baber/WOPTO huggingface dataset:
Patent GB-1280372-A (GB)
Title: Improvements in or relating to dental instruments
IPC: A61C1/18
Filed: 1970-01-26
Abstract: 1280372 Coupling for dental handpiece KALTENBACH & VOIGT 26 Jan 1970 [27 Jan 1969] 3745/70 Heading ASR [Also in Divisions E2 and F2] A coupling for the connection of a dental handpiece to a motor comprises a resilient hook 6 adapted, via features of the motor unit 2-3 and the handpiece, to releasably connect these components and allow relative rotation therebetween. A sleeve 1 of the handpiece, or an intermediate sleeve, is generally cylnidrical and adapted to slide over a generally cylindrical slide-connection sleeve 3 connected to a motor 2. A longitudinal groove 4 is provided on the surface of the sleeve 3 which groove contains the resilient hook 6. An annular groove 8 is provided in the inside surface of the sleeve 1 bounded along one side by a cap 10 and along the other by one edge of a ring 15 which ring is connected by trunnion screws 14 in elongated holes 13 to a further sleeve 12 slidable along the axis of the sleeve 1. The sleeve 3 is introduced into the sleeve 1 and the nose 7 and arm of the hook 6 are depressed into the recess 19 and groove 4 respectively, by the cap 10, the nose 7 then engaging a point in the groove 8 upon reacting the position shown. To release, the sleeve 12 is moved to the right, as shown, causing the ring 15 to depress the nose 7 of the hook 6 which ring then maintains the hook in this position enabling the sleeve 3 to be removed from the sleeve 1.
Patent GB-1417355-A (GB)
Title: Substituted piperazine and homopiperazine derivatives
IPC: C07D295/192
Filed: 1974-02-28
Abstract: 1417355 Piperazines and homopiperazines ICHTHYOL - GESELLSCHAFT CORDES HERMANNI & CO 28 Jan 1974 [29 Jan 1973] 03782/74 Heading C2C Novel compounds of Formula I m is 1 or 2, R 1  and R 2  are H, C 1-4  alkyl, C 1-4  alkoxy or halogen, R 3  is H or C 1-4  alkyl and R 4  is wherein R 5  and R 6  are H, C 1-4  alkyl, halogen or m-CF 3  or R 3  and R 4  together are wherein m<SP>1</SP> is 1 or 2, R 7 , R 8  and R 9  are H, C 1-4  alkyl, C 1-4  alkoxy, halogen or CF 3  and acid addition salts thereof, are prepared by one of the following methods (a) a compound of Formula IV  is reacted with X 1 CH 2 CONR 3 R 4  when X 1  is halogen; (b) a compound of Formula VI is reacted with a compound VII wherein X 2  is halogen or C 1-4  alkoxy; (c) a compound of Formula VIII is reacted with an amine R 3 NHR 4 ; or (d) a compound of Formula X is reacted with a compound of Formula XI Pharmaceutical compositions in conventional forms useful for treating lesions of the digestive tract comprise an above novel compound and a carrier or diluent.
Patent GB-967342-A (GB)
Title: Improvements in and relating to flame barriers
Inventor: ARMSTRONG EDWARD
IPC: B62D33/00
Filed: 1962-02-01
Abstract: 967,342. Tank vehicles. DARCHEM ENGENEERING Ltd. Feb. 20, 1963 [Feb. 1, 1962], No. 3811/62. Heading B7B. [Also in Divisions A5 and E1] A flame barrier for use in tank vehicles comprises three juxtaposed and interconnected corrugated metal panels preferably of stainless steel, the corrugations in the two outer panels being parallel with each other and smaller than those of the central panel which are disposed preferably at right angles to the corrugations in the outer panels.
Patent GB-390294-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: F21V21/002
Filed: 1932-02-09
Abstract: 390,294. Needle-point couplings. CAMPBELL, J. D., 54, Marlborough Road, Forest Gate, London. Feb. 9, 1932, No. 3830. [Class 38 (i).] In electric-lamp holders of the kind wherein pointed members extending rearwardly from spring-plunger contacts project into a groove which receives a twin cable, so that by clamping a base member in position the points penetrate the insulation and make contact with the two conductors, the conductors are driven on to the projections 4, 5 by means of a wedge 7 which is driven into a diametral slot provided with guides 8 co-operating with shoulders 9 on the wedge. The arrangement may be modified for use in a holder of the Edison type. A pair of lugs protecting outwardly from the base along a diameter at right-angles to that of the cable slot provide means for attaching the holder to a support.
Patent GB-493758-A (GB)
Title: Improvements in or relating to wireless aerial systems
IPC: H01Q21/00
Filed: 1937-02-09
Abstract: 493,758. Aerials. CORK, E. C., MANIFOLD, M. BOWMAN-, and PAWSEY, J. L. Feb. 9, 1937, Nos. 3840 and 18212. [Class 40 (v)] A substantially reflectionless capacity-loaded aerial is inclined at an angle so that the generatrix of the cone of maximum transmission or reception is coincident with the direction of propagation. Two or more aerials may be arranged to form an array. The aerials may comprise lengths of overlapping conductors as claimed in Specification 490,414, or may comprise pieces of wire about 15in in. length joined by capacities of substantially 50 micromicrofarads, the overall length being from 50 to 60 feet. As shown in Fig. 1c, the aerial is tilted at an angle of 45‹ to the horizontal. One end is either connected to the mid point of a vertically disposed half-wavelength conductor or (as shown) is earthed by using a coiled earthing conductor 5a which resonates to form an effective half-wavelength earth. The other end of the aerial is connected through a transformer 6 to a concentric feeder 7, the sheath of either feeder 7 or transformer 6 being earthed by a coiled conductor 8a on a wooden former 9 or by a half-wavelength conductor connected at its mid-point to the sheath of the transformer. If a number of aerials are used to form an array as shown in Fig. 2, arrangements are made in transmission lines H and I for signals from the desired direction to be in phase at the junction of the three feeders.
Patent GB-321371-A (GB)
Title: Improvements in vanity cases
IPC: A45D33/28
Filed: 1929-02-05
Abstract: 321,371. Zell, D. H. Oct, 24, 1928, [Convention date]. Lined and fancy boxes; fittings, internal; lids;, boxes combined with mirrors. - A vanity case made to resemble a book comprises a base-plate 5 secured to a rectangular frame 7 of L-section by tongues 8, and a cover plate 13 secured by tongues 14 to a second rectangular frame 15 hinged at 12 to the first frame, a spring locking device 16, 17, 18 being provided to secure the parts together. A tray 21 for powder is placed within the body and retained in place by protuberances 22 on the frame, a chromium-plated steel mirror 35 being similarly secured within the cover. A tubular container 24 for a lipstick &c. holder 28 is juxtaposed against the rear edge of the case, and secured thereto by an ornamental leather &c. cover 27.
Patent GB-1164206-A (GB)
Title: Alkylation of aromatic compounds.
IPC: C07C43/23
Filed: 1967-01-26
Abstract: 1,164,206. Alkylation of aromatic compounds. UNIVERSAL OIL PRODUCTS CO. 26 Jan., 1967 [1 Feb., 1966], No. 3929/67. Heading C2C. [Also in Division C5] Aromatic compounds are alkylated with alkylating agents in the presence of a catalyst comprising silica, alumina and a component comprising an alkali metal or an alkaline earth metal. Suitable alkylating agents are, for example, olefins, alcohols and alkyl halides. Examples are given of (a) the reaction of phydroxyanisole with tert.-butyl alcohol to give 3.tert.-butyl-4-hydroxy anisole, 2-tert.-butyl-4- hydroxy anisole and 2,5-di-tert.-butyl-4-hydroxy anisole; (b) the reaction of p.methylthiophenol with isobutylene and (c) the reaction of m-cresol with 2-methyl butene
Patent GB-117091-A (GB)
Title: Improvements in and relating to Detonating Devices for Projectiles.
Inventor: KERR RICHARD
IPC: F42B12/64
Filed: 1917-10-19
Abstract: 117,091. K.err, R. Oct. 19, 1917. Projectile fuses.-Relates to direct-action percussion. fuses of the kind in which a striker projecting from the nose of the projectile is screwthreaded and carries a safety-member which becomes unscrewed during the flight of the projectile, so as to allow the striker to be driven in when impact occurs. According to the invention, a stop is provided on the striker, so as to limit the outward movement of the safety-member. In the construction shown, the safety-piece 10, the surface of which may be made with depressions, flutings, or ribs 19, is screwed on the projecting end of the striker 11, and normally abuts against the nose of the shell. When the shell is discharged, the part 10 screws outwardly. until it is arrested by a stop 17. In the case of a shell such as that shown, adapted to be fired from a gun, the unscrewing of the part 10 is due to its inertia, the action being assisted by a projection 18 on the striker co-acting with an abutment on the tube 13 in which it is located.
Patent GB-1008327-A (GB)
Title: Bistable trigger circuits employing negative resistance diodes
IPC: H03K3/315
Filed: 1961-11-08
Abstract: 1,008,327. Semi-conductor bi-stable circuits. WESTERN ELECTRIC CO. Inc. Nov. 8, 1961 [Nov. 10, 1960], No. 39932/61. Heading H3T. A trigger circuit comprises a voltage controlled negative resistance diode, e.g. a tunnel diode 10, in series with a inductor 11, biased for bi-stable operation. Bi-polar trigger pulses are fed from a source 14, each pulse being effective to switch the diode from one to the other of its two stable states. A resistor 12 is included in series with the inductor 11, the time constant of the circuit being long compared with the duration of the pulse. Assuming the circuit is in its low voltage state, then the positive excursion of a trigger pulse will switch it to its high voltage state, and the negative portion of a subsequent pulse will switch it back to the low voltage state. Re-triggering from one state to another by the other portion of a trigger pulse is prevented by the time constant of the inductive circuit.
Patent GB-123747-A (GB)
Title: Improvements in or relating to Signal Systems on Railways.
Inventor: GUIGNOT PIERRE MARIE ETIENNE E
IPC: B61L3/04
Filed: 1919-02-18
Abstract: 123,747. Guignot, P. M. E. E. Dec. 26, 1917, [Convention date]. Detonator apparatus.- A mechanical treadle apparatus is arranged so that its inertia causes the detonator to be fired only if the passing train is moving at a high speed. Fig. 2 shows one form of apparatus in which the detonator f is carried by the lever a which is adjustably counterweighted by the mass d. A spring e<1> is arranged between the striker e which engages the train wheels and the lever a, and a train moving slowly depresses the lever a and does not fire the detonator. A rapidly moving train depresses the striker e on to the detonator before moving the lever a to the position shown, in which it is held by a pawl i until the signal is reset to ' clear,' and the said pawl is then released by the cam j. The treadle may be set clear of the train wheels by the connexions h, h<1> to the signal. Fig. 3 shows a mechanism for actuating a bell-crank carrying a detonator placed some distance from the treadle. A rapidly moving train covers the distance before the detonator is removed by the mechanism. The levers k, a, are pivoted on the axle k<1> and are resiliently connected by a spring l. The lever k is linked to an hydraulic brake m' which limits the speed of downward movement of the lever. The lever a carries a weight d, and is connected, through a slotted link n, to an hydraulic brake n<1> which acts at the ends of the stroke in both directions. The link n<1> is connected to the detonatorplacing mechanism, Fig. 5, situated at a distance from the treadle k. The detonator f is carried on a light frame p movable about the axis p<1> ; bellcranks q, q', also movable about the same axis, are attached respectively to the signal connexions and to the bell-crank o<1> of the treadle mechanism, and serve to remove the detonator from the rail. An electric contact t is fitted so as to be closed by the frame p when a detonator is on the rail.
Patent GB-625162-A (GB)
Title: Improvements in or relating to synthetic elastoprenes and manufacture thereof
IPC: C08F236/04
Filed: 1947-02-12
Abstract: Di-olefines are copolymerized in alkaline aqueous emulsion with a cyanoacetic ester and an aldehyde in the presence of a peroxy catalyst.  Aldehydes specified are formaldehyde, acetaldehyde, propionaldehyde, crotonaldehyde, butyraldehyde, furfural, acetaldol, butyraldol.  Suitable catalysts are hydrogen peroxide, benzoyl peroxide, methyltetrahydrofurane peroxide and ammonium persulphate. Specification 602,615 is referred to.  Samples have been furnished under Sect. 2 (5) of the Acts of the polymerization in aqueous emulsions containing sodium dibutylnaphthalene sulphonates, sodium carbonate and disodium hydrogen phosphate of butadiene, ethyl cyanoacetate and (1) butyraldehyde; (2) benzaldehyde; (3) crotonaldehyde; (4) acetaldehyde; (5) 3-butoxybutyraldehyde, and (6) 3-methoxybutyraldehyde.  In each case the emulsion was coagulated with a solution of sodium chloride in sulphuric acid and the product treated with phenyl-b -naphthylamine.
Patent GB-306133-A (GB)
Title: Machine for making paper bags
IPC: B31B150/00
Filed: 1929-02-07
Abstract: 306,133. Fischer & Krecke Ges. Feb. 17, 1926, [Convention date]. Paper bags, making. - In making paper bags of the " cross-bottom " type, a tubular web fed along a former a passes beneath a rotary cutter e adapted to remove a semicircular or other portion from the upper part of the web before the web is fed by rollers k, l to rotary cutters f, g, which cut it into bag lengths. Rollers h, i feed the bag length on to a rotating drum shaving grippers q adapted to engage the front thereof at the part exposed by the semi-circular cut, whilst fingers r, adjustable for different sizes of bags, engage the rear end thereof simultaneously, a needle o on a roller m engages and lifts the front of the upper part of the bag length and a creaser p on the roller determines the depth of the opening. When the needle o frees itself from the bag, wipers s complete the diamond fold and the drum n moves the bag beneath a presser plate t. Folders x, y on a roller w co-operate with a fixed folder u and adjustable folder n to fold up the corners of the diamond fold. Paste taken from a roller b<1> is applied by a member z on a shaft a<1> and the gripper q is released to allow a rapidly moving rod d<1> on a chain c<1> to fold over the rear corner piece, whereupon a fixed folder f' folds down the front corner piece. The machine may operate on a web having bellows folds at its sides, additional fingers being provided on the roller m to open out the bellows fold and knives being mounted on rollers c, d to form slits to facilitate the pasting operation.
Patent GB-1458586-A (GB)
Title: Antiviral complexes of double stranded rna and its derivatives
IPC: A61K31/785
Filed: 1974-01-29
Abstract: 1458586 Ionic complexes of double-stranded RNA BEECHAM GROUP Ltd 29 Jan 1975 [29 Jan 1974] 04207/74 Heading A5B [Also in Divisions C2 and C3] A pharmaceutical composition having prolonged interferon inducing and antiviral activities in tissue cultures and in whole animals comprises a principally ionic complex in which the cations are organic polymer cations which contain repeat units of the formula: where m and n are the same or different and each is an integer of from 3-5 and the anions are either (a) double stranded RNA polyanions, said RNA being of natural origin or (b) polyanions of a double stranded derivative of a double-stranded RNA of natural origin (see Division C3).
Patent GB-895015-A (GB)
Title: Improvements in or relating to jet propulsion devices
IPC: F42B19/26
Filed: 1951-02-21
Abstract: 895,015. Jet propulsion plant. AEROJET-GENERAL CORPORATION. Feb. 21, 1951 [July 22, 1950], No. 4259/51. Class 110 (3). [Also in Group XXI] In a torpedo propelled by a steam jet the fuel comprises a mixture of aluminium powder and potassium perchlorate. As shown, the motion of the torpedo causes the passage of water through the tube 18 into the chamber 17 where it is vaporized by the fuel 15 which burns at the end inside 17. Steam and water are forced through the orifice 12 and out through the nozzle 26 together with water admitted through the annular throat 24a. The fuel may be ignited by the reaction of a sodium fuze with water.
Patent GB-983311-A (GB)
Title: Liquid-supply cups for analysis apparatus
IPC: B01L3/00
Filed: 1962-02-05
Abstract: 983,311. Cups. TECHNICON INSTRUMENTS CORPORATION. Feb. 5, 1962 [March 8, 1961], No. 4294/62. Heading A4A. [Also in Division B1] A cup 10, in which a sample of liquid is supplied to an automatic analysis apparatus of the type disclosed in Specification 863,910, has an external shoulder 14, by which it is supported in an aperture 20 in a turn-table support plate 18 and the lower part of the cup has a wall 27 tapering steeply to a flat bottom 27<SP>1</SP> to form a well from which the contents can be completely removed by an aspirated take-off tube 28 while the cup remains upright. The cup is moulded in clear polystyrene and has an integral handle 22 having an identifying device, e.g. a number, moulded in its undersurface. A skirt 29 supports the cup on any flat surface and internal variations in the thickness of the wall 12 provide graduations 34 which are visible from the outside of the cup. To aid mixing, spaced projections or ribs 32, provide turbulence in the liquid when it is stirred by motordriven rotated rod.
Patent GB-1448281-A (GB)
Title: 1,3-diphenylpyrazolines
IPC: C07D231/06
Filed: 1973-01-29
Abstract: 1448281 Brightening agents SANDOZ PRODUCTS Ltd 8 Jan 1974 [29 Jan 1973] 4366/73 Heading C2C New brightening agents have the formula in which R 2  and R 3 , which may be the same or different, each signifies a hydrogen atom, a halogen atom, an alkyl radical of 1 to 4 carbon atoms, an alkoxy radical of 1 to 4 carbon atoms, a cyano radical or a sulphonic acid group, and R 1  signifies a halogen atom, an alkyl radical of 1 to 4 carbon atoms, an alkoxy radical of 1 to 4 carbon atoms, a cyano radical, a sulphonic acid group or a phenyl radical, or R 1  and R 2 , together, form a methylenedioxy group, R 3  being as defined above, R 4  signifies a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, R 5  signifies a hydrogen atom, a halogen atom, an alkyl radical of 1 to 4 carbon atoms or an alkoxy radical of 1 to 4 carbon atoms, R 6  signifies a hydrogen atom, an alkyl radical of I to 4 carbon atoms, an unsubstituted phenyl radical or a phenyl radical substituted by a chlorine atom, an alkyl radical of 1 to 4 carbon atoms or a sulphonic acid group, A signifies a phenylene radical or an alkylene chain of 1 to 4 carbon atoms, unsubstituted or substituted by an alkyl radical of 1 to 4 carbon atoms. The brightening agents may be in free acid or salt form. The compounds may be made by (a) reacting a compound of formula with a compound of formula (b) reacting a compound of formula with a compound of formula (c) reacting a compound of formula with a compound of Formula III (d) obtaining a compound of formula in which A<SP>1</SP> signifies -CHR 7 -, R 7  being a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, by reacting a compound of formula with a compound of formula and a compound of formula in which M is an alkali metal and one of X and X<SP>1</SP> signifies a hydrogen atom and the other signifies an alkali metal (e) obtaining a compound of formula in which A<SP>11</SP> signifies an alkylene chain of 3 chain carbon atoms, which is unsubstituted or substituted by an alkyl radical of 1 to 4 carbon atoms by reacting a compound of formula with a compound of formula or (f) obtaining a compound of formula by reacting a compound in which R 9  and R 10  are hydrogen atoms or C 1-6  alkyl groups or R 9  and R 10  are joined to form a heterocyclic ring which optionally contains an additional hetero atom to the nigrogen atom with a compound of Formula III. The hydrazino compounds of Formula III may be obtained from the corresponding amino compounds in the usual way.
Patent GB-607835-A (GB)
Title: Improvements in and relating to hot-fluid degreasing tanks
IPC: C23G5/04
Filed: 1946-02-12
Abstract: <PICT:0607835/III/1> <PICT:0607835/III/2> A tank for hot fluid degreasing of machinery parts &c. comprises an open top vessel 1, heating means acting through the walls thereof, a partition 11 extending vertically up to a point below liquid level and situated adjacent to one wall, together with two or more compressed air venturi liquid inciters 16-17, 22-23, Fig. 2, mounted within the vessel near the bottom thereof so that the degreasing fluid is agitated and causes the grease &c. to rise to the surface and flow towards the space B between the partition 11 and adjacent wall in which the grease &c. may settle.  The vessel 1 is preferably surrounded by a heating jacket 4 formed by an intermediate vessel 3 and an outer vessel 2 with lagging 5 therebetween.  Steam, electric or gas heating may be used and in the form shown an elongated gas burner 6 with upwardly directed jets is provided at the bottom of the heating jacket on the front side of the degreasing vessel 1, the heat rising up this side, then down the jacket at the sides of the vessel, under the bottom of the vessel and finally up at the back to a flue 8 as indicated by the arrows A.  The bottom of the heat-circulating passage may be lined by a panel 10 of brick &c. to absorb any condensed moisture.  The two venturi inciters are arranged at opposite bottom corners of the degreasing vessel and comprise in the one case a compressed air pipe 13, a universal joint 14, a nozzle 16 and an enclosing tube 17 to constitute a venturi, the other inciter being similarly constructed.  The inciters may be set in the most suitable position for any particular run.  Drain pipes 25, 26 and a flue damper 27 may also be provided.  In a modification, the venturi inciter may have two, three or more nozzles in a common or separate tubes.  The venturi inciter may take the form described in Specification 584,655, [Group II].
Patent GB-807620-A (GB)
Title: Manufacture of indole derivatives
Inventor: YOUNG EDWIN HARRY PATERSON
IPC: C07D209/12
Filed: 1956-02-13
Abstract: The invention comprises indole-3-aldehyde derivatives of the formula <FORM:0807620/IV (b)/1> wherein R is a benzyl radical, and the preparation of compounds of the above formula in which R is a methyl or a benzyl radical by treating an indole derivative of the formula <FORM:0807620/IV (b)/2> with dimethylformamide and a phosphorus halide or oxyhalide, followed by decomposition of the intermediate product so formed by heating it in an alkaline medium.  The phosphorus halide is preferably phosphorus tribromide or phosphorus pentabromide and the phosphorus oxybromide is preferably phosphorus oxychloride. The preliminary formation of the intermediate product is accelerated or completed by the application of heat, and the alkaline medium required to decompose such product is preferably provided by aqueous sodium or potassium hydroxide solution.  The reaction may be conducted in the presence of a solvent or diluent, such as dioxan, or an excess of the dimethylformamide reactant in place of a solvent or diluent.  The examples describe the preparation of 5-benzyloxyindole-3-aldehyde, 6-benzyloxyindole - 3 - aldehyde, 5 - methoxyindole - 3-aldehyde and 6-methoxyindole-3-aldehyde.  According to the Provisional Specification R in the above formulae may represent an alkoxy group or an aralkyloxy group.