baber/WOPTO huggingface dataset:
Patent GB-369975-A (GB)
Title: Lubricating oils and method of producing same
IPC: C10G17/06
Filed: 1930-12-29
Abstract: A process for making paraffin-base lubricating oils of low cold test consists in distilling the crude oil without overheating, and treating the resulting distillate first with sulphuric acid to remove tarry and asphaltic materials, then with decolorizing clay, removing the clay, and chilling the oil to from -20 DEG  to -60 DEG  F. and separating the wax thus precipitated.  Crude paraffin-base oils are slowly distilled under low pressure with a large volume of steam, whereby distillates are obtained which are free from crystalline wax. The distillate is stored, and after ageing is treated at 115 DEG  to 125 DEG  F. with concentrated sulphuric acid, at which temperature asphalt is not dissolved.  The purified oil is separated from the sludge, and after standing is mixed and heated with decolorizing clay suspended in oil or water.  When decolorization is effected the mixture is diluted with petroleum naphtha and passed through a pressure filter to remove the clay. The filtrate is further diluted with naphtha, and the solution is slowly chilled to 10 DEG  F. Thereafter chilling is effected more rapidly, e.g. by the expansion of ammonia, to produce a temperature of from -20 DEG  to -60 DEG  F. The precipitated wax is removed by filtering or centrifuging.  The solution of dewaxed oil is then treated with low pressure steam at a temperature not exceeding 500 DEG  F. to remove the solvent, an oil having a cold test of from -5 DEG  to 10 DEG  F. remaining. Specification 259,553, [Class 91, Oils &c.], is referred to.
Patent GB-376727-A (GB)
Title: Improvements in or connected with electrodes and other metal elements for vacuum electric devices
IPC: H01J19/30
Filed: 1930-12-30
Abstract: Metal elements of vacuum electric devices such as incandescent lamps and thermionic valves are formed of an alloy containing at least 90 per cent of nickel and at least 0,5 per cent of silicon.  The nickel may be replaced wholly or partly by cobalt. Other metals including titanium, vanadium, and zirconium may be added, the silicon forming not more than 6-7 per cent of the alloy and at least 40 per cent of the metals added to the nickel.  The alloys withstand high temperatures, are not readily oxidized, are wet by molten glass, are free from occluded gases and withstand the erosive action of electron streams.  The ductility and toughness may be improved by the addition of manganese, 5 per cent being sufficient.  The thermal and electrical conductivity may be reduced by adding copper, iron, or tungsten.  Magnesium may be added to reduce the gas content. Sulphur, carbon, and phosphorus are excluded.  Reference has been directed by the Comptroller to Specifications 278,454, 279,890, 295,971, 302,394, 330,401, 334,460, [all in Class 82 (i), Metals, Extracting &c.], and 355,083.
Patent GB-888250-A (GB)
Title: Improvements in or relating to fluid seals for vessels
Inventor: WUSTHOFEN ADOLF
IPC: F16J13/08
Filed: 1960-11-18
Abstract: 888,250. Joint-making packings. BOPP & REUTHER G.m.b.H. Nov. 18, 1960, No. 39741/60. Class 122 (3). [Also in Groups XVIII and XXIX] A main seal 5 and a separate auxiliary seal 7, Fig. 1, are provided for mounting a flangeless cover 4 to a flangeless casing 1 of a vessel for fluids, the seal 7 being located on that side of the seal 5 remote from the interior of the vessel. The cover is retained in the casing by a segmented ring 3 engaging a groove in the casing. The seal 7, of resilient material, is held in place partly in a groove at the edge of the cover 4 by an auxiliary cover 9 bolted thereto and bearing on the seal directly or, as shown, through the interposition of a ring 8 of metal or other non-elastic material. In a modification, Fig. 2, the cover is secured to the casing by bolts 11 provided with auxiliary seals 18, the main seal being an 0-ring 17 in a groove in the casing and an auxiliary seal 12 of circular cross-section being located in a notch 14 at the adjoining edges of the cover and of the end face of the casing and retained by a ring 16 bolted to the casing.
Patent GB-1284456-A (GB)
Title: Surface active compounds
IPC: C09K23/00
Filed: 1969-08-08
Abstract: 1284456 Surface-active alkyl oligosaccharides ROHM & HAAS CO 8 Aug 1969 [3 Sept 1968] 39747/69 Heading C3U [Also in Divisions C2 and C5] The Specification is directed to mixtures of surface active alkyl oligosaccharides having the formula RO(C 6 H 10 O 5 ) m H where R is an alkyl radical ranging from C 8 H 17  to C 22 H 65 , the radical (C 6 H 10 O 5 ) represents a glycosyl unit, m is at least 2 but averages 3 or more, and one of the glycosyl units is connected through its number one carbon atom, via the oxygen atom shown in the formula above, to the group -R. According to an example, a mixture of glucose, n-butanol and concentrated sulphuric acid was heated under reflux in a flask with an attached water separator, using hexane to cause the water to separate in the trap. After the theoretical amount of water had been collected, lauryl alcohol was added and the excess butanol was removed by distillation. At the completion of the alcohol interchange the reaction mixture was neutralized with sodium hydroxide solution. It contained 20À5% lauryl alcohol, 41% lauryl glucoside, 14% lauryl disaccharide and 24À5% of lauryl tri-, tetra-, penta- and higher-oligosaccharides in disclosed amounts. A further example describes the preparation of a mixture containing octadecyl oligosaccharide having an average of 12À5 condensed saccharide units. Other examples disclose mixtures containing alkyl oligosaccharides in which the alkyl group of the components is C 12 H 25 , C 14 H 29 , C 16 H 33 , C 18 H 37 , mixed C 12 H 25  and C 13 H 27 , and mixed C 12 H 25 , C 13 H 27 , C 14 H 29  and C 15 H 31  radicals.
Patent GB-1244872-A (GB)
Title: Vehicle suspensions
Inventor: CROUCH STEPHEN JOHN
IPC: B60G17/015
Filed: 1968-08-20
Abstract: 1,244,872. Preventing lateral canting; railway vehicle suspensions. ROVER CO. Ltd. 19 Aug., 1969 [20 Aug., 1968], No. 39773/68. Headings B7D and B7L. A multi-wheel two track vehicle has a suspension comprising springs 5, which may be hydro-pneumatic, and hydraulic struts 2, the struts on each side of the vehicle being connected to one of a pair of common control units disposed on a respective side of the vehicle, each control unit serving to add or withdraw fluid to or from its associated struts so as to resist or counteract roll and each control unit comprising an electrical transducer, or, as shown, a pendulum-operated device 8, 9 for controlling valves (12) (Fig. 2, not shown), to control the fluid flow to or from the struts. The springs 5 are connected through damping restrictions (6) to their respective struts and the struts on each side of the vehicle are interconnected through a damping restriction (7). Each valve (12) has direct connection with its associated strut. The pendulum-operated device includes a rotary damper (13) (Fig. 3, not shown) whose body is connected to the suspension linkage of e.g. a front wheel of the vehicle, by a link (14). A leaf spring (15) connects the body of the damper to the free end of the pendulum arm 8. The pivotal axes of the pendulum arms may be horizontal and parallel or inclined to the vehicle longitudinal axis, or may be inclined to the horizontal. The arm 8 may be horizontal. Each strut may be in the form of a piston-and-cylinder unit, or may incorporate a diaphragm. While changes in load at the front of the vehicle will lead to automatic correction of the suspension height at the front, due to movement of the suspension-to-damper link (14), no such correction will occur under changing loads at the vehicle rear. To overcome this, an additional spring 16 and strut 17 act on the mid-point of the rear axle, the length of the strut 17 being controlled by a valve V sensing the distance between the body work and the axle. The vehicle may be a saloon car, rail vehicle or track-layer. The control units may be as described in Specification 1,244,873.
Patent GB-1160950-A (GB)
Title: Electric Switch Control Devices and Hand Drying Appliances
IPC: A47K10/48
Filed: 1968-08-20
Abstract: 1,160,950. Hand driers. WARMEX Ltd. 20 Aug., 1968, No. 39783/68. Heading A5R. [Also in Division H1] A hand drier comprises a short metal cabinet 1 containing a roll of towelling T, preferably paper towelling, and having hot air blown out of its bottom for a predetermined length of time after operation of a switch. The lid 2 (shown open) is normally closed and when pressed down even further depresses crank 21 on spindle 18 which causes a switch (see Division H1) to close which starts the hot air and after a predetertmined length of time the switch opens stopping the hot air. An auxiliary switch 23 is operable to obtain a supply of hot air independently of the above switch.
Patent GB-1438527-A (GB)
Title: Tobacco manipulating machines
IPC: A24C5/18
Filed: 1973-08-22
Abstract: 1438527 Feeding tobacco ROTHMANS OF PALL MALL CANADA Ltd 16 Aug 1974 [22 Aug 1973] 39875/75 Heading A2C Tobacco is showered onto a conveyor 22 by directing upwardly a stream of tobacco 46 towards a plurality of rotating discs 36. Each disc has air-permeable, tobacco impermeable walls enclosing an interior which is connected to source of vacuum. A fixed shoe 42 is provided in the interior of the disc at that part of the discs are adjacent the conveyor tobacco thus initially adheres to the disc under the action of the internal vacuum but is released onto the conveyor as rotation of the disc brings the tobacco opposite the vacuum shoe 42. The conveyor is also air-permeable so that an upwardly applied air-stream causes tobacco to adhere to the conveyor.
Patent GB-1198646-A (GB)
Title: Improved Miniature D.C. Motor or Dynamotor.
IPC: G01P3/46
Filed: 1967-09-05
Abstract: 1,198,646. D.C. motors and dynamotors TOKYO KAGAKU K.K. 5 Sept., 1967 [19 Dec., 1966], No. 40452/67. Heading H2A. A miniature D.C. motor or dynamotor comprises mounted within a magnetic case 1 a rotor 4 having on a common rotary shaft 5 a plurality of magnetic polepieces 6 each carrying at least two windings 7, 8 corresponding windings of each polepiece being connected to a respective commutator 9, 10 having brushes 11, 12 and mounted on the shaft, a stator consisting of a plurality of permanent magnets 3a, 3b each so mounted within the case that one of its poles confronts the polepieces, and a control circuit 13 including an amplifier whose input and output 14, 15 are connected to respective brushes 12, 11 and which maintains within limits the shaft speed substantially constant. The motor is powered by a D.C. source 16, and the brushes 12 in addition to supplying the control circuit may also provide a generator output for, e.g., teaching use. There may be more than two windings 7, 8 and corresponding commutators, and instead of the separate coils shown the windings may be in layers one upon the other, or wound in parallel.
Patent GB-1153189-A (GB)
Title: Drier
IPC: F26B13/14
Filed: 1966-09-09
Abstract: 1,153,189. Web drying apparatus. SVENSKA FLAKTFABRIKEN A.B. 9 Sept., 1966 [23 Sept., 1965], No. 40470/66. Heading F4G. Apparatus for drying a web of material 2 comprises a Yankee drier roll 1 about which the web is conveyed and hot gaseous medium is directed thereover from nozzles or apertures 9 in plenum chambers 4. Each chamber having a fan 10 with associated filter 11 to direct air into the path of flue gases generated by a burner 15 within a casing 17 so as to heat the air flow by admixture with the flue gases.
Patent GB-861276-A (GB)
Title: An improved electric vacuum melting furnace
IPC: H05B6/36
Filed: 1959-12-01
Abstract: 861,276. Electric induction furnaces. ALLMANNA SVENSKA ELEKTRISKA A. B. Dec. 1, 1959 [Dec. 2, 1958), No. 40726/59. Class 39 (3). In an electric vacuum melting furnace having insulated coil turns 1 corona is prevented by surrounding the insulation 2 with spaced conductive layers 3, each of which is connected at 4 to earth or to a potential lying below the critical corona limit. An earthed conductor 4 is also fixed to a conducting layer surrounding the connection lead 5.
Patent GB-1272959-A (GB)
Title: Improvements in or relating to bonding leads to a workpiece
Inventor: CUSHMAN ROBERT HOLBROOK
IPC: B23K20/10
Filed: 1969-08-14
Abstract: 1,272,959. Welding by pressure. WESTERN ELECTRIC CO. Inc. 14 Aug., 1969 [16 Aug., 1968], No. 40750/69. Heading B3R. In bonding ultrasonically or by thermocompression, a plurality of leads to bonding sites on a workpiece, the workpiece is supported on a support means and pressure is applied by bonding means to the leads and the bonding means and/or support means are adapted and arranged to compensate for irregularities in the leads and/or workpiece whereby the leads are bonded to their sites simultaneously under substantially equal pressures. The irregularities may take the form of variations in lead thickness, land area thickness, lack of parallelism, workpiece warpage or workpiece waviness. In an embodiment, a substrate 23, Fig. 6, having non- parallel upper and lower surfaces is supported on a support 24 and bonding of leads 26 to lands 27 is effected using a bonding tip 36 having a chamber 37 filled with a viscous medium 38 such as solder maintained molten by a cartridge heater 43. The chamber is sealed by a diaphragm 39 provided with optional bonding pads 41, e.g. formed by etching and when a pad 41 engages the highest lead 26 the diaphragm flexes to permit engagement of another lead with another pad. The tip 36 may be displaced into workpiece engagement by an air cylinder. In thermocompression bonding in which the workpiece only may be heated or in ultrasonic welding the viscous medium may be grease. The tip may be used in cases of variations in the height of the leads due to substrate warpage or waviness of substrate. A base having a chamber filled with a viscous medium and sealed by a diaphragm carrying support pads may be employed to support the workpiece. In some bases only the base need be employed. A base may be provided with a separate support member, providing a pair of pads, resting on the diaphragm or backing pins 63, Fig. 14, located by an apertured plate 67 may be used. In the latter case the viscous medium 38 may be replaced by a ductile material such as aluminium, indium, lead, tin, zinc, neoprene rubber or Teflon (Registered Trade Mark). The bases described having the separate support member or pins may be used as a bonding tip.
Patent GB-1432653-A (GB)
Title: Magnetic bubble devices
IPC: G11C11/14
Filed: 1973-08-30
Abstract: 1432653 Magnetic storage arrangements PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Aug 1973 [2 Sept 1972] 40832/73 Heading H3B A magnetic sheet Z, Fig. 1, has two propagation paths A, B for domains arranged sufficiently adjacent over a portion of their lengths that domains in one path A are propelled by the repulsive forces of driven domains in the other path B. The repulsively-propelled domains take up positions approximately equidistant from the driven domains, as shown, driving being effected by a synchronous combination of a domain generator C and a domain destructor G. In a modification, Fig. 2, both the driven and repulsively-propelled domain paths J, I are closed loops including domain generation and destruction units H1, L, a drive unit H, and a domain detector L. This arrangement is equivalent to a pair of gear-wheels, the relative lengths of the two closed paths determining the ratio between a complete rotation of a driven domain and a complete rotation of a repulsively propelled domain. In a modification of Fig. 1, some of the domains from a generator C, Fig. 3, may be routed into a propagation path D by switches E and F so as to by-pass the interacting portions of paths A and B. A logic arrangement is shown in Fig. 4 in which domains in a path A2 are normally propelled into a path A3 by domains driven in a closed loop path B2 by a drive unit H2. A single domain is also repulsively propelled in a closed loop path Q by the domains in path B2, and whenever this single domain passes a detector K a switch E2 becomes operative to divert the propelled domains from paths A2-A3 to paths A2-A4. A three stage counter is shown in Fig. 5 in which driven domains in a closed loop path B3 propel a single domain in a closed loop path Q1. Each time the single domain becomes adjacent a larger loop path B4 it moves the domains therein forward by one domain location, which in turn similarly displaces a repulsively-coupled single domain in a path Q2. A further reduction stage comprises the combination of path Q2 with paths B5 and Q3. A domain transportation system is described, Fig. 6, in which domains representing the digits "1" and "0" respectively move along paths S1, S2 due to interaction with driven domains in closed loop paths B6, B7. The pattern in paths S1, S2 may be made visible by translating the information content into a pattern of domains moved along paths PL2-PL11, Fig. 7, by a continuous series of driven domains in a path PL1, the Kerr effect being used for viewing. The propagation path may be a continuous permalloy overlay, and in Fig. 8 this overlay is width varied to provide, with an adjacent driven domain, a rest position for a propelled domain where the changes of width have the same taper, and a unidirectional propagation direction when adjacent changes of width have substantially different tapers. Details of the switch used in Figs. 3 and 4 are shown in Fig. 9, the path 2 or 3 followed by a domain 5 being determined by the direction of current in a conductor 11.
Patent GB-937247-A (GB)
Title: Improvements in burning gases for use in making glass fibers
IPC: C03B37/065
Filed: 1960-11-29
Abstract: 937,247. Burners. PITTSBURGH PLATE GLASS CO. Nov. 29, 1960 [Dec. 3, 1959], No. 40920/60. Class 75 (1). [Also in Group XXIII] A method for mixing gases for use in making glass fibres comprises burning a combustible mixture in a first zone to effect substantially complete combustion thereof, passing the thusly burned gases to a second zone, reducing the temperature of the gases in the second zone and discharging the gases. Glass fibres 30 are drawn from a melting tank and guided into a gaseous blast 37 from a burner 38 comprising a chamber 45 supplied with a combustible mixture by conduit 54 through a grid plate 49, the burned gases passing around a shadow wall 64 to a second chamber 60 forming a continuation of chamber 45. Cooling fluid such as air, steam or water at a considerably lower temperature is mixed with the burned gases in chamber 60 by pumping the fluid through a pipe 68, the gases then passing through a restricted passageway 82 to a third chamber 75 set at an angle to the first two chambers 45, 60 to give turbulence to the blast 37 to form curly fibres. The gases are discharged through a rectangular opening 84, partly filled by an exchangeable ceramic wedge 85 to give different flow characteristics to the blast 37. The chambers 45, 60 and 75 may also be formed in line.
Patent GB-1046349-A (GB)
Title: Improvements in or relating to gas laser systems
Inventor: SIMMONS DERRICK GEORGE
IPC: H01S3/083
Filed: 1964-10-07
Abstract: 1,046,349. Lasers. MULLARD Ltd. July 29, 1965 [Oct. 7, 1964], No. 40966/64. Heading H3B. A cold cathode glow discharge produced by a co-operating anode and cathode in a gaseous active medium is used in a ring laser. In Fig. 1 one or more self-contained negative glow laser tubes 1, 2 are located in a closed optical path formed by three mirrors 3, 3<SP>1</SP>, 3<SP>11</SP>, the mirror 3 being partially transmitting. Of the light passed by the mirror 3, the portion due to light travelling clockwise around the ring is reflected by a partially transmitting mirror 4, and the portion due to light travelling anticlockwise is reflected by a mirror 4<SP>1</SP> and transmitted by mirror 4, the two light portions being combined in a photo-detector 5. The arrangement may be used to determine angular velocity when the ring is rotated, a proportional indication being given by the difference between the frequencies of the two light portions received by the photodetector. The gaseous active medium may be a helium-neon mixture. In a modification, Fig. 2 (not shown), separate laser tubes are not used, the whole of the ring laser being contained within an envelope 10 filled with the gaseous active medium. A triangular light path is defined by adjustable mirrors 7, 7<SP>1</SP>, 7<SP>11</SP>, and cathodes 6 and adjacent anodes are associated with various portions of the light path. Separate anodes may be used or the anodes may be formed by the envelope itself. Arrangements for extracting the clockwise and anticlockwise light portions are described, Fig. 5 (not shown), use being suggested of light scattering by a thin wire 11, and detection of the scattered light by either an internal element or an external element. Another method is the provision of an optical plate 12 in the light path and a mirror 13 for the anticlockwise light.
Patent GB-1179347-A (GB)
Title: Fluid Pressure Operated Switch
IPC: B60T17/22
Filed: 1967-09-07
Abstract: 1,179,347. Brake indicators. WEATHERHEAD CO. 7 Sept., 1967 [6 Oct., 1966], No. 40991/67. Headings F2E and F2F. [Also in Division H1 A switch for use in a dual fluid pressure brake system comprises a housing 20 containing a bore in which are two pistons 57, 60 separated by a spacer 69. Any pressure difference due to failure of one brake circuit will move the piston and spacer assembly so that electrical contact is made between the spacer 65 and a projecting pin 87, to complete a circuit to arc indicator lamp.
Patent GB-1235596-A (GB)
Title: Preparation of alpha-chloroaliphatic acids
Inventor: WASHECHECK PAUL HOWARD
IPC: C07C51/29
Filed: 1969-08-20
Abstract: 1,235,596. Preparation of α-halo-acids. CONTINENTAL OIL CO. 20 Aug., 1969 [5 Feb., 1969], No. 41514/69. Heading C2C. α-Halo-acids are prepared by oxidation of an aliphatic saturated hydrocarbon aldehyde having a hydrogen atom in the α-position, or of an aliphatic saturated α-halo-aldehyde, with a halogen in a aqueous medium while excluding light. In the former case α-halogenation takes place. The process may be continuous and is preferably effected in the presence of the hydrohalic acid corresponding to the halogen used. The exemplified product is α-chloro-isobutyric acid. By-products obtained are #- chloro isobutyric acid, acetic acid, isobutyric acid and methacrylic acid.
Patent GB-1236112-A (GB)
Title: 5,10-dihydro-11h-dibenzo[b,e][1,4]diazepine-11-ones
IPC: C07D243/38
Filed: 1969-08-20
Abstract: 1,236,112. Dibenzodiazepine derivatives. DR. KARL THOMAE G.m.b.H. 20 Aug., 1969 [20 Aug., 1968; 20 June, 1969], No. 41598/69. Heading C2C. [Also in Division A5] Novel dibenzodiazepines of Formula (I) (in which R 1  is H or C 1-4  alkyl, each of R 2  and R 3  is H or halogen, and R 4  is a monocyclic, 5 to 7 membered, heterocyclic ring linked to the carbon atom of the acetyl group via a nitrogen atom, the ring, if desired, containing a cyclic oxygen atom or a further cyclic nitrogen atom and/or being substituted by one or two C 1-4  alkyl, C 1-4  hydroxyalkyl or C 1-4  alkoxy groups or by a benzyl or methylbenzyl group) and acid addition salts thereof, are prepared by reacting a compound of Formula (II) (in which Hal is a halogen atom) with a compound of formula R 4 H, and, if desired, converting a resulting compound I into an acid addition salt thereof. Compounds I in which R 4  represents a 1-piperazinyl group unsubstituted in the 4-position may also be prepared by hydrogenolysis of a corresponding compound I (prepared as described above) in which R 4  represents a 4-benzyl-1-piperazinyl group. Starting materials of Formula (II) are prepared by reacting a corresponding 5-unsubstituted dibenzodiazepine with chloroacetyl chloride. 2 - Chloro - 5,10 - dihydro - 10 - methyl - 11H- dibenzo - [b, e][1,4] - diazepin - 11 - one is prepared by reacting the potassium derivative of 2 - chloro - 5,10 - dihydro - 11H - dibenzo- [b, e][1,4] - diazepin - 11 - one with methyl iodide.