baber/WOPTO huggingface dataset:
Patent GB-690024-A (GB)
Title: Improvements in or relating to pulse transponders for radar systems
IPC: H03K3/55
Filed: 1952-01-18
Abstract: 690,024. Radio signalling; pulse generating circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 18, 1952 [Jan. 22, 1951], No. 1524/52. Classes 40 (v) and 40 (vi)] In a pulse transponder for a radar system, the incoming pulses trigger the gas-discharge tube 2 to discharge the line 3. The pulse thus produced, is applied to the reflector electrode 14 of the reflex klystron 1 from the junction of the series resonant circuit 15, 16 so that, for the duration of the pulse from the line, a predetermined number of voltage cycles occur at electrode 14. The pulse is also applied with positive polarity to the anode 13 through transformer 6. A number of radio frequency carrier pulses are thus generated by the klystron for each incoming pulse and their radio frequency varies over a range of, for example. 30 Mc/s. at a mean wavelength of 3 cm. The output lead 17 feeds an omni-directional aerial. The coding of the transmitted pulses may be made more complex by using a less simple network than the circuit 15, 16.
Patent GB-1288203-A (GB)
IPC: H01R4/68
Filed: 1970-01-13
Abstract: 1288203 Welding by fusion; joining superconductors MASCHINENFABRIK OERLIKON 13 Jan 1970 [31 Jan 1969] 1554/70 Headings B3A and B3R [Also in Divisions H1 and H2] The ends of stabilized superconductors are longitudinally stepped and freed from adherent oxides then joined mechanically and welded using an electron beam technique. Slots 4, 4<SP>1</SP> are made in end portions of the superconductors (which comprise superconductor wires 3, 3<SP>1</SP> plated with or embedded in copper or aluminium 2, 2<SP>1</SP>), the hatched portions (Fig. 1) are removed e.g. by milling, and the end portions cleaned prior to being overlapped. Cleaning may be performed by mechanical, chemical or ultrasonic means; the ends 1, 1<SP>1</SP> may be etched with hydrofluoric acid. The overlapped portions (Fig. 3) may sandwich superconductor inserts 6 e.g. of niobium-tin, and are riveted at 7 prior to having gaps between the ends 1, 1<SP>1</SP> welded at 8 using an electron beam technique.
Patent GB-200055-A (GB)
Title: Improvements in selective systems applicable to type-printing, telegraphy and to other purposes
IPC: H04L17/30
Filed: 1923-01-17
Abstract: 200,055. Semat, L. June 30, 1922, [Convention date]. Selective distant control systems. -Relates to a system for selecting one out of 2n circuits bv means of two groups of p and q relays respectively the relays having 1, 2, 4 &c. switch arms arranged as shown at 14, 15. In the system 2px2q=2n. According to the invention one group 14, selects one of 2P wires to each of which is connected one of the terminals of each of 2<q> of the circuits to be selected. The other group selects one of 2<q> magnets 20 each of which controls a rod 22 carrying 2<p> contacts, which co-operate with the other terminals of the circuits. The first switch arms 6 are connected to opposite poles of a battery. The relays 8 may be polarized so as to have three positions and instead of operating a number of switch arms may be replaced by groups of relays in series or parallel, with one arm each. In modification the group 14 controls rods such as 22. Means may be provided for locking the magnet armatures. In practice. the switch arms 6 are replaced by contact springs. The Specification as open to inspection under Sect. 91 (3) (a) comprises a discussion of the method of selection employed in the groups of relays 14, 15 and also arrangements of the type shown in Fig. 5 (Cancelled). In this system one of 27 lines on the left of the Figure (18 only being shown) is selectively connected to a corresponding line on the right. Three three-position relays with nine contact arms are employed, the arms being arranged to bridge pairs of contacts which are cross-connected to other pairs. This subject-matter does not appear in the Specification as accepted.
Patent GB-206052-A (GB)
Title: Improvements relating to lubricating apparatus
IPC: F16N3/12
Filed: 1923-01-18
Abstract: 206,052. Partridges, Ltd., and Mills, H. Jan. 18, 1923. Piston apparatus for discharging receptacles. -The hollow pistonrod c serves as cylinder to a small screwoperated piston g for supplying extra pressure to the lubricant.
Patent GB-142168-A (GB)
Title: Improvements in automatic couplings for railway vehicles
IPC: B61G5/08
Filed: 1919-01-24
Abstract: 142,168. Woodgate, H., and Main, A. Jan. 24,1919. Couplings, automatic.-Relates to automatic couplings for railway vehicles, of the kind in which a spigot on one vehicle is adapted to enter a socket on the opposed vehicle and to be locked therein by a twist action, the fittings carrying the spigot and socket members being pivoted on the vehicles so as to secure flexibility in negotiating curves. According to the invention, the fittings form component parts of, and serve as automatic couplings for, the vacuum or air brake pipes. Figs. 3 and 4 show respectively a vertical and a horizontal section, the socket fitting comprising a cylindrical casing b having an elongated entrance mouth which forms shoulders b<4> for engagement with lugs d<1> on the entering spigot or tension bar d. The casing b contains a sliding but non- rotatable tubular bush k normally pressed forward by a spring g and adapted to connect the hollow spigot d with a chamber b<1> at the rear of the socket lifting ccmmunicating with the brake-pipe e. The socket fitting is mounted on a vertical pivot f<1> and centralized by springs and carries a rotary operating-lever c<1> inter-connected with a corresponding lever c, Fig. 2, on the spigot fitting. The latter fitting comprises a tubular casing a<1> having a sliding buffer portion a, and an opening a<2> connecting the brake-pipe with the tubular spigot d. The spigot d is rigidly connected to the operating-lever c which is formed with a cylindrical bush c<2> having cam-surfaces c<3>, Figs. 3 and 7, adapted to co-operate with cam-surfaces o<1> carried by a spring-pressed sliding and non- rotatable sleeve o arranged in a casing n. The spigot fitting is pivoted to the vehicle at f and is centralized by springs q<1>. In operation, the spigot fitting is set in one position of the lever c or c' with the lugs d<1> at an angle of about 15 degrees to one side of the vertical, and the camsurfaces o<1>, c<3> as shown in Fig. 7. On entering the socket, the lugs d<1> engage on the non-yielding side of trip members in the socket which are movable in one direction only, and give the spigot a slight rotary displacement which removes the cams o<1>, c<3> from the position shown in Fig. 7, and allows the cams and co-operating spring p to rotate the spigot through 75 degrees to its locked position. Uncoupling is effected by rotating the operating-levers and re-compressing the spring p. The lever c or c<1> may, however, be set for shunting purposes so that the lugs d' are at an angle of about 15 degrees to the other side of the vertical in which case, on entering the socket b, they engage the yielding side of the trip members, and as rotation of the spigot or automatic coupling occurs. The cam-members o', in this position, are engaged in notches c<4> on the cam-members c<3>.
Patent GB-1487972-A (GB)
Title: Pressure imbalance indicators
IPC: G01L13/02
Filed: 1975-01-15
Abstract: 1487972 Brake fluid pressure imbalance indicator SOC ANON AUTOMOBILES CITROEN 15 Jan 1975 [22 March 1974] 1817/75 Heading F2F In a pressure imbalance indicator comprising a easing 4 with two supply ducts 13, 14 of independent fluid pressure circuits 2, 3 intersecting a bore 5 for a resiliently centred spool 6 with end faces co-operating with the easing to define chambers 11, 12 connected by ducts a, b to respective supply ducts 13, 14 and indicators 21 actuated by displacement of the spool from its central position, grooves 7, 8 of the spool are aligned with the ducts 13, 14 in its central position and at least one duct a, b includes a flow restrictor d, e. The spool may be stepped or the centring springs 15, 16 may be of different stiffness so that the indicator is responsive to different imbalance thresholds for faults in circuits 2 and 3. The spool lands may be disposed to close the supply duct to the faulty circuit when displaced (Fig. 3), and a by-pass duct 40 (Fig. 3) may be provided which is normally closed but on failure in front circuit 3 by-passes a rear brake pressure regulator L. Movement of the spool illuminates a lamp 21 and preferably also actuates a solenoid 41 or 42 (Fig. 3) to retain the spool in its displaced position when the pressure falls in both circuits. In Fig. 8 the spool movement operates a switch 19a or 19b to illuminate a lamp 21 and energize a solenoid 64a or 64b to move a valve spool 67 to cut off the faulty circuit upstream of a pressure accumulator 52 or 53 and a pressure distributor E which may be integral with the casing of the indicator 1. The restrictor is preferably one or several spaced discs 35 with apertures 36 (Fig. 5) held in the duct a or b by a hollow plug 32a.
Patent GB-1419982-A (GB)
Title: Metallic compositions
IPC: C22C1/05
Filed: 1973-01-12
Abstract: 1419982 Sintered carbide composition TELEDYNE INDUSTRIES Inc 12 Jan 1973 [14 Feb1972] 1846/73 HeadingC7A A sintered carbide composition consists of a carbide of the form (Ti x Mo y ) C z  with the mole fractions for Ti and Mo (x and y) and the value for Z being such that the composition falls within the area EFGHE in Fig. 1, bound by 5-25 wt per cent (based on the total composition) of an iron group metal (FeCoNi). The Ti may be partially replaced by up to 20 mole % thereof of V or by up to 30 mole % of one or more of Hf, Nb or Ta; the Mo may be partially replaced by up to 50 mole % there of of W or by up to 10 mole % of the Mo + W content of Cr; and the C may be partially replaced by up to 25 atom % thereof of N. The composition may be coated with wear resistant carbide or nitride refractory metal compositions.
Patent GB-122889-A (GB)
Title: Improvements in Miners' Safety Lamps.
Inventor: PICKETT FREDERICK ABRAHAM
IPC: F21L23/00
Filed: 1918-02-05
Abstract: 122,889. Pickett, F. A. Feb 5, 1918. Miners' safety lamps.-In a miner's safety lamp having two glasses between which the air for combustion passes downward to the burner, the air-inlets are protected from dust &c. by a deflector ring B fitted between the bonnet and the main gauze C, and by an annular ring K<1> on the upper end of a holder K fitting between the gauze and the combustion tube J. Air entering through the inlets A passes inwards through the gauze below the parts B, K<1>, thence through apertures P, Q in the holder K, downwards between the glasses 0, O<1>, through the gauze-covered holes D in the locking-ring F, and between this ring and the flame-intensifier H, and also through holes G in the intensifier to the flame. The bottom of the holder K is formed with a seat for the upper end of the outer glass O<1>, and the locking-ring F is formed with seats for both glasses, as shown, the seats being provided with asbestos rings L, M, N. The combustion-tube J is formed near its lower end with corrugations, over which the bottom ring of the holder li is sprung to secure the holder in position. The bottom end of the combustion tube is slightly smaller in diameter than the inner glass 0, and its lower edge is notched, as at R, so that it can be sprung on to the glass. The intensifier H is similarly connected to the top of the oil well. The top of the locking-ring F is circular to enable the burner to be turned to any position without risk of smoking the glass and its outer surface is screw-threaded to receive the top of the lamp; its base is formed with notches or teeth T for engagement with a locking-pin. The intensifier is shaped as shown, to provide an air-passage between it and the locking-ring,'and its top is made of rectangular section, so that it fits over the top of the burner and thus prevents rocking.
Patent GB-1045721-A (GB)
Title: Ion transport pump
IPC: H01J41/18
Filed: 1964-01-17
Abstract: 1,045,721. Ion pumps. STANDARD TELEPHONES & CABLES Ltd. Jan. 17, 1964 [Jan. 24, 1963], No. 2173/64. Addition to 1,031,766. Heading H1D. A vacuum pump has a main pumping stage including opposed first and second secondary electron emissive surfaces 6 and 7 having an axis of symmetry therebetween and the surface 7 being centrally apertured at 10; electrodes 13, 11, 12, 17 and 33 providing a region of high potential adjacent the first surface 6 and a region of low potential beyond the second surface 7 and concentrating electrons emitted by either surface along the said axis; and an outlet 3 from the region of low potential for connection to a backing pump. Electrons from the cathode 33 are attracted through the aperture 10 by the anode 13 and oscillate along the axis between the surfaces 6 and 7 before being finally collected by the anode. Concentration of the electrons along the axis may be assisted by a solenoid 22. Gas from a vessel connected to the input 2 is ionized. The ions are attracted through the aperture 10 to the cathode 33 where they are neutralized and scavenged by the backing pump. An auxiliary pumping stage comprising an anode 27, apertured electron emissive surface 26, and solenoid 35 may be interposed between the surface 7 and cathode 33. The first emissive surface 31 of this stage may be secured directly around the aperture 10, as shown, or Fig. 3 (not shown), may be spaced from the rear of surface 7, an annular thermionic emitter 52 being located in the space. Electron multiplication may be enhanced by using the multipactoring circuit described in the parent Specification.
Patent GB-584832-A (GB)
Title: Improved insulator compound for electric cables and the like
IPC: C08L11/00
Filed: 1945-01-27
Abstract: An insulating composition for electric cables, particularly for use in aircraft operating at high altitudes, comprises polymerized chloroprene, 1-20 per cent. of its weight of a hydrocarbon wax, an age-resistor, and an antioxidant, the wax and age-resistor having blooming properties whereby the anti-oxidant is continually conveyed to the surface of the composition to renew the protection in case of damage.  The wax is preferably of high molecular weight having at least 24 carbon atoms in the molecule. The age-resistor may be a polymerized trimethyldihydroquinoline, and the anti-oxidant a diarylethylene diamine, these substances being each present in quantities of 1-5 per cent. of the weight of the chloroprene. Fillers such as clay or diatomaceous earth, colouring-materials such as carbon black and iron oxide, plasticizers such as stearic acid, and curing-agents such as zinc oxide and magnesium oxide, are also added.  A preferred composition consists of 100 parts by weight of neoprene, 2.5 parts of diphenyl ethylene diamine, 2.5 parts of trimethyldihydroquinoline, 10 parts of Syncera wax, 5 parts of zinc oxide, 4 parts of magnesia, 0.5 parts of carbon black, 1 part of iron oxide, 100 parts of clay, and 1 part of stearic acid.
Patent GB-750829-A (GB)
Title: Electric switching device with switches arranged in series for power interruption and voltage isolation
IPC: H01H33/12
Filed: 1954-01-25
Abstract: 750,829. Gas-blast circuit breakers. AKT.-GES. BROWN BOVERI & CIE: Jan. 25, 1954 [Jan. 24, 1953], No. 2186/54. Class 38(5) In a switching device comprising a. power-interrupting circuit-breaker b inseries with a voltage isolation switch s, each of which has at least one gas-operated, self-closing nozzle contact, the gas for the switch and breaker operation is supplied through separate channels. Circuit-- breaker b and switch s have movable nozzle contacts f2, f12 and stationary contacts f1, f11, respectively, and are mounted On a gas container a by gas-conducting insulators d, e. On operation of the device, the electro-pneumatic valve g opens valve h, the gas then opening contacts f1, f2. and extinguishing the arc, valves h closing after a set time. Shortly before this, control valve i operates and allows the switch contacts f12, f11 to open, valve k, opening for a short time and then being closed by the gas pressure which is maintained while the switch is open. When the switch is closed the gas discharges through valve 'i. In another embodiment (Fig. 2, not shown) two breaks are provided for the breaker and switch and resistances are shunted across the former. In yet another embodiment (Fig. 3) the isolator s1, s2 is kept constantly under gas pressure by means of gas-conducting insulator e31, self-closing valves k11, k12 and control valve i12, i11 being provided.
Patent GB-1381491-A (GB)
Title: Electrode boiler
IPC: F24H1/22
Filed: 1971-01-18
Abstract: 1381491 Electrode boiler BRITISH RAILWAYS BOARD 10 Jan 1972 [18 Jan 1971] 2290/71 Heading H5H An electrode boiler has a plurality of electrodes 2, 3 mounted on the insulating base of a liquid flow channel, the base being made for example of polypropylene or ceramic. The base 1 may be rigid or flexible and may be foamed, perforated, or reinforced. Connectors 4, 5 are provided for connecting the interdigitated electrodes 2, 3 to a power supply. The base 1 and electrodes 2, 3 may form the floor of a housing of a cascade evaporator provided with an inlet and outlet for a stream of water and a steam vent. The base may be curved into a semi-cylindrical shape (Fig. 4, not shown) with the electrodes in the form of parallel strips partially embedded in the base. The electrodes may be formed of titanium coated with one or more metals of the platinum group. The semi-cylindrical base serves as a water channel. The electrode arrangement may be energized from a threephase supply.
Patent GB-695618-A (GB)
Title: Improvements in or relating to machines for winding electrical coils
IPC: H01F41/06
Filed: 1952-01-28
Abstract: 695,618. Winding electrical coils. UNIVERSAL WINDING CO. Jan. 28, 1952 [Feb. 14, 1951], No. 2334/50. Class 120(ii) The machine of the present invention for winding electrical. coils having sheet insulating material S between layers of wire W is substantially similar to that of Specification 404,690, to which reference is made, but the device 225 for carrying and delivering the cut strip of insulating material S to the winding head 15 and the operating means for that device are modified as shown in Figs. 1 and 3. The front edge of the insulating material fed by co-operating rolls 115, 125, enters freely between rollers 246, 256 on the device 225, this latter being positioned in its rearward position wherein adjustable bolts 232 are in contact with lower plates 268 on the machine bed to lift spring-urged rods 240 to separate the top rollers 246 from the bottom rollers 256 After a predetermined length of material S has been fed by the rollers 115, 125, they are separated and stopped by a camoperated rocker lever 162. The cam 335 through linkage 332, 328 then rocks bellcrank levers 227, 228 forwards, the rollers. 246, 256 closing on the paper &c. strip and arms 230 being raised by a cam 294, through an arm 288, to press a cross-bar 237 against the rollers 256, to lock them against rotation, and thus clamp the strip. A cam-operated measuring rod 170 is then moved to draw a length of paper &c. through the rollers 115, 125 sufficient to wrap the coil and a cam-operated knifeblade 205:severs a sheet of paper from the strip. The rollers 115, 125 are now moved together to grip the strip material and the blade 205 and measuring rod 170 are raised to their inactive positions. The cam 294 now further raises the arms 230, and hence the delivery device 225, the upward movement thereof being limited by a cam 302 and arm 290, the cam 302 being so formed that the amount of lift is increased as the coil is being wound so that the several strips are correctly fed on to the growing coil. The cam 335 now moves the device 225 forwardly and presents the strip to the winding head. The spring-urged rods 240 are now lifted to move the rollers 256 out of contact with the locking bar 237 and the paper &c. sheet is drawn forwards, being governed by the rollers 246, 256, so that it is fed uniformly.
Patent GB-1413286-A (GB)
Title: Thiocarboxy esters and their use as herbicides
IPC: A01P13/00
Filed: 1972-01-18
Abstract: 1413286 Thiocarboxy compounds SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 16 Jan 1973 [18 Jan 1972] 2353/72 Addition to 1164160 Heading C2C The invention comprises compounds of the formula where X is F or Cl, Y is H or Cl and R is alkyl, cycloalkyl, alkenyl or aryl. The compounds may be prepared by converting the corresponding propionic acid to a derivative of the formula where Z is halogen, alkoxycarbonyloxy or imidazolo and reacting this derivative with a compound of the formula The compounds may also be prepared by hydrolysis of an acid salt of a compound of the formula
Patent GB-1177881-A (GB)
Title: Improved Etching methods and Compositions
IPC: C23F1/18
Filed: 1968-01-16
Abstract: 1,177,881. Etching. PHOTO ENGRAVERS RESEARCH INSTITUTE Inc. 16 Jan., 1968 [26 Jan., 1967], No. 2369/68. Heading B6J. An etchant for copper, copper alloy or nickel alloy photoengraving plates comprises an aqueous solution of ferric chloride, a compound selected from formamidine disulphide, substituted formamidine disulphide and salts thereof, a compound selected from thiourea, a dimer of thiourea, ethylene thiourea, substituted ethylene thiourea, cuprous thiourea chloride and mixtures thereof, and a modifier selected from phthalic anhydride, phthalimide phthalamic acid and compounds of the formula wherein X and Y are selected from -CN, ONH 2  and OH. The ferric chloride may be a 20 to 50% by weight aqueous solution, containing 0À25-10 grams per litre of formamidine compound, 0À25-10 grams per litre of the thiourea compound and 0À1-10 grams per litre of the modifying agent. Other substances which may be present are pyrogallol, 2,4-diaminophenol dihydrochloride, amidol, tannic acid, monochloroacetic acid, dichloroacetic acid, monobromoacetic acid, sodium acetate. The etchant may be applied to the plates by splashing, brushing or force flow.