baber/WOPTO huggingface dataset:
Patent GB-986666-A (GB)
Title: Electric control circuits and systems
IPC: H04B17/40
Filed: 1961-04-19
Abstract: 986,666. Controlling unattended repeater stations. WESTERN ELECTRIC CO. Inc. April 19, 1961 [April 25, 1960], No. 14136/61. Headings H3T and H4R. A signal detector comprises an amplifier 33 having a gain spike at a particular frequency (f 2 ) whose output passes to a narrow band-pass filter 63 followed by level discriminating means. The system is one in which several controlling frequencies, all within a narrow band, may be involved, the amplifier being responsive to one of these frequencies but the filter 63 passes any of them thus enabling a standard filter to be used for all detectors in the system. The invention is applied to the switching in of stand-by repeaters in a submarine cable. As shown, main and stand-by amplifiers 32, 33 are connected to the input transformer 36, the stand-by amplifier having an input resistance 39 in circuit to reduce its effectiveness. Main amplifier 32 has its output connected via leads 51 to the outgoing cable. A control signal f 2  received from a terminal station has a frequency which disables the negative-feedback circuit which includes a crystal resonant at f 2 , so that the gain of the amplifier is increased at this frequency. At normal levels signals of this frequency are used to test the condition of the amplifier, by their measurement on receipt at the distant terminal. However, for effecting switching this frequency is transmitted at a higher level, the amplifier output feeding filtering and biased detecting apparatus whereby the higher level signals cause relay 70 to operate and switch in amplifier 33 as the main amplifier and relegating amplifier 32 to the stand-by position. All the control signals f 1  . . . f n  for all the amplifiers in a chain lie in a band outside the speech range and the filter 63 will pass any of them. Power for the amplifiers is derived from the potential drop over resistor 27 due to D.C. received over the cable conductors. Specification 702,397 is referred to.
Patent GB-756243-A (GB)
Title: Purification of organic nitriles
Filed: 1954-05-17
Abstract: A liquid mixture of isomers of 1 : 4-dicyano-2-butene and 1 : 4-dicyano-1-butene melting in the range 2-8 DEG  C. is prepared from crude 1 : 4-dicyano-2-butene (obtained from dichlorobutene and hydrogen cyanide, and contaminated with chlorine-containing impurities) by agitating (preferably at 0-70 DEG  C.) a solution thereof in an inert organic solvent with a quantity of aqueous alkali metal hydroxide which will produce a pH of 10.5 to 12.0 in the water layer after separation of the phases, further agitating the separated dicyanobutene-solvent phase with 0.3-5 per cent by weight (based on dicyanobutene) of alkali metal hydroxide in aqueous solution for 5-30 minutes at 50-70 DEG  C. until the 1 : 4-dicyano-2-butene is isomerized to a mixture melting in the range 2-8 DEG  C., separating the phase comprising the mixture of isomers in the organic solvent and distilling the latter in presence of ethylene oxide or propylene oxide in a stainless steel vessel, whereby corrosion of the steel is avoided, and a distillate fraction containing the mixed isomers is obtained.  The alkali hydroxide is preferably sodium hydroxide and the inert organic solvent is preferably benzene.  Specifications 639,438, [Group IV (a)], and 756,242 are referred to.
Patent GB-722511-A (GB)
Title: Improvements relating to mass flow monitors
Inventor: GREY JOHN CONSTANTINE
IPC: G01F1/88
Filed: 1952-06-11
Abstract: 722,511. Temperature-responsive actuating- elements. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 11, 1952. [June 18, 1951] No. 14439/51. Class 64 (2). [Also in Groups XIX and XXIX] A mass flow monitor (see Group XXIX) comprises a temperature -responsive means of the mercury-insteel type, in which a leafspring 13 (shown in Fig. 3 applied to an absolute pressure responsive means) is attached to the outputdisplacement rod 11 and is supported on an abutment cam 15 so that the free length of spring available is in logarithmic relationship with the displacement of the rod and the displacement is therefore directly proportional to the logarithm of the temperature.
Patent GB-553240-A (GB)
Title: Improvements in bearings
IPC: F16C23/04
Filed: 1941-11-10
Abstract: 553,240. Bearings. JAMESON, J. L. Nov. 10, 1941, No. 14484. [Class 12 (i)] The two parts of a taper bearing for a driven shaft are provided with secondary means normally stationary but capable of relative motion for adjustment for drag or torque reaction. The spindle 1, of a grinding machine with grinding wheels 3, 4, is mounted in frame parts 5, 6 and carries taper sleeves 8, 9 movable axially against springs 10. The sleeves are caused to rotate with the spindle by toothed rings 14, 15 pinned or pegged to the sleeves 8, 9 and spindle 1 respectively, or links may be used to effect the rotation. Instead of holding the spindle against axial movement, the tapered sleeves may be integral with the spindle, and the sleeves may be associated with a driving sleeve which is held against axial movement but is coupled to a motor, the associated sleeves having a toothed engagement. The sleeves 8, 9 may be slotted or grooved to provide radial resilience.
Patent GB-886682-A (GB)
Title: Transfer mechanism for roller platforms
IPC: B65G47/54
Filed: 1958-05-07
Abstract: 886,682. Roller conveyers. BURTON, R. C. Aug. 7, 1959 [May 7, 1958], No. 14606/58. Class 78 (1). An article resting on roller platform 1 is displaced therefrom on to roller platform 4 by means of reciprocating grid 50. The grid is carried by wheels 17, 18 moving in channels 9, 10, 12 and is propelled by fluid cylinder 21 so that, as it moves left-right in Fig. 1, it rises above platform 1, thus lifting up the article and transferring it rightwards till the grid drops to leave the article on platform 4, the grid then returning leftwards to complete the cycle. In this way, an article may be transferred from one belt conveyer to another, the roller platforms forming, respectively, the delivery station of one conveyer and the feeding station of the second conveyer.
Patent GB-1008004-A (GB)
Title: Xerographic developing apparatus
IPC: G03G15/10
Filed: 1962-04-16
Abstract: 1,008,004. Developing electrostatic images. RANK-XEROX Ltd. April 16,1962 [April 17, 1961], No. 14613/62. Heading G2H. An apparatus for developing electrostatic latent images comprises means to support a xerographic plate 18 and two reservoirs 24, 25 for containing a liquid carrier of high resistivity for electroscopic developer material, the liquid in reservoir 25 having a high concentration of developer material, the liquid in reservoir 24 having a lower concentration. The plate 18 is seated in a recess of support member 19 and is covered with a hinged cover plate 16. An electrically biased electrode (not shown) may be positioned opposite the recess. Valves 26, 27 selectively isolate reservoirs 24, 25 or may be adjusted by a regulating device to maintain a desired concentration in the liquid circulated by pump 11. An electrostatic separator 40 has electrode plates 41, 42 having opposite polarities. Outlets 44, 45 pass liquid of low concentration and high concentration to the reserviors 24, 25 respectively. An exposed plate 18 is developed by opening valve 27 and causing pump 11 to circulate developer under manual or automatic control of pump 11. After scanning or otherwise utilizing the developed image the plate is returned to support member 19 for cleaning by brush 51 moved back and forth across plate 18 simultaneously with the flow of clear developer liquid. In another embodiment, Fig. 2 (not shown) an endless flexible plate 63 having a photoconductive backing is continuously advanced past a corona device 64 and a cathode ray tube 66. The plate is developed in a reservoir 70 and the developed image is projected on to a screen 85 the plate being cleaned by brushes 88 in a second reservoir 87. In another embodiment Fig. 3 (not shown), the developed image is transferred to a receiving web 101 instead of being projected, Fig. 2 (not shown). The web 101 Fig. 3 (not shown) may be cut into lengths or wound into a roll.
Patent GB-429708-A (GB)
Title: Improvements in piles employed in the construction of dams, piers and other structures
IPC: E02D23/00
Filed: 1934-05-15
Abstract: 429,708. Foundations. JENSEN, J., Aagaard, Starup, Vejle, Denmark. May 15, 1934, No. 14663. Convention date, May 15, 1933. [Class 68 (ii)] Tubular pile elements have parallel sides 19, 20, front and back surfaces 21, 22 either or both of which is inclined and connecting-devices. The piles may be trough-sectioned, and joined so as to form with the adjacent members a series of tubular members, or each may be built up of several parts. Bridge foundations are formed by a ring of such elements forming a structure adapted to be filled with concrete.
Patent GB-353968-A (GB)
Title: Improvements in and relating to electrical regulators
IPC: H02P9/24
Filed: 1930-05-13
Abstract: 353,968. Automatic regulation; dynamos. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, TAYLOR, H. W., Kilmorie, Bilton, near Rugby, STEWART, C., 49, Mansfield Road, Luton, and PARRY, R. D., Pen Bryn, Northway, Neasden, Middlesex. May 13, 1930, No. 14744. [Classes 35 and 38 (iv).] Exciting.-To equalize the rate of response of the exciting current to circuit changes produced by a Tirrill or other vibrating regulator 2 as between opening and closing the short circuit on a resistance 4 in the exciting circuit of a dynamo 5, an auxiliary winding 17 on the field system, inductively related to the main exciting winding 7 is short circuited directly or through a resistance. When it is desired only to reduce the rate of response when the exciting current is falling this short circuit is closed only at such times, either by placing a rectifier of any kind in series with the auxiliary winding or providing auxiliary contacts 18 on the main regulator or its relay 3 which close when the resistance short-circuiting contacts open or just before that instant.
Patent GB-283405-A (GB)
Title: Needle-thread controller for sewing machines
IPC: D05B49/04
Filed: 1927-06-02
Abstract: 283,405. Fairweather, W., (Singer Manufacturing Co.). June 2, 1927. Governing needle thread. - In a lock-stitch machine having a rotary take-up comprising spaced discs 17 provided with a take-up pin 19 and a slack-thread controlling pin 20, the thread is directed to the take-up by an elongated aperture 25 in a bracket 26. The thread thus passes to the take-up pin at substantially different levels at the beginning and ending of each loop drawing-up movement. The slot 25 is positioned to direct the thread at a substantial angle to the direction of its lead from the tension device.
Patent GB-272680-A (GB)
Title: An improved folding carrier, for electric accumulators and the like
IPC: H01M2/10
Filed: 1926-06-11
Abstract: 272,680. Loveland, H. F. June 11, 1926. Parcel and like carriers.-A carrier for electric accumulators and the like comprises side and end frames of lattice formation the lower ends of the members a, b forming the frames being connected pivotally to angled corner- or side-lugs c, e, adapted to engage under and support the article to be carried. The side members a are similarly connected to corner pieces f which carry headed studs f<2> riding in slots b<3> in the upper ends of the members b. Carrying straps g of leather, which may be rubber finished, are suitably attached to the members b. The lattices are preferably of steel and may be suitably painted or enamelled.
Patent GB-928076-A (GB)
Title: Gun for extruding thermoplastic material
Inventor: GARDENER REGINALD HARRY
IPC: B29C48/03
Filed: 1960-04-27
Abstract: An extrusion gun (see Group XXVIII) for discharging heated thermoplastic material may be used to inject the material into a die to encapsulate cables or the gun may be fitted with extrusion dies for producing lengths of material of various shapes.
Patent GB-219772-A (GB)
Title: Method of improving coke as fuel for stoves and the like
IPC: C10L5/04
Filed: 1923-06-06
Abstract: 219,772. Habets, W. June 6, 1923. Composition fuel.-Coke pieces are stirred in water in which brown coal dust or impure bituminous coal sludge is suspended and remain in the bath for 12 to 24 hours, after which they are immersed in a pulpy fluid of similar composition to receive a coating. Clay may be added in conjunction. with the sludge to retard the rate of combustion. Small coke treated in this manner may be briquetted. Reference has been directed by the Comptroller to Specifications 20001/10, 100,968, 146,264, and 180,661.
Patent GB-807895-A (GB)
Title: Improvements in or relating to coating compositions
Inventor: CRISSEY LAVERNE WILLIAM
IPC: C08F20/14
Filed: 1955-05-23
Abstract: A coating composition comprises a polymer of methyl methacrylate having a relative viscosity of 1.117 to 1.196 inclusive and a solvent therefor.  The polymer may be polymethyl methacrylate or a copolymer of methyl methacrylate with acrylic or methacrylic acid, an acrylate or methacrylate, vinyl acetate, acrylonitrile or styrene.  Relative viscosity is measured using ethylidene dichloride as solvent, and the above figures correspond to molecular weights of 55,000 to 105,000. The solvent may be acetone, ethyl acetate, ethylene glycol monoethyl ether, benzene, toluene or xylene; non-solvents, such as alcohols and aliphatic hydrocarbons, may be included.  The composition may include a plasticizer such as dibutyl, benzyl butyl, 2-ethyl hexyl benzyl, dicyclohexyl, diallyl, dibenzyl or di (methyl-cyclohexyl) phthalate, triphenyl or tricresyl phosphate, mixed benzoic and fatty oil acid esters of pentaerythritol, poly (propylene adipate) or diethylene glycol dibenzoate, tetrabutylthiodisuccinate, butyl phthalyl butyl glycolate, acetyl tributyl citrate, dibenzyl sebacate, toluene ethyl sulphonamide and the di 2-ethyl hexyl ester of hexamethylene diphthalate. Pigments such as titanium dioxide, phthalocyanine green, milori blue, carbon black, Prussian blue, Chinese blue, phthalocyanine blues, metal oxides, hydroxides, sulphides, sulphates, silicates and chromates, organic maroons, aluminium flake, bronze powders, pearl essence and fillers or extenders such as talc, barytes, china clay and diatomaceous earth may be incorporated.  The composition may also contain other film-forming materials such as cellulose nitrate, alkyd resins and polymers of acrylates and methacrylates other than methyl methacrylate.  Specification 763,158 is referred to.
Patent GB-1355551-A (GB)
Title: Coil springs
IPC: F16F1/04
Filed: 1971-05-14
Abstract: 1355551 Coil springs HOESCH AG 14 May 1971 [6 June 1970] 14895/71 Heading F2S A coil spring with at least partly progressive force-deflection characteristic is wound at least partly from wire of so-called "truncated ogive" form i.e. wire whose diameter d varies with its distance l from the end of the wire in such a way that where Co = specific elasticity. G = modulus of elasticity. d max  = maximum diameter of wire. d o  = minimum diameter of wire. D=average diameter of the coil spring turns. The progressive part of the force-deflection characteristic is required to satisfy the following equation where X max  is the total displacement of the spring over the whole of the progressive part, P max  is the force corresponding to the displacement X max , X is the displacement representing a portion of the progressive part, and P is the force corresponding to the displacement X. With the truncated ogive wire the torsional shearing stress has the same value at any point along the wire.
Patent GB-827192-A (GB)
Title: Improvements in or relating to a cathode ray apparatus
Inventor: MCNANEY JOSEPH THOMAS
IPC: H01J31/16
Filed: 1956-05-14
Abstract: 827,192. Cathode-ray tubes. GENERAL DYNAMICS CORPORATION. May 14, 1956, No. 14907/56. Class 39 (1). In a cathode-ray tube, e.g. for displaying images in the form of characters, such as the letters of the alphabet and numerals, the beam is superimposed over a plurality of charactershaped apertures 30, Fig. 4, in a member 16 and one or more of the electron streams produced are selected and directed to the target. In one embodiment single characters are displayed in succession on the same area of the Only that area of the target is made electron sensitive and the selected streams fall on insensitive areas of the target. In Fig. 1, the required streams are selected by deflecting them, by pairs of deflection plates 18, 19, or magnetically, over the aperture 22 in an electrode 21. The beam shaping member 16 is within the first accelerating electrode 16 and the resulting character-shaped electron streams are focused at the deflection plates 18, 19 by the lens action of first and second anodes 14, 15. The selected streams are directed to different parts of the target 24 by a single coil 23, where a single line of characters only is desired on the target, or by a pair of coils for both vertical and horizontal deflection. Electrostatic deflection may be used. The beam shaping member 16 may be located between the cathode 11 and the control electrode 12, Fig. 5, or after the anode 14, 15. In Fig. 8, the electron streams are made parallel after passing through the member 16 by a coil 42 and are deflected over the apertured disc 21 by a pair of mutually perpendicular coils 43.
Patent GB-718554-A (GB)
Title: Improvements relating to electrically-operated remote-control apparatus
IPC: G05D3/12
Filed: 1952-06-13
Abstract: 718,554. Follow-up systems. AKTIEBOLAGET BOFORS. June. 13, 1952 [June 15, 1951], No. 14967/52. Class 40 (1). In a power driven follow up device, wherein the usual error voltage ' derived from magslips 6, 8, driven by the controlling and controlled members, e.g. a sight 1 and a gun 14, is fed through an A.C. amplifier 15, phase detector 16, D.C. amplifier 17 and output stage 19 to control the follow-up motor 13, a filter network 18 is included, preferably in the D.C. portion of the amplifier chain, to produce a large positive phase displacement of the applied signal within a narrow frequency range e.g. 5-15 cycles/second where oscillation would occur in the absence of the filter, but only a small increase is in the amplification curve (ratio of output to input signal expressed as a function of frequency) within said narrow range and at higher frequencies. Frequencies in the ranges 0-5 and 5-15 cycles/second are found to occur in the error signal envelope, the frequencies in the higher, only, of these ranges tending to produce oscillation of the system. The lattice filter shown or a T filter is used.
Patent GB-1470684-A (GB)
Title: Electric drives for winding devices
IPC: H02P5/51
Filed: 1974-04-04
Abstract: 1470684 Electric drive for winding machines INDUSTRIE-WERKE KARLSRUHE AUGSBURG AG 4 April 1974 [16 April 1974] 14974/74 Heading DID A winding device in combination with an electric drive which operates at constant speed comprises a dual current motor energisable by DC to effect rotation of its armature and to deliver AC during such rotation, and vice versa, wherein the motor is arranged to be coupled selectively by mechanical and/or electrical means to a winding device for the purpose of driving the latter. The electrical coupling means may comprise a synchronous motor which is supplied with AC which is in turn drivingly connected to the winding device. Alternatively, a DC motor may be used as the coupling means. As described, the dual current motor (Fig. 2) comprises a commutator 15 and slip rings 16 on the shaft of armature 17 so that it is capable of operation as a DC motor and a 3- phase synchronous motor. In Fig. 3 (not shown) DC is supplied to the dual current motor which drives a winding bobbin (13). An AC supply from the dual current motor is used to drive the synchronous motor 21 of a yarn transverse device. In Fig. 4 the synchronous motor 21 may be briefly connected to a separate AC supply to vary the winding pattern. In Fig. 5 (not shown) the DC supply is used to drive the dual current motor at the commencement of winding and it is connected to an AC supply (and acts as a synchronous motor) for the main winding operation. In Fig. 6 (not shown) a first dual current motor drives a first winding unit and supplies AC curent to a dual current motor and synchronous motor of a second winding unit. In Fig. 7 (not shown) a plurality of dual current motors all connected via resistances to a single DC source, and the AC currents from the motors drive synchronous motors 21 which are all connected in parallel. In Fig. 8 (not shown) a dual current motor acts as an AC generator for other dual current motors and associated synchronous motors 21 connected in parallel. In Fig. 9 dual current motors are accelerated to winding speed by a common DC source and then switched to an AC supply for the main winding operation. In Fig. 10 (not shown) an AC supply is used to drive a dual current motor and DC generated thereby is used to supply a DC motor of a traverse device on the winding unit.
Patent GB-215987-A (GB)
Title: Improvements in flat-wick blue-flame oil burners
IPC: F23D3/00
Filed: 1923-06-08
Abstract: 215,987. Rippingille's Albion Lamp Co., Ltd., Thorpe, A. E., and Walter, A. H. June 8, 1923. Wick burners, flat-flame, blue-flame having two separate wick tubes a, c, with broad wicks, are provided with a rigid ascending lip j at the outer side of each wick tube, the lip leaning inwardly against the side of the wick so as to push it under the spreader f<3>, and forming with a lip f<4> of the cone f a narrow air passage l. A perforated baffle plate m may extend from the wick tubes a distance below the air passage. The lip and baffle plate conveniently comprise a single metal strip soldered to the wick tube.
Patent GB-735560-A (GB)
Title: Apparatus for stabilising the flames of gas burners
IPC: F23D14/74
Filed: 1952-05-28
Abstract: 735,560. Gas burners. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. May 28, 1952 [May 30, 1951], No. 15057/54. Divided out of 735,519. Class 75 (1). A gas burner has an elongated burner head having a plurality of flame discharge orifices arranged in two sets disposed longitudinally thereof, each set comprising a plurality of mutually inclined orifices so arranged that the discharge axis of an orifice is inclined with respect to one or more of the discharge axes of adjacent orifices and the spacing of the orifices is such as to promote flame stabilizing whirls between adjacent burning jets, and all the orifices of a set are inclined outwardly with respect to the orifices of the other set and to the burner head. The two sets of flame discharge orifices 22 are each formed in two parallel rows by disposing in each of two gaps between outwardly inclined walls 17, 18 of the burner head 16 and the adjacent sides 20, 21 of an angle member 19, a bar 23 on which is wound a wire 24 of circular or triangular section. The axes of the orifices 22 in each row are parallel, but in each set the axes of the orifices of one row are inclined to those of the other row.