baber/WOPTO huggingface dataset:
Patent GB-1526482-A (GB)
Title: Vulcanised elastomers
IPC: C08L15/00
Filed: 1976-01-29
Abstract: 1526482 Vulcanizing liquid diene polymers MICHELIN ET CIE 29 Jan 1976 [30 Jan 1975] 03578/76 Heading C3P Liquid diene prepolymers having a degree of functionality of 1À8-2À0 are vulcanized by (1) forming a mixture thereof with reinforcing filler, a sulphur vulcanization agent and a difunctional chain extender compound in amount such that the ratio of functional groups on the polymer to those on the chain extender is 1, (2) subjecting the mixture to a temperature at which chain extension occurs exclusively, e.g. 20-125 C., and (3) subjecting the product to a higher temperature, e.g. above 140 C., to effect vulcanization. In Examples, hydroxyfunctional liquid butadiene/styrene copolymers are mixed with carbon black, a conventional sulphur-curing system and methylene diphenyl diisocyanate, and heated first to 110 C. and then to 155 C. or 160 C.
Patent GB-575062-A (GB)
Title: Improvements in means for launching towed targets and/or for discharging articles from aircraft
IPC: B64D1/02
Filed: 1943-03-05
Abstract: 575,062. Launching towed targets &c. from aircraft. MILES AIRCRAFT, Ltd., (formerly PHILLIPS & POWIS AIRCRAFT, Ltd.), and HEAL, L. C. March 5, 1943, No. 3656. [Class 9 (ii)] A target 2 to be towed by an aircraft, or a parachute-borne article, is stowed in a fixed box-like compartment or, as shown, a tiltable compartment 1 located between the floor 4 and outer skin 5 of the aircraft. In the form shown in Figs. 1 and 4, the exit opening 5a is normally closed by a circularly-curved shutter fi which is connected by a linkwork 7, 9, 10, 11, 12 to the box 1 and skin 5, so that when the forward end of the box is lifted (see dotted lines in Fig. 4), the shutter is raised. automatically and the target 2, which has been previously connected to the towing cable beneath the opening 5a, can slide out of the open rear end of the box. The box has a flush lid 3 for inserting the target or other article and the shutter has a lid 8 by which access to the towing cable can be had. In the fixed form of the compartment, the target or article is moved outwards by an endless-belt carrier driven by hand or otherwise when the arcuate shutter has been raised. A magazine for spare targets &c. may be disposed adjacent the compartment.
Patent GB-235258-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P1/04
Filed: 1924-02-12
Abstract: 235,258. Jackson, A. H. Feb. 12,1924. Controllers, actuating.-A motor controller has forward and return movements imparted to it by a pilot motor constantly rotating in one direction and driving through a reversible friction clutch, which is changed over simultaneously with the actuation of a line switch in the main motor circuit. In the apparatus shown an electromagnet 5 changes over the position of a friction clutch member 14 which transmits the rotation of the pilot motor 1 through different gearing 8, 9 whereby the main controller spindle 3 is rotated in different directions. The magnet 5 is switched in and out by auxiliary contacts associated with the main switch.
Patent GB-1356264-A (GB)
Title: Coatings for foundry sand moulds
IPC: B22C3/00
Filed: 1971-02-02
Abstract: 1356264 Foundry mould coatings FOSECO INTERNATIONAL Ltd 2 Feb 1972 [2 Feb 1971] 3725/71 Heading C3N A liquid composition for coating a sand mould comprises kieselguhr or calcined rice husks and a phosphate binding agent. The composition may contain one or more other particulate refractory materials, e.g. zircon, silica flour, sand, alumina or magnesia. Preferred binding agents are sodium hexametaphosphate and sodium tripolyphosphate. The liquid medium is preferably aqueous and may contain a binding agent effective at low temperatures, e.g. clay, sodium carboxymethylcellulose, linseed oil, dextrin or a synthetic polymer. The coating should preferably be applied at a coating thickness of 0À1- 1À5 mm.
Patent GB-1372335-A (GB)
Title: Apparatus for recording and or playing back a magnetic tape contained in a cassette
IPC: G11B15/18
Filed: 1972-01-26
Abstract: 1372335 Raising and lowering heads and pressure rollers ING C OLIVETTI & C SpA 26 Jan 1972 [28 Jan 1971] 3729/72 Heading G5R In a cassette recorder, a shift plate 51 may be moved by a solenoid 59 and lever 56 in order to engage a head 62 with a cassette tape 14, and also to cause two levers 75, 100 to rotate and so bring two pressure rollers 49, 50 thereon simultaneously into the proximity of two oppositely rotating capstans 47, 48; two electromagnets 83, 108 may then be selectively energized to attract either of two armatures 82, 107 on further levers 80, 105 linked to levers 75, 100 whereby to bring a chosen pressure roller into actual engagement with its corresponding capstan. The pressure rollers 49, 50 are arranged to have outer resilient coverings 72, 73, each with a greater thickness in the central tape contacting region in order that the compressibility in this  region will be greater. The lever system supporting the rollers allows the rollers to tilt somewhat, as described with reference to Figs. 5, 6 (not shown).
Patent GB-794613-A (GB)
Title: Sectionalised ladder
Inventor: PRICE FRANK STANLEY
IPC: E06C1/10
Filed: 1956-02-07
Abstract: 794,613. Ladders. YOUNGMAN, Ltd., W. C. Feb. 7, 1957 [Feb. 7, 1956], No. 3751/56. Class 20(2) Wooden side pieces 1 of a ladder are chamfered to a wedge 2, the face of which is protected by a metal strip 4 so that when fitted together the wedges form a scarf joint.
Patent GB-1531102-A (GB)
Title: Apparatus for using exhaust steam for smoke suppression in flares
IPC: F23L7/00
Filed: 1976-01-30
Abstract: 1531102 Mixing in flow JOHN ZINK CO 30 Jan 1976 [3 Feb 1975] 03772/76 Heading B1C [Also in Division F4] Apparatus for suppressing smoke in a flare stack comprises a cylindrical housing 34 with means for inflow of vented hydrocarbons at one end, means for controlling the introduction of steam through a plurality of orifices into the gas flow 44 in the housing, and means at the opposite end of the housing for outflow of hydrocarbon/steam mixture to a flare stack. The steam 28 is introduced via a conduit 42 coaxial with the housing 34 having a plurality of radially extending pipes 48, 50 in which are the steam orifices. The pipes 48 are located in a plane perpendicular to the conduit axis and the pipes 50 are in a further such plane, each pipe 50 being angularly offset with respect to each pipe 48. The orifices may increase in size with increasing distance from the conduit 42, and they preferably direct steam perpendicular, to the gas flow. In a modification (not shown) the orifices are in one or more circumferential conduits inside the housing. The control means may also control the steam flow in dependence on the chemical composition of the hydrocarbons being vented.
Patent GB-1138813-A (GB)
Title: Process for the manufacture of anhydrides of sorbic acid
IPC: C07C51/56
Filed: 1966-01-27
Abstract: 1,138,813. Sorbic acid anhydrides. FARBWERKE HOECHST A.G. 27 Jan., 1966 [27 Jan., 1965], No. 3774/66. Heading C2C. Sorbic acid anhydrides are prepared by reacting the polyester of 3-hydroxyhexenic-(4)- acid-(1), obtained by the reaction of ketene and crotonaldehyde in the presence of fatty acid salts of bivalent metals, with a carboxylic acid chloride or a chlorocarbonic acid alkyl ester at a temperature within the range - 20 to + 120 C. The anhydrides include mixed anhydrides of sorbic acid with another carboxylic acid and mixed anhydrides of sorbic acid with carbonic acid monoalkyl esters. Carboxylic acid chlorides are listed and the reaction may be carried out in an inert solvent in the presence of a tert.-base such as pyridine, dimethyl-aniline and triethylamine.
Patent GB-1287200-A (GB)
Title: Wood-impregnation process
IPC: B27K3/50
Filed: 1970-01-27
Abstract: 1287200 Wood impregnation BADISCHE ANILIN- & SODA-FABRIK AG 27 Jan 1970 [28 Jan 1969] 3789/70 Heading A5E Wood-impregnation compositions comprise a halogen-free wood preservative and a solvent comprising a phosphoric acid ester of the general formula where the radicals R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be identical or different are alkyl, cycloalkyl, alkoxyalkyl or aryl radicals, or R<SP>1</SP> and R<SP>2</SP> together denote an alkylene radical. The wood preservative may be a fungicide such as a cresol or a nitrogen-containing compound, e.g. a salt such as the calcium and potassium salts of N-nitrosocyclohexylhydroxylamine, and/or a flame-proofing, water-proofing and/or oilproofing agent, and/or a polymerisable monomer chosen for example from acrylic esters and vinyl compounds, or a condensible monomer such as a methylol or alkoxymethyl derivative of urea or of a polyamino-S-triazine or of a phenol. The phosphate ester may be triisopropyl-, tri-n-butyl-, tri-hexyl-, tri-isobutyl-, tricyclohexyl- or tricresyl-phosphate or 2- ethoxy-2-oxo-1,3,2-dioxaphosphorinane. Preferably at least one third by weight of the composition is the phosphoric ester.
Patent GB-707059-A (GB)
Title: Improvements relating to oil circuit breakers
IPC: H01H33/75
Filed: 1951-02-16
Abstract: 707,059. Oil-blast switches. SWITCHGEAR & COWANS, Ltd., and ROWLAND, F. G. Feb. 12, 1952 [Feb. 16, 1951], No. 3791/51. Class 38(5) An oil circuit-breaker has means controlling the opening speed of the moving contact and an arc control stack with vents for the escape of fluid, the vent area being increased in the event of high pressure due to a high-current arc. The stack comprises plates 1 secured by bolts 2 with springs 8 which clamp the plates together with a predetermined pressure. The plates are arranged to form vents 7 normally between alternate pairs of plates and, at the other side of the passage for the moving contact 6, pockets between the plates with communicating openings 9 in alternate plates. The member 10 carrying the moving contact is formed with an oil scoop to direct oil into the pockets. The springs 8 on the side of the stack where the vents are formed are set to a lower pressure than those on the other side. The opening speed of the moving contact is controlled by a piston 12 moving in a cylinder 13, the piston and cylinder having vents and the size of these vents and the spring loading of the plates are correlated to produce optimum contact opening velocity up to the maximum assigned current. When interrupting high currents, the pressure generated is sufficient to displace the stack plates 1 to enlarge the vents 7 and open further vents between the plates.
Patent GB-576670-A (GB)
Title: Improvements in automatic switches as used in telephone systems
IPC: H01H63/20
Filed: 1944-03-02
Abstract: 576,670. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and COMFORT, E. E. March 2, 1944, No. 3892. [Class 40 (iv)] [Also in Group XXIV] In an electromagnetically-operated ratchetdriven switch, that face of the operating pawl 14, which engages the front guide 16, is so shaped that after the magnet armature 12 has been fully operated, that face is substantially parallel to the longer face of the ratchet tooth which the pawl is then engaging. This face of the pawl then remains in engagement with the guide member over the greater part of its retracting movement. This prevents overthrow of the ratchet during the withdrawal of the pawl. The invention may be applied to the vertical as well as the rotary stepping operation of a switch such as that described in Specification 450,019. Specification 459,872 also is referred to.
Patent GB-246324-A (GB)
Title: Improved power-transmitting device for bicycles
IPC: B62M1/00
Filed: 1925-02-12
Abstract: 246,324. Nowee, L., and Everaert, A. A. Feb. 12, 1925. Chain gearing, non-variable speed. - In a gearing-up chain drive for bicycles. two coaxial 625. Wt. 36/1147. 3/31. C.P.Leam. Ps. 1754. sprocket-wheels 7, 8, attached to one another, are located in a slotted portion 2 of the chain stay 1 and freely mounted on a transverse shaft 4 adjustably and removably carried by the portion 2, an endless chain 13 extending between the smaller wheel 7 and the crank-axle chain-wheel 12 and' a second chain 15 extending between the larger wheel 8 and the small chain-wheel 14 on the road-wheel hub. Eccentrically mounted washers 10 on the shaft 4 bear upon pins 16 on the two side members of the portion 2. Reference has been directed by the Comptroller to Specifications 29513/96, 6280/97, and 14650/99.
Patent GB-178968-A (GB)
Title: Improvements in printing presses
IPC: B41F1/26
Filed: 1921-02-03
Abstract: 178,968. Friel, C. L. Feb. 3, 1921. Printing-surfaces; platen machines.-In a job printing-press of the kind having a tiltable platen and an oscillating bed, a form-carrying chase 's intermittingly movable on the bed from one position to another so as to print from the same type a rest in each of the positions whilst the platen and bed are in engagement. Business headings may thus be printed from the same type in several positions on sheets comprising several checks. Means may' be provided to adjust the distances between these positions. A carrier for the chase may be guided by engagement with parallel side cleats on the bed, the position of the carrier being controlled through suitable linkage from a rotating cam driven from the driving-shaft of the press so that the chase moves intermittingly vertically upwards and prints a cycle of impressions from the lowermost to the uppermost position. In the form shown, the vertical bed 13, Figs. 1 and 5, is integral with legs 11 pivoted to the frame A of the press, and the tiltable platen B and the bed 13 are operated from the driving-shaft C in the frame A. The chase 18 is removably locked in a carrier 16, Figs 4 and 5, preferably by the engagement of tongues 19 on the chase 18 with lips 20 on the carrier 16, and the carrier 16 has extensions 15 sliding in parallel cleats 14 secured by screws or otherwise at the sides of the bed 13. The carrier 16 is operated by rods 21 pivoted at their lower ends to reciprocable extensions 22 of levers 23 fulcrumed at their ends 24 to a support 25, the position of the levers 23 being controlled bv the engagement with a rotating cam 26 of an antifriction roller 50 carried by a V- shaped frame attached to the levers 23. The cam 26 has three circular peripheral segments 26<a>, 26<b>, 26<c> so that the chase 18 is moved intermittingly vertically upwards through three successive positions and is then returned from the uppermost to the lowermost position. The segments 26<b>, 26<c> of the cam 26 may be radially adjustable, for instance by screws 39, 40 so that the distances between successive positions of the chase 18 can be adjusted. The cam 26 may be rotated from the driving-shaft C.
Patent GB-1498991-A (GB)
Title: Floor treating machines
IPC: A47L11/40
Filed: 1975-01-30
Abstract: 1498991 Mechanical switches; motor controllers R G DIXON & CO Ltd 22 Jan 1976 [30 Jan 1975] 4158/75 Addition to 1376008 Headings H1N and HIS [Also in Division B7] In a floor treating machine having a pair of wheels driven by respective electric motors which are independently controlled by a pedestrian operator to provide a steering effect, manually actuable control linkage through which the motors are controlled has associated therewith hydraulic dampers 38 which reduce the sensitivity of the controls to fluctuating forces applied by the operator. Each motor is controlled by a potentiometer 155, Fig. 7, and a pair of on/off and reversing microswitches 54. The potentiometer has a spindle 56 which is driven through gears 57, 58 by a camshaft 49 which operates the microswitches 54. A gear 48 fixed to the camshaft 49 meshes with a sector gear 47 connected to one of two levers 26 each of which controls one of the electric motors and has an arm 31 connected to one of the hydraulic dampers 38. Each lever 26 is connected by a link 23 to a respective end of an arm 22 on a control tube 15 which is supported by a spherical bearing 17 so that it can be pivoted in a fore and aft direction for moving the levers 26 in unison and can be rotated about its longitudinal axis for moving the levers simultaneously in opposite directions. The upper end of the control tube 15 projects through a slot 13 in a cover 12 and has a spigot 21 for mounting a steering handle. Centring springs 44 act on arm 41 on the levers 26 to urge the levers into a neutral position in which the motors are not energized. Fixed stops 72, 73 limit fore and aft movement of the control tube 15 and movement in one direction can be limited by an adjustable stop 61 which is positioned by rotating a knob 67 and engaging a dowel 68 in one of a series of apertures 69. In another embodiment there are no reversing switches, the potentiometers being arranged to provide positive or negative signals depending on their direction of rotation from a central position, and the on/off switches are activated by operating plates mounted directly on the levers 26.
Patent GB-555623-A (GB)
Title: Combined mechanically and electro-magnetically operated valve
IPC: F16K31/06
Filed: 1942-03-30
Abstract: 555,623. Valves. MUSGRAVE, J. L., LEWIS, D. G., and CRITTALL & CO., Ltd., R. March 30, 1942, No. 4202. [Class 135] In order to obtain a retarded closing action of a valve of the type described in Specification 360,978 normally held open by electromagnetic means, the valve spindle is provided with a dashpot F having adjusting means J. In a modified form, the valve-opening arms d<SP>1</SP> act on the bottom of the valve spindle.
Patent GB-772732-A (GB)
Title: Improvements in spring surfaces
IPC: A47C7/32
Filed: 1954-02-12
Abstract: 772,732. Spring surfaces. HART, M. March 17, 1955 [Feb. 12, 1954; Oct. 22, 1954], Nos. 4228/54 and 30514/54. Class 52 (4). A spring surface for supporting upholstery, composed solely of interconnected tension springs and of substantially rectangular shape has a pair of diagonally arranged springs composed of interconnected springs 19, 20, 21, 22 and edge springs 24a, 25a, 26a, 27a, 24b . . . 27b, 24c ... 27c forming similar rectangles supported at their corners by the diagonal springs. The spring surface is mounted on suspension plates 15 ... 18 having holes by which they are screwed in position on the seat frame. When applied to a settee (Fig. 4) two rectangular surfaces are provided, the edge springs 25a, 27a being replaced by short springs 64, 65 interconnected by springs 66, 67. In a modification connecting plates 61, 62 are replaced by a single plate.
Patent GB-607815-A (GB)
Title: Improvements in super-regenerative receivers
IPC: H03D11/02
Filed: 1946-02-12
Abstract: 607,815. Impedance networks. SPERRY GYROSCOPE CO., Inc. Feb. 12, 1946, No. 4350. Convention date, Feb. 12, 1945. [Class 40 (viii)] [Also in Group XL (c)] A super-regenerative receiver comprises a reflex cavity - resonator velocity - modulated valve, means for rendering it alternately oscillatory and non-oscillatory, the received signals being fed to the resonator and a separate rectifier being coupled to the resonator to provide the demodulated signals. In the embodiment described, signals from an aerial 29, Fig. 1, are fed into the loop 27 coupled to the resonator 15 of valve 10, quench frequency oscillations from source 25 being fed to a control grid 13. The signal is abstracted from the resonator by a loop 30 and fed over line 31 to a rectifier 32 having a load resistance 33 from which the demodulated signal is fed to terminals 34. The incoming signal from aerial 29 may be introduced into resonator 15 by means of the same coupling loop that is used to provide an output signal. The transmission line 31, Fig. 2, that leads from the valve resonator feeds into a resonant chamber 52 tuned, by screw 53, to the signal frequency. The aerial 29 is also coupled to the chamber through line 28. The conductive rod 56 positioned coaxially in the cylindrical housing 55 is supported by a dielectric disc 57 and discs 58, 59 couple the lines 28, 31 thereto. A crystal detector 54 is connected between the housing 55 and rod 56, the modulated signal being taken across the detector to the terminals 34. The capacitance between rod 56 and housing 55 provides a H.F. byepass across the detector.
Patent GB-695400-A (GB)
Title: Closure for bottles
IPC: B65D41/18
Filed: 1951-02-22
Abstract: 695,400. Stoppers. MARCOUX, D. D. M., and DETANNE, S. Feb. 22, 1951 [Feb. 23, 1950; Nov. 8, 1950], No. 4368/51. Class 125(iii) A resilient closure for bottles &c. comprises a top 7 formed as a frusto-conical, member to cooperate with the neck and joined by a thin flange to a skirt 4 having ribs 5 and an enlarged part 6 engaging beneath the neck bulge, the skirt being connected by a lug 3 to a retaining ring 2. The parts may be integral with one another or the lug may be pivoted to the skirt and the ring. As shown in Fig. 4, a stopper 8 is frictionally held in the frusto-conical top. Alternatively, the stopper may be held in an orifice in the top. In a further modification, Fig. 7, the top 16 is shaped as shown and is connected to the skirt 11 by a thin part 17.
Patent GB-852470-A (GB)
Title: Improved building element and method of producing it
IPC: B28B1/52
Filed: 1957-02-08
Abstract: 852,470. Building elements of bamboo shavings. ANDERSSON, H. A. Feb. 8, 1957, No. 4412/57. Class 22. Pressed building elements such as boards, battens and brick bodies consist of a mixture of bamboo shavings and an adhesive such as cement lime and magnesite. Assembled bamboo canes in a pile are fed transversely through a converging space between two belts a and bamboo shavings are cut from the flat-pressed canes by cutting edges e on a rotary disc d; the bamboo shavings are mixed with an adhesive and calcium chloride in a mould and the resulting mass is pressed to shape and dried. In alternative embodiments the disc is replaced by a rotating drum or an oscillating plate.
Patent GB-765008-A (GB)
Title: Closure adaptor for containers
IPC: B65D39/08
Filed: 1955-02-15
Abstract: 765,008. Adapter plugs for drums etc.; bunghole bushes. RIEKE METAL PRODUCTS CORPORATION. Feb. 15,1955 [Feb. 16,1954], No. 4454/55. Classes 21 and 125(3). An externally threaded adaptor plug 12 for a barrel or drum has a central internallythreaded recessed portion 15 closed by a weakened diaphragm 16. The plug is screwed into the bunghole of the barrel &c. and a tap is screwed into the recess, the base flange of the tap making sealing engagement with a shoulder 18 on the plug. Screwing home the tap severs the sealing diaphragm 16, or the diaphragm may be severed or knocked out prior to screwing in the tap. The plug may be of compressible material.
Patent GB-234420-A (GB)
Title: An improved folding box
IPC: B65D5/66
Filed: 1925-02-18
Abstract: 234,420. Filmer, R. H. Feb, 18, 1925. Folding boxes; handles; lids. - A folding box of the type having a lid e with loose flaps f , g extending within the body d approximately to the bottom of the box, has a carrying loop h secured to the front flap g of the lid and passed through a slit b<1> in the front wall b of the body to hold the lid in the closed position. The slit b<1> may be enlarged at its middle b<2>.
Patent GB-1534232-A (GB)
Title: Production of alcohols by catalytic hydrogenation of carboxylic acids lactones or anhydrides
IPC: C07C29/149
Filed: 1977-02-03
Abstract: 1534232 Hydrogenation catalysts VEBACHEMIE AG 3 Feb 1977 [10 Feb 1976] 4497/77 Heading BIE [Also in Division C2] A hydrogenation catalyst comprises palladium and rhenium in a weight ratio of 0.01:1 to 5:1, and an acid-resistant carrier, e.g. silicic acid, alumina or activated charcoal.