baber/WOPTO huggingface dataset:
Patent GB-1036175-A (GB)
Title: Improvements in or relating to polyurethane foam
Inventor: GARNETT EDWARD DEREK
IPC: C08G18/48
Filed: 1964-06-30
Abstract: A process for the preparation of a polyurethane foam by the "one shot method" comprises reacting an organic polyisocyanate or an organic polyisothiocyanate with a polyol having a hydroxyl number between 60 and 168 mg. KOH/g. prepared by reacting a 1,2-alkylene oxide which contains in its structure at least three carbon atoms with a nucleating agent under adduct forming conditions in the presence of an alkaline catalyst to give an intermediate product and then reacting the intermediate product under adduct forming conditions in the presence of an alkaline catalyst with a 1,2-alkylene oxide which contains in its structure at least one carbon atom more than the number of carbon atoms in the structure of the 1,2-alkylene oxide used to prepare the intermediate product.  The nucleating agent is defined as an organic polyfunctional compound containing at least two active hydrogen atoms, those preferred being polyhydric alcohols, but polyhydric phenols and polyamines may also be used.  In Examples 1 and 2 the polyol is prepared by reacting glycerol with propylene oxide to give an intermediate adduct which is reacted with a mixture of butene oxides containing mainly 1-butene oxide. Potassium is used as the alkaline catalyst.  The 1,2-alkylene oxide that is reacted with the intermediate adduct preferably contains not more than eight carbon atoms.  Water is used as the blowing agent and the preferred polyisocyanate is an 80:20% by weight mixture of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate.
Patent GB-260931-A (GB)
IPC: F42B4/00
Filed: 1926-10-28
Abstract: 260,931. Mork, C. Nov. 11. 1925, [Convention date]. Pyrotechnic devices. - Fireworks composition after compression is enclosed in a spiral of wire which prevents any burning particles or hot residues from falling off when the composition is burnt.
Patent GB-741524-A (GB)
Title: Improvements in or relating to methods and apparatus for shaping diaphragms
IPC: B29C35/02
Filed: 1953-10-02
Abstract: 741,524. Gas meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Oct. 2, 1953 [Nov. 26, 1952], No. 27136/53. Class 54. [Also in Group V] A diaphragm 2 for a gas meter consists of fabric woven from synthetic fibres (e.g. superpolyamides) coated with natural or synthetic rubbers.
Patent GB-883021-A (GB)
Title: Improvements in or relating to the production of graphite
Inventor: PRICE MICHAEL STUART THOMAS
IPC: C04B35/532
Filed: 1958-09-12
Abstract: A graphite article is produced by successively baking and graphitizing a mixture of artificial graphite, carbon black, and a carbonizable binder, substantially all of the graphite particles having a particle size below 1,000 microns but at least 50% thereof having a particle size above 50 microns and the carbon black having an average particle size of 0,2-0,7 micron. Preferably, substantially all the graphite particles have a particle size below 300 microns and the carbon black has an average particle size of 0,3 micron.  The ratio of graphite to carbon black may be 3-1 to 1-2.  The binder may be pitch or furfuryl alcohol optionally containing furfuryl aldehyde. From 21 to 23% of pitch, in conjunction with a ratio of graphite to carbon black of 2 to 1, or 18-20% of furfuryl alcohol, in conjunction with a ratio of graphite to carbon black of 3 to 2, is preferably employed.  Baking may be effected at a temperature up to 1,000 DEG C. Using pitch as binder, baking may be effected at a constant pneumatic pressure of at least 100 p.s.i.g. or at atmospheric pressure with mechanical restraint.  Graphitizing may be effected at a temperature of 2,000-3,000 DEG C.  The baked carbon may have a density of up to 1,79 gm./c.c. and the graphitized carbon up to 1,90 gm./c.c.  The Darcy fluid permeability of the graphitized carbon may be 0,07-0,2X10-12 sq. cm.  Examples are given.
Patent GB-303580-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/40
Filed: 1927-10-13
Abstract: 303,580. M-O Valve Co., Ltd., and Wigan, J. W. Oct. 13, 1927. Vacuum tubes.-A valve has a screening grid arranged between two or more electrodes and extending to the wall of the envelope, and a cap or cover which is permanently mounted on the envelope and consists of conducting material extending from a position near the screening grid so as to form an extension thereof. As shown, the screening grid consists of a ring 17 carrying a wire mesh 18 and extending beyond the anode 14, and the cap consists of a metal cylinder 19 which extends from the ring 17 and has an insulating base 20 carrying contact pins 21. The control grid consists of wire 11 wound around supports and enclosing a filament 6. The cap is mounted in a holder 23 having insulated spring contacts 25.
Patent GB-284749-A (GB)
Title: Improvements in advertising devices
IPC: G09F11/02
Filed: 1926-10-30
Abstract: 284,749. Morley, V. S. Oct. 30, 1926. Prisms and like elements, oscillating.-In advertising devices of the Jacob's ladder type the uppermost slat 1 is suspended from the ends of four pivoted levers 12, 13. which are oscillated by two cams 19, 21 mounted 180‹ apart on a uniformly rotating shaft 22. The cams mav each bear directly on the inner end of one lever, which in turn bears on the inner end of the opposite lever, or the cams may bear on spindles 17, 20 reciprocating in a guide 18 and furnished with jaws 16 which receive the inner ends of the levers 12, 13. The top slat 1 may be removably held in sockets 9 which are connected bv chains or tapes 10, 11 to the reversing mechanism.
Patent GB-450376-A (GB)
Title: Speed regulator for rotary piston pneumatic drilling machines
IPC: B23B45/04
Filed: 1935-10-02
Abstract: 450,376. Speed governors; rotary engines. FRANKFURTER MASCHINENBAU AKT.-GES. VORM. POKORNY & WITTEKIND, 2, Solmsstrasse, Frankfort-on- Main, Germany. Oct. 2, 1935, No. 27238. Convention date, March 20. [Classes 57 and 110 (ii)] The speed of a rotary piston pneu matic drilling machine is con trolled by a centri fugal governor 19 driven by gearing f and controlling a throttle valve 3 in the air supply con duit. A loading spring 8 rests or the valve 3 and its compression is varied by a screwed abutment 7 having a pointer 9 to indicate the speed at which the regulator is set.
Patent GB-1088222-A (GB)
Title: Product bagging machine
IPC: B65B25/18
Filed: 1965-06-28
Abstract: 1,088,222. Packing articles in bags. AMERICAN MACHINE & FOUNDRY CO. June 28, 1965 [Sept. 14, 1964], No. 27258/65. Heading B8C. Opening bags and inserting articles.-Sliced loaves or other articles to be bagged are delivered between the halves of an expansible scoop 114, 115 (Figs. 1 and 5) which has been moved to the right in Fig. 1 so that its forward end enters a bag 255 (Fig. 7) which has been opened by a jet of air from a nozzle 260. The scoop is then retracted, preferably with a slight contraction, while a retractable abutment holds the article so that the bag is pulled around it. The stack of bags 254 is carried manually to the machine joined by a device 258 formed with pins which pass through holes in flaps on the bags. The device 258 is locked in the machine by a spring-biased pawl 266 and the bags are torn from the device 258 when the scoop has entered fully into the bag and pushes against the bag bottom. Delivering the bagged articles.-After the scoop has retracted far enough to permit the bagged article to fall on to an inclined platform 175 (Figs. 1 and 10) it is swept from this platform by an oscillating pusher 155 (Fig. 10). A pusher conveyer 75 (Fig. 1) then delivers the bagged article to a pivoted bridge 303 which can yield, to discard the bagged articles, if the outlet from the machine is blocked. Levelling the stack of bags.-The bags 254 (Fig. 6, not shown) are carried by a table 210 normally held by a brake 241 against upward movement under the bias of a spring 209. Once during each cycle of the machine a stop 233 is positioned under the bags and the brake 241 is released. The brake may also be released by a handle 244. Feeding articles to the bagging station.-The conveyer 272 (Fig. 1) delivering the articles to the bagging station travels faster than the final conveyer 72 but has its pushers 277 more widely spaced: the rate of feed of articles is thus the same but the articles are delivered with impetus into the bagging scoop. Automatic stop mechanisms.-If no article to be bagged is detected by a fence 282 (Fig. 1) operating a limit switch, the jet of air for opening a bag is not operated, but the machine otherwise continues to operate normally. If, when articles to be wrapped are available, no bag 255 (Fig. 6) is present to be inflated, a microswitch 228 normally operated by an arm 232 resting on the inflated bag causes the machine to stop. Manual operation.-Manual switches are provided for operating the machine through less than a full cycle and for checking the air jet for opening the bags.
Patent GB-428268-A (GB)
Title: Improvements in or relating to the construction of carbonising chambers, retorts and the like apparatus for the heat treatment of carbonaceous materials
IPC: C10B29/08
Filed: 1934-09-22
Abstract: 428,268. Carbonizing-apparatus. GAS CHAMBERS & COKE OVENS, Ltd., and RITSON, F., Artillery House, Artillery Row, Victoria Street, London. Sept. 22, 1934, No. 27282. [Class 51 (ii)] In a coke oven, retort, or like setting, the tie-rods a connecting the vertical buckstays h are hollow and are cooled by the passage of air both through and around them. Each tie-rod is enclosed in a tube d of heat-insulating material embedded in the brickwork g of the setting and of sufficient diameter to provide an annular space c for the passage of cooling air around the rod. The air may be supplied to the rod a and space c under pressure or may be induced from the atmosphere by leaving one end open and providing, at the other end, connections e to a source of draught such as an exhaust fan, a waste gas flue, or the chimney stack f.
Patent GB-940169-A (GB)
Title: A process for preventing darkening and precipitates in photographic developers
IPC: G03C8/24
Filed: 1961-07-27
Abstract: Compounds of the following formula <FORM:0940169/C2/1> wherein X is sulphur and R1 is alkyl, aryl, cyclo-alky or aralkyl which may be substituted by halogen or alkoxy, are prepared by reacting 2,5-dimercapto-1,3,4-thiodiazole with a halogeno hydrocarbon in the presence of an alkali metal hydroxide.  Compounds of the above formula wherein X is NH may be prepared by reacting the appropriate thiosemicarbazide with carbon disulphide.
Patent GB-251867-A (GB)
Title: Improvements in or relating to lock nuts for bolts, studs and the like
IPC: F16B39/36
Filed: 1925-10-31
Abstract: 251,867. Brooks, A. A. July 20, 1925, [Convention date]. Locking nuts.-In a lock nut comprising an outer member a having a tapered hole, and a tapered inner member e turning with the outer member and threaded to engage a bolt, the tapered surfaces of the members a, e are stepped at h to form interengaging shoulders for retaining the inner member within the outer one. In one form, Fig. 1, the member e is divided by a saw-cut g and has a key j engaging a keyway d in the member a. The key is formed by forcing up the metal from the surface of the member e, either by a press operation or a partial milling'and rolling operation. The saw-cut may serve the purpose of a keyway, or the key and keyway may be wedge-shaped.
Patent GB-1300572-A (GB)
Title: Domestic food treatment appliance
Inventor: NEVISON JAMES MICHAEL
IPC: A47J43/04
Filed: 1969-05-29
Abstract: 1300572 Mixing apparatus; coffee mills KENWOOD MFG (WOKING) Ltd 9 April 1970 [29 May 1969] 27370/69 Headings B1C and B2A [Also in Divisions F1 and F2] A coffee mill or liquidiser comprises a casing 12 having a slidable inner drum 11, a detachable lid 14, and a driven shaft 18 with a cutter 19 protruding through the base of the drum, the lower external end of the shaft terminating in a coupling member 20 which is arranged in use, by attachment and depression of the lid 14, to co-operate with an external coupling member 21 but which when the lid is not engaged is prevented from coupling by the action of helical spring 13, loacted between the drum 11 and casing 12. The lid may be locked to the casing by a bayonet connection 15, 16. In a modification, the greater part of the floor of the casing 12 is removed so facilitating complete removal of the inner drum, shaft and coupling member, the return spring 13 in this case is supported on a remaining floor segment (33) Fig. 3 (not shown) and on the upper faces of downwardly projecting ribs (28) arranged around the rest of the circumference of the lower casing 25. The external coupling member may be part of an isolated drive motor or auxiliary drive of a domestic mixing machine. The lid may be of sufficient mass to cause co-operation of the coupling members without locking the drum and casing.
Patent GB-642155-A (GB)
Title: Improvements in or relating to refrigerated vehicles
IPC: B61D27/00
Filed: 1947-10-13
Abstract: 642,155. Refrigerating. STANDARD CAP & SEAL CORPORATION. Oct. 13, 1947, No. 27396. Convention date, May 14, 1946. [Class 291 [Also in Group XXIX] An absorption refrigerating system cooling the storage container 10 of a refrigerated vehicle comprises evaporators 17 located near the ceiling connected by headers 14, 16 and pipes 13, 15 to. tanks 12 which are fed with liquid refrigerant by pipes 19 from tanks 20, 21 and from which vapour flows by pipes 29 to pairs of absorbent holdsrs 30, 31, valves 24 being interposed in the pipes 19 to control the liquid flow in response to the liquid level in the tanks 12. Valve means 36 are interposed in the pipe 29 to control the vapour. flow in response to the temperature in the container 10 and to the pressure in the evaporators 17. Clamped to a nipple 26, communicating with the tank 12 is a bulb 27 connected to a capillary tube 28 the pressure in which influences a diaphragm in the valve 24. The diaphragm; through rods operates a needle valve to control the flow of liquid through the pipe 19, a filter being incorporated within the valve 24. The valve means 36 in the conduit 29 comprise a main control valve 39, Fig. 4, influenced by refrigerant vapour pressure which is communicated through a valve 40 influenced by a thermostat bulb 38 within the chamber. 10. Refrigerant vapour flows through a pipe 75 connected to the pipe 29 to the valve 40 in which it can flow to a pipe 76 between a diaphragm 67, Fig. 7, and seating 65. The diaphragm 67 is actuated by rods 72 moved by a diaphragm 71 which. is itself moved by the pressure existing in a chamber 73 in communication with the thermostatic element 37, 38. Refrigerant vapour can flow from the pipe 76, through a chamber 61 in the valve 39, past the seating 56 of a spring-loaded diaphragm 57 to actuate a piston 46 which operates the members 44, 48 of the main valve 39 in the refrigerant vapour pipe 29. Thus if the temperature rises in the chamber 10, the bulb 38 will operate the valve 40 to admit refrigerant vapour to the pipe 76 but if the refrigerant vapour pressure is low (i.e. the evaporators are at a low temperature) the refrigerant vapour will be unable to force up the diaphragm 57: in the valve 39 and so this valve will remain closed. If, however, the evaporator 17 is itself warm the vapour pressure will be high and will operate the diaphragm 57 and hence open the valve 39 to reduce the vapour pressure in the pipe 29 and so increase the rate of evaporation. In a modification (Fig. 2, not shown) the refrigerant holders. 20, 21 are disposed within the container 10 and only one tank 12 is provided to supply a vertical array of evaporators 17 through the connections 13, 15 and the headers 14, 16. Connections are provided for connecting the holders 20, 21; 30, 31 to a stationary charging plant. Specification 639,271 is referred to.
Patent GB-1505767-A (GB)
Title: Weed killing apparatus
IPC: A01M21/04
Filed: 1976-09-22
Abstract: 1505767 Destroying weeds H J PAINE 22 Sept 1976 [30 June 1975] 27511/75 Heading A1E Apparatus for destroying weeds comprises a flat plate I of steel or aluminium heated by an electric element 7. The plate has turned up edges 5 to facilitate movement and is formed on its bottom with protrusions for disturbing the soil and exposing the roots of plants. A pivoted handle 3 is provided. A thermostat 10 determines the temperature of the plate.
Patent GB-1253628-A (GB)
Title: Container having a frame and a frame for such a container
Inventor: SCHWEIZER ANTOINETTE MARGARET
IPC: A45C13/04
Filed: 1969-05-30
Abstract: 1,253,628. Magnetic fasteners. A. M. SCHWEIZER. 30 May, 1969, No. 27532/69. Heading E2A. [Also in Division A4] A frame for a container comprises a pair of frame parts 11, 12 connected for pivotal movement between an open position, and a closed position in which a U-shaped surface of one frame part lies in juxtaposition with a corresponding U-shaped surface of the other frame part, each frame part being composed of a plastics or rubber material mixed with a ferromagnetic powder, the powder having been permanently magnetized in such a way that said surfaces are of opposite polarity throughout their length, so that the frame parts are urged magnetically towards their closed position. The frame can have an auxiliary mechanical fastener 20, 21.
Patent GB-1177587-A (GB)
Title: Locking Hard-Shell Capsule.
IPC: A61J3/07
Filed: 1968-06-10
Abstract: 1,177,587. Pharmaceutical capsules. PARKE, DAVIS & CO. 10 June, 1968 [29 April, 1968], No. 27544/68. Heading B8C. A hard shell pharmaceutical capsule comprises a cap 11 and body 12, each with closed ends and each being provided with a groove 19 and 19a which co-operate to lock the cap and body together when the capsule is fully closed (see Fig. 2, not shown). The cap also has at least one, preferably two or more, indentations 24 composed of an indent flat and slopes (see Figs. 5 and 5a, not shown) which co-operate with the groove on the body as shown in Fig. 3 to give a " semi-locked" position of cap and body in which they are held together without deformation and from which they may be separated without damage to the capsule. In the fully closed or locked position, the indent frictionally grips and distorts the capsule wall.
Patent GB-1031056-A (GB)
Title: Sample pick-up for gas chromatography
IPC: G01N30/12
Filed: 1963-07-11
Abstract: 1,031,056. Injecting gas chromatography samples. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. July 11,1963 [July 13,1962], No. 27562/63. Heading B1L. Liquid samples for gas chromatography are injected into an evaporating device consisting of a block (10) having a heater (26) and having formed therein a larger evaporation chamber (12) into which the sample is injected and the carrier gas is admitted, connected (via opening 13) to a smaller evaporation chamber (14) which has an outlet (70) for the vaporized sample. As shown in Fig, 1, to which the numerals relate, the liquid samples may be admitted through a self-sealing diaphragm associated with channel 46, and a further self sealing injection diaphragm 56 may be provided for use with smaller samples, in the smaller evaporation chamber, which is preferably filled with heat-conducting filler bodies. In place of manual injection through a diaphragm, suitable bores and connectors (not shown) are provided for use with an automatic sampling device. The carrier gas is admitted through line 66 into the injection device 34 (the construction of which is the same as that more fully shown in connection with device 40). The sample is injected by means of a needle guided through the diaphragm by guide 58 and through channel 46. The chambers are cylindrical recesses closed by plugs 16,18. A further heater (not shown) is provided for theupper part of the apparatus. Vapours leave the device through a duct (not shown) which first runs horizontally from chamber 14 and then emerges vertically from the upper face of the block.
Patent GB-1164352-A (GB)
Title: Optical Filters.
Inventor: WARREN STANLEY WILLIAM
IPC: C03C17/36
Filed: 1967-06-16
Abstract: 1,164,352. Coating with Si, Ge, Silicon nitride and titania. STANDARD TELEPHONES & CABLES Ltd. June 16, 1967, No.27785/67. Heading C7F. [Also in Division G2] An optical filter has a transparent substrate with at least one layer of germanium or silicon and at least one further layer of silicon nitride or titanium dioxide. In making an infrared filter, a series of such layers may be deposited by passing silane from a cylinder 21, Fig. 2, through a flowmeter 23 to a reaction chamber 22 of dielectric material, a r.f. power source 29 being connected thereacross by plates 30. Magnets 32 provide for the establishment of a plasma controlling field. After the layer of silicon has been deposited on glass substrate 31, anhydrous ammonia is introduced from cylinder 24 so that silicon nitride is deposited. The process is then repeated.
Patent GB-716333-A (GB)
Title: Improvements in and relating to 1:8-dihydroxy-5-nitro-4-amino-anthraquinone compounds
IPC: C09B1/515
Filed: 1951-11-28
Abstract: A mixture of o- and p-aminophenylethyl alcohol is made by nitrating phenylethyl alcohol acetate, reducing the nitro group to an amino group and hydrolysing.  m-Amino phenylethyl alcohol is made by reducing m-nitrophenylacetic acid in ethanol over Raney nickel to the amino derivative and reducing the latter in boiling ether with a large excess of lithium aluminium hydride. 4-Chloroaminophenylethyl alcohol is made by nitrating p-chlorophenylethyl acetate with nitric acid in acetic anhydride, hydrolysing the nitro product in alcoholic hydrogen chloride and reducing the product of hydrolysis in ethanol over Adam's catalyst.  The derivatives are used in the production of anthraquinone dyes (see Group IV (c)).ALSO:The invention comprises dyes of formula <FORM:0716333/IV(c)/1> where R is a hydroxyethyl phenyl group which group may be esterified and substituted in the phenyl group.  They may be made by condensing 4, 5-dinitro-1, 8-dihydroxy-anthraquinone with an aminophenylethyl alcohol or an alkyl ester thereof and hydrolysing the product.  Reaction is preferably effected in a solvent many of which are specified representative being nitrobenzene, quinoline, quinaldine, n-amyl alcohol, butanol, ethanol, pyridine, 2-methyl-5 ethyl pyridine, diphenyl amine, m-cresol, dichlorbenzene, nitrobenzene, phenol N, N-dimethyl acetamide and N, N-dimethyl formamide the last two solvents being preferred.  Temperatures mentioned are about 25-200 DEG C, preferably 110-170 DEG C.  An excess of aminophenylethyl alcohol or an alkyl ester thereof is preferred e.g. 2 mols of alcohol are reacted with one mol of the anthraquinone.  The products are used for dyeing cellulose alkyl carboxylic acid esters of 2-4 carbon atoms in the acid groups thereof, especially cellulose acetate, blue to greenish-blue shades.  Hydrolysed and unhydrolysed cellulose acetate, propionate, butyrate, acetate-propionate and acetate-butyrate are specified fibres for dyeing which may be effected at 70-90 DEG C, the dye being added as an aqueous suspension prepared from a paste of the dye with a dyeing agent such as a methylated oil, soap or sodium lignin sulphonate and dispersing the paste in water.  1/3 -3 per cent of dye may be used by weight of textile, in Examples 4, 5-dinitro-1, 8- di-hydroxy-anthraquinone is condensed with o, m and, p-aminophenylethyl alcohol, mixed o and p-aminophenylethyl alcohols and mixed acetate thereof, p-aminophenylethyl alcohol acetate, 2-methyl-3-aminophenylethyl alcohol and 4-chloro-aminophenylethyl alcohol, the acetate being hydrolyzed to the alcohol with hydrochloric acid.
Patent GB-382049-A (GB)
Title: Improvements in metal ceilings
IPC: E04B9/04
Filed: 1931-10-08
Abstract: 382,049. Metal ceilings ; tiles. HEYMANN, M., 29, Hanover House, Regents Park, London. Oct. 8, 1931, No. 27902. [Classes 20 (iv) and 87 (i).] Rectangular metal plates for constructing ceilings are provided over the whole surface with shallow and narrow grooves running parallel to the sides, thus forming rectangles of gradually decreasing size. The plates may abut, or the end grooves G on opposite sides may be continued to the edges so as to overlap, as shown in Fig. 5, or run into one another as in Fig. 6.