baber/WOPTO huggingface dataset:
Patent GB-137410-A (GB)
Title: Improvements in and relating to electrical switches
IPC: H01H21/42
Filed: 1919-02-20
Abstract: 137,410. Thorne, J. H. Feb. 20, 1919. Switches, quick-action. - In a, quick-action switch fuse, change-over, or the like, the contacts-carrying spindle 7 is actuated through the medium of levers 5, 6 disposed upon opposite sides of the frame 9 and guided or partly guided by slots 11, 14 therein, the quick action being effected by a spring 3 arranged about an arm 2 in the actuating-spindle 1 and disposed between the spindle and a boss 4, which is rotatably carried with respect to the lever 5 by an end pin 8 projecting through the lever. The pivot 10 connecting the two levers 5, 6 passes through the slot 11 of the frame, the operating-handle 18 of the switch being either upon the spindle 1, as shown, or upon the arm 2. To assist or ensure the movement of the pivot 10 in the slot 11, a two-armed lever 12 may be fixed upon the spindle 1 to bear upon the lever 6. In the end positions of the parts, the pin 8 engages with one or other of the snugs 15, which tend to hold the device against movement except when the hand-lever is actuated.
Patent GB-920957-A (GB)
Title: An improved process and apparatus for producing yarn packages from fibrous material
IPC: D01H9/18
Filed: 1961-02-06
Abstract: 920,957. Spinning processes. H. GLASTRA. Feb. 6, 1961 [Feb. 10, 1960], No. 4407/61. Class 120 (3). A spinning machine 1 is linked to a winder 2 by a conveyer belt 4. When tubes 3 are full of yarn the machine 1 is stopped and the tubes are doffed by a mechanical hand (not shown) which places empty tubes 5 on the spindles. The full tubes are conveyed by the belt 4 to the winder 2 and as they become empty are returned by the belt to the machine 1. Instead of stopping the machine 1 during the exchanging of the tubes individual spindles may be stopped. The yarn may be wetted before and/or during rewinding.
Patent GB-233083-A (GB)
Title: Improvements in and connected with sustaining devices for aircraft
IPC: B64C23/08
Filed: 1924-02-21
Abstract: 233,083. Short, H. O. Feb. 21, 1924. Planes, construction of; propelling.-A sustaining device for aircraft comprises a rotary surface at the leading edge of an aerofoil driven in a direction to project a current of air over the upper surface. The device may comprise a roughened, serrated or bladed roller 1, Fig. 1, mounted to form the leading edge of a wing and driven in a clockwise 'direction at high speed. Additional rollers may be mounted in recesses in the upper surface of the aerofoil, or small, bladed rollers may be mounted as shown in Fig. 4. Alternatively endless travelling bands, supported on rollers, extend over the whole periphery of the wing and are provided with serrations on the outer surface. These bands may be in narrow sections separated laterally from one another by laths or flexible members.
Patent GB-1248038-A (GB)
Title: Improvements in or relating to display devices
Inventor: COLLIER DOUGLAS GEORGE
IPC: G09F11/08
Filed: 1968-01-29
Abstract: 1,248,038. Optical top. D. G. COLLIER J. J. COLLIER and B. COLLIER. 10 Jan., 1969 [29 Jan., 1968], No. 4475/68. Heading A6S. [Also in Division G5] Transparent tapes, each having a series of markings e.g. different forms of a feature of a human face, may be wound from one spool 5 to another between a reflecting surface 4 and a viewing aperture 2 in a casing 1, whereby the markings placed on display may be varied. In this way the viewer sees a composite picture in the aperture 2 formed by the combination of the markings. Each spool may be turned independently by a knob (8) Fig. 1 (not shown) in either direction. The tapes may be of plastics film.
Patent GB-829917-A (GB)
Title: Dyes derived from iron complexes of -a-nitroso--ß-naphthols
IPC: C09B57/10
Filed: 1957-02-11
Abstract: The invention comprises dyes of the formula <FORM:0829917/IV(c)/1> wherein R is -SO2CH3, -SO2N(CH3)2, -SO2N(C2H5)2, or a morpholinosulphonyl radical.  They are made by nitrosation of the corresponding unnitrosated naphthol, and treatment of the nitroso compound with ferric chloride in alcohol.  Examples describe the nitrosation of each of the following and the reaction of the nitrosated products with ferric chloride in ethanol; (1) 2-naphthol-6-N.N-dimethyl or diethyl sulphonamide, (2) 2-naphthol-6-morpholinyl sulphonamide, and (3) 6-methylsulphonyl-2-naphthol.  The products dye wool and nylon.
Patent GB-233463-A (GB)
Title: Improvements in processes for making briquets
IPC: C10L5/02
Filed: 1924-02-22
Abstract: 233,463. Hobson, F. E. Feb. 22, 1924. Rolling-machines ; moulding fuel blocks.- Briquettes are formed from pulverous, non- adhesive, carbonaceous matter mixed with a binder by passing a roller back and forth over the mixture while hot and retained within channel walls separated the width of the roller only till. compacted. The channel is about three times the depth of the briquettes and the pressing roller weighs 250 lbs. for each inch of channel width. The bar of material is scored after it is compressed and while still in the channel. With asphaltum binder, the temperature of the material may range from 90‹ F. to 300‹ F. The invention is applied particularly to the manufacture of briquettes from sawdust and coal distillation residues, a suitable composition being distilled coal residue 67 per cent, distilled sawdust residue 23 per cent, and asphaltum binder 10 per cent.
Patent GB-978537-A (GB)
Title: Fluid treating apparatus
IPC: B01D29/15
Filed: 1963-02-05
Abstract: 978,537. Filtering apparatus. SYLVAN POOLS Inc. Feb. 5, 1963 [Sept. 11, 1962], No. 4625/63. Heading B1D. Apparatus for treating fluid received from a reservoir comprises a chamber containing a filter medium B formed between two shells 10 and 15, the first shell having an aperture through a wall for the passage of fluid and being disposed around the second shell 15, a collector 25 for collecting fluid which has passed through the chamber, a conduit 30 disposed within the second shell and connected both to the collector 25 and to the reservoir and heating means for heating fluid received by the conduit, e.g. gas burners 46. Preferably collector 25 is made of foraminous material, e.g. inner and outer layers of foraminous material spaced apart by reinforcing means. Each shell 10, 15 has an elongate neck portion and a base portion, the neck portion of the first shell having fluid inlet means and being disposed around the neck portion of the second shell in spaced relation relative thereto to define a jacket for fluid and the base potrion of the first shell being disposed around the base portion of the second shell in spaced relation relative thereto to provide the space for the fluid filter, and wherein the fluid heater is disposed within the base portion of the second shell, extends in to the neck portion of the second shell, and communicates with the fluid outlet. U.S.A. Specifications 2,953,937 and 2,982,148 are referred to.
Patent GB-468298-A (GB)
Title: Improved method of and apparatus for washing and/or blending solid suspension in liquid
IPC: C06B21/00
Filed: 1936-02-17
Abstract: 468,298. Mixing &c. apparatus. BOWDEN, R. C., and PARSONS, J. D. Feb. 17, 1936, No. 4750. [Class 86] Apparatus for mixing or similarly treating pulpy material comprises a vessel from the bottom of which the material is drawn by a pump and returned by pipes arranged tangentially to the vessel whereby a vortex is produced and air passes to the pump together with the material. The vessel a, the bottom of which may be conical or flat, is fitted with one or more pipes leading to pumps d by means of which the material is drawn from the lowermost part c, being returned by the tangentially arranged pipes e.
Patent GB-1138331-A (GB)
Title: Improvements in, or relating to, electric tumbler switches
Inventor: HACKETT ARTHUR WILLIAM
IPC: H01H23/08
Filed: 1965-02-04
Abstract: 1,138,331. Snap - action switches. H. MILLER & CO. Ltd. 4 Feb., 1966 [4 Feb., 1965], No. 4799/65. Heading H1N. A tumbler switch comprises a body formed with a chamber 10 and an operating dolly comprising a cylindrical and moving-contact carrying hub 3 making a rotatable fit within chamber 10 and a finger piece 4 extending radially from hub 3 through an aperture 11 in one end of the body and fixed contacts 18, 19 anchored in channels 12, 13 in the other end of the body. Moving contact 15 is a roller or ball spring loaded by compression spring 22 either against the end of slot 3a in hub 3 or against pin 23 passing through hub 3 into the walls of the body to relieve hub 3 of spring forces which would cause friction between hub 3 and the interior of chamber 10. Fixed contacts 18, 19 are retained by lugs. The body is in halves located by studs 8 and seamed together by rivets 8a and is mounted on a panel 24 by nut 26.
Patent GB-671574-A (GB)
Title: Improvements in or relating to a method and apparatus for measuring gas flow
IPC: G01F1/00
Filed: 1950-02-24
Abstract: 671,574. Measuring rate of fluid flow. STANDARD OIL DEVELOPMENT CO. Feb. 24, 1950 [April 14, 1949], No. 4849/50. Class 97 (ii). For measuring the rate of flow of gas through a liquid seal drum 2, a gas inlet line 1 has its opening positioned beneath the level of liquid in the drum and is provided with a number of wires 3, 4, 5, and a gas outlet line to conduct gas from the drum from a point above the level of liquid therein. The weirs may be triangular notches or perforations adjacent the end of line 1 and may have tapering or rectangular elongations at their upper ends. The amount of depression of the liquid level adjacent the weirs is measured and is a function of the gas flow. A small diameter feed gas line 15 supplies a small constant flow of gas such as natural gas to the seal drum 2 at point 16 below the level of liquid in the drum whilst a pressure tap 18 is taken from the line 1. A differential pressure recording meter 30 then indicates the height of liquid in the drum. In a modification the auxiliary gas lines through which a small constant flow of gas is maintained pass through the line 1 and terminate at the upper and lower parts of the weirs, the differential pressure of gas in the lines being recorded by a differential recording meter. In a further modification, changes in water level are detected by changes in the capacity between condenser plates vertically positioned within the end of line 1.
Patent GB-128961-A (GB)
Title: Improvements in or relating to the Manufacture of Shell.
Inventor: HADFIELD ROBERT ABBOTT
IPC: F42B12/76
Filed: 1916-04-03
Abstract: 128,961. Hadfield, Sir R. A. April 3, 1916. Annealing.-Shells to contain high explosive are made of untempered and unhardened nickelchromium steel having an elastic limit of about 23 to 30 tons per sq. in., tensile strength about 42 to 54 tons for sq. in., and elongation about 15 to 30 per cent with a reduction of area at the break of about 34 to 58 per cent, and are heattreated by slowly heating to about 750 to 800‹ C., maintaining such temperature for several hours, and slowly cooling. Instead of heat-treating the shell, the blank from which it is made may be treated, or both the blank and the shell may be treated.
Patent GB-100243-A (GB)
Title: Improvements in Portable Lamps.
Inventor: HAILWOOD ERNEST ARTHUR
IPC: B65D5/52
Filed: 1915-01-11
Abstract: 100,243. Hailwood, E. A. Jan. 11, 1915. Addition to 18694/13. Miners' and like safety lamps. -In portable lamps having an inner glass and a combustion aperture as described in the parent Specification, the plate P in which the combustion aperture is formed, is supported by legs &c. P<5> from the burner or lamp vessel, and the inner glass G is suspended from the chim. ney B &c. by a depending rod A<3> having a spring or other hook A<4> adapted to clip and support the glass.
Patent GB-1392052-A (GB)
Title: Domestic utensils
IPC: A47J27/21
Filed: 1972-02-02
Abstract: 1392052 Kettles HOOVER Ltd 30 Jan 1973 [2 Feb 1972] 4953/72 Heading A4A A domestic utensil, e.g. a kettle, comprises a container body 10 which is closed by a cover assembly, the cover assembly having a peripheral skirt which over-lies an edge 20 of the container body, the cover assembly and body 10 being secured together by releasable securing means 62 which are accessible only from below, the edge 20 being the inclined upper wall of an annular recess extending around the upper end of the container body. As shown, the stainless steel body 10 of an electric kettle is closed by a plastics cover assembly which comprises a spout 38 with a steam guard 41, and a handle 35 on pillars 36, 37. The body 10 is formed with an annular recess 17 and an outwardly extending edge 20, the cover assembly including a ring-shaped member 50 secured between skirts 31, 32 and arranged to fit over the edge 20. The body 10 is held to the cover assembly by bolts 62 passing through apertures in the edge 20 and threaded into nuts 63 retained in recesses in the ring-shaped member 50. The joint includes a rubber seal 70.
Patent GB-815914-A (GB)
Title: Improved method of forming mats and the like, of thermoplastic material
Inventor: WARREN FREDRICK WILLIAM
IPC: B29C48/00
Filed: 1956-02-17
Abstract: 815,914. Moulding thermoplastic synthetic resin. DUNLOP RUBBER CO. Ltd. Dec. 14, 1956 [Feb. 17, 1956], No. 4957/56. Class 87(2). [Also in Groups VIII and IX] Flexible car mats and similar articles are continuously formed by extruding, as through a fish-tailed shaped die 2, a flat strip 3 of thermoplastic material and feeding it through cooled rollers 4, which impress a pattern on at least one surface thereof and which contact the strip substantially only at the nip, and cutting the strip into separate articles, e.g. on a cutting table 7. The thermoplastic material may comprise plasticized polyvinyl chloride, polyvinylidene chloride, or copolymer of vinyl chloride with another compound, e.g. vinyl acetate or vinylidene chloride, or a mixture of polyvinyl chloride and a copolymer of butadiene and acrylonitrile. Figs. 2 and 3 (not shown) illustrate patterns impressed by the rollers 4 in the manufacture of cash and pedestal mats, respectively. The rollers 4 may be treated either continuously or intermittently with a lubricant, e.g. a paste containing a polysiloxane oil, to prevent sticking of the plastic material thereto. A flexible fabric backing may be applied to the extruded plastic sheet by passing into the rollers 4 a sheet of textile material such as canvas or hessian beneath the plastic sheet.
Patent GB-221466-A (GB)
Title: Improvements in or relating to oil or fat emulsions
IPC: C09K23/00
Filed: 1924-02-27
Abstract: 221,466. nouglas-Pectin Corporation, (Assignees of Douglas, R., and Loesch, H. G.). Sept. 4, 1923, [Convention date]. Void (Published under Sect. 91 of the Act]. Emulsions, makitng ; medicines for internal use; salves.-Edible oils and fats, such as cottonseed oil, linseed oil, castor oil, mustard oil, corn oil, palm oil, olive oil, peanut oil, cocoanut oil, soya bean oil, cocoa butter, almond oil, butter fat, lard, cod-liver oil, neats-foot oil, fish oils and mineral oils, for example paraffin; oils and liquid petroleum jelly, are emulsified, for use in food products such as mayonnaise and other salad dressings, and butter substitutes and for medicinal purposes such as laxatives, lotions or salves, by means of pectin. The pectin-oil emulsions may be subjected to extremes of heat and cold without separation of the oil, and may be pasteurized in sealed containers while remaining stable. An example shows the preparation of a mayonnaise dressing.
Patent GB-681023-A (GB)
Title: Improvements in or relating to automatic level control devices for electric carrier current communication systems
Inventor: JACOBSEN BENT BULOW
IPC: H04B3/10
Filed: 1950-02-27
Abstract: 681,023. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. Feb. 27, 1950, No. 4969/50. Class 40 (iv). [Also in Group XL (c)] In a pilot-controlled gain regulation system for a carrier communication circuit, of the type in which the rectified pilot controls the output amplitude of an oscillator used to effect the gain regulation, there is provided rectified reaction for the oscillator to limit the oscillation amplitude and a bias circuit for the pilot rectifier so that it produces a rectified voltage only when the pilot amplitude exceeds a given value. In the circuit shown, the oscillator output is applied to the heater of a thermistor 9 controlling an attenuator or an equalizer in the communication circuit. The pilot is applied to terminals 1, 2, amplified by a high impedance valve 3 and passed to a rectifier circuit 4, 5 which is biased by means of a current derived from a high resistance 28. For low pilot levels the rectifier 5 is effectively short-circuited by rectifier 4, but for higher levels the current drawn by valve 3 exceeds the current flowing through resistor 28 and rectifier 4 is blocked. The rectified output is derived from a low resistance 6 and is applied to the grid of an oscillator valve 7 in series with the frequency determining circuit 15, 16 to control the oscillation output. In order to ensure that when the pilot level is low the oscillation amplitude does not rise sufficiently to burn out the thermistor, part of the output is applied to a rectifier circuit 20, 21. This circuit is biased by a potentiometer 24 so that as the pilot decreases below a certain level and the oscillator output correspondingly increases, an increasing negative voltage appears across resistor 22. At the same time the voltage across resistor 6 is decreasing and when the former voltage exceeds the latter, rectifier 23 conducts and applies a bias to the grid to limit the oscillation amplitude. The anode load of the amplifier valve 3 may be replaced by a tuned circuit or a transmission line resonant at the fundamental and a harmonic of the pilot frequency.
Patent GB-621350-A (GB)
Title: An improved vice
IPC: B25B5/10
Filed: 1947-02-20
Abstract: 621,350. Vices. GANDELL, W. R. K. Feb. 20, 1947, No. 4987. [Class 61(ii)] [Also in Group XXII] A hand vice or lathe carrier comprises two jaws b, b<SP>1</SP> maintained in parallelism for gripping the work a by means of a right-and-left or other screw g connecting the ends and by a strap c and tightening screw d. For use as a lathe carrier an additional jaw o with clamp nut n is provided for gripping the pin m of the face plate q.
Patent GB-855654-A (GB)
Title: Improvements in and relating to hotplates for electric cookers
Inventor: SIDEBOTTOM GEORGE HEATHCOTE
IPC: F24C15/10
Filed: 1956-02-17
Abstract: 855,654. Electric hotplates. ENGLISH ELECTRIC CO. Ltd. Feb. 15, 1957 [Feb. 17, 1956], No. 4996/56. Class 39(3). A plug-in hotplate for an electric cooker comprises a spirally coiled sheathed tubular element 1 having a sealed inner end 2 and an outer end 4 of circular cross-section bent downwardly to extend rotatably through a tube 5 welded to a terminal box 3. Flexible leads connect the element wire ends 16 to plug pins 13 and a clip 8 encircling the element to an earthing pin 11. A bracket 22 on the box 3 supports a removable combined drip tray and reflector 23 which is further supported by two screws on the cooker, Fig. 3 (not shown). A spider 26 carried by the reflector 23 supports the element 1. Reference has been directed by the Comptroller to Specification 646,427.
Patent GB-775847-A (GB)
Title: Circuit arrangement for magnetic two-condition devices
IPC: H03K17/80
Filed: 1955-02-21
Abstract: 775,847. Magnetic amplifiers. STANDARD TELEPHONES & CABLES, Ltd. Feb. 21, 1955 [Feb. 20, 1954], No. 5037/55. Class 40 (4). A condenser C1, Fig. 1, is connected in series with the main windings of a magnetic amplifier to provide a series resonance circuit of low impedance when the core is saturated. A second condenser C2 with Cl and the main windings provides a parallel resonance circuit of high impedance when the core is not saturated. The output of the amplifier is sufficient to operate a device X only when the cores are saturated by the control windings L11, L21. The amplifier shown in Fig. 2 is normally biased to saturation and the device X is operated. The device X is switched off when the control windings de-saturate the core. Amplifiers of the kind shown in Figs. 1 and 2 are combined in Fig 3 so that X operates as Y releases and vice versa. Two amplifiers of the kind shown in Fig. 1 may operate two devices X in sequence in response to a single control signal if the time constants of the control circuits are different. Reference has been directed by the Comptroller to Specification 729,206.
Patent GB-349117-A (GB)
Title: Improvements in apparatus for use in renewing and/or milling the valve seats of internal combustion engines
IPC: B23C3/05
Filed: 1930-02-15
Abstract: 349,117. Portable turning apparatus ; assembling force fits. BONEHAM, J., Duke Street Engineering Works, Mansfield, Nottinghamshire. Feb. 15, 1930, No. 5083. [Classes 83 (iii) and 83 (iv).] Apparatus for use in milling and/or renewing the valve seats of internal-combustion engines, comprises a base A, having a boss A<1>, and a sleeve which screws into the boss to form a bearing for a milling cutter spindle C. The lower end of the spindle extends into the valve stem guide and the milling cutter is fed against the work by screwing the sleeve, which bears against the cutter boss ; an adjustable collar J serves as a stop to limit the depth of cut. The apparatus may also be used to reseat cylinder blocks, in which case a recess is first milled and a seating ring forced into the block by means of a press piece G, Fig. 3. Reference has been directed by the Comptroller to Specification 23578/06, [Class 83, Metals, Cutting &c.].
Patent GB-765261-A (GB)
Title: Improvements in or relating to a process and apparatus for the catalytic cracking ofhydrocarbon oils
IPC: C10G11/18
Filed: 1955-02-21
Abstract: 765,261. Cracking hydrocarbon oils: catalytic apparatus. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 21, 1955 [Feb. 23, 1954], No. 5091/55. Classes 1(1) and 32 Hydrocarbon oils are catalytically cracked .with the use of a fluidized catalyst which is circulated through a reaction, zone, an adjacent stripping zone situated in - the same vessel, and a regenerator, the gases and vapours issuing from the stripping zone be- ;ing added to those which issue from the reaction zone, the fluidized, catalyst beds in the reaction zone and in the stripping ;zone being kept separate one from another by a wall which extends to above the maximum level of the catalyst bed in the reaction zone, and the catalyst being passed from the reaction zone into the stripping zone through a system including one or more risers through which it is transported in a dispersed phase by means of steam or another gaseous stripping agent and the stripped catalyst flows from the stripping zone to the regenerated through a line provided with a regulating valve. In a preferred embodiment Fig. 1, a flashed distillate boiling above 300‹C. from Middle East crude was cracked in reaction vessel 3 using a fluidized synthetic silica-alumina cracking catalyst. The fresh feed preheated to 380‹C. entered through pipe 5 together with regenerated catalyst from, the regenerator (not shown) passing a distributing grid 6. The cracked products together with the vapours issuing from the stripping zone 4 pass through a cyclone 7 and out through line, 8. A wall 2 extends above the maximum level of the catalyst in zones 3 and 4 and.catalyst is continuously withdrawn through a stand pipe 10 and up a riser 11. After stripping the catalyst 'is withdrawn through a -stand-pipe 14 fitted with a regulating valve 15 to a regenerator. In a modification (not shown) the stripping zone completely surrounds the reaction zone.