baber/WOPTO huggingface dataset:
Patent GB-434354-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: B60K5/12
Filed: 1933-12-29
Abstract: 434,354. Motor-vehicle driving-gear. HOBBS, H. F., 58, Lillington Road, Leaming- ton Spa. Dec. 29, 1933, No. 36600. [Classes 79 (ii) and 79 (iv)] In power transmission mechanism comprising a gear for varying the speed ratio between a driving member and a driven member and of the kind in which the torque or driving reactions on the gear housing or other reaction part are in the form of high frequency impulses, the housing or other reaction part B is connected by a torque tube D to the rear axle housing C of a motor-propelled road vehicle, and the reaction part B is flexibly connected to the crankcase or vehicle frame E<2>. The tube D is preferably specially resilient in torsion, and is rigidly bolted to the parts B and C by flanges d welded one to each end of the tube. The flexible connection between the parts B and E<2> may comprise a spherical or frusto-spherical joint E, E<1>, the bearing E<1> being supported by a rubber ring F. The flywheel A is connected to the gear shaft H<1> by a universal coupling H<2>. The parts B, C, D are preferably designed so that their natural frequency of vibration differs from that of the gear itself. Specifications 358,732 and 435,988, [both in Group XXIV], are referred to.
Patent GB-1365523-A (GB)
Title: Perforated drums
IPC: G03G15/05
Filed: 1971-08-04
Abstract: 1365523 Rotary drum filter; rotary sieves RICOH KK 4 Aug 1971 [4 Aug 1970 3 March 1971] 36614/71 Headings BID and B2H [Also in Divisions F2 and G2] A rotary perforated drum (e.g. for an electrophotographic duplicator or for use as a screen) comprises a perforated screen 113 to two opposite edges of which are secured respective attaching strips 114, 115 which are mounted on frames 101, 108 relatively movable to tension the screen.  The screen may comprise fine wires 12, 51 of steel (e.g. stainless) Al, Zn, Cu, Ni or Cr forming a screen of 100 to 300 mesh, on which is sprayed or vacuum deposited a photoconductive layer 13, 52 of selenium, selenium sulphide, cadmiuim sulphide dispersion, or poly- N-vinyl carbazole. An insulating layer 14, 53, e.g. of PTFE may be deposited on the other side of the screen inside the drum. The screen may be stiffened by folding back edges 113a, 113b. The strips 114, 115 may be soldered to the screen and to locate them in the frames may have either flanges 114a, 115a or radially inward pegs or holes for screws to act as such pegs. The strips may be mounted on the frames as shown in Fig. 13, using holes 114b, 114c 115A, 115a. The frames. The drum may include two frames 101, 102 held spaced apart by rods 103, 104, 105. One edge of the screen may be secured to one 101 of these frames. The other 108 or each frame to which the screen is secured may be movable axially of the rods relative to its adjacent frame 102 by screws 109. If the frame 108 is the other side of the frame 102 the screws may pass through tapped holes in the frame 108 and enter blind pockets in the frame 102.
Patent GB-1218343-A (GB)
Title: Improvements in or relating to electromagnetic relays
Inventor: POWELL ANTHONY
IPC: H01H50/02
Filed: 1966-05-09
Abstract: 1,218,343. Attracted armature relays. SEEMARK SWITCHES Ltd. 9 Aug., 1967 [9 May, 1966], No. 36650/67. Divided out of 1,218,342. Heading H1N. An electromagnetic relay has a coil former or bobbin 31 having one end cheek 30 formed as a printed circuit board through which one end of the relay core 40 passes to co-operate with an armature 38 pivoted at 37 on an L-shaped yoke 35. A contact 4 on an armature extension 39 moves between fixed contacts 43, 44 and is biased against the latter by a leaf spring 50 engaging the other end of the armature. The relay coil is connected in a circuit including a transistor 52, capacitor 53 and resistor 54 all of which are supported from the board 30 and connected to printed circuit elements thereon. A two-part plastics casing (not shown) may be mounted to enclose the relay, the casing part on the armature side of the board at least being translucent to admit light to a photo-electric cell (not shown) spaced from the relay armature and mounted within the casing.
Patent GB-1022308-A (GB)
Title: Crystal oscillator circuit
IPC: H03B5/36
Filed: 1964-09-08
Abstract: 1,022,308. Harmonic mode crystal oscillators. STANDARD TELEPHONES & CABLES Ltd. Sept. 8, 1964 [Sept. 9, 1963], No. 36741/64. Heading H3T. In a harmonic mode transistor oscillator a frequency determining crystal is connected between a tap on the collector tank circuit 1, 2 (not shown), and the emitter, and the tank circuit has a low Q as a result of a relatively low impedance circuit 10 connecting the collector to the collector supply. In the circuit shown the tank circuit is tuned by the capacitance of the transistor.
Patent GB-1494858-A (GB)
Title: Hot blast stoves
IPC: F23L15/02
Filed: 1975-09-08
Abstract: 1494858 Hot blast stoves SOC ANON DES ANCIENS ETABS PAUL WURTH 8 Sept 1975 [20 Sept 1974 30 Jan 1975] 36863/75 Heading F4K The upper portion of a hot blast stove comprising a cupola portion 4 connecting a combustion chamber 2 to a checker chamber 3 is enclosed by a jacket space 26 through which is circulated a fluid at a pressure approximately equal to that prevailing within the stove. In the form shown, for instance in the "on gas" phase (with valves 36 and 48 open and 38 and 46 closed), combustion air at substantially atmospheric pressure and en route to the burner 6 of the combustion chamber is drawn by the fan 37 through inlet means 50, 44, 30, the jacket space 26, connection 28 and duct 32, into the fan casing whence it flows via a preheater 12 to the burner 6. At this time the burner combustion gases within the stove are at atmospheric pressure. In the "on blast" phase (with valves 36 and 48 closed and 38 and 46 open) high pressure air from an inlet 40 flows through the jacket space 26 to the checker chamber inlet 14 for heating. The heated blast air is discharged from the stove through a valved outlet 16 which is closed during the "on gas" phase. In a further arrangement (Fig. 2) the fluid in the jacket 26 is an oil circulated by a pump (68) in a closed circuit including a heat exchanger (66). The circuit fluid is maintained at the stove pressure at least during the "on blast" phase by a compensator device (74) responsive to pressure changes at the inlet (70) for high pressure blast air en route to the checker chamber 3. The heat exchanger (66) is controlled by a thermostat sensing the temperature of the circulating oil such that the inner wall surface of the cupola is maintained above the dew point temperature of the gases in the stove.
Patent GB-1125249-A (GB)
Title: Vibration detection
Inventor: CRAGG WILLIAM DONALD
IPC: G01H11/06
Filed: 1967-08-11
Abstract: 1,125,249. Measuring vibrations electrically. STANDARD TELEPHONES & CABLES Ltd. Aug. 11, 1967, No. 36912/67. Heading G1N. [Also in Division H4] Vibrations of an electrically conductive body are detected capacitatively by locating an electrode of low acoustic impedance adjacent to but spaced from the body surface by a resilient insulating layer and measuring the capacitance between the electrode and the body surface. For measuring vibrations of the forehead during speech due to bone conduction, the electrode 13, Fig. 2, of insulating material coated at 14 with aluminium and provided with holes 18 to give it a low acoustic impedance is placed against the forehead, down on the skin providing the resilient insulating supporting layer. The electrode and the skin are then connected to a voltage source. For measuring the vibration of an electrically conducting machine part, the electrode is supported above the surface by a resilient fine mesh woven fabric sheet.
Patent GB-1438547-A (GB)
Title: Automatic locking device for a vehicle safety belt
Inventor: REX G I
IPC: A62B35/00
Filed: 1973-08-06
Abstract: 1438547 Safety belt locking device AUTOINDUSTRI AB 6 Aug 1973 [9 Aug 1972] 37231/73 Heading A3V A safety belt locking device includes a pendulum 42 swingable about the edge of a support spaced from a line through its centre of gravity, and supporting a yoke 44 pivoting about a shaft transverse to said line. The pendulum is surmounted by a disc 56 with a depending flange 58, overlying the flange 60 on a support 46. The yoke includes an arm 78 having a tooth 80 for engaging a toothed disc of the reel locking mechanism, and a conical elevation 70 engaging the top of disc 56. The yoke is normally urged anticlockwise about stub shafts 72 by weight arms 76. If the vehicle is accelerated or decelerated beyond a predetermined limit in any direction disc 56 pivots about a corresponding point on flange 60. Such pivoting, swings the arm of the yoke into an active position so that relative movement between the toothed disc and a rotor fixed to the reel shaft locks the reel.
Patent GB-1394221-A (GB)
Title: Process for the preparation of monomethylethers of dihydroxy benzenes
IPC: C07C43/23
Filed: 1972-08-11
Abstract: 1394221 Monomethylethers of dihydroxybenzenes HAARMANN & REIMER GmbH 11 Aug 1972 [13 Aug 1971] 37491/72 Heading C2C The invention comprises a process for the preparation of a monomethylether of an unsubstituted dihydroxybenzene or a dihydroxybenzene which is symmetrically substituted by one or more methyl or ethyl radicals wherein the dihydroxybenzene is reacted with methanol in the liquid phase at 200-240‹ C. in the presence of boron phosphate as catalyst. Specified dihydroxybenzenes are pyrocatechol, resorcinol and hydroquinone and their symmetrical mono- and dimethyl and ethyl substituted homologues. The boron phosphate catalyst may be employed as a dust or pellets or may be supported on a carrier substance, preferably silica gel.
Patent GB-1271396-A (GB)
Title: Improvements in interlocks for folding box corners
IPC: B65D5/30
Filed: 1969-07-28
Abstract: 1,271,396. Corner joints. KLIKLOK CORP. 28 July, 1969 [2 Aug., 1968], No. 37763/69. Heading B8P. Box corner joints are formed by folding slotted flaps 16, 216 over slotted wall panels 13, 213 respectively, shown in the R.H.S. of Figs. 1, 2, to interlock as shown in the L.H.S. of Figs. 1, 2. Tips 27, 227 in wall panel engagement slots 23-25, 223-225 are snapped outwardly past an edge of the appropriate flap slot which may be substantially rectangular 20-22, Fig. 1, or curved 220-222, Fig. 2, to resist withdrawal of the flap 16, 216 from the insertion slot 18, 218 in the wall panel 13, 213.
Patent GB-1119985-A (GB)
Title: Device for imparting horizontally oscillatory rotating movement to articles
IPC: H04J3/10
Filed: 1965-09-03
Abstract: 1,119,985. Display devices. MATSUSHITA ELECTRICAL INDUSTRIAL CO. Ltd., and KOKUSAI DISPLAY KOGYO K.K. 3 Sept., 1965 [4 Sept., 1964; 24 Nov., 1964; 16 June, 1965; 30 June, 1965], No. 37822/65. Heading G5C. A display device in which oscillatory movement is imparted to an article or sign comprises an oscillatory member 1-2 with an arm 9-2 carrying a permanent magnet 10-2 which is momentarily attracted or repelled by momentary current flow through an electromagnet 8-2, return movement being effected by a torsional spring 5-2 supporting and fixed to the member 1-2. Electromagnet 8-2 is energized by return movement of member 1-2 actuating a switch (a) with respectively movable and stationary contacts 26, 25 (Fig. 2), or (b) comprising a transistor (13) which passes current when magnetic flux is detected in the core of magnet 8-2 due to proximity of the magnet 10-2 (Fig. 1, not shown). In modifications (Figs. 10-13, not shown), the support 2-2 for member 1-2 is itself suspended from a fixed member and oscillates oppositely to member 1-2. The member 1-2 and optionally support 2-2 may carry a sign A-2 and/or display articles.
Patent GB-1220587-A (GB)
Title: Polysiloxane compositions and textile treatment therewith
Inventor: AGNEW WILLIAM
IPC: D06M15/65
Filed: 1967-08-17
Abstract: 1,220,587. Polysiloxane / aminoplast / aminemodified epoxy resin textile-treating compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 Sept., 1968 [17 Aug., 1967], No. 37884/67. Headings C3B, C3R and C3T. [Also in Division D1] A textile-treating composition comprises (a) 100 p.b.w. of an organopolysiloxane containing silicon-bonded hydrogen atoms (b) 10-500 p.b.w. of a thermosetting resin, (c) 1-50 p.b.w. of a catalyst for (b), and (d) 50-300 p.b.w. of the reaction product of an epoxy resin with a polyamine, there being 1-5 epoxy groups in the resin per active hydrogen atom in the polyamine. Preferably, the siloxane (a) contains 0À25-1 H atoms per Si atom, the organic groups being methyl, ethyl or phenyl; the resin (b) is a urea- or melamine-formaldehyde resin, optionally methylated, trimethylol ethyleneurea or dimethylol hexahydropyrimidone; the catalyst (c) is zinc chloride or nitrate, MgCl 2  or an amine hydrochloride; product (d) is obtained from diphenylol alkane/epichlorhydrin resins and poly-ethylene- or -propylene - polyamines or N : N - bis(3 - aminopropyl)methylamine at 20-70‹ C. in an organic solvent; the composition comprises 0À5-5 wt. per cent of (a). In examples (a) is a mixture of trimethylsilylended polydimethylsiloxane and polymethylhydrogensiloxane, (b) is a urea- or melamineformaldehyde resin, (c) is MgCl 2 , Zn(NO 3 ) 2  or an amine hydrochloride, and (d) is obtained from a polyglycidyl ether of bisphenol A and diethylene triamine or N : N - bis(3 - aminopropyl)methylamine; the products are dilute aqueous solutions also optionally containing urea, and are used to treat fabrics of cotton or cotton/polyester, which are then dried, and cured at 150-160‹ C. for 5 mins.
Patent GB-1160970-A (GB)
Title: Waveform Sampling System
IPC: G01R31/3193
Filed: 1966-08-24
Abstract: 1,160,970. Circuit testing. TEXAS INSTRUMENTS Inc. Aug.24, 1966 [Dec. 7, 1965], No. 37971/66. Heading G1U. The description repeats a large part of that in Specification 1,160, 969), especially that part concerned with the sampling system used in making dynamic tests. The claims are particularly directed to this sampling system.
Patent GB-1437927-A (GB)
Title: Dodecadienoic acid alcohol and esters thereof and use in insect control
IPC: C07C53/10
Filed: 1974-08-30
Abstract: 1437927 Dodecadienyl acetate RESEARCH CORP 30 Aug 1974 [31 Aug 1973] 37985/74 Heading C2C [Also in Division A5] Dodeca - 7,9 - dien - 1 - yl acetate, in particular trans - 7 - cis - 9 - dodeca - dien - 1 - yl acetate, used as an insect attractant in control methods, is prepared in a sequency of steps by reducing the trans 7-cis trans-9-dodecanoic acid with an organo metallic reducing agent to the alcohol which is then acetylated, and the mixture separated chromatographically. A process is described in which suberic acid is esterified, e.g. with methanol, converted to alkyl-7-bromoheptanoate which is oxidized with a mild base, e.g. pyridine-N-oxide to alkyl 7-oxoheptanoate, which is reacted with diethyl-2-(cyclohexyl imino) ethane phosphonate in the presence of sodium hydride in tetrahydrofuran to yield alkyl 9-oxo-oct-7-enoate which is reacted with propyltriphenylphosphonium bromide followed by saponification to the trans-7-cis,trans-9- dodeca-dienoic acid. The acid is then reduced, e.g. with lithium aluminium hydride or sodium dihydro-bis-(2-methoxy ethoxy) aluminate to the alcohol and acetylated. The compounds are used as insect, e.g. Lobesia botrana attractants in insect control methods.
Patent GB-968304-A (GB)
Title: Process for the production of geminal dimercaptans
Inventor: FABIAN JURGAN
Filed: 1962-10-08
Abstract: Nigrogen free gem-dimercaptans are made by treating aliphatic or alicyclic ketones with H2S in the presence of ammonia or amines.  A polar solvent e.g. alcohol, dimethyl formamide, or dimethyl sulphoxide, is used, and cooling to 0 DEG C. is desirable. In examples 1, 1-dimercaptocyclohexane, 1, 7-dimercapto cyclopentane and 2,2-dimercaptopropane are prepared in methanol, in the presence of morpholine, and 2, 2-dimercaptobutane is prepared in dimethyl formamide saturated with ammonia.
Patent GB-1085557-A (GB)
Title: A system for measuring the electrical conductivity of liquids
Inventor: BROWN NEIL LEWIS
IPC: G01N27/02
Filed: 1965-09-06
Abstract: 1,085,557. Electro-physical measurement. BISSET-BERMAN CORPORATION. Sept. 6, 1965, No.38022/65. Heading G1N. A system for measuring the conductivity of sea water in its natural location comprises an encapsulated "mutual inductance" probe having two coaxial torroids magnetically and electrostatically screened, so that the coupling is completed by a loop of sea water through and around the coils. The coils may be arranged in a back-to-back circuit to provide a differential output indicative of the resistance (salinity) of the water or may be connected as a variable coupling in the feedback path of a phase shift oscillator. Temperature and pressure sensors may be mounted on the probe to provide compensating signals. Differential circuit Fig. 1. The two torridal windings T 1 , T 2  are shown linked by a loop of sea water Rw. Winding T 1  is energized from an oscillator 10 which also provides a signal through two ratio transformers 12, 14 and temperature compensating network 16. The difference between this signal and the output from T 2  is detected by a synchronous detector such as that illustrated in Fig. 3 (not shown). In use the system is balanced by ratio transformer 14 to give a null reading with a liquid of known conductivity; it is then rebalanced by ratio transformer 12 using the sample liquid. The transformers 12, 14, are provided with decade dials, and may each be arranged as illustrated in Fig.2 (not shown). Compensation circuits. Temperature compensation may be provided by a platinum resistance thermometer R T  in a bridge circuit Fig. 5 (not shown). A closer approximation to the temperature coefficient of sea water is given by a double bridge circuit with two platinum resistance elements Fig. 6 (not shown). A further refinement is the addition of a thermistor in the link between the two bridge circuits. Pressure compensation may be provided by a pressure responsive device actuating a potentiometer in an R. C. network including a temperature responsive resistor to provide temperature compensation for the pressure responsive signal. Phase shift oscillator arrangements. As described with reference to Figs. 9, 10 (not shown) an R. C. phase shift network is connected in a loop between two amplifiers and the loop is completed through the probe, with a quadrature voltage added to the probe output signal. In this arrangement the double-bridge-temperature-compensating- circuit is connected between auxiliary coils on the probe torroids. In Fig. 10, the pressure compensation signal is also shown injected in series with the probe output. Measurement may be made in terms of frequency variation or by adjusting a coupling resistor 510 between the auxiliary coils to null the frequency shift.
Patent GB-967626-A (GB)
Title: Improvements relating to steam iron sole plates
IPC: D06F75/18
Filed: 1960-11-07
Abstract: 967,626. Steam irons. HOOVER Ltd. Nov 7, 1960 [Nov. 18, 1959], No. 38226/60. Heading D1A. A sole plate for a steam iron has a downwardly opening recess 25 (Fig. 1) connected by a port 26 to a flash boiler 22, and a readily removable closure member 44 almost fills the area of the recess but leaves round it a peripheral steam outlet, removal of the closure member 44 giving access to the port 26 and to steam passages 27-31 for cleaning. The floor 23 of the boiler 22 slopes down to the port 26. The member 44 has a peripheral flange extending into a peripheral groove 32 in the sole plate. A single screw 49 holds the member 44 in position, its lower face being slightly above the ironing surface to form a cavity 50 (Fig. 1) connected to steam distributing grooves 37.... 43 (Fig. 2). The flash boiler 22 is covered by a stainless steel disc 18 formed with a part-spherical seat 19 to receive a valve member 21, the parts 19, 21 forming a pressure contact joint when assembled.
Patent GB-1505877-A (GB)
Title: Process of imparting wettability to a battery separator mat of compressed non-woven olefin polymer fibres
IPC: H01M50/489
Filed: 1975-09-17
Abstract: 1505877 Non-woven battery separator; wettable fabric W R GRACE & CO 17 Sept 1975 [21 Oct 1974] 38231/75 Headings DIP and D1R [Also in Divisions C3 and H1] Wettability is imparted to a battery separator mat of compressed non-woven fibres of an olefin polymer by a process in which the mat is subjected to conditions which effect graft polymerisation of the olefin polymer with at least one grafting monomer which is acrylic acid, methacrylic acid, or an ester formed between acrylic or methacrylic acid and an alkanol substituted by one or more polar groups. The mat may be produced by extruding a heated polyolefin through multiple die openings into a gas stream which attenuates the polyolefin into fibres, collecting said fibres on a collecting device, calendering to compact the mat formed, contacting the mat with an aqueous solution of a water-soluble peroxy compound, rinsing the mat with water and immersing the rinsed mat in an aqueous solution containing a redox catalyst and a monomer selected from acrylic acid, methacrylic acid, 2-(N, N-diethylamino) ethyl acrylate or 2-aminoethyl methacrylate to cause graft polymerisation of said monomer on to the polyolefin. Mats of polypropylene fibres are treated in the Examples.
Patent GB-1426408-A (GB)
Title: Dentifrice composition
IPC: A61Q11/00
Filed: 1974-09-03
Abstract: 1426408 Dentifrice KAO SOAP CO Ltd 3 Sept 1974 [14 Sept 1973] 38517/74 Heading A5B A dentifrice comprises (a) an anionic, surface active carboxylate, sulphonate or sulphate having 8-22 carbon atoms and at least one double bond in the hydrophobic group and (b) a water-soluble secondary phosphate. Surface active agents specified include: sodium oleate, sodium linoleate, sodium linolenate, sodium ricinoleate, sodium oleyl sulphate, a sodium alpha-olefin sulphonate, and alkali metal salts of decenoic acid, undecylenic acid, linderic acid, lauroleic acid, physeteric acid, Tsuzuic acid, myristoleric acid, zoomaric acid, elaidic acid, eicosenoic acid, cetalic acid, alpha-eleostearic acid, beta-eleostearic acid, cis- 9-decenyl-sulphate, 10-undecenyl-sulphate, cis- 9-dodecenyl-sulphate, 4-tetradecenyl - sulphate, cis-9-hexadecenyl-sulphate, 11-eicosenyl - sulphate, 11-docosenyl-sulphate, linoleyl-sulphate, alpha- or beta-oleostearyl - sulphate, linolenylsulphate and ricinoleyl-sulphate. Phosphates specified include: disodium hydrogen phosphate and dipotassium hydrogen phosphate. Other ingredients specified include calcium hydrogen phosphate dihydrate, glycerol, sorbitol, Irish moss, sodium lauryl sulphate, anticeptic, flavouring, perfume, water, calcium carbonate, carboxymethyl cellulose, sodium monofluorophosphate.