baber/WOPTO huggingface dataset:
Patent GB-775794-A (GB)
Title: A process for the preparation of lactams
Filed: 1955-04-18
Abstract: Lactams are prepared by reacting an aqueous solution of a water-soluble salt of a nitrocycloalkane and a primary nitroalkane at a temperature of 100-170 DEG C. in presence of sulphuric acid, said sulphuric acid being present throughout the reaction in an amount by weight at least equal to the amount of water.  The reaction may be carried out either by adding the aqueous solution of nitrocycloalkane salt to a sulphuric acid solution of the nitroalkane or by adding the nitroalkane and the aqueous solution of nitrocycloalkane salt simultaneously to sulphuric acid.  The molar ratio of nitroalkane to nitrocycloalkane salt is preferably at least 1 to 1.  The water-soluble nitrocycloalkane salt is preferably an alkali metal or ammonium salt.  Specified nitroalkanes are nitromethane, nitroethane and 1-nitropropane.  Specified nitrocycloalkanes are nitrocyclobutane, nitrocyclopentane, nitrocyclohexane, nitrocycloheptane and nitrocyclo-octane.  Exemplified lactam products are butyrolactam, d -valerolactam, e -caprolactam, caprylolactam and enantholactam.
Patent GB-1103032-A (GB)
Title: Jet pump assembly in a nuclear reactor
IPC: G21C15/25
Filed: 1966-03-14
Abstract: 1,103,032. Nuclear power plant. GENERAL ELECTRIC CO. 14 March, 1966 [5 April, 1965], No. 11059/66. Heading G6C. [Also in Division F1] In a nuclear reactor (10), Fig. 1 (not shown), a series of jet pump assemblies 58, Fig. 2B (see Division F1), located in a downcomer annulus between the reactor core and the casing, circulate the water through the reactor core. In operation, pressure water from pump (81) enters via manifolds 82 and arcuate manifolds 80 and thence passes via vertical risers (78), Fig. 5 (not shown), into the nozzles (73) of each associated pair of jet pumps. The water is forced downwards via elbow 71 into the shroud skirt 53 and passes upwards through the reactor core where it is vaporized to a mixture of steam and water which is separated at the steam separators 24, water being returned to the downcomer annulus. Steam passes the drying panels 22 for power use in turbine (47) and is then condensed in condenser (48) and returned to the downcomer annulus by a pump (50) and feed water sparger nozzles 30, Fig. 2A. The reactor core fuel assembly consists of vertical assemblies 33 arranged in groups of four resting in control rod guide tubes 34, each sealed in grid plates 35. A separate control rod 38 is mounted in each guide tube for sliding between the four adjacent fuel assemblies 33. Vertical flow channels (42), Fig. 4 (not shown), extend through each vertical fuel assembly and open out the lower and upper ends of each fuel assembly. Each fuel channel lower end is sealed in a water inlet opening (44) in a guide tube casting (45) so that water can flow upwardly. Control rod drive pistons 51 which each extend through thimbles 52 are operated by conventional equipment. Each jet pump upper part can be released without disturbance to the lower part (see Division F1).
Patent GB-215390-A (GB)
Title: Improvements in or relating to gear cutting machines
IPC: B23F5/20
Filed: 1924-05-05
Abstract: 215,390. Moll, J. May 5, 1923, [Convention date]. Gear-cutting.-In a machine for cutting bevel gears with curved teeth, the blank q and cutterspindle a are both continuously rotated at speeds such that the blank rotates through one pitch for each revolution of the cutter-spindle, the latter being bored to receive diametrallv opposed tool-holders b provided with cutting tools i which act alternately on the blank and are withdrawn when in non-cutting position by means of a cam f mounted in the spindle bearing and coacting with rollers c on the tool-holders and springs g. The blank-spindle is driven through change-gears o from a driving-shaft m which is also geared to a shaft n driving through change-gears p a wheel h on the cutter-spindle. Specification 106,520 is referred to.
Patent GB-222414-A (GB)
Title: Improvements in or relating to water filters
Filed: 1924-05-06
Abstract: 222,414. Martin, A. H. May 6, 1924. Filters with loose filtering-materials.-A filter for water adapted to be assembled without the use of screws or bolts comprises a cylindrical casing 1 with an overflow aperture or apertures, a removable disc or tray 4, supporting filtering- material and provided with an upright inlet pipe 5, and a funnel 6 supported loosely in the top of the casing and in communication with the pipe 5. As shown, the filter is supported by the cover of a rain water tank and has a central overflow pipe 2. A wire basket 8 prevents leaves from entering the funnel. Instead of the pipe 2 there may be series of overflow apertures in the wall of the casing, the pipe 5 being then placed centrally.
Patent GB-554304-A (GB)
Title: Electric boiling apparatus
IPC: F24C15/10
Filed: 1941-09-02
Abstract: 554,304. Electric boiling apparatus. ENTREPRISES ELECTRIQUES FRIBOURGE-OISES. and CHALLETT, E. Sept. 2, 1941, No. 11235. Convention date, Sept. 12, 1940. [Class 39 (iii)] An electric hotplate 1 is controlled by a switch 2 having supply terminals 4, and three spring clips 5 which are connected selectively to the terminals 4 by a rotary switch member within the base 3. The hot-plate 1 is provided with contact plugs 7 to engage the clips 5. The switch is aranged in proximity to the hot-plate 1 and is combined with the contact clips 5 so that cable connections between switch and plug sockets are avoided. Various combinations of two or more hot-plates are described.
Patent GB-848785-A (GB)
Title: Improvements in or relating to multi-stage oil-sealed rotary vacuum pumps
IPC: F04C29/02
Filed: 1959-04-02
Abstract: 848,785. Rotary pumps. HERAEUS G.m.b.H., W. C. April 2, 1959 [May 21, 1958], No. 11236/59. Class 110 (2). In a multi-stage oil-sealed rotary vacuum pump the oil supply chambers 2, 6 have drainage apertures 9, 10, respectively, which are jointly controlled by a common plug 13 screwthreaded into the aperture 10. The pump is also provided with oil filling apertures 18, 19 controlled by a plug 20. In a modification, Fig. 2 (not shown), the drainage plug is provided with concentric bores in communication with the chambers 2, 6, respectively, and permits a recirculation of oil through a regenerator. In a second modification, Fig. 3 (not shown), the drainage plug is provided with a bore establishing communication between the chamber 6 and the regenerator, the oil being recirculated to the chamber 2 via the filling plug 20.
Patent GB-1234772-A (GB)
Title: Improvements in or relating to powered hand tools for soil cultivation
Inventor: ASPIN FRANK METCALF
IPC: A01B33/06
Filed: 1967-03-10
Abstract: 1,234,772. Hand operated soil cultivator. F. M. ASPIN. 10 June, 1968 [10 March, 1967], No. 11265/67. Heading A1B. A portable powered hand implement for working soil comprises a tubular handle 10 adapted to receive a portable power unit (11), Fig. 2 (not shown), a gearbox 12, a power transmission shaft (not shown) extending through the handle, and two tool-receiving sockets having soil-working tools 13, 14. The tools are of helical shape, are of opposite hand, are spaced so as to overlap, are rotated in opposite directions and have their helices phased so that the implement has an appreciable directional bias when operated. A shoe plate 15 controls the depth the tools can penetrate into the soil.
Patent GB-371594-A (GB)
Title: Improvements in and relating to processes for the production of leuco-1-4-5-8-tetraaminoanthraquinone and derivatives thereof
IPC: C09B1/22
Filed: 1931-04-16
Abstract: 1 : 4 : 5 : 8-Tetraaminoanthraquinones and their leuco derivatives are obtained from b -mono-or di-sulphonic acids of a -diamino-a -dihydroxyanthraquinones by treatment with ammonia or primary or secondary aliphatic amines and simultaneously with alkali hydrosulphite at an elevated temperature and pressure and oxidizing the leuco compounds thus obtained.  In an example sodium 1 : 5-dihydroxy-4 : 8-diaminoanthraquinone - b  - monosulphonate is heated with aqueous ammonia and sodium hydrosulphite in an autoclave; the leuco-1 : 4 : 5 : 8-tetraamino compound is formed which on oxidation with nitrobenzene in presence of thionylchloride yields pure 1 : 4 : 5 : 8-tetraaminoanthraquinone; the 2 : 6-disulphonic acid is also specified as starting material.  Specifications 268,891, 310,784, and 316,989, [all in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers generally to the use of primary and secondary amines in the process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-113771-A (GB)
IPC: G11B3/48
Abstract: 113,771. Imray, O., (Acolian Co.). Nov. 14, 1917. Tools for reproducing. - Gramophone needles a r e formed from a metal sheath 2 drawn into close contact with an enclosed wire 1, the expcsed end of which forms the record-engaging point 4. The wire used is preferably piano-wire of six to eight thousandths of an inch diameter and is placed loosely in a. length of steel or brass sheathing 2, which is then drawn through a die. The sheathing ie then removed from the point 4 by milling, and a suitable length is cut off to form the needle.
Patent GB-892388-A (GB)
Title: Filter for separating solid and liquid constituents from gaseous media
IPC: B03C3/36
Filed: 1960-04-01
Abstract: 892,388. Separating dust from gases. KAUFMANN, W. April 1, 1960 [April 9, 1959], No. 11519/60. Class 8(2). [Also in Group XL(a)] In a filter, e.g. of the tube or filter mat type, for separating solids and liquids from gases, the gases are reduced in speed by deflection through 90 degrees by means of arcuate plates 4, followed by deflection, in a plane at rightangles to the first deflection, through 180 degrees by means of diffusers 5 which include arcuate walls 6 and downwardly projecting walls 7. The diffusers 5 provide flow zones gradually increasing in cross-section. After passage through the filtering zone 2 the gases may be accelerated by a further deflection through 90 degrees by means of bent plates to pass through nozzle slits formed between these plates.
Patent GB-1573818-A (GB)
Title: Coating of metal surfaces with surface coating agents
IPC: C09D167/02
Filed: 1977-03-18
Abstract: The pulverulent coating composition is suitable for the coating of metal surfaces at elevated temperatures. It contains a saturated, high-molecular-weight, thermoplastic copolyester obtainable by condensation of terephthalic acid, from 10 to 60 mol% of cycloaliphatic carboxylic acids and from 0 to 20 mol% of aliphatic dicarboxylic acids having 2 to 12 carbon atoms in the carbon chain with 1,4-butanediol and optionally further diols. The mol% data are based on the total amount of acid. The coating composition also contains auxiliaries and additives.
Patent GB-1100945-A (GB)
Title: Improvements in atomizer pump assemblies
IPC: B05B11/00
Filed: 1965-03-18
Abstract: 1,100,945. Reciprocating pumps. VAPORISATEURS MARCEL FRANCK. March 18, 1965 [March 19, 1964], No.11547/65. Heading F1A. A hand-actuated atomizer pump assembly for mounting on a liquid container comprises a bucket diaphragm 8 defining a pumping chamber 1a, 7a, liquid entering via filter 18 and being delivered via passages 9a, 9, check valve 6 and spray nozzle 16, and a spring 4 biasing the diaphragm to a rest position in which communication between the pumping chamber 1a, 7a and the outlet is broken. In the embodiment shown, communication is broken by a disc 10 sealing against the diaphragm in its rest position. In another embodiment, Fig. 3 (not shown), a sleeve portion formed on the diaphragm acts to close passage 9a when in the rest position. In a further embodiment, Fig. 5 (not shown), a resilient disc is positioned to break the communication between passage 9a and pumping chamber 1a. An air inlet passage to the container, comprising clearance 11a, grooves 24, 23a and clearance 21, is also closed in the rest position.
Patent GB-312765-A (GB)
Title: Cut off mechanism for continuous rod cigarette making machines
IPC: A24C5/30
Filed: 1928-04-19
Abstract: 312,765. Berger, M., and United Cigarette Machine Co. Akt.-Ges. April 19, 1928. Cigarette-making machines.-The rotary knife of the, cut-off mechanism of a continuous-rod machine, having a reciprocating or oscillating movement in the direction of its axis, is driven at such a speed in relation to that of the knifecarrier that, whilst being sharpened at one or both ends of its stroke by contact with a grinding- tool or tools, either successive portions of the edge are ground in successive strokes, or the whole of the edge contacts with the tool. Fig. 1 shows a construction in which the knife n has a planebry motion, being mounted on a spindle i in a carrier f rotated by a toothed wheel e, the knife being driven by a pinion p on its spindle and internal teeth r on a casing b, the ratio of the speed of the knife to that of the carrier being such that successive portions of the knife-edge are ground. In a modification, Fig. 3, the knife 4 is mounted on a rotary disc 1 and is driven by a belt 7 running over a fixed pulley 6..In a further modification, a belt drive is employed,. the knife being driven independently of the carrier and arranged to rotate at such a speed that its whole edge is ground at each contact with the grinding-tool. The knife may be driven by an electric motor mounted on the carrier, or by a friction drive.
Patent GB-570851-A (GB)
Title: Improvements in and relating to ice-guards for air intake systems of aircraft
IPC: F02M35/02
Filed: 1943-07-16
Abstract: 570,851. Radiator guards. BLACKBURN AIRCRAFT, Ltd., and TOPLIS, J. G. July 16, 1943, No. 11587. [Class 64 (iii)] [Also in Group XXVIII] An ice-guard or protective filter for the air intake systems of aircraft is formed of parallel wires or rods 2 made fast to flat strips 1 at right angles to them, e.g., by welding ; the strips may be notched to receive the wires, etc. The parts are surrounded by a flat or curved frame in the lower front part of which holes 5 may be formed.
Patent GB-742947-A (GB)
Title: Improvements in heating and ventilating devices, particularly for vehicles
Inventor: LAMBURN ALAN SALISBURY
IPC: B60H1/00
Filed: 1953-04-27
Abstract: 742,947. Ventilating vehicles. SMITH & SONS (ENGLAND), Ltd., S. April 26, 1954 [April 27, 1953], No. 11644/53. Class 137. Apparatus particularly for ventilating vehicles comprises a sheet metal casing 1 which has a rectangular portion 2 surrounding a radiator element 3 supplied through pipes 4, 5 with hot coolant from the engine cooling system, and which is mountable by brackets 26 parallel with the vehicle dash board with its louvred face, not shown, directed toward the vehicle interior and the remaining tapered portion 5 directed away from the passenger compartment. A fan 6, driven by an electric motor 7 is arranged adjacent the inner face of the element 3 (and inlet openings 12, 13, controlled by butterfly valves 10, 11, communicate with fresh air and air from the vehicle interior respectively. An opening 8 leads to the vehicle windscreen, not shown. The valve 10 is mounted on a shaft 14 which has also mounted thereon a control lever 15, a cam 16, and an arm 17 having a pin 18 capable of engaging with a slot 19 in the end of the operating lever for a switch 9 controlling the motor 7. The cam 16, having a single lobe, is adapted to engage with a pin 20 on a lever 21 which is pivoted about an axis parallel to the shaft 14, and is connected by a link 23 to the valve 11. The lever 21 is loaded by a spring 22 to normally hold the valve closed. In operation the initial movement of the lever 15 opens the valve 10 and due to ram effect, fresh air is forced through the radiator 3 and heated air is supplied through the louvred face of the casing 1 to the vehicle interior. Upon moving the lever 15 further, the pin 18 engages the slot 19 and the fan motor 7 is started, the fan blade 6, being designed to supply air axially and certrifugally, increases the flow of fresh air through the element 3 and also delivers fresh air centrifugally to the opening 8 for demisting the windscreen. When the valve 10 is fully open the cam 16 operates the lever 21 and the valve 11 is opened so that the fresh air is supplemented by recirculated air from within the vehicle interior. In the extreme position of the lever 15 both valves 10, 11 are shut, the centrifugal effect of the fan 6 causing air to be drawn through the louvred opening at the front of the casing for delivery of hot air, at low velocity, to the windscreen.
Patent GB-894545-A (GB)
Title: Tool holding device
IPC: B23B31/113
Filed: 1960-04-01
Abstract: 894,545. Tool-holders. ELLEDGE, M. D., and MANN, W. I. April 1, 1960 [April 6, 1959], No. 11662/60. Class 83 (3). A rotating or non-rotating tool-holder for lathes, milling machines, &c., comprises means for locking a tool-head 2 in a socket 3 against relative rotary movement, and separate means for locking the head 2 axially in the socket. The socket 3 is split at 6a, Fig. 3, and is clamped on a bar or rotating spindle A by a bolt 6, and has a tapered-bore 7 for receiving the toolhead 2. A pin 13 in the socket engages a slot 11 in the tool-head to prevent relative rotation of the members 2, 3, and a second pin 15 engages a helical slot 12 in the head 2 to force the latter axially into and out of the bore 7. A peripheral groove 14 on the socket, contains a channel sectioned quadrant 18, two pairs of legs 17, and a quadrant 16 to which the pin 15 is secured. The members 16-18 occupy the complete length of the groove 14, and are rotated in the groove by a ring 19 secured to the quadrant 16, the members being pre-tensioned in a clockwise direction by a spring 22 secured to a pair of legs 17 at 23, and to the socket 3 at 21, the rotation being limited by the ends of a slot 24 in the socket 3. In operation, the ring 19 is rotated counterclockwise against the spring until the pin 15 is axially aligned with the pin 13, the tool-head is inserted, thus engaging the pin 13 in the slot 11, and the ring 19 is released to allow the pin 15 to enter the slot 12, and due to the helix of the slot, the head is drawn into the socket. The split end 6a of the socket may be replaced by a tapered shank for securing to a machine spindle by a draw-bar. In a modification, the socket 29, Fig. 9, is secured to a milling machine spindle S by a sliding sleeve S<SP>1</SP>, actuated by a draw-bar R, the socket being locked on the spindle against rotation by a split ring E, which is expanded by the spindle S when the drawbar is rotated.
Patent GB-375474-A (GB)
Title: Improvements in or relating to cooking ranges
IPC: A47J36/38
Filed: 1931-11-16
Abstract: 375,474. Frying-ranges. DAVIES, W. F., 139, Woodfield Street, Morriston, Swansea. Nov. 16, 1931, No. 11723. [Class 126.] Fumes from the pans of a frying-range pass by outlets 6 to a main flue 8 from whence, when dampers 17 are open, they pass by branch flues 18 to the chimney 21. When the dampers 17 are closed and a fan 7 is operated the fumes are passed by the fan, according to the setting of a damper 11, either into pipes 13, 14 by which they are delivered above or below, or above and below, the fires, or alternatively to a flue 19 communicating with one of the flues 18 leading to the chimney 21. Removable grease catchers 15 are provided in the pipes 13, 14, drainers (not shown) being also provided at the lowermost points of these pipes. Further grease catchers 9 are situated beneath the ends of the flue 8.
Patent GB-422840-A (GB)
Title: Improvements in and relating to rotary drums for drying or other processes
IPC: F26B11/04
Filed: 1933-04-21
Abstract: A rotary drum for subjecting solid materials to chemical treatment by the passage of gases over them has an internal cellular structure of ledges and vanes built up of metal strips interlocking in the manner of an egg-box.  The material is located in the cells of the structure and the strips may be so shaped that each cell has a notched wall through which the material may fall during rotation of the drum to a cell at a lower level.
Patent GB-165997-A (GB)
Title: Improvements in washing machines
IPC: D06F15/00
Filed: 1920-04-28
Abstract: 165,997. Derschug, J. N., and Syracuse Washing Machine Corporation. April 28, 1920. Washing-machines with plungers having both rotary and axially-reciprocating motion.-In a machine of the type employing dashers 51 carried by a reciprocating and axially-rotating plunger shaft 29, the latter receives intermittent rotary movements by means of an arm G which is loose on the shaft but is connected to it by a spring pawl and ratchet-wheel 63 and has a pin g<1> to engage at each stroke with a fixed bracket H provided with an inclined cam slot h. The shaft 29 is reciprocated by a motor A through universal joints, a friction coupling F, a hand-controlled worm-gearing clutch, and crank mechanism including a link 76, lever 73, and a stirrup 68. The post 30 through which the shaft 29 reciprocates, is surrounded by a loose sleeve 35 to prevent the clothes from winding around it. The dashers 51 are resiliently mounted at the ends of a yoke 48 by means of telescoping tubular parts 49, 50 connected together by bolts 54 encircled by springs 60. The yoke is vertically adjustable on the shaft 29 and is retained in position by a spring-controlled pin 44 engaging one of a series of holes 45. A perforated false bottom 42 is spaced from the bottom of the tub by projections 41 and the base of the post 30. The tub furnished with a window 22 and a glazed lid is removably secured to its supporting platform by means of a nut at the lower end of the post 30 and is further held by a ring 5 bolted to the upper ends of the legs 6.
Patent GB-1245193-A (GB)
Title: Apparatus for measuring electron spin resonances
Inventor: HAUSSER KARL
IPC: G01R33/60
Filed: 1969-03-05
Abstract: 1, 245, 193. Electron spin resonance apparatus. K. HAUSSER. March 5, 1969 [March 5, 1968], No.11826/69. Heading G1N. Apparatus for observing electron spin resonances comprises a delay line in the form of a helix W mounted within a resonance cavity R and completely decoupled from micro-wave energy supplied to the cavity through a waveguide H and iris I. Micro-wave energy is supplied to the helix W from a waveguide H<1> through an antenna A and a doorknob coupling. The cavity may be circular or rectangular in cross-section and the resonance sample is located centrally within the helix W for observing electron spin resonance in continuous or pulsed operation and electron-electron double resonance. For observing electron-nuclear double resonance, electron-electron-nuclear triple resonance and dynamic nuclear polarization, radio frequency energy is simultaneously supplied to the helix W via a coaxial line and quarter wavelength choke.
Patent GB-419940-A (GB)
Title: Improvements relating to the construction of hats
IPC: A42C1/04
Filed: 1933-04-22
Abstract: 419,940. Hats &c. WEBB, V. W., 35, Monkwell Street, Wood Street, London. April 22, 1933, No. 11831. [Class 63.] A method of constructing hats, e.g. of straw and felt, by a blocking process to simulate hand-made hats, comprises blocking a radiallydisposed ridge or trough in the brim, severing the crown from the brim, slitting the ridge or trough along its crest or root, rejoining the severed material of the brim in seam-like manner, stitching the crown to the brim, and then finish-blocking the hat. As shown, a pressed-out tunnel f is formed in the brim e, the crown g severed from the brim along a line h, and the crest of the tunnel f slit along a line k. The divided halves of the crest portion j are doubled inwardly on to the side walls l of the tunnel f, and the crest halves and side walls l doubled inwardly again to lie adjacent the inner surface of the brim e. The severed brim is then rejoined by stitching m, the brim e and crown g stitched together, and the completed hat finish-blocked in the usual manner.