baber/WOPTO huggingface dataset:
Patent GB-1162938-A (GB)
Title: Extended Hydroxy-Containing Polymers
IPC: C09J103/02
Filed: 1968-03-01
Abstract: 1,162,938. Hydroxy-containing polymer/ starch hydrolysate compositions. MONSANTO CO. 1 March, 1968 [3 March, 1967], No. 10158/68. Headings C3P and C3U. A composition comprises a water-soluble hydroxy-containing polymer and up to 75% by weight, based on the total weight of the composition, of a non-crystalline starch hydrolysate having a dextrose equivalent of from 13 to 38. The polymer may be a partially hydrolysed vinyl ester homopolymer or copolymer or polyvinyl alcohol. Preferred hydrolysates are corn starch hydrolysates. They are the malto-dextrins and low conversion corn syrups. Additional extenders, e.g. urea or glycerine, may be included. The compositions may be used as adhesives and solutions of the compositions may be cast into films or used to size filaments or yarns. In the examples are used corn dextrine, white dextrin, ethoxylated potato starch, corn starch hydrolysates, sucrose, lactose, glycerine and urea.
Patent GB-222053-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F1/08
Filed: 1924-04-24
Abstract: 222,053. Couchman, A. April 24, 1924... Tobacco pipes.-In a pipe in which a partition m attached to the mouthpiece divides the bore of the stem into two passages, the stem bore a and the partition extend beneath the bowl c beyond the smoke passage d. The partition m is formed integral with, or fixed in a slot in, an aluminium or other head screwed into the mouthpiece e. The partition m is further slotted at o to form a passage for smoke and is rounded at its free end n. It may also serve as a scraper for the stem 'bore. The passage d may extend. obliquely from the bowl towards the mouthpiece.
Patent GB-793486-A (GB)
Title: An improved process for the purification of dinitroresorcinols
Inventor: GOW ROBERT STEWART
IPC: C07C201/16
Filed: 1956-04-04
Abstract: Dinitroresorcinol is purified from styphnic acid by treating such dinitroresorcinol to convert the styphnic acid therein into a watersoluble salt thereof by selective action with a reagent of alkaline reaction capable of forming with styphnic acid a water-soluble salt in a quantity of water sufficient to dissolve the salt thus formed but insufficient to dissolve substantially the dinitroresorcinol and separating the dinitroresorcinol from the resulting aqueous solution of the salt.  2 : 4- and 4 : 6-dinitroresorcinols are mentioned as starting materials. Reagents of alkaline reaction specified include magnesium oxide, hydroxide, carbonate and basic carbonate, sodium, potassium, lithium and alkyl ammonium hydroxides and ammonia.  Preferably when magnesium hydroxide is employed the amount used should not be more than is sufficient to form the acid magnesium styphnate. Examples are furnished.
Patent GB-1025636-A (GB)
Title: Dielectric embossing press
IPC: H05K9/00
Filed: 1965-03-11
Abstract: 1,025,636. Dielectric embossing. GENERAL MOTORS CORPORATION. March 11, 1965 [April 10, 1964], No. 10340/65. Heading B6J. Shields 16 and 18, to prevent the electrodes of a dielectric embossing press interfering with radio reception &c. are attached to the upper and lower press members to surround electrodes 20 and 22, Fig. 2. The upper shield 16 comprises two parallel metal plates 58 and 60 and the lower shield comprises a single metal plate. In plan view the shields form rectangles about the electrodes, as illustrated in Fig. 4 (not shown). A resilient rubber non-conductive edging 34 is fitted over the edge of the lower shield 18, and this edging is covered with a copper wire fabric 32 secured to the shield 18 with a plurality of bolts 40. When the press members are brought together, the two shields engage telescopically, as shown, and in addition complete the mains electric circuit of the embossing press.
Patent GB-596370-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01P7/06
Filed: 1944-05-31
Abstract: 596,370. Magnetrons; velocitymodulated tubes. ROLLIN, B. V., DAUNT, J. G., and WRIGHT, C. S. May 31, 1944, No. 10489. [Class 39 (i)] A closed-ended multicavity magnetron is tuned by dividing the anode block j<1>, Fig. 3, equally along the plane c' and moving the halves d', e<1> thus formed towards or away from each other so as to vary the height H of each individual resonator f<1>. The parts are divided along a plane across which no highfrequency current passes. Movement may be effected through a flexible diaphragm or bellows in the envelope wall ; or where the anode is itself part of the anode its parts are connected by a flexible envelope portion. Specification 588,185 is referred to. The Provisional Specification describes the same method of tuning applied to other discharge devices containing resonators. A rectangular cavity d, f, Fig. 1, excited by electrons passing through-slots m, n is divided along plane srqp, or' alternatively along a plane perpendicular to ab. Two shielding plates may be disposed on opposite sides of the beam so as to form two separate gaps near slots m, n respectively. A velocity-modulated tube has a resonator rs, Fig. 2, divided along the plane t, u. The magnetron in Fig. 3 may be made by soldering radial vanes into the grooves g<1> in fluted end plates f<1>, Fig. 4, and subsequently sealing on an outer cylinder. If open-ended, the end plates are subsequently turned off. The separate parts d<1>, e<1>, Fig. 3, may be made by die-casting.
Patent GB-105524-A (GB)
IPC: G04D1/08
Abstract: 105,524. Watts, C., and Howell, E. J. Nov. 29, 1916. Riveting stakes.- The tool is primarily designed for use in affixing the hands. The stake proper C is lodged in the top of a pillar A on a foot B, and the watch is held down on it by a bracket H with two padded branches I, which is in one with a sleeve F pressed downwards by a spring E below a collar D halfway up the pillar. To prevent rotation of the sleeve, a slot L therein is guided by a stud M.
Patent GB-105565-A (GB)
IPC: B60C7/20
Abstract: 105,565. Duchateau, J. L. April 7, 1916, [Convention date]. Addition to 1023/14. Spring wheels with continuous outer rigid ring and helical springs.-In a wheel of the kind described in the parent Specification, the circumferential helical spring 4 is carried by cross-pins 1, 2, of which alternate ones carried by the movable rim are mounted in ball bearings. The spring is enclosed in a substantially dust-proof casing, formed of sheet metal, carried by the rim of the wheel. Fig. 2 shows a radial section along a spoke. Fig. 3 shows a similar section intermediate the spokes. The pin 1 has ball bearings 9, 11, and is movable radially in depressions 22 formed in the rim flange 13. The pin 2 is housed in a plate 6 attached to the hub member and slidable on the plate 24. The rim 18 is brazed to one or both of the side plates 17, which slide on the hub member 15. A cap 16 is fitted on the outer plate 17, and a packing-ring 14 is provided on the other side.
Patent GB-716149-A (GB)
Title: Improvements in turbine blade cooling systems
IPC: F01D5/08
Filed: 1952-04-28
Abstract: 716,149. Gas turbine plant. GENERAL MOTORS CORPORATION. April 28, 1952 [May 15, 1951], No. 10574/52. Class 110(3) A turbine wheel 16 encloses a chamber 42 adapted to contain cooling fluid and communicating with closed passages 40 in the blades 38 and with a heat exchanger or condenser 46 formed with and around the turbine shaft 22 at a location remote from the wheel and subject to a flow of cooling gases during operation. Communication with the condenser is by way of axial passages 56, 66 in the shaft. A supercharger impeller 24 is arranged on the shaft and has an inlet 28 surrounding the condenser. Tubes 68 with nozzles 72 are mounted in the chamber 42 in the ends of the passages 66. The turbine is fed through nozzle blades 37 and heat shields 34 are arranged between the turbine and the compressor. The shaft is mounted in a bearing 12. The cooling medium may be distilled water, sulphur, mercury, phosphorous or sodium.
Patent GB-105886-A (GB)
IPC: B24B3/24
Abstract: 105,886. Best, I., and Best & Co., I. Jan. 26, 1917. Disk apparatus. - Apparatus for grinding circumferential clearance behind the cutting- edges of groove twist drills comprises a mandrel or feed screw n for holding and simultaneously traversing and rotating the drill x, a support p for the drill which takes the thrust in grinding, and a peripheral grinding-disk f, adjustable towards and from the drill. The disk may be carried on a slide, or, as shown, it may be supported in one arm of a double-armed rocker d, the other arm of which is fitted with an adjusting- screw j. The drill support is in the form of a tube p with a part cut away to expose the drill to the disk. The drill is secured to the mandrel by a chuck o which is arranged to be turned on the mandrel to present first one groove of the drill and then the other to the disk. The drill groove may be positioned in relation to the drill by means of a finger t<2> on a rotatable head provided with a stop which is to be brought up against another stop on an angularly adjustable cap s on the pillar r<2>. Specification 14198/15 is referred to.
Patent GB-171664-A (GB)
Title: Improvements relating to amplifiers for telephone circuits
IPC: H03F3/64
Filed: 1921-04-11
Abstract: 171,664. Soc. Industrielle des TÚlÚ- phones (Constructions Electriques, Caoutchouc, CÔbles). Nov. 18, 1920, [Convention date]. Thermionic relays and repeaters.-Thermionic two-way amplifiers for telephone systems are provided with a balancing-valve so arranged that the amplified plate current does not re-act on the grid circuit of the amplifier. Fig. 2 shows one arrangement employing a single amplifying-valve. Telephone currents originating in either line L1L1<SP>1> or L2L2<SP>1> produce a current through a shunt across both lines, comprising a transformer primary coil p1 and an adjustable resistance R. The secondary coil s1 is connected between grid andfilament of the amplifying valve A2, the plate circuit of which includes a battery B, shunted by a condenser C2, and a transformer primary p2. The secondary s2 of this transformer is in series in the line L1, L2, and supplies amplified current to the line. The invention comprises means for preventing the potentials induced in the secondary s2 from producing a current in the shunt coil p1 which would react on the grid circuit and might produce howling or a neutralizing effect. With this object a balancing-valve A1 has its plate connected to one end of the resistance R through a battery B shunted by a condenser C1, and its filament connected to the other end of the resistance. The grid of the valve A, is connected to the end of the coil s2 opposite to that connected to the shunt p1, R. The voltage induced across the coil s2 tends to produce a current through the line L, L1<SP>1> and through the parallel paths L2<SP>1>, L2 and R, p1. The voltage across coil s2 also affects the potential of the grid of the valve A1 and varies its plate current, and part of this current flows through the coil p1 and through the two lines in parallel. The two currents through the coil p1 neutralize each other and thus prevent reaction on the grid of the amplifier A2. The Specification gives a mathematical analysis of the working of the apparatus and shows that the balancing effect is obtained if a1z1 = (b, + <I>R)z2, where z1, z2 are the impedances of the lines, R the shunt resistance, and a1, b, are constants of the valve A1, the plate current of this valve being given by the expression a1 u + b1 v where u and v are respectively grid and plate potentials. Adjustment may be made by varying the resistance R, or by varying the filament temperature or the voltage of the plate battery. In a modification employing a separate amplifying-valve and a separate balancing-valve for each direction of transmission, the line is divided and an artificial line is connected across the points q, o for each section of the line. The output circuit of each amplifying valve is inductively coupled to the coil s2 of the other line.
Patent GB-299335-A (GB)
Title: Improvements in and relating to armour-insulating the busbar networks of high tension alternating current power stations
IPC: H02G5/06
Filed: 1927-04-20
Abstract: 299,335. White, A. E., (Sargent & Lundy Inc.). April 20, 1927. Boxes, cases, a n d covers for couplings.- A method of insulating bus-bar networks including their r associated switching apparatus, transformers, and couplings consists in enclosing the entire network from the generators to the connection with the distribution cables, in grounded metallic sheathing filled with liquid insulation. This sheathing is of low magnetic permeability such as manganese steel. The conductors are wrapped in paper tape &c. and the liquid insulation is preferably stationary or circulating petroleum. The pipes and boxes are formed mainly of standard parts which may be assembled in various ways to meet various conditions. Figs. 3 and 4 show a typical assembly, the bus-bar 39 being loosely supported by ring insulators 50 in the pipes 16 which are attached by flanges 40 to one another and to the junction boxes. Each junction box comprises angle pieces 43 welded together to form a frame which is closed by apertured plates 45 and solid plates 46 as the conditions require. In Figure 4 the riser 52 connects two bus-bars at right angles to each other and at different levels. The housing, which may be divided by liquid tight joints into various sections, is filled with an oil dielectric such as petroleum, which may be circulated by pumps if necessary. Fig. 7 shows a junction box in which is a current transformer 53 having a lead 10 to an ammeter.
Patent GB-499131-A (GB)
Title: Improvements in copying photographically multi-colour pictures
IPC: G03C7/18
Filed: 1937-04-14
Abstract: 499,131. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) April 14, 1937, No. 10621. [Class 98 (ii)] In copying photographically subtractive multi-colour pictures with coloured printing light produced with the aid of colour filters, the filters are coloured by dyestuffs which have the same absorption of light as the dyestuffs of the master image. The same dyestuffs, or dyestuffs which resemble the dyestuffs of the master image with respect to the groups which determine the absorption of light, or dyestuffs of different chemical composition but having essentially the same absorption, may be used. The master image and copies may be produced by colour development, the silver dyestuff bleaching-out process or the silver anti-diazotate process. Multilayer material for colour development comprises, on one or both sides of a support, silver halide emulsions of different spectral sensitivity and containing colour formers fast to diffusion. In an example, the master image contains an azomethine dyestuff formed from p-dimethylaminoaniline and 1-phenyl-3-methyl-5-pyrazolone and also containing sulpho groups enhancing solubility and residues enhancing fastness to diffusion, whereas the corresponding dyestuff in the filter is without the two lastmentioned groups. The copy may be on similar to or different from that used for the master image, and may be developed normally or by the reversal process. An incorrect tone due to preponderance of the colour in one of the component images may be corrected by arranging in front of the light source or between the master image and the copy a filter having a colour tone compensated for the incorrect tone and having the same absorption as the dyestuffs of the master image. The illumination of the master image may be successive through single filters or simultaneously through several filters. One or several copying light colours may be simultaneously or successively strengthened or weakened. Specifications 436,587, 458,400, 465,823, 468,946, 479,838, 481,501, 483,000, 484,698, 488,048, 488,853, 489,093, 489,274, 491,958, 491,959, and 492,523 are referred to.
Patent GB-590978-A (GB)
Title: Improvements in or relating to profile cutters, more particularly for milling toothed wheels by the dividing process
IPC: B23F21/14
Filed: 1945-04-27
Abstract: 590,978. Milling-cutters. SOC. ANON. A. SAURER. April 27, 1945, No. 10693. Convention date, Dec. 14, 1943. [Class 83 (iii)] A profile milling-cutter, particularly for milling toothed wheels by the indexing method, consists of two toothed discs 1, 2 each having a bore 7 and a keyway 8 and assembled together so that each tooth 5a of one disc is located adjacent to an untoothed portion of the other disc. The gap between teeth is greater than the peripheral length of the teeth to provide spaces for the discharge of cuttings. The cutting-edges have positive rake as indicated at 9.
Patent GB-1397864-A (GB)
Title: Apparatus for regulating the drive of a platen press
IPC: B65H29/04
Filed: 1973-03-06
Abstract: 1397864 Platen presses J BOBST & FILS SA 6 March 1973 [14 March 1972] 10699/73 Heading B6C In a sheet-fed platen press in which the sheets are carried on gripper bars attached to endless chains an apparatus is provided for maintaining the chain under tension. This apparatus comprises a source of pressurized hydraulic or pneumatic fluid 18, 17, cylinders 11, 12, connected with the source, a piston slidable within each cylinder and connected to the associated chain 1, 2, to apply a force to the chain whereby the tension of the chain is proportional to the pressure of the fluid and means for maintaining the pressure at a predetermined level whereby a constant tension is applied to the chain. A check valve 14 is provided to allow the pistons to move to the right when the chains are under increased tension. In a second embodiment the valve 14 is replaced by a cam controlled device.
Patent GB-898149-A (GB)
Title: Improvements in dress vests
IPC: A41D1/04
Filed: 1960-03-25
Abstract: 898,149. Waistcoats. EMMS, C. March 24, 1961 [March 25, 1960], No. 10738/60. Class 141 A dress vest or waistcoat comprises front portions 5 secured to each other and supported on the wearer by an elasticized back portion 2 having hooks 3 engageable in eyes 4, points 9, collars 8 and pockets 10 and is shaped by darts 12, 13. The vest may have a third dart 14 under each collar,inside pockets, removable stiffeners and rubbersurfaced pads to maintain the vest in position on the wearer. Specifications 431,370, 450,457 and 480,682 are referred to.
Patent GB-1467621-A (GB)
Title: S-carboxymethyl-thiono-di-thiolphosphoric-phosphonic-acid esters and esteramides their preparation and their use as insecticides
IPC: A01N57/20
Filed: 1975-03-14
Abstract: 1467621 Pesticidal organophosphorus compounds; bromo ether acid esters BAYER AG 14 March 1975 [15 March 1974] 10743/75 Headings C2P and C2C Novel compounds of Formula I where R 1  is phenyl, C 1-6  alkoxy or alkylthio, C 1-5  alkyl or alkylamino, alkoxyalkoxy with 1 to 5 C atoms in each alkyl moiety or C 2-5  alkenylamino, R 2  is C 1-6  alkyl, alkoxyalkyl with 1 to 5 C atoms in each alkyl moiety or C 5-7  cycloalkyl, R 3  is phenyl, cyclohexyl, C 1-7  alkyl C 1-5  haloalkyl or carbalkoxymethyl, aralkyl or alkoxyalkyl with 1 to 5 C atoms in each alkyl moiety, R 4  is C 1-5  alkyl or is phenyl optionally substituted by one or more substituents selected from halogen, CN, NO 2  and C 1-4  alkyl and alkoxy and X is O or S, may be prepared by reacting a compound of Formula II where M is alkali or alkaline earth metal or NH 4  with a compound of Formula III where Hal is halogen. The intermediates of Formula III, where Hal is Br, may be prepared by reacting the corresponding non-halogenated ester either with N- bromo-succinimide in the presence of benzoyl peroxide or with bromine in the presence of U.V. radiation. The compounds of Formula I have insecticidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-385814-A (GB)
Title: Improvements relating to sliding roofs for motor vehicles
IPC: B60J7/185
Filed: 1932-04-15
Abstract: 385,814. Vehicle opening-tops. BISHOP, W. H., 48, Moor Street, Birming- ham. April 15, 1932, No. 10785. [Class 108 (i).] In locking means for sliding panels in vehicle roofs of the type in which laterally movable locking rods are operated by a centrally situated rotatable handle the rods are arranged to operate members adapted to engage over and lock against longitudinal guides of channel-section with the flanges directed outwardly. Laterally extending bars f, Figs. 1 and 3, are coupled to pins g on a plate h secured to a short vertical spindle having a controlling handle k rotation of which causes the bars f to approach, or recede from, the side edges of the roof opening. The turned-up ends e are adapted to contact with the cranked portions d of pivoted hooks the ends b of which are adapted to grip the guides a to lock the sliding panel. In another form the short vertical spindle may be provided with a disc having spiral grooves engaged by cranked ends of the bars so that rotation of the disc in one or the other direction causes the bars to lock or unlock the panel. The sides of the roof opening may be provided at the front ends with ramps m, Fig. 5, to cause the panel to ride up and over the upstanding flange a at the front of the roof opening.
Patent GB-1469230-A (GB)
Title: Preparation of chemical c-mpounds
IPC: C09K11/08
Filed: 1974-06-04
Abstract: 1469230 Luminescent materials DEFENCE SECRETARY OF STATE FOR 4 June 1974 [6 March 1973] 10786/73 Heading C4S [Also in Division C1] A method of preparing a compound of formula E 2 GL 3  where E is one of Ca, Sr, Ba, G is one of Zn, Cd, Hg and L is one of S, Se, Te comprises treating in an inert atmosphere a compound EL with a compound GL by heating to produce at least some compound of the above formula. Preferably, EL and GL are in a 2 : 1 molar ratio. When the compounds are phosphors, activators and coactivators may be included, and the phosphors used in c.r.t.s and electroluminescent devices. Reference is made to devices which exhibit fluorescence (e.g. by U.V. or X-ray excitation and those which cathodoluminesce. Activators may be Mn or one or more (e.g. two or more) rare earths, e.g. Er. The phosphor is preferably particulate and Cu coated. Preparations of starting materials and final products are detailed and reference made to Specification 1,449,602. ZnS for example produced by precipitation from Zn acetate by thioacetamide addition yields only a few p.p.m. of Cd, Bi, and In. α or # form ZnS may be used. Metallic sulphides electroluminesce if doped with Mn and Cl for instance and Cu coated as in Specification 1,314,522. 0À5% Mn may be added to Ba 2 ZnS 3  from an ethanol solution which is evaporated, the mixture being fired at 800-900‹ C. In the Figure, phosphor particles are dispersed in a translucent matrix, e.g. polymethylacrylate, to form layer 10 between tin oxide strip 14 and evaporated Al film 18. The device is treated by a forming process as in Specification 1,300,548.
Patent GB-1214673-A (GB)
Title: Improvements in or relating to door closers
Inventor: TREDWELL GERALD LESLIE
IPC: E05F3/10
Filed: 1968-03-06
Abstract: 1,214,673. Spring door closer with check device. JOSIAH PARKES & SONS Ltd. 4 March, 1969 [6 March, 1968], No. 10806/68. Heading E2M. [Also in Division F2] A spring door closer with hydraulic piston- and cylinder check means has provision for relieving excess pressure which may build up inside the cylinder at high temperatures. Thus within the cylinder is provided a readily deformable tubular member 29 made e.g. of polyethylene, having an open end 32 which is secured to and closed by part of the piston and cylinder assembly e.g. a spigot on the piston, and a closed end 30, thereby forming an air (or other gas) filled chamber sealed from the hydraulic fluid which substantially fills the rest of the cylinder. The tubular member 29 may have an eccentric bore to facilitate its collapse under pressure. The spigot may be hollow, the hollow communicating with the interior of the tubular member to provide a larger sealed gas-filled chamber.