baber/WOPTO huggingface dataset:
Patent GB-572912-A (GB)
Title: Improvements in indicating systems for electrical signals
IPC: G01S1/02
Filed: 1944-02-11
Abstract: 572,912. Directive wireless systems. STANDARD TELEPHONES & CABLES, Ltd., EYRE, C. M. LE G., and HAMILTON, D. Feb. 11, 1944, No. 2540. [Class 40 (v)] In a blind-landing equisignal overlapping- beam system for aircraft, the device described in Specification 559,062, in which dots and dashes denoting opposite deviations from the course are converted to impulses of equal duration and opposite polarity, is. simplified as shown so that two rectifiers W3, W4 are used instead of the previous four. Dots or dashes applied to the grid of the valve V cause the respective condensers C2, C3 to charge and discharge either slowly through the resistances R3, R4 or rapidly through the appropriate one of the rectifiers W3, W4, according to the direction in which the anode-potential of the valve is altered by the signals. The resulting average flow of current through the directcurrent instrument A causes the latter to indicate deviations from course. Smoothing- impedances C4, R5 are provided. The rectifiers may be of the thermionic or of the dry type and may be enclosed in a common envelope. To permit of zero adjustment, the resistances R3, R4 may form a potentiometer with sliding contact.
Patent GB-214014-A (GB)
Title: An improved piston for use in cylindrical valve chambers and cylinders
IPC: F16J9/00
Filed: 1923-01-27
Abstract: 214,014. Mason, J. M. Jan. 27, 1923. Pistons; packing; attaching to, and detaching from, rod.-A piston or piston valve has thin walls which are expanded bv means of lead or other compressible material. A small piston comprises a steel shell 6, Fig. 1, closed at one end and screwing on to a body 1, being locked by a screw cap 8. The shell is packed with lead &c. 4 and the open end is covered by a plate 3 abutting against a shoulder on the body 1. A larger piston comprises a body 9, Fig. 4, recessed on both faces to receive junk rings 10, 11, between which is secured a steel shell 6 of L section expanded by lead &c. 7. The rod is attached to the piston by means of a screwed connecting piece 13.
Patent GB-822074-A (GB)
Title: Improvements in and relating to pneumatic brakes of rail vehicles
IPC: B60T15/30
Filed: 1957-01-24
Abstract: 822,074. Fluid-pressure brakes. DANEK, J., and KOVOLIS NARODNI PODNIK. Jan. 24, 1957, No. 2633/57. Class 103 (1). In a control device for pneumatic brakes for rail vehicles, the accelerating valve 19 is controlled by the movement of diaphragm 18 which is subject to the pressure, on one side, of the main air line, and on the other side, of the auxiliary reservoir PV. The diaphragm 15, which controls the opening of the valve 11, by which air from the auxiliary reservoir PV is passed to the brake cylinder BV, is subject, however, to main air pipe pressure on one side, and control reservoir pressure on the other side, in the usual manner. There are thus two sensitivity passages X and Y controlling communication between the main air line 47 and the control reservoir RK and auxiliary reservoir PV respectively. By this arrangement, it is possible to make the sensitivity port X smaller than it would otherwise be and the loss of pressure from the control reservoir RK to the main air-line during repeated brake applications is thus reduced to a minimum.
Patent GB-161593-A (GB)
Title: Improvements in or relating to prime-movers
IPC: F01K25/12
Filed: 1919-02-03
Abstract: 161,593. Bindley, W. T. Robinson-. Feb. 3, 1919. Vapour - engines. - Gas or vapour generated by heating one or more of the polychloro derivatives of ethylene or chloro-benzene is used, with or without air, in an engine of any ordinary construction. Preferably trichlorcethylene is used. The vapour may be generated in an ordinary boiler or may be generated in the engine-cylinder by contact with a hot tube, or by mixing the liquid with the exhaust gases from an internalcombustion engine, or by heat supplied to the cylinder-head by a, flame or by a hot jacket. In the arrangement shown, the gas or vapour is generated in an ordinary boiler A and the exhaust passes from the engine through an expansion chamber E to a condenser G through which a cooling liquid is circulated by pipes R, S. Oil is separated from the liquid in a vessel M and the liquid is collected in a tank O from which a pump Q feed it to the boiler. The boiler is fitted with a safety-valve, the escaping vapour being led through pipes K, H to the condenser. According to the Provisional Specification, vapour of ethane, or carbon tetra-chloride may be used. Reference has been directed by the Comptroller to Specifications 8525/93, 8592/93, 21127/12, and 15312/14.
Patent GB-284699-A (GB)
Title: Circuit arrangement for non-numerical switches in telephone systems
IPC: H04Q3/00
Filed: 1928-01-27
Abstract: 284,699. Siemens & Halske Akt.- Ges. Feb. 5, 1927, [Convention date]. Automatic and semi-automatic exchange systems. - A line switch or other non-numerical switch is controlled by a single relay which is partially operated at one stage and fully at another. This is secured, without the necessity of employing a relay of special two-step construction, or with windings of different strength, by arranging that the circuit which partially operates the relay is a self-interrupting one, so that the armature is fluttered. The invention is shown in Fig. 2 applied to a line switch in a private branch exchange with means for signalling an operator if an external connection is wanted. When the loop a, b is closed, the relay T1 is energized over winding I and interrupts its own circuit at contacts 123, 124 so that its armature flutters, but contact 125 is arranged to close before and 126 to open after the opening of 123, 124, so that 125 remains steadily up and 126 steadily back, and a circuit is closed for the stopping magnet D. When an idle outlet is reached, the windings III, II of relay T1 are energized over 130, 125, 129 and the relay pulls up fully, short-circuiting its high-resistance winding III, disconnecting the magnet D, and switching through. Relay C at the same time cuts in its second winding. If an external connection is wanted the subscriber dials a number which results in the energization of relay ZR, which closes a low-resistance circuit to energize a marginal relay AR (in parallel with winding II of relay T1) which lights a lamp AL, which is extinguished when the operator plugs into the jack AK. A meter may be operated in the same manner as the relay AR.
Patent GB-265767-A (GB)
Title: The manufacture of new monoazo dyestuffs
IPC: C09B29/00
Filed: 1926-01-30
Abstract: 265,767. Carpmael, W., (I G. Farbenindustrie Akt.-Ges.). Jan. 30, 1926. Monazo dyes, dyeing wool without a mordant,. are obtained by coupling a diazotized aminobenzyl sulphuric acid or a substitution product therof with an aromatic amine not containing a sulphonic or carboxylic group, or by coupling a diazotized nitroaminobenzyl-sulphonic acid or a substitution product thereof with a sulphonic or carboxylic acid of #-naphthylamine or a substitution product thereof, or with a 2-aminonaphthol, or a sulphonic acid or substitution product thereof; the products dye wool in an acid bath in various shades fast to light, and the first-mentioned dyestuffs may be used for dyeing or printing cellulose acetates or ethers or their conversion products. The preparation of dyestuffs from the following pairs of components is described in examples :-4-aminobenzyl sulphonic acid and diphenylamine, ammonium 5-nitro-2-aminobenzyl sulphonate and ethylbenzylaniline, and 3:5-dinitro-2-aminobenzyl sulphonic acid and ethyl-#- naphthylamine. The shades obtained on acetate silk or wool with dyestuffs from the following pairs of components are tabulated : 2-aminobenzyl sulphonic acid and methylbenzylaniline; 4-aminobenzyl sulphonic acid and methyl-#-naph. tLylamine; 5-nitro-2-aminobenzyl sulphonic acid and methyldiphenylamine or oxyethyl-#-naphthylamine; 3 : 5-dinitro-2-aminobenzyl sulphonic acid and ethylbenzylaniline; and 3 : 5-dinitro-4-aminobenzyl sulphonic acid and #-naphthylamine or ethyl-#-naphthylamine. In further examples, the preparation of wool dyes from the following pairs of components is described : ammonium 5-nitro-2- aminobenzyl sulphonic acid and 2-methylaminonaphthalene-7-sulphonic acid; 3 : 5-dinitro-2- aminobenzyl sulphonic acid and 2-methylamino- 8-naphthol-6-sulphonic acid, #-naphthylamine-3- carboxylic acid, or 2-amino-8-naphthol; and ammonium 3 : 5-dinitro-4-aminobenzyl sulphonate and 2-ethylaminonaphthalene-7-sulphonic acid. The shades obtained with dyestuffs from the following pairs of components are also tabulated :- 5-nitro-2-aminobenzyl sulphonic acid and 2- amino- (or methylamino)-8-naphthol 6-sulphonic acid; 3:5-dinitro-2-aminobenzyl sulphonic acid and 2-methylaminonaphthalene-7-sulphonic acid, #-naphthylamine-6-sulphonic acid, phenyl-#- naphthylamine-6-sulphonic acid, or 2-amino (or phenylamino)-8-naphthol-6-sulphonic acid; and 3 : 5-dinitro-4-aminobenzyl sulphonic acid and 2- methylaminonaphthalene-6-sulphonic acid. 3 : 5-Dinitro-2 (or 4)-aminobenzyl sulphonicacid is obtained from 3 :5-dinitro-2 (or 4)-chlor benzyl sulphonic acid by the replacement of the chlorine by the amino group in the usual manner. Specification 18139/02, [Class 2, Acids and salts, Organic &c.], is referred to.
Patent GB-411072-A (GB)
Title: Method and apparatus for cooling glass
IPC: C03B27/052
Filed: 1934-01-26
Abstract: 411,072. Tempering glass. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Littleton, J. T. ; 31, East 5th Street, Coming, New York, U.S.A.) Jan. 26, 1934, No. 2763. Convention date, Feb. 27, 1933. [Class 56.] An apparatus for tempering glass articles comprises a cooling-element which is so constructed as to absorb radiant heat from selected areas of a glass article and to reflect radiant heat back into other areas of the article. The apparatus is intended particularly to prevent the edges of an article from cooling more rapidly than the other portions. Fig. 1 shows in vertical section a device for tempering glass sheets. It comprises cooling elements 10, 11 which are hollow and are cooled by the circulation through them of suitable fluid. The elements have projecting flanges 12, 13 which butt together to form a chamber 18 into which a sheet 19 of glass can be introduced by means of tongs 20. The heat-absorbing capacity of the elements is made to vary over the area of their inner surfaces 21, 22 by blackening or polishing different portions of the surfaces. Preferably, the central part of each surface is treated with lamp-black or graphite, and the coating diminishes in thickness as it approaches a polished area 25 near the edges. The surfaces may also have reflecting members 29, Fig. 4, attached in an arbitrary pattern, the members being separated from the face of the elements by interposed layers 31 of heat-insulating material. The elements may be suitably shaped for tempering other glass articles, such as baking dishes.
Patent GB-1492024-A (GB)
Title: Antiskid braking systems
IPC: B60T8/66
Filed: 1973-01-19
Abstract: 1492024 Anti-skid brake control circuits LUCAS ELECTRICAL Ltd 4 Jan 1974 [19 Jan 1973] 2820/73 Heading F2F A first switch means, .e.g. a transistor 53 is switched from a second state to a first state to switch control means to a first state for brake release when a wheel acceleration signal exceeds a predetermined rate of deceleration; however switching of the control means to a second state for brake reapplication which would be caused by switching of the first switch means back to its second state is delayed by delay means, e.g. a capacitor 75, which is overidden by switching of a second switch means, e.g. a transistor 74, to a first state for brake reapplication, this switch means having a deceleration threshold, lower than that for the first switch means, above which it is switched to a second state. A frequency-voltage inverter 15 produces a wheel velocity voltage signal from a wheel sensor 13, 14, which after passing through a differential amplifier comprising transistors 25, 38, 42 and a field effect transistor 23 with associated capacitors diodes and resistors, provides a wheel acceleration signal on a line 51, the greater the wheel deceleration the higher the signal value. The transistor 53 in its first state actuates the control means comprising transistors 61, 64, 67 and associated resistors and capacitors to energize a coil 68 for brake release. Reapplication of brakes is delayed to take account of the road surface frction coefficient by means of a capacitor 22. To further avoid too early reapplication on low coefficient surfaces, the transistor 74 provides an output when the deceleration signal attains a valve below i.e. while acceleration rises above that for switching the transistor 53 and causes the capacitor 75 to charge through the transistor 61, holding transistors 64, 67 in to maintain brake release for a time period inversely proportional to the rate of increase of the acceleration signal. This capacitor also restricts the maximum brake release time to that required to change the capacitor completely. However, the capacitor delay is overridden by the transistor 74 when the deceleration signal drops below, i.e. wheel acceleration rises above the switching threshold of this transistor. Spurious signals are avoided by a normally conducting transistor 189 associated with resistors 28, 43, 81 which causes a transistor 89 to be non-conducting, the transistor 189 being non-conducting during wheel acceleration to charge a capacitor 87 and cause the transistor 89 to be non-conducting but the control means is not affected. Subsequent deceleration does not cause the transistor 189 to be immediately conductive due to the capacitor 87, thus the transistor 89 avoids operation of the control means for momentary deceleration changes.
Patent GB-374000-A (GB)
Title: Improvements in and relating to arc extinguishing devices
IPC: H01H85/44
Filed: 1931-01-29
Abstract: 374,000. Protective arrangements for supply systems and apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Jackson, A. M. ; 770, Illinois Merchants Bank Building, Chicago, U.S.A.) Jan. 29, 1931, No. 2931. Convention date, Jan. 29, 1930. [Class 38 (iv).] A protective device for a stack or string of insulators comprises an arcing ring 7, connected for example to the conductor 1, and an arcing member, connected for example to earth, having horns 6 each comprising a fuse member 19 connected across an insulating portion 22 of the horn by means of clips 20. The fuse member comprises an insulating tube 23 with two metallic caps between which the fusible element, in series with a tension spring 24, is connected as shown in Fig. 2. The tube 23 is filled with carbon tetrachloride or similar fire-extinguishing liquid.
Patent GB-1486902-A (GB)
Title: Radar aerial arrangements
IPC: H01Q21/29
Filed: 1974-10-21
Abstract: 1486902 Aerials; radar MARCONI CO Ltd 21 Oct 1974 [22 Jan 1974] 02933/74 Headings H4A and H4D A radar aerial arrangement comprises a main scannable surveillance aerial 1, and two side lobe suppression aerials 2, 3, mounted with their phase centres lying substantially in the same plane as the main aerial, capable of producing an azimuthal cardioid radiation pattern, directed in opposite directions, and each is brought into mutually exclusive operation by switch 4 when nearest a jamming transmitter 6, e.g. along a direction 5. Each suppression aerial 2, 3, may comprise an elliptical metal cylinder 8 having vertical plates 9 and 10, and a linear array of four vertically extending slots 11 therebetween, which are each fed in phase by a coaxial feeder 12 from T-junctions located in vertical space 13. In another embodiment Fig. 6, the main surveillance aerial comprises an array of horns 14 at the centre of which array is a horn 15 acting as one side lobe suppression aerial, to the rear of which rearwardly directed horn 16 acts as the second suppression aerial. Connection to horn 15 from the main input 20 of a receiver (not shown) and from one, 21, of the two side lobe suppression inputs 21 and 22 of the receiver is made via a directional coupler 17. Connection to horn 16 from side lobe suppression input 22 is made via a compensator 18 which equalizes the aerials 15 and 16.
Patent GB-1023432-A (GB)
Title: Improvements in or relating to indicating instruments
Inventor: JENKINS RHONALD FRANK
IPC: G01L7/04
Filed: 1963-01-24
Abstract: 1, 023, 432. Indicating-apparatus; pressure gauges. S. SMITH & SONS (ENGLAND) Ltd. Jan. 24, 1964 [Jan. 24, 1963], No. 2969/63. Headings G1S and G1L. Indicating-apparatus comprises a pointer 42 attached to a pinion 41 which co-operates with a toothed sector 43 and the teeth of both the pinion 41 and sector 43 are of helical form whereby a displacement of the sector parallel to the axis of the pinion causes rotation of the pinion and pointer. A quadrant 18 carries the sector 43 and has an arm 2 carrying a ring 24, Fig. 3, so that two bearing points are provided for a pivot pin 19. The free end 15 of a Bourdon tube 1 is connected to the quadrant 18 by a link 16 which fits in a slot 17 in the quadrant 18 whereby the pointer 42 is rotated to indicate pressure. A zero adjusting screw 26 can be turned manually against the resistance of a spring washer 45 and of the interference fit of threaded parts of a yoke 25 whose other end embraces pin 19 in order to move the quadrant and so adjust the pinion and pointer. The quadrant 18 may be replaced by a member wherein the teeth are cut along the side of a hole cut in the member so that the pinion engages the teeth internally and the pinion and member turn in the same sense about their axes in response to movement of the end of the Bourdon tube, Fig. 8 (not shown).
Patent GB-940101-A (GB)
Title: Means for symmetrizing the load in three phase electric arc-furnaces
IPC: H02J3/26
Filed: 1962-01-26
Abstract: 940,101. Arc furnaces. ALLMANNA SVENSKA ELEKRISKA A.B. Jan. 26, 1962 [Jan. 30, 1961], No. 2987/62. Heading H2H. In a 3-phase arc furnace having electrodes 6, out of balance current in the two " outer " conductors due to a non-symmetrical arrangement are reduced by a transformer 8 having equal prefilar windings connected in series with a pair of outer conductors. Specification 726,165 is referred to.
Patent GB-779023-A (GB)
Title: Apparatus for collecting and protecting oyster set
IPC: A01K61/54
Filed: 1955-02-01
Abstract: 779,023. Oysters. GLANCY, J. B. Feb. 1, 1955, No. 3012/55. Class 48 Apparatus for setting young shell fish such as oysters, mussels, scallops and clams and . protecting them from their natural marine enemies e.g. drills, comprises a support 13 adapted to rest on the seabed, a carrier for young shellfish mounted on the support and a barrier 16 interposed between the sea-bed and the carrier. The support 13 comprises a base formed by two iron cross bars 11, 12 and a vertical column formed by a long bolt 50 extending vertically through a pipe 51 from the junction of the two cross bars 11, 12. The carrier comprises two further iron cross bars 14, 15 supported by the vertical column and adapted to support wire mesh bags containing cultch material such as shells, cans, paper crates dipped in lime, cement, and iron and tin scrap. The barrier 16 comprises an internally baffled cylinder with its upper end closed and its lower end open. The bolt 50 passes through the closed end of the barrier and through the junction of the carrier cross bars 14, 15 and a sleeve nut 54 screwed on to the upper end of the bolt clamps the carrier, a washer 53 forming an air and watertight seal between the barrier and the support 13, and the upper end of the barrier against the upper end of the pipe 51. A second bolt 55 is screwed into the upper end of the sleeve nut 54 and is provided with a loop at its upper end for raising and lowering the apparatus. Guy wires extend from the upper end of the second bolt to the ends of the carrier cross bars 14, 15. The barrier may contain a gas or substance which is lethal or toxic to drills. Suitable lethal and toxic substances are described. Algicides may be incorporated in the toxic substances. The toxic substances may be applied as a coating to the inside of the barrier and to the support 13. The barrier may contain magnesium sulphate for attacking the feet of drills. Growth of barnacles &c. is prevented by a coating of anti-fouling paint.
Patent GB-213722-A (GB)
Title: Improvements in or relating to trunks
IPC: E05B65/50
Filed: 1923-02-01
Abstract: 213,722. Kennedy, E. N. Feb. 1, 1923. Specially shaped trunks designed to be of variable capacity.-A trunk of variable capacity has the front and rear walls of the telescopic body and cover portions a<1>, a<2> arranged substantially parallel to each other but inclined to the top and the base, so that the parts are lozenge-shaped in cross-section. The cover portion a<2> at its front wall a<3> is fitted with a member 1, Figs. 1, 3, within, which slides a member 2 having a spring- controlled pivoted pawl member 5 adapted to pass through an opening 7 into one of a series of openings 8 in the outer member 1 to lock the parts together. The pawl is actuated by its remote end bearing against the inclined surface 9 of a spring controlled pivoted eye 3, and is disengaged when the eye springs up to the raised position shown in Fig. 1, as it does after release from the lock, 10, Fig. 5. The rear wall a<4> of the cover is fitted with a similar pair of telescopic members but in place of an eye 3 the inner member terminates in a hinged part 12 secured to the body. More than one set of extensible attachment members may be fitted to the front and rear walls of the trunk. The trunk is opened by swinging back the cover portion as shown in Fig. 7.
Patent GB-528565-A (GB)
Title: Improvements in hard metal alloys
IPC: C22C29/08
Filed: 1939-01-30
Abstract: 528,565. Alloys. CUTANIT, Ltd. Jan. 30, 1939, No. 3179. Convention date, Jan. 29, 1938. [Class 82 (i)] Hard alloys, particularly for tools, consist of tungsten carbide with 1.8-4.5 per cent. of titanium carbide and 9-15 per cent. of auxiliary metal comprising one or more of the metals iron, nickel and cobalt, the auxiliary metal content being 2-5 times the titanium carbide content. The effect of working a steel containing 0.9 per cent of chromium and 4.5 per cent. of nickel with a tool having a tip made according to the invention is referred to. Specification 391,984 is referred to. According to the Specification as open to inspection under Sect. 91, the range of titanium carbide is wider, and carbides of tantalum, niobuim, vanadium, molybydenum, and chromium are referred to as constituents. This subject-matter does not appear in the Specification as accepted.
Patent GB-588320-A (GB)
Title: Improvements in or relating to typewriter platens
IPC: B41J11/053
Filed: 1945-02-08
Abstract: 588,320. Typewriter platens. BRITISH TYRE & RUBBER CO., Ltd., GLOVER, W., and EVANS, W. N. Feb. 8, 1945, No. 3241. [Class 100 (iv)] [Also in Group VIII] In a typewriter platen of the kind in which a cushion of sounddeadening material is interposed between the platen and its spindle 12, inter-fitting projections spaced by the cushion material are provided on the platen and the spindle so as to act as interengaged keys affording a positive drive between the spindle and the platen. As shown, the platen comprises a metal tube 10 covered with vulcanized rubber 11 and provided with a liner 17 at each end made of spring steel bent to form inwardlydirected projections 18 interfitting with projecting arms 14 on a spider 13 fixed to the spindle 12, the space 19 between each liner and spider being filled with vulcanized rubber. Each liner and its associated spider and cushion may comprise a unit, the rubber being moulded over and vulcanized in situ, or the cushion 19 may be separately moulded before assembly. The hollow interior 20 may be filled with vulcanized crumb rubber, sponge rubber, gelatine or kapok.