baber/WOPTO huggingface dataset:
Patent GB-366683-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F1/36
Filed: 1931-01-06
Abstract: 366,683. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Jan. 6, 1931, No. 481. Convention date, Feb. 14, 1930. [Class 40 (v).] A thermionic amplifier has a variable ohmic resistance 3 in series with the output or coupling impedance 2, such as a transformer, the voltage drop across all or part of the resistance being fed back to the input, as for example via transformer 6, in such manner that for all frequencies the voltages across the output impedance are proportional to the signal voltages. The impedance of transformer 6 should be large relative to the resistance of 3 and its ratio is 1 : 1.
Patent GB-104695-A (GB)
Title: Improvements in or relating to Internal-combustion Engines.
Inventor: CAGE JOHN MILTON
IPC: F01L5/06
Filed: 1916-01-11
Abstract: 104,695. Cage, J. M. Jan. 11, 1916. Valves.-In two-stroke-cycle engines of the i:ind in which the exhaust gases are withdrawn by a pump, the engine cylinder 36 and the pump cylinder are surrounded by a cylinder 40 divided longitudinally into chambers 73, 56, 85, Fig. 5, the chambers 73 being put into communication with the cylinder 36 and vacuum pump at different periods, and the chambers 56 serving as connecting-passages between the compression chamber and cylinder. The chambers 85 contain water and extend from the top of the cylinder 40 to an annular chamber 86, the separate chambers being in communication midway by passages 85a. The cylinder 28 of the vacuum pump is actuated by an eccentric 25 and is made with ports 51, 71. 60, 77. The ports 51, 60 place the compression chamber and cylinder 36 in communication through the annular chamber 57, chambers 56, and the annular chamber 54 when opposite the ports 50, 52 and 61, 62, respectively. The ports 71, 77 place the chambers 73 in communication with the cylinder 36 and pump, respectively. In operation assuming the pistons 31, 35 to be in their lowest positions, on the first up-stroke a charge is drawn through the passage 64 and ports 61, 62 into the compression chamber, i.e., the space between the piston 35 and the diaphragm 33. On the down-stroke the charge is compressed, since the port 61 is closed, and passes into the chambers 56 where it is heated and from whence it passes into the cylinder on the following up-stroke, towards the end of which the inlet port 50 is closed. Ignition then occurs, and near the end of the down-stroke, the port 71 comes into alinement with the ports 70, 72, and the exhaust escapes into the chambers 73. During the following up-stroke, the exhaust is retained in the chambers 73, but during the next down-stroke, the ports 76, 77 come into alinement and the exhaust passes into the vacuum pump, from which it is expelled through the port 80 during the next up-stroke.
Patent GB-1091171-A (GB)
Title: Cyanide-free alkaline bright zinc plating baths
IPC: C25D3/22
Filed: 1965-01-06
Abstract: A cyanide-free, alkaline, bright zinc plating bath contains one or more polyamines, other known brightening agents and bath additives, and also, as separate compounds, thiourea and a thiocarbamic acid or a salt thereof.  Suitable additions are polymines in amounts 0.5-15 grams/litre, thiourea 0.5-15 grams/litre thiocarbamic acid or its salt 0.2-20 grams/litre, benzaldehyde coumarin, vanillin, anisicaldehyde, salicylaldehyde or heliotropin 0.4-4 grams/litre; gelatine, gum arabic, tragacanth 1-2 grams/litre; octyl, decyl, lauryl and dodecylsulphonates 1-5 grams/litre.  The zinc may be added as zinc oxide dissolved in sodium hydroxide.
Patent GB-1095093-A (GB)
Title: Improvements in or relating to surface-wave transmission lines
IPC: H02G7/00
Filed: 1965-01-06
Abstract: 1,095,093. Surface-wave lines. T. HAFNER. Jan. 6, 1965 [Jan. 7, 1964], No. 550/65. Heading H1W. The single conductor of a surface-wave line is supported from the towers of a high-voltage power transmission line by short coaxial sections, the surface-wave line running continuously through the coaxial sections of which it forms the inner conductors, the outer conductor being axially split in order to allow insertion of the line. The surface-wave line may be one of the high-voltage lines, a neutral line or an extra line not forming part of the power system. The support means shown in Fig. 1 is suspended from the lattice work of the towers partly shown at 4. It consists of two sections 6, 6<SP>1</SP> of outer conductor and two horns 5, 5<SP>1</SP> all constructed of longitudinally-split sections. The surface-wave line consists of a steel cable 1 surrounded by copper foil 2 and a thick polyethylene layer 3 which determines the diameter of the electromagnetic field. The polyethylene may contain carbon. The copper layer 2 may be crimped and may be insulated from the steel core 1. The dielectric layer 3 is removed where the line passes through the outer conductors 6, 6<SP>1</SP>. It is centred by means of dielectric discs 17 and supported by means of a conductive rod 9 which forms the inner conductor of a vertical coaxial quarter-wave section 9, 10. In order to allow adjustment in curvature, the conductors 6, 6<SP>1</SP> are made of telescopic sections 13, 14. They may be surrounded by a weatherproof layer of insulating material, e.g. polythene foam. The conductors 6, 6<SP>1</SP> and horns 5, 5<SP>1</SP> are suspended from the towers by means of adjustable tie-bars (see Figs. 6 to 8, not shown). In a modification (Fig. 9, not shown), the sections 6, 6<SP>1</SP> are connected to the section 9, 10 by means of springs which allow adjustment of the angle between the sections.
Patent GB-433121-A (GB)
Title: Improvements in non-skid devices for vehicle wheels
IPC: B60C11/18
Filed: 1934-01-09
Abstract: 433,121. Wheel tyres. GRAY, B. P., 14, Suffolk Street, Birmingham. Jan. 9, 1934, No. 757. [Class 144 (ii)] Metal plates embedded in the tread of a tyre cover are formed with one or more longitutinal ribs or other projections arranged to be flush with the tread surface, the end portions of the plate extending beyond the ribs &c. so as to prevent rocking of the plates in use. In the form shown in Figs. 1 and 3, the plate 17 is formed with serrated flanges 14, and perforations 21 by which the plate is keyed to the material of the tyre. Additional ribs or tongues, such as 30, Fig. 9, may be struck-up from the base of the plate, and the edge flanges may be replaced by tongues 26. According to the Provisional Specification, pins may be used instead of the plates.
Patent GB-1269601-A (GB)
Title: Chromogenic amino-substituted fluoran compounds
IPC: C09B11/24
Filed: 1970-01-07
Abstract: 1,269,601. Pressure-sensitive copying papers. NATIONAL CASH REGISTER CO. 7 Jan., 1970 [21 Jan., 1969 (6)], No. 790/70. Heading D2B. [Also in Divisions C2 and C4]  Colour-forming components for pressuresensitive copying papers comprise fluorans of the formula:  in which R 5  and R 6  are hydrogen or C 1-4  alkyl groups, R 4  is hydrogen or a nitro, amino, substituted amino or methylene imino group in the 5- or 6-position, R 1  and R 2  are hydrogen or nitro, amino, alkyl, halogen, formyl, carboxyl, alkoxy, aryloxy, carboalkoxy, aroyl, or alkanoyl and R 3  is hydrogen, nitro, amino, alkyl, halogen, formyl, carboxyl, alkoxy, aryloxy, carboalkoxy, aroyl, alkanoyl or a substituted amino group, provided that when R 4  is hydrogen, at least one of R 1 , R 2  and R 3  is a group other than hydrogen, alkyl or halogen, when R 1  and R, are hydrogen and R 2  is hydrogen or alkyl, R 3  is a nitro, formyl, carboxyl, aryloxy, carboalkoxy, aroyl, alkanoyl, arylamino, phenacylamino, arylacetamido, carboalkoxymethylamino, carbamoylmethylamino or sulphonamido group, and when R 1  and R 4  are hydrogen and R 3  is hydrogen or alkyl, R 2  is a group other than amino or alkoxy. The fluorans are used with acidic co-reactants to obtain colours including red, orange, green, purple and black.
Patent GB-306530-A (GB)
Title: Device for machining propeller-type rotor wheels of hydraulic turbines and centrifugal pumps
IPC: B23D3/04
Filed: 1929-01-09
Abstract: 306,530. Voith, W., Voith. H., and Voith, H., (trading as Voith, J. M. [Firm of]). Feb. 23, 1928, [Convention date]. Lathes; milling helical surfaces.-In a device for machining the blades of rotors of hydraulic turbines and centrifugal pumps, a profiled cam is first prepared from the desired blade outline, and this cam is then used to control the pilot valve of a hydraulic motor the piston of which imparts movement to a turning or milling tool in a direction axially of the rotating work-piece. Sections I - - IV of the blades shown in Fig. 1 are obtained at different radial distances r<1> - - r<4> from the propeller axis. These sections are then developed in the manner shown in Fig. 2. wherein E E represents any plane perpendicular to the propeller axis. Taking the section of a single blade, the distances a, a<1>, b, b<1>, &c. are then marked off on extensions of radii of a cylinder C, Fig. 3, and the curve thus formed is closed by any return curve g, a. This procedure is repeated for each of the sections I - - IV and the cams so obtained are appropriately arranged along a shaft and the intermediate spaces are filled out to form a continuous cam surface. The cam 9 is then mounted on a shaft 8 driven at three times the work speed from the work-carrying face plate 2. The cam roller is carried on a lever 10 connected to a valve 12 controlling a servo motor cylinder 13, whose piston rod 14 carries a turning or milling tool 16. An adjustable lever 18 pivoted at 20 to the motor housing and at 19 to the piston rod is connected by a link 17 to the lever 10 and serves to return the valve 12 to a neutral position. The amount of movement of the tool corresponding to a given displacement of the cam roller is varied by adjustment of the pivot 19 along a slot in the lever 18. The cam makes three rotations during one rotation of the work so that when the latter is continuously rotated the three blades are treated in succession. The tool, together with the servo motor and associated parts is fed radially over the blades by means of a cross feed spindle 23. The blade may be of the same length as the cam 9 or it may be longer or shorter than the cam. The required axial movements relative to the motor housing are imparted to the cam by means of a spindle 28 driven through gearing, Fig. 4, from a wheel 24 on the cross feed shaft. It is stated that single blades may be machined by moving the tool with respect to a suitably chosen centre located in the blade surface. In the case of propellers with overlapping blades, some of the blades may be omitted and afterwards machined separately.
Patent GB-338790-A (GB)
Title: Electric cigar lighter
IPC: F23Q7/00
Filed: 1930-01-09
Abstract: 338,790. Wacker & Doerr S÷hne, Ges. Jan. 9, 1929, [Convention date]. No Patent granted (Sealing fee not paid). Lighting cigars and the like by electric devices.-An electric igniter for cigars and the like has a removable carrier 4 for the incandescent body 17, the carrier being clamped between a current conducting cap 5 and a resilient contact bolt 7 on a support 1. A press button switch 20, 21 places the cores 12, 13 in electrical communication.
Patent GB-750941-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1954-01-12
Abstract: The invention comprises a 3,11-diketo-17(b )-hydroxy-17(a )-methyl steroid having the formula <FORM:0750941/IV(a)/1> wherein R is hydrogen or methyl, and the preparation thereof by oxidizing with chromic acid (e.g. in acetic acid, 11(a )-hydroxy-17(a )-methyltestosteron or 10 - normethyl - 11(a ) - hydroxy-17(a )-methyl testosterone.  Examples disclose the preparation of 11-keto-17(a )-methyltestosterone and of 10-normethyl-11-keto-17(a )-methyltestosterone.  Specification 724,149 is referred to.
Patent GB-1529924-A (GB)
Title: Nickel based catalysts
IPC: B01J23/00
Filed: 1976-01-12
Abstract: 1529924 Nickel electrocatalysts AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 12 Jan 1976 [10 Jan 1975] 966/76 Heading B1E [Also in Division H1] A Ni-based catalyst suitable for a fuel cell electrode is formed of crystallites having size 20 to 130 , and is at most reversibly oxidisable under the action of an anodic overvoltage of -300 mV, and takes up spontaneously a potential close to that of a reversible ideal hydrogen electrode with respect to an electrolyte solution saturated with molecular hydrogen, so as to be capable of electrochemically oxidising H 2  to H<SP>+</SP>. It is made by evaporation of Ni in vacuo, e.g. by electron bombardment or resistance heating, at 10<SP>-6</SP> to 10<SP>-5</SP> Torr on to a substrate at 50-130C, except when the substrate is vitreous C, when a temperature of 90-170 is used. In making a fuel cell electrode, either the Ni is directly evaporated on to a conductive base, e.g. of vitreous C, or else Ni is evaporated on to a substrate, scraped off, and incorporated into C powder or PTFE powder to make an electrode, or the Ni is evaporated on to a subsequently dissolved base, e.g. Al or metal coated with Al, which is later dissolved in Korl, or cellulose, which is dissolved in an organic solvent, a steel tape advanced continuously may be coated first with Al, then Ni, the Al being later dissolved. The Ni may be post-annealed, it has lattice parameter 3.5170-3.5210 , or 3.5400- 3.5470  when on vitreous C, and the resulting electrode is used in a fuel cell for oxidation of H 2  using a KOH electrolyte.
Patent GB-1292604-A (GB)
Title: Improvements in or relating to the crushing and bending of tubes
Inventor: STANLEY KENNETH ERNEST
IPC: E04B1/24
Filed: 1969-01-07
Abstract: 1292604 Furniture joints and frames K E STANLEY 7 Jan 1970 [7 Jan 1969] 998/69 Heading A4H [Also in Divisions B3 and E1] A rigid tubular T-joint for use in tubular furniture, car seats, roof racks, toys and building frameworks has one of the tube ends 5B, Fig.3, bent at right angles and crushed to a semi-circular cross-section to fit against the other tube 7 to which it is bolted. The tube 5, Fig.8, can have both ends crushed to fit bars arranged at right angles to one another. Some frameworks can be formed as shown in Fig.9. Adjustable connecting members e.g. straps 43, Fig.13 (not shown) are used or lugs 40 in the crushed tube engage perforations 42 in the other tube, Fig.12 (not shown). In another embodiment, Fig.16, the crushed portion is formed with turned-back edges 44 to enable a clamp 45 to engage them the clamp being locked to the other tube by a grub screw 48. Figs.19 to 23 (not shown) show other methods of connecting the pipes. Two metal rods 50 and 51, Fig.18, are connected by a crushed and bent short metal tube 52 welded to the rods. The centre portion of a tube is crushed and bent to be joined to another tube, Fig.29 (not shown) or a flat plate 81, Fig.32, to which it is bolted. A building framework may be formed of lattice girders constructed from tubes joined as described above, Fig.31 (not shown).
Patent HK-48087-A (HK)
Title: Vending machine accountability system
Inventor: BARNES ELWOOD EUGENE
IPC: G07F5/24
Filed: 1987-06-18
Abstract: An accountability system for a vending machine system having means for vending products and means for determining credit, the accountability system comprising a portable electronic data file module which is removable from the system, and means for collecting transaction data from the vending machine system and recording it in the portable electronic data file module. A module interlock and a power monitor are provided to ensure that accurate information is stored in the module.
Patent HK-91392-A (HK)
Title: Conveyer system with rail-bound self-propelled carriages
Inventor: KURTZ ROLAND
IPC: B61L23/00
Filed: 1992-11-19
Abstract: My conveyor comprises an associated track-bound car including a drive motor supplied with drive current by current-carrying rails, a container, and a cover for the conveyor, as well as a track on which the conveyor runs by a plurality of stations. In order to prevent unauthorized opening of the cover a latch of a locking mechanism mounted in the track-bound car is restrained in a locked configuration. The latch can be unlocked by an electromagnetic unlocking mechanism mounted in the track-bound car. A very simple control of the unlocking mechanism can be provided, when, at a position or station in the conveyor where it is to be unlocked, an unlocking signal generator is present, which is automatically connectable with the track-bound car, in order to supply the unlocking mechanism with a required unlocking current.
Patent HU-T39100-A (HU)
Title: Apparatus for clearing away the floating solid material particles from gaseous medium
Inventor: FOELDI TIVADAR
IPC: B03C3/06
Filed: 1985-02-15
Abstract: The proposed equipment is based on an inlet pipe having guide openings, stream electrodes and distributor electrodes, all being located in the same gas space.
Patent HU-T56000-A (HU)
Title: Dust-separating apparatus for pre-separating dusts of industrial or agricultural origin flowing in the ducts of dust-extracting system respectively for decreasing the dust-charge of the system
Inventor: BRAUTIGAM KONRAD
IPC: B01D45/04
Filed: 1990-01-30
Abstract: The filter is mounted horizontally, and comprises inlet, diffuser, collector and discharge sections, and an internal conical guide fixed by means of plates. The inlet air is provided with a rotary motion and the separated dust is caught and discharged by the collector
Patent HU-T52962-A (HU)
Title: Process for production of medical compositions eliminating bone-absorption and promoting forming of bones
Inventor: FEYEN JEAN HONORE M
IPC: A61K38/00
Filed: 1989-02-17
Abstract: We have found that IL-6 molecules are useful in inhibiting bone resorption and increasing bone formation. They are thus useful in treating osteoporosis, e.g. acute and/or chronic stages of postmenopausal osteoporosis, including primary and/or secondary osteoporosis and localized osteoporosis, posttraumatic osteoporosis, Paget's disease of bone (osteitis deformans), osteolysis due to bone malignancies, e.g. osteogenic sarcoma, osteodystrophy, e.g. renal osteodystrophy, osteomalacia, multiple myeloma of the bone, osteogenesis imperfecta, hypercalcemia, osteomyelitis, e.g. in conjunction with antibiotics and ectopic calcification.
Patent JP-S5593997-A (JP)
Title: Centrifugal compressor
Inventor: ARAKAWA SEIJI
IPC: F04D27/02
Filed: 1979-01-08
Abstract: PURPOSE: To provide stabilized driving of an impeller by automatically making a labyrinth bush slide to regulate the labyrinth gap by a control device actuated by the suction flow rate and the exhaust pressure to regulate the by-pass flow rate.  
     CONSTITUTION: A flow rate indicating regulator 6 calculates the required by-pass flow rate (Q 2 -Q 1 ) using a pressure differential signal given by an orifice 2 and an exhaust pressure signal given by a pressure signal generator 4. The result of the calculation is sent to a regulator 12 which calculates the labyrinth gas δB required for allowing the flow of the calculated by-pass flow rate. A position detecting probe 13 send a labyrinth gap signal to the regulator 12 where the measured labyrinth gap signal is compared with the calculated gas δB, then the opening of a pressure control valve 19 is adjusted to shift and fix a labyrinth bush 11 at a position where the labyrinth gap coincides with the calculated gap δB. Thus stabilized driving of the impeller 10 is provided as the by-pass flow rate is continuously adjusted to  (Q 2 -Q 1 ). 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H09195938-A (JP)
Title: Oil supplying/discharging device for compressor
Inventor: KIMU HIYUN JIN
IPC: F04B39/02
Filed: 1997-01-06
Abstract: PROBLEM TO BE SOLVED: To improve cooling efficiency by providing in a sliding part between a cylinder and a piston, reverse flow preventing oil inlet valve means for supplying oil and reverse flow preventing oil discharge valve means for discharging oil. in an oil pocket to the outside. SOLUTION: Suction, compression and discharge action of refrigerant gas are repeated by the repetitive linear reciprocating motion of a piston 119. By the motion of the piston 119, a set is vibrated, and a mass body 121 is also linearly reciprocated and moved in an arrow X direction. Hereupon, the volume of an oil pocket 122 is increased, internal pressure is lowered, and an oil suction valve 143 inside an oil suction valve pipe 142 pushes an elastic member 144. Oil O frapped in the bottom part of a sealed container 111 is led to flow into the oil pocket 122. At this time, oil discharge valve means Q may not discharge oil O in the oil pocket 122 by the low pressure of a compressed space C and the restoring force of an elastic member 154.
Patent JP-H08188420-A (JP)
Title: Apparatus for producing synthetic quartz
Inventor: ENDO HOZUMI
IPC: C03B8/02
Filed: 1995-01-05
Abstract: PURPOSE: To provide an apparatus for producing a highly pure synthetic quartz. CONSTITUTION: A gel obtained by a sol-gel reaction is dried and the dried get is baked with a series of production apparatuses. In the reactor, grinder, drier and/or pipes, the parts that contact with the liquid, sol or get are made of titanium oxide, silicon oxide or aluminum oxide partially or totally.
Patent JP-H05180352-A (JP)
Title: Fluid holder and operating method therefor
Inventor: KANEKO TETSUYA
IPC: F16K13/00
Filed: 1992-01-06
Abstract: PURPOSE:To stop a valve without outside control by disposing, in a communication hole, a gel having a diameter smaller than that of the communication hole, which can be swelled when contacting with fluid. CONSTITUTION:A gel 2 which is increased in volume when contacting with fluid is disposed in a fluid passage 1a of fluid 4. In the case where the fluid 4 intrudes into the fluid passage 1a, the gel 2 is brought into contact with the fluid 4 so as to absorb it for swelling by making the fluid 4 as a solvent. A volume of the gel 2 is increased in conformity with a shape of a communication hole 3a because of flexibility of the gel 2, and accordingly, the communication hole 3a can be sealed without leakage to function as a stop valve. A dimension of the gel 2 with respect to the inner diameter of a tube 1 is such as to pass air inside the tube 1 before the gel 2 works as the stop valve. Consequently, it is possible to stop the valve without outside control.
Patent JP-S62221840-A (JP)
Inventor: ARUNORUTO UITSUHIMAN
IPC: G01R31/34
Filed: 1987-01-05
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08190725-A (JP)
Title: Laser diode driving device for optical information recording and reproducing device
Inventor: TATEISHI KIYOSHI
IPC: G11B7/126
Filed: 1995-01-06
Abstract: PURPOSE: To maintain a focus servo with good accuracy by adjusting bottom power of a laser beam on a laser diode based on an error signal. CONSTITUTION: A recording and reproducing head 30 is provided with an LD 31 for irradiating an optical disk as an optical recording medium with the laser beam for recording and reproducing information and a front monitor diode(FMD) 32 for detecting leakage light generated in accordance with irradiation of the laser beam by the LD 31 and generating a light power detecting signal having a level corresponding to the light power of this leakage light. A bottom level as the lower limit value of the light power detecting signal supplied from the FDM 32 is detected by a bottom level hold circuit 21, and the detected bottom level obtained by holding it is supplied to a subtractor 22.  A signal corresponding to a subtracted value obtained by subtracting the detected bottom level from a target bottom level supplied from a selector 41 is supplied as the error signal to an equalizer amplifier 23 by the subtractor 22, from which a compensated error signal obtained by compensating the error signal in phase is supplied to a bottom power current source 24.