baber/WOPTO huggingface dataset:
Patent GB-1383548-A (GB)
Title: Light emitting diode assembly
IPC: H01L33/54
Filed: 1972-06-29
Abstract: 1383548 Electroluminescence PLESSEY CO Ltd 25 June 1973 [29 June 1972] 30462/72 Heading C4S [Also in Division F4] A light emitting diode assembly includes a dish-shaped light reflector formed at one end of and as an integral part of, a first electrical supply lead 2, a light emitting diode mounted within the reflector, a major proportion of the area of one side of the junction being in electrical contact with the reflector and a second supply lead 5, one end being, in contact with the other side of the junction, the diode, reflector and the one end of the lead being encapsulated in a bead of a light transparent material. The assembly may then be further encapsulated in epoxy outer member 10. In fabrication a U-shaped conductor (1) (Fig. 1, not shown) is dished at one free end, a light reflective contact material formed thereon, the diode mounted, a film of contact material formed on at least the other free end and connected to the diode (e.g. via fine wire (7), Fig. 2 (not shown), and after encapsulation, each limb severed at or near the base of the U. Member (1) may be Ni plated Cu, the reflective material, Au, connection made by a Au/Ge alloy solder, and the encapsulation 8 of an epoxy base resin. The part of member 10 behind the reflector may be of regular cross-section (e.g. circular). Opaque collar (11) enhances the appearance and minimizes the effects of meniscus 12 irregularities. In Figs. 4A, 4B (not shown) section (3) is formed by flattening, dishing and bending with intermediate annealing. The panel assembly of Fig. 5 (not shown) includes bush (13) with chamfered end (15) in panel (16) aperture, slot (17) facilitating mounting. Washer (14) chamfer (20) is the same angle as chamfer (19), reverse mounting of the washer accommodating a thicker panel. Flange (11a) cooperates with groove (22), and bush (13) may alternatively have three or four slots (17).
Patent GB-714999-A (GB)
Title: An air distributor for railway brakes
IPC: B60T15/18
Filed: 1952-12-02
Abstract: 714,999. Fluid-pressure brakes. KOVOLIS, NARODNI PODNIK, OLEJNIK. T., and DANEK, J. Dec. 2, 1952 [Dec. 3, 1951], No. 30526/52. Class 103(1) A distributer valve assembly for fluid pressure brakes for railway vehicles comprises means whereby in order to obtain a rapid release of the brakes of a train, it is possible to maintain for a considerable period a pressure in the brake pipe above the normal operational pressure without overcharging the auxiliary and control reservoirs. Such means comprises a bypass valve 50 which in the event of excessive brake pipe pressure acting in chamber 52 is pressed against spring 51 on to seats d and m. Since under these conditions the seats j and h of a throttle valve 20 are also closed, it is only possible for air from the brake pipe 10 to pass to the auxiliary reservoir 46 through nozzles 64 and 62 at a very limited rate of flow. The over pressure may thus be maintained in the brake pipe for as long as 50 seconds. When the brake pipe pressure is back to normal, valve 50 lifts and equalizes the pressures.
Patent GB-659740-A (GB)
Title: Improvements in and relating to the washing of hydrocarbon oils
IPC: C10G29/06
Filed: 1947-11-19
Abstract: Hydrocarbon oils are washed with an aqueous alkaline solution to reduce acidity and remove alkali-soluble substances, a metal salt of a sulphated alcohol being added either to the oil to be washed or to the aqueous alkaline solution in order to improve phase-contact and prevent emulsification.  Hydrocarbon oils mentioned are benzol, toluol, and aromatic and aliphatic hydrocarbons, while the alkali may be caustic soda or caustic potash.  Metal salts of sulphated alcohols which are referred to are metal salts of sulphated fatty or higher alcohols, such as the sodium salts of sulphated octyl or decyl alcohol and the metal salts of the sulphated alcohols obtained by sulphating the alcohol liberated on saponification of palm oil, sperm oil, oleo and like fatty oils.ALSO:Hydrocarbon oils are washed with an aqueous alkaline solution to reduce acidity and remove alkali-soluble substances, a metal salt of a sulphated alcohol being added either to the oil to be washed or to the aqueous alkaline solution in order to improve phase-contact and prevent emulsification.  Hydrocarbon oils mentioned are gasoline, benzol, toluol, and aromatic and aliphatic hydrocarbons, while the improvement of colour stability or storage properties of hydrocarbon oils, the extraction of mercaptans from gasoline, the extraction of hydrogen sulphide and light hydrocarbons from hydrocarbon oil, and the neutralizing of organic acids in gasoline, kerosene, distillate oils and light lubricating distillates are also referred to.  The alkali may be caustic soda or caustic potash, while metal salts of sulphated alcohols which are mentioned are metal salts of sulphated fatty or higher alcohols, such as the sodium salts of sulphated octyl or decyl alcohol and the metal salts of the sulphated alcohols obtained by sulphating the alcohol liberated on saponification of palm oil, sperm oil, oleo and like fatty oils.  The process is particularly applicable to the extraction of mercaptans from gasoline by treatment with a caustic soda solution containing added tannin and cresols (obtained by the extraction of thermally cracked gasoline). Such an extraction may be carried out by countercurrent contact in a tower packed with carbon Raschig rings.  In another example, thermally cracked gasoline is washed with aqueous caustic soda by countercurrent contact in a tower packed with Raschig rings, sodium octyl sulphate being added either to the gasoline or to the caustic soda solution.
Patent GB-905611-A (GB)
Title: Improvements in and relating to the coating of metallic surfaces
Inventor: WORTH FREDERICK HAROLD
IPC: C23C2/00
Filed: 1957-10-01
Abstract: 905,611. Coating with metals. TECHNOGRAPH PRINTED CIRCUITS Ltd. Oct. 1, 1958 [Oct. 1, 1957], No. 30709/57. Class 82 (2). In a process of continuously coating a metal such as copper with a fusible alloy such as a tin-lead solder by transferring the moten alloy to the metal by a roller which is partly immersed in the molten alloy bath covered with a flux layer, the metal contacts the roller above the bath and the roller is continuously wiped on the rising side and a meniscus is maintained just above the bath level to avoid any dross or flux being carried out of the bath on the roller. The coating roller 14 is partly immersed in the molten alloy bath maintained at a level 13 and an idler roller 15 also partially immersed is pressed against roller 14 by a spring 16 and ensures a flow of flux against the descending side of the roller. A baffle 17 tangential to the roller 14 below the level 13 prevents the flux and dross adhering to the rising side of the coating roller. A spring loaded upper roller 18 positively driven at the same speed as roller 14 holds the workpiece against the coating roller and it may be coated with a resilient material such as silicone rubber. The rollers 14, 15 and 18 and baffle 17 are mounted in a frame 23 which can be swung about a horizontal axis for lifting out of the bath. The molten metal is electrically heated by elements 21 and is thermostatically controlled.
Patent GB-603019-A (GB)
Title: Improvements in or relating to power-driven screw-drivers
IPC: B25B23/10
Filed: 1945-11-16
Abstract: 603,019. Attachments for inserting screws. WHEELDON & SONS, Ltd., J., and KILGOUR, H. G. Nov. 16, 1945, No. 30751. [Class 83 (iii)] A power-driven screw-driver comprises two or three spindles provided at their lower ends with blades and driven, in the same direction, from a common shaft, means being provided for feeding screws by gravity. Two spindles 6, Fig. 1, are mounted in a block 3 and driven from a pinion 5 mounted, with the spindle pinions 11, in a cavity formed between the block 3 and a block 1 secured thereto. The lower ends of the spindles, fitted with blades 9, pass through a block 12 which may drop relatively to the spindles when the block 3 is raised, the movement being limited by the engagement of lugs 14 on the block 3 with shoulders 16 on feed tubes 13 carried by the block 12. Screws are fed point-downwards down the tubes 13 and pass to nozzles 19 when the block 3 is raised, the screws being arrested in position for engagement by the blades 9 by pivoted, spring-urged jaws 21, Fig. 3, moving in gaps between the two-part nozzles 19. Tumbler catches 25 prevent upward movement of the screws held .in the jaws 21. In another form, having thin spindles, these are driven by an internally toothed pinion and the pivoted jaws are replaced by transverse spring-influenced sliding members.
Patent GB-906251-A (GB)
Title: Improvements in or relating to mask lip seals
Inventor: ALLEN GEOFFREY REX
IPC: A62B18/02
Filed: 1959-09-09
Abstract: 906,251. Respiratory appliances. AVIATION, MINISTER OF. July 28, 1960 [Sept. 9, 1959], No. 30770/59. Class 81 (2). To prevent the inturned edge 20 of a face mask from unrolling, tie members 25 have one end secured adjacent the edge 20 and the other to the main wall 22 of the mask. A flexible substantially inextensible reinforcing cord may be secured at intervals adjacent the edge 20.
Patent GB-446515-A (GB)
Title: Improvements in or relating to tiles and wall linings
IPC: E04F13/14
Filed: 1934-10-27
Abstract: 446,515. Composite sheet materials. FORGO, S. I., and BALOG, B. A., 16, Dohany Utca, Budapest. Oct. 27, 1934, No. 30835. [Class 140] [See also Groups X, XIV, and XV] A composite sheet material comprises a sheet of glass not more than 4 mms. thick, to the back of which is stuck by an adhesive, e.g. damar lacquer varnish, a thin metal sheet, e.g. tin foil, which is coated on its exposed side first with a waterproof varnish, e.g. a copal-linseed oil varnish, and then an oil proof varnish, e.g. a shellac-methylated spirit varnish. The glass may be coated on the back with paint before the adhesive varnish is applied, or the paint may be mixed with the varnish. Tiles may be formed by attaching the sheets by putty to a backing of wood, metal, or cement composition and coating the edges with bituminous paint. The sheets may be applied to a wall by putty, or cemented to concrete gravestones or crosses, or they may form shelves, table tops, mirrors, advertisement signs, or ornamental letterings.
Patent GB-392211-A (GB)
Title: Improvements in and connected with safety razors
IPC: B26B21/40
Filed: 1931-11-09
Abstract: 392,211. Safety razors. FARRELLY, J., 25, Elmbank Crescent, Glasgow. Nov. 9, 1931, No. 30988. Drawings to Specification. [Class 30.] In razors of the type in which a cap is screwed down upon a flexible blade, the cap is covered with a sheet of flexible material such as indiarubber. The guard plate may also be so covered.
Patent GB-208336-A (GB)
Title: Improvements in or relating to knives
IPC: B26B5/00
Filed: 1922-11-14
Abstract: 208,336. Hall, E. O. Nov. 14, 1922. Handles with clamping- devices for thin blades; fixing by dovetail tangs with bolt securing devices.-Detachable knife blades are formed with a recess in one one side in which the tang of the blade is clamped by a removable piece and a clamping-screw, the edges of the tang and of the recess being shaped to form a firm and rigid connection. As shown, the handle comprises a metal frame a' recessed on each side for pieces a<2> of wood, horn, bone &c., the metal being extended at one or both edges to form a guard a<3>. A recess b is formed to receive the correspondingly shaped end or tang c<1> of the blade c. A metal piece f fitting the recess is clamped on to the tang by a screw d and recessed nut e, Fig. 3, the handle, tang and piece f being perforated for the screw and nut, as shown.
Patent GB-894109-A (GB)
Title: Power transmissions
Inventor: BLACK JAMES BENJAMIN
IPC: F16H45/00
Filed: 1958-09-29
Abstract: 894,109. Clutch control. TWIN DISC CLUTCH CO. Sept. 29, 1958, No. 31068/58. Class 80 (2). A power transmission, particularly for a farm tractor, comprises an hydraulic torque converter 17 incorporating a lock-up clutch 46, a traction clutch 91 connecting a turbinedriven output shaft 26 with a load shaft 68, and a pump 92 driven by the impeller 20 through a gear-wheel 19, the pump providing a continuous supply of serving liquid through the converter and to both clutches, that for the converter entering through a passage 47 in a carrier frame 18 and exhausting through an opening 49 between the turbine and reactor. The hydraulic circuit, Fig. 3, comprises a three-position clutch control valve 100, the piston 101 of which controls an inlet port 98 and outlet ports 102, 103 for the clutches, and an exhaust port 104, and also includes pressure-regulating valves 107, 110 governing the clutch engaging and release pressures. As shown, both clutches are held out of engagement by the pressure of the liquid circulating within the converter, which acts upon the right-hand face of the actuator piston 38 of the lock-up clutch, and through passages 49, 51, 52, 84 also acts in release chamber 83 of the traction clutch actuator 70. For hydraulic or converter drive valve piston 101 is advanced to a position between ports 102, 103, thus admitting pressure liquid through pipe 78 and passage 75 to a second chamber 74 of the traction clutch actuator, the traction clutch thus being engaged and the lock-up clutch remaining disengaged. For direct drive piston 101 is advanced still further to allow the passage of pressure liquid through pipe 53 and an annular space 56 between shaft 26 and a power take-off shaft 57 to the left-hand side of piston 38, so that both clutches are engaged. The plates of the traction clutch are cooled and lubricated by liquid tapped off from chamber 83 by a passage 87 and fed to a chamber 90, from which it passes to the inner edges of the plates.
Patent GB-966714-A (GB)
Title: Improvements in and relating to mineral mining machines
Inventor: ANDERSON JAMES
IPC: E21C35/06
Filed: 1961-08-30
Abstract: 966,714. Mineral-mining machines. ANDERSON, BOYES & CO. Ltd. Nov. 30, 1962 [Aug. 30, 1961], No. 31185/61. Heading E1F. To allow of variation of the angle of tilt of a mineral-mining machine transvervely of a conveyer along which the machine travels the machine is supported on the conveyer through support means of which at least one is automatically varied in length by a sensing means to cause variation of the angle of tilt as required to conform to datum conditions. Preferably the adjustable support means comprise a pair of hydraulic jacks 4 secured to either end of the machine at one side thereof, each jack being coupled to a skid 3c sliding on a side frame of the conveyer. Screw units may replace the jacks 4. Automatic adjustment of the support means is controlled by a sensing element on the machine determining variation of the machine from a predetermined position as it moves along the conveyer.
Patent GB-520258-A (GB)
Title: Condenser over-pressure control system for condensing steam engine installations
IPC: F01B25/00
Filed: 1938-10-28
Abstract: 520,258. Engine stop-gear. COCKBURNS, Ltd., and GRANT, T. Oct. 28,1938, No. 31190. [Class 122 (iv)] In a condensing steam engine installation, supply of the steam to the engine is reduced or cut off, if the pressure in the condenser exceeds a predetermined maximum, by means of a valve actuated by a fluid pressure motor which is operated when a valve 1a, is opened due to rise of pressure'in. the condenser. The condenser is connected by a pipe 8 to a chamber 7 fitted with a flexible diaphragm 6, or a piston working in cylinder. The other side of the diaphragm 6 is acted upon by atmospheric pressure and the diaphragm 6 is sandwiched between two plates 16, 16a, one 16a acted upon by an adjustable spring 9, and the other connected by a pair of levers 15 to the spindle 10 of the valve 1a, which is pressed upwards by an adjustable spring 13. When the valve 1a is opened, due to rise of pressure in the pipe 8, a fluid pressure motor actuates a stop valve to control the supply of steam to the engine, and in some cases a further motor may operate a relief valve to relieve the pressure in the condenser.
Patent GB-638326-A (GB)
Title: Improvements in the manufacture of metal-glass seals comprising an alloy component
IPC: C03C27/02
Filed: 1947-11-25
Abstract: In an article comprising a glass part which is sealed to a metal part, the metal part consists of an iron-nickel-cobalt alloy of which the co-efficient of expansion, at least in the metastable g  phase, is lower than 70.10-7, to which alloy has been added 0.25-5.0 per cent of copper.  The use of alloys of the following compositions is referred to:-  .Ni.26.5 per cent.26.5 per cent.26.5 per cent .Co.17.5 per cent.17.5 per cent.17.5 per cent .Cu.1.0 per cent.2.0 per cent.3.0 per cent .Mu.0.5 per cent.0.5 per cent.0.5 per cent .Fe.remainder.remainder.remainder
Patent GB-377055-A (GB)
Title: Improvements in or relating to the driving of the vertical slide in double acting bolt presses
IPC: B21K1/44
Filed: 1931-11-12
Abstract: 377,055. Forging bolts. HILGELAND, C., 5, Gasstrasse, Ronsdorf, Wuppertal, Germany. Nov. 12, 1931, No. 31407. [Class 83 (iv).] The slide a of a double-acting bolt press is actuated by an eccentric disc or cam c on a shaft t keyed into a hollow shaft w driven by bevel gears x &c. from the crank shaft y, the cam c engaging rollers d, e on a frame part m at the end of the slide a. Play between cam and rollers is taken up by mounting the roller d on an eccentric portion f of the journal pin h which is rotatably adjustable by an arm i, screw bolt k and wing nut n and held fast by a lock nut o. Cam c is fastened to shaft t by means of a front plate p secured to the end of the shaft by a nut s and to the cam by clamp screws q passing through slots r. The shaft t is mounted in the press head b whilst the shaft w is mounted in the machine frame.
Patent GB-1395637-A (GB)
Title: Liquid level indication
IPC: G01F23/24
Filed: 1972-07-05
Abstract: 1395637 Measuring liquid level electrically; bi-metal elements TEXAS INSTRUMENTS Inc 5 July 1972 [6 July 1971] 31437/72 Headings G1D and G1N [Also in Divisions H 1 and H5] In a fluid level indicating apparatus a thermistor 64, Fig.3, having a positive temperature coefficient is mounted in a probe 48 within the fluid reservoir and connected in series with a heater element H1, Fig.7 (not shown), of a thermal bi-metal switch 84 whereby an indicating means in energized when the liquid level falls. As shown in the embodiment of Fig.13 (not shown), thermistors S1, S2 may be mounted in separate reservoirs whereby they are both normally immersed in fluid and, while cool, permit sufficient current to flow through the heaters H1, H2 of bi-metal switches SW1, SW2 to keep them in the open-circuit condition (shown). In the event of a fall in level, one or other of the thermistors becomes heated with a consequent sudden drop of current through one of the heaters H1, H2 whereby switch SW1 or SW2 closes to illuminate a warning lamp LP. Thermal switch. Each thermal switch comprises a pair of bi-metal cantilever elements 94, 96, Fig.9 (not shown), having contact elements at their free ends 81, 83 and supported by an insulating cross bar 92 on an ambient temperature compensating bi-metal strip 90 fixedly mounted at its lower end 88. Heater elements H1, Fig.7 (not shown), (See Heading H5H) are clipped to one face of the bi-metals and have terminal wire connections 106, 108 associated with terminal lugs T4, T5 in series with a thermistor 64. Temperature responsive adjustment is provided by fixed contacts 80 on the end of adjusting screws 76.
Patent GB-1217316-A (GB)
Title: Battery charging systems for road vehicles
Inventor: NOLAN ROGER WILLIAM
IPC: H02J7/24
Filed: 1967-07-07
Abstract: 1,217,316. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. June 12, 1968 [July 7, 1967], No.31442/67. Heading G3R. The battery of a road vehicle is charged by two generators, a voltage regulator controlling the output of one generator and a slave circuit, coupled to and operable by the voltage regulator, controlling the output of the second generator. As shown, in a system having ouput lines 11, 12 for connection to a battery, the excitation current in the field winding 23 of a first generator is controlled in known manner by a voltage regulator including switching transistors 17, 22 and an output-voltage sensing circuit 13, 14, 15, 16; the output from the voltage regulator, at the collector of transistor 22, also controls a slave circuit including resistors 31,32 and further switching transistors 33,36, the latter being in series  with the field winding 37 of a second generator connected to the output lines 11,12. Thus transistor 36 is controlled in the same way as transistor 22, whereby the output of the second generator is adequately regulated by the slave circuit which is simpler in construction than a second complete voltage regulator which would otherwise be required. The generators may be alternators with rectified outputs, or D. C. dynamos.
Patent GB-790772-A (GB)
Title: Improvements in or relating to lock washers
Inventor: PEARSON GEORGE
IPC: F16B39/10
Filed: 1954-11-01
Abstract: 790,772. Locking nuts. PRIEST & SONS, Ltd., B. Nov. 1, 1955 [Nov. 1, 1954], No. 31459/54. Class 89(1) [Also in Group XXII] A locking-washer comprises an annular body with one or more radially outwardly - projecting tabs 11 and a number of prongs 15 inclined radially-inwardly and axially with respect to the body, the points of the prongs lying on a circle of slightly larger diameter than the diameter of the thread of the member receiving the washer. A nut is locked on the thread by clamping the washer against the work through which said member passes, thereby deforming the prongs into the threads, and finally bending the tab or tabs against one or more of the nut flats. The cut-out 13 forming the prongs consists of circles having their centres on the corners of a square 14 where four prongs are involved, or an. equilateral triangle or regular pentagon respectively for three or five prongs.
Patent GB-341864-A (GB)
IPC: F23M5/08
Filed: 1929-10-16
Abstract: 341,864. Pulverulent fuel furnaces. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl Ufer, Berlin. Oct. 16, 1929, No. 31494. Convention date, Nov. 6, 1928. Addition to 282,109, [Class 51 (i), Furnaces and kilns, Combustion apparatus of Drawings to Specification. [Class 51 (i).] In the furnace described in the parent Specification some or all of the flames from the opposed burner tubes are directed towards the combustion air which enters at the end of the firebox remote from the furnace door. The required direction may be given to the flames by the formation of the slots in the burners, or by ribs or blades in front of the slots. The blades may be adjustable so that the flames can be concentrated towards the middle of the firebox.
Patent GB-254189-A (GB)
Title: Improvements in or relating to disinfecting cabinets and the like
IPC: A61L2/06
Filed: 1925-12-15
Abstract: 254,189. Vale, C. S. Dec. 15, 1925. Disinfecting - chambers.- A wardrobe or cabinet for disinfecting clothing &c. comprises an hermetically closable main compartment A for receiving the articles to be treated, in which a disinfectant gas can be liberated without the employment of fire. and means disposed within a secondary compartment such as C whereby the disinfecting gases can be expelled and replaced by a neutralizing gas before the main door is opened. For liberating the disinfecting gas there is employed a carton H containing disinfectant and a substance which will cause the disinfectant to vaporize upon the addition of water. In the construction shown, the secondary compartment contains a bellows F, and air drawn in through holes E at the back of the compartment passes through a tray G containing a neutralizing substance such as carbonate of ammonia before entering the bellows. The air is then admitted into the main chamber A through a non-return or other valve C' and passes into the atmosphere through a valve D and a flexible pipe D<2>.