baber/WOPTO huggingface dataset:
Patent GB-327837-A (GB)
Title: Improvements in or relating to electric current transformers and measuring instruments
IPC: H01F38/30
Filed: 1929-03-13
Abstract: 327,837. Shotter, G. F., and Elliott Bros. (London), Ltd. March 13, 1929. C u rrent and pressure meters. - A current transformer for use with a rneasuring instrument has an adjustable gap in the iron circuit, so that different ranges of current may be measured, the iron core being in separable parts, for example hinged together, so that the core may be placed around a main conductor. The core is built up of laminae clamped in an aluminium or other non- magnetic casing of U-section and is in two parts 1, 2 hinged together by a pin 3 passing through parts 4, 5 of non-magnetic material extending from the casing, so that the pin is offset from the core. By this means a gap 7 in the magnetic circuit in addition to the main gap 6, is formed when the parts 1, 2 are opened out, the projection 14 being bifurcated and the projection 15 moving into it. A magnetic shunt is thus formed which increases in value as the parts are opened. The projections 14, 15 may be parts of the laminations or separate members. The secondary winding is in two parts 18, 19 mounted on the divided and hinged member 8. A spring 13 is provided for normally maintaining the parts 1, 2 closed, and handles 11, 12 permit them to be opened. The gap between the members 1, 2 in the closed position is measurably adjusted by means of a screw 27, on the part 2 abutting against a hard steel stop 26, Fig. 5, on the part 1. The screw 27 has a cylindrical part 29 in which are depressions 30 filled with materials of different colours. Each of these, when brought opposite a hole 31, indicates that the gap 6 is of the correct size to measure a particular range of current. Sheaths of insulating material 34 prevent contact between the main conductor and the core. In a modification, the magnetic shunt, the handles 11, 12, and the spring 13 are omitted and the hinge is not offset, the parts 1, 2 being held in the closed position by a hinged stirrup embracing both parts and having a U- shaped spring to press them together. A wound primary may be connected into the conductor carrying the current to be measured. A single high-resistance instrument may be used for measuring current or voltage, switch-controlled resistances being inserted in the latter case. The transformer may be employed in connection with rectifiers to operate direct-current permanent magnet instruments. The measuring instrument may have a reference point for the indicator, instead of a graduated scale, in which case the gap in the transformer core is adjusted to cause the pointer to coincide with this mark, the current being indicated by the size of the gap. According to one of the Provisional Specifications, the core is held in the closed position by thumb screw on a pin swivelled on one part and passing through a gap in the other, also the screw 27 has a pointer and a scalp to indicate the size of the gap.
Patent GB-550475-A (GB)
Title: Improvements in coil tube water or other liquid heaters
IPC: F24D1/00
Filed: 1942-06-18
Abstract: 550,475. Tubular heat-exchangers. ELDERTON, A. J. June 18, 1942, No. 8365. [Classes 64 (iii) and 123 (ii)] A water heater or steam generator consists of concentric tubular coils E, F in a casing D inserted in the exhaust pipe A of an internal combustion engine. The coils are connected to inlet and outlet junction boxes J, M. A tube P inside the coils contains a damper Q which controls the relative quantities of gases passing through and around the coils.
Patent GB-398870-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N3/34
Filed: 1932-03-21
Abstract: 398,870. Television. FERNSEH AKT.- GES., Goerzallee, Zehlendorf, Berlin. March 21, 1932, No. 8375. Convention date, March 27, 1931. Addition to 356,565. [Class 40 (iii).] In the parent Specification the apertures in a scanning disc or band trace overlapping scanning lines and are such that the sum of the dimensions of the overlapping portions of the scanning apertures, measured in their direction of movement, is the same in all zones. According to the present invention, the image of a stationary aperture is traversed over the object or screen by moving mirrors, the images having the same characteristics as the apertures in the parent Specification.
Patent GB-546449-A (GB)
Title: Improvements in electrically heated kilns
IPC: H05B3/62
Filed: 1941-07-03
Abstract: 546,449. Electrically heated kilns. MOORE, B. J., and MOORE, B. C. July 3, 1941, No. 8379. [Class 39 (iii)]  The electric heating elements are placed in position and removed through openings 14 in the side walls of a kiln. Each side wall consists of brickwork 15, heat insulating bricks and/or blocks, or diatomaceous earth, 16, 17, and fireclay blocks 18. Each heating element 19 comprises a grid 20 formed of strip .metal placed on edge, with further strips 30 on the terminal portions which project through the wall of the kiln. The elements rest on the blocks 18, which may be flat or ribbed, or the elements may be provided with feet to raise them above the blocks. The openings 14 are sealed by fireclay blocks 22 with handles 23, and by blocks 24 of diatomaceous earth having recesses in their lower edges for the current conductors. The blocks 22, 24 may be wrapped with paper containing china clay which leaves a dressing of china clay after burning. The blocks 24 may be replaced by powdered kieselguhr, slag wool or asbestos, with outer retaining blocks. Groups of such resistances may be provided, and also a spare group which may be connected up if required.
Patent GB-555886-A (GB)
Title: Improvements in and relating to reinforced concrete ships or like structures
IPC: B63B3/26
Filed: 1942-06-19
Abstract: 555,886. Reinforced concrete. WILLIAMS, Sir E. O. June 19, 1942, Nos. 8469 and 8957. [Class 20 (iv)] [Also in Group XXXIII] A reinforced concrete structure of the girder type such as a barge or ship is constructed so as to render vital parts of the structure proof against injuries and biplanal stresses. The concrete is cast upon a reinforcing skeleton, such as shown in Figs. 6 and 9 for a barge, composed of units 1, 6, 12, 18 consisting of upper and lower flange members such as the horizontal parts of a pressed steel joist 2 of double T section with connecting web 61, Fig. 23, which may be formed of non- uniform cross-section to facilitate binding of the concrete and may be formed with apertures 24 having flanged rims 65. The web portions of the rails 2 are also formed with apertures 3, Fig. 6 and 9, to receive the reinforcing rods 4. After the joists 2 for the bottom of the barge or ship have been set up the joists 6 for the sides 5 are secured to the joists 2 by welding, and gussets 7 and a vertical plate 8 are secured to the joists 2, 6 and further reinforcing rods 10 are placed in position. The deck structure 11, and capping plate 22, and the coaming 17 are built up in a similar manner. The concrete is now cast with the aid of moulds 51, Fig. 15, of boarding or metal secured to battens 52, 53 clamped to the joists 2 by a fixed metal clip 54 and an adjustable clip 55. The concrete is cast so that its outer surfaces are coplanar with the outer surfaces of the joists, so that the exposed metal prevents the spalling of the concrete by knocks 111. The barge, Fig. 6, is provided with a steel fender 16 and strengthening gussets 15, and it is fitted with a steering vane and bulk heads formed in the same manner as the other parts, and other parts such as the hatch covers and concrete ceiling 31 for the bottom shell 1 follow normal practice. In Fig. 11 the invention is shown applied to a double bottom ship, and the bottom shell 1 and inner shell 41 are made of concrete bound by rolled steel as described, and keelsons 44 of reinforced concrete are arranged between the shells 1, 41 to form a ballast tank 45. The rest of the ship is formed similarly of the reinforced concrete sections 5, 11, 17 with sloping shells 47, and the bulk head 25 is formed of concrete and rolled steel joists 26 spaced at the same intervals as the bottom keelsons 44 and the bulkhead is completed by reinforced concrete prepared according to normal practice or as described in connection with the other sections.
Patent GB-1509352-A (GB)
Title: Four-stroke reciprocating spark-ignition internal combustion engine with fuel injection into an ignition chamber
IPC: F02B1/04
Filed: 1976-03-03
Abstract: 1509352 Pre-combustion chamber IC engines DAIMLER-BENZ AG 3 March 1976 [8 March 1975] 8546/76 Heading F1B In a four-stroke engine the pre-combustion chamber 3 has a volume between 0À1 and 0À3 of the total compression volume at T.D.C., e.g. 0À2, and the passage 4 has a volume between 0À01 and 0À25 of this compression volume, e.g. 0À075. The injector 5 provides between 2% and 10% of the maximum full load fuel quantity, e.g. 4%, commencing during the induction stroke, e.g. between 20 and 120 degrees before B.D.C. The diameter of the passage 4 may be between 0À3 and 0À7 of the diameter of the spherical chamber 3, e.g. 0À5. The injector 5 may inject a constant quantity of fuel or a quantity decreasing with increasing engine load and/or speed. A lean mixture produced by a carburetter or injection system is supplied through a valve to the main combustion chamber 2. The axes of the injector 5 and sparkplug 7 are at an angle between 60 and 90 degrees. The chamber 3 may be a swirl chamber and the injector axis may be parallel but offset from the axis of passage 4 to spray fuel on to the wall of the chamber. The engine compression ratio may be up to 14.
Patent GB-526481-A (GB)
Title: Automatic radio-guiding systems for vehicles
IPC: G05D1/02
Filed: 1939-03-17
Abstract: 526,481. Automatic control systems for aircraft &c. STANDARD TELEPHONES & CABLES, Ltd. March 17, 1939, No. 8560. Convention date, April 6, 1938. [Class 38 (iv)] Steering.-Automatic piloting equipment is subject to the control of a radio beam transmitter of the kind in which characteristic signals are transmitted on each side of a directional channel. A device responsive to these signals, to indicate whether the vehicle is to right or left of the channel, operates, in such a condition, to transfer control from the automatic pilot to the device so as to return the vehicle to the channel. After entering the channel a pilot may operate a switch connecting the back contacts of two relays in series with a circuit for the actuation or the directional gyroscope or course repeater. These relays are selectively controlled by right and left contacts of the device referred to and their main contacts operate a turning relay, and open other back contacts to render the gyroscope inoperative. The turning relay may be electrical, pneumatic, hydraulic or mechanical. The Figure shows an arrangement in which the device 4 sensitive to the marginal signals of the beam channel controls relays R1, R2 or the equivalent operating solenoids E1, E2 attracting an arm P normally centralized by springs 16 in relation to the gap between contact segments C1, C2 operated by the course repeater so that the turning relay 12 is operated by the device 4 instead of the course repeater when the relay 4 operates. The solenoids E1, E2 may operate the contacts C1, C2 and the course repeater the arm P. Photo-electric cells may replace the contacts Cl, C2 or the contacts of the device 4. To deal with drift a clock mechanism may adjust the course setting or the mechanism sensitive to angular deviations of the vehicle axis continuously as soon as the vehicle enters the beam and a meter may record the successive operations of relay R1 or R2 to stop this adjustment after a certain number of departures from the beam channel. If the characteristic signals of the beam are intermittent a time delay device may be inserted in series with the relays R1, R2 and may be an electro circuit or an electro mechanical device. The relays R1, R2 should be made ineffective after they have effected a maximum of turning such as 15 degrees, a time relay may be employed for this but the arrangement shown in the Figure has this characteristic inherently. The change in response sensitivity of the relay 4 (effective width of directive channel) as the transmitter is approached is neutralized by clock mechanism which may be set in operation, by the relay 4 or by the pilot. A similar device may reduce the permitted turning angle progressively as the transmitter is approached.
Patent GB-273390-A (GB)
Title: Improvements in springs for wheeled vehicles
IPC: F16F1/18
Filed: 1926-03-30
Abstract: 273,390. Barley, R. W. H. March 30, 1926. Laminated springs of the kind in which subsidiary leaves are provided above or below or both above and below the main leaf and in which connecting links are pivotally hinged to the ends of the subsidiary leaves, have each pair of links located a short distance from the end of the leaf to which it is hinged and the extended part beyond the leaf tapered. In the construction shown in Figs. 1, 3 and 4, in which subsidiary leaves are arranged in pairs one above and one below the main leaf a, lugs b, fcrmed a short distance from the ends. are drilled to receive pins e and tubular distance tubes d connected by links c which may be waved to render them slightly elastic. The lugs b may be split at b<1> to avoid rigidity of the leaf. In a modification, subsidiary leaves on one side of the main leaf are connected to floating shoes on the other side.
Patent GB-141034-A (GB)
Title: Improvements in handling and manipulating tools
IPC: B60B29/00
Filed: 1920-03-24
Abstract: 141,034. Schmertz, L. R. March 28, 1919, [Convention date]. Holding and picking-up tools.-A hand-tool, particularly for use. in manipulating wheels and tyres, comprises a pair of hooked arms 3 pivoted on extensions 7 of the handle 2, stop-flanges 6 being formed on the lugs 7, as shown. When not in use, the arms 3 may be folded over the handle, as described in Fig. 2.
Patent GB-964068-A (GB)
Title: Process for the manufacture of fish preserves
IPC: A23B4/00
Filed: 1963-03-05
Abstract: The white meat of large fish e.g. coalfish, pollack, cod, ray, halibut &c. is preserved by making parallel cuts along the cleaned and filleted fish (laid out flat) down to a lower layer of meat or skin which is left intact to hold meat together, and the meat is then treated in one or more baths containing edible dye, smoke-flavourings and preservatives.  Flavouring with herbs and oven smoking may also be effected and a binding or coating, e.g. of gelatine, applied.
Patent GB-117606-A (GB)
Title: Improvements in and relating to Means for Tipping Wagons and other Vehicles.
Inventor: WHYTE JOHN NICOLAS
IPC: B65G67/00
Filed: 1918-05-27
Abstract: 117,606. Whyte, J. N. July 16, 1917, [Convention date]. Tipping-apparatus.-Consists in providing a tilting-platform tipping-apparatus for unloading wagons &c. with means operated by the loaded wagon for returning the platform and unloaded wagon to the normal position. The platform 1, Fig. 2, is mounted on eccentric bearings 2 and on the ram of a cylinder 3, preferably containing oil, and connected by a pipe 4 to the cylinder 5 of an accumulator the ram of which carries a weight 7 and, as the tilting of the platform increases and the accumulator ram rises, it also carries with it a supplementary weight 8, normally resting on supports 9. When the wagon has discharged, both weights operate in the first part of the return movement and. when the supplementary weight again rests on its supports, the principal weight is sufficient to complete the movement of the platform to the horizontal position. In a modification, the platform 1, Fig. 4, carries curved brackets 15 from which ropes pass to the lowest weight 12 of a set of weights, the upper weights 10, 11 being kept out of action at the beginning of the tilting movement by means of step-like end supports, Fig. 3, coming into action successively as they are caught up by the lowest weight. The weights return the platform and unloaded wagon to the horizontal position as before.
Patent GB-613016-A (GB)
Title: Improvements in or relating to the preparation of 2.2-dihydroxy-diphenylmethane
IPC: C07C37/00
Filed: 1947-04-17
Abstract: A copper chromate hydrogenation catalyst is prepared by adding cupric nitrate to a solution formed by the addition of ammonium hydroxide to aqueous ammonium dichromate, and the dried powdered precipitate is heated, suspended in aqueous acetic acid, filtered off, and dried.ALSO:Resinous condensation products of the resol or Novolak type are prepared by reacting 2 : 21-dihydroxy-diphenylmethane alone or in admixture with one or more of its isomers with a carbonyl compound, e.g. formaldehyde.ALSO:2 : 21-Dihydroxy - diphenylmethane is prepared by fusing xanthane with caustic alkali, e.g. in air at 200 DEG  to 300 DEG  C., and reducing the 2 : 21-dihydroxy-benzophenone which separates from the reaction mixture, e.g. by adding acid to the cooled fused mass.  The caustic alkali may be used in excess, e.g. potassium hydroxide may be used in a quantity approximately three times the weight of xanthone employed.  The reduction may be effected by the action of hydrogen, e.g. at 2000 lbs./sq. in. pressure and at a temperature of 175 DEG  C., upon dry 2 : 21-dihydroxy-benzophenone melted with a copper chromite hydrogenation catalyst.  In examples: (1) 2 : 21-dihydroxy-benzophenone is prepared by fusing xanthone and potassium hydroxide, and is then melted with a copper chromite catalyst and reacted with hydrogen to yield 2 : 21 - dihydroxy - diphenylmethane; (2) 2 : 21-dihydroxy-benzophenone prepared as in (1) is reduced by refluxing with zinc amalgam, toluene, alcohol and concentrated hydrochloric acid.
Patent GB-512158-A (GB)
Title: Improvements in collapsible metal tubes
IPC: B65D35/14
Filed: 1938-03-22
Abstract: 512,158. Collapsable tubes. LEVER BROS. & UNILEVER, LTD.. and TAINSH, P. W. March 22, 1938, No. 8815. [Class 66] The nozzle of a metal collapsable tube having integral shoulder and neck portions is fitted with a tubular lining inset or ferrule 6 formed of moulded cellulose acetate or ceramic or other suitable non-metallic material. The inset protrudes slightly beyond or may be flanged over the rim of the nozzle, and interengaging means such as a projection 12 engaging in a recess in the nozzle may be provided to anchor it in place. A non-metallic closure cap is preferably provided. Specification 139,645 [Class 125 (iii)], is referred to.
Patent GB-1214111-A (GB)
Title: A self-aligning bearing
Inventor: ELGES HELMUT
IPC: F16C33/74
Filed: 1969-02-19
Abstract: 1,214,111. Ball and socket joint. H. ELGES. 19 Feb., 1969 [12 June, 1968], No. 8911/69. Heading E2F. [Also in Division F2] A ball and socket joint comprises a onepiece outer ring b having a spherical bore and provided with annular grooves c on the inner surface at the edges, the grooves being provided with ring seals d of elastic material.
Patent GB-767479-A (GB)
Title: Improvements in or relating to the contacts of electric switch means
IPC: H01H1/04
Filed: 1955-03-28
Abstract: 767,479. Switch contacts. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 28, 1955 [March 31, 1954], No. 8971/55. Class 38(5) [Also in Group XXXVI] Co-operating contacts of a switch consist respectively of nickel-coated stainless steel. and of nickel or nickel-coated stainless steel. The stainless, steel preferably includes 18 per cent chromium and 8 per cent of nickel, and the nickel coating is preferably applied by plating to give a thickness of 2 to 20 microns.
Patent GB-739860-A (GB)
Title: Improvements in machines for moulding tiles and the like
IPC: B28B3/12
Filed: 1954-03-29
Abstract: 739,860. Machines for moulding tiles. O'RAHILLY, A. March 29, 1954 [March 30, 1953], No. 9077/54. Class 87 (2). A "doctor" for a tile moulding machine has a hard facing 9, as of tungsten carbide, brazed or welded to a softer backing part 10 (e.g. of cast iron or mild steel). The face 9 may have a "toe" 9a of tool steel and a "heel" part 9b of tungsten carbide. To. permit a complex contour such as that shown in Fig. 3 the "doctor" may be made in several parts 10 held together by bolts through bores 11. In operation the material, e.g. concrete, is fed into the hopper 5, Fig. 2, and a roller 7 forces it between palette conveyer 6 and the lower surface 9 of the "doctor" 8.
Patent GB-365412-A (GB)
Title: Improvements in or relating to cigar-making machines
IPC: A24C1/02
Filed: 1931-03-26
Abstract: 365,412. Cigar-making machines. HAARER, J., 31, Reinganumstrasse, Frankfort-on-Main, Germany. March 26, 1931, No. 9279. [Class 130.] The leaf feed between conveyer belts f<1>, f<2>, to the moulding mechanism g is periodically interrupted by a pivoted flap b.
Patent GB-687783-A (GB)
Title: Improvements relating to circuit arrangements for modulating carrier frequency signals
Inventor: LEGATE REX EDWARD
IPC: H03C3/14
Filed: 1950-04-15
Abstract: 687,783. Modulating systems; frequency modulation. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 5, 1951 [April 15, 1950], No. 9294/50. Class 40 (v). In a valve modulating circuit of the kind in which modulating voltage is applied to a control electrode situated between two positively polarized electrodes, the linearity of modulation is increased by providing negative feed-back of the modulating signal from an impedance in the circuit of one of the positive electrodes to the modulation input circuit. The circuit may be arranged for amplitude or for frequency modulation. As shown in Fig. 1, for amplitude modulation, the carrier wave source 2 is connected to the inner control grid of a pentode valve 1, and the modulating source 3 is coupled through an amplifier 4 to the outer control grid situated between the anode and the screen grid. Modulated carrier is taken off from the tuned anode circuit 5, and modulating voltage taken across an anode resistor 6 is fed back in negative sense through a condenser 7 and resistor 8 to the input of the modulation amplifier 4. For frequency modulation, Fig. 2, the pentode valve 1 has its anode-cathode circuit connected across the tuned circuit 10 of the carrier source, and its inner control grid excited in quadrature phase by a network 11, 12. A high-frequency choke coil 9 replaces the output tuned circuit 5 of Fig. 1.
Patent GB-1261103-A (GB)
Title: Method and circuit arrangement for directly measuring entermodulation noise
IPC: H04J1/16
Filed: 1969-02-20
Abstract: 1,261,103. Testing multi-channel transmission links. TAVKOZLESI KUTATO INTEZET. Feb.20, 1969 [Feb.20, 1968], No.9323/69. Heading G1U. To measure the intermodulation noise occurring in one frequency band of a multi-channel transmission system X, e.g. a micro-wave telephone link, a white-noise generator ZG providing a periodically-interrupted noise signal is connected to the system input via a band-stop filter SZ, and the output of the system in the stopped band is passed to detectors TD-1 and TD-2 alternately, in sychronism with the interruption of the noise generator, the difference between the outputs of the two detectors being derived in a subtraction circuit K and displayed on an indicator I. The output of one detector equals the background noise of the system itself, and the output of the other the sum of the background and intermodulation noises, so that their difference is a direct measure of the intermodulation noise alone. Further indicators I-1, I-2, may be connected to the outputs of the individual detectors. The output of the system X under test is passed to the two detectors TD-1, TD-2, via a tuned receiver ZV and respective gates CS-1, CS-2, the gates being controlled by an envelope detector BD and phase splitter FH also responsive to the system output.