baber/WOPTO huggingface dataset:
Patent GB-225890-A (GB)
Title: Improvements in and relating to electric vacuum discharge devices
IPC: H01J61/28
Filed: 1923-12-07
Abstract: 225,890. Gratze, E. V. Hayes-. Dec. 7, 1923. Vacuum tubes; low-pressure metallic-vapour a,pparatus. - In a high - tension discharge lamp containing carbon dioxide, nitrogen, hydrogen, or mercury vapour, a single auxiliary chamber containing a material which evolves the same gas as that in the tube is arranged contiguous to one of the electrodes, but is not normally influenced by current through the tube, and means are provided for generating a supply of gas, for instance, by passage of current through the auxiliary chamber, when the pressure in the tube falls. As shown, the auxiliary chamber b, containing gas-producing material, is mounted close to one electrode a<1>, and an external electrode c connected with the other electrode a<2> and is spaced from the chamber b by a small gap, which may be adjustable. When the vacuum hardens in the tube a, a spark bridges the gap and current passing through the chamber b causes gas to be evolved. In a modification, a heating coil is mounted around the chamber. In another modification, a U- shaped chamber containing mercury and a float has one limb of fine bore in communication with a gas reservoir. When the pressure of gas in the lighting tube is reduced, the float falls and allows gas to pass into the tube through plugs which are porous to gas or vapour but impervious to mercury. In a further modification, the chamber contains mercury and a ball or pin is rocked by hand so as to produce a spark which vaporizes the mercury. Specifications 21218/96, 9916/06, 1218/13, 8927/15, and 139,860 are referred to.
Patent GB-1458405-A (GB)
Title: Electronic musical instruments
IPC: G10H1/10
Filed: 1974-01-28
Abstract: 1458405 Electrophonic musical instruments NORLIN MUSIC Inc 28 Jan 1974 [20 Feb 1973] 03855/74 Heading G5J A chorus effect generator for electronic musical instruments uses different frequency synthesiser chips 14, 28, 52 for each octave. The ratio between the repetition frequencies of the input pulse trains differing slightly from two. The top octave 16 is directly derived from a clock 10, the second from the clock divided by two in a flipflop 20 and with the omission of a pulse now and then under the control of low frequency oscillator 34 which is synchronized to the clock by a D-type flip-flop 38. The low frequency and half clock signals C are applied to an exclusive OR 24. Each time the low frequency signal changes state the output 26 does not follow the signal C until a half-period has passed, thus omitting one half-clock frequency pulse for each cycle of the low frequency signal. A third synthesiser 52 similarly derives the third octave 54 to be not exactly half that of the second. In another embodiment, Fig. 3, not shown, the D-type flip-flops and separate oscillators are omitted, the other input of the exclusive OR being taken from an artistically suitable output of one of the frequency synthesisers.  A further embodiment, Fig. 4, not shown, uses two cascaded one -shots to insert extra pulses thus giving an octave with frequencies differing by less than a factor of two.
Patent GB-1088704-A (GB)
Title: A supply joint for electric cables
IPC: H02G15/24
Filed: 1965-01-28
Abstract: 1,088,704. Cable Joints. COMPAGNIE GENERALE D'ELECTRICITE. Jan. 28, 1965 [Feb. 4, 1964; Dec. 2, 1964], No. 3857/65. Heading H2E. The Figure shows a joint designed to permit the supply of oil to one section of an oil-filled cable with a central oil channel. As shown, the joint housing 21 is welded to the cable sheathing 3 and is provided with an oil supply point 25. The conductor 1 is held in a clamp 5 provided with a passage 6 to allow the oil to reach the joint housing. Around the insulation 2 of the cable from which the sheathing has been removed are alternately conducting and non- conducting washers 12, 13, provided with passages parallel to the cable axis. These washers are held between rings 11, 10, one of which is welded to the cable sheath and the other forced on to the washers by a screw arrangement mounted on the clamp. Surrounding the joint are metallic screens 9, 18 between which is paper insulation 17. Sealing rings 8, 19 separate the oil from that in the next section of cable. The oil flow is from the cable, through the holes in the washer and into the housing proper. The washers may vary in size internally and externally along the cable axis and sets of washers of different sizes may be used. The conducting washers may be of paper coated with graphite or carbon black or of a semi-conductive plastics.
Patent GB-123604-A (GB)
Title: Improvements in or relating to the Heels of Airships or the like.
IPC: B64B1/58
Filed: 1918-03-05
Abstract: 123,604. Priors Aerial Patents, Ltd., and Prior, E. G. March 5, 1918. Aerostats; framework.-A keel for air-ships or the like is constructed of a series of laminated frames of veneer, duralumin, &c. so arranged relatively to each other that the stresses throughout the keel will be resisted equally in all directions. Each frame b is made of quadrilateral form having two sides b<1>, b<2> parallel but of unequal lengths, and the frames are alternately reversed as shown, with the inclined sides b<3>, b<4> in contact and the parallel sides b<1>, b<2> adjacent the longerons a. The frame may be connected together and to the longerons by glueing or by a wrapping of veneers, metal, &c., with or without dowel pins &c. The longerons may be laminated and may be arranged with the grain running toward the centre of the keel.
Patent GB-143307-A (GB)
Title: Improvements in or relating to tyres for vehicle wheels
IPC: B60C15/02
Filed: 1919-02-18
Abstract: 143,307. Lees, E., Ridsdale, H. W., and Hirst, T. H. Feb. 18, 1919. Spring wheels with continuous outer resilient suspension ring.-Relates to tyres of the type set forth in Specification 28233/03, and consists in provided means whereby such tyres may be attached to rims of ordinary construction. The tyre B of rubber and canvas is provided with an endless metal band C of concave cross-section, and the edges B' are retained in the rim A by security bolts A<1>. Metal tubes J<x> carrying wire rings E are embedded in reinforced extensions D of the tyre, gaps D' accommodating clips F secured to bolts G. The bolts extend through brackets I bearing on the inner surface of the rim, and nuts H are provided to adjust the radial tension. One of the tubes J<x> covers the free ends of the wire ring E, forming a socket with space to permit contraction of the ring. In modifications, the beads B<1> may be of the usual type and fit within the turned-over edges of the rim. In the form shown in Fig. 11, the beads are held in position bv a spring compression device K, the ends being slotted to engage with the wire of the bead. Instead of, or in addition to, the radial bolts G, the free ends of the rings E, which may each be in several sections, may be oppositely screw-threaded to engage in nuts, so that, on rotating the nuts, the radial tension may be adjusted. Leather or fabric straps may be used for producing the radial tension.
Patent GB-744969-A (GB)
Title: Improvements in or relating to the manufacture of electrical capacitors
IPC: H01G13/06
Filed: 1951-05-02
Abstract: 744,969. Capacitors. DUBILIER, W. April 30, 1952 [May 2, 1951], No. 4138/55. Divided out of 744,893. Drawings to Specification. Class 37. [Also in Group XXII] The value of an electrical capacitor of the kind manufactured by burning away or evaporating a zig-zag or sinuous line of progressively increasing pitch on a metal-coated strip is adjusted by further burning away or evaporating a narrow band of the coating lying substantially parallel to the length of the strip and intersecting at least part of the zig-zag or sinuous line. The narrow band is burned away by a roller similar to that shown at 50 in Fig. 7 of Specification 744,893, the switch 45 being modified to include only one contact segment.
Patent GB-999177-A (GB)
Title: Improvements in or relating to road vehicles
Inventor: HOLROYD LESLIE MAXWELL
IPC: B62D7/14
Filed: 1963-02-01
Abstract: 999,177. Steering vehicles. B.R.D. CO. Ltd. April 30, 1964 [Feb. 1, 1963], No. 4151/63. Heading B7H. In a vehicle, all the wheels of which are driven and steerable, the rear wheels being lockable parallel to or at an angle to the longitudinal vehicle axis. An interlock is provided to prevent use of other than low or reverse gears unless the rear wheel steering is locked. Preferably the front wheels and rear wheels are driven by two independent motors. The rear wheels are locked when end 31 of bell-crank lever 27 engages detent 28, 29 or 30 of arm 20, preventing movement of lever 35 and wheels 14. Detent 29 holds the wheels 14 in a straightahead position and detents 28, 30 hold the wheels turned through 45 degrees. When the rear engine ignition is switched on, releasing solenoid lock 17, handle 18 may be pulled actuating Bowden cable 19 to close together the arms 20, 21, releasing end 31 from detent 29 and engaging the centre pivot 26 of bell-crank 27 between detents 23, 24 so that steering movements of the front wheels are transmitted to the rear wheels. Closing of the arms 20, 21 draws shields 40, 41 over the gear-change gate, limiting gear lever movements to bottom and reverse gears (Fig. 3, not shown).
Patent GB-1348000-A (GB)
IPC: G01R15/12
Filed: 1971-02-08
Abstract: 1348000 Distance measuring apparatus HEWLETT-PACKARD CO 19 April 1971 4174/73 Divided out of 1347999 Heading G4A A distance measuring apparatus comprises a laser interferometer 11 which produces a series of digital position indications NM, computation means which average n indications using the formula = the average digital position indication, and means for displaying ND. The indications come from a two frequency A.C. laser interferometer connected to a reversible counter 12 which is sampled periodically. The indications NM pass via shift register 41 and adder 45 to accumulator 46 where they are totalled. After n indications, the total is transferred to buffer store 28 of the display means where it is divided by n by shifting, n being made to be a power of 10. The process is then repeated so a new display appears every n indications. When NM is changing rapidly, the averaging can be overridden and NM displayed directly. This Specification has common subject matter with parent Specification 1,347,999.
Patent GB-1533914-A (GB)
Title: Salts of the monophosphoric acid ester of 2,2'-dihydroxy-3,3',5,5'-tetrabromobiphenyl
IPC: C07F9/12
Filed: 1976-02-03
Abstract: Novel magnesium or calcium salts of the monophosphoric ester of 2,2'-dihydroxy-3,3',5,5'-tetrabromobiphenyl are prepared from the monophosphoric ester of 2,2'-dihydroxy-3,3',5,5'-tetrabromobiphenyl or one of its alkali metal salts and from magnesium or calcium salts. The alkaline earth metal salts which have been prepared are distinguished by not only high activity against liver flukes but also particularly advantageous stability properties.
Patent GB-1485190-A (GB)
Title: Process for the production of films and coatings
IPC: C08G18/80
Filed: 1975-01-31
Abstract: 1485190 Polyurethane coatings BAYER AG 31 Jan 1975 [1 Feb 1974] 4305/75 Heading B2E [Also in Division C31  Substrates, e.g. metals, ceramics, glass fibres and fabrics and particularly copper wire may be coated with a polyurethane-forming coating substance which is preferably solvent-free .but may contain up to 25% by weight of solvent and comprising a combination of a polyisocyanate whose isocyanate groups have been blocked by aliphatically and/or cycloaliphatically bound hydroxyl groups and a compound which contains OH groups, the substrate being coated at a temperature from 20 to 250C at which the coating substance has a viscosity of not more than 40000 cP and is subsequently heated to a temperature at which the blocking agent is split off and final crosslinking takes place. Wire lacquering may take place by the known methods of dipping, roller application or suction felt application. Examples describe the preparation of insulated copper wire as well as the coating of metal sheets.
Patent GB-104406-A (GB)
Title: A Flexible Metal Strip with Integral Attachment Spikes.
Inventor: PARKER JOSEPH ARTHUR
IPC: A43C13/02
Filed: 1916-03-24
Abstract: 104,406. Parker, J. A. March 24, 1916. Spiked plates and strips.-- The spikes c, d of a metal strip which may be used as a boot protector are made integral with the strip, and are separated by a strip x about half the normal breadth of the strip. The spikes may be set for a slight oblique penetration. The Provisional Specification states that the strip may be used for box-binding, as a beltfastener, or for reinforcing leather belting.
Patent GB-477197-A (GB)
Title: Apparatus for the continuous decomposition of vegetable and animal fats into pure fatty acid and concentrated glycerine without addition of chemical catalysts in three successive pressure stages
IPC: C11C1/04
Filed: 1937-02-15
Abstract: <PICT:0477197/III/1> In a continuous process for splitting fats by water alone, the apparatus is divided into a high pressure zone where the splitting is effected, a medium pressure zone where the glycerine water and most of the fatty acid are evaporated, and a low pressure zone where the residual acid is evaporated.  Preferably the temperature is highest in the first zone, lowest in the last. Suitably, a mixture of water and fat in an emulsifier 1 is forced by a pump 2 through tubes 3 at 30--100 kg./cm.<2> and 200--280 DEG  C., then through a reducing valve 4 and through tubes 5 at 2--20 kg./cm.<2> and 120--210 DEG  C., and finally through a pressure reducing valve 6 to a low-pressure evaporator 7 and into low pressure condensers 9, 11, 13, 15; uncondensed gases are withdrawn by an exhaust 17.  Oil not split is returned to the emulsifier from a collector 8, sweet water from a collector 16.  The tubes 3 are heated directly by a furnace fire, while the tubes 5 are arranged in the flue.
Patent GB-764941-A (GB)
Title: Improvements in or relating to methods of and arrangements for facilitating starting internal combustion engines
IPC: F02N99/00
Filed: 1955-02-15
Abstract: 764,941. Facilitating starting turning gear. CHRISTIANSEN, H. Feb. 15, 1955 [Feb. 16, 1954], No. 4485/55. Classes 7 (2), 7 (3) and 7 (5). In a method of facilitating the starting of a main engine 22 by means of an auxiliary internal-combustion engine 19 with pre-heating of the combustion air for the main engine 22, the heat derived from the auxiliary engine 19, other than or in addition to its waste heat, is supplied to the combustion air of the main engine 22. The auxiliary engine 19, which may be of the reciprocating or turbine type, drives an energy converter 20 which is connected by a conduit 23 to the intake manifold 21 of the main engine 22 whilst a branch 25 from conduit 23 leads to a casing 26 around the main engine; the branch 25 is controlled by a valve 24; another valve, not shown, may be used to connect to manifold 21 to and from atmosphere. The casing 26 normally guides cooling air from a blower 27 around the cylinder of the main engine but the preheating air may either exhaust from the casing to atmosphere or return to the intake of the converter 20 by a conduit 28 depending upon the positions of valves 29, 33 and 34. With the latter and the valve 24 in the positions shown in full lines the temperature of the air flowing around the main engine is increased by both the converter 20 and the waste heat from the auxiliary engine 19 whereupon the valve 24 is moved to admit heated air into the manifold 21 ; at the same time a flywheel 30 driven by the auxiliary engine is coupled by a clutch 31 to the crank-shaft 32 of the main engine and as soon as the latter starts the clutch is operated to disconnect the flywheel. The main engine may be supplied with heated combustion air during normal running to increase the engine output. The operation of all the valves may be automatic whilst the auxiliary engine exhaust gas may be used to heat the combustion air of the main engine and/or to heat the main engine itself by suitable arrangement of the exhaust pipes of the auxiliary engine. The combustion air of the main engine may be heated by locating in the intake conduit either an energy converter, which transforms the output of an auxiliary engine into heat, or both an engine and a converter ; the converter is driven from the auxiliary engine through a clutch and gear transmission.
Patent GB-724940-A (GB)
Title: An improved device for adjusting the angle of inclination of lamps of vehicles
IPC: B60Q1/115
Filed: 1953-02-18
Abstract: 724,940. Dipping light-beams of vehicle lamps. BOSCH GES., R. Feb. 18, 1953 [Feb. 20, 1952], No. 4495/53. Class 75 (2) and 75 (4). Means for adjusting the angle of inclination of the light-beam of a vehicle lamp comprises an adjusting member deflectable by temperature changes to adjust the direction of the light-beam and responsive to a heating current, and a switch for controlling said heating current and adapted to be closed when the deformation, of a vehicle spring exceeds a predetermined amount. In the embodiments illustrated a concave reflector 10 in a headlamp 5 is tilted to dip the light beam when the rear of the vehicle is loaded to such an extent that a contact carried by a rear spring (not shown) is moved into engagement with a contact on the vehicle frame to complete an electrical circuit from a battery through a resistance 15 wound about the middle of a bimetallic strip 12. The latter is secured at one end to a ring 20, in which are mounted pivot pins 13 on the reflector 10, and at the other end is attached to a lug 21 on an annular lampholder socket 22 secured to the neck of the reflector, so that on energization of the resistance 15 the strip 12 becomes heated and' 'bends to tilt the reflector 10 by an amount limited by the engagement of the lower edge thereof with a fixed lug 26. An alternative embodiment is described in which the bimetallic element tilts the lampholder instead of the reflector.
Patent GB-525011-A (GB)
Title: Improvements in pickling steels and baths therefor
IPC: C23G1/08
Filed: 1939-02-11
Abstract: 525,011. Cleaning metals. GROVES, W. W. (Monsanto Chemical Co.). Feb. 11, 1939, No. 4531. [Class 82 (ii)] Steels and steel alloys, particularly stainless steels, are pickled in a bath free from nitric acid and comprising ferric ions and fluoride ions, for example, ferric-sulphate and hydrofluoric acid, ferric fluoride and sulphuric acid, ferric fluoride alone, ferric fluoride and hydrofluoric acid, ferric sulphate and sodium fluoride with or without sulphuric acid, ferric sulphate, calcium fluoride, and sulphuric acid, or ferric sulphate and sodium hydrogen fluoride. A preferred solution contains 5-30 per cent. of ferric sulphate and 2 - 6 per cent. of hydrofluoric acid. The treatment may be preceded by pickling in an ordinary pickling bath such as sulphuric acid, and this preliminary treatment may be electrolytic.
Patent GB-1147387-A (GB)
Title: Apparatus for aging a cathode ray tube phosphor screen
IPC: G06V10/10
Filed: 1967-01-31
Abstract: 1,147,387. Cathode-ray tube circuits; transistor threshold circuits. INTERNATIONAL BUSINESS MACHINES CORP. 31 Jan., 1967 [7 Feb., 1966], No. 4572/67. Headings H3T and H4T. In an arrangement for compensating for selective ageing of the phosphor screen of a cathode-ray tube (e.g. a tube employed as a scanner in a character recognition system in which a fixed sub-area of the screen is repetitively scanned and therefore aged more than the remainder of the screen) the beam is scanned in a raster occupying the entire screen area and means responsive to the intensity of the light produced is utilized to control the beam current such that it has a relatively higher value when the intensity is above a predetermined level and a relatively lower value when the intensity is below this level. As shown, a photo-multiplier 10 (Figs. 1 and 2), supplies a voltage directly proportioned to the intensity of the light from the screen of tube 15 to the parallel inputs of transistors amplifier stages T1, T2 only one of which can be conductive at any one time and the constants of which are such that T1 attenuates the input signal by a factor of 20 to 1 whilst T2 introduces an attenuation of 2 to 1. The output from T1 or T2 forms the input to a differential amplifier 30 connected to an averaging circuit 40 which feeds-back a signal to the collector T3 such that the output of the collector of T4 is either greater than zero or less than zero depending, respectively, on whether the input is greater or less than the average signal level. The output from 30 is fed via resistor 51 to a limit detector 50 comprising transistors T6, T7 in a differential amplifier configuration operating as a switching network, the operation being that when the base of T3 is more positive than the base of T4, T6 becomes conductive and the collector thereof is considered to be at the binary zero level whereas when T3 is less positive than T4, the collector of T6 is at the binary one level, the collector of T7 being at the one or zero level respectively. When T6 and T7 are conducting T1 and T2 are non-conducting and vice versa. When T6 is non-conducting the connection via Zener diode D2 causes T9 to conduct and change the bias on the control grid of tube 15 such that the beam current is ten times as great as when T6 is conducting and T9 non-conducting. Thus, by increasing the beam current during the scanning of the comparatively unaged screen areas the ageing of the screen as a whole is brought to a uniform level.
Patent GB-1213617-A (GB)
Title: Discharge flash tube arrangement
IPC: H05B41/32
Filed: 1969-06-28
Abstract: 1,213,617. Electronic flash apparatus. FRANKE & HEIDECKE G. m. b. H. Jan.28, 1969 [Feb.1, 1968; Feb.7, 1968], No. 4584/69. Heading G2A. [Also in Division H2] A photographic discharge flash tube arrangement comprises a plurality of flash units (four shown), each with its own ignition circuit, and a single ignition impulse generator for continuous successive ignition of the flash units in accordance with a periodically repeated impulse programme. The flash intervals are made so short that they are imperceptible as such, individual flashes appearing as a single flash, and a known integrating photoelectric device, receiving flash light reflected from the subject being photographed, is used to interrupt the ignition impulse sequence when a certain preselectable threshold value is reached. Figs. 1, 2 (not shown) relate to flash tube circuits, each having two flash tubes operating alternately. Figs. 4, 5 (not shown) relate to ignition circuits for the flash tubes of Figs. 1, 2. A storage capacitor (21À31) is charged up before the beginning of the flash exposure, and the capacity thereof is great enough to be sufficient for the total ignition impulse sequence. Fig. 6 (not shown) relates to a circuit having three flash tubes the ignition circuits of which are controlled by an impulse distributer (58) consisting of a known ring selector circuit. In Fig. 7 (not shown), a photo-electric limiting system is described. Figs. 8, 10 (not shown) also relate to three flash tube arrangements, the former having separate transformers for each flash tube and the latter three additional switching tubes.