baber/WOPTO huggingface dataset:
Patent GB-1461330-A (GB)
Title: Pulse circuits
IPC: H03K17/30
Filed: 1974-04-16
Abstract: 1461330 Transistor switching circuits FERRANTI Ltd 10 April 1975 [16 April 1974] 16609/74 Heading H3T A high speed pulse detect-on circuit includes a Schmitt Trigger 12, a resistance capacitance circuit 13, 14 connected to an input terminal 10 and arranged to have a short discharge time when a pulse is applied to the input and a long charge time when the pulse is terminated and a second stage 15 having a reset input, an input connected to the output of the Schmitt trigger and an output connected to another input of the Schmitt trigger, the Schmitt trigger and second stage forming a bistable loop set to one stable state by an input pulse whose duration is sufficient to discharge the capacitor to the threshold of the Schmitt trigger and reset to the other stable state when a pulse is applied to the next input. As shown, a Schmitt trigger 12 is cross coupled with a NAND gate 15 to form a bistable. High speed operation of the circuit is provided by pulse stretching input-pulses fed via opencollector inverter 10 to the RC network 13, 14, The positive going edge of an input pulse causes the voltage at point b to rapidly fall, the subsequent rise after the cessation of the input signal is set by the RC time constant, and eventually triggers the bistable. Subsequent reset is provided at E. The basic circuit can be used to construct an asynchronous priority interfall, Fig. 3. One input A is connected by the bistable as described, the other, B, to a conventional cross-coupled NAND gate bistable 31, 32. To ensure that signals applied at A are given priority over those applied at B, a delay circuit 36 is provided. In the off-state gates 11 and 33 are primed to pass a signal while the lack of an output from 36 blocks the output gates 30, 34. An output at A changes the state of the first bistable 12, 15 and turns the output of gate 35 to '0' thereby blocking both inputs, after the delay period the output gates 30, 34 are primed and an output appears at X. Similarly, an output at Y results if a signal is present only at B. If inputs appear at A and Bs imultaneously both gates 15 and 32 charge together, but that on 15 blocks output gates 34 so that the charge at 32 passing through the delay 36 is not passed to Y. The gate 30 is not inhibited and the output corresponding to signal A appears at X.
Patent GB-152081-A (GB)
Title: Improvements in fasteners for windows
IPC: E05C19/06
Filed: 1919-07-02
Abstract: 152,081. Bond, F. H. July 2, 1919. Catches, automatic. -A sash fastener, adapted to secure a window in the closed or one or more open positions, comprises a spring d attached to the inner face of the lower sash frame, and having its upper end bent at right-angles to form the catch-piece c, which is adapted to engage notches a<1> in the plate a secured to the upper sash. The catchpiece c is withdrawn from engagement by rotating the thumbscrew f, which passes through an internally threaded hole d<1> in the spring d and bears against a plate f<1> attached to the lower sash. The extremity of the ca:ch-piece c and the lower edges of the notches a<1> are bevelled, so that, on closing the window, the catch-piece is automatically thrown out of engagement with the notches.
Patent GB-706260-A (GB)
Title: Friction clutch plate
Inventor: THELANDER WILBUR VINCENT
IPC: F16F15/123
Filed: 1951-07-13
Abstract: 706,260. Springs. DANA CORPORATION. July 13, 1951, No. 16672/51. Class 108(3) [Also in Group XXIV] The yielding movements of some or all of a number of helical cushioning .springs 13 arranged in notches in the hub flange 11 of a clutch plate are damped by the frictional engagement of radiallycompressed C-section sleeve springs 16 with the hubs of cupped buttons 14 enclosing the spring ends. Two flanged cover plates receive the springs 13 in embossed pockets 30 and are riveted at 22 to two series of segments 23, 24 arranged in two planes and carrying friction rings 25, 27. Leaf springs 29 riveted to the segments 23 overlap the segments 24 to provide a '' mush " clutching effect. Sealing rings -32 are provided and, though the springs may operate dry, if oil or grease is employed for lubrication and sound deadening the cover plates are seam welded at 33. In a modification enlarged damping sleeves surround the springs 13 and frictionally grip the flanges of their end buttons. In a further modification, Fig. 5 (not shown), the buttons are of sintered lubricant - absorbing metal and are spherically domed to rock on arcuate ends of the notches in the flange 11. The spaced edges of a damping sleeve may be flanged along their length or urged apart by an interposed strip of neoprene rubber or by a wavy spring.
Patent GB-1009157-A (GB)
Title: Punch and die for tearing paper and the product thereof
Inventor: FLEMING JOHN STUART
IPC: B26F3/02
Filed: 1964-04-22
Abstract: 1,009,157. Cutting-out presses. FLOXITE CO. Inc. April 22, 1964, No. 16686/64. Heading B4B. [Also in Division A5] In a punch and die machine for tearing from a paper sheet a strip having bevelled edges constituted by a continuous series of uniform serrations, the die has an opening provided with a continuous series of uniform horizontally projecting serrations and the punch has a recessed bottom the surfaces of which are inclined at a small angle to the horizontal and intersect the opposite vertical walls of the punch at acute angles entirely around the punch, the bottom surfaces intersecting each other at obtuse angles. In the form shown for tearing from a paper sheet A, a strip B having serrations D, a die 1 has an opening 2 provided with teeth 3 and the punch 5 has a recessed bottom 6 the surfaces 7 of which intersect the opposite walls of the punch at acute angles 8, the surfaces 7 intersecting each other at obtuse angles 9. The work is held during tearing by a resilient cushion 12. In a modification, the strip produced is of double rhomboidal form. Alternatively, it may be oval or rectangular.
Patent GB-1473796-A (GB)
Title: Self-lubricating heat-resistant material and process for manufacturing same
IPC: C10M107/14
Filed: 1975-04-23
Abstract: 1473796 Self-lubricating compositions based on polybutadiene INST NEFTEKHIMICHE SINTEZA IM AV TOPCHIEVA AKAD NAUK SSSR 23 April 1975 16715/75 Heading C3P A self-lubricating material consists of 20-90 wt. per cent of polybutadiene having a degree of cross-linking from 30 to 95% and from 80-10 wt. per cent of one or more of MoS 2 , graphite and B 3 N 4 . The material may also contain powdered copper. The material is made by hot pressing of the starting composition in the absence of external cross-linking agents.
Patent GB-123937-A (GB)
Title: Improvements in or relating to Sound Detecting Apparatus.
Inventor: GILL JAMES HERBERT WAINWRIGHT
IPC: G10K11/00
Filed: 1918-10-14
Abstract: 123,937. Gill, J. H. W. Oct. 14, 1918. Locating subaqueous sounds.-Relates to hydrophones having a diaphragm exposed on both sides to the water but with a screen on one side to reduce the intensity of the sound received on that side to enable the direction of the source of the sound to be determined, the screen comprising a double walled water-tight plate containing loose metallic balls such as lead shot. According to the invention, the lead shot D is arranged loosely in cells B' the sides of which support the walls A, C against the water pressure, thereby preventing the walls from pressing on the shot.
Patent GB-872549-A (GB)
Title: Improvements in or relating to sliding joints for power transmission shafts
Inventor: RABSON EDWARD JOHN
IPC: F16D3/06
Filed: 1958-05-27
Abstract: 872,549. Splined joints. BIRFIELD ENGINEERING Ltd. May 26, 1959 [May 27, 1958], No. 16782/58. Class 80 (2). [Also in Group XXXIV] Splines 5 on a vehicle propeller shaft 1, slidable in a universal joint yoke 2, are each surrounded by a continuous track of needle roller bearings 9, sprung into an endless cage 8 of flexible or semi-flexible plastic material which flexes as the roller track circulates round the spline. The ends of the splines 5 are rounded and the cage slots receiving the coned roller ends are wider at the inside than at the outside.
Patent GB-570620-A (GB)
Title: Improvements in or relating to the manufacture of hollow rubber articles
IPC: B29D22/00
Filed: 1943-10-13
Abstract: 570,620. Moulding and vulcanizing hollow rubber articles. ANDRE RUBBER CO., Ltd., (formerly ANDRE RUBBER CO., Ltd., T. B.), EVERITT; C. A., and HEATON, J. Oct. 13, 1943, No. 16790. [Classes 70 and 87 (ii)] A method of making hollow rubber articles, such as containers or liners for the cases of storage batteries, consists in securing rubber to a former A connected to or constituting part of a detachable closure B of a curing chamber C, and then applying the closure to the chamber so that the former A is thus enclosed in a sealed compartment where it is then subjected to the action of a heating medium such as steam. In the apparatus shown, the former is a hollow rectangular casing, rotatably mounted by means of a hub A<1> on a tubular axle E extending from a standard F carried by a trolley F<1>. The casing A is open at one end, where it is secured to the cover B which can be clamped by means of swing bolts C<1> to the mouth of the chamber C so as to seal it. In use, rubber sheeting G is wrapped on the former A and secured thereto by a non-curing solution. If the mouth of the hollow article is to be formed with a flange, a split or hinged ring H, or a pair of rings adapted to grip between them the peripheral rim of the rubber sheeting, is provided, together with retaining devices such as swing bolts L<1> with spring-pressed locking members for holding the rings in position. Several forms of such flange-forming means are described. The former, with the rubber secured thereto, is carried by the trolley so as to extend into the chamber C,-which is then closed by the cover B. Steam is admitted through an inlet C<2>, and when the curing operation is complete, cooling water is passed into the former by means of a pipe N leading to the hollow axle.
Patent GB-704019-A (GB)
Title: Improvements in and relating to the preparation of lubricating greases
Inventor: MOORE ROBERT JAMES
IPC: C10M159/12
Filed: 1951-07-16
Abstract: A lubricating grease is prepared by heating a mixture of an organic liquid lubricating base and a soap gelling agent to the solution temperature or slightly (not more than 5 DEG C.) above, rapidly cooling to substantially (15-50 DEG C.) below the solution temperature, reheating to only slightly (1-10 DEG  C.) below the solution temperature, and then cooling while agitating to substantially (15-50 DEG C.) below the solution temperature.  The gelling agent is a soap or a mixture of a soap with other gelling agents, e.g. organic or inorganic aerogels such as silica and alumina aerogels, nylon or cellulose fibres.  The saponifiable materials may be fatty acids of 10-32 carbon atoms or their glycerides, oxidation products of petroleum oils and waxes, rosin, tall oil, abietic, naphthenic, and petroleum sulphonic acids. Hydroxy fatty acids are preferred.  The saponifying agent may be an alkaline compound of Li, Na, K. Cs. Ca, Sr, Ba, Cd, Zn, Pb or Co, preferably an oxide, hydroxide or carbonate of a mono- or divalent metal.  Examples of soaps include lithium, sodium, potassium, calcium, barium and lead soaps and mixtures.  Amine soaps are also applicable.  They may be added or made in situ. The lubricating base may be a mineral oil or a synthetic such as polymers of olefins, alkylene glycols or their esters or ethers, tetrahydrofuran, or alkyl silicones, esters such as sebacates, phthalates, and phosphates, and alkyl aromatics.  Minor amounts of fixed oils, e.g. castor or lard, may be added. Saponification may be effected in presence of the base to give a soap concentration of about 30 per cent.  After heating to the solution temperature, quenching is effected with sufficient base to give the desired final concentration; probably 6-8 per cent. Alternatively, a low concentrate, e.g. 7 per cent., may be quenched with further base at say -10 DEG C. to give a 6 per cent. product.  The solution temperature varies with the viscosity and molecular weight of the lubricating base.  For lithium 12-hydroxy stearate in mineral oil, solution temperature is 196 DEG C. and "freezing" temperature 165 DEG C.  Solution is suitably effected by heating at 195-200 DEG C. for not more than 10 minutes, cooling to 160-180 DEG C., reheating to 185-195 DEG  C., cooling with agitation; preferably by a shearing operation, to 150-175 DEG  C., and further cooling statically.  The products are stated to contain the gelling agent dispersed as fine crystal fibres giving non-bleeding, non-slumping properties.  Other additives which may be incorporated include polymers of alkylene glycols or thioglycols or their ethers or esters, other soaps or salts, inhibitors such as amines, phenols, and heterocyclic nitrogen compounds, extreme pressure agents, e.g. esters of phosphorus acids, sulphides, selenides, sulphurized or chlorinated compounds, urea or thiourea derivatives, polyisobutene, polymerized esters, and fatty acids.
Patent GB-1445295-A (GB)
Title: Fibrous sheet material and method for producing such material
IPC: D21H27/30
Filed: 1974-04-17
Abstract: 1445295 Paper SCOTT PAPER CO 17 April 1974 [30 April 1973] 16827/74 Headings D2A and D2B An absorbent fibrous sheet material having a basis weight of from 20 to 100 lbs. per ream of 2880 square feet comprises a soft, absorbent central core region located between outer surface regions at least one of which is creped, said central core region having less fibre concentration than the surface regions, and each of said surface regions having bonding material disposed therein to an extent from 10-60% of the thickness of the web, the bonding material extending inwards from one surface being substantially unconnected to that extending inwards from the opposite surface, the bonding material of at least one surface region being arranged in a fine pattern and the areas in which said pattern is arranged being finely creped. The web may be made from wood pulp, cotton linters, cotton, wool, or rayon, cellulose ester, polyamide, polyester, acrylic, vinyl, protein, fluorocarbon, or nitrile fibres. The bonding material may be a natural rubber latex, a butadiene-styrene, neoprene, nylon or vinyl ethylene terpolymer latex or dispersion; an emulsion of an acrylate or methacrylate, vinyl acetate, or vinyl chloride resin, or a watersoluble resin such as carboxymethyl cellulose, polyvinyl alcohol, or polyacrylamide, or starch derivative e.g. dextrin. Web formation. The sheet material may be formed by first forming a web on a Fourdrinier papermaking machine (Fig. 1 not shown). A chemical debonding agent e.g. a cationic surfactant, may be added to the furnish, or after web formation. Preferably, the web is formed under conditions of reduced pressing while it is wet, and may be creped prior to application of the bonding material. Bonding the web. The bonding material, which may be applied to the web in a spotted or reticulate pattern (Figs. 5 and 6 not shown) may be applied in three ways. Either a pattern of bonding material is applied to one side at one coating station, and then to the other at another coating station, with an optional intermediate drying step inbetween, followed by creping (Fig. 2 not shown). Alternatively, the web may be coated on one side with bonding material and creped, and then may be coated on the other side and creped again, (Fig. 3 not shown). Or, as previously, but without the latter creping step (Fig. 4 not shown).
Patent GB-966804-A (GB)
Title: Substituted oxazoles
IPC: C07D263/42
Filed: 1962-05-02
Abstract: The invention comprises oxazoles of the general formula: <FORM:0966804/C1/1> in which R is an alkyl, aryl, aralkyl or heterocyclic-substituted alkyl group having 1-10 carbon atoms. They may be prepared by contacting an alanine derivative of the formula: <FORM:0966804/C1/2> or <FORM:0966804/C1/3> in which R1 is a hydrocarbon group, with phosphorus pentoxide, preferably in the presence of a solvent. Preferably the starting materials used are heated together. Suitable starting materials are, for example, methyl, ethyl, isopropyl, amyl, isobutyl, heptyl, phenylethyl, phenylpropyl, phenyl, cresyl and tetrahydrofurfuryl esters of N-formyl alanine. Examples are given of the preparation of oxazoles of the formula given above in which R is -OC2H5, -OCH3 and isopropoxy.  The alanine derivatives used as starting materials are prepared as follows: (1) the compounds of formula (a) by treating the corresponding alkyl alaninate hydrochloride with formamide and (2) ethyl a -(isopropoxy methylene amino) propinate is prepared by reacting formimido isopropyl ether hydrochloride with ethyl alaninate hydrochloride. Specification 966,805 is referred to.
Patent GB-1390748-A (GB)
Title: Alkyl and cycloalkylthiophenylalkylaminoalkanols their salts and the preparation thereof
IPC: C07C313/00
Filed: 1973-04-09
Abstract: 1390748 Thiophenylalkylamino alkanols CONTINENTAL PHARMA 9 April 1973 17001/73 Addition to 1321701 Heading C2C The invention comprises amino alcohols having the formula wherein R 1  represents either a linear or branched chain alkyl radical having 1 to 4 C atoms, or a cyclo alkyl radial having 5 to 6 C atoms, R 2  represents a C 1  to C 2  alkyl radical; R 3  represents a linear or branched chain radical having 3 to 10 C atoms which radical is optionally substituted by phenyl; R 4  represents hydrogen, or, together with R 3  and the adjacent nitrogen atom a heterocyclic piperidine nucleus. The amino-alcohols of the invention and their salts are prepared from a compound having the formula or possibly, according to the meaning of Q, from a salt of a compound corresponding to this formula, in which R 1  has the above meaning and it represents one of the groups wherein X represents a halogenation. The compounds of the invention are used as pharmaceuticals.
Patent GB-420052-A (GB)
Title: Manufacture of shaped articles from polyvinyl alcohols
IPC: C08K3/28
Filed: 1933-10-16
Abstract: The invention described in the parent Specifications for the production of threads and the like from polyvinyl alcohol, and for additions to increase the resorbtion thereof, is modified by the further addition of substances promoting resorbtion, which are organic or inorganic electrolytes, other than borax, especially oxalic, malic and lactic acids which are substituted by negative or positive radicals, phenyl hydrazine hydrochloride, or nickel nitrate. Other suitable additions are aromatic sulphonic acids such as sulpho-salicylic acid, benzene-sulphonic acid and toluene-sulphonic acid, trichloracetic acid, glycocol and asparaginic acid, also potassium bichromate.  An addition of 5--10 per cent is suitable. The substance may be added to the spinning solution, e.g. to a solution of polyvinyl ester or acetal, which is subsequently saponified.  Other substances may be added to increase the strength of the threads, e.g. 5--10 per cent of potassium or ammonium sulphocyanide, or cane sugar.  Further additions of substances having a bactericidal action may be made, e.g. esters of aromatic acids such as propyl benzoate, also salts or sols of metals such as silver, mercury, bismuth and arsenic. The product is suitable for surgical and medicinal purposes in the form of capsules, pills, plugs and the like, if desired, with therapeutically active additions.  A hydrophobe substance, a softening agent, a filler or a dyestuff may also be incorporated.ALSO:Threads, cords, ribbons and tubes applicable for medicinal purposes e.g. for sutures, and plugs, pills, capsules and the like consist of a mixture of polyvinyl alcohols with one another or with other substances, containing as an addition which promotes resorbtion an inorganic or organic electrolyte, other than borax, particularly oxalic, malic or lactic acid substituted by negative or positive radicals, phenyl hydrazine hydrochloride, or nickel nitrate.  Other suitable additions are aromatic sulphonic acids such as sulpho-salicylic acid, benzenesulphonic acid and toluene-sulphonic acid, trichloracetic acid, glycocol and asparaginic acid, also potassium bichromate.  An addition of 5-10 per cent is suitable.  Other substances may be added to increase the strength of threads and the like e.g. 5-10 per cent of potassium or ammonium sulphocyanide, or cane sugar.  Further additions of substances having a bactericidal action may be made e.g. esters of aromatic acids such as propyl benzoate, also salts or sols of metals such as silver, mercury, bismuth and arsenic. Therapeutically active substances may be incorporated, also a hydrophobe substance, a softening agent, a filler or a dyestuff.
Patent GB-565298-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B04C5/06
Filed: 1943-10-19
Abstract: 565,298. Centrifugal dust separators. JENNINGS, H. W. K. (Sturtevant Co., B. F.). Oct. 19, 1943, No. 17198. [Class 23] The separator comprises an inner casing formed of arcs 29 ... 32, forming skimming slits 33 ... 36 for removing dust, an outer casing 28, and a chamber 13 provided with tongues 21 forming slots through which gas under pressure is given a clockwise whirl on entering the lower chamber. Clean gas passes upwards through an outlet 15.
Patent GB-702350-A (GB)
Title: A nozzle device for limiting the filling of receptacles with liquids
IPC: F16K21/20
Filed: 1951-07-19
Abstract: 702,350. Filling containers with liquids. TECALEMIT, Ltd. July 19, 1951 [July 31, 1950], No. 17199/51. Addition to 672,497. Classes 21 and 125 (2) The nozzle device of the main invention is located in a pilot tube for liquid supply and is combined with means responsive to the supply pressure of the liquid for successively opening access of the liquid to the pilot tube and access of the liquid to a main flow conduit of larger cross-section. The device is used for filling tanks. When a main supply valve in a pipe (not shown) connected to a threaded part 40 is opened, the liquid presure depresses a piston 24 against a spring 25 to allow liquid to pass stationary valve element. 37 into the pilot tube 22b, 22a, the lower end of which includes the nozzle device 1, 2, 3 of the main invention. Passage of liquid in tube 22b causes an injector action in association with holes 44 to create a vacuum in cylinder 53 with the result that piston 24 is pulled further down to allow liquid to flow past the piston down main-flow conduit 33, 29 and through openings 30 into the tank. When the liquid level rises to the device 1, 2, 3, the latter closes the exit of the pilot tube and liquid passes through holes 44 into cylinder 53 to act on the underside of piston 24 which rises up, first to close the main flow conduit, to stop the filling of the tank, air being displaced from the cylinder through a small aperture 54. When the main supply valve is closed, the piston rises further to close the supply to the pilot tube, the nozzle device 1, 2, 3 is reset to its normal position and liquid in the pilot tube and cylinder 53 drains out of the device through the pilot tube.
Patent GB-950317-A (GB)
Title: Improvements in or relating to dry shaving apparatus
IPC: C07D213/76
Filed: 1960-05-16
Abstract: 950,317. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 16, 1960 [May 19, 1959], No. 17209/60. Heading B4B. In a dry shaver head having a toothed cutting member 3 rotated in contact with the undersurface 10 of a shear plate 1, having radial apertures 2, so that the cutting edge of each tooth co-operates with the edges 7 of the apertures to cut hair, the cutting edge of at least one tooth 5 is bevelled or inclined on its forward side so that its cross-section at the cutting edge is an obtuse angle 8 and skin oil accumulates on the inclined surface 9 to be spread over the undersurface 10 for lubrication of the metal to metal contact between the undersurface and the cutting edges of the teeth.