baber/WOPTO huggingface dataset:
Patent GB-1018725-A (GB)
Title: Process for production of spinnable polyesters
IPC: C08G63/82
Filed: 1963-02-11
Abstract: In the manufacture of polyethylene terephthalate by reacting dimethyl terephthalate with ethylene glycol and polycondensing the product, there is used as a catalyst a metal salt of a hydroxyacetophenone carboxylic acid or a hydroxybenzophenone carboxylic acid.  Specified acids are 4-hydroxy-acetophenone-5-carboxylic acid, 4 - hydroxy - acetophenone - 3,6-dicarboxylic acid, salicylol - salicylic acid, 2-hydroxy - benzophenone - 6 - carboxylic acid and 2 - hydroxy - benzophenone - 3,61 - dicarboxylic acids. Specified salts are the Ca, Ba, Cd, Co, Pb, Mn, Sn, Zn, Cr, Zn-Mn and Co-Mn salts.
Patent GB-413792-A (GB)
Title: Improvements relating to electrical choke coils
IPC: H01F17/00
Filed: 1933-02-23
Abstract: 413,792. Protective arrangements. TUSTIN, A., 22, Glentilt Road, Sheffield, KING, A. J., 46, Raglan Road, DANNATT, C., 39, Marlborough Road, both in Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 23, 1933, No. 5579. [Class 38 (iv).] Choke coils for suppressing extraneous highfrequency interference with radio circuits are constructed to be resonant at currents of two frequencies, e.g. on 300 and 1500 metre wavelengths, the coil being in two sections, one of which is connected in the power circuit and both being shunted by a capacitance and forming two electrically coupled closed circuits. The coil sections may be coupled magnetically so that the resonant frequencies depend on the ratio of mutual to combined self-inductance, or they may be capacitatively coupled, the resonant frequencies depending mainly upon the capacity ratio of the circuits. The inherent capacity of the coil sections may be utilized, or a portion of the winding itself may form one plate of the condenser. In one arrangement, the coil section 1 carrying the power current is wound from flat strip conductor and the coil 2 is constructed of ordinary round conductor. The capacitances are formed by sheaths 10, 12 connected to the inner turns of the coil sections.
Patent GB-1107311-A (GB)
Title: Polyphase filter
Inventor: GINGELL MICHAEL JOHN
IPC: H03H7/01
Filed: 1967-02-06
Abstract: 1,107,311. Filters. STANDARD TELEPHONES & CABLES Ltd. 6 Feb., 1967, No. 5581/67. Heading H3U. A method of filtering a polyphase signal having N (greater than or equal to three) components spaced from one another at 360/N degrees wherein the signal is applied to a filter section containing precisely two inductors each having n (at least two and not greater than N) windings of such value and so connected as to suitably attenuate the signal and also to permit information to be obtained at the output of the section concerning the sequence of the N components. In one embodiment. Fig. 2, for a three-phase signal, the two inductors are formed by the windings enclosed by the two dash-line boxes. The components of the output signal are obtained as the differences between terminals 10 and 30, 20 and 10, 30 and 20, respectively.
Patent GB-105605-A (GB)
Title: Improvements in Collapsible Boxes.
Inventor: GARNER CHARLES NORMAN
IPC: B65D6/16
Filed: 1916-04-17
Abstract: 105,605. Garner, C. N., and Wild, E. J. April 17, 1916. Knock-down boxes.--The bottom a, Figs. 6 and 7, of a collapsible box is of wood, strawboard, &c. with a binding or edging b, b<1> of angle-iron screwed or riveted to it at b<2>; this binding is made in one piece, or in two pieces with their ends riveted together. Upstanding clips d, e, f, bent to embrace the bottom at its edges, are provided. The sides g of the box are plain, but the ends h have external angular bindings i, i<1>. These bindings are closed at the top and bottom by bending over their two web portions to meet in a butt mitred joint; or the top or the bottom, or both, may be open. The ends also have corresponding internal angular bindings i<4> forming, with the bindings i, i<1>, housings or sockets to receive the ends of the sides g, these bindings and the ends h being connected together by bolts and nuts k. The sides and ends, thus connected, are dropped on to the bottom between the members b<1> and the clips d, e, f, and the lid p, made like the bottom with an angular binding o and with a series of clips. is placed in position, as shown in Fig. 7. In the set-up box, straps m, pivoted to the members b<1> and shown folded down in Fig. 6, engage by means of slots in their ends with turn-buckles n, shown as attached to the lid in the collapsed form of the box. Fig. 11. The turn-buckle stems mav be made eccentric in order to draw the lid and bottom together. When the box is dismembered, the sides g may be laid in the bottom and the ends h laid thereon, the lid p being put on top, as shown in Fig. 11. Hinged hasps r on the bottom are then connected to the turn-buckles n on one side of the lid, and pivoted slotted links on the other side of the bottom are connected to the turn-buckles on the opposite side of the lid. The clips d, e, f prevent the sides or ends from bulging inwards.
Patent GB-383497-A (GB)
Title: Flight device evolved from the ordinary aeroplane and the helicopter
IPC: B64C23/00
Filed: 1932-02-25
Abstract: 383,497. Aircraft with tiltable propellers. MARMONIER, L., 146, Avenue Felix-Faure, Lyons, France. Feb. 25, 1932, No. 5652. Convention date, Sept. 24, 1931. Addition to 383,494. [Class 4.] The oppositely rotating propellers and engines described in the parent Specification are mechanically linked together and are tilted by a single force. Fig. 4 shows two statically balanced engines and propellers mounted on frames 30, 31 pivoted about transverse axes and geared or linked together and moved by a pedal 33 acting directly or through a servomotor. The axes of the propellers may normally be in line as shown or they may be staggered. The rest of the controls are actuated by a single lever 37. The elevator control comprises fore-and-aft planes 39, 38 linked together so as to balance their reactions upon the pilot's control lever. The pilot and passenger accommodation is arranged at the rear of the machine and a parachute 40 may be provided.
Patent GB-125928-A (GB)
Title: Improvements in and relating to Bicycle and the like Pedals.
Inventor: THOMPSON WILLIAM PHILLIPS
IPC: B62M3/08
Filed: 1919-03-08
Abstract: 125,928. Thompson, W. P., (Torrington Co.). March 8, 1919. Pedals.-One of the end pieces of a bicycle or like pedal has a transverse aperture or perforation 5 and the other a slot 6. The pintles or cross-bars 7 have a hook 8 and a shoulder 9 to engage the aperture 5 and are threaded at their outer ends to engage the slot 6. The dust-guard 13 has apertures 14 to take the threaded ends of the pintles and nuts 10 to hold the parts securely together. Any form of foot-engaging device may be carried by the pintles 7. The invention may be applied to the foot-supports of rat-trap pedals.
Patent GB-709851-A (GB)
Title: Process for bending wood
IPC: B27K5/00
Filed: 1952-03-06
Abstract: 709,851. Bending wood. ROTH, W., KERN, A., [trading as FASSFABRIK DIENER & ROTH], and KOLLMANN, F. March 6, 1952 [March 8, 1951], No. 5816/52. Class 145 (2) Solid wood to be bent is heated in a highfrequency alternating electric field, preferably of between 1,000,000 and 10,000,000 cycles per second, until the moisture in the interior of the wood reaches boiling point. The wood may be heated before passing into the bending machine, either while it is stationary or while it is being fed into the machine, or may be heated in the machine, before bending, between suitably formed electrodes. The temperature inside the wood may be measured by thermo-electric means, by a quartz-glass thermometer or by noting the point at which damp patches appearing on the cross-cut parts of the wood begin to steam. Before being heated in the high-frequency field, the wood is dried out so as to have a moisture content suitable to its subsequent use.
Patent GB-697187-A (GB)
Title: Improvements in or relating to hypsometers
IPC: G01L11/00
Filed: 1951-03-13
Abstract: 697,187. Meteorological instruments. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 13, 1951 [March 16, 1950], No. 6011/51. Drawings to Specification. Class 97 (iii). [Also in Group XIX] A hypsometer for use in a radiosonde is characterized in having a working liquid, the boiling temperature of which, in atmospheric air at any point in the pressure range 100- 760 mm., lies below the expected air temperature at the same point, and preferably less than 50 degrees C below. The expected air temperature is taken as being defined by the equation: Examples of suitable liquids are CCl 2 F 2 , CH 3 Cl and CH 3 OCH 3 .
Patent GB-1259894-A (GB)
Title: Apparatus and method for making two-sided copies from two-sided originals
Inventor: ALTMANN CONRAD
IPC: G03G15/23
Filed: 1969-01-30
Abstract: 1,259,894. Electro-photographic apparatus. EASTMAN KODAK CO. Jan. 30, 1969 [March 26, 1968], No.6071/69. Heading G2H. [Also in Division B6] An apparatus for electro-photographically perfecting copy sheets includes means R for reversing the direction of travel of copy sheets after passing through a first image transfer station, where one side receives a developed image, so as to position the other side to receive a developed image at a second transfer station. The reversing means comprises an endless belt 39 which feeds a copy sheet, pressed thereagainst by an air blast, downwardly towards an endless photoconductive belt 10 carrying spaced apart developed electrostatic images (27, 28), Fig.2 (not shown).
Patent GB-222386-A (GB)
Title: Improvements in or relating to drying ovens
IPC: F26B9/10
Filed: 1924-03-10
Abstract: 222,386. Pellegrino, G. March 10, 1924. Air, controlling circulation of.- Apparatus for drying cereals &c. is provided with a number of compartments 2r - - 2<VIII> each with a floor 4 of wire gauze. Movable partitions 3 permit of the grain being passed from one compartment to the next, ramps 6 causing it to be turned in transit. Air is heated by pipes 5 and passes by regulatable openings 12<I> - - 12<IV> into a lateral conduit 13, which can be divided into sections by dampers 14. The air is led from these sections through regulatable openings 8 into chambers 7 beneath each compartment 2, and passes through the perforated floor.
Patent GB-690724-A (GB)
Title: Improvements in or relating to cutters for use in removing skin from fruit, vegetables and the like
IPC: A47J17/02
Filed: 1951-03-14
Abstract: 690,724. Potato &c. peelers. HUGHES, W. G. Jan. 10, 1952 [March 14, 1951], No. 6091/51. Class 28 (ii). In a potato or apple &c. peeler the slot e, between the fixed (or removable) cutting edge d and the body a, is tapered so that the thickness of skin cut off may be varied by using different parts of the cutting edge. The slot may taper towards the handle b or reversely. The peeler may have two cutting edges d, Fig. 6, for left or right hand peeling such edges being pressed out of the metal of the arcuate or angular body a. In Fig. 4 a single piece c has been struck out to provide two cutting edges d. The cutter may be removable or adjustable on the body.
Patent GB-1410425-A (GB)
Title: Heat exchangers
IPC: F28F13/06
Filed: 1973-02-07
Abstract: 1410425 Tubular heat exchangers; oncethrough boilers WAAGNER-BIRO AG 7 Feb 1973 [9 Feb 1972] 6104/73 Headings F4S and F4A In a heat exchanger, e.g. a once-through steam boiler for nuclear power stations, comprising a pair of spaced apart tube groups 2 and 3, the region between the units contains baffle or deflector means configured to change the direction of flow of fluid leaving group 2 prior to it entering group 3. As shown the baffle means comprises a plurality of radial plates 4. In use fluid 16 flowing near the centre through tube group 2 is deflected outwardly so that it flows in the outer region through tube group 3. Conversely fluid 15 flowing in the outer region through group 2 is deflected to flow through the central region of group 3. Each of the tube groups 2 and 3 is subdivided into concentrically disposed subgroups 11, 12 and 13, 14, and the tubes comprising the subgroups 11 and 13 may be helical tubes wound in the opposite sense to those in the subgroup 12 and 14 (see Fig. 13). The tube groups 2 and 3 may be interconnected by connecting tubes (5, Fig. 5, not shown) arranged in sector-shaped compartments defined by radially extending deflector plates (4). Additional vane or deflector members (10) may be provided to give the fluid passing through the space 1 a deflection of 180 degrees. In an alternative embodiment (Fig. 6, not shown) the baffle means in the space 1 comprises cylindrical baffle members (4), with the tubes interconnecting the tube groups (2 and 3) being disposed in the bioconcave spaces defined between adjacent cylindrical baffles. Other baffle arrangements (Figs 7-11, not shown) are disclosed; for example the baffles may be in the form of curved plates of helical configuration. Instead of the tube groups being axially spaced from one another, as shown, the second group of tubes (3) may circumferentially surround the first group (see Fig. 12, not shown).
Patent GB-965065-A (GB)
Title: Flexible drive toothed gear unit
IPC: F04D25/02
Filed: 1963-02-15
Abstract: 965,065. Universal joints; toothed gearing. WORTHINGTON CORPORATION. Feb. 15, 1963 [Sept. 21, 1962], No. 6201/63. Headings F2Q and F2U. Universal coupling means in a countershaft gear drive arrangement providing a stepup, or down, ratio between the shaft 31 of an electric motor and shaft 22 of a highspeed centrifugal gas compressor, turbine or pump, comprise a centre wheel 33 and an outer ring gear 54 formed respectively internally and externally with barrelled teeth (Figs. 5 and 9, not shown) by which they are universally connected for relative axial and radial movement to the impeller shaft 22 and a sleeve 59 similarly coupled at its other end to a driving disc fast on the electric motor shaft 31, the drive passing from the coupling sleeve 59 and ring gear 54 through countershaft gears 34, 35 rotatably mounted on spindles 37 fast in a stationary housing 21, to the centre wheel 33 and shaft 22. The centre wheel 22 is supported radially by the countershaft wheels. The coupling sleeve 59 is retained on both the ring gear 54 and drive disc 56 by snap rings and the centre wheel 33 is similarly located on the shaft 22. Lubricant is pressure fed to a thrust bearing 20 on the impeller shaft 22 and thence to the internal barrelled teeth of the centre wheel from which it centrifugally escapes via radial ducts 82 to feed the outer teeth and meshing countershaft gears 34, 35, the lubricant being additionally fed direct through the spindles 37 to the countershaft gears. Additionally, cooling of the unit may be effected by the introduction of a flow of compressed gas which may be inert to prevent corrosion.
Patent GB-194133-A (GB)
Title: Improvements in and relating to electric conductors suitable for sealing into vitreous material
IPC: H01J5/32
Filed: 1922-03-02
Abstract: 194,133. British Thomson-Houston Co., Ltd, (General Electric Co.). March 2, 1922. Leading-in wires.- To make a seal for a conductor passing through fused silica, a tubular extension 8 is formed in the silica with a conductor 10 enclosed in it, and a metal covering 12 is cast around the extension 8, then the extension and the metal covering are cut through to expose the conductor, and a metal cap 14, Fig. 4, is fused in position to cover the end of the conductor and connect it to the metal 12. If the conductor fits tightly into the bore of the silica, as shown in Fig. 4, the metal 12 has a coefficient of expansion greater than that of silica, and so compresses the silica tube on to the conductor 10 in cooling. If there is a space for admission of metal between the conductor and the silica, as shown in Fig. 6, a metal having a coefficient of expansion less than that of silica is chosen. An enlargement 14<1> may be formed in the tubular extension adjacent the main body of the vessel 9 to minimize risk of breakage. In a modification, the cast metal may itself form the conductor, as shown at 15, Fig. 7, this construction being suitable for making contact with a body of mercury &c. Specification 21383/05 is referred to.
Patent GB-868499-A (GB)
Title: A warp thread constant tension device for looms
IPC: D03D49/06
Filed: 1958-02-26
Abstract: 868,499. Loom shedding mechanisms; tensioning warps. ZMATLIK, J., and JISA, M. Feb. 26, 1958 [Feb. 26, 1957], No. 6256/58. Class 142(2) To prevent chafing of the warp threads in the heald eyes, arcuate heald frames 1 are oscillated about an axis 3b coinciding with the fell; the warp threads pass round a back rest 10 and then divide to pass round compensating rods 6, one for each heald frame. The length of thread between the back rest and the heald eyes is kept constant by straps 16, each of which is attached to a heald frame in line with the heald eyes, passes round the associated rod 6, and is anchored at 10d to the back rest bearing. Each compensating rod 6 swings about a point 10e against the action of a spring 17.
Patent GB-475240-A (GB)
Title: Arrangement for operating the blades of variable pitch propellor or tractor screws
IPC: B64C11/36
Filed: 1937-03-03
Abstract: 475,240. Screw propellers. SOC. ANON. FABBRICA ITALIANA ELICHE PER AVIAZIONE. March 3, 1937, No. 6323. Convention date, March 4, 1936. [Class 114] Variable-pitch actuating mechanism of the kind in which a normally stationary screw member is adapted to be actuated by a worm gearing and in turn move a sleeve which is coupled by rods to eccentric pins on the base of the propeller blades, is so disposed that the sleeve is forward of the plane containing the blade axis and the rest of the mechanism is behind. A screw sleeve 26 is provided with an exterior worm which gears with a worm wheel 27 which is connected up to the cockpit of an aeroplane. This sleeve has an exterior flange mounted in bearings 31 on the hub 5 of the propeller so that it is only capable of a rotary motion. Its inner threaded surface is engaged by a nut member 22 which has an inner sliding face whereby when acted upon by the outer screw it can only move longitudinally. It carries thrust ball races 21 engaging a flange 18 on a sleeve 18<1> which passes to the forward end of the boss and slides upon a cylindrical surface provided there. This sleeve has a collar 18<11> and end piece 19 between which is a sleeve 12 which has pins 13 coupled by rods 14 to pins 15 projecting from a block 16 secured to the base of each blade root.
Patent GB-1141792-A (GB)
Title: An improved power driven agricultural vehicle
Inventor: ROTHERY HENRY CHARLES
IPC: A01B41/00
Filed: 1965-02-15
Abstract: 1,141,792. Tractors. FARM HYDRAULICS Ltd. 13 May, 1966 [15 Feb., 1965], No. 6360/65. Heading B7H. [Also in Division A1] A power-driven agricultural vehicle or tractor comprises a framework body on front and rear wheels and mounting a seat, hand controls, and an implement bar or frame carrying agricultural implements mounted at a location spaced behind the front wheels by suspension means permitting the bar or frame to float. The driver's seat is situated in such a position that the driver's feet can rest on the bar or frame and downward pressure be applied thereto if required. As illustrated, the tool frame 6 on which cultivating tools 7 or other implements e.g. seed drills are mounted, is pivotally mounted on a main frame 1 by arms 8 and supported by chains 9. The chains are connected to arms 10 carried by a spindle 11. A hand lever 15 is connected to the spindle and carries a pawl 14 which co-operates with a ratchet 13. Actuation of the lever raises or lowers the tool frame 6 and also a rear implement tool frame 19 via linkage 16-18. A seat 22 is mounted on a telescopic support 23 the base of which is adjustably mounted on the main frame.
Patent GB-831815-A (GB)
Title: Improvements in semi-conductive devices
IPC: H01L23/16
Filed: 1957-02-26
Abstract: 831,815. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 26, 1957 [Feb. 29, 1956], No. 6434/57. Class 37. A method of making a device comprising a semi-conductor body with at least one rectifying electrode and an ohmic electrode includes the steps of etching the body and electrode assembly and then introducing it into an atmosphere containing nitrogen dioxide and dinitrogen tetroxide and preferably also water vapour. In one embodiment an alloy junction transistor, the main body of which is of P-type silicon, is etched and then mounted in a glass envelope contairing nitrogen dioxide and dinitrogen tetroxide into which water vapour is later introduced. The envelope is then partially evacuated, heated to 190 C. and cooled. In a further embodiment an N-type germanium alloy transistor is mounted after etching in an envelope containing dry nitrogen dioxide and dinitrogen tetroxide. After introduction of addition of moist nitrogen dioxide and dinitrogen tetroxide the envelope is sealed, heated to 65 C. and finally cooled.
Patent GB-988630-A (GB)
Title: N-substituted morpholines having fungicidal activity
Inventor: SANNE WALTER
IPC: C07D263/04
Filed: 1962-02-20
Abstract: The invention comprises compounds of the general formula <FORM:0988630/C2/1> and salts and molecular or addition compounds thereof, in which R1 denotes a cyclalkyl radical with more than 6 annular carbon atoms or a tridecyl or alkyl-phenyl radical, R2, R3, R4 and R5 may be identical or different, each denoting an unsubstituted or substituted methylene radical, the substituents being one or two methyl and/or ethyl and/or phenyl groups, with the proviso that, when R1 represents a tridecyl or an alkyl-phenyl radical, at least one of the radicals R2, R3, R4 and R5 is a substitute methylene radical as defined above.  The compounds may be prepared by (a) reaction of primary amines or alkanolamines with alkylene oxides to form dialkanolamines which are then cyclised by treatment with dehydrating agents, (b) hydrogenating amination of ketones with primary amino alcohols to form N-substituted alkanolamines which are then reacted with alkylene oxides and cyclised as described above, or (c) reaction of unsubstituted or substituted 2,21-dichloroalkyl ethers with primary amines in the presence of acid-binding agents.  The morpholine salts may be prepared by mixing the initial materials, optionally in the presence of solvents, or by treatment of N-substituted dialkanolamines with thionyl halides.  The preparation of N-bis-(2-hydroxypropyl)-tridecylamine is described.  Many other compounds of the invention are listed.  The compounds are fungicides (see Division A5).ALSO:Fungicidal compositions comprise an inert carrier or diluent and a compound of the general formula <FORM:0988630/A5-A6/1> or salts, or molecular or addition compounds thereof, wherein R1 denotes a cycloalkyl radical with more than 6 annular carbon atoms or a tridecyl or alkyl-phenyl radical, R2, R3, R4 and R5 may be identical or different, each denoting an unsubstituted or substituted methylene radical, the substituents being one or two methyl and/or ethyl and/or phenyl groups, with the proviso that, where R1 represents a tridecyl or an alkyl-phenyl radical, at least one of the radicals R2, R3, R4 and R5 is a substituted methylene radical as defined above (see Division C2). The compositions may be in the form of (a) dusting powders containing inert pulverulent carriers or diluents, (b) solid or liquid compositions for the production of sprays containing inert dispersing agents, wetting agents, adhesives or emulsifiers, or (c) admixtures with other fungicides and/or insecticides. Examples are given.