baber/WOPTO huggingface dataset:
Patent GB-626739-A (GB)
Title: Improvements in or relating to frequency discriminator circuit arrangements
IPC: G01R29/06
Filed: 1947-02-06
Abstract: 626,739. Frequency measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FORBES, I. S. Feb. 6, 1947, No. 3582. [Class 37] [Also in Group XL (c)] A frequency discriminator circuit for use in frequency-modulated carrier wave receivers and monitors for indicating changes in the mean frequency, and also the amount of modulation, comprises a pair of tuned circuits 1, 2, coupled inductively and by the condenser .3, the secondary circuit 2 being connected to two pairs of oppositely-poled rectifiers 5, 6 and 17, 18. The rectifiers 5, 6 are associated with load resistors 7, 8, their junction 9 being connected to earth through one winding 25 of a meter 24, and a resistor 27. Similarly, the rectifiers 17, 18 are associated with load resistors 20, 21, meter winding 26 and resistor 28. When the carrier wave deviates in frequency from that of the tuned circuits 1, 2 the voltage rises at one side of the circuit 2 and falls at the other. This causes rectified currents of opposite sign to appear in the windings 25, 26 and the meter pointer moves from a central zero position to indicate the frequency departure. Rapid alternations of frequency deviation do not affect the meter which is shunted by condensers 29, 30 and responds only to changes in the mean frequency. The modulation is indicated or monitored by voltages derived from the resistances 27, 28. The meter 24 may be replaced by a simple meter connected between the junctions 9, 19. The centre tap connection from the circuit 1 to the circuit 2 may be effected between two sections of a split tuning- condenser. The centre-tap is connected to earth through a choke coil 14 and resistor 12. Specification 556,057 is referred to.
Patent GB-928987-A (GB)
Title: Foaming agent for cellular concrete
IPC: C04B24/14
Filed: 1961-01-31
Abstract: A foam generating agent for the production of cast cellulan concrete comprises an aqueous solution of an alkali metal salt of an alkyl aryl sulphonate and a degraded protein, the salt having a molecular weight of 210-575, the salt to protein ratio being from 1 : 2 to 2 : 1 and the foam generating agent containing less than 5% by weight, based on the weight of the alkali metal salt, of water-soluble inorganic metallic salts.  Specified are: alkali metal salts: the sodium sulphonate of dimethyl naphthalene (2 parts) and the nonyl derivative thereof (1 part), and the sodium sulphonate of dimethyl naphthalene used alone; and degraded proteins prepared from hide glue or dried blood or prepared by the action of a proteolytic enzyme on gelatin.  Thiourea, urea or a soluble thiocyanate may be included in the foaming agent to decrease its viscosity.ALSO:Cast cellular concrete is made using as a foam generating agent an aqueous solution of an alkali salt of an alkyl aryl sulphonate and a degraded protein, the salt having a molecular weight of 210-575, the salt to protein ratio being from 1 : 2 to 2 : 1 and the foam generating agent containing less than 5% by weight, based on the weight of the alkali salt, of water-soluble inorganic metallic salts.  Specified are alkali salts the sodium sulphonate of dimethyl naphthalene (2 parts) and the nonyl derivative thereof (1 part), and the sodium sulphonate of dimethyl naphthalene used alone and degraded proteins prepared from hide glue or dried blood or prepared by the action of a proteolytic enzyme or gelatin. Thiourea, urea or a soluble thiocyanate may be included in the foaming agent to derease its viscosity.
Patent GB-1287418-A (GB)
Title: Gas detectors
IPC: G01N21/69
Filed: 1969-01-22
Abstract: 1287418 Gas detectors BRITISH OXYGEN CO Ltd 16 Jan 1970 [22 Jan 1969] 3599/69 Heading G1N In a glow discharge gas impurity detector, the gas is passed through a substantially fluid tight chamber 1 via a substantially constant bore capillary inlet tube 6 and an outlet tube 7 connected to a suction pump, the chamber enclosing a pair of electrodes, e.g. a spark plug 4, or a pair of single electrode spark plugs aligned end-toend, Fig. 5 (not shown). A discharge is set up by supplying a sufficiently high voltage to the electrodes, and when discharge occurs a direct voltage is supplied which is below the level at which discharge tends to fail but above the maximum level at which discharge can occur in the gas. Should discharge fail at this lower level, discharge is restarted by supplying the first voltage. Thus, the lower D.C. voltage is the operating voltage of the detector, sensitivity being then greater. As shown, in Fig.3, the electrodes 21 are connected to a stabilized D.C. supply 22 and to an unstabilized supply 23. When no discharge occurs across the electrodes, the supply 23 acts there across to start the discharge. As soon as the discharge starts, the voltage from supply 23 is reduced to a small value due to the ohmic drop across resistor 24, and thus the voltage from supply 22 acts on the electrodes. The circuitry shown in Fig.3 may be arranged in a bridge circuit, Fig.2 (not shown), and the detector may be connected to the output of a chromatograph, Fig.4 (not shown). Constructional details and materials of the chamber are given.
Patent GB-1261502-A (GB)
Title: Multiple spindle automatic lathe
Inventor: LEDERGERBER ALFRED
IPC: B23Q1/26
Filed: 1970-01-26
Abstract: 1,261,502. Multi-spindle lathes. WERKZEUGMASCHINENFABRIK GILDEMEISTER & CO. A.G. 26 Jan., 1970 [27 Jan., 1969], No. 3664/70. Heading B3T. [Also in Division F2] In a multiple spindle automatic lathe in which the spindles 11 are carried in a spindle drum 12 each spindle is mounted in bearings constituted by pressure pads 131, 141 which co-operate respectively with conical surfaces 112, 111 at each end of the spindle, the pads being located in sleeves 13 and 14 respectively the pad 141 with its sleeve 14 being urged into engagement with the conical surface 111 by spring discs 15 which are biased against the drum 12, the springs permitting a predetermined load to be applied to the pads 131, 141 and their respective conical surfaces, the spring bias being adjustable by a ring nut 16 surrounding the spindle and engaging a threaded ring secured to the drum. Adjacent the sleeve 14 and pad 141 is an annular cylinder 22 and piston 21 which abuts the sleeve 14 whereby when pressure fluid e.g. oil is supplied to the cylinder 22 the piston is displaced and causes axial displacement of the sleeve 149 the pads 141 to relieve the pressure from the conical surface 111 and hence the conical surface 112 at the other end of the spindle. The control of the pressure fluid supply is effected from a distributer, mounted at the rear of and coaxially with the spindle drum 12, and comprises a bush 25 and a control piston movable therein, the bush being secured to a central member 27 which in turn is attached to an indexable control wheel 28. Fluid under pressure controlled by a three way valve 43 is supplied to the piston and by way of selected conduits is supplied to the spindles in dependence on the operational loading requirement whereby improved static and dynamic stability of the spindles is achieved. The construction indicated in Figs. 4-7 (not shown) is described with reference to an eight spindle lathe.
Patent GB-948621-A (GB)
Title: Device for dilating and dispensing material to body cavities
IPC: A61M31/00
Filed: 1960-02-02
Abstract: 948,621. Medicament introducers. H. W. WALDEN, and R. H. WALDEN. Feb. 2, 1960 [March 6, 1959; Nov. 16, 1959], No. 3730/60. Heading A5R. A device for introducing liquids or pastes into body cavities comprises a dispensing device, for connection to a supply container, mounted on a pressfitted end cover for a tubular dilating means. In one form the perforated dispensing tube 208 is carried in an end closure 226 attached to a cylindrical body member 212 by a boss 224 pressed into an inwardly directed portion 222. Two semi-cylindrical jaws 206, pivoted to the body 212 at 210<SP>1</SP> and 210<SP>11</SP> form the dilator and are spread apart by finger members 216. They may have longitudinal slots 206 to allow liquid from the dispenser orifices 209 to pass into contact with the walls of the body cavity. The container 234, which is preferably of the pressurized type and may have a valve member 236 which is opened by axial or sideways movement, is  preferably attached to the device by engaging in a recess in the outer face of the cover member 226. Specification 948,622 is referred to.
Patent GB-245619-A (GB)
Title: Improvements in and relating to gas burners
IPC: F24C3/12
Filed: 1925-02-10
Abstract: 245,619. Lyons & Co., Ltd., J., and Steel, W. A. Feb. 10, 1925. Valves actuated indirectly.-In apparatus for regulating the supply of gas to the burners of gas stoves by vertical or lateral displacements of the utensils the regulating device consists of a rocking lever 5, pivoted at the point 6, and having at one end a curved surface 7 extending normally above the surface of the stove; the other end 8 of the lever consists of a counterbalance weight which is connected by link mechanism 10 to the gas supply valve 13. The curved surface 7 is of openwork form, and the counterbalance may be formed as a bell to act as a shield for the gas valve.
Patent GB-305491-A (GB)
Title: Improvements in copy-holders for typewriters
IPC: B41J29/15
Filed: 1929-02-04
Abstract: 305,491. Vannoise, R. O. F. M. de. Feb. 2, 1928, [Convention date]. Copy-holders.-A copy-holder having a supporting frame, which is adapted to receive a typewriter within it, comprises a rectangular base-frame formed of tubes or bars 1, 1', Fig. 2, the side tubes having slidably mounted on them transverse bars 3, which can be clamped in position by set-screws. The bars are provided with cups 4, which are adapted to receive the feet of the typewriter, and are formed in members sliding on the bars. Vertical tubes 7, Fig. 4, which may be telescopic, support a copy-holding casing 8, which can be held in any desired angular position by means of spring pins engaging holes in the boring-members. The copy passes between a roller 35, mounted in the casing 8, and a roller 37, mounted in a hinged casing 8<1> and pressed by springs against the roller 35. The roller 35 is advanced step by step by ratchetmechanism, operated by a lever 27, rod 24, and key-lever 19. The feed can be adjusted by means of a set-screw 42. The copy is inserted through a slot 47 in the casing 8, and leaves through a slot 46. The casing may be raised to an inclined position, so as to support a book, the lower edge of which rests on a shelf adjustably clamped to the uprights 7. The matter to be copied may be suspended from screw pins fixed on the casing 8, and the pins may serve for suspending an electric lamp.
Patent GB-650330-A (GB)
Title: Improvements in and relating to screw, stud and like fastener members
IPC: F16B37/04
Filed: 1948-02-09
Abstract: 650,330. Anchor nuts; stud-and-socket fastenings. UNITED-CARR FASTENER CORPORATION. Feb. 9, 1948, No. 3770. Convention date, Feb. 8, 1947. [Classes 44 and 89(i)] A nut is secured to a member 1 having an elongated opening 4 by means of hooks' 19, formed on a support 16 for the nut or on the nut itself, that pass through the maximum diameter of the opening but on rotation engage and grip the sides of the opening at the minimum diameter as shown in Fig. 2. The support has flanges 18 that floatingly receive the flanged base 11 of the nut which is retained in the support by upturned resilient extensions 14 of the base that are shaped to house locking engagement with the thread at 15. The nut pusher is a threaded barrel drawn from the material of the base. In a modification the hooks 29, Fig 7, are integral with the nut base which has an upturned polygonal flange 32 for spanner engagement. In a form suitable for use with a stud member formed with radial arms as described in Specification 557,676 an annular base 21, Fig. 12, having upstanding arms shaped at 22 to engage the stud, is secured to an anchoring member 25 by lugs 27 thereof other lugs 28 (not shown) being formed on the underside to engage with the support. Specifications 651,270 and 3771/48 (as open to inspection under Sect. 91), are referred to.
Patent GB-700514-A (GB)
Title: Improvements in or relating to magnetic recording tapes
Inventor: WOOLER JOHN
IPC: G11B5/708
Filed: 1951-02-17
Abstract: 700,514. Magnetic sound records. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 14, 1952 [Feb. 17, 1951], No. 3892/51. Class 40 (2). A thin magnetic record tape comprising a thin flexible smooth film has a reverse side which is rendered matt for the purpose of preventing the tape winding up on a reel tightly enough to cause crinkles and other irregularities to be impressed on to neighbouring convolutions and introduce distortion into the recording. The matt surface may be provided by mechanical abrasion, imprinting after application of heat, or coating by finely divided materials and paint, or by adhesive material having a matt surface.
Patent GB-797077-A (GB)
Title: Improvements in or relating to electric signal transmission systems
Inventor: SCOWEN FRANK
IPC: H04B3/04
Filed: 1955-02-09
Abstract: 797,077. Unattended repeaters. POSTMASTER-GENERAL. Feb. 6, 1956 [Feb. 9, 1955], No. 3925/55. Class 40 (4).. In a signal transmission system, each of a chain of repeaters, is provided with an equalizer which is ineffective over a narrow frequency band for test purposes. The narrow band is indentical in all repeaters and cumulative equalization is effected at the receiving end or at regular intervals along the path. The arrangement is used for the location of a source of spurious signals, by measuring the level of such signals within and without the narrow band. In a system having a large number of repeaters equalization is not effected in two narrow bands common to each repeater, but cululative equalization is effected at intervals, the intervals being chosen to be differing primers so that a repeater generating spurious sounds can be uniquely located.
Patent GB-723799-A (GB)
Title: Improved sewing machine
IPC: D05B35/02
Filed: 1952-02-14
Abstract: 723,799. Sewing-machines. REDMAN, D., and STONE, L., [Representatives of REDMAN, L.], and REDMAN, Ltd., L. & D. Feb. 16, 1953 [Feb. 14, 1952], No. 4005/52. Class 112. A sewing-machine comprises a reciprocating needle 25; a slotted throat plate 23; a presser foot (not shown); a reciprocating feed dog 26; a guide tongue 28 which is attached to the feed dog and is movable in a slot in the throat plate, a face of the guide tongue being located in a vertical plane adjacent to and directed towards the needle and the leading edge of the guide tongue being forward of the needle; a resilient arm 14 fixed at one end so that its free end presses lightly upon the work table adjacent the needle; and a guide block 20 mounted on the free end of the arm 14, a side wall 21 of the block being spaced longitudinally from and directed oppositely to, but in approximately the same plane as, said face of the guide tongue, and a wedge shaped slot 22 being formed in the wall 21 with its thin end trailing. The feed dog is carried by a feed arm 27. The leading edge of the guide tongue is chamfered as at 32. The arm 14 is adjustably mounted to enable wall 21 to be aligned with the inner face of the guide tongue. The machine is used to effect french seaming between layers A and B of fabric sewn together along an edge seam 10, the layers being turned inside out to lie upon the top and bottom faces of block 20. When the material is fed towards the needle, slot 22 forces seam 10 towards the folded edge of the material, and said edge is guided by the inner face of tongue 28 to lie at a constant distance from the second seam being formed by the needle.
Patent GB-1530172-A (GB)
Title: Substituted imidazoles and their use as fungicides
IPC: C07D521/00
Filed: 1976-02-02
Abstract: 1530172 Substituted imidazoles ROHM & HAAS CO 2 Feb 1976 [5 Feb 1975 12 March 1975 18 Dec 1975 7 Jan 1976] 04011/76 Heading C2C [Also in Division A5] The invention comprises a substituted imidazole or metal salt complex or an agronomically acceptable acid addition salt thereof, said substituted imidazole being of the formula:  wherein: Z (when not joined to R<SP>2</SP>) is a group containing up to 18 carbon atoms and is aryl; substituted aryl; aryl so substituted as to form a fused carbocyclic or heterocyclic ring; saturated carbocyclic so substituted as to form a fused aryl ring; or a heterocyclic group; R<SP>1</SP>(when not joined to R<SP>2</SP>) is hydrogen (except when R<SP>2</SP> is hydrogen), cyano, (C 1 -C 20 )alkyl, (C 3 -C 8 )cycloalkyl, (C 2 -C 12 )alkenyl, (C 5 -C 8 )- cycloalkenyl, (C 3 -C 6 )alkynyl or aralkyl of up to 24 carbon atoms which aralkyl group is optionally substituted with up to 3 substituents which may be the same or different; R<SP>2</SP> (when not joined to Z or R<SP>1</SP>) is hydrogen or a group containing up to 20 carbon atoms and which is (C 1 -C 20 )alkyl, (C 2 -C 12 )alkenyl, (C 3 - C 6 )alkynyl, (C 3 -C 8 )cycloalkyl, (C 5 -C 8 )cycloalkenyl, aryl or aralkyl, the last two groups being optionally substituted; R<SP>1</SP> and R<SP>2</SP> (when joined together) form, together with attached carbon atom, a (C 3 -C 8 )- cycloalkyl residue; Z and R<SP>2</SP> (when joined together) form the group A is a (C 1 -C 5 )alkylene group X is halogen, nitro or (C 1 -C 4 )alkyl, the X substituents being the same or different when more than one is present; a is zero, 1 or 2, and n is zero or 1. Methods of preparation of these compounds and their precursors are given. The compounds may be used as fungicides.
Patent GB-402623-A (GB)
Title: Improvements in or relating to closures for bottles or like containers
IPC: C09K3/10
Filed: 1933-02-09
Abstract: A closure for bottles, &c. comprises a cap with retaining means thereon and a sealing gasket containing rubber-like material, sufficient lubricating material to provide a non-adhesive anti-frictional sealing surface, and a blooming agent.  The rubber-like material consists of compositions containing natural or synthetic rubber or rubber substitutes; a filler, such as clay, a vulcanising agent, preferably sulphur, and an organic accelerator such as tetra-methyl-thiuram-disulphide, being used. The lubricating material may be ceresin wax.  A "blooming agent" is defined as a substance which ensures that the lubricating material shall exude to the surface of the gasket so that the contact of the gasket with the mouth of the bottle &c. shall be permanently lubricated; stearic acid and metallic stearates are given as examples.  A pigment such as iron oxide may be included in the gasket composition.
Patent GB-965737-A (GB)
Title: 2-imino-1,3-di-n-heterocyclic compounds,their production and use
IPC: C07D233/48
Filed: 1963-01-31
Abstract: The invention comprises compounds of formula: <FORM:0965737/C1/1> where A is an aliphatic radical joined a , b - or a , g - to the two N atoms, R1 and R2 may be hydrogen, or a hydrocarbon radical which may be saturated or unsaturated, normal, branch chain or ring formed, and may be substituted, X is oxygen or sulphur, and R3 and R4 are aliphatic or cycloaliphatic radicals, which may, together with N, form a heterocycle. They are prepared by reacting compounds of formula: <FORM:0965737/C1/2> with suitably di-N-substituted carbaminic acid halides or thiocarbamic acid halides. The reaction is effected by heating the starting materials in an inert organic solvent, e.g. benzene, toluene or xylene, or by direct fusion advantageously in the presence of an acid combining agent. Mentioned starting materials of formula I include 2-imino-1-butyl- or decyl-imidazolidine or -hexahydropyrimidine, 2-imino-1,3-diphenyl-imidazolidine and -hexahydropyrimidine, and 2-imino-1-o-chlorophenyl-imidazolidine and -hexahydropyrimidine. Appropriate acid halides include N,N-dimethyl-, N,N-di-b -cyanoethyl-, N-methyl-N-cyclohexyl-carbaminic acid or -thiocarbaminic acid-chloride or -bromide. Examples illustrate the preparation of variously substituted compounds. The compounds are used in a process for the improvement to gas-fading of dyeings on cellulose esters and ethers, and for improving the fastness to gas-fading of elastomeric polyurethanes see Division D1.ALSO:Elastomeric polyurethanes and dyeings on cellulose esters and ethers are rendered fast to gas fume fading by treatment with compounds of formula <FORM:0965737/D1-D2/1> where A is an aliphatic radical bound a , b - or a , g - to the two N atoms, R1 and R2 may be H, or a hydrocarbon radical, which may be saturated or unsaturated, normal, branch chain, or ring-formed, and may be substituted, X is O or S, and R3 and R4 are aliphatic or cycloaliphatic radicals which may, together with N, form a heterocycle.  The cellulosic esters and ethers may be treated before, during or after dyeing.  In Example 8, a cellulose acetate fabric is pre-treated with an aqueous/ethanolic dispersion of 1-benzyl-2-(N-piperidyl-carboxylimino)-hexahydropyrimidine and a condensation product of alkylphenols with ethylene oxide.  An aqueous dispersion of a hydroydialkyl-aminoanthraquinone dyestuff, an alkoxyaminoanthraquinone dyestuff, and a coupling product from a 1-acylamino-4-aminobenzene and 4-hydroxyl-1-methylbenzene, is added, the temperature is raised to 80 DEG C. and maintained for 45 mins. The sample is rinsed and dried.  In Example 9, yarn from Spandex fibres is impregnated in a solution of 1-benzyl-2-(N,N-diethyl-carbamylimino)-hexahydropyrimidine in carbon tetrachloride at 20 DEG C., squeezed out, and dried at 50-60 DEG C.
Patent GB-1445821-A (GB)
Title: Steering column switch
IPC: B60S1/48
Filed: 1974-01-29
Abstract: 1445821 Mechanical switches SWFSPEZIALFABRTK FUER AUTOZUBEHOER GUSTAV RAU GmbH 29 Jan 1974 [22 Feb 1973] 04058/74 Addition to 1362987 Heading H1N A switch assembly as in Specification 1,362,987 is characterised in that the housing 25 of the switch actuated by rotation of the control lever 10 about its own longitudinal axis is readily detachable from the support member 20 instead of being integral therewith. As shown, the housing 25 has a dovetail type of groove 34 which mates with L-shaped guide ribs 18 on the upper part 21 of member 20 and extending in the longitudinal direction of the steering column 14. Alternatively the housing 25 may be attached to member 20 by plug-in members directed perpendicularly to the steering column.
Patent GB-1188788-A (GB)
Title: Electrical Connector.
Inventor: CHIRUMBOLO JOSEPH F
IPC: H01R13/623
Filed: 1969-01-24
Abstract: 1,188,788. Two-part coupling. BUNKERRAMO CORP. 24 Jan., 1969 [18 March, 1968], No. 4193/69. Heading H2E. An electrical connector 10 has two parts 12, 14 separably held by means of a bayonet lock consisting of a plurality of bayonet pins 33 extending radially inward from part 14, a like number of bayonet slots 36, in part 12 which terminate in pin-receiving sockets 42 having stainless steel studs 46 to provide raised wear-resistant portions and also to act as abutments behind which the pins lock posi- The part 12 includes a hard dielectric body 20 surrounding and holding socket contacts 18, an aluminium shell portion 16 having a keyway pin 40, and part 14 includes a hard dielectric body 34 surrounding and holding pin contacts 26, a shell portion 30 having a keyway slot 38 adapted to mate with the pin 40 in the receptacle and also an outer aluminium sleeve 32 rotatable relative -to shell 30 and carrying the bayonet-pins 33.
Patent GB-959942-A (GB)
Title: Fishing rod attachment
Inventor: PRANCE EDWARD GEORGE ALEXANDER
IPC: A01K87/06
Filed: 1963-02-01
Abstract: 959,942. Fishing rod fittings. MODERN ARMS CO. Ltd. Feb. 1, 1963, No. 4216/63. Heading A1A. Means for securing a reel plate 4 to a fishing rod comprises a tube 1 having a fixed ring 2 and a movable ring 8 provided with a flange 10 adapted either to be engaged by two claw members 11 attached to a locking nut 7 or to engage it in an internal groove in the locking nut. To prevent rotation about the sleeve 1 the movable ring has a detent 12 engaging a longitudinal slot 13 in the sleeve. Both rings have lips 3, 9 to receive the reel plate 4. The flange 10 is made either by swaging the rim of the ring 8 or soldering a further ring to the ring 8.