baber/WOPTO huggingface dataset:
Patent GB-740443-A (GB)
Title: Improvements in and relating to the photomechanical correction of photographic images
Inventor: CONRAD RUDOLF MICHAEL PETER
IPC: G03F3/06
Filed: 1951-03-08
Abstract: 740,443. Producing corrected photographic records from a transparency or opaque print. LEATHLEY PUBLICATIONS, Ltd. Feb. 27, 1952 [March 8,1951], No. 5657/51. Class 98 (2). Black and white procedure particularly involving soft masking to bring out detail in the highlights and shadows, including production of masked screen records, and colour procedure, particularly for separation records, uses the principle of reversibility of light and involves', as shown. in Fig. 1 of the Provisional Specification, the focusing-of a film at point A by light L<SP>2</SP> and lens O to produce an image of the finally desired size at point B, then illuminating the properly sized negative area at point B by light Ll and printing a mask on a photo-sensitive surface placed at C beyond the film which is still at point A; a desired reduction of sharpness being attained by adjustment of the distance AC or by varying a diaphragm used at O ; removing and processing the mask and returning it to its former position at C, and, finally, exposing a photo-sensitive surface placed at B by light L<SP>2</SP> through the mask, the film, and the lens, and processing this to produce the corrected record. A screen may be placed as at S in the final exposure to result in a corrected screen record. When using a colour film at A appropriate filters are introduced to produce corrected separation records which may be screened. In the case of opaque originals colour separations may be made at point B in the normal way with reflected light and the uncorrected records placed at A and treated as above. Instead of the single mask at A two masks may be made separately at the same place, as for correction of the contrast of the whole image and to subdue a high-light in only part of the image respectively, a clear spacing layer of the thickness of the first mask being introduced during printing of the second, the masks being assembled together for printing of the corrected record. Manipulation of the various materials used in the methods and particularly that involving the replacement of a processed mask in exactly the position occupied thereby before removal for processing is described in the Complete Specification with reference to apparatus which uses the essential features of apparatus described in Specification 693,703.
Patent GB-572331-A (GB)
Title: An improved polymeric silicone and methods of making it
IPC: C08G77/00
Filed: 1943-04-09
Abstract: A liquid having a low pour point and a low temperature-coefficient of viscosity is prepared by refluxing dimethyl diethoxy silicon in the presence of water and an easily removable acid catalyst and recovering the polymeric dimethyl silicone product.  It is preferred that a solvent such as ethyl alcohol should be present during the refluxing, and that the acid used should be hydrochloric acid.  The product prepared as above is for most purposes subjected to a dehydration process to further polymerize it and to raise its boiling point and viscosity.  The final pour point and viscosity are determined by the dehydration conditions, as well as by the time of refluxing.  It is preferred that the above treatments be carried out in the presence of an inert gas.  The oily layer which is thus produced is dried without the use of heat by means of a drying agent such as sodium sulphate.  If desired, the product may be dried and partly dehydrated by heating at about 120 DEG  C. preferably under reduced pressure.  The dried liquid is distilled to remove the volatile polymers which are mostly cyclic polymers.  The non-cyclic polymers have boiling points above their decomposition temperature. The flash point is raised without undue increase of viscosity by passing the liquid down the interior of an electrically heated column packed with glass helices against a countercurrent of nitrogen. Alternatively, the nitrogen may be bubbled through the liquid.  If continued, this causes an increase in both flash point and viscosity. The products of the invention are useful as hydraulic fluids, for recoil mechanisms, and for the lubrication of rubber bearings.  They are also useful as the fluidfilling medium for electrical power transformers. Specifications 561,136 and 571,725 are referred to.
Patent GB-307615-A (GB)
Title: Improvements in or relating to heels for boots and shoes
IPC: A43B21/22
Filed: 1928-02-25
Abstract: 307,615. Pycroft, S., and Simpson, J. Feb. 25, 1928. Heels for boots and shoes, whether hollow, solid, or built up from lifts, are provided with a recess extending upwards from the tread face and inwards from the breast face, to prevent splashing of mud &c. in wet weather. The recess, more especially in the case where the heel is built up from lifts or is solid, may have a protective lining of metal, celluloid, rubber, or other material, and a wearing tip may be secured to the tread face. In one construction, Fig. 2, the recess 2 is formed in a lower section 6 of the heel which is attached by screws or otherwise to an upper section 7. A metal plate 11, Fig. 5, may be secured at the lower portion of the heel 1 to receive a wearing-piece 10, which is retained by a flange 13 on the plate 11. Fig. 8 shows a construction wherein the recess 2 is provided with a detachable lining 15 secured by screws at its upper end and having a horse-shoe shaped trough at its lower edge to receive and retain a wearing-piece 10. The outer surface of the heel may be covered or enamelled.
Patent GB-724998-A (GB)
Title: Devices for the conveyance of fine-grained loose material (e.g. coal, gravel, etc.) from a high pressure chamber to a chamber of lesser pressure
IPC: B65G53/46
Filed: 1953-03-03
Abstract: 724,998. Step-by-step conveyers. KOPPERS GES., H. March 3, 1953 [March 19, 1952; May 23, 1952; Oct. 6, 1952], No. 5934/53. Class 78 (1). In apparatus for transferring finegrained granular material through a channel 8, Fig. 1, having a weightloaded valve 10 at its exit from a space at high pressure to a space at low pressure without any substantial flow of gas between the two spaces, the material is fed through the channel by a piston 7 mounted on a swinging arm 6. The apparatus may be surrounded by a cooling jacket 15. In a modification, Fig. 5, the arm 6 is connected by a forked link 28 to the piston which is a gas-tight fit in the channel. The link 28 may be pressed against a guide 42 by a spring 39 attached to it and to the arm. In another modification, Fig. 6, the channel 8 increases in diameter away from the piston and opens into a casing 54 which houses a friction body 55 mounted on a continuously rotating shaft 56. The material passes between the body 55 and the housing into a ring channel 58 into which project jets 59. A gas, e.g. oxygen, supplied to the jets blows the material into a duct 60. The cylindrical part 61 of the body 55 is provided with labyrinth channels 62 into which gas is passed from one or more jets 64 to prevent the passage of material to the stuffing box 65. A branch 69 of the channel 8 contains a cylindrical bush 70 in which is mounted one end of a piston 73. The other end of the piston is within a housing 75 and is exposed continuously to fluid pressure.
Patent GB-1149333-A (GB)
Title: Improvements in electric toasters
IPC: A47J37/08
Filed: 1968-02-06
Abstract: 1,149,333. Electric toaster. HUSQVARNA VAPENFABRIKS A.B. 6 Feb., 1968 [8 Feb., 1967], No. 5940/68. Heading A4D. An electric toaster is provided with heating elements such that the expansion and contraction movements of the elements are transmitted through a lever system to the food stuff-support, with the effect that the food stuff is moved into and out of the toaster as the elements heat up or cool off. Two sets of heating elements 14 are fixed to two supports 6, 13, and the toast is lowered between them on support 25. The support 6 is attached with adjustable screws to the frame 4, whilst the support 13 is secured to a movable member 12 kept under tension by the spring 21 acting through the lever 10. The lever also transmits movements of the member to the pantograph system 18, 25, so that the support 25 is moved vertically. The supply of current to the heating elements is controlled by a time switch.
Patent GB-476422-A (GB)
Title: Improvements in or relating to liquid refiners and method for refining liquids
IPC: C10M175/00
Filed: 1936-03-04
Abstract: The refining element of apparatus for purifying liquids, particularly fuel and lubricating oils, benzine and other light hydrocarbons, and raw sugar juice, comprises a finely-divided adsorbent material so interspersed with lumps or wads of fibrous filtering material that packing is prevented.  The adsorbent material may be activated, e.g. chemically activated clay which may be a mixture of coarse and fine particles.  The fibrous material may be mineral wool, rock wool, cotton waste, asbestos, curled hair, or steel wool.  The apparatus may be fitted in the lubrication circuit of an internal-combustion engine or other power plant.  As shown in Fig. 1, the apparatus consists of an outer casing containing a shell 4<1> built up of inner and outer shells 98, 99, foraminous except near their ends, enclosing a felt pack 97, the shell 4<1> being reinforced by hollow foraminous ribs 16<1>.  At each end of the shell 4<1> a chamber 96 is formed by a foraminous cup-shaped member 95 and an imperforate cover 93.  An inner foraminous shell 8<1> is closed at both ends by a cup-shaped member 88 on which rest baffle-plates C<1>.  A central hollow stem 91 is provided with slots 90 and surrounded by a diffusion member 85, e.g. a close-coiled spring outside which is a layer of felt 9<1>. The compartment between the shells 4<1> and 8<1> is filled with material 10<1> consisting of activated clay interspersed with lumps 71 of fibrous material.  The compartment between the felt 9<1> and the shell 8<1> is filled with refining material 10<11> preferably granular magnesium oxide with or without magnesium carbonate.  In modifications, Figs. 3 and 4 (not shown), the shells 98, 99 are foraminous right to the ends and the ribs 16<1> are omitted.  In operation, oil enters the refiner at 79 or 74 and leaves at 76 or 73, or vice versa, the whole passing through the materials 10<1> and 10<11>; channelling is prevented by the baffles C<1>, and some oil seeps into and out of the chambers 96.  The Specification as open to inspection under <PICT:0476422/III/1> Sect. 91 comprises also the use of finely-divided activated synthetic or other clay, e.g. chemically activated fuller's earth, with or without coarse particles of the same or of pumice, infusorial earth, diatomaceous earth, kieselguhr, or Bentonite, thoroughly mixed with a suspensory mass of mineral wool, rock wool, asbestos, cotton waste, curled hair, steel wool, sawdust, or sand.  As shown in Fig. 1 (Cancelled), an outer casing contains an outer corrugated shell 4 reinforced by hollow foraminous ribs 16. The corrugations may be longitudinal.  Inner shells 7 and 8 retain a filter 9 of felt, asbestos, cloth, mineral wool, curled hair, or sawdust.  The shells 4, 7 and 8 are foraminous except near their ends, and are closed at each end by bevelled discs 5, the bevels of which are covered with felt, provided with foraminous baffles C, e.g. of wire cloth.  This subject-matter does not appear in the Specification as accepted.
Patent GB-912561-A (GB)
Title: Process of preparing dispersions of alkaline earth metal compounds
IPC: C10M159/20
Filed: 1960-02-22
Abstract: Dispersions of calcium or barium compounds containing oxygen are prepared by reacting an oxide of the metal with methanol in the presence of a lubricating oil, an emulsifying agent and an acid or acid anhydride, e.g. carbon dioxide, sulphur dioxide or oxalic acid, the dispersed metal compounds being recovered in the oil.  A hydrocarbon diluent aids recovery of the methanol. Emulsifying agents include oil-soluble phosphorus compounds derived from olefines and phosphorus sulphide, oil-soluble sulphonates and aromatic sulphonic acids, and oleic and linoleic acid salts or soaps.
Patent GB-1032274-A (GB)
Title: Mounting of ducted fan turbine engines in the tail of an aircraft
IPC: B64D27/10
Filed: 1963-02-15
Abstract: 1,032,274. Boundary layer control. MESSERSCHMITT A.G. Feb. 15, 1963 [March 3, 1962], No. 6136/63. Heading F2R. [Also in Division B7] An aircraft has two tail mounted ducted fan gas turbine engines arranged so that the fan draws air from the fuselage boundary layer and the compressor draws air from outside the boundary layer 3. The fan blades 6 are mounted on a ring surrounding the compressor blades and a wiring chamber 4 with guide vanes 5 is provided in the tail, connecting the two fan intakes, so that the boundary layer air is mixed with other air passing to the fan intake. Afterburners may be fitted in the fan exhaust, the turbine exhaust, or both.
Patent GB-677175-A (GB)
Title: Metal carboxylates suitable as driers and the like
Inventor: CHADWICK ERIC
IPC: C08K5/098
Filed: 1950-03-11
Abstract: Lead, cobalt, and manganese salts of 2,4,4-trimethyl valeric acid are used as stabilizers for synthetic resins.  The lead salt with polyvinyl chloride permits production of transparent sheets.ALSO:Lead, cobalt and manganese salts of 2,4,4-trimethyl valeric acid, which may be prepared by precipitation from an aqueous solution of the sodium salt with a solution of a salt of the desired metal or by treating the acid with lead or cobalt oxide, hydroxide, carbonate, acetate or salt of another volatile weak acid, are used as driers for paints and varnishes, stabilizers for synthetic resins, e.g. polyvinyl chloride, mould lubricants, and thickeners for lubricating oils and greases.  In examples: (1) lead acetate solution is added to a stirred solution of sodium 2,4,4-trimethyl valerate and the precipitate dried; (2), (3) cobalt acetate and manganese sulphate are used similarly; (4) lead monoxide is heated with the free acid to give, on cooling, a glassy solid yielding a crystalline lead salt on standing under white spirit; (5) coblat acetate gives the cobalt salt in similar manner; (6) to (9) a solution of the cobalt salt in white spirit is compared with a cobalt linoleate solution in the drying effect on linseed oil.ALSO:Lead, cobalt and manganese salts of 2, 4, 4-trimethyl valeric acid are used as driers for paints and varnishes, mould lubricants and thickeners for lubricating oils and greases. They are available as powders or tablets.  In an example, the lead salt is prepared as a white crystalline solid soluble in mineral lubricating oil to give a grease.  A solution of the cobalt salt in white spirit is compared with a cobalt linoleate solution in the drying effect on linseed oil.
Patent GB-329706-A (GB)
Title: Cartons
IPC: B65D5/10
Filed: 1929-02-26
Abstract: 329,706. Cahill Carton Corporation. Oct. 2, 1928, [Convention date]. Boxes made from special blanks.-In a box or carton comprising a collapsable tubular body A and an end closure formed of side flaps 20, 21 hinged to the side walls and top and bottom interlocking flaps 24, 25 hinged respectively to the top and bottom walls, the hinge lines 22, 23 of the side flaps are disposed in the same plane behind the plane of the hinge lines 26, 27 of the top and bottom interlocking flaps. The flaps 24, 25 are locked together by a tongue 41 on the flap 24 engaging a slit 50 in the flap 25 and the slit 50 has short right-angled slits 51 at its ends forming a resilient tongue with which an obstruction 60 formed by a creased line at the base of the tongue 41 engages in a frictional and resilient manner. The cuts separating the adjacent flaps extend past the hinge lines 26, 27. The other end of the carton is constructed as described in Specification 326,006.
Patent GB-274757-A (GB)
Title: Improvements in and relating to lasts
IPC: A43D3/06
Filed: 1927-03-07
Abstract: 274,757. Bauer, C., (May Universal Last Corporation). March 7, 1927. Lasts.-Relates to expansible lasts of the kind having a fore part 1, a heel part 2, a wedgeshaped intermediate part, such as 3, and a connecting member such as 6, between the fore and heel parts, which permits the last to be lengthened or shortened; and consists in means for positively forcing the intermediate part into wedging engagement with the other parts when the last is lengthened and locking this intermediate part to the connecting member. The connecting member 6 is fixed to the heel part and is slotted to engage a pin 16 in the fort part. This member is formed with a projection 17 screwthreaded to engage a nut 18 rotatably mounted in the wedge member 3. The inner end of the nut is bevelled, to facilitate engagement with the projection 17. A washer 20 anchors the nut in the member 3.
Patent GB-864868-A (GB)
Title: Apparatus for storing and transporting cement or like powdered material
Inventor: BUDDEN DUDLEY PERCIVAL
IPC: B65D88/30
Filed: 1958-02-27
Abstract: 864,868. Weighing apparatus. ROAD MACHINES (DRAYTON) Ltd. Feb. 26, 1959 [Feb. 27, 1958], No. 6377/58. Class 143 A silo b for cement provided with a delivery duct b<SP>4</SP> is mounted on the superstructure a<SP>1</SP>, a2 of a wheeled trailer chassis a and is pivoted to the superstructure at b<SP>1</SP>, which is below and horizontally offset relatively to its centre of gravity, so that an extension b<SP>2</SP> of the silo is urged against a load cell c interposed between it and a fixed part a<SP>3</SP> of the framework thereby giving an approximate indication of the load within the silo. Means for fluidizing the cement is incorporated in the floor b<SP>3</SP> of the silo and in the duct b4.
Patent GB-459260-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/44
Filed: 1936-03-03
Abstract: 459,260. Television ; wireless receiving-apparatus. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. March 3, 1936, No. 6417. Convention date, March 18, 1935. [Classes 40 (iii) and 40 (v)] In a supersonic heterodyne television receiver in which the intermediate frequency is rectified by the cathode ray tube radiation of the intermediate frequency, and distortion due to feed-back of intermediate frequency to the input are preventing by screening the cathode ray tube and its immediate connections, or by including a trap circuit tuned to the intermediate frequency in the input. The Figure shows a dipole antenna D with a trap circuit 9 in the connection to the frequency changer 1 and screening 10 for the cathode ray tube connected to the screening 8 of the receiver.
Patent GB-934515-A (GB)
Title: Container including a neck with a pouring opening and closing device for the same
IPC: B65D47/12
Filed: 1962-02-20
Abstract: 934,515. Stoppers. K. RUETZ. Feb. 20, 1962 [Feb. 27, 1961], No. 6448/62. Class 125(3). A bushing 3 of elastically extensible material, with inner and outer walls embracing a bead 2 of the neck of a container 1, has a pouring spout 15 and an annular groove 6; the latter receives an annular bead 8 of a closure cap 7 to detachably hold the cap in position. The inner and outer walls of the bushing are firmly held by the cap which is formed with diametrically opposed projections 11 which, when the cap is turned, ride over similar spaced projections 13 on the bushing so that the cap is moved axially to draw its bead 8 from the groove 6.
Patent GB-1063156-A (GB)
Title: Display box comprising hingedly connected sections
IPC: E05D5/04
Filed: 1966-02-15
Abstract: 1,063,156. Hinging lids. DE LUXE READING CORPORATION. Feb. 15, 1966 [May 24, 1965], No. 6473/66. Heading B8P. A hinge joining two box parts comprises a tongue (17), Fig. 4 (not shown), integral with one box part and joined to it along a flexible area (18) defining the hinge axis, outwardly extending wings (21) integral with the tongue, a pair of slots (23) in the second box part to receive said wings, each wing having a hooked end (22) that engages a slot margin to hold the tongue flat against the area (24) between the slots, said tongue and the area between the slots being resilient so that the tongue may be forced over a wedge-shaped boss (25) on the said area between the slots to lock the parts together. The box may comprise a polypropylene base portion on which the flexible hinge axis may be formed and a clear plastics cover portion.
Patent GB-1505531-A (GB)
Title: Cutting element
IPC: B26F3/12
Filed: 1975-02-14
Abstract: 1505531 Rope-like cutting elements P TREFFNER and C TREFFNER 14 Feb 1975 [27 Feb 1974] 6475/75 Heading DIT [Also in Division B5] A cutting element is constructed by twisting a strip of electrically-resistive alloy so that the handedness of the twist changes uniformly along the wire e.g. at a point 66. The element is used for cutting polyurethane-foam blocks. The surface of the ribbon may have been roughened, for example by a rolling or cutting action, or by means of grit or other particles along its length.
Patent GB-1381825-A (GB)
Title: Infaltable apparatus
IPC: B60R21/2346
Filed: 1973-02-09
Abstract: 1381825 Vehicle safety cushions ALLIED CHEMICAL CORP 9 Feb 1973 [29 Feb 1972] 6487/73 Heading B7B In a vehicular safety device including an inflatable bag 1, a gas inflation source 3 and a distributer manifold 5, one or more porous or apertured screens 8 enclose the manifold outlets 6, this arrangement serving to reduce the sound generated as the gas escapes from the manifold and to reduce the snapping sound as the bag is expanded. The screens which may be of a fabric material are preferably 50-100 times greater in area than the gas outlets 6. The screens introduce a more radial gas flow and also serve as heat shields and protective curtains against any solid particles carried in the gas stream.
Patent GB-291871-A (GB)
Title: Improvements in single core electric cables
IPC: H01B9/02
Filed: 1927-03-09
Abstract: 291,871. Standard Telephones & Cables, Ltd., Riley, T. N., and Scott, T. R. March 9, 1927. Cables, arrangement of parts of.-A single-core cable comprises a conducting core A surrounded by a layer B of impregnated fibrous dielectric, a second layer of porous or semi-porous material D, and a metal sheath E. A permeable intersheath C of metallized paper separates the dielectric from the porous material D, and the layer D is made of material which is preferably much less absorbent than the material B. When the cable is in use and the dielectric expands, some of the impregnating fluid may pass through the intersheath C and may be taken up by the material D. Should a contraction take place, the fluid will be drawn back by the more absorbent material B, so that the homogeneity of the dielectric is maintained. The intersheath C and the outer sheath E are connected together.
Patent GB-746239-A (GB)
Title: Method of production of lamp shades
IPC: F21V1/00
Filed: 1954-03-08
Abstract: 746,239. Lamp shades. CHRISTENSEN, A. M. BITSCHE-. March 8,1954, No. 6685/54. Class 75(2). A lamp shade cover is manufactured by cutting a sheet of material to a rectangular shape having a width greater than the longest side of the lamp shade frame and a length at least as great as the length of the largest periphery of the frame and providing gathering means along the lengthwise edges of the material pleating the fabric across the lengthwise direction of the material and sewing in the pleats. The sheet may be of fabric 4 provided with hems 5, 6 along its longer edges. Pleats 7 are formed in the fabric and sewn together by a seam 8 of a length slightly longer than the circumference of the smallest ring 3 of a frame comprising rings 1, 2 and 3 held together by cross wires (not shown). Laces 9 (not shown) are then inserted in the hems 5, 6 and the material placed on a frame so that the seam 8 is laid along the ring 3 and held thereto by a lace 10. The laces 9 are then tied tightly so as to hold the fabric around the rings 1, 2.