baber/WOPTO huggingface dataset:
Patent GB-899636-A (GB)
Title: Improvements in mechanical stokers
Inventor: SWORD JOHN NICHOLSON
IPC: F23K3/16
Filed: 1958-06-13
Abstract: 899,636. Hopper feed for stokers. NIAGARA ENGINEERING CO. Ltd. June 15, 1959 [June 13, 1958], No. 19060/58. Class 78 (1). Fuel is fed to the pivotally-bladed rotor 2 for projection into a furnace, by means of pushing or agitating plates 7, 11, which reciprocate in opposite phase over the respective sides 5, 6 of the hopper. The plates are operated from shaft 10 through cranks 8, 9 and 12, 13, respectively. Sliding gate 15 is operated by screw 21 reciprocated by nut 23 rotated manually by chain 24. Specifications 467,223, 467,224 and 701,600 are referred to.
Patent GB-1202828-A (GB)
Title: Winching devices for tipper lorries
Inventor: TERHO MIKKO
IPC: B60P1/64
Filed: 1969-04-14
Abstract: 1,202,828. Winches; loading vehicles. AUTOLAVA OY. 14 April, 1969, No. 19067/69. Headings B8B and B8Q. A device for winching a detachable load carrying member 4 on to a vertically tiltable member 3 provided on a lorry, comprises a shaft 8 mounted transversely of the lorry at the front end of the member 3 and carrying two winch drums 9, the shaft 8 being mounted such that it will assume a skewed position in a plane parallel to the member 3 when the stresses in cables 10 between the drums 9 and load carrying member 4 are unequal, whereby the stresses tend to be equalized. The front ends of the two side beams 14 of the member 3 are provided with elongated retainers in which bearing sleeves carrying the shaft 8 are slidable longitudinally of the lorry, the movement in one direction by one end of the shaft 8 causing a thrust to be applied in the opposite direction to the other end of the shaft 8. The device for transferring this thrust comprises a rod pivoted to each shaft bearing sleeve and slidable within forwardly extending portions of a U-shaped hollow guideway mounted on the tiltable member 3, the guideway between the thrust rods being filled entirely with balls or rollers depending on the cross-section, or by a combination of thrust rods and balls or rollers. Alternatively, the thrust may be transferred completely by a lever system. The shaft 8 is driven by an hydraulic motor 7 mounted thereon, the casing of the motor having a reaction member in sliding engagement with the tiltable member 3. The motor 7 acts as a pump to steady the member 4 as it gravitates down the tilted member 3 during unloading.
Patent GB-596281-A (GB)
Title: Improvements in or relating to the screen or block printing of textiles
IPC: B41F15/08
Filed: 1945-07-26
Abstract: An adhesive for sticking textile material to a waterproof overlay sheet prior to printing, comprises a solution of two parts by weight of vinyl isobutyl ether polymer in ten parts by weight of xylene; the latter may be replaced by ligroin, or a mixture of the solvents may be used.
Patent GB-857150-A (GB)
Title: Improvements in low shrinkage silicone rubber
IPC: C08K3/36
Filed: 1957-06-18
Abstract: A silicone rubber-forming composition comprises, by weight, (1) 100 pts. of a methylvinylpolysiloxane convertible to the cured, solid, elastic state containing an average of from 2,0 to 2,005 total methyl and vinyl radicals, from 0,05 to 2% of the Si atoms being connected to at least one and not more than two vinyl radicals, (2) from 75 to 150 pts. of a finely divided mixture of silica fillers composed of (a) a precipitated silica having an average particle size of from 20 to 25 m  m  and a surface area of about 140 to about 160 square metres per gram, and (b) a diatomaceous earth having an average particle size of between 1,000 and 6,000 m m  and having a surface area of about 15 to about 30 square metres per gram. (b) being present in amount of from 60 to 85% by weight of (a), and (3) from 0,5 to 2,0 pts. of bis-(2:4-dichlorobenzoyl) peroxide.  Benzoyl peroxide may also be added.  The siloxane is desirably freed of volatiles, as disclosed in Specification 773,325, prior to incorporation of the fillers and peroxide.  Compositions of the above formulation are given in Examples 2 and 3 in which the siloxane used is obtained (Example 1) by heating a mixture of octamethylcyclotetrasiloxane, a hydrolyzate of methylvinyldichlorosilane and KOH to 150 DEG -170 DEG C. for 1 hour to give a viscous polymer which was freed from KOH by washing with water on a doughmixer, with subsequent heating at 175 DEG C.-200 DEG C. to steam strip volatiles.  Uses: for making gaskets and other moulded products. Specification 618,451 also is referred to.
Patent GB-147430-A (GB)
Title: Improvements in wireless telegraph transmission
IPC: H04L27/04
Filed: 1920-07-07
Abstract: 147,430. Ges. f³r Drahtlose Telegraphie. Dec. 24, 1915, [Convention date]. Wireless signalling.-To superimpose a musical note on the waves generated by a Poulsen arc, the high-frequency circuit 3, 4 is coupled to the aerial by a closed iron transformer 6, and one winding of the transformer is excited by a low-frequency alternator 12, or a low-frequency alternator is used in place of the continuous source 2 to sustain the arc 1. The low-frequency current may be passed through one of the windings 5, 7 instead of a separate winding.
Patent GB-531546-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/30
Filed: 1939-07-04
Abstract: 531,546. Suction cleaner fans. HOOVER, Ltd. July 4, 1939, No. 19378. Convention date, July 11, 1938. [Class 110 (i)] The fan casing 10 of a suction cleaner is moulded on to a steel liner 40 provided with a reinforcing band 46 and locating studs 47, 48 which extend through the casing wall. The casing may consist of a thermo-setting substance or aluminium &c.
Patent GB-124187-A (GB)
Title: Improved Method of Mounting the Suspension Springs of Vehicles.
Inventor: FELIP MERCEDES NADAL Y
IPC: B60G11/113
Filed: 1918-11-25
Abstract: 124,187. Nadal y Felip, M. Nov. 25, 1918. Shock of landing, deadening.-To prevent lateral distortion of the suspension springs of vehicles as the wheel axes tilt laterally, the spring-engaging members on the axle are capable of rotation about the spring, and the parts engaging one spring also allow movement of the spring longitudinally of the axle. Fig. 3 shows the springs 3 clamped in members 9 of which the one on the left can turn between upper and lower cylindrical surfaces of a member 7, 8 secured to the axle, and the one on the right can slide between parallel, straight, or curved surfaces of an intermediate member 12 which turns in a member 7, 8 similar to the one on the left of the axle. According to the Specification as open to inspection under Sect. 91 (3) (a), the springs are connected to the axle or undercarriage through eccentrics, balls, slide blocks, grooves or springs, and the invention may be applied to aircraft undercarriages. This subject-matter does not appear in the Specification as accepted.
Patent GB-630563-A (GB)
Title: Magnetic recording medium and methods for making the same
IPC: G11B5/64
Filed: 1946-06-28
Abstract: 630,563. Electrodepositing magnetic recording medium. BRUSH DEVELOPMENT CO. June 28, 1946, No. 19460. Convention date, Aug. 30, 1945. [Class 41] [Also in Group XXXVIII] A magnetic recording medium (see also Group XXXVIII) comprises a thin elongated, preferably tapelike reelable core 10 on which is electrolytically deposited a layer of magnetic material from the group comprising cobalt, nickel, iron, molybdenum, manganese and tungsten, the electrolyte comprising an aqueous solution containing boric acid and a sulphate salt or chloride salt of the metal to be deposited or a mixture of the salts. A pulsating current is passed through the solution with the core as cathode, the R.M.S. value of the alternating current being from 2 to 5 times the average direct current and the current density being between 20 and 300 amperes per sq. ft. The solution is maintained at a pH value between 2 and 6 and with a metal concentration between 25 and 150 grams per litre. The tape 10 is guided through plating both vessels 21 by members 22, 23, 24, 25, the members 24 serving also as polishing members and the members 25 conveying current to the tape as cathode. The anode 31, in the case of two or more metals being deposited, may be an alloy or a plurality of ba,rs of the metals. Barriers 35 consisting of perforated plates or screens of ceramic material are provided to compensate for voltage drop in the tape, and to equalize the current distribution along the portion of the tape passing through the bath. The plating may be done on one side only of the tape in which case the other side is prevented or protected from contact with the solution. When both sides of the tape are to be plated means are provided for passing the tape in reverse direction through the baths with the other side of the tape facing the anode. Each plating vessel 21 has an inclined base terminating in an outlet 42 through which impurities may be discharged into a collecting vessel 41. The controls of this vessel are pumped to a purifying apparatus 46 where the solution is filtered and purified and restored to its original composition and hydrogen-ion concentration before return to the plating vessels. The tape 10 instead of passing along the top of a plating vessel may pass around a rotatable cylindrical guide immersed in the solution. In the arrangement shown in Fig. 5, the tape passes several times around a cylinder 23, a smaller cylinder 26 being provided so that only one side of the tape is exposed to the solution. The tape before being plated is subjected to polishing, degreasing by trichlorethylene vapour and chemical cleaning in a bath of potassium hydroxide and potassium cyanide.
Patent GB-1466017-A (GB)
Title: Non-return valve
IPC: F16J15/06
Filed: 1975-05-09
Abstract: 1466017 Valves MACHINEFABRIK MOKVELD BV 9 May 1975 [12 June 1974] 19577/75 Heading F2V In a check valve having a piston-like closure member 13 coacting with a seating 17, a streamlined annular passage is formed between an outer housing 3 and an inner housing 1 in which the closure member is mounted, the inner housing being mounted by webs 6. One or more ejectorlike holes 8 are provided between the interior of of the inner housing and the narrow part of the flow passage in which the velocity is at a maximum. This produces a reduced pressure on the back face of the piston which prevents it from fluttering.
Patent GB-905089-A (GB)
Title: Improvements in or relating to room temperature control apparatus
IPC: F24D19/10
Filed: 1960-06-02
Abstract: 905,089. Fluid-pressure servomotor-control systems. LANDIS & GYR A.G. June 2, 1960 [June 5, 1959], No. 19585/60. Class 135. Apparatus controlling the temperature of a room having a plurality of heat exchangers comprises servo-controlled valves controlling the flow through the exchangers in which one exchanger is provided with a regulating valve responsive to room temperature and the valves of the other exchangers are actuated in response to the regulating valve. The regulating valve 9 comprises a gate valve member 11 controlling the flow through passage 19 to the exchanger, the valve being connected to a diaphragm 26. A temperature-sensitive element 10 controls the position of a double control valve member 24 which controls leakage of fluid from a high-pressure chamber 17 to a chamber 22, the chamber 17 being fed from the passage 19 upstream of a Venturi-shaped section of this passage. The valve control members 13 of the other heat-exchangers comprise a movable valve member 15 secured to a diaphragm 18 which forms a chamber 14 connected by a line 16 to the high-pressure chamber 17, thus when the valve 11 is closed due to the pressure in chamber 17 so will the valves 15 close. The double valve member 24 provides control when either heating or cooling medium is being passed through the exchanger and the changeover from heating to cooling or vice versa is effected automatically by a known device provided in the regulating valve 9.
Patent GB-457667-A (GB)
Title: Improvements in and relating to electric switches, suitable for light currents
IPC: H01H19/64
Filed: 1935-07-09
Abstract: 457,667. Mechanical switches without quick action. BULGIN & CO., Ltd., A. F., and BULGIN, A. F., Abbey Road, Barking, Essex. July 9, 1935, No. 19598. [Class 38 (v)] A light-current switch comprises a pair of insulating discs 10, 11 carrying fixed contacts 12 and clamped at a fixed distance apart by tubular rivets on which are arranged large spacing washers 17 and smaller central spacing washers 18. A rotor 21, carrying contacts 23 for engaging the fixed contacts 12, comprises an insulating disc which is guided by the gap between the spacing washers 17 and which has opposite wings 22 which engage the washers 18 to determine the end positions of the switch. Any number of such switch units may be stacked and clamped together by nuts on spindles passing through the tubular rivets. An end unit comprises a serrated rotor which engages a pair of spring- pressed rollers to locate the switching positions. All the rotors are adapted for ganged operation by a squared spindle 26 passed through squared holes in the rotors. The fixed contacts are made of copper coated with soft solder.
Patent GB-192667-A (GB)
Title: Improvements in and relating to the control of railway trains
IPC: B61L23/22
Filed: 1922-07-17
Abstract: 192,667. Underwood, W. J. July 17, 1922. Addition to 180,757. Electrical systems, non-automatic.- In a railway signalling system as described in the parent Specification, a relay 39, controlling the trainstop circuits is provided in connection with each switch 1, and is so connected with the signalling circuits, and with insulated track rails at the ends cf the sections that a train entering the section de-energizes the relay, which can be reenergized only by the train as it leaves the section. The bonding of rails throughout the section is obviated. The relay armatures 45, 37 are normally raised by a current from a battery 77 flowing through a fine wire winding 82 and the armature 45, so that, when the switch 1 is moved to the right to permit a train to leave the line 5 for the station B, current from a battery 35 flows through the armature 37, switch 1, trip coil 6 and the switch 1 and armature 56 to earth at station B. The coil 6 lowers a train trip-lever so that the train can leave the line 5. The first pair of wheels bridges the rails 88, 90, thereby short-circuiting the battery 77 so that the armatures 45, 37 fall and cannot be raised, and therefore the trip-coil 6 cannot again be energized from the battery 35 until the train passes over the rails 109, 112 at station B when current flows from the battery 77 through a thick wire winding 81 of the relay 39, line 84, switch 114, rails 109, 112 to earth. The relay 39 raises its armatures, and the winding 82 then retains them, but has not sufficient power to raise them alone. The cycle of operations is similar for trains in the opposite direction. Switches 80 may be provided to break the circuit of the batteries 77 if a vehicle bridges the rails 88, 90, or 86, 89 for any length of time. For a similar reason switches 95 may be provided in connection with the rails 89, 93, or a switch operated by the wheel flanges moving from the line 7 towards the points may be provided adjacent the rail 93. When passing into the line 7, the wheel flanges press a bar 115, Fig. 3, against the rail and do not move the switch member 125, but on moving out of the line 7, the flanges pass between the bar 115 and the rail, so that the lever 123 moves across its central position and is held in the open position by a spring 127 until reset by hand.
Patent GB-1178619-A (GB)
Title: Stabilised Polyamides
Inventor: HERMANN KARL HEINZ
IPC: C08K5/50
Filed: 1967-04-28
Abstract: 1,178,619. Stabilized polyamide. FARBENFABRIKEN BAYER A.G. 28 April, 1967 [28 April, 1966; 21 July, 1966], No. 19731/67. Heading C3R. A heat stabilized polyamide comprises (a) 0.001-5% by wt. of a copper compound, e.g. cuprous iodide or cupric acetate, and (b) 0À001- 5% by wt. of a phosphonium halide: in which R 1  is H or an alkyl, cycloalkyl, aryl or aralkyl radical, R 2 , R 3  and R 4  are the same or different and represent, optionally substituted, alkyl, cycloalkyl, aryl or aralkyl radicals; examples of (b) are; tributylmethylphosphonium iodide, triphenylphosphonium hydroiodide, tributylphosphonium hydroiodide, trimethylphenylphosphonium iodide, and tris- (# - cyanoethyl) - benzylphosphonium iodide. The stabilizers may be added to the polyamide after polymerization, e.g. in a melt extruder, or may be added to the monomers before condensation.
Patent GB-636055-A (GB)
Title: Improvements in or relating to copolymers of acrylonitrile with lesser amounts of conjugated dienes
IPC: C08F220/44
Filed: 1947-07-23
Abstract: Tough, leather-like products are obtained by polymerizing acrylonitrile with a lesser amount by weight of a conjugated diolefin of the formula CH2:CX.CX:CXH, where X is a hydrogen atom or methyl group.  Dienes specified are butadiene, isoprene and dimethyl butadiene.  The preferred copolymers are obtained from mixtures containing 65-80 per cent of acrylonitrile. Polymerization may be effected by any known means but preferably in aqueous emulsion in the presence of an emulsifying agent and catalyst at temperatures between 30 DEG  and 70 DEG  C.  Suitable emulsifying agents are alkali metal soaps, hymolal sulphates or sulphonates or aromatic sulphonates and salts of a high molecular weight organic base.  Suitable catalysts are oxygen, hydrogen peroxide, diazoaminobenzene, dipotassium diazomethane disulphonate, benzoyl peroxide, potassium persulphate or mixtures of hydrogen peroxide with sodium oxalate, sodium pyrophosphate, potassium fluoride, urea, glycine or aniline.  The products, which are resistant to mineral oil and other solvents, may be compounded with pigments, fillers, plasticizers and vulcanizing-agents and moulded into articles or rolled into sheets. The Specification as open to inspection under Sect. 91 comprises also copolymers of acrylic nitriles other than acrylonitrile: viz. compounds of the general formula CH2=C.R.CN, where R is hydrogen or an alkyl group.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1263942-A (GB)
Title: A process for producing polyamide dispersions
Inventor: JUDD PETER THOMAS
IPC: C08L77/00
Filed: 1969-04-17
Abstract: 1,263,942. Polyamide coating. W. R. GRACE & CO. 16 April, 1970 [17 April, 1969], No. 19778/69. Heading B2E, [Also in Division C3] Metal may be coated with an aqueous dispersion or suspension of polyhexamethylene adipamide or sebacamide, made by dissolving it in HCOOH, e.g. by boiling therewith, adding H 2 O to the resulting solution to give a mixture M 1 , distilling off most of the HCOOH, and mechanically dispersing the resulting mixture M 2 . The HCOOH may be used as a #90% solution. To mixture M 1  may be added a viscosity-increasing agent, e.g. polyoxymethylene; a water-soluble vinyl polymer; or a watersoluble cellulose derivative. To mixture M 2  may be added a wetting-agent; or at least enough alkali to neutralize residual HCOOH. The dispersion may be dialyzed to remove HCOOH. The particle-size may be 5-100Ám.
Patent GB-195000-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K5/04
Filed: 1922-07-19
Abstract: 195,000. Ross, H. July 19, 1922. Reservoir pens. - In a self-filling reservoir pen of the collapsable-sac type, means are provided for collapsing the rear end of the sac before the front end in order to prevent the formation of an air lock. Two or more parallel-motion links e, f, g, connected together at their inner ends by a bar k, are pivoted on pins in a slot in the barrel, the front link being extended to form an operating- handle h which is adapted to lie flush with the barrel when in closed position. The rear link is formed with an extension m which engages the presser-bar l of the sac before the other links in order to tilt that end slightly. In a modification, the links are pivoted in a casing secured in the slot in the barrel. In place of the extension m, a hump may be formed on the rear end of the connecting-bar k.
Patent GB-1416467-A (GB)
Title: Azaindole fused heterocyclic compounds
IPC: C07D471/22
Filed: 1973-04-26
Abstract: 1416467 Pyrido - pyrrolo - indolizines and -quinolizines AMERICAN HOME PRODUCTS CORP 26 April 1973 [1 May 1972 28 Aug 1972] 19852/73 Heading C2C The invention comprises compounds of the Formulae (I) and (Ia) (in which R is H, C 1-5  alkyl or allyl, R<SP>1</SP> is methyl, ethyl or n-propyl, R<SP>2</SP> is C 1-5  alkyl or allyl, X is two hydrogen atoms or an oxo group and n is 1 or 2) and pharmaceutically acceptable acid addition salts thereof. The compounds (I) in which R is H or C 1-5  alkyl and X is oxo, are prepared by reacting a compound of the Formula (II) in which R<SP>3</SP> is H or C 1-5  alkyl, with a keto-acid of formula or with an enol lactone of the Formula (III) and, if necessary, cyclizing a resulting ketoamide of the Formula (IV) The compounds (I) in which R is H or C 1-5  alkyl and X is two hydrogen atoms, are prepared by (a) reducing a compound of the Formula (V) in which W is O or S, or (b) reacting a compound of the Formula (VI) with a compound of the Formula (VII) and, if necessary, cyclizing a resulting intermediate hydrazone. The compounds (I) in which R is C 1-5  alkyl or allyl are prepared by alkylation or allylation of a corresponding compound in which R is H. The compounds of the Formula (Ia) are prepared by oxidizing a compound (I) in which R is alkyl or allyl and X is two hydrogen atoms, with a peroxy acid. Compounds (I) can exist as optical enantiomorphs and the pure enantiomorphs can be obtained by carrying out a resolution at any convenient stage of the synthesis or by resolving the final products. Thiones of Formula (V) are prepared from the corresponding ketones by reaction with P 2 S 5 . 1,2,3,6,7,8a - Hexahydro - 8a - methylindolizin-8(5H)-one is prepared by reacting 2-methylproline with thionyl chloride and methanol to give methyl 2-methyl-2-pyrrolidinecarboxylate, reacting this with methyl 4-chlorobutyrate to give methyl 2-methoxycarbonyl-2- methyl - 1 - pyrrolidine - butyrate, and reacting this with sodium methoxide to give the desired product. N - methyl - N - 2 - pyridylhydrazine is prepared by reacting 2-bromopyridine with N-methylhydrazine. Pharmaceutical compositions having analgesic activity, for oral or parenteral administration, comprise a compound (I) in which X is two hydrogen atoms, or a compound (Ia), or a pharmaceutically acceptable addition salt thereof, together with a pharmaceutical carrier.