baber/WOPTO huggingface dataset:
Patent GB-1531151-A (GB)
Title: Wear resistant alloy
IPC: C22C29/06
Filed: 1976-05-14
Abstract: 1531151 Wear resistant alloy SANDVIK AB 14 May 1976 [16 May 1975] 20082/76 Heading C7A A sintered wear resistant alloy contains 30-70% by volume of hard particles in a binder. The hard particles are compounds of:- Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and/or W with C, B and/or N with 0-20% of the C, N and/or B being substituted by O. The matrix is based on Fe, Co and/or Ni, and may contain up to 10 at % Al, 15 at % Mn, 4 at % Si and 1 at % Cu with normal impurities. The alloy is characterized by the hard particles having a grain size (M) = 0À01-1À0 Ám with a maximum of 15% being greater than 1À2 Ám, and a size distribution represented by the standard deviation S wherein Further, the atomic ratio is 0À25-0À70 and the ratic The alloy may be made by standard powder metallurgical techniques by milling the constituents in a liquid until the mean grain size is within the required range. After drying the material may be pressed and sintered by the normal techniques i.e. melt phase sintering, pressure sintering, isostatic heat pressing or forging or by spark sintering. The resultant material has good wear resistance, low sensitivity to chip-welding, good thermal fatigue resistance and has the capacity to self sharpen in use, particularly when used as a cutting, shearing or forming tool.
Patent GB-756896-A (GB)
Title: Polyene dialdehydes and process for the manufacture thereof
Filed: 1954-07-09
Abstract: The invention comprises 4,9-dimethyldodecatetraene - (2, 4, 8, 10) - ine - (6) - diol - (1, 12) and 4,9 - dimethyl - dodecapentaene - (2,4,6,8,10) - diol-(1,12).  The novel compounds are prepared by acetalizing 2,7-dimethyloctadien-(2,6)-ine-(4) - diol - (1,8) or 2,7 - dimethyloctatriene-(2,4,6)-diol-(1,8), for example by reaction with an ortho-ester, such as methyl, ethyl or butyl orthoformate, in the presence of an acid agent, e.g. p-toluene-sulphonic acid, phosphoric acid, boron trifluoride etherate, zinc chloride, ammonium chloride or ammonium nitrate, condensing the resulting diacetal with 2 molecular proportions of a vinyl ether in the presence of a condensing agent, such as boron trifluoride etherate, aluminium chloride, ferric chloride or tin tetrachloride, preferably at a temperature between 25 DEG  and 60 DEG  C., and treating the product with an acid to hydrolyse the acetal groups and eliminate alcohol.  The hydrolysis may be effected using, for example, p-toluenesulphonic acid, acetic, propionic, oxalic, sulphuric or phosphoric acid, zinc chloride or sodium hydrogen sulphate.  It is advantageous to exclude oxygen during hydrolysis and to remove the alcohol continuously.  A water-miscible solvent, such as dioxane, tetrahydrofurane or ethylene glycol dimethyl ether, may be added to the hydrolysis mixture.  Any triple bond in the product may be reduced to a double bond by treating with one mole. of hydrogen in the presence of a palladium-lead catalyst.  In an example, 2,7-dimethyl-octadien-(2,6)ine-(4)-dial-(1,8) is reacted with ethylorthoformate in the presence of ammonium nitrate, the resulting acetal is condensed with ethyl-vinyl-ether with the aid of boron trifluoride etherate, and the product is dissolved in dioxane and hydrolysed by boiling with phosphoric acid under an atmosphere of nitrogen; the reaction mixture is poured in water to separate 4,9-dimethyldodecatetraen - (2,4,8,10) - ine - (6) - dial - (1,12). The novel compounds may be condensed with 2 mols. of a -bromopropionic acid ester with subsequent elimination of water and hydrolysis to give dehydrocrocetin or crocetin.  The novel compounds may be acetalized followed by condensation of the resulting acetals with propenyl ether and treatment with acid to give dehydrocrocetin dialdehyde and crocetin dialdehyde.  The latter are treated with bromo-acetic ester and water is eliminated to produce dehydrobixin ester and bixin ester.  Alternatively, they may be acetalized, condensed with vinyl ether and treated with acid to convert them to dehydro-bixin dialdehyde and bixin dialdehyde.  These compounds may be condensed with 2-methyl-6-bromoheptene-(2) to give, after eliminating water, dehydrolycopene and lycopene.  The initial 2,7-dimethyloctadien-(2,6)-ine-(4)-dial-(1,8) may be obtained as described in Specification 744,890 and may be hydrogenated to the corresponding triene compound in the presence of a palladium/lead catalyst.
Patent GB-148229-A (GB)
Title: Driving system for alternating current meters on the ferraris principle
IPC: G01R11/36
Filed: 1920-07-09
Abstract: 148,229. Adert (formerly. Adamczak), L. Jan. 14, 1919, [Convention date]. Induction motor meters.-An induction meter having a three-arm voltage core in one plane, the outer arm embracing the armature disk, so that two voltage fields are produced in the plane of the axis of the disk, is provided with two U-shaped series magnets d on the opposite side of the disk, one on each side of the shunt magnet. Specifications 151,245 is referred to.
Patent GB-1220987-A (GB)
Title: Sealed joints in storage batteries
Inventor: HOLLIS KENNETH LESLIE
IPC: H01M50/172
Filed: 1968-04-29
Abstract: 1,220,987. Sealed joints. ALKALINE BATTERIES Ltd. 28 April, 1969 [29 April, 1968], No. 20225/68. Heading HlB. A joint between a battery case or lid, 10 or 30 and a post, 15 or 34, passing through a hole in it is formed by placing liquid or paste sealing material in an annular space 48 surrounding the post and enclosing it with rigid members. In the embodiment shown in Fig. 1 the case is of plastics material, 20 is a steel washer and washer 18 is coloured to indicate the polarity of the post. In the embodiment shown in Fig. 2 the case is of steel, washers 36 and 43 are of steel and washers 38 and 41 are of insulating material. The paste may comprise a polyurethane precursor together with a compound which produces gas either by thermal decomposition or by reaction with the polyurethane precursor so that after the material has been put in place it expands to fill the space. Alternatively the space may be overfilled with epoxyresin so that when the nut is tightened the excess resin is squeezed out.
Patent GB-929490-A (GB)
Title: Method and apparatus for hopping wort
Inventor: LEARNER SYDNEY EDWARD
IPC: C12C7/20
Filed: 1959-06-12
Abstract: 929,490. Continuously hopping wort. BREWING PATENTS Ltd. March 14, 1960 [June 12, 1959], No. 20261/59. Class 14 (2). In hopping wort, a moving bed of hops 2 is percolated with hot wort so as to extract bittering substances from the hops and filter off solid material from the wort. The hot wort is preferably moved in counter-current direction to the bed of hops, thereby passing through a series of wort boilers 5, as indicated by arrows; thus the first application of the hot wort to the bed of hops is a filtering operation effected at a position at which the bed of hops is substantially completely spent of bittering substances and the sludge formed by the boiling wort is completely filtered off from the wort before it comes into contact with unspent hops. 18 and 19 are hot and cold water spargers, respectively. Specification 852,561 is referred to.
Patent GB-1127678-A (GB)
Title: Improvements in or relating to varactor diode devices
Inventor: NEALE NOEL WILLIAM THOMAS
IPC: H01P5/04
Filed: 1966-05-07
Abstract: 1,127,678. Semi-conductor devices; variable capacitors; waveguide switches. MARCONI CO. Ltd. 1 Feb., 1967 [7 May, 1966], No. 20305/66. Headings H1K, H1M and H1W. The housing of a varactor diode includes two metal members, the separation between which can be varied to adjust the capacitance in parallel with the diode. The diode is designed to operate as a waveguide switch, and in such use the variable shunt capacitance is set to the value appropriate to provide an acceptable voltage standing wave ratio performance, this variable capacitance replacing the external matching impedance customarily used for this pupose. The diode 6 is mounted on one of the metal members 1 which constitutes the base of an enclosed housing, and the other metal member 5 is a rod which is axially movable to vary its distance from the housing base. The rod may be a sliding fit, or a screw threaded fit, in the housing cover 2. Electrical connection to the upper electrode of the diode is by way of a gauze 8 connected to the housing cover 2. The terminals of the device are the base and cover of the housing, which are separated by the ceramic housing wall 7.
Patent GB-1037703-A (GB)
Title: Improvements in sensing devices
IPC: B65G53/66
Filed: 1964-05-15
Abstract: 1,037,703. Indicating apparatus. R. F. WORLIDGE. May 17, 1965 [May 15, 1964], No. 20330/64. Heading B8A. A means for sensing any incorrect positioning of articles being conveyed comprises a sensing device including a fluid pressure release valve and a probe member operatively connected to the valve member to produce a change in pressure when said probe is engaged by an incorrectly placed article and a device responsive to the change in pressure to initiate a warning signal or perform a function to restore the article to its proper position. The valve comprises the probe secured to a square or circular valve plate which is spring loaded on to a seat in the valve casing. Pressure is released from the valve by the probe being moved axially into the valve or by it being tilted by side engagement with the article. A plurality of these valves may be connected to a common fluid pressure supply and warning system. The system may be of the vacuum instead of pressure type.
Patent GB-1015056-A (GB)
Title: Recirculating holding and melting furnace for molten metals
Inventor: HIGGS ARTHUR
IPC: F27D99/00
Filed: 1962-05-28
Abstract: 1,015,056. Melting pot furnaces. SCOTTISH GAS BOARD. Aug. 28, 1963 [May 26, 1962], No. 20346/62. Heading F4B. [Also in Division H5] A melting and holding furnace comprises a main upper holding chamber 12 housing one or more immersion heating tubes 14 in a side recess 13, a U-shaped conduit 16 below the pot, the limbs of said conduit communicating with the pot at their upper ends and the baseconnecting portion 116 of said conduit being of converging cross-section, and at least one further immersion tube 17 associated with and in the vicinity of said U-shaped conduit. Both upper and lower immersion tubes may be heated by burning throughput gas, such as town gas, natural gas, propane or butane, or by electrical resistance elements housed therein. Tubes 14 are temperature-controlled to maintain the molten metal in the pot at the required working temperature.
Patent GB-614124-A (GB)
Title: Improvements relating to self-propelled cranes
IPC: B66C23/36
Filed: 1946-07-08
Abstract: 614,124. Portable jib cranes; load handling machines. LE TOURNEAU, Inc., R. G. July 8, 1946, No. 20362. Convention date, Dec. 22, 1945.. [Classes 78 (iii) and 78 (iv)] In a self-propelled crane a body section is connected at its rear end to a wheeled truck and at the front end to a tractor through a power steering unit which can be operated to turn the tractor from a forwardly facing position with respect to the body section to a rearwardly facing position, the crane being supported by the wheeled truck, or the body section, or both. The body section 7, Fig. 1, comprises a pair of inclined and upwardly converging legs 8 which are connected to the truck at their lower ends and fixed at their upper ends to a rigid forwardly projecting top beam 9. The front end of this beam is connected through an upstanding member 14 and power steering unit 13 to the tractor 1 which latter when turned into a rearwardly facing position can pass beneath the front portion of the body section as shown in broken lines. A mast 16 pivotally mounted about a transverse axis 18 on the body section has a reversible electric motor 19 pivotally mounted about a transverse axis 21 adjacent to the upper end of the mast, and a long screw 23 operatively connected to the motor 19 and engaging in a nut 24 which ispivotally connected to the body section intermediate the ends of the latter so that rotation of the motor 19 in either direction can swing the mast 16 forwardly and backwardly about its pivot 18. A boom 28, Figs. 1 and 2, from which depends a lifting cable 37 connected to a reversible motor driven winch 36, projects from an elevator carriage 27 slidably mounted within the mast, said carriage being raised or lowered by means of a reversible electric motor 29 operatively connected to a long screw 31 which engages a nut 34 connected to the elevator carriage. In a modification, Fig. 4, a reversible motor-driven winch 44 has a cable drum 46 and a pulley block and tackle system 47 connected between the mast and elevator carriage. Motors 19, 29 and 44 are all fitted with brakes which are released when the motors are connected to a generator driven by the tractor engine, and to provide a flexible connection between the tractor and the body section a slip-ring assembly is included under cap 40.
Patent GB-390381-A (GB)
Title: A wool skein carrier or holder
IPC: B65H49/18
Filed: 1932-07-19
Abstract: 390,381. Skein-holders. REYNOLDS, G. H. N., 69, Albert Road, Romford, Essex. July 19, 1932, No. 20398. [Class 120 (ii).] A skein-holder comprises an extensible frame having two relatively slidable parts A, A<1> each carrying a flanged roller C, C<1>, and a third roller C<2> mounted at the centre of and at a higher level than the other two. The frame members A, A<1> are slotted and provided with clamping nuts B for purposes of adjustment. The rollers are freely mounted, and are preferably eccentrically pivoted, so that the skein is slackened and loosened during unwinding.
Patent GB-987021-A (GB)
Title: Method for continuously transferring ion exchange resin
IPC: B01D15/04
Filed: 1961-06-06
Abstract: <PICT:0987021/C1/1> An ion exchange treatment of ammoniacal copper sulphate comprises pumping liquid under pressure into treatment vessel 1 via inlet 5. The treated liquid leaves through outlet 6 and the pressure of the liquid displaces spent resin from the bottom of the vessel via outlet 8 to regeneration vessel hopper 19.  At a prearranged time a magnetic cycle timer (not shown) stops the flow of liquid into the vessel and opens outlet 7 for liquid to flow out of vessel 1, valve 17 to open because of difference in pressure and fresh resin to flow in from hopper 12.  Similar actions take place in regeneration vessel 2 and washing vessel 1 from whence fresh resin is returned to hopper 12.  The regenerating liquid for recovery of the copper is 5% ammonium sulphate solution.
Patent GB-195924-A (GB)
Title: Artificial tooth
IPC: A61C13/00
Filed: 1922-07-26
Abstract: 195,924. Platschick, B. April 7, 1922, [Convention date]. Teeth, artificial. - In a tooth having a metal ring 1 inserted before backing, the rear face 4 is ground to fit the plate 5 before the fixing pin 2 is soldered to the ring. The pin is of platinum or an alloy of precious metals, and the solder may be pure gold.
Patent GB-613808-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H5/10
Filed: 1944-10-23
Abstract: 613,808. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., and BOURN, L. E. A. Oct. 23, 1944, No. 20506. [Class 88(ii)] An electrical instrument of the organ type has a plurality of generators which produce complex tones and which may be made to produce either a complete series of harmonics or only odd harmonics. The instrument is of the electrostatic type and comprises twelve stationary discs, Fig. 2 (not shown), each bearing seven annular waveform electrodes progressively doubling in frequency outwards. The waves are of saw-tooth form. This disc is scanned by a rotating disc carrying two grids displaced from each other 180 degrees of the fundamental waveform. The basic circuit of each generator, as shown in Fig. 3, has each stationary disc 1 connected to the grid of an amplifying valve 7 and the two scanning grids 2, 3 connected to tapping points 4, 5 on a source of potential 6, the centre point of which is connected to the cathode. As the grids move over the stationary electrode, the variation in capacity varies the potential on the valve grid and the amplified output passes to the terminals 8. If one tapping point 4, 5 is coincident with the point 9, the corresponding scanning grid is ineffective and a simple sawtooth waveform with all its harmonics is produced. When the tapping points are equally spaced on opposite sides of the centre, the superimposed oppositely polarized waveforms produce a waveform having odd harmonics only. By varying the tapping points 4, 5, a wide range of harmonic combinations may be obtained. In the circuit arrangement for the complete instrument, there is one amplifying valve for each note and these are normally biassed to cut-off, but depression of a key neutralizes this bias by an opposing voltage. Adjacent valves are grouped in fours, each group feeding into an adjustable filter which is employed to modify the intensity of upper harmonics to produce variation in tone. Specifications 403,444, 433,050 and 613,414 are referred to.
Patent GB-799948-A (GB)
Title: Uranium alkoxides and their preparation
IPC: C07F7/00
Filed: 1956-01-02
Abstract: The invention relates to uranium alkoxides of the formula V(OR)x where R is a methyl, ethyl, propyl or butyl radical and x is 4, 5 or 6.  Uranium tetra-alkoxides are prepared by adding a uranium tetrahalide solution to an alcoholic alkali metal alkoxide solution. The uranium tetra-alkoxide need not be isolated but may be converted to the penta-alkoxide by oxidation in the presence of the corresponding alcohol.  The oxidation may be effected by elementary oxygen or by a peroxide, preferably one derived from an organic carboxylic acid, such as benzoyl or acetyl peroxide.  Alternatively, the tetra-alkoxide suspension may be treated with bromine, followed by the corresponding alkalimetal alkoxide.  The uranium hexa-alkoxide is prepared via an intermediate addition compound formed by reacting uranium pentaalkoxide with an alcoholic alkali metal alkoxide solution. The addition compound is not isolated but is oxidized to uranium hexa-alkoxide with oxygen or a peroxide, preferably one derived from a carboxylic acid, e.g. acetyl or benzoyl peroxide.  The reactions are carried out under anhydrous conditions usually in an inert atmosphere.  In examples: (1) a uranium tetraethoxide solution is prepared by adding uranium tetrachloride to an ethanolic solution of sodium ethoxide in a dry nitrogen or dry air atmosphere and oxidized with dry oxygen to uranium pentaethoxide; the n-propyl, n-butyl and tertiary butyl derivatives are said to be similarly preparable; (2) uranium pentaethoxide is added to an ethanolic sodium ethoxide solution under nitrogen, followed by benzoyl peroxide to give uranium hexaethoxide; the n-propyl, n-butyl, isobutyl, isopropyl and tertiary butyl derivatives are said to be similarly preparable; (3) uranium penta-n-propoxide is prepared by adding a solution of bromine in dry benzene to a suspension of uranium tetra-n-propoxide (prepared as in (1)), followed by more propanol; uranium penta-n-propoxide and uranium isobutoxide are prepared by the exchange reaction between uranium pentaethoxide and the appropriate alcohol; uranium penta-n-butoxide is also described.  The Specification as open to inspection under Sect. 91 of the Patents and Designs Acts 1907 to 1942 refers also to alkoxides derived from other alcohols, e.g. allyl, methallyl, amyl, hexyl and lauryl alcohols.
Patent GB-758723-A (GB)
Title: Improvements relating to apparatus for the teaching of mathematics
Inventor: BASS WALTER ALFRED GORDON
IPC: G09B19/02
Filed: 1953-07-24
Abstract: 758,723. Educational appliances. COUNTERPLAY Ltd. July 22, 1954 [July 24. 1953], No. 20560/53. Class 146(2) Apparatus for teaching arithmetic comprises a baseboard marked or formed into a series of cells k and having horizontal and vertical scales j, h along its bottom and left-hand edges, the scales being marked with numbers associated with the vertical and horizontal rows of the cells k; and a series of counters d each of a size to fit within a cell are provided and marked in sets with 1, 2, 3......, 2, 4, 6......, 3, 6, 9...... &c. so that multiplication and division may be taught in accordance with the concept of counting. The scales which may be marked with any series of numbers, fractions or alphabetical groups, are slidably mounted in grooves i, g and corresponding groups of counters d are housed in a drawer b attached to the baseboard. The cells k are formed by wire staples l, pinheads, or indentations, and the top and right-hand edges of the board left irregular to indicate that the cells may extend further. Specification 713,731 is referred to.
Patent GB-276821-A (GB)
Title: Improvements in anti-static arrangements in wireless receiving apparatus
IPC: H04B1/18
Filed: 1926-08-21
Abstract: 276,821. Beattie, A. E. Aug. 21, 1926. Atmospherics, eliminating cr limiting. - An iron-cored transformer, the primary winding c being shunted by a variable condenser d, is inserted in the aerial. The secondary winding f, having a high step-up ratio, may either by closed conductively or be shunted by a fixed condenser g, and is stated to reduce the audibility of atmospheric disturbances. The trap may be inserted in one of the leads of a frame aerial. A discharge gap may be connected to earth across the transformer as a safeguard against heavy static.
Patent GB-1336525-A (GB)
Title: Proportional force amplifier
IPC: F15B9/10
Filed: 1972-05-03
Abstract: 1336525 Fluid-pressure servomotor systems APPLIED POWER INDUSTRIES Inc 3 May 1972 [8 Nov 1971] 20670/72 Heading G3P A force amplifier has a control valve 16 connected to an actuator 114 by a resilient coupling 110 and accommodated in an axial bore 15 of a piston 58 to inter-connect a control chamber 20 with either a pressure chamber 18 or a reservoir chamber 22 to cause the piston to follow the valve. The area of the piston in the control chamber is twice that in the pressure chamber and fluid-flow permitted by "under-lap" of the control valve when the amplifier is in equilbrium causes the pressure in the chamber 20 to be half that in chamber 18. A bore 15 in the piston rod 26 is connected to the chamber 18 at 66 and vented through a passage 118. Leakage past a land 88 on the control valve is returned to the reservoir chamber through passages 100 and 102 so that an O-ring 94 is protected from extrusion. A flange 120 on the actuator co-operates with surfaces 122, 125 to permit direct manual operation in the event of hydraulic failure.
Patent GB-139544-A (GB)
Title: Improvements in or relating to rotary elastic fluid engines
IPC: F01C1/344
Filed: 1919-06-16
Abstract: 139,544. Hay, P. June 16, 1919. Fixed - abutment type; cooling parts; packing vanes; working-fluid supply.-Relates to rotary engines in which a series of rotors, or a composite rotor carrying a plurality of radially sliding vanes in axial adjacency, operate in a stator with separate annular working chambers. Each rotor a, Figs. 1 and 2, carries vanes e sliding within pockets a<1>, a series of vanes being mounted on a vane-carrying bar j by a dovetailed sliding connexion e<1> and spring device e<2>, Fig. 3 The vanes e are of semicircular configuration. Cams g<1>, g<2> on the ends of the fixed casing cause the vanes to be retracted to clear abutments d. Five vanes co-operate with six abutments so that the explosions are not simultaneous and an even torque is obtained. Compressors j, comprising pistons j<1> operated from a cam k, induce a charge through an inlet valve j' and compress it through a cam-operated valve b<2> and a non-return valve h' into combustion spaces along an axial passage h<4> which connects the combustion spaces c'. The charge is then fired by sparking-plugs m, Fig. 2, and exhaust takes place at i. In a modification, the compressor may be of similar construction to the engine. The rotors may be packed on the working faces by fluidpresses oars. The cams g<1>, g<2> may be replaced by springs.