baber/WOPTO huggingface dataset:
Patent GB-713082-A (GB)
Title: Improvements in or relating to water-tube steam boilers
IPC: F22B21/00
Filed: 1951-06-22
Abstract: 713,082. Watertube steam boilers. PETRO-CHEM PROCESS CO., Inc. June 22,1951 [July 12, 1950], No. 14884/51. Class 123(2) A steam boiler comprises a vertical steam-and-water drum 20 which has steamgenerating tubes 24, 26 extending between the ends thereof and is located co-axially within a casing 14 of such shape as to provide a lower relatively-large radiant-heat zone 21 and an upper reduced convection zone 23, the boiler being fired by burners 28 projecting through the floor or, alternatively, tangentially through the wall of said casing 14. Preferably the tubes 24, 26 are in two annular banks adjacent to the surfaces of the drum 20 and casing 14 respectively, the parts of the tubes in the zone 23 being provided with fins or like extended surfaces. Located concentrically within the drum 20 is a baffle 48, serving as a downcomer, and, at the butlets of the tubes 14, 26, a steam-separating baffle 51 supported by an annular ring 53. An economizer comprising a bank of tubes 33, with inlet 36, outlet 38 and suported by the drum 20, may be fitted within the boiler gas-outlet stack 17, and U-shaped superheating tubes 34, connected between the top of the drum 20 and an outlet. 46 may replace some of the tubes 24. Specification 580,671 is referred to.
Patent GB-1380466-A (GB)
Title: Gate protective device for insulated gate fieldeffect transistors
IPC: H01L27/02
Filed: 1972-03-30
Abstract: 1380466 Semi-conductor devices RCA CORPORATION 30 March 1972 [12 July 1971] 14978/72 Heading H1K A gate insulation protection device for an insulated gate field effect transistor 42 comprises a plurality of degenerately doped back to back diodes, 70, formed in a semi-conductor film 50 disposed on insulating material 44. The diodes may be formed from nine degenerately doped regions 72, 74 of alternating conductivity type, forming eight Zener diodes connected in series between the gate electrode 63 and either the source or drain region 64, 66 respectively. The insulating material may be sapphire or spinel, the film 50 being of epitaxially deposited silicon 10,000Š thick. The degenerate doping level may be in excess of 5 + 10<SP>19</SP> atoms/cc. An insulating film 78 over the diodes may be thermally grown silicon dioxide, and aluminium conductive tracks used for interconnections. Doping may be by means of boron. In an alternative embodiment, the diodes are similarly formed on an insulating film on a semiconductor substrate in which the I.G.F.E.T. is formed. One connection to the diodes may be by means of a conductive track leading to a diffused region in the substrate.
Patent GB-328132-A (GB)
Title: Improvements in and relating to apparatus for flash light photography
IPC: G03B15/04
Filed: 1929-05-14
Abstract: 328,132. Speed, J. A. May 14, 1929. Cameras combined with flashlights; shutters.- Means for operating the shutter of a camera simultaneously with the firing of a flash comprises a bent lever 11, 15 having a hammer head 16, which bears against a spring- pressed bolt 17, and rests on the head 23 of an antinous or other release device set in a bush 20 in the base of a casing 6, which supports by an arm 5 a trough 7 containing the flash powder. The arm is held in the position shown, with the spring 19 on the bolt 17 compressed, by a fuze of cotton or other light material stretched across the trough 7 and severed by the heat or flame of the flash. A hook and pin connection 13, 14 on the lever 11 and arm 5 allows the lever to be held in place for fixing the fuze.
Patent GB-1310156-A (GB)
Title: Strain relief clamp for electrical wiring connector
IPC: H01R13/58
Filed: 1970-04-03
Abstract: 1310156 Strain relief devices LOCKHEED AIRCRAFT CORP 3 April 1970 [11 April 1969] 16035/70 Heading H2E To clamp wires 20 to a connector 14, 15 to relieve strain, a clamp comprises an internally threaded ring 11 having an arm 18 terminating in lateral projections 19 which have arcuate inner surfaces coaxial with ring 11. A nylon strap 21 secures the arm to the wires. The arm may be bent at right angles (Fig. 5, not shown), and the ring 11 may have a gap to allow wires to be disconnected without having to remove the clamp.
Patent GB-529068-A (GB)
Title: Improvements in or relating to electric switches operated through ratchet mechanism
IPC: H01H17/00
Filed: 1939-05-20
Abstract: 529,068. Snap-action switches ; actuation of switches. WARD & GOLDSTONE, Ltd., and GOLDSTONE, M. H. May 20, 1939, No. 15041. [Class 38 (v)] Switches of the kind in which successive pulls of a cord or pushes of a button rotate a contactor through ratchet mechanism from one operative position to the next are adapted to control two or more circuits selectively, either singly or in combination. The top of the central boss of a vulcanite or synthetic resin base is formed with four ratchet teeth 11. three of which contain fixed contacts 12a ... 12c. A contactor 16 rotatable on a pivot 15 has three legs having inclined feet 17, and has two tongues 19 struck therefrom to form ratchet teeth co-operating with opposite pairs of slots 21 in a member 20 rotatable about pivot 15. A cord 23 provided with a bead 32 is secured against the rim 22 of member 20, which is urged against the contactor 16 by a torsion spring 24 coiled about pivot 15 and providing the quick action and return of the member 20 after actuation. The contact 12b may be connected to the line, and contacts 12a, 12c to separate lights, the dummy contact pillar 14 being for the common return. In one complete turn of contactor 16 there will then be obtained energization of one light, of both lights, of the other light, and an " off " position. The same combinations, but with a different sequence, can be got by making either of the other contacts the live one. The cord passes through a guide hole 31 such that the pull can be effected from any direction, so enabling the switch to be wall or ceiling- mounted.
Patent GB-985419-A (GB)
Title: Process for curing polyester urethanes and products thereof
IPC: C08F299/06
Filed: 1962-04-18
Abstract: A method of curing a polyurethane comprises heating a polyester urethane which is the reaction product of 0.95 to 1.05 mols of an organic di-isocyanate with each mole of polyester and which contains one ethylenic double bond per 20 to 40 thousand molecular weight units, in the presence of 0.5 to 10 parts by weight of a ditertiary peroxide for each 100 parts by weight of the polyester urethane to effect a cure.  Many polyester (including polyesteramide) forming materials, di-isocyanate and peroxides are specified.  The vulcanizable compositions of polyester urethane and ditertiary peroxide may also contain an inert filler. Examples describe the preparation and curing of polyester urethanes.
Patent GB-110609-A (GB)
Title: Improvements in or relating to the Transport of Coal and other Material.
Inventor: BELL GEORGE GILBERT
IPC: E21F13/04
Filed: 1916-10-26
Abstract: 110,609. Bell, G. G. Oct. 26, 1916. Transmitting pulverulent material by pumping or forcing in a liquid medium.-Coal and like solid material is transported by a stream of water or liquid in a pipe-line or duct, the coal &c. being added at a predetermined rate. The receiving hopper F has three chambers separated by the two valves or gates G, G<1>, the intermediate chamber F<2> serves as a liquid lock and is connected to the pipe-line C by the pipe K<1>, the upper chamber F is connected to the additional pump E<1> and the pipe-line by the pipe K, and the lower chamber F<3> is provided with the revolving table J and adjustable scraper J<1> for feeding the coal &c. to the pipeline. The upper and lower gates G, G<1> and the valves L, L<1> are Interlocked. The vertical rising main may be provided at intervals with pockets with mouths normally closed by flap valves.
Patent GB-488750-A (GB)
Title: Improvements in and relating to evacuating and filling machines
IPC: B60T15/18
Filed: 1937-06-02
Abstract: 488,750. Filling vessels such as tubes. BIOLITE, Inc. June 2, 1937, No. 15373. Convention date, June 2, 1936. [Class 125 (ii)] Apparatus for evacuating a vessel and charging it with liquid comprises means for releasably clamping the vessel in position, a gauge for holding a determined quantity of liquid, and means for evacuating the vessel and gauge simultaneously, for charging the gauge, and for transferring the liquid from the gauge to the vessel. The apparatus is intended particularly for charging the elements of display apparatus comprising tubes containing liquid through which bubbles rise when the lower end of the element is exposed to a source of heat, such as described in Specification 476,167, [Group XVIII]. The element B of such a display apparatus is shown in Fig. 2 as clamped by a resilient washer 76 and cap 84 to a filling head comprising a plug 64 which is connected by a passage 68 to a vacuum line 72, to a plug 86 carrying a gauge tube 50, and to a liquid delivery tube 36 connected to a flask 38. Valves 74, 96, 106 all generally similar and comprising compression means for closing flexible connections, are arranged so that by operating them in sequence the gauge tube 50 and element B are evacuated, liquid flows from the flask 38 to the gauge tube and then drains into the element B. Initially a small amount of liquid is introduced into the element B so that it is vaporized when the element is exhausted ; this may be effected automatically by providing a suitable connection to a supply of liquid. When the element is charged it is sealed off at the part 118. The flask 38 is heated to the temperature of the boiling point of the liquid by an electric heater under thermostatic control in a bath provided with a condenser 44.
Patent GB-580667-A (GB)
Title: Improvements in continuous ovens
IPC: F26B3/30
Filed: 1944-08-12
Abstract: 580,667. Continuous ovens. AUSTIN MOTOR CO., Ltd., and WALDRON, C. Aug. 12, 1944, No. 15405. [Classes 51 (i) and 51 (ii)] A muffle-heated continuous oven for drying paint on motor vehicle bodies has an inner shell A of mild steel left dull on both surfaces and is heated by gas burners g' arranged at the lower ends of upwardly tapering longitudinally combustion chambers B placed one above another. the gases from one chamber passing into the one' next above in all cases except each topmost chamber which delivers to a damper-controlled uptake H. To protect the shell A from direct contact with the flames, the outer wall C of each combustion chamber projects upwardly at c into the chamber above and the lowermost chambers are provided with protecting plates J. The air for combustion enters the chambers B through pipes F having flared outer ends.
Patent GB-732305-A (GB)
Title: Garment cuff structure
IPC: A41B7/00
Filed: 1953-06-05
Abstract: 732,305. Shirt cuffs &c. STEIN, S. F. June 5, 1953, No. 15518/53. Class 141. A sleeve 10 may be adjusted in length by attaching to it a cuff which comprises exterior and interior plies 12, 13 of cuff material which may form a plain cuff as in Figs. 1 and 4, or may be folded outwardly and upwardly at or near the line of attachment 19 of the outer ply 12, as in Figs. 7, to form a French cuff. The cuffs may be secured as either a French cuff or a plain cuff by cuff links passed through the button holes 15, 16, the button holes 16 being positioned vertically in relation to the botton holes 15 so that the position of the fold line of the French cuff may be changed to prevent excessive wear' on that line. A button may replace one of the button holes 15 and serve to secure the cuff as either a plain cuff or a French cuff. The plies 12, 13, and an inner ply extension 18 may be formed from separate pieces of material. A stiffening ply 14 is provided between plies 12 and 13.
Patent GB-515123-A (GB)
Title: Improvements in or relating to devices for automatically controlling the course of air or other craft
IPC: G05D1/02
Filed: 1938-05-24
Abstract: 515,123. Automatic control systems. SHEVLIN, J. T., (Siemens Apparate und Maschinen Ges.). May 24, 1938, No. 15524. [Class 38 (iv)] [Also in Groups. XX and XXXVIII] Steering.-To correct for drift of an air or other craft a pendulous gyroscope K, controlled by known means to indicate the course above ground in relation to the longitudinal axis of the craft, influences an automatic rudder control to balance out the drift either directly or through the absolute direction indicator. As shown a moving electrode in a casing 4 containing an electrolyte is positioned in relation to fixed electrodes in accordance with the drift angle, and, through additional coils on a rotary magnet D' operated through electrodes controlled by the compass 8, applies a correction to the rudder control 14, 15, S (which may include a damping gyroscope 16 responsive to angular velocity of course deviation). Alternatively the gyroscope K may adjust the setting of the compass through a differential connection with the course setting means 10.
Patent GB-454178-A (GB)
Title: Improvements in or relating to electro magnetic coils
IPC: H01F5/00
Filed: 1935-05-28
Abstract: 454,178. Magnet-coils. LANFRANCONI, F. A., 6, Lancaster Gate Terrace, Hyde Park, London. May 28, 1935, No. 15527. [Class 35] An electromagnetic coil adapted to generate a substantially constant flux despite variations in applied potential comprises turns of wire of low resistance and of relatively high resistance connected in parallel and twisted together, and in series with additional turns of relatively high resistance. As an example, 200 turns of parallel wires of high and low resistance respectively are twisted together and wound on a former, and about 2200 turns of high resistance wire are superposed, wound in the same direction. Copper wire of No. 38 S.W.G. and No. 44 S.W.G. may be used for the low and high resistance turns respectively. The coil may be used for the solenoid in the electric clockwork mechanism described in Specification 440,257, [Group XVIII], or as a choke coil in alternating-current circuits.
Patent GB-315528-A (GB)
Title: Improvements in the printing of cheques and like documents
IPC: B41M3/14
Filed: 1928-05-26
Abstract: 315,528. Waterlow & Sons, Ltd., and Goodman, V. E. May 26, 1928. Cheques and the like.-To prevent fraudulent alteration, paper for cheques and like documents is printed on both sides with similar impressions in register, and in the same colour, giving the appearance of being through-printed.
Patent GB-745337-A (GB)
Title: Improvements in or relating to the production of crinkled thermoplastic fully synthetic yarns
IPC: D02G1/02
Filed: 1954-05-26
Abstract: 745,337. Crimping yarns. MOULINAGE ET RETORDERIE DE CHAVANOZ. May 26, 1954 [June 19, 1953], No. 15602/54. Class 120 (3). A thermoplastic yarn, e.g. of nylon or polyacrylonitrile filaments, is crinkled by passing it through a setting zone, applying false twist to the yarn in a twisting zone after emerging from the setting zone and while unconfined between the zones to cause the twist to feed backwardly in the yarn into the setting zone where it becomes set therein and to be removed again after the yarn passes the twisting zone, the yarn being heated in the setting zone by radiation from a hot body or by infra-red radiation or by highfrequency dielectric heating. As shown, a yarn 8 passed through a stretching device 2 is taken up by a delivery roll 3 and presser roller 9 and travels over a roller 10 and eyelet 10<SP>1</SP> between which the yarn passes in contact with a curved metal body 11 through the interior of the casing of which a hot liquid e.g. a mineral oil, thermostatically maintained at a temperature exceeding 200‹ C. but below the melting point of the yarn in a boiler 12, is circulated via ducts 11a and 11b  by a pump 13, excessive heat losses being prevented by a reflecting cover piece 11c ; the yarn then passes into a rotary device 14 whereby it receives false twist in the part of the yarn 8 which, being in contact with the body 11, is therefore fixed, and is taken up by a winding bobbin driven from a roller 15. The rollers 3 and 15 are driven from a main shaft A by gear systems B, C, 7, 6, 5, 4 and D, E, 20, 19, 18, 17 at such relative speeds as permit a predetermined constant shrinkage of the yarn.
Patent GB-1454374-A (GB)
Title: Fan for gas turbine engines
IPC: F01D5/22
Filed: 1973-03-31
Abstract: 1454374 Fan rotors ROLLS ROYCE (1971) Ltd 28 March 1974 [31 March 1973] 15610/73 Heading FIT A fan for a gas turbine engine includes blades 11 resiliently connected to a surrounding shroud ring 15 by the engagement of a pair of lugs 13c on each blade tip within annular undercuts 14A in the shroud ring. The lugs 13c are disposed at the ends of arms 13A connected to the blade aerofoils by short necks 13B. Loading slots 17 are provided for lugs 13c as well as end stop inserts 18 for arms 13A. Breakage of a blade 11, e.g. in the event of a bird strike, will occur at neck 13B leaving the main portion of the blade to deflect about its connection to a central disc (12), Fig. 1 (not shown).
Patent GB-673291-A (GB)
Title: Universal joint
IPC: F16D3/24
Filed: 1950-06-22
Abstract: 673,291. Universal joints. WINGQUIST, S. G. June 22, 1950 [Aug. 16, 1949], No. 15624/50. Class 80 (ii). In a universal joint comprising rollers 5, Fig. 1, interposed between arms 4 on driving and driven members 1, 2, the rollers engage at their outer and inner ends in circumferential grooves 28 and 32 in outer and inner members 17 and 29. Each of the members 1, 2 has spherical surfaces 6, 7 with a common centre 8 on the axis of the member, engaging respectively a spherical surface 26 in the member 17 and a spherical surface 30 on the member 29, the two centres 8 being symmetrically disposed with reference to the bisecting plane II-II of the joint, so that the axes of the rollers are maintained in the bisecting plane. As shown in Fig. 1, the surfaces 30 are concave, each centre 8 being on the same side of the bisecting plane as the corresponding spherical surfaces 6, 7, 24. In the form shown in Fig. 5, the surfaces 30 are convex, each centre 8 being on the opposite side of the bisecting plane. In this latter form, also, the outer ends of the rollers 5 engage in a circumferential groove 34 in a ring 33 movable radially in the member 17, and the inner ends of the rollers bear against a ring 35 movable radially in the circumferential groove 32 in the member 29. The surfaces 26 may be conical instead of spherical.
Patent GB-435212-A (GB)
Title: Improvements in and relating to kerbs and drains
IPC: E01C11/22
Filed: 1934-05-26
Abstract: 435,212. Combined kerb and drain. PRESTWICH & SONS, Ltd., W., and JONES, R., Callywhite Lane, Dronfield, Derbyshire. May 26, 1934, No. 15719. [Class 107] A combined kerb and drain comprises a number of hollow kerb sections 1 having interengaging projections and recesses such as spigots 2 and sockets 3, the sections being spaced at intervals by drain boxes 1<a> leading to catch pits 12. The projections and recesses serve to align the kerb sections and drain boxes for the uninterrupted flow of water through the kerb. The drain box shown consists of two end walls 4 bridged by a portion 5 below which is arranged an opening 7 having a grid 8. The water and other matter entering the opening 7 passes over a surface 11 and thence to the interior of the kerb. The drain box may have a recess 10 for providing a seating for the catch pit cover, and the kerb sections may be similarly formed to support the paving flags. The catch pit cover may be hinged or it may be in the form of a loose paving flag; alternatively, it may be combined in one piece with the drain box.
Patent GB-111474-A (GB)
Title: Improvements in and relating to Means of Multitubular Type for Cooling Heat-producing Bodies.
Inventor: KANTARO NOBUHARA
IPC: H01F27/12
Filed: 1917-10-29
Abstract: 111,474. Nobuhara, K. Oct. 28, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Straight tubes between headers or connecting- boxes.-Apparatus for cooling liquids circulating around heated or heat-producing bodies, for example oil in oil-cooled electric transformers or other electric apparatus, comprises inner and outer rings of tubes 2, 2<1> arranged vertically over the casing 7 containing the transformer &c. 6, and exposed on their exterior to the surrounding air. The tubes may be ribbed or corrugated longitudinally, and open at their lower ends directly to the casing 7, and at their upper ends connect with an annular header or chamber 9. The oil is supplied through a pipe connected to the header 9 and fills the casing 7 and the tubes. A partition 8 may extend downwards within the casing 7 so as to produce a circulation of oil upwards through the less cooled inner row of pipes 2<1> and downwards through the outer tubes, as shown by the arrows. The wall of the casing 7 may be ribbed or corrugated, and is held in position between a flanged base 15 and a channelled ring 14. The tubular apparatus is preferably removable as a whole, and the top plate 9<1> of the header also is removable. A top bar 13 and upright bars 1 form a supporting frame for the tubes. A modified arrangement of tubes is shown in Fig. 6.
Patent GB-579364-A (GB)
Title: Improvements in and relating to the production of hydrocarbons
IPC: C07C5/29
Filed: 1940-10-28
Abstract: Saturated hydrocarbons, having at least one ring containing five carbon atoms, are converted into aromatic hydrocarbons by treatment with an isomerisation catalyst to convert them at least in part into hexamethylene naphthenes which are subjected, together with added hydrogen and at a temperature not exceeding 450 DEG  C., to dehydrogenation using as catalysts one or more of the metals platinium, palladium, rhodium, osmium, iridium, and ruthenium supported on activated carbon.  As catalysts for isomerization may be used those of the Friedel and Crafts' type, preferably aluminium chloride, the temperature being up to 80 DEG  C. Aromatic and/or unsaturated hydrocarbons may be removed by selective solvents, e.g. liquid sulphur dioxide, by treatment with sulphuric acid, or they may be subjected to catalytic hydrogenation, while sulphur and sulphur compounds are converted to hydrogen sulphide and absorbed by the hydrogenation catalyst or otherwise removed.  In an example, a petrol obtained by hydrogenation of a middle oil is distilled into two fractions, the higher (boiling at 95 to 140 DEG  C.) subjected to a mildly hydrogenating catalyst of zinc oxide and nickel at 290 DEG C., subjected to a nickel catalyst, stirred for 10 hrs. at 40 DEG  C. with anhydrous aluminium chloride, hydrogen chloride being bubbled through, the fraction decanted, dehydrogenated at 280 to 320 DEG  C. using a catalyst of 5 per cent platinium on steam-activated coconut-shell charcoal, and finally added to the lower-boiling fraction, the octane number of the petrol being thus raised from 76.5 to 79.6.  Specification 577,813 is referred to in the Provisional Specification.
Patent GB-1255873-A (GB)
Title: Improvements relating to rotor blade root locking means
IPC: F01D5/30
Filed: 1969-03-26
Abstract: 1,255,873. Rotor blade fixing. GENERAL ELECTRIC CO. March 26, 1969 [May 15, 1968], No. 15751/69. Heading F1T. Turbine or compressor blades 18 are locked in axially extending mounting slots 12 in the periphery of a rotor 10 by means of locking members 50 located in gaps 48 between the bases 42 of the slots and the bottom surfaces 36 of the blade roots 26. Each locking member 50 is formed by two metal strips 52, 54 inter-connected by a head 56. After insertion of the member 50 in its gap 48 the strips are bent over to form tabs 58, 60 which respectively abut one end 34 of the root 26 and the corresponding end-face 16 of the rotor 10, the resilience of the head 56, which abuts the other ends 32, 14, holding the tabs 58, 60 in engagement with the ends 34, 16. Strip 54 has a dimple 62 which urges the locking member 50 into engagement with a locating channel 41 in the root bottom 36 so as to hold the root 26 radially against the profiled side surfaces of the mounting slot 12. Each blade 18 has a tip shroud 28 which interlocks with adjacent shrouds (at 30), Fig. 2 (not shown).