baber/WOPTO huggingface dataset:
Patent GB-158302-A (GB)
Title: Improvements in valve driving mechanism for internal combustion engines
IPC: F01L5/06
Filed: 1919-10-08
Abstract: 158,302. Burt, P. Oct. 8, 1919. Toothed gearing.-In a radial-cylinder internalcombustion engine, in which sleeve-valves are actuated from spiral gears 3, arranged around and driven by a single spiral gear 2 on the crank shaft, the gears 3 are off-set from the axis of the cylinders in order to facilitate removal and adjustment for wear. To take up wear, the flange 9 is machined on the inside so as to reduce the off-set of the gear 3.
Patent GB-1057713-A (GB)
Title: Improvements relating to the prevention of fouling of propellors
IPC: B63H5/16
Filed: 1964-06-12
Abstract: 1,057,713. Preventing fouling of propellers. G. B. POWELL, A. N. HORN, and B. F. ORPWOOD. Sept. 9, 1965 [June 12, 1964], No. 24573/64. Heading B7V. Apparatus to counteract fouling of a motordriven propeller by weed comprises a knife driven by the motor and a fin mounted forward of the propeller to deflect weed away from the propeller, the knife and fin co-operating to cut weed which has become entangled in the path of the propeller. In Figs. 1 and 2 (not shown) horizontal fins 9 have slots 12 in which the knife 12 (secured to the propeller blade 2 in Fig. 1 and to the propeller shaft in Fig. 2) moves. In Fig. 4 (not shown) the knife 12 is mounted parallel to the fin 9 (which is in a vertical plane) and is reciprocated from the motor 18 by a power takeoff from the forward end of the propeller shaft.
Patent GB-969186-A (GB)
Title: A fluorinated pentadiene derivative and polymers thereof
IPC: C07C21/19
Filed: 1963-06-20
Abstract: The invention comprises the compound 3,4, 5,5,5-pentafluoro-1, 3-pentadiene and polymers thereof (see Division C3). The compound may be prepared (a) by reacting ethanol with perfluoropropene in contact with an organic peroxide catalyst to form 3,3,4,5,5,5-hexafluoro-2-pentanol which is treated with phosphorus pentoxide to produce 3,3,4,5,5,5-hexafluoro -1- pentene which is then treated with a base to give the desired product, or (b) by the addition of 1-bromo-1, 1, 2, 3, 3, 3-hexafluoropropane to ethylene in the presence of an organic peroxide to give 1-bromo-3, 3, 4, 5, 5, 5-hexafluoropentane which on dehydrobromination and dehydrofluorination with a base yields the desired product. Examples are given.ALSO:The invention comprises polymers of 3,4,5,5,5- pentafluoro-1, 3-pentadiene. The polymers may be prepared by polymerizing the monomer, for example in the presence of ultra-violet radiation. An example is given.
Patent GB-1303604-A (GB)
IPC: H01R12/72
Filed: 1971-04-19
Abstract: 1303604 Making electrical connectors W HOLZER & CO KG 19 April 1971 [20 March 1970] 24688/71 Heading B3A [Also in Division H2] A method of making a spring contact includes forming two integral contact components 2, 2 from a strip and folding the components along a line 3 so that they are superimposed. A tongue 4 on one of the components is bent over to fix them together, whereupon a cable connecting portion 5 is bent to shape. The components 2 may be made oversize and trimmed after they have been superimposed. The outer longitudinal edges of fingers 6 are in contact and the inner longitudinal edges (9<SP>1</SP>) are separated to eliminate tilting of the contact when in position on a printed circuit board, Fig. 2 (not shown). The cable connecting portion may extend in the same direction as the fingers 6 or it may extend transversely to them.
Patent GB-1118717-A (GB)
Title: Alkylation process
Inventor: STERN HUGH WALTER
IPC: C07C2/86
Filed: 1966-06-03
Abstract: Hydrocarbons are reacted with an alkylating agent in the presence of a homogeneous catalyst comprising a reaction product of an aluminium halide and a divalent transition metal halide at -40 DEG  to +200 DEG C.  The preferred catalyst components are AlCl3 and CoCl2 in a molar ratio of greater than 2:1. Alkylatable hydrocarbons include benzene, cumene, naphthalene or an isoparaffin or cycloparaffin having more than 6 carbon atoms. The alkylating agent may be an olefin (e.g. ethylene, propylene, dodecene, propylene tetramer or hexene dimer) or an alkyl halide (e.g. sec or t butyl chloride).  The alkylation may be effected in the absence or presence of an inert diluent such as cyclohexane or heptane.  The reaction between the catalyst components may be carried out by refluxing suspensions thereof in a solvent such as cyclohexane, benzene or chlorobenzene.
Patent GB-1131909-A (GB)
Title: Improvements in and relating to an apparatus for dividing carcasses cut open ventrally
IPC: A22B5/20
Filed: 1967-05-30
Abstract: 1,131,909. Splitting carcases. SLAGTERIERNES FORSKNINGSINSTITUT. 30 May, 1967 [6 June, 1966], No. 24811/67. Heading A2U. An apparatus for dividing carcases (e.g. pigs' carcases) cut open ventrally, comprises a tool relatively movable in the longitudinal direction of the backbone for the splitting thereof and means for clamping the backbone comprising an internal rail to support the underside of the backbone and two external pressure rails disposed one at each side of the backbone for maintaining the backbone clamped against the internal rail. A carcase which has been cut open ventrally, is conveyed by a rail section on to a rod 5 of intermittently rotating stand 3 where the backbone is supported by internal rail 9. The stand is rotated so that the carcase is opposite external pressure rails 13 and splitting knife 28 which is mounted on a tool holder 18 which is movable up and down, and is spring urged towards the rails 13 such that rollers 17 contact the rails 13. The pressure rails 13 are moved by hydraulic or pneumatic cylinders 15 towards the carcase and clamp the backbone against internal rail 9. The holder 18 then is moved due to its spring loading and the knife 28 is urged into a cutting position. The depth of the cut is controlled by rollers 17 rolling on guide paths 16 provided by rails 13. As the knife 28 is moved along the backbone it performs a circular movement. A member 34 situated above the knife 28 moves behind the knife to open up the cut made by knife 28. The rail 9 comprises a plate portion which, during the operation is wedged in the cut open breast and pubic bone of the carcase, and a U-shaped edge portion which acts as a guide for the knife 28. When the backbone has been split the knife arrangement and pressure rails 13 are retracted, the stand 3 is rotated and the carcase is passed to another rail section.
Patent GB-481486-A (GB)
Title: An improved device for maintaining a door in predetermined position
IPC: E05C17/38
Filed: 1937-09-11
Abstract: 481,486. Stays. HAWKINS, W. F. Sept. 11, 1937, No. 24831. [Class 65 (i)] A device for maintaining a door in predetermined positions comprises an arcuate track member 14 fixed to the frame and an arm 15 pivoted at one end to the member 14 at or near the centre of curvature of the latter, the arm carrying a spring-influenced friction device which is slidable longitudinally thereon and which has a roller 25 engaging one face of the member 14 and a friction pad engaging the opposite face. The friction device comprises a frame 24, sliding in the arm 15, which is hollow, the member 14 passing through the frame; the roller 25 is carried on the frame 24, and a spring is compressed between the opposite end of the frame and a friction pad engaging the inside face of the member 14. The outer face of the member 14 is formed with depressions so that .the compression of the spring is increased when the roller 25 rides out of any depression, thus increasing the frictional resistance to movement and creating a force tending to return the roller to the bottom of the depression. The arm 15 is slidably engaged with a bracket 22 on the door, but may be disengaged therefrom by raising its hinged end 21 ; alternatively the end of the arm may be telescopic and held in extended position by a set screw. One of the depressions in the member 14 is preferably arranged so that the door moves ajar when its fastening is released.
Patent GB-471958-A (GB)
Title: Improvements in garments
IPC: A41D27/28
Filed: 1936-09-11
Abstract: 471,958. Coat &c. sleeves. HARRSEN, H. J. P. H. Sept. 11, 1936, No. 24848. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 12, 1937.] [Class 141] The sleeves of a garment, instead of being sewn to the armholes of the body portion the whole way round, are provided with extensions which hang loose, at least partly, and are interconnected or are connected to the body portion at a position situated at a substantial distance from the armholes. The body portion 1 is gathered in Raglan shape by a shoulder seam 2. The sleeves 3 are extended and are interconnected to form a cape 4, Fig. 2, which is secured to the body portion at the neck opening. The cape and the body portion may also be interconnected along the Raglan seam A, B, and/or at one or more points such as C. A double pleat may be formed centrally on the back, and may be held closed by an elastic 6. In the modification shown in Fig. 4, the sleeves are not interconnected but are separately connected to the neck opening. Each sleeve extension 7 is provided with a pleat 8, the inner edge of which is secured to the body portion at one or more points. An elastic 9 is provided as in the first modification.
Patent GB-406387-A (GB)
Title: Improvements in and relating to electric insulators
IPC: C23C4/08
Filed: 1932-09-06
Abstract: 406,387. Insulators. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektrioitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Sept. 6, 1932, No. 24851. Convention date, Sept. 10, 1931. [Class 36.] In porcelain and like insulators the parts of which are attached to each other or to metal by means of cement, the surface of the cement is protected from weather and oil by spraying with metal. Zinc, which adheres well to cement, may be employed and further protected by a sprayed-on coating of copper, or by varnish.
Patent GB-406063-A (GB)
Title: Improvements in suction devices for collecting broken ends in spinning and like machines
IPC: D01H13/16
Filed: 1932-09-07
Abstract: 406,063. Suction end catchers for spinning and like machines. SWYNGEDAUW, P., 2, Boulevard des Ecoles, Lille, France. Sept. 7, 1932, No. 24936. Convention date, March 24. [Class 120 (ii).] In a suction device for collecting broken ends in mules or twiners or continuous spinning and like machines comprising nozzles each normally closed by means controlled by a thread feeler, the closure of the nozzle b is effected by a preferably flexible plate e adapted to move in its own plane. The plate may be directly operated upon breakage by means of a feeler A, additionally loaded by a weight m if desired, or the feeler may be adapted to release locking-means and so to permit the plate to be operated, as by a spring or weight. The Specification as open to inspection under Sect. 91 comprises also arrangements wherein the closure member is constituted by a curved plate or valve, and wherein the feeler, upon breakage, displaces a lever rigid with the valve into the path of moving mechanism to operate the valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-1465616-A (GB)
Title: Pyridoxamine derivatives
IPC: C07D213/66
Filed: 1974-06-05
Abstract: 1465616 Pyridoxamine derivatives SOS BOTTU 5 June 1974 [12 June 1973] 25008/74 Heading C2C Novel compounds (I) where X is an alkali metal atom or a tertiary amino group, are made by reacting pyridoxamine or its dihydrochloride with CS 2  in the presence of a base. Pharmaceutical preparations useful for protecting the liver contain (I) as active ingredient. Administration is orally, rectally or parenterally.
Patent GB-1516894-A (GB)
Title: Photopolymerisable material for the preparation of stable polymeric images and process for making them by photopolymerisation in a matrix
IPC: G03F7/027
Filed: 1975-06-11
Abstract: 1516894 Photo-sensitive materials CIBA GIEGY AG 11 June 1975 25036/75 Heading G2C [Also in Divisions C2 and C3] A light-sensitive layer on a support comprises (1) an ethylenically unsaturated monomer soluble in water or in a water/alcohol mixture and which contains one or more terminal double bonds and at least one polar atom grouping with one atom having a lone electron pair; (2) a photo-initiation, which forms a photo-redox system with either the monomer (1) and/or with the binder (3)(a), and has a ring system of Formula: in which Z is N or C-R, R being H or a substituent and the compound is optionally quaternised; and (3) as a binder a swellable developer solvent insoluble reaction product of at least one (a) macromolecular binder which is soluble in water or a water/alcohol mixture and which has at least one polar atom grouping with one atom containing a lone electron pair, with (b) a hardener, which is different from the monomer (1); and optionally (4) a chemically inert macromolecular binder which does not react with the binder (3)(a) or hardener (3)(b). Binder (3)(a) is preferably gelatine, chemically modified gelatine, polyvinyl, alcohol, optionally hydrolyzed copolymers of maleic anhydride and olefins or copolymers of methylvinyl ether and maleic anhydride. Binder (4) is preferably polyacrylamide, poly-N- vinylpyrrolidone, or poly-N-vinylcarbazole. Monomers mentioned as (meth)acrylic acids and their salts, optionally substituted (meth)acrylamides, N-vinylpyrrolidone, vinylsulphonic acid and sulphoacrylates. The support e.g. cellulose triacetate may have a subbing gelatine layer and the light-sensitive layer may contain a dye, or be dyed after imagewise exposure and development with water.
Patent GB-796631-A (GB)
Title: Improvements in or relating to filters
IPC: B01D33/00
Filed: 1955-08-31
Abstract: 796,631. Filters for liquids. WALTERS, G. Aug. 14, 1956 [Aug. 31, 1955], No. 25041/55. Class 46. [Also in Group XXVIII] In an inward flow filter, rotary means coaxial and coacting with a part cylindrical wall of the filter housing gathers solids deposited in the lower part of the housing and conveys them to an elevated position where discharge means external to the housing coact with the rotary means to discharge the solids. The filter may be used for separating solids from liquids containing swarf from grinding machines. A filter structure comprises side plates la and cross bars 1b supports a filter medium 2 such as gauze, woven nylon or cotton, or paper &c. which encloses an outlet pipe 3 and is surrounded by a curved housing 5 having an inlet 5c communicating with an inlet pipe 6 and an overflow pipe 7, the housing comprising a wall of part cylindrical shape and extending from a lower sludge collecting region to an opening at the upper part of the housing :.  coaxial with the wall are side plates 8 carrying vanes 8a and rotatable by a motor 10, the vanes lifting sludge to a pivoted discharge shoot 13 down which the solids slide after liquid has been expressed from the sludge by a rubber roller 12 on pivoted arms 12a, a scraper 13c removing any solids adhering to the roller. Apertures 1d in the side plates 1a may be covered with filter medium 2a. Solids adhering to the filter medium are wiped off by scrapers attached to one of the vanes 8a and to the plates 8 for the side screens 2a. The filter structure may be mounted to rotate with the plates 8, jets of air &c. replacing the scrapers to effect cleaning of the filters.
Patent GB-1353667-A (GB)
Title: Hypotensive mono-nitro-reserpine and a process for the production thereof
IPC: A61K/
Filed: 1971-04-19
Abstract: 1353667 Mono-nitro-reserpine S SIDDIQUI and M A KHAN 19 April 1971 [8 Feb 1971] 25042/71 Heading C2C A novel mono nitro reserpine mp. 146‹ C. may be prepared by nitrating reserpine. Pharmaceutical compositions of the mononitroreserpin show hypotensive activity when administered with a carrier.
Patent GB-1042954-A (GB)
Title: Apparatus for measuring the power of spectacle lenses
IPC: G01M11/02
Filed: 1963-06-24
Abstract: 1,042,954. Optical apparatus. R. RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK]. June 24, 1963 [June 22, 1962], No. 25073/63. Heading G2J. To measure the power of a spectacle lens the image of a movable test mark 2 is focussed on a screen by an optical system which includes the test lens 41 and a variable stop 10, 11 coupled to the test mark 2 so that the stop aperture is automatically varied as the test mark 2 is moved. The image is brought into focus by moving the test mark 2 to which is attached a pointer that moves over a scale 6 calibrated in dioptres. The test mark is illuminated by a lamp 1 and a variable resistance, coupled to mark 2 may be provided in the lamp circuit. Alternatively a transformer may be provided with a switch to vary the voltage ratio thereof.
Patent GB-728305-A (GB)
Title: Apparatus for continuous frothing of liquids
Filed: 1952-10-08
Abstract: 728,305. Foam mixing appliances. DUNLOP RUBBER CO., Ltd. Oct. 8, 1952 [Oct. 11, 1951], No. 25170/52. Class 86.  A frothing machine, especially for such liquids as rubber latex, comprises a substantially conical bowl 11, Fig. 3, a rotor 19 having a substantially conical surface located in the bowl and spaced from the inner surface thereof to form a substantially conical passage 32, apertured cylindrical plates 34 coaxial with the axis of the bowl provided on the inner surface of the bowl to extend into the passage and interleave with similar plates 33 provided on the rotor, and means for supplying a gaseous fluid and a liquid to be frothed into the bowl at the apex thereof. Rubber latex and air enter through the inlet pipe 29 and pass upwardly through the passage 32, the foamed product being discharged through a tangentially disposed outlet, Fig. 4 (not shown) in a cover 24 with the aid of a flinging disc 38 attached to the rotor 19. Reagents, such'as a suspension of zinc oxide and sodium silicofluoride gelling agent are introduced through feed openings 35, 36. The rotor 19 is attached to a shaft 43 of an electric motor 18 by means of a screw 44 and exchangeable spacer 41 which permits adjustment of the spacing between the bowl and rotor, the rotor and its driving motor being suspended for vertical displacement so that the rotor may be lifted clear of the bowl to facilitate inspection, cleaning or repair of the apparatus. The apertures in the chamber plates 33, 34 may take the form of serrations 47, Fig. 7, perforations 48, Fig. 8, or slots 50, Fig. 10. Specification 256,605, [Class 86], is referred to.
Patent GB-652136-A (GB)
Title: Improvements in or relating to paints
Inventor: GRISH-SMITH WILLIAM EDWIN LAN
Filed: 1948-09-27
Abstract: A paint contains an organic silicate, a pigment, and a quantity of one or more organic bases having a pH value of 7.8 or above such that hydrolysis of the silicate takes place and a gel is formed when the paint is used for coating and thereby absorbs sufficient water from the atmosphere.  The organic silicate may be ethyl silicate and the organic base may be piperidine, morpholine, triethylamine, cyclohexylamine, monoethanolamine, diethanolamine, or triethanolamine.  The paint may be prepared by mixing the organic base or bases with a similar volume of organic silicate, allowing the mixture to stand and then adding the rest of the organic silicate and the other ingredients.  In examples a paint medium consisting of monoethanolamine and ethyl silicate was made into an anti-corrosive paint by adding zinc dust, white spirit and dibutyl phthalate and into a heat-resistant paint by adding Ilmenite black and white spirit.  Specifications 290,717, [Class 95], 575,752, [Group IV], and 612,622, [Group IV (a)], are referred to.
Patent GB-1263215-A (GB)
Title: Photoflash lamp
Inventor: SHAFFER JOHN WILSON
IPC: F21K5/14
Filed: 1970-05-26
Abstract: 1,263,215. Flash-bulbs. GTE SYLVANIA Inc. May 26, 1970 [May 23, 1969], No.25262/70. Addition to 1,203,859. Heading G2L. In a flash-bulb of the percussively ignitable type having a primer in the form of a protruding metal tube which contains a charge of fulminating material and is adapted to be fired by a lateral blow, the charge is formed as a viscous paste which is introduced into the primer in a wet state and subsequently dried.
Patent GB-428428-A (GB)
Title: Improvements in or relating to rolling sheet-metal discs
IPC: B21H1/02
Filed: 1934-09-03
Abstract: 428,428. Rolling wheel discs. SCHUSTER, H., 2, Industriestrasse, Immigrath, Niederrhein, Germany. Sept. 3, 1934, No. 25328. [Class 83 (iv)] Circular sheet-metal wheel &c. discs are obtained by reducing, in rolls, a small thick disc 1 cut by cutters b from the end of a cylindrical or oval ingot a, the discs being turned through 90‹ after each selected pass or group of passes, so that its shape changes from circular to oval and back again. The roll pass may be adjusted to give a return to the true circular shape if the elongation has not been uniform in each pass.
Patent GB-853387-A (GB)
Title: Improvements in electrostatic clutches
IPC: H02N13/00
Filed: 1957-08-12
Abstract: 853,387. Friction clutches. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 12, 1957 [Aug. 15, 1956], No. 25383/57. Class 80 (2). [Also in Group XXXV] To reduce idle drag and also increase the maximum torque which can be transmitted without slip, an electrostatic clutch comprising a conductor 13 and a semi-conductor 24 has the conductor formed with separate lines or areas of contact engaging the semi-conductor and transversely disposed with reference to the direction of slip between the parts. Two semiconducting rings 24 fast on copper &c. driving hubs 16, 17 are gripped by a spring steel band 13 carried on an arm 12 secured to a driven shaft 11. In one embodiment, lines of holes 38, Fig. 3, cause the steel band 13 to take the shape shown in Fig. 4 when it is wrapped round the semi-conducting rings 24, with parallel areas or lines of contact 41 forming a rippled surface and engaging the rings. The depth of the ripples may be increased by bending the band 13 at each line of holes over a small diameter rod, Fig. 5 (not shown), or a solid band may have ripples formed by machining parallel lines on its engaging surface, Fig. 6 (not shown). Silicone oil is fed through pipes 25, 26 and holes 29, 30 to the friction surfaces. Specifications 843,949 and 843,950 are referred to.