baber/WOPTO huggingface dataset:
Patent GB-547452-A (GB)
Title: Improvements in or relating to apparatus for indicating the presence of inflammable vapours or gas
IPC: G01N7/12
Filed: 1941-05-31
Abstract: 547,452. Detecting inflammable gases. RING- ROSE, H. T. May 31,1941, No. 6992. [Class 1 (i)] In a detector for inflammable gas comprising a porous vessel 8 in which a partial vacuum is produced by the combustion of gas on a heated filament, a quantitative indication is obtained by the use of a vacuum gauge 39 in conjunction with the porous vessel. To minimize free space in the vessel the filament 9 is mounted in a recess 11 in a boss 5 depending from the cover 4 of the vessel, and radial passages 12 are provided in the boss to facilitate circulation of the gas. The porous wall 3 of the vessel is surrounded by an annular space 21 which may contain an absorbent to maintain a constant humidity in the air entering the chamber and which is bounded by an apertured wall encircled by a hit and miss apertured valve ring 24 for controlling communication between the porous vessel and the atmosphere. The device may be combined with an inspection lamp 19 and screwed on to a battery container (not shown). A contact ring 6 carries contact plates so disposed that either the lamp or the filament may be switched on by appropriately rotating the device upon the battery container.
Patent GB-382945-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/82
Filed: 1931-03-06
Abstract: 382,945. Thermionic valves. BOONTON RESEARCH CORPORATION, Boonton, New Jersey, U.S.A. March 6,1931, No. 7058. Convention date. March 19, 1930. [Classes 39 (i) and 40 (v).] The electrodes of valves having an equipotential, indirectly-heated cathode, a control grid and an anode are so arranged that the controlling effect or transconductance at one portion of the electron stream differs substantially from that at another portion. The anode current-grid voltage characteristic is thus given a remote negative cut-off point as indicated by the curve A, Fig. 8, and as compared with the curve B for a valve with uniform transconductance. In amplifiers incorporating one or more valves giving the curve A, the amplification can be controlled by adjustment of the bias on the control grid to large negative values, and distortionless amplification over a wide range of input voltages is obtained. The effect is similar to that of two or more tubes of different characteristics operating in parallel. The invention is applicable to triodes and to screen-grid valves and the latter may include an outer screen S, Fig. 1, around the anode P. The variation in transconductance may be produced by omitting one or more turns at the centre of the control grid CG as in Fig. 1 and the separate sections of the grid may be connected by a section 4, Fig. 2, of longer pitch. In modifications, turns are omitted at each side of the centre turn of the control grid or this grid is of two or more parts of different pitch or has a pitch varying progressively from end to end. In another modification, the control grid does not extend the full length of the cathode. In other modifications, the control or screening grid or the anode or cathode is conical, the other electrodes being cylindrical. In further modifications, the axis of the cathode is at an angle to that of the other electrodes or eccentric thereto. In particular constructions, a control grid with windings of different pitch is associated with a screen grid of conical form or of two cylindrical parts of different diameter. Specification 279,899, [Class 39 (i), Electric lamps, Arc &c.], is referred to. Reference has been directed by the Comptroller to Specifications 229,019, 339,277, [both in Class 39 (i), Electric lamps, Arc &c.], and 356,663.
Patent GB-562541-A (GB)
Title: Improvements in or relating to sub-machine guns
IPC: F41A9/17
Filed: 1942-08-23
Abstract: 562,541. Automatic smallarms. STOCKS, H. B. Aug. 23, 1942, No. 7074. [Class 119] The cartridge magazine 3 of a sub-machine gun is inserted in the butt and extends at a slight downwards slope from a position in rear of and below the breech 30 to the rear end of the butt. The cartridges 15c are disposed in the magazine with their axes approximately at right angles to the barrel axis and are fed forwards by a spring and follower. Transfer of the leading cartridge to the loading position shown is effected by a pair of gripper arms 40 pivoted at 37, the spring jaws 41 of which can enter the mouth of the magazine and grip the foremost cartridge. The arms 40 are carried by a member 38 comprising a slot 39 which is engaged by a roller 32a supported between the front ends of a pair of crossconnected slides 31 which are connected to the breech block 35 so as to be reciprocated thereby. Latching means are provided, engageable with notches 50, 52 in the member 38, to detain the arms 40 for the necessary periods in the raised and lowered positions respectively. The front end of the breech block is slotted to pass over the jaws 41 and provide a central projection by which the lifted cartridge is pushed forwardly into the breech. The butt-plate is hinged and has inwardly-extending hooks which engage lateral studs on the magazine and start the withdrawal thereof when the butt-plate is opened.
Patent GB-402296-A (GB)
Title: Improvements in or relating to dispersions or plastic preparations
IPC: C09K23/00
Filed: 1932-10-17
Abstract: 402,296. Solvent soaps. BOHME AKT.-GES., H. T., 29, Moritzstrasse, Chemnitz, Germany. Oct. 17, 1932, No. 7079/33. Convention date, Nov. 7, 1931. Divided on 393,164. [Class 91.] Esters of tetrahydrofurfuralcohol with aliphatic carboxylic acids containing not more than five carbon atoms are used with soaps, sulphonated higher alcohols and aromatic sulphonic acids, e.g., in the preparation of solvent soaps. The preparation of the esters of tetrahydrofurfuralcohol with formic acid, acetic acid (using acetic anhydride) and n-valeric acid is described. The propyl ester is mentioned.
Patent GB-783059-A (GB)
Title: Device for cleaning gramophone records, particularly synthetic resin gramophone records
IPC: G11B3/58
Filed: 1956-03-07
Abstract: 783,059. Polishing pads. MERTES L. March 7 1956 [May 24 1955; Feb. 3 1956] No. 7149/56. Class 19. A device for cleaning a gramophone record has a wiper which can be centred on the record and which is provided on the surface facing the record with a cleaning part which wipes dust off and electrostatic charges out. The pad may be of synthetic resin foam material, of synthetic resin foam material provided with a long lasting moisture impregnation, of absorbent woven fabric or velvet provided with a long lasting moisture impregnation. The wiper is preferably in the form of a double-armed folding grip, both arms 1, 2 of which carry pads 6 and are joined at their free ends, in the closed position, by means of a centering pin 4 which is fixed to the one arm and can engage in the other arm through an aperture 5.
Patent GB-1033222-A (GB)
Title: Improvements relating to epoxy-resin-bonded laminated-paper electrical insulators
Inventor: LEWIS REGINALD NORMAN
IPC: B29C70/34
Filed: 1963-02-21
Abstract: 1,033,222. Making pipes. BUSHING CO. Ltd. April 9, 1964 [Feb. 21, 1963; Dec. 2, 1963], Nos. 7199/64 and 47565/63. Divided out of 7027/63. Heading F2P. [Also in Divisions B2 and H2] An electrical insulator is made from layers or turns of paper bonded with an epoxy resin composition which has a molecular structure such that the resin penetrates only a minor portion of the thickness of the paper. The resin composition may comprise a solution of epoxy resin, e g a polyepoxide composition, and a hardener. The polyepoxide composition may be formed by reacting a polyepoxide resin possessing more than one terminal epoxide group per average molecule with a carbocyclic diamine insufficient for the reaction product to harden at room temperature or slightly elevated temperatures, the carbocyclic diamine containing two isolated carbocyclic radicals linked by a short chain bivalent bridge radical, each carbocyclic radical having one amino group and the diamine containing at least three active hydrogen atoms attached to nitrogen atoms. The polyepoxide may be a polyglycidal ether of diphenol, propane; the carbocyclic diamine may be para para<SP>1</SP>-diaminophenylsulphone, diaminodicyclohexylamine or diamino diphenylsulphone, and the carbocyclic radicals may be aromatic or cycloaliphatic. Preferably less than 50% of the stoichiometric equivalent of diamine in relation to the polyepoxide resin is used The hardener may also be a carbocyclic diamine, the amount used bringing the total amount to the stoichiometric equivalent of the polyepoxide resin. Alternatively a catalytic hardener such as stannous octoate or strisdimethylaminomethyl phenol may be used, or an acid or acid anhydride e.g. citric acid. The epoxy resin may include mineral fillers, and reinforcing inserts may be included between the layers or turns of the insulator. In an example a varnish "A" made from an epoxide resin of polyglycidal ethers of diphenylpropane mixed with diaminophenylmethane and dissolved in " Methyl Cellosolve " (Registered Trade Mark) is put into container 10, and a hardener of citric acid dissolved in Methyl Cellosolve into container 11. Amounts of the two solutions are mixed in container 12, and the mix liquid led into tank 14. A sheet of Kraft paper 16 fed from roll 17 passes between rollers 18 and 19 and is coated by roller 18 with the liquid mix The coated paper is dried in an oven 20 and wound on to a roll 21, and stored in 22 until required for winding to form a bushing when the coated paper is wound on to a former 25 at 175‹ C. so that adhesion occurs between the windings and cured in an oven 26.
Patent GB-1169611-A (GB)
Title: Contact Bodies for Cooling Apparatus
Inventor: KUHN WOLFRAM
IPC: F28F25/08
Filed: 1967-02-15
Abstract: 1,169,611. Contact heat exchangers. INSTITUT FUR CHEMIEANLAGEN. 15 Feb., 1967, No. 7263/67. Heading F4K. The contact body of a cooling tower comprises vertical walls of foil, fluted in trapezium form, between which walls a liquid trickles downwards and a gas is conducted upwards in countercurrent for the cooling of the liquid by the gas, several layers of foil being welded together and cut to form blocks 4 disposed sideby-side across the tower, each block having on its underside an oblique cut face so that the dripping liquid can overcome the capillary forces prevailing in the passages. The foil is preferably of synthetic plastics material of thickness 0À1 to 0À5 mm. and has horizontally extending apertures (11, Figs. 5 and 6) in the form of slots to increase turbulence within the blocks and thus increase the cooling effect. The cooling effect is at a maximum when the ratio of the shorter of the parallel sides of each trapezium to the opposite side is in the range 3 : 1 to 20 : 1.
Patent GB-440921-A (GB)
Title: Improvements relating to rat poisons
IPC: A01N65/40
Filed: 1935-03-09
Abstract: A preparation for poisoning rats comprises squills together with a mineral oil or grease.  A suitable composition consists of powdered squills, hard and soft paraffin mineral oil and essential oil for flavouring.  A part of the mineral oil or grease may be replaced by fatty oil or grease such as lard oil or lard and a preservative such as salicylic acid may be added.
Patent GB-607598-A (GB)
Title: Improvements in or relating to band or hose clips
IPC: F16L33/08
Filed: 1945-03-24
Abstract: 607,598. Band clips. O'SHEI, W. E. March 24, 1945, No. 7491. [Class 44] In a band or hose clip of the type tightened by the engagement of a screw with serrations on the end of the band forming teeth and in which the serrations are produced by shearing or forming the material along the centre of the band, the band is supported where it passes through the screw housing by means which engage with the under sides of the flat unformed edges of the band. In the form shown in Figs. 1 and 3, the screw is mounted in a trunnion block 3, and engages threads 6 formed on one end of the band by a shearing or forming operation, as described in Specification 607,595. The plain end of the band 2, where it passes through the housing 5 is formed with a channel 9, and the edge portions 8 of the threaded end are supported on the edges 10. In the form shown in Fig. 4, the plain end of the band is formed with a central opening 12 instead of a channel. Alternatively, the ledges for supporting the edge parts of the band may be formed on the inner surfaces of the housing 5, or spacers may be secured to the edges of the plain end of the band. Specifications 542,482 and 602,458 also are referred to.
Patent GB-1326862-A (GB)
Title: Condenser cooled by an auxiliary fluid
IPC: H01G2/08
Filed: 1972-02-17
Abstract: 1326862 Capacitors CERAVER 17 Feb 1972 [18 Feb 1971] 7502/72 Addition to 1250364 Heading H1M In the fluid-cooled power capacitors forming the subject matter of the parent Specification, low induction connection is made to outer electrode 5 through an annular aperture in thermal insulating layer 10, the connection comprising a tubular metal member secured against layer 10 and provided at the level of the aperture with inwardly biased resilient tongues 18 contacting electrode 5, and/or connection is made to inner electrode 4 by metal tube 19 disposed coaxially within the capacitor near one end and provided with outwardly biased resilient tongues 18 contacting electrode 4. As shown the tubular member is constituted by two member 13, 14 secured together by their flanges 16, only member 13 having welded to its inner surface a beryllium copper tape including contact tongues 18. Members 13, 14 may each be formed from two flanged semi-cylindrical members rivetted together (Fig. 2, not shown). Connection may be made through additional rows of contact tongues extending through further annular apertures in layer 10. As shown tube 19 is integral with end plate 20 and has a berylliumcopper tape bearing tongues 18 welded to its outer surface. Alternatively tube 19 may have contact tongues both ends and may make parallel connection between the inner electrodes of adjacent capacitors (Fig. 4, not shown).
Patent GB-278955-A (GB)
Title: Sintered hard metal alloys and articles manufactured thereof
IPC: C22C1/05
Filed: 1927-03-18
Abstract: 278,955. Krupp Akt.-Ces., F. Oct. 25, 1926, [Convention date]. Alloys.-Hard alloys for tools &c. comprise tungsten carbide free from graphite, together with one or more other metals such as iron, nickel or cobalt. Specifications 239,499 and 242,951 are referred to.
Patent GB-1509430-A (GB)
Title: Isoelectric focusing
IPC: G01N27/26
Filed: 1975-07-09
Abstract: 1509430 Isoelectric focusing ampholyte mixtures F HOFFMANN-LA ROCHE & CO AG 9 July 1975 [10 July 1974 24 April 1975] 07591/77 Divided out of 1509429 Heading C7B An ampholyte mixture is subjected to isoelectric focusing in a series of multichamber devices of the parent invention of successively smaller volume without dilution of the ampholyte solution.
Patent GB-550021-A (GB)
Title: Manufacture of dyestuffs and intermediates therefor
IPC: C09B43/00
Filed: 1941-06-16
Abstract: 550,021. Dyes. HADDOCK, N. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 16,1941, No. 7603. [Class 2 (iii)] Di - (thiocyanosulphonarylamide) derivatives of p : pl - di - (6 - methylbenzthiazyl) - azobenzene are obtained by causing a p : p<SP>1</SP> - di - (6 - methylbenzthiazyl) - azobenzene disulphonyl chloride to react with a thiocyanoarylamine of the benzene series or an N - monoalkyl or N - monoaralkyl derivative thereof. The products may be hydrolysed in substance, or in the process of dyeing cellulosic material in a sodium sulphide bath, to the corresponding di - (mercaptosulphonarylamide) derivatives which may be oxidised to the corresponding polysulphides. Bright orange-yellow dyeings, fast to severe washing, chemick and light, are obtained. Specified thiocyanoarylamines are 4 - thiocyanoaniline,its N- methyl and N - benzyl derivatives, 5 - thiocyano - 2 - aminoanisole (c.f. Specification 514,203) and 2 : 5- dichloro - 4 - thiocyanoaniline. Specified disulphonyl chloride components are those obtainable by the action of phosphorus pentachloride, in a solvent such as benzene, nitrobenzene or 1 : 2 - dichlorobenzene, on one or other of the disulphonic acids obtainable by (a) sulphonating p : p<SP>1</SP>- di - (6 methylbenzthiazyl) - azobenzene, and (b) oxidizing dehydrothio-ptoluidinesulphonic acid, e.g. with sodium hypochlorite. Examples relate to the reaction of (1) to (5), the chloride of the disulphonic acid obtained by method (b) above with (1) 4 - thiocyano - N - methylaniline, (2) 4 - thiocyanoaniline, (3) 5 - thiocyano - 2 - aminoanisol, (4) 2 : 5 - dichloro 4 - thiocyanoaniline, (5) 4 - thiocyano - N - benzylaniline, (6) to (9), the chloride of the di - sulphonic acid obtained by method (a) above with (6) 4 - thiocyanoaniline, (7) 4 - thiocyano - N - methylaniline, (8) 4 - thiocyano - N - benzylaniline, (9) 5 - thiocyano - 2 - aminoanisol. N - Benzyl - 4 - thiocyanoaniline and 2 : 5- dichloro - 4 - thiocyanoaniline are obtained by the action of sodium thiocyanate and bromine in strong acetic acid on N - benzylaniline and 2 : 5 - dichloroaniline respectively.
Patent GB-291905-A (GB)
Title: Improvements in or relating to apparatus for moulding and vulcanising pneumatic tyre covers and the like
IPC: B29D30/06
Filed: 1927-03-19
Abstract: 291,905. Dunlop Rubber Co., Ltd., Willshaw, H., Norcross, T., and Broadbent, F. G. March 19, 1927. Moulding wheel tyres.-The usual clip or bead rings of a vulcanizing mould are not-removed with the tyre after each use of the mould but are permanently associated with the two halves of the mould. Fig. 5 shows a mould of the type in which the upper steam chest 2 is hinged at 4 to the lower chest 1, and in which through linkage connected with the hinged chest 2 the tyre mounted on a carrier ring 6 is automatically stripped from the mould when the latter is opened. The lower clip ring 9 is secured to or integral with the carrier ring 6 but the upper clip ring 9<a> is yieldingly attached to the upper chest 2 by means of brackets 11 on the ring 9<a> connected through springs 14 to brackets 13 on the chest 2. In order to remove the tyre from the upper mould member the tyre is prevented from rising during the initial movement of the upper chest by spring-controlled plungers 19 engaging above a, flange 9<b> on the upper ring 9<a>. During this movement arms 22 on the brackets 13 tilt pivoted members 17 which through bifurcations 18 withdraw the plungers 19, so that on further opening of the mould the tyre, lower clip ring 9, and carrier ring 6 are lifted clear of the lower chest, whilst the upper ring 9<a> is drawn by the springs 14 into position in the upper chest. In order that the carrier ring 6 may be wholly stationary during the initial movement of the chest 2, a lost-motion device such as a slot may be provided in the linkage between the ring 6 and hinge 4, and in such case a detent controlled by the linkage prevents the ring 6 from being pulled up by the tyre. The chests may be clamped together when closed by cam clamps as described in Specification 272,992 combined with means for controlling the supply of fluid-pressure to the interior of the tyre, or by eccentric, crank or toggle mechanism as described in Specification 290,405. Fig. 8 shows an arrangement in which the lower chest 30 is movable vertically with respect to the upper (fixed) chest 29 by a hydraulic ram 32. The upper clip ring 29<b> is secured to slidable pillars 37 controlled by springs 40 the force exerted by which is greater than that exerted by gravity on the moving parts so that when the pressure on the piston 32 is released the tyre is first stripped from the upper mould member. The platform 35 carrying the lower clip ring 30b and the tyre, and the platform 36 carrying the lower chest 30 descend together until the former strikes the stops 31b when the latter continues alone and strips the tvre from the lower mould member. Alternatively, the upper clip ring and the tyre may be stripped from the upper chest by spring plungers carried by the ram head engaging with a flange on the clip ring and controlled by a cam on the upper chest. Specification 252,415 also is referred to.
Patent GB-1165925-A (GB)
Title: 0,2-Dihydro-1-Hydroxy-4-Phenoxypyrimidines
IPC: A61K31/535
Filed: 1966-11-25
Abstract: 1,165,925. Antihypertensive &c. compositions. UPJOHN CO. 25 Nov., 1966 [27 Dec., 1965], No. 7672/69. Divided out of 1,165,924. Heading A5B. [Also in Division C2] Pharmaceutical compositions, having antihypertensive, antifertility, antiviral, anti-inflammatory, central nervous system stimulant and electrolyte and water retention activity comprise a compound of formula I in which X is fluorine, chlorine or bromine, n is 1 or 2 and n, is 0, 1, 2,or 3, or an acid addition salt thereof, together with a pharmaceutically acceptable carrier. The compositions may be administered orally or parenterally in the form of tablets, capsules, powders, pills, granules, syrups, elixirs, suppositories or sterile aqueous or vegetable oil dispersions, or, in veterinary use, in the form of a food premix. The compositions may also contain diuretics, sympathetic blocking agents, ganglionblocking agents, peripheral vasodilators, reserpinoids, tranquilisers, sedatives, muscle relaxants, antihistamines, anaesthetics and other antihypertensives .and specific examples of these agents are given.
Patent GB-833405-A (GB)
Title: Improvements in or relating to electrical encoding and translation apparatus
IPC: H03M1/00
Filed: 1958-03-10
Abstract: 833,405. Electric selective signalling systems. MINNEAPOLIS-HONEYWELL REGULATOR CO. March 10, 1958 [March 8, 1957], No. 7706/58. Class 40 (1). [Also in Group XXXVII] In a device for digitizing an analogue voltage, Fig. 1, the analogue voltage passes via an input selector to a zero suppression circuit 3 (see Fig. 2, not shown) which causes a selected constant voltage to be added to it, then via a fixed gain amplifier 4 to a digital span adjustment circuit 5 which attenuates it a pre-set amount so that the total voltage variation falls between selected limits, and then to a decision amplifier 6 where it is repeatedly compared with a number of reference voltages. The reference voltages are built up by a chain of relays 112 to 123, Fig. 4, which in effect move the centre tapping point, joined to a terminal 61, of a potentiometer 9 which is across a constant voltage source 69. This voltage is applied to the decision amplifier in series opposition with the amplified input analogue voltage and with the voltage from a zero suppression potentiometer 7 which in effect shifts the origin of the digital output signals. Each of the relays 112-123, for example relay 112, has two contacts 160a and 160b associated with it, momentary-closure of the first of these contacts 160a energizes the relay, which then holds, and momentary closure of the second of these contacts 160b permits the relay to drop out in dependence upon the condition of a relay 163 controlled by the decision amplifier to be energized when the decision amplifier receives a negative voltage. The contacts 160a, 160b... 160x are momentarily closed in succession by a sequence switch 160 (see Group XXXVII) so that the relays 112-123 pick-up in succession and each only drops out again if immediately after its pick-up the decision amplifier receives a negative, which means that the reference voltage built up by the relay chain is too large. Thus when each of the contacts 160a-160x has been closed some of relays 112-123 will still be energized, and these will be such as to cause the built-up reference voltage to be as near as possible to the amplified input analogue voltage, and a digital output is then obtained from tree-circuits 11, which are controlled by the relays 112-1-23.