baber/WOPTO huggingface dataset:
Patent GB-1369342-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D498/04
Filed: 1972-10-26
Abstract: 1369342 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 26 Oct 1972 [26 Oct 1971] 49402/72 Heading C2C Compounds of the general formula (R 1,2  = H, halogen, CF 3 , C 1-7  alkyl, alkylthio, alkylsulphinyl, alkylsulphonyl or alkoxy, CN, NH 2 , NO 2 , di-(C 1-7  alkyl)-amino, C 1-4  alkanoylamino; R 3  = H, C 1-7  alkyl, C 2-8  alkoxycarbonyl; R 4  = H, halogen, CF 3 , NO 2 , C 1-7  alkyl or alkoxy; R 5,6  = H, C 1-7  alkyl or alkoxy; X = O, S) are prepared by (a) reacting a compound of the formula with a compound of the formula  in the presence of a base, or (b) treating a compound of the formula with a base. The above compounds are anticonvulsants, muscle relaxants and sedatives, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1206477-A (GB)
Title: Process for preparing pyrocarbonate esters
Inventor: SUMIMOTO SHINZABURO
IPC: C07C68/06
Filed: 1967-11-01
Abstract: 1,206,477. Pyrocarbonate esters. SHIONOGI & CO. Ltd. 1 Nov., 1967, No. 49569/67. Addition to 1,130,271. Heading C2C. Esters of pyrocarbonic acid are prepared by reacting 1 mole of a naphthalene sulphonyl chloride of formula in which one or more of the hydrogen atoms may be substituted with a halogen atom or a nitro group with about 2 moles of one or more alkali metal carbonate half esters of general formula MeOCOOR<SP>1</SP> in which Me is sodium or potassium, and R<SP>1</SP> is a C 1 -C 3  alkyl group or an aralkyl group, e.g. a benzyl group. In the examples diethyl pyrocarbonate [O(COOC 2 H 5 ) 2 ] is prepared by reacting (a) naphthalene-1-sulphonyl chloride; (b) naphthalene-2-sulphonyl chloride; (c) naphthalene-1,5-disulphonyl chloride; (d) naphthalene-2,7-disulphonyl chloride; (e) naphthalene-2,6-disulphonyl chloride, and (f) naphthalene-1,3,6-trisulphonyl chloride.
Patent GB-1063480-A (GB)
Title: Two-stroke internal combustion engines
IPC: F01L7/12
Filed: 1963-12-17
Abstract: 1,063,480. Two stroke I. C. engines; valve gear. VILLIERS ENGINEERING CO. Ltd. and B. HOOPER. Nov. 2, 1964 [Dec. 17, 1963], No.49893/63. Heading F1B. In a two-stroke I. C. engine in which each piston rod 10 is connected to a pair of discs 11 which are closely confined by the crank-case 13, each cylinder 14 is supplied with fuel/air mixture through an inlet port 17 in the crank-case wall controlled by a crank-shaft driven rotary valve 19 mounted with its axis of rotation parallel _ to the crank-shaft axis. A carburetter 15 supplies fuel/air mixture through passages 16 to each cylinder of a twin-cylinder engine. The valve shaft 20, carrying a valve 19 at each end, is driven by spur gears 21, from the crank-shaft.
Patent GB-1537247-A (GB)
Title: Separating thermoplastic materials from a moist mixture of paper and plastics
IPC: B09B3/00
Filed: 1975-12-05
Abstract: 1537247 Separating plastics from paper SVENSKA FLAKTFABRIKEN AB 5 Dec 1975 [6 Dec 1974] 50007/75 Heading B2P A method of separating film-like thermoplastics material from a moist mixture of such material and paper comprises drying the mixture and releasing the moist gases produced by the drying operation, heating the dried mixture in a dry gas stream to cause the plastics material to form into pieces of smaller surface area per unit weight and separating the said pieces from the paper, the exhaust gas from the heater being fed to the inlet of the drier. The mixture is fed to the apparatus at 21 and dried while being pneumatically conveyed through columns 22. The moist gases produced are released at 25 and the mixture passes via a cyclone 24 to a heating column 23 in which the thermoplastics material contracts into compact pieces. These are removed at 38 from the hot gas stream by a cyclone 37 whereas the paper is carried along to a cyclone 40. The paper passes to a baking press 41 and the hot gases pass to the inlet of the drier 22 via a duct 29. The flow of hot gases from a furnace 26 and fresh air is controlled by valves 32, 33, 31 and 34 responsive to temperature sensors at 25 and 35. In another embodiment Fig. 4 (not shown) the heating column 23 is of a two stage design and the mixture is fed to a cyclone separator 37 from above. Reference has been directed by the comptroller to Specification 1394971.
Patent GB-1472557-A (GB)
Title: Mine conveyor systems
IPC: E21F13/08
Filed: 1974-11-19
Abstract: 1472557 Longwall mine conveyer systems COAL INDUSTRY (PATENTS) Ltd 16 Sept 1975 [19 Nov 1974] 50091/74 Heading B8A Sensor means 14 measures movement of roof supports 1, 2, relative to each other, at least one-of the supports being connected by a jack 8 to a mine face conveyer 6, there being a control system 12 preventing either support being released from engagement between the roof and the floor, if the other support is also released. The relative movement may be given as a visual indication to an operator on a longwall face or may be shown on a control panel in a roadway. The indication may be cumulative from a zero set on an initial base position. The sensor means may be a linear transducer, e.g. a sliding potentiometer; or a step-impulse transducer, e.g. a pawl and ratchet, or reed-switch arrangement. As shown, each support 1, 2, is connected by a respective jack 8 to the conveyer 6. In a modification, the jack 2 of the support 2 may be replaced by a short chain or rope or other lost motion device. Alternatively the means for moving the support 2, may be connected to the support 1, instead of the conveyer.
Patent GB-1202699-A (GB)
Title: Improvements in or relating to electric switches
Inventor: EVANS MICHAEL DAVID
IPC: H01H13/58
Filed: 1966-11-10
Abstract: 1,202,699. Mechanical switches. N.S.F. Ltd. 10 Nov., 1967 [10 Nov., 1966], No. 50375/66. Heading H1N. A push-on, push-off switch comprises a body, a spring-biased plunger 7, a rotor 28 having a plurality of radially outwardly projecting arms 29, 29<SP>1</SP>, 29<SP>11</SP> with sloping lateral faces 37, rotor 28 being capable of rotational and axial movement relative to plunger 7, an axially movable detent member 30 frictionally engaged with plunger 7 and having a plurality of axially extending teeth 31 to engage the sloping faces of rotor arms 29, 29<SP>1</SP>, 29<SP>11</SP> and fixed detents 32 having cam portions 38 engageable by the sloping faces of rotor arms 29, 29<SP>1</SP>, 29<SP>11</SP>, rotor 28 being axially resiliently biased by spring 35 towards detent member 30 and detents 32. Depression of plunger 7 depresses detent member 30 axially which moves rotor 28 axially and rotates it so that two arms 29<SP>1</SP> engage under detents 32 to hold plunger 7 down. A further depression of plungar 7 again moves rotor 28 axially and rotates it to free the arms 291 from the detents 32. Plunger 7 carries contact carrier 9 holding two moving contacts 23 which bridge a pair of fixed contacts 27 in each position. Fixed contacts 27 pass through the halves 1, 2, Figs. 2-5 (not shown), of the body and are bent at their ends to hold the halves together. Interlocking lugs 3, 3<SP>1</SP>, 4, 4<SP>1</SP>, Fig. 2, align the halves 1, 2. A number of switches may be mounted in cutaways 44, Fig. 7 (not shown), in the webs of a channel-section support 41, Figs. 7, 8 (not shown), being retained by lugs 3, 3<SP>1</SP>, 4, 41 which are secured between the webs by bending the edges of the webs.
Patent GB-1535724-A (GB)
Title: Apparatus and method for dispensing sheets of wrapping material
IPC: B65H35/00
Filed: 1974-11-20
Abstract: 1535724 Dispensing sheets from continuous roll G E LETT 19 Nov 1975 [20 Nov 1974 25 July 1975] 50397/74 and 31328/75 Heading B8M [Also in Division B4] A web of unperforated plastics material in the form of a roll 8 has its free end passed over a roller 6 having a blade movable relative to the roller to perforate the web and then over a severing means 17 so that on pulling the free end of the web a line of perforations extending across the web is formed at intervals along the length of the web and the web is severed at each line of perforations as the line passes severing means 17 to give a sheet of wrapping material. As disclosed the perforating roller 6 has a longitudinal slot 19a, Fig. 9, in its periphery 19 and a rectangular frame of sides 22a, 22b carrying a row of perforating spikes 24 fixed to one long side of the frame. The cylinder and frame rotate together about fixed shaft 25. Cams 28 fixed to shaft 25 are pressed against the side of the frame carrying perforating spikes 24 by a bowed spring 29 fixed to the opposite side of the frame. The cams cause the row of spikes 24 to emerge from slot 19a once in each revolution of roll 6. There may be more than one slot through which a row of perforating points emerges in each revolution of roll 6. Guide rollers 10, 11 are provided to ensure that the web passes around a substantial part of the circumference of roll 6. Roll 11 rotates about shaft 12 in slots 13 and can be removed to facilitate threading the web around the rollers to produce the path shown in Fig. 4 by swinging back pivoted trunnion 14. Preferably the web roll, of cling film or polythene wound on a cardboard former 9, is rested on roller 6 and a support roller 7 which is braked by tensioner spring 18. The tapered severing means 17 projects away from the perforating apparatus so that the free end of the web may be conveniently grasped. A work-table 16 facilitates wrapping. It may be heated to seal the wrapped package or a hot plate may be provided. Two perforating rolls (6A, 6B, Figs. 12-14, not shown) of different diameter and/or having a different number of perforating means may be mounted on either side of roll 8 so that sheets of different length may be obtained. Longitudinal movement of roll 8 may be prevented by means of two abutment members (60, Figs. 15-16, not shown) each comprising a conical part (61) and a flange part (62) which fits into an end of former 9 so that the conical part touches the respective side wall 2 of the dispenser. Reference has been directed by the Comptroller to Specification 1482193.
Patent GB-1061814-A (GB)
Title: Foundation glasses
IPC: C03C4/08
Filed: 1965-11-30
Abstract: A foundation glass serving as a carrier or capable of serving as a carrier for a thermal absorption medium is melted from a mix comprising, in parts per cent of the total mix, of aluminium metaphosphate 50 to 95% and zinc orthophosphate 50 to 5%, the balance of the mix, if any, comprising compatible constituents. Up to 10% by weight of the total mix may consist of one or more of the following, SiO2, B2O3, AlPO4, ZnO, ZrO2, Ta2O5, Mg11 (PO3)2. The absorption media is a compound of divalent iron such as ferrous sulphate, ferrous oxide or ferrous oxalate.
Patent GB-1270599-A (GB)
Title: Cutter for tiles and the like
Inventor: GOODWIN JOSEPH TREVOR
IPC: B28D1/22
Filed: 1969-10-16
Abstract: 1,270,599. Tile cutter. JOHN M. PERKINS & SMITH Ltd. 18 Jan., 1971 [16 Oct., 1969], No, 50835/69. Heading B5E. [Also in Division C1] A tool for cutting glazed tiles, panes of glass and the like, comprises a steel shank 1 having a conical carbide tip 4 secured to one end. The shank is made of round or other stock forged or rolled to produce a series of longitudinal ribs to form a handle portion and increase its resistance to bending. A rubber or plastics sleeve 7 may protect the user's hand. The cutting tip 4 is secured, e.g. by brazing, in a bore 9 at the end of the shank and has a right circular conical shape matching a tapered portion 8 of the shank or set forward to form a step between the tip and the tapered portion.
Patent GB-1248439-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C9/20
Filed: 1968-10-28
Abstract: 1,248,439. Pneumatic tyres. MANUFACTURA NACIONAL DE BORRACHA S.A.R.L. 28 Oct., 1968 [9 July, 1968], No. 50964/68. Heading B7C. In a pneumatic tyre having a carcass A of rubberized plies of parallel radial cords and a tread reinforcement B of superposed cross-laid rubberized plies of parallel metal cords, the tread C is cushioned on the plies B by superposed cross-laid rubberized plies D of parallel cords of synthetic fibres. Circumferentially extending rubber strips E are provided one at each axial extremity of the layers B and D. The synthetic fibres form an angle of 20-60 degrees with the mid-circumferential plane of the tyre, this angle being greater than the angle formed by the metal cords B with the same plane.
Patent GB-1151010-A (GB)
Title: Machine for Deburring the Rails of Railway Track.
IPC: E01B31/17
Filed: 1967-11-09
Abstract: 1,151,010. Grinding rails in situ. SPENO INTERNATIONAL S.A. 9 Nov., 1967 [8 Aug., 1967], No. 51086/67. Heading B3D. A machine for deburring the rails of a railway track in situ comprises a vehicle adapted to run on the track and carrying on each side at least one grinding unit, each unit comprising a grinding wheel 6 and motor 7, the grinding wheel presenting one of its flanks against the inside surface of the head of the rail, means being provided to press the grinding wheel against the rail with a constant but adjustable pressure and to alter the inclination of the grinding wheel relatively to the plane of the track. The vehicle runs on two pairs of wheels 4 and, as described, has five grinding units on each side, all the units on one side being adjusted to different inclinations so as to grind a curved profile on the rail. The grinding wheel of each unit is driven by bevel gearing from its motor and the unit is supported by a pivot 19 adjustably clamped in blocks 18 vertically adjustable on a carriage 16 movable along the horizontal arms of a pair of brackets 8 secured to the frame of the machine. Movement along the arms is effected by levers 25 acted upon by a counterweight, springs or hydraulic motor to press the grinding wheel against the rail. The grinding wheels of opposed pairs of units can be retracted horizontally away from the rails in unison by hydraulic jacks 14, 15 which move projections 32 into engagement with the levers and can be raised in unison above the level of the rails by hydraulic jacks 10, 11 raising a frame 28 carrying the brackets 8. The grinding wheels may be of ceramic grit or diamond dust or comprise metal abrasive discs with blades or burrs.
Patent GB-510949-A (GB)
Abstract: 510,949. Dihydrofuranes. JOHNSON,G; W. (I.G. Farbenindustrie Akt.-Ges.). Feb. 7, 1938, No. 3799. [Class 2 (iii)] Dihydrofurane or methyl derivatives thereof are prepared by contacting butene-2-diol-1, 4 or methyl derivatives thereof at a temperature above the boiling point of the dihydrofurane with a non-volatile dehydration catalyst solid under reaction conditions, and removing and condensing the vapours formed. Methyl derivatives mentioned are the 1,4 dimethyl and 1, 1, 4, 4-tetramethyl. Suitable catalysts are oxides of aluminium, titanium, zirconium or thorium, neutral phosphates of aluminium, iron,'cerium, silver or uranium, silicic acid gel, bleaching earths, or carrier substances' impregnated with non-volatile acids e.g. phosphoric acid. The starting material in gaseous phase may be led, mixed if desired with an inert gas or under reduced pressure, through a tube containing the catalyst heated to 200- 300‹C. or more, or the liquid starting material may be heated with the catalyst to such a temperature that the products distil off with the water substantially as rapidly as formed. The dihydrofuranes may be dried with calcium chloride, potassium carbonate or sodium sulphate, or by fractional distillation. The starting materials may be prepared according to the process of Specification 508,543.
Patent GB-1316474-A (GB)
Title: Method for producing french fried potatoes
IPC: A23L19/18
Filed: 1970-10-29
Abstract: 1316474 Dehydrated potato product A E STALEY MFG CO 29 Oct 1970 [4 Nov 1969] 51385/70 Headings A2B and A2D [Also in Division C3] A binding composition which may be mixed with dehydrated potato and water to give an extrudable dough for making French fries comprises an edible amylose starch component and a temporary binder which is an edible cold water dispersible starch component and/or a water dispersible edible vegetable gum wherein the amylose starch component comprises more than 25% by weight of amylose and constitutes 50-90% by weight of the binding composition and the cold water dispersible starch component and/or water dispersible edible vegetable gum is 10-50% by weight of the binding composition. A dry potato product for mixing with water for making French fried potatoes from finely divided dehydrated potatoes comprises (A) from 50-92% by wt. of dehydrated potato particles smaller than 5 mesh, (B) 4-45% by wt. of an edible amylose starch component containing more than 25% by weight of amylose, (C) from 1-25% by wt. of the temporary binder and (D) less than 15% by wt. of taste and texture-modifying components, for example salt. The potato product is formed into the desired shape and the formed shapes fried until brown in frying oil at a temperature in excess of 250‹F.
Patent GB-987653-A (GB)
Title: Improvements in or relating to sound systems for picture slides
IPC: G03B31/06
Filed: 1963-04-30
Abstract: 987,653. Audiovisual record assembly. ATRON CORPORATION. April 30,1963 [May 4, 1962], No. 51462/64. Divided out of 987,652. Heading G5R. An annular holder for a slide 41 contains a circumferential groove engaging an annular sound record 35 and acting as a bearing during record rotation. The holder (Fig. 2) comprises two separable pieces-an annular member 21 axially thickened at the inner rim 23 and an annular ring 25 which fits tightly on shoulder 27 of member 21. A stop 29 is arranged to leave a space between parts 25 and 31 to support the inner rim of the sound record 35. The hub members are composed of a low friction material to ensure smooth rotation of the record which is rim driven. The slide 43 in its cardboard mount 41 (Fig. 1) is arranged in the central circular aperture 37 of the holder by a frictional press fit between the corners of the mount and notches 39 in member 21. For use in combined epi- and diascopic apparatus, as described in Specification 987,652 episcopic slides have an aperture 213 associated with photo-electrically controlled lamp-switching means.
Patent GB-1142679-A (GB)
Title: Improved method of forming a releasable joint between two edge portions of flexible sheet material
Inventor: MITCHELL SIDNEY
IPC: B63C9/08
Filed: 1966-11-17
Abstract: 1,142,679. Storing inflatable craft. R.F.D. CO. Ltd. 14 Nov., 1967 [17 Nov., 1966], No. 51580/66. Headings B7G and B7S. [Also in Division E2] A method of forming a releasable joint between two edge portions 2, 3 of flexible sheet material 1 comprising the steps of in turning back one of said edge portions 2, securing it to itself so as to provide a flattened tubular fluidtight chamber, providing stiffening means 8 along sadi other edge portion to maintain the latter portion substantially flat and securing the other edge portion 3 to one of the flattened walls of said chamber with securing means of such strength that when said chamber is inflated the pressure of inflation will break said securing means. In the construction shown the flexible sheet material is in the form of a strap which surrounds a life raft or an escape shoot, the extremity 4 of the end edge portion 2 of the strap is turned back and the turned back portion is secured by stitching or other means to the main body of the strap 1 to provide the fluid tight chamber. The other edge portion of the strap is also turned back on itself and secured to the main body of the strap to form a pocket which extends transversely of the strap and in which the stiffening means, which is in the form of a board 8, is inserted. In the construction shown the edge portion 3 is secured to a wall 9 of the chamber 6 by means of adhesive 10 which is applied along a narrow transverse path between the overlapping portions 2 and 3; in modifications however one or more rows of stitching or one or more press studs are substituted for the adhesive. The chamber is inflated by gas from an inflation unit which is connected to the chamber by a flexible duct 11 and which expands the chamber to peel the edge portion 2 away from the edge portion 3 so that the adhesive, the stitching or the press stud or studs no longer hold the two portions together. The inflation unit comprises a receptacle containing gas under pressure, a strap holding the receptacle in position and gas release mechanism which is adapted to be actuated by a thumb lever. The thumb lever when actuated ruptures a disc in the receptacle which allows the gas to pass into the chamber 6. However in the case of an inflatable lifesaving apparatus the chamber 6 is connected to the inflatable part of the apparatus via a valve. Instead of the lever being actuable by hand the lever can be depressed by a spring mechanism normally rendered inoperative by a water soluble plug so that immersion of the inflation unit in water would cause the plug to dissolve and thereby automatically release gas into the chamber 6.
Patent GB-1136767-A (GB)
Title: Web supporting rollers
Inventor: EVANS RAYMOND VICTOR
IPC: B65H27/00
Filed: 1965-12-06
Abstract: 1,136,767. Feeding webs. SINGER-COBBLE Ltd. 16 Nov., 1966 [6 Dec., 1965], No. 51590/65. Heading B6B. [Also in Division F2] Weft straightening apparatus for a materia<SP>1</SP> web 22 such as carpeting material comprises a pair of flexible nip rollers 21, each being provided with a plurality of adjustable support rollers 23, adapted to control the curvature of individual and successive regions of the rollers. Each roller 21 comprises a flexible shaft (11, Fig. 1), a first resilient sleeve (13) and a plurality of spaced ball or roller bearing units (14) positioned between the sleeves and upon which the second sleeve (13) rotates relative to the first sleeve (12). In an alternative roller construction (Fig. 3) the shaft comprises a rod of rectangular cross-section, flexible in one plane but rigid in the other. A resilient material is interposed between the rod and the first sleeve. A further sleeve of resilient material may be interposed between bearing units (14) and the second sleeve (13).
Patent GB-1464784-A (GB)
Title: Apparatus for dispersing gases through liquids
IPC: C12M1/06
Filed: 1974-11-28
Abstract: 1464784 Agitating and aerating liquids H MULLER 28 Nov 1974 [4 Dec 1973] 51627/74 Heading B1C Apparatus for dispersing gases in a fermentation liquid comprises a container 1 with a centrifugal impeller 5 having radial vanes 10, an axial extension 8 rotating with the impeller, and a second venturi-like axial extension 9. Liquid circulates downwardly through the fixed tube 11 and is ejected between the vanes 10, while gas is induced through the coaxial fixed tube 12 and rotatable impeller extension 8 and is ejected through funnelshaped elements 15, the impeller being rotated with the apices of the funnels leading. Part of the gas flow also passes through the apertures 14 to disperse in the circulatory liquid. In a modification (see Fig. 3, not shown) the elements 15 are supplied with gas through a passage in the impeller shaft so that the flow paths are kept separate and two gases which must not come into contact before dispersion (e.g. air and methane) may be fed in.