baber/WOPTO huggingface dataset:
Patent GB-455711-A (GB)
Title: Manufacture of dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1935-03-22
Abstract: Acid anthraquinone dyes capable of being chromed are prepared by condensing an a -halogenanthraquinone sulphonic acid or a substitution product thereof, advantageously in the presence of copper or a copper salt and an acid binding agent, with an aromatic amino-o-oxycarboxylic acid which contains the amino-and o-oxycarboxylic acid groupings in different rings and, if desired, introducing further sulpho groups into the products by treating with a sulphonating agent.  Alternatively, an aromatic amino-o-oxycarboxylic acid which contains the amino- and o-oxycarboxylic acid groupings in different rings is condensed with an a -halogenanthraquinone containing a further halogen atom exchangeable for the sulphonic acid group and this halogen atom is so replaced by treatment with alkali sulphite.  In examples: (a) 1,5-dioxy-4,8-dibromanthraquinone-2,6-disulphonic acid is condensed with 2-oxy-5-(m-aminobenzoyl)-aminobenzoic acid and 4<1>-amino-4-oxy-3-methyldiphenylmethane-5-carboxylic acid; (b) 1-amino-4-bromanthraquinone-2-sulphonic acid is condensed with 4<1>-amino-4-oxy-3-and -2-methyldiphenylmethane-5-carboxylic acids, 4<1> - amino - 2 - oxy - 5 - methyldiphenylmethane - 3 - carboxylic acid, 5 - (p - aminobenzoyl) - amino - 2 - oxybenzoic acid, 4 - aminodiphenylmethane - 4<1> - oxy - 3<1> - carboxylic acid, 4 - (3<1> - and 4<1> - aminobenzylamino) - 2 - carboxyphenols, 2<1> - aminobenzyl - 4 - oxy - 3 - methyl phenylsulphone - 5 - carboxylic acid, 3<1> - amino-4<1>-methoxybenzyl-4-oxyphenylsulphone-5-carboxylic acid and the 3-methyl derivative thereof, 4 - chloro - 3 - aminobenzyl - 4<1> - oxy - 3<1>3 - carboxyphenylsulphone, 3-amino-6-methoxybenzyl-4<1>-oxy - 3<1> - carboxyphenylsulphone (these aminobenzyl-phenylsulphones are made by condensing the appropriate nitrobenzyl chloride with salicylsulphinic acid and reducing), (N-p<1>-aminophenyl) - 2 - carboxyphenol - 4 - sulphamide, 4-amino-2-chloro-4<1>-oxy-3<1>-carboxydiphenylurea, 4-amino-4<1>-oxyazobenzene-3<1>-carboxylic acid, 2-amino-5-sulphodiphenylamine-4<1>-oxy-3<1>-carboxylic acid and 2,4-diaminodiphenylether-3<1>-oxy-4<1>-carboxylic acid; (c) 1-iodoanthraquinone-2-sulphonic acid is condensed with 6 - amino - 3 - oxy - 2 - naphthoic acid; (d) 1-amino-2.4-dibromanthraquinone is condensed with 4 - amino - 2<1> - oxy - 5<1> - methyldiphenylmethane-3<1>-carboxylic acid and the product treated with sodium sulphite in phenol.  Samples have been furnished under Sect. 2 (5) of dyes prepared by condensing 1-amino-4-bromanthraquinone-2-sulphonic acid with 2-amino-4-sulphodiphenylamine-2<1>-oxy-5<1>-sulpho -3<1>-carboxylic acid and with 3-amino-4<1>-oxybenzophenone-3<1>-carboxylic acid, and 1-iodoanthraquinone-2-sulphonic acid with 4-aminoazobenzene-4<1>-oxy-3<1>-carboxylic acid.  The dyes on after-chroming yield chromium lakes and the dyeings on wool when after-chromed yield fast shades (blue, green and brown). Specifications 355,716, 355,743, and 452,424 are referred to.
Patent GB-1170492-A (GB)
Title: Prefabricated Building Panels
IPC: E04B2/90
Filed: 1967-02-24
Abstract: 1,170,492. Panels. SOC. ANON. DES USINES CHAUSSON. 24 Feb., 1967 [4 March, 1966], No. 9014/67. Heading E1B. A wall panel 1 has a reinforcing framework of horizontal, 4, and vertical, 2, channelsection metal members, with intermediate horizontal channel-section members, e.g. 4a, 4b arranged back-to-back, and core blocks 7 of cellular concrete, e.g. vermiculite, which are arranged side-by-side with a spacing in from the framework members, the framework and the core blocks being embedded in a foamed plastics material, e.g. foamed polyurethane, and then faced with facing sheets 11 (Fig. 2, not shown) of, e.g. metal. Several frameworks may be fitted together side-by-side to form a partition (Fig. 3, not shown) and a window opening, e.g., may be formed by extra channelsection members 2c, 15, all the members forming the window opening being formed with one flange of the channel extending backwards and forwards from the web to form a rabbet (see Fig. 1). The webs of the framework members 2, 4 have tags 8 punched out to form holes 6, the tags 8 locating the blocks 7. The blocks 7 also have holes 9 therethrough to improve the bond between the blocks and the foamed plastics.
Patent GB-967189-A (GB)
Title: Improvements in semiconductor alloys and in methods of manufacturing the same
IPC: C30B13/00
Filed: 1962-03-08
Abstract: A semi-conductor material has the formula Mg2Sux Pb(1-x) with 0.33 \sE x \sE1.  A slight excess of magnesium may be present or silver may be added to obtain a P-type semi-conductor and Al or Sb may be added to give an N-type semi-conductor. The alloys are made by mixing the components in a very pure state and heating at 700-900 DEG  C. in an inert atmosphere (e.g. in argon at a pressure of 50-60 hg./sq. cm.). The alloy is homogenized by "horizontal crystal pulling" or "floating zone technique."ALSO:A photoconductive component comprises a semi-conductor alloy of the form Mg2SnxPb(1-x) with 0.33\sEx\sE1. A slight excess of magnesium may be present or silver may be added to obtain a P-type semi-conductor and Al or Sb may be added to give an N-type semi-conductor. The alloys are made by mixing the components in a very pure state and heating at 700-900  DEG C. in an inert atmosphere, (e.g. in argon at a pressure of 50-60 hg./sq.cm.).  The alloy is homogenized by "horizontal crystal pulling" or "floating zone technique".  The contacts may soldered on using a solder comprising 70% Sn 30% Zn.
Patent GB-177798-A (GB)
Title: Arrangement for shifting a driving pinion automatically into engagement with a driven toothed rim, adapted particularly for starting motors of explosion engines
IPC: F02N15/06
Filed: 1922-03-30
Abstract: 177,798. Fallimento Soc. Anon. Manifattura L. Duca, (Successors of Soc. Anon. Manifattura L. Duca). March 31, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Clutches, ratchet.-Comprises a device for automatically sliding a pinion on a driving shaft into mesh with a driven toothed gear and effecting positive clutch engagement with the shaft at the end of the axial motion. As applied to starting devices for explosion engines, the pinion slides out of mesh when the engine takes up the drive and the starting motor is stopped. In the form shown a disc 4 keyed on the shaft of the starting motor drives a shaft 1 through a spring coupling 3. A loose sleeve 5 on the shaft 1 is pressed by a spring 8 into frictional engagement with an annular flat face 9 on a clutch member 10 secured to the shaft. On the sleeve- 5 is formed a helical groove 6 in which engages a ball 13 housed in an extension 14 of an otherwise loose toothed pinion 12, the ball being held in position by a screwed sleeve 15. On rotation of the shaft 1 the pinion 12 moves axially into mesh with the driven gear (not shown), being clutched to the shaft at the end of its axial movement by engagement of ratchet shaped teeth 17 thereon with corresponding teeth 11 on theclutch member 10.
Patent GB-936450-A (GB)
Title: Apparatus for detecting the simultaneous feed of two or more sheets to a machine
Inventor: KING CARL GUSTAVE
IPC: B41F33/00
Filed: 1959-03-17
Abstract: 936,450. Feeding sheets; tripping printing presses. ROTAPRINT Ltd. March 10, 1960 [March 17, 1959], No. 9237/59. Classes 100 (1) and 100 (2). Apparatus for detecting the simultaneous feed of two or more sheets to a sheet-fed machine comprises a conduit connected to a source of reduced air pressure and also connected to a device sensitive to variations in air pressure, the conduit having an opening on each side of the path along which sheets travel from a pile to the machine and the device being operated by a change in air pressure in the conduit when more than one sheet passes between the openings so as to actuate means for stopping the machine, deflecting the sheets or signalling the double-feed. Sheets are fed from a pile 1 by suckers 4 and feed rollers 4a between the blanket cylinder 2 and the impression cylinder 3 of an offset lithographic machine. After leaving the rollers 4a the sheets pass between guide plates 5, each of which has an opening 7 which openings are connected by branches 8, 9 of a conduit 10 and a conduit 12 to the main vacuum circuit of the machine which operates the suckers 4. A regulator valve 11 is interposed between the conduits 10, 12. The conduit 10 is also connected by a further conduit 13 to a cylinder 14 in which a piston 15 is slidable, being biased towards the position shown by a spring 16. The piston 15 carries a rod 17 which slides in a support 18 and operates a microswitch 19 in an electric circuit adapted to operate a signal or deflector device or to stop the machine. As a sheet 6 is fed between the guides 5 it is sucked against one or other of the openings 7 but the pressure in the conduit 8 or 9 is not appreciably affected as the opening 7 in the other guide plate 5 remains open. If two sheets are fed simultaneously between the guides 5 they are drawn apart by the suction in the openings 7 and each sheet closes an opening 7. Pressure in the conduits 8, 9, 10, 13 is thus reduced and the piston 15 is sucked towards the closed end of the cylinder 14 so as to actuate the microswitch 19. The distance between the plates 5 may be adjustable. The piston and cylinder may be replaced by a bellows arrangement.
Patent GB-1127901-A (GB)
Title: Organosilicon copolymers
Inventor: BEATTIE JAMES HUGH
IPC: C08J9/00
Filed: 1965-03-04
Abstract: 1,127,901. Siloxane copolymers; polyurethane foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 Feb., 1966 [4 March, 1965], No. 9262/65. Headings C3C, C3R and C3T. A siloxane copolymer comprises at least one unit of the formula and at least one unit of the formula R p SiO 4-p , 2 wherein R is H or a monovalent hydrocarbon (h.c.) or substituted h.c. radical, R<SP>11</SP> is a h.c., substituted h.c., cyclic ether or substituted cyclic ether radical, of valency y+1, R<SP>111</SP> is an alkylene radical of 2 to 4 C atoms, R<SP>iv</SP> is H, a monovalent h.c., acyl, aroyl or triorganosilyl radical, x is 0, 1 or 2, y is an integer from 2 to 5, z is an integer not greater than 100 and p is 0, 1, 2 or 3. The copolymers can be made by reacting the corresponding siloxane copolymer containing Si-H with (1) an oxylated polyol ether in which one ether group contains some olefinic unsaturation, or (2) an olefinically unsaturated polyol monoether or an esterified derivative thereof, and thereafter oxyalkylating the product. Alternatively the unsaturated ether can be reacted with a hydrolysable silane containing Si-H and the resulting product can then be hydrolysed and co-condensed with a siloxane to give the desired copolymer. In a typical Example (1) a Pt alcoholate catalyst was added to a xylene solution of an acetylated oxyalkylated trimethylol-propane monoallyl ether and a Me 3 Si-terminated siloxane composed of Me 2 SiO and MeHSiO units, and the resulting mixture was heated, with subsequent removal of volatiles, to yield the desired copolymer in the form of a pale yellow oil. Uses.-For lubrication of plastics, glass and metals; mould release of rubber and plastics; emulsification of oils, including silicone oils; cosmetic applications; and as surfactants in making polyurethane foams, in which they act as stabilizers and cell control agents, the foams being made in known manner from OH-containing polyesters, polyesteramides and polyethers, polyisocyanates and water and/or a low boiling- point liquid. Numerous examples of polyurethane-forming reactants are given. Condensation catalysts and additives, such as other surfactants, flame retardants, plasticizers, fillers, colourants, and antioxidants, are also exemplified.
Patent GB-814150-A (GB)
Title: Improvements in separating oxygen from air
Inventor: RAE RANDOLPH SAMUEL
IPC: F25J3/04
Filed: 1957-03-21
Abstract: 814,150. Cold separation of air. GARRETT CORPORATION. March 21, 1957, No. 9288/57. Class 8(2). Production of liquid oxygen from air at atmospheric pressure is effected by partial liquidation of the air in a pass 27 of a heat exchanger 5 traversed by counterflowing medium at a temperature at least as low as that of liquid oxygen e.g. liquid hydrogen from a reservoir 3, the crude liquid oxygen being collected in a tank 28; the unliquefied crude nitrogen being passed through a duct 30 and a pass 31 of a heat exchanger 22 through which passes a portion of the incoming air, the crude liquid oxygen being forced by a pump 35 through a pass 33 of a heat exchanger 25 through which passes a second portion of the incoming air and hydrogen gas from the heat exchanger 5 being passed through a pass 8 of a third heat exchanger 9 traversed by the remainder of the incoming air. The outgoing hydrogen and oxygen gas in ducts 11, 36 may be fed to an engine. In a modification the combined cooled air leaving the three heat exchangers 9, 22, 25 Fig. 2 (not shown) are compressed before passing through the exchanger 5.
Patent GB-1418830-A (GB)
Title: Lavatory cleansing blokc
IPC: C11D1/72
Filed: 1973-02-26
Abstract: 1418830 Lavatory cleansing block JEYES GROUP Ltd 29 Jan 1974 [26 Feb 1973] 9329/73 Heading A5E [Also in Division C5] Lavatory cleansing blocks, intended for immersion in a domestic toilet cistern, comprise 1% by weight of C 12-16  alkyl trimethylammonium bromide as a germicide. The major proportion of the blocks consists of a mixture of a major proportion of a surfactant which is relatively insoluble in water and a minor proportion of a surfactant which is relatively soluble in water. The blocks also contain perfumes, a dye and, optionally, sodium hexametaphosphate.
Patent GB-526709-A (GB)
Title: Studs or spikes for boots or shoes
IPC: A43C15/16
Filed: 1939-03-25
Abstract: 526,709. Studs &c. for shoes &c. FOULDS, J. R. March 25, 1939, No. 9389. [Class 17 (iii)] [Also in Group XXII] A stud for athletic shoes comprises a spike portion 2, Fig. 2, flange 3, and a number of fangs 6, which are adapted to splay or spread, as shown in Fig. 6, when the stud is driven into the boot sole, preferably by means of a tool 7 with a recessed portion 7a to take over the spike 2. The fangs 6 are formed by first boring a 'hole in this part of the stud, bevelling its open end, and then cutting this hollowedout end with two or more saw cuts to form the separated fangs.
Patent GB-106020-A (GB)
Title: Improvements in or relating to Artificial Arms.
Inventor: ARNOLD JAMES ERNEST
IPC: A61F2/58
Filed: 1916-07-04
Abstract: 106,020. Arnold, J. E. July 4, 1916. Limbs, artificial.-An artificial arm having articulated fingers flexed by a cable or equivalent means tensioned bv the wearer has a device by which the fingers are closed and held locked by cne actuation of the tensioning means and are released and opened by the next. The tensioning means, such as a cable 10, is carried by a spring- pressed drum 2, and flexing cables 13, 14 are carried by a similar coaxial drum 3, both drums being urged by their spring against a stop 9. The drum 2 carries a pawl 15 which is movable in two directions at right-angles and which, on movement of the drum 2, engages a depression 20 upon a cam-member carried by the drum 3 and drives it to close the hand, the latter drum being held in moved position by a pawl 17 and the drum 2 returning under spring action. The next actuation of the cable 10 causes the drum 2 to release the pawl 17 and the two drums are then returned by the springs and the hand opens. Specifications 103.759 and 104,954 are referred to.
Patent GB-526840-A (GB)
Title: Improvements in high-pressure metal-vapour electric discharge lamps
IPC: H01J61/18
Filed: 1939-03-27
Abstract: 526,840. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and WILSON, G. H. March 27, 1939, No. 9493. [Class 39 (i)] In a high pressure metal vapour discharge lamp wherein the brightness of the discharge exceeds 2,000 candles per sq. cm. cadmium and/or zinc are added to the mercury in such an amount that the red ratio of the light from the discharge column is at least 25 per cent greater than it would be in the absence of the cadmium and/or zinc, the distance, voltage and current between the electrodes being unchanged. The effective red ratio-which includes the light obtained from the electrodes-may be further increased by the use with a lamp of a filter comprising Rhodamine B and Tartrazine. An example with a quartz envelope of 44 mm. maximum diameter and electrode spacing of 5 mm. is described.
Patent GB-375806-A (GB)
Title: Improved process of melting and refining high borosilicate glasses
Filed: 1931-03-28
Abstract: High borosilicate glasses are melted and refined in container or machinery, the contact parts of which are composed of burnt refractories of high alumina content as such (more than 70 per cent) and low flux content (not more than 2 per cent of alkali oxides) and preferably also of low iron content (not more than 1 1/2 per cent of ferric oxide).  A suitable refractory is made by burning a mixture of 85 parts of fused alumina, 8 parts of bond clay and 7 parts of kaolin, with or without the addition of phosphoric acid. Specification 316,129, [Class 22, Cements &c.] is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the melting &c. of high borosilicate glasses in contact with high alumina low flux refractories, in which the alumina content is mostly in the form of mullite, made by burning a mixture of 70 parts of mullite, 10 parts of fused alumina, and 20 parts of fire clay, with or without phosphoric acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-550144-A (GB)
Title: Improvements in and relating to electric dynamometers
IPC: H02K49/04
Filed: 1941-07-28
Abstract: 550,144. Rotary-absorption dynamometers. BRITISH THOMSON-HOUSTON CO., Ltd. July 28, 1941, No. 9579. Convention date, July 26, 1940. [Class 106 (ii)] Comprises electric apparatus for testing prime movers having field-producing means and a rotary element for placing a load of controllable speedtorque characteristic on the prime-mover, in which field fluxes in the same direction are produced by independent voltage sources one of which is constant and the other variable with the speed of the dynamometer, means being operable to alter both voltages simultaneously. In Fig. 1, the prime mover 11 is connected by a shaft 13 to the rotor 14 of a dynamometer 15 of the inductor eddy-current type. The shaft 13 is also connected to the armature 16 of a direct-current dynamo 17 which supplies current to the field 18 of the dynamometer the field 18 being connected to a potentiometer 19 connected to a supply source 20. An adjustable tap 21 furnishes a coarse adjustment and a variable resistance 22 a fine adjustment for the field 18. The booster exciter 17 has a field 23 furnished with an adjustable tap 25 moving over a potentiometer 24 and is connected in parallel with the armature 16 through a field-reversing switch 26. In a modification the field winding 18 is in two sections, a double-pole switch serving to connect them in parallel with one another across the mains or one across the main and the other in series with the armature 16. Specification 524,080 is referred to.
Patent GB-929027-A (GB)
Title: Improvements in car seat covers
IPC: B60N2/58
Filed: 1961-03-16
Abstract: 929,027. Seat covers. E. NIMMRICHTER. March 16, 1961, No. 9719/61. Addition to 929,026. Class 52 (4). An improvement in or modification of the seat cover of the parent Specification comprises a fabric which is backed throughout by a layer of foamed material, is shaped to cover the seat portion 11 and the back 12 of a seat, has a cap 13 to enclose the top of the back of the seat and has a length greater than the depth A of the seat portion and the height B of the back of the seat to provide a portion 16 for tucking-in between the seat portion 11 and the back of the seat 12.
Patent GB-367611-A (GB)
Title: Process for the recovery of tin from stanniferous materials low in gangue
IPC: C22B25/02
Filed: 1931-03-31
Abstract: Stanniferous materials low in gangue and containing zinc, such as ores, oxides, &c., are heated with a flux such as sodium carbonate under such conditions as to volatilize the whole of the zinc and part of the tin as oxides, the greater part of the tin remaining in the residue, which is afterwards treated for the recovery of the metals.ALSO:In a process for recovering tin from stanniferous materials low in gangue, such as ores, oxides, &c., containing or free from zinc, the material is mixed with a substance such as sodium carbonate or borax and carbon, and is heated in a muffle, electric, or other furnace, the temperature being so regulated as to preclude the formation of a molten slag, whereupon any zinc present distils off, and the tin and other metals are recovered in metallic form in the residues.  In some cases the material is first preliminarily heated with a flux such as sodium carbonate under such conditions as to volatilize the whole of the zinc and a part of the tin as oxides, the greater part of the tin remaining behind, whereafter the residue is mixed with sodium carbonate and carbon and treated as above.
Patent GB-1300132-A (GB)
Title: Improvements in and relating to water-borne vessels
Inventor: PAFFETT JAMES ARTHUR HAINES
IPC: B63B1/38
Filed: 1970-03-02
Abstract: 1300132 Reducing resistance to propulsion NATIONAL RESEARCH DEVELOPMENT CORP 19 April 1971 [2 March 1970] 9809/70 Headings B7M and B7V In a marine craft 10 the region 12 of the bottom 14 of the craft is coated with a material having a critical surface tension less than the surface tension of the liquid in which the craft is floating. In the embodiment of Fig. 1 pump 8 discharges air through holes 20 and the region 12 is roughened to encourage the flattening of air bubbles upon it. The term "critical surface tension" for a surface is defined and examples are given of materials having a critical surface tension less than the surface tension of water. In the embodiment of Fig. 2 two non-wettable regions 40, 42 are associated with air supply slots 44, 46. By operating one air supply alone the drag can be reduced on one side of the craft to produce a steering effect.
Patent GB-141903-A (GB)
Title: Improvements in and relating to pipe or conduit conveyors
IPC: E02F7/10
Filed: 1919-04-17
Abstract: 141,903. Bennis, A. W. April 17, 1919. Pneumatic conveyers.-Choking of the conveyer is prevented by inserting an inclined grid 3 below the charging-aperture 2. The grid is formed integral with a platform 4 which is balanced about supporting-pivots 5 and is rocked either by the act of shovelling material into the opening 7 or by power. The plate 6 of the grid may be of ichthyoidal or pterygoidal form. The platform 4 &c. can be removed and replaced by a cover-plate which forms an air seal.
Patent GB-1366272-A (GB)
Title: Piezoelectric voltage generator
IPC: H03K17/96
Filed: 1973-03-01
Abstract: 1366272 Piezo-electric generators INTERNATIONAL STANDARD ELECTRIC CORP 1 March 1973 [3 March 1972] 9959/73 Heading H2A In a piezo-electric generator, aT-shaped magnetic material striker 3 is normally held away from a pressure anvil 6 and crystal 5 by the magnetic attraction between a fixed annular magnet 4 and the head of the striker 3; if however a button 2 is depressed, it contacts the striker and pushes it away from the magnet, and a spring 8 which is compressed during the movement of the button is then able to overcome the now reduced magnetic pull on the striker, and so accelerates the striker towards the crystal. The subsequent impact causes a pulse to be generated at two electrodes 7. On releasing the button, the striker is attracted back to the magnet.