baber/WOPTO huggingface dataset:
Patent GB-824133-A (GB)
Title: Improvements in or relating to controlling appliances for self-closing or automatic doors of the hinged or swing type
IPC: A62C2/12
Filed: 1957-02-07
Abstract: 824,133. Controlling fire doors. FULKER, L. J. Jan. 17, 1958 [Feb. 7, 1957], No. 4235/57. Class 47 [Also in Group XXV] A self-closing door is prevented from closing by a brake to which force is applied by a tension member including an adjusting member to vary the force and incorporating a fusible link, whereby melting of the fusible link relaxes the brake and allows the door to close. In the exemplified embodiment, each of a pair of double doors 11, 12, Fig. 1, is mounted on three strap hinges, the centre hinges 24, 16 respectively, being of the rising type so that the doors close under gravity. Brake shoes 33, carried by brake arms 28, 35, pivoted at their lower ends engage the rotatable end portions of the upper hinge or each door. The pivots of the arms 28, 35 each incorporates an eccentric member, Fig. 5 (not shown) for adjusting the position of the brake shoes. The upper ends of the arms 28, 35 are connected by a tension member comprising rods 36, 39, 38 an adjustable strainer 37 and a fusible link 51. The doors may be moved by hand against the braking force. The doors have rebated edges and in order to ensure that the door 11 having the inner rebate shall close first, this door is provided with a bracket 48, Fig. 7, which when the door closes, engages and lifts an arm 45 secured to a rotatable rod above the doors. The rod 40 carries above the door 12 an arresting arm 47 which in its dropped position holds open the door 12 sufficiently to allow the door 11 to pass but which is raised to allow the door 12 to close when the door 11 lifts the arm 45. The rising hinges each comprise upper and lower portions 17, 19 provided with sleeves 18, 21 having complementary half-turn helical formation. A tubular shield 21a having an internal diameter which is a little larger than the external diameter of the sleeve 18 is fixed outside the sleeve 21 to constitute an oil cup and a sleeve 18a having an internal diameter which is a little larger than the external diameter of the sleeve 21a is fixed outside the sleeve 18 to constitute a dust shield.
Patent GB-1405023-A (GB)
Title: Analogue-to-digital converters
IPC: H03M1/00
Filed: 1973-01-26
Abstract: 1405023 Analogue to digital conversion FERRANTI Ltd 29 March 1974 [26 Jan 1973] 4241/73 Heading H3H In analogue to digital conversion the input analogue VA is compared with a succession of binarily related reference voltages derived from the nodes of a ladder network 20, starting with the node, N1, of greatest digital significance, each reference voltage being retained in circuit if it does not cause the sum of the reference voltages then in circuit to exceed VA or disconnected if it does, the pattern of gating amplifiers 51-55 at the end of the conversion cycle being displayed at 58. Alternatively the sequence of outputs from the comparator 47 may be displayed at 58<SP>1</SP>. The logic 57 includes a clock 171, Fig. 2, which steps counter 161-167 causing bi-stables 151, 152 &c. to switch in turn thus enabling gating amplifiers 51, 52 &c. in turn. Whenever the resulting output of comparator 47 is a logic "1" (reference exceeds VA) the last switched bi-stable is reset thereby disabling the associated gating amplifier. When counter stage 166 is actuated, latches 191-195 pass the final state of the bi-stables 151, 152 &c. to the display 58. Then counter stage 167 resets all the bi-stables ready for a new conversion cycle. More than five digits would usually be provided.
Patent GB-535490-A (GB)
Title: A process for the production of sulphonium compounds
IPC: C07C381/12
Filed: 1940-03-08
Abstract: 535,490. Sulphonium compounds. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 8, 1940, No. 4358. Convention date, March 31, 1939. [Class 2 (iii)] In the preparation of sulphonium compounds by the reaction of sulphuric acid esters or aryl sulphonic acid esters of primary aliphatic alcohols of low molecular weight with a mixture of thio-ethers of varying reactivity the whole of the thio-ethers are. caused to react with the ester by a process comprising reacting first an excess of the thio-ether mixture with the esters, separating out the uncombined thioethers, and reacting these with an excess of esters to effect complete combination of all the thio-ethers. If desired the excess of esters may be then removed by reacting the mixture of the sulphonium compounds and excess of esters with a further quantity of the original thioether mixture. This further step is desirable in those cases where the excess of ester is difficult to remove or is specially undesirable for any reason such as the poisonous nature of the esters as when dimethyl sulphate is used. In an example an excess of a mixture of thio ethers obtained by reacting a mixture of sodium alkyl sulphate with a mixture of mercaptans is reacted with dimethyl sulphate and the lower layer of sulphonium compounds purified with gasoline. The thio-ether mixture is now reacted with an excess of dimethyl sulphate, and the sulphonium layer separated and subjected to a further reaction with thio-ether mixture. In this way all the thio-ethers which are of varying reactivity are caused to react. The mixture of sodium alkyl sulphate used in the example was obtained by sulphation and neutralization of a cracking distillate boiling between 160‹-320‹ C. obtained by vapour phase cracking of paraffin wax. The mixture of mercaptans used was obtained as a waste product in the refining of a cracking distillate of a sulphur containing crude oil produced according to the Dubbs process.
Patent GB-663660-A (GB)
Title: Improvements in methods of producing interpolymers
IPC: C08F22/28
Filed: 1949-02-17
Abstract: Soluble, unsaturated interpolymers are prepared by heating in the presence of a catalyst a tris-2-propenyl aconitate, a 2-propenyl alcohol and a compound selected from styrene, a -methylstyrene, p-methylstyrene, p-methoxystyrene, p-chlorostyrene, o,p-dichlorostyrene, p-trichloromethylstyrene, p-fluorostyrene and p - trifluoromethylstyrene, in the respective molar ratio of 1 : 0.4 to 6 : 0.1 to 5.  The 2-propenyl alcohols which may be used are allyl, 2-methallyl, 2-ethallyl, 2-chloroallyl, 2-(hydroxymethyl) allyl, 2-(chloromethyl) allyl, tiglyl, crotyl, 4-chlorocrotyl and cinnamyl alcohols.  Suitable aconitates are the esters of the above alcohols. The reaction is effected at 26-140 DEG  C. in the absence of solvents.  Specified catalysts are acetyl and benzoyl peroxides and tert.-butyl hydroperoxide.  The products may be precipitated by a non-solvent, e.g. diethyl ether or n-hexane and may be purified by dissolving in acetone and re-precipitating.  Concentration of the precipitating bath yields a further amount of lower molecular weight interpolymers.  The products may be dissolved in such solvents as xylene and monomethyl or monoethyl ether of ethylene glycol to yield coating solutions.  They may also be dissolved in liquid, ethylenically unsaturated compounds such as benzyl, tolyl, methyl and allyl acrylates, butyl methacrylate, vinyl butyrate, diethyl and diethyl fumarates and the solutions used in casting, laminating and impregnating operations, whereby they are polymerized to the insoluble, infusible state.  The interpolymers may also be converted alone to this state by heating at 60-100 DEG  C., particularly in the presence of a catalyst.
Patent GB-1307641-A (GB)
Title: Dithiols their preparation and composition made from them
IPC: C09D181/00
Filed: 1970-01-29
Abstract: 1307641 Dithiols SOC NATIONALE DES PETROLES D'AQUITAINE- 29 Jan 1970 [31 Jan 1969] 4385/70 - Heading C2C [Also in Divisions C1 and C5] Novel dithiols of formula where R is a C 1-20  divalent radical are prepared by reacting allyl chloride in the presence of a free-radical producing agent with HSRSH and treating the dichlorinated product obtained with an alkali metal acid sulphide and H 2 S. The products are used to plasticize sulphur. 1,9 - Dichloro - 4,6 - dithianonanone and 1,10- dichloro-4,7-dithiadecane are obtained by the first step of the above reaction.
Patent GB-288773-A (GB)
Title: Improved apparatus for sealing and closing packages
IPC: B65B7/20
Filed: 1927-02-16
Abstract: 288,773. Ritchie, Ltd., M. C., and Ritchie, M. C. Feb. 16, 1927. Labelling. - Closed and sealed packages pass down curved guides o and are fed intermittently to a labelling device by an oscillating finger p actuated by a cam q on the shaft of one of the wheels of a conveyer which feeds the packages to the guides o. The cam q also drives intermittently a perforating wheel s which draws labels from a roll v past a gumming roller w and feeds them to a press x adapted to press them on to the packages.
Patent GB-697277-A (GB)
Title: Improvements in valves
IPC: F16K1/52
Filed: 1952-02-20
Abstract: 697,277. Steam boiler blow-down apparatus DEWRANCE & CO., Ltd. Feb. 20, 1952 [Feb. 20. 1951], No. 4483/52. Class 123 (ii) [Also in Group XXIX] A disc type valve for controlling blow-down of hot liquid from a vapour generatoi has a duct 24 passing through the valve disc 18 and the spindle 5 and ending in a radial passage 25 discharging substantially axially into the outlet 4, the duct being unprovided with closure means and affording a resstricted flow between inlet 3 and outlet 4 while the the valve is closed. The duct includes a restriction 23 or a replaceable throttle disc and the passage 25 is of frusto-conical or venturi shape. The spindle 5 is threaded at its upper end and is raised or lowered when a hand-wheel 13, carrying a threaded nut 8 engaging over the spindle, is rotated. Rotation of the spindle is prevented by a key 16 which is carried by the yoke 10 supporting the spindle and which engages in a keyway in the spindle. Specifications 695,847 and 696,803, [both in Group XXIX], are referred to.
Patent GB-182139-A (GB)
Title: Improvements in or relating to bomb release gear
IPC: B64D1/04
Filed: 1919-02-24
Abstract: 182,139. Ranken, F. Feb. 24, 1919. Dropping bombs from a height. -An apparatus for dropping a number of small incendiary bombs, such as those described in Specification 134,559, comprises a cylindrical casing 12, Fig. 2, containing the bombs in two or more superimposed groups above a bottom closing-disc 23 supported by a central rod 26, which is slotted at its upper end 28 and provided with a roller 30 for engagement by a hook 36 secured in place by a cord adapted to be cut to release the bombs. The bombs are preferably placed within a liner 17 detachably secured to the outer casing by bolts 21; and the central rod 26 is temporarily held in place by a pin inserted transversely through a hole 31 in the rod. The hook 36 depends from a pivot 35 on a U-shaped bracket 34 at the top of the casing 12, by means of which the casing is hung on to an ordinary bomb-releasing gear. The cord that fastens the hook passes at one end through a hole 41, Fig. 5, in a block 42 on the casing; this end of the cord is knotted to prevent it from slipping through the hole. The cord from thence passes over a grooved block 40, Fig. 4, on the back of the hook, then over a knife 44, and the end is fastened by a nut 43. The knife 44 is fastened to an eye 48, which is gripped by a spring 51 and is attached to the aircraft by a metal strip adjustable in length or is connected by a hook 49 to a cord 50. The cord holding the hook 36 can thus be cut either by lifting the knife by a pull on the cord 50, or by releasing the main casing, which, in falling, brings the cord of the hook against the knife. The casing, which is provided with wings 16, may be dropped with the bombs, or the casing may be retained by a transverse pin which passes through the U-shaped bracket 34, and allows the casing to fall only a sufficient distance to cause the operation of the knife.
Patent GB-557356-A (GB)
Title: Improvements in or relating to electric dry cells
IPC: H01M50/121
Filed: 1942-04-08
Abstract: 557,356. Films. LORD, W. E. April 8, 1942, No. 4585. [Class 2 (ii)] [Also in Group XXXVI] A film for use in a dry cell is made from a high-viscosity ester-soluble nitro-cotton, using a plasticizer such as castor oil or tricresyl phosphate. The film may be made by applying the film-forming solution to a moving band of porous paper coated with a water-soluble gum. After the solvent has evaporated, the resulting film can be removed by wetting the paper to dissolve the gum, thereby permitting the film to be stripped from the band. The solution from which the film is made may comprise nitro-cellulose, ethyl acetate, butyl acetate, toluol, butyl alcohol, acetone and tricresyl phosphate, proportions being given in the Specification.
Patent GB-1104144-A (GB)
Title: A commutator motor having an improved method of mounting the brushes
IPC: H02K5/14
Filed: 1967-01-31
Abstract: 1,104,144. Brush holders for dynamo electric machines. S.W.F.-SPEZIALFABBIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 31 Jan., 1967 [15 July, 1966], No. 4624/67. Heading H2A. [Also in Division E2] In a commutator motor, the brush holders 4 are mounted on a plate 3 which is secured to motor housing 1 by stoppers 2 of resilient material. The stoppers comprise a flange 6 which lies between the plate and the housing and end collars 7 and 8 which are spaced apart by a distance less than the combined thickness of wall 1, flange 6 and plate 3.
Patent GB-229690-A (GB)
Title: Method of treating asphalt oil or pitch with a view to producing rubber-like masses therefrom
IPC: C10C3/04
Filed: 1925-02-19
Abstract: 229,690. Nielsen, K. W. Feb. 22, 1924, [Convention date]. Mineral and tar oils. -Asphalt oils or pitch from petroleum sources are rendered tough and resistant, to the oxygen of the air by submitting them to an oxidation by air in the presence of an oxide of nitrogen with or without small acting as a catalyst, quantities of a solid oxidizing substance such as manganese dioxide. The process may be carried out in the apparatus shown. Asphalt oil is heated in a cauldron a with stirrer b, and to each 200 kg. are added 2kg. of manganese, dioxide and 1 kg. of nitric acid. The product is pumped to a rose e in a tower f, and in its descent meets an upwardly directed spray of air from a nozzle g.
Patent GB-1034721-A (GB)
Title: Improvements in or relating to combined air-filter and resonator-type silencers for the induction air of internal combustion engines
IPC: F02M35/14
Filed: 1964-02-04
Abstract: 1,034,721. Purifying charge. S.A. ANDRE CITROEN. Feb. 4, 1964 [Feb. 6, 1963], No. 4733/64. Heading FIB. [Also in Division B1] An air intake filter and silencer comprises a casing 18, Fig. 3, with resonator spaces 9a, 9b, formed between the air inlet tube 5 and the casing, connected to the tube by branch ducts 8a, 8b. The tube 5 may be trumpet shaped and connected to half shells 18a, 18b, at the point 20, the filter 2 being held within the bent up ends 22, 23, of the casing shells. In Fig. 2 the air inlet tube 5 is formed by half shells 5a, 5b, with channel portions 8a, 8b, forming the passages leading to the resonator spaces, the ends 17a of the tube 5 being circular to mate with the filter 2 surmounting the outlet orifice 7. The tube 5 may be formed as a unitary member of plastic.
Patent GB-702026-A (GB)
Title: Ring assembly for textile ring spinning frames
IPC: D01H7/58
Filed: 1952-02-22
Abstract: 702,026. Spinning ring assembly. PENNATI, E. Feb. 22, 1952 [March 2, 1951], No. 4760/52. Class 120(2) A spinning ring assembly comprises an outer annular body adapted for stationary attachment to a ring rail, upper and lower inner annular bodies mounted for rotary movement within said outer annular body, drive means, between said upper and lower annular bodies and said outer annular body, adapted to rotatably drive said upper inner annular body and a drive connection on said lower inner annular body. As shown, the outer annular member 10 is supported in a ring rail by means of flange 12 and carries through bearings 24 the lower inner annular member 20. This member 20 has attached to it a cover member 40 which is provided with a V-groove 44 for a driving belt. The member 20 has an outwardly extending peripheral flange 34 on which a plurality of shafts 60 are mounted at equal distances apart for carrying frictional driving members 62 which run between the member 10 and the inner upper annular member 70, thus driving the latter in an epicyclic manner. The member 70 forms a supporting ring for the traveller 78.
Patent GB-929728-A (GB)
Title: Improvements in flexible reinforced corrugated hose
IPC: B29C48/13
Filed: 1960-02-10
Abstract: 929,728. Flexible hoses. H. K. PORTER CO. Inc. Feb. 10, 1960 [Feb. 11, 1959], No. 4786/60. Class 99(2). [Also in Group V] A flexible hose 1 comprises an interiorly and exteriorly corrugated tube 2 of elastomeric material and a plurality of circumferentially spaced, generally longitudinally extending, individual reinforcing cords 7 embedded in the tube. As shown, a helical wire coil 6 is embedded in the crests of the corrugations and the tube is provided with cylindrical fastening end portions 3. The cords 7 which are made of rayon, nylon, cotton, or natural or synthetic fibre should be spaced apart by a distance greater than their diameter and may be parallel to the axis of the tube or wound helically at an angle to the axis less than 20 degrees. The elastomeric material may be natural, reclaimed, vulcanised or synthetic rubber or resins, such as polyethylene, polyamides, vinyl polymers and copolymers. The cords are embedded in the elastomeric material by an extrusion process and the helical coil of wire is embedded in the crests of the corrugations by subjecting the blank tube formed by extrusion to internal pressure and heat by means of steam in an interiorly corrugated mould containing the wire coil (see Group V). The cords 7 may be embedded so they are at the surface of the hose adjacent the valleys or embedded so as to be completely covered by the elastomeric material. The outer surface of the hose may be of an elastomeric material differing in colour from the portion disposed interiorly of the cords. U.S.A. Specification 2,093,206 is referred to.
Patent GB-556778-A (GB)
Title: Improvements in, and relating to, poppet valves of internal combustion engines
IPC: F01L3/00
Filed: 1942-04-13
Abstract: 556,778. Valves. AUSTIN MOTOR CO., Ltd., and CHARLES, H. N. April 13, 1942, No. 4809. [Class 7 (vi)] A poppet valve A of the rigid or solid metal type has its stem and seating face formed on the side facing away from the engine cylinder, the seating face being shaped as part of a sphere with its centre C near the outer end of the valve stem ; or it may be formed tangentially to such a sphere. The fixed valve seating D is shaped to correspond. The valve-guide bore is preferably slightly flared towards the valve head ; or it may be of constant diameter, and the valve stem bowed outwards slightly at C, for example by plating that part of the stem with chromium or other metal.
Patent GB-786612-A (GB)
Title: Improvements in and relating to the preparation of quaternary amino carbinols
Inventor: BILLINGHURST JOHN EVLYN WARNER
IPC: C07D295/084
Filed: 1956-02-16
Abstract: N - (3 - Phenyl - 3 - cyclohexyl - 3 - hydroxypropyl) - N - methylpyrrolidinium salts are made by reacting 1-phenyl-1-cyclohexyl-3-methylaminopropanol, in the presence of an acid-binding agent, with a compound X-(CH2)4-Y in which X and Y are the same or different and are halogens such as chlorine or bromine or hydrocarbylsulphonoxy groups.  The anion of the product may be that of the group X or Y, but if desired, the product may be separated as the salt of an anion other than X or Y.  The reaction is suitably carried out by heating under reflux in a solvent such as isobutanol, toluene or as mixture of benzene and ethanol, in the presence of sodium or potassium carbonate as acid-binding agent.  In examples, 1-phenyl-1-cyclohexyl - 3 - methylpropanol - (1) is reacted with (1) 1 : 4-dibromobutane; (2) 1 : 4-di-chlorobutane; (3) 1 : 4-di-p-toluene sulphonoxybutane; and (4) 1 : 4-di-methanesulphonoxybutane, to give the corresponding quaternary N - (3 - phenyl - 3 - cyclohexyl - 3 - hydroxypropyl) - N - methylpyrrolidinium salts; the filtrate from (4) is treated with sodium iodide to produce a small amount of N-(3-phenyl-3-cyclohexyl - 3 - hydroxypropyl) - N - methyl pyrrolidinium iodide.
Patent GB-392309-A (GB)
Title: Improvements in automatic starting mechanism for internal combustion engines
Filed: 1932-02-18
Abstract: 392,309. Starting prime movers. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Feb. 18, 1932, No. 4863. Con. vention date, Feb. 24,1931. [Class 38 (iv).] The circuit of a motor SM for starting an internal-combustion engine is opened by means of a heat-responsive element in the event of an overload on the starting circuit which produces a predetermined rise of temperature therein. In the arrangement shown, closure of the ignition switch 23 energizes a solenoid 22 to close the starting switch 16. The starting circuit includes a single turn winding 17 surrounding an adjustable core 20 and serving to hold a plunger 38 in its raised position during the starting operation. When the engine starts, the current in the coil 17 weakens, and that in a voltage coil 39 strengthens, so that the plunger is drawn down, taking with it a pivoted lever 33 having a roller 32 which engages a wedge-shaped weight member 31 on a spring strip 29 and moves the latter to separate contacts 26, 27 in the circuit of the solenoid 22. The starting switch 16 is then opened by a spring, but the winding 39 remains energized by current produced by the spinning of the starting motor in its residual field until the generator G, driven by the engine, has picked up sufficiently to energize a winding 41 which acts to retain the plunger 38 in its lower position. If the engine fails to start, the heat produced by the overloading of the motor courses a bimetallic strip 47, secured to .one of the contacts 14 of the starting switch 16, to bend and move a slidably mounted insulating strip 48 to the right. The insulating strip is connected to a lever engaging the spring strip 29, and its movement causes the separation of the contacts 26, 27 with consequent de-energization of the solenoid 22 and opening of the starting switch 16. If the engine stalls, the winding 41 is de-energized, and the plunger 38 is returned to its upper position by a spring ; releasing the weight member 31 which vibrates for a predetermined time, due to its pendulum mounting on the spring strip 29, thus giving the engine time to come completely to rest. When the vibration ceases, the contact 27 comes to rest against the contact 26 and the starting operation is repeated.