baber/WOPTO huggingface dataset:
Patent GB-272738-A (GB)
Title: Improvements in and relating to electromagnetic sound reproducers, such as loud speakers
IPC: H04R11/00
Filed: 1926-10-09
Abstract: 272,738. Brandes Laboratories, Inc., (Assignees of Stevenson, H.). July 16, 1926, [Convention date]. Loud - - speakers; magnetic instruments; diaphragms. - In a loudspeaker in which the conical diaphragm 16 is housed within a soundamplifying cabinet 2, the diaphragm 16 and the whole electromagnetic mechanism 37, 38, 39 are mounted on the same support 3, which is formed as a casting secured to the base 1 of the cabinet. The casting is formed with a circular head 8, apertured at 9 and having an annular abutment face 11 against which an armature 12 is clamped by a threaded ring 14. The armature is preferably of the construction described in Specification 257,203. A link member 15 connects the armature with the apex of the diaphragm, which, as shown, is of elliptical outline and has its periphery connected to the elliptical shaped rim 24 by flexible damping material 27 secured to the rim 24 by a framing rim 28. Members 22, 23 secure the rim 24 to lugs 20, 21 cast integrally with the head 8. Another set of lugs 30, 31, 32, also cast integrally with the head 8, are longitudinally apertured to receive pin members 33, 34, 35 on a plate 36 carrying the electromagnetic mechanism. In order to allow for adjustment of the distance between the pole-pieces 39 and armature 12, a non-magnetic plate member 40 carrying. a screw device 41 is secured across the poles of the permanent magnet 38, the screw device 41 being advanced or retracted by rotation of a screw-threaded member 42 journaled in a bracket member 43 which spans the entire electromagnetic mechanism and is secured to integral lugs 44, 45 on the head 8. Rotation of the member 42 is effected from outside the cabinet by a knob 53 mounted on a tubular member 51, which is secured over the coned outer extremity 50 of the member 42 by a screw 52. The clamping ring 14 may be slitted around its periphery to enable it to be rotated by a tool and a spring 54 is disposed between the ring 14 and adjustable plate member 36 to prevent vibration of the parts. Specification 259,178 also is referred to.
Patent GB-854827-A (GB)
Title: An arrangement for the steering or lateral control of agricultural machines or implements
IPC: A01B69/00
Filed: 1957-08-09
Abstract: 854,827. Agricultural implements. VYZKUMNY USTAV ZEMEDELSKYCH STROJU PRAHA. Aug. 9, 1957 [Aug. 20, 1956 ; July 22, 1957], No. 25188/57. Class 6(1). [Also in Group XXXI] A device that maintains a tractor 1 and/or its attached implement 3 on a predetermined path comprises a feeler 15 co-operating in its deflected position with one or other of contacts 16, 17 that control electrically a hydraulic or pneumatic distributer valve 6 actuating a servomotor, as for example at 5, whose piston rod causes the necessary deflection. The distributer is of a known rotary type as shown at 6 of Fig. 1 operated by solenoids 18 and 19 and connected to the tractor battery through an internal circuit. Alternative embodiments, Fig. 3 (not shown), have a slide valve distributer and circuits in which the solenoids are connected through the tractor battery to earth so that the feeler itself completes the circuit by contacting the row it is wished to follow. In addition to the servomotor 5 on the implement 3, a servo motor may also be arranged in the steering mechanism of the tractor 1 so that the front wheels are deflected by operation of the feeler 15. In another embodiment illustrated in Fig. 4 the feeler 15 is omitted and the contact plates 62 and 63 are arranged to travel on either side of a guiding path, here illustrated by a row of plants. In this instance the electrical impulses are fed to amplifiers 65 and 66 which in turn operate the solenoids 46, 47 of the distributer valve 48. A further embodiment shows the pair of contact plates 62, 63 duplicated in tandem, and the apparatus arranged so that it will not be operated if a single plant in the row is out of line and only touches one of each pair of the plates at a time. Other embodiments show valve circuits similar to that in Fig. 3 but with a feeler of a type suitable for following the bottom or the side wall of a furrow. Alternatively the feeler may be mounted at the front of the tractor.
Patent GB-915276-A (GB)
Title: Improvements in voltage regulator circuits
IPC: H01F29/04
Filed: 1959-07-23
Abstract: 915,276. Boosting transformers; transformers. FOSTER TRANSFORMERS Ltd., and JENNINGS, R. E. July 21, 1960 [July 23, 1959], No. 25286/59. Classes 38 (2) and 38 (4). A voltage regulator comprises a main tapped transformer winding 6 with off-load contacts 10. 11 engageable with the taps, which are each connected through a reversely connected winding 21, 22 to an on-load selector switch 23-25 The windings 21, 22 form secondaries of a booster transformer 20 whose primary winding 14 carries a voltage variable from zero to that existing across the two halves of an auxiliary winding 13. By varying the conduction of a pair of rectifiers 16, which in. the Provisional Specification are specified to be of the siliconcontrolled type, and changing over a switch 17- 19 when the rectifiers are non-conducting, the voltage in the windings 21, 22 is raised in two stages of a quarter, to half that existing between the taps. Dependent on the position of the switch 23-25, the voltage in windings 21, 22 bucks or boosts the voltage from winding 6. An arrangement is described (Fig. 2, not shown) whereby the stages are in increments of oneeighth of that between taps, this improving the waveform of the voltage. A circuit for phasecontrolling the rectifiers is described in the Specification. Specifications 775,741 and 775,742 are referred to.
Patent GB-1244819-A (GB)
Title: Modular reel for harvesting machinery
Inventor: GIBSON CHARLES MAITLAND
IPC: A01D57/02
Filed: 1970-05-27
Abstract: 1,244,819. Reels for harvesters. UNIVERSAL HARVESTER CO., Inc. 27 May, 1970, No. 25404/70. Heading A1F. A modular reel structure 10 for harvesting machinery and the like, is composed of a plurality of modules 11, the length of the reel being decided by the number of modules incorporated. Each module 11 has a hollow centre shaft 12 with apertured flanges 13, 14 at its ends, whereby the shaft is rigidly connected by means of mounting collars 21, mounting flanges 26, 27 and bolts to hollow drive spiders 17 located between the ends of adjacent shafts 12. Near the outer ends of spider arms 18, the bat boards 46 are each pivotally connected to the arms by means of hangers 42, 43 welded to a pivot tube located in the arm, and hangers 47 welded to a carrier shaft located in the board 46 these tubes being pivotally connected by pin 50. The batboards 46 are hence rigidly fastened to each other but swing freely relative to arms 18. At each end of the structure a control spider 52 is connected to the respective drive spiders 17, located at the ends, by links 55, spider 52 rotating about a stub shaft 53 journalled in bearings in the propelling vehicle.
Patent GB-502541-A (GB)
Title: Improved device to prevent the climbing of stack-pipes and the like by cat-burglars or other unauthorised persons
IPC: E04D13/08
Filed: 1937-09-20
Abstract: 502,541. Guards for stackpipes. COOPER, A. D., and SMITH, W. H. Sept. 20, 1937; No. 25416. [Class 5 (i)] A device for preventing persons from climbing a stack-pipe 1 comprises a smooth sheet metal shield 3 secured to the pipe or wall and designed to afford no hand-hold. The shield shown is of V-section and has flanges 4 by which it is secured to the wall. In a modification, the shield is curved to embrace a portion of the pipe.
Patent GB-1136919-A (GB)
Title: Amines
Inventor: SMITH LESLIE HAROLD
IPC: C07C67/00
Filed: 1965-06-16
Abstract: 1,136,919. Amines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Jan., 1966 [16 June, 1965], No. 25473/65. Heading C2C. Dextrorotatory compounds of the general formula (wherein Ar stands for a naphthyl or alkylnaphthyl radical, or a phenyl radical bearing one or more alkyl or aryloxy substituents, and R stands for an alkyl, hydroxyalkyl, alkenyl, cycloalkyl or aralkyl radical) and their acid addition salts are prepared by (a) resolution with an optically active acid, optionally followed by conversion to the free base or a different salt, or (b)-in certain cases-hydrogenolysing a corresponding tertiary amine in which the nitrogen atom carries a hydrogenolysable substituent, or a salt thereof. The compounds of the invention are useful for the treatment of arrhythmias induced by cardiac glycosides, and may be administered in the form of pharmaceutical preparations containing them together with a diluent or carrier.
Patent GB-1399021-A (GB)
Title: Superplastic conditioning of ternary and quaternary zinc- aluminum alloys
IPC: C22C18/04
Filed: 1972-05-31
Abstract: 1399021 Altering physical properties NORANDA MINES Ltd 31 May 1972 [20 Aug 1971] 25505/72 Heading B3V A ternary or quaternary alloy of zinc and aluminium, which is capable of showing superplasticity and which has a eutectoid, is hot worked without any associated prior heat treatment, at a temperature between 205‹ C. and the eutectoid temperature of the alloy. The alloys are hot worked either by rolling, preferably to a reduction in thickness of from 90-95%, or extrusion. The alloy may be drawn after extrusion. As exemplified the third alloying constituent of the ternary zinc-aluminium alloy is copper or magnesium and the third and fourth alloying constituents of the quaternary zincaluminium alloy are copper and magnesium. Specification 1,399,022 is referred to.
Patent GB-261890-A (GB)
Title: Improvements in or relating to electric relays
IPC: H02H3/38
Filed: 1925-10-13
Abstract: 261,890. Ross, T. W., and Metropolitan- Vickers Electrical Co., Ltd. Oct. 13, 1925. Induction relays responsive to change in the power factor of an A.C. circuit and employed for changing the rate of a two-rate power meter in accordance with the power-factor of the load taken, or for switching into a circuit a synchronous condenser to maintain the power-factor of a system constant comprise two induction discs 10, 13 on a common spindle 26 carrying a contact arm 27 adapted to contact with one or other of fixed contacts 31, 32 of which contact 31 is connected to the actuating widing 33 of an ordinary contactor relay. When the power-factor reaches such a value that contact with 31 is made the contactor relay is closed to complete the circuit of an electromagnetic device 42 which produces the desired change, for example change in the rate of a power-meter. At the same time the contactor relay bridges auxiliary contacts 40, 41 and thereby completes a maintaining circuit for the winding 33 so that when the arm 27 moves away from the contact 31 no change takes place until the arm, on further alteration of powerfactor, reaches the contact 32 whereupon the winding 33 is short-circuited and the relay and the device 42 de-energized. As shown, each induction disc is energized by current windings 12, 15 connected across current transformers 16, 17 in two of the phases, and by voltage windings 11, 14 connected across two of the phases 22, 23 of a star-connected potential transformer across the line. Adjustable resistances 24, 25 in the voltage windings permit the desired range of power-factor change to be provided for by the relay. The spindle 26 may drive the contact arm 27 indirectly through a pinion or spur-wheel. In a modification, the spindle carries two compound motor elements as described acting in opposition, one being designed to exert maximum torque at a power-factor on one side of a predetermined value and the other on the other side of that value.
Patent GB-1154592-A (GB)
Title: Mixers for Pig Iron or the Like.
IPC: C21C1/06
Filed: 1966-06-08
Abstract: 1,154,592. Metal mixers. NIPPON KOKAN K.K. and NIPPON ENG. CO. Ltd. 8 June, 1966 [8 June, 1965], No. 25583/66. Heading F4B A mixer for pig-iron comprises a furnace body 1, a plurality of rockers each comprising rollers 3 adjustably mounted in a holder 4 between a carriage 5 and a bind ring 2, and a rack 6 coupled by means of a pin 9 to a projection 8 on the furnace and engaged by a motor driven pinion 7 for tilting the mixer, the adjustable mounting of the rollers 3 being such that the axis about which they rotate can be angularly adjusted so that rocking the mixer causes slight adjustment in the position of the furnace body relative to the rollers. Relative displacement of adjacent holders may also be corrected. Openings 11 and 12 are provided for discharging iron and slag, respectively.
Patent GB-1074872-A (GB)
Title: Diffusion bonding method
IPC: H01J37/305
Filed: 1964-06-19
Abstract: <PICT:1074872/C6-C7/1> Apparatus for evaporating metal 13 to be condensed on another metal 10 in a welding process (see Heading B3R) comprises, in one form, an electron beam furnace A evacuated by a pump B and including entry and exit chambers C, C' evacuated by pumps D, D'. Two or more alloying metals may be evaporated simultaneously. A metal web 10, on which strips (15, Fig.3) of the coating metal 13 are to be condensed through slots (19, Fig.2) in a molybdenum masking web 16, is drawn through the furnace by rolls 12. An electron gun G is directed at a stick 13 of the coating material fed through a shield E and evaporates the material, which then condenses on the web 10 and masking web 16.  The thickness of the coating is controlled by the speed of the web.  A cutting drum 21 severs the web into lengths. Both sides of the web 10 may be coated if a second rod 13 is evaporated on the opposite side of the web.  Instead of using a masking web, a web (40, Fig. 8) is coated over the whole of one surface in an electron-beam furnace (A) and passed between rolls (44, 45) which apply paraffin to selected areas.  Zones between these areas are then stripped of the coating metal in a bath (42) of hydrochloric acid, or an etching compound of 2 per cent HF, 25 per cent HNO3 and 73 per cent H2O may be used, after which the paraffin is removed by a spirits solution (43).  In another form, the web is pre-coated over the zones between the areas where a metal coating is required. The whole surface is then coated in the furnace, after which the pre-coating and subsequent coating are removed from the zones between the desired areas.  In a further form (Fig. 9) different metals (13, 13') may be evaporated simultaneously by the electron guns (G, G') and condensed on the web 10.  The percentages of the different metals may be controlled by the beam currents and/or by the position of the stock (13, 13') relatively to the web.  Metals which may be coated are niobium, molybdenum, stainless steel, tantalum, tungsten, rhenium, and the following metals in the platinum group; iridium, osmium, rhodium and ruthenium.  The coating metals may be titanium, or nickel followed by a layer of chromium if the metal coated is stainless steel.  As applied to coating both ends of a core formed of honeycomb cells, the core is mounted on a rotatable platform (B", Fig. 11) in a shield (D") which is heated, e.g. electrically, to a higher temperature than the core, which may also be heated electrically. After coating one end of the core, the platform is rotated to expose the other end.  Instead of evaporating the coating metal in an electron-beam furnace, it may be evaporated by resistance heating or by a laser beam.  A continuously moving length of core stock may be coated on both ends of the core in a furnace similar to that of Fig. 1.
Patent GB-1076793-A (GB)
Title: Method and apparatus for separating iodine from organic and biological substances
IPC: G01N31/12
Filed: 1964-06-22
Abstract: Organic and inorganic iodine are separated from organic and biological substances, e.g. blood, by supplying acid to the substance and burning in the presence of oxygen to separate the iodine (e.g. as T2, HI and ICl) by volatilization. The substance may be supplied with acid, e.g. HCl or H2SO4, during or only prior to the burning.  The volatile compounds formed preferably pass into a vessel of the apparatus (see Division B1) containing a scrubbing solution for absorption thereof and the iodine content is estimated by methods known per se. The total iodine content of a sample may therefore be estimated.  Employing the method of Specification 1,076,794 for separating inorganic iodine from organic iodine by adding AgCl to the substance and removing the precipitate containing inorganic iodine and then burning the supernatant substance containing organic iodine as above, the organic iodine content may be estimated.  Hence, the inorganic iodine content can be calculated.
Patent GB-237771-A (GB)
Title: Improvements in collapsible cardboard containers also available as display boxes
IPC: B65D5/52
Filed: 1924-10-29
Abstract: 237,771. Hutton, R. W. Oct. 29, 1924. Boxes formed from special blanks.-A folding box is constructed with four walls as shown in Figs. 1 - - 4 in such a way as to provide a triangular foot for tilting the box for display. The part 1, Fig. 1, forms the front wall, as shown in Fig. 5, and the part 6 the bottom; the end walls are constituted by the parts 1, Figs. 2 and 3, the parts 7 engaging slits 8 in the bottom, and the back is constituted by the part 1, Fig. 4. The part 9 folds as indicated in Fig. 5 to form the foot, a projection 10 engaging a slit 11 to hold the foot in place. Parts 2 - - 5 form top flaps for the box.
Patent GB-681182-A (GB)
Title: Improvements in electrically operated tracks for model vehicles
IPC: A63H18/12
Filed: 1949-10-06
Abstract: 681,182. Toy vehicles and runway tracks. SEYFFER, R. Oct. 6, 1949. [Dec. 22, 1948] No. 25743/49. Class 132 (iii). A model vehicle track on which vehicles are not restricted to a definite runway comprises electrically conducting laminae insulated from each other and connected in alternating sequence with a source of electricity. In Fig. 6, windings 11, 24 represent the motor windings of two vehicles which have rectifiers and sliding contacts. Conducting groups of laminae 1, 2, 3 are spaced by insulation 4 and the vehicles may be simultaneously and independently controlled by rheostats 18, 19. The laminae may lie longitudinally or transversely and, to enable a vehicle to travel continuously on the track, the sliding contacts may be mounted on the vehicle at the corners of a quadrilateral or a flywheel may be associated with the motor. The windings 11, 24 may represent, e.g. a motor and a solenoid for control or steering on a single vehicle, and other apparatus on the vehicle may be independently controlled by increasing the number of laminae in the groups. The laminae may be sprayed, deposited or galvanically applied on an insulating track base, and insulated wheels on the vehicles may be used in place of the sliding contacts. The Specification, as open to inspection under Sect. 91, comprises also relay means for change over of connections to sliding contacts when one pair of contacts is dead. A further embodiment includes a vehicle driving motor which has several windings connected to corresponding sliding contacts. Wireless and impulse control of the vehicles is specified. This subject-matter does not appear in the Specification as accepted.
Patent GB-1442807-A (GB)
Title: Lighting system
IPC: G08G1/095
Filed: 1973-06-30
Abstract: 1442807 Lighting unit MIRACLE MAKERS Inc 30 June 1973 25785/73 Heading F4R [Also in Divisions G4 and H3]  Two lights DS1, DS2 are energized alternately and produce over-lapping divergent-axis beams about a plane slightly inclined above the horizon, Fig. 1 the beams being on for only a brief period of the alternating cycle. They are particularly utilized for road hazard warning. In an embodiment transistor NAND gates are utilized to form a bi-stable 1D, 2A and monostable circuits, Fig. 2 (not shown), the alternate switching being accomplished by transistors Q1, Q6. The circuit is so arranged that a failure of a lamp does not cause a drain on the power supply.
Patent GB-518789-A (GB)
Title: Improvements in stair carpet clips or holders
IPC: A47G27/06
Filed: 1938-09-05
Abstract: 518,789. Stair-carpet fasteners. GRANT, J. W. Sept. 5, 1938, Nos. 25857 and 26643. [Class 52 (v)] A stair - carpet fastener comprises a part a secured to the riser and having a limb a<1> adapted tc embrace the edge of the carpet and a similar part d connected to the part c by a pivoted link e or .parallel links .anc adapted d to be brought down to embrace the edge of the carpet in close juxta. position to the part a In a modification the part h, Fig. 3, has :a limb h' of such a depth as to cover the part g when in position for engaging the carpet. The part g has lugs g<3> to allow clearance for the carpet :on the tread b<1>.
Patent GB-1426824-A (GB)
Title: Liquid level detecting devices
IPC: G01N11/06
Filed: 1973-05-31
Abstract: 1426824 Liquid level indicators; viscometers SOC FRANCAISE D'INSTRUMENTS DE CONTROLE ET D'ANALYSES 31 May 1973 [2 June 1972] 25994/73 Headings G1H and G1S To detect the level of liquid in a transparent tube 1 a radiation source 2 arranged to emit radiation pulses is disposed adjacent the tube and a photo-electric cell 3 is positioned, spaced from the source 2 by about 105 degrees around the tube axis, to receive any radiation internally reflected in the tube. If the tube contains liquid at the level of the detector and source, the radiation passes through the tube and liquid and none is received by the cell, but if the tube contains air, radiation is reflected at the tube/air interface 8 and received by the cell. The detector is applicable to an automatic viscometer (Fig. 3) which measures the time taken by a liquid meniscus 18 to fall between two levels 19, 20 in a tube 14 connected to a capillary 15. Two detectors are used, one at each level and each comprising a light-emitting diode 21 and a phototransistor 23. The diodes 21 are energized by a pulse generator 22 to reduce ambient light disturbances and are preferably of gallium arsenide emitting infrared radiation at 9,000A. Pulses received by the transistors 23 on passage of the meniscus 18 are processed by threshold detectors 24 and monostable circuits 25 to operate a bi-stable circuit 26 to stop and start a pulse counter 27 having a time base 28.
Patent GB-309052-A (GB)
Title: Improvements in or relating to thermionic amplifier circuits
IPC: H03F1/08
Filed: 1927-10-03
Abstract: 309,052. Bleasdale, B., Johnston, P. V., and Denison, W. E. Oct. 3, 1927. Thermionic amplifiers.-In order to prevent the building up of high-frequency currents in low-frequency power amplifiers and resultant " noise " in the loud-speaker output, a high-frequency choke 5 is inserted in the plate circuit of the first valve. The Figure illustrates three resistancecoupled valves followed by two amplifiers 9 operating in parallel. In a modified arrangement a low-frequency choke is connected in series with a coupling-transformer, and known methods of coupling the plate back to the grid through a neutralizing condenser may be employed. Reference has been directed by the Comptroller to Specifications 223,630, 240,114, and 256,649.
Patent GB-1083646-A (GB)
Title: Improvements relating to clutches
IPC: F16D25/0638
Filed: 1965-06-21
Abstract: 1,083,646. Friction clutches. DAIMLERBENZ A.G. June 21, 1965 [June 30, 1964], No. 26114/65. Heading F2C. A clutch 9 comprises plates 11, 12 on housing 4 and inner member 8, and a reaction plate 14 abutting a corrugated spring washer 15 in a groove 16 in housing 4, the clutch being actuated by piston 13. The washer 15 is pre-loaded on insertion in groove 16 and exerts a force on plates 11, 12 which remains equidistant to the force exerted by piston 13; groove 16 and an annular recess 18 in reaction plate 14 prevent the washer tilting.