baber/WOPTO huggingface dataset:
Patent GB-819374-A (GB)
Title: Coating compositions
IPC: C14C11/00
Filed: 1956-09-18
Abstract: Compositions comprising aqueous dispersions of (1) ammonium or volatile amine salts of average molecular weight 500 to 5000 of approximately 1:1 mol. ratio copolymers of maleic anhydride and branched-chain olefins or hydroxysubstituted olefins having 4 to 10 carbon atoms; (2) water-insoluble ethylene oxide condensates of higher alkylphenols containing an average of 1 to 5 oxyethylene units and in which the alkyl groups have 8 to 18 carbon atoms or methyl or ethyl ethers of such condensates: and optionally (3) ammonium or volatile amine salts of copolymers of at least one of acrylic, methacrylic and itaconic acids with at least one ester thereof and containing 3 to 20 per cent of salt units calculated as the ammonium salt, are used as coating compositions.  Specified olefins are isobutylene, isoamylene, branched-chain hexenes, diisobutylene, dipentene, limonene, terpineol and dicyclopentadiene.  Specified volatile amines are methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, isopropylamine, morpholine, piperidine and pyrrolidine.  Specified esters are those of methyl, ethyl, isopropyl, propyl, n-butyl, t-butyl, sec.-butyl, amyl, hexyl, cyclohexyl, octyl, t-octyl, decyl, dodecyl, hexadecyl and octadecyl alcohols.  Specified phenols are n-octyl, dodecyl, tetradecyl, hexadecyl and octadecyl phenol.  Pigments and extenders, e.g. white lead, zinc oxide, titanium pigments, lithopone, barium sulphate, calcium carbonate, silica, talc, mica, clays, iron oxide, carbon black, cadmium sulphide, toluidene red, lithol toner, maroon toner, chrome orange, chrome yellow, Hansa yellow, chrome green, phthalocyanine green and phthalocyanine blue, may be incorporated, preferably in highly viscous dispersions and the proportion of water thereafter adjusted if desired.  When hydrophobic pigments are used a small amount of a water-soluble wetting agent, e.g. sodium lauryl sulphate, sodium dodecylbenzene sulphonate and sulphonated or unsulphonated alkylphenoxypolyethoxyethanols having 8 to 18 carbon atoms in the alkyl group and 7.5 to 50 oxyethylene units, may be added.  The fluidity of pigmented dispersions may be increased by adding a small amount of a water-soluble alcohol, e.g. methanol, ethanol, isopropanol and 2-ethoxyethanol.  Copolymerization may be effected in organic solvents, e.g. xylene and dioxane, in the presence of an initiator, e.g. benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide and tert-butyl perbenzoate, and the product isolated by distilling off the solvent and unreacted monomer or by precipitation and filtration.  Homogeneous copolymers may be obtained by controlling the polymerization conditions or by fractionating the product.  They may be converted to salts by adding ammonium hydroxide or amines to the copolymer dispersions before or after the addition of the phenol derivative. The dispersions may be applied by dipping, roller coating, brushing or spraying to metals, glass, wood, paper, leather, textile fabrics and felts, linoleum, floors, asphalt, tiles, stone, cement and concrete.
Patent GB-136516-A (GB)
Title: Improvements in or relating to Electrical Fuses.
IPC: H01H85/20
Filed: 1918-12-12
Abstract: 136,516. Cable Accessories Co., Reeves, F. H., and Crawford, A. Dec. 12, 1918. Fusible cut-outs. - A fuse-wire of the type involving a base or shield carrying or appertaining to stationary contacts and a part which causes the fuse-wire to converge towards the base, has an integral box-like projection in which a partition l causes the fuse-wire portions to converge, and into which the fuse-wire pass through perforations k in the walls of the box-like projection in the region where they join the holder. A recess h is provided in the base or shield to accommodate the projection, and this recess has extensions m which afford ventilation. Specification 136,605 is referred to. The Provisional Specification also describes stationary contacts in the base, which form the subjectmatter of the above-mentioned Specification.
Patent GB-464424-A (GB)
Title: Improvements relating to roller-blind shutter cameras
IPC: G03B7/04
Filed: 1935-10-17
Abstract: 464,424. Photographic cameras. ZEISS IKON AKT.-GES. Oct. 17, 1935, No. 28749. Convention date, Oct. 17, 1934. [Class 98 (i)] A single knob feeds the film forward in a photographic camera, winds up the shutter, adjusts the resistance of the photoelectric exposure meter, and sets the exposure time in accordance therewith, a releasable coupling being provided between the knob and the film feed to allow adjustment of the resistance without actuation of the said film feed. The knob 1 is connected through a coupling 2 to a part 21, gears 3, 4 and a film spool 5, and through the part 20 and a coupling 11 to gear wheels 9, 10, the latter of which moves as a sliding resistance in the circuit of the photo-electric exposure meter. When the knob 1 is pressed down against the action of the spring 17, the coupling 11 is engaged and the wheels 9, 10 can then be rotated without rotation of wheels 3, 4, 7, 8. A pin 6 on the wheel 9 and a stop 6a on the wheel 7 are thereby separated. When the knob is released, the couplings 2, 15 are engaged, the knob being then coupled to the film feed 3, 4 and the wheels 9, 10. When the knob is rotated. the wheels 9, 10 move alone until the pin 6 and stop 6a engage and drive wheels 7, 8 to wind up the shutter blinds. The shutter is released by a press button 12. which actuates a pivoted lever 13 to move a pin 14, and displace the pin 6 from engagement with the stop 6a. A friction coupling is proved between wheels 3, 4.
Patent GB-756926-A (GB)
Title: Improvements in and relating to electric ignition apparatus
IPC: F02P15/00
Filed: 1952-11-14
Abstract: 756,926. Ignition systems. GENERAL ELECTRIC CO. Nov. 14, 1952 [Nov. 15, 1951], No. 28801/52. Class 7(4) In an ignition system comprising an auxiliary and a main capacitor 2 and 1, respectively, a unidirectional electric-current supply connected to charge the capacitors, a pair of step-up transformer 11, 11a each having a low-voltage primary winding 12, 12a and a high-voltage secondary winding 10, 10a, one end of each secondary winding being connected to a separate terminal of the igniter 13a whilst the other ends of these windings are joined through a series circuit including a spark-discharge device 9 and the auxiliary capacitor 2 which is in parallel with the main capacitor 1, the primary windings 12, 12a are arranged in parallel and connected across the series circuit whereby discharge of the auxiliary capacitor 2 through the primary windings triggers the main discharge circuit through the secondary windings. The capacitors 1, 2 are incrementally charged through auto-transformer 4 and rectifier 3 and upon capacitor 2 attaining a value of 3-3.5 kilovolts for example the sealed discharge device 9, which may be gas-filled, breaks down and the primaries 12, 12a are energized. The discharge is of a high-frequency nature. A current limiting resistor 5 is connected in series with the auxiliary capacitor 2, which resistor also serves to prevent discharge of the main capacitor through the primaries 12, 12a to earth after the device 9 has ionized. The plug 13a may be replaced by a pair of single electrode plugs and the transformers are so disposed that the voltages applied to the plugs are of opposite polarity. Specification 637,286 is referred to.
Patent GB-833815-A (GB)
Title: Piston
IPC: F16F9/36
Filed: 1957-09-12
Abstract: 833,815. Pistons. SZIGETI, E. Sept. 12, 1957 [Sept. 28, 1956], No. 28808/57. Class 122 (1). A piston packing comprises two superimposed sets of ring segments 3 located in a peripheral groove of stepped form consisting of two sets of axially-offset portions 8, with those of one set partly overlapping those of the other set and each of such portions receiving one of the ring segments 3; the ends of the lands 11 of each groove portion form abutments for the ends of the ring segments. The segments 3 may be urged outwardly by arcuate springs or by springs of the corrugated form shown in Fig. 4. The widths X of the lands 11 is less than the widths Y of the groove portions and of the segments 3, the overlapping faces 9 of which make close contact. The segments may be cut from cast metal rings or made of sintered iron, or of plastic material.
Patent GB-722640-A (GB)
Title: Egg lifter
IPC: A47G21/10
Filed: 1952-11-15
Abstract: 722,640. Tongs. HAYWOOD, G. J. Nov. 13, 1953 [Nov. 15, 1952], No. 28875/52. Class 61 [Also in Group VI] An egg-lifter comprises an oval-shaped container consisting of two longitudinal half-sections 1, cut away at the bottom ends 2 so that when placed together forming an egg-shaped container they form an oval-shaped aperture, and a U-shaped handle 3 so attached at adjacent bottom corners to the half-sections that, when the sections are separate, their tops are inclined inwards. Thus, when an egg is to be placed, e.g. in an egg cup, pressure is slightly released on the handle and as the tops incline inwardly they remain together while the oval aperture opens and forms a circular aperture through which the egg falls. The sections 1 have holes 4 for drainage and may be made of wire or plastic.
Patent GB-1129537-A (GB)
Title: Improvements in or relating to processes for the production of semiconductor arrangements
IPC: H01L21/762
Filed: 1966-06-28
Abstract: 1,129,537. Semi-conductor devices. SIEMENS A.G. 28 June, 1966 [29 June, 1965], No. 28904/66. Heading H1K. An integrated circuit is produced by depositing an insulating carrier layer on one face of a wafer of semi-conductor material, reducing the thickness of the semi-conductor wafer, subdividing the semi-conductor wafer into at least two regions, and processing each of these regions to form an electrical component. The subdivisions of the semi-conductor wafer may be achieved either by diffusing an impurity of the opposite conductivity type into the areas between the regions or by removing these areas. In a first embodiment, Figs. 1 to 6 (not shown), a disc of silicon is polished, a thick layer of SiO 2  is deposited on one face, any oxide deposited on the opposite face is removed by etching, and the surface of the thick oxide layer is lapped parallel to the exposed face of the silicon disc. The thickness of the silicon disc is reduced by lapping, polishing and etching, and the surface is oxidized and photomasked to expose frame-shaped areas into each of which is diffused an impurity to divide the wafer into a plurality of isolated regions. The surface of the semi-conductor layer is oxidized and components are produced in the isolated regions. In a second embodiment, Fig. 7 (not shown), instead of the diffusion step grooves are etched through the silicon wafer to divide it into islands. The grooves may also be produced by sandblasting. In modifications, Figs. 8 and 9 (not shown), each isolated island is provided with an underlying higher conductivity layer by epitaxial deposition on, or diffusion into, the surface of the silicon wafer before deposition of the oxide layer. It is stated that SiO 2  may be epitaxially deposited on a silicon wafer by heating the wafer to a temperature of 1180 to 1280 C. in a gaseous mixture of H 2 : SiHCl 3 : CO 2  or H 2 : SiCl 4 : CO 2  in which the molar ratio of silicon compound to hydrogen is less than 1% and the molar ratio of CO 2  to H 2  is several per cent, for example three times the molar ratio of silicon compound to hydrogen. The semi-conductor material may also be Ge or an A III B v  compound.
Patent GB-1471983-A (GB)
Title: Polymeric acetals
IPC: C08G65/34
Filed: 1974-06-28
Abstract: 1471983 Polymeric acetals OTDELENIE INST KHIM FIZIKI AKAD VSES N I INST SINTETICHE KAUCHUKA IM AKAD S V LEBEDEVA and KARAGANDIN ZAVOD SINTETICHE KAUCHUKA IM XXIII SIEZDA KPSS 28 June 1974 [28 June 1973] 28920/74 Headings C3R and C3P Polymeric acetals containing urethane, urea or amide groups of the formula wherein R is alkylene or a radical obtained after the removal of OH end groups from a polybutadiene glycol, X is -NH-CO-O-, -NH-CO- or -NH-CO-NH-, X<SP>1</SP> is -NH-CO-O-, -NH-CO-, -NH-CO-NH- or is absent, R<SP>1</SP> is an alkylene, arylene or aralkylene radical or is absent if X<SP>1</SP> is absent, R<SP>11</SP> is an alkylene, aralkylene, oxaalkylene, cycloalkylene or arylene radical, A is either absent or has the formula wherein R<SP>111</SP> is a radical obtained after removal of OH end groups from a polymeric diol having a M.W. of 500 to 5000, and n is the degree of polyaddition and is equal to from 10 to 300 may be prepared by a polyaddition reaction between either a diol of the general formula or a mixture of the diol with a polymeric diol having OH end groups and a M.W. of 500 to 5000 and a divinyl ether of the general formula in the presence of an acid catalyst. The diol (III) may be 2,4-xylylene-bis-(2-hydroxyethyl)-  carbamate, bis - (2 - hydroxyethyl) - carbamate, dimethylol urea, diethylol urea, N,N<SP>1</SP>-diethylol succinamide, N,N<SP>1</SP>-dimethylol adipamide, N, N<SP>1</SP>-dimethylol sebacinamide, N,N<SP>1</SP>-diethylol oxalamide, N,N<SP>1</SP>-diethylol sebacinamide or N,N<SP>1</SP>- dimethylol terephthalamide. The divinyl ether (IV) may be divinyl oxymethylene, the divinyl ether of ethylene glycol, diethylene glycol, triethylene glycol, hydroquinone or 2,2-diphenylolpropane, 1,4 - divinyloxynaphthalene, p,p<SP>1</SP>- divinyl hydroxydiphenyl or 1,4-divinyloxycyclohexane. When a polymeric diol is used it may be polybutadiene glycol, polyisoprene glycol, a polyester or a polyether. Suitable acid catalysts are sulphuric acid, hydrochloric acid, phosphoric acid, p-toluenesulphonic acid, boron trifluoride, tin tetrachloride or a complex of the acids with an organic base. The polymeric acetals may find application as synthetic rubbers, elastomers, adhesives, films, fibres or coatings.
Patent GB-304849-A (GB)
Title: Method of and apparatus for producing strip material of metal
IPC: B21B13/00
Filed: 1927-10-31
Abstract: 304,849. Beatty, W. E., (Bell Telephone Laboratories, Inc.). Oct, 31, 1927. Cold-rolling.-Strip metal, particularly the ironnickel alloy known as Permalloy for the continuous inductive loading of alternating current conductors, is made by performing wire to strip form and then accurately sizing the strip by cold-rolling. The preformed strips 10 are supplied from spools 21 and fed through guides 23 to edge rolls 26, Fig. 5, having a series of passes so that the rolls may still be used when one or more of the passes has become worn. The strip is guided between the rolls 26 by idle rolls 27. The rolls 26, 27 are mounted in carriages which are adjustable within a fixed frame by micrometer screws. The laterally sized strips pass over channelled guide rollers 35 to grooved guide blocks 39 which are secured to the machine frame and have cover plates 43 secured thereto by cam levers 52 the cover plates being provided with blocks which press upon the strips under the action of leaf springs to tension the strip. Rolls 12 adjustable against the pressure of interposed springs 20 by screws 19 size the strips for thickness, the strips then passing by way of a grooved guide-block 53 and guide rolls 56 to spools 57 on which they are uniformly wound by distributing fingers 59. Specifications 184,774 and 189,075, [both in Class 36, Electricity, Conducting &c.], are referred to.
Patent GB-926963-A (GB)
Title: Process for making a printed circuit
Inventor: PARKINSON NOEL PERCIVAL HENRY
IPC: H05K3/20
Filed: 1959-08-25
Abstract: 926,963. Switch contacts. VACTRIC (CONTROL EQUIPMENT) Ltd. Aug. 16, 1960 [Aug 25, 1959], No. 29048/59. Class 38 (5). [Also in Group XXXVI] A printed circuit, for example a switch plate having the conductors embedded in an insulating base such that the switch plate has flush-bonded conducting and insulating parts, is made by positioning the integrally connected conducting parts against a working surface, the conducting parts being spaced from each other in a predetermined manner, forcing insulating material between the conducting parts into contact with the working surface, and finally removing the conducting material between the conducting parts. In its final form the printed circuit comprises segmental conducting areas 11 spaced from each other by segmental insulating areas 12, the areas 11, 12 being arranged in the form of an annulus 13. Internally and externally of the annulus 13 are insulating areas 14, 15 respectively. A rectangular sheet of copper 10 is covered with a layer of resist material except for the segmental insulating areas 12, the latter areas then being etched away so as to form holes 18 in the copper. The areas 14, 15 are then covered with a layer of resist material before plating the areas 11 with a layer 21 of conducting material, e.g. rhodium, gold or silver, the resist layer subsequently being removed. At this stage one or more conductors may be arranged on the unplated side 22 of the sheet 10 ; these conductors may be constituted by strips of copper foil which are soldered to the unplated side 22 and insulated from the parts of the copper sheet which they cross. The unplated side 22 is coated with an adhesive layer and the printed circuit 24 with this surface uppermost is placed between steel plates 25, 26 covered with a suitable release agent and between which is resin impregnated material 27. This assembly is then placed between the upper and lower heating plates 28, 29, sheets of paper 30 being interposed between the plates 26, 28 and 25, 29 respectively. After a heated press cycle, the printed circuit assumes the form shown in Fig. 7A. As a result of the pressing operation the impregnated material 27 flows into the holes 18 and gaps 21<SP>1</SP> to form the insulating areas 12 and is also formed into an insulating layer 31 on the unplated side 22 of the sheet 10. The copper in the areas 14, 15 is then completely etched away, the annulus 13 being covered by resist layer 32 during this operation.
Patent GB-417281-A (GB)
Title: Improvements in or relating to systems for automatically stopping a vehicle in the event of death or fainting of the driver
IPC: B60K28/06
Filed: 1933-10-20
Abstract: 417,281. Controlling motor vehicles. CHARLES, M., 217, Boulevard St. Denis, Courbevoie, Seine, France. Oct. 20, 1933, No. 29103. Convention date, Oct. 28, 1932. [Class 79 (v).] Release of a handle in the event of incapacitation of the driver of a motor vehicle closes an electric circuit whereby the engine or motor is stopped and the brakes are applied, the circuit being automatically broken when the braking pressure reaches a predetermined value. The circuit may also be closed by a passengers' emergency push-button. In the construction shown, the brakes are applied by an electricmotor which operates the brake pedal v through a reducing-gear including a screw-and-nut device r. Interposed between the nut rand the pedal is a bellows t filled with liquid and to it is connected a bellows x adapted to actuate a normally spring-closed switch h arranged in the circuit of the motor f. A switch m is normally held open by the driver and a switch e operated by a centrifugal device driven by an axle of the vehicle is closed when the vehicle is moving. Thus if the switch m is released when the vehicle is moving, the circuit through the motor f is completed and the pedal v is operated to apply the brakes. When the force applied to the brakes, transmitted through the bellows t is sufficient to overcome the spring i acting on the switch h this switch is opened but the brakes remain applied since the screw device r is not reversible. Also when the circuit is completed a coil actuates a trip-lever y which cuts off the fuel or power supply of the vehicle engine or motor, this lever remaining in the operated position when the circuit is re-opened. The circuit may also be closed by the operation of a passengers' emergency push-button p actuating a switch trip-lever o.
Patent GB-462188-A (GB)
Title: Improvements in gun mountings for aircraft
IPC: F41A27/30
Filed: 1935-10-22
Abstract: 462,188. Aircraft gun mountings. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and PARKER, H. G. Oct. 22, 1935, No. 29120. [Class 92 (i)] Relates to mountings of the kind in which the gun is attached to a carriage at the top of a post b, Fig. 3, universally jointed at the bottom e to the floor c of the cockpit, the carriage running on a track g extending round the cockpit opening. According to the invention, the post is made telescopic so that the carriage can rise and fall relatively to the universal joint as the carriage follows a track shaped to the surface of the aircraft body. In the example shown, an inner telescoping tube b2, Fig. 7, has its lower end connected to the floor of the cockpit by a Hooke's joint e<3>, e<5> and is connected by a spring b<6> with an outer tube b<3> bent at the top to carry on a bracket h<1>, Fig. 8, a support i<2> for the gun, the traversing pivot i of which remains vertical for all positions of the post. To enable a spindle k<5> carry a speed sight to remain in constant aspect relatively to the aircraft during movements of the post round the track and during training movements of the gun on the pivot i, a compensating gear is arranged as shown in Fig. 8, between the spindle k<5> and a spindle k which passes down through the post for connection to a member f which remains in fixed position relatively to the axis e<3> of the Hooke joint. The carriage is locked in position on the track by a pin b<16> which passes through the track roller b<12> and enters one of a number of holes in the track under the control of a lever b<17> on a grip b<15> used for moving the carriage. By detaching the carriage from its track, the gun and post can be retracted into the aircraft body.