baber/WOPTO huggingface dataset:
Patent GB-1499201-A (GB)
Title: Atomizer
IPC: F24F6/14
Filed: 1975-01-03
Abstract: 1499201 Spray-producers LONGWOOD MACHINE WORKS INC 3 Jan 1975 [11 Jan 1974] 258/75 Heading B2F  An atomiser suitable for the control of humidity and having a liquid discharge nozzle 20, a liquid flow chamber 30 communicating with said nozzle, and means for discharging air under pressure around said nozzle to aspirate liquid from the flow chamber and atomise the liquid as it leaves the nozzle, is provided with a cleaning rod 32 and a valve comprising a frusto-conical component 96 formed by a portion of the cleaning rod and a stationary annular component 98 disposed in the body of the atomizer, said cleaning rod being movable between a position, Fig. 2, in which the cleaning rod is withdrawn from the nozzle and the valve is open so that liquid introduced at 92 passes through the valve into the flow chamber and thence to the nozzle, and a position, Fig. 1, in which the valve is substantially closed and the forward end of the cleaning rod is disposed within the outlet of the nozzle. In the latter position the nozzle is sealed by the engagement of a sealing component 106 on the cleaning rod against a cup-shaped insert 108, said insert being held in position by a compression spring 114 which also holds the stationary valve component 98 in position. Air is supplied to the atomiser through a port 58 and passes through a lateral passage 60 and a longitudinal passage 62 to an annular chamber 64 and thence through apertures 24, 26 to an annular outlet orifice 18, the aperture 26 extending obliquely to impart a swirling motion to the aspirating air. The cleaning rod is reciprocated by means of a spring-loaded piston 36 to which the end of the cleaning rod is attached, movement of the piston being effected by the application of air under pressure through passages 62', Fig. 1, or 62" Fig. 2. Movement of the piston is limited by a stop screw 54 which is adjustable so that the tapered portion of the valve can be disposed at any selected position with respect to the stationary component 98. Bleed ports 72 and 88 are provided for the removal of any air which leaks past the piston and any air or liquid which leaks past the cleaning rod.
Patent GB-1325081-A (GB)
Title: Transistors
IPC: H01L21/331
Filed: 1971-01-04
Abstract: 1325081 Transistors INTERNATIONAL BUSINESS MACHINES CORP 4 Jan 1971 [20 Jan 1970] 265/71 Heading H1K A transistor forming part of a monolithic integrated circuit comprises emitter and collector zones disposed side by side and less than 3 minority carrier diffusion lengths apart in one face of a base zone, and a further region of opposite conductivity type to the base zone disposed less than 1 diffusion length from the emitter and collector zones on the opposite face of the base zone. A typical construction of a PNP transistor of this type is shown in Fig. 3, and of an NPN transistor in Fig. 2. These devices are manufactured using standard epitaxial deposition and oxide masked diffusion techniques of which details are given. The transistors have higher current gain than lateral transistors since many of the vertically emitted carriers, which in a lateral transistor recombine, are collected by the further region 203 or 303 and re-emitted adjacent the collector.
Patent GB-344826-A (GB)
Title: A process for preparing concentrated nitric acid
IPC: C01B21/26
Filed: 1929-12-06
Abstract: Apparatus for the production of highly concentrated nitric acid from nitrogen oxides or liquid nitrogen tetroxide, water, and oxygen or oxygen-containing gases, at elevated temperature and pressure, is constructed of, or lined with aluminium, either pure, alloyed with other elements such as silicon, or coated with a protecting film of aluminium oxide.  Pressure vessels or conduits may be entirely of aluminium or its alloys, or aluminium linings may be used which fit tightly against the supporting walls at high pressures.  Aluminium vessels may be placed in a chamber, the intermediate spaces being filled with oxygen or other gas under pressure, or with other substances to support the pressure.  The aluminium envelope may have a lining of ceramic material, such as quartz.  The heating of the initial mixture is carried out at full service pressure to lessen the corrosive action.  It is advantageous to keep the water content low by using aqueous tetroxide-containing acid instead of water and nitrogen tetroxide, and to add a little aluminium to the initial liquid.  This initial mixture may be prepared in aluminium apparatus, stored over aluminium rings, or the pressure pipes may be filled with aluminium rings.  On concentration of the mixture, the aluminium thus introduced separates as a sludge and protects the walls. The aluminium lined pressure pipes may have a lid or a lid and bottom plate, lined with the same metal, through which connections for the acid and gas valves extend, the compressed gas being absorbed by the surface of the liquid or introduced by dipping devices.  The pipes may be packed with suitable material or catalysts.  Working may be intermittent or continuous, and several pipes may be connected to obtain pressure and temperature stages, to work in counter-current, to sluice in liquid, to store compressed gas or to utilize waste gas. The valves may be mounted on T-pieces which, together with the other fittings such as connections, are preferably made of chromium steels. Specification 293,077, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-303521-A (GB)
Title: Liquid distributing devices for gas absorption and like apparatus, particularly for refrigerating
IPC: F25B39/02
Filed: 1929-01-05
Abstract: 303,521. Electrolux, Ltd., (Assignees of Platen-Munters Refrigerating System Aktiebolag). Jan. 6, 1928, [Convention date]. Liquids, treating with gases. - In absorbers of refrigerating systems or other apparatus for treating gases with liquids, having distributing devices comprising apertured metal plates a in contact with heat distributing surfaces, the plates are provided on their undersides with metallic attachments for causing adhesion of a capillary film of the liquid. Wire gauze c, which for refrigerating apparatus may have 20 to 30 meshes per square centimetre, may be secured by spot welding to the undersides, and where the plates have a segment cut away, as shown in Figs. 1 and 2, the gauze is carried over the top of the straight edge b. The plate a shown in Fig. 3, which is substantially of the shape described in Specification 231,521, has a gauze liner secured by a spring ring k and a cross bar g. The liner is continued up through the flanges f of the openings l. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following:- In place of the gauze the undersides may be provided with fine grooves or other irregular surfaces. This subject-matter does not appear in the Specification as accepted.
Patent GB-793160-A (GB)
Title: A process for the esterification of isophthalic acid
IPC: C07C69/80
Filed: 1957-01-04
Abstract: Diesters of isophthalic acid are prepared by heating isophthalic acid with an excess of an alcohol, in the absence of a catalyst, at elevated pressure and at a temperature of more than 150 DEG  C.  The product crystallizes out on cooling and the alcoholic mother liquor obtained is used for further esterification of a fresh quantity of isophthalic acid without the removal or after only partial removal of the water formed in the reaction.  The alcoholic mother liquors may be used several times provided the water content remains below 30 per cent.  A portion of the mother liquors may be distilled to remove some of the water and reduce the total water content to below 30 per cent.  As the water content rises the amount of monoester increases and this is further esterified in the next cycle.  The alcohols specified are those containing up to 4 carbon atoms, preferably methanol, and the alcohol is normally present in a 20-40 fold molar excess.  An example is given where methanol mother liquors are cycled 6 times to give a yield of diester of 88 per cent and the composition of the product and the amount of water present are given after each step.  A further example shows the effect on the composition of the product of increasing the water content of the reaction mixture. Specification 695,566 is referred to.
Patent GB-370487-A (GB)
Title: Improvements in surface carburetting apparatus
IPC: F02M1/00
Filed: 1931-01-06
Abstract: 370,487. Surface carburettors. GIRATION DES FLUIDES, Rue George Sand, Montluþon, Allier, France. Jan. 6, 1931, No. 488. Convention date, Feb. 4, 1930. [Class 7 (iii).] Air is admitted tangentially at 6 to. a mixing chamber 1 having the form of a surface of revolution to which fuel is supplied from a float chamber by a pipe 12, the fuel being swept over the surface of the chamber by the gyrating mass of air therein ; the exposed surface of the film of fuel is evaporated, the mixture leaving by a pipe 4. The axis of the mixing chamber 1 may be either horizontal, Figs. 3 and 6, or vertical, Fig. 7. The chamber 1 is shouldered at the outlet end, as at 10, to prevent unvaporized fuel from leaving, the opposite end 11 being closed and of the forms shown in either Figs. 6 or 7. Secondary air may be admitted at the end 11 through a Venturi 19, Fig. 6, the outlet end of which may be optionally provided with a movable or fixed deflecting member 23; when movable the deflector may-be controlled automatically or manually. The chamber 1 may be so arranged in relation to the fuel supply that when the rate of air flow is low or stopped a small quantity of fuel remains in the chamber, this fuel may be supplied from a separate tank 14, Fig. 3, by an auxiliary pipe 15 through a calibrated orifice 18. In the construction shown in Fig. 7 secondary air is admitted to the mixture outlet by an opening 27 of frusto-conical shape. The opening 27 may be adjusted manually or automatically by the axial movement of parts 25 or 26. This arrangement of the secondary air inlet is stated to reduce the danger resulting from backignition. The air may be supplied by a plurality of admission openings 6 which may have the form of flattened nozzles arranged tangentially about the maximum circumference of the chamber 1; the air may'be admitted beneath the fuel film so that an atomizing effect is obtained by the passage of the air through the fuel, or the nozzles may project inwardly to deliver the air direct to the chamber 1. An exhaust or water-heated jacket may surround the mixing-chamber, or it may be electrically heated.
Patent GB-699419-A (GB)
Title: Improvements in pumps for pumping or conveying concrete
IPC: F04B15/02
Filed: 1951-01-08
Abstract: 699,419. Pistons. GRANDORI, C. Jan. 8. 1951 [Jan. 23, 1950], No. 512/51. Class 122(i) [Also in Groups XXVIII and XXIX] In a concrete pump (see Group XXVIII), the piston comprises a disc 8 connected by a longitudinal member 11 to a disc 10 and packing 8<SP>1</SP>, 11<SP>1</SP> partly surrounds the discs 8, 10 and continues along the edges of the longitudinal member. The piston has a further longitudinal member 9<SP>1</SP> that is guided between longitudinal ribs 34 on the cylinder.
Patent GB-1412216-A (GB)
Title: Double-walled housings for internal combustion engines and  associated machinery
IPC: F02B77/13
Filed: 1973-01-04
Abstract: 1412216 Cooling IC engines; engine casings B KIRSCH 4 Jan 1973 618/73 Heading F1B The space between the two walls 1 and 2 of a housing for an air-cooled I.C. engine driving an electric generator or air compressor defines a cooling air passage 3, 4. The air inlet part 3 of the passage contains a combustion air intake pipe 5 and the air outlet part 4 an engine exhaust gas pipe 8. The engine and generator may be mounted in respective chambers 12 and 13 in the housing separated by a partition 11. Respective inlet and outlet opening 6, 6a and 7, 7a connect the chambers to the passage parts. An oil-bath filter 14 may be located in the pipe 5. The inlet pipe opening 9 may be co-planar with the passage opening 10, Fig. 1 (not shown). The air passage may have a sound-absorbing lining, contain flowdeflecting ribs or constrictions and define a serpentine flow-path.
Patent GB-1047151-A (GB)
Title: Improvements in or relating to yarn conditioning system
IPC: D06B17/00
Filed: 1964-01-07
Abstract: 1,047,151. Textile treating apparatus. ERBA MASCHINENBAU A.G. Jan. 7, 1964 [Jan. 9, 1963], No. 639/64. Heading D1L. In treating thread the thread is laid in the form of rings or loops on to an endless air permeable conveyer band to form thereon a thread material carpet consisting of continuous thread loops in staggered and overlapped relationship and the carpet of loops is turned upside down by changing the direction of movement thereof in order to permit easy draw off of the thread from the said band. In the embodiment shown thread material 12 is withdrawn from cops 11 and laid in overlapping thread rings or loops by coilers 9 on to a conveyer band 3. The latter conveys the material through steam chamber 2 in the form of a thread carpet 12a. Immediately on leaving the chamber 2 carpet 12a is turned through 180 degrees by means of carding roll 13a. The threads are then drawn off via rollers 14, 15 and wound up in cake form at 16. In a second embodiment the carpet of thread is formed on an auxiliary conveyer and turned through 180 degrees on to the conveyer passing into the treating chamber. In a further embodiment a second conveyer is arranged beneath the first in the treating chamber so that the carpet of material is turned through 180 degrees in passing from the first conveyer on to the second.
Patent GB-700311-A (GB)
Title: Improvements in or relating to methods for securing leads to electric capacitors
Inventor: JONES ERIC OWEN
IPC: H01G13/00
Filed: 1951-01-09
Abstract: 700,311. Making electric condensers. BRITISH INSULATED CALLENDERS' CABLES, Ltd. Jan. 8, 1952 [Jan. 9, 1951], No. 640/51. Classes 83 (2) and 83 (4) [Also in Group XXXVT] A method for connecting a stranded tinnedcopper wire lead 4 to tin foil tape 2 connected to one of the two electrodes of a roll-type condenser comprises folding the tape 2 twice, inserting the lead 4'into the lower fold and pressing the lead and tape together by welding electrodes 5 and 6 which form the jaws of a clamping device (not shown). An appropriate current is passed between the electrodes, thus welding the tin coating of the lead 4 to the tape 2, and the tapes to each other.
Patent GB-283524-A (GB)
Title: Improvements in differential gears for motor vehicles
IPC: F16H48/08
Filed: 1928-01-09
Abstract: 283,524. Mlinko, J. Jan. 12, 1927, [Convention date]. Differential gearing. - The casing 1 of the usual differential gearing upon a vehicle is driven through a lost-motion coupling so as to allow a limited amount of free overrunning of a road wheel to prevent skidding. A dog 4 upon the face of a wheel 2 driven by the engine projects into the path of a dog 5 carried by the casing 1, which is otherwise free. Multiple pairs of dogs may be used. In another form, a casing driven through worm gearing carries a dog proejcting radially inwards into the path of a dog upon the periphery of the differential casing.
Patent GB-987310-A (GB)
Title: Improvements in or relating to current metering arrangements
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: H01F38/38
Filed: 1963-01-07
Abstract: 987,310. Transformers. GENERAL ELECTRIC CO. Ltd. Dec. 30, 1963 [Jan. 7, 1963; March 12, 1963], Nos. 736/63 and 9744/63. Heading H1T. A device which is used in the metering of current flowing in a conductor and which comprises a coil wrapped round a non-ferromagnetic support, is arranged so that the coil is magnetically coupled to the current-carrying conductor without having to interrupt the flow of current. In one embodiment (Fig. 1) a resilient support 1, of insulating material, is clipped over a current-carrying conductor 5 and the ends 7, 8 of the coil 1 are led to a metering arrangement through a pole 9 fixed to the support. In a second embodiment two coil sections 28, 29 (Fig. 3) are embedded within semi-circular support limbs 30, 32 which are hinged together and which are urged into abutment at 39 by a spring 38 attached to the hinge 37. These embodiments may be modified by sealing the coil and support within a sleeve of plastic material to prevent ingress of moisture and, in the second embodiment, a gaiter may be arranged to enclose the hinged section of the support. The second embodiment may be modified further by either arranging the pole on one limb of the support to be adjacent the hinge or arranging that each semi-circular limb is provided with a pole; the poles being hinged together at a position remote from the support. In another modification, the coil may be mounted in a tube and arranged within another tube the tubes being bent to form a closed loop. The necessary opening may be achieved in much the same manner as in a Bourdon gauge by fluid under pressure. A third embodiment (Fig. 4, not shown) comprises three series connected coils embedded in a support, the coils being arranged so that the conductor may be located at equal distances from each of them. A further modification is described in which the support of the device is in the form of a helix having only one turn. In all the embodiments an isolating transformer or a radio transmitter may be mounted on the pole adjacent the carrier and connected to the coil.
Patent GB-644931-A (GB)
Title: Improvements in or relating to the treatment of rubber
Inventor: DAVEY WALTER CECIL
IPC: C08C19/08
Filed: 1948-01-10
Abstract: Natural rubber is obtained in a softened form by heating an acid aqueous dispersion of rubber containing a small proportion of a solid per-compound dissolved or dispersed therein and a substance which renders the dispersion stable to acid conditions. The per-compound may be an alkaline earth metal persulphate such as barium persulphate, an ammonium or alkali metal persulphate or perborate, or succinyl peroxide, or benzoyl peroxide.  Preferably 0.05 to 1.5 per cent based on the weight of the rubber is used. After treatment excess per-compound is destroyed with a water-soluble sulphite or hydrosulphite, hydroquinone or phenyl b -naphthylamine.  The dispersion may then be coagulated with polyvalent salts, ethyl alcohol, or boiling water, to give a softened rubber which may be dissolved in benzene, toluene, or carbon tetrachloride to give an adhesive.  The stabilizer may be of a non-ionic type such as saturated polyethylene glycol ethers of the formula RO(C2H4O)nH, where R is a straight-chain alkyl radical having 8-20 carbon atoms and n is at least 4, a condensation product of oleic acid and ethylene oxide, a polyethylene glycol phenyl mono-ether, an alkylated phenyl mono-ether of polyethylene glycol, or a polyalkylene ether of a partial sorbitol ester of stearic acid; or an aralkyl sulphonate such as the methyl isopropyl or isobutyl naphthalene sulphonates.
Patent GB-713564-A (GB)
Title: An improved device for locking a motor vehicle of the type provided with a gear shift lever mounted near the shaft of the steering wheel
Inventor: NILSSON CURT ALLAN
IPC: B60R25/00
Filed: 1952-01-10
Abstract: 713,564. Vehicle locking devices. WAZO-VERKEN AKTIEBOLAGET. Jan. 10, 1952, No. 807/52. Class 79(3) [Also in Groups XXV and XXXVII] In a vehicle locking device comprising a gear shift lever, the shaft of which extends parallel to the steering column housing the steering shaft, a housing surrounding the gear shift shaft and the steering column and being formed by two parts hinged together at one edge parallel to the shafts and capable of being clamped together at the other edge, and a lock mounted in one housing part and provided with a bolt movable into a recess in the gear shift shaft to lock same, the housing parts are formed with separate recesses for the gear shift shaft and the column and the housing parts are clamped together by screws, the parts being formed with a projection and a recess respectively where the screws bridge the parts to preclude direct access thereto. As shown the housing comprises the parts 11, 12 pivoted together at 13 and held together by screws 16 (see Group XXV) to embrace the steering column 1 and a tube 2 enclosing the shaft 3 operated by the gear shift lever (not shown). One part 12 carries a key operated lock 4, which in its operative position causes a detent 8 to pass through a hole 10 in the tube 2 and enter the recess 9 in the shaft 3 to lock the latter in an " in gear ". position, preferably reverse gear. The lock 4, when operative, renders inoperative a switch 21 controlling the vehicle ignition and controlled by a lever 24 (see Group XXXV). The screws 16 may be of the type formed with double heads, one head being polygonal and being removed after positioning and the other head being flat and cylindrical, the two heads being connected by a weak portion. The housing part 12 is formed with the projection 18 co-operating with the recess 17 in the part 11 where the screws pass between the parts.
Patent GB-866902-A (GB)
Title: Improvements in and relating to joints in pipes and closure members
Inventor: NOBLE WILFRED
IPC: F16L21/025
Filed: 1957-01-10
Abstract: 866,902. Container closures. BRITISH CERAMIC RESEARCH ASSOCIATION. Dec. 20, 1957 [Jan. 10, 1957], No. 941/57. Class 125(3). [Also in Groups XXVI and XXVIII] A spigot and socket pipe joint, which is also applicable to the fitting of a cap to a container, is formed by placing over the spigot 10 a sleeve 13 of flexible material having a patterned or rough material surface and a bead or ring 14 at one edge, and rolling the bead upon the sleeve until the turns so formed is thick enough to engage frictionally within the socket 12, so that when the joint is pushed home the bead continues to roll up on the sleeve without slipping, by virtue of the patterned or rough surface, until a fluid tight joint is formed. The end 13a of the sleeve may then be folded over the end of the socket 12 ; alternatively, it may have a preformed flange which is drawn into the space between the spigot and socket to form a second seal.
Patent GB-640403-A (GB)
Title: Improvements in or relating to the production of o-hydroxyphenyl glycerol ether
Inventor: BRADLEY WILLIAM
Filed: 1948-01-13
Abstract: a  : b  - Dihydroxy - g  - (2 - hydroxyphenoxy) - propane is prepared by (1) condensing together equimolecular proportions of catechol and glycidol in the presence of a nitrogen-containing organic base; or (2) condensing catechol monoacetate with glycidol in the presence of pyridine and hydrolysing the resulting a  : b -dihydroxy-g -(2-acetoxyphenoxy)-propane.  In either case, the reaction is initiated by warming, and the temperature is prevented from rising above about 110 DEG  C. by external cooling.  In method (1), the organic base may be pyridine, picoline, quinoline, dimethylaniline, a primary amine (e.g. ethylamine) or a secondary amine (e.g. dimethylamine).  In method (2), the hydrolysis may be effected by alkali, e.g. potassium hydroxide in ethyl alcohol.  An example is given of each method.  Specification 628,497 is referred to.
Patent HK-26682-A (HK)
Title: Timepiece
IPC: G04B37/05
Filed: 1982-06-17
Abstract: The retaining annulus (11) has the same non-circular shape as the movement (6). On two opposite sides it has internal shoulders which support the plate thread (13). On two other opposite sides it furthermore has two projections which rest on the side wall (3) of the back-dome (3,1), in such a way that an empty space (17) is left between the annulus and the back-dome. The latter is attached to the case body (2) in such a way that the overhang (2a) bears on the edge of the dial (7). <IMAGE>
Patent HK-54397-A (HK)
Title: Constant boiling compositions of fluorinated hydrocarbons
Inventor: SHIFLETT MARK B
IPC: A62D1/00
Filed: 1997-04-24
Abstract: Ternary mixtures of pentafluoroethane, difluoromethane and tetrafluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes, and as power cycle working fluids.