baber/WOPTO huggingface dataset:
Patent GB-1403040-A (GB)
Title: Bi-directionally movable platform control for sheet feeding apparatus
IPC: B65H1/18
Filed: 1972-12-28
Abstract: 1403040 Feeding sheets XEROX CORP 28 Dec 1972 [30 Dec 1971] 59876/72 Heading B8R Apparatus for regulating the position of a platform 101 upon which sheets 102 are stacked is provided with direction determining means to produce first and second signals for lowering and raising the stack respectively. The lowest position of the platform 101 is sensed by a transducer 121. When switch 125 is closed, platform 101 is lowered to its lowest position until transducer 121 is operated. As soon as switch 125 is opened, the control circuit is such that platform 101 is raised until the topmost sheet is detected in the feed position by a transducer 123. However, this raising only occurs if the door of the cabinet housing the platform 101 is closed (detected by transducer 122), the machine to which the sheets are fed is ready to operate, and a switch 124 is closed by the operator. Opening the door 107 will automatically stop lowering or raising of the platform 101 if it is in progress. The invention is not limited to vertical movement of the platform 101 and embraces all movement, e.g. lateral movement. (For Figure see next page.)
Patent GB-1333264-A (GB)
Title: Separation of structurally similar cyclic hydrocarbons with molecular sieves
IPC: B01J20/18
Filed: 1970-12-17
Abstract: 1333264 Separating cyclic hydrocarbons SUN OIL CO 17 Dec 1970 [30 Jan 1970] 59954/70 Heading C5E Two structurally similar cyclic hydrocarbons are separated one from the other by preferential adsorption from a fluid mixture on a solid adsorbent comprising a partially dehydrated Y and/or L type aluminosilicate zeolite having a critical pore diameter greater than 6Š, the ratio of Al-Si of the framework being 0À65 to 0À2, the zeolite having been pre-treated either by being partially dehydrated at 25-400‹ C. or by conditioning of methanol-wet zeolites in moist air at 125‹ C. The zeolites may comprise cations of the alkali metals, alkaline earth metals and/or rare earth metals. Examples describe the liquid phase separation of the following pairs of cyclic hydrocarbons: m-xylene and p-xylene; 2,6- and 2,7-dimethylnaphthalenes; octahydrophenanthrene and octahydroanthracene; anthracene and phenanthrene; fluorene and 5,6-benziden; acenaphthene and 2,3-dimethylnaphthalene; benzene and toluene. Example XIV describes the vapour phase separation of 2,6-DMN from 2,7-DMN on a Na-Y sieve.
Patent GB-1308489-A (GB)
Title: Processes for the production of an alkali-resistant finely disperse aqueous plastics dispersion
IPC: C08F220/12
Filed: 1970-12-17
Abstract: 1308489 Vinyl chloride copolymers LONZA Ltd 17 Dec 1970 [18 Dec 1969] 60045/70 Heading C3P A vinyl chloride copolymer dispersion for use in mortar mixes is obtained by forming a copolymer having a glass temperature of 15-25 C. by polymerizing a monomer mixture of 30 to 80% by weight of vinyl chloride and 20 to 70% by weight of polymerizable, internally plasticizing monomers in the presence of an aqueous phase which contains, referred to the total weight of the monomers, (a) 3 to 6% by weight of an emulsifier mixture which consists of 60 to 90% by weight of non-ionic emulsifiers and 10 to 40% by weight of anionic emulsifiers, (b) a polymerization catalyst, (c) 2 to 4% by weight of a water-soluble solvent for the polymer, (d) 0À3 to 0À5% by weight of a copolymerizable, water-soluble monomer, and (e) a buffer agent, and further adding to the dispersion so obtained 0À5 to 5% by weight, referred to the total dispersion, of an anionic emulsifier, and 0À1 to 0À5% of an antifoam agent. In examples the comonomers used are vinyl propionate/butyl acrylate, vinyl propionate/ ethylene, vinyl acetate/butyl acrylate, and vinyl acetate/dibutyl maleate together with a small amount of acrylic acid in each case. Hexylene glycol or glycol monobutyl ether is used as solvent together with a sulphate or sulphonate as anionic dispersant on alkylene oxide condensate as non-ionic dispersant and a silicone as antifoam agent. Monomers are added gradually with part of the non-ionic dispersant.
Patent GB-1215180-A (GB)
Title: Hydrocracking start up procedure
IPC: C10G49/24
Filed: 1968-12-18
Abstract: 1,215,180. Hydrocracking. CITIES SERVICE RESEARCH & DEVELOPMENT CO. 18 Dec., 1968 [26 Dec., 1967], No. 60101/68. Heading C5E. In the starting up of a process for hydrocracking heavy hydrocarbon feed oil at least 20 volume per cent of which boils above 975‹ F. and which contains at least 5 volume per cent asphaltenes, in the presence of hydrogen-containing gas and new hydrogenation catalyst, to convert at least 50 volume per cent of the feed material boiling above 975‹ F. to material boiling below 975‹ F., an improved procedure comprises: (a) initially feeding such heavy hydrocarbon oil to a hydrocracking reaction zone containing new hydrogenation catalyst while maintaining the reaction zone under operating conditions such that less than 40 volume per cent of such heavy hydrocarbon oil boiling above 975‹ F. is converted to material boiling below 975‹ F.; (b) continuing operation of the hydrocracking reaction zone under operating conditions such that no more than 40 volume per cent of such heavy hydrocarbon oil boiling above 975‹ F. is converted to material boiling below 975‹ F. until at least three barrels of such heavy hydrocarbon oil boiling above 975‹ F. per pound of new catalyst in the reaction zone have been processed in the reaction zone; and then (c) varying operating conditions in the reaction zone to increase conversion of such heavy hydrocarbon oil boiling above 975‹ F. to material boiling below 975‹ F. to normal desired operating conversions of at least 50 volume per cent. " New " catalyst is defined as that having been used to treat no more than about one barrel of oil per pound. In an example a heavy hydrocarbon feedstock is hydrocracked in an " ebullated bed of cobalt molybdate on alumina.
Patent GB-1332425-A (GB)
Title: Process for preparing hydrogen bromide
IPC: C01B7/09
Filed: 1971-12-29
Abstract: 1332425 Hydrogen bromide KAO SOAP CO Ltd 29 Dec 1971 [30 Dec 1970] 60325/71 Heading C1A Hydrogen bromide is prepared by reacting an alkali metal or alkaline earth metal bromide and concentrated sulphuric acid in a constant boiling mixture of hydrogen bromide of water, condensing the vapours and collecting the hydrogen bromide in gaseous form. Specified bromides are those of sodium, potassium, calcium and magnesium, and the sulphuric acid is of concentration between 90 and 98% by weight. Any bromine present in the product may be removed by passage through an absorber containing, e.g. tetralin or toluene.
Patent GB-1357114-A (GB)
Title: Aromatic polymers
IPC: C08G75/14
Filed: 1970-12-22
Abstract: 1357114 Aromatic polysulphones IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Nov 1971 [22 Dec 1970] 60907/70 Headings C3R and C3C Aromatic polysulphones are mixed with elemental sulphur, aliphatic or aromatic dithiols or aliphatic or aromatic polydisulphides, the mixtures containing 95% to 99À99% by weight of polysulphone and 5% to 0À01% by weight of sulphur. The polysulphones have repeating units -Ar-SO 2 -, where Ar is a divalent aromatic residue and at least some of the -Argroups have an aromatic ether group in the polymer chain ortho or para to at least one -SO 2 - group. Polymers of increased molecular weight are obtained by heating the mixture to between 300‹ C. and 450‹ C. In examples polysulphones containing units of formula are mixed with elemental sulphur, biphenyl-4,4<SP>1</SP>- dithiol, bis-(4-mercaptophenyl)sulphone, bis-(4- mercaptophenyl)ether, a polydisulphide with units of formula -S-C 6 H 4 -O-C 6 H 4 -S- and with a polyethylene disulphide; the mixtures are heated, some under pressure to obtain films and some of those containing elemental sulphur to obtain foams; also, lacquers are prepared from the polysulphone mixed with 4,4<SP>1</SP>- biphenyl dithiol, bis-(4-mercaptophenyl)sulphone and bis-(4-mercaptophenyl)ether and dissolved in dimethyl formamide, coated on copper wire and aluminium foil, dried and heated. Uses.-Films, foams, mouldings, coatings and insulators.
Patent GB-1286478-A (GB)
Title: Improvements relating to composite boards
Inventor: BOLSTER LYLE ROLLIN
IPC: E04C2/24
Filed: 1969-12-16
Abstract: 1286478 Foam coated perlite board GREFCO Inc 16 Dec 1969 61270/69 Heading B2E [Also in Division B5] A composite board having good thermal insulation properties has a U value of not more than 0.2 and comprises an organic plastic foam layer having a K factor not greater than 0.4 covered on at least one of its surfaces by a perlite board comprising expanded perlite intermixed with fibrous material, e.g. newsprint fibre, and held together by a binder, and having a minimum thickness of 0.6 inch, a K factor not greater than 0.45 a minimum perlite content of at least 30% by weight and a combustible organic phase not greater than 35% by weight. The other surface of the foam layer may be covered by a layer of perlite board, roofing felt or paper. The perlite board layer is preferably 3/4-1 inch thick and the foam layer ¢-2 inches thick. The foam layer may be produced in situ on the perlite board. The foam may be produced from a polyurethane, polystyrene, polyvinyl chloride or epoxy resin, suitable blowing agents used to produce the foam being pentanes, hexanes, halocarbons, preferably fluorocarbons; azodiocarbonamide and dinitrosopentamethylene tetramines. The foam composition may also contain tertiary amine catalysts, e.g. triethylamine, surfactant copolymers based on dimethyl polysiloxane and polyoxysiloxanes, phosphorus and chlorine substituted polyols to impart flame resistance, dyes, fibres and fillers, e.g. wood flour, clay, talc, antimony oxide and ammonium phosphate.
Patent GB-1213840-A (GB)
Title: Process for obtaining 1,1,1,2-tetrachloroethane
Inventor: CORREIA YVES
IPC: C07C19/055
Filed: 1968-12-30
Abstract: 1,213,840. Chlorination process. PRODUITS CHIMIQUES PECHINEY-SAINTGOBAIN. 30 Dec., 1968 [29 Dec., 1967], No. 61703/68. Heading C2C. 1,1,1,2-Tetrachloroethane is produced by reacting 1,1-dichloroethylene in the liquid phase and containing not more than 0À001% by weight of conventional stabilizers, with molecular chlorine at 20 to 90‹ C. in the absence of both light and catalysts, the molar ratio of chlorine to 1,1-dichloroethylenes being not more than 0À95 : 1. Specified by-products include pentachloroethane.
Patent GB-658263-A (GB)
Abstract: 658,263. Regulating delivery of pumps. DOWTY EQUIPMENT, Ltd., and BOWERS, E. H. Feb. 19, 1948, No. 4946. [Class 102(i)] [Also in Group XXIX] A pump 12 operates in conjunction with unloading mechanism such as a cut-out 16 to feed liquid into a delivery line 14 whenever the pressure in the line falls below a predetermined value. When a jack 22 is being operated at a rate requiring a flow of liquid less than the output rate of the pump the unloading mechanism may be frequently called into operation. To avoid this a unit 11 is provided including a byepass valve 29, Fig. 2, which opens at a pressure below that at which the unloading mechanism operates and a flow responsive valve 31 which as shown is in a passageway connected to the return line 23 of the jack. Whenever the jack is being operated flow in the return line displaces the valve 31 to the right so that it uncovers a port 35 and enables liquid to be byepassed to the return line whenever the pressure is sufficient to open the valve 29. In a modification the passage of the unit 11 containing the flow responsive valve is in the delivery line. A one-way or two-way restrictor 24 can be provided or an orifice 33 in the valve 31 can form the sole restriction. In the modification there is a restriction in each line to the jack. In another modification the jack is returned under the influence of its loading. It is stated that other forms of unloading mechanism may be used. Thus the unloading mechanism may act to reduce the stroke of the pump or to meter the flow to the inlet of the pump. The pump will commence feeding liquid into the delivery line when the pressure in this line has fallen to a predetermined cutin pressure and when the pressure has risen to a predetermined cut-out pressure the output of the pump will be byepassed or will be reduced to zero either by reducing the stroke of the pump to zero or by shutting off the inlet line of the pump. The Provisional Specification states also that the relief valve and its associated piston valve may be housed in a single casing with the cutout mechanism. Restrictions may afford differing rates of travel in opposite directions.
Patent GB-699955-A (GB)
Abstract: 699,955. Ticket-issuing machines. T.I.M. (TICKET-ISSUE MACHINES), Ltd. Feb 21, 1951 [March 21,1950], No. 7056/50. Clasa 106(iii). A ticket printing and issuing machine wherein tickets are printed and ejected by the combined operation of a rotary printing, element and pressure devices is characterized in that the printing element includes three monetary value printing dies, setting devices for said dies, said setting devices when operated also setting the means for transmitting movements to recording mechanism in accordance with the monetary value set up. The present invention relates to an improvement of the ticket printing and issuing machine described in Specification 477,685..- The rotary printing element carries three coaxial " value " printing wheels 5, 8 and 10, Fig. 4. The wheel 8 is set in known manner by an, external lever arm 9, Fig. 3, to print multiple unit values, e.g., " dollars " or " shillings," The wheel 5 is set, in known manner, by operation of a dial 3, to print unit values e.g. " tens of cents " or " pennies." The wheel 10 is settable by operation of a lever arm 12 to print either zero units or half units, e.g. " 0 " or " 5 " cents or " 0 " or " ¢d." The movement of the lever 12 is transmitted, to the printing wheel 10 through a pinion 13, Fig. 5, a rack bar 14, and a rack bar 19, Figs., 3 and 4. Three separate counters are associated with the three . " values and are operated respectively by actuating mechanisms 6, 28 and 17, Fig. 1 (not shown), in known manner. A further " total" counter is operated at each operation of the machine.
Patent GB-730488-A (GB)
Abstract: 730,488. Fluid-pressure servomotors; valves. BALLARD & CO., Ltd., F. J. Nov. 2, 1953 [Nov. 5, 1952], No. 27859/52. Class 135. In an oven to which the supply of fuel, e.g. gas, is controlled by a diaphragm - actuated valve 16 having a restricted passage 22 between the two sides of the diaphragm and a weep pipe 24 controlled by a thermostat such that upon rise of temperature the escape of fuel from the weep pipe is reduced to increase the pressure above the diaphragm and thereby reduce the fuel flow, a valve 28 is interposed in the weep pipe and is arranged to be held open by an abutment 35 when the oven door is closed, but is spring-urged to the closed or almost closed position shown when the door is opened so as to cause the fuel valve 16 to be closed. A by-pass 26 passes sufficient fuel to maintain the burners alight when the valve 16 is closed. In a modification the valve 28 is arranged in the fuel supply pipe 13 or 18. Also, it may be connected to the door by quadrant gearing, link means, or electrical means.
Patent GB-750265-A (GB)
Abstract: 750,265. Exhaust ports. TEXACO DEVELOPMENT CORPORATION. Jan. 25, 1954 [Jan. 26, 1953], No. 2146/54. Classes 7(2) and 7(3) Exhaust ports In an. exhaust port arrangement for an engine operating with combustion, gases swirling about the axis of each cylinder and having means for uniflow scavenging including a number of piston-controlled exhaust ports, 31-36, Fig. 3, in each cylinder and each port having a flow axis 43 disposed at an acute angle to that cylinder radius 44, which intersects each port at the centre of its inner end, each port is defined by parallel walls and the acute angle has such a value that the sum of the products of the flow coefficient of each port and its crosssectional area is.a maximum ,the coefficient being defined as Where Co the flow coefficient of a standard orifice having an area equal to the cross-sectional area of the port, Po = pressure drop across the orifice, and Pp = the pressure drop across the port; the flow axis of the port may be disposed in a plane perpendicular to the cylinder axis. The exhaust ports are rectangular in cross-section and the flow axes 43 are disposed at an angle 50 which is between 25- 35 degrees, to the radius 44 passing through the axis 43 on the cylinder circumference that is tangential to a circle inscribed within the cylinder; the ports open into an annular passage 51 which is connected to the exhaust manifold. Arrangement and operation The intake ports 8, 9, Fig 1 are controlled by valves 6, 7 each embodying a semi-circular shroud 11 that is arranged to lie on a cylinder radius, the two shrouds facing in opposite directions so as to impart a swirl to the incoming air of about 4-12 times the engine speed. In small engines only one intake port is provided. The sparking plug 22 is mounted about 30‹-60‹ downstream of the fuel nozzle 20 to ignite the first increment of fuel air mixture as soon as the combustible vapour resulting therefrom has swirled to the vicinity of the plug 22; a flame front is thus formed which ignites the remaining increments of mixture during that cycle, the front travelling counter to the direction of air swirl but remaining stationary relative to the cylinder. Fuel injection commences from 70-20 degrees before T.D.C. Specification 596,846 is referred to.
Patent GB-781110-A (GB)
Abstract: 781.110. Air supply for combustion. OVERSTALL. F. P. March 14, 1956 [March 22. 1955]. No. 8220/55 Class 126 Air is supplied over the edge of the hearth a to the front of a fire through a ventilator box 10 with an outlet 11 directed over the hearth. The base of the ventilator box has a number of holes 14, and the box 10 slides in guides 13 over an apertured base plate 12 secured to the floor boards surrounding the hearth. Air is drawn from beneath the floor through holes d drilled in the floor to correspond with the holes in the plate 12. The amount of air supplied is controlled by adjusting the position of the ventilator box 10 and hence of the holes 14 in relation to the holes in the plate 12. In a modification, Fig. 2, not shown, a large hole is cut in the floor boards to clear the edge of the hearth foundation and extend under the base plate, and extension plate covering the lateral extension of the hole. In another embodiment, Fig 4, the box 10 slides on a combined base plate and air duct 16, which has an extension 18 which conducts air from hole h drilled in the floor boards beyond the edge of the hearth foundation. Two ventilators may be used, one at either end of the hearth, or a single central ventilator may be placed in front of the fire.
Patent GB-2007665-A (GB)
Title: Analgesics
IPC: C07C49/417
Filed: 1978-11-07
Abstract: Compounds of the formula   <IMAGE>   <IMAGE>  wherein R1 is hydrogen, benzyl, benzoyl, alkanoyl of 1 to 5 carbon atoms or -CO-(CH2)p-NR'R'' wherein p is 0 or an integer from 1 to 4; each of R' and R'' when taken individually is hydrogen or alkyl of 1 to 4 carbon atoms; R' and R'' when taken together with the nitrogen to which they are attached form a 5- or 6-membered heterocyclic ring selected from piperidino, pyrollo, pyrrolidino, morpholino and N-alkylpiperazino having from 1 to 4 carbon atoms in the alkyl group; R2 is selected from hydrogen, alkanoyl of 1 to 6 carbon atoms and benzoyl; R3 is selected from hydrogen, methyl and ethyl; R4 is selected from hydrogen, alkyl of 1 to 6 carbon atoms and benzyl; Z is selected from: (a) alkylene having from one to nine carbon atoms; (b) -(alk1)m-X-(alk2)n- wherein each of (alk1) and (alk2) is alkylene having from 1 to 9 carbon atoms, with the proviso that the summation of carbon atoms in (alk1) plus (alk2) is not greater than 9; m and n are each 0 or 1; X is selected from O, S, SO, and SO2; and W is selected from hydrogen, methyl, pyridyl, piperidyl, phenyl, monochlorophenyl, monofluorophenyl and   <IMAGE>   wherein W1 is selected from hydrogen, phenyl, monochlorophenyl and monofluorophenyl; a is an integer from 1 to 5 and b is 0 or an integer from 1 to 4, with the proviso that the sum of a and b is not greater than 5. Compounds I and II are useful as analgesics. Compound III is useful as an intermediate for the preparation of Compounds I and II. Intermediates for the preparation of I, II and III are disclosed. A process for the use of compounds I and II to produce analgesia is also described.
Patent GB-2034845-A (GB)
Title: Fastening Anchor
IPC: E04B1/41
Filed: 1978-11-15
Abstract: An anchor which is embedded in a concrete ceiling for suspension of a ceiling panel, electrical wiring pipe or air conditioning duct comprises a metallic suspension member 11 and a support member 21 formed of a synthetic resin material. The suspension member 11 includes a cylindrical body 12 which is open at its lower end and has an axial threaded bore 16, a flange 13 at the top, and a plurality of needles 14 each having an end secured to said flange and extending downwardly in parallel and spaced relationship with the body 12. The support member includes a sleeve 22 which surrounds the body and a pedestal 23 extending from the lower end of the sleeve in radially outward direction. The pedestal 23 is formed with a plurality of openings 24 through which the needles 14 extend. <IMAGE>
Patent GB-2012359-A (GB)
Title: Fuel Injection Nozzle
IPC: F02M61/20
Filed: 1978-11-20
Abstract: A fuel injection nozzle has valve member 16 biased to the closed position by a spring 32 and piston 25 housed in bore 24, the space 19 being connected to the inlet 11 of the nozzle by way of a non-return valve at the top of piston 25. A space between the piston and valve member is vented to a drain 27a. In order to minimise leakage of fuel, the piston 25 and the bore 24 define a groove 27 which is connected to the fuel inlet so that any fuel leaking from the end of the piston subjected to the pressure of fuel at the inlet collects in the groove and returns to the inlet via cannelure 30 when the pressure of fuel at the inlet falls. <IMAGE>
Patent GB-2035528-A (GB)
Title: An ice-making device
IPC: F25C1/08
Filed: 1978-11-24
Abstract: Ice is formed on the outside of conductive tubes 1a lowered into a body of water. Cold gas is passed through the tubes so that the water outside is frozen. The tubes are connected in series by pipes 1b which form an outlet 3b from one tube and an inlet 2b to the next tube. The inlet is arranged at an angle to the axis of the tube and at a point intermediate its ends. The container for the water is movable away from the tubes on a pivoted arm system. <IMAGE>
Patent GB-2012101-A (GB)
Title: Laser gyroscope
IPC: G01C19/66
Filed: 1978-12-20
Abstract: A four-frequency laser gyroscope utilizes a four-segment nonplanar propagation path 108, 110, 112, 114 to provide a first frequency splitting by supporting waves with different resonant frequencies for opposite senses of circular polarization. The path is through passages in a single solid block 102 of low thermal coefficient of expansion material. The passages intersect at surfaces of the block whereat mirrors are positioned. A second frequency splitting is provided by a Faraday rotator 156 having a thin plate of rare earth-doped glass with a high Verdet constant positioned within an aperture in a permanent magnet. Electrodes excite laser action in a gas in the passages to establish the waves. A narrow angle of incidence is provided for the beams incident upon the output mirror on face 122 to prevent cross coupling between beams within the output optics structure. The Faraday rotator plate blocks the gaseous flow path and reduces output frequency drift caused by contaminating particles. <IMAGE>