baber/WOPTO huggingface dataset:
Patent GB-947786-A (GB)
Title: Dipping varnish for electrical components
Inventor: JORCHEL ADELHEID
IPC: C09D163/02
Filed: 1961-01-24
Abstract: A dipping varnish for electrical components consists of 100 parts by weight of a liquid epoxide resin and 50-150 of a liquid polyamide, together with enough diacetone alcohol to form a clear solution.  The epoxides are bisphenol A-epichlorohydrin condensates and the amides are prepared from fatty acids, e.g. linseed or castor oil acids and aliphatic polyamines e.g. ethylene diamine or diethylene triamine. Reference has been directed by the Comptroller to Specification 726,570.ALSO:Electrical components such as coils and printed circuits are coated by dipping into a bath containing 100 parts by weight of liquid epoxy resin (bisphenol A-epichlorohydrin condensate), 50-150 parts liquid polyamide resin (aliphatic polyamine-fatty acid, (e.g. castor or linseed oil acids) condensate) and sufficient diacetone alcohol to form a clear solution, and drying and allowing the resins to cure at room temperature.  Reference has been directed by the Comptroller to Specification 726,570.
Patent GB-228569-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D9/02
Filed: 1925-01-31
Abstract: 228,569. British Thomson-Houston Co., Ltd., (Assignees of Wirt, H. L.). Feb. 1, 1924, [Convention date]. Reducing fluid friction in operative stages; casings.-In an elastic fluid turbine having partial admission, the fluid entrained by the ring of bucket elements is deflected away from and around the arcuate stream of working fluid. The Figure shows the stage 11 provided with a passage 21 formed by an L-section wall 22 with scoops 25 at its ends for deflecting the entrained fluid from between the bucket rings and over the arcuate nozzle and intermediate guide-blade members 20 which are situated there-between.
Patent GB-932145-A (GB)
Title: 2-mercurimethyl-cumaranes
IPC: C07F3/14
Filed: 1962-01-25
Abstract: The invention comprises 2-mercurimethyl cumaranes of formula <FORM:0932145/IV(a)/1> wherein X is a halogen atom, a hydroxy group, an alkyl-carboxylic radical or an aryl carboxylic radical, R1 is hydrogen, a halogen atom, a hydroxy or nitro group, or a C1-C4 alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkoxy, thio-alkyl, p  carboxylic or alkyl carboxylic acid radical, R2 and R3 are hydrogen atoms or C1-C4 alkyl radicals or taken together form an alkylene group containing up to 3 carbon atoms to form a cycloalkane and n is a whole number from 1 to 3. Specific compounds include 2 - chloromercurimethyl-6-chloro - cumarane, 2 - acetylmercurimethyl-6-chloro - cumarane, 2 - chloromercurimethylcumarane and 2-acetylmercurimethyl-cumarane.  They may be prepared by reacting o-allyl-phenols or 2-cycloalkenyl-phenols with mercury salts in an aqueous or alcoholic medium.  Phenols specified include 2-allylphenol, 2,6-diallylphenol, 2,4,6-triallylphenol, 2 - allyl - 4 - methyl - phenol, 2-allyl-6-methylphenol, 2-allyl-6-isopropyl-phenol, 2-allyl-4-chlorophenol, 2-allyl-6-chlorophenol, 2-allyl-5-nitrophenol, 2-allyl-hydroquinone, 2-allyl-4-methoxyphenol, 2 - cyclopentenylphenol, 2-cyclopentenyl-4-methylphenol, 2-cyclopentenyl-4-chlorophenol and 2-cyclohexenylphenol.  The compounds of the invention may be used as bactericides and fungicides.ALSO:Bactericidal and fungicidal compositions for treating plants comprise a carrier, diluent or extender and as active ingredient a 2-mercurimethyl cumarone of formula <FORM:0932145/VI/1> wherein X is a halogen atom, an hydroxy group, an alkyl-carboxylic radical or an aryl carboxylic radical, R1 is hydrogen, a halogen atom, an hydroxy or nitro group or a C1-4C alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkoxy, thioalkyl, carboxylic or alkyl carboxylic acid radical, R2 and R3 are hydrogen atoms or C1-C4 alkyl radicals or taken together form an alkylene group containing up to 3 carbon atoms to form a cycloalkane and n is 1 to 3.  Specific compounds include 2-chloromercurimethyl-6-chlorocumarane, 2 - acetylmercurimethyl - 6-chloro - cumarane, 2 - chloromercurimethyl-cumarane and 2-acetylmercurimethyl-cumarane.  The compositions may include fertilisers, chlorinated cyclic hydrocarbons and phosphoric acid pesticides.
Patent GB-346370-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone exchange systems
IPC: H04M7/10
Filed: 1930-01-07
Abstract: 346,370. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., WRIGHT, E. P. G., and HARTLEY, G. C., Columbia House, Aldwych, London. Jan. 7, 1930, No. 2893/31. Divided on 346,368. [Class 40 (iv).] In an exchange network such as that shown, the number of direct junctions between an exchange A and each of the exchanges B, C, F, G is substantially less than the number required to carry the full traffic, calls to any of these exchanges for which a direct junction is not available being automatically routed via a tandem exchange T over a common route of tandem junctions. The invention is described with reference to the byepath system shown in Specification 346,368 in which a junction to a directly-reached exchange is normally selected by first and second byepath apparatus, but if all the direct junctions are busy a register-translator is employed to send out the necessary extra digit or digits for routing the call through the tandem exchange. The tandem junctions are connected to the ends of the banks of the conversational and byepath switches the arrangement being such that after the byepath switch has hunted unsuccessfully over a group of direct junctions as marked by a further code-responsive switch, the marking is transferred to the group of tandem junctions and hunting is then resumed over this group.
Patent GB-1165742-A (GB)
Title: Improvements in or relating to Ultrasonic Testing Apparatus
Inventor: HETHERINGTON MATTHEW JAMES
IPC: G01N29/26
Filed: 1966-01-21
Abstract: 1,165,742. Bearings. STEWARTS & LLOYDS Ltd. 13 Jan., 1967 [21 Jan., 1966], No. 2958/66. Addition to 1,038,491. Heading F2A. [Also in Division H4] In an apparatus for inspecting longitudinally moving tubes or other cylindrical bodies, ultrasonic scanning means 4 is mounted on a liquid bearing 3 for rotation around the body to be inspected. The bearing comprises a cylindrical bronze stator 1 (with an axial passage for the body to be inspected), a rotor 2, and an intermediate laminated plastics sleeve 6. Water under pressure is distributed to the bearing surfaces via inlet ports 21, passages 10 and grooves 13, 14 in the sleeve 6 and escapes between end thrust plates 7, 8 of the sleeve and the ends of the rotor. Water also escapes via an annular passage 11 in the sleeve and mixes with water fed via ports 22 and passages 9 to conduit 23 to provide jets of coupling fluid for crystal transducers in the scanning means 4. Electrical connection between the crystals and recording apparatus is made by a slip-ring and brush arrangement. Air may be supplied to rotor 2 via a passage provided between the rotor and the stator 1, for moving testing pads into engagement with the test body. Either of the water supplies (through ports 21 or ports 22) may be used as the sole source of coupling fluid.
Patent GB-558052-A (GB)
Title: Improvements in and relating to methods of manufacturing electric resistances
IPC: H01C1/148
Filed: 1942-03-09
Abstract: 558,052. Wire and ribbon resistances. BAYLISS, H. E. March 9, 1942, No. 3079. [Class 37] The former is treated with a resilient coating before mounting the connecting bands and winding the resistance wire thereon. A length of glass tube A, Fig. 1, is annealed, chemically cleaned, and coated by dipping or otherwise with a resilient layer of lacquer which adheres to the glass. When this layer is dry or semi-dry, one or more connecting bands B of tinned copper or soft resistance material are clipped round the tube by clips C surrounding the bent-up ends P of the bands. The clips and projections may then be soldered together. A projecting tongue D is punched in each clip and the ends or the resistance wire are spot welded or soldered to these tongues. The resistance wire is wound with sufficient tension to bed into the resilient layer and is coated with a fixative which may be identical with that first applied to the former A or of different nature. The former, connecting bands, and resistance winding are then dipped into lacquer or other fixative that will key with that already used. Further processes for drying, hardening, setting &c. may afterwards be applied. The fixative may have particles of insulating material such as powdered mica mixed therewith to serve as spacers between adjacent turns of the resistance wire when dry. The fixative may be capable of vitrification. In a modification Fig. 2, the bands B have tails T kept flat with the surface of the former and extending beyond the ends thereof. A second glass tube K is placed over the outside of the wound former A and secured thereto either by cement or by fusing the edges X, Y together. Specification 558,070 is referred to.
Patent GB-754835-A (GB)
Title: Improvements in cartridge syringe units
IPC: A61M5/24
Filed: 1954-02-03
Abstract: 754,835. Hypodermic syringes. AMERICAN HOME PRODUCTS CORPORATION. Feb. 3, 1954 (Feb. 4, 1953 ; April 10,1953], No.3157 /54. Class 81(2). A syringe unit comprises a transparent ampoule sealed at one end by a slidable plunger having a threaded connection at its exposed end and having its other end contracted to a small flanged opening which is closed by a flexible closure held in position by a ferrule compressed around the flanged opening, and integral with or engaging a needle hub in which is mounted a double-ended needle, one end of which projects through the flexible closure member into the ampoule. A glass ampoule 1 is provided with a rubber plunger 5 and, at the other end, a narrow flanged opening 7. A rubber disc 9 is pressed over the flange 8 by a hub 10 of tin or aluminium, a skirt 11 of the hub 10 being rolled or crimped round the flange 8. Alternatively the closure is in the form of a disc having a grooved shank (not shown) which is pressed into the opening 7 and held in position by the hub 10. A double-ended needle 15 is mounted in the hub 10 which is provided with a male thread 12 and a reduced portion 13. A needle sheath 16 e.g. of rubber or other elastomer is fitted over the needle 15 on to the reduced portion 13 of the hub 10, the end 17 of the sheath being solid and so dimensioned that the needle pierces it and is thereby sealed. The ampoule and needle assembly described above may be used as a disposable syringe unit, a cover 20 for the needle 15 and sheath 16 being screwed on to the male thread 12 of the hub 10 for transit and storage purposes. A female thread 22 is provided at one end of the cover 20 for engagement with a threaded insert 6 in the phmger 5 of the ampoule I so that the cover 20 may serve as a plunger rod. Finger grips in the form of a rubber ring 4 or a flange may be provided at the proximal end of the ampoule. Alternatively the ampoule 1 may be surrounded by a slotted brass sleeve having cutepral finger-pieces (not shown). The ampoule and needle assembly may be used in a permanent syringe, Fig. 9, A slotted syringe barrel 301 has a pivoted head 302 and a push rod 304. The ampoule and needle assembly is inserted into the barrel 301 when the head 302 is pushed to one side, a female thread 316 in an opening at the distal end of the barrel being screwed to the needle-mounting hub. The needle sheath 321 is made of rubber or neoprene. The parts of the ampoule and needle assembly are sterilised before they are assembled.
Patent GB-809547-A (GB)
Title: Process for rendering substantially pure acetylene safely transportable under superatmospheric pressure
Inventor: JNR LEBBEUS COURTRIGHT KEMP
IPC: C10H21/08
Filed: 1956-02-01
Abstract: A stream of substantially pure acetylene is transported under superatmospheric pressure from a first location to a second location by fluid flow through a conduit by forming a suspension in the stream of particles of a heat-conductive solid material substantially inert with respect to acetylene, the particles having a size of 10 to 800 microns and passing the suspension at a velocity in excess of 1 foot per second, preferably from 2 to 10 feet per second.  The solid may be a metal such as iron, aluminium, chromium, nickel or cobalt; or zinc oxide, silica, chromia, alumina or molybdenum sulphide; copper or silver should not be used on account of the danger of explosion. In an example zinc oxide is used as the carrier and this is subsequently used for the production of acrylonitrile by the reaction of acetylene with hydrogen cyanide.  Separation of the solid from the gaseous stream may be effected by a cyclone separator.
Patent GB-790426-A (GB)
Title: Improvements in or relating to a plastic tap or valve, particularly for glass burettes
IPC: B01L3/02
Filed: 1955-02-03
Abstract: 790,426. Valves. TOWNSON & MERCER, Ltd., and BROCK, R. B. Feb. 3, 1956 [Feb. 3, 1955], No. 3207/55. Class 135. The body of a plastic tap or valve includes hollow tapered parts for receiving separate pieces of tubing and a flow passage or passages interconnecting the bores of the tapered parts which is or are controllable in area. In Fig. 1, a polythene valve body 1 has tapered bores 2, 3, receiving corresponding tapered ends of a glass burette tube 11 and jet 12 respectively. Elbow passages 4 interconnecting the bores are controlled by a flexible diaphragm 6 secured in the body by a polythene gland nut 8 and operable by a member 10. The member 10 may be made of polythene or polystyrene. In Fig. 3, body parts 20 are externally tapered to receive the internally tapered ends of glass or plastic tubing.
Patent GB-1461941-A (GB)
Title: Monitoring cardiac rhythm
IPC: A61B5/366
Filed: 1974-01-23
Abstract: 1461941 Electro-medical apparatus F HOFFMANN-LA ROCHE & CO AG 23 Jan 1974 [16 Feb 1973] 03213/74 Heading G1N Cardiac rhythm is monitored by obtaining for each QRS wave of the electrocardiogram the peakto-peak value, and the peak-to-peak value of its derivative with respect to time and then forming the quotient of the two values to obtain a signal indicative of the width of the base of the R wave. In order to obtain the peak-to-peak value of the QRS wave the ECG is applied via terminal 10 on the one hand direct to a capacitive peak storage device 14 and on the other hand via inverter 21 to a similar storage device 22. Storage devices 14, 22 thus store respectively the positive and negative peaks of the ECG waveform which are sampled by closing switches 17 and the two values are added at 25 to give the peak-to-peak value of the ECG. The peak-to-peak of the derivative with respect to time is obtained similarly by applying the derivative to terminal 11 connected to storage devices 30, 31 and then adding at 29 the two peak values. By dividing the signal at 26 by that at 28 an index i is obtained which is proportional to the width of the base of the R wave and which is indicative of the action of the heart. In order to allow for charging of the capacitors to their maximum amplitudes divider 27 is rendered operative at a time T 1  after each R wave by a sampling pulse of duration T 2  produced by device 36 which is connected via delay 37 to terminal 12 to which is applied pulses coincident with the R waves of the ECG. The output pulse I of divider 27 having an amplitude proportional to i is compared at 44 with a level s which is set according to the individual requirements of the patient and to obviate parasitic signals and if an abnormal signal is obtained e.g. I' pulse K is produced which is recorded and/ or used to operate an alarm. The storage devices are reset by switches 18 controlled by pulses on line 39 produced by device 38.
Patent GB-946401-A (GB)
Title: Improvements in gas fires
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C3/10
Filed: 1960-01-29
Abstract: 946,401. Igniting gas fires. OATLEY TECHNICAL DEVELOPMENTS Ltd. April 19, 1961 [Jan. 29, 1960], No. 3217/60. Heading F4F. In a gas fire having a row of radiants 2 supported by a fire back 1 having side cheeks 3, a flash passage 15 extends through one of the side cheeks 3 and through an aligned opening 17 in the end radiant whereby the main burner jet 5 can be ignited from a continuously burning pilot 14. Further openings 17 provide flash communication between adjacent radiants. The flash passage is formed by a heatresisting steel tube, and a projection 18 on the tube or on the wall of the end radiant deflects gas into the flash passage. Alternatively, an auxiliary pilot may be provided. Gas is supplied to the fire through a pressure governor 7, a control tap 8 and a flame failure device 9 comprising a spring-loaded magnetic valve which is held open by a thermocouple 20 heated by the pilot 14 and is provided with a resetting button 21. The flame failure device may alternatively comprise a bi-metal strip directly operating a gas valve. A unitary radiant panel may replace the radiants 2. When neat gas jets are used for the main burner the fire may include one or more combustion chambers integral with or separate from the radiants or the radiant panel.
Patent GB-394052-A (GB)
Title: Improvements in clips for the attachment of mudguard stays to cycle frames
IPC: B62J15/02
Filed: 1932-02-04
Abstract: 394,052. Cycle mudguards. WASDELL, E. T. and CHATWIN, G. F., Holdford Road Works, Witton, Birmingham. Feb. 4, 1932, No. 3293. [Class 136 (i).] In a band clip of the type described in Specification 277,903, [Class 136 (i), Cycle &c. accessories], for attaching one or more mudguard stays to a cycle frame, and wherein the stay is adjustably clamped in a sleeve on the clip by a bolt or other fastening adapted also to secure the clip to the cycle frame, the clip is made adjustable in size to fit various sizes of cycle frame members. In one form, the clip is formed in two parts 12, 14 of which one part 12 is made from a sheet-metal blank having ears adapted when bent to form sleeves 6, 7 to receive the mudguard stays 8. The other part 14 is formed with a hook 19 adapted to engage one of a series of vertical slots 15 in the part 12, according to the size of clip required ; in engaging the parts a terminal tongue 16 on the part 12 is first passed obliquely into a slot 20 in the part 14, the parts being then turned into line, notches 17 behind the tongue 16 engaging the edges of the slot 20. The main clip and the stays 8 are clamped by the same bolt 9 and wing-nut 10. In a modification, the clip is made in one piece, and the size is adjusted by means of more than one piercing for the bolt 9.
Patent GB-100476-A (GB)
Title: Improvements in and connected with Machines for Coating Metal Plates with Tin, Terne or other Metal or Alloy.
Inventor: TAYLOR PERCY BRAINE
Filed: 1916-03-06
Abstract: 100,476. Taylor, P. B. March 6, 1916. Tinning. - Scrapers c, c<1> are applied to the riser rolls b, b<1> of tinning-machines. The rolls are situated above the finishing- rolls and out of the grease, and may be made of glass, glazed earthenware, or other highly polished non-metallic material.
Patent GB-1008369-A (GB)
Title: Improvements relating to machine tools having automatic control mechanisms
Inventor: HARTLEY FREDERICK WALTER
IPC: G05B19/18
Filed: 1961-01-28
Abstract: 1,008,369. Programmed machine tool control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 25, 1962 [Jan. 28, 1961], No. 3358/61. Heading G3N. In a machine tool control system, wherein a worktable and a rotary milling cutter are relatively controlled by co-ordinate signals derived from a record, the axis of the cutter is inclined to lie in a plane which is perpendicular to the instantaneous direction of cut of the cutter. As shown, Fig. 1, a worktable 2 is movable in two dimensions relatively to a base plate 1 by two lead screws and a work-piece 3 is clamped to the worktable. A gantry 4 carries an arcuate slide 5, rotatable about a vertical axis by a servo means 6. A carriage 7 is movable along the slide to an angular position by a positional servo and a milling cutter 9 held in a chuck 10 is driven by a motor 11. The arcuate slide 5 is positioned in relation to the gantry by a system, Fig. 4a, responsive to the differentiated outputs of the quadratic interpolators for the x and y worktable co-ordinates respectively. The differentiated outputs are fed to stator windings 17,18 of a resolver. The rotor 21 of the resolver is connected to a shaft 19 carrying the arcuate 5 and controls a slide driving motor 20 through an amplifier 22. The angle of inclination of the cutter carriage 7 to the vertical axis of the slide is controlled by a system 4b wherein an amplifier 24 amplifies the difference between a signal from a store 23, representing angle of inclination, and a feedback signal from a feedback unit 25 which produces a signal representing the relative positions of the carriage 7 and the arcuate slide. The output signal from the amplifier 24 supplies a motor 8 which causes the carriage 7 to move with respect to the slide by means of a rack and pinion gearing. The feedback unit 25 comprises a zig-zag resolver with one winding mounted on the carriage 7 and the other on the slide. Specifications 830,461, 830,462 and 848,412 are referred to.
Patent GB-867674-A (GB)
Title: Improvements relating to starting-air control mechanism for diesel or like engines
IPC: F01L13/00
Filed: 1959-01-31
Abstract: 867,674. Starting in both directions. ABELL, T. W. D. Jan. 29, 1960 [Jan. 31, 1959], No. 3528/59. Class 7(5). Starting-air control mechanism for Diesel or like engines comprises a pressure-fluid distributer 1 including first 2, 3 and second 4, 5 reciprocating piston valve means operable under the action of corresponding first 15, 16 and second 17, 18 engine driven cam means to distribute the pressure fluid for forward and reverse starting respectively, a control valve 38 for selectively connecting the first and second valve means to a source of pressure fluid, and piston and cylinder means 26, 27, 28, and 29 for each engine cylinder operable by the pressure fluid from the distributer to actuate in sequence the starting-air valves of the engine cylinders. As shown, each piston valve 2 ... 5 has therein a T-shaped through bore 2A ... 5A, the limb of the T opening from the top face of the piston. The pistons 2, 3 are connected to pressure line B (forward starting) from the control valve and pistons 4, 5 are connected to pressure line C (reverse starting). The T-heads of the bores co-operate with pairs of spaced ports 7, 8; 9, 10; 11, 12; 13, 14; formed in the side of the distributer block 6. The compressed air from the distributer 1 passes to the piston and cylinder devices 26, 27, 28 and 29, each consisting of a pair of coaxial barrels 30, 31 in which slide a pair of spaced pistons secured to the valve spindle for the starting air from source D. A compression spring urges the valve spindle to closed position. The barrels 30 are connected by air lines to the forward ports 7 ... 10 of the distributer and the other set 31 to the "reverse" ports 11 ... 14. A pair of venting slots in each piston valve 2 ... 5 are spaced one to each side of the bore discharge and co-operate with the ports to vent the barrels to atmosphere at the appropriate instarts. The compressed air from the source passes first through a safety valve 37. On closure of the valve 37 by movement of lever 41 the follow rollers at the ends of the piston valves 2 ... 5 are lifted clear of their cams 15 ... 18 by means of a series of levers mounted on the distributer block. Opening of the safety valve 37 releases the levers which are then free to rock with the reciprocating movements of the piston valves 2 ... 5.