baber/WOPTO huggingface dataset:
Patent GB-960943-A (GB)
Title: Fractionation method
IPC: B01D3/42
Filed: 1962-05-03
Abstract: In the separation of butadiene from a selective solvent such as furfural, in which it is dissolved, by stripping, heat is recovered from the hot stripped solvent by controlling the level of liquid in the stripper removing a variable flow stream of solvent, dividing the solvent into a constant flow stream and a smaller variable flow stream and recovering heat from the constant stream. The heat may be used in the reboiler of a fractionator such as that used to separate butadiene from acetylenes in the hydrocarbon stream stripped from the solvent.  The variable solvent stream may be cooled and recombined with the cooled constant stream or may be recombined and further heat recovered e.g. to heat a hydrocarbon feed stream to an absorber where butadiene is dissolved in the solvent.  In the latter case the flow of solvent through the heat exchanger is kept constant by means of a variable by-pass.
Patent GB-893019-A (GB)
Title: Improvements relating to the formation of coatings on metal surfaces
IPC: C23C22/04
Filed: 1960-05-13
Abstract: The method of Specification 845,259 is modified by (a) replacing the polyacrylic acid by an equal amount of polyacrylamide, a polyvinyl alkyl ether having 1-4 carbon atoms in the alkyl group, or a copolymer of methyl vinyl ether and maleic acid; and/or (b) partly replacing the hexavalent chromium compound by phosphoric acid so that the proportions, calculated respectively as CrO3 and PO4, are from 7:1 to 1:3 by weight.  The ratio of hexavalent chromium compound (calculated as CrO3), plus phosphoric acid (calculated as PO4) if present, to polymer should be from 8:1 to 1:1 by weight.  The preferred chromium compound is chromic acid.ALSO:The method of Specification 845,259 is modified by (a) replacing the polyacrylic acid by an equal amount of polyacrylamide, a polyvinyl alkyl ether having 1-4 carbon atoms in the alkyl group, or a copolymer of methyl vinyl ether and maleic acid; and/or (b) partly replacing the hexavalent chromium compound by phosphoric acid so that the proportions, calculated respectively as CrO3 and PO4, are from 7 : 1 to 1 : 3 by weight.  The ratio of hexavalent chromium compound (calculated as CrO3), plus phosphoric acid (calculated as PO4) if present, to polymer should be from 8 : 1 to 1 : 1 by weight.  The preferred chromium compound is chromic acid.
Patent GB-1482326-A (GB)
Title: Flat knitting machines
IPC: D04B15/74
Filed: 1975-04-24
Abstract: 1482326 Knitting machines FABRIQUE NATIONALE HERSTAL SA 24 April 1975 [14 May 1974 24 Dec 1974] 17066/75 Heading D1C The needles 3 of a flat. e.g. V-, bed knitting machine are adapted to have their butts 4 sunk into the needle bed by means of bifurcated rockers 5 controlled by reciprocable selectors 6, the selectors being selectively advanced and retracted, particularly for widening and narrowing operations, respectively; as by means of widening fingers 27 and narrowing fingers 28 associated in pairs. The legs 13, 14 of the rockers 5 have a braking effect on needles in the sunk-butt position. Each pair of fingers 27, 28 is mounted by levers 32, 43 on a support 33 which is displaceable along a shaft 34 by screw-threaded engagement between bifurcated members as 37 associated with the support 33 and a screw 40. A reset comb 29 with butt-engaging plates 50, 51 cancels the previous selections made by the fingers 27, 28 the comb being rigidly mounted on a shaft 42 which also engages the bifurcated members 37 to prevent rotation about the screw 40. The plates 50, 51 of the comb are interchangeable with plates of different widths according to the working width of the machine. The shaft 34 is rotatable under the control of cams to determine the position of selector 6 which may adopt an intermediate position in which a butt 26 thereon is in the path of selecting cams. In the Fig. 8 embodiment additional selection is provided by an apertured Jacquard drum 55 cooperating with pins 53 to determine the angular position of a pivotal element 52 and accordingly to cause a rocking lever 64 either to engage a finger 56 or a finger 57 or to enter the space therebetween. In a further embodiment, without Jacquard selection, a surface of the selector 6 cooperating with the tail 15 of rocker 5 has two steps so that the rocker has an intermediate angular position and the needle butt 4 an intermediate effective height. The butts 26 on the selectors may have three different heights.
Patent GB-1031038-A (GB)
Title: Electric switches
Inventor: BAIN ROBERT
IPC: H01H9/10
Filed: 1963-05-01
Abstract: 1,031,038. Switches held set and freed mechanically; fuse carriers. HENRY ALLDAY & SON (1922) Ltd. June 8, 1964 [May 1, 1963], No. 17100/63. Heading H2B. An electric switch comprises a face-plate 1, Fig. 2 (not shown), a switch mechanism 2 mounted on the rear of, and having its operating lever 3 extending through an aperture in, the face-plate, and a pivotally-mounted carrier 5 for a cartridge-type fuse 10, the arrangement being such that the axes of the fuse 10 and lever 3 and the pivotal axis of the carrier 5 are substantially parallel. The fuse 10 when in its operative position bridges two contacts one of which is spring-biased to maintain the fuse and carrier in position. A lip 13 on the face-plate 1 ensures that when the carrier 5 is pulled out the fuse 10 is not exposed until after it has been disconnected from its associated contacts.
Patent GB-125670-A (GB)
Title: Improvements in the Construction of Wings and the like for Aerial Machines.
Inventor: EUGEN CHARLES MARIE VON
IPC: B64C3/00
Filed: 1916-11-29
Abstract: 125,670. Eugen, C. M. von, and Letchford, H. Nov. 29, 1916. Planes and the like, construction and arrangement of.-Wings, balancing- planes, elevators, &c, for aeroplanes and air-ships, are composed of tubular or built-up metal spars, metal ribs formed with corrugated sinuous webs, and a covering preferably of sheet metal. Figs. 2 and 4 show a rib formed of upper and lower plates F, G joined by a sinuous web H consisting in the case of main ribs, of two corrugated strips placed together as shown, and in the case of secondary ribs, of a single corrugated strip. The strips are formed with nanges H<2> at the bends for connexion to the plates F, G. The spar shown in Fig. 6 is composed of two channel members C<2> secured back to back, their edges being turned over for stiffness. The webs of the spars may be formed with flanged apertures to receive register rings as described in Specification 110,433. The ribs are provided with apertures to allow of threading over the spars, to which they are then secured by bolted anglepieces C<3>, packing-pieces C<4> being inserted. Fig. 8 shows a rear spar carrying a hinge member K for an aileron, the rear edge of the wing being closed by a plate L. Fig. 10 shows means for attaching eyes M or other parts, such as levers, struts, or wiring-plates, to the spars by means of bolts N surrounded by ferrules 0 between the spar flanges. Fig. 12 shows an edging for the wing, comprising a metal tube with a core of cane, which is inserted between the rib plates F, G and secured by a U-shaped strip O<3> and screws 0<4>. The covering X of the wing is secured by countersunk rivets or screws. In Fig. 15 is shown a joint for connecting a main plane and a central plane, or two parts of a single plane, in which the planes are provided above and below with hinge members S secured to the spars by bolts S<2>; the hinges are not intended to form a pivotal joint. The wing may be attached to the fuselage or to a mast by providing the end of the spar with a yoke T, Fig. 19, which is connected to the machine by a ball-and-socket joint T<2>. Fig. 20 shows a spar for an aileron or elevator, comprising two dished elements U, D<2> fitted with a hinge member V. According to the Provisional Specification, aluminium or aluminium alloy may be used.
Patent GB-1268778-A (GB)
Title: Improvements in and relating to moving-coil meter movements
IPC: G01R5/04
Filed: 1969-04-02
Abstract: 1,268,778. Moving coil meters; indicating apparatus. AGFA-GEVART A. G. April 2, 1969 [April 3, 1968], No. 17190/69. Headings G1J and G1Q. In a moving coil meter, the range movement of the pointer 3 is limited by the ends of resilient strips 15, 16 secured to the body 10 of the meter. The strips are made of paper and may be glued in slots such as 13, 14 on the body of the meter, or clamped between interengaging projections Fig. 2 (not shown).
Patent GB-1013557-A (GB)
Title: Polymerization of butadiene
IPC: C08F136/06
Filed: 1964-04-24
Abstract: <PICT:1013557/C3/1> Polybutadiene is continuously formed by a process which comprises passing 1,3-butadiene, solvent and catalyst to a polymerization zone, cyclically polymerizing said 1,3-butadiene by alternately raising and lowering the mol ratio of said catalyst to said 1,3-butadiene and recovering the resultant polybutadiene from the polymerization effluent.  In Fig. 1 the cycle timer actuates valve 13 to feed catalyst either into the solvent through line 12 or secycle the catalyst through line 15.  The rolvent and monomer are fed into the reactors 1 and 2 at a constant rate thereby causing the mol ratio of catalyst to monomer to fluctuate cyclically.
Patent GB-255090-A (GB)
Title: Improvements in or relating to methods of manufacturing electrodes for electron discharge devices
IPC: H01J9/04
Filed: 1926-07-09
Abstract: 255,090. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). July 13, 1925, [Convention date]. Vacuum tubes.-In the manufacture of oxidecoated cathodes, a core of molybdenum or tantalum is protected against oxidation during heating to fix the coating by carrying out the heating in a vacuum or non-oxidizing atmosphere, such as nitrogen. The coating may consist of the oxides of the alkaline earth metals, or compounds of the elements of the third group or of rare earths, or mixtures of these, for example, mixtures of lanthanum oxide and barium hydroxide, or cerium oxide and barium hydroxide. The surface of a filament may be roughened to obtain firm adhesion of the coating. The electrode may be treated with vapour of hydrocarbons magnesium or the alkali or alkaline earth metals to increase the electron emission.
Patent GB-557204-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22C9/08
Filed: 1942-12-04
Abstract: 557,204. Casting processes. QUALCAST, Ltd., and JOBSON, J. E. V. Dec. 4, 1942, No. 17250. [Class 83 (i)] Moulds.-After pouring metal, having the property of expanding during solidification, into a mould the apertures thereof are sealed, prior to the expansion of the cast metal during solidification, thus forcing the metal into all the interstices of the mould. The sealing may be effected by plugs or other mechanical means or by freezing the molten metal in the gates g, h, e.g. by forming them of flat cross-section g<SP>1</SP>, h<SP>1</SP>.
Patent GB-728758-A (GB)
Title: Improved process for the manufacture of a dyestuff intermediate
Inventor: DOYLE CLIFFORD JAMES
IPC: C07C233/12
Filed: 1952-07-09
Abstract: 2 - Hydroxy - 3 - naphthoic - 21 - naphthylamide is p  prepared by heating 2-naphthylamine-1-sulphonic acid (Tobias acid) or a salt thereof with 2-hydroxy-3-naphthoic acid or a salt thereof and phosphorus trichloride in an inert liquid medium, and in the presence of disodium hydrogen phosphate.  Both the hydroxy-naphthoic and Tobias acids may be used in the form of their alkali-metal salts, these being preformed or formed in situ before addition of the phosphorus trichloride.  The disodium hydrogen phosphate may also be formed in situ in the reaction mixture.  The inert liquid should preferably be an organic liquid boiling above 100 DEG  C. (e.g. xylene) and the reaction is preferably carried out at the boiling point of this liquid.  In an example the sodium salt of 2-hydroxy-3-naphthoic acid (prepared in situ) is heated under reflux with Tobias acid, phosphorus trichloride and disodium hydrogen phosphate in a xylene solvent to form 2-hydroxy-3-naphthoic-21-naphthylamide which is isolated from the reaction mixture by cooling, treatment with sodium carbonate solution and steam distillation, the solid obtained by filtration being washed successively with water, dilute acid and water.  According to the Provisional Specification alkali or alkaline salts including trisodium phosphate, sodium carbonate and caustic soda may be used instead of the disodium hydrogen phosphate.  Specification 700,024 is referred to.
Patent GB-290460-A (GB)
Title: Improvements in or relating to high frequency induction furnaces
IPC: H05B6/24
Filed: 1927-06-29
Abstract: 290,460. Rennerfelt, I. June 29, 1927. Induction furnaces.-A high frequency furnace uses flat spiral coils of internally cooled tubes, power factor correction being obtained by the use of condensers or a synchronous machine. Additional cooling may be obtained by passing compressed air through channels 17 in the furnace walls. A three phase furnace employs coils 7, 8, 9 under the furnace and coils 11, 12, 13 above the roof. Each of the latter comprises two coils arranged close together. A flat coil 14 shaped to the furnace wall may also be provided. The liquid charge 5 is heated by induced currents. A body 6 may be heated by radiation from the charge. If the physical properties of the charge do not permit direct heating by induced currents, heating bodies 15, 16 of nickel chromium alloys carbon, or carborundum may be employed. If the charge is of silver the heating bodies may be made of wrought iron. A modification employs a single flat coil arranged at the bottom of the furnace.
Patent GB-711806-A (GB)
Title: Improvements in and relating to machines for applying coats of liquid to sheets of paper and like materials
Inventor: GRANT IAN
IPC: D21H23/68
Filed: 1951-07-21
Abstract: A machine for applying coats of liquid to sheets of paper and like materials comprises a frame on opposite sides of which are mounted parallel endless chains or their equivalent joined at intervals by bars having on them grippers for the paper or other material, the chains or their equivalent being conducted over and under rollers or cylinders mounted across the frame, one of which applies the liquid, to the paper or like material, a heated dryer being provided through which the sheets, taken from a stack at one end, are passed after coating, and delivered in a stack at the other end.  As shown in Fig. 1, paper sheets are stacked at 11 and fed by a unit 14 on to a table 15, rejected sheets being passed to a receiver 16.  Two endless chains 12, joined by bars 13 having grippers mounted upon them pass around wheels 17 on either side of the machine.  On one of the wheels 17 is a cam 19 operating a gauge 20 for arresting and aligning the front edge of each sheet, which is then gripped by a bar 13 and carried through the machine thereby.  The sheet passes under guide wheels 23 and up to a blanket-covered cylinder 24 which has recesses for receiving the gripper bars, and supports the sheet while varnish is applied thereto by a roller 33, to which varnish is supplied by a roller 31 dipping in a bath 28.  The varnished sheet now passes downward into and through an enclosed channel, the top 36 of which is constituted by a wall of a air trunk 39 through which air is circulated by a fan 40, and heated by heaters 42.  Finally the direction of movement of the chains is reversed by their passing around a roller 43, and the sheet is deposited on a stack 21.  The gripper bars 13 each comprise a rail 46 (Fig. 3) mounted on end plates 47 and 48 which are supported by the chains 12.  A rod 50, on which are mounted spring grippers 51, is supported in brackets 52 on the rail 46, the rod being urged to close the grippers by springs 53. The grippers may be opened by an arm 57 on the rod 56 engaging a fixed stop.  The centre gripper 51 has an electrical contact 54 engaging a complementary <FORM:0711806/III/1> <FORM:0711806/III/2> <FORM:0711806/III/3> contact on the rail 46 and connected to a spring push button 56, and constitutes a detector device.  The push button 56 engages a contact rail fixed to the machine frame, and, if a gripper bar has missed a sheet, a circuit is completed, energizing a solenoid 71 (Fig. 9), which tends to pull the arm 60, to which its armature is connected by a link 70, so that a high point thereon engages a projection 68 on the spring-pressed bearing block 61 of the roller 33.  This action can, however, only take place as the end of the lever 59, which supports the arm 60, is allowed to fall by coming over the low portion on a cam 58 mounted on the shaft of the roller 24; further rotation of the cam 58 causes the roller 33 to be lifted clear of the roller 24, so that varnish is not deposited thereon.
Patent GB-1300425-A (GB)
Title: Improvements in and relating to blank-positioning devices
Inventor: COX JACK E
IPC: B26D1/08
Filed: 1970-04-13
Abstract: 1300425 Feeding blanks GULF & WESTERN INDUSTRIAL PRODUCTS CO 13 April 1970 [15 April 1969] 17382/70 Headings B3Q and B3W A blank-positioning device for use with a machine including a vertically-reciprocable member 16, such as the ram of a punch press or shear, to move a blank 18 fed forwardly through the machine rearwardly against stops 26 comprises a bracket 30 for mounting on ram 16, an arm 46 pivotally mounted on the bracket at 44, a rod assembly 53 vertically slidable in the arm 46, and blank-engaging means such as a vacuum cup 68. The bracket in use is mounted on the ram 16 at such a height that the vacuum cup 68 engages the blank while the ram is still moving downwardly, a cam 62 on the assembly 53 being engageable with the ram 16 to force the assembly with the vacuum cup 68, in engagement with the blank 18, rearwardly. To vary the rearward stroke of the assembly 53 the cam may be replaceable by one of a different profile and/or the stops 26 may be adjustable. The position of the assembly relative to the ram 16 and thus its rearward stroke may also be varied by adjusting a set-screw 98 between the arm 8 and the bracket. A spring 96 biases the vacuum cup towards the ram 16 and a spring 78 biases the assembly 53 downwardly, the pressure exerted by the vacuum cup against a blank being variable by adjusting a nut 82 against which the spring abuts. Blanks are initially fed by a pair of laterally spaced reciprocable bars 20 having feed fingers 22. A hold down 24 clamps the blanks to a feed table 25.
Patent GB-214877-A (GB)
Title: Improvements in perkins tubes, particularly for heaters, condensers and similar apparatus
IPC: F22B1/16
Filed: 1923-07-05
Abstract: 214,877. Haag, J. July 5, 1923. Superheating by steam.-Perkins' tubes for use in heaters, condensers, and like apparatus are of circular cross-section as at 7, where they are heated and at their points of contact with walls 8, 9, 10, and have flat parts 5 where heat is emitted. Specification 197,769, [Class 123 (ii), Steam generators], is referred to.
Patent GB-289284-A (GB)
Title: Improvements in the manufacture of fertilisers
IPC: C05F15/00
Filed: 1927-07-01
Abstract: 289,284. Fluck, R. C., and Theil, A. July 1, 1927. Manures.-Fecal matter from pit or cask systems or sewers is treated with peat or lignite to remove the solid matter and the separated liquid is treated with lime, a salt of iron or like agent which will precipitate nitrogeneous and phosphatic matter as a mud. The fecal matter may be initially heated to drive off ammonia which is recovered as ammonium sulphate. A complete manure is obtained by mixing the solid residue, the mud and the ammonium sulphate. The treatment with peat &c. may consist in repeated filtration therethrough, or peat may be mixed with the fecal matter, the mixture being heated and the solid matter then allowed to settle out or separated centrifugally.
Patent GB-1577283-A (GB)
Title: Pharmaceutical compositions containing acetic acid derivatives
IPC: C07C53/126
Filed: 1978-05-03
Abstract: 1. omega-Dialkylalkanoic acid derivatives corresponding to the general formula :  see diagramm : EP0005422,P14,F3  wherein Y represents a radical NH2 or a radical OM1/2 in which M represents an alkaline earth metal atom and n represents one of the values 0, 1 or 2, with the proviso that when Y represents NH2 , n represents 2.
Patent GB-1099206-A (GB)
Title: Drive chains for conveyors
IPC: B61B10/04
Filed: 1966-04-21
Abstract: 1,099,206. Conveyer drive chains. INVENTIO A.G. April 21, 1966 [April 30, 1965], No. 17586/66. Heading B7L. A drive chain for moving a conveyer carriage, e.g. a shopping basket trolley, down an inclined conveyer section, comprises a housing element 1, Fig. 1, connected by pins 2 to chain links 3; a support member 7 secured to a rod 6 slidable in end walls 1.3, 1.4, of the housing against the urge of springs 8, 9 between the support and end walls; a pusher member 15 pivoted on a pin 12 on plates 10 (11), Fig. 2 (not shown), of the support and urged against an abutment 14 on the support 7 by a spring 19; and a pair of catches 16 also pivoted on the pin 12 and urged against the abutment 14 by springs 21, the catches each having a shank 16.11 and a hook nose 16.12 extending at an acute angle to the shank 16.11. In use the chain, in moving in the direction 24, causes a striker plate 20 of the catch to engage a rod 22.1 of a carriage which is retained on the inclined conveyer section by a known spring-urged start lever (not shown). The catch 16 is thus deflected and the pusher 15 is then brought into engagement with the carriage rod as shown at position 22.2. The moving pusher then causes the rod to trip the start lever whereafter the carriage runs under gravity down the incline so that the rod engages the catch 16 at position 22.3. With this construction the distance between the catch and pusher does not alter during pivoting of the catch and thus may be small and consequently after tripping of the start lever the carriage cannot accelerate very much before engaging the hook 16. Moreover, the springs 8 or 9 absorb shocks during the engagement between the pusher 15 and the carriage rod. The chain is provided with rollers 5 on the pins 2 and side rollers 4 on the housing side walls (7.1), (7.2), which rollers 4, 5 engage in rails (not shown) of U-shape cross-section.
Patent GB-1213843-A (GB)
Title: Improvements in or relating to optical recording of a series of images and a series of sound tracks on a film
IPC: G03D15/00
Filed: 1968-04-11
Abstract: 1,213,843. Optical recording and playback; audio-visual apparatus. SOC. INDUSTRIELLE DES NOUVELLES TECHNIQUES RADIOELECTRIQUES ET DE L'ECTRONIQUE FRANCAISE. 11 April, 1968 [13 April, 1967; 5 April, 1968], No. 17690/68. Heading G5R. A film F carries a series of images a, b, c, each surrounded by a spiral optical sound track I, II, III. During recording (Figs. 3 to 9) a carriage (P) carrying the film F on a pair of spools (4, 5) is rotated while a light beam from a light modulator (B) is moved radially over the film. During playback (Figs. 10 to 16) the film is stationary and a scanning light beam is moved in a spiral path.
Patent GB-185557-A (GB)
Title: Improvements in or relating to shock absorbing devices and resilient supporting means
IPC: B62J1/02
Filed: 1921-06-29
Abstract: 185,557. Turner, A. June 29, 1921. Saddles.-A spring for use in a cycle or like saddle comprises an endless band made as described in Specification 102,754, [Class 108 (iii), Springs &c.], and secured around two grooved thimbles 2, Fig. 2, the part 1<a> intermediate the thimbles being closely bound together. Two or more such springs are bent to a U-shape and their thimbles are fitted upon studs 9. Fig. 4, on bifurcated fittings 10 secured to the underframe 8 of the saddle, the seat 6 being pivoted at 7 to the underframe and supported by rods 14 provided with semicircular feet 13, which rest on the springs. Reference has been directed by the Comptroller to Specifications 13472/87, [Class 80, Mechanism &c.], and 176,083, [Class 108 (iii), Springs &c.].