baber/WOPTO huggingface dataset:
Patent GB-237577-A (GB)
IPC: D06F61/02
Filed: 1925-06-27
Abstract: 237,577. Model, W. A. July 23, 1924, [Convention date]. Two-roller mangles.-A supporting framework for mangles and wringers comprises spaced vertical bars b connected at the bases with horizontal bars d serving as feet, by means of plates c. A cross frame e connects the opposite supports and serves as a bearing for the pressure regulating screw n and as a support for struts g carrying the mangle boards h. Mangles, boards for.-The Specification as open to inspection under Sect. 91 (3) (a) referred also to the pivoting of the mangle boards to the bearing block k of the lower roller so that they rise and fall therewith This subject-matter does not appear in the Specification as accepted.
Patent GB-1380299-A (GB)
Title: Device for obtaining energy from tyre flexure
IPC: H02K7/18
Filed: 1972-04-11
Abstract: 1380299 Linkwork; ratchet mechanism S E THOMAS 11 April 1972 16699/72 Headings F2K and F2Q [Also in Division H2] An arrangement for converting the linear reciprocating movement of a tubular plunger 20 into continuous rotation of a shaft-mounted wheel 22 comprises teeth 24 on the wheel, a first pin 50 carried by the plunger and arranged to project inwardly during the plunger upstroke so as to engage one of the teeth 24 and thereby rotate the wheel but to be retracted during the downstroke so as to miss the teeth 24, and a second, complementary pin 50<SP>1</SP> which engages a tooth during the downstroke but misses during the upstroke. The pins are pushed out and retracted by fixed cam surfaces 58, 62, 58<SP>1</SP>, 62<SP>1</SP>.
Patent GB-575133-A (GB)
Title: Improvements in or relating to the manufacture of dinitrotoluene
Filed: 1943-10-12
Abstract: Dinitrotoluene, particularly the 2.4-isomer, is made by the nitration of toluene with nitric acid in the absence of sulphuric acid, the toluene first being treated with nitric acid of from 60 to 75 per cent strength, the mol. ratio of toluene to nitric acid being about 1 to 3.5 and the temperature being about 75 DEG  to 80 DEG  C., to produce mononitrotoluene, which is then treated with nitric acid of from 90 to 100 per cent strength, the mol. ratio of mononitrotoluene to nitric acid being about 1 to 3 and the temperature being about 75 DEG  to 80 DEG  C.  In a preferred embodiment of the invention, after the mononitration step, the mononitrotoluene and the acid are separated and the former passed to the dinitrator and the latter to a still from which approximately 70 per cent nitric acid is returned to the acid supply.  The residue from the still is separated to recover any mononitrotoluene present, 98 per cent nitric acid is added to the dinitrator and after nitration is complete, the mixture is transferred to a vacuum still where the nitric acid is separated and subsequently concentrated.  The crude dinitrotoluene is washed twice with hot water, neutralized in a sodium sulphite solution and subjected to an ethyl alcohol treatment, whereby crystals of the 2.4-isomer are separated out.  These are separated by centrifuge and the remaining alcohol is passed to a still where the alcohol is separated for re-use and dinitrotoluene oil, comprising mostly the 2.6-isomer, is obtained.  The products may be used per se in explosives or may be nitrated further to trinitrotoluene.
Patent GB-106427-A (GB)
Title: Improvements in and connected with Apparatus for Detecting the Presence of Combustible Gases.
Inventor: PHILIP ARNOLD
IPC: G01N27/16
Filed: 1916-11-22
Abstract: 106,427. Philip, A., and Steele, L. J. Nov. 22, 1916. Combustible gases, detecting.-In apparatus for detecting the presence of combustible gas, wherein the temperatures of active and inactive catalytic substances are compared, the atmosphere surrounding the inactive substance is kept at the same pressure as that surrounding the active substance, while the gas to be detected is not allowed access to the former. In the apparatus shown, comprising two active wires 7 and two inactive wires 8 forming the arms of a Wheatstone bridge, the active wires 7 are arranged in an upper chamber 5 and the inactive wires 8 in a lower chamber 6 separated from the chamber 5 and sealed by means of a trough 20 filled with resinous &c. material. A pipe 27, with tap 28, enables the chamber G to be filled with pure air, and a long pipe 24, with a small bore, connects the chamber to the atmosphere to enable the pressure, to be maintained equal to that in chamber 5. In a modification, a flexible diaphragm in the lower chamber is adjusted by a screw to vary the pressure. Specifications 27281/11 and 5467/13 are referred to.
Patent GB-1600944-A (GB)
Title: Percusiive hand tool
IPC: B25D11/06
Filed: 1978-04-27
Abstract: A drilling or percussion hammer with a percussion mechanism driven by electric motor is proposed in which a striker (23), connected via an air cushion to a drive member (24) performing an axial reciprocating movement, releases its energy to a tool guided in the drilling or percussion hammer. Via a ring (20) provided with a driving pin (21), the drive member (24) is supported on a rotating curved track (118) closed upon itself. Rolling-contact bodies (100, 100') are inserted between the curved track and the ring. A device of maximum effectiveness for converting the rotary movement of the drive motor into an axial movement of the air-cushion percussion mechanism is thereby created. <IMAGE>
Patent GB-639216-A (GB)
Title: Improvements in packing glands
Inventor: BINGHAM ARTHUR EDWARD
IPC: F16J15/48
Filed: 1947-06-25
Abstract: 639,216. Stuffing-box substitutes. DOWTY EQUIPMENT, Ltd. June 25, 1947, No. 16814. [Class 122(v)] A packing gland for a seal between a high pressure cylinder 14 and a plunger 11 which reciprocates therein comprises a stepped bore through which the plunger operates, the smaller diameter portion of the bore being nearer the cylinder, a first packing gland 15 in the smaller diameter portion, a second packing gland 30 in the larger diameter portion and located against movement away from the cylinder, a differential piston 21 interposed between the two glands and in slidable sealing engagement with the stepped bore and slidably surrounding the plunger, a communication 35 between the spaces at opposite ends of the piston, both spaces and communication being filled with liquid, and means venting the space between the steps of the piston and bore. The pressure in the cylinder 14 acts on the top of the gland 15 and is transmitted therefrom by the differential piston 21 to the liquid in the space 23 beneath the piston at a reduced intensity which reduced pressure acts, via the bore 35 in the piston 21, on the underside of the gland 15 and on the gland 30 which is supported against movement away from the cylinder by a closure plate 33. The pressure differential between the pressure in the cylinder 14 and atmosphere is thus shared between the two glands 15 and 30. The liquid, preferably oil, is introduced into the space 23 through a non-return valve 31. The space 24 between the larger part of the piston 21 and the step of the bore is vented to atmosphere through a duct 25, and to ensure that direct leakage of liquid through the duct 25 does not occur due to the piston 21 moving sufficiently to allow its smaller diameter sealing ring 28 to enter the space 24, a dis-. tance piece 36 is inserted in the space 23. More than two packing glands may be used with a differential piston between each adjacent pair. Specification 539,966 is referred to.
Patent GB-436975-A (GB)
Title: Improvements in rotary filters
IPC: B01D33/00
Filed: 1934-06-07
Abstract: 436,975. Filters. INTERNATIONAL COMBUSTION, Ltd., Aldwych House, Aldwych, London, and BRUCE, F. M., 714, St. David's Drive, Edgware, Middlesex. June 7, 1934, No. 16920. [Class 46] A rotary drum filter having a perforated periphery c and a number of cells s open to the interior of the drum is provided with a stationary surface l<1> which closes each cell during the period that it is being scraped by a scraper p. The surface l<1> consists of a flexible diaphragm carried by a member supported by arms i<1> projecting from an annular box i mounted on a hollow shaft e. A weight i<3> attached to the box i returns the latter to its normal position if it should oscillate about the shaft e. The diaphragm l<1> is provided with openings l<3>, l<2> and the space between the diaphragm and the member l is connected by a pipe m to the interior of the shaft e. Compressed air in the shaft e passes through the opening l<3> and loosens the material on the filter cloth covering the adjacent cell and the loosened material is removed by the scraper p. When the cell has passed the scraper it receives a second blast of air through the opening l<2> which cleans the filter cloth before it again enters the slurry in the tank t. Compressed air enters the shaft e through an opening g<1>, Fig. 2, in a stationary cap g which closes the hollow trunnion d. A second opening g<2> in the cap g communicates with a number of ducts in the trunnion leading to pipes f. The opening g<2> is connected to a suction pump which draws liquid through the pipe f that is dipping in the liquid which has been drawn through the filter cloth. The remaining pipes f are sealed by the cap g. Fig. 5 shows in section a construction of annular box i in which a seal is provided between the passages containing compressed air and the interior of the drum. A casting n is carried by the shaft e by means of rollers n<1>, the sides of the casting consisting of rubber diaphragms p against which rings q adjustably secured to the shaft e bear. The perforated plates forming the periphery of the drum may be constructed and arranged as described in Specification 358,076.
Patent GB-266977-A (GB)
Title: Improvements in power plants
IPC: F01D15/06
Filed: 1926-07-07
Abstract: 266,977. Doderer, F., and Doderer, F. July 7, 1926. No Patent granted (Sealing fee not paid). Transmitting power.- A power plant comprises a compressed-air vessel K adapted to be charged by a fan V, or by a battery of compressed-air flasks F, and to supply an engine or turbine M, the fan being driven either by a motor E or by the engine M, fast and loose pulleys being provided for this purpose on the fan shaft. The air may be heated either in the vessel K by steam or other heating elements, or by heat applied to the pipe conduits, or by leading the air through a furnace to mingle with the furnace gases.
Patent GB-594922-A (GB)
Title: Improvements relating to couplings for electric cables
IPC: H01R13/20
Filed: 1945-07-04
Abstract: 594,922. Two-part couplings. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., RELIANCE ELECTRICAL WIRE CO., Ltd., and DAVIS, H. July 4, 1945, No. 17025. Addition to 547,262. [Class 38 (i)] A detachable two-part cable coupling as claimed in the parent Specification comprises plug-and-socket members containing pairs of co-operating corrugated blade contacts 2, 2a dispersed one on each side of insulating strips 3, 3a, and secured by insulated rivets 4, 4a. The tails of the conductors of the rubber-sheathed cables 7, 7a are left slightly slack when soldered to the shanks of the contacts 2, 2a, the interlocking surfaces of which are held together by the pressure of the sleeves 8, 8a, of soft rubber or other resilient material moulded in situ onto the cable sheaths and the contact members, so that tensile stresses in the coupling are transferred from the contacts to the sleeves and cable sheaths, instead of being carried by the conductors. The socket member 8a has a shroud 9 projecting beyond the ends of the contact blades and surrounding a cylindrical aperture having a circumferential groove 11, which engages with a snap action a circumferential bead at the front end of the co-acting plug 10. Ribs 14, 14a are moulded on each part of the coupling to indicate the correct alignment for engagement, In a modification (not shown), intended to separate with very little pull, the socket member has a tapered conical aperture receiving a corresponding conical plug, the two parts being held in engagement solely by the contact blades. In further modifications (not shown), the socket member is combined with a two-pin plug member, either integrally or through a short length of cable, and the plug member is combined integrally with a lamp holder.
Patent GB-742458-A (GB)
Title: Improved apparatus for utilizing detonation waves
Inventor: POORMAN RICHARD MARION
IPC: B02C19/06
Filed: 1952-06-11
Abstract: 742,458. Spraying-apparatus. UNION CARBIDE & CARBON CORPORATION. June 11, 1952, No. 17034/54. Divided out of 742,387. Class 69 (3). A detonation gun for spraying powder has an elongated barrel 16 communicating with supply conduits 10, 11 for fluid fuel, e.g. acetylene, and oxidizing gas, e.g. air, a chamber 14 having means, e.g. a sparking-plug 15, for igniting the acetylene/air mixture, and separate valves 35, 37 controlling the conduits 10, 11 operable in synchronism with the plug 15. Powder may be entrained in the acetylene or air, or introduced into the barrel 16 at a T-piece 28. A variable speed motor 26 drives a shaft 33 carrying a cam 27 for the valves 35, 37 and a spark timing cam 34. Also on the shaft 33 is a cam 32 for a valve 31 in an inert gas conduit 29, e.g. nitrogen. The sequence of operations is :-cam 27 opens valves 35, 37 to admit fuel and air ; cam 27 permits valves 35, 37 to shut ; cam 32 opens valve 31 to allow nitrogen to flow across valves 35, 37 to prevent flashback ; cam 34 closes circuit to fire the plug 15 ; after detonation nitrogen flows out behind combustion products and forms a protective zone ; finally, cam 32 allows valve 31 to shut. The barrel, which may be 1 inch diameter, and 3 to 6 feet long, may be water cooled. Fuels include hydrogen, butane, propane, pentane, ethylene or coal dust suspended in a gas, and oxygen may replace or be mixed with air. Specifications 742,387, 742,459 and 742,460, [both in Group XXII], are referred to.
Patent GB-1030595-A (GB)
Title: Corona discharge electrode assembly for an electrostatic precipitator
IPC: B03C3/86
Filed: 1965-04-22
Abstract: 1, 030, 595. Electrostatic precipitators. METALLGESELLSCHAFT A.G. April 22, 1965 [April 25, 1964],No. 17048/65. Heading B2J. The corona discharge electrodes 10 in an electrostatic precipitator are secured at their upper ends in a frame 2 and held at their bottom ends in the frame by springs 13 so as to be capable of axial movement caused by thermal expansion or frame distortion. A leaf spring 13 is shown embracing a cylindrical foot 7 of an angle-section electrode 10. In Figs. 2a, 2b and 2c (not shown), the springs take the form of a hairpin 9, split spring 11 and contact-type spring 12 respectively. In Figs. 3 and 4 (not shown) three electrodes are connected together to form a grille which is secured to the frame 2 by screw means 16 and springs 13. Instead of screw means, keys or clamps may be employed.
Patent GB-710358-A (GB)
Title: Improvements in or relating to wood sawing machines
IPC: B27G19/02
Filed: 1951-07-18
Abstract: 710,358. Machinery safety devices. WHITE & SONS, Ltd., T., and WHITE, M. A. July 3, 1952 [July 18, 1951], No. 17072/51. Class 80 (4) In a wood sawing machine having safety fingers 9 suspended from the "topworks" 4 and adapted to fall behind the work. 3 into a position just clear of the chain or other feeding device 2 to prevent slivers of wood being thrown back at the operator the lower position of the fingers 9 is determined by a key 7 on a shaft 6, on which the fingers are pivoted. engaging in arcuate keyways 8 in the fingers. The angular position of the shaft 6 is controlled by an arm 10 with an adjustable end 11 resting on the feed-chain or device 2 so that the lower position of the fingers 9 is automatically adjusted when the "topworks" are moved to accommodate different sizes of work.
Patent GB-1102822-A (GB)
Title: Process for the thermal treatment of aluminium magnesium silicon alloys
IPC: C22C21/08
Filed: 1966-04-19
Abstract: An aluminium-base alloy containing in percentage by weight .Si 0.2. - 1.3 .Mg 0.3. - 1.4 and optionally <TABS:1102822/C6-C7/1> is solution treated at 950 DEG -1150 DEG F. for at least 5 minutes, hot rolled with a cooling rate during rolling of greater than 100 DEG F. per minute, and subjected within 20 seconds to a further cooling to below 250 DEG F. at a rate greater than 100 DEG F. per minute.  The alloy may then be cold drawn with at least 30% reduction in cross-section, and finally heated at 250 DEG  -450 DEG F. for at least 15 mins. The process is particularly applicable to the production of electrical conductors, but may also be applied to sheet or plate.
Patent GB-120213-A (GB)
Title: Improvements in Cinematography Film Spools.
Inventor: LABAN ARTHUR
IPC: G03B21/32
Filed: 1918-10-21
Abstract: 120.213. Laban, A. Sept. 29, 1917, [Convention date]. Drawings to Specification. Kinematograph apparatus.-The boss of a spool for kinematograph films is provided with two circular rows of teeth spaced apart so that they are near the edges of the film, for the purpose of entering the sprocket holes near the end of the film and thus holding the film upon the spool. In spools having wooden bosses, a metal plate having teeth formed by stamping may be secured to the boss, or pins, screws, nails, or the like, may be inserted in the boss. In spools having sheet metal bosses, the teeth may be stamped from the boss itself or from a plate which is soldered or otherwise secured to the boss.
Patent GB-1119612-A (GB)
Title: Hydroxylation of alkenyl substituted aromatic compounds
Inventor: JOHNSON JOHN DOBNEY ANDREW
IPC: C07C45/52
Filed: 1966-04-20
Abstract: Vicinal glycols are obtained by treating alkenyl-substituted aromatic compounds of the formula <FORM:1119612/C2/1> in which R1 denotes a group containing an olefinic bond, R2 denotes an inert substituant, preferably an alkoxy or methylenedioxy group, and n is 0-2, with a peroxidic oxidizing agent under acid conditions in the presence of at least 50% by volume of water based on the total volume of alkenyl-substituted aromatic compound and oxidizing agent.  The oxidizing agent may be an organic or inorganic peroxide, hydroperoxide or peracid, specified oxidizing agents being performic and peracetic acids and hydrogen peroxide.  The reaction may be effected at 15-50 DEG  C. and the reaction mixture may include an emulsifying agent, e.g. cetylpyridinium chloride.  Examples are given in which isoeugenol methyl ether is treated with peracetic acid or with hydrogen peroxide and formic acid, respectively, to yield a glycol of the formula <FORM:1119612/C2/2> Other specified starting materials are anethole and isosafrole.  Aromatic ketones are obtained by distilling the glycols obtained as described above in the presence of a dehydrating agent.  An example is given in which the glycol formulated above is vacuum-distilled in the presence of anhydrous zinc chloride to yield 3,4-dimethoxyphenylacetone.  Isoeugenol methyl ether, used in examples 1 and 2, is obtainable by heating eugenol methyl ether with alcoholic potassium hydroxide.
Patent GB-814659-A (GB)
Title: Improvements in or relating to nodular graphite cast-iron
IPC: C21C1/10
Filed: 1955-06-15
Abstract: A composition for the addition of magnesium to molten cast iron in the manufacture of spheroidal graphite cast iron comprises a dispersion of solid discrete globules of magnesium containing metal in a matrix of magnesium-type flux.  The magnesium containing metal may be a magnesium-copper alloy or an aluminium-copper-magnesium alloy, and the flux may contain chlorides of magnesium, potassium and barium and calcium fluoride. Magnesium may be added to the molten flux and, when it is molten, copper added, the mass may then be vigorously stirred to produce an emulsion of metal in flux which is poured on to a slab to cool.  Iron or steel shot may also be added to the molten mixture. Specification 814,657 is referred to.
Patent GB-1314939-A (GB)
Title: Process for dehydrating effluent gases discharged from an ammonia synthesis reactor
IPC: C01B3/02
Filed: 1971-05-26
Abstract: 1314939 Dehydrating gases SNAM PROGETTI SpA 26 May 1971 [29 May 1970] 17344/71 Heading B1L The scrubbed gases discharged from an ammonia synthesis reacted are cooled to remove the majority of the water and are subsequently substantially dehydrated by absorption before being recycled to the reactor.
Patent GB-646110-A (GB)
Title: Improvements in or relating to milling and like machines for producing twisted surfaces
Inventor: PAYNE NORMAN STANLEY
IPC: B23Q35/10
Filed: 1948-06-28
Abstract: 646,110. Copying by milling and planing. ROTOL, Ltd. June 28, 1948, No. 17361. [Class 83 (iii)] [Also in Group XXIII] In a machine for milling a step along the twisted leading edge of a propeller blade 5, the blade is supported for rotation between centres 10, and a milling cutter 17 which is movable along the length of the blade is applied to the blade by means of a roller 19 engaging a pattern 18, the cutter engaging the blade to tend to turn it in one direction about its axis while a roller 22 tends to turn the blade in the opposite direction about its axis, the depth of cut being limited by means of a roller 21 which is movable with the cutter. The roller 19 is held in engagement with the pattern by means of a weight and pulley device 20 and is carried by the slide 14 of a toolhead 11 movable along the length of the blade on slides 12. The roller 22 is carried in a pivotally-mounted arm 23 which is loaded by a weight 24. The rotary cutter may be replaced by a planing or shaving tool.
Patent GB-313099-A (GB)
Title: Improvements in and relating to electric arc devices
IPC: H01K1/56
Filed: 1929-06-06
Abstract: 313,099. British Thomson-Houston Co., Ltd., (Assignees of Devers, P. K.). June 6, 1928, [Convention date]. Low-pressure metallic - vapour apparatus; vacuum tubes; arc lamps. -To prevent blackening of the bulb of an electric arc working in an inert gas, such as argon, at a moderate pressure such as 25 cms. of mercury, or vapour, such as mercury vapour, or a mixture of gas and vapour a small quantity of a powdered refractory nitride, such as zirconium, titanium, or preferably, boron nitride is placed in the bulb. The lamp shown is of the type in which the electrdes 2, 3 are enclosed in a silica bulb 1 the material of which is gradually graded into seals 8, 9 of a glass through which tungsten can be sealed. To start the lamp coils 11, 12 of tungsten wire are attached to the electrodes and a drop 10 of mercury is brought into contact with their ends by tilting the lamp, the heat of the arc vaporizing sufficient mercury to maintain it. Specifications 18323/13, 104,674; and 180,334, [Class 39 (ii), Electric lamps, Incandescent], are referred to.
Patent GB-403425-A (GB)
Title: Improvements in or relating to modulation systems for use in radio and other carrier frequency signalling systems
IPC: H03C1/20
Filed: 1932-06-20
Abstract: 403,425. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and PRICE, T. H., 17, Sandford Road, Chelmsford. June 20, 1932, No. 17459. [Class 40 (v).] A modulation system comprises a push-pull pair of high-frequency valves with no centrepoint tapping to the tuned circuit connecting the anodes, the high tension and the modulating potentials being applied to the anode circuit of each valve through high frequency chokes. As shown in Fig. 1, the carrier wave is amplified by a pushpull pair of valves V1, V2 the tuned output circuit 5 being connected through condensers 7, 8 between the two anodes. The HT supply leads to the anodes include separate highfrequency chokes 9, 10 and a common speechfrequency choke 12, which latter is also in the plate feed circuit of the valve V3. Modulating- voltage is applied to the grid of the valve V3. In a modification (Fig. 2, not shown), the choke 12 is omitted, and the modulating-valve V3 is connected in series with the carrier amplifiers V1, V2, a high-frequency choke being connected between the cathodes of the valves V1, V2 and the anode of the valve V3.