baber/WOPTO huggingface dataset:
Patent GB-722280-A (GB)
Title: Improvements in or relating to tubulous vapour generators
Inventor: EVANS RICHARD HENRY
IPC: F22B35/00
Filed: 1952-03-06
Abstract: 722,280. Pulverulent-fuel cyclone furnaces. BABCOCK & WILCOX, Ltd. March 6, 1953, [March 6, 1952]. No. 5877/52. Class 51 (1). [Also in Group XIII] A steam-generator furnace includes a cyclone furnace 1 fired by pulverulent fuel and delivering into a vortex chamber 25 in which cooled combustion products are mixed with the gases issuing from the cyclone chamber, the resultant mixture then passing over heat-exchange surfaces at a temperature below that at which deposition of material in a sticky condition is liable to occur. The mass flow rate of the recirculated gases is at least 70 per cent of the mass flow rate of the hot gases leaving the cyclone furnace. The combustion gases, after passing over convection surfaces, are drawn through a duct 110 by a fan 111 and delivered through duct 112 to inlets 120 spaced around the vortex chamber 25. As shown in Fig. 6, combustion products pass through a duct 154 to a heat exchanger 92 and are then partly withdrawn by fan 111 and recirculated. Air is drawn into a compressor 100, and passes through the heat exchanger 92 to a turbine 152 from which it is delivered to the cyclone furnace; the turbine 152 drives compressor 100 and fan 111. Specification 552,747 is referred to.
Patent GB-667485-A (GB)
Title: Metal spraying gun
IPC: B05B7/16
Filed: 1950-03-09
Abstract: 667,485. Spray-producers. ANDREN, B., (trading as ANDREN & SONER, H.). March 9, 1950 [March 14, 1949), No. 5958/50. Class 69 (iii). A metal-spraying apparatus, e.g. for tin or lead, comprises a casing 1 formed with a handle 2 and having placed on its upper side a container 10 for the metal which is surrounded by an electric heating element 12 and an air coil 14 leading to an opening 15 immediately beneath an outlet from a valve casing 11 found at the front of the container 10. Compressed air is supplied via a pipe 8, ball valve 5, channels 3 and 4 to the coil 14 where it is heated by the element 12 and is delivered to the opening 15. Metal is supplied via an inlet 13 to the container 10 where it is kept molten and drawn by the air blast up an inclined channel 25 to the valve casing 11. A trigger 18 operates the ball valve 5 and a needle valve 24 in the casing 11. A curved plate 16 and flat' baffle plates 17 protect the handle 2 from the heat generated in the element 12.
Patent GB-590586-A (GB)
Title: Improvements in hydraulic power transmission means
IPC: F15B7/08
Filed: 1945-03-12
Abstract: 590,586. Hydraulic machines. FARRIS, V. W. March 12, 1945, No. 6127. [Class 69 (ii)] In a system comprising a transmitter 10 and receiver 11, the former comprises pressure and reservoir chambers 67, 68 separated by a diaphragm 16, loaded by a spring 35 balancing the pressure in the chamber 67, and reciprocated by an internally threaded member 22 engaging a screw 23 rotated by the operating handle, said reservoir and pressure chambers being connected by a valve controlled passage 19 to compensate for expansion or make up leakage of liquid. A diaphragm 53 in the receiver is loaded by a spring 61 equal to the spring 35. Rotation of the handle 31 normally turns member 23 to move the diaphragm 16 and transmit motion to the receiver. Movement of the handle from the starting position in a direction to screw members 22 and 23 together, however, brings valve 41 into contact with an adjustable abutment 45 to open the connection 19 between the reservoir and pressure chambers.
Patent GB-1263403-A (GB)
Title: Carriage lock for radial arm saw
IPC: B27B5/20
Filed: 1970-02-09
Abstract: 1,263,403. Radial arm saw. BLACK & DECKER MFG. CO. 9 Feb., 1970 [7 July, 1969], No. 6128/70. Heading B5L. A tool, e.g. a radial arm saw 11, Fig. 1, has an arm 41 on which a carriage 43 is slidably supported for movement along the arm, a tool means, e.g. a circular saw 85, suspended from the carriage, and manually operable clamping means on said carriage adapted to clamp the carriage to the arm, the arrangement being such that the reaction forces on the carriage to the clamping forces on the arm are equalized in a direction transverse to the arm.  In the saw described the arm 41, Fig. 2, has tracks 57, 59 and the carriage has tracks 61, 63. Balls 45, 47 supported by a shroud 53 run in the tracks to provide for relative movement of the carriage and arm.  The carriage has mounted therein a pair of slidable gibs 101, 103 which can be urged together against the arm 41 by rotation of a knob 119 on a threaded bolt 117, to clamp the carriage to the arm. The saw blade 85 is supported from a yoke 69, Fig. 1, which is pivotally mounted on the carriage 43, and the position of the yoke relative to the carriage is established by engagement of a spring-loaded detent in one of two holes in the carriage. In one position the saw blade is adapted for cross-cutting in which case the carriage is movable along the arm, and in the other position the saw blade is at 90 degrees to the Fig. 1 position, the carriage is clamped to the arm, and ripping may be performed. Reference has been directed by the Comptroller to Specification 1,208,083.
Patent GB-988762-A (GB)
Title: Improvements in or relating to warning apparatus
Inventor: FROGGATT DENNIS GORDON
IPC: H03K3/26
Filed: 1963-02-15
Abstract: 988, 762. Time alarm signals. S. SMITH & SONS (ENGLAND) Ltd. March 6,1964 [Feb. 15, 1963], No. 6143/63. Heading G3T. [Also in Division H3] A warning apparatus Fig. 1 comprises a pulse generator 1; a chain of at least two bi-stables, B1. . . B5; a first signalling device 3, operated by the last bi-stable B5; and AND gate 4 connected to the last bi-stable, and to one other or to the pulse generator; and a second signalling device 6 connected to the AND gate 4; the arrangement being such that when the apparatus is set into operation, the first device 3 operates after a predetermined delay, and the second device 6 operates after a further delay. As described, the device is used for ensuring that a train driver remains alert. When the device is switched on, the set circuit ensures that all the bi-stables are in their "0" state. Multivibrator 1 switches bi-stable B1 to its "1" state after 6<SP>2</SP>/3 seconds, and lights lamp 2, and the subsequent bi-stables B2. . . B5 are sequentially triggered. After 106<SP>2</SP>/ 3  seconds B5 is switched and lamps 3 are energized. After a further 6<SP>2</SP>/ 3  seconds bi-stable B1 is again triggered to its "1" state in coincidence with the "1" state of bi-stable B5 so that gate 4 opens allowing multivibrator 5 to oscillate, and the loud-speak 6 to emit an audible signal. After a further period of 6<SP>2</SP>/ 3  seconds bistables B2, B5 are both in their "1" state and gate 7 opens triggering bi-stable 6 which releases relay 8 and operates counter 9. Relay 8 controls the train emergency brake system so that when the relay is de-energized the train is stopped. If the driver operates the reset button 13 during the cycle, the bi-stables are all reset to "0" and the cycle recommences. The gate 4 and multivibrator 5 are shown in Fig. 2, and comprise a pair of Zener diodes 14, 15 connected to the base of a transistor 18. Simultaneous application of "1" inputs to both zener diodes cuts off transistor 18 and allows multivibrator 24, 25 to oscillate. Set and resent circuits, Fig. 3. When the apparatus is initially switched on, capacitor 39 is uncharged and the potential at the junction of resistors 33, 40 is insufficient to break down Zener diode 34. Transistor 50 is therefore cut off and the potential at its collector is fed through diode 44 to set the bi-stables to the "0" state. Operation of the manual reset button 36 produces a negative pulse which is fed via capacitor 48, and diode 45 to also reset the bi-stables. Bi-stable B5 is arranged so that it can only be reset to its " 0" state by the set circuit 11 or reset circuit 12. The apparatus may be modified to vary the time period with train speed, and to be reset whenever the brakes or throttle are adjusted.
Patent GB-349465-A (GB)
Title: Improvements in or relating to manhole and like covers, gulley grids and the like and frames therefor
IPC: E02D29/14
Filed: 1930-02-25
Abstract: 349,465. Road surface boxes. WATTS, P. M., Catherine Street Foundry, Macclesfield, Cheshire. Feb. 25, 1930, No. 6154. [Class 107.] The frame of a rectangular manhole, gully grid, or the like, has corner pieces on which the cover or grid rests and is provided with parallel-sided ribs or projections which enter gaps in the walls of the cover, the projections and gaps being so arranged that the cover can be inserted only in one position. The projections d, Fig. 1, of a frame a are arranged at different distances from the respective corners and are adapted to enter corresponding recesses b2 in the cover b, as shown in sectional elevation in Fig. 4. The corners of the frame have bosses which form horizontal seatings c for complemental seatings b<3> of the cover. The seatings may be formed of hard steel plates f, b<4>, which may be cast in the frame or cover respectively or may be riveted thereto. Alternatively, the seatings may be of metal-reinforced balata. The cover is provided with recesses e which receive a lever or the like for raising purposes.
Patent GB-455888-A (GB)
Title: Method of separating heterogeneous mixtures
IPC: B03B5/30
Filed: 1935-04-23
Abstract: A settling tank similar to that described in Specification 455,856.ALSO:In the separation of materials of different specific gravities in a medium comprising a suspension of finely divided solids in liquid some of the medium is allowed to drain from the separated particles and another portion of the medium is separated from the particles by washing, the latter portion being passed to a settling chamber from the upper portion of which liquid containing deleterious slimes is withdrawn and at least partially removed from the circuit.  Settled medium is withdrawn from the bottom of the settling chamber, mixed with the medium removed from the particles by draining, and the mixture returned to the separating chamber.  Fresh medium may be mixed with the diluted medium in the settling chamber and froth containing finely divided solids may be skimmed from the liquid withdrawn from the upper portion of the settling chamber and removed from the circuit.  A portion of the liquid withdrawn from the upper portion of the settling chamber may be used to wash the particles withdrawn from the separating chamber.  The invention is described with reference to the plant shown in Specification 455,856. Specification 455,889 also is referred to.
Patent GB-139779-A (GB)
Title: Improvements in or relating to switch-board arrangements particularly for field telephone apparatus
IPC: H04M1/52
Filed: 1920-03-02
Abstract: 139,779. Siemens & Halske Akt.-Ges., (Assignees of Reuss, F.). March 4,1916, [Convention date]. Exchange switchboards.-A switchboard for a field telephone system consists of a number of separate boxes 1, Figs. 1 and 2, one for each line, each of which is provided with line terminals 2 connected to the spring contacts 5 of a jack 6. The springs 5 normally engage contacts 7 connected to an indicator 10 the circuit of which is broken when a plug 4 is inserted. The line terminals 2 are also connected to spring contacts 14 through which and the contacts 13 the line is connected to the sockets 11 upon the depression of the button 16. The exchange operator's set 20, 21 is connected to one of the several lines, upon the depression of the corresponding button 16, through a plug coupling 11 and plug couplings 11, 22 between the adjacent boxes.
Patent GB-165798-A (GB)
Title: Improvements in and connected with the planes of aeroplanes
IPC: B64C3/54
Filed: 1917-05-04
Abstract: 165,798. Patent Corporation, Ltd., and Thompson, W. P. May 4, 1917. Addition to 110,031, [Class 4, Aeronautics]. Rectilinear-motion bearings; balls for bearings. -In a plane of variable area for an aeroplane, guide pieces 46, carried by a moving part 17, slide in ball carriages 47, Figs. 14 and 22, secured within split tubes 45. In another form in which balls carried by plates slide in split tubes, each ball may be formed in two halves, one half 31, Fig. 20, being fitted with a shouldered stem to which the other half 33 is secured by riveting after the stem has been passed through the plate 30<1>.
Patent GB-751129-A (GB)
Title: Improvements in the production of quaternary ammonium salts
IPC: C07D295/037
Filed: 1954-03-05
Abstract: Quaternary ammonium carbonates and formates are obtained by heating carbonic or formic esters with tertiary amines in which the nitrogen atom does not form part of a ring of aromatic character.  The reaction is preferably carried out under pressure at 120-250 DEG  C.; a solvent or diluent may be present.  Examples show the production of (1) tetramethylammonium formate from trimethylamine and methyl formate; (2) hexane - 1 : 6 - bis - (trimethylammonium carbonate) from 1 : 6 - bis - dimethylamino - hexane and dimethyl carbonate; (3) choline carbonate from trimethylamine and glycol carbonate; and (4) 3-methylpentane-1 : 5-bis-(N-methylpyrrolidinium) carbonate from 3-methyl - 1 : 5 - dipyrrolidino - pentane and dimethyl carbonate. The carbonate salts (2)-(4) may be converted to salts of other inorganic or organic acids, the tartrates being exemplified.  Other specified amines are triethylamine, dimethylethanolamine, diethylisopropylamine, dimethyloleylamine, N : N - diethylcyclohexylamine, dimethylaniline and 1 : 6-dipyrrolidinohexane.  Other esters that may be used are isopropyl, lauryl, oleyl, cyclohexyl and phenyl formates and carbonates.
Patent GB-850223-A (GB)
Title: Improvements relating to control equipment for transmitting signals in binary form
Inventor: HERAUD JOHN DAVID STANLEY
IPC: H04L25/40
Filed: 1956-03-01
Abstract: 850,223. Electric distributers; type-printing telegraphy. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Feb. 27, 1957 [March 1, 1956], No. 6470/56. Class 40(3). [Also in Group XIX] Apparatus for dynamicizing simultaneously existing binary notation signals for transmission in serial manner, for example, to a teleprinter, comprises a multi-cathode stepping discharge tube, a plurality of input circuits, each associated with a cathode, and each including a resistance adjustable to preset that circuit in accordance with a binary notation signal to be dynamicized and means for causing an anode-cathode discharge to invest each cathode in turn and thereby effect the aerial transmission of input signals corresponding to the binary rotation signals to which the input circuits associated with the cathodes have been preset. In the stop condition with the glow on the cathode K12, the resistor R7 provides a small amplitude stop pulse. When a trip pulse is received from a signal source, such as a computer, a gate circuit G is opened by the control circuit CC and allows the next driving pulse at 100 c/s to shift the glow to the first cathode Kl, which through resistor R1 provides a relatively large amplitude start pulse. The voltage from cathode K1 and resistor R1 trips a gate pulse generator GG which closes the gate G for 15 m.secs., so that the subsequent 10 m.sec. pulse is inoperative, but the following 10 m.sec. pulse is operative to step the glow to K2, on which it remains until the next 10 m.sec. pulse moves the glow to K3. As the pairs of cathodes K2, K3, K4 K5 - K10, K1 1 are strapped together, the anode voltages for periods of 20 m.secs. will depend on the selective closures, at the input to the multi-cathode tube, of the contacts Cl - C5 corresponding to the signal to be transmitted. The gate pulse generator GG is arranged to hold the gate G open until the end of the five information elements, i.e. 120 m.secs. from its initial operation and when the glow reaches the cathode K12 a pulse through resistor R7 and the control circuit CC closes the gate G until the next trip pulse from the computer or other signal source operates the control circuit CC to open the gate G to the driving pulses. Portions only are taken from the anode wave form of the duodekatron during the intervals of the signal elements, and the output is used to operate a relay through which the teleprinter is fed from an auxiliary D.C. supply.
Patent GB-288014-A (GB)
Title: Improvements in or relating to appliances or utensils for use in preparing apples or like fruit
IPC: A47J25/00
Filed: 1927-03-09
Abstract: 288,014. Coote, W. March 9, 1927. Coring apples.-A hand-tool for coring and slicing apples &c. consists of a cylindrical cutter a, a number of radially arranged cutters b, curving outwards and upwards, sharpened on their leading and vertical edges and connected at their rear ends to a stem c secured in a handle d. The cutting edges may be serrated or formed with V- shaped projections.
Patent GB-248788-A (GB)
Title: Improvements in sheet registering and slow-down devices for sheet-feeding apparatus
IPC: B65H9/14
Filed: 1925-08-10
Abstract: 248,788. Dexter Folder Co., (Assignees of Christophel, C. E.). Aug. 14, 1924, [Convention date]. Drawings to Specification. Sheet separators, carriers, guides, and registering-devices ; feed-tables ; pile tables and supports. -The description in the present Specification is comprised also in that of Specification 238,547, and the claims are confined to the sheet-registering and slow-down devices for controlling the sheets as they approach the front stops. Specifications 248,785, 248,786, [Class 100 (ii), Printing processes &c.], 248,787, and 248,789 also are referred to.
Patent GB-454133-A (GB)
Title: Improvements in and relating to amplifying devices for electron currents
IPC: H01J43/22
Filed: 1936-03-05
Abstract: 454,133. Electron multipliers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 5, 1936, No. 6679. Convention date, March 7, 1935. [Class 39 (i)] Metal nets or foils 1.. 4 are placed one behind another along the axis of concentric cylindrical nets or foils 5 .. 7 within a cupshaped receiving cage K. The nets are maintained at increasing potentials towards the sides and closed end of the cup K as shown and the cup is maintained above the potentials of the nets so that an electron beam E to be amplified entering the open end of the cup K releases secondary electrons from the nets, and these release secondaries from succeeding nets before the electron current is finally collected by the cup K. The nets may be coated with caesium oxide and are arranged in a vacuum. The arrangement may be applied to television receivers and photoelectric cells. Specification 381,306 is referred to.
Patent GB-1067254-A (GB)
Title: Improvements in or relating to marine derricks
IPC: B66C23/60
Filed: 1965-02-16
Abstract: 1,067,254. Ship's derricks. S. KURIBAYASHI. Feb. 16, 1965 [July 17, 1964 (2)], No. 6718/65. Heading B8B. To prevent one of the guy pendants 8, 9 of a ship's derrick going slack during slewing of a boom 1, both pendants are attached to the end of a topping lift 10 at 15. The guy pendants are simultaneously wound in and paid-out by a single winch 6. Pulleys 4, 5 are aligned with a mast 11 and disposed laterally thereof. Figs. 4, 5, 6 (not shown), indicate various methods of attaching the guys to the topping lift. In a second embodiment. Fig. 7 (not shown), only one guy pendant is attached to the topping lift, whilst the other is attached to the boom at (20) near its outer end. The topping lift may comprise a double run.
Patent GB-1166142-A (GB)
Title: Process for the Preparation of Alpha Nitro-Ketones
IPC: C07C51/097
Filed: 1967-02-13
Abstract: 1,166,142. Preparation of α-nitro-ketones. GULF RESEARCH & DEVELOPMENT CO. 13 Feb., 1967 [16 Feb., 1966; 23 Jan., 1967], No. 6719/67. Heading C2C. α-Nitro-ketones, particularly those of formula R 1 .CO.C(N0 2 )R 2 R 3  (wherein R 1  is a hydrocarbon radical of from 1 to 23 carbon atoms, and R 2  and R 3  are hydrogen or a hydrocarbon radical of from 1 to 23 carbon atoms, subject to a maximum carbon atom content for R 1 , R 2  and R 3  of 23) are prepared by heating an α- nitro-nitroso compound, wherein the carbon atom bearing the nitroso group also carries a hydrogen atom preferably of formula in the presence of a reaction medium comprising water, a soluble acid having a dissociation constant in water at 25‹ C. greater than 10<SP>-2</SP> and preferably an inert, water-miscible solvent for the nitro-nitroso compound, e.g. acetone. The weight per cent of the anhydrous acid in the reaction medium is less than 60, and both the stoichiometric ratio of water and acid respectively to the nitro-nitroso compound are at least 0.8:1. The intermediate α-nitro-nitroso compounds are obtained by nitrosation of monoolefinic or non-conjugated di-olefinic hydrocarbons, and are usually isolated in the form of their dimers.
Patent GB-127649-A (GB)
Title: Improvements relating to Internal Combustion Engines.
IPC: F02B75/22
Filed: 1917-05-11
Abstract: 127,649. Coatalen, L., Stevens, H. C. M., and Sunbeam Motor Car Co. May 11, 1917. Valve-gear. - In engines having cylinders disposed in the form of a V, overhead cam-shafts are driven through intermediate shafts a having bevelwheels b which gear with a common wheel c on a shaft d geared to a wheel e on the crank-shaft. Alternatively, the wheel e may gear with a wheel on one of the intermediate shafts, which actuates the other intermediate shaft through an idle wheel. The wheels g, h, i, Fig. 2, may transmit motion to accessories.
Patent GB-1301051-A (GB)
Title: A method of treating high boiling by-products obtained in the synthesis of isoprene from isobutylene and formaldehyde
Inventor: OGORODNIKOV SERGEI KIRILLOVICH
IPC: C07C1/20
Filed: 1971-03-12
Abstract: 1301051 Methylol; methyldihydropyran; formaldehyde VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESSOV 12 March 1971 6744/71 Heading C2C [Also in Division C5] The high boiling products, boiling in the range 180-350‹C., formed in the first stage of an isoprene synthesis from isobutylene and formaldehyde are processed to recover isoprene, isobutylene and formaldehyde by (a) reacting the high boiling products with methanol in an aqueous medium at 70-110‹ C. in the presence of an organic solvent, which is immiscible with the aqueous medium, and a sulphuric acid catalyst to form a methylol-methanol fraction and a methyldihydropyran fraction; (b) separating these fractions by distillation; (c) splitting the methylal-methanol fraction over calcium phosphate catalyst at 300-350‹C. to give formaldehyde and (d) pyrolysing the methyldihydropyran fraction at 450-600‹C. to give isoprene, isobutylene and formaldehyde.
Patent GB-180444-A (GB)
Title: A pressure reducing device for fluids
IPC: G05D16/02
Filed: 1921-03-01
Abstract: 180,444. Buck, E. C. March 1, 1921. Fluids, regulating pressure of.-A pressure-reducing device for fluids in pipes comprises a tapering circular passage c, the surface of which may be curved along its length in the manner shown; the smaller end d of the passage immediately opens into a chamber e of larger cross-sectional area. The inlet and outlet pipe connections are indicated at band f.