baber/WOPTO huggingface dataset:
Patent GB-546643-A (GB)
Title: Improvements in and relating to a method of making electrical insulating material
IPC: H01B3/02
Filed: 1940-10-17
Abstract: 546,643. Electrical insulating material. NORTON CO. Oct. 17, 1940, No. 15403. Convention date, Oct. 27, 1939. [Class 22] Electrical insulating and heat conducting material comprises crystalline magnesia (periclase) in a finely divided form, i.e. of a fineness that it will pass through a 40 mesh screen but will be retained on a 325 mesh screen, associated with a lesser quantity, i.e. 5-30 per cent., preferably less than 15 per cent. by weight, of crystalline alumina or chromium oxide of a similar degree of fineness, in the form of a spinel. The free magnesia may be coated with a magnesia-alumina spinel in the form of a fine powder. Specification 546,642 is referred to.
Patent GB-684388-A (GB)
Title: Improvements in the mounting of aircraft landing wheels
IPC: B64C25/34
Filed: 1951-06-29
Abstract: 684,388. Aircraft undercarriages. GOODYEAR AIRCRAFT CORPORATION. June 29, 1951. [March 26, 1951] No. 15468/51. Class 4. An aircraft landing gear comprises a strut, an axle support attached to the bottom of the strut, a landing wheel axle mounted slidably in the said support and axially slidable therein, an operating mechanism, also mounted in the said support and connected with the said axle in such manner as to allow it to be moved from an inner position and vice versa, and driving elements extending from the said operating mechanism to a point outside said support and arranged so as to be connected with an outside power source. The invention may be applied to undercarriages having single or double wheels in the embodiment shown in Figs. 2 and 3, applied to two wheels, the undercarriage leg 1 shown in a plan cross-section carries at its lower end a cross head 2 which supports axially slidable wheel axles 3 and 4 each prevented from rotating by a key 6. Each axle is bored at 17 and internally threaded at 15 to receive a transverse operating shaft 8 formed at each end with a threaded portion 14 and a cylindrical extension 16 and having at its centre a worm wheel 9, axial movement of the shaft being prevented by collars 10 secured by nuts 12 within recesses 13 in the head 2. Each axle is slotted at 24 to receive a stud 23 which limits its axial movement. A driving shaft 18, fitted with a worm to mesh with the worm wheel 9, is mounted in bearings 20, 21 and is provided with a connection to a power take-off 22 actuated from the pilot's cockpit. When the undercarriage is extended the axles 3, 4 are driven apart to provide a maximum track for the wheels, but during retraction the power drive 22 is operated to draw the wheels together in order that they may occupy a minimum space within the aircraft structure. In an alternative embodiment Figs. 6-9 (not shown) the inner end of each axle is pivotally connected to a toggle lever in turn connected to pins on a toggle disc rotated by a source of power similar to that employed for the operation of the shaft 18.
Patent GB-331989-A (GB)
Title: Improvements relating to the production of cellular solid bodies
IPC: C04B28/26
Filed: 1929-05-17
Abstract: 331,989. Battersby, J. W. May 17, 1929. Porous compositions. - Cellular slabs and moulded articles are made by heating solid, colloidal, water-containing, readily soluble alkali silicates to a temperature of e.g. 200-500‹ C. The time of heating is regulated by the degree of expansion desired. The heating may be in two stages, with an intermediate crushing. Articles may be produced by heating in an ordinary mould or in one which applies pressure to the material during its expansion. The silicate may be in the form of powder, which coheres under the treatment. Filling materials such as coke breeze, pumice powder, cotton or asbestos waste, or a reinforcing material such as wire netting may be introduced. Specification 11959/14, [Class 1 (iii), Oxides &c., Metallic],.is referred to.
Patent GB-919673-A (GB)
Title: Improvements in dental cabinet units
IPC: A47B81/00
Filed: 1961-04-28
Abstract: 919,673. Dental stands. McMASTER, W. A. Nov. 24, 1961 [April 24, 1961], No. 15485/61. Class 81 (2). [Also in Group XIV] A dental cabinet, provided with a shelf-like projection and pivoted about a fixed vertical axis, is movable by power means from a first position, in which the shelf-like projection is located above a dental chair, to another position permitting free movement of a patient into and from the chair. The cabinet 1 is pivoted on a fired hollow spigot 11 and has a projecting shelf 3 which supports an instrument tray 4 and which, in one position of the cabinet, is located above the dental chair between a patient's head 39 and feet 40. The front of the cabinet is concave to afford operating space for the dentist. The cabinet is supported on castors 17, 18 and also on a wheel 13 the axis of which is radial to the spigot 11, and which is driven via reduction gearing 14 from an electric or air motor 15. Power ducts or cables for the motor and other appliances are led through the spigot 11. To occupy the other end position the cabinet moves through an angle " a." In a modification the cabinet is moved by an air pressure ram, the cylinder of which is pivoted about a fixed vertical axis, and the piston of which is pivoted to the cabinet.
Patent GB-658583-A (GB)
Title: Apparatus for planting potatoes
IPC: A01C9/08
Filed: 1949-06-10
Abstract: 658,583. Potato - planting machines. KELLY. F. June 10, 1949, No. 15576. Convention date, Aug. 17, 1948. [Class 6(i)] A potato-planter comprises a frame 2 mounted on a ridging plough 1 and carrying a hopper 3 with tapering sides, the base of the hopper being constituted by a reciprocating slotted plate 4 which feeds potatoes into a tube 6 closed intermediately of its length by a valve 24; the valve is opened intermittently by the reciprocation of a sliding pusher member 27 which feeds the potatoes singly to a drill tube 32 leading to the ground. The sliding members 4 and 27 are driven by cranks 8 and 11 in turn driven by a ground wheel 15 provided with soil-engaging strakes 16. The valve 24 is connected to a lever 26 rocked by engagement with a lug 29 on the connecting rod 12 of the pusher 27. The pusher may terminate in a wire ring 30 from which the potatoes are ejected by engagement with a fixed lug 31. For multiple row planting, separate hoppers and feeding devices are provided.
Patent GB-129346-A (GB)
Title: Improvements in Wireless Signalling Systems.
Inventor: ROGERS JAMES HARRIS
IPC: H01Q1/04
Filed: 1917-10-26
Abstract: 129,346. Rogers, J. H., and Lyon, H. H. Nov. 10, 1916, [Convention date]. Aerials and like radiating and receiving conductors.-The radiating or receiving conductors of a wireless signalling system are insulated and are placed beneath the. surface of the earth or water. In the arrangement shown in Fig. 1, the conductor 16 is placed in an insulating-tube 18 placed beneath the surface 15 ot the earth. The primary or secondary of the transformer T is placed between the conductor 16 and an earthplate 19, or between the conductor 16 and a similar conductor. In the modification shown in Fig. 4, the conductors are placed in an ordinary insulating-envelope. 25, and the receiving-apparatus is placed beneath the earth's surface. Specification 133,083 is referred to.
Patent GB-218650-A (GB)
Title: Improvements in fluid brakes used on precision apparatus
IPC: G01G23/08
Filed: 1924-06-30
Abstract: 218,650. Colin, J. July 5, 1923, [Convention date]. Dashpots for precision apparatus, such as weighing-machines, comprises a cylinder a, a piston-rod c, and a piston b slidable between stops e, f on the piston-rod. The piston is provided with ports h which in the extreme positions are closed by the stop e or by a leaf spring g which tends to return the piston to its intermediate position. In operation, the stroke of the piston in either direction causes the piston to move against one of the stops so checking the piston-rod, the piston is then returned to its intermediate position by the spring g or by gravity, and the piston rod immediately takes up the position of rest or equilibrium imposed upon it by the action of the apparatus to which it is attached.
Patent GB-235885-A (GB)
Title: Improvements in and relating to electric control systems
IPC: H02K19/12
Filed: 1925-06-17
Abstract: 235,885. British Thomson-Houston Co., Ltd., (Assignees of Bany, H.). June 17, 1924, [Convention date]. Systems for alternating-current motors only.- In starting a synchronous motor as an induction motor with unexcited field and automatically switching-on exciting current when synchronous speed is attained, the motor 1 supplied through a tapped transformer 5 has its field winding sliprings 7 connected so as to energize a relay coil 17 which acts in conjunction with a voltage relay 16 to connect the slip-rings to an exciter generator 10. A transformer 23 is preferably used to interlinl: the slip-rings with the coil 17. The arrangement comprises a discharge resistance 21, an economy resistance 30, and an exciter fieldweakening resistance 27.
Patent GB-793010-A (GB)
Title: Substituted piperidine 4-carboxylic esters
Filed: 1956-05-22
Abstract: The invention comprises compounds of the formula <FORM:0793010/IV (b)/1> and acid addition salts thereof, wherein R is hydrogen or an acyl radical, and their preparation by reacting a b -(p-aminophenyl)ethyl halide such as b -(p-aminophenyl) ethyl chloride with 4-phenyl-4-carboethoxypiperidine or an acid addition salt, such as the carbonate, thereof to give the N-[b -(p-aminophenyl) ethyl]-4-carboethoxypiperidine and, for the preparation of compounds wherein R is an acyl group, treating this compound with an acylating agent.  The reaction between the 4-phenyl-4-carboethoxypiperidine carbonate or other acid salt and the b -(p-aminophenyl) ethyl halide is preferably carried out by heating the reactants together in an inert liquid medium, for example, a lower alkanol such as ethanol, in the presence of an alkali metal bicarbonate.  The products may be converted into salts, for example with hydrogen chloride, hydrogen bromide or sulphuric acid.  The compounds are used as analgesics.  In examples: (1) b -(p-aminophenyl) ethyl chloride hydrochloride is reacted with 4 - phenyl - 4 - carboethoxy - piperidine carbonate and the resulting N-[b -(p-aminophenyl) ethyl] - 4 - phenyl - 4 - carboethoxy piperidine is converted into its dihydrochloride; (2) the free base obtained in (1) is converted into its N-acetyl derivative and the corresponding monohydrochloride and (3) purified N-[b -(p-aminophenyl) ethyl] - 4 - phenyl - 4 - carboethoxy piperidine, obtained from the dihydrochloride of (1) by reprecipitation and distillation, is converted into its monohydrochloride.  Starting materials.  b  - (p - Aminophenyl)-ethyl chloride hydrochloride, containing also some b -(p-aminophenyl) ethyl bromide hydrochloride, is made by nitrating b -phenylethyl bromide and reducing the resulting b -(p-nitrophenyl) ethyl bromide with stannous chloride.
Patent GB-934754-A (GB)
Title: Continuous seismic exploration
IPC: G01V1/38
Filed: 1960-05-04
Abstract: 934,754. Magnetic &c. recording etc.; seismographic apparatus. SOCONY MOBIL OIL CO. Inc. May 4, 1960 [May 4, 1959], No. 15811/60. Class 40 (2). [Also in Groups XXXV, XXXIX and XL (c)] In a seismic exploration system utilizing wave source 11 and geophone spread 12 moved in fixed spatial relation, the geophone outputs are applied to magnetic recording head 30, the outputs of reproducing heads 40... 47 are selectively combined in selector 55, the selector output is fed to a. second magnetic recording head 50 and the outputs of selector 55 and reproducing head 51 are fed via mode switch 57 to mixer 63 the output of which is recorded on electro-sensitive paper chart 74. Tho drum recorder 31 is rotated by motor 33 at a speed having a fixed relationship with that of motor 77, which rotates the drum of spiral recording electrode 73, by an automatic control system utilizing a phase detector 104 (see Group XXXV). Paper-driving motor 75 is synchronized with the traverse of boat 10. Selector 55 comprises a parallel combination of on/off switches, one for each of reproducing heads 40 ... 47 and mode switch 57 provides for selection as follows: An amplifier 69 incorporating automatic volume control may be switched into circuit (see Group XXXIX). The ignition of a combustible gas mixture in tube 11 is synchronized with the beginning of the scanning cycle of spiral 73 and with the reproduction of the signals stored on drum 32 by pulses from pick-up 85. The ensuing record on paper 74 is a seismic crosssection of the region explored. In one embodiment of the magnetic recording and reproducing apparatus, heads 30. 40 ... 47 are supported on spring-biased brackets mounted in holders secured to a mounting ring, Fig. 4 (not shown) ; in an alternative arrangement the recording and erase heads are moved by a travelling nut along a rotating drum, and fixed reproducing heads are equi-spaced along the drum, Figs. 6 and 7 (neither shown). Reference has been directed by the Comptroller to Specification 902,417.
Patent GB-895417-A (GB)
Title: Polymerization of olefins
IPC: C01F7/56
Filed: 1958-05-16
Abstract: A catalyst system for polymerizing alpha-olefinic monomers comprises (1) a composition containing titanium, chlorine and aluminium of the type described in Specification 895,418 and which is made by reacting titanium tetrachloride, aluminium, and an inert organic diluent, at a temperature of 80 to 220 DEG  C., (2) a Grignard reagent and (3) an inert organic solvent.  The reagent may be either a lower alkyl or phenyl Grignard reagent. Exemplified reagents are methyl isopropyl, or cyclohexyl magnesium chloride, ethyl, butyl, or phenyl magnesium bromide, and methyl magnesium iodide.  The organic diluent may be benzene, toluene, xylene, heptane, cyclohexane, diethyl ether, kerosene, or chlorobenzene.  Exemplified olefines are ethylene, and propylene. Polyethylene made by polymerizing ethylene using the catalyst system has a softening temperature range above 200 DEG  C., a tensile strength of at least 3,500 p.s.i., a torsional modulus of less than 60,000 p.s.i. at 25 DEG  C., and less than 160,000 p.s.i. at -50 DEG  C. and is insoluble in tetrahydronaphthalene at a temperature of 200 DEG  C.  Polypropylene made by polymerizing propylene using the catalyst system has a softening temperature above 180 DEG  C., a tensile strength of at least 1,500 p.s.i., a flexibility ratio over a temperature range of from 25 DEG  C. to -50 DEG  C. not greater than 2, and the polymer is insoluble in tetrahydronaphthalene at a temperature of 160 DEG  C.
Patent GB-1355166-A (GB)
Title: Activated aluminum anode for electrochemical battery
IPC: H01M4/46
Filed: 1972-04-06
Abstract: 1355166 Cell with aluminium anode and halogen oxidant TEXTRON Inc 6 April 1972 [10 May 1971] 15872/72 Headings H1B The aluminium anode 12 of a cell immersed in an aqueous electrolyte 16 comprising a strongly ionized salt has its surface continuously alloyed, during discharge, by a more noble metal, e.g. mercury, gallium, cadmium, indium or thallium. Preferably, mercuric chloride is added to the electrolyte to provide mercury alloying ions and the strongly ionized salt is ammonium chloride. The cell is recharged by replacing the exhausted anode 12 and electrolyte 16. The cathode comprises a porous inert tube 14, e.g. of graphite, to which a halogen is supplied through a tube 26, the preferred halogen being chlorine. The alloying of the surface of the anode 12 improves the cell performance by removing the aluminium oxide film which would otherwise form. Instead of the chloride, other metal salts which may be dissolved in the electrolyte to give the alloying ions are the bromide, fluoride, iodide, iodate, nitrate and sulphate. Alternative strongly ionized salts are: ammonium bromide, potassium chloride, calcium chloride, potassium bromide, sodium bromide, ammonium sulphate, ammonium perchlorate; ammonium chlorate, sodium metal borate, ammonium phosphate, tetramethyl ammonium chloride, sodium oxalate, sodium succinate, sodium tartrate, ammonium oxalate.
Patent GB-121446-A (GB)
Title: Improvements in and connected with Gas Producers for Propelling Vehicles.
Inventor: SMITH DAVID JOSEPH
IPC: C10J3/00
Filed: 1917-10-18
Abstract: 121,446. Smith, D. J. Oct. 18, 1917. Grates; ash-pits; mechanical stoking.-A gasproducer more especially adapted for supplying internal-combustion engines fitted on vehicles, or boats, is constructed so that there is a mechanical and positive control of the fuel feed and removal of ash, rocking of the grate, and other operations of the producer. The mechanical control referred to is preferably obtained by gearing from a shaft geared to the engine, and in addition to this the throttle of the engine may also automatically adjust the fuel feed and ash discharge, and the supply of steam to the fuel bed. The producer shell may also be formed with inwardly projecting fins for keeping the fire bed well agitated. The producer comprises a circular grate formed, as shown, of six parallel sections 9 pivoted at one end 10, and resting on cams 8 on a shaft 7 driven by worm gearing from a shaft 4 which is mechanically driven, preferably from the engine shaft. The various sections 9 rise and fall in sequence and in conjunction with fins on the shell serve to agitate the fuel throroughly. A fire is started on the grate 9 by opening a door 13<a>, and a hand-pump 28 operates to send a blast of air by way of a pipe 14<b> to the space above the ash pan 16. When a gas-burner 20 indicates that the producer is working correctly the engine is started, and the shaft 4 is thus rotated. The shaft 4 is fitted with adjustable crank-mechanism 15, 15<a>, which operates by means of adjustable ratchet mechanism (a) an intermittently rotating conveyer 17, which feeds the fuel, and (b) an apertured ash-discharger 18 which intermittently discharges ashes. The rocking motion of the grate also commences with the driving of the shaft 4.
Patent GB-578866-A (GB)
Title: Improvements in and relating to valves for internal combustion engines
IPC: F01L7/08
Filed: 1944-08-21
Abstract: 578,866. Rotary valves. BRIGGS MANUFACTURING CO., and GERNANDT, W. G. Aug. 21, 1944, No. 15923. [Class 7 (vi)] A frusto-conical rotary valve 25, of the kind containing all or the greater part of the combustion space, is mounted in a correspondingly shaped seating 27 in the cylinder head 28 there being a relieved area, between a portion of the seating and the surface of the valve, of increasing depth circumferentially from points 80, 81, to points on a line 82 through the centre of the sparking plug hole 61; the depth of the relieved area increases in a direction extending from the narrow end toward the wider end of the valve, from line 79 to line 78. A freely floating frustoconical thrust bearing ring 75, of material such as bronze or lead bronze alloy, is interposed between the surface of the valve and the seating and is received in an annular recess 76 in the valve. The hub, portion 41 of the gear 39 has a circumferential groove 73 which is in permanent communication, through opening 68 in . a sleeve 67, with a passage 70 to which lubricating oil is supplied under constant pressure. A single vertical slot 74 extending downwardly from groove 73 registers once, during every revolution of the gear 39, with an opening 69 in the sleeve 67 and oil is then forced to the valve seating through a passage 71 and ducts 72.
Patent GB-1305673-A (GB)
IPC: G01N31/16
Filed: 1971-05-20
Abstract: 1305673 Mixing flowing fluids ITT INDUSTRIES Inc 20 May 1971 [26 May 1970] 15933/71 Heading B1C In a method and aparatus for reducing the concentration of a constituent in a fluid, a portion of the fluid is separated, the whole or part of the constituent is removed from the separated portion, and the latter is then reunited with the untreated fluid. As described, for the detection of hydrogen sulphide or sulphur in a gel, a pulse generator 25 controls 3-way valve 11 to connect input conduit 10 alternately with conduits 14, 15, conduit 15 having an activated charcoal filter 12. The treated and untreated gases are reunited in conduit 16 which has an outlet aperture (21, Fig. 2 not shown) located to produce a swirling action in mixing tank 19. There is a detector 23 for the constituent of interior, which may be an electrolytic titrator (29, Fig. 3, not shown); in this case the apparatus acts as a multiplier for the detector. The detector output may be an AC or DC and used to operate a meter or recorder or a process control device. The pulse generator 25 may have controls 26, 27 to adjust pulse frequency and duration or may be a synchronous motor operated commentator. The valve 11 may be spring biassed to connect conduits 10, 14 except when energised.
Patent GB-996689-A (GB)
Title: Manufacture of linear polyesters
IPC: C08G63/78
Filed: 1964-04-17
Abstract: A linear alkylene glycol of 2-7 carbon atoms, receovered by simple or fractional distillation from the preparation or polymerization of the bis - (hydroxyalkyl) terephthalate, is reacted without further purification beyond the removal of water and monohydric alcohol in excess of 5%, with terephthalic acid or an alkyl terephthalate in which the alkyl group has 1-7 carbon atoms to form more bis-(hydroxyalkyl) terephthalate for polymerization 30-70% of the alkylene glycol reacted may be so obtained. Glycols specified are ethylene, propylene, butylene, pentylene, hexylene and heptylene glycols. The alkyl terephthalate may be dimethyl terephthalate.  The glycol/acid interaction may take place at a temperature between the boiling point of the reaction mixture and 250 DEG  C., at atmospheric or sub- or superatmospheric pressure, and in the presence of a catalyst.  The glycol/ester interaction may take place at up to 300 DEG  C. under superatmospheric pressure.  The polymerization reaction may be heated up to 325 DEG  C., the pressure being reduced in the latter stages, e.g. to 1-10 mm. to allow the eliminated glycol to distil out.  A catalyst and an inert atmosphere, e.g. N2, CO or H2, may be used. Catalysts specified for both stages of the reaction are: the alkali metals, the alkaline earth metals, Sb, antimonic acid, Be, B, Cd, Ce, Cr, Co, La, Mg, Mn, Ti, Zn and oxides, carbonates and organic or inorganic acid salts thereof. Mixtures of catalysts may be used, e.g. MgCo3/TiO2/antimonic acid.  (MeO)3P is also added in Example (1).  The products may be made into fibres, films and shaped articles.
Patent GB-919758-A (GB)
Title: Refractory brick, method and apparatus for producing high btu oil gas utilizing suchbrick
IPC: C21B9/02
Filed: 1961-05-03
Abstract: 919,758. Checker brickwork for stoves &c. UNITED ENGINEERS & CONSTRUCTORS Inc. May 3, 1961 [May 17, 1960], No. 16004/61. Class 64 (1). [Also in Group XII] A refractory brick for use in the checkerwork structure of a gas-fixing chamber (see Group XII) comprises a thin block 41 having on at least one of its broad faces two vertical pairs of outwardlyextending lugs 42, the total extension of the lugs (i.e. the combined extension where lugs appear on both broad faces) being one half to one times the thickness t of the block and the vertical separation of the lugs of each pair being equal to at least one half the thickness t, each lug providing a flat, horizontal surface coplanar with the top or bottom of the block, which has a generally convex outline at its top and bottom when viewed in cross-section. The bricks are arranged end-to-end in horizontal rows, a number of rows being arranged side-byside (adjacent rows spaced-by the lugs) to form layers of bricks, having horizontal flues, and the rows in alternate superposed layers being arranged at right-angles to provide vertical flues, see Figs. 4, 5 (not shown).