baber/WOPTO huggingface dataset:
Patent GB-1058664-A (GB)
Title: Gas-liquid contacting column assembly
IPC: B01J19/30
Filed: 1964-02-04
Abstract: 1,058,664. Contacting gases with liquids. H. STAGE. Feb. 4, 1964 [Feb. 9, 1963], No. 4693/64. Heading B1R. A gas/liquid contact column containing packing has the packing surrounded by and subdivided into a number of units by perforated walls which are parallel to the longitudinal axis of the column. The surrounding perforate wall may be in contact with the inside walls of the column or as shown in Figure 2 spaced therefrom by members 4 which have sealing gaskets 5 filling in grooves 6 in the walls of the column. Alternatively the end perforate walls may have extensions which space the surrounding perforate wall from the column wall and the free space there between may be filled with a material such as asbestos. The perforate walls may be of expanded metal.
Patent GB-433313-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated rubber
IPC: C08C19/14
Filed: 1934-02-13
Abstract: Solid chlorinated rubber is produced directly by subjecting finely divided rubber in the absence of solvents simultaneously to an abrading action and to the action of chlorine gas.  Rubber in the form of thin strips or crumb rubber may be subjected to vigorous agitation during chlorination, or the reaction may be performed in an enamelled or lead-lined rotating drum.  Pieces of inert material may be present.  The fine powder of chlorinated rubber may be removed by sieving or air blowing, or, in a continuous process, by the current of chlorine gas.  The current of chlorine may then pass through a separator, a water scrubber, a drier and back to the reaction vessel.
Patent GB-1090182-A (GB)
Title: Polymerization process
Inventor: WALKER JAMES STEWART
IPC: C08G65/22
Filed: 1964-02-05
Abstract: Cross-linked polyethers are prepared by contacting a saturated epoxide having at least one terminal epoxide group and an unsaturated epoxide with a chelated aluminium catalyst in the presence of an organic compound which decomposes on heating to liberate free radicals, at a temperature below the decomposition temperature of said organic compound, and subsequently heating the polymerization reaction mixture to a temperature above the decomposition temperature of the organic compound to cause free radicals to be liberated and to promote cross-linking of the polymerization reaction product.  Small quantities of a plasticizer, a surfactant, or a monomer containing a double bond may also be added. Foamed compositions may be prepared by using a compound which decomposes to give both the free radicals required and a gas, or by using an additional compound which on decomposition yields a gas.  Suitable saturated epoxides are ethylene oxide, propylene oxide and butylene-1,3-oxide.  The specified catalyst is prepared by reacting aluminium triethyl with acetyl acetone and water.  Unsaturated epoxides include allyl glycidyl ether and glycidyl methacrylate.  The compound which decomposes to give free-radicals may be an organic peroxide such as benzoyl peroxide or dicumyl peroxide or, in the production of foamed compositions, a compound such as azoisobutyronitrile or N,N1-dinitro-N,N1-dimethyl terephthalamide.  The plasticizer is exemplified by polypropylene oxide. Suitable surfactants include polyglycol oleate and a silicone oil.  Suitable monomers which may be incorporated into the polymers and foams are methyl methacrylate and styrene.
Patent GB-935491-A (GB)
Title: Improvements in or relating to office or like furniture
IPC: A47B87/00
Filed: 1959-02-11
Abstract: 935,491. Furniture combinations; fixing furniture in rows. CATESBYS CONTRACTS & EXPORT Ltd., and K. TUCKEY. Jan. 21, 1960 [Feb. 11, 1959], No. 4794/59. Classes 52 (2) and 52 (3). A unit 2 can be supported by a desk 5 to extend the working area of the desk, the unit having hook members 3 which engage ribs 4 on the desk. Alternatively, a unit 6 is supported between two desks 5, 7 or triangular comer units 8 are supported by desks 9, 10, 11. The units having in addition to a working surface, drawers, cupboards or shelves.
Patent GB-1030305-A (GB)
Title: Organic polyisocyanates
Inventor: WINDEMUTH ERWIN
IPC: C07C265/14
Filed: 1964-02-05
Abstract: Biuret polyisocyanates are prepared by reacting an organic di- or polyisocyanate with an organic primary monoamine in such proportions that the ratio -NCO to -NH2 is at least 3 and heating the reaction mixture to an elevated temperature while continuously removing the organic monoisocyanate resulting from said reaction as rapidly as it is formed.  The reaction may be completed in one step or with the formation and isolation of intermediate products.ALSO:Biuret polyisocyanates are prepared by reacting an organic di- or polyisocyanate with an organic primary monoamine in such proportions that the ratio -NCO to -NH2 is at least 3 and heating the reaction mixture to an elevated temperature while continuously removing the organic monoisocyanate resulting from said reaction as rapidly as it is formed. The solution of the final product in excess polyisocyanate starting material may be reacted with a polyalkylene glycol (prepared, e.g. from trimethylolpropane and propylene oxide) and the product blown with water to give a semi-rigid foam.  The biuret polyisocyanates may also be reacted with polyesters (prepared, e.g. from phthalic acid and trimethylolpropane) and the product used to form coatings.
Patent GB-470764-A (GB)
Title: Improvements in or relating to the manufacture of purified cellulose from cellulose pulps
IPC: D21C9/08
Filed: 1936-02-18
Abstract: In a process for the manufacture of cellulose suitable for the production of cellulose esters or ethers, viscose, &c., from wood pulp or other cellulosic material produced by the partial delignification of lignocellulosic materials, the cellulosic material is treated in at least two stages at above 100 DEG  C. with an aqueous alkali solution, the concentration of which does not exceed 5 per cent at any time during the treatment, and in at least two stages with a bleaching agent comprising free or combined chlorine in an acid medium, one or more of the bleaching stages being followed directly by a stage of the alkali treatment. Suitable alkalies are sodium hydroxide, or lime or sodium carbonate.  The latter two may be employed with sodium hydroxide. When using lime alone a higher temperature or higher concentration of alkali is preferably employed than when working with caustic alkali.  Particularly useful temperatures are 120--140 DEG  C.  The pressure is advantageously higher, e.g. 2--10 atmospheres higher than that produced by the alkali solution alone at the temperature of the treatment.  Suitable bleaching agents are calcium or sodium hypochlorite solution, acidified with hydrochloric acid or carbon dioxide, or chlorine water or gaseous chlorine.  Bleaching temperature is preferably below 50 DEG  C.  Suitable methods are:--bleaching, followed by two or more boilings with alkali and a final bleach; or alternate treatments with alkali and bleaching agent.  Conditions in the alkali treatments may vary.  Thus the first may be at higher temperature than the second or vice versa. Similarly the successive bleaching operations are usually of decreasing severity.  When the cellulosic material is to be used for organic esters of cellulose it is advantageously pretreated with a lower aliphatic acid, e.g. acetic or formic acid as described in French Specification 565,654, or with the vapours of these acids as described in British Specification 263,938, [Class 2 (ii)].  In an example commercial sulphite pulp is heated for one hour in an autoclave at 120 DEG  C. with 1,5 per cent caustic soda, separated, washed, and re-heated at 120 DEG  C. with 0,25 per cent caustic soda. Both before and after the second treatment the pulp is bleached with acidified bleaching powder solution, the first bleach being with a stronger solution than the second.  In a second example employing a 1 per cent solution of lime, the temperature used was 140 DEG  C.  The Provisional Specification describes generally treatment of pulp, produced by the partial delignification of cellulosic materials, at elevated temperatures with aqueous alkali of not more than 5 per cent.  Bleaching treatments may be with acid or alkaline hypochlorite solutions, the hypochlorite being formed, if desired, in situ, by leading chlorine into a solution of alkali.
Patent GB-285495-A (GB)
Title: Film moving mechanism for photographic cameras
IPC: G03B19/04
Filed: 1928-02-17
Abstract: 285,495. Ansco Photoproducts, Inc., (Assignees of Lowkrantz, G.). Feb. 18, 1927, [Convention date]. Magazine hand cameras for roll films. - A film feeding device of the kind comprising t claw which is slidable on the camera back and is guided by a pad which presses on the film is characterized in that the pressure pad is mounted on the back of the camera and is independent of any film-receiving container. In the form shown, a removable back 7, light-trapped at 10, carries a fixed plate 12 having ways 13 in which slides a plate 14 having ears 15 connected by springs 16 to the plate 12. Pivotally mounted at 21 on the plate 14 is a bifurcated claw-member 24 which is urged towards the film 5 by a leaf spring 26, and carries claws 25 guided by a film pressure pad 31 which engages the film at its edges only, and is mounted on a bowed leaf spring 29 supported by the plate 12. Downward movement of the slide 14 against the action of the springs 16 is produced by a finger-piece 17 working in a slot in the camera back, and' causes the claws 25 to enter perforations in the film and feed it through the gate 6. On release, the slide is returned by the springs 16, the claws, by reason of their shape, move out of the perforations and slide over the film back to their starting point, the film being held stationary against the gate 6 by the pad 31 during this movement.
Patent GB-263344-A (GB)
Title: Improvements in carburetting apparatus
IPC: F02M3/08
Filed: 1926-02-22
Abstract: 263,344. Claudel, C. H. Feb. 22, 1926. Spray carburettors.-In a carburettor provided with a main nozzle 8 having outlet orifices 13, and a slowrunning nozzle 5 opening into the interior of, and coacting with a narrow slot 4 in, the throttle valve C, an intermediate nozzle 14 is provided surrounding the slow-running nozzle 5 and coacting with a narrow aperture 4<1> and an enlarged recess 16 in the valve C. Fuel is supplied to the nozzles through orifices 10, and aerating air which is supplied to the chamber of the main nozzle through orifices 11, 12 may also pass to the intermediate nozzle 14 through apertures 17. When the throttle valve is closed, fuel is supplied by the slow-running nozzle only, the suction in the recess 16 being insufficient to bring the nozzle 14 into action; when, however, the throttle is opened to an extent such that the outlet 15 of the nozzle 14 is situated in the narrow aperture 4<1>, fuel is supplied by both the slow-running and intermediate nozzles. A V- shaped or other gradually enlarged recess may replace the aperture 4<1> and recess 16.
Patent GB-1384464-A (GB)
Title: Photographic material
IPC: G03C1/30
Filed: 1972-02-03
Abstract: 1384464 Gelatin EASTMAN KODAK CO 3 Feb 1972 [4 Feb 1971] 5044/72 Heading C3H [Also in Division G2] A gelatin layer is tempered by a polyol of one of the following formulae incorporated in the gelatin layer or a layer adjacent thereto: n which R is phenyl or substituted phenyl, alkyl (1-8C), substituted alkyl or alkenyl; p is 0 or 1; m is 0, 1 or 2, and n is 1 or 2 provided that m and n are not both 2; R<SP>1</SP> is alkyl (1-80), H 1  an alkali metal atom, or the atoms required to complete an ammonium salt group; D is the atoms required to complete a 5 or 6 membered carbocyclic ring, and taken separately R 2  is H and R 3  is OH, or taken  together they represent = O; Examples of the polyols include 2-(21-hydroxyethylamino) - 2 - (hydroxymethyl) - 1,3- propanediol, 2[bis - (2<SP>1</SP>- hydroxyethyl)amino]- 2 - (hydroxymethyl - 1,3 - propanediol, 2,2,6,6- tetramethylolcyclohexanol, 2,2,5,5 - tetramethylolcyclopentanol, 1,1,3,3 - tetramethylol- 2-decalone and 2,2-dimethylolindanone.
Patent GB-248003-A (GB)
IPC: F41A9/83
Filed: 1924-12-08
Abstract: 248,003. Browning, J. M. Dec. 15, 1923, [Convention date]. Cartridge feed-strips.-A cartridge feed-strip for automatic machine guns comprises a flat plate having a number of open-mouthed seats to receive the rims of the cartridges and means extending into the open mouths for retaining the cartridges in the seats. In the form shown, the strip 1, which is adapted to slide in transverse guides in the feed-box, has open-mouth flanged recesses 3 to receive the rims of the cartridges x, which are retained against downward movement by projections 6 which extend from flat springs 5, 7 .attached to the rear of the strip and pass through slots in the strip. To load the strip, the projections 6 are released by a tool 9, Fig. 6, having inclines 10 which simultaneously engage projections 8 on the springs 5, 7. The upper edge of the strip is provided with notches 12 engaged by the feed mechanism and notches 14 engaged by a stop-pawl.
Patent GB-167518-A (GB)
Title: Improvements in motor vehicles
IPC: B62D61/08
Filed: 1920-06-25
Abstract: 167,518. Blake, F. C. June 25, 1920. Wheel forks and like structures.- One or two combined driving and steering wheels arranged at the front of the vehicle are each mounted in a spring-forked frame and are located wholly at the rear of the vertical steering-pivot, each motor being arranged on the forward side of the steering-pivot or in line therewith. In the construction shown in Fig. 1, the wheel m is carried in a forked frame l connected to the steering-pivot f by jointed links and springs k. The steering-pivot is connected to the framework or body of the vehicle at both its upper and lower extremities.
Patent GB-669501-A (GB)
Title: Improvements in and relating to change speed gears
IPC: F16D23/04
Filed: 1950-03-01
Abstract: 669,501. Clutches. PORSCHE KONSTRUKTIONEN GES. March 1, 1950 [March 5, 1949], No. 5161/50. Addition to 653,328. Class 80 (ii). The synchronising device of the parent Specification for facilitating engagement between dogs 4 on a sliding sleeve 3 and dogs 6 on gears 5 is modified by centering the friction synchronising rings 8, 9 when not engaging by means of rings 28, 31 screwed into the sleeve 3 and engaging shoulders 16, 17 on the rings 8, 9 respectively. The rings 8, 9 are further located circumferentially by lugs 26, 27 integral with the sleeve 3 engaging the slotted ends of the rings.
Patent GB-1453101-A (GB)
Title: Filter
IPC: B01D33/00
Filed: 1974-02-05
Abstract: 1453101 Moving band-drum press filter M OZAWA 5 Feb 1974 [7 Feb 1973 (2)] 05222/74 Heading B1D Material M is squeezed dry between a rotary drum 1 covered with filter medium 3 and an endless band 9 which is also covered with or made of filter medium 14, the band being pressed towards the drum by a group of rollers 18 mounted on a common spring-loaded frame 19, 20 which also supports curved guides 22 in which axially extended edges of the band 9 slide. Filtrate flows partly into trough 24 and partly into the drum and out of its ends. Filter cake is removed from the drum by a plurality of endless ropes 7 which are entrained round the drum and round a roller 8. The drum carries rubber rings 6 which engage recesses 16 in the band 9 to define the pressing region. As shown the band 9 comprises separate perforate metal plates 15 carried between endless chains 10 (Figs. 4, 5 not shown). The ends of plates 15 may be separable from the central perforate sections (Figs. 6, 7 not shown) to enable bands of various widths to be made. Band 9 suports a separate band 14 of filter medium, which may be cloth, sponge, metal net, rubber or plastics. Alternatively (Figs. 8, 9, not shown) the load 9 may consist of a belt of perforate rubber or mesh secured between pairs of recessed edge members (15a) which connect it to chains 10, no separate filter medium band being used. In Figs. 10 to 12 (not shown) one band is used in conjunction with three separate drums, material being pressed by respective sets of rollers between the band and each drum in turn. The pressure increases from one drum to the next.
Patent GB-892531-A (GB)
Title: Improvements in or relating to the detection or analysis of gases
Inventor: BAKER ALAN RICHARD
IPC: G01N27/16
Filed: 1958-02-18
Abstract: <PICT:0892531/III/1> <PICT:0892531/III/2> <PICT:0892531/III/3> In apparatus for analyzing gases or for detecting combustible gases in air, a detecting element and a compensating element, comprising filaments which are heated by electric current, are housed in chambers in gaseous communication with a supply of gas to be tested but so disposed that the gas reaches the elements by convection currents after diffusing through a stagnant layer of gas.  As shown, Fig. 1, test gas is drawn into a tube 16, cast or mounted in a resin block 7, and lined inside with a metal gauze cylinder and covered at each end with a gauze disc.  Two cylindrical chambers 27, 28 disposed radially to, and along, the tube 16 contain a catalytically active detecting filament 2 and a catalytically inactive compensating filament 3 respectively, the test gas diffusing through the gauze cylinder and across layers of stagnant gas in the mouths of chambers 27, 28, and then being brought by convection currents to the surfaces of the filaments. The filaments constitute two arms of a bridge circuit, Fig. 6, each of the other two arms of which comprises a portion of a potentionmeter resistance 46 shunted by a resistor 50 or 51.  The bridge is energized by a battery 8 through a microswitch 49. The meter 5 is mounted in a flexible jacket 6, Fig. 1, which, with the resin block 7, is housed in a metal case 13 lined with insulating material.  The filaments 2, 3, are preferably as described in Specification 892,530, being made of metal in the platinum group and embedded within a pellet of refractory material, a catalyst coating being formed on the outer surface of the detecting pellet. Alternatively the filaments may be directly exposed to the gas, the compensating filament having been treated with a silicone fluid or coated or alloyed with a metal such as gold to prevent oxidation. Modifications.  The chambers may communicate through a gauze obturator with the test gas in, e.g. a room or tunnel.  Both filaments 2, 3, may be located in the same chamber, compensating filament 3 being located further from the chamber mouth.  To compare a test gas with a reference gas, the filaments are housed in separate chambers communicating with separate tubes.  In some cases both filaments are catalytically inactive.  Fig. 5 shows an alternative bridge circuit, suitable for stationary apparatus, in which the wiper of the potentiometer 46 is connected through a fixed resistance 47 to the mid-point of the D.C. source 8.
Patent GB-688352-A (GB)
Title: Liquid dispensing containers
IPC: B65D47/42
Filed: 1951-03-05
Abstract: <PICT:0688352/III/1> A reservoir moistening pad, wherein the liquid reservoir has resilient side walls and is connected by a tube to an external pad, includes a detachable unit comprising a pan, containing the pad, secured to the top of the tube and having a collar on its bottom to co-operate with a neck on the reservoir.  On release of hand pressure from the reservoir side walls the flooded pad is drained by suction and retains only a capillary-held charge.  As shown a dispensing unit comprising a pan 29 containing a felt or other fibrous pad 32 and having a dependent pipe 28 is screwed on to the threaded neck 26 of a light gauge metal or plastic can whose larger side walls 21 can be squeezed in to force the liquid 19 up the pipe to the pad.  The pipe 28 may contain a wick, and may have a bleed hole 33 near its top to prevent flooding by changes of atmospheric temperature or pressure.  A plain cap 31 is provided, also a screw cap to fit the neck 26 in place of the detachable unit for shipment.
Patent GB-1426891-A (GB)
Title: Device for the electrical connection of a flexible strip conductor with a platelike terminal of an electrical component
IPC: H01R13/432
Filed: 1973-02-02
Abstract: 1426891 Two part couplings CAVISCAVETTI ISOLATI SpA 2 Feb 1973 [18 March 1972] 5227/73 Heading H2E An electrical connector for connection of a tape cable to a blade terminal of an electrical component comprises a rectangular block of plastics material 1, having therein a transverse opening 2, in which are received in a first direction tape cable 7 and terminal 8, which are electrically interconnected by approximately V-shaped resilient member 5. Tape cable 7 is resiliently urged against one wall of opening 2 by a 1st arm 5c, of member 5 which has a second arm 5b abutting the other wall, such that the blade terminal 5 is received between spaced portions 5b<SP>1</SP> thereof. The second arm 5b further includes a locking element which may comprise tang 4 engaging against an abutment, e.g. projection 1a, to prevent withdrawal of member 5. A second abutment 1b may be provided to prevent movement of the member 5 out of opening 2 in the said 1st direction. In the embodiment of Fig. 2 (not shown) the blade terminal is held wholly within the portions (5b<SP>1</SP>) against one contiguous surface of member (5), the 1st arm (5c) being bent fully back to support and resiliently contact the tape cable on the same surface of the member (5).
Patent GB-1315647-A (GB)
Title: Deposition from the vapour phase in vacuo of layers
IPC: C23C14/54
Filed: 1972-02-04
Abstract: 1315647 Vapour deposition apparatus BALZERS PATENT-UND BETEILIGUNGS A G 4 Feb 1972 [10 Feb 1971] 5293/72 Heading C7F The thickness of a vapour deposited coating is controlled by mounting in the vapour deposition chamber 1 a casing 6 having quartz oscillators 8 on a turntable 7 and a rotatable shutter 12 having opening of various sizes between the oscillators and the vapour source. Alternatively a continuously adjustable shutter may be used. By reducing the size of the aperture during deposition, it is stated that a linear calibration graph is obtained.
Patent GB-547420-A (GB)
Title: Improvements in removing aldehyde from mixtures such as essential oils
IPC: C07C45/85
Filed: 1941-04-26
Abstract: 547,420. Terpenic aldehydes. STAFFORD ALLEN & SONS, Ltd., and WEST, T. F. April 26, 1941, No. 5417. [Class 2 (iii)] Terpenic aldehydes are separated from mixtures containing non-carbonyl compounds such as alcohols or esters .by reacting the terpenic aldehyde with an amine and removing the unreacted constituents of the mixture, the aldehyde being then recovered if desired by distillation with dilute acid. Examples describe the treatment of Java citronella oil with monoethanolamine, ethylene diamine, 2-amino-2- methyl propanol, morpholine and diethanolamine respectively, and of a fraction of Ceylon citronella oil with cyclohexylamine. The water liberated in the condensation, and the geraniol (in the case of the Java oil) or the terpenes (in the case of the fraction of Ceylon oil) are removed by distillation. Specification 538,523 is referred to.