baber/WOPTO huggingface dataset:
Patent GB-311205-A (GB)
Title: Improvements in and relating to maize harvesting machines
IPC: A01D45/02
Filed: 1928-02-04
Abstract: 311,205. Surtees, S. F. Feb. 4, 1928. Rotary sieves. - A rotary cylindrical grading sieve for a maize thrashing-machine is mounted in bearings 40 on a frame 42 surrounding the sieve, the frame being carried by arms 43 suspended from pivots 44. The sieve is driven by a chain 59 engaging sprockets 53 or the periphery of the sieve, one of the chain sprocket-wheels 61 being mounted on a pivoted arm 63 which can be raised so as to permit removal of the sieve. Each arm 43 is secured to the frame 42 by a clamp comprising two members 46, 50, Fig. 12, bolted together, and having inter-engaging serrated faces so that the inclination of the sieve may be adjusted, preferably sloping downwards from the feed to the discharge end. The oscillations of the sieve due to sudden feeding of maize or to rough ground are damped by two V-shaped bars, each of which is pivoted at its apex on a pin 64<a> and carries two knife-edges 65 which are in close proximity to the frame 42 on each side of the clamp. The outside of the sieve is cleaned by leather strips 71 carried by hinged bars 69. The perforations of the sieve increase in size towards the discharge end and the maize is collected in a bin, 45 which is divided by movable plates 72.
Patent GB-805279-A (GB)
Title: Process for the production of iron
IPC: C21B13/08
Filed: 1957-02-01
Abstract: 805,279. Reducing iron ores. UNTERNEHMUNGEN DER EISEN-UND STAHLINDUSTRIE A. G., FUR. Feb. 1, 1957 [Feb. 4, 1956], No. 3585/57. Class 72 In a process in which iron ore and carbonaceous fuel are charged into one end of a rotary furnace and an oxidizing gas introduced at the other, the iron being produced in a lumpy condition, the oxidizing gas is introduced with sufficient velocity to give a pressure throughout the furnace greater than atmospheric. As shown, a furnace 1 may have a baffle ring 4 which extends into a discharge head 3, and a blast pipe 5 in the discharge head which stops short of the baffle ring. The oxidizing gas may be introduced at a velocity of 10 to 30 metres per second to give lumps of iron of low carbon content or, in a modification of the process at 50-150 metres per second to give liquid iron containing above 1.5 per cent carbon. Part of the gas may be introduced through the blast pipe and the remainder by injection action through the baffle or through a second blast pipe at a lower velocity.
Patent GB-1095843-A (GB)
Title: Device for electronic control of shutter speed of photographic cameras
Inventor: ESCH WALTER
IPC: G03B7/083
Filed: 1965-01-27
Abstract: 1,095,843. Photographic cameras. PENTACON DRESDEN KAMERA-und KINOWERKE VEB. Jan. 27, 1965, No. 3590/65. Heading G2A. A photographic camera shutter includes a time control circuit having a relay for effecting opening and closing of the shutter. A photo-resistor 2 and capacitor 3 are connected to a transistor, the collector of which is connected to galvanometer 6. The collector of a second transistor 11 is connected to the winding of an electromagnet 15. Armature 16 of the electromagnet pivots clockwise about 17 against the action of a spring 18. Two catches 20, 24 effect the drive of shutter blades (not shown). In operation, the switch 9 is closed such that galvanometer 6 indicates on a scale the exposure time. Switch 28 is then closed such that transistor 11 conducts to energize electromagnet 15 and transistor 1 does not conduct. Armature 16 pivots to release catch 20 which effects or permits opening of the shutter blades. Catch 20 releases a bolt 22 which in turn releases catch 24 which is then prevented from moving by contacts with armature 16. After a delay, during which capacitor 3 becomes charged and as a result transistor 1 conducts and transistor 11 becomes non-conductive, the winding of electromagnetic 15 is de-energized. The catch 24 is then able with spring 18 to rotate armature 16 counter clockwise and so close the shutter blades. The shutter release may be delayed e. g. for flash exposures by a capacitor 12 discharged through a resistor 13. For selfportraits, a capacitor 14 is connected in parallel with the capacitor 12, to increase the delay. A capacitor 5 is connected in parallel with capacitor 3 through a variable resistor 4 to provide for under or over exposure.
Patent GB-524704-A (GB)
Title: Improvements in or relating to four-stroke cycle internal combustion engines
IPC: F02M69/00
Filed: 1939-02-03
Abstract: 524,704. Four-stroke-cycle oil engines. BRANDENBURGISCHE MOTORENWERKE GES. Feb. 3, 1939, No. 3701. Convention date, Feb. 3, 1938. Drawings to Specification. [Class 7 (ii)] The opening periods of the inlet and exhaust valves overlap by at least 80 degrees of crank angle. The periods of both the inlet and exhaust valves preferably correspond to 300-330 degrees of crank-angle, the time of opening of the two members being 180 degrees out of phase, giving an overlap of open periods of 135 degrees or more. The extent of overlap may be varied, either manually or automatically by the use of divided cam drums. Such variation may be effected conjointly with that of engine auxiliaries.
Patent GB-677066-A (GB)
Title: Improvements in or relating to the forming of curved surfaces
Inventor: HOCKLEY FRANK HERBERT
IPC: B23C3/16
Filed: 1949-02-11
Abstract: 677,066. Copy-milling. FAIREY AVIATION CO., Ltd. Jan. 9, 1950 [Feb. 11, 1949], No. 3828/49. Class 83 (iii). [Also in Group XXIII] A milling, grinding or like machine for forming a curved surface such as that of an aerofoil rib 19 or 20, comprises a work-holder 16 supported at its ends on profile cams 17, 18 in rolling contact with plates 14, 15, a tool 10 traversable along the length of the work-holder between the contact plates, means to maintain the work-holder in any desired position relatively to the tool, and adjusting-means for presenting different faces of the work to the tool while the profile cams are maintained against the contact plates. The work-holder is balanced by counterweights 25 connected to it, at the level of its centre of gravity, by cables 21 which pass over a beam 23 pivoted on a vertical axis to allow for cross-traversing movements. The work-pieces are dependently mounted between the profile cams and, if the aerofoil is of sweptback formation, they are mounted in an inclined position as shown at 20; if the aerofoil is of tapered form, one cam is of larger crosssection than the other. A spindle 33 connected by a universal joint to the work-holder is splined to a worm-wheel on a carriage 35 which is slidable vertically on a bracket 28 transversely adjustable on the machine frame. In operation, with the cam bearing on the profile plates 14, 15, under the pressure of adjustable springs 36 acting on the carriage, an end-mill cutter 10 is traversed past the work-pieces to produce a facet of the required form and after each traverse, the work-holder is rotated slightly by a hand wheel 42 and the worm-wheel to present another part to be cut, the cams being maintained in contact with the plates 14, 15. Subsequently, the facets may be removed by exchanging the milling cutter for a grinding or sanding wheel.
Patent GB-1094497-A (GB)
Title: Novel 2-hydroxyalkyl substituted copolymerisation products, a method of preparing these products and the use thereof as a molecular sieving medium
IPC: C08B15/00
Filed: 1965-01-29
Abstract: A 2-hydroxyalkyl substituted copolymerization product comprises a three-dimensional macro-molecular network of hydroxyl-group containing substances, bonded together by ether bridges of the general type -R-O-Y-O-R- where R is a residue of the hydroxyl-group containing substances and Y is an aliphatic radical containing 3 to 10 carbon atoms, the chain of which may be interrupted by ether groups, the 2-hydroxyalkyl substituents being of the formula <FORM:1094497/C3/1> where R1, R2, R3 and R4 are hydrogen alkyl, aryl, aralkyl or alkyl the chain of which is interrupted by oxygen; R1, R2, R3 and R4 together containing not more than 8 carbon atoms.  The substituted copolymerization product is insoluble but swellable in chloroform and has a molar degree of substitution (i.e. the average number of 2-hydroxyalkyl substituents per hydroxyl group) of at least 50%. The products may be made by reacting the water-swollen copolymer under alkaline conditions with one or more substances of formula <FORM:1094497/C3/2> where R1, R2, R3 and R4 are as previously defined, or with substances capable of forming compounds of the above formula under alkaline conditions.  Alternatively, the hydroxyl-group containing substance may be substituted by 2-hydroxyalkyl groups before copolymerization. Specified hydroxyl-group containing compounds are dextran, starch, dextrin, cellulose, polyglucose, hydroxyethyl cellulose, polyvinyl alcohol, sorbitol, and saccharose. The bifunctional compounds with which they may be copolymerized include epichlorohydrin, dichlorohydrin, 1,2-3,4 - diepoxybutane, bis - epoxy - propy ether, ethylene glycol - bis - epoxypropyl ether, and 1,4-butan-diol-bis-epoxypropyl ether. Specified etherifying agents for 2-hydroxyalkylation include 1,2-epoxypropane, 1,2-epoxybutane, 1,2 - epoxypentane, 1,2 - epoxyethyl - benzene and 1,2-epoxy-3-isopropoxypropane. Examples disclose the reaction of a dextran/epichlorohydrin copolymer with 1,2-epoxypropane (Examples 1 and 3), 1,2-epoxybutane (Examples 2 and 4) 1,2-epoxy-3-isopropoxypropane (Example 8) and 1,2-epoxyethel-benzene (Example 9); reaction of a dextran/1,4-butandiol-bis-epoxypropyl ether copolymer with propylene oxide (Example 5); reaction of sorbitol/epichlorohydrin copolymer with propylene oxide (Example 6); reaction of hydroxyethyl cellulose/epichlorohydrin copolymer with propylene oxide (Example 7).  The copolymers may be obtained in granular or particle form (Specification 974,054) and the substituted products are used as molecular sieving media.
Patent GB-1356488-A (GB)
Title: System for storage and subsequent use of energy
IPC: F02C6/16
Filed: 1972-01-27
Abstract: 1356488 Gas turbine plant-compressed air storage GULF OIL CORP 27 Jan 1972 [12 Feb 1971] 3927/72 Heading F1G The invention relates to a method of compressing air, the air under pressure also the heat of compression being stored and subsequently utilized in a prime mover. In the system shown a motor alternator 17 is provided and may be connected to a compressor 19 by means of a clutch 18, the machine 17 then operating as a motor receiving power from an external network, or the machine 17 may be connected to a turbine 26 by means of a clutch 23, the machine 17 then operating as an alternator and supplying power to an external network. In the first mode of operation electrical energy is available and the compressor supplies air through valves 28, 32 to a regenerator 33 which is an underground cavity filled with heat storage material; the cooled air under pressure then passes to a storage chamber 12 which is pressurized by water in a surface reservoir 16 connected to the chamber 12 through line 14. At peak power demand the valve 28 is switched so that air under pressure discharges from the chamber 12 to the regenerator 33 whereby the air is heated and the heated air passes through the line 36 to drive the turbine 26, the turbine now driving the machine 17 as an alternator. Combustion equipment may be provided in the line 36 whereby the heated air from the regenerator is further heated before passing to the turbine. The compressor may comprise two or more stages with intercooling between the stages. In a plant capable of storing 1, 000, 000 kilowatts for a ten hour period, the storage chamber would have a volume of about 1À7 million cubic yards, and the regenerator a volume of about 100, 000 cubic yards.
Patent GB-1355931-A (GB)
Title: Optical glass
IPC: C03C4/12
Filed: 1972-01-27
Abstract: 1355931 Glass composition EASTMAN KODAK CO 27 Jan 1972 [29 Jan 1971] 3940/72 Heading C1M An optical glass consists in percentage by weight of La 2 O 3  15-30; ThO 2  20-45; Ta 2 O 5  24-40; B 2 O 3  4-10; SiO 2  1-9; GeO 2  1-6; ZrO 2  0-10; TiO 2  0-5; Bi 2 O 3  0-5; PbO 0-6; K 2 O 0-2; BaO 0-5; ZnO 0-5; As 2 O 3  0-2. The glass has a refractive index of 1À90 or above and an Abbe number in the range 30-40.
Patent GB-454995-A (GB)
Title: Improvements in sliding clasp fasteners
IPC: A44B19/04
Filed: 1936-02-10
Abstract: 454,995. Sliding-clasp fastenings. BIGEARD, J., 21, Rue de l'Arboust, Nogentsur-Marne, France. Feb. 10, 1936, No. 4003. [Class 44] The elements 5 of a sliding-clasp fastener are of channel form each being provided with an integral hook portion 9 and are secured to the stringer tapes by the legs being turned at the ends 7 to engage behind the tape beading while inturned points 8 on the upper and lower edges of the legs pierce the beading ; a space is left between the beading and the base of the channel to receive the hook portion of the cooperating element on the other stringer tape. Fig. 5 shows a stamped blank for the element prior to being bent to shape. The parts 12, 13 may be bent to give suppleness to the fastener. The elements may have spacing fingers 10 extending in the direction of the length of the tapes and parts 11 may be turned inwardly to engage the front edge of the beading.
Patent GB-1170115-A (GB)
Title: Protection of Organic Materials from Ultraviolet Radiation
IPC: C07C233/00
Filed: 1967-01-26
Abstract: 1,170,115. Sunscreen compositions. CIBA Ltd. 26 Jan., 1967 [7 Feb., 1966], No. 4023/67. Heading A5B. [Also in Divisions C2, C3 and C5] A cosmetic composition capable of absorbing ultraviolet radiation comprises an inert physiologically acceptable carrier for topical application and an oxalic acid ester amide of the formula in which X is a substituted or unsubstituted C 1-18  alkyl, alkenyl, aralkyl or aliphatic or aromatic acyl group; Y is a C 1-12  alkyl, halogenalkyl, phenyl, nitrile, nitro, alkylamino, phenylalkyl group whose alkyl residue is C 1-4  sulphonic acid or sulphonamide group or halogen atom or in which two ortho-positioned Y residues together form a fused-on six-membered aromatic carbon ring, and R is a C 1-18  alkyl, C 1-6  alkoxy-alkyl, benzyl, a phenyl group which may be substituted by OH or C 1-8  alkyl, a cyclohexyl or a furylmethyl group and u and v=0, 1 or 2 and n+v=1 to 3. In examples a cosmetic sunburn preparation comprises (10) cetyl alcohol, stearyl alcohol, sodium lauryl sulphate, polyethylene glycol distearate, diethylene glycol monostearate, isopropyl myristates, paraffin oil, polyethylene glycol, phydroxybenzoic acid methyl ester, water and a compound of formula respectively; and (11) a compound of formula (19), (27) respectively.
Patent GB-520320-A (GB)
Title: Improvements in apparatus for priming centrifugal pumps and the like
IPC: F04D9/06
Filed: 1939-02-07
Abstract: 520,320. Centrifugal pumps. FORD MOTOR CO.. Ltd., and PAGE, E. Feb. 7, 1939, No. 4038. [Class 110 (i)] A centrifugal pump is primed by means of an ejector 5 to which the exhaust gases of an internal-combustion engine are led when the valve 9 is moved to its other extreme position. The movement of the valve lever is accompanied by movement of a lever 10 which opens a spring-loaded valve 8 between the ejector and the pipe 7 to the pump.
Patent GB-214376-A (GB)
Title: Improvements in or relating to envelopes, bags and like receptacles
IPC: B65D27/22
Filed: 1923-02-10
Abstract: 214,376. Osmond, G. E. Feb. 10, 1923. Securing bags, special means for.-The sealing flap a<1> of a paper bag envelope a is extended or provided with a tab c to pass under a loop b formed of paper, fibre &c. and secured to the back of the bag &c. Means such as a disc d of cardboard or a piece of bendable sheet-metal are secured to the flap c to project slightly from its surface so as to engage the loop b. The upper end of the flap c may project slightly from the bag &c. to afford a finger-grip. According to the Provisional Specification, the flap c may take the form of an annulus engaging a disc secured to the bag, &c.
Patent GB-1246956-A (GB)
Title: Improvements in and relating to bulb-socket assemblies
Inventor: MAGI HUGO
IPC: F21V19/00
Filed: 1970-01-28
Abstract: 1,246,956. Lamp holders. DOMINION AUTO ACCESSORIES Ltd. 28 Jan., 1970 [12 Feb., 1969], No. 4091/70. Heading H2E. A lamp holder assembly for a motor vehicle comprises a resilient insulating body 11 provided with a socket aperture 14, a first terminalreceiving aperture 20 of rectangular cross-section which perpendicularly meets the socket aperture 14, and a second terminal-receiving aperture 21, which also meets the socket aperture 14. A first terminal 50 of U-shaped metal is located in the aperture 20 to contact the centre terminal of a lamp inserted in the socket aperture 14 and is provided with two parallel ribbons 62a, (62b, Fig. 6, not shown) in the arm 56 to lock in a conducting wire (58, Fig. 1, not shown). A second terminal 68 comprises a strap 70 with portions 71, 72 which are inserted in the aperture 21, the portion 72 lying in a groove 44, in the socket aperture, and extending arms 74, 75 with apertures 78 for earthing to a vehicle body. A socket contact 80 is locked in the aperture 44 by means of tabs 84, 85 which fit in a groove 42 with a recess (46, Fig. 2, not shown) and a tab (92, Fig. 4, not shown) fitting in the aperture 21 which also establishes electrical contact with portions 72, 72 of the earthed terminal 68. The socket member is provided with J-slots 86 to lock in a lamp.
Patent GB-143598-A (GB)
Title: Improvements in the construction of reinforced concrete floors
IPC: E04B5/04
Filed: 1919-09-17
Abstract: 143,598. Waller, J. H. de W. Sept. 17, 1919. Joist floors with slab filling. - In forming a floor of precast reinforced-concrete beams and slabs, the slabs are supported clear of the beams by supports O, P secured to the beams and forming part of the mould for the concrete filling cast between the beams and the edges of adjacent slabs. The projecting ends of the reinforcements of the beams and slabs overlap and are embedded in the concrete filling. Where the beams are laid with adjacent ends on partitions or other supports, the junction is strengthened by bars R substantially in the upper plane of the floor. The supports 0, P may be temporary or permanent.
Patent GB-412335-A (GB)
Title: Improvements relating to the presser-levers for slashers or sizing machines
IPC: D06B23/00
Filed: 1933-02-11
Abstract: 412,335. Warp - sizing machines. HOWARD & BULLOUGH, Ltd., and IRVING, J., Globe Works, Accrington, Lancashire. Feb. 11, 1933, No. 4201. [Class 142 (iv).] The presser rollers 5 of a slasher or sizing- machine are pressed against the warp beam by a lever 11 that is pivoted on the usual cross shaft 10 and is provided with a roller 13 for engagement with a weighted and independently pivoted lever 12. The arrangement permits a constant pressure to be maintained by the part 11<x> of the lever 11 during the winding operation.
Patent GB-952001-A (GB)
Title: Improved cushion or pad
Inventor: PINCHIN JOHN RICHARD
IPC: A47C27/14
Filed: 1962-02-03
Abstract: 952,001. Cushions. SLUMBERLAND GROUP Ltd. Jan. 29, 1963 [Feb. 3, 1962], No. 4231/62. Heading A4M. A cushion of foamed plastic 12 incorporates a peripheral unit 10 of granulated plastic and a central unit 11, the cushion being made by locating the units 10, 11 in a mould in their correct relative positions and filling the mould with foamed plastic 12. Specification 950,021 is referred to.
Patent GB-904851-A (GB)
Title: Improvements in or relating to organosilicols and organopolysiloxanes
IPC: C08G77/00
Filed: 1961-02-03
Abstract: Compounds of the general formula HO[(XC6H4) (Y2C6H3) SiO]nH in which X is a fluorine, chlorine or bromine atom, each Y is a chlorine or bromine atom and n is an integer from 1 to 10, may be made by reacting Grignard reagents of suitable halogenated benzenes with SiCl4 by known procedure and neutralizing the Si-bonded chlorine, e.g. by dropping the resulting diorgano dichlorosilane into excess NaHCO3 in water.  The resulting diols can be polymerized or copolymerized with up to 90 mol. per cent diphenyl- or phenylmethyl-siloxanes, by heating the diols or mixtures of the diols with the appropriate silicols, e.g. diphenylsilane diol and/or phenylmethylsilane diol, at temperatures up to 200 DEG C. in the presence of a catalyst, e.g. tetramethylguanidine 2-ethylhexoate. The homo-polymers range from liquids to glassy, thermo-plastic solids, while the co-polymers are tough, elastic, non-crystalline and non-glassy polymers.  In typical examples, (1) a Grignard reagent, obtained from Mg and 1-bromo-3,4-dichlorobenzene, was reacted with a mixture of o, m and p-monochlorophenyltrichlorosilane isomers to yield a mixture of o, m and p-chlorophenyldichlorosilanes which on hydrolysis yielded a mixture of diols of the general formula <FORM:0904851/IV(a)/1> this diol mixture was heated (2) in the presence of tetramethylguanidine 2-ethylhexoate to yield a homopolymeric gum, and (2) with diphenyl silane diol, using the same catalyst, to yield a copolymeric gum.  Uses: besides their use for preparing homo- and co-polymers, the silicols are useful as lubricants and as stock for drawing fibres or for laying down free film coatings from solvent solutions.
Patent GB-1005641-A (GB)
Title: Dihalocarbene addition products of unsaturated carboxylic acids
Inventor: DORP DAVID ADRIAAN VAN
Filed: 1962-02-05
Abstract: Carboxylic acid derivatives containing dihalocyclopropane rings are prepared by reacting a dihalocarbene with an olefinically unsaturated aliphatic carboxylic acid having its carboxyl group protected with a non-protonic radical, e.g. as a salt or an ester, e.g. an alkyl or glyceryl ester.  Temperatures between -90 and + 20 DEG  C. may be used.  The products may be used as plasticizers and may be converted to the free acid by hydrolysis or to other esters by alcoholysis. In examples, dichlorocarbene is produced from hexachloroacetone and sodium methoxide or from chloroform and potassium t.-butoxide and reacted with methyl oleate (to give methyl 9,10-dichloromethylene octadecanoic acid), methyl linoleate, methyl linoleneate, linseed oil, soybean oil and methyl elaidate.
Patent GB-305115-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M9/12
Filed: 1927-11-16
Abstract: 305,115. Dexter, A. D. Nov. 16, 1927. Spray-carburettors. - The carburettor comprises an induction pipe portion 13, a choke tube 15 therein, an iris diaphragm 16 actuated by an arm 17 attached to a sleeve 18, and a fuel nozzle 12 extending laterally through the choke tube with its axis inclined to the axis of said tube and directed towards the diaphragm, its outlet terminating substantially on said axis at the restricted portion of the choke tube. An additional sleeve 18<1> may be provided, the leaves of the diaphragm being pivoted to both sleeves, so that by actuating the arm of one or other of the sleeves the diaphragm may be either opened or closed bv movement of the arm in the same direction. While one sleeve is being actuated the other may be held against rotation by a screw. This provision facilitates the connecting up of the carburettor to its actuating mechanism. An additional diaphragm may be provided on the airinlet side of the nozzle 12. Fuel is fed to this nozzle from a float chamber 1 through a conduit 9, Fig. 3, and another conduit 10 containing a filter 11 which may be removed through an aperture closed by a screw 10'. A gauze filter 14 is provided in the air inlet.