baber/WOPTO huggingface dataset:
Patent GB-518618-A (GB)
Title: Improvements in or relating to containers for fluids under pressure
IPC: F17C1/02
Filed: 1938-08-25
Abstract: 518,618. Gas storage cylinders. BRITISH OXYGEN CO., Ltd., and STEPHENSON, A. Aug. 25, 1938, No. 24999. [Class 8 (ii)] A container for storing fluids, e.g. compressed or liquefied gases, under pressure is formed with a cylindrical body strengthened to a progressively decreasing extent towards the ends. Fig. 3 shows the body with a middle portion of uniform thickness and portions 3 conically tapering towards the ends. These portions may alternatively be stepped or curved either on the outside or inside of the vessel. Fig. 8 shows a vessel with a globular corrugation 2b in the middle tapering portions 3b, 4b and one globular end 6b. Strengthening may also be effected by a single tapered sheath or a stepped sheath, or by longitudinally separated sheathing rings of progressively diminishing breadth or thickness. The sheaths may be formed of wire bundles. Strengthening may also be effected by corrugating the cylinder, formed of uniform thickness, to varying depths and pitches either transversely or obliquely. The cylinder may be in two or three longitudinal parts, bolted together. The ends may be at least in part of a thickness less than that of the body portion as described in Specification 518,661.
Patent GB-991144-A (GB)
Title: Improved process for the preparation of beta-hydroxyalkyl mono-esters of acrylic and methacrylic acid
IPC: C07C69/54
Filed: 1962-06-29
Abstract: Beta-hydroxyalkyl mono-esters of acrylic and methacrylic acids are prepared by reacting the corresponding acid with ethylene or propylene oxide in the presence of a catalyst of the formula <FORM:0991144/C2/1> wherein X is a chloride, bromide, fluoride or iodide ion and R1, R2, R3 and R4 are each hydrogen atoms or alkyl, aryl, alkylaryl or arylalkyl hydrocarbon radicals.  The process is preferably conducted in the presence of an inert atmosphere and the residual unreacted ethylene or propylene oxide is preferably removed from the reaction product.  When acrylic acid is reacted with ethylene oxide in an inert atmosphere it is desirable to add a polymerization inhibitor which is devoid of active hydrogen atoms or which, while containing active hydrogen atoms, is not deactivated in an inert atmosphere by reaction with ethylene oxide, several such inhibitors being specified. Several suitable catalysts are specified. Examples are given.
Patent GB-1462609-A (GB)
Title: Cracking process for producing ethylene
IPC: C10G65/12
Filed: 1975-06-11
Abstract: 1462609 Two stage cracking of hydrocarbons CONTINENTAL OIL CO 11 June 1975 25040/75 Heading C5E A process for producing ethylene comprises (a) hydropyrolysing a hydrocarbon feed in the presence of H 2 , the mole ratio of H 2 : feed being at least 1:1, at 600-900‹ C, a pressure of at least 5 atmos. gauge and a residence time of 0À1-60 seconds, to produce a hydropyrolysis effluent; (b) introducing the hydropyrolysis effluent without prior condensation thereof to a second-stage cracking zone where it is cracked at 750-900‹ C, a pressure not more than 2 atmospheres gauge and a residence time of 0À01-10 seconds, to produce a cracking zone effluent; (c) separating the cracking zone effluent into a H 2  stream, a CH 4  stream, a C 2 H 4  stream, a C 2 H 6  stream and a higher hydrocarbon stream; (d) recycling the H 2  stream to (a) and recycling the ethane steam to (b); and (e) recovering the methane stream and the ethylene stream. Water may also be introduced to the first stage hydropyrolysis. The higher hydrocarbon stream recovered from (c) may be hydrogenated and recycled to the hydropyrolysis, optionally after separation of an aromatics stream.
Patent GB-481537-A (GB)
Title: Improvements in or relating to fluid-actuated rock drills or like tools
IPC: B25D17/26
Filed: 1936-09-14
Abstract: 481,537. Percussive drills. HOLMAN, A. T., HOLMAN, P. M., COCK, B., and HOLMAN BROS., Ltd. Sept. 14, 1936, No. 25078. [Class 124] Live air, conveying small quantities of oil passes from the cylinder 2 through ports 12 into reservoirs 11. These ports are uncovered by the piston just prior to opening the exhaust ports' 13, on both strokes. Oil collects in these reservoirs and is conveyed by passages 14. 15 to the front chuck. Grooves 17 serve to retain the oil. Specification 328,685, [Class 12 (ii)], is referred to.
Patent GB-1482726-A (GB)
Title: Burster
IPC: B26D7/06
Filed: 1975-06-11
Abstract: 1482726 Severing by tearing UARCO Inc 11 June 1975 [16 Sept 1974] 25091/75 Heading B4B [Also in Division B8] A burster comprises rollers 180, 182 driven at different speeds to pull a weakened web into sheets which are conveyed by conveyer 34 to a height adjustable tray 18. The web passes through a trimmer assembly 24 and over an adjustable drive roller 26 which also acts as an impression roller for a removable printing assembly 28. Guides 170 take the web to bursting rollers 180, 182 the rollers 180 being adjustable with frame 184 to accommodate different sheet sizes. Adjustable rollers 200 shingle the sheets on conveyer belts 202 and can move with the carriage 208 synchronously with carriage 184. An optical jam detector is provided. A bale 326 controls the working speed by monitoring the ingoing web. All functions are controlled by given electrical circuitry. A glass cover 22 is provided which engages switch 324, when in position, for the machine to start.
Patent GB-782362-A (GB)
Title: Improvements in or relating to training and stabilising devices for attachment to bicycles
Inventor: JOHNSON SYDNEY
IPC: B62H1/12
Filed: 1954-08-30
Abstract: 782,362. Cycle supports. ELSWICKHOPPER CYCLE & MOTOR CO., Ltd. March 10, 1955 [Aug. 30. 1954], No. 25163/54. Class 136(1) A training and stabilizing device is anchored to the chain stays of a bicycle close to the bottom bracket 31 and comprises auxiliary wheels 30 mounted in arms 19 which are pivotally adjustable relative to the frame so that the wheels 30 can be swung in an up-and-down direction, and a clamping bolt 26 for securing the arms 19 in the adjusted position. A U-shaped member 10 is clamped to the chain stays 13. The ends of the limbs 12 of the member 10 are formed with quadrant shaped portions 16 and are provided with an arcuate set of holes 17. The arms 19 pivot about a bolt 22 which passes through the limbs 12. Each lever arm 19 is provided with a hole 25 which may be brought into register with any of the holes in the quadrant 16. The clamping bolt 26 is arranged to extend through the registering holes.
Patent GB-851392-A (GB)
Title: Improvements in and relating to cable connectors
IPC: H01R24/52
Filed: 1958-08-06
Abstract: 851,392. Two-part couplings. BURNDY CORPORATION. Aug. 6, 1958 [Sept. 16, 1957], No. 25200/58. Class 38(1) The inner and outer conductors of a coaxial cable are connected to socket members 4, 5, moulded in a panel 2, by a tapered pin 8 crimped to the inner conductor and forced into socket 4 and a conducting sleeve 19 which engages the expanded end 17 of a malleable sleeve 16 crimped to the outer conductor 14. A hard metal supporting ferrule 15 is inserted between the outer conductor and the inner insulation 13. Sleeve 19 may be screwed on to the projecting end of socket member 5 while its other end engages end 17 of sleeve 16 which is slotted to provide a spring grip engagement. Alternatively, both ends of sleeve 19 may be smooth and may be slotted to provide spring grip engagement with socket 5 and end 17. In another arrangement the rear end of 19 may be threaded for engagement with a screw thread provided on end 17 of sleeve 16. Insulation 6 separating sockets 4 and 5 may consist of a spacer member. A second cable may be similarly coupled to sockets 4, 5 on the other side of the panel or the panel may be wired for inter-connection between sockets on the same side.
Patent GB-278695-A (GB)
Title: Automatic releasing device for parachutes
IPC: B64D17/58
Filed: 1927-09-24
Abstract: 278,695. Galli, R., and Briquet, G. R. Oct. 8, 1926, [Convention date]. Time locks and fastenings.-Three devices are described for automatically releasing parachutes after a predetermined period of free fall; in the first, clockwork mechanism, in the second, hydraulic means, while in the third electroaneroid means releases a spring-operated knife to cut the knapsack cords. A plunger 2, Fig. 1, mounted in a streamline casing 1, is normally held against a spring 5 by a catch-member 10 which is slidably mounted on a, rod 11 and is spring-pressed into engagement therewith against the action of a cam 15 on a roller 14. The cam 15 is fixed to a shaft 16 gearing with clockwork mechanism 17 and a graduated setting dial 24. After setting, the rod 11 is lifted and turned so that pins 30 thereon, normally engaging slots in the casing, rest on the casing, and a brakemember 27 carried by the rod 11 engages the cam 15. The rod 11 is turned to release the brake when launching the parachute, and when the catch 7 is depressed a knife 3 on the plunger 2 is forced to the left to cut the cords. In the second modification, Fig. 5, the ends of a cylinder 31 containing oil or the like communicate through a passage 40 and one of a series of holes 39 in a setting disc 36. To set the, device, the disc 36 is rotated by a dial knob 38 to bring a particular 'hole 39 into register with the passage 40, and the piston 32 is pulled to the left against a spring 33. The piston 32 then forces the oil through the passage 40 in moving to the right until a pin 41 operates a hooked lever 44 to release the knife. In the third modification, Fig. 7, a vacuum chamber 36 responds to changes in atmospheric pressure to actuate a lever 47 so that at a predetermined height studs 49, 50 contact to complete the circuit of an electromagnet 51. The armature 52 is raised to release the spring- pressed knife 56.
Patent GB-855566-A (GB)
Title: Improvements relating to electrical frequency meters
Inventor: GREGSON WILLIAM
IPC: G01R23/02
Filed: 1956-08-18
Abstract: 855,566. Frequency detectors. FERRANTI Ltd. Aug. 15, 1957 [Aug. 18, 1956], No. 25304/56. Class 40(5). A frequency meter includes a transformer 10 having a primary winding 13 and two secondary windings 11, 12, an inductance 14 in series with winding 13, a variable resistor 16 being included in line with winding 11 and an inductor 19 with winding 12 the rectified output of windings 11, 12 across resistor 18, 21 respectively being combined in opposition in a meter 22, the arrangement being that an input voltage of amplitude sufficient to saturate the transformer will cause an output across secondary 11 and therefore a current in 18 which is dependent upon frequency while the current in 21 will be independent of frequency due to the opposing resistances 19, 12 but dependent only on any amplitude variations due to incomplete saturation of the transformer, the reading on meter 22 being thus directly proportional to frequency and corrected for any amplitude variation which may occur.
Patent GB-298221-A (GB)
Title: Method of and apparatus for controlling the flow of fluids of different specific gravities, especially in hydrocarbon fuel burning apparatus
IPC: F24C5/16
Filed: 1928-09-03
Abstract: 298,221. McCutchen, J. E. Oct. 6, 1927, [Convention date]. Fluids, regulating volume of flow of.- In a liquid fuel burning apparatus in which the main burner or a preheating burner heating the vapour generator of the main burner is supplied initially with carburetted air from the space above the gasoline or similar fuel in the fuel tank, the flow of carburetted air is automatically cut off when the generator of the main or preheating burner becomes sufficiently hot to vaporize the fuel. Figs. 1 and 2 show a stove in which the generator 2 for the burner 5 is heated by a preheating burner 16 having a vapour generator 18 which is normally supplied with fuel from a tank 3 through pipes 8, 15 and a control valve 14. The pipe 8 is fitted at the bottom with a removable nipple 10 having a restricted orifice 11 and communicates below the normal liquid level in the tank with an up standing pipe 12, having an inlet 21 in the compressed air space 6. The orifice 11 is of larger diameter than the discharge orifice of the generator 18. When the valve 14 is opened compressed air charged with gasoline vapour passes from the space 6 with fuel entering by the orifice 11 to the burner 16 and may be ignited by a match flame. When the generator 18 becomes sufficiently hot to vaporize the fuel a back pressure is created and sufficient fuel can enter bv the orifice 11. The escape of air from the space 6 then automatically ceases. In an ordinary vapour burning incandescent lamp the fuel supply tube 34 leading from the front to the main vaporized is fitted also the level of the fuel with a housing 36 having an inlet port 37 controlled by a float operated valve 38. The space above the fuel level in housing 36 communicates with the space above the fuel level in the font by a tube 41 and with the bottom of the tube 34 by a tube 44. Fuel passes from the housing 36 to the tube 34 through a restricted orifice 35. When the valve in the vapour generator is opened carburreted air passes from the top of the font through the tubes 41, 44, 34 to the burners or mantles where it may be instantly ignited. When the generator becomes hot the back pressure increases and only liquid fuel passes up the tube 34.
Patent GB-1485572-A (GB)
Title: Apparatus for coating surfaces
IPC: B05B15/25
Filed: 1975-06-13
Abstract: 1485572 Coating apparatus; mixing apparatus KOVERHAR AB OY 13 June 1975 [13 June 1974 (2)] 25407/75 Headings B1C and B2L Apparatus for coating surfaces by spraying, and particularly for coating chill moulds with lime liquor comprises a mixing tank 1 Fig. 1 with means, e.g. pump mixer 2 (or additionally a pump at 4) to supply the coating material to an intermediate tank 5. An air-supply opening 9 provides for aeration of the material. The impeller also mixes the material. Excess liquor is returned via an overflow 6 and chutes 7, 8 to the tank 1. The liquor is pumped by spray pumps 10 from tank 5 to the interior of a chill mould or moulds 11. The pumps operate with air at a pressure of 6 bars supplied via electromagnetic valves controlled with the casting machine. Excess liquor is purified in a basin 15 before return to the tank 1. The mixer 2 has an impeller 16 located in a tunnel or duct 18 which includes a closure plate 19 Fig. 2. Liquor is fed in via a pipe 3.
Patent GB-1508845-A (GB)
Title: Heat absorbing glasses
IPC: G03B21/16
Filed: 1975-06-16
Abstract: 1508845 Making heat-absorbing glass CORNING GLASS WORKS 16 June 1975 [17 June 1974] 25522/75 Heading C1M A glass comprising, in per cent by weight, is made by melting a batch composition which comprises NH 4 H 2 PO 4 , in an amount such as to provide 1-9% P 2 O 5  in the glass prepared. The NH 4 H 2 PO 4  prevents oxidation of ferrous oxide to ferric oxide so that the glass produced, which preferably has a strain point of at least 560C, is heat-absorbing. The glass may optionally include 0-10 B 2 O 3  and/or 0-5 ZnO, and may be used as a heat screen or lens in a slide projector.
Patent GB-968751-A (GB)
Title: Improvements in or relating to the production of granular solids
Inventor: BAYNHAM JOHN WILLIAM
IPC: B01J2/12
Filed: 1962-07-03
Abstract: 968,751. Granulating solids. SCOTTISH AGRICULTURAL INDUSTRIES Ltd. June 26, 1963 [July 3, 1962], No. 25523/62. Heading B5A. A process for the production of a dry granular solid comprises adding a solution or slurry of the solid to a stream of particles re-circulating in a confined zone, applying heat to the zone e.g. by means of a current of hot gas, to dry the slurry causing dry layers to coat the particles, the process being continued until a granular product of required size is produced which is then removed from the stream. Granulated ammonium nitrate in a rotating drum 1 is transferred from bed 4 by lifting buckets 3 into a shoot 5 into which aqueous ammonium nitrate solution is discharged from a pipe 6. Hot air is passed into the drum through a tube 7. The process is operated for 5 hours to produce granules of the required size. Specifications 950,755 and 963,160 are referred to.
Patent GB-1149563-A (GB)
Title: Dithiophosphoric acid esters, their preparation and use as pesticides
IPC: A01N57/16
Filed: 1966-06-08
Abstract: 1,149,563. Dithiophosphoric acid esters. FARBWERKE HOECHST A.G. 8 June, 1966 [9 June, 1965 (2)], No. 25558/66. Heading C2C. [Also in Division A5] The novel compounds 2-O,O-diethyldithiophosphorylmethyl - 5 - chlorobenzoxazole; - 6 - chlorobenzoxazole and - 5,7 - dichlorobenzoxazole are prepared by reacting a salt of O,O-diethyldithiophosphoric acid with an appropriate chlorobenzoxazole substituted by a YCH 2  radical wherein Y is a halogen atom or a reactive acid radical. The 2-chloromethyl benzoxazoles may be prepared by heating 2-chloroacetamino-4-chlorophenol or other appropriately substituted phenol with zinc chloride. If desired the substituents may be introduced subsequently.
Patent GB-872640-A (GB)
Title: Producing moulds for foundry purposes
IPC: B22C7/02
Filed: 1958-08-08
Abstract: 872,640. Moulding processes. SULZER FRERES S.A. Aug. 8, 1958 [Aug. 15, 1957], No. 25561/58. Class 83 (1). In a " lost wax " moulding process, the mould has a water-resistant binder and the pattern is of urea and is dissolved out of the mould with aqueous nitrous acid. The pattern may include a minor amount of polyvinyl alcohol, or a quantity of combustible fibres, e.g. cellulose fibres, which are burnt out after the dissolution of the urea. In one example the mould slurry comprises 1.5 litres ethyl silicate, 2.5 litres alcohol, 0.25 litres water, 5 c.c. hydrochloric acid, 18 kg. zirconium sand. Specifications 872,641, 872,642 and 872,643 are referred to.
Patent GB-1121198-A (GB)
Title: Vinyl-polyester copolymer latex and method of preparing it
IPC: C08F2/22
Filed: 1967-06-02
Abstract: A stable latex of a copolymer of an unsaturated polyester and a vinyl or vinylidene monomer is prepared by (1) dissolving an unsaturated polyester having an average molecular weight of 300 to 4000 and 2.5 to 5.0 butene dioate groups per molecule and derived from maleic acid, fumaric acid, and/or maleic anhydride in a vinyl monomer containing at least one <FORM:1121198/C3/1> group (or mixture of such monomers), to form a solution containing 5 to 75% by weight of unsaturated polyester, (2) emulsifying this solution in water to form an oil-in-water emulsion, and (3) copolymerizing the monomer with the unsaturated polyester in the emulsion in the presence of a free radical initiator for emulsion polymerization, to form the latex. The polyester may be sulphonated by reaction with an alkali metal or ammonium salt of sulphurous acid before being dissolved in the vinyl monomer. In the Examples: (1) a polyester is prepared from pelargonic acid, fumaric acid, adipic acid and neopentyl glycol, (2) the polyester of (1) is dissolved in vinyl acetate, emulsified in the presence of water, a condensate of propylene oxide, propylene glycol and ethylene oxide, an alkali metal salt of a dialkyl sulphosuccinic acid and potassium persulphate and copolymerized; (3) the polyester of (1) is sulphonated with sodium bisulphite, dissolved in vinyl acetate, mixed with water and potassium persulphate and emulsified, the polyester acting as a self-emulsifier, and copolymerized; (4) a polyester prepared from diethylene glycol, phthalic anhydride and maleic anhydride is used and Example (2) followed; (5) the polyester of (4) is used with styrene, water sodium hydroxide and potassium persulphate; (6) the polyester of (4) is used with ethyl acrylate, the condensate and salt of (2), potassium persulphate and water.
Patent GB-145329-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1919-10-20
Abstract: 145,329. Davey, H. Oct. 20, 1919. Valves. - In a two-stroke engine having a combustion chamber separate from the working cylinder, the valve g controlling the communication between the two is kept cool by making it hollow and arranging the stem to pass through a stuffing-box into a water tank r.
Patent GB-601499-A (GB)
Title: Improvements relating to vehicle lamps
IPC: B62J6/02
Filed: 1945-10-03
Abstract: 601,499. Attaching vehicle lamps to supports. LUCAS, Ltd., J., and NEILL, R. L. Oct. 3, 1945, No. 25734. [Class 75(iii)] A vehicle lamp body a and a socket d arranged within the lamp body and adapted to receive a bracket c are formed with contiguous surfaces of spherical or equivalent form to allow relative angular adjustment, external means p being provided for securing the socket and the lamp body adjustably together independently of the bracket c. The socket d may consist of a metal shell e containing a slotted rubber block f to receive the bracket c inserted through a slot b in the lamp body a, and the shell e may be held to the lamp body by a bolt j engaging a nut o secured to, or integral with a finger piece p. When the nut o is loosened relative angular adjustment of the socket and the lamp body may take place by allowing the bolt j to slide in a slot m in the lamp body. The bolt j may have a rounded head u abutting against the rear face of the bracket c, and a screw t may be provided in the front of the shell e to engage a hole or depression in the bracket to prevent theft.
Patent GB-820208-A (GB)
Title: Improvements in or relating to measuring devices
IPC: G01B7/02
Filed: 1955-09-08
Abstract: 820,208. Measuring displacement. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 8, 1955 [Sept. 11, 1954], No. 25749/55. Class 40 (1). [Also in Group XXXV] In a measuring device in which an alternating voltage is modulated in amplitude in accordance with an effect to be measured and the modulated voltage is used to control the rectification of a further alternating voltage of the same frequency, the further alternating voltage consists of pulses, the duration of each of which is less than quarter of the period. The device shown in Fig. 4 may be used to measure the axial displacement of a rotating shaft 10 and comprises an A.C. bridge 1, including inductances L1, L2 mounted on either side of a magnetic ring 11 on the shaft, Fig. 2, so that axial displacement of the shaft produces an unbalance voltage. This voltage is amplified at 13 and fed in phase opposition to the grids of a double triode in the demodulator 14. The anodes of this valve are supplied in phase with an alternating voltage in the form of succession of pulses e, Fig. 5, supplied to the bridge so that any phase shift between the voltages d, Fig. 5, applied to the grids and the voltage e applied to the anodes of demodulator 14 does not substantially effect the reading of a meter 12 connected to the demodulator.