baber/WOPTO huggingface dataset:
Patent GB-905053-A (GB)
Title: Improvements in regulated and filtered power converters
IPC: G05F1/46
Filed: 1960-07-15
Abstract: 905,053. Smoothing direct current. STANDARD TELEPHONES & CABLES Ltd. July 15, 1960 [July 22, 1959], No. 24681/60. Class 38 (2). A small power rectifier arrangement giving a regulated and filtered output comprises a constant voltage transformer T whose output is rectified by a rectifier MR1 and filtered by a capacitor C1, there being provided a transistor Tr whose emitter-collector circuit is in the output circuit and whose base is connected to a second smaller rectified output derived through a rectifier MR2 from a tapping on the transformer secondary winding and filtered by a capacitor C2. As shown, a potentiometer P allows some variation of the second output. The output current Io flows through the emitter-collector circuit and the output voltage is kept only slightly different from the voltage across C2 and has a low nipple factor. The constancy of the output voltage with load current is also improved.
Patent GB-814393-A (GB)
Title: Improvements in and relating to thermoplastic graft polymers
IPC: C08F255/02
Filed: 1955-08-29
Abstract: Graft polymers of polyethylene are made by forming and reacting together in the liquid state under polymerizing conditions a mixture of an ethylene homopolymer and a polymerizable monoethylenically unsaturated monomer of molecular weight above 28 in the presence of a polymerization catalyst.  The polymerization may be effected in bulk or both the monomer and polymer may be dissolved in an inert organic volatile solvent such as benzene, toluene, or xylene.  The monomer may be added portionwise.  The crude reaction product is generally a mixture of polyethylene, the homopolymer of the monomer, and the graft polymer.  If desired, the graft polymer can be isolated by dissolving from the product the two homopolymers.  Suitable monomers are vinyl formate, acetate, propionate, butyrate, octoate, stearate, benzoate, or chloroacetate, methyl, ethyl, butyl, octyl acrylate or methacrylate, acrylamide, Nmethyl acrylamide, N-tert.-butyl acrylamide, N,N-dimethyl acrylamide, methacrylamide, Nmethyl methacrylamide, vinyl chloride, bromide, or fluoride, vinylidene chloride, bromide, fluoride, or cyanide, styrene, methyl, ethyl, methoxy or chlorostyrene, 2,5-dichlorostyrene, acrylonitrile, methacrylonitrile, vinyl carbazole, or vinylene carbonate. Catalysts mentioned are benzoyl, acetyl, and lauryl peroxides, cyclohexyl hydroperoxide, di-tert.-butyl peroxide, and alpha, alpha-azobis-isobutyronitrile.  The graft copolymers may be plasticised and stabilized against heat and light by incorporating in the polymer small amounts of stabilizers and/or plasticizers such as phosphoric acid, dioctyl or tri-butyl phosphate, para-toluene sulphonic acid, dioctyl tin maleate, monochlorofumaric acid, tetrachlorophthalic anhydride, phosphorous pentoxide, phthalimide, dodecyl mercaptan or triphenyl methane.  The graft polymer may be heat-formed into films, threads, tubes, rods, sheets, tapes, ribbons, or used as waterproofing and electrical insulating agents.  Laminates can be made by uniting aluminium foil or sheets of regenerated cellulose with films made of the graft copolymer.
Patent GB-1523090-A (GB)
Title: Method for preparing d-pencilillamine and salts thereof
Filed: 1977-06-14
Abstract: A 4-thioazolidine carboxylic acid compound of the formula I is reacted an arylamine of the formula II, the substituents R<1>, R<2>, R<3>, R<4> and A each being as defined in Claim 1. The process is easy to carry out and economical, and the products are obtained in high purity and yield. Compared with known processes, the end products are easier to prepare and more rapidly freed of by-product. <IMAGE>
Patent GB-824340-A (GB)
Title: Improvements in composition and process for preparing same
IPC: C08L61/20
Filed: 1956-08-14
Abstract: A synthetic resin coating composition comprises a mixture of (1) 50 to 10% of a water-soluble, potentially thermosetting, aminoplast resin forming compound, and (2) 50 to 90% of a water-soluble ammonium salt of a copolymer derived essentially from (a) 50 to 5% of one or more alpha, beta-ethylenically unsaturated carboxylic acids, and (b) 50 to 95% of one or more alkyl esters of alpha, beta-ethylenically unsaturated monocarboxylic acids, and (c) optionally, up to 25% of a polymerizable monomer containing a CH2=C< group which is water-soluble to an extent less than 10% by weight of room temperature.  The thermosetting aminoplast composition may be the reaction product of aldehydes such as formaldehyde, acetaldehyde, crotonic aldehyde, acrolein, benzaldehyde, furfuraldehyde, paraldehyde, trioxymethylene or paraformaldehyde with compounds such as urea, ethylene urea, dicyandiamide, melamine or formo-, benzo- or acetoguanamine and the products may be etherified e.g. the dimethyl ether of trimethylol melamine.  The unsaturated carboxylic acid (a) may be a monocarboxylic acid such as acrylic, beta-benzoyl acrylic, methacrylic, cinnamic or crotonic acids or a polycarboxylic acid such as maleic, fumaric, itaconic, citraconic, mesaconic or aconitic acids or halogenated acids such as halogenated maleic, e.g. chloromaleic acid.  The corresponding anhydrides may be used in place of the acids in the copolymerization.  The alkyl ester (b) may be the methyl, ethyl, propyl, butyl, octyl, decyl or lauryl esters of acrylic acid or may be ethyl, butyl, heptyl or decyl methacrylate or propyl, butyl or nonyl crotonate.  The comonomer (c) may be styrene or methyl, ethyl, propyl or butyl styrenes; dimethyl styrenes; vinyl naphthalene; acrylonitrile; methacrylonitrile; halogeno ring or side chain styrenes, e.g. alphachlorostyrene, o-, m- or p-chlorostyrene, 2,3-, 2,4- or 2,5-dichlorostyrene or alkyl side chain styrenes, e.g. alpha-methyl or alpha-ethyl styrene.  The copolymers are rendered water-soluble by conversion to the ammonium salts by reacting with aqueous ammonia.  The coating compositions may be applied in aqueous solution and may comprise a catalyst such as hydrochloric, sulphuric or nitric acids or further ingredients such as rutile titanium dioxide or the monomethyl ether of ethylene glycol.  In the examples copolymers of alkyl arylates with acrylic acid and terpolymers derived from these monomers and also styrene or acrylonitrile are made by copolymerization in dioxane using cumene hydroperoxide as catalyst.  A modifier such as butyl mercaptan may be present, the reactants may be added incrementally and the copolymers obtained are reacted with aqueous ammonia.
Patent GB-776876-A (GB)
Title: Improvements relating to plug and socket connecting boxes
Inventor: CANNON CHARLES HENRY
IPC: H02G3/18
Filed: 1954-08-27
Abstract: 776,876. Two-part couplings. SIEMENS BROS. & CO., Ltd. Nov. 25, 1955 [Aug. 27, 1954], No. 24954/54. Class 38 (1). A plug for a connecting box 9 particularly adapted to be mounted flush with the surface of the ground, comprises a cover part 1, Fig. 2, and a skirt part 2 having projections 4, 5 which together form a lateral cable entry. The part 2 encloses an insulating blade-contact-carrying member 11 and has an external flange 21 with a locking ring 26 and sealing gasket 22 above and below it respectively. Insulating compound is introduced into the space between cover 1 and.member 11 to enclose the terminal connections. The plug is inserted through an aperture in a flange 24 depending from the cover 8 of the box, which aperture is otherwise closed by a dummy plug, the act of inserting the plug depressing a plunger 32 to close a switch and complete the circuit through fuses 20 to socket contacts 18 with which the plug blades cooperate, an earthing connection being completed by the skirt 2. Gasket 22 engages a rib 23 on flange 24 and locking ring 26 is rotated, so that lugs thereon engage recesses in the flange 24, by rotating a bar 29, Fig. 1, pivoted on the cover 1 and engaging pins carried by ring 26 and passing through arcuate slots 28, 28<SP>1</SP> in the cover 1. Pivoted handles 30, 301 on the bar 29 serve for rotating the latter and lifting the plug out of the box.
Patent GB-405738-A (GB)
Title: Improvements in storage cartons
IPC: B65D5/54
Filed: 1932-09-08
Abstract: 405,738. Cartons. KELLOGG CO., Porter Street, Battle Creek, Michigan, U.S.A.- (Assignees of Wilder, H. K.; 100, Guest Street, Battle Creek, Michigan, U.S.A.) Sept. 8, 1932, No. 25035. Convention date, Jan. 11. [Classes 18 and 66.] A carton for cereals &c. has fracturable indentations 18 near one end thereof and extending about all but one of the side walls which side wall has means whereby the end of the carton, after it has been opened along the fracturable indentations 18, may be used as an attached lid or closure. As shown the indentations 18 are in one plane and the one wall 24 has an unbroken line or indentation 19 formed therein along which the wall is deformed in opening or reclosing the carton.
Patent GB-1342772-A (GB)
Title: Boom slider assembly
IPC: B66C23/70
Filed: 1971-04-19
Abstract: 1342772 Cranes WARNER & SWASEY CO 19 April 1971 [17 April 1970] 25064/71 Heading B8B A slider assembly 14, 16, mounted on one section of a crane telescopic boom to slidingly support an adjacent section comprises a support assembly 80 pivotally connected at 68 to one boom section and supporting a pair of slider pads 72, 74 pivotally mounted thereon for sliding engagement with the adjacent boom section. The pads 72, 74 are each mounted on blocks 84, 86 pivotally mounted between a pair of spaced plates forming the assembly 80, the pads pivoting relative to each other to support the boom section during deflection due to loading thereon. An alternative slider assembly 124 comprises a slider pad 130 mounted between pivoted side plates and having slots formed transversely in its supporting surface, the whole assembly 124 being designed to have a structural deflection curve which matches the deflection curve of the supported boom sections in the area where the slider assembly engages the boom. In a final embodiment the slider block assemblies 84, 86 of the first embodiment are designed so that their curve of deflection matches the curve of deflection of the supported beam section.
Patent GB-1316383-A (GB)
Title: Internal combustion engines
IPC: F02B23/10
Filed: 1971-04-19
Abstract: 1316383 Fuel injection for I. C. engine MITSUBISHI JUKOGYO K K 19 April 1971 [23 March 1970] 25082/71 Headings F1A and F1B An I. C. engine comprises a cylinder-head 2, a spiral passage 7 for introducing air with swirl around the periphery of a cylindrical combustion chamber 3, a fuel injection nozzle 10 to inject fuel in a direction so that the fuel has a component of velocity in a direction opposite to the direction of air swirl in the vicinity of the fuel injection nozzle and a sparking plug for igniting the combustible mixture. The injection nozzle 10 is placed so that 2rN/D is from 1/3 to ¥, where rN is the distance from nozzle tip to combustion chamber axis and D is the combustion chamber bore; #N is greater than zero but not greater than 60 where #N is, in a plan view of the combustion chamber, the angle between a line through the chamber axis parallel to the nozzle axis and a line through the nozzle tip and the chamber axis; #s is from 0 to 45 inclusive where #s is, in an elevation of the cylinder, the angle between the nozzle axis and the cylinder axis; 2rp/D D is in the range  to ¥ where rp is the distance between the sparking plug tip and the combustion chamber axis and the distance L between the nozzle tip and the sparking plug tip is from 10 to 60mm. A cavity 6 is provided in the piston 4 and is mainly cylindrical, and may have a frusto-conical upper part which may be inclined towards the sparking plug. Fuel injection pump A developed view of a fuel injection pump plunger (Fig. 5) shows helixes 30 and 32 for determining the timing of the start of injection and lands 31 and 33 for determining the timing of the end of injection. Helix 30 and land 31 are for normal turning; whereas helix 32 and land 33 are for starting, so that the distance 34 and the curve for cam lift determine the difference in the end of injection between normal running and starting.
Patent GB-1095055-A (GB)
Title: Improvements in or relating to high pressure metal vapour electric discharge lamps
Inventor: KUHL BERNHARD
IPC: H01J61/54
Filed: 1966-06-06
Abstract: 1,095,055. Metal vapour lamps. PATENTTREUHAND - GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN m.b.H. June 6, 1966 [June 10, 1965], No. 25114/66. Heading H1D. High pressure metal vapour lamp operating at several atmospheres pressure comprising a sealed discharge tube mounted within an outer envelope and containing rare gas, mercury and one or more vaporizable halogen compounds, e.g. metal iodide, has a thermal switch between the two envelopes, the switch, with movable bimetal strip, having a resistive heating element, e.g. a coil, connected in series with one of the two lead-in wires and the contacts connected between the lead-in wires so as to short-circuit the tube when not in operation; the application of the supply voltage in this short-circuited mode causes the switch contacts to separate, producing a high voltage inductive pulse between the discharge electrodes, thereby initiating conduction. The heating element may also be the movable bimetal strip itself heated directly due to its inherent resistance, the strip being fixed at one end and its other end connected to the electrode by means of a flexible connector forming part of the lead-in wire. The lamp and switch thermal capacities can be such that on accidental extinction of the discharge, the contacts will remain open due to the residual heat stored until the tube has cooled to a temperature at which the gas pressure is sufficiently low for re-initiation by the switch mechanism.
Patent GB-441152-A (GB)
Title: Improvements in, or relating to, drilling machines
IPC: E21B3/00
Filed: 1934-08-31
Abstract: 441,152. Drilling - machines. DRINNAN, J., 490, Penistone Road, Sheffield. Aug. 31, 1934, Nos. 25127 and 28683. [Class 83 (iii)] In a portable rotary drilling-machine for operating on rock, coal, &c. an electric motor 3 is attached to a vertical column or support (not shown), about which it can be swung and carries studs 6 by which a casing 4 may be secured in any angular position about the axis of the motor shaft 2. Bearings 11 in the casing 4 support the shaft 2 which is provided with a pinion 10 engaging a bevel gear 9 supported by bearings 13 in a casing 8 attached to the casing 4. The boss 12 of the gear 9 has a polygonal bore which slidably receives the drill rod 14 carrying the drill 15. Feed may be applied to the drill rod by radial handles 19 screwed into a cap 16 rotatably supported on the drill rod by ball bearings 18, or alternatively a rack 21, Fig. 3, may be attached by a split bracket 22 to the casing 8, another bracket 23 being slidable on the rack by a hand-operated pinion 25. Open-sided slots 28 in the bracket 23 receive the handles 19 to impart feed to the drill on rotation of the pinion 25. In a modified construction, the drill rod 14 is dispensed with and the bore of the bevel gear boss 12 is circular to fit the drill 15, internal keys 30, Fig. 5, being provided to engage longitudinal slots in the drill. Enlargements 31 are also provided to allow the cutting points of the drill to pass through the boss. The boss 12 may be provided with interchangeable sleeves to receive either the drill rod 14 or the drill 15, or the drill may have a section similar to the rod 14.
Patent GB-613599-A (GB)
Title: Improvements in or relating to shoulder pads for garments
IPC: A41D27/26
Filed: 1946-08-23
Abstract: 613,599. Shoulder pads. FRAIS, S. Aug. 23, 1946, No. 25170. [Class 141] A shoulder pad of the type made of spongy material and adapted to give a straight line effect from collar to shoulder, is treated with a substance, e.g., a coating of plastic solution, to prevent harmful effects due to the usual solvents employed during dry-cleaning. As shown, the pad A, which is of crescent-shaped cross-section, tapers to a feather edge D at the neck. It is provided with a protective coating E and an external casing F. Loops G may be provided for securing the pad to a garment. According to the Provisional Specification, the external casing may contain additional padding material. Specifications 449,336 and 453,554 are referred to.
Patent GB-462523-A (GB)
Title: Improvements in or relating to the cutting of paper webs
IPC: B26D5/34
Filed: 1936-04-20
Abstract: 462,523. Automatic control systems. PORTALS, Ltd., MARSDEN, J. C., and KNAGGS, J. April 20, 1936, No. 25205. Divided out of 457,268. [Class 38 (iv)] Registration.-In a machine for cutting watermarked paper from a web in register with watermarks, a scanning ray and photoresponsive device 100 in opposite faces of the web co-operate with edge watermarks to produce electrical impulses at a frequency depending on the web speed. These impulses reciprocate a member 99 across the path of two elements on a carrier 97 rotating at constant speed, so that under conditions of correct registration the member passes between the elements. When the cutting knife is out of register with the watermarks the reciprocating member makes contact with one or other element and produces a change in the speed. of the web or of the cutting knife to correct the registration. An expanding pulley or resistance in the circuit of a driving motor may be adjusted by relays actuated by electrical contacts 111, 112, so made or by the operation of arms by mechanical engagement with pivoted vanes 102, 103.
Patent GB-1262865-A (GB)
Title: Improvements in or relating to storage arrangements
Inventor: FOSS RICHARD CHARLES
IPC: G11C17/16
Filed: 1968-05-27
Abstract: 1,262,865. Read only memory. PLESSEY CO. Ltd. 4 June, 1969 [27 May, 1968], No. 25239/68. Heading G4A. The invention relates to an integrated circuit read only memory. In Fig. 2 is shown a matrix store having diodes at selected cross-over points between input wires C, C, D, D, and lines 3-6 each connected to a transistor VT 1 -VT 4 . The emitter circuit of each transistor contains a fusible link F 5 -F 8  connected to a common output line V 0 . Initially all links are intact and to store data in the memory an input address is selected by applying appropriate voltages to the input lines and a voltage is applied to V 0  such that the current flowing through the transistor selected by the address fuses the link. A further embodiment (Fig. 3, not shown) illustrates a matrix of transistors each with a fusible link arranged to provide multi-bit readout for each address. In Fig. 5 the output lines are Y 1 -Y 4  and the transistors associated with the fusible links are in the selection circuits M, the fusible links being in the collector circuit of the transistors and being connected in series with a diode to provide isolation between the output wires. In Fig. 7 (not shown) is illustrated a tree addressing arrangement using metal-oxide silicon transistors.
Patent GB-269795-A (GB)
Title: Improvements in marking and checking devices for laundry and the like
IPC: D06F93/00
Filed: 1926-10-11
Abstract: 269,795. Croad, A. K., (Carolyn Laundry). Oct. 11, 1926. Securing.-A tag, adapted for use in laundries for identifying garments &c., is formed of a strip of flat spring metal bent to form jaws 1, 2, each jaw having projections 4 to force portions of the laundry piece into apertures 5 in the other jaw. A lateral extension on the jaw 2 is slotted to fit a ribbed key 12. A modified construction comprises a flat tag formed with a central slotted key aperture, the tag being attached to the garment by struck-up prongs, or by sewing through small thread-holes at the corners of the tag.
Patent GB-591597-A (GB)
Title: Improvements in or relating to coupling devices for ultra high frequency apparatus
IPC: H02G15/00
Filed: 1944-12-18
Abstract: 591,597. Matching impedance. ROBINSON, D. M., STARR, A. T., and ADAMS, J. B. Dec. 18, 1944, No. 25422. [Class 40 (iii)] [Also in Group XXXVI] In a rotatable coupling for ultra - high frequency apparatus, e.g. concentric cables, the inner and outer conductors 6, 8, respectively of the rotatable part overlap axially the inner and outer conductors 4, 7, respectively, of the fixed part by one or an integral odd number of quarter wavelengths at the operating frequency, the conductors thereby forming air-spaced concentric cylindrical conducting surfaces, whereby capacitative coupling is effected. Energy is prevented from passing down the outside of the coupling and radiation losses are reduced when the coupling is enclosed in a., mechanical housing, by a skirt-like member 9 secured to the fixed portion and constituting two quarterwave length sections E, F of differing impedances.
Patent GB-1286714-A (GB)
Title: Copy board illumination system
IPC: G03B27/54
Filed: 1970-05-27
Abstract: 1286714 Lamps ITEK CORP 27 May 1970 [2 June 1969] 25461/70 Heading F4R A system for illuminating a copy board comprises a pair of lighting fittings disposed above, and beyond the ends of, the board, each fitting being provided with a series of baffles for controlling the light distribution over the surface of the board. Each fitting contains two fluorescent lamps 16, 17 and is divided into a centre zone 14 and two end zones 10, 12, the end zones having a plurality of vertical baffles 20 and the centre zone containing two L-shaped baffles 28, 30 which extend under the upper lamp 16 and are adjustable longitudinally of the fitting to vary the extent to which they overlap. Each zone includes a lower horizontal baffle 24, 38 which is slidable transversely of the fitting, and a shield 18 extends along the upper front portion of the fitting to prevent light from reaching the eyes of the operator. The baffles 20 may be hinged at 22 to provide further adjustment.
Patent GB-653714-A (GB)
Title: Improvements in packing-strips for windows
Inventor: PERNETTA CHARLES
IPC: E06B3/62
Filed: 1948-09-30
Abstract: 653,714. Windows. BECKETT, LAYCOCK & WATKINSON, Ltd. Sept. 30, 1948, No. 25551. [Class 20 (iii)] A rubber packing-strip 20 for a window in which the glass 25 is mounted in a metal channel 23 and is pressed towards one side wall thereof to locate it, is of U- section to embrace a wall of the channel and is provided with a part 34 which extends transversely to retain the strip in position. In Figs. 1, 2 the strip 20 has a long outer limb 21, and a short inner limb 22, which contacts with the glass 25, a lip 27 providing an effective seal. The part 34 embraces the horizontal surfaces 24 of the channel 23, and the glass is retained in place by a packing-strip 41 of known form. The strip 20 may be formed as shown in Figs. 3 and 5 to engage with a part 28 or 32 of the structure which contains the window. In a modification the structure part 32 is vertical and the slot in the strip 20 is correspondingly positioned. In a construction wherein the vertical flange of the metal channel of Fig. 1 is bent back on itself to present an outwardly directed edge around the window opening, the part 34 of the strip 20 is slotted to receive the said edge. In another modification of the arrangement of Fig. 1 the part 34 is sandwiched between the surfaces 24 and surfaces on the supporting structure, the free ends of the strip having triangular lips which are deformed against both metal parts to provide effective water seals. Wood-screws pass through the parts 24 of the metal channel and through the rubber strips and the structural parts into wooden filler blocks.