baber/WOPTO huggingface dataset:
Patent GB-405591-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02P1/44
Filed: 1933-10-07
Abstract: 405,591. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Morrill, W. J. ; 2537, Maple Place, Fort Wayne, Indiana, U.S.A.) Oct. 7, 1933, No. 27680. Convention date, Oct. 8, 1932. [Class 35.] The auxiliary primary winding of a single phase induction motor with a condenser in series therewith is connected in parallel with the main winding for starting but is disconnected to form a tertiary circuit for normal operation or only part of the auxiliary winding may be included in the tertiary circuit. As shown the switch 16 is in the starting position but when the motor reaches a predetermined speed the contact 15 is engaged and the condenser 13 is connected in parallel with part or all of the auxiliary winding 12 which is then inductively linked with the main winding 10 through the squirrel cage secondary 17.
Patent GB-991549-A (GB)
Title: Improvements in or relating to garden structures
IPC: A01G9/02
Filed: 1961-07-31
Abstract: 991,549. Plant containers; garden frames. E. FOXON. Oct. 31, 1962 [July 31, 1961], No. 27692/61. Heading A1E. A structure for a raised garden comprises two side walls 10 the tops of which slope downwardly as at 15, the walls being braced by the rods 16 and having grooves 21, 20 in which transverse soil retaining partitions 17, 18 are supported. Transparent framed lights may be supported in recesses 24 in the side walls which comprise preformed concrete units 10a-10e. The back wall 19 of the device may form part of a garden boundary wall. In a modification the side walls slope downwardly from a central dividing wall to form a "tent" shape. One or more sections may be removable from the top of the back wall 19 or the dividing wall.
Patent GB-246260-A (GB)
Title: Improvements in or connected with oil pumps
IPC: F16N13/20
Filed: 1924-11-20
Abstract: 246,260. Spence, W. L. Nov. 20, 1924. Fluid-friction apparatus for pumping oil comprises a rotary member loosely mounted on the driving shaft so that it can automatically assume a slightly eccentric position in the casing in which it has a small amount of play, the casing being provided with inlet and outlet ports at less than 180‹ and preferably at 90‹ to eacli other, with grooves cut along the casing wall at the ports, having sharp adjacent edges and tapering-off remote edges, so that fluid is rolled away from one groove and delivered to the other. The casing B contains the rotor A, with about five-thousandths of an inch peripheral play, mounted on the driving shaft J by a loose coupling. The inlet and outlet ports C, C<1> are situated over the channels D, D<1>, the shape of which facilitates the fluid-friction action of the pump. The pump can be reversed by merely reversing the direction of rotation of the shaft J. A bye-pass E, E<1> capable of being stopped by a plug screwed into the tapped hole F is provided for regulating the flow. The effective delivery may also be varied by throttling the outlet of an oil-tight diaphragm by an adjusting screw.
Patent GB-266027-A (GB)
Title: Improvements in apparatus for injecting liquids into pipes, drains and the like for testing purposes
IPC: G01M3/26
Filed: 1925-11-05
Abstract: 266,027. Macfarlane, H. Nov, 5, 1925. Single-acting piston pumps; valves. - In an apparatus for injecting liquids into pipes, drains, &c., for testing purposes in which a reciprocating pump is employed, a pressure gauge is located in a visible and accessible position on the pump for indicating the pressure at any time during the operation. The pump valves are carried by a removable casing C divided into chambers D, E by a septum F in which is screwed a non-return valve G of the construction shown in Fig. 3, a second non-return valve H operating in the opposite sense to valve G being screwed into the side of chamber D and connected to a flexible tube J furnished with a filter end K. A pressure gauge O is detachably secured to the cylinder A and is connected to chamber E by a pipe N. The apparatus is connected to the pipe &c. by a threaded discharge end L.
Patent GB-1136338-A (GB)
Title: Control mechanism for a swivelling tail rotor of a convertiplane
IPC: B64C13/02
Filed: 1967-06-16
Abstract: 1,136,338. Convertiplane propeller control. UNITED AIRCRAFT CORP. 16 June, 1967 [8 July, 1966], No. 27866/67. Headings B7G and B7W. [Also in Division F2] A convertiplane having a variable pitch tail rotor 24, swivellable about a vertical axis 18 between an anti-torque helicopter position, shown, and a forward thrust aeroplane position, has its tail rotor blade pitch controlled from the output arm 38 of a dual-input-selectoroutput control mechanism, swivellable with the tail rotor, the input arm 52 of the mechanism being connected to two pilot controlled members, one 66 (e.g. for anti-torque control), movable fore and aft, and the other 76 (e.g. for throttle control) movable laterally. When the control mechanism is in its neutral position the joint between members 66, 67 and the input arm 52 lies on the axis 18. The anti-torque control, member 66, from foot pedals may also operate the upper and lower rudders 70, 72. In the anti-torque position of the tail rotor 24, shown, movement by member 76 does not affect the pitch of the tail rotor blades 26 as the input arm 52 is free to pivot about the output arm 38. However, movement of member 66 rocks the output arm 38 about the shaft 42, thereby moving arms 34 and 32, and thence rod 30, located inside the tail rotor drive-shaft 22, and the tail rotor blade pitch control mechanism 28. When the tail rotor 24 is pivoted about axis 18, shaft 80 rotating to rotate drive gear-box 16 via link 86, to the forward thrust position, the tail rotor blade pitch is changed by movement of rod 76, rod 66 being ineffective. Two alternative forms of dualinput - selective - output mechanism are described. In one, Fig. 5 (not shown), the input and output arms 52 and 38 are rigidly connected one to another but the combined bell-crank is mounted on a spherical bearing instead of a shaft 42. In the other the output and input arms 90, 92, Fig. 3, are in line, the output arm pivoting about one horizontal axis in a bracket 100 mounted to rotate with the casing of gear-box 16, the input arm pivoting on the output arm about the horizontal axis normal to the one pivoting the output arm to the bracket 100.
Patent GB-1166051-A (GB)
Title: Improvements in or relating to Flash X-Ray Generation Methods and Apparatus
Inventor: OWEN WILLIAM DENLEY
IPC: H01J35/22
Filed: 1966-06-22
Abstract: 1,166,051. X-ray tubes. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 15 June, 1967 [22 June, 1966], No. 27896/66. Heading H1D In a method of generating a flash X-ray pulse, a high voltage pulse is applied in a vacuum of at least 10<SP>-10</SP> torr between at least one sharpedged or fine wire field-emission cathode and an adjacent control electrode and simultaneously a high voltage pulse is applied between the anode and the cathode or control electrode to accelerate electrons to the anode to generate X-rays thereat, and the cathode-control electrode pulse is short enough and the vacuum high enough so that electrons are produced only by field emission, and ionization of the cathode and metallic arc formation are prevented. The anode pulse may be a positive pulse with a negative overswing in which event the cathode-control electrode pulse has a positive duration less than that of the anode pulse. As shown in Fig. 1, four cathodes 3, 3<SP>1</SP>, 4, 4<SP>1</SP> are arranged with their respective sharp edges 6, 6<SP>1</SP>, 7, 7<SP>1</SP> directed towards and aligned transversely of anode rod 1 and the cylindrical control electrode 2 coaxially surrounding the anode rod has two longitudinal slots 8, 8<SP>1</SP> aligned with the cathodes to permit electrons to reach the anode. In another embodiment, Fig. 5, the cathodes 21 are annular tungsten plates having sharp inner edges and are supported in molybdenum annular cups 22 and are coaxial with the anode rod 17, which may be tapered. The control electrodes are rings 26 coaxial with anode rod 17 and arranged so that the cathode plates are equispaced between the rings. An earthed shield 31 may surround the envelope to improve the focusing of electrons on to the anode. Typical dimensions and operating conditions are given for the embodiments. By varying the anode pulse independently of the other pulse, the desired X-ray energy in constant doses may be produced.
Patent GB-172783-A (GB)
Title: Improved means for facilitating the separation of liquor from tar and oils
IPC: C10C1/00
Filed: 1920-10-02
Abstract: 172,783. Glover, S., West, J., and West's Gas Improvement Co., Ltd. Oct. 2, 1920. Separating by gravity.-Apparatus for separating liquor from tar and oils comprises a tower a, with a plurality of trays b with central apertures c', cones e with holes at the apexes, a pipe h for delivering the mixed tar and liquor at the apex of one of the cones, a pipe j for drawing off tar from a sump i and a pipe k with scum board m for draining off the lighter liquor. The trays may be supported on screwed studs d. The cones have serrated lower edges and perforations g. A pipe n slightly higher than the pipe k serves to drain off any light tarry matter or oils which may accumulate on the surface. Pipes controlled by float or like valves may be provided at convenient heights for drawing-off different fractions of the separated tar and oils.
Patent GB-435781-A (GB)
Title: Improvements in or relating to vaporizers for internal-combustion engines
IPC: F02M29/04
Filed: 1934-10-01
Abstract: 435,781. Vaporizers. INTERNATIONAL MOTOR PATENTS PROPRIETARY, Ltd., 394, Collins Street, Melbourne, Australia. Oct. 1, 1934, No. 28055. Convention date, Aug. 15. [Class 7 (iii)] Mixture from a carburetter is vaporized in three exhaust-jacketed chambers 41, 42, 43, which are connected together in series by pipes 26, 34, and distributed to the cylinders by a manifold 33 containing a throttle valve 30 and, preferably, a connection 36 for a starting carburetter. The first chamber 41 has a transverse baffle with Venturi passages 13 and a recessed part 12 and the second chamber 42 has a velocity-reducing bellmouth 17 through which the mixture enters. Extra air is added by adjustable non-return valves 37. Exhaust gas is drawn through the exhaust jackets in parallel from an exhaust pipe 19 by ejector action at the return point 44 of a common return pipe 32.
Patent GB-464047-A (GB)
Title: Improvements relating to refractory products
IPC: C04B35/16
Filed: 1935-10-11
Abstract: Merwinite, 3CaOMgO.2SiO2, is used as a refractory, either alone (when synthesized by heating a mixture containing lime, silica and magnesia) or, as the naturally-occurring mineral, mixed with periclase.  As raw materials for its manufacture may be used dolomite, magnesian limestones, silica sand, serpentine, talc, olivine and calcareous and siliceous magnesites.  The mixture is burnt to about 2800 DEG  F.  Any excess of magnesia present is converted into periclase.
Patent GB-252986-A (GB)
Title: Improved machine for cutting shaped leather pieces for soles, heels and the like
IPC: A43D29/00
Filed: 1925-11-09
Abstract: 252,986. Wolynski, P. Wolkogon-. Nov. 9, 1925. Traversing - cutter apparatus.-A machine for shaping leather pieces for soles &c. has a work table c, with a concave surface, held in a frame a, with bracket b carrying a pivoted lever d actuacted by treadle g against the urge of a spring e. To the lever d is freely pivoted, by a ball-joint connection, a bar m with lower spigot k on which is revoluble mounted a sleeve h carrying a detachable straight-sided cutting tool i and a spring-pressed clamp-block r.
Patent GB-237480-A (GB)
Title: A new or improved appliance for applying whitening or the like to the ground
IPC: A63C19/08
Filed: 1924-11-25
Abstract: 237,480. Wright, H. L. Nov. 25, 1924. Lawn-tennis &c. markers.-Apparatus for marking out tennis courts or for other purposes, of the kind employing a hand-supported liquid container with a relatively short handle and with a forwardly-extending delivery spout terminating in a marking wheel, has a central delivery opening at the extreme end of the spout and carries the marking wheel between a pair of plates arranged longitudinally of the delivery spout and extending on either side of the discharge nozzle. A spout extension 14, which may be detachable, terminates in a restricted orifice 19 and directs the fluid on to a marking wheel 17 mounted between metal strips 16. The marking wheel may be constructed of wood or of sheat metal pressings, and may be provided with a tyre of felt or may have a peripheral groove to receive the marking fluid. By removing the extension 14 and substituting a rose the apparatus may be used as a watering-can. The liquid container 1 is pro. vided with a base extension 10 below the spout to prevent the can from overturning.
Patent GB-599894-A (GB)
Title: Improvements in machines for joining sheet materials by the heating effect of electric stress alternating at high frequency
IPC: B29C65/04
Filed: 1945-10-25
Abstract: 599,894. Seaming non-metallic sheet materials. BRITISH INSULATED CALLENDER'S CABLES, Ltd., QUAYLE, J. C., and JONES, P. Oct. 25, 1945, No. 28194. [Class 42 (i)] In a machine for joining superimposed layers of thermoplastic material by passing the latter between two pressure rollers, at least one of which is driven to forward the material, while the contacting surfaces are heated by a highfrequency electric field, a single member is provided to vary the intensity of the electric field and the speed of the material, simultaneously and in the same sense. An overriding control may be provided to pre-set the ratio between the speed of movement and the degree of heating. The machine comprises a work-table 1, standard 10 and overhanging arm 9. A lower roller 3 on a shaft 5 is driven through reduction gearing 6 from a direct current electric motor 4, and an upper roller 2 on a shaft 20 is driven from the shaft 5 through bevel gears 7, 12, 14, 15, 16, 17, 23,. 24 and shafts 11, 13, 19, the shaft 19 consisting of two telescopic parts in splined engagement, a spring 25 keeping the gear 24 in engagement with the gear 23. The bearings 21 of the shaft 20 are loaded by springs 22 and may be pressed down or lifted by a lever 26. The roller 3 comprises electrodes 27, 28 separated by insulating material and connected by spring contacts 29, 30 to the output of a high-frequency oscillator 31. The latter is supplied with alternating current through a variable transformer 40, the adjustable members of which are connected through a variable gear 44 and common shaft 43 with the rheostat 37 controlling the voltage supplied to the armature of the motor. -The field of the motor is independently excited, or may be a permanent magnet, but a field winding in series with the armature winding is preferably provided, to prevent decrease, or produce an increase, of speed with increasing mechanical load. The voltages applied to the motor armature and the oscillator input are simultaneously controlled by rotating the shaft 43 by means of rack mechanism 47 linked to a pedal 45, the ratio between them being pre-set by the manual control 49 of the variable gear 44. The oscillator may be as described in Specification 599,893, [Group XL], incorporating a mechanically movable device for varying the output voltage, which is in that case adjusted simultaneously with the speed control for the rollers. Specification 599,898 also is referred to.
Patent GB-1017775-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B7/02
Filed: 1962-07-23
Abstract: 1,017,775. Lens mounts. EASTMAN KODAK CO. July 23, 1962 [July 24, 1961], No. 28222/62. Heading G2J. A triplet-type objective is made up of two positive elements 11, 17 of polymethyl methacrylate and a negative element 15 of acrylonitrilestyrene co-polymer and in order to maintain the back focal length constant as the temperature varies, lens 11 has moulded integrally therewith a support 12 comprising a member 14 for supporting element 15 and a member 13 to which is attached a plastic spacing member 16 carrying the integrally moulded mount 18 of element 17. Spacer 16 has a co-efficient or linear expansion between 15 x 10<SP>-5</SP>/C. and 30 x 10<SP>-5</SP>/C and may be of polyethylene, polyvinylene chloride, cellulose propinate or ethyl cellulose. The length of spacer 16 is greater than the axial distance between the centres of elements 11, 17 and so chosen in accordance with the expansion co-efficient as to effect thermal compensation, a formula for finding the length of the spacer being given in the specification. In a modification, Figs. 2, 3, (not shown), the spacing tube 24 has radial indentations 31 for receiving mating projections 32 on lenses 23, 25 and the lenses are held together by an outer tube 20 which is spun over element 25 at one end and at the other end, presses element 23 against the spacer 24, a spring clip 22 being placed between the outer tube 20 and the element 23.
Patent GB-242678-A (GB)
Title: Improvements in or relating to steam turbines
IPC: F01D17/18
Filed: 1925-11-10
Abstract: 242,678. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 10, 1924, [Convention date]. Working-fluid supply.-In the high-pressure part of turbines using both live and exhaust steam, the nozzle segments e, f for live and exhaust steam respectively are arranges to follow one another alternately, in order to ensure a thorouhg mixing of the highly superheated live steam with the exhaust steam in the stages following the first stage, so as to avoid the formation of water drops therein. By nesting the admission-box b for the exhaust steam within the admission-box a for the live steam, uniform heating and free expansion of the box b is obtained.
Patent GB-670818-A (GB)
Title: Improvements in or relating to magnetic fluids
IPC: H01F1/44
Filed: 1949-11-08
Abstract: 670,818. Magnetic substances. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. Nov. 8, 1950 [Nov. 8, 1949], No. 28611/49. Class 37. [Also in Group XXXV] A magnetic fluid which may be used in variable electric resistors comprises ferromagnetic particles coated with metal having a permeability substantially less than that of the, particles. The coating may be copper, nickel, platinum, silver or gold and removes coherence between the particles upon removal of the magnetic field which is varied to vary the resistance. The powder may be electroplated by continuously mixing it on an electrode at the bottom of an electrolyte, or coated with copper in copper sulphate solution.
Patent GB-427114-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03J3/24
Filed: 1933-10-16
Abstract: 427,114. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 43, West Hill, Sydenham, both in London. Oct. 16, 1933, No. 28619. [Class 40 (v)] [See also Group XXXVI] In order to facilitate ganging of high-frequency circuits comprising inductances with ferro-magnetic cores, the polarizing effect of the D.C. component of the valve anode current is eliminated by superimposing the effect of an equal current of opposite sense so that the polarization of the core is zero. This may be effected either by providing the high-frequency transformers with a third winding fed with current from some part of the high-tension supply circuit and so arranged as to oppose the effect of the valve current on the core, or by the method shown. Here the two high-frequency stages comprise push pull amplifiers 3A, 3B, 3C, 3D, a push-pull detector 3E, 3F and audio frequency amplifier AF. The polarizing current in the primary windings of transformers 5, 10 is zero due to the push-pull arrangement.
Patent GB-1325154-A (GB)
Title: V-triazole compounds
IPC: C07D249/06
Filed: 1970-06-12
Abstract: 1325154 Halo-1,2,3-triazoles CIBA-GEIGY AG 12 June 1970 [13 June 1969] 28669/70 Heading C2C [Also in Divisions C3 C5 and D1] Triazoles of formula wherein A is an alkyl, alkenyl, aralkyl, aralkenyl, aryl, methyl-, methoxy-, or chloro-substituted aryl or aromatic heterocyclyl group, X is a chlorine or bromine atom and R is an organic radical bonded through a carbon atom, e.g. (a) a coumarinyl radical of formula wherein Y is a mononuclear unsubstituted or methyl-, methoxy- or chloro-substituted aryl group or mononuclear aromatic heterocyclic group conjugated with the coumarin ring, and each of R 1 , R 2 , R 3  and R 4  is hydrogen or a C 1-6  alkyl group, or (b) a stilbyl radical of formula  wherein each of X 1  and X 2  is hydrogen, a free, salified or esterified sulphonic acid radical, a free or esterified carboxylic acid radical or a sulphamoyl, carbamoyl, alkylsulphonyl, arylsulphonyl or cyano group and Z is hydrogen, halogen, or a cyano, acylamino or optionally substituted 1,2,3-triazolyl, pyrazolyl or triazinyl group, are prepared by reaction of a corresponding 2 - R - 4 - A - 5 - unsubstituted - 1,2,3- triazole N-oxide with hydrogen chloride or hydrogen bromide. The products are optical brighteners. Triazole-N-oxide starting materials are prepared by oxidative ring closure of a compound of formula AC(=N-NHR)CH=NOH.
Patent GB-651633-A (GB)
Title: Intermediate cooler arrangement for multi-stage rotary compressors
IPC: F04D29/58
Filed: 1948-11-04
Abstract: 651,633. Centrifugal compressors. MASCHINENFABRIK OERLIKON. Nov. 4, 1948, No. 28686. Convention date, Oct. 1. [Class 110(i)] In a multi-stage and multi-diffuser compressor, the medium issuing from each of the multiple diffusers 3 arranged along the circumference of one stage 1 is led by way of a separate cooler 4 to the suction chamber of the following stage 7, the medium entering the cooler elements 5 being diverted by an angle greater than 90 degrees and flowing along the elements towards the centre of the compressor. Cooling water enters and leaves at 8 and 9 respectively. The cooler elements can be disposed axially of the compressor instead of tangentially.
Patent GB-941208-A (GB)
Title: Coupling for attaching a fish hook to a line
IPC: A01K91/04
Filed: 1961-08-10
Abstract: 941,208. Stud and socket fastenings. J. GARIOCH. Oct. 2, 1962 [Aug. 10, 1961), No. 28876/61. Heading E2B. A coupling comprises a tubular member 1, a split sleeve 2 having curved end parts 5 and a pin 4 having a bulbous end 6. In the coupled position the pin is pushed through the sleeve 2 expanding the end parts 5 to grip the end of the tubular member 1. The pin 4 is withdrawn to detach the sleeve 2 from the member 1. The device may be used for attaching a hook to a line, as in Fig. 4, in which two couplings are used to position a mirror 11 between a line 8 and a hook 9. In this case both the hook and the line are both connected to sleeve 2 by means of eyelets. In an alternative arrangement the line is attached to the sleeve 2 and the hook to the tubular member 1 of the same coupling.
Patent GB-706651-A (GB)
Title: A hand loom convertible into a table
IPC: D03D29/00
Filed: 1951-12-11
Abstract: 706,651. Hand looms. KLAESSON, J. G. E. Dec. 11, 1951, No. 28964/51. Class 142(2) A hand loom is convertible into a table, the batten being automatically raised to its operative position when the table top is raised. Side pieces 1 carry a warp beam 3, breast beam 5 and a cloth beam 6. 'The top 2 is pivoted at 8 to members 1a of the sides 1, and when raised, moves a member 9 which lifts a link 12 pivoted at 13. Raising the link 12 lifts the batten 10 to its operative position above the top of the sides 1a. A catch 17 engages the member 9 and retains the top in its raised position. Healds 15 are suspended from a rod 14 carried by bars 7 on the underside of the table and are operated by treadles 16. When the top is lowered, the heald shafts fold down on to the top of the lowered batten. The table top may be removable.