baber/WOPTO huggingface dataset:
Patent GB-1177228-A (GB)
Title: Magnetic-Pulse High-Speed Forming of Metallic Workpieces
IPC: B21D26/14
Filed: 1967-04-07
Abstract: 1,177,228. Electromagnetic forming. SIEMENS A.G. 7 April, 1967 [9 April, 1966], No. 16166/67. Heading B3Q. A field concentrator for electromagnetic forming comprises a plurality of axially-slit, truncated conical shells 12 insulated from one another, the concentrator fitting within a forming coil 11 with the ends of the shells projecting outside the coil for surrounding part of a workpiece 14 to be crimped to a member 15. The shells are made from copper alloy and/or aluminium alloy of tensile strength greater than 30 Kg/mm.<SP>2</SP> and apply the forming pressure uniformly or non-uniformly along the workpieces, depending upon whether the outside heights "h" of the shells or the inside heights are equal or unequal. Because of loss due to return of current along the inside of the inner shell, its external height is greater than the others. Such return may be discouraged by one or more axial slots in the projecting parts of the shells, the ends of the seats being close to the ends of the shell and the slots in adjacent shells being out of alignment. The shells are supported by parts 13 of hardened fabric. Reference has been directed by the Comptroller to Specification 896,923 and 1,015,833.
Patent GB-1222982-A (GB)
Title: Apparatus and method for making bundles from plastics sheets
Inventor: DETTMER EDWARD VALENTINE
IPC: B29C65/78
Filed: 1968-04-04
Abstract: 1,222,982. Laminating apparatus; stacked plastics sheets joined at edges. DOW CHEMICAL CO. 4 April, 1968 [6 April, 1967], No. 16174/68. Headings B5K and B5N. Apparatus for connecting a stack of superposed horizontal, non-planar sheets of synthetic resin at the four vertical faces of the stack, which vertical faces have openings therein due to the non-planar form of the sheets, comprises means for aligning the edges of the sheets to form the vertical faces, first and second heating means adapted to engage opposed vertical faces and fuse the sheets together without closing the openings in these faces, means for disengaging the heating means from the stack, means for rotating the stack through 90 degrees about a vertical axis and means for engaging and fusing the sheets together at the other two vertical faces. The sheets may be corrugated. The finished stacks are for use in the treatment of waste water or other liquid, the liquid being run over surfaces defined within the stack and thus contacted by air. As shown, the apparatus includes a conveyer 53 for moving a stack (not shown) of unconnected sheets, which have been arranged against an upright 78, to a space within a frame 42, 43. Four members 125 (only one clearly shown) are swung into contact with the vertical faces of the stack to align the sheets. A holding disc 196 is then urged downwardly on to the top of the stack to maintain this alignment. Two heated platens 80 and 84, the operative surfaces of which are covered by heat-resistant curtains 149, are moved into contact with two opposed vertical faces of the stack to effect the fusing together. The platens are then withdrawn and each curtain 149 is stripped from the stack by two co-operating rolls, Fig. 3 (not shown). Cooling air is directed on to the sealed faces by means (not shown). The stack is then moved by shoes 68 and 69 on to a turntable 199, where it is rotated through 90 degrees before being moved into a space enclosed by a second frame 198. Frame 198 supports apparatus, similar to that supported by frame 42, 43, for fusing the sheets together at the other two vertical faces of the stack.
Patent GB-855670-A (GB)
Title: Means for advancing mine supports
IPC: E21D15/60
Filed: 1957-05-22
Abstract: 855,670. Advancing mine props or chocks. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SCHWARZ KOMM.-GES. H.], May 22, 1957 [June 19, 1956], No. 16212/57. Class 20(2) [Also in Group XXX] Hauling means for withdrawing, erecting or displacing mine props &c. 1, Fig. 6, by a rope or other flexible hauling element are mounted on the framework of a face conveyer 9. In one form, Fig. 2, the hauling means comprises a winch drum 3 journalled in a frame which is either secured to the framework of a scraper face conveyer or, as shown, provided with rollers 12, 13 by which it is guided for movement along the conveyer framework. The winch drum is driven by an internal compressed air motor controlled by handle 8 Alternatively, as in Fig. 4, the winch drum may be driven by engagement of a sprocket 16 with a chain 24 of the face conveyer, the sprocket 16 being connected with the winch drum through bevel gearing, or by engagement of a star wheel 17, Fig. 5, with the scraper bars 18 of the face conveyer. In another form, Fig. 6, the hauling means comprises a sheave 20 on the conveyer framework and a rope 4 which is secured at one end to the mine support 1 and extends around the sheave 20, the other end of the rope 4 being provided with a hook 21 adapted to be engaged with the chain 24 or with a passing scraper bar. The hook 21 includes a lug 23 adapted to ride up a cam surface 22 on the conveyer framework to automatically disengage the hook 21 after it has moved a predetermined distance. The conveyer is advanced by a cylinder 10 and a sprag 11 engaging the roof.
Patent GB-1509698-A (GB)
Title: Rapid-drying printing ink and a printing process using same
IPC: C09D11/10
Filed: 1976-04-22
Abstract: 1509698 Preventing set-off O & R INKTCHEMIE NV 22 April 1976 [23 April 1975 28 Jan 1976] 16286/76 Heading B6C [Also in Division C3]  Relief or planographic printing is performed using an ink comprising fine granules of a modified starch or starch derivative which, in the presence of water, swell to a limited extent. The effect of the swelling is that globules are formed which project slightly above the printed ink layer, and these prevent spoilage of the fresh ink surface and transfer of ink when a subsequent printed sheet lands on the first. The water need not be specifically supplied, as some ambient water is always present, e.g. in the air, or it may be in the ink, the printing plate, or the material to be printed. The material to be printed should be absorbent. The ink also comprises a non-polar solvent, a colophony-modified phenol- or cresol-formaldehyde resin, a cross-linkable unsaturated polyester, a peroxide catalyst, and a pigment. The ink dries rapidly on heating especially by IR radiation.
Patent GB-1422516-A (GB)
Title: Preparation of phthalic anhydride
IPC: C07B61/00
Filed: 1974-04-11
Abstract: 1422516 Phthalic anhydride RHONEPROGIL SA 11 April 1974 [11 April 1973] 16290/74 Heading C2C Phthalic anhydride is prepared by oxidizing o-xylene in tubes in a reactor, the tubes having an internal diameter of 19 to 25 mm. and containing particles of a catalyst comprising titanium oxide and vanadium oxide deposited on a carrier based on a refractory compound coated with glaze, which catalyst has an equivalent mean diameter of 4 to 8 mm. and is disposed over a length of 1À20 to 2À20 m. of the tubes and the tubes are of sufficient length that a free space is left at the end near the walls of the reactor, at a temperature of 360‹ to 400‹ C., with a weight ratio of air to o-xylene of 18 : 1 to 24 : 1 and an hourly flow rate of the gaseous mixture of 3000 to 6900 g. per litre of catalyst used, collecting the product by condensing it, heating the condensate in the presence of at least one sodium salt for 1 to 6 hours at 240‹ to 285‹ C. and recovering the phthalic anhydride, and subjecting the effluent gases to post-combustion.
Patent GB-407308-A (GB)
Title: Improvements in and connected with sanding nozzles
IPC: B24C5/04
Filed: 1932-06-09
Abstract: 407,308. Sand-blast. KARMINSKI, M., 30, Rue Boissiere, Paris. June 9, 1932, No. 16328. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 10, 1932]. [Class 60.] A nozzle for use in sand-blasting &c. consists of a steel or iron portion 1 having at its delivery end a replaceable ring 2 of tungsten carbide or like hard substance. In a modification, the interior of the main portion of the nozzle is lined with caoutchouc, and in a further modification, Fig. 3, the portion 1 is fitted with a liner 9 of the hard substance, held in position by lead, tin, &c. 7 poured whilst molten through a hole 8, and the ring 6 of hard substance may be bevelled to facilitate fixing.
Patent GB-389688-A (GB)
Title: Improvements in automatic machines for boring, milling, screw-cutting and the like
IPC: B23G11/00
Filed: 1932-06-09
Abstract: 389,688. Making steam generators, radiators, &c. COLLET & ENGELHARD WERKZEUGMASCHINENFABRIK AKT.- GES. and SCHARFF, W., 130, Bernardstrasse, Off enbach-on- Main, Germany. June 9, 1932, No. 16336. [Classes 83 (ii) and 83 (iii).] Drilling-machines , tapping.-In an automatic machine for machining parts of heating devices, such as radiators, sectional boilers, &c. in large quantities, the work-pieces are carried by a chain conveyer to tools for boring and rough facing the holes therein and then to tools for tapping the holes and finishing the faced surfaces, after which the pieces are carried to a delivery station. After being machined on one face, the work-pieces are returned to the machine for operation on the other faces. The machine comprises a boring and facing head Sr, Fig. 2, arranged above the tapping and finishing head Sl and a chain y having brackets x secured thereto for receiving the work blanks e. The boring spindle o is splined within a driving sleeve m and is fed by a screwed extension p thereon engaging an internal thread on a sleeve n which also has external threads of different pitch engaging internal threads on the sleeve m, the sleeve n being splined within the machine casing to prevent rotation thereof. The boring cutters a and facing cutters b, Figs. 1 and 2, are preferably of hard high-speed steel and are rotated at high speed with a slow rate of feed imparted by the differential screws. The tapping spindle u, which carries a tap c, Figs. 1 and 2, is fed bv a screwed sleeve r and nut s and is surrounded by a splined driving sleeve z which carries the cutters d for finishing the faced surfaces on the blanks. During the first portion of the tapping operation the facing cutter is fed with the tap through a spring t but when a collar v on the sleeve z engages an abutment w, the tap advances alone and the cutter d remains axially stationary to polish the faced surfaces. Work-holders ; work gripping and mounting.- Mounted on slides h, Fig. 2, between the upper and lower tool heads Sr, Sl respectively are frames g, Fig. 3, carrying adjustable abutments l and clamps i for holding the work blanks e during machining. The clamps i are operated by pneumatic cylinders k, which are controlled automatically in timed relation with the conveyer chain y. The frames g are moved laterally after each machining operation to allow the work to be moved on by the chain. Blanks, transferring.-The work-pieces e are placed within the grippers x of the feeding chain y at the upper horizontal portion and are delivered from the machine at the station Ab, the weight of the blanks on the vertical portion of chain adjacent the tools serving to displace the chain.
Patent GB-517723-A (GB)
Title: Improvements relating to window raising and lowering mechanisms
IPC: E05F11/38
Filed: 1939-05-24
Abstract: 517,723. Vehicle-window operating mechanism. WILMOT-BREEDEN, Ltd., and SMYE, A. May 24, 1939, No. 16361/38. [Class 20 (iii)] Window raising and lowering mechanism comprises a lever a pivoted at its free end to an intermediate portion of a link f, one end of which is pivoted to a slide q on a guide r, the other end being pivoted to a bracket i attached to a channel-bar j which supports the window g, and a second link s pivoted at its ends to the slide and bracket, respectively, and adapted to form a parallel link with the link f. The lever a may be attached to a toothed sector-plate b adapted to be driven through a gear c and handle d, or the sector-plate may be driven direct from a handle.
Patent GB-624259-A (GB)
Title: Improvements in means for controlling the temperature and energy input of electric hot-plates
IPC: H05B1/02
Filed: 1947-06-21
Abstract: 624,259. Electric hot-plate. JELSON ELECTRIC, Ltd., and MOULSON, J. P. June 21, 1947, No. 16423. [Class 39(iii)] [Also in Groups XXXV and XXXVII] A hot-plate 1 has on its underside - two sets of differently rated heating elements and a twin thermostatic switch (see Group XXXVII), one thermostatic switch A cutting out the first set of heating elements 2 upon a predetermined simmering temperature being exceeded and the second thermostatic switch B cutting out the remaining set of heating elements 3 upon a predetermined boiling temperature being exceeded. A simmering temperature is finally maintained by means of a handoperated switch S, one setting of which removes the higher-wattage heating element 3 from the circuit or a second setting of which connects in series the two sets of heating elements and their thermostatic switches. There may be one or more auxiliary heating elements not thermostatically controlled. Specification 571,136, [Group XXXVII], is referred to.
Patent GB-1473341-A (GB)
Title: Manufacturing superconductors
IPC: C22F1/00
Filed: 1974-04-16
Abstract: 1473341 Making superconductors REACTOR CENTRUM NEDERLAND (STICHTING) 16 April 1974 [17 April 1973] 16440/74 Heading H1A [Also in Division C7] A powder component comprising at least one alloy and/or compound of a Group VB metal with at least one of the elements of Groups IIIA and VA with optional additions of powders of the latter element(s) is inserted in a tube of the Group VB metal, the assembly is reduced in diameter by mechanical deformation and then heat treated to produce a superconductor layer not previously present in the powder.
Patent GB-236729-A (GB)
Title: Improvements in and relating to gaiters or means for lubricating vehicle and like springs
IPC: F16F1/24
Filed: 1924-07-09
Abstract: 236,729. Ramsden, H. July 0, 1924. Gaiters.-A spring gaiter is provided with a reservoir or conduit of collapsable form and having one or more porous walls, the reservoir retaining temporarily a charge of lubricant and delivering it gradually through the porous walls. A tubular reservoir b, Fig. 1, of woven fabric and provided with an inlet valve c for lubricant is secured to a grease-proof lining a by turning over on to it the ends a<2> of the lining and stitching them down. As shown in Fig. 1, the reservoiris arranged centrally on the lining to adapt it to rest on the top of the spring, but it may be located at one edge of the lining to bring it against the underside of the spring. A light leaf spring may be placed on the conduit to assist in pressing out the lubricant. In another modification, the reservoir rests on the spring and narrow strips of absorbent wick, one at each side of the lining, are adapted to lie side by side against the underside of the spring. The reservoir b, Fig. 13, is combined with wicks d<3>, d<4>, d shaped and disposed to fit the sides and bottom of the spring, the side wicks in some instances presenting serrated edges to the reservoir to facilitate absorption of the lubricant. In other forms, two, three, or four reservoirs are used, the reservoirs b<2>, b<3>, Fig. 24, being either provided with separate inlet valves or connected to one another and to a single valve c by a tube e. The reservoir b, Fig. 39, is formed with side passages f leading to edges g of wick material, or formed as supplementary reservoirs, the arrangement providing spaces f<2> in which the lubricant can collect. The side passages f may be placed more closely together towards the extremities of the spring and may be arranged obliquely to the reservoir b. The side passages f<3>, Fig. 42, on one side of the side passage f opposite the inlet valve c are divergent from those f<4> on the other side of that passage. The ends a<2> of the lining a a may themselves constitute passages connecting two or more reservoirs.
Patent GB-982079-A (GB)
Title: Process for the production of xanthine derivatives
Inventor: GOLDNER HERBERT
IPC: C07D473/04
Filed: 1962-05-01
Abstract: Xanthine derivatives of the general formula <FORM:0982079/C2/1> wherein R1 and R2 represent hydrogen atoms or alkyl radicals and R3 represents a hydrogen atom or an alkyl, aryl, aralkyl, carbalkoxy, hydroxyalkyl or di-alkylaminoalkyl radical, are prepared by dehydrating 4-amino-5-nitrosouracils of the general formula <FORM:0982079/C2/2> The dehydration may be performed by dry heating, usually at 50 DEG  to 200 DEG  C., the uracil or by heating a solution thereof in an organic solvent, e.g. dimethylformamide, benzene, toluene, xylenes and alcohols.  The uracil starting materials may be prepared by:  (1) reacting the corresponding 4-chloro-uracils with amine of the general formula H2NCH2R3 and nitrosating the product; or (2) transamination of the corresponding 4-amino-uracils with amine hydrochlorides of the general formula H2NCH2R3.HCl and subsequent nitrosation. When the methylene group a to the 4-amino group in the uracil intermediate of (1) above is activated by the presence of another group in the substituent R3, partial or complete dehydration to xanthines of formula I may occur during the nitrosation step.  If the ring closure is incomplete the dehydration may be completed by heating the nitrosation mixture or by isolating the nitrosouracil thereform and heating said uracil alone or in solution.  In another embodiment 1-R1-3-R2-4-amino-5-nitroso-uracil are simultaneously transaminated with amine hydrochlorides of the formula given in (2) above and dehydrated to the corresponding xanthine derivatives.
Patent GB-1500016-A (GB)
Title: Extraction vents
Inventor: HOLMGREN K A B
IPC: E04D13/035
Filed: 1975-04-22
Abstract: 1500016 Ventilators SVENSKA ICOPALFABRIKEN AB 22 April 1975 [23 April 1974] 16706/75 Heading F4V A smoke and heat extraction vent comprises a cover 10 pivotally mounted by a hinge 13 to a frame 11 about a roof opening 12, which is retained in closed position by a locking mechanism 14 which, when released, allows the cover to swing downwardly under its own stored energy against the braking action of an hydraulic damper which allows a relatively high initial opening speed of the cover and thereafter a gradually reduced opening speed. The damper comprises a housing 20 with a closed chamber formed into two compartments 22, 23 which contain a viscous liquid and a rotor 28 with projecting blades 32, 33. The gaps 38, 39 between the blades and housing wall vary in size according to the angle of rotation of the rotor in relation to the housing for greater or lesser flow of the liquid therethrough and move between co-operating stop projections 35 on the inner side of the housing.
Patent GB-292143-A (GB)
Title: Improvements in carburettors
IPC: F02M3/08
Filed: 1928-06-08
Abstract: 292,143. Pepinster, E. L. H., and Geneve, F. June 15, 1927, [Convention date]. Spray carburettors. - The passage at the fuel orifices 12 is varied by a, manuallyoperated valve 1 sliding on a guide 28, the parts being so shaped that the passage is largest at intermediate positions of the valve. The valve 1 normally rests on a seat 8 in which the orifices 12 are formed. Fuel is supplied from the float chamber 17 through a restricted orifice 16 and conduit 14 to an annular chamber 13 feeding the orifices 12, air compressed in the upper part 20 oi the chamber 13 assisting in ejecting the fuel at starting. The guide 28 is hollow and supplies aerated fuel for slow-running, the air being supplied through an inner tube 34 communicating with the atmosphere through an orifice 36 controlled by a valve 35, and the fuel through orifices 45 in the tube 34. and an annular well 32 connected to the conduit 14 by a passage 31.
Patent GB-236922-A (GB)
Title: Improvements in light signals
IPC: B61L5/18
Filed: 1925-06-29
Abstract: 236,922. General Railway Signal Co., (Assignees of Prescott, C. W.). July 11, 1924, [Convention date]. Mounting electric lamps in lanterns; lantern doors and door fiittings. - In light signals of the type described in Specifications 209,856 and 212,198 in which a doublet lens is provided, the electric lamp is mounted in a socket secured to a shelf carried by the inner bezel ring of a lens barrel adapted to carry the doublet lens. The lens barrel is secured to the front wall of a casing. Specification 185,084, [Class 118 (ii), Signals], also is referred to.
Patent GB-499718-A (GB)
Title: Improvements in tractor trailer coupling devices
IPC: B62D13/00
Filed: 1938-06-07
Abstract: 499,718. Road vehicle couplings. FOULGER, A. E. June 7, 1938, No. 16791. [Class 103 (v)] In a tractor-trailer towing-connection adapted for forward or reverse steering of the trailer, a tow-bar 2 guided between pairs of transverse members c, c<1> of the trailer framework is provided with runners 7, 7a, which co-operate with indentations C<2>, C<3> in the members C, C<1> and are fitted with coupling-pins 8c, 8b one or other of which is adapted to be engaged by a piston working in a cylinder 8 or 8a, the pistons being operated in one direction by suction from the induction pipe of the tractor engine and in the other direction by springs. For forward movement of the trailer the runner 7 is engaged with the indentation C<2>, and the bar 2 is connected to the trailer framework through the pin 8c, while for reverse movement the runner 7a, indentation C<3> and pin 8b are operative. The reduction of pressure in the cylinders 8, 8a is controlled by a valve 10, Fig. 3, on the steering-column, while a second valve 13 thereon controlling the pressure in a third cylinder 9 may control the trailer brakes through links 11, 11a and levers 13, 13a. Coupling members 5 may be mounted on the rear of the tractor framework B1 to engage pins 21 on a transverse bar 4 fixed to the towbar 2. Each coupling comprises a fixed portion 18 and a hinged portion 19, Fig. 6, adapted when closed together to form a pin-receiving recess x, the portion 19 being locked by a screw 22 carried by a hinged fork 22<1>. Specification 489,163 is referred to.
Patent GB-220128-A (GB)
Title: Improvements in or relating to vacuum brake apparatus for railway vehicles
IPC: B60T13/46
Filed: 1923-06-28
Abstract: 220,128. Peters & Co., Ltd., G. D., and Rawlings, V. P. June 28, 1923. Fluid-pressure. - Diaphragm cylinders for vacuum-brake apparatus have the portion 2 of the cylinder casing above the diaphragm 7 formed relatively large, so that the customary vacuum reservoir may be dispensed with, and the top and bottom of the casing, and the members 10, 14 to which the diaphragm is attached are preferably all formed of wrought metal. Preferably the top of the casing has welded to it an angle ring 5 with inturned flange, which is attached to the flange 6 of the bottom 1 by studs 8 and bolts 9. The boss 13 of the bottom may be welded to it and the local thickening where the passage 16 leading from the valve 15 to the chamber above the diaphragm is provided may be formed integral with it or be welded to it. Registration of the passage 16 with the port in the angle ring 5 is ensured by providing the port with a short tube 17. When the member 10 is a forging, the boss 13 may be formed integral with it, and when it is a sheet metal pressing or a drop stamping, a forged boss 11 may be welded to it. The trunnion straps 22 are welded or riveted to the side walls of the reservoir. Specification 117,949, [Class 122 (i), Engine and like cylinders &c.], is referred to.