baber/WOPTO huggingface dataset:
Patent GB-1520031-A (GB)
Title: Method of generating acoustic energy for seismic sureveying
IPC: G01V1/38
Filed: 1976-01-08
Abstract: 1520031 Generating acoustic energy for seismic surveying MOBIL OIL CORP 8 Jan 1976 [28 Feb 1975] 00633/76 Heading G1G Acoustic energy is generated in a water layer over-lying a subsurface formation to be surveyed by suspending a plurality of acoustic energy generators in the water layer and firing them in a sequence so as to produce a resultant acoustic pressure wave having a time-domain characteristic representative of the inverse of the distortion effect upon the wave as it reverberates in the water layer. It is shown in the Specification that the resultant acoustic pressure wave can have either a twopoint time-domain characteristic or a three-point time-domain characteristic. In the first instance an acoustic impulse of amplitude S is generated at a time t and a second impulse of amplitude S x R is generated at a time t + Tw, where R is the reflection coefficient of the water bottom. This second impulse may be directed either towards the water bottom or towards the water surface. In the second instance, an acoustic impulse of amplitude S is generated at time t, a second impulse of amplitude S x 2R is generated at time t + Tw and a third impulse is of amplitude S x R<SP>2</SP> is generated at time t + 2Tw, the second impulse being directed either towards the water bottom or towards the water surface. As described with reference to Fig. 9 (not shown), the generators are towed by a marine vessel which also tows a streamer of hydrophones. The generators may be arranged either as shown in Fig. 10 or as shown in Fig. 11. In Fig. 10, the generators E1-E16 are towed horizontally behind a boat 60. In the two-point case, generators El- E8 are fired simultaneously at time t to provide a resultant impulse of amplitude S, and generators E9-E16 are fired simultaneously at time t + Tw to provide a resultant impulse of amplitude S x R.  In the three-point case, generators El to E4 are fired simultaneously at time t to provide a resultant impulse of amplitude S, generators E5 to E12 are fired simultaneously at time t + Tw to provide a resultant impulse of amplitude S x 2R, and generators E13-E16 are fired simultaneously at time t + 2Tw to provide a resultant impulse of amplitude S x R<SP>2</SP>. In Fig. 11, the generators El- E16 are towed vertically behind the boat. In the two-point case, generators E1-E8 are fired sequentially to provide a resultant downwardly directed impulse of amplitude S at time t and generators E9-E16 are fired sequentially, either from top to bottom or vice-versa, to provide a resultant impulse of amplitude S x R at time t + Tw. In the three-point case, three groups of generators are fired in the desired sequence to provide the impulses of amplitude S, S x 2R and S x R<SP>2</SP> at times t, t + Tw, and t + 2Tw respectively.
Patent GB-1099542-A (GB)
Title: Method and apparatus for measuring breakdown voltages of diodes and transistors
IPC: G01R31/26
Filed: 1965-01-06
Abstract: 1,099,542. Automatic current control. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENVTARSASAG. Jan. 6, 1965 [Jan. 6, 1964], No. 651/65. Heading G3R. [Also in Division G1] In a system for controlling the magnitude of a test current applied to the collector base junction of a transistor 1 in an avalanche breakdown test (see Division G1) the current provided by a generator 2 is monitored by a resistor Rm and the voltage thereacross applied via transformer T2 and diode D5 to an emitter follower circuit V 10 , V 11  and then rectified by diode D3. The rectified voltage is applied to a differential amplifier V 6 , V 7  and the error signal is passed via V 9 , V 8  to control the amplitude of the output from the pulse generating system into the transformer T1 and thence to the transistor 1.
Patent GB-289743-A (GB)
Title: Improvements in salt pourers and like vessels
IPC: A47G19/24
Filed: 1928-01-09
Abstract: 289,743. Holman, H. I., Holman, E. W., and Martyne, H. H. Jan. 9, 1928. Powder distributers. - A salt pourer or similar vessel has a screw cap 2 provided with a central pouring aperture 3 which is normally closed by the end 5a of a lever 5 fulcrummed on the cap and controlled by a spring 6; the lever is operated to uncover the aperture 3 by pressure of the finger or thumb on the end 5<b> against the action of the spring. Specification 26225/03 is referred to.
Patent GB-372709-A (GB)
Title: Improvements in or relating to water proof floors and linings
IPC: E02D31/02
Filed: 1932-01-09
Abstract: 372,709. Waterproof floors. MARBIOTT, T. G., Artillery House, Artillery Row, Victoria Street, London. Jan. 9, 1932, No. 681. [Class 20 (iv).] Waterproof floors and linings for chambers below water level are formed by laying first a concrete or like bottom layer E with pipes C extending therethrough into the subsoil, so that water may be removed during construction by means of a hose F inserted into the pipes. An asphalt or similar damp course G is then laid and sealed around the pipes, and the top layer I of concrete is so laid as to leave temporary gaps to give access to the pipes. When no more water is to be removed, the pipes are closed by plugs and sealed with an asphalt filling, and the top layer I is completed by filling in the gaps, the pipes being left in situ.
Patent GB-400802-A (GB)
Title: Improvements in and relating to electric cables
IPC: H02G15/26
Filed: 1933-01-09
Abstract: 400,802. Cables ; sleeve couplings ; cable joints. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Jan. 9, 1933, No. 730. Convention date, Jan. 9, 1932. [Classes 36 and 38 (i).] An expansion chamber for an oil-filled electric cable, which may enclose a joint or be connected to an end cap, contains in air space which is separated from the oil by a flexible partition of synthetic material. The Figure shows such a partition d arranged coaxially with the cable b and tightly secured thereto at e<1>, e,<2>. A perforated partition c screens the oil outlets a in the cable from the partition d. The outlets a can be closed during manufacture by valves, taps, or louvres operated by rods &c. Modifications are described in which the expansion chamber f is filled with oil and the flexible partition forms a closed vessel wrapped or coiled round the cable. An additional air chamber may be provided communicating with the air space. Specification 385,422 is referred to.
Patent GB-606039-A (GB)
Title: Improvements relating to the filtration of oil in the lubricant circulation systems of internal combustion engines
IPC: F16N39/06
Filed: 1946-01-09
Abstract: 606,039. Lubricating systems for internalcombustion engines. ALLAM, P. S. (Fram Corporation). Jan. 9, 1946, No. 751. [Class 12 (iii)] In a lubricating system for an internalcombustion engine, the engine casing is formed with a part on which is mounted a casing containing a filter cartridge, the casing having inlet and outlet ports continuously open while the oil is circulating under pump pressure, whereby oil flows unrestrictedly through the casing to the user conduit, but with some oil passing through the filter cartridge to return direct to the sump. A pump 22, immersed in the oil in a sump provided by an oil pan 12 attached to the engine and crank-case bloc 10, 11, circulates oil through a conduit 18 bored in a protruding part 14 formed on the engine and crank-case bloc 10, 11 to a filter-containing casing 35 secured on such protruding part 14 by bolts 38 passing through the bottom wall of the casing 35. The oil enters by a stand-pipe 43 reaching to the top of the casing so that the filter cartridge 45 is surrounded by oil under pressure, whereby some oil passes through and is filtered by the cartridge to return direct to the sump 12 by the central discharge tube 31 of the cartridge which opens direct to the crank-casing while the remainder of the oil passes to the user manifold 26 through a conduit 28 in the protruding part 14 from an outlet port of the casing 35 provided with a spring-loaded valve 29 which is open so long as the oil in the casing is circulating under pressure. The protruding part also includes a conduit 25 branching from the inlet conduit 18 to the filter casing and leading direct to the user manifold 26 so that this conduit 25 provides a parallel flow path.
Patent GB-840082-A (GB)
Title: A process for the preparation of diolefins by dehydrogenation of mono-olefins
IPC: C07C5/333
Filed: 1959-01-08
Abstract: Diolefines are prepared by the dehydrogenation of mono-olefines containing at least four carbon atoms in contact with an oxide of iron, cobalt or nickel in a high oxidation state, i.e. one capable of being reduced to an oxide in which the metal is in a lower oxidation state, preferably Fe2O3, Ni2O3 or Co2O3, at 260-540 DEG  C. for less than 40 seconds.  The metal oxide may be supported on alpha or gamma alumina of surface area 20-150 sq. metres per gram, titania, zirconia, magnesia, silica, natural or synthetic clays, diatomaceous earth or magnetite, the composite containing 10-95% of the metal oxide.  The oxide is reduced during the reaction and is frequently regenerated by contact with an oxygen-containing gas, e.g. air, at 260-650 DEG  C. for 0.1-5 minutes.  Preferably the oxide is treated with a non-oxidizing gas before and after the oxidizing step, suitable gases being nitrogen, flue gas, steam, hydrogen or carbon monoxide.  The oxide only becomes fully active after activation by 1-100 cycles of alternate contact with a reducing agent such as hydrocarbon feed at 315-540 DEG  C. and an oxidizing agent such as air at up to 650 DEG  C., contact times being in the same range as in the process itself.  Conversions which may be effected include 1- or 2-butene to 1,3-butadiene, 1- or 2-pentene to 1,3-pentadiene, 2- or 3-methyl-1-butene or 3-methyl-2-butene to isoprene and (methyl)cyclopentene to (methyl) cyclopentadiene.  The hydrocarbon should be in the vapour phase and contact times of 0.3-20 seconds are preferred at 0.35-4.2 kg./cm.2 absolute.  The contact between solid and vapour may be effected in a co-current up-flow or down-flow reactor or counter-current, the vapours flowing up and the solid down.  Amounts of hydrocarbon passed during a reaction cycle may be 0.1-2 parts per 100 parts by weight of solid.  Diluents may be employed, e.g. up to 4 times the amount of hydrocarbon of nitrogen, carbon dioxide or steam may be added.
Patent GB-751496-A (GB)
Title: Improvements in shielding and sealing gaskets for electronic equipment
Inventor: GOODLOE ALFRED MINOR
IPC: H05K9/00
Filed: 1954-01-11
Abstract: 751,496. Joint-making packing. METAL TEXTILE CORPORATION. Jan. 11, 1954, No. 791/54. Class 122(3) [Also in Group XXXVI] A shielding and sealing gasket for electronic or other electrical equipment comprises superimposeed ribbons of knitted metallic wire mesh embedded in resilient electrical insulating material, e.g. natural or synthetic rubber, each ribbon being substantially at right angles to one face of the gasket and having been cut lengthwise along two parallel wales such that the cut ends of the wire are flush with opposite faces of the gasket, whereby the looped wires provide laterally yieldable electrical conducting elements permitting flow of electricity between the opposite faces of the gasket. A layer of uncured natural or synthetic rubber 11. Fig. 1, is pressed into the interstices of a wire mesh 10 which comprises a single flat or tubular knit layer or a double layer formed by flattening a knitted tube. To form an annular gasket the resultant composite sheet is wound on a mandrel 12. Fig. 3, to a diameter equal to the required external diameter of the gasket to be produced. The mass is then vulcanized. and cut into gaskets of the required thickness by transverse cuts which pass through the loops of the wire mesh so that the severed wire ends are exposed at the two faces of the gasket. When mounted between the bolted together flanges 16, Fig. 6, of shielded conduits 17 of electronic equipment, the gasket provides a water and dustproof seal as well as an electrical connection between the flanges. Gaskets of annular or polygonal form can also be produced by vulcanizing a stack of superposed sheets of the composite material 10, 11 and cutting into strips. Each strip 18. Fig. 8, is bent into an annular or polygonal form and the ends 19, 20, which may be bevelled, are secured together by adhesive.
Patent GB-522931-A (GB)
Title: Improvements in or relating to automatically operable gates and the like
IPC: E05F13/04
Filed: 1939-01-10
Abstract: 522,931. Operating gates. MOUNSEY, J. D. Jan. 10, 1939, No. 817. [Class 65 (i)] A gate 16 consisting of a net or roller shutter is operated by a vehicle on either of two runways 11, 12 hinged at their outer ends 13 and resting at their inner ends on a crossbar 7 carrying the gate and connected to counterweights 9, 10. The gate is lowered into a trough 17 in the ground and the runways into channels 26. In another form, a barrier is arranged above the gate and is raised on a pivot as the gate is lowered.
Patent GB-1074984-A (GB)
Title: Improvements relating to machines for cutting gears
Inventor: ASH JOHN LONG
IPC: B23F9/10
Filed: 1965-01-26
Abstract: 1,074,984. Gear - cutting. GLEASON WORKS. Jan. 26, 1965, No. 856/66. Divided out of 1,074,983. Heading B3K. A gear-cutting machine comprises drive means 24-27, Fig. 2, for reversingly rotating a tool-carrying cradle 11, a gear train 41-44 for rotating a work-spindle 15 and connectible to the drive means for unidirectional rotation, an intermittent index mechanism 53, 81 for operation in time with the drive means, and means 39, 40 for connecting the gear train either to the index mechanism or to the drive means. The machine is as described in Specification 1,074,983.
Patent GB-689380-A (GB)
Title: Method of modulation and demodulation for pulse-type telecommunication system
IPC: H03K7/00
Filed: 1952-01-11
Abstract: 689,380. Multiplex pulse signalling. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Jan. 11, 1952 [March 10, 1951], No. 927/52. Class 40 (v). Position - modulated pulses are produced by adding to an unmodulated pulse train, pulses derived by differentiating amplitude modulated pulses of the same phase and recurrence frequency. Demodulation is effected by integrating the sum of the modulated pulse train and an unmodulated pulse train of opposite polarity and the same recurrence frequency and mean phase. In the embodiment described one go and return terminal channel circuit of a multiplex communication system is shown inside the frame of dotted lines, the remainder of the circuit being common to all the channels at the terminal. The master oscillator 1 controls a pulse generator 2 which energizes the synchronizing pulse generator 3 connected to the outgoing line. Generator 2 also feeds the delay line distributer 4, from a tapping on which a pulse train is fed to the amplitude modulator 8 supplied with voice current from the hybrid transformer 9. The amplitude modulated pulses together with those from the other channel circuits are fed through valve 11 to the short-circuited line differentiator 12. The resulting pulse train is added to an unmodulated train derived from all the tappings on the distributer 4 through resistances 14, and fed to the limiter valve 15 and thence to line. Modulated pulses from the incoming line are applied to the synchronizing pulse separator 18, the output pulses of which are fed to the delay line distributer 19. The unmodulated pulse train derived through resistances 20 from all the delay line tappings is applied through limiter 21 to the grid of valve 17, together with the opposite polarity modulated pulses from transformer 16. The combined pulses are integrated by the open line 22 to produce amplitude modulated pulses which are fed to all the channel gating circuits. In the channel circuit shown the gating takes place in circuit 25 which receives gating pulses from one of the tappings on line 19. The output pulses are fed to a low-pass filter 28 and the recovered voice signal is passed to the hybrid transformer 9.
Patent GB-101810-A (GB)
Title: Improvement connected with Purses, Ladies' Handbags, and the like.
Inventor: BURCH JAMES BENTLEY
IPC: A45C13/10
Filed: 1916-01-20
Abstract: 101,810. Burch, J. B. Jan. 20, 1916. Hand-bags etc.; purses.- Purses, ladies' hand-bags, &c., are secured by a loop C passed through a slot D and over one or more fingers.
Patent GB-1035851-A (GB)
Title: Improvements in or relating to oscillators employing field-effect transistors
IPC: H03L5/00
Filed: 1964-01-08
Abstract: 1,035,851. Transistor oscillating circuits. RADIO CORPORATION OF AMERICA. Jan. 8, 1964 [Feb. 25, 1963], No. 941/64. Heading H3T. In an oscillator circuit in which an insulatedgate field-effect transistor is the active element, a desired amplitude of oscillation is achieved by a suitable choice of the bias applied to the gate electrode of the transistor. Fig. 4 shows a tuned-drain tuned-gate oscillator in which the gate bias may be adjusted by means of potentiometer 51. The drain tuned circuit is constituted by inductor 41 and capacitor 44. and the gate tuned circuit is constituted by inductor 48 and capacitor 47. Feedback is provided by capacitor 46. Fig. 9 illustrates a Colpitts oscillator in which inductor 59 co-operates with the drain-to-ground and gate-to-ground capacitances to provide a parallel tuned circuit comprising two seriesconnected capacitors whose junction point is connected to the source electrode. Inductor 55 serves as an R.F. choke. In Fig. 10 the source electrode is isolated from earth by R.F. choke 69 while the drain electrode is earthed for oscillation frequencies. Fixed bias on the gate electrode to give a desired amplitude of oscillation is provided by resistor 70 in the source circuit. In Fig. 11 (not shown) bias to the gate electrode is provided by a potentiometer chain connected across the supply source. An oscillator comprising an insulated-gate field-effect transistor may be used as a memory device or as a modulator, Fig. 12 (not shown). On account of the insulated construction of the gate electrode, the time constant of the gate circuit can be made very large (of the order of several hours). In such circumstances the application of a pulse to establish a voltage level at the gate will determine the oscillation amplitude until the gate potential is reset by a subsequent pulse. The direct application of a modulating signal to the gate electrode will modulate the oscillation amplitude.
Patent GB-534415-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/20
Filed: 1940-01-16
Abstract: 534,415. Chucks. HARDINGE BROS., Inc. Jan. 16, 1940, No. 985. Convention date April 13, 1939, [Class 83 (iii)] Spring collets for bevel closing chucks have interchangeable work-engaging pads secured by screws accessible from the outer end of the collet. The pads are located by an arcuate rib 18 engaging an annular groove in the collet and by keys 37 on clamping members 35 engaging grooves 36. Keyhole slots in the fingers 16 of the collet receive the clamping members 25, 24 connected by right- and left-hand screws 30 so that bevellled surfaces on the members can be brought into engagement with undercut surfaces 34 on the pads. Polygonal recesses 40 in the screws provide for key operation.
Patent GB-443264-A (GB)
Title: Improvements in therapeutic devices or compresses
IPC: A61F7/02
Filed: 1935-01-11
Abstract: A therapeutic compress consists of a pad or the like impregnated with a composition consisting of a heating medium, e.g. paraffin, paraffin mixture, tar derivatives or animal or vegetable fats mixed with or containing a medicament or stimulant exerting a specific action on the skin, and adapted to be heated by any separate heating means, such as a steam heated or electrically heated pad.  In the latter case, the heating medium is preferably an insulator.  Reference has been directed by the Comptroller to Specification 315,491, [Class 81 (ii)].
Patent HK-13891-A (HK)
Title: Bis perhalogenacyl or sulfonyl imides of alkali metals,their solid solutions with plastic material and their use in the production of conducting elements for electrochemical generators
Inventor: ARMAND MICHEL
IPC: C07F1/00
Filed: 1991-02-28
Abstract: The invention relates to novel ionic compounds which can be incorporated in polymers whose monomer units include at least one hetroatom, particularly oxygen or nitrogen adapted to form bonds of the donor-acceptor type with the cation of the ionic compound, the solid solutions obtained being utilizable to form the electrolyte of an electrochemical generator. These ionic compounds are represented by the formula (CnX2n+1Y)2N-,M+ in which : X is a halogen, n varies from 1 to 4, Y is a CO or SO2 group and M is an alkali metal.
Patent HK-16096-A (HK)
Title: Magazine-type record player
Inventor: CASPERS JOHANNES
IPC: G11B17/30
Filed: 1996-01-25
Abstract: PCT No. PCT/EP87/00684 Sec. 371 Date Apr. 5, 1988 Sec. 102(e) Date Apr. 5, 1988 PCT Filed Nov. 6, 1987 PCT Pub. No. WO88/03694 PCT Pub. Date May 19, 1988.A record player in which a magazine is provided with compartments for storing a number of rigid and flexible disk-shaped recording media. For playing the disks, they are removed only to an extent necessary for the disk drive to engage bores of the disk. Each compartment has a bottom with a semi-circular recess at a side of the magazine from which the recording media are removed for being played. This recess has a diameter that is substantially longer than the diameter of the respective disk to be played, so that the disk can rotate freely while being played. Each compartment, furthermore, as a storage recess above the semi-circular recess for storing the disk. To play the disk, the latter is lowered from the storage recess into the semi-circular recess, but the lowering of the disk is such that the disk will not contact the bottom of the semi-circular recess, so as to allow free rotation of the disk within the semi-circular recess.
Patent HU-T49421-A (HU)
Title: Method and apparatus for cooling the radiation places in the active zone of nuclear reactors
Inventor: ELEK ANTAL
IPC: G21C15/02
Filed: 1988-02-26
Abstract: Method and equipment are proposed to cool irradiation spaces in the active zone of a nuclear reactor. It is proposed that gas is first compressed to at least 10 MPa, then expanded and passed through the irradiation space(s) with a temp. of less than 0 deg.C. The equipment is for use with a reactor which contains an active zone and a moderator. Irradiation spaces are located in the active zone. Cooling pipes are routed from the outlets of the expander through the heat insulation spaces and the moderator. The expander inlets are connected to the compressor discharges. Gas is provided to the compressor inlet and discharged through pipe.
Patent JP-S5494176-A (JP)
Title: Corpuscle capturing air filter
Inventor: SUZUKI MICHIO
IPC: B01D46/52
Filed: 1978-01-06
Abstract: PURPOSE: To obtain a less-maintenance-cost-requiring (or economical) air filter, designed capable of maintaining required dust collecting capability and controlling pressure stability, by employing a filter material composed of 2 layers with the top layer for upper stream being coarser than the bottom layer for down stream.  
     CONSTITUTION: A filter material 1A and another filter material 1B are put together in two layers in such a manner that separators 2 of appropriate material are arranged between the layers for securing air passage, folded in zigzag (or snake- dancing) arrangement and completely enclosed by a frame 4 which an adhesive 3 to prevent air from leaking. Thus composed air filter is used by being incorporated in an air passage so that the filter material 1A is directed to the up stream (of air flow) and the filter material 1B is directed to the down stream as shown with an arrow 5 in the sketch. The filter material layer 1A has a dust-collecting efficiency of 99.75 or more and 99.97 or less of particles of 0.3 μ in diameter and the filter material 1B has a dust collecting efficiency of 99.97 % or more of the particles of the same size. 
     COPYRIGHT: (C)1979,JPO&Japio