baber/WOPTO huggingface dataset:
Patent GB-325333-A (GB)
Title: Improvements in or relating to a safety-appliance for closed vehicles
IPC: B60J9/02
Filed: 1928-12-19
Abstract: 325,333. Blank, P. Dec. 19, 1028. Emergency-exits.-Closed vehicle are provided with a flap in the wall winch is adapted to open when the vehicle overturns or inclines beyond a predetermined amount. The flap is pivoted as shown about an axis 2 and is provided with pendent. counterweights 3 suspended from brackets 2 by means of rods 16 having elongated eyes and a spring 5 to prevent rattling. The weights 3 are normally supported on bent rails 4 secured to the fixed sides of the vehicle and are provided with pins 11 engaging in slots in members 6 which are connected to the locking members 9, 12 by a. cable 8. When the vehicle inclines sufficiently the weights ride off the mils and unlock the lock. ing members 9, 12 by means of the cable 8 and cause the flap to rotate as shown in Fig. 3.
Patent GB-1310426-A (GB)
Title: Device for metering pulverulent loose material
IPC: G03G15/08
Filed: 1970-08-04
Abstract: 1310426 Reciprocating agitators KALLE AG 4 Aug 1970 [6 Aug 1969] 37587/70 Heading B1C [Also in Division B8] In a device for dispensing pulverulent material, e.g. toner powder, a drive shaft 9 for a metering roll 8 has a wobble plate 18 secured thereon, which plate together with compression spring 20 effects reciprocation of a rod 16 carrying agitating arms 17 and journalled in opposite walls 7,_7a of a hopper. Rotation of the rod 16 is prevented by a pin 21 extending between fixed pins 23 (only one being shown).
Patent GB-1383129-A (GB)
Title: Fibre- and film-forming polymers
Inventor: PENISSON RENE
IPC: C08G18/00
Filed: 1973-08-08
Abstract: 1383129 Polyphenylene oxamide films and fibres RHONE-POULENC-TEXTILE 8 Aug 1973 [9 Aug 1972 28 May 1973] 37620/73 Heading B5B [Also in Division C3]  Films or fibres are formed from polyphenylene oxamide obtained by reacting p-phenylene diisocyanate with oxalic acid in an anhydrous polar aprotic solvent (see Division C3). The fibres are preferably formed by wet spinning either directly from the resulting solution or after redissolving the isolated polymer in H 2 SO 4 . The wet spun fibres and films may be subsequently stretched in a ratio of 1À2 to 2À0 and then heat-treated at 300 to 400 C. under 0À8 to 1À2 g./tex. and optionally further stretched at a ratio of 1 to 1À5 at this temperature. Examples describe the spinning, stretching and heat treatment of the polymers and also, for comparison, of a similarly prepared polymer from 4,4<SP>1</SP>-diphenylene methane diisocyanate.
Patent GB-1362862-A (GB)
Title: Pressurised fluid dispenser
IPC: B65D83/14
Filed: 1971-08-11
Abstract: 1362862 Pressurized fluid dispensers; ejectors A S LAERDAL 11 Aug 1971 [11 Aug 1970] 37785/71 Headings F1E and F1R A pressurized fluid dispensing container comprises an outer container 1 provided with springs 10, 14 and a pressurized fluid vessel 2 the outlet valve 5 of which rests against an abutment member 3 so that axial expansion of the vessel 2 due to an increase in pressure caused by over heating causes the valve 5 to be actuated and the pressure relieved. The outlet valve 5 is actuated when required by rotation of a knob 8 screw threaded into the bottom of the outer container 1. The member 3 is in the form of an injector and suction container 4 is mounted on the injector 3 so that the apparatus can be used to produce suction. A heating coil 17 operated by a battery 15 may be provided to compensate for cooling of the vessel 2 during discharge. A scale and marking are provided on the vessel 2 and container 1 respectively so that with the suction container 4 and injector 3 removed and the vessel 2 resting on spring 10 the weight of the remaining contents may be determined.
Patent GB-1061982-A (GB)
Title: Improvements relating to coated pigment particles
IPC: C08F2/44
Filed: 1963-09-26
Abstract: A method for providing an organic polymer surface layer coating on individual particles of a finely divided and dispersed water insoluble pigment, comprises dispersing in an aqueous slurry of said pigment an emulsified water immiscible organic liquid consisting of ethylenically unsaturated monomer or monomers which will form the organic polymer coating, and effecting polymerization of the monomer or monomers on sand pigment particles while heating and agitating said slurry.  Cross-linking agents, e.g. ethylene glycol dimethacrylate, may be added to obtain an inert and insoluble coating.  Ethylenically unsaturated monomers which are not inherently water soluble may be temporarily insolubilized, e.g. by the addition of sodium sulphate.  Coloured coatings may be obtained by adding to the water-immiscible phase a dye, e.g. a base or acidic dye which will chemically combine with one of the monomers.  Pigments exemplified are titanium dioxide, zinc oxide, talc, aluminium oxide, chromic oxide, barium sulphate, copper dust and even shredded paper.ALSO:A method for providing an organic polymer surface layer coating on individual particles of a finely divided and dispersed water-insoluble pigment, comprises dispersing in an aqueous slurry of said pigment an emulsified water-immiscible organic liquid consisting of ethylenically unsaturated monomer or monomers which will form the organic polymer coating, and effecting polymerization of the monomer or monomers on said pigment particles while heating and agitating said slurry.  Cross-linking agents, e.g. ethylene glycol dimethacrylate, may be added to obtain an inert and insoluble coating. Ethylenically unsaturated monomers which are not inherently water-soluble may be temporarily insolubilized, e.g. by the addition of sodium sulphate.  Coloured coatings may be obtained by adding to the water-immiscible phase a dye, e.g. a basic or acidic dye which will chemically combine with one of the monomers. Ethylenically unsaturated monomers exemplified are butyl methacrylate, oleyl methacrylate, abitol methacrylate, diethyl amino ethyl acrylate, hydroxy ethyl methacrylate, N-methyl vinyl acetamide, N-vinyl pyrrolidone, N-methyl-N-vinyl acetamide and methacrylic acid. Pigments exemplified are titanium dioxide, zinc oxide, talc, aluminium oxide, chromic oxide, copper dust and even shredded paper.
Patent GB-1092835-A (GB)
Title: Sign-indicating glow-discharge tube
Inventor: HAUSSLER EMIL
IPC: H01J17/49
Filed: 1965-09-06
Abstract: 1,092,835. Glow discharge lamps. WERK. FUR FERNSEHELEKTRONIK VEB. Sept. 6, 1965, No. 37918/65. Heading H1D. An indicator tube includes a stack of digit cathodes, each having a lead extending to adjacent a corresponding one of the discharge paths of a sequence tube arrangement housed in a second portion of the same envelope, whereby the stepping of the sequence tube discharge from one to another of its cathodes by an incoming pulse causes, by reason of the potential change produced by the stepped discharge at the corresponding digit cathode lead, a transfer of the indicator tube discharge from one to the other of the two associated digit cathodes. Leads 5, Fig. 1, from digit cathodes 3 mounted within an apertured anode 1 pass through the ceramic disc 6 and their ends are arranged in a circle concentric with the main electrodes 8, guide electrodes 10, and anode 7, of the sequence tube arrangement. The work function of the material of the digit cathodes 3 is lower than that of the main cathodes 8.
Patent GB-957437-A (GB)
Title: A method for the determination of a virus count
IPC: C12N7/02
Filed: 1960-11-04
Abstract: A process for the production of virus vaccines and virus suspensions with a reproducible virus content is characterized in that the protein content of the vaccine or virus suspension is determined by the sulphosalicylic acid test, a sample of the suspension is then subjected to dialysis to remove substantially all the ions present, is concentrated and the virus content of said sample determined refractometrically, the corrected refractometer values being obtained as the difference between the refractive indices of distilled water and that of a control fluid which has been produced from the amount of protein, if any, in the vaccine or virus suspension, and distilled water, whereupon the main solution or suspension is correspondingly diluted or concentrated to the desired virus content.  The dialysis may be carried out in two stages, the final stage being carried out in an electrodialysis apparatus.  Concentration may be carried out by means of a rotating vacuum evaporator at a temperature not exceeding 50  DEG C.ALSO:A process for the production of virus vaccines and virus suspensions with a reproducible virus content is characterized in that the protein content of the vaccine or virus suspension is determined by the sulphosalicylic acid test, a sample of the suspension is then subjected to dialysis to remove substantially all the ions present, is concentrated and the virus content of said sample determined refractometrically, the corrected refractometric values being obtained as the difference between the refractive indices of distilled water and that of a control fluid which has been produced from the amount of protein, if any, in the vaccine or virus suspension, and distilled water, whereupon the main solution or suspension is correspondingly diluted or concentrated to the desired virus content.  The dialysis may be carried out in two stages, the final stage being carried out in an electrodialysis apparatus. Concentration may be carried out by means of a rotating vacuum evaporator at a temperature not exceeding 50 DEG  C.
Patent GB-1383285-A (GB)
Title: Phosphate coatings on iron and steel
IPC: C23C22/13
Filed: 1973-08-13
Abstract: 1383285 Phosphate coating iron and steel PYRENE CHEMICAL SERVICES Ltd 13 Aug 1973 [16 Aug 1972] 38230/73 Heading C7U In the phosphating of iron and steel by immersion in an acid nitrate-accelerated zinc phosphate solution at 80-98‹C, the bath solution is replennished with an aqueous acid concentrate in which the wt. ratio NO 3 : P 2 O 5  is 0.6-1.5, the wt. ratio free P 2 O 5 : total P 2 O 5  is 0.45-0.75 and the total wt. concentration P 2 O 5  + Zn + NO 3  is more than 47%, and the total acid point number is maintained at 20-100 and the free P 2 O 5 : total P 2 O 5  ratio at 0.35-0.6 in the phosphating bath. The initial concentrate for the bath may comprise, by weight; NO 3  : P 2 O 5  = 0.5-2.0, free P 2 O 5 : total P 2 O 5  = 0.4-0.75 and P 2 O 5  + Zn + NO 3  > 47%. The zinc may be added as the metal, ZnO, ZnCO 3 , Zn(NO 3 ) 2  or Zn 3 (PO 4 ) 2 ; the P 2 O 5  may be derived from H 3 PO 4  or Zn 3 (PO 4 ) 2  and the NO 3  may be added as HNO 3  or Zn(NO 3 ) 2 . Other additives are Fe<SP>2+</SP>, urea, Cu, Ni, Na, NH 4 , Ca, F, SO 4  and Cl. The steel may be alkali cleaned, acid pickled and rinsed before phosphating.
Patent GB-883312-A (GB)
Title: Improvements in or relating to the production of linear aromatic polyesters
Inventor: CONIX ANDRE JAN
IPC: C08G63/672
Filed: 1956-12-14
Abstract: Linear aromatic polyesters, suitable for the manufacture of film and fibres, are made by heating together (a) a diester of a bis-phenol or a mixture of a bis-phenol and a substance which reacts therewith to form such a diester and (b) an aromatic dicarboxylic acid having two phenylene rings or a chemically equivalent derivative thereof (e.g. an ester or anhydride); at least one of the two reactants having its two phenylene rings linked by a substituted methylene group or by means of a carbon atom forming part of a cycloaliphatic ring. Reaction may be effected in the absence or presence of a solvent (e.g. alphamethylnaphthalene, diphenyl or diphenyl oxide) or a catalyst (e.g. butyl titanate, antimony trioxide or a mixture of p-toluene sulphonic acid and antimony trioxide).  Preferably the bis-phenols and dicarboxylic acid are respectively of formula <FORM:0883312/IV (a)/1> and <FORM:0883312/IV (a)/2> wherein one of the R and R1 linkages represents an alkyl or aryl substituted methylene group or a carbon atom forming part of a cycloaliphatic ring and the other of R and R1 also represents such a linkage or represents an oxygen atom, a carboxyl group or an unsubstituted methylene group.  The Specification contains lists of suitable reactants.  The polyesters are soluble in methylene chloride, chloroform, dichloroethane, tetrachloroethane, dioxane and tetrahydrofurane.  Examples describe the manufacture of polyesters from (1), (2), (3) and (6). The diacetate of bisphenol A and 2,2-(4,41-dicarboxydiphenyl) propane, 4,41-dicarboxy diphenyl methane or 4,41-dicarboxy diphenyloxide; (4) The diacetate of 1-phenyl-1,1-(4,4-dihydroxydiphenyl) methane and 2,2-(4.4-dicarboxydiphenyl) propane; (5) The diacetate of 4,41-dihydroxydiphenyl-1,1-cyclohexane and 2,2-(4,41-dicarboxydiphenyl) propane.  Specification 621,102 is referred to.
Patent GB-303375-A (GB)
Title: Manufacture of products of the anthracene series
IPC: C09B3/04
Filed: 1928-12-31
Abstract: 303,375. I. G. Farbenindustrie Akt.- Ges. Dec. 30, 1927, [Convention date]. Samples furnished. Benzanthrone derivatives.-Derivatives of the anthracene series are obtained by treating 2-anaphthoyl-benzoic acid or its derivatives with aluminium chloride in the presence or absence of an organic or inorganic melting agent at a temperature of about 80‹ C. to 130‹ C. Higher temperatures are to be avoided, since they lead to the formation of naphthanthraquinone. The products, unlike the naphthanthraquinones, do not form a vat with alkaline hydrosulphite, and appear to be derivatives of dihydrobenzanthrone, that obtained from 2-a-naphthoylbenzoic acid itself having the probable formula According to examples, (1) 2-alpha-naphthoylbenzoic acid or its sodium salt is fused with sodium and aluminium chlorides at about 100‹ C. in an atmosphere of nitrogen; the product is separated from any naphthanthraquinone that may have been formed by vatting with alkaline hydrosulphite, and (2) the process of example 1 is carried out in a suspension of aluminium chloride in trichlorbenzene at 100‹ C. The Specification as open to inspection under Sect. 91 (3) (a) contains an additional example in which 2-(1<1> : 4<1>-methylnaphthoyl)-benzoic acid is fused with aluminium and sodium chlorides at about 110‹ C. and the product is vatted with sodium hydrosulphite to remove any 2-methylnaphthanthraquinone which may have been formed. This subject-matter does not appear in the Specification as accepted. Benzanthrone dyes. - The above products having the Bz 1- and 2-positions free are converted into vat dyes by fusing with a caustic alkali at a temperature of about 230‹ C. to 260‹ C. In a.n example, the product from 2-alphanaphthoylbenzoic acid is fused with caustic potash: the resulting dyestuff gives a reddishviolet vat showing intense red fluorescence, and dyes cotton in violet tints which change to blue on exposure to the air.
Patent GB-861707-A (GB)
Title: Arc lamp
IPC: H05B31/00
Filed: 1957-12-12
Abstract: 861,707. Electromagnetic relays. STRONG ELECTRIC CORPORATION. Dec. 12, 1957 [Oct. 3, 1957], No. 38643/57. Class 38 (5). [Also in Groups XXXV and XL (a)] An inductive relay for automatically controlling the electrode feed of an A.C. arc lamp (see Group XXXV) consists of a soft-iron core 156 carrying opposed arc current and arc voltage coils 185, 191, respectively, the core being encircled by an aluminium (or copper or brass) vane which is pivoted at 160 and which carries a pair of contacts 176, 178 on resilient brass arms. The moving contacts 176, 178 co-operate with pre-set contacts 169, 170 to energize a motor in forward or reverse direction. Energization of the motor also energizes winding 187 or 189 in a sense tending to open whichever contact has just closed.
Patent GB-1085374-A (GB)
Title: Improvements in or relating to valves
Inventor: ADAMS FREDERICK JOHN
IPC: F16K11/07
Filed: 1965-09-10
Abstract: 1,085,374. Valves. HYDROSTEER Ltd. Sept. 2, 1966 [Sept. 10, 1965], No. 38700/65. Heading F2V. A spool valve 2 has a threaded extension 3 on the outer end of which is a lock nut 17 that passes through an opening in a nut 15 on a threaded extension of the valve housing 5. Washers 11, 12 abut shoulders 14a and 13 on the nut 15 and housing 5, respectively; the lock nut 17 also coacts with the washer 11 and the spool with the washer 12. The spool is loaded to the position shown by a spring between the washers; a protective covering 20 encloses the nuts. Axial displacement of the spool in one direction causes the spring to be compressed between the lock nut 17 and washer 13 abutting the housing 5; reverse movement of the spool compresses the spring between nut 15 and the washer 13 abutting the spool. The spring pre-loading is varied by the lock nut 17. The relative positioning of spool land faces 9 and the housing grooves 8 is adjustable by altering the axial intrusion of the extension 3 in the spool. Th elatter adjustment may be dispensed with, as may also the washers 11, 12.
Patent GB-347101-A (GB)
Title: Process for decreasing the inflammability of organic nitro compounds
IPC: B27K3/50
Filed: 1929-12-17
Abstract: The inflammability of organic aromatic nitro compounds, for example nitro-benzaldehydes, nitro-benzoic acids and nitro-phenols and their salts such as sodium-p-nitrophenolate and sodium 2 : 4-dinitrophenolate, is lowered by intimately incorporating therewith organic acid amides such as acetamide, urea and urethane.
Patent GB-346806-A (GB)
Title: Improvements in the manufacture of organic substitution derivatives of cellulose
IPC: C08B11/04
Filed: 1929-12-18
Abstract: Halogen-containing ethers of cellulose are produced by reacting on cellulose with an aliphatic etherifying agent containing a halogen atom or atoms in addition to the etherifying atoms or group. Suitable reagents specified are epichlorhydrin, ethylene chlorobromide, 2,2-dichlor-1-bromethane, 1-chlor-2-iodoethane, 2-chlor-1-brompropane, 3-chlor-1-brompropane.  When using reagents containing an alkylene oxide group, the etherification is effected in the absence of alkali, but when halogen is used as the etherifying atom bases, preferably inorganic, such as 40-50 per cent caustic alkali should be present.  Caustic alkali may be used in at least sufficient quantity to form a concentrated solution with any water present.  As starting materials for the process, the following may be employed, cotton, regenerated artificial fibres, or wood pulps, preferably chemical wood pulps, these materials being preferably subjected to pretreatment with organic acids, caustic alkali, mineral acids, or a combination of any of the above.  In examples (1) cotton linters or purified wood pulp are treated with caustic soda and ethylene chlorobromide in two or more stages, the product washed with alcohol and dried; (2) wood pulp which has been pretreated by any of the processes referred to above, is washed with alcohol, and caused to react with epichlorhydrin.  The products may be treated with ammonia or with organic amines so as to obtain amino ethers which have an affinity for acid dyestuffs. Specifications 187,639, 249,173, 263,938, [all in Class 2 (ii), Cellulose &c.], 344,480, and 344,529 are referred to.
Patent GB-921133-A (GB)
Title: Film extrusion apparatus
IPC: B29C48/08
Filed: 1961-10-31
Abstract: <P\1><P\2> A film extrusion apparatus comprises a body section, at least two opposite orifice-defining lips, at least one of which is slidable relative to the body, a plurality of adjusters spaced along the length of the slidable lip to regulate the contour of the orifice, and a pair of end-blocks defining the ends of said orifice. Each endblock has two legs, each connected to opposite lips.  The legs of the end-blocks connected to slidable lips are dimensioned by the formula <F\1> where Le is the bending length of the leg (Fig. 1). he is the height of the leg in the direction of bending.  HL is the height of the slidable lip in the direction of bending.  a is the distance between adjusters.  e is the distance from the end adjuster to the effective end of the slidable lip.  The end-blocks have the same width, perpendicular to the plane of bending, as the slidable lip. Le is usually 0,25 a to a, and may be equal to 1/2 (a-e) or 2/3 (a-e).  The adjusters along each slidable lip may be exactly opposite each other, or staggered.  When only one lip is slidable the legs of the end-blocks not attached thereto are attached to the opposite lip through the body section.  In an extruder having two slidable lips A and B of width W (Figs. 1 and 2), equally spaced adjusters 1 are staggered along both lips.  The extrusion substance is extruded from reservoir 6, in the body section, through elongated orifice 7. End-block 2 is fastened to the body section by bolt 5 and comprises two legs A and B separated by slot 3 which extends the entire width of end-block 2 and is preferably offset from the centre line of the orifice 7 to maintain sealing pressure against gasket 8.  The end-blocks of the invention simulate an infinitely long lip and gives the end adjusters characteristics equivalent to the other adjusters, thus enabling the gauge of an extruded film, particularly at the ends, to be accurately controlled.
Patent GB-984308-A (GB)
Title: Workholder arrangement for machine tools
Inventor: JENNINGS RICHARD ARTHUR
IPC: B23Q7/02
Filed: 1962-10-18
Abstract: 984,308. Machine tool details. JOHN ACKWORTHIE Ltd. Oct. 18, 1963 [Oct. 18, 1962; May 22, 1963], Nos. 39387/62 and 20300/63. Headings B3B, B3C and B3N. A drilling or tapping machine comprises a rotary indexable work-table, having a number of circumferentially spaced work-holders, each of which is automatically opened to release the work at an unloading station, and automatically closed on a new workpiece at a loading station. The machine has a base 1, the worktable 2 indexed by a device 3, and drilling or tapping heads 5. The work-table 2 carries a plate 6 on which is mounted the work-holders 8. Each work-holder comprises a pair of arms 10, having semi-circular jaws 12 clamped therein by screws 14, the arms being pivoted in a block 15 at 16. Screws 20 in the arms are urged into engagement with a cam 19 by a spring 21, and the cam is carried by a vertical spindle 22, the lower end of which is connected to a lever 24 urged by a spring 25 to close jaws 12. Spindle 22 is fitted with an arm 27 having a follower roller 28 which co-operates with a cam 30, associated with a pneumatic or hydraulic piston 31. The cam 30 is pivotally mounted in a fixed bracket 32 at 34, to permit of limited angular movement, and a pin 36 on the cam rests in contact with the head 37 of piston 31. The loading position is marked A, Fig. 2, the unloading position is marked B, and the workholder at C is approaching position B. In operation, roller 28 of the work-holder at C engages face 35 of cam 30, and as the work-holder moves to position B, the roller rides up on the cam and causes cam 19 and spring 21 to open jaws 12. There is a dwell period between positions B and A, and at the latter position cam 30 is moved a small angular amount by piston 31, thus disengaging roller 28 from cam 30, and jaws 12 are closed. The energization of piston 31 is controlled in synchronism with indexing device 3, and the workpiece may be ejected at position B by a plunger 43, also operating in synchronism with device 3. The workpieces may be automatically supplied from a hopper or shoot. Specification 957,930 is referred to.