baber/WOPTO huggingface dataset:
Patent GB-926013-A (GB)
Title: Reciprocating gas engines and compressors
IPC: F01B1/06
Filed: 1961-11-02
Abstract: 926,013. Fluid-pressure radial-cylinder engines. GENERAL GAS LIGHT CO. Nov. 2, 1961 [Dec. 2, 1960], No. 39221/61. Classes 122 (2) and 122 (3).. [Also in Group XXVIII] A reciprocating gas engine has radially reciprocable pressure elements 18 which transmit thrust to counterbalanced eccentrics 25 mounted on a shaft 6, and valve means carried by the body 1 of the engine. The pressure elements 18 are of rectangular shape extending from end to end of the body 1 and the eccentrics are mounted within the axial limits of the body 1 flush with the ends of the pressure elements. A double contoured cam 45 comprising two similar outer contours and an inner contour, acts on coaxial inlet and exhaust valve components, respectively. A valve cage 32 coacts with the inlet valve 41 and the outlet valve 38 (see Fig. 7) and the cages are retained in cavities 27 in the valve body end member 2 by screws 34. The faces 40, 44 of the exhaust and inlet valves, respectively, are covered with rubber or other deformable material. The pressure elements 18 comprise rectangular bars with flexible sealing pads 19 each provided with a peripheral groove 20 to form a sealing lip. Rollers 24 at either end of the pressure elements contact the eccentrics 25. Pressure gas is supplied to an inlet port 10, passes through the inlet valve to the port 28. The gas is exhausted through the port 28, the outlet valve into a passage 30 leading to the interior of the motor body 6. The gas cools the pressure elements 18 in passing to a recess 31A from which it passes to atmosphere through bores 131, 133 and the exhaust port 11.
Patent GB-1513820-A (GB)
Title: Sheet treatment
IPC: B29C48/08
Filed: 1975-09-26
Abstract: 1513820 Embossing LEESONA CORP 26 Sept 1975 [31 Oct 1974] 39447/75 Heading B6J An excruded polymer sheet 5, Fig. 1, is embossed with a plurality of ribs and grooves by being passed between a backing roller 16 and an embossing roller 14, Figs. 1 and 4, having a plurality of axially spaced, circumferentially extending ribs thereon, and the sheet is then maintained in contact with the roller 14 over an arc while being cooled by means of one or more pressure rollers 30 on an endless belt passing over two such rollers, the or each roller 30 being adjustably urged against the roller 14 at each end by a pneumatic piston rod 48.
Patent GB-340775-A (GB)
Title: Improvements in photographic processes
IPC: G03C11/16
Filed: 1929-12-28
Abstract: 340,775. Glazing photographic negatives. SMITH, W., 25, Charles Street, Haymarket, and BRAMWELL, J. E., 9, Harrow Road, Paddington, both in London. Dec. 28, 1929, No. 39653. [Class 98 (ii).] A developed and fixed negative having an opaque backing is glazed by any known process, e.g. by squeegeeing it on to a ferrotype or glass plate. Positives produced therefrom by copying with reflected light exhibit greater depth.
Patent GB-906000-A (GB)
Title: Cosmetic compositions comprising vitamin-a derivatives
IPC: A61K8/67
Filed: 1960-11-18
Abstract: Vitamin-A acid panthenol ester is prepared by adding dropwise under nitrogen a benzene solution of vitamin-A acid chloride to a cooled (0 DEG C.) solution of d-panthenol in pyridine/benzene and raising the temperature to 50 DEG C. for 2 hours after 30 minutes. After ether extraction and drying the ester may be purified by chromatography on alumina.  The mono glyceryl ester is prepared by a similar process whereby vitamin-A acid chloride is reacted with acetonyl-glycerine to give the vitamin-A acid acetonyl-glycerol ester which gives the mono-glyceryl ester on heating under nitrogen a solution thereof in an ether/acetone/acetic acid mixture.ALSO:Cosmetic compositions comprise a cosmetic or pharmaceutical base and Vitamin-A acid or an ester thereof, e.g. in a quantity of about 0.01 to 1% by weight. Suitable esters are those with monohydric alcohols and polyhydroxy alkanes containing up to 7 carbon atoms, e.g. sugars, glycerine and panthenol, the alcohol derived radical optionally being further substituted by araliphatic, cycloaliphatic or heterocyclic radicals which, in turn may bear carboxy, carbalkoxy, hydroxy and/or amino groups. Cosmetic forms mentioned are creams, pomades, salves, brilliantines and hair lotions.  Optional ingredients include substances conventionally used for the care of the skin, e.g. lanolin and lecithin.
Patent GB-858257-A (GB)
Title: Cyclododecatriene- and trivinyl- cyclohexane-maleic anhydride adducts and derivatives thereof
Filed: 1958-12-11
Abstract: The invention comprises carboxylic acid anhydrides detained by the thermal addition of from 1 to 4 molecules of maleic anhydride to 1 molecule of a cyclododecatri-(1, 5, 9)-ene or a trivinyl cyclohexane, carboxylic acids obtained by the saponification of such carboxylic anhydrides, esters obtained by the esterification of such carboxylic acids or anhydrides and saturated carboxylic acids, anhydrides and esters obtained by catalytic hydrogenation thereof.  The initial products are anhydrides of dicarboxylic or higher polycarboxylic acids, e.g. tetra-, hexa- and octacarboxylic acids.  Solvents for use in preparing the anhydride-olefine adducts include benzene, toluene and xylene.  The composition of the products depends on the proportions of reactants and reaction times employed.  The esters may be propared with mono- or polyhydric aliphatic alcohols which may be substituted.  In examples: Cyclododeca-tri- (1, 5, 9)-ene and maleic acid are reacted in an autoclave to obtain an adduct in which the olefine and anhydride are combined in a proportion of 1 : 3 (1), in a similar process a similar product is obtained and hydrolysed, the free acid being esterified with ethanol in the presence of p-toluene sulphonic acid and benzene (2); an adduct in which olefine and maleic anhydride are combined in the proportion of 1 : 1 is similarly obtained and hydrogenated to the corresponding saturated di-carboxylic anhydride (3); 1 : 1 adduct of trivinyl cyclohexane and maleic anhydride is similarly obtained; (4) a 4 : 1-addition product is obtained under similar conditions and hydrolysed (5) and the 3 : 1 addition product of maleic anhydride and cyclododecatri (1, 5, 9)-ene is heated with hexan-1-ol, tetra-decan-(1)-ol and butan -(1)-ol to obtain the corresponding hexa-alkyl esters.  Specifications 848,951 and 849,236 are referred to.
Patent GB-1087846-A (GB)
Title: Thermoplastic films of maleic anhydride-olefine copolymers
Inventor: BARR DENNIS ARTHUR
IPC: C08L23/02
Filed: 1963-10-10
Abstract: Copolymers of maleic anhydride and an olefine (which may be formed into a film-see Division B5) are defined as being the solid products produced by polymerizing maleic anhydride with an approximately equimolar amount of a monoethylenically unsaturated hydrocarbon having 4 to 10 carbon atoms in the molecule and selected from the group consisting of (1) 1,1-dialkyl substituted ethylenes and (2) aralkenes.  Up to one half of the olefine and maleic anhydride residues of the copolymer may be replaced by other monomers; illustrative of these are other C3- 14 olefins, indene, stilbene, halo-styrenes, maleimide and derivatives thereof, vinyl alkyl ethers, alkyl esters of maleic, fumaric, acrylic and methacrylic acids, unsaturated nitriles, and anhydrides of unsaturated dicarboxylic acids.  In an example, 3.5 moles of maleic anhydride, 3.32 moles of isobutene and 0.77 mole of 2-methyl butene-1 are heated together under nitrogen in the presence of 4 parts of benzoyl peroxide in a 50/50 solvent mixture of benzene and toluene at 75 DEG  C. for one hour followed by 90 DEG  C. for one and a half hours.  The slurry obtained is filtered and the residue washed with ether and dried for 24 hours at 100 DEG  C. and an absolute pressure of 0.01 mm. Hg (to remove traces of maleic anhydride) to yield about 500 parts of the copolymer. Polymerization may also be effected using lauroyl peroxide as catalyst, and may be performed in the melt instead of in an inert solvent.
Patent GB-875204-A (GB)
Title: Improvements in and relating to clutch discs for electromagnetically operated friction clutches
IPC: F16D13/64
Filed: 1958-12-12
Abstract: 875,204. Friction clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Dec. 12, 1958 [Dec. 20, 1957], No. 40213/58. Class 80 (2). [Also in Group XXII] A plate for an electromagnetic friction clutch comprises outer 1 and inner 2 zones of ferromagnetic material with an intermediate zone 3 of non-magnetizable material, the three zones being joined by resistance welding. The non- magnetizable material may be austeritic steel having a higher electrical resistance than the material of the other zones such that under the electrode pressure the parts engage. The plate may be formed with expansion slots which extend radially to the intermediate zone 4, 5 or through the zone 6, 7 and the surface of the intermediate zone may be below the friction surfaces of the inner and outer zones. Specification 794,958 is referred to.
Patent GB-1361064-A (GB)
Title: Gangways for railway vehicles
IPC: B61D17/20
Filed: 1972-08-21
Abstract: 1361064 Vestibules connecting railway vehicles BRITISH RAILWAYS BOARD 21 Aug 1972 [27 Aug 1971] 40249/71 Heading B7L A vestibule for a railway vehicle comprises a foamed, expanded or cellular plastics member 3, e.g. of foamed polyurethane, adapted to be connected to the vehicle end by a backing plate 5 and to a similar vestibule on an adjacent vehicle by a facing plate 4, the member 3 being supported for movement with the vehicle coupler on arms 10, rubber assembly 11, plate 12 and a spherical rubber bush 13, whereby the vestibules are maintained in lateral alignment with respect to the couplers while permitting pivoting thereof about vertical axes. In a modification the member 3 may be supported from the end of the vehicle. Electric connectors and location means may be provided on the outer face of the vestibule. The member 3 may have a fire resistant and waterproof skin sprayed thereon or may itself be impervious to water.
Patent GB-1097780-A (GB)
Title: Electronic drive circuitry
IPC: G01R13/40
Filed: 1965-09-22
Abstract: 1,097,780. Transistor pulse circuits. BENDIX CORPORATION. Sept. 22. 1965 [Sept. 30. 1964], No. 40412/65. Heading H3T. A signal represents by its amplitude and phase sense the increase or decrease of a quantity sensed by an alternating input and directs pulses to the drive and clearing inputs of an integrator depending upon whether the quantity is increasing or decreasing. A.C. input signals, derived for example from a thermocouple for measuring exhaust gas temperature, a fuel flow meter or a techometer, have a magnitude and phase sense depending upon whether the measured quantity is increasing or decreasing. These signals are passed through a phase splitter Q1 to make either SCR1 or SCR2 conduct depending upon the phase sense relative to the supply source 28. Pulses from SCR1 are applied alternately to lines A and B under the control of alternately conducting transistors and accordingly step a shift register or integrator 42 controlling an electroluminescent indicator. Pulses from SCR2 pass through Q4 to effect clearing by way of the fine control of the integrator and a plurality of such pulses will charge C2 sufficiently to render Q5 conducting to clear by way of the coarse control.
Patent GB-924478-A (GB)
Title: Improvements in or relating to shock absorbers
Inventor: DUCKETT WILLIAM ARTHUR
IPC: F16F9/36
Filed: 1960-11-24
Abstract: 924,478. Hydraulic shock-absorbers. WOODHEAD MONROE Ltd. Oct. 6, 1961 [Nov. 24, 1960], No. 40438/60. Class 108(3). In a double-acting hydraulic shock absorber of the kind comprising a valved piston 11 slidable within a pressure tube 10 having a foot valve 12 air, leaking from within the shock absorber through a piston rod seal 16, passes through an orifice 25 leading from an annular recess 22 in the upper face of the seal 16 and into the narrow annular space between the tube 10 and an anti-aeration tube 24 disposed in a reservoir chamber 13. The orifice may include a spring-loaded ball valve 26. Due to an O- type sealing ring 23, retained in the recess 22 by an inturned end portion of the anti-aeration tube 24, only a small amount of oil enters the chamber above the guide 16 such oil being returned to the reservoir 13 by means of ducts 27 between the anti-aeration tube 24 and the inside of an end cap 21 for the reservoir 13. A packing 20, out of direct contact with oil, is lubricated by an oil mist.
Patent GB-1010451-A (GB)
Title: Improvements in or relating to mode transformers in wave guides
IPC: H01P1/16
Filed: 1961-11-13
Abstract: 1,010,451. Ferrite mode transformers. COMPAGNIE FRANCAIS THOMSON-HOUSTON. Nov. 13, 1961 [Nov. 23, 1960], No. 40510/61. Heading H1W. A device for transforming between the H 01  and H 10  modes in a rectangular waveguide G comprises an element P composed of a minor portion F of ferrite and a major portion D of a low-loss dielectric having a dielectric constant approximating that of the ferrite, e.g. alumina. The portions may have the prismatic shapes shown. The ferrite portion is situated against the narrow wall of the waveguide and is subject to a magnetic field at right angles to the direction of polarization of the transmitted modes.
Patent GB-1009095-A (GB)
Title: Improvements in or relating to a cooled valve for high temperature gases
IPC: F16K49/00
Filed: 1964-10-05
Abstract: 1,009,095. Valves. KOPPERS CO. Inc. Oct. 5, 1964 [Nov. 6, 1963], No. 40590/64. Heading F2V. A valve suitable for controlling the flow of high temperature gases comprises a hollow annular seat member 7 and a hollow doublemushroom-shaped closure disc 17, both of which are adapted to be cooled in such a way that the greatest cooling effect occurs at the areas where the disc contacts the seat. In the case of the disc this is achieved by means of a lenticular shaped insert 31 of greater radius than the disc, thereby defining a passage which narrows progressively in the direction of the periphery of the disc to increase the velocity of the medium in this region, the medium being supplied through a tube 21 and removed through the annular space between tube 21 and a further tube 19, which latter tube may also serve as an operating spindle. The seat is provided with a ring-shaped insert 35 defining a chamber 41 to which cooling medium is supplied by pipes such as 39 and a chamber 45 from which the medium flows to pipes such as 43, the chambers communicating with each other via a narrow annular space 47 adjacent the area where the disc contacts the seat, thereby causing a high velocity in this region to increase the cooling effect.
Patent GB-1426493-A (GB)
Title: Polyblend composition
IPC: C08L21/00
Filed: 1973-08-29
Abstract: 1426493 Grafted chloroprene rubber polyblends MONSANTO CO 29 Aug 1973 [30 Aug 1972] 40595/73 Heading C3G A polyblend is produced by mixing in the melt phase component (A) a polymer of at least one monovinylidene aromatic monomer and 0 to 45%, by weight of the polymer, of an ethylenically unsaturated nitrile and component (B) a chloroprene rubber grafted with at least one monovinylidene aromatic monomer and 0 to 45%, by weight of the aromatic monomer and nitrile, of an ethylenically unsaturated nitrile, the grafted chloroprene rubber constituting from 16À5% to 80% by weight of the polyblend and providing from 15% to 40% by weight of the polyblend of chloroprene rubber, one or more monovinylidene aromatic monomers providing chemically combined chlorine and/or bromine, the amount of such monomer providing at least 11% by weight of chlorine and/or at least 6 % by weight of bromine in the polyblend. Examples are given of polyblends comprising (a) polychloroprene grafted with chlorostyrene and poly(monochlorostyrene); (b) polychloroprene grafted with chlorostyrene and acrylonitrile and chlorostyrene/acrylonitrile copolymer; (c) polychloroprene grafted with styrene and monobromostyrene and styrene/monobromostyrene copolymer; (d) polyblend as in (c), containing in addition the polybutadiene grafted with styrene and acrylonitrile. A mixture of grafted chloroprene rubbers having different particle sizes may be used.
Patent GB-938446-A (GB)
Title: Compact mobile nuclear power plant
Inventor: WETCH JOSEPH RONALD
IPC: G21C13/08
Filed: 1961-11-14
Abstract: 938,446. Alloys. NORTH AMERICAN AVIATION Inc. Nov. 14, 1961, No. 40651/61. Class 82. [Also in Group XL (a)] A uranium-zirconium hydride alloy is used as the fuel in a nuclear reactor core and behaves as a mechanical mixture of zirconium hydride and uranium metal. The fuel operates between 300‹ C. and 550‹ C. and has a H/Zr ratio of about 0.6 to about 1.4. This places it on the hatched area of the Zr-H phase diagram where the dissociation pressure is less than 11 microns at the fuel centre temperature and about 0.01 microns at the surface temperature, and is independent of composition since it is in a twophase region (alpha and delta). Structurally the mixture is about 80 a/o ZrH 1À5  dispersed in 20 a/o alpha zirconium. In this region the disadvantages of the brittle delta phase are reduced. Further, the proposed fuel contains the same mixed phases in the same proportion from room temperature up to about 575‹ C. The lower limit of hydrogen concentration, i.e. about 40 a/o, is dictated by the extremely low limit of hydrogen solubility in alpha zirconium (ZrH x , where x is less than 0.1). Therefore, sufficient delta phase must be present so that sufficient hydrogen can be present in the zirconium hydride system.
Patent GB-1203079-A (GB)
Title: Stabilization mixtures
IPC: C08K5/58
Filed: 1967-09-06
Abstract: 1,203,079. Stabilizing PVC. DEUTSCHE ADVANCE PRODUKTION G.m.b.H. 6 Sept., 1967 [8 Sept., 1966], No. 40766/67. Heading C3P. Chlorine-containing polymers, e.g. PVC are stabilized with a mixture of (a) a compound of the formula in which R is C 1 -C 18  alkyl, R 1  is C 1 -C 18  hydrocarbon or substituted hydrocarbon, and Z is SR 1 , OOCR 2  or -OR 3  in which R 2  and R 3  are C 1 -C 20  hydrocarbon or substituted hydrocarbon and R<SP>1</SP> is alkylene, arylene, aralkylene or alkarylene or substituted derivatives thereof and (b) 0.5-30% of (a) of a monomeric alkyl stannoic acid or a bis (monoalkyltin mercapto carboxylic acid alkyl ester) oxide. In the examples PVC or vinyl chloridevinyl acetate copolymer is mixed with mineral oil and the stabilizer composition.
Patent GB-1217430-A (GB)
Title: Propellent charge powder with improved power and stability
IPC: C06B25/26
Filed: 1969-08-15
Abstract: 1,217,430. Propellants. DYNAMIT NOBEL A.G. 15 Aug., 1969 [16 Aug., 1968], No. 41000/69. Heading C1D. The power and stability of a single base or polybase propellent composition is increased by contacting the composition, before, during or after shaping, with an aldehyde. The propellant may be in strip or ball powder form and may be treated with an aqueous solution of the aldehyde or with formaldehyde vapour. The propellent composition includes nitrocellulose with or without nitroglycerine or nitroglycol; nitroguanidine may also be present. Other optional ingredients are diphenylamine as a stabilizer, diethyl diphenyl urea, petroleum jelly, dibutyl phthalate, sodium oxalate and acetone.
Patent GB-1524049-A (GB)
Title: Frequency measuring apparatus
IPC: H04B1/40
Filed: 1975-10-08
Abstract: 1524049 Frequency meters; radio frequency indicators HEATH CO 8 Oct 1975 [10 Oct 1974] 41131/75 Headings H3H and H3Q In a digital tuning indicator for multi-conversion radio apparatus, the frequencies of the local oscillations 18, 24 are combined (e.g. subtracted) and the resultant cycles counted at 40 over a predetermined period. The count is altered by an amount which is a function of the IF or in response to changes in the mode of operation and is displayed at 42 as the radio frequency to which the apparatus is tuned. In a transceiver, the programmer 44 may adjust the BFO 27 and counter 40 so as to provide CW, USB, LSB and transmit modes.
Patent GB-1319528-A (GB)
Title: Medicine with proliferation-inhibiting action
IPC: A61K35/28
Filed: 1970-08-28
Abstract: 1319528 Tumour-inhibiting substance STIFTUNG ONOPHRIO 28 Aug 1970 [28 Aug 1969] 41485/70 Heading A5B A substance having tumour-inhibiting properties is obtained by incubating a homogenate of a tumour with a homogenate of the spleen of the person having the tumour, acidifying the incubated homogenate and optionally adding a lower (water-miscible) monohydric alcohol, filtering; adjusting the pH of the filtrate to about pH 7.5, removing the precipitate, adjusting the pH to about 2.5, removing the alcohol if present by evaporation at below 45C, salting out protein, extracting the precipitate with glacial acetic acid and obtaining two fractions from the extract by repeated precipitation with a) acetone and b) petroleum ether/ether. The fractions may be mixed and administered by injection in physiological saline.
Patent GB-1362448-A (GB)
Title: Automatic self-balancing voltage measuring system
IPC: G01R19/00
Filed: 1972-09-09
Abstract: 1362448 Potentiometric voltage measuring system HARTMANN & BRAUN AG 7 Sept 1972 [6 Oct 1971] 41497/72 Heading G1U [Also in Division H1] In a potentiometric system for measuring an unknown voltage U, Fig. 1, the reference voltage which is progressively varied until a balance is achieved is produced by a capacitive arrangement comprising two fixed electrodes 2, 3, to one of which a reference A. C. voltage 6 is applied, and an earthed movable flexible electrode 7, 10 carried by an insulating band 5, so arranged that as the flexible electrode is moved out from between the two fixed electrodes 2, 3, the voltage picked up from the right-hand electrode 3 by an amplifier 12 progressively rises. This voltage is rectified 13, compared 15 with the unknown voltage U in order to produce an error voltage which, via a control unit 16, causes an actuator 17 to move the insulated band, and hence the flexible electrode 3, in the appropriate direction so as to achieve balance. The capacitive unit is shown in detail in Fig. 2. A closed loop insulated band 28, supported by rollers 27, carries a flexible electrode 26, 29, between two fixed electrodes 20, 21 supported on insulating plates 18, 19. The band also carries an indicating pointer 30. Movement of the band, shown at 47 in Fig. 3, is achieved by a mechanism including three coils W1, W2, W3. When coil W3 is energized the band is gripped by a unit 43, 46, and if simultaneously either coil W1 or coil W2 is energized then gripper unit is moved bodily, with the band, either upwards or downwards, the gripper unit being supported by a leaf-spring 37 mounted in the common armature of coils W1, W2. A suitable circuit for controlling the drive mechanism independence upon the error signal is described Fig.4 (not shown).