baber/WOPTO huggingface dataset:
Patent GB-1348502-A (GB)
Title: Electrically driven tractor
IPC: H02P7/298
Filed: 1971-04-19
Abstract: 1348502 Control of DC motors GENERAL ELECTRIC CO 19 April 1971 [12 Feb 1970 27 March 1970] 21522/71 Heading H2J [Also in Division H1] A tractor is driven by a D.C. motor 22 which is started by a relay L, itself actuated by an S.C.R. circuit in which the S.C.R. and an associated trigger control network 67 are connectable alternately to the batteries 21 and the trigger control network producing a triggering potential which decays after the network is removed from the source. To start the motor the key operated switch 39 is closed, the operator sits on the hinged seat to close the switch 33, and releases the brake to close switch 35. Next the switch" T- start " is moved to contact 65 to charge the starting circuit 67 then moved to contact 61 when current flowing through the S.C.R. 63 energizes the relay L which closes contacts L-C. To accelerate, the lever 25 (Fig. 4) is moved and causes the plastics cam wheel 133 to rotate thus switching the various switches attached to support 134. Closing accelerating switches T-1A and T-2A energizes relays 1A, 2A and closes contacts 1AC and 2AC thus shorting resistors R1 and R2. Further movement of lever 25 closes switches T-FW1 to T-FW4 to weaken the field of winding 54. Shunts 106, 107 are provided to allow the relay to discharge safely when the current is removed. When a reversing switch "T-REV" is closed the relay REV is energized and reverses the polarity of the field windings by opening contacts REV-C1 and REV-C2 and closing contacts REV-C3 and REV-C4. The tractor may be accelerated in reverse by shorting out resistors R1 and R2 as before. A power take-off socket 42 is provided and is switched on in a similar way to the tractor starting circuit.
Patent GB-791011-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: DENNIS WILLIAM ERIC
IPC: G21C3/36
Filed: 1955-07-27
Abstract: 791,011. Nuclear reactors. GENERAL ELECTRIC CO., Ltd. July 26, 1956 [July 27, 1955], No. 21751/55. Class 39(4). A fuel element arrangement for a nuclear reactor comprises one or more fuel elements housed within a tubular member, the fuel element or elements and the tubular member forming together a replaceable unit. In Fig. 1, a hollow tubular fuel element 4 of uranium is encased by a stainless steel sheath 5 and supported within a graphite cylinder 6 by end caps 7 and 8 which are also of graphite. The end caps engage'in a stepped portion of the cylinder 6 and in the space between the projecting ends of the inner and outer tubes of the sheath 5; they are provided with three radially projecting lugs 14, which engage the wall of the channel in the reactor, and with apertures 16, 18 for the passage of cooling gas, (see also Fig. 2, which shows a plan view). In a modification, Fig. 4, each end cap comprises a spider 22, e.g. of beryllium, which fits into a graphite ring 20. In a further modification, Fig. 6 (not shown), the tubular fuel element is replaced by a rod fuel element provided with circumferential cooling fins. In another arrangement, Figs. 8 and 9, each cylinder 6 contains three flat fuel elements 26 provided with cooling fins. The elements engage in slots in the cylinder, and as shown in Fig. 9, the elements are disposed at equal angles to one another so as to provide good transverse mixing of the cooling gas as it passes over the elements. Each element is provided with a spacing button 32 at each end to space the elements apart slightly and prevent the occurrence of hot spots. The fins of the outer fuel elements rest against the end spacing members. In a further arrangement, Fig. 10, the fuel element 24 is supported within the cylinder 6 by top and bottom spiders of amorphous carbon. The lower spider comprises three detachable arms 35 which fit into slots 36 in the cylinder and at their other ends lock into a boss 37. A spigot 38 on the end of the fuel element passes through an orifice in the boss, and a disc 39 secured to the spigot attaches the boss to the element and locks the arms 35 in the boss. A similar disc 40 retains in position the upper spider 33 which is a one-piece pressing and the arms of which are placed in open slots in the cylinder so that the element 24 is free to expand vertically. The cylinder is provided with radially projecting lugs 44 to space it within the reactor channel and is made conical so that the upper end of one cylinder is located in the socket-shaped lower end of the cylinder immediately above it. A thermocouple 46 may be provided to measure the temperature of the uranium. The leads for the thermocouple may be clamped in an arm attached to the disc 40.
Patent GB-571383-A (GB)
Title: Improvements in or relating to solid lubricants for use in metal-drawing and cold-rolling operations
IPC: C08J5/12
Filed: 1943-12-28
Abstract: 571,383. Lubricants. EVANS, E. A., HITCHCOCK, N. E. F., and WAKEFIELD & CO., Ltd., C. C. Dec. 28, 1943, No. 21762. [Class 91] [Also in Group XXII] Calcium oleate, or a mixture containing it, having a melting point above 100‹ C., is used in the anhydrous state, substantially free from oleic acid, as a solid lubricant for use in wire drawing, the deep drawing of sheet metal, cold rolling and like operations. Specification 512,904 is referred to.
Patent GB-270146-A (GB)
Title: Windlass
IPC: B66D1/34
Filed: 1926-09-03
Abstract: 270,146. Beebe, R. H. Sept. 3, 1926. Hand-driving mechanism.-The winding drum 15 is driven directly by inserting a pinion 22 having an attached crank arm 25 in a toothed cavity 31 formed at one end of the drum, is driven through a single gear reduction by inserting the pinion 22 in a toothed cavity 28 provided in a gear 21 formed integral with a pinion 17 which meshes with an internal gear 16 formed at the opposite end of the drum, and through a double gear reduction by inserting the stub shaft 23 of the pinion 22 in a bearing in the frame 10 formed at such a position that the pinion meshes with the gear 21. A set screw 27 secures the crank arm 25 in any position in a slot formed in the pinion 22.
Patent GB-396933-A (GB)
Title: Improvements in or relating to processes of solubilizing metal values in oxidized ores containing iron
IPC: C22B1/08
Filed: 1932-08-03
Abstract: Oxidized ores containing iron are treated to provide "active" ferrous or ferroso-ferric oxide therein, contacted dry with a chlorinating gas such as chlorine, hydrochloric acid, or ferric chloride to form ferrous chloride, and the latter then decomposed, as by chlorine, air, or water vapour, to cause chloridization of other metals present and give a loose permeable product adapted for ready leaching.  The chlorinating gas may be replaced by sulphur trioxide with the production of sulphates.  The "active" ferrous &c. oxide may be obtained by heating the ore, say to 400-700 DEG  C., in the presence of a solid or gaseous carbonaceous combustible reducing agent and cooling the ore under non-oxidizing conditions.  Alternatively the "active" oxide may be separately prepared and be mixed with the ore to be treated. Chlorination of the "active" oxide is preferably effected at 150-300 DEG  C., though temperatures up to 750 DEG  C. may sometimes be used, and the heat of reaction may suffice to realize and maintain the necessary temperature.  In treating ores containing refractory sulphides such as nickel sulphide, any ferrous sulphate formed during the process from residual sulphide is converted to chloride by adding a small amount of an alkali or alkaline-earth metal chloride.  Waste gases from the chlorination step may be stripped of any ferric chloride by passage under non-oxidizing conditions through dry ore containing "active" oxide. In one group of examples a copper sulphide ore is roasted and then reduced to provide "active" oxide, and thereafter chlorinated; at 225 DEG  C. treatment with chlorine or chlorine admixed with air or dry steam gives cupric chloride; at 175 DEG  C. some cuprous chloride is formed; whilst at 310 DEG  C. considerable formation of cuprous chloride occurs and a sticky unworkable mass results.  Treatment of a refractory copper-nickel sulphide ore by roasting and reduction, followed by treatment at 225 DEG  C. with chlorine or equal volumes of chlorine and air converts copper and nickel to chlorides.  In a further group of examples dealing with copper and nickel ores ferrous chloride is first formed by chlorination at 200-300 DEG  C. under non-oxidizing conditions and its decomposition with formation of other metallic chlorides effected as a separate step, as by roasting at 300 DEG  C. with a restricted air supply.  In such case the chlorinating gas may include a reducing gas, or chlorination be followed by reduction and the chlorination be repeated, temperatures of 300-500 DEG  C. being employed.  In a further example, a prepared ore containing gold, silver, cobalt, and copper is treated with chlorine at 225 DEG  C. to form chlorides of all the metals referred to, but considerable soluble iron remains.  The process may be carried out in rotary kilns and may be applied to the purification of iron ores to obtain ferric oxide and to remove therefrom small amounts of impurities such as phosphorus.
Patent GB-1155129-A (GB)
Title: Improvements in or relating to Fluid Braking Systems
IPC: B60T11/34
Filed: 1967-05-11
Abstract: 1,155,129. Braking regulator. ALFRED TEVES G.m.b.H. 11 May, 1967 [13 Sept., 1966], No. 218691/67. Heading F2F. In an hydraulic brake force regulator, a cylinder 1 having a fluid inlet 8 and an outlet 9 to the brake cylinders, contains a stepped piston 29 which has a conical portion 28 arranged to engage, and to form a seal with, a sealing ring 12 when pressure difference between inlet 8 and outlet 9 falls sufficiently, the piston having a small diameter end 13a, 13b bearing against a spring 6 adjustable in pressure at 7, and having a passage 19 therethrough containing a non- return ball valve comprising a ball 21 and seating 22. Increase in applied pressure at the inlet 8 is transmitted via the annular gap between the conical section 28 and the sealing ring 12, to the outlet 9. As the outlet pressure in chamber 27 rises, its action on the larger diameter end of the piston overcomes the spring 6 and moves the piston to the right to decrease the annular gap, and eventually to close it. Upon reduction of the inlet pressure 8 the piston moves further to the right and return of fluid from the brake cylinders must then occur through the ball valve 21 which acts as a throttle to limit the speed of flow.
Patent GB-198938-A (GB)
Title: Detachable stands applicable to gas stoves or the like
IPC: F24C15/12
Filed: 1922-08-11
Abstract: 198,938. Morton, A. Aug. 11, 1922. Supports for articles to be heated.--A detachable stand 1 of the kind which may be applied to gas or like stoves so as to project from the side of the stove, is formed with an offset or depressed end 3, which is engaged between the top 4 of the stove and the ends of the bars 5. The offset portion may be of the angular form shown to fit a corner of the stove top. An upturned rim 7 retains articles on the stand. In another form, the stand is provided with a hooked end which engages the edge of the hot-plate and is clamped to it by a thumb-screw.
Patent GB-222467-A (GB)
Title: Improvements in and relating to multi-stage steam turbine plants
IPC: F01K3/24
Filed: 1924-09-16
Abstract: 222,467. Erste Br³nner Maschinen- Fabriks-Gres. Sept. 24, 1923, [Convention date]. Compound &c. engines.-In multi-stage motor power plant comprising more particularly steam turbines h, m, n, there is provided for the higher pressure stages h an auxiliary condenser c<1> which can be connected and disconnected according to whether it is desired to work this section in series with the other sections m, n or independently. Valves r, s, t, u are provided together with a main condenser c<2> and steam generators k<1>, k<2> for the supply of steam at different pressures to the different sections, which may thus work singly or together.
Patent GB-169341-A (GB)
Title: A machine for use in fitting together boxes of the slide and shell type
IPC: B65B19/02
Filed: 1920-07-21
Abstract: 169,341. Molins, W. E. July 21, 1920. Pile tables and supports for sheet feeds; separators. - Relates to a machine for folding box slide blanks, filling them if required with cigarettes, and inserting the folded (and filled) slides into shells which are fed from a magazine in collapsed form and opened or set up by the machine. Slide blanks 2, Figs. 1 and 4 are removed from the bottom of a magazine by a pusher tooth 12 on a reciprocating table 7, and fed by rollers 13 to plates 14 which bend up the long edges. The table is reciprocated by an eccentric and connecting rod driven from the spindle of one of the rollers 13, and is supported on rollers; a spring holds the table pressed on the rollers. The folded shells are stored in a magazine 27, and are fed towards the conveyer by similar means to that employed for feeding the slides.
Patent GB-758827-A (GB)
Title: New sulphur containing compounds
Inventor: STEVENSON HERBERT AUBREY
IPC: C07D239/38
Filed: 1953-08-07
Abstract: The invention comprises benzyl-thio-pyrimidines in which the phenyl radical may contain halogen substituents, and a process for making them by the action of a pyrimidine thiol optionally containing alkyl groups at positions 4, 5 or 6, with a benzyl halide which may contain one or more halogen substituents. Examples describe the preparation by this method of 2:41 - chlorobenzylthio - 4:6-dimethylpyrimidine, 2 - benzylthio - 4:6-dimethylpyrimidine, and compositions of both with Insem 108 (a non-ionic emulsifying agent) and benzene, to give stable emulsions for acaricidal use.ALSO:Acaricidal compositions comprise pyrimidine compounds of the formula: <FORM:0758827/VI/1> in which the pyrimidine radical X may carry alkyl groups at any of positions 4, 5 and 6, and the phenyl radical Y may have one or more halogen atoms, (see Group IV(b)) with dispersing or suspending agents emulsifying agents or solvents, to form dusts, dispersions &c. for horticultural purposes.  A composition of 2 : 41-chloro-benzylthio-4 : 6-dimethyl-pyrimidine with Insem 108 and benzene gives an emulsion for diluting.  Another similar composition is described and paraffin oil xylene and other p  aromatic solvents and powders are referred to as additives.
Patent GB-463625-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03K4/16
Filed: 1935-08-02
Abstract: 463,625. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. Aug. 2, 1935, No. 21974. [Class 40 (v)] An oscillation generator of the " blocking oscillator type " utilizes a screen grid valve having its anodecathode circuit back coupled to one of its grid circuits, synchronizing impulses being applied to the other grid. A screen grid valve 1 is provided with reaction 12, 6 so as to make it oscillate and a condenser 7 is arranged in the control grid circuit so as to become rapidly charged during these oscillations and block the valve 1. The condenser charge leaks away over a variable resistance 9 in a mains circuit 8, 10. Output of. triangular wave form is taken at terminals 17 across the condenser 7. The screen grid 4 is connected to the supply source 13 and synchronizing impulses are applied to it from a terminal 16 through a coupling condenser 15. Square topped waves appear in the screen grid circuit of the valve and may be utilized to suppress the cathoderay beam during the " fly-back " period in a cathode ray tube television system.
Patent GB-239705-A (GB)
Title: Improvements in cooling arrangements for use with dynamo electric machines
IPC: H02K9/10
Filed: 1924-09-17
Abstract: 239,705. English Electric Co., Ltd., and Briggs, E. R. Sept. 17, 1924. Dynamos and motors, cooling.-An air-cooler 5 is arranged immediately beneath the machine so that its inlet 7 is adapted to register with the outlet 2 of the machine, and is retained in position by lifting and lowering-apparatus. This apparatus may comprise screw-jacks 17, 18, the cooling being fitted with wheels 16 by which it can be run out on rails 15 when lowered, or lifting and lowering levers 25, Fig. 3, may be pivoted at 27 to the cooler so as to be operable by screws 29, the wheels 16 being fitted on the levers and remaining in contact with the rails. The cooled air emerges into the chamber beneath the machine and is passed back through the end covers 3 into the machine.
Patent GB-717391-A (GB)
Title: Improvements in and relating to plants for the production of hot compressed air
IPC: F02C6/10
Filed: 1952-09-03
Abstract: 717,391. Gas turbine plant; axial flow compressors. AKT.-GES., BROWN, BOVERI & CIE. Sept. 3, 1952 [Sept. 6, 1951], No. 22154/52. Classes 110(1) and 110(3) In a gas turbine plant comprising a compressor feeding preheated air to a combustion chamber supplying a gas turbine driving the compressor in which the air is preheated by the turbine exhaust gases in a heat exchanger, hot air is bled from the circuit after the heat exchanger and passed through a turbine on the gas turbine-compressor shaft having means for varying its intake capacity before being used in a hot air consumer. Air compressed in the compressor 1 is heated in. an exhaust gas heat exchanger 2 and then divided. Part flows through a combustion chamber 3 to a turbine 4 which drives the compressor 1 and then flows through the heat exchanger 2. The remainder passes through a turbine 5 and a pipe 9 to a hot air consumer. The turbine 5 has adjustable guide vanes or, as shown, groups of nozzle valves 6. To prevent surging of the compressor 1 on reduction of demand for hot air, a valve 8 is provided to allow some of the hot air to enter the turbine 4. A controller 10 controls the valves 6, 8 and the fuel control valve 11 according to the pressure or quantity of air in the pipe 9.
Patent GB-583635-A (GB)
Title: Improvements in or relating to electric switches with contact-spring pile-ups
IPC: H01H1/28
Filed: 1944-11-10
Abstract: 583,635. Tumbler switches; retractive switches. ERICSSON TELEPHONES, Ltd., ANSON, B. 0., and DAVIS, J. H. Nov. 10, 1944, No. 22160. [Class 38 (v)] In a switch, such as a telephone operator's switch, a lever 2 makes camming engagement with springs 6, 10, which are mechanically coupled with lost motion to springs 8, 12, and the tendency of the latter springs to adhere to or follow the former, and so break contact, if the lever 2 overshoots its central position, partially operating a spring 6 or 10, is prevented by providing spacing projections. Each of the springs 8, 12 may thus be separated from its adjacent spring 6, 10 by a transverse ridge 21, 22, a rivet head or distance piece, a turnedover tip, or by the projection of the contact to the rear of the spring. A ball 20, biassed by a spring 17, engages a recess in the cam 3 when the lever 2 is in the central position. The lever 2 may automatically return to its central position when released, or it may be retained set in an outer position. The Provisional Specification refers also to the springs being spaced apart by a set in one spring.
Patent GB-500573-A (GB)
Title: Device for the ventilation of closed (motor) vehicles
IPC: B60H1/26
Filed: 1937-08-12
Abstract: 500,573. Ventilating vehicles. PERCIVAL , S. (Evans Products Co.) Aug. 12, 1937, No. 22201. [Class 137] A ventilating unit, which may be attached to the roof 176 of an existing vehicle 175, comprises a hood member 179 divided by a partition 186 into a chamber 187 to which air is supplied through a forwardly directed inlet 183, and into a chamber 188 from which air is extracted through a slot 184. The air entering chamber 187 passes through an opening 178 controlled by a flap 201 into the interior from which the foul air is drawn through an opening 197 controlled by a flap 202. The openings 178 and 197 are separated by a partition 198. Sieves 193, 194 prevent entry of water, and a deflecting surface 92 catches moisture entering with the air through the opening 183.
Patent GB-689116-A (GB)
Title: Drive for hoisting gear
IPC: B66D3/22
Filed: 1950-09-08
Abstract: 689,116. Slip couplings. DEMAG-ZUG GES. Sept. 8, 1950 [Oct. 1, 1948], No. 22231/50. Class 80 (ii). Acceleration-controlled slip in a friction coupling 13, 14, for an electrically-driven hoist, is provided by the inertia-lag of a freely-mounted flywheel 23, connected by a spring-loaded camcoupling 22, 24 and pins 20 to a member 18 which is fast on the output shaft 19 and is drivingly connected by pocketed clutch-engaging springs 16 to a freely-mounted clutch-cone 14 frictionally engaging a complementary cone 13 connected to the input shaft 10 by a toothed coupling 11. Excessive input acceleration causes the flywheel 23 to lag, relatively turning the cam members 22, 24 to force them axially apart and act axially through levers 25 and ties 26 to reduce the clutch-pressure and permit slip. The flywheel 23 may be integral with the cammember 24 or, as shown, frictionally connected thereto through a friction facing 29. The device is mounted in a casing for flanged attachment to a driving electric motor and driven hoist.
Patent GB-1373697-A (GB)
Title: Totalizators
IPC: G06Q50/00
Filed: 1973-06-22
Abstract: 1373697 Totalizators BELL PUNCH CO Ltd 22 June 1973 [12 May 1972] 22312/72 Heading G4A In a totalizator system, in response to a ticket 1 (Fig. 3) on which data relating to a bet is recorded (e.g. by punching) being fed to a card reader 21, or in response to such data being entered on a keyboard 26a, signals representing the data are fed via logic circuitry 22 to both the ticket issuing machine and a computer 27, the latter signalling a unique number to be associated with the bet to the ticket issuing machine, this number being printed and recorded in coded form on a receipt ticket. When a receipt ticket is subsequently presented, either the coded version of the unique number on the ticket is sensed or this number is keyed in and fed to the computer where a check is made against the number corresponding to a winning bet in which case a winning ticket is produced to permit paying out, further payment on this number being prevented. The amount to be paid is displayed on number tubes 23a and printed on the ticket. If incorrect data is originally entered an error device 23 is actuated and a receipt ticket bearing for example a question mark is issued. The computer is linked to a plurality of ticket issuing machines.
Patent GB-666443-A (GB)
Title: Printing members
IPC: B41M5/132
Filed: 1949-08-29
Abstract: 666,443. Printing-surfaces. NATIONAL CASH REGISTER CO. Aug. 29, 1949 [Oct. 21, 1948], No. 22382/49. Drawings to Specification. Classes 100 (ii) and 100 (iv). [Also in Group VIII] A printing member comprises a porous body in the capillary pores of which are held a colour reactant substance which is itself colourless but which produces a distinctive colour when brought into contact with a co-reactant substance coated on or absorbed in the record medium with which the printing member co-operates, the colour reactant substance being released from the pores by the blow of a typing member or the like. Lactone such as Crystal Violet Lactone, Malachite Green Lactone and 3.3-bis-(p-diethylaminophenyl)-6-dimethylamino phthalide or similar para-methyl or p-ethyl aminophenyl compounds are specified as compounds which react with clays e.g. kaolin, pyrophillite talc, bentonite, Halloysite, CaSO 4 , Mg trisilicate, ZnS and CaF, to give distinctive marks. Zeolitic Na-Al silicates in which the base exchange Na cations are replaced by cations of Ni, Cu, Fe, Zn, Hg, Pb, Ba, Ca, or K may also be used. The printing member may be hard or resilient and may be made of rubber, thermoplastic or thermosetting synthetic resin or synthetic rubber e.g. paper web is impregnated on a paper coating machine with a dispersion comprising 1 pt cooked starch, and 4 pts of a mixture comprising 1 pt attapulgite in 3 pts water. Porous metal may be used as the printing member and is impregnated with 3 per cent by weight of Crystal Violet Lactone dissolved in 97 per cent chlorinated diphenyl of about 48 per cent Cl content. If a rubber printing member is used the chlorinated diphenyl is replaced by hydrogenated methyl abietate. Specifications 531,548, 582,475, 666,437 and 666,438 are referred to.