baber/WOPTO huggingface dataset:
Patent GB-660502-A (GB)
Title: Record material for producing visible marks under pressure and method of manufacture thereof
IPC: B01J13/02
Filed: 1949-06-13
Abstract: 660,502. Pressure - sensitive recording materials. NATIONAL CASH REGISTER CO. June 13, 1949 [July 13, 1948 ; July 13, 1948], Nos. 15633/49 and 15634/49. Drawings to Specification. Classes 96 and 140. [Also in Group XV] Paper, cardboard, glass, metal, or wood is coated with a solid film, e.g. of methyl cellulose, polyvinyl alcohol, casein, synthetic latex, starch, or a mixture of starch, 'casein, and a butadiene copolymer containing, insulated from each other, particles of solid, and droplets of liquid which produce a colour effect when they contact each other e.g. under pressure, e.g. on typing, which ruptures the binder. The liquid reactant may be crystal violet lactone,malachite green lactone, tetrachloro malachite green lactone, 3,3 - bis - (p - diethylaminophenyl) - 6 - di - methylaminophthalide, or 2,4-bis-[p-(dimethylamino - phenylazo) - anilino] - 6 - hydroxy sym.- triazine, in a non-evaporating, oily solvent, e.g. chlorinated diphenyl. The solid reactant may be attapulgite, halloysite, magnesium trisilicate, or a sodium aluminium silicate zeolite, or a synthetic zeolite in which a cation of a naturallyoccurring compound has been replaced by nickel, copper, iron, zinc, mercury, barium, lead, cadmium, or potassium. In an example, paper is coated with the liquid colour-reactant in gelatin, wetted with water containing formaldehyde and a wetting agent, dried and a top coating of starch and attapulgite clay applied. Specification 628,960 is referred to.
Patent GB-1409771-A (GB)
Title: 7-amino-decahydro-quinolines process for their manufacture and their use
IPC: C08K5/3412
Filed: 1973-04-02
Abstract: 1409771 Curing epoxy resins CIBA-GEIGY AG 2 April 1973 [4 April 1972] 15639/73 Heading C3B [Also in Division C2] Curable mixtures comprise a polyepoxide compound containing an average of more than one epoxy group per molecule and a 7-aminodecahydroquinoline of the formula wherein R = H or an optionally substituted alkyl radical with 1-5 C atoms, and R<SP>1</SP> = H or CH 3 ; In examples, R=H, CH 3  and γ-aminopropyl, and R<SP>1</SP> = H. Specific polyepoxides are those with an average of more than one glycidyl group, #-methylglycidyl group or 2,3-epoxycyclopentyl group bonded to a hetero-atom, e.g. S, N or O; examples are polyglycidyl ether resins manufactured by condensation of 2,2-bis- (p - hydroxyphenyl)propane or 2,2 - bis - (phydroxycyclohexyl)propane with epichlorhydrin, and tetrahydrophthalic acid glycidyl ester. The epoxide groups may be partially esterified, e.g. with higher unsaturated fatty acids. The mixtures may also comprise other epoxide compounds, other curable resins, fillers, plasticizers, flow control agents, accelerators and solvents, and they may be cured at 20-160‹ C., in two stages if desired.
Patent GB-386862-A (GB)
Title: Improvements in smokers' ash trays
IPC: A24F19/00
Filed: 1932-06-04
Abstract: 386,862. Ash-trays &c. MORTON & PERKS, Ltd. and WILSON, J. H., 7, New Spring Street, Birmingham. June 4, 1932, No. 15712. [Class 130.] Cigarettes are extinguished by insertion in the sloping and tapered grooves 4 of a plate 3 which is supported in a transverse slot in a knob 5.
Patent GB-990154-A (GB)
Title: Dispersion polymerisation
Inventor: OSMOND DESMOND WILFRID JOHN
IPC: C08F2/22
Filed: 1960-05-04
Abstract: Free-flowing dispersions of polar synthetic polymer in organic liquid in which the polymer is insoluble are made by polymerizing ethylenically unsaturated monomer in the presence of a solvated constituent which would tend to form block or graft copolymer with the monomer in excess of the amount required to stabilize the disperse polymer, the formation of block copolymer being retarded by the presence in the solution of an organic chain transfer agent which can render free radicals in the solvated constituent or in block or graft copolymer incapable of reacting with monomer.  The chain transfer agent may be added after the initial stage of the process, which is applied particularly to acrylic and methacrylic acids, esters, amides and nitriles.  Chain transfer agents specified are isopropyl, octyl and tert.-dodecyl mercaptans, allyl alcohol, alloocimene and myrcene.  Block or graft copolymer-forming constituents specified are degraded rubber and polybutadiene of substantially 1,4-addition. The dispersions are used as coating compositions, for which purpose they may have added thereto titanium dioxide, dibutyl phthalate and a polysiloxane.  Specification 941,305 is referred to.ALSO:Glass panels are coated, e.g. by spraying with a dispersion obtained by polymerizing methyl methacrylate in white spirit containing degraded rubber to stabilize the dispersion and an organic chain transfer agent, and then adding thereto dibutyl phthalate, titanium dioxide and a liquid polysiloxane.  After application, the coated glass is heated at 127  DEG C. for 1/2 hour. Specification 941,305 is referred to.
Patent GB-741650-A (GB)
Title: Objects made from acetylated paper
IPC: C08L1/12
Filed: 1952-05-20
Abstract: 741,650. Paper for strings, ropes or sacks, &c. SANDOZ, Ltd. May 20, 1952 [May 25, 1951], No. 15881/55. Divided out of 737,920. Class 96. Strings, ropes, sacks and bags are made from paper, the fibres of which have been acetylated in the manner disclosed in the original Specification. Specifications 525,265 and 535,932, [both in Group IV], are referred to.
Patent GB-119731-A (GB)
Title: An Improved System of and Apparatus for Operating Railway Switch Points and the like.
Inventor: O'DONNELL JOHN PATRICK
IPC: B61L5/06
Filed: 1917-10-31
Abstract: 119,731. O'Donnell, J. P. Oct. 31, 1917. Electric operation and control-Railway switch points situated at a long distance from the controlling station are actuated by a low-voltage electric motor which receives current from a battery, situated near to the points, through control relays adapted to be operated bv a small current supplied through line wires. In the system described, the local batteries are connected to their respective motors when the coils of the control relays are energized from the line. Upon the completion of the points movement in either direction, the electric connexions are reversed and an indication current sent to the indicators at the controlling station. Fig. 1 shows a plan of a point operating, locking, and detecting mechanism for use in connexion with the low-voltage motor 15. The rotation of the motor operates, in the known manner, the point-operating .slide 13, locking bar 12, and detector blade 14. The contacts A, B, C, D controlling the connexions of the motor, detectors, &c. are opened and closed by means of contacts a, b, d, d<2> mounted on but insulated from a plate 10, Figs. 1 and 2, adapted to slide on transverse rods 11. The movements of the contact plate are effected by the locking- bar 12 and detector blade 14 through the tail piece 31, " butterfly " cam 29, and arm 32 all mounted on the vertical spindle 30. The member 36 is pivotally mounted so as to be swung by the detector blade 14 to engage either wing of the cam 29. The shoulders 12<c> on the enlarged part of the locking-bar engage the member 36 in either position and force it against the corresponding wing so as to reverse the electric connexions at the end of the points movement. The points &c. may be manipulated by a hand-lever on the squared spindle 27; the hand-lever being normally inserted in the key hole slot 24 and turned so as to cause the contact 22 to complete the electric connexion to the line wire.
Patent GB-238195-A (GB)
Title: Improvements in and relating to percussion fuses for projectiles
IPC: F42C15/24
Filed: 1925-06-19
Abstract: 238,195. Schneider et Cie. Aug. 11, 1924, [Convention date]. Projectile, fuzes.-A combined momentum and direct-action fuze of the kind described in Specification 172,326, and comprising a striker pin I and a detonator D held away from each other by a spring F and a washer E having projecting ears e, is first mounted within a liner G, the washer being deflected by a thin metal strip H as shown in Fig. 3, to permit its passage through the aperture g in the bottom of the liner G. The fuze with its liner is then inserted in the fuze body A, Fig. 1. and secured by the transverse pin J. The liner is also secured by expansion into a groove a; or the lip of the fuze body is crimped over the end of the liner.
Patent GB-110938-A (GB)
Title: Improvements in or relating to Thermostats.
Inventor: GRUNDY HERBERT HAMILTON
IPC: G01K5/62
Filed: 1916-11-07
Abstract: 110,938. Grundy, H. H. Nov. 7, 1916. Addition to 5311/12. Thermostats.-The operating member described in the parent Specification is now in the form of a single bi-metallic strip and is adapted when bent or flexed to trip initially a rocking member constructed so that it overbalances when so tripped. The thermostat proper consists of a single bi-metallic arm A secured to the block E<3> and having a pin A<1> adapted to engage a bifurcated arm B attached to vessel D containing mercury and an inert gas. When the pin has moved the arm B from the position shown in Fig. 1 to just over the horizontal position, the mercury causes the vessel D to overbalance and make the necessary contact for controlling the thermal supply. The vessel D is strapped to a block C' carried by the rotatable spindle C while the plate E<1> is mounted to turn on the support E. A modification is described in which similar apparatus is applied to a boiler or cylinder. In order to control the size of the gap B<1> in the member B the adjusting means shown in Figs. 17 and 18 are fitted.
Patent GB-577877-A (GB)
Title: Manufacture of monobrominated dibasic acids and esters thereof
IPC: C07C69/34
Filed: 1944-08-21
Abstract: Dialkyl esters of a -bromo-dibasic acids are prepared by heating a compound of general formula COOR-(CH2)n-COX, where R is an alkyl group, X is a halogen and n is a positive integer greater than three, with slightly more than one molecular proportion of bromine in the presence of red phosphorus and then completely removing excess bromine and reacting the a -bromo-acid p  halide with an alcohol. The dialkyl ester may be hydrolysed to the acid.  In the example, ethyl hydrogen pimelate is refluxed with thionyl chloride and the latter evaporated off.  The acid chloride, so formed, is brominated as above, excess bromine removed by reducing the pressure, and the product added to cold absolute ethyl alcohol giving diethyl a -bromopimelate.  Diethyl a -bromoadipate may be prepared in a similar way from ethyl hydrogen adipate.
Patent GB-185833-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02M69/00
Filed: 1921-06-10
Abstract: 185,833. Darling, C. S. June 10, 1921. Cylinders receiving liquid fuel.-In engines in which liquid fuel is expelled from a small chamber into the cylinder by the combustion of part of it, the chamber is detachably secured to the face of the piston so that it may be interchanged to suit different fuel. Fig. 4 show a two-stroke-cycle engine with a chamber C<3> which is continuously open to the cylinder through a port C<4> and is scavenged by air entering through the passage D<1> before fuel enters through the passage E. In a modification the chamber is closed to the cylinder by a spring loaded valve which opens inwards.
Patent GB-1391983-A (GB)
Title: Flexible skirts for ground-effect machines
IPC: B60V1/16
Filed: 1972-04-06
Abstract: 1391983 Air cushion vehicles A GRIHANGNE 6 April 1972 [9 April 1971] 16042/72 Heading B7K An air cushion vehicle has a cushion enclcsing skirt formed by contiguous, connected cells 100 each having opposed walls 101, 102 which, when inflated, form a cell which is lenticular in shape in plan view and frusto-conical in elevation, air for forming a curtain and the cushion being discharged through the cells. The cells may be connected together by fabric panels or gussets (Fig. 1a, not shown) or by mechanical connections (Figs. 1h, 1j, not shown). The cell panels may have edge reinforcements and be bolted to the vehicle structure (Fig. 2m, not shown).
Patent GB-760785-A (GB)
Title: Improvements in or relating to telescopically adjustable props, tie rods and the like
IPC: E04G25/08
Filed: 1951-07-06
Abstract: 760,785. Friction grip fastenings. BELLMANN, E. July 6. 1951 [July 6, 1950], No. 16047/51. Class 44. [Also in Groups X and XXIV] A telescopic pit prop, tie rod, &c. comprises an inner member 3 adapted to be clamped by the frictional grip of a flexible sleeve 8 on which acts liquid, gas, rubber or other elastic medium 2 in an annular chamber 4 in the outer member 1 compressed by a screw cap 7 and a bush 6 on the chamber may be within the inner member, Fig. 3. The sleeve 8 is longitudinally slit. The rubber 2 may be formed with an annular chamber containing a gaseous, liquid or other elastic medium. This chamber may be changed after being placed in position, through a valve and the pressure therein increased by a piston which is forced into the chamber. This modification is also shown arranged for the supply of pressure fluid under the part 3. In Fig. 3 the material 2 is contained in the lower part of the inner part 3 which is here made expandible, i.e. thinner, or is slit. The material 2 is compressed by a wedge 18 and rod 17. The inner part 3 may taper towards its lower end.
Patent GB-312812-A (GB)
Title: Fastenings for attache cases, trunks, boxes, bags and the like
IPC: E05B65/50
Filed: 1928-06-02
Abstract: 312,812. Cheney, C. W. June 2, 1928. Hasp fastenings; hasp locks; keyhoces, obstructing, - In hasp looks with a bolt actuated by a hand-operated knob, a hinged cap is used to cover the keyhole. in the knob and also secure the knob against actuation. The cap may be hinged to the knob e or thecasing a. In the former case, Fig, 4, the cap is hinged at f<2> to the knob e provided with a keyhole h, the cap having a finger f<3> engaging a slot in the casing. In a modification the finger is provided on the hinge side of the cap and projects into the knob to engage the casing and force the knob home if insecurely closed when the cap is turned down. When the cap is hinged to the casing, it is impossible to turn the cap down unless the knob is home. Alternatively, the cap may engage the knob, as shown in Fig. 12, to force the knob home when it is turned down.
Patent GB-900236-A (GB)
Title: Improvements in protective circuits for transistor equipment
IPC: G05F1/573
Filed: 1960-05-06
Abstract: 900,236. Protective cut-out arrangements. STANDARD TELEPHONES & CABLES Ltd. May 6, 1960 [May 11, 1959], No. 16154/60. Class 38 (5). A protective arrangement for a transistor through which a load current flows, e.g. a transistor voltage regulator 5, comprises a circuit-breaker 6 connected in the load circuit after the transistor and a capacitor C2 connected across the load circuit after the transistor and before the circuit-breaker, the capacitor C2 having a sufficiently large capacitance that the circuit-breaker has time to operate before the discharge of the capacitor C2 though a short-circuit path permits an excessive voltage to appear across the transistor. Thus in the arrangement shown, in the event of a short circuit between the output terminals 3, 4, the normally charged capacitor C2 discharges through the circuit-breaker and the fault path and prevents the instantaneous application of the full D.C. supply voltage to input terminals 1, 2 across the transistor voltage regulator 5.
Patent GB-777579-A (GB)
Title: Improvements relating to polymers
Inventor: KOWOLIK ERNEST JAN
IPC: C08F265/08
Filed: 1954-06-01
Abstract: Copolymers of a cyano-alkylene and a nitroalkylene are made by copolymerizing a mixture of the monomers in the presence of a polymerization catalyst.  Primary amine groups may be introduced into the copolymer by treating it with hydrogen when reduction of the nitro groups and also some of cyano groups occurs, i.e. vinylamine and allylamine units are introduced into the molecule. The polymerization may be effected in bulk, solution, or aqueous emulsion and the monomers added portionwise.  Graft copolymers may be obtained by the action of nitroalkene radicals on preformed alkylene nitrile polymers or unsaturated nitrile radicals on nitroalkene polymers. The catalyst may be ammonium persulphate, azo-di-isobutyrate, hydrogen, benzoyl, acetyl, lauryl or acetyl benzoyl peroxide, diazoaminobenzene, benzene diazoacetate, benzene diazotriphenylmethane, nitrosoacetanilide, or tetraphenylsuccinonitrile.  Reducing agents such as sulphur dioxide, sulphites, bisulphites, hypophosphites and ferrous salts may be present.  Specified nitroalkenes are nitroethylene, 1-nitropropene, 2 - nitropropene, 2 - nitrobutene - 1, 1 - nitroisobutene - 1, 1 - nitroamylene - 1, and nitrooctylene-1. The cyano alkylene may be acrylonitrile, methacrylonitrile, methylene malonodinitrile, or itaconic acid dinitrile.  In emulsion polymerization the emulsifier may be sodium secondary octadecyl sulphate.  In solution polymerization the solvent may be diethyl ether.  The hydrogenation is preferably effected in an organic solvent solution of the copolymer in the presence of a Raney nickel catalyst.  The solvent may be dimethylformamide, ethylene carbonate, sulpholane, or nitromethane.  The co-polymers may be spun, e.g. by dry or wet spinning, into fibres and filaments which may be dyed with acid or cotton dyes, and oriented by stretching.  The copolymer chains may be crosslinked by treating with phthalic anhydride, adipic acid, di- or poly-isocyanates, or aldehydes such as formaldehyde or glyoxal.
Patent GB-454733-A (GB)
Title: Improvements relating to rivetted joints
IPC: F16B5/04
Filed: 1935-06-04
Abstract: 454,733. Riveted and bolted joints; nuts. MAY, C. H., 144, Holland Park Avenue, Notting Hill, London. June 4, 1935, No. 16249. [Class 83 (iv)] [See also Group XXV] The head of a bolt or rivet is housed in a depression formed in the outermost of the parts to be joined by forcing the material surrounding the rivet hole by pressure on the rivet into a depression of substantially the same shape as the rivet head, formec in a washer located beneath the parts to be joined The material of the plates 1, 2, Fig. 2, to be joined is forced by a tool 7 into a recess in a washer 5, which is backed up by a tool 8. A recess 9, Fig. 3, is thus formed in the plate 1 in which the head 4 of the rivet is housed, and the rivet is upset by a tool 13 to form the head. A bolt 3, Fig. 5, is screw threaded to engage threads in the washer 5, the depressions being formed by relative rotation of the parts, facilitated by a slot 14.
Patent GB-817237-A (GB)
Title: Improvements in or relating to organosilicon compounds
IPC: C07F7/18
Filed: 1957-05-22
Abstract: The invention comprises organosilicon compounds containing at least one unit of the general formula (-SiRR1CH2CH2CH2O-), where R is methyl, ethyl or phenyl and R1 is methyl or ethyl, the compounds being either (a) linear compounds of the formula HO(SiRR1(CH2)3O)xH, where x is an integer, or (b) copolymers of units (-SiRR1(CH2)3O-) and units R <FORM:0817237/IV (a)/1> where R11 is a monovalent hydrocarbon or halogenated hydrocarbon radical and n is 1, 2 or 3, or (c) cyclic compounds of the formula [SiRR1(CH2)3O]x.  The simplest cyclic compound is a silaoxacyclopentane <FORM:0817237/IV (a)/2> R and R1 being both preferably methyl radicals.  When x is 2, the compound is <FORM:0817237/IV (a)/3> The silaoxacyclopentane may be prepared in two ways : (1) heating the disiloxanes [RR1(HOCH2CH2CH2)Si]2O, while immediately removing the water formed; the disiloxanes are themselves prepared by reacting a hydrogensilane RR1SiClH with allyl acetate in the presence of chloroplatinic acid or platinum on finely-divided carbon, hydrolysing the acetoxypropyl substituted diorganochlorosilane produced to yield [RR1(CH3CO.OCH2CH2CH2)Si]2O, and converting this to the corresponding hydroxypropyl derivative by alcoholysis; (2) a diallyloxy silane RR1Si(OCH2CH=CH2)2 is reacted with a disiloxane (RR1HSi)2O in the presence of chloroplatinic acid, and the product is depolymerized by heating with usual cracking catalysts; cyclics (RR1SiO)x are obtained as by-products.  The silaoxacyclopentane polymerizes on standing at room temperature to higher cyclics; if water is present, the linear hydroxy-end-blocked polymers are obtained. Copolymers are obtained by heating any of the above compounds with siloxanes of the formula <FORM:0817237/IV (a)/4> in the presence of a catalyst.  The examples describe the preparation of: (1) 2,2-dimethyl - 2 - sila - 1 - oxa - cyclopentane, higher cyclics and hydroxy-end-blocked polymers thereof; (4) a rubbery copolymer containing the units SiMe2(CH2)3O and Me2SiO, and a liquid copolymer containing the units SiMe2(CH2)3O, Me3SiO0.5, Cl2C6H3MeSiO, MeEtSiO and Me2SiO; (5) a copolymer of SiMe2(CH2)3O and Me2SiO, prepared from (Me2SiH)2O and the product obtained by heating Me2Si(OCH2CH=CH2)2 to 1000 DEG  C. with chloroplatinic acid.  The polymer is depolymerized to the silpentane and (Me2SiO)3 and 4; (6) 2 - phenyl - 2 - ethyl - 2 - sila - 1 - oxa - cyclopentane and cyclic and linear polymers thereof.  Specification 804,097 is referred to.
Patent GB-1429714-A (GB)
Title: Device for the detoxification of waste gases
IPC: F01N3/28
Filed: 1973-04-05
Abstract: 1429714 Catalytic converter KALI-CHEMIE AG 5 April 1973 [7 April 1972] 16420/73 Heading B1F Waste gases are detoxified by a catalyst carried by a monolithic ceramic body 3 surrounded by a metallic casing 1 with inlet and outlet openings 6, 7 around which are disposed resilient clamping and sealing means 2a, 2b. The sealing means prevent the gases from flowing around the outside of the body 3 and include at their ends adjacent the body circumferentially extending clamping portions 8 bearing directly or indirectly on the body to clamp it axially. The portions 8 may bear on the body by way of a heat resistant sealing material 9a and a ceramic ring 9 or a ceramic outer sleeve (10) Fig. 2 (not shown). Gas from the inlet 6 may be evenely distributed to the catalyst carrying body 3 by a perforated disc 11. In Fig. 3 (not shown) the corrugated part (12) is of soft material and acts as a gas seal. It is surrounded by a coil spring (13). In Fig. 4, casing 1 is formed with corrugated parts 4 and 2b and tie rods 15 cause the parts 2b to engage against the catalyst body 3 or against ceramic rings.
Patent GB-220282-A (GB)
IPC: D06M16/00
Filed: 1924-07-09
Abstract: To prepare a fine viscose silk having a high degree of softness and toughness and good tensile strength and extensibility, there is added to the lye in which the xanthate is dissolved an emulsoid, preferably a vegetable mucilage, such as agar-agar, cetraria islandica, semen psyllii, laminaria, salep, or the like.
Patent GB-981743-A (GB)
Title: Improvements in electron guns
IPC: H01J3/02
Filed: 1962-09-27
Abstract: 981,743. Klystrons. VARIAN ASSOCIATES. Sept. 27, 1962 [Oct. 30, 1961], No.16520/64. Divided out of 981,742. Heading H1D. A high power, high voltage electron gun comprises an electron emitter 11, an aperture anode 9 for accelerating electrons from the emitter through the aperture 13, insulating means 16, 25 between the anode and emitter, and an elongated hollow cylindrical focus electrode 10, 10<SP>1</SP> made of copper encircling and operating near the potential of the emitter. Specification 796,045 also is referred to.