baber/WOPTO huggingface dataset:
Patent GB-207791-A (GB)
Title: A process of producing transparent, hard, insoluble and infusible products of condensation from phenols and aldehydes
IPC: C08G8/00
Filed: 1923-10-10
Abstract: Transparent, infusible, insoluble condensation products are produced by combining phenols and aldehydes in aqueous solution in presence of caustic or carbonated alkalis, adding to the dehydrated initial condensation products alkali metal salts of aromatic carboxylic acids or the acids themselves for the purpose of forming such salts and hardening.  Cyclic hydrocarbons, mono- or polyhydric alcohols, abietic acid, natural resin such as pine resin or other transparent fillers may be incorporated with the products before hardening.  In examples, phenol and formaldehyde are condensed in presence of sodium carbonate, water expelled, benzoic acid or a mixture of sodium benzoate and sodium salicylate is added, and the residue hardened. Specifications 3496/11, 3498/11, 110,041, and 159,461 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the use of phenols and aldehydes in aqueous solution or to the addition of the carboxylic acids in limited quantity so as to form salts.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1510275-A (GB)
Title: Removal of sulphur oxides from waste gas
IPC: B01D53/50
Filed: 1976-06-18
Abstract: 1510275 Removal of sulphur oxides from waste gases PULLMAN Inc 18 June 1976 [22 Sept 1975] 25305/76 Heading C1A A waste gas containing sulphur oxides is contacted with a first aqueous medium to precipitate CaSO 3 , at least part of which is then oxidized by an O 2 -containing gas to CaSO 4  in a second aqueous medium containing at least 3 wt. per cent MgSO 4 . The first aqueous medium may be a scrubbing solution containing Ca(OH) 2  and/or CaCO 3 , in a "double alkali" system, in which case precipitated alkali metal sulphite is reacted with Ca(OH) 2  or CaCO 3  to form CaSO 3 . The second aqueous medium is a slurry taken from the scrubber loop. The MgSO 4  may be added to the scrubbing solution, in which case the second aqueous medium is a minor portion of the first. The magnesium may be added as a compound convertible to MgSO 4  by reaction with SO 2 , and O 2 , in the waste gas. The second aqueous medium may bepH 5-8, and the oxidant may be air at 10-100 p.s.i.g., O 2 -depleted air being recycled to the scrubber.
Patent GB-264561-A (GB)
Title: Improvements in the manufacture and production of vat colouring matters of the anthraquinone series
IPC: C09B1/42
Filed: 1925-10-10
Abstract: 264,561. Johnson, J. Y., (Badische Anilin & Soda Fabrik). Oct, 10, 1925. Grant of Patent refused. Benzoyl-a-aminoanthraquinones substituted in the m-position of the benzoyl group are prepared either by boiling an a-aminoanthraquinone with a m-substituted benzoyl chloride or benzoic anhydride, or by heating a mixture of the aminoanthraquinone and m-substituted benzoic acid in the presence of a condensing agent such as thionyl chloride, phosphorus pentachloride, or zinc chloride. The m-substituent must be a difficulty attackable atom or group such as an alkyl group, or an etherified hydroxy or mercapto group, and must not be a free hydroxy or amino group, a, nitro group, or a cyano group. According to examples 1 : 4-diaminoanthraquinone is condensed with m-methaxybenzoyl chloride or m-toluic acid chloride; 1: 5-diaminoanthraquinone, 1 : 5-diamino-4-oxy-or methoxy-anthraquinone, 1-methoxy-4-aminoanthraquinone, and diaminoanthrarufin are condensed with mmethoxybenzoyl chloride; 1-aminoanthraquinone (2 mols.) is condensed with isophthalic acid (1 mol.) in presence of thionyl chloride and trichlorbenzene. A table is also given showing the properties of the products from the following pairs of components :-m-toluic acid, or m-benzoylaminobenzoic acid, or 1-thiophenolmethylether- 3-carboxylic acid (2 mols.) and 1 : 5-diaminoanthraquinone (1 mol.); isophthalic acid (1 mol.) and 3-brom-1-aminoanthraquinone, 1-benzoylamino-4- or 5-aminoanthraquinone, or 1-amino- 5-methoxyanthraquinone (2 mols.): 5-methoxy- 1: 3-isophthalic acid (1 mol.) and 1-aminoanthraquinone (2 mols.); diphenyl-m: m<1>-dicarboxylic acid (1 mol.) and 1-aminoanthraquinone, 3-brom-1-aminoanthraquinone, or 1- benzoylamino-4 or 5-aminoanthraquinone (2 mols.); trimesic acid (1 mol.) and 1-aminoanthraquinone or 1-amino-5-methoxyanthraquinone (3 mols.). The products dye cotton from the vat in fast yellow to red shades. 1: 5-Diamino-4-methyoxyanthraquinone is obtained by saponifying 1: 5-dibenzoylamino-4- hydroxyanthraquinone (Specification 4608/11) and methylating the product. 1-Amino-5-methoxyanthraquinone is obtained from sodium methylate and 1-amino-5-chloranthraquinone. 5-Methoxy-1: 3-isophthalic acid is obtained by methylating 5-hydroxyisophthalic acid. Reference has been directed by the Comptroller to Specifications 27098/08 and 2702/09.
Patent GB-518626-A (GB)
Title: Improvements in or relating to aeronautical propeller blades and methods of locating the pitch axis of variable-pitch propeller blades
IPC: B64C11/18
Filed: 1938-08-29
Abstract: 518,626. Screw propellers. TENNANT, W. J. (Aviation Patents, Inc.). Aug. 29, 1938, No. 25325. Drawings to Specification. [Class 114] Screw propeller blades intended to be mounted for pitch adjustment are arranged so that the blade axis lies within the confines of the blade throughout the major length and the centre of gravity of the blade is located toward the leading edge of the blade from the blade axis whilst the centre of pressure of each blade section is closer to the leading edge than the centre of gravity, whereby there is 'substantial balance between the centrifugal and aerodynamic moments about the blade axis. The centre of pressure is selected so that the net blade torque at the extreme limits of the normal range of operation will be in opposite directions, and also the aerodynamic movement exceeds the centrifugal moment under take off conditions, whilst the reverse occurs at maximum flight conditions. At the time when the centrifugal moment equals the aerodynamic moment for a selected flight condition, the centrifugal, moment predominates in an inner radial zone of the blade whilst aerodynamic moment predominates in an outer zone and the two moments are locally equal at the junction of the two zones.
Patent GB-877670-A (GB)
Title: Process for the production of modified melamine resins
IPC: C08L77/00
Filed: 1959-07-24
Abstract: Melamine and formaldehyde or a water-soluble condensate thereof are condensed with a water-soluble polyamide containing free amino groups, and/or with a condensation product from such a polyamide and urea, to form a hardenable product with greater impact strength and flexibility than usual melamine-formaldehyde resins. The formaldehyde may be replaced by substances splitting off p  formaldehyde, e.g. paraformaldehyde.  Suitable polyamides are prepared by reacting, if desired in presence of alkaline catalysts, excess of tri- or higher polyamines, e.g. diethylenetriamine or triethylenetetramine with an acid, or its ester, anhydride or acid chloride, e.g. adipic, sebacic, phthalic, terephthalic, trimesic or endo-methylene tetrahydrophthalic acid. Residual free polyamine may be removed or left to condense in with the resin.  If desired after removal of free polyamine the polyamide may be further self-condensed to a higher molecular weight with splitting off of polyamine.  This further condensation may be continued so long as the polyamide is still water-soluble. Suitable polyamides may also be prepared by reaction of tri- or polyamines with lactams, e.g. caprolactam, or by reacting a polyamide having no free amino groups with a polyamine.  The polyamide containing free amino groups may, if desired be reacted with urea to form ureido groups before use for modifying the melamine resins.  The urea may be equivalent to the free amino groups or less than that, thus leaving free amino groups, or more in which case the excess is left to combine with the melamine formaldehyde resin.  The melamine-amide-for-maldehyde condensates may be stored as aqueous solutions, if desired with addition of a stabilizer such as borax or urotropine or may be dried to a water-soluble powder.  In examples melamineformaldehyde condensates are prepared with the modifying agents which were condensates of the following ingredients:-(4), (5) diethylenetriamine and diethyl adipate; (6) triethylenetetramine and diethyl sebacate; (7) diethylene triamine and di-ethyl phthalate; (8) diethylene triamine and adipic acid; (9) dipropylene triamine and sebacic acid; (10) triethylenetetramine and phthalic anhydride; (13), (14) diethylene triamine, diethyl adipate and urea; (15) diethylene triamine, adipic acid and urea; (16) dipropylene triamine, sebacic acid and excess urea.  Example (17) uses a mixture of the modifiers of Examples (8) and (15). Some examples describe the use of the condensates for impregnating paper for formation of laminates. Example 13 describes addition of sawdust and zinc stearate to a dried condensate powder to make a moulding powder.
Patent GB-723392-A (GB)
Title: Improvements in gas turbine or like blades
IPC: F01D5/18
Filed: 1952-10-10
Abstract: 723,392. Elastic-fluid turbines. GENERAL MOTORS CORPORATION. Oct. 10, 1952 [Oct. 10, 1951], No. 25421/52. Class 110 (3). .[Also in Group XXII] A turbine blade comprises an outer metallic portion of aerofoil section, an inner liner conforming to said section and at least one radiating fin which is in the form of a sheet-metal strip 21 extending longitudinally of the blade and bonded, as by welding or brazing, to opposed walls of the liner so as to divide the interior thereof into a plurality of longitudinal channels for the passage of coolant fluid. The corrugated or zigzag strip shown may be replaced by a number of plates as in Fig. 4 (not shown). The liner is formed from a sheet or a tube and the body of the blade is cast therearound; the walls 12; 13 of the blade tapering towards its tip. Specification 723,394 is referred to.
Patent GB-790939-A (GB)
Title: Improvements relating to a device for controlling a pick-up arm
Inventor: YORK HORACE LEWIS
IPC: G11B3/08
Filed: 1955-09-05
Abstract: 790,939. Supporting gramophone pick-ups. CAPE ELECTROPHONICS, Ltd. Sept. 5, 1956 [Sept. 5, 1955], No. 25459/55. Class 40 (2). A device for bringing a pick-up into or out of engagement with a record comprises a pedestal 1 adapted to be mounted on the motor board 3, a member 7 slidable in the pedestal, a pick-up arm rest 6 carried by the member 7, and manually operable means for moving the, member 7 relative to the pedestal. A cylinder 9 rotatable by a lever 15 has an eccentric pin 12 engaging a slot in a sleeve 5 in which the member 7 is adjustably fixed. In a modification the sleeve is replaced by a cylindrical block and the rest is adjustably fixed to the member.
Patent GB-349086-A (GB)
Title: Improvements in winding and reeling carriers and spindles particularly for photographic films and the like
IPC: G03B21/32
Filed: 1929-11-21
Abstract: 349,086. Spools. COMMUNITY SERVICE, Ltd., 1, Montague Street, Russell Square, London.-(Foster, W. D. ; Seven Chimneys, Washington, New Jersey, U.S.A.) Nov. 21, 1929, No. 25518. [Class 100 (i).] A spool for light ribbons or threads more particularlv for photographic films has side plates 34, 35, Fig. 4, having openings 38, 39 for engagement with an inner non-circular part 30, Fig. 1, of a spindle ; and an axially movable disc 37 within the hub 33 provided with a hole 40 for engagement by the outer part 31 of the spindle whereby the spindle may be centred with either plate 34, 35 facing inwards. The part 31 and corresponding hole 40 may be either circular or non-circular. Relative rotation between the disc 37 and hub 33 may be prevented by forming a notch 42, Fig. 6, in the disc to engage a depression 43 on the hub which may also serve as a means for attaching a film.
Patent GB-601341-A (GB)
Title: Improvements in domestic baths
IPC: A47K3/00
Filed: 1945-10-02
Abstract: 601,341. Baths. TORRES, H. D. Oct. 2, 1945, No. 25526. [Class 26] Into a perforated pipe in the form of a frame 8, pivoted on brackets 9 affixed to a wall 10, water, controlled by a two-way valve 11 and tap 12, is supplied to wash down the sides of a bath 2 after use. According to the Provisional Specification a single bracket is employed.
Patent GB-678296-A (GB)
Title: Improvements in apparatus for delivering tablets or the like singly from pocket containers
IPC: A24F15/16
Filed: 1949-10-05
Abstract: 678,296. Dispensing containers for tablets and the like. HAAS, E. Oct. 5,1949 [Oct. 28, 1948], No. 25642/49. Class 1 A pocket container for dispensing tablets and the like has a hinged lid 5 provided with an ejector finger 8, which when the lid is opened, projects the uppermost tablet 2<SP>1</SP> forwardly through a lateral delivery aperture so that it may be gripped by the user, the finger having a convex curved surface 8<SP>1</SP> for restraining the next tablet against upward movement until the lid is closed. As shown, the container has an upward extension 3 carrying a bridge member 9 against which the tablets are urged by a spring and which, in conjunction with the front edges of the two sides of the extension 3 and the top front edge of the casing defines the lateral delivery aperture. The lid 5, which carries a thumb piece 7 rigid with finger 8, is mounted on a pivot pin 4 supported by the extension 3 and is urged towards closed position by a spring 6. The Specification as open to inspection under Sect. 91, also describes a container comprising two telescopically arranged parts and a container having a hinged, spring controlled lid which, after a pivotal opening movement, is drawn down the outside of the container by a manually operable element that is slidable on the container, the lid having inside it a cam surface which, during the downward sliding movement, enters a slot in the casing and displaces the uppermost tablet. A further container has two outer lids of unequal length. The slidable element may have an upward extension at the front to close the lateral aperture. This subjectmatter does not appear in the Specification as accepted.
Patent GB-727405-A (GB)
Title: Improvements in and relating to pyrazolidines
IPC: C07D231/36
Filed: 1951-11-02
Abstract: The invention comprises 3 : 5-dioxopyrazolidines of the general formula <FORM:0727405/IV (b)/1> (or tautomeric forms thereof), wherein R represents a hydrocarbon radical containing an O or S linkage, which linkage is separated from the pyrazolidine nucleus by an aliphatic chain of at least one and at most four carbon atoms, and their salts, and the manufacture thereof by processes analogous to those described in Specification 707,611.  The chain length of the radical R is preferably not more than 10 members, including the hetero atom and counting a phenyl radical as 4 chain members.  The products possess analgesic, antipyretic and antiphlogistic properties.  In examples: (1) b -methylmercaptoethylmalonic ester and hydrazobenzene are heated in a solution of sodium ethoxide in ethanol to produce 1 : 2-diphenyl-3 : 5-dioxo-4-(b -methylmercaptoethyl)-pyrazolidine; (2) b -methoxyethylmalonic ester similarly yields 1 : 2-diphenyl-3 : 5-dioxo-4-(b -methoxyethyl)-pyrazolidine; (3) 1 : 2-diphenyl-3 : 5-dioxopyrazolidine is heated with ethoxyacetaldehyde in alcohol in the presence of Raney nickel and under 20 atmospheres pressure of hydrogen to form 1 : 2-diphenyl-3 : 5-dioxo-4-ethoxyethylpyrazolidine.  Tables give the properties of additional products in which R is b -n- or -iso-propyl-, -phenyl-, -p-tolyl-, -o : p-dimethylphenyl-, -p-chlorophenyl- or -ethylmercaptoethyl, g  - phenylmercaptopropyl, d  - phenylmercaptobutyl or b -n-propoxy-, -n-butoxy- or -phenoxy-ethyl. Reference has been directed by the Comptroller to Specification 646,597.ALSO:Aqueous solutions of water-soluble salts (especially those with alkali metals or with organic bases such as ethylene - diamine, diethylamine or triethanolamine) of 1 : 2-diphenyl- 3 : 5-dioxopyrazolidines of the general formula <FORM:0727405/VI/1> (wherein R represents a hydrocarbon radical containing an O or S linkage, which linkage is separated from the pyrazolidine nucleus by an aliphatic chain of at least one and at most four carbon atoms) may be used as solubility promoters for medicaments difficulty soluble in water, e.g. 1-phenyl-2 : 3-dimethyl-4-dimethylaminopyrazolone. Reference has been directed by the Comptroller to Specification 646,597, [Group IV (b)].
Patent GB-1510154-A (GB)
Title: Audio control console systems
IPC: H04S7/00
Filed: 1975-06-17
Abstract: 1510154 Audio control console SIEMENS AG 17 June 1975 [20 June 1974] 25674/75 Heading H4J In an audio control console particularly for the production of sound recordings a multiplicity of audio channels are provided together with signal modifying units, for providing filtering, reverberation &c., with centrally controlled switching which can be operated to allow a recording to be made without the use of the signal modifying units, while monitoring a mixed and modified sound, and will also enable the performance modifying elements to be switched into circuit between a tape replay unit and a re-recorder. As described the console handles the signals from n microphones Ml to Mn which are fed via respective microphone amplifiers V 11 to Vn1 and faders R1 to Rn to centrally controlled switches ZS 1 to ZSn. With the switch as shown the microphone output is modified, e.g. by adding reverberation, in units KG 1 to KGn and can then be mixed on the lines L1 to L5, with the mixed signals monitored via amplifiers V1 to V5 and loud-speakers El and E2. Operation of switches ZS I to ZSn into its other position the microphone outputs are fed directly from the faders to an output II I to IIn connected to the respective tracks of a multi-track recorder, while monitoring the sound being recorded via switch VN1 to VNn, the modifying elements KG1 to KGn and the loudspeakers E1 and E2. Alternatively by operation of the switch V/N 1 to V/Nn signals from the replay heads of the multi track recorder, connected at I1 to In are fed through the modifying elements KG I to KGn and mixing switches to the lines L 1 to L5 and monitor loud-speakers. The switches can be relays or semi-conductor devices operated from a central location.
Patent GB-289704-A (GB)
Title: Improvements in and relating to bow collectors for overhead wire systems of electric traction
IPC: B60L5/16
Filed: 1927-09-29
Abstract: 289,704. Brecknell, Munro, &, Rogers, Ltd., and Willis, A. M. Sept. 29, 1927. Bow collectors; supporting arrangements for collectors.-Bows of the pull-over type have means to mainthe collector-pan a horizontal during movement of the bow frame f from the vertical. The pan a is pivoted on a rod carried bv the frame f and carries side brackets g having eyes h in line with the pivot rod. The brackets are connected bv cables to eyes m on the base n in line with the pivot o of the frame f. The erecting - springs s are coupled to chains u, v attached to cams w fixed to the base, as in Specification 278,809.
Patent GB-1206507-A (GB)
Title: Double acting fluid pump
IPC: F04B53/10
Filed: 1968-05-29
Abstract: 1,206,507. Valves. STIGA-VERKEN A.B. 29 May, 1968 [29 May, 1967], No. 25750/68. Heading F2V. [Also in Division F1] In a double-acting fluid pump, having two chambers 9, 10, the two chambers communicate with the interior of a hollow piston-rod 6 via passages 11 in the piston head. In one embodiment, Fig. 1, the piston head 2 is smaller in diameter than the cylinder 1 and has a groove 12 containing a sealing ring 13 which is moved up or down to connect the chambers alternately to the interior of the piston-rod. In a second embodiment, Fig. 3 (not shown), the sealing ring is replaced by a valve (23) in the shape of a ring with a U-shaped cross-section, the sides of which may be deflected by pressure in either chamber. If the pressure in the piston exceeds that in the chamber, the valve will seal off both chambers. In another embodiment, Fig. 2, a thimble-shaped valve 22 is provided made of rubber with the walls thinner at the open end so that they can be pushed inwards by fluid pressure. The valve has a button at the top by which it is supported at the top of a hollow piston 6.
Patent GB-322525-A (GB)
Title: Vehicle toy apparatus
IPC: A63H18/12
Filed: 1928-09-07
Abstract: 322,525. Mapson, R. L., and Greer, R. L. Sept. 7, 1928. Mechanical toys; rails.-A toy vehicle having mechanism adapted to steer the vehicle in a path substantially parallel to a guiding abutment, is provided with electrical propelling means. As shown, a toy vehicle propelled by a motor M through a worm gear 26, is steered by an arm E that projects from one of the stub axles 28 and bears at its free end against an abutment A. In a modification the arm E is pivoted to the running board of the vehicle and is connected to the stub axle by a link. The abutment comprises two rails 15, 16 of conducting material that are secured to insulating posts 17 by countersunk nails 18. Current from a battery is fed to the motor through rail 15 and wire 40, and returns through the chassis, the arm E and rail 16.
Patent GB-1038768-A (GB)
Title: Improvements in conveying ducts for pneumatic conveying systems
Inventor: ROBINS WILLIAM HENRY MALCOLM
IPC: B65G53/52
Filed: 1962-07-05
Abstract: 1,038,768. Pneumatic conveyers. HENRY SIMON Ltd. July 4, 1963 [July 5, 1962], No. 25759/62. Heading B8A. In a conveying duct system the ducts 2, 4, 6, Fig. 1 are interconnected through pressure tight vessels 5, 9 at points of directional change, the upstream ducts delivering material to the upper part of each vessel and the downstream ducts receiving material from the lower part of each vessel. Additional conveying air may be injected upwardly into the lower portion of the vessel 9 and a drain plug 12 may be provided for releasing material.
Patent GB-405579-A (GB)
Title: Improvements in and connected with supporting devices for tradesmen's cycles
IPC: B62H1/02
Filed: 1933-09-18
Abstract: 405,579. Cycle supports. WARRICK, J. H., Monarch Works, Caversham Road, Reading. Sept. 18, 1933, No. 25816. [Class 136 (i).] A supporting - device for tradesmen's cycles, of the type comprising a pair of supporting-legs pivotally carried on a spindle supported from the cycle frame in such a way that, on the legs being swung down from their inoperative position, they are spread outwards through their pivoted ends working against cam surfaces, is mounted and constructed in the following manner, the arrangement being particularly suitable for carrier cycles of the kind having a small front steering wheel. Secured by a collar 5 to the front down tube 2 of the cycle frame is a depending tubular arm 7 fitted with a T-piece 8 carrying a tubular arm 9, in which is rotatably mounted a spindle 11 having forked ends 14, Fig. 3, for the pivotal attachment by pins 16 of lugs 15 on the upper ends of supporting-legs 12 adapted to engage the ground. As the legs 12 are swung down on the spindle 11 to the operative position, they are spread apart by the engagement of the inner edges of the lugs 15 with inclined or cam-shaped flanges 10a on heads 10 on the ends of the arm 9, and are held in the supporting position by steps 22 on the cam flanges, the resilience of the connecting parts allowing the rotation against the cams.
Patent GB-1472772-A (GB)
Title: Electrical musical instruments of the keyboard type
IPC: G10H1/02
Filed: 1974-06-11
Abstract: 1472772 Electronic musical instruments HAMMOND CORP 11 June 1974 [11 June 1973] 25842/74 Heading G5J In an electrical keyboard instrument a monostable multivibrator unit 10 is triggered to give a single output pulse when a keyer is operated by a key 11 independent of how many keys are already activated. The triggering voltage is developed across a sensing element 21 which may be a resistor (as shown), inductor or diode. The pulse duration is limited by the saturation times of the transistors 14, 16 and is characteristically 10 ms., within which period operation of a key produces no further pulse. Transistors may be NPN or, with appropriate polarity reversals, PNP type. The pulses may activate a separate rhythm voice generator (not shown).