baber/WOPTO huggingface dataset:
Patent GB-1268293-A (GB)
Title: Improvements in or relating to carrier transmission systems for stereo audio signals
IPC: H04H20/88
Filed: 1970-06-19
Abstract: 1,268,293. Multiplex carrier system. SIEMENS A.G. 19 June, 1970 [20 June, 1969], No. 29767/70. Addition to 1,060,613. Headings H4L and H4R.  The transmission system disclosed in the parent Specification, in which two stereo audio channels are each included in the same primary group of channels of a frequency-division multiplex carrier telephone system as a suppressed carrier single sideband signal, one of said single sideband signals being transmitted with frequency inversion and the other without frequency inversion and the two frequency bands corresponding to said single sideband signals being situated symmetrically on opposite sides of the centre frequency of said primary group of channels, is modified by the addition of a phaseshifting four terminal device for compensating for phase errors, which is arranged in one of the audio channels at a point between the transmitting and receiving ends at which the said channel is in the primary group frequency range. The phase-shifter preferably is made adjustable and is arranged to make the group delay in the primary group frequency range symmetrical about the group centre frequency. This produces a symmetry in the phase characteristic so that it is not necessary to make the delay in the channels completely independent of frequency.
Patent GB-951436-A (GB)
Title: Solutions of polyesters in substituted phosphoric amides
IPC: C08J3/09
Filed: 1959-09-01
Abstract: A polyester is dissolved in a solvent of formula: <FORM:0951436/C3/1> The polyester may be (a) a linear polyester of a polymethylene glycol and a dicarboxylic acid, (b) such a linear polyester modified with a chain-terminator which is a monohydric polyalkylene glycol or a monohydric polyalkylvinyl ether or (c) a polyester as defined under (b) modified by a chain-branching agent which is a polyhydric alcohol or an ester of a benzene polycarboxylic acid (see Specification 847,090).  In the example the polyesters used are polyethylene terephthalates which may be modified with ethoxy polyethylene glycol or a mixture of methoxy-polyethylene glycol and pentaerythritol.  The solution, which may also contain plasticizers, pigments, dyes, anti-static agents or fire-retarding agents, are useful in the manufacture of fibres, films coating compositions and lacquers.
Patent GB-693777-A (GB)
Title: Improvements in metal spraying tools
Inventor: PLASTER HERBERT JOHN
IPC: B05B7/20
Filed: 1950-12-07
Abstract: 693,777. Spraying metal. METALLISATION, Ltd. Dec. 7, 1951 [Dec. 7, 1950], No. 29946/50. Class 69(iii) A metal spraying tool supplied separately with combustion gas, combustion supporting gas, and atomizing gas, through pipes 12, 13 and 14, includes three separate diaphragm valves controlling the supply of these gases to the tool nozzle. Each valve comprises a flexible diaphragm 18 which is forced against a seating 17 to cut off the gas supply from its supply pipe to an outlet 20. Each valve is closed by a slidable member 27 carrying an adjusting screw 25, which engages a plunger 24. The valves may be operated simultaneously by rotating a shaft 28 having flats 29 which engage the members 27. Alternatively, the valves may be operated separately by three such shafts.
Patent GB-1401204-A (GB)
Title: Variable function programmed calculator
IPC: G06F3/02
Filed: 1972-06-27
Abstract: 1401204 Calculator TEXAS INSTRUMENTS Inc 27 June 1972 [19 July 1971] 30068/72 Heading G4A A calculator is formed on a semi-conductor integrated circuit chip and includes addressable read-only program storage, control circuits responsive to program instructions to control operations in the calculator, a memory providing a number of data registers each storing data serially by character parallel by bit, arithmetic means coupled to the data registers and the control circuits, input means, e.g. a keyboard, and an output display. The calculator is formed on a metal-insulatorsemi-conductor integrated circuit and is desorbed in some detail. The output display may be light emitting diodes, liquid crystal devices, cold cathode discharge elements &c., and as described is formed of multisegment digit display elements. The digit display elements and the keyboard are scanned by common timing signals, see Specification 1,401,265. Instruction execution is generally conventional, an instruction address normally being incremented, there being provision for address modification for jump instructions, and for maintaining the same address on "wait" instructions. An exemplary program is given.
Patent GB-300014-A (GB)
Title: Improvements in operating mechanism for change speed gears
IPC: F16H59/04
Filed: 1927-11-10
Abstract: 300,014. Rowlands, P. O. Nov. 10, 1927. Controlling variable-speed gearing.-A control lever k is moved in the plane of Fig. 2 to select striker members h, h<1> of a change-speed gear, and is moved about its pivot shaft j in the plane of Fig. 1 to operate the selected striker. The selective movement is effected by turning a knob handle r, which is connected by a spindle l to a pinion n which rolls along a fixed rack o. This rolling causes the whole lever k with its pivot shaft j to move in the plane of Fig. 2 so that the heel k<1> of the lever crosses between the strikers h, h'. The lever k is guided in a gate f. The rack o is fixed against longitudinal movement but it is supported on an arm p so that it can move with lever k in the plane of Fig. 1 for the operative stroke. A spring lock s stops the knob r in gear positions.
Patent GB-859724-A (GB)
Title: Fabricated articles
Inventor: MASON ERNEST ARTHUR
IPC: C08J5/24
Filed: 1958-09-22
Abstract: A composition for use in making laminated articles (see Group VIII) comprises a mixture of a siloxane resin having a R/Si ratio of from 1,0 to 1,8 wherein R is e.g. a methyl, ethyl, vinyl, allyl or tolyl radical, and from 0,01 to 5% by weight of the siloxane of a complex of a metal carboxylate and an amine.  The complex, which may be formed in situ, may be made from the reactants in molar proportions of amine to metal salt of from 1:1 to 6:1 Metal salts specified are Ca, Co, Ce, didymium (i.e. Nd + Pr), Mn and Zn 2-ethylhexoates, pelargonates, stearates, naphthenates, resinates linoleates and oleates; amines specified are butyl-, amyl-, octyl-, cyclohexyl-, diethyl-, triethyl-, ethanol-, diethanol-, N-(2-aminoethyl)- ethanol- and isopropanolamines and morpholine.  The compositions are usually used as solutions in solvents e.g. toluene, xylene, acetone, methylethylketone, ethyl- and butyl acetates, methylene chloride, dichloro-ethane and dibutylether, with or without the addition of a little butanol or isopropanol.  In the examples a complex of zinc octoate and triethanolamine is used.
Patent GB-334741-A (GB)
Title: Improvements in and relating to the production of caffeine
IPC: C07D473/12
Filed: 1929-10-07
Abstract: 334,741. Potts, H. E., (Monsanto Chemical Works). Oct. 7, 1929. Caffeine is prepared from theobromine or its salts using methyl chloride as the methylating agent. When theobromine itself is treated, a basic substance is added to neutralize the liberated hydrochloric acid. The methylation may be effected in solution, e.g. in water or methyl alcohol, and at raised temperature and pressure. An example is given. The prior use of methyl iodide, dimethyl sulphate and p-toluene sulphomethyl ester as methylating agent is referred to.
Patent GB-205361-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F1/10
Filed: 1922-11-07
Abstract: 205,361. Dadson, H. H. Nov. 7, 1922. Tobacco pipes.- An inner bowl 3 fitting into the outer bowl 1 by means of a screw-thread 2 is provided with holes 4 beneath which is arranged a loose thimble or cup-like receptacle 5, which serves to prevent access of moisture to the inner bowl 3. According to the Provisional Specification, the receptacle 3 may form a part of either the inner or the outer bowl.
Patent GB-484987-A (GB)
Title: Improvements relating to mercury switches
IPC: H01H29/18
Filed: 1936-11-07
Abstract: 484,987. Mercury switches. CIANCHI, A. Nov. 7, 1936, No. 30390. Addition to 482,947. [Class 38 (v)] An electric switch comprises a vessel 1 enclosing mercury 8 wherein floats a plunger 4 carrying a magnetic armature 5 which is acted upon by a solenoid 6 to move it in an axial direction, the plunger being guided to move it clear of the wall of the vessel 1 at points spaced apart in its direction of movement. The lower end of the plunger is a cup containing mercury with an opening 9 in one wall through which mercury can pass when the plunger is depressed to complete the circuit between electrodes 2 and 3. The necks 10 and 11 in the plunger in conjunction with the upper electrode 2 form the guides. Modifications are described wherein one of the guides is a wire fixed to the plunger and passing through an eye fixed to the containing vessel or formed from the lower electrode, or where it is a spider attached to the lower end of the upper electrode co-operating with the inner surface of the plunger or the out-turned upper edge of the plunger co-operating with the inner surface of the containing vessel. A switch is also described wherein contact is made or broken merely by displacement of mercury by the plunger. Specification 351,830 is referred to.
Patent GB-229421-A (GB)
Title: Improvements in and relating to suit cases, attache cases and the like
IPC: A45C7/00
Filed: 1923-12-03
Abstract: 229,421. Gadsby, F. C. Dec. 3, 1923. Lids and covers; cases of variable capacity. - To enable the capacity of a suit, attache, or like case to be varied the hinge pivots and the lid are adapted to be moved into and secured in a variety of positions, similar adjustment being provided for the fastening devices on the opposite or front side of the case. The hinges 15, Fig 1, are mounted on inverted U-shaped bars 20 the notched arms of which slide within casings attached to the back of the case and are adapted to be engaged and held at the desired level by spring-pressed rods 24, provided with finger-pieces 25 to enable them to be retracted when necessary. The adjustment at the front of the case may be. effected by a pair of the fastenings shown in Fig. 4 wherein a spring-pressed bolt 41 is adapted to engage a notch 40 in a bar 39 pivoted to the front of the lid and slidable within a casing on the front of the case. A finger-piece 43 for retracting the bolt is provided, and a lock operated by a key may be associated with this fastening.
Patent GB-965029-A (GB)
Title: Process for the manufacture of polybutadiene
IPC: C08F136/06
Filed: 1962-08-08
Abstract: Lithium alkyl aluminium hydride of the formula LiAlH1- 7(C8H13)2- 3 is made b mixing 10 parts of lithium-aluminium-hydride with 60 parts of vinyl cyclohexane and 80 parts of isopropyl-benzene at 125 DEG C. with stirring.  The desired hydride is obtained by treating the cooled reaction mixture with toluene and filtering.ALSO:Polybutadiene is made by polymerizing 1,3-butadiene butadiene in the presence of an inert hydrocarbon diluent and a catalyst prepared by combining (a) a lithium-aluminiumtetra-alkyl and/or a lithium-aluminium-alkyl hydride, (b) TiCl4 or TiBr4 and (c) a C1 to C10 alkyl iodide, an aryl iodide and/or a cycloalkyl iodide, in the proportions such that for each molar proportion of component (b) there is present from 1 to 8 molar proportions of component (c) and from 2 to 20 molar proportions of component (a), and during the polymerization the TiCl4 or TiBr4 is present in an amount of from 0.015 to 1.5 parts by weight per 100 parts by weight of 1,3-butadiene. Component (a) of the catalyst may be LiAl(C4H9)4 or LiAl (n-C4H9) (iso-C4H9)3 or LiAl (n-C8H17) (C2H5)3, or LiAlH2 (CH2.CH2-C6H9)2, LiAlH (n-C8H17)3, or LiAlH2 (iso-C4H9)2.  Component (c) may be methyl, ethyl, n-butyl, n-hexyl, isopropyl, tert.-butyl, cyclohexyl, or benzyl iodide, or iodoform, 1-chloro -4- iodobutane, or 4-iodo-n-butyl-phenyl ether.  The polymers are recovered by conventional techniques using agents such as alcohols, water, acetone, and acids. In the course of recovery, stabilizers, antioxidants, buffers, and compounding ingredients may be incorporated in the polymer. The compounding ingredients mentioned are oils, alkyd resins, and phenol-formaldehyde condensates.  The polymerization may be effected continuously or batchwise, and the catalyst is preferably preformed.
Patent GB-304201-A (GB)
Abstract: 304,201. Hasler Akt.-Ges. vorm. Telegraphen- Werkstõtte von G. Hasler. Jan. 16, 1928, [Convention date]. Adding and subtracting apparatus.-Relates to franking- machines of the kind comprising a rotary printing-cylinder 2 carrying a value die 28 having a variable part consisting of numeral types 13 protruded through a slot 22 in the die and in which a counter is provided outside the cylinder for registering the total value of the impressions printed. A number of side-by-side rows of types 13 is provided each row being carried by a slide 16, Fig. 1, mounted on a bar 8 adapted to be raised about a pivot 7 into a position where a setting-handle 20 connected to the slide may be grasped and moved along a groove 21 to move the whole row of types and so bring the required type 13 above the slot. A lever 34 pivoted at 33 to each slide 16 has a pin 35 riding in an inclined slot 36 in the slide, so that when the slide is adjusted, the lever is rocked a corresponding amount. Each lever has a forked end 37 whereby it raises or lowers a slide 38, and all the slides 38 are arranged between guides 39, Fig. 8. A cam 40 is fixed to each slide 38 and also has a slotted end engaging a pin 41 so that each cam 40 is projected radially to an extent corresponding to the value of the type 13 in operative position. When the cylinder 2 rotates, each cam 40 acts on an arm 42 and rocks it about a pivot 43 against the action of a spring 44. The arm 42 has a pin-and-slot connection 51 with a rack 53, which is thereby reciprocated and, on its down stroke, engages pinions on totalizing counters 54, 55, one of which may print on a check slip. The arms 42 are positively returned to normal positions by a bar 45 on a bell-crank 47 engaging a cam 49 on the cylinder 2. The rack 53 is moved sideways out of mesh with the pinions by means of rollers 67 on arms 62, 63 connected by a rod 61 and adapted to be rocked about pivots 64, 65 by a bell crank 59 engaging a cam 63 on the cylinder 2; as the rack is disengaged, a tooth 68 on each arm 62 locks a counter wheel against further rotation. Before the next advance of the counters, the transfer mechanism comes into operation. Transfer mechanism. - Each of the wheels carries a cam disc 76, Fig. 6, adapted when the wheel passes zero to engage the end of a lever 73 on which is pivoted a pawl 70 bearing against the top of the rack 53 corresponding to the adjacent wheel of higher denomination. The pawl is thereby moved to the right into the path of the end of a lever 77 which is continually rocked about a pivot 78 by a cam 82 on the printing-cylinder, and, at its next movement depresses the rack far enough to advance the counter wheel one tooth. The cams 82 are arranged to operate in succession.
Patent GB-335391-A (GB)
Title: Improved manufacture of glycidic acids
IPC: C07D303/48
Filed: 1929-10-08
Abstract: 335,391. Kaufmann, A. A. Oct. 8, 1929. Glycidic acids are obtained by the oxidation of a. #-unsaturated aldehydes in alkaline medium by hypo-halites or by hydrogen peroxide. In examples, (1) cinnamic aldehyde is added with stirring to an alkaline solution of sodium hypobromide, crystals of the sodium salt of phenylglycidic acid separating; (2) a solution of annamic aldehyde in alcohol is mixed with hydrogen peroxide and alkali, the sodium salt of phenylglycidic acid separating; (3) crotonic aldehyde is added to an alkaline solution of sodium hypobromite, the solution is neutralized with a mineral acid and methylglycidic acid is extracted with ether.
Patent GB-826760-A (GB)
Title: Improvements in or relating to high frequency wave energy coupling devices
Inventor: GIBNEY FREDERICK GEORGE
IPC: G01S7/03
Filed: 1956-10-08
Abstract: 826,760. Waveguide switches. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 16, 1957 [Oct. 8, 1966], No. 30605/56. Class 40(8). A coupling device comprises two high-frequency energy channels relatively movable through a position which they adopt once per cycle of movement, in which their ends are aligned opposite one another, and a metallic shutter on at least one of said channels operated by abutment means to open up the end of the channel when the said position is approached. In radar equipment, Fig. 1, a sample of the transmitted energy to be fed to an echo box enters the resonant aperture 3 in the aerial 1 and passes to a short length of waveguide 6 which has an open end 61, on a table 7 which rotates with the aerial system. The guide 6 carries two abutment pins 62, 63, and as it rotates passes with its end 61 close to the end of a guide 8; said end having a shutter 82 thereon. An abutment pin 91 projects from the box 9 when a solenoid therein is energized and pin 63 engages pin 91, and swings aside box 9 and shutter 82 so that guides 6 and 8 are coupled once per revolution of guide 6. The end of guide 8 is kept open by the pin 85, which is forced during the opening into the bend 861 in a spring 86, until the guides have passed the position of alignment when the pin 62 releases the spring 86. In a modification, Fig. 4 (not shown), a cam 862 on the table 7 engages the pin 91 and controls the shutter movement. The coupling device may be located in the pedestal box of the radar equipment.
Patent GB-758729-A (GB)
Title: Improvements in and relating to electrical control circuits
Inventor: LUDBROOK LESLIE CARTER
IPC: G05B11/01
Filed: 1953-11-05
Abstract: 758,729. Rectifying. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 25, 1954 [Nov. 5, 1953], No. 30667/53. Class 38 (2). The D.C. through an inductive load LF supplied from A.C. source S is controlled by a rectifier-switch combination V in parallel with the load, a capacitor C being connected in the supply. The rectifier-switch combination may be any rectifying arrangement wherein the flow of current may be initiated by a signal at a chosen instant during the conducting half-cycle. It may comprise a valve V, the control signal being applied to grid G, or a dry-plate rectifier having in series a transductor, Fig. 5 (not shown). When the signal, which may be the error signal of a control system, is such as to allow a D.C. component in the load LF, which may be a generator field coil, the capacitor C is charged when the rectifier conducts so that in the halfcycle when the rectifier is non-conducting the voltage applied to the load is the sum of the capacitor and supply voltages. The voltage across the load is initially large and falls as the current builds up. This arrangement gives an increased rate of response of output current to changes in the applied signal. Where the load current may be required to flow both ways two rectifier-switch combinations may be connected in reverse-parallel. The supply circuit may include inductance L and resistance R.
Patent GB-877561-A (GB)
Title: Regenerated cellulose structures such as tubes
IPC: B29C53/36
Filed: 1957-10-01
Abstract: 877,561. Seaming non-metallic sheet materials. TEE-PAK Inc. Oct. 1, 1957 [Oct. 15, 1956], No. 30717/57. Class 42 (1). [Also in Group XXVIII] In a method of producing a cellulosic structure, e.g. a tube, from a sheet or web comprising fibrous cellulosic material, such as paper, sisal, ramie, flax, bagasse, or cotton, having regenerated cellulose on both sides thereof, an edge of one sheet or web is treated with a solvent to provide thereon an adhesive comprising cellulose and that edge is contacted with an edge of that or another sheet or web to cause the adhesive to bond the edges together, the solvent being an aqueous zinc chloride solution, an aqueous solution containing calcium thiocyanate and calcium chloride, an aqueous solution of cupriethylene diamine, sulphuric acid or syrupy phosphoric acid. Specifications 764,455 and 877,563 are referred to.
Patent GB-850276-A (GB)
Title: Improvements in show cards
IPC: G09F1/06
Filed: 1956-10-09
Abstract: 850,276. Signs. FORDS ADVERTISING Ltd., FARROW, W. C., and SHEPHERD, L. C. May 7, 1957 [Oct. 9, 1956], No. 30773/56. Class 3(2) A showcard comprises a display portion 1 and a hinged attachment portion 2 coated with a pressure contact adhesive 3 which is covered by a protective sheet 4 prior to use. Masking strips 5 provide uncoated edges to facilitate removal of the sheet 4. In order to maintain a fixed angle between the two limbs a partially cut out semi-circular portion 6 is provided which is cut all round except at c which forms a hinge. A notch 7 engages a corner of the aperture when the portion 6 is folded down. In a modification the attachment portion 2 is divided into two or more sections which can be bent in alternate directions. In a further modification the masking strips 5 are omitted.
Patent GB-392834-A (GB)
Title: Improvements in or relating to filler feed mechanism for cigar making machines
IPC: A24C1/02
Filed: 1932-11-01
Abstract: 392,834. Cigar - making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) Nov. 1, 1932, No. 30792. [Class 130.] Filler tobacco is fed into a measuring-chamber against the predetermined resistance of a yielding wall which interrupts the feeding operation after the required charge density has been attained. The charge being severed, and the chamber turned and lowered into a bunchforming device. A reservoir T with rotary vanes 11 forwards the tobacco below starred and spaced rollers 17. The charge enters the chamber 41 against the resistance of a counterweight 43 and a spring-pressed piston 42 which carries a finger 45, until, through the linkwork 47, 49, 50 the cam 54 releases a pawl 56 holding the ratchet wheel 57 ; transmission through an epicyclic train is thus varied and the tobacco feed stopped, but a roller 116 is moved round which eventually engages the end 109 of a lever carrying the pawl 56 and resets the mechanism for resumption of the feeding operation. As feeding stops, a cam 59 through a bell crank 96 actuates the knife 58 and through a lever 63 draws down a slide to which the measuring chamber is pivoted. Simultaneously, slotted levers attached to the pivots engage fixed pins causing the chambers to assume a vertical position. The mouths of the chambers may be closed by a slide 70 side-pins on which are engaged by projections on the knife support 46. As the charged chamber enters the bight in a Chianti belt 67, fixed projections 100 tilt the slides 70 from closing position, and as the chamber rises again the spring on the piston rod 44 ejects the tobacco charge. Pivoted levers 102 spring-pressed against the forming roller 69 of the Chianti belt assist in shaping the filler. In a modification, a single grooved feeding roller, reciprocating axially, is used at the outlet of the reservoir T.
Patent GB-520586-A (GB)
Title: Improvements in, or relating to, soaking pit and like furnaces
IPC: C21D9/70
Filed: 1938-10-26
Abstract: 520,586. Soaking-pit and like furnaces. SALEM ENGINEERING CO., Ltd., and HALDEN, J. W. Oct. 26, 1938, No. 30917. [Class 51 (ii)] The gases from one or more soaking-pit furnaces b are led to a preheating furnace f and dampers are provided for reversing the flow of gases through the preheating furnace. Gases from the furnaces b pass through damper-controlled flues a to a main flue c, which is provided with branches d' leading to each end of the preheating furnace and communicating therewith by damper-controlled inlets g. Dampers h, h<SP>1</SP> are provided at each end of the preheating furnace to reverse the course of the gases therethrough on their way to a stack e.