baber/WOPTO huggingface dataset:
Patent GB-952267-A (GB)
Title: Improvements in and relating to electrical control systems for guided missiles
IPC: F41G7/30
Filed: 1962-07-09
Abstract: 952,267. Automatic steering control. CONTRAVES A. G. July 9, 1962 [July 7, 1961],No. 26232/62. Heading G3R. In an automatic control system for a missile, D. C. signals corresponding to errors in position along mutually perpendicular axes fixed in space and normal to the direction of flight are converted to amplitude modulated A. C. signals, in phase quadrature with each other, which are applied to demodulators supplied through a phase-shifter controlled by a roll attitude gyro from the same A. C. source as the modulators so that D. C. signals are produced to respectively control movements of the missile relative to mutually perpendicular axes fixed in the missile normal to its longitudinal axis. In Fig. 1 direct voltages M x , M y  which are a function of the velocity of, and errors in the position of, a missile along mutually perpendicular axes fixed in space and normal to the direction of flight, are respectively applied to modulators Mod, Mody the A. C. outputs of which are oppositely phase shifted at PS x  PS y  so that they are in phase quadrature. These signals are combined vectorally and applied through filters BP 1  BP 2 , amplifier V R , and limiter BGR to phase shifters PS x <SP>1</SP>PS y <SP>1</SP> producing two further A. C. signals in phase quadrature which are then applied to demodulators PD # , PD # . The reference A. C. applied to the demodulators is obtained from the same source OSZ which supplies the modulators but is phase shifted at PS #  by an amount dependent on the angle of roll of the missile as detected by a roll attitude gyro RK. The direct. voltage outputs U # , U #  of the demodulators are thus dependent on errors in the position of the missile along mutually perpendicular axes fixed in the missile normal to the longitudinal axis and are utilised, as shown, to adjust a swivelling jet SD about perpendicular transverse axes in the missile to correct the course. The amplification of amplifier V R  and the limits imposed by limiter BGR may vary with altitude by signals applied at VK 1  VK 2  or with time by virtue of programme devices PG1, PG2.
Patent GB-998375-A (GB)
Title: Sectional roll
Inventor: ROBERTSON JOHN DOUGLAS
IPC: F16C13/00
Filed: 1964-06-25
Abstract: 998,375. Rollers. MOUNT HOPE MACHINERY Ltd. June 25, 1964, No. 26234/64. Heading F2U. A curved or straight sectional roller consists of a spindle 10 carrying a series of annular spool elements 12 with end clearances 22, the spools in turn carrying abutting sleeve sections 40, 42 forming a continuous outer surface and with their joints 48 axially displaced from the spool clearance gaps 22. The spools 12 are mounted on ball-bearings 16 whose inner races 24 are secured between spacers 23 by locking pins 32 with heads received in a keyway 28 in spindle 10. As shown, the joint between adjacent sleeve sections is of stepped form with the outer portions 62 cemented together, and the inner end portions 50 of one of each pair of adjacent sleeves also cemented to its spool element 40 or 42. In other arrangements the sleeve joints are of the simple butt-type, Fig. 4 (not shown), while in other stepped forms plain or screw-threaded metallic reinforcing rings are incorporated in the joints, Figs. 6 and 7 (not shown). The sleeves are compressed axially by end caps 47, but in the case of a curved roller these are preferably so arranged that there is substantially no compression in the outer convex side of the roller. The arrangement permits ready replacement of any worn sleeve sections.
Patent GB-843602-A (GB)
Title: Improvements in or relating to the manufacture of nitrofuran derivatives
IPC: C07D413/12
Filed: 1956-08-29
Abstract: The invention comprises compounds of the general formula: <FORM:0843602/IV(b)/1> wherein R is hydrogen or an alkyl or dialkylaminomethyl group, and a process for the preparation of N-(5-nitro-2-furfurylidene)-3-amino-2-thio-oxazolidones by condensing 5-nitro-2-furaldehyde or a functional derivative thereof with a 3-amino-2-thio-oxazolidone, which may suitably be employed in the form of a condensation product with an aldehyde or ketone.  The 3-amino-2-thio-oxazalidone used as a starting material is suitably prepared by reacting a hydrazine-2-hydroxy-alkane or a 1-hydrazino-3-dialkylamino-3-propanol with carbon disulphide or thiophosgene in the presence of an alkali.  The products are used as chemotheraputic agents.  In examples (1) 2-hydroxypropyl-hydrazine, salicaldehyde and carbon disulphide are refluxed with aqueous sodium hydroxide to give N-(salicylidene)-3-amino 5-methyl-2-thio-oxazolidone together with some 2-salicylidene-1-(2-hydroxypropyl) dithiocarbazic acid which is also converted to N-salicylidene-3-amino-5-methyl-2-thiooxazolidone by pyrolysis of the lead salt, and the combined yield of salicylidene thio-oxazolidone is condensed with 5-nitro-2-fufural to give N-nitro-2-(5-furfurylidene)-3-amino-5-methyl-2-thio-oxazolidone; (2) hydroxyethyl hydrazine is condensed with thiophosgene and the product is reacted with 5-nitro-2-furfural to give N-(5-nitro-2-furfurylidene)-3-amino-2-thio-oxazolidone and (3) 1-hydrazino-3-dimethylamino-2-propanol is condensed with thiophosgene and the product is reacted with 5-nitro-2-furfural to give N-(5-nitro-2-furfurylidene) -3-amino-5-dimethylaminomethyl-2-thio-oxazolidone.ALSO:Pharmaceutical preparations having antiprotozoal activity comprise N-(5-nitro-2-furfurylidene)-3-amino-2-thiooxazolidones (see Group IV(b)) optionally bearing an alkyl or dialkylaminomethyl substituent in the 5-position of the oxazolidine ring, and a pharmaceutical carrier.  Preparations for oral administration may take the form of gelatine capsules, suspensions, tablets or lozenges.
Patent GB-1418703-A (GB)
Title: 3-alkyl-9-substituted-1,2,3,4-tetrahydrocarbazoles
IPC: C07D209/86
Filed: 1973-06-02
Abstract: 1418703 3 - Alkyl - 9 - substituted 1,2,3,4- tetrahydrocarbazole derivatives PFIZER Ltd 31 May 1974 [2 June 1973] 26414/73 Heading C2C Novel compounds of the Forumula I wherein R is C 3 -C 5  alkyl, R<SP>1</SP> is hydrogen, halogen, alkyl alkoxy or hydroxy and Y is either a group of the formula -Alk-NR<SP>2</SP>R<SP>3</SP> in which R<SP>2</SP> and R<SP>3</SP> each are alkyl or together with the nitrogen to which they are attached form a saturated heterocyclic group containing at least 4 carbon atoms and optionally an oxygen, sulphur or sulphonyl group and "Alk" is a C 2 -C 4  alkylene in which the free valencies are on different carbon atoms or an aminocyclic group of the formula -C n H 2n -CHZ, in which n is 0 to 3 and Z is a divalent group which completes a saturated heterocyclic ring containing a nitrogen and at least 4 carbon atoms, the number of carbon atoms in the shortest chain of carbon atoms separating the nitrogen atom in the ring from the nitrogen atom to which Y is attached being 2 to 4, wherein alkyl and alkoxy groups have 1 to 4 carbon atoms, and N-oxides said oxide group being present on the nitrogen atom of Y and pharmaceutically acceptable acid addition salts of the compounds I may be prepared by condensing a sodium salt of a 9-unsubstituted R,R<SP>1</SP>-substituted - 1,2,3,4 - tetrahydrocarbazole with a compound Y-Cl optionally followed by formation of the N-oxide or an acid addition salt. Alternatively the compounds I may be prepared by reaction of the above starting material with a compound hal-Alk-Q where Q is a leaving group or hal-Alk-OH to form a tetrahydrocarbazole substituted in the 9-position with -Alk-hal or Alk-OH respectively, followed by halogenation of the latter to -Alk-hal and reaction with an amine HN-R<SP>2</SP>R<SP>3</SP>. The compounds I may also be prepared by cyclization of an R<SP>1</SP>,Y-substituted phenyl hydrazine with a 4-C 3 -C 5 -alkylcyclohexanone in the presence of acid. Pharmaceutical compositions of the compounds I with the usual excipients inhibit gastric acid secretion when administered orally or parenterally.
Patent GB-1397031-A (GB)
Title: Igniting and operating gas discharge lamps
IPC: H05B41/04
Filed: 1973-06-04
Abstract: 1397031 Starting and running discharge lamps MAGYAR OPTIKAI MUVEK 4 June 1973 26497/73 Heading H2H A method of, and apparatus for, igniting and operating a gas discharge comprise two capacitors which are charged to first and second voltage levels respectively which are simultaneously switched so as to connect the first capacitor to the cathode circuit of the lamp and to discharge the second capacitor through an inductive device connected to the anode circuit of the lamp, a stabilized direct current supply being connected to the lamp to maintain the operation thereof after ignition. The gas discharge lamp is a deuterium lamp V4 and forms part of a single beam photo-meter instrument which also includes a tungsten lamp V3. As shown in the figure a multiple contact switch K3 is in position W in which the tungsten lamp V3 is energized from a stabilized D.C. source which includes a bridge rectifier D3-D6, transistors T3, T4, an operational amplifier 12 and a Zener diode Z11; a pilot lamp L1 indicating operation of the instrument with the tungsten lamp V3. To bring the discharge lamp V4 into operation and to cut out the tungsten lamp V3 the various contacts of the switch K3 are changed over to the position D. Capacitor C20 charges by way of a diode D18 and contact E5 of a relay E, and the capacitors C6, C7 forming part of a voltage doubling circuit are charged by way of contact K3/1 and contact E1 of the relay E. The cathode of the lamp V4 is also supplied with heating current by way of contacts K3/V; K3/V1 and contacts E3, E4 of the relay; a contact K3/1V substituting a pilot lamp L2 for the lamp L1 to indicate operation of the discharge lamp V4. Furthermore a timing circuit including the relay operating coil E is energized and after a time determined by a resistor R34 and a unijunction transistor T19, a pulse is produced to fire a thyristor Tirl which causes energization of the relay coil E thereby changing over the relay contacts. Contact E2 connects the capacitors C6, C7 to the cathode of the lamp and contact E5 connects the capacitor C20 so that it discharges through an ignition transformer TR2 connected to the anode of the lamp whereupon the lamp is ignited. Contacts E3, E4 remove the heating current for the lamp and a contact E6 de-energizes the relay timing circuit. The stabilized supply to the lamp V4 is the same as in the case of the lamp V3 with the exception that the resistor R59 is short circuited by contact K3/V111 of the switch K3. By the changeover of contact E1 from the 100V tapping to the 65V tapping on the transformer Tr1 the lamp runs at a lower voltage after its ignition.
Patent GB-1149940-A (GB)
Title: Production of resins
Inventor: WORRALL ROY
IPC: C08F8/14
Filed: 1966-10-26
Abstract: 1,149,940. Resins. MONSANTO CHEMICALS Ltd. 7 Sept., 1967 [26 Oct., 1966], No. 26498/68. Divided out of 1,138,486. Heading C3P. Resins containing acids or salt groups are prepared by a process in which a copolymer of an aliphatic olefinically unsaturated hydrocarbon and an unsaturated alcohol is reacted in solution with an anhydride of an acid containing at least two carboxyl groups. The resin may be a copolymer of ethylene, propylene, butene-1, isobutene, hexene, 2,2,4-trimethylpentene-1, butadiene, isoprene or 1,5-hexadiene; and vinyl, allyl, crotyl or para-vinylbenzyl alcohol or 2-cyclohexene-1-ol; optionally with vinyl, acrylic or methacrylic esters, nitriles or vinyl or vinylidene halides. The products may be converted to salt, amide or ester derivatives, and may be cross-linked with metal ions, polyhydric alcohols or polyamines; or by heating where the copolymer also contains residual hydroxyl groups. Examples describe the reaction of xylene solutions of partially and completely hydrolysed ethylene/vinyl acetate copolymers with phthalic, succinic and maleic anhydrides, and the conversion of the products to sodium salts.
Patent GB-227772-A (GB)
Title: Improvements in clothes pressing machines
IPC: D06F71/34
Filed: 1923-10-16
Abstract: 227,772. Lewis, C. H. Oct. 16, 1923. Ironing-machines w i t h pressing- action only. - A construction that may be applied to either or both of the pressing members comprises a main steam-heated member B formed with a number of hollow projections 7<a>. The flat outer surfaces of these projections may form part of the actual pressing surface, in which case the surface is completed by fitting a correspondinglyshaped thin plate 13 over the recesses 7<x> formed between the hollow projections, so that the face of the plate is level with the outer surfaces of the projections, thus forming a multi-cruciform shaped chamber 7<b> which is heated by an independently controlled supply of steam. In another construction, Fig. 8, the thin plate may cover the whole area of the pressing member, and in a third form, Fig. 7, in which the thin plate is dispensed with and a thicker plate A integral with the main chamber is used, the supplementary chamber 7<b> is formed by spaced lugs 7 on the main chamber which extend to the plate A. Any of these arrangements enables the pressing member to be heated continuously whilst providing means for regulating the temperature of the actual pressing surface without affecting the supply of heating medium to the main chamber. Specification 227,773 is referred to.
Patent GB-1486150-A (GB)
Title: Rotors for axial-flow machines for example fans
IPC: F04D29/36
Filed: 1975-06-26
Abstract: 1486150 Axial-flow fans MITSUBISHI JUKOGYO KK 26 June 1975 27081/75 Heading F1C A rotor for an axial-flow machine, e.g. an axialflow fan, comprises adjustable pitch blades each having a spindle 5 extending radially of the rotor hub 2 and retained by a nut or other retainer 6, a thrust roller bearing 72 being accommodated in an annular liquid-tight chamber 75 open on its radially inward side facing the nut 6, seal means, e.g. O- rings 74, being provided at the radially inner edges of the chamber in contact with the nut. Leakage of lubricant from the bearing is thereby prevented. As shown, the side of the annular chamber 75  adjacent the blade spindle 5 is closed by a sleeve 76 screwed into the rotor hub 2. Instead, an annular insert of inverted U cross-section may be provided within the annular chamber 75 to surround the bearing 72.
Patent GB-602546-A (GB)
Title: Spacing devices for milling cutters and the like
IPC: B23Q17/22
Filed: 1945-10-17
Abstract: 602,546. Milling cutters. HAYCOCK, H. J., and WILSON, H. G. C. Oct. 17, 1945, No. 27116. [Class 83 (iii)] [Also in Group XXV] An adjustable spacing-device for milling- cutter arbors and the like comprises a number of collars adapted to be coaxially arranged on an arbor between and in contact with milling-cutters or the like, the collars having their abutting end faces helically formed so that on relative rotation coaction occurs to cause axial expansion or contraction of the device to effect adjustable spacing of the milling-cutters &c., on the arbor. The arbor 3 carrying a pair of milling-cutters 4, 5, secured by a key 6, has a spacing-device 1, 2, which comprises a stationary part 1 keyed to the arbor by the main key 6 and having a helical face 7, and an adjustable part 2 with a coacting helical face 8 and a slot 9, Fig. 2, so that it may have limited movement over the key 6. A set screw 10 provides for locking the collar when adjusted. Indications on the rotating and stationary parts may show the amount of adjustment. In an alternative arrangement two rotatably adjustable collars may be employed giving coarse and fine adjustment respectively, coacting with a non-rotatable centre collar.
Patent GB-1120374-A (GB)
Title: Phosphorus-containing mannich bases
Inventor: MAIER LUDWIG
IPC: C07F9/30
Filed: 1966-06-17
Abstract: (HO)aP(O)b(RNR1R11)c wherein R is a substituted or unsubstituted methylene group, NR1R11 is a residue of a primary or secondary amine, a = 0, 1 or 2, b = 0 or 1 and c = 1, 2 or 3, and a + b + c = 3 when b = 0 and 4 when b = 1, depending on the valence of the phosphorus atom and when a is 1 or 2 b is 1, are prepared by reacting white phosphorus with an aldehyde or aldehyde-generating compound and a primary or secondary amine or an alkylolamine in a solvent medium, the reagents being selected to produce a compound of the desired formula.  R1 and R11, when taken with the nitrogen atom to which they are attached, may form a heterocyclic group which can also contain oxygen.  Formaldehyde is an especially suitable aldehyde.  The alkylolamines are preferably formed from the aldehyde and amine at low temperature and then heated with the white phosphorus.  The amines may be used in salt form.  The product is a mixture of the various Mannich bases which may be separated. Suitable aldehydes, other than formaldehyde, include paraformaldehyde, acetaldehyde, unsaturated aldehydes such as crotonaldehyde and substituted aldehydes such as trichloroacetaldehyde. Sensitive aldehydes such as phenylacetaldehyde may be used in a blocked form such as acetals, hydrogen sulphite adducts or glycidyl esters.  Suitable solvents include water-soluble compounds such as MeOH, EtOH, n-PrOH, MeCONMe2, pyridine, dioxane, 1,3dioxolane, 1,3-glycerolformal, diethylsulphite, dimethyl sulphone, dimethylsulphoxide, sulpholane and tetramethylurea.  Acetone and methylethylketone are suitable when using secondary amines or alkylolamines and waterimmiscible solvents which may be used include hexane and benzene.  The products, in which at least one of R and R11 are alkyl groups with 12 or more carbon atoms are novel and impart antistatic and flameproofing properties to synthetic fibres such as nylon.  The compound (C6H11)2NCH2N(C6H11)2 is formed as a by-product when dicyclohexylamine is reacted with HCHO and white phosphorus in EtOH at 80 DEG  C. for 3/4 hour.  The compound C5H10N-CH2-NC5H10 is formed as a by-product when N-hydroxymethylpiperidine is reacted with white phosphorus and HCHO in EtOH at 70 DEG  C.
Patent GB-1153618-A (GB)
Title: Gas Washing Apparatus
IPC: B01D47/08
Filed: 1966-06-17
Abstract: 1,153,618. Gas scrubber. AJEM LABORATORIES Inc. 17 June, 1966 [18 June, 1965], No. 27143/66, Heading B1R. Gas to be scrubbed enters a casing 13 below a cowl 32 dipping at the lower end in a body of liquid in the base of the casing and having at its upper end an opening below which is arranged a rotary spray generator of the cage type, and passes upwardly through the spray, liquid is separated from the rising scrubbed gas by baffles 23, and drains to the base of the casing over the external surface of the cowl 32. As shown a chamber 33 depending from the opening in the cowl surrounds the spray generator and the cowl consists of two angled plates extending between opposed walls of the casing. In a modification (Fig. 6, not shown) the opening of the cowl has a short downwardly extending flange and a collar co-axial with but spaced above the opening. The apparatus may be used for scrubbing paint-laden air.
Patent GB-463636-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D21/02
Filed: 1935-10-02
Abstract: 463,636. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Oct. 2, 1935, No. 27151. [Class 17 (i)] Lasting.-In a step by - step lasting-machine of the kind described in Specification 283,978 [Class 17 (i)], mechanism is provided to enable the operator to move the gripper quickly from one side to the other of the location of operation of the fastener driving means, so that both sides of a shoe may be lasted progressively toward the same end. The shank portion 16 of the gripper is connected to the up-draw lever 20 by a universal mounting comprising a bearing pin 50 at right angles to trunnions 38. The shank is guided in a block 24 recessed to house a cylindrical member 64 formed with guiding lugs 66 and slidable along a bar 56 secured to the overdraw rod 26. The member 64 is movable along the bar 56 by a roll 72 on a crank pin carried by a shaft 76 formed with teeth 86 gearing with a segment 88 formed on a member 90 pivoted at 92 and actuated by a hand lever 96. A pin 98 and co-operating slot determine the limits of movement of the member 90. The gripper is resiliently held in either position by a toggle comprising a spring plunger 104 guided in a member fast on a rock-shaft 102 and co-operating with an arm 110 of the member 90. To ensure that the gripper is not left at mid-position, where it would foul the anvil 32, the member 90 carries a knife edge 116 co-operating with a corresponding edge on a slide 118 actuated from the machine cam-shaft early in the cycle. If the gripper has not been moved far enough by the handle 96 the slide 118 completes the movement. The anvil 32 is modified, its shank being bevelled to correspond with a recess in a rod 138 adjustable about its axis and a clamp 142 retained by a screw 146. This construction allows adjustment of the anvil in the direction of its shank and about the axis of the rod 138.
Patent GB-1045675-A (GB)
Title: Process for the electrolytic production of dithionites
Inventor: SPENCER MICHAEL STAINES
IPC: C25B1/14
Filed: 1962-07-16
Abstract: An alkali metal dithionite is prepared by passing D.C. through a cell having a mercury cathode, an aqueous catholyte containing a sulphite/bisulphite solution and an aqueous anolyte containing a salt of the alkali metal required as the dithionite cation, the catholyte and anolyte being separated by a diaphragm permeable to the cation but impermeable to water and sulphur acid anions, the catholyte being continuously circulated through the cathode compartment of the cell and treated externally to remove the alkali metal dithionite formed in it. The catholyte is kept turbulent and the cation concentration is not allowed to fall more than 20% below that chosen for operation. To depress the solubility of the dithionite a salt of the corresponding cation is included in the catholyte which may be cooled externally to assist removal of the dithionite by a filter or centrifuge. The desired cell temperature is obtained by cooling effected by the catholyte circulation, with if desired circulation of the mercury cathode through the cell or passage of cooling fluid in contact with the underside of the mercury layer. The pH of the catholyte is held to 4.5 to 6 either with phosphate, phthalate, acetate, or citrate buffers or preferably by addition of SO2. For the production of sodium dithionite the cell temperature is in the range 0 to 60 DEG C. and if the temperature is above 20 DEG C. the catholyte is cooled externally to 20 DEG C. The maximum C.C.D. is 0.2 amp/cm2 and for cell temperatures of 20 to 30 DEG C. the current should be at least 10 amps/litre of catholyte. The catholyte is circulated to change the cathode compartment contents 1 to 10 times per amp. hour. As described, the cell is a glass cylinder with a mercury pool covering the bottom and fed with catholyte into which dips a methacrylate polymer cylinder closed at its lower end by a thin disc of a sulphonated polystyrene cation exchange resin and containing saturated brine and graphite anodes. To provide an oxygen free atmosphere, the cathode compartment is fed with nitrogen at super-atmospheric pressure and this provides a gas lift to remove the catholyte through a vertical tube, provision also being made to feed SO2 into the catholyte. The cell is maintained at 5 DEG C. and the sulphite-bisulphite catholyte is saturated with sodium chloride.