baber/WOPTO huggingface dataset:
Patent GB-463873-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/42
Filed: 1935-10-07
Abstract: 463,873. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., and DAVIES, L. J. Oct. 7, 1935, No. 27658. [Class 39 (i)] Two or more high-pressure metal-vapour discharge lamps are connected to the supply in parallel and are mounted within a common bulb, whose interior is coated with fluorescent material. When current is switched on owing to the differences which normally occur in lamp construction only one lamp works ; after running if the current is switched off, the previously running lamp will be of relatively higher starting resistance and the discharge will take place in the other lamp when current is switched on again. Deflecting means may be provided within the bulb so that a hot lamp causes a cooling current to flow over the other lamp.
Patent GB-699059-A (GB)
Title: Devices for the determination of the mobility of small particles
IPC: G02B21/26
Filed: 1951-11-26
Abstract: 699,059. Counting particles photo-electrically. NEDERLANDSE ORGANISATIE VOOR TOEGEPASTNATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN DE LANDBOUWN. Nov. 26, 1951 [Nov. 25, 1950], No. 27712/51. Class 40 (iii). The mobility of small particles, e.g. spermatoza, is determined by projecting a magnified image of the particles, produced by illuminating a thin layer of liquid containing them with an obliquely directed light, so that light is diffused and reflected through a diaphragm, on to a photo-sensitive surface which responds to traverses of the diaphragm aperture by individual particles, these responses being recorded and counted. As shown, light from a source 1 passes through a cell 13 containing copper sulphate which absorbs infra-red, and is then directed by a mirror 9 into a dark-field condenser 3 which directs light obliquely on to the specimen. Light dispersed from individual particles is passed through a microscope 11, the objective of which acts as a first diaphragm, a rotating chopping plate 12 and a second diaphragm 4 and on to the cathode of a photomultiplier tube, mounted in a housing 5. The effect of the microscope objective is to cut-off direct light from the dark field condenser, the particles appearing light against a dark background. The second diaphragm consists of a plate in which are a number of apertures of different sizes, any of which may be interposed in the light beam. If a large aperture is chosen in which.several traverses by particles are taking place simultaneously, the concentration of the sperms may be determined by causing an amplifier to record each time the light impulse rises above the threshold value. The specimen slide is mounted on a table which may be manipulated by rods extending to the outside of a constant temperature enclosure housing the microscope. To ensure that the thickness of the specimen is constant it is placed on the slide under a haemocytometer cover glass separated by a ring of wire from the slide.
Patent GB-866535-A (GB)
Title: An improvement in devices for controlling from outside a mechanical or electrical member contained in a pressure tight container
IPC: H01H9/02
Filed: 1957-09-03
Abstract: 866,535. Switch cases; fluid-actuation of switches. PANERAI, G., and PANERAI, M. Sept. 3, 1957 [Nov. 14, 1956], No. 27735/57. Class 38 (5). A switch 11 mounted within a box 6, partly or wholly surrounded by a flexible sealing envelope 1, has an operating member 10 which passes through the wall of the box and is in contact with the envelope. The member 10, which is in the form of a leaf-spring, presses outwards with a force gauged to the maximum pressure expected to be applied by a fluid outside the box. A spring-loaded plunger 13 presses inwards against the member 10 with a force which can be varied by rotating the threaded sleeve 18 so that the switch can be actuated by an additional inward force applied to the plunger or by an increase in pressure of the surrounding fluid. In another form, Fig. 2 (not shown), the leaf-spring 10 is replaced by a spring-loaded, axially-movable member 21.
Patent GB-1181039-A (GB)
Title: Process for the Production of Urea
IPC: C07C273/04
Filed: 1968-06-11
Abstract: 1,181,039. Urea synthesis. SNAM PROGETTI S.p.A. 11 June, 1968 [14 Dec., 1967], No. 27796/68. Heading C2C. A process for the production of urea comprises feeding carbon dioxide and ammonia to a reactor, reacting them to produce an effluent aqueous solution of urea contaminated with ammonium carbamate, splitting the latter in a splitter so as to convert it into carbon dioxide and ammonia and produce an aqueous solution of urea substantially free from ammonium carbamate, and recycling to the reactor in the gaseous phase and at substantially the same temperature at which splitting was effected the carbon dioxide and ammonia produced in the splitter, the recycling being effected by entraining the gases by means of an ejector in the ammonia and/or carbon dioxide which is fed to the reactor. The temperature and pressure in the reactor may be 160-220‹ C. and 130- 220 kg. cm.<SP>-2</SP> respectively and, in the splitter, 160-220‹ C. and 70-200 kg.cm.<SP>-2</SP> respectively.
Patent GB-1482728-A (GB)
Title: Electronic switching assembly
IPC: H04Q3/52
Filed: 1975-07-02
Abstract: 1482728 Switching assembly INTERNATIONAL STANDARD ELECTRIC CORP 2 July 1975 [2 July 1974] 27824/75 Heading G1A In a switching assembly crosspoint devices are included which each comprise a light emitting diode, a phototransistor and controllable liquid crystal element therebetween to interrupt the light as required. The shutters may be a nematic liquid crystal elements 20 mounted in an array between sources 11-16 mounted in further plates 18, 38. To provide the matrix between a plurality of inlets 10 and a plurality of outlets 57, the crosspoints are formed in two stages of light channels, with second array of sources 30 mounted on the back of plate 38, a further liquid crystal element array 40, and second array of detectors 50. Selection of shutters to be opened is via control terminals 27, 47. The sources may be GaAs light emitting diodes.
Patent GB-262738-A (GB)
Title: Process for elaborating the products arising during the liquefaction of coal by hydrogenation
IPC: C10G21/00
Filed: 1926-11-05
Abstract: 262,738. Deutschen Bergin-Akt.-Ges. f³r Kohle-und Erdolchemie. Dec. 11, 1925, [Convention date]. Mineral and tar oils, purifying.-The products of the destructive hydrogenation of coal are, after removal of water and low-boiling constituents, mixed with aliphatic hydrocarbons such as gas oil and allowed to stand, whereby first the solid matters such as unacted on coal and its inorganic impurities, and then the asphalt settle out. In an example, the products of the destructive hydrogenation of coal are freed from water and other ingredients distilling off up to 280‹ C., and 100 kilograms of the still residue are briskly stirred at 200‹ C. with 20 kilograms of raw petroleum. After standing 1 hour the liquid is decanted from the 40 kilograms of hard asphalt and solid ingredients settled out. After 3-5 hours more 40 kilograms of soft asphalt free from solid impurities deposit .40 kilograms of a thin reddish brown oil poor in asphalt are run off and fractionally distilled into light lubricating oils and gas oils. Residual gas-oil may be removed from the asphalt &c, by distillation with steam. The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of other bituminous materials containing asphalt. This subject-matter does not appear in the Specification as accepted
Patent GB-1533220-A (GB)
Title: Apparatus for pyrolysis of hydrocarbon products
IPC: C10G9/34
Filed: 1977-07-04
Abstract: 1533220 Apparatus for hydrocarbon pyrolysis GOSUDARSTVEN N I ENERGETICHE INST IM G M KRZHIZHANDV 4 July 1977 27838/77 Heading C5E An apparatus for the pyrolysis of hydrocarbons, e.g. to give low molecular weight olefins, comprises a horizontally split casing 1 containing a heat carrier 2, at least one injector 4 having a nozzle 5 for feeding a jet of hydrocarbons into the casing mounted in the upper part of the casing so that the nozzle is at or spaced apart from and directed towards the surface of the heat carrier, at least one outlet 6 in the upper part of the casing for removing pyrolysis products and a heat supply 7 within the casing. The lower part of the casing may be rotatable about a vertical axis driven by a rotary drive. The apparatus may comprise two or more zones separated by baffles each having a feed injector. A suitable heat carrier is a melt of a heavy metal such as bismuth.
Patent GB-780832-A (GB)
Title: Improvements in or relating to static electric switches
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H03K17/68
Filed: 1955-09-30
Abstract: 780,832. Electric digital-data-storage apparatus. STANDARD TELEPHONES & CABLES, Ltd. Sept. 30, 1955, No. 27892/55. Class 106 (1). [Also in Group XXXVIII] In a circuit for establishing a connection between two sets 'of circuits via two stages of switches, one set of circuits is divided into groups 11 ... 14 to 41 ... 44, and each is connected to a corresponding switch HS11 ... 44 and each circuit W, R is multipled to a switch WGX1 ... 4, RGX1... 4 in turn multipled to a group of switches HS11 ... 14 &c. The switches WGX1 ... 4 are multipled to switches RGX1 ... 4 and control circuits are arranged for operating pairs of switches for setting up the desired transmission path. The switches are of a type having two transmission electrodes and a control electrode transmission occurring when a suitable potential is applied to the control electrode. The invention is described as applied to a magnetic storage drum DM to which information is applied through writing signal source W to a magnetic read/ record head 11 ... 44 from which information can also be fed out through reading amplifier R. Assuming it is desired to write through head 11 associated distributers WGX, WHX are set into the position 1, WGX1 closing directly the switch WGS1. The distributers also cause an output from gate G1 which passes through G2 to close the switch HS11. In a similar manner reading can take place simultaneously from head 44 by operating the distributers RGX, RHX so that potentials are applied to the leads RGX4,RHX4 causing through gates 93, 94, switch HS44 to close. The arrangement allows information to be written into the store through any head in a group and at the same time information can be read from a head in one of the other groups. In a practical embodiment, Fig. 2, the switch WGS1 consists of a pair of symmetrical transistors A, B as described in Specification 780,833, [Group XL (c)]. Normally the switch remains open due to a positive potential on the lead WGX 1. The switch HS11 comprises a symmetrical transistor C which is normally held in the off or open position by the connection of the base to a positive potential. When it is desired to write into head 11 a negative potential on lead WGX1 causes the transistor A,B to conduct and the switch WGS1 closes. Diodes MR6, MR9 are normally biased off, but the negative potentials on lead WGX1, WHX1 bias off diodes MR4, MR5 so that diode MR6 conducts, the base of transistor C falling so that it can conduct and switch HS11 closes. By applying potentials on the lead RGX1, RHX1 information could have been read from head 11 out through amplifier R. Protective circuits may be provided for ensuring that two head switches in one group are not closed at the same time, also that the write and read group switches in one group are not closed together. Switches of the type described in Specification 734,345, [Group XL (c)], employing two anodes and a single cathode may be used. Specification 780,831 also is referred to.
Patent GB-464328-A (GB)
Title: Improvements in or relating to the manufacture of hydroarylated aromatic hydroxy compounds and derivatives thereof
IPC: C07C37/18
Filed: 1935-10-09
Abstract: Aromatic monohydroxy compounds or their derivatives, such as ethers are condensed with hydroaromatic compounds containing at least one halogen atom and at least eight carbon atoms in the molecule, in the presence of di- or trivalent base metals.  In examples, o-cresol is condensed with a mixture of monoand dichlordecahydronaphthalene, dichlordecahydronaphthalene and with abietylchloride, --the latter being obtained from resin alcohol and thionylchloride.  Granulated zinc is used for the condensation and the o-cresol may be replaced by xylenols, naphthols or hydroxyanthracenes or phenanthrenes. Brominated hydroaromatic compounds may be employed and hydroaromatic compounds containing iodine are mentioned.  Specified hydroxy compounds and derivatives are ethylphenols, thymol, carvacrol, hydroxydiphenyls, anisol, phenetol and diphenyl ether.  Magnesium and cadmium are condensing agents also mentioned.  Specification 449,607 is referred to.  Examples have been furnished under Sect. 2 (5) of products obtained by condensing monochlordecahydronaphthalene with anisol, diphenylether and hydroxyanthracene.
Patent GB-714030-A (GB)
Title: Improvements relating to air cleaner units
IPC: F24F13/28
Filed: 1952-11-07
Abstract: 714,030. Filtering gases. GENERAL MOTORS CORPORATION. Nov. 7, 1952 [Nov. 28, 1951], No. 28053/52. Class 8 (2). An annular air filter 30, Fig. 1, is held in a casing by legs 46, 47 stamped out from spokes 45, Fig. 2, of a circular retainer plate 40, and the spokes 45 provide full radial support for silencing material 38 carried between the plate 40 and a casing cover 32. In a modification the legs are tapered and abut the inner portion only of the annular filter. The filter casing is surrounded by an annular dirt-laden air inlet 37 formed by a recessed upper face 11 of an annular air silencer unit 10, and which also provides an oil pump 12 at the base of the filter casing.
Patent GB-233370-A (GB)
Title: Improvements in or relating to the production of aqueous emulsions of rubber and the like
IPC: C08J3/03
Filed: 1923-11-07
Abstract: 233,370. Pratt, W. B. Nov. 7, 1923. Emulsions, making; medicines for internal use; medicaments for external application.-An aqueous dispersion of previously coagulated rubber &c. is made by incorporating water into a rubber mass, and then submitting the mass to continued stretching with the gradual addition of water until a paste, and eventually a liquid is obtained. If the rubber is one containing a large proportion of water-soluble substances, e.g. sprayed rubber, plain water may be added, but in most cases the penetration of the mass by the water is facilitated by the use of a substance such as glue, albumen, casein, gum arabic, sugars, gluten, starch, dextrin, or colloidal clay, which may be added to the water or to the rubber. The final dispersion is facilitated by the addition of soap, saponin, or like lubricant to the water. According to an example, 27.5 parts of glue are milled into 550 parts of smoked sheet. Water sufficient to make the total water up to 55 parts is added and the whole is mixed until the water is all absorbed in the rubber. The mixing must be such that the rubber is subjected to a stretching action to assist the water to penetrate between the globules of rubber. A solution of one part saponin in two parts of water is gradually added with continued mixing until a putty-like condition is reached. Further solution is then added until the mixture contains 27.5 parts of saponin. The mass is further diluted gradually with 250 parts of water, when a smooth paste is obtained, which may be stored or diluted. Reclaimed rubber, mineral and vegetable oils, substitutes, pigments, vulcanizing agents, accelerators, &c. may be added to the rubber prior to its dispersion. The paste or diluted " milk " may be coagulated or dried and vulcanized, and may be used for surgical dressings and in the preparation of splints, and for this purpose may be mixed with medicaments; it may form the base of a chewing gum. Specification 217,612 is referred to.
Patent GB-279506-A (GB)
Title: Manufacture of diacidyl-derivatives of naphthalene and acenaphthene
IPC: C07C49/788
Filed: 1927-10-24
Abstract: 279,506. I. G. Farbenindustrie Akt.- Ges. Oct. 23, 1926, [Convention date]. Diacidyl derivatives of naphthalene and acenaphthene are prepared by treating the monoacidyl derivative with an aromatic or aliphatic acid choride in the presence of aluminium chloride. As starting material may be employed the aluminium chloride compound of the monoacidyl derivative obtained in the manufacture of the latter from the hydrocarbon. A diluent may be present. The products are useful intermediate for the preparation of vat dyestuffs. According to the examples (1) a-benzoylnaphthalene is heated with benzoyl chloride and aluminium chloride, the product decomposed with water and after washing with caustic soda, crystallised from benzene; 1 : 5-dibenzoylnaphthalene separates out, whilst from the mother liquor its isomers, mainly 1 : 8-dibenzoylnaphthalene, can be isolated; (2) the treatment of 5-benzoylacenaphthene; the reaction may be effected in carbon disulphide solution ; (3) diacetylacenaphthene is prepared by slowly adding a carbon disulphide solution of aluminium chlorideacetyl chloride compound to the aluminium chloride compound of 5-acetylacenaphthene and heating with more aluminium chloride; the product is decomposed with water, the carbon disulphide steam distilled away from the residue crystallised from alcohol.
Patent GB-149872-A (GB)
Title: Improvements in balancing mechanism for windows and the like
IPC: E05D13/00
Filed: 1919-11-14
Abstract: 149,872. Sidwell, F. A., and Jackson & Co., W. Nov. 14, 1919. Sashes balanced by springs.- In a window 1 which is balanced by a helical spring, fusee barrel, and cord 4, the spring 8 is made of small diameter and great length and is preferably housed in a casing 9, as shown, with lubricant. A brake band acts on the fusee barrel, being operated by a pin 15, a handle 16, and cam-surfaces on the handle and on a fixed sleeve.
Patent GB-802679-A (GB)
Title: Improvements in or relating to power assisted steering gear
Inventor: LEESE DOUGLAS SIMS
IPC: B62D5/06
Filed: 1954-10-01
Abstract: 802.679. Vehicle power steering. HYDROSTEER, Ltd. Sept. 30, 1955 [Oct. 1, 1954], No. 28354/54. Class 79(5) In a power-assisted steering gear the drop arm 4 is coupled to an idler arm 10 by a link 11 comprising two relatively movable parts of a fluid control valve 12 and a track rod section 5 is pivotally connected at 9 to the idler arm 10 and at 8 to a supplementary arm 17 pivotally mounted on the drop arm 4. As shown in Figs. 1 and 2 the arm 17 is carried by a rubber bush 19<SP>1</SP> on the drop arm 4, and the section 5 is connected by end sections 6, 7 to the steerable wheels (not shown). In operation rotation of the column 2 causes compression of the bush 19<SP>1</SP> to actuate the valve 12 for power injection into the gear at a suitable point (not shown). In a modification, Fig. 4, the arm 17 is carried by a boss 20 on the arm 4 so that the arms 4, 17 are pivotable about the same axis.
Patent GB-937534-A (GB)
Title: Record card controlled signal generator
IPC: G06K7/016
Filed: 1962-07-24
Abstract: 937,534. Statistical apparatus. NATIONAL CASH REGISTER CO. July 24, 1962 [Aug. 28, 1961], No. 28395/62. Class 106 (1). Apparatus for producing timing signals as a record card 10 passes through a reading station 75 comprises a table 25 having slots 25a respectively corresponding to the columns of the card and a plurality of photo-voltaic cells S 1 -S 9  respectively associated with a group of consecutive slots 25a by means of light guides (not shown). As the slots 25a are successively uncovered during the passage of the card 10, each cell S 1 -S in turn receives an incrementally increasing amount of light from lamp 50 through the associated group of slots 25a. Cells S 1 -S 9  are connected in parallel through transistor amplifiers to the primary winding of a transformer 111, Fig. 4, which differentiates the voltage steps from each cell and provides a clock pulse for each column of the card as it passes through the reading station. The card 10 is fed by rollers 12 on to table 25 which is then advanced by a pusher 35.
Patent GB-1146254-A (GB)
Title: Captive-bolt assemblies
IPC: F16B41/00
Filed: 1967-06-20
Abstract: 1,146,254. Bolts. UNITED-CARR Inc. 20 June, 1967 [15 July, 1966], No. 28419/67. Heading F2H. In a bolt assembly comprising an apertured member 22 with a bolt 15 extending through said aperture perpendicular to said member 22, the bolt is held in position by a bolt retainer 20 formed of resilient sheet metal and comprising an annulus 20a cut and bent to provide circumferentially spaced resilient teeth 20c, each of the teeth having an edge 20h of helical form, the helix being of opposite direction to that of the threads 15c of the bolt shank so that the teeth diagonally engage the crests of the bolt threads. When the bolt retainer has been positioned over the shank of the bolt any face tending to remove the retainer from the shank will embed the teeth into the crests of the bolt threads. Flexibility of the teeth is increased by the provision of slits 20f at the base of the teeth.
Patent GB-246802-A (GB)
Title: Improvements in or relating to lubrication of engines
IPC: F01M1/04
Filed: 1925-01-12
Abstract: 246,802. Renault, L. Jan. 29, 1925, [Convention date]. Preventing escape of oil from cam -shaft casings; force-feed lubricating.-Escape of oil through the joints and openings of the cam-shaft casing 4 of an internal-combustion engine having overhead valve-gear is prevented by the provision of a turbine pump 11, Fig. 4, driven by the camshaft 5 and creating a partial vacuum inside the casing 4. The pump 11 may be keyed on the shaft 5 or may be driven at an increased speed through a gear train 16, 17, 19, 20. Oil and air sucked from the casing 4 by the pump is discharged into the crank case through a channel 22. Oil is supplied from the crank case by a pump through pipes 3, 28, Fig. 5, to the interior of the shaft 5 at the other end, whence it passes through holes 30 to lubricate the mechanism. Surplus oil is withdrawn by a turbine pump 23 mounted at the end of the shaft and is discharged into the crank case through a pipe 27 surrounding the pipe 3.
Patent GB-400667-A (GB)
Title: Improvements in safety devices for projectile fuzes
IPC: F42C15/16
Filed: 1932-01-22
Abstract: 400,667. Projectile fuzes. ALIQUO, F., 138A, Via Emanuele Filiberto, Rome. Jan.. 22, 1932, No. 28537/33. Convention date, Jan. 23, 1931. Divided on 400,612. [Class 9 (i).] A centrifugally operated safety device comprising a spiral member 1, Fig. 1, adapted to rotate a screw spindle 3 to release a device such as a centrifugal bolt 6 is delayed in operation until the projectile has left the gun barrel by a brake 8 operated by inertia and the pressure of a spring 12. In a modification, Fig. 2, the spiral member 1 drives the spindle 3 through the intermediary of a sleeve 14 feathered to the spindle 3, and the braking disc 15 is pressed back by air pressure admitted by a passage 16 in the nose of the fuze body 2. The centrifugal bolt 6 released by the screwspindle 3 carries a firing-pin 10 into line with a fixed percussion cap 11 ; or the percussion cap is carried by the centrifugal bolt and the firing- pin is fixed. A spring 13 is disposed in compression on one side of the bolt as shown, or in tension on the other side. A detent may be provided to prevent the return of the centrifugal bolt when once it has moved out.