baber/WOPTO huggingface dataset:
Patent GB-1451662-A (GB)
Title: Packaging apapratus and method
IPC: B65B9/04
Filed: 1973-05-07
Abstract: 1451662 Packaging with inert atmosphere W R GRACE & CO 3 May 1974 [7 May 1973] 21685/73 Heading B8C In a packaging apparatus successive trays of at least one row of thermoformed trays are closed by a film 10 which is guided closely above the trays as they are fed to a closure station 9 so that inert gas introduced into the or each tray at the closure station also flushes at least the next following tray in the or each row. The closure station includes sealing heads 32, 34 which heat-seal the film 10 along the leading and side edges of the or each tray at the station 9 and simultaneously heat-seal the trailing edge of the or each preceding tray. The inert gas is introduced into the trays by one or more flat pipes having an outlet adjacent the location whereat said leading edge(s) is sealed. The trays may be vacuum or pressure formed at a station 7, in a film 2 which is heated by infra-red heaters 5. A male plunger may be used to assist the thermoforming. Lower members 31, 32 at the forming and closing stations are mounted on a common beam for simultaneous vertical movement. The mould may be interchangeable to produce trays of different sizes. The covering film may be clamped by a bar 36 operative in response to a signal from a photo-cell which detects register spots on the film, to tension the film for sealing. The closed trays are severed from one another at a station 24. The tray forming film may be a laminate of polyethylene film, polyvinyl alcohol film and polyvinyl chloride film. The covering film may be a laminate of polyethylene film, aluminium and Cellophane (Registered Trade Mark) or polyester film.
Patent GB-816325-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1955-07-27
Abstract: 816,325. Two-stroke engines. FLETCHER, A. H. CUDDON-. Oct. 29, 1956 [July 27, 1955], No. 21688/55. Class 7(2) A cylinder 4<SP>1</SP> having piston-controlled exhaust ports 7 forms a common combustion chamber 5<SP>1</SP> with, and has a bore 78 per cent to 88 per cent of that of, a cylinder 3<SP>1</SP> having piston-controlled inlet ports 6. The pistons 8, 9<SP>1</SP> are of equal weight and work on intergeared crankshafts 10, 11 of equal throw displaced relative to the respective cylinder axis. The exhaust ports may open at 83 degrees before B. D C. and close at 56 degrees after B. D. C. and the inlet ports open at 52 degrees after B. D. C. and close at 61 degres after B. D. C. thus allowing supercharging. A bore 12 1 for a fuel injector or spark plug is provided. The piston 9<SP>1</SP> may be flat-topped. In a modification, water-cooled vertical or horizontal coaxial cylinders are used, there being opposed bores 12 for two fuel injectors, two spark plugs or one injector and one plug, and a blower for inlet air or mixture. Reference is made to the use of mutually inclined cylinders, of pistons of unequal weight compensated for by crankshaft balance weights, of exhaust ports having an area of opening equal to or less than that of the inlet ports, and of an exhaust piston having a lead of up to 14 degrees on the inlet piston.
Patent GB-1534820-A (GB)
Title: Method and apparatus for transferring liquid from a storage container to a vessel
IPC: F17C9/00
Filed: 1977-05-24
Abstract: 1534820 Forcing liquids by gas-pressure AGA AB 24 May 1977 [1 June 1976] 21733/77 Heading F1R A liquid 2, e.g. liquid nitrogen, is transferred from a hermetically sealed storage container 1 to a reservoir vessel 10 by passing cold vapour from the surface 12 of the liquid 2 to a heating zone 3, e.g. a hollow member 3 having non-insulated walls, heating the vapour to a temperature above the boiling point of the liquid 2 and returning the heated vapour to the surface 12 to vaporize the surface liquid, thereby raising the pressure in the container 1. This circulation of the vapour can be effected by a fan 5 which can be switched on at the same time that a normally open valve 8 is closed the pressure build-up then forcing liquid through a pipe 9 to the vessel 10. The replenishing of liquid in the vessel 10 can be controlled by level sensitive devices, and such may also indicate the need to refill or replace the container 1. The valve 8 can be replaced by a normally closed valve (31) in the pipe 9.
Patent GB-1203527-A (GB)
Title: Air brick or block
IPC: E04B1/70
Filed: 1969-04-30
Abstract: 1,203,527. Air bricks. BESTCRETE Ltd. 30 April, 1969 [10 June, 1968], No. 21966/69. Heading E1B. An air brick having a series of outwardly downwardly extending apertures A is cast in two halves L and R which are joined along a central plane by an epoxy resin or by mortar in recesses in the mating faces.
Patent GB-1371436-A (GB)
Title: Hydraulic dynamic actuators
IPC: F15B15/24
Filed: 1973-04-18
Abstract: 1371436 Hydraulic actuators RDP HYDRAULICS Ltd 18 April 1973 [11 May 1972] 22045/72 Heading F1D A double-acting hydraulic ram with a pistonrod 12, Fig. 1, which extends through a seal 15 at one end of a cylinder 10, and ports 50, 51 in the cylinder wall, has an element 18 which is movable into and out of the cylinder to vary the effective volume thereof. The position of the element 18 is adjusted by a screw 19 driven by a motor 25 through sprockets 26, 27 and a chain. A lock-nut 30 is rotated by a pair of rams 31, Fig. 4 (not shown). To minimize the volume of liquid, the ports 50, 51, are located as close together as possible. Both the member 18 and the piston 11 may overlap the port 51 and are provided with slots 55, 56, Fig. 2, respectively which co-operate with an annular groove 57 to make this possible. The ports 50, 51 lead to a high frequency reversing valve 53. The position of the piston is sensed by a rod 40, Fig. 1, carrying a ferrite member which co-operates with a pair of induction coils in a tube 41 attached to a static plate 42. A sensor 44 indicates the position of the element 18. An electrical adding circuit combines the output of these two sensers. As described the actuator is used in a dynamic testing machine.
Patent GB-1146530-A (GB)
Title: Finely divided metals of the platinum group
IPC: C07C5/03
Filed: 1966-05-18
Abstract: 1,146,530. Phenol. MONSANTO CO. 18 May, 1966 [18 May, 1965], No. 22105/66. Heading C2C. [Also in Divisions C5 and C7] A platinum group metal containing catalyst produced by reduction from solution (see Division C7) is used in the dehydrogenation of cyclohexanol to give phenol.
Patent GB-744273-A (GB)
Title: Improvements in or relating to the production of modified alkyd resins
IPC: C08G63/48
Filed: 1953-08-11
Abstract: A modified alkyd resin is made by reacting (a) a low molecular weight polymer or copolymer of an ester of acrylic acid and/or one of its alpha-substitution products with a monohydric alcohol; (b) a polycarboxylic acid or anhydride; (c) a polyhydric alcohol, and (d) a mono- or di-glyceride of an oil fatty acid.  All four reactants may be heated together or two or three of them heated together, the remaining one or two added, and reaction continued. Natural or artificial resins may be added during the reaction. Specified are, for (a)-the methyl, ethyl or butyl esters of acrylic or methacrylic acid; for (b)-phthalic, terephthalic, maleic and adipic acids or anhydrides; for (c)-glycerol, pentaerythrite, trimethylol propane, hexanetriol, butanetriol, sorbitol, hexitol and glycol; for (d)-the glycerides of linseed, castor, wood-spirit, soya-bean, sunflower seed, coconut, perilla, oiticica and tall oils.  The resins are soluble in xylene, turpentine substitute, esters, mono- and polyhydric alcohols, ketones and petrol, and may be emulsified.  In examples: (1) a copolymer of the butyl- and ethyl-esters of methacrylic acid, glycerol and phthalic acid were heated together, linseed monoglyceride added, heating continued, and the product run into a solvent mixture of xylene and turpentine substitute; (2) an alkyd from butanetriol and phthalic anhydride was heated with linseed mono- and di-glyceride and polymethacrylic acid methyl ester; (3) castor oil, glycerol and acrylic acid ethyl ester were heated together in presence of calcium oxide, trimethylol propane and phthalic anhydride added, and heating continued; (4) polymethacrylic acid butyl ester, glycerol, phthalic anhydride and maleic anhydride were heated together, congo copal and a mixture of linseed oil and castor oil monoglyceride added, and heating continued.  Specification 731,447, is referred to.
Patent GB-155024-A (GB)
Title: Improvements in or relating to air-heaters for use in domestic fireplaces, stoves and the like
IPC: F24B1/188
Filed: 1919-09-09
Abstract: 155,024. Drigenko, C. T. Sept. 8, 1919. Open fire-places; air, moistening.-An open fire-place is provided with an air-heater in three sections, namely, an intake section C resting on the hearth A<3>, an uptake section D, and a delivery section E with a valve E<5> controlling the passage of air to the room. The section D may be made wholly or partly of fire-clay or like material; as shown it consists of a front wall D<1>, which may be ribbed back and front, and a rear wall D<2> of sheet iron fitted to the brickwork setting. The part C may be of cast iron, and may support the grate A<1>, which may, however, be secured to the sides of the fireplace. The part E may be of sheet-iron, and surrounds the throat of the chimney. The part C may be provided with an air moistener in the form of a shallow tray F with an inclined front F<1>. Specifications 4771/93 and 14301/98 are referred to
Patent GB-863979-A (GB)
Title: Improvements relating to machines for the compressive-shrinking of textile fabrics
Inventor: MOORHOUSE WILLIAM JOSEPH
IPC: D06C21/00
Filed: 1956-07-18
Abstract: 863,979. Shrinking fabrics. BRADFORD DYERS ASSOCIATION Ltd. July 18, 1957. [July 18,1956],No. 22194/56. Class 42 (1). A machine for the compressive shrinking of textile fabrics and wherein an endless belt 6, Fig. 1, with a contractible surface runs round two rollers 3, 4 and is engaged by a middle roller 5 or plate has members 20, 22, Fig. 3, on which the shafts of the rollers can slide clear of the side-frames 1, 2 to enable the belt to be replaced, one or both of the members 20, 22 at one side of the machine being detachable. The members 22 are connected by bolts 23 to members 15 which are adjusted about a pivot 16 by screws 18 until they are horizontal while the members 20 are bolted to the machine in place of plates 11. In operation of the machine the latter co-operate with screws 19 for displacing the roller 4 to the right and provide a pivotal support for a pair of levers 9 which effect similar adjustment of the roller 3. After the rollers have been withdrawn from between the sideframes, they are fitted with extensions 24, 25, Fig. 5, which are supported on a trestle 26 so that the belt 6 may be displaced to the position shown after removal of the member 20. To enable the belt to be replaced the rollers 3, 4 are again supported on the members 20, 22 and the trestle 26 removed to a position clear of the extensions 24, 25. The machine is restored to operation with the new belt by reversing the procedure described. If the roller 4 is mounted for adjustment in horizontal guides the members 22 are fixed to the machine in the same way as the members 20.
Patent GB-1019624-A (GB)
Title: Improvements relating to electrical protection systems
Inventor: CARTER RONALD PHILIP
IPC: H03K5/08
Filed: 1961-06-20
Abstract: 1,019,624. Protective systems. ENGLISH ELECTRIC CO. Ltd. June 15, 1962 [June 20, 1961] No. 22234/61. Heading H2K. A protective system includes means for generating pulses whose length are dependent on the phase displacement between amplitudemodulated carrier waves from both ends of a protected section and means to perform a protective function when the length of a pulse exceeds a predetermined value. Fig. 1 indicates the equipment at one end of a protected section and comprises a phase sequence network which supplies a signal dependent on a combination of the positive and negative phase sequence components of the currents in the protected line section R, Y, B, to a squarer through a D.C. filter. The network also supplies signals dependent on the positive and negative phase sequence components to a starter which consists of a fault detector effective to provide a D.C. output signal which is the larger of two signals, one dependent on the negative phase sequence signal and the other on the increase in the positive phase sequence signal. The D.C. output is applied to high and low set threshold units, the latter controlling a co-ordinator which, when rendered operative, puts the squarer in communication with an amplifier to modulate the L.F. carrier wave produced by an oscillator for transmission to the remote end. A receiver demodulates the combined local and remote carrier waves and supplies the demodulated signal to a discriminator which is rendered operative only when the D.C. output signal from the starter exceeds the high set threshold value. The output from the receiver is in the form of pulses having a length dependent on the phase displacement and the discriminator includes a circuit having a time constant such that it is only when the length of a pulse exceeds a value indicative of a fault condition and not a normal phase shift, that a trip relay is operated. A connection between the co-ordinator and the discriminator enables a stabilizing signal to be applied to the discriminator to render it inoperative after a time interval sufficient for operation of the trip relay, so as to render the equipment immune to transients resulting from the opening of circuit-breakers in adjacent sections. The Specification describes in some detail the circuits of the various portions of the equipment, Figs. 4 to 11 (not shown). These circuits are transistorized and include test facilities.
Patent GB-664879-A (GB)
Title: Improvements in or relating to couplings for pipe lines, conduits and the like
IPC: F16L27/107
Filed: 1949-08-26
Abstract: 664,879. Pipe joints. DEHN, F. B. (Edelmann & Co., E.). Aug. 26, 1949, No. 22254/49. Class 99 (i) In a flexible pipe coupling comprising a body portion 17 of resilient material such as " Neoprene " which has a passage therethrough and a pipe attachment member 18 secured at each of its ends, each attachment has a tubular shank which extends into the said passage and each shank has axially spaced flanges 25, 27, 28 which are embedded into the body portion 17. Each attachment 18 also has a threaded end 19, a nut-shaped portion 22 and a reduced part 23. As shown, the shank is tapered and the flange 25 is larger than the flanges 27, 28, the flange 28 being bevelled. One of the attachments 18 may have a pipe-receiving socket 21. In modifications, Figs. 4 and 6 (not shown), the flanges are dispensed with and the shanks are of uniform cross-section and interconnected if desired, by springs which are embedded in the rubber, or outwardly flared respectively.
Patent GB-613497-A (GB)
Title: Improvements in polymeric materials and in processes for their production
IPC: D06M13/184
Filed: 1945-05-10
Abstract: Polytriazoles produced according to Specifications 612,609 and 613,020 are treated with acylating agents or with aldehydes or ketones.  Acylating agents include mono- and poly-carboxylic acids and their derivatives such as anhydrides and halides, e.g. chlorides, also iso-and isothio-cyanic acid, and mono-, di- and poly-iso- and -isothio-cyanates.  Acids specified are formic, acetic, levulinic and sebacic.  Aldehydes specified are formaldehyde, acetaldehyde, benzaldehyde and furfural.  In examples: polyaminotriazoles prepared by heating sebacic dihydrazide with hydrazine hydrate plasticized by o-phenylphenol are (1) immersed in aqueous formaldehyde; (2) as example (1), but the plasticizer was extracted by acetone before or after the formaldehyde treatment; (3) steeped in cold acetaldehyde and the resulting solution precipitated in water to give a product soluble in methanol, m-cresol, formic acid and acetic acid; (4) freed from plasticizer by acetone extraction, then refluxed with ethylbenzene and acetic anhydride; (5), (6) dissolved in aqueous formic acid and boiled, and then precipitated in water to give a product soluble in methanol and in methanol-chloroform mixtures; (7) dissolved in glacial acetic acid, sebacic acid added, the acetic acid evaporated off in vacuo, and the residue heated; (8) boiled with hexamethylene diisocyanate in xylene.
Patent GB-922669-A (GB)
Title: Improvements in or relating to polypropylene fibers
IPC: D06P5/20
Filed: 1961-06-21
Abstract: Colourless chlorosulphonated polypropylene fibres capable of being dyed and possessing good tensile strength may be prepared by subjecting the fibres in the solid state to irradiation capable of inducing active centres in polypropylene and to the action of sulphur dioxide and chlorine gases, before, during or after the irradiation of the fibres, to chlorsulphonate the irradiated fibres with the gases.  The fibres are preferably initially saturated with the gases for several minutes, then irradiated, and thereafter held in an atmosphere of the gases to complete the radiation-induced reaction. To increase the heat-stability of the chlorosulphonated fibres they can be reacted with ammonia or an amine at about 15 DEG C. to about 150 DEG C.  The fibre material preferably has a molecular weight of about 100,000 to about 500,000, particularly about 350,000 to about 450,000.  The radiation utilized may be particulate radiation, such as alpha-particles and beta-radiation (that is, electrons), obtained from radio-active nuclei or high-energy electrons from machine sources; electro-magnetic radiation, such as gamma rays, X-rays, ultra-violet light or visible light.  A preferred source of radiation is a beam of high-energy electrons (e.g. from about 0,5 to 3 million electron-volt electrons).  For ionizing radiation the total dose may be 10,000 to 50 million rads., preferably 75,000 to 1,200,000 rads. Sufficient of the gases should be present to introduce into the fibres about 0,1 to 5,0%, preferably 1,5 to 2,5%, sulphur and 0,3 to 20%, preferably 3,5 to 10% chlorine.  Preferably 1 to 50 parts by weight of each gas per part of fibres per hour are used.  The mol. ratio of sulphur dioxide to chlorine may be 1-10 to 3-1.  Ionizing radiation in the form of high-energy electrons is preferred, since the fibres need only be subjected to such radiation for 0,06 to 0,6 second.  X-rays usually require 10 to 15 minutes exposure, and visible light 20 to 60 minutes. The temperatures used may be 20 DEG to 100 DEG C., and the pressure atmospheric.  It is preferred to saturate the fibres with the gases for about 4 to 8 minutes or longer prior to the irradiation step.  A list is given of amines which may be used to heat-stabilize the chlorsulphonated fibres.  In examples diethanolamine, aniline, ethylene diamine and tetraethylene pentamine are used.  An amine may be used either in solution or not.  One and preferably two mols. or more of ammonia or an amine are preferably used per mol. of chlorosulphonyl groups introduced into the fibres. The fibres thus treated may be dyed with a variety of basic dyestuffs.
Patent GB-229214-A (GB)
IPC: C02F3/12
Filed: 1924-09-23
Abstract: 229,214. Imhoff, K. July 15, 1924, [Convention date]. .4erating; bacteriological processes; plant.- Excess sludge formed during the treatment of sewage by the activation process is delivered into the raw sewage as it flows into a preliminary settling tank. The plant comprises a preliminary settling and digestion tank a, aeration tank b and settling tank c. The requisite portion of the sludge separating in the tank c is delivered by air pressure through a pipe d to the inlet channel e of the tank b, and any excess is delivered through a pipe h to the inlet channel i of the tank a. The mixture of activated and raw sludge separating in the tank a digests readily in the lower part of the tank, the product being passed to drying beds k.
Patent GB-1417358-A (GB)
Title: Process for preserving fruits or vegetables
IPC: A23B7/154
Filed: 1974-05-20
Abstract: 1417358 Preserving fruit and vegetables NYIREGYHAZI KONZERVGYAR 20 May 1974 22461/74 Heading A2D A process for preserving fruit and vegetable material comprises placing the material in a container, filling the container with a heated pure juice prepared from the same material as that to be preserved, sealing and heat-treating the container. The juice may be expressed from the material, and purified and homogenised by clarification and filtering.
Patent GB-421393-A (GB)
Title: Improvements in adjustable spanners and the like
IPC: B25B13/18
Filed: 1934-08-01
Abstract: 421,393. Spanners &c. AGUDIO, P., 94, Corso Re Umberto, Turin, Italy. Aug. 1, 1934, No. 22487. [Class 61 (iii)] The movable jaw 4 and its guide 5 slide on the shank 2 of the fixed jaw of a spanner, &c. and a nut 7 carried by the guide 5 slides in a recess 6 in the shank, the nut rotating a screwed rod 8 carried at its upper end by a spring 10 and ball 11 and at its lower end by a conical bearing 9 which provides sufficient friction to check rotation of the rod, and, consequently, movement of the nut 7 and jaw 4 unless a cylindrical portion 12 is engaged, through a ball 13, by a cam lever 15 to raise the rod 8 and free the cone 9. In this position, the jaw 4 is moved to engage the article or nut to be operated on and is locked thereagainst when the lever 15 is released and the spring 10 thrusts the core 9 on to its seating. The seating of the core 9 may be a member separate from the shank to allow wear to be taken up. As shown in Fig. 4, the spring 10 is omitted and the core is supported by a slide 19 recessed to receive a spring 20 engaging the cone 9 through a ball 13. Movement of a cam lever 23 lifts the slide 19, rod 8, nut 7 and jaw 4, until the workpiece arrests the jaw whereupon the nut 7 rotates the rod 8 until a stop 18 terminates its upward movement and forces the cone 9 on to its seating on the slide 19 locking the rod against rotation and the jaw on the workpiece. A toggle arrangement may replace the lever 23.
Patent GB-330441-A (GB)
Title: Device for protecting the face adaptable for use as a wind screen
IPC: A61F9/02
Filed: 1929-07-23
Abstract: 330,441. Charles, A. July 23, 1929. Eye-shields. - Face protectors, comprising a bow fronted transparent face guard adjustably connected to a system of extensible head and chin straps, consist of a bowed or arched sheet of mica or the like non-inflammable material 1 provided on its vertical edges with -T-shaped metal fittings 2 each having a rearwardly projecting branch in which are formed two horizontal slots 5. 6. The two head straps 9 are clamped to the fitting 2 by clamping screw 7 and the chin strap 8 is similarly secured in the slot 5. Elongated slots 10 may also be provided in the head straps as shown.
Patent GB-733851-A (GB)
Title: Improvements in or relating to flow control apparatus and method
IPC: D21F1/02
Filed: 1950-09-15
Abstract: 733,851. Regulating fluid flow. PAPER PATENTS CO. Sept. 15, 1950 [Oct. 1, 1949], No. 22724/50. Class 135. [Also in Group VIII] A flow-spreader for paper pulp &c. comprises a series of thin vanes 37 spaced across a diverging portion of a conduit. The vanes may be equi-angularly spaced, and the central vane 37a may be straight, while the others may each have a curved up-stream portion. The vanes may have screw-adjustment about pivots 43 and may be removed for cleaning &c. without affecting the adjustment. In modifications there are branched pipes; two or more sets of vanes; and an off-centre straight vane for non-symmetrical flow distribution.