baber/WOPTO huggingface dataset:
Patent GB-309841-A (GB)
Title: Improvements in, or relating to, alloys
IPC: C22C38/38
Filed: 1927-10-15
Abstract: 309,841. Etchells, H., Popplewell, A., and Cameron & Son, Ltd., L. Oct. 15, 1927. Alloys.-An iron alloy contains 5-10 per cent of manganese, and 12-40 per cent of manganese and chromium together, the remainder being iron, carbon, and silicon. Up to about 1 per cent of nickel, cobalt, silicon, vanadium, titanium, molybdenum, aluminium, copper, or tungsten may be added.
Patent GB-1031065-A (GB)
Title: Tooth crown constructions
IPC: A61C13/00
Filed: 1963-07-11
Abstract: 1,031,065. Tooth crowns. V. ANDREW. July 11,1963 [July 12,1962], No. 27444/63. Heading A5R. In making a crown for a tooth stump 1 a shell is cast which has a double wall 2, 3, at the lingual side, with an intervening space 5 into which the porcelain or other coating material 9, for the labial face, extends. Protrusions 7 may be formed on the front of the cap 2 to assist adhesion of the porcelain. Suitably shaped shells, made from wax, are set up on a model of the stump and employed in making a plastic cast of the crown. The final crown hood is then cast in metal and the coating 9 is applied.
Patent GB-727919-A (GB)
Title: Improvements in increasing the crease-resistance of fibres and fabrics
IPC: D06M13/12
Filed: 1952-10-31
Abstract: The process of the parent Specification, according to which regenerated cellulose fibres and fabrics are impregnated with an aqueous solution containing (1) an aliphatic dialdehyde or a -keto-aldehyde having a straight or branched carbon chain of not more than 10 C atoms, and (2) an aliphatic aldehydic carboxylic acid or keto carboxylic acid wherein the keto group is in the a  position with respect to the carboxyl group, followed by drying and heating, is modified in that the impregnating solution further contains boric acid or a salt which will yield boric acid by hydrolysis, the pH of the solution being maintained between 3 and 4.2.  The pH of the solution may be adjusted with alkali-metal or alkaline-earth metal salts which are dissociated to a slighter degree than oxalic acid, e.g. the tartaric acid or phosphoric acid salts.  When the impregnating solution contains a dialdehyde of relatively low boiling point, a water-soluble alkoxycellulose, cellulose carboxylic acid or starch may be added, with which the aldehyde reacts to form a difficulty soluble compound.  The solution may further contain an optical bleaching agent or a cation-active or non-polar surface-active substance.  The treated materials may be dried at temperatures below 100 DEG  C.  In examples the impregnating solution comprises glyoxal, glyoxylic acid, boric acid or borax and acetic acid present as an impurity in the glyoxal solution.  In example 5 the glyoxal is derived from a polyglyoxal solution, and in example 2 the composition comprises glyoxal containing both nitric and acetic acids as impurities, glyoxylic acid, boric acid, sodium bicarbonate, sodium cellulose glycollate and a non-polar softener.
Patent GB-1293650-A (GB)
Title: Polyvinylidene fluoride composition and coating thereof
Inventor: SEGAWA MASAHIRO
IPC: C09D127/16
Filed: 1970-06-08
Abstract: 1293650 Vinylidene fluoride polymer compositions KUREHA KAGAKU KOGYO KK 8 June 1970 [12 June 1969] 27597/70 Heading C3P [Also in Division B2] A powdered vinylidene fluoride polymer composition for coating comprises 100 parts by weight of a polymer selected from homopolymers and copolymers of vinylidene fluoride, each of the copolymers containing at least 90 mol. per cent of vinylidene fluoride, the polymer having an inherent viscosity of from 0À6 to 1À4, as measured in dimethyl formamide at a concentration of 0À4 g./dl. at 30‹ C., and from 10 to 100 parts by weight of an inorganic substance mixed with the polymer and being resistant to attack by acids and alkalis, both the inorganic substance and the polymer being in powder form with an average particle size of from 50 to 325 mesh according to Taylors mesh standard. In the examples the compositions contain vinylidene fluoride polymer, vinylidene/fluoride/tetrafluoroethylene copolymer, silica sand, graphite, molybdenum disulphide and chromium oxide.
Patent GB-836471-A (GB)
Title: Improvements in or relating to pit props
IPC: B66F3/42
Filed: 1957-09-02
Abstract: 836,471. Mine roof supports. HOESCHWESTFALENHUTTE A.G. Sept. 2, 1957 [Oct. 16, 1956], No. 27642/57. Class 20(2) An hydraulic pit prop comprising a ram 1 sliding in a cylinder 3 has a pressure relief valve 12, an hydraulic fluid inlet valve 5 and a pressure release valve 9 in the head 2 of the ram 1, the inlet valve 5 and release valve 9 operating in accordance with the pressure of fluid in an inlet duct 4 and a release duct 7 respectively which serve to supply pressure fluid to the prop. The prop is set by admitting fluid to the pressure chamber 6 through the duct 4 and valve 5. Overload pressure opens the valve 12 to allow fluid to escape to a chamber 13 via a duct 14 and to the outside via an annular duct 8 and the duct 7. To remove the prop the fluid is passed through the duct 7, the annular duct 8 and duct 14 into the chamber 13, which thereupon expands contracting the prop. At the same time the piston of the release valve 9 is raised to allow fluid from the pressure chamber 6 to pass through ducts in the piston into a duct 11 and thence to the chamber 13 or to the outside via the duct 4.
Patent GB-444894-A (GB)
Title: Improvements in or relating to the treatment of hydrocarbon motor fuel
IPC: C10L1/183
Filed: 1934-09-26
Abstract: Gum formation and other deterioration of hydrocarbon motor fuel is retarded by adding less than 2 per cent of a lignite tar fraction, preferably one within the B.P. range 200--300 DEG  C.  The fraction may be used dissolved in benzene or other solvent miscible with gasoline, and may first be treated with alkali and/or acid.  Example: 0,0--0,20 per cent of a 230--280 DEG  C. fraction of lignite tar is added to cracked gasolene.
Patent GB-418785-A (GB)
Title: Burner for gas stoves
IPC: F23D14/06
Filed: 1933-10-07
Abstract: 418,785. Gas burners. SORENSEN, E. L. J., 25, Lollandsvej, Copenhagen. Oct. 7, 1933, No. 27706. Convention date, Dec. 12, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 9, 1934.] [Class 75 (i).] A gas burner for stoves, &c., comprises a cup-shaped burner head 21 provided with a cover 25, slotted at the edge to form outlets 28, an annular baffle 24 supported below the cover on the reduced end 23 of the mixing-tube projecting into the head, and a detachable nipple 13 mounted in the upper end of a gascock body 11. The cock plug 14 is operated by means of a handle 20 and held in position by a spring 15 and a screw-plug 16. Specification 414,920 is referred to. The Specification as open to inspection under Sect. 91 comprises also a cover having an annular slot with small holes leading thereto for effecting ignition at all the burner outlets. This subject-matter does not appear in the Specification as accepted.
Patent GB-972455-A (GB)
Title: Improvements in connectors for electric circuit boards
Inventor: DAVIS CLARENCE HARRY
IPC: H01R12/72
Filed: 1962-07-19
Abstract: 972,455. Two-part couplings. HALLAM, SLEIGH & CHESTON Ltd. Oct. 9, 1963 [July 19, 1962], No. 27730/62. Heading H2E. Sloping surfaces 17a and 18a at the front ends of forwardly-extending pairs of intermediate abutments 17 and 18 of connector 1 are provided to guide the rear edge of circuit board 2, which may be warped, so that socket contacts 9 properly engage with plug contacts 10. The connector has longitudinally grooved arms 13 for receiving the side edges of the board. More than one pair of abutments may be used and a large board may co-operate with two connectors stacked vertically or side by side.
Patent GB-242648-A (GB)
Title: Improvements in or relating to methods of and apparatus for impregnating insulating tubing or similar objects
IPC: H01B13/30
Filed: 1925-11-04
Abstract: 242,648. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 4, 1924, [Convention date]. Moulding pipes and tubes.-In the preparation of woven insulating tubing, the moistened tubing is shaped and dried as it is drawn by means of rollers over a stationary mandrel. The tubing after passing through a moistening bath c, Fig. 1, is drawn over a mandrel e beltween four pairs of rollers f, adapted to the form of the mandrel. The rollers are of soft material such as rubber or wood, or of metal with a roughened surface. The mandrel has a curved front end e<1>, Fig. 3, which engages with the first lower roller, so that the mandrel is kept in poeition axially. Between each pair of rollers the tube is dried by steam or electric heating apparatus. In a modification, the front end of the mandrel is not curved, but the mandrel is held in position magnetically by solenoids placed between the pairs of rollers, the mandrel being in sections of magnetic and non-magnetic material. The tube is then dried by heat produced by eddy currents in the cores.
Patent GB-503785-A (GB)
Title: Improved methods of and bricks for building walls and the like
IPC: E04B2/04
Filed: 1937-10-13
Abstract: 503,785. Bricks. GRICE, W. S. Oct. 13, 1937, No. 27841. [Class 87 (i)] A rhomboidal brick has long and short sides L, S related by the expression L = 2S + B where B is the thickness of bonding between adjacent bricks. The angle alpha of the brick is given by the expression cos alpha = S+B/L. A recess 4 to receive bonding material and reinforcement may be provided in one or both long sides and frogs 8 may be provided on the upper and lower faces. Triangular bricks may be provided for use with the rhomboidal bricks at corners and are so shaped that when two are laid together with a thickness B of bonding material they form a rhomb identical with that formed by two rhomboidal bricks laid together. Alternatively a quadrilateral brick may be provided having sides CS<1> and CS<2> equal to D and D - S - B where D is the perpendicular distance between the short sides of a rhomboidal brick, the angles being as shown. In a modification, three sides are at right-angles and the fourth inclined at an angle alpha.
Patent GB-173598-A (GB)
Title: An improved process of treating ramie, hemp and the like
IPC: D01C1/02
Filed: 1920-10-01
Abstract: 173,598. Kawabe, T. Oct. 1, 1920. Retting.-In the preparation of fibres suitable for spinning from ramie, hemp, and the like, the material is boiled for about 5 hours in caustic soda or other alkali, washed to remove pectin or gum ingredients, softened by boiling for two hours in a liquid containing rice bran, and then washed and immersed for 24 hours in a filtered solution of rice bran and the heavy liquid of Kadsura Japonica. The material is dried to obtain a smooth film thereon, pounded to remove part of the film and expose the fibres, and then subjected to the action of hvpochlorite of soda or potash, which by acting upon the exposed parts, causes a twisting of the fibres. Fibres thus obtained are washed in water and sprinkled with Marseilles soap or similar softening material, and combed, and are then ready to be supplied to spinning factories.
Patent GB-939405-A (GB)
Title: Impact tool safety device
IPC: B25C1/00
Filed: 1961-08-01
Abstract: 939,405. Percussive tools. INGERSOLL-RAND CO. Aug. 1, 1961 [Aug. 1, 1960] No. 27945/61. Class 124. A single shot impact tool has means preventing inadvertent firing. The working tool comprises the rod 49 of a piston (not shown) moved in a cylinder 15 by fluid from a reservoir 11, the flow of the fluid being controlled by a trigger actuated valve 9. When the tool is prevented from being fired balls 53, held against longitudinal movement in the tool by a fixed member 41, engage a groove 51 in the rod to prevent it moving even when the piston is under pressure. The rod is released by pressing a tubular member 29 into the tool barrel 27, the groove acting as a cam to force the balls outwardly into holes 35 in the tubular member as the rod moves.
Patent GB-809322-A (GB)
Title: Improvements in or relating to composite products of rubber and textile yarns
Inventor: GOY RONALD STANSFIELD
IPC: C08J5/04
Filed: 1954-05-28
Abstract: A composite material comprises a rubber composition in which are embedded single or doubled yarns each comprising a core of continuous filamentary material, e.g. regenerated cellulose, nylon, or polyethylene glycol terephthalate filaments, covered by a layer of staple fibres, e.g. one of the above-mentioned materials or cotton. The yarns may be coated with a latex resorcinol-formaldehyde composition to improve adhesion of the yarn to the rubber.
Patent GB-197634-A (GB)
Title: Improvements in projector lanterns and slides therefor and in means for producing animated and dissolving pictorial effects in color
IPC: G03B33/00
Filed: 1922-10-14
Abstract: 197,634. Kinemads, Ltd., (Assignees of Townsend, O. A., Cassels, A. V., and Paton, J. A.). May 10, 1922, [Convention date]. Elements moving always in one place, rotating. -Kinematograph or changing picture effects for advertising purposes &c. are obtained by the use in an optical projection apparatus of a transparency bearing pictorial matter or lettering in different tints, and the provision of a colour filter rotating continuously or intermittently in one advertising purposes &c. are obtained by the use in an optical projection apparatus of a transparency bearing pictorial matter or littering in different tints and the provision of a color filter rotating continuously or intermittently in one direction and having sectors tinted so as to be complementary to the tints of the transparency. As shown, the slide 10 bears an image having parts uncoloured, and other parts, some of which represent the same part in different positions, tinted blue-green or red. A rotary colour filter 17, driven by hand or motor, is mounted on a centre out of the path of the light beam, and has blue-green and red sectors 16 in alternation. Each sector masks the parts of the image in the complementary tints, so that a changing or animated effect is produced in the picture projected on the screen 20. One or more sectors of the filter may be transparent.
Patent GB-1476180-A (GB)
Title: Determination of mechanical properties at each position on a member and the field of residual or elastic stresses occuring there
IPC: G01N3/40
Filed: 1974-06-24
Abstract: 1476180 Testing material SKF COMPAGNIE D'APPLICATIONS MECANIQUES and ANVAR AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 24 June 1974 [26 June 1973 21 Feb 1974] 28003/74 Heading G1S A non-destructive process for determining the elastic limit of residual stresses in the material of an article adjacent its surface at various depths comprises passing an element having a hemispherical, cylindrical or ellipsoidal contacting surface against the article surface and plotting deformation against load. A series of elements having spherical surfaces of different radii may be pressed successively against the surface with progressively increasing force and a curve plotted for each element the maxima of the curves corresponding generally to the elastic limit and the "envelope" of the series giving variations with depth of the characteristic through e.g. a surface layer hardened by treatment. A single e.g. cylindrical element may be engaged with the article in successive orientations differing by 90 degrees in the plane of the surface, Tresca or Von Mises criteria being used to determine residual stresses in the article. Strain gauges attached to the article surface adjacent the test area indicate when the elastic limit of the material is reached.
Patent GB-1014513-A (GB)
Title: Production of polymers of ethylene
IPC: C08F10/00
Filed: 1962-07-20
Abstract: Ethylene, together optionally with an ethylenically unsaturated monomer, is polymerized at elevated temperature and pressure, e.g. 40-400 DEG  C. and 5000-60,000 p.s.i., in the presence of a free radical catalyst in an elongated reactor in which the reaction mixture is cyclically circulated, ethylene and catalyst are fed separately or together into the reactor and ethylene polymer is recovered from the withdrawn reaction mixture.  The ethylene may be copolymerized with ethyl acrylate, vinyl propionate or acetate, propylene butene-1, acrylonitrile or vinyl chloride.  The reaction mixture may be circulated from a point in the reactor where the temperature is above the polymerization initiation temperature to at least one point upstream in the reactor where the reaction mixture is subjected to further polymerization; from a point where the polymerization rate has passed the maximum to a point upstream in the reactor where the ethylene has not yet reached the maximum; from a point at or adjacent to the exit of the reactor to a point upstream where polymerization occurs; from a point to another point in the reactor at which the pressure is higher than at the point of removal; or from a point in the reactor to the inlet of the reactor where feed ethylene at - 100 DEG  C. to 100 DEG  C. is also introduced. The free radical catalyst may be oxygen or a peroxygen compound, e.g. lauryl peroxide or di-tert.-butyl peroxide.
Patent GB-298084-A (GB)
Title: Manufacture of 1 : 1 : 2-trichlorethane
IPC: C07C17/04
Filed: 1928-10-01
Abstract: 298,084. I. G. Farbenindustrie Akt.- Ges. Sept. 30, 1927, [Convention date]. 1 : 1 : 2-Trichlorethane is obtained by direct addition of vinyl chloride and chlorine gases without the use of a solvent, by a suitable application of light or heat energy. Thus, a gaseous mixture of the two reactants, containing about 5-10 per cent excess of vinyl chloride, may be exposed to direct sunlight or any suitable artificial source of light. Suitable cooling devices are used to keep the temperature of the reaction chamber below 80‹ C. Alternatively, the two gases, in the proportions stated above, may be combined without formation of by-products at a temperature between 100‹ C. and 250‹ C., with careful exclusion of all light. The optimum temperature in this case is between 140‹ C. and 150‹ C.
Patent GB-1162049-A (GB)
Title: Improvements in Electric Water Heaters
Inventor: JORGE MARIO FERREIRA
IPC: F24H1/10
Filed: 1967-06-19
Abstract: 1,162,049. Electric water heaters. M. F. JORGE. 19 June, 1967 [13 July, 1966], No. 28205/67. Heading H5H. A continuous flow heater with a free outlet, e.g. a geyser, comprises a chamber divided by a removable annular plate 3 into upper and lower compartments 1, 2, the lower compartment 2 containing a metal sheathed heating element 21 whose ends are sealed in plate 3 and electrically connected to a switch 7 in the upper compartment 1 which is actuated by a diaphragm 6 closing the central aperture in plate 3, the upward movement of diaphragm 6 being positively limited over substantially its full area by a backing plate 9 and flange 13. The outlet pipe 19 extends through a cylinder 18 in lower chamber 2 and its upper end is above the level of the coiled heating element 21. An inlet pipe 23 is provided in the side of compartment 2. When water is flowing through compartment 2, the increase in pressure causes diaphragm 6 to rise and actuate microswitch 7 which turns on the heating element. A thermostat may be provided.
Patent GB-714232-A (GB)
Title: Improvements in sun-and-planet or multi-countershaft gears
IPC: F16H1/28
Filed: 1952-11-10
Abstract: 714,232. Toothed gearing. STOECKICHT, W. G. Nov. 10, 1952 [Nov. 10, 1951], No. 28298/52. Class 80 (1) In an epicyclic gear in which the sun wheel or the annulus is coupled to. its driving or driven shaft or member by a pivotal connection to allow of the equalisation of the tooth forces on the planet pinions, the tooth engagement between the sun or annulus and the planet pinions is made slighty convex, preferably by making the teeth of the planet pinions slightly convex as shown in Fig. 2. In Fig. 1, the sun gear 2 is coupled to shaft 8 through a toothed connection 9, 10 and engages planet pinions 3 on a carrier 5 secured to. a shaft 7. The annulus 6 is held stationary by a toothed coupling 12, 13 to a ring 14. The invention is also applicable to a similar arrangement of gearing in which the carrier member 5 is held stationary to form with the gears 2 and 6 a multi-countershaft gear. The toothed couplings 9, 10 and 12, 13 may be replaced by rubber or other flexible couplings.
Patent GB-1402022-A (GB)
Title: Presettable equaliser
IPC: H04L27/01
Filed: 1972-06-16
Abstract: 1402022 Automatic equalizers NIPPON ELECTRIC CO Ltd 16 June 1972 [16 June 1971] 28408/72 Heading H4R In a transversal equalizer for equalizing signals obtained by demodulation of quadrature amplitude modulated pulse signals and which is set up by a test signal before normal transmission. The demodulated pulse signals Rez(t) and Imz(t) are fed to respective tapped delay systems 21, 22 &c, with multipliers 3i1 3i2, 3i3 3i4, connecting each of the tappings to summing circuits 41, 42, so that each summing circuit provides an equalized signal for a respective channel, from signals from the taps of both delay systems, providing cancellation both of the normal pulse delay distortion in the respective channel and the cross talk distortion from the other channel. The test signal comprises a series of pulses separated by intervals such that the responses from successive pulses do not overlap. In the apparatus for setting up the equalizer a peak detector 46 detects the largest peak in the input signal to synchronize a clock generator 50 and to cause sampling and storage of that largest peak in circuit 47. The value of the signal peak in each channel from circuit 47 is multiplied, in multiplier 63, with the respective equalizer output error signal, sampled at the normal system clock rate. The resulting signals in respect of the two channels are compared in comparator 80, and according to the comparison, and relative polarities, the multipliers of the appropriate taps, corresponding to the particular equalized output sample time, are adjusted in the appropriate direction by an appropriate amount, the major portion of the equalizer response being varied by an amount ŒD according as the product and the cross talk portion of the equalizer response is adjusted by the amount ŒjD according as the product where RmZ(o) and ImZo are the peak signals in each of the channels and e*(hT) the error values by which the equalizer output samples deviate from the required outputs. As shown in Fig. 6, the gain of the centre tap of the equalizer, corresponding to the major sample of the impulse response, is adjusted to make the major sample equal in amplitude to the voltage of source 57 which is subtracted from the equalizer output at 59 during sampling of the main value. In an alternative arrangement, Fig. 7 (not shown), the centre tap multipliers are set at unity and the voltage source 56 gate 58 and subtractor 59 are omitted.
Patent GB-661862-A (GB)
Title: Improvements in automatic record-changing mechanism for gramophones
IPC: G11B17/16
Filed: 1947-10-24
Abstract: 661,862. Mounting gramophone pick-ups. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPEN-FABRIEKEN. Oct. 24, 1947. [July 24, 1946] No. 28431/47. [A Specification was laid open to inspection under Sect. 91 of'the Acts, Dec. 29, 1947] Class 40 (ii). In an automatic record changer, the pick-up arm 1, moved laterally by cam 5 and control arm 3, is lowered on to the ungrooved edge of the record, and a spring 8 acting on a projection 9 on the control arm 3 urges the needle into the first groove. The spring pressure is relieved by a cam 6 and push rod 7 when the change cycle is completed.