baber/WOPTO huggingface dataset:
Patent GB-1443074-A (GB)
Title: Olefin polymerisation process
IPC: C08F2/16
Filed: 1974-01-14
Abstract: 1443074 Polymerization of olefins IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Jan 1975 [14 Jan 1974] 01615/74 Heading C3P Olefins are dispersion homo- or copolymerized using a catalyst, in a non-polar liquid hydrocarbon medium and in the presence of a surfactant containing one or more terminal aliphatic perfluorocarbon groups containing at least three carbon atoms. Suitable hydrocarbon media are pentane, hexane, heptane, octane, cyclohexane, benzene and toluene. The surfactant may be selected from those whose general formulµ are: in which R is H or alkyl; Rf is C n F 2n+1  or C n F 2n-1  where n is 6, 8, 10 or 12; x is an integer of 1-100 and m is an integer of 0-6. The process is particularly useful when the catalyst is of the organo-transition metal type. All the examples use such catalysts.
Patent GB-872824-A (GB)
Title: Improvements relating to perambulators and baby carriages
IPC: B62B9/14
Filed: 1959-01-16
Abstract: 872,824. Perambulator hoods. SWEPSON, N. Nov. 5, 1959 [Jan. 16, 1959], No. 1660/59. Class 108(1). The interior of a raised hood on a perambulator is protected from the weather by a cover comprising a flexible transparent sheet of plastic material 10 bordered on three edges by fabric strips 12, 13 sewn over ends 17 of a peripheral band of netting, the opposite long edge of the netting being sewn into a pocket formed by a folded over fabric strip 18 containing an elastic cord 19. To hold the cover in position the cord is stretched over the hood and flexible fastenings 21, 22 on each side are attached to the hood hinges.
Patent GB-551599-A (GB)
Title: Improvements in and relating to double acting hydraulic shock absorbers for vehicles
IPC: F16F9/14
Filed: 1942-02-09
Abstract: 551,599. Vibration dampers. HAYWOOD, H. Feb. 9, 1942, No. 1672. [Class 108 (iii)] Double acting rotary vane hydraulic dampers include a throttling element in the form of a spring- controlled needle valve adjustable by a cam in accordance with the movement of the vane and also adjustable independently by hand. The vane B oscillates between partitions H forming two chambers h<SP>1</SP> h<SP>2</SP> which are connected through the V shaped orifice d in the sleeve D, the extent to which the orifice is opened depending upon the needle valve F which is urged one way by a spring e so that its round end engages a cam surface h<SP>6</SP> on the member H in which are also provided reserve liquid spaces h communicating with the pressure chambers h<SP>1</SP> h<SP>2</SP> through one way ball valves h<SP>5</SP> in the partitions. The sleeve D may be adjusted vertically by an eccentric pin G in spindle G, the outer end of which carries an adjusting disc f<SP>1</SP> with holes engaging a spring stop. Spindle F is mounted in the operating shaft C having an operating arm K.
Patent GB-719023-A (GB)
Title: An improved valve for water softeners
IPC: C02F1/42
Filed: 1953-01-21
Abstract: 719,023. Ion-exchange plant. ROBERTS, V. F. Jan. 21, 1953 [Feb. 20, 1952], No. 1716/53. Class 46. [Also in Group XXIX] A control valve in a water softening apparatus of the type in which water is passed through softening material comprises a rotatable disc pressed against its seat by the water supply pressure acting on its rear face and partially counterbalanced by applying the supply pressure to a series of shallow channels between the operative face of the disc and its seat. The disc 11, Fig. 1, can be rotated by a hand wheel 14 and its stem passes through packing 16 positioned between a gland nut 17 and a collar 18. The mains supply enters at 20 and has full access to the rear face of the disc, and the softened water passes out through a port 22. The port 6 in the valve seat, shown in Fig. 4, leads into the container and is connected to an upstanding tube, not shown, carrying a filter at its upper end, and the outlet port 7 from the container is also covered by a filter. The port 23 leads to drain passages 24. Control ducts 26 ... 28 connect to the ports 6, 7, 22, respectively. Shallow channcis 37 ... 41 in the valve seat and 42, 43, Fig. 5, in the operative face of the disc permit of the partial counterbalancing of the mains pressure applied to the outer face of the disc: The flow controi parts of the valve disc comprises through apertures 31, 32 and ducts 33 ... 35. The valve can be rotated in eight operating positions corresponding to (a) normal flow, in which the mains supply is softened, and passes to the outlet 22, (b) back flush, in which the mains supply passes in the reverse direction through the so tener and out to drain but, at the same time, a flow at reduced pressure is provided to the outlet 22, (c) draining, in which the container is emptied and can be refilled with salt, &c. and a supply of hard water passes to outlet 22, (d) drain flush, in which the mains supply passes directly to the dram outlet, (e) filling, in which the mains supply passes into the container through the outlet 7 and so to drain, and a reduced pressure supply goes to the out'et, 22, (f) off position, in which the outlet 22 is closed off (g) hard water supply, in which the softener is bye-passed, and (h) salt flush, in which the mains supply removes excess salt to drain and gives a reduced pressure supply to the outlet 22.
Patent GB-1277372-A (GB)
Title: A ventilator grille
Inventor: BAXTER JOHN KEITH
IPC: B60J1/20
Filed: 1970-01-14
Abstract: 1277372 Grille J K BAXTER and P T STIDDARD 12 Oct 1970 [14 Jan 1970] 1725/70 Heading E1J A ventilator grille comprises a lattice having recesses at one edge and projections 3 at the opposite edge, so that the grille may be supported in the gap of a partly open vehicle window. The lattice comprises a set of strips 7 sandwiched between and pivotally connected to two superimposed sets of strips 6, (9). Ends of strips 6, (9) project to form recesses between them to accommodate a vehicle sliding window 2, and ends of strips 7 project for insertion in the pane receiving channel in frame 4. In an alternative embodiment (Fig. 3, not shown) the ends of the strips are notched.
Patent GB-1417181-A (GB)
Title: Colour television cameras
IPC: H04N9/04
Filed: 1972-01-14
Abstract: 1417181 Colour television EMI Ltd 15 Jan 1973 [14 Jan 1972] 1777/72 Heading H4F In a colour television camera using a separate luminance pick-up tube 3, the amplitude of the luminance signal Y H  is compared at 7 with a luminance signal Y L  derived at 11 from the red, green and blue outputs of the chrominance tube or tubes 4, to provide a control signal to maintain the ratio between these two luminance signals constant, if, for example, the picture content changes due to operation of a zoom lens. The luminance tube receives light passed through a central aperture in a mirror included in a beam splitter 2, the peripheral light being passed to chrominance tube or tubes 4. The control signal may alter the area of the aperture defined by an iris 1 to alter the amount of light incident on the chrominance tube or tubes 4 or beam splitter 2 may include onr or more variable optical elements controlled by the control signal. Alternatively or additionally the control signal may control the ratio of the gain of luminance amplifier 5 to the gains of chrominance amplifiers 8, 9 and 10. For a camera using a single chrominance tube 4, the luminance signals Y L  and Y H  may be compared in a further circuit to provide a signal to register the scans in luminance tube 3 and chrominance tube 4.
Patent GB-1318852-A (GB)
Title: Material for photography
IPC: G03C8/24
Filed: 1971-01-14
Abstract: 1318852 Photographic diffusion transfer EASTMAN KODAK CO 14 Jan 1971 [ 14 Jan 1970] 1831/71 Heading G2C Silver salt diffusion transfer process is carried out in the presence of a 5-selenyl-1,2,3,4- tetrazole as toning agent. The tetrazole is preferably substituted in the 1-position and is added to the receiving material, processing liquid or silver halide emulsion. Preferably the receiving sheet contains a polyvinyl quaternary salt, an iodide an Ag salt or complex, and Pd nuclei and has a release coating.
Patent GB-100577-A (GB)
Title: Improvements in Mountings for Machine Guns.
Inventor: SANGSTER CHARLES THOMAS BROCK
IPC: F41A23/12
Filed: 1915-04-20
Abstract: 100,577. Sangster, C. T. B. April 20, 1915. Machine guns.- Consists in detachably connecting a tripod mount to the casing or water jacket of the gun by means ot a strap c having a screw engaging a slot in a member a to which the vertical pivot e<1> of the tripod head is connected by a sleeve e and trunnions d.
Patent GB-265189-A (GB)
Title: A carburetter for internal combustion engines particularly adapted for heavy oils
IPC: F02M31/093
Filed: 1927-01-21
Abstract: 265,189. Nadal, S. Jan. 29, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spray carburettors. -Heavy fuel from a nozzle 2 is drawn with a small quantity of air through a conduit 3 surrounded by an exhaust jacket 6. and enters the mixing-chamber 4 which is provided with a main air inlet 7 and with an unheated conduit 11 conveying light fuel mixture for starting. The outlet of the conduit 11 is cut off as the throttle 5 is opened.
Patent GB-1004526-A (GB)
Title: Electrical adaptor
Inventor: STRINGER EDWARD
IPC: H01R33/94
Filed: 1963-01-16
Abstract: 1,004,526. Two-part couplings. BARRING- TON PRODUCTS (LEICESTER) Ltd. Jan. 2, 1964 [Jan. 16, 1963], No. 1902/63. Heading H2E. A bayonet plug adaptor for a two-pin plug consists of a cylindrical headpiece 2 and a flat grip piece 3 (Fig. 4) which contains the sockets. The interior of the grip piece has two pockets 7 (Fig. 2) each of which contains under slight compression a socket formed of a skirt defined by three resilient metal blades 15 made from a single strip to constitute the contact for a pin plug. A metal stem 16 extends through a gap 11 and slot 14 to form the upper contact 17 located in a slight depression 12 in the surface of the headpiece. The body is in two similar sections and attachment of the sections is facilitated by interlocking hooked portions 8, 9 (Fig. 4), the assembly being completed by forcing a bayonet pin 18 through bosses 19 on the two halves. The exterior of the grip-piece carries a series of ribs 4 to promote gripping.
Patent GB-1337623-A (GB)
Title: Coupling means  coupling together floating wharves floating  bridges or the like
IPC: E02B3/06
Filed: 1971-01-14
Abstract: 1337623 Pontoon rafts B WILSON 14 Jan 1971 [17 Jan 1970 12 Aug 1970] 1948/71 Headings B7A and B7S [Also in Divisions E1-E2] Sections of floating wharves, bridges and the like are secured together by a bar fixed to one section and detachably connected to an adjacent section. The bar, which may be of steel or glassfibre-reinforced plastics, is sufficiently elastically flexible to allow controlled resilient flexure between sections.  As shown in Fig. 2 a round bar 14 passes through apertured ears 15, 16 on each section. The right-hand end of bar 14 carries a detent pin 21 which is entered through grooves in the ears and is then turned to effect locking. In a modification, a flat bar is nailed to one section and passes into a loop on the other section where it is secured by a pin.  An end one of a string of sections may be attached to a vertical pole driven into, e.g., the sea bed by a fastening such as a hoop or ring allowing free vertical movement of the section relative to the pole.
Patent GB-1483021-A (GB)
Title: Optical localisation devices
IPC: G01S1/70
Filed: 1975-01-17
Abstract: 1483021 Optical guidance system SOC DE FABRICATION D'INSTRUMENTS DE MESURE SFIM 17 Jan 1975 [21 Jan 1974] 2018/75 Heading H4D The optical guidance system incorporating a scanning light (laser) beam, pulse frequency versus angular position modulated, described in Specification 1,480,474 is modified by the scanning laser beam being replaced by a fixed fan beam 4, the modulators, both disc, 5, and drum Figs. 2-6 (not shown) and the receivers 9 (and Figs. 9-11 (not shown)) remaining the same.
Patent GB-483168-A (GB)
Title: Improvements in and relating to the construction of adjustable trussed framework
IPC: E04G11/54
Filed: 1937-01-25
Abstract: 483,168. Lattice beams. CHEETHAM, R. Jan. 25, 1937, No. 2109. [Class 20 (ii)] An extensible beam-truss comprises two or more telescopic longitudinal members and an expansible lever system, the latter being connected to the former by sliding pivot brackets adapted to be fixed to the longitudinal members to form a rigid trussed beam. The longitudinal members each comprise telescopic rods 40, 41 on which slide brackets 42, to the sides of which are pivoted the crossing bars 46 of the expandible lever system, adapted to be expanded and contracted by right and left hand screw devices 51. Especially stiff bars 48 are disposed at the ends of the lever system, and end plates 45 are also pivoted to the end sliding brackets. After adjustment for length the brackets are clamped to the rods by clamping plates 43, Fig. 6, or by means of bolts, rotary cams, or wedges. The brackets may be split and be clamped together by means of bolts passing through abutting flanges on the two parts. Various arrangements of telescoping members and of the expanding lever system are shown and described. The rods may be replaced by apertured or recessed bars 78, Fig. 28, adapted to receive through bolts 82, on the ends or centres of which, are pivoted the ends of the links 79 of the lever system and in these constructions adjustable end bars 84, 85 are provided to give a final fine adjustment for the length of the beam. The adjustable end bars may be replaced by a single slotted extension bar.
Patent GB-548629-A (GB)
Title: Improvements in and relating to show cases
IPC: A47F3/00
Filed: 1941-02-17
Abstract: 548,629. Catches. VANDERVELD, A., and GRAND RAPIDS STORE EQUIPMENT' CO. Feb. 17, 1941, No. 2129. [Class 44] [Also in Group XIV] Removable door frames 7 of show cases are secured to the end walls 3 by pivoted catches 15 having hooks 17 to enter U-shaped strips 5 let into the end walls and to engage upwardly or downwardly projecting tongues 6 struck up from the sides of the strips 5. The upright members 7 of the door frames are of S-section and are joined by top and bottom frame members 8 serving as guides for sliding glass doors 9. Finishing strips 10 are located between the front of the frame members 7 and the sides 3 of the show case. The catches 15 have bent ears 18 adapted to snap behind projections 14 on attachment plates 11 to hold them in engaged position. The catches may be reversely set as shown in Fig. 4, or the hooks may be shaped to lock between adjacent tongues 6 to prevent accidental displacement. Similar means are described for securing frames of vertically sliding doors one of which is movable to turn horizontally beneath the top of the case. It is stated that the fitting may be applied to shelves. Specification 540,100, [Group XIV], is referred to.
Patent GB-1345827-A (GB)
Title: Vulcanizable elastomer composition
IPC: C08K3/06
Filed: 1972-01-17
Abstract: 1345827 Vulcanizing bromobutyl rubber POLYSAR Ltd 17 Jan 1972 [11 Feb 1971] 2137/72 Heading C3E A composition comprising a brominated butyl rubber and 0À1 to 5 parts by weight of elemental sulphur, per 100 parts of rubber, as the sole vulcanising agent, is vulcanized. The butyl rubber is an isobutylene/isoprene copolymer containing 0À5 to 5 mole per cent copolymerized isoprene.
Patent GB-1169802-A (GB)
Title: Device for Calibrating Analysis Apparatus
IPC: G01D18/00
Filed: 1967-01-16
Abstract: 1,169, 802. Calibrating infrared and other electrical gas analyzers. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAIS. Jan. 16, 1967 [Jan. 18, 1966], No. 2194/67. Headings G1A and G1N. An infrared or other analyzer is calibrated by a programmer which periodically shuts off the test gas and passes two or more calibration gases through the analyzer in sequence. The corresponding analyzer outputs are compared with preset reference signals and any difference used to supply motors which reduce the difference. Once every two hours, a signal from the programmer 31 closes a valve 48 to shut off the gas under test and opens a valve 51 to supply gas free of the gas being tested for. The output of the analyzer is compared in amplifier 21 with a predetermined value set on potentiometer 22 and the amplifier output, if any, adjusts the position of a diaphragm 30 until the analyzer output equals the predetermined value. The programmer then closes valve 51 and opens 52 to admit gas having the maximum concentration of gas to be tested for. At the same time relays 24, 29 are changed over and the analyzer output is compared in amplifier 21 with a value set on potentiometer 23 to accord with the actual composition of the calibration gas. The output of amplifier 21 adjusts the gain of amplifier 15 until the analyzer output reaches the predetermined value. Means may be provided to repeat the calibration cycle so long as the corrections made by either of motors 27 or 28 is greater than a certain size. A switch is provided for manual initiation of the calibration cycle at any time. The invention may be applied to chromatographs, spectrometers and thermal conductivity analyzers and analyzers operating by paramagnetism.
Patent GB-787610-A (GB)
Title: Improvements in or relating to electric control apparatus
IPC: H02P9/34
Filed: 1956-01-24
Abstract: 787,610. Automatic voltage supply systems for consumption apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 24, 1956 [Jan. 31, 1955], No. 2257/56. Classes 38. [Also in Group XL (c)] A system for supplying a load 14 from a source 12 of current has a junction type transistor 16 interconnected between the load and the source and acting as a switch, the transistor 16 being controlled by a pulse generator 24 so that by varying the width of the pulse from the pulse generator 24 the ratio of the ON/OFF times of the transistor 16 can be altered, thereby varying the average current supplied to the load 14 from the source 12. The controlling pulses are produced by a pulse generator 24 comprising saturable reactors 30, 32 and transistors 38, 40. The saturable reactors 30, 32 are provided with windings 34, 56, 70 and 36, 58, 72 respectively. The winding 34 and the transistor 38 are arranged in a series circuit with a resistor 26 and a direct current source such as a battery 54, the corresponding winding 36 and the transistor 40 being similarly arranged with the resistor 26 and the battery 54. The transistors 38, 40 are connected to an alternating current source by way of a transformer 62 so that the transistors 38, 40 are rendered conductive during alternate half-cycles of the alternating current supply. When a transistor-say 40-is made conductive, current flows from the battery 54 through the resistor 26 and the winding 36. The current through the winding 36 eventually saturates the reactor 32, whereupon practically all the battery voltage is applied to the resistor 26, that is across the emitter 18 and base 22 of the transistor 16 due to the connection 74. Since the core of the reactor has a rectangular hysteresis characteristic the voltage applied to the transistor 16 is in the form of a pulse. The transistor 16 therefore conducts during the existence of the pulse and current flows from the source 12 to the load 14. During the next half-cycle of the supply transistor 38 becomes conductive and a further pulse is applied to the transistor 16 by means of the reactor 30 becoming saturated by the current in the winding 34. The width of the pulses may be altered by varying the initial magnetization level of the cores of the reactors 30, 32 by variation of the current flowing through the windings 70, 72, thereby causing earlier or later saturation of the cores when the transistors 38, 40 are conductive. Bias may be applied to the cores by means of the windings 56, 58. In the embodiment shown in Fig. 3, the arrangement is applied to a system for keeping the output voltage of a generator 90 constant. Variation of the output voltage is detected and compared with a reference voltage, represented by a battery 97, and the resultant voltage applied to the windings 70, 72 to affect the pulse width so that the transistor 16 is effective to alter the average current in the field winding 94 of the generator to return the output voltage of the generator 90 to the normal value. The rectifier 100 is a surge suppression device.
Patent GB-119182-A (GB)
Title: A Means to Prevent the Warping of Filing Cabinet and other Drawer Fronts, or other Articles of Furniture or Joinery.
Inventor: STONE RICHARD FAIRFAX
IPC: F16B12/12
Filed: 1918-02-11
Abstract: 119,182. Stone, R. F. Feb. 11, 1918. Frames.-In order to prevent the warping of woodwork employed for drawer fronts and other articles of furniture and joinery, slots a, b are cut across the grain which receive an angleiron strip d.
Patent GB-685092-A (GB)
Title: Improvements in or relating to diagnostic devices
IPC: G01N33/72
Filed: 1951-01-31
Abstract: An article for detecting the presence of occult blood in a liquid medium, comprises a closed package formed of sheet material readily permeable to aqueous liquids and containing a material which is colour responsive to the presence of blood, such sheet material being capable of rendering visible any colour produced by the indicator in detecting the presence of blood.  The permeable sheet may be e.g. paper, especially filter paper, or close woven cloth.  A preferred reagent mixture colour responsive to blood is o-tolidine 0.5 to 4, and preferably 1, parts by weight; strontium peroxide 5 to 15, and preferably 9, parts by weight; tartaric acid 20 to 75, and preferably 30, parts by weight; calcium acetate 20 to 60, and preferably 60, parts by weight; corn starch 1 to 10, and preferably 5, parts by weight; sodium bicarbonate 0.5 to 1.5, and preferably 0.6, parts by weight.  The components are dried, mixed and placed in an envelope of filter paper which is sealed around its edges with a water-insoluble cement.  In use, the package is placed in a toilet bowl containing water, urine and/or feces.  The o-tolidine may be replaced by o-toluidine, benzidine or tolidine-o-dihydrochloride; the strontium peroxide by sodium carbonate peroxide, barium peroxide, sodium p pyrophosphate peroxide or sodium perborosilicate; the tartaric acid by citric, maleic, succinic or itaconic acids; the calcium acetate by sodium acetate, potassium acetate or lithium acetate; and the corn starch by talc, lactose or flour.
Patent GB-100823-A (GB)
Title: Improvements in Making Fire Bricks and the like and in Cores for use therewith.
Inventor: WILLIAMS EDWARD
IPC: B28B7/30
Filed: 1916-02-19
Abstract: 100,823. Williams, E., and Girling, W. H. Feb. 19, 1916. Moulds.-Double conical holes of the shape shown in Fig. 1 are formed in fire-bricks &c. by means of the core shown in section in Fig. 2 and in bottom plan view in Fig. 4, and comprising a central portion d, e, f and removable sections h, j, l, k. A recess m in the part e receives projections n on the removable sections, and dovetailed projections g on the lower face engage correspondingly-shaped recesses p in the lower edge of the outer sections. The faces between the sections j, l, k are radial and vertical, and the faces of the section h converge upwards but cut the top and bottom faces in parallel lines. The central core can be withdrawn axially, and then the sections h, k, j, l respectively.