baber/WOPTO huggingface dataset:
Patent GB-1057008-A (GB)
Title: Apparatus for controlling the movement of strip materials
Inventor: WARD GEORGE WILLIAM
IPC: B21D43/11
Filed: 1964-09-07
Abstract: 1,057,008. Metal sheet feeds. STANDARD TELEPHONES & CABLES Ltd. Sept. 3, 1965 [Sept. 7, 1964], No. 36581/64. Heading B3W. [Also in Division B6] A feed roller for metal strip comprises a hub 13, faced with rubber 14, fixed to a spindle 15 which is supported in bearings 16, carried by bearing blocks 17. The blocks are mounted for vertical movement in slots 18 in the walls 19 of a frame. Also mounted on the spindle 15 is the rotating member of a roller-type clutch. The outer member 21 of the clutch is attached to a spigot 23 which engages an externally threaded sleeve 24 by which the vertical position of the spindle is adjusted. In the embodiment described the roller is used to prevent retrograde movement of a strip 11 of ferromagnetic material which has a thin coating of magnesium oxide. The roller may also be used as a driving roller.
Patent GB-831658-A (GB)
Title: Mobile mixers of the type carrying spray or other delivery means for concrete or the like
IPC: E04F21/12
Filed: 1956-11-30
Abstract: 831,658. Concrete supplying apparatus. TRUE, M. M. Nov. 30, 1956 [Jan. 12, 1956], No. 36695/56. Class 20(2) [Also in Groups II and XXVIII] Concrete spraying and mixing apparatus comprises a tank having two compartments in which concrete is mixed and a two position changeover valve to connect the compartments alternately to a flexible conduit and a nozzle, compressed air being supplied to the top and bottom of the discharging compartment to discharge the concrete and assist the flow respectively while a concrete mix is being prepared in the other compartment. Compressed air is supplied through a metering valve to a proportioning valve which proportions air between the top and bottom of the discharging compartment. The water supply pipe is connected to the compressed air piping through a non-return valve which is normally held closed by the compressed air until this is turned off when water is supplied to the compartment which is not discharging through the compressed air pipes and cement &c. is fed into a sealable opening in the top of this compartment. The metering valve 47 is controlled by a pressure chamber charged by the compressed air supply under control of a charging valve 50 and a bleed valve 36 which may be at the spraying nozzle. Small charges of concrete are discharged to the nozzle separated by pockets of air due to the action of the mixing paddles passing over the concrete outlet, disturbing the mixture and causing a series of small quantities of air to flow through the sump which is provided at the bottom of each compartment and to which the compressed air pipe is connected.
Patent GB-423392-A (GB)
Title: Improvements in or relating to means for delivering measured quantities of liquid
IPC: G01F11/38
Filed: 1933-12-30
Abstract: 423,392. Delivering measured quantities of liquids. COOPER, A. J., 23, Farringdon Road, London. Dec. 30, 1933, No. 36723. [Class 106 (v)] Apparatus for delivering measured quantities of liquids comprises a tubular body 1 having an inlet 2, a sleeve 7 adapted to slide within the body and having substantially oppositely arranged inlet and outlet ports 11, 12 and a rotatable handle member 17 to permit the withdrawal of the sleeve so as to expose the inlet and outlet ports and permit the delivery of the measured quantity contained within the sleeve. The body 1 is provided with an ebonite liner 6 and is closed at one end by a rubber disc 27 and a screwed cap 5. The sleeve is of ebonite and is carried by a member 8 formed with a flange 9 adapted in its inner position to close the other end of the body. When the sleeve is pushed in, the device fills with liquid, air escaping through the inlet 2 into the liquid container such as a bottle and thereby agitating the contents. When the sleeve is withdrawn by the handle so that both ports 11 and 12 are exposed, the contents of the device are discharged through the port 12, air entering through the port 11. The spindle 13 of the handle 17 is formed with a rectangular enlargement 18 adapted in one position of the handle to correspond with a similarly shaped longitudinal passage in a member 20 carried from the body 1 by a bracket 14, thus allowing the longitudinal movement of the sleeve, the enlargement 18 moving within the passage. When in the inner position, the sleeve may be locked by turning the handle. Stops 23 and 24 carried by a cap 22 on the member 20 limit the rotation of the handle. Projections 25 on the flange 9 engage the arms of the bracket 14 to prevent the rotation of the sleeve. The device may be made of stainless steel or other non-corrosive material. The capacity of the measuring chamber may be adjusted by the insertion of sleeves or by discs positioned against the member 8.
Patent GB-1586504-A (GB)
Title: D-homosteroids
IPC: A61P29/00
Filed: 1977-09-02
Abstract: Anti-inflammatory D-homosteroids of the formula <IMAGE> in which the dotted 1,2 bond denotes an optional C-C bond; R<6> denotes hydrogen, fluorine, chlorine or methyl; R<9> denotes hydrogen, fluorine or chlorine and R<17a> denotes hydroxyl or acyloxy, where R<9> is to be fluorine or chlorine if R<6> is hydrogen in a 17 alpha -hydroxy compound or R<6> is fluorine in a singly unsaturated 17a-hydroxy compound, are prepared by treating a corresponding 21-iodo-D-homosteroid with a reducing agent. A singly unsaturated D-homosteroid of the formula I can then be dehydrogenated to the doubly unsaturated D-homosteroid of the formula I, a 6-unsubstituted D-homosteroid of the formula I can be fluorinated or chlorinated in position 6, and a 17a alpha -hydroxy-D-homosteroid of the formula I can be acylated in position 17a alpha .
Patent GB-983109-A (GB)
Title: An improved oil-pneumatic suspension device
IPC: B60G17/048
Filed: 1961-10-13
Abstract: 983,109. Hydro-pneumatic springs; levelling. SOC. D'APPLICATIONS DES MACHINES MOTRICES. Oct. 13, 1961 [Nov. 24, 1960], No. 36858/61. Heading F2S. In an oleo-pneumatic vehicle suspension and levelling device in which a plunger 2 works in an hydraulic cylinder space 5 leading through oppositely-acting one-way valves 9, 10, to a chamber 6 containing a gas-filled vessel 7 the mean half-way position of the plunger 2, about which oscillations due, e.g. to the state of the road take place, is maintained substantially constant by means of a source of hydraulic pressure which is introduced into the device at 14. In the half-way position the plunger 2 blocks off a valved duct 16 which communicates with the pressure source 14 as well as a pressure-relief duct 17 which is connected to a low-pressure tank, not shown. Deviation inwardly or outwardly of the plunger 2 from its half-way position causes an annular groove 11 in the periphery of the plunger to uncover respectively the duct 16 or 17 so that the space 5 is either placed in communication with the pressure source 14 or the pressure relief duct 17 by way of a duct 12, which extends between the groove 11 and the space 5, to fill or empty the space 5 until the plunger 2 again assumes the neutral position shown. A constriction 13 in the duct 12 is sufficiently small to have no effect on oscillations due to the state of the road. A bellows 19 recovers oil leakages which can return to the tank by way of a duct 20. The pressure source may be a vehicle pump. The vessel 7 can be replaced, e.g. by a closed cellular body or by a space variable by means of a floating piston.
Patent GB-636188-A (GB)
Title: Improvements in or relating to purified antibiotics and process of obtaining the same
Filed: 1946-12-16
Abstract: Water-soluble salts of streptomycin and streptothricin are purified by treating a dilute solution of the antibiotic in methanol or ethanol at pH 3-8.5 with a small percentage of activated carbon (i.e. 0.5-3.0 gm. of activated carbon per 100 ml. of solution), and removing the carbon and adding to the carbon-treated solution a volatile oxygen-containing organic liquid which is a non-solvent for the antibiotic and is miscible with the solution, e.g. an ether or ketone having not more than 4 carbon atoms in the molecule such as ethyl ether, acetone or dioxane.  The pH of the alcoholic solution should be in the range 3-7, preferably 6-7, but some degree of purification may be attained at pH 8-8.5, preferably the solution has a potency of approximately 50-300 units/ml. and is most suitably 100-200 units/ml., and the solvent should have a low-water content, e.g. less than 10 per cent and preferably less than 3 per cent. Where ethyl ether is used as the precipitating liquid, 2-3 volumes suffice but where acetone is used 10-15 volumes are necessary. In examples: (1) and (2) streptomycin hydrochloride in methanol is purified by treatment with carbon and precipitated by addition of acetone; (3) streptothricin hydrochloride is purified by the method of (1); (4) a weakly alkaline solution of streptomycin hydrochloride is purified as in (1); and (5) streptomycin hydrochloride in methanol prepared by adsorption of streptomycin on to charcoal from the culture broth and subsequent elution with methanolic hydrogen chloride is purified as in (1).
Patent GB-901687-A (GB)
Title: Improvements in and relating to the bleaching of fibre material
IPC: D06L4/12
Filed: 1958-11-18
Abstract: Aqueous solutions of monoperacetic acid suitable for use in the bleaching of fibrous materials are prepared by reacting hydrogen peroxide with acetic acid in the presence of ammonia or a primary, secondary or tertiary organic nitrogenous base, e.g. monoethanolamine, triethanolamine or pyridine, at a pH value of less than 6.  At least 65% of the hydrogen peroxide used may be reacted to form peracetic acid.  Phosphates, e.g. sodium pyrophosphate, may be added to adjust or buffer the optimum pH value in the solution. Specification 561,180 is referred to.ALSO:Fibrous materials, e.g. cotton, linen, acetate rayon, regenerated cellulose, cellulose pulp and polyamide, polyester and polyacrylonitrile fibres, are bleached by treating them with an aqueous solution of monoperacetic acid prepared by reacting hydrogen peroxide with acetic anhydride in the presence of ammonia or a primary, secondary or tertiary organic nitrogenous base, e.g. monoethanolamine, triethanolamine and pyridine, at a pH value of less than 6.  Solutions in which at least 65% of the hydrogen peroxide used is reacted to form peracetic acid are preferably used.  Phosphates, e.g. sodium pyrophosphate, may be added to the solutions to avoid undesirable catalytic effects and contamination of the material to be bleached or of the process water with iron, manganese and copper and to adjust or buffer the optimum pH value in the solution.  Bleaching is preferably effected at 60 DEG -90 DEG C. in closed vessels.  The material to be bleached may be precleaned or desized prior to bleaching and may be subjected to a pretreatment with strong caustic alkali.  Before or after bleaching with the monoperacetic acid solution the fibrous materials may be given a weak treatment with other bleaching agents, e.g. sodium hypochlorite.  Materials which have been dyed with vat or naphthol dyestuffs may be bleached without causing changes in the hue or fastness of the dyestuffs. Specification 561,180 is referred to.
Patent GB-1161397-A (GB)
Title: Improvements in Electrochemical Cells
Inventor: CLIFTON JOHN STEPHEN
IPC: G01N27/49
Filed: 1966-08-18
Abstract: 1,161,397. Measuring oxygen content electrochemically. NATIONAL RESEARCH DEVELOPMENT CORP. Sept. 18, 1967 [Aug. 18, 1966], No.37139/66. Heading G1N. Apparatus for continuously measuring the dissolved oxygen content of a stream of fluid comprises a central stainless steel tubular duct 6 through which the fluid-flows having a perforated section surrounded by an electro-chemical cell comprising an oxygen-permeable membrane 5 which is impermeable to liquid or dissolved ions, in contact with a perforated silver, gold or platinum cathode 7 whereon oxygen entering through the membrane reacts to produce hydroxyl ions which are consumed in the total cell reaction to cause a current to flow in an external circuit proportional to the concentration of oxygen in the fluid in the duct 6. Surrounding the cathode 7 is an anode 10 made from a strip of lead foil sandwiched between two layers of plastics material or nylon mesh and formed into a roll. Radial holes are drilled through the anode. The cell electrolyte may be a saturated aqueous solution of potassium hydrogen phosphate, dilute sulphuric acid or a dispersion of potassium hydrogen phosphate in Agar-Agar jelly. The membrane 5 may be À002" thick and made of polythene or À005" thick and made of P.T.F.E. The cell casing 1 is made of polymethylmethacrylate and the joints are sealed with wax enabling the joints to be broken for cleaning the cell.
Patent GB-951439-A (GB)
Title: Improvements in cleaning devices for gas filtering apparatus
IPC: B01D46/04
Filed: 1959-11-02
Abstract: 951,439. Air filters. H. A. EDWARDS. June 27, 1960 [Nov. 2, 1959], No. 37153/59. Heading B1T. Reverse flow cleaning of an inward flow filter bag 2, Fig. 1, having its upper open end secured round an aperture in a support plate 3 is effected by a jet of compressed air issuing through a nozzle 11 the supply pipe 9 of which is connected to means actuated by the feed compressed air to close the bag mouth during a cleaning period. As shown, said means comprises an inflatable bladder 10 which seals a sleeve 6 banding the bag mouth. In a modification the air supply pipe 9 has a side orifice 17 whereby a bellows plate 13 slidably mounted on the pipe 9 is moved to the bagclosing position. In a further modification the bag mouth is closed by a plate actuated by a compressed air operated piston.
Patent GB-1446427-A (GB)
Title: Pulse generating apparatus
IPC: H03K5/15
Filed: 1972-08-10
Abstract: 1446427 Clock pulse distribution circuit AUTOPACK Ltd 5 Nov 1973 [10 Aug 1972] 37307/72 Heading H3P [Also in Division G3] Pulse generating apparatus comprises a clock pulse generator, a clock pulse distributer feeding distribution lines, each of which includes a differentiator, and means for connecting at least any two distribution lines to an output stage through an output line. As shown, a clock pulse generator 10, settable to either of two rates, is connected to a pulse distributer 11 providing sequential pulses on lines 12. Each line includes a differentiator 12, 13 and is selectively connectible through a plug board 15 to output lines 16, each of which is connected to an output stage 17 including a latch and a power switching transistor, which is arranged to switch an electrical actuator. In operation square wave clock pulses are distributed sequentially and differentiated to provide positive and negative-going spikes which determine, by the conduction direction of diode plugs, the operation of the latch in each output stage. The output stage can select the clock pulse rate or stop the clock and hence the sequence until receipt of an external pulse. A rechargeable battery is provided in the power supply 18. When the battery is out of circuit reset logic selects the first distributer line 12 and resets the output stages.
Patent GB-1509946-A (GB)
Title: Method of electroless metal-plating
IPC: G03C5/58
Filed: 1975-09-11
Abstract: 1509946 Electroless plating AMP Inc 11 Sept 1975 [23 Sept 1974] 37339/75 Heading C7F A non-conductive substrate, e.g. polyimide, p.t.f.e. polyethylene terephthalate, polyarylsulphones, polysulphones, polyparabanic acid, polyimide-amine, polyphenylene sulphide, silicon polymers or glass, is electroless plated in the form of a pattern by applying a solution comprising a chelating agent e.g. e.d.t.a. or orthophonanthroline, a dye, and stannous chloride, such that it absorbs light of a wavelength between 3750 and 8000 , exposing the solution to light of such a wavelength through a mask to make the exposed area unable to reduce palladium chloride, applying a coating of palladium chloride, and then electroless plating with e.g. Cu, Co, Du or Ni. Polyimide substrates may be pre-treated with caustic soda, fluorocarbons or a solution of Na in naphtha, and glass coated with epoxy resin.
Patent GB-1422370-A (GB)
Title: Adhesives for bonding polyolefin surfaces to metal surfaces
IPC: B32B15/04
Filed: 1973-08-07
Abstract: 1422370 Laminating metals to polyolefins WACKER-CHEMIE GmbH 7 Aug 1973 [8 Aug 1972] 37342/73 Heading B5N [Also in Division C3] Polyolefins such as high- or low-pressure polyethylene, polypropylene or a polybutene may be laminated to metals such as Al, Fe, Cu, Zn, Sn, Pb or an alloy of two or more thereof by coating the surfaces to be joined with an aqueous adhesive which is an aqueous dispersion comprising (i) an ethylene/vinyl acetate copolymer containing 40-85 wt. per cent vinyl acetate units and having a Mooney Viscosity (ML-4) of 8-40 (ii) 1-10 wt. per cent relative to (i) of a 1,2-polybutadiene of mol. wt. 500-10,000 and (iii) from 0À5-5 wt. per cent relative to (i) of a peroxide for curing the polybutadiene, drying the coating and then laminating under heat and pressure to cure the polybutadiene. In the examples aluminium foils are laminated to polyethylene sheets 2 mm. thick and in one example the aluminium is first primed with a solution of a vinyl acetate/vinyl laurate copolymer, before coating with the adhesive composition. The peroxide used in the examples is 1,1 - bis - t - butylperoxy - 3,3,5 - trimethoxycyclohexane.
Patent GB-1256150-A (GB)
Title: Improvements relating to universal joints
IPC: F16D3/84
Filed: 1969-07-25
Abstract: 1,256,150. Universal joints. NETZSCH MASCHINENFABRIK GEB. 25 July, 1969 [25 July, 1968], No. 37585/69. Heading F2U. A universal joint for incorporation in a screw pump comprises part-spherical heads 8, 10 connected by a cross-pin member 15, 16 and is sealed by a hose, each end of which is mounted on an annular surface provided behind the partspherical surface of the associated joint head. A single hose may be used, Fig. 2 (not shown), but preferably two are employed, an inner one 17 for preventing escape of lubricant and an outer one 18 for preventing entry of the pumped medium. The ends of the hoses are formed with inwardly projecting annular beads 19, 21 clamped against intermediate collars 20 by screw-threaded retaining rings 21.
Patent GB-1199091-A (GB)
Title: Automatic Telecommunication Exchange
IPC: H04Q3/545
Filed: 1968-08-07
Abstract: 1,199,091. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 7 Aug., 1968 [16 Aug., 1967], No. 37635/68. Heading H4K. In an exchange having a switching network through which paths are selected with the aid of a memory map, the contents of the latter are updated as soon as a path has been selected for operation or release and thereafter the new contents are confirmed when the path is actually set-up or released. In the embodiment the switching network consists of a three-stage finder/connector section, a three-stage local group selector section and a two-stage incoming/ outgoing group selector section, each of which sections is of the star type, i.e. it has only one path therethrough between a specified inlet and a specified outlet and has an individual ferrite core memory map associated therewith. An additional memory per section is provided for containing a record of the busy links in its section, these links being denoted by the addresses of the inlet and outlet of the path incorporating them. (If more than one path is available, i.e. the sections are not of star type, then the addresses are supplemented by a path number). A further memory may be associated with any section for error detecting/correcting purposes. This memory is updated from the contents of the additional memory making due allowance for calls being set-up and released during the updating. As the address data is inserted into the further memory a special bit is written back with the address data into the additional memory so that a false re-reading of this data cannot occur. When all the data is recorded in the further memory it is compared with the data in the section's memory map and a fault signal is generated if there is any discrepancy. The roles of the two memories may then be exchanged, the contents of the original memory map being erased whereafter this memory is then used as a further memory for checking the contents of another section's memory map.
Patent GB-1293448-A (GB)
Title: Improvements in tyre structures incorporating anti-skidding devices
IPC: B60C27/02
Filed: 1970-08-04
Abstract: 1293448 Tyre anti-skid devices DETWILER CORP 4 Aug 1970 [6 Aug 1969 20 July 1970] 37657/70 Heading B7C A tyre structure comprises a tyre 21 with a plurality of transverse grooves 24 in its tread and a deformable anti-skid device 25 which comprises a flexible anchor member 26 and a number of elements 28 attached to the anchor member and each lying in a respective groove 24 with a portion projecting radially outwards of the outer tread surface, so that in use when the tyre is in rolling engagement with the ground, each element remains in its groove except for its said projecting portion but when the tyre skids the said portion engages the ground and drags the element at least partially from its groove to increase traction, the element returning into its groove after having passed from contact with the ground. As shown the anchor members 26 comprise steel cables or chains positioned one on each side wall by means of a releasable fastener 27 and the elements 28 are of steel cable each fastened at its ends to the anchor members by a fastener 29, and carrying a number of dish shaped discs 31 with notched edges, two fixed end stops 34 and three separators 37, 38, 39, rotatably mounted. The central port of each groove has a protrusion 42 on which rests the separator 38 to form the projecting portion of the element. As an alternative, one anchor member may be and one end of each element is fastened directly to the tyre. The protrusion 42 may have perforations (50) to decrease its rigidity, and the grooves 24 may be bevelled where they meet the outer tread surface while the axially outer ends may comprise a bore (31) in the tread, have a clip 48 or a narrow opening (49) in order to retain a portion of the element 28 within the groove during a skid. Counterweights (40) may be provided on the or each member 26 to compensate against centrifugal force acting on the elements 28 during rotation of the wheel. In other embodiments, (Figs. 25-29, not shown) the anchor members are held in circumferentially extending grooves formed in the tyre tread, with the elements extending either perpendicularly to the anchor members or in various inclined layouts thereto, while in one arrangement one anchor member is in the tread and another in the sidewall so that the elements extend over only one axial side of the tread. In the embodiment of Fig. 18, each element 67 is connected at its ends to anchor members 66 by a connector 68 comprising two pivotally connected members, which reduces wear which occurs where a cable, as used in Fig. 1 embodiment, is bent at the shoulder region. An antiskid actuator 70 having a bell-shaped profile is located in a notch 71 in the tread, rotatably mounted on each element 67.