baber/WOPTO huggingface dataset:
Patent GB-1395534-A (GB)
Title: Decoder circuit for a multi-system colour television receiver
IPC: H04N9/64
Filed: 1972-06-01
Abstract: 1395534 Colour television; transistor amplifying circuits; limiters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 June 1972 [4 June 1971] 25713/72 Headings H4F and H3T A switching system for a television receiver for the selective reception of PAL and S.E.C.A.M. signals comprises a decoder circuit 85 to which an attenuated 91 and a one line period delayed 89 chrominance signal are applied and (B-Y) and (R-Y) chrominance signals are obtained at outputs 83 and 65 respectively and fed to demodulators 123 and 133. Decoder 85 includes system (i.e. PAL/S.E.C.A.M.) changeover switches 93, 95, 111, 115 operated by hand or automatically in response to a system dentification signal derived from the received chrominance signals by a system change-over voltage generator 117. The decoder also includes a half-line frequency change-over switch 113, an adder 101 and subtractor 103 for PAL signals, and amplitude limiters 97 and 99 for S.E.C.A.M. signals. In a second embodiment, Figs. 3 and 4, not shown, the half-line frequency change-over switch signal and the system change-over switching is effected in the decoder prior to the PAL signals being fed to the adder and subtracter and the S.E.C.A.M. signals being fed to the two limiters. A detailed transistor circuit for the decoder 85 (which forms the subject matter of the claims) is described with reference to Fig. 1 and includes three transistors 1, 5 and 17 connected as shown via resistors 9 and 15 to a current source 11, a frequency modulated signal (e.g. S.E.C.A.M. signal) or an amplitude modulated signal (e.g. an amplitude and phase modulated PAL signal) being coupled to input 3. In operation when transistor 5 is rendered conductive by a control signal at its base an amplitude limited signal is derived at the collector of transistor 5 whereas if transistor 17 is rendered conductive an amplified signal is derived at the collector of transistor 17. Transistor 5 is rendered conductive when a FM signal is received and transistor 17 when an AM signal is received. The collectors of transistors 5 and 17 may be coupled together, Fig. 3 (not shown), and the output signals may be derived from the collector of transistor 1 instead of from the coupled together collectors.
Patent GB-352791-A (GB)
Title: Improvements in wireless receiving sets
IPC: H04B1/18
Filed: 1930-08-29
Abstract: 352,791. Wireless receiving apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 29, 1930, No. 25849. Convention date, Sept. 18, 1929. [Class 40 (v).] Relates to means for simplifying the tuning of a receiver where the aerial inp u t comprises a small series condenser 6 for selective purposes, and also a tuned rejector circuit 9, 10. A switch 13 is arranged so that in the open position the aerial current flows as usual through the rejector circuit 9, 10, through the small series condenser 6, and then through the tuned input 7, 8 to the point 12, which is earthed. In the closed position, however, the two tuned circuits 9, 10 and 7, 8 are coupled through a small condenser 5 in order to increase the selectivity. If the condenser 6 is then assumed to be connected in parallel with the condenser 8, the adjustment of the latter practically determines the tuning of the input as a whole. The arrangement is advantageous if the circuit 7, 8 is followed by other stages with ganged tuning control. A frame aerial may be connected in series with the condenser 5 across the input 7, 8.
Patent GB-814808-A (GB)
Title: Improvements in insulating wall structures particularly for refrigerator cabinets
IPC: F25D23/06
Filed: 1955-09-09
Abstract: 814,808. Refrigerators; heat insulation. GENERAL ELECTRIC CO. Sept. 9, 1955 [Sept. 16, 1954], No. 25886/55. Classes 29 and 64(2) In a thermal-insulating wall consisting of fibrous insulation between spaced panels, the thermal conductivity of the wall is increased by setting in motion the air or gas within the fibrous insulation in response to a predetermined controlling condition. As shown in Fig. 1, a refrigerator has low- and high-temperature compartments 6, 7 separated by an insulating wall 15, compartment 6 being cooled by an evaporator 23 and compartment 7 by cold transferred through wall 15. When the temperature in compartment 7 exceeds the desired value a thermal control 31 energizes a fan motor 17 so that air is drawn through the wall 15, the thermal conductivity of which is increased. As shown in Fig. 3, low- and high-temperature compartments 44, 45 are cooled by evaporators 53, 54 and the compressor motor is controlled in response to the temperature of compartment 45. To prevent short-cycling, and consequent inadequate cooling of compartment 44, at low ambient temperature the air in the insulation of the rear wall 63 of compartment 45 is set in motion by a fan 69 whenever the ambient temperature drops below say 50‹F. This causes flow of heat into compartment 45 and accordingly longer periods of operation of the compressor. Walls 15, 63 may be totally enclosed instead of having their interiors in communication with compartments 7, 45.
Patent GB-467658-A (GB)
Title: Improvements in aeroplane parts formed of metal
IPC: B23K20/233
Filed: 1935-09-18
Abstract: 467,658. Making composite plates, sheets, and parts of aeroplanes. HORN, M. Sept. 18, 1935, Nos. 25916 and 25917. Void. Convention dates, July 1 and Aug. 3. Drawings to Specification. [Class 83 (ii)] A composite metal for use in the manufacture of aeroplane parts comprises one or several layers of light metal, and one or several layers of heavy metal, the heavy metal layers constituting at least <1>/25 but less than ¢ of the total thickness of the multi-layer metal. The material may be used in the manufacture of supporting planes, landing flaps, tail units, control surfaces, spars, ribs, struts, propellers, external fairing, undercarriages, floating gear, flying boat bodies, fixed planes, floats, and float covers of aeroplanes. The coating material may be applied by welding or electrolytically, at least one layer being hardened by rolling or heat treatment. One layer may taper in one or more directions. The heavy metal layer may be plated with chromium or nickel. The light metal may be aluminium or electron alloy, and the heavy metal copper, brass, tombac, iron, or steel. Oval, round, or streamline tubes are formed by telescoping seamless drawn tubes. A layer of light metal may be coated on both sides with a layer of copper each constituting 5 per cent of the total thickness.
Patent GB-442783-A (GB)
Title: Improvements in apparatus for playing a game
IPC: A63F9/00
Filed: 1934-09-10
Abstract: 442,783. Game apparatus ; checking receipts; controlling sales. VARNON, C. A., and CALEY & SON, Ltd., A. J., Chapel Field Works, Norwich. Sept. 10, 1934, No. 26000. [Class 132 (ii)] [See also Groups XVIII and XIX] Apparatus from which tokens of different value can be punched for an entrance fee, of the type described in Specifications 380,961 1 and 413,986, has incorporated with it a board 50 having affixed, applied or printed, to or on it, a map, chart or list of Christian names or names of flowers giving inductions or clues as to the positions in the punch board 2 of the more valuable tokens 3. The map &c. is drawn to scale in relation to the punch board 2, the scale being indicated on the apparatus. The tokens 3 comprise balls, cubes, cones, cylinders or rods and have a shape and/or colour which indicate the values of articles obtainable in exchange therefor. Easily pierceable sheets 3<1>, 3<11> of paper are positioned over and under the board 2 and with the tokens 3 form a unit which is removably held in position on shoulders 1<1> in the casing. A short rod or punch 5 with a handle 6 is provided for punching out the tokens which fall on to the inclined plate 51 down which they pass through the aperture 52 to the tray 53, or the tokens after ejection may be delivered as described in Specifications 380,961 and 413,986.
Patent GB-736154-A (GB)
Title: Improvements in suction cleaners for carding engines
IPC: D01G15/76
Filed: 1952-10-17
Abstract: 736,154. Cleaning arrangements in carding- engines. WRIGHT, A. W. Oct. 16, 1953 (Oct. 17, 1952], No. 26045/52. Class 120(3). Dust, fly, and loose fibres within a carding- engine are removed by suction through ducting mounted adjacent the feed and delivery ends of the main cylinder to a rotary filter cylinder from which it is stripped by a roller to fall into a collector or waste box or to be fed back to the machine. In the revolving flat cotton carder shown, a ducting A, mounted between taker-in 1 and flats 4 where the latter pass over roller 5, is formed with a V-shaped chute having a slot through which dust, &c. is withdrawn, Fig. 6 (not shown) : a ducting B for removing dust &c. from the main cylinder 2 is arranged between and replaces some of grid bars 8, and also has an adjustable slot, Fig. 5 (not shown) : a ducting C has a slot on its underside for removal of dust &c. from the doffer 3. All ductings communicate through trunking D<SP>1</SP> with a fan chamber D in which fan blades D<SP>2</SP> are rotated by belts or chains from pulleys d2 and d<SP>3</SP> to deliver the waste material to a rotary perforated drum filter E a cylinder El of which is driven by chains e, e<SP>3</SP>, through sprockets e<SP>1</SP>, e<SP>2</SP>, e<SP>4</SP>, from a roller 5. A stripping roller E<SP>2</SP>, covered with leather and rubber flaps or wipers and driven from the card flaps through a belt e<SP>5</SP>, removes the dust and loose fibres which fall or are blown by an air stream Y into a collector or into trunking E<SP>2</SP> by which it is delivered onto the lap passing from roll 6 to taker-in 1 : a plate E4 blanks off the perforations in the cylinder E<SP>1</SP> in the stripping area.
Patent GB-425765-A (GB)
Title: Improvements in devices for holding utensils on tables or similar surfaces
IPC: A47G29/093
Filed: 1933-09-21
Abstract: 425,765. Securing bowls &c. to tables &c. HUNTER, A. H., 23, Warrington Crescent, Maida Hill, London. Sept. 21, 1933, No. 26065. [Class 86] A device for securing a mixing bowl or other similar utensil to a table comprises a cup-shaped member 10 made of rubber or provided with friction surfaces on its inside and secured to the table by a clamp 16 entering a slot in the base, or by a suction cup. The bowl is secured in the member by friction.
Patent GB-1475774-A (GB)
Title: Tertiary-alkylamino-lower acyl-xylidide local anesthetics
IPC: C07C231/12
Filed: 1974-06-12
Abstract: 1475774 Local anaesthetics ASTRA PHARMACEUTICAL PRODUCTS INC 12 June 1974 [12 June 1973] 26088/74 Heading A5 [Also in Division C2] Anaesthetic compositions comprise 2-(N-nbutyl-tert.-butylamino)-2', 6'-acetoxylidide, or a pharmaceutically acceptable salt thereof, together with a pharmaceutical carrier. The compositions may also contain 2-(N-tert.-amylamino)-2', 6'-acetoxylidide and/or the biotoxin, saxitoxin, and/or a vasoconstrictor.
Patent GB-204525-A (GB)
Title: Improvements in and relating to poultry and the like houses
IPC: A01K31/22
Filed: 1922-09-28
Abstract: 204,525. Paine, A. H. Sept. 28, 1922. Poultry houses.-The front of the house has wire netting 5 extending along its upper portion and below this netting is normally closed except for the door by wooden frames 6 slidable in guides 7. The door 8 forms the middle part of the front wall and is hinged so that it may be folded down to a sloping position to rest on the ground. The floor 4 is covered, preferably on its under surface, with a layer or layers of wire netting. The interior of the house may be divided by partitions having springs adapted to be carried by slides leading to the door of the house. Hinged flaps 12, secured to the top of the house at the front, may be moved into position to cover partially or wholly the wire netting 5.
Patent GB-535064-A (GB)
Title: Improvements in and relating to alkylation processes for the production of motor fuels
IPC: C07C2/62
Filed: 1939-09-21
Abstract: 535,064. Hydrocarbons. STANDARD OIL DEVELOPMENT CO. Sept. 21, 1939, No. 26363. Convention date, Nov. 25, 1938. [Class 2 (iii)] Hydrocarbons for use as motor fuel are prepared by reacting isoparaffins with normallygaseous mono-olefines in the presence of concentrated sulphuric acid containing an oxide of an element of Group V. The reaction is effected at temperatures between 0‹ and 120‹ F. and under excess pressure varying from 0 to 1,200 lb. per square inch ; it may be operated batchwise or continuously. Instead of the olefines, their polymers or co-polymers of low molecular weight may be used. Preferably the isoparaffin is in substantial molecular excess over the olefine, ratios being mentioned of between 2 : 1 and 30 : 1. Isobutane and isopentane are specified as suitable isoparaffins .and ethylene, propylene, n-butylenes and isobutylene as olefines. Reference is made to the pentoxides of phosphorous, vanadium, nitrogen and arsenic, and mixtures thereof, for addition to the sulphuric acid ; thus, from 0.5 to 20 per cent. phosphorous pentoxide may be added to sulphuric acid of 70-108 per cent. concentration. A table is given in which the results of experiments employing sulphuric acid containing vanadium pentoxide or varying amounts of phosphorus pentoxide as catalysts for the alkylation of isobutane with isobutylene, n-butylene or diisobutylene, are contrasted with the results obtained when sulphuric acid or phosphorus pentoxide alone is used as catalyst. Specifications 479,345 and 479,827 are referred to.
Patent GB-774657-A (GB)
Title: A process for the preparation of surface treated materials
IPC: C25D7/06
Filed: 1955-09-15
Abstract: 774,657. Making strip. AKTIESELSKAPET NORDISK ALUMINIUMINDUSTRIE. Sept. 15, 1955 [Sept. 15, 1954], No. 26417/55. Class 83 (2). In making a surface-treated metal strip, e.g. lacquered, anodized or chemically surfacetreated aluminium, from a wider strip, subsequent division of the wider strip is facilitated by forming a weakening line before the surfacetreating.
Patent GB-601887-A (GB)
Title: A new or improved fuel economiser
IPC: F24B1/193
Filed: 1945-10-10
Abstract: 601,887. Fuel economisers. JORDAN, J. Oct. 10, 1945, No. 26426. [Class 126] A fuel economiser in the form of a basket 1 for containing slack is supported above the ordinary burning fuel C in the fireplace by feet 2 resting on side firebricks 3 and is wider at the top than at the bottom so that the front wall 4 projects forwardly over the fuel C. The basket is built up of front, back and end plates of cast or wrought iron secured together by bolts, the front and back plates 4, 5 being slotted at 15, 16 and the end plates 6, 6<1>, which converge from front to rear to fit the fireplace opening, are formed integral with the feet 2.
Patent GB-1500277-A (GB)
Title: Detent component
IPC: F16B2/02
Filed: 1974-06-14
Abstract: 1500277 Mechanical switches LUCAS ELECTRICAL Ltd 27 May 1975 [14 June 1974] 26433/74 Heading H1N [Also in Division E2] A detent component suitable for use in latching a push-push type of electric switch comprises a holder 11, Fig. 1, to be fixed to one of the relatively movable parts and carrying a cam follower in the form of a hair pin spring 16 with its arms 18, 19 extending in the direction of motion, one arm 18 having a bent-up end 17 engageable with the cam track (not shown). The spring 16 has a central loop 21 engageable over a lug 13 and retained on the lug by clipping the arms 18, 19 under lugs 22. Abutments 14, 15 normally retain the arm 18 parallel to the direction of motion.
Patent GB-233990-A (GB)
Title: Improvements in the production of multi-colour screen-film positives
IPC: G03C7/06
Filed: 1924-02-15
Abstract: 233,990. Thornton, J. E. Feb. 15, 1924. Addition to 224,569. Colour photography; kinematograph picture films. - A four-colour or three-colour kinematograph or other built-up positive of the kind described in the parent Specification comprises two component film strips cemented face-to-face or back-to-back each carrying a component twocolour image of the screen-filter class. The negatives employed in printing upon the component strips may be of the full-tone variety in a four-way group on a panchromatic film as in the parent Specification; or of the screen-filter variety produced as a pair of two-colour negatives as in Specification 224,572, on the negative film-stock of single or preferably double width described in Specification 224,571. The positive images are printed on the thin positive filmstock, of single or preferably double width, described in Specification 224,571, either by contact or by projection, or by projecting enlarged images upon a translucent screen and copying them. The film strips may be mounted in known manner on endless bands for development and may, for this operation, be cemented temporarily back to back. The component positive film strips are cemented together by known methods, or as described in Specification 232,302. Specification 224,570 also is referred to.
Patent GB-927499-A (GB)
Title: Spectacle frames
IPC: G02C1/06
Filed: 1960-07-30
Abstract: 927,499. Spectacle frames. F. O. WHEWAY. June 21, 1961 [July 30, 1960], No. 26619/60. Class 97 (1). A spectacle frame having a bridge portion brow bars and lens retaining means so assembled that there is a gap between the brow bars and the associated lenses, comprises a lens engaging member resiliently connected to the bridge portion and engaging at least that part of the periphery of the lens disposed on the opposite side of the lens to the associated brow bar. As shown, a bridge portion 10 has brow bars 11 and a wire lens engaging member 15 which is of U-form and which is connected to the bridge portion. That portion of the lens adjacent the brow bar may be held in position by a thread, e.g. of nylon. The wire lens engaging member may be extended to engage the brow bar and be fixed thereto by rivets.
Patent GB-759618-A (GB)
Title: Lawn sweeper
IPC: A01G1/12
Filed: 1953-09-28
Abstract: 759,618. Lawn-sweepers. HOLTER, A. (Parker Sweeper Co.). Sept. 28, 1953, No. 26633/53. Class 6 (2). A lawn-sweeper comprises, in combination, a sweeper frame 10 carried on a pair of wheels 16 and including a rotatable brush 25 which is driven by gearing from the wheels, the frame being additionally supported upon rollers 101 which are carried by a member 65 pivoted at its front end to the frame and connected at the rear to a handle 55 on the frame by springs 70 which urge the handle upwardly, the member 65 forming the base of a debris-receptacle 67 the other walls of which are of canvas and serve to limit the upward movement of the handle by the springs 70. The frame 10 comprises side-plates 11, 12 which are spaced apart by cross-bars 27, 28 and by the axle 24 of the .brush which passes through the side-plates and engages gears carried by the stub-axles 13 of the wheels, the gears being rotated by ratchets from the wheels. A curved sheet-metal deflector 32 surrounds the brush and is held between arcuate shoulders 29 on the side-plates and the two cross-bars 27, 28. The handle 55 comprises a U-shaped frame pivoted to the stub-axles and connected to the frame by slotted brackets 46 which permit the brushheight to be varied by rotation of the frame about the axles. The debris-receptacle includes rods 75, 76 within the hems of the canvas sides and back, these rods being received in fastenings 51, 80 on the handle. The handle may be telescopic. Specification 759,676 is referred to.
Patent GB-245241-A (GB)
Title: Improvements in and relating to belt pulleys
IPC: F16H55/44
Filed: 1924-11-07
Abstract: 245,241. Pirwitz, E. Nov. 7, 1924. No Patent granted (Sealing fee not paid). Pulleys.-In a split belt pulley of the kind in which the divided rim a is supported upon the outwardly flanged peripheries of divided lateral supporting walls b, b<1>, the joints of the rim and supporting walls are offset to one another so that the rim of each half of the pulley is supported on the walls of the other half by the amount of the offset portion. The edges of the supporting walls have beadings or rolled-over portions 3 engaging beaded edges 4 of the rim, the greater part of the width of which is supported by the walls. The joints of the rim and supporting walls are displaced by the distance 8 with respect to each other so that projecting tongues 3<1> are formed which fit into recesses 4' in the projecting ends of the rim edge 4. The hub consists of two trough-shaped halves which permit of any size bore of the hub up to a diameter corresponding to a distance between the fastening bolts. The halves are welded to the inner surfaces of the supporting walls and have semi-cylindrical bushes 11 with ribs 10 extending radially outwards so as to engage in the joints of the pulley halves on being put together. A number of transverse walls 9 may be welded between the supporting walls.
Patent GB-818833-A (GB)
Title: Improvements relating to methods of work hardening steel rods and wires
IPC: B21C1/16
Filed: 1957-08-26
Abstract: 818,833. Making reinforcing rods; altering physical structure. HUFNAGL, W. Aug. 26, 1957 [Aug. 27, 1956], No. 26856/57. Drawings to Specification. Classes 83 (2) and 83 (4). A process for the production of high tensile steel rods or wires for reinforcing concrete from steel rods or wires of lower tensile strength is characterized in that the tensile strength of the rods or wires is increased by cold working in two stages, in the first of which the rods, or wires are drawn to reduce their diameter and in the second of which the rods or wires are provided with projections or recesses on their surfaces to increase the bond between the rods or wires and the concrete. In an embodiment reinforcing steel rod or wire for making welded mesh reinforcements is first reduced by 15- 30 per cent of its original cross-section by drawing and then cold rolled to provide a further reduction of 5-15 per cent and to impart transverse rib-like projections to the rod or wire. The height of these projections is approximately 0.05 times the diameter of the finished rod and does not exceed 0.3 mm. and the width of each projection is approximately 1 mm.
Patent GB-663148-A (GB)
Title: Improvements relating to dissolving or softening polyvinyl compounds
IPC: C08K5/06
Filed: 1949-10-19
Abstract: Methylal is used as solvent or softening agent for polystyrene, polyvinyl acetate, polymethyl acrylate, polyvinyl formals, acetals and butyrals and butadiene-styrene copolymers.  It may be used in the preparation of coating compositions and adhesives containing these polymers or for making products such as filaments, ribbons, films and sheets by dry or wet spinning processes.  Plasticizers may be introduced as solutions in the methylal or the polymer may be sprayed with the plasticizer solution and worked on rollers. The methylal may be used for bonding sheets of the polymers together or to other materials and compositions of the polymers and methylal with or without diluents, e.g. acetone, methyl acetate, benzene and dioxane, may be used for bonding materials such as paper, wood, glass, cloth, metal and leather.  The methylal may be incorporated in a printing ink or applied as a softening agent, followed by the application of pigments, tinsel or flock or by local shaping or embossing to produce decorative effects.