baber/WOPTO huggingface dataset:
Patent GB-1278273-A (GB)
Title: Substituted tetrahydroquinolines
Inventor: RICHARDS HUGH COLIN
IPC: C07D215/48
Filed: 1970-01-29
Abstract: 1278273 Esters and ethers derived from 1,2,3,4 - tetrahydroquinoline PFIZER Ltd 19 April 1971 [29 Jan 1970] 4308/70 Addition to 1166538 Heading C2C The invention comprises compounds of formula and their N-oxides and pharmaceutically acceptable acid addition salts, wherein R<SP>1</SP> and R<SP>2</SP> are each H, alkyl, alkoxyalkyl, alkanoyloxyalkyl or cycloalkyl, or NR<SP>1</SP>R<SP>2</SP> is a saturated heterocyclic group (which may be substituted by alkyl, alkoxyalkyl or alkanoyloxyalkyl); R<SP>3</SP>, R<SP>6</SP> and R<SP>7</SP> are each H or alkyl; R<SP>8</SP> is alkyl or alkanoyl; R<SP>5</SP> is NO 2 , CN or halogen; n is 1 or 2, and each alkyl or alkanoyl group contains up to 6 C atoms. These compounds are prepared by etherification or esterification of corresponding hydroxyalkyl compounds. Therapeutic, compositions having anti-schistosomal activity comprise compounds of the above formula. Administration may be oral or parenteral.
Patent GB-175969-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H1/54
Filed: 1922-02-14
Abstract: 175,969. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Aalborg, C.). Feb. 26, 1921, [Convention date]. High-potential switches; partly electromagnetic.-In a switch having a flexible contact cooperating with a butt contact, the flexible contact comprises a pair of flexible members, e.g. laminated handles 12, 13, permanently disposed at an angle with respect to the normal to the contact surface and outwardly with respect to one another so that the magnetic effect of the current tends to free them on to the butt surface 6. As illustrated in Fig. 1, which is an end elevation of a double-break switch using laminated contacts 12, 13, the laminations are attached to the bridge-piece 5 so that they lie in planes parallel to the direction of movement of the bridge-piece and their splayed ends are at right-angles to the usual direction of laminations in contacts of this type. Movable and stationary arcing tips 17, 10 are provided. Specification 170,556 is referred to.
Patent GB-594944-A (GB)
Title: Improved flooring or roadway for use on a raft-like structure or floating bridge or as a ramp, track, light-bridge or the like structure over soft soil
IPC: E01D15/20
Filed: 1944-03-09
Abstract: 594,944. Floating bridges; temporary roads. WALKER, D. W. R. March 9,1944, No. 4394. Convention date, July 14, 1941. [Classes 20(i) and 107] A flooring or roadway for a raft structure, e.g. a buoyant mat, or for stretching over soft soil, &c., comprises sections each composed of transverse track members clamped on their ends between upper and lower longitudinal stiffening members. The sections may be coupled rigidly end to end or may be articulated. The sections may consist of planks 11, Fig. 3, laid on flat steel bars 12 provided with bearing plates 14a for stirrups 14 which pass upwardly between adjacent planks and receive through their upper ends the upper longitudinal members 13 of angle or other rolled steel section, the members 13 being clamped down on to the planks by wedges 17 driven into the stirrups 14. An intermediate pair of upper and lower stiffeners may be similarly applied between the ends of the planks. Adjoining sections may be coupled by pins 19, Fig. 4, on the end stirrups, passing through holes in the aligned lower longitudinal members 12, 12<1>, one of these being offset at its end to overlie the other. Specification 594,942, [Group XXXIII], is referred to. The Specification as open to inspection under Sect. 91 describes also diagonal bracing interposed between the lower longitudinal members, and a ramp for waterside use comprising Sections R1, R2, Fig. 8, (Cancelled), coupled by a hinge bolt 29. This subject-matter does not appear in the Specification as accepted.
Patent GB-836839-A (GB)
Title: Improvements relating to interlocks
IPC: E05B27/10
Filed: 1957-02-08
Abstract: 836,839. Key locks; keepers. POWER EQUIPMENT CO. Ltd., CASTELL LOCKS Ltd., and HEATH, B. H. Feb. 6, 1958 [Feb. 8, 1957], No. 4426/57. Class 44 A key-operated interlocking device comprises a body member 1 providing openings 2, 5 for the reception of two removable members, one of which is a rotatable key 6, the body member 1 being furnished with at least one slidable plunger 7 which is located so as to project into the opening 2 for the other member 3 and to be displaced longitudinally when said other member 3 is entered into the opening 2, whereby the plunger 7 is moved from a position in which it prevents rotation of the key 6 and its withdrawal from the other opening 5 to one in which it permits the key 6 to be rotated to a position in which it is withdrawable from the other opening 5, the other member 3 being then trapped by the plunger 7 in the opening 2 into which it has been entered. As shown, the device comprises three plungers 7 which co-operate with spring-loaded pins 7<SP>1</SP>, slidably disposed in a plug 9 which is rotatably mounted in the body member 1, to prevent rotation of the plug 9 and, thereby, withdrawal of the key 6 associated with the plug, until the removable member 3, Fig. 4, is inserted in the aperture 2 is displace the plungers 7 and the pins 7<SP>1</SP> to a position which permits the plug 9 to be rotated allowing the key 6 to be withdrawn, this rotation preventing further movement of the plungers 7 and, thereby, removal of the member 3 from the aperture 2. The movement of the plungers 7 in the body member 1 is limited by a pin 15 engaging a portion 22 on each plunger, the portions being of reduced cross-section. The plungers 7 may be replaced by a stack of parallel plates disposed in a rectangular hole in the body member 1. The axes of the plug 9 and the aperture 2 may be other than parallel. The plug 9 is retained, in the body member 1, by a spring pressed detent 17 on the plug engaging a cavity 18 in the body member 1, and the upper end of the plug 9 is provided with projecting figures to receive only the correspondingly indented figured face of the key 6. The latter has a square shank 11 which fits into the opening 5 which is a square recess and, after rotation in the recess 5, is retained by a flange 20 against which it is urged by spring-biased plungers on the key 6. Alternatively the plug 9 may be associated with a separate lock secured to the body member 1, Figs 1-3 (not shown) and the lock may be of the figured type as described above or of the cylinder type. The member 3 and the body member 1 are respectively secured by screws or bolts to relatively movable parts such as a door and a frame.
Patent GB-752462-A (GB)
Title: Process for the preparation of hydrogen peroxide and the hydrogen peroxide so produced
Inventor: DUNLOP ARTHUR K
IPC: C01B15/043
Filed: 1954-02-15
Abstract: Hydrogen peroxide is purified by treating an aqueous solution thereof with an aqueous slurry of lime in the presence of phosphate ions, separating, washing and resuspending in water the calcium peroxide hydrate produced and finally regenerating the hydrogen peroxide by reaction of the suspension of calcium peroxide hydrate with carbon dioxide, preferably in the presence of phosphate ions.  The phosphate ions may be in the form of trisodium phosphate, potassium dihydrogen phosphate, disodium monohydrogen phosphate, orthophosphoric acid, sodium pyrophosphate, dipotassium dihydrogen pyrophosphate, lithium pyrophosphate, pyrophospheric acid and sodium metaphosphate.  The amount of phosphate ions, expressed as PO4, is preferably 0.01-10 per cent, more preferably 0.2-5 per cent, of the hydrogen peroxide in the crude solution.  The phosphate ions may be introduced in to the aqueous hydrogen peroxide feed to the process or may already be present in the crude solution.  The hydrogen peroxide treated may be produced by the vapourphase partial oxidation of gaseous paraffins as described in U.S.A.  Specification 2,376,257, the liquid-phase partial oxidation of secondary alcohols as described in Specification 708,339, or the use of intermediates such as 1, 4 - dihydrobenzene, 2 - ethylanthraquinhydrone or p - hydrazotoluene.  Commercial Commercial limes prepared by calcination of minerals containing at least 40 per cent of calcium carbonate may be employed.  The slurry may contain 1-25 per cent, preferably 3-15 per cent of lime expressed as as CaO.  A 5-10 per cent stoichiometric excess of lime is preferably employed.  The production of the calcium peroxide hydrate may be carried out at a temperature of 0-40 DEG C., preferably 0-20 DEG C.  Carbonation may be effected at a temperature of 30-80 DEG C., preferably 40-65 DEG C. and a pressure of 7-70 atmos, preferably 14.-35 atmos.  The slurry of calcium peroxide carbonated may have a solids content of 1-60 per cent, preferably 10-45 per cent.  The minimum residence time may be 0.5-6 minutes.  Carbonation may be effected in co - or countercurrent flow.  After separation of calcium carbonate, the aqueous hydrogen peroxide produced may be treated with a small amount of hydrochloric, sulphuric or phosphonic acid. Alternatively it may be passed through a cation exchange resin and then rectified.
Patent GB-191304-A (GB)
Title: Improvements in transmission-casing for motor cars
IPC: F16H57/02
Filed: 1922-02-15
Abstract: 191,304. Dehn, F. B., (Hudson Motor Specialties Co.). Feb. 15, 1922. Dust - excluding casings and gear-boxes. - A transmission casing 10 for Ford cars is provided with a side opening closed by a cover-plate 16', the latter having a flange 17 which overlaps the opening and a shoulder part 16<11> which fits wholly within the opening. The cover-plate is secured to the casing by bolts 20 approximately perpendicular to the longitudinal axis of the casing. An extension 11 of the casing houses the self-starting gear.
Patent GB-285380-A (GB)
Title: Improvements in and relating to the distillation of solvents from solutions and the deodorisation of oils, fats and the like
IPC: C11B3/14
Filed: 1928-02-13
Abstract: 285,380. Fauth, P. L. Feb. 14, 1927, [Convention date]. Fats and fatty oils, purifying.-Oils and fats extracted from seeds &c. are freed from solvent by atomizing the miscella into a heated chamber so that the solvent is vaporized and recovered, and are then deodorized by atomizing into a chamber through which steam or other gas is drawn in countercurrent by a vacuum pump. Oil solution is atomized from a distributing nozzle b into a steam-jacketed chamber c, and solvent vapours are drawn off by a pipe e to a condenser. The oil collects in a funnel g and passes into a chamber h with a steam-heated bottom i. Steam may be blown through oil therein and drawn off by a pipe m. The oil is led through a pipe k and a pressure pump l to an atomizing nozzle p in the top of the chamber o with a lower steam-jacket w. The slowly falling oil intimately contacts with steam at 100-120‹ C. or other gas which passes from a radial inlet tube r up through the chamber and is drawn off by a pump through a pipe s. A device t comprising a rotating roller arranged like a fan as shown is interposed in the pipe s to control pressure in the chamber o, which is preferably slightly above atmospheric. The oil collects on the bottom and is drawn off by a projecting pipe u allowing about 20 cms. to rest on the bottom' so that the steam passes through the oil. Several deodorizing chambers may be connected in series, the steam and oil passing through them in countercurrent. Specifications 157,1551, 214,478 and 283,216 are referred to.
Patent GB-161137-A (GB)
Title: Improvements in or relating to gauges
IPC: G01B3/40
Filed: 1919-12-30
Abstract: 161,137. Wickman, A. C. Dec. 30, 1919. Surface and outline gauges. Comprises a screw-thread snap gauge in which the inner faces of the anvils are bevelled or inclined from the testing edge portion. The invention is described as applied to a limit gauge. The anvils are adjustable in their borings, and the faces are of thread form, the threads being formed straight across the gauging face as the edge only is concerned in the gauging operation. The " go " anvils b, are of true thread form, but the " no go " anvils b<1> have only correct " effective " form, the tops and bottoms of the threads being removed to give ample clearance at these parts. The anvils are screw-threaded to receive a bolt e the head of which bears on a shoulder on the frame a, the bolt passing freely through a sleeve d screwed into the boring and through a steel ball f gripped between the ends of the sleeve and anvil. The anvils are prevented from turning in their borings, and when adjusted are sealed by lead seals h. The formation of the gauging faces enables wear to be compensated for by merely grinding the flat part of the anvil at the testing edge.
Patent GB-525025-A (GB)
Title: Improvements relating to flexible pocket receptacles
IPC: A45C1/06
Filed: 1939-02-11
Abstract: 525,025. Note cases. BUXTON, W. R. Feb. 11, 1939, No. 4574. Convention date, March 26, 1938. [Class 18] A note case of flexible material comprises a back 15, Fig. 1, members 17 stitched at the outer ends to the back and provided with downturned flaps 20 between which and the member 17 is an intermediate member 18, the latter having one or two tongues 23 which engage in slots in the doubled-over edge of the parts 17, 20 to allow of a limited sliding movement.. Flaps 22 integral with the back 15 are folded over on to member 17 and stitched at the outer ends to the back, the stitching extending at 37 to limit the size of the mouth of the rear pocket of the case. A loose, removable partition p is located in the rear pocket, this partition consisting of a rectangular strip, or of a backing strip with pockets the mouths of which face each other, or of a backing strip 26, Fig. 4, with integral flaps 28 folded on to the backing and stitched along the edges 29, the gap 30 between the flaps being filled by a strip which has tongue-and-slot connections 32 with the flaps. This form of partition is inserted in the case with its mouth downwards and like the previously-mentioned partition, it can be removed and used as a separate note case to be doubled over. Specification 440,047 is referred to.
Patent GB-525027-A (GB)
Title: A new or improved shutter wire-release supports for attachment to the bodies of photographic cameras
IPC: G03B17/56
Filed: 1939-02-11
Abstract: 525,027. Photographic shutter releases. LEWENT, H. Feb. 11, 1939, Nos. 4584 and 4585. Convention dates, July 2, 1938 and Aug. 9, 1938. [Class 98 (i)] A shutter release support for attachment to the bodv of a camera comprises a support for holding a wire release, having a spindle to screw into the tripodbush of the camera, the angular position of the wire-release being adjustable. In one form, the spindle s carries a sleeve in which the support b for the release rotates but may be fixed by a screw l ; or the spindle may be provided with a flat top, to which the support adheres by means of a rubber sucker ; or the screwed spindle, having the support integral therewith, may be provided with a locking nut.
Patent GB-286440-A (GB)
Title: Improvements in mowing and reaping machines
IPC: A01D34/33
Filed: 1927-04-13
Abstract: 286,440. Harrison, T. D. April 13, 1927. Reaping and mowing machines. - A connecting-rod of the type having a removable " point " 7 has the shank 7a of the point mounted in a split boss 5 adapted to be tightemed by a setscrew, bolt, or the like 10. The " point " is screwed into the boss and may be provided with holes 11 for the engagement of a pin key.
Patent GB-683603-A (GB)
Title: Improvements in or relating to electron discharge pick-up tubes suitable for use in television
Inventor: LUBSZYNSKI HANS GERHARD
IPC: H01J31/34
Filed: 1948-02-18
Abstract: 683,603. Electron image tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 26, 1949 [Feb. 18, 1948], No. 4696/48. Class 39(i) A cathode-potential-stabilised discharge tube 1 has a target electrode comprising a mosaic 5 of photo electric conducting elements on one side of a sheet 3 of partially conducting material of specific tesistance not greater than 10<SP>11</SP> ohm centrimetres. The leakage of charge from the elements to the signal electrode 4 takes two to three frame scan periods. The partially conducting material may be the so-called conducting glass having a specific resistance of 3.10<SP>10</SP>-10<SP>11</SP> ohm/cms. The scanning beam from electron gun 6, 7, 8 restores to cathode potential those elements of the target electrode which have been raised in potential by the incidence of an optical image. The signal may be taken from the signal electrode via amplifier 18 or from the electrons returning to the cathode which are multiplied in an electron multiplier.
Patent GB-1453874-A (GB)
Title: Printing plates
IPC: B41N1/06
Filed: 1974-02-01
Abstract: 1453874 Printing plates; etching SWISS ALUMINIUM Ltd 1 Feb 1974 [2 Feb 1973] 04749/74 Headings B6C and B6J [Also in Division C7] Printing plates, e.g. for relief printing or photogravure, are produced by annealing an Al/Zn alloy which has a zinc content of 0À2-10% Zn (by wt.), for 10-20 hours at 500-600‹ C., hotrolling, annealing at 250-450‹ C., cold-rolling, applying a partial coating of an acid-resistant material in selected places, and etching the uncoated parts with 5-30% aqueous hydrochloric acid. The alloy may be cooled to 400-450‹ C. before hot-rolling. A further cold-rolling step may be interposed between the hot-rolling and the second annealing. The plate produced has sides to the etched portions which form an angle of 70-75 degrees with the plate surface.
Patent GB-1454048-A (GB)
Title: Closures for containers
IPC: B65D41/28
Filed: 1974-02-01
Abstract: 1454048 Container closure with over and under pressure valves M BEHR [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR BEHR] 1 Feb 1974 [22 Feb 1973] 04804/74 Heading B8T A closure having automatically operating suction valve and pressure relief valve for a container 25 provided with an aperture 14, characterized in that the closure comprises a central part 3 having slots 8 and 9 and functioning, in use as a pressure relief valve, a closure cap member 1, the central part 3 being connected to the closure member 1 by means of a rivet 15 and being axially movable against the action of a compression spring 2, a suction valve part 4 having a bore 6 and an annular rim 13, the valve part 4 being guided centrally in the central part 3, and a spring connection comprising a leaf spring 5, which is disposed transversely through slots 8 and 9 and the bore 6, for connecting the valve part 4 to the central part 3. The suction valve part 4 is movable relative to the central part 3 against the action of the spring 5 when a suction occurs in the container 25. A sealing ring 12 which is disposed under the flange 10 of the central part 3 and against which the rim 13 of the suction valve part 4 abuts acts as a seat for that valve part. In another embodiment, Fig. 2 (not shown) the central portion (23) is axially slidable within a sleeve portion (16) of the cap (21) within limits imposed by the engagement of a shoulder (19), formed on an extension (18) of the central portion (23), with a projection (17) formed on the sleeve portion (16) and the sliding motion is facilitated by a groove formed below the shoulder (19). In this embodiment a sealing washer (26) is provided between the undersurface of the cap member (21) and the compression spring 2. The cap member, the central part and the suction valve part of the closure are made of synthetic plastics material. The sealing ring 12, and the washer (26) can also be made of any suitable material such as synthetic rubber. The cap of the closure may be dyed or made of coloured plastics.
Patent GB-341307-A (GB)
Title: Improvements in or relating to frictional clutches and reversing gearing
IPC: F16D23/02
Filed: 1930-02-13
Abstract: 341,307. Reversing-gearing ; friction clutches. HEGEMANN, 0., 34, Hausmann Strasse, and DORTMUNDER VULKAN AKT.-GES., both in Dortmund, Germany. Feb. 13, 1930, No. 4892. Convention date, June 24,1929. [Class 80 (ii).] In epicyclic reversing gearing suitable for ship propulsion the clutch for the ahead drive comprises a friction coil F with an auxiliary clutch L for starting its winding, in combination with an independent clutch J to speed up the parts initially to avoid shock. A sun gear B<2> fast on the propeller shaft G is initially at rest so that revolution of sun gear B<1> with engine shaft A causes gear casing D to turn at half speed. The coil F in casing E rigid with casing D is thus turning relatively to chilled iron barrel N at half speed. In applying the clutch, lever H is moved to the right. A cone 0 through levers H<1> then slides clutch J on feathers on shaft G to engage casing E. This is a partial engagement, which sets shaft G and drum N revolving. Further movement of cone 0 through levers H<2> presses friction disc K against casing E. Disc K has a cam connection K‹ with a feathered disc L which relative turning then advances into engagement with a friction ring M on the loose end of coil F. The coil F, which is secured to casing E, is now wrapped around the already rotating drum N without shock, and the gearing turns solid. Astern driving is obtained by moving lever H the other way, when the coil F is released and a brake T applied to the joined casings E, D.
Patent GB-348581-A (GB)
Title: Improvements in the manufacture of cakes of carbonic snow
IPC: C01B32/55
Filed: 1930-02-13
Abstract: 348,581. Solidifying carbon dioxide. FIEVET, H., 7, Avenue St. Maur, La Madeleine-lez-Lille, Nord, France. Feb. 13, 1930, No. 4917. [Class 8 (ii).] Carbonic acid snow is formed in a chamber 1 having an elastically mounted wall or cover 3 by the introduction of the compressed liquid through an orifice formed in a thin wall 13 and closed by a needle valve 15, the gas simultaneously produced passing out through a filter 17 and an orifice 32 leading e.g. to a pump or gas-holder. Annular grooves 28, 30 connected by radial grooves form passages for the escaping gas behind the filter, which rests on the ridges defining the grooves. The snow may be compacted by a plate 18 actuated by a handle 19 or a screw &c. The cover is secured by a hook 4 pivoted on the chamber and connected by a spring to the cover, and by a lever 6 containing an adjustable spring 21 ; alternatively, the cover may be resiliently secured to the chamber at several points.
Patent GB-490683-A (GB)
Title: Improvements relating to the manufacture of alternating electric current rectifiers
IPC: H01L21/16
Filed: 1937-02-18
Abstract: 490,683. Furnaces for oxidizing copper. WILLIAMS, A. L., THOMPSON, L. E., CUBITT, R. H., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Feb. 18, 1937, No. 4934. [Class 51 (ii)] Copper blanks for use as metal rectifier elements are oxidized in a furnace constructed of or lined with a non-porous material, such as silica, alumina, or nickel-chrome alloy. The air or oxygen which is supplied continuously to the furnace may be purified by bubbling it through nitric acid and pure water, and then passing it through a glass wool filter.
Patent GB-904504-A (GB)
Title: Improvements in or relating to the treatment of woven elastic web or like loom elastics or elastic braid
Inventor: WALLACE TOM BLUNDELL
IPC: D06N7/00
Filed: 1958-02-15
Abstract: A method of treating woven elastic fabric or elastic braid is characterized by parts of the braid or fabric being treated with an adhesive such as rubber latex whilst said part is in a tensioned or stretched condition whereby the adhesive is able to penetrate between the interstices of the woven material or braid to the actual threads of rubber or other elastic material of the web or braid in order to impregnate the latter so that said threads remain anchored in said part of the web or braid so treated even though they may be subsequently cut by a stitching needle.  The adhesive solution may be applied by roller or brushing or spraying.  The treated portions of the web or braid are preferably kept in an extended condition during part of the drying period.