baber/WOPTO huggingface dataset:
Patent GB-1370102-A (GB)
Title: Tubular reactors for production of polyethylene
IPC: C08F10/00
Filed: 1971-10-11
Abstract: 1370102 Polymerisation apparatus ESSO RESEARCH & ENG CO 11 Oct 1971 8867/74 Divided out of 1370101 Heading B1X A tubular reactor for producing polyethylene comprises at least three tube means 55, 56, 58 having internal diameters within the range 0.5 to 3.0 inches, interconnected in series to provide a main inlet and a main outlet, each successive tube having a diameter different from that of the one next preceding it, the first tube means 55 having an internal diameter of 0.5 to 2.5 inches, the second tube means 56 having a larger diameter than the first, the third tube means 58 having an internal diameter at least that of the first tube means, the interconnection between the tube means serving as main outlet for the first tube means and main inlet for the second and main outlet for the second tube means and main inlet for the third, and the first and third tube means also having additional inlet means 54, 59 near their main inlet ends. The second tube means may be provided with an intermediate side inlet 57. In a further embodiment the reactor may comprise at least five tubes the first three of successively larger internal diameter, the fourth tube having a diameter at least that of the second tube and less than the third, and the fifth tube having a larger diameter than the fourth, the first, second and fourth tubes also having further inlet means near their inlet ends, and the second and fourth tubes optionally having intermediate side inlets.
Patent GB-184428-A (GB)
Title: An improved method of attaching door-handles to their handle-bars
IPC: E05B3/10
Filed: 1922-03-28
Abstract: 184,428. Harding, H. B. March 28, 1922. Knobs and handles, attaching.-A knob or handle H, Fig. 3, carries a bolt B in a recess H<1>. The bolt, Fig. 2, has a flat part P sliding between the legs L of a forked spindle S. When a nut N on the bolt is tightened, the bolt is clamped to the spindle, so that the handle is secured owing to the fact that the nut and bolt head project into a recess into it. This enables the handle to be secured at any point along the fork of the spindle without straining the handle or forcing apart the legs of the spindle fork.
Patent GB-872475-A (GB)
Title: Improvements relating to the detection of sudden speed changes
Inventor: WILSON GEORGE HERBERT
IPC: G01N33/36
Filed: 1958-03-20
Abstract: 872,475. Detecting predetermined speeds; testing tensile strength. COURTAULDS Ltd. March 19, 1959 [March 20, 1958], No. 8914/58. Classes 106 (2) and 106 (3). The breaking of a yarn tensioned between a stationary clamp and a moving clamp 2 is detected as follows : a cup-shaped shroud 5 is threaded on a cable 4 which moves from left to right at a predetermined speed greater than that of the clamp 2 before the yarn breaks. A spring-loaded friction pad 7 provides a slipping drive between the cable 4 and shroud 5. Shroud 5 is thus forced up against clamp 2, preventing light from a lamp 1 reaching photo-electric cell 3. When the yarn breaks, the clamp 2 accelerates past the predetermined speed away from the shroud 15 so that cell 3 is activated by lamp 1 to produce a signal. By reversing the relative positions of the shroud and clamp, it is possible to use the mechanism to detect reductions in velocity.
Patent GB-723671-A (GB)
Title: Method and apparatus for the dosed delivery of gas quantities
IPC: C02F1/76
Filed: 1952-04-08
Abstract: 723,671. Purifying water. AKT.-GES. FUER GRUNDWASSERBAUTEN. April 8. 1952. [April 13, 1951] No. 8921/52. Class 46. [Also in Groups II, VI and XXVIII] In a method for the dosed delivery of gas, more particularly at a low rate, a fixed quantity of gas is admitted into an expansion chamber by each single operation of a periodically operating valve in the gas supply line, the expanded gas being continuously withdrawn from the expansion space at a rate depending upon the pressure in the expansion space, this pressure varying with the number of operations of the valve per unit of time. In a water purifying apparatus, water to which a small proportion of chlorine is to be added, flows through a water meter 7, Fig. 2, by which means an electric solenoid 5 is energized periodically at a rate proportional to the rate of flow of the water. Chlorine enters through a connection 27 Fig. 1, and is periodically delivered in dosed quantities into an expansion space 16 by a measured quantities delivery valve 3 which is operated by the solenoid 5, a pressure of chlorine gas being thereby built up in the expansion space 16 in proportion to the rate of flow of water. The valve 3 comprises an actuating spindle 4 carrying two valve discs 9 and 10 at opposite ends of a cylindrical member 15, the discs being arranged to alternately engage knife edges 11, 12 on a flange 14 of the valve housing, the space between the flange 14 and cylinder 15 forming a measuring space for a quantity of gas which is delivered into the space 16 at each single operation of the valve. A proportion of the water flows through an injector 19 having a gas inlet 17 which communicates with the space 16 and the rate of delivery of gas from the space 16 through the inlet 17 into the water is proportional to the pressure in the space 16. The portion of the water which passes through the injector 19 is mixed' with the rest of the water in an injector 25. In a modification, Fig. 4 (not shown), the valve which supplies gas to the space 16 comprises a single obturating member cooperating with a seating, the valve being opened by the solenoid for predetermined constant periods, at a rate proportional to the rate of water flow. The method is applicable to narcosis for which purpose the solenoid 5 may be controlled manually or in dependence upon the number of breaths of the patient.
Patent GB-115937-A (GB)
Title: Improvements in and relating to the Lowering of Life Boats from Ships.
Inventor: BRAY EMIL RAYNER
IPC: B63B23/18
Filed: 1917-06-21
Abstract: 115,937. Bray, E. R. June 21, 1917. Boat - lowering gear. - A boat-lowering cradle of the kind provided with wheels engaging rails down the side of the ship has the upper pair of wheels mounted at the ends of arms adjustable in length to compensate for any list of the ship. The cradle comprises a channel-iron keel-piece with upturned ends 1<a> riveted to a transverse member 4 and side members 3. The side members are connected to the keel-piece by a number of ribs 2, while one of the end ribs 3<c> is extended to form a support arm 6, strengthened by a bracket bearing against a similar rib 3b. The transverse members 4 are connected to members 4a by sleeves 17 having left and right handed internal threads adapted to be adjusted from the boat by handles 20. The members 4a, 6 are provided with swivelling yokes 7 carrying wheels 9 adapted to engage the underside of rails 12 attached to the side of the ship. Lowering-gear 22 is fitted, and the cradle is provided with catches to hold the boat in position.
Patent GB-341343-A (GB)
Title: Improvements in or relating to protective devices for connection with electric supply lines
IPC: H01R31/00
Filed: 1930-03-21
Abstract: 341,343. Couplings. BRITISH EQUIPMENT CO., Ltd., Relton Works, Cheval Place, Brompton Road, London.-(Assignees of British Equipment Soc. Anon. ; 46, Chaussee de Waterloo, Brussels.) March 21, 1930, No. 9098. Convention date, March 22, 1929. [Class 38 (i).] A protective device for insertion between a supply main and a delivery line comprises an insulating block 2 with plug pins 2a secured by a screw 3k to a block 3 having sockets 3a ; connection is established between the plugs and sockets by cartridgefuses 4, mounted in chambers formed by recesses 2b, 3b in the blocks, which are clamped between contacts 2p, 3p mounted respectively on plug pins 2a and sockets 3a.
Patent GB-633724-A (GB)
Title: Improvements in or relating to processes for preparing alkyl aryl ketones and the improved alkyl aryl ketones resulting therefrom
IPC: C07C45/46
Filed: 1947-04-03
Abstract: Alkyl aryl ketones are prepared by reacting an aliphatic acid and an aromatic compound, having as a substituent an alkyl, cycloalkyl or alkoxy radical, in the presence of phosphorus pentoxide in the disperse phase.  The reaction may be carried out with or without heating in the presence or absence of solvents and under pressure or vacuum.  The invention is illustrated by 12 examples of which the first is typical, as follows: m-xylene and acetic acid are refluxed with phosphorus pentoxide for two hours. The organic layer is separated and distilled under reduced pressure to give 2 : 4-dimethyl acetophenone and dimethyl diacetyl benzene.  Other examples use toluene, cyclohexyl benzene, tert-butyl benzene, anisole, phenetole, and mesitylene as the aromatic components and acetic, propionic, and stearic acids as the acid components.
Patent GB-512819-A (GB)
Title: Improvements in automatically-acting relief valves
IPC: F01L13/00
Filed: 1938-03-25
Abstract: 512,819. Relief valves, LAMB, J. March 25, 1938, No. 9187. [Class 135] A relief valve particularly adapted for use in the starting-air systems of Diesel and similar internal-combustion engines is adapted to open widely to relieve abnormal pressure and return automatically to its closed position when the said pressure has been removed. In the form shown in Fig. 1 the valve comprises a piston part a subject to inlet pressure admitted through a conduit b and a larger disc part d normally engaging a chamfered seat m. The part d is loaded by a light spring r and by fluid pressure admitted through a restricted orifice p. When the inlet pressure becomes excessive the valve part d is moved off its seat allowing the loading pressure to escape to atmosphere through ports n so permitting the inlet pressure to move the valve rapidly to its full open position. The excess pressure escapes through the ports k and when reduced to normal the spring r reseats the disc valve and allows loading pressure to build up in the chamber g. A projection s on the valve co-operates with a recess t to cushion the opening movement. In a modification the valve member is formed with a recess adapted to work over a hollow ported boss. The loading fluid is led to the interior of the boss and the ports are so arranged that the supply is interrupted when the valve moves to its open position. In the form shown in Fig. 4, which is adapted to serve as a bye-passing relief valve for a pump, a similar arrangement of ported boss s<2> and recess t<2> is used. The hollow piston is formed with a pair of spaced chamfered flanges w, d' adapted to engage seats on the casing when the valve is used, the flange w being provided to prevent the escape of pressure fluid from the outlet conduit v. When the valve a<1> is lifted from its seat by abnormal pressure the flange d<1> also moves away from its seat to vent the loading pressure through the port n<1>. The valve a' may be opened under manual control by closing the cock p<2> and opening the drain cock x.
Patent GB-257524-A (GB)
Title: Improvements in the mounting and fixing of side or similar screens on vehicles
IPC: B60J1/14
Filed: 1926-04-08
Abstract: 257,524. Alvis Car & Engineering Co., Ltd., and Clarke, G. T. Smith-. April 8,1926. Wind and like screens.-In a side or similar screen 2 for a vehicle securing means comprise a longitudinally split hollow-stem 6 adapted to engage a fixed socket 15, the stem being adapted to be expanded by. the pointed end 11 of a rod 9 which is screwed into the stem. The socket 15 is sunk into a fixed part of the vehicle and is expanded at its lower end 18 to secure it.
Patent GB-399208-A (GB)
Title: A method for the impregnation of organic aggregates for plastic masses
IPC: C08L95/00
Filed: 1932-03-31
Abstract: Organic aggregates such as wood, straw, reeds, cork, peat, &c are treated first with an aqueous emulsion of bituminous &c. materials mixed with calcium hydrate, and then with a pulverized hydraulic binding-medium, such as a mixture of silicates, some of which are preferably in water-soluble form, e.g. as sodium silicate.  The silicate binder may be stirred in with or blown on to the surface of the bitumen impregnated fibres.  The resistance of the material to fungi and insects is increased by the addition of suitable metal salts.  Mineral fillers such as asbestos increase the fire-resisting qualities of the product and may be added in quantities up to 20 per cent.  By varying the quantities of the ingredients a material of a stone, horn, or wood-like character may be obtained.  In an example 12 litres of bitumen emulsion containing 60 per cent pure bitumen and 8 litres of calcium hydrate are diluted with 80 litres of water and applied to the organic material.  A mixture of 40 per cent soda silicate and 60 per cent of a silicate of the type of trass is blown on to the mass in a quantity equal to the amount of bitumen emulsion and calcium hydroxide previously added.
Patent GB-121141-A (GB)
Title: Improvements in Process of Recovering Proteids from Vegetable Proteid Containing Material for use in the Industrial Arts.
Inventor: SATOW SADAKICHI
Filed: 1917-06-28
Abstract: 121,141. Satow, S. June 28, 1917. Albumens are extracted in a pure and undenatured condition from soya bean and other vegetable materials by crushing the raw material, removing oil therefrom by a solvent, then removing the solvent by a vacuum or by air at a low temperature, then extracting the albumens by means of water, alkali or salt solution, or other non-alcoholic liquid which will not denature the albumens, removing colloidal &c. impurities from the extract until a transparent clear solution is obtained, and finally precipitating the albumens from the clear solution. The removal of impurities from the extract may be effected by first passing the extract through a centrifugal separator and then filtering and fractionally precipitating the liquid by adding a little sulphuric or sulphorous acid, allowing to stand, decanting, and filtering; another method consists in carefully precipitating the albumens together with impurities by an acid (sulphuric or acetic), decanting, redissolving the albumens in dilute sulphurous or hydrochloric acid, and filtering. The wet albumens may be finally dried in vacuo, and are suitable for use in the manufacture of plastic materials &c.
Patent GB-1032286-A (GB)
Title: Brush support for sweeping and cleaning machines
IPC: A46B13/00
Filed: 1963-03-08
Abstract: 1,032,286. Rotary brushes. KOLDING STAALBORSTEFABRIK. March 8, 1963 [March 12, 1962], No. 9293/63. Heading A4K. In a rotary road sweeping brush having brush rings detachably mounted on a shaft, the shaft is of hollow polygonal tubular form and is provided with rigid end plates 10 having stub shafts 17. The shaft may be made from three or four flat strips 2, 3, 4 welded to one another along their adjacent edges and to thicker gauge end plates 6, 7. Alternatively, angle section strips may be used and may be welded to one another to produce a square section shaft or to a flat strip to produce a triangular section shaft. End plates 10 of cast steel are attached to end plates 6, 7 by bolts engaging nuts 13. A drive sprocket may be secured to one end of the shaft by sandwiching it between the end plates. Notches 14 permit the brush rings to be slid over the end plate 6 or 7 into position on the flanges 21. The rings are keyed for rotation with the shaft by engagement of an inwardly directed tooth with flanges 21.
Patent GB-180137-A (GB)
Title: Improvements in and relating to automobile radiators
IPC: F28D1/053
Filed: 1921-03-29
Abstract: 180,137. Berman, S. March 29, 1921. Radiators, motor-car. - Upper and lower auxiliary tanks 13, communicating with the main reservoirs 10, 10<x> through apertures 12, are secured in! position by lateral projections 13<d>, 13<x>, carried by the front and rear walls of each tank 13 through which bolts 14 pass. Between each pair of tanks flat tubes 17 extend and between the tubes grids 18 are secured. Each grid is preferably formed from a bent sheet metal plate and the shape is kept by comb like insertions 22. The front edges of the tubes 17 are recessed at 17<a> to accommodate projections 18<a> on the grids. The grids and radiator core are additionally secured by a moulding 23 secured by pins 24.
Patent GB-141070-A (GB)
Title: Improvements in slicers
IPC: B26D1/25
Filed: 1920-04-01
Abstract: 141,070. Melerski, J. Feb. 28, 1919, [Convention date]. Cutting slices in succession.-In a fixed-knife slicer, vegetables are placed in a receptacle capable of sliding in grooves 16 in plates 10, and are acted on by a cutter 15. A hand-operated plunger 20 presses the vegetables downwards. The receptacle is reciprocated by hand and the thickness of the slices is varied by a plate 25 having an upstanding guard portion 26. The plate 25 is mounted on a pivot 27, Fig. 3, which is capable of being moved along a slot 28, thereby obtaining angular and linear adjustment. The adjustment is constructed to leave the top plate 25 as an unbroken line.
Patent GB-477601-A (GB)
Title: Toy electric motor or generator
IPC: A63H29/22
Filed: 1936-03-30
Abstract: 477,601. Dynamo electric machines. LATOUR, M. March 30, 1936, No. 9415. Void. Convention date, March 29, 1935. [Class 35] The magnetic circuit of a toy motor or generator is constituted by interchangeable platelike members and magnets if desired so that the machine may function with different voltages. Fig. 4 shows a magnet system constructed of two kinds of magnetic steel plates A, B, the four magnets being in series. In Fig. 5, permanent magnets K are used in conjunction with plates A, B, one of the plates B being nonmagnetic. Several other arrangements are described employing permanent magnets and electromagnets.
Patent GB-351470-A (GB)
Title: Improvements in or relating to electro-magnetic sound reproducers
IPC: H04R9/06
Filed: 1930-03-25
Abstract: 351,470. Sound-reproducing devices. GREENWOOD, M. and GREENWOOD, G. E., 15, Toller Drive, Bradford, Yorkshire. March 25, 1930, No. 9463. [Class 40 (iv).] In a sound-reproducing apparatus such as a loudspeaker, gramophone pickup, &c., for converting variable electric currents into acoustic vibrations or vice versa and of the kind in which the oscillating member is constituted, as the case may be, by the primary or secondary winding of a transformer, the winding is disposed in an independent magnetic field and moves as a whole with the diaphragm or like associated parts. In the loud-speaker unit shown, the moving element S connected to the diaphragm B consists of a closed circuit of a single turn forming the secondary of the transformer T and moves in the air gap A between two magnets M energized by coils C, while the speech currents traverse the primary winding P. The secondary S is suspended by means of strips E of foil &c. from an ebonite or similar bar E<1> carried by the magnet supports, while the air gap can be varied by means of adjustable spacing rods D connecting bars R which support the magnets. Specification 194,424, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-398923-A (GB)
Title: Improvements in or relating to fireproof shutters
IPC: A62C2/16
Filed: 1932-04-02
Abstract: 398,923. Releasing fireproof shutters. POLLARD & CO., Ltd., E. and POLLARD, H. E., 159, St. John Street, London. April 2, 1932, Nos. 9542 and 34041. [Class 47 (ii).] A fireproof roller-shutter of the spring- counterbalanced type is closed by a weight when the latter is released by the fusion of a fusible link, the weight being dislodged automatically during the final closing movement of the shutter. The weight C normally is supported by a bell-crank lever D retained by a cord E and fusible link E<1>. When the link melts, the weight falls and is guided by a guideway G and pin F on to the bottom rail A of the shutter, where its weight closes the shutters. When the latter is nearly closed, a surface H on the guideway G engages a projection C<2> on the weight to remove the latter from the shutter. In a modification, the weight is in the form of a bar pivoted at one end and supported at the other by the fusible link. When the latter melts, the bar swings down and engages the lower rail of the shutter. In modifications of this latter arrangement, suitable for long, narrow shutters, the bar is in two hinged parts. When the bar is released, one part first engages the rail of the shutter, and, subsequently, the second part turns about a fulcrum to engage the rail.
Patent GB-921643-A (GB)
Title: Improvements in and relating to remote control systems
IPC: B66C13/40
Filed: 1961-03-15
Abstract: 921,643. Electric selective signalling systems. H. TAX. March 15, 1961 [April 20, 1960], No. 9557/61. Class 40 (1). [Also in Group XL (c)] In a system for remotely controlling a crane, selection of one of carrier-frequency generators G 1 - G n  determines the controlled function, e.g. the slewing of the jib, and the continuously adjustable phase of a modulating signal from generator G B  represents an associated control order, e.g. to determine the speed of a motor. Each generator G 1 -G n  has an associated modulator M 1 -M n  and phase-shifter P 1 -P n . Generator G n+1  and modulator M n+  1  serves to transmit a reference phase to phase comparators C 1 -C n  through filter F n+1  and demodulator D n+1 . A filter F 1 -F n  is provided for each carrier-frequency, the associated relay R 1 - R n  energizing a motor A 1 -A n  when the associated carrier-frequency is received. Demodulator D 1 -D n  retrieves the modulating signal and supplies it to the phase comparator C 1 -C n , the output shaft of which adjusts the shunt resistance of the motor.
Patent GB-165242-A (GB)
Title: Splash guards for motor vehicles and the like
IPC: B62D25/18
Filed: 1920-04-06
Abstract: 165,242. Goyder, E. April 6, 1920. Lateral-splash guards.-A flexible lateral-splash guard 2, Figs. 1 and 2, of leather, rubber, &c. for vehicle wheels is normally held in a bent or buckled state (as shown in Fig. 2) by two or more tension springs 5, in order to assist the return of the guard to its normal shape and position after it has been deflected by an obstruction. The guard is suspended from the axles or axle caps by a sheet-metal plate 4, either rigidly by screws passing through the axle caps, or with the interposition of ball bearings when suspended from a revolving part of the axle or wheel, the guard then being under the control of a spring or gravity. The guard may be provided with a rearward extension carrying an additional splashguard behind the road wheel.
Patent GB-1101844-A (GB)
Title: Compositions containing a plant growth regulant
Inventor: BARNSLEY GEOFFREY EDWIN
IPC: C05F11/10
Filed: 1966-03-04
Abstract: Ungerminated seeds or plants in which fruit formation has commenced are treated with dormin (3 - methyl - 5 - (1 - hydroxy - 4 - oxo-2,6,6 - trimethyl - 2 - cyclohexen - 1 - yl) 2,4-pentadienoic acid) as a powder, granules, solution or emulsion.  A solid carrier may be clay, resin, or wax.  A liquid carrier may be water, dimethyl sulphoxide, acetone/water, or N-methyl-pyrrolidone/methylcyclohexanone.ALSO:Germination of seeds is delayed by treatment with dormin (3-methyl-5-(1-hydroxy-4-oxo-2, 6, 6-trimethyl-2-cyclohexen-1-yl) 2, 4-pentadienoic acid).  A composition may contain up to 20%, by weight, of dormin and 0.5% (based on the weight of seeds) may be applied.  It may also contain china clay and a surface active agent.  The preparation of dormin is described in Specification 1,073,882.ALSO:Dormin (3-methyl-5-(1-hydroxy-4-oxo-2,6,6-trimethyl - 2 - cyclohexen - 1 - yl)2,4 - pentadienoic acid) is employed as a selective herbicide which is rapidly destroyed in the soil and does not harm ungerminated seeds.  It may be employed in the form of powder, granules, solution or emulsion.  A solid carrier may be clay, resin, or wax.  A liquid carrier may be water, dimethyl sulphoxide, acetone/water, or N-methyl-pyrrolidone / methylcyclohexanone.  The preparation of Dormin is described in Specification 1,073,882.