baber/WOPTO huggingface dataset:
Patent GB-1175026-A (GB)
Title: Loud Speaker System for Producing Pulsato And Celeste Effects
Inventor: LESLIE DONALD JAMES
IPC: G10H1/047
Filed: 1968-07-19
Abstract: 1,175,026. Electronic musical instruments. D. J. LESLIE. 19 July, 1968 [28 July, 1967], No. 34566/68. Heading G5J. [Also in Division H4] In a loudspeaker system for an electronic organ, two of the loudspeakers 48 and 82 are caused to rotate to produce pulsator or celeste effects by means of a two-way ganged switch S 1  to S 4  which alters the speed of rotation of the loudspeaker 48 and simultaneously causes a filter to be switched in and out of circuit. The speakers are enclosed in a rectangular cabinet 10, the medium and high range elliptical loudspeakers 36, 38 and the bass loudspeaker 12 all being enclosed in separate compartments 30, 32 and 14 respectively to reduce intermodulation. Louvred openings 46 provide for the outward passage of air from speakers 36, 38. Loudspeakers 48 and 82 are enclosed in a lower compartment 28 of cabinet 10. Loudspeaker 48 comprises a twin horn which is rotated by means of a two-speed motor 60 through pulleys 58 and 62 and belt 64. Loudspeaker 82 is an elliptical type mounted in a cylindrical drum 72 equipped with a slot 80 for the outward passage of air from the loudspeaker. The drum is similarly rotated by a single speed motor 86, connections to the loudspeaker passing through slip rings 83. Louvred opening (26) in the wall of compartment 28 provides for the outward passage of air from loudspeakers 12, 48 and 82. Fig. 4 (not shown) shows the wiring diagram of the loudspeakers in which three input channels, non-tremolo, tremolo and pedal are provided. A random phase shifter is provided in the lead to loudspeaker 36 to introduce a randomly varying frequency shift of the order of one or two cycles per second.
Patent GB-467200-A (GB)
Title: Improvements in or relating to floor cleaning machines
IPC: A47L11/16
Filed: 1935-12-13
Abstract: 467,200. Floor - cleaning machines. BABBS, A. J., and SIMPSON, A. Dec. 13, 1935, No. 34579. [Class 138 (i)] A floor-cleaning machine has two or more brushes or the like rotating substantially in the same plane so that as they rotate the area traversed by one brush overlaps the area traversed by the adjacent one, cleaning or polishing material being supplied to the floor within the area traversed by the brushes. In the construction shown, three brushes a of rectangular form are arranged on vertical bearings b, the outer brushes having their longitudinal axis at right angles to the longitudinal axis of the centre brush. The brushes are geared together by intermeshing pinions c and are mounted on hollow spindles d through which cleansing or polishing fluid or powder is fed from a trough l. The brushes are pressed towards the floor by springs d<3>. When the cleansing material is of a stiff nature the supply to the brushes may be controlled by means of one or more pumps operated by a cam from the gearing driving the brushes. Specification 436,286 is referred to in the Provisional Specification.
Patent GB-920668-A (GB)
Title: Transducer systems
Inventor: HOLMES PAUL JOHN
IPC: G01P15/10
Filed: 1960-10-10
Abstract: 920,668. Measuring electrically. BORGWARNER CORPORATION. Oct. 10, 1960, No. 34682/60. Class 40 (1). Apparatus for measuring acceleration comprises two stretched conductive strings attached to either side of a seismic mass, with each incorporated in an electrical circuit which oscillates at the natural frequency of vibration of the string, whereby linear acceleration produces a displacement of mass 16 and a proportional frequency difference between the two circuits. As shown (Fig. 1), a seismic mass 16, supported by radial wires 38 between hollow circular discs 42, carries two conductive strings 12, 14 between magnet systems 26, 28, each string forming one arm of a bridge 50, 52 whose output and input are coupled via an amplifier 54, 56 so that the strings vibrate at their natural frequencies which are also the frequencies of the outputs of amplifiers 54, 56, thereby providing an indication of the displacement of mass 16. Electrical coupling between the two circuits is neutralized by an adjustable resistor 102, and mechanical coupling is neutralized by an adjustable capacitor 110, the adjustable components being connected as shown between similar junctions of bridges 50, 52. The coupling capacitor 110 may be increased, and augmented by a coupling capacitor 114 between the other bridge diagonal points, to the stage where a current is fed directly through a string to produce a force in association with its magnet system which prevents vibrations due to mechanical coupling between the two strings. The electrical response due to the mechanical coupling may alternatively be minimized by making the planes of the magnet systems 26, 28 perpendicular.
Patent GB-476714-A (GB)
Title: Method of scanning images in television systems
IPC: H04N3/10
Filed: 1936-12-18
Abstract: 476,714. Television. BROWDE, H. Dec. 18, 1936, No. 34814. [Classes 39 (i) and 40 (iii)] A line of the picture is projected on a photoelectric cathode C on which a line, at the same potential as the electrostatic field formed by cooperating electrode AB, separates parts of the cathode which do, and do not, emit electrons, and moves along the cathode with change of the potentials of the electrodes. An impedance L in the photoelectric circuit produces a voltage which is proportional to the illumination on the moving boundary, thus giving signals corresponding to successive elements of the image. The cathode is a cylindrical filament at right-angles to the other electrodes which have the form of plates. According to modifications : the anode B is screened by one or more grids, Fig. 4 (not shown) ; the anode is in the form of a grid, and the issuing electrons are amplified by secondary emission, Fig. 5 (not shown) ; the cell is made like a variable-Á valve, Fig. 7 (not shown). To eliminate the influence of the glass of the bulb, the system is screened by a metallic shield, to which such a potential is applied that electrons cannot reach the shield. The inductance L gives a voltage which is proportional to the differential coefficient of the photo-electric current. The voltage, which is introduced in the inductance through the cathode-anode capacity from the generator g displacing the boundary, is compensated by supplementary coupling between the inductance and the generator. According to a modification, a high-frequency voltage is also applied to the cathode to cause small fluctuations of the boundary as it moves along the cathode, and the inductance is replaced by an oscillatory circuit tuned to the high-frequency, Fig. 4 (not shown). The high-frequency voltage across the circuit is detected, and, after amplification, modulates a transmitter, and supplementary high-frequency voltage is added directly to the oscillatory circuit from the high-frequency oscillator to improve the detection. Alternatively, the high-frequency voltage across the circuit is immediately amplified and transmitted, and the surplus high-frequency energy, which passes directly through the capacity of the cell, is compensated by supplementary coupling to increase the depth of modulation. When using an intermediate film, the uniformly moving film is projected on the plane of the cathode. For direct television, an image is thrown on the cathode by a mirror or other moving optical system. Alternatively, the object is illuminated by a moving strip of light and projected on the cathode. Specification 453,698 is referred to.
Patent GB-924454-A (GB)
Title: A method of obtaining granulated ammonium nitrate fertilizers
IPC: C05C1/02
Filed: 1960-10-11
Abstract: A granular fertilizer is obtained by coating granules of ammonium nitrate with a powdered non-deliquescent material in the presence of water in an amount between 3 and 10% by weight based on the ammonium nitrate, the proportion of coating material being such as to give a coated granule containing 15-30% by weight of nitrogen.  The ammonium nitrate may be in the form of the commercial granular product or may be obtained by spray drying from a concentrated aqueous solution. The non-deliquescent material may be limestone, natural phosphate or superphosphate.
Patent GB-994467-A (GB)
Title: Textile machine
IPC: B65H67/02
Filed: 1961-09-28
Abstract: 994,467. Stripping reserve windings from cops. W. REINERS. Sept. 28,1961 [Oct.13, 19601, No. 34883/61. Heading D1J. In a textile machine using yarn unwound from a cop with a reserve coil on one end, the cop before being unwound is supported in a magazine 10, Fig. 4, from which it is transferable to an unwinding position, means are provided to draw off the coil axially before the cop is so transferred and gripper means are also provided to hold the cop against axial movement while the coil is being drawn off. In Fig. 1, the gripping-means comprise cushions 2, 2<SP>1</SP>on arms 3, 3<SP>1</SP>secured to shafts 4,4<SP>1</SP> adapted to be rocked by belt cranks 5, 5<SP>1</SP>urged towards one another by a spring 6 and connected at 7, 7<SP>1</SP>to a lever 8 operated by a rod 9. In Fig. 3, the means comprise pivoted curved jaws 31, 32 connected at 34 to be movable to and fro by a double lever to which they are connected at 35. In Fig.4 cops arranged in a magazine 10 are supported by stops 11,12a. The lowermost cop has already had its reserve coil removed in a manner to be described; when it is required on the using machine, a rod 13 is operated to withdraw stop 12a so that the cop descends on to a stop 12e which is simultaneously projected. When the rod 13 is again operated to project the stop 12a to support the following cop, the stop 12e is withdrawn and the lowermost cop tilts about stop 11 to fall into a shoot 14. At the first operation of the rod 13 a contact is closed to energize a motor 16 to rotate a shaft 17 carrying four cams. The first 18 operates a contact 22 to lock-in the motor circuit; the second, 23, operates a double lever 24 to operate the cop-gripping means, the third, 25, operates a lever 26 controlling a device 27, 27<SP>1</SP> for stripping the reserve coil which is then held in a suction-tube 30, and the fourth, 36 operates a lever 37 for lifting the cop 1<SP>1</SP>off the lowermost one to facilitate its release. The fourth cam and its associated lifting means may be omitted.
Patent GB-800589-A (GB)
Title: Interchangeable lens system for photographic purposes
IPC: G02B15/173
Filed: 1956-11-15
Abstract: 800,589. Optical objectives. ZEISSSTIFTUNG, C., [trading as ZEISS, C., [Firm of]]. Nov. 15, 1956 [Nov. 19, 1955], No 34910/56. Class 97(1) A lens system which can be interchanged with the front component of a basic objective, consisting of an biconcave component between two collective components, to form an objective having a greater focal length than the basic objective but the same back focal length consists of at least three air spaced components, one airspace being bounded by surfaces concave towards the diaphragm of the basic objective and having radii between 0.12f and 0.28f, where f is the focal length of the entire objective, the radius of the near surface of the airspace being at least 0.8 and at least 2.5 times as great as that of the front surface, the length of this airspace being between 0.02f and 0.15f and less than twice the distance between the rear surface of the airspace and the last surface of the interchangeable system which distance is between 0.03f and 0.30f. In addition, the component in front of the airspace is dispersive, the sum of the prisms of all the surfaces in front of the aiirspace being between 0.02f and 0.15f -4.0/f and -1.0/f and that of all the surfaces behind the airspace is positive and lies between 1.5/f and 6.0/f while the sum of the prisms of the surfaces bounding the airspace is negative and lies between -3.0/f and -0.1/f. Numerical data are given 'for one example of the system shown in which the lenses LI, LII, LIII, LIV and LV form the interchangeable system while the lenses LIX, LVI, LVII, LVIII form the basic objective, the lenses LVII and LVIII being cemented together and the lenses LI and LII also being cemented together. Data are also given for one example of such a system in which the lenses LIII and LIV also are cemented together, for one system in which the lens LIII is dispersive and is cemented to the doublet LI, LII and for one system in which a single position meniscus is placed before the lens LI, the lens LIII being omitted.
Patent GB-521992-A (GB)
Title: Improvements in or relating to television transmitter cathode ray tubes
IPC: H01J29/43
Filed: 1938-11-30
Abstract: 521,992. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1938, No. 34945. Convention date, Nov. 30, 1937. [Class 39 (i)] A photo-sensitive mosaic electrode has on a mica base 14 a layer 16 of higher metal-oxide such as manganese dioxide, vanadic' oxide, chromic oxide or stannic oxide i.e. an oxide higher than the monoxide. On this is deposited the usual discrete oxidized silver elements 17 which are sensitized with caesium 18; the caesium which falls on the layer 16 between the discrete elements becomes oxidized reducing the metal oxide to the monoxide and itself losing its conducting property. The metal oxide may be formed on the mica base inside the cathode ray tube or before the base is inserted in the tube. The discrete elements are deposited on the metal-oxide either from finely divided silver oxide or from a film of silver subsequently segregated into particles and oxidized. The back of the mica base has the usual continuous conducting layer.
Patent GB-752782-A (GB)
Title: Improvements in and relating to electric circuit breakers with gas blast arc-quenching
IPC: H01H33/70
Filed: 1954-12-02
Abstract: 752,782. Gas-blast switches. NAAMLOOZE VENNOOTSCHAP COQ. Dec. 2, 1954 [Dec. 19, 1953], No. 34950/54. Class 38(5) A circuit - breaker in which the arc is extinguished by compressed gas comprises at least two conductive contact holders 4, 5, supported and spaced apart by insulating tubes 1, 2, 3, at least two annular contacts 8, 9 supported by the holders 4, 5, the centtral opening 12, 13 of each contact being closed when the circuit - breaker is . closed but being opened during the opening of the circuit-breaker and gas outlet means comprising insulating tubes 7 enabling the gas to flow through openings 12, 13 to the outside, these tubes 7 communicating with the opening 13 of contact 9 only and passing through contact 8 to a distance therebeyond, whereby the gas discharged by the tubes 7 does not come into contact with the contact 8. The tubes 7 may be mounted around the switching spaces 17, 18, but are spaced apart so that gas supplied at 20 may flow through space 19 and between the tubes 7 into spaces 17, 18. Openings 12, 13 are normally kept closed by switching contacts 14, 15 connected in series, which act as valves and may be operated by the extinguishing gas, the driving mechanism being enclosed in cylinder 16. Opening of the contacts 14, 15 causes the gas to escape through openings 12, 13 and extinguish the arcs. The gas from space 17 flows through opening 12 to space 21 and outlet 22. The gas from space 18 flows through opening 13 to space 10, through tubes 7-to space 21 and outlet 22, thus avoiding contact with contact 8.
Patent GB-360212-A (GB)
Title: Improvements in and relating to discs, covers and the like for wheels
IPC: B60B7/02
Filed: 1930-11-20
Abstract: 360,212. Vehicle wheels. PUGH, J. V., Meriden House, Meriden, Warwickshire, and LINNETT, A. J., 239, Broad Lane, Coventry. Nov. 20, 1930, No. 35012. [Class 144 (i).] The cap 3 for closing the outer end of a wheel hub 1 is secured by means of a transverse member such as a plate 5, Fig. 2, or a spider 25, Fig. 5, which is drawn into engagement with a flange 2 on the hub by a central bolt 9. The cap 3 may be plain or corrugated, and the bolt head, which is countersunk into the cap, is preferably also corrugated. Specifications 347,275 and 357,213 are referred to.
Patent GB-1241415-A (GB)
Title: Improvements in and relating to control systems for prime movers
Inventor: GLOVER BRIAN WILLIAM
IPC: H02P23/00
Filed: 1967-07-31
Abstract: 1,241,415. Steam turbines. C. A. PARSONS & CO. Ltd. Aug. 7, 1968 [July 31, 1967], No. 35087/67. Heading F1T. [Also in Division G3] In a multi-stage prime mover, such as a steam turbine, having working fluid admission and interstage valves, the admission valve is controlled by a first voltage signal and the interstage valve by a second voltage signal, the latter being produced by supplying the first signal to an electrical circuit comprising a variable gain amplifier, a reference signal and integrating means. In one embodiment, the control system comprises a variable gain direct-coupled amplifier 3 receiving at its input 1 a first voltage signal corresponding to the degree of opening of the turbine admission valve. This signal is derived from the turbine governor and corresponds to the speed and/or load on the turbine and may be used to control the admission valve by an electro-hydraulic servomechanism. A second voltage signal obtained at the output 2 is used to control one or more interstage valves by way of further electro-hydraulic servomotors. The circuit is arranged so that during normal running the interstage valve opening remains constant at nearly its maximum value whilst the admission valve opening varies linearly with load. However, in the event of a complete shedding of load the admission and interstage valves reach the fully closed positions simultaneously regardless of their respective openings prior to the shedding. This is achieved by adjusting the gain of amplifier 3 by means of variation in the voltage output of an integrating amplifier 5. The latter compares at its input the interstage valve control voltage from output 2 with a reference voltage signal from a source 4 corresponding to the required constant opening of the interstage valve. In a modification, Fig. 3 (not shown), the electrical circuit is arranged so that the opening of the interstage valve is matched to that of the admission valve in the range between half and full load but below half load the interstage valve opening remains constant. This is achieved by including in the circuit a level detector (7) which compares the voltage signal from input 1 with the reference value from source 4. For signals from input 1 lower than the reference signal, the level detector (7) rejects the input voltage and passes only the reference signal so that the interstage valve opening remains constant over this range. However, for signals from input 1 higher than the reference signal, the level detector (7) gives an output equal to the voltage at input 1 so that the opening of the interstage valve is matched to that of the admission valve over this range. Means are provided to limit the gain of amplifier 3 at very low loads.
Patent GB-991485-A (GB)
Title: Phenyl-indolyl-aminoalkanols
Inventor: ROOZEMOND ROBERT CORNELIS
IPC: C07D209/14
Filed: 1962-09-14
Abstract: The invention comprises compounds of the formula <FORM:0991485/C2/1> where R1 is hydrogen, halogen or alkoxy, R2 is hydrogen, alkyl or aralkyl, R3 is hydrogen or alkyl, R4 is hydrogen, halogen, alkoxy, alkyl or trifluoromethyl, A is C3-6 alkylene and B is alkylamino or dialkylamino, or a saturated mononuclear 5- or 6-membered heterocyclic group attached via a nitrogen atom; acid addition salts thereof; and their preparations by reacting an appropriate indolyl phenyl ketone with a compound BAMgX (where X is halogen) and hydrolysing the product.  Indol-3-yl o-tolyl ketone and p-tolyl ketone are prepared from indole and o- and p-toluyl chloride respectively, in the presence of ethyl magnesium iodide.  Indol-3-yl m-tolyl ketone is prepared from indole, m-toluylic acid dimethylamide and POCl3.  The compounds of the invention and their non-toxic acid addition salts possess antiallergic and sedative properties, and are employed in pharmaceutical preparations with a pharmacologically acceptable carrier.  They may be administered orally, e.g. as tablets, pills, capsules, suspensions, emulsions, syrups or elixirs, or parenterally.
Patent GB-774669-A (GB)
Title: Improvements in or relating to rotary drum mixers and like apparatus
IPC: B01F29/64
Filed: 1955-12-08
Abstract: 774,669. Mixing-machines. NEWELL & CO., Ltd., E. and HOWDEN, P. Dec. 8, 1955, No. 35225/55. Class 86 [Also in Group XXVI] In a rotary drum mixer of the kind in which-material is fed through a shoot 6, carried by a stationary plate 5, into one end of a rotary drum 1 and is progressed by scroll shafts 11, 12 to a discharge shoot 7 at the other end of the drum, a seal is provided between the stationary plate 5 and the drum 1. The seal comprises an annular flange 25 secured to the end of the drum 1 and carrying arcuate sealing strips 27 which are adapted to lie close to the outer surface of a flanged annular member 24 which is secured to the plate 5. A series of spaced deflecting blades 28 extend inwardly from the drum periphery and have their tips lying close to the surface of the annular member 24. Slots in the members 27 permit radial adjustment thereof with respect to the flange 25. The drum is driven by a motor 8 through worm gearing 9 and a toothed girth ring 10. The shafts 11, 12 are driven by a motor through a gear box 21 and the shafts interact with the drum to lift material up the right-hand side of the drum, as shown in Fig. 2, before it cascades towards the bottom of the drum. Specification 717,379 is referred to.
Patent GB-1060738-A (GB)
Title: Device and method for shaping and positioning dynamoelectric machine end turns
Inventor: LILL JOHN FRANCIS
IPC: H02K15/085
Filed: 1965-08-18
Abstract: 1,060,738. Winding stator cores. FORT WAYNE TOOL & DIE Inc. Aug. 18, 1965, No. 35403/65. Heading B3A. In a gun-type stator winding machine for winding distributed winding type stator cores, bulb members 50, 52 form the end turns of the coils and guide them into slots 100, the stator core (20) lying between mounting members 42, 44 (Fig. 1, not shown). The bulb members are mounted on shank portions 38, 40 and are urged outwardly by means of springs (306) (Fig. 22, not shown). Spring-loaded lock members 252 abut the ends 270 of openings 272 in the shank portions. The smallest pitched coil is the first to be wound and it is evenly packed into the slots 100 defined by surfaces 42, 44 and 54, 56 which include blade members (256) (Fig. 22), preferably to a square crosssection. The next coil may be wound in the slot 100 on top of the first coil. An actuating member 180 then engages a push-rod 244 and a cam portion 276 thereon pushes up a releasing member 274 to disengage one lock member 252. The other member 252 is similarly released by transmitting. the push-rod thrust through a pin 286. The bulb members 50, 52 move outwardly until the notches 262 engage the ends 270. The next coil is wound into a slot defined by the surfaces 54, 56, including blade members (258) (Fig. 22) and the previously wound coil(s). The blade members (256), (258), (260) locate in slots (66a), (66b) (Fig. 21, not shown) in the bulb members 50, 52. When the wound stator is completed, the apparatus is reset manually. In alternative embodiments the members 252 are replaced by disengageable leaf spring lock members (Fig. 13, not shown) or a turret may be provided at either side of the core carrying at least two shroud members having different lengths whereby the axial width of the slot is varied (Fig. 18, not shown), by engaging the shroud members in turn.