baber/WOPTO huggingface dataset:
Patent GB-1018405-A (GB)
Title: A process for the production of highly pure hexagonal cadmium and zinc chalkogenides
IPC: C01B19/00
Filed: 1963-10-10
Abstract: Pure hexagonal form crystals of cadmium sulphide, -selenide or -sulpho selenide or zinc sulphide are made by heating a technical grade chalkogenide in zone I to temperatures between 750 DEG  and 1200 DEG  C. at pressures below 0.1 mm. H.G. air pressure to evaporate the chalkogenide and volatile impurities and crystallizing pure chalkogenide in zone II, zone II being maintained at a lower temperature than zone I and the temperature gradient in zone II being 5 to 15 DEG  C/cm., the partial pressure of the chalkogenide in zone II being elevated by means of a throttle arrangement above the valve which would otherwise exist under the applied vacuum. The particular description relates to the production of pure cadmium sulphide in the apparatus of the drawing (not shown).  The starting material lies in tube 1 which is partially closed by pieces 2.  Next to pieces 2 are tubes 4, plates 6 and the throttle arrangements 5, which may be plugs of quartz wool.  The assembly is mounted in outer tube 7 which may be evacuated; zones I and II of the tube may be heated electrically.ALSO:Pure hexagonal form crystals of cadmium -sulphide, -selenide or -sulpho selenide or zinc sulphide are made by heating a technical grade chalkogenide in zone I to temperatures between 750 DEG C. and 1200  DEG C. at pressures below 0,1 mm. Hg. air pressure to evaporate the chalkogenide and volatile impurities and crystallizing pure chalkogenide in zone II, zone II being maintained at a lower temperature than zone I and the temperature gradient in zone II being 5-15  DEG C./cm., the partial pressure of the chalkogenide in zone II being elevated by means of a throttle arrangement above the valve which would otherwise exist under the applied vacuum.  The particular description relates to the production of pure cadmium sulphide in the apparatus of the drawing (not shown). The starting material lies in tube 1 which is partially closed by pieces 2.  Next to pieces 2 are tubes 4, plates 6 and the throttle arrangements 5, which may be plugs of quartz wool.  The assembly is mounted in outer tube 7 which may be evacuated; zones I and II of the tube may be heated electrically.
Patent GB-932105-A (GB)
Title: A tooth cleaning device
IPC: A46B11/00
Filed: 1960-11-22
Abstract: 932,105. Teeth cleaning devices. C. G. DORNBRACK, [trading as TOSTEDTER CHEMISCH FABRIK C. G. DORNBRACK]. Nov. 22, 1960 [Dec. 10, 1959; Dec. 24, 1959], No. 40047/60. Class 81 (2). [Also in Group XXIII] A tooth cleaning device comprises a flexible bottle 1 having an internal spring 5 which restores its shape after squeezing and a tubular spout 2 provided with a rectangular mouthpiece 3 for application to the teeth. The spout has a rectangular outlet end which is fitted into a recess 8 in the mouthpiece 3. The mouthpiece has a distribution chamber 10 in communication with the spout and with circular openings 11 or slots (not shown). The openings may be inclined relative to the mouthpiece wall in which they are formed. The mouthpiece may be made of resilient material or have projections of resilient material along the sides for massaging the gums.
Patent GB-1041352-A (GB)
Title: Improvements in power supplies
Inventor: DUMPLETON OWEN WALTER
IPC: G05F1/573
Filed: 1961-11-10
Abstract: 1,041,352. Automatic voltage control systems. BABCOCK & WILCOX Ltd. Nov.12, 1962 [Nov.10, 1961], No. 40325/61. Heading G3R. A series voltage stabilizing circuit comprising transistors 8, 25, 27, 29 connected in an emitter follower chain controlled by a transistor 13 biased from a potentiometer 23 through a diode 22 and zener diode 21, has current limitation applied by a transistor 41 which is rendered conductive on overload by large current pulses supplied to a capacitor 12 from a rectifier 10 causing a voltage pulse to partially block transistor 41 which increase the potential of line 49 and hence the base potential of transistor 13 which increases the impedance of transistor 8. This lowers the base potential of transistor 41, hence through cumulative action the transistor 8 is practically cut off. The circuit remains locked in this condition even though the overload has disappeared until a switch 11 is opened manually. A resistor 42 may comprise the coil of an alarm relay.
Patent GB-1036078-A (GB)
Title: High load capacity dry film lubricants
IPC: C09D5/00
Filed: 1964-10-05
Abstract: A lubricant composition consists of 40-85% of a dry lubricant and 15-60% of a condensation product of (a) 40-95% of an aromatic epoxy resin and (b) 5-60% of an organosilicon compound of formula <FORM:1036078/C4-C5/1> where each R is a monovalent aromatic hydrocarbon radical or an alkyl radical containing less than 7 carbon atoms, R1 is -OH or a hydrolysable radical, n has an average value of 0.8-3, m has an average value of 0.1-3.2 and m + n is not greater than 4.  Dry lubricants specified are molybdenum disulphide, graphite, antimony trioxide, titanium disulphide, tungsten disulphide, bismuth, lead sulphide, lead oxide, polytetrafluoroethylene, magnesium oxide, boron nitride, calcium fluoride, zirconium disulphide, colloidal silver and mixtures thereof. The composition may be dispersed or dissolved in a solvent, applied to a metal surface and cured at 100-200 DEG  C.  The composition may also contain fatty acids.
Patent GB-958737-A (GB)
Title: Maximum current and voltage value indicator
IPC: H03K3/315
Filed: 1962-10-26
Abstract: 958,737. Semi-conductor switching circuits. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1962 [Oct. 28, 1961], No. 40611/62. Heading H3T. [Also in Division G4] An indication circuit comprises a number of tunnel diodes, having differing values of peak current, connected in series to which may be applied a signal whose maximum value is to be measured, the signal setting some of the diodes to their high voltage state; and a monostable circuit connected to the tunnel diodes, which may be enabled to generate a number of pulses, each of which sets to its high voltage state one of the tunnel diodes not so set by the signal to be measured, the number of pulses necessary to set all such diodes being an indication of the value of the signal. As described, closure of switch S1 sets the monostable circuit comprising Tr1 Tr2 to its unstable state with Tr2 cut-off. Tunnel diodes TDK are set to their low voltage state (for example by shorting them out), and resistor R maintains a sufficient current through them to exceed the highest valley, but not to exceed the lowest peak. If switch S2 is not closed connecting the supervised circuit K, a number of the diodes will be switched to their high voltage state, the number switched depending on the signal level applied. Upon release of the two switches S1 S2 current flows through Tr2 and the current through the tunnel diode chain TDK increases until it reaches the peak value of one of the diodes still in its low state. A voltage step then occurs which is fed via capacitor CK to retrigger the monostable circuit to its unstable state. When the monostable circuit again returns to normal the current in the diode chain will again increase, and the cycle repeats until all diodes are switched to their high state. The number of cycles made before all diodes are in their high state is then indicative of the value of the signal applied to the circuit. Specification 957,348 is referred to.
Patent GB-989886-A (GB)
Title: Improved automatic beverage dispensing machine
Inventor: STUTZ JOSEPH NORMAN
IPC: A47J31/22
Filed: 1961-11-15
Abstract: 989,886. Beverage dispensing machines. VENDBAR INDUSTRIES Ltd. Feb. 14, 1963 [Nov. 15, 1961], No. 40944/61. Headings A4D and A4T. Apparatus for preparing a beverage, e.g. coffee, soup, hot or cold, but particularly cold beverages formed by dispersion of powdered beverage base in refrigerated water, has several conical containers 4 of powdered base carried around a central shaft 32 turned by motor M to rotate a blending cup 30 positioned to receive powder from the apex opening 6 of a selected container 4 and water via pump P and pipe 54. A customer starts the apparatus by, e.g. a coin actuated switch, and engages a solenoid clutch 2 for a selected container whereby, under the control of a timing device, the motor drives the blender all the time the pump forces water into the cup, the motor via the clutch and gearing 92, 96 drives a powder agitator 18 and an auger 16<SP>1</SP> to deliver a quantity of powder to the cup, and a cup 55 is positioned to receive the beverage when a solenoid fork 49 lowers a funnel 37 to open peripheral cup valves through which the beverage is forced by centrifugal force to the dispensing nozzle 44. The apparatus hinges on arms 78, 78<SP>1</SP> out of its casing 82 for refilling, cleaning or repair.
Patent GB-872713-A (GB)
Title: Discrete dual-walled capsules and process for producing the same by coacervation
IPC: B01J13/08
Filed: 1959-12-03
Abstract: Discrete capsules, each consisting of a single, substantially p water-insoluble core entity surrounded by an encapsulating wall consisting of a plurality of hydrophilic colloid materials, at least one of which is gellable, are prepared by forming a dispersion of the core material in an aqueous dispersion of the colloid material, causing complex coacervation of the said colloid material some of which coats the core particles, effecting decoacervation (i.e. redispersion) of the remnant colloid material, adding supplementary colloid material, and again causing complex coacervation whereby a further coating of colloid material is deposited on to the first coating.  The coating may subsequently be gelled, e.g. by chilling and, if desired, hardened or plasticized.  The core material may be liquid, e.g. an animal, vegetable, mineral or partly or wholly synthetic oil, a solid or a solid dispersed in a liquid and it may be a food, drug, dye, chemical reactant, perfume, flavouring, electrostatic or magnetic material.  Specified colloid materials are gelatin, gum arabic and ethylene-maleic anhydride copolymer (molecular weight about 1000 to 2000 and 50,000 to 70,000).  It is preferred that the latterly deposited colloid "complex" is similar but not identical to that deposited initially, e.g. the first may consist of the copolymer of molecular weight 1000 to 2000, gelatin and gum arabic and the second may differ in that the copolymer is of molecular weight 50,000-70,000.  Coacervation and decoacervation may be effected by known methods, e.g. variation of pH or temperature, the process being carried out under continuous stirring at a temperature above the gel point of the gelable colloid. Specification 757,100 is referred to.
Patent GB-991889-A (GB)
Title: Improvements in polarography
Inventor: BRIGGS RONALD
IPC: G01N27/48
Filed: 1960-11-30
Abstract: 991, 889. Determining the relative quantities of fluid mixture constituents. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Nov. 30, 1961 [Nov. 30, 1960], No. 41101/60. Heading G1N. In an arrangement for determining the concentration of a constituent of a gas mixture, the mixture and a gas containing a known amount of the constituent are passed alternately for predetermined periods through the electrolyte of a dropping mercury polarograph. In a polarograph cell, Fig. 1 (Prov.) the mercury droplets are delivered by a tube 7 directed upwards at an angle of at least 45 degrees and the gas is injected by a pipe 10 through a porous plug 11. A zinc/sodium acetate reference electrode having a pH of at least 5. 5 and terminating in a sintered plug 6 is provided with its end projecting into the electrolyte, which for the detection of oxygen may comprise a solution of 0. 05 NKC, with 1% anhydrous Na 3 PO 4 . Temperature responsive elements such as thermistors may be placed in contact with the main body of the electrolyte for compensation purposes, and a vent 13 is provided for the escaping gas. In a modification described with reference to Fig. 2 (not shown) the reference electrode is silver/silver chloride, which may be placed close to the dropping mercury electrode, the gas is injected by a nozzle against the wall of the electrolyte containing stem, and, the mercury drops are collected in a narrow bore trap which opens through the base of the stem. The gas flow is controlled by a uniselector timing circuit Fig. 3 (not shown) and electromagnetic valves. The electrolyte comprises 25. 2 gms of disodium hydrogen phosphate hydrate and 4 gms of potassium chloride, its pH value being about 8. 5. The temperature and humidity of the injected gas may be controlled. Gas injection rates and component values are given. Specification 936,724 is referred to.
Patent GB-1174028-A (GB)
Title: Hydraulic Rudder-Acting Gear
Inventor: AJAMIL LUIS ASENJO
IPC: F15B15/12
Filed: 1968-08-29
Abstract: 1,174,028. Steering gear. L. ASENJO AJAMIL. 29 Aug., 1968 [3 May, 1968], No. 41219/68. Heading B7V. Hydraulic rudder-actuating gear comprises two arcuate -pistons 5, 6, pivoted to a tiller arm 8 and slidable in respective arcuate cylinders 1, 2, the pistons and cylinder axes being centred on the axis of rotation of the tiller arm. The pistons have adjacent forked ends pivoted to arm 8 by a pin 7. A guide 11 extending between the cylinders carries blocks 12 guiding the pistons. Hydraulic fluid is directed by an electric pump to and from the respective cylinders to move the pistons. A plate (10, Fig. 3, not shown) connecting the cylinders journals the end of the rudder shaft (9).
Patent GB-1218538-A (GB)
Title: Indirect heat exchange method
IPC: F28D19/00
Filed: 1969-08-19
Abstract: 1,218,538. Heat transfer systems. HEINRICH KOPPERS G.m.b.H. 19 Aug., 1969 [24 Aug., 1968 (2)], No. 41286/69. Heading F4U. A heat exchange system utilizing a heat transfer fluid in both the liquid and vapour phases wherein the vapour phase is passed through one heat exchanger 8 to give rapid thermal transfer while avoiding overheating while the liquid phase is passed through a separate heat exchanger 15 to give a slow but precise heat transfer. Heat transfer fluid in a liquid state is heated in a pipe still 3 and then passed into a flash evaporator 5 where it is expanded producing a vapour phase 6 and a liquid phase 12. The respective phases are fed through lines 7, 13 to the heat exchangers 8, 15 where they transfer their heat to heatreceiving medium flowing through the ducts 9 and 16. The vapour phase transfer fluid is condensed in the exchanger 8. Transfer fluid leaving the exchanger 15 together with the condensed transfer fluid from exchanger 8 are recycled to the pipe still 3 by way of line 18. The heat transfer liquid, which may be pressure refined crude benzole that boils within the range 150-220‹ C., is heated in tubes 2 by burners 4. The flow of fuel to the burners is controlled in dependence of the pressure within the flash evaporator. A heat flow meter 19 is adapted to control the delivery rate of a pump 14 in the liquid phase line 13.
Patent GB-879630-A (GB)
Title: Spool cores
IPC: H04B3/32
Filed: 1959-12-04
Abstract: 879,630. Bobbins. BEIERSDORF & CO. A. G., P. Dec. 4, 1959 [Dec. 5, 1958], No. 41327/59. Class 120(3) Adhesive tape 1 is wound on a spool core 3 comprising a cylinder of resilient material such as polythene having slits 2 extending inwards from the edges.
Patent GB-1530947-A (GB)
Title: Reflectance measuring method
IPC: G01J3/02
Filed: 1976-10-06
Abstract: 1530947 Measuring reflectance INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [10 Oct 1975] 41548/76 Heading G1A The reflectance of a test sample 28 in the blackened chamber 13 of a spectrophotometer is calculated from its reflected light output and that of a standard white sample, corrections being included for reflection from the chamber walls, wall reflectance for this purpose being calculated from the standard white output and the output of a mirror sample. The white sample may be a ceramic plaque which has been previously compared with a primary standard of barium sulphate to obtain a scaling factor. To compensate for the dark current of the photo-multiplier detector 24 and for the reflectance of the glass plate 27 covering the test sample the output of a black ceramic plaque as sample is measured.
Patent GB-1123196-A (GB)
Title: A supervisory signalling system
Inventor: METSHEV ALEXANDER NIKOLOV
IPC: G08C19/12
Filed: 1965-09-30
Abstract: 1,123,196. Voice frequency signalling; frequency modulation. DARJAVNO STOPANSKO OBEDINENIE PO RADIOELEKTRONNA I SAOBSTITELNA TECHNIKA. 30 Sept., 1965 [30 Sept., 1964], No. 41644/65. Headings H3R, H4K, and H4R. In a voice frequency signal receiver for signals which comprise voice frequency signals frequency modulating a voice frequency carrier, e.g. 200 cps frequency modulating a 2,200 cps carrier with a deviation of Œ 150 cps, the receiver is made voice and noise immune by providing a circuit tuned to the carrier frequency and using the output of this circuit, when rectified, to bias the modulating frequency detectors after the discriminator, so that the respective frequency components of the modulated signal are required to be in their correct ratios before the receiver responds. Fig. 3 shows an embodiment of a receiver in which the frequency modulated V.F. signals are selected by a band pass filter, comprising inductors 18 and capacitors 16, 17 and 19, and applied via a limiter amplifier 22 to a frequency discriminator 24 and a carrier selection circuit 25. Circuit 25, tuned to the voice frequency carrier, provides an enabling bias to transistor 30 so that, when the frequency modulated V.F. signal is present, signals from the discriminator 24 may pass via the transistor 30 to be detected by the circuit, or circuits, tuned to the modulating frequency, or frequencies, to be applied to the polarized relay 31, or, as described relative to Fig. 2 (not shown), which uses a plurality of tuned circuits, to a decoder. An alternative receiver having two input circuits and a limiter using zener diodes is described with respect to Fig. 4 (not shown). A transmitter for use with a system of this type comprises, Fig. 6, one or more modulation frequency generators F 1 , F 2 , - - F n , which are applied selectively via a cipher unit 42 to a transistor 42 which provides a variable reactance to frequency modulate the carrier frequency oscillator 48 the output from which is amplified and applied to the line.
Patent GB-1483205-A (GB)
Title: Band of synthetic plastics bags and a method and apparatus for manufacturing such a band
IPC: B31B27/00
Filed: 1974-09-25
Abstract: 1483205 Making strips of bags WAVIN BV 25 Sept 1974 [29 Sept 1973] 41783/74 Heading B5D [Also in Division B8]  A strip of plastics bags has lines of perforations to facilitate separation of the bags the perforations being closer together, or longer, at the edges of the strip than at a central portion 23. A machine for making the strip comprises a roll 1 of plastics material, driven rubber rollers 2, guide rolls 4, a perforator 5, see also Fig. 3, a rotatable drum 8 with heating bars 10 of copper coated with PTFE to form transverse seals, a cooling roll 18 and presser roll 13, and a printing machine 18a. A folding triangle 16 folds the strip which then passes to a winding device 17. The perforator has additional teeth 29 at its end-portions to provide more perforations in the edge portions of each bag, the teeth 27 being lower than the remaining teeth 25.
Patent GB-1489253-A (GB)
Title: Air cargo container
IPC: B65D6/00
Filed: 1974-10-10
Abstract: 1489253 Containers for air cargo FRUEHAUF CORP 10 Oct 1974 [11 March 1974] 41796/75 Divided out of 1489251 Heading B8P [Also in Division F2] The subject matter of this Specification has been disclosed in parent Specification 1,489,251 from which the present application has been divided but the claims are directed to the floor assembly.
Patent GB-1270895-A (GB)
Title: A cable sealing end
IPC: H01F38/36
Filed: 1970-09-04
Abstract: 1,270,895. Electric couplings. SIEMENS A.G. 4 Sept., 1970 [5 Sept., 1969], No. 42590/70. Heading H2E. [Also in Divisions G1 and H1] A cable sealing end Fig. 2, for at least one cable, having a body of electrically insulating material 40 has a voltage sensing arrangement which includes some of the insulating material as a dielectric, and comprises two electrodes 50, 51, the former connected to the conductor of the cable 43 via a clip 54 and socket contact 76 and the latter connected to a voltage measuring device located in the recess 53 by conductor 55. The metal binding 66 of the plastic insulated cable is earthed to metal sheathing 73 by segment 61 which is spread to grip the cable by the action of a ring spring 62 when the metal cover 60 is secured to the insulating body and sleeve 73. A flat upper conductor 29 extends from a cup shaped high voltage conductor retained in the insulating body by a split ring 47 and a mounting plate 71 is attached to a further metal sheath 67. A current sensing arrangement 56 comprising a control electrodes 37, 38 for a run-in and to facilitate the closing of the plug connection and reduce spark-over. The conductor 29 is in the form of a flat copper strip.
Patent GB-940159-A (GB)
Title: Method of and apparatus for producing a continuous tobacco rod or filler
IPC: A24C5/18
Filed: 1959-12-09
Abstract: The subject-matter of this Specification is largely identical with that of Specification 940,156, but there is also the disclosure, to which the claims are directed, of control of the trimming means in dependence on measurement of the thickness of the flow of tobacco trimmed from the stream.  Specification 940,158 also is referred to.
Patent GB-974307-A (GB)
Title: Stabilization of chlorohydrocarbon solvents
IPC: C23G5/028
Filed: 1961-11-29
Abstract: C1-3-chlorohydrocarbon solvents are stabilized by the inclusion of an aromatic nitro compound, suitably in amounts of 0.01-1% by weight of the solvent.  These solvents include methylene chloride, methyl chloroform, carbon tetrachloride, and particularly tri- and perchlorethylene. Many suitable nitro compounds are specified but 2: 4-dinitrotoluene is favoured.ALSO:Non-aqueous phosphatizing compositions comprise (a) phosphoric acid, and (b) a solubilizing agent for the phosphoric acid which is suitably an acid C3-8-alkyl phosphate or a C3-8-aliphatic alcohol, butyl or amyl alcohols being preferred, dispersed in (c) a C1-3-chlorohydrocarbon solvent such as methylene chloride, methyl chloroform, carbon tetrachloride, and particularly tri- and per-chlorethylene, which also contains as a stabilizer (d) an aromatic nitro compound. (a) and (b) generally comprise 0.05-7.5% and 1-10% by weight of the bath respectively, while (d) is usually present in amounts of 0.01-1.0% by weight of (c).  Many suitable aromatic nitro compounds (d) are specified but 2:4-dinitro-toluene is preferred.
Patent GB-1093128-A (GB)
Title: Improvements in or relating to load lifting and lowering units
Inventor: BOWSER GEORGE WILLIAM
IPC: B60P1/44
Filed: 1965-10-08
Abstract: 1,093,128. Elevating platforms. USI ENGINEERING Ltd. Aug. 23, 1966 [Oct. 8, 1965], No. 42791/65. Headings B8E and B8H. An elevating platform can be attached to frameworks of different sizes on vehicles, moulding presses or other machines by mounting the mechanism on a cross beam of adjustable length having upright depending boxsection members with slots providing guides for lugs attached to sliders running therein. The transverse beam has interfitting sections 1, 2 which can be engaged to give the desired length and can then be drilled and attached to a transverse member of the framework. A piston and cylinder 18, 19 mounted in the beam actuates a chain or cable system adjustably anchored at 27, 28 to the beam and passing over pulleys 7, 8, 24 (25) and 13 to provide depending sections 31, 32 for attachment to the sliders moving in the upright members 37, 38 which having lugs engaging with the guide slots 39.