baber/WOPTO huggingface dataset:
Patent GB-995182-A (GB)
Title: Improvements in or relating to gas turbine engine combustion equipment
Inventor: SMITH STANLEY FRANK
IPC: F23R3/16
Filed: 1963-06-20
Abstract: 995,182. Gas turbine combustion chambers; gas turbine blades. ROLLS-ROYCE Ltd. March 5, 1964 [June 20, 1963], No. 24673/63. Headings F1G, F1L and FIT. A gas turbine engine combustion chamber comprises an outer casing, a flame tube mounted within the outer casing and spaced therefrom, a dilution air duct extending axially alongside the flame tube, an axially extending primary combustion air duct leading to the upstream end of the flame tube, and a plurality of angularly spaced nozzle guide vanes mounted within and extending radially completely across the flame tube, each guide vane having a passage therein communicating with the dilution air duct, and the wall of each guide vane having at least one aperture communicating with the passage and spaced from the downstream end of the flame tube such that dilution air passes through the apetures to mix with the combustion gases flowing through the flame tube. A gas turbine engine combustion chamber, Fig. 2, comprises an annular wall 21 surrounding an annular flame tube 26. A wall 25, formed as an extension of the outer wall of the flame tube 26, co-operates with wall 21 to form an annular dilution air duct 27 and with an inner wall 22 to form an annular primary air duct 28. A perforated wall 30 constitutes the upstream end of flame tube 26. Hollow turbine inlet guide vanes 31 extend substantially throughout the downstream half of the flame tube 26 integral with the walls thereof. Dilution air from duct 27 flows to the interior of guide vanes 31 and enters flame tube 26 through holes 34 in the vane walls. Holes may also be provided in the leading and trailing edges of vanes 31 together with a heat shield at the leading edge. In a modification, Fig. 7, a partition 40 extends upstream from the leading edge of each vane 31 to the flame tube wall 30 to divide the annular flame tube into a series of compartments 40a. Each partition 40 is hollow having a passage 40b for cooling air communicating with the primary air duct 28 and the vane passage 32. In a further modification, Fig. 9, the guide vanes have the dilution air holes on their low pressure surfaces only. The primary and dilution air ducts are supplied with compressed air through air shoots 38, 37, respectively, arranged alternately. The entrance to each dilution air shoot 37 includes the entrance 41 to a cooling air duct 42 adjacent the inner wall of flame tube 26. Additional cooling air inlets from ducts 37, 42 to the interior of the flame tube, including holes 45 intermediate adjacent guide vanes are provided. A fuel atomizing member 43 is mounted at the entrance of each primary air duct to the flame tube 26. A curved deflecting plate 44 downstream thereof causes primary air to circulate in the upstream half of the flame tube 26 and impinge on the atomizing member 43.
Patent GB-1159067-A (GB)
Title: A Process for Treating Hydrocarbons.
Inventor: MCEUEN JOHN MICHAEL
IPC: B01J23/86
Filed: 1967-05-26
Abstract: 1,159,067. Dehydrogenating n-paraffins. ETHYL CORP. 26 May, 1967, No. 24729/67. Heading C5E. C 6-24  n-paraffins are dehydrogenated to the corresponding mono-olefins at 400-560‹ C. in the presence of a catalyst consisting of 30- 100% of an active mixture of 20-70% Cr 2 O 3 , 0À5-25% CuO and 5-45% MuOg and 0-70% of a support of Al 2 O 3 , MgO or SiO 2 . Specified n-paraffins are n-hexane, n-heptane, n-decane, n-dodecane, n-teridecane, n-methadicane, npentadecane, n-hexadecane, n-octadecane, neicosane and n-tetraeicosane. Examples describe the dehydrogenation of n-dodecane to a mixture of dodecene isomers, aromatics and cracking products.
Patent GB-1500908-A (GB)
Title: Process for production of drop streams
IPC: B05B17/06
Filed: 1974-06-05
Abstract: 1500908 Nozzles IMPERIAL CHEMICAL INDUSTRIES Ltd 7 May 1975 [5 June 1974] 24889/74 Heading B2F [Also in Division B6] A stream of drops is produced by modulation of liquid issuing from a nozzle at a fundamental frequency together with a second frequency which is twice that of the fundamental frequency, the use of the second frequency being stated to suppress the formation of satellite drops. Apparatus to produce the stream comprises a housing 30 forming a chamber 31 having a nozzle 32 and an inlet 33. One wall of the chamber is formed by an impervious membrane 38 of rubber or plastics connected to a pressure loaded piezoelectric crystal 39 to which the modulating signal is applied. The modulation waveform may include higher harmonics and comprise square waves, pulses or saw tooth functions. A magneto-strictive device may alternatively replace the piezo-electric crystal. The invention may be used in the production of granular products e.g. coffee, dried milk and fertilisers, in crop spraying, or in drop printers. In alternative forms the membrane 38 may be omitted and the crystal thus directly contacts the liquid, or acoustically matched filters may be used in the chamber, or the crystal may surround the nozzle. The membrane may be made of metal, rubber or plastics.
Patent GB-189904-A (GB)
Title: Improvements in spanners, pipe wrenches and cutters
IPC: B25B13/14
Filed: 1922-07-21
Abstract: 189,904. Vanston, T. A. July 21, 1922. Sliding-jaw wrenches; jaw faces.-In spanners, pipe wrenches &c. of the type wherein the movable jaw is guided on an inclined surface of an adjustable jaw member so as to grip the object when actuated in one direction and to slip over it when actuated in reverse direction, the movable jaw is formed with arms which span the shank and retain the movable jaw thereon. The fixed jaw of a pipe wrench is carried by a shank a, on which the slidable block b is adjustable by a nut e, the block having an inclined face b<1> to support the jaw proper c. The sides of the latter are bent round the rear edge of the shank as at c<2> to retain it thereon. In a modification the block b, Fig. 15, is adjustable by a worm e and rack e', and the jaw c is retained in position by means of pins n adapted to contact with shoulders a<5> upstanding from the reduced part a<4> of the shank.
Patent GB-741481-A (GB)
Title: Improvements in or relating to agricultural implements for thinning out, or gapping, plants
IPC: A01B41/04
Filed: 1952-10-06
Abstract: 741,481. Agricultural implements. RUSSELL'S (KIRBYMOORSIDE), Ltd., and RUSSELL, G. E. Oct. 6, 1953 [Oct. 6, 1952], No. 25025/52. Class 6 (1). A device for gapping plants comprises a number of units attached to a draw-bar 1, each unit comprising a hoeing member 28 provided with spaced blades 29 and rotatable about an oblique axis with respect to the direction of travel of the machine. The member 28 is carried in a subframe 4 adjustably secured to a main frame 2 which carries a landwheel 3 which drives the hoeing member through chain and sprocket and bevel gearing. Each unit is pivotally connected by means of a vertical axle 52 to a spring controlled parallel link suspension mechanism 6. To allow for depth adjustment of the hoeing member 28 the frame 4 is adjustable relative to the frame 2 carrying the landwheel by means of a handle 38. An adjustably mounted blade 48 is provided to clear stones away from the wheel 3 which is provided with a scraper 46. The drawbar 1 is provided with caster wheels and may be connected to a tractor hydraulic lift mechanism. The drawbar may also be provided with a steering arm so that the units may be steered by an operator seated upon a support.
Patent GB-498252-A (GB)
Title: Improvements relating to ball thrust bearings
IPC: B62D1/16
Filed: 1937-09-15
Abstract: 498,252. Self-aligning bearings. BURMAN & SONS, Ltd., and BRIGGS, T. H. Sept. 15, 1937, No. 25058. [Class 12 (i)] In a self-aligning ball thrust bearing as shown for a vehicle steering shaft or the like, the ring g is loosely mounted on the shaft e and has its lower surface seated on a complementary spherical surface having as centre the centrode j of the system.
Patent GB-1352645-A (GB)
Title: Method for halogenizing surfaces of synthetic and/or natural rubber material
IPC: C08J7/12
Filed: 1972-05-26
Abstract: 1352645 Halogenating rubber surfaces NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 26 May 1972 [28 May 1971] 25086/72 Heading C3E A rubber surface is halogenated by the application of an acidified solution of an N-halogen sulphonamide of formula R.C 6 H 4 .SO 2 .NXY, in which C 6 H 4  is the para-phenylene radical, R is H or CH 3 , X is H, Cl or Br and Y is Cl or Br. The solution may comprise N-monochloro-p-toluene sulphonamide, oxalic acid, tertiary butanol, ethyl acetate and a stabilizing agent for the sulphonamide, e.g. pyridine or chloramine-T. Other suitable acids and solvents are specified. In modifications, the rubber is first treated with a solution of the N-halogen sulphonamide and then with a solution of the acid, or vice versa. The rubber surface may be treated with a swelling agent or roughened. An adhesive, e.g. one based on a polyurethane or polychloroprene is applied to the halogenated surface, which is then adhered to, e.g. another rubber surface, preferably a halogenated one, leather, paper, textiles or plastic.
Patent GB-931420-A (GB)
Title: Injectable pharmaceutical compositions comprising 1-ethyl-1-methylpropyl carbamate
IPC: A61K9/00
Filed: 1961-07-11
Abstract: Injectable tranquillizing compositions comprise "Emylcamate" (1 - ethyl - 1 - methyl propyl carbamate) dissolved in isopropyl propylene glycol ether.  The compositions may comprise 500 mg/cc. of the active compound.
Patent GB-227398-A (GB)
Title: Improvements in socks or stockings
IPC: A41B11/12
Filed: 1924-10-22
Abstract: 227,398. Grounsell, F. J. Oct. 22, 1924. Stockings and socks.-In hose of the type having an ornamental turn-down top attached by stitching or other fastening means, an elastic band A is loosely enveloped in a hem B<1> adjacent the fold C<1>. The ornamental top C is secured inside-out to the upper edge of the hem B', or may form a hem with the top of the stocking.
Patent GB-1005829-A (GB)
Title: Improvements relating to the dyeing of carded or combed slivers of textile fibres
IPC: D06B5/00
Filed: 1963-06-25
Abstract: 1,005,829. Sliver treating apparatus. LONGCLOSE ENGINEERING CO. Ltd. and F. H. MARSH. Sept. 2, 1964 [June 25, 1963], No. 25174/63. Heading D1L. A method of preparing for dyeing carded or combed slivers of textile fibres consists in feeding the slivers into a coiler can, compressing them therein to form one or more packages or 'tops' with hollow centres and weighing upwards of 20 1b, confining one or more such packages within a container or can having a cylindrical perforated wall and a top and bottom closure, locating a tube having a perforated wall through the centre of the top or tops and securing this can assembly on a dyeing frame so that when this can assembly is placed in a dyeing tank the liquor can circulate radially through the tops. In one embodiment sliver is fed into a coiler can and pressed into a tight package or 'top' and held in this form between upper and lower discs D having several tie bands secured thereto. Several such 'tops' are then loaded into a container, larger than normal e.g. 3' 6" high, 2' 0" diameter, consisting of a base 7, a perforated body portion 13, a lid 15, a perforated central tube 17 and a nose cone 27. The dyeing frame consists of a platform 1 with a lower central boss 2 which can be mounted in a dyeing tank and a central column 3 with shackle 4 for lifting it in and out of the tank. Equally spaced around the platform 1 are four seatings 5 for receiving a lower boss of sleeve 8 of can bases 7. The can lid is in the form of a disc 15 having a flanged sleeve 16 adapted to fit slidably over the top of the tube 17. The tube 17 has top and bottom seatings 18, 19 the top seating 18 having a handling ring 22 and a series of annular grooves 23, the appropriate one of which is adapted to receive a holding ring 24. The latter is in two halves hinged at 25 and held in closed engagement by a spring plunger device 26.
Patent GB-1490327-A (GB)
Title: Methylation of phenolic compounds
IPC: B01J21/00
Filed: 1976-06-17
Abstract: 1490327 Methylation of phenolic compounds CONTINENTAL OIL CO 17 June 1976 [ 25 Aug 1975] 25212/76 Heading C2C The invention relates to a process for the liquid phase methylation of ortho-cresol to produce 2,6-xylenol and 2,3,6-trimethylphenol which comprises contacting cresol with methanol in liquid phase, at a temperature of from 300‹ to 390‹ C. and at a pressure of from 400 to 600 p.s.i.g., in the presence of an alumina catalyst.
Patent GB-617637-A (GB)
Title: Electrically heated container suitable for washing linen and/or clothes
IPC: D06F39/04
Filed: 1946-08-23
Abstract: 617,637. Heating water by electricity. TRUBERT, R. E. L. Aug. 23, 1946, No. 25218. Convention date, Aug. 16, 1944. [Class 39 (iii)] [Also in Group XIII] An electrically heated lye-washer or the like for washing linen, comprises an insulated casing 7 and lid 8 in which casing is a vessel 1 containing a vertical funnel 3 disposed in which is a heating tube 10 having an electric resistance 18. The vessel 1, in which are the water and linen, is provided with a false bottom 2 and a lid 5. Two spring strips carried by the outer lid 8 co-operate with plugs 'in the case 7 to ensure that current is only supplied to the heater when the lid is closed. The vessel 1 may be calibrated for different heights of water, to predetermine the time of heating required, and the heating tube 10 and funnel 3 may be stored away in compartments in the outer case 7.
Patent GB-330830-A (GB)
Title: A new or improved apparatus for use in the preparation of indian ink or the like
IPC: B41F17/00
Filed: 1929-08-19
Abstract: 330,830. Green, R. H. M. Aug. 19, 1929. Colour-rubbing apparatits. - In apparatus for applying Indian ink or the like to' a palette of the kind in which a rotary spindle 6 carries the blocks of ink 26, a spring 13 surrounds the spindle and presses the blocks into contact with the palette 5, and manually-operable devices are provided for lifting the spindle and maintaining it in raised position for facilitating insertion of new blocks of ink. The spindle is raised by a handle 21 pivoted to the back plate of the apparatus and engaging between collars on the spindle, and a catch 24 pivoted on the top plate of the apparatus is adapted to engage by means of a slotted end under a, collar 23 on the end of the spindle. According to the Provisional Specification, a sliding bolt is employed in place of the pivoted catch.
Patent GB-637504-A (GB)
Title: Improvements in or relating to apparatus for screw cutting and feeding for lathes and like machine tools
IPC: F16H3/42
Filed: 1945-09-28
Abstract: 637,504. Lathes. PROGRES INDUSTRIEL SOC. ANON. Sept. 28, 1945, Nos. 25277 and 25278. Convention dates, Sept. 3, 1942, and Sept. 2, 1943. [Class 83 (iii)] [Also in Group XXIV] Change-speed gearing for lathe and like feed and screw-cutting motions comprises one or more toothed wheels which slide on a splined shaft and which can engage successively with the wheels of a group of gears mounted on a shaft parallel to the splined shaft and which group is constituted by a series of involute non- sliding toothed wheels having approximately the same diameter externally but differing in the number of teeth one from the other. In a change-speed gear-box for a lathe, Fig. 3, a shaft 18 drives, through change-gears 19, a short splined shaft 1 on which is slidable a gear B1. The latter is arranged to move simultaneously with a double gear B3 so that the drive-in to the box may be through wheel d to a shaft 2 or through wheel e to a shaft 3, the corresponding drives out from the box being through wheels f, B3, and shaft 4, or through wheels g, B3, and shaft 4 respectively. The former drive is adapted to give metrical pitches and the latter Whitworth pitches. The wheels a, b, and c are controlled by the movement of a single lever and each may engage two pairs of wheels, the diameters of the wheels constituting a pair being equal, but the number of teeth in each wheel is different. The wheel B2 is clutched to the wheel cluster A when the drive out of the box is through the wheel g. Twelve speeds are thus available at the driven shaft 4 for the lead-screw and feed-shaft and these may be multiplied in fixed ratios by means not described. The change-speed box may be secured to a plate adapted to be fixed as required on different machine-tools. In the case of a lathe the lead-screw and feed-shaft are supported in a bearing adjacent the location for the speed change box for coupling up to the shaft 4 when the box is bolted in position. Helical wheels may be employed in the gear-box in which case a slidable pinion is carried on a shaft with helical splines.
Patent GB-880643-A (GB)
Title: Diamond wheel for cutting hard material
IPC: B24D5/12
Filed: 1959-07-23
Abstract: 880,643. Stone saws. NORTON CO. July 23, 1959 [Aug. 4, 1958], No. 25284/59. Class 124. A stone saw comprises a wheel having a thin centre disc portion with a rim formed of segments having a hard peripheral portion containing diamond particles and a part on each segment fixed to the disc along a junction line all points thereof being situated at different distances from the centre of the disc. As shown, a thin disc 10 is provided with a plurality of radial slots 12 to form tooth portions 13 with straight edges 14, the edges being at an angle and having segments 15 with diamond particles embedded in a tungsten carbide-cobalt matrix attached thereto by brazing or welding. The edge 14 is such that a radius intersecting the edge at the mid point makes an angle other than a right angle with the edge and it is preferred that the angle a on the leading side of the radius and nearer to the centre of the disc is less than 90 degrees.
Patent GB-238741-A (GB)
Title: Improvements in or connected with clamps for meat slicing machines
IPC: B26D7/02
Filed: 1924-10-25
Abstract: 238,741. Automatic Scale Co., Ltd., and Blick, E. L. Oct. 25, 1924. No Patent granted (Sealing fee not paid). Cutting slices in succession, holders.-In a meat-slicing machine wherein the meat clamp bar 7 is adapted to move into an inclined position. the consequent increase in the effective length of the bar is permitted by pivoting one or both ends to a link or links 13 pivoted on the vertically sliding sleeve or sleeves 9, 9<a>. In Fig. 3, one suspension link 13 is provided, the bar 7 being pivoted at the other end on a pin 8 on the sleeve 9. The link 13 may be forked to engage the bar 7.
Patent GB-172131-A (GB)
Title: Improvements in or relating to automatic electric substation systems
Filed: 1920-09-03
Abstract: 172,131. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Sept. 3, 1920. Systems for conversion. employing rotary converters or rotary transformers. - A sub-station comprises a rotary converter, a starting-motor for the converter, a switching system for starting the motor when a heavy load is applied to the directcurrent circuit, a switching system for connecting up the rotary converter through limiting resistances and disconnecting the motor when the current supplied to the motor reaches a predetermined value and a polarized switch for shortcircuiting the limiting resistances when the polarity of the direct-current ride is correct or for reversing the field winding of the converter to cause this to slip a pole if the polarity is not correct. Upon a fall of voltage on the directcurrent mains 2 a relay 13 completes the circuit of the operating winding 18 of an interrupter 4, and the operating-winding .19 of a switch 8 connecting the starting-motor 9 to the secondary winding 7 of a transformer 6. When the current supplied to the motor 9 reaches a predetermined value a switch 21 closes the circuit of the operating-winding 23 of an interrupter 10. The closure of the interrupter 10 connects the converter 3 to the transformer 6 through current limiting re sistances 11, and a switch 20, operated by the winding 23, opens the circuit of the winding 19 to disconnect the motor 9. The switch 20 is provided with hold-on contacts 20a. A polarized relay 26 completes, through contacts 32, 34, the circuits of the operating-windings of relays 33 and 35, when the polarity of the converter is correct, to complete the circuit of the operating- coil 36 of switches 37 which are arranged to shortcircuit the limiting resistances 11. When the polarity of the converter is not correct contacts 39, 40 are engaged by switches 31 to reverse the field of the converter.
Patent GB-1234654-A (GB)
IPC: G05D23/24
Filed: 1968-05-28
Abstract: 1234654 Electrically-heated cooking vessels MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 May 1968 25465/68 Headings A4A Bl and B2 [Also in Division H1] A rice cooker has a main heater winding 23, which may be in two portions as shown, and a titanate ceramic PTC resistor 21 in series therewith, both resistors being thermally coupled with the receptacle 11 containing water and rice, and the PTC resistor 21 acting as a temperature controlling device as well as a supplementary heater. A further PTC resistor 22 is connected in parallel with the resistor 21, resistor 22 being considerably less closely thermally coupled with the receptacle 11 and thereby preventing too rapid a rise in temperature of resistor 21 above its critical temperature, at which its resistance increases abruptly. Heat developed in resistor 22 is dissipated by airflow through holes 25 to holes 26 in the body 12 enclosing the resistors. Heater winding 23 raises the temperature of the rice and water and, because of the thermal coupling, the PTC resistor 21 shows a temperature rise and consequent resistance increase such that heater winding 23 produces less heat. The small amount of heat developed in resistor 21 keeps the rice warm. The PTC resistor is of barium and lead titanates, the sintered body having nickel plate electrodes. Reference has been directed by the Comptroller to Specification 1185082.
Patent GB-467715-A (GB)
Title: Improvements relating to conveyor belt installations
IPC: B65G37/00
Filed: 1936-09-18
Abstract: 467,715. Sewing-machines. PFAFF AKT.-GES., G. M. Sept. 18, 1936, No. 25467. Convention date, Jan. 24. [Class 112] [Also in Group XXX] In an installation for the production of large quantities of articles such as boot and shoe uppers, four endless conveyers 1 ... 4 are arranged side by side between two rows of sewing machines 20, 21. Pivoted arms are arranged to be swung across the conveyers 1, 2, 3 to stop'a container transported by the conveyers at any desired station. The fourth conveyer travels at a higher speed and normally articles conveyed thereby are not intercepted. The direction of movement of one of the conveyers may be reversed at will.
Patent GB-208761-A (GB)
Title: Improved manufacture of condensation products of formaldehyde and carbamide or carbamide derivatives
IPC: C08G12/10
Filed: 1922-09-20
Abstract: The condensation of formaldehyde with urea or its derivatives is effected in the presence of acids or acid salts, the amount of which does not exceed 0.5 per cent (reckoned as pure free acid) of the urea.  The proportion of formaldehyde with respect to the urea may then be lower than that normally employed.  The urea or its derivatives may be replaced by other substances, such as cyanamide or calcium cyanamide, which are converted thereto during the course of the reaction.  Examples are given of the use of hydrochloric acid as condensing agent.  Specifications 23569/04 and 181,014 are referred to.