baber/WOPTO huggingface dataset:
Patent GB-186200-A (GB)
Title: Improvements in detachable rims for vehicle wheels
IPC: B60B25/20
Filed: 1921-07-15
Abstract: 186,200. Grey, A. G. de, and Auto Sundries, Ltd. July 15, 1921. Detachable.rim attachments to wheels; tyre attachments to rims. - A detachable rim comprising flanged members 2, 3, detachably connected by studs 18 and socket-plates 19, is secured on the permanent rim 21 by studs 6 which alternate with the studs 18. Spaced seating-blocks 4, 5 which alternate round the wheel, are secured respectively to the rims 21, 2. For forcing the detachable rim on to or from the wheel, a bolt 9. having a shoulder 20 and carrying a flanged nut 16, engages a threaded sleeve 11 in the felloe. In mounting the rim, the nut 16 presses on the flange portion 15, and in dismounting, the shoulder 20 engages the flange portion 14.
Patent GB-1379867-A (GB)
Title: Triamcinolone derivative
IPC: C07J/
Filed: 1973-04-19
Abstract: 1379867 Triamcinolone derivative SIGMATAU INDUSTRIE FARMACEUTICHE RIUNITE SpA 19 April 1973 [28 April 1972] 19162/73 Heading C2U The novel steroid of the formula is prepared by reacting triamcinolone with p-dimethylaminobenzaldehyde and then esterifying the resulting cyclic acetal by reaction with a chloride, imidazolide or mixed anhydride of #-benzoylaminoisobutyric acid. The novel steroid has antiphlogistic activity and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-744933-A (GB)
Title: Polymeric materials
Inventor: CRICK ROBERT GEORGE DENTON
IPC: C08F220/44
Filed: 1953-07-10
Abstract: Acrylonitrile is copolymerized with an ether or ester of meta-isopropenyl phenol with or without another ethylenically unsaturated monomer, such as butadiene, vinyl acetate, styrene, methyl methacrylate, methacrylonitrile, acrylamide, vinyl and vinylidene chlorides, dialkyl maleates and fumarates, and vinyl pyridine.  Specified ethers and esters of metaisopropenyl phenol are the methyl, ethyl, propyl, butyl, pentyl, benzyl, alpha-methyl benzyl, phenyl, toluyl, and glycidyl ethers, and esters with acetic, propionic, butyric, benzoic, and toluic acids. Copolymerization may be carried out in solution in a solvent such as benzene, or in aqueous media with or without emulsifiers, the reaction being assisted by heat, light, and catalysts such as a mixture of ammonium persulphate and sodium metabisulphite, or azobis-isobutyronitrile. Copolymers containing at least 85 per cent of acrylonitrile units may be used in the production of films and fibres of good dye-susceptibility; alternatively copolymers of lower acrylonitrile content may be blended with polyacrylonitrile in solution in dimethyl formamide.  The copolymers may be hydrolysed to yield polymeric materials containing free phenolic hydroxyl groups, such hydrolysed copolymers having good dye-susceptibility.  The hydrolysed copolymers may be coupled with diazonium salts to yield inherently dyed products, e.g. a copolymer of acrylonitrile and meta - isopropenyl phenyl acetate in the form of a film or fibres is hydrolysed with sodium hydroxide and then coupled with diazo - 1 - naphthylamine sodium - 4 - sulphonate.ALSO:Meta-isopropenyl phenyl methyl ether is prepared by reacting an aqueous solution of sodium meta-isopropenyl phenate with dimethyl sulphate.  Meta-isopropenylphenyl acetate is prepared by esterifying meta-hydroxyphenyl-dimethyl carbinol with acetic anhydride to make the diacetate, which on heating loses acetic acid to yield the desired ester.
Patent GB-498823-A (GB)
Title: Improvements in or relating to playing darts
IPC: F42B6/00
Filed: 1937-07-10
Abstract: 498,823. Dart flights. LANCASTER, A. S. July 10, 1937, No. 19197. [Class 132 (iii)] A dart has the flight or the tail feathers attached to a sleeve, quill or like tubular carrier adapted for application removably, e.g. to be pushed on, to the tail end of the dart. Fins or blades 6 made separately of any thin rigid material such as celluloid or sheet rubber are attached to a sleeve or quill 7 in any suitable manner such as by adhesive. In the embodiment shown, a portion 8 engages in a corresponding slit in the sleeve 7 which is of uniform diameter and is pushed on to the tapered tail of the dart. Alternatively, the sleeve is of resilient material and the tail is of uniform but slightly greater diameter, the tip 10 being rounded to facilitate fitting. The fins may also be formed integral with the sleeve. Reference has been directed by the Comptroller to Specifications 147,359, 272,658, [both in Class 132 (iii)], 353,638, and 445,590.
Patent GB-1111981-A (GB)
Title: Improvements in flow meters
IPC: G01F1/58
Filed: 1965-05-06
Abstract: 1,111,981. Fluid-flow meters, electrical. SOC D'INSTRUMENTATION SCHLUMBERGER. March 6, 1965, No. 19213/65. Heading G1N. Relates to the elimination of short circuiting of potentials induced in a flowing liquid in the region of the pick-up electrodes of an induction type fluid-flow meter having a flow channel lined with non-magnetic metal. The meter comprises a non-magnetic pipe 10 (Fig. 2) with a stainless steel lining 16 separated therefrom by plastics insulating material 22 except where it is fixed to the pipe flanges 12, 14. Diametrically opposed pick-up electrodes 52, 56, insulated from the lining 16 by surrounds 54, 58 are disposed on a diameter perpendicular to the direction of a magnetic field produced by a permanent or electromagnetic (preferably A. C., not shown). Surrounding each electrode is a pair of concentric copper guard rings 60, 64 and 62, 66, which are brazed to the lining 16. A third electrode 68 is electrically connected to the lining to act as a reference potential point. The electrodes are connected to the inputs of differential amplifiers 70, 72 (Fig. 3) the outputs of which are connected to the guard rings. If for instance the gain of amplifier 70 is zero then the metal lining 16 constitutes an electrical connection between points in the liquid where different potentials exist. This alters the potentials particularly where the electrical conductivity of the liquid is low. If the gain is increased progressively from zero to unity currents are induced in the lining which produce potentials, in the region of the rings, identical to those which would be found if the lining was insulating. The potential of the rings will become equal to the potential of the associated electrode when the amplifier gain is unity. The outputs of the amplifiers are also connected to a mV meter to indicate the flow rate.
Patent GB-709947-A (GB)
Title: Improvements in and relating to automatic electric circuit breakers
IPC: H01H71/08
Filed: 1951-08-16
Abstract: 709,947. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 16, 1951 [Aug. 16, 1950], No. 19361/51. Class 38(5) [Also in Group XXXVI] The circuit-breaker comprises a hinged armature normally latching a tripping mechanism, a series bimetal element fixed at one end adjacent the hinge of the armature so as to extend parallel thereto, and means for coupling the bimetal and the armature so that the latter is retractable either by warping of the bimetal on a slight sustained overload, or by a heavy overload which produces a magnetic field attracting the armature directly to the bimetal itself. The armature 37 is pivoted at 38 and has (i) a catch 39 engaging the end 40 of a tripping member 21 and (ii) a hook-portion 37<SP>1</SP> around the free end of the bimetal 30 which is secured at 31 to an adjustable plate 35. On a prolonged slight overload, the bimetal 30 bends to the right, Fig 1, carrying the armature with it, thereby releasing the member 21 which pivots counter-clockwise and carries a tension spring 26 over-centre to separate contacts 17, 18 and move the handle 25 to the Fig. 4 position. A lug 19x on a member 23 secured to the handle and pivoted at 24 engages the contact lever 19, which is pivoted at 20 to member 21, to give it a positive start. With a heavy overload, the armature is attracted to release the member 21 by the magnetic field set up by the current in the bimetal itself. The breaker is reset by moving the handle to the right from the Fig. 4 position, a lug 23<SP>1</SP> on the member 23 engaging a shoulder 21<SP>1</SP> on member 21 which is moved clockwise to re-engage parts 39, 40, the contacts being reclosed when the handle is moved back to the Fig. 1 position. The contacts 17, 18 are situated in an are chute 50 leading to a vent 52. The contact 17 is connected to a clip contact 14 . arranged to engage a blade on a panel.
Patent GB-1000784-A (GB)
Title: Solid olefine polymer compositions
Inventor: BURGESS ROBIN HENRY
IPC: C08K5/13
Filed: 1961-05-30
Abstract: A polyolefin is stabilized with a composition comprising: (a) an organic phenolic compound with an ortho-substituent attached thereto by a C or N atom (1) to which is attached an O or N atom (2) linked within the molecule by a double bond, said substituent having an aromatic residue attached to (1) or (2); (b) a sulphur compound in which organic groups are linked together by at least one group (1) which is either <FORM:1000784/C3/1> wherein X and Z are O, S or NR, Y is O or S and R is H or hydrocarbon, and in which compound there is at least two S in group(s) (1) or in thiol, thioether or disulphide groups; and optionally (c) a phenolic antioxidant such as a condensate of an alkyl phenol with an unsaturated aldehyde or ketone. Preferred stabilizer components are: (a) 2-hydroxy-4-alkoxybenzophenones, aromatic esters of hydroxy aromatic acids, and 2-(21-hydroxy aryl) benzotriazoles; (b) polyesters such as alkylene glycol/thiodialkanoic acid polyesters, polyamides such as hexamethylene diisocyanate/b ,b 1 - thiodipropionic acid condensates, and polyurethanes such as condensates of hexamethylene diisocyanate and thiodiglycol; and (c) condensates of 3-Me-6-(tBu or tOctyl)-phenol with crotonaldehyde or cinnamaldehyde.  Specifications 859,777 and 951,934 are referred to.
Patent GB-256775-A (GB)
Title: The manufacture of new amino-triaryl-methanes and of azo dyestuffs derived from them
Filed: 1925-08-04
Abstract: 256,775. British Dyestuffs Corporation, Ltd., and Saunders, K. H. Aug. 4, 1925, Aminotriarylmethanes are obtained by condensing tetraalkyldiaminobenzhydrols with aminosulphones obtained by the process described in Specification 245,865. In an example, the aminosulphone obtained by reducing the condensation product of 5-sulphino-o-cresotinic acid with 4- chlor-3-nitrobenzene sulphonic acid is condensed with tetramethyldiaminobanzhydrol in sulphuric acid monohydrate. Azotriarylmethane dyes are made by diazotizing the above aminotriarylmethanes and coupling with oxyamino-, or amino-oxy compounds. The products dye animal fibres yellow to red shades; after-chroming is accompanied by the production of a triarylmethane dyestuff on the fibre, with corresponding change of shade. In an example, the aminotriarylmethane described above is diazotized and coupled with 1-phenyl-3-methyl- 5-pyrazolone; the product dyes wool yellow, changing to a bright yellowish-green, fast to milling, when chromed. If #-naphthol is used as coupling component, orange shades are obtained which become brown when chromed; ethyl-#- naphthylamine yields red shades which change to violet when chromed.
Patent GB-850187-A (GB)
Title: Production of light highly voluminous silicate or silicon dioxide
IPC: C01B33/187
Filed: 1957-06-21
Abstract: A filler for natural rubber comprises a light, highly voluminous alkaline earth metal silicate or a silicate or silica of similar properties obtained therefrom by acid treatment, the first said silicate having been prepared by reacting a natural material consisting mainly or completely of silica with an amount of alkaline earth metal hydroxide, e.g. calcium hydroxide, in aqueous suspension at elevated temperature and pressure.  (see Group III).ALSO:Natural material consisting mainly or almost completely of silica, such as sand and kieselguhr, are treated in aqueous suspension at elevated pressure and at least 150 DEG C. with an amount of alkaline earth metal hydroxide e.g. calcium hydroxide greater than the equimolar quantity based on the silica content of said material to obtain a light, highly voluminous alkaline earth metal silicate.  The liquid:solid ratio in the suspension is preferably not greater than 1:8 and the silica:alkaline earth metal hydroxide ratio is preferably 1:1.1 to 1:1.3.  In the example, a temperature of 200 DEG C. and a pressure of 18-19 at. are employed.  By treating the product with an acid or a medium with an acid reaction, voluminous acid silicates or silica are produced.
Patent GB-874939-A (GB)
Title: Improvements in or relating to apparatus employing electronic valve devices
Inventor: GRUBB ANTONY NICHOLSON
IPC: H03F1/54
Filed: 1960-06-03
Abstract: 874,939. Valve supply circuits. COMMUNICATIONS PATENTS Ltd. June 3, 1960, No. 19705/60. Class 40(6) The filament or heater current of a valve is limited to a safe valve during the warming-up period, when the filament or heater resistance is low, by means of a resistor 21 with adjustable tappings in series with the primary of the transformer 10 feeding the filament or heater. When the filament or heater becomes operative its resistance increases and the voltage across it and thus the voltage across the transformer primary rises to such a value as to energize the relay 17, contacts 19 of which close to short-circuit the limiting resistor 21. A further pair of contacts 20 prevent the application of H.T. to the valve before the filament or heater is fully operative. The working current of the filament or heater may be set by means of an adjustable resistor 25. In an alternative arrangement (Fig. 2, not shown) the relay is provided with two windings, the one in series with the transformer primary and opposing the second which is connected, in series with a resistor across the supply. In this arrangement the current in the second winding tends to close the relay, the contacts of which are held open initially by the heavy starting filament or heater current passing through the first winding. D.C. relays may alternatively be used, connected in series with dry-contact rectifiers.
Patent GB-297100-A (GB)
IPC: B61G9/10
Filed: 1928-07-07
Abstract: 297,100. National Malleable &. Steel Castings Co., (Assignees of Brooks, C. K.). Sept. 16, 1927, [Convention date]. Combined buffer and draw-gear.-In apparatus in which a wedge, member 23 forces friction shoes 25 against slightly tapered friction members, lubricating material 20 is applied to or interposed between the wedge and shoes so as to prevent them from sticking together when released. A force applied to the member 23 is resisted by springs met by the frictional resistance due to the pressure between the shoes 25 and the friction members. Graphite with a suitable binder may be let into recesses in the faces of the wedge 23 or antifriction materials such as lead may be employed. In the modification shown in Fig. 1, a plate 5 of brass or other relatively soft metal is let into the face of the wedge member 4 and is perforated to receive graphite or other lubricating material 10.
Patent GB-152161-A (GB)
Title: Improvements in torsionmeters
IPC: G01L3/10
Filed: 1919-08-12
Abstract: 152,161. Denny, Sir A., and Edgecombe, F. T. Aug. 12, 1919. Electro-magnets. - In a rotary transmission dynamometer such as is described in Specification 11174/11, [Class 37, Electricity, Measuring &c.], having a solenoid to operate the contact when taking a reading, in order to prevent the plunger from being held by friction due to centrifugal action, it is fitted with rollers A<2> bearing against the side away from the shaft.
Patent GB-314229-A (GB)
Title: Improved table golf apparatus
IPC: A63F9/16
Filed: 1928-07-09
Abstract: 314,229. Dampier, W. H. Benett-. July 9, 1928. Games of chance.-A games apparatus comprises a number of pieces in the form of spinning tops as shown, each piece bearing the name of a golf club and having a number of faces upon each of which is an indication of the result of the use of the particular club represented by that piece. Each piece may represent more than one club, in which case the faces of the piece bear indications corresponding to each of said clubs. The various pieces may be of different colours, and in playing the game the pieces are used in conjunction with an ordinary golf score card.
Patent GB-1384963-A (GB)
Title: Method of reproducing images
IPC: G03H1/26
Filed: 1972-04-28
Abstract: 1384963 Multiple image holography KONISHIROKU PHOTO INDUSTRY CO Ltd 28 April 1972 19951/72 Heading G2J Image holograms, from which three-dimensional images are to be reconstructed, are formed by (a) preparing a transparency comprising a plurality of adjacent images of a three-dimensional object in which each image represents a view of the object from a different viewpoint; (b) locating the transpiracy between a coherent light source and a lens array consisting of as many spaced lenses as there are images on the transparency whereby on illuminating the transparency through a diffusing screen each image thereon is re-imaged by a respective lens on a record medium upon which is simultaneously incident a mutually coherent reference beam thus forming on such record a composite hologram of said images. Illumination of the hologram with an incoherent reconstruction beam gives a three-dimensional image of the object. Either the reference beam used in forming the hologram or the beam employed to reconstruct it, or both, is formed by radiation from a source, or towards a focal area, of finite size and shape. The record medium is located in the focal plane of the lens array. Coloured images may be reconstructed if either superimposed colour separation holograms are formed from separate transparencies, one for each primary colour for example, or a multicolour laser is used to illuminate the transparency and the hologram is recorded as a colour positive. The object may be imaginary and each image on the transparency may be of a derived viewpoint of such object as displayed on a cathode-ray tube. The adjacent images on the transparency may be recorded either by sequentially opening a shutter in front of an appropriate lens of an array to give separate exposures or a single lens located in a mask may be moved along two co-ordinate axes each position providing a desired exposure and image.
Patent GB-617629-A (GB)
Title: Improvements in or relating to electric pianos
IPC: G10H1/057
Filed: 1946-07-04
Abstract: 617,629. Electrical musical instruments. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 4, 1946. No. 20004. Convention date, July 15, 1942, [Class 88 (ii)] In an electric piano the rate of decrease of the intensity of the note sounded by a key is controlled by the rate of discharge of a condenser through a capacitative impedance. As shown, S1 is a switch actuated by one of the keys of an electric piano, a switch such as S1 being provided for each key. In the rest position, the switch-arm engages contact 10 and condenser C1 is charged from a source of constant direct-current voltage. When the key is depressed, the arm moves over contact 11 to contact 12. While the arm is passing over contact 11, C1 is partly discharged through resistor R1 by an amount proportional to the speed of the arm, and hence to the force with which the key is struck. When the arm reaches contact 12 the residual charge on C1 is shared with C2, after which, when the key is completely depressed, the arm leaves contact 12 and remains disconnected until it again connects with contact 10 after the key has been released. Mounted on the shaft of S1 is a second switch S2, the contact 16 of which is closed only during the downward movement of the key prior to the arm of S1 reaching contact 12. The switch S2 thus short-circuits C3 immediately before C2 is charged. A network comprising the resistor R2 and the condenser C3 in series, with the latter shunted by the resistor R3, is connected in parallel with C2. Also connected across C2 is a ladder network R6, C4, R7, C5 which is in turn shunted by a high value resistor R8 from which voltages may be tapped off and applied to control the tone generators (not shown). As soon as the key has been completely depressed, the charge on C2 begins to flow away. At first C3 acts as a short-circuit to R3 and the rate of decrease of the potential across C2 depends substantially on R2 only, R8 being relatively large. Condenser C3 meanwhile charges up and subsequently acts as an insulator to direct current, the discharge current of C2 then being determined by R2 and R3 in series. The voltage across C2 decreases exponentially, at first dependent on R2 only, but as C3 charges up, the rate of decrease becomes slower as a different exponential function dependent on R2 and R3 is superimposed on the first, and eventually replaces it. The rate of decay of the voltage across C2 controls the rate of decay of the tone produced which is found to simulate that produced in a normal pianoforte. The ladder network R6, C4, R7, C5 acts as a click filter and prevents voltage impulses, which are produced when the arm of S2 reaches contact 12, from appearing across R8.
Patent GB-218136-A (GB)
Title: Improvements in or relating to web-splitting devices for typewriting machines
IPC: B41J17/00
Filed: 1923-08-07
Abstract: 218,136. Fairweather, W. C., (Underwood Typewriter Co.). Aug. 7, 1923. Web-cutting arrangements. - In w e b - manifolding arrangements employing a longitudinally folded web, and a reciprocating carrier, such as that described in Specification 23349/14, having bars for supporting carbon sheets, the bars are provided with detachable knives for severing the web along the folds. The bar 29 is provided with a detachable and adjustable knife 26, welded to a plate 27 having ears 28 embracing the bar, and a slit tongue having a projection 36 for engaging any one of a number of holes in the bar. The plate is formed with a bend 34 for bringing the knife into the plane of the bar, the bend serving also as a limiting-stop. The knives on adjacent bars are arranged at opposite ends of the bars and slant inwards to engage the folds in the web.
Patent GB-811988-A (GB)
Title: Improvements in or relating to electrical connectors and to electrical assemblies employing the same
IPC: H01R12/50
Filed: 1956-06-29
Abstract: 811,988. Two-part couplings; binding-posts. CINCH MANUFACTURING CORPORATION. June 29, 1956 [July 19, 1955], No. 20253/56. Class 38 (1). A plug and socket printed circuit connector comprises a panel 10 carrying printed wiring 11 connected to printed plug contacts 13, the corresponding socket contacts being provided by resilient clips 22 mounted on an insulating sheet 29, provided with printed conductors 30 by ears 28 passing through apertures in the sheet 29, the clips being then secured by dipsoldering. The ears 28 may also be slightly spread to mount the clip or they may be bent to lie parallel with sheet 29. Connector posts 14 for mounting circuit components on the panel 10 are secured in apertures in the panel by turning over a flange 18 and the ports are dip-soldered to the printed wiring 11.
Patent GB-385232-A (GB)
Title: Improvements in and relating to coal-dust furnaces
IPC: F23C99/00
Filed: 1932-07-19
Abstract: 385,232. Pulverulent-fuel burners. BREDTSCHNEIDER, W., 10, Mor-Ostrava, Vitkovicezelezarny, Czecho- Slovakia. July 19, 1932, No. 20418. [Class 75 (i).] In a furnace fired by a number of pulverulentfuel burners comprising fuel supply conduits 1 disposed in a common air main 5, each burner is provided with means for regulating the supplies of fuel and air independently of the other burners, and is fitted with blades 6 for imparting a gyratory motion to the air entering the mixing nozzle 2, these blades being pivoted and adjustable in position by a handwheel 7 acting through gearing 9 .. 12. The air supply to each burner is regulated by a bell-shaped damper 13 carried by a pivoted forked lever 15 and adjustable vertically by a hand-wheel 17. Specification 222,823, [Class 123 (ii), Steam generators], is referred to.