baber/WOPTO huggingface dataset:
Patent GB-1321506-A (GB)
Title: Apparatus for introducing liquid medicament into an eye
IPC: A61F9/00
Filed: 1971-08-11
Abstract: 1321506 Administering eye medicament D M MAURICE 11 Aug 1971 [13 Aug 1970 10 Feb 1971] 37784/71 Heading A5R A dispenser 10 for introducing liquid medicament into a patients' eye comprises a nozzle 12 for containing a dose of liquid medicament, a device 24 for expelling the dose from the nozzle, an energy storage system 35, and means 26, 27, 37 for rapidly releasing energy stored by the system to actuate the expelling device. The dispenser, preferably formed of a transparent plastics material, is provided at one end with an eye-cup 11. The nozzle 12 is connected to a transverse passage 13 having a hollow needle 14 pointed at its lower end 15 to enable puncturing of a plug 23 so that medicament may pass upwards through the needle when a cap 20 is screwed tight. Before application of a dose, a button 37 is pulled away from the dispenser and rotated so that a slot 26 disengages from a spline 27, whereby disc 25 is held in the position illustrated in Figure 1, thus releasing the spring 35. Further rotation of the cap causes more medicament to enter nozzle 12 as required. In another embodiment, Figure 2 (not shown), a mirror may be used for the patient to direct the nozzle, and hence medicament, into his own eye. A coil (81) surrounds the nozzle (80) for heating the medicament to blood temperature. At the same time a coil (87) in a chamber (86) heats a volume of air to a predetermined temperature at which a valve (88) opens and the release of air from said chamber projects the medicament from the nozzle into the patient's eye.
Patent GB-1504578-A (GB)
Title: Electrode
IPC: C25B11/04
Filed: 1975-09-15
Abstract: 1504578 Anodes HOOKER CHEMICALS & PLASTICS CORP 15 Sept 1975 [7 Oct 1974] 37827/75 Heading C7B An anode, e.g. for brine electrolysis to produce chlorine or chlorate, electro-organic synthesis, electro-winning, cathodic protection or a fuel cell, comprises a conductive substrate, e.g. of valve metal such as Ti, Ta, Nb, Zr or alloy thereof, having an adherent mixed oxide coating on at least part of its surface comprising 9 to 80 mole per cent of In 2 O 3  and 10 to 90 mole per cent of a Pt group metal (Pt, Ir, Rh, Pd, Ru, Os) oxide, preferably Rh 2 O 3 , with or without 0À1 to 20 mole per cent of SnO 2 . The substrate may be provided with a central core of Cu. The substrate e.g. a Ti'plate may be cleaned or etched in hot oxalic acid prior to coating. The coating may be formed by applying, e.g. brushing, spraying, rolling or dipping, to the substrate a slurry of the crushed mixed oxides in a suitable liquid, e.g. water, toluene, benzene or ethanol, and heating and sintering; or a solution of appropriate thermally decomposable salts or esters, such as chlorides, nitrates, resinates or amines. e.g. RhCl 3  and InCl 3  with or without SnCl 2 , and drying and firing in air to convert to the oxides. The procedure may be repeated to achieve a desired coating weight.
Patent GB-1363456-A (GB)
Title: Synthetic cephalosporins and a process for the preparation there of
IPC: C07D271/07
Filed: 1971-08-12
Abstract: 1363456 Cephalosporins BRISTOL-MYERS CO 12 Aug 1971 [12 Aug 1970] 37834/71 Heading C2A The invention comprises a compound of Formula III  wherein A is hydrogen, acetoxy, 2-(5-methyl- 1,3,4 - thiadiazolyl) - thio, pyridinium, picolinium or lutidinium; M is hydrogen, a pharmaceutically acceptable cation or an anionic charge when A is one of the said quaternary ammonium radicals; and Y is a group having the formula or in which Z is C 1 -C 6  alkyl, cycloalkyl having 4 to 7 carbon atoms, monohalo-C 1 -C 6 -alkyl, dichloromethyl, trichloromethyl, alkenyl of 2 to 6 carbon atoms, or any one of groups in which n is zero or one and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> each is hydrogen, nitro, di(C 1 -C 6 -alkyl)amino, alkanoylamino wherein the alkyl group has 1-6 carbon atoms, alkanoyloxy wherein the alkyl group has 1-6 carbon atoms, C 1 -C 6  alkyl, amino, hydroxy, C 1 -C 6  alkylthio, C 1 -C 6  alkoxy, sulphamyl, chloro, iodo, fluoro, or trifluoromethyl. A process for the preparation of compounds of Formula III comprises reacting a compound of Formula VI wherein B is either H or VII or its functional equivalent as an acylating agent, in which X is chloro, bromo or iodo, with a compound of Formula VIII wherein Q is H or provided that when B is H, Q is and when B is VII or its functional equivalent, Q is H, to produce a compound of Formula II and if desired hydrogenating this compound to produce a compound of Formula I A method of treating mammals to cure them of diseases caused by Gram-positive or Gramnegative bacteria comprises administering an effective amount of a compound III as mentioned above or a salt thereof. A pharmaceutical composition comprises a compound III as described above or a salt thereof in conjunction with a carrier or excipient.
Patent GB-1439853-A (GB)
Title: Incremental filter band feed filtration apparatus
IPC: B29C48/692
Filed: 1973-08-10
Abstract: 1439853 Extrusion filter G SMITH 10 Aug 1973 [14 Aug 1972] 38049/73 Heading B5A [Also in Division B1] A filter for a plastics extruder for heat softened materials has length of filter band 44 (e.g. wire cloth) which is advanced in increments across the filter passage 24 to present a fresh area of filter band. Leakage of material under pressure is prevented by blocking the filter band inlet and outlet by (1) moving the band feed clamps 76 during the feeding operation to obstruct gap 56 and maintaining them there and (2) retaining the waste band guillotine knife 94 in the extended position shown. Hydraulic systems control band feed clamps 76 in clamping and feeding, and the guillotine in chopping. The seal of the filter band inlet and outlet passages 48 and 50 may be assisted by cooling through channels 80 and 86 to solidify the plugs of material therein and, these plugs may be softened for band movement by heating through channels 58 and 88. The surface actively filtering is supported by a perforated plate having countersunk holes in rows with ribs between to avoid deformation of the band with associated feed problems. (Fig. 9, not shown). The feed mechanism may be varied to comprise sliding wedges, spring loaded plates and pivoting arms (Figs. 10 and 11, not shown). The filter band may be square mesh wire (e.g. woven) cloth of carbon steel or stainless steel, bronze, brass, copper, Monel (R.T.M.). or nickel or laminates of sintered stainless steel fibres. Particles down to 0À3 microns may be removed. The inlet and outlet filter band parts may be lined with Teflon (R.T.M.).
Patent GB-1333000-A (GB)
Title: High speed crosswinding machine
IPC: B65H59/38
Filed: 1971-08-13
Abstract: 1333000 Preventing package-end build-up BARMAG BARMER MASCHINENFABRIK AG 13 Aug 1971 [14 Aug 1970] 38157/71 Addition to 1269138 Heading D1J In traverse mechanism wherein a cam-driven reciprocating guide 1 is assisted in the reversal regions by a grooved drum 2, to allow gentle deceleration and acceleration of the guide 1 at these points, according to the parent Specification, excessive disparity between the reversal positions of the guide I and the drum 2 is avoided by arranging that the guide speed is increased before and/or after reversal. This is achieved by providing portions of steeper helix angle 22 on the cam adjacent the reversals than at the central constant-speed portion thereof.
Patent GB-1498995-A (GB)
Title: Method for separating and recovering hydroquinone
IPC: C07C37/72
Filed: 1975-09-17
Abstract: 1498995 Method of separating and recovering hydroquinone MITSUI PETROCHEMICAL INDUSTRIES Ltd 17 Sept 1975 [20 Sept 1974] 38223/75 Heading C2C In a method for separating and recovering hydroquinone which comprises distilling a byproduct - containing acid - cleavage product, which is obtained by acid-cleavage of an oxidation product of para-diisopropyl benzene in a solvent without the addition of water and in the absence of an azeotropic amount of water and in the presence of an aromatic hydrocarbon containing 9 or 10 carbon atoms added thereto, so as to remove low-boiling fractions including the solvent; bringing the resulting hydroquinone-containing distillation bottoms into contact with water under conditions which do not include the crystallization of hydroquinone in the distillation bottoms, and crystallizing and separating hydroquinone. Examples are given.
Patent GB-1530895-A (GB)
Title: Electrochemical reduction of 4-imidazole carboxylic acids
IPC: C25B3/25
Filed: 1974-09-02
Abstract: 1530895 4-(Hydroxymethyl)imidazoles by electrochemical reduction SMITH KLINE & FRENCH LABORATORIES Ltd 29 Oct 1975 [2 Sept 1974] 38259/74 Heading C2C A 4-(hydroxymethyl)imidazole of the general formula where R is hydrogen or a C 1-4  alkyl, is obtained by electrochemically reducing a 4-imidazolecarboxylic acid of formula in a protic solvent using a cathode which has a high hydrogen overvoltage and which is inert to the electrolyte.  The cathode is for example of lead or mercury. Aqueous solutions of strong acids (e.g. sulphuric, hydrochloric, hydrobromic, phosphoric, perchloric, trifluoroacetic and trichloroacetic acids) are suitable as solvents. The reduction is preferably carried out under conditions such that hydrogen is evolved at the cathode. In the product compounds exemplified, R is H (the picric acid adduct of the compound also being prepared), methyl (the HCl adduct also being prepared) and butyl. The compounds prepared are useful intermediates for the preparation of physiologically active compounds, in particular of hystamine H 2 - antagonists.
Patent GB-945388-A (GB)
Title: Improvements relating to hydraulic actuating systems for electric circuit-breakers
IPC: H01H33/34
Filed: 1960-11-09
Abstract: 945,388. Fluid actuation of switches; liquidbreak switches. J. L. GRATZMULLER. Nov. 9, 1960 [Nov. 13, 1959], No. 38454/60. Heading H2B. [Also in Divisions F1 and F2] A circuit-breaker actuating system comprises a single-acting spring-returned linear hydraulic actuator connected to the movable contact through a rack-and-pinion and a crank, and damping means operative on the actuator only during the final part of its stroke in each direction. The invention is shown applied to a circuit-breaker having a contact 1 co-operable with a fixed tulip contact 4 in an oil-filled insulator 7. The contact 1 is secured to a rod 10 connected by links 14, 15 to the crank 18 which is on the shaft of a pinion 20 co-operating with a rack 21 formed with a piston 22 which is biased to the open position by springs 28. The contact 1 is moved to the closed position shown by admitting liquid to the lower side of piston 22 through a ball valve 25. Towards the end of the movement of the piston, a dashpot piston 30 movable therewith enters a closely-fitting opening 32 and, because of closure of a one-way valve 37, damps the remainder of the stroke of piston 22. The contact is opened when the space below piston 22 is exhausted, the piston 30 entering a further closely-fitting opening 33 towards the end of the stroke and, because of closure of a one-way valve 38, damps the remainder of the stroke. A modified and elaborated dashpot is described (Fig. 8, not shown) (see Divisions F1, F2), as is an arrangement using two series-connected circuit-breakers suspended from a pylon, the breakers having independent actuators with common exhaust and feed lines (Figs. 9-11, not shown). Multiple assemblies of this series-arrangement are also described. An arrangement using two series-connected breakers with a common actuator is described (Figs. 12, 13, not shown).
Patent GB-930753-A (GB)
Title: Thermal insulation
IPC: E04C2/16
Filed: 1959-11-13
Abstract: A porous insulating material, used in a laminated thermal insulation (see Group VIII), comprises a particulate filler agglomerate consisting essentially of ultimate structural units with diameters less than 100 millimicrons and with the mean diameter of the average pore space between the smallest of the structural units about the same as the mean free path of the molecules comprising air at 150 DEG F. and atmospheric pressure, and a binder dispersed throughout the agglomerate in an amount sufficient to lend integrity thereto up to 35% by weight of porous insulating material.  The particulate filler may be a channel black, or an aerogel of, e.g., silica, chromic oxide, thoria, magnesium hydroxide, alumina or mixtures thereof.  The binder may be a glass or enamel fusing at low temperature, a phosphate, an alkali metal silicate, a phenol- or urea-formal-dehyde resin, polyvinyl chloride, a vinyl chloride/acetate copolymer or a silicone.  The porous material may also include staple fibres, e.g. asbestos fibres, mineral fibres, glass fibres or organic fibres, which may be of regenerated cellulose, cellulose acetate or polyacrylate.  The porous material may also include an opacifier, which may be metallic aluminium or silicon powder, carbon black or a finely divided pigment, e.g. iron oxide (Fe2O3) or chromium oxide (CrO or CrO2), zircon or titanium dioxide.  Specification 930,754 is referred to.
Patent GB-971623-A (GB)
Title: Improvements in or relating to cut-off mechanism for cigarette-making machines
Inventor: ROWLANDS TOM
IPC: A24C5/28
Filed: 1959-11-13
Abstract: 971,623. Cigarette-making machines. MOLINS MACHINE CO. Ltd. Nov. 11, 1960 [Nov. 13, 1959], No. 38593/59. Heading A2C. A cut-off for continuous cigarette or filter rod machines comprises a helical blade 22 rotating about the axis of a shaft 34 which is inclined to the rod CR, the blade being detachably mounted on a rotatable disc 21 so as to be adjustable in a plane parallel with the axis of shaft 34, which shaft is also adjustable about an axis perpendicular to and intersecting its own axis and perpendicular to the rod axis. The ledger 14 is carried by spring blades 15 and reciprocated so as to move approximately at the speed of the rod during cutting. The blade is carried by a disc 21 which is adjustably bolted to a disc 33 on the shaft 34 which is journalled in a semicylindrical member 37 slidable in a seat 39 and attached to an angularly adjustable circular plate 38 supported by a shaft 44, Fig. 3. To adjust the cut-off to produce cigarettes of slightly different length from the standard, the bolts 46, 48, which cooperate with arcuate slots in the members 47, 48 are loosened to allow slight angular adjustment of the axis of shaft 34 relative to the rod and then re-tightened. The blade fastening means 27, 28 is then loosened to permit the blade to pivot about bolt 27 until it is brought back to a position in which it acts at right angles to the rod CR. As these adjustments will have moved the wheel 57 out of mesh with its drive gear 56, the shaft 61 carrying the latter is mounted in an adjustable carrier 62 slidable on rods 71 to bring the gears back into mesh. The carrier 62 is adjusted by rotation of a threaded nut 76 threaded on a sleeve 67 attached to the carrier, the nut being rotated by a chain drive 78 from a hand wheel 81. The ledger 14 is reciprocated by an eccentric 19 the pin 92 of which moves at a speed slightly greater than the rod CR, the crank arm 18 being horizontal when the eccentric is at top dead centre. The angular extent of cut of the blade is 40 degrees and it is arranged to start cutting 20 degrees before top dead centre, the speed of the ledger being then equal to the rod speed. During the cut, the ledger accelerates slightly relative to the speed of the blade in the direction of the rod so that the blade enters at the front end of the ledger gap and leaves at the rear end. The angle of cut may be increased to 68 degrees, in which case the blade enters the ledger gap at the rear end, moves to the forward end of the gap during the first 14 degrees, due to the difference in speed, moves back over the gap during the next 40 degrees, and back to the front of the gap during the final 14 degrees.
Patent GB-1017763-A (GB)
Title: Well drilling pipe construction and the like
IPC: E21B17/00
Filed: 1962-10-12
Abstract: 1,017,763. Jointing. REYNOLDS METALS CO. Oct. 12, 1962 [Oct. 13, 1961], No. 38786/62. Heading B3V. [Also in Division F2] A coupling member 16 of steel is heated and screwed on to a pipe 12A of aluminium alloy, cooling water being fed by a hose 86 into the pipe and retained therein by a removable plug 84; water is also directed on to the joint formed by a spray head 88.
Patent GB-1116647-A (GB)
Title: A method of forming an annular laminated sealing element
IPC: F16J15/32
Filed: 1965-09-13
Abstract: 1,116,647. Seals. JOHNS-MANVILLE, CORPORATION. 13 Sept., 1965 [23 Oct., 1964], No. 38916/65. Addition to 1,080,175. Heading F2B. [Also in Division B5] A seal comprises an outer metal casing 12 and laminated annular sealing element 16 secured within the casing by a member 14. The sealing element consists of an annulus 18 of an inert synthetic resinous material having a low coefficient of friction, e.g. P.T.F.E. and an annulus 20 of an elastomeric material such as rubber. The inner edges of the annuli are bent over as in Fig. 5 by a hot coining operation and give an increased seal between the annuli and the member to be sealed.
Patent GB-1443816-A (GB)
Title: Methods and apparatus for feeding poultry and the like
IPC: A01K39/012
Filed: 1973-08-17
Abstract: 1443816 Feeding poultry CHORE-TIME EQUIPMENT INC 17 Aug 1973 [25 Aug 1972] 38930/73 Heading A1M [Also in Divisions F2 and G1] A poultry feeding installation comprises a pair of feed receiving hoppers 27, 29, each hopper being partially supported from a balance beam 45 and partly from a fixed support 39 by cables 48, 49. The beam is counterbalanced by an adjustable spring 53 so that at a predetermined weight indicated on scale 62, an extension 55 of the beam abuts a contact 60. In use, a time clock 22 actuates a flexible auger conveyor 23 to deliver feed from a store hopper 21 to hopper 27. When extension 55 touches contact 60 valve 24 is closed so that feed is then delivered to hopper 29. When extension 55 associated with hopper 29 touches contact 60 the conveyor 23 is switched off. At a preset time, the time switch 22 actuates conveyors 33 to fill chicken feed dispensers 35. A level control 36 associated with each feed dispenser 35 controls conveyor 33 to operate intermittently to maintain the dispensers 35 full until the level in the hoppers falls to a preset level when the conveyors 33 are switched off. The valve 24 (Figure 5) comprises a butterfly plate 71 arranged to be moved to the open position when solenoid 77 is activated but to be moved to the closed position by the weight of the solenoid core 15 when the solenoid is deactivated. There may be more than two hoppers.
Patent GB-1340662-A (GB)
Title: High voltage amplifier
IPC: H03F3/30
Filed: 1972-08-22
Abstract: 1340662 Converting UNITED AIRCRAFT CORP 22 Aug 1972 [29 Dec 1971] 39109/72 Heading H2E [Also in Divisions H3-H4] A high voltage amplifier comprises two variable voltage sources 10, 12 in series, said sources 10, 12 being differentially variable in response to an imput signal, a load 20 connected across one and a device 18 across the series to maintain thereacross a voltage equal to the maximum amplifier output voltage. The voltage sources may be rectifiers fed from step-up transformers supplied from an input signal controlled chopper or a signal controlled A.C. supply. When the input signal at 30 is at one extreme (30 volts), the output of source 12 is zero and source 10 feeds 6 kV to the load. At the other extreme the output of source 10 is zero and of source 12, 6 kV. This is offset by the supply 18 so that the load voltage is zero. The circuit thus avoids the use of high voltage active output devices and provides drive to the load in both positive going and negative going directions. The voltage maintaining device 18 may be a capacitor or a Zener diode. Negative feedback may also be provided (Fig. 6, not shown). The amplifier may be used to supply the high voltage to the multiple phosphor layer screen of a variable colour penetration cathode-ray tube of the type in which different colours are produced by varying the velocity of the beam. For this purpose a further 5 kV supply may be connected in series with 10 so that the output varies between 5 and 11 kV.
Patent GB-1019993-A (GB)
Title: Improvements in or relating to fluid flow responsive means
Inventor: DUMPLETON OWEN WALTER
IPC: G01F1/24
Filed: 1961-11-01
Abstract: 1,019,993. Indicating fluid flow. BABCOCK & WILCOX Ltd. Oct. 31, 1962 [Nov. 1, 1961], No. 39146/61. Heading G1R. Means responsive to fluid flow comprises an armature in the form of a cylindrical plunger 17 movable in a tube 1 so that fluid flowing past it establishes a differential pressure across it and it tends to move from a first-position as in the figure to a second position, against the electromagnetic force exerted by a winding 19 which decreases as the plunger moves away, the plunger moving back to its first position when the fluid flow is reduced. The first and second positions are defined by buffers 16 and 14, adjustable at 12 and 11 respectively. Alternatively to a clearance around the armature for the passage foil, longitudinal slots may be cut in its sides. The winding 19 is inside a magnetic casing 23 which has poles as at 25 at either end and is supplied with an alternating current dependent on the flow conditions required. The change of position of the armature, if not visible may be detected electrically by including a resistor in the winding 19 to give a signal across it which will depend on the position of the armature.
Patent GB-942987-A (GB)
Title: Improvements in or relating to wear cap for excavating tooth
Inventor: HILL GEORGE WILLIAM
IPC: E02F9/28
Filed: 1962-10-17
Abstract: 942,987. Digger teeth for excavators. ESCO CORPORATION. Oct. 17, 1962, No. 39223/62. Heading E1F. On the underside of a rectangular, as view from above, wear cap 12 of an excavator tooth adapter is formed a torgue 27 of trapezoidal shape transverse of the length of the torgue, which engages in to abut against the rear end of a complementarily shaped recess in the upper surface of the adapter 11.
Patent GB-1432813-A (GB)
Title: Production of stereotype mats and blanket for use in the process
IPC: B41C3/02
Filed: 1973-08-20
Abstract: 1432813 Blanket used in stereotype production W R GRACE & Co 20 Aug 1973 [25 Aug 1972] 39334/73 Heading B6C [Also in Division B5] A stereotype-moulding blanket comprises a compressible impregnated felt laminated on at least one face to a textile fabric of extensible fibre, the felt being 0À015 to 0À040 inches thick and having a firmness such that a pressure of at least 10 psi must be applied to effect an initial compression of 2 mils and having a residual porosity of at least 37 % after 4 mils compression. The felt may be impregnated with a vulcanized natural rubber latex, may be air- or water-laid and is of wood, cotton, rayon, nylon or acrylonitrile-vinyl chloride copolymer fibres, but particularly comprises 70% mercerized cotton linters and 30% short paper-making fibres. It may contain 60-140% by weight of the impregnant. The textile may be a square- or plain-woven nylon fabric weighing 0À9-8À3% oz./sq. yd. and may be bonded to one or both faces of the felt by means of a butadieneacrylonitrile adhesive together with pressing under heat. In a method of moulding a stereotype mat, a flong is pressed against a raised image such as set type, to form a matrix impression of the image, by means of a blanket as above, the textile lamination of the blanket facing the flong.