baber/WOPTO huggingface dataset:
Patent GB-671337-A (GB)
Title: Improvements in or relating to fluid operated controllers
IPC: G05B11/50
Filed: 1948-10-18
Abstract: 671,337. Fluid-pressure servomotor-control systems. KENT, Ltd., G., MEDLOCK, R. S., and TOOP, G. H. Oct. 14, 1949 [Oct. 18, 1948], No. 27048/48. Class 135. A fluid-operated controller of the integral plus proportional or integral, proportional and derivative type incorporates auxiliary mechanism providing means whereby the effect of the integral control is counteracted during an error which tends to cause a deviation of the output pressure from the control pressure range. A nozzle 11, supplied with air at 17 p.s.i. by a regulator 12, is controlled by a flapper 10 having a nozzle throttling range between 12 and 2 p.s.i. The flapper is operated by the pointer 4 setting the desired value of the variable, e.g. the temperature of a furnace, and by the pointer 1, connected to a measuring instrument, acting through the links 3, 5, 6 and proportional control sensitivity adjusting link 7. The output pressure in the nozzle is connected via a derivative control sensitivity adjusting needle valve 15 to a proportional chamber P and separated from an integral chamber I by a bellows 16, the two chambers being connected through an integral control sensitivity adjusting needle valve 23. The bellows is connected through a flexible diaphragm 21 and bellcrank 19 to the link 6. Should the measured value depart for a long period from the desired value, the integral control will.cause the flapper to fully close or open the nozzle so that the measured value exerts no influence on the controller until it re-enters the control range, generally overshooting the desired value in doing so. The invention aims at preventing this by allowing the controller to begin its corrective action before the measured value re-enters the control range. This is achieved by having a Bourdon tube 31 connected to the output pressure so that it opens a valve 32 to relieve pressure in the integral chamber when the output pressure reaches 12 p.s.i. In a modification, the Bourdon tube opens a valve to allow air to enter the integral chamber when the output pressure reaches 2 p.s.i. A further modification combines the effect of both Bourdon tubes by means of a bellows device which opens one of two valves should the output pressure reach the upper or lower limit.
Patent GB-963271-A (GB)
Title: Combined sedimentation and filtration process
Inventor: CHANDLER EDMUND BASIL
IPC: B01D29/00
Filed: 1961-07-26
Abstract: 963,271. Filters ; gravity separation apparatus. HEAD WRIGHTSON & CO. Ltd. July 25, 1962 [July 26, 1961], No. 27158/61. Heading BID. Liquid is continuously passed downwards from the top of a substantially vertical column, and withdrawn independently through a plurality of filter screens or groups of filter screens included in or comprising the wall of the column, foreign matter being withdrawn at the bottom of the column. In one embodiment (Figs. 1 and 2) a vertical tubular casing 1 having liquid inlet 2 and sedimented solid outlet 4 is divided into two zones by a column comprising filter screens 5. The annular space between casing and column is divided into compartments 10, 10<SP>1</SP>, 10<SP>11</SP> by T-section spacing members 8 extending between the outer perimeter of screens 5 and the inner surface of the casing, each compartment is fitted with intake and outlet flanged pipe connections 11, 12. Solid containing liquid, preferably treated with e.g. powdered coke or fly-ash to conglomerate oil, enters at 2. Heavy solids sedimentate down the interior of columnar screens 5 to the bottom of the casing, while fine solids are filtered through the screen by withdrawing filtrate through outlets 12 the pressure drop so produced aiding sedimentation within the column. At predetermined intervals outlet 12 in one of compartments 10, 10<SP>1</SP> is closed and water pumped in through 11 to backwash solids from the screens, filtration meanwhile continuing in the other compartments. This operation is repeated in turn for each compartment. In further embodiment (not shown), the annular space between casing and column is divided into axially extending compartments by radial plates projecting from the filter screens. Two concentric groups of columnar screens may be provided.
Patent GB-928284-A (GB)
Title: Resinous compositions
IPC: C08G59/68
Filed: 1961-07-27
Abstract: Coating compositions comprising an epoxy resin, hexamethoxymethylmelamine and, as curing agent, p-toluenesulphonic acid, and optionally inert organic solvents (such as hydrocarbons, alcohols and ketones) and colouring matters(e.g. titanium dioxide) may be applied by the use of doctor knife, roller or brush.  In examples compositions of hexamethoxymethylmelamine, a polyglycidyl ether of bisphenol A, p-toluene-sulphonic acid, titanium dioxide and a mixture of equal parts by weight of methyl isobutyl ketone, butanol, toluene and xylene are drawn down on tin-plated steel panels and baked for 30 minutes at 375 DEG F.  Further films are drawn down on steel panels and baked for 30 minutes at 320 DEG F.ALSO:Compositions comprising a mixture of 72 to 93% by weight of an epoxy resin and correspondingly 28 to 7% of hexamethoxymethylmelamine are cured by 0,5 to 1,5% by weight of the hexamethoxymethylmelamine of p-toluene sulphonic acid. The epoxy resins are prepared by the reaction of an epihalohydrin with a polyhydric phenol of which many are specified.  Many organic solvents for the compositions are specified and in the examples the solvent used is a mixture of equal parts by weight of methyl isobutyl ketone, butanol, toluene and xylene.  Colouring matters such as titanium dioxide may be included. The compositions are used to give surface coatings.
Patent GB-1429357-A (GB)
Title: Buildings
IPC: E04B1/348
Filed: 1973-06-07
Abstract: 1429357 Prefabricated building unit R GORSKI 7 June 1973 [16 June 1972] 27224/73 Heading EIA A prefabricated reinforced building unit 1 in the form of a rectangular open ended cell having plate like walls defining a ceiling 5, floor 3 and opposed side walls 4 is reinforced at at least each corner to provide a rigid connection between the adjacent plate like walls and integral foot portions 6 which extend parallel to the longitudinal axis of the cell and throughout its length for supporting the cell on a surface. The ceiling 5 and floor 3 are of equal thickness and each wall is of constant thickness along its length. The ceiling and/or floor may be prestressed. The foot portions are preferably extensions of the side walls but may alternatively be offset from the side walls. The foot portions are preferably of trapezoidal or rectangular cross section and may be provided with chambers into which cement may be injected. Connecting elements, e.g. profiled rails may be provided on the outside of the ceiling and/or floor. The elements on each cell are suitably connected by transversely extending tensioned bars embedded in the walls of the unit. A building may be constructed from such units by joining them end to end to form a group, joining such groups in side by side relationship to form a storey and then building one or more such stories thereon. Passages 17 may be formed in the building by placing two units of differing width adjacent to one another. Vertical shafts 20 may also be formed by suitable juxtaposition of units.
Patent GB-284751-A (GB)
Title: Improvements in electric machines and apparatus
IPC: H02K3/40
Filed: 1926-11-01
Abstract: 284,751. English Electric Co., Ltd., and Youngmark, F. A. Nov. 1, 1926. Coils and conductors; insulation. - The insulated high-tension windings of electrical machines and apparatus, such as the projecting coil-ends in a dynamo, are provided with a conducting or semi-conducting covering in intimate contact with and continuous over the surface of the insulation and connected to earth or other point of low potential in order to limit the potential difference which can exist between the surface and adjacent bodies. The air adjoining the windings is thereby kept practically free from electrical stress and brush discharges from the insulated surfaces of the windings are minimized. The covering may be applied to the surface of the insulating material before or after it is wrapped over the whole surface of the windings or locally, for instance where the two phases of an alternator winding cross each other or lie side by side. It may consist of a thin coating of carbon, such as floccular graphite in the form known under the registered Trade-mark " Aquadag " or powdered graphite mixed to a cream with benzine, painted on and polished with a brush before it completely dries. Or paper or tape soaked in a suspension of carbon in a liquid, such as Indian ink, may be employed. Alternatively, metal may be used in the form of foil on a graphite layer on the surface of the insulation or sprayed on to it by the Schoop process. In the case of slot-wound machines, form-wound coils may be coated during manufacture and inserted in slot liners which are similarly coated internally and externally so as to give an earth connection via the machine core. Leatheroid liners coated with " Aquadag " may be used for this purpose. The conducting surface may be covered with an additional coating, insulating or otherwise, for mechanical protection and the prevention of leakage across upstanding fibres or particles. Paint or varnish, with or without taping, may be used for this coating.
Patent GB-487373-A (GB)
Title: A means for supporting rolls of cloth or like material
IPC: B65H49/32
Filed: 1937-10-08
Abstract: 487,373. Winding fabrics. BROWNSTONE, N. H. Oct. 8, 1937, No. 27340. [Class 42 (ii)] A flat board on which cloth &c. is to be wound has its ends clamped in U-shaped clamps 8 which have pivot extensions 9 so that it can be mounted in slots, hooks 15, or bearings 6, 7 in one upright 1a of an inverted-U-shaped. frame 1 and a movable slide 4 depending from cross-rods 2 near the top of the frame. One pivot extension is squared for a handle 16. As shown in Fig. 4, the pivot extensions on the clamps are replaced by holes 13 through which a long shaft can be passed.
Patent GB-730608-A (GB)
Title: Process for the preparation of -amino-ª†-ketocaproic acid
Filed: 1952-10-30
Abstract: The invention relates to e -amino-g -keto-caproic acid obtainable by hydrogenating the corresponding e -nitro-keto-caproic acid in an inert solvent in the presence of a hydrogenating catalyst such as Raney nickel or cobalt or a noble metal, e.g. platinum or palladium at room or elevated temperature. In examples: (1) the nitro-keto-caproic acid is hydrogenated using palladium-barium sulphate as catalyst and glacial acetic acid as solvent and the resulting amino-keto-acid is recovered in the form of its oxalate; (2) the hydrogenation is effected using methanol as solvent and the product is worked up to yield the free amino-keto-caproic acid and minor amounts of an unidentified amino-acid; the primary and secondary oxalates and the hydrochloride of the amino-keto acid are referred to.  The free acid and its oxalate yield condensation products on heating, which are suitable for the production of adhesives and lacquers, e -Nitro-g -keto caproic acid is obtained by condensing furfural with nitromethane yielding 1-nitro-2-furyl-ethylene which is then boiled with concentrated hydrochloric acid.
Patent GB-949150-A (GB)
Title: Improvements in or relating to electric resistance spot welding machines
Inventor: MEYER HANS
IPC: B23K11/10
Filed: 1962-07-17
Abstract: 949,150. Welding by pressure. BROWN, BOVERI & CO. Ltd. July 17, 1962, No. 27398/62. Heading B3R. An electric resistance spot welding machine for spot welding at various levels comprises a stand 1, a support member mounted on the stand for horizontal movement relative thereto and two co-operating electrodes 7, 7, each electrode having an actuating unit fixed to an arm of the support member and comprising a first piston and cylinder for adjusting the electrode in the vertical direction and a further piston and cylinder co-operating with the first piston and cylinder to produce the welding pressure. The support comprises a pair of spaced arms 2 joined by pieces 3 and horizontally movable in the stand 1, each arm carrying a unit 4 which comprises a cylinder 5 carrying an electrode 7 and guided by rollers 8 in the unit to move relatively to a piston 6 connected to the piston 10 of a main cylinder 9. Each cylinder 5 carries a cam 15 for engaging a limit switch 11 adjustable by a motor-driven spindle 12. A welding transformer or rectifier is carried between the arms 2. In operation the switches 11 are set by push-button control to the required adjusted position of the electrodes as indicated on a scale, oil is supplied to the cylinders 5 through valves 30, 31 to move the cylinders 5 relative to the pistons 6 until the cams 15 actuate the switches 11 which causes electrically controlled valves 32 to close. The electrodes remain in their adjusted positions spaced from the work until cylinder 9 is supplied with pneumatic or hydraulic fluid to force the pistons 6 down and hence the electrodes into contact with the work and a spot weld is effected. After welding the angle 21, the electrodes are returned, the support 2 is moved horizontally, the limit switches are set to new positions and welding of angle 22 is effected. The workpiece may travel along a rail track. Displacement of the arms 2 and of the electrodes can be achieved by programmed control.
Patent GB-411428-A (GB)
Title: Improvements in sweepers
IPC: A47L11/33
Filed: 1932-10-04
Abstract: 411,428. Carpet-sweepers and the like. FRENCH, J., 245, West 107th Street, Manhattan, New York, U.S.A. Oct. 4, 1932, No. 27469. Convention date, Oct. 20, 1931. [Class 138 (i).] A sweeper or like surface treating device comprising a casing, a rotatable brush or like implement enclosed therein connected with traction wheels, has an opening in the upper portion of the casing overhanging the brush and a dustpan removably inserted in the opening. The invention is particularly applicable to a sweeper of the type described in Specification 411,449 having two cleaning elements 24, 25 which may be brushes having different characteristics, a stiff brush 24 for carpets and a soft one 25 for sweeping hard surfaces, or the treating implements may be for polishing, dressing or otherwise treating floors or the like. A dustpan 35 can be removed and replaced through the top of the casing 1. The rotary brushes 24, 25 are mounted in a casing connected with the usual traction wheels 2, 3 in such a way that one or other brush only is used, the other remaining idle and raised according to the position of a handle of the sweeper. The handle 6 has a yoke 6<a> pivoted in the casing. U-shaped links 11, 12 are pivoted to discs 13 on the collar members attached to the handle. The lower ends of the links 11, 12 are attached to lever members 14, 15 which are mounted on axles 5 of the traction wheels whereby they are capable of rocking. The outer ends of the levers carry bearings for the brushes 24, 25. Bearings 27 are cutaway to allow brushes to be renewed or replaced. Friction wheels 28, 29 are secured to the ends of journals 26. The friction wheels are kept in contact with the traction wheels by springs 30 at the ends of levers 14, 15. By pulling the levers 14, 15 outwardly the journals 26 are freed together with the brushes. Cams 33, 34 fixed to the casing 1 render one or other brush 25 inoperative by separating it from the friction wheel 3 as at the right of the Figure when the handle is rocked to depress the inner end of the lever 15 which raises the brush 25. A reversal of the handle raises the brush 24 rendering it inoperative and the brush 25 operative. The dustpan 35 has lips 36 which rest on the top of the casing and has a bottom 38 with upturned ends near the brushes to collect the dirt. A partition endway in the dustpan 35 prevents dirt from the operating brush being thrown against the idle brush. A handle 42 is provided on the top of the dustpan and a comb is provided for removing hair and fluff from the hard brush 24.
Patent GB-828082-A (GB)
Title: Improvements in or relating to control devices
IPC: F24F11/02
Filed: 1956-09-07
Abstract: 828,082. Air-conditioning. CARRIER ENGINEERING CO. Ltd. Sept. 7, 1956 [Dec. 16, 1955], No. 27509/56. Class 137 A control device for adjusting a number of variable devices comprises two concentric rotatable control members at least one of which bears indicia one or more reciprocable control members disposed rearwardly of the two rotatable control members and a transparent cover readily movable into a closed or open position and disposed in front of all the control members and carrying indicia arranged to coact with the indicia on one or more of the rotatable control members to indicate the angular disposition thereof. As applied to the control of an air conditioning unit a rotatable control knob 3 on a shaft 11 connected to the thermostat of the system and the knot 4 is on a concentric shaft 12 connected to the refrigeration equipment. The reciprocable control comprises a reflector 5 operated by a knob 14 against the action of a spring 18 and engaging a member 13 connected to the reset control of the air conditioning unit. The cover has a transparent centre portion 8 bearing an indicia 9 and is supported by an arm 15 pivoted at 22 and having notches 23 engaging the ends of a C-shaped spring 28 that snaps over the dead centre to hold the cover in both the open and closed positions.
Patent GB-796738-A (GB)
Title: Monoazo dyestuffs of the benztriazole series and metal complexes thereof
IPC: C09B45/14
Filed: 1955-09-27
Abstract: 2 - Phenyl - 5 - amino - 6 - methylbenztriazole is made by diazotizing aniline and coupling with 2,4-diamino-toluene to yield a dyestuff paste which is autoclaved with copper sulphate and ammonia solution.  2-Phenyl-5-amino-6-methoxy- and -nitro- and 2-(31-sulphonamidophenyl)-5-amino-benztriazoles may be made in similar ways.  The products are dyestuff intermediates vide Group IV (c).  Specification 296,819, [Class 2 (iii)], is referred to.ALSO:<FORM:0796738/IV (b)/1> The invention comprises dyestuffs of formula where R is H, Me or Et, and R1, R2 and R are H or substituents other than SO3H or COOH and their chromium and cobalt complexes.  The metal-free dyestuffs are made by coupling appropriate diazotized aminophenols with triazoles in neutral or weakly acid media. Diazo-components indicated are 2-aminophenol and its alkyl, halogen, nitro and acylamino derivatives, 2-aminophenol-4- and -5-sulphonamides, the latter being optionally substituted in the sulphonamide group by alkyl or aryl radicles, 2 - aminophenol - 6 - nitro - 4- and -4-nitro-6-sulphonamides, 2 - aminophenol - 4 - chloro and -methyl - 5 - sulphonamides and 2-aminophenol-4- and -5-alkylsulphones.  Diazo components may also be used in which a substituent oto the amino group is convertible into the hydroxy group during metallization, e.g. 1-amino-2,5-dimethoxy- and 2-methoxy-5-nitrobenzenes.  Indicated coupling components are 2 - phenyl - 5 - amino - benz - triazole and its 6-methyl-, -chloro- and -methoxy-derivatives, 2 - (31 - sulphonamido-, and -methylsulphonyl-, 21 - methoxy - nitro - chloro- and 21 - methoxy-51 - sulphomonomethylamido - phenyl) - 5 - amino - benztriazoles and 2 - (21 - chlorophenyl)-5 - amino - 6 - methyl - benztriazole. Metallization is effected in conventional fashion.  The metal complexes dye wool, silk and poly-amide and -urethane fibres from a neutral or weakly axid bath in brown to green shades.  Examples are provided of the preparation of the dyestuffs from certain of the above indicated reactants and the use of the metallized dyestuffs in dyeing wool. Specification 296,819, [Class 2 (iii)], is referred to.
Patent GB-518148-A (GB)
Title: Improvements in or relating to mounts for graduated circle plates
IPC: G01C1/02
Filed: 1938-09-21
Abstract: 518,148. Indicating - apparatus. COOKE,'TROUGHTON, & SIMMS, Ltd., TAYLOR, E. W., and HARRISON, J. W. Sept, 21, 1938, No. 27551. [Class 106 (iv)] [Also in Group XX] ,  In order to maintain the concentricity of a graduated glass &c. circle plate in a theodolite &c. during changing temperature the circle plate 1 is carried by the mount 2 . through intermediate members such as balls 8 or the like to permit relative radial movement, between the plate and the mount. The mount comprises an annular ring secured to a spigot 3 and is provided with three radial grooves 7, in each of which a ball 8, positioned by a cage 9, is located, the glass plate being, if desired, furnished with similar grooves 6 or with recesses. The grooves may take various forms in cross-section and rollers, semi-cylinders, or hemispheres may replace the balls 8, the hemispheres or semi-cylinders being preferably cemented to the underside of the circle plate. A spring 10 is provided bearing upon the circle plate. Specification 430,275 is referred to.
Patent GB-1160509-A (GB)
Title: Improvements relating to Electrical Contact Elements.
IPC: H01R12/81
Filed: 1968-06-11
Abstract: 1,160,509. Two-part couplings; connectors. AMP Inc. 11 June, 1968 [20 June, 1967], No. 27629/68. Heading H2E. In a contact element 11 formed from sheet metal, e.g. brass, which is of substantially U- shaped cross-section, with laterally opposed side walls 24 and a planar floor 14, part of which is bent upwards to form a resilient contact portion 27, so as to leave an underlying slot in the floor, lugs 40 are provided to limit the upward movement of the contact, downward movement being restricted by the free end 28 of the contact strip being wider than the region 29 of the slot below it. In another embodiment (Figs. 5 and 6, not shown) the lugs are positioned at the other end of the contact portion, abutting a short flattened platform formed in the bent-up strip adjacent the end joined to the floor. In a further embodiment (Figs. 7 and 8, not shown), the contact portion is continuous with the floor, the side walls being formed into an inwardlyextending depression 43, and acting to limit downward movement of the contact part. All the embodiments may be provided with crimping means 13 for attachment to a wire. The contact element is designed for use in a housing for contact engagement with a flat contact surface of a tape cable, printed circuit board &c, as is fully described in Specification 1,091,382.
Patent GB-881112-A (GB)
Title: Improvements in and relating to ball valves
IPC: F16K33/00
Filed: 1959-08-13
Abstract: 881,112. Ball and float valves. HERBERT, H. H. Aug. 13, 1959 [Aug. 13, 1958], No. 27723/59. Class 135. In a ball and float valve, an auxiliary removable float 3 of foam plastic material formed with a hemispherical cavity 4 and a groove 9 is fitted beneath the ball 6 to increase the buoyancy of the latter.
Patent GB-1420954-A (GB)
Title: Process for the extraction of sulphur from aqueous slurries
IPC: C01B17/033
Filed: 1972-06-14
Abstract: 1420954 Sulphur recovery BRITISH GAS CORP 14 June 1973 [14 June 1972] 27766/72 Heading CIA Sulphur is extracted from aqueous slurries containing it using carbon disulphide at or substantially at its boiling point as solvent. The sulphur may be isolated from its solution in CS 2  by passing the solution into a vessel containing molten sulphur, the evaporated solvent being condensed and returned to the solution stage if desired.