baber/WOPTO huggingface dataset:
Patent GB-600551-A (GB)
Title: Improvements relating to the production of aviation or motor fuels
IPC: C10L1/06
Filed: 1941-02-24
Abstract: <PICT:0600551/III/1> Aviation fuel of high octane number (90-100) is obtained from petroleum naphtha by distilling the naphtha and subjecting the vapours to precision fractionation in a number of successive columns so as to separate isopentane, an isohexane fraction of boiling range 45-64 DEG  C. and an isoheptane fraction of boiling range 72-92 DEG  C. from the fractions containing normal hydrocarbons and aromatic hydrocarbons and blending the above fractions together with tetraethyl lead so that the isopentane and isohexane fractions do not respectively exceed 20 and 25 per cent of the blend.  The isohexane fraction is defined as comprising cyclopentane and dimethyl butanes and methylpentanes boiling in the range specified.  A flow diagram is given in the Specification showing that the n-heptane and heavier hydrocarbon fraction is subjected to solvent extraction to remove aromatics which may be blended with the isohydrocarbon fractions.  The crude oil is first treated to obtain two basic fractions by feeding it from a tank 1 to primary and secondary columns a, b, the column a having the equivalent of 20 theoretical plates operating at a reflux ratio of 2 : 1, a pressure of 40 lbs. per sq. inch, an overhead temperature of 98 DEG  C. and a bottom temperature of 263 DEG  C., while the column b operates with the equivalent of 24 theoretical plates at a reflux ratio of 4 : 1, atmospheric pressure, and overhead and bottom temperatures of 98 DEG  and 263 DEG  C.  Under these conditions hydrocarbons having 1-6 C atoms are taken overhead through line 4 and constitute the primary flash distillate, while some of the C6 and all the C7 hydrocarbons are taken overhead from column b and constitute the "isoheptane base fraction"; this latter fraction is further fractionated in columns h, i, to separate n-hexane and n-heptane fractions through lines 16 and 19, while the isoheptane fraction is recovered through line 18.  The primary flash distillate is subjected to further fractionation to remove hydrocarbons having less than 4 C atoms in column c and to debutanisation in column d, and is then fed to column e where the iso- and n-hexane fractions are separated and subjected to further purification in columns f, g.  Details of the operating conditions for the columns are given in the Specification, also a table showing the hydrocarbon constituents of an Iranian crude and the fractions into which they may be separated according to the invention.  Examples of the blends of the various fractions to constitute, after the addition of 4 ml. tetraethyl lead, 100 octane fuels are (1) 20 per cent isopentane, 10 per cent isohexane fraction, 50 per cent isoheptane fraction, 20 per cent toluene; (2) isopentane 10 per cent, isohexane 20 per cent, isoheptane 70 per cent; (3) isopentane 10 per cent, isohexane 20 per cent, isoheptane 50 per cent, aromatics 20 per cent; (5) 10 per cent isopentane, 20 per cent isohexane, 25 per cent isoheptane, 45 per cent alkylates.
Patent GB-991375-A (GB)
Title: Rivet fastener
Inventor: BASTOW FRANK
IPC: F16B19/10
Filed: 1963-01-21
Abstract: 991,375. Rivets. DOWTY SEALS Ltd. April 20, 1964 [Jan. 21, 1963], No. 2526/63. Addition to 883,478. Heading F2H. A modification of the rivet fastener of the parent Specification consists in providing the flange 3 with a surface facing to slit end 4 which is concavely curved except for one or more continuous recesses 9 or ridges surrounding the body 1. In another modification the surface is straight and inclined towards the slit end portion so as to lie on the surface of a right circular cone whose vertex angle lies between 60 and 160 degrees. One or more continuous ridges or recesses are provided. One or the ridge may be located at the peripheral edge of the flange.
Patent GB-1144430-A (GB)
Title: Electrical insulator assembly with improved temperature characteristics
Inventor: MORDEN CARL M
IPC: H01B17/14
Filed: 1968-01-17
Abstract: 1,144,430. Insulators. DOULTON & CO. Ltd. 17 Jan., 1968, No. 2528/68. Heading H2C. A supporting insulator comprises an assembly of nested conical insulator elements 12 . . . 20, and a conical member 50 nested with the element 12 and having an axially-extending portion 52 to which a metal hardware piece 45 is secured, the member 50 and elements 12 . . . 20 having approximately the same coefficient of thermal expansion, that of the piece 45 being substantially different. The space 62 within member 50 may be substantially filled by making the walls thereof much thicker, or by a separate filler piece, Figs. 4, 3 (not shown). Several assemblies may be secured together to form a stack, Fig. 5 (not shown). The member 50 and elements 12 . . . 20 are preferably made of porcelain.
Patent GB-110467-A (GB)
Title: Improvements in and connected with the Discharge of Coal and like Cargo in Bulk from Barges or Vessels, and the Elevation and Delivery thereof.
Inventor: MUSKER ARTHUR
IPC: E02F3/413
Filed: 1917-02-21
Abstract: 110,467. Musker, A. Feb. 21, 1917. Conveying and elevating apparatus; elevated structures carried by pontoons; vessels modified for unloading; pontoons and lighters, adapting for loading and unloading ships.-Coal &c. is unloaded from barges 1 placed alongside a ship or quay 2 by grab buckets 5 supported by ropes 15 arranged longitudinally of the barges and discharging into pontoons 3 provided with elevators 6 which deliver the material through shoots 7 on to conveyers 8, or into shoots 9, or hoppers 13, communicating with the holds of the ship. Each shoot 7 is connected to a delivery box 7<x> which can be fixed at any height on the elevator casing and contains rollers 6a under and over which the bucket chain 6<x> of the elevator passes. Loss of material between the barge and pontoon is prevented by a platiortr. 25 supported by links 26 and guys. The path of the grab bucket can be varied by altering the inclination of the post 16, Fig. 3, and the bucket may be carried by a transporter boom supported entirely by the elevator casing 6 instead of by rope tackle. If a drag bucket is used instead of a grab bucket, the end of the barge near the pontoon is formed with a sloping floor. In a modification, the elevator may be carried at one end of the barge and the elevator casing may be made with a hinge or telescopic for lowering. In another modification, the buckets discharge into boxes carried by a mast and having spouts communicating with the hold.
Patent GB-1094072-A (GB)
Title: A device for releasably clamping the blade of a circular saw to a drive shaft
IPC: B27B5/32
Filed: 1965-01-20
Abstract: 1,094,072. Sawing. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Jan. 20, 1965 [Jan. 22, 1964], No. 2543/65. Heading B5L. A device for releasably clamping the blade 13 of a circular saw on a drive-shaft 1, more particularly in the hot and cold sawing of rolled stock, comprises a blade support hub 2 keyed to the shaft which is hollow, a clamping disc 12, and an axially movable draw-rod 6 which extends within the drive-shaft and at one end has a spring 22 or the like and an adjusting drive 10, 11 and at the other end has a power-transmitting member in the form of a radially-slotted disc 14 disposed between the clamping disc 12 and a collar 7 on the rod. The spring 22 consists of a number of discs and acts between a shoulder on the drive-shaft 1 and a collar 25 in which the draw rod 6 is rotatable but not axially movable relative thereto. The collar is also connected to the rod 10 of a piston-andcylinder device constituting the adjusting drive for moving the draw rod axially against the spring 22. The opposite end of the rod carries the collar 7 which is urged by the spring against the slotted disc 14 which in turn presses the clamping disc, which is of resilient cup-shape, against the saw blade. When it is desired to remove the blade, the device 11 is actuated to move the rod 6 so that the slotted disc 14 can be disengaged from a shallow recess in the clamping disc and withdrawn from the rod. The pressure in the actuator is then released to permit the collar 7 to pass through an aperture in the clamping disc so that the clamping disc can be moved axially away from the hub 2 to allow the blade to be removed and replaced. The clamping disc may have an annular projection which engages a recess in the hub and on which the saw blade may be centred and retained by an annular spring 20. Relative rotation between the hub and blade is prevented by pins 23 engaging holes in the hub and blade. The hub is held on the shaft 1 by a collar 4. In other embodiments, the device 10, 11 is electrical or mechanical, and the springs 22 may consist of a rubber element or an air or gas cushion. The springs 22 may be omitted and the device 11 only control the movement of the rod.
Patent GB-584886-A (GB)
Title: Improvements relating to anti-skid devices for road vehicle wheels
IPC: B60C27/04
Filed: 1945-02-01
Abstract: 584,886. Vehicle wheels. WHITEHOUSE, A. Feb. 1, 1945, No. 2605. [Class 144 (i)] Slipping-preventing attach ments to wheels.-An emer gency non-slip device arranged at the side of a pneumatic tyre comprises a series of road-gripping devices which are forced outwardly into operative position beyond the tyre tread by means of ar inflatable tube. As shown the auxiliary tread grips g are normally held inoperative in an annular casing a, on a disc d mounted at the side of the wheel, by springs i. The grips are seated on a split or segmental ring h and are forcec outwardly into road-engage ment by the inflation of airtube k. In modifications (no shown) the device may be clamped to the wheel rim; or it may be secured to, or formec integral with, the side of the tyre.
Patent GB-1564591-A (GB)
Title: Sail board
IPC: B63H9/08
Filed: 1978-01-23
Abstract: In a rig on the windsurfing craft, a sail mast (1) is provided which is universally rotatable and pivotable in a mast-foot joint and is intended for accommodating a top mainsail (2) and a bottom supporting sail (3). The main sail and supporting sail (2, 3) are separated from one another by a boom (5) and in the process are held in crossbar-like guides of the boom (5) and are also individually restrained at the rear end of the boom (5) via tensioning elements (6, 7, 8). Stirrups (12, 12a) for controlling the rig are located at the side of the boom. By such a design, exact adaptation of the sail profile to the respective sailing conditions is possible while handling the rig in an optimum manner. <IMAGE>
Patent GB-1220322-A (GB)
Title: Thermoplastic polyester moulding compositions
IPC: C08K5/01
Filed: 1969-01-16
Abstract: 1,220,322. Polyester moulding composition. FARBWERKE HOECHST A.G. 16 Jan., 1969 [16 Jan., 1968], No. 2642/69. Heading C3R. A thermoplastic moulding composition comprises (a) a linear saturated polyester derived from an aromatic dicarboxylic acid and a saturated aliphatic or cycloaliphatic diol, (b) from 0À1 to 5% by weight, based on the polyester, of 1,2,4,5-tetramethylbenzene and (c) from 0À01 to 1% by weight, based on the polyester, of a hydrocarbon wax. The composition may be prepared by mixing components (a) and (b), extruding and granulating the mixture, drying the granules to a moisture content of below 0À01% by weight, mixing the granules with component (c) and homogenizing the mixture in an extruder having a mould temperature of at least 110‹ C. Preferred polyesters are polyethylene terephthalate and polycyclohexane-1,4-dimethylol terephthalate.
Patent GB-593460-A (GB)
Title: Improvements in or relating to sliding caliper gauges
IPC: G01B3/20
Filed: 1944-02-14
Abstract: 593,460. Linear - dimension gauges. ROSS,B. Feb. 14, 1944, No. 2661. [Class 106 (ii)] [Also in Group XXIII] A sliding calliper gauge 2 has one jaw 11 shorter than the other 13, the shorter jaw terminating in a chisel edge or point 12 for marking out purposes. The chisel edge or point may be formed on a separate shank secured by screws 9, 10. Either the moving or the fixed jaw may be the shorter, and an inside or an outside jaw, or both, be so formed.
Patent GB-704236-A (GB)
Title: Fuel injection reciprocating internal combustion engines
IPC: F02B3/00
Filed: 1950-02-02
Abstract: 704,236. Heating charge; cooling cylinders. SANDERS, A. F. April 25, 1951 [Feb. 2, 1950], No. 2703/50. Classes 7(2) and 7(3) In a fuel-injection engine having, in the cylinder head, a part-spherical combustion chamber which is not water-cooled, the exhaust gases are passed through the cylinder head in contact with the walls of the combustion chamber. In Fig. 1 the exhaust pipe 24 leads into the hollow cylinder head and the exhaust gases flow over ribs 27 on the combustion chamber 16 to an outlet pipe 25. The cylinder head may be of aluminium alloy with an asbestos jacket and both the inlet and exhaust valves may be situated in the cylinder block as shown or the exhaust valve may be situated in the cylinder block and the inlet valve may comprise an overhead valve disposed over the piston. In a modification, Fig. 4, the exhaust gases from the exhaust ports 11 flow over the ribbed combustion chambers 16 into an exhaust jacket 35 in the cylinder head, from which the gases escape through a single outlet, and the space 34 around the induction passages 31 is supplied with cooling water through an inlet 37. The fuel injectors inserted at 39 may also be water-cooled Specifications 416,450, 531,075 and 556,666 are referred to.
Patent GB-1347797-A (GB)
Title: Cushion laminate
IPC: B68C1/12
Filed: 1972-01-20
Abstract: 1347797 Laminated absorbent material MINNESOTA MINING & MFG CO 20 Jan 1972 [21 Jan 1971] 2787/72 Heading B5N [Also in Divisions A1 and D1] A resilient, absorbent laminated saddle-pad comprises (i) a resilient and preferably non- absorbent cushioning layer bonded to the fibrous side of (ii) an absorbent sheet comprising a fibrous backing layer surfaced with a selfsupporting thermoplastic film having numerous small holes extending therethrough to ensure porosity, the film and fibrous layer being so bonded that fibres are embedded in the film facing. The cushion layer (i) may be a fabric, nylon web or polyurethane foam, but is preferably a mat of open structure comprising interengaged crinkled filaments which are bonded at mutually-contacting points and having a flattened surface of higher density than the remainder of the mat, whereby adhesion is assisted. Extrusion techniques suitable for the formation of such a mat are disclosed (see Division D1). The filaments may be of polycarbonate, polyolefin, polyester, polyvinyl chloride, polyamide or ionomer resin, and may include plasticizers and other specified additives. The mat may be treated with resins, binders and coating agents, dyed, metallized, mechanically deformed or partially fused and may include metal flakes, fibrous flock and ground cork. The absorbent layer (ii) may comprise a batt or wadding of cotton, rayon or cellulose, which may be needled or felted, bonded by heat and pressure to a polyethylene film, wherein 10-40% of the surface area is covered by the small holes, at the melting point of the plastics. The layers (i) and (ii) are bonded by adhesive, preferably removably using a suitable acrylate, urethane or vulcanized rubber adhesive. The adhesive may include a reinforcing scrim. The absorbent layer (ii) may be disposed of after use; replacement layers may be pre-coated with adhesive and protected by a release liner.
Patent GB-1392250-A (GB)
Title: Apparatus for the automatic or semi-automatic removal of surplus material from the end portions of elongate workpieces of sub- stantially circular cross-section
IPC: B23B5/16
Filed: 1973-01-19
Abstract: 1392250 Deburring pipes, chamfering pipes, beds and frames D W R WALKER 27 Nov 1973 [30 Nov 1972 19 Jan 1973] 55313/72 and 2868/73 Headings B3T B3C and B3B A machine for deburring or chamfering the bore or the outside of the ends of tubes comprises a frame 2, a pair of opposed cutter heads 10 slidable on guide bars 6, means 14 for moving the heads along the bars, means 27, 37, for holding the workpiece substantially coaxial with heads 10, table 37 being mounted on a support 40 resiliently mounted on the frame, a ramp 30 for supplying workpieces 53 to table 37, retractable stops 23 for holding the workpieces, and means 55 for controlling the machine. A pair of cutter heads 10 may be carried by separate units mounted on rails (1) Fig. 1 (not shown), and there may be more than two heads mounted parallel to each other. Each cutter head 10 is movable along bars 6 by a pneumatic cylinder 14 whose ram is clamped by a clamp 16. Each workpiece clamp is mounted on bars 6 and comprises a Vee-block 27 actuated by a pneumatic ram 25, and a work stop 23 actuated by an air cylinder 22. Work-table 37 is formed as a magnetic table with Vee-grooves 51 therein, and the workpiece is lifted from ramp 30 and placed on table 37 by pneumatically-actuated rotary cams 36, which latter also include ejectors for removing non- ferrous finished workpieces which are held on the table by Vee-grooves 51 rather than by the non-effective magnetic table. The internal and external cutters may be of the types Figs. 13, 14 (not shown).
Patent GB-958192-A (GB)
Title: Anthraquinone dyestuffs and process for their manufacture
IPC: C09B1/28
Filed: 1963-01-23
Abstract: The invention comprises dyes of the formula: <FORM:0958192/C3/1> wherein R is a diphenyl residue, X and Y are each hydroxyl or primary amino groups.  The dyes are made by reacting a compound of the formula: <FORM:0958192/C3/2> with a hydroxydiphenyl in the presence of a strongly alkaline reagent at a raised temperature. The diphenyl residue may carry halogen or alkoxy substituents.  The dyes obtained may subsequently be halogenated. The dyes dye and print aromatic polyester fibres from aqueous dispersion in orange to red shades.
Patent GB-247188-A (GB)
Title: A process for the production of 2-hydrazino-5-nitropyridine
IPC: C07D213/77
Filed: 1926-02-01
Abstract: 247,188. Rõth, C. Feb. 5, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. 2-Hydrazino-5-nilropyridine is prepared by treating 2-halogen.5-nitropyridine with hydrazine hydrate. The reaction may be carried out in the presence of a solvent, such as water or alcohol, and with cooling. Examples are given, in which 2-chloro-5-nitropyridine is the starting material.
Patent GB-682838-A (GB)
Title: Improvements in the manufacture of permanent magnets made of oxides
IPC: H01F1/11
Filed: 1951-02-06
Abstract: 682,838. Magnetic compositions. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 6, 1951 [Feb. 6, 1950], No. 2950/51. Class 38 (ii). Permanent magnetic material is made by grinding together Fe 2 O 3  and C 02 O 3  to particles less in diameter than. one micron. the number of iron to cobalt atoms being between the ratios 1.8 and 3, compressing, heating the mixture to between 700‹ and 1300 C., in nitrogen which may contain traces of oxygen, and cooling slowly, below 500‹ C. in a magnetic field. The use of a binder removed by special treatment before heating, is mentioned.
Patent GB-426125-A (GB)
Title: Improvements in internal combustion engines having auxiliary compression chambers
IPC: F02B19/14
Filed: 1933-06-24
Abstract: 426,125. Combustion chambers. HERCULES MOTORS CORPORATION, 201, 11th Street, South East, Canton, Ohio, U.S.A. June 24, 1933, No. 2983/35. Convention date, Feb. 3, 1933. Divided out of 425,892. '[Classes 7 (ii) and 7 (iii)] A rectangular or multi-sided passageway P having its top wall continuous with the lower face 29 of the cylinder head leads air or mixture tangentially from the cylinder 14 into a lateral combustion chamber Cc of substantially spherical form in which a fuel nozzle 82 may be arranged. The combustion chamber is formed in removable lines 75, 76, and the passageway P by a flat portion 79 of the liner 76 and notches 80, 81 in the cylinder 14 and cylinder block 15. Specification 425,892 is referred to.
Patent GB-702334-A (GB)
Title: Improvements relating to electric overhead lines
Inventor: LOEBL HERBERT
IPC: H02G7/02
Filed: 1951-02-07
Abstract: 702,334. Erecting cables. REYROLLE & CO., Ltd., A. Feb. 7, 1952 [Feb. 7, 1951], No. 3008/51. Class 36 [Also in Group XXXVIII] An electric overhead line is combined with a gauge for indicating the mechanical tension in the line. As shown, a tension bar A having resistor-type strain gauges B secured thereto is connected by pins C to shackles D by which the bar is series connected between the end of a line conductor and the adjacent insulator, at an intermediate point in a string of insulators, or between the insulators and the supporting tower. The pins C are also coiinected by links E which are slotted at their ends E<SP>2</SP> to permit limited longitudinal play. Initially, the tension bar A takes the line tension but if the strain thereof reaches a predetermined value the links E take any addition line tension. Bolts F engaging the associated pin C through the slots in the links E enable the tension-relieving links to take over at varying tensions and may be used to take all the strain once the line tension has been measured. In use, the line tension is adjusted by a turn-buckle until the desired tension, measured, e.g. by a Wheatstone bridge, is reached. Other forms of tension element may be used, e.g. a ring on which several strain gauge resistors may be secured so as to act differentially but cancel out temperature effects in the measuring circuit; or a device in which an airgap in a magnetic field varies with the strain may be used. The tension sensing element may alternatively include a helical spring arranged to be extended by increasing the line tension until an abutment moved with one end of the spring floats between a pair of stops as indicated by signals lamps in a circuit controlled by the abutment and shops.
Patent GB-432567-A (GB)
Title: An improved retractive electric switching device
IPC: H01H3/14
Filed: 1934-01-30
Abstract: 432,567. Retractive switches. OSBORN, A. E., 27, Dallow Road, Luton, Bedfordshire. Jan. 30, 1934, No. 3052. [Class 38 (v)] A retractive switching device suitable for placing under a mat to give an alarm on being trodden on, comprises two conducting strips 1, 2 placed on opposite sides of a rubber sheet 3 through which the strips are threaded at intervals such as at 1<a>. At such points the strips are exposed to each other but held apart by the rubber sheet so that on pressure being applied contact is made.
Patent GB-1091394-A (GB)
Title: Novel process for the preparation of unsaturated cyclic ketones
IPC: C07C45/67
Filed: 1966-01-24
Abstract: Ketones of the general formula <FORM:1091394/C2/1> in which R is hydrogen atom or a C1-C8 aliphatic hydrocarbon chain are prepared by reacting a b -oxo-d -valerolactone of general formula (II) CH3.CO.CH(OR1)2 in which R1 is an alkyl group, with an acid in aqueous medium.  Suitable acids are, for example, hydrochloric, hydrobromic and sulphuric acids.  The b -oxo-d -valerolactones used as starting materials may be prepared by reacting a blocked pyruvic aldehyde of general formula CH3COCH(OR1)2 with an acetyl acetic ester of formula RCH2COCH2COOR11, in which R11 is an alkyl group.  Examples are given of the preparation of (a) 4-hydroxy-3-methyl-2-allyl-2-cyclopen-1-one and (b) 4-hydroxy-3-methyl-2-cyclopenten-1-one. The latter compound is converted by treatment with 3,5-dinitrobenzoyl chloride to give 4-(31,51-dinitro)-benzyloxy - 3 - methyl - 2 - cyclopentene - 1 - one and both compound (b) and the dinitro-benzoyloxy derivative are claimed per se.