baber/WOPTO huggingface dataset:
Patent GB-1339609-A (GB)
Title: Methods and devices for electrically transmitting originals of images
IPC: H04N1/405
Filed: 1971-04-27
Abstract: 1339609 Facsimile apparatus ROBERT BOSCH ELEKTRONIK GmbH 27 April 1971 [28 April 1970] 11493/71 Heading H4F An image scanned at 2 produces a voltage proportional to the respective brightness values which is quantized at 3 into one of a plurality of amplitude ranges representing black, white and grey values and converted at 4 into a corresponding binary code for transmission. At the receiver, the binary signals are converted to corresponding amplitudes at 6 and trigger the appropriate one of the pulse generators 7 to 9 representing the respective grey values or a switching device 10 which provides a high D.C. voltage when the code corresponding to "black" is received and a low D.C. voltage when the received signal is "white". The pulse generators 7 to 9 produce pulse trains having different mark/space ratios in accordance with the corresponding grey level, which control a recorder 12.
Patent GB-445068-A (GB)
Title: Improvements relating to television apparatus
IPC: H04N5/76
Filed: 1935-04-13
Abstract: 445,068. Television. RUSSELL, E. W. C., Oakley House, Bedford. April 13, 1935, No. 11519. [Class 40 (iii)] Television signals are recorded as variable width or variable density tracks on an opaque support.' A stereotype plate may be produced to enable the record to be printed. The support may be metallized paper. For reproducing, relative movement is produced between the record and a light source and light reflected from the record is received on a light-sensitive cell. The record may be a strip, a flat sheet having a spiral track similar to a gramophone record, or a flat sheet having a plurality of columns so that on being rolled round a cylinder a continuous helical track is formed. Synchronizing signals may be recorded on the support to co-operate with the reproducing cell or a separate cell. They may be printed in a different colour and the cells have suitable filters.
Patent GB-981632-A (GB)
Title: Heating cable
Inventor: BRUCE HENRY HOPE
IPC: H05B3/56
Filed: 1961-03-29
Abstract: 981,632. Electric cables. G. N. HADEN & SONS Ltd., and ROSSER & RUSSELL Ltd. March 27, 1962 [March 29, 1961], No. 11526/61. Addition to 938,330. Heading H1A. [Also in Division H5] The heating cable of the parent Specification is provided with a core of electrically insulating elastic material which is introduced into the coil prior to the application by extrusion of the extensible covering. The core and covering may be of butyl rubber, and the core may be coated with a release agent, e.g. French chalk.
Patent GB-418371-A (GB)
Title: Improvements in stoppers for non-refillable bottles
IPC: B65D49/06
Filed: 1933-04-20
Abstract: 418,371. Non - refillable bottles. NARET, P., 15, Narrowgate Road, Chiswick, London. April 20, 1933, No. 11582. [Class 125 (i).] The closure for a non-refillable bottle comprises a hollow cylindrical member A having peripheral orifices D and baffle means positioned above the orifices, a sleeve member G adapted to be engaged with the lower part of the member A, a seating H in the upper part of the sleeve G for an obturator J, a float K above the obturator J, a guiding cage L enclosing the obturator and float and a weight member M above the cage ; the members J-M are movable relatively to the member A, which is retained in the bottle neck with its top Y below the rim z of the neck by a sealing ring N compressed between a boss O on the sleeve G and the bottom of the member A. The sleeve G has pins F which are engaged with bayonet recesses E in the member A after the members J-M have been inserted in the latter, and the baffle means are formed by rows of staggered lugs C ; angled liquid channels B are formed in the member A above the lugs C and are shallow to prevent removal of the closure while the lugs C prevent the insertion of an instrument for holding the obturator off its seat in an attempt to refill the bottle. The member M has a reduced portion m with a guiding pin m<1> located in an internal recess P in the solid top face of the member A. The obturator J is held on its seating by the member M when the bottle is upright or horizontal, and when the bottle is inverted for pouring, the weight M drops into the recess P, and the liquid lifts the obturator off its seat and passes through recesses R in the cage L and the orifices D and flows out through the lugs C and channels B ; if liquid is attempted to be introduced into the bottle while it is in a vertical condition, the liquid will cause the float K to press the obturator J against its seating.
Patent GB-837029-A (GB)
Title: Improvements relating to electric heating elements for soaking pits or furnaces
IPC: H05B3/60
Filed: 1957-04-09
Abstract: 837,029. Electric resistors; furnaces. STEIN & ATKINSON Ltd.' (Christiania Soigerverk). July 9, 1958 [April 9, 1957], No. 11583/57. Class 39(3) A heater for a soaking pit or furnace comprises a trough 5 of electrically conducting material resistant to high temperatures e.g. of silicon carbide, the bottom 9 of the trough over the major part of its length being smoothly curved to merge into the side walls 8 thereof The trough contains a carbonaceous resistance material such as coke breeze. The bottom of the trough is semi-circular in transverse cross-section and is formed integrally or adjacent its ends or at the ends of each section thereof, or at intervals along its length with flat-bottomed projections 10 by which the trough is supported on the flat tops of pillars 13 of refractory material spaced at intervals adjacent a side wall 6 of the pit. The trough may be corrugated longitudinally externally and may be in open ended sections placed end to end. The lowermost parts of the projections 10 are co-planar with the lowermost part of the troughs, and the side walls 11 of the projections are co-planar with the side walls 8 of the trough, which is filled with coke breeze 7. The flat side wall 8 adjacent the pit wall 6 is higher than the other side wall. The trough incorporates electrodes at each end of the pit for feeding in current. The pit is formed with a series of chambers 2 communicating longitudinally through archways 3.
Patent GB-513607-A (GB)
Title: Improvements in and relating to electric control systems for synchronous dynamo electric machines
IPC: H02P9/10
Filed: 1938-04-14
Abstract: 513,607. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd. April 14, 1938, No. 11590. Convention date, April 17, 1937, [Class 38 (iv)] The power limit at which a synchronous machine 1 connected to a line 7 drops out of synchronism is increased in dependence on load current by passing a current having a DC component through its armature windings. This is effected by grid controlled half wave rectifiers 17, 18, 19 connected between the phase windings and the neutral 5 of the armature windings. The valves are controlled by AC from a transformer 32 supplied from the line through a phase shifter 37, and with DC which varies with the load current. The current in one or more of the lines 7 is rectified at 28 and, after smoothing, is applied through an opposing battery 36 to the neutral point of the transformer secondary 34 and to the cathodes of the valves 17, 18, 19. In a modification the valves 17, 18, 19 are diodes and have each a saturable inductance in the anode circuit. The saturating coils of the inductances are supplied from the AC mains through a full wave grid controlled rectifier which is controlled in accordance with the load current. In a further modification the valves 17, 18, 19 are diodes and have an electromagnetic switch in their common cathode connection to the neutral point 5 the operating coil of the switch being supplied through a grid controlled valve controlled in accordance with the load current so as to close the switch when the current rises above a predetermined value. DC is thereby supplied to the armature to saturate it and reduce its synchronous reactance. A latch holds the switch closed and is released by a trip coil which is energized when the control valve ceases to conduct. In all these arrangements the voltage of the machine is kept constant by control of its excitation through a vibratory regulator of the usual type responsive to line voltage. In a further modification, Fig. 5, the field winding 6 is supplied from the AC mains through grid controlled rectifiers 70, 71, 72 and 77, 78, 79 of which valves 77, 78, 79 are 180 degrees out of phase with valves 70, 71, 72 through being supplied through a transforming 74. The valves are controlled in pairs, e.g., 70, 77 from the secondaries 101-106 of peaky wave saturable transformers 82, 83, 84 having primary windings energised from the three phase supply through a phase shifter 88.
Patent GB-852134-A (GB)
Title: Improvements relating to stretch yarns
IPC: D02G1/10
Filed: 1956-11-02
Abstract: 852,134. Finishing yarns. DEERING MILLIKEN RESEARCH CORPORATION. Nov. 2, 1956 [Nov. 2, 1955], No. 11657/60. Divided out of 852,133. Class 120(3). In the first stage of a process for crimping continuous mono- or multi-filament yarn e.g. of nylon, polyesters, polyacrylonitrile, cellulose triacetate or diacetate, wherein the yarn is heated, as by means of an electrically heated plate, and then passed in an angular path about a sharp edge of a blade which the yarn reaches before being allowed to cool appreciably, the blade is maintained at a temperature (at least 20‹F.) below that of the heating means so that is serves to cool the yarn e.g. by means of heat insulation between heating means and blade, or by circulation of a cooling fluid in contact with the blade. The yarn is subsequently reheated and relaxed.
Patent GB-1174385-A (GB)
Title: 0-Pyridyl-1,2,3,4-Tetrahydroisoquinoline Derivatives
IPC: A61K31/00
Filed: 1968-03-11
Abstract: 1,174,385. 1 - Pyridyl - 1,2,3,4 - tetrahydroisoquinolines. DR. KARL THOMAE G.m.b.H. 11 March, 1968 [10 March, 1967], No. 11747/68. Addition to 1,173,687. Heading C2C. The invention comprises novel compounds of the general Formula V and acid addition salts thereof, and a process for the preparation of 1 - pyridyl - 1,2,3,4 - tetrahydroisoquinolines corresponding to Formula V and including the 1-(2,3- and 4-pyridyl) derivatives (wherein R 1  and R 2 , which may be the same or different, each represents an alkyl group containing 1 to 3 carbon atoms; and R 3 , R 4  and R 5 , which may be the same or different, each represents a hydrogen atom or a methyl group) and acid addition salts thereof, which process comprises reducing the corresponding 1- pyridyl - 2 - hydroxy - 1,2,3,4 - tetrahydroisoquinoline compound (wherein R 1  to R 5  are as defined above), with hydrogen at above atmospheric pressure in the presence of a hydrogenation catalyst, in the presence of an inert solvent, and if desired converting the compound thereby obtained into an acid addition salt thereof. Compounds of the general Formula II are prepared by a process which comprises cyclisation of a pyridine aldoxime of the Formula III (wherein R 4  is as defined above) with a compound of the Formula IV (wherein R 1 , R 2 , R 3  and R 5  are as defined above; and one of the symbols X and Y represents a hydroxy group, an esterified hydroxy group or a halogen atom and Z and the remaining X or Y symbol each represents a hydrogen atom; or Y together with either X or Z represents a double bond, the remaining X or Z symbol representing a hydrogen atom) in the presence of a strong acid or a Lewis acid. Pharmaceutical compositions having antiphlogistic and antipyretic activity and an activating effect on the enzymes of the liver and containing compounds of the general Formula V defined above, are administered orally, rectally, parenterally or topically in association with a suitable pharmaceutical carrier or excipient.
Patent GB-1399653-A (GB)
Title: Synchronising systems
IPC: H04N3/36
Filed: 1972-03-14
Abstract: 1399653 Automatic speed control DECCA Ltd 12 March 1973 [14 March 1972] 11862/72 Heading G3R A system for synchronizing the slow speed drive of a film projector with scanning raster-field signals includes a synchro-resolver 7 driven by the film projector providing an output that is used to provide sampling pulses for a sawtooth reference waveform in a phase comparator to produce a control signal for the projector drive. In the embodiment shown the speed of shaft 1 is required to be about 1 revolution/sec and thus the incoming field pulses 2 are divided by two to obtain a pulse train having a repetition rate of 1 p/s. A multiplier 4 gives a reference 50 p/s train which drives the sawtooth reference waveform generator 10. Multiplier 5 produces a 49 p/s train which is converted at 6 into a polyphase waveform for resolver 7 whose output waveform frequency is the input frequency plus the frequency produced by the rotational speed of shaft 1, i.e. 1 Hz ideally. This waveform passes to circuit 8 to produce sampling pulses which are used in phase comparator 9 to sample the sawtooth waveform and produce a control signal 11.
Patent GB-260545-A (GB)
Title: Improvements in or relating to the starting and synchronising of rotary converters
IPC: H02K47/08
Filed: 1926-05-06
Abstract: 260,545. Alliaume, R. Oct. 28, 1925, [Convention date]. Systems depending on the use of two or more machines. - In a switching arrangement for changing the supply connections of a rotaryconverter from reduced to full voltage at the point of synchronism and for ensuring correct polarity at the direct current side, a reduced voltage switch 14 arranged to connect the converter to part of the main transformer 18 is closed at starting by a coil 20, and is afterwards opened at the correct point as the result of the closure of a delayed-action synchronizing relay 2 controlling two polarized direct-current voltage relays 3, 4. If the polarity is correct only the relay 3 responds, energizing the coil of a twoway switch 5 which cuts out the coil 20, and switching-in a coil 21 which closes the full voltage connection switch 15. Electrical interlock contacts 9 - - 13 on the two switches 14, 15 ensure that the first is completely opened before the second is closed and that the coil 20 cannot be re-energized during normal running. A voltage relav 8 acts independently of the interlock contacts to cut out the coil 20. If the polarity is wrong only the relay 4 responds, closing the energizing coil of a reversing-switch 6 which reverses the exciting current and maintains the reversal until the direct current voltage has fallen to zero, the subsequent operations then taking place as before. The invention further comprises a polarized relay responsive during running to reversed voltage of a given value and arranged to open the main circuit breaker in the alternating current supply and restore it automatically after a given time under reduced voltage conditions.
Patent GB-464721-A (GB)
Title: Improvements in or relating to envelopes or the like for articles of commerce
IPC: B65D75/40
Filed: 1936-04-27
Abstract: 464,721. Package envelopes. NEWYORK HAMBURGER GUMMI-WAAREN CIE. April 27, 1936, Nos. 11890 and 11891. Convention dates, April 30, 1935 and Sept. 13, 1935. [Class 146 (ii)] [Also in Group XVII] In a collective package for combs and other articles in which an envelope is formed wholly or in part of transparent material and subdivided into individual pockets arranged in strip form by securing together parts of the front and rear sheets of the envelope, there is attached to at least one edge of the envelope a flat body, such as a cardboard sheet, which serves to receive advertising matter and as a suspension means for the package. As shown in Fig. 1, a transparent envelope b is subdivided by a single seam d of cotton, running in zigzag form, into adjacently located pockets with open ends alternating. Cardboard or like sheets a and e are provided at the upper and lower ends of the envelope to serve as suspension means or to protect the package when folded up in zigzag form. In a modification, the envelope is subdivided by a strip gummed on both surfaces and placed between the sheets thereof, and tearing-threads or perforations may be provided to assist in detaching the pockets from the envelope. In the form shown in Fig. 6, the pockets are provided by double seams k of cotton or the like, and in the space between two seams there is located a double tearing-thread l fixed at m and n, whereby the two sheets of the envelope between the seams can be cut by first drawing the thread downwardly, and then upwardly. If desired, the back of the envelope could be of opaque material.
Patent GB-183572-A (GB)
Title: Improvements in or relating to glass and other furnaces
IPC: C03B5/42
Filed: 1921-04-25
Abstract: 183,572. Stafford, C. S. April 25, 1921. Walls; cooling.-In order to protect the wall of a furnace from injury by water or steam, which is applied directly to the outer face of the wall to cool it, this outer face is sprayed or otherwise treated, so as to produce a continuous layer, with molten metal, vitreous enamel, or glazing-composition. As shown, the external face of the wall of a glass-melting furnace is sprayed with the waterproofing material A and provided with a drip-plate and gutter, placed in any one of the positions shown at B, C, D, D<1>, or D<2>, D<3>, to carry away the cooling-water. Before applying the waterproofing layer, the outer face of the wall may be rendered less porous by covering it with a thin coat of a non-shrinking cement having the same coefficient of expansion as the material of the wall. According to the Provisional Specification, the wall may be provided with metallic heat-radiating elements which are placed in position before the blocks are sprayed.
Patent GB-353056-A (GB)
Title: Improvements in electric synchronising systems
IPC: H04N5/12
Filed: 1930-04-15
Abstract: 353,056. Synchronous movements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and MADDOCK, A. J., 34, Regent Place, Rugby. April 15, 1930, No. 11930. [Class 40 (iii).] Two rotating bodies are maintained in synchronism by means of a variable condenser having its plates attached to the respective bodies, changes in capacity of the condenser affecting the supply of power to the controlled body. As shown, a phonic wheel W is rotated by, and in synchronism with, received signals and controls the supply of power to motive means M for the controlled body. The plates P1, P2 of a variable condenser are rotated respectively by the phonic wheel and the motor M, and the variation in capacity of the condenser varies the phase of an alternating voltage impressed on the grid G of a thermionic valve V of the type described in Specification 309,442, [Class 39 (i), Electric lamps, Arc &c.], with respect to the phase of an alternating voltage which is impressed on the anode A of the valve. The resulting change in current passing through the valve alters the speed of the motor to bring the controlled body into synchronism with the phonic wheel. The field of the phonic wheel and the stator of the motor can be rotated to correct large differences in phase.
Patent GB-184232-A (GB)
Title: Improvements in reducing gear
IPC: F16H1/20
Filed: 1921-04-27
Abstract: 184,232. Hatcher, E. C., and Rooke, T. April 27, 1921. Transmission gear of invariable ratio; freewheel gearing.-A reducing-gear, for use in driving railway, tramway, or road vehicles, the prime mover being an electromotor or a steam turbine, &c., comprises perpendicular or parallel shafts geared together and carried in a casing, worm or spiral gearing connecting the said shafts to the driving and driven shafts, respectively. The gear is shown as applied for driving a winding- drum 16, an electromotor 14 being carried in a suspended frame 15, 20 and driving a shaft 3 which drives, through worm or spiral gearing 10, 11, a shaft 6 carried in a casing 5 bolted to the frame 15, a second transverse shaft 7 being geared to the shaft 6 by spiral or worm gearing 8, 9 and to the driven shaft 4 by worm or spiral gearing 12, 13. The pitch and direction of the gearing may be so arranged that the shafts 3, 4 rotate in the same or opposite directions, that the shaft 4 is locked when the motor is not driv. ing. or that the shaft 3 may be turned by the load on the shaft 4. The shafts 6, 7 may be parallel and may be geared together by spur gearing. When applied to vehicles, a track wheel replaces the drum 16, and the shaft 3 extends to both sides of the vehicle to drive duplicate gearing. or the shaft 4 is extended to pass through the hollow shaft 3 and carries both wheels, and one wheel may be connected to the shaft by differential gearing. A ratchet clutch may be arranged between the wheel 13 and the shaft 4 to allow overrunning of the wheels.
Patent GB-271447-A (GB)
Title: Improvements in or relating to the transmission of telegraphic signals with continuous-wave transmitters
IPC: H04L27/04
Filed: 1927-05-05
Abstract: 271,447. Naamlooze Vennootschap Nederlandsche Seintoestellenfabriek. May 22, 1926, [Convention date]. Thermionic generators and keying systems.- A thermionic transmitter has a contact Y adapted to open a high-frequency circuit and another contact Y to make the grid negative at the same moment by bringing into the plate circuit a resistance D having its end connected to a grid resistance C in order that the energy extracted from the high-tension source F remains constant whether the key is depressed or not. The resistance D is variable to permit regulation of the energy passing through the valve in the non- oscillatory state and is shunted by a condenser E to avoid low-frequency oscillation. The value of the resistance is so chosen that an automatic regulation ensues when the energy supplied to the valve is varied. For example if the energy supplied increases, the plate current also increases thus causing the grid potential to decrease.
Patent GB-742469-A (GB)
Title: Improvements relating to ceramic pipes and tubes, and other hollow ceramic articles
Inventor: BIRD PHILIP LORRAINE
IPC: C04B33/13
Filed: 1952-05-14
Abstract: A slurry for moulding thin-walled ceramic tubes and pipes and other hollow articles comprises a finely divided ceramic raw material and a hydrolysable organic silicate in an aqueous medium. In an example 500 cc. of an ethyl silicate containing the equivalent of 40 to 42 per cent by weight of silica, and prepared by the reaction of silicon tetrachloride with ethyl alcohol containing 5 per cent water, was shaken with 100 cc. of 1 per cent aqueous HCl until the temperature of the mixture ceased to rise. 1400 cc. of distilled water was then added and the soda cooled to room temperature.  Fused alumina (100 g.) of fineness passing a 200-mesh B.S. sieve and light magnesia powder of fineness passing a 300-mesh B.S. sieve were mixed together and the ethyl silicate medium (22 cc.) stirred in to form the final mixture.  In another example, zircon sand was used in place of alumina.  Specifications 674,137, [Group IV (b)], and 722,425 are referred to.ALSO:In a process for the production of thin-walled ceramic pipes, tubes, and other hollow articles, a slurry of a finely divided ceramic raw material (e.g. alumina, sillimanite, zircon) and a hydrolyzable organic silicate in aqueous medium is shaped in a cored mould; the shaped product is withdrawn from the mould when it has formed an elastic gel, but before it has set rigid, and is then dried and fired.  In an example, an ethyl silicate treated with hydrochloric acid and diluted with distilled water, was stirred into a fine mixture comprising fused alumina and light magnesia powder and the slurry obtained was poured into a greased mould consisting of an inner core of plaster of paris and an outer glass tube, the cavity having an outer diameter of 2 inches, length 10 inches and thickness 1/8 inch.  After gelation, the core was withdrawn and the jelly casting pushed or pressed from the outer mould wall.  The tube obtained was hardened at room temperature for 12 hours, dried in an oven at 80 DEG  C. for 4 hours, heated 1 hour to 1500 DEG  C. and held at this temperature for 1 hour before being allowed to cool for 18 hours.  Specifications 674,137 and 722,425, [Group IV(a)], are referred to.