baber/WOPTO huggingface dataset:
Patent GB-808581-A (GB)
Title: Improvements in or relating to process for the production of carboxylic acids
IPC: C07C51/265
Filed: 1956-06-11
Abstract: The invention comprises a process for the production of carboxylic acids by oxidizing a hydrocarbon with a gas containing free oxygen under a pressure of about 300 to 3000 p.s.i.g. and a temperature of about 190 DEG  to 350 DEG  C. in the presence of an aqueous solution or suspension of a base, comprising an alkali metal hydroxide or alkaline earth metal hydroxide in an amount which is, at least, sufficient to ensure that the carboxylic acid is produced in the form of the alkali metal or alkaline earth metal salt thereof.  Preferably 1-12 mols. of base per mol. of hydrocarbon are used.  Sodium and calcium hydroxide are specified bases.  The following starting materials are mentioned: methyl, ethyl, propyl, butyl and higher alkyl derivatives of benzene, toluene and ethyl benzene, heptadecane polycyclic aromatic hydrocarbons, alkyl polycyclic hydrocarbons, and naphthenic hydrocarbons.  The base used is preferably sodium hydroxide in solutions of 10-50 per cent concentration, by weight or higher. A catalyst or oxygen carrier such as the oxides and hydroxides of manganese, cobalt, nickel, iron, copper, bismuth, lead, vanadium, tin, chromium, mercury, molybdenum and silver, zinc acetate or manganese or cobalt naphthenate may be used.  Examples are given of the oxidation of mixed xylenes to toluic and phthalic acids, o-, m- and p-xylenes, to the corresponding toluic and phthalic acids, petroleum scale wax (average molecular weight 300) to aliphatic acids; a poly-nuclear aromatic stream obtained as a synthetic Tower Bottoms containing pentamethyl benzene, ethylated naphthalenes, methylated anthracenes, phenanthrene, methylated phenanthrenes, acenaphthene and methylated acenaphthenes, to a mixture of water-soluble and water-insoluble acids and a non-carboxylic product containing a carbonyl group; toluene to benzoic acid, and ethyl benzene to acetophenone and benzoic acid. The oxidation of heptadecane to formic and pentadecane carboxylic acids is mentioned. When toluic acids are formed they may be separated, recycled and converted to the corresponding phthalic acid.  The acids formed may be isolated from the reaction mixture by extraction, distillation, or simple phase separation to remove any unreacted hydrocarbons, and the free acid liberated by adding a strong mineral acid to the mixture. Water-insoluble acids may then be recovered by filtration, and those which are soluble by extraction with a volatile solvent.
Patent GB-145695-A (GB)
Title: Improvements in friction clutches and brakes
IPC: F16D13/16
Filed: 1920-06-30
Abstract: 145,695. Seigneur, L. June 30, 1919, [Convention date]. Blocks acting on drums.-In expanding-segment friction clutches and brakes, balls or rollers 6 are carried in slots in a flange 13 on a sleeve 2 secured to the shaft 1 and are pressed by a sliding cone sleeve 5 into contact with cam surfaces 14 on the clutch or brake segments 4 which are connected to the sleeve 2 by an endless spring 7 secured to stops 8 on the segments and to stops 9 passing through slots in the segments and secured to the sleeve 2. The segments are forced against the drum 3 forming the other member of the clutch or brake and are tightened automatically by the action of the cams 14 if slip occurs.
Patent GB-1008397-A (GB)
Title: Airplane tire and retreading same
IPC: B29D30/54
Filed: 1962-05-10
Abstract: 1,008,397. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. May 10, 1962 [Aug. 14, 1961], No. 17992/62. Heading B7C. . In a new or retreaded airplane tyre having a grooved tread, a tread reinforcement comprises at least one ply 8 reinforced with lengths of filamentary material 10 between l/ s  and 3 inches long and, between the ply 8 and tread outer surfaces, at least one reinforcing parallel cord ply 14 parts of which lie between the grooves radially outwardly of the groove bottoms, the reinforcing plies being spaced from one another by at least one layer of rubber. The filamentary material may be brass-coated steel wire or cotton, rayon or nylon flock, filaments or cords, or used tyre cord, and may lie randomly or be orientated in its ply.
Patent GB-325767-A (GB)
Title: Improvements in neck tie presses
IPC: A47G25/78
Filed: 1929-06-13
Abstract: 325,767. Twigg, R. E., and Watts, J. R., (trading as Watts, J.). June 13, 1929. Addition to 244,927. Tie presses.-A tie press comprises a holder in the form of two or more boards pressed apart by spring the tie being folded on the boards which are then inserted into an openended box. The boards d, e, Fig. 2 may be pressed apart by longitudinally arranged springs such as g, and an additional hinged flap e<2> may be provided for holding the end of the tie. The boards may be connected by springs so as to open book fashion their inner surfaces having pads which grip the middle part of the tie between them when the boards are closed. The box a, Fig. 1, may be made of wood or resilient metal and may have bound sides b<2>.
Patent GB-222598-A (GB)
Title: Improvements in press studs
IPC: A44B17/00
Filed: 1923-07-16
Abstract: 222,598. Hoare, C. J., and Allday, N. July 16, 1923. Press - button fasteners; stud-and-socket fastenings.- In large press buttons for securing the hoods of vehicles and like purposes where a headed stud is engaged by a socket. carrying a pair of S- shaped retaining springs, the socket member is provided with a sleeve which engages the retaining springs so as to be normally retained in an inward position in the socket, and when pulled outwards spreads the springs and disengages them from the head of the stud. The springs 7 are held between the socket 6 and a plate 14, both of which have Ranges for guiding the sleeve 11 which has a. pair of opposite inclined slots 12. The sleeve is shown as having been pulled outwards by its knob 16 so that the arms 8 of the springs 7 have ridden up the inclines 12 on the sleeve to release the stud 3, shown in dotted outline. The knob 16 is secured to the sleeve by engaging the end of the sheet-metal stamping in a circumferential groove in the sleeve. The springs can also be released from their engagement with the head of the stud by turning the sleeve through 90‹.
Patent GB-620495-A (GB)
Title: Improvements relating to light projectors
IPC: F21V11/16
Filed: 1946-06-18
Abstract: 620,495. Reflectors; light projectors. WHITING, J. G. June 18, 1946, No. 18287. [Classes 75(ii) and 75(iv)] A light projector of general paraboloidal form comprises a plurality of concavely curved reflecting areas extending transversely across the projector, the curvature of the areas being such that the rays reflected by each area from a light source at the focus of the projector converge along an individual generally transversely extending curved line. A reflector 18 is fitted in the conical end 11 of a casing 10 supported in the frame structure 19 of a vehicle and comprises horizontally disposed elongated areas 34a, 34b &c. each of which is concavely curved in vertical section, the lower edges of the areas 34a &c. being parabolas formed by the intersections of planes inclined to the horizontal and paraboloids of different parameters each having the electric filament 36 as focus. Each area 34a &c. is developed upwards from the parabola forming its lower edge to form a surface which reflects crossed rays such as 35g and 38g all the rays in the same vertical plane crossing at a point 39g, and all such points of convergence for any one area 34a &c. lie on a substantially parabolic curve. The rays 35g &c. reflected from the lower edges of each reflecting area are substantially parallel to the longitudinal axis 37 of the reflector but the rays reflected by the central portion of the lower edge of any one area are vertically above the rays reflected from the side portions of the lower edge of the same area. Metal or other shields 26 transversely curved so that the curvature is greater at the front 67, Fig. 3, than at the rear end 27 are disposed in a parallel generally horizontal arrangement within the casing so that each shield projects by a different amount into the reflector and light from each reflecting area 34a &c passes between a pair of these shields; light from a condensing lens 31 in the lamp bulb passes through the space between the middle pair of shields. Different effects may be obtained by painting the shields different colours or by polishing them or by making then. translucent. The relative vertical heights of the areas 34a &c. and the relative spacing of the shields 26 may be varied. The front of the casing 10 is closed by a glass plate 20 held against a gasket 21 in the vehicle frame 19 by means of a bezel ring 22.
Patent GB-1300831-A (GB)
Title: Fuel control apparatus for a gas turbine engine
IPC: F02C7/232
Filed: 1970-04-16
Abstract: 1300831 Fuel control apparatus for gas turbine MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 16 April 1970 [17 April 1969] 18300/70 Heading F4T [Also in Divisions F1 and F2] In a gas turbine engine comprising a compressor 1, a combustion chamber 2, turbine 3, a fuel injection device 13 and a differential pressure regulating valve 18 for maintaining a substantially constant fuel pressure upstream of a fuel injection device, the fuel injection device has at least one port whose size can be varied to control the quantity of fuel injected, and actuating means, is provided to control the size of the port or ports, a governor 31 moderating the operation of the actuating means when the engine speed is excessive. The injection device may comprise a spool valve 14, axially movable in a housing, with at least one fuel metering supply 15, the spool valve being arranged to restrict the slot 15 and thus define a port and being connected to or forming part of the actuating means which may be hydraulically, electrically or mechanically actuated. Fuel is drawn from tank 11 by pump 9 to fuel injection device 13, passing through line 12 and into atomizing head 42 containing swirl chamber 16 and nozzle orifice 17, and compressor air is conveyed by line 22 into chamber 24 to pneumatically control the position of a rubber diaphragm 26, anchored at end 50 to cover 51, and thus spool valve 14, being directly connected thereto. The governor 31 controls stops 35, levers 37, 38, bleed valve 39 and thus diaphragm 26 via line 40 to lower air pressure in chamber 24 if a predetermined engine speed is exceeded. In the embodiment of Fig. 3 (not shown) a spring-biased piston (58) replaces diaphragm 26, and in the embodiments of Figs. 4 and 5 (not shown) the diaphragm is replaced by an electric motor 60<SP>1</SP> and a solenoid operated linear motor (75) respectively controlled by an electrical system including a governor (61<SP>1</SP>) in response to such parameters as engine speed, turbine exhaust gas temperature, and compressor inlet temperature.
Patent GB-560429-A (GB)
Title: Improvements in and relating to systems of protection for electric power circuits
IPC: H02H9/08
Filed: 1942-12-24
Abstract: 560,429. Protective cut-out arrangements. BRITISH THOMSON -HOUSTON CO., Ltd. Dec. 24, 1942, No. 18303. Convention date, Dec. 31, 1941. [Class 38 (v)] In the adaptation of the invention of Specification 176,191, [Class 38 (v)], to transformers having at least two star-connected windings and a closed delta winding, or to other transformers having a low zero phase-sequence reactance relatively to the positive phase-sequence magnetizing reactance, the setting-up in the circuit connected to the winding having the earthed star-point of excess-voltage stresses due to resonance effects, is prevented by forming an artificial star point 31 with a further transformer 28 not inductively related to the main transformer 4, and earthing such artificial star-point through the arc-suppressor coil 32 which may be short-circuitedeither directly, Fig. 3 (not shown), or at the star-point 9 of the main windings 6 in order to, increase the leakage current and trip the breaker 19 if the arcing- fault is not suppressed within a given time. The star-point 8 of the windings 5 may be directly earthed or, Fig. 3 (not shown), connected to earth through a suppressing coil which can be short-circuited by the apparatus now to be described for coil 32. The earthing switch 33 is latched open at 34 and tripped by a coil 49 subject to a relay 47 in turn controlled by a time relay 44. A further time-relay 38 is constantly energized over closed contacts 37 to open its contacts 39, but if the fault current through the coil 32 flows for a sufficient time for contacts 39 to close in series with closed contacts 40, a relay 41 is energized and in turn de-energizes 44. The reset coil 51 is energized under control of a push-button switch 54 provided the contacts 56 of relay 57 are not still opened by the earth-current.
Patent GB-966171-A (GB)
Title: Knotter for fisherman's knots
IPC: B65H69/04
Filed: 1963-05-09
Abstract: 966,171. Knotting-machines. WILDT MELLOR BROMLEY Ltd. May 9, 1963 [May 12, 1962], No. 18338/63. Heading D1C. A knotter for tying fisherman's knots, having two rotary bills, has means for locking the mechanism against actuation until the yarns to be knotted have been correctly placed in the yarn receiving slots. The knotter (Fig. 4) comprises a trigger 15 pivoted at 29 to operate the pivoted elements 18, 19 which engage and cross yarns placed in slots 5 and 6 and place their ends around bills 10 rotated by the gears 13,14. The completed knot is stripped from the bills by the stripper 22 actuated by the trigger through connections 24, 25. Independent locking elements 31, 32 (see Fig. 1) are each pivoted to a side plate at positions 33 and biased by springs 34 to positions where their extensions 35 engage recesses 37 in the elements 18, 19 to lock the latter, and thus the rest of the mechanism until the correct placing of yarns in both slots 5, 6 depress the extensions 31b, 32b of the locking elements and withdraw the extensions 35 from the recesses 37 and free the mechanism for knotting.
Patent GB-353184-A (GB)
Title: Process of depurating waste water containing cyanide
IPC: C02F9/00
Filed: 1930-06-16
Abstract: Waste water containing cyanide is treated in counter-current, without previous heating, preferably in an irrigation plant, with gases containing carbon dioxide such as kiln gases, waste gases of blast furnaces, and exhaust gases of gas engines, to decompose the cyanide, hydrocyanic being recovered in known manner.  The temperature of the gas used is immaterial.  The gas may pass up an iron pipe packed with fireclay down which a cyanide solution containing say 1 gram or 0,1 gram of HCN per litre trickles. The discharged water contains at most only traces of hydrogen cyanide.ALSO:Waste water containing cyanide is treated in countercurrent without previous heating, preferably in an irrigation plant, with gases containing carbon dioxide such as kiln gases, waste gases of blast furnaces, and exhaust gases of gas engines, to decompose the cyanide, hydrocyanic acid being recovered in known manner.  The temperature of the gas used is immaterial.  The gas may pass up an iron tube filled with fireclay down which a cyanide solution containing say 1 gram or 0,1 gram of HCN per litre trickles. The discharged water contains at most only traces of hydrogen cyanide.
Patent GB-1358233-A (GB)
Title: Deposition of a silver layer on titanium or titanium-based alloy
IPC: C23C14/06
Filed: 1972-04-20
Abstract: 1358233 Coating Ti with Ag by evaporation VEREINIGTE FLUGTECHNISCHE WERKEFOKKER GmbH 20 April 1972 [20 April 1971] 18441/72 Heading C7F A Ti or Ti-based alloy article is coated by evaporation with pure Ti, which is coated with Ni, which is coated with Cu, which is coated by evaporation with Ag. The layers may be 100- 300 nm thick; the surface of the original body may be etched and the oxide film subsequently removed by ion-bombardment in argon prior to the coating process; the Ti may be evaporated by electron-beam heating, and the Ag may be thickened electrolytically.
Patent GB-582880-A (GB)
Title: Improvements in or relating to float-controlled apparatus for liquid level indicators or the like
IPC: G01F23/50
Filed: 1944-09-27
Abstract: 582,880. Indicating liquid-levels. SMITH & SONS (ENGLAND), Ltd., S., and DAVIS, W. O. Sept. 27, 1944, No. 18503. [Class 123 (i)] In a float-controlled liquid-level indicator or the like in which guide means 32 engaging the float 11 constrain to move it rectilinearly and a helically shaped member 14 also engaging the float is rotatable relatively to the float so as to convert the rectilinear movement to rotary movement, the guide means 32 permit, in a plane at right-angles to the rectilinear path, freedom of movement of the float in one direction only and the helically shaped member 14 permits, in the same plane, relative movement between that member and the float only in a direction at right-angles to the first direction. In the form shown the float is composed of cork discs with two thin fibre discs 23, 24 one at its upper end and the other near its lower end. Guide strips 32 and a helical strip 14 engage respectively in slots 33 and a central opening. 26 in the upper fibre disc 23, the slots 33 and opening 26 being long enough to allow relative movement between the float and strips but only wide enough to form a good sliding fit between the engaging parts. The lower disc 24 also has two peripheral slots one of which is wider than the other to allow for lack of parallelism in the guide strips, and a central opening with a waist to prevent swinging of the float about a horizontal axis. The cork discs have central openings and V-shaped recesses 27 in their peripheries The helical strip 14 has a ball-bearing at its lower end and a crank pin 21 at its upper end engaging a crank 22 which rotates a variable electric transmission connected with an indicator. The helically shaped member 14, instead of being a strip, may be a rod of cruciform section or a tube compressed to form two helical wing portions, the openings in the discs 23, 24 being correspondingly modified in shape.
Patent GB-1505469-A (GB)
Title: Method of and apparatus for feeding articles
IPC: B65G47/14
Filed: 1976-05-06
Abstract: 1505469 Dispensing correctly-oriented articles WICANDERS KORKFABRIKER AB 6 May 1976 [7 May 1975] 18657/76 Heading B8U The apparatus described functions to feed articles, such as bottle-closure caps, to a discharge channel 20 such that the articles pass through the channel in the correct orientation, which in the case of closure caps means that their flat top discs 1 are downward and their gripping flaps 4 face rearwardly of the direction of movement. The apparatus comprises a table 5 which is slowly rotatable in the direction of the arrow F, a stationary wall 8 located above table 5 such that a gap 9 is formed therebetween, a conical sliding surface 11 located above table 5 on to which caps are randomly deposited and slide down towards the table 5 where they are blown towards the gap 9 by air flowing through a gap 11b between the lower edge of the surface 11 and the table 5, and the gap 9 due to its height B will only accept correctly oriented caps which are then carried by the rotating table 5 to a discharge station 17 which comprises a gap in the wall 8 with which two blowing nozzles 18, 19 communicate. Correctly oriented caps in the gap 9 are blown by the nozzle 18 into the discharge channel 20 whereas incorrectly oriented caps which reach the station 17 are blown by the nozzle 19 back towards the surface 11. Incorrectly oriented caps can be blown back towards the surface 11 before reaching the station 17 by means of air supplied through stationary nozzles 14 which co-operate with inwardly directed throughholes 7 formed in the plate 5. In a further embodiment, Fig. 4 (not shown), there is no gap between table 5 and surface 11. Air is supplied by means of nozzles 23-26 of a rotatable device 22 to blow the caps towards the gap 9.
Patent GB-1342456-A (GB)
Title: Process for the preparation of oxidation catalysts and catalysts obtained thereby
IPC: B01J23/16
Filed: 1972-04-21
Abstract: 1342456 Ammoxidation process SNAM PROGETTI SpA 21 April 1972 [23 April 1971] 18744/72 Heading C2C [Also in Divisions B1- B2] Acrylonitrile is produced by the ammoxidation of propylene in the presence of a catalyst prepared by drying a mixture of oxides of Fe and Sb, adding ammonium bicarbonate or urea as porogen, pressing or extruding the mixture and heating to activate the catalyst and remove the porogen.
Patent GB-1124888-A (GB)
Title: Resistance welding machine for welding sheet metal
IPC: B23K11/30
Filed: 1966-04-28
Abstract: 1,124,888. Welding by pressure. SOUDRONIC A.G. 28 April, 1966 [3 May, 1965; 26 Oct., 1965], No. 18754/66. Heading B3R. In a resistance welding machine having a pair of electrode rollers over which a conductive wire is fed in succession, means are provided for moving the rollers from a spaced apart position to a proximate position and means are provided for taking up a running loop in the wire produced by stretching of the wire during welding. The running loop is collected when the electrode rollers are in the spaced apart position. A machine for the welding of tinned iron or aluminium plates comprises a fixed bracket 1 carrying a lower grooved electrode roller 15 and a pivoted arm 5 acted on by a cylinder and piston device 6, 8. The arm 5 carries the upper grooved electrode roller 17. A conductive wire 19 is fed from a reel 21 over a guide roller 23 to the electrode roller 15 and on leaving the roller 15 is guided over a driven roller 25, a spring tensioned roller 27 and rollers 35, 37 before passing over the electrode roller 17. From the roller 27 the wire passes over a driven roller 39 to a spring tensioned roller 41 and finally to a driven collecting reel 44. The rollers 25, 39 are provided with separate drives connected by a free wheel over-running clutch and the stretch produced during welding is taken up by the spring tensioned rollers 27, 41 the roller 39 driving slightly faster than the roller 25. The roller 39 drives faster when the electrode roller 17 is spaced from roller 15 to pull up the loop and engage the lever carrying the roller 27 against a stop 33. The pivoted arm 5 may have clamping devices to limit the deformation of the wire when it is lowered on to the work and a pair of profiling rollers may be provided adjacent the guide rollers 23 and/or 37 to form a desired profile on the wire. The wire 19 if fed through V-shaped grooves in the feed rollers 25, 37 may transport can bodies to be welded.
Patent GB-910346-A (GB)
Title: Improvements relating to electric switch devices
Inventor: FEHRENBACH ALFRED
IPC: H01H71/50
Filed: 1961-05-24
Abstract: 910,346. Automatic circuit-breakers. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. May 24, 1961, No. 18782/61. Class 38 (5). A circuit-breaker having thermal and electromagnetic tripping means has at least part of its tripping mechanism mounted between two walls spaced apart by a plate which has a plurality of pliable lugs which serve as back stops for the electromagnet armature and the trip latch. As shown, the two walls 1, 2 on a base 3 are spaced apart by a plate 6 and engage recesses 13 therein. A pliable lug 8 acts as an adjustable back stop for a pivoted armature 16 controlled by a trip coil 22 and biased by a spring 21, the tension of which is adjustable by bending a lug 11 of the plate 6 to which it is attached. A pliable lug 9 acts as an adjustable back stop for a pivoted latch 17 which can be moved by the armature 16 or by the thermal device 18 to trip the circuit-breaker. A lug 7 on the plate 6 receives one end of a spring 12 which biases on operating lever (not shown), pivoted on a spindle 4 carried by the walls 1, 2. A lug 10 limits the movement of the latch 17.