baber/WOPTO huggingface dataset:
Patent GB-222187-A (GB)
Title: Improvements in electric retardation lines
IPC: H03H7/32
Filed: 1923-06-21
Abstract: 222,187. Jackson, W. J. Mellersh-, (Submarine Signal Corporation). June 21, 1923. Directive signalling. - Relates to retardation lines for use, in directional receiving apparatus of the kind described in Specification 146,193, and consists in an arrangement of inductances and capacities such that currents of widely different frequency will be equally retarded in passing from A to B. The series inductances 3, shunted by capacities 4, are so designed that the mutual capacity between two adjacent coils is about onetenth of the self-inductance of each coil. A mathematical analysis given in the Specification obtains a relation between the phase retardation per section of the line and the angular velocity defining the period of a pure vibration, and by applying the condition that these quantities must be proportional over a wide range the above relation between mutual and self-inductance is derived. The condition mentioned implies that the speed of propagation is independent of frequency.
Patent GB-1491565-A (GB)
Title: Brake booster
IPC: B60T13/57
Filed: 1975-04-18
Abstract: 1491565 Vacuum servo brakes AISIN SEIKI KK 18 April 1975 [19 April 1974] 16230/75 Heading F2F A brake booster unit having a housing 1 comprising front and rear shells 2, 3 and a diaphragm 4 separating the interior space into a vacuum chamber 9 and an atmospheric pressure chamber 17 has a first valve formed between a push rod 20 connected to a pedal 23 and a sleeve member 13 for on-off control of fluid communication between chamber 17 and the ambient atmosphere and a second valve including a beaded inner periphery 4b of the diaphragm acting as a valve seat and a valve member portion 13d formed on the sleeve 13 and having a configuration for the prevention of radial displacement of the beaded periphery when the unit is in operating position. A projection 20a on rod 20 co-operates with a seat 25 on the sleeve. When the brake pedal 23 is depressed rod 20 is moved to close a valve passage 102 between the bead 4b and member 13d to interrupt communication between chambers 9 and 17 followed by separation of projection 20a from its seat 25 to allow atmospheric air into chamber 17 while chamber 9 remains connected to the intake manifold 12 of the vehicle engine and the diaphragm is thus moved by differential pressure.
Patent GB-260017-A (GB)
Title: Improvements in or relating to gramophones, pathephones and the like, adapted to play a plurality of records in succession
IPC: G11B17/16
Filed: 1925-06-23
Abstract: 260,017. Cumming, M. W. Gordon-. June 23, 1925. Multiple machines.-Relates to gramophones and the like adapted automatically to play a number of records in succession. According to the invention, the sound-box is raised and, with the tone-arm. swung clear of the turntable, after a record has been played, by means actuated by the weight of the next record to be played. In the construction shown, the records are supported in an inclined position, between a worm 9 and a support 20, the worm 9, which has a gap 9<a> being rotated by the gramophone motor or otherwise so as to make one revolution each time a record is played. The driving mechanism shown comprises an eccentric 13 on the motor spindle 14, engaging a lever 11 which drives through a pawl 10 a ratchet wheel 8 secured to a flexible shaft 7 on which the worm 9 is mounted. When a record is released by the movement of the worm, after a record on the turntable has been played, it falls and depresses an arm 4 secured to the goose-neck 2. The sound-box is thereby raised until a stop-pin 6 on the arm 4 engages the tone-arm. The record then falls on to an extension 5 of the arm 4, causing the tone-arm to swing outwards until the arm 4 engages a stop 18 on the underside of am inclined plate 16. Guided by a rod 22, the record falls on to the turntable, and the weight of the sound-box and gooseneck thereupon causes the upper end of the arm 4 to move along the inclined plate 16, until the arm meets a cam 19 secured to the worm 9. The sound-box has then moved over to the starts. ing position on the record, and as the arm 4 is gradually released by the cam 19 the needle is gently lowered on to the record. The Provisional Specification also describes two modifications of the mechanism by which the sound-box is held in the raised position, after being swung clear of the turntable, and afterwards lowered on to the next record. It also refers to the provision of a bell-crank lever for automatically removing a played record from the turntable.
Patent GB-1169496-A (GB)
Title: Detergent Compositions.
Inventor: BEST PETER
IPC: C11D1/72
Filed: 1968-04-04
Abstract: 1,169,496. Detergent compositions containing ether carboxylic acids. UNILEVER Ltd. 4 April, 1968 [7 April, 1967], No. 16288/68. Heading C5D. A detergent composition comprises an anionic synthetic detergent, a nonionic detergent and/or a soap, and a compound of the formula wherein R is a branched or straight chain aliphatic hydrocarbon residue having 8-24 carbon atoms, a mono- or di-alkyl aryl residue totalling 6-30 carbon atoms in the alkyl group(s), or an alkyl amine residue having 8-24 carbon atoms, or an acyl amide residue, wherein the acyl group has 8-24 carbon atoms; R<SP>1</SP> is is -C 2 H 4 - or - C 3 H 6 - or a mixture thereof, n is a number from 1-40 and m is an integer from 1-3; or a salt thereof formed from the acid and an inorganic or organic base. The anionic detergent may be any of the usual sulphate or sulphonate surfactants, suitable nonionic detergents are alkylene oxide condensates with fatty alcohols, alkyl phenols, fatty acid amides, polyalkylene glycols and alkoxylated sugar fatty acid esters, and the soaps used are the alkali and alkaline earth metal salts of fatty acids having 10-24 carbon atoms. The compositions preferably contain 2-20% of anionic synthetic detergent, 1-10% nonionic detergent and/or 1-10% soap, with 0À5-10% of the ether acid or its sodium salt. Generally built compositions are used, containing from 20-60% of conventional inorganic or organic builders, for heavy duty detergents up to 45% of sodium perborate may be added. Other conventional additives may be included in the composition.
Patent GB-439196-A (GB)
Title: Improvements in chains
IPC: F16G13/18
Filed: 1934-06-01
Abstract: 439,196. Driving-chains. HARCOURT, B. W., and MANN, A. J., c/o Harcourt, Ltd., Theodore Street, Birmingham, and HUGHES, B. D., c /o Rhodes Chains, Ltd., 22, Newman Street, Oxford Street, London. June 1, 1934, No. 16384. [Class 24] Chains of the type which are free to flex in one direction but are capable of resisting pressure tending to flex them in the opposite direction are formed of flat links 1, 2, provided with tongues 4 on one edge which are inclined out of the plane of the links. When assembled the tongues on the outer links are disposed to incline inwardly and those on the inner links outwardly so as to abut against each other at their ends.
Patent GB-1040834-A (GB)
Title: Improvements in or relating to structures and joints therefor
IPC: A47B47/02
Filed: 1963-04-25
Abstract: 1,040,834. Tables, stands, &c. M. PIGET. April 25, 1963 [April 25, 1962], No. 16411/63. Heading A4H. [Also in Divisions E1 and E2] Structural members, of which one is a channel, are connected by a clamping plate 5a having screws 4 adapted to be engaged in thes angle between the side 1 of the channel and the base 2 to force the plate against the other side 3 and secure it to the channel. Two channels 17, 18 are connected together by a clamping plate consisting of two arms at right angles each connected by screws 4 to one of the channels. Different channels and different ways of securing them with such a rightangle plate are shown. Channels may be connected by metal gussets clamped in each channel by a clamping plate, Fig. 11 (not shown). A sheet 15, Fig. 12, has a flange 19 clamped inside a channel 16 on the edge of another sheet by means of a plate 14 and screws 4.
Patent GB-624357-A (GB)
Title: Improvements in or relating to means for feeding ammunition to automatic firearms
IPC: F41A9/56
Filed: 1945-06-27
Abstract: 624,357. Automatic guns. BRISTOL AEROPLANE CO., Ltd., WOTTON, J., and FONSECA, E. C. M. D. June 27, 1945, No. 16430. [Class 92 (ii)] The supply of cartridges to one or a pair of machine or cannon guns 2a, 2b is maintained by a cartridge-belt fed from a box 4 to a stripping mechanism 1, the separated cartridges passing to the gun or guns through one or both of the expanding and contracting shoots 3a, 3b. The shoots each comprise fixed arcuate cylindrical portions 8a, 9a joined by chordal or like passages 12a on a spring-rotated drum 14a having fins 15a, 16a which traverse the arcuate portions. The shoot members are provided in the forked passages 6a, 6b arranged as in Specification 624,356 and leading from a single stripper mechanism 1 as described in Specification 598,658. The motor causing rotation of the stripper mechanism is controlled by switches arranged in parallel and opened when the shoot 3a expands to the limit shown on the left of the Figure. During a burst of gun fire, either shoot, under the action of a spring 20a or 20b, may contract to the position shown on the right of the Figure. Specifications 583,360 and 624,354 also are referred to.
Patent GB-884378-A (GB)
Title: Improvements in or relating to collapsible tent frame structures
IPC: E04H15/48
Filed: 1959-05-13
Abstract: 884,378. Tents. PELLETIER, H. L. M. May 13, 1959 [July 7, 1958], No. 16438/59. Classes 20(1) and 20(2) A collapsible tent framework comprises rafters 8 pivoted at 24 to each other and at 26 to uprights 10 and connected horizontally by purlins 32, all the members being of the section shown in Fig. 1, via a channel 1, the ends 7 of which have been folded over another channel 2. Uprights 10 and rafters 8 are held open by a pivoted stay 30 and stays 20 are provided between the end purlins 14 and the uprights 10. The purlins have a stud 33 which engages in a slot 29, a spring loaded pin 34 locking in a hole 38.
Patent GB-697500-A (GB)
Title: Improvements relating to ice cream wafer holders
IPC: A23G9/28
Filed: 1951-07-12
Abstract: 697,500. Ice cream wafer holders. JAMES, A. Oct. 25, 1951 [July 12, 1951], No. 16498/51. Class 28 (i). An ice cream wafer holder 10 comprises a tray with a fixed member 11, by which it is held, and a movable bottom, e.g. a plate 13, connected to and operated by a lever 16, 18 which is squeezed against the fixed member. As shown, member 11 is tubular and has an internal flange 11a against which is located a spring 12 whose other end engages plate 13. Plate 13 has a tubular extension 14 which passes through member 11 and spring 12 and is engaged by lever 16, 18 which is pivoted to a bracket extension 15 of member 11 by pin 17. Thus, on pressing end 18 of the lever, the bottom 13 is retracted against the spring 12. Pivot pin 17 may be withdrawn to allow the holder to be dismantled for cleaning. The Provisional Specification also describes lever operated rack and pinion elements for rotating a worm wheel in contact with a sleeve attached to a movable bottom.
Patent GB-1000443-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D75/28
Filed: 1963-04-26
Abstract: 1,000,443. Cigarette cartons. D. T. N. and MOLINS ORGANISATION Ltd. April 13, 1964 [April 26, 1963], No. 16541/63. Headings B8C and B8P. A sheet 1, which is to be folded to form a carton (Fig. 1) has a strip of material 2 attached to an edge 3 (Fig. 2), the strip forming a top 12 to the carton. The strip is preferably of contrasting appearance and if duplex laminated paper is used for the sheet 1, the strip 2 may be of similar material the ether way up. The sheet 1 may be made of paper, foil, sheet plastics or plastics impregnated paper and the strip adhered to it by adhesive crimping heat sealing or ultrasonically.
Patent GB-595569-A (GB)
Title: Improvements in and relating to pressure-sensitive adhesive masses
IPC: C09J7/02
Filed: 1945-06-28
Abstract: A factice having an acetone extract value of over 30 per cent is made by heating soya bean oil with sulphur and a glyceryl ester of hydrogenated abietic acid at 290 DEG F.ALSO:A pressure-sensitive adhesive for adhesive tapes comprises polyisobutylene, a tackifying agent and a factice.  Optional additions include natural or synthetic rubber, e.g. butadienestyrene copolymer; fillers, e.g. hydrated alumina, which may have been surface-coated with stearic acid, titanium dioxide, zinc oxide, calcium carbonate, starch; plasticisers, e.g. mineral oil, petrolatum, lanolin, beeswax, low molecular weight polyisobutylene; antioxidants, e.g. alkylated polyhydroxyphenol. The tackifying agent may be ester gum, b -pinene polymer, hydrogenated abietic acid or its glyceryl ester or hydrogenated coumarone-indene resin.  Suitable factices are rape seed oil factice and that made by heating soya-bean oil with sulphur, with or without a glyceryl ester of hydrogenated abietic acid.
Patent GB-1484000-A (GB)
Title: Package winding machine
IPC: B65H54/64
Filed: 1976-04-23
Abstract: 1484000 Flyer type winding devices CROON & LUCKE MASCHINENFABRIK GmbH & CO KG 23 April 1976 [2 May 1975] 16551/76 Heading DID A winding machine comprises at least two spindles having flyers 3 which are rotatable and axially displaceably mounted in a driven hollow shaft 7 which is connected to the flyer 3 for rotation therewith, and drive members 25 engaging the flyers by way of rotary bearings 23 for axially displacing the flyers in unison by means of a common drive 31 operating parallel to the rotational axes of the flyers. The rotary bearing 3 may be connected to guide forks (Fig. 3 not shown), the guide fork being adjustable parallel to the rotational axis of the flyers 3 by a guide rail 27. The drive connection between the driven hollow shaft 7 and the flyer 3 may be via a cranked forked arm 13 mounted on the hollow shaft 7.
Patent GB-592042-A (GB)
Title: Improvements relating to fluorescent lighting systems
IPC: H05B41/18
Filed: 1944-08-31
Abstract: 592,042. Supply systems for space discharge apparatus. MANDL, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 31, 1944, No. 16568. [class 38 (iv)] In a fluorescent lighting system comprising a a plurality of lamps connected for supply from a variable voltage alternator, a master switch is operable to produce an inductive voltage across the lamps for starting. In the arrangement of Fig. 1, for lamps with " cold " electrodes, the alternator A.C. is short-circuited by switch S, which is opened, after the alternator has been excited, to produce an inductive starting voltage across lamp circuit C<1>, L1; C2, L2; C3, L3, &c. The alternator excitation from a constant voltage A.C. supply B is controlled by a regulator R, the actuating coil of which is energized by D.C. derived from a " dummy " lamp circuit CD, RD, such as to maintain constant voltage across the lamps during normal operation. Condenser C may be included to compensate for alternator internal inductance. Lamps L1 ... L4 of the preheated filament type (Fig. 2), have their filaments connected in series with transformers T1 ... T4, the secondaries of which are connected in series, parallel, or series-parallel through a master switch S, which is closed to heat the lamp filaments. When switch S is opened an inductive starting voltage occurs across each lamp. The circuit for the actuating coil of regulator R which is energized from the current transformer T includes an auxiliary switch AS opened with the switch S to increase current in the coil and reduce the alternator voltage for normal running.
Patent GB-396911-A (GB)
Title: Improvement in water valve for rock drills
IPC: E21B21/01
Filed: 1932-06-11
Abstract: 396,911. Rock - drill flushing-gear. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, New Jersey, U.S.A. June 11, 1932, No. 16612. Convention date, April 28. [Class 124.] The supply of water from the water inlet Y to the water chamber U within which the water tube terminates, is controlled by a needle valve r urged by a spring s in a recess in a plunger h, which is moved against a spring r to close the valve, when the main throttle K is closed, by the action of a cam k formed on the stem of the throttle valve. The spring v opens the valve by moving the plunger when the throttle is opened. A seating p on the plunger forms a second valve to prevent leakage when the valve r is open.
Patent GB-1096773-A (GB)
Title: Improvements in magnetohydrodynamic installations
IPC: H02K44/08
Filed: 1965-04-20
Abstract: 1,096,773. MHD power plant. SOCIETE GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). April 20, 1965 [April 20, 1964], No. 16621/65. Heading H2A. In a MHD generator installation a fraction of the exhaust gases is mixed with additional fuel and after seed removal is burnt in an independent heat exchanger which is used to heat the fuel supplied to the combustion chamber of the generator. As shown, fraction 3 of the exhaust gas is mixed with fuel at 4 and passed, after seed removal at 7, into combustion chamber 9 where it is burnt with air which has been preheated at 18 by the remaining generator exhaust gas 3<SP>1</SP>. The hot gases produced are used to heat the circulating particles in heat exchanger 10 and are exhausted through gasturbine 12 to atmosphere. Heat exchanger 10 has two stages 21, 22 for heating the fuel and air supplies to the generator combustion chamber respectively. The fuel is introduced at 25 and mixed with a gasifying agent at 26 and preheated at 17, by the remaining generator exhaust gas 3<SP>1</SP>, before passing through chamber 21 and being supplied to the generator combustion chambers at 29, 30, 31. The combustion air after heating in chamber 22 is supplied to the generator combustion chamber at 24. Residual heat in exhaust gas 3<SP>1</SP> is used to raise steam in boiler 19 for driving turbogenerator 33, 34. Seed is supplied to the generator at 35, 36.
Patent GB-285302-A (GB)
Title: Improvements in or relating to a card cloth having a felt backing
IPC: D01G15/86
Filed: 1927-06-23
Abstract: 285,302. Otto, W. April 19, 1927, [Convention date]. Cards, wire.-A card cloth having a felt backing is provided with a covering layer of vulcanized rubber. The rubber 3 is mounted on a layer of loose or porous cotton cloth 4, and is vulcanized thereon. The vulcanized covering layer is secured to the felt backing 2 by means of rubber solution, cement. or other adhesive.
Patent GB-1031634-A (GB)
Title: Xerographic powder filter
IPC: G03G21/10
Filed: 1963-04-29
Abstract: 1,031,634. Boxes. RANK XEROX Ltd. April 29, 1963 [Aug. 1, 1962], No. 16696/63. Addition to 984,763. Heading B8P. [Also in Divisions B1 and G2] A filter bag 25, Fig. 1, for cleaning toner particles from air in an exhaust system of xerographic apparatus, comprises an inner wall 28, Fig. 4, of fibre glass loosely assembled into a mat, the density of which progressively increases throughout its thickness and an outer wall 30 of fibre glass loosely assembled into a mat of substantially uniform density of between ¢ 1b. to 1 1b. per ft.<SP>3</SP> to form a self-sustaining structure, the maximum density of the wall 28 being not greater than that of the wall 30. A single mat of fibre glass may be used having two portions which correspond respectively to the walls 28, 30. The latter have formed therein inlet passages 71a and 71, and two collars 72, 73 of cardboard and having passages 74 therein are secured to opposite faces of the wall 30, e.g. by staples, so as to encircle the passage 71. The filter bag 25 is enclosed in a box 18 which is connected to an exhaust fan 19 by means of a conduit 20, the box having secured thereto a hood 16 in which is rotatably disposed a brush 14 for cleaning a plate drum 10 of the xerographic apparatus; the brush in turn is cleaned by a bar 15 mounted within the hood 16. The latter is provided with an exhaust duct 17 which extends into the box 18 and is frictionally engaged by the collars 72, 73.
Patent GB-581057-A (GB)
Title: Radio pulse receiver system
IPC: G01R29/027
Filed: 1944-09-01
Abstract: 581,057. Pulse modulation; radiolocation. STANDARD TELEPHONES & CABLES, Ltd. Sept. 1, 1944, No. 16740. Convention date, Sept. 9, 1943. [Class 40 (v)] For improving the signal-to-noise ratio in a radio pulse receiver, the wanted pulses and intervening noise pulses are applied to a filter passing substantially only a single harmonic component of the pulse train, followed by means for limiting such component to a single halfoscillation. The pulses pass from a radio receiver and detector 11 to a resonant circuit 14 tuned to the single frequency component, and the resulting oscillation therein due to the desired pulses is restricted substantially to a single half-oscillation by the rectifier 17. The resonant frequency may be between 55 and 330 kc., and the Q of the circuit between 20 and 50. The narrower strip-sided noise pulses do not substantially excite the circuit 14, and the minor ripples caused thereby may be removed by a back-biassed clipper valve 20. The desired pulses retain their relative amplitude and may be broadened by a device 22 similar to the device 14, 17, but resonant at a lower frequency. The output is taken to an indicator 21 which may be a cathode-ray tube when the receiver forms part of an obstacle-detection system, or to a signal reproducer if the pulses are signal-modulated. The resonant circuit 14 may be replaced by a sharp filter.
Patent GB-568750-A (GB)
Title: Improvements in or relating to contact spring sets for electrical switching devices
IPC: H01H50/56
Filed: 1943-10-13
Abstract: 568,750. Contacts. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., FRYDMAN, E., and SEIFLOW, G. H. F. Oct. 13, 1943, No. 16760. [Class 38 (v)] A contact spring set for a relay is made up of contact springs 6 separated by insulating spacers 7, each spacer being provided on each side with a layer 8 of thermoplastic material which, as the result of heat treatment after assembly, has fused and sealed the set against ingress of moisture. The set is clamped between plates 9, 10 by a screw 11 which is first preferably coated with insulating varnish. Later the set is fixed to a member 4 of the relay by screws 12, 13.
Patent GB-972579-A (GB)
Title: Semi-trailer crane
Inventor: HALLSWORTH ARNOLD
IPC: B66C23/36
Filed: 1961-05-09
Abstract: 972,579. Trailer mounted jib cranes. STEELS ENGINEERING PRODUCTS Ltd. April 30 1962 [May 9, 1961], No. 16770/61. Heading B8B. A jib crane 11 mounted on a trailer 16 is counterbalanced by the full weight of a towing vehicle 10 by being attached thereto by a jib 12 in addition to a towing point 25. The jib 12 is mounted on the towing vehicle forward of the rear axle 26 and is attached to the jib 11 by a pin-and-slot connection 13, 23 to avoid compressive strains. When not in use the crane is towed by an eye 19 at the tip of the jib 11. The jib 11 is raised into operative position by the jib 12 and the connection 25 is then made. Any rigid or flexible tie means may replace the jib 12.
Patent GB-1502029-A (GB)
Title: Pitting resistant stainless steel alloy having hot-working characteristics
IPC: C22C38/44
Filed: 1976-04-26
Abstract: 1502029 Stainless steel ALLEGHENY LUDLUM INDUSTRIES Inc 26 April 1976 [25 April 1975] 16773/76 Heading C7A An austenitic stainless steel contains Ni 20-40 Cr 14-21 Mo 6-12 Nb 0-1 V 0-0À5 C 0-0À2 Mn 0-2À0 Ce 0À01-0À2 Ca 0À005-0À05 Fe Bal with impurities i.e. S, 0À006 max, P, Al, N 2 , O 2  Ti and may be hotrolled with a finishing temperature of 1800-2000F (980-1090C) to give material with minimal edge cracking and a high resistance to pitting corrosion.