baber/WOPTO huggingface dataset:
Patent GB-781255-A (GB)
Title: Process for the production of new derivatives of mucic acid
IPC: C07C233/00
Filed: 1956-04-25
Abstract: The invention comprises amides of tetraacetyl mucic acid of the general formula <FORM:0781255/IV (a)/1> wherein R is an aliphatic hydrocarbon containing up to 5 carbon atoms, R1 is hydrogen or an aliphatic hydrocarbon radical containing up to 5 carbon atoms and Ac represents an acetyl group, and their preparation by treating a tetraacetyl mucic acid dibromide or dichloride with 2 mols of an amine of the general formula HN(R)R1, in the presence of an acid-binding agent. In examples tetra-acetyl mucic acid dichloride is treated with (1) diethylamine and (2) di-n-butylamine to give the corresponding bis-amides; other specified products are the tetra-acetyl mucic acid bis amides derived from dimethylamine, ethylamine, di-n-propylamine, di-isobutylamine, di-b -methallylamine, butylamine and N-methyl-N-butylamine.
Patent GB-865533-A (GB)
Title: Binocular visual training device
IPC: G02C5/00
Filed: 1958-04-22
Abstract: 865,533. Eye training devices. ZELTZER, H. I., and SIEMAN, L. A. April 22, 1958 [May 6, 1957], No. 12669/58. Drawings to Specification. Class 97(1) An apparatus for aiding the learning of binocular vision comprises a game-board having black and green squares on which are movable black and red game pieces. The board and game pieces are viewed by spectacles having in front of one eye a green glass, and in front of the other eye a red glass.
Patent GB-218068-A (GB)
Title: Mechanism for shifting belts from fast to loose pulleys and vice versa
IPC: F16H7/22
Filed: 1923-05-11
Abstract: 218,068. Landye, T. May 11, 1923. Connecting and disconnecting arrangements.-In belt-shifters, a beltengaging roller A is carried on a spindle K in crank-arms B<1> secured on a shaft L supported in bearings in a forked bracket secured to a turntable H turning on a vertical axis in a stationary frame M. A hand-wheel or lever C is secured to the shaft L. When the belt is to be shifted, the wheel &c. C is grasped, the turntable is swung to incline the roller A to the line of the belt and tEe shaft is then rotated to press the roller against the flat face of the belt.
Patent GB-130755-A (GB)
Title: Improvements in or relating to Drying Powdered Material.
Inventor: IONIDES ALEXANDER CONSTANTINE
IPC: F26B17/16
Filed: 1918-08-06
Abstract: 130,755. Ionides, A. C. Aug. 6, 1918. Drying and calcining furnaces.-Hydrate of alumina is dried and subsequently calcined by passing it downwards through temperature zones of increasing intensity maintained in successive portions of the surface of an upright container. The apparatus consists of a hollow upright tubular member a surmounted by a conical cover a' that stands in a hopper having its lower surface formed as an inverted cone c'. In the interior of the tube a is a column a<3> of refractory material and the annulus b thus formed is heated by the flame from a burner j, which burns a mixture of gas and air in correct proportions to secure complete combustion. The tube a is surrounded by other tubular members c, e which form a second combustion space f<1> for the flames from another bur. ner j<1>, and flues g leading to an outlet g<1> for the products of combustion, the outlet g<1> being placed below the level of the burners. The space i between the tubes a and c forms the drying chamber, and the tube a is so shaped that the space i increases in area below the point where a maximum temperature is obtained. The aluminium hydrate is introduced into the conical hopper c' and fills the space i, the dried material being withdrawn from time to time through a passage d. In use, the material passes downwards slowly as the dried charge is withdrawn and passes be. tween surfaces of gradually increasing tempera. ture until it is dried, then calcined and finally cooled as it passes below the level of the burners.
Patent GB-1417226-A (GB)
Title: Composite elastomeric diaphragm
IPC: F24F11/76
Filed: 1974-03-22
Abstract: 1417226 Valves HILLS-McCANNA CO 22 March 1974 [4 April 1973] 12785/74 Heading F2V A valve has a flow control diaphragm 20 including at least two different elastomeric materials 40, 41 which have been vulcanized to each other in a single operation. The upper material may be relatively-hard urethane rubber having a minimum tensile strength of 4000 p.s.i., a minimum elongation of 300% and a Shore "A" hardness of 70 while the lower material may be ethylene propylene or EPDM rubber resistant to attack by chemical or radioactive materials having a minimum tensile strength of 2500 p.s.i., a minimum elongation of 350% and a Shore "A" hardness of 60. Vulcanization may take place in a single cycle at 330 F. and for about thirty minutes, the diaphragm being moulded in either the open or closed configuration and containing fabric plys 43 to secure a stud 30 for engagement by an axially displaceable head 26. The latter is adjusted by a screw 28 and a hand wheel 31 and has lugs (not shown) to engage longitudinal grooves in a bonnet 23. The properties of the diaphragm may be altered by making one layer of material thicker or thinner in relation to the other.
Patent GB-656134-A (GB)
Title: Temperature regulators applicable, for example, to automobile heaters
IPC: G05D23/12
Filed: 1947-05-12
Abstract: 656,134. Temperature-responsive actuating elements. FULTON SYLPHON CO. May 12, 1947, No. 12809. Convention date, July 18, 1946. [Class 64(ii)] [Also in Group XXIX] Means for controlling the flow of heating fluid to a space to be heated comprises a thermostatically-actuated valve, an expandable chamber connected to the valve to preset the temperature at which it will close, means for adjusting the volume of the chamber, and means operated by the volume-adjusting means at the end of its regulating movement for positively closing the valve. As applied to an automobile heater, the controlling means comprises a valve 15 carried by a bellows 19 connected by a capillary tube to a coil 23 containing volatile liquid and disposed in the automobile, and by a member 24 to a bellows 26 which is connected by a capillary tube 31 to a bellows 35 also disposed in the automobile, and which determines the temperature at which the valve will close. The bellows 26, 35 contain air gas or vaporizable liquid. The bellows 19 and the coil 23 and the bellows 26, 35 thus form two independent sealed systems. The volume of the bellows 35 and. therefore. of the bellows 26, is adjustable through a nut 37 secured to the end 36 of the bellows 35 and actuated by a screw thread 48 on a spindle 50 rotated by a knob 64. The valve 15 may be closed independently of the temperature in the automobile by a wire 39 secured at one end to the nut 37 and at the other to a member 40 adapted to abut against the end 44 of a bracket 42 secured to the end 25 of the bellows 26. The spindle 50 carries a pinion 52 meshing with an idler wheel 58 mounted on a stub shaft 57 secured to a plate 55 rotatable over a fixed, internally-toothed ring gear 53 and secured to a sleeve 59 carrying a pointer 62 which moves over a fixed scale 61 bearing the words off, cool, normal, and warm, at intervals of 90 degrees. The words and the pointer can be seen through a transparent annular ring 67 formed in a flange 65 on the knob 64. Specification 656,133, is referred to.
Patent GB-183607-A (GB)
Title: An improved indicating device, particularly suitable for use with bell pushes
IPC: G08B5/02
Filed: 1921-05-05
Abstract: 183,607. Day, W. I. L. May 5, 1921. Press - button switches; indicators.- A bell push for doors is provided with means whereby information is conveyed to a caller. The push g, when pressed, forces the lever g<1> downwards and completes the circuit through the terminals k. At the. same time the card-holder d falls and discloses a message card e<2>.
Patent GB-235372-A (GB)
Title: Improvements in or relating to universal joints or couplings for conveying rotary motion
IPC: F16D3/40
Filed: 1924-05-26
Abstract: 235,372. B.S.A. Tools, Ltd., and Ogilvie, W. May 26, 1924. Universal joints of the type wherein forked ends on the shaft ends disposed at right-angles to one another are connected to an intermediate member by transverse joint pins. The intermediate member 1 has formed on each end a segmental flange or rib 5, 6, the ribs being at right angles to one another and engaging corresponding slots or grooves 7, 8 in the lower part of the forked ends. One of the joint pins preferably passes through a transverse hole in the centre of the other pin.
Patent GB-128061-A (GB)
Title: Improvements in Apparatus for Raising Acids or other Liquids.
Inventor: PREVILLE CHRISTIAN DE
IPC: F04B9/10
Filed: 1918-08-08
Abstract: 128,061. Preville, C. de. Aug. 8, 1918. Direct air-pressure apparatus, automatic; valves for pressure fluid, actuation of; valves for pressure fluid, arrangement of.-Apparatus for raising acids &c. comprises a stoneware vessel B with inlet and delivery valves C<1>, C<2> for the liquid and connected by lead &c. pipes E to the inlet and exhaust cocks h, i for compressed air. The valves h, i are operated by a piston b in a cylinder a, the piston-rod being connected to a counterweight p. The cylinder a has a needle valve r<3> for controlling the inlet of compressed air to the top of the cylinder and a valve r<4> for controlling its escape when a valve s is opened by the piston at the bottom of its stroke through a lever 1. On the descent of the piston, a pawl e carried by the piston-rod actuates a four-tooth ratchet f and thereby turns the ratchet spindle through 90 degrees. The spindle carries two disk-couplings g, g<1> connecting the cocks h, i to the spindle. Two chambers B may be controlled alternately by the piston b, two pawls e, ratchet f, and valves h, i.
Patent GB-770970-A (GB)
Title: Improvements relating to motor vehicles
Filed: 1955-05-04
Abstract: 770,970. Motor vehicles. DAIMLER-BENZ AKT.-GES. May 4, 1955 [May 4, 19.54], No. 12948/55. Class 79(3) and 79(5). In a vehicle having a rearwardly disposed, flexibly and longitudinally mounted engine and variable speed gearing unit 5 and an operating rod 10 connected at opposite ends to the gearing and the gear lever 9, a thrust rod 14 is disposed near and extends substantially in the same direction as the operating rod 10, the thrust rod 14 being connected to the gearing housing 6 and the vehicle frame 13 with the interposition of resilient members. The thrust rod is stated to resist unintentional gear change caused by movement of the unit 5 due to its flexible mounting. As shown the invention is applied to an omnibus.
Patent GB-710390-A (GB)
Title: Variable-frequency ultrasonic transducer
IPC: B06B1/06
Filed: 1952-05-22
Abstract: 710,390. Couplings for conveying ultrasonic energy. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROT. May 22, 1952 [May 23, 1951], No. 12965/52. Class 40 (4). In an ultrasonic transducer, the active vibrating element, e.g. piezo-electric or magnetostrictive, is sandwiched between two layers of liquid, the thicknesses of which can be adjusted to tune the transducer to the frequency to be received or transmitted. The piezoelectric crystal 12, Fig. 2 is located between two layers of mercury 13, 14 communicating with reservoirs 30, 31, enclosed by flexible walls 32, 33 and positioned in clamping members 17, 18. The parts 15, 16 are secured to casings 20, 26 threaded in opposite senses to a sleeve 23 secured to the clamping member 17. Thus, rotation of either casing relative to the sleeve adjusts the thickness of the corresponding layer of mercury. The layers 13, 14 act as electrodes and are respectively connected via the casing and by the part 16 insulated from the casing to the cable 35.
Patent GB-600012-A (GB)
Title: Aluminothermic and like exothermic processes
IPC: C22B5/04
Filed: 1944-07-07
Abstract: Thermo - aluminic and like exothermic processes for the extraction of metals and alloys from metal compounds are characterised by the feature that the reaction is carried out in the critical interval between the highest and lowest temperature in which non-metallic elements like carbon, sulphur, phosphorus volatilise, whilst metal vapours do not escape, the said interval being reached and maintained by the addition of alkali-metal or alkali earth metal peroxides, especially barium peroxide, during the reaction.  The said critical temperature may alternatively be reached by the addition of the peroxide in the period shortly after the termination of the reaction. The invention may be applied to the production of ferro-alloys and of chromium.  The proportion of added fluxes should be kept as low as possible in order to obtain high quality slag.
Patent GB-1192913-A (GB)
Title: Dispersive Delay Lines
Inventor: BAYNHAM ALEXANDER CHRISTOPHER
IPC: H01P9/00
Filed: 1966-03-24
Abstract: 1,192,913. Semi-conductor devices; dispersive delay lines. MINISTER OF TECHNOLOGY. 23 June, 1967 [24 March, 1966], No. 12980/66. Headings H1K and H1W. A dispersive delay line for electrical signals having a time-variable frequency comprises a body 5 of a material having an excess of either electrons or holes; e.g. extrinsic InSb at room temperature or liquid nitrogen temperature or pure Na at 4À2‹ K; in which the product of cyclotron frequency # c  and collision relaxation time T is much greater than unity, the body 5 being held in a magnetic field and being provided with means for converting the electrical signals into electromagnetic radiation and for launching this radiation into the body 5 parallel to the field. The launcher may comprise a transmitting coil 3 operated by an oscillator 1, or an electric dipole or current source may be used. The wave may be coupled out of the body 5 by similar means, the coil 7 shown being disposed at right angles to the coil 3. Insertion losses to the delay line may be reduced by grading the magnetic field or free carrier concentration, the latter being effected by varying the bulk dopant concentration or specimen cross-sectional area along the length of the body 5.
Patent GB-638963-A (GB)
Title: Improvements in duplicating machines
IPC: B41L7/08
Filed: 1946-11-16
Abstract: 638,963. Rotary duplicators. FORD, F. R. Nov. 16, 1946, No. 13084/48. Divided out of 638,902. [Classes 100 (i) and 100 (ii)] [Also in Group XXIV] In a rotary mirror-script duplicator, a feed tray and moistening-device, including a tank for holding moistening-liquid, are constructed as a single unit,. these parts being connected by a rigid plate which forms the top of the tray and carries the tank on its underside and a support for a moistening-pad on its upper side. As shown, the tray comprises a box-like structure 17 having side plates 18, a front plate 19 and a top plate 16, and the moistening- device comprises a tank 21 secured to the plate 19 and provided with upwardly-projecting tubular parts 22 which extend through slots 20 in the plate 16 and are fixed to a bar 23 to which a pad-holder 24 is detachably secured by T-headed pins 29, the whole unit being supported on feet 67. The forward part of the plate 16 engages grooves in the side frames of the machine. Latches 38 pivoted at 39 to the side plates 18 clip over pins 41 to hold the unit in place. Foolscap sheets may be stored on the base of the unit and quarto &c. sizes on one or more shelves 34. An opening 36 in the plate 16 provides access to a filler cap 37 for the tank 21. A drum 12 carrying the master sheet is rotated by a hand-crank (see Group XXIV). Specifications 565,787 and 584,833 are referred to.
Patent GB-543264-A (GB)
Title: Improvements in or relating to the recovery of bromine from aqueous salt solutions containing bromide compounds
IPC: C01B7/09
Filed: 1940-08-16
Abstract: 543,264. Bromides, bromates. WILLIAMSON, A. T., BRADLEY, F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 16, 1940, No. 13094. Drawings to Specification. [Class 1 (iii)] In the recovery of bromine from gases resulting from the blowing of dilute brominecontaining liquors with air &c. by treating the gases with a constantly circulating alkaline liquor, at least part of the carbon dioxide is removed from the system before the absorption step. This may be effected (1) by acidifying the bromine-containing liquor and blowing it with air to remove carbon dioxide before treating it with an oxidizing agent such as chlorine to liberate the bromine, (2) by precipitating the carbon dioxide as an insoluble carbonate before the solution is oxidized, (3) by removing carbon dioxide from the air used for blowing. Specification 526,542 is referred to.
Patent GB-478058-A (GB)
Title: Improvements in and relating to methods of taking and reproducing motion pictures in natural colours and apparatus and films therefor
IPC: G03B33/16
Filed: 1936-05-08
Abstract: 478,058. Colour kinematography. PIRGO, A. HELM-, and PUSZET, J. May 8, 1936, No. 13107. [Classes 97 (i) and 98 (ii)] Colour kinematograph pictures are taken and projected in pairs, each pair being projected on the screen simultaneously in superimposed relationship, and one pair is taken and projected through colour filters, fI and #II of colours of wavelengths substantially 500ÁÁ and 605ÁÁ, and the succeeding pair through colour filters fI<1> and fII<1> of colours of wavelengths substantially 640ÁÁ and 430ÁÁ. The pairs of pictures may comprise identical or stereoscopic views. The arrangement of the pictures may be as shown in Fig. 2, or as shown in Fig. 3, with the pictures of each pair staggered longitudinally and the provision of a sound track. The filter arrangement may comprise fixed filters c, d, combined with a movable three-window filter a, b, a, Fig. 4, reciprocated vertically. In an example the filters fI, fI<1>, fII and fII<1> may be green, red, orange-yellow and blue respectively.
Patent GB-717501-A (GB)
Title: An improved method of transporting wet sheets of paper and the like
Inventor: LEVENSON GERALD ISAAC PASTERNA
IPC: G03D3/12
Filed: 1951-06-01
Abstract: 717,501. Photographic developing apparatus. KODAK, Ltd. Sept. 1, 1952 [June 1, 1951], No. 13115/51. Class 98(2) [Also in Group XXX] Apparatus for treating thin flexible sheets with a processing liquid comprises a vessel containing processing liquid, a travelling web or a system of interlaced webs contained therein and defining a devious path, and means for propelling the liquid at numerous points against a portion of the surface of the web or system of interlaced webs so as to ensure the adherence of the sheets to the moving surface during the whole passage of the sheets through the liquid. As shown in Fig. 4, four rollers 7 are supported by a frame 14 and drive a continuous web 16. One of the rollers is driven mechanically and may, if necessary, be geared to the other three rollers. A flat box 11, Fig. 3, is lowered between the rollers and fastened by lugs 20 engaging brackets 19 on the end plates 15 of frame 14. Discs 9 on the box 11 engage the web so that the web has a V-shaped path around the box. Holes 13 are formed in the box. preferably spaced more closely where the sheets enter, and distributed so as to ensure even processing (if desired). The frame 14 is placed in a compartment, e.g. the developing compartment, of a continuous photographic processing apparatus, and processing liquid, which extends up to the upper rollers, is pumped from the bottom of the compartment to a pipe 10 leading into the box 11. Sheet material, such as photographic negatives or prints, is inserted between the web and the box. and is held by the pressure of liquid issuing from holes 13 against the web 16, which carries the material through the compartment. Instead of a continuous web, the system of interlaced webs described in Specification 669,405 may be used. In continuous photographic processing apparatus, the sheets emerging from the developing compartment may be automatically fed to other compartments for further processing (e.g. rinsing, fixing and washing). These other compartments may be constructed in the same way as the developing compartment, or may be of different construction.
Patent GB-728274-A (GB)
Title: Ironing tables
IPC: D06F81/04
Filed: 1953-05-11
Abstract: 728,274. Stands. OLANDER, K. E. May 11, 1953, No. 13123/53. Class 52 (3). An ironing-table stand has crossed front and rear legs in vertical planes substantially parallel to the sides of the board and feet 31, 40 extending transversely each having two points of contact with the floor, one foot being provided with a levelling or stabilizing means to compensate for floor irregularities. In the pieferred construction the adjustable foot 31 can rock on a fulcrum 48 on the lower end of the leg and has an arcuate serrated bail 46 passing through slots in the leg, the serrations engaging the slot edges. The splay of the legs is adjustable by means of a rack on the underside of the ironing board. Specification 724,348 is referred to.
Patent GB-1577697-A (GB)
Title: Process for the preparation of 1 - amino - 8 - naphthol-3,6-disulphonic acid (h-acid)
IPC: C07C/
Filed: 1978-04-04
Abstract: Process for preparing mono alkali-metal salts of 1-amino-8-naphthol-3,6-disulphonic acid (H acid mono alkali-metal salts) by reacting, under pressure and at elevated temperature, a mixture of naphthylaminetrisulphonic acids, or their salts, with an alkali metal hydroxide solution, and then precipitating and separating off the 1-amino-8-naphthol-3,6-disulphonic acid in the form of the mono alkali-metal salt by acidifying. The process is particularly advantageous because the isolation of the T acid, which has hitherto been customary, is dispensed with, resulting in higher yields and less waste liquors and salt quantities than previously.
Patent GB-167831-A (GB)
Title: Improvements in or relating to motor fuel
IPC: C10L1/02
Filed: 1920-05-12
Abstract: Motor spirit comprises alcohol having in solution a readily dissociable salt of a nitrogenous base and an oxyacid of nitrogen that on explosion of the fuel yields only gaseous products of decomposition.  Salts specified are ammonium nitrate, hydroxylamine nitrite, hydroxylamine nitrate, and hydrazine mononitrate.  Two or more salts may be used, and there may be present ether, acetone, benzol or other liquid fuels.  In an example 1-2 per cent of ammonium nitrate is dissolved in alcohol, aqueous alcohol, or denatured alcohol.  The alcohol may be denatured by 2 per cent of wood naphtha or methyl alcohol, 5 per cent of benzol, and a trace of methyl violet or other dye. Specification 114,827 is referred to.
Patent GB-553343-A (GB)
Title: Electric water heaters
IPC: H05B3/78
Filed: 1941-10-14
Abstract: 553,343. Electric immersion heaters; thermal switches. RUSH, H. A. Oct. 14, 1941, No. 13191. [Class 39 (iii)] [Also in Group XXXVII] An insulating body 10, threaded at 12 for engagement with the neck of a hot water bottle, carries a detachable insulating housing 14 having a non-circular recess 15 to receive a metal 'holder for a carbon electrode 30. A tubular carbon electrode 34 is secured to a reduced portion 33a of the body. Spacers 35 are provided at one or both ends of the electrode 30 to prevent contact with the outer electrode in the event of breakage. Access of liquid to the space between the electrodes is provided for by holes 14a, 14b, and a drain hole is provided at the bottom of the housing 14. The current supply is controlled by a bimetallic contact member 16 engaging a contact screw 22 which is externally adjustable to vary the temperature at which the contacts open.
Patent GB-132701-A (GB)
IPC: D06F45/00
Abstract: 132,701. Pearson, T. B. Jan. 11, 1919. Two-roller mangles and wringers, driving-gear for.-The intermediate double pinion G, H or equivalent gear-wheel is secured on a shaft J which is journalled in the end frames K, L. The invention is shown as applied to a two-roller machine of an ordinary type.