baber/WOPTO huggingface dataset:
Patent GB-218013-A (GB)
Title: Improvements relating to stroboscopic apparatus
IPC: G01R35/06
Filed: 1923-03-29
Abstract: 218,013. Elverson, A. J. H., and Kennedy & Co., Ltd., H. March 29, 1923. Vibrations, indicating. - Apparatus for detecting noises due to periodic action in machinery comprises a stroboscopic flashing device combined with an electrical system, which includes a telephone receiver and transmitter and is sensitive to light being so arranged that sound collected by the transmitter will become audible at the receiver only during the momentary period of the light flashes; heat or other equivalent form of energy may be used instead of light to control the electric circuit. In the arrangement shown the transmitter T is in the primary circuit of a transformer I, the secondary of which is connected to the ends of a Wheatstone bridge with the receiver R placed across it. Normally the bridge is balanced so that no sound is heard, but a selenium cell C has its resistance reduced by the flashes from a kamp L controlled by the stroboscopic contact device S so that the balance is temporarily disturbed and any current passing through the bridge causes the receiver to sound. The phase of the flashes may be varied as by a creeper gear in the contact device S.
Patent GB-109035-A (GB)
Title: Improvements in Plunger Packings.
Inventor: ESNAULT-PELTERIE ROBERT
IPC: F16J15/28
Filed: 1917-06-22
Abstract: 109,035. Pelterie, R. Esnault-. March 14, 1917, [Convention date]. Addition to 107,760. Packing, metallic.-In the plunger packing described in the parent Specification, in which metal washers a - - d graded in softness are employed, the washers are made of V- section. The softest washer a may be of triangular section as shown, and the washers may be welded together.
Patent GB-565335-A (GB)
Title: Improvements in or relating to the production of concrete of high crushing strength and very rapid hardening and concrete bodies produced thereby
IPC: C04B40/00
Filed: 1942-07-02
Abstract: Concrete of high crushing strength and which hardens rapidly is prepared by vibrating, e.g. at more than 5000 vibrations per minute, so as to make plastic, a concrete mix which has insufficient water to give plasticity without vibrating.  The whole mix and/or the finer constituents may be vibrated.  The vibrations may be transmitted pneumatically, or through a movable part of the vessel which contains the mix &c., or, in a continuous process a pipe containing the mix may be vibrated.  Reference has been directed by the Comptroller to Specifications 282,039, [Class 87 (ii)], 328,030, [Class 22], 352,676; 468,841 and 485,727, [both in Group II].
Patent GB-808666-A (GB)
Title: Assembly for use in a transport container and plate for holding spun yarns wound on to frusto-conical tubes
IPC: B65D71/70
Filed: 1956-03-23
Abstract: 808,666. Packing textile cops. BEMBERG A. G., J. P. March 23, 1956 [March 24, 1955], No. 9179/56. Class 18. The frustro-conical tubes of textile cops are located in a container by sheets having depressions on one side forming corresponding protuberances on the other, the protuberances fitting within the base of the tubes and the tube tops being accommodated in the depressions. The protuberances and depressions are so shaped that the maximum and minimum dimensions are obtained without undue thickness of sheet e.g. by being of square, triangular or, as shown, irregular outline. The sheets may be of cardboard, plastic or metal and may have only one protuberance, as shown. The protuberances may have central apertures for ventilation.
Patent GB-123670-A (GB)
Title: Improvements in and relating to Latches for Doors and the like.
Inventor: BERDINNER GEORGE LEACH
IPC: E05C1/12
Filed: 1918-06-05
Abstract: 123,670. Berdinner, G. L. June 5, 1918. Latches, lift and thumb. -The actuating lever f of the ordinary lift latch a is operated by a handle j pivoted to the door and provided with a roller r engaging the end of the lever. The latch is lifted by pulling the handle, and the door opened by a continuation of the movement. Pins t on a. link s attached to the handle serve as a guide and stop. On the outside of the door, the usual thumb piece on the lever f may be provided or a pivoted handle n connected as shown to an extension of the lever.
Patent GB-561498-A (GB)
Title: The manufacture of moulded articles
IPC: C04B14/02
Filed: 1942-07-07
Abstract: Coal is comminuted until at least 30 per cent thereof by weight has a particle size not exceeding 10m  and is then moulded under high pressure at a temperature which lies between the temperature at which the coal begins to soften and that at which it ceases to be plastic, and lies below the temperature of onset of intumescence.  In general, the pressure may be 250-600 atmospheres, and the temperature 345-375 DEG  C., different coals requiring different treatment.  The temperature of onset of intumescence may be raised (a) by adding to the coal an absorbent filler which assimilates the volatiles, e.g. powdered coke, powdered anthracite coal, colloidal silica or colloidal alumina; or (b) by pressing the coal relatively lightly (50-150 atmospheres) whilst the coal is being heated to the moulding temperature (e.g. 345-375 DEG  C.) and then subjecting it, at the moulding temperature, to the full moulding pressure (e.g. 300-450 atmospheres).  During moulding, the pressure may be lowered at least once, to release gases.  Prior to moulding, the coal may be "de-gassed" by heating at subatmospheric pressure and at a temperature below the moulding temperature range.  The mould may be heated electrically or by the vapour of an organic liquid.  The coal may contain fillers, e.g. asbestos fibre or powder, powdered alumina, powdered aluminium, powdered coke or electrode carbon, powdered ferro-silicon, quartz meal, steel filings or fine steel wool.  The filler may be such that at least 30 per cent by weight does not exceed 10m  in particle size.  The coal, with or without filler, may be compressed into preforms at atmospheric temperature before moulding.
Patent GB-319800-A (GB)
Title: Improvements in or relating to mine props
IPC: E21D15/36
Filed: 1928-03-28
Abstract: 319,800. International Processes, Ltd., and Ryner, A. March 28, 1928. Mine props.-Relates to a mine prop of the type formed of two section-bars with faces in contact and maintained frictionally engaged by means of an oscillatory double-armed clamp pivotally mounted on one section-bar and carrying a block at one end and a rotatable eccentric cam at the other which increases the friction between the surfaces on yielding. To increase, the adjustability of the friction, the block is replaced by a wedge m which bears against the outer face of the fixed member of the prop and against a cross bolt k<1> of the clamp. The wedge may have its rear face hollow, as shown in Fig. 3, and two eccentric cams r may be used at the other end of the clamp. In a further modification, the wedge may be provided with rollers u at its contacting points and may bear against, a cross roller v disposed across the end of the clamp, the eccentric cam t also being mounted on a roller w disposed at the other end of the clamp. In order to fix the parts of the props relatively to each other, a series of holes is provided in each, spaced at different distances to furnish a vernier adjustment.
Patent GB-927893-A (GB)
Title: Improvements in or relating to aqueous dispersions of vinyl acetate polymers
Inventor: THOMAS THOMAS JOHN
IPC: C08F18/08
Filed: 1959-03-18
Abstract: A process for the production of polymers of vinyl acetate comprises subjecting vinyl acetate, or a mixture of vinyl acetate with another monomer copolymerizable therewith containing at least 50% by weight of vinyl acetate, to aqueous emulsion polymerization in the presence, as stabilizer for the emulsion, of an ammonium or alkali metal salt of the condensation product of a long chain acid halide containing at least 12 carbon atoms and an unsubstituted or N-substituted aminoalkyl sulphonic acid, the total amount of stabilizer and other water-soluble solids being at most 3% based on the total weight of monomer.  Specified acid halides are lauryl, palmityl, stearyl and oleyl chlorides.  The preferred aminoalkyl sulphonic acids are taurine and N-methyl taurine.  Polymerization may be effected in the presence of catalysts, e.g. potassium persulphate, and redox systems, e.g. hydrogen peroxide and ferrous sulphate, optionally in the presence of buffers, e.g. sodium bicarbonate.  The monomer may be added continuously or incrementally throughout the polymerization. Examples describe the use of the sodium salt of N-oleyl-N-methyl taurine in the polymerization of (I to III) vinyl acetate and (IV) in the copolymerization of vinyl acetate and ethyl acrylate.  The products may be used in paints, adhesives and textile sizes, and examples describe paints comprising titanium dioxide and (I) polyvinyl acetate and dibutylphthalate and (IV) a copolymer of vinyl acetate and ethyl acrylate.
Patent GB-776209-A (GB)
Title: An improved brake magnet for electricity meters
IPC: G01R11/10
Filed: 1955-04-01
Abstract: 776,209. Eddy-current brakes. LANDIS & GYR AKT.-GES. April 1, 1955 [April 3, 1954], No. 9606/55. Class 35. A disc meter braking magnet system comprises two U-shaped permanent magnets 1, 2 sintered to a non-magnetic carrier 6 and arranged to define two air gaps 3, 4 for the passage of the disc. Alternatively, one of the permanent magnets may be replaced by a piece of ferromagnetic material 10 as in Fig. 2.
Patent GB-787227-A (GB)
Title: Improvements in spraying nozzles for hoses
IPC: B05B1/00
Filed: 1956-03-28
Abstract: 787,227. Nozzles. SCHATT GES., ARMATURENFABRIK, J. S. March 28,1956 [May 11, 1955], No. 9662/56. Class 69 (3). A socket a receives a liquid supply hose and includes a liquid duct c tapering towards an eccentric outlet d in a head portion b on which is rotatably mounted a cover cap e with an eccentric orifice h and an eccentric disc i. By turning the cap either the orifice h or the disc i may be brought into coincidence with the outlet d. The socket and cap are of synthetic plastic material, e.g. polyethylene, and a stuffing- box k which is attached to the cap may also be of synthetic plastic material. If the cap and socket are of material of different hardness, the disc may be formed integral with the cap; otherwise the disc is of a material of less hardness and is injection moulded into the cap.
Patent GB-618433-A (GB)
Title: Improvements in sterilising detergent compositions
IPC: C11D3/48
Filed: 1946-03-28
Abstract: A cleansing composition having bactericidal properties, which in aqueous solution is of low surface tension yet produces an unstable foam, comprises an alkaline detergent other than a silicate containing detergent and 0.5-5 per cent of a water-soluble or water-miscible alkyl quaternary ammonium halide or hydroxide whereof two of the alkyl groups each have not less than 6 nor more than 9 carbon atoms in the chain and the other two alkyl groups each have not more than than three carbon atoms in the chain.  N-hexyl, N-heptyl, N-propyl, N-methyl ammonium hydroxide and N :N-dioctyl, N :N-dimethyl ammonium bromide are preferred quarternary compounds and weak alkalies such as sodium carbonate or trisodium phosphate are suitable alkaline detergents.  0.25-2 per cent of the composition is used in aqueous solution at a temperature not exceeding 65 DEG  C. The Provisional Specification describes also the use of alkali silicates as the alkaline detergent and gives examples in which sodium metasilicate is used.ALSO:A sterilizing detergent composition which in aqueous solution is of low surface tension yet produces an unstable foam comprises an alkaline detergent other than a silicate containing detergent and 0.5 - 5 per cent of a water-soluble or water-miscible alkyl quaternary ammonium halide or hydroxide whereof two of the alkyl groups each have not less than 6 nor more than 9 carbon atoms in the chain and the other two alkyl groups each have not more than three carbon atoms in the chain. N-hexyl-Nheptyl-N-propyl-N-methyl ammonium hydroxide and N-N-dioctyl N1, N1 dimethyl ammonium bromide are preferred quaternary compounds and weak alkalies such as sodium carbonate or trisodium phosphate are suitable alkaline detergents. 0.25 - 2 per cent of the composition is used in aqueous solution at a temperature not exceeding 65 DEG  C. The Provisional Specification describes also the use of alkali silicates as the alkaline detergent and gives examples in which sodium metasilicate is used.
Patent GB-1158207-A (GB)
Title: Method of Producing Modified Aromatic Polyesters.
IPC: C09D5/25
Filed: 1967-03-01
Abstract: 1,158,207. Modified aromatic polyesters. INSTITUT ELEMENTOORGANICHESKIKA SOEDINENII AN SSSR. 1 March, 1967 [1 March, 1966], No. 9698/67. Heading C3R. Modified aromatic polyesters are prepared by condensing dicarboxylic acyl chlorides with bisphenols and hydrazine or the dihydrazides of dicarboxylic acids, or by reacting the acyl chlorides with bis-phenols to give low-molecular weight polyesters which are subsequently reacted with hydrazine or the dihydrazides of dicarboxylic acids, to obtain aromatic polyesters containing polyhydrazide units. The polymers may be heated at 250‹ to 350‹ C. to cause cyclodehydration to obtain aromatic polyesters containing poly-1,3,4-oxadiazol units. In examples polymers are obtained from 9,9-bis-(4-hydroxyphenyl) fluorene, phenolphthalein, isophthaloyl chloride, the dihydrazide of isophthalic acid and hydrazine.
Patent GB-507793-A (GB)
Title: Improvements relating to book covers
IPC: B42D3/02
Filed: 1938-03-30
Abstract: 507,793. Book covers. MORLAND & IMPEY, Ltd., and RENDALL, A. G. March 30, 1938, No. 9699. Addition to 423,856. [Classes 16 and 146 (i)] The moulded book cover described in the parent Specification is modified in that the fibrous or like layer treated with synthetic resin or the like, or each such layer, has in its initial condition a plain inner surface, or has an inner surface coated with a thin uncured rubber layer. The fibrous or like layer may comprise either a single sheet or two united sheets of fabric or paper.
Patent GB-630727-A (GB)
Title: Improvements in radio-beacon systems
IPC: G01S1/02
Filed: 1945-04-18
Abstract: 630,727. Radio navigation. ECKERSLEY, T. L., and SMITH, S. B. April 18, 1945, No. 9740. [Class 40 (vii)] An equi-phase radio-beacon system consists of two transmitting stations separated by a distance large in terms of the wavelength used and operating on a common radio frequency together with a receiving station provided with means for measuring the phase difference between the radio frequency waves received from the respective transmitters. A transmitter Ta at station A, Fig. 1, is fed by a master oscillator M0 through a keying device Ka; transmitter Tb at station B is also fed by Mo through keying device Kb, adjustable phaseshifter Pb and inter-station line L<1>. Ka and Kb are both controlled by a code sender S. At a mobile receiving station C a receiver Rc feeds indicator Ic through a calibrated variable attenuator ATc. In operation, first Ta alone transmits, then Tb alone, followed by Ta and finally both Ta and Tb transmitting simultaneously but with one of the signals reversed in phase. In each case the attenuator reading at C which brings the indicator reading to a given value is noted and from the four readings so obtained the phase difference of the received signals can be derived. An arrangement in which phase indications are more directly obtained is shown in Fig. 2, where station A is not keyed and transmits continuously at low field strength whilst station B transmits 10 dots per second with much greater power. The output of the receiver at C is fed to two filters in parallel, feeding the deflection plates of a cathode-ray tube oscillograph. One filter BPFa of narrow pass-band and long build-up time passes only A station signals, the other BPFb of wider pass-band passes both signals but owing to the difference in levels the output can be regarded as B station signals. A phase-shifter Pc between BPFp and oscillograph CRO is adjusted so that the figure on the tube collapses to a straight line and the phase difference between the two signals may then be read off on a calibrated scale. To avoid shock exciting the filter BPFa alternate dots transmitted by station B may be reversed in radio frequency phase. A phase meter may be used as an indicator in place of the cathode-ray tube and variable phase-shifter. Specification 579,346 is referred to.
Patent GB-562850-A (GB)
Title: Improved lubricating oil
IPC: C10M141/10
Filed: 1942-07-13
Abstract: 562,850. Lubricating and electrical oils. SHELL DEVELOPMENT CO. July 13, 1942, No. 9743. Convention date, Aug. 30, 1941. Drawings to Specification. [Class 91] The effectiveness of metal deactivators in lessening the oxidation of lubricating and electrical oils caused by sludge containing copper, iron, chromium, lead, and their compounds, is enhanced by incorporating a small amount of a phosphatide with the metal deactivator. The proportion of phosphatide to metal deactivator may be between 5 and 10 to 1, the preferred amounts being from .05 to 1.0 per cent of phosphatide to .01 to .15 per cent of metal deactivator.- The metal deactivators are defined as compounds capable of forming with metals chelates which ionize very little ; they are organic nitrogen-bearing compounds having a polar radicle (such as an acid-reacting group), capable of forming with metals electrovalent compounds (salts), or an amine group capable of forming metal amides, separated from an aliphatic or heterocyclic double bonded trivalent nitrogen atom by at least two carbon atoms such that the total number of atoms in the series from the nitrogen atom to the metal inclusive is 5 or 6, and include oil soluble heterocyclic nitrogen compounds such as carboxy or hydroxy pyridine, quinolines and acridines ; the reaction products of diacyl compounds and primary diamines such as diacetonyl. benzoyl ethylene diamine reaction products of aromatic ortho-hydroxy aldehydes or ketones with alkylamines and hydroxyalkylamines, such as N salicylal N' ethanol ethylene diamine and hydroxy aromatic aldoximes and ketoximes, such as o-hydroxy-naphthyl-aldoxime. The preferred phosphatide is lecithin, but kephalin and natural phosphatides, e.g. from soybeans, may be used. According to an example, a lubricating oil is mixed with 1 per cent of lecithin and 0.1 per cent of N salicylal N<1> ethanol ethylene diamine and exposed to an atmosphere of pure oxygen at 150‹ C. for several hours. Under such conditions it is found that the rate of oxygen absorption is much slower than in the case of similar tests carried out with untreated oil and with oil containing either of the addition agents singly.
Patent GB-351547-A (GB)
Title: Improvements in and connected with apparatus for the ejection of ashes from locomotives
IPC: F23J1/00
Filed: 1930-03-27
Abstract: 351,547. Ash ejectors for locomotives. STONE & CO., Ltd., J., Deptford, ATKINS 0 N, T. G., 1A, Cockspur Street, and CARROLL, W. P., 73, Clarendon Road, Lewisham, all in London. March 27, 1930, No. 9839. [Class 51 (i).) In apparatus for ejecting ashes from the smokebox of a locomotive in which the ejector sucks the ashes from the smokebox past a controllable valve, means are provided for directing scouring steam over the valve prior to it being closed to ensure tight seating and to break down the vacuum produced by the ejector. Ashes from the smokebox are drawn through the pipe a, Fig. 1, the outlet of which is controlled by a valve g operated by a piston l, into a chamber b by the steam ejector nozzle d and discharged through the outlet pipe e. The valve g is withdrawn by the piston l into a recess p out of the path of the ashes. When it is desired to withdraw ashes from the smokebox, the driver actuates by means of a hand-wheel s, Fig. 2, valves w, w<1> mounted on a spindle t to admit steam from the pipe y to the port z leading to the cylinder m containing the spring-loaded piston l for operating the valve g and to the ejector nozzle d, steam also passes to a port 2 before the valve w<1> rests upon its seat and thence to steam ports r, r<1> used for scouring purposes. Scouring of the valve however does not take place when starting the ejector, but when the valves w, w<1> are closed to shut off the ejector, a supply of steam again passes to the ports r, r<1> and effects scouring of the valve before it returns to its seat. The ash duct a rises upwardly towards the valve g and if desired may be subsequently turned downwardly. According to modified forms of the invention the valve for controlling the outlet of the pipe a may be hinged and the cylinder containing the piston may be arranged either horizontally or vertically.
Patent GB-651296-A (GB)
Title: Improvements in or relating to a header machine
IPC: B21K1/44
Filed: 1948-04-08
Abstract: 651,296. Forging-machines. WATERBURY FARREL FOUNDRY & MACHINE CO. April 8, 1948, No. 9853. Convention date, June 18, 1947. [Class 83 (iv)] A header comprises a gate 14 reciprocably mounted on a frame 10, a carrier 15 having two or more tools 16 to co-operate with a die 18 and mounted to slide transversely on the gate, a slide 41 mounted on the frame to move transversely of the gate movement and connected to a rock-shaft 50 which is mounted on the gate and is connected to the carrier 15, and means for reciprocating the gate and the slide. The main shaft 11 of a header machine reciprocates the gate 14 and rotates a shaft 24 at half-speed. The latter shaft rotates an eccentric to reciprocate the slide 41 which is connected to a pivoted gear sector 49 by a pivoted block 46 received in a slot in the slide. The gear sector 49 meshes with a gear 52 on a shaft 19 which carries an eccentric linked to 'the carrier 15. Specification 580,808 is referred to.
Patent GB-483882-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F3/22
Filed: 1937-04-07
Abstract: 483,882. Valve amplifying circuits. LORENZ AKT.-GES., C. April 7, 1937, No. 9917. Convention date, April 8, 1936. [Class 40 (v)] A rectifier D is arranged in the grid circuit of a Class B amplifier biassed to cut-off and the rectifier characteristic is such as to compensate for distortion in the amplifier. The rectifier may be gas-filled and may be a diode or grid controlled. A push-pull pair of valves may be used as the amplifier.