baber/WOPTO huggingface dataset:
Patent GB-842002-A (GB)
Title: Improvements in or relating to animal growth promoting substances
IPC: A23K1/16
Filed: 1956-07-04
Abstract: An animal nutrient material contains, as a growth promotant, at least one water-insoluble organic compound, derived from the cationic fragment of a cationic surfactant and the anionic fragment of an anionic polyelectrolyte.  The cationic fragment may be derived from surface-active quaternary ammonium compounds, e.g. halides in which specified substituent groups are methyl, saturated or unsaturated alkyl groups of from 8 to 22 carbon atoms e.g. octyl, decyl, dodecyl, and octadecyl, and aromatic groups e.g. benzyl and (p-diisobutylphenoxyethoxy (ethyl, Mixtures of different cationic surfactants, e.g. quaternary ammonium compounds prepared from a natural fatty acid source, can be used to supply the cationic fragment, e.g. trimethyl-"coco"-and-"soya"-ammonium chlorides and dimethyl-"tallow"-ammonium chloride.  Surface active primary, secondary, and tertiary amines such as alkylamines, dialkylamines, dimethylalkylamines, bis(2-hydroxyethyl)alkyl amines and N-alkyl-1, 3-propanediamines, the amines containing at least one alkyl chain of from 8 to 22 carbon atoms, e.g. dodecyl and octadecyl.  Cyclic nitrogen compounds such as N-alkylpyridinium halides e.g. octadecyl-pyridinium chloride can be employed.  The anionic fragment can be derived from anionic polyelectrolytes e.g. polysulphonic acids such as suramin, "Amberlite" IR-105 (Registered Trade Mark) and acidic azo dyes such as the parent acids of Trypan Red and Direct Blue B.B.; polyphosphonic acids, e.g. "Duolite" C-61 (Registered Trade Mark); polycarboxy acids e.g. polyacrylic acid, unspecified weak cation-exchange resins, arabic acid, alginic acid and pectic acid; polysaccharinic acids e.g. carboxymethyl cellulose, oxidised starch, mucin, hyaluronic acid, polyglucuronic acids, and acids contained in naturally occurring gums such as tragacanth, locust bean, quince seed, linseed, karaya and acacia; polysulphuric esters e.g. agar-agar and carrageen mucilage; mixed polycarboxylic acids and polysulphuric acid esters e.g. neparin and chondroitin sulphuric acid; polyphosphoric esters e.g. Duolite C-65 and phytic acid; and polysilicates e.g. bentonite.  The compounds of the invention are prepared by dissolving the cationic surfretant in a solvent e.g. isopropyl alcohol and reacting it with an alkali solution of the anionic polyelectrolyte.  The compounds can be mixed with water or a nutrient substance to form a premix which is then combined with an animal feed.  A specified premix contains 20% of organic compounds and 80% of steamed bone meal.  Examples describe the preparation of the compounds of the invention and their addition to chicken feed. Specification 757,960 is referred to.
Patent GB-895334-A (GB)
Title: Improvements in or relating to bifocal contact lenses
IPC: G02C7/04
Filed: 1960-06-14
Abstract: 895,334. Bifocal contact lenses. KOCH, R. J. A. June 14, 1960 [June 24, 1959], No. 20787/60. Class 97(1). A bifocal contact lens has an upper part A of one focal length and a lower part B of a different focal length and the lower part is of such a thickness that the centre of gravity of the lens lies substantially below the centre of the total area of the lens. The lens may be tapered towards its upper end and the lower part may be of crescent shape.
Patent GB-703291-A (GB)
Title: Novel copolymers and compositions containing the same
IPC: G03B17/24
Filed: 1951-09-04
Abstract: In a modification of the process of the parent Specification alkenes, for example 1-octene, are copolymerized with esters of aliphatic unsaturated alcohols and aliphatic acylated hydroxy carboxylic acids, the hydroxy groups being esterified with carboxylic acids, for example allyl acetyl glycollate and allyl acetyl lactate, in such a way that initially and in any subsequent small interval of time the copolymer formed has an average molecular weight of below 3,000 and contains an average of 5 to 14 carbon atoms (including the carbon atom of each carboxylic group) per esterified carboxyl group. Copolymerization may be carried out in the presence of chain stoppers, preferably aldehydes and ketones with 1 to 6 carbon atoms and hydrocarbons with a labile hydrogen atom linked to an aliphatic carbon atom which in turn is linked to an aromatic nucleus, for example cumene or triphenylmethane.  The copolymer products are liquid and may be used as plasticizers for polyvinyl chloride.
Patent GB-445844-A (GB)
Title: Improvements in or relating to means for operating curtains and the like
IPC: A47H5/06
Filed: 1934-07-16
Abstract: 445,844. Suspending and operating curtains. SCHAFER, L., 97, Freiheitstrasse, Remscheid, Germany. July 16, 1934, Nos. 20844 and 20845. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 15, 1935]. [Class 52 (v)] The curtain is hung by hooks 5 from runners 4 sliding in grooves 2, 3 in the under surface of a cornice 1 and connected to an endless cord 6 passing over end pulleys 7 one of which is rotated by reciprocating a nut 15 on a twisted rod 11 connected to the shaft, of the pulley by a universal joint 9. The nut 15 is associated with a hand grip 13 and is pressed against the hand grip to rotate the rod 11, while during the return or idle stroke the nut is released so as to rotate on the rod. As shown, the nut comprises a plate 17 with a square hole engaging the rod, mounted on a rounded member 15. In modified forms of nut and hand grip (not shown) a threaded spherical member engages the rod and a further spherical member is mounted on the the end of the rod. For tensioning the cord 6 the pulley 7 is mounted on a slide 12 at the end of the cornice 1 and pressed outwards by a spring 10. The cornice may be in two parts adjustable longitudinally and held together by clamps so as to fit windows of different widths.
Patent GB-208513-A (GB)
Abstract: 208,513. Wennerby, A. O. L. Dec. 13, 1922, [Convention date]. Addition to 190,037. Cylinders, pipes and ports of.-In a two-strokecycle engine compressed air is supplied by a double-acting pump 3 to a reservoir 5, the cylinders being scavenged by air admitted through terminal ports 8, which open after the opening of the exhaust ports. The air for forming the charge is admitted through valves 6 in the cylinder head. The air passes from the reservoir to the ports 8 through a cross duct 10 and ducts 9 cast in the pump cylinder.
Patent GB-484545-A (GB)
Title: Improvements in and relating to reflectors for electric lamps
IPC: F21V17/00
Filed: 1937-07-28
Abstract: 484,545. Securing reflectors to holders. CROSSLAND, A. G. July 28, 1937, No. 20856. [Class 75 (ii)] For removably connecting a reflector 8 to a tubular suspender or holder 1 an internal ring 3 formed with entry gaps 4 and slots 5 is secured to the lower end of the suspender and an external ring 12 provided with lugs 14 bent to form hooks 13 is secured to an upper tubular extension 9 of the reflector. The reflector is connected to the suspender by passing the hooks 13 through the gaps 4 and rotating and then lowering the reflector so that the hooks rest in the slots 5. Alternatively upturned hooks may be formed on the ring 3 and slots in the lugs 14.
Patent GB-1113612-A (GB)
Title: Tubes comprising high molecular weight polymeric materials and fibers,method for preparing the same and apparatus for carrying out said method
IPC: B29C48/153
Filed: 1965-05-18
Abstract: 1,113,612. Reinforced plastic tubes. T. TAKADO. 18 May, 1965 [9 June, 1964; 10 June, 1964; 31 Aug., 1964; 10 Sept., 1964], No. 20911/65. Heading F2P. [Also in Division B5] Fibre-reinforced polymeric tubing is formed by extruding a tube 11 of a high molecular weight polymeric material from a pressure vessel 4; forming a knitted or woven fabric tube thereon from yarns 10; passing the composite tube through a bath 12 containing a solution 15 of a material which is capable of softening the extruded tube; expanding the softened extruded tube by applying compressed air to the inside of the tube by means of a pipe 13: heat hardening the thus expanded tube by passage through a hot air heater 19; and finally flattening the finished tube and storing it on a wind-up roll 25. By controlling the pressure of the air in pipe 13 relative to the air pressure outside the tube the degree of expansion of the extruded softened tube may be controlled and thus the position of the embedded fabric within the tube wall may be accurately determined. In an alternative embodiment illustrated in Fig. 2, a coiled flattened fabric tube 201 is expanded and dried &c. by passage over perforated ball 203 and rollers 205, 206; passed over a mandrel 208, through a polymer bath 213 through a heater 214; and is finally rolled up on storage roll 222. Air under pressure is introduced into the composite tube via holes 202 in ball 203 and perforated tube 208<SP>1</SP>, the air leaving the tube via the interior of mandrel 208 and a suction device 216, 217.
Patent GB-772910-A (GB)
Title: Process and apparatus for the thermal chlorination of hydrocarbons
IPC: C07C17/00
Filed: 1955-07-19
Abstract: <PICT:0772910/IV(b)/1> In a process for the thermal chlorination of methane and for partially chlorinated methanes, a preheated mixture of methane and/or partially chlorinated methane is introduced into spaces of small cross-sections between walls, one of which is heated to start the reaction and the other cooled to substantially lower temperature.  The reaction chamber may be the annular space between two tubes centrally heated, and surrounded by an external cooling jacket, or groups of such concentric tubes.  In the drawing, for the production of methylene chloride, the preheated mixture of chlorine and methane or methyl chloride is introduced at 11 into the annular space between stainless steel tubes 5 for the passage of the heating fluid, and external tubes 9 concentric with these; air passed through to cool the outer surface of 9 passes from 3 to 4; the outer casing is resilient (2) to allow of changes of pressure; a maximum ratio of chlorine to hydrocarbon is 0.5.  The mixture is pre-heated to about 200 DEG  C. and the hot wall is kept at 400-600 DEG  C., and the cold wall below 150 DEG  C. Methylene chloride is a product.
Patent GB-1272715-A (GB)
Title: Aluminium hydroxide gels
IPC: C01F7/34
Filed: 1970-04-30
Abstract: 1,272,715. Antacid. GIULINI G.m.b.H. GEB. 30 April, 1970 [30 April, 1969], No. 20984/70. Heading A5B. [Also in Division C1] An antacid composition which may be in tablet form comprises a pharmaceutical carrier, or excipient, and an aluminium hydroxide gel which has been prepared by simultaneously adding an aqueous solution of an alkali metal carbonate and/or bicarbonate and an aqueous solution of aluminium sulphate to an aqueous medium.
Patent GB-282848-A (GB)
Title: Improvements in or connected with adjustable wire and other mattresses and the like
IPC: A47C23/145
Filed: 1926-08-26
Abstract: 282,848. Wicksteed, A. Aug. 26, 1926. Spring surfaces.-Woven wire or like fabric 4 is secured to the end bars 2 of a mattress frame, and preferably to the inner faces thereof, by clamping bars 5 which are received in a groove of a depth substantially equal to the combined thickness of the fabric and clamping bar. The end edges of the fabric may be stiffened by metal binding strips. To provide a smooth surface for the ends of the frame bars, bent metal strips 12 may be provided, or the ends of the clamping bars 5 may be extended and bent over to serve the same purpose.
Patent GB-1330767-A (GB)
Title: Process for the manufacture of polybutene oils
IPC: C08F210/18
Filed: 1971-04-19
Abstract: 1330767 Liquid polybutenes CHEMISCHE WERKE HULS AG 19 April 1971 [5 Feb 1970] 21119/71 Heading C3P [Also in Division C5] Polybutene oils are prepared by polymerizing one or more butenes in a liquid phase by means of a carrier-free Friedel-Crafts catalyst in the form of a suspension and in the presence of one or more dienes and/or acetylenes. The butene may be 1-butene, a 2-butene or isobutylene or mixture thereof. The diene may be a C 3-22  conjugated or non-conjugated diene, e.g. butadiene, isoprene, 1,4-hexadiene, cyclopentadiene and dicyclopentadiene, and the acetylene may be a C 2-8  compound, e.g. acetylene, methylacetylene, ethylacetylene, vinylacetylene and phehylacetylene. The catalyst may be ferric chloride, antimony trichloride, stannous chloride, zinc chloride or aluminium chloride. The polymerization may be effected in bulk or in a hydrocarbon liquid, e.g. pentane, heptane, octane, cyclohexane or hexane. The products are useful as lubricating oil additives, and blended with solid polybutenes to give adhesive and sealing compositions useful in the manufacture of adhesive films, roofing felts and road surfacings. Examples describe the polymerization of butene mixtures in the presence of (1, 2, 5 and 6) 1,3-butadiene; (3) 1,4-hexadiene, (7) 1,3-butadiene and acetylene and (9) acetylene; and of butene-1 in the presence of (4) isoprene and (8) acetylene; with aluminium trichloride as catalyst.
Patent GB-1352397-A (GB)
Title: Automatic standardization of nucleonic gauges
IPC: G01N23/16
Filed: 1971-04-19
Abstract: 1352397 Nucleonic gauge; voltage measuring INDUSTRIAL NUCLEONICS CORP 19 April 1971 [11 March 1970] 21162/71 Headings G1A and G1U A nucleonic gauge, e.g. a beta gauge for measuring the basis weight of a paper web, is provided with feedback control means for periodically standardizing the gauge to compensate for source decay, detector amplifer zero drift etc. Zero standardization. During normal measurement the output of the gauge (beta source of Sr 90 or C14 and an ionization chamber) 50, 52 is connected to an electrometer pre-amplifier 58. A zero reference for the system is set by potentiometer 70 feeding the second input to the electrometer. The electrometer output is fed via buffer amplifier 78 and gain control potentiometer 76 to summing amplifier 80 at input 81. The output after filtering at 90 is recorded at 20 and fed to a computer via interface 102. In zero standardization, the switch 60 is opened (shutter 64 being closed for safety) and the electrometer output compared with a zero reference voltage introduced into amplifier 80 at input 82. Any difference between the levels at inputs 81 and 82 is amplified and after filtering applied through feedback circuit 130 to cause adjustment of potentiometer 70 so as to null the amplifier 80 output. The appropriate switches 132, 134, 136 to render this feedback loop effective are closed under the control of sequencing logic 38 on initiation of a standardizing operation. The servo motor 144 back e. m. f. is sensed and applied through differential amplifier 150 and switch 136 to input 83, to oppose the signal causing movement of the motor to thereby provide damping of the potentiometer movement and prevent overshoot and hunting. While standardizing is taking place scale or span control 96 is disconnected from input 85 of the amplifier 80. Completion of standardization is indicated by the output on 92 remaining below a predetermined level for a pre-set time as served by unit 160. Source standardization. This is carried out with the gauge connected (through switch 60) but off the edge of the web. The electrometer output is compared with a reference voltage based on the original calibration fed in at 82. The feedback control is by servo motor 180 to adjust potentiometer 76. Damping is provided in this case through switches 172, 174 and 176 to input 84 of amplifier 80. Again completion of standardizing is sensed by 160. The circuit 160 is described in detail with reference to Fig. 5 (not shown) and the sequence of signals in control of this circuit described Fig.6 (not shown). The circuit includes amplification of the signal on line 92 at a gain appropriate to the type of standardization, a comparator and a monostable multi-vibrator to determine the length of time that the particular level of signal has to be maintained. Drift may also be present in the system as a result of dust and foreign matter in the radiation path.
Patent GB-452608-A (GB)
Title: Improvements relating to the supply of pulverulent fuel to internal combustion engines
IPC: F02B45/02
Filed: 1935-07-25
Abstract: 452,608. Pulverulent - fuel engines. SCHICHAU GES., F., Schichaustrasse, Elbing, Germany. July 25, 1935, No. 21176. Convention date, July 25, 1934. [Class 7 (ii)] Pulverulent fuel is introduced into the antechamber 2 while the pressure in this chamber is less than that in the working cylinder 3; for example, during the latter part of the suction stroke and the earlier part of the compression stroke.
Patent GB-688027-A (GB)
Title: Improvements in or relating to cableways and like lifting and transporting systems having a hoisting mechanism on a carriage movable along a track or rope
Inventor: SHIELDS HERBERT FREDERICK HENR
IPC: B66C21/00
Filed: 1949-08-15
Abstract: 688,027. Electric control systems. ROPE & ROPEWAY DEVELOPMENTS, Ltd., BRITISH ROPEWAY ENGINEERING CO., L t d., SHIELDS, H. F. H., and PHILLIPS, W. K. V. No. 21244/49. Class 40 (i) [Also in Group XXX] A cableway, telpher or like lifting and transporting system (see Group XXX) is controlled by a radio receiver in response to signals from a remote radio transmitter. In the cableway hoist illustrated a continuously driven rope 12 passing around drums 13 on the carriage serves alternatively to traverse the carriage along its track 10 when the drums 13 are held by hydraulically operated brakes 35, 36 or to operate a hoisting drum 26 thereon through a differential gear and a variable ratio hydraulic coupling 20. The transmitter includes four audio-frequency tone generators arranged in pairs and controlled by interlocked switches so that the output of one tone generator of each pair may be applied to modulate the carrier. The receiver includes four relays each fed from the demodulator through a filter passing one of the modulation tones. Operation of either of the relays corresponding to one pair of modulation tones causes a motor 72 to run in a direction dependent upon which relay of the pair is operated. Operation of either of the remaining two relays energizes one of two solenoids 85, 87 to couple the motor 72, either to an arm 83 on a shaft 90 which controls the variable ratio hydraulic coupling 20, or to an arm 84 whose rotation controls valves 91 which operate the brakes 35, 36 on the drums 13. The couplings for the arms 83 and 84 comprise sprockets 77 and 78 driven through flexible couplings 75, 76 from the motor 72 and each raised by operation of the corresponding solenoid 85 or 87 to engage a chain 79 or 80 on an arcuate member 81 or 82 secured to the corresponding arm.. Thus for each operation the carrier must be modulated by two tones, one of which engages one of the couplings 77, 78 corresponding respectively to operation of the hoist drum and to traversing, and the other of which determines the direction of movement of the controlling arm 83 or 84. If the tone controlling the motor 72 is cut out, whichever coupling 77 or 78 is made holds the corresponding arm 83 or 84 in its 'displaced position; if however the tone controlling the coupling 77 or 78 is removed, the arm 83 or 84 is returned to its central position by springs. The interlocked switches at the transmitter for controlling the tone generators may be operated by a single control column working in a cruciform gate. A manually-operated switch is provided on the carriage to cut out the receiver which may also be cut out automatically in the absence of a carrier wave or when the driving rope 12 is at rest. The carrier wave may be modulated by coded pulses instead of by audio frequency tones.
Patent GB-815737-A (GB)
Title: New polyazo-dyestuffs derived from 3,3-dihydroxydiphenylamine and processes for their manufacture
IPC: C09B33/18
Filed: 1955-07-22
Abstract: The invention comprises dyestuffs of formula <FORM:0815737/IV (c)/1> where R and R1 are benzene or naphthalene residues, at least one of which contains at least one SO2H group, A is a residue of 2-naphthyl-3-hydroxy-6-, -6-hydroxy-8-, -5-hydroxy-7- and -8-hydroxy-6-mono- and -8-hydroxy-3,6-di-sulphonic acids and X is -N=N- or <FORM:0815737/IV (c)/2> where -N=N- is m- or pto -NH-CO-. They may be made by diazotizing an appropriate 2-amino- or 2-(31- or 41-aminobenzoylamino)-naphthol sulphonic acid, coupling with 3,31-dihydroxydiphenylamine and the product with 2 mol. proportions of the required diazo compounds; by coupling a diazotized aniline or naphthylamine in alkaline medium with the naphthol sulphonic acid, the diazotized product is coupled with the diphenylamine and the disazo dyestuff thus obtained is coupled with an appropriate diazo compound; by coupling a diazotized aniline or naphthylamine with the diphenylamine and the product with the diazotized naphthol sulphonic acid with subsequent coupling of the disazo dyestuff thus produced with an appropriate diazo compound and by coupling in an alkaline medium a monoazo dyestuff obtainable by coupling a diazotized aniline or naphthylamine with the diphenylamine and a diazo compound of a monoazo dyestuff obtainable by alkaline coupling the naphthol sulphonic acid with an appropriate diazo compound.  The dyestuffs dye leather in yellow to deep brown tints.  In examples which illustrate the preparation of the dyestuffs and their use in dyeing leather components used corresponding to R and R1 are 4-nitro-, 2-chloro-4-nitro-and 2-hydroxy-3,5-dinitro-anilines, aniline-4-sulphonic acid and its 2-methyl and -nitro derivatives, aniline-2,5-disulphonic acid, 4-amino-diphenylamine-2- and 4-amino-41-nitropiphenylamine-21-sulphonic acids, 4-amino-1,11-azobenzene-41-sulphonic acid, Cleve's acids and 1-naphthylamine-4- and 2-naphthylamine-7-sulphonic acids, the naphthol sulphonic acids corresponding to A being chosen from those indicated above.
Patent GB-1072782-A (GB)
Title: Transport mechanism for sheet or web material
IPC: G03D3/13
Filed: 1964-05-25
Abstract: 1,72,782. Film transport mechanism. EASTMAN KODAK CO. May 25, 1964 [June 17, 1963], No. 21454/64. Heading G2A. The transport mechanism is shown as applied to a photographic processing apparatus Fig. 1 (not shown), in which either separate sheets or a continuous film strip is passed through a succession of processing tanks. Fig. 2 shows the conveying of a number of separate sheets 24, 25, 26 vertically by transport rollers 20, and turned around by a larger master roller 22. Further rollers 28, 30, 32 act as guides. Master roller 22 is driven by a chain 18 and sprocket 34, the sprocket driving roller 22 via a unidirectional clutch 36. The sprocket is of slightly larger diameter than roller 22, so that the velocity of the chain is slightly greater than the surface speed of roller 22. The film sheets are driven by rollers 20 at a speed slightly greater than this surface speed, so that as they pass round roller 22 they drive it at their own speed, over-riding the clutch. If roller 22 is momentarily not being driven by a film sheet, its speed falls only by such amount that the clutch engages once more and drives it at the speed of sprocket 34. Thus there is no possibility of master roller 22 slowing sufficiently to cause jamming or overlapping of the film sheets. When continuous film strips are being conveyed, which strips are liable to expand on passing through a processing solution and so cause slack, this is taken up as soon as it develops by the continuing rotation of roller 22.
Patent GB-261845-A (GB)
Title: Improvements in or relating to the shaping of the heel ends of boot and shoe soles
IPC: A43D8/48
Filed: 1925-08-27
Abstract: 261,845. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Aug. 27, 1926. Connecting uppers to soles. - Prior to heeling a shoe the central portion of the heel seat is compressed and the marginal portion, for example the upper and counter, formed as a relatively soft bead, so that on attaching a wooden heel k, the peripheral rim of the heel is embedded in the soft bead to make a tight joint.