baber/WOPTO huggingface dataset:
Patent GB-705517-A (GB)
Title: Improvements in or relating to synthetic resinous material reinforced with fibrous asbestos
Inventor: BISHOP PETER HAROLD HOWARD
IPC: C04B26/04
Filed: 1951-04-19
Abstract: 705,517. Resin-bonded fibrous sheet material; laminated material. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 16, 1952 [April 19, 1951], No. 9207/51. Class 140 Synthetic resinous material reinforced with substantially parallel asbestos fibres is produced by subjecting asbestos rock to pressure in one direction transversely of the general direction in which the fibres extend so as to maintain their natural parallelism, impregnating the resulting loosened mass of fibres with a softenable or removable binding material, pressing, and slicing to produce layers of which the fibres are substantially parallel to the surfaces. The layers may then be arranged in a stack with their fibres parallel and subjected to pressure applied perpendicular to the general planes of the layers after softening or removing the binding agent. The operations of slicing into layers, arranging the layers in a stack, in a different order, or with some layers reversed, if desired, and repressing, may be repeated once or oftener. Subsequently, the binding agent may be removed, and the layers impregnated with a curable synthetic resin and subjected to the curing treatment. A number of layers may be partly cured, superimposed to form a stack with the fibres in different layers parallel or at chosen angles, and the cure completed by hot-pressing. The softenable binding material may be a component or the whole of the resinous material of the finished product, or a removable binding agent such as paraffin wax, zinc nitrate, Rochelle salts, or ice may be used. Paraffin wax may be removed from a stack containing it by boiling it in carbon tetrachloride while enclosed in a copper gauze envelope. Specifications 636,237 and 662,331 are referred to.
Patent GB-766868-A (GB)
Title: Improvements in or relating to electrical inverter systems
IPC: H03K3/45
Filed: 1955-03-30
Abstract: 766,868. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 30, 1955 [April 6, 1954], No. 9250/55. Class 38 (2). [Also in Group XL (c)] A circuit for deriving A.C. from a D.C. source comprises a pair of transistors 71, 73 of which the emitter-collector electrodes 77, 79 and 83, 85 are connected in series with a D.C. battery 69 and a respective primary winding 91, 93 of an output transformer 87 which delivers A.C., preferably of rectangular wave shape, from its secondary winding 103. The P.N.P. junction-type transistors are made alternately non-conducting and conducting (from cut-off to saturation) by the base electrodes being made +ve and -ve relative to the emitter electrodes by voltages developed in centre-tapped winding 117 of transformer 109. The input to primary winding 111 of this transformer has preferably a rectangular wave form. In the arrangement of Fig. 7 a single primary winding 131 of output transformer 127 is alternately energized from two transistors 71, 73 from D.C. batteries 69a, 69b respectively, the emitter-base electrode potentials being controlled by windings 143, 145 on transformer 109. The transistors may be of PNP and NPN types respectively with suitable alterations to the circuit, Fig. 8 (not shown). The transformer core 87 has preferably a substantially rectangular hysteresis loop, Fig. 2 (not shown). The transistors may be controlled by voltages from the output transformer when the output frequency is determined by the circuit charactereistics (see Group XL (c)).
Patent GB-1506731-A (GB)
Title: Method for regenerating used active carbon
IPC: B01J20/34
Filed: 1975-03-06
Abstract: 1506731 Regenerating active carbon KYORITSU YUKI KOGYO KENKYUSHO KK 6 March 1975 [9 May 1974] 9278/75 Heading C1A [Also in Division H5] Active carbon which has been used to purify contaminated liquid is regenerated by passing it continuously through an airtight vertical furnace past a plurality of vertically spaced sets of electrodes wherein a higher voltage is applied across electrodes in an upper region of the furnace to evaporate off moisture and decompose organics than across the electrodes in a lower region where the temperature is raised to regenerating temperature. A liquid electrolyte may be added to the carbon and steam may be admitted to the furnace.
Patent GB-1454506-A (GB)
Title: Manufacture of cigarette filters
IPC: A24D3/02
Filed: 1973-02-26
Abstract: 1454506 Delivering filters in orderly arrangement MOLINS Ltd 25 Feb 1974 [26 Feb 1973] 9315/73 Heading A2C Two endwise-moving streams of rod-like articles are caused to move around a conical surface along separate paths which merge and progress spirally towards the lesser diameter end of the surface, the articles in the streams being staggered so as to intercalate as they merge. As shown in Figs. 1 and 2 a wheel 2 delivers to a cone 4 a succession of spaced endwise-moving filter portions A, the axes of rotation of cone 4 and wheel 2 being parallel, one with the other. Similarly another wheel 6 delivers filter portions B to the same cone 4 at a different position on its surface. Filter portions A move initially along a path 12 in a plane normal to the axis of cone 4. The path 14 of the filter portions B is initially in a parallel plane but then bends upwards so as to merge with the path 12 at a point 16. Thus a substantially closed stream of alternating filter portions is delivered tangentially from the top of the cone (by means not shown) onto a continuous wrapper web to form a continuous rod. Further apparatus (not shown) is described to indicate how streams of spaced filter portions may be delivered to the cone.
Patent GB-920306-A (GB)
Title: Fabrication method for semiconductor devices
IPC: H01L23/29
Filed: 1961-03-14
Abstract: 920,306. Coating with metals; modifying metallic surfaces. PACIFIC SEMICONDUC. TORS Inc. March 14, 1961 [Aug. 25, 1960], No. 9329/61. Class 82 (1). [Also in Group XXXVI] An oxide masking layer is formed on the surface of a semi-conductor such as Si, Ge, InSb, GaSb, AlSb, InAs, GaAs, CaP or InP by heating in air, stripping this first oxide layer and forming a second oxide layer which is stripped in selected areas for further treatment such as metal coating or diffusion of active impurities. In the example an interleaved NPN transistor 10 is made by diffusing phosphorus into N type silicon to form N + collector region 14, and the P type region 11 is made by diffusing boron. The oxide layer formed on region 11 during this diffusion process is stripped in 48% HF and a fresh oxide layer 17 free of contaminants is then formed by heating in air at 850‹ C. to 1100‹ C. This oxide is removed according to the pattern of Fig. 2 by etching in HF and phosphorus is diffused into the exposed surface 18 at 1000‹ C. to 1265‹ C. in a nitrogen atmosphere. The remaining oxide is then removed in HF. A further oxide layer may be formed and stripped according to a required pattern, preferably by a photo resist method ; to expose the surface 18 of P type region 11 (Fig. 9, not shown). This surface is chemically plated by immersion in a solution containing nickelous chloride, sodium citrate, sodium acetate and sodium hypophosphite in a ratio of 30 : 15 : 5 : 10 gms./litre heated to 95 ‹ C. A solution of gold chloride, HCl, and HF in a ratio of 16: 30: 10 gms./litre and a solution of 1 part HF to 4 parts water are added to the first solution and a gold/nickel deposit is formed on surface 18 as ohmic contacts.
Patent GB-614553-A (GB)
Title: Improvements in or relating to burner assemblies for internal combustion turbines
IPC: F23R3/28
Filed: 1946-03-26
Abstract: 614,553. Burners. OULIANOFF, G. March 26, 1946, No. 9344. [Class 75 (i)] [Also in Group XII] In a combustion chamber and burner assembly for a gas turbine engine of the kind in which the combustion chamber comprises an outer casing within which is supported a flame tube and wherein the fuel burner jet introduces fuel into the flame tube at its inlet end, the burner jet support is in the form of a spider comprising a rim portion supported by the outer casing of the combustion chamber, a hub portion supporting the burner. jet parts and the flame tube at its inlet end, and a plurality of spokes extending between the rim and hub one at least of these spokes being formed as a conduit to convey liquid fuel to the burner jet. A burner assembly 10, comprising a circular rim 21, three spider arms or spokes 22, 22a, and a hub 23 which supports the burner and the inlet end of the flame tube, mounted in the cylindrical recess 25 of the inlet casting 24 of a combustion chamber. The rim is provided with three equi-spaced studs 26 that pass through a side wall of the recess 25 which is formed with bosses 27 to accommodate the studs. Nuts 28 secure the assembly in position. The spokes 22, 22a, are of streamlined cross-section and one of them is drilled to form a passage 29 communicating with a hole 30 formed in the associated stud 26 which is connected to a fuel supply pipe. The hub 23 is provided with a cylindrical projecting portion 14 which encloses the burner jet and forms a support for the inlet end of the flame tube 7. the portion 14 is bured at 31 to supply fuel to the jet 34, which is clamped against the hub by a cap nut 36 engaging a radial flange 35 on the jet. The portion of the jet within the bore 31 is smaller in diameter than the bore and is provided with fuel inlet holes 37. A cylindrical gauze fuel filter 32 which is open internally to the bore 31 abuts against the shoulder piece 33 and the jet 34. Spaced passages 39 extend through the hub 23 from its inlet face to the annular space within the shroud 38 so that air can flow through the shroud to prevent the formation of carbon on the jet. When applied to spill-type burners, burners having more than one fuel supply, or burners having a special supply of atomising air, the burner assembly may have more than one of the spokes 22 drilled to provide a conduit for the additional fuel or air.
Patent GB-1417361-A (GB)
Title: Electron gun assembly
IPC: H01J37/06
Filed: 1974-03-01
Abstract: 1417361 Electron guns NIHON DENSHI KK 1 March 1974 [3 March 1973] 9451/74 Heading H1D To avoid damage to the cathode of an electron gun during pre-operation conditioning of the gun, by the application of potentials which nessitate changing the connections between the various gun electrodes and their power circuits, the requisite switches, together with protective resistors, are connected between the gun chamber and the cable from the power supply, to prevent charge stored in the stray capacitance of the cable from giving rise to arcing across the gun electrodes in the event of insulation breakdown due to vacuum deterioration. As shown, the heated field emission cathode 3 of the gun of an electron microscope is mounted in a gun chamber sealed by a ceramic end wall 17 from an insulated chamber 18 filled with insulating oil 23 and housing switches SW1, SW2, and SW3, mounted on a common shaft for actuation by control knob 22, together with resistors 13 and 14, capacitor 15, and arrester 16, the power supply being connected via cable 7. Reference is made to the use of the arrangement also with thermionic cathodes, and to the use of reed switches (Fig. 3, not shown) instead of the mechanical switches SW1, SW2, and SW3.
Patent GB-358019-A (GB)
Title: Improvements in and relating to burglary, fire, flood or other danger alarms
IPC: G08B13/22
Filed: 1930-03-25
Abstract: 358,019. Burglar and like alarms. SOC. DETECTIF, 36, Rue Rochechouart, Paris. March 25, 1930, No. 9491. Convention date, April 2, 1929. Void [Published under Sect. 91 of the Acts]. [Class 118 (i).] Apparatus for recording the time during which an alarm is set, for example the automatic burglar alarm described in Specification 310,839, [Class 118 (i), Indicators &c.], comprises a pair of pushbuttons 35, 54 adapted to be depressed respectively at the beginning and end of the said time interval and to make each a mark on a moving tape 60 or disc. A standard curve is prepared for conversion of the distance between the marks into the correct time interval according to the corresponding diameter of the drum driving the tape. The button 35 is used in conjunction with the setting-bolt 31 as described' in Specification 310,839, while the button 54 when depressed moves aside a stop 52 and allows the return of the bolt 31 to put the system out of action.
Patent GB-417103-A (GB)
Title: Loop-taker for sewing machines
IPC: D05B57/14
Filed: 1934-04-03
Abstract: 417,103. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) April 3, 1934, No. 9658. [Class 112.] A loop-taker flange comprises a spring - pressed pivoted part 12 which yields radially when a thread is caught in the raceway. The part 12 is held by a cover ring 18 and a spring needle-guard 14.
Patent GB-329755-A (GB)
Title: Improvements in or relating to sugar cane and like mills
IPC: C13B10/06
Filed: 1929-03-26
Abstract: 329,755. Lang, A. M., (Leach, S. H.). March 26, 1929. Roller mills.-In a sugar cane or like roller mill, a scraper 6 is carried by brackets 9, Fig. 1, from or by the bearings of the rollers and is maintained in contact with the roller by springs 14 or weights whereby the scraper moves with the roller. The bracket 9 is fixed to each of the bearings 3 of the floating roller 1 and supports a bar 7 at each end of which is an arm 11 under the control of a spring 14 on a rod 12 pivoted to the bracket 9. The scraper 6, which may be flat, ribbed, grooved &c. to correspond to the surface of the roller, is attached to a part 6<x> secured on the shaft 7 so that the pressure of the scraper on the roll is adjustable by the spring 14. The bar 7, Fig. 4, may be adapted to slide in slots 8<x> formed in the side brackets 9 and is pressed onto the roll by an adjustable spring 14.
Patent GB-904326-A (GB)
Title: Apparatus for and method of sealing thermoplastic tubes
IPC: B65B51/14
Filed: 1960-03-18
Abstract: 904,326. Seaming non-metallic sheet material. PNEUMATIC SCALE CORPORATION Ltd. March 18, 1960 [Nov. 16, 1959], No. 9696/60. Class 42 (1). [Also in Group XVII] Apparatus for closing and sealing the open end of a thermoplastic tube comprises means for engaging and flattening opposed walls of a tube, means for pressing the walls and heating them by conduction to soften and fuse the walls to form a seal and means for thereafter engaging and pressing the softened walls to set and shape the seal whilst it is cooling. As shown, filled tubes 10 are supported in pockets 12 on tray 14 positioned on platform 16 so that the ends of the tubes are between elongated gripping jaws 24, 26, which are supported on and movable with an elevating unit 28 operated by piston-rod 57. Operation of unit 28 withdraws the tubes 10 from pockets 12 and presents their upper ends to heat-sealing mechanism 25 whereupon the empty tray 14 is retracted and filled with another bank of tubes. The jaws 24, 26 are operated by a two-armed lever on rocking shaft 78 operated by air cylinder 90. The heatsealing mechanism 25 includes a pair of elongated, rigid heat-sealing and pressure-applying jaws 120, 122 on rocker arms 124, 126 mounted on shafts 130, 132 operated from air cylinder 140, each heat-sealing jaw being provided with electric heating elements 128. The heat and pressure can be regulated to suit different thermoplastic tube material. After sealing, the jaws 120, 122 are retracted and a pair of shaping jaws 160, 162, preferably at room temperature, are brought into engagement with the flattened tube while it is still in a softened or semisoftened state. Shaping jaws 160, 162 are carried on arms 164, 166 clamped on rocker shafts 168, 170 operated by air cylinder 172. The air cylinders are controlled for timing the operations thereof by a plurality of cam-operated valves. The fused area of the seal is defined by the shaped portions of the jaws 160, 162 and is at least equal in thickness to the thickness of the wall of the container.
Patent GB-794541-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C08L67/06
Filed: 1956-03-29
Abstract: Casting compositions comprise (A) 60 to 40 per cent of a polyester resin derived by heating at 150 DEG  to 260 DEG  C. (a) one mol. of at least one unsaturated dicarboxylic acid selected from fumaric acid, itaconic acid, maleic acid, maleic anhydride, chloromaleic acid, citraconic anhydride and citraconic acid; (b) 3 to 15 mols. of at least one saturated dicarboxylic acid selected from adipic, succinic, diglycolic azelaic, suberic and sebacic acids and succinic anhydride; (c) 0.5 to 5 mols. of propylene glycol; and (d) 14 to 9 mols. of ethylene glycol, the glycols providing a 5 to 15 per cent numerical excess of hydroxyl over carboxyl groups; (B) 40 to 60 per cent of a normally liquid resinous epoxide, derived from at least one polyhydric phenol and at least one epihalohydrin; and (C) 10 to 40 per cent, based on (A) plus (B), of a bentoniteamine reaction product, together with catalysts to bring about the individual polymerization of (A) and (B).  In preparing (A) 0.1 to 0.75 mol. of glycerol may additionally be employed and up to 20 per cent of the ethylene and propylene glycols may be replaced by equimolecular proportions of higher glycols, e.g. diethylene glycol, 1,3-butylene glycol, triethylene glycol and neopentylene glycol.  Preferably the components are heated under an inert atmosphere, e.g. carbon dioxide, in the presence of an esterification catalyst, e.g. sulphuric, hydrochloric, benzene sulphonic and p-toluene sulphonic acids, and azeotroping liquids, e.g. toluene and xylene. Specified polyhydric phenols are 4,41-dihydroxydiphenyl-dimethyl methane and 4,41-dihydroxydiphenyl sulphone, and specified epihalohydrins are epichlorhydrin and epibromohydrin.  (B) May be prepared by heating 1 to 2 mols. of epihalohydrin with one mol. of phenol in the presence of an excess of aqueous alkali, e.g. sodium, potassium or lithium hydroxides.  (C) May be the reaction product of bentonite with hexadecylamine or octadecylamine salts. Specified catalysts are benzoyl peroxide, t-butyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide, t-butyl hydroperoxide, ascaridole, t-butyl perbenzoate, di-t-butyl perphthalate, ozonides, cobalt naphthenate, chromium acetyl acetonate, azomethines.  Vinyl monomers, e.g. styrene, and inhibitors, e.g. hydroquinone, resorcinol, tannin, sym. alpha, beta-naphthyl p-phenylene diamine and N-phenyl-beta-naphthylamine may be present.  The compositions may be cast about metal members, e.g. conductor bars, and used in the manufacture of electrical equipment, e.g. transformers.
Patent GB-384518-A (GB)
Title: Improvements in or relating to apparatus for preheating boiler feed water and other l
IPC: F22D1/32
Filed: 1932-03-30
Abstract: 384,518. Heating feedwater ; U-tube heat exchangers. AKTIEBOLAGET GOTAVERKEN, and JOHANSSON, J. E., 25, Olivedalsgatan, both in Gothenburg, Sweden. March 30, 1932, No. 9161. [Classes 64 (i) and 64 (iii).] A preheater for boiler feedwater and other liquids is provided with groups 5 of two or more U-tubes nested within one another and secured in tube plates 3 which form a header in combination with an exchangeable lid 4, the latter having inlets and outlets for the medium to be preheated and cells open towards the tube plate, each U-tube having its mouth on opposite sides of a wall 10 common to all the cells which are arranged so that the medium being preheated must pass three or more times in each direction through the preheater. The wall 10 shown in Fig. 2 is horizontal, and it is preferred to make it vertical when the number of cells on each side of it are not equal, and inclined when they are equal so as to bring the inlet and outlet cells to the lowest and highest points respectively of the apparatus. Fig. 1 shows preheaters I, II, III, in series, steam at different pressures being used as a heating medium in each. By exchanging lids 4 a different number of passes through the apparatus of medium to be preheated can be obtained. Hot gases may be used for heating instead of steam.
Patent GB-900146-A (GB)
Title: Improvements in or relating to latching devices
Inventor: MOSS NORMAN SIDNEY
IPC: E05B65/19
Filed: 1959-03-23
Abstract: 900,146. Latches. WILMOT-BREEDEN Ltd. March 14, 1960 [March 23, 1959], No. 9911/59. Class 44. A latching device comprises a catch member 12, pivotally mounted at 13 on a support 11, which is adapted to retain a latch element 14, a locking lever 16 pivotally mounted at 17 on the support 11 so as to retain the catch member when the latter is in its latched position, and resilient means 21 for urging the catch member towards its open position and for urging the locking lever towards its operative position. When a cable 20 is pulled the locking lever 16 disengages the catch member 12 and then rotates the catch member to unlatch the element 14. A safety-catch 22 is provided. A similar construction (Fig. 2, not shown) is described in which release is effected by a striker or pushbutton.
Patent HK-144294-A (HK)
Title: Grouped control affording instantaneous attribution of destination calls
Inventor: FRIEDLI PAUL DR
IPC: B66B1/20
Filed: 1994-12-15
Abstract: In this grouped control, a call to be allocated for the first time to a cabin is instantaneously and definitively allocated after its input. For this purpose, immediately after the call input, for all the lifts operating costs corresponding to the waiting times of passengers are calculated from lift-specific data solely for the input floor and destination floor of the new call and are transferred to a cost register (R1). The comparison of these operating costs is then carried out immediately, the call being allocated definitively to the lift with the lowest operating costs. The operating-cost calculation extends to all the participants in the cabins and on the floors, the computer using a running-timetable (15), in which the running times between a particular floor and any other floor are stored. A door-timetable (14) stores the door opening and closing times of the particular lift, which the computer uses for calculating the standstill time of the cabin. Operating costs calculated in this way achieve better comparative results and provide exact data on the actual waiting times of all the participants. 
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Patent HU-T40638-A (HU)
Title: Process for producing 1,2-dithiolane-3-pentanoic acid
Inventor: GIRAY GUENES
IPC: C07D339/04
Filed: 1986-04-10
Abstract: Compounds of forumla XII    <IMAGE>  XII  wherein R1 is hydrogen and R2 is phenyl or benzyl are useful as intermediates in the preparation of 1,2-dithiolane-3-pentanoic acid (D,L-thioctic acid) of formula IX <IMAGE> IX
Patent HU-T34011-A (HU)
Title: Process for producing 1-triazolyl-ethyl-ether derivatives
Inventor: NYFELER ROBERT
IPC: C07D249/08
Filed: 1984-05-18
Abstract: Essentially, a process is described for the preparation of the 1-triazolylethyl ether derivatives, defined in claim 1, of the general formula I   <IMAGE> (I)  which consists in (a) reacting an oxirane of the formula II   <IMAGE> (II)   at temperatures of -20 DEG to +100 DEG  C., in the presence of an acid catalyst or an acid condensation agent, with an alcohol of the formula III R3-OH (III) to give a glycol monoether of the formula IV   <IMAGE> (IV)   and (b) subsequently reacting the glycol monoether of the formula IV or one of its esters, in the presence of an acid-binding agent or condensation agent, at temperatures of 0 DEG  to 150 DEG  C., with a triazole of the formula V   <IMAGE> (V)   the substituents R1, R2 ; amd R3 in the formula II to IV being as defined under formula I and M in formula V being hydrogen or a metal atom. The novel compounds within the scope of formula I and their use are also described.