baber/WOPTO huggingface dataset:
Patent GB-846998-A (GB)
Title: Improvements in rotational field radio beacons
IPC: H01Q3/24
Filed: 1958-03-05
Abstract: 846,998. Aerials; radio navigation. SVENSKA AKTIEBOLAGET GASACCUMULATOR March 5, 1958 [Sept. 4, 1957], No. 7063/58. Class 40(7). Relates to radio beacons which transmit a rotating bearing signal in a directional beam and a rotating covering signal in a figureof-eight pattern: according to the invention a single aerial system used to radiate both signals comprises a ring of parallel equi-spaced dipoles enclosing reflecting elements the dipoles being fed via a commutator such that the bearing signal energizes some of them and the covering signal some of the remainder and such that the axes of the radiation patterns remain mutually perpendicular as they rotate. Reflectors 26 lie within a ring of eighteen half-wave dipoles 25 the bearing signal modulation being derived from motor 62 which also drives commutator 67-79 whose rotary, e.g. 78, and fixed, e.g. 79, segments are a quarter-wavelength wide; as the commutator rotates polar diagram 13, 20 rotates in 20 degree steps. Baluns, e.g. 65, are used for coaxial/two-wire line interconnection. A higher multiple of nine dipoles may be used.
Patent GB-895684-A (GB)
Title: Improvements relating to the mounting of adjustable guide blades in gas or hot-air turbines or the like
IPC: F01D17/16
Filed: 1961-02-27
Abstract: 895,684. Elastic-fluid turbines. DAIMLERBENZ A.G. Feb. 27, 1961 [March 15, 1960], No. 7119/61. Class 110 (3). In a mounting for adjustable guide blades in a gas or hot-air turbine or like heat engine, each blade is pivotally mounted at each end about an axis radial to the rotor axis by means of a bearing having its bush associated with the blade or a ring part thereof and an inner or pivot part associated with the housing, each inner or pivot part being of spherical shape. Each guide blade 12 has bearing bushes 13<SP>1</SP>, 14<SP>1</SP> attached to its radially inner and outer ring parts 13, 14 and co-operating with stationary spherical pivots 151, 161. A clearance between the pivot 16<SP>1</SP> and outer ring part 14 allows for any radial thermal expansion. In operation the bushes 13<SP>1</SP>, 14<SP>1</SP> become considerably hotter than the pivots 15<SP>1</SP>, 16<SP>1</SP> so that thermal expansion increases the diametrical clearance between bush and pivot whereby jamming is avoided. The guide blades are adjusted through linkage 18.
Patent GB-1444207-A (GB)
Title: Needles
IPC: B65C7/00
Filed: 1975-02-20
Abstract: 1444207 Needle DENNISON MFG CO Ltd (Dennison Mfg Co) 20 Feb 1975 7173/75 Addition to 1355716 Heading D1G The needle described in the parent Specification 1355716 is modified by replacing the rearwardly diverging knife edged recess by a recess 151 which is at least as wide at the portion closest to the needle point as at the rearward end thereof.
Patent GB-1369359-A (GB)
Title: Earth boring bit bearing system having a pitted bearing surface
IPC: E21B10/24
Filed: 1972-02-16
Abstract: 1369359 Bearings DRESSER INDUSTRIES Inc 16 Feb 1972 [2 March 1971] 7181/72 Heading F2A [Also in Division E1] A bearing, e.g. of an earth boring tool, having at least one bearing surface having a roughness of greater than 50 RMS has a lubricant including an anti-galling material between the surfaces. Preferably the anti-galling material consists of particles entrained in the lubricant. The particles may be of silver, copper, aluminium, lead, zinc, tin, babbitt or graphite, and may constitute 15% of the lubricant/particle mixture. The rotatable cutter of the earth boring tool is mounted on a journal 18 located on a drill string bit. Bearing pads are provided on the journal to support the cutter. The cutter is held in position by bearing balls 21 which are introduced between the cutter and journal through a bore 22 which is closed with a plug 23. Lubricant is fed to the bearings through the bore 23 from a reservoir 26 which is closed by a flexible diaphragm 32 which provides compensation for pressure changes.
Patent GB-492262-A (GB)
Title: Improvements in or relating to receptacles convertible into tables
IPC: A45F4/04
Filed: 1937-03-11
Abstract: 492,262. Tables. SCRASE, B. G. March 11, 1937, No. 7195. [Class 52 (iii)] A receptacle for cups, saucers, and other picnic utensils, convertible into a folding table, comprises box-like frames hinged to open to an upright or inverted-V-form, the frames or the table surfaces being supported by hinged struts. In one form, receptacles 1, 2 forming the legs of the structure are hinged together at 3, and tray-like covers 5, 6 of these receptacles are hinged thereto and supported in the raised position by pivoted struts 8, 8<1>, end extensions of the table surfaces abutting in the middle of the table top. Plates may be stowed in a rack 4, Fig. 3, in one of the receptacles, by insertion through notches 12 in the rack bars. The table tops accommodate deck chairs on their under surfaces. In the form in which the receptacles are arranged as an upright V, the struts support them from the ground and the table surfaces span the open top of the V. A subsidiary folding table may be hinged to ledges on the inside of the receptacle frames and span the frames when open.
Patent GB-312709-A (GB)
Title: A new or improved device for earmarking animals
IPC: A01K11/00
Filed: 1928-03-08
Abstract: 312,709. Power, M. J. March 8, 1928. Pliers.-A stud seal for ear-marking animals comprises a pair of flat or dished discs of sheet metal or other sheet material, and a tubular rivet which is adapted to be passed through the ear and flared at its ends by means of sealing-pliers to secure the discs on opposite sides thereof. The jaws j of the pliers are provided with inwardly - directed stems formed with circular bosses k, l, one with a short cylindrical projection to centre one disc, which preferably is already attached to the tubular rivet by flanging the bottom of the latter, the other boss having a conical peg to centre the other disc and to expand and roll over the end of the rivet. The discs are retained in position on the bosses of the pliers by means of spring-pressed washers o mounted behind the bosses and provided with resilient peripheral fingers p. To allow for growth of the ear, the closing movement of the pliers may be limited by an adjustable stop q on one handle, or the rivet may be shouldered to determine the spacing of the discs.
Patent GB-578816-A (GB)
Title: Improvements in electrical means for regulating the amplitude of vibratory motion
IPC: H02P7/06
Filed: 1944-04-19
Abstract: 578,816. Automatic control systems. JENNINGS, R. E., and FOSTER TRANSFORMERS & SWITCHGEAR, Ltd. April 19, 1944, No. 7205. [Class 38 (iv)] Amplitude of vibration.-In an automatic control system the amplitude of an electric motor-driven vibrator is maintained constant in accordance with the direction of rotation of a secondary electric motor, which is driven in alternate directions according to the increase or decrease in amplitude in relation to a predetermined value thereof, through a vibrating member arranged to control a circuit, in which a direct current bias is imposed upon an alternating current voltage, controlling a thermionic valve by the action of which other thermionic valves control the direction of rotation of the secondary motor and the speed of the main motor. The vibration of a member C, consisting, for example, of a flexible member fitted to the vibrator and adapted to make contact at the end of its travel with a fixed contact, produces a direct current voltage across a resistance R2, the mean value of which depends upon the closed and open periods of contact, such voltage being smoothed and applied across a condenser C3 to be opposed by an adjustable voltage across a resistance R1 and supplied in series with an alternating current voltage from a winding W2 to control the grid potential of a gas-filled relay valve V1. The anode of the valve Vl is supplied through a thermal switch S1 to cause a short delay at starting until the valve filaments are heated. The valve V1 will pass current when the direct current negative grid bias component is reduced due to prolonged duration of contact of the controlling switch which causes an increased voltage across the condenser C3. The condition of the anode circuit of the valve Vl is used to control the working of two other gasfilled relay valves V2 and V3, which are arranged so that if the valve V1 does not fire, the valve V2 passes current through a load M, representing the secondary motor, and if the valve V1 does pass current a negative bias is applied to the grid of the valve V2 to prevent that valve from firing. To prevent the valve V3 from firing when the valve V2 passes current, a resistance R8 is used to produce a voltage drop between the cathode and grid of the valve V3. When the valve V2 does not fire. the grid of the valve V3 is at zero potential, so that current passes through the load in the opposite sense to that previously obtaining.
Patent GB-724447-A (GB)
Title: Improvements in or relating to pistons
Inventor: HOLT GEORGE ALLEN
IPC: F01M11/02
Filed: 1953-03-16
Abstract: 724,447. Pistons. RICARDO & CO. ENGINEERS (1927), Ltd. March 16, 1953, No 7252/53. Addition to 617,224. Class 122 (1). The piston of the parent Specification is provided with at least one passage H, for lubricating oil, extending from the trough A<SP>4</SP>  to a point H<SP>1</SP> in the bore of each of the gudgeon pin bosses A<SP>3</SP> in which the gudgeon pin D<SP>2</SP> is free to rock, the point H<SP>1</SP> being substantially below the top of the upper half of the bore when the axis of the piston is vertical and the crown A<SP>1</SP> is uppermost; further, the bore of each of the bosses is provided with an oil distributing chamber H<SP>2</SP> having one or more distributing passages leading therefrom. The small-end bearing E of the connecting-rod E<SP>2</SP> is lubricated through holes E<SP>4</SP> and grooves E<SP>5</SP> arranged on the underside of the bearing as the lubricant is fed to the trough A<SP>4</SP> along a pipe F in the connecting-rod. Two passages H are preferably arranged to intersect the bore in each boss A<SP>3</SP> at diametrically-opposite points H<SP>1</SP> and continue through the boss to be plugged at their lower ends. As applied to a four-stroke engine, the grooves H<SP>2</SP>, H<SP>3</SP> preferably extend around the entire circumference of the gudgeon pin.
Patent GB-575884-A (GB)
Title: Improvements in or relating to refrigerating systems
IPC: F25B41/04
Filed: 1944-04-21
Abstract: 575,884. Refrigerating. PRESSED STEEL CO.,Ltd., ROWLEDGE, E. G.,and NOLCKEN, W. G. April 21, 1944, No. 7411. [Class 29] Compression systems: In a plant comprising two or more separate systems operating in " cascade," i.e., with the condenser of the low temperature system cooled by the evaporator of the next higher temperature system, the compressor 1 of the low temperature system is in permanent communication with a storage vessel 8 of predetermined constant volume for the low temperature refrigerant, e.g., ethane, which is charged at atmospheric temperature. The compressor 1 is started, after the condenser 3 has been cooled by the evaporator 4 of a machine employing the higher temperature refrigerant, e.g., dichlorodifluor-methane, and when the compressor is stopped refrigerant may be stored as liquid in the condenser 3. A high pressure cut-out 10 and an overload valve 11 are provided in the system, as well as a lubricant separator 2. The low temperature refrigerant may be monochlorotrifluoromethane.
Patent GB-840816-A (GB)
Title: Improvements in or relating to electro-mechanical resonators
IPC: H03H9/24
Filed: 1957-03-06
Abstract: 840,816. Electromechanical resonators. GENERAL ELECTRIC CO. Ltd., DREDGE, C. J., and RICHES, E. E. March 6, 1958 [March 6, 1957], No. 7452/57. Drawings to Specification. Class 40(8). The invention comprises an electro-mechanical resonator as disclosed in Specification 840,815; but modified so that the composite bar resonator is of materials such that the velocity of waves transmitted there along is largely independent of temperature variation. The piezo-electric material is ceramic and the end portions of the bar may be of metal or of fused quartz.
Patent GB-1380832-A (GB)
Title: Distillation and stabilization of acrylic or methacrylic acid
IPC: C07C51/487
Filed: 1972-02-17
Abstract: 1380832 Unsaturated carboxylic acids ROHM & HAAS CO 17 Feb 1972 7460/72 Heading C2C Acrylic or methacrylic acids are stabilized during distillation by feeding benzoquinone and hydroquinone monomethyl ether and optionally air or oxygen into the distillation. The quinones are fed from the top and air or oxygen into the bottom of the distillation zone.
Patent GB-684169-A (GB)
Title: Improvements in pneumatic elevating systems
IPC: B65G53/60
Filed: 1950-03-27
Abstract: 684,169. Pneumatic separating. SIMON (HOLDINGS), Ltd., H., LOCKWOOD, J. F., SCOTT, R. A., and WATTS, L. M., [Representative of WATTS, G.]. March 5, 1951 [March 27, 1950], No. 7582/50. Class 117 [Also in Group XXX] Grain conveyed by air current up elevating pipe a, Fig. 1, is separated in separator c and is discharged by wheel d so that it falls into branch pipe b up which a portion of the conveying air is "sidetracked." The clean grain falls into hopper e to be discharged by wheel f and the air containing impurities joins the separated air at g (valves i and h controlling the separate flows) and the air passes to a cyclone and to a fan. In a modification, Fig. 2, the elevated grain is separated in a catch-box j, sliding down its bottom k into the branch pipe b. Alternatively branch pipe b may go directly to pipe g without entraining impurities from the grain. In a further modification Fig. 6, grain passing up elevating pipe a is separated out in cyclone n and falls into pipe b up which air passes from pipe a so that clean grain is discharged at p and the resulting air-bearing impurities passes into cyclone q, the impurities being discharged at r, and the fans s and t producing the air current.
Patent GB-1358112-A (GB)
Title: Plate valve assemblies for piston compressors
IPC: F04B39/10
Filed: 1972-02-18
Abstract: 1358112 Valves HOERBIGER VENTILWERKE AG 18 Feb 1972 [19 Feb 1971] 7586/72 Heading F2V In a plate valve assembly for a piston compressor the valve plate 7 having integral guiding links 12 is centrally clamped between a seat 1 and guard plate 2 and an abutment ring 10 is mounted above a spacer 9 to limit the valve opening movement of the links. The separate ring 10 may be replaced by a depending ring portion of a buffer plate 8 and the abutment surface may be helical. An additional abutment ring received in a slot recess may be provided between the valve plate and seat.
Patent GB-1503644-A (GB)
Title: Method and apparatus for forming fibrous cylindrical element
IPC: B65H18/22
Filed: 1975-04-21
Abstract: 1503644 Winding webs E FOGARTY & CO Ltd 21 April 1975 [19 Feb 1974] 7625/74 Heading D1N An apparatus for winding a fibrous web 9 into a roll of a predetermined radial density comprises an endless belt 1 trained over guide rollers 2 to 5 and formed into a loop 6 to wind the web about a mandrel 12 into the roll. In operation, following feeding the leading end of the web into the loop 6, the roller 5 is moved to portion 18a of a slot 18 to initiate the winding of the web about the mandrel and into the roll, the rate of increase of the loop during winding being controlled in accordance with a predetermined function by displacing the roller 4 drivingly along a slot 15. The diameter of the wound web roll is controlled by switches 16, 17 actuated by the spigot of the roller 4.
Patent GB-732672-A (GB)
Title: Improvements in and relating to spinning mules
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01H3/00
Filed: 1952-03-25
Abstract: 732,672. Spinning-mules. ,T. M. M. (RESEARCH), Ltd. Feb. 6, 1953 [March 25, 1952], No. 7656/52. Divided out of 732,671. Drawings to Specification. Class 120(2). Backing-off mechanism for a mule includes a normally ineffective driving connection between the tin roller and a prime mover which is separate from that which drives the spindles in their normal direction for spinning and winding, means for rendering the prime mover automatically effective during the backing-off period and also at the end of the inward run of the carriage and means for rendering the driving connection effective during the backing-off period to enable the prime mover to drive the tin roller in reverse simultaneously with the movement of the faller to its inoperative position. The prime mover is preferably a reversible electric motor located on the carriage and the driving connection includes electromagnetically locked differential gears. The subject-matter of this Specification is included in that of Specification 732,665. The Provisional Specification also refers to Specification 732,671.
Patent GB-198814-A (GB)
Title: Improvements in and relating to resilient wheels
IPC: F16D3/56
Filed: 1922-03-16
Abstract: 198,814. British Thomson - Houston Co., Ltd., (General Electric Co.). March 16, 1922. Toothed wheels; pulleys and driving-drums.- Concentric driving and driven elements 1, 2 supported one by the other so as to be relatively rotatable are resiliently coupled by a circumferential series of springs 5, 6 of the bowed leaf or plate type inserted under any desired compression in radial slots 3, 4 formed partly in each element. The rim 1 is hardened, the walls of the slots 3 being partly cut away at 10 before hardening to save machining, the inner and outer ends of the slots serving to support the springs, which are retained in position by side plates 7 fastened to the rim. The invention may be applied to gear wheels as shown, to pulleys, the wheels of electric locomotives, the spiders or drums supporting conductors of dynamo electric machines &c. It may also be utilized for taking up disalignment of the gear teeth where two such wheels are mounted on the same shaft.
Patent GB-1417601-A (GB)
Title: Trailer vehicles and anti-sway control systems therefor
IPC: B60T8/17
Filed: 1973-02-16
Abstract: 1417601 Automatic regulation of trailer brakes KELSEY-HAYES CO 16 Feb 1973 [6 March 1972] 7768/73 Heading F2F A wheeled trailer vehicle has a braking control system which includes means 20 for sensing the magnitude of angular acceleration of the vehicle and a control device 26 which in response to an angular acceleration of a predetermined magnitude actuates the brake of at least one wheel. The sensor 20 includes an assembly defining an enclosed volume 38 in which a ribbed disc 40 is rotatably supported and which is filled with a liquid, rotation of the disc being resisted by springs 64, (66). When angular acceleration of the trailer exceeds a predetermined value the disc 40 is rotated against the springs and one of two window openings provided in the disc becomes aligned with a light emitting diode LED and a photo-resistive member Q1 so that a signal is provided to operate a circuit controlling the brakes.
Patent GB-466531-A (GB)
Title: Compression refrigerating machine
IPC: F25B31/00
Filed: 1936-03-16
Abstract: 466,531. Refrigerating. BERLINSUHLER WAFFEN - UND FAHRZEUGWERKE GES. March 16, 1936, No. 7820. Convention date, March 22, 1935. [Class 29] Compression machines and systems.-In order to effect lubrication of the parts of a machine of the kind employing a refrigerant immiscible with the oil and comprising a compressor 9 mounted in a housing 4 and driven by an electric motor 1 and having an extension 10 for oil on the housing, the capacity of the extension and the oil stored therein during the normal operation of the machine are greater than the total capacity of the condenser 13, evaporator 12 and the conduits between these parts and the compressor. Thus, in the event of oil being displaced into the condenser and the evaporator and refrigerant into the extension, there will still be sufficient oil in the extension to lubricate the machine. The oil is preferably circulated by a pump 11, the position of which depends upon whether the oil is lighter or heavier than the refrigerant. The pump may be replaced by chains, rings, or a rotary scoop.
Patent GB-326990-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1929-03-12
Abstract: 326,990. Entwisle & Kenyon, Ltd., Kenyon, R. W., and Kenyon, W. H. March 12, 1929. Carpet-sweepers.-In a carpet-sweeper of the type in which the axles of the floor wheels are each connected to a supporting spring and to a spring adapted to press the wheel towards the brush pulley, both springs are disposed outside the end of the casing between it and the wheel. In the construction shown in Fig. 2, the axles B are connected preferably through the medium of plates F, to a brush drive spring D and to axle springs C. In a modification shown in Fig. 4, a separate brush drive spring D<1> for each axle is provided at each end of the casing, each spring D<1> being anchored to the casing at a point below the level of the axle, while the axle springs C<1> are secured at points above the axle.
Patent GB-702725-A (GB)
Title: Improvements in or relating to dry contact rectifiers
IPC: H01L29/00
Filed: 1952-03-28
Abstract: 702,725. Asymmetrically - conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1952 [May 10, 1951], No. 8001/52. Addition to 697,269. Class 37 Dry contact rectifiers of small size are cut from a large base electrode, on which is a semi-conductor (e.g. selenium), an insulating layer in the form of a screen of a uniform pattern the frequency of the pattern repetition bearing such relation to the size of the rectifier that the effective area of the rectifier remains substantially the same irrespective of the position of the pattern on the rectifier, and a counterelectrode. The insulating layer may be perforated paper Fig. 2 or may be plastic insulating material sprayed; the counter electrode 4 Fig. 4 is deposited over the insulating layer. Specification 526,482, is referred to.
Patent GB-709464-A (GB)
Title: Improvements in and relating to folding and sliding doors
Inventor: TEMPLE JOHN EDWIN
IPC: E06B3/48
Filed: 1952-03-28
Abstract: 709,464. Doors. TEMPLEX HOLDINGS, Ltd. March 28, 1952, No. 8024/52. Addition to 691,057. Class 20 (3) A sliding and folding door of the type comprising a series of vertical pillars P supported at their upper and lower ends to run along guide tracks, not shown, and pairs of interconnected panels, not shown, hinged along their outer edges to the pillars which are interconnected by links 2, 2 and 2', 2<SP>1</SP> arranged in pairs coupled to a common vertical tie rod 3, is characterized in that traction links 50, 50<SP>1</SP> attached to the tie rods are coupled to the pillars P through a lost motion connection so that when the door is closed they transmit tractive force from pillar to pillar. Each traction linkage comprises two half links 50, 50<SP>1</SP> pivotally connected at one end at 52 to a central tie bar 3 and carrying a pin 57 at the other end to engage in a slot 56 in a relatively heavy shackle member 53 which is connected to the respective pillar by a U-bracket 54. The pins 57 slide in the slots 56 to produce a lost motion connection. Specification 708,344, [Group XXV], is referred to.
Patent GB-526752-A (GB)
Title: Improvements in or relating to the control of battery-charging dynamo systems in motor vehicles
IPC: H02J7/22
Filed: 1939-03-13
Abstract: 526,752. Battery charging systems. WARD, E. R. March 13, 1939, No. 8041. [Class 38 (iv)] A car dynamo 10 charges a battery 14 through a cut-out 17, 18 and a voltage relay comprising contacts 24, 25 is effective to open the circuit of the dynamo field 31 upon the voltage of the dynamo attaining a predetermined value. After the relay 24, 25 has been operated by its coil 20, it is maintained by a coil 27 connected to the battery 14 by operation of the relay. An indicator 30 is connected across the output terminals of the dynamo and by operation of a switch may be transferred to the battery terminals. The relay 24, 25 may be provided with double pole contacts.