baber/WOPTO huggingface dataset:
Patent GB-1017048-A (GB)
Title: Zinc recovery
IPC: C22B4/04
Filed: 1964-11-20
Abstract: A process for recovering zinc from a zinc-containing material comprises melting a salt <PICT:1017048/C6-C7/1> charge consisting of at least one alkali metal salt or alkaline earth metal salt in a refractory vessels; bubbling a reducing gas into the melt in order to condition the melt for the introduction of zinc-containing materials therein; charging the zinc-containing material into the melt after it has been so prepared; electrolysing the melt to which said material has been added, while continuing to bubble reducing gas into the melt and while maintaining the melt at a temperature sufficient for the melt to remain fluid and for zinc to evolve from said melt as a vapour under the prevailing conditions of temperature and pressure; and recovering said zinc from the vapours evolved during said electrolysis. Impurities in the zinc-containing material may include iron, manganese, aluminium, copper and nickel.  The salt charge may comprise calcium chloride and calcium oxide, and the reducing gas may be hydrocarbon gas, e.g. methane, or carbon monoxide.  The zinc-containing material may be mixed with a solid carbonaceous reducing agent and a small amount of alkaline earth oxide prior to being charged into the melt.  The impurities such as iron, manganese and nickel are deposited upon the cathode, from which they may be recovered. A suitable apparatus comprises a crucible 10 with a cover 12 through which are passed a graphite anode rod 16, a nickel cathode rod 18, a conduit 20 for introducing heated argon to agitate the melt, and a flue 24 permitting vapours to be recovered from the process.  The zinc vapour is collected in a fibre glass filter bag (not shown).  The crucible may be provided with heaters 28.
Patent GB-1406345-A (GB)
Title: Pharmaceutical preparations comprising substituted resorcinols
IPC: C07C45/00
Filed: 1973-10-11
Abstract: 1406345 Compositions containing resorcinols CHEM. PHARMAZ FABRIK DR. HERMANN THIEMANN GmbH 11 Oct 1973 [13 Oct 1972] 47496/73 Heading A5B [Also in Division C2] A pharmaceutical composition comprises a resorcinol of the general formula wherein X represents an oxygen atom or an  -NH group, R<SP>1</SP> represents a hydrogen atom or a methyl group, R<SP>2</SP> represents a hydrogen atom or a methyl, alkoxycarbonyl or group, R<SP>3</SP> represents the group wherein R<SP>1</SP> and R<SP>2</SP> have the above-mentioned meaning, R<SP>4</SP> represents a hydrogen atom, R<SP>5</SP> represents a hydrogen atom or the group R<SP>3</SP>, R<SP>6</SP> represents a hydrogen atom or a hydroxyl group or R<SP>3</SP> and R<SP>4</SP> together denote the radical wherein R<SP>1</SP> and R<SP>2</SP> have the above meaning, or a physiologically tolerable salt thereof.
Patent GB-1530529-A (GB)
Title: Rotary positive displacement device
IPC: F01C21/18
Filed: 1976-11-18
Abstract: 1530529 Rotary positive displacement machine H L MCDERMOTT 18 Nov 1976 [28 Nov 1975] 48031/76 Heading F1F In a "Gerotor" machine comprising an internallytoothed rotatable ring member having at least one more tooth than an externally-toothed rotor which co-operates therewith to define alternately expanding and contracting working chambers, the inlet and exhaust ports 19, 20 are so shaped that peripheral portions 23, 24, conform to portions of the profile of the teeth defining a working chamber when the working chamber is of maximum volume. The ports 19, 20 are formed in at least one of two axially opposite end-walls of a housing in which the toothed members are mounted.
Patent GB-1205687-A (GB)
Title: Aminoalkanol esters and their pharmaceutically acceptable acid-addition salts, and production thereof
IPC: C07C215/08
Filed: 1968-10-10
Abstract: 1,205,687. Phenylalkylaminoalkanols and esters thereof. DAINIPPON PHARMACEUTICAL CO. Ltd. 10 Oct., 1968 [13 Oct., 1967(2)], No. 48040/68. Heading C2C. Novel compounds of formula and pharmaceutically acceptable acid addition salts thereof in which formula R is a hydrogen atom or a phenyl group, R<SP>1</SP> is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R<SP>11</SP> is an acyl group or a hydrogen atom, the group A is an ethylene group or a methylmethylene group provided that A is not a methylmethylene group when R is a hydrogen atom, and n is a positive integer of 3 or 2, are prepared by (i) condensing a compound of the general formula with a compound of formula Z-(CH 2 ) n -OR<SP>11</SP>, A<SP>1</SP> is a methylenecarbonyl, an ethylene or a methylmethylene group, R, R<SP>11</SP> and n are as hereinbefore defined, and Y and Z are different and are a halogen atom or a group wherein R<SP>1</SP> is as hereinbefore defined, (ii) reducing the product of (i) when A<SP>1</SP> is a methylenecarbonyl group, (iii) reacting the product, of the last procedure carried out, with an acylating agent when R<SP>11</SP> is a hydrogen atom and if desired, (iv) reacting the product of the last procedure carried out, with an alkylating agent when R<SP>1</SP> is a hydrogen atom and if desired. 3,3-Diphenylpropyl chloride is prepared by action of thionyl chloride on 3,3-dipropan-l-ol. 2 - (3,3 - Diphenylpropionylamino)- ethanol is prepared by reaction of 2-aminoethanol with 3,3-diphenylpropionyl chloride prepared in situ by action of thionyl chloride on the acid. Pharmaceutical compositions in conventional forms for oral or parenteral administration comprise an above novel compound wherein R<SP>11</SP> is an acyl group or salt and a carrier therefor and the novel compound or composition is used in treatment of cardiovascular disease.
Patent GB-1368631-A (GB)
Title: Method of dry grinding metal or metal oxide particles
IPC: B02C17/16
Filed: 1971-10-15
Abstract: 1368631 Agitator mills A SZEGVARI 15 Oct 1971 [19 Oct 1970] 48142/71 Heading B2A The subject matter of the Specification is substantially the same as that of Specifications 1,366,935 and 1,368,632, but the claims relate to a method of grinding metals or metal oxides, and particularly magnetic materials in an agitator mill for a time longer than that at which maximum size reduction occurs so that the physical properties, and particularly magnetic properties of the solid material are changed.
Patent GB-1520950-A (GB)
Title: Sheet feeder
IPC: B65H3/02
Filed: 1976-11-18
Abstract: 1520950 Sheet handling ING C OLIVETTI & C SpA 18 Nov 1976 [3 Dec 1975] 48151/76 Heading B8R A sheet feeder comprises an oscillating arm 112 which carries sheet pusher(s) 30 which feed a top sheet of a stack 18 on a forward movement and which trail over the top sheet on the return, the pushers 30 being long enough to maintain the backwards angle they make with the stack 18 on the feed movement less then 90 degrees. Stack 18 is supported on a base 33 carried by spring scissors levers 53, 60. The pushers 30 which wedge against the top sheet on the feed movement have plastics or rubbers ends 100 and are mounted on a rod 102 which follows arcuate slots 105 (106, Fig. 2, not shown). Arm 112 is actuated by a rotating cam 120 on the return stroke and a spring 115 on the feed stroke and can only feed when electromagnet 134 is energized to release pin 136. By moving edge stop 44 different size sheets can be accommodated and in doing so the tension in springs 84 is altered to automatically maintain constant stack height.
Patent GB-1302018-A (GB)
IPC: C08L61/20
Filed: 1970-10-09
Abstract: 1302018 Acrylic lacquer coating compositions INMONT CORP 9 Oct 1970 [10 Oct 1969] 48193/70 Headings C3F and C3P An acrylic lacquer coating composition comprises a solvent for the binder and a binder which comprises 10 to 40% by weight of cellulose acetate butyrate having a hydroxyl content of 0À7 to 2% and a butyryl content of 37 to 53%, between 1 and 5% by weight of a melamine resin having an average molecular weight of 400-700 and capable of reacting with the cellulose acetate butyrate when the coating composition is cured, and 40-60% by weight of an acrylic polymer which is substantially devoid of any groups capable of reacting with the melamine resin. The acrylic polymer may be a homo- or copolymer of methyl methacrylate, n-butyl methacrylate, isobutyl methacrylate or n-butyl acrylate, and preferably has an average molecular weight of 75,000 to 500,000. The melamine resin may be a methylated, nbutylated or isobutylated melamine/formaldehyde resin or an n-butylated diallyl melamine/ formaldehyde resin. The binder may also contain up to 35% by weight of a plasticizer, and the composition may also contain up to 5 parts by weight per part of binder of a solid particulated filler or pigment such as titanium dioxide and metallic pigments. Aluminium paste may also be added. Suitable plasticizers are phthalate esters and polymeric esters. The solvent may be an ester or ketone, and may additionally contain aromatic solvents and low boiling alcohols. In the examples, the acrylic polymer is (I) a copolymer of methyl methacrylate and isobutyl methacrylate, (III) a copolymer of methyl methacrylate and butyl methacrylate, (V) polymethyl methacrylate and (VI) a copolymer of methyl methacrylate and butyl acrylate.
Patent GB-1093095-A (GB)
Title: Improvements relating to connections with dispersion-strengthened lead
Inventor: BIRD THOMAS LEWIS
IPC: C22C11/02
Filed: 1965-11-15
Abstract: A solder or brazing alloy consisting of Sn 2.8-3.2%, Ba 0.04-0.06%, Pb the remainder is used in making connections to parts, e.g. electric battery plates, made of dispersion-strengthened lead.  The solder alloy may also be used for structural parts to be connected e.g. the bus-bars.
Patent GB-1351379-A (GB)
Title: Control device for knitting machines
IPC: D04B35/10
Filed: 1971-10-19
Abstract: 1351379 Knitting machines FOUQUETWERK FRAUZ & PLANCK 19 Oct 1971 [28 Dec 1970] 48462/71 Heading D1C Each of a series of movable units of a knitting machine has a device which actuates a contact at a predetermined time if the unit is in its correct position, the contacts I to n being connected in parallel and having non- actuated and actuated positions in which they can energize respectively first and second relays 8 and 9 when a further contact 28 is closed at predetermined times which if both relays 8 and 9 are closed actuates a third relay 20 which opens its contact 31 to deenergize motor 30 and stop the machine. Thus if one unit is out of position, the motor is closed. The contacts 1 to n may be actuated by cams 37, 38 &c on the covers 46 of pattern drums or by butts 44 aligned with the tricks of pattern drums.
Patent GB-1331950-A (GB)
Title: Chemical process
IPC: C12N1/00
Filed: 1970-10-14
Abstract: 1331950 DNA and RNA KYOWA HAKKO KOGYO KK 14 Oct 1970 [14 Oct 1969] 48848/70 Heading C3H A process for the production of DNA and/or RNA comprises cultivating, in a nutrient medium therefor, a DNA- and/or RNA- producing micro-organism capable of producing DNA and/or RNA in the medium, and subsequently recovering the DNA and/or RNA thus produced in the culture medium without extraction of any DNA or RNA produced in the cells. The cells may be removed prior to recovery of the DNA and/or RNA from the medium. The organism may be Arthrobacter paraffineus, A. simplex, A. hydrocarboglutamicus, Brevibacterium ketoglutamicum, Micrococcus ureae, Corynebacterium hydrocarboclastus, Pseudomonas fluoriscens, P. aeruginosa, Aspergillus oryzae or Candida lipolytica. A preferred carbon source is hydrocarbons. The nucleic acids may be precipitated by addition of phenol and a lower alcohol to the medium.
Patent GB-1124786-A (GB)
Title: Improved dosimeter
Inventor: BRYER ROBERT GEORGE
IPC: H01J47/04
Filed: 1964-12-01
Abstract: 1,124,786. Electroscope dosimeters. R.A. STEPHEN & CO. Ltd. Dec. 1 1965 [Dec. 1, 1964], No. 48867/64. Heading G1Q. A radiation dosimeter, of the kind comprising a moving fibre electroscope 3 charged by the radiation to be measured, is enclosed in a housing in which a lens 5 focuses an image of the moving element on to a graticule 6, and a viewing lens 12 for reading the instrument is detachably mounted on or in the housing. For this purpose the housing has two fiducial surfaces, one defining an axis perpendicular to the graticule and one defining a plane to which this axis is perpendicular. In the assembled dosimeter, these surfaces are directly or indirectly engaged by corresponding surfaces of the viewing lens mount and such engagement ensures that the viewing lens will occupy the appropriate position in relation to the graticule. In Fig. the fiducial surfaces of the dosimeter housing are (a) the cylindrical inner surface of the cup-shaped insert 9 secured to the tubular outer shell 1 of the housing and (b) a surface of a groove 14 in this cylindrical surface. The corresponding surfaces of the lens mount 13 are (a) its cylindrical outer surface below the flange 11 and (b) a surface of a groove in this cylindrical surface. Surfaces (a) are in direct engagement, the lens mount being a sliding fit in the insert 9; surfaces (b) are in indirect contact, both grooves engaging a spring clip 15 whose presence ensures that corresponding surfaces of the two grooves are in alignment, with the viewing lens at the correct distance from the graticule. The clip may either be a loose fit in the grooves, serving merely as a location guide :for a temporarily attached viewing lens; or a tighter fit so that the lens will not be inadvertently disturbed if left attached to the instrument. In Figs. 2 and 3 (not shown) the spring and groove. locating system is dispensed with. In Fig. 2, the equivalent pair of fiducial surfaces are the plane end of the housing and the adjacent plane face of a flange, corresponding to flange 11 of Fig. 1, on the lens mount. These surfaces both engage a washer of appropriate thickness which is located between them. In Fig. 3, the lens mount is a cupshaped member which fits over the end of the housing and in this case the fiducial surfaces defining the distance between the viewing lens and the graticule are the adjacent end surfaces of the rim of this cup-shaped member and a collar on the outside of the instrument housing. In the Fig. 2 form, the telescopic engagement between the lens mount and the housing of Fig. 1 is replaced by a screw-threaded engagement.
Patent GB-1475094-A (GB)
Title: Sheet handling apparatus in a reproducing assembly
IPC: G03G15/00
Filed: 1974-11-14
Abstract: 1475094 Delivering sheets XEROX CORP 14 Nov 1974 [7 Dec 1973] 49392/74 Heading B8R  A sheet inverter comprises rollers 101, 103, Figs. 3 and 4, forming a nip N into which sheets S are fed, the roller 101 being driven continuously by a belt 110. If the sheet is to be inverted, a clutch 115 is energized and a belt 120 is driven so as to rotate a frame carrying the rollers 101, 103 through 180 degrees about the axis of the nip N. The clutch may be energized when a sheet is detected by a photoelectric detector 111, the signal at the same time energizing a solenoid to move a latch 121 out of the path of the frame. The inverted may be used to handle sheets delivered from a xerographic copying machine to a sorter, the signal activating the inverter when the machine is being used to produce simplex copies, but not when it is being used to produce duplex copies.
Patent GB-1447877-A (GB)
Title: Silencers for internal combustion engine exhaust gases
IPC: F01N1/10
Filed: 1973-10-24
Abstract: 1447877 Making silencers TECUMSEH PRODUCTS CO 24 Oct 1973 [25 Oct 1972] 49488/73 Heading B3A [Also in Division F1] A one-piece baffle member 50 is disposed in a chamber 16 defined by a body 12 and a cover 14 between a chamber inlet 26 and outlets 32. The body has bends 74, 76 in its side walls 24, 25 which obstruct movement of the member 50 longitudinally of the walls in one direction and positively locate the member prior to projection welding to the body and fixing of the cover to the body. Projecting flanges 36, 36<SP>1</SP>, 38, 381 around bolt holes in the cover and body locate spacer tubes 43, 44 on either side of a curved baffle 46 when the flanges 18, 20 of the body and cover are crimped together. The outlets 32 may be provided in the end wall 29, top wall 23 or the bottom wall of the body.
Patent GB-1367505-A (GB)
Title: Textile finishing composition
IPC: C08G63/52
Filed: 1971-10-25
Abstract: 1367505 Treating textiles AMERICAN CYANAMID CO 25 Oct 1971 [1 Dec 1970] 49516/71 Heading D1P [Also in Division C3] A polyester resin composition comprises a solution of: (1) a polyester resin prepared from a (C2-4) alkylene glycol, an aromatic dicarboxylic acid, a dimerized fatty acid and a (C4-10) unsaturated aliphatic dibasic acid, and (2) a nonionic or anionic surfactant, in an organic solvent. An aqueous dispersion of the polyester composition which may contain an aminoplast resin may be used as a textile finishing composition to impart improved hand and durable press characteristics. The textile finishing composition containing the aminoplast resin and an acid-acting catalyst may be applied to a cellulose textile material in an amount such as to apply from 0.25% to 8% of the polyester, based on the weight of textile material and heating the textile to dry and cure the finish thereon. The Examples describe using an aqueous pad both containing 1.3-dimethylol-4,5-dihydroxyethyleneurea and a polyester composition containing a polyester derived from ethylene glycol, propylene glycol, phthalic acid, fumaric acid and a dimer acid prepared from unsaturated fatty acids with 18 carbon atoms, surfactants which are the reaction products of nonylphenol with ethylene oxide and diethanolamine with coconut oil and perchloroethylene. The textile materials used in the Examples are cotton, 65/35 polyester/ cotton fabric and 50/50 polyester/rayon fabric.
Patent GB-1170077-A (GB)
Title: Cartridge Discharge Device
Inventor: WARNER ALBERT CORYDON
IPC: F42B12/50
Filed: 1966-11-07
Abstract: 1,170,077. Tear gas gun. A. C. WARNER and M. E. ALLEN. 7 Nov., 1966 [6 Jan., 1966], No. 49762/66. Heading F3C. A tear gas gun 10 comprises a barrel 12 having at least one cylindrical bore (14), (16), 18, 20 and terminating at one end in a muzzle 88 and at the other in a breech. Tear gas cartridges 22 are of the same length as the bore(s) of the barrel and are held against ejection from the bore(s) on firing the gun by a restraining means, e.g., an apertured muzzle plate 90. The muzzle plate is permanently secured to the barrel 12 if the gun is breech loaded and removably secured or secured for rotation on the barrel if the gun is muzzle loaded. In the construction shown the barrel 12 and an integral trigger carrying frame 24 are pivotally connected to a handle frame 28, the gun being held in its closed position by a latch assembly 80. The firing mechanism of the gun comprises a trigger 32 spring urged into its inactive position (as shown), a spring-loaded hammer 38 pivoted on the handle frame 28 and a rotatably mounted firing pin 44 carried by the hammer 38. The firing pin 44 is rotatably mounted such that on successive actuations of the trigger 32, the pin 44 rotates to bring a firing projection 50 thereof into alignment with cartridges in the four bores (14), (16), 18, 20 in turn. The rotation is effected on the rearward movement of the hammer 38 by an elongated dog 62, the top end 60 of which engages in notches 58 on the periphery of the firing pin 44. The rearward movement of the hammer, in turn, is effected by the trigger 24 co-operating with a sear 66 which is pivotally mounted on the hammer 38, the rearward movement of the trigger, sear, hammer combination taking place until the sear 66 slides out of engagement with a shoulder 70 of the trigger where the hammer is urged forwardly to fire the gun. In a muzzle loaded, multiple bore construction the muzzle plate may be slipped over and moved relatively to a projection means screwed in the barrel to effect the mounting thereof, the plate being locked in position by a spring-loaded ball (Figs. 7, 8, 9, not shown). The plate may be rotatably mounted on the barrel such that in one position apices of the plate partly obstruct the bores of the barrel and in another position the bores are opened (Figs. 10, 11, 12, 13, not shown). A single bore breech loading gun (Figs. 19, 15, not shown) and a single bore muzzle loading gun (Figs. 16, 17, 18, not shown) are disclosed, the firing pin in these cases being non-rotatably mounted in the hammer. In a further multi-bore barrel the enlarged head of a screw forms an obstruction for parts of the bores (Figs. 19, 20, 21, not shown). The trigger 32 is provided with an indicia M such that, on actuation of the trigger up to the point where the indicia M coincides with the edge of the trigger guard the firing projection 50 is aligned with part of the barrel of the gun and is therefore in a safety position.
Patent GB-1138780-A (GB)
Title: Multi-stage flash evaporation system and method
IPC: B01D3/06
Filed: 1967-11-06
Abstract: 1,138,780. Evaporators, multi-stage flash type; desalination of water. WESTING- HOUSE ELECTRIC CORP. 6 Nov., 1967 [21 Dec., 1966], No. 50320/67. Heading B1B. In an evaporator comprising a plurality of flash chambers A . . . D connected in series, each chamber being maintained at a lower pressure than the preceding one, the feed liquid, e.g. sea water, is initially introduced, via heat-exchange tubes 42, 43 and deaeration vessel 51, into the chamber D of lowest pressure from which mixed liquid is withdrawn through line 57 and passed through heatexchange tubes 40,39 and external heater 59 into the chamber A of highest pressure, and a conduit 63 leads some of the liquid from an intermediate chamber C into a flash cooler 64 from which residual liquid (brine) is discharged from the system by pump 66. Sea water is pumped through line 44 and heat exchange tubes 43, 42, part of the water being then rejected through line 46, and the remainder flowing through line 47, wherein it is treated with sulphuric acid before entering deaeration vessel 51. The partially de-aerated water next flows into chamber D where it is further de-aerated and mixes with the brine in the lower part of the chamber. The mixture is pumped through line 57 and heat-exchange tubes 41, 40, 39 and heater 59 into chamber A, and flows through chambers A . . . D via orifices in partitions 17, 18, 19. Part of the water is flashed into vapour in each chamber, and the vapours are condensed on tubes 39 . . . 43, the condensate (i.e. potable water) being collected in trays 29 . . . 33 and withdrawn from the system through line 38. Flash cooler 64 is maintained at substantially the same pressure as chamber D. The rate of withdrawal of brine from chamber C into cooler 64 is controlled by valve 70 which is actuated by liquid-level sensing device in chamber D. The vapours flashed off in cooler 64 flow through line 67 into de-aerator 51, and a mixture vapour and gases flows from the latter through line 68 into the condensing space 28 of chamber D, which is vented to an air ejector by an outlet 36. In an alternative apparatus (Fig. 2, not shown), the vapour space of cooler 64 is connected in parallel to de-aerator 51 and the condenser space 28 of chamber D; and the top of the de-aerator is connected to an air ejector. It is stated that flash cooler 64 may be disposed within chamber D.