baber/WOPTO huggingface dataset:
Patent GB-1485461-A (GB)
Title: Safety systems for minimising fire and explosion hazard in the presence of combustible gases
IPC: G08B17/117
Filed: 1974-01-23
Abstract: 1485461 Sensing combustible gas GREENPAR HEAT TREATMENTS Ltd 25 Sept 1974 [23 Jan 1974] 03183/74 Heading G1N A safety system which operates to turn off a fuel supply and detection of a combustible gas, comprises a transducer 16 positioned for detection of a combustible gas and including two electrodes 24, 25, means, e.g. a multi-vibrator, for energizing the electrode 24 with short duration electrical pulses, means for detecting a current flow between the electrodes 24, 25 on detection of a combustible gas, and means operable from the detected current flow to close a fuel supply valve. The system may be applied to the detection of hydrogen, carbon monoxide, methane, propane, butane or alcohol vapour, and particularly to the detection of a fuel gas supplied in a pressurized container and installed in a yacht or caravan. The transducer 16 is an n-type semi-conductor comprises a sintered mass of tin dioxide whose electrical conductivity increases in the presence of a combustible gas. The electrodes 24, 25 are of platinum/iridium alloy, the electrode 24 serving also as an electric heater for the transducer 16 and energized by a multi-vibrator comprising capacitors C2, C3 and transistors TR1, TR2, TR3, the transistor TR1 regulating the charging of the capacitor C2. The power supply is regulated by a Darlington pair TR4, TR5, and a Zener diode Z1. The increased current flow between the electrodes 24, 25 on detection of a combustible gas triggers a thyristor SCR to operate a relay 1 to turn off a fuel supply valve (12) Fig. 1 (not shown) and to energize a ventilation fan (18), a warning lamp (20) and a buzzer (22). An alternative embodiment Figs. 3 and 4 (not shown) includes four transducers.
Patent GB-913379-A (GB)
Title: Improvements in or relating to glazing frames
IPC: E06B3/58
Filed: 1960-01-28
Abstract: 913,379. Glazing. MARGAIRAZ, A. Jan. 28, 1960 [Jan. 29, 1959; Jan. 18, 1960], No. 3184/60. Class 20 (3). A glazing frame fitting in the rebate 8 of a window frame 9 and formed of U-section members 35, Fig. 12, 52, Fig. 13, or 59, Fig. 15, to accommodate the double window glass 65, Fig. 15, and having a securing flange which may be integral with the U-section members as 19, Fig. 15, or separate from the V-section members as 49, Fig. 12, with adjacent edges of the frame and flange interengaging as at 49, 51 or as indicated in Figs. 4-11 (not shown) and a peripheral flange or rib 18, Fig. 12, arranged to cover the joint of putty &c. between the U- section frame and the rebate 8 of the window frame 9. As shown in Fig. 15, the rib 70 may form part of the profile of the U-section. The flange or rib 53, Fig. 13, has a sharp edge 54 to penetrate into the surface of the frame 9 during assembly of the frame 52 in the frame 9. Packing pieces may be inserted between the flange such as 19 and the rebate 8 or such flange may be covered by an ornamental strip. A peripheral rib 66, Fig. 15, or flange may be provided to contact the rebate during assembly to restrain the outward movement of putty &c. disposed between the glazing frame and the rebate. The limbs 60, 64 of the U-section are inclined inwards to maintain pressure on the glass.
Patent GB-710451-A (GB)
Title: Improvements in or relating to show cases, book cases or similar articles
Inventor: BOTTOMLEY FRANK
IPC: A47F5/10
Filed: 1952-02-07
Abstract: 710,451. Cabinets; shelves. CASES (HALIFAX), Ltd. Feb. 5, 1953 [Feb. 7, 1952], No. 3217/52. Class 52(1) A shelved article such as a showcase or a bookase comprises vertical end uprights 1 having grooves 4 to accommodate shelves 15 and, optionally, a vertical panel, the assembly being held together by resilient members 14 under tension detachably connected to and extending between the uprights. The resilient members 14 may comprise sheathed coil springs, elastic strands or a rod having at one end or both ends a coil spring; they may carry end eyelets engaging hooks secured to the uprights or, as shown, carry hooks 13 taking over pins 9 traversing bushes 8 inset in the uprights. The upright may be of inverted U-shape, the inner edge of which is grooved to receive a glass panel and may have non-slipping feet which may engage recesses in a stand or base.
Patent GB-988901-A (GB)
Title: New azo dyestuffs
Inventor: BAKER RONALD
IPC: C09B62/473
Filed: 1962-01-29
Abstract: The invention comprises dyestuffs which, in the form of free acids, are represented by the formula <FORM:0988901/C4-C5/1> wherein X represents a hydrogen atom or a lower alkyl radical containing 1-4 carbon atoms, R1 and R2 each independently represent a hydrogen or a chlorine atom, R3 represents hydrogen, chlorine, carboxylic acid or methyl, m represents 1, 2 or 3, one L represents a hydroxy group and the other L represents a group of the formula <FORM:0988901/C4-C5/2> wherein n represents 1, 2 or 3.  The dyes are prepared by appropriate diazotization coupling and acylation procedures. Examples are furnished.  Specification 885,814 is referred to.
Patent GB-777382-A (GB)
Title: Treatment of tar works effluent
Inventor: MILNER DAVID WILLIAM
Filed: 1955-02-04
Abstract: Tar works effluent having oil-soluble material such as phenols, bases and neutral oils dissolved or dispersed therein is treated by introducing it into the vapour phase of the upper section of a continuous tar still before the vapour reaches the condenser, and then condensing the resulting vapour mixture and separating the aqueous layer whilst returning the oil layer, in part, to the still as reflux.  The effluent is preferably used cold.  The effluent may be the distillate from a tar acid purification plant.ALSO:Tar-works effluent having oil-soluble material such as phenols, bases and neutral oils dissolved or dispersed therein is treated by introducing it into the vapour phase of the upper section of a continuous tar still before the vapour reaches the condenser, and then condensing the resulting vapour mixture and separating the aqueous layer whilst returning the oil layer, in part, to the still as reflux.  The effluent is preferably used cold.  The effluent may be the distillate from a tar acid purification plant.
Patent GB-1004878-A (GB)
Title: Improvements in and relating to mixing devices
IPC: B28C5/16
Filed: 1963-08-22
Abstract: 1,004,878. Skip hoists. INPACO TRUST RES. Aug. 22, 1963 [April 24, 1963], No. 33237/63. Heading B8H. [Also in Division B1] A concrete mixing pan 1 (see Division B1) is supported on bifurcated guide rails 28 whereby it is caused to discharge into a hopper 26 when lifted by a winch mechanism 29 driven by the same motor as that which operates mixing blades in the pan. The hopper is arranged for discharge into a truck positioned therebeneath.
Patent GB-243571-A (GB)
Title: A new or improved electric terminal connection
Filed: 1925-02-06
Abstract: 243,571. Cole, S. W. Feb. 6, 1925. Plug couplings; two-part couplings; binding-posts.-A socket terminal to be fitted to a panel and receive the end of a telephone lead &c. comprises a socket a having a shoulder b and securing nut c, and adjacent the inner end of the socket a pair of spring arms d that make contact with the end h of a lead inserted in the socket. The socket may be formed with an internal shoulder k to coact with a plug that is reduced in diameter at the end. The arms d may be secured by being made in one with a washer e that fits around the socket, and a lateral connection may be provided on the washer for the soldering on of a wire. A coloured disc m may be secured beneath the shoulder b to correspond with a coloured sleeve l on the lead.
Patent GB-130633-A (GB)
Title: Improvements in Systems for Condensing Steam and Heating and Supplying Feed Water for Steamships.
IPC: F01B25/00
Filed: 1918-02-26
Abstract: 130,633. Weir, G. & J., and Lang, C. R. Feb. 26, 1918. Feed-water, supplying.-In a feed-water system for steamships, comprising a condenser a from which air is withdrawn by a steam or water jet ejector b discharging to the atmosphere, together with a pump m withdrawing condensate from the condenser and discharging it to a directcontact feed-heater p, the pump m is of the steamdriven direct-acting type, and is fitted with a floatcontrol device whereby the supply of actuating steam is controlled in accordance with the waterlevel in the condenser. The float-control device comprises a valve v regulating the supply of steam to the engine w which drives the pump m. together with linkages q, r, s connecting the valve to a float in a float box g communicating with the condenser by pipes h, k. The steamsupply valve 5 of the boiler feed-pump x is controlled by a float in the feed-heater p. The exhaust steam from the ejector b is led to an auxiliary condenser d, the condensate flowing through a pipe c to the reserve feed-tank t. In a modified apparatus, the exhaust from the ejector b is passed to a combined surface feed-heater condenser, and the discharge from the pump m is led through one section of the feed-heater condenser on its way to the direct-contact feedheater, while the other section of the feed-heater condenser is cooled by sea-water.
Patent GB-943885-A (GB)
Title: Improvements in or relating to rolled capacitors
IPC: H01G4/32
Filed: 1962-01-30
Abstract: 943,885. Soldering; making capacitors. TELEGRAPH CONDENSER CO. Ltd. Jan. 30, 1962 [April 28, 1961], No. 3438/62. Headings B3A and B3R. [Also in Division H1] End caps 5, 6 are secured on a rolled capacitor of the type including wound thermoplastic dielectric sheets 3, 4, and in which some of the metal foil electrodes 1, 2 protrude beyond the ends of the roll, by heating the end caps, e.g. by resistance heating so that the ends of the dielectric layers will soften and the electrode projections 1<SP>1</SP>, 2<SP>1</SP> be soldered to the tinned inner surfaces of the caps 5, 6. Polyethylene or polystyrene films are referred to as the dielectric and a tin alloy, e.g. 83%, tin 17% lead as a suitable electrode material. The capacitor is enclosed in a sprayed casing of epoxy resin.
Patent GB-524597-A (GB)
Title: Improvements in miniature upright pianos
IPC: G10C1/02
Filed: 1939-02-01
Abstract: 524,597. Miniature pianos. EAVESTAFF & SONS, Ltd., W. G., and BRASTED, R. P. Feb 1, 1939, No. 3452. Drawings to Specification. [Class 88 (ii)] The name board or top rail of a miniature upright piano is formed with one or more apertures for the escape of sound. The apertures may be of slot-like form and arranged on each side of the music rest upon the name board, and they may be provided on the inside of the case with a fabric, grid or gauze covering. Alternatively the apertures may be circular, and they may be closed wholly or in part by a slide provided with gauze-covered apertures, or hinged or other forms of closures may be provided for the apertures in the board or rail. Specifications 229,938, [Class 40 (v)], and 522,806 are referred to.
Patent GB-977724-A (GB)
Title: Pregnane derivatives
Inventor: MEN JEAN LE
IPC: C07J75/00
Filed: 1962-01-30
Abstract: The invention comprises compounds of formula <FORM:0977724/C1/1> wherein X represents a keto group, a b -hydroxyl group and a hydrogen atom, or two alkoxy groups, X1 represents a hydrogen atom or a bond between the 4- and 5-positions, either one of L and M is a hydrogen atom and the other is a hydroxyl group or L and M together form a keto group, and either A, Z and Y represent hydrogen atoms and B represents a hydroxyl group, or A and Z together form a keto group and B and Y form a direct bond, and their preparation by reaction of paravallaidine, i.e. (20S)-3b -(N-methylamino)-16a , 20 dihydroxypregn-5-ene-18 carboxylic acid 18; 20 lactone, or a derivative thereof, for example dihydroparavalaidine, with a chlorinating agent to form the corresponding N-chloro-derivative, removing excess chlorinating agent by washing with water and treating the N-chlorinated product with a solution of an alkali metal alcoholate in an anhydrous alcohol to form the corresponding 3-keto compound, followed if desired by any of the following: (1) reducing the 3-keto group to a 3b -hydroxyl group by potassium borohydride, (2) formation of a 3-ketal or cyclic ketal, followed if desired by oxidation of a 16-hydroxyl group to a 16-keto group using chromium trioxide, or (3) splitting and reducing the lactone ring to form the 18, 20-diol by lithium aluminium hydride, with simultaneous reduction of any 3- or 16-keto group present to a b -hydroxyl group. Chlorinating agents specified are N-chlorosuccinimide and hypochlorous acid.  The compounds of the invention have a vasodilatory action on blood vessels, a sedative action on the central nervous system and on anti-ulcer effect.  Specifications 913,602 and 952,484 are referred to.
Patent GB-1026941-A (GB)
Title: Method and means for the reeling of rolled material
IPC: B21C47/06
Filed: 1964-01-28
Abstract: 1,026,941. Reeling. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Jan. 28, 1964 [Jan. 30, 1963; Aug. 26, 1963], No. 3505/64. Heading B3E. A method of winding rolled sheet material on to a reeling apparatus comprises pre-shaping the leading end portion of the material to a radius of curvature corresponding to that of the reeling mandrel, guiding the leading end to adjacent the mandrel and then moving it radially into contact with the mandrel and pressing it thereagainst so that the mandrel draws the material thereon. The leading portion of a length of rolled material 1 is fed to and pre-shaped to a radius of curvature slightly less than that of the reeling mandrel 6 by press tool dies 2, 3, and the material further advanced and guided and pressed into contact with the mandrel 6 by a roller 5. Subsequently, pressureapplying members 7, 8, which may be endless bands, are advanced and the idler 5 retracted to press the end against the mandrel which winds the sheet thereon, the members 7, 8 being retracted to allow for the growth of the coil. In a modification the pre-shaped portion is formed by movable rollers 9, 10, Fig. 7 (not shown), co-operating with a roller 11, the rollers also acting as tensioning means during reeling and an expanding mandrel is used to improve the frictional engagement with the sheet. Incorrectly formed portions are sensed by photoelectric means or mechanical sensing levers which effect actuation of shears 12, 13 to sever the portion from the sheet. Sets of rollers are advanced by hydraulic cylinder means to press the sheet against the mandrel and may be subsequently retracted during reeling. In a further modification, Fig. 11 (not shown), the sheet is drawn around rollers 24-28, through a pair of adjustable nip feed rollers 28, 29 between hydraulically actuated shaping dies 32, 33, between a fixed guide roller 35 and hydraulically advanced guide rollers 36, 37, the roller 37 being lowered, when a sensing means, e.g. photo-electric cells, senses that the shaped portion of the sheet is above the expandable mandrel, 39, to deflect the sheet end on to the mandrel. Subsequently sets of pressing rollers 52, 53, pivotally connected to slides 48, 49, are advanced by hydraulic cylinder means 44, 45 to press the initial layers against the mandrel which is also expanded before retraction of the rollers. A vertically adjustable and transversely movable carriage 56 is provided for removing the formed reel. The pressing roller sets 52, 53 may be replaced by pairs of side by side rollers 21, 22 having inter-engaging large and small diameters and guide plates 23, Fig. 12.
Patent GB-109580-A (GB)
Title: Improvements ralating to Wheels for Motor Road Vehicles.
Inventor: BAKER FRANK EDWARD
IPC: B60B23/02
Filed: 1917-03-13
Abstract: 109,580. Baker, F. E. March 13, 1917. Detachable-rim attachements to wheels; tyre attachments to rims.-The rim h is secured between the fixed and detachable disks a, b by transverse bolts n which also pass through lugs m fixed to the rim. The latter is of the expansible and contractible type and is held in the expanded form by a catch j which is pivoted at one end of the rim and engages a stud k on the other end, the catch being locked by a bolt l.
Patent GB-114020-A (GB)
Title: Improvements in and connected with Electric Switches.
IPC: H01H21/58
Filed: 1917-03-13
Abstract: 114,020. Stone & Co., J., and Darker, A. H. March 13, 1917. Switches.-In a railway lighting system the main lamp switch is in the form of a sliding railway-coach switch, the slider 4, carrying two bridging-contacts 5, four pairs of fixed contacts being mounted on the base. The contacts 6, 6a are connected to the dynamo terminal 8; the contacts 9, 9<a> to the No. 1 battery terminal 17; the contacts 11, 11<a> to the No. 2 battery terminal 18, and the contacts 14, 14a to the lamp terminal 16 throught the fuse 15. In its mid-position the lamp resistance is short circuited, the two end positions of the switch being the two " on " positions. A spring 20 entering a notch holds the slider in its off position. The leads from the dynamos &c are led through a divided wood block 23 held by tongues on the casing 21 entering grooves in the block. In a modification having two " on ' positions the moving contacts of the switch oscillate between fixed stops about a central " off " position, the fixed contacts being arc-shaped.
Patent GB-537884-A (GB)
Title: Improvements in or relating to compressor regulators
IPC: F04B35/06
Filed: 1940-02-28
Abstract: 537,884. Fluid-pressure servomotors. INGERSOLL-RAND CO. Feb. 28, 1940, No. 3701. Convention date, March 20, 1939. [Class 135] A compressor regulator for a fluid compressor driven by an internal combustion engine of the kind in which an unloading device in the form of a valve 159 can cut off the fluid (air) supply to the compressor when a given pressure is reached and in which a spring-loaded governor controls the speed of the engine so as to reduce the same when the pressure is high is constructed so that both controls are effected by motor fluid discharged from the compressor under the control of two pressure responsive valves 125 set to operate at different pressures. The valves control the supply of fluid from a pipe 43, connected to a reservoir fed directly by the compressor, to a cylinder 15 for operating the unloading valve, and to a chamber 23, in which slides a piston 27 provided with a stem 49 which controls the position of a spring-pressed arm 83 connected by an adjustable link to a lever which controls the spring governor of the engine. The piston 27 is pressed towards the right by a spring 51, and is fitted with a tapered spindle 45 which can close on a valve seat 39 formed in an adjustable bush 31 held in position by a lock-nut 33. In Fig. 2 the piston 27 is shown in a position corresponding to the closed positions of the valves 125, and in this position when the engine is started it rotates at an intermediate speed (860 r.p.m. say). As the pressure builds up the piston 27 moves to the right under the pressure of fluid admitted through the pipe 41 and the speed of the engine is raised to high speed which is controlled by an adjustable, stop 87 which limits the movement of the control lever 83. When the pressure reaches a certain value (90 lbs. per square inch say) the valve 125 in chamber 117 opens and fluid passes from the pipe 55 to the right hand end of. the cylinder 23 and balances the fluid pressure on the other side of the piston 27 so that the piston returns to the position shown in Fig. 2 and the speed of the engine returns to its intermediate value. If, however, the pressure continues to rise and reaches a value of 100 lb. per square inch the valve 125 in chamber 119 opens and pressure is admitted via a pipe 75 to cylinder 15 to operate the unloading valve 159. The admission of pressure to the pipe 75 opens up connection of the left half of cylinder 23 to a pipe 73 connected to atmosphere, and the piston 27 moves to the left to close the valve 45 on its seat 39 and thus reduce the speed of the engine to a minimum speed (600 r.p.m. say). The vent passage 57 is normally cut off from the pipe 73 by a ball valve 81 which is pressed upwards by the fluid pressure to cut off the connection. The valve seat 39 is adjustable to enable the minimum speed of the engine to be regulated. When the fluid pressure falls, the valve 125 in chamber 119 first closes and the engine speed increases to the intermediate value, and finally the valve in chamber 117 closes and the engine regains its maximum speed.
Patent GB-1468157-A (GB)
Title: Cable restraining means
IPC: H02G3/04
Filed: 1974-01-25
Abstract: 1468157 Supporting slack cable R HARRISON 25 Jan 1974 [25 Jan 1973 12 May 1973 25 June 1973 21 Aug 1973] 3706/73 22737/73 03526/73 and 39370/73 Divided out of 1369935 Heading B8B A cable guide comprises a backplate 1, a base 3 and at least a skeleton framework 4, the upper side of the channel being partially closed by a flexible strip 7 secured along one edge 8. In use the cable guide sections may be assembled alongside the path of a mini transporter or coal-cutting machine with an arm supported from the machine drawing the cable out of or laying it in the guide channel as the machine passes to and fro. The channel may contain a 180 degree loop of the cable constrained to lie in a vertical plane. Additional fixed cables may be carried by hooks 6. Brackets forming the skeleton framework may be secured to armoured face conveyer spillplates as described and claimed in Specification 1,468,158. For use on travelling crane 1 the guide may be formed by a plastics U-shaped member 20 and liner 24 between the flanges of an I beam girder, see Fig. 4. The U-shaped member may be an extrusion.
Patent GB-233769-A (GB)
Title: Improvements in machines for straightening sewing machine needles and the like
IPC: B21G1/00
Filed: 1924-02-13
Abstract: 233,769. Singer Manufacturing Co., Ltd., and Tivendale, W. Feb. 13, 1924. Needles.-In a machine of the type described in Specification 28625/10, [Class 83 (iv), Metals, Working], for straightening needles or the like, the needles are moved laterally while being axially rotated, over a series of anvils and under a gang of hammers adapted to act on the needles successively at spaced portions of the length thereof. The needles are fed singly from a hopper 14, which is closed by a barrel 25 having peripheral pockets 26, and are conveyed by oppositelyhanded conveyer screws 1, 2 of variable pitch, driven at equal speeds in opposite directions from a pulley 13, while further worm gearing 19 and spur gearing 23 actuates the barrel 25. The shank 15 of a needle rests on a bar 16 and the blade on a ledge 18, the needles being rotated during their translation by means of a rubberfaced sectional presser-bar 27. The hammers 35 are actuated by toothed cams 37, the impact being controlled in the manner described in Specification 28625/10, by means of levers 45 controlled by feeler contact devices 46 fitted with resilient arms 47 carrying an adjustable wedgeblock, which is constituted by a roller 48 interposed between a striking-shoulder 42 and a fixed abutment 49. The hammer helves are of unequal length and the anvils 50 are correspondingly displaced from the rock-shaft 39 so that the hammer blows are distributed along the needle blade. After completion of the hammering operation the needles pass beyond the bars 16 and 27 and fall through an opening 51 in the machine frame.