baber/WOPTO huggingface dataset:
Patent GB-849474-A (GB)
Title: Improvements in mono-propellent charge compositions
Inventor: TAYLOR JAMES
IPC: C06B31/30
Filed: 1955-12-12
Abstract: 849,474. Monopropellent compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 2, 1956 [Dec. 12, 1955], No. 35576/55. Class 9(2). A monopropellent composition having the consistency of a putty or thick slurry is prepared by dispersing ammonium nitrate in a viscous solution of an organic thickening agent in a non- explosive organic monopropellent liquid. Suitable liquids are nitric esters of saturated aliphatic monohydric alcohols or derivatives thereof, for example n-propyl and isopropyl nitrates, nbutyl nitrate, 2-methoxy-ethyl nitrate, 2-ethoxyethyl nitrate, nitro-n-propyl nitrate, nitro-nbutyl nitrate, and amyl nitrate mixed with nitron-propyl nitrate. Thickening agents specified are natural resins and gum resins, synthetic resins, pitches, tars, fatty oils, fats and waxes, long chain fatty acids and cellulose ethers; polymers of alkyl and alkoxy-alkyl esters of acrylic or methacrylic acid, polystyrene, and polyvinyl acetate are especially suitable; monomeric esters may be dissolved in the monopropellent liquid and polymerised by heating in the absence of a catalyst. Other oxidising agents which may be included with the ammonium nitrate are sodium and potassium nitrate or persulphate; ammonium dichromate or potassium chromate or dichromate may be added to assist thermal decomposition. In examples the ingredients specified are ammonium nitrate, methyl methacrylate, 2- ethoxy-ethyl methacrylate, 2-methoxy-ethyl nitrate, 2-ethoxy-ethyl nitrate, ammonium dichromate, coal tar, and pitch.
Patent GB-951479-A (GB)
Title: Preparation of tetracyanoethylene
IPC: C07D341/00
Filed: 1961-10-04
Abstract: Tetracyanoethylene is prepared in the form of its anion-radical by reacting a heterocyclic cyanosulphide of the formula C8N4S2 or C8N4 S3, in which the heterocyclic ring contains an <FORM:0951479/C2/1> group, with a cyanide of an alkali or alkaline earth metal in an organic liquid reaction medium which is at least a partial solvent for the reactants. The reaction medium may contain a small proportion of water and in a preferred method of working a solution of the heterocyclic cyanosulphide is allowed to pass through a column packed with an excess quantity of solid cyanide reactant.  The tetracyanoethylene may be obtained from its anion-radical form by oxidation with chlorine or bromine, a quantity of tetracyano-1, 4-dithium being formed as a by-product when oxidation is carried out in situ. Suitable starting materials are tetra-cyano-1, 4-dithiin (prepared by reacting disodium dimercaptomaleonitrile with sulphur monochloride, sulphur dichloride, thionyl chloride, sulphuryl chloride or a mixture of sulphur and chlorine); para-dithiino-[c]-isothiazole-3, 5, 6-tricarbonitrile (prepared by reacting disodium dimercaptomaleonitrile with 1, 2-dichloro-1, 2-dicyanoethylene, tetracyano-1, 4-dithium being formed simultaneously); 4, 5-dicyano-1, 3-dithiole-D 2, a -malononitrile (prepared by reacting 1, 2-dichloro-1, 2-dicyanoethylene with dipotassium or disodium 1, 1-dimercapto-2, 2-dicyanoethylene); and 3-cyano-[1, 3]-dithiolo-[4, 5-c]-isothiazole-D 5,a -malononitrile (possibly 5, 6-dicyano-1, 2, 4-trithiin-D 3, a -malononitrile) (prepared by sulphurization of 4, 5-dicyano-1, 3-dithiole-D  2, a -malononitrile with elemental sulphur in an alkaline medium. Dipotassium 1, 1-dimercapto-2, 2-dicyanoethylene is prepared by adding carbon disulphide to a mixture of malononitrile and alcoholic potassium hydroxide.  Specifications 601,510 and 757,773 are referred to.
Patent GB-1181696-A (GB)
Title: Improvements in or relating to Shelving
Inventor: REITH CHARLES
IPC: A47B96/14
Filed: 1967-08-03
Abstract: 1,181,696. Shelving. C. REITH. 3 Aug., 1967 [5 Aug., 1966], No. 35765/67. Heading A4B. A post for supporting shelf brackets comprises a pair of channels 1, 2 disposed side-by-side, each channel having unequal width flanges 3, 4, the wider flanges 3 being disposed adjacent one another and being interconnected inwardly of their free edges by a strip 5 formed with a series of vertically spaced openings for selective engagement by the brackets. Screw holes 6 facilitate wall mounting and panels 7 may overlie the channels 1, 2. In a modification, Fig. 6, further channels are formed by rearward extensions of the flanges 3, 4 so that brackets may be supported on two opposite sides of the post. An intermediate flange 18 is optionally included. The post of Fig. 1 may seat in a reinforcing channel (9, Fig. 7) secured to the wall. Alternatively, Fig. 10, the post may be slidably engaged in, and supported by, a split tube 19.
Patent GB-820212-A (GB)
Title: Improvements relating to electrical waveguide systems
IPC: H01P5/18
Filed: 1955-12-14
Abstract: 820,212. High-frequency impedance networks. GENERAL ELECTRIC CO. Dec. 14, 1955 [Dec. 14, 1954], No. 35911/55. Class 40 (8). A device for transferring a small part of the energy transmitted by a waveguide to an auxiliary circuit, e.g. for measuring its power or frequency, comprises a transmission line 7, Fig. 1, formed by a conducting strip 8 spaced by dielectric material 12 from a wall of the waveguide 1, and receiving energy through at least one slot 5 in the waveguide wall. The line 7 has a right-angled extension 10 to provide an impedance match when coupled to the coaxial line 9 which connects with the measuring circuit 4. Energy is propagated through the waveguide 1 from a source 2 to a load 3, e.g. an antenna, and the slots 5 are arranged to transfer energy received from the source 2 and direct it towards the circuit 4, whilst directing any energy reflected by the load 3 towards a power absorption device 14. Alternatively the device 14 may be replaced by an arrangement, similar to the extension 10 and line 9, coupled to a circuit for examining the energy reflected from the load 3, and, if desired, for comparing the reflected and transmitted energies to obtain the standing wave ratio of the system. In another embodiment, Fig. 2 (not shown), the line 7 is bent to form an extension 10 which is perpendicular to a wide wall of the waveguide. In a further embodiment, Fig. 3 (not shown), the line 7 is not provided with a right-angled extension, and the line 9 is coupled to the strip 8 through an aperture in a conducting block extending across the waveguide. In an alternative construction, Fig. 4 (not shown), the strip 8 is disposed between two layers of dielectric material secured to a wide wall of the waveguide by an outer conducting sheet and clamping bolts. Fig. 5 illustrates a circular waveguide 25 having two transmission lines secured thereto at circumferentially spaced points. Each transmission line comprises a conducting strip 8 disposed between dielectric sheets 20, 22, and an outer conducting plate 21. Energy is transferred through holes 29, 31 in the waveguide wall and the signals received by the two transmission lines may be compared for determining the polarization of the energy propagated in the waveguide.
Patent GB-400449-A (GB)
Title: Improvements relating to variable centrifugal speed governor control
IPC: G05D13/00
Filed: 1932-12-19
Abstract: 400,449. Speed governors. HEINZMANN, M. J., Koetzschenbroda, Saxony, Germany. Dec. 19, 1932, No. 36023. Convention date, June 6. [Class 57.] A centrifugal governor comprises weights loaded by springs f and movement of the sleeve is transmitted by lever h<3> secured to spindle b to which are attached the ends of spiral springs f<2> .. f<5>, the other ends of the springs being housed in slots in a rotatable box k. For low speeds the box k is rotated in one direction and the springs f<2>, f<3> come into action to oppose the action of the springs f. For high speeds the box is rotated in the reverse direction and the springs f<4>, f<5> come into action successively to assist the springs f. The spindle b is provided with a lever h<4> upon which a lever spring f<1> is pivoted, the other end of the spring being secured to a block u guided in the casing g and also with a roller q engaging a surface x, y, z formed upon the box. This spring is used to adjust the degree of irregularity at low speeds. The engine is stopped by rotating the box k so that a bolt b<3> engages a lever h<1> on the spindle b. In a modification the springs f are not employed and the governor is loaded only by spiral springs arranged in the box k to come into action successively.
Patent GB-837344-A (GB)
Title: Industrial trucks
Inventor: QUAYLE GEORGE F
IPC: B66F9/065
Filed: 1957-11-20
Abstract: 837,344. Lift trucks. YALE & TOWNE MANUFACTURING CO. Nov. 20, 1957, No. 36180/57. Class 78 (3). The lifting carriage 20 of a lift truck is mounted by means of parallelogram links 24, 25 on a movable standard 29 which in turn is mounted on a pair of fixed standards 35 by means of pairs of parallelogram links 36, 39. An hydraulic ram 30 raises the carriage relative to standard 29 whilst this standard is raised relative to standards 35 by a pair of laterally spaced rams 44. The rams are actuated either simultaneously through a metering or proportioning valve, or separately. A ram 45 is provided to tip the fork or other load carrier about its pivot 19.
Patent GB-427876-A (GB)
Title: Improvements in and relating to electric oil blast circuit breakers
IPC: H01H33/98
Filed: 1934-12-19
Abstract: 427,876. Fluid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 19, 1934, No. 36434. Convention date, Dec. 22, 1933. [Class 38 (v)] In a circuit-breaker of the oil-blast explosionchamber type in which an initial pressuregenerating arc is formed between the main fixed contact 1 and an intermediate contact 2, the latter comprises a tubular conducting member and butt contacts connected to the opposite ends of and having portions extending into and secured to, said tubular member. The structure shown comprises an adapter 5 to which is threadedly secured at 8 a steel pot 7 having insulating liners 10, 11, the latter being extended at 11<1> over a flange 9 on the pot 7. An insulating throat bushing 12 is fastened, with an intervening gasket 18, by means of a spacing nut 16 and lock nut 17. An insulating sleeve 19 surrounds, and is secured to, the pot 7 by being supported on an insulating flange 20 secured by a nut 21. Contacts.-The butt contact 1 comprises a renewable cap 26 threaded to a cylindrical guide part 22, which is formed with a shoulder 22<1> engaging a shoulder 23<1> on a bolt 23 having an insulating surround 25. Flexible conductors 28 connect the adapter 5 with the contact 1 to protect the biassing spring 24 from overheating. The intermediate contact 2 is slidable in a hole 15 in an insulating disc 14 supported between the liners 10, 11, and is biassed by a spring 33. It comprises contact parts 30, 31 which are threaded into and secured by pins 32 to, a conducting tube 29 within an insulating sleeve 36. The tubular movable contact 3, with renewable tip 3<1>, is fitted to a bridgemember of conventional type and, in closing, first engages contact 31 and then raises it into contact with the resilient contact 1. When 3 is lowered to open circuit, 1 follows it until stopped by shoulder 22<1>, and then an arc is struck between 26, 30 which drives a stream of oil through holes 14<1> into the arc subsequently formed between 31, 3<1>, and out of the chamber through the hollow contact 3. The gases, which are mainly formed in the pot above the disc 14, escape through a hole 37.
Patent GB-866504-A (GB)
Title: A method for cleaning pipeline milking plants
IPC: B67D1/07
Filed: 1959-10-28
Abstract: 866,504. Cleaning pipes. SEPARATOR A.B. Oct. 28, 1959 [Dec. 12, 1958], No. 36552/59. Class 99(2). The milk pipeline in a milking plant is cleaned by a liquid which is sucked or pumped under pressure intermittently into the milk pipeline from a tank in predetermined quantities which are smaller than the capacity of the pipeline. The tank containing solid bodies which float in the cleaning liquid and are automatically entrained with the liquid and returned therewith to the tank in a circuit. Sucking of the liquid may be done by a vacuum pipe through which the liquid may be passed. The bodies are of elastically deformable material shaped as balls or longish bodies which may be provided with brushes.
Patent GB-416964-A (GB)
Title: Improvements in or relating to piston compressors having rotary valve gear
IPC: F04B39/08
Filed: 1933-12-29
Abstract: 416,964. Valves. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Dec. 29, 1933, No. 36609. Convention date, Feb. 9. [Class 7 (vi).] A double-acting compressor for supplying an air charge is provided with rotary inlet and outlet valves 7, 8 having at least two ports 13, 15 leading respectively to the working chambers of two double-acting pistons 5. The valves are driven through a worm shaft 10. They may be slotted throughout their length at opposite points, and control ports at 90‹. The ports may alternatively be disposed so that the gas pressures on the valves are balanced. The valves may have closed or open ends, and the inlet and delivery passages 12, 16 may be disposed in the middle of the valves.
Patent GB-1424903-A (GB)
Title: Fluid valves
IPC: F16K37/00
Filed: 1973-08-02
Abstract: 1424903 Valves HENRY BALFOUR & GO Ltd 22 July 1974 [2 Aug 1973] 36744/73 Heading F2V A gate valve is provided with a seat 8 having an annular channel 25 which is sealed from the main valve passageway when the valve closure member moves to the closed position, which channel is connected to a high-pressure air source and a pressure switch such that when the valve is closed, the pressure of the air is sufficient to operate the switch which in turn actuates a light and/or an audible indicator. The valve member is connected via a lever 16 to a pneumatically operated piston-rod 13 such that in moving from an open to a closed position the member first moves horizontally (as shown in Fig. 1) and then vertically to effect a complete sealing with the valve seat.
Patent GB-897834-A (GB)
Title: Arrangement for mechanizing the assembling of trains in a train-assembling track of a marshalling yard
IPC: B61J3/08
Filed: 1960-10-26
Abstract: 897,834. Propelling rail vehicles. GARBERS, E. Oct. 26, 1960 [April 27, 1960; May 11, 1960], No. 36751/60. Class 104 (2). In an arrangement for assembling trains in a train assembling track of a marshalling yard a plurality of trolleys 4<SP>1</SP> to 4<SP>20</SP> distributed over a corresponding number of sections of the track are each arranged to be coupled to the pulling run 9<SP>1</SP> of an endless rope for propelling a vehicle along a respective section of the track and a transverse stop 10, at the end of each section effects the uncoupling of the trolley of the respective section from a pulling run 9<SP>1</SP> and the coupling of the trolley to the return run 9<SP>2 </SP>of the endless rope to return the trolley to its initial position, the trolley following the respective trolley being coupled to the pulling run 9<SP>1</SP> to propel a car along the next section of the track. The trolleys 41 to 4<SP>20</SP> are mounted on wheels 15 running on the lower flanges of and between a rail 2 of the main track and an auxiliary rail 3. The apparatus operates as follows. A car travelling on rails 1, 2 on entering the train assembly track actuates a switch 11 to cause a motor 8 to drive an endless cable 9<SP>1</SP>, 9<SP>2</SP>. Further forward movement of the car closes a switch 5<SP>1</SP>, if the car enters the first track section, to energize a magnet 7<SP>1</SP> which depresses a lever 29, Fig. 4, which lever 29 in turn pivots an arm 12 on the trolley 4<SP>1</SP> to disengage a lockpawl 20 from a hook 21 provided on a pivotallymounted lever 19. The lever 19, on being freed, is now pivoted by a spring 23 into a position in which a roller 24 mounted thereon engages a wheel 25 of a car to propel such car along the tracks 1, 2. The lever 12 on being moved by the lever 29 also moves, through the intermediary of a cam 26, a control-rod 30 which rod 30 by means of a pin 31 rotates an eccentric 32 to press a wedge 33 against the pulling rope 91 thus causing the trolley and hence the car to be propelled forwards. The control-rod 30, on reaching the end of the section, abuts the transverse stop 10 and is moved rearwardly to rotate, through pins 31, 34, eccentrics 32, 35. The eccentric 32 on being rotated permits the wedge 33 to release the pulling rope 91 and the eccentric 35 presses a wedge 36 against the return run 9<SP>2</SP> thus returning the trolley to its initial position. The lever 19 is returned and locked in its inoperative position either through the acceleration due to the trolley being returned to its initial position or to the lever being depressed by the wheel of a car. A counting mechanism actuated at each section by stops 61 to 6<SP>21</SP> is provided to ensure that cars are not propelled into a section of the track already occupied. In an alternative arrangement, Fig. 6 (not shown), two endless cables are provided, one cable for moving the trolley forwardly and the other for moving the trolley rearwardly, preferably at a greater speed than the forward speed.
Patent GB-1519027-A (GB)
Title: Sliding door assembly for a vehicle
IPC: E05D15/10
Filed: 1975-09-08
Abstract: 1519027 Sliding doors for vehicles LUNKE & SOHN GmbH 8 Sept 1975 [11 Sept 1974] 36819/75 Heading E1J In a sliding door assembly including a door 3 slidable longitudinally of a guide head 5 and an arm 8 pivoted to the head 5 and to the vehicle body about axes 6, 7, a device latches the door against sliding during its pivoting movement and against pivoting during sliding movement. As shown in Fig. 2 a rod 9 is pivoted to the vehicle body and to the guide head 5 about axes 10, 12 which latter axis is common to the pivot axis of a two-armed lever 17, 18 pivoted on the guide head 5. During movement of the door from the fully closed to an intermediate position displaced laterally from the door opening a concave surface 21 of arm 18 rides over a cam segment 14 to rest on surface 23 of pivot arm 8 under bias of spring 29. Toe 26 of arm 17 is thus pivoted out of engagement with lug 28 welded to the door to allow rearward sliding thereof. On forward sliding of the door a cam surface 16 of lug 28 deflects toe 26 into engagement with lug 28 when the intermediate position is reached. End 22 is simultaneously pivoted away from abutment 20 so that the door is free to swing about axes 6, 7 for closing.
Patent GB-751220-A (GB)
Title: Improvements in or relating to compound-wound synchronous generator sets
IPC: H02P9/00
Filed: 1954-12-20
Abstract: 751,220. Alternators. GENERATOR HOLDING ESTABLISHMENT. Dec. 20, 1954 [April 24, 1954], No. 36846/54. Class 35. A rotary field alternator G has a shunt exciter E compounded for load current by means of a further field winding b fed wth a current depending on the magnitude and phase of the load current through a rotary converter U, F, all machines being on the same shaft. The converter may be a single machine, but as shown, comprises two separate machines with their rotors interconnected. Machine U is a frequency converter excited with phasereversal by windings carrying the load current so that a double rotor frequency is produced, and machine F is a converter of twice the polenumber so that a stationary field is produced, and current may be picked up from its brushes and fed to the compounding field winding b.
Patent GB-370617-A (GB)
Abstract: 370,617. Electrically-igniting wick lamps. ASPREY &, CO., Ltd. and ASPREY K. M. F., 165, New Bond Street, London. March 17, 1931, Nos. 8227 and 10293. [Class 75 (iii).] A wick lamp for smokers' use is removably mounted in the upper end of a stand 10 so as to electrically connect an igniting filament 46 with a battery 12 and is provided with a pressbutton 36 adapted to release the spring-hinged lid 34 and move the filament into an operative position adjacent the wick 32. As shown, the filament 46 is carried by two L-shaped conducting members 48, connected by an insulating member 47 and mounted in slots in arms 42, 43, secured to an insulating plug 41 pivotally mounted at 50 on a rod, bent over at one end to make contact with the upper portion 24 of the lamp casing. The pushbutton 36 is provided on a sliding frame 35, having an aperture 38 for engaging the catch 39 of the lid 34 and a projection 53 adapted to engage the plug 41 and thereby swing the filament through an aperture 54 exposed by the inward movement of the frame against the action of a spring 52. The circuit is closed by the arm 42 contacting with a pin 56 extending radially from the wick tube 33. The latter is connected through the lower part 22 of the lamp casing and spring contacts 23, 15 with one pole 16 of the battery, the casing of the latter being connected by wires 17, 18, and a ring 19 with the upper part 24 of the lamp-casing, the parts 22, 24 being separated by an insulating layer 25. The wick 32 extends into absorbent material 30 fed by a wick 29 from a removable reservoir 26. A rigid or resiliently mounted extinguishing device may be provided within the lid. The first Provisional Specification comprises also constructions in which the filament is given a simple sliding movement or is connected to electrodes pivoted to the frame so as to move under the action of a cam when the frame is operated. The second Provisional Specification describes also a construction in which the filament is carried by two pivoted levers having V-shaped notches engaging pins on the slidable frame, an extinguishing cap is provided on an arm pivotally and resiliently mounted adjacent the mounting of the cap so as to move into the closed position in advance of the cap, and one or more insulated studs on the lamp are adapted to engage corresponding contacts in the stand.
Patent GB-915949-A (GB)
Title: Improvements to fire extinguishers
IPC: A62C13/76
Filed: 1960-10-28
Abstract: 915,949. Fire extinguishers. MORRIS, C. Sept. 29, 1961 [Oct. 28, 1960], No. 37094/60. Class 47. In a fire extinguisher operated by squeezing together two handles d, d<SP>1</SP>, the latter are constructed so that a nozzle b<SP>2</SP> can be held between them, handle d<SP>1</SP> having a slot d<SP>3</SP> extending inwards from the free end of the handle to allow the nozzle to be slipped into the space between the two handles. As shown, the handles are of channel shape and have a pin d<SP>6</SP> passing through the sides thereof to prevent the nozzle from being accidently withdrawn. A lining or pad d<SP>2</SP>, e.g. of rubber, acts as a seal for the nozzle. A pressure indicator D is provided.
Patent GB-1442729-A (GB)
Title: Treatment of blast furnace slag
IPC: C21B3/08
Filed: 1974-08-23
Abstract: 1442729 Treating blast furnace slag NIPPON STEEL CORP and HAMADA HEAVY INDUSTRIES CO Ltd 23 Aug 1974 [27 Aug 1973] 37135/74 Heading C1K Slag discharged from a blast furnace is cooled and solidified with an aqueous solution containing ferrous sulphate and/or ferrous chloride in a total amount of not less than 0À003 wt. per cent. The solution may also contain waste acid from a sulphuric acid or hydrochloric acid pickling process for steel.
Patent GB-619643-A (GB)
Title: Improvements in annealing trays
IPC: C21D9/00
Filed: 1946-12-18
Abstract: 619,643. Annealing-trays. MENOUGH, P. S. Dec. 18, 1946, No. 37224. [Class 72] An annealing-tray comprises load-bearing rods and web rods extending loosely through a plurality of vertical link plates in spaced relationship and being disposed intermediate and parallel to the loadbearing rods. As shown the link plates 11 have apertures at the corners through which pass the load-bearing rods 10, a central aperture for the web rods 14 and lugs 15 to maintain the spaced relationship of the links on the load-bearing rods. The web rods are held loosely in position by notches which interlock with the edges of the apertures and all the parts of the tray are free to expand. A series of trays may be connected by plates, Fig. 14 (not shown), or relatively rigid side pieces may be loosely connected to rigid end pieces carrying crane hooks, Fig. 17 (not shown). A basket may be formed having base and sides built up in the above manner with insulated bracing bars for strengthening the corners, Fig. 27 (not shown).