baber/WOPTO huggingface dataset:
Patent GB-1440537-A (GB)
Title: Boilers
IPC: F24H1/36
Filed: 1974-06-10
Abstract: 1440537 Boilers; arrangement of burner heads YGNIS SA 10 June 1974 [15 June 1973] 25588/74 Headings F4A and F4T In a boiler 1 operated with a gaseous or gasifiable fuel adjacent to heat exchange conduits 23 passing through a water chamber 7, a gas burner assembly 13 is provided with a number of sets of individual burner jets 14, each set being associated with a heat exchange conduit 23 such that air enters an inlet 11 in a pre-mixing chamber 19 and the hot gases pass through a lower portion or combustion chamber 25 of each heat exchange conduit 23 and then pass into a restricted cross-section 26 forming a convection chamber. The convection chambers 26 are provided with protuberences 28 to cause turbulence. Fig. 3 shows an enlarged view of part of the burner assembly 13 with sets of individual pilot jets 16.
Patent GB-753424-A (GB)
Title: An arrangement for suppressing the direct current component in television signals
IPC: H04N5/18
Filed: 1954-09-03
Abstract: 753,424. Television. STANDARD TELEPHONES & CABLES, Ltd. Sept. 3, 1954 [Sept. 8, 1953], No. 25589/54. Class 40 (3). An arrangement for removing the directcurrent component of a television wave comprises means for integrating each line portion in order to derive a potential determined by the energy of the line, means for delaying the wave for one complete line, and means for applying the derived potential to control the level of the delayed wave so that the wave contains substantially no direct-current component. In one way.of carrying out the invention, the derived potential is combined with the delayed wave with appropriate polarity. In another way, the derived potential is employed as the reference potential in a keyed clamp circuit restoring the delayed wave. Figs. 3 and 4 illustrate both ways of carrying out the invention, the first being obtained with switches 8 and 9 in the lower position, the second with the switches in the upper position. The original signal from circuit 1 is applied to two paths, one of which includes a one-line-duration delay network 3 and an amplifier 4, and the other of which includes an integrating circuit comprising valve R1 and condenser C1 At the grid of R1 the signal is restored line-by-line to a fixed potential UO by a clamp circuit B1 and then causes condenser C1, which is initially charged to the voltage UB of the H.T. source, to discharge through the valve to a potential U1, which, at the completion of the line, represents the energy of the line. This potential is then applied to a cathode-follower valve R3. In the first way of carrying out the invention, the cathode-follower output is transferred to and stored on a condenser C2 by a switch B2 rendered conducting by a pulse from a valve R4. Thereafter valve R2 is rendered,conducting by a pulse to recharge C1 rapidly to potential UB in readiness to ascertain the energy of the next line. The potential U2 on condenser C2 is then merely added to the output of amplifier 4 by placing switches 8 and 9 in the lower position. Amplifier 4 is arranged with sufficient gain to compensate for losses in network 3 and is arranged to remove the D.C. component. In the second way of carrying out the invention, switches 8 and 9 are placed in the upper position and elements B2, R4 and C2 are dispensed with. The output from the cathode follower is then applied directly to a clamp circuit B3 which is gated on at the end of the discharging period of condenser C1 so that the black level potential of the delayed line is clamped to the potential determined by integration of the undelayed line. With this arrangement a condenser 12 is included to remove the D.C. component from the delayed signal and amplifier 4 may be capacity coupled. The pulses for switching the two clamp circuits and valves R2 and R4 are derived from a stage 2 separating the synchronizing signals from the original signals.
Patent GB-256080-A (GB)
Abstract: 256,080. Marks, E. C. R., (Grasselli Chemical Co.). Sept. 29, 1925. Sulphur burners.-Sulphur is burnt at a pressure above atmospheric by enclosing the burner 1 in a gas-tight casing 5 supplied with compressed air through a pipe 6. The burner shown is of the rotary type supplied with molten sulphur from a receptacle 3 by a pipe 4, a limited supply of air being admitted around the pipe 4. The resulting gas mixture is mixed with an additional supply of air admitted through an adjustable space 7 and the gases pass on to a combustion chamber 2 in which the combustion is completed. The pressure applied to the air supply is transmitted through the gas in the burner and combustion chamber and may serve, to deliver the gas to the place of use, e.g. a sulphuric-acid plant.
Patent GB-1448415-A (GB)
Title: Cured epoxy polymer
IPC: C08G59/56
Filed: 1974-06-10
Abstract: 1448415 Epoxy resins WESTERN ELECTRIC CO Inc 10 June 1974 [11 June 1973 19 Feb 1974 1 May 1974] 25627/74 Heading C3B A cured epoxy resin comprises: (A) an adduct of two moles of the diclygidyl ether of bisphenol A and one mole of linoleic dimer acid, a diglycidyl ester of linoleic dimer acid or a mixture thereof; (B) up to 50% by wt. based on (A) of an elastomerically modified resin obtained by reacting a diglycidyl ether of bisphenol A or of bisphenol F (or mixture thereof) with a carboxyl terminated butadiene/acrylonitrile copolymer; and (C) a minor amount of a diglycidyl ether of bisphenol A or of bisphenol F (or mixture thereof). As curing agent is employed 16-60 parts by wt. of an acid anhydride per 100 parts by wt. of resin together with 0-30 parts by wt. of a dimer acid R(COOH) 2  where R is CH 2 (CH 2 ) 5 CH 2 , or a trimer acid of stoichiometric formula C 54 H 96 O 6 , (E) a polyamine in an equimolar ratio with the resin or (F) a polyamine in an equal mole ratio combined with the acid anhydride in an amount of at least 5 parts by wt. per 100 parts by wt. of the resin component. In examples compositions according to the invention are coated on epoxy-glass cloth laminates which are subsequently sensitized and further coated with an electroless copper coating and finally electroplated with copper.
Patent GB-1300267-A (GB)
Title: Transfer member withdrawal apparatus
IPC: G03G15/16
Filed: 1970-05-28
Abstract: 1300267 Feeding and delivering sheets XEROX CORP 28 May 1970 [4 June 1969 (2)] 25640/70 Heading B8R In a copying apparatus, an electrically biasable transfer member, e.g. a transfer drum 42, is separated from a photoconductive plate member, e.g. a drum 90, when a copy sheet is sensed as being misfed on to the transfer member, so that a developed image on the plate member is not transferred to the misfed sheet. A copy sheet is separated from a pile (72), Fig. 1 (not shown), by a roller (71) and fed via rollers (74) and guides (73) to the transfer drum 42 which has rising front stops 113 and gripper fingers 112 operable by a cam 201 and follower 107. The sheet is registered against the front stops which then retract as the gripper fingers grip the sheet in registered position. The cam 201 isstationarily mounted on the rotational axis 101 of the drum and is movable axially thereof by a solenoid (211), Fig. 8 (not shown), out of contact with the follower such that the transfer drum gripping a copy sheet can rotate a number of times, without the grippers and stops being reactuated, in order that images of various colours can be transferred to the sheet to produce a colour copy. The same solenoid (211) operates stripper fingers 64 which strip the released sheet from the drum and deliver it via belts (63) (62), guide (65) and a vacuum belt (83) to a stack (84). A misfed sheet on the transfer drum is sensed by a logic circuit which tests the correct passage of the sheet leading edge past photo-electric detectors (43) which activates a solenoid 301 which retracts arm 302 thereby causing a frame member 304 on which the transfer drum is rotatably mounted to pivot away from the photoconductive drum 90 about shaft 375. This may also be done manually to facilitate cleaning.
Patent GB-205513-A (GB)
IPC: H01J19/38
Filed: 1923-01-09
Abstract: 205,513. PÚri, F. Oct. 7, 1922, [Convention date]. Vacuum tubes.-In a grid consisting of a number of vertical elements 2 of rectangular shape mounted concentrically and radially about a filament cathode 3 by clipping upon two heads 10, the elements are formed with ribs and are preferably perforated as shown at 9 or of openwork construction. The electrostatic action of the grid may be improved by mounting a helix 11 in notches in the elements 2. The anode may consist of a number of vertical parabolic vanes 1 arranged opposite the spaces between the grid elements.
Patent GB-258477-A (GB)
Abstract: 258,477. Campbell, C. Feb. 8, 1926. Ink ribbons.-An ink ribbon consists of felted plant fibres and a material, preferably comminuted sponge, for increasing capillary flow of the ink towards exhausted areas. The fibres of the paper mulberry are preferably employed, in some cases mixed with hemp or jute fibres. The sponge material is comminuted by hammering and is then mixed with the fibres in a beater the mixture being formed into a thin sheet and inked.
Patent GB-1408838-A (GB)
Title: Optical deflector arrangement for use in holographic data storage devices
IPC: G11C13/04
Filed: 1973-05-30
Abstract: 1408838 Optical deflection THOMSON-CSF 30 May 1973 [2 June 1972] 25880/73 Heading G2J [Also in Divisions G4 and H4] Deflector apparatus e.g. for a high-density holographic data recording and read-out system comprises a telecentric lens L 1  which receives a parallel beam 2 from source S, an intermediate lens L2 which has a common focal plane F 2  with lens L 1 , a projection lens L 3  which focusses the beam from the lens L 2  on to a predetermined area A of e.g. a storage plane # and electrically controllable optical deflector means D positioned in the focal planes F 2  which controls the direction in which light is incident on to the area A. The deflector D may be of acousto-optical type which diffracts the incident light by an angle dependent on the pitch of the ultrasonic wavefronts. In a modification Fig. 2 (not shown), another deflector is provided which deflects light in a plane at right angles to the plane of the first deflector. In use as part of a data recording and read-out system, a laser beam is split into a reference and an object beam 28. An optical modulator carrying the data is placed in the path of the object beam and the deflection apparatus (as above) is arranged in the path of the reference beam.
Patent GB-637474-A (GB)
Title: Improvements in a slotting machine for castellated nuts
IPC: B23Q7/00
Filed: 1947-09-24
Abstract: 637,474. Milling- machines; slotting castellated nuts. JEBB, S., and STEEL NUT & J. HAMPTON, Ltd. Sept. 24, 1947, No. 25898. [Classes 83 (ii) and 83 (iii)] [Also in Group XXX] A slotting machine for castellated nuts comprises a milling cutter 7 under which the nuts A are fed on a support slide 4 by two spindles 1, 2 having helical grooves that form opposite angular recesses for receiving opposite corners of the nuts. The nuts A are delivered by a shoot 1a to the support slide 4, where they are engaged between the helically-grooved spindles 1 and 2, which are of opposite hand and are driven in opposite directions, The bottom of the shoot extends to the slide 4, and part of the front of the shoot is pivoted at a height little more than double the depth of a nut so that the nuts can freely engage between the spindles. The nuts are fed along the slide by the spindles and under a milling cutter 7 extending through a slot 8 in a spring-pressed member 5 bearing on top of the nuts. After being slotted, the nuts fall through a circular shoot 9 which has helically-arranged projections 14 which engage one of the faces of the nuts and rotate them through 120 degrees ready for a further slotting operation by means of a second milling cutter 7, past which they are fed by a second pair of grooved spindles. Thereafter, a final slotting operation is performed by a second shoot 9, a third pair of feed spindles, and a third cutter. At the end of each slide, a spring-pressed plunger 10 holds each nut against the walls of the grooves until the plunger is withdrawn by cam projections 12 on the spindle, timed to release the nut when it is registered over the shoot. The grooves in the spindles may terminate with the nut registered over the shoot. According to the Provisional Specification, the spindles have threads of the same hand and the tips of the threads are rectangular in cross-section so that the parallel front and rear faces of the nuts are engaged.
Patent GB-650803-A (GB)
Title: Composite laminated structural panel
IPC: E04C2/34
Filed: 1947-09-25
Abstract: 650,803. Dowels. PIERCE FOUNDATION, J. B. Sept. 25, 1947, No. 26052. Convention date, March 5: [Class 89(ii)] [Also in Groups VIII and X] A device 24 engages framing rails 14 of adjacent panel units 10 to maintain the edges of the units in register.
Patent GB-1055891-A (GB)
Title: A burner system for kilns,such as those used in the ceramics industry
IPC: C21B7/16
Filed: 1963-07-03
Abstract: 1,055,891. Burners. KERAMATIK G.m.b.H. July 3, 1963 [Dec. 17, 1962], No. 26323/63. Heading F4T. A liquid or gaseous fuel burner for a kiln comprises a vertical fuel/air supply tube 4 opening into a kiln combustion space and having a lower section 13 which is heated by radiation from the kiln combustion space to vaporize the fuel. An air supply pipe 5 enters the upper section 3 of the tube 4 which has a removable end cap 10. An oil pipe 6 supplies oil to a distributer ring 8 which spreads oil over the inner surface of the lower section 13 where it is vaporized. The air and vaporized oil mix are blown through a nozzle 9 into the kiln combustion space. The burner tube 4 is of steel or a ceramic and is mounted for axial movement in a cover-plate 11 fitted in a mounting flange 12 in a fire tube 2 of the kiln 1. In a further embodiment, Fig. 2 (not shown), the oil is supplied to the lower section 13 of the burner tube by an oil pipe coiled around the outside of the tube 4 and in which the oil is vaporized. In a further embodiment, Fig. 5 (not shown), the oil is supplied by a pipe extending through the end cap 10 and ending at the centre of the tube 4. Adjacent and axial to the outlet of this pipe is a rod along whose outer surface the oil flows to be vaporized. If the tube 4 is used horizontally it has an elliptical cross-section.
Patent GB-463114-A (GB)
Title: Apparatus for the automatic control of aircraft
IPC: G05D1/08
Filed: 1935-09-23
Abstract: 463,114. Automatic control systems. SIEMENS APPARATE UND MASCHINEN GES. Sept. 23, 1935, No. 26345. Convention date, Sept. 24, 1934. [Class 38 (iv)] [Also in Group XXXVIII] Steering; speed.-The elevator 13 of an aircraft is controlled by an inclinometer 1 and an altimeter 27 in conjunction, and the output of the propelling gear is controlled by the same or a separate altimeter. The latter control may be combined with control by a speed-responsive element 14. Should the propelling gear speed fall below a limiting value a centrifugal device 50 transfers the control of the elevator to the speed responsive device 14. The inclinometer 1 comprises a gyroscope arranged so that a tilt of the craft about a transverse axis moves a contact on an arm 2 along a resistance carried by a slide 4. This resistance is associated with a rotary magnet 9 to cause corresponding actuation of a device 12 to change the setting of the elevator. A turn indicator 10 may co-operate in this control through a floating lever 11. An altimeter 27, which may be adjusted by a wireless transmitter, through a servomotor 40 and relay circuits responsive to different wavelengths, or by a hand lever 30, actuates a contact 42 to energize selectively magnets 5, 6, which move the slide 4 under the contact arm 2 and modify the elevator setting to maintain altitude. The air-speed responsive device 14, which may be adjusted manually or electrically, as by wireless, is coupled to. gether with the altimeter 27, by a floating lever 18 to a contact arm 19 which co-operates with contacts on a member 20 to control a reversible motor 22 which adjusts the throttle lever 25, or other means controlling the output of the propelling gear. The speed-responsive device 14 also operates a contact on a resistance 51 which, with the resistance 4, is associated with contacts of a change-over switch 49, operated by a centrifugal device 50 from the motor driving the craft, and arranged to connect the rotary magnet 9 to the resistance 51 in place of resistance 4 when the speed of this motor is too low.
Patent GB-1343822-A (GB)
Title: Metallization system for semiconductors
IPC: H01L21/00
Filed: 1971-04-19
Abstract: 1343822 Etching TEXAS INSTRUMENTS Inc 19 April 1971 [19 May 1970] 26362/71 Heading B6J [Also in Division H1] A silicon device wafer with a patterned oxide coating is prepared for electrode deposition by treating for 10 minutes at 150-200 C. in concentrated sulphuric acid, rinsing in deionized water, treating for 5 minutes in boiling nitric acid, rinsing, dipping in dilute hydrofluoric acid or a 10% solution of ammonium fluoride for 6 seconds, rinsing in cold deionized water and finally rinsing in acetone and drying. After depositing 8-15 Î 10<SP>3</SP>  of aluminium and a 8-20 Î 10<SP>2</SP>  overlayer of molybdenum a photoresist etching mask is provided and the exposed parts of the metal layers etched away in a mixture of 70 ml. phosphoric acid, 15 ml. acetic acid, 3 ml. nitric acid, and 5 ml. deionized water at 50-70 C. for 45-60 seconds.
Patent GB-151015-A (GB)
Title: Improvements in or relating to suction burners
IPC: F23D11/10
Filed: 1920-09-14
Abstract: 151,015. Anciens Etablissements Loy et Aube, (Assignees of Soc. d'Utilisation des Combustibles Liquides). Sept. 15, 1919, [Convention date]. Addition to 148,385, [Class 75 (i), Burners &c.]. Air-pressure sprayers; nozzles for producing whirling sprays.-In the burner described in the parent Specification, the oil pipe c arranged in the air nozzle b carries two helical blades p of variable pitch so that the position of the flame relative to the burner may be varied. In the construction shown, the oil pipe c screws into the burner body a and is turned to vary the pitch of the helical blades, the ends of the blades remote from the oil pipe being pivoted to a sleeve q which is formed with a projection s engaging an eye in a rod t fixed to the burner bodv a.
Patent GB-468911-A (GB)
Title: Improvements in or relating to processes and devices for the sterilizing and coolingof gas-containing liquids
IPC: A23L3/18
Filed: 1936-09-29
Abstract: Beer and other gas-containing liquids are sterilized and cooled in continuous flow apparatus by treating under a saturation pressure corresponding to the sterilizing temperature, the saturation pressure being adapted during the heating and cooling to the temperature at any given time, for example by the provision of suitably dimensioned flow cross-sections or insertion of reducing valves in the apparatus. The cross-sections of the flow passages in the pre-heating and heat-maintaining portions of the apparatus, which may be of the plate or pipe type, may be made large while those in the cooling portion may be small and throttling means, e.g. valves may be provided in the passages. A throttle valve at the end of the apparatus may maintain only a moderate difference of pressure between the interior and the exterior.  In an example, beer is at a pressure of about 7 atmospheres above atmospheric in the pre-heating zone, at about 6,2 atmospheres in the heat-maintaining zone, the beer being heated to 63 DEG  C., the pressure diminishing to about 0,3 atmospheres above atmospheric in the cooling zone.  Reference has been directed by the Comptroller to Specifications 372,911, 417,495, and 433,760.
Patent GB-815538-A (GB)
Title: N-nitroso-hydroxylamines and fungicidal agents
IPC: A01N51/00
Filed: 1957-08-22
Abstract: The invention comprises compounds of the formula <FORM:0815538/IV (b)/1> in which R is an aliphatic, araliphatic or cycloaliphatic radical, and X is hydrogen, ammonium, substituted ammonium or one equivalent of a metal.  Suitable radicals R include methyl, isopropyl, benzyl, butyl, cyclohexyl, cycloheptyl and cyclo-octyl. Suitable radicals X include H, NH4, alkyl-ammonium, cycloalkylammonium, e.g. cyclohexyl-ammonium, one equivalent of the mono- or polyvalent metals of Groups Ia to VIIa and VIII of the Periodic System, e.g. Na, K, Ca, Ba, Ce, Fe, Ni or of Groups Ib to IVb, e.g. Ag, Cu, Zn, Hg, Al, Pb; or alkyl-mercury, alkoxyalkyl-mercury, aryl-mercury and halogen-mercury.  These compounds may be prepared according to the process of Specification 815,537.ALSO:Fungicidal compositions contain as active ingredients compounds of the formula <FORM:0815538/VI/1> in which R represents an aliphatic, araliphatic or cycloaliphatic radical and X is hydrogen, ammonium, substituted ammonium or one equivalent of a metal.  They may be used in aqueous solution or dispersion, dissolved in oil or as an oily solution emulsified in water, or in the form of preparations capable of being scattered or dusted, in admixture with inert materials such as talc, clay or shale meal; wetting agents, e.g. alkyl or aryl sulphonates, or adhesives based on resins, wood ethers, waxes or the like may be incorporated in the preparations.  Suitable radicals R include methyl, isopropyl, benzyl, butyl, cyclohexyl, hydroxymethyl - cyclohexyl, cyano - cyclohexyl, cycloheptyl and cyclooctyl. Suitable radicals X include H, NH4, alkyl-ammonium, cycloalkyl-ammonium, e.g. cyclohexyl-ammonium, one equivalent of the monovalent or polyvalent metals of Groups Ia to VIIa and VIII of the Periodic system, e.g. Na, K, Ca, Ba, Ce, Fe, Ni or of Groups Ib to IVb, e.g. Ag, Cu, Zn, Hg, Al, Pb; or alkyl-mercury, alkoxyalkyl-mercury, aryl-mercury and halogen-mercury.  The compounds may be used for the protection against fungi of substrates such as cultivated plants, fruit, paper, textiles, glue, tanning liquors, leather, wood, mechanical wood pulp, synthetic substances or emulsions of synthetic substances, and lacquers.  Examples describe the application of compositions containing various compounds of the formula given against specific fungi.  Specification 815,537, [Group IV (b)], is referred to.
Patent GB-155956-A (GB)
Title: A new or improved catch or fastener for use in connection with belts and the like such as those employed in aeroplanes for the safety of aviators
IPC: B64D25/06
Filed: 1919-10-29
Abstract: 155,956. Wilshaw, E. Oct. 29, 1919. Hook fastenings.-A quick-release belt fastening for aviators comprises a flat plate 1 to which is hinged a member 4 curved at the hinged end 5 as indicated, both being made of sheet metal bent to double thickness. The plate 1 is fastened to one end 3 of the belt by an oblong loop 2, and a similar loop 11 on the other end 10 of the belt passes over the hinged member 4, which is therr secured parallel to the plate 1, by the loop 8 hinged to the plate 1. A blade spring 7 causes the member 4 to fly outwards as soon as the loop 8, is manually operated to release it, allowing the loop 11 to become disengaged.
Patent GB-481034-A (GB)
Title: Improved manufacture of container caps with liners and of liner material for said caps
IPC: B65D41/12
Filed: 1936-10-01
Abstract: A sheet of guttapercha, balata, chicle, or their compounds coated with a cellulose derivates and/or a natural or synthetic resin to form a lining material for receptacle caps may contain gum or fillers such as zinc oxide, magnesia, chalk or talc. Colouring matters, e.g. red oxide or lamp black may be added.