baber/WOPTO huggingface dataset:
Patent GB-1474723-A (GB)
Title: Apparatus for determining the content of alcohol in the breath
IPC: G01N27/04
Filed: 1974-07-24
Abstract: 1474723 Measuring alcohol content in breath electrically CSS CONTAINER STORAGE SERVICE ESTABLISHMENT 24 July 1974 [24 July 1973] 32688/74 Heading GIN A transducer for measuring the alcohol content in breath comprises a Taguchi cell consisting of a coil 2 Fig. 1 and a filament 3, embedded in a porous body 5. The coil 2 is heated with D.C. and the alcohol in a gas fed to the transducer is oxidized, thereby reducing the resistance between coil 2 and filament 3, and a proportional current flows in a circuit containing a meter 7 which indicates the alcohol concentration. Tapping points are taken from the circuit to a transistor 9 to make it conduct at a pre-set value of alcohol concentration and energize a relay 10 which is used to inhibit the ignition circuit of a car. An intending driver blows through a tube 31 Fig. 2 against a hinged disc 33 which pivots to operate a switch 12 and allows the gas to reach the transducer body 5. If the alcohol content is sufficiently low, a holding circuit is completed for relay 20 and ignition coil 18 is energized via switch 21. In an alternative portable embodiment, the coil 2 is heated with A.C. and a plurality of transistors 9 are each associated with an indicator lamp for different alcohol levels.
Patent GB-1292271-A (GB)
Title: Packaging apparatus
Inventor: SKINNER EDWARD ALBERT
IPC: B65B19/34
Filed: 1968-07-09
Abstract: 1292271 Packaging articles AVDEL Ltd 3 Oct 1969 [9 July 1968] 32712/68 Heading B8C Apparatus for packaging articles, e.g. hollow rivets having a bore therethrough and in end to end relationship comprises packaging material feeding means, article feeding means, packaging means 12, 13 for enclosing the succession of articles in the packaging material 15, 16 to form an elongated package, in which the article feeding means comprises a tube like guide 17 defining an internal passageway through which the succession of articles is fed and from which they emerge at the packaging station. As shown, rivets are supplied to the top of the guide 17 by means of a vibratory hopper 81 and pass downwards to form a column, the lower end of which enters a nip 14 between a pair of rollers 12, 13 over which is fed tapes 15, 16, 23 which are drawn between the nip 14 from reels 52, 47 and 61 respectively. The tape 15 is of paper, the tape 16 is of adhesive transparent plastics material and the tape 23 which is disposed between the tapes 15, 16, is of a narrower vinyl plastics material. The strip package emerges below the nip 14 where it is perforated at regular intervals by a perforator comb 18 on the roller 12 before passing down a guide tube 91 into a nip 22 between a pair of stripper rollers 19, 21 which are rotated at a higher speed than the rollers 12, 13, whereby to break the strip at the perforations. Sensing devices 98, 99 ensure that the tape feeds are only operative when a column of rivets equal to the length of one perforated package is present in the tube 17. Downward movement of the rivets is assisted by a vibrator 241 and by compressed air applied to the bore of the tube 17 through bores 68, the air being exhausted through pairs of slots (69), (71), Fig. 8 (not shown), and 72, 73. A pair of micro-switches 111, 112 is associated with rollers 12, 13 to sense wrapping of the strip around the rollers due to a fault. A counter 43 is provided to count the package lengths passing through the rollers 12, 13. The apparatus is controlled automatically by an electrical circuit, Fig. 7 (not shown). In a modification, Figs. 11 and 12 (not shown), the rivets are urged downwardly into the nip 14 by a driven wheel which protrudes into a slot in the wall of the tube 17. In another arrangement, Figs. 13 and 14 (not shown), only two tapes are used, each being coated with a low tack latex film and the apparatus includes minor modifications of the arrangements described above.
Patent GB-1077445-A (GB)
Title: Improvements in or relating to block polymers
IPC: C08G18/10
Filed: 1964-08-12
Abstract: Block copolymers having both addition polymer and condensation polymer blocks are prepared by reacting (a) at least one monomer having terminal ethylenic unsaturation and being capable of polymerization by a free radical mechanism, (b) at least one condensation prepolymer which contains at least one isocyanate group but which does not contain unsaturated aliphatic carbon-carbon bonds, and (c) a dual functional free radical initiator having at least one group which may decompose to give free radicals and at least one substituent having an active hydrogen atom or atoms capable of reacting with isocyanate groups, reaction being effected at a temperature sufficiently high to initiate formation of the polymer. In a modification, the dual functional initiator may be replaced by a mixture of any free radical initiator and a chain transfer agent having a disulphide linkage and at least one reactive substituent as previously defined.  The reactants (a), (b) and (c) may be reacted simultaneously, or one of (a) and (b) may be reacted first with the initiator (plus chain transfer agent where appropriate) and the product obtained then reacted with the remaining component. Suitable monomers (a) include vinyl chloride, vinyl acetate, vinyl ethers, styrene, methyl vinyl ketone, vinylidene chloride, acrylic, chloracrylic and methacrylic esters, acrylonitrile, methacrylonitrile, butadiene, isoprene and chlorprene. Prepolymers (b) specified are isocyanate-terminated polyethylene oxide, polypropylene oxide, polytetramethylene oxide and the polyester derived from adipic acid, ethylene glycol and proylene glycol. The dual functional initiator may be a peroxide, azo compound or polysulphide additionally containing one or more of the following groups reactive with isocyanates: -OH, -COOH, -SH, NH2 and -NH-; several examples of these are given. Chain transfer agents specified are those of the formula X-C6H4-S-S-C6H4-X where X is -CH2OH, -COOH, -CH2COOH or -NH2.  The reaction mixture may optionally include cross-linking agents, e.g. ethylene glycol dimethacrylate or trimethylolpropane, curing agents, e.g. diols, diamines, polyols and polyamines, and terminators, e.g. mono-alcohols or -secondary amines. In the examples, a small amount of pyridine is included in the reaction mixture.
Patent GB-437485-A (GB)
Title: Improvements in and relating to the finishing of woven and knitted fabrics
IPC: D06M11/38
Filed: 1934-11-15
Abstract: In a finishing process for woven and knitted fabrics of cellulose fibres so as to render them non-shrinking, the unfinished fabric if desired after cleaning is treated with alkaline lye, excess lye expelled if necessary by passing the fabric between pressure rollers, and then the unrinsed fabric wound under rolling pressure and left so wound for a period, e.g. 2 hours, then left loose for about 12 hours if desired with partial drying and finally washed and neutralized. The concentration of the lye may be adjusted for any desired degree of shrinkage or to suit the stretching which occurred during the weaving or knitting of the fabric.  Wetting-agents may be added to the lye, while, to control the degree of shrinking, glycerine, alcohol or acetone may be added.
Patent GB-451901-A (GB)
Title: Hydraulic shock absorber, applicable in particular to the suspension of vehicles
IPC: F16F9/18
Filed: 1935-11-27
Abstract: 451,901. Hydraulic shock-absorbers. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M., 1, Route des Alpes, Fribourg, Switzerland. Nov. 27, 1935, No. 32906. Convention date, Dec. 22, 1934. [Class 108 (iii)] A double-acting hydraulic shock-absorber comprises two chambers C<1>, C<2> of variable volume arranged so that when the moving member of the shock-absorber is displaced in one direction the shock-absorbing effect is produced in one chamber while the other chamber is filled with liquid through a large passage or passages communicating for example with a reservoir R common to both chambers, the manner in which each chamber functions being reversed on displacement of the moving member of the shock-absorber in the other direction, each of the chambers having two sets of openings formed in a fixed part thereof, one constantly-open, small set for throttling the flow of liquid and another valved set for allowing passage of liquid freely in the direction to ensure rapid filling of the respective chamber. As shown in Fig. 1, on compression of the shock-absorber, liquid is forced by the piston 1 through an adjustable, restricted aperture 6 into a conduit 5a and up through the hollow piston-rod 5 into the reservoir R the upper portion o f which is filled with compressed air. At the same time liquid passes freely through openings 9 into the chamber C<2>. On expansion of the shockabsorber liquid is forced from the chamber C<2> through restricted apertures 8 in the partition 4, the openings 9 being closed by valves 9<a>, while liquid enters the chamber C<1> freely through openings 7. Grooves 10 in the rod 5 also permit a restricted flow of liquid for both directions of operation of the shockabsorber. In another construction, Fig. 2, the chambers are formed between partitions 14, 14a fixed in a cylinder 11 communicating freely with the reservoir R, and pistons 12, 12<a> connected by a rod 13 which may have grooves 18, 18<a>. The partitions have restricting orifices 17, 17<a> and large orifices 15, 15<a> controlled by valves 16, 16<a>.
Patent GB-1379213-A (GB)
Title: Hydromechanical transmissions
IPC: F16H47/04
Filed: 1973-07-12
Abstract: 1379213 Hydro-mechanical variable-speed gear GENERAL MOTORS CORP 12 July 1973 [9 Aug 1972] 33185/73 Heading F2D A transmission providing infinitely variable low and high range drives comprises co-axial input and output shafts 10, 12, planetary gearing arranged circumjacent the input shaft and comprising an input sun wheel 18, a pair of planetary output members 20, 26 connected by a carrier 24 with the output shaft, a first hydraulic drive member constituted by a sun wheel 28 connected by gearing 54, 56 with one shaft 62 of a variable-ratio hydraulic transmission comprising pump/motor units 66, 64 of variable, positive displacement, the shaft 62 being parallel to and radially displaced from the input shaft 10, a second hydraulic drive member constituted by a ring gear 22 connected by gearing 34, 36 with a second shaft 60 of the hydraulic transmission, the shafts 60, 62 being co-axially aligned, and a reaction member 30 operatively connected to a selectively engageable brake 38 of which a portion is disposed intermediate the planetary gearing and the hydraulic transmission. Low range is established when a fluidpressure operated clutch 58 is disengaged and the brake 38 is applied by a fluid-pressure actuator 42. Then, with the unit 66 at maximum displacement and the unit 64 at zero displacement, the sun 28 is held, whilst the ring gear 22 may rotate freely so that no drive is transmitted to the output shaft 12. As the displacement of the unit 64 is increased from zero to maximum the sun 28 is driven at increasing speed to drive the carrier 24, and the resistance to rotation of the ring gear 22 increases, whereby a splittorque drive is established to the output shaft, and when the unit 64 reaches maximum displacement, the speed of the output shaft is further increased by progressive reduction of the displacement of the unit 66. When this displacement reaches zero the unit 64 holds the ring gear 22 stationary so that the planets 26, which have the same number of teeth as the planets 20, rotate the sun 28 at the same speed as the input shaft. High range may then be established by engagement of the clutch 58 and release of the brake 38, whereafter further increase in output speed is obtainable by increase of displacement of the unit 66. Reverse drive in low range is obtainable by reverse adjustment of the displacement of the unit 64.
Patent GB-194397-A (GB)
Title: Means for holding flexible abrasive, polishing or like material
IPC: B24D15/02
Filed: 1921-12-10
Abstract: 194,397. Towl, L. Dec. 10, 1921. Tools.-Abrasive, polishing, or other flexible sheet material B is mounted upon a holder which comprises a tapered metal casing A, the front face of which may be flat, or of convex, concave, or V-section, and is secured at one end by turning the end of the sheet into the casing and wedging it therein by means of a tapered handle C, the other end of the sheet being folded round the thinner end of the casing and held by a clamp at the back of the casing. The clamp comprises a slotted plate F and an L-shaped plate E which are pressed together, to hold the sheet, by screws E<1>. The slot in the plate F fits over the rectangular head D' of a stud D secured to the rear of the casing; the sheet is stretched by movement of the plates and is held in position bv a nut D<2> and a washer D<3> on the stud. The plate E may be provided with a knob or rounded surface to receive the pressure of the left hand. According to the Provisional Specification, the handle C may be integral with the casing, a separate wedge being provided to hold the end of the sheet B.
Patent GB-979969-A (GB)
Title: Improvements relating to battery installations for vehicles or aircraft
Inventor: BENNETT ALBERT EDWIN
IPC: B60L50/10
Filed: 1962-08-29
Abstract: 979,969. Systems depending on two or more sources; self-contained supply systems with variable-speed generators. J. STONE & CO. (DEPTFORD) Ltd. Aug. 9, 1963 [Aug. 29, 1962], No. 33203/62. Heading H2H. To prevent starting difficulties in a vehicle or aircraft two batteries 2, 4 are provided to supply respectively the starter circuit 3 and a lighting or like load 5, a diode 6 ensuring that the starter battery 2 cannot supply the load 5. The batteries are charged from a generator 1 and a resistor 7 limits the diode current. This resistor may be inserted in the lead to battery 4, Fig. 2 (not shown) or there may be a resistor in each battery lead, Fig. 3 (not shown). The resistor(s) may be used to control the division of charge between the batteries, and a voltagesensitive relay may be connected across the battery 4 to prevent over-discharge.
Patent GB-332631-A (GB)
Abstract: 332,631. Cellophane, Soc. Anon. Feb. 21, 1929, [Convention date]. Apparatus for making films; modifying physical properties of formed cellulose articles.-Uniform treatment with gas of cellulose and like films is ensured by rolling up with the fims a gaspermeable band of paper, fabric, &c. of approximately the same width as the film. The process is applicable to the developing with ammonia gas or films sensitized with a diazo compound and a phenol. The composite roll may be introduced into a box through which is passed a current of the gas either in the pure state or diluted with air or other gases. For the memoval of residual gas, the film may be unrolled in a moist, warm atmosphere; alternatively, the roll may be introduced into a current of air'charged with moisture and at a temperature preferably not lower than 100‹ C., or the roll may be introduced into the vapour space of an autoclave containing in the lower part water or saline solution and connected to a vacuum pump in order to create an atmosphere of low pressure steam, and the portion of the autoclave containing the roll may be maintained at a temperature higher than that of the water. Before introduction into the autoclave, the film may be heated in order to prevent deposition of moisture, and the steam may be superheated or used at a pressure above or below atmospheric; superheating of the steam serves to dry the film. The treatment with gas and the removal of residual gas may be carried out in the same apparatus; and a vacuum may be produced in the apparatus before admitting the reacting gas.
Patent GB-604953-A (GB)
Title: Apparatus for mixing vaporized fuel with coal gas
IPC: B01F33/40
Filed: 1945-12-10
Abstract: 604,953. Mixing coal gas with a vaporized fuel. WARD, Ltd., T. W.., and LOVEY, B. M. Dec. 10, 1945. No. 33348. [Class 55(ii)] Apparatus for mixing a vaporized fuel such as butane with coal gas comprises a tee-socket 22 connected to the coal gas supply and to an inlet pipe 20 where the cross-sectional area of the flow passage is abruptly reduced and where the vaporized fuel is admitted from a high pressure storage vessel passing through a reducing valve 27 for controlling the flow of vapour, a non-return valve 28, a coiled copper tube 32 and discharging into the coal gas stream through a nozzle 31 for mixing in the chamber 10 which is filled with non- ferrous gauze. The heat generated by friction at the tee-socket as a result of the reduction of the'cross-sectional area of the flow passage is absorbed by the copper tube and prevents the fuel vapour freezing.
Patent GB-1475386-A (GB)
Title: Continuous-etching machines
IPC: C23F1/08
Filed: 1974-07-29
Abstract: 1475386 Etching apparatus SIEMENS AG 29 July 1974 [31 July 1973] 33353/74 Heading B6J In a continuous etching machine having means for imparting translatory movement to the workpiece holders 9 to move the holders between etchant spray nozzles 10 the holders are simultaneously rotated about an axis at right angles to the translatory path. As shown, the holders are gripped between lower endless conveyer 7 and a more rapidly moving upper endless conveyer 6. The etching chamber 1 is followed by a water rinsing chamber 2 and an air drying chamber 3. Troughs 13 and 14 are for collecting excess etchant and water respectively. The holders 9 may comprise two discs held together by magnets and being provided with apertures for exposing both sides of a workpiece (held between discs) to the etchant.
Patent GB-333685-A (GB)
Abstract: 333,685. Callender's Cable & Construction Co., Ltd., and Richardson, A. B. F. G. June 21, 1929. Cores, covering by winding.-Each strip of covering material of a machine for winding paper strip &c. on to an electric cable &c. is deflected twice in its passage from the supply disc to the cable. The discs 2 are mounted upon spindles having axes inclined to the axis of the cable 6, and guides 3, 5 are so arranged that between them the strip 7 travels approximately parallel with the cable, and at the first guide the strip turns through approximately a right angle. Each of the guides is mounted so as to be adjustable angularly. The guides are also adjustable axially of the cable.
Patent GB-1081417-A (GB)
Title: Improvements in or relating to the manufacture of hoses
IPC: B29C48/00
Filed: 1964-08-14
Abstract: 1,081,417. Hose pipes. DYNAMIT NOBEL A.G. Aug. 14, 1964 [Aug. 14, 1963], No. 33391/64. Heading F2P. A hose comprises an outer easing manufactured from natural or synthetic fibres by weaving, knitting or braiding and an inner lining consisting of an extruded tube of synthetic thermoplastic material, joined by heat and pressure to the outer casing. The tube 1 may be wound on to a storage drum after extrusion and thence to rollers 3 or may be extruded directly to the rollers 3. The tube passes through the rollers 3 where adhesive 4 is spread over its outer surface and then is expanded either by liquid 5 within the tube or by a shaped body 6 maintained in position by rollers 13 while a loom 11 weaves, knits or braids an outer hose casing 12 around the tube. Heat is supplied at H to bond the layers. The completed hose is further compressed by rollers 13 and guided to a storage reel. The hose may be of polyurethane or polyamide as may be the adhesive.
Patent GB-334427-A (GB)
Abstract: 334,427. Horsley, G. r., and Imperial Chemical Industries, Ltd. Oct. 21, 1929. Acetaldehyde is produced by the interaction of acetylene and steam at elevated temperature, using as catalyst zinc oxide activated by a small quantity of molybdate or molybdic acid. In the preparation of the catalyst, zinc oxide may be treated with excess of a dilute solution of a molybdate or molybdic acid, then filtered, dried, and heated. The product contains about 1 per cent M0 O3. In a preferred form of the invention, a mixture of acetylene and steam is passed over the catalyst so prepared, the temperature being between 300‹ and 350‹ C. An excess of steam is usually employed. The catalyst may be in the form of pellets, or it may be mixed with a carrier such as asbestos. To extract the aldehyde formed, the bulk of the water vapour may be removed as hot water. The remaining gases may be washed with cold water to extract the aldehyde, and the residual acetylene returned to the process. Specification 154,579 is referred to.
Patent GB-778675-A (GB)
Title: Improvements in air brakes for aircraft
Inventor: WEBBER FRANK
IPC: B64D27/02
Filed: 1954-11-19
Abstract: 778,675. Aircraft air brakes. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G. July 15, 1955 [Nov. 19, 1954], No. 33511/54. Class 4. [Also in Group XXIX] An aircraft air brake includes a flap 15 hinged on each side of the aircraft body forward of the tail and carried by two hinge members 12, 13, Fig. 4, one, 12, having one end pivoted to the body and the other end pivoted to the flap at 14 substantially at its centre of pressure, the other member 13 being pivoted to the body and flap at points spaced from the pivots of the member 12, with means for moving the two flaps simultaneously, the hinge members being arranged so that the centre of pressure of each flap moves initially, radially and then substantially radially with slightly increasing deviation from the radial direction. In Fig. 4, the arrow N points to the nose. Each member 13 is one part of a bell crank lever 13, 19, pivoted on a bracket 18, the arm 19 being pivoted to the body of a hydraulic valve 28 the valve rod 27 of which is attached by a bell crank lever to a rod 25 pivoted to a lever 24 mounted on a rotatable shaft. Each valve 28 controls a jack 20 operating between a pivot 21 on the fuselage and the flap 15, so that rotation of shaft 24 causes actuation of the jacks 20 until the valve bodies 28 are moved to re-centre the valve rods 27. In Fig. 5, each flap 31 is pivoted on two members 32, 33, the former being pivoted to the fuselage on a bracket 34, and the latter mounted on a shaft 35. A control rod 44 operates the piston 41 of a valve 40 pivoted at 39 to one member 33, the valve controlling the operating jack 38. In this embodiment, the flap 31 and hinge member 32 together form a smooth fairing in the retracted position shown in full lines, see Fig. 8 (not shown).
Patent GB-468031-A (GB)
Title: Improvements in or relating to oxy-acetylene cutting machines
IPC: B23K37/02
Filed: 1936-12-07
Abstract: 468,031. Dividing by fusion. ELLIS, L. S. E. (Messer & Co., Ges.) Dec. 7, 1936, No. 33581. [Class 83 (iv)] The casing of a portable blowpipe cutting machine is provided with a separate motor for driving a blower or fan for sucking in air at the end of the casing away from the blowpipe so as to cool the machine. The blowpipe 5 is carried externally of the casing 1 which carries wheels 4 driven through gearing by an electric motor mounted in the casing. At one end of the casing is mounted a separate motor driving a fan 7 which sucks air into the casing through openings and blows it through the casing. The air escapes through openings at the other end of the casing and through lateral openings inclined in the direction of the blowpipe.
Patent GB-934419-A (GB)
Title: Improvements in or relating to circuit arrangements for storing information in non-linear capacitive storage elements
IPC: H04N3/15
Filed: 1960-09-30
Abstract: 934,419. Ferro-electric devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 30, 1960 [Oct. 2, 1959], No. 33635/60. Drawings to Specification. Class 37. [Also in Groups XXXIX, XL (a) and XL (b)] Non-linear capacitors used in the control circuits for the electroluminescent elements of a television screen (see Groups XXXIX and XL (b)) comprise a mixture of barium titanate and strontium titanate.