baber/WOPTO huggingface dataset:
Patent GB-771926-A (GB)
Title: Graft copolymers
Inventor: RIPLEY-DUGGAN BASIL ALEXANDER
IPC: C08F8/00
Filed: 1954-06-12
Abstract: Graft copolymers are prepared by heating a polymerizable cyclic ether in a substantially anhydrous medium containing a hydroxyalkylated polystyrene with an alkali metal oxide, hydroxide, hydride or alkoxide catalyst.  The cyclic ether, which must be capable of polymerizing by opening the ring under the influence of a basic catalyst, may be ethylene oxide, mono-substituted derivatives, e.g. propylene oxide, 1,2-epoxybutane, 1,2-epoxybutene and trimethylene oxide and less reactive compounds such as phenylethylene oxide.  The hydroxyalkylated polystyrenes contain alcoholic hydroxyl groups obtained by forming b  or g -hydroxyl-alkyl esters from the free carboxylic acid groups in a copolymer of styrene and an unsaturated carboxylic acid, e.g. acrylic, methacrylic, cinnamic and maleic acids consisting of chains of 10 to 100 polymerized styrene units per free carboxylic acid and preferably prepared by reacting the copolymer in an anhydrous solvent with one to three molar proportions of cyclic ether with a basic catalyst, e.g. pyridine, as described in Specification 771,569.  The graft copolymers are prepared at elevated temperature, preferably 100-160 DEG  C., and pressure, in solvents such as benzene or toluene, and the products recovered by distilling off the solvent and extracting with water.  In a preferred preparation formation of the hydroxy-alkylated polystyrene and the graft copolymerization take place in successive stages using first a weakly basic catalyst, e.g. a tertiary amine, and then adding a strongly basic catalyst with the polymerizable cyclic ether present in at least a fourfold excess.  Alternatively the two catalysts may be used in admixture.  The products may be used as coatings, laminate adhesives, antistatic agents for polystyrene, applied to the surface or incorporated in the moulding, or may be cross-linked with di-isocyanates, e.g. 2,4-tolylene diisocyanate, to give elastic products suitable for foils and films.
Patent GB-201006-A (GB)
Title: Process of making road paving material
IPC: C08L95/00
Filed: 1922-06-23
Abstract: 201,006. Claxton, J. E. June 23, 1922. Compositions containing bituminous materials and india-rubber for road-paving, grouting, and spraying are made by mixing with 1 gallon of boiling gas tar either 1-4 oz. of plantation rubber, 1-8 oz. of scrap vulcanized rubber, or <1>/6-<2>/3 pint of rubber latex.
Patent GB-1387822-A (GB)
Title: Travelling stand
IPC: B60P3/00
Filed: 1971-05-27
Abstract: 1387822 Spectator stand mountable on a vehicle roof; convertible vehicles M G HANKEY 8 May 1972 [27 May 1971] 17359/71 Headings B7J and B7B A travelling spectator stand securable to the roof of a car, van or like vehicle, comprises a rectangular framework 3, 3 (not shown), 4, 5 supporting a deck 2 (e.g. plywood), means 7, 9, 7, 9, at each side of the framework for securing the latter to roof drain gutters 10 of a vehicle, legs 22 pivotally mounted at each corner of the framework supporting transverse support rails 24, 24 and a support rail 26, against or on which rails persons when standing on the deck can lean, the legs 22 and rail 26 being foldable and stowable respectively, Fig. 3 (not shown), when the stand is mounted on the roof and is not required for use, thereby to reduce its overall height. The framework members are formed of square-section steel tube and include two intermediate transverse members 6 in which projecting members 7 having depending portions 9 can be slidably adjustably engaged by means of clamping screws 8. The portions 9 are secured in the gutters 10 as described with reference to Fig. 2 (not shown). The support rail 26 has projections 25 to engage in the upper ends of associated square-section tubular legs 22, Fig. 4 (not shown). The legs are secured in their erected positions by pivoted struts 27. At the longitudinal side 3 of the framework, the members 7 are each provided with an upstanding peg 15 to receive inverter cup members 21 carried by brackets 17 pivotally carried by a ladder 16 whereby the latter can be attached to the stand to permit access thereto. When the stand is in its folded position, Fig. 3 (not shown), the ladder 16 is stowed under the framework. The legs 22 can alternatively or in addition if desired, be provided of telescopic constrnution whereby they can be reduced in height.
Patent GB-596462-A (GB)
Title: Improvements in or relating to wheeled frames for hoes and like tools
IPC: A01B35/02
Filed: 1945-07-09
Abstract: 596,462. Wheeled hoes. BASSETT, H. C. July 9, 1945, No. 17417. [Class 6 (i)] In a wheeled hoe a wheel 1 is mounted on an arcuate frame member 4 which has an upper movable clamping member 7 and lower clamping member 6 which hold the hoe 12. A handle bar 15 can be swung to either side of the grip 5 about the clamping member 14.
Patent GB-932230-A (GB)
Title: Vice for machine tools
IPC: B25B1/10
Filed: 1962-05-07
Abstract: 932,230. Vices. E. P. FABREGAT. May 7, 1962, No. 17476/62. Class 61. A machine vice comprises a block 4 provided with a longitudinal opening 2 at one end of which is provided an upstanding fixed jaw 4 and along which opening, a slidable body 5 is movable by an actuating screw 11 extending through a threaded bore in the body, a jaw 6 carried by the body and the body being provided on its bottom face with two pairs of laterally projecting lugs 7, 8 (not shown) slidable in guides formed in the bottom face of the block on both sides of the opening 2 and in which there are respective facing notches 10 which permit the successive passage of the lugs for the purpose of dismantling the vice. The head 12 of the actuating screw 11 has a convex surface corresponding to a recess provided in the inside wall of the end piece 3. The head has an orifice 14 in which an operating key 15 can be engaged through an opening 16 in the end piece 3. To remove the jaw 6, the said jaw is shifted to the end of its travel adjacent the end piece 3 so that the lugs 7 face the notches 10 in the guides, the entire body 5 is rocked, causing the lugs 7 to pass through the notches; the lugs 8 (not shown) will pass through the notches on withdrawal of the assembly.
Patent GB-695514-A (GB)
Title: Improvements in or relating to polishing compositions
Filed: 1951-07-24
Abstract: An emulsion furniture polish comprises from 2 to 15 per cent of a hydrocarbon-soluble organopolysiloxane having from 1 to 3 hydrocarbon radicals per silicon atom, the radicals being alkyl, aryl or aralkyl or any combination thereof, from 10 to 45 per cent of a hydrocarbon solvent boiling between 50 DEG  and 300 DEG  C., from 0.5 to 3 per cent of aluminium-monostearate and/or -distearate and from 37 to 87.5 per cent of water, the percentages being by weight.  The polysiloxanes specified contain methyl, ethyl, propyl, octadecyl, phenyl, tolyl, chlorophenyl, xenyl or benzyl radicals.  Solvents specified are naphthol mineral spirits, Stoddard solvent, white gasoline and kerosene.  Waxes, such as bees, carnauba, paraffin, ceresine, candelilla, esparto and montan, may be incorporated in the polishes, preferably in amount not more than 10 per cent of the composition.  Other substances that may be added are perfumes, dyes, anti-slip compounds, and aluminium-borate and -sulphate.  Examples are given, in one (example 11) of which a trimethylsilyl substituted silica, prepared according to the process of Specification 682,574, [Group IV (b)], is incorporated in the emulsion.
Patent GB-1067092-A (GB)
Title: Improvements relating to pipe joints
IPC: F16B7/04
Filed: 1964-04-28
Abstract: 1,067,092. Pipe couplings. STEWARTS & LLOYDS OF NEW ZEALAND Ltd. April 28, 1964 [May 1, 1963], No. 17553/64. Heading F2G. In a spigot and socket pipe or tube joint for use in tubular constructions such as scaffolding, gates and supports, longitudinal, raised sharpedged fins are provided on either the socket or the spigot for engagement with the respective complementary member whereby minor irregularities in the mating spigot and socket faces or latitudinal variations in the spigot and socket may be accommodated. In the embodiment of Fig. 7, sharp-edged fins of triangular crosssection are equally-spaced around the periphery of the spigot member 1 and taper longitudinally towards the end thereof. The spigot member is of softer material, preferably cast aluminium alloy, than that of the pipe end 3 forming the socket such that, on forcible insertion, the leading edge of the pipe will bite into the fins and form a tight joint. Said joint may be secured by a radially-slotted flat or dished member 9 attached to the spigot and arranged to resiliently engage the socket wall. Alternatively, the securement may be formed by either a pin or rivet passing laterally through the joint, Fig. 5 (not shown), or by a member screw-threaded to the pipe wall and arranged to bear on the spigot, Fig. 6 (not shown). In the embodiment of Fig. 11 (not shown), the fins are formed on the pipe socket, said socket being of softer material than the complementary spigot. The pipes may be of non-circular cross-section and the spigot may be solid or hollow. By suitably forming the spigot, angled, T- and similar joints may be constructed.
Patent GB-776498-A (GB)
Title: Improvements in or relating to electromechanical transducers
IPC: B06B1/06
Filed: 1955-06-17
Abstract: 776,498. Pieao-electric instruments. WESTERN ELECTRIC CO., Inc. June 17, 1955 [June 21, 1954], No. 17555/55. Class 40 (4). [Also in Group XL (b)] The transducing efficiency of a polarized ceramic element which includes a principal component of ferroelectric crystalline material characterized by a perovskite lattice structure is increased by applying pressure to the element in a direction normal to the direction of polarization. The pressure may be applied hydraulically to a stack of barium titanate discs 11 mounted between a pair of acoustically-sensitive diaphragms 27, 28 in a fluid-tight steel cylinder 24. A radial pressure of between 5000 and 10,000 lbs./sq. inch is maintained by means of a fluid introduced through the pipe 21. The discs are provided with silver electrodes which are connected alternately to an insulated terminal 22 and to the cylinder 24. To polarize the elements a voltage of about 25 v. per 0.001 inch thickness is applied across terminals 22, 23 as the unit is cooled to room temperature from a temperature just above the Curie point. Acoustic signals applied to the diaphragms 27, 28 produce an electrical output across the terminals 22, 23.
Patent GB-431012-A (GB)
Title: Improvements in rubber mixing or preparing machines
IPC: B29B7/18
Filed: 1934-06-14
Abstract: 431,012. Rubber-preparing machines. COOKE, R. T., and SHAW & CO., Ltd., F., Corbett Street Ironworks, Bradford, Manchester. June 14, 1934, No. 17566. [Class 70] [See also Group II] Rubber-preparing machinery, e.g. for milling and kneading rubber, comprises two or more rollers having raised portions of comparatively large area, these portions and the bodies proper of the rollers being substantially concentric with the roller axes and the portions on one roller passing through the hollows left by the raised portions of the other roller. The raised portions may be one-fifth to one-seventh of the body diameter in height. As shown the raised portions c, g and k are of spiral formation, two identical rollers being placed in reverse order end to end. The scroll c which has tapered walls extends half-way round the roller and has a reverse curve f which reverses the direction of travel of the rubber. The scroll g has a similar reverse curve i.
Patent GB-866633-A (GB)
Title: Suspension means for washing machines or the like
IPC: D06F37/22
Filed: 1959-05-25
Abstract: 866,633. Washing-machines. LADEN S.A. May 25, 1959 [May 23, 1958], No. 17667/59. Class 138 (2). [Also in Group XIII] A rotary drum 15 of a washing and/or spindrying machine is mounted for oscillation about a shaft 22 carried by a frame 1 which is capable of limited rolling motion on a base member 4. The frame 1 has arcuate runners (as 2) of large radius mounted in grooves (as 3) in the base 4. Springs 12 encircling bolts 7 fixed to the base 4 resiliently hold the frame in its centred position. Fig. 5 shows the connections between the drum housing 20, shaft 22 and frame 1. 26 is an annular rubber ring, and 33 is a bushing rotatably carried in a ring 34 carried by the frame 1.
Patent GB-381908-A (GB)
Title: Improvements in and relating to electric dry batteries
IPC: H01M4/12
Filed: 1932-06-22
Abstract: 381,908. Galvanic batteries. GROOVE, E., 17, B³dericherstrasse, Neusson-Rhine, Germany. June 22, 1932, No. 17669. Convention date, June 22, 1931. [Class 53.] Zinc containers for dry batteries are coated with lead on the outside. They may be made from lead-coated zinc bands by stamping or cutting out the walls and bottoms separately and soldering them together, or discs may be stamped from the bands and seamless containers made by drawing or rolling. Waste metal may be melted down to separate the zinc and lead which can be used again.
Patent GB-478813-A (GB)
Title: Improvements in or relating to electron multiplier arrangements
IPC: H01J43/20
Filed: 1936-06-25
Abstract: 478,813. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. June 25, 1936, No. 17693. [Classes 39 (i) and 40 (v)] In a multiplier of the type having a series of coplanar secondary emission electrodes and an opposed series of coplanar electrostatic field electrodes and having in use a magnetic field parallel to the electrode planes and perpendicular to the direction of movement of the electrons, alternate secondary emission electrodes are connected together, and each field electrode is connected to the secondary emission electrode next following its own opposed electrode. As shown, the field electrodes P<1>1, P<1>2 ..., P16 are connected to the secondary electrodes P2 ..., P7, the field electrode P<1>7 is connected to the secondary electrodes P2, P4, P6 and to the lead L2, and the cathode P1 and secondary electrodes P3, P5 and P7 are connected to the lead L1. The connections may be internal. A high-frequency voltage S is applied between the leads L1 and L2, and the frequency is such that the time of flight of an electron from P1 to P2 is one half-period. The cathode P1 may be photo-electric or thermionic.
Patent GB-955585-A (GB)
Title: Apparatus for degassing molten metal
IPC: F27B5/04
Filed: 1962-05-09
Abstract: Apparatus for degassing molten metal and adding alloying or refining agents thereto comprises (see Fig. 1) a degassing vessel 10, e.g. having a metal shell 15 with refractory lining 16 and a nozzle 20 extending from its lower end into a movable ladle 11 below for drawing molten metal 12 for degassing into the chamber 19 of the vessel, associated with evacuating apparatus 24, and a hermetically sealed hopper 38 for supplying the agents mounted adjacent to and interconnected with the vessel, e.g. via pipe 41. The hopper is divided (see Fig. 2) into a main compartment 54 and a plurality of smaller auxiliary compartments 55 (of which three are shown), which are volumetrically interrelated according to a geometric progression which increases by a factor of two, and means are provided external to the hopper for selectively discharging the contents of the auxiliary compartments 55 into the main compartment 54 without unsealing the vessel.  Such means may be control mechanisms 65 which open gates 64 in each of the compartments 55. <PICT:0955585/C3/1> <PICT:0955585/C3/2>
Patent GB-725404-A (GB)
Title: Improvements in mixtures of gum plastics and polyvinyl acetal resins
IPC: C08L29/14
Filed: 1953-06-29
Abstract: A gum-plastic mixture comprises 5-15 per cent polyisobutylene or butyl rubber and 95-85 per cent of a polyvinyl acetal of at least 75 per cent ester replacement.  Specified acetates are polyvinyl formal and butyral.  The mixtures may be used to make gears, cams, bobbins, shuttles, pickers, tote boxes, phonograph records, steering wheels, roller skate wheels, printing plates and die-cutting blocks.
Patent GB-943780-A (GB)
Title: Improvements in railway vehicle wheel detectors for railway signalling
Inventor: JEAN JUTIER
IPC: B61L1/10
Filed: 1962-05-10
Abstract: 943,780. Wheel detectors. ETABLISSEMENTS SAXBY. May 10, 1962 [May 10, 1961], No. 17984/62. Heading B7N. [Also in Division G1] A wheel detector, for a railway signalling system, comprising a transistor oscillator circuit 1 with main and feedback windings 5, 7, respectively, wound on a saturable magnetic ring 2, a third winding 16 on the ring connected to the input of a transistor amplifier, a signalling relay 18 connected via a rectifying circuit 28 to the amplifier output and a permanent magnet which in normal operation saturates the ring and prevents circuit 1 oscillating. The detector is positioned adjacent a rail of the track so that a wheel in passing the detector diverts the permanent magnet flux so that the ring desaturates, the circuit oscillates and the signalling relay is energized to record the passage of a wheel. In a second arrangement, Fig. 2 (not shown), the ring is normally not saturated and the relay is energized. The passage of a wheel is recorded when its presence saturates the ring, stops the circuit oscillating and releases the relay.
Patent GB-530288-A (GB)
Title: Folding hoods for motor-vehicles
IPC: B60J7/12
Filed: 1939-06-21
Abstract: 530,288. Valves, &c. MOTOR STATE PRODUCTS CO. June 21, 1939, No. 18041. Convention date, Dec. 12, 1938. [Class 135] [Also in Group XXXII] A multiple way valve for controlling a vacuum operated cylinder for raising and lowering a vehicle hood consists of a rotatable disc 53 with a partitioned recess 54 pressed into contact with a surface in connection with vacuum conduits 42, 44 &c. A conduit 45 connects with the atmosphere. The disc is operated by a handle 51 which has a spindle 50 provided with a rimmed boss 50a.
Patent GB-282125-A (GB)
Title: Improvements in or relating to two-stroke cycle internal combustion engines
IPC: F01B7/14
Filed: 1926-07-19
Abstract: 282,125. Law, C. July 19, 1926. Two-stroke-cycle engines: driving-gear. - In engines with two pistons working with a common combustion chamber, two sets of inlet transfer and exhaust ports are provided each piston controlling one set.. The pistons, as shown in Fig. 1 drive on to two crank shafts a, b and are so set that at the time of ignition the piston f is 45‹ beyond its inner dead centre and the piston f<1> 45‹ behind the dead centre; as a consequence the pistons move together for a part of the cycle and in opposite directions for the remainder. The two shafts as shown are connected by a chain to rotate in the same direction, but they may rotate in opposite directions in which case the angles of advance and retardation with respect to the time of ignition are 75‹ and 15‹ respectively. The piston f controls the inlet l for air to the crank casa and the transfer and exhaust ports k<2>, n; the piston f<1> controls the mixture admission port m to the crank case j<1> and the transfer and exhaust ports k<3>, n<1>. If desired mixture may also be supplied from the crank case j. In a modification having two cylinders h<1>, h<2>, Fig. 2 with their axes parallel to a shaft p between them, the four piston f, f<1> driving the shaft through two swash plates a<2>, a<3> set at an angle to one another, the ends of the cylinders remote from the combustion chambers are closed and used as the pre-compression chambers for air and mixture. The ports are controlled as described with reference to Fig. 1.
Patent GB-395153-A (GB)
Title: Improvements in or relating to mercurial pressure gauges
IPC: G01L7/18
Filed: 1932-06-27
Abstract: 395,153. Liquid-level gauges. COSSOR, F., Accoson Works, Vale Road, Finsbury Park, London. June 27, 1932, No. 18123. [Class 106 (ii).] A U-tube gauge using mercury as indicating liquid is provided with a valve between the cistern and the indicating tube. The invention is described as applied to a sphygmomanometer. The U-tube and cistern are affixed to the back of a hinged cover which is folded down when the instrument is not in use as the mercury oxide which forms on top of the mercury is apt to soil the tube. The cistern a is formed with a recessed part b to receive the end of the tube c which abuts against a cork washer d at the perforated bottom of the recess, and communicates with the cistern through the narrow passage f. The bottom of the cistern has a screwed recess in which is secured by a plug j against a flange g a leather washer h. The latter carries a conical valve k adapted to close the aperture in the bottom of the receptacle. The stem passes through an aperture in the plug j and through an aperture in a bowed spring o the ends of which slide in slotted guides in the bottom of the receptacle. A nut r serves as an abutment for the spring. A leaf spring w is mounted on the end wall v of the casing and when the lid s is closed down the end of the stem n engages the spring w to close the valve k and tension the spring e which opens the valve when the lid is opened.
Patent GB-638798-A (GB)
Title: Improvements in or relating to hinges
IPC: E05D5/14
Filed: 1948-07-06
Abstract: 638,798. Hinges. PRESSED STEEL CO., Ltd., and MORPHEW, L. R. July 6, 1948, No. 18126. [Class 65 (ii)] In a hinge of the self-aligning type, particularly for vehicle doors, the hinge leaves 11, 12 are pivoted on bushes 17, 20, drilled eccentrically and held in engagement with a common bearing ball or the like 23, by the pin 24, the bushes being independently rotatable. The bushes are adjustable by means of collars 19, 22 and may be locked by set-screws 31, 32.
Patent GB-129720-A (GB)
Title: Improvements in and relating to Annealing Process and Apparatus.
Inventor: TOPLEY ALEC FREDERIC
IPC: C21D9/00
Filed: 1917-12-07
Abstract: 129,720. Topley, A. F., Ractliffe, G. and Adams, H. E. F. Goold-. Dec. 7 1917. Anncaling furnaces.-A furnace for annealing metal strip comprises a number of vertical tubes or " retorts " mounted in combustion flues c to which gas and air are admitted from flues a, b through damper-controlled passages d. The lower ends of the retorts dip into water or other liquid h, and part of the steam produced passes up the retorts to furnish a non-oxidizing atmos phere for the annealing operation.
Patent GB-485132-A (GB)
Title: Improvements in television
IPC: H04N5/06
Filed: 1936-11-16
Abstract: 485,132. Television transmitters. RADIOAKT.-GES. D. S. LOEWE. Nov. 16, 1936, No. 18215/37. Convention date, Nov. 18, 1935. Divided out of 485,119. [Class 40 (iii)] Synchronizing signals are derived by applying the deflecting potential to an amplitude filter 12 biassed to conduct just at the end of a line. The impulses are preferably taken from transformer 14, rectified at 15, and mixed with the picture signals. Alternatively they may be used to suppress the aerial current. Where magnetic deflection is used, the amplitude filter is connected in parallel to the deflecting coils or to a resistance in series with the coils.