baber/WOPTO huggingface dataset:
Patent GB-450498-A (GB)
Title: Improvements in and relating to lighting fittings
IPC: E01B3/16
Filed: 1935-08-21
Abstract: 450,498. Street lamps; reflectors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 21, 1935, No. 23494. Convention date, Aug. 24, 1934. [Classes 75 (ii) and 75 (iv)] In a street lamp with a horizontally arranged elongated lamp 6 such as a sodium vapour discharge lamp, a pair of reflecting surfaces 15, 16 converging to a ridge 25 parallel to the lamp are arranged to distribute light from the lamp in opposite directions on to a roadway, a pair of reflectors 12, 13 suspended from the convergent reflectors are arranged on opposite sides of and parallel to the lamp, and a plane reflector 14 is arranged at one end of and perpendicularly to the lamp 6. The reflecting surfaces 15, 16 are parts of parabolic cylinders, the focal lines of which coincide with the light source. The curvature of the surfaces 15, 16 is modified near the ridge 25. At the front the surfaces 15, 16 are joined by a paraboidal surface 22. The reflectors 12, 13 may be flat or curved, and have extensions 28, 29.
Patent GB-848970-A (GB)
Title: Improvements relating to the formation of sliver
IPC: D02G3/18
Filed: 1958-07-22
Abstract: 848,970. Making slivers from heat-softenable mineral materials. OWENS-CORNING FIBERGLAS CORPORATION. July 22, 1958 [July 25, 1957], No. 23564/58. Class 120(3). Staple sliver is made from heat-softenable mineral or other material, e.g. glass or thermoplastic resins by softening the material, forming filaments from it, attenuating and converting them to fibres by a gaseous blast, and rotating the product as it passes to a compactor to fold in protruding fibres and smooth it to form a sliver of substantially uniform section. In fig. 1, molten glass is ejected as filaments through apertures in a rotor 12 and is subjected through an annular outlet 34 to a blast of hot gas from the combustion of air and fuel gas in a burner 28. Alternatively, the blast may be of air or steam. The fibres so formed now converge to form a bundle in a rotatable conical hood 45 from which the gases are withdrawn through apertures 49, the process also assisting the deposition of the fibres. The fibres now pass to a rotary compactor 38 before being wound up as sliver at 42. The compactor is made to rotate by compressed air &c. impinging on vanes and it is just big enough to accommodate the sliver and fold in loose or projecting fibres. The rotor 12 comprises an internal wall shaped to direct the molten glass to apertures at three horizontal levels. In Fig. 6, the filaments are guided by a hood 95 to a series of spaced endless wires &c. moving over pulleys, on which the fibres collect as catenaries which are severed by rotating blades 120 between the wires so that the fibres are carried over a baffle 130 to compactors 381 as loops hanging over the wires. The gas is carried away through a vacuum chamber, the deposition of the fibres being assisted by the process, and waste fibres fall on to a collector 128. In another form, the hood 95 leads to a single conveyer band, and may pass through a twister as well as a compactor, while the fibres falling on to the collector are made into a mat. In a further form, an elongated orifice emits a blast of hot gas to soften rods or filaments and blow the resultant fibres on to an inclined arrangement of wires operating as in Fig. 6.
Patent GB-291652-A (GB)
Title: An improved casserole with outer casing
IPC: A47J36/04
Filed: 1927-09-08
Abstract: 291,652. Eldridge, H. Sept. 8, 1927. Jackets.-A casserole or like cooking vessel of earthenware, flint or glass is formed with a jacket c the lower edge of which terminates in an upwardlyinclined flange d. Perforations f, f<1> are formed in the upper part of the jacket.
Patent GB-219832-A (GB)
Title: An improved address label
IPC: G09F3/02
Filed: 1923-09-21
Abstract: 219,832. Phillips, J. E., and Probert, A. Sept. 21, 1923. Labels.-In returnaddress labels of the type described in Specification 13075/01, the detachable slip B is formed integral with the label A but divided from it by a line of perforations C, thus enabling the label to be addressed in a typewriter before the slip is folded over at the line C to cause the printed matter on its back surface, which is shown in Fig. 2, to be displayed, and to cover up the words " to " and " from " on the label A.
Patent GB-1079437-A (GB)
Title: Fluid stepping mechanism
IPC: F15C3/10
Filed: 1965-06-02
Abstract: 1,079,437. Counters. SPERRY RAND CORPORATION. June 2, 1965 [June 8, 1964], No. 23581/65. Headings G4D and G4P. [Also in Division F2] A stepping mechanism for digital data pro. cessing equipment comprises a wheel or rack 10 having teeth 16 . . . 23 with assymetric faces a, b and two jets 44, 46 so spaced that when one of the jets (e.g. 44) is aligned with one of the ducts 25 . . . 40 between the teeth the other jet is opposite one of the faces b. A fluid amplifier 48 selectively directs fluids (e.g. air) from a source 50 to the jets 44, 46 in response to fluid flow through control jets 62, 64. When fluid flows through the jet 44 with the wheel 10 in the position shown it passes through the duct 40 to a central aperture 42 and hold the wheel stationary. When the supply of fluid is switched from the jet 44 to the jet 46 the flow from the latter impinges on the face b of tooth 23 and thus turns the wheel 10 until the jet 46 is aligned with the duct 40. With the wheel in this position the jet 44 is opposite the face b of tooth 16 so that further switching of the fluid supply will cause further rotation of the wheel 10. The fluid amplifier may be of the self-locking type wherein fluid keeps flowing from the source to one of the jets after the initiating control flow has ceased. A number of fluid inputs may operate on a single wheel. In Fig. 7 (not shown) alternate flow from jets (102, 104) causes stepped rectalinear movement of a rack (90).
Patent GB-174662-A (GB)
Title: Process for the manufacture of hollow bodies of circular cross section, from plastic masses
IPC: B28B21/44
Filed: 1920-08-13
Abstract: 174,662. Vass, J. von. Aug. 13, 1920, Addition to 146,400. Concrete vessels comprise a hollow body provided with ribs 39, 40, Fig. 2, formed in hollow rotating moulds by the process described in the parent Specification, a superstructure 42 being subsequently added, or several such hollow bodies 43, 44, Fig. 3, arranged alongside each other and provided with a common bottom and sides.
Patent GB-1034765-A (GB)
Title: Electrical conductors and alloys for use therein
Inventor: MASON JOHN JEFFERSON
IPC: H01F1/147
Filed: 1964-06-08
Abstract: An alloy having a Curie temperature between 20 DEG C. and 40 DEG C contains Mo 3-11%, Ni in an amount such that 36. 1 Ni-10.1 Mo-1025 is from 20 to 40 and the balance iron.  The alloy may be used for sheating an overhead electrical power transmission line (see Division H1).
Patent GB-1180735-A (GB)
Title: Improved Brazing Ring
Inventor: FOOTE DONALD ERNEST
IPC: B23K3/08
Filed: 1966-05-27
Abstract: 1,180,735. Brazing rings; making rings. JOHNSON, MATTHEY & CO. Ltd. 22 May, 1967 [27 May, 1966], No. 23943/66. Heading B3A and B3R. Split brazing rings are produced by placing a strip or wire of brazing material into the nip between a former F1 and a knurling tool K, Figs. 2, 2A, rotating the tool to form a helix, which passes on to a support S, and then making an axial cut along the helix so that each convolution forms a ring. Indentations 3, Fig. 1, are formed by the tool K. In a modification, the indentations are formed prior to placing the material on the former. In a further modification a split brazing ring is formed on a former F4, Fig. 3B, by displaceable members D1-D3, having sawtooth forming surfaces.
Patent GB-615008-A (GB)
Title: Improvements in methods of and means for effecting closure of autoclaves or similar pressure vessels
IPC: F16J13/06
Filed: 1946-08-13
Abstract: 615,008. Closures for pressure vessels. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Aug. 13, 1946, No. 24050. Convention date, Dec. 10, 1945. [Class 123(i)] An autoclave 1 and cover 2 are closed at the flanged joint 5 by a plurality of hydraulic or pneumatic jacks 6, preferably carried by the cover 2 and operating through connecting links 12 secured in slots 14 in the autoclave flange by enlarged ends 13. The connecting rods 12 are linked to the pistons of the hydraulic jacks by a rocking lever formed by a pair of plates 9 and a universal joint comprising spindles 10, 11, in such a manner that automatic balancing and equalisation of the individual stresses takes place at all points on the cover, the jacks 6 being connected to a single source of fluid pressure. Positive locking of the cover to the autoclave is provided independently of the fluid pressure supply by a nut 16 (Fig. 3) which is screwed along a threaded portion on each jack body 17 by means of tommy bars inserted in hole's 18. The nut 16 exhibits a spherical bearing surface 19 which is adapted to fit against a boss 20 of complementary shape formed by the lower ends of the cross-bars 20a connecting the side plates 9 of the locking lever.
Patent GB-259556-A (GB)
IPC: H01H85/044
Filed: 1926-09-29
Abstract: 259,556. Maurich, E. Oct. 8, 1925, [Convention date]. Fusible cut-outs.-The contact caps of a fuse element are so formed as to engage laterally with the corresponding contacts on the carrier casing. The cap 5 is of conical form and engages with a coned or partially coned socket 6 mounted in an insulating casing 1. The head 7 may vary in size according to the capacity of the fuse and fits the recess 8 so that an unsuitable fuse cannot be inserted. The wire 3 is embedded in plaster of Paris 2 to which the caps are affixed. Both caps 5, 5<1>; Fig. 3, may be tapered and the casing 10 may be of metal connected to one contact 10' the other contact 6 being insulated from the cas ing by a shell 11.
Patent GB-1327495-A (GB)
Title: Synthesis of aromatic diamines
IPC: B01J23/70
Filed: 1971-04-19
Abstract: 1327495 Aromatic diamines E I DU PONT DE NEMOURS & CO 19 April 1971 [25 March 1970 18 Dec 1970] 24087/71 Heading C2C [Also in Division B1] An aromatic diamine is obtained by reacting an aromatic compound which is a monoamine derivative of an aromatic hydrocarbon or of an aromatic compound having a nitrogen-containing heterocyclic ring, the derivative optionally containing a nitrile group or an ether group or one or more alkyl groups, with NH 3  in the presence of a Ni/NiO catalyst composition at a temperature of 150‹ to 500‹ C. and at a pressure of 10 to 1000 atmospheres and recovering the resulting aromatic diamine. The catalyst may additionally comprise at least one oxide or carbonate of Zr, Sr, Ba, Ca, Mg, Zn, Fe, Ti, Si, Al, Th, U, Ce or one of the alkali metals.
Patent GB-233598-A (GB)
Title: Improvements in change speed gearing
IPC: F16H61/02
Filed: 1924-10-11
Abstract: 233,598. Hunt, W. Oct. 11, 1924. Variable-speed gearing comprises a driving shaft Y and one or more nested sleeve such as Z which are driven in succession by the engagement of one or more clutches B, free-wheel clutches such as H allowing the lower gears to be overrun. The clutches B are controlled by hand or foot at the will of, say, a vehicle driver, and not automatically as described in Specification 215,560. The clutch A shown connects the engine shaft X to the shaft Y. The gear trains C, D and E, F shown are of bevel type. Reference has been directed by the Comptroller to Specifications 10643/03, 24140/05, 7067/13 and 137,783.
Patent GB-1498130-A (GB)
Title: Exhaust gas filter
IPC: B01D53/64
Filed: 1975-06-04
Abstract: 1498130 Purifying exhaust gases ASSOCIATED OCTEL CO Ltd 2 June 1976 [4 June 1975] 24157/75 Heading C1A [Also in Division B1] A gas filter for reactively removing lead compounds from the exhaust of internal combustion engines using leaded fuels comprises, as filter medium, a support member of extended surface area and a coating layer of calcined alumina formed over it, the layer being impregnated with 3-60% by weight, based on weight of alumina, of an alkali metal carbonate or borate. The alumina may be impregnated with potassium carbonate and supported on stainless steel wire wool.
Patent GB-856472-A (GB)
Title: Magnetic tape head supporting mechanism
Filed: 1958-07-28
Abstract: 856,472. Magnetic recording &c. heads; supporting. QUIRK, H. L. July 13, 1959 [July 28, 1958], No. 24165/68. Class 40 (2).  A head-support for multi-track magnetic tape-recorders comprises plates m and tubes n forming a sub-assembly carrying, a head represented by its polepieces f and slidable on the pillars of an assembly derived from a wafertype switch. A rotor o, slidable on the switchshaft k, carries a detent q, which engages a spiral cam-track r; rotation of the shaft b, under the control of a click mechanism j raises or lowers the sub-assembly in steps. Tape guide pillars d are attached to the structure and a trimming adjustment is available by slightly rotating the cam by means of a lever e.
Patent GB-780141-A (GB)
Title: Improvements in and relating to a door structure of a shovel of a shovelling machine
Inventor: LARSEN PAUL VERNON
IPC: E02F3/40
Filed: 1955-08-22
Abstract: 780,141. Shovelling machines. ELECTRIC STEEL FOUNDRY CO. Aug. 22. 1955, No. 24171/55. Class 68(1) A door structure for an opening in a shovel 10 of a shovelling machine comprises a door 11, secured to a pair of hinge bars 12a, pivotally mounted on the shovel by wedge blocks 38 passing through aligned apertures in the bars 12a and in pairs of brackets 24, 31 which partially encircle the bars 12a and are secured to the door 11. Two pairs of brackets are provided for each hinge bar, each pair of brackets being adjacent opposite ends of the door. The walls furthest from the door of the aligned openings of each pair of brackets are inclined at a common angle thereby providing a tapered opening. The faces of the wedge blocks have the same angular relationship to one another as the walls of the tapered openings in the pairs of brackets. When the structure is assembled the smaller end of each wedge block is adjacent the centre portion of the door and is provided with a threaded stud 43 that, together with a nut and washer, retains the block in the aligned apertures. A cushioning means 23 is interposed between the door and the adjacent flange of each hinge bar. Longitudinally and transversely extending webs 47, 48. 49 are disposed within each substantially hollow wedge block, the transverse webs 48, 49 being provided at the points of greatest force application of the wedge block.
Patent GB-1504701-A (GB)
Title: Preselector circuit arrangement
IPC: H04Q3/00
Filed: 1975-05-23
Abstract: 1504701 Automatic exchange systems POST OFFICE 23 May 1975 [31 May 1974] 24258/74 Heading H4K In an arrangement for preselecting for use one from a number of free items, the preselection is effected by enabling a thyristor associated with the item. In specific embodiments the items are the bridge magnets of a cross-bar switch used as a non numerical switching arrangement for use in either a concentrator or a register connector. General arrangement (Fig. 1).-When the battery B of the circuit is connected up relay GB operates over its left hand coil GB/1 to close contact GB I and to supply a pulse generated in the right hand winding of relay GB to the gate of thyristor TH1 via diode Dl and contact GB1. Thyristor TH1 then conducts as a current path to earth exists via contact X 1  I and resistor Rl, thereby preselecting item X,. To seize the preselected item contact L is closed to operate relay S and thereby close contacts S1 and S2. A current path then exists from battery B via thyristor TH 1 to the item X1 and thence via diode Dl and contact S1 to earth. Item X1 is therefore operated and by means not shown causes the closure of contact H1 and the release of contact L, the contacts X 1 1 and X 1 2 also being opened and closed respectively. Item X 1  is therefore provided with a holding path via contact H1 and the next free item X2 is preselected by a pulse produced in the right hand winding of relay S when this relay starts to release due to the opening of contact L, the pulse being supplied via contact S2 (not yet open) and contact X 1 2 (now closed), to turn on thyristor TH 2 . If all the items have been seized contacts X 1 3-X n 3 are open and relay GB is released thereby giving an all items busy indication. Subsequently, when any of the items X n  is released due to the opening of its contact H n , the corresponding contact X n 3 closes to operate relay GB, thereby causing the preselection of the item X n  in an analogous manner to the preselection of item X, when the battery B was first connected. Fig. 2 shows a modification wherein the current though the thyristor TH in the preselection state also flows though the item X, the current being limited to below the operating current of the item by the resistor R. Figs. 7-12 (not shown) illustrate how the above arrangement can be applied to a 26Î10 non numerical cross-bar switch wherein the 10 bridge magnets correspond to the items X1-Xn. Details of cross-bar switches are given with respect to Figs. 3-6 (not shown).
Patent GB-1149028-A (GB)
Title: A filler metal for the submerged arc welding process, and method for its manufacture
IPC: B23K35/362
Filed: 1966-05-31
Abstract: 1,149,028. Welding by fusion. HOGANASBILLESHOLMS A.B. 31 May, 1966 [24 June, 1965], No. 24274/66. Heading B3R. [Also in Division C7] A filler material for a submerged arc welding process is made by mixing Fe powder with one or more alloying metals such as Mn, compacting to form a strip, annealing in a gas which produces a required carbon content e.g. 0À01- 0À2% in the filler and crushing to form rounded particles 0À5-5 mm. in size. A Mn containing powder such as Fe-Mn is added to sponge Fe powder to produce a filler containing 0À3-5% Mn. Other elements such as Mg, Si, Cr, Ni, Mo, Al, Ti and V may also be added to the Fe powder. The rolled strip or pieces of the strip are annealed in a mixture of Co and CO 2 . In an example the filler is used for the submerged arc welding of unalloyed steel using a flux containing 33% SiO 2 , 28% MnO, 7% CaO, 5% CaF 2 , 2% MgO, 20% Al 2 O 3 . The filler is used to fill a welding gap backed by a copper backing strip prior to application of the flux.
Patent GB-681057-A (GB)
Title: Air cleaner
Inventor: ROMMEL WILLIAM GUSTAVE
IPC: B04C9/00
Filed: 1950-10-05
Abstract: 681,057. Electrostatic precipitation. GARRETT CORPORATION. Oct. 5, 1950, No. 24325/50. Class 39(i) An air cleaner in which a swirling motion is imparted to the air stream as it passes through a conduit so that after being positively charged the heavier particles are brought nearest to the walls of the conduit before passing through a second field which deposits them on the collector. The air is propelled by a fan 15 past curved deflector plates 25 mounted within an insulated ring 12, and connected to a positive high potential source. The charged particles then pass through an electrostatic field maintained between a ball 38 and the earthed conduit 28. The potential of ball 38 is made higher than that of the plates 25 and the particles are repelled by the ball electrode and attracted to the conduit 28 so that they travel along the surface of the conduit to the annular collector 33, the particles being deposited in a receptacle 37.
Patent GB-190238-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L7/06
Filed: 1922-06-15
Abstract: 190,238. Smith, H. June 15, 1922. Closure members, rotary disc.-The inlet valve 3 to the crank chamber of an internal-combustion engine is pressed on to its seating by a thin steel or other disc 7, Fig. 4, formed with pressedout fingers 11. The valve seating is preferably formed by a disc 6 of steel or other hard material. The valve is preferably driven by a pin 9 projecting from the crank-web and entering a recess in the valve.
Patent GB-1014001-A (GB)
Title: Improvements in and relating to high voltage transformers
Inventor: BAKER WILLIAM PERCIVAL
IPC: H01F27/36
Filed: 1961-07-06
Abstract: 1,014,001. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 22, 1962 [July 6, 1961; Dec. 12, 1961], Nos. 24505/61 and 44476/61. Heading H1T. A transformer having a high voltage winding of axiallyaligned disc coils which are connected in two series groups 1, 2 has several shields which act as capacitor electrodes so arranged that a shield associated with an axially outer coil of low voltage is radially spaced at a greater distance from the winding than a shield associated with an inner higher voltage coil. The electrodes 11, 13, 15 may comprise overlapping coaxial cylinders which are slit longitudinally to prevent circulating currents and are connected to disc coils 12a, 14, 16 respectively on one side of the central high voltage coils 10a, 10b and to the coils 12b &c. on the other. The length of the electrodes may be the same or the length of successive ones may increase as the radius decreases. The high voltage coils 10a, 10b may be connected to a cylindrical electrode or to two rings or segments 9a, 9b which sandwich radial extension 11c of the next electrode 11. A second capacitor chain of coaxial cylinders may be formed around the outside of the high voltage winding, the high voltage electrodes of the two chains being conductively inter-connected and also connected to the transformer terminal. The coupling between the electrodes and the disc coils may be capacitive instead of conductive. Oil ducts 6 may be provided around the lowvoltage winding. A reduction in transformer size is claimed without a corresponding fall in impulse strength.
Patent GB-383252-A (GB)
Title: Improvements in and relating to reaction turbines
IPC: F01D5/06
Filed: 1932-09-02
Abstract: 383,252. Steam turbines. AKT.-GES. BROWN, BOVERI ET CIE, Baden, Switzerland. Sept. 2, 1932, No. 24555. Convention date, Jan. 25. Addition to 347,374. [Class 110 (iii).] A drum rotor consisting of wheels having no central bore which are placed side by side and welded together at the periphery as in the parent Specification, has the welded seam z between the wheels p, q displaced in an axial direction to such an extent that it lies entirely or mainly outside the bending stresses produced by the centrifugal forces. A cylindrical flange z<1> on the hotter wheel p is embraced by a flange on the colder wheel q.
Patent GB-405730-A (GB)
Title: An improved device for forwardly feeding roll films in roll film cameras
IPC: G03B19/04
Filed: 1932-09-05
Abstract: 405,730. Photographic roll - film cameras. THORSCH, B. B., 30, Bõrensteiner Strasse, Dresden, Germany. Sept. 5, 1932, No. 24753. Convention date, Sept. 5, 1931. [Class 98 (i).] Relates to feeding devices for roll-film cameras of the kind in which the winding-spool is actuated by means of a rocking lever 2, the stroke of which is progressively diminished by means of a cam plate. According to the invention, the pawl 20 for effecting the advance of the cam plate 12, is actuated by means of a pin, protrusion, cam, or the like 23, capable of rotating together with the lever 2. In the form shown, the pin 23 is secured to a disc 5 mounted on the same shaft 3 as the operating handle, and engages with a spring-controlled pivoted lever 18 on which the pawl 20 is mounted. The pawl engages with the teeth of a wheel 10 secured to the shaft 11 of the cam plate 12 and effects a slight rotation of the cam plate on each downward stroke of the lever 2. The length of this downward stroke is determined by the position of the cam, which forms an abutment for a spring-controlled member 13 pivoted at 15 to the lever 2 and having a pin-and-slot connection 16, 17, with the casing 1 of the camera. A spring-controlled pivoted catch 24 prevents unintentional backward rotation of the cam plate. A wheel 8 on the film-winding shaft 9 meshes with a wheel 7 loosely mounted on the shaft 3. A number of pawls 6 are mounted on the wheel 7 and engage with the teeth of a ratchet wheel 4 which is rigidly secured to the shaft 3. This arrangement provides that the shaft 9 of the winding spool is rotated in one direction only.