baber/WOPTO huggingface dataset:
Patent GB-177311-A (GB)
Title: Gas apparatus valve or closure mechanism
IPC: C10J3/24
Filed: 1921-01-21
Abstract: 177,311. Humphreys & Glasgow, Ltd., (Chrisman, C. S.). Jan. 21, 1921. Actuating-mechanism.-A toggle valve e actuating mechanism has a spring support for the toggle joint o r has one of the members mounted on a spring-pressed rocker arm so as to allow the valve to lift in the event of an excessive pressure arising in the vessel to which the valve is fitted. In the form shown, the valve 10 is carried by a lever 3 mounted on a shaft 5 supported in bearings 7 on the valve seat 8. The lever 3 is linked by a pair of plates 9 to a lever 1 adapted to be actuated by hand gear on a hydraulic piston connected to the member 11. The lever 1 is pivoted at 2 to a rocker 13 pivoted at 14 and adjustably connected to a sliding member 18 acted on by a spring 16. In a modification the rocker is dispensed with and the link 9 is pivoted to a member slidable against the action of a spring in a socket formed in the lever 1.
Patent GB-104363-A (GB)
Title: Improvements in Apparatus Used in the Manufacture of Artificial Silk.
IPC: D01D7/02
Filed: 1916-02-25
Abstract: 104,363. Courtaulds, Ltd., and Clayton, J. Feb. 25, 1916. Spinning, doubling, and twisting machines; spindle apparatus; build. ing - motions ; thread - guides.- In a machine for use in the manufacture of artificial silk, in which the cellulose after being squirted into a setting-bath is led over guiderollers through a tubular guide into a rotating spinning. box, the boxes 1, Fig. 1, are reciprocated vertically by means situated beneath them, and the tubular guides 12 are stationarily mounted in the covers 13 of a casing 10 enclosing the boxes. The spindles 2<a> carrying the boxes 1 are driven by electromotors 2 carried by a rail reciprocated in vertical guides 4 by a cam 7<a> and levers 8, 5. The levers 5 have forked ends 5<a> engaging knifeedges 6a carried by bolts 6, which have at their lower ends knife-edge pieces 6<b> engaging corresponding pieces 3<a> on the rail. The rotary guides 14, 18 have long bearings 14<b>, 18<b> with extensions 14<c>, 18<c> next to the guides to prevent coiling of the thread upon the shaft in the event of its escape from the guide. The upper guides 14 are rotated from a central shaft 17 by bevelgearing, and the lower guides 18 by worm gearing from shafts 20. Access to the interior of the apparatus may be had through doors 21 in the casing.
Patent GB-547444-A (GB)
Title: Improvements in liquid dielectric compositions
IPC: H01B3/18
Filed: 1941-03-04
Abstract: 547,444. Impregnating-compositions for electric insulation. BRITISH THOMSON-HOUSTON CO., Ltd. March 4, 1941, No. 2927. Convention date, March 6, 1940. [Class 140] [Also in Group XXXVI] A liquid dielectric composition comprises a halogenated polyphenyl hydrocarbon and a nitrated polynuclear aryl hydrocarbon. The halogenated polyphenyl hydrocarbon may be pentachlor diphenyl or halogenated compounds of diphenyl methane, diphenyl ethane, diphenyl ketone or diphenyl benzene. The nitro compound may be o-nitro-diphenyl, 2-4<SP>1</SP>-dinitrodiphenyl, or α-nitro-naphthalene. The compositions .may be used for impregnating kraft paper separators in condensers and in electric cables and high voltage bushings. Specification 374,439 is referred to
Patent GB-1137184-A (GB)
Title: Process for preparing finely divided high polymers having a crosslinked structure
IPC: C08F220/32
Filed: 1966-01-21
Abstract: 1,137,184. Cross-linked epoxy-group containing polymers. TOKUYAMA SODA K.K. 21 Jan., 1966 [22 Jan., 1965; 31 Aug., 1965], No. 2935/66. Heading C3P. [Also in Division D1] A finely divided epoxy group-containing cross-linked polymer is prepared by polymerizing a glycidyl ester of an ethylenically unsaturated carboxylic acid in the presence of a divinyl compound as cross-linking agent and an organic solvent which dissolves the monomers but not the cross-linked polymer or the corresponding polymer containing no divinyl compound. The monomers may be glycidyl acrylate or methacrylate and together with acrylonitrile, styrene, vinyl chloride, acetate or toluene; acrylic or methacrylic acid; or a C 1-4  alkyl ester of acrylic or methacrylic acid and the divinyl compound may be divinyl benzene or sulphone. The solvent may be cyclohexane, petroleum ether, kerosene, carbon tetrachloride, n-heptane, butane or propane. The polymerization may be carried out using benzoyl peroxide. The polymers may be mixed with polypropylene, moulded into a film and dyed, or dyed and used to colour polystyrene and polyvinyl chloride.
Patent GB-1200245-A (GB)
Title: Strap buckle
Inventor: FORD DAVID JULIAN
IPC: A43B3/12
Filed: 1968-01-19
Abstract: 1,200,245. Buckles CARR FASTENER CO. Ltd. 5 Nov., 1968 [19 Jan., 1968], No. 3003/68. Headings E2A and E2B A strap buckle is formed as a one piece moulding of synthetic plastics comprising a base 1 formed with a side wall 4 at each of its opposed longitudinal side edges, the base having a stud receiving aperture 2, a resilient arm 5 being disposed in laterally spaced relation to the base and two substantially rigid arms 6, 7 being provided spaced from the base and resilient arm, the substantially rigid arms defining a slot-like opening 8 aligned with the stud receiving aperture in the base, the arrangement being such that when a strap is threaded over the resilient arm and under both substantially rigid arms so as to extend across the stud receiving aperture, the stud when inserted into said aperture will abut the overlying portion of the strap and deflect the same into the slot-like opening so that the said portion of the strap will be frictionally gripped by portions of the stud and portions of the substantially rigid arms. In the construction shown the resilient arm is curved and has a convex face directed towards the longitudinal outer edge portions of side walls 4 of the buckle; the stud receiving opening is formed with radial slots 3 to enable the stud to be snap engaged through it.
Patent GB-524370-A (GB)
Title: Improvements in and relating to horizontally-pivoted doors
IPC: E06B3/01
Filed: 1939-01-28
Abstract: 524,370. Horizontally-pivoted doors. ECLAIR DOORS, Ltd., and WHITE, A. Jan. 28, 1939, No. 3026. [Class 20 (iii)] A horizontally pivoted door b for an aircraft hangar or like structure comprises a main portion b pivoted about an axis d near its upper edge and when closed occupies an inclined position forming a continuation of the hangar, an extension from the inner side of the axis d being acted upon by counter - balancing and operating means. The door b is carried by levers a pivoted on trunnion d carried by pillars f. The levers a are extended inwards of the axis d and each connected by a link i to a balance weight i guided in vertical channels e connected by girders g to the pillars f. The balance weights, are moved up and down together by screwed shafts o operated through bevel wheels q from handles r at either side of the door. The screwed-shafts o at each side of the door are connected together by a transverse shaft u and bevel gears t. When closed the door is supported on struts w. Specifications 399,315, and 450,656, are referred to.
Patent GB-846264-A (GB)
Title: Improvements in and relating to electric refrigerator motor-compressor units
Inventor: KITSON JOSHUA WILSON
IPC: F04B39/02
Filed: 1956-01-31
Abstract: 846,264. Crank-shafts. ENGLISH ELECTRIC CO. Ltd. Jan. 31, 1957 [Jan. 31, 1956], No. 3055/56. Class 80 (2). [Also in Groups XXVIII and XXXIV] In a vertical crankshaft 6 having a bottom bearing 13, lubricant is fed to the walls of said bearing through a lateral passage 24 extending outwardly from a central longitudinal passage 22a of the shaft in communication with a lubricant reservoir via a filter 19, is fed up the bearing walls along a thread 25 formed on the exterior of the shaft, and is then fed inwardly through a further lateral passage 26 to a further longitudinal passage 22 to other parts of the shaft requiring lubrication.
Patent GB-437720-A (GB)
Title: Improvements in or relating to the mechanical recording of oscillations, particularly sound oscillations, on a carrier
IPC: G11B11/00
Filed: 1934-01-30
Abstract: 437,720. Sound -- recording circuits; phonographic recorders. PHILIPSMILLER NAAMLOOZE VENNOOTSCHAP, Emmasingel, Eindhoven, Holland. Jan. 30, 1934, No. 3124. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 2, 1934]. [Class 40 (iv)] [See also Group XXXVIII] In the production of a hill - and - dale record of sound or like vibrations, by means of a single cutting member, the non- linear influence of the depth of cut is compensated for in various ways, as for example by controlling one or more of the electrical or other factors on which the movements of the cutter depend. The invention is particularly applicable to the production by means of a vibrating chisel acting on a film having a transparent base and an opaque layer, of a sound record which is optically reproducible. The Figure shows an electrical method of compensating for the influence of the depth of cut. An armature 28, which carries the cutting chisel 9, and which is vibrated by the action of currents in speech coils 30, 31, is biassed by a current flowing through a coil 37, which current is varied by the amplifier in dependence on the movements of the armature. For this purpose, the movements of the armature 28 may be used to influence the capacity of a variable condenser in the amplifier circuit feeding the coils. A similar arrangement, omitting the additional biassing coil, may be adopted. Another method of carrying out the invention consists in working on the curved part of the amplifier characteristic in such a manner that the non-linearity of the frequency characteristic of the cutter is compensated for by that of the valve characteristic. The desired effect may also be obtained by suitably arranging the magnetic field of the cutter, e.g. by appropriately designing the polepieces of the magnet. Instead of applying an electrical bias to the cutting member, a mechanical bias may be produced, to provide a force which varies non-linearly with the deflection of the cutter. Such a device may consist of a wedge-shaped plunger moving in a liquid such as oil.
Patent GB-712933-A (GB)
Title: Improvements in or relating to ball-point pens and in alloys therefor
IPC: B43K1/08
Filed: 1952-02-06
Abstract: The tube forming the housing for the ball of a ball-point pen is made of an alloy containing 35-50 per cent palladium, 17-35 per cent. copper, the remainder of at least 15 per cent. being silver. Without reducing the silver content below 15 per cent, the alloy may also contain up to a total of 10 per cent. of gold, platinum, iridium, rhodium, osmium or ruthenium, and up to a total of 5 per cent. iron, nickel, cobalt, zinc or tin.
Patent GB-1380417-A (GB)
Title: Electrical charge injection
IPC: H05B33/26
Filed: 1971-01-26
Abstract: 1380417 Electroluminescence EMI Ltd 18 Jan 1972 [26 Jan 1971 15 April 1971 20 May 1971] 3182/71 9551/71 and 15962/71 Heading C4S [Also in Division H2]  An electroluminescent device includes at least one electrode 3 of at least one filamentary member formed of or coated with carbon, and arranged with one end in contact with or embedded in the EL material 1. Filamentary members are defined to include fibres, fine metallic wires or needle-like pointed rigid members. Fig. 1 includes EL material of anthracene, Au or Se-Te alloy electrode 2 for positive charge injection and carbon fibres 3 for negative charge injection, which may be embedded by melting. Fig. 2 (not shown) includes glass discs (5, 6), tin oxide electrode (7) and single fibres (8) also replaceable by fibre bundles. Fig. 3 (not shown) includes a selectively addressable display panel with glass or plastic disc (9). Fig. 4 (not shown) includes tetracene doped anthracene, and since the radiation spreads progressively from the fibre tip with voltage differently doped regions (15, 16) produce a range of emitted colours and serve as a voltmeter, or may be used, for signalling, or colour TV pictures. Fig. 5 (not shown) includes glass tube (21) or an opaque tube with a transparent window filled with molten anthracene in an inert atmosphere via hole (24) and perfected by Bridgeman growth. Differently doped regions may again be provided. Fig. 6 (not shown) includes fibre bundles (30), (31), with the same or a different number of fibres in'tubes (32), (33), EL crystal (34), Fig. 7(a) (not shown), includes coaxial bundles (35), (36). Crystals (34), (39) may have protective coatings, and the respective tubes need not be transparent and may be of plastics or ceramic. Operation may be D.C. and devices with positive and negative charge injecting electrodes may be A.C. operated. Dimensions are given and A.C. frequencies may be 50 Hz or up to 1 mHz. EL materials may also be perylene, naphthalene or stilbene and the charge injecting electrode may be a stripped electrical cable with a central core of separated Cu strands coated with carbon.
Patent GB-772766-A (GB)
Title: Improvements in or relating to automatic air valve assemblies
IPC: F16K24/06
Filed: 1955-02-03
Abstract: 772,766. Drainage and sewerage. MORGENSTERN, A. H. Feb. 3, 1955 [Feb. 5, 1954], No. 3205/55. Class 33. [Also in Group XXIX] A valve device for use with waste pipes and drains comprises a housing 10 provided with an air admission aperture 13 and a ventilation pipe connection 18 connected by a passage containing a valve 25 which opens automatically when a vacuum occurs in the drain or waste so that air is admitted thereto and the liquid odour seals are not sucked away, and a second valve 16 which is normally open to permit the passage of air but closes automatically on its seat 14 when a backwash occurs in the drain or waste pipe. The valves are mounted in an insert 11, 12 secured to the housing 10 and the connection 18 by soldering 28, 29. A rim 30 on the insert prevents the valve 25 from being displaced. The cone type valve 25 may be replaced by a mushroom type of valve. Baffles 21 with serrated under surfaces are provided between the valves to promote condensation. Any condensate so formed collects in a well 31. A similar well 24 is arranged below the valve 25. The valve 16 which acts as a float has an apertured guide cylinder 19 guided by ribs 17 on the insert.
Patent GB-598593-A (GB)
Title: Improvements in sensitive photographic materials
IPC: G03C1/815
Filed: 1945-02-09
Abstract: 4-Dimethylaminobenzalpyruvic acid is prepared by adding an aqueous methanol solution of potassium hydroxide to a mixture of p-dimethylaminobenzaldehyde and pyruvic acid, adding methyl alcohol, diluting with water, and acidifying.
Patent GB-119606-A (GB)
Title: Improvements in Cutting Mechanism for Severing Material into Lengths.
IPC: D06H7/02
Filed: 1918-02-25
Abstract: 119,606. Hoe & Co., R., (Hoc & Co., R.). Feb. 25, 1918. Rotary type for cutting rectilinearly.-In machines for severing webs of material into lengths, and more particularly machines having co-operating shear-blades mounted on a pair of rotating cylinders, the severed leading edge of the material is freed from the cutters and directed into its proper path by means of a brush 6, 7 placed in the cylinder 4 behind the cutter blade 2. During the cutting operation, the bristles of the brush are bent back by the edge of the blade 1 of the cylinder 3. 'When the brush works clear of the blade, the bristles throw the leading edge of the material upwards and forwards. The cylinder 3 may be provided with a stripper 14.
Patent GB-920278-A (GB)
Title: Production of unsaturated aliphatic aldehydes and ketones
Inventor: GODIN GEORGE WILLIAM
Filed: 1960-01-30
Abstract: Unsaturated aliphatic aldehydes and ketones are obtained by reacting at an elevated temperature an olefine with an aqueous solution or suspension of mercuric perchlorate or a mercuric sulphonate, preferably in the presence of the corresponding acid. The salt can be generated in situ by oxidation of mercury or the corresponding mercurous salt with a ferric salt.  Examples describe the preparation of acrolein and methacrolein.
Patent GB-179141-A (GB)
Title: Improvements relating to interrupters for electric circuits
IPC: H02H3/06
Filed: 1922-02-06
Abstract: 179,141. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Butcher, C. A.). April 25, 1921, [Convention date]. Cut-out arrangements for direct-current circuits cause the operation of the cut-outs only when a sudden change occurs in the current, as on shortcircuit, and the cut-outs are restored automatically to the closed position by a device responsive to the restored potential of the circuits when the short-circuit is removed. As shown in Fig. 1, applied to a three-wire system supplied at two points 1, 4, the circuit-breaker 3 is maintained closed by the coil 5 energized through the closed relay 6 from the auxiliary source 16. The relay 6 is held closed by connection with the auxiliary source as long as the relays 8, 9 are maintained closed by their connection with the line. In the event of a short-circuit the sudden increase in current energizes the current transformers 12, 13 momentarily and supplies current to actuate the relays 10, 11. These relays cause the closure of a self-maintaining relay 14, 17 which short-circuits. the winding of the relay 6. The relay 6 thereupon opens to open-circuit the holding coil 5 of the main circuit breaker which assumes the "off" position. The relays 8, 9 being no longer energized assume the " off " position until the short-circuit is removed and the potential restored, whereupon the various relays take up their former positions, the coil 5 is again energized and the circuit again closed. The application to a line having a single source of supply is described also. In this form a resistance is connected in shunt to the circuit-breaker terminals in each line and differential relays are employed for the restoring circuit, one coil in each case being connected across the resistance and the other between a line and the neutral.
Patent GB-256286-A (GB)
Title: Improvements in, or connected with, internal combustion engines
IPC: F01B7/14
Filed: 1925-02-07
Abstract: 256,286. Brown, F. B. Feb. 7, 1925. Four-stroke-cycle engines; cylinders, heads of and cooling. -The cylinder head is formed with an auxiliary cylinder 3 for each main cylinder 1 of the engine, a piston 11 working in each auxiliary cylinder being driven from a half-speed shaft 13. The piston 11 is timed to be at' its lowest position at the end of the exhaust stroke and at its uppermost position when explosion occurs. The inlet and exhaust valves 7 are mounted in the head over the main piston, being driven from the cam shaft 9. The head and main cylinders are cooled by a water or other fluid jacket 18, the admission to the jacket being at 19 in the head and the outlet at 20 by the side of the main cylinder block.
Patent GB-510461-A (GB)
Title: Improvements in the construction of sun blinds or awnings
IPC: E04F10/06
Filed: 1938-02-04
Abstract: 510,461. Sun-blinds. PAGE, A. C. Feb. 4, 1938, No. 3537. [Class 20 (iii)] The members 1, 2, 3 of the telescopic supporting arms of a sun-blind or awning carry locking devices 4, 7 which lock the members together when the blind is extended. Further, the locking device 4 serves to lock the member 1 to a guide plate 5 when the blind is in its. closed position. The locking device 4 shown is spring-controlled and is urged into its locking engagement with the plate 5 by means of a fixed bar 8. Upon extending the blind the members 2, 3 first move outwardly and as they reach the limit of their travel the member 2 engages with the member 1 and moves it sufficiently to enable the device 4 to be lifted by its spring from its engagement with a recess 6 in the plate 5. The member 1 then moves outwardly and is locked to the member 2 by the locking device 4. When closing the blind all three members first move inwardly together the release of the device 4 from the member 2 being ultimately effected by the bar 8, and the unlocking of the device 7 being effected by its engagement with the front end of the member 1. In a modification the guiding plates 5 are pivotally mounted and the inner end of the member 1 carries a collar engaging with a horizontal overhead track.
Patent GB-1217663-A (GB)
Title: Razor blade
Inventor: FISCHBEIN IRWIN WILLIAM
IPC: B26B21/60
Filed: 1969-01-22
Abstract: 1,217,663. Coated razor blade. GILLETTE CO. 22 Jan., 1969 [1 Feb., 1968], No. 3630/69. Heading B2E. The edge of a razor blade is coated with a polyalkylene ether or polyperfluorocarbon ether polymer, the alkylene radicals of the polyalkylene ethers comprising 2 to 4 carbon atoms and the perfluorocarbon radicals of the polyperfluorocarbon ethers comprising 2 to 3 carbon atoms. The blade edge may be carbon steel, hardenable stainless steel, and may be further coated with other metals or alloys such as chromium. The polyether coatings may cover only the portion immediately adjacent to the ultimate edge. The polyether may be polyalkylene ether glycols, e.g. polyethylene glycols which can be linearly extended with a diisocyanate which also acts to cross-link the polymer; polyperfluorocarbon ethers terminated on one end by a perfluoro alkyl group and on the other end by a perfluoro acid fluoride radical optionally converted to the corresponding carboxylic acid, salts of the carboxylic acid, an ester, an amide, or hydrogen capped, the coating of which may be cross-linked by heating in the presence of a free radical generator, e.g. organic hydroperoxides and peroxides. The polyether coatings are applied as a solution by dipping, spraying. Heat treatment of the coating may be carried out in a vacuum, in hydrogen or cracked ammonia, or argon or nitrogen or in a slightly oxidising atmosphere.
Patent GB-901214-A (GB)
Title: Improvements relating to communication and like transmission systems
Inventor: REID ERIC ROBERT MCEWAN
IPC: H04J1/10
Filed: 1960-02-02
Abstract: 901,214. Multiplex systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 20, 1961 [Feb. 2, 1960], No. 3712/60. Class 40 (4). In a frequency division multiplex carrier system a coupling circuit comprising two hybrid transformers and an impedance bridge connects five branch paths to a common path, one of the branch paths being for supervision and being connected into the circuit as a phantom. As shown, the branch paths P1 and P2 are connected to the differential windings w1, w2 of a hybrid H1, and the branch paths P3, P4 are connected to the differential windings w1<SP>1</SP>, w2<SP>1</SP> of a hybrid H2. The commoning windings of the hybrids w3, w3<SP>1</SP>, are connected across opposite diagonals of an impedance bridge IB and from centre-taps X, Y, connect the fifth branch path P5. One of the arms of bridge IB comprises the input, or output, depending on which way the coupling circuit acts, of an amplifier A connected to the common path P6. Matching is discussed for the case of symmetrical hybrids to determine the value of resistors Rs1 to Rs7, given the value of resistor Rs8 or Rs9. The hybrids need not, however, be symmetrical. By using two such coupling circuits involving four hybrids and two bridges, the bridges each having an arm comprised by one of the differential windings of a fifth hybrid the commoning winding of which is connected to the common path, ten branch paths may be coupled.