baber/WOPTO huggingface dataset:
Patent GB-936591-A (GB)
Title: A new or improved pipe closure
Inventor: COOPER HARRY CHRISTOPHER
IPC: F16L29/00
Filed: 1959-02-02
Abstract: 936,591. Pipe couplings. A. P. V. CO. Ltd. Feb. 2, 1960 [Feb. 2, 1959], No. 3685/59. Class 99(1). A coupling comprises a pair of end fittings 3, 4 including valve discs 10, 11 carried by operating spindles 12, 13 at an angle to the faces of the discs so that turning of the spindles moves the peripheries of the discs into and out of closing co-operation with the wall of a valve chamber 5 formed in the fittings to close and open a flow passage through the fittings. The two discs are formed so as to fit face to face when the end fittings are coupled to provide a single valve free of liquid holding pockets. As shown, the fitting 3 has mounted thereon a ring 6 formed with cam segments 8 which engage behind lugs 9 on the fitting 4 and have gaps 8a which, in one angular position of the ring, register with lugs 9 to permit the fittings to be separated. The flat-faced disc closures 10, 11 are carried by stub spindles 12, 13 so as to turn about an axis at an angle to the axis of the fittings 3, 4 and are located to one another by dowels 14. Fitted on the spindle 12 is a bevel pinion which meshes with a partial ring of teeth 15 on the ring 6. In the releasing operation of the coupling, rotation of the ring 6 turns the spindle 12 to the valve closed position before the gaps 8a commence to move in register with the lugs 9.
Patent GB-668581-A (GB)
Title: A device for automatically adjusting illumination
IPC: G03B7/085
Filed: 1950-02-14
Abstract: 668,581. Controlling exposure photo-electrically. SOC. FACINE. Feb. 14, 1950 [March 16, 1949], No. 3800/50. Class 40 (iii). [Also in Group XX] In photographic apparatus a photo-cell adjusts the relative position of a pair of polarized screens in the light path to the film. As shown, a photo-cell 4 feeds the coil 5 of a moving coil instrument which drives through gearing 7, 8 a circular screen 1 of polarized material. The other screen 2 is fixedly mounted behind it and the movable screen is mounted on a horizontal axle 10 pivoted in the fixed screen behind and a glass plate 11 in front. To avoid the image of the axle falling on the film the assembly is situated between the optical centre and focal plane of the camera objective. In modifications a single coil may adjust both screens in opposite directions through differential gearing, or a pair of coils both fed from the same cell may each adjust one of the polarizing screens. A galvanometer with two windings, one fed by a separate battery, may be employed.
Patent GB-706839-A (GB)
Title: Means for the end to end connection of bars forming mine roof supports
IPC: E21D17/086
Filed: 1949-01-11
Abstract: 706,839. Mine roof support bars. DOLLERY & PALMER, Ltd., (Soc. d'Etudes et de Recherches Industrielle et Minieres, S.E.R.I.M.). Jan. 11, 1949, No. 3807/53. Divided out of 706,762. Class 20 (2) Bars supporting mine roofs are connected end to end by members 30 which allow the bars to be tilted relatively in a vertical plane, each member 30 being connected to one bar by a ball joint 32. The member 30 has a cross bar 34 at the other end engaging hooks 31 on the adjacent bar. The socket for the ball is formed in two members detachably mounted one on each side of an I-section bar.
Patent GB-565068-A (GB)
Title: Improvements relating to the damping of vibrations in members
IPC: F16F15/10
Filed: 1943-03-09
Abstract: 565,068. Gyroscopic apparatus. ARNOLD, R. N., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. March 9, 1943, No. 3815. Addition to 549,893. Drawings to Specification. [Class 97 (iii)] [Also in Group XXXII] The invention of the parent Specification is modified in that disturbing vibrations of substantially constant frequency are reduced by being caused to produce vibrating precession of a gyroscopic system having a natural frequency about its precessional axis which is substantially the same as that of the disturbing vibrations, the gyroscopic system being substantially undamped as regards vibration about its precessional axis.
Patent GB-104737-A (GB)
Title: Improvements in or relating to Rotary Engines, Pumps, and Meters.
Inventor: FLINT FREDERICK PERCY
IPC: F01C1/44
Filed: 1916-03-16
Abstract: 104,737. Flint, F. P., and Flint, A. V. March 16, 1916. Fixed-abutment type; packing drums and vanes; working-fluid supply.-Relates to rotary engines, pumps, and meters of the kind wherein the rotor carries curved outwardly-sliding vanes having both ends always in contact with the casing. The contour of the casing A has a, curvature at, and over an extent of about thirty degrees on either side of, each end of the major axis of the casing, coinciding with that of a circular arc struck about a centre on the major axis with a radius equal to that of the rotor, the remainder of the casing contour being shaped to give contact with a blade of such circular curvature that it passes through three points, namely a point situated on the major axis midway between the rotor circle and the casing contour, a second point equidistant with the first from the centre of the rotor but situated on the minor axis, and a third point at which it touches a circle described about the centre of the casing with a radius of half the minor radius of the casing. Two chambers A<1>, A<2> connected by a duct A<3> are formed on oppcsite sides of the rotor B, the maximum volume confined during a revolution between two ends of the same vane D being equal to the maximum volume confined between adjacent ends of the two vanes D. As each vane-end passes the spring-pressed packing-piece E, a charge, which may be under pressure, is drawn into the chamber A' through a port F and then compressed and transferred through the duct A<3> to the other side of the rotor, where it is ignited by a sparking-plug at H, exhaust taking place through a port G. For reversing, the packing E is modified, a duplicate sparking-plug is fitted in the chamber A<1>, and the functions of the ports F, G interchanged. The packing E may be made narrower than the full axial width of the chamber, flanges on the rotor filling the gaps. The rotor is made up of three parts B<1>, B<2>, B<2> connected by shouldered studs with screwed ends, the vanes D having slots D<1> to clear the studs. The vanes carry shoes D<2> and packing-pieces D<4>, D<3>, B<5> are fitted as shown. Instead of two vanes, one vane or more than two vanes may be used. The Provisional Specification describes the rotor as formed in two halves bolted together, the plane of division being at right-angles to the shaft, and each half has curved slots, each slot constituting half a guideslot for the vane.
Patent GB-104746-A (GB)
Title: Improvements in and relating to Casings for Vacuum Bottles or the like.
IPC: B65D23/08
Filed: 1916-03-18
Abstract: 104,746. Marks, E. C. R., (Laraders, Frary, & Clark.) March 18, 1916. Addition to 8509/15. Coverings and casings.-In casings for vacuum bottles and other receptacles as described in the parent Specification, the upper part or sleeve e and the cap f are both secured directly to the exterior of the upper end of the main part a of the casing. The main part a is provided with two screw-threaded portions c, d of different diameters, for engagement by the cap and sleeve respectively, to prevent entrance of liquid into the casing and to enable the cap to be removed without disengagement of the sleeve. Reference has been directed by the Comptroller to Specifications 5092/09 and 16586/12, [Class 29, Cooling &c.].
Patent GB-247015-A (GB)
Title: Improvements in and relating to number-printing machines and the like
IPC: B41K3/04
Filed: 1925-02-14
Abstract: 247,015. Buckley, J. H. Feb. 14, 1925. Number - printing apparatus. - A pedaloperated apparatus for printing numbers is constructed with a gun-metal or malleable iron casting B, which slides on a frame formed of two rods C connected to a base A and joined at the top by a rod D. One or more hand number - printing devices M of usual kind are mounted in an arm integral with the casting B. The devices M are formed with screwthreaded handles F, and lock-nuts f secure the devices M in position in such a manner that the printing-surfaces of different devices can be brought to the same level. The tops of the handles F are formed with nicks to receive screwdrivers. The casting B is kept normally raised by springs E secured by hooks to the castings and by screws to the bar D, and a chain b is provided to connect the casting to the operating pedal. Specification 26615/13 is referred to.
Patent GB-1170052-A (GB)
Title: Process for producing articles made of Fibrillated Material
Inventor: GOY RONALD STANSFIELD
IPC: A63B51/02
Filed: 1966-02-01
Abstract: 1,170,052. Felt. DUNLOP CO. Ltd. 18 Jan., 1967 [1 Feb., 1966], No. 4286/66. Heading D1R. A textile felt comprises fibrillar thermoplastic material which is preferably polypropylene. The fibrillar material is obtained from oriented thermoplastic film. In a preferred embodiment a layer of fibrillatable thermoplastic material is assembled with one or more layers of filaments of thermoplastic material in the form of a mat, the mat being then subjected to needling to fibrillate the film. The fibrillatable material preferably comprises a random layer of crimped strands. The filaments of thermoplastic material are preferably parallel continuous filaments. The fibrillatable material may be sandwiched between two layers of the filaments. In a further embodiment a layer of crimped fibres of thermoplastic material e.g. polyamide, is placed in contact with a layer of fibrillatable film and the two layers are needled together.
Patent GB-1577604-A (GB)
Title: Method for refuelling a helicopter or similar aircraft and a device for performing the method
IPC: B64D39/00
Filed: 1978-02-02
Abstract: An additional container (9), which contains fuel for the helicopter, is attached to a container (5) which is suspended on a helicopter (1) and contains the load to be transported, for example a fertiliser. Said fuel can be pumped into the helicopter tank during flight. A second, identical container combination (5, 9) can be filled with the load and with fuel while the helicopter is away and can be picked up by the helicopter, in the hover, on its return, once the empty container combination has been detached. This allows the helicopter to carry with it in the container (9) only the fuel quantity required for one flight. Its own fuel tank carries only a fuel reserve. In consequence, the payload can be increased. <IMAGE>
Patent GB-1424441-A (GB)
Title: Pulsed doppler radar systems
IPC: G01S13/524
Filed: 1973-01-29
Abstract: 1424441 Pulse radar SIEMENS AG 29 Jan 1973 [28 Jan 1972] 4357/73 Heading H4D In a pulsed Doppler radar having a plurality of range channels and in which each channel has a Doppler filter or a common filter is provided for each channel in turn, the or each Doppler filter is digital in operation and in those channels in which moving targets are suspected, echo signals are repeated during times normally used by other channels while the filter characteristics are altered such that the pass band for each repetition forms only a part of the overall Doppler pass-band. Coherently detected signals from a rotating or phased array antenna are converted to digital signals in converter 7. Switch 8 is controlled by sync. generator 4 to open switches S1-SK sequentially during each transmitter repetition period. Echo signals are processed in each channel by Doppler filter 9 and low-threshold device 10. Signals lying in the broad Doppler pass-band and just above noise level are treated as suspect targets and their presence is signalled to control 16. This closes switch 17 in the suspect channel K1 say, which connects store 18 with the Doppler filter and also the store output to its input thereby forming a recycling store. Control 16 further re-activates switch S1 n times such that the next n channels are blocked. Finally the band pass characteristics of digital Doppler filter 9 are changed so that for each of the n cycles of the stored echo signals, the filter has a different pass-band equal to approximately 1/n of the overall Doppler pass-band. The output from low-threshold device 10 is further detected, integrated and subjected to a high level threshold before being passed via switch 14 to indicator 15. In an alternative arrangement the suspect channels are identified by a store 20 and channels not having suspect targets used for the repetition cycle of the echo signals. Further the channels adjacent suspect channels may be excluded to detect movement of the target into those channels. The digital disclosed (Fig. 6, not shown) comprises a recursive filter using two series connected delay lines equal to the transmitter repetition period and variable gain multipliers whose gain values determine the filter characteristics. The delays may be formed by k stage shift registers stepped at a frequency kft, ft being the radar repetition rate. One stage of the registers is connected to the multipliers whose values are set for each channel as the information is stepped through. The receiver output is fed serially to the registers which do not thus need to be repeated for each channel.
Patent GB-455837-A (GB)
Title: Improvements relating to power operated presses
IPC: B30B1/34
Filed: 1936-02-13
Abstract: 455,837. Veneer-presses. MASCHINENBAU LEYA AKT.-GES., Muttenz, Basle, Switzerland. Feb. 13, 1936, No. 4361. Convention date, Feb. 14, 1935. [Class 140] [See also Group XXIX] A veneer glueing-press comprises more than four press cylinders and pistons 11 which are operated in such a manner that pressure is applied from the centre outwardly. The work is inserted between press plates 23 suspended by lazytongs from the press head 15 which is supported by nuts 16 on threaded spindles 13, 14 and is rapidly closed by worm gearing 17 operated by an electric motor.
Patent GB-843825-A (GB)
Title: Polymers
IPC: C08G4/00
Filed: 1957-02-08
Abstract: A polymer containing ester linkages, useful for casting, coating, impregnating, moulding or potting, is made by reacting a diallylidene pentaerythrital with a polycarboxylic acid.  The diallylidene pentalrythrital is the condensation product of pentaerythritol with acrolein or an acetalforming substitution product thereof (e.g. methacrolein, crotonaldehyde or chlorallylidene diacetate).  The polycarboxylic acid may be oxalic, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, tartaric, malic, chlorosuccinic, methylene disalicylic, tricarballylic, aconitric, citric, phthalic, isophthalic, terephthalic, diphenic, pyromellitic, mellitic, maleic, fumaric, citraconic, mesaconic or glutaric acid. The reaction mixture may also contain a monocarboxylic acid to act as a chain-stopper (e.g. acetic, propionic, butyric, valeric, stearic or benzoic acid).  Catalysts for the reaction are phosphoric, oxalic, p-toluene sulphonic m-benzene disulphonic, camphor sulphonic,2-chlorcymol -5-sulphonic, methane sulphonic, and ethane sulphonic acids; also aluminium trichloride, boron trifluoride and stannic chloride.  Reaction is effected at 50 DEG -150 DEG C, if desired in the presence of a solvent (e.g. dioxane, dimethyl sulphoxide, ethyl acetate, chloroform or acetone).  The polymers prepared from unsaturated polycarboxylic acids may be copolymerized with an ethylenically unsaturated monomer (e.g. styrene, divinyl benzene, diallyl phthalate, diallyl maleate or methyl methacrylate) in the presence of a free-radical catalyst (e.g. benzoyl peroxide, azobisisobutyronitrile, azoisovaleronitrile or lauroyl peroxide). In examples (1)-(4) Polymers are obtained by reacting diallylidene pentaerythritol with adipic acid, sebacic acid, glutaric acid or pimelic acid; (5)-(6) A polymer obtained by reacting diallylidene pentaerythritol with maleic acid is either poured into a mould and heathardened or copolymerized with styrene in the presence of benzoyl peroxide.
Patent GB-295191-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03G11/00
Filed: 1928-02-11
Abstract: 295,191. Christensen, F. A. M. Feb. 11,1928. Thermionic amplifiers.- The degree of amplification is automatically limited by providing one or more controlling valves adapted to respond only to such portions of the applied potential variations as exceed a predetermined amplitude. The anode-current variations are added algebraically to the anode current of an amplifying valve, to which is applied the same potential variations but in opposite phase. The Figure shows amplifying valves 11, 13 and controlling valves 19, 20 so biased by potentiometers 30, 31 that one responds only to positive and the other to negative applied potentials above the predetermined value. The anode circuits of valves 11, 19, 20 are connected in parallel to the transformer 12 while the input through the centre-tapped transformer 10 to the valve 11 is in opposite phase to that of valves 19, 20.
Patent GB-728411-A (GB)
Title: An improved mould and a method of manufacture thereof
IPC: B22D7/06
Filed: 1953-02-17
Abstract: 728,411. Ingot moulds. GUSSSTAHLWERK BOCHUMER VEREIN AKT.-GES. Feb. 17, 1953 [Feb. 29, 1952], No. 4424/53. Class 83(1). An ingot mould comprises an inner wall formed by a liner of thin metal sheet or tube surrounded by a layer of freely flowing granular material such as sand which fills the space between the liner and a cooling coil which may be electrically energized, the coil being in the form of a conical helix. The mould comprises a base-plate 1 and a thin metal liner 2. Sand or other granular material surrounds the liner and fills the space between the latter and cooling coils 4. An outer wall 5 encloses the parts of the mould and spacers 10, which may be electrical insulants, are provided between the coil turns. The cooling coil and liner may have the same conicity, or, that of the coil may be less than the taper of the liner so that the sand &c. has a depth which increases towards the top of the mould. Two independent cooling coils, which may carry compressed air or water or a mixture thereof, are provided and the coils may be energized to induce a current in the melt to bring about a slight movement therein and thus help in the crystallization of the ingot.
Patent GB-594590-A (GB)
Title: Improvements relating to electric welding apparatus
IPC: B23K11/31
Filed: 1945-02-22
Abstract: 594,590. Welding. COSSOR, Ltd., A. C., BROSCOMB, D. G., and BROOKER, M. W. Feb. 22, 1945, No. 4445. [Class 83 (iv)] In a resistance spot-welding machine an upper electrode is moved towards a lower electrode, to apply pressure to the work between, by means of a pedal through a lever pivoted about a fulcrum which is displaceable at a predetermined electrode pressure to cause the feed of the welding current to the electrodes. The upper electrode 50 is secured to a hollow bolt 26 which is attached by leaf springe 22, having washers 51, 23 interposed, to the reduced end 24 of a vertical hollow shaft 27. The shaft is mounted in insulated bushes 15, 60 of a support 42 which has a bracket 41 carrying a clamping ring 12 for the lower electrode, and a base 43 formed integral and secured to a bench 35. A foot pedal is connected to the end 5a of a cranked lever 5 to move it against a spring 26 and actuate a lever 3, pivoted on pin 17 in a block 9, through toggle links 4 to bring an insulated roller 16 to bear on a platform 6 secured to shaft 27. The shaft is moved down against the action of a spring 58, inside it, until the electrode 50 touches the work, when further movement causes flexing of springs 22 and increased resistance until the pressure of fulcrum 17 reaches a limit and levers 3 begin to rock on roller 16 as a fulcrum, causing block 9 to rise and switch 64 to operate and supply welding current. An electrical timing system is used to interrupt the circuit after a predetermined interval: The influence of fulcrum 17 can be varied by means of a spring 62 which tends to force block 9 downwards and is mounted in a hollow shaft 11 with adjustment by means of a cap 10 screwed on a pillar 2 bolted to the bench.
Patent GB-139873-A (GB)
Title: Improvements in weather screens or hoods for motor cars
IPC: B60J7/16
Filed: 1919-02-22
Abstract: 139,873. Anderson, R. W. Feb. 22, 1919. Hoods, opening tops, and weather screens. - A hood or weather screen for motor-cars comprises two or more sections circular in plan, each adapted to slide in an horizontal circular track so as to form a complete or partial enclosure. As shown, the hood comprises two spheroidal glazed sections 1, 2, each having on its lower edge a frame member 4 adapted to embrace and slide upon an horizontal circular track member 5. Balls 3 distanced by members 8 are interposed between the members 4, 5, and a retaining-member 6 fixed to the member 5 engages faces 7 on the member 4. The members 1, 2 can thus be rotated to any position on their respective guides, and may be caused to overlap each other to any extent. The sections may be of spherical shape, or cylindrical with flat tops. According to the Provisional Specification, the ball races may be arranged to engage the upper and lower faces of a flange on the screens, and the frames of the screens may be other than circular.
Patent GB-777454-A (GB)
Title: Improvements relating to worm conveyors
IPC: B65G65/46
Filed: 1954-02-16
Abstract: 777,454. Screw conveyers. PORTEUS, W. Feb. 22, 1955 [Feb. 16, 1954], No. 4471/54. Class 78 (1). Means for discharging materials from hoppers comprises twin worms 6 mounted in troughs 3 in the base of the hopper and rotated in opposite directions, each worm having two portions of opposite hand arranged to feed the material to a centrally located discharge opening 8 spanned by the worms. Partition walls 9 direct the material towards the ends of the worms.
Patent GB-397124-A (GB)
Title: Improvements in the manufacture of aromatic aldehydes
IPC: C07C45/00
Filed: 1932-02-15
Abstract: Aromatic aldehydes are manufactured by treating an aromatic hydrocarbon or an ether of a mono- or polyhydric phenol, preferably at 60 DEG  C. or above, with hydrogen cyanide (or a metal cyanide), hydrogen chloride and an amount of aluminium chloride in excess of one molecule to every two CN groups in the hydrogen cyanide or metal cyanide, and treating the aldimine so obtained with acid.  The process may be carried out by mixing the cold dry aromatic hydrocarbon or phenolic ether with dry aluminium chloride, adding hydrogen cyanide or a suitable metal cyanide, e.g. zinc cyanide, heating, passing dry hydrogen chloride and finally adding cold water and excess of hydrochloric acid. Examples describe the preparation, by the action of aluminium chloride, hydrogen cyanide and hydrogen chloride, of: (1) benzaldehyde from benzene; (2) p-tolualdehyde from toluene; (3) 2 : 4-dimethylbenzaldehyde from m-xylene.  Other starting materials specified are: mesitylene, anisole, phenetole, diphenyl ether, dialkyl ethers of pyrocatechol, resorcinol or hydroquinone, di- and trialkyl ethers of pyrogallol or phloroglucinol. Specification 19204/97, [Class 2, Acids and salts, Organic &c.], is referred to.
Patent GB-230972-A (GB)
Title: Improvements in or relating to cutlery and like cases
IPC: B21D53/60
Filed: 1924-02-22
Abstract: 230,972. Bottomley, F. B. Feb. 22, 1924. Fittings, internal. - In fittings for cutlery cases &c. in which a lining F is pressed into slots B in a block A to form recesses G for the articles, the recesses are simultaneously formed by pressing the material F through the slots B by a tool C provided with a series of formers D corresponding in shape and number to the recesses required. The formers may be detachably fixed to the tool, the surface of which extends beyond the formers and corresponds in shape and size to the block A. A space is provided at the back of the tool for a burner or other heating-means and the depth of the recesses G may be varied by fixing detachable slotted plates to the tool over the formers D.