baber/WOPTO huggingface dataset:
Patent GB-588839-A (GB)
Title: Improvements in or relating to means for supporting electric heating elements and toelectric fires
IPC: F24H3/04
Filed: 1944-10-17
Abstract: 588,839. Unit air heaters. WILKINSON, G. H. Oct. 17, 1944, No. 20098. [Class 137] [Also in Groups XI and XXXVI] A unit air heater comprises a fan 20 driving air over wire resistance heaters 1 supported in zig-zags between hooks 11 in bushes 9 on semicircular plates 2, 3. Arcuate louvres 18, a plastic cover 17 and a pilot or illuminating lamp 21 are provided.
Patent GB-1278750-A (GB)
Title: Contacts for semiconductor devices
IPC: H01L21/00
Filed: 1971-04-19
Abstract: 1278750 Contacting semi-conductor devices ITT INDUSTRIES Inc 19 April 1971 [28 Jan 1970] 20172/71 Heading H1K A low resistance contact is formed on an N- type silicon surface by vapour depositing aluminium thereon, by continuing the deposition of aluminium and simultaneously vapour depositing arsenic or antimony, by continuing the deposition of arsenic or antimony alone, by continuing the deposition of arsenic or antimony in conjunction with the deposition of silver, by continuing the deposition of silver alone, and by sintering the thus formed vapour deposited contact under vacuum or in an inert (nitrogen) atmosphere. Sintering may be carried out at 750-800‹ C. for approximately ten minutes.
Patent GB-669123-A (GB)
Title: Improvements relating to printer's furniture
IPC: B41B1/14
Filed: 1949-08-03
Abstract: 669,123. Printers' composing - appliances. TITCHENER, J. B. Aug. 3, 1950 [Aug. 3, 1949], No. 20220/49. Class 100 (iii). Furniture.-A type-high furniture element is divided on a horizontal plane, the lower part 3 being used alone for taking proofs. The parts 1, 3 are joined by a dovetail tongue 2 and' groove 4. The parts may be made of type-metal in standard lengths, or produced as required, or may be made of harder metal, such as steel. In order to avoid relative sliding of the parts when in use, small removable steel pins may be driven through the part 1 into the part 3, when the parts are of type-metal. If the parts are of hard metal, countersunk screws 5 may be inserted through plain holes in the part 1 into tapped holes in the part 3.
Patent GB-696955-A (GB)
Title: An improved device for the insertion of different selected wefts in weaving machineswith pirnless weft-inserters and large stationary weft bobbins
IPC: D03D47/00
Filed: 1950-08-15
Abstract: 696,955. Looms with stationary weft supplies. DEWAS, R. Aug. 15, 1950 [Sept. 8, 1949], No. 20238/50. Class 142(ii) Different selected wefts are inserted into the shed by a number of selecting members 11, one to each kind of weft, and each of which brings a selected weft 7 into the path of a single presenting member 15 which conducts it to the opening of the shed where it is positioned by a hook 22 mcunted on the slay. Each member 11 has an end 11a actuated by a needle or pusher member of a dobby mechanism, and a forked or pig-tailed end 11b to engage the weft. The presenting member 15 is actuated by a groove 18 in a face cam 17.
Patent GB-314816-A (GB)
Title: Improvements in or relating to sound amplifiers for talking machines and loud speakers
IPC: H04R1/28
Filed: 1929-07-02
Abstract: 314,816. Karavodine, N. de. July 2, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Drawings to Specification. Horns in cases; horns, multiple arrangement of.-A horn for loud speakers or gramophones diverges from two to four times as much in one longitudinal direction as it does in another longitudinal direction at right-angles so that it responds equally to high or low notes. For example, in a horn of rectangular cross section, one pair of side walls diverges twice or three times as rapidly as the other pair. The horn is of oval or other cross-section, and may be two to five metres in length. The horn has a. number of bends, for example, ten all in the same direction. To prevent resonances, the horn may be of thin sheet metal encased in cement, plaster, or the like, or may be constructed by applying a coating of cement &c. to a wax former which is subsequently melted out. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means to improve the reproduction of records of stringed instruments whereby sound waves are also collected from that side of the diaphragm facing away from the horn. This may be done by a collecting horn leading to a second horn of the kind described above, or by constructing the casing of a talking machine with double walls partitioned to form resonating chambers with suitable outlets, or more simply, by providing openings in the cover or upper walls of the casing, the machine being used with the cover closed. To control the volume of sound emitted, each or all of the horns, resonating chambers, or the openings in the cover &c. may be provided with spring- controlled shutters actuated from a distance by a cable of the Bowden type. This subject-matter does not appear in the Specification as accepted.
Patent GB-426854-A (GB)
Title: Improvements in or relating to apparatus for applying liquids
IPC: B43M11/04
Filed: 1934-07-11
Abstract: 426,854. Gum &c. receptacles. SOJKA, F., Vaduz, Liechtenstein. July 11, 1934, No. 20336. Convention date, March 2. [Class 125 (i)] A receptacle 2 for adhesives &c. has a cover 3 formed with an aperture 4 to receive a stopper 1 which is used for applying the adhesive &c. to any desired object ; an absorbent body 7 is disposed in the liquid in the receptacle in contact with a flexible backing plate 8 which permits the passage of liquid therethrough and serves as a support for the stopper which moves the backing plate down as it is pushed into the receptacle to take up liquid from the absorbent body 7. As shown, the body 7 is formed of a porous band 6 of cotton surrounding a cube 5 of sponge rubber with absorbent cotton fibres inserted between the band and the rubber. The plate 8 is held in contact with the body 7 by the cover 3 and may be formed of fine mesh wire fabric or perforated metal. The stopper 1 carries an absorbent cap 9 which is fixed on a pin 10 secured in a bore 11 in the stopper by its slotted end. The cube 5 may be replaced by a helical spring or it may be dispensed with in which latter case the absorbent body is secured to the plate 8 which is then of resilient construction. The receptacle is filled through the aperture 4 after the removal of the stopper and an overflow tube 13 is provided so that the liquid does not extend past a certain level in the receptacle.
Patent GB-795454-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1955-06-08
Abstract: The invention comprises 3 - ethylenedioxy-11,20 - diketo - 16,17 - oxido - 21 - acyloxy-D 5-pregnenes of the general formula: <FORM:0795454/IV (b)/1> wherein R represents an acyloxy group, and the preparation thereof by reacting a 3-ethylene-dioxy - 11,20 - diketo - 21 - acyloxy - D 5,16-pregnadiene with hydrogen peroxide in the presence of an inorganic base, and by reacting an ester of 3-ethylene-dioxy-11,20-diketo-16,17-oxido - 21 - oxalyl - D 5 - pregnene with iodine in the presence of a base to produce a 3-ethylenedioxy - 11,20 - diketo - 16,17 - oxido - 21-iodo - D 5 - pregnene and reacting this compound with a salt of a carboxylic acid. The latter process may be modified in that the ester of 3 - ethylenedioxy - 11,20 - diketo - 16,17-oxido - 21 - oxalyl - D 5 - pregnene is prepared by the method claimed in Specification 795,453. In the reaction with hydrogen peroxide, the inorganic base may be an alkali metal hydroxide, carbonate or bicarbonate such as potassium hydroxide, carbonate or bicarbonate or sodium hydroxide or carbonate, the reaction solvent may be methanol, ethanol, propanol or butanol, and the reaction may be carried out at room temperature.  In the reaction with iodine in the presence of a base, it is preferable to use methanolic sodium methoxide as the base although other alcohols and alkali metal alkoxides may be used.  The salt of a carboxylic acid is preferably sodium benzoate or a salt of an alkanoic acid, e.g. sodium acetate or propionate or potassium acetate.  In the example 3 - ethylenedioxy - 11,20 - diketo - 16,17-oxido - 21 - acetoxy - D 5 - pregnene and the intermediate compound 3-ethylenedioxy-11,20-diketo - 16,17 - oxido - 21 - iodo - D 5 - pregnene are prepared.
Patent GB-864719-A (GB)
Title: Electrical insulation for high voltage conductors
IPC: H01B3/04
Filed: 1959-06-15
Abstract: 864,719. Reinforced mica paper; impregnating electrical insulation. ALLMANNA SVENSKA ELEKTRISKA A.B. June 15, 1959 [June 19, 1958], No. 20355/59. Drawings to Specification. Classes 96 and 140. [Also in Groups IX, XXXV and XXXVI] An insulating tape consisting of a self-supporting binder-free tape built up of overlapping mica flakes and glass fibre threads attached to the tape parallel to its longitudinal direction and covering only a small part of its surface, is wrapped in several layers around a high-voltage conductor or bundle of conductors, and thereafter impregnated, e.g. with a completely polymerizable resin such as an unsaturated polyester resin or an epoxy resin, to fill the voids and air spaces in the insulation. The insulation is impregnated under vacuum and subjected to pressure in a mould or otherwise before and during the curing step. The mica tape may be produced by splitting common mica by heating, forming a pulp in water, and subjecting this to a treatment similar to paper-making. In examples, the glass fibre thread is caused to adhere to the tape either by twisting it with a thread of polyethylene glycol terephthalate fibres or by coating it with a solution of a chloroprene polymer and then applying it to the tape and heating it therewith.
Patent GB-789097-A (GB)
Title: An assembly of stacked series-connected impedance units
IPC: H01T4/18
Filed: 1955-07-14
Abstract: 789,097. Capacitors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 14, 1955 (Aug. 5, 1954], No. 20371/55. Class 37. [Also in Group XXXV] An assembly of vertically-stacked series-connected impedance units such as capacitors, resistors or inductors comprises a plurality of circular discs, each as shown in Fig. 2a, mounted so as to have a common axis and each provided with one downwardly extending depression 4 and one upwardly extending depression 5, successive discs being angularly displaced from each other about the common axis through 120 degrees so that the depression 5 in each disc (except the lowermost) lies immediately above the depression 4 in the next beneath, the impedance elements of the series-connected chain being mounted in the space provided by the successive depressions. Fig. 1 shows a developed section of the assembly taken along the circle Q in Fig. 2a, successive impedance elements 1 being arranged between depressions 4 and 5. In this manner the arrangement occupies a total height considerably less than the sum of the heights of each impedance element and terminals taken from the junctions between the impedance elements are closer together than would be otherwise possible. The arrangement is stated to be of use in applications where it is desired to control the potential gradients across a plurality of units such as for example the contacts in a multiple-contact circuit breaker. Fig. 3 (not shown) illustrates an arrangement in which successive impedance elements are displaced from each other around the axis of the assembly by 90 degrees.
Patent GB-1219967-A (GB)
Title: Improvements in the processing of strip metal
Inventor: LAWSON KENNETH THOMAS
IPC: B21D1/05
Filed: 1968-04-30
Abstract: 1,219,967. Straightening; tensioning; rolling; altering physical properties. HEAD WRIGHTSON & CO. Ltd. 21 July, 1969 [30 April, 1968], No. 20450/68. Headings B3E, B3M and B3V. A method of cold processing metal strip, e.g. hot-dipped galvanized strip, comprises passing the strip through a first processing stage in which the strip is subjected to surface compression by rolling whilst under tension, passing the strip through a second processing stage in which it is stretched by the application of tension, isolating the tensions applied to the strip in the two sections by passing it through a bridle roll set intermediate the two sections and which applies forward tension to the strip in the first stage and back tension to the strip in the second stage and adjusting the tensions in the two sections so as to flatten the strip to achieve a required balance between surface hardening and stretching of the strip to eliminate the formation of Luder lines. Apparatus for carrying out the method comprises first, second and third sets of driven bridle rolls, namely 1, 2; 3, 4 and 5, 6, 7, 8 respectively (Fig. 1). Rolls 5-8 run faster than rolls 3, 4 which run faster than rolls 1, 2. A floating roll 10 is positioned in a loop of the strip between rolls 2 and 3 to bend and plastically strain the strip. The strip may pass from roll 4 and be stretched by the third set of bridle rolls 5-8 or a series of bending rolls may be interposed to bend the strip in alternate directions which decreases the tension required between rolls 4 and 5-8. In another embodiment the strip passes over a first set of driven bridle rolls 301-303 (Fig. 3) and thence to undriven backing rolls 311, 312 and 313, 314 provided with float rolls 315 and 316 respectively. From a second set of bridle rolls 304, 305 the strip passes to a third set of driven tension bridle rolls 306-310. In a further embodiment, a pair of superimposed float rolls 414, 415 supported by an undriven steady roll 413 is used (Fig. 4, not shown). Alternatively, an ordinary rolling mill 609, 610 is used between the bridle rolls 601, 602 and 603, 604 (Fig. 5). On leaving the bridle rolls 603, 604 and before entering the final set of driven bridle rolls 605-608 the strip passes through a series of flexing rolls 611, 612, 613.
Patent GB-1033013-A (GB)
Title: Improvements in or relating to snap-action electric switches
Inventor: BEER DONALD COURTNEY
IPC: H01H13/18
Filed: 1962-05-28
Abstract: 1,033,013. Retractive switches. OTEHALL Ltd. May 28, 1963 [May 28, 1962], No. 20516/62. Heading H2B. A snap-action microswitch comprises a casing 1 having a fixed transverse member 28 shaped for pivotally supporting the ends of a moving contact arm 25 and a leaf spring 27 which are interconnected as shown by a member 26 such that the spring 27 is under compression. A plunger 47 is biased outwardly of the casing by a link 48 resting on leaf spring 27 at its lower end and engaging the apex of a tapered slot 49 in plunger 47. Depression of plunger 47 causes the line joining the ends of member 26 to pass across the pivotal edge of arm 25 and moves contact 9 with an over-centre snap action away from fixed contact 5 into engagement with fixed contact 6. Retraction occurs on release of pressure on plunger 47. An actuating lever may be mounted externally on casing 1 (Figs. 6 and 7, not shown) and may be provided with an angled portion 71 arranged to be perpendicular to the plunger axis at the moment of snapping (Figs. 8 and 9, not shown).
Patent GB-354516-A (GB)
Title: Improvements relating to teapots
IPC: A47J31/06
Filed: 1930-07-07
Abstract: 354,516. Teapots. THOMPSON, J. H., Willaroo, Sackville Street, East Kew, Victoria, Australia. July 7, 1930, No. 20524. Convention date, Oct. 16, 1929. [Class 129.] In a teapot provided with a lid 5 and a flanged infusion chamber 3, as described in Specification 300,540, [Class 129, Tea &c.], the lid is detachable and the infusion chamber is provided with a handle 1 extending through a slot in the edge flange of the lid so that the chamber can be rotated without removal of the lid. The lid is secured against dropping by its flange engaging diametrically opposite lugs on the pot seating.
Patent GB-224592-A (GB)
Title: Improvements in or relating to motor car bodies
IPC: B60R9/06
Filed: 1923-08-13
Abstract: 224,592. Driskell, J. A. Aug. 13, 1923. Luggage and like holders.-In a motor-car body, side curtains F, such as those formed with metal frames and celluloid panels, are stowed in a receptacle between the back B of the rear seat and the rear panel and are separated from one another by one or more sheets K secured along one edge to the receptacle, preferably near its top, access to the receptacle being obtained by a door C. As shown, this door is hinged at its lower edge to the panel and its opening is limited by a strap E. Fastening means may be provided on the free edges of the sheets K.
Patent GB-797218-A (GB)
Title: Improvements in and relating to cooking vessels
IPC: A47J27/026
Filed: 1955-07-16
Abstract: 797,218. Bastes. BARTLEY, L. R. July 16, 1956 [July 16, 1955], No. 20647/55. Class 126 [Also in Group XVII] A trumpet shaped shield or support for an open topped and annular shaped cooking vessel 1 having a central upstanding flue 7 (see Group XVII) comprises a peripheral part 12 to support the bottom 5 of the vessel and a tubular part 11 extending upwardly into the flue 7, the walls of the flue 7 and the tubular part 11 being slightly tapered, the latter more so than the former. The shield or support may be pivoted to a heater, stove or the like 13, 14 so that it can be pivoted out of the way when not required.
Patent GB-991113-A (GB)
Title: Method of treating wood and wood treated thereby
Inventor: MACDOUGALL TREVOR IAIN ARCHIBA
IPC: B27M3/06
Filed: 1961-06-08
Abstract: The end grain faces of wooden blocks are coated with a composition comprising a liquid polyester resin and an organic peroxide catalyst with or without colouring matter, the catalyst causing the resin to set to a moisture-impermeable layer.  The wooden blocks may be adhered to a concrete surface by the same composition to form a floor.
Patent GB-1050444-A (GB)
Title: Method of soldering and fluxing composition therefor
Filed: 1963-05-24
Abstract: 1,050,444. Soldering fluxes. LIBBEYOWENS-FORD GLASS CO. May 24, 1963 [June 13, 1962], No. 20741/63. Heading C7M. A soldering flux composition for applying to a surface to be soldered, particularly for soldering lead alloy separator strips to copper alloy coatings adherent to glass sheets in making multiple sheet glazing units, comprises by weight 0À5 to 24 parts of a film-forming material e. g. methyl cellulose, polyvinyl alcohol, polyvinyl-pyrrolidone, sodium carboxymethylcellulose, acacia gum, thermoplastic resin, polyethylene emulsion, rosin or rosin derivative, 1 to 16 parts of a  fluxing agent e.g. hydrazine monohydrobromide, tartaric or citric acid, or glutamic acid hydrochloride, 0 to 0À1 parts of a surface active agent, preferably organic and non-ionic, and 5 to 300 parts of a liquid vehicle such as water and/or an alcohol e.g. methanol or isopropanol. Any polyethylene emulsion may contain morpholine. The composition dries to form a dry, non-tacky, adherent film binding the fluxing agent to the surface. Urea may be added to the composition as a flux improver.
Patent GB-771043-A (GB)
Title: Frictional holding device for use in wells
IPC: E21B23/04
Filed: 1955-07-18
Abstract: 771,043. Boreholes and wells. HAINES, M. W. July 18, 1955 [July 26, 1954], No. 20764/55. Class 85. A frictional holding device mounted on a tubing string has smooth surfaced anchoring members which are urged against a tubular member positioned in the well by fluid pressure in the tubing string so that the smooth surfaces frictionally engage the tubular member. In one embodiment the anchoring members are bowed springs 4 each having a smooth surface 5, one end 10 secured to a section 8a of the tubing string 8, and the other end slidably secured to a section 8b of the tubing string 8 between a block 16 and a housing 17. An intermediate enlarged section 8c secured to the sections 8a, 8b has pairs of ports 18 which form cylinders for pistons 21, the inner surfaces 20 of which are acted upon by the fluid the tubing string 8 and the outer surfaces 22 of which engage the springs 4, each pair of pistons engaging one spring. The pistons are retained in the cylinders by pins 24 secured to the cylinders and engaging slots 26 in the pistons. The total surface area of the pistons 21 subject to fluid pressure is five to six and a half times the average internal crosssectional area of the tubing string 8. When the fluid in the tubing string is subjected to pressure by a lifting pump P, Fig. 1 (not shown) or otherwise the pistons 21 press the spring 4 against the well casing 3 and anchor the tubing string to the casing. When a force tending to move the string axially is greater than the frictional force between the springs 4 and the casing 3, the springs 4 will slide along the casing without causing any damage, thereby relieving the string of excessive loads and also allowing it to be moved to another position. In another embodiment the springs 4 are dispensed with and outer smooth surfaces of the pistons 21 frictionally engage the casing 3.
Patent GB-1269664-A (GB)
Title: Process for producing 1,4-benzodiazepine derivatives and their salts
Inventor: YAMAMOTO HISAO
IPC: C07D209/14
Filed: 1969-04-23
Abstract: 1,269,664. Benzodiazepines. SUMITOMO CHEMICAL CO. Ltd. 23 April, 1969 [26 April; 1968; 19 Aug. 1968 (3); 9 Oct., 1968 (3); 18 Oct., 1968; 2 Nov., 1968; 15 Nov., 1968], No. 20819/69. Heading C2C. Compounds of the general formula (R 1 =H, halogen, C 1-4  alkyl or alkoxy, CF 3 ; R 2  = C 1-6  alkyl, aralkyl ; R 3  = H, C 1-4  alkyl, aralkyl, cycloalkylalkyl, Ph, halogen-substituted phenyl) and their salts are prepared by oxidizing a compound of the formula or salt thereof. The above compounds are tranquillizers, muscle relaxants, antispasmodics and hypnotics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-880412-A (GB)
Title: Lubricants
Inventor: MILLS MAURICE ROBERT
Filed: 1958-06-30
Abstract: A lubricating composition, suitable for the lubrication of air turbines used to drive dentists' drills, comprises one or more glyceryl triesters of C6-C8 paraffin monocarboxylic acids and a minor proportion of castor oil.  Acids mentioned are caproic, oenanthic and caprylic acids.  Glyceryl tricoprylate may be used in conjunction with glyceryl triesters of other paraffin monocarboxylic acids, but glyceryl triesters of acids containing more than 8 carbon atoms should not be present to the extent of more than about 8% of the weight of the tricaprylate.  In an example, a lubricating composition is described consisting of glyceryl tricaprylate (prepared from a commercial caprylic acid containing small amounts of caproic and capric acids) and castor oil.ALSO:Glyceryl tri-caprylate may be prepared by esterifying commercial caprylic acid (which contains small proportions of caproic and capric acids) with glycerol under reflux and in the presence of xylene as entraining solvent.  After reaction for 18 hours, the solvent is distilled off and the residual acidity of the ester is neutralized with caustic soda solution.  The ester is then washed free of soap, dried and bleached with a mixture of active earth and activated carbon.  The bleaching agent is removed by filtration and the ester then deodorized by treatment with live steam.
Patent GB-643637-A (GB)
Title: Improvements in or relating to ballasts for use in the circuits of electric discharge lamps
IPC: H01F38/10
Filed: 1948-08-07
Abstract: 643,637. Inductances. EKCO-ENSIGN ELECTRIC, Ltd., and STICKLEY, W. A. Aug. 7, 1948, No. 20886. [Class 38 (ii)] A ballast for use with an electric discharge lamp comprises two inductance coils c, d mounted on a common core e and arranged so that the adjacent poles of the windings are similar, the electrical characteristics of the ballast being adjusted by variation of the distance between the coils, the coils being permanently fixed after adjustment, e.g. by impregnating the whole assembly in a thermosetting material. The heavy broken lines indicate the paths of the magnetic flux so that the spaces g form air gaps in these paths. Movement of the coils towards each other causes the fluxes across the air gaps to be bunched together having an effect similar to that of increasing the length of the air-gaps.