baber/WOPTO huggingface dataset:
Patent GB-326529-A (GB)
Title: Improvements in the manufacture and production of mixed fertilisers
IPC: C05C1/02
Filed: 1928-11-16
Abstract: 326,529. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 16, 1928. Manures.-In preparing mixed fertilizers containing ammonium nitrate and other ingredients by solidification of liquid mixtures, 6 per cent or less of substances soluble in the liquid and which will increase its surface tension are added thereto. The amount of water in the liquid is reduced to 10 per cent. Calcium nitrate, urea, salts of urea, sodium nitrate, sodium sulphate and other salts of sodium are mentioned as suitable substances capable of reducing the surface tension. According to one example a mixed fertilizer iscomposed of ammonium nitrate and calcium carbonate with a small quantity of calcium nitrate, a liquid mixture of these ingredients being solidified by spraying. In a second, the ingredients are ammonium nitrate, ammonium sulphate and a small quantity of Chili saltpetre; and, in a third, ammonium nitrate, ammonium sulphate and a small quantity of anhydrous sodium sulplate. Specification 315,485 is referred to.
Patent GB-416220-A (GB)
Title: Improvements in or relating to wood rollers
IPC: B65H27/00
Filed: 1933-12-01
Abstract: 416,220. Rollers. SMITH'S CASE & ROLLER CO., Ltd., and SMITH, A. E., Victoria Saw Mills, Buckley Street, Bury. Dec. 1, 1933, No. 33707. [Class 42 (ii).] The metal binding ring 4 is locked in position on the end of a wooden roller 1 by a spring ring 5 within a groove partly in ring and partly in the roll. The ring 5 is bevelled at 7 and the ring 4 flared at 11 to facilitate assembly. The ring 4 may be integral with ribs 8 and a boss 9.
Patent GB-1119666-A (GB)
Title: Organosilicon polymers
Inventor: BAMFORD WILLIAM RANDALL
IPC: C08G77/52
Filed: 1965-08-06
Abstract: A resinous copolymer is made by reacting (A) a compound of the formula <FORM:1119666/C3/1> with (B) a silane of the formula RmSiY4- m wherein each R is a saturated or unsaturated hydrocarbon radical with or without halogen substituents, X is a hydroxy or alkoxy radical, Y is an alkoxy, acyloxy or hydroxy radical except when X is alkoxy, in which case Y is acyloxy or hydroxy, R1 is a phenylene, diphenylene or diphenylene oxide radical, n is 1 or 2, and m is 0, 1 or 2.  Preferably 3 to 6 mols. of (B) are reacted with 8 mols.of (A) in the presence of a metal carboxylate catalyst and an inert solvent, at 80 DEG  to 200 DEG  C.  In a typical Example (3) a mixture of 4,41-bis-(diphenyl-hydroxysilyl) diphenyl ether, phenyl triacetoxysilane, toluene and stannous octoate, were refluxed for 1 hour, cooled to 20 DEG  C. and filtered to yield a solution from which a film was cast and cured.  Uses-For casting films; preparation of laminates; and preparation of filled moulding powders, e.g. glass fibre or asbestos filled moulding powders.
Patent GB-479158-A (GB)
Title: Improvements in and relating to spark plugs
IPC: H01T13/34
Filed: 1936-12-09
Abstract: 479,158. Sparking-plugs. GENERAL MOTORS CORPORATION. Dec. 9, 1936, No. 33807. Convention date, Dec. 9, 1935. [Class 7 (iv)] The central electrode is in two parts, the seating of the inner part 6 on the ledge 5 in the insulator being sealed by plastic material 8, consisting of a liquid binder and an inert filler, which hardens when heated. Oils which are subject to polymerization, particularly tung or china wood oil, are used as binders. Perilla oil, linseed oil, rapeseed oil may also be used, 15 per cent of sulphur monochloride being preferably added. Talc, french chalk, litharge, clay, lampblack, granular graphite, copper and other metals in powdered form are used as fillers, especially those which are electrically conductive. The upper part of the electrode is screwed down against the sealing medium after the latter has been tamped into position. Either the upper or lower electrode section may have a projecting prong 15 providing electrical continuity, the end of the prong being turned over in assembling the parts. A cylindrical distance piece 17 may take the place of the prong, or the upper and lower electrode sections may be separated by a resistance element 19 preventing high-frequency emission.
Patent GB-1523483-A (GB)
Title: Semiconductor optical modulator
IPC: G02F1/01
Filed: 1975-08-14
Abstract: 1523483 Controlling light NORTHERN ELECTRIC CO Ltd 14 Aug 1975 [17 Sept 1974] 33939/75 Heading G2F A light modulator of metal-insulator-semiconductor diode construction comprises a semiconductor substrate 20 on which is formed in succession low refractive index. Semi-conductor layer 21 of the same conductive type is the substrate, a light guiding semi-conductor layer 22 which is undoped or lightly doped in the same sense as layer 21 and substrate 20 and which has a different optical absorption according to whether it is in a state of accumulation, depletion or inversion, an electrically insulating layer 23 of lower refractive index than layer 22, and a metal layer 24. A metal contact layer 25 is provided on the other side of the substrate. The layer 22 has a thickness approximately equal to the maximum depletion layer width for its doping concentration. Layer 23 may be of Si 3 N 4 ; silicon oxynitride; Al 2 O 3 ; thermally or anodically grown oxides of GaAs; or phosphorus doped SiO 2 . As particularly described, layers 21 and 22 are deposited by liquid phase epitoxy, layer 21 being 5 Á of GaAlAs containing 1% phosphorus and doped with Te to 10<SP>18</SP> cm<SP>-3</SP>,and layer 22 being 1 Á of GaAs doped with Sn to 10<SP>15</SP> cm<SP>-3</SP>. In Fig. 4, a light modulating diode as in Fig. 2 is combined with a light emitting diode 41, the metal layer 36 and semiconductor layers 30-32 being common. In the diode 41, after etching the insulator 33 a junction 34 is formed in layer 32 by ZnAs 2  diffusion followed by deposition and etching of metal layer 35. Alternatively, Fig. 5 (not shown), the emitting diode may be in the form of a double heterostructure requiring no diffusion. Further layers of P-type GaAlAs(P) and P-type GaAs are deposited on layer 32 after etching of layer 33, followed by formation of metal contact layers.
Patent GB-641214-A (GB)
Title: Cooling arrangement for combustion chambers and compressors
IPC: F02C7/16
Filed: 1945-12-14
Abstract: 641,214. Cooling cylinder heads. BOUFFART, M. Dec. 14, 1945, No. 33954. [Class 7(ii)] [Also in Groups XII, XIII, XXVI and XXVIII] A cooling arrangement for combustion chambers and compressors in which cooling is obtained by circulation of a fluid comprises a cooler surrounding the walls to be cooled in which the fluid is caused to move by means creating a high speed circulation which is independent of the quantities of fluid entering and leaving the cooler. As shown diagramatcally, combustion takes place in a coil C to which fuel and a supporter of combustion are led respectively by pipes G, O. The coil is cooled by a cooling fluid which enters by a pipe E and leaves by a pipe S. In the cooler a pump A produces high speed circulation in the cooling fluid which produces a secondary current independent of the current of fluid entering and leaving the cooler. The fluid may be water withdrawn from a boiler and the water may be vaporized in the cooler. Alternatively, the cooling fluid (air in either a liquid or gaseous state) may be the supporter of combustion used in the combustion chamber and may pass to the combustion chamber through the cooler. Compressors supplying air and gas may be cooled by coolers functioning in the same way as for those for the combustion chamber. The arrangement may comprise combustion chambers of various types which are usually provided with one or more nozzles serving to lead away products of combustion which may be utilized either for jet propulsion or for operating a turbine. It is stated that the cooling arrangement can be used for cooling the combustion chambers of internal-combustion engines. More than one combustion chamber may be arranged in the cooling jacket.
Patent GB-1423202-A (GB)
Title: Blanks for nuts and the like
IPC: F16B33/00
Filed: 1973-07-17
Abstract: 1423202 Nuts FIRTH CLEVELAND FASTENINGS Ltd 17 July 1973 34021/73 Addition to 1154713 Heading F2H In a nut blank 14, e.g. of nylon-66, having a bore to be screw-threaded by a member having a uniform screw-thread, the bore comprises a plain portion 16 to be fully threaded and an entry portion 12 having several longitudinal projections 10 spaced therearound to be formed into an interrupted screw-thread by said member, the outer ends of the projections, the end of the plain portion 16 contiguous with the inner ends of the projections, and the junctions of the inner ends of the projections with the plain portion 16 being arranged on corresponding helices. This is intended to prevent canting of the nut relative to the threaded member as they are interengaged. As shown, the projections 10 form three chordal flats in the entry bore 12.
Patent GB-486605-A (GB)
Title: Variable electric condenser with multiple units for key-board operation
IPC: H03J5/32
Filed: 1936-12-12
Abstract: 486,605. Variable condensers. KAPP, R. Dec. 12, 1936, No. 34150. Convention date, Dec. 12, 1935. [Class 37] [Also in Group XL] A number of fixed capacities of different values can be connected selectively in parallel by means of a keyboard with switch contacts. In the example shown, two sets are used with valves such as to give progressive capacities by 5 cm steps between 0 and 500 cm. A small variable condenser d may also he included which may be operated in known way by the carrier wave of the desired station to obtain exact tuning in a wireless set. Key buttons a serve to disconnect all the switches in a row.
Patent GB-389578-A (GB)
Title: Improvements in or relating to apparatus for discharging loaded wagons or other receptacles
IPC: B65G67/00
Filed: 1931-12-09
Abstract: 389,578. Wagon-tipping apparatus. MITCHELL, F. G., Albyns, near Romford, Essex. Dec. 9, 1931, No. 34154. [Classes 78 (ii), 78 (iv), and 78 (v).] A tippler-hoist for discharging into a raised bunker a comprises a carrier f, f<1> which is raised on guides d to any desired height by a winch v, and independent means, such as a winch 6 on the carrier, for tipping the cradle g on the carrier, as shown in broken lines. The cradle g is pivoted on the carrier at hand tipped by ropes 5 which are wrapped around the curved surface g<2>. The wagon rests upon a platform k pivoted out of centre in the cradle g. On hoisting, the platform k, is raised from the support o and tilts to bring the wagon against a side support i. When the hoisted carrier is brought to rest and the cradle is tipped by means of the winch 6, the top of the wagon engages a bar 8 on arms 7 which are pivoted on the cradle as at h and are supported by balance weights 11. The dead load is balanced by weights 4 on ropes 2 connected to the carrier at 5<1>, and about half of the live load is balanced by weights y on tail ropes w led from the winch v. The coal &c. is discharged over a plate 12 forming an extension of the carrier. In a modification, Fig. 2 (not shown), the hoisting and tipping winches are mounted on the platform u above the bunker and the weight 4 is omitted. In one form of winding mechanism, Fig. 3 (not shown), the tipping winches are driven from the same motor as the hoisting winches, and the hoisting winches are de-clutched and held by a brake whilst the tipping winches run on for tilting and are reversed for righting the cradle. The winches may be operated by separate motors.
Patent GB-1442994-A (GB)
Title: Support appliances such as beds
IPC: A47C27/10
Filed: 1972-07-21
Abstract: 1442994 Mattresses &c. WATKINS & WATSON Ltd 2 Aug 1973 [21 July 1972] 34197/72 Heading A4M A bed, mattress, chair or like support appliance comprises a plurality of inflatable cells 2 mounted one on each of, and extending along the length of, a plurality of parallel bars 4 through which air is passed via an inlet 9 into the cells 2. The air, which may be heated, passes out of the cell 2 either through its porous wall or through an outlet 10 extending through an associated bar 4. As shown, the inlet 9 and outlet 10 communicate with the interior of a tubular bed frame 3 to which the bars 4 are secured by bolts 5. The cells 2 may be supported on rigid blocks 6 at the ends of the bars 4. Foam material 23 is disposed between the blocks 6. The cell 2 is anchored by ropes 16, 17 engaged in a loop in a web of the cell. Web portions 21, 22 of the cell may be secured to the frame 3 by "Velcro" (Registered Trade Mark) or like quick release fasteners. The cells may be provided internally with webs or strips to limit expansion of the cell. Different size bushes 25 may be fitted to the various cells to vary the air-flow. In other embodiments the bars may be tubular.
Patent GB-1315199-A (GB)
Title: Non-woven fabric and method of making same
IPC: D04H5/02
Filed: 1970-07-14
Abstract: 1315199 Non-woven fabrics FIELDCREST MILLS Inc 14 July 1970 [10 Feb 1970] 34204/ 70 Heading D1R A non-woven fabric comprises a layer 21 of crimpted continuous filaments extending in a generally common direction in random overlapping sinuous paths, needled to at least one layer of staple fibre web, the filaments having a denier of 0.8 to 15 and 3 to 25 crimps per inch. Preferably the crimpted filament layer is contained between staple fibre layers 22a, 23a. crimpted tow 21a of continuous rayon, polyester, nylon or acrylic filaments having a stretch ratio of at least 1.5 is passed through air spreader 32 then through pairs of crimp deregistering rolls 34a, 34b. These each consist of a helically grooved roll and a smooth rubber coated roll, the second pair rotating faster than the first. The crimps in each filament are thus moved longitudinally out of registration with those of adjacent filaments. The tow is spread further by air spreaders 40-43 and pairs of rolls 44-47, then deposited on web 22a, formed from staple rayon, polyester or acrylic fibres, possibly by air-laying or drawing, but preferably by carder 50 and crosslapper 51 and carried by conveyor belt 52. The partly orientated staple fibres are predominately transverse to the continuous filaments. A similar staple web 23a is laid on top of filament web 21, and the layers needled from both sides by loom 60 to a density of 300-1500 punches 1 sq. in. The resulting vertically orientated staple fibres (n, Fig. 4, not shown) give the fabric coherence. Additional layers of staple fibre may be needled to the fabric (Fig. 9, not shown). These are preferably of acrylic or polyester fibres. The surface of the fabric is napped or brushed.
Patent GB-640085-A (GB)
Title: Improvements in and relating to the making of dry adhesive films and laminated structures cemented together with said films
IPC: C09J7/21
Filed: 1945-12-18
Abstract: A dry adhesive film, suitable for use in bonding lamin , is prepared by impregnating a porous film with an aqueous urea-formaldehyde condensation product, a metal hydroxide, ammonia, and an acid catalyst, the proportions of the ingredients being adjusted to give a pH between 4.5 and 7, and thereafter drying the impregnated film. Suitable acid catalysts are acetic, oxalic, phthalic and benzoic acids, ammonium sulphate or phosphate, and salts of chloric, perchloric or chloracetic acids. Hydroxides of alkali metals or alkaline earth metals may be used. To the impregnating solution may be also added urea, thiourea, melamine, urethane, resorcinol or cyanamide or condensation products of these substances with aldehydes.  In an example urea and formaldehyde are reacted at pH 5, the mixture is neutralized with ammonia, and primary ammonium phosphate, sodium hydroxide, and ammonia are added.  A sheet of paper is impregnated with the solution and dried at 50-70 DEG  C.  The sheets are alternately interposed between sheet material, e.g. veneer, paper, or textile fabric and heated under pressure at between 90 DEG  and 140 DEG  C.
Patent GB-1242591-A (GB)
Title: Heat treatment of silicon steel to produce preferred orientation
Inventor: NICHOLLS JOHN RICHARD
IPC: C21D1/76
Filed: 1968-07-18
Abstract: 1,242,591. Annealing silicon steel. RICHARD THOMAS & BALDWINS Ltd. Oct. 10, 1969 [July 18, 1968], No.32486/68. Heading C7N. Hot-rolled strip containing up to 150 p.p. m. of oxygen is annealed, cold rolled with one or more intermediate anneals, and finally annealed at a higher temperature to bring about primary and secondary recrystallization, at least one intermediate annealing being effected in a hydrogen atmosphere containing hydrogen sulphide, hydrogen selenide, sulphur dioxide, carbon dioxide, hydrogen bromide or silicon tetrachloride.
Patent GB-1240268-A (GB)
Title: Bearings for vertical spindle high energy flywheels
Inventor: CLERK ROBERT CECIL
IPC: F16F15/315
Filed: 1967-07-25
Abstract: 1,240,268. Bearings. R. C. CLERK. 24 July, 1968 [25 July, 1967], No. 34341/67. Heading F2A. A flywheel 1 is supported on a shaft 2 which has at its lower end a cup which surrounds a stub shaft 6, the shaft 2 being supported by a washer 11 abutting the lower end of the cup, the washer being supported on a fluid film. Fluid is supplied to a chamber 14 below the washer by a screw pump 13. After the flywheel starts to rotate, the flywheel may be harnessed to drive a pump which supplies lubricant to the fluid film. The upper surface of the washer 11 may be coated (e.g. with P.T.F.E.) so that while the flywheel is slowing down, and there is insufficient energy to provide the necessary lubrication for the fluid film, the shaft may rotate on the washer. A ball bearing 8 may be provided to journal the shaft 2 about the stub shaft 6. A duplex spring 9 is provided to load the bearing axially. Alternatively a plain bearing may be used. Lubricant may be supplied to the journal bearing by means of screw pump 15.
Patent GB-869627-A (GB)
Title: Improvements in apparatus for testing alignment and directions
Inventor: MEIER BERNHARD
IPC: G01B11/27
Filed: 1957-11-04
Abstract: 869,627. Optical testing apparatus. CARL ZEISS JENA, VEB. Nov. 4,1957, No. 34370/57. Class 97(1) An apparatus for testing alignment and direction comprises a colimating mark 5 which is illuminated by a lamp 3 and disposed in the focal plane of an objective 8 so that parallel rays are incident on a mirror 2 attached, for example, to a shaft 1 whose alignment and direction are to be tested. The light rays from the mark 5 are returned by the mirror 2 and'an image is formed in the focal plane of a telescope eyepiece 10, a reticule 11 being provided in this plane. If the shaft 1 is inclined to the telescope axis the image of the mark 5 will be displaced from the zero position on reticule 11, such displacement being a measure of the inclination of the shaft axis. In order to test alignment, the mirror 2 is provided with at least one mark or a reticule and by displacing the dispersive lens 7 this mark is focused on the reticule 11, the lamp 3 being switched off during this operation. The position of the image of the mirror mark on the reticule 11 is an indication of the amount of misalignment which may be measured by disposing in the light path two adjustable plane parallel glass plates.
Patent GB-1150004-A (GB)
Title: Improvements in or relating to Mounting Spindles for Bobbins
IPC: B65H49/26
Filed: 1966-08-01
Abstract: 1,150,004. Mounting spindle for bobbins. VYZKUMNY USTAV BAVLNARSKY. 1 Aug., 1966 [2 Sept., 1965], No. 34428/66. Heading D1J. The invention is concerned with a rotatable package supporting sleeve 3 comprising means to prevent backward rotation of the package 14. The sleeve 3 rotates about a stationary horizontal pin carrying an end disc on which a plate 7 is mounted. Trapped between the plate 7 and the inner surface of the sleeve 3 is a ball or roller 10. The plate 7 is so positioned that when the sleeve 3 stops rotating the ball or roller 10 can settle in a position where its potential energy causes it to wedge between the plate 7 and the sleeve 3 and so prevent backward rotation of the package 14. The material on the package 14 is unwound in the direction of the arrow 13. One position for thep late 7 is shown in full lines. An alternative setting is shown in broken lines.
Patent GB-480095-A (GB)
Title: Auto-compressors with at least two stages and with opposed, free pistons
IPC: F02B71/04
Filed: 1936-07-13
Abstract: 480,095. Air compressors. PESCARA, R. P. July 13, 1936, No. 34495 /37. Convention date, July 15, 1935. Divided out of 480,101. [Class 8 (i)] To reduce the stresses on the connecting linkage, and to facilitate starting, the inactive face of the high pressure piston 22 is exposed to the air pressure from the intermediate pressure receiver 17. Pipes 37, 38 and valve 34 allow the pressure on each side of this piston to be equalized, thus enabling the piston to be pushed to its outer dead centre before starting.
Patent GB-190913-A (GB)
Title: Improvements in or applicable to fire-grates
IPC: F24B1/18
Filed: 1921-12-23
Abstract: 190,913. Hooker, J. J., and Campbell, A. Dec. 23, 1921. Open fire-places; coking-chambers.-An open fire-place is provided with a compartment beneath the grate from which air is excluded, but which is open at the top so that fuel placed in it is carbonized by the heat of the fire above. In the arrangement shown in Fig. 2, the chamber is formed by a drawer C which when in place entirely excludes air from beneath the grate A. The drawer is fitted with an inner casing D having a bottom formed by a wire screen E which separates the ashes from the carbonized fuel before the latter is transferred to the grate. Fig. 4 shows a modification, in which a space F is left between the grate A and drawer C and an air admission regulator G is fitted in the front K of the grate. The drawer C is fitted with a bottom grating or screen H, beneath which is a separate ash-drawer J, so arranged that when both drawers are in place, all air may be excluded from beneath the grate.
Patent GB-358334-A (GB)
Title: Improvements in and relating to vaporizers and superchargers for internal combustion engines
IPC: F02M29/02
Filed: 1930-11-17
Abstract: 358,334. Vaporizers ; charging fans. FABBRO, L. M., 16704, Hillsboro Road, Cleveland, Ohio, U.S.A. Nov.17, 1930, No. 34583. [Classes 7 (ii) and 7 (iii).] Combustible mixture, which enters through a pipe 11, is heated in a vaporizer 2 in which is an engine - driven fan 34 mounted on a rotating shaft 31 carrying aforaminous helical member 35 and baffles 36. The vaporizer heated by exhaust gases passing through a surrounding chamber 3 and the temperature of the mixture is controlled by a thermostat which operates a valve 19 controlling the admission of the exhaust gases to the chamber. Extra air may be added to the mixture through a port 12 by a suction actuated valve. In a modified construction (Fig. 5), the chamber 3 contains water heated by exhaust gases passing through pipes 211. A piston 291 which is actuated by the water controls the opening of a valve which admits the exhaust gases to the pipes 211 ; thus the temperature of the mixture is controlled. A safety vent 341 is uncovered by the piston.