baber/WOPTO huggingface dataset:
Patent GB-307567-A (GB)
Title: Furnace wall construction
IPC: F27D1/12
Filed: 1927-12-28
Abstract: 307,567. Dehn, F. B., (Detrick Co., M. H.). Dec. 28, 1927. Walls of the kind described in Specification 238,724 having an outer supporting wall 15 and a spaced inner refractory wall of independently supported belts of bricks 14 are provided with heat diffusing members 16 partly embedded in the refractory wall and having liberal surface areas extending into the air space. The bricks 14 are supported in stacks or columns on metal hangers 16, 17 hooked at 16<b> to take over horizontal girders 11 in the outer wall and resting at 16<c> against the adjacent girder 11 below. The hangers 17 are constructed as described in Specification 238,724, but the hangers 16, which are disposed along the vertical lines P, Fig. 1, have wide plate-like body portions 16a extending rearwardly from the brick-supporting flange 16<d> and shelf 16<e> to the wall 15. Flanges along the top and bottom edges of the hangers 16 have lugs 16f between which may be slid plates 18 spanning the air space and forming with the plates 16<a> continuous vertical partitions subdividing the air space into channels. Air is supplied to the channels at 20 and is withdrawn for use at 19. The plates 18 project some distance into the joints between adjacent stacks of refractories 14. To obtain further cooling thin metallic plates 25, Fig. 4, are inserted horizontally between those bricks 14 which are out of contact with the plates 16<a> and 18, with portions extending into the air space and shoulder portions engaging the hangers 17 to retain the plates in position. Further heat diffusing plates 27 may be inserted in the vertical joints between the L-shaped refractories 14<1> which rest on the stacks of bricks 14 and overlap the lowermost bricks of the superadjacent belt. The spaces between adjacent belts is filled with compressible heat resisting material 13. Different parts of the wall may be cooled at different rates.
Patent GB-1141218-A (GB)
Title: Improvements in and relating to the fabrication of resistors
IPC: H01C17/22
Filed: 1967-08-01
Abstract: 1,141,218. Resistors. INTERNATIONAL BUSINESS MACHINES CORP. 1 Aug., 1967 [18 Aug., 1966], No. 35208/67. Heading H1S. The bulk resistivity of a resistive film of semi-conductor material with a monovalent cation additive is reduced by subjecting the film to a high intensity electric field generated by passing therethrough an electrical pulse or pulses of predetermined duration and magnitude. As shown, a micro-miniature module 11 comprises a substrate 12 which may be 96% alumina ceramic on which a conductive pattern 14 is printed which may be derived from metallizing inks containing gold, silver or platinum. Resistor elements 15 may comprises a doped or undoped semi-conductor material (18) (Fig. 2, not shown), for example palladium oxide, finely divided glass (19) and finely divided silver (20). The circuit for applying the pulse comprises a capacitor 23 charged by a battery 22 through a switch 21, with a further switch 24 open, and discharged through a resistor element 15 by opening switch 21 and closing switch 24. Alternatively, a train of pulses, each of greater amplitude than the preceding one, may be delivered from a pulse-generator (Fig. 4, not shown). The pulse or pulses may merely be used to stabilize the resistor, following which the value is adjusted to the required value by abrasion or grinding, or the pulse(s) may be used to trim the value of the resistor. The completed resistors may also be thermally stabilized by baking. Several examples of preparations of resistors are detailed. The pulse used does not heat the resistor. When utilizing pulse trimming, arcing is prevented by submersing the resistor in trichloroethylene or mineral oil.
Patent GB-1484592-A (GB)
Title: Precision balances
IPC: G01G23/18
Filed: 1974-08-12
Abstract: 1484592 Photo-electric read-out of weighing balance ETABS LEONARD SA 12 Aug 1974 [13 Aug 1973] 35496/74 Addition to 1428024 Heading G 1A In a precision balance as described in Parent Specification 1428024, having a movable beam 1 of parallelogram type that moves in response to the load placed on an associated weighting pan, the movable grid 4 is vertically suspended from the beam 1 by a flexible strip 3. The grid is guided past the photo-counting means 5 by a number of adjustable precision screws 9, positioned as shown to prevent lateral play of the grid during the sliding movement that produces the count.
Patent GB-1069886-A (GB)
Title: A tyre carcass holder or loader
IPC: B29D30/00
Filed: 1964-08-31
Abstract: 1,069,886. Moulding tyres. NRM CORPORATION. Aug. 31, 1964 [Oct. 4, 1963], No. 35550/64. Heading B5A. To increase the range of sizes of tyre carcasses which can be dealt with by a dual tyre curing press 13, 14, Fig. 1, the gripping elements of each chuck type loader are each shaped as shown in Fig. 7 and are each connected by a parallel linkage, e.g. 89, 90 to a support so as to be kept parallel during chuck expansion and contraction for engagement exteriorly or interiorly with a carcass to be loaded into the press from above. The chuck elements are each connected by a link to a cruciform actuator. Bladder and carcass detectors are provided for control purposes.
Patent GB-1281679-A (GB)
Title: Saw for cutting workpieces
IPC: B23D45/00
Filed: 1970-07-23
Abstract: 1281679 Circular saws TRENNJAGER MASCHINENFABRIK 23 July 1970 [23 July 1969] 35679/70 Heading B5L A saw for cutting cold metal workpieces comprises a saw frame 2, 12, and a circular saw blade 5, secured to an axle mounted in a gear case 6. The blade 5 and case 6 are movable relative to a workpiece 1 clamped in the saw frame in a direction A parallel to the plane of the upper surface of a metal plate 9 disposed on the gear case 6 and slidably supporting the workpiece. In one embodiment the workpiece is clamped between movable 3 and fixed 4 jaws on the frame part 2 and the saw blade 5 is moved relative thereto by sliding the gear case 6 along a guide 7 on the frame part 12. The guide 7, together with the gear case 6 and saw blade may be pivoted about a vertical axis 13 as shown in Fig. 4 for cutting the workpiece at an angle. In this case the jaw 4 has a recess 4a to receive the saw blade. In a second embodiment the movable clamping jaw comprises a plunger advanced by an hydraulic cylinder which is mounted adjustably on a bridge extending over the frame part 2. In this embodiment the plate 9 is slotted so that it extends on both sides of the saw blade.
Patent GB-793684-A (GB)
Title: Improved lubricating grease compositions
IPC: C10M169/00
Filed: 1956-11-23
Abstract: A lubricating grease comprises a lubricating oil thickened with a neutralized mixture of nitric acid and a C12-C30 carboxylic acid, the mixture having been neutralized with an alkali metal base.  The lubricating oil may be a mineral or synthetic oil or a mixture thereof.  Examples of synthetic lubricating oils are esters of monobasic acids (e.g. reaction products of C8 oxo alcohol with C8 oxo acid, or of C13 oxo alcohol with octanoic acid), esters of dibasic acids (e.g. di-2-ethylhexyl sebacate or dinonyl adipate), glycol esters (e.g. C13 oxo acid diester of tetraethylene glycol), complex esters, phosphate esters, sulphite or carbonate esters, halocarbon oils (e.g. chlorotrifluoroethylene polymer), polysiloxanes, formals, mercaptols and polyglycols and ethers thereof.  C12-C30 acids mentioned are saturated and unsaturated fatty acids.  Suitable metal bases for neutralizing the mixture of acids are the hydroxides and carbonates of sodium, potassium and lithium.  The lubricating grease may contain additional ingredients such as oxidation inhibitors, corrosion inhibitors, metal deactivators, extreme pressure agents, and stringiness agents.  In the examples, lubricating greases according to the invention are prepared from mineral lubricating oil, nitric acid, hydrogenated fish oil fatty acids, sodium hydroxide and phenyl alpha naphthylamine.  For comparison purposes, the preparation is described of a similar lubricating grease but employing stearic acid as the fatty acid and hydrated lime as the neutralizing agent. The preparation is also described of a lubricating grease from mineral lubricating oil, rapeseed oil, sodium hydroxide, phenyl alpha naphthylamine, sodium petroleum sulphonate and N,N1-disalicylidene ethylene diamine.
Patent GB-767629-A (GB)
Title: Improved process for the preparation of sodium bicarbonate and ammonium sulphate
IPC: C01C1/242
Filed: 1954-12-10
Abstract: In a cyclic process for the production of sodium bicarbonate and ammonium sulphate from sodium sulphate reacting with ammonia, water and carbon dioxide, solid ammonium bicarbonate, carbonate or sesquicarbonate may be wholly or partially substituted, a starting solution (I), saturated with bicarbonate at the temperature of precipitation of this salt, is heated to remove the bicarbonate and then the solution is evaporated and cooled to a temperature exceeding 40 DEG C. to crystallize out ammonium sulphate and leave solution (II).  On addition of sodium sulphate and "ammonium bicarbonate" sodium bicarbonate crystallizes out and the starting solution (I) containing sodium, ammonium, sulphate and bicarbonate ions is obtained to begin the cycle once more.  The process is characterized in that if the temperature for precipitation of bicarbonate is 40 DEG C. and that of ammonium sulphate 55 DEG C. the condition must be satisfied that x-y/1-y > 0.72 and preferably 0.70 < x < 0.80 and 0.10 < y < 0.30 where <FORM:0767629/III/1> <FORM:0767629/III/2> The combination of temperatures may be altered and the limits prescribed above vary accordingly.  Preferably the sodium bicarbonate is precipitated between 25 DEG  and 45C DEG . and the ammonium sulphate between 50 DEG  and 75C DEG .  Preferably the composition of the solution from which sodium bicarbonate is precipitated is one which is saturated at the same time with sodium bicarbonate, sodium ammonium sulphate and ammonium bicarbonate.  The yield in the process may be increased by adding readily soluble salts which contain one of the ions of the process, e.g. sodium or ammonium nitrate or rhodanide.  A similar process for the production of ammonium chloride and sodium bicarbonate is referred to in Specification 606,456.
Patent GB-624926-A (GB)
Title: Improvements in or relating to apparatus for holding documents for manifold writing
IPC: B41L3/02
Filed: 1946-12-04
Abstract: 624,926. Block and sheet holders filing papers. ELISABETH, A., and ELISABETH, G. L. Dec. 4, 1946, No. 35906. Convention date, Jan. 3. (Classes 16 and 146 (i)]  In an apparatus for manifold writing of the kind in which the documents having carbon sheets interposed are positioned and also fixed in position on a base plate by means of positioning rulers and other guides carried on the base plate, the carbon sheets are fixed in such a manner, that while permitting freedom of movement of each and every document, direct contact is provided between each of the documents to be located, and the ruler or guide used for locating it, by the provision of gaps or openings in the carbons through which the rulers project. Carbon sheets such as 16 and 18, Fig. 3, are clamped in position on a base plate 1, by spring pressed rods 20, which are actuated by cam levers 24. A document 13 placed under the lowermost carbon 16 is located by the edge 2b of a support 2, and is clamped in position by a spring pressed ruler 4a actuated by a cam lever 7. As shown diagramatically in Fig. 3, further documents such as 15 and 17 are located by the edges of the rulers 4, employed for clamping the underlying document, each ruler 4 being provided with recesses 12 which correspond in position to flaps 11 provided on the carbons. In a modification, the carbons instead of having flaps may have apertures for receiving projections on the ruler and may be clamped by a further ruler in place of the rods 20.
Patent GB-870179-A (GB)
Title: Reactor flushing system
IPC: C08F210/12
Filed: 1959-10-23
Abstract: A process step in the preparation of butyl rubber, using a Friedel-Crafts catalyst in solution at a low temperature, comprises introducing into a flashing zone the slurry of polymer in cold reaction liquid, including volatile unreacted reactants and volatile catalyst solvent, to flash off the volatile materials, passing the flashed volatile materials through a compressing and drying zone to a condensing zone to obtain a mixture of vapour and liquid, transporting the resulting mixture to a separating zone to separate vapour from liquid, passing the separated vapour into a diluent recovery and fractionation system, passing part of the separated liquid to the diluent recovery and fractionation system, and maintaining the remaining part of the liquid as a reservoir in the separating zone, and periodically passing a portion of the reservoir liquid as a flushing medium to the reaction zone.  As an additional step, a portion of the reservoir liquid may be used as a feed charge for the reaction zone.  The butyl rubber is made by the copolymerization of an iso-olefin, e.g. isobutylene or 2-methyl butene-1, with up to 30% by weight of a diolefin such as isoprene, butadiene, dimethyl butadiene, cyclopentadiene or piperylene.  The preferred diluent is methyl chloride and the preferred catalyst is an aluminium halide.
Patent GB-1045262-A (GB)
Title: Electrical operating circuits for a vehicle windscreen wiper
Inventor: AMOS JOHN CHARLES
IPC: B60S1/08
Filed: 1961-10-06
Abstract: 1,045,262. Windscreen wiper circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 20, 1962 [Oct. 6, 1961], No. 35983/61. Heading A4F. [Also in Division H2] An electrical operating circuit for a vehicle windscreen wiper comprises a motor for operating the wiper and a control circuit for operating the motor, the control circuit incorporating a timing capacitor which operates to prevent energization of the motor for a predetermined delay after every cycle or n cycles of operation of the wiper, where n is a whole number in excess of one. In one form of the invention when a control switch 11 is closed a capacitor 13 is charged through a field coil 5a and armature of a windscreen wiper motor 5 and a variable resistor 14. After a period of time determined by the charging of the condenser 13 a transistor 12 is rendered conductive to energize the windings 9 of relay 9, 10, and close relay contacts 17. As soon as the relay is energized the capacitor 13 discharges through a resistor 15, diode 16 and rotary switch 6. The transistor 12 now reverts to a non-conductive state so that the relay is de-energized. The rotary arm 8 has now moved into contact with arcuate contact 7 so that the motor 5 remains energized through rotary switch 6 until the wipers have completed one cycle. A delay determined by the variable resistor 14 follows, whence the whole cycle is repeated. In an alternative form (Fig. 2) when a control switch 28 is closed the motor 5 is immediately energized and current flows through one winding 21 of relay 21, 22 to charge a capacitor 23, and through winding 22 to the negative terminal 3. When capacitor 23 is charged, the effect of winding 21 becomes negligible and the relay is energized to open contacts 27. The motor 5 is now energized solely through rotary switch 6 as is also the relay. Upon the completion of one cycle the motor stops, but although rotary switch 6 is open the relay is maintained energized by capacitor 23 discharging through the relay windings 21, 22 in series and also through winding 21 and resistors 24, 25. When the capacitor is fully discharged the relay becomes de-energized and the cycle repeats. The delay is determined by a variable resistor 24. The above circuits are intended to be used optionally in place of normal continuous operation, such as during light rain of mist. Preferably the resistors 14, 24 are readily variable by the driver of the vehicle to determine the length of the delay. The delay may be effected after each cycle or after every two, three or some other predetermined number of cycles.
Patent GB-1122078-A (GB)
Title: Apparatus for preparing alkali metal salts of aromatic hydroxy compounds
IPC: B01F25/74
Filed: 1966-08-12
Abstract: An apparatus for preparing metal salts of aromatic hydroxy compounds from the corresponding aromatic sulphonic acids comprises a mixing device for mixing the aromatic sulphonic acid and the alkali metal hydroxide in combination with a spraying device for spraying the reaction mixture formed into a vessel 6 of relative quiescence through which an inert gas passes, elements 10 stripping the product off the vessel walls for discharge through a twin conveying screw 12. The aromatic sulphonic acids may be benzene-sulphonic acid, 1.3-benzenedisulphonic acid or 1- or 2-naphthalene-sulphonic acid. The mixing device may be an annular reactor of the type in which a rotating <PICT:1122078/C2/1> shaft 3 is positioned within a cylinder 4 with inlets 1, 2 for the two liquids, the mixture forming being flung by disc 5 fixed to the shaft 3 into the vessel 6 through which superheated steam passes, entering through tangential tubes 8 and leaving through pipe 9.
Patent GB-465338-A (GB)
Title: Improvements in and relating to apparatus for detecting the presence of metallic particles in non-metallic substances
IPC: G01V3/10
Filed: 1935-11-05
Abstract: 465,338. Magnetic tests; locating conductors. BRITISH THOMSONHOUSTON CO., Ltd., and MAYO, C. G. Nov. 5, 1935, No. 36282/34. [Class 37] Metallic particles in a non-metallic substance are detected by passing the substance through a magnetic field produced by a primary winding 2, detection being observed by providing two opposed closely balanced secondary coils 3 with their axes normal to the field direction so that normally the field produces no resultant induced voltage, but on the presence of a magnetic or non-magnetic particle 1 in the substance the field is distorted and a resultant induced voltage is applied to the amplifier 4. The output current of the amplifier may operate a relay to stop the flow of the substance under test.
Patent GB-625296-A (GB)
Title: Improvements in or relating to electric heaters and methods of manufacturing same
IPC: B01L7/00
Filed: 1946-12-09
Abstract: 625,296. Electric heating. MOREY, G. H. Dec. 9, 1946, No. 36302. Convention date, July 5. [Class 39(iii)] An electric heater which is permanently shaped to conform to an article to be heated, comprises a supporting shell 7, having a refractory non-conductor 13 in which is embedded a plurality of refractory spacers 14 through holes in which are threaded resistance elements 3 which are supported clear of the refractory 13. A fabric lining 1 to which the element 3 is attached, e.g. by sewing or by clips, forms a pocket for the article. The element 3 is insulated, e.g. by beads strung between the spacers 14, or by continuous tubing. A layer of insulation 15 separates the refractory 13, which may be fireclay cement or a similar heat resistant material, from the metal shell 7. The space surrounding the elements 3 between the fabric 1 and refractory 13 may be filled with a plastic material (see Fig. 5). The elements 3 may be arranged to permit unequal heating of different parts of the article, and separately controllable circuits may be provided in the heater.
Patent GB-823182-A (GB)
Title: Extraction process for refining lubricating oils
IPC: C10G21/16
Filed: 1957-11-21
Abstract: Phenol is recovered from a lubricating oil fraction which has been extracted therewith by heating each of the extract and raffinate phases to vaporize and flash a major proportion of the phenol therefrom and then removing the remaining phenol from each phase by stripping at a pressure between atmospheric and 100 p.s.i.g. with a non-aqueous gas that is nonreactive with phenol at the stripping temperatures employed.  The solvent extraction is preferably operated under pressure, e.g. at 50-250 p.s.i.g. and the phenol used as solvent may contain 2 to 10 volume per cent of water.  The major proportion of the phenol may be vaporized at 450-750 DEG  F.  The stripping gas may be an inert gas or a hydrocarbon, e.g. a C1-4 hydrocarbon such as a mixture of propane and butane, which may be burnt as a fuel after use.  The stripping may be operated at 0-100 p.s.i.g.  The raffinate may be dewaxed and its colour improved by clay-contacting or hydrofining. A preferred embodiment of the invention combines the solvent extraction process with hydrofining of the hot raffinate at 100 to 800 p.s.i.g.; 550-700 DEG  F.; 0.67 V/V/H and 500 CF/Bbl. using cobalt molybdate as catalyst.  Other catalysts mentioned are nickel tungsten sulphide and molybdenum sulphide.  The hydrofined raffinate may be cooled to 400-450 DEG  F., steam stripped under vacuum and dewaxed.
Patent GB-172230-A (GB)
Title: Improved cleaning and polishing mop
IPC: A47L13/24
Filed: 1920-12-29
Abstract: 172,230. Axten, C. J. Dec. 29, 1920. Socket fixings; handles with clamping-devices for mops.-In a mop of the kind comprising a handle a and cross-piece b of substantially T-shape, the handle may be secured to the crosspiece by means of a clip c comprising two members pivotally connected so that when a tapered end of the handle is forced into one end of the clip it causes the other end to grip the cross-piece. Another form of clip comprises two shaped members connected together by a bolt and nut.
Patent GB-619430-A (GB)
Title: Improvements in spring seat constructions
IPC: B60N2/70
Filed: 1946-12-10
Abstract: 619,430. Spring upholstery. FORD MOTOR CO., Ltd. Dec. 10, 1946, No. 36408. Convention date, Dec. 29, 1945. [Class 52 (iv)] In a seat sprung by sinuously bent wires 15 extending from back to front and formed with an integral inwardly directed V shaped front portion 22, 26 the front of the spring is formed with a short downwardly directed portion 19 and a similar portion 24 is provided at the bend of the V while the rearward end of the spring is curved sharply down and then rearwardly to provide a lever arm 33 for connection by a clip to the rear rail 14.
Patent GB-1116781-A (GB)
Title: Gasoline filling station
IPC: B67D7/40
Filed: 1965-08-25
Abstract: 1,116,781. Dispensing liquids. H. TATSUNO. 25 Aug., 1965, No. 36466/65. Heading A4T. To facilitate vehicles refuelling, a fixed fuel pipe leads above the vehicle passageway to a hose which retracts completely, depends sufficiently to be grasped but not hinder passage of vehicles, or may be moved down to reach the tank. In one embodiment, Figs. 4, 5 not shown, the hose is carried in loops by a cable or chain on a spring loaded drum, the end of the hose being pulled down by hand. In a second embodiment, shown in Fig. 6, operation of a switch actuates a reversible motor 111 which, via planetary gearing 112, 113, winds or unwinds the hose 107 on a hollow shaft drum 103 between its fully retracted and its grasping position, after which the hose is pulled against a spring 120 to the filling position where it is held by releasable pawls. In a third embodiment, shown in Fig. 9, a reversible motor 211 via gearing a clutch 253 unwinds the hose 207 from its fully retracted to its grasping positon, after which it may be pulled down against the slipping clutch. The gear 251 operates three cams with followers operating switches at 252 whereby the motor is stopped in the grasping position by one cam, another cam allows a nozzle switch to operate the motor to pull up the hose to its grasping position, and the other cam allows the hose to be fully retracted by the motor. A register may be zeroised on pulling down the hose and be connected electrically with the flowmeter.