baber/WOPTO huggingface dataset:
Patent GB-1177220-A (GB)
Title: Improvements in or relating to Electrical Connectors for Coaxial Cables
Inventor: ROSS MICHAEL THOMAS
IPC: H01R13/646
Filed: 1967-05-03
Abstract: 1,177,220. Coaxial cable connector. BELLING & LEE Ltd. 3 May, 1968 [3 May, 1967], No. 20571/67. Heading H2E. A smooth guiding surface formed on a cylindrical insert inside the body of a coaxial cable connector, in which the direction of engagement with a mating connector is inclined to the axis of cable entry, facilitates connection of the inner cable conductor with the inner contact of the connector. As shown, one limb 2 of an L-shaped hollow metal body 1 carries parts of a coaxial plug comprising an inner contact 7, an outer contact 8 which is part of an extension member 4, insulating inserts 5, 6 which retain contact 7, and a captive ring member 11 which may be provided with a screw-threaded portion 13 to engage a mating connector. The cable enters limb 3 of the body member 1 through a close fitting tube 14. A cylindrical ferrule 18 is located inside the outer conductor of the cable. When tube 14 is screwed into the limb 3 the outer conductor is retained in contact with the ferrule by inward radial thrust from a rubber sleeve 16 held between washers 15, 17. The inner conductor of the cable, to be soldered or crimped to the inner contact at 20, is guided into an-aperture 19 by a smooth arcuate channel 22 cut into a cylindrical metal insert 21. In another embodiment, the arcuate channel 22 is replaced by an axially curved cylindrical channel formed in diametral halves of the insert.  The direction of connector engagement and the axis of cable entry may be inclined at an angle other than 90 degrees.
Patent GB-645468-A (GB)
Title: Improvements in or relating to the manufacture of mixed phosphatic fertilisers
IPC: C05B17/00
Filed: 1948-08-04
Abstract: In making phosphatic fertilizers, natural phosphates, e.g Morocco phosphate, apatite and phosphate chalk, are treated in the presence of water with technical ammonium imidosulphonate, NH(SO3NH4)2, which contains ammonium nitrilosulphonate, N(SO3NH4)3, and ammonium amidosulphonate, NH2SO3.NH4.  The imidosulphonate is preferably used in excess of that stoichiometrically required.  The reaction may be effected in the presence of an inorganic acid, such as H2SO4, HNO3 or HCl, in amount, e.g., equivalent molecularly to the calcium phosphate.  Potassium compounds, e.g. potassium sulphate and Kainite, may be added.ALSO:Phosphatic fertilizers are made by treating natural phosphates, e.g. Morocco phosphate, apatite and phosphate chalk, in the presence of water with technical ammonium imidosulphonate, NH(SO3NH4)2, which contains ammonium nitrilosulphonate, N(SO3NH4)3, and ammonium amidosulphonate, NH2.SO3NH4.  The imidosulphonate is preferably used in excess of that stoichiometrically required.  The reaction may be effected in the presence of an inorganic acid, such as H2SO4, HNO3 or HCl, in amount, e.g. equivalent molecularly to the calcium phosphate.  Potassium compounds, e.g. potassium sulphate and kainite, may be added.
Patent GB-1109343-A (GB)
Title: Apparatus for resistance welding of spiral seam tubing by high frequency alternating current
Inventor: SABLOTNY ADALBERT
IPC: B23K9/032
Filed: 1966-05-10
Abstract: 1,109,343. Welding by pressure; coiling strip. HOESCH A.G. 10 May, 1966 [15 May, 1965], No. 20715/66. Headings B3E and B3R. In a machine, Fig. 1, for producing helically seam-welded tubing, flat strip 9 is fed by a conveyer belt (not shown) past guides 10 ... 13 to a series of rollers 6, 7, 8 and others not shown which form the strip into tubing and welding is accomplished by applying highfrequency alternating current through contacts 19, 20 to the converging edge faces 16, 17 of the flat, 14, and already formed strip 15. The strip 9 is fed at a suitable angle to create pressure between the edge faces for welding. In order to avoid the tendency which occurs with very high-frequency current (e.g. 450 kc/s. and up to 600 kc/s.) for current to concentrate on the inner edge 26 of the flat strip 14 and on the outer edge 27 of the formed strip 15, which gives rise to unsatisfactory welds being formed, a pair of conductive circuit members 30, 31 are disposed between the weld point 18 and the contacts 19, 20, which serve to divert a part of the current to give uniform heating across the welding faces 16, 17. The circuit members 30, 31 may each form two air gaps 33, 34, 38, 41 between their ends and one narrow or welding face 16, 17 and one main surface 35, 40 of the strips 14, 15. For practical reasons the circuit members may be constructed so that only one air gap exists between each circuit member and the moving strips and the other end of the circuit member makes sliding contact with the moving strip. Preferably that limb of circuit member 30 which faces the narrow edge 16 of the flat strip 14 is narrower than the edge 16 and is disposed towards its outer edge 28, and conversely, as shown, for the circuit member 31. The circuit members 30, 31 may be mounted on levers 43, 47, 44, Fig. 1, which are pivotable about a common pin 42 to form a tongs arrangement, coil springs 45, 46 biasing the members against the strips. In a modification (Figs. 11, 12, not shown) the circuit members each comprise two parts in constant sliding contact with the opposed moving portions of the strip the two parts being connected through a capacitor having an air gap of suitably chosen length and area.
Patent GB-268631-A (GB)
Title: Electrically heated tools for pyrography, soldering and like purposes
IPC: H05B3/02
Filed: 1926-08-23
Abstract: 268,631. Gamard, H. Aug. 23, 1926. Electric stoves.-In apparatus comprising an electrically-heated working point, such as pyrographic apparatus, cauterizing-instruments, or soldering irons, the temperature of the point is regulated by sliding the heating-resistance, or a metal body heated thereby, into a cavity in the point or over a tail-piece integral therewith. In the arrangement shown the point 1 is screwed into a casing 2 of stealite or other heat-resisting and insulating material and is provided with a tail-piece 30 over which slides a sleeve 11 around which is wrapped the resistance wire 12 of the sleeve 11 and tail-piece 30 may be electrically insulated from each other. The sleeve 11 is carried on a metal rod 15 which serves as one lead and is encased in an insulating body 16 formed with a groove through which passes the other lead 3. The casing 2 is connected by a collar 3 and a junction piece 4 to the body of the handle 6, which is furnished with a cork sheath 5. The insulating body 16 and rod 15 are connected by a tube 22 with a sleeve 26 which encloses the wire leads and carries a pin 7 engaging with a helical slot in an outer sleeve 8 which can be turned by a button 10 to slide the sleeve 11 over its tail-piece 30. The point 1 may be of chrome-nickel alloy and may be mounted on or lined with a good conducting material, such as silver, or a bodly conducting metal.
Patent GB-905690-A (GB)
Title: Improvements in driving lamp control arrangement
Inventor: HOLLINS JESSE RICHARD
IPC: B60Q1/14
Filed: 1960-06-13
Abstract: 905,690. Road traffic signals on vehicles. SIGNAL-STAT CORPORATION. June 13, 1960, No. 20724/60. Class 118. A motor vehicle driving lamp control switch has three positions, one of which provides for the illumination of the pilot and parking lights, another the headlights alone, while the third provides for the flashing of the parking and pilot lights together. A rotary switch, Fig. 1, or a straight pull type switch (Fig. 2, not shown) may be used. When conducting arms 20, 25, 30 of switch 10 rest on contacts 21, 26 and 31 respectively, the tail TL, parking PL and pilot IL lights are illuminated. On contacts 22, 27 and 32 the tail and head HL lights are illuminated, a foot controlled switch FS allowing the headlights to be dipped. On contacts 23, 28 and 33, battery 12 is connected via flasher unit FL to the parking, tail and pilot lights so causing them to flash in unison to provide a danger signal to other road users, e.g. in case of emergency parking.
Patent GB-664460-A (GB)
Title: Improvements in or relating to transporting devices for transporting poultry folding units
IPC: A01K45/00
Filed: 1949-08-09
Abstract: 664,460. Poultry-house transport device. ROLFE, C. A. Aug. 8, 1950 [Aug. 9, 1949], No. 20753/49. Class 5(ii) Parallel bars 1 connected by cross-bars 2 and a draw-bar 4 to the power-lift of a tractor are engaged beneath side-projections 12 on a poultry-house 10. When the power-lift is actuated, the house 10 tilts about the projections 12, enabling a crossbar 9 to be adjusted beneath the run 11. The complete house and run are then drawn or pushed until supported by the crossmembers, whereupon removal may be effected by the tractor. The ends 6 of the bars 1 are fitted with domes to act as runners.
Patent GB-995536-A (GB)
Title: Improvements in textile yarns
IPC: D02G3/32
Filed: 1964-05-20
Abstract: 995,536. Yarns. KENDALL CO. May 20, 1964 [June 4, 1963], No. 20825/64. Heading D1W. A potentially elastic composite yarn comprises an elastic core strand 10- of natural or synthetic rubber, or spandex-, an inelastic retractable core strand or strands 12, which on being retracted stabilizes the yarn against elongation and which after the yarn has been knitted or woven into a fabric is either dissolved away or ruptured, and at least one wrapping strand 14. Strand 12 is preferably retracted by 40-50 per cent and thereby either reduces the extension of strand 10, if it is stretched, or causes strand 10 to buckle if initially unstretched. The retraction may be caused by heat-in the case of vinyl chloride/ vinyl acetate copolymer or plasticized cellulose acetate-, by moisture with or without heat-in the core of polyvinyl alchol-, or by chemical action. The effect of heat and moisture may gelatinize a polyvinyl alcohol strand and thus bond the wrapping strand 14 to core 10. The covering may be in the form of double-backed loops as shown and as produced by the method of U.S.A. Specification 3,078,654, or may comprise two helically wrapped strands. There may be a permanent, inelastic core strand-for example of nylon-to limit the elasticity of the yarn.
Patent GB-470532-A (GB)
Title: Improvements in and relating to electrical contact making and breaking devices
IPC: H01H50/54
Filed: 1936-07-28
Abstract: 470,532. Electromagnetic switches and switch contacts. ELECTRICAL APPARATUS CO., Ltd., and BARBOUR, R. H. July 28, 1936, No. 20871. [Class 38 (v)] Electrical contact making and breaking devices such as contactors switches and circuit breakers, particularly those used on A.C. circuits of the type comprising a moving contact mounted on a carrier, limited relative movement of the contact and carrier being permitted under the control of a spring have an additional spring between the carrier and the movable contact which acts as a flexible limit to the relative movement of the moving contact and carrier in the contact-opening movement the strength of the additional spring or springs thus varying the speed of separation of the contacts. As applied to an electromagnetic contactor of the type described in Specification 456,125, the contact carrier, as shown in Fig. 2, comprises insulating members 23, 33 carried by the armature 13 and biassed from the fixed core 12 by springs 17 surrounding guide pins 15, Figs. 4 and 5. The movable contacts consist of bars 18 slidable on guide rocks 28, adapted to bridge pairs of fixed contacts 19. The contacts are normally held relatively to the carrier by springs 21 acting on plates 24 engaging shoulders 25 in the contact housing additional springs 22 acting on the underside of the bars 18 to. hold them against the plates 24. As the armature is attracted on energization of the coil 11, the bars 18 are first moved against the contacts 19 by downward movement of the carrier after which further movement of the carrier takes place independently of the contact bars 19. During this movement the springs 21 press the contacts firmly into engagement. In the contact-opening movement when the electromagnet is deenergized the carrier is retracted by the springs 17, the contacts however remaining in engagement by the pressure of springs 21'until the plates 24 are engaged by the shoulders 25. Further movement of the carrier then lifts the plates 24 clear of the bars 18 which are then moved away from the contacts by the additional springs 22. The contacts are thus separated at a speed which is not necessarily the same as that which the contact-carrier has attained at the moment of the contact, separation and different speeds of separation may be produced by substituting different strengths of springs 22. The amount of relative movement of contacts and carriers in the opening movement is limited by stops 26. The relatively-fixed contacts may be substituted by contacts, movably mounted in the manner described above, and the moving contact or contacts may alternatively be operated pivotally.
Patent GB-1016858-A (GB)
Title: Magnetostrictive transducer
IPC: B06B1/08
Filed: 1964-05-20
Abstract: 1,016,858. Magrietostrictive transducers and liquid-level indicators; wave couplings; oscillators. LIQUIDOMETER CORPORATION. May 20, 1964 [May 23, 1963], No. 20907/64. Headings H3F, H3U, H4D and H4J. A magnetostrictive transducer operative with constant output from 20‹ to 400‹ K comprises an element energized by two magnetic fields, one unidirectional and the other oscillating at the resonant frequency of the transducer, so that the resultant field varies between values at which Á is a maximum at the extreme temperatures, and the mean value of the field corresponds to the intersection points of the Á/H curves for these extreme temperatures. Fig. 2 shows a transducer for sensing liquid level in a tank by the damping effect on oscillations of a diaphragm 15 mounted on the end of a magnetostrictive tube 16. The tube is separated by an insulating sleeve 17 (e.g. of polytetrafluorethylene) from coils 19, 22 and a permanent magnet 20, the whole being enclosed in a housing 12 attached to a boss 11 on the wall of the tank 2. The housing is attached to the wall by a brass collar 23 and pin 24, a spring finger 26 providing an earth return and an 0-ring 14 securing a liquid-proof joint. Recesses 12b and 12c prevent vibrations of the magnetostrictive element from being communicated to the tank. The coils 19 and 22, which are located at stress nodes of the tube, are connected to the input and output respectively of an amplifier which thus oscillates at the resonant frequency of the transducer at one of two amplitude levels corresponding to the presence or absence of liquid in the tank. Since the field due to the permanent magnet is stronger than that produced by the energizing coil the field never reverses its direction and the resonant frequency is the same as that of the current in the coil. The element 16 is slightly shorter than one wavelength of velocity distribution because of the loading effect of the diaphragm 15. The magnet is situated at the velocity node to minimize coupling between the coils other than via the element. The values of the fields due to the magnet and energizing coil are designed to fit the above relation and the element should be of a material which has a very low temperature variation of modulus of elasticity. The housing 12 and diaphragm 15 should be of low absorptivity for acoustic energy, e.g. austeritic stainless steel or aluminium alloy.
Patent GB-888988-A (GB)
Title: Unsaturated aliphatic amino-diols and process for their manufacture
IPC: C07D319/06
Filed: 1958-06-30
Abstract: The invention comprises amino-diols of the formula CH3.(CH2)n.A.CHOH.CHNH2.CH2O wherein A is a radical -CH=CH- or -C#EC-and n is an integer from 6 to 11, and salts and acyl derivatives thereof, in the form of their various isomers such as threo-, erythro-, cis- and transforms and optical antipodes.  It comprises also the preparation of these compounds either by condensing an aldehyde CH3(CH2)n.C#EC.CHO with b -nitroethanol reducing the resulting nitro compound CH3(CH2)n.C#EC.CHOH.CHNO2. CH2OH with an acid reducing agent (if desired after resolution into stereoisomers) to the corresponding 2-amino compound and if desired reducing the triple bond by catalytic hydrogenation, or with an alkali metal in the presence of an alcohol or with a dimetal hydride, to a double bond and/or acylating the product and/or resolving into optical antipodes and/or converting the bases into their salts; or by a modification of the above method wherein the intermediate diol of the formula CH3(CH2)n.C#EC.CHOH.CHNO2. CH2OH is reacted with an aldehyde to give a nitro-m-dioxane, the nitro group is reduced (if desired after isomerization by treating with an alkaline agent) and the resulting amino group acylated if desired and the dioxane ring is then split, e.g. by treating with an acid followed by conversion of the acyl derivatives to free bases, if desired.  Specified products include 1 : 3-dihydroxy - 2 - amino - heptadec - 4 - yne and -ene, 1 : 3 - dihydroxy - 2 - amino - tridec - 4 - yne and iene and 1 : 3 - dihydroxy - 2 - amino - pentadec - 4-yne and -ene and their acyl derivatives and salts in their various isomeric forms.  Alkyn-1-als of the formula CH3(CH2)n.C#E C.CHO used as starting materials, such as pentadec - 2 - yn - al - (1), undec - 2 - yn - al - (1) and tridec-2-yn-al-(1), are made by reacting an alkyl bromide with sodium acetylide in liquid ammonia, converting the resulting alkynes CH3(CH2)n.C#ECH into their metal derivatives e.g. with ethyl magnesium bromide, reacting with ortho-formic ester and hydrolysing the resulting diethyl acetal CH3(CH2)n.C#EC.CH (OC2H5)2. Specification 888,989 is referred to.
Patent GB-149192-A (GB)
Title: Method for generating and amplifying oscillations of any frequency, especially for wireless telegraphy
IPC: H04B1/16
Filed: 1920-07-12
Abstract: 149,192. Huth Ges., Dr. E. F., and Heller, W. July 17, 1918, [Convention date]. Wireless telegraphy; electric oscillations, producing.-Thermionic valves for generating and amplifying oscillations in wireless telegraphy have an oscillatory circuit connected between the grid and one of the main electrodes, and a choking- coil between the grid and the other main electrode. In the form shown in Fig. 2, an oscillatory circuit 6 is connected between the grid 3 and plate 4, the battery 5 being placed in the plate connexion. A choking coil 8, with or without an iron core, is connected between the grid 3 and filament 2. An aerial may replace the oscillatory circuit 6. When employed for heterodyne reception, a telephone may supplement, or be substituted for, the choking-coil. In a modification, the choking-coil is connected between the filament and the further side of the oscillatory circuit. The Specification as open to inspection under Sect. 91 (3) (a) refers also to an arrangement in which a variable high resistance and a condenser are connected between the grid and cathode, this being stated to affect a low-frequency amplification in receiving, and a tone pulsation in transmitting, the tone being adjusted by varying the resistance. In another modification, shown in Fig. 9 (Cancelled), the oscillatory circuit 6 is placed between grid 3 and filament 2, and the choking-coil 8 between the plate 4 and grid 3. A condenser 9 may be placed in the grid connexion, and the battery 10 may be placed either in the filament or plate lead. The plate may be connected through a condenser to the grid of a second valve. Other drawings accompanying the Specification as open to inspection under Sect. 91 (3) (a) are not described. This subject-matter does not appear in the Specification as accepted.
Patent GB-744094-A (GB)
Title: Stabilisation and steering devices for dirigible craft
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G05D1/00
Filed: 1953-07-29
Abstract: 744,094. Automatic steering systems. SMITH & SONS (ENGLAND), Ltd., S. July 16, 1954 [July 29, 1953], No. 20995/53. Addition to 707,388, [Group XXIX]. Class 38 (4). [Also in Group XXIXI An improvement in the aircraft control system of the parent Specification comprises means for adjusting the anchorage of a spring 407 to maintain the aircraft on a course or at a pre-set height &c. The anchorage consists of an arm 451 movable about a point 452 by an electric motor 453. A pre-set barometric capsule 462 for detecting deviation in height and a rate of climb instrument 464 send signals to a differential device 461, the output of which passes through a switch 460 to a differential 458, the other input to which is a feedback from an electric pick-off device 455 positioned by the arm 451. The output of the differential 458 is fed to a further differential 457 which is also fed by a tachometric signal generator 454 driven by the motor 453 to provide a damping feedback signal. The output from the differential 457 passes through an amplifier 456 and switch 459 to the motor. The arrangement is such that when the demand signal from the differential 461 is reduced to zero or when the switch 460 is opened the pick-off 455 will be brought in a substantially exponential subsidence to its zero position. The spring 407 controls the elevators. In a modification, the spring controls the ailerons in response to signals from a compass repeater and a radio beam receiver. In a further modification, the rudder is controlled in response to signals from a sideslip pendulum similar to that in Specification 611,037 in conjunction with' an electromechanical integrator whereby the control is in accordance with the sideslip and the time integral thereof. The integrator may be eliminated by a switch.