baber/WOPTO huggingface dataset:
Patent GB-444131-A (GB)
Title: Improvements in or relating to tank vehicles
IPC: B60P3/22
Filed: 1934-12-19
Abstract: 444,131. Tank vehicles. ALUMINIUM PLANT & VESSEL CO., Ltd., BURSTALL, A. F., and HILLS, J. G. B., Northfield House, Point Pleasant, Wandsworth, London. Dec. 19,1934, No. 36412. [Class 108 (i)] Tanks are mounted on undercarriages of vehicles by means of a number of preformed metallic units which are welded together after being assembled in position, the formation of the units being such that similar units may be used for mounting tanks on undercarriages of different types and widths. The tank is supported in position by arcuate metal bearers a supported by pre-formed elements b each pair of which is connected together by a tube c passing through the bearer a, a rubber bush d being preferably provided. The elements b preferably pass through apertures in the upper flange of a channel h which is connected to the undercarriage and the lower ends of the elements b are supported in sleeves e. The elements b are then welded in position at 10, 12, 14, 16.
Patent GB-856131-A (GB)
Title: Improvements in or relating to transducers
IPC: H02K33/10
Filed: 1956-11-28
Abstract: 856,131. Vibration detectors; magnetic amplifiers. SYNTRON CO. Nov. 28, 1956 [July 20, 1956], No. 36448/56. Classes 40 (4) and 40 (9). [Also in Group XXXV] The driving current of a pulsed vibration generator is controlled by the output of a vibration detector mounted on the vibrating body, the amplitude of vibration of which is in consequence kept constant, the vibration detector comprising a reed-mounted permanent magnet, forced oscillation of which generates output in an associated coil. The invention is applied to a jigging conveyer. Vibration detector.-A U-shaped permanent magnet 43 mounted at one end of a flexible plate 44, which is clamped at its other end in a casing 37, may oscillate across the opposed pole faces of an upturned U-shaped core 51 wound with a coil 50. The core and coil 50, 51, are mounted on a table 57 which is universally adjustable by means of three adjusting-screws 54. The detector is mounted on the driven part of the jigging conveyer with the plane of the flexible plate 43 normal to the line of drive so that every time the feeder is impulsed the permanent magnet is forced to execute a single oscillation and produce output in the coil 50. The magnet is somewhat offset from the core 51. Magnetic amplifier.-Output from the coil 50 is rectified at 60 and over a smoothing circuit drives control winding 32 common to two cores 30, 31. The cores also have a common bias winding 33 driven in opposition to the control winding. The amplifier is damped by a common short-circuit winding 28. Excitation windings, 22 and 23, in series with a load 21 are wound on each core so as to be decoupled from the other windings. Whenever the cores 22, 23 reach saturation under drive over the saturation windings a firing voltage is applied to a thyratron 3 to impulse a solenoid winding 1 driving the jigging conveyer. The greater the amplitude of vibration, the greater the signal in coil 50 providing a control current to oppose bias, and the later in an excitation cycle that thyratron 3 will fire so that less drive is applied to solenoid winding 1 and the vibration amplitude is decreased. The smaller the amplitude of vibration the smaller the signal in coil 50 and the less the opposition to bias so that the thyratron is fired earlier in an excitation cycle and the solenoid coil is driven harder to increase the amplitude of vibration. An overload, underload, reset relay circuit is provided and uses a relay CR in the input circuit which opens contacts 88cr1 when control current exceeds 0.1 m.a. and closes contacts 89cr1 when the control current exceeds 0.9 m.a. Outside this range of control current, a relay CR2 operates to release relay MC which disconnects the solenoid winding 1. A start button 83 connects up a second winding 85 of relay CR1 to disconnect contacts 88 and lock up the relay MC over contacts 91 MC. In the bias circuit a changeover switch 77 may select alternative bias control resistors 73, 78. The amplifier is described and claimed in Specification 856,132.
Patent GB-1434906-A (GB)
Title: Liquid crystal display arrangements
IPC: G02F1/1335
Filed: 1972-08-04
Abstract: 1434906 Controlling light MARCONI CO Ltd 16 July 1973 [4 Aug 1972] 36480/72 Heading H4F [Also in Division G5] The reflective surface of the backing electrode 1 of liquid crystal 2 display device is grooved or pitted so as to reflect ambient light away from the eyes of an observer and thus improve contrast. A dark background 5 improves the effect. The display pattern is etched on glass plate 4 coated with transparent conducting tin oxide, and the grooved rear plate is coated with aluminium or gold. The grooving or pitting of the rear plate may be performed by a photo-lithographic process, or simple pitting may be produced by immersing the plate is hydrofluoric acid. Machining or hot pressing are alternative methods.
Patent GB-1438103-A (GB)
IPC: H01R9/03
Filed: 1972-08-04
Abstract: 1438103 Cable connector PIRELLI GENERAL CABLE WORKS Ltd 17 July 1973 [4 Aug 1972] 36508/72 Heading H2E A connector for connecting one or more branch lines to a mains cable 20 which has one or more phase conductors as 22, 24, 26 in the embodiment of Fig. 1, sheathed by tubular neutral conductor 28, comprises conductive clamping means 10 and phase connection means 34, supported by insulating member 36 in groove 38 and bearing teeth 40 which penetrate the insulation of conductor 26, when conductor 28 has been stripped from it between edges 30 and 32, and including branch line connection means as aperture 42 with tapped hole 44 securing a clamping bolt, and branch neutral connection means compressing aperture 48 and tapped hole 50 with a clamping bolt. The clamping means 10 which encircles cable 20 comprises shells 12 and 14, which has a concave serrated cylindrical portion 46 arranged to abut conductor 28, and these are clamped together by bolts in tapped holes 16 and clearance holes 18. In a second embodiment Fig. 2, the aluminium shells 62 and 60 of the clamping means 10 extend circumferentially 240 and 120 degrees respectively. Two phase connection means each comprise clamping member 64 with slot 70 connected at its sides to two axial apertures 72 and a radial tapped hole 68 receiving a clamping bolt 74 which penetrates its phase conductor and distorts member 64 to clamp the branch phase connectors which can be accommodated in four apertures 72. The heads of bolts 74 shear off at the desired clamping pressure. Four branch neutral conductors are accommodated in the connection means 63. In a third embodiment (Fig. 3, not shown) the member 10 is divided into three equal segmental clamping members (80, 82, 84) each provided with an insulated phase connection means similar to that of Fig. 1. To mount the cable a flat (88) of the conductor 28 is peeled back, exposing all three phase conductors, and gripped between faces (90, 92) of members (80, 82).
Patent GB-971943-A (GB)
Title: Improvements in and relating to mineral active carbons and to a process for their preparation
IPC: C01B31/08
Filed: 1960-10-25
Abstract: Active carbon is produced by chlorinating a carbide or carbonitride of a metal or metalloid at 800-1, 800 DEG  C., volatilizing the resulting chloride, and dechlorinating the resulting carbon. The substance chlorinated may be silicon, boron, titanium, zirconium, or aluminium carbide; or titanium or zirconium carbonitride. Chlorination may be in the static or fluidized bed.  Residual chlorine may be removed by a cyclic fluctuation in temperature or pressure. Dechlorination of the carbon may be effected by subjecting to a vacuum; heating to 200-300 DEG  C.; treating with a stream of steam, dry air, nitrogen, carbon dioxide or argon; or washing with water or an aqueous solution of alkali hydroxide, carbonate, or bicarbonate, ammonia, alkali bisulphite, hyposulphite, or thiosulphate, hydrogen peroxide, or hydrogen chloride.
Patent GB-988733-A (GB)
Title: Improvements relating to mounting arrangements for electric furnace electrodes
Inventor: ALLEN ALEC GEORGE
IPC: H05B7/107
Filed: 1962-09-27
Abstract: 988,733. Mounting of arc electrodes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 27, 1963 [Sept. 27, 1962], No. 36757/62. Heading H5H. In a mounting arrangement for an arc electrode 1 for an electric smelting furnace, the electrode is supported by clamping girdles 2, 3 and contact clamp 4. Each girdle comprises an axially split cylinder, the frictionally force of which on the electrode is adjusted by springs 2a, 3a. The girdle 3 is movable by power jacks 7 relative to a platform 5 which directly supports girdle 2 and also clamp 4 by a cooling mantle 6. The spring-loading of the girdles is adjusted so that the clamping friction forces are equal and jointly support the weight of the electrode. The contact clamp 4 is preferably adjusted for a clamping force equal to that of a girdle so that a girdle or the clamps can be slackened off for servicing. With the clamping forces so adjusted a downward motion by the jacks 7 causes the electrode 1 to be moved downwards and an upward motion by the jacks causes the girdle 3 to move relative to the electrode. The sequence is repeated to cause further electrode movement. The electrode can be of the consumable self-baking type comprising a metal-cased graphite paste.
Patent GB-1309685-A (GB)
Title: Chain for a conveyor
IPC: F16G13/07
Filed: 1970-07-30
Abstract: 1309685 Conveyer chains REALISATIONS METALLIQUES RM 30 July 1970 [4 Aug 1969] 36827/70 Heading F2Q A conveyer chain consists of indentical forked links 1, the single-limbed portions 12 of which have plain circular pin holes 13 while the fork arms 5, 6 have keyhole slots 7b, 8b, to  facilitate rapid assembly or dismantling. With  adjacent links placed at right angles the pin 10 may be inserted through the aligned circular openings 3, 7a, 8a, after which the reduced diameter end portions 10b, 10c of the pins are  slid along the slots 7b, 8b to permit the links to be rotated into line to lock the pins in position, the reverse procedure being followed to dismantle the links.
Patent GB-1269414-A (GB)
Title: Compositions
Inventor: MARKOWSKI HENRY JOSEPH
IPC: H01B3/30
Filed: 1969-07-23
Abstract: 1,269,414. Insulative coatings. GENERAL ELECTRIC CO. 23 July, 1969 [22 Aug., 1968], No. 37141/69. Heading B2E. [Also in Division C3] Fibrous materials, e.g. glass cloth, mica and paper are coated and impregnated with an electrically insulating composition comprising: (I) an acid-rich saturated polyester comprising the reaction product of 20-50 mole % of a saturated aliphatic acid, e.g. adipic acid, up to 25 mole % of isophthalic acid, terephthalic acid, lower alkyl esters thereof or mixtures of two or more thereof, 35-45 mole % of a diol and 1-10 mole % of a triol, (II) one or more epoxy resins, (III) polyvinyl acetal and (IV) finely divided filler. The composition may contain 45-65 parts by wt. of I, 35-55 parts by wt. of II, 100-250 parts by wt. of III (as a 10% soln. in organic solvent) and 0.1 to 10 parts by wt. of IV, e.g. silica.
Patent GB-374779-A (GB)
Abstract: 374,779. Electric thermometers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Marcellus, F. S. ; 145, Bruce Street, Scotia, New York, U.S.A.) Nov. 30, 1931, No. 33168. Convention date, Nov. 28, 1930. [Class 97 (iii).] A temperature-respon$ive device utilizes changes in ionization with changes in temperature. The ionization of the air in a furnace may be used to control the current in a circuit including a battery, an indicating instrument, and spaced insulated electrodes inserted into the furnace. In the form shown in Fig. 2, suitable for measuring temperatures from 1300 to 1600‹ C. two electrodes 13, 15 of silicon carbide are held in spaced relation by an insulating spacer 16 of glass at the cold end of the unit, and are in series connection with a battery 17 and measuring instrument 18. In a modified form shown in Fig. 3, suitable for temperatures between 1450 and 2000‹ C. a third intermediate electrode 14 biased by a battery 19 is provided.
Patent GB-302919-A (GB)
Title: Safety device for the operation of lifts
IPC: B66B5/00
Filed: 1928-12-19
Abstract: 302,919. Soc. Etablissements Edoux- Samain., Dec. 23, 1927, [Convention date]. Electric plant.-In an electric lift system switches C1, C2 are arranged in parallel in the control circuit, the former of which is opened at the end of a predetermined interval after the operation of brake 7, starter, &c., and the latter of which is closed by the action of a governor 10 driven by the cage. If the cage is not moved when the hoisting pulley 4 is driven, owing to overload, rope slip, &c., the switch C2 is not closed, and after the predetermined interval of time has expired the switch C, is opened, current is cut off, and the pulley stopped.
Patent GB-902641-A (GB)
Title: Improvements in and relating to drum dryers for paper-making machines
IPC: B23K5/00
Filed: 1958-11-24
Abstract: 902,641. Yankee dryer drums of papermaking machines. KIMBERLY-CLARK CORPORATION. Nov. 24, 1958 [Nov. 29, 1957], No. 37756/58. Class 96. The shell 4 of a Yankee dryer drum of a paper-making machine is formed of plates, e.g. rolled plates, of steel, aluminium, or bronze, welded together, and so shaped that all weld seams lie at an angle with respect to the axis of the drum, e.g. greater than 5 degrees, 30 to 60 degrees being mentioned. The arrangement avoids chattering of a doctor blade 31, improves balance, gives uniformity of wear and internal stress and reduces distortion. The shell may be constructed by welding together pairs of similar trapezium-shaped plates 43, 44, Fig. 5, along their short sides 45 to form parallelogram-shaped plates 46 and then welding these together along their long sides 47. In a modification, Fig. 8, the shell is formed of rings 49 and wedge-shaped end-portions 50. A hood provided with hot air inlets and outlets may cover the upper part of the drum.
Patent GB-1468453-A (GB)
Title: Impact rock fracturing machine
IPC: E02F3/36
Filed: 1974-08-19
Abstract: 1468453 Rock breaking machines CATERPILLAR TRACTOR CO 19 Aug 1974 [23 Aug 1973] 37850/76 Divided out of 1468452 Heading E1F The disclosure is substantially identical to that of the parent Specification but the claims are directed towards the mounting linkage of the impact tool.
Patent GB-1192383-A (GB)
Title: Improvements in or relating to Liquid Measures
Inventor: YOUNG ROBERT WILLIAM
IPC: G01F11/32
Filed: 1966-08-24
Abstract: 1,192,383. Delivering measured quantities of liquid. AUTIC DEVELOPMENTS Ltd. 22 Aug., 1967 [24 Aug., 1966], No. 37921/66. Heading B8N. A device for dispensing measured quantities of liquid comprises a measuring chamber 2, a normally-open inlet valve 38 and normallyclosed outlet valve 37, and an interlock mechanism which includes a time delay device 85 and is operative to prevent reverse changeover of the valves after a dispensing operation until an adequate delay has elapsed for the chamber to drain completely and to prevent another operative movement of a dispensing member 4 with attendant change-over of the valves until a further delay has elapsed adequate to allow the chamber to refill. The valves are formed on a spindle 36 which is connected by means of a rod 45 to a pivoted lever 58, coupled by an over-centre leaf spring 62 to a pivoted link 63. The dispensing member is in the form of an operating arm 4 against which a glass or other container is adapted to be pressed, and is pivotally connected to two pairs of links 73, 75 which are pivoted on pins 74, 76 fixed in a bracket 20. An interlock lever 78 is connected to links (82, Figs. 3, 4) which are pivoted on the pins 74, 76 and is coupled to a dashpot bellows time-delay device 85. In operation, with the dispensing device in the position shown, a container is pressed upwardly against the arm 4 thereby raising the lever 78 until an end 118 thereof abuts the link 63. This causes the overcentre spring 62 to rapidly actuate the lever 58 and so reverse the position of the valves thereby allowing the liquid in the chamber 2 to be dispensed, an air vent valve 48 being opened by the rod 45; the interlock lever is maintained in the raised position by means of a pawl 97 engaging with a step 117 on a hanging link 92. Upon release of the arm 4, the interlock lever commences to move downwardly slowly under the action of a spring 86 within the bellows thereby allowing time for the chamber to drain. After a certain downward movement, the overcentre spring device causes the valves to return to their initial position so as to allow the chamber to fill from a bottle secured to an inlet pipe 1. The time allowed for filling is determined by the setting of a vent valve 88 on the bellows. At the end of this period an abutment 93 on the interlock lever contacts a projection 94 on the link 92 thereby moving it out of engagement with the arm 4 so that a further operation of the device can be effected. A counter 120 is provided.
Patent GB-1139599-A (GB)
Title: Improved electric motor input circuit arrangement
Inventor: CATTERMOLE ROGER EDWARD
IPC: H02P7/292
Filed: 1966-08-24
Abstract: 1,139,599. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 26 July, 1967 [24 Aug., 1966], No. 38019/66. Heading H2J. A motor M is supplied through thyristor T, having firing circuit FC, from rectifier bridge B connected to an A.C. source. When the thyristor is conductive the voltage developed across resistor R1 charges capacitor C1. At the end of each half-cycle the current through the circuit FC falls to zero, the thyristor being extinguished due to the capacitor-charge, and the inductance of the motor cannot maintain a current through the thyristor. The diode D1 protects the circuit FC from reverse voltage due to motor commutation, and diode D2 provides a path for the discharge of energy stored in the motor. When the thyristor is fired, initial conduction occurs through resistor R2 until the voltage thereacross exceeds any reverse voltage developed across the motor, whereby the firing of the thyristor is not influenced by such reverse voltage.
Patent GB-1397365-A (GB)
Title: Treatment of zinc surfaces to inhibit wet storage staining  and products employed therein
IPC: C23C22/05
Filed: 1973-08-10
Abstract: 1397365 Thioglycolates NORANDA MINES Ltd 10 Aug 1973 [21 Aug 1972] 38077/73 Heading C2C [Also in Division C7] 1,2,6-hexametriol trithioglycolate, glycerol dithioglycolate and inositol di- and trithioglycolate are prepared by refluxing the appropriate mole proportions of thioglycolic acid and the relevant polyol in xylene under a nitrogen blanket.
Patent GB-1406505-A (GB)
Title: Paste vehicle and colour paste containing the same
IPC: H01L23/12
Filed: 1972-08-16
Abstract: 1406505 Vehicles for colour pastes KARL FINKE oHG 16 Aug 1972 [26 Oct 1971] 38144/72 Heading C4A A vehicle for colour pastes comprises a mixture of 65 to 95% by weight of a sorbitan fatty acid ester or a mixture of sorbitan fatty acid esters, which ester or mixture of esters may be replaced in part by an ester of a saturated or unsaturated fatty acid other than a sorbitan fatty acid ester or a mixture of such saturated and/or unsaturated fatty acid esters, or by a polyoxyethylene alkyl- and/or alkaryl-ether, and 5 to 35% by weight of calcium carbolate. In the examples the vehicles comprise sorbitantrioleate, calcium carbonate, sorbitan-monooleate, a fatty acid ester having a viscosity of 28 Cp. at 20‹ C., polyoxyethylenelaurylether and polyoxyethylenenonylphenylether.
Patent GB-1014454-A (GB)
Title: Improvements in and relating to fasteners
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/12
Filed: 1963-09-27
Abstract: 1,014,454. Clips. F. T. PRODUCTS Ltd. Sept. 22, 1964 [Sept. 27, 1963], No. 38212/63. Heading E2B. A fastener formed of a single strip of resilient material comprises a pair of substantially parallel arms 13, 14 joined by a web 12 so as to form a U-shaped portion 11, the ends of the arms remote from the web being extended outwardly and then rearwardly in the form of limbs 15, 16 the free ends of which are inclined inwardly as fingers 17, 18 each limb having a tongue 20, 21 with an outward projection 22, 23 and each arm having a pair of prongs 19 directed inwardly and towards the web. The tongues 20, 21 are sheared and bent out of the limbs 15, 16 respectively, each tongue being kinked to form outwardly directed elbows 22, 23. The fastener may be used to attach a T-section cover-strip over the mouth of a channel-shaped member (Fig. 4 not shown). In a second embodiment the tongues 20, 21 are not formed with elbows but are simply bent so that their free ends form outwardly directed prongs.
Patent GB-356063-A (GB)
Title: Improvements in or relating to cattle or other animal stalls
IPC: A01K1/08
Filed: 1930-12-18
Abstract: 356,063. Stables. DROST, F., 35, Onsgaardsvej, Hellerup, Denmark. Dec. 18, 1930, No. 38245. [Class 20 (i).] A plurality of yokes in a stable are unlocked successively by a common releasing means. According to one construction a stable having end walls 1, Fig. 1, is divided into a number of stalls by vertical beams 2. Each stall contains a yoke comprising rods 4, 7 hinged together about a pin 6. The upper end of the rod 4 passes freely between two spaced cross-bars 3 and is suspended from one of the bars by a hook. Pins 8 limit the movement of the rod 4. The rod 7 also passes freely between the bars 3 and is adapted to be retained in its locking position by a catch 11 pivoted to a bar 10 extending across all the stalls. A shaft 13 extending across the stalls has a number of cams 14 which co-operate with and are adapted to release the catches 11, the cams being out of phase with each other so that the catches are released successively when the shaft 13 is rotated. The shaft is rotated from the inside by a crank 21 or a wheel 20 and from the outside by a handle 15 or by the handle 18 of a wheel 19 which is connected by a chain 17 to a chain wheel 16 secured to the shaft. The catches may be lifted individually by handles 12. In a modification the cams are replaced by wheels having slots which engage with pins projecting from the catches. In a further modification the shaft 13 is replaced by a displaceable rod 22, Fig. 3. The rod has a number of recesses 23 into each of which projects a pin 24 secured to a catch, the recesses being so shaped that displacement of the rod raises the catches. A pinion 27 meshes with a rack 26 formed on the rod and serves to displace the latter. In a modification the recesses 23 are replaced by cams.
Patent GB-1092463-A (GB)
Title: Lighting systems for road vehicles
Inventor: PARKES ERIC BERNARD
IPC: B60Q1/48
Filed: 1963-09-28
Abstract: 1,092,463. Control systems for road vehicle lighting. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 24, 1964 [Sept. 28, 1963], No. 38302/63. Heading H2H. A lighting system for road vehicles is arranged so that the side and tail lamps 11, 12 on one side or the other of the vehicle are energizable by means of a switch 14 to act as parking lights, a further switch 19, closed when the hand brake is released or when any gear other than reverse is engaged, ensuring that the vehicle cannot be driven with the lamps on one side thereof extinguished. The lighting on the vehicle is normally controlled by the switch 6.