baber/WOPTO huggingface dataset:
Patent GB-704864-A (GB)
Title: Improvements in rectifier type power supply systems
IPC: G05F1/34
Filed: 1950-07-04
Abstract: 704,864. Automatic control systems for rectifiers. WESTERN ELECTRIC CO., Inc. July 4, 1950 [July 6, 1949], No. 16644/50. Class 38 (4) Two similar rectifying systems supply a load in parallel, there being controls which keep the output current constant and shared equally between the systems. Several rectifiers of the dry metal or discharge tube type may be connected in series in each system. The voltage drop across a resistance 15 carrying the load current, through direct coupled amplifiers 57, 57a varies the resistances of pairs of valves 12, 13 and 12a, 13a in the outputs from the two rectifiers in such sense that they tend to restore the current to its set value (fine control). The input A.C. voltage to each rectifier is controlled by the input servocontrol which comprises a variable auto transformer controlled by a servomotor operated in one direction or the other according as the value of a variable inductance 44 (44a) varies above or below a given value. The values of these inductances 44, 44a are controlled by the currents in windings 39, 39a which are connected in shunt to the series valves 12, 13 and 12a, 13a (main control of the output current) and by the load currents of the other rectifier systems passing through windings 17, 17a (to control the load sharing). The various constant D.C. voltages for operation of the direct coupled amplifiers are derived through a subsidiary rectifier (RECT) and three voltage regulator tubes. The various parts of the circuit are described in detail with reference to Figs. 1a, lb, 1c (not shown) where the following additional features are shown: one winding of each two phase servomotor is energized between the mid point of the input autotransformer and the junction of a fixed inductor and the variable inductor 40, (40a) ; limit switches stop each servomotor from overrunning at each end of its travel; after operation of a switch manual control may replace automatic control ; two remotely controlled relays allow the driving of the servomotor to its lower limit, one whether or not the system is set for manual control and the other only when it is not. In a modification, the series regulator valves are connected in the output leads, Fig. 3b (not shown). Specification 704,940 is referred to.
Patent GB-440885-A (GB)
Title: Improvements in apparatus for opening and closing taps at predetermined times
IPC: F23N5/22
Filed: 1934-06-05
Abstract: 440,885. Clockwork-actuated valves. BRITISH, FOREIGN, & COLONIAL AUTOMATIC LIGHT CONTROLLING CO., Ltd., and GUNNING, J. R. W., 100, Holdenhurst Road, Bournemouth. June 5, 1934, No. 16719. [Class 135] Apparatus for opening and closing gas, water, &c. taps at predetermined times of the kind comprising a clockwork driven dial k on which are adjustably mounted two tappets l, l<1> respectively actuating a lever f fixed to the tap spindle g and a pivoted trip catch m which holds the lever in the closed position of the tap until tripped by its respective tappet l<1> so as to allow the lever to return quickly to the valve-open position, has the contacting parts of the lever f and the closing tappet l so shaped and related that at a predetermined time the tap is partly closed so that a reduced supply of gas or other fluid is maintained for a period, at the end of which the supply is cut off. As shown, the lever f is provided with a cam surface x for this purpose. The lever f is urged to the valve-open position by a spring and rests in that position against a stop h. A projection f<1> on the lever f displaces the catch m which is pressed upwardly by a spring m<2>. The invention is applicable to the automatic control of gas street lamps, which are thereby provided with a reduced gas supply for a period before being extinguished. According to the Provisional Specification, the invention may be employed to close water taps gradually so as to eliminate water hammer.
Patent GB-118370-A (GB)
Title: Improvements in or relating to Magnetic Locks or Fastenings for use on Electric Lamps or other Apparatus.
IPC: H01R33/97
Filed: 1917-11-14
Abstract: 118,370. Fuller Accumulator Co., and Welch, A. P. Nov. 14, 1917. Fastenings, magnetically-operated.-The bolt B of a lock for an electric safety lamp &c. is operated by the application of a magnet to the magnetic block D fixed permanently to the casing. The spring C is housed in recesses in the bolt B and block D, and the intervening space E is reduced to a minimum. The bolt is enclosed within a cover A which can be readily removed when the lamp is unlocked. The space round the bolt is filled with grease &c. inserted through the holes F.
Patent GB-895910-A (GB)
Title: Synthesis of emetine
IPC: C07D455/08
Filed: 1957-05-27
Abstract: The invention comprises compounds of the formula <FORM:0895910/IV (b)/1> (and of the corresponding mirror image) wherein X is a carboxylic acid radical or salts or functional derivatives thereof, and R and R1 are hydrogen or alkyl groups, together with processes for the synthesis of emetine and of O-methylpsychotrine by converting a compound of the above general formula into (+)-O-methylpsychotrine by condensation with homoveratrylamine, cyclisation to O-methylpsychotrine (and if necessary resolution of the latter) followed by hydrogenation to yield emetine. Specified salts are those with alkali metals, ammonia and amines, and functional derivatives include esters, amides and the nitrile.  In examples the trans isomer of the lactone of formula <FORM:0895910/IV (b)/2> is converted via the acid chloride, amide to the nitrile, and condensed with homoveratrylamine to give the amide of formula <FORM:0895910/IV (b)/3> which is cyclised and then hydrogenated to the nitrile of the above general formula (X=CN), which is hydrolysed, the corresponding acid chloride condensed with homoveratrylamine and cyclised to yield O-methylpsychotrine, which is hydrogenated to emetine and isoemetine. Again, the diketone of formula <FORM:0895910/IV (b)/4> is converted to a ketone of formula <FORM:0895910/IV (b)/5> which is condensed with diethyl malonate and the resulting diester of formula <FORM:0895910/IV (b)/6> (R= -CH(COOC2H5)2) cyclised, hydrolysed, decarboxylated, esterified and hydrogenated to give the perchlorate salt of formula <FORM:0895910/IV (b)/7> The DL-ester of formula <FORM:0895910/IV (b)/8> is hydrolysed, converted to the triethylamine salt, treated with ethyl chloroformate, condensed with homoveratrylamine, the resulting amide cyclised and then resolved to (+) O-methylpsychotrine.
Patent GB-571565-A (GB)
Title: Improvements in or relating to aircraft bombs
IPC: F42C15/295
Filed: 1943-10-13
Abstract: 571,565. Fuzes for aerial bombs. GUERMONT, M. E. Oct. 13, 1943, No. 16833. [Class 9 (i)] Relates to fuze-arming devices of the air-vane type and of the kind wherein rotation of the air-vane is prevented by a wire which is connected to the aircraft and passes through a hole in a clip on the tail structure of the bomb. A clip 6, Fig. 1, according to the invention, comprises-two like elements shaped as shown in Fig. 3 and assembled as in Fig. 2. The curved parts 8 together embrace the cylindrical end of the bomb body 1 and the respective tongues 7 are received within the gaps between the doubled-over parts 9, 10 of the other element, the beads joining which parts form holes 11 to receive the vane-locking wire 12. The parts 7, 9, 10 may be spotwelded together, and the clip may be secured to the bomb by screws 16 or a spring catch, or by spot-welding. The vanes 5 are mounted immediately in rear of the clip.
Patent GB-1075738-A (GB)
Title: Container with lid for video or sound records on tape
IPC: G03B21/32
Filed: 1966-04-18
Abstract: 1,075,738. Boxes. GRUNDIG ELEKTRO MECHANISCHE VERSUCHSANSTALT. April 18, 1966 [April 17, 1965], No. 16843/66. Heading B8P. A box for recording tape spools includes a ramp 8 down which the spool 9 rolls when the hinged lid 3 is opened. When fully opened the lid 3 is not horizontal, but occupies the position shown, the spool 9 being supported in the position III by the end wall 6 of the lid 3 and projections 5 by which the lid 3 is hinged to the body 2 of the box. Ribs 17 on the inner sides of the side walls of the box reduce the friction between the spool and the walls. Side panels 10, 11 on the lid 3 support the spool laterally when the box is open, a carry recesses 15 which engage projections 14 inside the box to secure the lid 3 in the closed position. The end wall 6 of the lid extends beyond the body of the box at (16), Fig. 1 (not shown), in the closed position, to provide a grip for opening. Holes 19, Fig. 2, allow rods to be passed through several such boxes to secure them together, Fig. 4 (not shown). The box may be formed from plastics material by injection moulding, pressing or casting, the box being formed in two symmetrical halves, each half carrying a section of the ramp 8 formed either integrally therewith, or subsequently attached thereto.
Patent GB-184639-A (GB)
Title: Improved apparatus for refining metals
IPC: C22B9/00
Filed: 1921-06-20
Abstract: 184,639. Harris, H. June 20, 1921. Dry processes of refining lead and other metals. -Apparatus for refining molten metals such as lead by passing them through a molten reagent such as caustic soda comprises a jacketed vessel i for the reagent, a pump g for raising the molten metal to the top of the vessel i and circulating it through the reagent, and a stirrer h for the reagent, these parts being mounted on a frame a capable of being lowered to a pot c of the metal so that the pump g and the bottom of the vessel i extend into the metal. The furnace gases which heat the pot c while the metal is being melted, pass as shown by the arrows, but when the pump &c. is lowered they pass through flues m to the jacket l surrounding the vessel i, dampers t, u being provided for this purpose. Specification 142,398 is referred-to.
Patent GB-662195-A (GB)
Title: Improvements relating to the formation of selvedges in shuttleless looms
IPC: D03D35/00
Filed: 1949-06-28
Abstract: 662,195. Shuttleless looms; selvedges forming. VILLA, C., MORLANI, A., and PIAZZOLLA, G. June 28, 1949, No. 17129/49. Classes 142(i) and 142(ii). A loop of weft is inserted by a weft carrier 3 and retained by a selvedge thread 5 which is passed through the weft loop. 'The selvedge thread is contained in a carrier 21 moved vertically by a carriage 24 to pass through the weft loop laid in the .plane A-A'. The carriage 24 is operated by a lever 12, a link 11, and a crank 10 on an oscillating shaft 9. The carriage 24 slides on rods 8 in a carriage guide 7 and two coaxially aligned rods 25, 26, also mounted in the carriage guide, pilot the carrier 21. The rod 26 is removable to facilitate replenishment of the selvedge thread. The carrier 21 may be passed through the weft loops in an upward or downward direction, or may be passed through the loops in an upward and downward direction alternately. On breakage of the selvedge thread, a plate 16 falls and the weft loop wraps around the carrier 21 and is cut by a knife mounted on the side of the carrier when the usual weft stop motion stops the loom. A copper wire pivoted to the carrier is threaded into the cloth for a given distance to ensure a straight edge.
Patent GB-297789-A (GB)
Title: Improvements in or relating to fluid meters
IPC: G01F3/10
Filed: 1927-06-28
Abstract: 297,789. White, A. E., (Roots Co., P. H. & F. M.). June 28, 1927. Movable - abutment type. - In a gas or other fluid meter comprising a casing 1 having a fluid passage therethrough and rotatable geared impellers 11 of the Roots' blower type, the impellers are preferably of aluminium alloy and may be mounted on roller bearings. They are rotated initially by means of a hand crank engaging a supplementary shaft which may be moved against the resistance of a spring to engage pins on one of the impeller shafts.
Patent GB-637499-A (GB)
Title: Improvements in and relating to ceramic ornament or decoration
IPC: B44C1/10
Filed: 1948-06-26
Abstract: 637,499. Decorating pottery. FLORAL CHINA CO., Ltd., and MANNING, L. D. June 26, 1948, No. 17240. Drawings to Specification. [Class 87 (i)] A net or lace decoration is produced on a pottery figure &c. by applying thereto, before firing, net fabric coated with slip which may contain gum arabic, the fabric being destroyed during firing.
Patent GB-1055339-A (GB)
Title: Improvements in or relating to electric flat iron
IPC: D06F75/26
Filed: 1964-04-28
Abstract: A thermostatically controlled, dual-voltage electric flat-iron with a handle open at the front, has the voltage-change-switch, thermostat control and indicator lamps housed in the rear part of the handle.
Patent GB-1183553-A (GB)
Title: An Improved Door Handle Assembly
IPC: E05B3/06
Filed: 1968-04-11
Abstract: 1,183,553. Roseplates. OTTO GROBSTEINBECK G.m.b.H. 11 April, 1968 [11 April, 1967], No. 17668/68. Heading A4U. [Also in Division E2] A door handle assembly includes a boxshaped roseplate 4 covering an aperture 2 in a door 3 through which passes a doorhandle shaft 1, the roseplate being secured to the door by headed screws 13 passed through apertures 16 and aligned apertures in recesses 11 in a retaining plate 9 and threadedly engaged in bores 12 in bushes 7 which are received in apertures 5 in the door. Each boss has a head 8 non-rotatably retained in a recess 11 and a longitudinally slotted shank which yields as the bush is driven into the door and expands as the screw is screwed thereinto. In a modification the recesses 11 are shaped to provide a snug fit for the head of a bush.
Patent GB-546491-A (GB)
Title: Method of pouncing hats
IPC: A42C1/08
Filed: 1940-12-14
Abstract: 546,491. Hat-pouncing machines. DORAN BROS., Inc. Dec. 14, 1940, No. 17688. Convention date, Dec. 1, 1939. Drawings to Specification. [Class 63] A hat body is pounced or finished by supporting the hat adjacent but out of contact with a rotating block, forcing a portion only of the hat against the block to effect rotation of the hat, and continuously abrading the rotating hat along a path extending from the tip to the brim edge of the hat. The operation may be carried out on the machine described in Specification 528,406. The hat body when placed on the block to be pounced, may have its brim extending outwardly away from the block. Specifications 380,786, 462,413 and 484,344 also are referred to.
Patent GB-1036774-A (GB)
Title: Improvements in and relating to lifting mechanisms for tractor-drawn earth-working implements
IPC: A01B63/111
Filed: 1963-05-06
Abstract: 1,036,774. Tractor power lift mechanisms. ROBERT BOSCH G.m.b.H. May 6, 1963 [May 5, 1962], No. 17754/63. Heading A1P. A tractor power lift mechanism is adapted to operate under either position or draft control depending on the position of lever 39 which moves a cam plate 28 about a pivot 27 secured to a cam surface 25 formed on the rock shaft 12. For position control as shown in Fig. 1 the cam plate 28 is held in a downward position by a slot 31 co-operating with a pin 32 on a bell crank 33 operated by lever 39. In this case a three-armed lever 44 having a coupling link 46 to a hydraulic control valve 48 has a roller 45 riding on the cam plate and is pivoted at 43 to a two armed lever 41 pivoted to the housing at 40 and having a roller 42 also riding on the cam plate. The third arm of the three-armed lever makes a pin and slot connection 52, 53 with a sensing linkage for draft control conected through a leaf spring 21 with the upper link of the lifting linkage. The sensing linkage does not affect the mechanism under position control since the pin 52 slides in the slot 53. If the lever 50 is operated to move the slide valve 48 to alter the position of the implement, the roller 42 rides on the part 26 of the cam surface 25 as the rock shaft rotates and thus moves lever 44 to return the slide valve to the neutral position. If an obstruction is met by the implement the sensing linkage will then be moved sufficiently to operate the lever 44 and thus the control valve in order to raise the implement to clear the obstruction. For draft control (Fig. 2, not shown), lever 39 is moved to raise the cam plate 28 about the pivot 27 which thus cloaks the cam surface 25 so that the roller 42 is not cammed. The pin 52 of the three-armed lever 44 engages the end of the slot 53 so that the draft sensing linkage operates the lever 44 and thus the control valve 48. In an embodiment two cam plates surrounding the rock shaft which has a lug for internal co-operation with the plates are pivoted directly to an operating rod of the control valve and are displaced relative to one another to provide for position or draft control.
Patent GB-1131406-A (GB)
Title: Epithermal neutron well logging
Inventor: HALL HUGH EDWARD
IPC: G01T3/00
Filed: 1966-04-22
Abstract: 1,131,406. Neutron well logging. TEXACO DEVELOPMENT CORP. April 22, 1966, No. 17836/66. Heading G1A. [Also in Division G6] An epithermal neutron detector comprises a thermal neutron detector surrounded by a front layer of neutron thermalizing material which is enclosed within a second layer of thermal neutron absorbing material. The thermal neutron detector may be either a proportional counter or a photomultiplier tube associated with a scintillator material. In a bore-hole logging arrangement the epithermal detector is associated with a fast neutron source from which it is isolated by radiation shielding. In operation, the epithermal neutrons pass through the second layer of thermal neutron absorber, as thermalized in the first layer and pass through into the detector. The second layer may be gadolinium or dysprosium and the first layer, paraffin wax, plastics, oil or water. The proportional counter contains boron trifluoride and the scintillator material, europium activated lithium iodide, lithium fluoride or bromide, or lithium activated plastics or liquid. Separation of radiation signals is effected by a discriminator circuit.
Patent GB-729695-A (GB)
Title: Improvements in or relating to electric cables and their manufacture
Inventor: CONNING JAMES
IPC: H01B13/00
Filed: 1953-06-26
Abstract: 729,695. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. June 25, 1954 [June 26, 1953], No. 17850/53. Class 36. [Also in Group XXII] A cable having one or more insulated cores 1 is enclosed in a hard metal sheath 4 which is provided on -its outer surface with spaced dimples 5a whose maximum peripheral dimension do not exceed #D/6, where D is the external diameter of the sheath, and with corresponding projections 6a on 'its inner surface. The dimples may be arranged in rows extending longitudinally of the cable and uniformly spaced from each other around the circumference of the sheath, the dimples in adjacent rows being staggered. The circumferential spacing between the rows may be from #D/6 to #D/10 and the spacing between adjacent dimples in a row may be about D/2. The aggregate area of the dimples per unit length of the sheath may be between one half and one fifth of the total surface area. The dimples may be circular, elliptical or generally oblong. A machine for producing the dimples in the sheath is also described (see Group XXII).
Patent GB-676882-A (GB)
Title: Improvements in alkaline earth metal soap greases
Filed: 1949-07-06
Abstract: A lubricating grease comprises a lubricating oil, from 5-30 per cent by weight of an alkaline earth metal soap of a mono-or di-hydroxy substantially saturated fatty acid containing from 12 to 24 carbon atoms, and up to 10 per cent by weight of an alkaline earth metal salt of an acid having a molecular weight below 160. Low molecular weight acids specified are acetic, propionic and boric acids, and hydroxy-acids mentioned are hydroxy stearic, such as the 9-10 dihydroxy and 12-monohydroxy acids, and mono- or di-hydroxy lauric, myristic, palmitic and behenic acids.  The lubricating oil is preferably a mineral oil but synthetic oils such as the esters of dibasic acids and the polyglycols may be used.  Plasticizing agents such as a non-paraffinic wax, for example carnauba or candelilla wax, corrosion inhibitors such as phenyl alpha naphthylamine, and other conventional ingredients may also be added to the composition.
Patent GB-904745-A (GB)
Title: Power plant apparatus
IPC: F01K23/16
Filed: 1961-05-17
Abstract: 904,745. Gas-turbine plant. WESTING- HOUSE ELECTRIC CORPORATION. May 17, 1961 [June 15, 1960], No. 17989/61. Class 110 (3). A gas-turbine power plant of the continuous combustion type comprises at least one power assembly, the or each assembly comprising a pair of gas turbine units and comprising a compressor, combustion chamber and turbine driving the compressor, the pair of gas turbine units driving a further compressor, the further compressor of the or each power assembly supplying air to a combustion chamber which supplies gases to a useful power turbine. The plant shown in Fig. 1 comprises two power assemblies 10, 11 and a main gas turbine 13 which drives an electrical generator. The power assembly 11 comprises a pair of gas turbine units, each of which comprises a compressor 17 supplying air to combustion equipment 26, gases from which pass to the turbine 16. A further compressor 29 is disposed between and is driven by the pair of gas turbine units. Air from the further compressor 29 is delivered to combustion equipment 38 and the gases generated therein pass to the centrallydisposed inlet of the useful power turbine 13. The second power assembly 10 is identical with the assembly 11, gases from the combustion chamber 38 of the assembly 10 also passing to the inlet of the useful power turbine 13. The turbine 13 is of the double-flow type, gases discharging therefrom to the outlets 33, 34 at the two ends. Valves 40 are provided to isolate the compressors 29 if either power assembly is not in use. A second embodiment is described in which only one power assembly is provided, the useful power-turbine in this case not being of the double-flow type.
Patent GB-165335-A (GB)
Title: Improvements in and connected with cigarette and cigar holders
IPC: A24F13/08
Filed: 1920-07-02
Abstract: 165,335. McKellar, A. July 2, 1920. Cigar and cigarette holders. - The cigar or cigarette is retained within the holder A by a curved pin C which passes through a hole in the holder and is carried by an arm B pivoted to the stem.
Patent GB-240955-A (GB)
Title: Improvements in the synthetic manufacture of methanol and higher alcohols
IPC: C07C29/151
Filed: 1924-07-29
Abstract: The synthesis of methanol by the catalytic hydrogenation of carbon monoxide under pressure is effected in the absence of iron, that is to say, the catalytic materials must be free from iron, the inner walls of the reaction chamber must not consist of iron and the reaction gases must be freed from iron particles or volatile iron compounds such as iron carbonyl.  The reaction conditions may be varied by the use of temperatures of 250-600 DEG  C. and of pressures from 50 atmospheres upwards, the resulting methanol being either pure or mixed with higher alcohols. Examples are given of the use of a mixture of chromium oxide and manganese oxide in a copper-lined tube and of a mixture of chromium oxide and zinc oxide in an aluminium-lined reaction vessel, the gases being circulated through the reaction chamber and condenser.  Other contact substances mentioned are a mixture of copper oxide and chromium oxide, or of the oxides of cadmium and vanadium; metal alloys such as chromium-manganese and copper-zinc; masses containing oxides non-reducible under the conditions of working, e.g. uranium and aluminium; and mixtures of such metals as copper, silver, lead and zinc with a metal oxide or salt acting as a promoter.  When contact masses containing a difficultly-reducible metal oxide with a little potassium carbonate are employed, and preferably with a higher percentage of carbon monoxide and a reduced velocity of the gas current, higher alcohols such as propyl, butyl and amyl alcohols are formed in addition to methanol.  In every case, nickel and cobalt must be excluded from the catalytic materials.  Specifications 1325/13, [Class 8 (ii), Air and gases, Treating &c.], 20488/13, 227,147, 228,959, 229,714, 229,715, 231,285, 237,030 and 238,319, are referred to.