baber/WOPTO huggingface dataset:
Patent GB-865047-A (GB)
Title: Polymers containing phosphorus and a process for the manufacture thereof
IPC: C08F8/14
Filed: 1957-09-25
Abstract: Phosphorous-containing polymers are prepared by reacting polymers or copolymers of vinyl phosphonic acid dihalides, in which are one or both hydrogens of the CH2= group of the vinyl group may be substituted, with compounds capable of reacting with acid halides. Examples of reactive compounds are water, mono- and poly-hydric alcohols and phenols, alcoholates, hydroxyquinones, mercaptans, mercaptides, thiophenols, enolic compounds, silanols, hydroxypolysiloxanes, aromatic hydrocarbons and halogenated hydrocarbons, ammonia, amines, imines, amides, hydrazines and heterocyclic nitrogen compounds.  The substituents on the vinyl group may be alkyl, cycloalkyl, aryl or aralkyl. Reaction may be effected at temperatures within -50 DEG  to 200 DEG C., in the presence or absence of solvents, e.g. ether, methylene chloride or acetone, and catalysts may be used, e.g. metal oxides, hydroxides and chlorides. The examples describe the reaction between polyvinyl phosphonic acid dichloride and (1) 1, 4-butane diol, (2) glycerol, (3) p-phenylene-diamine, (6) cetyl alcohol; and between (4) a copolymer of styrene, divinylbenzene and vinyl phosphonic acid dichloride, and hot water, the product having cation-exchange properties; (5) a copolymer of vinyl phosphonic acid dichloride and methyl methacrylate, and hot water, the product also having cation-exchange properties.  Specifications 856,818 and 865,046 are referred to.
Patent GB-1350970-A (GB)
Title: Phosphorus containing triazine derivatives processes for their pr'duction and their use
IPC: C08L23/00
Filed: 1971-06-28
Abstract: 1350970 Phosphorus-containing triazine derivatives; chloro-bis-(hydroxyphenoxy)-s-triazine CIBA-GEIGY AG 28 June 1971 [30 June 1970] 30277/71 Headings C2C and C2P [Also in Division C3] The invention comprises triazine derivatives of the general formula wherein A and A<SP>1</SP> are the same or different and each is an optionally substituted phenylene radical which is bound in position 1 to Z or to Z<SP>1</SP> and carries in position 4 an OH group, Z and Z<SP>1</SP> are the same or different and represent a bridging member -O- or -NQ where Q is H or alkyl and R and R<SP>1</SP> are the same or different and each is an optionally substituted alkyl, cycloalkyl or benzene radical. They may be obtained by reacting a compound wherein Hal is a halogen atom with a compound of the formula (OR<SP>11</SP>)P(OR)(OR<SP>1</SP>) wherein R<SP>11</SP> is the same as or different from R and R<SP>1</SP> (which are as defined above) and is an optionally substituted alkyl, cycloalkyl or phenyl radical with a phosphite ester (RO)P(OR)<SP>1</SP>(OR<SP>11</SP>). The reaction can be carried out in an inert solvent but is preferably conducted in the melt, advantageously in an inert atmosphere, e.g. nitrogen. The products are useful as antioxidants especially for polymeric materials. A chloro-triazine derivative of the formula is obtained by reacting cyanuric chloride with 2,6 - di - tert. - butyl hydroquinone in acetone with dropwise addition of an aqueous solution of NaOH to maintain the pH at a value not exceeding 7.
Patent GB-1127993-A (GB)
Title: Process for the production of piperazine derivatives
Inventor: STACHEL ADOLF
IPC: C07D295/088
Filed: 1967-06-30
Abstract: 1,127,993. Piperazine derivatives. CASSELLA FARBWERKE MAINKUR A.G. 30 June, 1967 [2 July, 1966], No. 30330/67. Heading C2C. Novel piperazine derivatives of the general formula and salts thereof, wherein R stands for an alkyl radical having 1 or 2 carbon atoms, R 1  means hydrogen or an alkoxy radical having 1 or 2 carbon atoms, and A 1  and A 2  represent straight or branched chain alkylene radicals containing 1-4 carbon atoms, and A 2  may be substituted by a methoxy radical are obtained (a) by reacting a trialkoxy benzoic acid having the general formula or a functional derivative thereof, with an alcohol having the general formula if desired in the presence of an acid-binding agent, or (b) by condensing a trialkoxy benzoic acid haloalkyl ester having the formula wherein Hal represents a halogen atom, with a piperazine derivative having the general formula if desired in the presence of an acid-binding agent or (c) by reacting an alkali metal salt of a trialkoxy benzoic acid having the general formula with a piperazine derivative of the general formula Pharmaceutical compositions having coronary dilatory activity and containing the above compounds are administered orally or parenterally.
Patent GB-388121-A (GB)
Title: Improvements in draft affecting fittings for the smoke tubes of steam boilers
IPC: F23M9/00
Filed: 1931-11-03
Abstract: 388,121. Baffles for boiler tubes. MARTIN, R. H., Ashmore, Buttermere Gardens, South Shields. Nov. 3, 1931, No. 30392. [Class 51 (i).] An appliance for retarding the flow of gases in boiler tubes consists of a flat plate B inclined downwardlv towards the outlet of the tube and fitting snugly against the top and sides thereof, while a limited free passage C below the lower curved edge of the appliance is provided for the passage of gases into the smokebox. The appliance is provided with a tapered fin D to wedge it in position.
Patent GB-1028579-A (GB)
Title: Cereal puffing machine
IPC: B30B11/22
Filed: 1963-07-31
Abstract: 1,028,579. Puffing cereal products. G. O. GRAVES. July 31, 1963 [Aug. 22, 1962], No. 30436/63. Heading A2Q. A machine for producing a puffed cereal product from a water-moistened cereal meal, such as maize or rice meal, comprises a body 10, Fig. 2, provided with a chamber 32, e.g. in a stator 16, leading into a single extrusion passage 60 through an extrusion head 18, which extrusion passage comprises one or more than one conical inlet portion 76, Figs 7 and 8, leading into a conical portion 86, the smaller end of each portion 76 being smaller than the adjacent larger end of the portion 86. The machine also comprises a passage 62, through which the moistened meal is fed into the chamber 32, e.g. from a hopper 12, and a rotatable screw or auger 30 for forcing the meal through the chamber 32 and the extrusion passage 60, at a pressure high enough to heat the meal, vaporise its moisture and gelatinize starch therein, thus baking the meal. The extruded meal emerging from the passage 60 becomes puffed and solidified and it is then cut into fingers, sticks or collets by a knife 64. Alternative forms of the extrusion passage are described with reference to Figs. 3, 4, 5 and 6 (not shown).
Patent GB-1176724-A (GB)
Title: Inserts for Sliding Joints.
Inventor: MEYER KARL
IPC: E01C7/14
Filed: 1967-07-03
Abstract: 1,176,724. Bearings; lubricating; jointmaking packing. K. MEYER. 3 July, 1967 [4 July, 1966; 24 Sept., 1966; 10 June, 1967], No. 30497/67. Headings F2A and F2B. A bearing for insertion into gaps between associated constructional elements comprises a movable member 2, Fig. 2, and a fixed member 1, both of which are made of plastics material and have their bearing surfaces coated with finely-divided plastics particles. The members 2, 1 are enveloped by means of a resilient member 3, the latter being secured to the fixed member 1 thus allowing the member 2 freedom of movement. The fixed member 1 has a greater surface area than that of the member 2 so as to allow for the possible movements of the latter. In another embodiment, building parts 11, 12, Fig. 3, have resilient bearing members 13, 14, each of which is provided with a hard lining 15 coated with plastics particles. The insert can also be used as a sealing element, for instance, as a flange gasket in piping.
Patent GB-1012172-A (GB)
Title: Improvements in or relating to hearing aids
IPC: G02C11/06
Filed: 1962-08-09
Abstract: 1,012,172. Spectacle frame with hearing aid. SIEMENS-REINIGER-WERKE A.G. Aug. 9, 1962 [April 12, 1962], No. 30564/62. Heading G2J. [Also in Division H4] A spectacle hearing aid consists of an amplifier 24, microphone 14, receiver 18, and battery 42, mounted in cavities formed in the underside of the straight portion and longitudinally through the angled portion of the bow 5 of a pair of spectacles. The transition between the straight portion and the angled portion of bow 5 is solid 22 with a channel 23 drilled through it to act as the sound conduit from receiver 18 to earpiece 11. Battery 42 is mounted on plate 12 pivoted at 13 so that it acts as an on/off switch and can also be removed for replacement. Microphone 14 and receiver 18 are mounted in rubber 15,19 to prevent acoustic interaction. The cavities in the straight portion of bow 5 are closed by plate 32 held in place by screws 31, 33, and has a sound entry aperture 16 for microphone 14.
Patent GB-1217315-A (GB)
Title: Mixing of fluids
Inventor: ROESLER FRANK CORNELIUS
IPC: B01J19/26
Filed: 1967-07-03
Abstract: 1,217,315. Mixing gases. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 May, 1968 [3 July, 1967], No. 30577/67. Heading B1C. [Also in Division F4] Improved mixing of air with the hydrogencontaining gases produced in the primary reforming step in the steam reforming of hydrocarbons is effected by imparting a swirling motion to the air before it is introduced into the hydrogen-containing gases. The air may be swirled by means of helical guide vanes 5 in the air inlet tube 3. The air may be introduced into the mixing chamber 1 coaxially with the hydrogen-containing gases, and a nozzle 6 may be provided at the end of the air inlet tube 3.
Patent GB-189116-A (GB)
Title: Improvements in stay devices for hinged doors and windows
IPC: E05C17/38
Filed: 1922-11-09
Abstract: 189,116. Munslow, A. D. Nov. 19, 1921, [Convention date]. Stays.-A hingedly-mounted door or window is secured in an adjusted position by the engagement of a removable pin with one of a series of holes 15 in a curved stay arm 10 and a hole in a lug projecting from the side of a bracket arm 17. The stay arm has also a recessed track 13 and holes or depressions 14 for engagement with a spring-pressed ball 24 in a casing 21, with the lower walls 13, 20 of which the member 10 is in slidable engagement. The tension of the spring 22 is adjustable so as to vary the frictional resistance of the ball member to the movement of the door or window.
Patent GB-391853-A (GB)
Title: Improvements in or relating to the manufacture of balls or other hollow inflated articles of indiarubber or the like
Filed: 1931-11-05
Abstract: 391,853. Latex; moulding rubber. KAY & CO., Ltd., S. and KAY, W., Elton Fold Mills, Bury. Nov. 5, 1931, Nos. 30693/31 and 17914/32. [Classes 70 and 87 (ii ).] Seamless hollow rubber articles are made by pouring a regulated quantity of a sensitive mix containing an aqueous dispersion of rubber into a non-porous mould, closing the mould and causing the mix to set while rotating the mould about two axes simultaneously. The microporous article is removed from the mould, and dried, when it becomes non-porous. In the case of balls, a plug through which an inflating needle is subsequently inserted may be placed in the mould with the dispersion, and becomes embedded in the wall of the article, where it can be located by feeling by hand. The size of the article can be controlled by inflation before drying and the necessary pressure obtained by inflation after drying, preferably after vulcanization. The vulcanized article may be dipped in a rubber enamel or solvent such as petrol or naphtha, and the surface may then be cold vulcanized. The mix may be such that it sets in the cold or on the application of heat. A suitable mix is 1300 gm. of " Revertex," 150 gm. of zinc carbonate, 30 gm. of sulphur, 10 gm. of zinc diethyl dithiocarbamate, and 415 cc. of water. 380 cc. of a 71 per cent solution of ammonium nitrate causes the mix to set in the cold, with 230 cc. of a 30 per cent. solution, setting takes place quickly at 80-90‹ C. Suitable apparatus comprises a shaft 2, Fig. 2, in bearings in a tank 1 with steam pipe 17. The shaft 2 has radial arms 5 on which are mounted rotatable sockets 6 to which moulds 7 are attached by bayonet joints. The moulds consist of two halves held together by stirrups 15 and clamped by screws 16. Each socket 6 has a square part 10, one face of which bears against the end face of the bearing 12, and prevents undesired rotation of the mould about its own axis, and teeth 11, Fig. 3, which ride on the cylindrical surface of the bearing 12. This latter has a projection 13 in the path of the teeth 11, so that on each rotation of the shaft 2 the mould is rotated through 90 deg. about its own axis, a groove 14 in the member 13 allowing the square portion 10 to turn. In a modification, bevel wheels on the sockets 6 engage a bevelled rack and produce a uniform rotation of the moulds about their axes. Specification 391,511 is referred to.
Patent GB-274705-A (GB)
Title: Improvements in garages or storage buildings
IPC: E04H6/10
Filed: 1926-12-04
Abstract: 274,705. McBride, A. D. Dec. 4, 1926. Garages; warehouses.-A garage is formed with inclined ramps 24 and parking spaces 27 with horizontal floors on each side of the ramps. The ends of the ramps are connected by curves 26 which are inclined inwardly to prevent skidding and the ramps are formed inclining downwardly from the sides to the centre to allow for drainage. The stalls 27 are supported by pillars 23. Offices 13 and a filling station 8 may be provided at the front of the building.
Patent GB-1148057-A (GB)
Title: Process for the purification of p-aminomethyl-benzoic acid
Inventor: SKI HANS-GEORG KAZMIROW
Filed: 1966-07-08
Abstract: 1,148,057. p-Aminomethyl benzoic acid. ARZNEIMITTELWERK DRESDEN, VEB. 8 July, 1966, No. 30811/66. Heading C2C. p-Aminomethyl benzoic acid which has been prepared by the catalytic hydrogenation of pcyanobenzoic acid is purified by separating the catalyst fron the reaction mixture, mixing the resultant mixture with a solution of an alkali metal hydroxide until the pH is at least 12, driving off ammonia with steam, filtering off any precipitate, acidifying the filtrate with a mineral acid to a pH of 2À5-3, filtering off any precipitate, neutralizing the filtrate and separating the precipitate of p-aminomethyl benzoic acid so obtained. The final precipitate may be further purified by reprecipitation or crystallization from water.
Patent GB-1106738-A (GB)
Title: Improvements in or relating to vacuum distillation apparatus
IPC: B01D3/10
Filed: 1966-07-08
Abstract: 1,106,738. Vacuum distillation apparatus. ALLIED CHEMICALS CORPORATION. 8 July, 1966 [19 July, 1965], No. 30871/66. Heading B1B: In a distillation apparatus comprising a fractionation column 1, condenser 3 and distillate-receiver 18, maintained under vacuum by a conduit 10 which leads to a steam jet, a chamber 8 is connected between the steam, jet and the upper part of the condenser, and the base of chamber 8 is joined by a barometric tube 11 to a reservoir 12 containing an inert liquid which has a low vapour pressure and has a lower density than, and is immiscible with, water. Suitable inert liquids are dodecylbenzene, mineral oils, and diphenyl. As shown, chamber 8 is connected' to the condenser via a mist separator 25 in vessel 6. The apparatus is suitable for the distillation of liquids which are sensitive to moisture, e.g. organic isocyanates, acid chlorides and anhydrides. In the event of a sudden failure of the steam. jet, any water entering chamber 8 from the steam jet will be deflected by baffle 9 down through tube 11 into the bottom of reservoir 12. Water accumulated in reservoir 12 will overflow through line 13 into tank 23 which is open to the atmosphere. Conversely, when overloading of condenser 3 forces hot distillate through line 20, this distillate will be deflected by baffle 9 through tube 11 into reservoir 12.
Patent GB-218609-A (GB)
Title: Improvements in or relating to fuel pumps for internal combustion engines
IPC: F02D1/00
Filed: 1923-12-08
Abstract: 218,609. Bolinders Mekaniska Verkstads Aktiebolag, J. & C. G. July 6, 1923, [Convention date]. Cam and lever actuated pumps; stroke, varying. - The plunger 6 is actuated by a cam 3 and lever 4, and the return stroke is controlled by a wedge surface 9 on a sleeve controlled by the governor 8. At a certain speed the surface 9 engages the roller 5 on the lever 4 and moves it away from the cam 3. Specification 123,312 is referred to.
Patent GB-1158978-A (GB)
Title: Semiconductor Devices.
Inventor: MORDECAI FRANK PHILIP
IPC: H01L21/00
Filed: 1968-06-28
Abstract: 1,158,978. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 28 June, 1968, No. 30937/68. Heading H1K. In a method of encapsulating a plurality of semi-conductor elements mounted on conductive pads of a sheet metal lead-frame arrangement, a mould is used which grips each pad in at least two places at its edges so that the lower face of the pad is held against a surface of a cavity in the mould. As shown, the sheet metal lead-frame 3 comprises a plurality of sets of three leads 4, 5, 6 connected by a tie strip 7 and having the centre leads 5 extending to form mounting pads 2 joined by links 8. Each lead 5 is cranked between the pad 2 and the tie strip 7 so that the pad can form one surface of the encapsulation. A transistor die 1 is soldered to each bonding pad and connected to the ends of the other leads 4 and 6 by fine wires 9 by soldering or thermocompression bonding, the ends of leads 4 and 6 being gold plated in the latter case. A self jigging lead-frame of the kind disclosed in Specification 1,149,604 may be utilized, in which case a separate " soldering-in-the-mould " step is included before encapsulation. The mould provides a cavity for each semiconductor device and its mounting pad and comprises a lower part 11 and an upper part 10 arranged so that the links 8 are gripped between them to hold the lower faces of the pads against the surface of the lower mould part 11. The upper mould part 10 is provided with bosses 15 which enter apertures 16 in the pads 2 and contact the surface of the lower mould part 11 to provide a hole through the encapsulation for a mounting bolt or screw. The devices are encapsulated by forcing a thermosetting plastics material into each cavity through channels 17. The assembly is then removed from the mould and the links 8 and tie strip 7 are severed and preferably removed together with other unwanted portions of the lead frame 3.
Patent GB-203958-A (GB)
Title: Improvements in or relating to measuring tapes
IPC: G01B3/10
Filed: 1922-11-14
Abstract: 203,958. Wragg, H. Nov. 14, 1922. Positive-driving bands and pulleys.-A construction of wheel used in a tape measure having a perforated metal tape and indicating by hands moved over a dial comprises a body part b formed with a rim through holes in which headed pins u are pushed from the inside a circular spring v engaging the heads to keep the pins projected.
Patent GB-1152143-A (GB)
Title: Telescopic Boom for a Crane or the like
IPC: B66C23/70
Filed: 1967-07-05
Abstract: 1,152,143. Jib cranes. SARGENT ENG. CORP. 5 July, 1967 [17 Oct., 1966]. No. 31077/67. Heading B8B. A telescopic boom 16, Fig. 2, comprises four tubular sections: a base section 33, a fly section 34 and first and second inner sections 36, 37 respectively. From the retracted position shown in Fig. 3, the fly section 34 may be extended from the second inner section 37 by an hydraulic cylinder assembly 44 including a cylinder 46, pivoted at 48 to the rear end of the first inner section 36, and a piston-rod 47 pinned at 49 to a coupling member 51 slidable within the fly section 34. The coupling member 51 is connected to the fly section 34 by a pull-out pin 99 while the first and second inner sections 36, 37 are connected by an eye-pin 96. Extension of the piston-rod 47 thus extends the fly section 34. The pin 99 is then withdrawn and the piston-rod 47 retracted carrying the coupling member 51 from the dotted line position to the full line position in Fig. 9. The fly section 34, the second inner section 37 and the coupling member 51 are then connected by a pin 105 and the eye-pin 96 withdrawn. The second inner section, with the extended fly section 34, may then be extended by extension of the piston rod 47. A cylinder assembly 38 pivoted at 42 to the base section 33 and at 43 to the first inner section 36 is used to extend the first inner section 36, carrying the second inner section 37 and the fly section 34 with it. As shown, the boom 16 is included in a crane vehicle 15 with hydraulically operated outriggers 18 adjustable laterally of the vehicle frame 17. The boom 16 is luffed by a pair of hydraulic cylinder assemblies 23 and slued on a turn-table 21.
Patent GB-626332-A (GB)
Title: Improvements in or relating to heating with high-frequency electric current
IPC: H05B6/36
Filed: 1946-10-18
Abstract: 626,332. Induction heating. BIRLEC, Ltd., and MAY, E. Oct. 18, 1946, No. 31104. [Class 39(iii)] [Also in Group XXXV] In a method of heating substances by applying high frequency electric power thereto a step-down transformer [see Group XXXV] is used comprising an annular core 2 on which is wound a primary winding 1, and a secondary winding 4 comprising a single turn forming a metallic casing enclosing the core and primary winding.
Patent GB-992635-A (GB)
Title: Polymer dispersions
IPC: C08F2/08
Filed: 1961-08-30
Abstract: Polymer dispersions are made by polymerizing an addition polymerizable monomer charge in a substantially anhydrous liquid hydrocarbon medium in which the resulting polymer is insoluble, the dispersion being stabilized by a polymeric dispersing agent which is a graft copolymer having a first component preferentially soluble in the hydrocarbon medium and, grafted thereon a second component preferentially soluble in the dispersed polymer, the first component being an oxidative degradation product of rubber and which has a viscosity of 1 to 2000 c.p.s. at 25 DEG  C. in a 10 wt. per cent solution in mineral spirits.  Preferred rubbers are crepe rubber, an isobutylene-isoprene copolymer, polyisoprene, and an ethylene/propylene copolymer.  The rubbers may be oxidatively degraded by treatment with ozone, or by heat-treatment in air in the presence of an organic peroxide.  The methods of polymerization are of the type described in Specification 934,038.  The examples describe the preparation of dispersions from monomer charges consisting of:  (1-5) ethyl acrylate, methyl methacrylate and, optionally, acrylic acid, (6) ethyl acrylate, methyl methacrylate, methacrylic acid and vinyl toluene, (7) ethyl acrylate, methyl methacrylate and 2-ethylhexyl acrylate, (8) ethyl acrylate, methyl methacrylate and methacrylamide, (9) butyl acrylate and acrylonitrile, (10) vinyl chloride, and (11) vinyl acetate.  The resulting dispersions are used for coating various substrates. Specification 893,429 also is referred to.ALSO:Surfaces of metal, glass and wood are coated by applying thereto polymer dispersions made by polymerizing monomer in a liquid hydrocarbon in which the resulting polymer is insoluble, and which contains an oxidative degradation product of rubber as the precursor of a dispersing agent formed by graft polymerization with the monomer (see Division C3). The examples describe coating: (1-4) steel surfaces with dispersions of copolymers of methyl methacrylate, ethyl acrylate and, optionally, acrylic acid, (5) glass with a dispersion of a copolymer of methyl methacrylate, ethyl acrylate and acrylic acid, (6) steel with a dispersion of a copolymer of methyl methacrylate, ethyl acrylate, methacrylic acid and vinyl toluene, (7) steel and aluminium with a dispersion of a copolymer of methyl methacrylate, ethyl acrylate and 2-ethylhexyl acrylate, (8) glass, metal and wood with a dispersion of a copolymer of methyl methacrylate, ethyl acrylate and methacrylamide, and (9) copper wire with a dispersion of a copolymer of butyl acrylate and acrylonitrile.  Specifications 893,429 and 934,038 are referred to.