baber/WOPTO huggingface dataset:
Patent GB-838439-A (GB)
Title: Variable resistor
IPC: H01C10/42
Filed: 1956-08-08
Abstract: 838,439. Variable resistors. CHICAGO TELEPHONE SUPPLY CORPORATION. Aug. 8, 1956 [Aug. 31, 1955], No. 24317/56. Class 37. A variable resistor comprises a flat base carrying an elongate resistive track and an elongate conducting path parallel to the track with a contact member movable mounted in a slot in the base, bridging the track to the conducting path. Fig. 1 shows an insulating base 5 carrying carbonaceous tracks 6 applied by spraying, brushing or other suitable methods and sprayed metal conducting paths 7. The stamped sheet-metal bridging contact 13 having spring fingers 10, 11, is retained in slots 8 by sharply-bent abutments 14. Terminals are provided by integral tongues 15 on which are sprayed metal films 16. Alternatively, sheet metal plug-in prongs may be fitted by the method described in Specification 809,419. Fig. 6 shows a potentiometer in which only one slot 8<SP>1</SP> is used. The bridging contact, Fig. 5, has U - shaped formation with outwardlydirected legs terminated in spring fingers extending in opposite directions to enable the contacting points to lie on a line passing through the axis of the member. A knob 21 attached by the T-shaped key 18 retains the bridging contact in the slot 8<SP>1</SP>, Another form of bridging contact having W-shape is shown in Figs. 8, 9. It is attached by means of a bifurcated key 18<SP>1</SP> to a knob 21<SP>1</SP> having a boss 26 which engages with the slot 8<SP>1</SP>. Fig. 10 shows an embodiment in which the resistive track and conducting path are on opposite sides of the base. The bridging contact is provided by a W-shaped member 28 interlocking with the U-shaped member 29.
Patent GB-1102887-A (GB)
Title: Treatment of elastic artificial filaments
IPC: D01F6/72
Filed: 1965-06-09
Abstract: 1,102,887. Treating elastic synthetic filaments. CELANESE CORPORATION OF AMERICA. 9 June, 1965 [22 June, 1964], No. 24357/65. Heading B5B. Filaments exhibiting elastic stretch and made from synthetic elastomeric polymers are treated to reduce their permanent set with a swelling agent and then dried or allowed to dry spontaneously, whereby substantially all the swelling agent is removed. The filaments can be stretched during the treatment, e.g. by 450 to 500% of their original length, but preferably by not more than 200% of their original length. Throughout the Specification, the stretch percentages are the increase in length of the filaments as a percentage of the original length. In some cases the filaments are treated while held taut without stretch or even while completely relaxed and thus free to shrink. The filaments may particularly be made from elastomeric segmented copolymers comprising segments derived from essentially amorphous low melting point soft polymers such as polyesters, polyethers or polyhydrocarbons alternating in the chemical chain with hard high melting point polymers such as polyureas, polyurethanes or polyamides. The filaments may advantageously be made from blends of segmented copolymers. The swelling agents used may be the lower mol. wt. monohydric alkyl alcohols, the lower mol. wt. halogenated aliphatic hydrocarbons, substituted aromatic hydrocarbons, the lower mol. wt. ketones, methanol-methylene chloride blends and mixtures of acetone and water. The filaments after treating with the swelling agent and drying are preferably subjected to a heat treatment, preferably at 100‹ to 150‹ C. The filament may be stretched by 200 to 500%, preferably 250 to 400% at room temperature and relaxed to a length less than the stretched length before being contacted with the swelling agent. The filaments used in the examples are made from polyester-urethane copolymers obtained by reacting hydroxyl poly-(tetramethylene adipate), butanediol-1,4, and diphenyl methane - p,p<SP>1</SP> - di - isocyanate by dry-spinning a 30% solution in acetone of the copolymer or of a blend of two such copolymers.
Patent GB-343449-A (GB)
Title: Improvements in and relating to the production of anthraquinone derivatives
IPC: C09B1/34
Filed: 1929-08-09
Abstract: Arylidoanthraquinone sulphonic acids.-A 1-amino- or 1-methylamino-2-sulpho-4-arylidoanthraquinone is treated with sulphuric acid, oleum or other sulphonating agent.  The isolation and purification of the product may be simultaneously effected by careful dilution of the sulphonation melt with water until the product is precipitated.  In an example, 1-amino-4-anilidoanthraquinone-2-sulphonic acid in monohydrate is treated with oleum at room temperature and poured into a limited quantity of water; the precipitate is then treated with brine solution.  It dyes wool blue shades from an acid or neutral bath. Reference has been directed by the Comptroller to Specification 27187/07, [Class 2, Acids and salts, Organic &c.].
Patent GB-1341480-A (GB)
Title: Contactor for three-phase load
IPC: H03K17/725
Filed: 1971-04-19
Abstract: 1341480 Switching systems for three phase supplies; protective arrangements RHEINISCHWESTFALISCHE ISOLATOREN-WERKE GmbH 19 April 1971 [19 March 1970] 24548/71 Headings H2H and H2K A contactor for a three phase star connected load 1, 2, 3 comprises three triacs Tr 1 , Tr 2 , Tr 3 , the control electrodes G 1 , G 2 , G 3  of which are connected via respective resistors R 1 , R 2 , R 3  to a point P 2  connected to a neutral conductor MP via a normally closed switch S 2 . A normally open switch S 1  is connected in parallel with a selected one of the triacs so that momentary closure of the switch S 1  causes that triac, the phase supply to which is passing through zero, to conduct. For example, assuming the triac Tr 1  to conduct at this instance, the triac Tr 2  is then rendered conductive before the triac Tr 1  is switched off when its phase supply passes again through zero. Similarly the triac Tr 3  then conducts before the triac Tr 2  switches off, the contactor remaining ON until the switch S 2  is momentarily opened. In the event of a short circuit in one of the load windings 1, 2, 3, a triac Tr 4  is fired thereby interconnecting the points P 1 , P2 and preventing firing of the triacs Tr 1 - Tr 3 . The triac Tr 4  may be replaced by a diac.
Patent GB-481509-A (GB)
Title: Improvements in or relating to valve apparatus for use in distributing fluid
IPC: F16K11/16
Filed: 1936-09-09
Abstract: 481,509. Lifting - jacks. LAKE & ELLIOT, Ltd., BARRETT, H. R., and BROOKES, W. Sept. 9, 1936, No. 24602. [Class 78 (iii)] [Also in Group XXIX] Valve apparatus for distributing liquids comprises four ball valves 14, 15, 18, 19, the upper two of which control separate outlets. Liquid under pressure, from a pump for example, enters at a port 5. A shaft 24 is ormed with cams 22<1>, 23 having three convex sides, Fig. 2, adapted to actuate tappet rods 10, 11 with a lag of 180‹. In the position shown valve 15 is raised to allow liquid in chamber 3 to escape at the port 12 by way of a passage 25. The valves are urged outwards by a strong inner helical spring 20 and a weak outer spring 21, so that valve 19 is pressed on its seat. If then, the pump is operated liquid forces open .the valve 18 against the spring 21 enters the chamber 2 and passes out by the corresponding duct 13, Fig. 2. When the pressure ceases ball 18 returns to its seat. When it is desired to evacuate the pressure liquid the shaft 24 is rotated to raise the rod 10 and valve 14 and the liquid escapes by the port 12. To deliver pressure fluid along both ducts 13 the shaft 24 is turned to a position in which both valves 14, 15 are closed. The device is specially intended for use with lifting jacks for vehicles and may be used to actuate the jacks attached to either axle or both, and either simultaneously or successively. The chambers 2, 3, may be placed at an angle, Fig. 4, in which case separate inlets 6 will be necessary. In the position of parts shown in the Figure liquid can pass from the inlets 6 through the valves 18, 19 and by the ports 13, 131 to both sets of jacks which will all be lowered. If the cam 28 be turned clockwise the jacks connected to 13 will be raised and then those connected to 13<1>.
Patent GB-458196-A (GB)
Title: A new or improved clamp for scaffolding
IPC: E04G7/08
Filed: 1935-09-04
Abstract: 458,196. Scaffold clamps. SCAFFOLDING (GREAT BRITAIN), Ltd., and JONES, D. H., 344, South Lambeth Road, London. Sept. 4, 1935, No. 24658. [Class 20 (ii)] A clamp for connecting together two scaffold members e, f in parallel and side-by-side relation comprises a U - shaped metal member a adapted to receive the scaffold members and having lateral recesses in corresponding side edges of its arms a2, a<3> for the reception of a cross-member d which extends between the arms and is adapted to engage the adjacent scaffold member f, and a clamping-device provided in the semi-cylindrical part of the member a is adapted to press the two scaffold members against each other and against the cross-member d. The clamping- device is in the form of a screw c received in a threaded boss b which may be integral with, or attached to, the member a. The cross-member d consists of a bar having a central portion d<1> of rectangular cross-section and two reduced ends d<2>, d<3> which have curved surfaces d<4> to correspond with the curvature of the lateral recesses in the side edges of the arms a<2>, a<3>. The inner surface of the cross-member d is provided with a central arcuate recess d<5> adapted to engage the scaffold member f. It is stated that the invention enables a coupling member as described in Specification 444,215 to be used, not only for connecting together angularly-arranged scaffold members, but for connecting such members when arranged in parallel and side-by-side relation.
Patent GB-680784-A (GB)
Title: Composition and method for the dewooling of sheepskins or the dehairing of skins
IPC: C14C1/06
Filed: 1950-10-10
Abstract: 680,784. Dehairing skins. ZALCMAN, H. Oct. 10, 1950. [Oct. 18, 1949] No. 24727/50. Drawings to Specification. Class 76. A composition to be applied as a paint for dehairing skins, especially for the removal of wool from sheepskins, comprises a mixture containing about 2-30 per cent calcium hydrosulphide, about 33-1 per cent lime, and water, with the addition as necessary of an inert filler, e.g. kaolin, to give the required consistency. A preferred composition contains 7 per cent calcium hydrosulphide, 14 per cent lime, 6 per cent kaolin, and 73 per cent water. The composition may be brushed or sprayed on to the flesh side of the skin, left for 24 hours, and the wool or hair then removed.
Patent GB-698118-A (GB)
Title: Improvements in or relating to sweetening virgin petroleum fractions
IPC: C10G27/04
Filed: 1950-10-10
Abstract: Virgin petroleum fractions are sweetened by intimate contact with a gas containing free oxygen and with an aqueous solution of an alkaline agent containing a small amount of an emulsifying agent, the operation being conducted in the presence of a small amount of extraneously added petroleum phenols as a catalyst.  The process may be applied to substantially saturated gasoline, naphtha, heating oil and kerosene fractions obtained by distillation of the original crude oil.  The alkaline agent is usually an alkali metal hydroxide, but alkali carbonates, cyanides and bisulphites and organic amines and quaternary ammonium compounds may also be used.  Using alkali metal hydroxide, concentrations between 0.5 and 10 per cent by weight, preferably 2 per cent by weight may be employed.  Suitable emulsifying agents include alkali metal salts of fatty acids containing ten or more carbon atoms in the chain, sulphates of aliphatic alcohols of twelve or more carbon atoms in the chain, sulphonates of alkylated benzenes, soaps of rosin acids and the condensation products of oleyl alcohol with ethylene oxide.  The rosin soaps are preferred.  The emulsifying agent may be used in amounts from 0.05 to 1.0 per cent by weight in the aqueous phase. The amount of petroleum phenols used may vary from 0.05 to 0.5 per cent by weight in the oil phase.  The concentrations of alkali and emulsifying agent may be chosen such that the emulsion is broken on lowering its temperature by 10 DEG  to 50 DEG  C.  If desired, additional electrolyte such as sodium chloride may be added to cause salting out of the emulsifying agent and consequent breaking of the emulsion.  The aqueous layer may be recycled if the process is operated on a batch basis, but it is preferred to operate continuously, using heat exchangers.  The example describes comparative sweetening processes of a virgin naphtha (B.P. 125 to 200 DEG F) at 50 DEG C using various concentrations of sodium hydroxide, 0.2 per cent of petroleum phenols and differing amounts of sodium rosinate and various commercial products as the emulsifying agent.
Patent GB-1150763-A (GB)
Title: Improvements in or relating to Container Handling Machines
IPC: B67C3/22
Filed: 1966-06-03
Abstract: 1,150,763. Bottling; capping bottles. SEITZWERKE G.m.b.H. 3 June, 1966 [5 June, 1965], No. 24757/66. Heading B8T. [Also in Division F2] In a rotary-table bottling or bottle-capping, &c. machine having a tank 19 and a table 20 journalled for rotation about a fixed housing 14 within which a rod 15 is keyed for axial sliding when the tank is raised, &C relatively to the table, so that the machine may accept bottles of different heights, a rubber, &c. gaiter 25 is fast with the tank and the table. The gaiter 25 is connected through a pipe 26 with a flexible tube-shaped reservoir 27, and protects bearings 17, 24 journalling the tank 19 and the table 20 about the rod 15. When the tank 19 is raised, &c, relatively to the table 20, air is drawn into &c. the gaiter 25 from the reservoir 27. Rotation of a worm 11 and worm wheel 12 screws a threaded end 16 of the rod 15 up-and-down, to adjust the height of the tank 19 from the table 20. Circumferentially-arranged telescopic struts and springs 22, 23 support the weight of the tank 19 on the table 20.
Patent GB-649877-A (GB)
Title: Improvements in the treatment of yarn comprising filaments of a synthetic linear polymer
IPC: D06M13/148
Filed: 1948-09-22
Abstract: Yarn comprising filaments of a synthetic linear polymer is treated to hinder or prevent the formation (or promote the dissipation) of charges of static electricity by applying a solution of sodium chloride in a hydroscopic liquid polyhydroxy aliphatic organic compound boiling above 200 DEG  C.  Polyhydroxy compounds specified are diethylene glycol and glycerol, with or without the addition of water.  The synthetic linear polymer may be polyhexamethylene adipamide, polytetramethylene adipamide, polyoctamethylene adipamide, polydecamethylene adipamide, polyhexamethylene sebacamide, polypentamethylene sebacamide, polyethylene glycol terephthalate, or polytrimethylene glycol hexadecamethylene dicarboxylate; interpolymers, such as that from hexamethylene diammonium adipate and hexamethylene diammonium sebacate, may also be used.  Fungicides such as salicylanilide, anticorrosion agents such as sodium nitrite, and surface active compounds such as sulphated fatty alcohols may also be added.
Patent GB-235446-A (GB)
Title: An improved thong cutter
IPC: C14B5/04
Filed: 1924-10-18
Abstract: 235,446. Edwards, J. R., and Edwards, C. M. Oct. 18, 1924. Stationary -cutter apparatus.-A disc of leather is cut into a thong by a knife E, which may be a safety-razor blade, held by a clamp D to a support adjustable by screws H on a frame B. A guide F contacting with the upper surface of the leather is adjustably mounted by screws K. The disc is guided by a chamfered face on the clamp D.
Patent GB-1592543-A (GB)
Title: Magnetic closure device for an artificial bowel outlet
IPC: A61F5/445
Filed: 1978-05-31
Abstract: The magnetic closure comprises an annular magnet (3) to be implanted on the artificial intestinal outlet and a plug (4) of a permanently magnetic or low-retentivity material for closure purposes. The plug (4) is exchangeably arranged in a sheath (5) made of an open-cell polyvinylacetal foam whose inner surface is preferably provided with a water-repellent silicon finish. The plug (4) advantageously has an axial central opening (7) and a return thread (8). <IMAGE>
Patent GB-1502382-A (GB)
Title: Moulding machine
IPC: B29C39/16
Filed: 1975-06-10
Abstract: 1502382 Moulding machine KORNYLAK CORP 10 June 1975 [25 June 1974] 24819/75 Heading B5A A moulding machine comprises endless belts 1, 2 providing a moulding zone 20, e.g. for foam material, movable towards and away from each other, fluid expansible chambers 23 on each side of the zone and drivingly connected between the belt supports 12, 22, spacers 31 between the supports and on each side of the zone and means for supplying fluid to the chambers to clamp the spacers between the supports and provide a minimum spacing between the belts. Means are also provided for sensing the near engagement of the spacers and to prevent the clamping pressure being applied when the sensing means indicates there is not said near engagement. The belts comprise hinged metal plates with guide and supporting rollers 14, 16, 18 on stationary tracks; the sides of the zone are enclosed by separate endless conveyers or by rigid side walls 21. Each spacer is vertically adjustable on the support 22 and has a pin 36 co-operating with a micro-switch 35 forming part of a fluid control circuit. The latter is operable so that initially the belts are brought together by gravity under the control of check valves and restrictive orifices whereby the flow of fluid from the chambers 23 is controlled. When all the switches have been operated fluid is supplied to the chambers to provide a moulding pressure. Should an obstruction, during moulding, cause one of the conveyers to yield, the moulding pressure is relieved; on substantial overload the conveyers are separated by the feeding of fluid to the chambers.
Patent GB-846637-A (GB)
Title: Improvements in or relating to container-dispensers
IPC: A46B17/04
Filed: 1958-08-01
Abstract: 846,637. Screw caps. KATZ, P. Aug. 1, 1958 [Aug. 27, 1957], No. 24843/58. Class 125(3). [Also in Group XXIII] Enclosing the bristles of a bristle-tufted, bored plug 13 inserted into the neck of a squeeze bottle 10 having an externally threaded neck 11 joined by a curved shoulder S to the main cylindrical body portion B of the bottle is a resilient, plastics cap 19 having an internal thread 23 for engaging that on the neck of the bottle and an outwardly flared skirt 21. The skirt embraces any outwardly flaring bristles and causes them to be gathered together when the cap is screwed on to the bottle neck. When the cap is correctly screwed on to the bottle the skirt engages and seals against the shoulder of the bottle. Any attempt to screw the cap too far down with possible stripping of the threads of the neck and cap results in outward distension of the skirt and temporary disengagement of the threads so that the cap can slide up the neck by a distance of a thread or more before the threads re-engage.
Patent GB-1509079-A (GB)
Title: Preparation of carboxylic acids from organic halides
IPC: C07C63/10
Filed: 1975-06-10
Abstract: 1509079 Preparation of carboxylic acids MONTEDISON SpA 10 June 1975 [11 June 1974] 24870/75 Heading C2C  The invention relates to a process for the preparation of a carboxylic acid in which an aromatic or aliphatic organic halide, which may be substituted by groups inert to the reaction conditions, is reacted at a temperature of from 50 to 150‹ C. with carbon monoxide in the presence of a phosphine palladium complex catalyst of the formula (a) Pd[PR 3 ] m  in which m is 2, 3 or 4 and each R may be the same or different and represents a phenyl, substituted phenyl, alkyl or substituted alkyl group, (b) Pd[R 3 P-(CH 2 ) n -PR 2 ] p  in which R is as defined above, p is 1 or 2 and n is an integer from 1 to 6, or (c) (PR 3 ) 2 Pd(Y) 2  in which each R is as defined above and Y represents a halogen atom and/or an aryl group, and a quaternary alkyl-ammonium salt, the process being conducted in a two liquid phase consisting (i) of the organic halide and of the catalytic palladium complex of of their solutions in at least one hydrocarbon solvent immiscible with water, and (ii) of an aqueous inorganic alkaline solution containing the quaternary alkylammonium salt. The following compounds are prepared in the examples:- Benzoic Acid, p-Bromobenzoic Acid, 3,5-Dichlorobenzoic Acid, 1-Naphthoic Acid, Phenylacetic Acid, Valeric acid, and Cinnamic Acid.
Patent GB-1190431-A (GB)
Title: Improvements in or relating to Vehicle Wheels
IPC: B60B25/18
Filed: 1967-05-30
Abstract: 1,190,431. Vehicle wheels. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS. MICHELIN). 30 May, 1967 [27 May, 1966], No. 24954/67. Heading B7C. In a wheel rim having a removable bead seat ring 12, held in place by a split ring 5 located in a groove in the rim base 4, the bead seat ring carries keys 9, 9<SP>1</SP> each arranged so that rotation of the bead seat ring in one direction relative to the base 4 moves the key into engagement with a key 7, 7<SP>1</SP> on the ring 5, forcing the ring 5 into tight engagement with the base 4 by a wedging action and thereby locking the rings against further rotation. An additional key (12) (Figs. 4, 5, not shown) may be welded to the rim base 4 in the gap between the ends 11 of the split ring 5.
Patent GB-926045-A (GB)
Title: Improvements in or relating to high pressure mercury vapour electric discharge lamps
Inventor: JENKINS HENRY GRAINGER
IPC: H01J61/96
Filed: 1959-07-21
Abstract: 926,045. Fluorescent discharge lamps. GENERAL ELECTRIC CO. Ltd. July 19, 1960 [July 21, 1959], No. 25011/59. Class 39 (1). [Also in Group XI] A high-pressure mercury vapour-argon discharge lamp, particularly a fluorescent lamp, has a discharge envelope 4 of quartz or hard glass mounted within an outer jacket 1 which also contains a coiled tungsten filament 23 enclosed within an envelope 22 of quartz or hard glass containing a filling of inert gas, such as argon at a pressure of 550-650 mms., and a regenerative getter for tungsten vapour, such as iodine vapour. The pressure of the iodine vapour is 1-30 mms. at 100‹ C. The envelopes 4 and 22 can be mounted parallel to each other or end to end. The filament 23 is connected at its ends to tungsten rods 24 and is supported by tungsten wires 27. The filament 23 and the discharge path are connected in series with external terminals, the filament acting as a ballast for the discharge. The supporting framework 5 for the envelopes 4 and 22 is used for conveying current to the electrodes 10 and filament 23. The outer jacket 1 can contain a current uniting means for the filament 23 during starting, such as a thermistor or a resistor 30 with a short-circuiting semi-conductor switch or a bi-metallic switch 33. The outer jacket 1 is provided on its inner surface with a layer of one or more phosphors such as magnesium fluorogermanate activated by manganese or strontium-magnesium orthophosphate activated by tin. The outer jacket 1 is evacuated or contains nitrogen at a pressure of about 200 mms. The electrodes 10, Fig. 2, each consist of a tungsten rod 11, a slot in the rod containing a pellet 12 of electron-emissive material held in position by a tungsten wire helix 13. An auxiliary electrode 19 is provided in the envelope 4 and is connected to a resistor 21.
Patent GB-470048-A (GB)
Title: Device for making a tie knot
IPC: A41D25/04
Filed: 1936-09-14
Abstract: 470,048. Neckties. RAMAS, J. F. Sept. 14, 1936, No. 25083. Convention date, Sept. 12, 1935. [Classes 43 and 141] A device for making a tie knot outside a collar, and subsequently allowing it to be placed in position comprises a pair of rings a, Fig. 8, through which the ends e,f of the tie are passed before making the knot, the rings being permanently attached to a connecting member which extends around the rear of collar, and is in the form of an extensible cord b on which the rings a are freely threaded. The cord b comprises a continuous single loop of material folded back on itself. In a modification, Fig. 1, the connecting member comprises a single length of extensible cord b, the ends of which are formed as loops d for receiving the rings a. The shape of the rings through which the ends of the tie are passed may take various forms.