baber/WOPTO huggingface dataset:
Patent GB-634608-A (GB)
Title: Improvements in or relating to tubular heat exchange apparatus
IPC: F28D7/16
Filed: 1947-10-23
Abstract: 634,608. Tubular heat-exchange elements. HUET, A. Oct. 23, 1947, No. 28345. Convention date, Oct. 23, 1946. [Class 64(iii)] Relates to heat-exchange apparatus comprising a group of tubes 4, extending between tube plates 2, 3, and disposed within a casing 1, one fluid flowing through the tubes and another fluid flowing over the tubes, and in which ducts 5, 6 are provided for the entry and exit respectively of the fluid flowing through the tubes. According to the invention, fluid deflecting devices 10, 13 are provided at the ends of the tubes to facilitate the entry and exit of the fluid flowing therethrough, the fluid deflecting devices at the inlet ends of the tubes comprising relatively short hollow cap-like members 10 of more or less hyperbolic conoid section, projecting from those portions of the tube plate obtaining between the inlet ends of the tubes, and having depressions in the surfaces of their portions nearer the tube plate conforming with the shape of the entry ends of the tubes. The deflecting members 13 serve to cause a gradual blending of the fluid streams issuing from the tubes and are, at their tube plate ends, shaped similarly to the members 10 and are pointed at their free ends and taper in longitudinal section in the manner of the trailing portion of an aerofoil. They may be shaped to conform to the outlet duct 6. The deflecting members 10 may be individually attached to the adjacent tube plate or all the members may be formed as a single unit thereafter attached to the tube plate. In a modification the deflecting devices 10 may be spaced from the tube plate and each have a central orifice, 11 (Fig. 5) and be equipped internally with fluid deflecting means 12, operating in the manner described in Specification 471,342, [Group XXXIII]. Members 9 (Fig. 1) may be provided in the inlet duct 5 to divide the fluid flowing therethrough and to facilitate its change of direction at the bend.
Patent GB-723718-A (GB)
Title: Improvements in or relating to dentifrices containing fluorides
IPC: A61K8/21
Filed: 1952-11-11
Abstract: A therapeutic dentifrice comprises a water-soluble inorganic fluoride as an essential fluoridising ingredient and microcrystalline aluminium hydroxide as an essential cleansing and polishing agent, any other cleaning and polishing agent present being of such a nature as not to react with the water soluble inorganic fluoride to form a water insoluble compound.  The dentrifice contains 0.1 to 2.0 per cent. fluoride, and microcrystalline aluminium hydroxide in the following percentages (a) powder 90 to 95, (b) paste 25 to 50 and (c) liquid 25 to 30. The microcrystalline aluminium hydroxide may be replaced in part by abrasives of larger particle size e.g. alumina and aluminium hydroxide.  Specified fluorides are sodium fluoride, potassium fluoride and stannous fluoride.  Optional ingredients are: (a) surface active agents e.g. soap, sodium lauryl sulphate, sodium lauryl sulphoacetate; amine and metal salts of alkyl sulphates, sulphonated fatty alcohols, aliphatic sulphonic acids and aliphatic substituted aromatic sulphonic acids; fatty acid amides of dialkylaminoalkyl amines and tertiary amino alkyl esters.  (b) flavouring agents e.g. vanillin, oils of cinnamon, clove, anise, fennel, lavender and eucalyptus, thymol, menthol, camphor and other terpenes (c) binders, excipients and lubricants e.g. glycerin, propylene glycol, gum karaya, Irish moss, gum acacia, tragacanth, agar agar, salts of carboxymethyl cellulose, sorbitol citrate; diethylene glycol diborate, mannitol oleate, pectin, sorbitol syrup, corn starch, glycerite of starch, glycerite of sodium stearate, sodium alginate, gelatin, glycols, fatty acid esters of glycerin and glycols, mineral oil, petroleum and alcohol.  (d) sweetening agents such as saccharin, sucrose, starch syrups, honey, dulcitol and lactose.  (e) preservatives such as methyl phydroxybenzoate and bis (3, 5, 6 trichloro-2-hydroxy phenyl) methane.  Liquid and paste dentifrices are preferably adjusted to pH 4.0 to 9.0, and in particular to H p5.0 to 7.5 where the fluoride is an alkali metal fluoride, and to pH 4.0 to 5.5 in the case of stannous fluoride. Specification 633,845 is referred to.
Patent GB-736812-A (GB)
Title: Improvements in or relating to corrosion inhibited oil compositions
IPC: H01B3/22
Filed: 1952-11-11
Abstract: An oil composition consists of a major proportion of mineral oil, a proportion, up to 10 per cent by weight, of a higher fatty acid ester of a polyoxyalkylene ether of a hexitol and, optionally, minor proportions of oil detergents and/or antioxidants.  The higher fatty acid esters act as corrosion inhibitors and, when the polyoxyalkylene radicles are polyoxyethylene, have the formula <FORM:0736812/III/1> wherein R represents the hydrocarbon skeleton of a hexahydric alcohol such as sorbitol, mannitol or dulcitol, R1 represents the acyl radicle of a fatty acid containing 12-18 carbon atoms, n is 6-12, x is 4-6, and the number of carbon atoms in (OR1)x is greater than 6n. Suitable higher fatty acid esters are the tetra-, penta-and hexa-laurates, palmitates, oleates and stearates of the hexa(hydroxyethyl)ether of sorbitol; the tetrato hexa-oleates and stearates of polyoxyethylated mannitol containing 10 oxyethylene groups per molecule; the penta-and hexa-oleates and stearates of polyoxyethylated sorbitol containing 12 oxyethylene groups per molecule; and the oleates of oxyethylated sorbitol containing 10-12 oxyethylene groups per molecule.  Mixed esters obtained by the fatty acid esterification of mixtures of polyalkylene glycols and hydroxypolyoxyalkylene hexitols produced by the action of alkylene oxides on aqueous solutions of hexitols may also be employed.  Oil detergents mentioned are sulphonates of petroleum fractions, while antioxidants mentioned are aryl or alkylaryl phosphites and organic amines.  The mineral oil may be a lubricating oil, fuel oil, diesel oil, marine oil, kerosene, spindle oil or gasoline.  In examples mineral lubricating-oil compositions are described which contain the tetra - stearate, tetra - oleate, tetra - wool - wax-acids - ester, penta - laurate or penta - oleate of hexa-oxyethylene sorbitol, the tetra - oleate of deca-oxyethylene sorbitol, or the tetra-oleate, penta - oleate, hexa - stearate or hexa - oleate of dodeca-oxyethylene sorbitol. In further examples light mineral transformer oil compositions are described which contain an organic amine oxidation inhibitor known under the Trade name "Ortholeum 300" and the hexaoleate of dodeca-oxyethylene sorbitol or the tetra-oleate of hexa-oxyethylene sorbitol or (for comparison purposes) sorbitan mono-oleate.
Patent GB-358699-A (GB)
Title: Improvements in and relating to tool holders for lathes and like machine tools
IPC: B23B29/06
Filed: 1930-09-23
Abstract: 358,699. Turning. BERLIN, L. J., 38, Petworth Street, Cheetham, Manchester. Sept. 23, 1930, No. 28419. [Class 83 (iii).] A tool-holder for the crossslides of automatic or turret lathes &c. comprises a bracket a for attachment to the cross-slide and a plate b secured thereto by a single bolt i and carrying two pins c, d which engage intersecting grooves f, g, in the face of the tool carrier e. One or more tools such as a cutting-off tool h and a turning tool h<1> are secured in the carrier by studs u and the arrangement is such that the centres of the pins c, d, the point of intersection of the grooves f, g and the cutting point of the tool h all lie on a circle as shown in Fig. 1, On loosening the nut m of the bolt i the carrier may be moved on the pins c d to vary the rake angle of the tool without altering its point of contact with the work, a spring washer j being provided to maintain a yielding pressure between the parts during adjustment. To vary the height of the tool the plate band carrier are rotated about the bolt i by means of a screw o screwing in a lug b<1> of the plate and engaging the bracket a with its ends. To set the tools to the correct projection from the carrier a gauge is used comprising a post q, Fig. 6, mounted in a hole r in the plate and provided with an arm s and an adjustable screw t for engaging the ends of the tools h, h<1> respectively, The plate and carrier are provided with pins and grooves to allow the tool to project from either side for use at the front or rear of the lathe and the device may be used with work rotating in either direction by reversing the carrier. The Provisional Specification states that the grooves may be formed in the plate and the pins attached to the carrier, or each may have one groove and one pin.
Patent GB-730267-A (GB)
Title: Improvements in rubber treatment
IPC: C08K3/04
Filed: 1953-10-15
Abstract: Butyl rubber and at least 25 parts of reinforcing carbon black per 100 parts of the rubber are heated, with or without simultaneous mastication, at at least 300 DEG  F., vulcanizing and other ingredients incorporated, and the mixture vulcanized.  A promoter of the reaction, e.g. tertiary-butyl peroxybenzoate; 2,2 - bis - (t. - butyl peroxy) butane, mercuric acetate and mercuric 2-ethyl-hexanoate may be present.
Patent GB-335058-A (GB)
Title: Improvements in and relating to mechanisms for changing gear
IPC: F16H63/14
Filed: 1929-09-20
Abstract: 335,058. Meadows, R. Sept. 20, 1929. Controlling variable-speed gearings.-In order to impart stepped angular displacements in both directions to a gear-controlling drum A, a threearmed lever C is used pivoted at E upon a loose revoluble housing or pivot-block K. The outer arm of lever C is moved up or down manually so as to bring a dog end D on one of the inner arms D<1> first into engagement with a notch B in the drum A, and then to turn the drum one step in the selected direction. Such steps may be repeated. The arm C is returned to mean position by spring means such as a pair of levers H pulled together by a spring J upon a pair of flats N on the block K. A modification is described in which the dog ends D are swung inwardly into engagement, the notches D being formed on the outer surface of drum A.
Patent GB-1137626-A (GB)
Title: Improvements in or relating to the manufacture of electrical cable insulated with a synthetic plastics material
Inventor: TRILL SIDNEY WILLIAM
IPC: B29C48/09
Filed: 1966-06-24
Abstract: 1,137,626. Coating cores by extrusion. PHELPS DODGE COPPER PRODUCTS CORP. 24 June, 1966, No. 28543/66. Heading B5A. [Also in Division H1] Voids between a stranded or single core conductor and an extruded plastics sheath are largely prevented by passing the newly extruded sheath from an extruder 3 into a chamber 5 containing pressurized steam at a temperature above 212 F., but below the temperature of the sheath, and from thence into. water chambers defined by interface 8 and outlet 11 and seal 17 respectively. The upstream chamber includes a water level control 9 and contains essentially stagnant water at a temperature, e.g. within the range 200 F.-120 F. The downstream chamber is supplied with water, which may be at ambient temperature, from a pump 14 and at a pressure equal to the steam pressure. Seal 17 may provide water lubrication for the exiting conductor and sheath. A conventional take-off mechanism comprises caterpillars 12, 13 and a reel 18. Plastics mentioned are polyethylene and polypropylene, or mixtures thereof with polyisobutylene, PVC, and as a thermosetting resin, cross-linked polyethylene. Further, a layer of thermoplastic or thermosetting semi-conducting material, formed, e.g. by the addition of carbon black, may be extruded on to the conductor before addition of the sheath proper. In one example a semi-conducting thermosetting cross-linked polyethylene layer is sheathed with thermosetting polyethylene and in another, a semiconducting layer is sheathed with thermoplastic polyethylene.
Patent GB-510341-A (GB)
Title: A method of protecting metal articles against seaweeds and rust
IPC: C09D5/16
Filed: 1937-10-20
Abstract: 510,341. Coating surfaces ; coating-compositions. RYCHLOWSKI, T. Oct. 20, 1937, No. 28583, Void. Convention date, Oct. 20, 1936. [Class 95] The walls of ships, metal articles &c. are protected against rust, seaweed growth thereon &c. by painting with an ordinary paint or a hot molten mixture of resin, coal-tar, varnish and cement, immediately whereafter the painted surface is bespread with graphite and rubbed with soft fabric to produce a smooth surface. Instead of bespreading the painted surface with graphite, it may be repainted with a mixture of graphite added to a solution of resin in alcohol or benzol.
Patent GB-424077-A (GB)
Title: Improvements in or relating to mud guards for motor road and like vehicles
IPC: B62D25/18
Filed: 1933-10-17
Abstract: 424,077. Lateral - splash guards. SIMPSON, N., and SIMPSON, F. G., The Cedars, Moorlands Road, Dewsbury, Yorkshire. Oct. 17, 1933, No. 28670. [Class 136 (i)] A lateral-splash guard, disposed at the side of the wheel, is resiliently mounted to permit a vertical sliding movement, and the lower part of the guard is arranged to move upwardly and outwardly, when an obstacle is encountered or when the tyre is deflated. The invention is shown applied to a guard mounted for vertical and swinging movements as described in Specification 388,678, the lower part 2 of the guard being hinged at 12 to the main part 1. The part 2 has normally a slight initial outward inclination, stops 13 locating it in this position. A spring anchored in a recess retains the part 2 against the stops, and comprises two axially spaced coils 16 having downwardly directed parts 14 joined by an integral cross piece 15. A rubber or other flexible strip 4 depends from the lower part of the member 2.
Patent GB-205345-A (GB)
Title: Cooling or heating bandage of porous material
IPC: A61F7/10
Filed: 1922-10-23
Abstract: 205,345. Kirschmann, L. Oct. 23, 1922. Head coverings of special materials.-A cooling or heating bandage, which may be made in the form of a cap for protection against sunstroke is made of a number of beads a and perforated discs b of magnesia or other porous material, the beads being threaded together and the discs sewn through their perforations. The bandage may be formed only of discs as shown in Fig. 4.
Patent GB-790359-A (GB)
Title: Improvements relating to joints or couplings in axle shafts of motor vehicles
IPC: F16D3/44
Filed: 1956-09-20
Abstract: 790,359. Universal joints. DAIMLER-BENZ AKT.-GES. Sept. 20, 1956 [Sept. 22, 1955], No. 28823/56. Class 80 (2). In a double universal joint comprising forks 5, 51 pivoted together through needle bearing rollers 13, so as to be rockable in one plane, and pivoted on shaft ends 1, 2 by bolts 12, 121 so as to be rockable in planes perpendicular to the first-mentioned plane, the shaft ends being centred in relation to one another by a ball end 3 and socket 4, the two forks 5, 5<SP>1</SP> are identical, each having a bearing ring 8 or 8<SP>1</SP> on one arm and a pivot pin 9 or 9<SP>1</SP> on the other arm, the pin of one fork being received in the bearing ring of the other fork, with interposed loose needle bearing rollers 13. The latter are held in place by nuts 14 screwed on the ends of the pins 9, 9<SP>1</SP>.
Patent GB-1535243-A (GB)
Title: Pushbutton electric switches
IPC: H01H13/50
Filed: 1976-07-12
Abstract: 1535243 Retractive switches RAFI BAIMUND FINSTERHOLZL ELEKTROTECHNISCHE SPEZIALFABRIK 12 July 1976 [14 July 1975] 28913/76 Heading H1N A push-button switch comprises a plurality of contact housings 5 fixed beneath a push-button housing 1, 2, by means of two metal strips 10 which pass through apertures in the housings 5 which enclose fixed contacts 14 having terminal lugs 19 and moving contact bridges 14<SP>1</SP>, each housing 5 comprising a top part 3 and bottom part 4 having on their upper and lower faces a channel-like depression 13 surrounding one aperture for a metal strip 10, and a hollow projection 11, 12 and 11<SP>1</SP>, 12<SP>1</SP> surrounding the other aperture for a strip 10 and capable of mating engagement in a depression 13 whereby the housings can be assembled in abutting relationship. As shown, housings 5 are of cruciform configuration with the apertures for strips 10 in diametrically opposed arms and the fixed contacts 14 in the other arms. The push-button 7 operates a non-rotatable bolt 15 against spring pressure and thus actuates the contact bridges 14<SP>1</SP>.
Patent GB-362563-A (GB)
Title: Improvements in and relating to electric control systems for elevators and the like
IPC: B66B1/44
Filed: 1930-09-26
Abstract: 362,563. Lifts. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Whiting, M. A.; 1698, Rugby Road, Schenectady, New York, U.S.A.) Sept. 26, 1930, No. 28916. Convention date, Sept. 26, 1929. [Classes 78 (ii) and 104 (ii).] Electric plant.-Apparatus for levelling lifts comprises a source of light 29 and light-sensitive devices 25, 26 carried by the lift, and opaque screens 36, 37 fixed in the hatchway so as to intercept the light as the lift approaches a floor. The lift is driven by a Ward-Leonard set 11, 12, 13. For downward movement, a manual controller 20 is turned to bridge contacts 68 thereby energizing generator field contactor 17 and brake relay coil 72, the latter causing brake 70 to be removed. Increased speed is obtained by further movement of the controller 20 to exclude field resistance 19. As the floor at which stoppage is desired is approached, the controller 20 is returned to the "off" position, contactor 17 opens and regenerative braking occurs, decay of the generator field being modified by a short-circuited winding 22. The brake relay is held up by its coil 73 until the speed is sufficiently low for the brake 70 to be applied. As the lift nears the floor, screen 36 intercepts the light to the device 25, causing an associated valve 23 to become nonconducting, with consequent deenergization of a relay 27. Closure of the lower contacts of this relay, causes re-energization of contactor 17 over the upper contacts of a relay 28, thus reinstating driving at the slowest speed, until relay 28 is de-energized by screen 37 intercepting the light to device 26. If the lift had been travelling at too high a speed when the screen 36 intercepted the light, coil 76 energized by the regenerated voltage would have prevented reclosure of contactor 17. The disposition of the devices 25, 26, 29 on the lift and the profile of the screens 36, 37 is shown in Fig. 4. Each device 25, 26 is displaceable about a pivot 43, 44 in proportion to the speed of the lift by means of a tachometer generator and a torque motor. Thus the higher the speed of approach to the floor, the sooner is the light to the second device intercepted and the slow-speed drive is cut off and the brake is applied earlier. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is applicable to railway turntables. This subject-matter does not appear in the Specification as accepted.
Patent GB-1176616-A (GB)
Title: Adjustable Cams
IPC: F16H53/04
Filed: 1968-06-18
Abstract: 1,176,616. Cams. U.S. BAIRD CORP. 18 June, 1968 [7 Sept., 1967], No. 29025/68. Heading F2K. An adjustable cam comprises a hub 10 having a peripheral flange 14 on the opposite sides of which are formed annular raised tracks 16, 18, a plurality of pairs of substantially similar cam elements 38b, 38b<SP>1</SP> slidably disposed on the tracks 16, 18, arcuate clamping bars 66, 661 having arcuate slots 68, 681 through which pass screws 70 securing the cam elements 38b, 38b<SP>1</SP> to the respective bars 66, 66<SP>1</SP>, and cup-shaped gears 30, 34 clamping the cam elements to the hub 10 by means of screws 32, 36. Low dwell portions between the high dwell portions are defined by an arcuate member 74 held in position by screws 76. The cam also comprises arcuate cam members 20, 22, 24, 26 similar to those shown in Specification 1,099,987.
Patent GB-377032-A (GB)
Title: Improvements relating to acetylene gas control valves for use in connection with oxy-acetylene blow pipes
IPC: G05D16/06
Filed: 1931-10-20
Abstract: 377,032. Fluid-actuated valves. BRITISH OXYGEN CO., Ltd. and DRINKWATER, A. F., Rosehill Works, Polmadie, Glasgow. Oct. 20, 1931, No. 29090. [Class 135.] A valve device for controlling the supply of acetylene to oxy - acetylene blow pipes is controlled by a diaphragm subject to the pressure in the outlet so that the valve is closed when the pressure rises consequent to the closing of the blow pipe control valve. The valve member 9 is adjustably mounted in a tubular member 10 slidable in a guideway 11 and detachably connected at 12 to the diaphragm 6. The valve member is adjustably pressed towards its seat 7 which has a port 8 connected to the inlet 4, by a spring 14.
Patent GB-390867-A (GB)
Title: Process for the production of an uninflammable or difficultly inflammable solution of nitrocellulose
IPC: C08J3/09
Filed: 1931-10-20
Abstract: Non-inflammable solutions, plastics, lacquers, &c. are produced by dissolving a degraded cellulose nitrate of low viscosity (obtained by boiling primary cellulose nitrate with water or dilute acids) in a solvent mixture containing carbon tetrachloride in amount at least twice that of the actual solvent present.  Known solvents such as ethyl acetate, acetone, or amyl acetate may be employed with the carbon tetrachloride, together if desired, with the customary plasticizers.  Spraying lacquers, made up with cellulose nitrate of the above mentioned type, may be diluted with carbon tetrachloride to give a non-inflammable product.  The Specification as open to inspection under Sect. 91 relates also to the use of carbon tetrachloride in admixture with other halogenated hydrocarbons, for example, methylene chloride or ethylene chloride.  This subject-matter does not appear in the Specification as accepted.ALSO:Non-inflammable solutions, plastics, lacquers, &c., are produced by dissolving a degraded cellulose nitrate of low viscosity (obtained by boiling primary cellulose nitrate with water or dilute acids) in a solvent mixture containing carbon tetrachloride in amount at least twice that of the actual solvent present.  Known solvents such as ethyl acetate, acetone, or amyl acetate may be employed with the carbon tetrachloride, together if desired, with the customary plasticizers.  Spraying lacquers, made up with cellulose nitrate of the above mentioned type, may be diluted with carbon tetrachloride to give a non-inflammable product.  The Specification as open to inspection under Sect. 91 relates also to the use of carbon tetrachloride in admixture with other halogenated hydrocarbons, for example, methylene or ethylene chloride.  This subject-matter does not appear in the Specification as accepted.ALSO:Non-inflammable solutions, plastics, lacquers, &c. are produced by dissolving a degraded cellulose nitrate of low viscosity (obtained by boiling primary cellulose nitrate with water or dilute acids) in a solvent mixture containing carbon tetrachloride in amount at least twice that of the actual solvent present. Known solvents such as ethyl acetate, acetone, or amyl acetate may be employed with the carbon tetrachloride, together if desired, with the customary plasticizers. The Specification as open to inspection under Sect. 91 relates also to the use of carbon tetrachloride in admixture with other halogenated hydrocarbons, for example, methylene chloride or ethylene chloride.  This subject-matter does not appear in the Specification as accepted.