baber/WOPTO huggingface dataset:
Patent GB-852412-A (GB)
Title: Coatings for metal surfaces
IPC: C09D127/06
Filed: 1957-07-10
Abstract: Compositions comprise at least 18% by weight of a resin component dissolved in an organic solvent medium consisting of at least 75% of a normally liquid aromatic hydrocarbon and 0 to 25% of a solvent selected from methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl propionate, chlorobenzene, tetrahydropyran, tetrahydrofuran, 2-nitro-propane, isophorone, cyclohexanone, dimethyl formamide, acetonitrile and propylene carbonate, said resin component comprising copolymer A, constituting 80 to 99,5% of the resin component, being a copolymer of 30 to 75% by weight of vinyl chloride and 25 to 70% by weight of vinylidene chloride and characterized by complete solubility in xylene at 25% solids and specific viscosity of 0,12 to 0,30 determined at 25 DEG C. in 0,4% solution in nitrobenzene, and copolymer B being a copolymer of (1) 60 to 95% by weight of a vinyl halide, (2) at least 0,1% by weight of aliphatic a , b -mono-olefinically unsaturated carboxylic acids or anhydrides or alkyl esters of said acids, said acids and anhydrides being present in amount up to 5% by weight with any balance (3) being vinyl esters of saturated fatty acids.  The aromatic hydrocarbon may be benzene, toluene, xylene or methyl naphthalene.  The compositions may be used for coating articles, particularly of metal, e.g. food and beverage containers. Examples describe compositions comprising vinyl chloride/vinylidene chloride copolymers and (I and II) vinyl chloride/maleic acid/vinyl acetate copolymer, toluene and methyl ethyl ketone; (III) vinyl chloride/maleic acid/vinyl acetate copolymer, xylene and methyl isobutyl ketone; (IV) vinyl chloride/monobutyl maleate/vinyl acetate copolymer, methyl naphthalene and isophorone; (V) vinyl chloride/maleic anhydride/dibutyl maleate copolymer, xylene and ethyl acetate; and (VI) vinyl chloride/monopropyl aconitate/vinyl acetate copolymer, toluene and methyl ethyl ketone.
Patent GB-625547-A (GB)
Title: Floor drain fixture
IPC: E03F5/04
Filed: 1947-08-08
Abstract: 625,547. Floor drains. JOSAM MANUFACTURING CO. Aug. 8,1947, No. 22026. Convention date, April 24, 1946. [Class 20 (iv)]  A floor fixture for embedding in a concrete floor comprises an open bowl-like structure connected by a bottom outlet to the sewer, its upper part having a loosely fitting threaded sleeve which carries the drain grating, thus allowing the grating to be adjusted to lie flush with the floor after the concrete has been poured and levelled, but before it sets. In one form, a bowl-like structure 11, preferably of cast iron, has a bottom sewer connection, 12. The inside of the upper part of bowl 11 is internally threaded to take a loose-fitting threaded sleeve 24, which is provided with an internal ledge 27, forming a support for grating 30. The grating level can thus be adjusted vertically by rotating sleeve 24 or inclined slightly by forcing a wedge between the sleeve and the bowl. On installation, the main body of the fixture is attached to the sewer so that, with the sleeve 24 in its mid-position, the level of the grating corresponds with that of the intended floor level. The floor concrete is poured and levelled and before it sets, sleeve 24 is adjusted to bring grating 30 exactly flush with the floor. The concrete around the grating is then smoothed off.
Patent GB-896870-A (GB)
Title: Improvements in sheet-feeding apparatus
IPC: B65H5/02
Filed: 1959-06-26
Abstract: 896,870. Feeding sheets. BOBST & FILS S.A., J. June 26, 1959 [June 30, 1958], No. 22078/59. Addition to 769,251. Class 100(1) In the sheet-feeding apparatus described and claimed in the parent Specification, the means for arresting the travel of the gripper bars on the chains and imparting to them the supplementary advance to move them into registered positions with the abutments is replaced by a cam 2 fixed to the shaft 1 of the chain wheels A and recessed to co-operate,with a roller 8 to prevent rotation of the shaft after the predetermined angular movement of the chain wheels, and the roller 8 is caused to impart to the cam 2, and thus to the shaft 1 and chain wheels, an additional angular movement to effect the supplementary advance of the gripper bars. The oscillating toothed sector 4, engaging a pinion fixed on the shaft 1, imparts normal rotation to the shaft. The roller 8 is on a lever 9 pivoted at 10 to a lever 15 which pivots about the shaft I. A rod 13 is pivoted at one end to the lever 9, and at the other end to a bell-crank 11 having a roller engaging a rotatable cam 6 on the main drive shaft 5. A second rod 16 is pivoted to the lever 15 and to a bell-crank 17 having a roller engaging a second cam 7 on the shaft 5. Springs 14, 16, respectively, urge the bell-cranks 11, 17 towards the cams 6, 7. In operation, after the predetermined rotation of the shaft 1 and chain wheels A, the roller 8 enters the recess in the cam 2 to stop rotation thereof. Thereafter, the lever 15 is pivoted about the shaft I to lift the lever 9 which, since the roller 8 is in the recess of the cam 2, causes an additional rotary movement of the shaft 1 and chain wheels, and the gripper bars on the chains engage with the registration abutments.
Patent GB-863739-A (GB)
Title: Diagnostic preparation for the determination of serum alkaline phosphatase
IPC: C12Q1/42
Filed: 1958-07-10
Abstract: A dry preparation, for the determination of serum alkaline phosphatase, is an alkali metal or alkaline earth metal salt of phenolphthalein phosphate, and a buffer adapted to maintain the serum pH in a range of from 9 to 11.  A magnesium salt such as magnesium sulphate may be inserted in the composition to make sure that the magnesium concentration is sufficient to activate the enzyme. Buffers employed are the sodium salt of 5,5-diethyl barbituric acid, sodium carbonate, guanidine carbonate and tris-hydroxymethylaminomethane.
Patent GB-716401-A (GB)
Title: Improvements in or relating to motor vehicle gears
IPC: F16H47/08
Filed: 1952-09-04
Abstract: 716,401. Variable-speed gearing. FEDDERN, H. A. P. Sept. 4, 1952 [Sept. 6, 1951], No. 22296/52. Class 80 (2) Variable-speed gearing for motor-vehicles comprises a hydraulic torque converter having fixed guide'blades 6, a pump wheel 3 secured to the input shaft 2 to which is also secured the sun 7 of an epicyclic gear, and a turbine wheel 5 rigid with the annulus 8 of the epicyclic gear. The planet carrier 9 is connected through a oneway clutch 12 to an intermediate shaft 13 between which and the output shaft 14 is arranged an epicyclic reverse gear comprising a sun 28 splined to shaft 13, an annulus 30 splined to shaft 14 and a planet carrier 25 adapted to be moved axially to engage a flange 37 on shaft 14 for forward drive and to engage a fixed part 36 for reverse drive. The carrier 9 is also adapted to be connected to shaft 13, upon engagement of a clutch 22, 23, through non- epicyclic gearing 15, 16, 18, 19 to give increased speed, the one-way clutch 12 then over-running.
Patent GB-229958-A (GB)
Title: Improvements in or relating to the manufacture of esters
IPC: C07C69/22
Filed: 1923-10-31
Abstract: Esters of aliphatic, aliphatic-aromatic and alicylic acids, except benzyl citrates, are prepared by treatment of a salt of the acid, preferably dry, with an alkyl or aralkyl halide in presence of an organic base, such as pyridine, quinoline or dimethylaniline.  In examples anhydrous potassium acetate is refluxed with benzyl chloride in presence of pyridine, the product diluted with benzene, filtered and the solution fractionated, or alternatively diluted with water, the salt solution separated and the benzyl acetate dried over ignited magnesium sulphate and fractionated; sodium cinnamate is heated and stirred with benzyl chloride in presence of quinoline, the resulting liquid diluted with benzene, filtered and the benzyl cinnamate separated from benzyl chloride and purified by distillation in vacuo. Specification 227,232 is referred to.
Patent GB-972605-A (GB)
Title: Semi-conductor devices and method of fabricating them
IPC: H01L23/29
Filed: 1962-06-08
Abstract: 972,605. Semi-conductor devices. MICROWAVE ASSOCIATES Inc. June 8, 1962 [June 14, 1961 (2)], No: 22393/62. Heading H1K. In a semi-conductor device comprising a semiconductor body with a wire making rectifying contact with it' an at least partially vitrified housing is bonded to the body and wire around the contact, and a rigid envelope spaced from the housing provided around it. In one arrangement a silicon PN junction mesa diode body soldered to a molybdenum or iron-nickelcobalt alloy plate 12 (Fig. 2) by gold-silicon eutectic alloy has a flexible tungsten wire or ribbon 16 bonded to the mesa by applying a paste containing glass frit around the contact and firing at 700-750 C. to form a glassy bead 19. Member 16 is attached to conductor 14 in a glass bead beforehand. The resulting subassembly is attached to wire 22 by lead-tin or lead-gold solder and glass bead fused to outer glass envelope 20 by local heating to complete the diode. The contact with wire 16 may be improved by providing the mesa withthin superposed layers of nickel and gold.' In another type of device, Fig. 8, a pointed tungsten ribbon or wire 15, silicon body 110 and the flattened end 122 of an iron-nickelcobalt alloy wire are held together solely by means of a glassy bead 119 formed as above. This sub-assembly may be mounted in a ceramic tube into the ends of which metal electrode plugs are screwed and soldered, or in a metal tube fitted with insulating plugs through which wire 121 and an electrode carrying wire 115 respectively extend. As an alternative to the latter arrangement the plug through which wire 121 extends is of metal. In Fig. 11, the subassembly is housed as shown in a terminated rectangular waveguide and functions as a mixer. It is connected between the upper wall of the guide and the inner member of a coaxial plug 162 inserted through the lower wall and carrying a stepped or tapered transition member 156. Finally, a sub-assembly consisting of a semi-conductor wafer and a wire held in contact therewith by a glass bead is mounted as shown in Fig. 10 in a rectangular waveguide. One face of the wafer is held in contact with wall 173 by the resilience of the wire which is fixed to a plug screwed in an insulating bush in the opposite wall. Specifications 951,074 and 966,238 are referred to.
Patent GB-640943-A (GB)
Title: An improved glass for forming glass to metal seals
IPC: C03C8/24
Filed: 1947-08-13
Abstract: 640,943. Glass manufacture. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 13, 1947, No. 22472. Convention date. Aug. 13, 1946. [Class 56] [Also in Group XL(a)] A glass to be sealed directly to iron or mild steel, e.g. to be used for the screen of a cathode ray tube having a mild steel conical part, has a composition within the following ranges (per cent by wt.): SiO 2 + Al 2 O 3  60-65 (Al 2 O 3  0-5), K 2 O+Na 2 O 15-20 (K 2 O 10-15), Li 2 O 3-5, and one or more alkaline earth metal oxides 10-15 ; the alkaline earth metal oxides may include CaO or MgO or may be partially replaced by CaF 2 . An example (derived from a batch wherein NaNO 3  supplies the Na 2 O and carbonates supply the K, Li and Ca oxides) is given as: SiO 2  65, Na 2 O 4.5, K 2 O 14, Li 2 O 4.5, CaO 8, CaF 2  4. Reference is also made to an iron sealing glass as described in Specification 536,362, and to a soda-lime glass as follows which may be sealed to the chrome iron alloy cone of a cathode ray tube or to a chrome iron ring welded to the end of an iron or mild steel cone: SiO 2  72. Na 2 O 17. CaO+MgO 9, Al 2 O 3  1. Specification 597,023 is referred to.
Patent GB-644878-A (GB)
Title: Improvements in or relating to advertising or display apparatus
IPC: G09F21/04
Filed: 1947-08-13
Abstract: 644,878. Changing signs. BROWN, H. D. Aug. 13, 1947, No. 22543. [Class 3(i)] An advertising drum A for mounting on vehicles or the like is rotated intermittently by a pendulum B which is suspended from a universal pivot C so as to be affected by all vibrations of the vehicle to move an arm D which extends from the pivot up and down whichever way the pendulum swings, the arm D drives a ratchet wheel E through a pawl D<SP>1</SP> to rotate the drum. The pendulum B, Fig. 1, 5, is suspended so that it can swing about two axes C<SP>1</SP>, C<SP>2</SP> at right angles to each other. The wheel E is prevented from back motion by a pawl F and is mounted on a shaft G which also carries a disc H and an arm L. The disc H pivotally mounts a weighted arm K so arranged that when the weight K passes top dead centre as shown in Fig. 8, it is flung outwards and so by gravity moves the disc H rapidly, this movement causes the arm L to move as Maltese cross N which is on the shaft 10 of the drum A to bring a fresh advertisement into view at a window in a casing P on which the drum is mounted.
Patent GB-1280133-A (GB)
Title: Radiation screening device
IPC: B23K15/06
Filed: 1971-04-19
Abstract: 1280133 Electron beam welding apparatus KRAUSS-MAFFEI AG 19 April 1971 [24 Feb 1970] 22581/71 Heading HID] The conduit connecting an electron beam welding apparatus to a vacuum pump includes X-ray shields which are movable to an inoperative position where they present minimum resistance to gas flow. In Fig. 1 the generally circular conduit is provided with rectangular recesses in which the shields 8-10 are pivoted at 7 and in which the shields may be accommodated when in the inoperative position as shown by the dotted lines. When in the operative position shown the shields leave about 1/6 of the channel cross-section free. Stop bars 18 may be provided to prevent X-rays from passing between the respective shield and the wall of the conduit. In a modification, Figs. 3 and 4 (not shown), the shields are circular and pivoted about diameters.
Patent GB-808146-A (GB)
Title: Method and apparatus for producing sheet glass
IPC: C03B13/04
Filed: 1956-07-23
Abstract: 808,146. Glass manufacture. LIBBEYOWENS-FORD GLASS CO. July 23, 1956 [Aug. 5, 1955], No. 22667/56. Class 56. In the making of plate glass, molten glass from a furnace 11 is fed between rollers 12, 13 of uniform diameter over their central portions but divergently tapered at each end to reduce the edge portions 26 of the glass 14 before annealing so that they lie below the plane of the major surface 27. The glass 14 is carried on rollers 15 through an annealing lehr 16 to grinding discs 19 and 20 which, because of the reduced thickness of the edges, contact the surfaces 27 and 28 before the edges 26, thereby obviating cracks. The invention may be used when only the upper surface is to be ground, e.g. by embedding sheets, cut from the main strip, in plaster, to present the upper face of the glass to the grinding discs, and a scraper or moving roller may be used to reduce the edge portions.
Patent GB-1407886-A (GB)
Title: Whip aerials
IPC: H01Q1/02
Filed: 1973-05-11
Abstract: 1407886 Aerials DEFENCE SECRETARY OF STATE FOR 10 May 1974 [11 May 1973] 22682/73 Heading H4A An aerial comprising a flexible rod 1 supported substantially vertically by an insulator 2 (i.e. a whip aerial) is provided with a flange 4 which is adjacent the insulator and which is in a plane substantially perpendicular to the rod. It is also provided with a conically shaped insulating shield 6 around the insulator, which extends upwardly towards the flange. As described, the aerial and the shield 6 are mounted on a base tuner 3. The flange 4, which is attached to the aerial rod 1 by means of a clamp 5, may be made of a material of low surface energy, for example, ethylene propylene polymer, or, alternatively, comprise a thin resilient sheet of a metal such as phosphor bronze or copper beryllium alloy which is covered with a material of low surface energy. The purpose of the invention is to protect the surface of the insulator 2 from ice formation thereupon as a result of sea spray when the aerial is installed on a ship such as a deep sea trawler. A heater may optionally be provided within the space 7 surrounding the insulator 2 within the shield 6.
Patent GB-1488450-A (GB)
Title: Process for the production of polyureas
IPC: C08G18/10
Filed: 1975-05-23
Abstract: 1488450 Polyureas BAYERAG 23 May 1975 [26 July 1974] 22705/75 Heading C3R A polyamide-urea of polyamide-urea-urethane which contains free carboxyl groups on the main chain is prepared by reacting an organic polyisocyanate, preferably a difunctional NCO-terminated prepolymer of M.Wt. 400-10,000, with a primary and/or secondary diamine, in the presence of a tetracarboxylic acid dianhydride and optionally a solvent, preferably acetone. The products may be rendered water-dispersible by forming salts from the free carboxyl groups by at least partial neutralization with an organic or inorganic base. Suitable primary and secondary diamines have the formula (R) n (NHR<SP>1</SP>) 2  where R represents a divalent C 2 -C 18  aliphatic hydrocarbon radical, C 6 -C 15  aromatic hydrocarbon radical, C 5 -C 15  cycloaliphatic hydrocarbon radical or C 8 -C 18  araliphatic hydrocarbon radical, R<SP>1</SP> represents hydrogen or a C 1 -C 4  aliphatic hydrocarbon radical and n is 0 or 1. The preferred dianhydrides are pyromellitic acid dianhydride and benzophenone tetracarboxylic acid dianhydride. Other suitable dianhydrides are listed. In the examples polyamide-urea-urethanes are prepared by reacting (A) an NCO-terminated prepolymer prepared by reacting either hexamethylene diisocyanate or 2,2,4-trimethylhexamethylenediisocyanate with an adipic acidhexanediol-neopentyl glycol polyester of M.Wt. 2000, with (B) pyromellitic acid dianhydride in acetone and then with (c) either ethylene diamine or 2,2-(bis-cyclohexylamine) propane. Aqueous KOH is then added and the resulting aqueous dispersion is partially or completely freed from acetone. Films are made from the dispersions.
Patent GB-1406758-A (GB)
Title: Modular furniture or like articles and modular units therefor
IPC: F16B12/24
Filed: 1973-05-14
Abstract: 1406758 Furniture frame and joints; tables; settee DIRECTIONAL INDUSTRIES Inc 14 May 1973 [12 Oct 1972] 22828/73 Headings A4H and A4J [Also in Division F2]  Furniture such as a table or a settee, Fig.6 (not shown), is constructed from a series of panels 10 of planar, T-shape or L-shape configuration which are made of plastics material and inter-connected by rod couplings engaging with snap action sockets provided in flanges formed integral with said panels, see Heading F2M for joint details and Fig.2 (not shown). The rod couplings are made of plastics or metal and the free edges of the panels are provided with closure caps.
Patent GB-598464-A (GB)
Title: Improved fibres of ethylene polymers
IPC: D01D5/08
Filed: 1945-09-05
Abstract: <PICT:0598464/IV/1> Improved fibres of normally solid ethylene polymers are produced by a process comprising extrusion of a solution of the polymer into a gaseous evaporating medium which is maintained at a temperature above the melting point of the polymer, the said gaseous medium flowing substantially in the same direction as the solution as it leaves the spinneret, withdrawing the formed fibre from the spinning cell and quenching it.  The polymer may be polyethylene itself or it may be a copolymer of ethylene in major amount with such compounds as mono-olefins (e.g. propylene, butylene), carbon monoxide, formaldehyde, halogenated olefines (e.g. vinyl chloride) vinyl ethers, ketones and esters, styrene, acrylic and methacrylic acids, their esters, amides and imides and other compounds containing >C=C< groups such as esters of maleic, fumaric and itaconic acids.  The polymer or copolymer should be free from grain, have a tensile strength greater than 2000 lbs./sq. in., and an elongation of more than 300 per cent.  The solvent may be xylene or other aromatic hydrocarbon, or a chlorinated aliphatic hydrocarbon such as ethylene dichloride or trichlorethylene.  The solution should be filtered immediately prior to spinning to remove grain.  The fibres produced are useful for bristles for rotary brushes, surgical sutures, dry-fly lines (owing to their property of floating on water) braided cords, ropes, impregnated fabrics, chemically resistant filter cloths, raincoat and tarpaulin fabrics, &c.  Artificial felt and leather can be produced by application of heat to shrink and fuse the fabrics.  In an example, an ethylene polymer is dissolved in xylene by heating at 120 DEG  C. to give a 25 per cent solution, which is dry-spun in the apparatus shown in Fig. 1.  The solution 1 is charged into the container 2 maintained at 110 DEG  C.  A removable head 24 carrying a conduit 6 through which oil may be pumped closes the container.  The polymer is forced through the filter 7 and the spinneret 5 by pressure of the oil 4 on the piston 3.  An inspection door 8 is provided so that the face of the spinneret can be cleaned.  The filaments pass through the spinning cell 9, the walls of which are heated to 150 DEG  C. by electrical heating coils 25 or other suitable means.  Air at about 80 DEG  C. enters the cell at 10 and leaves at 11.  After leaving the cell, the fibres are given a spinning finish by the roll 12 and then taken up on a take-off roll 13, from which they pass to bobbins, are stretched, twisted or steam-set as desired.
Patent GB-1124533-A (GB)
Title: Mathematical root-extraction device
Inventor: KASTEN HEINZ
IPC: G06G5/00
Filed: 1966-05-23
Abstract: 1,124,533. Linkwork. INSTITUT FUR REGELUNGSTECHNIK. 23 May, 1966, No. 22855/66. Heading F2K. The input signal 2 of a fluid flow measuring apparatus, derived from a measured pressure difference proportional to the square of the flow velocity, is modified by a compensating input S 1  from a metal bellows 8 acting through linkwork having a velocity ratio variable according to a predetermined function to produce an output movement S 2  of a lever 4 proportional to the flow velocity, this movement being converted to a pneumatic signal from which the compensating input to the bellows 8 is derived. A spring 3 connects an arm 11 of the input lever 1 to the output lever 4. The bellows 8 acts on the lever 4 through a toggle linkage 5, 6 having a fixed pivot 7, and a cam 15 on the link 5 which is in sliding contact with a follower arm 12 rigid with the lever 4. For an approximate compensation the cam 15 and follower 12 are omitted, and the toggle link (5) is rigidly secured to the output lever (4) at a pivot (7) slidable along an extension of the axis (AA) of the bellows (8) (Fig. 2, not shown). The stiffness of the spring (3) is adjustable and the distance (r) of its point of connection (17) to the lever (4) from the pivot (7) thereof is adjustable. For a linear compensation, the toggle linkage is looked rigid, or the bellows may be connected directly to the arm (11) of the input lever.
Patent GB-1062127-A (GB)
Title: Preparations of resins from petroleum products
IPC: C08F10/00
Filed: 1964-06-03
Abstract: A resin is prepared by heating a liquid hydrocarbon petroleum fraction with an ethylenically unsaturated carboxylic compound in the presence of an olefin polymerization catalyst, e.g. a Friedel-Crafts or organic peroxide catalyst.  The carboxylic compound may be a maleic, chloromaleic, itaconic, citraconic, fumaric, chlorofumaric, acrylic, methacrylic, phenylacrylic, crotonic, sorbic, cinnamic, chlorocinnamic or aconitic compound. The products obtained may be hardened by heating with metal oxides, amines or alcohols.