baber/WOPTO huggingface dataset:
Patent GB-282787-A (GB)
Title: A method of manufacturing artificial threads, bands, films and the like, from solutions of cellulose esters and ethers
IPC: D01F2/28
Filed: 1927-12-28
Abstract: 282,787. Ruth-Aldo Co., Inc., (Assignees of Barthelemy, H. L.). Dec. 28, 1926. [Convention date]. Grant of Patent opposed. Cellulose esters and ethers, processes for making filaments and films from.-Artificial threads, films &c. formed from solutions in volatile solvents of cellulose esters or ethers are coagulated by means of propyl, butyl, or other higher aliphatic alcohol, or a poly alcohol such as glycol or glycerine, or an alcohol of the cyclic series such as cyclohexanol, methylcyclohexanol, cyclohexylcarbinol, or ac-tetrahydrobetenaphthol. A hydrocarbon such as xylene mav be added to the coagulation bath. In an example, a solution nf acetylcellulose in acetone is extruded into a mixture of cyclohexanol and xylene, the threads are collected in a centrifuge, and the cake is washed with benzene and dried. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of a coagulation bath the composition of which is selected in such a manner with respect to its rate of absorption of the solvent in the filaments as to impart the desired mechanical and physical qualities to the coagulated product. It refers to the use of the following coagulating liquids :-(1) Hydrocarbons boiling above 80 C., such as toluol, xylenes, dimethylnaphthalene, decane, tridecane, hexadecane, terpenes and polyterpenes; (2) cyclic hydrocarbons, such as cyclohexane, methylcyclohexane, tetrahydronaphthalene, and decahydronaphthalene; (3) ethyl alcohol; (4) fatty acids of high molecular weight, such as oleic and ricinoleic acids; (5) the esters of the monohydric alcohols, such as oleates and palmitates, and the methyl, ethyl, butyl, propyl and amyl stearates; (6) halogenated compounds, such as di- and trichlorethylene, pentachlorethane, monochlorbenzene and toluene, alphabromnaphthalene, 1.2.3.trichlorbenzene, and benzyl chloride; (7) nitriles, such as benzonitrile, toluonitriles, and xylonitriles; (8) nitrated compounds, such as nitrobenzene and nitrotoluene; (9) mixtures of the above-mentioned substances. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1460987-A (GB)
Title: Mass spectrometers
IPC: G01N27/62
Filed: 1974-08-08
Abstract: 1460987 Mass spectrometers NIHON DENSHI KK 8 Aug 1974 [21 Aug 1973] 35096/74 Heading HID A double focusing mass-spectrometer comprises an ion source So, electrodes 4, 5 defining a diverging electrostatic field 3 through which the ion beam 2 passes, and means providing a converging magnetic field 6 focusing the desired ions on a detector slit 8, the parameters defining the electrostatic field 3 being selected so that dR/dr < 0 where R is the radius of the equipotential line in the r-Z plane (the Z-axis being perpendicular to the figure and r being a coordinate measured radially from the Z-axis) which is perpendicular to the plane determined by the central orbit of the ions and which also passes through the apex of the sector of the electrodes 4, 5 and r is the radius of curvature of the equipotential line in the plane Z = 0 and further that re (the radius of the central ion orbit), Re (the radius of curvature of the equipotential line in the r-Z plane) and #e (the angle of the sector of the electrodes 4, 5) satisfy the conditions 2À4 # re/Re # 3À0 and 90 degrees # #e - 140 degrees.
Patent GB-176878-A (GB)
Title: Improvements in horns for motor road vehicles and similar purposes
IPC: G10K9/22
Filed: 1920-12-14
Abstract: 176,878. Hill, E. H., and Hill, H. Dec. 14, 1920. Sound magnifying and directing appliances.- In a motor or like horn, the sound passes from the reed, diaphragm, or other sound-producer proper a, through a tube b nf gradually increasing cross-section, into a chamber or receiver c, from which it passes in the opposite direction through two or more tubes d, also of gradually increasing cross-section, the delivery ends of these tubes facing the closed end of the outer horn or bell e. The tubes d may be of different lengths or capacities to produce a more discordant note. The chamber c is preferably of elongated or elliptical cross-section. The tube b may also be compound.
Patent GB-1379117-A (GB)
Title: Detecting leaks in heat-insulated reservoirs
IPC: F17C13/12
Filed: 1972-07-27
Abstract: 1379117 Detecting leaks GAZ DE FRANCE 27 July 1972 [2 Aug 1971] 35218/72 Headings GIN and G1S [Also in Division F4] Leakage of cryogenic material, e.g. liquid natural gas, liquid oxygen, liquid air, liquid nitrogen from the inner wall 14 of a double-walled reservoir 14, 16, is detected by thermal probes associated with metal elements 30, 31, 32 mounted in or near heat insulation material 21 disposed between the tank 14 and a barrier 17 surrounding it. The elements may be disposed in rings at various levels round the tank, and the thermal probes may be thermocouples or thermo-electric elements. The heat insulation 21 may be glasswool or rock wool. The barrier 17 may be aluminium sheet sandwiched between polyethylene sheets. Outer insulation 20 comprises a pulverulent material e.g. perlite.
Patent GB-1048289-A (GB)
Title: Improvements in the formation of ceramic glasses
IPC: C03C10/00
Filed: 1963-09-06
Abstract: Glass melts of the Li2O-Al2O3-SiO2 system with possibly some MgO added are crystallized into ceramic-glass bodies by heating at a temperature of from 950 DEG  to 1150 DEG  C. either by direct cooling from the melt or by reheating after cooling to room temperature a conventionally moulded article made from a mixture of the above glass melt with the addition of 0.1 to 11% by weight any one or combination of the following: molybdenum oxide, tungsten oxide, vanadium oxide, zinc oxide or titanium oxide; molybdates of the type Me2MoO4, chlorides of molybdenum, tungsten compounds of the type Me11WO4 or compounds of the general composition Me5H7W6O24, Me3H9W6O24 or Me6H2W12O40; the chlorides of tungsten; vanadates; salts of polyvanadic acid having the general formula Hn+2VnO3n+1; VF5; divanadates, tetravanadates, pentavanadates, ammonium metavanadate having the chemical formula (NH4)4H2V4O12; and zinc sulphate.  In one example having the composition SiO2 53.2%; Al2O3 32.5%; Li2O 3.96%; MgO 10.34%; ZnO 5.43%; WO3 1.63%, the mixture was melted and then held for more than one hour at a temperature of 1000 DEG  C.  The articles may be produced by feeding the melt to a continuous line of casting moulds which pass through a tunnel furnace held constant at the crystallization temperature.
Patent GB-176167-A (GB)
Title: Improvements in guide lifting mechanism of thread winding machines
IPC: B21F3/00
Filed: 1920-12-16
Abstract: 176,167. Baines, E. N., and Schmidt, J. W. Dec. 16, 1920. Thread-spooling machines. - Guide-lifting motions of the type described in Specification 10660/01 for thread-spooling machines of the type described in Specification 2452/64 are arranged so that they operate to lift the guides instantaneously at each end of the spool. The pawl e, which operates the ratchet wheel g of the gearing driving the cam shaft j for lifting the guides, is retracted by a lever b when a bowl d falls into a groove in the thread-guide shaft a and is held in such a position by a latch n. As the shaft a traverses the bowl is lifted out of the groove and the lever b moves the connecting-pin k in a slot in the pawl e and thus compresses a spring l. At the end of the traverse, a lever o mounted on the rocking shaft p of the traverse-screw half-nut operating- mechanism releases the latch n, and the spring l shoots the pawl forward to the extent of one tooth of the ratchet-wheel. A weight may be used in place of the spring.
Patent GB-1271110-A (GB)
Title: Process for polymerising vinyl compounds using acyl azo compounds as polymerisation catalysts
Inventor: LOGEMANN HEINO
IPC: C08F2/00
Filed: 1969-07-15
Abstract: 1,271,110. Acyl azo compounds. FARBENFABRIKEN BAYER A.G. 15 July, 1969 [30 July, 1968], No. 35473/69. Heading C2C. [Also in Division C3] Acyl azo compounds of formula (in which (a) X is a C 1-6  alkyl or phenyl group and Y is a group of Formula I or a group of formula -COOR 1  in which each of R 1  and R 2  is C 1-6  alkyl or R 1  and R 2  together with the adjacent carbon atom form a C 4-8  cycloalkyl group; or (b) X is a group of Formula II in which n is 1 to 8, and Y is a group of Formula I) are prepared by oxidizing the corresponding hydrazo compounds in an organic solvent with the calculated quantity of a halogen.
Patent GB-1128799-A (GB)
Title: Improvements in containers with sealed covers
IPC: B65D77/20
Filed: 1967-08-02
Abstract: 1,128,799. Opening containers; packages. ANDERSON BROS. MFG. CO. 2 Aug., 1967 [24 Oct., 1966], No. 35482/67. Headings B8C and B8D. A shape-retaining container, substantially rectangular in plan and made of synthetic resin material, has an open top surrounded by flanges 32, 34, (36), (38), Fig. 1 (not shown), to which a flexible cover member 40 is sealed. A portion of flange 32 is adapted to be separated from the remainder of the container at a break line, indicated for example by notches (42), Fig. 1 (not shown), the cover member 40 remaining sealed to the separated flange portion whilst being peelable from part of the remainder of the flange to provide access to the contents, Fig. 6 (not shown). The container is adapted to be reclosed, and interfitting means 52, 48 are provided on the flange 32 and on the corresponding side wall 22 of the container respectively. These interfitting means may take the form of one or more protuberances to be fitted into a corresponding slot or slots, as shown, or they may be constituted by a hook and opening, Figs. 11-12 (not shown). The interfitting means may be engaged prior to the severing of the portion of the flange 32, this flange being bendable at the break line and at a line 55. When the container is reclosed after opening, the cover member 40, which may be a stretchable sheet, is held taut since a gap is formed between the edges previously constituting the break line due to the resilience of flange 32 and the inward inclination of side wall 22. In a modification, Figs. 8-10 (not shown), both interfitting means are located on the flange 32.
Patent GB-1281590-A (GB)
Title: Photographic film unit and method of manufacture
IPC: G03C8/44
Filed: 1969-07-15
Abstract: 1281590 Photographic film unit POLAROID CORP 15 July 1969 [15 July 1968] 35628/69 Heading B5N [Also in Division G2] Photographic film units having a photosensitive layer laminated to an image receiving layer by an intermediate layer of polymeric film forming material are manufactured by passing the layer in superposition between a pair of laminating rolls 64, the laminating liquid being introduced between the layers from a tube 66. The laminating liquid consists of 1À23 grams of hydroxypropyl cellulose in 100 c.c. of water distributed between the sheets at the rate of 1À45 mg. per sq. ft. The assembly is then passed through an oven 68 to a cutter consisting of a rotary knife 70 and anvil 72. The edges of the image receiving layer 14 are embossed by embossing rolls 62 to contain the laminating liquid.
Patent GB-768685-A (GB)
Title: Improvements in polycyclic internal ketals
IPC: C07D303/32
Filed: 1953-12-22
Abstract: The invention comprises polycyclic internal ketals of formula <FORM:0768685/IV(b)/1> in which R1, R2 and R3 are hydrogen atoms or saturated hydrocarbon radicals, the total number of carbon atoms in all these radicals being more than 1 and less than 8.  They may be prepared by reacting a d -e -unsaturated carbonyl compound of formula <FORM:0768685/IV(b)/2> with an oxidizing hydroxylating agent, such as KMnO4 and OsO4, in an organic solvent.  Alternatively the carbonyl compound may be treated with an oxidizing hydrating reagent to give the epoxide <FORM:0768685/IV(b)/3> which is hydrolysed by an acidified (e.g. by perchloric acid) mixture of water and a water-miscible solvent such as dioxane.  In the examples: (a) dihydro-g -irone and osmium tetroxide are dissolved in ether; the ether is distilled off and from the residue is separated the compound of formula <FORM:0768685/IV(b)/4> with one of the following hemi-ketals: <FORM:0768685/IV(b)/5> (b) dihydro-g -irone and osmium tetroxide are dissolved in ether; the ether is distilled off and from the residue is separated <FORM:0768685/IV(b)/6> (c) a ketone of formula <FORM:0768685/IV(b)/7> (obtained by the oxidation of manool by KMnO4), is treated with osmium tetroxide dissolved in ether; the ether is distilled off and from the residue the policyclic ketal of formula <FORM:0768685/IV(b)/8> is separated; (d) manool is dissolved in acetone and treated with KMnO4; from the mixture is separated the ketal obtained in (c) above.ALSO:Polycyclic internal ketones of formula <FORM:0768685/VI/1> in which R1, R2 and R3 are hydrogen atoms or saturated hydrocarbon groups the total number of carbon atoms in all these radicals being more than one and less than eight, may be used in perfume compositions.  In the examples a compound of formula <FORM:0768685/VI/2> is combined with (a) dimethyl-benzyl- - carbinol acetate, cyclosia base, synthetic geraniol, Iralia, Linalool, Santatol, Framborise 2222, patchouli and essence of styrax and (b) pentadecanolide, musk ketone, vanillin, linalyl acetate a  - amylcinnamic aldehyde, n - decanaldehyde, n - undecanaldehyde, cyclosia base, Iralia, iso-eugenol, Balsamol, Corinal, Parmanthene, patchouti and Java vetivert oil, to give perfumes.
Patent GB-806353-A (GB)
Title: Bucket and wringer combination
IPC: D06F45/12
Filed: 1955-12-13
Abstract: 806,353. Combination bucket-wringers. LANGRIDGE, I. A. Dec. 6, 1956 [Dec. 13, 1955], No. 35672/55. Class 19. A pair of wringer rollers are mounted within a bucket 1 of rectangular cross-section, there being provided an opening 24 in one wall of the bucket through which the wash cloth emerges after passing between the rollers. A retractable kneeling plate 5, 5a and a steadying plate 6 for the bucket is or are provided. The rollers are encased by a housing 2 having a slot 23 through which a wash cloth can be fed to the rollers.
Patent GB-1292557-A (GB)
Title: Ball spline assembly
IPC: F16D3/06
Filed: 1971-07-29
Abstract: 1292557 Bearings BEAVER PRECISION PRODUCTS Inc 29 July 1971 [23 Sept 1970] 35786/71 Heading F2A A ball spline assembly comprises two telescoped members 11, 13, one 11 having at least two sets of circumferentially - spaced load grooves 16a, 16b and return grooves 17 for recirculating balls with the load grooves adjacent one another, and the other member 13 having a radial rib 15t projecting between the trains of balls in each two load grooves to couple the members together for rotation, the load tracks thereby defined having a smaller radius than the return tracks to enable the balls to circulate freely. The balls are retained and recirculated by end-caps secured to the member 11. The balls may be so sized that they are deformed plastically when travelling along the load tracks.
Patent GB-508286-A (GB)
Title: Improvements in honing machines
IPC: B24B33/02
Filed: 1938-12-08
Abstract: 508,286. Grinding. BURGESS, A. F. (Barnes Drill Co.) Dec. 8, 1938, No. 35835. [Class, 60] In a honing-machine comprising a tool-carrying spindle journalled in a reciprocating head, a driving member mounted on the head serves both to rotate the spindle and to expand the tool into operative engagement with the work. In the horizontal honing - machine shown, the tool head 8 is reciprocated on a base 5, carrying the work, by means of a pair of flexible cables 21 and 22 each connected at one end to the head and anchored at the other end to a drum 23 mounted on the base, one cable 22 passing over a resiliently-supported sheave 24. The drum 23 is oscillated by a hydraulic motor which is connected to the drum through worm gearing 26 and which is driven by pressure fluid supplied, under the control of a reversing valve, from a pump driven by an electric motor 27. The honing tool 10 is carried at one end of a spindle 11 secured at its other end to a shaft 12 journalled in the head 8. A reversible electric motor 34, carried by the head. rotates the shaft 12 through reducing gearing 38 ... 40, 42 ... 46 and a claw clutch arranged within the head. Expansion of the tool is effected by a rod which extends through the spindle 11 and which is operated by a rod 54 extending through the shaft 12 from a piston 52 operating in a cylinder 51 formed on the head 8. The piston is urged in one direction, so as to allow the tool to collapse, by a spring 55, and is moved in the other direction, so as to expand the tool, by admitting pressure oil to the cylinder 51 from a pump 61 mounted in the head 8 and driven directly by the motor 34. In order that the pump 61 may function to deliver oil to the cylinder 51 regardless of its direction of rotation, the intake pipe 71 has branches 72 and 73 leading to the two pump ports and fitted with check valves 74 and 75, while the delivery pipe 76 also has branches 77 and 78 leading from the pump ports and fitted with' check valves 79 and 80. The delivery pressure is regulated by an adjustable relief valve 88 which discharges oil through a conduit 86 to the various parts to be lubricated in the head. The supply to the cylinder 51 is controlled by a solenoid-operated valve 82. With the solenoid 83 de-energized, the valve delivers through a pipe 84 and check valve 85 to the lubricating conduit 86, while when the solenoid is energized the valve delivers to the cylinder 51 through a pipe 87. As shown, a single switch 100 controls both the motor 34 and the solenoid 83, current being supplied from conductor bars 91, arranged in a casing 93 secured to the base 5, to brushes 94 carried by a bracket 97 secured to the head 8 and passing through a slot 101 in the bottom wall of the casing 93. Alternatively, a motor mounted on the base may drive a spindle on which is splined a gear mounted in the head, said gear constituting the driving member for rotating and expanding the tool.
Patent GB-757973-A (GB)
Title: Improvements in and relating to the production of crystalline material
IPC: B01D9/00
Filed: 1954-12-13
Abstract: A method of growing crystals from a solution of a substance to be crystallized comprises introducing the solution into a crystallization zone containing previously formed crystals of the substance, passing a portion of the crystal-containing solution from the crystallization zone to an evaporation zone, passing a further <PICT:0757973/III/1> portion of the crystal-containing solution from the crystallization zone through a heating zone, where some of the crystals are melted, to the evaporation zone, maintaining a vacuum in the evaporation zone to supersaturate the solution therein, passing the supersaturated solution from the evaporation zone to the crystallization zone to grow crystals therein, and removing grown crystals from the crystallization zone.  Mother liquor or feed stock is introduced by a conduit 101 into a crystallization tank 10, which contains crystals of medium and fine sizes, the medium crystals fall to the lower level of the tank while the fine crystals remain near the upper level of the solution.  A baffle 14 extends horizontally between opposite walls of the tank 10 and downwardly into the level of the solution containing only medium size crystals.  A pump 15 pumps a portion of the solution containing medium-sized crystals through a conduit 13 to an evaporator 11; while a pump 18 pumps a portion of solution containing fine crystals through a conduit 17 and through a heat exchanger 19 where the fine crystals are melted, the solution thereafter flowing into conduit 13 to join the solution containing medium-sized crystals and passes to evaporator 11.  The evaporator 11 is maintained under sufficient vacuum through a line 22 connected to a condenser 23 to cause boiling of the solution to remove solvent as vapour to provide a super-saturated solution.  The super-saturated solution flows down a barometric leg 12 into the lower portion of the crystallization tank 10 where the substance in solution is crystallized by contacting crystal nuclei therein and forming large crystals which fall to the bottom of the tank and are removed through a pipe 28 by an ejector 29.  The substance crystallized may be urea or ammonium nitrate.
Patent GB-412215-A (GB)
Title: Improvements in signalling systems such as telegraph systems
IPC: H04L27/06
Filed: 1932-12-20
Abstract: 412,215. Code telegraphy. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and CHITTENDEN, P. A., 22, Sandtoft Road, Charlton, both in London. Dec. 20, 1932, No. 36121. [Class 40 (iii).] Single-current line signals are applied, after modification, to a double-current receiver. In a teleprinter of the kind described in Specification 404,382 and operated by currents of voice frequency, the plate circuit of rectifier V2 contains a condenser C3 in series with a neutral polarized relay or the like TP and a resistance R sufficient to prevent or reduce oscillations in the circuit, the whole being shunted by a high impedance Z. The voltage impulses in the anode circuit of valve V2 are single-current D.C. impulses, but the condenser C3 converts them into pairs of oppositely directed kicks which cause the armature of relay TP to operate as if in response to double-current signals. The circuit comprising the anode battery, condenser-shunted valve V2, and parts C3, R, TP is tuned to the signal frequency.
Patent GB-772843-A (GB)
Title: Improvements in or relating to valves
IPC: F16K3/12
Filed: 1953-12-30
Abstract: 772,843. Valve accessories. BRITISH PETROLEUM CO., and FRASER, D. S. D. Jan. 25, 1955 [Dec. 30, 1953], No. 36146/53. Class 135. In a tapered or parallel-faced gate valve, slipper members E<SP>1</SP>, E<SP>2</SP>, urged apart by springs K and upwardly by a spring M, are fitted beneath the gate member W so that when the gate is withdrawn from its seats S<SP>1</SP>, S<SP>2</SP>, the slipper members move upwardly and outwardly to protect the lower portions of the seats against abrasion by the liquid and particles carried thereby which flow at extremely high velocity through the narrow gap on the initial opening of the valve. The slippers are arcuate in shape and have an inner radius corresponding to the valve bore J.
Patent GB-1093783-A (GB)
Title: Device for the indication of rotation and deblocking of pumps
IPC: F04D15/00
Filed: 1965-08-24
Abstract: 1,093,783. Centrifugal pumps. SUNDSTRAND HYDRAULIC AB. Aug. 24, 1965 [Feb. 9, 1965], No. 36300/65. Heading F1C. [Also in Division G1] For indicating the direction of rotation of a pump shaft 2 and for setting it into rotation if it is stuck, a pin 4 is located in the hollow end of the shaft 2 and has a head 9 formed at its inner end for driving engagement with a socket 10 in the shaft 2 upon outward movement of the pin 4 but held disengaged therefrom when the pin head 8 is screwed on to a cylindrical projection of a plate 5, detachably secured to the end wall 1 of the pump housing. The pin 4 can slide and rotate in a bushing 6, held by an elastic tightening ring 7 and capable of limited radial movement. A seal 11 is also provided, the parts 9, 10 may be of square cross-section and the screw threaded connection between the head 8 and plate projection may be replaced by co-operating dogs.
Patent GB-1189446-A (GB)
Title: Antifoaming Compositions
Inventor: TUCKLEY EDWARD STANLEY GEORGE
IPC: C08L21/02
Filed: 1966-08-16
Abstract: 1,189,446. Antifoaming agents. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Aug., 1967 [16 Aug., 1966], No. 36633/66. Heading C3P. An antifoaming agent for addition in amounts of 0À25 to 1À0 wt. per cent to aqueous dispersions of synthetic polymers, e.g. latices of butadiene/ styrene and butadiene/acrylonitrile copolymers, comprises by weight (a) 5-50 parts of a light paraffin oil; (b) 1 part of a water-insoluble metallic soap; and (c) 1-2 parts of a condensate of ethylene oxide with a fatty acid, a hydroxylated fatty acid, a fatty alcohol or a higher alkylated phenol. 20 Parts of kerosine (boiling range 180-275‹ C.) containing 1 part of a condensate of one mole of ricinoleic acid with 2À5 moles of ethylene oxide is mixed with one part of aluminium stearate.