baber/WOPTO huggingface dataset:
Patent GB-571005-A (GB)
Title: Improvements in and relating to variable inductance devices
IPC: H01F21/06
Filed: 1943-10-11
Abstract: 571,005. Inductances. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Oct. 11, 1943, No. 16594. [Class 38 (ii)] A variable inductance comprises two relatively-slidable, series-connected, magneticallyaiding coils 1, 2 and a coil 3 fixedly-spaced from the coil 1 and connected so as to be magneticallyopposed to the coils 1 and 2. Thus, when the coil 2 is moved away from coil 1, the total inductance is further reduced by increased coupling between coils 2 and 3, and the change in inductance is made proportional to displacement of coil 2 over an extended range.
Patent GB-850849-A (GB)
Title: Improvements relating to domestic firegrates
IPC: F24B1/191
Filed: 1958-05-23
Abstract: 850,849. Fireplaces. BAXENDALE, R., BAXENDALE, J., BAXENDALE, P. S., and CASELTON, M. J. July 7, 1959 [May 23, 1958], No. 16602/58. Class 126. In a domestic fire grate of the type in which combustion air is supplied below floor level, two similar ash boxes a, b are carried by a frame c, c<SP>1</SP> which can be turned about a vertical axis to move one ashbox from beneath the firegrate to a position in front of the fireplace where it can readily be removed for emptying, the ashboxes and the frame being within a casing f to which combustion air is admitted and which has a removable cover m above the front ashbox to ensure that the combustion air passes to the rear part of the casing f and thence to the firegrate. A curved deflector q directs ash into the ashbox and the full ashbox is accessible by means of a removable hearth plate p.
Patent GB-156813-A (GB)
Title: Improvements relating to the speed regulation of electric induction motors
IPC: H02K17/38
Filed: 1916-11-20
Abstract: 156,813. British Thomson - Houston Co., Ltd., (General Electric Co.). Nov. 20, 1916. Alternating-current induction machines.-The secondary winding 5 of an induction motor is provided with two sets of slip-rings 6, and each set of slip-rings is connected to a separate regulating commutator machine 10, 11. A resistance 7 may be used in starting the motor, the switches 8. 9 being then closed. The commutator machines are provided with compensating-windings 14 and exciting-windings 15; the windings 15 are connected between one set of terminals of the secondary winding 5 and the brushes of an exciter 20, the exciting-winding 23 of which is connected to terminals of the winding 5. The rotating parts of the machines 10, 11, 20 are driven by an induction motor 30. Switches 25, 26 are provided so that one of the regulating- machines may be cut out during a part of the range of control of the induction motor. A single regulating-machine may be used in conjunction with some other form of regulating- means, such as the resistances 7.
Patent GB-1031849-A (GB)
Title: Polymer solutions
IPC: C09J127/12
Filed: 1965-04-20
Abstract: Copolymers of chlorotrifluoroethylene and vinylidene fluoride, optionally together with tetrafluoroethylene, are dissolved in hexafluorobenzene. The solutions may be used for coating, casting films and for seaming metals and plastic films.ALSO:Substrates, e.g. of metals and plastics, may be coated with solutions in hexafluorobenzene of copolymers of chlerotrifluoroethylene and vinylidene fluoride, optionally together with tetrafluoroethylene. In Example (XI) a polyethylene substrate and a sand-blasted steel panel are coated with hexafluorobenzene solutions of chlorotrifluoroethylene/vinylidene fluoride copolymers.
Patent GB-1213710-A (GB)
Title: Improvements in or relating to ammunition projectiles
IPC: F42B8/20
Filed: 1968-04-05
Abstract: 1,213,710. Projectile fuzes. DYNAMIT NOBEL A.G. 5 April, 1968 [7 April, 1967], No. 16650/68. Heading F3A. A projectile to be fired from a barrel comprises a cylindrical housing 12, Fig. 1, and a fuze comprising a firing pin 6 and a primer 1, one of which is fixed and the other of which is axially displaceable, and a locking means 19 rigidly held in a radial bore by an axially displaceable safety rod 18 which extends in an axial blind hole 17 to the rear of the housing, the rod being arranged to automatically release the locking means upon emergence of the projectile from the barrel whereby the firing pin and primer can come into contact upon impact of the projectile with a target. The projectile is mounted in a cartridge case 5 and the safety' rod is secured by a disc 16 which drops away after emergence of the projectile from the barrel. Braking elements (26, Fig. 5b, not shown) extendable from within the disc ensure rapid dropping away of the disc. The displacement of the safety rod and the locking means can be assisted by springs. A compression spring can be provided between the primer and firing pin. The locking means comprises a ball or pin. In another embodiment, Fig. 4, the projectile is connected to a base element 13 by a disc having a projection 23 and a projection 21 formed with an annular bead 22 which is sheared off upon igniting a propellant 15. The safety rod is displaced through a bore 25 in the disc.
Patent GB-1507346-A (GB)
Title: Fourdrinier papermaking belt
IPC: D03D15/00
Filed: 1975-04-22
Abstract: 1507346 Fourdrinier fabrics ALBANY INTERNATIONAL CORP 22 April 1975 [3 May 1974] 16662/75 Heading D1K A fourdrinier fabric has cross machine strands of polyester having an elongation at break of 90% 5% in their non-woven and non-heat set condition, and having a modulus of elasticity of less than 0.95 x 10<SP>4</SP> p.s.i.. per 10% extension (as defined) and machine direction strands of polyester having in their woven and heat set condition a modulus of elasticity greater than 1.0 x 10<SP>4</SP> p.s.i. per 10% extension.
Patent GB-254744-A (GB)
Title: Improvements relating to presses
IPC: B30B15/06
Filed: 1926-07-02
Abstract: 254,744. Hydraulic Ges. Jury 3, 1925, [Convention date]. Presses. - Heated plates used in presses are formed of plates 7, having grooves in the thickness formed by rolling, united by welding at 11, so that the grooves register to form channels 10 for the heating medium. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a statement that the presses are for wood, indiarubber, fabrics &c., and a drawing of the press. This subject-matter does not appear in the Specification as accepted.
Patent GB-1194478-A (GB)
Title: Improvements in or relating to Binding or Mounting Clips
Inventor: BOURNE WALTER
IPC: F16L3/22
Filed: 1968-04-06
Abstract: 1,194,478. Clips. INSULOID MFG. CO. 21 March, 1969 [6 April, 1968], No. 16676/68. Heading E2B. Binding or mounting means for two bundles of cables or the like comprises two clips each comprising a cradle member 6 adapted for attachment to a base and a ring 13 of elastic material adapted for engagement with hook formations 14 at opposite ends of the cradle member, the two clips having the cradle members swivellably connected back-to-back. As shown, each cradle member 6 is formed with a hollow boss 5 and which is located a headed stud 11 having a flange which is common to the stud associated with the other boss and which facilitates swivelling of either clip relative to the other.
Patent GB-152096-A (GB)
Title: Improvements in and relating to the sizing of textile fabrics
IPC: D06M11/79
Filed: 1919-07-04
Abstract: A sizing-material for textile fabrics is prepared by mixing 3 parts of neutral silicate of soda with 3-4 parts of water, and to the solution adding 3-4 parts of china clay; the resulting mixture is agitated, allowed to stand, and sieved to remove lumps. The material may be left as a paste, or dried and ground to a powder.  Textiles in preparation for bleaching or printing when sized with this material do not require treatment with acid and caustic soda baths; the size can be removed by treatment with boiling water.  Sizing with this material may be used in conjunction with the bleaching process described in Specification 104,048, [Class 15 (i), Dyeing &c., Apparatus for].
Patent GB-865818-A (GB)
Title: Improvements in or relating to magnetic storage devices
Inventor: PERRY GERALD HORACE
IPC: G11C11/06
Filed: 1958-05-27
Abstract: 865,818. Circuits employing bi-stable magnetic elements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 22, 1959 [May 27, 1958; Oct. 10, 1958; March 2, 1959], Nos. 16924/58, 32382/58 and 7131/59. Class 40 (9). A storage element comprising a pair of bi-stable magnetic cores is read non-destructively by means of a short pulse (or an alternating current signal) which disturbs the cores from their stable magnetic states but makes no lasting change in the states. The arrangement is such that while one core is driven further into saturation, the other is driven towards and possibly beyond the knee of the hysteresis curve before the cores return to their normal stable states. The outputs induced by the two cores are fed in opposition to an amplifier. The output from the cores driven towards the knee of the hysteresis loop always predominates. The polarity (or phase) of the resultant signal indicates the digit stored. With a particular arrangement of output and interrogation winding, the direction of the output signal from each core is constant but the magnitude depends on the magnetic state of the core. The storage pairs may be arranged in a three-dimensional matrix. A single core may be common to a number of pairs. A pair may operate in three stable states. Single storage element, Fig. 1.-The two cores 7, 8 are set by a pulse generator 10 to the two states a, b to represent " 1 " and to b,b to represent " 0." An interrogation pulse from generator 12 disturbs the two cores in opposite magnetic directions, the winding 11 being threaded through the two cores on opposite senses. The algebraic sum of the two outputs induced in winding 13 is fed to an emplifier 15 and is gated to the output 17 during the period of the interrogation pulse. If the two cores 7, 8 are set to a third state a,b or b,c the output is zero. Groups of storage devices, Fig. 7.-A group of three or more storage pairs may have a common core 8 and individual cores 7A, 7B, 7C, &c. The interrogation and output windings 11, 13 are threaded through each pair as shown in the same senses as they are threaded in Fig. 1. A switch 22 enables the pairs to be operated in turn. The common core 8 is set to an arbitrary one of the two magnetic states and is used as a reference. If core 8 is set to state a, the two possible states of a pair 8, 7A are a, a and a, b. In a modification, Fig. 8 (not shown) there is a common output winding and the switch selects an interrogation circuit. Matrices.-Storage pairs may be used in a three-dimensional matrix in which " words " are stored in rows parallel to the z axis, each row being threaded by a " word " conductor. A separate " digit " conductor is threaded through all the cores of each x, y plane. A digit is set in a single pair by coincident half-write pulses on " digit " and " word " conductors.
Patent GB-824725-A (GB)
Title: Improvements in or relating to warning devices for motor vehicles
IPC: G08B3/10
Filed: 1957-05-29
Abstract: 824,725. Road-traffic signals on vehicles. BARTON, M. July 28, 1958 [May 29, 1957], No. 16991/57. Drawings to Specification. Class 118 (2). A buzzer is provided at the rear of a vehicle and controlled by a switch closed when the gear lever is moved into the reverse gear position after closing a switch associated with the engine control switch. A reversing lamp may also be controlled by the same switches. Preferably a bi-metallic switch is connected in series with the buzzer to provide intermittent operation.
Patent GB-1432811-A (GB)
Title: Method of constituent analysis of a liquid sample
IPC: G01N21/78
Filed: 1973-04-10
Abstract: 1432811 Analysis on porous support DAMON CORP 10 April 1973 [11 April 1972] 17109/73 Heading G1B A method of analyzing a liquid sample for a constituent of the sample comprises delivering the sample and one or more reactants in a liquid state with repeatable spatial concentration distribution to a selected site of a porous support medium, which may be of glass fibre optionally mixed with cellulosic fibres, to form at the site a layer which is only optically thin (defined), a reaction product being formed within the layer, directing electromagnetic radiation towards the analysis site, and determining from the site a measure of the intensity of the resulting radiation, this being linearly related to the concentration of the reaction product. The measurement may be made using the fluorometer disclosed in Specification 1432812. The test site may be defined by a wax ring. The repeatable spatial concentration distribution of sample and reactant(s) may be obtained by introducing them to the site in an order which minimizes spreading of the one by the other; this may be done by introduction of large molecule substances before small molecule substances. Examples relate to determination of glucose in blood with measurement of the fluorescence of the reaction product.
Patent GB-171687-A (GB)
Abstract: 171,687. Grimme, Natalis, & Co., Akt.- Ges., (formerly Grimme, Natalis, & Co., Commanditges. auf Aktien). Nov. 22, 1920, [Convention date]. Multiplying and dividing apparatus.-In machines of the cam-disc and pin-wheel type having two relatively-movable totalizers a, b upon a single carriage, one totalizer a is movable rectilinearly and at right-angles to the length of the totalizer carriage c, for engaging with and disengaging from the actuating-mechanism. The slidable frame d carrying the totalizer a is provided at both ends with a pin h connected by an arm k with a shaft rotatable by a crank-arm m held in either of its two positions by a pin and sockets m.
Patent GB-951451-A (GB)
Title: Process for the manufacture of linear quinacridone in the ª‰-crystal phase
IPC: C09B48/00
Filed: 1960-05-16
Abstract: Linear quinacridone in the beta-phase is made by heating a wet crude linear quinacridone, obtained by condensing 2 : 5-dianilinoterephthalic acid with polyphosphoric acid, under superatmospheric pressure at a temperature in the range of about 120 DEG  C. to about 200 DEG  C. with an aqueous solution of an inorganic base or mixture of inorganic bases, (a) in the presence of an organic diluent which is inert to alkali, or (b) in the absence of an organic diluent, in which case, after filtering and washing the quinacridone until neutral, the wet press cake is, if desired, heated with an organic diluent under superatmospheric pressure at a temperature within the range of about 120 DEG  C. to about 180 DEG  C. or under atmospheric pressure at a temperature within the range of about 100 DEG  C. to about 180 DEG  C.  Organic diluents mentioned for (a) are ethanol, propanol, butanol, ethylene glycol, diethylene glycol, the mono-methyl, ethyl and butyl ethers of ethylene glycol and diethylene glycol monoethyl ether and mixtures thereof, and for (b) dimethylformamide, N-methyl-acetamide, diethylene glycol monoethyl ether, ethylene glycol, propanol, butanol, hexanol, triethanolamine, quinoline, dimethyl aniline, nitrobenzene, dichlorobenzene, malonic ester, phenol and diphenyl diphenyloxide. Inorganic bases which may be used are the hydroxides and carbonates of sodium and potassium and ammonium hydroxide and mixtures thereof. Examples are given. Specifications 828,052 and 868,360 are referred to.
Patent GB-399452-A (GB)
Title: Improvements in converging achromatic eye-pieces
IPC: G02B25/00
Filed: 1933-06-19
Abstract: 399,452. Eyepieces. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. June 19, 1933, No. 17386. Convention date, June 22, 1932. [Class 97 (i).] In a converging achromatic eyepiece for a prismatic telescope, one of the lens surfaces is made of non-spherical form such that the marginal thickness of the lens is increased by at least 1/30 of the lens diameter, compared to the thickness of a lens having a spherical surface which touches, and has the same vertex curvature as, the said non-spherical surface. As shown the eyepiece system consists of two components and the front surface of the rear component is of paraboloidal form. A spherical surface having a curvature equal to the vertex curvature of the paraboloid is shown in dotted lines. Constructional data are given.
Patent GB-351219-A (GB)
Title: Means for untwisting or twisting girders, rails and the like
IPC: B21D3/10
Filed: 1930-06-06
Abstract: 351,219. Twisting girders &c. YOUNG, D. T. and BOOT, G. H., Ryland Street Works, Birmingham. June 6, 1930, No. 17547. [Class 83 (iv).] A device for twisting or untwisting girders, rails &c. comprises a pair of arms a with spaced apart ends provided with apertures, jaws &c. b for engaging the girder &c. c and having operating means such as a right and left screw e, hydraulic mechanism &c. at the other ends of the arms. The arms are connected together between the ends by a pin g allowing relative rotational movement. Specification 27040/03, [Class 83, Metals, Cutting &c.], is referred to.
Patent GB-885766-A (GB)
Title: Cyclic esters of arylboronic acids and processes for their preparation
IPC: C07F5/02
Filed: 1960-05-18
Abstract: The invention comprises 2-p-tolyl-4-o-cresoxy-methyl - 1, 3, 2 - dioxaborolane; 2 - p - carboxy - phenyl - 4 - p - chlorophenyl - 4, 5, 5 - trimethyl - 1, 3, 2 - dioxaborolane; 2 - p - carboxyphenyl - 4 - o - cresoxymethy - 1, 3, 2 - dioxaborolane; cis - 2 - p - tolyl - 4 - p - nitrophenyl - 5 - dichloro - acetamido - 1, 3, 2 - dioxaborinane; 2 - p - carboxyphenyl - 5 - methyl - 5 - n - propyl - 1, 3, 2 - dioxaborinane; 16a , 17a  - p - tolylborondioxy - 9a  - fluoro - 11b , 21 - dihydroxy - 1, 4 - pregna diene-3,20-dione. Cyclic esters of arylboronic acids may be made by condensing an arylboronic acid with a 1,2 or 1,3 diol in alkaline solution and the neutralising or acidifying the reaction medium to precipitate the ester.  Alternatively, the 1,2 or 1,3 diol may be condensed with a halogen derivative of an arylboronic acid of the formula Ar B(Hal)2 preferably at elevated temperature in the presence of a substance which absorbs hydrogen halide, e.g. calcium carbonate, with or without a solvent such as benzene, toluene or acetone.  The novel cyclic esters may also be obtained by the method described in the parent Specification.
Patent GB-726186-A (GB)
Title: Improved method and apparatus for electro-decantation and its application for the separation of materials
IPC: B01D57/02
Filed: 1952-07-14
Abstract: 726,186. Electrophoretic separation of proteins. POLSON, A. July 14, 1952 [Sept. 3, 1951; Feb. 1, 1952], No. 17673/52. Class 41. A mixture of proteins in suspension in a buffer solution is separated by passage of electric current under such conditions that a constituent whose iso-electric point differs from the pH of the solution migrates to a diaphragm and becoming concentrated there sinks to the bottom of the separation chamber. A plurality of diaphragms are preferably employed spaced about 1 mm. from one another. The apparatus shown comprises electrode compartments EV1, EV2, separation compartments A3, A2, A1, through which the protein mixture is circulated from reservoir R and cooler K, and buffer chambers S1, S2, S3, S4 through which electrolyte of prescribed pH is circulated, being returned to a reservoir by an air-lift. The lighter fraction separated in A3 flows from the top of the compartment to a lower point of A2 and so on, material from the top of A flowing out into a container. Heavier fractions are withdrawn from the bottom of compartments A3, A2, A1. In a modification the apparatus is arranged so that the top ends of the electrodes EV1, EV2 are closer together than their bottom ends; by this means a temperature gradient is set up in the compartments which avoids convection currents. Examples of the application of the invention to the separation of bacterial toxines, the purification of anti-bodies, the production of purified insulin, and the purification and/or concentration of viruses are described.
Patent GB-818798-A (GB)
Title: Improvements in gate valves for the control of fluids
IPC: F16K3/18
Filed: 1956-06-08
Abstract: 818,798. Valves. SINGLETON, H. May 13, 1957 [June 8, 1956], No. 17714/56. Class 135. A gate valve in which the gate member is moved axially away from and towards its seat (or seats) prior and subsequent to its transverse movement to open and close the valve respectively, comprises a valve body 10, Fig. 2, having a pair of oppositely facing seats 16, 18 between which a pair of gate members 34 can slide. Each gate member 34 is formed with diametrically opposite lugs 42, Fig. 3, engaged in guideways 44, 46 in the valve body and connected by parallel links 36 to a valve-operating member 20 so that on opening the valve the gate members are moved away from their seats prior to their upward movement and vice versa on the valve being closed. The operating member itself is guided in a guideway 22 and at its upper end is screw-threaded to engage a nut carried on the body cover (not shown), to open and close the valve. Instead of the pair of gate members 34 a single gate member may co-operate with either the inlet or outlet seat. Instead of the screwthreaded member and nut the valve may be operated by any other convenient mechanism which may be mechanical, electrical, hydraulic or pneumatic. The guide ways 22, 44, 46 may be interrupted and a plate member 54, Fig. 5, slidden through a slot 52 in the valve body after the valve is opened so that the valve operating member, gates and other members may be removed by servicing.
Patent GB-111677-A (GB)
Title: Improvements in and relating to Rims for Wheels of Vehicles.
Inventor: FOURNIAUD LEON JEAN BAPTISTE
IPC: B60B25/20
Filed: 1917-11-30
Abstract: 111,677. Fourniaud (known as Deleon), L. J. B. Nov. 30, 1916, [Convention date]. Tyre attachments to rims.-In a rim comprising a fixed flange A and a detachable flange B, the tyre seating is formed by segments G which are expanded into the operative position by cams D carried by the transverse bolts C. The segments are fitted with centring-springs K, and are prevented from creeping by clamps J adapted to embrace the bolts. The flange B is fitted with a leather &c. packing strip F.
Patent GB-767402-A (GB)
Title: Improvements in or relating to glass houses and other house structures
IPC: A01G9/14
Filed: 1953-06-26
Abstract: 767,402. Glasshouses, huts etc.; building frames. MOTLEY, L. Sept. 10, 1954 [June 26, 1953 ], No. 17792/53. Classes 20(1) and 20(2) An arched structure for a glasshouse, house or hutment &c. comprises a skeleton framework of rods or tubes 1 secured in socket fittings 5 which are slid along a number of purlins or longitudinal tubes 2 until each complete arch of tubes 1 is spaced as required from the next arch. The spaces between are filled in by glasscontaining panels 3 which are also slid along the tubes 2 spanning the rods 1 when the latter are being slid along the tubes 2. Fig. 8 shows the connecting socket fittings 5 secured in spaced relation on the tubes 2 by clamp screws 8, the arch tubes 1 being then secured in their sockets by clamp screws 9. The ground ends of the structure comprise cast fittings 10 with gutters 4. The glass or opaque panels are surrounded by a frame 16 the top part of which is pivoted to the tubes 2 by a U-shaped hinge fitting 17, Fig. 6, secured around the rod from the inside of the glasshouse by a split pin 20. The gap between adjacent panels, Fig. 7, is bridged by inverted channel strips 25 in grooves 26 and nailed at 27 to one panel,-allowing that panel to be hinged open. The gap at the ridge, Fig. 9, is covered by a sealing strip 21 secured to the rod 2 by a fitting 22 with upturned ends housing a yielding spring 24 and meets a slotted press plate to pass over the ends during assembly. 'The structure may comprise a lean to or a multi-span structure, the latter being supported intermediately on stanchions. The structure may also form a hutment for troops with heat insulating panels. The panels may be arranged to be opened by a fluid pressure piston, the fluid being supplied through the tubes 2 to a flexible hose (Fig. 11, not shown).