baber/WOPTO huggingface dataset:
Patent GB-1032410-A (GB)
Title: Improvements in or relating to shaft seals
Inventor: FRAKEL ADOLF
IPC: F16J15/34
Filed: 1961-04-24
Abstract: 1,032,410. Shaft seals. RICHARDSONS, WESTGARTH & CO. Ltd. July 24, 1962 [April 24, 1961], No. 14762/61. Heading F2B. Sealing means for the rotary shaft 1 where it extends through the casing wall 2 of a carbondioxide compressor comprises a wind-back screw seal 9 communicating at one end with a first chamber 7 which adjoins a shaft bearing 5 and houses an axially-displaceable non-rotatable ring 11 urged by springs 12 towards a shoulder 10 on the shaft and communicating at the other end with a second chamber 22 connected by a drainage duet 26 to a drain container 27 maintained at superatmospheric pressure, sealing oil, being supplied to the first chamber 7 at a selected pressure above the pressure of the carbondioxide gas in the space 4 within the casing and sealing oil leaking into the second chamber 22 being drained therefrom into the container 27. The sealing oil, some of which acts as a lubricant for the bearing 5, is supplied to the chamber 7 via a passage 6 and has its pressure controlled by a device 8. The ring 11 is sealed to the chamber 7 by a piston-ring 14. The seal 9 comprises multi-start helical grooves in the casing 2 opposing a cylindrical surface on the shoulder 10. The container 27 is vented via a throttling restriction 30 and the oil level in the container is controlled either by a discharge restriction 28 or by a valve 29. When the shaft is at rest or rotating at a low speed, the ring 11 is urged by the springs 12 into sealing contact with the shoulder 10. In operation under normal running conditions, a gap 15 is formed between the faces 13 and 16 by the oil pressure and an oil/gas interface occurs at an axial position along the seal 9. Any oil leaking past the seal 9 is thrown outwardly by a baffle 24 into the chamber 22 and drained into the container 27. A labyrinth seal 25 is provided between the space 4 and the chamber 22. In a modification, Fig. 2 (not shown), the sealing oil is supplied to the chamber 7 through passages in the ring 11.
Patent GB-1181947-A (GB)
Title: Method and Apparatus for Tempering a Tubular Shaped Structure
IPC: C21D9/08
Filed: 1968-03-27
Abstract: 1,181,947. Quenching and tempering tubular structures. MITSUBISHI JUKOGYO K. K. March 27, 1968 [April 3, 1967], No. 14815/68. Heading C7N. A large thick-walled tubular structure 9, e. g. a steel pressure vessel, is tempered by rotating the structure, e.g. on rotary supporting members 6, so that its upper portion is heated as it passes through electromagnetic induction heating means, e. g. to 700‹ C. by L. F. coil 7 then to 900‹ C. by H. F, coil 8, whilst its lower portion is cooled as it passes through a cooling medium tank 1, the heating and cooling being continuously and repeatedly performed. Cooling may be facilitated by cooling medium injecting pipes 5.
Patent GB-692435-A (GB)
Title: Tire tread removing device
IPC: B29B17/02
Filed: 1950-06-16
Abstract: 692,435. Buffing tyres. HAWKINSON CO., P. E. 'June 16, 1950 [Nov. 4, 1949], No. 15148/50. Drawings to Specification. Class 60. [Also in Group VIII] In a machine for buffing tyres which is generally similar to that described in Specification 692,434, a knife (see Group VIII) is provided for removing the tread of the tyre prior to the buffing operation.
Patent GB-1220580-A (GB)
Title: Improvements in or relating to faced hardboard
Inventor: WHITWELL GODFREY FRANCIS
IPC: B29C63/48
Filed: 1967-04-03
Abstract: 1,220,580. Shaping hardboard laminates. BAKELITE XYLONITE Ltd. 14 May, 1968 [3 April, 1967], No. 15210/67. Addition to 1,127,321. Heading B5N. The invention of Specification 1,127,321 is improved by using as the synthetic resinous sheet, for facing a hardboard sheet, a vinyl or vinylidene polymer sheet, e.g. polyvinyl chloride, polyvinyl fluoride, vinyl chloride-vinyl acetate copolymers, polyvinylidene chloride, vinylidene chloride-vinyl chloride copolymers. The sheet may comprise a sheet of polyvinyl chloride laminated to a thicker sheet of polyvinyl fluoride. Plasticizers, pigments and stabilizers may be present. The general process conditions are as described in Specification 1,127,321. Specification 996,025 is referred to.
Patent GB-1461753-A (GB)
Title: Cutting devices
IPC: B26D1/22
Filed: 1975-04-14
Abstract: 1461753 Cutting apparatus MARTIN SA 14 April 1975 [12 June 1974] 15255/75 Heading B4B A rotary hinge 14 for cutting sheet material e.g. cardboard, as it is moved psst the knife and while it is supported by a roller 15, comprises two identical half-knives 35, Fig. 2, maintained in contact under pressure, the two half knives being independently rotatable and each connected to an independent driving member 36 wherein the respective driving members are adapted to provide the half-knives with speeds of rotation which are different. The half-knives are each secured to respective gears 36 which are rotatable independently on bearing surfaces on a shaft 38, the axes of the bearing surfaces being slightly off-set; cutting edge of the half-knives may be provided with teeth. The gears 36 have a different number of teeth such that they rotate relatively to each other to provide a self-sharpening effect. Due to the off-set of the bearing surfaces the rubbing contact of the half-knives is limited to a small peripheral area only, Fig. 4 (not shown). The gears 35 mesh with a pinion 25 rotated by a toothed shaft 24; alternatively, the or each pair of half-knives may be driven by an independent motor. The description relating the apparatus shown in Figs 1 and 3 is substantially the same as that in the Specification 1462025.
Patent GB-950443-A (GB)
Title: Improvements in or relating to methods of micro-encapsulation and the microcapsules thus produced
IPC: H01F41/16
Filed: 1960-05-02
Abstract: Microcapsules composed of liquid droplets containing suspended solid or dissolved liquid surrounded by a condensation polymer skin are produced by forming the polymer in situ by dispersing one of the reactive monomers thereof in the droplets to be encapsulated and dispersing these droplets in a liquid immiscible therewith and which contains, in solution, a second reactive monomer which reacts with the first on the droplet surfaces to form the polymer skin. Specified condensation polymers which may be employed are polyamides formed from a diamine and a divalent acid chloride e.g. piperazine or ethylene diamine and adipoyl or terephthaloyl chloride, polyesters formed from a glycol and an acid chloride e.g. ethylene glycol and terephthaloyl chloride, the corresponding alkyd and epoxy resins formed when the acid chlorides are replaced by carboxylic acids or epoxides and polyurethanes formed from a glycol and a diisocyanate e.g. ethylene glycol and toluene-2,6-diisocyanate.ALSO:Record members are produced by coating a base, e.g. paper, with microcapsules composed of a condensation polymer skin enclosing a dye or light-sensitive material and a carrier liquid which are formed by the formation of the polymers in situ (see Division B8). Specified polymers are polyamides formed from a diamine and a divalent acid chloride, e.g. piperazine or ethylene diamine and adipoyl or terephthaloyl chloride, polyesters formed from a glycol and an acid chloride, e.g. ethylene glycol and terephthaloyl chloride, the corresponding alkyd and epoxide polymers formed when the acid chlorides are replaced by carboxylic acids or epoxides and polyurethanes formed from a glycol and a diisocyanate, e.g. ethylene glycol and toluene-2,4-diisocyanate. A specific example relates to paper coated with a starch solution containing sodium perborate and microcapsules composed of a polyester (from ethylene glycol and terephthaloyl chloride) skin enclosing methylene blue in the leuco form and chlorinated biphenyl.  Rupture of the capsules, e.g. by pressure, releases the leuco compound which reacts with the perborate to give a blue colour.ALSO:A so-called "carbonless carbon paper" is produced by coating paper with a starch solution containing sodium perborate and microcapsules composed of a polyester (formed from ethylene glycol and terephthaloyl chloride) skin enclosing leucomethylene blue and chlorinated biphenyl, the microcapsules being formed by a condensation polymerization reaction to form the polymer in situ (see Division B8).
Patent GB-1016573-A (GB)
Title: Improvements in or relating to heat exchanger tubes
Inventor: PERRY EDWARD JAMES
IPC: F28F13/00
Filed: 1963-04-18
Abstract: 1,016,573. Heat exchanger tubes; defrosting. UNDEC. Ltd. April 20, 1964 [April 18, 1963], No. 15286/63. Headings F4H and F4S. A heat exchanger tube 10 is filled with a permeable filling comprising a strip, sheet or tubular element of a reticular or cellular character which extends in a continuous manner along the tube and is in contact with the inner surface of the tube. The filler material may comprise expanded metal or a woven or knitted wire cloth with the wire strands soldered to one another and the outer strands of the filling bonded to the tube. In Fig. 1 the filling 11 comprises a tube of woven or knitted wire. The filling in Fig. 3 consists of a strip of the woven or knitted wire wound helically around a mandrel 12. Fig. 4 shows a filling 14 comprising a sheet of the woven or knitted wire wound spirally about the mandrel 12. The mandrel may remain after insertion of the filling or be removed. When the assembly is used for refrigerating purposes the mandrel remains in the tube and may comprise a defrosting element.
Patent GB-1175543-A (GB)
Title: Multipurpose Artists Easel
Inventor: MORTON GAVIN DOUGLAS
IPC: A47B97/08
Filed: 1966-04-06
Abstract: 1,175,543. Artists easels. D. G. MORTON. 6 April, 1967 [6 April, 1966], No. 15345/66. Heading A4H. An artists' easel comprises an extension column 3 telescopically mounted with respect to a rectangular support frame 2 pivotally mounted on a base frame 1. The extension column 3 is clamped in adjusted position by a device 36 and the support frame 2 is secured in angularly adjusted position by pivoted slotted struts 11 clamped by bolts. A table 5 is pivoted at its rear edge to a U-shaped guide frame (17) slidable in the support frame 2 and clamped in adjusted position by bolts 31. The table is also supported in adjusted inclined position by two struts 29 through slots 32 in which pass the clamping bolts 31. The rear edge of the table and a lip 15 on the front edge of the table serve as canvas holders when the table is folded. An upper canvas holder 40 is adjustable. A folding seat 4 is pivotally secured to the base frame 1.
Patent GB-312494-A (GB)
Title: Improvements connected with the joints of electric cables
IPC: H02G15/10
Filed: 1928-05-25
Abstract: 312,494. Henley's Telegraph Works Co., Ltd., W. T., and Dunsheath, P. May 25, 1928. Cable joints.-Relates to the insulation of electric cable joints in which a paper or like wrapping is applied in the form of a roll or tube 7, Fig. 1, loosely surrounding the joint and then tightened by a rotary wrapping or stroking action. The roll is made from a strip having parallel sides and therefore of constant width at least for the inner turns of the tube. To obtain the initial grip of the innermost turns of the tube the end of a tool 9 e.g. a knife is inserted within the tube after it has been placed in position. Instead of or in addition to the tool the necessary adhesion can be obtained by sprinkling rosin upon the surface to be covered or by impregnating the insulation with oil. Fig. 2 shows a joint provided with five such tubes 7. The insulation is cut back and the conductors 4 united by a ferrule 5 covered by a paper insulation 6 and tape 10 so that the insulations 2<a>, 6, 3a form a continuous surface. Over these are two more tubes 7 arranged to break joint, and tapered layers of cotton tape 12 are applied at the ends of these tubes. The cable joint is enclosed on a lead casing 13 with a filling aperture 14. Lead foil is wrapped over the ends 2, 3 and tape fillings 15, a layer of tape is then applied and the whole secured by copper wire 16. Modifications are described in which one or three paper tubes are used.
Patent GB-1344335-A (GB)
Title: Edible fat composition and food products containing same
IPC: A23D9/00
Filed: 1971-05-18
Abstract: 1344335 Fatty compositions AMERICAN HOME PRODUCTS CORP 18 May 1971 [1 June 1970] 15431/71 Heading C5C [Also in Division A2] An edible fat composition comprises, by weight, 15 to 45% of oleic oil (that is oil containing about 80% of oleic acid and about 15% of linoleic acid derived from a genetic mutant of safflower), 10 to 45% of oleo oil (that is a yellow oil of olein expressed from tallow) and 10 to 35% of a lauric acid oil (coconut or babassu). It may also contain up to 25% of one or more of the seed oils: soyabean, corn, peanut, sunflower and cottonseed; and up to 2% of soya lecithin. These compositions are used to prepare baby foods (see Division A2).
Patent GB-749073-A (GB)
Title: Convection air heaters for use in domestic open fire places
IPC: F24B1/188
Filed: 1953-06-04
Abstract: 749,073. Heating air. UWINS, C. C. G. June 4, 1954 [June 4, 1953], No. 15451/53. Class 64(3). An open fireplace is provided with airheating chambers 10, 21, 22 and 25 under and at the sides and back of the fire ; air enters the chamber 10 under the fire, divides and flows into and up and down the side chambers 21, 22  past baffles 24, into the bottom of the back chamber and then up and out at the top. Baffles are also provided in the bottom and back chambers. The bottom chamber contains corrugated fins 14, 18.
Patent GB-496927-A (GB)
Title: Improvements in character-bearing elements for use in photographic type-composing processes
IPC: B41B15/12
Filed: 1937-06-07
Abstract: 496,927. Type bar - making machines. INTERTYPE, Ltd. (Scheffer, C. E.) June 7, 1937, Nos. 15494 /38 (divided out of 496,886, [Group XX], under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 13, 1937), and 15603/38. [Class 100 (iii)] [Also in Group XX] Matrices.-Type bodies for photographic typecomposing consist of a plate or body similar to the matrix bodies used in type line casting and having at least one character on the broad side of the body or on a surface within the body parallel to the broad side. A character for lead casting may be provided on one edge of the body. In the form shown in Fig. 2, the body a is provided with teeth d and has an aperture g in which is mounted a film e bearing one or more characters for reproduction by reflected or transmitted light and held in place by a washer f. Fig. 3 shows a similar body in front elevation, a female character h for lead casting being provided on one edge. In a modification, Fig. 5, the character bearing film e is circular and has ears k which engage in corresponding recesses in the edges of the aperture g. The bottom of the aperture may be at a fixed distance from the front surface of the body, the thickness of which is varied according to the width of the character to permit of justification. The film e may be held in place by a removable washer retained in position by a bent-in rib at the edge of the aperture or by a split washer sprung into the aperture. Specification 496,886 is referred to.
Patent GB-804626-A (GB)
Title: Engine-starting mechanism
Inventor: SEILLY ALEC HARRY
IPC: F02N15/06
Filed: 1956-05-18
Abstract: 804,626. Engine starter devices. C.A.V., Ltd. May 1, 1957 [May 18, 1956], No. 15522/56. Class 7(5) A protective spring sleeve b made from a metal strip coiled to a helico-volute form surrounds the portion of the screw thread which would otherwise be exposed when the pinion is in its inoperative position. The spring sleeve may be of steel. The end of the strip is preferably spot welded g to a contiguous part of the strip.
Patent GB-999107-A (GB)
Title: Improvements in or relating to catalysts and catalytic processes for hydrogen conversion
IPC: B01J23/745
Filed: 1962-04-24
Abstract: Hydrogen in equilibrium energy state in the range 20 DEG  K to 200 DEG  K. is produced by passage through a porous bed of ferric oxide gel particles as catalyst, which have been heated to not greater than 200 DEG  C. and then between 140 DEG  and 280 DEG  C.  The temperature of the mixture of ortho and para hydrogen may be lowered or raised before passage through ferric oxide according to whether the concentration of para hydrogen is being increased or decreased respectively, in the latter case the mixture is heated to replace heat removed by the endothermic reaction.  The oxide catalyst is prepared by precipitation as a gel from aqueous ferric salt solution by a base, washing the precipitate with water to remove anions, drying e.g. at not greater than 200 DEG  C., grinding e.g. to 20 mesh, and heating to activate e.g. at 140-280 DEG  C. The gel may be used whilst still hot but may be heated to activate, in dry nitrogen, hydrogen or helium.  Specification 894,819 is referred to.
Patent GB-754026-A (GB)
Title: Means for observing superposed impressions on a moving web
Inventor: BOGERT JOHN JACOB
IPC: B41F33/02
Filed: 1954-05-26
Abstract: 754,026. Control of several motors. NATIONAL LABORATORIES & MANUFACTURING CORPORATION. May 26, 1954 No. 15560/54. Class 38(3) [Also in Group XX] Successive designs printed equidistantly on a continuously moving web are observed by means of a mirror drum continuously rotated by a Selsyn motor controlled by a second Selsyn driven from the web so that the designs appear stationary, the Selsyns being connected together through a differential Selsyn adjustment of which allows different longitudinal portions of the design to be observed. As shown in Figs. 1 and 6 the drum 38 extends across the width of the web 24 and carries a plurality of plane front-surface mirrors arranged around its periphery. The web 24 passes continuously from a roll 19 to a roll 18 by a plurality of pairs of printing rollers only one of which, 21, 22, is shown. A gear 57 on the roller 22 drives a Selsyn 56 connected by way of a differential Selsyn 121, Figs. 3 and 10, to a Selsyn 53 which synchronously drives the drum 32 by a worm drive so that the web appears stationary when viewed in a binocular system 77, Fig. 1, by light reflected by the mirror drum 32 and by a plane reflector 59, Figs. 1 and 6, oscillated about an axis 66 by means of an arm 69 having a roller 71 engaging a cam fixed to the drum 38. The system 77 may slide laterally across the web to permit inspection of different lateral portions thereof. To allow different longitudinal portions of the web to be examined the differential Selsyn 121 may be rotated by a hand wheel 129 and shaft 126,' Fig. 3, to vary the relative phases of the Selsyn 53 and 56. Alternatively a continuous scan of each pattern may be effected by an electric motor 135 driving the shaft 126 continuously through a suitable clutch 139. To allow of inspection of designs of different sizes the casing 31 containing the mirror drum mechanism, may be moved towards or away from the web on rails 26, Fig. 1, by means of a rack 104, Fig. 3, operated by a pinion 106 driven by a hand wheel through suitable gearing. Fixed reflectors 157, Fig. 6, may be provided to reflect light from a comparison object adjacent the web 24 into the observation position.
Patent GB-476231-A (GB)
Title: Improvements in transportation vehicles
IPC: B61D45/00
Filed: 1936-06-03
Abstract: 476,231. Railway-vehicle undercarriages. TENNANT, W. J. (Motor Terminals Co.) June 3, 1936, No. 15574. [Classes 103 (iv) and 103 (vi)] In a railway vehicle for demountable bodies and having a floor frame and an underframe, one frame has longitudinal members with means engaging upward flanges on longitudinal members on the other frame, the members having horizontal webs for rollers between the frames, while means are provided for yieldingly limiting the movement between the two frames. The floor frame 30, Fig. 3, has channels 35, 36 embraced by channels 20, 21 on the underframe and housing rollers 40. The floor frame has a series of projections 130 engaging sockets in the comers of the demountable bodies B. The rollers 40 are spaced by wooden blocks 41, Fig. 10, secured in the channels 35, 36. The inner flanges of the channels 20, 21 may be replaced by guide rollers 110 mounted in brackets on the underframe. The rollers may be loose or may be journalled in either of the coacting channels. Hooks 80 hold the two frames together. The floor frame has abutments coacting with helical springs carried by the underframe, or the abutments 93, Fig. 7, may be connected to piston-rods 92 of cylinders 90 containing glycerine or oil and carried by the underframe. The fluid communicates through check valves 104 with a compressed air system coupled to the air-brake system.
Patent GB-863279-A (GB)
Title: Transparent thermoplastic composition
Inventor: DAVIES THOMAS ELLIS
IPC: C08L21/00
Filed: 1958-05-15
Abstract: 863,279. Transparent thermoplastic compositions. DISTILLERS CO. Ltd. May 1, 1959 [May 15, 1958], No. 15589/58. Class 2(6). Transparent thermoplastic compositions comprise 1-15% of a synthetic rubber which is of refractive index 1À533-1À563 and is a polymer or copolymer of a conjugated diene in a copolymer of 30-75% of styrene with methyl methacrylate. The conjugated diene from which the synthetic rubber is prepared may be butadiene, isoprene, chloroprene or dimethylbutadiene. The synthetic rubber is exemplified by copolymers of butadiene and styrene. The synthetic rubber may be mixed with the styrene-methyl methacrylate copolymer on a calender or in a rotary mill or the synthetic rubber may be dissolved and the solution mixed with the styrene-methyl methacrylate copolymer or a solution thereof; alternatively, the synthetic rubber may be present in the monomer mixture from which the styrenemethyl methacrylate copolymer is made. The styrene-methyl methacrylate copolymer may be made by copolymerizing a mixture of the monomers in the absence of a polymerization initiator, the polymerization being initiated at above 100‹C. Light and heat stabilizers and plasticizers and lubricants such as paraffin hydrocarbons and butyl stearate may be incorporated.
Patent GB-1521616-A (GB)
Title: Board games
IPC: A63F3/02
Filed: 1976-04-15
Abstract: 1521616 Board game FRATERNITY OF FRIENDS OF ST ALBANS ABBEY 11 Feb 1977 [15 April 1976] 15601/76 Heading A6H A board as shown is used with three sets of draughtmen or chessmen.
Patent GB-355790-A (GB)
Title: Process for making tough styrol polymers
IPC: C08F12/08
Filed: 1930-05-21
Abstract: Tough styrol polymers are obtained by polymerizing a styrol prepared from a halogen alkyl benzene, e.g. chlorethylbenzene. The styrol is heated in solution under reflux in the presence of a small amount of a basic material, or water, or both.  In an example styrol, obtained by heating chlorethylbenzene at atmospheric pressure in the presence of pyridine, is dissolved in any suitable solvent such as ethylbenzene and polymerized by heating under reflux for 72 hours at 115-120 DEG  C. in the presence of aqueous caustic soda.  Other examples are given using aqueous ammonia, pyridine or water instead of caustic soda.  In each case a non-brittle polymerized styrol is obtained.  Instead of chlorethylbenzene other halogen alkyl benzenes containing a plurality of alkyl groups or higher alkyl groups may be heated with a base to produce homologous alkyl styrols and these latter may then be polymerized to tough polymers by heating with a basic material or water or both in a similar manner to that described above.  As basic material potassium hydroxide tripotassium phosphate, aniline or diethylaniline may also be used. Specification 356,107 is referred to.