baber/WOPTO huggingface dataset:
Patent GB-1014406-A (GB)
Title: Phosphorus-containing mercaptans
IPC: C07F9/50
Filed: 1964-08-04
Abstract: The invention comprises compounds of formula <FORM:1014406/C2/1> where R1 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, R2, R3, R4 and R5 are each independently hydrogen or unsubstituted or substituted alkyl, cycloalkyl or aralkyl or R2 and R4 together represent a 1,3-trimethylene or 1,4-tetramethylene group, n is 1, 2 or 3 and m is a positive whole number of at most the value of n.  Specified substituents include hydroxy, ether, thioether, t-amino, t-phosphino and halogen.  Recurring R1 or -CR2R3CR4R5SH groups in the same molecule may be the same or different.  The compounds are prepared by reacting a phosphine R1(3- n)P(H)n with an alkali metal, an alkaline earth metal or magnesium or a strongly basic compound thereof, e.g. hydrides, amides or organometallic compounds, thereby to replace m hydrogen atoms by an equivalent of metal, reacting the metal phosphide obtained with a compound of formula <FORM:1014406/C2/2> and treating the product with a weakly acid substance, such as ammonium chloride or sulphate.  The reactions may be effected in organic solvents or liquid ammonia or amines. The products form complexes with heavy metals and can be used for taking metals from aqueous solution into organic solution.  Numerous complexes are specified in examples.
Patent GB-1292913-A (GB)
Title: Machine for the manufacture of concrete and like pipes
IPC: B28B21/34
Filed: 1970-06-25
Abstract: 1292913 Moulding pipes ED ZUBLIN AG 25 June 1970 [17 Nov 1969] 30846/70 Beading B5A A pipe casting machine comprises three vertical supports 6 and 7 connected by transverse plates 8 and 9, the support 6 being located at the axis of a rotatable annular table 2 which is driven by a roller 3, and has two or three vibratable tables 14, 15 each of which can support an outer mould 45, the table 2 being rotatable to move each mould to a working station below a rotatable disc 40, having rollers 41 and centrifugal vanes 41a, which can be lowered into the mould to form synthetic concrete from a silo 25 into a pipe. The disc 40 is supported by a grooved shaft 39, so as to be rotatable by a motor 43 and gear 42, and can be raised or lowered by a piston and cylinder 38 and a cable system 31, 32, 33. In operation, the disc 40 is raised to its upper position, the mould 45 is moved below the disc and clamped by a member 24, and concrete is poured into the mould from the silo 25 via a conveyer 27. The disc 40 is then moved to its lowest position and rotated. At the same time a table 47 is rotated and vibrated by means of a shaft 48 to distribute the concrete. When the disc reaches the upper level of a ring 46 the table 47 is stopped, and the disc continues up the mould to form the pipe. At the completion of this operation, the table 2 is rotated to remove the mould from below the disc 40, and place another mould in position.
Patent GB-424515-A (GB)
Title: Improvements in carding engines for producing slub yarns
IPC: D01G15/70
Filed: 1933-11-07
Abstract: 424,515. Carding-engines for producing slub yarns. OPENSHAW, Ltd., W. A., and MORRIS, J. P. H., Hill Fold Mills, Astley Bridge, Bolton. Nov. 7, 1933, No. 30894. [Class 120 (i)] In carding-engines for producing slub yarns the doffer is provided with strips of card clothing 3 having narrow and broad sections a, b, Fig. 2, alternating with each other so that the threads 8 delivered by the condensing rubbers 7 are formed with slubs 8<a>, Fig. 3. The yarns are wound upon a roller 9 which serves as the supply for a spinning mule. The ends of the broad parts b are tapered evenly at b<1> so as to facilitate the subsequent twisting action on the yarn.
Patent GB-1400753-A (GB)
Title: Actuator assembly particularly but not exclusively for use in a marine steering control system
IPC: F16H57/03
Filed: 1972-09-06
Abstract: 1400753 Operating mechanisms TELEFLEX Inc 6 Sept 1972 [27 Oct 1971] 30964/74 Divided out of 1400751 Heading B7E An actuator assembly for longitudinally moving a flexible motion transmitting core element 12 to transmit motion in a curved path comprises a generally circular housing including a cover 18 and a base 20, preferably both of plastics snapped together at 26, 34, and input means including a shaft 52 carrying a pinion gear 56 to rotate a circular drive means 40, 42, 44 which is rotatably supported in the housing and adapted to receive the core element 12, the housing also including connectors 98 of circular cross-section extending tangentially therefrom and terminating in threaded portions 100. The connectors 98 each have a passage 102 therealong for the element 12 and are diametrically divided along a plane 104 which separates the cover 18 and base 20 whereby each connector is defined in part by the cover and in remainder by the base, the halves of the connector being held together by fittings 106 threaded thereon.
Patent GB-1073255-A (GB)
Title: Process and apparatus for the production of ethylene by pyrolysis of petroleum hydrocarbons
IPC: C10G69/06
Filed: 1964-08-04
Abstract: Ethylene is produced in a process wherein a hydrocarbon feedstock is pyrolysed to yield a product comprising ethylene, a fraction containing C3 and/or C4 hydrocarbons is separated from said product and is hydrogenated, and the hydrogenated fraction is pyrolysed to yield a further product comprising ethylene.  The separated fraction may be (i) a C3 fraction boiling between - 50 and - 40 DEG  C. and consisting essentially of propylene and propane; after hydrogenation of the propylene to propane, the fraction may be pyrolysed in admixture with ethane also separated from the first pyrolysis product, (ii) a C4 fraction boiling between - 15 DEG  and + 5 DEG C.; or either a C3 or a C4 fraction or both in conjunction with (iii) a light naphtha having a final boiling-point of 80 DEG  C. Hydrogenation may be carried out catalytically with hydrogen obtained from the residual pyrolysis gases.  In the second pyrolysis the hydrogenated fraction may be pyrolysed in admixture with the hydrocarbon feedstock.  The latter may be a naphtha, a light petroleum distillate or may comprise propane and/or n- or iso-butane. The first pyrolysis is effected in the presence of steam as a conventional "steam cracking" process.
Patent GB-505629-A (GB)
Title: Improvements relating to the mounting of airscrew blades
IPC: B64C11/06
Filed: 1937-11-11
Abstract: 505,629. AirscrewsDE HAVILLAND AIRCRAFT CO., Ltd., and THOMAS, F. M. Nov. 11, 1937,'No. 31028. [Class 114] An airscrew blade having at its root internal and external bearings with the boss is provided with a layer of vibration insulating material between the blade and all the bearing parts. The insulating material may be reinforced synthetic resin or a rubber composition or a soft metallic alloy. The blade 1 is provided with an internal bore 2 adapted to seat over a spigot 3 whilst externally it is supported by collars which in the case of a variable-pitch propeller has an interposed roller bearing 4, 5, 6. Between the'bearing parts a sleeve 7 of synthetic resin is provided, thus being moulded in situ. There is a similar insulating layer between the shell 8 of the blade and the roller race 6. This layer may be made as a split collar and slipped over the top of the blade before assembly, such material then being cemented into position. Provision may be made for an electric bonding between the blade and the boss. Specification 606,168 is referred to.
Patent GB-1068192-A (GB)
Title: Improvements in or relating to actuating devices for venetian blinds
IPC: E06B9/322
Filed: 1964-08-04
Abstract: 1,068,192. Venetian blinds. HUNTER DOUGLAS INTERNATIONAL Ltd. Aug. 4, 1964 [Aug. 2, 1963], No. 31042/64. Heading E1J. The lift-and/or tilt-rod 2 of a Venetian blind is connected at one end to a flexible shaft or cable 3 coupled at its other end to the driven part 7 of a brake mechanism of the type having a spring 11 arranged to contact the inner surface of the housing 9 when the operating handle 17 is rotated in one direction and to be released from the said inner surface when the handle 17 is rotated in the opposite direction, and is such that the weight of the blind causes the driven part 7 of the brake mechanism to cause the spring to expand against the inner surface of the housing 9 and so lock the blind in any vertical position.
Patent GB-1112967-A (GB)
Title: A method of delivering a compressible fluid at an elevated pressure and a hydraulic intensifier system therefor
IPC: F15B3/00
Filed: 1965-07-21
Abstract: 1,112,967. Compressing gases: hydraulic intensifiers. REXALL DRUG & CHEMICAL CO. July 21, 1965 [July 22, 1964], No.31077/65. Headings F1N and F1P. A double acting pumping unit comprises small area high pressure pistons 51a and 51b reciprocable for compressing fluid (including certain liquids) into a conduit 57 by large area pistons A, B connected thereto and alternately supplied through lines 36, 44 with hydraulic fluid having a pressure which is momentarily increased at the beginning of each compression stroke. The hydraulic fluid is supplied by a pump 3 to a line 34 connected through a reversing valve 35 to the lines 36, 44 and containing a variable orifice valve 8 across which is connected a differential pressure regulating device 14 arranged to maintain a pressure level P2 upstream of the valve 8 and a lower pressure P1 downstream of the valve 8. A second differential pressure regulating device 15 is arranged to receive hydraulic fluid discharged from the valve 8 through a line 18 and to charge an accumulator 23 to a pressure P3 mid way between the pressures P1 and P2. When one of the large area pistons A, B reaches the end of a compression stroke a microswitch MA or MB is actuated to cause operation of the solenoid operated reversing valve 35 to thus supply P1 pressure to the other large area piston to initiate a compression stroke in the opposite direction. The resulting fall in the P1 pressure operates a pressure switch 37 to cause a solenoid valve 30 to changeover whereby the P2 and P3 pressures are connected to the line 34 through non-return valves 29, 29a to momentarily augment the P1 pressure supply until the pressure switch 37 operates to close the solenoid valve 30.
Patent GB-1193086-A (GB)
Title: Package for X Ray Film.
Inventor: LINDENMUTH TERRY NORMAN
IPC: G03C3/00
Filed: 1967-07-06
Abstract: 1,193,086. X-ray film packages. EASTMAN KODAK CO. 6 July, 1967 [7 July, 1966], No. 31098/67. Heading B8C. A package comprises a sheet of metal foil 12 coextensive with a sheet of X-ray film 10 and embossed or knurled to predetermined depth at selected areas (e.g. B<SP>1</SP>, A<SP>1</SP>) so that when the film and foil are enclosed in a light-tight envelope 13 the package is of uniform thickness. The stacking of the packages particularly in dispensers is thereby facilitated. In packaging the film is covered by a band of black paper 15, the foil 12 laid on top, a pull tab 18 integral with the band folded down and the whole inserted into a plastics envelope 13 having a tab 29 sealed transversely at 26 and along the edges. Tab 29 may be lifted to reopen the envelope. The envelope 13 may be made of laminated plastics, e.g. a layer of black and a layer of white plastics.
Patent GB-890994-A (GB)
Title: Improvements in or relating to brushing apparatus
IPC: A47L11/33
Filed: 1958-09-30
Abstract: 890,994. Bearings. AMICA-PRODUKTER, KOMMANDITBOLAGET E. LINDEROTH & CO. Sept. 30, 1958 [Oct. 7, 1957], No. 31214/58. Class 12 (1). [Also in Group XXIII] In brushing apparatus, e.g. a carpet sweeper, a mounting for the or each brush roller 4 comprises a pair of resiliently-distortable bushings 12, 13 of rubber or similar material which are mounted in the apparatus and are closed at one end. A small metal plate may be located on the inner side of the closed end of each bushing. As shown in the Figure, four rollers are provided each of which is rotatably mounted in one of four openings 3 respectively, the latter being formed in the bottom of a container 1 which is divided into four chambers. A cover, not shown, is attached to the container 1 by means of a square peg 9 on the latter, and the cover has attached thereto a handle so disposed that the carpet sweeper may be propelled over a carpet in a direction which makes an angle of approximately 45 degrees with the axes of the rollers. The shafts 5 of the rollers are each preferably constructed of two intertwisted wires between which the bristles are held, the ends of the wires being shaped to form cylindrical journals 11. Specifications 557,672 and 584,652 are referred to.
Patent GB-217146-A (GB)
Title: Improved door closer and check
IPC: E05F3/06
Filed: 1923-12-13
Abstract: 217,146. Nettlefold & Sons, Ltd., and Ely, C. A. Dec. 13, 1923. Operating doors by springs; checks.-In a combined door spring and check of the kind having a liquid check cylinder c and a coiled closing spring arranged in an upper casing, the piston head h of the cylinder check is formed with a forwardly projecting table or plate h<2> upon which rests the connecting-rod g between the piston and crank pin f<3> of the operating spindle. The plate h extends across the cylinder for the full diameter of the piston and is formed with an inclined under part directed towards the inlet valves y in the piston head. The check valve j is formed as a plain stem adapted to be adjusted by a non-rotary sliding movement through the packing gland l<4>, the stem being swivelly connected at one end to a revoluble nut j<3> threaded to engage a screwed member l<2> of a sleeve l secured to the cylinder casing. The pin f<3> is the crank pin of an operating spindle extending through a door-closing spring mounted above the check cylinder.
Patent GB-190340-A (GB)
Title: Improvements in and relating to the manufacture of hard courts for tennis and the like
IPC: E01C13/06
Filed: 1921-11-23
Abstract: 190,340. Welsh, R., and Davin, L. F. Nov. 23, 1921. Continuous paving.-A hard court for tennis is prepared on a drainage foundation by applying thereto a mixture of crushed oxidized clinker ash and crushed red brick, the quantity by weight of clinker ash being equal to or greater than that of the red brick. The oxidized clinker ash is obtained by allowing clinker, withdrawn from furnaces, to continue to burn as long as possible in air or oxygen.
Patent GB-838275-A (GB)
Title: Improvements in or relating to methods of producing silane
Inventor: RADLEY JACK AUGUSTUS
IPC: C01B33/04
Filed: 1958-10-02
Abstract: Pure SiH4 is prepared by continuously feeding a solution of a silicon halide and a liquid suspension or a solution of a metal aluminium hydride into a reaction chamber, continuously removing SiH4 evolved, and continuously removing <PICT:0838275/III/1> the waste products of the reaction.  Halides may be SiCl4, SiBr4, SiI4, or SiHCl3, and the aluminium hydride may be NaAlH4, LiAlH4, Ca(AlH4)2, or Mg(AlH4)2. SiCl4 and LiAlH4 in solution in diethyl ether or tetrahydrofuran are fed respectively at 4, 5 into reservoirs 1, 2 while inert gas enters at 6, 7.  The solutions are metered through 8, 9 to provide a stoichiometric excess of LiAlH4 and are intimately mixed in mixing vessel 3 suitably packed to restrict flow and ensure that reaction just commences on entry into reaction tower 10.  The reaction mixture passes through tower 10 containing packing 11 to delay passage of the mixture to 5-10 seconds to ensure substantially all SiH4 is evolved before the mixture enters reservoir 13. Packing 11 may be silica helices, beads, balls, or rings, or a system of inclined plates, perforated or not.  Inert gas, e.g. H2, enters at 12 to sweep out SiH4 and spiral-wound condenser 15 with refrigerating fluid at - 80 DEG  C. is provided to condense vaporized solvent.  Spent solution and condensed solvent flows into reservoir 13 forming a liquid seal from which the liquid is removed at the same rate as that of entry through metering device 14, e.g. adjustable tap, capillary or metering pump.  The apparatus may be made of pure silica. Specifications 745,698 and 793,718 are referred to.
Patent GB-387440-A (GB)
Title: Driving mechanism for motor road vehicles
IPC: B60K17/36
Filed: 1931-11-13
Abstract: 387,440. Lubricating by mechanical means. LEYLAND MOTORS, Ltd. and NAYLOR, J. T., Motor Works, Hough Lane, Leyland, Lancashire. Nov. 13, 1931, No. 31498. [Class 12 (iii).] A clutch 9 is contained in an extension 12 of an axle casing 13 and is lubricated by means of oil conveyed through a passage 17 from a scoop 16 extending close to the worm 2 driving the axle. Oil preferably extends up to the centre line of the driving shaft 1.
Patent GB-296924-A (GB)
Title: Improvements in or relating to mechanical stokers
IPC: F23H11/00
Filed: 1927-11-23
Abstract: 296,924. Yarrow, H. E. Nov. 23, 1927. Grates; mechanical stoking. - The front end of a mechanical stoker such as a chain grate C projects beyond the fuel hopper A and is surrounded by an air box D from which a duct E is led to means, such as the forced draught fan, for inducing a current of air from the stokehold through the lower and upper flights of this part of the grate to cool it and thus prevent caking of the fuel. An air trunk G at the back of the hopper A is connected with the duct E by a pipe F to provide a current of cooling air between the hopper and the furnace, this cooling being assisted by lagging H.
Patent GB-663654-A (GB)
Title: Improvements in or relating to fuel feeding apparatus for an internal combustion engine
IPC: F02M59/00
Filed: 1948-12-07
Abstract: 663,654. Centrifugal governors; engine stop-gear. CUMMINS ENGINE CO., Inc. Dec. 7. 1948 [June 2, 19481, No. 31633/48. Classes 57 and 122(iv) [Also in Groups XXVII and XXVIII] In a fuel feeding apparatus tor an internal combustion engine (see Group XXVIII), the amount of fuel delivered by the fuel metering pump 27 is governed by the position of a control member 124 which is urged upwards by a spring 126 and depressed by a lever 132 of a bell crank 131 mounted on an eccentric 133 formed on a shaft 135, movement of the bell crank being controlled automatically by a governor 144 or effected manually by rotation of the shaft 135 and eccentric 133 (see Group XXVII). The governor is driven through gears 44, 151 from a shaft 23 rotating at engine speed and comprises low speed weights 145 whose outward movement is limited bv an enclosing sleeve 165 and high speed weights 146 having fingers 153 engaging a sleeve 154 which is urged downwards by a lever 140 clamped to a shaft 141 under the influence of an adjustable spring 162. Increase in engine speed causes the weights to move outwards to raise the sleeve 154 resulting in clockwise rotation of the lever 140 against the force of the spring 162, permitting anti-closkwise movement of the bell crank 131 and raising of the control member 124 by the spring 126 so that more fuel is bled from the pump 27 and less delivered by it. Fuel is supplied to the pump 27 through an overspeed stop valve 57 which is normally held open against the pressure of a spring 180 by an arm 176 of a bell crank 175 engaging a shoulder 177 on the valve stem. At a predetermined speed a weight 170 housed in the shaft 23 moves out against the force of a spring 173 to engage the other arm 174 of the bell crank thereby causing the arm 176 to move away from the shoulder 177 so that the spring 180 closes the valve. The valve is re-set in the open position by manual operation of a cam member 186. A torsion spring 181' urges the bell crank 175 and the cam member 186 to the positions shown in Fig. 4.
Patent GB-222353-A (GB)
Title: Improved means for spraying decarbonizing liquids into the cylinders of internal combustion engines
IPC: F02B77/04
Filed: 1923-12-17
Abstract: 222,353. Link, C. E. Dec. 17, 1923. Air-pressure sprayers.-Apparatus for spraying decarbonizing liquids into the cylinders of internal-combustion engines comprises a pump, 1, Fig. 2, into which passes a tube 5 which is bent at 8 and acts as a retainer to hold liquid such as denatured alcohol in the lower part of the pump cylinder but permitting excess to escape. A small hole is formed at 6 so that on operating the pump a small quantity of liquid mixes with the air and is ejected as a spray. The tube has connected to it a nozzle G bent so that when inserted through the sparking plug opening of an internal-combustion engine it will direct the spray towards the cylinder. Fig. 3 shows an attachment for use when the sparking plug hole is not easily accessible which comprises a body 12 having a chamber 13 through which passes a tube 14 provided with slots and perforations 16 and held in place by means of gland nuts 15, a handle 19 being provided by which the nozzle may be rotated.
Patent GB-843261-A (GB)
Title: Improvements in or relating to production of chlorides of metals
Inventor: GIBSON ALLAN ROBERT
IPC: C01G1/06
Filed: 1955-11-08
Abstract: Anhydrous metal chlorides are produced by reacting an oxide of the metal (other than oxidic titanium-bearing material) with chlorine in the presence of carbon or carbon monoxide in a fused alkali and/or alkaline earth metal chloride.  Metals specified are beryllium, thorium and uranium.  In the case of metals having only one stable chloride, it is desirable to add a chloride of a metal such as iron having more than one stable valency.  Carbon, if used, may be in massive or finely-divided form.  In one example the chlorine was passed into the melt through a silica tube to which was attached a graphite mass resembling a bevel gear with its larger diameter uppermost, the projections of which defined channels for the introduction of the chlorine into the melt.  If carbon monoxide is used it is preferably premixed with the chlorine.  In the examples thorium tetrachloride and uranium trichloride are produced: in the latter process uranium dioxide is used and hydrogen passed into the upper part of the melt to prevent formation of higher chlorides.
Patent GB-466126-A (GB)
Title: Electro-deposition of ruthenium
IPC: C25B11/08
Filed: 1935-11-18
Abstract: Compounds are obtained by reaction of ruthenium nitroso compounds with pyridine, ethylene diamine or triethanolamine.ALSO:Nitroso salts of ruthenium are formed by dissolving ruthenium nitroso hydroxide in an acid.  Nitroso ammino compounds are formed by reacting ruthenium nitroso hydroxide or a nitroso salt with ammonia.  A bath for the electrodeposition of ruthenium is prepared by fusing ruthenium with potassium hydroxide and potassium nitrate, dissolving the product in water and acidifying the solution.
Patent GB-1126435-A (GB)
Title: Improvements in or relating to oscillators
Inventor: GEORGE ROGER GEOFFREY
IPC: H03B5/00
Filed: 1966-07-15
Abstract: 1,126,435. Pulse generators. STANDARD TELEPHONES & CABLES Ltd. 15 July, 1966, No. 31894/66. Heading H3T. A pulse generator comprises a gating circuit G2 (Fig. 2) feeding the input A of a delay line, a pulse being taken from a tap B to the input of G2 as in Specification 1,110,093, and a second gating circuit G3 providing the second input of G2 and itself fed from the output of G2 and the output of the delay line. The gates are of the NAND or NOR type depending on the polarity of the pulses, and can be in integrated form. The two gates form a bi-stable circuit which is changed over at the fundamental oscillating frequency and prevent operation at spurious frequencies due to noise and other frequencies. To prevent the circuit sticking in a mode where A, B and C are all at the same voltage, a third gate G13 (Fig. 5) is supplied either from points A, B, C or (as shown) from taps on the line, so that the output of G13 forces the bi-stable circuit to change over if all its inputs are equal. By including a fourth gate G10 in the back-coupling from the tap(s) on the line, specific harmonics may be excluded by suitable choice of the positions of the taps P, Q and R.