baber/WOPTO huggingface dataset:
Patent GB-1431920-A (GB)
Title: Sammying of hides
IPC: C14B1/44
Filed: 1973-08-20
Abstract: 1431920 Sammying hides STROJOSVIT NARODNI PODNIK 20 Aug 1973 39258/73 Heading C6C Apparatus for sammying hides wherein a first sammying cylinder 1 carrying on its surface a first sammying band 7 and mounted for rotation about a first axis in a first direction, and a second sammying cylinder 2 carrying on its surface a second sammying band 8 and mounted for rotation about a second axis in a second direction opposite to the first direction, are urged towards each other so as to form a nip therebetween, a hide input conveyer separate from the sammying bands is arranged to support hides thereon and to move at a speed less than the common circumferential speed of the cylinders so as to feed hides close to the nip, and the first sammying band has a top run extending in the direction of its travel away from the nip so as to act as a dishcarge conveyer for hides from the apparatus. At least the first sammying band may be an endless felt band passing over and tensioned by a pulley whose axis is parallel to the axis of the sammying cylinder carrying it and extends in a generally horizontal direction. Preferably means are provided for keeping the cylinders apart, so as to prevent damage to the sammying bands when no hides are passed therebetween. A moistening and washing unit 19, 20 for a sammying band may be provided between a cylinder and the or a tensioning pulley associated with the sammying band carried by the said cylinder. The input conveyer may include or be defined by a string or filament conveyer 12 arranged to pass over at least a first pulley 13 in close proximity to the nip and a second pulley 14 remote therefrom, the second pulley being of a diameter which is small relative to that of the first pulley and of the cylinders so as to provide close juxtaposition of the input conveyer to the nip.
Patent GB-898261-A (GB)
Title: Improvements relating to the preparation of alpha-olefin copolymers
IPC: C08F210/00
Filed: 1958-12-05
Abstract: Mixtures of alpha-olefins (not including ethylene) with each other and/or with ethylene are polymerized at +30 DEG  to -100 DEG C., keeping the monomers in the liquid state, and using a catalyst formed from an organo-metallic compound of a metal of Group I, II or III with a hydrocarbon-soluble compound of a transition metal of Group IV, V or VI.  Specified copolymers are ethylene-propylene, ethylenebutene and ethylene-propylene-butene terpolymer.  The process preferably takes place in the absence of solvents although small amounts may be present.  Specified catalyst components are trialkyl aluminium, dialkyl aluminium halides and dialkyl aluminium hydrides, titanium tetrachloride and vanadium tetrachloride.  Specifications 856,733, 856,736 and 856,737 are referred to.
Patent GB-796480-A (GB)
Title: Recovery of crystallizable hydrocarbons
IPC: B01D35/22
Filed: 1956-12-27
Abstract: In a method for separating a crystallizable hydrocarbon from a mixture thereof with other hydrocarbons boiling in the range from 150 DEG  F. to 500 DEG  F. in which the crystallizable hydrocarbon is at least 70 per cent by weight of the mixture, the mixture is cooled to form a first crystalline slurry which is maintained at a constant temperature, a first filtrate is separated from the first slurry and a second slurry formed from the first filtrate, crystallizable hydrocarbon is separated from the second slurry and is returned to the first or second slurry, and purified hydrocarbon is recovered from the first slurry.  In one embodiment (Fig. 1) a feed containing cyclohexane is fed by a line 11 to a heat exchanger 12 where it is cooled and then to a holding tank 14, where the slurry is kept at a constant temperature by recycling through a heat exchanger 17.  The first slurry in tank 14 is passed to a centrifuge 19 by a line 15, and filtrate is sent by a line 20 to a <PICT:0796480/III/1> second holding tank 22 maintained at a lower temperature by recycling slurry formed therein through a heat exchanger 25.  The second slurry in tank 22 is removed by a line 23 and a part passed through a line filter 28, the filtrate being discharged by a line 29 passing through heat exchanger 12, and the slurry returned by a line 30 to tank 22. Another part of the slurry in line 23 is sent to tank 14.  The crystalline cake in centrifuge 19 is sent by a line 21 to a third holding tank 31 where it is maintained at a temperature higher than that in tanks 14 and 22 by recycling through a heat exchanger 34. The third slurry in tank 31 is sent by a line 32 to a centrifuge 36, from which purified crystallized cyclohexane is removed as product by a line 38, and filtrate is sent by a line 37 to a fourth holding tank 39.  A fourth slurry is obtained in tank 39 by maintaining a temperature lower than that in tank 31 but higher than that in tanks 14 and 22, by recycling slurry through a heat exchanger 42.  Slurry removed by a line 40 is sent to a centrifuge 44, where a filtrate is obtained which is sent by a line 45 to tank 14, and the crystalline cake is sent by a line 46 to tank 31.  In a second embodiment the first slurry in tank 14 is sent to centrifuge 19 and a crystalline product removed, while the filtrate is sent by line 20 to tank 22, a part of the second slurry in tank 22 being passed through line filter 28 where the filtrate is discarded and the slurry returned to tank 22, while another part of the slurry from tank 22 is sent to tank 14. In a third embodiment the process is the same as that in the second embodiment but the slurry from tank 22 is centrifuged and the crystalline cake obtained is sent to the first slurry in tank 14 and the filtrate discarded.  In the second and third embodiments the third and fourth holding tanks are omitted.  The process may also be used to separate paraxylene, orthoxylene, durene, benzene and naphthalene from mixtures containing them.
Patent GB-801166-A (GB)
Title: Isomerisation process and catalyst therefor
IPC: B01J21/16
Filed: 1956-12-27
Abstract: An isomerization catalyst comprises a silicaalumina base component having a surface area ranging from 110 to 235 square metres per gram and containing chromic oxide impregnated thereon in an amount ranging from 1 to 6 per cent of chromium calculated on the weight of the base component.  The base comprises 50 to 95 per cent by weight of silica. The mixture of silica and alumina is steamed or heated to reduce the surface area to an amount in the above range, and is then impregnated with a solution of chromic trioxide and dried.  Examples are given.ALSO:Alkanes having five to seven carbon atoms and petroleum naphtha containing the same, are isomerized at 700 DEG  to 1050 DEG F. and at a pressure of 0 to 750 lb. per square inch gauge in the presence of 0 to 5 mols. of hydrogen per mol. of hydrocarbon with a catalyst comprising a silica-alumina base component having a surface area of 110 to 235 square metres per gram and containing chromic oxide impregnated thereon in an amount of 1 to 6 per cent of chromium calculated on the weight of the base component.  The liquid volume of hydrocarbon feed per hour per volume of catalyst is between 1/2 and 5.  In examples, pentane is isomerized to isopentane, and heptane to isoheptane.
Patent GB-896906-A (GB)
Title: Improvements in and relating to the production of n-carboxyalpha amino acid anhydrides
Inventor: BALLARD DENIS GEORGE HAROLD
IPC: C07D263/44
Filed: 1959-11-23
Abstract: <PICT:0896906/III/1> An apparatus for contacting a solid with a gas in the presence of a liquid (specifically for contacting phosgene with an amino acid in suspension) comprises a reaction vessel 1 having a gas inlet tube 9 and containing a number of balls or other grinding media, supported on a base 2.  Below the base 2 and separated from it by a number of springs is a second base 4 connected to an off-balance centrifuge motor 5.  Specification 854,139 is referred to.ALSO:N-Carboxy-a -amino acid anhydrides are prepared by reacting phosgene with an a -amino acid while the acid is being subjected to a grinding action, e.g. in a standard ball mill or in a vibroenergy mill in which the balls are kept in motion by an off-balance centrifuge motor.  The amino acid is preferably added as a slurry in a diluent in which both the phosgene and the product are soluble.  In an example, g -methyl L-glutamic N-carboxy anhydride is prepared from g -methyl L-glutamate. Specification 854,139 is referred to.
Patent GB-1359369-A (GB)
Title: Polyeric product its production and use
IPC: C08F20/62
Filed: 1971-08-24
Abstract: 1359369 Hydroxyalkyl- and carboxylic groupcontaining copolymers SUMITOMO NAUGATUCK & CO Ltd 24 Aug 1971 [24 Aug 1970 (2)] 39630/71 Heading C3P A copolymer has a molecular weight of from 500-30,000 and comprises 10-90 wt. per cent of one or more hydroxyalkyl group-containing monomer units, and 10-70 wt. per cent of units of a monomer or monomers containing a carboxyl group or anhydride or metal salt thereof. Up to 60 wt. per cent of units of another monomer containing no such groups may also be present. The polymers are prepared by polymerizing the monomers whilst controlling the molecular weight with a chain terminator such as a C 4 -C 18  alkyl mercaptan, a haloalkane, a hydrocarbon or an alkanol. Examples of the hydroxy monomer are a hydroxyalkyl acrylate or methacrylate, a mono- or dihydroxyallyl itaconate, maleate or fumarate, a dialkylene glycol itaconate or fumarate, a hydroxylalkyl alkyl itaconate or fumarate, an N-(mono- or di-hydroxyalkyl) acrylamide or methacrylamide, an N-(di-alkylene glycol)acrylamide or methacrylamide, a hydroxylalkyl vinyl ether, a hydroxyalkyl vinyl ketone or an acrylic acid monoglyceride. Examples of the acidic monomer are acrylic, methacrylic, crotonic, itaconic, maleic and fumaric acids, the anhydrides and metal salts thereof, or a monoalkyl-itaconate, maleate or fumarate. In the examples, hydroxy-ethyl acrylate is copolymerized with (a) maleic anhydride, (2) mono-octyl maleate, and (3) acrylamide and itaconic acid, and (4) N-methylol acrylamide is copolymerized with maleic anhydride, all in solution. The molecular weight regulators used are octyl mercaptan, isopropanol and dodecyl mercaptan. The copolymers are treated with NaOH. The copolymers are used as emulsifiers for the emulsion polymerization of unsaturated monomers, and in Examples 5-8, the emulsifiers prepared in 1-4 are used in the preparation by emulsion polymerization of the following copolymers: butadiene/styrene/itaconic acid/ acrylic acid; acrylonitrile/styrene; butadiene/ styrene / methyl methacrylate / fumaric acid; and butadiene/acrylonitrile/acrylic acid.
Patent GB-1386289-A (GB)
Title: Method of washing globules of solid inorganic oxide gel or hydroxide
IPC: C01B13/36
Filed: 1972-08-25
Abstract: 1386289 Washing microspheres REACTOR CENTRUM NEDERLAND (STICHTING) 25 Aug 1972 [26 Aug 1971] 39821/72 Heading C1A Microspheres of inorganic oxide gels or hydroxides (optionally containing carbon), prepared by forming droplets of a liquid inorganic phase in a water-immiscible organic phase, are washed with an aqueous phase containing a surface active agent, optionally containing NH 3 . The organic phase may also contain a surfaceactive agent, e.g. polyoxyethylene sorbitol fatty acid ester, and in this case the agent in the washing phase is preferably a mixture of sorbitan ester of a fatty resin acid with an alkyl aryl sulphonate. The agent may also be present in the inorganic phase when the phase contains particulate carbon. The organic liquid may be a C 12  alkyl benzene. The inorganic phase may contain NH 3  or an ammonia releasing agent, e.g. urea, hexamethylene tetramine, NH 4 CO 3 , potassium cyanate, ammonium cyanate, acetamide and/or formamide. The inorganic phase may be SiO 2  sol, a metal hydroxide sol, a solution of a metal salt and/or an anion deficient solution of a metal salt, e.g. a uranyl nitrate solution. The inorganic phase may contain the metal cations Zr<SP>4+</SP>, Hf<SP>4+</SP>, Y<SP>3+</SP>, Sc<SP>3+</SP> and/or R.E.<SP>3+</SP> together with an actinide metal ion. The washed spheres may then be dried and sintered.
Patent GB-1113240-A (GB)
Title: Current regulator
IPC: G05F3/18
Filed: 1965-09-20
Abstract: 1,113,240. Transistor switching and negative resistance circuits. MOTOROLA Inc. 20 Sept., 1965 [8 Oct., 1964], No. 39941/65. Heading H3T. [Also in Division G3] A load 12, which may be the field winding of an alternator in a car electrical system, is supplied from input terminals 13, 15 by way of a transistor 10 which is controlled by a further transistor 16 associated with avalanche diodes 22, 24 and resistors 17, 19 connected as shown across the terminals 13, 15. When the input voltage is low, diodes 22, 24 are non-conducting and transistor 16 controls transistor 10 to supply an increasing current with increasing supply voltage until diode 24 is rendered conductive to clamp the voltage at the base of transistor 16 with respect to terminal 13; if the supply voltage further increases, transistor 10 then supplies a constant current until diode 22 breaks down to clamp the emitter voltage of transistor 16 with respect to terminal 15. With diodes 22 and 24 conducting transistor 10 is then controlled so that a further small increase in supply voltage results in a large decrease in load current (Fig. 2, not shown). The circuit thus presents a negative resistance characteristic with respect to a voltage applied to terminals 13, 15. The resistor 17 may be replaced by a potentiometer (Fig. 3, not shown) so that the slope of the negative resistance portion of the characteristic may be varied, and the diode 22 may be biased by a separate voltage (Fig. 4, not shown). A field-effect transistor may replace the diode 24, the resistor 19 and the transistor 16 (Fig. 5, not shown).
Patent GB-1275354-A (GB)
Title: Screen or spectacle lens for protection against sunlight
IPC: G02B5/20
Filed: 1970-08-20
Abstract: 1275354 Composition containing polymerized diethylene glycol diallylcarbonate CARLZIESS - STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 20 Aug 1970 [21 Aug 1969] 40161/70 Heading C3P [Also in Division G2] Compositions containing carbon black and polymerized diethylene - glycol - diallylcarbonate are used in optical filters, and are prepared by polymerizing mixtures of solutions 1, 2 and 3. Solution 1 contains cyclohexyl percarbonate and monomeric diethylene glycoldiallylcarbonate which has been heated to initiate polymerization and the polymerization then stopped by cooling. Solution 2 contains carbon black dispersed in diallyl phthalate; diethylene - glycol - diallylcarbonate and cyclohexyl percarbonate, which has had polymerization initiated as for solution 1. Solution 3 contains 2,2<SP>1</SP>- dihydroxy - 4,4<SP>1 </SP>- dimethoxy benzophenone dissolved in diethylene glycoldiallylcarbonate. All these solutions are storable under refrigeration. By using different ratios of the three solutions, and polymerizing, materials having different optical properties are produced.
Patent GB-1469026-A (GB)
Title: Unitary guide
IPC: D01H13/04
Filed: 1974-09-16
Abstract: 1469026 Sliver guides in a drawing machine BRUNSWICK CORP 16 Sept 1974 [17 Sept 1973] 40187/74 Headings DID and DIN A unitary guide comprises two trumpet shaped apertures 37, 38 with a circular entrance and rectangular exit and halfway between them an aperture whose diameter is less than the larger dimension of said rectangular exit. The smaller aperture has a bush 41 e.g. of ceramics. The guide is employed on a drawing machine to guide a tow 55 between two slivers 50, 60 as they enter the nip of the first rollers. The tow is of conductive material e.g. metal filaments to produce an anti static final product e.g. for carpets. In Fig. 1 two tows are shown being blended with several slivers the composite sliver formed being coiled in a cam 18.
Patent GB-954396-A (GB)
Title: Improvements in or relating to tables
IPC: A47B87/00
Filed: 1961-11-10
Abstract: 954,396. Tables. T. C. McGUIRK. Oct. 17, 1962 [Nov. 10, 1961], No. 40310/61. Headings A4B, A4H, A4U and A4W. A table having at least one pair of legs 2 hinged for folding beneath one edge of a table top 1 includes locking means comprising channel brackets 7 on the legs 2 which, in the legs unfolded position, lie adjacent further channel brackets 10 depending from the table top 1 and at least one bar-like member 14 depending from a cover 15 or table top 1 which is received in the aligned channel brackets 7, 10 to lock the latter and hence the legs 2. Tables may be assembled together by engagement of locking bars 14 secured to one table top 1 in channels 7, 10 of an adjacent table top. Hinge portions 4, 5 may be integral with the channel brackets 10, 7 respectively, and the hinge pins 6 may be removable.
Patent GB-1443626-A (GB)
Title: Radar-augmented sub-target
IPC: F41J9/08
Filed: 1974-09-17
Abstract: 1443626 Flying targets NORTHROP CORP 17 Sept 1974 [25 Feb 1974] 40447/74 Heading B7W [Also in Divisions F3 and H4] A flying target system comprises a remotely controlled drone aircraft 2 having suspended below the tip of each wing 4 a rocket propelled target 7 suspended by a slipper and socket device 10. Each target comprises a shell 20 formed with a nose section 11 profiled to accommodate a Luneberg lens 12 provided to enable the target to be tracked. Aft of section 11 a tube 15 houses a fast burning rocket motor 16 which is remotely fired to discharge through a nozzle 19. Annular radar-reflective panels 24 are positioned between tube 15 and shell 20, the resulting cavities being filled with a plastics foam filler in which are embedded further cruciform strip radar reflectors 26. A three element tail 21 is provided and the fins may be angled to cause the target to spin about its axis or this may be achieved by deflecting the efflux passing through nozzle 19. To ensure that tracking systems lock on to the fired target only one target has a radar non-reflective cover fitted over its lens 12 and this is removed by remotely controlled pyrotechnic means prior to the launch of the second target.
Patent GB-1029032-A (GB)
Title: Chromium and cobalt complexes of monoazo dyes containing halogenopyrimidylamino residues
Inventor: UEHLINGER HANSPETER
IPC: C09B62/255
Filed: 1962-10-26
Abstract: The invention comprises chromium or cobalt 1:2 complex reactive dyes which contain at least 3 sulphonic acid groups and which in their metal-free state are of formula <FORM:1029032/C4-C5/1> wherein B-OH is the radical of a coupling component linked ortho to the hydroxyl group, R is a mono-, di- or tribromo- or chloropyrimidyl group which is not substituted by a heterocyclic ring bound through a sulphur atom, Z is hydrogen or a C1-C5 alkyl group and wherein A and B together contain one or two sulphonic acid groups.  The dyes are prepared by the steps of coupling a diazotized anthranilic acid with a coupling component containing an -NH-Z group, metallizing the monoazo dye or mixtures thereof with a cobaltor chromium-yielding agent and reacting the -NH-Z groups with di-, tri- or tetra-halopyrimidines in any desired order.  The dyes may be used to colour cellulose and nitrogenous materials by the usual reactive dye processes in yellow, red, blue or brown shades.  Reference has been directed by the Comptroller to Specifications 904,581, 916,094, and 917,780.ALSO:Sodium 2 - trichloropyrimidylamino - 5 - hydroxynaphthalene - 1,7 - disulphonate is prepared by dissolving 2-amino-5-hydroxynaphthalene-1,7-disulphonic acid in sodium hydroxide solution, adding 2,4,5,6 - tetrachloropyrimidine, maintaining the mixture slightly acid by adding sodium carbonate and salting out the product.  Reference has been directed by the Comptroller to Specifications 904,581, 916,094 and 917,780.
Patent GB-943191-A (GB)
Title: Improvements in or relating to ball and socket joints
Inventor: SIMCOX JOHN RANDLE
IPC: F16C11/10
Filed: 1958-12-17
Abstract: 943,191. Ball joints. METALS Ltd. Dec. 17, 1959 [Dec. 17, 1958], No. 40636/58. Heading E2F. [Also in Division A4] A ball joint comprises a ball 6 which protrudes through an opening in the wall of the socket and is forced into frictional engagement with an annular seating 5 around the rim of the opening by an axially adjustable stud or pin 10 mounted in an aperture in the wall of the socket and extending into the socket on the opposite side of the ball from the seating to directly engage the ball. In the embodiment shown the stud 10 is adjusted by a wing nut 13 thereon so that the rims of the stud head 11 and a sleeve 12 contact the surface of the ball, but in a modification the nut and sleeve are replaced by a screw which engages a tapped hole in the stud and the head of which abuts the outside of the socket. Two balls clamped by the same stud may be provided, one at each end of the socket, and the head of the stud may carry a pair of bowed arms to clamp the joint to a support. The stud may be mounted axially of the socket instead of transversely as shown.
Patent GB-897582-A (GB)
Title: Chocking device
IPC: B60T3/00
Filed: 1959-12-01
Abstract: 897,582. Vehicle chocks. DE COLNET, M. Dec. 1, 1959 [Dec. 3, 1958], No.40786/59. Class 103 (1). A chocking device for retaining a vehicle wheel of an assembled motor vehicle which is to be transported by road or rail comprises a base 1 adapted to be located on a supporting element (e.g. the platform of a transporter vehicle), a pair of retaining plates 9 each adapted to pivot about a transverse axis 6, 7 placed part way along the length of the plate from a vehiclereceiving position 9<SP>1</SP> to a vehicleretaining position 9 whereby a vehicle wheel may be driven on to the chock from either end, arranged so that when a vehicle is driven on to the centre of the base it traverses an end of one plate and passes over the axis thereof and then acts upon the other ends of both plates to tilt the latter into the vehicle retaining position, and means to lock the plates in the vehicle-retaining position. The locking means comprises a pair of locking pins 13 which are adapted to engage apertures 12 in flanges 11 mounted on the chocking device structure 1, 10. Four metal studs 2, 3, 4 and 5 are provided on the base 1 of the device to engage holes formed in the floor or guide rails of the transporter vehicle.
Patent GB-1082579-A (GB)
Title: Labeling machine
IPC: B65C9/36
Filed: 1965-09-28
Abstract: 1,082,579. Labelling machines. ROTO AMERICAN CORPORATION. Sept. 28, 1965 [Oct. 27, 1964], No. 41092/65. Heading B8F. In a labelling machine in which an applicator picks up a label separated from a backing strip and applies it to an article passing on a conveyer means are provided to control the position of the applicator relative to the arm by which it is reciprocated. A label strip 26, Fig. 1 (not shown), is withdrawn from a supply roll 27 and passed round rollers 28-30 to separate individual labels 67 for supply to a platform 71 from which they are lifted by a suction applicator 88 for application to an article 20 passing on conveyer belts 21. The applicator is mounted by means of a post 89 on a frame 24 which reciprocates about a shaft 25 and by means of a chain passing over a gear rotatably supported on a bar 83 on the frame and a gear fast on the shaft 25 the post 89 maintains its attitude during its reciprocation as shown. Also by means of a cam plate 94 the applicator is rotated relative to the post 89 during part of the movement. By altering the gears over which the chain passes the final attitude of the applicator at the applying station can be altered e.g. to apply the label to the vertical side of an article.