baber/WOPTO huggingface dataset:
Patent GB-598108-A (GB)
Title: Improvements relating to photography
IPC: G03C1/06
Filed: 1944-08-28
Abstract: 2-Phenylpyrimidazolium chloride acethydrazide is prepared by adding ethyl chloracetate to 2-phenylpyrimidazole, and treating with hydrazine.  2-Benzthiazolylhydrazine is prepared by reacting 2-chlorobenzthiazole with hydrazine hydrate.  b  - Benzoylacethydrazidopyridium chloride is prepared by reacting a pyridine suspension of N-acethydrazidopyridinium chloride (Girard's Reagent P) with benzoyl chloride.  The diacetone derivative of N-acethydrazidopyridinium chloride is prepared by refluxing together N-acethydrazidopyridinium chloride, acetone, absolute alcohol, and acetic acid.  The acetone derivative of acetcarbohydrazidopyridinium chloride, the glucose derivative of N-acethydrazidopyridinium chloride, and the acetone derivative of benzoyldimethylacethydrazidoammonium chloride are similarly prepared. Malonyldihydrazidopyridinium bromide is prepared by refluxing together pyridine, ethyl bromomalonate, and absolute alcohol, and treating the cooled solution with hydrazine hydrate. b -Phenylacethydrazidopyridinium chloride and benzyldimethylacethydrazidoammonium chloride are similarly prepared. Malonyldicarbohydrazidopyridinium bromide is prepared by refluxing together ethyl bromomalonate, pyridine, and absolute alcohol, adding ethyl hydrazinecarboxylate to the cooled solution and refluxing, and adding hydrazine hydrate to the again cooled solution. Acetcarbohydrazidopyridinium chloride is similarly prepared.  4 - (41 - Chloro - 21 - methylphenyl) - semicarbazide is prepared by refluxing together 2-amino-5-chlorotoluene, nitrourea, and absolute ethanol, and adding ethyl alcohol and hydrazine hydrate and refluxing.  4-(p-Chlorophenyl)-semicarbazide is similarly prepared. N - Methyl - 2 - carbohydrazidopyridinium p-toluenesulphonate is prepared by refluxing together ethyl picolinate, methyl p-toluenesulphonate, and absolute alcohol, cooling, adding hydrazine hydrate, and further refluxing.
Patent GB-878282-A (GB)
Title: Improvements in or relating to television pick-up tubes
Inventor: ALLANSON DOUGLAS
IPC: H04N5/228
Filed: 1958-05-21
Abstract: 878,282. Cathode-ray tube circuits. PYE Ltd. May 21, 1959 [May 21, 1958], No. 16374/58. Class 40(7) [Also in Group XL(b)] In an arrangement for reducing image "burnin" on the target electrode of an image type television pick-up tube by supplying a suitable deflecting waveform to auxiliary deflector coils to effect a slow continuous movement of the charge image on the target, the deflecting waveform is derived from a stabilized D.C. source V and a continuously wound potentiometer P to which the auxiliary deflector coils 7 are connected and the wipers W 1 , W 2  of which are driven at the rate of about one revolution per minute. The stabilized D.C. source may be the normal D.C. supply for tube focus coil and the wipers may be driven by the output shaft of an hour meter which records the tube life. The extent of the movement of the charge image may be varied from zero (by short-circuiting R 1 ) to an intermediate value (by shunting R 2  across R 1  by means of switch S 1 . Alternatively, or additionally, a variable potentiometer may be employed for continuous control of the extent of movement. By employing a separate synchronous clock motor to drive the wipers of the associated potentiometers the movement of the charge images on two or more pick-up tubes may be synchronized thus allowing the superimposition of the pictures from the tubes.
Patent GB-681316-A (GB)
Title: Automatic dynamic braking compensation system for a.c. electric motors
IPC: H02P3/24
Filed: 1950-07-03
Abstract: 681,316. Control of A.C. motors. CANADIAN CONTROLLERS, Ltd., and GREPE, F. Y. July 3, 1950, No. 16544/50. Class 38 (iii) Automatic compenstain of dynamic braking of a wound rotor induction motor having its stator energised with D.C. for braking purposes is provided by rectifying the voltage across the rotor resistance and feeding it back to the stator. As shown the motor 2 is energised through forward or reverse contractors 4, 5 for normal running, and sections of the rotor resistance are shorted out by contactors 1A-4A. For dynamic braking the stator is D.C. energised from a rectifier 12 through contactor 16 and compenstation is provided by a rectifier 10 fed from tappings on the rotor resistance to provide a substantially flat braking characteristic.
Patent GB-1321966-A (GB)
Title: Electric pressing iron
IPC: D06F75/18
Filed: 1972-04-11
Abstract: 1321966 Reciprocating pumps SUNBEAM CORP 11 April 1972 [10 May 1971] 16687/72 Heading F1A [Also in Division D1] A single acting reciprocating manuallyoperated pump for a steam and spray iron (see Division D1) comprises a piston rod 43 depression of which actuates the pump and rotation of which selectively directs the output to a conduit 62 or 65. The piston rod has a flat 55 near the bottom passing through a congruent opening in the top 57 of the rotatable pump cylinder 46, for rotating the cylinder. The nose of the cylinder 46 has an opening 52 which is selectively aligned with an opening 64 or (68) in a seal 61 and hence with the conduit 62 or 65. Conduit 62 leads to a spray nozzle, Fig. 2 (not shown). Rotation of the seal 61 is prevented by a pin (71) Figs. 4, 5 (not shown) and a detent ball 75 is provided to ensure the correct alignment of the opening 52. The pump is mounted in a reservoir (20), Fig. 1 (not shown), and has an inlet ball valve 38 and a filter 36. The pump piston 45 is of P.T.F.E, and has spring fingers 73b biasing it into contact with the cylinder wall.
Patent GB-287753-A (GB)
Title: Improvements in or relating to electric insulator suspension devices
IPC: H01B17/08
Filed: 1927-06-23
Abstract: 287,753. Hofmann, J. W. June 23, 1927. Insulators.-Relates to a suspension insulator of the kind in which the body part is formed with a socket d, having an opening on one side, which receives the enlarged head of a bolt c forming part of the next insulator in the chain. A folded spring cotter a is inserted in the socket and keeps below the bolt and keeps it from moving out of the socket. The present invention consists in making one or both of the free ends, b, of the cotter hook-shaped, so that when these ends are pushed through a rectangular opening f formed in the side wall of the socket. they engage the edges g of the opening and hold the cotter securely in place.
Patent GB-379773-A (GB)
Title: Improvements in or relating to machines for collecting hay and the like
IPC: A01D87/08
Filed: 1931-06-08
Abstract: 379,773. Hay sweeps. FISHER HUMPHRIES & CO., Ltd., Atlas Works, Pershore, Worcestershire, and HUTCHINSON, H. M., 80, St. Dunstans Crescent, Worcester. June 8, 1931, No. 16700. [Class 6 (iii).] The frame of a hay sweep collapsable in width comprises an upper and a lower part, the lower part having hinged end sections, whilst the upper part has end sections disconnectible from the lower part. The main central parts 1c, 2c, 4c of the beams 1, 2, 4 are connected by horizontal angle. bars 10 carrying V-shaped brackets 20 by which the sweep is mounted, vertical straps 5 and curved bars 6. The end sections 1a, 1b, 2a, 2b of the lower beams 1, 2 are hinged at 12 and the end sections 4a, 4b of the uppei beam 4 are removably mounted by means of channel pieces 14, 15 and wing-nuts and bolts 16. The end sections are interconnected by curved bars 6 attached to the upper sections and sliding in sockets in the lower ones, and by vertical straps 5 and straps 5<1> curved similarly to the bars 6, the straps 5, 5<1> being permanently attached to the lower sections and connected to the upper sections by bolts and wing-nuts 17. Abutment plates 11 between the central and end sections of the lower beam 1 are provided with locking bolts 19. The hay or the like gathered by the runners 7, provided with metal shoes 8, is prevented from falling laterally by inclined bars 9 fixed to the lower beams and stayed by bars 91.
Patent GB-594754-A (GB)
Title: Improvements in vertical tube gas coolers or condensers
IPC: F28G9/00
Filed: 1945-07-02
Abstract: 594,754. Vertical tube condensers. HOLMES & CO., Ltd., W. C., THOMPSON, R. J. S., and HENSHAW, D. M. July 2, 1945, No. 16736. [Class 55 (ii)] [Also in Groups XIII and XXVIII] In a vertical tube gas cooler or condenser the underside of the upper tube plate is irrigated by a plurality of upwardly directed jets of liquid introduced at one or opposite sides of the condenser. As shown, a condenser with top plate 3 and rows of vertical tubes 1 has a set of three nozzles 2a, 2b and 2c in the vertical plane at each gap between the rows of tubes, or tubes and casing. The nozzles are fed by a common header 6 and are drilled obliquely so that liquid from them will flood the whole of the under surface of the upper tube plate, and run down the outside of the tubes. In large condensers a header and nozzles may be fixed to two opposite sides. The jets may be used, e.g., in coal gas condensers, to remove deposits caused by the gas cooling.
Patent GB-649716-A (GB)
Title: Improvements in or relating to apparatus for controlling drift in lehrs
IPC: C03B25/06
Filed: 1947-06-25
Abstract: 649,716. Automatic temperature control systems. HARTFORD-EMPIRE CO. June 25, 1947, No. 16791. Convention date, June 26, 1946. [Class 38 (iv)] [Also in Groups XII, XIII and XXIX] A tunnel leer (see Group XII), is provided with an arrangement of movable dampers and deflectors which are actuated by a reversible electric motor to control the rate and direction of the drift of the atmosphere in the tunnel, the control system of the motor being responsive to variations in temperature at two spaced points in the tunnel whereby the temperatures at these points may be maintained at selected values. As shown, the motor 64 operates through linkage to rotate a shaft 11 actuating the dampers and deflectors. Variations in the temperature of a temperature-responsive element 60 are arranged to cause movement of a slider 61 on a rheostat 62 forming part of a control device 63 of known type, and a relay unit 65 operates to cause a rotation of the motor shaft 64a to a position corresponding to that of the slider. This action continues so long as the temperature of a second temperature-responsive element 68 is above a predetermined value, but if the temperature of this element falls while the temperature of element 60 is above a predetermined value, a relay 69 is energized to connect lines 70 and 71 whereby the motor shaft is moved to a position such that the dampers and deflectors induce a rapid forward drift of the tuned atmosphere. If the element 60 is also cold, auxiliary contacts 72, 72a on the controller 63 are opened to de-energize a relay 73 and connect lines 70 and 71 through a rheostat 74 whereby the shaft of the motor is moved to a position such that the dampers and deflectors are in a neutral position. The slider 75 of the rheostat 74 may be controlled by a further temperature-responsive element.
Patent GB-457641-A (GB)
Title: Improvements in or relating to glazing means for glass window panels of vehicles
IPC: B60J10/00
Filed: 1936-06-18
Abstract: 457,641. Glazing vehicle windows; frames. GENERAL MOTORS CORPORATION, Detroit, Michigan, U.S.A.-(Assignees of Fisher, A. J. ; 1771, Balmoral Drive, and Simpson, E. G. ; 19415, Argyle Crescent Drive, both in Detroit, Michigan, U.S.A.) June 18, 1936, No. 16923. Convention date, Jan. 18. [Class 20 (iii)] A glazing and sealing strip for the edges of glass panels, particularly the meeting edges of the panels of V-shaped wind-screens, comprises a recessed rubber strip 11 having an outer flexible metal moulding 10 attached to grooves therein and an inner retaining member 9. The panels are clamped to the strip by the retaining member 9 and screws 18 engaging spaced inserts 19 in the rubber. The inserted pieces 19 are situated in front of the grooves for the moulding so as to hold same, and narrow longitudinal connecting strips may be used to space the threaded screw engaging parts.
Patent GB-240580-A (GB)
Title: Improvements in or relating to temporary binders or loose sheet holders
IPC: B42F13/00
Filed: 1924-07-15
Abstract: 240,580. Petty, J. P., and Petty & Sons (Reading), Ltd. July 15, 1924. Covers.-Hollow clamping-bars for loose-leaf binders are formed from interfitting, U-sectioned sheet-metal parts which are slotted so that, when assembled, apertures are provided for binding- thongs, and straining chains and sprockets, hinges and hinge pins as described in Specification 240,579. Two sheet-metal members a, bare formed of U-section and provided respectively with slots g - - g<6> and h - - h<6> of the form shown in Figs. 1 and 3, so that, when assembled, the slots g, h, g<3>, h<3>, g<6>, h<6> combine to form apertures to receive binding-thongs, the slots g<2>, h<2>, g<4>, h<4> form apertures to accommodate the straining chains and sprockets, and the slots g<1>, h<1>, g,<5> h<5> form apertures for bent metal hinges m, m<1> through which a hinge pin l passes, the hinges being secured to plates z connected to the covers. The rounded ends f are provided with openings w, u through which keys may be inserted to operate the locking and winding spindles situated as described in the above-mentioned Specification, a pressed-out tongue y being provided to retain the locking-spindle in position.
Patent GB-1138143-A (GB)
Title: The elimination of acrolein from acrylonitrile
Filed: 1966-04-18
Abstract: 1,138,143. The elimination of acrolein from acrylonitrile. SOC. EDISON. 18 April, 1966 [4 May, 1965], No. 16950/66. Heading C2C. Raw acrylonitrile containing acrolein as impurity is purified by providing an aqueous solution of the raw acrylonitrile of pH 7À5 to 11, maintaining the solution at 70 to 150 C. for 1 to 60 minutes, and distilling the solution to obtain purified acrylonitrile. Suitable alkaline substances which may be added to give the required pH are the hydroxides, carbonates and bicarbonates of alkali metals, and they may be added before or after the raw acrylonitrile is dissolved in water. The acrylonitrile may be that obtained by the catalytic reaction of propylene, ammonia and oxygen.
Patent GB-1148171-A (GB)
Title: Cooling system
Inventor: BATHORY BELA ISTVAN
IPC: C21D9/573
Filed: 1965-04-22
Abstract: 1,148,171. Rolling. DAVY & UNITED ENG. CO. Ltd. 20 April, 1966 [22 April, 1965; 27 July, 1965], Nos. 16983/65 and 32037/65. Heading B3M. [Also in Division B2] A cooling system, suitable for cooling a horizontal strip emerging from a rolling mill, includes a header 12 disposed transversely over the strip path, with a series of curved delivery pipes 16 connected to the top of the header and extending downwardly to produce an unbroken low velocity jet of cooling liquid on the strip. The rate flow of liquid in the pipes is controlled by varying the supply to the header, restricted orifices 17 producing a lower pressure in the pipes than in the header. In an alternative arrangement, the delivery pipes are straight and extend from within the header, through its lower wall, internal longitudinal fins or tubes in the pipes producing laminar flow in the cooling liquid. In a further embodiment, Fig. 5, the delivery pipes 23 extend beyond the upper wall of the header 22, the wall being covered by a dome 30. Holes 31 connect the header with the pipes, and small diameter tubes 27 within each pipe 23 promote smooth flow of the cooling liquid.
Patent GB-1171604-A (GB)
Title: Process for the preparation of cyclic thioether compounds
IPC: C07D337/04
Filed: 1966-04-19
Abstract: 1,171,604. Bicyclic thioethers. DUNLOP CO. Ltd. (F. K. Lautenschlaeger). 18 April, 1967 [19 April, 1966], No. 16988/66. Addition to 1,104,701. Heading C2C. Novel monomeric bicyclic thioethers containing two carbon-to-carbon double bonds and two chlorine substituents, the thioether linkage being common to both rings and the chlorine atoms being attached each to a separate carbon atom in a position beta with respect to the sulphur atom, and the corresponding compounds in which the chlorine atoms are replaced by a nucleophilic reagent or in which the thioethers are oxidized to the sulphone or sulphoxide, are prepared by reacting a cyclic hydrocarbon olefine having four carbon-to-carbon double bonds with a sulphur chloride compound having an atomic ratio of sulphur to chlorine of not greater than 1:1 to yield the chlorinesubstituted compound and further reacting if required with a nucleophilic reagent or oxidizing agent. Examples prepare 2,6-dichloro-9-thiabicyclo - [3,3,1] - nona - 3,7 - diene and convert this to the corresponding dihydroxy compound, to the corresponding sulphoxide and sulphone and to a cyclic sulphide C 8 H 8 S.
Patent GB-459716-A (GB)
Title: Improvements in and relating to the charging of vertical carbonising retorts
IPC: C10B31/02
Filed: 1935-06-13
Abstract: 459,716. Charging vertical retorts. WOODALL - DUCKHAM (1920), Ltd., and KENT, A. T., 136, Victoria Street, Westminster. June 13, 1935, No. 17015. Addition to 357,146. [Class 51 (ii)] Charging apparatus for the vertical carbonizing retort according to the parent Specification comprises a car 4, running on rails 6 and carrying separate coal and coke - breeze hoppers 7, 8 the outlets of these hoppers being controlled by a single slide 13, Fig. 3, which is so arranged that the coke outlet is opened first, thus ensuring the delivery of a pad of coke breeze before the coal is charged. The slide 13 is operated, through rack-and-pinion gearing 16, by a hand wheel 17, the positions X, Y, corresponding respectively to the breeze delivering and coal charging positions, being indicated either by a pointer on the slide itself, or by an indicator on the hand wheel 17. The coke hopper 8 may be fitted with an internal slide 18 by which the amount of breeze delivered to form a pad may be controlled. Escape of smoke &c. during charging, is prevented by a drop-sleeve 10 operated by a lever 11.
Patent GB-650674-A (GB)
Title: Improvements in or relating to marking means for tennis courtsi roadways floors and the like
IPC: A63C19/06
Filed: 1946-06-04
Abstract: 650,674. Road surface markings. MARSTON, G. S., and MINERVA MOULDINGS, Ltd. June 4, 1946, No. 17016. [Class 3(ii)] [Also in Group X] Marking means for tennis courts, roadways and the like comprise a plurality of flat lengths 1, Fig. 1, of plastic material having integral projections 2 on the underside to secure them to the ground and interlocking means beween adjacent lengths permitting vertical but not longitudinal movement. The interlocking means comprise a tapered tongue 7 of round or dovetail cross section received in a correspondingly shaped groove 5. The projection 2 may be provided with upwardly directed barbs and the lateral edges of the length with downwardly directed teeth to give additional anchorage. In a modification, Fig. 4, the length is of H-shape in cross section with anchoring slots 12. Corner units may be used.
Patent GB-401784-A (GB)
Title: Improvements in indicating devices, particularly for weighing apparatus
IPC: G01G23/34
Filed: 1932-06-16
Abstract: 401,784. Indicating - apparatus. FITZPATRICK, H. J., 94, Hope Street, Glasgow.-(Naamlooze Vennootschap Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen; 33, Boezemsingel, Rotterdam, Holland.) June 16, 1932, No. 17025. [Class 106 (iv).] Multiple-indication apparatus.-An indicating device, particularly for weighing-apparatus, of the type having a chart 9 provided with weight and /or price or other indications and a reading line, is provided with a transparent member (for example a coloured glass strip 5) through which the unit price numerals on a plate 11 are visible, but which does not form a sighting passage for observation of the reading line 8 and chart indications, and is also provided with a clear section or aperture 7 arranged above the transparent member 5 and being of small depth so as to restrict the angle of vision and avoid errors due to parallax in reading the chart. As shown, the narrow section 7 is formed in a glass panel frosted at the upper part 3. A plano-cylindrical lens 10 is carried adjacent the chart by the plate 11 which bears the row of price numerals along its lower edge. A lamp 18 illuminates the price strip and drum readings. Instead of employing a separate coloured strip 5, the lower part of the glass panel may be coloured.
Patent GB-1163750-A (GB)
Title: Improvements in or relating to Stabilized Vinyl Halide Resin Compositions
IPC: C08K5/29
Filed: 1966-08-25
Abstract: 1,163,750. Stabilized vinyl halide resin compositions. TENNECO CHEMICALS Inc. 25 Aug., 1966 [26 Aug., 1965], No. 17101/69. Divided out of 1,161,766. Heading C3P. A vinyl halide resin (e.g. polyvinyl chloride, bromide or fluoride or a copolymer from vinyl halide and vinyl acetate or propionate, vinylidene chloride, styrene, methyl methacrylate, or a dialkyl fumarate or maleate) composition containing a metal silicate filler of which the average particle size is from 0.5 to 50 microns (e.g. magnesium, calcium, aluminium, iron, magnesiumcalcium, or magnesium-aluminium silicate, talc, clay, or wollastonite) is heat-stabilized with a polyhydric alcohol (e.g. ethylene or neopentyl alcohol, trimethylolpropane, hexanetriol, methyl glucoside, pentaerythritol, dipentaerythritol, tripentaerythritol, sorbitol, mannitol, 1,4-dimethylolbenzene, dimethyloltoluene, or hydroxyethylcellulose). The nitrogen-containing heat-stabilizers of Specification 1,161,766 may be used in addition. Plasticizers such as dioctyl or butyl benzyl phthalate or tricresyl or cresyl diphenyl phosphate; fillers and pigments such as calcium or barium sulphate or carbonate silica, titanium dioxide, iron oxide, or lead chromate; other heat and light stabilizers; extenders; solvents; binders; or dyes may be incorporated. A translucent composition comprises the resin; magnesium, calcium, aluminium, iron, magnesium-calcium or magnesium-aluminium silicate; and pentaerythritol. In an example, a composition is formed from vinyl chloride-vinyl acetate copolymer, talc, cresyl diphenyl phosphate, pentaerythritol and finely-divided metal silicate.
Patent GB-225791-A (GB)
Title: Improvements in corsets
IPC: A41C1/00
Filed: 1924-07-17
Abstract: 225,791. Weil, J. A. April 2, 1924, [Convention date]. Corsets.-A corset, made wholly of elastic material in the form of a band laced at the back is provided at the front with an opening 2, preferably shaped as shown in Fig. 1, and with stiffeners 27 which extend from the top of the garment to a position 25 well above the opening 2. The laces pass through eyelets 46, Fig. 7, arranged between pairs of stiffeners 51, 52, which are arranged in pockets. One of each pair of stiffeners is shorter than the other to facilitate flexing of the garment. Sock suspenders 9 are attached to reinforced tabs on the corset.
Patent GB-717552-A (GB)
Title: Improvements relating to the control of electrically driven conveyors
Inventor: SHAW SAMUEL ELIJAH
IPC: H02P25/18
Filed: 1952-07-08
Abstract: 717,552. Control of A.C. motors; controllers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 22, 1953 [July 8, 1952], No. 17226/52. Class 38(3) An electric motor 1 is supplied with intermittent alternating-current through a contactor 2 the coil 3 of which is connected in series with commutators 6, 6<SP>1</SP>. continuously driven by a pilot motor 12. The commutators have fixed brushes 8, 8<SP>1</SP>, and adjustable brushes 9, 9<SP>1</SP>, which are intercoupled for joint control. The commutators are connected in parallel and have their conductive segments 7, 7<SP>1</SP>, diametrically opposite so that the commutators conduct alternately as they rotate. In the position snown, the brushes are set for minimum supply to the motor 1. By rotating the brushes 9, 9<SP>1</SP>. anti-clockwise the control circuit will be completed or longer periods during each revolution of the commutator. The commutator assembly may comprise two or more commutators and associated brushes ccnnected in series in the-control circuit and rotated in synchronism so that the control circuit is only completed when all the commutators and brushes are conducting. The motor 1 drives a conveyer for loose materials such as a chain grate stoker for a steam boiler furnace.