baber/WOPTO huggingface dataset:
Patent GB-1079451-A (GB)
Title: Arrangement for reproducing two images
IPC: G02B23/12
Filed: 1960-11-15
Abstract: 1,079,451. Television. ELTRO G.m.b.H. March 15, 1960 [Nov. 16, 1959], No. 39260/60. Heading H4F. Apparatus for producing two real images of an object corresponding to two different wavelength ranges comprises a mirror 16 focusing the light rays 24 from the object at a point 25, the reflected rays being intercepted by a partly transparent mirror 18 whereby rays 30 of a shorter wavelength are reflected and arrive at the point 32 whereas rays 28 of a longer wavelength are transmitted and arrive at the point 26. Transducers 20, 22, e.g. television cameras or arrays of photo-electric cells, convert the light into electric signals and are coupled via lines 34, 36 to a viewing device 38, the two images being viewed concurrently. Alternatively, a double-throw switch 40 may be provided and the images viewed alternately. The apparatus is suitable for the detection of objects camouflaged against infra-red sighting techniques, the rays 28 being in the infra-red range and the rays 30 being in the visible range.
Patent GB-1456713-A (GB)
Title: Texturizing size and glass fibres coated with same
IPC: D06M13/463
Filed: 1974-09-09
Abstract: 1456713 Size for glass fibres OWENSCORNING FIBERGLAS CORP 9 Sept 1974 [19 Oct 1973] 39287/74 Heading C3U [Also in Division D1] A size for glass fibres comprises a cationic starch derivative of a tertiary amine together with a cationic lubricant which is substantially devoid of primary amino groups. The cationic starch derivative preferably contains the cation: where R 1 , R 2  and R 3  are each alkyl, substituted alkyl, alkene, aryl and aralkyl groups and wherein R 1 , R 2  and R 3  together have a total of not more than 22 carbon atoms. The preferred cationic lubricant is bis-[beta-3-(2-heptadecylimidazolyl)ethyl]amine: and the composition may optionally include a nonionic lubricant, a nonionic lubricant emulsifier and a humectant, the nonionic lubricant preferably being an animal, vegetable or mineral wax or gelled oil which is a non-liquid at room temperature.
Patent GB-1171329-A (GB)
Title: Escalators
IPC: B66B21/08
Filed: 1967-08-25
Abstract: 1,171,329. Escalators. HITACHI Ltd. 25 Aug., 1967 [31 Aug., 1966; 16 Sept., 1966; 28 Dec., 1966 (2); 11 Jan., 1967; 20 Jan., 1967 (2); 30 June, 1967], No. 39303/67. Heading B8A. [Also in Division B7] An escalator, wherein both the ascending and descending runs, disposed in side-by-side relation, are adapted to convey passengers comprises a plurality of treadboard elements 4 pivotally attached to an endless chain drive member 5 and guided in a semicircular section 3, 3<SP>1</SP> between the respective ends of the ascending and descending runs in such a way that the trailing edge of the elements in one run becomes the leading edge of the elements in the other run. The endless chain 5 extends around the inside of the escalator path and has pairs of lugs 40a, 40b, 41a, 41b to which are pivotally attached one end of arms 23, 24. The other end of the arm 24 is attached to arm 23 which in turn is attached to a universal joint 25 suspended by a member 22 below the treadboard elements. An extension 32 of the arm 23 mounts a roller 31 in engagement with a guideway 33 and an angled extension 28 of the member 22 mounts a roller 27 in engagement with a guideway 26. The extension 28 is fixed relative to the treadboard elements whereby on passage around the semicircular sections said elements are maintained facing the same direction. Additional guides 75, 76 are engaged by lugs 39 on the treadboard elements to assist in guidance around the semicircular section and further rollers 17, 18 mounted on said elements engage guideways 19, 20 and thereby support said elements when under load during the ascending and descending runs. The lower driven sprocket 16 is mounted on a carriage (82), Fig. 11 (not shown), along with the lower semicircular guideways, said carriage (82) has wheels (84), (84<SP>1</SP>) and is biased by a spring (77) in an outward direction to exert a tension in said endless chain. In an alternative embodiment, Figs. 14, 16, 17 (not shown), a pair of spaced chains (109), (110) are situated beneath the treadboard elements (100) and have dogs (108) extending therebetween for engagement with a slot (105) in the underside of the elements. The elements have rollers (101), (102) for engagement with rails (107), (108) to support the same and further rollers (103), (104) for engagement with guides (147a, 147b, 147c, 147d) during their passage around the semicircular sections. An arm (136) driven in synchronization with the endless chains has rollers (136<SP>1</SP>) located at the ends thereof to engage the slot (105) and move said elements around said semicircular section in a manner in which their directional position is unchanged.
Patent GB-1275978-A (GB)
Title: Aquarium air stone ornament
IPC: A01K63/04
Filed: 1969-08-07
Abstract: 1275978 Aquarium aerating device AQUARIUMS Inc 7 Aug 1969 [7 Oct 1968] 39618/69 Heading A1A A porous air stone device for aerating aquaria comprises a double membered connector 14 with peripheral flange 14c whose lower surface is adhesively fixed to the top surface of porous stone member 16 having a cavity 16b to receive tapered lower member 14b of connector 14. A connection to an air pump is attached to member 14a and the air stream passes through conical bore 14d, into cavity c and becomes broken up in, and exits as bubbles from, stone member 16.
Patent GB-1397320-A (GB)
Title: Electrical contact materials
IPC: C22C5/06
Filed: 1972-08-25
Abstract: 1397320 Silver-base materials SQUARE D CO 30 July 1973 [25 Aug 1972] 39666/72 Headings C7A and C7D An electrical contact material consists, by weight, of:- of:- not more than 3% mercury; optionally not more than 3% tellurium and, when tellurium is present as an oxide, additionally 2.5 to 20% cadmium oxide the balance being silver. The following processes for the production of the material are described:- (i) adding a silver-mercury master alloy to molten silver under an inert atmosphere, and casting into an ingot; (ii) mixing silver and tellurium powders, melting under inert atmosphere, adding silvermercury master alloy and casting; (iii) mixing silver, cadmium oxide, mercuric oxide and cadmium-tellurium compound powders, heating in a reducing atmosphere to produce silvercadmium mercury alloy having a fine dispersion of cadmium telluride particles over the Ag-Cd-Hg alloy, internally oxidizing the material, compacting and sintering within a sealed enclosure to provide Ag-Hg alloy with cadmium oxide and tellurium oxide dispersed through the alloy.
Patent GB-857334-A (GB)
Title: Chromium complexes of fluorocarbon acids and articles coated therewith
IPC: D06M13/438
Filed: 1956-12-31
Abstract: A chlorine containing chromium co-ordination complex of an acid of the formula Rf.  SO2.N (R1).R.COOH where Rf is a perfluoroalkyl group of 4 to 12 carbon atoms, R1 is hydrogen or an alkyl group of 1 to 6 carbon atoms and R is an alkylene bridging group of 1 to 12 carbon atoms, having a chromium to acid mole ratio of 2:1 to 20:1 and which is prepared by treating the acid with chromic chloride in an anhydrous solvent, is dissolved in water and the solution applied to the surface of a hydrophilic material.  On drying the complex becomes hydrolysed (chlorine atoms being replaced by hydroxyl groups) and the hydrolysed complex may be polymerized by heating at 250 DEG F. for 2 minutes. Specifications 758,467 and 857,335 are referred to.ALSO:The invention comprises a green, water soluble, chlorine containing chromium co-ordination complex of a perfluoroalkylsulphonamido alkylenemono-carboxylic acid having the formula: <FORM:0857334/IV(b)/1> where RF is a perfluoroalkyl group containing 4 to 12 carbon atoms, R is an alkylene bridging group containing 1 to 12 carbon atoms and R1 is hydrogen or an alkyl group containing 1 to 6 carbon atoms, these complexes having a chromium to acid mole ratio of 2 : 1 to 20 : 1 and being capable of hydrolysis and polymerisation to provide insoluble coatings that are both hydrophobic and oleophobic.  The complexes may be prepared by reacting the acid with chromic chloride in an anhydrous solvent. The chromic chloride may be formed in situ by reducing chromyl chloride.  Suitable reducing agents are alcohols which may also be used as solvent and isopropanol is preferred.  The chromyl chloride may be added in an inert volatile solvent such as carbon tetrachloride.  The product may be isolated in the solid form but it is more conveniently isolated as a concentrated solution in a solvent, e.g. isopropanol.  The complex solutions may be stabilized by the addition of a small amount of water.  These complexes may be used to coat surfaces which then become both oil and water repellent and if an aqueous mixture of the solvent is dried on a surface the complex hydrolyses, i.e. the chlorine groups of the complex are replaced by hydroxyl groups.  If this hydrolysed complex is heated, e.g. 250 DEG  F. for 2 minutes, it polymerises to give an insoluble compound that is both hydrophobic and oleophobic.  In examples (1) N-ethyl-N-perfluorooctanesulphonyl glycine is heated with chromyl chloride/carbon tetrachloride mixture in isopropanol solution. The volatile impurities are distilled off and a small amount of water added to give a stabilized concentrated solution of the complex.  N-perfluoro-octanesulphonyl glycine, N - perfluoro-octanesulphonyl - beta - aminopropionic acid, and N-perfluoropentanesulphonyl glycine are similarly complexed. Specifications 758,467 and 857,335 are referred to.
Patent GB-1282050-A (GB)
Title: Percussive tool having a protective handle
IPC: B25D3/00
Filed: 1969-08-08
Abstract: 1282050 Handles; percussive tools ETS J MULLER SA 8 Aug 1969 [8 Aug 1968] 39863/69 Headings B4B B4C and B4K A handle 4 in combination with a percussive tool, 1, e.g. chisel, star drill, or stone cutting pincers wherein the handle is formed of an elastic material e.g. rubber, and is fixed to the tool by a liquid material 15 which is ejected through holes 14 and which sets but remains flexible. The handle has a circular flange 6 and portion 5 can be grooved.
Patent GB-343670-A (GB)
IPC: G04C15/00
Filed: 1929-12-31
Abstract: 343,670. Electric clocks. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl Ufer, Berlin. Dec. 31, 1929, No. 39873. Convention date, Aug. 13. Addition to 343,252. [Class 139.] The sun-and-planet wheel arrangement used in the parent Specification for coupling the constantly running auxiliary movement to the hands only when the current ceases in the motor, is replaced in the present invention by a coupling wheel which is mounted so as to be brought into engagement with the auxiliary movement under the magnetic control of the motor. The motor a drives the hands-shaft k through gearing b, c, g, d (mounted on g), and e. A bush h free on shaft k carries wheels f and i, of which the latter is geared, through wheels u<1>, u, and n<1>, to a coupling wheel n on a bell crank o<2>, o. The latter carries a magnet armature so that as long as current is passing the motor keeps the parts in the position shown against spring p, a nose s locking the wheel n. The auxiliary movement thus runs idly. When the current fails spring p pulls n into engagement with r and the auxiliary movement drives.the hands through gears r, n, u, i, f, d, and e. In a modification the bell crank carrying the coupling wheel is controlled by an electromagnet in series or parallel with the motor.
Patent GB-1060463-A (GB)
Title: 5-aryl-3-carboxyacyloxy-2h-1,4-benzodiazepin-2-ones and their production
IPC: C07D243/26
Filed: 1963-10-10
Abstract: Compounds of the general formula <FORM:1060463/C2/1> (wherein X represents a hydrogen, chlorine or bromine atom or a nitro, trifluoromethyl or methylsulphonyl group, R represents a hydrogen atom or a C1- 8 hydrocarbon group, Ar represents a thienyl group, or a phenyl group optionally substituted by a chlorine or fluorine atom or a methyl, methoxy or trifluoromethyl group, Z represents an alkylene, alkenylene or arylene radical of up to 8 carbon atoms optionally substituted by up to 4 further -COOM groups, n is 0 or 1 and M represents a hydrogen atom or the cation of an alkali metal, ammonium or amine salt) are prepared by (a) esterifying or transesterifying a compound of the formula <FORM:1060463/C2/2> (wherein R1 represents a hydrogen atom or a monocarboxylic acyl residue) with an appropriate polycarboxylic acid acylating agent (where a polycarboxylic acid halide is used the initial product is hydrolysed), (b) reacting a compound of the formula <FORM:1060463/C2/3> with a salt of the appropriate polycarboxylic acid or (c) reacting a compound of the formula <FORM:1060463/C2/4> with a polycarboxylic acid halide, hydrolysing the product and separating the required compound from the reaction mixture, optionally followed in each case by salt formation or conversion of a salt to the free acid.  Some of the compounds of the invention are anticonvulsants and muscle relaxants, some are sedatives, some are tranquillizers without being sedatives and some have disinhibiting effects.  They may be administered (e.g. by injection) in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1006889-A (GB)
Title: Water-insoluble monoazo dyestuffs and process for their manufacture
IPC: C07D231/46
Filed: 1963-10-10
Abstract: The invention comprises monoazo dyes free from acid groups imparting stability in water of the formula <FORM:1006889/C4-C5/1> in which A represents an aryl residue, B an arylene residue, X an unsubstituted or substituted alkyl or aryl group, R an alkyl group with at most 6 carbon atoms, m=1, 2 or 3, z=1 or 2, wherein m must have at least the same value as z and "alk" represents an alkylene residue with at most 6 carbon atoms. The dyes are prepared by conventional diazotization, coupling and/or esterification procedures. In examples, 4-aminobenzoic acid benzyl ester is diazotized and coupled with 1-(b -ethanoyl-oxyethyl) - 3 - methyl - pyrazolone - 5 to obtain a yellow dye (1) and the same dye is obtained by reacting the acid chloride prepared from the dye obtained by coupling diazotized 4-amino-benzoic acid with 1-phenyl-3-methyl-pyrazolone-5, with benzyl alcohol (4). Many additional starting materials are listed.  The dyes are suitable for dyeing and printing cellulose esters and ethers, polyamides, polyurethanes, polyvinyl chloride and fibres of polyesters, e.g. polyethylene terephthalates.
Patent GB-865248-A (GB)
Title: Process for the polymerisation of olefines
IPC: C08F10/00
Filed: 1957-12-30
Abstract: One or more olefines each containing up to 8 carbon atoms are polymerized with the aid of a catalyst comprising a compound of an element of sub-group III(a) of the Mendeleeff Periodic Table and of atomic number 21 to 71, and a finely divided metal, or metal hydride, or an organo-metallic compound of an alkali metal, an alkaline earth metal, or Al, Sc, Y, La, Zn, or Cd.  The first mentioned compound may be a halide of a rare earth metal e.g. cerium chloride, praseodymium chloride, neodymium chloride, lanthanum chloride, and mixtures or an organic compound of a rare earth metal such as cerium acetyl-acetonate.  The olefine may be ethylene, propylene, butene-1, hexene-1, octene-1, styrene, 3-methylbutene-1, butadiene, or isoprene, or mixtures thereof. Other catalyst components mentioned are Na, Ca, Al, Zn, NaH, CaH2, L1AlH4, Na-phenyl, Zn (C2H5)2, or Al(C2H5)3, Cl. The catalyst may be made in the absence or presence of an organic solvent by grinding the components together e.g. in a ball mill. The polymerization may be effected in bulk or in the presence of an organic solvent or diluent, and the polymerization may be controlled by the addition of a small amount of oxygen or hydrogen. The polymer may be purified with 2N-hydrochloric acid. The polymerization may be effected in a silver or steel autoclave.ALSO:A catalyst for polymerizing olefines comprises (1) a compound of an element of sub-Group IIIa of the Mendeleeff Periodic Table and of atomic number 21 to 71, and (2) a hydride or an organo-metallic compound of an alkali metal or of an alkaline earth metal or of Al, Sc, Y, La, Zn, or Co, or any of these metals themselves.  Compound (1) may be a halide of a rare metal, e.g. cerium chloride, praseodymium chloride, neodymium chloride, lanthanium chloride, and mixtures thereof or an organic compound of a rare earth metal such as cerium acetylacetonate.  Component (2) of the catalyst may be Na, Ca, Al, Zn, NaH, CaH2, LiAlH4, Na-phenyl, Zn(C2H5)2, Al(C2H5)3 or Al (C2H5)2Cl. p  The catalyst may be prepared in the absence or presence of an organic solvent by grinding the components together, e.g. in a ball mill.  Specified solvents are butane, n-heptane, refined hydrogenated petroleum, cyclohexane, methyl cyclohexane, benzene, xylene, or tetrahydronaphthalene.
Patent GB-1206166-A (GB)
Title: Oxidation of olefins
Inventor: ALLISON KENNETH
IPC: C07D303/04
Filed: 1967-09-04
Abstract: 1,206,166. Oxidation of olefins. BRITISH PETROLEUM CO. Ltd. 16 Aug., 1968 [4 Sept., 1967], No. 40337/67. Heading C2C. Olefins are oxidized with a free oxygen containing gas in the presence of a catalyst which comprises a complex of a metal of Group VIII of the Mendeleef Periodic Table which is capable of forming reversibly an adduct with oxygen. The catalyst complex preferably contains monovalent rhodium or indium, and these complexes are preferably stabilized by ligands which are compounds of nitrogen, phosphorus or arsenic that are relatively resistant to oxidation. The process is preferably carried out between 20‹ and 120‹ C. and at a pressure between atmospheric and 1500 p.s.i.g. The reaction may be carried out in an inert solvent. The feed olefin preferably contains 2 to 20 carbon atoms per molecule. The examples disclose the oxidation of 4- methylpentene-2 using, as catalyst, Rh(PPh 3 ) 3 Cl, Rh(PPh 3 ) 3 I or Ir(PPh 3 ) 2 (CO)Cl to give the corresponding epoxide, 2-methylpent-3-en-2-ol, 4-methylpent-3-en-2-ol and other products, and the oxidation of 2-ethylhexene-1 using Rh (PPh 3 ) 3 Cl which gives the corresponding epoxide, unsaturated alcohols, heptanone-3 and epoxyalcohols.
Patent GB-1478558-A (GB)
Title: Sealing caps
IPC: B65D41/42
Filed: 1975-10-02
Abstract: 1478558 Caps; frangible connections SIGMA-TAU INDUSTRIE FARMACEUTICHE RIUNITE SpA 2 Oct 1975 [11 Oct 1974] 40376/75 Heading B8T A sealing cap comprises an upper cylindrical part 2 of smaller diameter than a lower cylindrical part 1, the lower part having its rim turned inwardly to engage a receptacle neck. The upper part 2 is connected to the lower part 1 by a frangible score line 4 extending part part way round the circumference to leave an unscored section 3. An axially extending score line 6 extends across the lower part 1 from one or both ends of the score line 4. One or more joining points 5 may be provided in the score line 4. In operation, pressure is applied to a grooved area 7 on the part 2 to rupture the score line 4, gripping of the part 2 then ruptures the line 6 to remove the cap from the receptacle neck. The cap is preferably made of metal and is crimped onto the end of the receptacle neck.
Patent GB-1112390-A (GB)
Title: Improvements in machines for mixing or conveying material of a plastic dough-like consistency
Inventor: BENNETT ALAN DAVID
IPC: B29C48/03
Filed: 1964-10-07
Abstract: 1,112,390. Mixers; driving arrangements. BAKER PERKINS GRANBULL Ltd. 31 Aug., 1965 [7 Oct., 1964], No. 40901/64. Heading B1C. [Also in Divisions B5, B8 and F2] A screw conveyor 5 which may be associated with an extrusion or injection moulding machine, or a mixing machine, is driven at varying speeds with substantially constant torque by (i), a variable speed electric motor 33, whose power output is transferred to conveyor 5 via a cylindrical cage 17, pinions 22, sun wheel 14 and a shaft 10, and (ii), by a constant speed electric motor 29 whose output is transferred via worm gearing 26, 27, shaft 16, sun wheel 15, pinions 22, sun wheel 14 and shaft 10. In operation, sun wheel 15 remains stationary when motor 29 is not working, and when it is working the rotational speed of screw conveyor 5 is increased by a fixed amount. This allows a motor 33 to be chosen of reduced speed variation range and power output. The connection between shaft 16 and sun wheel 15 is arranged to break if a predetermined torque is exceeded and such a connection may be a shear pin (not shown). Preferably conveyor 5 and shafts 10 and 16, linked by a rotary coupling 34, are hollow to allow circulation of a cooling liquid and barrel 3 of screw 5 is provided with heaters 4. Motor 33 may be of the constant speed type and associated with either a mechanical or hydraulic gear or an electro-magnetic induction coupling. The invention is particularly applicable to the extrusion of PVC.
Patent GB-1086264-A (GB)
Title: Improvements in or relating to cutter picks
Inventor: NEWELL MAURICE
IPC: E21C35/19
Filed: 1964-10-07
Abstract: 1,086,264. Mineral cutter picks. AUSTIN HOY & CO. Ltd. Oct. 6, 1965 [Oct. 7, 1964], No.40960/64. Heading E1F. To allow of relative ease of insertion as compared with extraction of a pick from the socket of a pick box there is associated with the shank of the pick a coiled spring latch having a coiled portion housed in the bottom of the shank and two arms extending from this portion up opposite sides of the shank. The arms extend gradually apart and then turn abruptly inwards to enter a hole through the shank. Grooves are formed in the sides of the shank into which the arms are compressed by the upper surface of the socket as the shank is entered therein until released into a recess in the socket walls.
Patent GB-1175109-A (GB)
Title: Grease-Lubricated Thrust Bearing
Inventor: SCHAEFFLER WILHELM
IPC: F16C19/30
Filed: 1967-09-07
Abstract: 1,175,109. Bearings; lubricating. W. SCHAEFFLER, and G. SCHAEFFLER. 7 Sept., 1967 [16 Sept., 1966], No. 40998/67. Heading F2A. A ball or roller thrust bearing has a cage provided with grooves in at least one of its side faces, the grooves extend from the radially inner edge, or from points close to the radially inner edge, to the radially outer edge of the cage and all the grooves are inclined in the same circumferential direction. In an embodiment grooves 4, Fig. 1, are provided in a cage I of a roller bearing and are each located intermediate rollers 3 which are received by sockets 2, and are each open at their ends. In other embodiments the grooves are arcuate, each groove intersects a socket, grooves provided on one side face of the cage are inclined in the same circumferential direction as grooves provided on the other side face, grooves provided on one side face of the cage are inclined in an opposite circumferential direction to grooves provided on the other side face, grooves 9, Fig. 5, become radial at the inner periphery 10 of the cage 1, and grooves 11, Fig. 6, are open towards the outer periphery of the cage only. In use lubricant is urged radially inwardly by the grooves, a circulation is maintained and the rollers are continuously lubricated..