baber/WOPTO huggingface dataset:
Patent GB-1481685-A (GB)
Title: Detergent ingredient
IPC: C11D3/12
Filed: 1973-08-15
Abstract: 1481685 Calcite UNILEVER Ltd 15 Aug 1974 [15 Aug 1973] 38645/73 Heading C1A [Also in Division C5] Calcite having a surface area of at least 5m<SP>2</SP>/g is prepared by treating a suspension of precipitated calcite or a calcite precipitating solution or suspension with a water-soluble dispersing at a concentration of not more than 50% by weight of calcite. The calcite is suitable for incorporation into detergents (see Division C5). The calcite preferably has a surface area of at least 20, and preferably 30-100 m<SP>2</SP>/g. The dispersing aid may be a polyolectrolyte, e.g. sodium carboxymethyl cellulose, sodium alginate, polyvinyl alcohol, hydroxyethyl cellulose, gelatine or a detergent compound such as alkali metal alkyl benzene sulphonates, alkali metal alkyl sulphates, alkali metal ethoxylated alcohol sulphates, alkali metal olefin sulphonates, ethoxylated alcohols, sugar esters, polyhydroxy alcohol sugar esters, alkyl ethanolamides and ethoxylated ethanolamides.
Patent GB-1363777-A (GB)
Title: Toggle mechanism
IPC: H01H13/00
Filed: 1972-08-21
Abstract: 1363777 Toggles; spring units; power-storing springs INTERNATIONAL BUSINESS MACHINES CORP 21 Aug 1972 [24 Sept 1971] 38856/72 Headings F2K and F2S [Also in Division H1] A toggle mechanism for a capacitive electrical switch comprises a bowed leaf spring 2 pivotally connected at its ends 4, in axial compression, between the arms of a U-shaped blade spring 3, the leaf spring 2 and blade spring 3 being respectively connected to a plunger 1 and capacitive plate 5, or vice-versa (Fig. 4, not shown), of the switch such that downward pressure applied to a keytop 7 fast with the plunger 1 straightens the toggle leaf spring 2 until an over-centre snap action is effected to lift the plate 5. Preferably plate 5 operates as one plate of a capacitive element, for connecting capacitively two dielectrically insulated conductors, and consists of a single moulded piece of high dielectric plastics. Alternatively conductive electrical contacts could be used in place of capacitive contacts. The plunger 1, toggle springs 2, 3 and plate 5 are contained in a casing 6 internally formed with projections 9 against which, on actuation of the switch, the rising plate 5 strikes to limit its upward movement and produce an acoustic signal to notify the operator that actuation of the mechanism is complete, and provide a fixed electrical minimum capacitance to give a fixed electrical base for interpreting signals. A plunger return spring 8 is provided to automatically effect reverse snap action of the switch after depression of the plunger 1 by the operator.
Patent GB-338774-A (GB)
Title: Improvements in or relating to combination under-garments for ladies
IPC: A41B9/08
Filed: 1929-12-20
Abstract: 338,774. Franck, M. Dec. 20, 1929. Combinations. - In Ladies' combinations of the kind having a back opening arranged transversely at the hip level, the edge of the seat portion 2 is provided with an elastic insertion, such as a rubber band 3, along the entire length of the opening.
Patent GB-839534-A (GB)
Title: Nitration of o-toluic acid
IPC: C07C201/16
Filed: 1958-12-08
Abstract: The invention comprises a process for the production of 3,5-dinitro-o-toluic acid, by reacting 1 molar equivalent of o-toluic acid, with at least about 2 molar equivalents of nitric acid, and at least about 10 molar equivalents of sulphuric acid, the latter two acids being of such concentration that the water content of the reaction mixture does not exceed about 15% by weight, based on the total weight of the sulphuric and nitric acids in the reaction mixture, at 25-110 DEG  C., until substantial reaction has occurred, adjusting the temperature to about 0-30 DEG  C., and separating from the mixture the thus formed crystals of 3,5-dinitro-o-toluic acid. The reaction may be carried out in the presence of an inert solvent such as a chlorinated C1-C4 aliphatic hydrocarbon.  The process may also be applied to other o-alkyl benzoic acids.  Examples are given.
Patent GB-1268809-A (GB)
Title: Photographic film and paper processing apparatus
Inventor: NEEDLEMAN SAMUEL
IPC: G03D3/13
Filed: 1969-08-06
Abstract: 1,268,809. Photographic processing apparatus. S. NEEDLEMAN. Aug. 6, 1969 [Aug. 12, 1968; May 21, 1969], No.39474/69. Heading G2A. Photographic sheet material 65 is processed in an upright vessel having side walls 18, 19 defining a narrow chamber of sufficient width to accommodate the sheet, the vessel being open at the top for the complete immersion of the sheet and the introduction of the processing liquid and having an outlet conduit 33 at the bottom connected to a pump 39, at least one liquid applicator 50, 55 communicating with the chamber and including a plurality of nozzles 59 spaced along the width of the chamber, the applicator being connected to the outlet side of the pump whereby laminar flow of liquid is produced across the sheet as the liquid is recirculated during operation of the pump. The applicator nozzles are inclined downwardly at 45 degrees, and baffle plates 62, 63 being provided between the chamber nozzles and the conduits, the plates having nozzles 64 whose diameter increases in the direction of fluid-flow along the length of the conduits to provide pressure equilization. The outlet of the pump may be connected to either conduit 50 or 55 via a valve 47, a similar valve 47A being provided at the other end of the conduits for connection to a water supply. In a modification, Fig. 11 (not shown), two sheets of material may be processed simultaneously by providing an insert (74) to divide the vessel into two part (75), (76), the sheets resting on ledges formed at the bottom of the inserts and processing liquid being pumped to both conduits 50, 55. Alternatively the ledges on the insert are not provided and a single length of film wrapped around the bottom of the insert is processed. In a further modification, Fig. 16 (not shown), a continuous length of multi-layer film is processed by progressive treatment through seven vessels arranged in tandem, the film being fed over a series of rollers into each vessel.
Patent GB-965764-A (GB)
Title: Polymeric glycols
IPC: C08G18/48
Filed: 1960-11-17
Abstract: 965,764. Modified polytetramethylene ether glycols; polymethanes. GOODYEAR TIRE & RUBBER CO. Nov. 17, 1960 [May 23, 1960], No. 39487/60. Heading C3R. An adjusted hydrophilic-hydrophobic modified polytetramethylene ether glycol having a molecular weight of at least 700 and less than 12,000 and suitable for conversion to polymethanes via their bis-chloro-formates, is comprised of repeating oxytetramethylene groups having a connection with a hydrophilic group comprising at least one -O-(CH 2 )ygroup connected to at least one of its hydroxyls, y being 1, 2 or 3, and each mol. of the polytetramethylene ether glycol contains at least 1 mol. and no more than an average of 5-5 mols. of an initiator consisting of ethylene oxide, trimethylene oxide or dioxolane which yields said -O(CH 2 )y-group. The glycol may also contain units derived from one or more saturated or unsaturated aliphatic epoxides. They are prepared by polymerizing tetrahydrofuran below 100‹C. in the presence of a Lewis acid type catalyst which is added before the hydrophilic initiator and in molar excess thereof, and treating the reaction mixture with water to decompose the initiator-catalyst complex to introduce terminal hydroxyl groups on the polymer. Examples of copolymerizable epoxides are butadiene monoxide, isoprene monoxide, epoxy octyl octylene ether, vinyl and allyl glycidyl ethers, styrene oxide, propylene oxide, butylene oxides and amylene oxide. The presence of unsaturated groups enables the resultant polymethanes to be sulphur cured. A prepared mixture comprises, by weight, at least 50 % tetrahydrofuran, 1 to 20 % unsaturated epoxide, 3 to 30% saturated epoxide and 1 to 5.5 mols. of initiator per mol. of polyglycol. Specified catalysts are boron trifluoride and its etherate, antimony pentachloride and a mixture of ferric chloride and thionyl chloride. During the treatment with water, the polymer may be warmed. An antioxident such as quinone may be present during polymerization. The polyglycols are converted to the bis-chloroformates by reaction with phosgene and extended with an amine, e.g., piperazine, to give a polymethane rubber.
Patent GB-1240865-A (GB)
Title: A method of continuously producing fondant creams and plant for performing the same
Inventor: NIEBISCH GUNTER
IPC: A23G3/02
Filed: 1968-08-20
Abstract: 1,240,865. Fondant. OTTO HANSEL G.m.b.H. 20 Aug., 1968, No. 39670/68. Heading A2B. Fondant creams are prepared by boiling a solution consisting of sugar, water, and starch syrup until the desired moisture content is achieved, and then simultaneously cooled and subjected to intense beating, to form the cream, under vacuum. An apparatus for carrying out the above preparation comprises a vacuum cooker associated with a first and a second evaporating chamber of which the outlet is the feed opening of a conventional cream beating machine.
Patent GB-1506320-A (GB)
Title: Clutch release bearing assembly
IPC: F16C23/06
Filed: 1975-09-29
Abstract: 1506320 Clutch release bearings SKF INDUSTRIAL TRADING & DEVELOPMENT BV 29 Sept 1975 [28 Sept 1974] 39793/75 Heading F2L  In a self-centring clutch release bearing assembly a resilient ring 14 is attached to the non-rotating race 3 and has circumferentially spaced tongues 17 which extend towards the sliding sleeve 2 or alternatively (Fig. 5, not shown) the resilient ring is attached to the sleeve and has tongues extending towards the non- rotating race. The tongues are spaced from the component towards which they project when the axes of the sleeve and bearing are coincident and serve to dampen radial displacements of the bearing greater than a certain amount. In the embodiment shown in Fig. 1 a radial flange 4 of the race 3 and a flange 9 of the sleeve 2 are interconnected by a spring clip 10. The race 3 has inner projections 15 which engage in grooves 16 of the ring 14. The ring 14 has an axial projection 19 which has recesses (21) (Fig. 2, not shown) engaged by lugs 22 of the sleeve, the projection 19 being within an indentation 20 of the sleeve 2 and defining the limit of radial displacement of the bearing. The projection 19 also has resilient arms (23) (Fig. 2, not shown) which dampen rotational movement of the ring 14 (and also the race 3) relative to the sleeve 2, these arms forming one side of the recesses (21) and bearing against lugs 22. The ring 14 may be of plastics material.
Patent GB-1240346-A (GB)
Title: Improvements in or relating to gas-fired circulating water heaters
IPC: F23N1/08
Filed: 1968-08-23
Abstract: 1,240,346. Automatic temperature control of gas-fired systems. JUNKERS & CO. G.m.b.H. 23 Aug., 1968 [23 Aug., 1967], No. 40329/68. Heading F4A. [Also in Division G3] A gas or oil-fired water heater for a heating system having a two-speed circulating pump selectively supplying through a three-way valve a central heating system and/or domestic water has a first thermistor R1 in the region of a domestic water storage heater 20, a second thermistor R2 in the region of a heat exchanger 11, and a third thermistor R3 in the region of the central heating system 16, each thermistor being connected in a separate bridge circuit controlling a Schmitt trigger circuit which operates switching means, e.g. relays to control the system. A pilot burner 29 heats a thermo-couple 36 energizing a solenoid 34 so that amanuallyoperated spring-loaded valve is retained in its opened position except on failure of a gas supply, or when a safety device, i.e. thermistor R2 controlling contact b is above a determined temperature. When the circulating pump is operated at. high speed a differential pressure valve 40 operates a main gas valve 38, and when a domestic water tap 46 is opened a pressure switch 48 operates valve 50, allowing additional gas to flow to burner 27. When tap 46 is opened the circulating pump is driven at high speed through a circuit, not shown, causing a gas valve 38 to be opened by differential pressure valve 40, whereby heated water is circulated through storage vessel 20, the temperature of which is regulated by thermistor R1. At the determined temperature the circulating pump and valve 38 are rendered inoperative. If central heating is required, a switch (167, Fig. 6, not shown) is closed, the three-way valve being moved to the appropriate position and pump 26 runs at a high speed hence valve 38 is opened. At a determined temperature measured by thermistor R3, burner 27 is rendered inoperative and the pump speed is reduced to a lower value. Premature switching off of the central heating system by hot water from the vessel 20 is prevented by components (115, 121, 122, Fig. 4, not shown). The arrangement is additionally controlled by an on/off space thermostat (169, Fig. 6, not shown). Circuits are described in a Specification for controlling the various operations.
Patent GB-1449578-A (GB)
Title: Curable polyurethane compositions and cured polyurethane elastomers
IPC: C08G18/10
Filed: 1974-09-16
Abstract: 1449578 Curing polyurethane prepolymers AMERICAN CYANAMID CO 16 Sept 1974 [12 Oct 1973] 40329/74 Heading C3R A polyurethane elastomer is made by the reaction of a composition comprising (a) a prepolymer formed from a polymeric diol and excess TDI and (b) a curing agent comprising 2-cyano-p-phenylenediamine. Also present in (b) may be, e.g. 0À02-1% wt. based on (a) of an aliphatic mono- or di-carboxylic acid, e.g. azelaic, or salt thereof, e.g. with Sn, No or Cr, e.g. Sn octoate.
Patent GB-1202433-A (GB)
Title: Device for gauging vertical and/or lateral defects in railway tracks
Inventor: DULTINGER JOSEF
IPC: B61K9/08
Filed: 1967-09-04
Abstract: 1,202,433. Recording defects in railway track. J. DULTINGER, and L. SCHENKIR. 4 Sept., 1967 [6 Sept., 1966], No. 40392/67. Heading B7N. In a device mounted on a railway car body for measuring and recording either vertical or horizontal defects in railway track, a vibration amplitude meter provides an electrical signal indicative of the vertical or horizontal movement of the car body with respect to a seismic mass forming part of the meter, and this is added, taking account of sign, to an electrical signal indicative of the movement of a point influenced by said vertical or horizontal defects with respect to the car body. Point 7 moves with vertical defects in the track and these movements with respect to the car body 2 are measured by an electric displacement meter 5. The movement of the car body with respect to a seismic mass is measured by vibration amplitude meter 4 and the output of the two meters is combined to give an electrical indication of the movement of the point 7 with respect to the seismic mass and this signal which is a function of the vertical defects is recorded. To avoid very low frequency variations in the zero reading due to vehicle speed variations, superelevation of the track &c. the combined signal is passed to the recorder via a highpass filter 22 of very low cut-off frequency.
Patent GB-1186098-A (GB)
Title: Calenders.
Inventor: STEVENS CYRIL J
IPC: D06C15/02
Filed: 1967-09-06
Abstract: 1,186,098. Fabric and paper calenders. STANDARD INTERNATIONAL CORP. 6 Sept., 1967, No. 40645/67. Headings D1S and D2A. [Also in Division F2] A fabric or paper calender comprises a plurality of stacked rolls 20, 40, 60 journalled at their ends in bearing housings 26, 48, 64 releasably mounted on a pair of end frames 10, at least one roll 40 being a filled resilient roll, and hoist means for moving the roll 40 into and out of stacked relationship to the plurality of rolls which hoist means controls the roll 40 so that during movement thereof it is supported by and rolls upon the peripheral surface of the next lower roll in the stack. The rolls 20, 60 are each formed of steel with a hardened and ground or highly polished face and are each mounted on a shaft or stub shafts 22, 62, respectively, journalled in bearings (not shown) of spherical or tapered type in the housings 26, 64. The roll 20 is axially fixed by securing the housings 26 to the frames 10 by keying 28. Each housing 64 is mounted in a slideway 16 in the respective frame 10 by a tenon 66 and is movable vertically to open and close the roll nips by a ram 72 mounted in a hydraulic cylinder 74. A screw jack (not shown) may be provided for fine adjustment. The roll 60 is driven and frictionally drives the rolls 40, 20. The roll 40 is filled with layers of heat-resistant cotton (42), Fig. 2 (not shown), compressed by end members (46) and is mounted on a steel shaft 44 journalled in bearings (not shown) in the housings 48 each slidably mounted on a frame 10 by a tenon 52 slidable in the guideway 16. The hoist means comprises, at each end thereof, a chain 80 passing around a sprocket 82 carried by a bracket 86 secured to the housing 48. One free end of the chain 80 is fixed to a housing 90 and the other end passes between a ratchet 92 on a shaft 94 journalled within the housing 90 and a pawl 96 and is suspended unattached. The ratchet 92 may be driven by a hand lever 98 or may be power driven. In operation, to replace the roll 40, the tenons 52 are released to allow the roll 40 to roll over the periphery of the roll 60, with casters 100 on the housings 48 rolling along slideways 102 on the housings 64, until end members 46 of the roll 40 rest on surfaces 116 of a cradle truck 110. The brackets 86 are removed from the housings 48 to permit the roll 40 and the truck 110 to be removed. A new or repaired roll is mounted in the housings 48 and placed on the truck 110 and positioned adjacent to the calender. The brackets 86 are attached to the housings 48 and the lever 98 is actuated to move the roll 40 upwardly over the periphery of the roll 60. Finally, the tenons 52 are affixed.
Patent GB-1472955-A (GB)
Title: Excess current responsive switch
IPC: H01H37/74
Filed: 1974-09-18
Abstract: 1472955 Excess current automatic circuit breaker ELLENBERGER & POENSGEN GmbH 18 Sept 1974 [25 Oct 1973] 40721/74 Heading H1N A pivoted lever actuated, excess current responsive switch has a bimetallic strip 28 with a member 31 at one end for retaining contact bridge 32 in the ON position against the bias of spring 36 on slider 23, contact bridge 32 having a stop 43 engaged by slider 23 (dotted line, Fig. 2) for bringing the contact bridge 32 from the OFF position (Fig. 4, not shown) to the ON position (solid line, Fig. 2), the slider having a protuberance 23<SP>1</SP> that engages a camming surface 33 on bimetallic strip 28 to bend bimetallic strip 28 and lift member 31 during a manual switching off to release the retained end of contact bridge 32. Spring 36 also provides contact pressure, tending to rotate bridge contact 32 about the retained end. Contact 37 is fixed relative to housing 1, 2. Member 31 is the second " fixed " contact. Current flows from terminal 39, through heating coil 30 mounted on insulator 29 (optionally also through bimetallic strip 28) to member 31, through contact bridge 32 to contact 37 and terminal 38. Slider 23 is moved to the right hand end of housing 1, 2 (Fig. 4, not shown) after release of contact bridge 32 from member 31 either by manual actuation of rocker 11 (or by torsion spring 16, after automatic opening) acting through lever 21 engaged in a slot 26 of slider 23. In this position spring 36 and housing side 41 pivot contact bridge 32 so that stop 43 engages corner 42 of the slider or engages it during switching on. During switching on, protuberances 23<SP>1</SP> lift member 31 permitting movement of contact bridge 32 until they engage camming surfaces 33. Member 31 then returns and catches the end of contact bridge 32. Spring 36 then rotates contact bridge 32 and presses it against contact 37. The action is trip free since contact bridge 32 is moved by spring 36 even if rocker 11 and hence slider 23 are held in the on position.
Patent GB-1188300-A (GB)
Title: Method of making a Side Wall for a Liquid-Tight Container and Side Wall produced by said method and Container including such a Side Wall
Inventor: KOUDSTAAL WILLEM
IPC: B29C49/26
Filed: 1966-09-13
Abstract: 1,188,300. Lined containers. VAN LEER (U.K.) Ltd. 11 July, 1967 [13 Sept., 1966], No. 40790/66. Heading B8D. [Also in Division F2] A cylindrical container has a liquid-tight side wall comprising fibrous air permeable material 11 with an extruded lining 15 of stretchable, seamless thermoplastic material secured to the fibrous material by an adhesive. The lining may be of polyethylene and the adhesive a heat-responsive substance. The container is completed by securing a bottom end wall and, if desired, a top end wall to the side wall, the internal ribs 13 being used as end wall supports on to which those end walls may be clamped. The Specification describes the method by which the side wall is made (see Division F2).
Patent GB-1080507-A (GB)
Title: Improvements in the manufacture of filled polyurethane elastomers
IPC: C08G18/22
Filed: 1965-09-24
Abstract: A composition suitable for producing a filled polyurethane elastomer on admixture with an organic polyisocyanate comprises a polyalkylene ether polyol, an inert filler, a mercuric salt of an organic carboxylic acid and an alkaline reacting metal compound in an amount sufficient to give the composition a pH greater than 6.5.  The alkaline reacting metal compound may be an oxide, hydroxide, basic acetate, carbonate, propionate, naphthoate of metals such as Pb, Zn, Ba, Mg, Ca or Na. The inert filler may be: kaolin, attapulgite, talc, bentonite, halloysite, Al2(SiO3)3, CaSiO3, ZnS, BaSO4, CaF2, TiO2 or magnesium trisilicate The mercuric salt may be a formate, acetate, isobutyrate, propionate, octoate, oleate, palmitate, stearate, oxalate, adipate, glutarate, benzoate, phenylglycinate, anthranilate, naphthenate or hexahydro benzoate.  Also phenyl mercuric chloride, phenyl mercuric nitrate, phenyl mercuric acetate and phenyl mercuric oleate may be used.  Reference has been directed by the Comptroller to Specification 909,358.
Patent GB-1420689-A (GB)
Title: Rocket actuated escape apparatus
IPC: B64D25/08
Filed: 1973-08-31
Abstract: 1420689 Aircraft emergency escape apparatus STANLEY AVIATION CORP 31 Aug 1973 [31 Aug 1972] 40998/73 Heading B7G [Also in Division F3] An aircraft 30 has a cockpit 34 with a jettisonable canopy 32 and a seat 36 having a back 38 capable of limited upward movement with resultant downward tilting of a seat fan 40 upon actuation of an escape rocket assembly 60. The rocket is secured to the pilot's harness 78 by a flexible towline 80 which incorporates bridle harness 396 and a detonatable connection 392, 394. Initial ejection of the rocket from the cockpit, which is preceded by canopy ejection, is effected by firing of an initial charge (Fig. 10, not shown) which discharges gases into two telescopic tube assemblies (Figs. 7 and 8, not shown) whereby the rocket assembly 60 is propelled to an altitude at which towline 80 becomes tensioned and applies a triggering force to firing mechanisms 350, 352, Fig. 9, which detonate charges 379. This initiates successive detonation of a charge 380 and the main rocket propellant 86. The gases from this are discharged from rearwardly directed nozzles in a nozzle head 88, Fig. 5, the resulting thrust acting through towline 80 to lift the pilot from the cockpit. Subsequent detonation of connection 392, 394 frees the pilot for a parachute descent. The firing mechanisms are released by the movement of a ring 346 which releases locking balls 358, 358a and removes restraint from firing pin loading springs 356, 356a. The ring 346 is carried on and moved by a member 288 which entraps the end of towline 80 and is rotatably mounted in the rocket by a bearing 270 which allows the rocket to spin without twisting the towline. To ensure that the towline applies a truly axial pull to the firing pin triggering mechanism its end 286 is carried round the radiused end 415 of a cranked arm 400 of a lever 402 pivoted at 406 to the rocket body.