baber/WOPTO huggingface dataset:
Patent GB-639969-A (GB)
Title: Improved rotary screening drum
IPC: D21D5/06
Filed: 1948-05-06
Abstract: 639,969. Screening apparatus. SVENSKA CELLULOSA AKTIEBOLAGET., and LINDBLAD, K. R. May 6,1948, No. 12503. [Class 46] An inward-flow drum for screening, e.g. fibrous suspensions, comprises a horizontal rotary and vibratory drum supported by a pipe 7 mounted centrally within the drum and journalled elastically and rotatably outside the end walls of the drum, as on springs 15, a rotary shaft 9 unbalanced as by weights 8 being mounted within the pipe 7 so as to impart vibratory motion to the drum. As shown, the drum is supported on the pipe 7 from the middle only of the screening element 3 by two conical walls 10 issuing jointly from the screening element and converging towards the end walls of the drum. The drum may be provided with an outlet in either or both end walls and the screening element 3 may be cleaned by means of water from spraying pipes 5. The drum is rotated by an electric motor 17 through a flexible coupling 18 and the shaft 9 is rotated by an electric motor 19 through a flexible coupling 20.
Patent GB-376862-A (GB)
Title: An improved process for the recovery of ketones
Filed: 1931-04-28
Abstract: Ketones, particularly acetone and its homologues, are recovered from the products of low temperature distillation, incomplete combustion, or similar processes applied to shale or other bituminous materials, by treating the crude, oily products with concentrated sulphuric acid, diluting the refining slime so obtained with water, distilling the mixture as long as the distillate contains oil, and extracting the ketones in the water distillate by salting out.  The treatment with sulphuric acid not only causes the ketones originally present in the crude oil to pass into the acid slime, but also causes the formation of additional ketones.  The water used for diluting the sulphuric acid slime may be the water containing ketones, which is also produced in processes for treating bituminous materials of the kind referred to above.  In a modification of the process, the water distillate is not salted out, but is subjected to fractional distillation together with the water containing ketones, particularly where this has not been used for diluting the sulphuric acid slime. The crude ketones contained in the water distillate may be purified by forming bisulphite compounds, which are afterwards decomposed by alkali or mineral acid, and the ketones recovered by distillation. According to an example, a shale distillate from Estlandian Kukkersit is mixed with 92-95 per cent sulphuric acid without heating, the slime is drawn off and diluted with water obtained during the low temperature distillation of the Kukkersit, and distilled with steam, as long as any oil passes over.  The water in the receiver is mixed with salt or calcium chloride, the acetone &c. passing into the water layer.  The latter is shaken with strong bisulphate lye, and water added to dissolve any crystals formed.  The liquor containing the ketone-bisulphite double compounds is separated, neutralized with soda lye and distilled with steam.
Patent GB-929772-A (GB)
Title: Reduction gear box
IPC: F16H1/36
Filed: 1962-04-02
Abstract: 929,772. Toothed gearing. A. SOGABE. April 2, 1962 [April 3, 1961], No. 12544/62. Class 80 (1). An epicyclic reduction gear comprises a driving shaft 2, to which a sun gear 6 is secured, a driven shaft 3, to which a sun gear 15 is secured, and a planet carrier formed by discs 5 rotatably mounted on the driving shaft 2, the drive being transmitted from sun gear 6 to gear 15 through planet gears 7, 12 and 14 and the reaction being provided by planet gears 9, 11 and 111 on shafts 10 meshing planet gears 7 and fixed gears 4, 41 respectively. Planet gears 9, 12 have diameters and numbers of teeth equal to those of sun gear 6. Gear 15 has a diameter slightly larger than that of stationary gears 4, 41.
Patent GB-963899-A (GB)
Title: Process for the production of gaseous fuels from liquid hydrocarbons
IPC: C10J1/213
Filed: 1961-04-07
Abstract: Fuel gases are made from hydrocarbon stocks such as naphtha, by first separating the stock by distillation into a lower and a higher boiling fraction, mixing part of the higher boiling fraction with steam, with or without air and passing the mixture over a catalyst heated by the combustion of the remainder of the higher boiling fraction to produce a combustible gas which is then carburetted with the lower boiling fraction to give a gas of the desired calorific value.  Heat for the distillation may be obtained from the combustion of part of the higher boiling fraction.
Patent GB-811410-A (GB)
Title: Friction wheel lighter
IPC: F23Q2/08
Filed: 1957-04-17
Abstract: 811,410. Friction wheel lighters. KLUSS, E. April 17, 1957 [April 27, 1956], No. 12611/57. Class 75(3) In a friction wheel lighter having a two part casing in which a slidable casing part 3 of U-shaped cross-section covering the sparking mechanism is made of thin sheet metal and is slidable axially to the flint tube 17 along the casing part 1 containing the fuel tank 2 to expose an opening 19 in the flint tube 17 for the insertion of a flint, the longitudinal edges 3a, 3b of the slidable casing part 3 directed towards the tank casing part 1 are turned inwardly to form guide edges 4, 5 which are slidably mounted in grooves 6, 7 on the tank casing part 1 and the tank casing part 1 is firmly connected to a resilient tongue 37 having a nose 38 received in an aperture 39 in the slidable casing part 3 to lock the casing parts 1 and 3 relative to each other in their closed position, the tongue 37 is stronger than the casing parts 1 and 3 and bears resiliently on the rear portion 3e of the slidable casing part 3 and the nose 38 of the tongue is received in an aperture 39 in the rear portion 3e of the slidable casing part 3. The flint spring 29 is secured to the bottom 3c of the slidable casing part 3.
Patent GB-1073055-A (GB)
Title: Improvements in or relating to nuclear power plant
IPC: G21C1/00
Filed: 1965-03-23
Abstract: 1,073,055. Cooling reactors. BABCOCK & WILCOX Ltd. March 25, 1965 [March 25, 1964], No. 12632/65. Heading G6C. In a nuclear reactor power plant, a spheroidal pressure vessel contains both the core and vapour generating tube banks surrounding the core. A thermally insulating partition surrounds the tube bank assembly so as to permit a downward flow of primary coolant through the banks and an upward flow between the banks. Coolant pumps are mounted on the pressure vessel wall and extend through holes therein. In one embodiment the downward coolant flow from the pumps is carried in a space between the inner surface of the pressure vessel and a concentric partition spaced therefrom.
Patent GB-1307572-A (GB)
Title: Concrete finishing apparatus
IPC: E01C19/41
Filed: 1970-03-16
Abstract: 1307572 Concrete levelling apparatus H J AUSTIN 16 March 1970 [4 Aug 1969] 12644/ 70 Heading E1G Concrete-screeding apparatus comprises a propelling handle J pivoted to a power-vibrated frame carrying a central perforated pressing roller E and front and rear pivotal floats 16, 16a whose tilt is adjusted by twisting the handle J about its longitudinal axis to cause relative axial movement of two telescopic sleeve portions of the handle. The front and rear floats are adjustably interconnected by a turnbuckle link K, while the front float is adjustably linked to an adjustable-length lever assembly H which supports the handle and is rocked about a frame pivot by axial movement of the handle as it twists, such axial movement being caused by a cam slot mechanism, Figs. 2-5 (not shown) between the telescopic sleeve portions (108, 114). The handle height is determined by adjusting the length of lever assembly H. In a modification, Figs. 7-9 (not shown) the lever assembly H is replaced by a curved guide plate (Q) and the collar (162-164) through which the inner telescopic sleeve (114') slides is directly linked to the front float.
Patent GB-474685-A (GB)
Title: Improvements in or relating to automatic fire-arms
IPC: F41A5/26
Filed: 1936-05-05
Abstract: 474,685. Automatic firearms. FARQUHAR, M. G. May 5, 1936, No. 12653. [Class 119] Relates to gas-operated firearms of the kind described in Specifications 28587/07, 17211/09, 9118/10, and 127,967, [all in Class 119]. According to the invention, the firearm comprises (1) a lock or trigger mechanism as described in Specification 205,998, [Class 119], (2) a spring containing tube 17, Fig. 1, provided with a block 19 for the attachment of the bipod support or legs 18, with upstanding parts 17a for partially embracing the barrel 25, and with a projection 17b engaged by a catch 28a for securing the rear end of the tube against a cross-head 24 ; (3) a gas cylinder 29 externally screw-threaded and secured by a nut 33 situated in a gap between two blocks 31, 31a on the barrel; and (4) a pivot mounting 35 on the block 31a for the front sight 36. A spring catch 36a on the sight engages notches 31d to secure the sight in operative and folded positions. The front end of the gas cylinder has a flange formed with a notch engaged by a pin 34 to locate the cylinder in correct position. The hammer 9, Fig. 3, co-operates with an external sear 10 controlled by a cam 11a on the reciprocating member 11 which operates the bolt and constitutes the breech cover. The legs 18 are held in folded position by a strap fastener 21. Specification 434,220 also is referred to.
Patent GB-549413-A (GB)
Title: Detachable air heater for domestic furnaces
IPC: F24B7/04
Filed: 1941-09-30
Abstract: 549,413. Heating air. TSCHUPP, O. Sept. 30, 1941, No. 12655. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 24, 1942.] [Classes 64 (i) and 64 (iii)] An air-heating unit for insertion in a domestic stove 21 or in a smoke chamber in the flue 25 comprises a chamber 27 and a fan 26 for forcing air through the chamber to a horizontal outlet 29. .According to the Specification as open to inspection under Sect. 91, a fan draws or forces air through vertical tubes fixed in the stove or in the flue. This subject-matter does not appear in the Specification as accepted. Specification 520,850, [Group XII], is referred to.
Patent GB-386197-A (GB)
Title: Improvements in or relating to incandescent wire ignition plugs
IPC: F23Q7/00
Filed: 1932-05-03
Abstract: 386,197. Incandescent-wire ignition plugs. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. May 3, 1932, No. 12676. Convention date, May 29, 1931. [Class 7 (iv).] The end of the [insulated conductor c to which the wire h is attached, is eccentric to the plug axis. The axis of the wire coil may be transverse to the plug axis, the ends k of the wire being straight and tangential to the coil.
Patent GB-1212088-A (GB)
Title: Method of, and a discontinuously operating sublimation condenser for the recovery by desublimation of a reaction product from a gas-vapour mixture
IPC: B01D7/02
Filed: 1968-03-15
Abstract: 1,212,088. Surface condensers. GEA LUFTKUHLERGESELLSCHAFT HAPPEL G.m.b.H & CO. K.G. 15 March, 1968 [4 April, 1967], No. 12709/68. Heading F4S. A discontinuously operating sublimation condenser for the recovery by desublimation of a reaction product such as phthalic anhydride, maleic anhydride or naphthalene from a gasvapour mixture comprises a cylindrical vessel 1 having a gas-vapour inlet 6 and an outlet 6a for uncondensed gas and housing a rectangular assembly 16 of spaced horizontal finned tubes 17 interconnected at their ends by return bends 18. Cooling liquid enters the tube 17 via inlet headers 21 and leaves via outlet headers 21a. Alternatively, one inlet and one outlet header (25, Fig. 6, not shown) may be used. The product, which condenses on the tubes 17 in the solid state, is removed periodically by passing a heating liquid through the tubes, thus melting the product which is then drained off through an outlet 11. Vertical partitions 19 bounding the tube assembly 16 together with the end walls 3, 4 and shell 2 of the vessel 1 are provided with heating tubes 20 which are connected to headers (20a, Fig. 3) and supplied with a heating medium as required during condensing and/or melting of the product. Inlet 6 and outlets 6a, 11 are also provided with independent heating means. Several condensers are normally arranged to be operated in phase-displaced cycles to obtain a constant product output.
Patent GB-1255662-A (GB)
Title: Pipe racking and transfer assembly
Inventor: DEA HENRY J
IPC: E21B19/20
Filed: 1969-03-11
Abstract: 1,255,662. Boring earth. AUTOMATIC DRILLING MACHINES Inc. 11 March, 1969 [11 March, 1968], No. 12716/69. Heading E1F. A pipe racking and transfer assembly 27 comprises a platform having a wall 43, 45 at each end, pipe separators carried by the walls to form upstanding parallel pipe storage bins, a pipe transfer crane 37 movable transversely of the bins, vertically movable pipe hoisting means or hooks 41, 42 carried by the crane, and a vertically extendable and retractable crane rail assembly at each end of the platform. Each rail assembly comprises a bottom frame 49 fixed to the platform, a middle frame vertically movable in guides in the bottom frame by means of a cylinder, and an upper frame vertically movable in guides in the second frame and connected to the bottom frame by a chain which extends over a sprocket wheel on the second frame such that the upper frame is h@tted with respect to the middle frame when the latter is lifted with respect to the bottom frame. Crane rails 63, 69 are mounted on the upper frame and have side rails 64, 66, 71 and 72 which can be pivoted into a retracted position when the assembly is being transported. In operation the assembly 27 is positioned on one side of a transfer arm which can raise into the drilling derrick, drill pipes, lowered on to it by the crane. A second assembly can be positioned on the other side of the transfer arm. Pipes being fed into the derrick are lowered into a pipe cleaning, lubricating or testing station, before being lowered onto the transfer arm. The cranes can also transport drill pipes from a rack on one side of the assembly to the transfer arm on the other side. A hydraulic system comprises a hydraulic motor to move the crane horizontally, and move the hooks vertically, and open and close the hooks. The system includes a main pump which drives the crane and hooks at a slow speed and. an auxiliary pump which together with the main pump drives the crane and hooks at a fast speed during the middle part of the traverse of the crane and of the raising and lowering of the hooks. A detailed schematic electrical circuit is described which can automatically control the feeding of pipes to, or the withdrawal of pipes from, the transfer arm. Switches in the circuit are located through the assembly and are operated by movement of the crane and hooks.
Patent GB-961467-A (GB)
Title: Process for the production of alkali metal borohydrides
IPC: C01B6/00
Filed: 1962-04-03
Abstract: An alkali metal borohydride is produced by reaction between boron trioxide and an alkali metal hydride or a mixture of an alkali metal and hydrogen under anhydrous conditions in the presence of an alkaline earth metal halide or silicon dioxide at above 100 DEG  C. at a super-atmospheric hydrogen pressure; alternatively, a boron silicate glass prepared by fusing boron trioxide or other boron oxide with silicon dioxide may be used as starting material.  The process is performed in an autoclave at between 350 DEG  and 450 DEG  C. and under a hydrogen pressure of 4-100 atmospheres.  The examples specify sodium as the alkali metal. The sodium borohydride formed is extracted with liquid ammonia.
Patent GB-541537-A (GB)
Title: Improvements in or relating to grease gun and like couplings
IPC: F16N21/04
Filed: 1940-08-08
Abstract: 541,537. Grease gun couplings. STANLEY, F. R. Aug. 8, 1940, No. 12734. [Class 99 (i)] In a detachable coupling for a grease gun in which the flanged end of a lubricating nipple is gripped in recesses formed by undercutting a jaw A<SP>1</SP> on a fixed member A and a jaw H on a sliding member H, the member H slides on the fixed member A and is actuated by the rotation of end F of the grease gun. A screw connection E is provided between the part F and the member H. The block A is closed by a cap D which houses a spring that bears on the flange E<SP>1</SP> of a tubular spindle E screwed to the grease gun F. A seating C on which the nipple bears is carried by the block A.
Patent GB-950569-A (GB)
Title: Aqueous emulsion polymerisation of acrylic acid esters
Inventor: PENELL GERHARD
IPC: C08F18/04
Filed: 1962-04-03
Abstract: Acrylic esters, alone or in admixture with esters of unsaturated mono- and di-carboxylic acids, are polymerized in aqueous emulsion containing an emulsifying system consisting of 2-10% by weight of the monomer of one or more non-ionic surface-active substances, and 1-5% by weight of the monomer of one or more weakly cation active protective colloids.  Non-ionic surface active agents specified are polyalkylene oxides and adducts thereof with long chain alcohols or phenols.  Cation active colloids specified are polyalkyleneimine, polyacrylamide and derivatives thereof, and poly-N-vinyl pyrrolidone. The example describes the polymerization of n-butyl acrylate in an aqueous medium containing an adduct of ethylene oxide and p-nonyl phenol, poly-N-vinyl-2-pyrrolidone, sodium heptadecyl sulphonate and potassium persulphate, with incremental addition of monomer and catalyst as the reaction proceeds.
Patent GB-255400-A (GB)
Title: Improvements in or relating to the manufacture of wool felts
IPC: D04H1/08
Filed: 1926-05-19
Abstract: 255,400. Brecht, E., and Fugmann, R., (trading as Brecht & Fugmarm). Aug. 21, 1925, [Convention date]. Addition to 253,502. Felt.-The raw material described in the parent Specification is mixed with hair prior to its introduction into the blowing machine..
Patent GB-1065705-A (GB)
Title: Burner apparatus for adding heat to gas turbine exhaust
IPC: F23R3/20
Filed: 1966-03-23
Abstract: 1,065,705. Burners. JOHN ZINK CO. March 23, 1966 [June 21, 1965], No. 12883/66. Heading F4T. A burner for burning gaseous fuel in a gas turbine exhaust stream having an oxygen content of about three quarters that of air comprises a perforate frusto-conical shell 38 having mounted therein a burner tip 42 provided with discharge ports 43 diverging at an included angle of at least 20 degrees less than the included angle of the shell, the aggregate area of the perforations 39 in the shell amounting to 8 to 12% of its surface area. The shell 38 is attached to a guide tube 26 having a gas supply tube 41 and a second guide tube 27 accommodates a pilot burner head 32, a gas supply pipe 33 and a retractable electrical ignition means for the pilot.
Patent GB-1099974-A (GB)
Title: Process for the preparation of surfactants from hydroxylated organic compounds, fatty acid esters and alkylene oxides
Inventor: NOBILE LUCIANO
IPC: C07H15/08
Filed: 1966-03-23
Abstract: Detergent compositions contain as the active ingredients a compound formed by reacting one of more alkylene oxides (2-4 C), one or more fatty acids (6-30 C) esterified with one or more aliphatic mono- or polyhydric alcohols (1-18 C), and one or more aliphatic or cycloaliphatic mono- or polyhydric alcohols containing nitrile groups, cyanoethyl ethers of polyhydric alcohols (containing no more than 4 cyanoethyl groups), hydroxylated aliphatic amines and hydroxylated aliphatic amides (1-18 C), in the presence of an alkaline catalyst at from 70 DEG  to 200 DEG  C. and from 1 to 50 atmoPspheres pressure.  The products are soluble in water and organic solvents such as acetone, methanol, ethanol chloroform, carbon tetrachloride, dimethylformamide and benzene and are compatible with detergent additives such as phosphates, silicates, borates, carbonates, sulphates, alkaline chlorides and sodium carboxymethylcellulose.ALSO:Surface active substances are prepared by reacting simultaneously one or more aliphatic or cyclo-aliphatic mono- or poly-hydric alcohols containing nitrile groups, cyanoethyl ethers of polyhydric alcohols containing no more than four cyanoethyl groups, hydroxylated aliphatic amines and hydroxylated aliphatic amides with 1-18 C atoms, one or more fatty acids (6-30 C) esterified with one or more aliphatic mono- or polyhydric alcohols (1-18 C), and one or more alkylene oxides (2-4 C) in the presence of an alkaline catalyst at 70-200 DEG  C. and at a pressure of from 1-50 atmospheres.  Sucrose cyanoethyl ethers, triethanolamines and diethanolamines of fatty acids, are mentioned and the triglycerides of fatty acids (10-20 C) and mono-, di-, and tri-stearin, palmitin, methyl stearate and palmitate may be the ester component. Examples describe the reaction of sucrose b -cyanoethyl-ether with tallow and ethylene oxide; triethanolamine with tallow and ethylene oxide; tallow, oleic acid N,N-bis(b -hydroxyethyl)amide and ethylene oxide; and tallow, triethanolamine, sucrose b -cyanoethyl-ether and ethylene oxide.
Patent GB-511383-A (GB)
Title: Improvements in and relating to thermally-actuated electrical cut-outs
IPC: H01H73/34
Filed: 1938-04-30
Abstract: 511,383. Thermal switches. LINDAHL, H. W. April 30, 1938, No. 12921. Convention date, May 1, 1937. [Class 38 (v)] A thermal cut-out for electrically heated utensils such as electric irons, comprises a housing 1 provided with sockets 2 for engagement with plugs on the utensils, the sockets being electrically connected with plug contacts 4 for engagement with socket contacts 5 on a member 6 for connection to the supply. The member 6 carries a stud 11 having a pin 10 for engagement with a hook 9 on a member 8 which is pivoted on member 1 and is held in the engaging position by an extension 14a engaging a bi-metallic strip 15. On overheating, the strip 15 bends to disengage extension 14a thus releasing pin 10 and allowing the connector 6 to be forced off by a compression spring 13. The bi-metal strip is in thermal connection with a metal strip (not shown) mounted on the outside of housing 1 and arranged to be in thermal connection with the utensil when the member 1 is in position.
Patent GB-514220-A (GB)
Title: Improvements in or relating to the manufacture of threading-tips for boot and shoe laces
IPC: A43D98/00
Filed: 1938-04-30
Abstract: 514,220. Moulding shoe-lace tips. FAIRE BROS. & CO., Ltd. (Ney, A., and Markus, E.). April 30, 1938, No. 12968. [Class 87 (ii)] [Also in Groups VII and IV] A mechanism for the production of threading- tips from thermohardening synthetic resins comprises a lace carrier which grips and spaces apart a plurality of lace lengths side by side, a press to be engaged with portions of the lace length to which the tip material has been applied and means to move the lace carrier periodically to bring those portions of the laces that have received the tip material to a position within the press. As shown, the laces 39 are held by pairs of gripping-arms 21, 22 mounted adjustably on a rotary carrier 18. The arms engage a fixed cam 25 and are spring-operated so that as the carrier rotates the grips are opened to receive the laces from a guide roller 33. The carrier is rotated intermittently and while the laces are stationary a spraying device is operated to coat one portion while a portion previously coated is pressed between fixed and moving blocks 36, 37. A knife 41 on the movable block severs the pressed portion.
Patent GB-234804-A (GB)
Title: Running gear for a locomotive with four driving axles
IPC: B61C5/00
Filed: 1925-05-18
Abstract: 234,804. Etablissements Baudet, Donon, et Roussel. May 27, 1924, [Convention date]. Driving bogie-wheels and radiating axles.-In locomotives having four driving axles the two axles 8, 9 at each end are mounted in a truck frame 13 pivoted to the main frame 11 on an axis 12 midway between two universal joints 6, 7 in the longitudinal shaft 5 driving the axles. Half the locomotive only is shown, an engine 2 at each end driving the common shaft 5 through change-speed gearing in a casing 4. The shaft 5 drives the axle 8, and the axles 8, 9 are coupled by chains 10 or coupling-rod gear. Specification 232,944 is referred to.