baber/WOPTO huggingface dataset:
Patent GB-753764-A (GB)
Title: Improvements relating to sulphur dyestuffs
IPC: C09B49/10
Filed: 1954-05-05
Abstract: Sulphur dyes are made by fusing 1 part of a 4-hydroxydiphenylamine of the formula:- <FORM:0753764/IV(c)/1> in which ring A can be substituted with halogen and ring B can be substituted with alkyl of 1-4 carbon atoms, whilst at least one position ortho to the -NH- group in ring B is free, with 1.5 to 3 parts of the iron-free alkali polysulphide Me2Sx (where x is 5-7) or a corresponding mixture of alkali sulphide and sulphur, in presence of water-soluble organic solvents which boil over 100 DEG C. and water, isolating the raw dyestuff obtained and oxidizing in an alkaline dispersion in absence of inorgaic sulphur compounds.  The products dye cellulose or vegetable fibres red-brown shades.  Organic solvents specified are pyridine, picoline, collidine, butanol, cyclohexanal, ethylene glycol and its ethyl or methyl ether, diethylene glycol and its methyl ether. The dyestuff may be isolated by diluting the sulphurization melt with water, removing the solvent by steam distillation, and either precipitating the dyestuff as its leuco compound by salting out or by addition of acids, or by oxidizing with air. After freeing from adherent inorganic sulphur compounds, the dyestuff may be airblown in caustic soda solution.  Examples describe the application of the foregoing treatment to (1) 4-hydroxydiphenylamine, (2) 4-hydroxy-41 (or 31 or 21)- methyldiphenylamine, (3) 2-methyl-5-isopropyl-41-hydroxydiphenylamine, (4) 4-hydroxy - 21.51 - dimethyldiphenylamine.  Dyeing examples are given.
Patent GB-768983-A (GB)
Title: Improvements in and relating to apparatus for the electric detonation of explosive charges
IPC: F42D1/05
Filed: 1955-05-05
Abstract: 768,983. Blasting. ETABLISSEMENTS D: B. SMITH & CIE SOC. ANON. FRAN. CAISE, and URBAN, F. May 5, 1955 [Feb 8, 1955], No. 13089/55. Class 68 (1). An electrical detonator-firing circuit of the kind employing a condenser discharge to provide the firing current is characterized in that the residual current in the firing circuit after detonation of the charges is reduced to safe limits by connecting an inductance coil Sf across said circuit in the vicinity of the discharge condenser or condensers C1-Cn. The inductance is such as to constitute a very high impedance to the firing disharge and a resistance may be connected in series with the inductance coil. An electric discharge lamp L can be connected in parallel with the inductance Sf to permit of checking of the insulation of the firing circuit. When a number of condensers are used they are charged in parallel and discharged in series.
Patent GB-1056095-A (GB)
Title: Closure members
Inventor: DOHERTY MICHAEL
IPC: B65D39/00
Filed: 1964-03-31
Abstract: 1,056,095. Stoppers. C.A.V. Ltd. Feb. 22. 1965 [March 31, 1964], No. 13098/64. Heading B8T. [Also in Division F2] A cylindrical closure plug 10, Fig. 2 (not shown), for fluid containers, includes an annular groove 12 containing a resilient, preferably rubber, sealing ring 13, a second annular groove 14 accommodating a circlip 15, bearing against, or entering a groove in the wall of a hole in the container to retain the plug, a portion 16 of the upper face of the plug being cut away to permit the circlip 15 to be compressed to remove the plug. Withdrawal of the plug is further facilitated by one or two screw-threaded blind bores in the upper end of the plug, Fig. 1 (not shown). to receive an extraction tool. The circlip may, as shown, abut a step in the hole to limit the entrance of the plug, or alternatively the plug may be of complementary stepped form.
Patent GB-1444232-A (GB)
Title: Disperse azo dyestuffs
IPC: C09B43/20
Filed: 1973-03-19
Abstract: 1444232 Disperse azo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Feb 1974 [19 March 1973] 13111/73 Heading C4P [Also in Division C2] Novel dyestuffs, free from SO 3 H groups, of formula (where D is the residue of a diazo component of the optionally substituted aromatic hydrocarbon series; X and Y are H, Cl, Br, alkyl or alkoxy; A is an alkylene radical of at least 2 carbon atoms; and n is 2 or 3) are prepared by diazotization and coupling or by esterifying a compound of formula above where the group -A-OCO(CH 2 ) n COOH is replaced by -AOH, with succinic or glutaric acids or their anhydrides. Preferred dyes are derived from 4- nitroaniline or its 2 or 2,6-substituted derivatives. The dyes are used to colour polyester materials in yellow to navy shades.
Patent GB-131245-A (GB)
IPC: A47L13/11
Abstract: 131,245. Nelson, W. March 13, 1919 Brushes combined with squeegees.-A combined brush and squeegee suitable for cleaning papered walls, floors, &c., comprises a number of brush sections a, b, c and interposed rubber strips d, e, all held together by bolts i. By slackening the bolts, the rubber strips can be adjusted as desired. The centre brush section b is formed to receive a handle g or hand strap h.
Patent GB-872911-A (GB)
Title: Improvements in or relating to manually operated wrenches
IPC: B25B13/46
Filed: 1960-04-13
Abstract: 872,911. Wrenches. HARE, T. G. April 13, 1960, No. 13184/60. Class 61. A reversible ratchet wrench comprises a rotatable member 14 journalled in a cylindrical opening 13 in the head 12, the opening 13 having a wedge shaped cavity 16 in which a wedge shaped pawl 19 is spring biased to move in a radial direction towards the member 14 and has an arcuate saw of teeth along one edge engageable with ratchet teeth 15 on the member 14, the pawl being shiftable in the cavity circumferentially of the rotatable member 14 in opposite directions as limited by engagement of the side walls of the pawl by the side walls of the cavity 16. As shown, a coil spring 26 is positioned between the pawl 19 and a pin 23 rotatably mounted in the body of the wrench. The pin has a handle 35 by which it may be rotated from a first to a second position, to shift the axis of the spring and with it the pawl, between one side and the other of a line extending between the pin and the axis of rotation of the rotatable member. The pin is locked in one or other position by a spring pressed ball 32 and detent means. The cylindrical member 14 has an axial projection 50 which provides a disconnectable connection for socket wrenches or the like. A cap 39 having a tab 40, and an annular wall 44 having a tab 45 are sealed to the head to provide oil seals. In a modification, Figs. 9-12 (not shown), the movement of the pawl is guided by an upwardly extending pin attached to the foremost end of the spring, the pin being adapted to move in a V-shaped slot in the body. In another modification, Figs. 13, 14 (not shown), an endless coil spring is provided of greater outer diameter than that of a circumferential groove in the circular rotatable member in which it is positioned. A portion of the spring extending between the pawl and the cavity moves the pawl radially outwards during the shifting of the pawl from one position to the other.
Patent GB-479405-A (GB)
Title: Improvements in or relating to means for applying transverse wires to machines for welding wire netting
IPC: B21F27/10
Filed: 1937-05-10
Abstract: 479,405. Making wire netting. JAGER, sen., E., and JAGER, jun., E., (trading as JAGER, E., [Firm of]). May 10, 1937, No. 13333. Convention date, May 9, 1936. [Class 83 (iv)] In a machine for applying and welding transverse wires 1 to longitudinal wires 4 in the production of wire netting, the longitudinal wires 1 are arranged between the electrodes 2, 3 and the transverse wires brought over them to effect the weld. The cross-wire feed is effected by drums 5, 6 on a shaft rotated intermittently by ratchet-and-pawl mechanism &c. Pairs of co-operating, insertion shuttle-like grippers and tongs-like grippers 9, 10 are arranged on the drums and are reciprocated longitudinally by stationary cams 11, 12. Each gripper 9 is supplied from a spool of wire 14 in the drum 5. The wire passes over directing and tensioning pulleys 17, Fig. 2, in a slot in each gripper 9, then beneath a spring- controlled locking-device 20 to an axial bore 18. The grippers 9. 10 are moved inwardly together by the cams. Each gripper 10 carries a rod 23 which through links 22 operates jaws 21 to grip the wire. Each rod 23 is operated to grip the wire by a lever 25 which through a roller 26 engages a stationary stop 27. The grippers move from the bottom position to the top position drawing the wire 4 across the wires 1. The upper electrode 2, which is normally spaced from the electrode 3, is lowered and effects the weld. Shears 29 cut of the wire 4, and an abutment 30 is operated by a cam 34 and rack-and-pinion mechanism 31, 32 to release the jaws 21.
Patent GB-133376-A (GB)
IPC: H05B31/16
Abstract: 133,376. Heape, W., and Grylls, H. B. Aug. 2, 1918. Are-lamp electrodes. - Carbons, particularly those for search-lights, are placed while dry in a chamber which is exhausted before the carbons are immersed in a solution of a light.modifying substance. Heat may be applied before or during exhaustion, to assist in removing gases from the carbons. Immersion may be total, or capillary attraction may be relied on to complete the impregnation. The liquid may be forced into the vacuum chamber by atmospheric pressure. The solutions may be of the kinds described in Specifications 126,673 and 128,057.
Patent GB-636844-A (GB)
Title: Improvements relating to electric terminals
IPC: H01R4/50
Filed: 1948-05-18
Abstract: 636,844. Binding-posts; sleeve couplings. BENTON & STONE, Ltd., and MILNER, C. E. May 18, 1948, No. 13398. [Class 38 (i)] A terminal comprises a metal socket e, one end of which engages a screw a on an insulating panel b and having a wire c connected thereto, to which a cable d is to be connected. A hollow spigot f screwing into the other end of socket e carries on its end a conical contractible collet i which, on engaging a conical shoulder g in the socket, grips the cable core k passing through the spigot, a deep groove being provided between the collet and the spigot so that on tightening the latter, the metal between them is fractured. The spigot may comprise the fixed part attached to screw a on to which the bored socket screws. For connecting two cable ends, a central socket or spigot has a spigot or socket with collet attached to each end.
Patent GB-611646-A (GB)
Title: Improvements in a device in easels for carrying pictures
IPC: A47B57/30
Filed: 1946-05-02
Abstract: 611,646. Stands. NILSSON, N. A. May 2. 1946, No. 13414. Convention date, July 2, 1945. [Class 52(iii)] Means for supporting pictures &c. on easels comprises a sleeve 7, slidable on each of the front legs, to which sleeve is pivoted at 8 an arm 11 which has a tail piece 9 which is adapted to snap into one of a series of holes, notches, &c. 10 in the legs 2. The arms 11, which may be of wire or strip material, are supported in operative position by an abutment 12 on the sleeve 7 and the picture is clamped by means of an upper arm or arms which are arranged at the top of the legs 2.
Patent GB-1167672-A (GB)
Title: Apparatus for Controlling Liquid Flow from a Hollow Rotary Chamber
IPC: F16D33/12
Filed: 1968-03-20
Abstract: 1,167,672. Hydrodynamic coupling; valves. VOITH GETRIEBE K.G. 20 March, 1968 [22 March, 1967], No. 13445/68. Headings F2C and F2V. The emptying of a fluid coupling or other rotary casing through discharge orifices 8 is controlled by a flexible spring steel ring 9 rotatable relative to the coupling to align holes in the ring 9 with the orifices 8. The edges of the ring 9 are supported by studs 10 which slide on a cylindrical surface of the impeller 2. The ring 9 is pivotally connected to levers 24 carried by radial rods 23. The inner end of each rod 23 carries two levers 25, 26 respectively pivoted to rings 33, 34 which are moved right by servos 35, 36 to rotate the rods 23 and ring 9 in one direction or the other. Tubes 18a, 18b project radially inward from some orifices 8 to permit partial emptying of the coupling. The ring 9 may be provided with bleed holes to permit continuous circulation through the coupling. As shown the orifices 8 pass through a ridge 11 on which the ring 9 slides. In Fig. 2 (not shown), each orifice 8 carries a bush (15) urged by a spring (17) into contact with the ring (9). In Fig. 3 (not shown), an annular boss is provided round each orifice (8) and is engaged by the ring (9). The coupling is filled through a pipe 7. The ring 9 may be of laminated construction.
Patent GB-1280072-A (GB)
Title: Capacitance responsive circuit
IPC: H03K17/975
Filed: 1970-03-20
Abstract: 1280072 Proximity switching systems WAGNER ELECTRIC CORP 20 March 1970 [16 April 1969] 13470/70 Heading G1N [Also in Division G4] In a capacitive proximity sensor, a relaxation oscillator 34 is supplied with a D.C. voltage derived by stepping up the output of a batterydriven oscillator 14, the output of the relaxation oscillator 34 being a function of the capacitance of an antenna 44, said output being amplified at 48, 60 and use to operate an alarm or indicator 81. As described, the oscillator 14 provides a series of pulses each including a plurality of high frequency alternations which are rectified at 28 so as to provide power for a relaxation oscillator 34. If a person moves into proximity with antenna 44, the output of oscillator 34 increases, the resulting voltage being amplified by transistor 48 and rectified by voltage doubler 54, 56, the resulting voltage being amplified at 60 and used to turn on a trigger circuit 70, 72 which operates a relay 76 so as to set off an alarm 81. The alarm is re-set by contacts 84. Part of the output of oscillator 14 is rectified at 86 and used as bias for the trigger circuit 70, 72. In Fig.2 (not shown) resistor 46 is replaced by a series-parallel switched arrangement of resistors so as to control the sensitivity of the system. In Fig.4 (not shown) transistors 70, 72 are replaced by a single transistor, the relay having a hold-in contact.
Patent GB-135329-A (GB)
IPC: A44C5/08
Abstract: 135,329. Webber, F. C. Dec. 6, 1918. Bracelets.-In expanding bracelets, each spring element, which abuts against one end e<2> of an intermediate link and against a cross-bar e passing therethrough and joining the outer links, is composed of two springs h, g having at their meeting ends a connecting-piece j of the same length as each of the springs when fully compressed The piece has a socket-like centre j<2> into which the spring h fits, the spring g fitting over the socket and abutting against a flange j<3>. In a modification, for use with a thinner intermediate link, three springs h, i, i<2>, Fig. 4, are used, the connecting-piece j being bent from a strip of metal into crank form to provide a socket for the spring h and flanges for the ends of the springs i, i<2>.
Patent GB-135617-A (GB)
IPC: F23D14/62
Abstract: 135,617. Kirke, P. St. G. Nov. 29, 1918. Gaseous-fuel furnaces; baffles. - In steamgenerators or liquid-heaters comprising one or more combustion tubes extending through the liquid to be heated, a single or multiple threaded screw of cast iron is arranged in each combustion tube, and means are provided for forming within the tubes a combustible mixture of gas and air in substantially the theoretical proportion for complete combustion or a mixture in which the air does not exceed 10 per cent of the amount theoretically necessary for complete combustion. Gas is supplied to the end of each tube b from a burner box c, as described in Specification 124,016, and together with air, which is drawn into the tubes, impinges on the helical baffles h. The correct ratio between the gas pressure and draught is maintained by apparatus such as described in Specification 135,542. In the case of a double or multiple threaded screw baffle, two or more gas jets delivering into each of the separate passages formed by the baffle may be provided for each tube. Additional baffles, such as described in Specifications 17842/15 and 130,234, may be arranged in an extended part of the same tube or in return tubes to accelerate the transmission of the sensible heat from the combustion products. The products of combustion may be utilized for heating a superheater.
Patent GB-167848-A (GB)
Title: Improvements in and connected with trouser and like presses
IPC: A47G25/72
Filed: 1920-05-17
Abstract: 167,848. Fuller, D. May 17, 1920. Combined presses and stretchers.-In a trouser and like press of the type which ordinarily forms part of a chair back, the press members are hinged Lengthways of the back feet of the chair. Near the top and bottom of the back feet a are fitted strips of wood b having slots c to receive bolts d carried by the back press members e. Movable strips e<1> are hinged at f either directly to the strips e or to separate members g fixed by spring-pressed bolts h to the strips e. Hinged wedges k are adapted to occupy a space left between the seat i and the press members, and to apply pressure to the movable strips e<1>. In an alternative form, this space is dispensed with, the strips e' having slots to correspond with the thickness of the seat, or the seat may be removable, and several additional devices are described for applying pressure to the strips e'. A trousergripping device to facilitate stretching is arranged at the top of the chair back, and comprises buttons q pressed by springs against a ledge or top-plate t.
Patent GB-110353-A (GB)
Title: Improvements in or relating to Contact Rings for Dynamos and Electric Motors.
IPC: H02K9/28
Filed: 1917-09-24
Abstract: 110.353. Compagnie " Universel Electric " (Roulland freres et Cie). Oct. 11, 1916, [Convention date]. Alternating-current motors; collecting-rings.- Collecting-rings 3 are mounted concentrically upon arms 2 carried by a hub 1 keyed to the shaft of the machine and are adapted to engage brushes 21, and wide ribs 4 on the arms serve to strengthen them and to cause a current of air to pass through the machine for ventilation. The ends of the windings are soldered in depressions 12 in bars 10 connected to each ring. In an asynchronous motor, the ring-holder 2 is slidably mounted on the shaft as by a keyway 14 so that it can be moved by a spring 18 to bring the rings 3 into contact with short-circuiting conductors 17 carried by arms 16 on a boss 15 keyed to the shaft. The arms 16 are shaped so as to assist in the ventilation of the machine. In starting, the rings 3 are held away from the short-circuiting conductors 17 by a lever connected at 20 to the hub 1.
Patent GB-852106-A (GB)
Title: Instrument housing for motor vehicles
IPC: H01H23/02
Filed: 1959-04-23
Abstract: 852,106. Snap-action switches. SWFSPEZIALFABBIK FUER AUTOZUBEHOER G. RAU G.m.b.H. April 23, 1959 [April 23, 1958; July 17, 1958; Aug. 22, 1958; Dec. 6, 1958; Jan. 22, 1959], No. 13795/59. Class 38 (5). [Also in Group XXXI] Toggle switches for controlling electric circuits of a motor vehicle are disposed on the housing of a speedometer. A toggle switch may comprise a hollow member 5, Fig. 2, pivoted at 10 and containing a spring-loaded ball 14 which engages either of two recesses 15 in the seating, in one position a spring-loaded metal shoe affording contact between a pair of contact elements 21. In a modification, Fig. 10, the hollow casing 5<SP>1</SP>, weakened at 83 to allow it to be snapped over bearing elements 81 in the side of the switch casing, comprises a spring-loaded contact member 88 which may be brought into engagement with one or two contact pairs 91 separated by a rivet 93. The seating may be provided with rubber cushions 96. In a further modification, Fig. 12, a similar construction is used as a circuit breaker, and in one construction, Fig. 7, an illuminating bulb 78 may be provided within the housing. In the other constructions the switches are illuminated from lamps at the rear of the instrument, the housings 5 being of translucent material.
Patent GB-901719-A (GB)
Title: Process for the production of hyodesoxycholic acid
IPC: C07J75/00
Filed: 1961-04-17
Abstract: Hyodesoxycholic acid is obtained from crude bile acid mixtures by esterifying said mixture, dissolving the resultant ester mixture in an alkyl ether containing 4-8 carbon atoms, adding to the ethereal solution an aromatic amine of the general formula: <FORM:0901719/IV (b)/1> in which X1, X2 and X3 are hydrogen atoms or alkyl radicals and X1 and X2 can also be a fused benzene ring, separating off the hyodesoxycholic acid ester-amine adduct which thereby precipitates and decomposing it into its components, and saponifying the thus obtained hyodesoxycholic acid ester.  As the aromatic amines there may be used aniline, a toluidine, a xylidine or one of the corresponding ethyl or propyl homologues, b -naphthylamine or a 3-alkyl-b -naphthylamine.  The crude starting mixture is obtained by saponifying pig bile.
Patent GB-708885-A (GB)
Title: Electrical contact means
IPC: H01H50/54
Filed: 1952-05-30
Abstract: 708,885. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 30, 1952 [June 6, 1951], No. 13859/52. Class 38(5) Movable contact springs such as shown in Figs. 1 and 3 are clamped in a pile-up by means of their portions 1c, are supported in the middle of their limbs 1a by an adjustable slide 5 and pivot about this support, when a lifting pin 4 moves their righthand ends by means of teeth 3, to bring their lefthand ends into engagement with fixed contacts 10. The lifting pin 4 may be actuated as shown by the armature 7 of a relay and further adjustment is provided by the screw 17 and the screw 12 which when loosened allows the core 8a to be moved relatively to the yoke 6. In a modification the slide 5 grips both the fixed and the movable contact springs and the armature moves vertically instead of horizontally.
Patent GB-1002285-A (GB)
Title: Scanning device for light tracking systems
IPC: G01S3/786
Filed: 1962-04-10
Abstract: 1,002,285. Photo-electric tracking. KALLSMAN INSTRUMENT CORPORATION. April 10, 1962 [May 22, 1961], No. 13870/62. Heading H4D. In a light tracking device two images are produced simultaneously, Fig. 1 (not shown), and are scanned utilizing a single tuning fork 32. For the scanning of one image a slotted plate 35 is carried by tine 33 and is obturated by a stationary slotted plate 39; for the other image a slotted plate 36 is carried by tine 34 and is obturated by a stationary slotted plata 40. The automatic alignment of the device on to a light source is effected as described in Specification 946,426. When a " quiet " background, e.g. the night sky, surrounds the source to be tracked plates 39 and 40 may be omitted. Specifications 946,425 and 966,245 also are referred to.
Patent GB-333210-A (GB)
Title: Method of releasing the pressure of mixtures of solids and liquids existing under high pressure
IPC: F04C2/16
Filed: 1929-05-04
Abstract: 333,210. Harrison, C. F. R., Labrow, S., and Imperial Chemical Industries, Ltd. May 4, 1929. Hydraulic accumulators. -In processes in which mixtures of solids and liquids are treated under high pressure, e.g. in the destructive hydrogenation of mixtures of coal and oil, the pressure is gradually released without erosion of the apparatus by causing part of the potential energy of the system to be expended in the performance of external work without allowing any substantial development of kinetic energy of the particles of liquid or solid. The mixture may be passed through an extraction pump of a reversible nature which acts as a motor. Examples are given of the use of screw viscosity, drum, gear, and ram pumps. The mixture of liquids and solids contained under high pressure in a vessel 5 is allowed to flow through a screw viscosity pump comprising a cylindrical casing 1 acting as a bearing for a shaft 2 provided with spiral channels 3 through which the mixture passes.