baber/WOPTO huggingface dataset:
Patent GB-1122959-A (GB)
Title: Improvements in and relating to relaxation pulse generators
Inventor: MENICOU GEORGE
IPC: H03K3/282
Filed: 1966-11-07
Abstract: 1,122,959. Transistor pulse generating circults. STANDARD TELEPHONES & CABLES Ltd. 7 Nov., 1966, No. 49722/66. Heading H3T. In a relaxation pulse generator, comprising first and second transistor amplifiers cross coupled by first and second coupling circuits at least one of which uses a resistance-capacitance relaxation network, at least one of the transistor amplifiers is formed by a Darlington pair Q 1 , Q 2  or Q 3 , Q 4  and a decoupling means is provided to decouple the or each of R.C. coupling circuits from the output of the transistor amplifier driving the coupling circuit, when the said transistor amplifier is non- conductive. In the free-running multivibrator shown the decoupling means are formed by diodes D 1 , D 2  which prevent the capacitors C 1 , C 2  from charging via the load resistors R 1 , R 6  when the associated transistors Q 1 , Q 2  and Q 3 , Q 4  are non-conducting. In a monostable pulse generator (Fig. 2, not shown), the Darling- ton connected transistors Q 3 , Q 4  may be replaced by a single transistor.
Patent GB-1069818-A (GB)
Title: Process for the purification of crude aqueous malic acid liquors
IPC: B01J41/04
Filed: 1965-11-24
Abstract: Crude aqueous malic acid liquor is purified from saturated organic acid impurities by contacting with a basic anion exchange resin of a basicity to selectively adsorb the acid impurities. The liquor which may be that remaining from the crystallization of fumaric acid from the reaction mixture obtained by treatment of maleic acid may be treated preferably with a polystyrene resin containing aminomethyl substituents.  Other resins such as cation-exchange resins and porous activated carbon adsorbent may also be used in further purification stages.
Patent GB-1214822-A (GB)
Title: Improvements in or relating to mineral-mining cutter tools
Inventor: DAVIES RAYMOND
IPC: E21C35/18
Filed: 1967-11-03
Abstract: 1,214,822. Mineral-mining picks. COAL INDUSTRY (PATENTS) Ltd. 1 Nov., 1968 [3 Nov., 1967], No. 50042/67. Heading E1F. A slot and tongue connection 5, 6 in the form of a dovetail joint is provided between a cutter tip 4 of a mineral-mining cutter tool and the body 3 of the tool. The connection 5, 6 locates and holds the tip in a recess in the body for subsequent locking of the tip to the body by a pin 7 being entered into then aligned bores in the tip and the body. The connection 5, 6 can be parallel to or transverse of the medial plane of the tool in the direction of movement of the tool.
Patent GB-1174540-A (GB)
Title: Collapsible Steering Shaft Coupling for a Motor Vehicle
IPC: B62D1/19
Filed: 1968-10-22
Abstract: 1,174,540. Collapsible steering shafts. FORD MOTOR CO. Ltd. 22 Oct., 1968 [16 Nov., 1967], No. 50087/68. Heading B7H. [Also in Division F2] A steering shaft 24 connecting the steering wheel 26 and steering box 28 in a motor vehicle comprises upper and lower shaft parts 30, 32 formed with respective U-shaped ends 34, 40 providing side-by-side legs 36, 38 and 42, 44 which interlock in overlapping relation and are arranged to disengage upon application of a rearward thrust to the lower part 32 so that displacement of the upper part 30 and a surrounding fixed column 18 into the passenger compartment in a frontal collision is avoided. A plastics or rubber block having four longitudinal ribs is interposed between the legs 36, 38, 42, 44, and a resilient snap ring 48 seats in notches 50, 52, 54, 56 in the legs. A reaction ring 58 welded to the upper part 30 prevents rearward movement of the upper part relative to the column 18.
Patent GB-1178650-A (GB)
Title: Improvements in Variable Geometry Axial Flow Compressors
IPC: F01D17/16
Filed: 1968-10-02
Abstract: 1,178,650. Axial-flow compressors. GENERAL ELECTRIC CO. Oct.22, 1968 [Nov.1, 1967], No.50129/68. Heading F1C. An axial-flow compressor comprises a stator blade adjusting mechanism including a reciprocable actuator which is connected at one end to the casing for movement of its opposite end in a plane generally normal to the rotor axis, and an axially extending shaft having a number of radially extending lever arms, one of which is connected to the movable end of the actuator while the others are connected by linkage each to a row of pivotable stator blades. The blades of each row of adjustable stator blades are connected by levers 24 to an actuating ring 22, each ring 22 being connected by a link 30 to a lever 32 projecting from a shaft 28 which is journelled in spherical self-aligning bearings in brackets 34. The shaft 28 is rotated by means of an actuator 38 having its cylinder pivotally attached to a bracket 42 and its piston rod 40 connected to a lever 36 projecting from the shaft 28. The links 30 are preferably in the form of turnbuckles. Ball and socket joints are preferably used at each end of each link 30 and at each end of the actuator 38.
Patent GB-1209615-A (GB)
Title: A compressor installation for pumping combustible fluids
Inventor: NIELSEN RICHARD HEDEGARD
IPC: F04B49/10
Filed: 1967-11-08
Abstract: 1,209,615. 615. Compressor installations. COMPRESSORS AUTOMATION CONTROLS Inc. Nov. 8, 1967, No.50733/67. Heading F1N In the event of a fire hazard occurring in a compressor installation pumping combustible fluids, a temperature detector or an explosion level monitor initiates automatic closure of the compressor suction and discharge valves and the opening of a blowdown valve which vents the compressor of combustible fluids. The discharge, suction and blowdown valves are operated by high-pressure fluid controlled by respective valves themselves controlled by a low-pressure fluid in a circuit which is vented to atmosphere if a hazardous condition is detected. The circuit is arranged to cause the suction valve to close and the blowdown valve to open before the discharge valve is closed.
Patent GB-1141461-A (GB)
Title: An improvement in or relating to flame-cutting and welding
IPC: F23D14/52
Filed: 1964-12-18
Abstract: 1,141,461. Burner nozzle. MAN GEE WANG. 7 March, 1966 [18 Dec., 1964; 18 June, 1965], Nos. 51564/64 and 25888/65. Heading F4T. [Also in Division B3] A method of flamecutting or welding using oxygen and a hydrocarbon gas comprises preheating the gaseous fuel mixture during its passage though one or more ducts in a nozzle body, the body being of copper covered with an outer layer which reduces dissipation of heat from said body, said layer being at least 0À025 inch thick. A nozzle for carrying out the method comprises a non-ferrous metal e.g. copper, body 10 provided in its tapered bore 16 with an insert 14 having longitudinal passages 18 and peripherally spaced grooves 20, the outer surface of body 10 being coated with a nickel or chromium rich alloy, or a ceramic or cermet material to reduce heat losses from said body portion. A mixture of oxygen and hydrocarbon fuel gas e.g. propane, propylene, passing through the passages 18 and grooves 20 is therefore pre-heated in the nozzle before burning to a temperature below its flash point, e.g. 250‹ C. The nickel rich alloy may contain alloying elements of iron, silicon, chromium, boron and carbon. The coatings are sprayed on the body by a gaseous flame jet. The outlet end of the nozzle is provided with a secondary insert 22 to form a pre-heating chamber 24, this insert having an axial bore 26 and four inclined holes 28 to provide a convergent gas stream emerging from the nozzle. Modifications may include passages 18 and further passages in place of grooves 20 drilled through a solid body part or the insert 14 being provided with one or more spiral grooves in place of grooves 20.
Patent GB-1198587-A (GB)
Title: Number and Symbol Display System.
IPC: G06F3/147
Filed: 1968-11-01
Abstract: 1,198,587. Digital displays. SONY CORP. 1 Nov., 1968 [2 Nov., 1967], No. 51892/68. Heading G4H. A system for displaying a number and a symbol (such as " - ") includes a multi-stage register 1 some stages of which contain the digits of the number and others contain insignificant zeros, the contents of the digit positions appearing in sequence at an output, a zero detector 3 controlling through a circuit determining the highest significant digit, a symbol generator 6 and a redundancy code generator 5 adapted to enter the symbol in a position next (or next but one) above the position containing the highest significant digit and filling with a special redundancy code the remaining positions above the highest significant position, a display device 2 having positions capable of displaying a symbol or any of digits 0-9 receiving the sequential output of the register and operative to display the digits and symbol in the correct position and to make no display for positions containing a redundancy code. The zero detector gives outputs M 1  indicating that a zero has been detected and M 1  indicating that a zero has not been detected. A decimal point circuit gives a signal M 2  if the decimal point has arrived and M 2  if it has not arrived. In the first circulation of the contents of the register, the signal T 1  is present. Signal T 2  is present in the second circulation. Gates A 1 - A 3  pass pulses via an Or gate to counter 4 which has a counting scale of seven, this being the number of stages in the register. The counter counts from 0 to 0 in seven steps. In the first recirculation, gate A 1  passes a pulse to the counter for each zero above the decimal point. In the second circulation gate A 2  passes a pulse for each digit, including zeros, below the decimal point. In the second part of the second circulation, the gate A 3  passes a pulse for each non-zero digit above the decimal point. All the positions are therefore counted in turn, the seventh being the highest significant digit, since non-zero digits above the decimal point are the last to be counted. This occurs when the counter 4 reverts to zero. A signal then passes to the symbol generator 6 to insert a symbol (e.g. " - ") in the position next to the highestvalued digit, or next-but-one to it. And generator 5 fills the remaining spaces with. special codes which are ignored by the display device and result in blank positions.
Patent GB-1205748-A (GB)
Title: Thickened aqueous liquids
Inventor: CLARKE MICHAEL RAYMOND
IPC: C08F291/00
Filed: 1966-11-21
Abstract: 1,205,748. Aqueous liquids containing an amide copolymer. M. R. CLARKE, E. J. FREWEN, and I. H. McEWAN. 5 Dec., 1967 [21 Nov., 1966], No. 52026/66. Headings C3G and C3P. A thickened aqueous liquid with a shear thinning ratio of not greater than 4 contains a soluble thickener comprising a non-ionic copolymer of from 80-95% by weight of an alpha, beta-ethylenically unsaturated watersoluble carboxylic acid amide copolymerized by dispersion polymerization with from 5-20% of an alpha, beta-ethylenically unsaturated comonomer. The non-ionic copolymer is prepared by polymerization in an inert organic liquid containing a stabilizer for the disperse polymer particles comprising an anchoring compound which becomes associated with the particles and a pendent chain-like component which is solvated by the organic liquid and provides a stabilizing sheath round the said particles. The copolymer recovered from the dispersion is dissolved in the aqueous liquid, i.e. water or water together with up to 50% of a water-soluble organic liquid. Said aqueous liquid may be the continuous phase of an aqueous latex. In the examples copolymers of acrylamide with (1) 2 - ethoxyethyl methacrylate, (4) 2 - hydroxypropyl methacrylate, (5) acrylic acid, (6) di - n - butyl maleate, (7) diethyl itaconate, or (8) acrylic acid and styrene are prepared in dispersion in ethanol in the presence of a preformed 2 - hydroxyethyl methacrylate/methyl methacrylate/polyethylene glycol acrylate stabilizer. An acrylamide/styrene copolymer is prepared in Example 2 in dispersion concurrently with the in situ preparation of an acrylamide/styrene/polyethylene glycolacrylate stabilizer. Similarly, in Example 3 in acrylamide/ methyl acrylate copolymer is prepared concurrently with an acrylamide/methyl acrylate/ polyethylene glycol acrylate stabilizer. The copolymers produced are dissolved in water or water/propylene glycol mixtures. In Example 9, a latex paint is prepared comprising a methyl methacrylate/2-ethylhexyl acrylate copolymer latex, the copolymer thickener produced in Example 1 and a mill base containing TiO 2 , propylene glycol and a poly(ethylene oxide)/ coconut fatty acids tertiary amine salt of hexametaphosphoric acid.
Patent GB-1235229-A (GB)
Title: Fifth wheel couplings
Inventor: WALTHER WILLIAM DEAN
IPC: B62D53/12
Filed: 1969-10-24
Abstract: 1,235,229. Fifth wheel couplings. DAYTON STEEL FOUNDRY CO. 24 Oct., 1969 [15 Jan., 1969], No. 52253/69. Addition to 1,216,697. Heading B7T. A fifth wheel coupling assembly comprises a flanged, forked plate 11 pivotally mounted on supports 15, a king pin being adapted to be locked within the fork 24 by a pair of jaws 25L, 25R pivoted at 28 and retained by a sliding block 40, there being arranged to extend across the inner end of the slot a bar 60 connected with a torsionally resilient rubber bushing 65 so that as the kingpin is coupled a force acts thereon to absorb the impact shock and then subsequently to resist oscillatory motion between the coupled vehicles. The bar 60 is connected to an outer ring 71 of the bushing which is bonded to a rubber core 72 and this in turn bonded to a metallic plug 66 bolted to the plate 11. The jaws are pivoted to their uncoupled position by a lever 36 which withdraws the block 40 allowing the jaws to pivot away from each other under the action of a spring 29. A pivoted latch bar 50 biased by a spring 56 retains the block 40 in its withdrawn position.
Patent GB-1272456-A (GB)
Title: Improvements in or relating to dental treatment assemblies
IPC: A61G15/14
Filed: 1969-10-24
Abstract: 1,272,456. Dental stands. SIEMENS A.G. 24 Oct., 1969 [26 Oct., 1968], No. 52331/69. Heading A5R. A dental treatment assembly comprises a vertically adjustable chair 1 mounted on a base 6 and supporting on one side a dental unit housing 10 with a support arm 12 mounted on the upper surface 11 thereof, which support arm is pivotable about a vertical axis 15 and carries at its free end a dental appliance unit, and a spittoon unit also mounted on the upper surface 11. The support arm 12 is also pivotable about a horizontal axis 16 and a counterbalanced parallelogram arm 39 supporting a tray 24 is provided as described in specification 1,272,455. The spittoon unit comprises a bowl 26, tumbler 27 and a filling tap 28. On the end of the unit nearest the head of the chair a strong-suction nozzle 31 and saliva extractor 32 are mounted in supports in a housing 33. Operating push buttons 30 are also provided at this end for the tap 28 and operation of a syringe 22 at the free end of the support arm 12. The housing 10 is movable longitudinally of the chair as described in specification 1,272,457.
Patent GB-1285982-A (GB)
Title: Circuit arrangement for error detection
Inventor: WAHL SIEGFRIED
IPC: G06K5/00
Filed: 1969-10-24
Abstract: 1285982 Card punch checker KOMBINAT ZENTRONIK VEB 24 Oct 1969 52357/69 Heading G4H In the event of a multiple punching error, the potential divider formed by W0 and punch digit lines W10, W9 ... triggers a threshold circuit S to energize a relay RF which initiates recording of an error indication on the card being punched. RF holds over rfIII and RZ is energized over rfI to break the punch command circuit (rzI) and change over contact rzIII which prepares a circuit for energizing the error punch (12) and lights a lamp La built into an error key TF. Skip instructions are passed to terminal 3 of the punch SE as each new field of the card is reached, under control of a program unit P and relay R4. RX is energized when column 80 is reached to change over rxII so that a punch command and an energizing signal for the 12 punch are supplied to the punch SE via D11, D12. If a manual error is recognized or an error decision is made by the arithmetic unit of the associated accounting machine B, the error cycle can be initiated by key TF.
Patent GB-1117760-A (GB)
Title: Improvements in or relating to ultrasonic welding of a ductile metal to a hard material
IPC: B23K20/10
Filed: 1965-12-13
Abstract: <PICT:1117760/C1/1> An apparatus for ultrasonically welding a ductile metal to a hand material comprises a rotatable sonotrode and an anvil for co-operating with the sonotrode, the anvil having its contact surface covered with a layer of resilient material and the contact surface being moved at the same speed and in the same direction as the contact surface of the sonotrode. The hard material may be a metal such as molybdenum or tungsten or a non-metal such as glass or other vitreous or ceramic material, the ductile metal may be aluminium or copper and the resilient material may be rubber, cellulose, nylon or a ductile metal.  In an embodiment a nickel transducer 1, Fig. 1, energized at 20 KC per sec. is connected to a cylindrical steel transmission member 5 in turn connected to a steel exponential transformer 6 carrying a steel welding disc 7 and the assembly is rotated by a motor driving through a toothed rim.  An aluminium foil 13 is sandwiched between the disc 7 and a 1 mm. glass plate 14, the latter bearing on a cylindrical steel anvil 10 rotatably driven by the motor and surrounded by a rubber layer 12.  A seam weld is thus formed between the foil and the glass plate.  It is stated that an aluminium foil may be welded to a glass plate of 2.5 mm. thickness without employing the resilient material.  An aluminium foil may be welded to a 1 mm. molybdenum plate without resilient material being employed but to a 0.25 mm. molybdenum plate with resilient material.  The resilient material may be aluminium foil or rubber, the latter being employed in welding aluminium foil to a tungsten plate and copper foil to a glass plate.
Patent GB-1353899-A (GB)
Title: Dyeing process
IPC: D06P3/66
Filed: 1970-11-09
Abstract: 1353899 Dyeing cellulose with reactive dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Oct 1971 [9 Nov 1970 29 Dec 1970] 53121/70 and 61604/70 Heading D1B Cellulose in tightly woven or densely packed form is dyed by treating the material at a pH of 6-7 in an aqueous medium containing the reactive dye and an electrolyte at a temperature above 100‹C for a period sufficient to penetrate the material and obtain the exhaustion required the dye being fixed by treating with an acid binding agent, the dyes used are reactive dyes which are stable to hydrolysis in neutral to acid solutions at 100-140‹C, most reactive dyes other than those having a dichloro-S-triazine group being suitable. The cellulose is in forms which are difficult to dye in a level manner e.g. cheeses, cones, copes, beams, torpedoes, ribbons, tapes, and packed warps.
Patent GB-1116967-A (GB)
Title: Catalytic reductive alkylation process
IPC: B01J23/70
Filed: 1965-12-15
Abstract: N-alkyl substituted amines are made by reductive alkylation in the presence of a nickel catalyst promoted by free sulphur on a sulphur containing compound.  The reductive alkylation may comprise reaction of an amine, nitro, or nitroso compound with an aldehyde or ketene in the presence of hydrogen.  Examples describe (1) preparation of N-4-methyl-2-pentyl-N1-phenyl -p-phenylenediamine from p-aminodiphenylamine and methyl isobutyl ketone, (2) preparation of N-sec-butyl N1-phenyl-p-phenylenediamine from p-amino or p-nitro-diphenylamine and methyl ethyl ketone, (3) preparation of N-2 octyl-N1-phenyl-p-phenylenediamine from p-amino diphenylamine and 2-octanone, (4) preparation of N-4-methyl-2-butylaniline from aniline and methyl isobutyl ketone and (5) preparation of N-isopropyl-N1-phenyl p-phenylenediamine from p-aminodiphenylamine and acetone.
Patent GB-1454088-A (GB)
Title: Electro-erosion machineing
IPC: B23H1/02
Filed: 1973-11-16
Abstract: 1454088 Automatic control of electroerosion INDUSTRIELLE ELEKTRONIK AG 16 Nov 1973 [16 Nov 1972] 53459/73 Headings G3N and G3R An electro-erosion process is controlled by forming signals representing two different variables, each dependent on process operating parameters. The signals are used to determine adjustments made in operating conditions such that the first variable is brought towards a maximum or minimum value, and the second variable is maintained within a predetermined range of values. As shown, the width of an electro-erosion gap 3 is measured by a detector 6 and regulated by varying the electrode drive 11 in accordance with an error signal produced by a comparator 7 receiving signals from the detector 6 and from a reference circuit 8. An evaluator circuit 300 receives the error signal on a line 301 and also receives on line 302 an indication of the electrode position from a sensor 9. From these inputs, the evaluator 300 forms a first variable equal to the square of the regulation error signal integrated over successive predetermined periods. A second variable, the breakdown potential of the gap defined by the ratio of the error signal to the electrode spacing, is also formed in the evaluator 300, and signals representing the two variables are fed on lines 303, 304 to a decision circuit 400. In this circuit, changes in the values of the input signals are detected, and instructions are issued to a control circuit 200 as a result of the changes detected and in accordance with numerical program control which determines that the first variable is to be driven to a minimum value and that the second variable is to be held in a preset range. The program may also determine a sequence in which various operating conditions of the process are to be varied. In response to instructions from the circuit 400, the control circuit 200 is able to make stepwise adjustments in the flowrate of dielectric fluid on line 201, the interpulse interval on line 202, the pulse current amplitude on line 203, and the amplitude of periodic electrode back-off on line 204. The resulting changes in the variables evaluated in circuit 300 determine subsequent commands issued by decision circuit 400 to optimize the process. Other variables calculated from different process parameters may be used in place of those defined above.
Patent GB-1508530-A (GB)
Title: Apparatus for foaming and applying a cleaning agent by movement of the apparatus over material to be treated
IPC: A47L11/32
Filed: 1976-12-23
Abstract: The device has a handle (13) which is connected to a housing (11). The latter has two lateral projections (14) which contain the bearings for a foam-producing cylinder (15). Arranged in the housing (11) is a supply container (12) for a liquid cleaning agent to be foamed. The supply container (12) is displaceable along the handle (13) and can be raised by actuating an angle lever (23) arranged on the grip (24) of the handle. A valve on the supply container (12) is thus opened so that the cleaning liquid can flow onto the foam-producing cylinder (15). The device has few single parts which are mostly made of plastic. Consequently, it can be manufactured and assembled at low cost. <IMAGE>