baber/WOPTO huggingface dataset:
Patent GB-403502-A (GB)
Title: Improvements in or relating to electric conductors, especially communication or high-frequency cables
IPC: H01B11/00
Filed: 1932-10-18
Abstract: An electric conductor, particularly a high frequency cable such as a marine cable, is insulated by a mixture of solid raw rubber, which may be deproteinized, and polyvinyl compounds such as polystyrol or polyvinyl acetate.  Vulcanization or further polymerization either at the time of mixing or subsequently, is avoided.  The polyvinyl compounds are mixed with the rubber either in the solid or molten condition or in solution.  Volatile or high boiling solvents may be present and, if desired, further softeners such as mineral waxes.  In an example, 100 parts by weight of polystyrol are kneaded under heat with 20 to 50 parts of benzene, 200 parts of masticated rubber are then added and the mixture kneaded.  The benzene is then evaporated. The compound may be applied to the conductor in the form of tapes or pressed or squirted thereon.  The composition is resistant to water and has low dielectric losses.  Reference has been directed by the Comptroller to Specification No. 357,624.
Patent GB-643367-A (GB)
Title: Improvements in or relating to the thermal treatment of steel and products thereof
IPC: C22C38/18
Filed: 1947-10-31
Abstract: 643,367. Annealing. MOLINDER, A. G., and UDDEHOLMS AKTIEBOLAG. Oct. 31. 1947, No. 29166. '[Classes 72 and 82(i)] In a thermal treatment of high carbon corrosion-resisting steels containing 0.8 to 1.4 per cent C, and 11-16 per cent Cr, with or without up to 5 per cent in all of S, P, Mn, Si, Mo, W, Sb, N, Co, Ni, Al, Ti, the steel is treated in three steps, viz.: (a) heating to a temperature in excess of its basic hardening temperature, (b) cooling to a temperature below minus 25‹C,(e) heating to between 30‹C. and 200‹C., the exact temperatures and durations of heating being such as to produce the required hardness and the temperature in the first step being below that which produces maximum hardness by the present process. As shown in the curve the steel is heated to a temperature between 1<SP>2</SP> and s above n the basic hardening temperature, i.e. that producing the maximum hardness by the normal hardening and limpering process, but below t the temperature producing maximum hardness by the present process. The temperature, depending on the composition of the steel, is in the range 1060‹C. to 1125‹C. Razor blade steel in strip form having an analysis 1.0 per cent C, 0.25 per cent Si, 1.0 per cent Mn, and 14 per cent Cr may be heated in a continuous furnace to 1100‹C. in a protective atmosphere, e.g., cracked ammonia, cooled to atmospheric temperature between water-cooled metal blocks and then, immediately or within two hours, passed through a bath of methylated spirits cooled to -65‹C to -75‹C by solid carbon dioxide. The strip is then tempered at 110‹C. for one hour to produce a hardness of 820 Vickers units and is stated to be free from brittleness.
Patent GB-1045700-A (GB)
Title: Fluidized bed method and apparatus
IPC: B01J8/44
Filed: 1964-07-15
Abstract: <PICT:1045700/C1/1> <PICT:1045700/C1/2> A constriction plate for admission of hot fluidizing gas to a bed of material, e.g. pyrites, comprises a plurality of apertures having ducts therein for the passage of streams of said gas together with a cooler gas, arrangement being such that each stream of said hot gas is surrounded by cooler gas.  Fig. 2 shows a portion of the constriction plate 26 adjacent to the chamber wall:  fluidizing gas is admitted to a windbox below plate 26 and passes into pipes 30 which support cup members 64 serving to restrict flow of gas to pipes 30 and to prevent solids falling into the windbox.  Each pipe 30 is surrounded at its upper end by a pipe member 54 to which a cooling gas can be supplied by means of manifold 72 via pipe 84 (see Fig. 6). Pipe 30 is supported on the plate by flange 60 and pipe member 54 supports a cup-shaped ceramic member 56.  Cooling gas is supplied to manifolds 72 by pipe 76 and the arrangement of the manifolds and pipes 84 is such as to effect cooling (by the cool gas) of the plate, the body of which may be in the form of brick or other refractory placed or cast around the gas supply manifold and pipes.  Fig. 3 (not shown) illustrates a spatial arrangement of these gas supply conduits.
Patent GB-731044-A (GB)
Title: Improvements in or relating to high frequency coil systems comprising a slidable electrically conductive core
IPC: H04B1/03
Filed: 1953-10-22
Abstract: 731,044. Inductors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 22, 1953 [Oct. 25, 1952], No. 29208/53. Class 38 (2). [Also in Group XL (c)] A high-frequency coil system comprises at least one coil the inductance of which is varied by a slidable electrically conductive non- magnetic core which comprises at least two telescoping parts which parts are most fully telescoped at least when the core is totally without the coil. A coil 3 wound from a tubular copper conductor is provided with a slidable copper core 23 which comprises two telescoping parts 37, 39. The part 37 is fixed to a bracket 35 which is caused to slide along guide rails such as 13 and the part 39 is spaced from the part 37 by a spring 47. A pin 49 secured to the part 39. has a control card 51 attached thereto which is led over pulleys 53, 55 and finally secured to a fixed member 57. Move. ment of a control knob causes the bracket 35 to move to the right, thus moving the core part 37 out of the coil 3. At the same time the core part 39 will also move to the right due to its attachment to the cord 51 but since the cord is led through an angular change of direction of 180 degrees the core part 39 will move at twice the rate of the core part 37. Thus when the part 37 is clear of the coil the part 39 will be fully telescoped therewith. In another embodiment both parts initially move at the same rate until one part is clear of the coil, which part then stops whilst the other part continues to move, telescoping the stopped part. In yet another embodiment initially only one part moves to telescope the other and when fully telescoped both parts move together to clear the coil.
Patent GB-171099-A (GB)
Title: Device and element for the production of registering strips for automatic type composing machines
IPC: B41B25/00
Filed: 1921-11-03
Abstract: 171,099. Wolters, O. Nov. 3, 1920, [Convention date]. Strip-perforating machines.-Machines for perforating record-strips for controlling automatic composing-machines are operated by separate elements which resemble the matrices of a type-bar making machine, and have projections arranged in varying combinations which operate the punches. In the form shown in Fig. 1, each element a has on one edge two projections b, which operate corresponding punches. The elements are provided with distributing-teeth c, so that they can be handled by a machine resembling a type-bar making machine. Each element representing a character may be composed of several parts n, o, Fig. 3, which are assembled side by side. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also :-(1) The direct punching of the, strip by the projections on the elements, and the provision of reading-marks on the elements. (2) The arrangement of the projections on two or three sides of the elements, as shown in Fig. 4 (Cancelled), and the use of other projections f, g, h, i, k to facilitate the guiding and releasing of the elements. (3) The replacement of the projections by indentations by holes m for pneumatic operation, or by electrical contacts formed in the insulated edges of the elements. This subject-matter does not appear in the Specification as accepted.
Patent GB-1191855-A (GB)
Title: Bags made of Thermoplastics Foil, a method of manufacturing such Bags and apparatus for use in the manufacture of such Bags
IPC: B29C48/10
Filed: 1967-06-26
Abstract: 1,191,855. Coated bag. WAVIN N.V. 26 June, 1967 [1 July, 1966], No. 29322/67. Heading B2K. [Also in Division B5] A bag made of thermoplastics foil has a roughened outer surface area having a higher coefficient of friction than the remainder of the surface of the bag provided by particles embedded in the foil under the action of heat. The particles can be applied to the entire surface or only to definite parts for example by spraying. Preferably polyethylene powder particles are used when polyethylene is employed as the plastics foil and polyvinyl chloride particles used when polyvinyl chloride is used. The polyethylene bag can be manufactured by extruding a tube 4 from an extruder 1 with extrusion head 2 having an annular outlet 3, the tube being cooled by means of air blown from ring 5, and a gas inlet tube 6 being provided for inflating the tube. Polyethylene particles finely distributed by the aid of air is applied to the outside of the plastics foil through a moving or stationary blast nozzle 9 utilizing a slit through which the pulverulent material is applied. The tube is thereafter made into a bag.
Patent GB-1002518-A (GB)
Title: Adjustable stay for tractor or the like
IPC: B60D1/155
Filed: 1962-07-31
Abstract: 1,002,518. Stays. J. SANDBAKKEN. July 31, 1962 [July 31, 1961], No. 29355/62. Heading E2F. [Also in Division F2] A telescopically-adjustable stay, particularly for the lifting device of a tractor, comprises a tube 1 and a rod 3 which are releasably locked together by a half nut 13 carried by a plate spring 12 on the tube 1, the half nut being forced against threads on the rod 3 by a wedge 10 on a rod 9 pivoted at 8 to an operating arm 6 pivoted to the tube 1. The wedge 10 reacts against a member 11 secured to the tube 1 and surrounding the half nut 13. In a modification the wedge 10 reacts against a leaf spring mounted within an enlarged member 11, the leaf spring being positioned by an adjusting screw.
Patent GB-541681-A (GB)
Title: Improvements in and connected with screw fans
IPC: F04D29/38
Filed: 1940-05-04
Abstract: 541,681. Screw fans. MILLAR, A. L. May 4, 1940, No. 29370/39. [Class 114] In a screw fan, the leading edge 2 of each blade is straight and lies substantially in a plane of rotation, the inner end of the trailing edge 4 forms an angle of about 30 degrees with the leading edge, both edges if projected would intersect the axis of rotation, and the outer end of the trailing edge is connected by a curve 5 to a straight portion 6 which meets the leading edge at an angle of about 60 degrees. With two or more blades, all the leading edges are in the same plane of rotation, and with a pair of blades the leading edges may lie along a common diameter of the boss 3 or be slightly offset relative to one another. The whole of the trailing edges of each blade lies in a plane which contains the leading edge and is at an angle to the plane of rotation. In radial and axial directions, the working face of each blade may be concave or partly concave and partly flat, whilst the following face may be convex or partly convex and partly flat, the concavities and convexities being most marked where the blade is widest. According to the Provisional Specification the working face may be flat.
Patent GB-781594-A (GB)
Title: A process for coating metals
Inventor: SAMUEL ROBERT LIONEL
IPC: C23C10/00
Filed: 1954-10-12
Abstract: A metal is provided with a chromium-containing coating by being first coated with a liquid or pasty composition containing chromium or chromium alloy in powder form, together with a carrier which is solid at room temperature but becomes liquid or begins to melt at the operating temperature, and which is a halide other than a chromium halide, and then heated by high frequency heating until diffusion of chromium takes place.  The metal to be coated may be aluminium, copper, cobalt, iron, steel, nickel, molybdenum, tungsten or titanium.  The coating may contain, besides chromium, aluminium, copper, cadmium, iron, manganese, molydbenum, titanium, vanadium, tungsten, zirconium, silicon, nickel or cobalt.  Carriers which may be used are cryolite and alkali metal or alkaline earth metal fluorides, chlorides, bromides and iodides, e.g. flourspar, potassium iodide and barium chrolide.  The composition may also contain a bonding agent such as an organic silicate, e.g. ethyl silicate, a complex silicate, e.g.  Portland cement, solutions of cryolite cellulose esters or ethers, e.g. cellulose acetate, or organic colloidal substances, e.g. glue or gelatine.  The heating is effected in an induction furnace or by means of a high-frequency inductor: atmosphere-controlled furnaces may be used as well as gas-tight retorts or boxes, or salt-bath furnaces.  Two examples described relate (a) to the coating of a sparking plug made of medium carbon steel, and (b) to the coating of a molybdenum rod.  Specification 718,095 is referred to.
Patent GB-503245-A (GB)
Title: Improvements in and relating to the condensation of magnesium vapours
IPC: C22B26/22
Filed: 1937-10-28
Abstract: 503,245. Condensing magnesium vapour. MAGNESIUM METAL CORPORATION, Ltd. (American Magnesium Metals Corporation) Oct. 28, 1937, No. 29459. [Class 82 (i)] In a process for condensing magnesium vapour from a mixture of the vapour and an inert gas, under conditions in which the partial pressure of magnesium vapour in equilibrium with magnesium at its solidification temperature is an appreciable fraction of the partial pressure of the magnesium vapour in the inert atmosphere of the condensing system, the vapour is passed successively through two condensation stages of different temperature ranges respectively above and below the solidification temperature, a substantial part of the condensate in the first stage being in the liquid form, and solid magnesium dust being deposited in the second stage, which dust is then continuously combined with the liquid condensate and thereby fused. In the apparatus shown, the mixture of vapour and inert gases is admitted by an inlet 2 to a cylindrical vessel 1, the residual gases passing out by an outlet 3. Jackets 12, 13 for air or other cooling medium, and jackets 14, 15 containing heating elements in their lower portions, enable two zones a, b of different temperature range to be maintained. The liquid condensate formed in the higher temperature zone a collects above an intermediate bottom 4 around which a heating jacket 16 is provided. The solid deposit is scraped from the walls by chains 10 suspended from a continuously or intermittently rotated member 11 and falls into the liquid condensate, where it fuses. A finely adjustable valve 6 allows the magnesium to fall in drops into hydrocarbon oil where it sets into the form of balls. The liquid metal may be agitated by chains 9 hanging from a cross 8 attached to the valve operating means, which is raised and lowered for this purpose. The cooling jackets 12, 13 may be replaced by one encircling the upper part of the vessel, a number of annular heating pockets being provided at intervals round this jacket.
Patent GB-980620-A (GB)
Title: Erection of tower cranes
Inventor: KERRIDGE NORMAN EDWARD
IPC: B66C23/34
Filed: 1962-07-31
Abstract: 980,620. Self erecting tower cranes. STOTHERT & PITT Ltd. July 30, 1963 [July 31, 1962], No. 29468/62. Heading B8B. To erect a sectional tower crane a superstructure S, Fig. 2, is first raised into a vertical position on the crane base by a winch M on a pintle section R. The pintle section is erected by placing rollers 15 on guides 14, running it into the superstructure S and raising it by means of the winch M, jacks 32 lowering it after the centre of gravity passes over the pivot point. A panel is attached to the superstructure to close the top of the open side and a counterjib is attached. Next, the pintle section is raised off the ground by a rope 26 and winch M in co-operation with a rope 42 and pulley 43, Fig. 4. Guides 34, 35 keep the pintle vertical and when it is high enough a further section 36, Fig. 5, is slid into place on rollers 15 and guides 14. Further tower sections are added and the superstructure open side is closed by adding a second panel. The jib is now bolted to the superstructure and the whole is raised up the tower by the winch M and a yoke 20 on the pintle is bolted to the top of the superstructure. Guides 65, Fig. 8, on the superstructure engage co-operating members on the yoke 20 when the guides 34, 35 move out of contact with the tower. The securing mechanism is described in Specification 980,619.
Patent GB-1490023-A (GB)
Title: Prostaglandin analogues
IPC: C07C67/00
Filed: 1975-07-15
Abstract: 1490023 Prostaglandins UPJOHN CO 15 July 1975 [26 July 1974] 29547/75 Heading C2C The invention comprises optically active prostaglandins of the formula or enantiomers or racemates thereof, wherein R 4  is H or C 1-8  alkyl; R 2  is methyl or ethyl; and either Y is -CH 2 CH 2 -, in which case X is -CH 2 CH 2 - or trans-CH=CH-, or Y is cis-CH = CH in which case X is trans CH = CH, and pharmaceutically acceptable salts thereof when R 4  is H and their preparation by reacting optically active compounds of the formulae or enantiomers or racemates thereof, wherein R 5  is H or C 1-8  alkyl, either with bases whose aqueous solutions has a pH greater than 10, when R 5  is H, or with alkoxides corresponding to R 5  in alkanol diluents corresponding to R 5  when R 5  is alkyl Pharmaceutical compositions, suitable for oral, parenteral, topical, rectal or vaginal administration contain the above prostaglandins or non-toxic salts thereof together with pharmaceutical acceptable carriers. The compound possesses pharmacological properties similar to the corresponding naturally occurring prostaglandins.
Patent GB-1033558-A (GB)
Title: Distributed-constant delay line
IPC: H01P9/00
Filed: 1963-07-26
Abstract: 1,033,558. Delay lines. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. July 26, 1963 [Aug. 17, 1962], No. 29799/63. Heading H1W. A delay line for providing constant time delay over a broad band of frequencies comprises two identical, interlaced, coaxial windings of opposite winding sense. Windings 13, 14 may consist of insulated copper wire and are close - wound upon a core 12 of highdensity polyethylene or upon a ferromagnetic core. The windings are interlaced with two cross-overs per turn spaced by e.g. 60 degrees or 180 degrees. They are connected to the terminals of a balanced imput 10 and a balanced output 15. The windings have a mean diameter not greater than #/40 and a length of less than #/2 where X is the wavelength at cut-off. In a modification, the windings are spaced by two further windings each consisting of a strand of dielectric material. The strands and the wires are wound in two bi-filar pairs. The line may be surrounded by a shield of copper braiding laid upon an insulating winding consisting of P.T.F.E. tapes. The shielded line may be provided with a protective wrapping. In the case of a shielded winding, the mean diameter is not greater than #/40.
Patent GB-361060-A (GB)
Title: Improvements in and relating to the manufacture of rubbered fabric endless transmission belts and the apparatus therefor
Filed: 1930-10-08
Abstract: 361,060. Making driving belts: DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and BARTLE, H., of Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. Oct. 8, 1930, No. 30098. [Class 80 (i).] Apparatus for making endless transmission belts from a strip of rubbered fabric comprises a drum 10 which is driven by a chain 18 from a countershaft 19 driven from an electric motor 16 through a chain 22 and clutch 24 and on which the fabric strip M is helically wound from a spool 38 carried by a member 34 traversed on a threaded shaft 33 driven by the chain 18. The convolutions of the helix preferably overlap slightly, and a projection 67 on the member 34 co-operates with a stop 66 on a rod 64 connected to the clutch mechanism so as to disengage the clutch when a predetermined length of strip has been wound. One or both of the elements 66, 67 is or are adjustable, and the member 34 is provided with a handle 73 adapted to release it from the threads so that it can be traversed independently. When the belt is required to have a covering of other material, such material BM, Fig. 3, is laid on the drum as shown, after the winding of the fabric M is completed. The fabric M and BM is then rolled sidewardly into the form of an annulus of circular cross-section by pulling over the drum a ring 47 to which one end of each of a number of uniformly-spaced flexible strips 44 arranged in longitudinal grooves in the drum is secured, the other end 45 being secured to the drum. The ring 47 is normally held by clips 48 and is pulled over the drum by means of claws 50 pivoted on a carriage 53 movable on rods 54 and connected to a fluid-pressure operated piston 58 by a chain 56. The return movement of the carriage is effected by a weight 60. At the end of the rolling operation the annulus is disposed around a ring 70, Fig. 3, on the drum, which ring is then detached and fitted into members 71, 72, Fig. 4, to form a mould in which the final shaping and other operations are performed. Specification 337,176, [Class 80 (i), Gearing, Belt &c.], is referred to.
Patent GB-266473-A (GB)
Title: Improvements in apparatus for playing indoor games simulating golf
IPC: A63F7/06
Filed: 1925-11-30
Abstract: 266,473. Hearsum, H. L. Nov. 30, 1925. Table games.-An indoor game simulating golf is played on a flexible sheet 11 having a hole or holes 10 in axial alignment with a ring or rings 12 on the underside of the sheet. The rings, which may be secured to the sheet, give the sheet an even surface leading up to the hole. A circular disc 14 is struck by a club whose head is cut with a number of heads from a single block of wood. The club head may be loaded, as at 17, and its handle may be provided with a rubber grip 16. The sheet may be of cloth, bunkers and other hazards being marked on its surface.
Patent GB-1321365-A (GB)
Title: Toy construction systems
IPC: A63H33/08
Filed: 1971-06-29
Abstract: 1321365 Toy building blocks J M A PIBET 29 June 1971 [16 Sept 1970] 30377/71 Heading A6S A toy building block comprises a hollow box with an open face, the face 1 opposite said open face being provided with outwardly and inwardly extending protuberances 2, 3 and the protuberances 2 having central holes 4 of the same diameter as that of the protuberances 3. The inside width m of the box is related to the diameters D E , D I  of the protuberances 2, 3 and the number of rows f, of outwardly extending protuberances 2 by the equation m=f. D E +(f-1) Di. The ratio of D E  to D I  is preferably a whole number particularly 3. The protuberances 3 are preferably arranged in staggered rows and their number Ni is given by the equation: N I =2f.c-(f+c) where c is the number of columns of protuberances 2. The block may be strengthened by internal partitions 5 and 5'. Various modes of coupling two blocks are illustrated in Figs. 4 to 11 (not shown). The protuberances 2 may be formed with radial notches or alternatively the protuberances 3 may be extended so that they project from the base of the block (Figs. 12, 13, not shown) permitting further variation in the mode of coupling (Figs. 14, 15 not shown).
Patent GB-654348-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L25/00
Filed: 1948-11-23
Abstract: 654,348. Pipe joints. STEVENS, A. H. (Lock Joint Pipe Co.). Nov. 23, 1948, No. 30392. [Class 99(i)] Two concrete pipes have, respectively, a steel spigot ring comprising a bearing portion 16 joined by a sloped portion 18 to a spigot portion 17, and a steel bell ring having a. bearing portion 21 joined by a sloped portion 25 to a bell portion 24, the two sloped portions together with portions 17, 21 defining a space to receive a gasket 34. Portions 16, 24 are secured to the longitudinal steel reinforcement 27, 28 of the pipes; alternatively, portion 16 may have an integral annular portion of smaller diameter forming the connection to the reinforcement. The inner diameters of portion 21, 24 are equal to or greater than the outer diameters of portions 16, 17, and to allow misalignment of adjacent pipes the clearance between portions 17, 24 may be greater than that between portions 16, 21. Each ring may be rolled from flat strip.