baber/WOPTO huggingface dataset:
Patent GB-1033167-A (GB)
Title: 6-phenyl dihydro-oxadiazines and method for their preparation
IPC: C07D413/04
Filed: 1963-05-13
Abstract: Novel compounds of the general formula <F\1> wherein X is hydrogen or chlorine, R1 is hydrogen or 1-4 C alkyl, R2 is 1-4 C alkyl and Z is t.-butyl, furyl, thienyl, phenyl or substituted phenyl with one or two identical substituents selected from fluorine, chlorine, bromine, 1-4 C alkyl, and 1-4 C alkoxy radicals, are prepared by contracting concentrated sulphuric acid at a temperature of 15-30 DEG  C. with an acyl hydrazide of formula <F\2> and separating the oxadiazine from the reaction mixture, or the acyl hydrazide may be contacted with polyphosphoric acid and heated at temperatures between 55 DEG  C. and 75 DEG  C. for a period of time followed by extraction of the oxadiazine.  Acyl hydrazides of the second general formula above are prepared by first reacting an alphaalkylaminoalkyl-benzyl alcohol of formula <F\3> with nitrous acid in the cold and reducing the resulting N-nitroso-amine to form the substituted hydrazide of the formula <F\4> which is then reacted with an acyl halide of formula ZCOCl.  Therapeutic compositions, useful as antidepressants in the form of tablets and capsules, contain as the active ingredient compounds of the first general formula above.
Patent GB-908370-A (GB)
Title: A method of zone-melting a rod of crystalline material
IPC: C30B13/28
Filed: 1960-05-27
Abstract: <PICT:0908370/III/1> A molten zone 3 is passed upwards through a crystalline rod 4 by means of a pancake induction heating coil 2 while the ends of the rod are compressed so as to form an enlarged rod 5 having a diameter greater than the internal diameter of the coil.  The step of zone-melting with compression may be preceded by a step of zone-melting without compression in order to pre-purify the rod and optionally to form a mono-crystal.  The step of zone-melting with compression may take place in a vacuum or an inert atmosphere. The upper holder for the rod may be fixed while the lower holder is advanced towards it with rotation.  Alternatively the lower rod may be fixed or both rods may be moved towards one another.  A three-fold increase in the cross-sectional area of the rod may be effected.
Patent GB-444951-A (GB)
Title: Improvements in or relating to the reception or transmission of radiated power
IPC: H01F21/06
Filed: 1934-06-27
Abstract: 444,951. Inductances; wireless receiving- apparatus. BROWN, S. G., 64, North Gate, Regent's Park, London. June 27, 1934, Nos. 18963 and 33365. [Class 37] [See also Group XL] A coil for radio reception and transmission is constructed by winding one or more wires in an axial direction for a given length to form an inner layer, a further superposed layer being wound in the opposite direction, the capacitance for tuning being inherent in the coil windings and the coil having an adjustable magnetic core. The core is adjusted to give half-wave tuning or a multiple thereof. The end reflection is minimized by tapering the windings towards one or both ends, or by spacing the end turns more widely, Fig. 7. The core may have a taper bounded by a logarithmic curve, Fig. 10. Selective tuning in the case of standing waves is effected by coupling coils or plates spaced along the coil at wave peak points. These capacitance couplings can be arranged to suppress a given wavelength by spacing them between the wave peak points. The coil may be arranged in a pack of winding sections, Fig. 11, forming a single coil unit. Fig. 2 shows one form of coil comprising inner and outer layers 2, 5 tuned by a core 8 of metal known under the Registered Trade Mark " Mumetal." Two or more series-connected coupling coils 11, 12 may be employed for transferring energy to later stages, or if suitably located, they can be employed as rejector coils. Inductive or capacitative coupling may be made or conductive connection by means of a slider on the turns of layer 5 may be employed. A circuit arrangement, Fig. 5, contains reaction coils 19, 20 located at the ends of the main coil, the coils 19, 20 being series-connected with the fixed plates 22, 23 of a variable condenser. At these end positions, the reaction coupling is constant over the whole tuning range. Specification 421,564 is referred to.
Patent GB-172913-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1921-07-13
Abstract: 172,913. Haworth, J. P., and Josephs, H. Foster-. July 13, 1921. Tobacco pipes.- The bowl b communicates by an inclined bore e with an inverted chamber c, which contains cotton wool or filtering- material d, is closed by a stopper f, and may be fitted with a perforated plate h, and formed with a domed or shouldered recess communicating with the stem by a duct g.
Patent GB-161882-A (GB)
Title: Improvements in davits
IPC: B63B23/08
Filed: 1920-07-06
Abstract: 161,882. Dawson, A. J. July 6, 1920. Luffing davits designed to equalize the power required to swing the davits and boat from an inboard to an outboard position comprise arms 4 pivoted to brackets 6 secured to the hull 1 at the juncture with the deck 2. The free ends of the inwardly inclined davits carry levers 7 to one end of which the boat tackle is secured, and to the other a link 16 pivoted at 17 to the free end of a crank 15 mounted on a fore and aft deck shaft 14 manually operated through the gears 21, 22 by the crank arm 24. The outer end of the crank 15 is also converted to an intermediate part of the davits by a link 19. The luffing of the davits from an inboard to an outboard position causes a partial rotation of the lever 7, and the point of attachment of the boat describes a substantially horizontal path during the luffing movement.
Patent GB-517564-A (GB)
Title: An improved packet, wrapper or container for braid, tape, cord, yarn or the like
IPC: B65D85/672
Filed: 1938-06-27
Abstract: 517,564. Packets &c. of braid &c. JONES, STROUD, & CO., Ltd., and JONES, W. June 27, 1938, No. 19018. [Class 18] A packet, wrapper or container for braid, tape, cord, yarn &c. comprises side walls 30b connected by walls 30c which have windows for giving access to the contents, a block &c. being positioned between the walls at or about the centre to space them apart, a ferrule 24 being in some oases provided. The braid &c. is wound on the block which. may rotate with or on the ferrule. An outer covering of transparent paper is provided. The container proper may be made from a blank, one side wall being constituted by folded-over flaps.
Patent GB-293308-A (GB)
Filed: 1928-06-30
Abstract: 293,308. Electrical Research Products, Inc., (Assignees of Ives, H. E.). July 2, 1927, [Convention date]. Television.-Separate areas of an object 10 are carried simultaneously by a corresponding number of light-beams. A number of light-beams of different spectral characteristics are produced by light-filters arranged radially in apertures 23 in a scanning disc 22. The beams so produced impinge on the object along adjacent paths and are reflected to light-sensitive cells 40 - - 43 which are inherently selective to appropriate spectral bands or are rendered so by light-filters 50 - - 53. A second similar group of cells 44 - - 47 may also be used. The modulated currents thus produced are transmitted over a corresponding number of channels and operate a multi-electrode glow-discharge lamp at the receiver as described in Specification 288,239. Specifications 288,234 and 288,238 also are refeited to.
Patent GB-223324-A (GB)
Title: Improvements relating to fluid-flow passages particularly applicable to internal combustion engines
IPC: F02F1/42
Filed: 1923-07-25
Abstract: 223,324. Bradshaw, G. July 25, 1923. Casings.-A fluid flow passage, particularly for poppet valves of internalcombustion engines, is made of spiral formation, Fig. 1, so that the fluid is made to circulate around the valve stem and guide, thereby reducing obstruction to its flow and promoting turbulence. The inlet pipe 5 is arranged tangentially with the spiral passage 7 extending therefrom around the valve guide 1. The area of the passage 7 decreases as shown, and the upper wall of the passage may be of helical formation.
Patent GB-1024827-A (GB)
Title: Slow wave structures for travelling-wave tubes
Inventor: ASH ERIC ALBERT
IPC: H01J23/24
Filed: 1963-05-14
Abstract: 1,024,827. Travelling-wave tubes. STANDARD TELEPHONES & CABLES Ltd. May 14, 1963, No. 19043/63. Addition to 906,206. Heading H1D. A slow-wave structure of the type described and claimed in the parent Specification has a conductive ridge symmetrically disposed between the two side walls and electrically connected with them, extending along the slowwave structure in proximity to one side of the grating so as to modify the electromagnetic field of the grating. In modifications, a pair of ridges may be disposed one on each side of the grating, or two gratings provided, each parallel to one another and a conductive ridge disposed close to each grating. A tapered waveguide coupling structure of the type described in Specification 1,024,828 may be used.
Patent GB-748416-A (GB)
Title: Improvements in or relating to selecting mechanism for printing telegraph receivers
IPC: H04L17/18
Filed: 1953-07-09
Abstract: 748,416. Printing-telegraph receivers. SIEMENS & HALSKE AKT.-GES. July 9, 1953 [Sept. 16, 1952], No. 19074/53. Class 40 (3). In a teleprinter receiver in which the response movements of the receiver magnet are transferred to the selecting members of a combiner by push members operated by the driving mechanism of the receiver, guide members are provided so that the selected settings of the push members are maintained as soon as they are moved beyond the operating zone of the receiver magnet and until the selecting members are set. As shown, the extension of the armature 2 of the magnet 1 co-operates with the fish-tail end 6a of each pusher member 6 pivoted on associated three-armed levers 5 having ends 5b co-operating with shaped cams 7 having portions which are spirally staggered. If the end of the armature occupies the released position 2a the movement of the lever 5 of the left causes the lower part of the tail to be engaged by the end of the armature, and the pusher member 6 to be rocked when the highest part 7a of the cam engages the end 5b. The movement of the lever 5 when the end 5b engages the constant radius portion causes the tapered end of the member 6 to engage the upper surface of a wedge-shaped guiding member 12 located in identical recesses in the five selecting rings 11. The cams 7 are shaped so that the final clockwise movement of each lever 5 takes place simultaneously and causes the tapered end of the associated pusher member 6 to engage between the guide member 12 and the edge 11a of the recess in the ring 11 to effect its movement. If the signal elements are simultaneously applied to separate magnets, the cams are shaped so that the storage position represented in Fig. 4 to allow for the setting of the members 6 before they are moved simultaneously to position the rings 11, is omitted.
Patent GB-530220-A (GB)
Title: Improvements in aerial systems for radio-receivers
IPC: H01Q1/00
Filed: 1939-06-30
Abstract: 530,220. Wireless receiving systems. PHILIPS LAMPS, Ltd., and KAYE, J. B. June 30, 1939, No. 19134. [Class 40 (v)] A transmission line for coupling an aerial to a receiver comprises two or more pairs of lines with transformers or other impedance matching devices at the ends of the lines arranged so that the wires provide at least three transmission circuits of which two or more form physical circuits and at least one a phantom circuit. The down lead of an aerial 10 is connected to the primaries 11, 12, 13 of a triple transformer system the secondaries 16, 17 associated with the primaries 11, 13 being connected to a pair of wires 18, 19 while the secondary 20 is connected to tappings of the coils 16, 17. The wires 18, 19 thus provide physical circuits for the coupled systems 11, 16 and 13, 17 and a phantom circuit for the system 12, 20, and are connected to a similar transformer system in the receiver input circuit. In Fig. 2 a similar arrangement is shown for coupling up an aerial 22 which acts as a dipole for short waves and a horizontal aerial for medium and long waves. The two limbs of the aerial are connected by a short wave coil 23 which is joined by a line 24 to the primaries 25, 26 of the long and medium wave transformers. In a further modification, Fig. 3 (not shown), in which both a dipole and an ordinary broadcast aerial are employed, the tappings for the phantom circuit are connected directly to the arms of the dipole.
Patent GB-581665-A (GB)
Title: Improvements in or relating to hydraulic control systems
IPC: F15B11/08
Filed: 1944-10-05
Abstract: 581,665. Hydraulic machines. MESSIER AIRCRAFT EQUIPMENT, Ltd., and HADEKEL, R. Oct. 5, 1944, No. 19144: [Class 69 (ii)] A hydraulic jack &c. is in permanent communication with a choke or leak 3, being connected to a point between the leak and a valve 2 which leak and valve are arranged in series across the fluid pressure lines. The device shown comprises a pair of jack cylinders, the pistons of which operate a lever 6 acting on a rocker arm 4 to control an aircraft undercarriage. The valves 2 are actuated solenoidally to supply liquid to the cylinders selectively.
Patent GB-585062-A (GB)
Title: Improvements in or relating to multi-pin plug and socket connections
IPC: H01R13/193
Filed: 1944-10-06
Abstract: 585,062. Fastenings. KENURE, J. F., and WHITMARSH, H. F. Oct. 6, 1944, No. 19184. Drawings to Specification. [Class 44] [Also in Group XXXVI] A lid is releasably secured to a container by means of plug elements of the one engaging socket elements on the other, the distance between centres of the plug elements being different from that of the socket elements, and one set of elements being mounted on a resilient member which is compressed manually or by screw threads or levers to effect engagement or removal of the lid. The elements may be screwthreaded, the socket diameter being larger than the plug or the latter may have ends hooking over the bottom of a smooth-bore socket. The member may be of rubber, synthetic rubber, polyvinyl chloride or other thermo-plastic synthetic resin.
Patent GB-134966-A (GB)
Title: Improvements in or relating to Centrifugal Separators.
Inventor: STURGEON ROBERT ALEXANDER
IPC: F26B7/00
Filed: 1918-11-22
Abstract: 134,966. Sturgeon, R. A. Nov. 22, 1918. Discharging; treating substances with gases.- In a centrifugal separator, preferably of the type described in Specification 24038/13, the solid material is discharged by the the piston C, when the cover D is raised, into an annular chamber F, where it is dried by a current of hot air which is induced by the rotation of the centrifuge to flow through the solids therein. The fixed wall F<1> of the chamber F is provided with slotted platforms H through which the material is forced by scrapers J carried by the rotary outer wall F<2>. Hot air enters the apparatus by a pipe K, and the centrifuge may be provided with fan blades to assist the induction of the air. In a modification. oppositely inclined plates are fixed to each wall of the chamber F, and scrapers secured to each wall are mounted between the scrapers. The scrapers on the fixed wall F' may be omitted, and the inclined plates may be perforated
Patent GB-503381-A (GB)
Title: Improvements in or relating to sound heads for optical sound-reproducing apparatus
IPC: G11B7/00
Filed: 1938-06-29
Abstract: 503,381. Optical sound - reproducing apparatus. KODAK, Ltd. June 29, 1938, No. 19254. Convention date, July 21, 1937. [Class 40 (ii)] Relates to apparatus in which the optical system may be readily shifted to focus the sound-reproducing beam on either face of a sound-film, to enable films having the soundtrack on either margin to be used. According to the invention, means are provided for moving the mount for the optical system along its optical axis, into either of the two desired focusing positions or into an intermediate position where the mount is free for removal. As shown, the mount 11 is fitted into a recess in a support 10, being held by spring members 21, 22 and its position being accurately located by the engagement of a key 23 in a notch in the support. A screw on the support 10 has a head 28 engaging in a notch 26 in the key, the width of the notch being greater than that of the head 28 by an amount exactly equal to the thickness of the film. The screw is so adjusted that when either side of the notch 26 is in contact with the head 28, the optical system is correctly focused in one or other of the required positions. Shifting of the mount 11 to these positions, and also to an intermediate position where the mount can be withdrawn from the support 10, is effected by rotating the spring blade 21 (which is forked to engage a stud 32 on the mount) by means of a resilient arm 33. The arm may be moved directly by means of a knob 39, or, in a modification, by a cam. Specification 442,763 is referred to.
Patent GB-361907-A (GB)
Title: Improvements in and relating to sound recording apparatus
IPC: G11B7/00
Filed: 1930-06-24
Abstract: 361,907. Optical sound-recording apparatus. BRITISH THOMSON-HOUSTON Co., Ltd., Crown House, Aldwych, London.-(Assignees of Robinson, L. T. ; 100, Balltown Road, Schenectady, New York, U.S.A.) June 24, 1930, No. 19259. Convention date, June 24, 1929. [Class 40 (ii).] Comprises an apparatus for photographically recording sound in which the recording means is responsive to the alternating current corresponding to the wave form of the sound being recorded and is also influenced by a direct current responsive to the volume of the sound waves. As shown applied to a record of the variable width type, the optical system consists of a light source 7, Fig. 1, a condensing lens 8, a light stop 9, the mirror 10 of an oscillograph galvanometer 11, a cylindrical lens 12, a screen 13 having an aperture 14 and a lens 15, which serves to project a line of light 6 on to the film 1. Between the moving element 25 of the galvanometer and the amplifier 26 connected with the recording microphone is inserted a rectifying apparatus 27. This apparatus superimposes upon the sound-responsive current a rectified component thereof by means of contact rectifiers 28 .. 31. The connections include variable resistances 37, 38 and inductances 39, 40. Before use, the apparatus is adjusted so that the deflection due to the alternating current is substantially equal to the deflection caused by the rectified current, and the zero position is so adjusted that when no sound is being recorded the line 6 covers only a small portion of the sound track on the fi1m 1. In this manner, a positive sound film is obtained, as shown by Fig. 2, in which the axis of separation between the clear and opaque portions of the record is irregular and at varying distances from the boundarv line of the sound track in accordance with the volume of the recorded sound. For making a record of the variable-density type, a variable discharge lamp 45, Fig. 3, is used. The lamp 45 is illuminated partly by direct current from the battery 47 to which it is connected by the potentiometer 48 and partly by combined alternating and direct currents from the rectifying apparatus 27. The potentiometer is adjusted so that when there is no sound being recorded the illumination of the lamp 45 is so dim that the film 1 is substantially unexposed. During recording, the rectified current increases the illumination and this is modified by the alternating current corresponding to the wave form of the sound being recorded.
Patent GB-1471403-A (GB)
Title: Method and unit for heating using solid fuel
IPC: F23L9/00
Filed: 1976-03-24
Abstract: 1471403 Fireballs for solid-fuel grates A W G ABERNETHY 24 March 1976 [8 May 1975] 19429/75 Addition to 1459023 Heading F4W A solid-fuel heating unit as described in Specification 1,459,023 is modified in that the bed 12 of fire-resistant spheres or pseudospheres 13 comprises more than one layer and air is supplied to the top of the bed 12 in addition to air supplied upwards through the bed. In the form shown, air is supplied through a valve controlled inlet 19 in an ash pan door and through inlets 17A, 17B which may be provided in a fire door. The air flow rate through inlets 17A, 17B is controlled by butterfly or hit-and-miss valves 18A, 18B which may be actuated thermostatically. The riddle 11 is moved by a timed oscillatory electric motor.
Patent GB-597640-A (GB)
Title: Heating apparatus for aircraft
IPC: B64D13/08
Filed: 1944-10-10
Abstract: 597,640. Air heating stoves. MARRIOTT, H. L. (Solar Aircraft Co.). 'Oct. 10, 1944, No. 19500. [Class 64 (i)] [Also in Gro'ups XI and XXIX] A combustion heater for an aircraft cabin in the example shown in Fig. 1, comprises a stove 18 in which is a' combustion chamber 25 separated from the casing 27 of the stove by an air space 17 with helical baffles 26. Air enters the system by the scoop 12 and passes via the conduit 14 through a magnetic valve 15, the main part entering the air space 17 to be heated, the remainder passing through a constant pressure valve 35 into the combustion chamber, where it mixes with a hydro-carbon fuel such as propane, which is delivered through a similar system from the tank 22, the mixture being ignited by the coil 23. The warmed air leaves the stove for introduction to the cockpit by the pipe 28, the products of combustion being rejected to the atmosphere by a conduit 24 and spill 13. In a modification, Fig. 9, a safety switch 225 may be incorporated in the electric circuit, and the magnetic valve 15 may be replaced by a valve 126 controlled by the pressure of the fuel in the pipe 21<1>. If desired the air and the fuel to be ignited can be mixed prior to entering the combustion chamber, and both the warmed air and the products of combustion are passed into the cockpit. To ensure a fixed relation between the gauge pressures of the air and the fuel to be mixed, a pipe 120 may connect the exit side of the constant pressure air valve 35<1> to the constant pressure fuel valve 36<1>.