baber/WOPTO huggingface dataset:
Patent GB-1095263-A (GB)
Title: Electro-magnetic ratchet
Inventor: DANILEWICZ LUDOMIR
IPC: F16D41/00
Filed: 1964-03-17
Abstract: 1,095,263. Electric motors; electromagnetic coupling. PLESSEY-UK Ltd. March 17, 1965 [March 17, 1964], No. 11117/64. Heading H2A. An electromagnetic device of the kind capable of transferring reciprocatory movement into interrupted unidirectional movement comprises an electromagnet structure and two associated armatures having teeth which face one another and arranged so that in response to the successive energization and de-energization of the electromagnetic structure and the simulataneous reciprocation of a first of said armatures a second armature is caused to be stepped unidirectionally. In Fig. 2 the first armature 4 is mounted between stops 7, 9 and both armatures are situated between the poles of an electromagnet. When the magnet is energized the armature 4 is attracted between the poles until it contacts stop 9. To maintain the low reluctance path established by the teeth of the armatures armature 3 is also moved with armature 4. As the magnet is de-energized armature 1 is returned by a spring 8 whereas armature 3 remains in position. A detent (Fig. 5, not shown) preventing any wander of armature 3 may be used. Armature 4 may also be reciprocated, by external means (Fig. 1, not shown). Rotary unidirectional movement may be provided by having two concentric armatures housed in a cylindrical magnet having a central core (Figs. 3, 4, not shown). The two armatures may have differing numbers of teeth (Fig. 6, not shown), the magnet may be provided with teeth (Figs. 4, 7, 8, not shown) and a tapered air gap 35 (Fig. 8, not shown) may be provided between the teeth of an armature 16 and the teeth 11 of the magnet. Fig. 7 illustrates a rotary motor wherein the first armature comprises two discs 25, 27 axially separated and housed in a cylindrical magnet having windings 24 situated between the discs. One disc 25 co-operates with radial teeth 29 of the magnet to create the reciprocating motion whereas the other disc rotates the second armature 32, situated between the disc and the magnet, unidirectionally. The second armature is connected to a shaft 34.
Patent GB-386640-A (GB)
Title: Improvements in or relating to installations for the liquefaction and separation of gases containing carbon dioxide
IPC: F25J5/00
Filed: 1931-04-15
Abstract: 386,640. Separating gases by liquefaction and solidification. FRANKL, M., 234, Ulmerstrasse, Augsburg, Germany.- (Assignee of Soc. L'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des Procedes G. Claude; 48, Rue St.Lazare, Paris.) April 15, 1931, No. 11195. Convention date, April 15, 1930. Void [Published under Sect. 91 of the Acts]. [Class 8 (ii).] In the liquefaction and separation of gas mixtures containing carbon dioxide, the carbon dioxide is deposited in preliminary heat regenerators in solid form and is resublimed and removed from them on reversal by the outflowing separated gases. Alternatively, solid carbon dioxide is deposited in a countercurrent exchanger, the paths of the incoming and outgoing gases being reversed at intervals.
Patent GB-905102-A (GB)
Title: Improvements in and relating to hand applied drilling and like rotary tool devices incorporating an electric driving motor
IPC: H02K5/08
Filed: 1961-03-28
Abstract: 905,102. Drilling machine details. BOSCH G.m.b.H., ROBERT. March 28, 1961 [March 29, 1960], No. 11233/61. Class 83 (3). [Also in Group XXXV] A portable electric tool such as a drill, has a motor housing 10 moulded from an electricallyinsulating material, e.g. synthetic resin, which is strengthened by a cast, preferably die cast, or fabricated frame, comprising a ring 20, at least three braces 21, and a bearing support 24. The armature stub axle 15 is held in a rotating insulating bush 16, to which is secured a pinion 18 which transmits the drive from the motor to the tool spindle 1.7. A handle 30 of mouldable insulating material is secured to support 24 which also has a bush 27 covered with insulating material for receiving a bearing bush 28, and gear-box 13 is screwed to lugs 32 on ring 20.
Patent GB-1403804-A (GB)
Title: Magnetic tapes
IPC: G11B5/716
Filed: 1973-03-08
Abstract: 1403804 Magnetic record tapes EMI Ltd 7 March 1974 [8 March 1973] 11245/73 Heading G5R A tape substrate carries on one surface a magnetic recording layer and on the other surface at least one marker comprising a region of magnetizable material of substantially higher coercivity than the recording layer. A marker may be a magnetized region of a continuous layer of magnetizable material or a discrete element of such material, e.g. a strip of adhesive splicing tape. Information may be magnetically recorded on a marker.
Patent GB-427997-A (GB)
Title: Improvements in sparking plug insulators and processes for making the same
IPC: B01J39/02
Filed: 1934-04-14
Abstract: Sparking-plug insulators consist of corundum and a ceramic binder which is yielding as compared with the corundum when the insulator is under stress due to heat expansion.  Preferably, the binder is of a glossy nature and has a coefficient of elasticity less than that of corundum.  The binder should also preferably become somewhat plastic at temperatures, for example, between 500 and 800 DEG  C., within the range in which the thermal expansion coefficients of the binder and corundum most diverge.  A mixture of steatite, kaolin, and feldspar in stated proportions forms a suitable binding material fulfilling these conditions.
Patent GB-772855-A (GB)
Title: Improvements in dust-aspiring floor-polishing machines
IPC: A47L11/206
Filed: 1955-04-20
Abstract: 772,855. Fastenings. STAEHLE, G. April 20, 1955 [April 20, 1954], No. 11369/55. Class 44. [Also in Group XXIII] Relates to a fastening for detachably securing a brush to a driving disc in a floor-polishing machine (see Group XXIII).. As shown, each brush disc 8 has a pair of inwardly or radially directed flat projections 13 to detachably engage with a driving spring-disc 11 secured to the end face of a cylindrical member 7 on a driving disc 6. The disc 11 has tongues 14 projecting somewhat from the members 7 and behind which engage the projections 13 on the brush disc 8 by turning the disc 8 after the projections have been pressed through notches 12 in the disc 11. The ends 15 of the tongues 14 bear upwardly against the faces of the entered projections 13.
Patent GB-708930-A (GB)
Title: Improvements in or relating to yarn winding machines
Inventor: MACIVER ANDREW
IPC: B65H59/38
Filed: 1951-05-16
Abstract: 708,930. Winding yarn. HOBOURN AERO COMPONENTS, Ltd. May 13, 1952 [May 16, 1951], No. 11421/51. Class 120(2) [Also in Group XXXV] The spindle 32 of a yarn winding machine is driven by a motor through an eddy current clutch device 21 the exciting current of which is varied by a control device comprising a speed measuring wheel 29, rotated by the yarn in its passage to the winding-on bobbin, and gearing 25, 26, rotated at constant speed by the main motor. The measuring wheel 29, through gearing 28, drives a holder 7 having a spring-loaded brush 6 which contacts a series of studs 4 forming part of a commutator 5 rotated at constant speed by the gearing 25, 26 by way of a slipping clutch 27. The studs 4 are connected by conductors to tapping points on a resistance coil 1, which is connected at 13 to a slip ring 12, and the brush 6, through a conductor 16, a second brush 10 and conductor 15 is connected to a slip ring 14. A power source 23 through these rings and through connections 19, 20 varies the exciting current in the eddy current clutch 21 so that when the holder 7 is gaining on the commutator 5, the speed of the spindle 32 is reduced and vice versa. Interengaging stops 30, 31 on the holder 7 and the commutator 5 limit the relative rotational movement to about 1 revolution.
Patent GB-761806-A (GB)
Title: Improvements in or relating to insulated coils and windings for electrical machines
IPC: H02K3/32
Filed: 1954-04-21
Abstract: 761,806. Laminated materials; impregnated electric insulation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 21, 1954 [April 30, 1953], No. 11447/54. Drawings to Specification. Class 140. [Also in Group XXXV] A process for preparing an insulated fullcoil having two slot portions and connecting end portions comprises the following steps:- (1) an electrical conductor is shaped to the desired full-coil form; (2) sheet mica insulation is wrapped on at least the slot portions; (3) the wrapped coil is impregnated with a liquid completely reactive resinous composition; (4) the wrapped portions of the coil are covered with an impervious sheet material; (5) the slot portions only are cured under heat and pressure; (6) if the end portions have been left unwrapped they are now wrapped with sheet mica insulation, impregnated with liquid resinous composition and covered with impervious sheet material; (7) the coil is fitted into the electrical machine; and (8) the machine, with the coil fitted therein is heated to complete the cure of all the resinous composition present therein. The sheet mica insulation comprises mica flakes adhered to a sheet backing by means of a liquid resinous binder, e.g. a linear polyester or a polyalphamethyl styrene. The sheet backing may be paper, cotton fabric, asbestos paper, glass, cloth or mart, or sheets or fabrics of synthetic resinous materials, e.g, nylon, polythene or a polyester. The mica flakes adhered to the sheet backing may be covered with another layer of sheet backing. The completely reactive resinous composition comprises a monomeric compound having at least two >C=C< groups and is miscible with the resinous binder. Numerous compositions are specified, including diallyl esters, unsaturated polyesters which may be dissolved in a polymerizable monomersuch as styrene, and a mixture of styrene and.divinyl benzene. The impervious sheet material may consist of polyvinyl alcohol, polytetrafluoro ethylene or polymethylene terephthalate. After curing, the impervious sheet may be stripped from the slot portions.
Patent GB-114919-A (GB)
IPC: B64C27/32
Abstract: 114,919. Porter, J. R. May 9, 1917. Aerial machines without aerostats; steering.- Relates to aeronautical machines of the helicopter type and particularly to machines having upper and lower propellers which rotate in opposite directions, and consists in an improved construction of propellers and means for turning and controlling them. Viewed in plan, the blade of the propeller is annular. The upper propeller has two or three blades while the lower propeller has three or four blades. The two propellers are preferably driven by sun and planet gear in the manner described in Specificaticn 106,888. A hand brake n is arranged so that by braking the guided belt s, the rotation of the annular toothed wheel m and the lower propeller is retarded. By means of this belt and brake the pilot.may cause the machine to turn on its own axis. ,
Patent GB-294915-A (GB)
Title: Improvements in and relating to dental flasks
IPC: A61C13/16
Filed: 1927-04-30
Abstract: 294,915. Smith, H. J., and Morgan, E. T., (trading as Smith & Morgan). April 30, 1927. Dental flasks. - Two - part dental flasks are formed with ears or lugs at appropriate parts of the periphery which lugs are subsequently drilled, the holes on one part being furnished with pins permanently secured therein and adapted to engage the holes in the other part. As shown, the mould part a is furnished with lugs e and the part b with corresponding lugs e<1>, the meeting faces being machine ground to make a tight joint. Holes are jig drilled in the lugs and pins g are secured by riveting in to the lugs e. The mould parts are secured by taper pins k passed through holes in the pins g.
Patent GB-1460483-A (GB)
Title: Liquid-solid adsorption chromatography process for t
IPC: G01N30/94
Filed: 1974-03-15
Abstract: 1460483 Thin layer chromatography REGIS CHEMICAL CO 15 March 1974 [16 March 1973] 11601/74 Heading B1H A process of separating a multi-component mixture by T.L.C. comprises depositing a sample of the mixture at a location upon a surface having a thin adsorbent layer, partially immersing the surface in a reservoir of liquid so that the liquid advances through the adsorbent by capillary forces, the diffusivity of the mixture in the liquid being increased by heating the liquid in the adsorbent to a temperature above ambient temperature whereby the speed of liquid advance is increased with a corresponding increase in separation efficiency. The plate may be heated by radiant heat or it may contain an internal resistance heater. The temperature may be raised above boiling point so that the liquid evaporates and the solvent front may be moved backwards, reconcentrating the spot if desired, by allowing evaporation to be more rapid than the advance due to capillarity.
Patent GB-566750-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02J3/42
Filed: 1943-07-16
Abstract: 566,750. Electric supply. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 16, 1943, No. 11622. Convention date. Aug. 11, 1942. [Class 38 (iv)] [Also in Group XXXVII] A synchronous motor, with induction starting, has its D.C. excitation applied at a favourable point in the slip cycle when near synchronous speed by a control means responsive to a given maximum combined effect of two M.M.F.s, one of which varies with the frequency, of the current induced in the field winding and the other of which varies in accordance with the cyclic changes in amplitude of stator current as the machine approaches synchronous speed. In the arrangement shown, depression of a button 3 energizes the operating coil 7 of a line contactor 8, which is then self-maintaining over its contacts 121 and connects the lines 1, 10, 11 to the stator of the motor M. A current transformer 15 provided in the line 1 energizes through a rectifier 16, the windings 17, 18 of a control relay 19 and the heavy starting current of the motor causes the armature 20 of the relay to be attracted to its core against the action of a spring 21 so as to open contacts 23. As the motor speeds up, the fall in line current allows the armature to return to its original position, thereby closing the contacts 23 and completing the circuit of a motor 30 driving a drum controller C, the circuit being established over the back contacts 26 of a control contactor 27 and segments 28, 29 of the drum controller. As the controller rotates, the spring bias on the armature 20 is progressively reduced by a cam 22 driven by the controller and the following circuit changes are effected as the segments 33, 34 and 51 become operative : (1) the circuit of motor 30 is made independent of the closed contacts 23, 26 by connection of conductor 32 to segment 33; (2) the operating coil 36 of contactor 27 is energized, over segment 34 and contacts-38 of the line contactor, to close contacts 39 and complete the circuit of windings 44, 45 of the control relay which are connected across a discharge resistance 47 shunting the field winding 48 of motor M, so that these windings are energized with current of slip frequency ; (3) a circuit comprising contacts 12, 49, con. ductor 50, segments 51, 52 and conductors 54, 37 is prepared for the operating coil 55 of a field contactor 56 which becomes energized and connects the field 48 to a D.C. supply 57, 58 when the armature is again attracted to its core under the influence of reduced spring bias and the combined effects of slip frequency current in the windings 44, 45 and current pulses of twice slip frequency in windings 17, 18. The control relay then becomes deenergized and establishes a holding circuit for the field contactor and the drum controller moves to its off position. If switches 14, 61 are in the position shown and the motor pulls out of synchronism, the starting cycle will again commence and the motor be resynchronized. With the switches in the other position, the line and field contactors both drop out in event of the motor pulling out.
Patent GB-639662-A (GB)
Title: Carbalkoxy aminoanthraquinone sulfonamides
IPC: C09B1/34
Filed: 1947-05-01
Abstract: Dyes of the formula <FORM:0639662/IV (c)/1> where R represents an alkyl radical and Z a sulphonamide radical of the formula -SO2NHX, -SO2NHY, or -SO2N\s6A, where X and Y each represent a saturated aliphatic radical, such as alkyl radicals or alkyl radicals containing carboxy, carbalkoxy, alkoxy, acyloxy, hydroxy, halogen, sulpho, mono- or di-alkylamino, or an aromatic radical of the benzene, naphthalene, and hydrogenated naphthalene series, and A is a bivalent alkylene radical which with the nitrogen atom on the sulphonyl group constitutes a 5- to 7-membered heterocyclic ring, are made by esterifying the corresponding carboxylic aminoanthraquinone sulphonamides.  Alcohols specified for the esterification are methyl, ethyl, isopropyl, the butyl alcohols, n-hexyl alcohol, 2-ethyl-n-hexyl alcohol, or n-octyl alcohol.  The starting materials are prepared by condensing 1-amino-4-bromanthraquinone-2-sulphonic acid sodium salt with an aminocarboxybenzenesulphonamide as described in Specification 639,660.  A list of amines for preparing the latter is given.  In examples: (1) 1-amino-4-bromanthraquinone-2-sulphonic acid is condensed with 5-(N-21-carboxyphenylsulphamyl)-anthranilic acid and the product is esterified with ethyl alcohol or with n-butyl alcohol; (2) 1-amino-4-(p-N-diethylsulphonamido - o - carboxy) - anilino - anthraquinone-2-sulphonic acid is esterified with ethanol; (3) 1-amino-4-(p-N-cyclohexyl-sulphonamido - o - carboxy) - anilino - anthraquinone-2-sulphonic acid is esterified with ethanol; (4) 1-aminoanthraquinone - 4 - (p1 - N - p - tolylsulphonamido - o - carboxy) - anilino-anthraquinone - 2 - sulphonic acid is esterified with isopropyl alcohol; (5) 1-amino-4-(p-N-o-methoxyphenylsulphonamido - o - carboxy) - anilino - anthraquinone - 2 - sulphonic acid.
Patent GB-1248090-A (GB)
Title: Radio altimeter
Inventor: BRANDON MARTIN
IPC: G01S13/34
Filed: 1969-03-05
Abstract: 1,248,090. Radar. STANDARD TELEPHONES & CABLES Ltd. 5 March, 1969, No. 11784/69. Heading H4D. In a radio altimeter the mean height of the total range of heights simultaneously measured is determined, the maximum deviation in height of the total range of heights is determined, and a proportion of the maximum deviation is subtracted from the mean height. Compensation for Doppler effects and aircraft roll is thereby achieved. The proportion subtracted may be half the total deviation about the mean. The embodiment is an F.M.C.W. altimeter incorporating a transistor circuit to perform the foregoing derivation; the circuit includes means for inhibiting the output of the altimeter for every alternate half cycle of the F.M. sweep.
Patent GB-357510-A (GB)
Title: Improved electric insulators
IPC: H01B3/00
Filed: 1930-04-14
Abstract: An electrical insulating varnish comprises boron nitride mixed with resin-lac, a cellulose acetate lac, shellac, or other insulating lacs.ALSO:An electric insulating composition comprises boron nitride mixed with other insulating material which may be either organic, inorganic, or a mixture of both.  Boron nitride, preferably in the colloidal form, may be mixed with a binder such as hydrated silicic acid, kaolin, aluminium silicate, titanium dioxide or other refractory silicate or oxide, and worked into a plastic mass, which after moulding into shape under pressure is slowly dried and then baked in a porcelain or electric furnace with a slowly rising temperature.  The insulating properties of glass, porcelain, steatite or porcelain glazing may be increased by the addition of boron nitride.  Other insulating compositions are formed by the addition of boron nitride to rubber, balata, guttapercha, paraffin, artificial resins, asbestos, shellac, or cellulosic materials.
Patent GB-473251-A (GB)
Title: Improvements relating to profiling diamonds
IPC: B24B53/08
Filed: 1937-04-24
Abstract: 473,251. Diamond tools. LINDNER, H. April 24, 1937, No. 11787. Convention date, Aug. 18, 1936. [Class 124] A diamond 1 used for cutting a thread profile on a grinding wheel has this profile formed on both its ends 1a, 1b, so that when one cutting end becomes worn the holder is turned through 180‹ to present a new working edge. The holder may be rectangular, Fig. 1, or may be circular, Fig. 5, and be clamped by the cam 15. The holder is fed to the wheel by the screw 7, moved along after each cut by the gearing 8, and can be adjusted around a vertical axis by the plate 12 clamped by the nuts 14.
Patent GB-1048196-A (GB)
Title: A method for the cooling of burning gases in a combustion chamber
Inventor: HEINRICH EMIL
IPC: F23L7/00
Filed: 1964-03-20
Abstract: 1,048,196. Furnace atmospheres. MAHLERVEBWALTUNGS-G.m.b.H. March 20, 1964, No. 11804/64. Heading F4B. The combustion temperature of gases burning in air in a combustion chamber, during the production of combustion product gases used to prevent oxidation of substances, is lowered by recycling condensate water from the combustion product gases to the burning stage. The recycled water may be introduced into a rapidly moving mixture of fuel and air and finely distributed therein. It may be introduced into the stream by gravity or by the injector effect of the rapidly flowing mixture.
Patent GB-305452-A (GB)
IPC: C09C3/00
Filed: 1928-04-21
Abstract: 305,452. Krausewerk Akt.-Ges. Feb. 4, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Incorporating paint ingredients. - Washed and precipitated pigments to be mixed with oil, varnish, &c., are filtered to remove the bulk of the moisture and are then washed with a liquid such as alcohol which takes the place of the water. If spirit varnish is to be used, the pigment wet with alcohol can be mixed directly therewith. When oil or oil varnish is to be used, the pigment is further treated with a, volatile liquid such as benzene which dissolves both the alcohol and the varnish oil. After mixing with the oil &c. the alcohol and benzene can be driven off and recovered.
Patent GB-360346-A (GB)
Title: Improvements in spindle bearings
IPC: F16C35/08
Filed: 1931-04-22
Abstract: 360,346. End thrust bearings. CHURCHILL MACHINE TOOL CO., Ltd., Broadheath, near Manchester, and ASBRIDGE, H. H., Washway Road, Ashtonon-Mersey. April 22, 1931, No. 11900. [Class 12 (i).] An end thrust bearing for vertical or horizontal shafts is located within the shaft itself to economize in space. As shown for a grinding machine spindle b which is supported in the usual journal bearings c, d, a sleeve i having an inwardly projecting flange is fixed within a hole h in the spindle end. Ball thrust bearings m, k, on opposite sides of the flange bear against an abutment s on a pin q and the end of a sleeve p bolted to the end of the bearing casing f. The pin q is keyed at r to the sleeve p and is held in position by an adjusting nut t and locknut u.
Patent GB-400287-A (GB)
Title: Improvements in thermostats
IPC: H01H37/66
Filed: 1932-05-26
Abstract: 400,287. Thermal switches. MACLAREN, R., The Craigs, Linlithgow, and MACLAREN & CO., Ltd., R., 110, Crawford Street, Glasgow. May 26, 1932, No. 11906. [Class 38 (v).] In a modification of the thermostats described in Specifications 307,135 and 337,093, [both in Class 38 (v), Electric switches &c.], the moving contact G, which engages the fixed contact J, and the armature F which is attracted by a circular magnet H, are mounted together on the outer portion B of a doubletongued lever the inner portion or tongue A of which is fixed to a support at C. The support C forms part of a bracket having a projecting piece E which forms a fulcrum for the double-tongued lever and the inner tongue A is acted upon by a screw K or other member connected to the thermal element. In the form shown the screw K which is adjustable is mounted in a bridgepiece L which is fixed to the non-expanding rod 0 situated within the expanding sleeve P. In a modification the rod 0 acts on a strut which acts on the member B. The rod 0 and sleeve P may also be replaced by a liquid-filled metal bellows.