baber/WOPTO huggingface dataset:
Patent GB-1024652-A (GB)
Title: Organo-aluminium compounds
IPC: C07F5/06
Filed: 1962-11-12
Abstract: The invention comprises organo-aluminium compounds of formula R2AlOM (where R = alkyl, aralkyl or cycloalkyl M = alkali metal, e.g. Na or K).  They are made by heating a mixture of an alkyl aluminium hydride and an alkali metal hydroxide, preferably at 100 DEG  to 180 DEG  C. One embodiment has a dialkyl aluminium hydride dissolved in 1-3 times its volume of an inert organic solvent, e.g. toluene or xylene, together with 10 to 100% excess of caustic soda, the mixture being maintained at the boiling point of the solvent until hydrogen evolution ceases.  The dialkyl aluminium hydride may be formed by the action of the heated reaction medium on a trialkyl aluminium compound.  These organo-aluminium compounds may be used as activators in the preparation of alkyl aluminium compounds by the reaction of metallic aluminium and hydrogen with olefinic hydrocarbons containing one double bond.  In Example 1, a dry toluene solution of bis-(2-methyl-pentyl) aluminium hydride and sodium hydroxide is boiled under reflux under argon for 16 hours and after cooling the solution is filtered to yield the sodium-aluminium compound NaOAl(C6H13)2.  In Example 2, tris-(2-methyl pentyl) aluminium is prepared by the reaction of 99.5% pure Al and hydrogen with 2-methylpent-1-ene in toluene solution in the presence of tris-(2-methyl-pentyl) aluminium (as initiator) and NaOAl(C6H13)2 in an autoclave.
Patent GB-1181209-A (GB)
Title: Improvements in or relating to the Separation of Gas Mixtures
IPC: C10L5/02
Filed: 1968-09-06
Abstract: 1,181,209. Separating oxygen and nitrogen. BERGWERKSVERBAND G.m.b.H. 6 Sept., 1968 [12 June, 1968], No. 42637/68. Addition to 1166518. Heading B1L. The process of separating oxygen and nitrogen mixtures, suitably air, into fractions enriched in oxygen and nitrogen according to Specification 1166518 is improved by replacing the oxidised or unoxidised coal used therein by an oxidised coke produced by oxidising coal particles of size below 0.04 mm. to an oxygen content of 3-25% by weight, suitably in a fluidised bed, mixing the oxidised particles so produced with 15-30% by weight of a binder such as pitch, sulphite lye, bentonite or molasses to form shaped articles of particle size 2-10 mm., and then thermally treating the particles obtained at a rate of 1-100‹C., preferably 5-10‹C., per minute to a temperature of 500-1200‹C., preferably 900‹C. The oxidised coke obtained is suitably comminuted to a particle size of 0.1-4 mm. before use.
Patent GB-1001014-A (GB)
Title: Copolymer compositions
IPC: C08F214/06
Filed: 1963-10-30
Abstract: A vinyl chloride-ethylene copolymer containing from 9 to 22 weight per cent of chemically combined ethylene, and having an inherent viscosity at 25 DEG  C. from 0.9 to 2.0 when dissolved in cyclohexanone at a concentration of 0.1 gram per 100 ml., is made by copolymerizing ethylene and vinyl chloride at a temperature between -25 DEG  C. and 10 DEG  C., and at a pressure between 2000 and 30,000 p.s.i. in the presence of a catalyst which is the reaction product of an organoborane and O2, or a peroxide, in proportions equivalent to an atomic ratio of elemental boron to elemental oxygen, of from 0.25 : 1 to 15 : 1.  The mole ratio of ethylene to vinyl chloride in the copolymerizable mix is from 1 : 1 to 4.5 : 1.  The copolymerization catalyst is preferably prepared in an inert liquid solvent which is an ether, ester, ketone, or a hydrocarbon.  The organoborane compound of which may are specified may be a tri-(C2 to C7 alkyl) borane, a tricycloalkyl, or a triaryl, or a triaralkyl, or a trialkylaryl borane, an organoboron hydride, diborane, tetraborane, pentaborane, hexaborane, or decaborane.  The copolymerization may be effected in bulk, solution, emulsion, or in an aqueous or aqueous alcohol suspending medium.  The Specification contains a long list of suitable peroxides.  The tensile strength of the copolymer can be increased by hot-stretching at a temperature in the range of from 100 DEG  to 275 DEG  F.  The stretching can be uni- or biaxial.
Patent GB-1061092-A (GB)
Title: Improvements in and relating to temperature measuring apparatus
Inventor: HARDY DONALD
IPC: G01K1/02
Filed: 1962-11-13
Abstract: 1,061,092. Measuring temperature electrically. J. LYONS & CO. Ltd. Nov. 7, 1963 [Nov. 13, 1962], No.42833/62. Heading G1N. The temperature of a moving article in a conveyer type oven is measured continuously by inserting into it a probe (10) Fig. 1 (not shown) containing a thermistor whose change in resistance varies the frequency of a multivibrator (13) which modulates (at 14) a carrier wave from an oscillator (12). These components constitute a transmitting unit which is contained in a glass tube encased in a vacuum flask. The flask is further surrounded by fibre-glass and solid carbon dioxide; and the unit travels along with the moving object. The signals transmitted by an aerial (15) to an aerial (30) of a receiver, Fig. 2 (not shown) are demodulated to give a square wave, which is improved in shape (34) and then differentiated (35). The positive pulses from the differentiator are used to drive a square wave generator (37), the output mark space ratio of which is consequently unity, the area of the individual square waves being a function of the multivibrator frequency. The square wave is integrated and provides an indicator (40) or recorder (41) with a signal representative of the temperature being measured.
Patent GB-1088720-A (GB)
Title: Process for the manufacture of phenylchlorosilanes
Inventor: RATHOUSKY JIRI
IPC: C07F7/16
Filed: 1965-10-11
Abstract: Phenylchlorosilanes are prepared from chlorobenzene and silicon with a copper catalyst at 400 DEG  to 600 DEG  C. in a contact reactor, a mixture of 40 to 80 mole per cent of chlorobenzene, 2 to 25 mole per cent of hydrogen and 10 to 55 mole per cent of hydrogen chloride, being injected at from 0.5 to 10 kg. mixture per hour per kg. of contact substance comprising a copper catalyst and silicon.  The addition of hydrogen and hydrogen chloride suppresses the formation of benzene, diphenyl and hydrocarbon decomposition products.  The products comprise mixtures of phenyltrichlorosilane and diphenyl-dichlorosilane with inorganic chlorosilanes.  The preferred contact substance is an alloy of silicon and copper.
Patent GB-1026777-A (GB)
Title: Polymers
IPC: C08G65/16
Filed: 1962-11-14
Abstract: Solid thermoplastic oxymethylene polymers of 10x/1x melt index ratio from 25 to 90 are prepared by copolymerizing trioxane with a sufficient quantity of a comonomer containing at least two oxygen containing groups, each capable of providing an oxyalkylene group for cross-linking.  Specified comonomers are polyepoxides and diformals. 2,2-(trimethylene)-bis-1,3 - dioxolane, monocrotylidene trimethylol-ethane monoepoxide, glutaraldehyde, terephthaldehyde and acrolein dimer.  A third comonomer which is a cyclic ether, e.g. ethylene oxide and dioxolane may also be present. Preferred catalysts are boron fluoride and its complexes with a compound in which oxygen or sulphur is the donor atom.  Small amounts of a chain transfer agent, e.g. methylol may also be present.
Patent GB-993039-A (GB)
Title: Aircraft power plant
Inventor: LOVESEY ALFRED CYRIL
IPC: B64D31/02
Filed: 1962-11-14
Abstract: 993,039. Gas turbine engines. ROLLSROYCE Ltd. Nov. 7, 1963 [Nov. 14, 1962], No. 43149/62. Heading F1G. [Also in Division G3] An aircraft comprises a power plant adapted to effect forward propulsion of an aircraft, a pressure responsive member having oppositelydisposed pressure surfaces which are respectively adapted to be subjected to ambient pressure and to ram pressure, there being control means controlled by the pressure responsive member which are arranged to adjust the power produced by the or each engine so as to maintain the forward speed of descent of an aircraft at a selected substantially constant value. The invention is described with reference to a power plant comprising two gas turbine engines, the power of the engines being controlled by controlling the amount of fuel flowing to the combustion equipments. The apparatus shown in Fig. 1 comprises a fuel control unit 10 having a control lever 11 which is connected by links 13, 15 and lever 14 to a pilot's lever 12, the lever 14 being pivotally mounted at 16 on a rod 17 secured to a piston 18 so that the position of the pivot point 16 is dependent on the position of the piston 18. Fuel is admitted to the chamber 20 at the right hand side of the piston by way of an inlet 27, and fuel may pass therefrom through a duct 24, which is controlled by a half ball valve 25 carried by a lever 26, to the chamber 21 at the left hand side of the piston 18. The lever 26 is pivotally mounted at 29<SP>1</SP> and the lower end of the lever is operatively connected to a diaphragm 31. The chamber 29 to the right of the diaphragm is connected to the ram pressure P 1  and the chamber 32 to the left of the diaphragm to ambient pressure P 0 . Should the ram pressure P 1  increase during descent of the aircraft as a result of increase in speed, the diaphragm 31 will act to move the lever 26 clockwise about its pivot 29<SP>1</SP> whereby the half ball valve 25 will close the duct 24 whereupon the pressure at the right hand face 23 of the piston will increase with respect to that at the left hand face, the piston 18 and so the pivot point 16 will move to the left and the lever 11 will also move to the left so reducing the fuel supply to, and hence the thrust produced by, the engine. The opposite result will be produced if the aircraft speed should decrease.
Patent GB-1089615-A (GB)
Title: Improvements in or relating to nitrofuran pyrazolo-pyrimidine compounds
IPC: C07D487/04
Filed: 1964-10-22
Abstract: Novel compounds of Formula I <FORM:1089615/C2/1> wherein R represents a hydroxy group or a halogen atom, or an amino group of formula -NHY, where X and Y are halogen or hydroxyethyl, and R1 represents an alkyl or methoxyethyl group, are prepared by nitrating the corresponding furan pyrazolo-pyrimidine compound.  The amino compounds of Formula I may also be prepared by treating the corresponding halo derivative with hexamethylene-tetramine or an amine.  The halo compounds of Formula I may be prepared by treating the corresponding hydroxy compounds with a halogenating agent.ALSO:Disinfectant and chemotherapeutic compositions which have anti-bacterial activity and which may be formulated, e.g. as dusts, suspensions, ointments, tablets or injections, comprise as active ingredient a compound of formula I (I) <FORM:1089615/A5-A6/1> wherein R represents a hydroxy group, a halogen atom or an amino group of formula -NXY, where X and Y are hydrogen or hydroxyethyl, and R1 is an alkyl or methoxyethyl group.
Patent GB-1482704-A (GB)
Title: Imaging member
IPC: G03G16/00
Filed: 1974-10-07
Abstract: 1482704 Electro-photographic members XEROX CORP 7 Oct 1974 [11 Oct 1973] 43400/74 Heading G2F A member for producing reversible frost images comprises (i) a photo-conductive layer, (ii) an insulating elastomeric layer with a resistivity greater than 10<SP>13</SP> ohm cm, or these two layers being combined as a single layer and (iii) a flexible metallic layer of Cr and Ag applied together and/or sequentially to build up a multilayer. Normally the member has a conductive support to which the photo-conductive layer is applied and a field is applied between the support and metallic layer whilst imagewise exposing to produce the reversible image. The elastomer is preferably a silicone resin and the photo-conductor may be Se, S, Te, ZnO, CdS, CdSe or polyvinylcarbazole. There may be a screen between support and photo-conductive layer to produce line images or a protective oil layer may be applied over the metallic layer. Reflectivity of the metallic layer may be improved by adding gold and/or indium. Alternatively, there may be three elastomeric layers decreasing in thickness from the photo-conductive layer to the metallic layer to increase the response of the member. The reversible process is described in U.S.A. Specifications 3716359 and 1352157-9.
Patent GB-1372127-A (GB)
Title: High-speed data processing system
IPC: H04L17/00
Filed: 1972-09-20
Abstract: 1372127 Control of printers GENERAL ELECTRIC CO 20 Sept 1972 [24 Sept 19711 43499/72 Heading G4H A printer 6 receives data at different rates in accordance with the nature of the data available from a source 1. The source may be a C.R.T. display 3, Fig. 1 (not shown), a tape reader or a computer store, and can supply data more quickly than it can be printed. The data 10 is fed, together with a strobe signal 11, in parallel-. bit serial-character form to the printer 6 and to a sensor 12 comprising NOR and NAND gates (arranged (Fig. 4, not shown) to test characters in ASC11 code) which determines whether each character is printable or non-printable (space, delete, &c.) and sends a signal 13 or 17 to a monostable 14 or 18 respectively. Monostables 14, 18 provide signals 15, 25 of 25 or 33 m.sec. and 8 m.sec. duration respectively to a NAND gate 16 which in turn sends a signal 19 to source 1 to inhibit the output of a fresh character for the duration of signal 15 or 25. Other non- printable functions (line-feed, vertical tab, &c.) are also necessary, and require a variable delay which may be longer than the character printing time, e.g. 8-350 m.sec. for line feed. In this case, printer 6 sends a "line feed receipt" signal 20 to set a flip-flop 23, the output 24 therefrom causing gate 16 to send the inhibit signal 19 to source 1 as before; this signal is removed as soon as the line feed has been executed (following the printing of all previously received printable characters), when a "line feed complete" signal 21 resets 23 to remove signal 24.
Patent GB-1392834-A (GB)
Title: Portable demonstration board assembly
IPC: A47B97/08
Filed: 1972-09-20
Abstract: 1392834 Easels W E LUDWIG 20 Sept 1972 [25 Sept 1971] 43505/72 Heading A4H [Also in Division B6] A portable demonstration board comprises a board-plate 10 formed of articulated strips 101 so that it can be rolled up, an upper bearing rail 20 having sockets 16, 17, 18 receiving legs formed of detachable sections 11a, 12a, 13a, and clips 21 mounted on rail 20 and suspending the board plate 10 and demonstration sheets 24 by apertures therein. Each clip 21 comprises a fixed lower part 211 and an upper part 212 that can be moved longitudinally against the bias of a helical or leafspring 23 and swung to position 212' to open the clip. The strips 101 are connected by flexible bands 19 and may comprise sheet steel. Plate 10 may include a lattice pattern, and auxiliary boards, e.g. of plastics, cloth-covered, or a projection screen, and a clamping strip 25 may be mounted on clips 21. A rail 15 extending along the lower edge of plate 10 and adapted to receive e.g. pencils is releasably clamped to legs 11, 12.
Patent GB-1494992-A (GB)
Title: Spark erosion
IPC: B23H1/02
Filed: 1974-12-17
Abstract: 1494992 Spark erosion AGEMASPARK HOLDINGS Ltd 17 Dec 1974 [17 Sept 1973] 43518/73 Heading B3V [Also in Division G3] One or more operating parameters of a spark erosion apparatus are adjusted when the radio frequency radiation of the spark is below a certain level until the radiation is above the certain level indicative of satisfactory machining. The detected radiation may be filtered and the level detected may be indicated visually or audibly. The operating parameters may be adjusted automatically or by an operator when the radiation below the certain level has been indicated. Operating parameters referred to comprise pulse current, on and off duration of the pulses, rate of feed of the electrode and cyclic and/or vibrational movement of the electrode.
Patent GB-1373095-A (GB)
Title: Self-adjusting mechanisms especially for taking up wear
IPC: F16D13/75
Filed: 1971-12-13
Abstract: 1373095 Clutch control TELEFLEX Ltd 13 Dec 1971 [11 Sept 1970] 43617/70 Heading F2L An automatic slack-adjuster for a clutch release linkage comprises a nut 12 which transmits axial thrust between input and output rods 18, 20 and has two sets of teeth 13A, 13B cooperating with teeth 19, 25 on a fixed casing 15 and a non-rotary collar 24 which is urged by a spring 26 towards the nut 12. During leftward axial movement of the nut 12 interaction between the teeth 13A, 19 rotates the nut 12 relative to the rod 20 to take up slack whilst the teeth 13B ratchet over the teeth 25. The nut 12 is rotated one tooth pitch for each complete stroke of the nut 12 until the rotary movement of the nut 12 produced during leftward axial movement of the latter is insufficient for the teeth 13A to ratchet over the teeth 25. In Fig. 2 (not shown) the rod assembly transmits axial force in tension and comprises a nut (43) in threaded engagement with an input sleeve (40) and connected to an output flexible cable (45). The nut (43) has two sets of teeth (43A, 43B) cooperating with teeth (44, 47) on an axially fixed sleeve (46) and a spring-pressed non-rotatable collar (48). Interaction between the teeth (43A, 44) rotates the nut (43) relative to the cylinder (40) to take up slack whilst the teeth (43B) ratchet over the teeth (47) on the collar (48).
Patent GB-1196840-A (GB)
Title: Improvements in or relating to V-Belt Pulleys.
IPC: F16H55/56
Filed: 1968-09-13
Abstract: 1,196,840. Expanding pulley gears. ERNST HEINKEL A.G. 13 Sept., 1968 [22 Sept., 1967], No. 43676/68. Heading F2D. To reduce belt wear and also increase the ratio regulating range in an expanding V-belt pulley gear, the pulley flange faces are each formed as two differing inner and outer cone zones 4, 3 of radii and angles r 1 , α 1  and r 2 , α 2  respectively, the latter, i.e. outer core having the larger core angle (α 2 ), relative to a plane normal to the pulley axis, to correspond to the V-belt cross-section which at high peripheral speeds is only lightly tensioned and hence is not deformed, i.e. retains its normal cross-sectional shape, whilst the inner core has the lesser angle α 1  corresponding to a cross-sectional shape of the belt deformed due to the high tensional loading when running on the small diameter inner zone 4.
Patent GB-1105813-A (GB)
Title: Improvements in or relating to apparatus for converting digital signals for use with analogue control devices
Inventor: DIEDERICH PIERRE
IPC: G05D7/06
Filed: 1965-10-14
Abstract: 1,105,813. Digital control apparatus. G.E.C. COMPUTERS & AUTOMATION Ltd. 11 Oct., 1966 [14 Oct., 1965], No. 43697/65. Heading G4H. Apparatus in which digital signals are arranged to control an analog control device comprises a store in which the digital signal is stored, means for periodically changing the value in the store by a predetermined amount in a direction towards a datum value and means for producing, in conjunction which each change, an output signal of predetermined duration. The store 15 is the core store of a computer 14. A three-bit signal is entered to represent the step that the output device is to make and another bit indicates the direction. The value stored is counted down to zero and at each change in the value stored, a pulse generator 16 sends a pulse via an address matrix 17 and either the forward or backward switch 12 or 13, to a motor 10 which makes a step of 1/100th of a revolution in the desired direction. This controls a valve 1 via pressure relief valve 6. The device controlled may be a potentiometer, an autotransformer or similar apparatus.
Patent GB-1366566-A (GB)
Title: Ejectors for jettisoning loads from aircraft
IPC: B64D1/04
Filed: 1972-09-21
Abstract: 1366566 Ejectors FRANCE ARMED FORCES-MINISTER OF 21 Sept 1972 [18 Oct 1971] 43700/72 Heading F3C An ejector for jettisoning a load suspended beneath the fuselage of an aircraft has a pair of thrust members for engaging the load at two longitudinally-spaced points along its upper surface, the thrust members being movable, by a piston and cylinder unit, between an upper retracted position and a lower operative position a linkage being provided to constrain the thrust members to move by different amounts so that the load can be positioned at a desired angle to the fuselage prior to being jettisoned. In an embodiment an ejector 1, Fig. 1, has hooks 5, 6 which engage rings 2, 3 respectively, the latter being secured to a part 4 of the load. The hooks 5, 6 are pivoted on pins 7, 8 respectively, have a cam extension 9 or 10, and are interconnected by a rod 11 and pivot pins 12, 13. Pivotal movement is prevented by a catch 14. A cylinder 15 is pivoted to a fixed pin 16 and contains a piston 17 which is pivotally connected to the hook 5 by a pin 18. Pressurized gas is supplied to the cylinder 15 by pyrotechnical pulse generators 19 which also serve to release the catch 14. When an electric signal is received by the generators 19 the catch 14 is released and the hooks 5, 6 are rotated in the direction shown by the arrows. The hooks are released from the rings 2, 3 and the cam extensions 9, 10 thrust against the part 4 of the load to move it to the position shown in dash and dot lines in Fig. 1. In another embodiment thrust pistons 23, 24, Fig. 2, are mounted in slideways 21, 22 and are connected to a "floating" cylinder 34 and its piston 36 by links 25, 26 and levers 27, 28. In another embodiment an ejector as balls and socket fastenings which replace the hooks and rings method of connecting the load to the ejector, and is provided with springs which return the ejector pistons after the load has been released.
Patent GB-1329007-A (GB)
Title: System of and a method for transporting heavy or bulky  articles
IPC: B65G17/12
Filed: 1970-09-14
Abstract: 1329007 Endless conveyers H NIELSEN & SON MASKINFABRIK AS 14 Sept 1970 [17 Sept 1969] 43835/70 Headings B8A and B8Q Endless conveyers, for the transport of containers, each comprise a plurality of resilient load supporting pads 4 with teeth or projections 5, mounted on support members 3 secured to an endless chain 1. The support members 3 carry members7 which form bearings for outer carrying rollers 8 which engage a support surface 10. In a further embodiment, Fig. 5 (not shown), the support members (3) are secured to an endless chain (13) and have channel members (16) engaging rollers (8a) attached to chains (14), (15) and running on rails (10), thereby transferring the weight of the load direct to the rails (10).