baber/WOPTO huggingface dataset:
Patent GB-249144-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/245
Filed: 1926-03-12
Abstract: 249,144. British Thomson-Houston Co., Ltd., (Assignees of Ruder, W. E.). March 12, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Transformers. - Silicon steel or other sheet material used for the cores of transformers or other electrical apparatus is insulated with a coating of finely-divided mineral material adapted to withstand compression. The spreading of varnishes, as usually employed, and the consequent local contacts between the laminae with increased eddy current losses, is thereby prevented. The insulating coating may be sprayed, painted or rolled on the sheets and mav consist of linseed oil, the material known under the registered Trade Mark " Bakelite," or other hardening vehicle in which an amount of the order of 20' per cent of finely divided china clay, silica, mica or other solid insulating mineral material has been embodied. The light flaky material obtained bv heating the magnesia mica phlogopite may boemployed alternatively. After coating, the sheet material is baked.
Patent GB-445809-A (GB)
Title: Improved process of manufacturing textile articles
IPC: D04H1/74
Filed: 1935-03-05
Abstract: Smooth fibres such as rabbits' and hares' hair may be spun into yarns and felted by first subjecting them to a chemical roughening or "secreting" treatment, and then spinning them with the aid of a mucilaginous substance.  Fabric or hosiery manufactured from such yarn may be fulled with an acid bath to cause felting, e.g. with a solution of sulphuric acid of 1--2 DEG  B<\>ae., or a solution of lactic acid of 1--3 DEG  B<\>ae.  The "secreting" treatment may be effected for example by impregnating the fleece with nitrate of mercury in the cold and drying at a high temperature, the effect being to produce microscopic indentations on the fibres.
Patent GB-716346-A (GB)
Title: A method and a device or a machine for driving one or more elements in synchronism with a magnetic field
IPC: H02K57/00
Filed: 1952-03-21
Abstract: 716,346. Electric motors. TRIGGS, W. W. (Pestarini, J. M.). March 21, 1952, No. 7387/52. Class 35 A rotary or linear synchronous motor has a short-circuited moving member and its stator is energized by polyphase alternating current whose amplitude is modulated in accordance with a frequency w. different from the phase frequency W 1 . The phase' currents for a three-phase machine are thus given by: I 1 =A sin w.t, sin W 1 t; I,=A sin w.t, sin (W 1 t-2/ 3 #) I 3 =A sin w o t, sin(W 1 t-<SP>4</SP>/ 3 #). In a simple four-pole rotary form, Figs. 1 and 2, the rotor element 12 comprises a pair of coaxial rings 16 interconnected by mutually insulated groups of bars 17 spaced by a pole-pitch. Inside the rotor is a freely revolving core 11 for completing the flux path to the stator 13. The stator windings 25 are energized with three-phase current from a generator 41 which is in turn excited by a single-phase generator 40 to produce the modulated supply. In a modification, the freely rotating core 11 carries a further polyphase winding fed, like the stator winding, from an A.C. excited alternator, the rate of modulation being w o  as before but the phase frequency w, of the current being different. By this arrangement, the internal rotor 11 may drive an external load at a speed and direction depending on the difference between the frequencies of the two supplies. In a further modification, the shortcircuited bars 17 on the rotor 12 are replaced by a polyphase winding connected to a variable starting resistance, one phase only being short-circuited, leaving the others disconnected during running. The machine may operate as a frequency changer from w 1  to w, and vice versa. The principle of the invention may also be applied to the propulsion of groups of spaced shuttles along a circular or longitudinal path as shown in Fig. 10, The shuttles 71 comprise an insulating body carrying a short-circuited conducting ring. The rectilinear stator parts, 66, 67 carry three-phase windings 69, 70 energized with modulated current as described. Direct current energized braking windings 72, 73, 74, 75 are situated at each end of the shuttle travel.
Patent GB-576604-A (GB)
Title: Improvements in or relating to steam condensing apparatus
IPC: F28B3/02
Filed: 1944-04-21
Abstract: 576,604. Direct-contact condensers. ALUMINIUM PLANT & VESSEL CO Ltd., HILL, R. A., PAINE, S. W. T., and HUNNIKIN, C. April 21, 1944, No. 7400. [Class 32] A direct-contact condenser for waste-steam comprises a cylindrical shell a the upper and lower ends of which are adapted for connection in the waste-steam pipeline, and provided with several perforated, semi-circular trays b disposed horizontally one above the other along one side of the shell; each tray having an upstanding lip c forming a weir over which water, delivered to the shell through the opening e, overflows on to downwardly inclined baffles which direct it to the next tray below. The water leaves the shell through the outlets i and f. The wastesteam enters the shell through the tubular element h extending upwardly to a level above the water outlet f and provided with a hood m which prevents water passing into it.
Patent GB-207456-A (GB)
Title: Improvements in pocket lamps
IPC: F23Q2/06
Filed: 1923-03-14
Abstract: 207,456. Ruisz, L. March 14, 1923. Pocket lamps. - A pocket lamp comprises a casing 1 containing a liquid fuel holder 2, carrying a wick burner 4, and an igniting device having a ratchet pinion 8 adapted, on raising a telescopic cover part 16, to be engaged by a rackbar 14 provided with teeth upon only a short portion of its length so as to restrict the operation of a friction-wheel, mounted on the axis of the ratchet pinion, to a short portion of the withdrawal movement of the cover part. Pyrophoric material 9 is pressed against the friction-wheel by a wire 10, drawn downwards by an adjustable spring 11. and a member 12 carrying an extinguishing-cap 13, and the pivotally mounted rack-bar 14 is guided vertically in a support 7 for the friction-wheel and the ratchet pinion. A stop 19 in the support 7 is adapted to be engaged by one of the teeth or a projection on the rack-bar 14 to prevent complete withdrawal of the cover part. The rack bar may be deflected against the pressure of a spring 15 by means of a projection 20 protruding through an opening in the cover part and released from engagement with the stop when the cover part may be detached. The air supply to the burner can be adjusted by means of a sleeve 5, mounted on a stem which can be raised and lowered by a screw nut 6. The cover part is provided with air-holes, one or more windows 17 and a handle 18, which can be turned under the casing 1 when the lamp is closed.
Patent GB-891233-A (GB)
Title: Continuous process for dyeing a spun tow of polyacrylonitrile fibres
IPC: D06P5/20
Filed: 1960-03-02
Abstract: Spun tows of polyacrylonitrile fibres are dyed in a continuous manner by impregnating them on a padder with an aqueous solution or dispersion of a dyestuff having affinity for polyacrylonitrile, such as a dispersed acetate or a water-soluble basic dyestuff, and then steaming under super-atmospheric pressure, e.g. with saturated steam at 105 DEG C.-140 DEG C., in a pressure chamber of the type described in Specification 823,022.
Patent GB-185436-A (GB)
Title: Improvements relating to the prevention of electrolytic corrosion in surface condensers and like heat-exchange apparatus
IPC: F28F19/00
Filed: 1921-03-08
Abstract: 185,436. Wurstemberger, F. von. March 8, 1921. Corrosion, preventing.-In a surface condenser or like apparatus having tubes 31, Fig. 3, and a tube-supporting plate 33 made of copper or copper alloy, means are provided to prevent the generation of galvanic currents between the iron stays or like strengthening parts and the tube-supporting plate, thus preventing corrosion. The tube-plates 32 are stayed by transverse stays 34. Longitudinal stays having coverings of copper or copper alloy at the parts passing through the supporting plate may be used. The iron stay rods 61, Fig. 5, pass through the supporting plate 63 without touching it, the holes being tapered to prevent accumulation of salt deposit and rust between the stay and the plate.
Patent GB-291177-A (GB)
Title: Improvements in apparatus for treating the blood circulatory system by electrolysis
IPC: A61N1/30
Filed: 1927-03-18
Abstract: 291,177. Northcott, E., and Warford, J. W. March 18, 1927. Electric appliances; syringes. - Apparatus for treating the blood circulatory system by electrolysis comprises two syringes, each having a nozzle in the form of a hollow needle 4 which fits on the lower end 2 of the barrel 1. The plungers of the syringes are made of metal and are connected to a battery and regulating resistance. The needles 4 are inserted in two different parts of the body and the plungers drawn outwards to fill or partly fill the barrels of the syringes with blood. The battery then sends a current through the blood from one needle to the other. Fig. 3 shows a solid metal plunger 3 for one of the syringes, the plunger of the other syringe consisting of a glass rod 9, Fig. 4, with a metal disc 10 at the lower end connected by a wire 11 passing through a central bore of the rod 9 to the terminal 6. The barrel 1 of the syringe has a screw 13 for frictionally holding the plunger in any position.
Patent GB-892515-A (GB)
Title: A truck for handling material such as earth
IPC: E02F3/34
Filed: 1959-03-05
Abstract: 892,515. Tipping skips on vehicles. DE BOSREDON, P. L. March 5, 1959 [March 10, 1958], No. 7656/59. Classes 78 (3) and 78 (4). Cranked levers 3, supported on a dump truck by parallelogram linkages 6, 7 engage trunnions 2 on a bucket which is raised from the position 11 to the position 1 by extending hydraulic rams 10 pivoted between the truck and levers 9 secured to the levers 6. The bucket is tipped into the position 1<SP>11</SP> by further extension of the rams 10 after pivotally connecting levers 4 between uprights 8 on the truck and trunnions 5 on the bucket. In the position 1, the trunnions engage the cranked levers 3 to maintain the bucket level. Means may also be provided to lock the bucket to the levers 3 during transpor- 212 tation on the truck. In modifications, two or more trunnions 5 are provided on each side of the bucket and the levers 4 are either adjustable in length or are provided with a number of recesses in order that the fully-tipped position of the bucket may be obtained at a number of predetermined positions of the linkages 6, 7.
Patent GB-126451-A (GB)
Title: Improvements in or relating to Gyro Compasses.
Inventor: BROWN SIDNEY GEORGE
IPC: G01C19/38
Filed: 1918-05-07
Abstract: 126,451. Brown, S. G. May 7. 1918. Gyroscopic compasses.-The orienting of the compass is effected by applying a couple around the vertical axis under the control of the tilting movements of the gyro axis. In the construction shown in Figs. 1 and 3, the couple is produced by an air-blast from nozzles 4 and 5 of the gyro-casing 1 directed towards an opening divided by a partition 6 into two channels leading respectively to two tubes 7, 8 having nozzles 7<1> and 8<1>. Normally, the distribution of air is symmetrical and the opposing reactions from the nozzles 7<1>, 8' are equal; tilting of the gyro casing with respect to its supporting ring 3 produces a difference in the amounts of air delivered and a couple is produced thereby. The gyro-casing may be either pendulous or top-heavy. The couple may be produced electro-magnetically as by means of a motor, the magnetic effect of the stator of which is controlled according to the tilt.
Patent GB-1125491-A (GB)
Title: Process and apparatus for removal of foulants from circulating cooling water
IPC: F28C1/02
Filed: 1966-02-22
Abstract: 1,125,491. Cooling liquids by direct contact with air; cooling systems. W. R. GRACE & CO. 22 Feb., 1966 [25 Feb., 1965], No. 7735/66. Headings F4K and F4U. Cooling water circulated through a hot body, e.g. a heat exchanger 33, is thereafter passed through a cooling tower 10 and is then treated in a liquid cyclone separator 24 to remove contaminents, such as bacteria absorbed from the air in the cooling tower or scale or corrosion products from the circulation system, the water then being recirculated through the heat exchanger 33. The cooling tower may comprise an inlet 12 to a manifold 16 equipped with spray nozzles 14, the water falling in counter flow to atmospheric air admitted to the cooling tower through louvres 17 and drawn through the tower by means of a fan 18. The cooled water is discharged through a sump 19 and pumped into the cyclone separator 24 where it is injected under pressure tangentially within a cylindrical top portion 26, forming a vortex. The contaminents collect around the periphery of the separator as a sludge which passes down the conical walls of the lower portion 27 of the separator and out through a discharge conduit 29. The cleaned water is discharged upwardly through an overflow pipe 31. A proportion of the water may by-pass the separator through a conduit 34, in which the flow is controlled by a valve 36. Additional water to make up for that lost in the separator is admitted by means of an inlet line 35 within the cooling tower.
Patent GB-538502-A (GB)
Title: Improvements in electro-magnetically operated contactors
IPC: H01H1/54
Filed: 1940-04-30
Abstract: 538,502. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., and TUPPEN, E. B. April 30, 1940, No. 7754. [Class 38 (v)] The pressure between the contacts 9, 11 of an electromagnetic contactor is increased by the action of the magnetic field of the blow-out magnet 1. When the main electromagnet (not shown) is energized, the armature moves its full distance.and rotates a shaft 8 moving the contact 9 into engagement with the contact 11 which gives way slightly straining a biassing spring 13. A spring 21 may also be compressed owing to the movement of the contact 11. The blow-out magnet 1 is now energized and attracts an armature 18 which further compresses the spring 21.
Patent GB-876819-A (GB)
Title: Method of producing semiconductor devices
IPC: C23F1/02
Filed: 1959-03-05
Abstract: <PICT:0876819/III/1> <PICT:0876819/III/2> A recess or pit in a body of silicon is produced by crystallographically damaging a portion of the body and etching that portion to provide a substantially flat bottomed pit.  Fig. 1 shows a silicon body 4 subjected to the predetermined pressure of a 3-sided diamond point 6 by means of a weighted lever 8.  The body is then etched in a boiling 30% solution of potassium hydroxide for 10 minutes.  Fig. 2 shows a silicon wafer 2 suitable for a transistor having an emitter recess 4 and a collector recess 6 produced as above.  Sodium hydroxide may be used as the etchant and additives such as ethylene glycol (which tends to flatten the bottom of the recess) or sodium carbonate (to raise the boiling point) may be used.  The effect of different concentrations of etchant on recess shape is discussed.  The crystallographic damage may be caused by rotation of or scratching by the diamond point.
Patent GB-1033695-A (GB)
Title: Dibasic acid derivatives of 5-amino-n-alkyl-2,4,6-triiodoisophthalamic acids and preparation thereof
IPC: A61K49/04
Filed: 1964-02-25
Abstract: New compounds of formula <FORM:1033695/C2/1> where R is alkyl (1-8 C) and R1 is the acyl group of a dicarboxylic acid of not more than 16C, and pharmaceutically acceptable salts, are prepared from the appropriate amine and diacid halide.  Esters are also mentioned. Intermediates prepared are: 5-nitro-N-propylisophthalamic acid, the 5 - amino - compound, and the 5-amino-2,4,6-triiodo-compound; and corresponding N-butyl-compounds.ALSO:Compositions comprise isophthalamic acid derivatives of formula <FORM:1033695/A5-A6/1> where R is alkyl (1-8 C) and R1 is the acyl group of a dicarboxylic acid of not more than 16 C, and salts thereof with pharmaceutically acceptable cations, in forms (e.g. solutions, suspensions for parenteral administration) useful as X-ray contrast agents.  Esters are also mentioned.
Patent GB-652302-A (GB)
Title: Improvements in cartons for containing and dispensing powdered substances
IPC: B65D83/06
Filed: 1948-03-16
Abstract: 652,302. Dispensing cartons for powdered substances. LEVER BROS. & UNILEVER, Ltd., and EDWARDS, G. H. March 16, 1948, No. 7852. [Classes 18 and 66] An unlined carton for containing and dispensing powdered substances has two or more of its end closure flaps formed with one or more holes 6, 7, which co-  incide when the flaps are superimposed and are closed by a piece of paper or like easily frangible material 8 sealed between the two outermost flaps 4, 5. Specification 30195/05, [Class 18], is referred to.
Patent GB-954003-A (GB)
Title: A device for axially locking gudgeon pins in connecting rod and piston assemblies
IPC: F16J1/18
Filed: 1963-02-27
Abstract: 954,003. Securing gudgeon-pins. STAL REFRIGERATION A.B. Feb. 27, 1963 [June 18, 1962], No. 7903/63. Heading F2T. A fully floating gudgeonpin 3 is located axially by a locking member 4 secured axially to the pin between adjacent faces of the connecting - rod 2 and the piston 1. The member 4 may be a split resilient ring which may either frictionally grip the pin or engage a groove therein.
Patent GB-622429-A (GB)
Title: Improvements in domestic wash boilers
IPC: D06F1/10
Filed: 1947-03-22
Abstract: 622,429. Washing - boilers. SLACK, M. H. March 22, 1947, No. 7908. [Class 64(i)] The lid 11 of a domestic washing boiler is provided with a shouldered nut 15 or shouldered boss projecting from the underside of the lid to engage a slot 17 or the like formed in or on the rim 16 of the top or in one of the vertical sides of the boiler casing, to support the lid when the boiler is open. The rim 16 may be bent outwardly in the neighbourhood of the slot. A bolt or stud 14 carrying the handle 10 screws into the nut or boss. According to the Provisional Specification, the slot is keyhole or pear shaped.
Patent GB-349178-A (GB)
Title: Improvements in or relating to fertilizers and methods of making the same
IPC: C05F5/00
Filed: 1930-03-11
Abstract: Fertilizers are produced from distillery and beetsugar plant waste liquid by mixing the liquid with sulphuric acid and atomizing the mixture in a current of heated air so as to dry the mixture into solid particles.  The product may be mixed with other fertilizing substances, e.g. phosphoric acid.  The waste liquids are mixed with sulphuric acid in mixing tanks 10 provided with heating coils 11 and agitators 12.  The mixture is discharged into a tower 1 by a pipe 17 terminating above a disc 18 rotating at a very high speed whereby the liquid is atomized.  The particles of liquid in falling down the tower are dried by contact with hot air circulating in the tower. The air, heated externally or by a burner in a chamber 2 above the tower, passes into the tower through openings 7 in the <PICT:0349178/III/1> <PICT:0349178/III/2> chamber 2 and leaves the tower through openings 6.  The air is circulated by a blower 4 and conduits 5a, 5b, 5d through the tower and a dust collector 30.  The dried particles settle on the floor of the tower and may be discharged through an outlet 29 by arms 25 secured to a rotating shaft 27.
Patent GB-907516-A (GB)
Title: Improvements in or relating to transportable containers fitted with pneumatic discharge arrangements
Inventor: GLENDINING STANLEY ARCHIBALD
IPC: B60P3/24
Filed: 1960-03-07
Abstract: 907,516. Vehicles with pneumatic discharge. AMALGAMATED LIMESTONE CORPORATION Ltd. March 2,1961 [March 7, 1960], No. 8000/60. Class 78 (4). The tipping body of a vehicle in which discharge is assisted pneumatically, is divided into compartments arrangect so that all the material in the container may be discharged through a single outlet near one end. The body illustrated is divided into two compartments 11, 12 by a partition 10 shaped similarly to the end wall 15 of the body and provided with a hinged gate 17 opened by a hand wheel when the compartment 11 is to be discharged through the compartment 12. Air to assist the discharge is admitted at 20, 21 from a pipe 22, but the admission 20 may be omitted. A balancing pipe 24 may equalize the pressure in the two compartments or, alternatively, a non-return valve 23 may prevent the pressure in the chamber 11 falling below atmospheric. More than one partition may be provided and the compartments may be provided also with individual discharges which may communicate with a common discharge pipe, or with a series of pipes all discharging at the rear of the vehicle. Alternatively the compartment 11 may discharge through a pipe laid within the compartment 12.
Patent GB-1215136-A (GB)
Title: Improvements in nozzles or shrouds for ships' propellers
Inventor: HANNAN TERENCE EDWIN
IPC: B63H5/14
Filed: 1967-02-20
Abstract: 1,215,136. Ship propulsion. KORT PROPULSION CO. Ltd. 5 Feb., 1968 [20 Feb., 1967], No. 8001/67. Heading B7V. A nozzle 1 encircling a ship's propeller 3 has arcuate circumferentially spaced ducts 13 inclined to the longitudinal axis of the nozzle and positioned aft of the propeller tip. The nozzle is fixed or turnable. In Fig. lb the fore and aft sides of ducts 13 are parallel and partconical. During operation of the propeller ahead water flows through the ducts 13 out of the nozzle, to prevent a region of stagnant water forming. During operation of the propeller astern water flows through the ducts into the nozzle. In Fig. 3b (not shown) ducts 28 are inclined in the opposite direction to reduce cavitation. The ducts may be curved in crosssection.
Patent GB-316998-A (GB)
Title: Improvements in or relating to screen processes for illustration printing
IPC: H04N1/23
Filed: 1929-03-12
Abstract: 316,998. Siemens & Halske Akt.-Ges. Aug. 8, 1928, [Convention date]. Drawings to Specification. Photo-mechanical printing-surfaces.-To obtain enlarged or reduced reproductions of telegraphically-transmitted or other pictures having screen lines of varying widths, a photographic reproduction is made using a line screen (say 20 to 50 per cm.), the ruling being disposed at an angle with the lining of the picture.
Patent GB-908904-A (GB)
Title: Cargo ship
IPC: B63B25/18
Filed: 1960-03-07
Abstract: 908,904. Cargo ships. WESER A.G. March 7, 1960 [March 5, 1959], No. 8067/60. Class 113. The parts 5 of the 'tween deck of a cargo ship are pivotally connected to the fixed parts 4 to be movable to the position indicated by full lines so that the hold may be completely filled when transporting loose bulk cargo. The part 5 is moved by tackle located in the locker 10 and connected to the eye 9 which joins two chains 6, 7, the former connected to the hatch coaming 8 and the latter to free edge of the part 5. When in their lowered position the parts 5 support a central tween deck part 1 which is removable.
Patent GB-143197-A (GB)
Title: Improvements in or relating to toothed gear wheels
IPC: F16H55/08
Filed: 1920-03-18
Abstract: 143,197. Soc. des Moteurs Gn¶me et Rhone. May 13, 1919, [Convention date]. Toothed wheels.-The outline of the tooth of a toothed wheel is an are of a circle, the centre of which is obtained by the following method. A tangent TK is drawn to the pitch circle, and a line TY is drawn at 30 degrees to TK. From the centre 0 of the wheel a perpendicular OC to the line TY is produced to meet the line TK at K. M being the pitch of the gear, a point F is formed such that CF=CK/10M, and from F as centre an arc is described through the point T.