baber/WOPTO huggingface dataset:
Patent GB-1253712-A (GB)
Title: Improvements in blade mountings for helicopters and the like
Inventor: MACKENZIE NEIL JOHN
IPC: B64C27/48
Filed: 1969-03-04
Abstract: 1,253,712. Helicopter rotors; variable pitch propellers. TEXTRON Inc. 4 March, 1969, No. 11506/69. Headings B7G, B7V and B7W. Apparatus for transferring the bending moments generated in a rotor blade to its spindle on a rotor hub comprises root fitting means for attaching the rotor to the hub spindle, one or more fittings sleeved on to said spindle for supporting said root fitting, a peripheral groove in the spindle, a ring positioned in said groove, and clamping means for axially clamping the whole assembly. A rotor root fitting 18 is attached to a spindle 26 of rotor hub 13 by the following assembly consisting of a radius ring 42, a packing seal 43, a root fitting retention nut 44, a shim 48, two bearings 49, 51, a split ring 52 held in a peripheral groove 28 of spindle 26 by a ring 53 of tapering inner cross-section, and a nut 54 on threaded end of spindle 26, to clamp the whole assembly, and a packing gland 47 which is screwed into fitting 18 to secure the assembly within the fitting.
Patent GB-973012-A (GB)
Title: Method of marking metal articles such as casks and like containers
Inventor: BAILEY VICTOR SAMUEL
IPC: B41M1/28
Filed: 1962-03-27
Abstract: 973,012. Stencilling; etching; ornamenting. GRUNDY (TEDDINGTON) Ltd. March 6, 1963 [March 27, 1962], No. 11657/62. Headings B6C, B6G and B6J: Aluminium alloy or stainless steel articles such as beer casks are marked with the name of the brewer or a serial number &c. by etching or roughening the area of the surface to be marked and then spraying metal thereon by an oxyacetylene spraying gun through a polished or metal-adhesion resisting stencil. The surface to be marked may be first exposed through a rubber mask and shot-blasted with aluminium oxide grit. Aluminium alloy wire containing silicon is fed to a metal spraying gun and the metal is sprayed through a polished metal, e.g. brass, stencil. The marked article is then etched in a phosphoric acid solution which etches the surface except where it is sprayed. The lettering &c. turns brown or black depending upon the time in solution.
Patent GB-218254-A (GB)
Title: Improvements in methods of making depressions in metal plates
IPC: B21D22/04
Filed: 1924-05-12
Abstract: 218,254. Krupp Akt.-Ges., F. June 25, 1923, [Convention date]. Steam generators.-In the manufacture of stepped cylinders Q, Fig. 6, of water tube boilers, depressions are made in flat plates by pressing one or more corrugations in the plate and then pressing the ends and, if desired, intermediate parts of each corrugation back into the plane of the plate thus avoiding considerable weakening due to extension of the material. The first depression a<4>, Fig. 3, is not so deep as that finally required but is of the same width W. In the second operation the ends of the depression are flattened out again and the final deep depression a' is formed. Fig. 11 shows dies B, P for forming a series of corrugations, hand-controlled gags N, M, being arranged behind spring pressed die parts E, D, and so operated that, at the first pressure on the plate Q, only the die E acts, at the second the dies D, and at the third the dies C, thereby avoiding stretching of the material. The plate Q, Fig. 9, is then bent into semicylindrical form and stamped between dies which flatten the ends and intermediate parts n of the corrugations q<1>, q<2>, q<3> and give the final shape to the depressions q<4>, q<5>, q<6>, Fig. 6.
Patent GB-908184-A (GB)
Title: Polyvinyl resin compositions and epoxy-ester plasticisers therefor
IPC: C08L27/04
Filed: 1959-04-07
Abstract: Resin compositions comprise a halogen-containing synthetic resin, e.g. polyvinyl chloride, a vinyl chloride-vinyl acetate copolymer or a vinylidene chloride copolymer, plasticized with a mixed ester derived from a polyhydric alcohol containing not more than 8 carbon atoms in the molecule and one or more saturated monocarboxylic acids having a chain length or average chain length of 4 to 8 carbon atoms and one or more epoxidized monocarboxylic acid residues having a chain length or an average chain length of from 12 to 18 carbon atoms.  (For preparation of the plasticizer (see Group IV(b)).  5 to 100 parts of plasticizer per 100 parts of resin are satisfactory. Suitable alcohols are pentaerythritol, erythritol, trimethylol ethane, trimethylol propane, glycerol, anhydroenneabeptitol, 1,2-propylene glycol and 1,2,6-hexanetriol.  Acids mentioned are epoxystearic acid, capric, caprylic and butyric acids.  Other plasticizers may be added including esters of the same polyhydric alcohols, barium-cadmium stabilizer and stearic acid.ALSO:The invention comprises a mixed aliphatic acid ester of pentaerythritol containing one or more saturated monocarboxylic acid residues having a chain length or average chain length of 4 to 8 carbon atoms and one or more epoxidised monocarboxylic acid residues having a chain length or an average chain length of from 12 to 18 carbon atoms.  Preferred are an ester of pentaerythritol with one epoxystearic acid residue and acid residues derived from capric, caprylic and butyric acids in proportions such that said residues have an average of 6 carbon atoms per residue, and pentaerythritol bisepoxystearate dibutyrate.  The mixed esters of pentaerythritol or other polyhydric alcohols containing not more than 8 carbon atoms per molecule may be made by esterifying the alcohol with suitable saturated and unsaturated aliphatic monocarboxylic acids, in admixtures or successively in either order, and then subjecting to epoxidation with peracetic, perbenzoic or other peracid.  A preterred mixture of mixed esters is made by reacting a polyhydric alcohol containing not more than 8 carbon atoms per molecule successively or simultaneously with an epoxidisable unsaturated monocarboxylic acid having a carbon chain of 12 to 18 carbon atoms and a saturated monocarboxylic acid containing 8 to 10 carbon atoms in quantities insufficient to satisfy all the hydroxyl groups present, thereafter reacting the product with a sufficient quantity of another saturated monocarboxylic acid of shorter chain length, or its anhydride, to produce a product in which the average chain length of the saturated acid residues is about 6 carbon atoms and, finally epoxidising said product.  Other polyhydric alcohols mentioned are erythritol, trimethylol ethane, trimethylol propane, glycerol, anhydroenneaheptitol, 1,2-propylene glycol and 1,2,6-hexanetriol.
Patent GB-1399778-A (GB)
Title: Valves
IPC: F02M26/55
Filed: 1973-03-12
Abstract: 1399778 Exhaust recirculation in I C engines ROBERT BOSCH GmbH 12 March 1973 [13 March 1972] 11718/73 Heading F1B [Also in Division F2] A valve to control exhaust gas recirculation in an I.C. engine comprises a closure member 16 actuable by a cam 35 via flexible intermediate member 36 and stem 21 to move between a fully closed position (on seat 15) and a fully open position to which the closure member 16 is biased by spring 29 and in which it abuts against seat 25 to prevent passage of exhaust gas to the inside of a ribbed tube 18 coaxial with stem 21, a diaphragm being connected to the valve stem to seal the cam 35 from inlet and outlet ports 12, 13. The tube 18 may be of low thermal conductivity metal, resistant to corrosion. A guide port 27 slides within gas inlet 12 to ensure axial movement of closure member 16. The cam 35 is rotated in dependence on throttle openings via linkage (8) Fig.1 (not shown) and lever 38.
Patent GB-117635-A (GB)
Title: Improved Apparatus for Producing Tubulous Masses of Plastic Material.
IPC: B29C48/10
Filed: 1918-07-17
Abstract: 117,635. American Linseed Co., (Assignees of Schaub, J.). July 17,1917, [Convention date]. Drawings to Specification. Solidified and gelatinized spirits.-Relates to the production of tubulous masses from plastic material, particularly in which the tubules are filled with liquid, and is described in connexion with the production of artificial fuel described in Specification 127,585, i.e. comprising a colloid plastic material consisting of cellulose penter nitrate dissolved in methyl alcohol having tubules filled with ethyl alcohol.
Patent GB-197181-A (GB)
Title: Improvements in or relating to perambulators
IPC: B62M7/14
Filed: 1922-04-27
Abstract: 197,181. Dunkley, W. H. April 27, 1922. Motor-cycles, tricars, and the like; cycle tractor and like propelling attachments.-In a perambulator combined with a wheeled motor propelling attachment, a platform or seat for the attendant and a power unit are mounted independently of one another and are attached to the perambulator underframe. In the construction shown in Fig. 1, the platform 6 is supported at one end by a wheel 12 and is attached at the other end by a flexible joint to the rear axle 1 of the perambulator. A power unit consisting of a small internal combustion engine 4, a wheel 5, and a fuel tank 14 is attached to the front axle of the perambulator. In a modification, the wheel 12 is dispensed with and the platform is supported entirely from the perambulator underframe. The front wheels are in this form mounted on swivelling axles and steered by an inclined column from the rear platform. In further modifications, the power unit with its supporting wheel is arranged behind the perambulator, or the power unit is supported on the perambulator centrally between the wheels or at one side and down one of the perambulator wheels. The platform or seat may be arranged at the side of and entirely supported by the perambulator. In a further modification, the perambulator body, the platform and a motor driving a wheel are carried by a frame supported upon two wheels at one side and a single wheel at the other side. In the construction shown in Fig. 9, the perambulator body 54<a>, the attendant's seat 63 and the power unit 57 are mounted upon a frame 56 carried by two rear wheels and a single front wheel 62 driven from the motor. The motor drives through a chain and a pulley 58 which engages the tyre of the wheel 62 when the foot lever 59 is depressed, the gear being disengaged by a spring 61. In a modification of this construction adapted to run in the opposite direction, the motor drives the single wheel by a chain.
Patent GB-1462087-A (GB)
Title: Contact arrangements for electrical switches
IPC: H01H9/46
Filed: 1974-03-18
Abstract: 1462087 Switch contact arrangement SIEMENS AG 18 March 1974 [26 March 1973] 11981/74 Heading H1N An electric switch contact 11 is supported on a flat ferromagnetic member 9 (or 10) which carries the current to the contact and which has a conductor (13 or 14) welded to it at a point 15 (or 16) to form a current loop therewith, so that when the contacts of the switch open the arc will be electromagnetically deflected from the contact on to the ferromagnetic member in a direction away from the weld, i.e. towards the ceramic arc-quenching elements 2. Preferably the surface of the ferromagnetic member has a conductive layer, e.g. electroplated copper, on the contact-carrying surface. In the embodiment, dome-shaped moving contacts are carried on a spring-biased bridge 8, which may also be ferromagnetic. A bi-metallic trip 5 and short-circuit trip 6 are provided in series with conductors 13, 14 and terminals 17, 18. The ferromagnetic members 9 and 10 may be provided with deformable retaining lugs 19 and each fixed contact assembly may be fabricated as a unit component (Figs. 2 and 3, not shown).
Patent GB-1308857-A (GB)
Title: Thermoplastic polyamide urethane urea resin and process for its production
IPC: C08G18/40
Filed: 1971-04-28
Abstract: 1308857 Heat bonded fabrics TEIJIN Ltd 28 April 1971 [28 April 1970] 12020/71 Heading B5N [Also in Division C3] Heat-bonded fabrics may be prepared by interposing and heat bonding between fabrics woven from a blend of polyethylene terephthalate fibres and cotton, polyethylene, terephthalate knits or nylon 6 fabrics a film derived from a thermoplastic polyamide urethane urea resins prepared by reacting (A) a linear polyhydroxyl polymer which has terminal OH groups, is free from ethylene terephthalate chains, has an average M.W. of 400 to 4000 and is liquid at 80‹ C. or below, (B) a linear polyester which has terminal OH groups, has a M.W. of 400 to 3000, a m.p. of 50 to 220‹ C. and in which 35 to 95% by weight of the molecular chain consists of ethylene terephthalate units, (C) a linear polyamide which has an average M.W. of 400 to 4000, a m.p. of 100‹ to 200‹ C. and in which at least 80% of the both terminal groups are amino groups, and (D) are organic di-isocyanate in such amounts than (i) the mole ratio of (D) to (A) + (B) + (C) is less than 1, (ii) the weight ratio of (B) and (C) to (A) is 0À5 to 2, (iii) the weight ratio of (C) to (B)+(C) is 0-06 to 0À85 and (iv) the weight per cent of (C) to (A) + (B) + (C) + (D) is 3 to 55. (See Division C3).
Patent GB-485130-A (GB)
Title: Improvements relating to rolling mills
IPC: B21B35/06
Filed: 1937-04-27
Abstract: 485,130. Rolling. EVANS, W. E. (Demag Akt.-Ges.) April 27, 1937, No. 12023. [Class 83 (iv)] In rolling mills with small diameter rolls 2, 3 supported by other rolls 1, one or both working rolls 2, 3 is or are driven at both ends, and both end drives are controlled to receive simultaneously uniform turning moments. In the construction shown, electromotors 4 drive the rolls 2 through spindles 5. One roll may be driven through flexible shafts at both ends when both rolls are driven to accommodate the two motors at each side, or the motors may be staggered outwardly from the rolls if the diameter of the working rolls permits of one roll extending past the motors driving the other roll. The electrical connections for the motors are described.
Patent GB-1013531-A (GB)
Title: Improvements relating to radar equipment
Inventor: EVANS RONALD HERBERT JAMES PUG
IPC: G01S13/46
Filed: 1961-04-05
Abstract: 1,013,531. Height finding radar. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 13, 1962 [April 5, 1961], No. 12193/61. Heading H4D. In a pulse radar system of the type wherein the antenna nods in elevation and slowly turns in azimuth, and the echo signals are gated before display, such that the displayed targets are those occurring within a given height range, the height of the target is corrected for the earth's curvature by gating the echo signals by means of comparing the function Ax<SP>2</SP>+Bx, with upper and lower limits, where A is a constant, B is a function of the antenna elevation angle and x is the time from the start of the radar sweep, and opening and closing the gate when the function is equal to the lower and upper limits respectively. A first timing pulse 1 is generated at the beginning of each radar sweep and sets a bi-stable circuit into a first state, which in turn causes sweep generators 1 and 2 to start generating linear sweeps. A second timing pulse 2 is generated at the end of each radar sweep and returns the bi-stable circuit to its original state and so stops the generation of the sweep by generators 1 and 2. Generator 2 produces a sweep signal Bx, and is controlled in accordance with the antenna elevation angle. The output of generator 1 is integrated to give the signal Ax<SP>2</SP>, which is then combined with the signal Bx and the resultant signal is passed to lower and upper comparators, where the comparison with the lower and upper limits takes place. The comparators control a bi-stable control circuit, which in turn controls a gate passing the video signal from the radar receiver to the display. A plurality of PPI displays may be then provided, each showing targets in different height strata. The invention may provide radar displays showing all targets except those in a given height range.
Patent GB-540161-A (GB)
Title: Improvements in and relating to weft inserting mechanism for narrow ware weaving looms
IPC: D03D35/00
Filed: 1940-07-31
Abstract: 540,161. Shuttleless looms. CONTINENTAL ELASTIC CORPORATION. July 31, 1940, No. 12405. Convention date, July 31, 1939. [Class 142 (ii)] The selvedge shuttle 5 of a small ware loom is raised and lowered, to allow the weft thread 28 to pass below and above it, by two electromagnets 2, 3 which are excited alternately. Upper and lower guide rods 17, 18 and 19, 20, operated by cams 9, 10 which enter holes in the shuttle 5 to retain it in position, are moved to leave a clear passage for the weft thread 28. The magnet 3 can be moved round its support 6 to facilitate removal &c. of the shuttle.
Patent GB-540811-A (GB)
Title: Improvements relating to direct current electricity meters
IPC: G01R11/30
Filed: 1940-08-01
Abstract: 540,811. Supply meters. LANDIS & GYR SOC. ANON. Aug. 1, 1940, No. 12453. Convention date, Aug. 5, 1939. [Class 37] A direct current meter is provided with a spark-extinguishing circuit, comprising a condenser and a resistance or an inductance, for preventing sparking at the commutator. In the construction shown in Fig. 1 a spark extinguishing circuit 9, 10, 11, consisting of a condenser 7 and resistance or inductance 8, is connected in parallel with each of the armature windings 4, 5, 6 connected to the commutator segments 1, 2, 3. The brushes 15, 16 may also be bridged by a spark-extinguishing circuit 17. Alternatively the circuits 9, 10, 11 may be connected together at one end and at the other ends connected to the junction points of the armature windings 4, 5, 6. Instead of being arranged in the armature itself so as to rotate with it, the condensers 7 and resistances 8 may be stationary and connected to the armature windings through sliprings. In a modification, Fig. 4, each sparkextinguishing circuit 9, 10 is connected between one of the brushes 15, 16 and a spring or brush 27, 28.
Patent GB-796582-A (GB)
Title: Improvements in and relating to electric circuit-breakers of the gas-blast type
Inventor: BOLTON ERIC
IPC: H01H33/55
Filed: 1954-03-02
Abstract: 796,582. Air-blast switches. ENGLISH ELECTRIC CO., Ltd. Feb. 25, 1955 [March 2, 1954], No. 12459/55. Divided out of 796,581. Drawings to Specification. Class 38 (5). The circuit-breaker is identical with that described in Specification 796,581 (and illustrated in Fig. 2 of the drawings accompanying the Provisional Specification) from which the present Specification is divided, but the claims differ.
Patent GB-115562-A (GB)
Title: Improvements in Spring Starters for Internal-combustion Engines.
Inventor: LINDGREN PHILIP CHARLES
IPC: F02N5/02
Filed: 1917-08-30
Abstract: 115,562. Lindgren, P. C. Aug. 30, 1917. Turning-gear.-In spring turning-gear for a motor-vehicle engine, the starter shaft is journaled in a easing rigidly mounted on the vehicle frame, and a coupling shaft is loosely connected at its ends with the engine shaft and the starter shaft, both for support and rotation, and is free from intermediate support. In the form shown, the starter casing 1 is mounted by means of flanges 1<a> on the end bar A<1> of the vehicle frame. The coupling shaft 3 passes freely through the end part c of the engine crank-case, and has a squared end 3<a>, fitting loosely in a corresponding socket in the end of the starter shaft 2. A cone-pointed pin 2<c> fits in sockets in the ends of the two shafts 2, 3. The rear end of the coupling shaft 3 is squared to fit loosely in a socket member pinned to the engine shaft, and is centred by means of a spring-pressed conepointed pin. The power spring 15 is secured at its ends to the casing 1 and to a drum 21 keyed on a tubular shaft 7 enclosing the starter shaft 2. The spring is wound from the engine-driven shaft 3 through a clutch member 11 mounted on the shaft 2 and engaging clutch teeth on a member 25 carrying the three planet pinions 29a of a speed-reducing train. The train comprises a final-driven gear 27 keyed on the shaft 7, and a master gear 29 jcurnaled on ball bearings on the shaft 7 and having one tooth less than the gear 27. The gear 29 is held during winding by a toothed pawl 30, Fig. 3, pivoted on the eccentric wrist 31<a> of a rock-shaft 31 and held in engagement with the gear by a spring 30<c>. When the power spring is fully wound, the clutch member 11 is disengaged by the longitudinal movement of a nut 17, acting on the shaft through a spring 18, a sleeve 10, and ball bearings 9. The sleeve 10 is held by a ball detent 19<a> until the spring 18 is, sufficiently compressed to move the sleeve 10 and the shaft 2 sharply. For starting, the pawl 30 is withdrawn by means of a cable 31<c>, and the spring-actuated shaft 7 drives the shafts 2, 3 through dogs 12 carried by the clutch member 11. The dogs 12 have inclined ends held by springs in engagexnen, with ratchet teeth on the shaft 7, and are thrown out by centrifugal action when the engine overruns the shaft 7. The control 31f is then released. allowing the pawl 30 to re-engage the gear 29, and the engine re-winds the power spring. The shaft 2 has a cross-pin, guarded by a tubular mem. ber 1<p>, for engagement bv a starting-handle. Lubricating grease is retained by packing 41 held by the cap 1<m>, and by n felt packing-ring 42.
Patent GB-986077-A (GB)
Title: Flexible absorbent sheet
IPC: A61L15/42
Filed: 1963-03-29
Abstract: 986,077. Surgical dressings. JOHNSON & JOHNSON. March 29, 1963 [March 29, 1962], No. 12561/63. Addition to 983,576. Heading A5R. [Also in Division B5] The laminate of the parent Specification is modified by the addition of a flexible sheet 16 interposed between the fibrous layer 12 and the cellular sponge layer 14. The flexible layer may be a sheet of plastics material or a woven, knitted or elastic fabric such as a woven, kinked, stretchable cotton fabric and may extend beyond the edges of cellular layer to form a bandage. U.S.A. Specification 2,956,310 also is referred to.
Patent GB-1105788-A (GB)
Title: Improvements relating to ferrimagnetic materials
IPC: C04B35/26
Filed: 1966-03-22
Abstract: 1,105,788. Magnetic compositions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 March, 1966 [25 March, 1965], No. 12562/66. Heading H1H. A ferrimagnetic material has the composition where M<SP>II</SP> is one or more of Mn, Fe, Ni, Cu, Zn, Mg, or the complex (Li<SP>I</SP>+Fe<SP>III</SP>)/2; and where 1#a#0, 0À6#b#0, 0À3#c#0, 2#d#0À5, and 0À5#e#0À005. It may be prepared from the component oxides, or oxide-yielding compounds, e.g. carbonate, or compounds containing at least two of the oxides. The mixture may be ground, e.g. in alcohol, dried, presintered and ground one or more times, shaped with or without a binder, and sintered. Sintering may be effected at 1000-1450 C. in air or O 2 , in the presence of silicates or fluorides. After final grinding the material may be orientated in a rotating magnetic field and compressed in the orientated state. Alternatively, the initial mixture may be melted, and single crystals grown. The product is similar in crystal structure and properties to that of Specification 833,053.
Patent GB-698362-A (GB)
Title: Improvements in manufacture of acetone-diphenylamine condensation products
IPC: C08K11/00
Filed: 1951-05-29
Abstract: An antioxidant for natural or synthetic rubber is prepared by (1) condensing acetone and diphenylamine in a molar ratio greater than 1 : 1 at above 200 DEG  C., under super-atmospheric pressure and in presence of a catalyst which is bromine, iodine, hydrobromic acid, hydriodic acid or a bromide or iodide of tin, aluminium, cobalt, copper, bismuth, antimony, iron, manganese or zinc; (2) removing water and unreacted acetone to give a condensate having a viscosity greater than 100 poises at 30 per cent and an uncombined diphenylamine content of less than 25 per cent; and (3) pyrolysing this condensate at 250-400 DEG  C. in presence of a catalyst of the type defined above to produce a liquid having a viscosity below 100 poises at 30 DEG  C. and an uncombined diphenylamine content of less than 25 per cent.  The pyrolysis may be performed at sub-, normal-, or super-atmospheric pressure. U.S.A. Specifications 1,807,355, 1,915,108, 1,975,167, 2,002,642, 2,202,934 and 2,233,590 are referred to.