baber/WOPTO huggingface dataset:
Patent GB-421479-A (GB)
Title: Improvements in and relating to rotary scraping apparatus for sludge and settlement tanks
IPC: B01D21/06
Filed: 1933-06-23
Abstract: 421,479. Gravity-separation apparatus. HARTLEY, J. W., Drysdale House, Stone, HARTLEY, E., 3, Dartmouth Avenue, Newcastleunder-Lyme, and HARTLEY, C. J., Cae Brest, The Avenue, Harpfields, Stoke-on-Trent, all in Staffordshire. June 23, 1933, No. 17879. [Class 111] Rotary scrapers for sludge and settlement tanks are driven from a rigid rotating ring or rail mounted on or supported by the outer circular or other wall of the tank. Rotary scrapers 31, 33, Fig. 1, sweeping respectively over the wall and bottom of a settling tank are carried by arms 30 depending from a ring 23, which rotates on rollers 24 on the weirwall 25 of the tank and is driven by means of a pinion 27, or pawl engaging a rack 26 attached to the ring. The ring is steadied by positioning rollers 35. As shown in Fig. 3 the scrapers are partially supported from a feed-box 21 which is pivoted to rotate upon a central supply pipe 20 and is connected to the ring 23 by spokes 29. In this case the ring is driven by a cable passing round the ring and round driving pulleys 43 and tensionadjusting pulleys 45. With this form of drive the ring 23 may be polygonal instead of circular. A board for collecting surface scum and a gangway from the wall to the centre may be associated with the rotary parts. The gangway may be arranged as a scum collector. The ring may be driven by frictional engagement with a driven roller.
Patent GB-929735-A (GB)
Title: Automatic nozzle shut-off device
IPC: B67D7/48
Filed: 1961-05-17
Abstract: 929,735. Valves. SYMINGTON WAYNE CORPORATION. May 17, 1961 [May 31, 1960], No. 17952/61. Class 135. A dispensing nozzle includes a main valve 14, an operating lever 18 which can be held open by a clip 20 and is pivoted to a support rod 22, an outer diaphragm 42 within a chamber 28 to form a sealed space 46, a link 48 coupling the outer diaphragm to a latching means 32 for the support rod 22, an inner diaphragm 76 also attached to the latching means, resilient means to bias the main valve 14 and to force the support rod away from the latching means, a conduit 68 connecting the passageway 16 upstream of the main valve with the sealed space 46 so that the latching means is maintained in engagement when fluid is supplied through the passageway at a predetermined pressure, a Venturi passageway 82 connecting the space between the diaphragms 42 and 76 to a portion of the passageway downstream of the main valve 14, and a conduit 86 to create a reduced pressure in the space when the open end of the conduit is submerged whereby the latching means is disengaged to allow the main valve to close, a slotted member 38 permitting the main valve to be closed by either submerging the nozzle tip or by absence of sufficient pressure in the passageway upstream of the main valve. If the pressure in passageway 16 falls below the predetermined minimum, spring 58 forces diaphragm 42 upwardly to disengage the latching means 32 and prevent the valve from being opened so that accidental discharge is prevented when the supply is restored. The latching means includes a cone-shaped portion 33 which forces locking balls 34 over a shoulder on the support rod. A check valve 74 closes at a lower pressure than the predetermined minimum for operating the diaphragm 42.
Patent GB-951886-A (GB)
Title: Aminoethyl sulfonic acid esters and fungicidal compositions containing same
Inventor: DISTLER HARRY
IPC: A01N41/08
Filed: 1962-05-10
Abstract: The invention comprises compounds of the formulae: <FORM:0951886/C2/1> (R1R2N-CH2-CH2-SO2-O-) 2R, <FORM:0951886/C2/2> or <FORM:0951886/C2/3> wherein R1 and R2 represent hydrogen or an alkyl, alkenyl, cycloalkyl, hydroxyalkyl, aralkyl, aryl or -CH2-CH2-SO2-O-R radical, or jointly with the nitrogen atom represent a heterocyclic radical, R represents a tetrahydronaphthyl radical or an aryl radical which may be optionally substituted, e.g. by alkyl, chlorine, bromine or carboalkoxy, and R3 represents an alkylene radical, and salts of such compounds, e.g. with hydrochloric, sulphuric, formic and acetic acids.  The above compounds are prepared by reacting a , b -unsaturated sulphonic esters of the formula R-O-SO2-CH=CH2 with ammonia, hydrazine or an appropriate amine.  Specification 910,377 is referred to.ALSO:A fungicidal composition comprises an aminoethyl sulphonic ester of the formul : -  <FORM:0951886/A5-A6/1> or <FORM:0951886/A5-A6/2> wherein R1 and R2 represent hydrogen or an alkyl, alkenyl, cycloalkyl, hydroxyalkyl, aralkyl, aryl or -CH2-CH2-SO2-O-R radical, or jointly with the nitrogen atom represent a heterocyclic radical, R represents a tetrahydronaphthyl radical or an aryl radical which may be optionally substituted, e.g. by alkyl, chlorine, bromine or carboalkoxy, and R3 represents an alkylene radical, or a salt of such compounds, e.g. with hydrochloric, sulphuric, formic or acetic acid, together with an inert solid or liquid diluent or carrier and, if desired, a dispersing or wetting agent.  They may be used in admixture with other active ingredients, e.g. acaricdies, insecticides, ovicides, herbicides, fungicides and bactericides.  Specification 910,377 is referred to.
Patent GB-1509743-A (GB)
Title: Power producing units
IPC: F01K13/02
Filed: 1975-04-30
Abstract: 1509743 Automatic control BABCOCK & WILCOX CO 30 April 1975 [30 April 1974]  17970/75 Heading G3N [Also in Division F4] A conventional power-producing unit comprises a steam generator and HP, IP and LP turbines, separately driving electric generators feeding into a common bus, or, a single electric generator. Primary and secondary superheaters, and a reheater, are provided. The unit is automatically controlled during "cold start" and "hot start" to bring the unit on line in the minimum time. As shown, a load demand signal is fed from a dispatch system 29 to a signal generator 30 providing a feed-forward signal representative of load demand. This signal is modified, in dependence on actual load, in a unit 32 and also fed to a unit 35, to modify the development of a ramp signal related to control parameters 36-38. The modified feedforward signal is used to positionally control turbine steam flow control valves 42, a fuel valve 40 and a damper 41 in parallel, and flue gas temperature in dependence on a control programme 56. The ramp signal, on a line 39, is 1) used through a control 43 to position a superheater division valve in dependence on deviation of sensed throttle pressure 44 and 2) fed to a boiler pressure programme 47 and used to determine deviation of sensed primary superheater outlet pressure 48. The sensed deviation, through a sequence 58, control a superheater valve 67 and affects a "high select" unit 52. During "start-up" the unit 52 selects the highest deviation, from boiler pressure deviation 51 and flue gas temperature 53 and throttle pressure 54, which is then used to modulate 50 the demand signal to valve 40 and damper 41. A unit 59 is responsive to manually set criteria of steam temperature 60, rate-of-increase 61 and on-line temperature 62 to derive a rate-of-change ramp signal, for a control 64, whereby the difference between steam temperature and turbine metal temperature is maintained within prescribed limits. The control unit 64 also receives a comparison superheater temperature 63 and a modifying furnace air-flow 65 and controls at low load, by a valve 66, the flow of saturated steam into the superheated steam, and at higher load, by a valve 68, water. The unit 64 also modulates the firing rate through a unit 77 when. during start-up and on low-load, the programmed steam temperature is not attained. Reheat steam temperature is controlled by a unit 69, responsive to the ramp signal from unit 59 and actual air-flow 65 and steam reheat temperature 70, operating via a sequence control 72 a steam attemperator valve 73, a flue-gas recirculating control damper 74 and a reheat water attemperator valve 75.
Patent GB-1010251-A (GB)
Title: Hardening of polymers
IPC: C08B15/10
Filed: 1963-05-07
Abstract: In a process for rendering carboxyl group containing polymers insoluble in water, the polymers are reacted with one or more compounds of formula <FORM:1010251/C3/1> wherein X and X1 are halogen atoms, each of R1, R2, R3 and R4 are hydrogen or alkyl an A is arylene, -CO.O-alkylene -O.CO-,- CO.O - arylene - O.CO-. -CONH CONHCO-, -CONHCOCONHCO-, -CONH CO - alkylene - CONHCO-, -CONHCO-arylene -CONHCO-, -CONHSO2-alkylene -SO2NHCO-, -CONRCO-, -CONRNR CO-, - CONR - alkylene - NRCO - or CONR - arylene - NRCO - where R is hydrogen or alkyl.  Specified polymers are the homopolymers and copolymers of acrylic, methacrylic, fumaric, maleic, itaconic and citraconic acids, semi-esters of polyvinyl alcohol with dicarboxylic acids, e.g. phthalic, maleic and succinic acids, alginic acid, pectin, monoesters of dicarboxylic acids with cellulose, starch, amylopectin and the semi-esters and semi-ethers thereof, and carboxyalkyl or carboxyaryl derivatives of such polymers, e.g. carboxymethyl cellulose.  Specified halogen compounds are methylene-bis-chloracetamide, bis - (chloracetyl)-amine, N,N1-bis-(chloracetyl) ethylene diamine, p-xylenedibromide, N,N1 - bis - (chloracetyl) - hydrazine, N,N1-bis - (chloracetyl) - urea, N,N1 - bis - (a  - bromopropionyl) - ethylene diamine, 1,2 - bis - (monobromacetoxy) - ethane, N,N1 - dibromacetyl ethylenediamine, N,N1 - dibromacetyl propylene diamine - 1,3, N,N1 - bis - (bromacetyl)-hydrazine, N,N1 - bis - (chloracetyl) - dimethyl hydrazine and N,N1 - bis - (bromacetyl) - dimethyl hydrazine. Examples describe the reaction of N,N1-bis-(bromacetyl)-ethylene diamine with (1 and 8) polyvinyl alcohol maleic acid semiester, (2) sodium alginate, (3) polyvinyl alcohol o-phthalic acid semiester, (4) styrene-acrylic acid copolymer, (5) cellulose aceto maleate, (9) styrene-maleic acid copolymer, (10) ethyl cellulose succinate, (11) amylopectin-ophthalic acid semiester, (12) ethyl cellulose maleate, and (13) ethyl cellulose o-phthalate, and of (6) 1,2-bis-(bromacetoxy)-ethane, and (7) p-xylene dibromide with polyvinyl alcohol maleic acid semi-ester. The products may be usedin photographic layers.  Specifications 822,061 and 864,151 are referred to.ALSO:N,N1 - bis - (bromacetyl) ethylenediamine is prepared by reacting bromacetyl bromide with ethylenediamine in chloroform.  N,N1 - bis - (bromacetyl) propylenediamine-1,3 is prepared by reacting bromacetyl bromide with trimethylenediamine in chloroform.  N,N1 - bis - (bromacetyl) hydrazine is prepared by reacting bromacetic anhydride with hydrazine carboxylic acid in dioxane at 40 DEG  C. N,N1 - bis - (chloracetyl) dimethylhydrazine is prepared by reacting chloracetyl chloride with dimethylhydrazine hydrochloride in aqueous sodium carbonate solution.  N,N1 - bis - (bromacetyl) dimethylhydrazine is prepared by reacting bromacetyl chloride with dimethylhydrazine in aqueous sodium carbonate solution. 1,2-Bis-(monobromoacetoxy)-ethane is prepared by reacting monobromoacetic acid with dioxan.  Specifications 822,061 and 864,151 are referred to.
Patent GB-290466-A (GB)
Title: Hoop buckle
IPC: B65D63/06
Filed: 1927-07-08
Abstract: 290,466. Burness, W. July 8, 1927. Bale-tie fasteners. - A device for securing the overlapping ends of hoops, bands, or straps comprises a metal plate having its ends CD bent upwards through about 160‹, each end being provided with a tongue E adapted to be pressed down through the hoop ends into holes F formed in the base AB of the device. The ends CD may be square or graduated and the tongues may have various shapes; as shown each tongue is longer on one side than the other to give a shearing action when they are pressed down, and the longer side of one tongue is disposed opposite to the shorter side of the other tongue.
Patent GB-497442-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/38
Filed: 1937-06-30
Abstract: 497,442. Microphones. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 30, 1937, No. 18163. Convention date, June 30, 1936. [Class 40 (iv)] In a microphone of the type which includes a pressure-actuated conducting portion and a velocity-actuated conducting portion, the pressure actuated portion of the microphone being terminated at its rear in a pipe and the other portion being freely accessible to air vibrations at its front and rear, the axis of zero response is oriented and the magnitude of the orientation is varied by arranging the said portions in predetermined relation to each other and by varying the length of the projecting part of the pipe behind the firstnamed portion whereby the length of the sound path from a source located in the direction of the said orientation at the rear of the microphone to the front of the first-named portion is varied. The axis of zero response or " dead axis " determines the direction of incidence of sound-waves which produces a zero response from the microphone and is arranged to extend from the microphone to a source of sound the effect of which it is desired to exclude. The axis of zero response and the pressure-actuated portion lie on the same side of the axis normal to the conducting portions, as indicated diagrammatically in Figs. 5 and 6, and the magnitude of the inclination of the dead axis 9 to the normal axis 11 can be varied by alteration of the size of the pipe 5 associated with the rear of the portion 3, for example by substituting a pipe of larger cross-section transversely of the ribbon or by adding members to the original pipe 5 to increase its cross-sectional area.
Patent GB-223290-A (GB)
Title: Improvements relating to electric conduit fittings
IPC: H02G3/06
Filed: 1923-07-14
Abstract: 223,290. Firth, F. July 14, 1923. Junction boxes.-The cover b and the main body portion a of conduit fittings, such as junction and inspection boxes, unions, bends, tees, &c., are detachably connected by turn-buttons d on the body which pass through slots or holes f in the cover. The body and cover are formed with complementary flanges or lugs preferably to give a water-tight joint. The turn-buttons may be screw-threaded or the underside of the head chamfered so that rotation is accompanied by a wedging action. Specifications 12117/01 and 16631/11, [both in Class 44, Fastenings, Lock &c.], are referred to.
Patent GB-680341-A (GB)
Title: Improvements in or relating to method and apparatus for removing the skins from shelled nuts such as peanuts or the like
IPC: A23N5/00
Filed: 1949-07-11
Abstract: 680,341. Removing the skins from shelled nuts. BUSHWAY, G. H., GREEN, P.. and GARDNER, J. W., (trading as SEABROOK ASSOCIATES). July 11, 1949 [July 17, 1948], No. 18252/49. Class 58. A method of removing the skins from shelled nuts such as peanuts or the like consist in slitting the skins from end to end, subjecting the peanuts to a water scalding bath for a predetermined time at a predetermined temperature and gently rubbing the slit and scalded peanuts between opposing surfaces to .remove the skins without breaking the peanuts. As shown, nuts are fed from a hopper 12 on to a conveyer 14 provided with parallel and longitudinally extending troughs in which the nuts are carried past slitting. knives 32,. the slit nuts then feeding on to a conveyer 36 which conducts them, submerged beneath a plate 43 through a scalding bath and beneath a fresh water spray 44. The scalded nuts are delivered to a conveyer 58 which conducts them beneath a rubbing plate 64 positioned to engage with suitable pressure the nuts between the fabric facing and the conveyer. The plate 64 is reciprocated longitudinally and its forward end is oscillated transversely and longitudinally to loosen the skins and remove them from the nuts by motion imparted by a member 72, Fig. 8 (not shown), eccentrically rotated about a shaft 69 in a bearing 74. In a modification, Fig. 10 (not shown), the scalding mechanism comprises an inclined spiral conveyer mounted in a casing having at the lower end a reservoir of scalding liquid, the liquid extending partly up the conveyer, the nuts passing through it on passing up to the top of the conveyer where they are sprayed. The slitting may be done after the blanching.
Patent GB-585578-A (GB)
Title: Improvements in or relating to the purification of aromatic hydrocarbons
IPC: C07C7/177
Filed: 1943-11-03
Abstract: Toluene of over 99 per cent purity is produced by reforming, cracking or similarly converting a petroleum oil to form aromatics, fractionating the products to recover a 200-240 DEG  F. fraction containing toluene and undesired olefins which is treated at elevated temperature and pressure with a solid phosphoric acid catalyst to polymerize the olefins, distilling to recover toluene free from polymers, treating with sulphuric acid, water washing, neutralizing and redistilling.  The catalyst consists of phosphoric acid on a solid carrier such as kieselguhr, heated, for example, at about 250 DEG  F., to remove at least part of the combined water.  A gas oil or cracking recycle stock may be thermally cracked in presence of steam at 1200-1450 DEG  F. or a naphthenic naphtha catalytically reformed at 850-925 DEG  F. in presence of hydrogen, the products quenched, and fractioned to separate a 200-240 DEG  F., the other fractions being blended to give gasoline or treated to recover aromatics.  The desired fraction is passed through the catalyst at about 400 DEG  F. and 25-100 p.s.i. with a space velocity of 2-4.5 vols. as liquid/vol./hr.  The products are fractionated, the polymers being used if desired for gasoline blending, after hydrogenation if desired, and the toluene treated with 98 per cent sulphuric acid, water and finally caustic soda, before redistillation.
Patent GB-1057267-A (GB)
Title: System for removing articles from very high-pressure moulds
IPC: B30B15/32
Filed: 1965-04-30
Abstract: 1,057,267. Article ejecting mechanism. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 30, 1965 [May 5, 1964], No. 18263/65. Heading B5A. The base of a mould for use in compression moulding at high pressures consists of a resilient metal diaphragm, of e.g. steel, which is forced downwards against a suitable stop during the pressing operation but which springs back to its original position after release of the pressure, thus freeing the article from the mould walls. In the embodiment shown in the Figure the diaphragm 2 is machined from a steel matrix 1 and is restricted from below by a plinth 3 bolted to the matrix. In alternative embodiments the upward movement of the diaphragm is augmented by a pressure fluid, e.g. oil, introduced thereunder (see Figs. 3-6, not shown) and, if required, a safety means may be incorporated (see Figs. 7 and 8, not shown) by which the fluid may be bled off after the diaphragm has reached a certain point so that any excessive forcing of the diaphragm upwards, and consequent overstraining thereof, is avoided.
Patent GB-1365000-A (GB)
Title: Looms
IPC: D03D41/00
Filed: 1973-04-16
Abstract: 1365000 Weaving looms RUTI MACHINERY WORKS Ltd 16 April 1973 [14 April 1972] 18298/73 Heading DIE  In a weaving loom warps 11 pass through guide grooves 40-47 in rotating rollers 20-23 which reciprocatingly shog the warps weftwise so that they become disposed on alternate opposite sides of moving guides 32-35 which maintain the disposition of the warps as they advance toward the weaving area, where warps disposed on opposite sides of guides 32-35 are guided respectively onto raised 70 and lower 71 warp shedding members on a rotating drum 14. Members 70, 71 form sheds as they rotate, which sheds are maintained open over 90 of the circumference of drum 14, to allow weft insertion, e.g. by means of shuttles guided through apertures 74 in members 70. Members 70 have warp-wise warp guiding grooves 72 in their upper surface and alternate warpwise across the drum 14 with the lower members 71.
Patent GB-748686-A (GB)
Title: An improved detonator case for use in coal mines and quarries and the like
Inventor: MURRAY GEORGE
IPC: B65D81/05
Filed: 1954-06-23
Abstract: 748,686. Packing detonators. REMPLOY, Ltd. June 23, 1954. No. 18433/54. Drawings to Specification. Class 9(1) The description and drawings are the same as those of Specification 748,656, but the claims differ.
Patent GB-583504-A (GB)
Title: Melamine
Filed: 1944-09-27
Abstract: Melamine is manufactured by heating urea (as such or formed in situ, e.g. by heating ammonium cyanate, ammonium carbamate or ammonia-carbon dioxide mixture), cyanuric acid, ammeline, ammelide or melamine-cyanuric acid condensation product, in an atmossphere consisting essentially of ammonia, under superatmospheric pressure (e.g. 200-450 atmospheres but preferably at least 350 atmospheres), at a temperature in the range 275-500 DEG  C. (preferably 300-400 DEG C.).  For the best results the molar ratio of ammonia to urea or its equivalent should be high, e.g. from about 4 : 1 at high pressures (600-1000 atmospheres) to 20 : 1 at low pressures (below 350 atmospheres). The process may be carried out in any pressure resistant reaction vessel made of or lined with material which is not excessively corroded by the reaction mixture and which preferably does not catalyse ammonia decomposition, e.g. silver, stainless steel or glass.  A convenient apparatus is a silver-lined bubble-plate column into which molten urea is pumped at the top and ammonia injected at the bottom, the non-gaseous reaction products being withdrawn through a hot let-down valve whilst the gaseous products pass out of the top of the column.  As alternatives to countercurrent operation, co-current and batch processes are also suitable.  The product may be purified by crystallization from a solvent, especially from water, in which by-products such as ammeline, ammelide and cyanuric acid salts, e.g. melamine cyanurate, are insoluble and may thus be separated and recycled. In examples: (1) a mixture of urea and ammonia is passed into the top of one arm of a silver-lined electrically heated U-tube converter at 400 DEG  C. and 400 atmospheres pressure; (2) the molar ratio of ammonia to urea and the throughput in (1) are reduced; (3) a mixture of urea and ammonia is heated in a silver-lined bomb at 300 DEG  C. and 405 atmospheric pressure; (4) the molar ratio of ammonia to urea in (3) is reduced but the temperature and pressure are raised to 325 DEG  C. and 500 atmospheres; (5) an insoluble by-product of (4) is added to the reaction mixture in (3).
Patent GB-516138-A (GB)
Title: Improvements in or relating to electric systems for railway signal and point control
IPC: B61L7/08
Filed: 1938-06-21
Abstract: 516,138. Railway points & signal operation. VEREINIGTE EISENBAHN-SIGNALWERKE GES. June 21, 1938, No. 18451. Convention date, July 1, 1937. [Classes 104 (i) and 105] [Also in Group XXXVIII] Railway points or 'signals are selectively operated by applying currents of different frequencies f<1>, f<2>, f<3> on a line circuit G, L, with filter circuits such as s<1>, and s<11> for the frequency f<1> whereby control relays are operated to apply power current from the mains Z. D to the motors of the machines A<1>, A<2>, A<3>. Return indication currents are applied to a line circuit O, P and operate indication relays R', R<2>, R' through filter circuits s<12>, s<22>, s<32>. The power current and return indication currents may flow in the same line circuit as the control currents. For the opposite operation of the points the control current may be modulated by interruption or in strength.