baber/WOPTO huggingface dataset:
Patent GB-1465541-A (GB)
Title: Microwave multiport circulators for radar applications
IPC: H01P1/387
Filed: 1974-01-30
Abstract: 1465541 Circulators SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE SpA 30 Jan 1974 [31 Jan 1973] 04404/74 Heading H1W Anon-reciprocal multiport device, e.g. a circulator, makes use of peripheral propagation modes and a polarizing magnetic field which is non-uniform in the vicinity of the tapered matching sections of the ports. As described, a four-port circulator comprises a ferrite element 2, ground plane 3 and striplines A, B, C, D integral with and smoothly merging into a planar junction member 5. The path of the peripheral wave coupling ports B and C is shown by the line P, the other ports being similarly coupled in pairs. In order to match the peripheral waves to the TEM waves on the striplines, the intensity of the magnetic field varies from a maximum at the centre of the junction 5 to a minimum at the outer ends of the matching sections of the striplines. This is indicated by the non-uniform spacing of the magnetic contour lines 8 which indicate equal increments of magnetic field intensity. The required distribution may be obtained by means of a soft-iron element 6 located at the centre of the junction 8, or by decreasing the diameter of the permanent magnet 7 (see Fig. 5b, not shown).
Patent GB-421633-A (GB)
Title: An apparatus for playing table games
IPC: A63F7/38
Filed: 1934-02-10
Abstract: 421,633. Table game apparatus; puzzles. FOLKER, A. L., Lested Lodge, Lion Gate Gardens, Richmond, Surrey. Feb. 10, 1934, No. 4432. [Classes 132 (ii) and 132 (iii)] Table game apparatus comprises an inclined board having a path winding from side to side of the board and provided with traps, the board being rocked from side to side to manoeuvre the ball to avoid the traps. The board is supported in an inclined position by hinged supports 14 at each end, the supports having pointed or rounded extensions 15 so that the board can be rocked about a longitudinal axis by handles 17. The board has a rim 13 and comprises a plain plywood underboard 10 to which is secured on the upper surface thereof a board 11 carved or fretted out to provide a channel 12 for a metal ball or balls rolling from the end 18 to the harbour or goal 16, provided with cups 25 having different scoring values. The channel 12 simulates a river, steeplechase or motor racing course and is provided with bridges 24 and traps 21 comprising circular cut away parts 21 communicating with the channel 12, on the lower side thereof, by tributary channels 22. Projections 23 are provided making it difficult for the balls to pass the traps. The tributary channels 22 preferably lie parallel or substantially parallel to the axis of pivoting of the board so that an entrapped ball is not dislodged in rocking the board. The balls are kept in a store 19 provided with a pivoted cover 20. A magnet may be provided to facilitate return of the balls.
Patent GB-621306-A (GB)
Title: Improvements in or relating to railway rail clips
IPC: E01B21/00
Filed: 1947-02-15
Abstract: 621,306. Permanent way. GRUNDY, E. K. Feb. 15, 1947, No. 4450. [Class 104 (ii)] Rails e are secured to seats b of sleepers a by U-shaped clips f having their ends f<SP>1</SP>, f<SP>2</SP> turned in to engage the flanges e<SP>1</SP> of the rail and their centres engaged by taper wedges g. The clip may be in one part or two parts hinged together and in the latter case the parts are connected by a yoke and the wedge has a bolt to prevent withdrawal. The rail seat has diverging arms and the clip tapers to fit within the arms. The rail seat and sleeper are secured by pegs c and taper pins d.
Patent GB-621103-A (GB)
Title: Improvements in or relating to fluid metering valves
IPC: E03D3/04
Filed: 1949-02-18
Abstract: 621,103. Valves actuated by auxiliary valves. HISTON, R. Feb. 18, 1949, No. 4534. Drawings to Specification. [Class 135] The invention is identical with that disclosed in Specification 591,795.
Patent GB-962231-A (GB)
Title: Process for the production of fibres of improved elastic recovery
Inventor: TESSIER JOSEPH DONATIEN LEO
IPC: D01F6/04
Filed: 1961-02-07
Abstract: 962,231. Heat-treatment of polyamide, polyester and polyolefin fibres. CANADIAN CELANESE Ltd. Feb. 7, 1962 [Feb. 7, 1961], No. 4596/61. Heading B5B. Melt-spun fibres of polyamides, polyesters or polyolefins are subjected to a dry heat-treatment at a temperature short of the melting temperature under such conditions that shrinkage of the fibres occurs. Heat-treatment may be effected at from 75‹ C. to 10‹ C. below the melting point of the polymer. Heat-treatment may be effected with continuous filaments or cut staple fibre in the loose state, e.g. in an oven. Polypropylene containing at least 70% of the isotactic form and preferably about 85% may be melt-spun to form filaments, the filaments subjected to a draw-down from the spinning jet of at least 20 times, preferably as much as 25-200 times, and then, without stretching, heat-treated, suitably at 85- 145‹ C., by means of hot air, infra-red or dielectric heating, or direct contact with a heated metal surface. The treatment increases the elastic recovery of the fibres.
Patent GB-1202161-A (GB)
Title: Improved process for edging laminated panels
Inventor: GOLDMAN ABE PAUL
IPC: B29C63/02
Filed: 1968-01-30
Abstract: 1,202,161. Edging laminates. A. P. GOLDMAN. 30 Jan., 1968, No. 4634/68. Heading B5N. A laminated panel comprising a sheet 13 impregnated with thermosetting resin or other heat-curable substance bonded by heat and pressure to a substrate 12 in turn bonded by adhesive to a core 11 such as plywood, hardboard or particleboard, has its edge finished by bonding to the edge, by heat and pressure, a strip 17 impregnated with a heat-curable substance. As shown, a sheet/substrate composite 13, 12 is bonded to each side of the core. The strip may initially overlap the edges of the panel and be subsequently trimmed, and the process may be applied to edges which are non-planar, e.g. convex or double-curved. The substance impregnating the strip may be the same or different from that impregnating the sheets. Suitable heat-curable substances are polyester, phenolic or melamine resins or diallyl phthalate. The sheets may be of paper, fabric or wood veneer.
Patent GB-853241-A (GB)
Title: An applicator for use in the ear
IPC: A61F11/00
Filed: 1959-02-11
Abstract: 853,241. Medicament applicators. MIRABET, J. M. C. Feb. 11, 1959 [Feb. 17, 1958]. No. 4745/59. Class 81 (2) An ear plug 1 is made of porous elastomeric material and has a central recess 2. The pores of the material and the bore 2 are used to hold liquid or pasty medicaments so that when the device has been placed in the ear, the medicament slowly passes out to the external canal. The introduction of medicament is also assisted by the slight squeezing of the plug when it is placed in the ear.
Patent GB-212079-A (GB)
Title: Cranes for raising and lowering boats or like loads
IPC: B63B23/04
Filed: 1923-02-19
Abstract: 212,079. Hilgers, G. Feb. 19, 1923. Davits.-Relates to davits comprising two parts pivotally connected together and capable of luffing in succession about points at different distances from the ship's side. Both parts are free to luff automatically under the weight of the load when the hoisting ropes are paid out, even when the ship has a list. As shown in Fig. 1, an inner member 1 is pivoted at 23 and an outer member 3 is pivoted to the member 1 at a point 4 outboard from the point 23. The pivot 4 is carried by a sector 22 forming part of the member 1. On slacking the rope 9, the davit turns about the pivot 23 until the sector 22 rests on the stop 25, and the member 3 then turns about the pivot 4. As shown in Fig. 3, the member 3 is pivoted at 4 on an inner member 30, which is pivoted at 23, turns during the initial luffing until it rests on a cross-bar 32, and carries a stop 35 for the member 3. A sector-shaped stop 31 between the members 3 and 30 causes the member 3 to turn with the member 30.
Patent GB-831328-A (GB)
Title: Process for the production of novel addition products from aluminium hydrocarbons and acetylene or acetylene derivatives
IPC: C07F5/06
Filed: 1956-02-15
Abstract: Addition products of aluminium hydrocarbons and acetylene or acetylene derivatives are made by reacting an aluminium hydrocarbon of general formula AIR2R1, where R stands for a hydrocarbon radical and R1 for a hydrocarbon radical or hydrogen at temperatures up to 90 DEG  C. with acetylene or an acetylene derivative of formula R11-C­C-R111, where R11 stands for a hydrocarbon radical or hydrogen and R111 for a hydrocarbon radical, hydrogen or the group -AIR2 the molar ratio of the alumminium hydrocarbon to the acetylene or acetylene derivative being 1:2, 1:1 or 2:1.  On a 1:1 molar basis addition proceeds as follows: (C4H9)2AIH + H.C ­ C.C6H5 --> (C4H9)2 Al-CH = CH-C6H5-iso.  On a 2:1 molar basis, using di-isobutyl aluminium hydride and hexine-(1), the addition proceeds <FORM:0831328/IV (b)/1> If desired the aluminium hydrocarbon used in the second stage can be different from that used in the first.  Using aluminium trialkyls and acetylenes (C2H5)2Al-C2H5 + HC ­ CH --> (C2H5)2Al-CH = CH-C2H5.  The unsaturated product so obtained will react with a second mol. of acetylene <FORM:0831328/IV (b)/2> This product may be decomposed with water to give 1,2,3,4-tetraethyl butadiene.  A third mol. of acetylene or acetylene derivative may be added to give a trebly unsaturated addition product which gives rise to hexa-substituted benzene by ring closure on formation <FORM:0831328/IV (b)/3> Thus the trimerization of a large amount of an acetylene with the triple bond in the middle position can be accomplished by a small quantity of dialkyl aluminium hydride.  The unsaturated product obtained by adding 1 mol. of aluminium trialkyl to 1 mol. of an acetylene derivative may added to dialkyl aluminium hydrides <FORM:0831328/IV (b)/4> Further, an acetylene may be added in a 1:1 molar ratio to a dialkyl aluminium hydride and one mol. of aluminium trialkyl added to the product <FORM:0831328/IV (b)/5> Acetylenes of formula R2Al-C + CR111 (which may be obtained by reacting a dialkyl aluminium chloride with a sodium acetylene) may be added to dialkyl aluminiu hydride or aluminium trialkyl <FORM:0831328/IV (b)/6> and the unsaturated products so obtained may be added to a second mol. of dialkyl aluminium hydride to obtain a saturated reaction product.  Diethyl butinyl aluminium is prepared (Example (10)) by reacting sodium with butine-1 in liquid ammonia, taking up the salt so formed in hexane and adding to the suspension diethyl aluminium monochloride.  1,2,3,4 - Tetraphenyl butadiene is prepared (Example (12)) from 1,2-diphenyl acetylene and di-isobutyl aluminium hydride in a 2:1 molar ratio and decomposing the product with alcohol.  Hexaphenyl benzene is prepared (Example (14)) by the trimerization of 1,2-diphenyl acetylene with di-isobutyl aluminium hydride at 140 DEG  C.  Specifications 713,081, 742,642 and 763,824 are referred to.
Patent GB-980769-A (GB)
Title: Process for the production of dinitrotoluenes
IPC: C07C205/06
Filed: 1963-02-06
Abstract: In the manufacture of dinitrotoluenes by nitrating mononitrotoluenes, the nitration is effected at a temperature not exceeding 75 DEG  C. with an acid mixture containing 60-65% by weight of sulphuric acid and a little water, and the quantity of nitric acid is 1.08-1.01 times the theoretically necessary quantity. The acid mixture may include the whole or a part of the spent acid from a previous nitration.  Examples of both batch and continuous processes are given.
Patent GB-596798-A (GB)
Title: Improvements in the yarn package holders of yarn winding machines of the cross winding type
IPC: B65H54/54
Filed: 1945-02-27
Abstract: 596,798. Yarn package holders for yarnwinding machines. DIXON, HAWKESWORTH, Ltd., DIXON, E., and SINGLETON, G. W. Feb. 27, 1945, No. 4874 [Class 120 (ii)] The tube or core of a yarn package is supported in a winding-machine by a cradle bracket A equipped with tube holders comprising two conical supports C mounted on spindles B, a ball being interposed between the end face of each spindle B and a recess in the base of each conical support C so that the latter can adjust itself to inaccuracies in the bore of the tube. Flanges c of the conical supports C are turned over radial flanges b of their respective spindles. One spindle may be fixed in an arm of the bracket A and the other slidably mounted in the other arm under pressure from a spring F.
Patent GB-966350-A (GB)
Title: Improvements in fluid pressure regulating valves
IPC: G05D16/16
Filed: 1963-02-06
Abstract: 966,350. Regulating fluid flow. GROVE VALVE & REGULATOR CO. Feb. 6, 1963 [Feb. 16,1962], No.4887/63. Heading G3H. [Also in Division F2] Flow of gas from a passage 147 Fig.11, to passage 137 or valve 139 takes place through a loose thread connection and slots 149, 150 respectively in orifice discs 146. The shots are located radically of the discs and are of greater length than the radius so that a stack of discs may be used, if required, while assuring a flow path being provided in any position of the discs in the stack. As shown the discs are separated by a spacer 145. A single element 162 Fig.12 may be used having chamfered edges and radial grooves 163, 163a.
Patent GB-772521-A (GB)
Title: Magnetic recording, reproducing or erasing head comprising a core of ferrite
IPC: G11B5/187
Filed: 1955-02-18
Abstract: 772,521. Magnetic recording, reproducing and erasing heads. INDUSTRIAKTIEBOLAGET LUXOR. Feb. 18, 1955 [March 13, 1954], No. 4938/55. Class 40 (2). A magnetic recording, reproducing or erasing head comprises a ferrite core 1, 2 having at least one working gap 6, 7 and respective linings 10, 11 of a magnetic material having soft magnetic properties and permeability and saturation values which are higher than those of the ferrite material the linings being so intimately connected to one or both insides of each gap that no additional gap is formed between the core at each side of the gap and its corresponding lining. The linings 10, 11 may be of iron or iron alloy and may be applied by electrolytic precipitation or by vacuum evaporation. End parts 3, 4 of ceramic material have polished tape guide paths 8, 9, and in the erasing head shown a strip 13 of a non-magnetic low specific resistance material, e.g. hard chrome, is coated on parts of the pole pieces to increase the perpendicular erasing component. The gaps preferably are filled with metal, not shown.
Patent GB-608179-A (GB)
Title: Improvements in or relating to suction dredgers
IPC: E02F3/90
Filed: 1946-02-18
Abstract: 608,179. Suction dredgers. SMIT'S SCHEEPSWERVEN N. V., J. & K. Feb. 18, 1946, No. 4969. Convention date, June 4, 1941. [Class 68 (i)] In a suction dredger in which the movable outer end of the suction tube is connectible by a member 11 to the fixed part thereof and is arranged in a cradle 1 adapted to pivot about a shaft 6 movable in vertical guides 7, to facilitate inspection, the cradle is raised by a cable 3, the member 11 is secured to the cradle by tackle 12, a shaft 9 is passed through holes in the cradle and provided with rollers 10 bearing on the deck, and the shaft 6 and member 11 are freed so that the cradle may pivot about shaft 9. As shown, the shaft 9 is inboard from the centre of gravity Z of the cradle, release of the cable 3 then permitting the necessary tilting of the cradle; in another form, the shaft 9 is outboard from the centre of gravity, and the cable 3 is arranged over pulleys so as to apply downward pressure to the outer end of the cradle to effect the necessary tilting of the cradle.
Patent GB-579351-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C5/00
Filed: 1944-03-17
Abstract: 579,351. Making foam. NATIONAL FOAM SYSTEM, Inc. March 17, 1944, No. 5019. Convention date, Oct. 12, 1943. [Class 47 (ii)] (Also in Group II] A continuous supply of foam-making solution to a water conduit 26 is provided by two chambers 12, 13 which are alternately connected to the conduit by a manually-operable valve plug 35. The chambers 12, 13 are separated by a domed partition 11 and are provided with filling openings 16, 17, associated with shoots 20, 20a, and drain fittings 21. The high-pressure side 40 of a venturi passage 29 is connected by a bore 43 in the valve body 33, an arcuate groove 44 in the plug 35, and a passage 42 in the body 33 with the chamber 13, while the latter is connected by a tube 52, a passage 48 in the body 33, an arcuate recess 53 in the plug 35 and a bore 50 with the lowpressure side 49 of the passage 29, whereby foam-forming solution is forced into the conduit 26. The plug 35 is provided with pairs of recesses 44, 53, whereby one chamber 12, 13 is connected to the water supply while the other is open to the atmosphere by a pipe 46 and may be replenished. The plug 35 is biassed to the right by a spring 38, but in case of wedging may be drawn to the left by rocking the plug handle 39 about a pivot 59. The valve assembly may be detachable as a unit from the chambers 12, 13. Specification 573,633 is referred to.
Patent GB-996136-A (GB)
Title: Improvements in or relating to helicopters
IPC: B64C27/52
Filed: 1963-02-07
Abstract: 996,136. Helicopters. M. W. GOULD. Feb. 7, 1963 [Feb. 8, 1962], No. 5081/63. Heading B7W. A helicopter comprises a hollow shaft 22 on which at least one rotor blade 28 is fixed, a hollow cylindrical housing 36 partially housing the shaft, bearings between the housing and the shaft, load carrying means journalled to one end of the shaft and means connecting the load carrying means to the housing for changing their relative position. As shown, the load carrying means consists of a tube 16 universally mounted at 18 in a cap 46 seated on a hemispherical upper end 24 of the shaft 22. The longitudinal axes of the shaft and the tube can be relatively tilted for horizontal flight by hydraulic jacks 40. The shaft is internally toothed at 30 and is driven through pinions 32 by internal combustion engines 34 supported by the housing 36, and the torque on the housing is resisted by extendable fins 42 in the rotor downwash. Similar fins 44 are fitted on a load carrying car 10 suspended from the tube 16. Wings 58 are provided each extending in a semicircle around a duct 52 containing the rotor.
Patent GB-1305784-A (GB)
IPC: F02M3/00
Filed: 1970-02-03
Abstract: 1305784 Spray carburetters NISSAN MOTOR CO Ltd 3 Feb 1970 [5 Feb 1969(2)] 5081/70 Heading F1B The variable choke carburetter 11 of a motor vehicle I.C. engine has the mixing chamber 12 connected to the intake manifold by a passage 21 which is controlled by a solenoid valve 22 to be open at least when the vehicle is decelerating from high speed. The valve 22 is operated by a solenoid assembly 23 which is energized when a switch 41, associated with a manual transmission 15, and a switch 43, associated with the clutch pedal 16, are closed. The switches 41 and 43 are closed when the transmission is in the highest or either of the higher two gears by co-operation of the switch movable member (49) or (61), Figs. 2 and 3 (not shown), with a recess (56) or recesses in a transmission rod (53) or a recess in the clutch pedal, respectively. The assembly 23 is connected to the battery 19 via the ignition switch 18. In another embodiment, Figs.5 and 6 (not shown), a pair of pressure operated switches (72, 73) connected in series are closed when an automatic transmission (15') is in the highest gear. In a further embodiment, Fig. 7 (not shown), a switch (95) is closed when the voltage supplied to a relay (93, 94) exceeds a predetermined value, the voltage supplied corresponding to vehicle speed. The valve 22 may be controlled by the intake manifold vacuum. Reference has been directed by the Comptroller to Specification 1140751.
Patent GB-510228-A (GB)
Title: Improvements in impact wrenches
IPC: B25B21/02
Filed: 1939-02-16
Abstract: 510,228. Screwing-up nuts etc.; clutches. MOSS, E. W. (Ingersoll-Rand Co.). Feb. 16, 1939, No. 5102. [Class 83 (iii)] [Also in Group XXIV] In a machine for screwing-up or unscrewing nuts, screws &c. having a rotary anvil normally connected to a rotary hammer by clutch teeth, the hammer is connected to its driving member by balls lying in V-shaped grooves in the two members so that when the nut &c. is set the balls will ride along the slots to separate the clutch teeth and deliver rotational blows to the anvil. The anvil 25 carrying a socket 33 for driving a nut 41 has segmental clutch teeth 23 co-acting with teeth 21 on the hammer 19 which is driven by balls 73 engaging V-shoulders 65 on the hammer and lying in V-grooves 57 in a sleeve 17 attached to a polygonal portion 15 of the driving shaft 9 rotated by a motor in the casing 5. The V-angle of the grooves and shoulders is considerably less than 90 degrees. A spring 53 seats against the base of the hammer 19 and against a ball-bearing 51 in the sleeve 17 to maintain the clutch 21, 23 in engagement for driving a nut. The balls 73 normally lie at the apices 63 of the grooves 57 so that when rotation of the nut stops, the balls will ride up the grooves 57, thereby raising the hammer 19 against the spring 53 until the clutch teeth have cleared each other, as shown in Fig. 3. The compression of the spring 53 will then cause the hammer to be rotated forward rapidly in restoring the balls to their normal positions in the slots, whereby the hammer will deliver a rotational blow to the anvil, the clutch teeth 23 being widely spaced to allow the teeth 21 to enter. These blows will be delivered repeatedly to set the nut until the motor is stopped. The rotating parts of the device are maintained in alignment by a central member 47 rotatable on a spigot 45 on the driving shaft 9 and engaging a bore 49 in the anvil 25, this member also preventing endwise movement of the anvil. Axial movement of the driving shaft is prevented by a collar 13 thereon.
Patent GB-1299451-A (GB)
Title: Improvements in or relating to apparatus for displaying and dispensing goods for sale
Inventor: MARVIN NORMAN ARTHUR
IPC: A47F1/12
Filed: 1969-01-30
Abstract: 1299451 Dispensing articles N A MARVIN 7 Jan 1970 [30 Jan 1969] 5115/69 Heading A4T An adjustable width article display and dispensing apparatus comprises front and rear longitudinal support members 18, 16 between which extend sets of three rods 42, 44, rod 42 passing through a helical spring and rods 44 lying outside and supporting the convolutions whereby a stack of articles 26 is pushed forward, by the spring acting at the rear of the stack between fence rods 20, up to abutment with member 18 for dispensing of the front article. The ends of the rods 42, 44 are welded to a plate 45 which is slid, together with the cranked ends 40 of the fence rods, adjustably in longitudinal grooves 30 in the support members. Tie-rods may be passed between the support members to provide rigidity.
Patent GB-1077131-A (GB)
Title: Improvements in release mechanisms
Inventor: CLAYTON DAVID ROBERT
IPC: F16H1/06
Filed: 1964-02-06
Abstract: 1,077,131. Spring starters. CROSSBOWMOORE Ltd. Jan.19, 1965 [Feb. 6, 1964], No. 5163/64. Heading F1K. [Also in Division F2] In an engine starter wherein a toothed drum 10 is attached to the engine crank-shaft and to the engine frame by a spiral spring so that after winding up of the drum 10 against the spring by a pinion 11 with a back stop, disengagement of the pinion 11 allows the drum 10 to rotate the engine, the pinion 11 is mounted on a spring pivoted arm 13, 14 held against drum disengagement by a toggle 17-18 abutting a cam 22 which is swung by an arm 23 to force the toggle over-centre into a collapsed position allowing rapid pinion disengagement by the spring 16. The toggle may have a pin holding it in the position shown which is removed on movement of the cam 22 by the cam control.