flanged coin swings about the points 14 and engages the sloping underside of the, stop 9 which tilts upwardly to allow the coin to swing still further and be projected into a shoot 17. The stop 9 then returns by gravity. The shoots 17, 18 form a duplex channel pivoted at 19 and adjustable in position by a pin-and-slot connection 20, 21. The tension of the springs 13 is adjustable by arms 15, the pressure of which on the springs is regulated by pins 16. Specification, 351,831, [Group XXXIV], is referred to.
Patent GB-1423198-A (GB)
Title: Artificial tooth implant device
IPC: A61C8/00
Filed: 1973-04-24
Abstract: 1423198 Artificial tooth implant J M G M JUILLET 24 April 1973 [12 June 1972] 19422/ 73 Heading A5R An endoperiosteal tooth implant comprises an apertured plate 2 having on one of its faces at least one part 3, extending perpendicular to the plate, for attaching a tooth. The width of the plate is less than that of the jaw bone which is provided with a slot 7 for receiving the plate and a second slot 8 for accommodating the post which in use protrudes above the bone and engages the tooth by a complementary hole in its gingival end. The hole in the tooth and the post are preferably angular in cross section, e.g. square, the tooth being attached by a cement. A member 5 may be provided for screwing into a threaded hole in the post. The tooth being attached to a plain part 5b which may be bent as required. If the slot 7 is made wider than the thickness of the anchor plate the edges of the latter may be deformed out of the plane of the plate to obtain a close fit between the implant and bone which grows through the openings 2a. The plate 2 may have curved edges and may be bent in its plane to match the curve of the jaw aided by a notch (11) Fig. 7 (not shown) on the concave edge. A further embodiment employs a V shaped anchor plate Fig. 5 (not shown) having a flat at the apex (4) on which a post 3 is formed. Several of the same or differing lengths may be formed on a single anchor plate.
Patent GB-121597-A (GB)
Title: Reversible Power Transmission Device for Steam and Gas Turbines.
IPC: B63H23/00
Filed: 1918-11-27
Abstract: 121,597. Svenska Turbinfabriks Aktiebolaget Ljungstr÷m. Dec. 21, 1917, [Convention date] Oppositely - running rotor type; reversing; draving and transmission mechanism, special applications of.-In a turbine 1 having oppositely - running rotors geared in the usual manner to an intermediate shaft 10, which drives a propeller shaft 2 through toothed reduction gearing 4, 3, the toothed reversing gear 7 is arranged on the intermediate shaft, which has a comparatively high speed of rotation and a small turning moment. The Specification as open to inspection under Sect. 91 (3) (a) comprises an arrangement of the reversing gear 7 directly between the shaft of a steam or gas turbine and the pinion shaft of the reduction gearing. This subject-matter does not appear in the Specification as accepted.
Patent GB-709948-A (GB)
Title: Protective coverings for metal or other surfaces
Inventor: FENDER HAROLD WILLIAM
IPC: B29C65/48
Filed: 1951-08-21
Abstract: 709,948. Protective coverings for surfaces. PRODORITE, Ltd. Aug. 5, 1952 [Aug. 21, 1951], No. 19662/51. Class 93 A protective covering of plastic material in thin sheet form for a metal or other surface, consists of any arrangement of covering pieces, attached to the surfaces by adhesive, in which adjacent parts overlap, an incision being formed in the overlapping parts so that it penetrates both parts, and a sealing medium being inserted in the incision and secured by heating. A surface a, Fig. 1, is covered by thin sheets of plastic material b, such as polyvinyl chloride, which are attached to surface a by adhesive and have adjacent edge portions overlapping and also adhered together. An incision of vee- or other cross-section is formed along the overlapping parts, in which is inserted a sealing cord c of similar material and this is secured by heating. For covering a corner a strip d, Fig. 2, is placed along the corner, and edge portions of adjacent strip b are placed over strip d with their edges in contact. An incision is made along the corner and an insert c is sealed therein. The inner surfaces of a rectangular tank are covered by fixing corner strips and side sheets as above described, the side sheets being turned inwards at the lower edges to cover the angles between the sides and base of the tank. The base is covered with a sheet which overlaps the inturned parts of the side sheets, incisions being made along the overlap and filled by sealing cord. Surfaces of concrete, screeded brickwork, or other materials having a smooth surface to which the coating material can be adhered, may also be covered in this way.