baber/WOPTO huggingface dataset:
Patent GB-969286-A (GB)
Title: Process for the production of basic thymyl ethers
Inventor: ENGELHARD HERMAN
Filed: 1962-07-16
Abstract: The invention comprises compounds of general formula: <FORM:0969286/C1/1> where R represents a hydroxy, alkoxy, acyloxy, amino or acylamino group or a halogen atom and Hal represents chlorine, bromine or iodine; and acid addition salts thereof; and their preparation by (1) condensing a corresponding 4-R-thymyl b -haloethyl ether with ethylaminoethanol and thereafter halogenating the intermediate (4-R-thymyl) (N-ethyl-N-b -hydroxyethylamino-ethyl) ether with thionyl chloride or bromide, (2) forming the b -bromoethyl compounds from the b -chloroethyl compound by reaction with sodium bromide in ethanol, (3) forming the b -iodoethyl compounds from the b -chloroethyl compound by reaction with sodium iodide in ethanol or acetone, and (4) as described with reference to the examples wherein also (A) (4-acetamido-thymyl) (b -chloroethyl) ether is reacted with ethylamino-ethanol and product hydrolysed to yield (4-amino-thymyl) (N-ethyl-N-b -hydroxyethyl-amino-ethyl) ether dihydrochloride which is reacted with thionyl chloride to yield the corresponding b -chloroethyl compound which by diazotisation and acetylation yields (4-acetoxy-thymyl) (N-ethyl-N-b -chloroethyl-amino-ethyl) ether monohydrochloride, and (B) b -bromoethyl products are obtained from b -chloroethyl compounds by reaction with alkali metal bromides in alcohol or acetone. Compounds I are also said to be obtained by reacting 4-substituted-thymols with bis-(b -chloroethyl)-ethyl amine and sodium ethoxide which yields mainly (bis-(thymoxyethyl)-ethyl amines.
Patent GB-233254-A (GB)
Title: A new or improved spiral conveyor
IPC: B65G33/00
Filed: 1924-11-15
Abstract: 233,254. Brandwood, J., Stocker, A., and Twyver Works, Ltd. Nov. 15, 1924. No Patent granted (Scaling fee not paid). Screw and worm conveyers intended particularly for conveying material from the pulp press to a disintegrator in the manufacture of artificial silk, comprise three conveyers 15 mounted at the bottom of a wooden chamber 4 of which the outer conveyers rotate in one direction and the central conveyer in the opposite direction. Material fed into the chamber 4 is directed by baffles 26 on to the outer conveyers which feed it in the direction of the arrows, Fig. 1. The plates 25 at the ends of these conveyers then transfer it to the central conveyer which forwards it to the casing 7 whence it falls through the aperture 8 to the disintegrator. Each conveyer comprises a shaft 14, a wooden cylinder 15, and a continuous metal spiral 16 having a toothed edge 17. Wood blocks 27, 28 covered with tinplate are placed in the corners of the chamber and between the conveyers. The baffle 26 is covered with tinplate.
Patent GB-676238-A (GB)
Title: Improvements relating to phase-control circuits
IPC: H03J7/04
Filed: 1949-10-25
Abstract: 676,238. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 25, 1949. [Oct. 29, 1948] No. 27397/49. Class 40 (i). [Also in Group XXXV] A load circuit is maintained at approximately unity power factor (i.e. the circuit in resonance with the supply frequency) by varying either the load reactance or the generator frequency in response to the output of a balanced phase discriminator fed from a current transformer in the load circuit and with the load voltage. The system may be used for example to maintain an antenna in tune with a variable frequency transmitter. As shown, generator 10 supplies load 20 through current transformer 12 to provide a voltage in quadrature with the current which combines vectorially with a supply voltage component developed across inductance 15 and is applied to two triodes 17, 18 biassed to cut off in the absence of a signal so as to operate in the manner of a conventional phase discriminator. An amplidyne generator 28 having its differential field 26, 27 energized by the output of the discriminator supplies a separately excited D.C. motor 31 to vary the inductance or capacitance of load 20 to maintain it at resonance. Alternatively, a potential-transformer across the load may supply the voltage component to the demodulator which controls a differental relay to control a servomotor varying the generator frequency, Fig. 3 (not shown).
Patent GB-426725-A (GB)
Title: Improvements in nozzles for grease guns
IPC: F16N21/04
Filed: 1933-10-07
Abstract: 426,725. Nozzles for grease guns. DELAPENA, L. S., Kingsbury House, King Street, St. James's, London. Oct. 7, 1933, No. 27699. [Class 69 (iii)] A solid conical nozzle a having a small delivery aperture d at its apex adapted for insertion in the aperture of a lubricating nipple is formed of steel or other hard material so that by pressure against the relatively soft material of the nipple it will make a tight connection. In order that the nozzle may be adapted for use with nipples of different sizes it may be double ended and reversible, being formed with a central passage c communicating at one end with a small orifice d for insertion in a nipple and rounded at the other end f where it is formed with a recess so that when reversed it will fit over a nipple with a relatively large receiving aperture fitted with a closure ball. The reversible nozzle may be held on a fitting h by a screwed coupling piece i. A cap may be provided to protect the end of the nozzle.
Patent GB-850502-A (GB)
Title: Improvements in or relating to insulating vessels
IPC: A47J41/02
Filed: 1958-08-29
Abstract: 850,502. Vacuum - jacketed vessels. KREBS, K. Aug. 29, 1958 [Feb. 27, 1958], No. 27839/58. Class 64(2) [Also in Group XVII] A double-walled glass vessel B such as a vacuum flask is supported in a polyethylene casing 10 by ribs 17 which are inclined to the radial direction, line ribs may be inclined alternately to the right and to the left of that direction. Instead of being longitudinal as shown, the ribs may be helical. They may be separate from the casing 10. As shown they are tapered at the top and formed with a shoulder 19 at the bottom. The casing 10 is formed with an upper ridge 14 about which fits a complementarily-formed groove of a polyethylene shoulder 11, or the shoulder may have the ridge and the casing have the groove. On the shoulder a cup E of polyethylene or transparent synthetic resin is a push fit, the surface 23 receiving the cup being channelled or ribbed to allow air flow. The stopper of the glass vessel B has a cover portion 26 which snaps into position on a body portion 25 bearing flexible ribs for sealing and containing a body 28 of foamed polystyrene or polyurethane. In Fig. 4 the shoulder 111 is formed with a sealing rib 126 and a pouring lip 125 associated with a second sealing rib 126<SP>1</SP>.
Patent GB-1242786-A (GB)
Title: THE PREPARATION OF gamma-LACTONES FROM OLEFINS
Inventor: FINKBEINER HERMAN LAWRENCE
IPC: C07D315/00
Filed: 1969-06-02
Abstract: 1,242,786. Preparation of #-lactones from olefins. GENERAL ELECTRIC CO. 2 June, 1969 [5 July, 1968], No. 27896/69. Heading C2C. #-Lactones are prepared by the oxidative coupling of (1) an olefin free of acetylenic unsaturation which is an ethylenically unsaturated aliphatic hydrocarbon, optionally substituted by benzenoid aryl or benzenoid chloroaryl groups with (2) a carboxylic acid of the formula RR<SP>1</SP>CH-COOH where R is H or alkyl, optionally substituted by benzenoid aryl or chloroaryl groups and, when R<SP>1</SP> is CN or -COOR<SP>11</SP>, benzenoid aryl or chloroaryl groups; R<SP>1</SP> is H, alkyl, CN or -OOOR<SP>11</SP> where R<SP>11</SP> is alkyl, optionally substituted by benzenoid aryl or chloroaryl groups, benzenoid aryl or chloroaryl, dissolved in an alkanoic acid having at least 2 C atoms and at least one α-H. atom using an active manganic salt of one of the carboxylic acids defined in (2) as the oxidative coupling agent. Amongst numerous examples styrene is reacted with manganic acetate in acetic acid to give 4-phenyl-y-butyrolactone; α-methylstyrene reacted with cyanoacetic acid and manganic acetate to give 2-cyano-4-methyl-4-phenyl-#- butyrolactone and neohexene reacted with methylmalonic acid monoethyl ester and manganic acetate to yield 2-ethoxycarbonyl-2- methyl-4-tert-butyl-#-butyrolactone.
Patent GB-141632-A (GB)
Title: Improvements in tobacco pipe cleaners, scrapers & prickers
IPC: A24F9/08
Filed: 1919-11-12
Abstract: 141,632. Beeton, G. H. Nov. 12, 1919. Cleaners, scrapers, pickers, and prickers for tobacco pipes. Two flat cutting blades A, A<1> are pivoted together at B so as to open out to fit bowls of different sizes, and a picker D is pivoted to one of the blades. One wing of each handle E, E<1> is bent outwards to facilitate manipulation.
Patent GB-1466563-A (GB)
Title: Aperture plug
IPC: F16J13/14
Filed: 1974-05-30
Abstract: 1466563 Closure plugs for apertures; washers UNITED CARR Ltd 30 May 1974 [12 June 1973] 28011/73 Heading F2H A plug 10 for closing a panel aperture 21, e.g. a paint drain hole in a vehicle body, comprises plate portion 11 from which depend resilient legs 12, 13, 14 which can be snap-engaged through the aperture to draw the plate portion 11 on to the panel 22, each leg being formed by folding a radial extension 17 of the plate portion back against the plate portion and bending a part of the folded back extension away from the plate portion 11 to project from a position radially inwards of the periphery of the plate portion so that the periphery is unbroken. Each leg has an outwardly inclined retaining portion 15 and an inwardly inclined lead-in portion 16. A depression 19 in the plate portion 11 receives the folded back part of the leg so that a continuous annular bearing surface 20 is formed around the periphery of the plate. A resilient sealing ring (23) (Figs. 4-6, not shown), e.g. of P.V.C. may be bonded to the surface 20. Alternatively a ring 26, Fig. 7, of low density polyethylene having a web 28 with a resilient retaining lip 29 may be snapped on to the plug, or secured with adhesive. When the panel and plug are heated, e.g. in a paint curing oven, the polyethylene softens and flows to fill surface irregularities in the panel and plate portion, and bonds to the panel and plug.
Patent GB-535971-A (GB)
Title: Method of manufacturing chlorate and perchlorate explosives
IPC: C06B29/02
Filed: 1939-10-18
Abstract: 535,971. Explosives. LORENZINI, E. Oct. 18. 1939, No. 28145. [Class 9 (ii)] Blasting, sporting gun, and rifle powders of the chlorate and perchlorate types are made by dissolving organic or inorganic chlorates or perchlorates or both, in water or other solvent, with or without a solution assisting addition, admixing " gluing " substances such as starch, dextrine and gum arabic, and " improving " substances (i.e. pyrosaline, cellulose, coal dust, bast fibre shive dust, saw-dust, sulphur, or dyestuff), concentrating to a pasty consistency, admixing the paste with oily stabilizing substances (e.g. petroleum jelly paraffin, castor, linseed, or turpentine oil, resin, tar and tallow), slowly cooling the paste, and then either preparing blasting cartridges therewith, or sieving and granulating it to obtain gun and rifle powders, which are finally dried under moderate heat. Potassium chloride may be added to adjust the detonating power of the explosive, and nitrates (e.g. potassium nitrate) may also be mixed with the chlorate or perchlorate salts.
Patent GB-1489690-A (GB)
Title: Briquetting coal
IPC: C10L5/04
Filed: 1976-05-25
Abstract: 1489690 Briquetting coal COAL INDUSTRY (PATENTS) Ltd 25 May 1976 [4 July 1975] 28255/75 Heading C5G Coal is briquetted by (a) heating a low rank weakly caking high volatile coal in fine particulate form in oxygen at a temperature below the temperature at which substantial swelling of the coal normally occurs and for a time such that the property of the coal to swell during a further heating step to above the normal swelling temperature is reduced, (b) subjecting the coal from (a) to 600‹ to 900‹ C., (c) mixing the heated coal with a caking coal so that the mixing temperature is 400‹ to 500‹ C. and (d) briquetting the mixture without the addition of binder and without substantial drop in temperature. Step (a) may be effected in a fluidized bed using air as a fluidizing medium.
Patent GB-1504540-A (GB)
Title: Machine for wave-type tin soldering of printed circuits
IPC: B23K1/08
Filed: 1975-07-04
Abstract: 1504540 Soldering IEMME ITALIA SpA 4 July 1975 [19 Feb 1975] 28335/75 Heading B3R  A wave soldering machine comprises an inclined track, e.g. parallel guides 1, an endless reversible driving chain 2, a frame 5 fixed to the chain 2 for supporting a plate 6 carrying a printed circuit, a flux tank 7, a crucible 8 having a pump for producing a solder wave and a tray 12 for heating the plate 6. A soldering cycle disclosed comprises moving the plate 6 over the flux tank 7 where the lower surface receives the flux, passing the plate over the crucible 8 (with, however, no solder wave being produced) in order to preheat the plate 6, stopping the plate over the tray 12 which further preheats the plate, reversing the drive of the chain 2 so that the solder wave (now being produced from a mouth 9 by a pump driven by a motor 10) impinges on the plate 6. A pollution control device (Fig. 3, not shown) comprises a hood over the inclined track, a sucking fan and a filter for removing acid fumes and metal vapours.
Patent GB-426736-A (GB)
Title: Improvements in or relating to appliances for use in conjunction with teapots and similar articles
IPC: A47G19/14
Filed: 1933-10-13
Abstract: 426,736. Tea &c. cosies; table stands. RAYNER, G. V., 39, Beclands Road, and DEAN, S. W., 19, Broadwater Road, both in Tooting, London. Oct. 13, 1933, No. 28380. [Class 128] [See also Group XVII] An appliance for use with teapots &c. comprises a length or lengths of flexible material having one part formed to co-operate with the spout and another part with the handle. As shown, a thin sheet of rubber has a slit part 6 stretched over the handle, and a strip 5 having two apertures through one of which protrudes the spout and through the other a tongue 9 of absorbent material (for catching drips) connected to a stand consisting of the central part 4 of the sheet secured between two discs 7 of cork or asbestos. The discs 7 may be omitted, when the tongue 9 may be continued over the part 4, and the under part of 4 roughened. The parts 5, 6 may be separately formed and secured to the stand. The part 6 may be secured to the handle by press studs. The lid may be held in position by an extension of the part 6 having a suction device which embraces the knob and parts foldable to form a cosy, or by lateral extensions of the part 4 lying over the lid and joined to form a cosy. Another form consists of a cork disc having two elastic loops passing over the handle and spout.
Patent GB-1098733-A (GB)
Title: Herbicides
IPC: C07F5/00
Filed: 1965-07-05
Abstract: N - Alkyl - N,N - dimethylamine boranes are prepared by the transamination of tri-alkylamine boranes (in which the alkyl group contains up to 4 carbon atoms) with the appropriate N - alkyl - N,N - dimethylamine.  The trialkylamine by-product is removed as it is formed. In the examples, the preparation is described of N-(octyl, nonyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl and octadecyl) - N,N - dimethylamine boranes.ALSO:A herbicidal composition comprises an N-alkyl-N,N-dimethylamine borane (the alkyl group containing at least 8 carbon atoms), a carrier therefor and, when the carrier is a liquid, a surface-active agent.  Suitable solid carriers are lime, talc, clay, bentonite, calcium chloride, vermiculite and calcium carbonate.  Suitable liquid carriers are methanol, kerosene, toluene, diesel oil, xylene or benzene.  The surface-active agent can also be included in compositions containing a solid inert carrier.  In the examples, the herbicide employed is N-(octyl, nonyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, cetyl or octadecyl)-N,N-dimethylamine borane.
Patent GB-369875-A (GB)
Title: Improvements in and relating to the lubrication of internal combustion engines
IPC: F16N31/02
Filed: 1931-10-13
Abstract: 369,875. Collecting leakage oil from bearings. AVIONS, H. M. D. FARMAN, 167, Rue de Silly, Billancourt, Seine, France. Oct. 13, 1931, No. 28397. Convention date, Nov. 17, 1930. [Class 12 (i).] In an internal-combustion engine wherein oil leaking from the big-end bearing 3, Fig. 2, is projected, either direct or through a nozzle 6 secured to an overhanging cap 7 secured to the crank 2, into an annular collecting gutter 1 concentric with the crank shaft and provided at its lower part with an outlet 9, Fig. 3, the gutter is provided interiorly along at least part of its periphery with a circumferentiallyextending partition 10 spaced from the bottom of the gutter or with inclined transverse baffles 12, Fig. 11, so as to prevent a whirling motion being imparted to the oil in the gutter which would impede its flow through the outlet 9. A partition 11, Fig. 3, may be provided also in the outlet.
Patent GB-841148-A (GB)
Title: Improvements in printing machines
IPC: G03G19/00
Filed: 1956-09-18
Abstract: 841,148. Electrophotographic development. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 18, 1956 [Sept. 21, 1955], No. 28459/56. Class 98(2). [Also in Group XVI] In an electroferrographic printing machine, a compo-. site electrostatic and magnetic image formed on the surface of a printing plate is developed by means of a powder having tribo-electric and ferromagnetic properties, and comprising a mixture of carbonyl iron powder and an electroscopic toner. The toner may comprise a powder of carbon black, polybutyl methacrylate, and a polymerized blend of monomers of styrene and styrene homologues. The printing plate may be mounted-on a rotating drum (see Group XVI) and the printing process continuous and automatic. In a non-automatic process, the developing apparatus comprises a pair of holding clamps 21, 22, for the electroferroplate printing surface 10, in an oscil= latable structure 23 which is pivoted at 26 on a stationary frame 24. The developer powder 27 is arranged within the structure 23 and is cascaded over the surface 10 when the structure is oscillated.
Patent GB-1461434-A (GB)
Title: Winding button for a timepiece
IPC: G04B37/10
Filed: 1974-06-27
Abstract: 1461434 Watches R SOGUEL 27 June 1974 [29 June 1973] 28575/74 Heading G3T A crown 2 for attachment to a watch winding and setting stem 4 which passes through a case pendant 6 is made waterproof by use of at least one resilient sealing element, such as an O-ring 28, located within a cavity of the crown, the element being compressed axially between opposed projections 20, 22 so that it forms a seal against the outer surface 10 of the pendant and being restrained against radial expansion by a hard ring 30 which is spaced from the walls of the cavity. As shown the projections are formed on the body 12 of the crown and on a washer 16 attached thereto. The right hand side of Fig. 1 shows an alternative form using a rectangular sealing element and numerous other forms are described including the use of two sealing elements located one on each side of the stem of a restraining ring which is of T-section.
Patent GB-1223721-A (GB)
Title: Polyether polythioethers and their use as plasticisers
Inventor: SCHMELZER HANS-GEORG
IPC: C08G65/34
Filed: 1968-06-17
Abstract: 1,223,721. Polyether-thioethers; plasticizers for elastomers. FARBENFABRIKEN BAYER A.G. 17 June, 1968 [30 June, 1967], No. 28653/68. Headings C3P, C3Q and C3R. [Also in Division C2] A plasticizer for elastomers comprises a condensation product of 2-ethylhexanol, a polyethylene glycol mono-n-butyl ether of molecular weight 200-400 and thiodiglycol in a molar ratio of 0À8-2: 0À05-0À2 1 respectively. The products are prepared in the presence of an acid etherification catalyst, particularly an acid compound of trivalent phosphorus. These include tri -esters, amides and ester-amides as well as the acid salts and mono- and di-esters. A suggested formula for the products is C 4 H 9 O- (CH 2 CH 2 O) 3-8 -(CH 2 CH 2 SCH 2 CH 2 O) 2-5 -CH 2 - CH(C 2 H 5 )CH 2 CH 2 CH 2 CH 3 . Suitable elastomers which may be plasticized are polychloroprene, acrylonitrile-butadiene and styrene-butadiene copolymers, polybutadiene, poly-cis-1,4-butadiene and cis-1,4-isoprene and isoprene-isobutylene copolymers. From 1 to 50 parts of plasticizer may be blended with COO parts of elastomer. Vulcanizing agents, fillers &c. may be added.
Patent GB-1268787-A (GB)
Title: Rocking and reclining chair
IPC: A47C1/0355
Filed: 1969-06-06
Abstract: 1,268,787. Rocking reclining chairs. MOHASCO INDUSTRIES Inc. June 6, 1969 [July 31, 1968], No.28668/69. Heading A4J. A reclining chair which may rock, has a linkage mechanism for locking the rocking motion and arranged to secure the chair against forward rocking before it prevents rearward rocking. The linkage is operated by movement of the backrest into the reclining position. The foot-rest of Specification 1,268,788 may be fitted.
Patent GB-1014907-A (GB)
Title: Improved electron tube anode assembly
IPC: H01J19/46
Filed: 1963-07-19
Abstract: 1,014,907. Thermionic valves. RADIO CORPORATION OF AMERICA. July 19, 1963 [Aug. 23, 1962], No. 28757/63. Heading H1D. In an electron tube comprising a lead 28 secured to the envelope and carrying an electrode 26, the lead is provided with a plurality of spaced, laterally-extending flanges 56 which are held in contact with a top surface 58 of the electrode by a lip 60 encircling this top surface, and crimped downwardly over and between the flanges. As shown, the electrode is an inverted cup-shaped anode of a diode rectifier, and its top surface has a central boss 62 which fits between flanges 56. Slots 54 between the flanges 56 of tubular lead 28 permit escape of gases during outgassing of the tube.
Patent GB-613041-A (GB)
Title: Improvements in methods of producing alloy bodies
IPC: C22C33/02
Filed: 1945-10-30
Abstract: A method of producing dense, shaped metallic bodies comprises infiltrating one or more molten alloys into a shaped porous matrix containing the same constituents as those contained in the infiltrant but in a different proportion and having a higher melting temperature than the infiltrant, the infiltrating temperature being between the melting temperatures of the infiltrant and matrix.  The infiltrated matrix may be heat treated to diffuse the constituents of the alloys uniformly to form a single homogeneous single-phased alloy.  Heat treatment may be effected by control of the rate of cooling of the infiltrated matrix from the temperature of infiltration.  The production of shaped bodies containing respectively 70 per cent copper and 30 per cent zinc and about 64 per cent copper and about 36 per cent zinc is referred to.  The Specification also refers to the production of shaped bodies of ferrous alloys containing, for example, one or more of silicon, manganese, chromium, sulphur, aluminium, nickel, cobalt, tungsten and molybdenum and steels, e.g. of steels containing respectively 1.5 per cent carbon and 0.7 per cent carbon.
Patent GB-860685-A (GB)
Title: Improvements in or relating to electronic switching devices
IPC: H04N3/12
Filed: 1957-09-12
Abstract: 860,685. Transistor pulse-discriminating circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Sept. 12, 1957 [Sept. 24, 1956], No. 28771/57. Class 40 (6). [Also in Group XL (b)] A circuit is arranged with a high resistor 31 in the collector circuit of the transistor 1, Fig. 1, so that the potential of the collector V a  remains near earth potential except when the base current is near zero. Curve 1, Fig. 5, shows normal resistor and curve 4 the effect of using a much larger resistor 31, A being the gain of the stage. When the emitter-base circuit is biased forwardly the potential drop across the resistor 31 is sufficient to hold the collector near earth potential, and when the base emitter junction is negatively biased the collector potential is near the supply. A number of transistors 1 ...4 may be arranged with varying biases on them so that a saw-tooth wave V c  is effective at terminal 61 to cause the transistors to conduct in turn, Fig. 6, to allow the circuit to operate as a distributer of an input signal 60 (see Group XL (b)).