baber/WOPTO huggingface dataset:
Patent GB-1134329-A (GB)
Title: Substituted pyrazolone compounds
Inventor: MAGGIULLI CATALDO ALDINO
IPC: G03C7/384
Filed: 1966-02-24
Abstract: 1,134,329. 3-Arylamino-3-alkoxy-acrylates; 3 - arylamino - 2 - pyrazoline - 5 - one. EASTMAN KODAK CO. 24 Feb., 1966 [24 Feb., 1965], No. 8100/66. Heading C2C. [Also in Division C4] 3-Arylamino-acrylates of the formula wherein R represents an optionally substituted aryl group or a heterocyclic aryl group and R<SP>2</SP> and R<SP>3</SP> are alkyl groups, are prepared by reacting an acrylate of the formula wherein X is an acid anion and n is 1 or 0, with an arylamine of the formula RNH 2  or RNH 2 .HX. The 3-arylamino-acrylates may be reacted with a hydrazine R<SP>1</SP>NH.NH 2 , if necessary in the presence of a cyclization agent to yield a pyrazolinone of the formula where R 1  is hydrogen or an optionally substituted alkyl, aryl or heterocyclic group. The reaction of the arylamine and the acrylate is preferably effected at elevated temperatures in the presence of a solvent. Suitable cyclisation agents for the subsequent reaction with the hydrazine are alkali metal carbonates, hydroxides and alkoxide, alkaline earth metal hydroxides or alkoxides or organic acids. Examples relate to the preparation of a number of compounds in some of which the aryl group R is substituted, e.g. by chloro, cyano, carboxy, nitro, acetamido, sulpho, sulphamoyl and phenylazo (see Division C4) groups.
Patent GB-379271-A (GB)
Title: Improvements in electric gaseous discharge apparatus
IPC: H01J61/30
Filed: 1931-03-17
Abstract: 379,271. Discharge lamps. CLAUDELUMI’RE, SOC. ANON. POUR LES APPLICATIONS DES GAZRARES A LA LUMI’RE, PROC•D•S G. CLAUDE, 3, Avenue de l'OpÚra, Paris. March 17, 1931, No. 8114. Convention date, Nov. 5, 1930. [Class 39 (i).] In an arc discharge lamp containing at least one rare gas, migration of cathodic material is prevented by the combination of (I) a cathode chamber 4, Fig. 3, with condensation zones 6 which remain at a temperature sufficiently below that of the gaseous charge and the envelope enclosing the luminous column 2 and anode, that particles volatilized from the cathode 3<1> are condensed, the zones being hot enough for the condensed material to fall in a molten state on the cathode, (2) a zone having an operating temperature higher than that of the luminous column and formed by providing (a) a constriction 12, (b) a lagging sleeve or (c) a heating coil such as the usual steadying resistance around the junction between the chamber 4 and the luminous tube 2, and (3) a baffle 17, Fig. 6, mounted above the cathode to deflect back to the cathode, particles projected towards the tube 2. The cathode consists of alkaline-earth metal or alloy, or a precious metal. An elbow bend may replace the constriction.
Patent GB-1467511-A (GB)
Title: Adhesive reservoir and applicator assembly
IPC: B42C11/02
Filed: 1974-02-22
Abstract: 1467511 Coating apparatus ARMARCO MARKETING CO INC 22 Feb 1974 [22 Feb 1973] 8125/74 Heading B2L [Also in Division B6] An adhesive reservoir and applicator assembly 90 (Fig. 10) for applying adhesive to the spine of a group of book pages (see Div. B6) comprises an elongate heated reservoir with a screen 150 extending from a side wall 158 to a longitudinal baffle 155 and a cylindrical applicator roller 92 secured to an axle 160 rotation of which draws liquid adhesive through the screen 150 to remove bubbles and applies some adhesive to the article being coated and circulates other adhesive through the reservoir in the direction of the arrows 153, 154. The assembly further includes an adjustable doctor blade 192 and an applied coating thickness control scraper blade 190. (Fig. 11c), a thermostat 162 and a ramp 157 down which the axle propels adhesive. Heat transfer guide baffle 99 and portion (191) (Fig. 11a, not shown) of the scraper blade 190 are provided to help maintain the adhesive liquid. The applicator roller may be patterned or have circumferential grooves and lands.
Patent GB-838799-A (GB)
Title: Improvements in or relating to hydrogen filled thermionic valves
Inventor: COOK KENNETH GEORGE
IPC: H01J17/20
Filed: 1958-03-13
Abstract: 838,799. Thermionic valves. M-O. VALVE CO. Ltd. Feb. 3, 1959 [March 13, 1958], No. 8165/58. Class 39(1). In a hydrogen filled thermionic valve at least 10% of the total pressure is due to the presence of deuter ium. In such a valve, the volt drop occurring in operatior between the anode and cathode, when an electric discharge is passing, is lower than if the filling were natural hydrogen. In the medium-power hydrogen thyratron shown the filling consists substantially entirely of deuterium at a pressure of 350 microns of mercury. The indirectlyheated cathode 2 is surrounded by a molybdenum heat shield 3 to the end of which is secured a cathode baffle 14. A nickel screening electrode 4 surrounds the heat shield and is supported on rods 16 extending from a clip 17 secured to the pinch 9. The molybdenum anode 6 is surrounded by a control electrode 5, in the form of a cylindrical box, supported from the glass sheath 18 surrounding the anode lead 7. The control grid comprises a number of rods 22 welded to an apertured disc 19, a disc 25 and a cylindrical mesh portion 28 which is extended and welded to the screening electrode 4. A further baffle plate 23 is secured to the lower end of the grid box 5. Suitable dimensions for the electrode structure are given.
Patent GB-550420-A (GB)
Title: Improvements in method of making bearings
IPC: F16C33/66
Filed: 1941-07-01
Abstract: 550,420 Coating metals. MACHLETT LABORATORIES, Inc. July 1, 1941, No. 8279. Convention date, July 31, 1940. [Class 82 (ii)] In the manufacture of bearings including races and elements rolling between the races, the rolling elements are mounted within an envelope in contact with a solid body of a soft metallic substance capable of acting as a lubricant for such elements, e.g. silver, the elements and the body heated, whilst the envelope is simultaneously evacuated, to remove occluded gases from them, the elements then moved in contact with the body until they take a coating of the metallic substance and the coated elements removed from the envelope for insertion between races, e.g. in the evacuated envelope of an X-ray apparatus. The balls 2, to be coated are mounted between outer races 1 and a split race 2, the latter being separated by shims 7 of silver, on a shank 4 sealed through the wall of a glass envelope 5 by a seal 6. The races 1 are separated by spacers 8 and the inner races bear against a shoulder 9, both races being held in place by a screw 10. A metal sleeve 11 is then telescoped over the shank 4 until a shoulder 12 bears against the end outer race, a spacer ring 13 holding the outer race being held in position by a screw 14. A stator coil is slipped over the envelope 5 the interior of which is connected to a vacuum pump. With the latter operating, the entire assembly is heated by high frequency induction to a high temperature, e.g. just under 1000‹F., and the temperature maintained and the pumping continued until the gas evolution has ceased. The envelope is then sealed off and the sleeve 11 rotated by a stator, the balls 3 running in contact with the shims 7 and thus receiving a thin coating of silver. When the coating has been completed, the rotor arm bearings are removed and the balls and races from which the shims have been removed may be assembled to form bearings for use in vacuum tubes or X-ray apparatus. Specification 545,693 is referred to.
Patent GB-1020669-A (GB)
Title: Venting device for use with a liquid container
Inventor: RIDEL RICHARD WILLIAM
IPC: F16K24/04
Filed: 1964-02-28
Abstract: 1,020,669. Venting-apparatus. C.A.V. Ltd. Jan. 20, 1965 [Feb. 28, 1964], No. 8338/64. Heading B8X. [Also in Division F1] A venting-device for a fuel reservoir 7 comprises an annular diaphragm 15 forming a flap valve with a flange at the lower end of a tube 13. The outer margin of the diaphragm is secured to a plate 14 fixed to the tube 13. The diaphragm admits air to the reservoir 7 when fuel is drawn off via a pipe 9. The device forms part of a starting-device for an internal combustion engine (see ,Division Fl).
Patent GB-990256-A (GB)
Title: Improvements in or relating to security documents and monetary tokens
Inventor: KLAZKOWSKI STEFAN
IPC: G07D7/14
Filed: 1962-03-26
Abstract: In the printing of security documents such as banknotes the validity of which is tested by a characteristic radioactive content, the ink contains the radioactive material.  The composition of an ink used to print symbols on banknotes is given as follows with the exclusion of blanc fixe, kaolin or silica; carbon black 16%, bronze blue 7%, wax dispersion 10%, resin varnish 62%, cobalt linoleate driers 1%, cobalt paste driers 4%, and barium carbonate containing carbon 14 0.098%.ALSO:A document, such as a paper banknote, the validity of which may be tested by the presence of a characteristic radio-active material on or in the document, may have the radio-active material applied to it on one face in the form of a resinous coating.  The radio-active isotope of carbon or tritium may be present in an organic component of such a coating.ALSO:In the manufacture of security documents such as banknotes containing a radioactive content by means of which the validity of the documents may be tested, the radio-active material may be distributed throughout the pulp from which the document is made or may be introduced into the paper in the form of a thread, or in individual fibres concentrated in a given area such as in a band or design.  Radio-active materials referred to are the isotopes of carbon and tritium.  The radioactive material may be applied to the documents by means of a carbon paper containing the radioactive material.
Patent GB-416678-A (GB)
Title: Improvements in metal-faced composite sheets
IPC: E04C2/26
Filed: 1933-03-21
Abstract: 416,678. Compound sheet material. MACKENZIE, K. D., c/o Braby & Co., Ltd., F., Petershill Road, and WAITE, A. J., 202, Bedlay Street, both in Springburn, Glasgow. March 21, 1933, No. 8467. [Class 140.] The metal face plates 1, 2 project beyond the core 3 of plywood or other suitable material. A metal strip 5 is placed against the edge of the core and the groove thus formed is filled with soldering metal 6 which is then smoothed off flush with the edges of the plates 1, 2.
Patent GB-1140029-A (GB)
Title: Pigmentary metal oxide production
IPC: C09C1/00
Filed: 1966-02-28
Abstract: 1,140,029. Titanium dioxide. PPG INDUSTRIES Inc. 28 Feb., 1966 [18 March, 1965], No. 8601/66. Heading C1A. The tinting strength of non-pigmentary TiO 2  produced by vapour phase oxidation of Ti halide is increased by screening a slurry of the TiO 2  having a pH of 6-12 to remove particles greater than 90 Á in diameter, milling the slurry until the particles are all less than 10Á in diameter, and hydrocycloning the slurry. The slurry may have a solids content of 30-65% by wt. and a viscosity of 100-2500cp., and may contain 0À05-0À5% by wt. based on the wt. of oxide, of a dispersant, e.g. Na, K, Li, or NH 4  hypophosphate, hypophosphite, orthophos - phates, metaphosphates, pyrophosphate, or tripolyphosphate, NaNH 4  phosphate, ethylene diamine, ethylamine, diethanolamine, diethylene triamine, pyridine, triethylamine, or benzyl trimethyl ammonium hydroxide. The pH of the slurry may be adjusted by adding NaOH, KOH, LiOH, NH 4 OH, Ca(OH) 2 , BaCO 3 , K 2 CO 3 , Na 2 CO 3 , KHCO 3 ,NaHCO 3 , or NaOH + Na 2 CO 3 . The slurry may be ball-milled for 5 mins-36 hrs, and then diluted to a solids content of 15-25% by wt and hydroclassified to give a fine fraction having a particle size of less than 0À4Á. The non-pigmentary TiO 2  has a tinting strength of less than 1200 and is the material scraped from the walls of the oxidation reactor or removed from the bed particles in a fluidized bed process by milling. It may contain 0À1-10% by wt of another oxide, preferably Al 2 O 3  (an exhaustive list of other oxides is given).
Patent GB-642933-A (GB)
Title: Improvements in or relating to liquid level indicators
Inventor: SPROULE ROBERT ANDREW
IPC: G01F23/24
Filed: 1948-03-24
Abstract: 642,933. Automatic control systems for liquid levels. SANDERS (ELECTRONICS), Ltd., W. H. March 24, 1948, No. 8690. [Class 38 (iv)] [Also in Groups XVIII and XXXVI] In a control or indicating system for liquid levels of the type wherein insulated control &c. electrodes are inserted in a tank, inaccuracies in operation due to the presence of leakage currents across the insulation of the electrodes is nullified by the provision of a second leakage path having the same electrical characteristics as the insulation of the electrodes. As shown in Fig. 3, this second path is provided by the insulation of a " guard " electrode 15. The level of liquid in a tank 31 is maintained between two levels determined by electrodes 16, 17 by a pump 32 driven by a motor 33 which is controlled by a relay 55 in the output circuit of a valve 53. The grid potential of the valve is controlled by a Wheatstone bridge 64 ... 67, the arms 66, 67 of which are controlled by the " guard " electrode 15 and the control electrodes 16, 17 respectively. The insulation resistances of the " guard " electrode and control electrodes 16, 17 with respect to the tank are arranged to be equal (as represented by dotted resistances 76, 75) so that the effects of leakage across the control electrode are balanced out in the bridge. When the level of the liquid reaches electrode 16, the balance of the bridge is upset to deenergize relay 55 and release contacts 46, 47, 73, 74. The pump 32 is thereby switched on and the bridge circuit transferred to electrode 17 to maintain the pump in operation until the level falls below electrode 17 when the bridge is rebalanced and relay 55 de-energized to stop the pump. Instead of providing two control electrodes, a single-level electrode may be used. Moreover as an alternative to automatic control, the system may be employed to operate one or more level indicators.
Patent GB-1505622-A (GB)
Title: Tunnel furnaces
IPC: F26B21/02
Filed: 1976-03-04
Abstract: 1505622 Tunnel furnaces BERTIN & CIE 4 March 1976 [4 March 1975] 8713/76 Heading F4B A tunnel furnace incorporating an air supported conveyer comprises a cooling jacket formed by spaced walls 5, 5a through which cooling gas is induced, e.g. by a fan 7 to flow to a burner 8 which produces hot gases supplied to at least one permeable hearth 1 through which the gases flow to provide a gas cushion for maintaining articles 6 to be treated spaced therefrom. The or each hearth comprises two spaced sides bounding an intersticial space therebetween for receiving cooling gas from the jacket and through which passageways for the hot gases extend. The furnace is formed from a series of modular elements which may operate at different temperatures and two superposed hearths may be provided. The hot gases are partially recycled from above the hearth 1 through a feedback conduit 12a to the burner outlet.
Patent GB-385576-A (GB)
Title: Improvements in or relating to talking films
IPC: G03B27/46
Filed: 1931-03-21
Abstract: 385,576. Optical sound records. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. March 21, 1931, No. 8750. Convention date, April 12, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 .(ii).] . The parts corresponding to periods' of silence on sound films, which may be combined with picture films, are made opaque to the 'reproducing light beam, thus avoiding. the produc. tion of noises caused by imperfections in these parts of the film. This may be effected by coating or painting the parts on a positive film by hand or in a machine with a brush, roll, pen, &c., or by treating the negative photographically, chemically, or mechanically so that these parts are rendered transparent and produce opaque parts on the positive by printing. In another method, the light source is suppressed at these parts during the making of the negative.
Patent GB-571945-A (GB)
Title: Improvements relating to stereoscopic cinematography
IPC: H04N5/84
Filed: 1943-06-01
Abstract: 571,945. Stereoscopic kinematography. BRITISH THOMSON-HOUSTON CO., Ltd., and CASTELLAIN, A. P. June 1, 1943, No. 8765. Drawings to Specification. - [Classes 97 (i) and 98 (ii)] Means for producing stereoscopic kinematograph films comprise a photo-electric image converter, such as an ionoscope, on to the screen of which right- and left-eye images of the scene are projected, means for scanning corresponding lines alternately of each image, a cathoderay tube having its beam controlled in intensity by the amplified output of the image converter and scanned in synchronism with the scanning of the images on the screen of the converter so as to produce on the cathode-ray' tube screen a line of each image alternately, together with a photographic film which is moved uniformly in front of the cathode-ray tube screen, whereby either separate right- and left-eye images or interlaced right- and left-eye images are imprinted line by line on the film. The two images may be arranged one above'the other on the screen of the image converter and scanned in vertical lines extending over their combined height, the corresponding scans of the cathode-ray beam being across the width of the film, so that the images of a pair appear side by side and with their vertical dimensions transversely of the film. Alternatively, the scan of the cathode-ray beam may be such that a composite interlaced image is formed, the projected image of which is viewed through a grid, and consisting of lines of each of the images arranged alternately, the vertical dimensions of the images again extending transversely of the film. The proportions of the images on the film may be changed by control of the beam and restored during projection from the film by a system such as that described in Specification 571,944. Colour records may be made by a disc comprising colour segments arranged to intercept the light forming the images on the screen of the photo-electric converter. Background or other scenes may be superimposed on the scene depicted by additional modulation of the recording cathoderay tube, obtained from a second image converter.
Patent GB-876264-A (GB)
Title: Process for the pyrolysis of hydrocarbons
Inventor: BRACONIER FREDERIC FRANCOIS AL
IPC: C07C11/02
Filed: 1959-03-13
Abstract: Acetylene and olefines are obtained by subjecting methane to partial combustion for 0.001-0.005 second, injecting into the resultant acetylene-containing gas a vaporised and preheated aliphatic hydrocarbon having 3-7 carbon atoms per molecule through a plurality of jets having axes at an angle of 10-30 degrees with the radii of the pyrolysis chamber and perpendicular to the gas flow, and quenching the pyrolysis gases by transverse injection of a cold fluid.  Oxygen and methane or natural gas are preheated to 650-700 DEG C. and mixed within 10 milliseconds.  The hydrocarbon to be pyrolysed may be a mixture such as a low aromatic naphtha boiling in the range 40-150 DEG C. and may be mixed with steam and preheated to 620 DEG C.  The pyrolysis gases may be quenched with water. Specifications 876,261 and 876,263 are referred to.
Patent GB-127395-A (GB)
Title: New or Improved Method of Strengthening or Re-inforcing Metal Articles or Constructions subject to Centrifugal or Radial Stresses, such as Wheels, Flywheels, Nuts and the like.
Inventor: HALL SAMUEL
IPC: F16C15/00
Filed: 1918-12-24
Abstract: 127,395. Hall, S. Dec. 24, 1918. Nuts.-Metal articles subject to centrifugal or radial stresses, such as wheels, fly-wheels, nuts, &c., are reinforced by rings of stranded steel wire embedded in the articles by casting or otherwise. Fig. 1 shows a fly-wheel containing rings a<3>, a<4> of stranded wire. The spokes may be reinforced by pieces a<2> of stranded wire.
Patent GB-911179-A (GB)
Title: Hypnotic and tranquilizing compositions comprising 4, 6-dimethyl-3-pyridazone
IPC: A61K31/00
Filed: 1961-03-10
Abstract: Central nervous system depressant compositions in unit dosage form for oral or parenteral administration comprise from about 100 to about 1000 mg. per dosage unit of 4,6-dimethyl-3-pyridazone. Specified pharmaceutical forms are tablets, capsules, powders, suspensions and aqueous parenteral solutions.  It is stated that administration of the above compound potentiates the action of co-administered barbiturates e.g. sodium prentobarbital.
Patent GB-1125407-A (GB)
Title: Improved recycling electric switch and circuit therefor
IPC: H01H43/30
Filed: 1966-03-01
Abstract: 1,125,407. Thermal switches. GENERAL ANILINE & FILM CORP. 1 March, 1966 [5 March, 1965], No. 8854/66. Heading H1N. [Also in Division H2] An automatic recycling device comprises a first pair of normally open contacts 20, 24, contact 24 being fixed and contact 20 being mounted on a bi-metallic strip 16 provided with a heater winding 18, and a second pair of normally closed contacts 26, 28, contact 28 being fixed and contact 26 being mounted on the strip, the arrangement being such that on heating of strip 16, contacts 24, 20 close and then contacts 26, 28 open, and on cooling contacts 20, 24 open and then contacts 26, 28 close. When not heated, one end (16b) of strip 16 engages a helical surface 47 of a cam 44; and contacts 26, 28 are associated with a bistable or over-centre member (30) which snaps contacts 28, 26 open (Fig. 1a) after contacts 20, 24 have closed, and snaps contacts 26, 28 closed (Fig. 1) after contacts 20, 24 have opened. The device is switched " on " by rotating cam 44 to close contacts 38, 36, contact 36 being mounted on a spring arm 35 engaging in a recess (45) in cam 44 in the " off " position (Fig. 3). This completes a circuit including the heater winding 18 which heats strip 16 to close contacts 20, 24. This completes a circuit for an induction type motor 62 through the closed contacts 26, 28. On energization, motor 62, drives an arm 64 clockwise, e.g. to reciprocate a slide carrier of a projector. As soon as arm 64 clears a spring 66, the latter snaps contacts 67, 69 closed to complete a circuit for the motor independently of contacts 20, 24, and 26, 28 and 38, 36. Contacts 69, 67 remain closed for one cycle of the motor 62. Contacts 20, 24 are opened before the motor cycle is completed but after contacts 67, 69 closed, and contacts 67, 69 are opened before contacts 20, 24 close for the next switch cycle. Opening of contacts 26, 28 opens a circuit including heater winding 18 and cooling commences. The cycle of operation of the contacts 20, 24 can be varied by changing their spacing, the latter being performed by rotating cam 44 so end (16b) of strip follows helical surface 47.
Patent GB-810176-A (GB)
Title: Improvements in or relating to golf balls
IPC: A63B37/00
Filed: 1957-03-18
Abstract: 810,176. Golf-balls. MUCCINO, L. F. March 18, 1957, No. 8870/57. Class 132(2) A golf-ball core envelope 1 is filled with discrete metallic particles, e.g. lead pellets 3, in contact with and supporting each other. The interstices between the particles may be partly filled with liquid.
Patent GB-879869-A (GB)
Title: Improvements in or relating to apparatus for controlling actuating members
Inventor: MARSHALL JOHN EDWARD
IPC: G05B19/12
Filed: 1959-03-14
Abstract: 879,869. Programmed control systems. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. Feb. 1, 1960 [March 14, 1959], No. 8913/59. Class 38 (6). The pattern of a warp-knitting machine is controlled by a loop of perforated opaque tape which is read photo-electrically to control the movement of the guide bars. The tape, Fig. 1 (not shown), is driven in synchronism with the knitting machine between a lamp and a phototransistor. The photo-transistor 7 controls a differential amplifier 11, 14, the outputs of which can be passed by gating diodes 22, 23 to a bi-stable pair 24, 25 which control a solenoid 44 via an emitter-follower 35 and a power amplifier 39, 41. The gates 22, 23 are rendered conductive by pulses applied at 48 from a source controlled in synchronism with the knitting machine to prevent false operation. The bi-stable pair 24, 25 enables the programme information to be stored even if the machine is shut down.