baber/WOPTO huggingface dataset:
Patent GB-1143208-A (GB)
Title: Electronic component
IPC: H01T4/08
Filed: 1966-02-21
Abstract: 1,143,208. Capacitors; spark gaps. GLOBEUNION Inc. 21 Feb., 1966 [26 April, 1965], No. 7452/66. Headings H1M and H1X. An electrical circuit component comprises a non-conductive base portion, e.g. a capacitor dielectric bearing electrodes on its surface and two pieces of flexible wire supported on the base portion at positions intermediate their ends, a first pair of distal ends facing one another to form a spark gap and being a sufficiently short distance from the support position to provide a substantially rigid structure in the vicinity of the spark gap, the other ends of the wires being relatively long and extending from the base for connection in the circuit. As shown, a capacitor comprising a ceramic, e.g. steatite, disc 24 having conductive layers, of which one is shown at 26, fused to opposite sides, is trapped between the middle portions 30, 32 of the limbs of a bent metal wire, the wire is soldered or pasted to the electrodes and the bight portion 34 of the wire severed before or after encapsulation of the capacitor to form the spark gap providing overvoltage protection for the capacitor. The wire may be a tinned copper alloy, the encapsulation may be phenolformaldehyde resin and the electrodes may be applied as a silver paint. Parallel resistance may be incorporated by local doping of the ceramic or by means of a strip of resistive paint. In another embodiment (Figs. 6 to 8, not shown) two semicircular electrodes are fused to one side of the disc to co-operate with a single circular electrode on the opposite side and form two series-connected capacitors. Each of the lead wires is attached to one of the semicircular electrodes and the ends forming the spark gap are bent away from the plane of the electrodes. The dielectric properties of the substrate may be selected to provide a resistor or inductor having a spark gap for overvoltage protection.
Patent GB-227317-A (GB)
Title: Improvements in or relating to liquid fuel supply devices for internal combustion or like engines
IPC: F02M37/02
Filed: 1924-03-24
Abstract: 227,317. Siefert, O. March 24, 1924. Vacuum apparatus. - Apparatus for raising liquid fuel for internalcombustion &c. engines comprises two suction chambers 1, 2, each provided with suction and atmospheric valves 8, 9, and 14, the valves of both chambers being controlled by a single float 22. The suction passages 12, 13 of the two chambers are controlled by a doubleseated valve 8, 9, and the atmospheric passages 15, 18 by a combined lift and slide valve 14, both valves being carried by a rod 19 adapted to be moved up and down by a float 22 to connect each chamber alternately to suction and atmosphere. The fuel enters the chambers from the supply pipe 7 through two pipes provided with non-return valves, and is discharged through valves 32, 33. A float valve 26 prevents fuel from being drawn into the suction passage J2.
Patent GB-756084-A (GB)
Title: Improvements in or relating to filter elements
Inventor: PICKARD JOSEPH ALLEN
IPC: B01D29/41
Filed: 1954-03-15
Abstract: 756,084. Filters. METAFILTRATION CO. Ltd. Feb. 14, 1955 [March 15, 1954], No. 7501/54. Class 46. A filter element comprises annular paper discs a, b united at their outer peripheries (not shown) and including between them a slightly smaller annular metal drainage disc e perforated with a series of concentric rings of fine holes g, adjacent holes being pierced from opposite sides of the disc and burrs h being left around each hole by the piercing operation, as in Specification 737,234. To the disc e is spot-welded a washer i having undulated inner and outer edges and, on the face contacting the disc e, channels l.
Patent GB-796337-A (GB)
Title: Improvements in or relating to electromagnets
IPC: H01F7/20
Filed: 1955-03-15
Abstract: 796,337. Electromagnets. IGRANIC ELECTRIC CO., Ltd. March 15, 1955 [April 16, 1954], No. 7540/55. Class 35. A lifting electromagnet comprises a magnetic frame 10 which is machined from a steel bar to provide an annular inner pole 31 and a wire terminal recess 12 at its top part, a magnetic top plate 28 having a central hole to allow insertion of part of the frame 10, a tubular outer pole member 33 having one end 34 welded to the plate 28, and a coil 29. The plate 28 has its inner circular part positioned in a cut-away portion 25 of the frame 10 to which it is secured by a continuous weld 38. The coil 29, which is located between the frame 10 and the member 33, has its surrounding space filled with impregnating compound 41. An annular metal shield 42 is provided in contact with the impregnating material 41 and positioned and caulked as at 43, 43a, as shown in Fig. 1. When the lifting magnet is used on a lift truck or a fork lift type truck, it is secured in place by means of the plate extensions 28a, 28b, 28c and 28d and studs 28e, 28f, 28g and 28h.
Patent GB-1095856-A (GB)
Title: Fire-resistant cladding for doors of metallurgical furnaces
IPC: F27D1/18
Filed: 1966-02-21
Abstract: 1,095,856. Furnace doors. VEITSCHER MAGNESITWERKE - ACTIEN - GESELLSCHAFT. Feb. 21, 1966 [March 15. 1965], No. 7546/66. Heading F4B. The door of a metallurgical furnace com prises a hollow box 1 through which coolant is circulated and within which a plurality of fireresistent blocks 2 are disposed, said blocks being threaded on to metal rods 3 which lie adjacent the floor of the box and which extend substantially over the width of the door box but are not metallically connected to it. The space between the blocks is filled with a refractory cement mass 5. The blocks can rest either directly on the box-floor or on an intermediate layer 4 of fire-resistant material and can have a cross-section which progressively increases from the end adjacent the floor to the end remote from it or be of prismatic outer surface with one or more side-wall grooves parallel to the floor of the door box.
Patent GB-130296-A (GB)
Title: A Process for Stiffening Hair Brushes.
Inventor: FEARY NEVILLE ALEXANDER THOMAS
IPC: A46D1/00
Filed: 1919-03-26
Abstract: 130,296. Feary, N. A. T. N. March 26, 1919. Bristles.-The bristles of soft hair brushes are stiffened by coating them with a layer of flexible grease and water-proof material. The material described is an aqueous solution containing casein, borax, glycerine and formaldehyde in which the bristles are dipped, the brush being then shaken and dried so that the water evaporates.
Patent GB-828070-A (GB)
Title: Improved method of and apparatus for attaching springs to members
IPC: B25B27/00
Filed: 1956-03-12
Abstract: 828,070. Making valves; assembling force fits. NEW ERASOLE PRODUCTS Inc. March 12, 1956 [Sept. 27, 1955], No. 7584/56. Classes 83 (2) and 83 (4). A method of positively attaching an end of a spring to a member having an extension, e.g. a valve stem, the internal diameter of a coil of the spring being smaller than the diameter of the extension, comprises positioning the spring with one end adjacent the free end of the extension, compressing the spring to force its end against the extension and rotating the spring in the direction of the winding of its coils whilst preventing rotation of the member so that the end coil or coils expand and move over the extension, and terminating rotation and compression of the spring whereupon the coil or coils contract and positively grip the extension. The assembling device comprises a housing 12 supporting a table 13. A bore 15 extending through the table 13 and housing 12 is provided with an enlarged portion 16 and slidably accommodates a spring-loaded carriage 20 provided with a continuous passageway 30 having tapered portions 31 and 33. A rotatable shaft 35 extends into the lower part of the passageway 30 and the upper part of the passageway provides a chamber for receiving the valve spring 10 and the valve member 11 to be assembled. With the spring and valve member in position in the passageway the pressure contact is obtained by means of a ram 50 which moves the valve member 11 downwardly until it engages the tapered portion 33 of the carriage 20 whereupon the ram moves the member and the carriage against the spring 24 to establish the pressure contact. The end 36 of the shaft 35 which is in engagement with the spring 10 has a shoulder 51 so that the spring rotates with the shaft 35. The frictional engagement between the valve member 11 and the carriage at the tapered portion 33 prevents rotation of the valve member. After the spring is joined to the extension 42 on the valve member the ram is withdrawn and the shaft 35 is used as an ejector. In an embodiment an opening in the table receives a rotatable member 63 having a passageway 65 provided with tapered portions 68 and 70 for accommodating the valve member and spring to be assembled. A cylindrical portion 69 of the passageway slidably receives an enlarged cylindrical portion 72 on the valve member. A ram 80 provides the pressure contact by compresssing the spring in the tapered portion 70 of the passageway, the compression being limited by the cylindrical portion 72 on the valve member engaging the tapered portion 70. To prevent rotation of the valve member the ram has a recessed head 81 which frictionally engages the valve stem. The assembled spring and valve member are ejected from the ram by a rod 82. The apparatus may be used at different stations on a rotating table in an automatic machine.
Patent GB-673660-A (GB)
Title: Improvements in or relating to double glazed panels
IPC: E06B3/64
Filed: 1949-03-21
Abstract: 673,660. Double windows. FISH, K. R. G., GENT, R. T., and BOYS, D. L. Feb. 28, 1950 [March 21, 1949], No. 7658/49. Class 20(iii). A double window has its two panes of glass 1 seated on a resilient sealing strip 2 formed with a channel in which metal strips 5 are positioned and is surrounded by a metal frame. 3 of E-section, a limb 6 of which is forced between the strips 5 to bring the panes of glass into sealing contact with the sealing strip 2. The space between the panes of glass may be exhausted and filled with dry air or gas or " breathing holes " may be provided.
Patent GB-251245-A (GB)
Title: Improvements in or relating to sliding windows with pressure frames
IPC: E06B3/46
Filed: 1926-03-19
Abstract: 251,245. Schmidt, K. April 24, 1925, [Convention date]. Window shutters; window frames; rattling of windows, preventing; sliding window opening and closing apparatus. - A horizontally sliding double-glazed sash or pair of sashes 4 and shutters 8 are pressed together and against the fixed outer frame 10 by a movable pressure-frame 12 adapted to be secured by a swivelling fastening. The window and shutter are guided by top rails 7, 9 and the window is guided below by a rib engaging the frame. The shutter is operated through a toothed rack and wheel 16 by a handle 17 and has an inner hinged part adapted to be held open by a toggle-link 20.
Patent GB-705397-A (GB)
Title: Sulphur recovery process
Inventor: EVANS ERIC BERTRAM
IPC: C01B17/027
Filed: 1951-04-03
Abstract: At least part of the sulphur is separated from spent iron oxide by maintaining the spent oxide in finely divided form as a fluidized bed at a temperature above the melting point of sulphur, e.g. 250-450 DEG F., and using superheated steam as fluidizing gas. The spent oxide may be up to 100 m  particle size and the steam velocity should be 1-2 ft./sec.  The bed stratifies into an upper sulphur-rich phase and a lower oxide-rich phase, which phases at 250-350 DEG  F. may be separately withdrawn when the oxide-rich phase is returned to a gas purification system.  The sulphur-rich phase may be used as impure sulphur, or the sulphur may be solvent extracted therefrom.  The conditions of fluidizing may be so adjusted that the withdrawn phase is virtually a scum of sulphur on top of the bed.  Alternatively, the sulphur-rich phase may be chilled, to below the sulphur melting point, by injecting liquid water into the bed in amount not exceeding that which will be wholly evaporated, and the resulting mixture of solid sulphur and oxide particles may be separated by fluidization with cold air in the same or a second vessel or by elutriation.  As a further alternative, the sulphur-rich phase may be withdrawn to a second vessel and then chilled with water therein.  The treatment temperature may be increased to 350-450 DEG  F., when the sulphur is steam distilled from the fluidized bed.  Specifications 554,227, 568,913, 586,914, 590,456 and 601,723 are referred to.
Patent GB-868889-A (GB)
Title: Improvements in or relating to wound capacitors
IPC: H01G13/02
Filed: 1960-03-04
Abstract: 868,889. Capacitors. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 4, 1960 [March 7, 1959], No. 7759/60. Class 37. Separate wound capacitors are made from a single roll of interleaved dielectric 3 and metal foils 4, 5, 6, 7 by weakening or perforating the dielectric along lines such as 9 shown in Fig. 2 before winding them on a former the completed role being subsequently broken at such lines to form the individual capacitors. The dielectric may be paper or a synthetic material and the wound roll impregnated with wax or an ethoxyline resin before the separate capacitors are broken off. Alternatively, the electrodes may be metal coatings on the dielectric or one metal foil may be used which is perforated at the same time as the dielectric.
Patent GB-538426-A (GB)
Title: Improvements relating to locking devices for rotary clamping members
IPC: F16B39/24
Filed: 1940-05-02
Abstract: 538,426. Locking bolts &c. TINNERMAN PRODUCTS Inc. May 2, 1940, No. 7884. Convention date, May 5, 1939. [Class 89 (i)'] Screws or nuts are locked by washer-like elements having projections forced into contact with the shank or threads of the screw and other projections embedded by the clamping pressure in the screw head, nut, or a face of the work to be clamped. A blank preferably sheared without waste from a strip of spring steel has a substantially diamond shaped hole punched in it in such relation to narrow side slots that tongues 11, 12, Figs. 1, 3, are formed between side strips 13, the tongues being bent up and the strips cambered as shown in Fig. 1. The corners are formed at 15 to engage either the face of the work A or the underside 2 of the head or nut. On screwing up, the tongues bite into the shank and the corners are embedded. In a modification the tongues 11, 12 have a concave instead of a veed end. In a further modification the tongues are formed with a number of twisted sections '44, Fig. 10, preferably splayed to suit the helix angle of the thread and the direction of twist being such as to permit easy screwing up but to resist unscrewing. The sections may be in the form of serations 44, Fig. 11.
Patent GB-512577-A (GB)
Title: Improvements in or relating to three-phase electric transformers or choking coils
IPC: A47C17/16
Filed: 1938-03-14
Abstract: 512,577. Transformers ; inductances. SIEMENSSCHUCKERTWERKE AKT.-GES. March 14,1938, No. 7921. Convention date, March 13, 1937. [Class 38 (ii)] In polyphase transformers or choking coils having asymmetric magnetic circuits (e.g., cores with limbs in one plane) giving rise to harmonics of unequal amplitudes in the different phases, the harmonics are compensated or balanced out. by a flux system produced by ampere-turns so selected in magnitude and phase as to be represented by a vector diagram the corner points of which coincide with the corner points of a vector diagram representing, the flux system of the main windings. Fig. 3 shows an arrangement in which the balancing flux system is produced in a divided yoke 10, 11, 12 by a winding 16 connected between the ends of two of the phases of a star-connected winding 13, 14, 15 on the core limbs. Fig. 5 shows an alternative arrangement in which the balancing flux system is produced in a core 26 separate from the main core 27 carrying a star-connected winding, the core 26 carrying a delta-connected winding the two outer phases of which are connected to adjustable tapping points on the middle phase. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specifications 512,788 and 512,789. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1423658-A (GB)
Title: Olefine polymerisation process
IPC: C07F9/572
Filed: 1973-02-19
Abstract: 1423658 Preparing phosphoramidic compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 29 May 1973 [9 June 1972 19 Feb 1973] 27008/72 and 7986/73 Heading C2P [Also in Division C3] Phosphorus compounds of the formula below, together with their preparation and use as Ziegler catalyst components (see Division C3), are described. The compounds have the formula  wherein R<SP>1</SP> is halogen, hydrocarbyl, -NR<SP>111</SP> 2 , -OR<SP>111</SP> or a heterocyclic group, or a group (E-Z-G). R<SP>111</SP> is a hydrocarbyl group, each E is -O-, -S-, or -NR<SP>111</SP>, E<SP>1</SP> is -S- or -NR<SP>111</SP>, G is -OR<SP>111</SP>, -SR<SP>111</SP>, -NR<SP>111</SP> 2 , -PR<SP>111</SP> 2 , or a heterocyclic ring system, Q is oxygen or sulphur, Z is a bivalent hydrocarbyl radical, and a is 0 or 1. The compounds are prepared by reaction of a compound H(E-Z-E<SP>1</SP>)H or salt thereof with a compound (m) R<SP>1</SP>P(Q) a (Ha) 2  where Ha is halogen, or by reaction of (o) H(E-Z-G) or salt thereof with a compound of formula Examples of these procedures are given to prepare the following specific compounds
Patent GB-867770-A (GB)
Title: Derivatives of bicycloheptadiene
IPC: C07C43/247
Filed: 1959-03-09
Abstract: The invention comprises ethers of the general formula: <FORM:0867770/IV (b)/1> wherein R is a hydrocarbon radical, which may have a hydroxy, alkoxy, chloro, carboxyl or azo substituent, or R may be a furfuryl radical, and a process for preparing these ethers by reacting 1,2,3,4,7,7-hexachlorobicyclo[2,2,1]-hepta-2,5-diene with the appropriate hydroxy compound ROH in the presence of an alkali. In example 1, a mixture of hexachloro-bicyclo-heptadiene, potassium hydroxide and isopropyl alcohol is heated at about 90 DEG C., under reflux, for about 4 hours. The unreacted material is then removed by distillation under reduced pressure; and the residue is dissolved in diethyl ether. The ethereal solution is washed with water, dried over anhydrous sodium sulphate; and the diethyl ether is then removed by distillation under reduced pressure.  The residue is then fractionated under reduced pressure (0,8 mm.) to obtain crude 1,2,3,4,7-pentachloro-7-isopropoxy-bicyclo[2,2,1]-hepta-2,5-diene, which is purified by chromatography.  Examples 2 to 5 describe the reactions using, instead of isopropyl alcohol, the following hydroxy compounds:- ethanol, allyl alcohol, phenol and cyclpenten-3-ol respectively.  Other hydroxy compounds which may be used in the reaction are:- undecyl alcohol, ethoxyethanol, propargyl alcohol, butene and butane diols, cyclohexanol, cyclopentanol, chlorophenol, benzyl alcohol, furfuryl alcohol, ricinoleic alcohol, nonanol, hesperetol, borneol, heptadecanol, fluorenol, chrysazin, azophenol, tetradecanol, heptacosanol, lactic acid, naphthol and phytol.  The pentachloro-bicyclo-heptadiene ethers may be reacted with conjugated dienes such as cyclopentadiene to form Diels-Alder adducts.  The ethers possess insecticidal and fungicidal properties (see Group VI).ALSO:Insecticidal and fungicidal compositions comprise as active ingredient ethers of the general formula <FORM:0867770/VI/1> wherein R is a hydrocarbon radical, which may have a hydroxy, alkoxy, chloro, carboxyl, or azo substituent, or R may be a furfuryl radical.  When tomato plants are sprayed with a solution of pentachloro-isopropoxy-bicycloheptadiene in acetone, they are resistant to spore suspensions of Alternaria solani.  The active compound may also be distributed on an inert carrier such as a diatomaceous earth, or on porous calcium silicate impregnated with a wetting-agent such as an alkyl aryl polyether alcohol.
Patent GB-727969-A (GB)
Title: Improvements in or relating to tipping gear for skips, buckets, and other load discharge containers
Inventor: MORRIS SAMUEL
IPC: B65D88/56
Filed: 1951-04-07
Abstract: 727,969. Lifting gear for raising and tipping skips: pallets. FISHER & LUDLOW, Ltd. July 13, 1951 [April 7, 1951], No. 8111/51. Class 78 (4). A skip 10, Fig. 1, is normally prevented from tipping about the pins 15 by which it is supported from hooks 16 on a lifting, gear by engagement of a pin 30 on the skip with a locking member 26 which can be turned about its pivot 28, Fig. 2, to release the skip, by pivotal movement of an operating member 24 with which the locking member has a pin and cam groove connection. The cam groove is shaped so that when the locking member is in locking position the forces it exerts on the operating member 24 pass through the pivot 25 of that member while, when the pin 30 engages the notch 29 in the locking member 26 as the skip returns to upright position after being tipped, the resultant return of the locking member 26 to its locking position also turns the operating member 24 to its normal position. In the construction illustrated the cam groove comprises a slot 25 in the operating member 24 which can be turned about its pivot by a cord 33 secured to an arm 22 on the locking member. The hooks 16 are of such a depth that they hold the pins 15 captive when the lifting gear is lowered, with the skip on the ground, to release the locking member 26 from the pin 30 so that the skip can be tipped by pushing the lifting gear aside and raising it. The hooks 16 are formed on arm 17 secured one at each of a beam 18, Fig. 4, formed with eyes 19 for engagement by lifting hooks and with clamps 20 by which the gear may be secured to the tines of a lift truck. The point of suspension of the skip is preferably below the centre of gravity of the skip when loaded but above the centre of gravity when empty. The legs 12 permit the insertion of the tines of a lift-truck beneath the skip and enable several such skips to be stacked one above the other.
Patent GB-1064094-A (GB)
Title: Artificial leathers and similar shaped articles
IPC: D04H1/54
Filed: 1964-02-27
Abstract: Artificial leather and shaped articles comprise a non-woven fibrous mat, the fibres of which are constituted of a mixture of two or more synthetic polymers.  The fibres are bonded at their p  points of contact by a bond constituted by at least one but not both or all of the polymers.  The mat may also contain additional fibres of a single natural or synthetic polymer.  The product may be made by forming a fibrous mat of the mixed-spun fibres, impregnating it with a solvent for at least one but not all of the polymers, and removing the solvent but allowing at least part of the dissolved polymer to remain to stick the fibres together. Suitable pairs of polymers are: polyamide and polystyrene; polyamide and polyolefine; polyvinyl chloride and polyacrylonitrile; polyester and polyamide; polyvinyl alcohol and polyvinyl chloride; and polyvinyl alcohol and polyacrylonitrile. Mats of the mixed-spun fibres may be formed by a dry or wet process, e.g. by deposition from an aqueous slurry.  The mat or article may be compressed, e.g. by passage between heated calander rolls, before or after the application of solvent.  Removal of the solvent is effected by heating and or by washing.  Suitable solvents include a methanol solution of calcium chloride, titanium tetrachloride or lithium chloride, various salt solutions, aromatic, cyclic ether, aliphatic hydrocarbon, ketone and cyclic ketone compounds or mixtures thereof.  Included in the solvents there may be fillers, pigments, dyestuffs etc., dissolved or dispersed therein.  A woven fabric of synthetic or natural fibre may be used as a central or base layer for the mat of fibres which is treated to form the artificial leather.