baber/WOPTO huggingface dataset:
Patent GB-1153125-A (GB)
Title: Data Transmission System
Inventor: BECKER FLOYD KENNETH
IPC: H04L27/02
Filed: 1966-05-27
Abstract: 1,153,125. Digital transmission systems; automatic gain control; automatic phase control. WESTERN ELECTRIC CO. Inc. 27 May, 1966 [28 May, 1965], No. 23773/66. Headings H3A, H4P and H4R. In a digital vestigial sideband transmission system binary signals are converted to multilevel signals which amplitude modulate a carrier. The carrier is suppressed prior to transmission. At the receiver the signals are demodulated and converted back to binary form. Clock signals for control of the demodulator &c. are derived from the received signals, the phase being varied in accord with low frequency components of the demodulator output. The data signals are preceded by starting signals for phasing the clock signals. Pilot signals at the upper and lower ends of the modulated signal spectrum are transmitted. The received modulated data is first passed via an A.G.C. circuit to a band-shaping circuit which has the inverse effect to that of the vestigial sideband filter at the transmitter. Its output passes via a demodulator to an automatic equalizer which compensates for distortion in the transmission path and which feeds a decoding circuit. The latter produces the required binary signals. The A.G.C. circuit comprises a chain of photo-resistors which acts as an attenuator. Lamps illuminating the photoresistors are energized by a circuit which is controlled by the lower pilot filtered from the attenuator output. The demodulator is as described in Specification 1,153,126 and is fed by a harmonic of the carrier frequency f<SP>1</SP> c  derived by a recovery circuit fed by the pilots. This frequency f<SP>1</SP> c  is the carrier fc plus any shift occurring in transmission. The phase of the carrier signal fed to the demodulator is controlled in accord with the low frequency components of the demodulator output. The equalizer sets itself to provide the required compensation by reference to pulses sent during the starting signal. During starting, the equalizer co-operates with a second recovery circuit so that correct phasing is attained rapidly, phasing taking place in coarse and then fine steps as described in Specification 1,153,124. During starting the second recovery circuit receives the starting pulses, and, during data transmission, signals from the decoding circuit. Error detection circuits (not described) follow the decoder and may correct some errors and call for repetition in the case of others. Extensive error causes 180 degrees phase shift at the modulator in case it has slipped 180 degrees.
Patent GB-220486-A (GB)
Title: Improvements in neutralising filters for radio receiving sets
IPC: H04B1/16
Filed: 1923-09-24
Abstract: 220,486. Hoyt, F. R. Sept. 24, 1923. Thermionic amplifiers and detectors.-The filament circuits of receiving valves are supplied with alternating current through a transformer 10, the secondary of which is shunted by one or more re sistances 15, 25 from which tappings are taken to terminals 23, 18, 27, 28 on the casing. One of the connections includes a choke coil 21 shunted by a condenser 24, and the corresponding terminal 23 is connected to the plate of the detector valve 19 through a H.T. battery 38. The shunt resistance 15 is of higher value than the resistance 25. The three valves shown in the Figure have their filaments connected in parallel to terminals 13 connected to opposite ends of the secondary coil 11. The grids of the H.F. valve 43 and the L.F. valve 30 are connected to the terminal 28, the latter connection including a negative biassing battery 31. The grid of the detector valve 19 is con. nected to the terminal 18. The plates of the H.F. valve and the L.F. valve are connected to the terminal 27 through a battery 35. The plate of the detector valve is connected to the terminal 23 so that the choke coil 21 is included in this circuit. Telephone currents in this circuit are bypassed through the condenser 24. The arrangement is designed to reduce the hum normally obtained when alternating filament supply is em. ployed.
Patent GB-1337017-A (GB)
Title: Electrophotographic element
IPC: G03G5/14
Filed: 1971-04-19
Abstract: 1337017 Electro-photographic element EASTMAN KODAK CO 19 April 1971 [18 Feb 1970] 23874/71 Addition to 1267537 Headings G2C and C17C4 An electro-photographic element as claimed in claim 1 of Specification 1267537 wherein x is an integer from 9 to 90.
Patent GB-1023756-A (GB)
Title: Process for forming polyester coatings on substrates
IPC: B05D3/04
Filed: 1964-06-09
Abstract: A process of forming a polyester resin coating on a substrate comprises applying to the substrate a primer containing a lacquer, a solvent therefor and an organic peroxide catalyst and, while the primer thus applied is still wet, applying thereto a polyester composition containing an unsaturated polyester and a drier to provide curing of the polyester, and subjecting the thus coated substrate to the action of oxygen to effect the curing of the polyester. The lacquer may be cellulose acetate butyrate or nitrocellulose, the peroxide may be methyl ethyl ketone peroxide, cyclohexanone peroxide, or cumene hydroperoxide, the polyester may be formed from maleic, fumaric, aconitic, itaconic, mesaconic, citraconic, xeronic or ethyl maleic acid or anhydride, and ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, or 1,3-butylene glycol and may also contain a saturated acid component such as phthalic, tetrachlorophthalic, chlorendic, adipic, isophthalic, succinic, sebacic, or azelaic acid or anhydride and a co-polymerizable monomer such as alpha-methyl styrene, divinyl benzene, diallyl phthalate, diallyl isophthalate, triallyl cyanurate, methyl acrylate or methyl methacrylate, the drier may be cobalt naphthenate or octoate or vanadium naphthenate with the optional addition of zinc naphthenate or zirconium naphthenate, and the final step may consist of air drying at room temperature or elevated temperature.ALSO:A process of forming a polyester resin coating on a substrate comprises applying to the substrate a primer containing a lacquer, a solvent therefor and an organic peroxide catalyst and, while the primer thus applied is still wet, applying thereto a polyester composition containing an unsaturated polyester and a drier to provide curing of the polyester, and subjecting the thus coated substrate to the action of oxygen to effect the curing of the polyester.  The lacquer may be cellulose acetate butyrate or nitrocellulose, the peroxide may be methyl ethyl ketone peroxide, cyclohexanone peroxide, or cumene hydroperoxide, the polyester may be formed from maleic, fumaric, aconitic, itaconc, mesaconic, citraconic, xeronic or ethyl maleic acid or anhydride, and ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, or 1, 3-butylene glycol, and may also contain a saturated acid component such as phthalic, tetrachlorophthalic, chlorendic, adipic, isophthalic, succinic, sebacic, or azelaic acid or anhydride and a copolymerizable monomer such as alphamethyl styrene, divinyl benzene, diallyl phthalate, diallyl isophthalate, triallyl cyanurate, methyl acrylate or methyl methacrylate, the drier may be cobalt naphthenate or octoate or vanadium naphthenate with the optional addition of zinc naphthenate or zirconium naphthenate, and the final step may consist of air drying at room temperature or elevated temperature.
Patent GB-224053-A (GB)
Title: Improvements in and relating to holders or receptacles for flowers and the like
IPC: A47G7/06
Filed: 1923-09-26
Abstract: 224,053. Hamilton, T., and Wrigglesworth, J. Sept. 26, 1923. Flower holders; flowervases.-A device for holding cut flowers in a vase consists of one or more tubular parts A, open at both ends tapering towards its mid portion and having projecting therefrom a transverse flange B or radial arms to rest on a vase or in a bayonet slot in a vase. The lower part of the device may be perforated, as shown. The holder may be provided with a number of branches C<1>, C<2>, C<3>, Fig. 4, at the upper end. The vase F, Fig. 6, in which the holder fits may be provided with internal projections H<1> below which projections B<1> on the holder engage, notches K being provided to serve as guides for the insertion of the holder. A stand G with pointed legs which may be pressed into the ground is provided for use in cemeteries &c.
Patent GB-444812-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs
IPC: C09B5/24
Filed: 1934-08-22
Abstract: Vat dyes of the pyridinobenzanthrone series are obtained by treating with alkaline condensing agents aminopyridinobenzanthrones, the pyridino-rings of which are attached to the benzene nucleus remote from the Bz - nucleus of the anthrone and containing free Bz - 1 - and/or 2-positions, in which one hydrogen of the amino group may be substituted by the radicle of an anthraquinone or anthrone compound having further condensed nuclei in at least the 1 : 9 position.  When the pyridinobenzanthrone is unsubstituted both in the Bz-1-and 2-positions, or is substituted by a radicle easily split off, dyes of the dipyridinodibenzanthrone series containing substituted amino-groups are obtained when the Bz-1 position is substituted by amino anthraquinone or an aminoanthrapyrimidine, products containing an acridine ring are obtained.  The products may be halogenated. According to examples, the compounds obtainable by condensing 7-brom-6-(N)5-pyridinobenzanthrone with (1) a -amino-anthraquinone, and (2) 5-amino-1 : 9-anthrapyrimidine, (3) a chlorpyridinobenzanthrone (obtained from 1-chlor-5-aminobenzanthrone with glycerine and sulphuric acid) with a -amino-anthraquinone, and by condensing Bz1 : 7-dibrom - 6(N) : 5 - pyridinobenzanthrone (obtained by brominating the 7-bromo-derivative), (4) with 2 mols. of a -aminoanthraquinone, and (5) 1 mol. of pyrazolanthrone, and by condensing Bz-1-brom-6(N) : 5-pyridinobenzanthrone, obtained by bromination, (6) with a -aminoanthraquinone, and by condensing Bz1-bromhydroxypyridinobenzanthrone, (obtained by condensing 2-amino-3-hydroxyanthraquinone with glycerine and sulphuric acid), (7) with a -aminoanthraquinone, are fused with alkali to give blue, grey and olive-grey dyes for vegetable fibres; the product of example 1 is treated with iodine and sulphuryl chloride, or bromine, to give further blue dyes.  Further aminoanthrone compounds which may be attached to the pyridinobenzanthrones include aminoanthrapyrimidines, -anthrapyrimidones, -anthraquinoneacridones, -pyranthrones and -anthanthrones, and these will react with brominated pyridinobenzanthrones to give the starting materials for the invention.  The customary alkaline condensing agents and solvents may be used for the condensation.
Patent GB-656068-A (GB)
Title: Improvements in apparatus for cleaning watch and like mechanisms
IPC: G04D3/08
Filed: 1948-09-16
Abstract: 656,068. Watch - cleaning apparatus. FLANNERY, F. E. Sept. 16,1948, No. 24357. [Class 139] The base A of a stand carries a plurality of cleaning, jars G and houses a motor K geared to a flexible shaft E which drives a basket-carrying shaft E<SP>1</SP> in a tubular sleeve D<SP>1</SP>. The sleeve D' is mounted on a radial arm D swinging on a pivot d<SP>1</SP> in an arcuate casing B<SP>1</SP> so that it can be positioned above any jar on the stand. The baskets F have a spring clip engagement with a. cap E<SP>4</SP> on the shaft E<SP>1</SP> and on removal can be placed in a recess b at the top of a hollow column B which carries the casing B<SP>1</SP>. An impeller I drives air through the column over a heating element H to dry the parts in the basket.
Patent GB-792984-A (GB)
Title: Improvements in or relating to heat transfer apparatus
IPC: F01D5/18
Filed: 1954-08-20
Abstract: 792,984. Perkins tubes; heat exchangers, surface condensers. COHEN, H. Aug. 10, 1955 [Aug. 20, 1954], No. 24370/54. Classes 64(2) and 64(3) [Also in Group XXVI] The volume of vaporizing and condensing liquid contained in the closed cavity of a Perkins tube or like heat-conducting body, which, like its cavity, extends into two heat-exchanging flow paths, is only sufficient to cover the surface of the hot end of the cavity with a thin liquid film, to fill the rest of the cavity with saturated vapour, and to allow dropwise condensation at the cool end of the cavity, and the critical temperature of the liquid is higher than the designed operating temperature of the tube or body. The liquid may be water or mercury. If water is used, its volume when it is all liquid is about 1 per cent of the volume of the cavity. A filling aperture 22 at one end of the tube 12, Fig. 4, may be closed by a ball 24 held in position by a grub screw 25 which is fixed by welding. In the steam condenser shown in Fig. 2, the Perkins tubes 12 extend through a rotating cylindrical wall 17 between a steam path and a coolant shaft 16. The tubes may also be used in heat transfer between two gases. The tubes may be stationary, the circulation inside them being assisted by gravity. Specification 592,448 is referred to.
Patent GB-332426-A (GB)
Title: Improvements in automatic control mechanism for liquid supply and/or drain valves
IPC: D06F33/04
Filed: 1929-08-09
Abstract: 332,426. Automatic Controls, Ltd., and Perrett, I. G. Aug. 9, 1929. Supplying and discharging liquids to and from washing-machines.-The supply or drain valves or both are controlled from a cam shaft or time element a, d which regulates the opening of the valves by means of relays e controlling the supply of pressure fluid to the valve-operating cylinders f, f<1>, the closing of the valves being controlled by a supplementary float-operated or equivalent device k, l, p by means of a secondary relay valve g, g<6>, which controls the passage of pressure fluid from the main relays e to the operating cylinders f, f<1>, and also the exhaust therefrom. The cam shaft a is driven by a pulley b through a clutch c and gearing d, and cams a' control the intervals between the opening of the relay valves in the block e. The relay valves control the admission of pressure fluid from the pipe e<1> through the pipes e<2> - - e<5> to the operating cylinders f, f<1>, a tee-piece h carrying a shuttle piston j and having a branch h<1>, admitting said pressure fluid to an operating cylinder i which disengages the clutch c thus stopping the cam shaft a. On the opening of the main valves attached to the cylinders f, f<1> fluid flows into a container w, e.g., the drum of a washing machine, and a float k in a branch pipe w<1> follows the liquid level in the container w at the same time rotating a wheel p through a pulley l until a cam p<1> operates the valve g at a predetermined level of liquid in the drum w, so as to shut off the pipes t<2>, e<3> and exhaust the cylinders, thus closing the supply valves. This' operation re-engages the clutch c and the cam shaft a rotates to operate the next set of relay valves. In a modification, Fig. 6, the float k is connected to one end of a lever k<3> which is pivotally connected to the lower end of a piston rod q<2> the piston q<1> of which is made to follow the movement of the float k by the admission of pressure fluid to the cylinder q by a balanced valve t, t<2> connected to the other end of the said lever k<3>. The upper end of the piston rod q<2> is extended to carry a rotatable disc r to which is connected a number of vertical rods r<1> bearing trip collars r' which in their proper turn operate the secondary relay valve g. The trip collars r<4> are adjustable to various heights and the rotatable disc r is turned periodically by a ratchet wheel s operated by a piston s<1> which is supplied with pressure fluid through a valve v on its operation by a collar v<1> on the extended connecting-rod r<3> at the end of the stroke of the piston q<1>. Specification 264,396 is referred to.
Patent GB-373876-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/26
Filed: 1931-08-31
Abstract: 373,876. Cigarette-making machines. UNIVERSELLE CIGARETTENMASCHINEN FABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany.-(Assignees of United Cigarette Machine Co., Akt.-Ges. ; 5, Junghansstrasse, Dresden, Germany.) Aug. 31, 1931, No. 24453. Convention date, Oct. 20, 1930. [Class 130.] The seam of a continuous cigarette rod is pressed together by a stream of compressed air or gas. The rod a enters a chamber b, c having over the seam a cavity d which is supplied with a compressed gaseous medium through an opening e. The medium may be heated to dry the seam.
Patent GB-517096-A (GB)
Title: Improvements in or relating to the disposition of radiators or like heat exchangers
IPC: F28D1/02
Filed: 1938-08-19
Abstract: 517,096. Radiators. BELAIEFF, J. F., and GALLAY, Ltd. Aug. 19, 1938, No. 24456. [Class 64 (iii)] A radiator c is disposed obliquely between air inlet and outlet ducts a, e, the aggregate area of the air passages through the radiator being equal to the cross-section of the ducts. The air is deflected on entering the radiator, and again on leaving it. The radiator may be of the tubular, gilled, or film type.
Patent GB-240303-A (GB)
Title: Improvements in direction indicators for motor or other vehicles
IPC: B60Q1/34
Filed: 1924-10-16
Abstract: 240,303. Attwood, C., and Harper, H. Oct. 16, 1924. llluminated stencil and transparency indicators. -In a direction indicator for vehicles of the type comprising a compartmented casing carrying signs capable of being illuminated by lamps which are carried by a partition, the partition is hinged in the casing so that easy access to the lamps may be gained and the lamp leads are taken into the casing by an improved method. A partition 6 is pivotally supported on the ends 7, 8 of the casing, or between supports carried by the casing. The bottom compartment is divided into compartments 11, 12 by a partition 9, which is slidably mounted in grooves in the partition 6 and a stud 34 on the bottom of the casing and supports the partition 6 in its normal horizontal position. The partition 6 carries lamps 13 which may be selectively operated to illuminate signs at the front and rear or rear only of the casing. The leads 23 from the lamps are connected to a terminal board 25 from which wires 26 are led through apertures in the end of the casing and a tubular arm 17 which supports the casing. The leads 26 at the end of the casing are protected by a removable plate 31 which also holds the signs in position in grooves at the top and bottom of the casing. The signs may be cut out of a plate which is positioned behind a red glass or be formed on the glass.. As shown, the casing is supported by the arm 17 which is secured to the dashboard by a clamp 21. Alternatively, the casing may be mounted on a mud-guard or supported on an arm which fits into a socket mounted on the vehicle. In a modification the partition 9 may be arranged above the partition 6. The Provisional Specification states that the upper compartment contains one centrallyarranged lamp only, and that the horizontal partition may be fixedly or slidably mounted on the casing.
Patent GB-1064888-A (GB)
Title: Unbalance locating and correcting systems
IPC: G01M1/30
Filed: 1965-06-10
Abstract: 1,064,888. Measuring rotor unbalance; phase angle and power factor measurement. GENERAL MOTORS CORPORATION. June 10, 1965 [June 19, 1964], No. 24545/65. Headings GIN and G1U. The angular position of the unbalance of a rotor 10 is measured electrically and indicated by a freely rotatable magnetic vane 50, the position of the vane being used to locate the rotor 10 after the test in the correct angular disposition for unbalance correction by a mechanism 12 which adds (or subtracts) material to the extent indicated by the magnitude of the unbalance signal, stored at 80. The rotor 10 is mounted on a spindle 16 coupled to a drive motor 18. The unbalance is sensed by a pick-up 28, giving a sinusoidal voltage output which is squared at 30 and fed to one winding 34 of a phase meter 32. The drive motor 18 is also coupled to a reference generator 26 giving a 2-phase output of the same frequency as the unbalance signal, which is fed to quadrature windings 38, 40 of phase meter 32. The vane 50 will therefore align itself with the direction of the resulting rotating magnetic field at the instant in each cycle that the unbalance pulse is produced, thus indicating on a scale 54 the phase position of the unbalance. Motor 18 is now de-energized and winding 34 of phase meter 32 is connected to a point 75 between the two quadrature rotor windings 62 of a resolver 58, whose stator winding 60 is fed with A. C. at standard power frequency, e. g. 60 cps. The connections between the free ends of windings 62 is such that at point 75 a voltage is developed whose amplitude is constant and whose phase is determined by the angular position of rotor windings 62. This voltage is fed to winding 34 of phase meter 32, to produce at the unearthed junction of windings 38, 40 a voltage whose amplitude is also constant and whose phase is determined by the angular position of the magnetic vane 50. This voltage is compared at 76 with the energizing A. C. in winding 60, and any difference is rectified and used to energize a motor 68 which drives the rotor windings 62 of resolver 58 and the test rotor 10 to line up with vane 50. The test rotor is now correctly positioned with respect to the unbalance correcting mechanism 12. The sequence of events measuring, indexing, correcting is effected by a switch 14 or automatically by a timer.
Patent GB-205084-A (GB)
Title: Improvements in internally-flued steam generators
IPC: F23M9/00
Filed: 1923-10-03
Abstract: 205,084. Sch÷nfeld, P. Oct. 3, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Crowns and roofs.-A firebrick arch b i s supported above the grate c of a boiler furnace b y supports d, e which are protected b y the arch from the flames. The lower edges of the arch are clear of the grate so that the grate area is not reduced.
Patent GB-376998-A (GB)
Title: Improvements in or relating to caravans
IPC: B60P3/34
Filed: 1931-09-02
Abstract: 376,998. Caravans; portable buildings. JAFFE, M.. 41, Parkfield Road, Liverpool. Sept. 2, 1931, No. 24610. [Class 108 (i).] Folding vehicles.-A caravan comprises a rigid main compartment 2 and one or more supplementary compartments the components of which are hinged to the main compartment. The compartment 2 comprises a floor 3, side walls 4, 5 fitted with windows 6, 7 and doors 8, 9, end walls 10, 11 with window 12 and door 13, and a roof 14. The or each supplementary side compartment comprises end walls 17, 18 hinged at 16, a floor 24 hinged at 23, a side wall 25 hinged to the floor 24 at 28 and a roof 30 hinged at 33, co-operating tongues &c. being provided for positioning &c. purposes. An end verandah may be provided comprising side walls 41 hinged at 42, a floor 43 and a roof 45 hinged at 46. Beds and other furniture may be provided housed in recesses in the main compartment. Supports 47 are provided and the structure may comprise a portable building, the chassis and wheels being dispensed with.
Patent GB-314368-A (GB)
Title: Improvements in feed-water heaters and the like
IPC: F22D1/42
Filed: 1928-08-27
Abstract: 314,368. Soc. L'Auxiliaire des Chemins de Fer et de l'Industrie. June 26, 1928, [Convention date]. Addition to 313,481. Feedwater, heating.- The plant claimed in the parent Specification is modified by forming the tube 2 containing the valve 5 for controlling the discharge of heated water from the heater 1 to the receptacle 7 as a U- shaped tube one branch of which opens into the bottom of the heater while the other branch 3<a> opens into the heater above the highest level of water therein. The valve &c. is disposed in one of the branches so that its upper face is directly subject to the pressure of steam while its lower face is subjected to the steam pressure increased by the pressure corresponding to the weight of any water which may be contained in the tube 2. Any condensate collecting in the tube 3a is discharged either automatically through an opening 63 when the valve is in its lower position or by hand through a suitable cock.