baber/WOPTO huggingface dataset:
Patent GB-864870-A (GB)
Title: Release coatings in association with webs having a coating of pressure-sensitive adhesive
Inventor: AUBREY DEREK WILFRED
IPC: C09J7/21
Filed: 1958-02-12
Abstract: A release coating for adhesive tapes comprises a copolymer of a diester of an acid:-  <FORM:0864870/IV (a)/1> where R, R1 and R11 are hydrogen, methyl, halogen or carboxyl, with a fatty alcohol having at least 16 carbon atoms in the molecule.  Co-monomers suitable are monoesters of the above acids (provided that the diester is present in greater quantity, and preferably at least equimolar quantity, compared with the monoesters), vinyl or acrylic esters, vinyl ketones, vinyl ethers or vinyl aromatic hydrocarbons, preferably one containing an alkyl group of at least 16 carbon atoms; specified are vinyl stearate, behenyl acrylate and acrylic acid, vinyl behenate, vinyl acetate, styrene, vinyl chloride, vinyl bromide, methyl acrylate and acrylonitrile.  The acid forming the diester may be maleic, fumaric, citraconic, chlormaleic, itaconic or aconitic and specified alcohols are behenyl and octadecyl.  The copolymers are applied as coatings of 1-2 X 105 cm. thickness on films or foils of polythene, plasticized or unplasticized polyvinyl chloride, nylon, polyester, cellulose acetate, paper or regenerated cellulose.  They are usually applied in solution in aromatic, aliphatic or chlorinated hydrocarbons, esters, ethers or ketones.  Other materials which may be present are polymethylmethacrylate, polyvinylacetal or, to enhance bonding to the substrate, polyisosyanates.  In an example a copolymer is prepared by esterifying 0,25 mol of maleic anhydride with 0,5 mol of benhenyl alcohol and copolymerizing with 21,5 g. of vinyl acetate in the presence of benzoyl peroxide in benzene and 0,4 g. of this copolymer mixed with 0,08 g. of toluene diisocyanate is dissolved in 100 ml. of toluene and used to back a regenerated cellulose tape coated with a standard rubber-resin adhesive.
Patent GB-157657-A (GB)
Title: Improvements in sheet holders for typewriters
IPC: B41J13/10
Filed: 1920-02-16
Abstract: 157,657. Baeseler, H. F. E. Feb. 16, 1920. Paper-shelves; sheet-guiding arrangements; platen scales.-The paper-shelf 8 is provided with a detachable pivoted extension consisting of an horizontal rail 1 and a vertical rail 2 attached to a wire bow 3, the ends of which are shaped to form pivot pins 9 for insertion in eyes 10 formed on the paper-shelf 8, and arms 7 to bear against the paper-shelf 8 when the extension is turned up into operative position. One end of the bow is attached rigidly to the rail 1 at 5. and the other end is displaceable laterally in a loop 6 of the rail 1 to permit insertion of the pins 9 into the eyes 10. A stop pin 13 is provided on the paper-shelf to prevent disengagement of the fixed pin 9 from its eye when the extension is in the raised position. The rails 1, 2 are graduated and provided with adjustable gauges 11, 12.
Patent GB-1026312-A (GB)
Title: Antidiarrheal compositions
Inventor: NASH J FRANK
IPC: A61K31/765
Filed: 1964-02-04
Abstract: An antidiarrheal composition comprises a copolymer of maleic anhydride, a vinyl or vinylidene compound as cross-linking agent and an olefine of formula R-CH = CH2, where R is H, C1- 5 alkyl or C1- 3 alkoxy, the copolymer having a viscosity of 10,000-100,000 cp. in 1% aq. solution at 25 DEG  C. and pH 9.  The cross-linking agent may be styrene, methyl methacrylate, vinyl acetate or vinyl crotonate.  The olefine may be ethylene, propylene, (di)-iso butylene, butene-1, or methyl or ethyl vinyl ethers.  The copolymer may be partially hydrolysed so as to convert 5-25% of the anhydride residues to carboxyl groups. The compositions may contain sodium cyclomate, citrate, chloride and glutamate, saccharin, vanillin, magnesium stearate and mannitol.  The copolymer may be prepared by reacting the monomers in an organic solvent, e.g. toluene, and in the presence of a catalyst, e.g. benzoyl, acetyl, butyryl, succinyl, lauroyl or cumyl peroxides.ALSO:An antidiarrheal composition comprise a copolymer of maleic anhydride, a vinyl or vinylidene compound as cross-linking agent and an olefine of formula R-CH=CH2 where R is H1 C1-5 alkyl or C1-3 alkoxy, the copolymer having a viscosity of 10,000-100,000 cp. in 1% ag. solution at 25 DEG C. and pH9.  The cross-linking agent may be styrene, methyl methacrylate vinyl acetate or vinyl crotonate. The olefine may be ethylene, propylene, (di)-isobutylene, butene-1, or methyl or ethyl vinyl ethers.  The copolymer may be partially hydrolysed so as to convert 5-25% of the anhydride residues to carboxyl groups.  The composition may be in dosage form, e.g. a tablet or capsule or an oral suspension in which the pharmaceutical carrier is a liquid e.g. an alcohol soluble modified triglyceride derived from coconuts.
Patent GB-554544-A (GB)
Title: Improvements in or relating to ensilage cutters
IPC: A01F29/09
Filed: 1942-04-10
Abstract: 554,544. Mixing-apparatus. FAIRMILE ENGINEERING CO., Ltd., and CULL, W. April 10, 1942, No. 4728. [Class 86] In order to provide for a more intricate mixture of molasses or other medium and chopped fodder as this passes through the usual feed pipe 3 from a blower to a silo, a section 1 of tubing placed in the down or fall portion 2 of the feed pipe is formed with a venturi 4, at which point the molasses &c. is introduced through a single jet or a number of radial jets 5 which are fed from a float chamber (not shown), optionally provided with a metering jet. The proportion of molasses may be varied by adjusting the size of the jet or jets 5, or by feeding the molasses through the medium of a variable delivery pump.
Patent GB-777245-A (GB)
Title: Improvements in or relating to servo-systems
Inventor: BARR JOHN DENZIL
IPC: G01C21/18
Filed: 1953-02-20
Abstract: 777,245. Self levelling devices. SPERRY GYROSCOPE CO., Ltd. Feb. 5, 1954 [Feb. 20, 1953], No. 4820/53. Class 113. In a motor stabilized platform, the motor load is confined to frictional forces. The inertial load on the motor, due to acceleration of the motor itself and the gearing is largely absorbed by an auxiliary flywheel geared to the motor. As shown, the shaft 10 is stabilized by electric motor 11, against movements of frame 14. The torque required to move the gears and shafts 12a, 12b, 12 and the rotor of 11 is developed, during acceleration of 14, by the flywheel 13b. In a further embodiment, not shown, a gimbal ring is stabilized by a motor, and the inertia of the ring and gearing is balanced by a flywheel geared to the gimbal.
Patent GB-1358611-A (GB)
Title: Tris -bicycloheptyl- chromium compounds and use as polymerization catalysts
IPC: B01J31/12
Filed: 1972-02-02
Abstract: 1358611 Tris-(bicycloheptyl) chromium compounds HERCULES Inc 2 Feb 1972 [2 Feb 1971] 4934/72 Heading C2J [Also in Division C3] Organochromium compounds of general formula Y 3 CR where Y is where two of the R radicals are CH 3  and the other two are H and each R<SP>1</SP> is H or CH 3 , there being a total of 2 to 4 CH 3  groups attached to the bicyclic radical, are prepared by reacting the corresponding bridgehead lithium compound with a chromium salt (particularly a halide), an ether complex thereof or an alkoxide of chromium in an inert atmosphere at - 78 to + 35‹ C., usually in a hydrocarbon diluent such as pentane, heptane or cyclohexane. The chromium halide reactant may be CrCl 3 , CrCl 3 .3THF (tetrahydrofuranate), CrF 3  or CrI 3 . In the examples, tris-(4-camphyl) chromium is prepared (4-camphyl= 2,2,3-trimethyl-1-bicyclo-[2- 2,1]-heptyl). The compounds are useful as olefin polymerization catalysts.
Patent GB-1537082-A (GB)
Title: Pressurized fuel cell power plant
IPC: H01M8/04
Filed: 1976-02-10
Abstract: 1537082 Pressurized fuel cell UNITED TECHNOLOGIES CORP 10 Feb 1976 [12 Feb 1975 (4)] 05061/76 Heading H1B A fuel cell stack includes a plurality of fuel cells connected electrically in series through a load, each cell having a cathode electrode, an anode electrode, an electrolyte therebetween, a cathode gas space on the non-electrolyte side of the cathode, and an anode gas space on the non-electrolyte side of the anode, and has compressor means powerable by the energy of a hot pressurized gas for compressing air to above atmospheric pressure, means for delivering air from said compressor means into said cathode gas space, means for delivering pressurized fuel into said anode gas space, and means for delivering waste energy produced by the fuel cell into the compressor means in the form of a hot gas. In the embodiment shown, air enters compressor 38 and compressed air passes to air box 25 and thence to cathode gas space 30, or to burner 36; here the air and fuel from 75 serve to heat reactor 34, wherein steam and fuel from 60 react to produce H 2 -rich gas which feeds anode gas space 32; the effluent from reactor 34 (pipe 77), cathode gas space (73) and anode gas space (pipe 72) all are delivered to turbine 40, which drives compressor 38. A pump 69 pumps liquid through portion 15 of the stack; the hot liquid heats boiler 20; in boiler 20 water condensed from the cathode effluent 18 is boiled to produce the steam for reactor 34. In modifications, the fuel is treated in a shift converter and selective oxidizer, or the cell is able to run at less than full power without depressurizing the system by virtue of a bypass air leg, the by-passed air being heated and recycled to the turbine. The oxidant is air, the fuel is H 2 , and the electrolyte is H 3 PO 4 , metal oxide or solid polymer may be used.
Patent GB-248004-A (GB)
Title: Improvements in stuffing boxes for rotating shafts
IPC: F16J15/447
Filed: 1926-02-22
Abstract: 248,004. Akt.-Ges. Brown, Boveri, et Cie. Feb. 21, 1925, [Convention date]. Stuffing boxes, substitutes for; boxes; packing, adjusting; draining.-In labyrinth packing of the type in which the stationary packing elements d are carried by a lining e, which is caused to follow the axial movements of the shaft bv means of a collar g engaging the shaft, end thrust on the collar g is avoided by means of packing h between the casing and an extension h of the lining, the outer diameter of which is equal to or less than the bore of the elements d. The packing n may be adjusted by means of plastic material inserted through a passage m. The lining e may slide in a bearing lubricated by a passage o, rotation being prevented by a pin, or the lining may be secured to the casing by a flexible diaphragm. Passages are provided for removing leakage.
Patent GB-116875-A (GB)
Title: Improvements in Buttons for Wearing Apparel.
Inventor: WELPLY ALTON SAMUEL
IPC: A44B1/32
Filed: 1918-03-23
Abstract: 116,875. Welply, A. S. March 23, 1918. Studs.-In a two-part button or stud, one member is provided with a hollow shank 1, Fig. 1, having at one end a flexible protuberance 2, and the second member with a central receiving aperture extended on one side to form a longitudinal channel 3 for the passage of the protuberance, this channel opening into a recess 5 into which the protuberance is sprung by rotating one of the members. In the arrangement shown in Figs. 4 and 5, a protuberance 2<1> is disposed near the end of a split tubular shank- 1<1>, and the second member is provided with a hollow shank 4<1> having a longitudinal channel 3<1> for the passage of the protuberance, this channel leading into a transverse channel 12 which opens into a recess 5<1>.
Patent GB-649990-A (GB)
Title: Improvements in or relating to compositions particularly adapted for horticultural spray use
Filed: 1948-02-21
Abstract: Stable aqueous dispersions of polymeric organic polysulphides are prepared by reacting water-soluble polysulphides with formaldehyde alkylene dihalides, or like alkylene compounds containing two acid radicals in aqueous media in the presence of emulsifying or dispersing agents.  Specified emulsifying &c. agents are lignin sulphonates, alkyl benzene sulphonates, aralkyl sulphonates, and sorbitan monolaurates.  Specified alkylene compounds are ethylene dichloride and dibromide, propylene dichloridedibromide, the dichlorides and dibromides of unsaturated hydrocarbon gases or other reaction products with sulphur dichloride, or other alkylene compounds of the kind above specified in which the alkylene chain is interrupted by oxygen linkages, sulphur linkages, and/or phenylene groups.  According to examples: (1) an aqueous solution containing (NH4)2S4.5 and sodium lignin sulphonate is added slowly with stirring to 37 per cent formalin maintained at 30 DEG  C.; (2) an aqueous solution containing Na2S4.5 and sodium lignin sulphonate is added slowly with stirring to ethylene dichloride kept at 55 DEG  C.; (3) an aqueous solution containing Na2S4.5 and sodium lignin sulphonate is added slowly with stirring to b ,b -dichlorethyl ether maintained at 65 DEG  C.  The polysulphide dispersions in admixture with a 2,2-bis-(aromatic) substituted halogenated ethane, e.g. D.D.T. are used for spraying horticultural products (see Group VI).ALSO:A composition adapted for horticultural spray use comprises a 2, 2-bis-(aromatic) substituted halogenated ethane, and a polymeric organic polysulphide preferably in the form of an aqueous dispersion. Specified halogenated ethanes are 1, 1, 1-trichloroethanes in which the 2, 2, bissubstituents are parachlorophenyl, p-tolyl, p-bromophenyl, phenyl, p-hydroxyphenyl, p-acetoxyphenyl, p-fluorphenyl, p-ethoxyphenyl, p-n-propoxyphenyl, p-n-butoxyphenyl, 5-hydroxy-2, 3, 6-trichlorophenyl, p-chlorophenoxy, p-nitrophenyl, 4-carboxy-3-hydroxyphenyl. and p-chlorothiophenyl, similar compounds in which bromine replaces chlorine, the reaction products of cresols with chloral or chloral hydrate and the reaction products of the corresponding thiophenols.  The composition may also include a clay extender such as bentonite and a wetting agent.
Patent GB-222756-A (GB)
Title: Improvements in or relating to automatic sewing machines
IPC: D05B81/00
Filed: 1924-02-20
Abstract: 222,756. Boston, J. Feb. 29, 1924. Grouped machines; feeding long lengths of fabric; driving.-Lengths of fabric fed to a sewing machine for hemstitching in the production of handkerchiefs are re-wound on to a friction clutch actuated roller, the speed of which is regulated by a brake controlled by the tension of the fabric. The fabric passes over tension rollers 28, 30 on a pivoted gate 26, 27, Fig. 2, to a folder 4 and sewing-mechanism 3. The stitched material passes under a roller 18 on a weighted lever 17, over a tension roller 21 to a winding roller 22, Fig. 1. A power-shaft 8 drives the sewing- mechanism through a belt-drive 9 and a clutch 5 and also drives a pulley 15 through gearing 10, 11, a shaft 12 and a belt drive 13. The pulley 15 is spring-pressed against a friction plate 43 on a shaft 14a which actuates the roller 22, and drives the roller 21 by a belt 16. A starting lever 7 is operatively connected to a clutch-operating lever 6 and to a belt-shifter 41 for shifting the belt 13 to and from a loose pulley 14. The lever 17 is operatively connected to a brake 25 which acts on the roller 22 so that, if the tension on the material 20 becomes too great, the lever 17 is raised and the brake 25 is operated to slow down the roller 22. An arm 31 of a weighted bellcrank 31, 32, Fig. 2, which is pivoted in the gate rests on the material 20. When the material fails, the bell-crank drops and actuates a series of links and levers 34 - - 38 to free a latch 39 on the lever 7 which is thereupon spring-actuated to stop the sewing-mechanism and the roller 22.
Patent GB-696699-A (GB)
Title: Hand propelled wheeled vehicles
IPC: B62B5/08
Filed: 1951-03-05
Abstract: 696,699. Seats. HEALEY, C. J. March 5, 1952 [March 5, 1951], No. 5336/51. Class 52(iii) [Also in Group XXXII] A hand propelled vehicle comprises a pair of wheels 1, load supporting means 5, and an axle tree 3; fastened to this, either centrally or nearer one end than the other, is member 6 of an articulated traction bar 6, 7, member 7 being adapted to be moved into a position where it will engage the ground and form a seat above the ground. Member 7 is provided with an earth plate 15 and spike 16, and a seat or handle 13 of the shooting stick type, and swings about pivot 9 and can be clamped in any position or clipped by clip 17 for traction. The block 8 slides on a sleeve (not shown), held between collars on leg 7, and bearings collars 11 against which press two shock absorbing springs 12, also pressing on block 8.
Patent GB-957153-A (GB)
Title: Gas turbine engine
Inventor: DAVIS DAVID OMRI
IPC: F02C3/06
Filed: 1963-02-08
Abstract: 957,153. Gas turbine plant. ROLLS-ROYCE Ltd. Feb. 8, 1963, No. 5346/63. Heading FIG. A gas turbine engine comprises an annular flow duct in which there are disposed in flow series compressor means, combustion equipment and turbine means, also a passage which is surrounded by the annular flow duct and which extends to atmosphere. Means are provided for supplying the passage with a radially inwardly directed bleed of air from the compressor means, also valve means for controlling the air bleed through the passage, and a valve control device for opening and closing the valve means as required. The engine shown is a vertical lift gas. turbine jet engine which comprises an annular working fluid duct 11 within which are disposed a six-stage axial-flow compressor 12, combustion equipment 13 and a turbine 23, the turbine exhaust gases discharging through the nozzle 16. A passage located within the annular duct 11 is defined by the shaft 18 of the compressor and turbine assembly, and by the tubular member 31. Air may be bled from between the fourth and fifth stages of the compressor into the passage through apertures 30 in the compressor rotor, the apertures leading to an annular passage 27 defined by spaced annular walls 25, 26. The tubular member 31 opens to atmosphere but the member may be closed by means of a butterfly valve 32 which is operable by a ram 36 connected to the valve pivot 33. When the valve 32 is closed a reduced quantity of bleed air passes through opening 42 into the casing 40 of the ram which is thereby cooled, the air then discharging to atmosphere. The turbine is started by means of gas under pressure in the bottle 20 which is directed through nozzles 22 on to the turbine rotor blades upon opening of a valve 24. Gas under pressure will at the same time pass through line 37 to actuate the ram 36 which thus acts to open the bleed air valve 32 so that a portion of air from the compressor is bled off to atmosphere. When the engine reaches self-running speed, the gas supply to the ram is stopped and the ram acts to close the valve 32, a small portion of bleed air then flowing through opening 42.
Patent GB-491077-A (GB)
Title: Improvements in apparatus for trimming grinding worms for finishing bevel gears
IPC: B23F23/12
Filed: 1937-02-23
Abstract: 491,077. Trueing grinding-wheels; gear-cutting. KLINGELNBERG, G. A., KLINGELNBERG, W. H., and KLINGELNBERG, H. W., (trading as KLINGELNBERG SOHNE, W. F.). Feb. 23, 1937, No. 5428. Convention date, Feb. 25, 1936. [Class 60] [Also in Group XXII] Apparatus for trimming the threads of a tapered grinding-worm 1 for finishing -curved tooth bevel gears, comprises a pair of diamond tools 21 carried by levers 22 which are pivoted to a carrier 30 which is fed along a pitch line of the worm during the rotation thereof by means of a screw spindle 29 which also serves as a pivot for oscillating movement of the carrier. The pivots of the trimming levers are adjustable in arcuate supports 34 according to the pressure edge of the worm and the diamonds may be set to the required thread thickness by means of screws 33. Rigid oscillation of the diamonds across the thread flanks substantially in a radial plane of the worm is effected by cams on a shaft 23 driven by a motor 38. The worm and the screw 29 are driven in unison from reversing bevel gearing 25 and gears 26-28. The housing is steadied by a roller 31 engaging a guide 32 which, for trimming a worm 1 of hyperbolic form, as shown, is of curved form. For trimming curved profiles, the levers of the trimmers may be guided in curvilinear paths. To adjust the worm towards the trimmers, the worm spindle 16 has screw-threads 16<1> running in a nut 20, the pitch of the threads 16<1> being equal to the pitch of the worm at the pitch cone multiplied by Cos alpha where alpha is the addendum cone angle. In this way, when the worm is adjusted towards the basic crown-wheel plane, the displacement of the thread flanks is at right-angles to the crown-wheel plane. When not in use the trimming-mechanism may be moved into the dotted line position, Fig. 3. The Specification as open to inspection under Sect. 91 describes also a machine for burnishing the tooth faces of bevel gears with longitudinally curved teeth by a finely toothed worm or a grinding-worm which is swung to and fro several times round the axis of the crown gear during the process of generating. The tool 1, Fig. 1 (Cancelled), is driven from a motor 2 geared to the shaft 5 which also drives the gear blank (not shown). The face plate 10 carrying the tool-head 9 is oscillated through reversing-gear comprising worm wheels 12, 13 driven from the shaft 5 through a clutch 14 controlled by a lever 15 actuated by the face plate. A differential gear 11 maintains synchronism of the tool and blank. The tool is not adjusted at once to the full cutting depth but is gradually advanced either by adjusting the tool or the blank. This subject-matter does not appear in the Specification as accepted.
Patent GB-139480-A (GB)
Title: Improvements in penholders
IPC: B43K3/00
Filed: 1920-02-24
Abstract: 139,480. Launay, A. J. H. Feb. 27, 1919, [Convention date]. Penholders.-A nib is held in position by resilient means comprising a sleeve 1 provided with two longitudinal ribs 3, and a U-shaped spring 4, having curved ends 5 pressing against the edges of the stem 2 of the nib and holding it against the ribs 3. A ring 6 protects the sleeve from deformation.
Patent GB-1133695-A (GB)
Title: Desulfurization process for heavy petroleum fractions
Inventor: MATTOX WILLIAM JUDSON
IPC: C10G19/067
Filed: 1967-02-06
Abstract: 1,133,695. Desulphurizing oils. ESSO RESEARCH & ENG. CO. 6 Feb., 1967, No. 5542/67. Heading C5E. Sulphur and other contaminants are removed from a hydrocarbon stream by contacting the stream in at least two stages with molten alkali-metal hydroxide containing 5 to 30% by weight of water based on total reagent. The process may be carried out at 400‹ to 800‹ F. in an open vessel or an autoclave. The amount of hydroxide used in each stage may be from 10 to 200% by weight of the hydrocarbon. Examples are given of two- and three-stage processes.