baber/WOPTO huggingface dataset:
Patent GB-427669-A (GB)
Title: Improvements relating to air agitators
IPC: F24F7/007
Filed: 1934-02-21
Abstract: 427,669. Oscillating motors. PEZZONI, O., 44, Viale Abruzzi, Milan, Italy. Feb. 21, 1934, No. 5758. [Class 35] [See also Group X] An air agitator comprises a rod to which is given a pendular motion and which carries at its end a fan, or paper fringe to drive away flies. A rod 2 pivoted at 20 to a frame 15 has an extensible portion 16 carrying a fringe 19, and is oscillated electrically by a coil 1 which moves over a core 8. Movement of the rod to the right causes a pin 24 to raise a pivoted member 3, and on the return movement of the rod the pin engages a shoulder 23, and raises a blade 5 into contact with a resilient plate 7 which closes a circuit through the coil and gives an impulse to the swinging rod which completes its movement in the opposite direction and receives another impulse.
Patent GB-377242-A (GB)
Title: Improvements in or relating to muffle furnaces and the like
IPC: F23D99/00
Filed: 1931-02-24
Abstract: 377,242. Retort furnaces. HAZLEHURST, H. E., TEMPLE, H. E., 6, Lloyd's Avenue, and SMOKELESS FUELS (1930), Ltd., D. & I., 5, Victoria Street, both in London. Feb. 24, 1931, No. 5779. [Classes 51 (i), 51 (ii), and 55 (i).] A furnace for the heating of fuel briquettes comprises a bank of retorts 14 of elongated cross section having continuous ribs or flanges 16, which abut when the retorts are superimposed, and form transverse flue passages for the heating gases. In the arrangement shown having two banks of retorts, one on each side of an intermediate flue space 1, heating gases are withdrawn from the retort chambers 2, 3 through flues 9, 10, by a fan, which returns them to the flue space 1, additional fresh heating gases being supplied from a side combustion chamber 6 fired by an oil or gas burner 7. The chambers 2, 3 are separated from the space 1 by apertured walls 5. The briquettes are treated in thin layers on removable trays, and scavenging gases may be introduced into the retorts.
Patent GB-1150189-A (GB)
Title: Improvements in or relating to Television Camera Tubes.
Inventor: KAHNG DAWON
IPC: H01L31/00
Filed: 1968-02-06
Abstract: 1,150,189. Image pick-up tubes; photoconductive devices. WESTERN ELECTRIC CO. Inc. 6 Feb., 1968 [7 Feb., 1967], No. 5793/68. Headings HID and H1K. The charge storage target in a television pickup tube comprises an n-type semi-conductor having a higher concentration of deep donor centres, i.e. donor centres that cannot be ionized by thermal agitation at the temperature to which it is subjected, than shallow donor centres. In a vidicon type system the semiconductor 14 is insulated from a conductive base-plate 17 by an insulating film 16. Parallel strips 21 covered with insulation 22 are provided over the surface of the semi-conductor scanned by the beam and are biased positively with respect to the base-plate 17 to sweep out electrons excited from the donor centres. The effect of the excitation of the deep donors by the incident light is to reduce the width of the depletion region and the value of the voltage drop in the semi-conductor. The voltage drop across the insulator 16 is then increased and the charges are effectively stored in elemental capacitors. The charge density distribution is maintained because of the immobility of the deep donor ions. As the scanning beam impinges on each target element, beam electrons recombine with deep donor ions to discharge the elemental capacitor. The strips 21 may be eliminated if provision is made for modulating the energy of the scanning beam between values at which the secondary emission ratio of the target is greater and less than unity. At the higher energy values electrons in excess of the number required for deep donor recombination are extracted by secondary emission. The semiconductor material may be a II-VI compound such as cadmium sulphide and cadmium selenide or a III-V compound such as gallium arsenide and suitable dimensions for the target structure are given. The structure may be formed by vapour deposition or by use of single crystal material, with or without epitaxially grown layers. The resistivity of the semiconductor is preferably in the range of 10<SP>6</SP>- 3 x 10<SP>10</SP> ohm-cms. The deep donor density in the semi-conductor is more than 10<SP>17</SP>/cm.<SP>3</SP>, preferably 10-<SP>19</SP>/cm.<SP>3</SP>, and the shallow donor density less than 10<SP>16</SP>/cm.<SP>3</SP> The insulating film 16 may be eliminated and the semi-conductor bonded to the base-plate by a junction contact which is insulating under reverse bias conditions. The light radiation may be incident on the scanned side of the target, the tube being of the econoscope type.
Patent GB-704716-A (GB)
Title: Improved power transmission mechanism for motor vehicles
IPC: F16H47/06
Filed: 1952-03-06
Abstract: 704,716. Valves actuated by centrifugal force. GENERAL MOTORS CORPORATION. March 6, 1952 [March 8, 1951], No. 5815/52. Class 135. [Also in Group XXIV] In a vehicle transmission having a pair of fluid-pressure engaged friction clutches selecting respectively direct mechanical drive and a reduced drive through a hydrodynamic torque-converter (see Group XXIV), upshift to the direct-drive clutch is controlled by an output-driven centrifugal valve comprising a ported housing 202, coupled for rotation with an output-driven shaft 94, and having a valve-member 204, moved radially outwards by a calibrated centrifugal mass 206 opposed by a calibrated spring 207. Pumped oil enters at 151 and, through passages 210, 211, reaches a shaft-passage 212, which is initially blanked by a valve-land 204. At a predetermined vehicle speed (25 m.p.h.) the valve 204 moves out and pressure passes from 212 into a parallel shaft passage 215, previously exhausting through an opening 209 and port 218, and from 215 through passages 216, 217 to a delivery outlet 165. At the same time delivery pressure, passing through the opening 209, now acts outwardly on the valve 204, assisting the centrifugal mass 206, so that the return closing inward movement for shift back to converterdrive can only occur at a lower speed than that of the opening outward movement.
Patent GB-179703-A (GB)
Title: Improvements in forms for reinforced concrete walls
IPC: E04G11/22
Filed: 1921-02-21
Abstract: 179,703. Hillman, E. B., Kimber, H., and Dadisman, H. Feb. 21, 1921. Moulding walls in situ.- In building hollow or solid concrete walls course by course, the shutters 4, 5 are supported by uprights 8 which are adjustably carried by a cross-bar 3 slidably supported on a standard 1. The shutters are raised to different levels by a friction ratchet 17<1>, 18, 19. 20, 21, and are supported at these levels by a friction collar 14 and arm 15. The bottoms of the shutters are caused to grip the completed course by screws 11 at their upper ends. The shutters have overlapping joints with hook members 7.
Patent GB-379319-A (GB)
Title: Improvements in and relating to the manufacture of ammonium carbonate and bicarbonate
IPC: C01C1/26
Filed: 1931-02-25
Abstract: <PICT:0379319/III/1> <PICT:0379319/III/2> Ammonium carbonate or bicarbonate are obtained by reacting upon concentrated gas liquor, or the distillation products thereof, with concentrated carbon dioxide from waste sources.  The waste carbon dioxide may be employed to distil the concentrated gas liquors, ammonium carbonate or bicarbonate being obtained by condensation.  The carbon dioxide employed may be derived from the effluent gases from ammonium sulphate saturators preferably after the removal of hydrogen sulphide, from the effluent gases from super phosphate plants after the removal of ¦fluorine compounds by washing, from flue gases after the removal of sulphur dioxide by washing and the concentration of the carbon dioxide by its absorption in aqueous potassium carbonate and subsequent disengagement by the heat of the flue gases or from the lime p  sludge from ammonia stills by its treatment with nitric acid. According to one modification, ordinary gas liquor is pumped by a pump 2, Fig. 1, through a heat exchanger 3, and a conduit 4 into a still 1.  Liquor containing chemically fixed ammonia collects at the lower part of this still, is lined by milk of lime from a tank 5 and passes through a pipe 6 to a heated still 7.  Steam and ammonia pass therefrom via a pipe 8 to the still 1 and steam, ammonia, carbon dioxide and hydrogen sulphide pass out through a pipe 9 to an ammonium sulphate saturator 10.  Waste gases leave the staurator through a pipe 12 and a part thereof pass through a pipe 13 being in part returned to the still 1 through a pipe 14, the remainder passing through a pipe 15 and the heat exchanger 3. After leaving the heat exchanger the waste gases are preferably freed from hydrogen sulphide and then passed up a tower packed with coke, Raschig rings or the like, and irrigated with concentrated gas liquor, ammonium carbonate or bicarbonate being formed.  The remainder of the hot effluent gases from the saturator 10 are taken to a pipe 23, Fig. 2, and may be superheated in a furnace 24 thereafter entering a volatilizing chamber 21 of a still 19.  This still is fed with concentrated gas liquor which passes through a preheater 17 and is provided with cooling coils 20, 22 and a series of bubbling chambers located in the lower part of the still.  Steam is passed in at the bottom of the still.  Ammonia, carbon dioxide, hydrogen sulphide and steam pass from the still through pipes 25, 30 and a magna of ammonium carbonate or bicarbonate crystals separates in saturator - condensers 26, 27. Hydrogen sulphide leaves through a pipe 31. Specification 14618/95, [Class 1, Acids, alkalies, &c.], is referred to.
Patent GB-487969-A (GB)
Title: Improvements in or relating to the rendering of cloth non-inflammable
IPC: D06M11/13
Filed: 1937-02-27
Abstract: 487,969. Fireproofing. ALMOND, R., and YOUNG. A. M. Feb. 27. 1937. No. 5931. [Class 140] A mixture for fireproofing cloth comprises ammonium sulphate (5 to 10 parts), ammonium chloride (1 to 4 parts), formaldehyde (1 to 2 parts), magnesium carbonate (1 to 2 parts), zinc sulphate (1 to 2 parts), and sodium phosphate (1 to 2 parts). For use, the mixture is added to water, preferably boiling water.
Patent GB-653844-A (GB)
Title: Improvement in electromagnetic devices
IPC: H04R11/00
Filed: 1948-02-27
Abstract: A loud-speaker or microphone (see Groups XXXV and XXXIX), employs permanent magnets composed of 53 per cent iron, 20 per cent nickel, 10 per cent aluminium, 12 per cent cobalt and 5 per cent copper, an armature composed of 3.8 per cent molybdenum, 78 per cent nickel and remainder iron, and pole members composed of 45 per cent nickel and remainder iron.
Patent GB-435697-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/66
Filed: 1934-02-24
Abstract: 435,697. Electric incandescent lamps with cut-outs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 24, 1934, No. 6095. Convention date, Oct. 14, 1933. Drawings to Specification. [Class 39 (ii)] [See also Group XXXVI] Each leading-in wire of a gas-filled electric incandescent lamp of the " coiled-coil " type is provided with a fuse which is made of bare wire with its end attached at or near the corresponding contact of the cap, the short-circuit constant C of the fuse material being less than 300 Î 10<6> as expressed by the formula t=C(q)2/Ik, where t is the fusing time in seconds, q the wire diameter in cms., and Ik the short-circuit current in amperes. Suitable materials for use as fuse wires are nickel and nickel alloys, such as constantan, nickel-chromium, konel metal, and the material known under the Registered Trade Mark " Monel " metal. The whole of each leading-in wire from the cap contact to the pinch is preferably constituted by a fuse wire. The cap may be coated internally with insulating material, for example an insulating lacquer.
Patent GB-590171-A (GB)
Title: Improvements in regulating means for induction motors
IPC: H02P25/32
Filed: 1944-04-03
Abstract: 590,171. Induction machines. GENERAL ELECTRIC CO., Ltd., JAKEMAN, R. G., and NIELSEN, H. April 3, 1944, No. 6156. [Class 35] The speed of an induction motor 10 is regulated by a grid controlled arc rectifier 14 connected between its slip-rings 12 and a D.C. motor 25. This D.C. motor may either assist the main motor or else feed back energy to the mains through an A.C. generator 31 as shown. A transformer 9 forms a connection between the induction motor and the anodes of the rectifier, and also has a winding 18 which feeds a winding 19 on the peaking transformer 16 through a phase shifter 20. The motor Sold 26 is controlled by a variable resistance 27 adjusted simultaneously with or independently of the phase shifter 20. The set is started by using the generator 31 as a motor.
Patent GB-430594-A (GB)
Title: Improvements in moving lens cinematograph machines
IPC: G03B41/08
Filed: 1934-02-26
Abstract: 430,594. Kinematograph apparatus. JOHN, W. E., National Bank Building, Market Street, Johannesburg, South Africa. Feb. 26, 1934, No. 6228. [Class 97 (i)] In continuous - feed apparatus having compensating means of the type described in Specifications 290,372, 319,302, 334,033, [all in Class 97 (i)], and comprising lens carriers 2 moved, while compensating, through a straight guide 3, by way of arcuate guides 4, 9, from and to pockets in a rotating wheel 6, the carriers are in direct cylindrical contact with one another while in the guides 3, 4, 9, and the guides 3, 4, 9 are provided with surfaces engaging non-cylindrical surfaces on the carriers ; the arcuate guides may be similar in form and size, the straight guide may lie on a diameter of the wheel and be long enough to accommodate five carriers, and the length of the exposure aperture 18, when the apparatus is used for three colour work, may be equal to three diameters of the carriers. Each carrier may comprise a flange 15 having surfaces 10 engaging the corresponding surfaces of contiguous carriers while the carriers are in the straight guide, surfaces 11, 12, perpendicular to the surfaces 10, engaging surface 13, 14 forming the straight guide, curved surfaces 16 engaging outer guide surfaces 21 in the arcuate guides and serving with the engagement between the surface 12 and an inner guide surface 22 to constrain the carriers so that their axes of symmetry are radial in the arcuate guides, and curved surfaces 17 engaging a curved guide surface 23 and, with the engagement between the surface 12 and a guide surface 24, serving to constrain the carriers while they are in the wheel pockets. The total number of lens carriers is preferably fifteen and the number of pockets in the wheel 6 is preferably nineteen.
Patent GB-1030262-A (GB)
Title: Improvements in indexing mechanism for turntables
Inventor: ELLIS JOHN HERBERT
IPC: B23Q16/06
Filed: 1964-02-14
Abstract: 1,030,262. Stamping; indexing - tables. PHILLIPS BROS. & ELLIS Ltd. Feb. 8, 1965 [Feb. 14, 1964], No. 6271/64. Headings B3B and B3Q. Indexing mechanism for a press or machinetool turntable comprises a plate 4, Figs. 1-3 (not shown), with indexing notches 5, a pivot 3 supporting the plate 4 and an arm 6 oscillated by a pneumatic cylinder 9, 10, a spring-pressed pawl 11 for locking the arm to the plate 4 in one direction of rotation and permitting the arm to return without the plate, and a pawl 21 for engaging the notches 5 and holding the plate between indexing steps. A ball or roller bearing 34 on the pivoted pawl 21 is pressed by a plunger into the notch 5, being assisted by engagement between the pawl and the adjacent end of the arm 6 at the end of the stroke of the arm. The arm 6 operates microswitches 50, 51. As applied to indexing a work-table 1 beneath a heated platen carrying a marking or embossing die, operation of switch 50 causes the platen to move down. A timer controls return of the platen, and a further microswitch operated towards the end of the return stroke, starts the return stroke of the indexing cylinder 9, 10. A forward stroke is initiated by switch 51 at the end of the return stroke. A bed 30 for the table 1 has feet 35 and a part 36 with a groove 37 for a felt pad.
Patent GB-1280012-A (GB)
Title: Improvements in or relating to ion beam sources
Inventor: FREEMAN JAMES HARRY
IPC: H01J49/10
Filed: 1969-02-05
Abstract: 1280012 Ion sources UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 Jan 1970 [5 Feb 1969] 6289/69 Heading HID An ion source, e.g. for the ion separator described in Specification 1,280,012, comprises. an evacuated enclosure 25 in which ions are generated and from which they are extracted in the form of a beam 12, the enclosure being attached in a vacuum-tight manner to an enclosed beam passageway in such a manner as to permit pivotal motion of the enclosure about the origin or apparent point of origin of the beam to adjust the relative inclination of the ejected ion beam to the passageway. As shown in Fig. 3, ion beam source 11 includes an outer cylindrical vessel 23, connected to the ion beam passageway, and an inner cylindrical vessel 24, supporting enclosure 25, which is connected to the outer vessel 23 by vacuum bellows 26. Spherically machined opposing surfaces 28, 29 on the outer vessel and 31, 32 on the inner vessel, whose centres of curvature coincide with the extraction slit 27, provide the necessary constraint to produce pivotal movement of the enclosure. The ion source may be of the type described in Specification 916,703 in which the source material is heated in an oven 33 behind the arc chamber 25. Electrons from heated filament 34 in applied magnetic field A ionize the gas entering chamber 25.
Patent GB-549371-A (GB)
Title: Improvements in dry stripping photographic materials
IPC: G03C1/805
Filed: 1941-05-16
Abstract: 549,371. Photographic stripping material KODAK, Ltd., and SOPER, A. K. May 16, 1941, No. 6353. [Class 98 (ii)] A dry-stripping sensitive' photographic material comprises a temporary support, a gelatin substratum, a layer of a water-soluble substance such as wax or resin deposited in discontinuous form e.g. formed by coating from a solution of a resin in a mixture of liquids having differing boiling points, such liquids being chosen such that at least one higher boiling liquid is not itself a solvent at the coating temperature for the whole of the resin, a water-permeable layer such as gelatin, and a sensitive emulsion layer. A wax layer may be provided between the discontinuous layer and the water-permeable layer. A resin or wax or both may be used in suspension as an emulsion, especially an aqueous emulsion. In Example 1, a gelatin layer, which may contain an antihalation colouring matter, carried by a paper support is coated successively with a solution of gum sandarac in acetone and water and with a solution of beeswax in trichlorethylene, and then with a gelatin layer and a silver halide emulsion layer. In Example 2, the gelatine layer is coated with a solution of gum sandarac and stearic acid in acetone and trichlorethylene, and then with the gelatin layer and the sensitive emulsion. An aqueous emulsion for coating a stripping layer comprises beeswax, stearic acid, triethanolamine, and water. The stripping layers may be coloured for antihalation purposes, for example with colloidal manganese dioxide or with a decolourisable basic dye mordanted on to copper ferrocyanide dispersed in a wax emulsion forming the stripping layer. A small quantity of gelatin may be added to' the stripping layer solution. Cellulose esters or other derivatives or rubber may be used in place of resins. The emulsion layer may comprise a highspeed yellow-sensitive silver bromide emulsion giving a high gamma on full development. Specifications 12091/15 and 126,149, [both in Class 98 (ii)], are referred to.
Patent GB-535991-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q1/442
Filed: 1940-04-09
Abstract: 535,991. Exchange systems. ELECTRICAL RESEARCH PRODUCTS Inc. April 9, 1940, No. 6355. Convention date, April 18, 1939. [Class 40 (iv)] A single-wire ground-return subscriber's line which is coupled inductively to the line circuit is rung by the connection of alternating ringing current to one side and direct current to the other side of the line circuit The ringing current is extended to the line by relay 8 which is operated thereby through a gas-discharge tube 12 and is then held by the direct current, the tube being short-circuited. On a call initiated by the subscriber, the line circuit is bridged by the operation of relay 5.
Patent GB-1004242-A (GB)
Title: Heat treatment of turbine components
Inventor: MELEKA ABDOU HANNA
IPC: C22F1/00
Filed: 1963-02-16
Abstract: A turbine blade, vane or disc having holes through which cooling fluid is passed in service is heat treated so that a predetermined depth of metal surrounding each hole has a creep ductility which is different from that of the body of the component.  This is preferably achieved by subjecting the whole of the part to a suitable treatment temperature, while passing a fluid through the holes under such conditions that a desired depth of metal surrounding them is subjected to the modified heat treatment.  The invention is preferably applied through all the stages of a multi-stage heat treatment.  As particularly exemplified, parts made from the alloy sold under the Trade Name Nimonic 105 are subjected to the conventional heat treatment of solution treatment at 1150  DEG C., carbide stabilization at 1050  DEG C. and ageing at 850  DEG C., but a cooling fluid, such as air, is passed through the holes under such conditions that the walls thereof are maintained at 1100  DEG C., 950 DEG C. and 700  DEG C. respectively during the three stages of treatment.
Patent GB-217961-A (GB)
Title: Improvements relating to the separating and (or) feeding of sheets of paper or the like
IPC: B65H3/18
Filed: 1923-12-06
Abstract: 217,961. Pringle, A. Dec. 6, 1923. Frictional machines. -Sheets are separated from piles and fed to machines bv the combined action of air blasts on the edges of the sheets and of rods charged w i t h static electricity which are moved from contact with rubbing members into proximity to or contact with the sheets to be fed. As applied to a machine for feeding manifold sheets from piles on tables 17, four sets of similar rods 1 are charged with electricity while in contact with rollers 2 driven by gearing from an upper pulley 8. The rods 1 are formed of glass cores covered with sulphur, ebonite, or alternate sections of sulphur and ebonite, or the rods may be formed of hollow ebonite, or of ebonite tubes with metal cores, an air space being left between the ebonite and metal. The rollers 2 are covered with felt or the like. Earthed metal members 32, Fig. 5, adjustable about rods 9<c>, can be used to regulate the charge on the rollers 1. The rollers 2 may be electrically heated and are mounted on levers 3 connected by a link 4, which can be reciprocated by a crank 5 on a shaft 6 to raise the rollers out of contact with the rods 1. The rods 1 are simultaneously lowered on to the piles by links 8 connected to levers 9 in which the rods 1 are mounted. The levers 9 carry rods 9<c> which press on the piles and limit the positions of the rods 1 which may thus be prevented from actual contact with the piles.
Patent GB-1386382-A (GB)
Title: Ionomer golf ball cover compositions
IPC: C08L23/02
Filed: 1973-02-09
Abstract: 1386382 Golf balls QUESTOR CORP 9 Feb 1973 [11 Feb 1972] 6442/73 Heading A6D [Also in Division C3] Golf balls comprise a cone and a cover, which cover is formed from a composition comprising a mixture of at least two ionic copolymers which are copolymers of C 2-5  olefins with metal salts of unsaturated C 3-8  carboxylic acids. Preferred ionic copolymers are sodium salts and zinc salts of ethylene/ methacrylic acid copolymers. The compositions may also contain pigments and fillers, e.g. titanium dioxide, and stabilisers. The cones may be conventional solid or thread or tape wound cones.