baber/WOPTO huggingface dataset:
Patent GB-1038028-A (GB)
Title: Process for producing artificial fibres
IPC: D01F6/18
Filed: 1963-10-18
Abstract: A spinning dope I containing a polymer A consisting of acrylonitrile, acrylate and/or methacrylate and a monomer containing sulphonic acid groups, and a spinning dope II containing a mixture of polymer A and a polymer B consisting of acrylonitrile, or of acrylonitrile, acrylate and/or methacrylate and a monomer containing sulphonic acid groups, are simultaneously extruded into a congulating bath to form conjugate filaments. Polymer A satisfies the equations 6.0<XA+YA<11.0 and 0.5\sE=YA<1.0 where XA is wt. per cent of acrylate and/or methacrylate in polymer A and YA is wt per cent of sulphonic monomer; polymer B satisfies the equations <FORM:1038028/C3/1> where XA is wt. per cent of acrylate and/or methacrylate in polymer B and YB is wt. per cent of sulphonic monomer; and the mixed polymer of dope II satisfies the equations <FORM:1038028/C3/2> where m  is the proportion of polymer B in the mixed polymer of dope II. Concentrated aqueous nitric acid which is substantially free from nitrous acid is preferred as the solvent for the polymers.  The acrylate and/or methacrylate component may be esters of methyl, ethyl, propyl and butyl alcohols.  The monomer containing sulphonic acid groups may be methallyl sulphonic acid, a -methyl vinyl sulphonic acid, p-styrene sulphonic acid, a -sodium sulphoacrylonitrile, allyl sulphonic acid or 3-sodium sulphopropyl acrylate.  In examples, dope II consists of (1) a 60-40 mixture of a 91.5% acrylonitrile-8.0% methyl acrylate-0.5% methallyl sulphonic acid copolymer (polymer A) and polyacrylonitrile (polymer B); (2) a 40-60 mixture of the above polymers; (3) a 60-40 mixture of a 89.5% acrylonitrile-9.8% methyl acrylate-0.7% methallyl sulphonic acid copolymer (polymer A) and a 95.8% acrylonitrile-4.6% methyl acrylate-0.3% methallyl sulphonic acid copolymer (polymer B); (4) a 60-40 mixture of 93% acrylonitrile-6.4% methyl acrylate-0.6% p-styrene sulphonic acid copolymer (polymer A) and a 98.5% acrylonitrile-1.2% methyl acrylate-0.3% methallyl sulphonic acid copolymer (polymer B).ALSO:Conjugate acrylic fibres having a latent helical crimp are made by extruding through one orifice, two spinning dopes of specified constitution into a coagulating bath.  A helical crimp of at least 3 crimps per 10 mm. of extended length is developed by heat-treating the fibres, which may also be mechanically crimped. In an Example, a tow of fibres spun from two dopes consisting of (1) a copolymer of acrylonitrile, methylacrylate and methalkyl sulphonic acid (polymer A) and (2) a mixture of polymer A and polyacrylonitrile, are treated, after drying, with steam at 120 DEG C. to develop the crimps and are then mechanically crimped.
Patent GB-1080343-A (GB)
Title: Electrochemical device
IPC: G01N27/49
Filed: 1964-10-09
Abstract: 1,080,343. Electro-chemical cells. L.C. CLARK. Oct. 9, 1964 [Oct. 11, 1963], No. 41354/64. Heading G1N. A polarographic cell for measuring the concentration of oxygen or sulphur dioxide in the absence of oxygen, or for detecting hydrogen non- quantitatively, comprises two platinum electrodes sealed in glass and joined by an electrolyte containing a substance capable of depolarizing the anode at a relatively low voltage, the cathode, being depolarized by the constituent being measured which diffuses through a selectively permeable membrane 40, Fig. or (54), Fig. 4 (not shown), of polyethylene, rubber, P.V.C., or a silicone oil between two permeable membranes. According to Fig. 1 (not shown) the exposed surfaces of the electrodes are flush with one end of a glass or plastics support member in which they are sealed. As shown in Fig. 3, the exposed surfaces 36, 37, 39 of the electrodes 31, 33, 34 are away from the pointed end of the probe and measurements may be taken representing concentrations at several points at one time. The diameter of the probe may be 0À005 inch or less. The electrolyte 37, Fig. 3 or (57), Fig. 4 may be a capillary film of a solution of KCl, NaCl, KBr, NaI, the chloride, bromide or iodide of rubidium, lithium or ammonium, or sodium phosphate and the depolarizing agent may be a surfactant, a cationic or anionic detergent, a reducing agent, ascorbic acid (Vitamin C), iso-ascorbic acid, sodium ascorbate, carbamyl hydrazine; iodide, ferrocyanide or thiocyanate compounds; aniline, sulfadiazine, procaine, Adrenalin, hydroquinone, cysteine, 3, 4 dihydroxyphenol compounds, gluta thione, or certain specified sulfa drugs or phenothiazines. When used for detecting hydrogen, one electrode may be gold plated, the cell producing an e. m.f. in the presence of hydrogen. The electrical circuit (not shown) for use with the cell may contain thermistors to counteract effects due to temperature changes. Examples of potentials are given. The cell is suitable for use with corrosive liquids, and may be used to analyze constituents of gas, liquid or a solid.
Patent GB-1059628-A (GB)
Title: Process for the manufacture of optically active compounds
IPC: C07C69/38
Filed: 1963-10-21
Abstract: The enantiomorphs of 2-methyl-2-benzyloxymalonic acid monoalkyl esters are obtained from crude racemic monoesters by either (a) converting to ester-halide, purifying this by fractional distillation, hydrolysing with 0.1-1 mol. pyridine in a water/inert organic solvent mixture which dissolves both ester-halide and monoester-pyridine salt and resolving the purified monoester in conventional manner with e.g. cinchonidine or yohimbine; or (b) direct resolution using anhydropilosine.
Patent GB-888322-A (GB)
Title: Improvements in and relating to apparatus for playing a game
Inventor: KEMPNER JOHN DOUGLAS
IPC: A63F7/02
Filed: 1959-12-07
Abstract: 888,322. Indoor games. KAY (SPORTS & GAMES)]Ltd. Nov. 7, 1960 [Dec. 7, 1959], No. 41531/59. Class 132(2) A game of the bagatelle type simulating football has a playing board 2 with receptacles 8 each having a V-shaped body 10 and an aperture 11 in the board surface with a spring metal strip 12 which is depressed by a ball entering the receptacle and closes an electric circuit to light a lamp 9, the circuits for the lamps being formed from sheets of cardboard covered with metal foil cut away where required and the lamp holders being secured thereto by metal eyelets.
Patent GB-1114308-A (GB)
Title: Wrapping foils
IPC: B32B15/08
Filed: 1965-09-30
Abstract: 1,114,308. Bag tubes. RHEINISCHE BLATTMETALL A.G. 30 Sept., 1965 [1 Oct., 1964], No. 41585/65. Heading F2P. [Also in Division B5] Longitudinally seamed flat bags of tubular form are made by heat sealing the inside face to the outside face of a wrapping foil comprising an aluminium foil as a centre ply bonded on both faces to a thermoplastic synthetic film, at least one of the films being biaxially prestretched. The examples describe the use of foils comprising 1 (a) an aluminium foil bonded on each face to a prestretched polypropylene film and (2) an aluminium bonded on one face to polypropylene film and on the other face to prestretched polypropylene film.
Patent GB-988210-A (GB)
Title: Improvements in automatic and like firearms
IPC: F41A9/30
Filed: 1963-10-22
Abstract: 988,210. Firearms. OLIN MATHIESON CHEMICAL CORPORATION. Oct. 22, 1963 [Nov. 28, 1962], No. 41696/63. Heading F3C. A firearm has a receiver 1, a barrel 2 secured to a forward portion of the receiver and a tubular magazine 3 mounted below the barrel and having a mouth opening into the receiver. A pair of cutoffs 15, 16 are mounted in the receiver, the cut-off 15 being normally spring biased inwardly to block the mouth of the magazine and the cut-off 16 being normally spring biased outwardly clear of the magazine mouth. A pair of slide arms 9, 10 extend into the receiver and are provided with cams 11, 12 which engage with followers 31, 32 formed, on the cut-offs. Rearward movement of the slide arms 9, 10 by the forearm 8 slidably mounted on the magazine first causes cut-off 16 to be cammed inwardly to engage behind the rim of cartridge 4. Further rearward movement causes the cut-off 15 to be cammed outwardly thereby releasing cartridge 4 and allowing it to be fed by a magazine spring into the receiver. The rim of cartridge 5 engages cut-off 16. Forward movement of the slide arms first permits the cut-off 15 to assume its normal position and then permits cut-off 16 to assume its normal position when cartridge 5 moves rearwardly slightly to engage cut-off 15. In semi-automatic and automatic firearms the forearm is fixed to the magazine and a gas piston is provided in front of the magazine tube to perform the function of the forearm.
Patent GB-1324908-A (GB)
Title: Separable tooth structure
IPC: E02F9/28
Filed: 1971-09-07
Abstract: 1324908 Excavator tooth assembly R L LAUNDER 7 Sept 1971 [29 Oct 1970 9 June 1971] 41742/71 Heading E1F Each of the two retainer pins 8 holding a digger tooth 4 on a support 3 comprises a pair of bar members 9 separated by an elastomeric spacer 10 and is equal in length to approximately half the combined length of bores 7, 6 in the tooth and the support, which bores, when the tooth is positioned on the support, are partially aligned so that the junctures between the bores cause the pins to assume outwardly tapering wedge configurations when inserted into the bores.
Patent GB-1157989-A (GB)
Title: Improvements in and relating to Cleaning Selected Surface Areas of Substrates
IPC: H01J37/34
Filed: 1966-09-20
Abstract: 1,157,989. Treatment of semi-conductors. INTERNATIONAL BUSINESS MACHINES CORP. 20 Sept., 1966 [23 Oct., 1965], No. 41823/66. Heading H1K. [Also in Division C7] Silicon wafer 20 has a layer of silicon oxide 21 on it and a molybdenum conductive land 23 extending over the silicon oxide. The surface of the molybdenum is oxidized, and glass layer 26 encloses it. Hole 28 is etched through glass layer 26 with nitric and hydrofluoric or fluoboric and hydrofluoric acids, then before making electrical contact with the molybdenum land 23 molybdenum oxide layer 40 is removed from area 38 by sputtering in argon or other gas. Building- up of a positive charge on glass layer 26 around hole 28 and consequent channelling of the sputtering ions to the middle of the holes is avoided by placing an electrically conductive mask 30 at the same potential as silicon wafer 20 over hole 28. The mask 30 may be replaceable, or may be a deposited layer on glass layer 26. Molybdenum is the preferred material for mask 30, but aluminium or chromium may be used.
Patent GB-971804-A (GB)
Title: A method for swaging a sleeve on the end of a steel wire cable,and a cable provided with a sleeve by the application of this method
IPC: H01R43/04
Filed: 1961-11-23
Abstract: 971,804. Jointing by forging. TEXMETAUX A.G. Nov. 23, 1961 [Nov. 24, 1960], No. 41871/61. Heading B3H. [Also in Division D1] A metal sleeve 1 is secured to the end of a steel wire rope 3 by first compressing the sleeve between flat die faces 4, Fig. 5, to a flat-oval cross section, turning the sleeve through 90 degrees about its axis and swaging it between two half-cylindrical die faces 7 to a circular cross-section, Fig. 4, of a diameter corresponding to the minor axis of the oval cross-section. The rope may have a manilla hemp rope and the sleeve may form part of a connecting eye or fork. The compression of the sleeve is limited by the engagement of faces 5 on the dies; separate filling plates may be used in the recesses 6 to form the flat die faces. Separate dies may be used for the two swaging operations. A plug 8, Fig. 1, of rubber or a thermoplastic may be clamped in the end of the sleeve during the swaging thereof. This houses a contact pin 9 normally engaging the end of the rope and in circuit with a warning lamp 9. The latter indicates that the proper connection has been made and that sleeve has not been displaced in service. In another embodiment, Figs. 7, 8 (not shown), the sleeve has a conical bore which after swaging provides a gripping pressure on the rope varying uniformly from maximum at the inner end of the bore to zero at the outer end.
Patent GB-1119805-A (GB)
Title: A glare-protection assembly for a motor vehicle
IPC: B60J3/02
Filed: 1965-10-04
Abstract: 1,119,805. Motor vehicle antiglare assembly. W. SCHULER. 4 Oct., 1965 [8 Oct., 1964], No. 42028/65. Heading B7J. A motor vehicle glare protection assembly comprises a tinted transparent light shield 4 pivotally and slidably attached to a sun visor 1 solely by means of a magnetized stud 5 carried by the shield 4 for magnetic adherence to a metal strip 3 carried vertically on the sun visor 1. The stud 5 may be carried on a hinged plate secured to the upper part of the shield 4 or may be detachably slidably mounted in a vertical slot in the shield. The strip 3 may be detachably secured to the sun visor 1 by spring clips extending from each end of the strip or by an endless elastic band threaded through slots in the strip. The light shield 4 may have upper and lower horizontal zones of blue and yellow tint respectively.
Patent GB-1435350-A (GB)
Title: Desulphurization and hydrogenative conversion of black oils
IPC: C10G47/04
Filed: 1973-09-07
Abstract: 1435350 Treating heavy oils UOP Inc 7 Sept 1973 [8 Sept 1972] 42117/73 Heading C5E A sulphurous, ash- and asphaltene-containing hydrocarbon charge 1 is treated by deashing at 2 with a selective solvent 3 to provide a a solvent-lean ash-containing phase 4 and a solvent-rich, asphalatene-containing phase 5; the phase 5 is reacted with hydrogen 6 in contact with slurry of unsupported sulphide of Ti, V, Cr, Zr, Nb, Mo. Hf, Ta, Ti and/or V as catalyst and the reaction effluent 9 is separated at 10 into a metal-containing sludge 11  and a hydrocarbon phase 12; and the phase 12 is reacted with hydrogen at 14 using a catalyst comprising a porous carrier and a Cr, Mo, W and/or Group VIII metal component. The deashing is suitably carried out at 50-500‹ F. using as solvent a C 2-7  hydrocarbon, e.g. nheptane, or a naphtha boiling below 200‹ F. The hydrogenation at 8 can be carried out at 225-500‹ C and 500-5000 p.s.i.g. in the presence of 2-30 mole per cent hydrogen sulphide, e.g. using vanadium sulphide as catalyst. The hydrogenation at 14 can be carried out at a maximum catalyst bed temperature of 600-900‹ F. and 500-5000 p.s.i.g. using a catalyst, e.g. consisting of nickel and molybdenum on silica-alumina of on silicaalumina-boron phosphate. Suitable feedstocks are block oils; in an example tar sand oil is treated.
Patent GB-1006359-A (GB)
Title: Improvements in type alignment gauges
Inventor: PHILLIPS HAROLD FREDERICK
IPC: B41B1/00
Filed: 1963-05-08
Abstract: 1,006,359. Determining dimensions and shapes. C. NICHOLLS & CO. Ltd. Aug. 7,1964 [May 8, 1963], No. 42181/62. Heading G1M. [Also in Division B6] A device for measuring the distance of the base of a type character from the edge of the type body C, Fig. 4, cast therewith, comprises a frame a with a base plate a<SP>2</SP> upon which the body C is placed with the character face abutting against a vertical face a<SP>7</SP> on the frame, and a dial micrometer B with a feeler foot B<SP>1</SP> having either a Knife edge or being wedge shaped for engaging the character base. In use, the dial B is first set to zero with the foot B<SP>1</SP> engaging the plate a<SP>2</SP> the foot B<SP>1</SP> is lifted by a lever D, the type is placed in position on the plate a<SP>2</SP> and then the foot B<SP>1</SP> is lowered to record the required measurement. The type body is formed with a transverse groove on the corresponding to the base of the character, and with a ridge on the opposite face. A recess a<SP>5</SP> is provided in the plate a<SP>2</SP> to receive the ridge, and also a further recess a<SP>6</SP> to clear burrs on the type body which might cause a faulty reading.
Patent GB-884772-A (GB)
Title: 2-alkoxy-4-amino pyrimidines
IPC: C07D239/46
Filed: 1958-12-31
Abstract: The invention comprises compounds of the general formula <FORM:0884772/IV (b)/1> in which X is hydroxy or a halogen and R is benzyl or C1-6 alkyl, and the hydrohalides of the compounds in which X is a halogen; and the preparation thereof by reducing compounds of the general formula <FORM:0884772/IV (b)/2> (wherein R1 is C1-6 alkyl or benzyl) with an alkali metal aluminium hydride to produce the compounds where X is hydroxy, which may if desired, be treated with a thionyl halide or hydrogen halide to produce the compounds where X is halogen.  The products have antitumour activity.
Patent GB-1129162-A (GB)
Title: Automatic control structure for particle study apparatus
IPC: G01N15/12
Filed: 1965-10-05
Abstract: 1,129,162. Counting and sizing particles. COULTER ELECTRONICS Ltd. Oct. 5, 1965 (Oct. 19, 1964], No.42314/65. Heading GIN. Particle counting apparatus operating on the Coulter principle is provided with control circuitry for automatic operation. In one embodiment, the control circuit described in Specification 927, 346 is modified by the inclusion of relays 314, 336 controlled by valves V302 and V322 (Fig. 4). The only manual operation required is manipulation of cock 80 to draw the mercury in manometer 60 to the unbalanced condition shown. As the mercury column breaks contact with start electrode 90 the potential on line 290 falls from earth potential to some negative value. This causes valve V302 to conduct, energizing relay 314 and connecting together lines 296, 297 to reset electronic counters (V19, V22, Fig 5, not shown) and lines 298, 299 to reset bistable circuit 106 by rendering V5B conductive. Current is thereby permitted to flow between electrodes 66, 74 from DC line 100, having previously flowed preferentially through V5A. When cock 80 is closed operation proceeds as described in the earlier Specification the counters being supplied with pulses starting when the mercury column reaches electrode 90 again and continuing until electrode 92 is reached. This, in addition to changing over bistable circuit 106, triggers valve V322 so that relay 334 is energized to disconnect electrodes 66, 74 from the DC source. The circuit shown in Fig. 2 uses transistors. In bistable device 3 transistor Q601 is conductive when manometer 60 is in its quiescent state, with mercury column 84 contacting both electrodes 90, 92. When cock 80 is opened and mercury is drawn to the right, contact with electrode 92 is broken so that point P4 is not grounded and bistable circuit 3 is prepared for switching. When contact with electrode 90 is subsequently broken transistor Q118 is switched off causing point P5 to go positive and so switching bistable circuit 3. A delay in switching is provided by capacitor 441 to allow transients to decay. Conduction of transistor Q602 energises relay K1 to reset counters 7, switch on current source 10, disable a dimming device associated with an aperture viewing lamp, and disable a deflecting device which deflects the trace of a cathode ray tube off the face of the tube. When cock 80 is closed and the mercury column again reaches electrode 90 a start signal on line 136 causes Q118 to conduct and, after a delay to allow transients to decay, forward biases diode D116 of an AND gate 8. Pulses from amplifier 9 then pass through transistor Q117 and AND-gate 8 to the counters. When the mercury column reaches electrode 92 a stop signal is generated on line 420, switching bistable circuit 3 and providing a bypass for the signal pulses through diode D115 and transistor Q601. Relay K1 is de-energized and the aperture current is cut off, the viewing lamp is dimmed and the CRT base line is deflected.
Patent GB-953794-A (GB)
Title: Improvements relating to screws
Inventor: MARVIN ARTHUR AMBROSE
IPC: F16B35/04
Filed: 1959-12-12
Abstract: 953,794. Binding posts. GKN SCREWS & FASTENERS Ltd. Dec. 8, 1960 [Dee. 12, 1959; April 8, 1960], Nos. 42327/59 and 2490/60. Heading H2E. [Also in Division F2] A set screw, for securing an electric wire, has an axial hole 11 extending from its tip and containing an insert of which at least portion 15 is of nylon. The insert may be a simple nylon or other synthetic resin cylinder, Fig. 2 (not shown), with a diameter greater than that of a blind hole in which it is received, but as shown the insert has a large annular flange 15 and a similar small flange 14, both of nylon and connected by a stem 13 which may be of nylon, steel or aluminium. A metal washer 16 is first placed at the screw tip and the small flange 14 is forced through the narrow hole 11 through the screw to enter a hexagonal socket 12 and regain shape to hold the insert in position. The hole 11 is wider than the stem 13 so that the insert is rotatable. The resilience of the exposed portion of the nylon insert locks the screw in position by causing its threads to be pushed against those which receive them.
Patent GB-1079666-A (GB)
Title: Fastening such as a wall plug or an attachment means having a plug portion,for securement in wall or masonry bores
IPC: F16B13/12
Filed: 1964-10-16
Abstract: 1,079,666. Stud & socket fastenings. A. FISCHER. Oct. 16, 1964 [Nov. 5, 1963], No. 42389/64. Heading E2B. [Also in Division F2] For securement by its own resilience in a bore in a wall or in masonry, a synthetic resin fastening 1, e.g. of nylon, having a head 3 which may be hooked to suspend an article or alternatively be hollow to take a screw, has a shank divided into two limbs 1a, 1b which are bowed outwardly, their resistance to being compressed together being increased by locating between them, resilient filling material or a spring or springs such as at least one leaf spring 5. The limbs 1a, 1b may be joined at one place, by a bridge piece 4 or by adhesive. The end 5a of each spring may be notched to straddle the bridge piece.
Patent GB-899741-A (GB)
Title: A variable speed torque converter and load compensating gear
IPC: F16H61/62
Filed: 1960-12-09
Abstract: 899,741. Hydro-mechanical variable-speed gear. TOMS, J. C. Dec. 9, 1960, No. 42473/60. Class 80 (2). A hydro-mechanical variable-speed gear comprises a one-piece impeller, having blades 3 and 4, fixed to an input shaft 2, a first turbine 6 connected to a sun-gear 13, a second turbine 24 on a rotatable casing 9 connected to ring gears 15, first planetary gears 14 connected to sun gear 19 by a carrier 17, and second planetary gears 20 connected to an output shaft 22 by a carrier 21. The ring gear 15 on the chamber 9 is initially held against counterrotation by a one-way detent (not shown), but as the speed increases all the elements eventually rotate at the same speed providing direct drive. A freewheel clutch 25 between input and output shafts 2, 22 permits the output shaft to drive the input shaft for braking through engine or alternatively enables engine to be push-started. A second freewheel clutch may be fitted to permit drive from the ring gear chamber 9 to the output shaft. More than two planetary trains may be provided. Oil is circulated through chamber 9 by a pump (not shown) to permit cooling and topping up while running. In very cold conditions the oil system may be linked to the engine oil supply to ensure an operative temperature.
Patent GB-1275006-A (GB)
Title: Multiple surface fluid film bearing
Inventor: BILLAWALA SHAHBUDDIN ABDULLA
IPC: G11B21/21
Filed: 1970-09-08
Abstract: 1275006 Fluid bearings BURROUGHS CORP 8 Sept 1970 [22 Oct 1969] 42861/70 Heading F2A [Also in Division G5] A magnetic head 15 has three or more bearing surfaces AB, BC, CF inclined at small angles relative to one another so that when rapid relative movement is produced between a disc or drum record 16 and the head 15, a highly stable air bearing is formed. The head may be biased to within 35 micro-inches of the record.
Patent GB-1386180-A (GB)
Title: Apparatus for laterally stabilising the bottom links of a three-point implement hitch
IPC: A01B59/041
Filed: 1972-09-15
Abstract: 1386180 Tractor power lift mechanisms DEERE & CO 15 Sept 1972 [16 Sept 1971] 42899/72 Heading A1P Lateral sway of the lower links 4 of the mechanism is controlled by an abutment block I having an arcuate guide track within which a member 5 can slide between a lower position in which lateral sway is prevented in all positions of the link, and an upper position in which an amount of sway is allowed in the working position and is limited by a recess in the guide track of the abutment block. A pin 7 holds the member in its different positions.