baber/WOPTO huggingface dataset:
Patent GB-906491-A (GB)
Title: Process for demetalizing hydrocarbon oils
Inventor: SIMPSON THEODORE BERT
IPC: C10G19/067
Filed: 1961-05-30
Abstract: Metallic contaminants are removed from hydrocarbon oils boiling above 1000 DEG F., for example a petroleum residium, by treating the <PICT:0906491/III/1> oil with a fused alkali metal hydroxide at 325 DEG -700 DEG F., preferably in the presence of oxygen, and then separating the contaminants, for example by water washing, with or without prior settling.  The alkali metal hydroxide may be sodium potassium or lithium hydroxide or a fused eutectic mixture of sodium and potassium hydroxides, and is desirably employed in an amount of 0,01-2 volumes of fused hydroxide per volume of oil.  A mixture of sodium carbonate and sodium hydroxide may also be employed.  The oil may be heat soaked prior to contacting with the hydroxide, preferably at 300 DEG -900 DEG F.  Solubilizers such as phenol may be added to the hydroxide.  The viscosity of the oil may be reduced prior to treatment by the addition of a lower boiling less viscous hydrocarbon oil.  The spent hydroxide may be recycled to the process.  In the drawing, a residium from still 2 is contacted in a tower 11 with a fused alkali metal hydroxide introduced via line 15.  The mixture thus formed enters reactor 17 and is blown with an oxygen-containing gas introduced via line 20.  The mixture is held in drum 22 and then passes to settler 29, from which a predominantly oil phase passes through water washer 31 to electrostatic precipitator 34 where separate oil and water phases are formed.  The oil phase is washed in zone 36, separated into oil and water phases in 45, and the oil is recovered as product via line 46.  The hydroxide phase from 29 is washed in zone 49 with a low boiling highly paraffinic solvent such as naphtha hexane or heptane and then further washed in zone 56 with a highly aromatic solvent such as benzene, toluene, or xylene, from where a portion of the hydroxide may be recycled.  The solvent from 49 is stripped in zone 52 and recycled to 49.  The oil which remains as bottoms is free of metallic contaminants and may be blended with that from line 46.  The solvent from 56 is stripped in zone 59 and recycled to 56.  The oil which remains as bottoms is recycled to contacting tower 11.
Patent GB-741509-A (GB)
Title: Improvements in barrel locks
Inventor: SHAW ALBERT
IPC: E05B29/00
Filed: 1953-07-15
Abstract: 741,509. Barrel locks. STREBOR DIECASTING CO., Ltd. July 14, 1954 [July 15, 1963], No. 19618/53. Class 44. Relates to barrel locks of the type in which a rotatable cylindrical rotor is transversely slotted to receive retractable tumbler discs which engage conformably-shaped recesses in the lock body or stator. According to the invention, each tumbler disc B is formed with a shoulder b<SP>1</SP> on one of its longitudinal edges adapted to engage a corresponding shoulder a<SP>1</SP> in the slot in the rotor, one longitudinal edge of the tumbler disc being recessed to house and retain a spring c the rotor A being capable of receiving the spring after assembly of the tumbler disc therein. As shown, the spring c is retained by a projection b<SP>3</SP> and the disc B and is inserted into the rotor A through a bore a<SP>2</SP> which communicates with the recess b2 in the disc. The bores a<SP>2</SP> may be staggered, as shown.
Patent GB-449429-A (GB)
Title: Improvements in or relating to collapsible benches, tables, stands, stools and the like
IPC: A47B3/12
Filed: 1935-07-10
Abstract: 449,429. Collapsable furniture. SASSE, 0., and SASSE, C., (trading as SASSE, GEB.), Sperrholzfabric, Holzminden-on-Weser, Germany. July 10, 1935, No. 19747. Convention date, July 10; 1934. [Classes 52 (ii), 52 (iii), and 52 (v)] In a collapsable wooden bench, table, stand, stool, or like article of furniture, the legs are detachably connected to the top or seat by tongue and groove joints c, d between frame members or border strips band boards d each connecting two of the legs e, the tongues and grooves extending longitudinally of the legs. As shown, each pair of legs is connected by a pair of boards d, the ends d<1> of which slide into vertical grooves c in the side members b. By inclining the grooves, the legs may be given a straddled position. The side members bare attached to the top &c. by rails h at the centre only, and exert a resilient pressure inwards on the leg boards d.
Patent GB-1143293-A (GB)
Title: Servo control apparatus
IPC: F15B21/045
Filed: 1967-04-28
Abstract: 1,143,293. Fluid-pressure servomotor systems. BENDIX CORP. April 28, 1967 [May 16, 1966], No.19800/67. Heading G3P. A fluid-pressure control apparatus has a control valve 44 connected to a pivotally mounted lever 50 responsive to a variable input condition and to an opposed feedback through resilient means 84 connected to the member 30 so as to act with variable leverage on the lever 50. The lever 50 may be actuated by a bellows 60 subject to the compressor discharge pressure of a gas turbine while the member 30 is connected to the resilient means by a lever 88 and controls a fuel valve. A temperature responsive disc or discs 108 compensates for changes in the spring-load constant due to temperature changes in surrounding fluid. The relationship between input pressure and travel of the output member may be made non-linear by variation of the lever arms 92 and 90 of the lever 88 so that the angle # does not equal the angle ° or by varying the dimension #3 so that the axes of lever 88 and of the bearing at the upper end of lever 50 do not coincide, the spring 84 then varying in length with the position of the member 30. The input signal may be provided by a lever-actuated spring or by centrifugal weights.
Patent GB-1509864-A (GB)
Title: Pyridine-4-carboxylic acid hydrazides and pyridine-4-carboxylic acid hydrazones for combatting microorganisms and for regulating plant growth
IPC: C07D213/86
Filed: 1976-05-13
Abstract: 1509864 Pyridine-4-carboxylic acid hydrazides and hydrazones CIBA-GEIGY AG 13 May 1976 [14 May 1975 2 April 1976] 19812/76 Heading C2C Novel compounds of Formula I wherein X represents a chlorine atom, or a methyl or methoxy group, and A represents a group of formula: wherein R 1  represents a hydrogen atom, a C 1 -C 9  alkyl, (C 1 -C 7  alkyl)-carbonyl, (C 2 -C 4  alkenyl) - carbonyl, (C 2 -C 4 ) haloalkenyl)- carbonyl, (C 1 -C 4  alkoxy) - carbonyl, (C 1 -C 4  haloalkyl)-carbonyl or phenyl group provided that if X represents a chlorine atom R 1  is other than a hydrogen atom, or R 2  represents a hydrogen atom, or a C 1 -C 6  alkyl group, and R 3  represents a C 1 -C 7  alkyl, C 2 -C 6  alkenyl (C 1 -C 4  alkyl)-carbonyl or phenyl group, the total number of carbon atoms in the radicals R 2  and R 3  being three or more, or R 2  and R 3  together represent a C 4 -C 6  alkylene chain, and salts thereof with organic or inorganic acids are used in microbicidal or plant growth regulant compositions. Compounds of Formula I in which A is -NH-NH-R 1  may be prepared by reacting a compound of formula in which Alk is an alkyl group, with a compound of formula NH 2 NHR 1 . Compounds of Formula I in which A is HNHNHCHY 1 Y 2  where Y 1  is H or C 1 -C 8  alkyl and Y 2  is C 1 -C 8  alkyl, Y 1  and Y 2  together containing no more than 8 carbon atoms may be prepared by hydrogenating a compound of formula Compounds of Formula I in which A is -NH-N=CR 2 R 3  may be prepared by condensing a compound of formula with a compound of formula R 2 -CO-R 3 . Compounds of Formula I in which A is where R<SP>1</SP> 1  is (C 1 -C 4  alkyl)carbonyl, (C 2 -C 4  alkenyl)carbonyl, (C 2 -C 4  haloalkenyl)carbonyl, (C 1 -C 4  alkoxy)carbonyl, or (C 1 -C 5  haloalkyl)carbonyl may be prepared by reacting a compound of Formula (C) see above with a compound of Formula R<SP>1</SP> 1 -Cl.
Patent GB-404651-A (GB)
Title: A new or improved shirt cuff protector
IPC: A41B7/12
Filed: 1932-07-13
Abstract: 404,651. Garment sleeve-protectors. BIRNBAUM, C., Cleve Hall, Champion Hill, London. July 13, 1932, No. 19855. [Class 141.] Cuff protectors of the kind consisting of a flat piece of material rolled into tubular form and provided with snap or like fastenings, are made from a blank of transparent or semitransparent flexible material such as structureless cellulose shaped with rounded corners 7 at the wrist end and sharp corners at the upper or elbow end. The cleft 7 permits the outer edge 6 to be turned in over the edge of the cuff. All the edges may be bound with material similar to the blank, or with fabric.
Patent GB-883955-A (GB)
Title: Dimensionally stabilized paper in the production of abrasive coated sheets
IPC: B24D11/00
Filed: 1958-06-20
Abstract: 883,955. Paper for abrasive-coated sheets &c. NORTON CO. June 20, 1958 [July 12, 1957], No. 19919/58. Class 96. [Also in Group XXIII] Paper for coating with adhesive and abrasive grit for making abrasive-coated sheets is formed from at least 60% by volume, of cellulosic fibres and from 2 to 40% of non-hydratable fibres together with a resin and an elastomer which may be incorporated in the pulp or applied to the paper. In multiple-ply paper, one or both exterior plies may be free from resin or elastomer. The cellulosic fibres may be e.g. of wood and rope, the other fibres may be of glass, asbestos, e.g. chrysotile, or of synthetic polymers, e.g. of terephthalic esters, and may average 0.0001 to 25 microns in diameter. The resin may be of phenol-, melamine-, or urea-formaldehyde, and the elastomer of Neoprene, or butadienestyrene or -unsaturated nitrile, or isobutylene and methyl methacrylate &c. A preferred latex is of acrylonitrile 35 to 70% copolymerized with butadiene. Specifications 510,332 and 576,308 are referred to.
Patent GB-614061-A (GB)
Title: A thong and a method for producing same
IPC: C14B9/00
Filed: 1946-07-04
Abstract: 614,061. Laces. GRECU. R. July 4, 1946, No. 19976. Convention date, July 5, 1945. Drawings to Specification. [Class 43] A leather thong for making watch straps, belts or the like comprises a strip which is rolled about its longitudinal axis and has its edges pasted together. To make the thong, the edges of the strips are bevelled to ensure perfect contact when they are brought together, and one end of the strip is tapered ; the upper face, or merely the edges, are coated with paste, then the strip is introduced into a die by its tapered end and drawn slowly therethrough to shape it into a cylindrical thong, either the strip or the die or both being heated to cause immediate adhesion of the edges.
Patent GB-202814-A (GB)
Title: Improvements in servo motors
IPC: B64C13/24
Filed: 1922-07-20
Abstract: 202,814. Salmon, P. July 20, 1922. Hydraulic transmission of power; machines and apparatus. - Servomotor apparatus for operating the control surfaces of aircraft or' for other purposes comprises a pump 7, Fig. 1, preferably of the cog wheel type, drawing liquid from a tank 11 and delivering it to a chamber 13 around which are disposed a number of oscillating- vane motors. The supply of liquid to the pump is regulated by a valve 14, controlled by a spring 17 and the pressure in the pump outlet. Each motor has an abutment 20 and a movable vane 19, the vane being keyed to a valve sleeve 23 carrying a driven drum 28 and being provided with oppositely-opening passages 45, Fig. 2. An inner valve sleeve 22 is operated by a control drum 30 to admit liquid on one side of the vane and exhaust it from the other, the consequent movement of the vane and sleeve 23 afterwards closing the ports. A spring-controlled valve 34 governs the communication between the chamber 13 and the inside of the sleeve 22. Stops 52 are provided on the control and driven drums to limit their relative movement and enable the pilot to take the whole load on his control if required. Specifications 185,849, [Class 123 (i), Liquid-level regulating &c.]. and 204,817, [Class 102 (i), Pumps &c.], are referred to.
Patent GB-705612-A (GB)
Title: Improvements in or relating to arrangements for facilitating the interchanging of cages, skips or the like in pit-shaft installations
IPC: B66B19/04
Filed: 1951-08-24
Abstract: 705,612. Lift cage interchanging arrangements. SKIP CIE GES. Aug. 24, 1951 [Dec. 31, 1948], No. 20029/51. Class 78 (3) [Also in Group XXV] An arrangement for facilitating the interchanging of cages, skips or the like in pitshaft installations consists of flaps for closing the mouth of the shaft, preferably fire flaps, which have, or co-operate with, a supporting unit for the lower cable or tail rope of the installation, the arrangement being such that when the lower cable is detached from the cage or skip the lower cable is supported by the supporting unit, and the fire flaps support the cage or skip. In one form, Fig. 6, a cable gripper consisting of fixed and movable girders 17, 20 is mounted on a trolley 13-16 which is run on to the closed fire flaps of the lift shaft after the cage has been hoisted above the shaft mouth. The lower cable 21 of the lift is then gripped by the girders by tightening nuts 18, 19 and disconnected from the cage after which the trolley is moved to one side to allow the cage to be lowered on to the flaps for disconnection of the top cable. The trolley may run on rails on the flaps or the wheels 13 may be flanged to run on the slots in the fire flaps provided for passage of the cable. In another form, Fig. 7 plungers 27, 28 have screw threaded engagement with threaded rods 29, 30 mounted in opposed fire flaps 25, 26, each rod being driven by hand through bevel gearing 31 to cause the plungers to move inwards and grip the thimble 33 of the lower cable with the cage resting on the flaps. The upper cable can then be removed simultaneously with the lower cable. Instead of plungers operated by screwed rods a pair of bell-cranks may be disposed horizontally within the flaps, one pair of arms being forced outwards by a screw-operated toggle such that the other pair of arms grip the thimble in the same manner as the plungers 27, 28. In another embodiment, Fig. 12, for use where the cage thimble extends below the fire flaps when the cage is placed thereon a cable support is located in the shaft below the fire flaps and mounted on a hinge so that it can be stowed in the shaft side or swung into position adjacent the thimble 57 of the cage. In this position a pair of support arms 54, 55 may be swung by levers 56 into juxtaposition within an aperture in the thimble 57 so as to support it. The support arms 54, 55 are mounted on a vertically slidable plate which is raised by operation of a manual fluid pump 59 so as to take the weight of the cable so as to facilitate removal of the thimble securing pin on the cage. The support arms 54, 55 may alternatively be arranged to grip the thimble externally in the manner of plungers 27, 28.
Patent GB-596897-A (GB)
Title: Improvements in or relating to nozzles, branchpipes or other like liquid-directing devices
IPC: B05B15/654
Filed: 1945-08-03
Abstract: 596,897. Supporting nozzles. JEROME, J. A. Aug. 3, 1945, No. 20035. [Class 47 (ii)] A supporting device for a branch-pipe, or nozzle, e.g. of a fire-hose, consists of a suctioncup c which is secured by means of a ball-joint to the nozzle a. The nozzle a is provided internally with a jet-pump e which is connected by air passages to the suction cup and produces the vacuum therein. A further'jet pump h may be fitted in order to draw foam-making substances &c. through the pipe i into the nozzle. A ball valve f is used to retain the vacuum in the suction cup when the liquids are not passing through the nozzle. Spray producing means such as the deflector g may be attached. In a modification the jet pump is formed inside the suction cup and a ball-joint in the nozzle allows directional flow to be given to the liquid.
Patent GB-153963-A (GB)
Title: Improvements in and relating to electro magnetic switches
IPC: H01H50/64
Filed: 1919-08-16
Abstract: 153,963. British Thomson Houston Co., (General Electric Co.). Aug. 16, 1919. Electro - magnetic switches adapted to be controlled by a d i s t a n t masterswitch are retained set by permanent m a g n e t i s m and opened by a spring when a current opposite in direction to the closing current is s e n t through the operating-coil. In the construction shown. the operating-coil 7 is mounted on a hard steel core 6, and a return path for the magnetic flux is formed by an iron plate 21 and iron rods 8, on which is pivoted an armature 3. In the off position, an insulated projection 9 of the armature 3 rests on an adjustable screw 10. A contact finger 2 controlled by a coiled spring 11 is pivoted on the arm and makes a wiping contact with a stationary finger 1. When a current of proper direction and strength is sent to the coil, the armature remains attracted after the current is cut off and can be released by sending a momentary reverse current of just sufficient strength.
Patent GB-224299-A (GB)
Title: Improvements in and connected with the warp beam supporting and tensioning mechanismof looms
IPC: D03D49/06
Filed: 1923-08-10
Abstract: 224,299. Unsworth, J. Aug. 10, 1923. Letting-off warps.-The warp beam is supported at one end by a bracket 2 carried by a bracket 3, which is slidable in a groove in an L-shaped arm 5 and is clamped thereto by a nut and bolt. A bossed part of the arm is pivoted on a pin 8 passed through a slot 10 in a fixed bracket and clamped thereto by a nut. A braking chain or cable 11 passing around the warp beam is connected to a fixed bracket 13 and to a hook 15 adjustably connected to a pivoted arm 14, which is tensioned by a chain &c. 16 connected adjustably thereto and to an arm 18 pivoted on the pin 8. Hooks on the chain &c. 16 may be moved along the arms 14, 18 to vary the tension, which may, as shown, be temporarily slackened by moving a pivoted arm 19<a> having a cam-part 19 engaging the arm 18 and fitting within the bifurcated lower end 5a of the arm 5. According to the Provisional Specification, the L-shaped arm is pivoted at the junction of its two limbs, and the braking chain &c. is connected at its upper extremity to a coiled spring.
Patent GB-1424196-A (GB)
Title: Linear dimension measuring apparatus
IPC: G01B5/14
Filed: 1972-05-02
Abstract: 1424196 Caliper bore gauge J FULBECK 17 April 1973 [2 May 1972] 20372/72 Heading G1M A base 1 slidably supports a carriage 2 which is abutted at one end by a spindle 5 of a micrometer and at the other end by a dial gauge plunger 13. The base 1 has screwed into it in one of a series of holes 8 a ball ended probe 11 and the carriage 2 has a similar probe 111 which may slide in a slot 19 in the base and is screwed into one of a series of holes 9. The probe 111 has a knurled head 112 so that it may be easily re-positioned with respect to the relatively fixed probe 11. A clamping screw 17 is provided so that 1 and 2 may be locked together, and the dial gauge 12 is mounted on a screw adjustable bracket 15 and slide 21 so that it may be zeroed with respect to the carriage 2. In gauging a plain bore or initially a tapered bore 31, a short probe 111 is selected and under the action of the spring 6 the carriage 2 is retracted until the probes 11 and 111 make contact with the bore. The base 1 is then angularly moved horizontally about the ball 10 as a fulcrum to establish the probes on a diameter of the bore and the dial gauge is then zeroed against the lug 14. The micrometer is then operated to abut the carriage button 22 and give a reading with the dial gauge reading held at zero. The probe 111 is then replaced by a longer probe so that a further reading can be taken of the bore diameter at a distance advanced into the bore, and from these readings the bore taper can be readily determined by simple calculation.
Patent GB-1370517-A (GB)
Title: Rotary filter apparatus
IPC: B01D33/00
Filed: 1972-05-02
Abstract: 1370517 Rotary drum; moving band filter TECHNICAL FABRICATORS Inc 2 May 1972 [21 Oct 1971] 20382/72 Heading B1D  Suspended solids are removed from slurries by feeding the slurry continuously via inlet 64 into a tank 26 within which a horizontal rotating inward flow filter drum 40 is partially immersed. The drum 40 which has a perforated surface carries part of an endless web (130, Figs. 4-8, not shown) wrapped around its periphery the web being mounted on carrier and guide assembly 100 and running around pivot 120 in guide assembly 100 then over pivot 114 and around the drum periphery and off the drum surface again at 114. A continuous flexible sheet of filter paper 80 is fed from roll 72, around the arcuate bottom wall 30 of the tank by means of guides 82 and 84 and is fed by guide assembly 100 onto the top of the carrier web and hence onto the drum surface. The paper is pulled through the liquid by the rotation of the drum for almost a whole turn before being at 114 together with the carrier web from the drum surface. The liquid is sucked through the paper into the drum by a downstream suction pump as it rotates and leaves via the hollow shaft 54 of the drum. Solids are deposited on the paper sheet. The used paper sheet is detached from the carrier web at pivot 120, the paper sheet continuing on as the carrier web is returned around the pivot. The part of the guide assembly 100 adjacent the drum surface carries a stepping assembly (108, Fig. 2, not shown) having a knife edge (162) by the drum surface to remove the web and paper sheet and a curved lower portion (166) which seals that part of the drum surface which lies between the points at which the paper sheet and web are fed to and removed from the drum and which would otherwise be subject to suction loss. The guide assembly 100 carries means to adjust the tension of the carrier web. Tank 26 has a drain outlet 66.
Patent GB-148460-A (GB)
Title: Improvements in devices for blowing out oil pipes
IPC: F16N33/00
Filed: 1920-07-10
Abstract: 148,460. Robinson, J. G., (Assignees of Tew, G. M.). Jan. 17, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Cleaning, fluidpressure processes for. -A device for cleaning oil &c. pipes, e.g. in lubrication systems, by blowing air therethrough, comprises a tubular T-piece 2 which is inserted in the length of the pipe 1 and a turnable hollow plunger 3 through which air can be blown into the pipe. The head of the T-piece 2 may be screwed or tightly fitted to the pipe ends, and is preferably recessed at 21 to make a smooth-sided passage through the pipe 1. The plunger is furnished with a side nozzle 32, and is normally held out of the pipe 1 by a spring 4, enclosed by a cap 5. The cap 5 is provided with notches and the plunger with an engaging rib 35 for registering the nozzle 32 to point along the tube 1 in one direction or the other. The plunger is threaded at 34 for connexion to a tyre pump or air hose, and is fitted with a cap 33.
Patent GB-803221-A (GB)
Title: Improvements relating to electron guns
IPC: H01J29/48
Filed: 1955-07-14
Abstract: 803,221. Cathode-ray tubes. GENERAL ELECTRIC CO. July 14, 1955 [July 14, 1954], No. 20450/55. Class 39(1). An electron gun for a cathoderay tube consists of a concave cathode 9, Fig. 2, a focusing electrode 12 and a first anode 14 to focus the electrons to a crossover beyond the anode, a second anode 20 which is electrically connected to the first anode and spaced from it to define a fieldfree region, and a modulating electrode 18 which is located in the field-free region. The first anode 14 has a conical aperture 15 and a frusto-conical protuberance 14a with a cylindrical aperture 17. The focusing electrode 12 may have a frusto-conical portion, Fig. 4 (not shown), surrounding the protuberance 14a. The main lens is formed by the second anode 20 and a third anode 23. The electrodes are held by rivets 30 embedded in glass members 29. Suitable dimensions are given for the various electrodes, apertures and electrode spacings with suitable voltages. In another embodiment, Fig. 6, an intermediate anode 32 and a second control electrode 34 are provided in the fieldfree region between the first and second anodes 14, 20. Control electrode 34 may be used to impress a second modulating signal on the beam or as a gating electrode to cut off the beam as it is swept from one portion of the screen to another, e.g., in producing a series of discrete images.