baber/WOPTO huggingface dataset:
Patent GB-341503-A (GB)
Title: An improved pole, pillar or slab
IPC: E04H12/02
Filed: 1929-10-10
Abstract: 341,503. Pillars and building slabs. THOMPSON, F. W., 37, Dale View Road, Sneinton Hill, Nottingham. Oct. 10, 1929, No. 30703. [Classes 20 (i), 20 (iv) and 87 (i).] A pillar or building slab is formed from the spoilt paper centres of newsreels which are tarred inside and out, coated with grit, bound with wire, and filled in with concrete. Several newsreel centres may be combined to form the centre of a pillar.
Patent GB-337563-A (GB)
Title: Manufacture of reduction products of nitro-compounds
IPC: C09B27/00
Filed: 1929-10-10
Abstract: 337,563. Groves, W. W., (I. G. Farbenindustrie Akt.-Ges.). Oct. 10, 1929. Azo- and azoxy-compounds are made by reduction in alkaline solution of compounds or the general formula : (wherein the aryl radicles may be the same or different and may contain further substituents, an o- or p-position in relation to the hydroxy group being free and the nitro-group being in m- or p-position to the carbonyl group). Reducing agents specified are glucose, zinc dust and sodium sulphide. The products exhibit great affinity to the vegetable fibre and combine with diazo compounds. In examples (1) m-aminophenol is condensed with m-nitrobenzoic acid in presence of phosphorus trichloride and toluene and the resulting m<1>-nitrobenzoyl-m-aminophenol reduced to the azoxy body with alkaline glucose, (2) p<1>- nitrobenzoyl-m-aminophenol obtained similarly from m-aminophenol and p-nitrobenzoic acid in o-dichlorobenzene is reduced with alcoholic sodium hydrosulphite, (3) m<1>-nitrobenzoyl-paminophenol (from p-minophenol and m-nitrobenzoic in dimethylaniline and phosphorus trichloride) is reduced with alkaline glucose, (4) 6- (4<1>-methoxy-3<1>-nitrobenzoylamino) - 3-hydroxy-1- methylbenzene (from 2-nitroanisole 4-carboxylic acid and 1-methyl-3-hydroxy-6-aminobenzene as in (1) ) is reduced with caustic soda and arsenious acid; 4 - (4<1> - methoxy - 31 - nitrobenzoylamino)-2- hydroxy-1-methylbenzene and 5-(4<1>-methoxy-3<1>- nitrobenzoylamino) - 2 - hydroxy-1-methylbenzene are similarly reduced, (5) 2-(4'-nitrobenzoylamino)-1-methyl-4-hydroxybenzene (from p-nitrobenzoic acid and 1-methyl-2-amino-4-hydroxybenzene as in (2) ) is reduced with alkaline glucose. Nitroarylacidylaminophenols of the above formula are obtained by condensing m- or pnitrobenzoic acid or their halogen, alkyl- or alkyloxy-derivatives with an aminophenol, or a substitution product thereof, which has a free o- or p-position in relation to the hydroxy group.
Patent GB-878417-A (GB)
Title: Borazole compounds and method of preparing same
IPC: C07F5/02
Filed: 1958-09-26
Abstract: Resinous compositions are made by reacting a borazole of the formula: <FORM:0878417/IV (a)/1> where R represents a carbocyclic radical, with an active carbonyl-containing compound, e.g. an aldehyde or a compound engendering an aldehyde, such as formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, valeraldehyde, acrolein, methacrolein, furfural, crotonaldehyde, heptaldehyde, octaldehyde, benzaldehyde, aldol, glycollic aldehyde, glyceraldehyde, paraformaldehyde, trioxane, hexamethylenetetramine, dimethylol urea, trimethylol melamine, or mixtures thereof.  In Example (5) N-triphenyl-b -triamino-borazole, aqueous formaldehyde, aqueous ammonia and sodium hydroxide are heated under reflux yielding a resinous syrup which is curable by heating with phthalic anhydride, sulphamic acid, maleic anhydride, maleic acid or melamine phosphate. Maleic anhydride is added to the syrup, and the mixture is heated for a few minutes, and mixed with a -cellulose flock and zinc stearate and the wet moulding compound is dried at 60 DEG C. then moulded for 10 minutes at 180 DEG C. under a pressure of 5,000 p.p.s.i.  In other examples, N-triphenyl-b -triaminoborazole is reacted with (6 and 7) paraformaldehyde in the presence of Na and ethanol or of triethanolamine and water, and also with (8) dimethylol melamine, glass fibres being added in the latter case to form a moulding compound.  The borazoles of the above formula are also useful as latent-curing catalysts for epoxy resins.ALSO:The invention comprises N-tricarbocyclyl-B - triaminoborazoles represented by the formula <FORM:0878417/IV (b)/1> where R represents a carbocyclic radical. The novel compounds may be prepared by contacting at ambient or sub-ambient temperature an N-tricarbocyclyl - B - trihalogenoborazole with anhydrous ammonia in an amount corresponding to at least 3 moles thereof per mole of the borazole, and isolating the desired compound from the reaction mass.  It is preferred to use liquid ammonia at temperatures below 0 DEG C.  The product may be isolated by removing excess ammonia by evaporation, refluxing the solid residue with an anhydrous, inert, organic, liquid medium, separating solid ammonium halide by filtration and cooling the hot filtrate to deposit crystals of the product.  Many suitable carbocyclyl radicals are specified and examples describe the phenyl, tolyl, and cyclohexyl compounds.ALSO:Borazoles of the formula <FORM:0878417/III/1> where R is a carboxylic radical, are useful as petroleum additives which are hydrolytically stable, e.g. as viscosity index improvers, in lubricants and greases for high-temperature applications, as cetane improvers, ignition promoters, anti-knock agents and preventives of pre-ignition in fuels, and as rocket fuels or additives thereto.
Patent GB-422728-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J29/82
Filed: 1933-11-06
Abstract: 422,728. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JESTY, L. C., c/o General Electric Co., Wembley, Middlesex. Nov. 6, 1933, No. 30800. [Class 39 (i)] Cathode - ray tubes for television &c. have a layer 9 of metal such as magnesium evaporated from a metal body 8 on to the envelope 10 near the fluorescent screen 4 to form a conducting coating connected to an electrode and to act as a getter, a shielding disc preventing deposition of the metal on the screen 4. The body 8 and disc 1 are moved within the envelope, after the evaporation process, out of the path of the cathode rays. The disc 1 is carried by an arm 2, connected by a spring 5 to the anode 3, and is held central by a filament 6 joined to a member 7 carried by an electrode. After the magnesium has been evaporated by eddy current heating, current is passed through the filament 6 to fuse it, and the arm 2 springs to the left and connects the metal layer 9 to the anode 3.
Patent GB-485838-A (GB)
Title: Improvements in the production of liquefied chlorine by compression of chlorine gas and in apparatus therefor
IPC: C01B7/00
Filed: 1937-11-10
Abstract: 485,838. Compressing and liquefying chlorine. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Nov. 10, 1937, No. 30868. [Classes 8 (i) and 8 (ii)] Chlorine is compressed in a stage compressor C and liquefied by water cooling and in re-evaporation condensers. The cylinder and piston of the compressor are cooled by circulating by a pump P oil cooled by the expanded liquid chlorine in a cooler R. The chlorine passed through the oil cooler R and that passed through one of the re-evaporation condensers are supplied to an auxiliary low pressure compressor G, by which the stuffing- box F is relieved of high pressure, and thence united with the main supply to the first stage inlet M. Chlorine from a second re-evaporation condenser at another pressure joins with the gas supplied from the first stage to supply the second stage. The inlet valves M, O to the compressor stages are actuated by variable cams, and the pressure at which chlorine is supplied to the oil cooler and the condensers is controlled by valves.
Patent GB-655449-A (GB)
Title: Improvements in or relating to arrangements for producing variation or modulation ofthe natural frequency of a resonant circuit
IPC: H03J7/04
Filed: 1948-11-29
Abstract: 655,449. Frequency modulation; valve generating circuits. JOHNSON, K. C. Nov. 29, 1948, No. 30872. [Classes 40 (v) and 40 (vi)] Comprises means for varying or modulating the natural frequency of a resonant circuit, included for example in an amplifier or oscillator, for frequency modulation of a carrier or for other purposes. As shown in Fig. 1, the resonant circuit comprises a capacity branch C and an inductive branch including a coil L and a valve VI. A variable fraction r of the anode voltage is tapped off the potentiometer R and is applied through a condenser K1 to the grid. The natural frequency of the circuit C V1 L is 1/2##LCR/r, and is variable by shifting the tapping T. If the positions of L and C in the circuit are interchanged, the natural frequency is 1/2##LCr/R. A modified circuit, Fig. 2, employs a pentode valve V2 with a coil L in the anode lead, a condenser C connected between anode and cathode and a resistor R2 between cathode and H.T.-. The screen grid is connected directly to H.T.+, and modulating voltage M is applied to the suppressor grid to vary the current distribution between anode and screen grid. The impedance, as seen from the cathode, is a resistive minimum when f= 1/2##LCIS/IK, where IS is the screen current and IK the current through the condenser C. If the positions of C and L are interchanged, the friction IS/IK in the above expression is inverted. In a further modification (Fig. 3, not shown), the series circuit LC is connected between cathode and H.T.-, and the connection from the junction of L and C to the anode is replaced by an inductive coupling to the coil L, thus enabling the circuit to operate as an oscillation generator.
Patent GB-701962-A (GB)
Title: Improvements in piezo-electric transducers
IPC: H01L41/24
Filed: 1948-11-29
Abstract: 701,962. Gramophone pick-ups. ZENITH RADIO CORPORATION. Nov. 29, 1948 [Dec. 26, 1947], No. 30913/48. Class 40 (4) [Also in Group XL (b)] In a piezo-electric element (see Group XL (b)) formed from a ceramic material incorporating barium titanate, barium strontium titanate or other suitable material in which permanent piezo-electric properties may be induced by the application of a polarizing field, the piezo-electric axis varies in direction non-uniformly from portion to portion of the element and is mainly parallel to a major face of the element. The element 16 (Fig. 2) has electrodes 19-30 connected as shown and when a polarizing potential is applied to terminals 32 and 36 piezo-electric properties, are induced which have axes in opposite directions in adjacent portions. In operation the vibrations in each portion are additive but the total capacitance between the electrodes is much greater than would be obtained if a single longitudinal axis had been induced and electrodes placed at each end of the element. A twin plate flexing element of this form for a gramophone pick-up is of wedge shape with electrodes arranged as shown. The pointed end 76 of the. wedge is a rigid extension of the crystal element. Specifications 648,403, 661,168 and 664,493, [Group XL (b)], are referred to.
Patent GB-1478204-A (GB)
Title: Method and device for producing surface-hardened regions on alloy steel articles
IPC: B29C48/50
Filed: 1974-07-12
Abstract: 1478204 Surface hardening of alloy steel articles K HEHL 12 July 1974 [16 July 1973]  30917/74 Heading C7N A method of heat-treating alloy steel workpieces, e.g. plastification cylinders and screws of injection moulding apparatus, comprises heating the workpiece to a temperature between 350C and the Ac 1  or Ac 3  points, e.g. 550-650C, followed by heating a surface above the Ac 1  or Ac 3  temperature and quenching to produce a hardened surface. The workpiece, e.g. cylinder 10, is clamped to a rotatable spindle 3 and inductors 7, 9 are in their uppermost positions. The medium frequency inductor 7 is lowered to the base of the cylinder 10, the generator 26 is switched on and the inductor 7 makes two successive passes to heat the cylinder. The inductor 7 is switched off, the high frequency inductor 9 lowered to the bottom of the cylinder, generator 22 is activated and the cylinder is heated from the inside. As the inductor 9 moves upwardly, a quenching spray exits from the spray head 8 and/or from annular spray head 6. The carriages 19, 23 carrying generators 22, 26 and the associated inductors 9, 7 are driven hydraulically, and the whole process may be automatically activated, e.g. by solenoid valves.
Patent GB-1057838-A (GB)
Title: Fliter apparatus with parallel filter cells containing granular filter layers
IPC: B01D46/30
Filed: 1964-08-04
Abstract: 1,057,838. Gas-filters. H. LUHR. Aug. 4, 1964 [July 27, 1963], No. 30953/64. Addition to 1,051,951. Heading B1T. Filter cells 9 each comprise granular material 17 (sand, gravel or Kieselguhr) between mesh walls 15, 16 and are arranged in horizontal and vertical rows (Fig. 2, not shown) in one or more common housings, successive vertical rows of three cells being cleaned by forcing air from a fan 8 through the cells in the reverse direction. The chamber wall 1a has a horizontal row of vertical slots 4 each opening into a channel member 25 which in turn has three slots 14 each opening to the downstream side of one cell 9 of a vertical row. Slots 4 open into a chamber 5 which receives the filtered gas, and in chamber 5 a nozzle 7 moves horizontally to direct backwashing air to each slot 4 in turn. The material 17 does not fill the space between walls 15, 16, to permit turbulence during backwashing. A series of plates (26, 27, Fig. 2) carried by the cells 9 directs dust-laden gas down and then up before entering a cell, which removes heavier dust from the gas prior to filtration and directs it, together with lighter dust blown from cells being cleaned, downwards to hopper 18. Plates (26, 27) also prevent dust backwashed from one vertical row of cells from entering other cells.
Patent GB-1193834-A (GB)
Title: Improvements in and relating to Crossheads for Piston Engines, particularly large Diesel Engines
Inventor: STERGAARD ANDERS
IPC: F02B3/06
Filed: 1967-07-05
Abstract: 1,193,834. Crossheads. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI A.B. 5 July, 1967 [6 July, 1966], No. 30974/67. Heading F2T. The crosshead pin 3 in, for example, a diesel engine is mounted in bearing shells 6, each being supported by two walls 7, 8 of different compressibility such that, under load, the bearing shell will be subjected to angular deflection relative to the normal longitudinal axis of the pin to an extent which corresponds substantially to the angular deflection of the coacting journal of the pin produced by the load. The outer walls 7 are of greater rigidity against compression than the inner walls 8 and as a result the bearing load P is evenly distributed as indicated by the curve 11.
Patent GB-1019440-A (GB)
Title: Improvements in or relating to irradiation apparatus
Inventor: ROGERS FRANK
IPC: G21K5/02
Filed: 1963-08-06
Abstract: 1,019,440. Screw conveyers; constant head feeder. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 16, 1964 [Aug. 6, 1963], No. 31045/63. Headings B8A and B8S. [Also in Division H5]  Granular material is irradiated by passing it through a series of ducts 2-23 arranged in a vertical bank, across each face of a plate-like y source 1, means being provided to impart helical motion to the granules relative to the axes of the ducts. The material, which may be cylindrical pellets of polythene, is fed into the duct 2 through an inlet pipe 24 at the bottom of which is provided a constant head feeder 34-36, the head of which is determined by the slope of the part 34 (Fig. 6, not shown). The material is carried through the series of ducts by means of rotating stirrers, one in each duct. Each stirrer comprises a shaft 30 carrying a plurality of paddle members 31, joined by a light wire 32 or thin strip, or a number of these, each in the form of a helix. At the downstream end of each duct, the shaft 30 carries a centrifugal impeller 33 to force material through the connecting passage into the next duct. To convey material from the top duct 12 of one bank to the bottom one 13 of the other, the impeller in duct 12 forces material into a vertical passage 25 where the material drops into another constant head feeder for entry into duct 13. The material is finally pushed out of the duct 23 into a delivery pipe 26. Material dropping down the pipes 24, 25 is rotated relative to the axis of the pipe by baffles 29 and 30 respectively, the constant head devices provided in each pipe being necessary to enable easy rotation of the shafts by the drive mechanism.
Patent GB-684804-A (GB)
Title: Improvements in or relating to detachable electrical connections
IPC: H01T13/05
Filed: 1950-12-20
Abstract: 684,804. Two-part couplings. BENDIX AVIATION CORPORATION. Dec. 20, 1950 [Dec. 22, 1949], No. 31052/50. Class 38 (i). A coupling for two conduits 17, 19, and shown as applied to a shielded spark - plug, comprises an insulator 12 within the conduit 17 which abuts the conduit 19 through which passes a conductor 26 having an insulating sleeve 29 provided with a member 36 thereon and acted on by the conduit -connect - ing nut 18 to compress a spring 37 pressing on the sleeve 29 to cause it to abut the insulator 12. The insulator 12 is preferably secured by a tapered bushing, as disclosed in Specification 669,095, in the sparkplug and has a recess 15 accommodating the terminal 14 which is engaged by a resilient contact 28 connected to the conductor 26. A wide portion 30 of the sleeve 29 fits the recess and terminates at a flange 32 with a flat surface 33 abutting the insulator 12. The flange has a bevelled surface 34 on which presses a complementarily-shaped ring 35 under the action of the spring 37. The member 36 is provided with fingers 39 which enter slots 24 in a rigid ferrule 21 secured to the flexible screening 20 comprised in the conduit 19. The fingers 39 are sufficiently long to be engaged by a shoulder 25 on the nut 18. In modifications, both sleeve portions 30, 31 may be dispensed with.
Patent GB-618119-A (GB)
Title: Improvements relating to fluid pressure gauges
IPC: G01L7/04
Filed: 1946-10-22
Abstract: 618,119. Bourdon gauges; indicating-apparatus. HARCOURT, Ltd., D., and MANN, A. J. Oct. 22, 1946, No. 31340. [Classes 106 (ii) and 106 (iv)] In a Bourdon pressure gauge having the transmission mechanism mounted on a rotatable table c, the table has a toothed portion on its periphery in engagement with a pinion j by means of which a zero adjustment may be effected from the rear of the gauge. The Bourdon tube b is carried by a support a in which are rotatably mounted the table c and the pinion whose arbor is slotted or otherwise adapted to be adjusted. The table can be clamped by a plate o which is operated by a screw p from the rear of the gauge or from the inside, in which case the plate is adjusted in manufacture to prevent accidental movement of the table but to permit adjustment by means of the pinion j. The casing m is screwed to the support a and has a hole or holes to receive or give access to the arbor of the pinion j and, if necessary, to the screw p.
Patent GB-1534296-A (GB)
Title: Bacon cutting apparatus
IPC: B26D1/15
Filed: 1976-05-25
Abstract: 1534296 Cutting sides of bacon in two DANEPAK Ltd 25 May 1976 [26 July 1975] 31364/75 Heading A4C Apparatus for cutting sides of bacon in two consists of a pair of spaced, parallel, endless, belt conveyers 5 with an intermediate disc cutter 10, the conveyers and cutter both being drivable by an  electric motor 1 which together with a gear-box 2 is mounted on a frame 4 that can be detached from a frame 28 supporting the conveyers and cutter, the drive connection being broken by interengaging splined socket and shaft 3, 25. The conveyers and cutter are driven by belts 22, 14, the relative drive speeds of these belts being altered by substituting different meshing gear-wheels 18, 19.
Patent GB-1255855-A (GB)
Title: Electrochemical timer having a solid electrolyte
Inventor: GILES STUART
IPC: H01H43/32
Filed: 1969-06-20
Abstract: 1,255,855. Electro-chemical timer. NORTH AMERICAN ROCKWELL CORP. June 20, 1969 [June 27, 1968], No.31401/69. Heading G1Q.  An electro-chemical timer operable in set and timing modes is such that during operation plateable material migrates through a solid electrolyte 20 from a first electrode 16 including a source of plateable material 14 to a second electrode 26 during the set mode and in the reverse direction during the timing mode. The electrodes are arranged with the solid electrolyte within a container 12, from which the second electrode is insulated (by insulator 24), a prestressed condition being developed and maintained in the container to provide a predetermined compressive stress in the second electrode during operation of the timer. During a 'set' mode of operation, a specified number of ampere hours are applied to the cell so as to plate material from the source 14 on to the electrode 26. During a timing mode the current is reversed and held constant and the material plates out on the interface between the solid electrolyte and the source. When all the plated material has been transferred from the electrode 26, the resistance of the timer and consequently the voltage across it rises sharply to indicate the passage of a timed interval and this voltage is used to operate switching circuitry. The prestressed condition in the container improves the constancy of the timing interval provided by the cell. The stress is developed by swaging over the lip of the container 12 at the end 54. The container 12 and electrode plug 16 providing the current path to the source material may be of stainless steel. The source material plate 14 may comprise carbon, silver and solid electrolyte RbAg 4 I 5 , the silver being the active material. The solid electrolyte plate 20 is RbAg 4 I 5 . The leads 18, 22 are of copper and platinum respectively, while the insulator bead 24 is alumina