baber/WOPTO huggingface dataset:
Patent GB-1514357-A (GB)
Title: Portable fluid containers
IPC: B65D51/00
Filed: 1977-03-01
Abstract: 1514357 Portable containers; dispensing closures; metering BRITISH STEEL CORP 1 March 1977 [1 March 1976] 8051/76 Headings B8D B8N and B8T A non-spillable safety container for flammable liquids comprises an apertured inwardlycupped, e.g. conical, lid 2, and a reciprocable shaft 9 mounting a first cupped, e.g. conical, receptacle 12 at one end and a second cupped, e.g. conical, receptacle 13 towards the other end such that, in the lower shaft position, the second receptacle seals the lid aperture and, in the upper shaft position, the first receptacle seals the lid aperture and presents a measured quantity of liquid ready for use. The shaft is guided on a rod 8 upstanding from a conical base 3. The receptacles may be locked in their respective sealing positions by tangs 14 or 15 engaging bayonet-fashion in lugs 6 or 7. Alternatively, a spring catch operative between the shaft 9 and rod 8 may be provided to selectively lock either the upper or lower receptacle in engagement with the lid.
Patent GB-385275-A (GB)
Title: Improvements in or relating to steering gear for trailers
IPC: B62D13/04
Filed: 1931-03-16
Abstract: 385,275. Steering trailer vehicles ; road trains ; vehicle couplings. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. March 16, 1931, No. 8099. Convention date, March 15, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 79 (iii) and 79 (v).] Steering-gear for trailers capable of travelling in either direction and having two steering undercarriages is characterized in that, for the purpose of transmitting steering action from a front undercarriage to a rear undercarriage and vice versa, each of the undercarriages is provided with a cam operatively connected to the other undercarriage. In the construction shown each undercarriage is connected to the vehicle frame by a pivot 9 and carries a steering arm 8 having a pin 7 working in a slot 5 in a drawbar member 2 which is pivoted at 4 to the frame. Each undercarriage also carries a cam 10 adapted to be engaged by rollers 12, 14 on three-armed levers 16, 18 which are connected together by a pin 20 and are connected by rods 26, 28 to the other undercarriage so as to steer it when required. The pin 20 is carried by a slidable rod 32 which may be moved axially bv means of a hand-wheel 34 and screw. When the left-hand undercarriage of Figs. 1 and 2 is the leading one, the hand-wheel 34<1> at the other end is operated so as to sponding pin 20<1> and withdraw 141 from the cam 10<1> so that m rear undercarriage do not affect but the movements of the leading undercarriage are transmitted to the rear one in a manner depending on the shape of the cam 10. The angular movement of the leading undercarriage is less than that of the drawbar due to the disposition of the pivots 4, 9 relative to the pin 7. The drawbar member 2 is connected by a horizontal pivot 3 to the usual front part 1 which has a draw spring and a spring for the automatic brake. In making up a read train the part 1 of one drawbar is connected to the part 2 of the preceding vehicle by means of a fork member pivoted to the part 2 on the pivot 3.
Patent GB-1455076-A (GB)
Title: Magnetically insulated capacitor
IPC: H01G2/22
Filed: 1974-02-22
Abstract: 1455076 Capacitors; discharge apparatus F WINTERBERG 22 Feb 1974 [1 March 1973] 8107/74 Headings H1M and H1D A capacitor for storage and rapid discharge of large amounts of electrical energy comprises co-axial conductive or semi-conductive tori 1, 2, inner torus 1 being levitated within outer torus 2 with vacuum between them, a thermionic emitter 8 associated with outer torus 2 for introducing electrons into one space between the tori, a toroidal magnetic field coil connected to a periodically varying power source 4, 5 driving the electrons along paths 10 on to the inner torus whereby a charge accumulates thereon and a spark gap 11 between the inner torus and a guide electrode 15 levitated within discharge tube 12 for discharging electrons traversing the gap. Discharge tube 12 is electrically continuous with outer torus 2. Suitably the magnetic field also effects the levitation, in which case inner torus 1 and guide electrode 15 are at least in part of ferromagnetic material. Electrostatic or inertial levitation is also envisaged. As long as the magnetic field strength H in the vacuum between the tori is greater than the electric field strength E when both are expressed in c.g.s. units, the magnetic field will prevent discharge between the tori. As E approaches H, discharge occurs across the spark gap 11, electrons pass along guide electrode 15 through anode window 13 into drift tube 14. Alternatively the electrons may be magnetically focussed and guided. Unless the conductivities of the tori are low, gaps 6 and 7 therein, optionally filled with insulating material, are desirable for free flow of the magnetic field into the vacuum space. Torus 1 may be solid or filled with insulating or semiconducting material. Reference is made to the use of other than electrons as charge carriers, e.g. ions. The device may be used in the initiation of nuclear reactions, collective acceleration of charged atomic particles, in gamma ray flash tubes, in pumping of lasers, in microwave pulse generators and in radiation for medical purposes.
Patent GB-541756-A (GB)
Title: Improvements in or relating to lenses for vehicle lamps
IPC: F21V11/00
Filed: 1940-05-08
Abstract: 541,756. Lenses for vehicle lamps. PERRY, S. May 8, 1940, No. 8249. [Class 75 (ii)]  Vehicle lamps are fitted with lenses consisting of an outer concavo-convex part a having inwardly projecting cylindrical ribs c and an inner flat or concavo-convex part b having outwardly projecting cylindrical ribs e or inwardly projecting cylindrical ribs f or both outwardly and inwardly projecting ribs e, f. The parts a, b may be of the  same or different materials such as glass or a thermoplastic transparent or semi-transparent substance and may be amber-coloured or stippled or frosted. The ribs may be arranged concentrically and slots or holes may be formed in the part b between the ribs.
Patent GB-589939-A (GB)
Title: Improvements in fluorescent lighting systems
IPC: H05B41/232
Filed: 1945-04-04
Abstract: 589,939. Supply systems for space discharge tubes. MANDL, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd: April 4, 1945, No. 8299. Drawings to Specification. [Class 38 (iv)] In a space discharge lighting system for fluorescent or similar lamps supplied from an alternator, wherein each discharge lamp is shunted by a condenser in series with a resistance and connected across the alternator in series with a stabilizing inductance, a saturable inductance is shunted across the alternator terminals to prevent resonance conditions arising during starting operations. The tubes are struck by running the alternator at 150 per cent of normal speed and during this running- up period resonance may occur. The addition of the saturable inductance limits the E.M.F. of the alternator by reaching saturation before the resonance can occur.
Patent GB-1131481-A (GB)
Title: Improvements relating to apparatus for washing the wheels of road vehicles in situ thereon
Inventor: UNWIN KENNETH
IPC: B60S3/04
Filed: 1966-02-25
Abstract: 1,131,481. Washing vehicle wheels. WILLIAM MOSELEY (ENGINEERS) Ltd. 24 May, 1967 [25 Feb., 1966], No. 8325/66. Heading B7J. Apparatus for washing vehicle wheels 15-22 comprises two parallel frames each formed of longitudinal beams 1 and 2 connected by transverse members, the frames each having rotatably mounted in bearings thereon pairs of rollers 7, 8; 9, 10; 11, 12; 13, 14, the corresponding rollers in each frame being aligned axially and each pair being adapted to support a wheel of the vehicle, the rollers 7, 9, 11 and 13 each being associated with a disc brake 37, 38, 39 and 40 respectively operable in unison by a control 62, and rollers 7, 8, 9, 10, 13 and 14 each being respectively operatively connected with a pump 27, 28, 29, 30, 31 and 32 which supplies washing water to spray pipes 72-80. The spaces in between the rollers are fitted with wire mesh gratings 49-57. The front rollers 7-10 are driven by chain and cog arrangements 41-45 from the rollers 11, 12 which are rotated by the driven wheels 19, 20 of the vehicle. The corresponding pairs of rollers 11, 12 and 13, 14 are connected by links 81, 82. Arrangements 41-45 are located in oil baths. The rollers are prevented from rotating only when the vehicle is driven on or off the rollers. The front rollers may alternatively be driven through a prop. shaft, differentials and a gear-box.
Patent GB-982372-A (GB)
Title: Fire-resistant hydraulic fluids
IPC: C10M173/00
Filed: 1961-03-07
Abstract: A composition for use as an hydraulic fluid comprises a water-in-oil emulsion containing in the oil phase minor amounts of an oil-soluble calcium petroleum sulphonate having a molecular weight of at least 900 and stabilized by a mixture of the calcium salts of at least one aliphatic acid having a chain length of at least 16 carbon atoms and at least one naphthenic acid of molecular weight at least 315.  The calcium salts including if desired the calcium sulphonate may be formed in situ by adding lime to a solution in oil of the corresponding acids. Up to a 100% excess of lime over the stoichiometric amount may be added.  The compositions may include mixed octylated and styrenated diphenylamines as antioxidants.
Patent GB-761091-A (GB)
Title: Process for the production of thiobarbiturates
Filed: 1954-03-23
Abstract: The invention comprises 5 : 5-dicrotylthiobarbituric acid and its alkali metal salts.  The products are made by (1) condensing an ester of dicrotyl malonic acid with thiourea and an alkali metal alcoholate; (2) by condensing an alkyl ester of dicrotyl-cyano-acetic acid with thiourea and an alkali metal alcoholate to form 4 - imino - 5 : 5 - dicrotyl - thiobarbituric acid which is hydrolysed with concentrated mineral acid; or (3) by sulphurizing 5 : 5-dicrotylbarbituric acid or one of its alkali-metal salts, e.g. by heating with phosphorus pentasulphide in a high boiling inert solvent.  Methods (1) and (2) are preferably carried out in methanol, using sodium methylate as the condensing agent.  Starting materials. Methyl dicrotyl-cyano acetic acid ester is made by treating methyl cyanoacetic acid ester with crotyl bromide in the presence of sodium methoxide.
Patent GB-853293-A (GB)
Title: Cyclopentanophenanthrene derivatives and process for the preparation thereof
IPC: C07J1/00
Filed: 1957-01-04
Abstract: The invention comprises compounds of the general formula : <FORM:0853293/IV(b)/1> wherein R1 represents hydrogen or an acyl group of less than 12 carbon atoms, and a process for their preparation by reacting the corresponding 2-unsubstituted androstane with ethyl formate and sodamide preferably in benzene and under nitrogen.  Examples detail the preparation of the parent 17-ol and its acetate, propionate, cyclopentylpropionate and benzoate esters.
Patent GB-1078782-A (GB)
Title: Improvements in or relating to electronic circuits
Inventor: PARKER BARRY NORMAN
IPC: G06V10/28
Filed: 1963-03-04
Abstract: 1,078,782. Transistor pulse circuits. CROSFIELD ELECTRONICS Ltd. Feb. 28, 1964 [March 4, 1963], No. 8552/63. Heading H3T. In a circuit for supplying pulses corresponding to peak values in an input waveform, the input waveform is fed both directly and by a delay device to a regenerative comparator which generates an output pulse when the instantaneous value of the delayed waveform is substantially equal to that of the undelayed waveform. As shown, input signals at terminal 1 are fed via a transistor 3 and a pair of emitter followers 4, 5 to an input line 6 of a comparator 7. Signals are also delayed at 11, 12 and fed via a further pair of emitter followers 13, 14 to a second input line 15. The comparator 7 consists of a blocking oscillator comprising transistor 20 and a transformer having regenerative feedback via windings 22 and 27 and degenerative feedback via windings 22, 28. Initially diode 26 is conductive so that the degenerative winding 28 is in use, inhibiting oscillation, but when the amplitudes of delayed and undelayed waveforms are substantially equal, diode 26 becomes non-conductive and diode 29 conductive, introducing the regenerative winding 27 and allowing the blocking oscillator to generate a pulse. This pulse sets a bi-stable circuit 23, one output of which is amplified at 30 and turns on a switching transistor 24 which short-circuits an inhibit winding 25, coupled to winding 22, which prevents generation of further pulses. The bi-stable circuit 23 is reset by a similar comparator comprising NPN transistors 8, 16, 21 when the voltages of the negative half cycles of the direct and delayed waveforms are substantially equal. Biasing diodes 36, 37 are included to provide a predetermined difference in D.C. levels of the direct and delayed signals. This arrangement makes the system insensitive to pulses having less than a predetermined amplitude and thus prevents detection of unwanted spots of magnetic ink when the invention is applied to a character recognition system.
Patent GB-550530-A (GB)
Title: Improved method and means for throwing depth charges
IPC: F42B14/02
Filed: 1941-07-09
Abstract: 550,530. Depth-charge projector. THORNYCROFT & CO., Ltd., J. I., and THORNYCROFT, Sir J. E. July 9, 1941. No. 8652. [Classes 9 (i), 9 (i i) and 92 (ii)] Apparatus for throwing cylindrical, flat-ended depth charges from a gun barrel includes a light gas-tight wad or piston having a cylindrical rim bounding a concave centre presented to the flat end of the charge. The arrangement is such that the propellent gases introduced to the rear of the wad have their pressure transmitted to the rim of the charge without coming into contact with the flat end thereof. In the form shown, the cylindrical depth charge 8 rests in the barrel 2 on the rim 10 of a dished metal piston or wad 9 which in turn is supported by a surface 5a on the gas chamber 5. Gases from the explosion chamber 3 enter the chamber 5 through a passage 4 and expel the depth charge by force applied through the rim 10 of the piston. The piston is provided with one or more piston rings 11. Specifieation 530,647 is referred to.
Patent GB-567682-A (GB)
Title: Process for preparing carotenoid concentrates from palm oil
Filed: 1943-05-31
Abstract: A carotenoid pigment concentrate is prepared from palm oil by alcoholizing palm oil with a low molecular weight aliphatic monohydric alcohol in the presence of an alkaline alcoholysis catalyst, distilling off the alkyl esters so formed and concentrating the carotenoid pigment in the residue of the distillation.  It is an essential feature of the process that the temperature of the distillation and concentration should be kept low.  In all cases below 150 DEG  C.  If the concentrates are to be exposed to an elevated temperature over an extended period, the temperature should not exceed 140 DEG  C., or preferably 130 DEG  C.  As alkaline alcoholysis catalyst there is employed sodium or potassium hydroxide, or a preformed alkali metal methoxide or ethoxide.  The palm oil may either be refined before use or not. In the latter case, an excess of the alkaline alcoholysis catalyst is used to neutralize the free fatty acids present.  The alcoholized reaction product comprises the acyl esters of the monohydric alcohol, excess alcohol, carotenoid pigment, catalyst in solution and liberated glycerine.  The glycerine may either be removed by distillation or preferably by a separate process prior to the distillation.  If this is the case, it is carried out by a water washing.  In order to prevent the formation of emulsions it is desirable to render the catalyst inactive by treatment with an equimolecular quantity of an acid reacting substance such as phosphoric acid.  In an example, sodium hydroxide is dissolved in methyl alcohol and alkali refined palm oil is then added and the mixture refluxed for one hour.  On cooling, the glycerine which forms the lower layer is separated off, and the upper layer is washed first with a water-alcohol solution and then with water alone.  After drying, the mixture is distilled at 0.04 mms. pressure at 135 DEG -140 DEG  C.  The distillate consists of the alcohol esters of the palm oil fatty acids and is of very light colour. If a small column is used, a completely white product may be obtained, together with a residue of the carotenoid pigment. Specification 531,226 is referred to.
Patent GB-436711-A (GB)
Title: Improvements in or relating to hedge clippers
IPC: A01G3/053
Filed: 1935-03-20
Abstract: 436,711. Hedge - cutting machines. LLOYDS & CO. LETCHWORTH, Ltd., and LAWRENCE, J. P., Pennsylvania Works, Letchworth, Hertfordshire. March 20, 1935, No. 8724. [Class 6 (ii)] In a hedge-clipper comprising two toothed blades relatively reciprocable with a non-rectilinear motion the teeth of one or both blades are gulleted, serrated, or similarly mutilated so as to grip the twigs &c. and prevent them from moving from between the teeth without being cut. One blade 11 may be fixed and the other 6 reciprocated by a connecting-rod 7 and a crank disc 3 driven by an electric motor 1 mounted on the handle 5 and supplied with current through an insulated lead 4. Pins 14 on the blade 11 extend through arcuate slots 13 in the blade 6 so as to cause the latter to move transversely as it moves longitudinally. The edges of the teeth 9 of the blade 6 are provided with serrations or gullets 12 which slope downwardly away from the outer ends of the teeth. The slots 13 are normally covered by plates 15 which may be turned about the pins 14 to allow of access to the slots for oiling. Both blades may be arranged to be driven from the motor.
Patent GB-698905-A (GB)
Title: Improvements in woven fabrics having fold lines
IPC: A41B5/00
Filed: 1951-04-16
Abstract: 698,905. Fabrics having fold lines. PHILLIPS-JONES CORPORATION. April 16, 1951 [June 7, 1950], No. 8753/51. Class 142 (iv) A fold in a collar or other two-ply fabric consists of flexing lines F, having neither back warp threads b nor stuffer warp threads s, alternating with non-flexing lines N from which only the back warp threads are omitted, the lines being demarcated by pairs of binder warp threads t. To counteract curling up of the points of the collar, a slight opposite tendency can be imparted by lines having gut warp threads but no back warp threads alternating with lines having a full complement of warp threads. A lining for a necktie is woven with a concave curve between two convex curves.
Patent GB-441358-A (GB)
Title: Improvements in the discharge outlets of sinks, baths and the like
IPC: E03C1/262
Filed: 1935-03-20
Abstract: 441,358. Waste and overflow fittings for baths &c. COCKBURN & CO., Ltd., M., Gowanbank Iron Works, and LEISHMAN, D., 18, Phillip Street, both in Falkirk. March 20, 1935, No. 8760. [Class 26] In a sink, bath, &c. having below the bottom thereof a drainage chamber 12 having an outlet 14 above which is disposed a removable strainer 22, the outlet is provided with a plug 24 having an operating-stem extending through and movable within the strainer, the latter being so arranged within the chamber as to leave sufficient space to accommodate the plug in the open position. The chamber 12 may have an extension 17 in which the waste-pipe 15 is secured in position by a flange 18 and an external nut 20 ; the extension communicates with the waste-pipe by apertures 29 and also with the overflow. The plug may be supported in its raised position by a bayonet-joint arrangement, and the depth of the chamber 12 is one-and-a-half times that of the strainer. A grating 30 disposed above the apertures 29 is also provided.
Patent GB-492533-A (GB)
Title: Improvements in systems for controlling variable characteristics such as temperature
IPC: H05B1/02
Filed: 1937-03-25
Abstract: 492,533. Actuation of valves. ELECTROFLO METERS CO., Ltd., and ENGEL, F. V. A. E. March 25, 1937, No. 8806. [Class 135] [Also in Groups XXXV and XXXVII] A system for controlling automatically or at will, temperature, pressure, or any other variable characteristic, wherein controlling impulses are regularly supplied which are variable in duration, comprises means such as rollers moving in a circular path at constant speed and adapted to be deflected from that path to operate periodically a switch, valve or other regulating member by adjustable means determining the length of the period of operation. The rollers or other means may be deflected inwardly or outwardly. Fig. 2 shows four rollers 14 carried by arms 12 and held by springs 15 in contact with relatively adjustable cams each of which has a depression 18, 19 extending over 90‹. The rollers pass in contact with an arcuate plate 24 fast on a lever pivoted at 22 and carrying a mercury switch 20 in the heating circuit of a furnace, for example, or operate a valve or valves, regulating the supply of fuel, or of fuel and air. If the cams are adjusted to provide between them a depression each roller as it passes will cause the switch to be closed, or valve to be opened for a period depending on the length of the depression. Fig. 10 shows a quadrant 4 causing each roller to be outwardly deflected for 90‹ of its path and a member 70 with which the rollers engage to tilt a mercury switch 75 for a period determined by the angular displacement between the point a on the member 70 and the point b on the quadrant 4. The adjustable element in each of these arrangements may be manually actuated, or automatically controlled by a member which is responsive to the controlled condition and controls alternative circuits to a reversible motor. The transmission ratio between this motor and the adjustable element may be variable so that each adjustment may produce the same percentage change in the duration of the period of operation of the regulating member or switch. Thus a cam 30, Fig. 4, may be driven by the motor and the cam follower operating the spindle of the adjustable element may be geared to an indicating pointer to show on a scale the percentage input to a furnace, for example. A quick adjustment may be effected by solenoid mechanism 36, 37 connected between the motor spindle and cam to cause a limited displacement thereof when the motor is energized. This quick adjustment may be graduated according to the extent of deviation of the controlled condition by additional switches for the solenoid mechanism. Alternative to displacement of the cam 30, one of the relatively adjustable cams 2 in the construction shown in Fig. 2, may be similarly adjusted by solenoids 55, 56 as shown in Fig. 6, or by bimetallic elements similarly arranged.
Patent GB-1089843-A (GB)
Title: Improvements in or relating to powered horticultural or like machines
Inventor: HARGREAVES DEREK BURTT
IPC: B62D51/04
Filed: 1964-03-03
Abstract: 1,089,843. Cultivating machines. "SISIS" EQUIPMENT (MACCLESFIELD) Ltd. Feb. 22, 1965[March 3, 1964], No. 8822/64. Heading A1B. A power driven cultivating machine has a height adjusting mechanism which comprises a roller 21 mounted at each end or bell crank levers 22, and a spindle 26, with adjustment screws 27, 28 thereon, which passes through a rod joining the levers. The rearmost end of the spindle is secured to a lever 29 which is secured on a pivotable shaft 30 and which is lockable by clamping means 32 in the operative or inoperative positons of cultivator tool 16 shown in chain and full lines respectively or in any position between those shown. An alternative embodiment (Fig. 1, not shown) does not include the lever 29, but has the spindle connected directly to the machine frame.