baber/WOPTO huggingface dataset:
Patent GB-1032742-A (GB)
Title: Improvements in or relating to gas filters
Inventor: FLOYD FREDERICK
IPC: B01D46/52
Filed: 1961-10-12
Abstract: Spacing of adjacent parallel reaches of folded filter material e.g., paper is effected by plates 17 Fig. 3 (not shown) of impervious material having corrugations extending at an angle of less than 90 degrees to the folded edges of the pleats and the corrugations of adjacent plates 17 extend in opposite senses whereby a lattice of pressure points 28 Fig. 6 (not shown) are provided on each reach ? material as shown.
Patent GB-1385879-A (GB)
Title: Thread rolling means
IPC: B21H3/04
Filed: 1971-08-05
Abstract: 1385879 Thread rolling ALFORD & ALDER (ENGS) Ltd 2 Aug 1972 [5 Aug 1971] 36736/71 Heading B3M A thread rolling attachment supports a thread rolling die 21 on a transfer machine 12, the die being driven by a shaft 24a of the machine and being movable axially relative to a fixed workpiece 40. The die is supported on a carrier 19 which is slidable on the ends of four pedestals 13, 16 attached to the machine. The die is biased towards the right by springs 31 which act between a fixed yoke 17 and rods 30 coupled to a flange 29 (which is connected to the die). In operation, the whole assembly is moved to the left until the rolls of the die engage the workpiece. The assembly is then halted, and the rolls thread themselves on to the workpiece and draw the die to the left until a stop 37 is engaged by the workpiece. This causes the rolls to release the workpiece, thereby allowing the springs 31 to draw the die to the right. Compressed air is supplied to pistons in two of the pedestals to cushion the movement of the die.
Patent GB-335123-A (GB)
Title: Improvements in and relating to paper folding machines
IPC: B65H5/38
Filed: 1929-12-02
Abstract: 335,123. Brehmer, Geb., and Kleinschmidt, O. Dec. 2, 1929. Sheet-registering devices; dropping-roller feeds. -In a machine for folding paper of the kind employing buckling plates k and rollers i, j, the sheets are fed from a fanned-out stack a by means of rising and falling combing rollers e and by drop rollers f coacting with rollers f<1>. To register the sheets laterally the sides of the stack a are acted on by laterally adjustable guides d, d' one or both of which may be reciprocated laterally so as to be moved out of contact with the sheets as the roller f advances the foremost sheet of the stack. The guides d, d<1> are adjustably secured to rods l, m, n which are adapted to slide in grooves o in the feed table b, and the central rod m is connected to a lever u which is oscillated by a cam x. Motion may be transmitted from the rod m to the rod m<1> by means of lever-and-link mechanism s, t, s<1>, t<1> when it is desired to reciprocate both guides d, d<1>.
Patent GB-1103919-A (GB)
Title: Improvements relating to engine control apparatus
IPC: F01P11/16
Filed: 1965-08-27
Abstract: 1,103,919. Engine stop gear. P.K. SAUNDERS and C.D.B. WILLIAMS. Aug. 27, 1965, No. 36889/65. Heading F1K. Engine control apparatus comprises a device arranged to be actuated by engine oil pressure and responsive to an undue fall in such engine oil actuating pressure to stop the engine, the engine oil pressure actuating the stopping device by way of valve means 53 which is controlled by sensing means 41 automatically to cut-off the engine oil actuating pressure to the stopping device upon sensing a malfunction of the engine. As shown the sensing means comprises a float unit 41 in the fuel supply of a fuel injection engine upstream of the injector pump and so arranged as to operate the valve means to stop the engine prior to the fuel supply being exhausted to prevent air entering the fuel injection system. The sensing means may comprise or further comprise a temperature sensitive unit (not shown) arranged to operate the valve means to stop the engine upon sensing an unduly high engine temperature e.g. of the cylinder head or block or of an engine coolant or the engine oil. Piston or diaphragm means may actuate a first trigger to lock or release an engine control member. A second trigger is spring urged to lock the control member in engine running position upon resetting the same for starting or restarting the engine. Upon actuation of the first trigger due to engine oil actuating pressure upon starting the engine, the first trigger operates to disengage the second trigger from the control member and simultaneously re-engages the control member to hold the same locked in the engine running position.
Patent GB-344492-A (GB)
Title: Improvements in or relating to processes of recovering metals from metalliferous materials, as from ores
IPC: C22B1/08
Filed: 1929-12-03
Abstract: In a process for treating metalliferous materials such as ores for the recovery of metals, the ore &c. in a finely divided condition is treated with liquid to such an extent only as to render it damp or quasi-wet and so as not to interfere with free gas passage between the particles, and is then treated with a gaseous reagent while being agitated, the metal values being subsequently extracted from the treated material.  Additional liquid is added during the treatment to maintain the quasi-wet condition, and the liquid and gas may be supplied alternately. The gases used may be sulphur dioxide, or air, or both of these used alternately, or chlorine, and the liquid may be water or cyanide or other solutions.  In some cases steam may be used to supply or maintain the liquid.  The treatment is generally carried out below about 250 DEG  F.  In examples, a sulphide ore containing gold, silver, lead, and zinc, after treatment if desired with sulphuric acid to remove part of the zinc may be treated according to the process with water and a mixture of air and sulphur dioxide for the formation of zinc sulphate; a tailing containing copper and cobalt may be treated with water, air, and sulphur dioxide, or air and chlorine.  The process is particularly applicable to manganese silicate ores and to nickel and cobalt ores.ALSO:In a process for treating metalliferous materials such as ores for the recovery of metals, the ore &c. in a finely divided condition is treated with liquid to such an extent only as to render it damp or quasi-wet and so as not to interfere with free gas passage between the particles, and is then treated with a gaseous reagent while being agitated, the metal values being subsequently extracted from the treated material. Additional liquid is added during the treatment to maintain the quasi-wet condition, and the liquid and gas may be supplied alternately. The gases used may be sulphur dioxide, air, or both of these used alternately, or chlorine, and the liquid may be water or cyanide or other solution.  In some cases steam may be used to supply or maintain the liquid.  The treatment is generally carried out below about 250 DEG  F.  In examples, a sulphide ore containing gold, silver, lead, and zinc, after treatment with sulphuric acid to remove part of the zinc, may be treated according to the process with water and a mixture of air and sulphur dioxide for the formation of zinc sulphate; or the roasted ore may be treated directly without first digesting with sulphuric acid; a tailing containing copper and cobalt may be treated with water, air, and sulphur dioxide, or with air and chlorine.  The process is particularly applicable to manganese silicate ores, and to nickel and cobalt ores.
Patent GB-1526844-A (GB)
Title: Grain pearling machine
IPC: B02B3/04
Filed: 1976-09-07
Abstract: 1526844 Grain pearling apparatus IONY KK 7 Sept 1976 [10 Sept 1975] 37095/76 Heading A2Q  A grain pearling machine, particularly for rice pearling, comprises a vertical pearling chamber 8, a driving shaft 1, coaxial with the chamber 8, fitted with a rotor 3, the chamber being provided with wall screens 4 which discharge bran, the wall screens being spaced from the rotor at a predetermined distance, an upper inlet 5 for supply of grain into the chamber and an outlet 6 immediately below the bottom of the shaft 1, the outlet being closed or partially closed by the obstruction 7 which may be vertically moved up or down according to the amount of grain contained in the chamber. The rotor 3 may be generally cylindrical and have a spiral projection to assist the pearling operation when grain is introduced into the chamber. The rotor 3 may also be in the form of an inverted truncated cone having a diameter which increases upwardly. The machine may have two pearling chambers, one vertically above the other, the upper chamber having a conical rotor and the lower a cylindrical rotor.
Patent GB-812288-A (GB)
Title: Improvements in pressure discharge can
IPC: F17C9/00
Filed: 1955-12-28
Abstract: 812,288. Dispensing liquid by fluid pressure. MICALLEF, L. A. Dec. 28, 1955 [Dec. 31, 1954], No. 37113/55. Class 102(2). A dispensing container wherein the contents are dispensed by fluid pressure comprises a top cap portion 2 having an upstanding neck portion 13. A plug 4, extending downwards into the container, has a central bore 5, in which is mounted a discharge valve 6 seating on a countersunk cavity 7, and has a flexible bag 3 permanently attached to its lower end. A spring 8 for holding the valve 6 in its closed position abuts against a rubber washer 10 which in turn abuts against the shoulder 11 on the valve stem. The figure shows the parts in the position for charging the apparatus. The liquid to be dispensed is charged into the flexible bag 3 through the valve stem 6 in the conventional manner. A supply of air under pressure is applied to the neck of the container and passes through the holes 19 and follows the direction of the arrows through grooves in the plug 4, past a rubber washer 17 fixed to the plug to the space in the container outside the flexible bag. When the charging pressure is cut off the pressure in the can acts on the washer 17 and moves the plug 4 upwards, in the collar 12, allowing the split ring 14 to contract under the plug 4 thereby locking the plug against the edge of the washer 10 which seals the holes 19. The flexible bag 3 may subsequently be refilled through the valve stem 6 in the normal manner. A cap having a spray nozzle may be fitted on the top of the valve stem 6 and discharge of the liquid in the flexible bag is achieved by depressing the valve stem 6. In a modification the plug 4 and collar 12 is formed as a single member held by crimping the neck after the can has been charged with fluid. In this case the washer 17 is omitted. Reference has been directed by the Comptroller to Specification 740,635.
Patent GB-893377-A (GB)
Title: Improvements in or relating to the manufacture of articles from powdered materials
Inventor: CLOW COLIN GEORGE
IPC: B30B11/00
Filed: 1959-11-02
Abstract: An article such as a turbine blade or a screw-threaded bolt is produced by compacting powdered material by hydrostatic pressure in a mould constructed of material, for example paraffin wax or polyvinyl chloride, which is neither rigid or elastic but which yields under pressure and is of low resilience.  In one example turbine blades are manufactured from a nickel based alloy powder in a wax mould having walls one-eighth of an inch thick which is placed in a rubber bag and immersed in pressurised glycerine. The wax is crushed but retains its internal shape and is easily removed from the pressing which is later sintered.  Articles having reentrant parts are readily formed according to the invention which is stated to find application in the pressing of metal powders and their oxides, e.g. ferrites.
Patent GB-1125219-A (GB)
Title: Improvements in and relating to fuel-supply apparatus for heating appliances in vehicles
IPC: F23N1/00
Filed: 1967-08-14
Abstract: 1,125,219. Liquid fuel supply systems for burners. WEBASTO-WERK G.m.b.H. 14 Aug., 1967 [10 Nov., 1966], No. 37276/67. Heading F4T. Fuel is supplied to the burner 2 of a vehicle heating appliance from a storage container 3 through an electromagnetically operated diaphragm pump 4, a dosing device 5 and a delivery pipe 6, the dosing device 5 comprising a Venturi tube 7, a proportioning nozzle 8, a membrane 9 and a controlled fuel valve 10, the membrane 9 dividing the dosing device into an admission chamber 11 and a delivery chamber 12 and air for combustion is supplied to the burner 2 by a blower 16 which is connected by a conduit 18 to the Venturi tube 7 and hence via nozzle 8 to the chamber 11, and the blower 16 is also connected to chamber 12 by a conduit 19. Air passing through the Venturi tube 7 causes a reduction in pressure in chamber 11 to distort the diaphragm 9 and open fuel valve 10 through a push-rod 14 so that the desired fuel/air ratio is obtained.
Patent GB-1466246-A (GB)
Title: Electrical switching circuits
IPC: F16K31/06
Filed: 1974-07-02
Abstract: 1466246 Transistor switching circuits R J REDDING 2July 1974 [7 Aug 1973] 37311/73 Heading H3T [Also in Division H2] An encapsulated circuit for receiving energy from an intrinsically safe source and supplying it to a solenoid comprises energy storage means in which energy from the source is accumulated, switching means operable to cause at least partial discharging of the accumulated energy and a diode to prevent feedback of energy from the circuit to the source. In one embodiment, Fig. 1, capacitor 6 is charged from a Zener protected supply 1 and when voltage across Zener 9 reaches a predetermined level, transistor 11 conducts to discharge capacitor 6 through solenoid 12. Capacitor 6 may be replaced by an electrolytic cell or a Ni-Cd secondary cell. In a circuit for a latching solenoid valve, Fig. 2, capacitor 19 charges to about 22À5 v. at which thyristor 16 fires to discharge capacitor 19 through coils 13 and 14 to switch on the valve and simultaneously charge capacitor 15. When capacitor has charged to about 10 v., thyristor 16 turns off, capacitor 15 recharges to 22À5 v. and thyristor 16 turns on again to push up the voltage on capacitor 15. The cycle is repeated several times. The valve is switched off by a short circuit across the input. This closes thyristor 16 and opens thyristor 28 whereby capacitor 15 discharges through coil 13 to switch off the valve. The circuit may be used with a magnetic hold-on valve, coil 14 being then unnecessary.
Patent GB-1468936-A (GB)
Title: Unsaturated polyester moulding composition and coated moulded article thereof
IPC: C08F299/04
Filed: 1974-08-27
Abstract: 1468936 Unsaturated polyester composition MITSUBISHI RAYON CO Ltd 27 Aug 1974 [29 Aug 1973(2) 19 Sept 1973(2)] 37389/74 Heading C3P An unsaturated polyester composition capable of being molded into articles having a good adhesion to a coating film comprises (A) a resinous compound consisting of (1) 20 to 70 parts by weight of an α,#-ethylenically unsaturated polyester, (2) 25 to 75 parts by weight of a vinyl monomer or a mixture of vinyl monomers selected from vinyl monomers copolymerizable with (1), (3) 1 to 25 parts by weight of a thermoplastic polymer as a shrinkage-reducing agent, and (4) at least one member selected from hydroxylgroup-containing vinyl monomers and epoxygroup-containing vinyl monomers in a ratio of 1 to 40 parts by weight per 100 parts by weight of (1), the sum of (1), (2), (3) and (4) being 100 parts by weight, (B) a fibrous reinforcement, and (C) a curing catalyst. Constituents used in examples include (A) (1) propylene glycol maleate; (2) styrene; (3) polymethyl methacrylate or polyvinyl acetate; (4) 2-hydroxypropyl methacrylate or 2-hydroxyethyl methacrylate or polyethylene glycol monomethacrylate or polypropylene glycol monomethacrylate or glycidyl methacrylate or allyl glycidyl ether; (B) glass fibres; and (C) t-butyl perbenzoate. Other constituents employed in the examples include dimethylaminoethyl methacrylate, acrylamide, methacrylamide, diacetone acrylamide, vinyl acetate, acrylonitrile, magnesium hydroxide, calcium carbonate, and a zinc stearate.
Patent GB-950829-A (GB)
Title: An improved discharge control valve for cisterns
IPC: E03D1/30
Filed: 1959-11-05
Abstract: 950,829. Cistern discharge valves. A. F. HANSEN. Nov. 29, 1960 [Nov. 5, 1959], No. 37511/59. Heading E1C. [Also in Division F2] A discharge control valve for a water cistern comprises a sleeve 1, adapted to be mounted vertically in the bottom of a cistern 4, formed with a valve seat 9 co-operating with a valve disc 10. The valve seat forms an edge of an annular channel 8 in a flange portion 5 of the sleeve which receives an assembly 2 comprising a flanged part 18, hollow pillars 20 and a closed end flange part 19a, 19b forming a chamber 19. The valve disc 10 is mounted between a backing plate 12, formed with a well 15, and a washer 13 on a spindle 11 which is guided in a bush 23 of the assembly 2. In operation, the valve disc is raised manually through actuation of the spindle 11 and abuts a flange 22 of the chamber 19 thereby sealing this chamber. Flow of water from the system through the sleeve sets up a suction at the mouth of the annular channel 8 and hence in the chamber 19 to hold the valve disc in its elevated position. When substantially all the water has flowed from the system, the suction effect ceases and the valve disc falls to the position shown. The bush 23 entering the well 15 in the opening of the valve provides a liquid seal for the chamber 19. To ensure that the valve disc 10 falls at the correct time to seat on the end of the sleeve, a breather hole may be provided in one of the pillars 20 or in the sleeve 1.
Patent GB-860818-A (GB)
Title: Prefabricated heat insulating panel
IPC: E04C2/36
Filed: 1958-02-26
Abstract: 860,818. Rigid laminates. CONSTOCK LIQUID METHANE CORPORATION. Feb. 26, 1958 [March 14, 1957], No. 37592/58. Divided out of 860,814. Class 140. [Also in Groups X and XXVIII] A prefabricated heat-insulation panel suitable for lining the wall of a liquefied gas container comprises a honeycomb cone 10, Fig. 5, e.g. of foamed glass having adhesively bonded to its front and rear faces plywood sheets 14, 16, Fig. 2, and to its peripheral sides balsa wood layers 12, and the panel so formed has transversely spaced bores 28 extending therethrough from the front to the rear to accommodate securing studs. The honeycomb cone 10 may comprise a plurality of slabs of resinated paper, corrugated wood veneer or plastic veneer interbonded to barrier walls 22, Fig. 3, which are also of resinated paper or wood. Specifications 860,816, 860,817 and 860,819 also are referred to.
Patent GB-1017932-A (GB)
Title: Improvements in or relating to the production of synthetic resins
Inventor: ARBUCKLE KENNETH HAROLD
IPC: C08F212/08
Filed: 1961-10-20
Abstract: Thermoplastic copolymers are made by copolymerizing a mixture of (a) an ethylenic monomer which forms a hard, i.e. brittle and inflexible, homopolymer, (b) an alkyl acrylate or alkacrylate which exerts a plasticizing effect on the copolymer, (c) an ethylenic mono- or di-carboxylic acid or anhydride thereof, and (d) a diallyl ester of a dicarboxylic acid, the mixture of (a) and (b) contituting a major proportion of the total monomers and ingredient, (d) constituting at least 5% by weight of the total monomers.  Monomers specified of the above classes are:  (a) styrene, vinyl toluene and methyl methacrylate, (b) butyl acrylate and nonyl methacrylate, (c) acrylic methacrylic, crotonic, maleic, fumaric and itaconic acids, and maleic anhydride, and (d) diallyl phthalate, isophthalate, malonate and succinate.  Copolymerization is effected in a solvent for the copolymer in the presence of at least one initiator, e.g. a mixture of benzoyl peroxide and tert.-butyl hydroperoxide.  The monomers and initiator may be added gradually to the polymerization medium as the reaction proceeds.  The resulting copolymer solutions are mixed with polyepoxy compounds, e.g. diphenylolpropane diglycidyl ether, basic catalysts, e.g. a C16 alkyl quaternary ammonium chloride, and, if desired, a pigment, e.g. titanium dioxide, and the resulting compositions used to provide coatings on steel which are rendered solvent-resistant by storing.  The examples describe the copolymerization of styrene, diallyl phthalate and methacrylic acid with (1) butyl acrylate, and (2) nonyl methacrylate.ALSO:Steel plates are provided with a solvent-resistant coating by applying thereto a solution containing a polyepoxy compound, a basic catalyst for the curing of the polyepoxy compound, and a copolymer derived from (a) an ethylenic compound which forms a hard homopolymer, (b) an alkyl acrylate or alkacrylate which exerts a plasticizing effect on the copolymer, (c) an ethylenic carboxylic acid, and (d) a diallyl ester of a dicarboxylic acid (see Division C3).  After application, the initial coating is rendered solvent-resistant by stoving.  The coating may also contain a filler or pigment, e.g. titanium dioxide. The examples describe coating steel plates with compositions of the above type in which the copolymers are made from styrene, diallyl phthalate, methacrylic acid and (1) butyl acrylate, and (2) nonyl methacrylate.
Patent GB-523320-A (GB)
Title: Improvements in or relating to the manufacture of bis-oxyphenyl compounds
IPC: C07C37/055
Filed: 1938-12-30
Abstract: 523,320. Bis-oxyphenyl compounds and their ethers. BOOTS PURE DRUG CO., Ltd., and SHORT, W. F. Dec. 30, 1938, No. 37903. [Class 2 (iii)] The alkyl, aryl or aralkyl ethers of di- or tetra-hydroxy-7:8-diphenyl-n-hexane are prepared by treating the corresponding ethers of an α-mono- or di-hydroxyphenyl-α-halogenpropane, in which the ether group or one of them is in p-position, with an alkali metal, aluminium, zinc or magnesium, whereby the two residues are linked together on elimination of the halogen atoms. The products may be converted by hydrolysis into the corresponding hydroxy compounds, which possess oestrogenic activity. The halogen is preferably bromine ; and as catalyst, iodine or an alkyl halide or a metallic alkyl halide may be present. According to the examples: (1) anethole hydrobromide, prepared by treating anethole with hydrogen bromide in gaseous form or in solution, is heated in ether or ether-benzene solution with magnesium turnings and the resulting 4:41- dimethoxy-7:8-diphenyl-n-hexane then heated with hydrobromic and acetic acids to effect demethylation; the anethole hydrobromide may be replaced by the hydrochloride or hydroiodide which are obtained in a manner similar to that described for the hydrobromide ; the magnesium may be activated with a little ethyl bromide or methylmagnesium iodide, or may be replaced by sodium wire, a liquid sodiumpotassium alloy, or zinc needles; (2) isoengenol methyl ether hydrobromide, prepared by saturating a benzene solution of the ether with hydrogen bromide, is boiled in benzene solution with sodium wire to give 3:3<SP>1</SP>:4:4<SP>1</SP>-tetramethoxy- 7:8-n-hexane, which may then be demethylated as before. It is stated that the anethole hydro- :bromide may also be prepared by reacting p-methoxy-benzaldehyde with magnesium ethyl bromide and treating the resulting p-CH 3 O. C 6 H 4 .CHOH.CH 2 .CH 3  with phosphorus tribromide. The Provisional Specification also describes the treatment of halogen-substituted alkyl-, aryl- or aralkyl-oxyphenyl aliphatic or aliphatic-aromatic hydrocarbons having both the oxyphenyl group and the halogen atom in the aliphatic chain; the phenyl group may contain more than one ether group or may contain a methylene-dioxy group.