baber/WOPTO huggingface dataset:
Patent GB-383352-A (GB)
Title: Improvements in or relating to a method and apparatus for wireless tuning circuits
IPC: H05K9/00
Filed: 1931-09-18
Abstract: 383,352. Inductances. BRANCH, L. E. T., 15, The Crescent, Ilford, Essex. Sept. 18, 1931, No. 26201. [Class 37.] The coils of a multiwave-range band-pass filter are provided with a screen so arranged as to lower the mutual inductance between the coils for use on the lower wave-ranges to a greater extent than that between the coils for use on the higher wave-ranges. In the construction shown in Fig. 1. two cylindrical formers a, a<1> are mounted in a metallic screening- box b with their axes parallel, and carry singlelayer windings m, m<1> for medium waves and pile-wound windings l, l<1> for long waves. A switch s is arranged to short-circuit the coils l, 1<1> for the medium wave-band, the connections being shown in Fig. 2. A sheet-metal screen p is inserted midway between the axes of the coils m, ml with its plane at right-angles to that containing the axes of the coils and extending across the width of the box b so as to reduce the mutual inductance between the windings m. m<1> to a greater extent than it reduces that between the windings l, l<1>. In a modification, Fig. 3, the long-wave coils l<2>, l<3> are arranged with their axes in the same straight line, the medium-wave windings m<2>, m<3> having their common axis parallel with that of the coils l<2>, l<3>. A metal sheet p<1> is positioned midway between the coils m<2>, m<3> with its plane at right-angles to their axis. Short-circuited turns p<2> may be arranged midway between the coils 12, 13. Specification 366,273 is referred to.
Patent GB-147384-A (GB)
Title: Transmission mechanism for automobiles
IPC: B60K17/08
Filed: 1919-10-25
Abstract: 147,384. Moore, H. N. Oct. 25, 1919. Retaining-devices for controlling-apparatus.-A hand-lever 46 for operating a gear-clutch is universally jointed on pins 48, 45, so that it can be moved first transversely of the car to free a retaining pin 49 from one of three holes, and then longitudinally to shift the clutch.
Patent GB-463071-A (GB)
Title: Improvements in or relating to radiators used in panel heating of buildings
IPC: F24D3/16
Filed: 1935-09-23
Abstract: 463,071. Radiators for heating and cooling buildings. SANKEY & SONS, Ltd., J., and POYNOR, F. W. Sept. 23, 1935, No. 26272. [Class 64 (ii)] In a radiator for heating or cooling in which fluid is passed through a grid of pipes B held firmly in contact with a face panel A acting as a radiator surface, the marginal portions of the panel are secured in contact with the outer surfaces of bases c of sheet metal trimmers C of channel section adapted to be secured to a wall to which the open sides of the channels are presented. The outer side wall c of the channel is flanged out at c3 in a direction parallel to the panel, and slants in at c<2> to form a key for wall plaster. Metal straps c<4> may connect and be stamped out integral with trimmers on opposite sides of the panel. The pipes B may be welded to the panel or to the metal straps, which are recessed at c<5> to receive them. The panel is held by screws e and may form a skirting having rearwardly extending flanges engaging packed grooves or rabbets in the trimmers. A sheet of heat-insulating material may be placed on the wall behind the grid B.
Patent GB-982147-A (GB)
Title: Improvements in or relating to hot wire anemometers
Inventor: SOMERVILLE MICHAEL JOHN
IPC: G01P5/10
Filed: 1961-07-20
Abstract: 982,147. Measuring electrically. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 20, 1962 [July 20, 1961], No. 26292/61. Heading G1N. [Also in Division H3] In a hot wire anemometer capable of measuring rapid variations in air velocity, the amplitude of oscillation of a H.F. carrier is representative of the velocity of the air-stream past the hot wire. As shown, Fig. 3, a bridge comprising a hot wire RW, e.g. a 0.0001 inch etched platinum wire, and a variable comparison resistor RO, is supplied by a transformer T1 whose primary winding is tuned by a capacitor to resonate at a frequency of hundreds of kc./s. The output from the bridge is fed via an amplifier, a stabilizing network, and a power-amplifer, back to the primary of T1. The air velocity analogue signal is taken from across the transformer secondary to a demodulating circuit. In Fig. 2, the output from the hot wire bridge AMC is fed via a capacitor CS to a 2-stage error amplifier AMD and thence to a push-pull output stage PP which is connected to the tuned primary of ferritecored transformer OTR. H.F. carrier amplitude is stabilized by a fast-acting, non-linear stabilizing circuit STC loading the transformer. Alternatively, stabilization is obtained by modification of the feedback circuit of the error amplifier, Figs. 4, 5 (not shown). Fig. 6 (not shown) depicts an amplifier, the output stage of which is arranged to provide connection to alternative linear and non- linear stabilizing units. Transistor circuits may be used.
Patent GB-1001068-A (GB)
Title: Method for producing methionine-methylsulfonium salts
IPC: C09B43/00
Filed: 1962-07-09
Abstract: The invention comprises methionine-methylsulphonium cyclohexylsulphamate, n-butylsulphamate and benzylsulphamate, and a method for converting a methionine-methylsulphonium salt into a second methionine-methylsulphonium salt by treating a strongly acidic cation-exchange resin containing sulphonic acid groups with an aqueous solution of the first said salt whereby the methionine-methylsulphonium cations are adsorbed on the resin, eluting the treated resin with a solution of a base in a polar solvent to displace the methionine-methylsulphonium ions and treating the methionine-methylsulphonium base so obtained in the eluate with an acid having as anion the anion of the desired second methionine-methylsulphonium salt.  The resin may be used in its salt form but the hydrogen form is preferred.  Suitable bases for use in the elution of the treated resin are solutions of metal hydroxides, ammonia and primary, secondary or tertiary amines. Suitable solvents therefor are water, polar organic solvents or mixtures thereof.
Patent GB-1584167-A (GB)
Title: Internal combustion engine having a system for controlling the speed of a crankshaft thereof
IPC: F02D1/04
Filed: 1977-06-23
Abstract: In the device the fuel injection pump (1) of a piston internal combustion engine is driven by the crankshaft (4) by way of a first transmission (3) and a control shaft (2). The control shaft (2), by way of a second transmission (10), drives a speed governor, which controls the injection pump by way of a linkage (7). A damping element (17), which has a flywheel (19) and a torsionally elastic element (18), is connected between the second transmission (10) and the governor (6). The transmission of torsional vibrations of the crankshaft to the governor is thereby prevented. <IMAGE>
Patent GB-282523-A (GB)
Title: Improvements in or relating to apparatus for cleaning the windscreens of motor propelled vehicles
IPC: B60S1/18
Filed: 1926-10-22
Abstract: 282,523. Monnot, J. F., and Klaxon, Ltd. Oct. 22, 1926 Windows and the like, cleaning.-The wiping element is moved in contact with the screen through the medium of a screw-threaded rod movable horizontally by the engagement therewith of a rotatable sleeve. In the construction shown, the rod a, carrying at each end a wiper l, is formed with right and left hand screw threads for engagement with a circular pawl b, which is adapted to be rotated by means of a sleeve c driven, through worm gearing, from an electric motor. The pawl is mounted in slots in studs b<2> which are rotatably mounted, about a vertical axis, in a carrier b<1> secured to the sleeve c. 'The studs b<2> differ in thickness so that the pawl is eccentrically mounted with respect to the rod a. The rod is guided in a slotted casing hand is attached to the wipers l by means of plates k with tubular ends k<1>, the plates passing through the slot in the casing. A flexible strip is provided which tends to close the slot. Each wiper is pivotally mounted in an end k<1> of the plate k and is pressed resiliently against the screen by means of a spring o<3>.
Patent GB-1309069-A (GB)
Title: Apparatus for controlling the electrolytic current in an electrlytic  process
IPC: C25D21/12
Filed: 1971-04-19
Abstract: 1309069 Automatic current control FERNSTEUERGERATE KURT DELSCHE KG 19 April 1971 [7 April 1970] 26449/71 Heading G3R The current supplied to an electrolytic bath 2 from a variable transformer 1 and rectifier 18 is maintained at a desired valve by a control system comprising a resistor 3 which detects the actual current and supplies a signal to a comparator 5 via an amplifier 4, the comparator 5 being supplied with a signal representative of the desired current from a circuit including a constant voltage source 6, potential dividers formed by resistor pairs 7, 8; 9, 10; 13, 14 and amplifiers 11, 15. The resistor 7 is adjusted according to the surface area of the material to be treated, the resistor 9 according to a required optimum current density in the bath and the resistor 13 in accordance with the number of parts (or work pieces) to be treated in the bath, the resistors 7, 13 being applicable when a number of identical parts are to be treated simultaneously, in which case the setting of the resistor 7 corresponds to the surface area of one part. The resistors 8, 10 and 14 set a respective lower limit for the parameter associated with the setting of resistors 7, 9 and 13. Instruments 16, 17 and 19 respectively indicate the values of the total surface area of the parts, the desired value of current and the actual value of current. Comparator 5 may take the form of an electronic relay controlling a servo-motor 20 for adjusting the transformer 1. A resistor 21 of a pair 21, 22 connected across the source 6 is mounted on the spindle of the resistor 9, so that it has the same setting as the latter and the voltage taken from resistros 21, 22 corresponds to that from resistors 9, 10. A further resistor 23 is set to produce a voltage which corresponds to the rate of the electro-chemical reaction in the bath and which is applied to an integrator 24 (e.g. a measuring motor) driving a counter 25 controlling a switch 26. The counter 25 thus indicates material transfer in the bath and may be set to a desired value, so that when it is reached the switch 26 is opened to de-energize a relay 28 and so switch off the current to the bath. Each resistor and the counter may be adjusted by servo-motors as part of an automatic programming operation. A simplified control system for treating one part is described, Fig. 1 (not shown).
Patent GB-242781-A (GB)
Title: Improvements in or relating to combined petrol tap and filter devices
IPC: B01D35/02
Filed: 1924-11-06
Abstract: 242,781. Ewarts, Ltd., and Faherty, E. J. Nov. 6, 1924. Strainers, applications of.-In a combined petrol tap and filter device consisting of a tap a the body of which has a cylindrical axial extension b housing the filter and having a laterally projecting portion k to which the petrol pipe is connected, the filter comprises a gauze cylinder e secured to a hollow screw plug f having holes h and a groove i communicating with the bore in the lateral extension k. The lateral extension may be integral with or separately formed from the axial extension.
Patent GB-860949-A (GB)
Title: Electric arc welding
Inventor: CRESSWELL ROBERT ARTHUR
IPC: B23K9/28
Filed: 1957-08-22
Abstract: A flux having the following composition in parts by weight: 31 titanium dioxide, 16 calcium fluoride, 9 ferro-manganese, 2 ferro-silicon, 42 iron powder forms the core of an electrode for arc welding (see Group XXII).
Patent GB-227545-A (GB)
Title: Improvements in or relating to trumpets or horns for wireless apparatus, gramophonesand other sound amplifying, recording and reproducing instruments
IPC: G10K11/02
Filed: 1923-10-24
Abstract: 227,545. Forbes, Sir C. S. Oct. 24, 1923. Sound magnifying and directing appliances. - A wooden horn is formed of triangular section, preferably equilateral, the sides of the triangles constituting tangents to circles the areas of which increase in a predetermined proportion. The horn is built up of three strips a, b, c, of birch maple, Swiss pine &c., which are bevelled on their edges. The strips may be of different thicknesses and different woods. The horn passage may be straight with the base strip a slightly concave outwards and the side strips b, c slightly flared, or may be of curved form in which case the strip a is flared and bent, and the strips b, c are cut to the desired curved shape and are slightly warped on assembly in order to make their upper edges meet at all parts. The mouth portion may be entirely closed, the sound then coming off the back as in a musical instrument. An adaptor e serves to connect the triangular horn to the circular fitting of a telephone receiver d or of a gramophone tone-arm.
Patent GB-1262007-A (GB)
Title: High molecular weight polyquinazolones
IPC: C07D265/22
Filed: 1969-05-27
Abstract: 1,262,007. Polyquinazolones. FARBENFABRIKEN BAYER A.G. 27 May, 1969 [26 June, 1968], No. 26629/69. Heading C3R. [Also in Division C2] A polyquinazolone (A) comprises recurring units (I) where R is alkyl or aryl; R 1  is a single bond, -SO 2 -, -CO-, -O-, -S-, alkylene, cycloalkylene, or aralkylene, or (II) where X is -O-, -S-, -SO-, -SO 2 -, or -CO-; R 2  is phenylene, naphthalene, or diphenylene, substituted or not; Z is (III) or (IV) where Y 1  is phenylene, naphthalene, or diphenylene, substituted or not, or (V) Y 2  is -SO-, -SO 2 -, -CO-, -O-, -S-, C 1-3  alkylene, cycloalkylene, or aralkylene, and n is 2-20; (A) has rel. soln. viscosity # rel  1À1 for 0À2 g. (A) in 100 ml. CHCl 3  at 25 C., and softening range 250-350 C. Polyquinazolone (A) is made by polycondensing a polymer homologous mixture, i.e. a mixture of homologous compounds differing in the value of n, of aromatic diamines H 2 N-R 2 -Z-R 2 -NH 2  with dibenzoxazinones (VI) in high boiling organic solvents, having b.p. > reaction temperature, at 80-250 C., H 2 O being eliminated. The solvent should dissolve (A) and preferably the starting materials; it may be N,N - dimethylformamide, N - methylpyrrolidone, C 6 H 5 Cl, C 6 H 4 Cl 2 , N,N - dimethylacetamide, or N-dimethyl sulphoxide. A drying agent, e.g. Na 2 SO 4 , CaSO 4 , CaCl 2 , or P 2 O 5 , may be present. The diamines may be mixed with up to 50 mol. per cent low M.W. aromatic diamines. N 2  may be passed during the reaction. The reaction is preferably performed stoichiometrically but one component may be in excess. (A) may be precipitated by pouring into excess H 2 O or precipitating agent; or threads or foils may be formed directly from (A) solutions, or from a melt of (A); articles may be injection moulded. (A) may readily be dissolved in CHCl 3  or CCl 4 .
Patent GB-208274-A (GB)
Title: Improved concertina
IPC: G10D11/02
Filed: 1922-10-03
Abstract: 208,274. Taylor, F. S. Pitt-. Oct. 3, 1922. Concertinas.-The keys at the right-hand end of the instrument are arranged as shown in Fig. 7, those for the left-hand end being arranged in the reverse order. Housings 9 forming channels 12 are provided at each end for the reception of supporting-straps. The housings may be formed on the framework of the instrument, or separate therefrom. Specifications 102,552, 109,423, and 136,300 are referred to.
Patent GB-884976-A (GB)
Title: Improvements in or relating to lubricant additives
IPC: C08F20/34
Filed: 1960-08-02
Abstract: Lubricating compositions comprise a lubricant, e.g. a mineral oil, or a synthetic ester oil, and one or more copolymers made from a mixture of 3-60% by weight of an ester of an unsaturated carboxylic acid with an alkanolamide of a C1-C20 fatty acid and 40-97% by weight of a C8-C22 aliphatic alcohol ester of acrylic and/or methacrylic acid. The copolymers may also contain additional comonomers in such proportion that the copolymer is oil-soluble, e.g. acrylamide and/or methacrylamide, N-isobutyl methacrylamide, methyl methacrylate, acrylonitrile and vinyl pyrrolidone.  Alkanolamide esters specified are those of acrylic and methacrylic acids and the dimers thereof with coconut fatty acid monoethanolamide and N-methylethanolamide, and the monoethanolamides of acetic and propionic acids.  Lauryl methacrylate is specified as an example of a C8-C22 alcohol ester of acrylic and/or methacrylic acid.  The lubricating compositions may include other additives, e.g. dispersing agents.  Specification 818,249 is referred to.ALSO:Copolymers are made by copolymerizing a mixture comprising 3-60% by weight of an ester of an unsaturated carboxylic acid with an alkanolamide of a C1-C20 fatty acid and 40-97% by weight of a C8-C22 aliphatic alcohol ester with acrylic and/or methacrylic acid.  The copolymers may also contain additional comonomers in such proportion that the copolymer is oil-soluble, e.g. acrylamide and/or methacrylamide, N-isobutyl methacrylamide, acrylonitrile, methyl methacrylate and vinyl pyrrolidone. Alkanolamide esters specified are those of acrylic and methacrylic acids and the dimers thereof with coconut oil fatty acid monoethanolamide and N-methyl ethanolamide and the monoethanolamides of acetic and propionic acids.  Lauryl methacrylate is specified as an example of a C8-C22 alcohol ester of acrylic and/or methacrylic acid.  Polymerization may be carried out in solution in mineral oil with the aid of azodiisobutyronitrile.  The copolymers are used as additives to lubricants.  Specification 818,249 is referred to.ALSO:The coconut oil fatty acid monoethanolamide ester of dimeric methacrylic acid is made by alcoholysing dimeric methyl methacrylate with the coconut oil acid ethanolamide. Specification 818,249 is referred to.
Patent GB-1529510-A (GB)
Title: Embedding radioactive and/or toxic solid matter
IPC: G21F9/30
Filed: 1976-06-28
Abstract: 1529510 Processing radioactive waste OSTERREICHISCHE STUDIENGESELLSCHAFT FUR ATOMENERGIE GmbH and VEREINIGTE EDELSTAHLWERKE AG 28 June 1976 [26 June 1975] 26789/76 Heading G6R Radioactive and/or toxic solid matter is embedded in a binder by adding flowable hardenable binder to the solid matter in a container maintained under reduced pressure, and then hardening the resin. During the addition of the binder, the container may be maintained at a temperature above the softening point of the binder. The solid matter may be formed by drying or decomposition in the container before adding the binder. For storage, the filled container may be placed inside another container with binder filling the intervening space. In examples radioactive or toxic solid material is embedded in bitumen, concrete, or metals such as Sn, Pd, Sb, or Al, or alloys thereof. Suitable apparatus is described with reference to a drawing.
Patent GB-173061-A (GB)
Title: Improvements in attachable rubber soles and heels for boots and shoes
IPC: A43B13/12
Filed: 1920-09-21
Abstract: 173,061. Fish, J. H. Sept. 21, 1920. Protector, construction of.-Rubber soles and heels which are secured by leather strips d inserted in grooves have the leather studs and the grooves bevelled at both edges so as to produce a wedging action, thus forcing the rubber into the soles at the edges and preventing entry of wet &c. The rubber sole may be provided with raised portions at j, d<1>, e<1> to compensate for increased wear.
Patent GB-1179678-A (GB)
Title: Improvements in or relating to Indexable and Reversible Cutting Inserts
IPC: B23B27/16
Filed: 1968-06-05
Abstract: 1,179,678. Cutting tools. CARMET CO. 5 July, 1968 [26 June, 1967], No. 26858/68. Heading B3T. A cutting tool 10 comprises an indexable and reversible cutting insert 14 which is secured to shank member 12 by a screw 16, the insert having a hub portion 20 from which a plurality of projecting portions 22, 24, 26 extend radially, each portion having a peripheral edge 28 and cutting edges 30, 32 extending transversely thereto one on each side of a radial line intersecting the peripheral edge. The number of cutting edges is double the number of projections, each projection being substantially identical in size and shape. A support element 34 which is secured to the shank 12 has a pair of angularly disposed bearing surfaces 40, 42 which co-operate with adjacent cutting surfaces of two successive projections to accurately determine the position of the insert on the shank.
Patent GB-700395-A (GB)
Title: Improvements in or relating to power transmission gearing for tractors
IPC: F16H3/66
Filed: 1951-11-16
Abstract: 700,395. Tractor driving gear. INTERNATIONAL HARVESTER CO. Nov. 16, 1951 [Nov. 17, 1950], No. 26913/51. Class 79(2) [Also in Group XXIV] A tractor has between the power plant and the change speed gear box a torque amplifying means comprising an epicyclic gear including separately operable control means and arranged so that the torque transmitted to the change speed gear box may be varied without interrupting the drive to the road wheels. The epicyclic gear includes a controllable normally stationary reaction member arranged so that increased torque is obtained by permitting rotation of the said reaction member. As shown in Fig. 1 power is transmitted from an internal-combustion engine 10 to the road wheels 6 via a disc clutch 16, a torque-amplifying epicyclic gear 46 and a change speed gear box 150. The epicyclic gear has a driving shaft 19, Fig. 2, to which is splined a sun pinion assembly 56, 58. The sun pinion 58 meshes with planetary pinions 66 connected by pins 68 to a planet carrier 70 rotatably mounted on the driving shaft 19. The pinions 66 mesh with an annulus 74 rotatable on the hub 78 of the carrier 70. Annulus 74 has a peripheral friction surface 80 engageable by a brake band 82 actuated by a linkage 100 from a hand lever 108. The pins 68 are also connected to an annulus 114 meshing with planetary pinions 118 connected by pins 120 to a planet carrier 124 integral with the output shaft 62. The annulus 114 has an external cylindrical surface 126 associated with a one-way clutch including a number of cam members which resist rotation of the annulus 114 in one direction. For normal operation the brake band 82 is applied to the friction surface 80 to hold the annulus 74 stationary so as to drive the annulus 114, the latter together with the sun 56 driving the carrier 124 and shaft 62. When a higher torque is required the brake is released from the annulus 74 and the annulus 114 is held from backward rotation by the one way clutch so that the sun 56 drives the carrier 124 at reduced speed.
Patent GB-1057864-A (GB)
Title: Polyether acetals and process for preparing them
IPC: C08G4/00
Filed: 1963-07-08
Abstract: 3,11 - Divinyl - 2,4,10,12 - tetroxadispiro - [5,2,5,2]-hexadecane of formula <FORM:1057864/C2/1> is prepared by heating 1,1,4,4-tetramethylolcyclohexane with acrolein in benzene in the presence of camphor sulphonic acid.ALSO:Polyether acetals are obtained by polymerizing divinyl tetroxaspirans of formula <FORM:1057864/C3/1> or of formula <FORM:1057864/C3/2> where R, R1, R11 and R111 are hydrogen atoms, halogen atoms or alkyl radicals, R1, R2, R3 and R4 are hydrogen atoms, hydroxyl groups, alkoxy radicals or alkyl radicals, Y is an alkoxy radical or a hydroxymethyl radical or a -CH2O-alkyl radical, X is an alkylene radical, and n and m are each from 1 to 3, with a dihydric or polyhydric alcohol alone or in admixture with one another if R1 - R4 is OH or if Y is CH2OH.  The polymerization is carried out by first melting the tetroxaspiran, mixed with the di- or polyhydric alcohol if used, together with 0.05 to 2% by weight of a cationically active catalyst, at 100 DEG  to 200 DEG  C., and then heating the melt at 40 DEG  to 200 DEG  C. for 5 to 180 hours.  In examples, the tetroxaspirans are compounds of formulae <FORM:1057864/C3/3> <FORM:1057864/C3/4> <FORM:1057864/C3/5> the di- and polyhydric alcohols are pentanediol - 1,5, propane - diol - 1,2, hexane - diol-1,6, bismethylol - cyclohexane - 1,4, 1,1,3,3-tetramethylcyclo - butane - dimethylol - 2,4 and glycerol, and the catalysts are camphor sulphonic acid, p-toluene sulphonic acid and diethyl sulphate.