baber/WOPTO huggingface dataset:
Patent GB-1106336-A (GB)
Title: A method of treating textile flock
Inventor: LANE FREDERICK HENRY
IPC: D04H11/00
Filed: 1965-11-27
Abstract: The length of oversize fibres in a fibre flock is reduced by adhering the fibres in the flock by their ends to a surface so that they project substantially at right angles from the surface, trimming the pile thus obtained to reduce the length of the oversize fibres, and separating the trimmed pile from the surface. As described polyacrylonitrile fibres are electrostatically deposited on a wet endless canvas belt with the oversize fibres being trimmed by a heated wire adjustably spaced from the belt. The trimmed fibres are removed from the belt by scraper blades.
Patent GB-1103543-A (GB)
Title: Improvements relating to the production of vulcanised rubber products and the like
Inventor: NEWNHAM JOHN LEATHEM MATTHEW
IPC: B29C33/02
Filed: 1963-12-21
Abstract: 1,103,543. Vulcanization of rubber articles in fluidized bed. DUNLOP RUBBER CO. Ltd. 19 Nov., 1964 [21 Dec., 1963], No. 50573/63. Addition to 864,117. Heading B5A. A vulcanizable (or cross-linkable) precursor of a rubber article contained in a mould is heatvulcanized by immersion in a bed of a fluidized solid, e.g. sand, glass ballotini, common salt or sodium pyrophosphate particles. Latex foam rubber mouldings may be immersed for two minutes at 190‹ C., held in the hot air above the bed for three minutes and then cooled. A succession of moulds may pass through the fluidized bed on a conveyer.
Patent GB-1065248-A (GB)
Title: Multichannel correlator system
IPC: G06G7/19
Filed: 1963-12-23
Abstract: 1,065,248. Transistor switching circuits. BOEING CO. Dec. 23, 1963 [Jan. 17, 1963], No. 50698/63. Heading H3T. [Also in Division G1] A sampling gate for use in computing correlation functions (see Division G1) comprises a diode bridge 100 which is switched from a non-conducting to a conducting state by application of push-pull signals to transistors T1, T2. When both transistors T1, T2 are cut-off, the diodes in bridge 100 are forward biased allowing an input S(t) to be fed to charge capacitor C. When transistors T1, T2 are conducting the bridge 100 is reverse biased disconnecting signal S(t) from capacitor C which remains changed to the value of S(t) last received.
Patent GB-1180908-A (GB)
Title: Improvements in or relating to processes for Forming an Insulating Coating on Silicon, and to Coated Silicon
Inventor: MCMILLAN PETER WILLIAM
IPC: H01L23/29
Filed: 1966-11-17
Abstract: 1,180,908. Ceramic seals. ENGLISH ELECTRIC CO. Ltd. 15 Nov., 1967 [17 Nov., 1966], No. 51549/66. Heading B3V. [Also in Divisions C1 and H1] A silicon body has an insulating coating of a glass-ceramic thermally matched to the silicon and comprising at least 90 % by weight of ZnO 24-53; A-l 2 O 3  9-20; SiO 2  27-45; one of B 2 O 3 . CaO and BaO 5-20, the oxides of the alkali metals, germanium and magnesium being absent. A number of examples of coatings are given. A complementary pair of metaloxide silicon transistors may be bonded together by the glass-ceramic coating. A preoxidized silicon body is coated with a suspension of the glass powder in methylated spirits with or without ammonia and heated in a non-oxidizing and non-reducing atmosphere such as argon to fuse the coating and devitrify the glass.
Patent GB-1495554-A (GB)
Title: Electrophotographic developers
IPC: G03G9/00
Filed: 1974-11-28
Abstract: 1495554 Coated magnetic particles SUBLISTATIC HOLDING SA 28 Nov 1974 [30 Nov 1973] 51641/74 Heading C1A [Also in Divisions B2 and G2] An electrophotographic developer comprises magnetic cores each covered with an organic substance which contains a dyestuff which vaporizes at a temperature between 100 and 220 C. at atmospheric pressure. The cores may be particles of iron or magnetic alloys, or oxides of cobalt, nickel or iron, with an average particle size of 0À5 to 10 microns. In the examples: core materials used are iron powder, magnetite and a mixture thereof; core coating materials used are polyvinyl acetate, polyamides and ethyl cellulose; and a number of known dyes, including mixtures of dyes, are used. Surfactants, and especially anti-static agents, may be mixed with the developer. The developer may be prepared by spray drying a dispersion of the magnetic cores and the dyestuff in a solution of the coating material, or by coating the cores and subsequently dyeing the coating.
Patent GB-1567818-A (GB)
Title: Clamping device for disc-shaped memory sheets
IPC: G11B17/032
Filed: 1977-12-13
Abstract: The floppy disks have a central hole in the middle. By means of this hole, the disk is first of all centred and then firmly clamped by a conical clamping part (16) and a pot-shaped clamping part (12). The conical clamping part can be driven in both directions of rotation. Depending on the direction of rotation, it thereby executes a forward or rearward axial movement, for example as a nut part on a spindle. One end position is the clamping position, the other the opening position. The axial movement is derived from the rotational movement via a torque limiter. A smaller space requirement than in the case of known devices is necessary and the disk is treated gently in an optimum way during centring and clamping. According to one embodiment, the axial travel is reduced by dividing the centring operation into a coarse centring and a fine centring. The coarse centring is performed by a flat centring piece arranged eccentrically on the end face of the part, the fine centring is performed by means of the cone of the part. This cone is very short in comparison with the first embodiment. The consequence is a smaller axial travel, a flatter part and a narrower friction shoulder, and consequently an appreciably narrower clamping device in the axial direction. <IMAGE>
Patent GB-1172050-A (GB)
Title: New alpha-[p-(Dimethylaminoalkoxy) Phenyl]-alpha'-Nitro-4-Methoxystilbene Compounds
IPC: C07C49/84
Filed: 1968-11-01
Abstract: 1,172,050. α - [f - (Dimethylaminoalkoxy)- phenyl] - α<SP>1</SP> - nitro - 4 - methoxystilbenes. PARKE, DAVIS & CO. 1 Nov., 1968 [3 Nov., 1967], No. 51868/68. Heading C2C. Novel stilbene derivatives of Formula I in which n is 3 or 4, and pharmaceuticallyacceptable acid-addition and quaternary ammonium salts thereof, are prepared by (a) reacting a compound of Formula II or III with nitric acid, or (b) reacting a compound of Formula III with a C 1-4  alkanoyl nitrate and heating the resulting 1-nitro-2-alkanoyloxyethane derivative of Formula IV with a strong acid, or (c) reacting a compound of Formula V with a dehydrogenating agent or (d) reacting a compound of Formula VI in which M is a salt-forming cation, with an amine of formula Hal-(CH 2 ) n -N(CH 3 ) 2  in which Hal is a halogen atom, or (e) reacting a compound of Formula VII with dimethylamine, and, if required converting a free base of Formula I into a pharmaceuticallyacceptable acid-addition or quaternary ammonium salt. The free bases and salts can exist as cis-trans isomers. Triarylethanol compounds of Formula II are prepared by reacting a benzophenone of Formula VIII with benzyl magnesium chloride and hydrolysing the product. Triarylethylene compounds of Formula III are prepared by dehydrating a compound of Formula II. Benzophenones of Formula VIII are prepared by reacting anisic acid with a compound of Formula IX in which Hal is halogen, and reacting the resulting 4-(haloalkoxy)-4<SP>1</SP>-methoxy-benzophenone of Formula X with dimethylamine. Triarylnitroethane compounds of Formula V are prepared by reacting 4-methoxy-α<SP>1</SP>-nitrostilbene with a compound of Formula XI α - (p - Hydroxyphenyl) - α<SP>1</SP> - nitro - 4 methoxystilbene is prepared by reacting benzyl magnesium chloride with 4-hydroxy-41-methoxybenzophenone to give 1 -(p -hydroxyphenyl) - 1 - (pmethoxyphenyl)-2-pehnylethanol, reacting this with acetic anhydride to give α-(p-acetoxyphenyl)-4-methoxystilbene, and treating this with sodium hydroxide. Triarylnitroethylene compounds of Formula VII are prepared by reacting a compound of Formula X with benzyl magnesium chloride and hydrolysing the reaction product to give a triarylethanol of Formula XII which is then reacted directly with fuming nitric acid or is first dehydrated and the dehydration product reacted with fuming nitric acid.
Patent GB-1190173-A (GB)
Title: Method of Forming a Phosphor Screen on a Substrate
IPC: B05B5/08
Filed: 1968-11-01
Abstract: 1,190,173. Cathode-ray tubes. HUGHES AIRCRAFT CO. 1 Nov., 1968 [3 Nov., 1967], No. 51886/68. Heading HID. A phosphor screen on a substrate, e.g. the luminescent coating of a cathode-ray tube screen-in particular for colour televisionis applied by a method generally similar to that disclosed and claimed in United Kingdom Specification 1,187,264, but in which the phosphor particles are dispersed in an electrically conductive fluid, which is subsequently broken up into a stream of electrically charged droplets before being scanned over the substrate, after which the suspending liquid is removed, e.g. by heat. The fluid may be outgassed 2-ethyl hexyl phthalate or glycerine, the phosphor material-typically in the form of 5 to 10 micron particles-constituting 10 to 20% by weight of the mixture. The mixture may be broken up into a stream of charged droplets by forcing it by a pump 20 through the stainless steel nozzle 4 of a syringe 8 which is held positive with respect to the apertured electrode 2. The stream may thereafter be scanned over a face-plate 10 by an electrostatic deflection system 12, or by bodily movement of the face-plate with respect to a stationary stream of droplets. Reference is made to the application of the method to colour television tubes having either a multiple gun assembly and a shadow mask electrode, or a colour selection and post deflection acceleration grid of parallel wires, as shown at 14.
Patent GB-1462897-A (GB)
Title: Fastening arrangement for a rotary motion driving device
IPC: G01P1/04
Filed: 1974-12-02
Abstract: 1462897 Coupling shafts KIENZLE APPARATE GmbH 2 Dec 1974 [3 Dec 1973] 52091/74 Heading F2U A driving shaft is coupled to the shaft 6 in, for example, a transmission gear housing 1 (used in the measuring of speed and distance in vehicles) by providing on the housing a fixed sleeve 3 provided with a detachable collar 10 for co-operating with a fastening nut 13. As shown, the shaft 6 is provided with a slot 8 for receiving a tongue of the driving shaft of the vehicle gear. The collar 10 is made in two halves which may be lap-jointed together. A spring clip 15 may be inserted to prevent removal of the assembly during transport. The outlet sleeve 4 may be connected to a flexible shaft or plug and socket of the transmission gear also contains an electromechanical transducer. In modifications, Fig. 4 and 5 (not shown), the internal collar 14 of the nut is replaced by a removable part (23) and a spring ring (25) respectively.
Patent GB-1509950-A (GB)
Title: Urea manufacture
IPC: C07C239/00
Filed: 1975-12-22
Abstract: 1509950 Urea synthesis MITSUI TOATSU CHEMICALS Inc 22 Dec 1975 [6 May 1975] 52330/75 Heading C2C Urea is synthesized from ammonia and carbon dioxide in a process wherein unreacted ammonium carbamate and water are subjected to a decomposition stage and the remaining aqueous urea solution is concentrated to obtain crystalline or molten urea, water vapour generated in the process being treated by (a) cooling and condensing water vapour generated in the concentration step to form a dilute aqueous ammonium carbamate solution, (b) rectifying this solution at leass than 25 kg./ cm.<SP>2</SP> (gauge), (c) introducing the gaseous mixture so obtained into the unreacted ammonium carbamate decomposition stage using a rectification under substantially the same pressure to remove water from the gaseous mixture, and (d) recovering ammonia and carbon dioxide from the ammonium carbamate decomposition stage.
Patent GB-1495090-A (GB)
Title: Method and apparatus for fabricating pneumatic rubber fenders
IPC: B29D22/02
Filed: 1975-12-22
Abstract: 1495090 Moulding rubber fenders YOKOHAMA RUBBER CO Ltd 22 Dec 1975 52340/75 Heading B5A In a process for fabricating a pneumatic rubber fender, a non-vulcanized fender body comprising a cylindrical portion closed at one end is formed on a rotary drum 1 having a closed end; the open end 41, Fig. 16E, of the body is turned back on to a cylinder 40 with a closed end and is clamped by means 43; air is fed through an opening 44 causing part of the body to peel from the drum after which the cylinder 40 is removed and the open end of the body turned back as shown in Fig. 16F. The body, as shown, is composed of several layers and an end plate 45 also composed of layers is then applied to the closed end of the drum, each layer being overlapped by a corresponding turned-up end of the body. The layers of the end plate are centrally apertured and include apertured inserts 46, 47, The fender body is removed from the drum by air fed through the central aperture, and the body is vulcanized in an inflated condition. The apparatus includes a device for feeding sheet material on to the cylindrical part of the drum, and means for pressing such material comprising a roller 5, Fig. 2, on a pivoted arm 9 on a carriage 6, 7 movable axially of the drum. Before the cylindrical part of the fender body is formed a number of layers of sheet material comprising the closed end plate of the body are applied and shaped to the drum end by a plate 31, Fig. 13, urged against the drum by a cylinder 35 whereupon a bag housed within the plate 31 is inflated to mould the sheets on to the drum end. The cylindrical part of the fender body is joined to the end plate of the body by arms 24, Fig. 9, arranged in a circle, joined by springs and pivoted at their ends on an axially movable disc 22; the free ends of the arms have rollers which engage the drum when a disc 25 is moved relative the disc 22. The first turning back of the free end of the cylindrical part of the fender body may be effected by an annular inflatable bladder mounted on a smaller diameter part of the rotary drum.
Patent GB-1510767-A (GB)
Title: Conveying installations
IPC: E21F13/00
Filed: 1976-12-20
Abstract: 1510767 Emergency stopping of conveyers SIEMENS AG 20 Dec 1976 [23 Dec 1975] 53170/76 Heading B8A An operative riding on a colliery conveyer 1 can stop the conveyer by manually interrupting the path of a laser beam 5. The latter is focused on to a control unit 4. The conveyer may be restarted by a predetermined number of quick interruptions of the beam. A visual indicator is provided on the unit 4 to indicate whether the unit is in the manually interrupted, or in the restarted mode.
Patent GB-1316918-A (GB)
Title: Optical pulse receivers
IPC: H04B10/158
Filed: 1971-11-17
Abstract: 1316918 Optical pulse receiver INTERNATIONAL BUSINESS MACHINES CORP 17 Nov 1971 [24 Nov 1970] 53416/71 Heading G1A The signal to noise ratio of a direct detecting optical pulse receiver is maximized by suitable selection of associated circuit components, the detector (having a capacitance C 1 ) being connected to a load resistance R 1 , and high pass and lowpass filters 12, 14 connected in cascade; the load resistance R 1  is chosen to substantially maximize the term:- where Io is the D. C. current of the detector, e' is the charge on the electron, k is Boltzmann's constant and T is the temperature of the detector; the filters 12, 14 are designed to have time constants # and y which are substantially equal and designed to maximize the relationship:- and A is the amplitude of the input optical current pulse, α is the time constant of the optical detector and <SP>t</SP>max is the time at which the peak signal output voltage occurs. A mathematical discussion deriving from the individual terms in (2), the expression<SP>1</SP> to be maximized, is provided, as are the steps taken in deciding on values of the various circuit parameters. Particular applications are optical communication, instrumentation and Roman stectroscopy, the detector being a semiconductor device e.g. a silicon photo-diode, in which case the capacitance C 1  is the junction capacitance which will have a minimum possible value of the order of 10-20 picofarads. This together with the load resistance R 1  form an imput low pass filter circuit. The imput pulses to the detector e.g. from a laser will normally be less than 100 nanoseconds, and for most cases <SP>t</SP>max will equal to. Some discussion of the necessary alterations to the calculations is made for cases where <SP>t</SP>max is less than t o . The other defining parameter is the D.C. current I o  which is preferably as small as possible >10<SP>-6</SP> ampÞres, and which is an important factor in the amount of quantum noise. The steps in the procedure include:- determination of R 1 , which specifies α, by maximizing R 1  / I  o e'R1 + 2kT i.e. R 1  as large as possible; determination (computer aided) of # α γ, which results in the two filters effectively producing a band pass filter with a plate frequency at # c#  = # cγ . The result is a detector with an overall transfer function equivalent to a conventional device but with a much larger value of R 1  being possible. Amplifier A 1 , A 2 , A 3  are provided of which the latter two may be omitted and A 1  should be a low-noise type.
Patent GB-1368080-A (GB)
Title: Polynuclear n-heterocyclic n,n -polyglycidyl compounds processes for their production and the use thereof
IPC: C08G59/26
Filed: 1971-11-17
Abstract: 1368080 Polynuclear N-heterocyclic N,N1- polyglycidyl compounds CIBA-GEIGY AG 17 Nov 1971 [17 Nov 1970] 53458/71 Heading C2C [Also in Division C3] New polynuclear polyglycidyl compounds of the formula where A 1  and A 2  each represent a bivalent aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, or heterocyclic-aliphatic radical; Z 1  and Z 2  each stand for a bivalent radical of the formula where R 1  and R 2  together form a bivalent aliphatic, or cycloaliphatic hydrocarbon radical, R 3  and R 5  each represent a hydrogen atom, or an aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radical, and R 4  and R 6  each stand for a hydrogen atom or an alkyl radical; X 1  and X 2  each represent a hydrogen atom or a methyl group; n is 1, 2, or 3; and B represents the radical obtained after splitting off the n + 1 hydroxyl groups of an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, or heterocyclic-aliphatic polyalcohol are prepared by the reaction at elevated temperature of 1 mole of a polyalcohol of formula with n + 1 moles of a epoxyisocyanate of formula
Patent GB-1163319-A (GB)
Title: Improvements in or relating to Flow Control Valves
Inventor: LONGWORTH ALFRED
IPC: F16K3/24
Filed: 1966-12-01
Abstract: 1,163,319. Valves. RADIATION Ltd. 29 Feb., 1968 [1 Dec., 1966], No. 53771/66. Heading F2V. A fluid flow control valve 1, comprises a central tubular member 12 which has formed therein ports 5 and 6 and a transverse partition 2 disposed between the ports, a heat-resistant plastics material sleeve 7 which surrounds the tubular member 12 and is adapted for purely rotational movement around it, the sleeve 7 being formed with flanges 9 which, through engagement with the tubular member 12, define a sealed annular chamber 8, and a sealing ring 13 whose plane is inclined to the valve longitudinal axis and which serves to split chamber 8 into two non-communicating chambers 8a and 8b. In the closed position of the valve, as shown, the sealing ring 13 prevents flow from taking place between ports 5 and 6, such flow being established, however, upon rotation of the sleeve through approximately 180 degrees whereupon both ports are located in chamber 8a. Sealing of the sleeve with respect to member 12 may be enhanced by the provision of a spring between each flange 9 and the sleeve (Fig. 2, not shown), and the sleeve itself may be strengthened by moulding a glass fibre tube (17, Fig. 2) into the sleeve, or by bonding to the sleeve a non-ferrous metal tube or heavy duty plastics tube (18, Figs. 2 and 6, not shown). The external surface of the sleeve may be formed with various types of hand grips (Figs. 3-5, not shown).
Patent GB-1311820-A (GB)
Title: Open-end-spinning machines
IPC: D01H4/24
Filed: 1971-11-19
Abstract: 1311820 Break spinners: stop motions LUWA AG 19 Nov 1971 [29 Jan 1971] 53932/71 Heading DID In a break spinner on yarn breakage as detected by a sensor 44 the air flow through openings 38 in the rotor 4 is reversed to purge the rotor of unspun fibres. This may be affected by air scoop blades 40, see also Fig. 3 (not shown), which can be orientated to encourage outflow of air during normal spinning or scooping in of air on thread breakage by pivoting about a horizontal pivot 70 when tipped by a switching ring 82. The angular position of the blades 40 about their vertical axes 62 may be preset to give the required air flowrate. In another embodiment, Fig. 5 (not shown) plugs (94) in the base of the rotor (90) with diagonal bores (96) are rotatable by an undisclosed mechanism to cause inflow or outflow of air. In a further embodiment, Fig. 6 (not shown), alternative inflow and outflow holes are provided, the relevant holes being covered and uncovered by a rotary shutter (106) which shutter is controlled by a centrifugal device 108 responsive to the speed of the rotor. The reverse air flow may alternatively be generated by running the rotor in reverse. When a thread break is detected in addition to the air flow to the rotor being reversed fibre feed is terminated and a valve 18 opens the rotor to a suction duct 16 and drive to the rotor is discontinued. The blades 40 also act as air brakes to slow the rotor. Fibres may be removed alternatively through the yarn delivery member 8 or the fibre duct 20.
Patent GB-1206620-A (GB)
Title: An improved process for preparing a liquid developer for electrostatic images
IPC: G03G9/12
Filed: 1967-11-28
Abstract: 1,206,620. Emulsion liquid developers. CANON CAMERA CO. Inc. Nov.28, 1967 [Nov.28, 1966; April 23, 1967], No.54080/67. Heading G2H. An emulsion liquid developer for electrostatic images comprising a carrier liquid and a developer phase liquid is prepared by adding a solvating agent which is soluble in both the carrier liquid and the developer liquid to at least one of them, and subsequently adding the developer phase liquid to the carrier liquid to disperse the developer phase therein. Specified developer materials are resin, copal, gilsonite, bitumen, pitch, pine tar, waxes e.g. carnauba wax, rubber gelatine, cullulose derivatives, vinyl resins, acrylic resins, styrene resins, alkyd resins, xylene formaldehyde resins, epoxy resins, urethane and amino resins, water, alcohols, esters, ketones, ethers, hydrocarbons, oleic, lionleic, isostearic and naphthenic acids, soy bean oil, linsead oil and tung oil. The carrier liquids are ligroin, naphtha, kerosene, n-pentane, n-heptane cyclohexane, dimethyl polysiloxane, diphenyl pentachloride, polybutene and chlorinated fluorinated hydrocarbons. Specified mutual solvents include materials similar to developer materials, hydrogenated rosin and rosin esters, asphalt products, silicone resins, caprioc, caprylic myristic and stearic acids. The mutual solvent may subsequently be volatilized. Pigments and dyes may be added to the developer phase liquid.