baber/WOPTO huggingface dataset:
Patent GB-1313582-A (GB)
Title: Pigment compositions
IPC: C08L33/02
Filed: 1970-04-21
Abstract: 1313582 Pigment/polymer compositions CIBA-GEIGY AG 21 April 1970 [22 April 1969] 19042/70 Headings C3F and C3P Pigment/polymer compositions useful for colouring materials such as thermoplastic resins, cyclized rubber, cellulose acetates, lacquers and printing inks are produced by (I) mixing (a) an aqueous dispersion of a copolymer prepared by emulsion polymerization of styrene and one or more C 1 -C 12 -alkyl acrylates and/or methacrylates with (b) an organic solvent which under the conditions of mixing dissolves the copolymer and forms, with the water present, a two-phase system in which the ratio of the surface tension of the organic solvent-rich phase to that of the water-rich phase is less than 1, and optionally with (c) a pigment in aqueous dispersed form to form a water-in-oil emulsion, and (II) mixing the emulsion, optionally after removal of the aqueous phase, with further water and, if not present in step I, pigment in aqueous dispersed form or, if present in step I and, if desired, further such pigment such that the water and organic solvent form a solution, and (III) kneading the pigment/copolymer mass. at or above the softening temperature of the copolymer, and removing water/organic solvent solution. The organic solvent used may be, for example, methyl ethyl ketone, isopropanol or n-butanol. Pigments specified are titanium dioxide, iron oxide, lampblack, gas black, azo pigments, phthalocyanines which may be chlorinated, anthraquinones, vat dyestuffs, and pigments of the quinacridone, dioxazine, perinone, perylene-tetracarboxylic acid diimide or indigoid series. In examples the pigment/ polymer compositions are incorporated into (a) polyethylene, (b) a printing ink comprising a mixture of polymethyl methacrylate, polyvinyl chloride and cellulose acetobutyrate dissolved in tetrahydrofuran/methyl isobutyl ketone, (c) a coating composition (applied to various metal surfaces) comprising vinyl chloride/vinyl acetate/maleic acid copolymer, methyl ethyl ketone, toluene, tin mercaptide stabilizer and epoxidized soya bean oil, (d) polymethyl methacrylate, (e) a polycarbonate and (f) polystyrene.
Patent GB-1373206-A (GB)
Title: Optical indicator element with liquid crystal layer
IPC: G09F9/35
Filed: 1973-04-19
Abstract: 1373206 Modulating light DEUTSCHE SPIEGELGLAS AG 19 April 1973 [6 May 1972] 19113/73 Heading H4F [Also in Division G5]  An optical indicator element has a liquid crystal layer 10 between electrically conducting, light-transmitting layers 16, 20 in one or both of which numbers, letters, or the like are formed on a glass plate 12, 14 on the side of each layer remote from the crystal layer 10, there being a semi-reflecting layer 18 between a glass plate and an adjacent conducting layer. Alternatively, layers 18 may be applied on the external faces of each plate 12, 14. Layers 18 may be interference layers of titanium dioxide and/or silicon dioxide.
Patent GB-868001-A (GB)
Title: Improvements in and relating to cross-linkable polymer compositions
IPC: C08F255/00
Filed: 1958-06-16
Abstract: A cross-linked product is prepared by heating at 150 DEG -250 DEG C. a composition of a saturated polyolefin, an organic peroxide and a diallyl ester of an organic polycarboxylic acid and optionally a pulverulent inorganic filler.  Ingredients specified are: polymers of ethylene, propylene, butene, isobutylene, pentene, hexene, styrene, divinyl benzene, vinyl naphthalene, naphthalene, ethylene/propylene, ethylene/decene and ethylene/styrene; diallyl-fumarate, -maleate, -adipate, -succinate, -citrate, -citroconate and -monomethyl ester of trimesic acid; carbon black, silica, flamed silica, esterified silica, alumina, calcium carbonate, and calcium silicate; and many peroxides, in particular di-t-butyl and dicumyl peroxides.  In examples other ingredients are ethyl zimate and diphenyl phenylene diamine, and chloronaphthalene is used in a swelling test.  The products may be formed into film, bottles or tubing.  Specification 619,905 is referred to.
Patent GB-975914-A (GB)
Title: Sulphonation of organic compounds
Inventor: MARSHALL PHILIP
IPC: C07C303/00
Filed: 1961-05-26
Abstract: <PICT:0975914/C1/1> A process for sulphonating or sulphating aliphatic alcohols, saturated fatty acids, aliphatic olefins, aryl or alkaryl hydrocarbons, fatty acid alkanolamides, and condensation products of ethylene or propylene oxide with an alkyl phenol, or a fatty acid, alcohol or alkanolamide comprises passing the organic compound as a liquid solution, suspension or slurry and as a free annular jet from a zone of higher pressure through an orifice into a zone of lower pressure, and introducing a gaseous mixture of sulphur trioxide and an inert gas into the centre of said annular jet through a nozzle extending into said zone of lower pressure. Reaction is preferably effected at 0 to 80 DEG C. and with a pressure drop of 5 to 300 p.s.i.  Inert gases specified are air, hydrogen, nitrogen, sulphur dioxide, carbon dioxide, or mixtures thereof. As shown in the Figure, a reactor comprises a passage 11 divided by orifice plate 12 into a zone 13 of higher pressure and a zone 14 of lower pressure. Sulphur trioxide mixture is introduced through tube 15 and nozzle 16, and the organic compound is introduced through pipe 18.  The orifice 17 is preferably sharp-edged to increase turbulance, this effect being also increased by flow breaker 20 and by the introduction of inert gas into passage 18; flow breaker 20 serves to break up this gas into small bubbles, which expand on passing through the orifice. These flow breakers may comprise helical coils of wire of a metal inert to sulphur trioxide.  Reaction product may be recycled through cooler 31.  The process and apparatus may be applied to batch-wise or to continuous sulphation or sulphonation.  Specific examples relate to the sulphonation of dodecyl benzene and of a mixture of dodecyl benzene and xylene, and to the sulphation of (a) a mixture of lauryl, cetyl and oleyl alcohols and an adduct of ethylene oxide and cetyl and oleyl alcohols, and (b) of an ethylene oxide adduct of tridecyl alcohol.
Patent GB-1531893-A (GB)
Title: Catadioptric objective system
IPC: G02B17/08
Filed: 1976-05-10
Abstract: 1531893 Catadioptric lenses with selectable focal lengths RANK ORGANISATION Ltd 27 Jan 1977 [10 May 1976] 19213/76 Heading G2J The focal length of a catadioptric lens Figs. 1A and B is changed by changing the secondary mirror while maintaining unchanged the following parameters:- (a) the entrance pupil position and aperture (b) the image position and diameter As described, the exchange of secondary mirrors is accompanied by a change of lenses within the aperture of the primary mirror. In the Example of Figs. 2A-B (not shown), a plane secondary is used in the shorter focal length configuration, while a dispersive mirror/lens combination is used in the longer focal length configuration, the change being accompanied by the exchange of a lens between the aperture of the primary mirror and the image plane. Detailed data of both configurations are given. The objective is useful for interchangeable day/ night observation devices.
Patent GB-116466-A (GB)
Title: Improvements in Apparatus for Operating Railway and like Points by Wire.
IPC: B61L5/10
Filed: 1917-12-29
Abstract: 116,466. Vincent, E. I. M., Servais, J., and Tyer & Co. Dec. 29, 1917. Signals and points, interlocking.-The rotatably mounted pulley wheel 11 which operates the points 49, 50 is also formed with a cam surface 22 for coacting with a spring-pressed roller 23 to control the detector contacts 24, 25, 26 whereby the corresponding signals are locked during the movement of the points mechanism.
Patent GB-624703-A (GB)
Title: Improvements in or relating to radial cylinder pumps
IPC: F04B23/10
Filed: 1946-06-27
Abstract: 624,703. Sealing rings. SORENSON, C. S. June 27, 1946, No. 19274. [Class 122(v)] [Also in Group XXVIII] A pump shaft 9 carries a rubber ring 21 and a bronze bushing 20 in sealing engagement with a bronze bushing 16 mounted with a rubber ring 17 in a shoulder of a cover 14.
Patent GB-773206-A (GB)
Title: Improvements relating to polymerizable mixtures of carboxyl-containing copolymers with polymerizable oxirane triazines
IPC: C08L63/00
Filed: 1954-07-01
Abstract: A polymerizable mixture consists of (A) a copolymer of one or more a ,b -unsaturated carboxylic acids or anhydrides with one or more different compounds containing CH2=C< and (B) one or more substances with the general formula <FORM:0773206/IV(a)/1> in which m=1, 2 or 3; n=0, 1 or 2; X is a halogen; Y is H, alkyl, alkenyl, aryl, alkaryl, aralkyl, amino, hydrocarbon substituted amino, or OR11 where R11 is alkyl, alkenyl, aryl, alkaryl or aralkyl; and G is a substituent of the general formula <FORM:0773206/IV(a)/2> in which U is alkylene and Z is H or alkyl, the total number of carbon atoms in G not exceeding 10.  When the non-acid ingredient of (A) is other than an alkyl ester of an a ,b -unsaturated carboxylic acid, the copolymer (A) may include a third ingredient which is such an ester.  Copolymer (A) preferably has an acid number of at least 15, e.g. between 25 and 100.  The weight ratio of (A) to (B) is preferably between 95:5 and 60:40.  Copolymer (A) may be formed in an inert solvent and reacted with (B) in an inert solvent.  The Specification lists a number of suitable solvents. Components (B) and their preparation are described and claimed in Specification 755,468.  A list of suitable substances is given in the Specification.  Suitable acids for component (A) are acrylic, crotonic, isocrotonic, methacrylic, fumaric, glutaconic, maleic, citraconic and itaconic.  The second ingredient of component (A) may be styrene; a -methyl-, ethyl- or chlorostyrene; o, m, or p-alkyl or halo styrene; poly-alkyl styrene; acrylonitrile; methacrylonitrile; ethacrylonitrile; allyl alcohol; allyl or polyallyl esters; or alkyl esters of a ,b -unsaturated carboxylic acids.  Many specific substances are mentioned.  Several specific alkyl esters of a ,b -unsaturated carboxylic acids are also mentioned as optional third ingredients of component (A).  Any conventional polymerization catalyst may be used in the preparation of component (A).  A number of peroxide catalysts are mentioned.  In Examples 1-8 the triazine derivative used is triglycidyl cyanurate and films are formed from its reaction product with a copolymer prepared with cumene hydroperoxide as catalyst from (1)-(4) acrylic acid, styrene and butyl acrylate in amyl acetate; (5) and (6) acrylic acid, styrene and butyl acrylate in methyl "Cellosolve" (Registered Trade Mark); (7) maleic anhydride, styrene and acrylonitrile in xylol-butanol mixture; (8) acrylic acid, styrene and acrylonitrile in xylol-butanol.  In Example (9) a copolymer of acylic acid and methyl isobutyl carbinyl acrylate is heated with glycidyl cyanurate.  In Example (10) a copolymer of methacrylic acid, styrene and n-hexyl methacrylate is used with mixed glycidyl cyanurates containing each 60 per cent of the epoxy oxygen in triglycidyl cyanurate.  In Examples (11) and (12) the copolymer of Example (5) is used with 2,4 - diglycidyl - 6 - p - tertiarybutylphenoxy-s-triazine, and 2-amino-4-glycidyl-6-dibutyl-amino-s-triazine respectively.
Patent GB-701847-A (GB)
Title: An improved table game
Inventor: SMITH AVIS PATRICIA
IPC: A63F7/26
Filed: 1951-08-15
Abstract: 701,847. Table games. SOCCERETTE, Ltd. Aug. 14. 1952 [Aug. 15, 1951], No. 19311/51. Class 132(2) . In a table game in which a light ball or puck is moved over a board 20 by the impact of statuettes 32 standing on substantially conical bases 33 moved by interaction between magnetic material in the bases and magnets on handles manipulated under the board, the face of the magnet is or can be placed at an acute angle to the longitudinal axis of the handle. In a modified form the magnetic material may be on the handle and the magnet in the base. As shown in Fig. 7, a horse-shoe magnet 36 is mounted rigidly on the handle 39, has the ends of its limbs forming a flat upper face and has its axis of symmetery at right-angles to the handle so that it pulls better in the line of the handle than sideways. The axis may, however, be in line with the handle to give a stronger sideways pull. As shown in Fig. 9, a plate-like magnet 46 is carried on a base 45 pivoted in a cradle 46 fixed to a handle 47. Long and short handled magnets may be provided. A boundary 22 and detachable goals 27 are provided, the board 20 being perforated at 28 in the goals to slow down the ball which may be grooved for the same purpose. Each corner of the board is fitted with screwed feet for levelling purposes. The ball may have a segment struck off and may be fitted with magnetic material so that it can be directly moved by the magnets. The board is perforated at the starting positions of the statuettes. To prevent players acting on their opponents' pieces, one set of statuettes carries magnetic material and the other magnets, the players using operating magnets and magnetic material respectively. According to the Provisional Specification, the board comprises a printed sheet sandwiched between two laminae, the upper of which is transparent.
Patent GB-751302-A (GB)
Title: Fuel brick
IPC: C10F7/04
Filed: 1954-07-02
Abstract: 751,302. Fuel bricks. WILSON, E. A. Nov. 19, 1954 [July 2, 1954], No. 19380/54. Class 50. A fuel brick comprises compressed air-dried peat or other similar naturally occurring or waste burnable material secured between two slabs of wood or stout cardboard. Suggested other materials are bagasse or sugar cane fibre, Nile sud, nut shells or wood factory or industrial wastes.
Patent GB-693699-A (GB)
Title: Improvements in and relating to the production of cellulose esters
Inventor: DAVOUD JOHN GORDON
IPC: C08B3/30
Filed: 1950-08-03
Abstract: A precipitated secondary cellulose ester, e.g. cellulose acetate, is stabilized by treating it with a dilute aqueous solution of a mineral acid at a temperature not less than 70 DEG  C. and, either simultaneously with or subsequently to the stabilizing treatment, it is bleached by treating it with an aqueous sodium chlorite solution in presence of acid.  Sulphuric acid is the preferred mineral acid, and a solution containing 0.02-0.10 per cent by weight of sulphuric acid may be used.  The proportion of sodium chlorite used may be 0.1-2.5 per cent by weight based on the weight of the cellulose ester.  The stabilizing treatment may be carried out at 125-150 DEG C. under superatmospheric pressure. When the bleaching is carried out separately from the stabilization, the temperature of bleaching may be 70-100 DEG  C. at atmospheric pressure.  The treated cellulose esters may be moulded into crystal-clear articles of good heat stability.  In an example, freshly-precipitated cellulose acetate flakes are washed until the free acetic acid content is reduced to 0.02 per cent. The flakes, suspended in 10 times their weight of wash liquor, are pumped into a pressure vessel and the temperature is raised by live steam to 90 DEG  C.  Small proportions of sulphuric acid and sodium chlorite are added and then the slurry is heated to 140 DEG  C. and maintained at this temperature for 30 minutes.  The pressure is then released and the product is washed and dried. U.S.A. Specifications 1,948,517, 2,135,980 and French Specification 915,740 are referred to.
Patent GB-243050-A (GB)
Title: Improvements in or relating to grates for shaft furnaces
IPC: F23H13/00
Filed: 1924-08-16
Abstract: 243,050. Cornet, E. Aug. 16, 1924. Discharging.-A discharge grate for a shaft furnace is formed of curved bars g having aligned trunnion portions g<1>, g<2> about which adjacent bars are rocked in opposite directions. The bars are preferably so formed that parts of the straight end portions extend into the furnace chamber. Two or more of the bars mav be interconnected for simultaneous operation by end pinions, or, as shown in Fig. 2, the bars may be rocked by a cable f<1>, which extends from a winding drum l, round a pulley h, across the space beneath the bars, round a pulley i, back to the pulley h, and thence to a counterweight k. Alternate, bars are connected to one of the cross runs beneath the grate, and the remainder to the other run. If desired the bars may be arranged in two sets at different levels.
Patent GB-187683-A (GB)
Title: Improvements in or relating to pumps for internal combustion engines
IPC: B01D25/30
Filed: 1921-07-19
Abstract: 187,683. Romeyn, J. July 19, 1921. Single-acting piston pumps; valves, arrangement of; strainers and sediment traps.-In a fuelpump for internal-combustion engines, the fuel is filtered by passing it through a large loaded delivery valve g, the lift of which is so small that the impurities are retained and fall to the bottom of the pump chamber where they are bypassed to a settling tank &c. through a valve i. The valve i is opened during a portion of the delivery stroke by a lever operated by the plunger b. In another form, the valve i is closed by a spring ,and opens outwards. In another form, the lever j is operated by a projection on the sleeve of the eccentric c. The valve i may be replaced by a hand-cock.
Patent GB-583015-A (GB)
Title: Improvements in reciprocating machines
IPC: F02B75/26
Filed: 1944-10-10
Abstract: 583,015. Slide guides. MICHELL, A. G. M. Oct. 10, 1944, No. 19467. Convention date, Oct. 30, 1943. [Class 12 (i)] [Also in Group XXVI] A reciprocating piston and cylinder mechanism in which a slide extending from or jointedly attached to the piston moves along a guide piece has the slide arranged so that it engages internal and external bearing faces of the guide piece. Fig. 1 shows a swash plate mechanism in which oppositely disposed . cylinders 16, 17 have the pistons 2, 3 thereof connected by shanks 4 to a slide 1 cut away to allow entrance of the swash plate 8 by which the slide and pistons are reciprocated, the slide 1 moving along a guide piece 12 of cylindrical form centred in the cylinder ends and likewise cut away to allow passage of the swash plate. The slide 1 engages the interior bearing surface 13 of the guide piece 12 but has a saddle 10 bolted thereto which engages the external bearing surface 11 of the guide piece 12 as shown in the cross-sectional view, Fig. 4, the guide piece having a longitudinal slot 14 along which the securing bolt block 20 of the saddle can pass during the reciprocating movement; shims 21 are inserted to give the required clearances.- The saddle may however be secured by means of arms extending down past side bearing faces of the guide piece to be bolted to the side of the slide, Figs 8 and 9 (not shown), or the saddle may be a simple flat piece engaging corresponding external flats on the cylindrical guide piece, Fig. 7 (not shown). In the single piston arrangement shown in Fig. 13 the slide is jointedly connected to the piston by a spherical segment plate 51 formed on the end of the piston rod 45 and held in ball joint engagement with a boss 50 on the slide 1 by a cap piece 52. The guide piece 12 is centred at one end only being held in and up to the cylinder 55 by a clamping ring 59 bolted to the cylinder which ring has a spherically shaped flange to engage a similar flange 58 at the end of the guide piece. The slide 1, saddle 10 and the securing-stud block 66 are fitted with bearing pads 61 to engage the internal and external bearing surfaces 13, 11 and a slot 14 of the guide piece 12; these pads are freely mounted in spherical recesses on the parts in question but are retained therein by pins 62. Lubricant is supplied from a nozzle 68 to enter the slot 14 and pass to a recess 69 in the surface of the slide whereby the various surfaces are lubricated. In small machines the guide piece may be formed integrally with the cylinder or a cylinder liner. Specification 118,098, [Class 12 (i)], is referred to.
Patent GB-646713-A (GB)
Title: Process for imidizing polyacrylamides
IPC: C08F8/00
Filed: 1947-07-21
Abstract: The imide content of a water-soluble polyacrylamide or poly-a -methacrylamide is increased by heating the polymer in the presence of water and an acid having a dissociation constant above 1 X 10-3. Suitable acids are hydrobromic, hydrochloric, sulphuric, nitric, phosphoric, tartaric, malonic, oxalic, dichloracetic, p-toluene sulphonic and perchloric acids.  The process is effected at temperatures of about 90 DEG  C. for several hours and the products extracted with methanol.  The products contain up to 70 per cent by weight of acrylimide groups, up to 30 per cent of acrylic acid groups and the remainder acrylamide; and will precipitate from acid solution above 0 DEG  C., the higher the imide content, the higher the temperature of precipitation. The higher molecular weight imidized products form reversible gels on neutralization of the acid groups with aqueous alkali. Neutralization of the lower molecular weight products lowers the temperature of precipitation.  The products are useful colloidizing materials and form films which may be hardened and insolubilized by formaldehyde, zirconium salts and other tanning agents.  Specification 646,714 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the preparation of imidized polyacrylamide from polyacrylyl chloride.  Acrylyl chloride in dioxane is polymerized by actinic light, and precipitated and purified with benzene.  The polymer is dissolved in acetone, liquid ammonia is added and the product extracted with methanol and finally precipitated from aqueous solution with excess hydrochloric acid. The product is stated to contain 31.6 per cent of acrylimide groups. This subject-matter does not appear in the Specification as accepted.
Patent GB-816770-A (GB)
Title: Improvements in or relating to tilt correctors
Inventor: KELLY JOHN REGINALD
IPC: F41G3/10
Filed: 1953-07-14
Abstract: 816,770. Ordnance. VICKERS-ARMSTRONGS (ENGINEERS) Ltd. May 25, 1954 [July 14, 1953], No. 19593/53. Class 92 A gun, controlled by a computor, has a tilt corrector supported on the gun mounting which modifies the computor signals before their application to the elevating and training motors, to allow for the tilt of the mounting. The corrector is adjusted, manually, by means of two levels, and effects a rotational displacement between the motor shafts and the magslips supplying the motor amplifiers. As shown, Fig. 1, the gun 1 mounted on platform 4 is positioned by the elevating motor 12 and training motor 8 controlled, with respect to the true horizontal and vertical, by computor 18. In each case the imput signal to the motor is modified by both a resetter forming a follow-up remote control system of the kind described in Specification 748,073 [Group XXXVIII] and the tilt corrector 13 mounted on 4. The tilt corrector, Fig. 3, has two manual inputs applied on hand wheels 33, 40 and two mechanical inputs, GE, GT supplied to shafts 14, 15 from motors 12 and 8 respectively. The electrical outputs, which are supplied to the motor input amplifies 20, 22, are produced on magslips 75, 76 and 78, 79. Normal control by computor 18. The training motor 8 drives pin 48 through shafts 15, 37; the shaft 14 is driven by 12 and the mechanical signals at 14, 48 are modified to produce three further mechanical signals, one of which controls magslips 75, 76 and two of which control 78, 79. In the control of 75, 76 the original signals are combined by means of slider 54, differential 68 and shaft 73 to operate cam 66 on shaft 63. The follower 65 is set by slider 56 controlled by 48. In control of 78, 79, the first signal is produced at shaft 61 by cam 62 mounted on shaft 63 while the second signal is applied through slider 54 and shaft 80. Manual adjustment of tilt corrector. First, the handwheel 33 is rotated and the gimbol 26 turned until the level 28 is horizontal, the cam 46 and the wheel 51 moving together. Secondly, handwheel 40 is rotated and the tilt setting cam 31 is turned until the level 27 is horizontal. Relative motion occurs between 46, 51 and pin 48 is set at a radius proportional to the angle of tilt.