baber/WOPTO huggingface dataset:
Patent GB-1127469-A (GB)
Title: Naphthalene derivatives
Inventor: CROWTHER ALBERT FREDERICK
IPC: C07C/
Filed: 1966-10-03
Abstract: 1,127,469. Naphthalene derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Sept., 1967 [3 Oct., 1966], No. 44000/66. Addition to 994,918. Heading C2C. Racemic compounds of the general formula (wherein R<SP>1</SP> stands for the cyclopropyl or cyclobutyl radical and the naphthalene nucleus is optionally substituted by a halogen atom or an alkyl or hydroxyalkyl radical) and their acid addition salts are prepared by (a) reacting a compound of the formula (wherein A stands for a group of the formula or -CHOH.CH 2 Halogen and the naphthalene nucleus is optionally substituted as stated above) with cyclopropylamine or cyclobutylamine, or (b)-in the case where R<SP>1</SP> stands for the cyclobutyl radical-reacting a compound of the formula (wherein the naphthalene nucleus is optionally substituted as stated above) with cycobutanone under reducing conditions, optionally followed in either case by salt formation. The compounds of the invention are #- adrenergic blocking agents, and may be administered in the form of pharmaceutical preparations containing them together with a diluent or carrier.
Patent GB-1005771-A (GB)
Title: Manufacture of chlorine
IPC: B01J8/12
Filed: 1963-11-07
Abstract: Chlorine is produced by contacting HCl and/or NH4Cl with moving beds of reaction masses composed of inert granular supports impregnated with chlorides or oxides of Fe, and with chlorides of Cu, or Cd, and with alkali metal chlorides and flowing by gravity through superimposed reaction zones wherein occur successively (1) reduction of metal chlorides and oxides by a reducing gas, e.g. H2, water gas <PICT:1005771/C1/1> or coal gas, circulating co-currently with the reaction mass, (2) chlorination of the reduced mass by gaseous HCl and/or NH4Cl circulating countercurrently, followed if desired when NH4Cl is used by sweeping of the reaction mass with an inert gas and (3) oxidation of the chlorinated mass by O2 or a free O2-containing gas flowing countercurrently, liberation of Cl2 and transformation of chlorides into oxides the oxidized reaction mass being returned to the reduction stage.  A table is given showing results obtained using the apparatus illustrated which comprises reduction chamber 1, chlorination chamber 2 and oxidation chamber 3, through which granules of inert support, say diatomaceous earth, impregnated with FeCl3, KCl and CuCl2, are circulated successively and continuously by means of conduits 4 and 5, discharge pipe 6 and elevator 7.  Reducing gas enters by pipe 8 and exit gases leave by pipe 9.  HCl or NH4Cl vapour enters by pipe 10 and air by pipe 12, the corresponding exit gases leaving by pipes 11 and 13 respectively. Prior to addition of HCl or NH4Cl, H2 and O2 may be passed into chambers 1 and 3 respectively to heat the reaction masses, temperatures of 400 DEG  to 550 DEG  C. being required in these chambers and a temperature of 350 DEG  to 500 DEG  C. being desirable in chamber 2.  An extra chamber may be provided, between chambers 2 and 3, in which the masses may be swept with an inert gas, say N2 or CO2, for recovery of NH3 from any NH3-metal chloride complexes formed.
Patent GB-968572-A (GB)
Title: Terminal unit for movable electrical apparatus
Inventor: COUZENS SYDNEY NORMAN
IPC: H02K5/22
Filed: 1962-11-21
Abstract: 968,572. Couplings. MUIRHEAD & CO. Ltd. Aug. 22, 1963 [Nov. 21,1962], No. 44040/62. Heading H2E. A terminal arrangement for supplying a rotatable electrical device through conductors 16, 17, Fig. 4, comprises a support 3 carrying common terminals 9, 9<SP>1</SP>, Fig. 5, for each conductor and an external flexible flylead 18, 19, and anchoring means 10, 10<SP>1</SP> for the flyleads 18, 19 so that the conductors 16, 17 are prevented from flexing or twisting when the device is rotated and the terminals 9, 9<SP>1</SP> are protected from strain by the anchoring means, the flyleads taking up any twist involved (which may be up to 2 revolutions each way). An anchoring means 10, say, consists of a spiralled end of an insulated wire loop 7, Fig. 3, not shown, which passes through holes 5, 5<SP>1</SP> in the support 3 and protrudes at the other end to form the hooked terminal 9. The support 3 has a spigot part rigidly mounted using an adhesive (e.g. epoxy resin) in the end of the rotating shaft 13 of the device, which may be a " synchro." The shaft 13 is carried by bearing 14 and is diametrically bored at 15 to allow the conductors 16, 17 from the winding 12 to enter the hole 4 in the spigot 2. A similar terminal arrangement for a three winding synchro is mentioned, Fig. 6 (not shown).
Patent GB-917166-A (GB)
Title: Improvements relating to perambulators and the like
Inventor: PENFOLD FREDERICK THOMAS
IPC: B62B9/12
Filed: 1960-12-28
Abstract: 917,166. Collapsible vehicles. LINES BROS. Ltd. Sept. 29, 1961 [Dec. 28, 1960], No. 44468/60. Class 108(1). A detachable perambulator body comprises a rigid base 2, having stiffeners 7, 8, connected by flexible material to an upper frame 1 comprising inverted metal channels welded at the corners of the body. The side members of the upper frame have integral depending metal skirts 13 which are bent outwardly so that in the erected position of the body the fabric is bent outwardly to resemble the appearance of a coach-built body. The upper and lower frames are held in spaced relationship by U-shaped rods pivoted to the upper frame at 32 and engaging spring clips 33 secured to the stiffeners 8. When the body is collapsed the upper frame completely encloses the lower frame. Specification 917,165 is referred to.
Patent GB-1113096-A (GB)
Title: Gas-circulating system for compressed-gas power switches
IPC: H01H35/32
Filed: 1965-10-21
Abstract: 1,113,096. Gas-blast switches. BROWN, BOVERI & CO. Ltd. 21 Oct., 1965 [23 Oct., 1964], No. 44676/65. Heading H1N. The re-circulating system of a gas-blast circuit-breaker comprises high- and low-pressure vessels 3, 2 between which a substantially constant pressure difference is maintained by a compressor 7 under the control of a differential pressure switch 15, a pressure-sensitive device 14 functioning to maintain a constant quantity of gas in the sytem. In the arrangement shown, a relay 17 is energized momentarily when the circuit-breaker is tripped open and starts the compressor 7 and opens a valve 5. Gas from the vessel 2, now at an increased pressure due to the opening of the circuit-breaker, flows through the valve 5 to an auxiliary tank 6 and operates a pressure-responsive switch 16 to maintain the compressor running. At the same time the differential pressure switch 15 operates to maintain the valve 5 open until the difference in pressure in the vessels is restored. Then the switch 15 de-energizes the valve 5, which closes, causing the pressure in the tank 6 to fall so that the switch 16 switches off the compressor. Should the pressure difference become too great, then the switch 15 opens a valve 4 to permit gas to flow from the high-pressure vessel to the low-pressure vessel. In the event of the quantity of gas in the system changing, the pressure-sensitive device 14 closes contacts to cause the opening of a valve 8 to admit gas from a gas-supply source 12, or the opening of a valve 9 to release gas from the vessel 2 to the source 12. The device 14 (Fig. 3, not shown) comprises a sealed bellows disposed in the vessel 2 and filled with gas to a higher pressure than that within the vessel 2. A spring acts against the pressure applied by the gas in the bellows to compensate for the normal pressure difference acting on the bellows. This arrangement provides a pressure-operated switch with a characteristic which conforms to the pressuretemperature variation for a constant quantity of gas.
Patent GB-1116085-A (GB)
Title: Improvements in hydraulic servomotors
Inventor: JOHNSON BRIAN ALAN
IPC: F15B9/10
Filed: 1964-11-04
Abstract: 1,116,085. Hydraulic brake servomotors. GIRLING Ltd. 2 Nov., 1965 [4 Nov., 1964], No. 45039/64. Heading F2F. A brake servomotor of the "open-centre" hydraulic type comprises a piston 3 secured to an output member 8, for power operation of a master cylinder (33, Fig. 2, not shown) and a valve assembly consisting of an input member 11, operated by the brake pedal and having passages 18, 19, 21, a face valve 16 carried by the input member and co-operating with a seat 17 on the output member, and passages 22 through the output member whereby fluid normally passes freely between an inlet 6 and an outlet 7 but is restricted by the valve 16 when the input member is moved forwardly, as a result of which pressure is built up both behind the piston 3 and in the space bounded by the seat 17. Pressure in the latter space both reacts on the input member to provide "feel" and adds to the force exerted on the output member by the piston, and it is said that, by suitably proportioning the areas of the various components, unwanted movement of the piston as a result of either fluctuations in the supply of fluid or back pressure at outlet 7, where the latter is connected to a valve 37 (Fig. 2, not shown) controlling power steering, is avoided.
Patent GB-1478156-A (GB)
Title: Apparatus for providing a digital signal representative of the unbalance of a resistance bridge
Inventor: GUSTAFSSON J K
IPC: G01L1/22
Filed: 1974-10-17
Abstract: 1478156 Voltage measuring BOFORS AB 17 Oct 1974 [23 Oct 1973] 45121/74 Heading G1U In order to compensate for offset voltages, shown as EOF in Fig. 1, that arise either thermoelectrically or just by drift, when measuring the output voltage eb of a D.C. energized bridge 2, the measurement is made in two phases : in the first phase, with a switch 1 in the position shown, the effective output voltage E i  from the bridge is amplified 3 and digitized and stored 5; in the second phase switch 1 is changed over to reverse the polarity of the supply to the bridge and the effective output voltage is amplified 3 and digitized (using either the first digitizer again or a second digitizer) and stored in a second converter 4; finally the two stored measurements are subtracted 6 and the difference is indicated 7, the difference being independent of the offset voltage E OF  and proportional to the true bridge output voltage eh. In a modification, Fig. 2 (not shown) a rectifying amplifier 3 is used and the sum of the two conversions, rather than their difference is formed. The converters 4, 5 may be of either the dual-ramp or the voltage-controlled-oscillator type.
Patent GB-1201036-A (GB)
Title: Improvements relating to electric switches
Inventor: BLUME HERBERT HERMAN ALBIN
IPC: H01H33/34
Filed: 1966-10-10
Abstract: 1,201,036. Fluid actuation of switches. SWITCHGEAR & EQUIPMENT Ltd. 10 Oct., 1967 [10 Oct., 1966], No. 45191/66. Heading H1N. A switch shaft 12 is driven by an hydraulic motor 10 fed from an accumulator 16 by a change over valve 42, the accumulator being charged by a pump 30 from a reservoir 15 whenever the valve is operated. The valve is of the kind (described in Specification 1,119,849, Division F1) which moves to either extreme position and remains there until positively moved to the other position. As shown in Fig. 2, the valve is operated by a screw and nut drive 44 from the pump motor 41, the pump being of a kind whose operation is independent of the direction of rotation of the motor. So as to allow the pump to continue until the desired pressure is reached in the accumulator after the valve has completed its movement, the nut may run off the end of the screw against a spring. Alternatively, if the pressure on the valve is only light, the nut may be free to rotate but such rotation is restricted by a paddle rotating in a liquid bath. In an alternative arrangement (Fig. 1, not shown) the valve may be solenoid operated, the pump motor being energized whenever a solenoid is energized.
Patent GB-1068263-A (GB)
Title: Polyfluoro-oxetenes and derivatives thereof
IPC: C07D305/10
Filed: 1965-10-26
Abstract: Hydrocarbon adducts of compounds of the formula <FORM:1068263/C4-C5/1> where X and Y are chlorine or fluorine, are obtained by reacting said compounds with normal alkanes of 3 to 14 carbon atoms.  The formation of an adduct from n-hexane and 2,2-bis (trifluoromethyl)-3,4-difluoro-oxetene is exemplified. The adducts may be used as lubricants.ALSO:The invention comprises oxetenes of the formula <FORM:1068263/C2/1> where X and Y are chlorine or fluorine, and oxetanes of the formula <FORM:1068263/C2/2> where A is bromine or iodine.  The oxetenes are prepared by dehalogenating or dehydrohalogenating an oxetane of formula <FORM:1068263/C2/3> where P is hydrogen or chlorine, and Z is fluorine, chlorine or bromine. Dehalogenation may be effected by (a) subjecting the oxetane to the action of hydrogen or a metal which is above chlorine in the electromotive table of elements or (b) contacting a solution of the oxetane in an inert solvent with finely divided zinc or (c) passing the vapours of the oxetane and hydrogen over a carbon-palladium catalyst at 150 DEG  to 300 DEG  C., using a stoichiometric deficiency of hydrogen.  Dehydrohalogenation may be effected by (a) contacting the oxetane with an aqueous solution of a strong base or (b) thermal cracking at 250 DEG  to 500 DEG  C.  The novel oxetanes are prepared by reacting the oxetenes with bromine or iodine.  These oxetanes are particularly useful when converted into Grignard reagents.  The oxetenes readily form adducts with n-alkanes having 3 to 14 carbon atoms, and these adducts find use as lubricants.  The reaction of a compound of formula <FORM:1068263/C2/4> with acetone in the presence of water to form a compound of formula <FORM:1068263/C2/5> is also described.ALSO:Hydrocarbon adducts of compounds of the formula <FORM:1068263/C3/1> where X and Y are chlorine or fluorine, with normal alkanes of 3 to 14 carbon atoms are used as solvents and/or plasticizers for polyvinylidene fluoride, polyvinyl fluoride, polyvinyl chloride and polyacrylate mixtures with hydrocarbon and chlorocarbon polymers.
Patent GB-1104786-A (GB)
Title: Teeth and dentures containing the same
IPC: A61K6/896
Filed: 1965-10-27
Abstract: A porcelain tooth is primed with a hydrolystate of a material selected from (1) compounds of the general formula <FORM:1104786/A5-A6/1> , wherein D is a hydrolysable group or atom, n is 1, 2, or 3, b is 0, 1, or 2, n+b is 1, 2, or 3, R111 is a monovalent hydrocarbon or halohydrocarbon radical, R is C1-4 alkylene, c is 0 or 1, A is <FORM:1104786/A5-A6/2> or <FORM:1104786/A5-A6/3> radical (A being <FORM:1104786/A5-A6/4> when c is 0) wherein R1 is an aliphatic radical composed of carbon, hydrogen, and oxygen atoms, the oxygen atoms being present in the form of ether linkages and/or hydroxyl groups, and the ratio of carbon to oxygen atoms is R1 being not greater than 3 to 1, a is 0 or 1, R11 is H, Me, or <FORM:1104786/A5-A6/5> wherein X is H or a C1-6 hydrocarbon radical or a <FORM:1104786/A5-A6/6> radical and Q is H or phenyl -CH=CH.CH3 or <FORM:1104786/A5-A6/7> , and (2) co-polymers of the above compounds with an unsaturated organic monomer.  The primed porcelain teeth may be chemically bonded to an acrylic denture base material, e.g. a blend of an acrylate and a room-temperature-vulcanising silicone rubber.  Any desired technique may be used to apply the primer, which may be applied as a solution in water or an organic solvent.  The primed teeth may be incorporated into the denture using conventional techniques.  The denture may in addition contain pins and holes for anchoring the teeth.  The primer material, or hydrolysate thereof, may be added to the acrylic denture base material prior to moulding, in which case the porcelain teeth are primed in situ during the cure of the denture.  Exemplified hydrolysable groups D include methoxy, ethoxy, propoxy, isopropoxy, formyloxy, acetoxy, propionoxy, -O(CH2)zOCH3, -O(CH2)2OH, or a chlorine or bromine atom.  Examples of suitable unsaturated organic monomers are acrylates, maleates, itaconates, fumarates and acrylonitrile.
Patent GB-1024639-A (GB)
Title: Traverse apparatus for winders
IPC: B65H54/28
Filed: 1963-11-20
Abstract: A traversing apparatus for yarn winding machines comprises a plate 23, Fig. 4 (not shown), on which the yarn rests whilst it is being traversed, and belts 16, 17 moving in opposite directions and carrying guide pawls 24, 25 that project above the level of the plate 23 at the commencement of a traversing action and sink downwardly during the traversing action.  In Fig. 4 the pawl 25 on the belt 17 has just carried the yarn 45 from left to right and has sunk below the guide edge of the plate 23.  The pawl 24 on the belt 16 is just about to engage the yarn and carry it from right to left. Fig. 5 (not shown) shows the position of the pawl 24 after it has carried the yarn from right to left, the pawl 24 having sunk to a level at which it releases the yarn and permits a further pawl 25 on the belt 17 to traverse the yarn to the right again.  By passing the belts 16, 17 over suitably arranged pulleys they can serve on the traversing means for a plurality of winding machines arranged in a substantially end to end relationship.  To ensure exact synchronism of the pawls 24, 25 the two belts 16, 17 may constitute overlapping portions of a single belt.  Chains may be used instead of the belts 16, 17.  The wound packages may be drum driven and biased against the drum by weighted lever means.
Patent GB-1406652-A (GB)
Title: Electrode strips for electrolytic devices
IPC: H01G9/048
Filed: 1972-10-04
Abstract: 1406652 Electro-chemical etching ION CAPACITOR CORP 4 Oct 1972 [6 Oct 1971] 45821/72 Heading C7B [Also in Division H1] A method of making a strip electrode for an electrolytic capacitor or other electrolytic device comprises depositing metal particles on a strip of base material, compacting the deposited particles to such an extent that the capacitance per unit area is reduced then etching the compacted particles to increase the capacitance per unit area. The base may be gauze, paper, non-woven fabric or foil. In a continuous process molten metal e.g. aluminium is sprayed on to one, then the other, side of a base strip to provide a coated strip about 0.α5 inch in thickness, the coated strip is compacted by rollers to a thickness of 0.008 inches and is then etched with hot nitric acid or potassium hydroxide at room temperature, or electro-chemically, using NaCl/Na 2 SO 4  solution and washed clean. Preferably etching is terminated just before the conductivity of the strip begins to be reduced. Connection tabs are stitched or stabled prior to forming an oxide coating by anodizing.
Patent GB-1516585-A (GB)
Title: Thermal printing device
IPC: H04N1/032
Filed: 1976-11-05
Abstract: 1516585 Selective printing NORTHERN TELECOM Ltd 5 Nov 1976 [6 Nov 1975] 46246/76 Heading B6F A thermal print head comprises a bar 10 of resistive material having electrical conductor patterns to each side thereof, the conductor patterns including connections to the bar 10, the corresponding connections from the conductor patterns being connected to the bar at directly opposite points.
Patent GB-1055269-A (GB)
Title: Improvements in a process for the production of antiinflammatory substances from mammalian eosinophils
Inventor: ARCHER RICHARD KENDRAY
IPC: A61K35/15
Filed: 1962-12-07
Abstract: The anti-inflammatory aqueous extract of eosinophils obtained by the process of the parent Specification is purified from protein material by subjection to ultrafiltration through a material having an effective pore size of less than 5m  and collecting the filtrate.
Patent GB-1038889-A (GB)
Title: Vehicles for spreading, on the ground or roads, materials such as gravel, sand and the like
IPC: E01C19/21
Filed: 1963-11-25
Abstract: 1,038,889. Spreading sand. A. GRUVRIS. Nov. 25, 1963 [Nov. 27, 1962], No. 46394/63. Heading AID. [Also in Division E1] Sand is deposited on a road by means of a tippable container 10 and hot water is sprayed in front of the sand from a tank 4 the water in which is heated from the exhaust system of the vehicle. As shown the silencer 8 is fitted in the tank 4 and the water is fed from the tank 4 by means of air pressure. In a modification the exhaust system is used to heat the water and the exhaust gases are fed to the water tank under the control of a device sensitive to ambient temperature. A blower may be provided to blow air through a pipe to clear away loose snow and ice. The water tank may be mounted on a trailer and connected through flexible lines to the exhaust and air pressure systems of a lorry.
Patent GB-1520509-A (GB)
Title: Internal combustion engine
IPC: F02B1/04
Filed: 1975-11-11
Abstract: 1520509 I C engine pre-combustion chambers; heating mixture TOYOTA JIDOSHA KOGYO KK 11 Nov 1975 [13 Nov 1974] 46622/75 Heading F1B An I.C. engine comprises a main combustion chamber 20 in a cylinder head 21, an inlet passage 23 for conducting a first air/fuel mixture to a main inlet port 24 which is controlled by an inlet valve 22, an auxiliary combustion chamber 25 having a spark-plug 29, an auxiliary inlet opening 26 directed towards main inlet port 24 and an auxiliary passage 30 extending through the head 21 for supplying a second, richer air/fuel mixture and having an outlet end positioned adjacent main inlet port 21 whereby, in operation of the engine, during induction of air/fuel mixture through the main inlet port a stream of rich air/fuel mixture flows into the auxiliary chamber while a lean air/fuel mixture flows into main chamber 20, the auxiliary passage comprising a first portion which extends through the cylinder head to an opening 31 into the inlet passage, and a second portion, part of the wall of which is defined by a sleeve 32 inserted into and engaging the wall of the inlet passage and extending between said opening and said outlet end. The opening 31 is an annular groove formed in the inlet passage wall. The second portion of the passage is formed by indenting the sleeve at 34. The sleeve is formed of thin copper so that by its deformation it accomodates recession of the valve 22 due to wear. The second mixture is heated as it flows through passage 30. Reference is made to Specification 1520504 and 1520510.
Patent GB-471860-A (GB)
Abstract: 471,860. Filters. RICKS, SUTCLIFFE, & BOWDEN, Ltd., and WHITTLE, E. March 9, 1936, No. 7010. [Class 46] A filter for water, for example the water from swimming baths, is provided with a discharge orifice so formed and disposed that the filtering-material above falls without hindrance to the edge of the orifice at the exterior of the apparatus, fresh material to replace the used material falling freely from above. The Figure shows a filter 1 with filtering- material supported on a perforated false bottom 3. The material is supplied through a door 4 and falls out when a door 5 is opened. The water enters through a pipe 6 and after filtration leaves through a pipe 7. A jet of water may be arranged to detach from the bottom 3 any filtering-material adhering thereto. Means may be provided for automatically cutting of the water, initiating the discharge of the filtering material, applying the water jet, charging a fresh supply of material, and admitting water again, at predetermined intervals. The filtering material may be coke, coal, charcoal, cinders, wood granules or fragments, or like combustible substances.