baber/WOPTO huggingface dataset:
Patent GB-680899-A (GB)
Title: Improvements in or relating to level controlling or indicating devices
IPC: G01C9/06
Filed: 1949-04-04
Abstract: 680,899. Photo-electric levelling control. SQUIRE, A. M., and SPERRY GYROSCOPE CO., Ltd. Feb. 2, 1950 [April 4, 1949], No. 9100/49. Class 40 (iii). In a level controlling device in which a beam of light passes through a bubble-type level to a photo-cell, a slotted screen is situated between the cell and the level. As shown, light from an electric lamp 5 supported by its contacts 6, 7 sends a beam of light through a cylindrical housing surrounding the glass level 13 and its bubble 14 and slotted above and below the level, to a photo-electric cell 28. Details of the level mounting are shown in Fig. 3. The curved glass bulb 13 is mounted in a forked tube 23 over the forks of which slides a tube 24 with a large aperture 26 at the top and a narrow aperture 27 below. The whole is cemented in a larger slotted tube 16 after initial adjustment of the level position about a pivot 25, and is then bolted above the photo-cell by a flange 17. The position of the bubble when the level is horizontal is such as to extend halfway along the aperture 26. Light passing entirely through liquid in the level to the photo-cell is brought to a focus at the lower aperture so that it passes unhindered to the photo-cell. If part of the path through the level is the bubble the light focuses at a point below the aperture 27 so that the aperture cuts off part of the light to the cell. Another photo-cell not visible is provided which is directly illuminated by the source and provides a balancing effect to eliminate errors due to voltage variations, for example. A lug is provided for attaching the device to apparatus to be controlled. The application of the device to controlling gyroscopes is mentioned.
Patent GB-592531-A (GB)
Title: Improvements in ultra high frequency oscillation generators of the reflection type
Inventor: PIERCE JOHN R
IPC: H01J25/24
Filed: 1944-05-12
Abstract: 592,531. Velocity - modulated tubes. WESTERN ELECTRIC CO., Inc. May 12, 1944, No. 9184. Convention date, Sept. 21, 1942. [Class 39 (i)] In a high-frequency oscillation generator a substantially parallel electron beam from a gun 25 is projected across a gap formed by grids 18 and 21, the beam being reversed after it has crossed the gap by a reflecting electrode 37, this electrode and grid 21 being so shaped that the reversed electrons travel along paths passing beyond the periphery of grid 18. The cathode of the electron gun has a cup-shaped projection 32 and is arranged to give a hollow cylindrical beam of electrons. The support 17 for rid 18, together with an outer container 10 forms the cavity resonator of the apparatus.
Patent GB-1132775-A (GB)
Title: Signal responsive switching system and electrical regulating system utilizing same
IPC: G05F1/46
Filed: 1966-03-02
Abstract: 1,132,775. Automatic voltage control. STATE OF ISRAEL and J. WEISS. March 2, 1966, No.9195/66. Heading G3R. In a voltage regulating system, output terminals 12 are supplied from input terminals 10 over impedances X1 to X6 each of which is shunted by the respective contacts R1-1 to R6-1 of relays R1 to R6 having further contacts R1-2, R1-3 &c. which are inter-connected as shown. The output terminals are connected to a comparator bridge 16 which produces an error signal of one polarity when the output voltage is above the desired value and a signal of the opposite polarity when the output voltage is lower than desired. An operating voltage for the relays is applied to line 24 over the contacts R8-1, R8-2, R8-3 of a relay 8 responsive to the error signal. In operation, assuming the output voltage to be too high, relay R1 is operated by the voltage on line 24 so that contacts R1-1 open to insert impedance X1 into circuit; at the same time further contacts associated with R1 impress the relay operating voltage, if still present after the insertion of X1, on to relay R2 which operates to insert impedance X2 into circuit. A number or all of the subsequent relays operate sequentially until the error signal is removed. If the output voltage should then decrease, e. g. due to a fall in the input voltage at terminals 10, the appropriate number of relays are de-energized sequentially until the output voltage is again at the desired value. The series impedances may be associated with switching transistors controlled by the relays Fig. 3 (not shown), and may be adapted for high amperage operation Fig.4 (not shown). The system may also be used for A. C. regulation.
Patent GB-114080-A (GB)
Title: Letter Sealing and Date Stamping Machine.
Inventor: FRY HENRY ALFRED
IPC: B41K3/12
Filed: 1917-06-27
Abstract: 114,080. Fry, H. A. June 27, 1917. Closing envelopes. - In envelope-closing machines of the kind wherein a reciprocating slide 2 feeds the envelopes from the bottom of a pile in a holder 6 and simultaneously moistens the gum on their flaps, a roller 16 provided with dating- stamps draws the envelopes from the slide and simultaneously stamps them. For this purpose, resilient gripping-blocks and the dating-stamps are secured in a single groove 14 in the roller, and the dating-stamps are inked by disks 13 mounted in adjustable brackets 15. The envelopes are thrown by the roller 16 to a shoot 11, down which they fall and pass to another roller which completes the sealing. Several piles of envelopes may be stacked side by side in the holder 6 and separated by adjustable partitions, the slide feeding one envelope from each slide simultaneously.
Patent GB-792971-A (GB)
Title: Improvements in or relating to protective devices for gas-tight batteries
IPC: H02J7/14
Filed: 1956-03-23
Abstract: 792,971. Battery supply systems. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. March 23, 1956 [March 25, 1955], No. 9205/56. Class 38 (4). A generator 5 supplying a load 4 is connected in parallel with a buffer-battery 9 of the gastight type when the contacts 11 of a relay 12 are closed. The contacts 11 are opened if the relay is energized due to the switches 13 and 14B being closed, the switch 13 responding when the temperature of the battery reaches a pre-determined value. The switch 14B is in the form of a polarized relay having a current-responsive coil 10 in series with the battery, and contacts 14 which are closed when a charging current is passed through the coil 10. Thus, the battery is disconnected from the generator if the battery becomes over-heated whilst a charging current is flowing. The contacts 14 are held closed provided a charging current continues to pass through a voltage coil 16 of the relay 14B, but if the current through the coil reverses, due to an increased load-demand, the contacts 14 are opened and the battery is again brought into circuit. Thus, the battery may be used while it is being discharged, even if the temperature is sufficiently high to maintain the switch 13 closed. The relay 14B may be replaced by a relay having a pivoted contact member comprising a permanent magnet which is movable in the gap between two poles of an electromagnet energized by the coils 10 and 16, Fig. 2 (not shown). With this arrangement, excessive vibration of the contact is prevented. In another arrangement, the coil 16 is replaced by a resistor shunting the contacts 11, Fig. 3 (not shown).
Patent GB-237865-A (GB)
IPC: C10J3/34
Filed: 1925-04-08
Abstract: 237,865. Soc. Anon. des Usines Lambot. July 29, 1924, [Convention date]. Grates.-In a rotary grate for furnaces and gas-producers of the type comprising a conical upper surface divided into sectors forming ridges through which the blast is admitted to the fuel, each sector comprises a slightly inclined surface 16, Figs. 2 and 3, separated by a ridge 17 from the steeper surface 14, the ridge 17 being curved from the centre of the grate to the periphery. The surfaces 16 are united with vertical partitions 18 providing passages within the grate 13 into which the blast is supplied by a pipe 12 and the central passage 11 of the rotating ash-pan 4 upon which the grate is supported. The blast is delivered to the fuel through passages 19 beneath the ridges 17.
Patent GB-831054-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B1/00
Filed: 1957-03-21
Abstract: 831,054. Four-stroke engines; regulating; valves; charge pumps. MOTORENFABRIEK THOMASSEN N.V. March 21, 1957 [March 23, 1956], No. 9326/57. Classes 7(2) and 7(6) An exhaust-driven turbo-compressor 9, Fig. 1, supplies scavenging air to an inlet valve 3 and, after the exhaust valve (not shown) and the valve 3 have closed at or near piston T.D.C., combustion air to an inlet valve 4. A valve 12, and a governorcontrolled valve 13 responsive to engine load, are provided. To render fuel,air mixture composition in the cylinder 1 constant under all working conditions, fuel is supplied proportionally to the combustion air, either via a nozzle 7, direct to the cylinder 1 (or cylinders) or, with gaseous fuels, by a regulating device as in Specification 697,560. In Fig. 2, a rotary valve 15 supplies scavenging air and combustion air in turn to an inlet valve 14 and, where fuel is added to the combustion air, supplies just enough scavenging air momentarily after the combustion air to force it all past the valve 14.
Patent GB-477518-A (GB)
Title: Process of making alkali sub-silicates
IPC: F24C7/06
Filed: 1936-03-31
Abstract: Solid sodium or potassium silicates are obtained by mixing together powdered silica and solid caustic alkali in such proportions that the ratio Alk2O : SiO2 is at least one and in the absence of sufficient water to dissolve the alkali, and reacting the mixture at a temperature below the fusion point of the alkali, for example by heating to 175--250 DEG  C. Water, if added, should not in general exceed 7 per cent of the reaction mixture.  The plastic mass first formed during the reaction is stirred until a granular product is obtained, and the silicate formed may be further heated to 300--600 DEG  C. to render it technically anhydrous.  By using caustic soda and silica in the ratios 1,25 to 1, 1,5 to 1, and 2 to 1, the meta-, sesqui-, and ortho-silicates respectively are obtained, but their composition may be adjusted if necessary by a treatment with waterglass followed by drying at say 200 DEG  C.  The silica used may be opal, diatomaceous earth, rock crystal, sand, flint, sandstone, or bye-product amorphous or crystalline forms thereof, hydrated or otherwise.  Tri- or di-sodium phosphate, or sodium carbonate or bicarbonate may be incorporated with the silicates when they are to be used as detergents.  Specifications 391,407 and 477,578 are referred to.
Patent GB-939924-A (GB)
Title: Continuous oxidation of aromatic compounds having oxidizable side chains
Inventor: MOELL HANS
IPC: C07C51/275
Filed: 1962-03-13
Abstract: In a continuous process for side-chain oxidation of benzene or pyridine compounds to the carboxylic acids with HNO3, cooling is effected by recirculating part of the cooled reaction filtrate. Numerous benzene and pyridine compounds are listed as starting materials, but the examples relate to the production of terephthalic acid.
Patent GB-964982-A (GB)
Title: Improvements in or relating to electric parametric amplifiers
Inventor: BIRCH WALTER LAWRENCE
IPC: H03F7/04
Filed: 1961-03-16
Abstract: 964,982. Parametric amplifiers. GENERAL ELECTRIC CO. Ltd. March 16, 1962 [March 16, 1961], No. 9651/61. Heading H3B. A parametric amplifier comprises a waveguide 12 to propagate the pump frequency, a transmission line 2 to propagate the signal frequency and two electric elements with voltage dependent capacitances 20, 21 connected to the ends of a port 14 which is connected to a conductor of the line 2 and located transversely of the waveguide. In the embodiment shown in the Provisional drawing a coaxial line 1 is adjustably connected to the coaxial line 2 by two flanges 3, the inner conductor being capacitively connected by flanges 7 separated from the inner conductor by a layer of P.T.F.E. A piston 11 which shorts the conductors of the line 2 is movable by means of two rods 10 which pass through an annular disc 9 which provide a D.C. connection between the inner and outer conductors. Two semiconductor diodes 20, 21 are connected in opposition to the ends of port 14 the mountings 22 and 23 being D.C. insulated from waveguide 12 by layers 30, 31 of P.T.F.E. The diodes may be D.C. biased by terminals on the flanges 26, 28, 27 the connection from flange 28 to the port 14 being via the disc 9. The line 1 is connected to a three-arm circulator and carries both input and output signals.
Patent GB-610145-A (GB)
Title: Improvements in or relating to safety and ignition control systems for fuel burners
IPC: F23Q7/12
Filed: 1946-03-28
Abstract: 610,145. Burner control systems. ELLIS, L. S. E. (Robertshaw Thermostat Co.). March 28, 1946, No. 9661. [Classes 75(i) and 75(iii)] In a safety and ignition gas burner control system the gas supply to the burner, and the pilot burner, if provided, is controlled by an electrically-actuated valve the current to which is diminished so as to be insufficient to hold it open a predetermined time after its operation unless a thermal resistor having a positive coefficient of resistance has become heated by the flame of the burner or pilot burner, means being provided responsive to the movement of the valve, or a relay in circuit with the valve, for controlling the delay time In the arrangement, shown, the closure of the main switch 34 in the primary circuit of a transformer 36 energizes a relay 22 the core of which operates a switch arm 42 to close the circuit to a solenoid 20 opening the fuel valve. The coil 40 of the relav 22 forms one arm C D of a bridge in the transformer secondary circuit, the bridge comprising also an arm C B consisting of a ballast resistor 48 having a positive temperature coefficient arranged adjacent the burner flame, an arm A B consisting of a ballast resistor 50 either of constant resistance or having a positive temperature coefficient, an arm A D comprising a thermal cut-out 66 having timedelayed operation, a series resistor 30. a resistance igniter 28 for the burner, and a bimetallic switch 52 heated by a coil 62 in series with the solenoid 20. and a detector arm B D consisting of a thermal cut-out 64. A predetermined period, say 18 seconds, after the opening of the fuel valve the switch 52 opens to de-energize the igniter 28. The current through the relay 22 is then only sufficient to retain the switch arm 42 in the closed position if the resistor 48 has become sufficiently heated by the burner flame. The cut-out 64 opens on the passage of over-current due to failure of the resistor 48 during normal operation and the cut-out 66 opens the ignition circuit if the switch 52 fails to open. If ignition has failed to occur the switch 42 opens and after the switch 52 has cooled the sequence of operations is repeated. The switch 34 may be operated by a manually- or thermostatically-operated valve controlling the fuel supply to the valve operated by the solenoid 20. The coil 20 and fuel valve may be modified to act as the relay 22.
Patent GB-232257-A (GB)
Title: Improvements in and relating to methods of removing coatings from conductors
IPC: H02G1/12
Filed: 1925-04-14
Abstract: 232,257. British Thomson-Houston Co., Ltd., (Assignees of Hollnagel, H. P.). April 11, 1934, [Convention date]. Cleaning; tinning.-Insulation is removed from electric conductors by means of a bath of melted caustic alkali. The process is applicable either to removing insulation from long lengths of conductor on account of defects or for other reasons, or to baring small portions to facilitate making joints. In the apparatus shown in Fig. 1, the conductor is drawn through a bath of alkali 7 maintained at a temperature rather under 700‹ C. by an electric heater 10, through a washing tank 8, in which is a felt wiper, and between wire brushes 18, 19. The bare wire, which has been somewhat stretched and softened in the process, is passed through a die 22 to harden it and reduce it to a standard size. To bare ends &c. of conductors, they are dipped into a jacketed pot 25 heated by an electric heater 26. A shield 28 is placed above the surface of the molten alkali, and an air blast from a pipe 29 checks charring of insulation which is not to be removed. To prevent insulation of cotton, silk, &c. from unravelling, a portion of the conductor overlapping that to be bared is impregnated with shellac and baked before treatment. The bared ends may be tinned by dipping into an electrically-heated vessel 30 containing solder with a layer of molten caustic soda on the surface.
Patent GB-882450-A (GB)
Title: Improvements in or relating to methods of making electric connections
IPC: H01L23/488
Filed: 1959-03-20
Abstract: 882,450. Semi-conductor devices. EBERLE, O., & KOHLER, H., [trading as EBERLE UND KOHLER KOMM.-GES.]. March 20, 1959 [March 21, 1958], No. 9768/59. Class 37. [Also in Group XXII] An electric connection between an electrode of a semi-conductor device and a solder-coated flexible lug attached to the end of a contact pin mounted in a supporting base is made by the steps of heating to melt the solder and preferably also at least part of the electrode, bending the lug into contact with the electrode where it is held by the surface tension of the molten material despite its resiliency, and cooling to solidify the solder. The bending of the lug may be effected by magnetic, electrostatic, hydrodynamic or aerodynamic forces or by using the inertia of the lug in a sudden movement or vibration. Figs. 2 and 4 illustrate respectively a diode and transistor to which connection has been made in the above manner.
Patent GB-359901-A (GB)
Title: High frequency transformer
IPC: H01F21/04
Filed: 1930-04-23
Abstract: 359,901. Transformers. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 78, 22nd Street, Jackson Heights, New York, U.S.A.) April 23, 1930, No. 9847/31. Convention date, June 20, 1929. Divided on 359,890. [Class 38 (ii).] A high frequency transformer comprises three helical windings L3, L1, L2 of successively decreasing diameters, L2, L3 being primaries and L1 a secondary, mounted coaxially one within the other in fixed spacial relationship to produce close magnetic coupling between L2 and L1, moderate magnetic coupling between L1 and L3, and loose coupling between L3 and L2. Further, the winding positions are so adjusted that the product of the coupling coefficients between L3, Ll and L2, L1 equals the coupling coefficient between L2, L3. The Specification states that the winding L3 can be connected so that it will act as an electromagnetic and an electrostatic shield. Winding dimensions and inductance values are given in the Specification. Specifications 273,639, 315,399, [both in Class 40 (v), Wireless signalling &c.], and 359,890 are referred to.
Patent GB-937103-A (GB)
Title: Drying apparatus
IPC: F26B15/18
Filed: 1960-03-21
Abstract: 937,103. Drying veneers. FLEISSNER G.m.b.H. March 21, 1960 [March 26, 1959; April 20, 1959], No. 9875/60. Class 34 (2). Apparatus for the drying of substantially air-impermeable goods, e.g. veneers comprises at least one sieve-drum in a main drying zone associated with at least one preliminary or after-drying zone or an air-conditioned zone, the sieve-drum having means to generate a sufficiently strong suction current within the drum to cause the goods to adhere to the drum to be smoothed thereby. Substantially impermeable goods, e.g. veneers are dried in a preliminary drying zone 1, Fig. 3, which may comprise at least one belt drier from which the goods are transferred either directly or indirectly via adjustable rollers or slatted belts to the main drying and smoothing zone 3 comprising sieve drums having means to generate sufficiently strong suction current within the drums to cause the goods to adhere to and be smoothed by the drums, from whence the goods pass to an air-conditioned zone 4 comprising a belt drier, as shown, or a sieve-drum installation. The zones may be arranged in a single chamber, Fig. 6 (not shown), or the zones may be subdivided so that the speed, temperature or quantity of the drying air may be graduated therein, and the air flow may be in countercurrent in part or over the whole of the installation by mounting the air inlet of each zone adjacent the goods exit, as in Fig. 5 (not shown). The sieve drums may comprise two separate air flows, one being used for drying the goods by blowing air from nozzles. Thereover and removing the air laterally by suction and the other flow being used for generating a high suction current within the drum to obtain the smoothing effect. Partition plates may be mounted in each sieve-drum to allow one compartment thereof to be used for suction and the other for delivery, one or more fans being utilized in each drum. Nozzles may be arranged concentrically about the periphery of the sievedrums, the air issuing therefrom impinging on the goods being conveyed away through air ducts arranged concentrically between the nozzles to the part of the adjacent sieve-drums not covered by the goods. The sieve drum peripheries 16, Fig. 8A, may be formed with radially arranged, perforated entrainment elements 17 having suction bearing surfaces 15, the interiors of which elements have a negative pressure to obtain the smoothing effect on the goods introduced by their thin sides therebetween by a synchronized feed device, e.g. individual belts, which smoothing effect is enhanced by radiant heat outside or within the drum. In a modification, entrainment elements 21, Fig. 9, articulated together by pivotal connections 22, 23 convey the goods about a series of sieve-drums.
Patent GB-191104937-A (GB)
IPC: A01B69/00
Abstract: 4937. Stock, R. March 16, 1910, [Convention date]. Ploughs. - In a motor implement having differential driving-gear and a number of ploughs all turned the same way, the deflecting- forces are neutralized by arranging the ploughs unsymmetrically relatively to the median longitudinal line of the implement, so that the algebraic sum of the torques due to the longitudinal forces acting on the ploughs is equal and opposite to the total torque due to the transverse forces. The ploughs 21 are proportionately shifted away from the side to which they deliver so that those on that side have less leverage than those on the other side. The motor drives the wheels 14 through differential gearing 12 and a countershaft 13. One of the wheels 14 is adjustable in a curved guide 15. The flanged steering-wheel 17 is placed in the position shown, so that the torque due to the pressure of the soil on it is opposed to that due to the transverse forces on the ploughs.
Patent HU-T53895-A (HU)
Title: Fungicides comprising oxiranephenyl esters as active ingredient and process for producing the active ingredients
Inventor: SEELE RAINER
IPC: C07D303/40
Filed: 1990-04-10
Abstract: Esters of the general formula I   <IMAGE> I  where A is hydrogen, alkyl, cycloalkyl, cycloalkenyl, naphthyl, biphenyl, hetaryl or phenyl, these radicals being substituted or unsubstituted, and X is CH or N, and fungicides containing these esters.
Patent HU-T45926-A (HU)
Title: Method and apparatus for producing nozzles suitable for feeding metal and alloy melts and agressive chemical media
Inventor: FEKETE ISTVAN
IPC: C03B11/06
Filed: 1986-09-29
Abstract: Quartz glass sheet or tube is pre-warmed, then pressed to form, in one step, the melt containing vessel and its feed nozzle(s). The equipment comprises support frame located on a workbench. Press tool attached to the frame moving press tool connected to an operating rod. Flame torches fixed to supports.