baber/WOPTO huggingface dataset:
Patent GB-1218147-A (GB)
Title: Segment copolymers of 1,3-dienes and aromatic vinyl compounds
IPC: C08F236/10
Filed: 1969-04-09
Abstract: 1,218,147. Block copolymerization in a screw extruder. FARBENFABRIKEN BAYER AG. 9 April, 1969 [25 April, 1968], No. 18075/69. Heading C3P. A process for the continuous solvent-free production of block copolymers comprises feeding a 1,3-diolefin and a vinyl aromatic compound, together with an organolithium compound, into a self-cleaning two-shaft or multiple-shaft, screw extruder, setting the temperature therein to 50‹ to 150‹ C., polymerizing the monomers and extruding the resulting polymer from the screw extruder. In examples, styrene-butadiene or styrene-isoprene mixtures are polymerized using an n-butyl lithium initiator, in some cases with the monomers initially mixed and in others with the monomers mixed within and part way along the extruder, and the polymers treated with stearic acid and ionene to terminate the reaction and stabilize the product. Diagrams of suitable apparatus are given.
Patent GB-1099956-A (GB)
Title: Process for preparing unsaturated sulphonates
IPC: C11D1/12
Filed: 1965-04-29
Abstract: Unsaturated sulphonates are obtained by reacting a d -sultone of the formula <FORM:1099956/C2/1> wherein R is a hydrocarbon radical which may be substituted, with an alcoholate or with compounds or mixtures forming an alcoholate in situ or containing an alcoholate in equilibrium with other components.  The reaction is preferably effected by at least partially dissolving the d -sultone, preferably in a C2- 4 saturated alcohol corresponding to the alcoholate used, and adding the alcoholate, preferably derived from a C1- 4 alcohol, in equimolar amounts at temperatures between room temperature and the boiling temperature of the alcohol used.  In a preferred method, the sultone is dissolved in ethanol, which is preferably anhydrous, and solid alkali metal hydroxide is added. The amount of alcohol added should be such that the major part of the unsaturated sulphonate fomred separates immediately and any alkoxy sulphonate which may have been formed remains dissolved. Subsequent to the addition of alkali the reaction mixture is boiled under reflux or alternatively the reaction may be effected by heating in an autoclave under pressure.
Patent GB-572575-A (GB)
Title: Improvements in and relating to the preparation of oil resisting rubbers
IPC: C08C19/00
Filed: 1940-12-24
Abstract: Oil-resistant rubber is prepared by treating oxygenated derivatives of rubber so as to form linkages between the molecules either by vulcanization or by heating so as to cause the evolution of water. The derivatives are formed by treating rubber either with (1) oxygen in presence of acetic anhydride or acetic acid to which an oxidation catalyst such as cobalt nitrate or linoleate may be added, and hydrolysing the product to replace ester groups by hydroxyl groups; (2) lead tetracetate or lead p  tetrabenzoate, the product being afterwards hydrolysed; or (3) a per-acid such as perbenzoic or monoperphthalic acid. Specifications 417,912 and 462,627 are referred to.
Patent GB-642493-A (GB)
Title: Windows
IPC: E06B3/44
Filed: 1948-07-06
Abstract: 642,493. Windows; draught excluders. WEATHERSTONE, A. July 6, 1948, No. 18189. [Class 20(iii)] In windows of the type comprising upper and lower sashes 10, 11 with bare sides sliding in guides attached to the frame and with a pair of balancing springs 35, 45, housed in separate channels 9 formed in the guides, the springs are disposed between the base of the channel and the edge of the sash, their upper ends being anchored to the upper part of the guides and their lower ends to the lower part of the sash. On an enlarged head 16 of the central wall 12 of the guide a flexible metal weatherstrip element 17 is screwed with side portions 19 bearing against the glass; the frictional resistance may be adjusted at different points along the length of the element by pressure of a tool T on one or other side of a fulcrum rib 22 so as to bend portion 19 inwardly or outwardly. Each sash has top and bottom rails, the bottom rails having an inverted channel in which is housed the inner end of spring anchoring lugs 34, 43. The lower sash bottom rail has a lifting flange 42.
Patent GB-1224377-A (GB)
Title: Improvements in or relating to the treatment of yarns, threads or like continuous strands
IPC: D01D10/04
Filed: 1968-04-17
Abstract: 1,224,377. Treating yarn. HEBERLAIN & CO. A.G. 17 April, 1968 [21 April, 1967], No. 18217/68. Heading D1F The temperature or moisture content of a running yarn is affected by leading the yarn over a plurality of guides 22 spaced within a duct along the strand path and subjecting the strand at least over its length between the guides 22 to a transverse gas flow to cause the yarn between the guides to oscillate. The strand oscillations may be at 20 kc/s in a direction transverse to the gas flow. The gas flow can be made turbulent by a vane 28 or bar (32) placed immediately upstream of the yarn path.
Patent GB-150498-A (GB)
Title: Improvements in or relating to hats and the like
IPC: A42C5/04
Filed: 1919-07-22
Abstract: 150,498. Stone, W. July 22, 1919. Helmets; ventilating. -Hats, especially sun helmets, are ventilated by connecting the leather 5 with the crown by means of rigid intermediary links 5, which are pivotally connected on one side to short strips 6 attached to the leather 5 by studs or fasteners 7, and on the other side to longer strips 10 attached by studs &c. 11 to the crown. The links and strips are preferably made of aluminium.
Patent GB-1004699-A (GB)
Title: Magnetically operated diaphragm valve
IPC: F16K31/40
Filed: 1962-05-11
Abstract: 1,004,699. Valves. W. HOLYER. May 11, 1962 [May 26, 1961; Feb. 21, 1962], No. 18288/62. Heading F2V. A diaphragm valve is controlled by an electromagnetically operated pilot valve which controls the pressure difference across the diaphragm and has a tapered throttling extension. In the first example, Fig. 1, the diaphragm valve 2 which has a circular series of apertures 9 divides the housing 1 into two chambers 3 and 4 the latter of which has an inlet 5 and an outlet 10. The pilot valve which controls the central diaphragm aperture 11 is formed by the conical end of an armature of an electromagnet 14. A dashpot formed by a spring-loaded piston 20 in a cylinder 18 connected to the chamber 3 absorbs pressure pulses therein. In another example the dashpot comprises a compressible member of foam material located in the chamber 3. In Fig. 3, the pilot valve has a sealing surface 24 and a graduated throttling extension 25. The extension 25 may comprise a separate spring-loaded element.
Patent GB-941426-A (GB)
Title: Telephone dial illumination arrangement
IPC: F21V33/00
Filed: 1960-05-25
Abstract: 941,426. Telephone sets. WESTERN ELECTRIC CO. Inc. May 25, 1960 [June 11, 1959], No. 18456/60. Heading H4J. [Also in Division F4] An arrangement for illuminating a telephone dial comprises a transparent number plate and a light transmitting member having a planar portion adjacent the number plate and a depending skirt surrounding the periphery and having a cut-out portion in which the light source is located, the surface of the cut-out portion between the planar portion and the light source being bevelled so as to reflect a substantial portion of the light directed towards the planar portion, the remaining surfaces of the cut-out portion being such as to provide substantially unrestricted light paths around the periphery of the skirt portion. Fig. 1 shows a handset comprising an oval base 11 having end steps 12, 13 with switchback plungers on which the end caps 14, 15 of the instrument rest. The dial 25 covers a transparent number plate 30 on which indicia are engraved. Below this is a disc 36, Fig. 4, of light transmitting material having a depending skirt 34 with a cut-out in which the lamp 31 is mounted. The skirt 34 has a bevel 39 above the lamp so that part of the light is reflected, thereby reducing the light entering the skirt at this point, while light enters the ends 33 of the skirt freely. The skirt has a flange 42 with a ring gasket 50 interposed between this and the underside of the central part 23 of the base 11. The light from the skirt is reflected at a bevelled surface 41 to illuminate the disc 36 below which is a disc 47 of white plastic. The dial 25 may be transparent.
Patent GB-275406-A (GB)
Title: Improvements in and connected with steam driven winding and hauling machinery
IPC: B66D1/08
Filed: 1926-07-23
Abstract: 275,406. Babcock & Wilcox, Ltd., and Brown, A. Hall-. July 23, 1926. Gearing for stopping and starting machinery. - In steam-driven winding machinery, the drum 2 is connected to the shaft by a clutch put in and out of operation by endwise movement of a sliding sleeve 20, which is actuated by spring- fulcrumed levers connected by links to screw-and-nut gearing rotated through worm gearing by an electromotor 12 controlled from a distance. A brake band 16 is actuated by a lever 17, Fig. 1 , connected to the piston 17<a> of a vacuum cylinder 18. A steam ejector 19 on the steam main produces the necessary vacuum. The brake operating lever is actuated from a distance. An indicator shows by means of two lamps when the winding drum clutch is in and out. The current supply to these lamps is governed by contacts on the clutch operating screw.
Patent GB-1157870-A (GB)
Title: A Speech Scrambling Device
Inventor: PEARSON KENNETH WILLIAM
IPC: H04K1/00
Filed: 1967-04-21
Abstract: 1,157,870. Speech scrambling device. STANDARD TELEPHONES & CABLES Ltd. 17 April, 1968 [21 April, 1967], No. 18474/67. Heading H4R. Speech signal is scrambled by encoding it in digital form, enciphering the digital signal, decoding the digital signal, and transmitting the resulting analogue signal. At the receiver the analogue signal is encoded in digital form, the digital signal deciphered by the inverse of the ciphering process, and the digital signal decoded to reproduce the original speech signal. The speech may be encoded into a p.c.m. signal by the vibrational compounding coder of Specification 1,135,684. The digital signals may be enciphered by adding binary samples obtained from a voice frequency quasi random waveform, by interchanging the digits in a predetermined manner, or by inverting predetermined digits. The enciphering system may be changed periodically. The transmitter and receiver may require synchronization to ensure that the analogue wave at the receiver is sampled at the correct instants.
Patent GB-828264-A (GB)
Title: Improvements in or relating to the manufacture of polyamides
IPC: C08G69/00
Filed: 1957-06-12
Abstract: A polyamide composition comprises at least one polyamide made from ingredients containing an excess of acid component over the amine component and at least one polyamide made from ingredients containing an excess of the amine component over the acid component.  With o -aminocarboxylic acid polyamides, one of the polymers is made with the addition of an appropriate amount of a dicarboxylic acid prior to polymerization and the other with addition of an appropriate amount of a diamine.  Branching agents, e.g. trimesic acid, may be used in the preparation of the polyamides.  In the examples: (1) a polyamide made from excess sebacic acid and hexamethylene diamine is blended in chip form with a similar polyamide made using excess of the diamine, the resultant mixture being melted and spun into yarn; (2) polyamides made from excess adipic acid and hexamethylene diamine are blended in chip form with similar polyamides made from excess of the diamine, the mixtures being melted and spun into yarn; (3) a polyamide made from caprolactam and adipic acid is blended with a polyamide made from caprolactam and hexamethylene diamine, the molten blend being heated and quenched; (4) a polyamide made from excess sebacic acid and hexamethylene diamine is blended in chip form with a similar polyamide made from excess diamine, the product being dried and injection moulded.
Patent GB-146451-A (GB)
Title: Improvements in circular knitting machines having bearded needles
IPC: D04B15/28
Filed: 1920-07-03
Abstract: 146,451. Hemphill Co., (Assignees of Bosworth, G. P.). May 5, 1916, [Convention date]. Circular machines.-Relates to improvements' in the pressing and associated mechanism of rotary-cylinder machines having a separate presser bit 3 for each sliding spring beard needle. The bits 3 are pivotally mounted in a support or cage 8, which drops in a recess 12 of the webholder bed 2 and allows the bits to be removed or adjusted as a whole. Individual bits requiring replacement &c. can be drawn out against the pressure of a spring band 3<c> without disturbing the rest. The upper-beard-engaging parts of the bits 3 are bevelled as shown, and the pressing surface may be grooved at 3<a>. The presser cams 10 are mounted on a web-holder cam-ring 4<a>, and are moved in and out of action in alternation at each reversal during heel and toe work, to prevent the cams 10 from fouling the yarn as it swings over from one position to the other. This movement of the cams 10 is obtained from the cam-ring 4a, which at each reversal swings through a distance determined by the stops 5, and thus releases the controlling-lever 18 of one cam 10 from contact with the yarn-guide bracket 17, and brings the control lever of the other cam 10 against a corresponding arm 17<a> or vice-versa. The released cam 10 is pushed away by the action of the spring band 3<c>. Should the bracket 17 be lifted both cams 10 are released, and the danger of the work being accidentally pressed off at this time is thus obviated.
Patent GB-113425-A (GB)
Title: Improvements in Cleaners for Water Tube Boilers.
Inventor: HANDOLL PERCY GILBERT
IPC: F28G3/16
Filed: 1917-12-13
Abstract: 113,425. Handoll, P. G. Dec. 13, 1917. Cleaning, fluid-pressure processes for.-In boilers having water tubes spaced apart, a steam blower device is arranged to move longitudinally and to rotate automatically when steam is admitted. In the construction shown in Fig. 1, the blower tube a has near its outer end a piston b working in a cylinder c. On admitting steam through the opening a the tube is pushed back into the position shown until the steam passing through the leak valve p pushes the piston and tube forward again. At the same time, the tube is rotated by the pin f which engages in the slot e. A projecting rod may be provided for moving the tube when the steam is off. In the modification shown in Fig. 2, the pins fare car. ried by the tube a and work in inclined slots on the barrel e. The leak to the back of the piston takes place through a small aperture v in the plug, and can be adjusted by the rod s and tube r.
Patent GB-1371188-A (GB)
Title: Gas wafer treatments
IPC: H01L23/31
Filed: 1973-04-18
Abstract: 1371188 Gallium arsenite coating INTERNATIONAL BUSINESS MACHINES CORP 18 April 1973 [1 May 1972] 18590/73 Heading C1A [Also in Divisions B6 and H1] Gallium arsenide wafers are given a protective coating of gallium arsenite by reacting the polished surface of the wafer with an aqueous solution of sodium oxychloride having a concentration of between 0À4 and 1À6 N. The protective film may be removed by reacting it with an aqueous solution of sodium oxychloride and sodium carbonate, the Na2CO3 concentration being greater than that of the NaOCI, but the concentrations in the solution being 0À7 to 2 N with respect to both compounds.
Patent GB-237298-A (GB)
Title: A new or improved process of producing printing blocks
IPC: G03F1/54
Filed: 1925-07-21
Abstract: 237,298. Christeller, E. July 21, 1924, [Convention date]. Photo-mechanical printing-surfaces. - A process for making printing surfaces for reproducing transparent thin cut or ground sections such as of physiological or biological specimens, consists in using the specimens themselves directly for the production of the block. Screen negatives, either for monochrome or multi-colour reproduction, can be made by an enlarging camera or photo-micrographic apparatus. In the case of specimens of normal size a negative may be made by contact printing and the negative used for making the block.
Patent GB-967307-A (GB)
Title: Dyeing or printing olefin polymers
IPC: D06P1/52
Filed: 1963-05-10
Abstract: Polyolefin material is dyed with vat dyes by impregnating the material with a dispersion of the vat dye or with the leuco form of the dye, the impregnation is followed by a heat treatment at 120 DEG C. or above, reduction of the non-leuco vat dye is then carried out, and the dyeing completed by oxidation and soaping at the boil.  The oxidation and soaping may be carried out in the same bath.  Materials specifically referred to are the polymers of ethylene, propylene and methylpentene-(1).  Conventional levelling, dispersing and thickening agents may be used.  The impregnation is preferably carried out at 10-60 DEG C. and the thermal treatment at 120-125 DEG C., hydrogen peroxide preferably being used as oxidising agent: Vat dyes of the anthraquinone, indigo, thio-indigo, carbazole, benzanthrone, and anthanthrone types are referred to.
Patent GB-1419295-A (GB)
Title: Centrifugal separators epoxy exterior coating for lap-seam beverage cans
IPC: F15B21/041
Filed: 1973-04-18
Abstract: 1419295 Centrifugal separator SPERRY RAND CORP 18 April 1973 [4 May 1972] 18648/73 Heading B2P A centrifugal separator for removing contaminant particles from a fluid, e.g. oil, comprises a cylindrical casing 10 having two terminal passages 16, 18 forming an inlet at one end an an outlet at the other end, a cylindrical rotor 14 journalled in the casing, a turbine 56 disposed in the casing adjacent one end thereof for driving the rotor, a centrifugal pump 52 disposed in the casing adjacent the other end thereof, the turbine and the pump being connected respectively to the terminal passages at the respective ends of the casing, the rotor having axial flow-passages 54 interconnecting the pump and the turbine, and a contaminant particle trap 40 forming the radially outer walls of the axial flow-passages. The casing has a lower head 20 secured to a supporting bracket 22 and a top cover 28 secured to a flange 26 of the tubular wall 24 of the casing by means of a clamping band 30. The rotor 14 is freely rotatable on a stationary shaft 12 having hollow end portions communicating with the terminal passages 16, 18 and with a nozzle fitting 32 carried by the shaft and radial passages 34 provided in the shaft. The trap 40 consists of a cylindrical body of porous material, e.g. a roll of scrim, mounted. in the rotor between its tubular wall 14 and a hollow core member 44. The pump 52 is of the outward flow type and is formed by curved passages which receive flow from the nozzle fitting 32 in a spiral direction. The turbine 56 is of the inward flow type consisting of grooves in the top surface of the core member 44. In operation, contaminated fluid entering the inlet passage 16 flows into the nozzle fitting 32 and is directed into a whirling spiral flow to the inlet of the pump 52 where rotational energy in the rotor is recovered to raise fluid pressure and produce flow through the axial passages 54. Contaminant particles are driven by centrifugal force from the fluid into the trap 40 where they are held. The clean fluid enters the turbine 52, where the velocity energy of the fluid is converted into a rotational force upon the core member 44, and flows through the passages 34 and the outlet passage 18.
Patent GB-516383-A (GB)
Title: Improvements in apparatus for neutralising static electrical charges carried by travelling webs, threads or the like
IPC: H05F3/04
Filed: 1938-06-24
Abstract: 516,383. Discharging static electricity. CHADFIELD, C. R. A. June 24. 1938, No. 18793. [Class 35] Static electric charges carried by travelling webs or threads 7 such as photographic films, silk or rubber threads during manufacture are neutralized by discharges from discharge points 19 carried by copper or brass rods 18, 18a these being charged with static electricity of opposite sign from two rotors. The rotors consist of brass rods 2, 2a carried by insulating end discs 1, which are mounted on shafts 3, connected so that they rotate in the same direction. Pairs of arms 11, 12 on each shaft form through brushes 13 earthing contacts for the rods 2, 2a; further brushes 15, 15a connect these rods to discharge rods 18, 18a and brushes 14, 14a are connected to insulated tubes 9. 9a similar to tubes 8, 8a which are opposite the rotors at the point of contact of one set of the brushes 13. The tubes 8a and 9 are connected together. The tube 8 is charged with electricity from a static machine such as described in Specification 516 384, or by the web 7 in which case the speed of the rotor is such that the rods 2 move at a greater speed than the web when they are opposite the web. The charge on the web or tube 8 induces a charge of opposite sign on the rods 2 they being earthed when opposite the tube. Through the brush 14 the tube 8a is charged and this in turn charges the rods 2a. The brushes 15, 15a collect charges of opposite sign for the points 19.
Patent GB-146960-A (GB)
Title: Means for indicating the position of a ship
IPC: G01S1/02
Filed: 1920-07-06
Abstract: 146,960. Siemens & Halske Akt.-Ges. Jan. 26, 1916, [Convention date]. Leakage signalling.- Currents of different frequencies are supplied by generators FM1, FM2, FM3 to a loop a, b laid in the fairway, and are transferred by tuned couplings T to pairs of electrodes e1, e2. Pairs of electrodes eb3, eb4, es3, es4 on the port and starboard sides of a ship are connected to correspondinglytuned telephones Hb1, &c. The ship is able to tell its position from the frequency picked up and the relative intensity of the sounds in the port and starboard instruments.
Patent GB-1511294-A (GB)
Title: Tyre pressure monitoring apparatus
IPC: B60C23/04
Filed: 1975-05-06
Abstract: 1511294 Tyre pressure indicators E F HANSRUEDI 6 May 1975 18886/75 Heading B7C Deflation, to a predetermined value of a tyre which is in communication with chamber 13 via a duct 21 or 22 will result in piston 3 being moved towards one end of cylinder 11 by a spring 4, which movement in turn causes the actuation of an alarm. The piston is sealingly connected to one end of a bellows and the other end of the bellows is sealingly connected to the cylinder. Preferably two tyres intercommunicate via ducts 21, 22 and chamber 13 when their pressures are normal. The intercommunication is prevented by seal 12 when the pressure in one of the tyres drops to the predetermined value. The tyres may be inflated via inflation valve 2. The predetermined value may be varied by means of screw 20. The alarm may comprise a lamp 16 or a transmitter 17 which transmits a signal via aerial 19 to a receiver in the driver's cab of a vehicle or off the vehicle, e.g. at a filling station. Preferably cylinder 11 is of aluminium or other non-magnetic or non-ferrous material, and bellows 18 is of stainless steel, and rod 8 is of plastics.