baber/WOPTO huggingface dataset:
Patent GB-589588-A (GB)
Title: Improvements relating to gum inhibitors for gasoline
IPC: C10L1/183
Filed: 1945-03-26
Abstract: Hydrocarbon motor fuels, e.g., gasoline, petrol &c. susceptible to deterioration by gum-forming tendencies are stabilized by the addition of a small amount of a gum inhibitor substantially insoluble in caustic alkali solutions, formed by reacting a petroleum phenol with a reagent which furnishes a tertiary alkyl group in the presence of an alkylation catalyst.  In an example, petroleum phenols were extracted from a cracked gas oil with concentrated NaOH solution, the phenols substantially freed from naphthenic acids recovered by blowing the alkaline extract with CO2, and the crude phenols purified by distillation under vacuum.  These purified phenols were alkylated by heating with isobutylene, using 93 per cent. sulphuric acid as a catalyst, and the product washed, dried and purified by vacuum distillation to 25 per cent. residue.  The purified product was a substantially neutral liquid insoluble in water or in aqueous alkaline solutions and readily soluble in petroleum naphthas, including cracked gasolines.  From about 0.001 per cent. to 0.5 per cent. by weight of the petroleum phenols alkylation products are added to the gasoline to obtain satisfactory stabilization.  The alkylated petroleum phenols are more effective than the original petroleum phenols, only 6.5 mg/100 ml of alkylated phenols as compared with 10 mg/100 ml of the original phenols being necessary for inhibiting a cracked gasoline to an induction period of 300 minutes in a gum stability test.  The differences are even more marked if the inhibited gasoline is first washed with caustic soda solution.ALSO:Alkylated phenols are obtained by reacting petroleum phenols with a reagent which furnishes a tertiary alkyl group in the presence of an alkylation catalyst.  The purified product may be used as a gum inhibitor for motor fuels.  In an example phenols extracted from a cracked gas oil with concentrated NaOH solution were freed from naphthenic acids, further purified by vacuum distillation, and alkylated by heating with isobutylene, using 93 per cent sulphuric acid as a catalyst.
Patent GB-271597-A (GB)
Title: Light aluminium alloy and process of making same
IPC: C22C21/00
Filed: 1926-03-19
Abstract: 271,597. Hybinette, V. E. March 19, 1926. Alloys.-An aluminium alloy contains nickel, or nickel and cobalt, and one or more of the metals chromium, molybdenum, and tungsten, with or without one or more hardening metals which may be copper, manganese, and iron. In some cases one or more of the elements tin, lead, silver, titanium, magnesium, and silicon may also be present. The alloys are made by melting the heavy metals together and adding them to aluminium so as to obtain an alloy containing 60-75 per cent of aluminium: this alloy is then added to aluminium to obtain a final alloy containing not less than 94 per cent of aluminium. The metals of the chromium group may be used in the form of ferro-alloys.
Patent GB-374852-A (GB)
Title: Variable speed gear for driving motor vehicles and for other purposes
Inventor: PETER LAING
IPC: G11B23/00
Filed: 1931-03-12
Abstract: 374,852. Ratchet variable-speed gearing. LAING, P., Gavell Cottage, Twechar, Stirlingshire. March 12, 1931, No. 7647. [Classes 80 (ii) and 80 (iii).], In ratchet variablespeed gearing for motor vehicles, aircraft, ships and boats, &c., cranks Bl on the driving-shaft A<1> are interconnected by rods C<1> to rocking levers D<1> pivoted on a plate E which can be raised to change the gear by a screw K and nut G. Blocks N sliding in the levers D<1> are interconnected by rods P to pivot pins on the frame R and by rods S to carrierplates U loose on the driven shaft V. A reversible pawl Y pivoted on the plates U engages a ratchet-wheel X secured to the shaft. A spring p movable over its dead centre maintains the desired driving end a or a<1> of the pawl in working position. A projection b on the pawl is engageable by bars g on plates c which are loose on the shaft and are rotatable by a bellcrank lever, h pivoted on the plates U and actuated by a curved plate m secured to a manually controlled reversing-rod l moved parallel to the shaft. Friction pawls may replace the pawl Y. The reverse may alternatively be obtained by the use of gearing and clutches.
Patent GB-1218523-A (GB)
Title: Servo control apparatus
IPC: F15B9/08
Filed: 1969-02-12
Abstract: 1,218,523. Fluid-pressure servo-systems. BENDIX CORP. Feb. 12, 1969 [Feb. 28, 1968], No.7665/69. Heading G3P. A lever 14 responds to a pressure signal in bellows 18 to vary leak-off from the servo chamber 28 at 44 to control piston 30 whose movements are fed back to the lever by roller 54 loaded by piston 62. The system gain is varied by adjusting the pressure Px 2  behind piston 62 by remote valve 86 having throttling needle 98 and a seat 94. The latter is adjusted by a bi-metal stack 102 to compensate for temperature variations in the working fluid. The system set point is varied by piston 74 which acts on lever 14 under the action of pressure Px 3  controlled by a valve 120 similar to valve 86. Evacuated bellows 22 compensates for variations in return pressure P.
Patent GB-453517-A (GB)
Title: A method and apparatus for the treatment of alkali-metal amalgam obtained in electrolytic cells having mercury cathodes
IPC: C25B1/42
Filed: 1935-03-13
Abstract: <PICT:0453517/III/1> Alkali metal amalgam produced in an electrolytic cell is passed through a succession of vessels containing alkali lye at a temperature of 40--120 DEG  C. in which the amalgam is decomposed with formation of caustic alkali, the reaction being assisted by the action of contact electrodes of graphite resting on the amalgam.  Heating may be effected by a hot water or steam jacket, by electricity or by burning of the hydrogen produced in the decomposition.  The drawing shows the first of a succession of heat-insulated metal chambers through which the amalgam flows for decomposition by means of contact electrodes d.  Amalgam flows to the next chamber through a seal l in which is immersed a partition k provided with a bent pipe m whereby the lye traverses the chambers in the reverse direction to the amalgam.  A heating jacket b is provided at the bottom or at the bottom and sides. Concentrated lye is drawn off at o and hydrogen at g.  Less concentrated lye may be drawn off from the other cells if desired.  The last decomposition chamber of the series may be cooled instead of heated in order that the mercury may re-enter the electrolytic cell in a cool condition. Alternatively, the cathode contact head of the electrolytic cell may be cooled.
Patent GB-109954-A (GB)
Title: Improvements in Stay Bolts for Boilers.
Inventor: FLANNERY JOHN ROGERS
IPC: F22B7/16
Filed: 1917-05-31
Abstract: 109,954. Flannery, J. R., and Dodds, E. I. May 31, 1917. Stays.-A hole 7 bored through a stay-bolt 5 to indicate a rupture of the bolt by the discharge of steam or water is closed at its outer end and open at its inner end. To prevent the hole from becoming clogged with einders &c., its inner snd may be temporarily closed by a plug 10 of graphite or other suitable material. The outer end of the hole may be closed by a plug 8 welded in the hole.
Patent GB-577397-A (GB)
Title: Improvements in or relating to apparatus for mixing gases
IPC: B01F23/10
Filed: 1944-04-27
Abstract: 577,397. Injectors. TALLEY, H. A. E. April 27, 1944, No. 7859. [Class 71] [Also in Group II] In an injector for mixing and injecting two gases a jet A of one gas enters the inlet of a Venturi tube B and induces thereinto the second gas passed into a surrounding chamber D through an inlet E. The jet A has an orifice f of negligible depth formed by conically tapering its internal and external walls to angles of 30 and 45 degrees, respectively to the longitudinal axis. The inlet of the Venturi tube B is tapered conically at an angle of 60 degrees to its longitudinal axis, and the orifice f is mounted in the narrowest part of the tube B adjacent to the mouth thereof. Adjacent the tapered inlet, the tube B continues for a length as a cylindrical tube, and then diverges to a conical outlet with its internal wall at an angle of 6 degrees to the longitudinal axis of the tube. The inlet E is an orifice of negligible depth and is controlled by a manually operated valve F.
Patent GB-323684-A (GB)
Title: Improvements in or relating to a method of and device for sinking and building a well
IPC: E03B3/10
Filed: 1929-03-11
Abstract: 323,684. Kida, Y. March 11, 1929. Wells.-In sinking wells, the earth is first excavated to a desired depth and a foundation frame 3, of concrete &c., is formed around the top of the excavation, radial rods 4 and reinforcing bars 13, 18<1> being provided; suspension rods 5 are connected to the rods 4 and provided with stop members 6 to support frames 7, 7<1> on which an outer brick &c. wall 8 is built, soil or waterproofing material being then inserted between the wall 8 and the ground. A water-proof coating 10 is then provided within the wall 8 and an inner brick &c. wall 11 erected, reinforced concrete &c. being filled in between the walls 8, 11. Further excavation is then made and the process repeated. The frames 7, 7<1> may be supported by piles 2 and may be left in, or removed from, the finished lining. A water-proof layer 15 may be provided within the inner wall 11.
Patent GB-230643-A (GB)
Title: Improvements relating to the application of translucent coatings to vitreous objects
IPC: C03C17/02
Filed: 1924-03-29
Abstract: 230,643. Cachemaille, A. S., (Westing- honse Lamp Co.). March 29, 1924. Coating processes; water-paints. - Vitreous objects, such as electric light bulbs, are given a translucent coating by spraying them with a coating material containing a soluble siliciate, while they, or the coating material, or both, are hot. The air used for spraying may be heated, and the bulbs may be preheated by a hot-air blast. After spraying, the bulbs are passed through a heat zone for dehydration, and a setting solution, such as ammonium chloride solution, is applied to render the coating insoluble in water. The bulbs are finally dried. A suitable coating material comprises sodium silicate and kaolin, with or without colouring-matters. Specification 7069/09, [Class 39 (ii), Electric lamps, Incandescent], is referred to.
Patent GB-126788-A (GB)
Title: Improvements in and relating to Pilots for Gas Burners.
Inventor: DILUCHIO MICHAEL MURICE
IPC: F23D14/30
Filed: 1918-05-14
Abstract: 126,788. Luchio, M. M. di. May 14, 1918. Pilot jets.-The burner head 8, Fig. 2, of an incandescent gas burner is provided with a vertical passage 10 terminating in a downwardly and inwardly inclined pilot jet nozzle 11, formed integral with the burner head and projecting intc the mantle. The passage 10 communicates through an horizontal socketpiece 12, pipes 14, 16, 19, and an elbow-piece 15 with the gas supply pipe of the burner. The socket-piece 12 is provided with fingers 13, which are embedded in the burner head when moulding it. The two pipes 16, 19, Fig. 3, are connected together by a sliding sleeve 17, Fig. 3, with interposed packing 20 between the sleeve and the pipes or by a sleeve internally screwed at the ends with right and left handed threads respectively.
Patent GB-1286022-A (GB)
Title: Microwave switching device
IPC: H01P1/213
Filed: 1970-02-19
Abstract: 1286022 Waveguide coupling circuits MITSUBISHI DENKI KK 19 Feb 1970 [19 Feb l969] 8108/70 Heading H1W A microwave switch device for reciprocal or non-reciprocal operation comprises a body 14 of ferrimagnetic material disposed at the junction of two adjoining portions of a pair of wave guides with a latching conductor 18 passing through the body 14 so as to vary the division of energy between two waveguide outlets by reversing the state of magnetization of the fernmagnetic material. The body 14 is disposed axially aligned in a coupling aperture 12 and by a suitable choice of the length of body 14 and the length of the aperture 12 the device may be operated to switch energy from an input A (say) to either of the outputs C and D. An adjusting body of dielectric material 34 may be introduced into the aperture 12 to satisfy the phase requirements for complete switching from one output to the other. Dielectric matching bodies 30, 32 are provided to prevent wave reflection from the end faces of the body 14. Modification of the ferrimagnetic body 14 as shown in Figs. 5a and 5b by providing a pair of axial holes 16 for the latching conductor 18 and a plurality of transverse holes 16a for latching conductors 18a produces a magnetic state of body 14 which gives reciprocal coupling. Switching may be effected by means of pulsed currents to the latching conductors. At the input end of body 14 the e.m. wave is divided into TE 10  and TE 20  modes whose circularly polarized components in the body 14 are in anti-phase such that with only one latching conductor (Fig. 4) reversal of the magnetized state of body 14 produces phase changes of opposite sign for the two modes resulting in non-reciprocal coupling, while reversal of the magnetized state of body 14 in Fig. 5 produces phase changes of equal sign for both modes i.e. reciprocal coupling. When operating as a single throw two-pole switch the terminals not required may be terminated by a matched dummy load. Partial switching may also be used, for example the size of body 14 may be of a size such that for one magnetic state energy appears in only one output and for the reverse magnetic state equal energies may appear in the two outputs.
Patent GB-890627-A (GB)
Title: Improvements in or relating to signal storage tubes
Inventor: CALLICK ERIC BRIAN BUTLER
IPC: H01J31/18
Filed: 1960-03-08
Abstract: 890,627. Cathode-ray storage tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Dec. 6, 1960 [March 8, 1960], No. 8152/60. Class 39(1) In a direct viewing storage cathode-ray tube with storage electrode 3, secondary electron collector electrode 4, fluorescent screen 2 and " writing " and "flooding" electron beam source (not shown), an accelerating grid 5 is positioned between the storage electrode 3 and the fluorescent screen in order to accelerate the flooding electrons on to the screen. A magnetic focusing coil 6 is provided to ensure normal landing. At least one of the electron beam sources may be formed by a photocathode producing a composite stream.
Patent GB-632813-A (GB)
Title: Improved aerial mounting on motor vehicles
IPC: H01Q1/08
Filed: 1947-03-26
Abstract: 632,813. Hinges. VAUXHALL MOTORS, Ltd., TEARLE, A. G., and HARTOP, C. H. March 26, 1947, No. 8178. [Class 65 (ii)] [Also in Group XL (c)] A radio aerial mounting for use on motor vehicles comprises an insulated bracket or like member fixed to the vehicle, and a cap or ball member adapted to rotate relative to the bracket member and carrying a rod aerial. In one embodiment, Figs. 3, 4, the bracket member 2 is fitted to the vehicle roof 3 by means of a stud 4, the outer end of which is screwed into the part of the spindle 8 fitting into a horizontal recess in the bracket 2. The spindle 8 carries a rotatable cap 9 held in position by the head of the spindle and the compression spring 10. The lower end of the aerial rod 1 screws into a boss 11 on the cap 9. Depressions 14 in the cap 9 engage, under stress of spring 10, with studs 13 in the bracket 2 to maintain the aerial in selected positions. In another embodiment, Fig. 6, the insulated socket member 2 is mounted on the side 3 of the vehicle. The aerial rod 1 fits into diametral holes in the ball member 18 and passes through a flared hole 15 in the head of the bolt 16 within a cylindrical recess in the ball member. The threaded end of the bolt 16 passes through the body panel of the vehicle and is held by means of the nut 6 and insulator washer 7. The aerial and ball member can thus rotate about the axis of the bolt 16 and to a limited extent about a horizontal axis perpendicular thereto.
Patent GB-1452092-A (GB)
Title: Electric storage batteries
IPC: H01M50/176
Filed: 1973-02-20
Abstract: 1452092 Storage battery with terminal posts LUCAS BATTERIES Ltd 14 Feb 1974 [20 Feb 1973] 8211/73 Heading H1B A lead terminal post 13 connected to battery plates 12 penetrates and is burnt to a lead terminal bush 17 moulded in the plastics lid 15. To facilitate entry of the post 13 into the bush 17 when the lid 15 is assembled to the box 11 and before the burning operation is performed, a sleeve 22 of a material having a low coefficient of friction is interposed between the post and bush. Preferably, sleeve 22 is of the lid material and moulded therewith. In a modification, Fig. 3, the lower end of the bore in the bush 17 is enlarged to receive the sleeve 22.
Patent GB-1364979-A (GB)
Title: Detachable connection between a prop head and a cap therefor
IPC: E21D15/54
Filed: 1972-02-22
Abstract: 1364979 Caps for pit props KLOCKNERWERKE AG 22 Feb 1972 [5 March 1971] 8226/72 Heading E1E A mine roof support cap 1, 2, 11 is detachably secured to a prop head 4 for relative universal movement by a pin 10 which passes through a venturi-shaped aperture in the prop head 4 and is received at each end between a pair of opposed 7 carried by a support member 6. Each support member 6 is releasably retained in position by a bolt 14 passing through an aperture 13 in a lug 12 secured to the flange 11 of the cap.
Patent GB-800051-A (GB)
Title: Improvements in or relating to fluid quantity measuring system
IPC: G01F23/26
Filed: 1956-03-16
Abstract: 800,051. Electric tests and measurements. LIQUIDOMETER CORPORATION. March 16,1956 [March 28, 1955], No. 8275/56. Class 37. Apparatus for determining the total weight of liquid in a plurality of containers comprises a bridge circuit of the type described in Specification 695,074 wherein a measuring capacitor is located in each container to ascertain the volume of liquid therein and another capacitor arrangement compensates for changes in the dielectric constant of the liquid and creates an electrical quantity representing the density of the liquid, the bridge being automatically balanced by a reversible 2-phase motor, fed with the unbalance voltage on one phase, driving a potentiometer to maintain balance and also a counter mechanism which indicates the total weight of liquid in the containers. As shown, measuring capacitors Ct1, Ct2, Ct3, Ct4 in tanks 40, 42, 44, 46 respectively are supplied with A.C. of one phase from potentiometers 24 and 24a connected across part of the lower half of the secondary of transformer 4, in the case of Ct1 and Ct3 through phase-compensating resistances 38 and 38a respectively. A.C. of the opposite phase is fed to a compensating capacitor Cc and, through potentiometer 20, to a fixed measuring reference capacitor Cd in parallel with a dielectric constant compensation capacitor Cs whose dielectric is the liquid. The unbalance voltage of the bridge is fed to an amplifier 54 whose output is supplied to a 2-phase motor 60 which moves the slider 22 to balance the bridge and also operates an indicator 70 which is made to read correctly when the tanks are all empty and all full by adjustment of potentiometers 16 and 13 respectively. Details of the circuit design are given in the Specification.
Patent GB-551523-A (GB)
Title: Improvements in paper feeds for wrapping machines
IPC: B65B41/16
Filed: 1941-07-02
Abstract: 551,523. Packeting. NATIONAL BREAD WRAPPING MACHINE CO. July 2, 1941, No. 8345. Convention date, July 10, 1940. [Class 94 (i)] Relates to a wrapping machine of the kind in which an article is wrapped circumferentially in the leading end of a web of paper before the latter is severed to form the wrapper, as described in Specification 413,732 According to the invention, a pair of rollers that feed the web are separated during part of the wrapping operation so that positive feeding of the web ceases, and during this time the web is fed by frictional contact with one or the other of the rollers in order to prevent the development of excessive local tension in the web. The article a, Figs. 1 and 3, is pushed from a conveyer or platform 11 by a plunger 12 on to an elevator 13 against the pressure of a frictionallycontrolled backing-plunger 14. The leading end of the web w is clamped between the article and the plunger 14 and is wrapped along the bottom and one side of the article, as shown in Fig. 3. The web w is drawn over a plate 17 by two rolls 18, 19 which are driven in unison by interengaging gear wheels 24. The teeth of these wheels are made long enough to allow the rolls to be separated by a short distance while continuing the drive. The lower roller, 19, is carried by pivoted bars 20 which are rocked periodically by a cam on a shaft 23 to separate the rolls. When the rolls are in contact with one another, they feed the web positively, and the leading edge of the web passes downwards in front of the article a. When the latter is pushed on to the elevator, the rolls are separated to interrupt the feed of the web. The free end of the web is clamped between the article and the plunger 14, and when the article arrives at the position shown in Fig. 3, the web is partly wrapped around the article. During this movement the web is pulled into contact with the lower roll, 19, which thus feeds the web forward by friction, so that the feed of the wrapper is controlled automatically by the pull exerted by the article. The elevator now rises and during the movement the web is drawn against a roller 30 which maintains it in contact with the roller 19. Towards the end of the upward movement, the roller 30 also moves upward and the web is drawn into contact with the upper feed roller, 18, as shown in Fig. 5. the feed of the web thus continuing to be controlled by the pull exerted by the article Next, the article is moved off the elevator into a wrapping channel 16, the web being drawn under the article by the roll 30. Finally, the web is severed by. an arm 35 which swings upward and presses the web against a stationary knife 42, the web being held taut by a brake 51 on a rearward extension of the arm 35. A detector plate is provided, as described in Specification 413,732, to test if an article is present on the conveyer 11 before a wrapper is fed. If an article is absent, the brake 51 is not withdrawn from the web and the rolls 18, 19 remain separated so that the web is not fed forward.