baber/WOPTO huggingface dataset:
Patent GB-722620-A (GB)
Title: Improvements in or relating to containers moulded from thermoplastic material
Inventor: JOHNSON ROBERT IAN
IPC: B29C57/10
Filed: 1953-05-06
Abstract: 722,620. Collapsible tubes. METAL BOX CO., Ltd. May 6, 1953 [May 8, 1952], No. 11715/52. Class 66. [Also in Group V] A method of moulding a collapsible tube from thermoplastic resin, e.g. polythene (see Group V) results in a tube in which the neck portion 7 is thicker than the wall of the body of the tube 1. A screw thread to receive a closure cap may be moulded on the end.
Patent GB-209356-A (GB)
Title: Improvements in hot plates
IPC: F24C15/10
Filed: 1923-05-01
Abstract: 209,356. Flavel, P. W. May 1, 1923. Hot-plates. - A gas-stove hot-plate comprises parallel bars 1, 2, arranged one on each side of the burner 3 and each engaging in recesses in the hot-plate frame 6, and shorter intermediate bars 5 which are supported at their outer ends in recesses in the frame 6 and at their inner ends by curved cross-pieces 4 resting in recesses in the bars 1, 2. The cross-pieces 4, which are located below the bars 1, 2, may be in the form of a ring supported in a similar manner. In the modification shown in Fig. 4 the short bars 5 are supported by a ring 7 having projections 9 and slotted extensions 10, the bans 5, which pass through the slots as shown, being recessed at 12 to receive the tops of the extensions 10.
Patent GB-528048-A (GB)
Title: Improvements in paper-sizing media and processes for their production
IPC: D21H17/62
Filed: 1939-04-19
Abstract: 528,048. Sizes. WIEGER, [nee MARSCHALLECK], M., and GRASSHOF, H. April 19, 1939, No. 11838. Convention date, Feb. 20, 1939. [Class 121] A paper sizing composition consists of an aqueous dispersion of electro-osmotically treated kaolin, a binding agent such as resin, wax &c. and a protective colloid, in particular an alkalized glue, casein &c. The kaolin which has particles of diameter less than 1 Á, is prepared by passing a direct current through a dispersion of elutriated kaolin in an alkaline aqueous medium.
Patent GB-1476622-A (GB)
Title: Frames for doors or windows
IPC: E06B1/18
Filed: 1974-06-10
Abstract: 1476622 Ventilators E & E KAYE Ltd and D B PLUM 10 June 1974 [13 March 1973] 11882/73 Heading F4V [Also in Division E1] A top frame member of a window comprises two members 35, 36 spaced by a block 37 and having a ventilation gauze 39 and pivotable flap 41.
Patent GB-455555-A (GB)
Title: Improvements in and relating to cathode ray tube circuit arrangements for television and like purposes
IPC: H04N5/228
Filed: 1935-04-17
Abstract: 455,555. Television. KEYSTON, J. E., Holly Cottage, Wood End Green, Hayes, and BROADWAY, L. F., Strathmore, Park Way, Hillingdon, both in Middlesex. April 17, 1935, No. 11904. [Classes 39 (i) and 40 (iii)] At a transmitter, the cathode-ray beam is modulated by two electrodes 4, 6 which are fed with potentials of different character. One electrode may modulate the beam with carrier frequency potentials and the other electrode may modulate the beam with synchronizing potentials. Alternatively, a potential corresponding to the average brightness of the picture may be utilized in place of, or together with, the synchronizing signals. According to the Provisional Specification, the cathode ray beam at the receiver may be modulated twice over by the received signals to increase the contrast.
Patent GB-1472237-A (GB)
Title: Multiple flashbulb unit
IPC: G03B15/04
Filed: 1975-03-21
Abstract: 1472237 Flash-bulb units PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 March 1975 [25 March 1974] 11908/75 Heading G2X To enable a multiple flash-bulb unit to be inserted in a conventional rotatable flash-cube socket 6 on a camera the unit carries a rigidly fixed coupling member 3 which engages the socket 6; the unit carries projections 13 which engage the camera body and prevent the unit rotating, due to the frictional force between the member 3 and socket 6, when the latter is rotated e.g. by the film transport. The member 3 is a hollow cylinder carrying a flange 5 which engages the lips 12 on resilient fingers 10 in the socket 6.
Patent GB-179533-A (GB)
Title: Improvements in or relating to jaw-brakes
IPC: F16D65/48
Filed: 1922-04-28
Abstract: 179,533. Buisson, E. May 4, 1921, [Convention date]. Compensating for wear.- Brake segments 1, 2 adapted to be engaged with a drum by means of a cam 4 are each adjustable for wear by a pin 10 screwing into the end of the segment and having an eccentric part 9 which bears against one end of a rod 5 slidably mounted in the part 13 of the segment and bearing at its other end upon the pivot 3. The clearance between the segments and the drum can thus be varied by turning the pin 10.
Patent GB-148656-A (GB)
Title: Improvements in oil pumps for use on fluid pressure engines
IPC: F16N13/20
Filed: 1919-05-13
Abstract: 148,656. Bentley Motors, Ltd., and Burgess, F. T. May 13, 1919. Movable-abutment type; packing drums; plant. -To prevent leakage in a tandem rotary oil pump for an internal-combustion engine, the scavenging- pump A is located below the oil-pressure pump B and is separated by a division plate E. The spindle C of the pump B is provided at the junction of the spindle and the gear-wheel A<2> with a curved or conical face D which is kept in engagement, by a spring G, with a corresponding seating on the plate E.
Patent GB-344697-A (GB)
Title: Improvements in or relating to tractor wheels
IPC: B60B15/12
Filed: 1930-04-16
Abstract: 344,697. Vehicle wheels. KELLER, A., 12, Kellerweg, Albisrieden, and PLœSS, A., 57, Pfingswaidstrasse, both in Zurich Switzerland. April 16, 1930, No. 12000. [Class 144 (i).] A tractor wheel with road grippers 5 shiftable radially by a central cam disc 12 bearing against spring-loaded holding members 6, is characterized in that the cam disc is provided with cams 13 having notches 15 at their highest parts for the reception of the ends of their holding members 6, when the grippers are shifted into their outermost position. The members 6 are of rod-like form mounted in bearings on the spokes of the tractor wheel. Springs 9 are attached at one end to the gripper and at the other to the fixed bearings on the tractor spokes. The central cam disc has holes 16 for the reception of an implement for rotating the cam.
Patent GB-592486-A (GB)
Title: Process for the polymerization and interpolymerization of ethylene
IPC: C08F10/00
Filed: 1943-07-23
Abstract: In making solid and semi-solid polymers and interpolymers of ethylene by subjecting ethylene alone or mixed with substances having ethylenic unsaturation to elevated pressure and temperature in the presence of oxygen or a substance yielding it, the process is carried out in the presence of benzene or chlorbenzene and preferably also an aqueous medium.  Unsaturated compounds specified are propylene, butylene; 1,2-dichloroethylene; 2-chloroprene-1; tetrafluoroethylene; methyl and propyl vinyl ethers; methyl and ethyl vinyl ketones; vinyl chloroacetate; vinyl chloride, acetate and propionate; N-vinyl phthalimide; styrene, stilbene; acrylic and methacrylic amides and nitriles, methylene diacrylate and dimethacrylate, ethyl, propyl, butyl and amyl acrylate and methacrylates, methyl a -chloracrylates; methyl crotonate and diethyl itaconate; butadiene, isoprene, chloro-2-butadiene-1,3; limonene and camphene.  Oxygen-yielding substances specified are persuccinic acid, lauroyl, butyryl, acetyl, urea, tetrahydronaphthalene and acetyl benzoyl peroxides, peracetic acid and alkali metal persulphates, perborates and percarbonates. The process may be operated batchwise or continuously in a tubular reaction vessel with recycling of unreacted materials.  The reaction vessel is made of or lined with silver, aluminium, tin, glass or stainless steel.  Specifications 471,590, 497,643 and 562,092 are referred to.
Patent GB-769279-A (GB)
Title: Process for the isolation of pyridine carboxylic acids
Filed: 1955-04-26
Abstract: Pyridine carboxylic acids are isolated from their acid addition salts by reacting said salts in aqueous solution with an organic base which does not contain any carboxyl groups, has a stronger basic character than the pyridine carboxylic acid to be isolated and does not have a solvent action on the pyridine carboxylic acid.  The process may be applied to salts of nitric, sulphuric, nitrosulphuric and phosphoric acids with monobasic, dibasic and tribasic pyridine carboxylic acids and alkyl substituted derivatives thereof.  Specified pyridine carboxylic acids are picolinic, nicotinic, isonicotinic, quinolinic, isocinchomeronic, 6-methyl-3-pyridine carboxylic and 2 : 6-dimethyl-4-pyridine carboxylic acids.  These carboxylic acids are preferably obtained by nitric, sulphuric or nitrosulphuric acid oxidation of 2-methyl-5-ethylpyridine, quinoline, nicotine and 4-alkylpyridines.  The amount of organic base added is preferably 1 to 1.05 times the equivalent of salt-forming acid present.  The organic base may be a compound containing the pyridine nucleus with or without alkyl or alkenyl substituents (e.g. quinoline, 4-methylpyridine, 2 - methyl - 5 - ethyl - pyridine); pyrimidine; aniline; or an alkylamine.  The base is preferably that employed as a starting product for the preparation of the corresponding pyridine carboxylic acid addition salt.  The examples describe the isolation of nicotinic and isonicotinic acids from their nitric acid addition salts.
Patent GB-351632-A (GB)
Title: Improvements in or relating to scissors
IPC: B26B13/08
Filed: 1930-04-16
Abstract: 351,632. Scissors. VEIT, H., 14, Marktstõtte, Constance, Baden, Germany. April 16, 1930, No. 12081. Convention date. Aug. 26, 1929. [Class 30.] Scissors have opposed castellated teeth 2, 3 on both jaws, those on one jaw being notched as shown at 5. The cutting edges are bevelled as usual. The scissors are specially adapted for thinning hair, only those hairs caught between opposed teeth being cut.
Patent GB-349248-A (GB)
Title: Improvements in pistons
IPC: F16J9/20
Filed: 1930-04-17
Abstract: 349,248. Pistons. GRANGEON, G., Cours du Bertheuil, Valreas, Vaucluse, France. April 17, 1930, No. 12194. Convention date, June 6, 1929. [Class 122 (i).] A piston is provided with one or more scraper-rings, each comprising an upper ring 4 of rectangular cross section and a lower ring 5 having its upper edge bevelled. The lower edge 6 of the containing groove may be bevelled, passages 7 leading from the bevelled surface to the interior of the piston. Oil-scraping grooves may be provided below the scraper-rings, each groove having a radial side 2 and an inclined side 3. Passages may lead from the grooves to the interior of the piston.
Patent GB-707943-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1952-05-14
Abstract: 707,943. Optical objectives. COOK, G. H., and TAYLOR, TAYLOR & HOBSON, Ltd. May 1, 1953 [May 14, 1952], No. 12225/52. Class 97(1) In an objective for photographic or other purposes, connected (at least for a substantial portion of the visible spectrum) for spherical and chromatic aberrations, coma, astigmatism field curvature and distortion, and comprising six components of which the first, second, fifth and sixth are convergent and the third and fourth divergent and biconcave, the second and fifth components are compound meniscus components having their air-exposed surfaces concave inwards and each consist of an inner divergent element cemented to an,outer convergent element whose mean refractive index exceeds that of the associated divergent element by more than 0.05. Numerical data are given for one example of the objective shown corrected for a spectrum range including the red end of the visible spectrum and a portion of the infra-red range, the best performance being obtained at 768Á. Specification 556,402 is referred to.
Patent GB-149745-A (GB)
Title: Improvements in flexible material for aeroplanes
IPC: D06M11/83
Filed: 1919-05-15
Abstract: 149,745. Feary, N. A. T. N. May 15, 1919. Aerostats; planes, construction of.-Non-conducting flexible fabric for planes and aircraft envelopes is provided with an electrically-deposited metallic coating for the purpose of fireproofing and strengthening it. The fabrics described in Specifications 128,690 and 134,611, [Class 140, Waterproof &c. fabrics], are given this treatment, and are first saturated in boiled linseed oil under pressure. When dried to a tacky condition, the surfaces are coated with plumbago and then passed in contact with conductors such as metal rollers through a copper-sulphate solution, the fabric constituting the cathode. The speed through the solution is such as to ensure a deposit of one-thousandth of an inch in thickness. The fabric is finally washed in hot water and dried.
Patent GB-310013-A (GB)
Title: Improvements in or relating to auxiliary engines for locomotives
IPC: B61C15/02
Filed: 1929-04-19
Abstract: 310,013. Skoda Works, Plzen. April 19, 1928, [Convention date]. Railway locomotives, steam.-The cylinders 1 and crank-shaft 4 of an auxiliary or booster engine are mounted on the spring-supported frame of a locomotive and the crank-shaft drives the axle 9 through a ball joint, gearing 6, 7, and a clutch 8. The ball joint may be situated, as shown, between the crank-shaft and the pinion 6, or it may be between the gear-wheel 7 and the axle.
Patent GB-556393-A (GB)
Title: Improvements in chemical closets
IPC: A47K11/03
Filed: 1941-12-23
Abstract: 556,393. Closet ; tanks. AUSTRAL SANITARY PRODUCTS, Ltd., and SMITH, L. A. V. Dec. 23, 1941, No. 12329. [Class 26] [Also in Group XXIX] In a chemical closet of the kind in which the main body is constituted by a tank serving as a reservoir for caustic or like solvent liquid and upon which a person is intended to sit, the front wall 5 of the tank slopes rearwardly downward so as to provide heel space for the person seated on the closet. The rear wall 4, the front wall 5 and the interconnecting bottom part are formed from a single sheet of metal, the open ends of such a trough being closed by walls 6, 7, the lateral edges 8 of such walls being bent outwardly at right angles at 8 and the lower edges at 9. The top of the tank is strengthened by a strip 10. The excreta-receiving surface in the form of a drum 13, Fig. 2, is mounted on an axis 12 carried by triangular strips 11 secured to the strip 10 and provided with an eccentric pivot 14 from which extends a lever 15 terminating in a handle 17, so that by manipulation of the lever the drum can be rotated for cleansing purposes. The tank may be provided with a separate base portion comprising a frame 23 supported on feet 24 and also with the usual lid 16 having a seatopening 18 and a drain plug 19 removable by a handle 20 on a rod 21.
Patent GB-253873-A (GB)
Title: Improvements in kinematographs with continuous feed of the film
IPC: G03B41/04
Filed: 1926-05-13
Abstract: 253,873. Continsouza, V., and Combes, M. B. June 17, 1935, [Convention date]. Kinematograph apparatus. - The dimension in the direction of feed of the gate aperture in a continuous-feed apparatus is variable, so that the aperture may be adjusted in accordance with the pitch of the film images. As shown, a plate 3 is slidable in grooves to vary the aperture 2, and is operated by a lever 5 pivoted at 6 and engaging a lug 4 on the plate 3. The lever 5 may simultaneously adjust the optical system in accordance with the pitch of the :film. Both edges of the aperture may be movable.
Patent GB-1130137-A (GB)
Title: Improvements in marine drilling and blasting operations
Inventor: ABRAHAMS JOSEPH LEONARD
IPC: E21B29/12
Filed: 1967-03-16
Abstract: 1,130,137. Blasting. ROCK FALL CO. Ltd. 16 March, 1967, No. 12486/67. Heading E1F. A method of blasting underwater rock formations involves drilling a hole into the rock, passing an explosive charge 5 down into the hole through a casing 1 keyed into the rock about the hole and extending to above the surface of the water above the rock, dropping a fuse 10 connected to the charge 5 down the casing, sliding a hook assembly 8 down over the casing, raising the casing, and retrieving the fuse by the hook assembly.
Patent GB-1440408-A (GB)
Title: Collating means
IPC: B65G47/10
Filed: 1974-03-21
Abstract: 1440408 Transferring between conveyers IDC Ltd 11 March 1975 [21 March 1974] 12615/74 Heading B8A Articles discharged from a sorting conveyer 31 into a preselected shoot 32 are transferred to a platform 35 carried by a trolley running on rails 40 and the platform 35 is raised to enable the trolley to travel to a preselected one of a plurality of discharge conveyers running transverse to the sorting conveyer, the platform then being lowered for transfer of the articles to the sorting conveyer. The articles are loaded to and from the platform 35 by flights 37 of an endless conveyer 36. The sorting conveyer is one of a plurality receiving articles from a store.
Patent GB-553365-A (GB)
Title: Improvements in and relating to mercury electric switches
IPC: H01H29/04
Filed: 1942-09-09
Abstract: 553,365. Mercury switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 9, 1942, No. 12693. Convention date, Sept. 13, 1941. Drawings to Specification. [Class 38 (v)] The envelope of a mercury switch contains a mixture of air or oxygen under atmospheric pressure to which hydrogen has been added, preferably under a pressure of several pounds per square inch. This is stated to result in a layer of oxide on the mercury and the contacts which tend to reduce arcing.
Patent GB-1055724-A (GB)
Title: Semiconductor devices and method of making them
IPC: H01L29/00
Filed: 1964-03-25
Abstract: 1,055,724. Semi-conductor devices. RADIO CORPORATION OF AMERICA. March 25, 1964 [April 2, 1963], No. 12712/64. Heading H1K. In a process for diffusing conductivity modifiers into a semi-conductor through apertures in a silicon oxide mask, the mask is removed after the diffusion and the wafer surface then subjected to a cleaning process in which contaminants such as metal ions are removed by a solvent such as hydrogen peroxide. A new oxide mask may be formed, after the cleaning and before depositing metallic electrodes, and left to protect the PN junctions of the completed device. Fig. 9 is a block diagram of the process as used to form a silicon transistor (Fig. 8, not shown). To form a diode, the second diffusion would be omitted. HBr or HNO 3  may replace the HCl in the seventh stage of the process illustrated; and the silicon semi-conductor may be replaced by germanium or a Si-Ge alloy-in which case the silicon oxide coatings would need to be formed by deposition and not by direct oxidation of the semi-conductor, as is preferred when the latter is silicon.
Patent GB-755771-A (GB)
Title: Vehicle window regulators
Inventor: SMITH LEONARD LESLIE
IPC: E05F11/44
Filed: 1954-05-03
Abstract: 755,771. Vehicle window regulators. WILMOT-BREEDEN, Ltd. April 28, 1955 [May 3, 1954], No. 12752/54. Class 20(3). A vehicle window regulator comprises two crossed window-supporting arms 70 which are secured, one at each side of a base plate 6, to a pair of interengaging toothed segments 8 pivotally mounted on spindles 7 on the base plate 6, and a coiled spring 14 which is anchored at its outer end at 13 to the plate 6 and at its inner end to a spindle 15 on an arm 16 which is joined at its outer end, by a link 17, to an extension 10a of one of the arms 10. The connection between the arm 16 and the link 17 incorporates a spring washer 18 the frictional resistance of which can be adjusted by a nut 19 and an associated lock nut. A guard plate 9 is secured to the plate 6 over the engaged teeth of the segments 8. When the window is opened by hand the arms 10 receive equal angular movements in opposite directions against the action of the spring 14. On raising the window the arms 10 are moved by the spring 14. In a modification the spring 14 is provided with means for adjusting its tension.
Patent GB-1099805-A (GB)
Title: Improvements in or relating to yarn guides for winding machines
Inventor: TAYLOR JAMES DOVE WILFORD
IPC: B65H54/36
Filed: 1964-03-26
Abstract: 1,099,805. Traversing guides. WILLIAM AYRTON & CO. Ltd. March 22, 1965 [March 26, 1964], No. 12798/64. Heading D1J. A traversing guide 10a is maintained spaced from yarn package 13, which is being wound, but adjacent thereto by power-actuated means, which are intermittently operated, to move the guide away from the package, by a sensitive feeler member - e.g. roller 16 - which is lightly and yieldably urged against the package. Roller 16 is mounted on lever 14 pivotally mounted on cam box 11 containing the reciprocating mechanism for guide 10a. When lever 14 pivots micro-switch 15 is actuated to start electric motor 18 which rotates feed screw 19 to cause lever 20 and box 11 to pivot on shaft 12.
Patent GB-772608-A (GB)
Title: Improvements in and relating to powder spray devices
Inventor: WEBB ROBERT JOSEPH
IPC: B41F23/06
Filed: 1954-05-03
Abstract: 772,608. Printing. AEROSTYLE, Ltd. July 22, 1955 [May 3, 1954; Aug. 18, 1954; April 5, 1955], Nos. 12837/54, 24106/54 and 9996/55. Class 100(2) [Also in Group XVIII] Set-off, preventing. In a powder spray device a powder extractor is aranged alternately to extract a powder charge from a powder container and to expose the charge to the interior of a mixing chamber in which it is entrained by and disseminated in a jet of air, and passes therewith through a discharge opening. The admission of compressed air to a bore 10, Fig. 1, may be synchronized with the sheet delivery mechanism of a printing machine. When the air builds up a certain pressure it raises a disc 25 of a pilot valve 9 and so passes to bores 11, 14, 20 whence it produces a jet out of a nozzle 13 in a powdermixing chamber 12, passes through a tube 14a to a space 16 so as to raise a diaphragm 3 and jolt the powder in a container 1, and raises a piston 18. The container is preferably transparent. The piston carries a needle 19, at the end of which is a powder extractor having a bore 24. The extractor takes up a charge of powder of a given fixed volume and raises it when the piston is raised so as to bring it in front of the nozzle 13, when the air jet therefrom disseminates the powder and carries it through a discharge opening 29 to apply to a printed sheet. The extractor is interchangeable according to the volume of powder required and its fineness for others of different size or shape, thus extractors may be screw-threaded or annularly grooved, or have a vertical depression communicating with the transverse bore. The piston descends for the next operation by gravity. In another form, the needle moves upwards into the container, and the chamber 12, valve 9, and piston 18 are below the container, the piston being raised by a spring, and lowered by the air. In another form, Fig. 3, six extractors are carried on a hub 34, which by means of a piston 39 and a rod 41 having a forked end 43 engaging studs 44, is rotated in steps of a little less than 60 degrees, the full 60 degrees being completed by a blade spring 46 engaging two of the studs. The uppermost extractor is located in front of the air nozzle. In another form, Fig. 5, the extractor 19 is stationary, and the diaphragm 3 is alternately lowered by a spring 67 and raised by air from the nozzle 13 so that the bore 24 is brought into communication with the container 1 and the mixing chamber 12a respectively. In another form, Fig. 6, the diaphragm 3 is loaded downwards by a spring 83 and vibrates when air is introduced through tubes 14a and ducts 79. A tube 70 rests on the diaphragm by means of springs 73, and as the diaphragm vibrates, powder enters the tube from the bottom and rises to a higher level than outside the tube, even overflowing when the powder outside the tube is as shallow as 1/16 inch. The extractors may be operated by mechanical linkage or electromagnetically under control of the press.