baber/WOPTO huggingface dataset:
Patent GB-1075184-A (GB)
Title: Polymer latices
IPC: C08F2/22
Filed: 1964-09-03
Abstract: A polymer latex is produced by successively emulsion polymerizing at least two separate monomer charges, the penultimate of which comprises an a ,b -ethylenically unsaturated carboxylic acid and the last of which (and no earlier charge) comprises a secondary or tertiary amine containing vinylidene unsaturation, in such amounts that the monomers which polymerize to contribute the final 0.01 micron increase to the diameters of the resultant copolymer particles comprise at least 2.5 mol per cent of the acid and at least 4.5 mol per cent of the amine in a ratio of 0.4-1.3 mol of acid/mol of amine. The acid may be methacrylic and the amine may be dimethylaminoethyl methacrylate. The acid and amine charges may both include styrene. The emulsion polymerization may be carried out in an aqueous mixture of the monomers and an alkylaryl sulphonate, tetrasodium pyrophosphate, potassium persulphate, a nonylphenol-ethylene oxide condensate and sodium lauryl sulphate.  The polymers formed may comprise particles of polystyrene or a styrene-methacrylic acid copolymer coated with a styrene/methacrylic acid/dimethylaminoethyl methacrylate copolymer, of a styrene/methacrylic acid copolymer coated with a styrene/dibutylaminoethyl methacrylate copolymer and then a methacrylic acid/dibutylaminoethyl methacrylate copolymer; of a polyvinyl chloride coated with a vinyl chloride/acrylic acid/dimethylaminoethyl methacrylate copolymer; of a butadiene/styrene copolymer coated with a styrene/methacrylic acid/t-butylaminoethyl methacrylate copolymer and of polymethyl methacrylate coated with a methyl methacrylate/methacrylic acid/dimethylaminoethyl acrylate.ALSO:Particles of polymer in a latex are coated with at least 0.01 micron thickness of a copolymer comprising at least 2.5 mol% of an a , b -ethylenically unsaturated carboxylic acid and at least 4.5 mol% of a secondary or tertiary amine containing vinylidene unsaturation in a ratio of 0.4 - 1.3 mol of acid mol amine.  In examples particles of polystyrene or a styrene-methacrylic acid copolymer are coated with a styrene / methacrylic acid / dimethylaminoethyl methacrylate copolymer; of a styrene/methacrylic acid copolymer are coated with a styrene/dibutylaminoethyl methacrylate copolymer and then a methacrylic acid/dibutylaminoethyl methacrylate copolymer; of a polyvinyl chloride are coated with a vinyl chloride/acrylic acid/dimethyl aminoethyl methacrylate copolymer; of a butadiene/styrene copolymer are coated with a styrene/methacrylic acid/t-butyl aminoethyl methacrylate copolymer and of polymethyl methacrylate are coated with a methyl methacrylate/methacrylic acid/dimethylaminoethyl acrylate.
Patent GB-802581-A (GB)
Title: Automatic weighing apparatus
Inventor: ELLINGER HERBERT
IPC: G01G13/00
Filed: 1955-12-17
Abstract: 802,581. Automatic feed weighers. SOUTHALL & SMITH, Ltd. Nov. 26, 1956 [Dec. 17, 1955], No. 36249/55. Class 143 The weight of each charge of material fed by an automatic feed weigher to the injection cylinder of an injection moulding machine is determined by the weight of chain 7 which is supported by the weights holder 6, and this weight of chain is automatically adjusted to correspond with the length of the previous stroke of the injection piston. A movement multiplying linkage 13-21 connects a bar 11, movable by the injection piston (not shown), with a vertically movable slide 8, which supports one end of the chain, thereby adjusting the chain at the end of each injection stroke. The weigh pan 4 is fed by a vibratory tray 5 and is discharged into the cylinder (not shown) by a solenoid 9.
Patent GB-902387-A (GB)
Title: Purification of bis-hydroxyethyl phthalates
Filed: 1960-10-25
Abstract: A method for the separation of bis(b -hydroxyethyl) esters of isophthalic and terephthalic acid from a mixture thereof comprises contacting the mixture with a selective liquid solvent for the isophthalate, said solvent consisting essentially of methylene chloride, isolating the terephthalate ester as the portion of said mixture not dissolved by said solvent and separating the isophthalate ester from said solution. Specification 623,669 is referred to.
Patent GB-619473-A (GB)
Title: Improvements relating to the production of gear wheels with face teeth
IPC: B29C70/26
Filed: 1946-12-12
Abstract: 619,473. Toothed wheels. MEASUREMENT, Ltd., and HEWLETT, S. J. Dec. 12, 1946, No. 36699. [Class 80 (i)] [Also in Group V] A gear wheel made of thermoplastic material such as " Perspex " (Registered Trade Mark), and having face teeth in the form of a plurality of concentric rings c is made by hot-pressing the material between die-plates, the material flowing into countersunk holes h in a reinforcing plate a which is disposed in the mould and forms part of the finished gear wheel. The plate a has secured thereto a bush f, and may be of metal. As shown, the concentric rings of teeth are on one face only, the other face having a single row of teeth d. The material may be in sheet or powder form.
Patent GB-1007003-A (GB)
Title: Method of and device for mechanically deepening the floor of a mine drift
IPC: E21D9/00
Filed: 1962-09-27
Abstract: 1,007,003. Mine floors; ploughing up equipment. A. OLLERICH [Trading as MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN]. Sept. 27, 1962 [Nov. 27, 1961], No. 36778/62. Heading E1F. The floor of a mine drift is deepened by ploughing up from and over a predetermined length of the floor transversely successive strips of the floor by one or more planing units 3 drawn to and fro along said part of the floor by suitable haulage means 10, the units having at the leading lower edge loosening tools from behind which extend pick up surfaces that convey ripped up floor material to a conveyer 6 by which the material is discharged laterally of the plough into mine cars or onto a drift conveyer. The loosening tools are preferably of a percussive type that become effective on slip movement occurring between a planing unit and the haulage run of the haulage means, the haulage run at the planing unit passing about a pulley arrangement on the plough and drivingly connected to the percussive means. The idle run of the haulage means in passing about a further arrangement in the plough causes on movement of the plough operation of the conveyer 6. The or each planing unit may move along a guide rail extending through the drift.
Patent GB-1027054-A (GB)
Title: Improvements in or relating to functional fluids
Inventor: KER ROBERT ALAN CAMERON
Filed: 1963-09-18
Abstract: Hydraulic fluids comprise (a) a brominated alkyl benzene of general formula <FORM:1027054/C4-C5/1> where the average value of x is 2 to 3 and R is a primary or tertiary C2-C4 alkyl group and (b) at least one carboxylic acid ester of lubricating viscosity having a boiling point of at least 220 DEG  C., the composition containing at least 30% by weight of bromine and being a liquid having a viscosity of not more than 10,000 c.s. at - 65 DEG  F.  Esters specified are diesters derived from a C5-C12 dicarboxylic acid and an aliphatic monohydric branched chain alcohol having at least 6 carbon atoms or an ester of trimethylol propane or pentaerythritol fully esterified with a C4-C10 monocarboxylic acid. The composition may contain a polymeric thickening agent having a molecular weight of less than 50,000, e.g. a polyisobutylene, an alkyl polymethacrylate or copolymer thereof with N-vinyl pyrrolidone. The composition may also contain at least one anti-oxidant, e.g. phenyl-a  and b  naphthylamine, 2,6-di-tertiary butyl-p-cresol, methylene bis-(2,6-di-tertiary butyl)phenol or phenothiazines.  The composition may also include metal deactivators, e.g. benzotriazolo and load carrying additives, e.g. di-isopropyl phosphite or other C4-C20 dialkyl phosphites.
Patent GB-833001-A (GB)
Title: Electroluminescent cells
Inventor: NAGY ELEMER
IPC: H05B33/20
Filed: 1956-12-03
Abstract: An electroluminescent cell has a layer of a phosphor, a binder and a filler between a pair of electrodes, the filler being inorganic such as titanium oxide or zirconium oxide or a titanate, zirconate, hafnate or niobate, e.g. of an alkaline earth metal such as barium, strontium or magnesium, or mixtures thereof.  The phosphor can be zinc sulphide, zinc cadmium sulphide or zinc sulpho-selenide.  The binder can be nitrocellulose, nitrocellulose and polystyrene, collodion and polystyrene or polyester, cellulose acetate butyrate and polyester, or melamine formaldehyde resin and polystyrene with or without collodion. Dibutyl phthalate or tricresylphosphate can be added as plasticizer or softener.  The solvent for the binder can be a mixture of amyl acetate and butyl acetate, or acetone to form binder compositions, several examples of which are described.  A suspension of the phosphor, filler and binder is applied, e.g. by spraying, to one of the electrodes and dried to remove the solvent. The other electrode is then applied over the layer so formed so that no air is included.
Patent GB-1247838-A (GB)
Title: Game device
IPC: A63F7/02
Filed: 1970-07-30
Abstract: 1,247,838. Indoor games. M. I. GLASS [trading as MARVIN GLASS & ASSOCIATES]. 30 July, 1970 [8 Aug., 1969], No. 36905/70. Heading A6H. A game device comprises an enclosure 48 affording a tortuous passage for a playing piece 14 which is inserted in an opening 54a, the enclosure being provided with openings in opposed front and rear faces for interruption of the playing piece 14 by a scoop 16 which is inserted into one of the openings. As shown the openings in the two faces are not aligned. A supporting base 24 is provided for storage of interrupted playing pieces 14, the storage compartments being numbered to agree with numbers on the openings. The tortuous passage is provided by pins which span the front and rear faces of the enclosure.
Patent GB-1444241-A (GB)
Title: Preparation of freshwater from sea water
IPC: C02F1/04
Filed: 1973-08-03
Abstract: 1444241 Treating sea water H TABATA and N TABATA 3 Aug 1973 [8 Aug 1972] 36909/73 Heading C1C A process for the pre-treatment of sea water as a preliminary stage in the evaporation thereof to produce fresh water and brine, in which a magnesium carbonate slurry, in which the molar ratio of CO 2  to MgO in the magnesium carbonate is from 0À3 : 1 to 1À2 : 1, is added to the sea water in such an amount that the molar ratio of calcium dissolved in the sea water to CO 2  in the slurry is between 1 : 1 and 1 : 2 so as to precipitate from 90 to 99% by weight of the calcium dissolved in the sea water in the form of calcium carbonate, the reaction being effected at a temperature of from 50‹ to 65‹ C.
Patent GB-801071-A (GB)
Title: Textile drawing mechanism
IPC: D01H5/56
Filed: 1956-12-05
Abstract: 801,071. Roller - weighting. S K F KUGELLAGERFABRIKEN G. m. b. H. Dec. 5, 1956 [Jan. 4, 1956], No. 37223/56. Class 120(2) Drafting mechanism for textile spinning frames comprises a pivotal weighting arm which carries spring-weighted top drafting rollers and which is provided with a catch mechanism, actuated by means of an operating lever, to retain the weighting arm in operative position, and is characterized in that the operating lever, which is pivotally mounted on the weighting arm in such manner as to be movable towards and away from the top drafting rollers, is also pivotally connected with an auxiliary lever in such manner that when the operating lever is moved in the direction towards the top rollers, the auxiliary lever is moved into position to bear against a stationary member of the drafting mechanism and maintain the drafting mechanism in operative position. The first embodiment (Figs. 1, 2) comprises a stationary bracket 10, a weighting arm 14, which is pivoted at 15 and carries helical weighting springs (not shown) and top rollers 17, and an operating lever 20 which is pivoted on a bolt 21 to the arm 14 and which, in the operative (pressure applying) position of the mechanism, bears on the arm 14 at 22. An auxiliary lever 27 is pivoted on a bolt 26 to the lever 20. One end of a spring 28 is attached to the bolt 21, the other end pressing against a piece 29 of the lever 27, and an intermediate portion of the spring bears on the bolt 26. In the operative position of the mechanism, the lever 27 bears against a bent portion 31 of the bracket 10 and the bolt 26 lies to the right (Fig. 2) of a "dead-centre" line connecting the bolt 21 with the portion 31 and cannot, because of the pressure of the weighting springs move to the other side of said line. If.the lever 20 is turned upward against the action of the weighting springs the bolt 26 crosses the line and the lever 27 is disengaged from the portion 31 and is turned upward by a spring 24. The arm 14, which is then resting under its own weight, may next be raised. To reapply pressure to the arm 14 the lever 20 is turned downward, whereupon the lever 27 bears against the bent-in portion 31 and the bolt 26 is moved, against the influence of the weighting springs, to the right of the "dead-centre" line, with the result that the mechanism is retained in the operative position. In the second embodiment (Fig. 6), an operating lever 36 is pivoted on a bolt 37 to the arm 14 and has pivoted to it on a bolt 39 an auxiliary lever 40 which has a slot 41 the sides of which are slidable on a bolt 42 fixed in the arm 14. A flat spring 45 is attached to the arm 14 and is positioned between the bolts 37, 39. In the operative position the bolt 39 is above the "deadcentre" line between the bolt 37 and a bolt 44 which is in the bracket 10 and against which the lever 40 bears when the mechanism is in the operative position. Upward movement of the lever 36 causes the bolt 39 to cross the line and the lever is disengaged from the bolt 44. The bolt 39 is forced downward by the spring 45.
Patent GB-955167-A (GB)
Title: Manufacture of multiple-cell inner-lined cartons
IPC: B31B11/00
Filed: 1961-10-17
Abstract: 955,167. Making tubes. INTERSTATE FOLDING BOX CO. Oct. 17, 1961 [Oct. 17, 1960], No. 37250/61. Heading F2P. [Also in Divisions B5 and B8] Apparatus for continuously forming a tubular carton liner having an internal partition dividing it into a plurality of compartments comprises means for advancing a web, folding, cutting heat-sealing it and applying it to a carton blank. The liner material 1 is drawn from a roll 7, fitted with a friction brake 9, both then pass around idler roller 10 and from thence to a steel sealing drum 11 where one edge 8a of the material is heat sealed to tha liner by a shoe 12 which is along the axis of drum 11. A fluid driven piston arrangement 20, 21 coupled through arms 19, 17 to the shoe 12 provide automatic means of removing the shoe 12 when the machine is inoperative thus preventing overheating. Pinch rollers 22 control, by means of solenoids, the movement of piston 20 which is connected to the heating shoe, they also draw the web along to where it passes under idler roller 25 and guide roller 26 to former 27 where the edges 32 of the liner are gathered up, bent over and held down in a known manner by plates 30, 31, 33 and 34 and wheels 35. Heaters 36, 40 then heat seal flaps 32 and the other end 8b of the dividing strip 8 respectively and the joints are coded by bars 37, 41. The joined liner then passes through squeeze rollers 48 and is then cut by rollers 49. The former may be of two types, one arranged as in Fig. 10 so that the divider passes through slit 38 which extends only along the second part of the former 27 and lies above it while the other divider edge is sealed. The other type of former (Fig. 8) is arranged with a wheel 46 below the slit which pushes only the free end of the dividing strip through the slit to seal it. The liner may be of paper foil laminate coated with polyethylene and the dividing strip of polyethylene or other combinations of heat fusible materials. One or both sides of the divider may be coated with heat sealable material.
Patent GB-1317409-A (GB)
Title: Arrangement for relieving strain in a mechanical linkage
IPC: B60T11/10
Filed: 1971-08-10
Abstract: 1317409 Linkwork; disc-brake transmitting mechanisms DR ING hcF PORSCHE KG 10 Aug 1971 [20 Aug 1970] 37430/71 Headings F2E and F2K In a foot operated hydraulically applied motor-vehicle disc brake 1 having a ratchet holding hand brake 9 applied through linkwork 9-21 interconnected with the brake operating shaft 2 through which the foot brake is applied via an hydraulic cylinder/piston unit 5, 6 and linkwork 7, 3, the handbrake linkwork 9-21, when operated, is protected from the very high brake loading, i.e. pressures hydraulically generated during normal operation of the foot brake 5-7, by a compensating spring 16 which functions as follows. When the vehicle is to be held stationary by the handbrake 9 the foot brake is first applied through the operating shaft 2 via the hydraulic unit 5-7 and a swivel arm 22 mounted on the shaft 2 through a one-way freewheel device (not shown), after which the hand brake 9 is applied through the linkwork 11-21 to hold the brake 1 applied when the foot pedal is released and the one-way device freewheels to return the hydraulic unit to its inoperative position, the large engaging forces of the brake assembly generated by the foot pedal hydraulic pressure now reacting back through the hand brake linkage 21, 20, 18 and being reduced by the spring 16 which acts as a resilient link (Fig. 2) in the handbrake linkage to absorb and thus reduce the brake loading reacting back through the hand brake linkage 21-29.
Patent GB-1128904-A (GB)
Title: Improvements in beverage dispensing equipment
Inventor: SHACKLETON HAROLD
IPC: G09F23/06
Filed: 1964-09-16
Abstract: 1,128,904. Changing signs. JAMES HOLE & CO. Ltd. 13 Dec., 1965 [16 Sept., 1964], No. 37741/64. Heading G5C. In beer-dispensing apparatus wherein beer discharged from a container is replaced by gas admitted through a pressure reducing valve, operation of the reducing valve illuminates an advertisement. In a preferred circuit a lead extends from one mains terminal through a switch operated by a solenoid valve incorporated in the reducing valve, a suppressor, a lamp or lamps, a further suppressor, and back to another mains terminal. The advertisement may comprise a rear-illuminated panel.
Patent GB-1187223-A (GB)
Title: Settling Tank incorporating a Sludge and Scum Clearing Device
Inventor: SCHULZE WERNER
IPC: B01D21/18
Filed: 1967-08-16
Abstract: 1,187,223. Settling tank. WASSERVERSORGUNG und ARWASSERBEHANDLUNG COTTBUS, VEB. 16 Aug., 1967, No. 37778/67. Heading B1D. . An elongated sludge settling tank, with a sludge sump (22) and .a floating scum-collecting channel (23) near one end, has a scraper plate 3 and a scum plate 6 which are moved together by cables 10, 14 leading back to a winch (16), plate 3 being upright and buoyant plate 6 projecting from the liquid surface when the plates are making their working movement to the left (Fig. 4, not shown), but plate 6 being pulled below the surface and plate 3 lifted from the tank floor during the return movement (Fig. 5). Plate 3 is embraced by a pair of U-shaped frames 1 about which arms 5 are pivotable up to a point defined by stops 15, and the cables 10, 14 are so anchored to the arms 5 and frames 1 as to effect the tilting of frames 1 when tension is shifted from one cable to the other. Cables carry stops which reverse the winch automatically when one movement is completed. Arms 5 could be arranged to enable plate 6 to skim the surface during the return movement, instead of during the working movement, of plate 3.
Patent GB-995944-A (GB)
Title: Carbazates, and processes for their preparation
IPC: A61K31/27
Filed: 1963-09-26
Abstract: The invention comprises carbazates of the formulae <FORM:0995944/C2/1> and <FORM:0995944/C2/2> or an acid addition salts thereof wherein R is a hydrogen or a halogen atom or a C1- 4-alkoxy group and the preparation of compound I by reacting a compound II with a reducing agent and, if desired, preparing compound II by reacting a carbazate of the formula <FORM:0995944/C2/3> with acetone. Compounds of formula III are prepared from the corresponding benzyl chloroformate and hydrazine.  Pharmaceutical compositions comprise the compounds of formula I or acid addition salts thereof in association with an acceptable carrier therefor.  The compositions may be formulated as tablets, sterile aqueous or non-aqueous solutions, powders or granules or capsules or cachets containing the powders or granules.  The compounds are amino-oxidose inhibitors and are useful in the treatment of angina pectoris and psychotropic conditions.
Patent GB-926984-A (GB)
Title: Improvements in or relating to electricity meters and the like
Inventor: URQUHART DAVID NOEL FINLAY
IPC: G07F15/00
Filed: 1959-11-11
Abstract: 926,984. Prepayment mechanisms. LANDIS & GYR Ltd. Oct. 26, 1960 [Nov. 11, 1959], No.38263/59. Class 27. In a consumption meter and prepayment mechanism therefor wherein one side of the differential of the prepayment mechanism is debited in accordance with the measured consumption by electromagnetic means 30 operable in response to electrical impulses from the meter representing measured consumption and the other side is displaced in accordance with the inserted credit, one of a train of gears included in the meter is provided with means to generate one electrical impulse per complete revolution for the purpose of rotating the debit element of the differential by a fixed amount. The electromagnetic means 30 is a relay with windings 32 and having attached to the armature 34 a pallet 36 urged by a spring 40 into engagement with an escapement wheel mounted for rotation with a gear-wheel 42 geared to a shaft 44 which passes to the debit element of the differential and is biased by a spring for rotation in the debiting direction. The impulses are supplied from an impulse generator 4 having contacts 6, 8 closed by a freely-rotatable cam 14 having a single step 16 biased by a weight 18 to hang at bottom deadcentre on a shaft 12 of the consumption meter; the shaft 12 is preferably that of the 0.1 KWh per division pointer. A shoulder 22 on the weight 18 is engaged by a stop 20 on the shaft 12 which serves to drive the step 16 up to and over top dead-centre when it drops down and closes the contacts 6, 8. The relay 30 may be provided with a separate impulse counter.