baber/WOPTO huggingface dataset:
Patent GB-325931-A (GB)
Title: Improvements in or relating to folding beds
IPC: A47C17/48
Filed: 1928-12-31
Abstract: 325,931. Abela, E. Dec. 31, 1928. Folding beadsteads.-In a folding bedstead of the kind comprising members 7, 9 hinged together at 8, supporting uprights 13 are provided carrying springs 16 which help to fold the frame as the bedstead is being closed. The spring 16 acts upon a rod 15 connected to the hinge 8, while hinged arms 14 may be provided, carrying a slidable collar C. The rod 15 may be locked in position by a catch 17. The foot 11 of the bedstead may form the front of a containing cabinet or chest having hinged side members 2 and a hinged top flap 3. Hinged members 5 may be turned outwardly to serve as bed-tables.
Patent GB-1149793-A (GB)
Title: Production of 1,3-diene polymers in aqueous emulsion
Inventor: NAARMANN HERBERT
IPC: C08F36/04
Filed: 1966-08-30
Abstract: 1,149,793. Catalysts for diene polymerization. BADISCHE ANILIN- & SODA-FABRIK A.G. 30 Aug., 1966 [31 Aug., 1965], No. 38591/66. Heading C3P. Conjugated dienes are polymerized in aqueous emulsion using as catalyst a cation exchanger having combined therewith a transition metal as ions. Cocatalysts such as organic halogen compounds and ethylenically unsaturated cycloaliphatic compounds may be added to the emulsion. The process is also applicable to the production of copolymers e.g. with styrene.
Patent GB-1016160-A (GB)
Title: Expansible metallic seal element
IPC: E21B33/127
Filed: 1964-09-22
Abstract: 1,016,160. Wells, &c. OTIS ENGINEERING CORPORATION. Sept. 22, 1964 [Sept. 27, 1963], No. 38676/64. Heading E1F. [Also in Divisions B5, F1 and F2] An annular seal 50 comprises an annular resilient body 65, and a ring embedded about the body and formed of rigid segments 66a, 66b pivoted to each other to permit radial contraction and expansion of the seal. The seal may be embodied in well tools pumpable through tubing, in well swabs and paraffin scrapers, or in pistons for pumps or hydarulic rams. The seal is mounted in a recess 51 in the well tool 20, higher pressure of fluid at one end of the tool causing fluid to pass through that end of the recess to enter a chamber 98, and expand the seal against the tubing so that the tool may be forced through the tubing under fluid pressure. The tool is connected to a similar tool 20a and the tool assembly is connected at 36 to a tool such as a plug. Frangible discs 40 may be ruptured by differential pressure to permit retrieval of the assembly by fishing should it become locked in the tubing. The segments may be connected by links. The swab or paraffin scraper comprises a tool in which the disc is replaced by a ball valve and the lip 96 of the resilient body is omitted.
Patent GB-1184244-A (GB)
Title: A Method of Preparing Pyridine and Substituted Pyridines
Inventor: BELL WILLIAM HAMILTON
IPC: C07D213/06
Filed: 1967-08-23
Abstract: 1,184,244. Pyridines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 Oct., 1968 [23 Aug., 1967], No. 38870/67. Heading C2C. Pyridines and 2-hydrocarbyl-substituted pyridines, e.g. α-picoline, are prepared by heating an N-alkyl pyrrole (or a tertiary amine precursor thereof) with iodine in the vapour phase at a temperature in the range 300-800‹ C. As a modification of the process, a 2-alkyl pyrrole may be used as starting material. The reaction is preferably carried out in the presence of an inorganic oxide, e.g. an oxide of calcium, nickel, aluminium or silicon. In the examples: (a) N-methyl pyrrole is converted to pyridine; (b) N-methyldiethylamine is converted to pyridine and trace amounts of α- and #-picoline and (c) triethylamine is converted to α-picoline and pyridine.
Patent GB-1121202-A (GB)
Title: Improved weather resistant rubbery composition
IPC: C08L21/00
Filed: 1966-08-31
Abstract: A vulcanizable rubber composition comprises rubber and a wax which has a refractive index between 1.423 and 1.429 and a carbon atom distribution within the "A" limits set forth in Table II of the Specification.
Patent GB-337671-A (GB)
Title: An improved method for the destructive hydrogenation of carbonaceous materials
Filed: 1929-12-20
Abstract: 337,671. Standard Oil Development Co., (Assignees of Jennings, J. M.). Dec. 21, 1928, [Convention date]. Hydrogenation, destructive.-In the destructive hydrogenation of heavy fluid asphalt-containing materials, such as crude oils, tars, cracked residues or suspensions of coal in oils by means of solid catalysts immune to sulphur poisoning, such as chromium or molybdenum oxides, coking is prevented by keeping the ratio of asphalt to catalyst in the material treated below a predetermined value which may be 1.5 but preferably is 0.5. The temperature employed is between 800' and 970‹ F. and the pressure above 25 atmospheres in an example 850‹ F. and 3,000 pounds per square inch are employed. The ratio between asphalt and catalyst is determined at intervals and if above the desired limit, fresh catalyst is placed in a closed vessel through which the flow of fresh material to be treated is diverted. Heating may be effected electrically but preferably part of the material undergoing treatment is continuously withdrawn, passed through a heating device and returned; vapourous products are continuously withdrawn. In the apparatus shown, the material is treated in a heat insulated drum 1, part of the charge being withdrawn through a pipe 3 and forced by a pump 4 through a furnace heated coil 5 and back through a pipe 7 into the drum 1. Hydrogen, or a gas rich in hydrogen, passes into the drum 1 from a branch 10 of a supply pipe 8 or through a branch 9 into the coil 5. Gas and vapours pass off from the drum 1 by a pipe 11 through heat exchangers 12, 13 to a condenser 14 and a separation drum 15 from which the condensate is conveyed by a pipe 16 to storage or to stills for removing low boiling constituents, the heavier oils being returned to the drum 1. Gas from the separator 15 is either removed by a pipe 30 or passes by a pipe 17 to a tower 18 where it is washed to remove gaseous or low boiling hydrocarbons by oil fed by a pump 20 through a pipe 21. Sulphuretted hydrogen is removed from the gas by an aqueous sodium hydrate or carbonate solution in a tower 19, the purified gas being returned by a pump 27 to the preheater 12 and passing by a pipe 28 to the feed pipe 8. Fresh hydrogen may be supplied by a pipe 29, and fresh oil is forced by a pump 32 through a pipe 31 into the preheater 13 and thence by pipes 33, 34, 37 to the pipe 3. New catalyst is supplied from a drum 36 which is connected by pipes 39, 37 to the pipe 3 and in its upper part by a valved pipe 35<1> to a valved sampling pipe 35 connected to the pipe 3. To prevent accumulation of ash in the system, the recirculated material may be withdrawn by pipes 35<1>, 37<1> and drum 36 or by suitable pipes not shown.
Patent GB-902072-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02D41/30
Filed: 1958-12-04
Abstract: 902,072. Electric control systems. BOSCH G.m.b.H., ROBERT. Dec. 4, 1958 [Dec. 7, 1957], No. 39078/58. Class 40 (1). [Also in Groups XXVII and XL (c)] The fuel injection valve of an I.C. engine is opened during the unstable state of a monostable transistor flip-flop circuit which is changed over once per revolution for each cylinder by a cam driven by the engine shaft, and returns to its stable state after a time period determined by the position of the throttle lever, the speed of the engine, and the temperature and pressure of the air. As shown (Fig. 1), the valve cone 35 of a fuel injection valve 33 is raised to allow fuel to be injected into the intake pipe 30 of an I.C. engine 10 when coil 34 is energized by the output of an amplifier 28, which occurs when normally conducting transistor T2 is cut off by transistor T1 conducting after switch 39 has been closed by cam 38 driven by the motor shaft 11. The duration of the cut-off is determined partly by the discharge time of capacitor 58 through its shunt resistors 59, 60, resistor 59 being sensitive to atmospheric temperature and pressure, and partly by the collector voltage of transistor T1, controlled by the regulator unit 41, which comprises a 1000 c.p.s. generator 70 whose rectfied output is fed to the collector of transistor T1 through a fixed coil 72 and a rotatable coil 71 giving variable coupling. The motor shaft 11 drives a cylindrical permanent magnet 74 located inside a metal cup 75 to an extent determined by the throttle lever 82. Thus, the drag on the cup 75 is controlled by the throttle lever 82, which also controls the engine speed, and the cup 75 rotates together with coil 71 against a control spring 84, varying the proportion of the output of generator 70 fed to the collector of transistor T1 after rectification at 76.
Patent GB-992474-A (GB)
Title: Methods of and plant for desulphurising light to medium mineral oils
IPC: C10G25/05
Filed: 1963-10-07
Abstract: Light to medium hydrocarbon oils are desulphurized by passing them as vapour through a molecular sieve, the sieve is then treated with a free oxygen-containing gas to oxidize the sulphur compounds e.g. mercaptans, thiophene, CS2; and simultaneously a flushing liquid is passed over or through the sieve to remove the oxidation products. In a specific embodiment, the Figure, a hydrocarbon feedstock is fractionally distilled and also desulphurized using a molecular sieve which is simultaneously regenerated. Vaporized feedstock enters column 1 at 4 and is split into two fractions.  The vapour passing through the molecular sieves 3 is desulphurized and condensed at 6. The condensate is split at line 8 and part of the liquid is used to wash out the oxidized sulphur compounds whilst the remainder is cooled 9 and <PICT:0992474/C4-C5/1> removed at 10. Air is introduced by pipe 11 and ammonia, if used, may be added at either pipes 12 or 13. The air ascends through inert packing 2 and oxidizes sulphur compounds at 3.  The sump fraction flows out through cooler 15. Modifications of the apparatus may be made by having parts 2 and 3 filled with sieves or mixing an inert packing with the sieves in part 3. The flushing liquid may be a hydrocarbon fraction having a boiling range partially or totally above the treated feedstock. Alternatively, the flushing liquid may be an organic liquid of low or zero miscibility with the feedstock e.g. polyvalent anhydrous alcohols such as glycol.  The volume of free oxygen required to sulphurize the feedstock may be 0.1 to 1% by vol. of the feedstock vapour whilst ammonia, if used, is 10% by vol. of oxygen present. Flue gas may be used as the oxidizing gas in the place of air. If CS2 is present then NH3 may be used in the oxygen stream. An alternative embodiment using two beds operated at different temperatures for regeneration and absorption is also disclosed. The effluent from the process may be used in a continuous catalytic process for making fuel gas.  The sieve bed is preferably operated at a temperature of 75% the boiling range. In two examples petroleum fractions of boiling ranges 40-120 DEG  C. and 190-360 DEG  C. are treated.
Patent GB-1276094-A (GB)
Title: Hot tops for ingot moulds
Inventor: COOLEY KENTON PARKES
IPC: B22C1/00
Filed: 1968-08-16
Abstract: 1276094 Ingot moulds FOSECO TRADING AG 8 Aug 1969 [16 Aug 1968] 39405/68 Heading B3F [Also in Division C3] A one-piece hot top lining 2 of integral construction has an outwardly tapering shoulder 4 and is made of a flexible heat insulating material. The shoulder 4 enables a cover 5 to be placed upon an ingot mould 1. The shoulder at 6 also covers the ingot mould top to protect it from molten metal splashes. The lining may also be used with a head box (not shown) when it covers the bottom edge of the head box to replace the usual metallic wiper ring. The composition of the hot top is (by weight): Aluminosilicate fibre .. 45% Diatomaceous earth.. .. 25% Paper pulp .. .. .. 15% Amosite asbestos .. .. 15% which is used as a fibrous mat. Before use the mat is impregnated with 4 times its own weight of SiO 2  sol. to render it flexible.
Patent GB-870552-A (GB)
Title: Braking system for rolling stock
Inventor: BUTLER HENRY JAMES
IPC: B60T8/18
Filed: 1956-12-29
Abstract: 870,552. Railway vehicle brakes. DUNLOP RUBBER CO. Ltd. Dec. 23, 1957 [Dec, 29, 1956], No. 39569/56. Class 103 (1). A braking system for a railway vehicle comprises a brake to decelerate a wheel, brake applying means under the control of an operator, including a bell-crank lever 15 pivotably secured intermediate its end to a part of the vehicle frame by pin 16, one end of the lever 15 supporting the frame and having associated therewith one end of a leaf-type spring 10, the other end of the lever being associated with the brake applying means whereby an actuation thereof beyond a predetermined value angularly moves the bell-crank lever to separate the frame and the end of the lever adjacent thereto, the braking effected thereafter being varied in accordance with the weight of the vehicle frame carried by the spring 10. The vacuum cylinder 1 having its piston 3 linked through rod 4, levers and rods 6, 5, 6a, 25, 26, 22, 27, 28a, 29 and 32 to a floating lever 35 having mounted thereon a monitor brake shoe 36 which is engaged with a wheel rim 37. When the piston 3 is operated, the monitor brake shoe is pressed against the wheel rim and the frictional force therein causes, according to the direction of wheel rotation, the floating lever 35 to be moved one way or the other to operate through triangularly-shaped plates 60, a rod 62 which pivots levers 64 so as to cause by thrust through pins 85 in recesses 82, the engagement of the main friction pads 54 with the sides of the wheels. Specification 868,965 is referred to.
Patent GB-1354554-A (GB)
Title: 2-substituted benzimidazoles
Filed: 1971-08-24
Abstract: 1354554 2-Substituted benzimidazoles A H ROBINS CO Inc 24 Aug 1971 [31 Aug 1970] 39662/71 Heading C2C Novel compounds of the Formula I wherein R is C 1-8  alkyl, phenyl, phenoxy- C 1-8  alkyl, C 1-8  alkoxy-phenoxy-C 1-8  alkyl, or 1,4 - benzodioxan - 2 - yl - methyl; and n is 1 or 2 and salts thereof may be prepared by (a) hydrolysing cyano to carboxylic acid in a compound II and condensing the product with o-phenylene diamine or (b) condensing a carboxylic acid IV with o-phenylene diamine to give an intermediate V and alkylating the product with RX where X is halogen or dimethylamino.  Pharmaceutical compositions of I show analgetic activity when administered orally or parenterally with the usual excipients.
Patent GB-1255865-A (GB)
Title: Units for heating the intake air of an internal combustion engine and a method of operating an engine with such a unit
Inventor: MCWADE DUNCAN RODERICK
IPC: F02M1/00
Filed: 1969-08-08
Abstract: 1,255,865. Air heaters. D. R. McWADE. 8 Aug., 1969 [20 Aug., 1968; 12 March, 1969]; No. 39725/69. Heading H5H. [Also in Division F1] A unit for heating the intake air of an I.C. engine comprises an electric heating element 1 wound on a rod insulator 2 which is supported centrally in a tube 16 by a pair of apertured ceramic insulator rings 3. The tube 16 is lined with a thermally insulating sleeve 15 and metal gauze filters 18 are provided at the inlet and outlet of the unit. In operation the unit may heat the air flowing therethrough to about 500 C.
Patent GB-1527379-A (GB)
Title: Data display devices
IPC: G06F11/16
Filed: 1975-09-29
Abstract: 1527379 Visual data display systems VDO ADOLF SCHINDLING AG 29 Sept 1975 [3 Oct 1974 13 Dec 1974] 39827/75 Heading H4T A data display system comprises at least one (as shown, three) visual display unit having an image screen, 4, 5, 6, at least two (as shown, three) symbol generators 1, 2, 3 generating the same data for the visual display unit(s), and switching means 7, 8, 9 for successive momentary switching of the individual symbol generators to the visual display unit(s). The switching frequency is less than 10 Hz, preferably 0À5 Hz. As shown, each symbol generator is switched in turn to a different display unit. Each symbol generator may also generate an identifying mark 11, 12, 13, e.g. of different geometrical shapes or appearing in different locations on the image screens. In use, faults in the system are made apparent to a viewer by flickering of the image or disturbance of the periodicity of appearance of the marks 11, 12, 13; manual switching out of each symbol generator in turn will reveal the faulty one.
Patent GB-1087798-A (GB)
Title: Water jet propulsion apparatus
IPC: F04D3/00
Filed: 1964-12-30
Abstract: 1,087,798. Marine Jet-propulsion apparatus. TAMCO Ltd. Dec. 30, 1964 [Feb. 14, 1964], No. 39837/66. Divided out of 1,087,797. Heading B7V. The subject-matter of this Specification is substantially the same as that described in the parent Specification, but the claims mainly concern jet-propulsion apparatus comprising means for rotating the nozzle so as to vary the direction of the jet and effect steering of the watercraft.
Patent GB-832438-A (GB)
Title: Process for producing silicon-iron alloy sheets
IPC: H01F1/147
Filed: 1957-12-23
Abstract: Silicon-Iron alloys have the following compositions:  .Si%.C%.Ti%.S% .3.25.0.035.0.03.0.026 .3.25.0.03.0.05.0.018 .3.25.0.013.0.05.0.017 .3.50.0.036.0.043.0.028 .3.10.0.033.0.047.0.030 .3.47.0.033.0.026.0.023 .3.10.0.029.0.038.0.040  The above alloys after hot and cold rolling into sheet with or without an intermediate anneal, are decarburized by heating for five minutes at 800 DEG C. in wet hydrogen, followed by heating in a retort in a furnace with dry hydrogen (-90 DEG  dewpoint) passing through the retort as the temperature is increased at 100 DEG C. per hour to 1200 DEG C. holding this temperature for eight hours, cooling at about 100 DEG C. per hour to 600 DEG C, and furnace cooling to about 300 DEG C at which point the retort is removed from the furnace.
Patent GB-993184-A (GB)
Title: Method and means for filtering the solvent used in chemical cleaning machines
IPC: D06F43/08
Filed: 1962-10-22
Abstract: 993,184. Filters; filtering systems. M. BOHLER, and F. WEBER, [trading as BOHLER & WEBER KOMM.-GES.]. Oct. 22, 1962 [Oct. 27, 1961], No. 39940/62. Heading B1D. In a process for filtering solvent in chemical cleaning machines, filter powder is added from pin trap 2, Fig. 2, to solvent from cleaning drum 1, in a single quantity sufficient for filtering several charges of solvent to filter casing 6. The filter powder is floated afresh on to filter elements in 6 at the start of each charge, and the accumulated cake is removed therefrom, by means operable from outside the casing, at the end of each charging operation without removal from the filter casing. Solvent, moved by pump 4, may be recycled to the filter casing via pipes 7 and 8. A preferred filter apparatus comprises a casing having conical bottom 12, Fig. 1, and a plate 13 with filter elements 15 connected thereto under tension. A domed cover 14 forms hollow space 20 for filtered solvent, discharging through pipe 21. Solvent enters pipe 16, which has one outlet 18 at the end of riser pipe 17, and another outlet 19 directed downwardly in such a manner that the solvent may impinge against the conical base of the casing. Preferably, outlet 19 is is placed off-centre and skew of the longitudinal axis of the casing. Sedimented filter powder is thus swirled upwardly, and light particles, e.g. fluff, are swirled downwardly, so that an even deposit on the filter elements is obtained. Outlets 18 and 19 may be provided with nozzles to subdivide the flow. Filter elements 15 are coiled springs. Filter cake is removed from the elements by means of pusher rods 22, extending inside the elements. When the rods 22 connected by yoke 23 are pushed downwards by actuator 25, the apertures between the coils of the springs are enlarged, causing the cake to fall away to the bottom of the casing. Alternatively, compressed air or back-flushing may be used to remove the cake. Sludge is removed, e.g. at the end of each day's working, by outlet 26.
Patent GB-902260-A (GB)
Title: Illuminated indicator means for instruments
IPC: G01D11/28
Filed: 1958-12-11
Abstract: 902,260. Indicating-apparatus. BLACKWELL, D. J., and ZAWACKI, E. F. Dec. 11, 1958, No. 39984/58. Class 106 (4). In indicating - apparatus having a source of light 27 behind a dial plate 20 directly illuminating indicia and graduation marks therein from the rear, a light-conducting member 56 passes through a central hole in the dial 20 with sufficient clearance for an arm 47 to turn in the annular gap and the member 56 directs light forward on to a surface 61 of a pointer 46 carried by the arm 47, the surface 61 being at an angle to both axis and radius so that light is reflected through the pointer 46 to illuminate its tip 62. In the sealed aircratf instrument shown, the plate 20 is made of a translucent plastic, the marks thereon are of a white translucent substance and the rest of the surface is by contrast made opaque or slightly translucent to provide background illumination. The lamps 27 or the plate 20 may be coloured, e.g. red, so that the marks appear red when lit from behind and white by daylight. Minute lamps of very small mass are used, supported by their terminal wires connected to bus-rings of highly reflecting material, e.g. chrome plated or silver. The pointer 46 and light-conducting member 56 are of clear plastic, the latter being formed as a lens 58 at the front to concentrate light from a lamp 50 on to the pointer, which is coated white on its front surface. The lamp 50 or the member 56 may be coloured or a colour filter 64 may colour the illumination. Light shields in the form of an opaque disc 66 and opaque cylinders 68, 70 are provided. The lamp 50 may be supplemented by a further lamp offset radially therefrom and provided with a radially disposed light-conducting cylinder to direct light on to a part of the rear surface of the member 56 which is angularly offset to reflect light forward, while the remaining part receives light direct from the lamp 50 and passes it forward. Alternatively, the lamp 50 may be eliminated by using a diametrically opposed pair of lamps 27 and making the rear part of the member 56 of square cross-section with two angularly offset rear parts to deflect both sets of radial rays axially. In forming the indicia, Fig. 7, the plate 20 may be coated with a nearly opaque substance over the area 25 leaving the shapes 90 defined thereby and these shapes may be covered with white translucent material overlapping the area 25 to the larger outline 92 so that the marks appear white and wide by daylight, red and fine-drawn by night.
Patent GB-1389416-A (GB)
Title: Electrical connectors
IPC: H01R27/02
Filed: 1972-08-29
Abstract: 1389416 Two-part couplings E F JOHNSON CO 29 Aug 1972 40065/72 Heading H2E A wire 30 extends along a groove 15 and its end projects through a hole 25 in the middle of the contact 20 and is clamped between the contact 20 and the resilient body 13. The contact 20 fits in a tapered bore 14 and comprises a pin 21 at one end and the other end a socket, having a spring portion 26, which receives the pin of a similar connector (Fig. 5, not shown). The contact 20 is snapped into the body, a shoulder 24 holding it in place. The head 23 of the contact 20 is a tight fit in the upper end of the bore 14 and clamps the wire 30.