baber/WOPTO huggingface dataset:
Patent GB-857125-A (GB)
Title: Improvements in the production of polystyrene of high impact strength
IPC: C08F2/20
Filed: 1958-11-04
Abstract: High impact polystyrene is prepared by polymerizing a 2-20% solution of rubber in styrene in an aqueous suspension wherein a water-soluble organic colloid is used as the suspension agent. Styrene, nuclear and side-chain substituted styrenes, or mixtures with up to 50% of, for example, vinyl and acrylic esters, acrylonitrile, vinyl pyridine and vinyl carbazole are used and the rubber is natural or synthetic such as, copolymers of butadiene-styrene, vinyl pyridine or acrylonitrile. Colloids may be polyglycols, polyvinyl alcohols gelatin, fish glue, agar-agar, alginates, and sodium or ammonium polyacrylates with activators such as benzoyl, lauroyl, di-t-butyl peroxides, cumene hydroperoxide and a  a 1-azobis (cyclohexane-carboxylic acid nitrile) a  a 1-azo (di isobutyronitrile) or mixtures thereof and the polymerization temperature is constant or varied between 50 DEG C. and 180 DEG C.  Lubricants, e.g. butyl, cyclohexyl stearates, dioctyl phthalate, dodecyl benzene and soya and bone oils, and antioxidants e.g. 2-.6-t butyl 4-methylphenol, 2. 2-methylene-bis-(4-methyl-6-t butyl phenol) may be included.
Patent GB-924361-A (GB)
Title: Regulated transistor oscillator
Inventor: BROUWER HOWARD
IPC: H03L5/00
Filed: 1960-10-18
Abstract: 924,361. Automatic voltage control systems. LEAR Inc. Oct. 18, 1960, No. 35652/60. Class 38 (4). [Also in Group XL (c)] A push-pull inverter oscillator of the saturable core type (see Group XL (c)) has retroactive means for maintaining the output constant. In the basic non-retroactively controlled circuit shown in Fig. 4, when, for example, transistor 132 is conducting, the voltage between points 114 and 116 is limited by the voltage drop in the emitter base path of transistor 132 together with the forward voltage drop in diode 148 and the zener voltage drop in diode 146. In addition, the positive spike of voltage which appears at the base of transistor 132 when the transistor saturates is limited by a circuit comprising the emitter base diode of transistor 130 the forward path of diode 150 and the zener voltage of diode 148 while the negative spike which appears at the base of transistor 130 renders the transistor momentarily conducting so producing a cancelling current in the transformer winding. If the voltage of the supply 154 exceeds a predetermined value a zener diode 144 breaks down causing a transistor 140 to short-circuit the zener diode 146 and reduce the output voltage to a substantially zero value. In the retroactively controlled circuit of Fig. 5, the diode 146 is replaced by a transistor 200 having its base connected through diodes 174 and 212 to tappings on the output transformer. In operation the voltage produced by the diodes is sufficient to break down a zener diode 196 causing the transistor 200 to conduct and so maintain the amplitude of oscillation constant. If the supply voltage 210 exceeds the maximum safe value, zener diode 204 again conducts, reducing the output to substantially zero value. Corresponding circuits using NPN transistors are also described (Figs. 5, 6 and 8, not shown).
Patent GB-931687-A (GB)
Title: Mounting of mosaic elements in mimic diagrams
IPC: G09B1/10
Filed: 1961-10-04
Abstract: 931,687. Mimic diagram panels. STANDARD TELEPHONES & CABLES Ltd. Oct. 4, 1961 [Oct. 4, 1960], No. 35736/61. Class 146 (2). A mimic connection diagram panel in Fig. 6 comprises a lattice framework made of flexible synthetic plastic bars 1 and 1<SP>1</SP> (in Fig. 2, not shown) defining square openings into which are pressed mosaic elements 5, having two resilient limbs 6, 6<SP>1</SP> so that their nose pieces 7 and 7<SP>1</SP>, respectively, engage the bottom edges of either of two oppositely arranged bars 1 or 1<SP>1</SP>. The mosaic elements, which may be made of a synthetic plastic material, by pressing or injection moulding, integrally with the limbs, may be provided with a socket 8, Fig. 8, for the reception of a mimic circuit component and the top surface of the element 5 may be provided with a wiring symbol 9 of multi-coloured synthetic plastic material, so that when the wiring symbols are assembled and arranged in juxtaposition they may represent the circuit diagram of the entire system. The wiring symbols may be illuminated in different colours.
Patent GB-1457517-A (GB)
Title: Application of metal fittings to thermoplastics components
IPC: F16B37/06
Filed: 1973-07-27
Abstract: 1457517 Jointing ARMSTRONG PATENTS CO Ltd 12 July 1974 [27 July 1973] 35808/73 Addition to 1415513 Headings B3U and B3V [Also in Division F2] A metal fitting having an enlarged head 12 is applied to a thermoplastics component 14 by directly heating the fitting by a heated tool and mechanically pressing at least a portion of the head 12 into the component 14 by means of the tool. The head 12 of a metal stud, which is provided with a planar shoulder 20 and a frustoconical shoulder 22 interrupted by axial grooves 24 is located against the surface of or in a recess 28 of the component 14, whereupon heat and pressure are applied by a tool to the shoulder 20 to cause the thermoplastics to soften and to flow through the grooves 24 and over the shoulder 22. The shoulder 20 of the inserted stud may be made flush with the surrounding surface of the component 14.
Patent GB-358287-A (GB)
Abstract: 358,287. Two-stroke engines. ELWELL, M., Woodfield, ELWELL, W., Albert House, both in Woodsetton, near Dudley, Staffordshire, and WALL, A. W., The Laurels, Lyndon End, Sheldon, near Birmingham. Oct. 11, 1930, No. 30458. [Classes 7 (ii) and 7 (iii).] In an engine with terminal air admission and exhaust ports a<1>, a2 a pump for the liquid or gaseous fuel has its piston c driven direct from the main gudgeon b<1>. The piston c is hollow and works over an extension e<2> of the delivery pipe e ; a port c<1> in the piston admits fuel to the pumping chamber from a supply pipe f. The fuel is driven into the air in the power cylinder a through a port d<1> near the head of the cylinder.
Patent GB-467997-A (GB)
Title: Improvements in or relating to echo sounding apparatus
IPC: G01S1/72
Filed: 1935-12-27
Abstract: 467,997. Echo - sounding apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WRIGHT, G. M. Dec. 27, 1935, No. 35868. Drawings to Specification. [Class 118 (ii)] A cathode-ray tube is used as an indicator for an echo-sounding apparatus, the beam, which passes normally across the screen in parallel lines, being started as the sound is emitted and deflected when the echo is received, the position of the beam when deflection occurs indicating the depth. The rate of movement of the beam is adjusted so that readings are given directly in fathoms, the oscillators being controlled by an electrically maintained tuning fork. Different ranges are provided for by adjusting the oscillators to beat at ten times or at one-tenth of their normal frequency. Specification 406,903 is referred to.
Patent GB-1313910-A (GB)
Title: Disc brakes
IPC: F16D65/12
Filed: 1970-07-23
Abstract: 1313910 Disc brakes KNORR-BREMSE GmbH 23 July 1970 [25 July 1969] 35871/70 Heading F2E A support structure for a disc brake comprises an annular support member consisting of a hub 1 and support ring 2, rotating with a vehicle and receiving a radially extending connection securing a brake ring to the support member, a bolt 5 being welded to the support member and having threadedly attached thereto a balancing weight 7 to balance the support member as regards rotation about the wheel axis. The weights 7 are interchangeable, and are prevented from rotation by means of punch marks 9, Fig. 2 (not shown). The brake ring is secured to the support ring by means of adapter sleeves accommodated in openings (3). The structure may be adapted to be fixed to a wheel shaft or a wheel.
Patent GB-1322375-A (GB)
Title: Vessel with slide closure for liquid melts
Inventor: KUTZER H-J
IPC: C21C7/072
Filed: 1970-07-24
Abstract: 1322375 Slide valves for ladles DIDIERWERKE AG 24 July 1970 [26 July 1969] 36072/70 Heading F4B In a metallurgical ladle having a bottom pour opening in a backing plate 6 controlled by an apertured slide valve plate 8, a gas permeable refractory block 14 in said backing plate 6 is  supplied with Ar or N 2  through a radial port 6<SP>1</SP> the internal dimensions of said block corresponding to those of the pouring nozzle 4. The block may be made of mullite and its external surface  may converge downwardly.
Patent GB-433594-A (GB)
Title: Improvements in refuse shoots for dwellings and the like
IPC: E04F17/12
Filed: 1934-12-17
Abstract: 433,594. Dust-shoot closures. WALTERS, W. E., 296, High Holborn, London. Dec. 17, 1934, No. 36115. [Class 26] A dust-shoot closure comprises a hopper A slidable substantially horizontally in the opening, a pivoted base 9 to the hopper which is adapted to hang down to discharge the hopper contents and to be raised for closing the bottom of the hopper, and means in the opening to cause the base to swing up and down as the hopper is respectively pulled out or pushed in. The opening is lined with metal 3 and may have a cowl 13 ; slideways 5 are provided on the wall and coact with runners upon the side walls 7 of the hopper. A tray 9 is pivoted at 10 to the walls 7 ; when the hopper is withdrawn from the position shown in Fig. 2, the tray coacts with a bar 6 and is brought to a position, Fig. 3, where it makes a joint with the back wall 12. The side walls of the hopper may be shaped to provide stops for limiting the travel of the hopper, the front thereof may have a suitable gasket and the back wall may be forwardly extended.
Patent GB-1342004-A (GB)
Title: Continuous envelope assemblies
IPC: B42D5/02
Filed: 1971-08-02
Abstract: 1342004 Continuous envelope assemblies SOC D'EXPLOITATION DES ETABS MALENGE 2 Aug 1971 [23 Sept 1970] 36280/71 Heading B6A [Also in Division B5] A continuous envelope assembly is formed from a pair of superposed webs joined at predetermined locations to provide respective envelopes, one of the webs 1, Fig. 1, providing the rear panels of the finished envelopes being die cut at intervals to define flaps 6 for subsequent formation of the bottom edges of the envelopes and the other web 2, Fig. 2, which provides the front panels and sealing flaps 17, Fig. 5, of the envelopes being cut at its longitudinal edges and scored along lines 12, 13, 16, Fig. 2, to define side flaps 14, 15 and the sealing flaps 17. The web 1, whose margins 3, 4 are provided with pin feed holes 5, has its flaps 6 folded through 180 degrees to underlie the web and the web 2 has its flaps 14, 15 folded through 180 degrees to overlie the web, the web 2 being then glued along the flaps 14, 15 and along transverse strips 19 such that when the web 1 is superposed an assembly of interconnected envelopes is produced with the sealing flaps 17 disposed below the openings formed by folding of the flaps 6. The webs 1 and 2 are provided with lines of weakness such that the envelopes may be severed along the free edges of the sealing flaps and the pin feed margins separated from the printed envelopes.
Patent GB-370919-A (GB)
Title: Improvements in and relating to the casting of magnesium and magnesium alloys
IPC: B22D21/00
Filed: 1930-12-02
Abstract: 370,919. Crucibles ; melting magnesium and its alloys. BADGER, F., 14, Grange Road, Clapham, and BRITISH MAXIUM, Ltd., Point Pleasant, Wandsworth, both in London. Dec. 2, 1930, No. 36342. [Class 82 (i).] In casting magnesium and its alloys the metal is melted beneath a protective crust of magnesium chloride and fluoride or other flux 6 and poured into an intermediate vessel 8, containing an inert vapour, from which it is poured into a mould. The metal is melted in a crucible 1 with a plugged outlet 2. A pin 7 is inserted through the crust 6 to form a hole for a pyrometer. The plug is then removed and the crucible is tilted to pour some of the metal through an opening 15 in the cover 10 of a heated vessel 8, sulphur dioxide or other inert gas being introduced through the pyrometer hole, by means of a nozzle, to protect the metal. In a modification the inert gas is produced in the vessel 8 by inserting, in a perforated cup 12, a chemical which will give off the gas when heated.
Patent GB-1311952-A (GB)
Title: Iodine-containing biodegradable germicidal compositions
IPC: C11D3/48
Filed: 1970-07-27
Abstract: 1311952 Polyoxyalkylene compounds; iodine adducts MARLES - KUHLMANN - WYANDOTTE SA 27 July 1970 [28 July 1969] 36355/70 Heading C2C [Also in Divisions A5 and C3] Liquid, biodegradable, water-miscible, non- ionic surfactants are obtained by copolymerizing (a) ethylene oxide or a mixture thereof with a C 3  or C 4  alkylene oxide, (b) at least one C 10-20  alpha-olefin oxide and (c) a C 2-10  polyhydric alcohol having from 2 to 6 OH groups, the reactant proportions being such that the resulting product contains from 40 to 80% by weight of ethylene oxide groups. Iodine may be dissolved in the product to form a complex therewith, and this complex may be stabilized by subsequent addition of further quantities of the above surfactant or any other biodegradable surfactant, or by addition of ethanol or isopropanol. The iodine complexes may be diluted with water and acidified with mineral acids to provide germicidal compositions for use as shampoos. In examples glycerol and trimethylolpropane are reacted with ethylene oxide and mixtures of C 11-14  or C 15-18  alphaolefin oxides. Uses.-As surfactants, germicidal compositions and shampoos.
Patent GB-759739-A (GB)
Title: Improvements relating to high-voltage switchgear
Inventor: CHRISTIE JOHN
IPC: H02B1/24
Filed: 1953-09-16
Abstract: 759,739. Switchgear structures. REYROLLE & CO., Ltd., A. Dec. 15, 1954 [Sept. 16, 1953], No. 36388/54. Divided out of 759,708. Class 38(5) High-voltage duplicate bus-bar switchgear provided with circuit-breakers of the fixed type having associated switches for isolating them from the bus-bars and for selectively connecting them to the busbars, is provided with an additional switch associated with one of the bus-bars which has an "off" and two or more "on" positions. The additional switch, which may be of the pivoted bushing type disclosed in Specification 759,708, may be arranged to connect its associated bus-bar alternatively to corresponding sides of each of two or more of the circuit-breakers, to each side of one of the circuit-breakers, or to connect a line terminal either direct to the associated bus-bar or to the line side of the associated circuit-breaker. As shown in Fig. 3, two line units A, B, may each comprise a circuit-breaker so connected through line isolators 64 to line 60. Each circuitbreaker is provided with a bus selector switch 36, by which it may be connected to either of the bus-bars 33, 34, or isolated. An isolator 50 may connect the bus-bar 34 direct to either line 60, providing means whereby each circuit-breaker may be isolated and by-passed. In the arrangement shown in Fig. 4, two isolator bushings 70 are provided, each of which may connect the bus-bar 34 either to the upper terminal of the associated circuit-breaker 30 or direct to the line 60. By this arrangement full protection is provided by the circuitbreakers 30 while the load is transferred from one set of bus-bars to the other. Fig. 5 shows another circuit-breaker by-pass arrangement in which a circuit-breaker 80 is connected through a selector switch 81 to one or other of bus-bars 82, 83. A line 87 is connected through a second switch 88 either to bus-bar 83 or to the line terminal of the circuit-breaker.
Patent GB-1129694-A (GB)
Title: Improvements in or relating to valve stem seals
Inventor: MCCORMICK HAROLD EDWARD
IPC: F16J15/32
Filed: 1967-08-08
Abstract: 1,129,694. Valve stem seals. RAMSEY CORP. 8 Aug., 1967, No. 36437/67. Heading F2B. [Also in Division B5]  In a method of providing a seal about a valve stem and valve guide assembly, a fluorocarbon resin is moulded into the shape of a sleeve under heat and pressure, and is diametrically stretched and placed loosely over the valve guide 32 and is then heated sufficiently to cause it to shrink into tightly fitting engagement about the valve guide.
Patent GB-1222461-A (GB)
Title: Method and apparatus for vapor deposition
IPC: C23C14/54
Filed: 1969-07-21
Abstract: 1,222,461. Coating by vapour deposition. AIR REDUCTION CO. Inc. July 21, 1969 [Aug.13, 1968], No.36472/69. Heading C7F. In a vacuum vapour deposition process, the substrate 11 is heated by radiant heat to a temperature less than the lesser of the deposit reemission temperature and the substrate melting temperature by a radiant heat source 13 whose temperature is above said re-emission temperature, which radiates heat from a total solid angle in steradians (as subtended at the substrate) of no greater than 4# times the fourth power of the absolute temperature of the substrate times the emissivity of the substrate divided by the fourth power of the absolute temperature of the source of radiated heat times the emissivity of the radiator. Molten metal, e.g. Fe, Co, Ni, Al, Ag, Cr, Bi or Mn, is evaporated by electron beam 23 from crucible 19 cooled by water ducts 21, and the substrate 11, which may be rotated, and may be Fe, Ni, Cu, Al, or Ti, is heated by radiant heat from W or Mo plate 13, which is itself heated by electron beam 34. Instead of plate 13, an electrically heated radiant heater consisting of spaced strips may be used.
Patent GB-175853-A (GB)
Title: A protective device for direct current electric motors
IPC: H02H7/08
Filed: 1920-12-30
Abstract: 175,853. Fairburn, C. E. Dec. 30, 1920. Auxiliary protective or safety devices; indicators and alarms, applications of.-Relates to an automatic protective device for continuouscurrent motors which prevents flashing-over at the commutator in cases where the armature current is liable to overpower the field and produce great distortion. This arises in series traction motors which during regenerative braking are separately excited. The device consists of two coils A, B connected in the armature and field circuits O, P respectively. These coils act in opposition on a lever C carrying an insulated contact G. When the effect of the coil B is greater than that of the coil A and the spring E, the contact lever G is held against the contact-pieces H. The coil L is thus short-circuited and the switch K makes contact with the terminals of the resistance J. When the ratio of the armature current to the field current exceeds a predetermined value, the coil A becomes more strongly energized than the coil B, and the lever C is pulled down until it touches the stop F. The circuit at the contacts H is thus opened and current from some source M, N energizes the solenoid L, causing the switch K to open. This inserts the resistance J into the armature circuit and so limits the armature current. In addition, an automatic signal device may be operated prior to or simultaneously with the change in the armature circuit.
Patent GB-1420369-A (GB)
Title: Coreless honeycomb structure winding machine
IPC: B65H18/16
Filed: 1973-08-01
Abstract: 1420369 Winding webs NISSAN MOTOR CO Ltd and TSUCHIYA SEISAKUSHO KK 1 Aug 1973 [11 Aug 1972] 36646/73 Heading B8R In an apparatus for the coreless winding of a honeycomb material web 10, the roll is formed between first and second driven drums 18, 34, respectively, and means, e.g. a roller 36, provided between and above the axes of the drums, means being provided adjacent the inner surface of the first drum to produce a holding force on the web through the outer surface of the first drum. The holding means may be a suction device 22 co-operating with a perforated drum, or magnetic means. The roller 36, which may be driven, is mounted on a counterbalanced or spring-urged arm 37. The drums and roller may be independently driven and adjustably positioned.
Patent GB-1344375-A (GB)
Title: Methods of anchoring cables in prestressed concrete
IPC: E04C5/12
Filed: 1971-08-04
Abstract: 1344375 End fittings for cables SHINKO WIRE CO Ltd 4 Aug 1971 [3 Dec 1970] 36677/71 Heading D1T [Also in Division El] A coil 1 of twisted wire of non-circular cross-section is positioned between a relieved sleeve 3 and a cable 2 and the sleeve 3 deformed within the range 10-30% reduction to anchor the sleeve to the cable, the sleeve being of a length that is originally at least twice the diameter of the cable. By the term "relieved sleeve" is meant a sleeve having a portion of reduced-cross section. The sleeve 3 may press against an anchor plate (7), Fig. 4 (not shown) engaging a concrete mass through which the cable 2 extends. The sleeve 3 may be shaped at the end that is initially slid over the cable by (a) tapering said end as at 5 in Fig. 3; (b) forming a peripheral groove around said end; (c) outwardly flaring said end. Fig. 10 (not shown) shows a single sleeve (8) with a plurality of bores, each bore housing a cable 2 surrounded by a coil 1. The cables 2 extend through concrete (9) and there is a plate (7) between the concrete and the sleeve (8). Fig. 11 (not shown) shows a single plate (7) against which press a plurality of sleeves 3, each sleeve housing a cable surrounded by a coil 1.
Patent GB-1207648-A (GB)
Title: Improvements in and relating to rotary targets for x-ray tubes
IPC: H01J35/10
Filed: 1969-07-23
Abstract: 1,207,648. Electrode materials and processing. METALLWERK PLANSEE A.G. 23 July, 1969 [12 Aug., 1968], No. 37051/69. Heading H1D. [Also in Division C7] In a method of producing rotary targets for X-ray tubes comprising a base body of graphite covered with a tungsten or tungsten alloy layer at least at the electron impingment areas, a first layer of tungsten or tungsten alloy is sprayed on to the graphite body and a further layer of tungsten or tungsten alloy is deposited thereon from gaseous compounds. In an example the first layer of pure tungsten, 1 mm. thick, is produced by spraying with a plasma gun and the second tungsten layer, 0À2 mm. thick, is deposited from a mixture of hydrogen and tungsten hexafluoride in the ratio of ten to one by the volume at 550‹ C. If an outer layer of tungsten-rhenium alloy is desired rhenium hexafluoride is added to the mixture. Alternatively tungsten hexachloride may be used in the vapour deposition of the tungsten layer, or tungsten itself can be directly vapourizd. Alloy additions of osimum and iridium may be similarly produced.