baber/WOPTO huggingface dataset:
Patent GB-400976-A (GB)
Title: Improvements relating to oscillatory electric circuits, such as may be used, for example, in connection with cathode ray devices
IPC: H03K4/86
Filed: 1932-04-04
Abstract: 400,976. Valve generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Hayes, Middlesex, and BLUMLEIN, A. D., 32, Woodville Road, Ealing, London. April 4, 1932, No. 9651. [Classes 40 (iii) and 40 (v).] A generator of saw-tooth oscillations has two reactive circuits 7, and 7, 8, Fig. 1, with different reactive properties, and means 2, controlled by applied signals, for transferring the control of the form of the generated wave from one circuit to the other. Normally a positive potential Vg on the grid of the thermionic valve 2 keeps its impedance low, so that the voltage Vc across the controlling-coil 7 of a cathode-ray tube, due to a high-tension source 6, is substantially constant, and the current IL in the coil increases from zero at a uniform rate. When a negative synchronizing impulse is applied to the grid, the impedance of the valve increases and the current IL is diverted to the condenser 8. This starts an oscillation in the circuit 7, 8, which is stopped after half a cycle by the condenser discharging through a diode 3. The current IL is now in the opposite direction, and is reduced to zero at uniform rate by the battery 6, thus completing the cycle, Fig. 2 (not shown). A tuned circuit 9 prevents spurious oscillation. According to modifications, the amplitude of the synchronizing impulse is increased by backcoupling from the coil 7 to the transformer 1, Fig. 3 (not shown) ; the inversion of the diode is avoided by connecting it across a coil coupled to the coil 7 ; the controlling coil of the cathode-ray tube is coupled to the inductance 7 by a condenser ; the wave form of the synchronizing impulses corrects the effect of resistance in the circuits. As shown in Fig. 4, a condenser 14 across the controlling-plates of the tube is charged at a uniform rate from a high-tension source 17 through a large inductance 15. A positive synchronizing-impulse on the grid of a gas-discharge valve 12 makes it conducting to discharge the condenser through a coil 13. This starts an oscillation in the tuned circuit, but, after half a cycle, the condenser charges in the opposite direction and applies a negative potential to the anode of the valve 12, which ceases to conduct. The condenser is then discharged at a uniform rate through the inductance 15, thus completing the cycle, Fig. 5 (not shown). At low frequencies, mechanical switches may be used in place of the valves 2, 12.
Patent GB-982276-A (GB)
Title: Dredging apparatus and method
IPC: E02B3/02
Filed: 1963-03-12
Abstract: 982,276. Scouring apparatus; erosion preventing. UNITED STATES RUBBER CO. March 12, 1963 [May 4, 1962], No. 9687/63. Headings E1F and EIH. A dredging apparatus, which may be used to compensate for erosion, is adapted, on suspension in a liquid undergoing wave motion, to transport a particulate in a bed beneath the liquid from one zone of the bed to another, which apparatus comprises a baffle valved so as to permit flow of liquid therethrough in one direction only and means for suspending the baffle in the liquid at a level adjacent to the bed at a selected point above the bed. Fig. 8 shows the apparatus anchored in still water above the bed 62 of material to be dredged. The baffle 20 carrying valve panels 26 is supported by a member 16 carried by floats 14. When a wave crest advances towards the shore (Fig. 9) water flows through the baffle in the direction of the arrows. As the wave trough then advances (Fig. 10), the valve panels close and the water is deflected under the baffle and thereby agitated so that particles 64 are lifted from the bed 62. The next wave crest (Fig. 11) causes the particles to be carried through the baffle and deposited in the zone 66. As shown in Fig. 12 material is transported from the zone 68 to build up a desposit in zone 66. Fig. 19 shows the dredging baffle secured to anchors 58 by the ropes 56, 57, the anchoring loads being reduced by the incorporation of a seawardly valved shoreward baffle 76. Specification 632,722 is referred to.
Patent GB-946055-A (GB)
Title: Improvements in or relating to vertical pump-driving shaft arrangements
Inventor: LEHTINEN SULO
IPC: F04D29/04
Filed: 1962-03-14
Abstract: 946,055. Shafts; shaft couplings; machinery guards. MAAKUNNAN METALLI S. LEHTINEN & K. NI. March 14, 1962, No. 9732/62. Headings F2J and F2U. A vertical shaft arrangement comprises a number of sub-assemblies each having a protecting tube 2 on which is mounted a thrust bearing 4 supporting a shaft 1 having means 6 to connect adjacent shafts for rotation and allowing axial movement, the protecting tubes being rigidly secured together. The shaft 1 has a collar 5 engaging the thrust bearing 4 and the connecting means may be hexagonal portions joined by a sleeve 7 or the end portions may be male and female. The tubes 2 may be secured together by a tube 8 having split clamps 10 and the ends of the protecting tubes may have oil seals 13. The shaft arrangement may be used to drive a pump.
Patent GB-665197-A (GB)
Title: Improvements in and relating to synthetic resins
IPC: C08G8/22
Filed: 1948-04-07
Abstract: Synthetic resins are prepared by condensing a fraction from the low temperature carbonization of coal, of which the major constituent is resorcinol and which also contains substantial quantities of methyl-resorcinols together with a proportion of neutral oils and bases with formaldehyde or a polymer in two steps, condensation in the first step being effected with a formaldehyde/phenols ratio of 0.5-0.6 and a pH 7.5-8.5 to produce a syrup which is hardened in the second step by addition of further formaldehyde or polymer.  In two examples fractions containing respectively 90 and 70 per cent of resorcinol, 10 and 30 per cent of methyl resorcinols, 0.04 and 0.05 per cent of organic bases and both containing 0.1 per cent of neutral oils are dissolved in aqueous caustic soda and condensed with paraformaldehyde; ethyl alcohol is added and the syrups treated with a mixture of paraformaldehyde and wood flour as described in Specification 589,717 to yield cold setting glues.  The Specification also describes resins made in accordance with Specification 589,717, but in which pure resorcinol is replaced by resorcinol mixed respectively with 2-methyl resorcinol, 4-methyl resorcinol, 5-methyl resorcinol, hydroquinone and 4-methyl catechol.
Patent GB-1026335-A (GB)
Title: Fluorinated hydrocarbon compositions
IPC: C09K5/02
Filed: 1963-03-12
Abstract: A low-boiling composition suitable for use as a refrigerant consists of difluoromethane and monochloropentafluoroethane and contains from 13 to 28 mol per cent of the latter.  The mixtures boil at about -57.1 DEG  C.
Patent GB-729543-A (GB)
Title: Improvements in and relating to magnetron amplifiers
IPC: H01J25/54
Filed: 1951-04-26
Abstract: 729,543. Magnetron amplifiers. BRITISH THOMSON-HOUSTON CO., Ltd. April 26, 1951 [May 10, 1950], No. 9786/51. Class 39 (1). [Also in Group XL (c)] A magnetron comprising a plurality of anode segments surrounding the cathode and a high impedance or resonant structure interconnecting the segments has the ratio of the electrostatic and magnetic field strengths adjusted to impart to the space charge an average velocity along the segments sufficiently high to induce a wave travelling along the segments, but below the velocity required for oscillation. In this condition the magnetron is stated to be capable of developing across a load connected to the high impedance or resonant structure, an amplified output when high-frequency signals are applied to the high impedance or resonant structure. In a multi-cavity magnetron the high impedance or resonant structure is constituted by the resonant cavities and in a magnetron of the split-anode type by a tuned Lecher-line. The source of high-frequency signals may comprise a structurally similar magnetron. As shown, coupling between the oscillator magnetron 11a, 12a and the amplifier magnetron 11, 12 is achieved by means of a common resonant line 7 short-circuited at its ends by members 8 and 19. A tuning stub line 20 is connected to the line 7 at the point where the load 10 is connected.
Patent GB-929610-A (GB)
Title: Improvements in lawn mowers
IPC: B60V3/02
Filed: 1962-03-14
Abstract: 929,610. Reaping machines. FLYMO A.B. March 14, 1962 [March 16, 1961], No. 9848/62. Class 6(3). A lawn mower is supported on an air cushion. A motor 10 drives a blade 12 and a blower 13, 14, 15 arranged in a housing 1 which directs air downwards from the blower on to the ground thereby supporting the mower. A handle 27 is arranged for guiding the mower and a wheel 24 is positioned on the housing as shown in Fig. 5 and arranged so that the mower may be tilted so that it is supported on this wheel when the blower is not operating. A wire net is positioned across the air inlet to the blower.
Patent GB-511082-A (GB)
Title: Improvements in and relating to the measurement or indication of the thickness of thin sheets, coatings and the like
Filed: 1938-03-31
Abstract: 511,082. Transformers. GENERAL ELECTRIC CO., Ltd., TURNER, H. C., and FIELDING, E. A. March 31, 1938, No. 9854. [Class 38 (ii)] [Also in Group XXXVI] Electromagnetic gauging apparatus for measuring the thickness of thin sheets and coatings wherein the sheet forms part of the reluctance path of a transformer core has one or more magnetic shunts associated with the core. As shown, the main core comprises strip material 2, two U- shaped shunts 3, 3<1> with an air-gap between them being arranged within the main core and held in position by an insulating plug 4. The ends of the main core project below the plug 4 and are constructed to have a three-point seating upon the material under test. Connections to the input and output coils 5, 6 are made by leads 5', 6<1> engaged by a disc 11 and anchoring pin 10 to prevent undue strain upon them. The inner limbs of the shunt cores 3, 3' can be in contact thus dispensing with the support plug 4. Short extensions can project from each inner limb toward the main core, and these can be employed for adjusting the air-gaps between the inner and outer cores for controlling the amount of shunt flux.
Patent GB-1321552-A (GB)
Title: Heartbeat monitors
IPC: A61B5/0245
Filed: 1971-04-19
Abstract: 1321552 Electro-medical apparatus AMERICAN OPTICAL CORP 19 April 1971 [11 May 1970] 9912/71 Heading GIN In a system for indicating the natural heartbeats of a patient whose heartbeats are periodically stimulated by a pacer 10, a signal is generated when the heart 19 is stimulated prior to the beating thereof, heartbeats being indicated as natural only in the absence of said signal. As shown, upon the occurence of each beat, whether natural or stimulated, a pulse appears on line 21, a pulse appearing on line 22 only upon the occurrence of a stimulating pulse. This latter pulse is applied to a disable circuit 37 which provides a signal to disable a sensor 31 for a pre-set period so that a monitor 33 can only indicate the natural beats. Pacer pulses may be indicated at 34. In a modification, Fig.2 (not shown), a pulse on line 21 is arranged to switch a first transistor (52) to operate a natural beat meter (71), and a pulse on line 22 is arranged to switch a second transistor (50) to operate a stimulated beat meter (70). However, upon the occurrence of a pulse on line 22, a timing circuit of which the transistor (50) forms part, prevents the pulse on line 21 from switching transistor (52) and thereby the meter indication. In an alternative, Fig.3 (not shown), the pulses on lines 21, 22 each operate a respective one-shot multi-vibrator whose outputs are connected to an AND gate. When a pulse appears on line 21, in the absence of a pulse on line 22, the AND gate is enabled to switch a transistor to operate a meter. A transistor is also provided for operating a meter to indicate stimulated pulses.
Patent GB-541762-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D13/00
Filed: 1940-06-07
Abstract: 541,762. Lasting machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., LANE, H., and BARTON, W. A. June 7, 1940, No. 9944. [Classes 17 (i) and 89 (iii)] The lasting machine described in Specification 283,978, [Class 17 (i)], provided with the stapling mechanism described in Specification 527,304, is improved. The staple is inserted in line with the pull of the gripper instead of to one side thereof. Adjustment for curvature of the staple as this is driven does not alter the relative position of the staple deflector and driver at the end of the stroke. An improved stop for wire feed prevents curved wire causing staple legs of unequal length. One jaw 5 of the gripper is carried by the slide 3 described in the prior Specifications, stops 11 thereon maintaining it spaced from the staple guiding member 7 described in the prior Specifications. The other jaw 15 is carried by a bar 19 pivoted to a cam-actuated lever 29 and guided by a sleeve 21 pivoted at 23 to a slide-bar 25 reciprocated by a cam-actuated bell crank lever 49. This lever is moved positively to give the upperstretching pull, but is returned by a spring 57, which may be increased in tension by swinging a handle housing a spring plunger 65 to the right. The tension of this spring is decreased by an adjustable cam-actuated lever when the slide 3 has completed about one-third of its forward movement, the jaw being released by the time the jaw 5 is pressing sufficiently hard on the upper to prevent it slipping back. The staple deflector 71 is fixed to the slide 3, and adjustment of the staple guiding member 7 up or down to vary the curvature of the staples is made by a handle 83 secured to an eccentric sleeve 77 which is substituted for the pin on which is pivoted the lever 81 described in the prior Specification. A segment 89 is carried by the pin, and another segment 91 is angularly adjustable to or from the first segment, the two segments each having a notch to co-operate with a spring plunger 87 sliding on the handle 83. The staple driver thus reaches an invariable position at the end of its stroke so that it properly embeds the staple in the work, while the staple guide is adjusted to vary the curvature of the staple as it is driven. To prevent one leg of the staple being longer than the other, the stop described in the prior Specification is substituted by a recess 107 in a plunger 103 backed by a weak spring 105 and provided with an adjustable stop 111. Slots 102 in the outside former guide the wire to the recess. Specification 294,640, [Class 17 (i)], also is referred to.
Patent GB-466268-A (GB)
Title: Improvements in the manufacture of intermediates for dyes
IPC: C07D277/84
Filed: 1935-08-15
Abstract: Formylmethylene compounds having the general formula <FORM:0466268/IV/1> or <FORM:0466268/IV/2> where D = a vinylene or arylene group, R = alkyl and Y = the non-metallic atoms necessary to complete a 5-membered or 6-membered heterocyclic nucleus are made by hydrolyzing in acid or alkaline media a compound of the formula <FORM:0466268/IV/3> or <FORM:0466268/IV/4> where D = vinylene or arylene, R = alkyl, R<1> = aryl, X = an acid radical, Z = H or an acyl group and Y = the non-metallic atoms necessary to complete a 5-membered or 6-membered heterocyclic nucleus.  For example, R may be methyl, ethyl, n-butyl or n-decyl, X may be halide, alkylsulphate, p-toluenesulphonate or perchlorate, the 5-membered nucleus may be a thiazole nucleus, e.g. 4-methyl- or 4-phenylthiazole, benzthiazole or naphthathiazole, selenazole, benzselenazole, an oxazole, e.g. benzoxazole or naphthoxazole, thiazoline, selenazoline, an indolenine, e.g. a 3 : 3-dialkylindolenine, and the 6-membered nucleus may be a pyridine, quinoline or benzquinoline nucleus, Z may be H, acetyl, propionyl, benzoyl or naphthoyl and R<1> may be phenyl, naphthyl, tolyl or p-chlorphenyl.  They may be used for the production of dyes for sensitizing photographic emulsions.  In examples: (1) 1 - formylmethylene - 2 - methylbenzthiazoline <FORM:0466268/IV/5> is made by hydrolyzing 1-b -acetanilidovinylbenzthiazole methiodide with alcoholic potash or hydrochloric acid; (2) 1-ethyl-2-formylmethylene-b -naphthathiazoline <FORM:0466268/IV/6> is made by hydrolyzing 2-b -anilidovinyl-b -naphthathiazole ethiodide with alcoholic sodium hydroxide; (3) 2-formylmethylene-1-methyl-1 : 2-dihydroquinoline <FORM:0466268/IV/7> is made similarly from 2-b -anilidovinylquinoline methiodide; (4) 2-ethyl-1-formylmethylenebenzoxazoline <FORM:0466268/IV/8> is made by hydrolysis of 1-b -acetanilidovinyl-b -benzoxazole with alcoholic sodium carbonate; it gave colourations of unsymmetrical carbocyamines on treatment in acetic anhydride with quaternary salts containing reactive methyl groups.  Specifications 466,244 and 466,245 are referred to.  The b -anilidovinyl derivatives are made from the corresponding C-methyl heterocyclic compounds and diphenyl-formamidine, e.g. 2-b -anilidovinyl - b  - naphthathiazole ethiodide is made by fusing 2-methyl-b -naphthathiazole ethiodide with diphenyl-formamidine.
Patent HK-120695-A (HK)
Title: Method and apparatus for recording digital data signal
Inventor: OSAWA EIICHI
IPC: G11B20/18
Filed: 1995-07-20
Abstract: A method of recording a digital data signal, such as an audio PCM signal, onto a recording medium in the longitudinal direction thereof, together with an apparatus which is suitable for this recording method. Even-numbered words and odd-numbered words in a digital data signal are recorded on a first track group and a second track group, respectively, which are separated from each other in the widthwise direction of a recording medium, to prevent a series of words becoming error words because of, for example, a flaw in the recording medium in the longitudinal direction thereof. The data format is changed at the input and output of a recording encoder to enable an error correction code and a recording circuit to be used in common for digital tape recorders which have different numbers of tracks, e.g., n tracks and 2n tracks. When an error correction code is recorded in such a manner that one word in the digital data signal is divided into a plurality of symbols which are formed into an error correction code, a plurality of symbols of the same word are recorded at a position at which error correlation is strong, making effective use of the error correction capacity of the error correction code.
Patent HU-T41973-A (HU)
Title: Cover particularly for covering ripening tanks
Inventor: DOBROVITZ JOZSEF
IPC: A23B7/10
Filed: 1985-04-23
Abstract: The proposed lid is in the form of a bag, which may be filled with a liq., pref. water.
Patent HU-T67232-A (HU)
Title: Method and device for modification of chemical composition of inner surface of cask
Inventor: CORDIER BERNARD
IPC: B27H5/08
Filed: 1991-06-07
Abstract: Process permitting the modification of the chemical composition of the internal face of a barrel, consisting in heating and moistening the internal face of the shell (1) of this barrel, characterised in that it consists in heating and moistening alternately, using a heating power and a liquid flow rate which are determined and for a determined time, the heating being distributed over the whole height of the shell. The invention also relates to a machine using this process and comprising a rotating substrate (12), heating means (19) and moistening means (20, 21, 22) which are movable vertically along the main axis of the barrel. Application: barrels for wines and alcohols.
Patent HU-T34711-A (HU)
Title: Process for the solution of metals
Inventor: VADASDI KAROLY
IPC: C01G39/00
Filed: 1983-08-17
Abstract: Molybdenum metal is dissolved or selectively dissolved in the presence of tungsten, titanium, zirconium, hafnium, vanadium niobium and tantalum by treating the metal or metal mixt. with a soln. contg. mineral acid and electron accepting ions, pref. trivalent iron ions under an excess pressure of oxygen at 20-300 deg. C.
Patent HU-T56979-A (HU)
Title: Method and apparatus for developing structure of data signal on data carrier
Inventor: BAKX JOHANNES LEOPOLDUS
IPC: G11B5/00
Filed: 1990-06-20
Abstract: In the method and the device disclosed herein at least one record-carrier-dependent parameter (Is), which influences the quality of the recorded information pattern (58, 59), is adjusted. In determining the optimum setting of the parameters (Is) a calibration area (21) is selected from a number of predetermined calibration areas (21a,..., 21d). The selected calibration area (21) is provided with test patterns for different settings of the parameter. On the basis of the test patterns thus formed the optimum setting of the parameters is determined in accordance with a predetermined criterion. The parameters are adjusted in accordance with said optimum setting during the recording of the information patterns (58, 59). Each time that an optimum setting is determined an auxiliary pattern is formed in an auxiliary area (22) assigned to the calibration area (21), which auxiliary pattern indicates that test patterns are present in the associated calibration area. Each time that the optimum setting is determined the test area to be used is selected on the basis of the auxiliary patterns formed in the auxiliary areas (22a,..., 22d).
Patent HU-T56199-A (HU)
Title: Method for making read-only compact disc and compact disc made by this method
Inventor: LEDIEU JEAN
IPC: G11B7/26
Filed: 1990-11-07
Abstract: Method of manufacturing an optical reading disc, in particular for producing and fixing the recording of a coded datum in a sensitive resin layer applied to a transparent substrate of inorganic material, such as glass in particular, the resin layer preferably being covered on the outside by a thin protective layer. 
<??>According to the invention, this method is characterised in that it consists in recording, in a manner known per se, the signal corresponding to the coded datum by localised activation of the sensitive layer (3) through the substrate (2), and in then removing the protective layer (4), in etching the substrate through the activated zones of the sensitive layer acting as an etching mask, in lifting off the remainder of this sensitive layer, in coating the etched substrate with a thin reflective metallic layer (9) and lastly in depositing a final outer protective layer (10) on the metallic layer. 
<??>The invention also relates to the optical discs obtained by this method. 
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Patent JP-S61160902-A (JP)
Inventor: NAGAI TAKESHI
IPC: H01C7/04
Filed: 1985-01-08
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-2000200122-A (JP)
Title: Radio lan device
Inventor: KOBAYASHI KAZUO
IPC: G06F13/00
Filed: 1999-01-06
Abstract: PROBLEM TO BE SOLVED: To enable a radio LAN device to transmit optical data and to connect the computer peripheral equipment of an USB(universal serial bus) standard. SOLUTION: The up port 11 and down port 12 of an USB port are mounted on this device 10, and the peripheral equipment is connected to the USB port. Also, an optical port 16 is mounted to the radio LAN device 10, the device 10 is turned to a radio data transmitter and the transmission of the data by optical communication is made possible.