baber/WOPTO huggingface dataset:
Patent GB-343165-A (GB)
Title: Process for preparing silicyl compounds
IPC: C07F7/04
Filed: 1929-11-15
Abstract: Organic silicon compounds are prepared (1) by interaction of hydroxy-carboxylic acid esters with silicic acid alkyl esters, and (2) by treatment of hydroxy-carboxylic acids or their esters or salts with silicon halides.  In the second method, acid-fixing agents such as pyridine are preferably present when free hydroxy-carboxylic acids are employed; whilst when the salts are used, organic solvents such as pyridine or ether in which the salts are soluble may be present. The products are more resistant to water than known silicon compounds and are soluble without decomposition in weak alkalies; moreover, the products containing carboxylic esters are soluble in fats.  According to the examples, (1) ricinoleic acid ethyl ester is heated with silicic acid tetra-ethyl ester whereby silicyl ricinoleic acid ethyl ester is formed with elimination of alcohol; (2) silicyl ricinoleic acid is obtained by heating ricinoleic acid with silicon tetrachloride in the presence of ether and pyridine; it is converted into its calcium salt by addition of calcium chloride to its solution in aqueous ammonia; treatment with bromine gives a dibromo-derivative of the silicyl ricinoleic acid, which also may be converted into its calcium salt; (3) silicyl dioxystearic acid is prepared by adding silicon tetrachloride to a solution of the anhydrous zinc salt of 9 : 10-dioxystearic acid in pyridine and chloroform; (4) heat treatment of a solution of anhydrous zinc lactate in pyridine with silicon tetrachloride yields silicyl lactic acid; (5) O-silicyl salicylic acid methyl ester is obtained by interaction of salicylic acid methyl ester with silicon tetrachloride until no more hydrochloric acid is evolved; similarly O-silicyl salicylic acid amyl ester is obtained from salicylic acid amyl ester and silicon tetrachloride.  It is stated that silicyl ricinoleic acid may also be iodinated and the product converted into salts.
Patent GB-1126169-A (GB)
Title: Process for the conversion of hydrocarbons
Inventor: BITTNER CLARENCE WALTER
IPC: B01J29/06
Filed: 1967-07-31
Abstract: 1,126,169. Hydrocracking. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 31 July, 1967 [1 Aug., 1966], No. 35038/67. Heading C5E. A process for the conversion of hydrocarbons comprises contacting the hydrocarbons at elevated temperature and pressure and in the presence of hydrogen with a catalyst comprising a crystalline aluminosilicate intimately associated with a catalytically active metal, the intimate association having been achieved by reacting the crystalline aluminosilicate with an aqueous solution of a salt of the catalytically active metal at a pH in the range of from 6 to 12, so as to incorporate a greater amount of catalytically active metal into the crystalline aluminosilicate than the original cation equivalent of the aluminosilicate. Suitable catalytically active metals include titanium, vanadium, chromium, the iron group, copper and zinc; platinum or palladium group metals in smaller quantities may also be incorporated. In an example gas oil is hydrocracked using an aluminosilicate containing 13À1% of nickel, equal to 120% of its original sodium equivalent.
Patent GB-860206-A (GB)
Title: Improvements in or relating to hot water boilers
IPC: F24H1/48
Filed: 1957-11-11
Abstract: 860,206. Hot-water boilers; combustion apparatus. ACCUM A.G. Nov. 11, 1957 [Nov. 12, 1956; April 26, 1957], No. 35127/57. Class 51 (1). [Also in Group XIII] Gases from a combustion chamber 3 pass, from an opening 24 through a bell-shaped water jacket 4 forming the chamber, over the tops of two short walls 27 extending radially, at either side of the opening 24, between the belljacket 4 and a surrounding jacket 7, to enter an annular flue 11 between the jackets before passing to a flue outlet 30 extending through the boiler insulation jacket 10. At least one baffle 28 is located in the flue 11 at each side of the opening 24 and is provided with a line of apertures and a similarly apertured hit-or-miss shutter movable so as to allow the gases to flow through the apertures on first heating-up. Such a baffle and shutter are described in Specification 35910/57. The baffles 28 shown have gaps 29 beneath so that the gases flow through these and change direction. There may be other baffles so that the gases flow through a number of up and down courses. The combustion chamber 3 may be fired with solid fuel supplied with air from beneath the grate and simultaneously or alternatively it may be fired with oil from a nozzle 14 at the end of an oil pipe 13 in an air supply pipe 12. The oil may be introduced from below into the chamber 3. The water heated in the jackets 4, 7 passes to radiators through an outlet 23 and returns to an inlet 22. It also passes to a jacket 15 surrounding the air pipe 12 and passes back through tubes 18 to heat a separate body of water in a chamber 2 having an inlet 16 and an outlet 17 for a draw-off supply.
Patent GB-1476604-A (GB)
Title: Supercharged boiler
IPC: F22B33/18
Filed: 1975-08-28
Abstract: 1476604 Steam generator FOSTER WHEELER ENERGY CORP 28 Aug 1975 [28 Aug 1974] 35562/75 Heading F4A In a steam generator a furnace section 38 and a convection section are placed within a pressure vessel 12 and the exhaust gases for the steam generator exit through an exhaust drum 100 to drive a supercharger comprising a motor 112, a compressor 104 and a turbine 102 such that hot air is forced downwardly through an air duct 108 in the air space 74 between the pressure vessel 12 and the convection section, the air mixing with fuel at the burners 96, 98. During start-up, the compressor 104 is driven by the motor 112 to compress air and feed it through the air duct 108 and the annular air spaces 74, 110 to the burners 96, 98. By this means the compressed air raises the temperature of the structure within the pressure vessel 12 so that within a short time the burners 96, 98 can be started up without the creation of very large temperature gradients. A feed water line 20 leads through an economizer 24, provided between the furnace section and the base of the convection section, through evaporator tubes 36 which envelop the furnace section 38. The convection section includes a stack of heat exchangers 56, 68, 60 which enable steam to be generated to exit through a steam line 82. The section 78 of the heat exchanger constitutes a superheater which is screened from the hot gases by the economizer 24.
Patent GB-343560-A (GB)
Title: Improvements in and relating to the securing of hoists for derricks
IPC: B66B7/06
Filed: 1929-11-21
Abstract: 343,560. Rope grips. MAGEE, J., 14, Radnor Place, Birkenhead. Nov. 21, 1929, No. 35583. [Class 78 (ii).] A removable grip and lanyard is employed for temporarily securing wire ropes &c. such as a hoisting rope 5 of a derrick, the arms 1 of the grip being pulled together by a spring 8 while a lanyard 7 passing through eyes 6 at the ends of the arms further compresses the arms as soon as it comes under tension and causes the wide jaws 3 to bind the rope 5 and exert a strong frictional hold thereon. To avoid injury to the rope the jaws carry detachable bushes 9 with rounded edges 10. The faces of the jaws meet in a plane which does not pass through the pivot 2, so that the rope 5 does not press directly on the line of closure. A bolt and butterfly nut may replace the spring 8.
Patent GB-795830-A (GB)
Title: Distortable container electric switch
Inventor: QUINT BERNARD HENRY JOHN
IPC: H01H33/66
Filed: 1955-12-12
Abstract: 795,830. Distortable - container switches. PLESSEY CO., Ltd. Dec. 12, 1956 [Dec. 12, 1955], No. 35630/55. Class 38 (5). The movable contact of a switch is constituted or carried by an airtight bellows 1 which can be flexed laterally of its axis to cause the movable contact to co-operate with a fixed contact 5 arranged within the bellows. Fig. 1 shows a double-pole switch in which the movable contacts are formed by metal bellows and the fixed contacts by wires 4 passing through insulating seals 6b and having heads 5 of precious metal. A connecting tag 3 is wrapped around the fixed end of each bellows and connecting lugs 4a are formed in each wire. The bellows are flexed by a common insulating plate 6 which is moved by a spring having a fulcrum projection to equalize the contact pressures at both poles. The spring may be held in the inoperative position by a toggle arm 9, Fig. 3 (not shown). The bellows may also be of insulating material carrying the movable contacts and the insulating seals 6b may be replaced by metal plugs from which the wires 4 are insulated. The bellows may be evacuated or filled with inert gas.
Patent GB-467908-A (GB)
Title: Improvements in suction nozzles for vacuum cleaners
IPC: A47L9/04
Filed: 1935-12-24
Abstract: 467,908. Vacuum cleaner nozzles. ELECTROLUX, Ltd. Dec. 24, 1935, No. 35684. Convention date, Dec. 24, 1934. [Class 8 (i)] In a vacuum-cleaner suction nozzle fitted with a reciprocating beater, the movements of the beater are produced by intermittently acting pressure differences between the pressure of atmospheric air and the low pressure set up in the nozzle on suction operation of the machine. The beater 15, Fig. 1, is connected by springs 16 to the nozzle and is carried by a diaphragm 14 clamped between the two parts 10, 11 of the nozzle ; the lower chamber 20 thus formed is in constant communication with the suction mouth 21 and suction conduit 22 ; the upper chamber 19 is connected alternately to atmosphere and to the suction conduit 22, to effect reciprocation of the beater, by a valve 17 rotated by wheels 43, engaging the supporting wheels 33. The air passing through the valve may be cleaned by a filter. In a modification, the valve is rotated independently of the movement of the nozzle by means of an auxiliary air stream, passing over vaned turbine wheels on the ends of the valve. In a further modification, Fig. 7, the beater 15 is connected by springs 41 to the nozzle and by a spring 38 to a plate 37, carrying a valve 40 adapted to open and close the chamber 43 which is in constant communication with the suction conduit, and valves 39 controlling chambers 42 which communicate through ports 44 with the atmosphere. In the position shown, atmospheric air enters the chamber 19 and forces the beater downwardly ; the plate 37 follows when the spring 38 overcomes the difference between the atmospheric pressure acting on the underside of the plate 37 and the suction acting on the top thereof. When the plate 37 thus moves, suction is applied in the chamber 19 and the. beater moves upwardly, the plate 37 being again actuated after a short-interval of time.
Patent GB-368854-A (GB)
Title: Improvements in or relating to electric switchgear
IPC: H01H3/40
Filed: 1930-11-03
Abstract: 368,854. Actuation of switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and KEELEY, F. J., Hillmuir, Chester Road, Streetly, Birmingham. Nov. 3, 1930, No. 35713/31. Divided on 366,490. Drawings to Specification. [Class 38 (v).] Sliding switch-carriage arrangements; oil switches; electric-motor actuation.-The Specification describes and illustrates the same subjectmatter as Specification 366,490, from which it was divided, but the claims differ.
Patent GB-375711-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/90
Filed: 1931-12-24
Abstract: 375,711. Cranes. ARROL & CO., Ltd., SIR W. and SHEPHERD, R. G., 92, Rigby Street, Parkhead, Glasgow. Dec. 24, 1931, No. 35743. [Class 78 (iv).] In a jib crane, a sheave 4 or other means in the path of the hoisting rope 5 moves an element 18 in accordance with the load, and this element co-operates with another element 19, which is actuated by the luffing movement of the jib, so as to indicate safe-load conditions and/or to prevent overloading or overluffing ; or any devices 18, 19 moved in accordance with the load and the radius, respectively, cooperate to give an audible signal and to cut off power on overloading or overluffing. As shown, the sheave 4 is mounted on a bell-crank lever 7, 12 restrained by a spring 14, and operates through a link 17 a pointer 18 moving over a quadrant 19. The quadrant is moved about the same axis 20 as the pointer, by a cam 21 pivoted at 23 and operated by a link 27 connected to the jib. The cam 21 carries a pointer 24 moving over a dial 25 to indicate the radius of the jib. Switches 28, 29 on the quadrant 19 are operated in succession by members 30, 31 on the pointer 18 so as to close the circuit of a bell 32 and then to operate a circuit-breaker 33 in the main supply. A pushbutton switch 34<1> permits the operator to close the main circuit again in order to remove the overload condition. The quadrant 19 may be suitably marked, the line 34 indicating the maximum safe load. Specification 138,707, [Class 78 (ii), Lifting &c.], is referred to.
Patent GB-1076132-A (GB)
Title: Suction cleaner
IPC: A47L9/00
Filed: 1964-09-01
Abstract: 1,076,132. Suction cleaners. HOOVER Ltd. Sept. 1, 1964 [Sept. 10, 1963], No. 35795/64. Addition to 1,052,421. Heading A4F. A suction cleaner comprises a casing 11 having a hinged lid 12 and within which is mounted a motor-fan unit 31, which is separated from a chamber containing a filter bag 4 by a portion 51 of a partition 45, a second portion 49 of the partition 45 extending over the motor-fan unit 31 and arranged to support at least one cleaning tool 88.
Patent GB-481631-A (GB)
Title: Process for the decomposition of wood for the production of cellulose
IPC: D21C1/02
Filed: 1936-12-31
Abstract: In the manufacture of cellulose, wood is pretreated before applying thereto any lignin-removing or oxidizing treatment, with a controlled mixture of steam and oxygen or air, and then without intermediate oxidizing treatment with a known reagent to remove the greater part of the lignin.  Temperatures and pressures in the lignin-removing step may be lower than usual due to the pretreatment.  The steam and air mixture may be produced by causing hot air to act upon damp wood, part of the moisture content of the wood being given off as steam. The ratio between the partial pressures of steam and oxygen is preferably between 2 : 1 and 5 : 1 and the preferred temperature range is 100-200 DEG  C. The wood may be subjected to a preliminary treatment with weakly acid or alkaline liquids, small quantities of substances to catalyze the oxidizing action, e.g. ferric nitrate being employed if desired.  These preliminary treating solutions are not strong enough to effect decomposition themselves.  A preliminary steaming treatment may also be employed.  The ratio of oxygen to steam in the treating mixture may be reduced during the process if desired. Suitable encrustant solvents for the final treatment are alkalies, alkali hypochlorites, or organic solvents such as alcohols, ketones, phenols, or dioxane, hydrous or anhydrous.  This treatment may be combined with a disintegration treatment. Organic solvents are readily recoverable.  In examples: (1) spruce chips are steamed, treated with a mixture of equal volumes of steam and air, the ratio of oxygen to steam being reduced towards the end of the treatment, and then digested with alkali and disintegrated; (2) moist beech wood chips are heated in an autoclave with compressed air.  Hot air or steam may be fed in and steam-air mixture may be let out and the partial pressure of the steam is kept just below saturation point. The current of air fed in may be increased and diminished several times in succession and is finally cut off altogether.  The material is subsequently treated for a time with saturated steam, and then extracted with dilute alcohol and disintegrated.  Other examples treat pine wood chips, the final treatment being with alkali; and aspen wood chips, the final treatment being with alkali and chlorine, in lower concentrations than those normally employed.
Patent GB-619354-A (GB)
Title: Combined spark plug and fuel priming means
IPC: F02C7/264
Filed: 1946-12-04
Abstract: 619,354. Electrically-igniting burners. ARMSTRONG SIDDELEY MOTORS, Ltd., and STOKES, M. A. Dec. 4, 1946, No. 35870. [Class 75 (iii)] In a torch igniter or combined spark plug and fuel priming means particularly for initiating ignition in a combustion chamber of a liquidfuel internal combustion turbine engine, of the kind in which the priming fuel is supplied along a bore in the central electrode of the spark plug, the priming fuel is supplied to the central electrode from a pipe 11 connected to the body 14 of the spark plug, and a high-tension wire 18 for the central electrode 24, extending along the interior of the pipe, is encased in a plurality of porcelain or other insulating beads 19 which are fuel resistant and which at all times hold the wire out of contact with the pipe and allow the pipe to be additionally insulated from the wire by the fuel.
Patent GB-764099-A (GB)
Title: Improvements in or relating to well drilling assemblies
Inventor: WHITTLE FRANK
IPC: E21B44/00
Filed: 1954-12-10
Abstract: 764,099. Boring earth and rock. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Sept. 26, 1955 [Dec. 10, 1954], No. 35907/54. Class 85. A rotary well drilling assembly has two or more telescopic hydraulic subs 8, 8' &c. interconnected by collars 10, 10' &c. connected between a drill string and a drill bit 2 for controlling the weight on the bit. Each sub comprises a piston member 3 dividing a cylinder member 4 into upper and lower spaces 5, 6 respectively, the space 5 being in communication with fluid pumped down the drill string to bit nozzles 11 and the space 6 being in communication with the fluid in the borehole and means being provided to prevent relative rotation between the piston 3 and the cylinder 4. In Fig. 1 the drill string has been lifted so taking the weight of the subs 8"', 8", 8' and the cylinder 4, the weight on the bit 2 being due to the pressure difference on the piston 3. This pressure difference may be controlled by varying the rate of circulation of fluid through the drill string. To substantially increase the weight on the bit the drill string is lowered until the piston in the sub 8' moves up in its cylinder when the weight on the bit is the weight of the sub 8, the collar 10 and the pressure difference on the piston in the sub 8', small adjustments in weight being made by adjusting the said pressure difference. The adjustment therefore constitutes a coarse variation by bringing a selected sub into operation and then a fine variation by controlling the pressure difference acting on the piston in said sub. The collars 10, 10' &c. may have different weights. An hydraulic motor may be placed adjacent the bit 2 and a ram device as described in Specification 755,207 may be interposed between the hydraulic motor and the subs. Specification 732,423 also is referred to.
Patent GB-832580-A (GB)
Title: Improvements in or relating to reading head for magnetic recordings
Inventor: WATKIN BRIAN LESLIE HIGHFORD
IPC: G11B5/33
Filed: 1957-11-19
Abstract: 832,580. Reading head for stationary magnetic tape. DECCA RECORD CO. Ltd. Nov. 18, 1958 [Nov. 19, 1957], No. 36042/57. Drawings to Specification. Class 40 (2). For reading a stationary or slow-moving magnetic tape, " chopping " means are applied opposite the reading gap in the head to vary the reluctance of the immediate region on the opposite side of the tape. The means is either an A.C.-energized ferro-magnetic member or a rotated cog-form ferro-magnetic member. A single member of either form may be applied opposite a multiple reading head simultaneously scanning parallel tracks on the tape. The reading head may thus be of normal moving- tape type. Specification 822,240 is referred to.
Patent GB-1317060-A (GB)
Title: Printing method and apparatus for performing the printing method
IPC: B41M1/10
Filed: 1970-07-24
Abstract: 1317060 Printing apparatus W PHILIPP 24 July 1970 [2 Aug 1969] 36057/70 Heading B6C Articles 37 are printed on by an offset platen press which comprises an intaglio printing plate 32, an offset member 22 which is mounted on a horizontally displaceable carriage so that it moves between a position over the plate 32 and one over the article 37 which is to be printed, and cams 35, 36 which engage the mounting of offset member 22 and cause it to be vertically reciprocated in these positions. The offset member 22 is of a material which is so little wetted by ink, compared with the articles printed, that cleaning of the offset member is not required. Preferably the material of the offset member is silicone rubber. The plate 32 is preferably of steel, and is inked by a reciprocating brush 57 and scraped by a doctor blade 83, both brush and blade being mounted on a second displaceable carriage 50. The offset member 22 is resilient, and can print on a curved article 37. Alternatively four offset members may be mounted on arms and rotated about a centre, so that they contact intaglio printing plates and articles to be printed in turn.
Patent GB-994984-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/04
Filed: 1961-10-09
Abstract: 994,984. Hydraulic presses. A. FERRANTI. Oct. 9, 1961 [Oct. 7, 1960], No. 36218/61, Heading B5F. [Also in Division B3] An hydraulic press for embossing, bending, punching, and crowning boiler ends, comprises a framework consisting of at least one arched structure B, Fig. 1, connected to the upper and lower ends of two uprights 34, 36 arranged and fixed laterally to a base A, and a bracket D carried at the upper end of the uprights and supporting the movable equipage F, such as the press table 50, of the press. The arched structure may consist of two symmetrical parts bolted together, the lower part being bolted to the base A carrying a work table 14, and the upper part having its side faces 16, 18, Fig. 4, extended to form the bracket D and secured by bolts 38 to the uprights 34, 36. An end plate is secured to the plates 16, 18 and, with the side plates, forms guide surfaces 48 which co-operate with surfaces 56, 58 on a member 52 forming part of the movable equipage F which has a box-like structure; the uprights 36, 38 also provide guide surfaces co-operating with surfaces on the member 52 and plates 64, 66. The member 52 carries the press table 50 and can be raised or lowered by the combined efforts of at least two piston-and-cylinder devices 70, 74 and 72, 76, Fig. 5, when the piston 76 is clamped to the plate 50 by a pair of arcuate segments 80 engaging a groove 94 in the piston, the devices being mounted on plates 28, 30 between the side plates 16, 18. When the segments 80 are released from the groove, the piston 76 can be operated independently of the device 70, 74. A further piston-and-cylinder device K, Fig. 1, may be provided to supply a side pressure for use when crowning boiler ends. The framework of the press may have two or more arched structures B. Specifications 994,984 and 994,985 are referred to.
Patent GB-1013216-A (GB)
Title: Improvements in brazing alloy
IPC: B23K35/30
Filed: 1962-09-24
Abstract: A brazing alloy consists of: .Cr.16-24% .Cu.4.5-15% .Ge.17.5-25% .Ti.0.1-0.6% the balance, apart from impurities, being nickel. Impurities mentioned are C, H, O, N and Fe, the top limit therefor being given as 0.1%, and 0.75% Si may also be present.
Patent GB-1155051-A (GB)
Title: Alloy
Inventor: THIELMAN KONRAD
IPC: C22C5/00
Filed: 1966-08-12
Abstract: 1,155,051. Alloys. ISABELLEN-HUTTE HEUSLER K.G. Aug. 12, 1966, No.36249/66. Heading C7A. An alloy for use in the production of precision resistors has the following percentage composition: - Mn 6 - 11 Ge 0À1 - 8 Cu and/or Ag the remainder. The alloy may also contain not more than 10% in total of one or more of Sn 0-3, Sb 0-1, As 0-0À5, Ga 0-5, In 0-1, Al 0-4, Zn 0-5, Ni 0-5.