baber/WOPTO huggingface dataset:
Patent GB-736595-A (GB)
Title: Improvements in and relating to the production of alginate fibres, filaments, threads, fabrics, ribbons and the like
Inventor: BRADSHAW SAMUEL NELSON
IPC: D01F9/04
Filed: 1952-08-19
Abstract: Artificial fibres, filaments, threads, fabrics, films, ribbons and the like of alginic acid, or of a water-insoluble alginate/alginic acid mixture, are exposed to the action of gaseous ammonia, or a gaseous alkyl amine such as mono-, di- or tri-methylamine.  The treatment may be controlled so as to produce materials of desired degrees of water-solubility.  The treated materials may be used as water-soluble wrapping materials or used in surgery.  Water-insoluble alginate filaments may be treated with an acid such as hydrochloric acid to convert the whole or part of the alginate to alginic acid. Alginic acid filaments so obtained may be treated with a solution of a salt of a metal which forms a water-insoluble alginate so as to obtain filaments of a water-insoluble alginate/alginic acid mixture. In an example, calcium alginate fabric is treated successively with a 3 per cent, a 2 per cent and a 1 per cent solution of hydrochloric acid.  The alginic acid fabric is washed, and dried on a stenter. It is then suspended in a chamber on the floor of which is placed a vessel containing 0.88 ammonia solution, and is exposed to the gaseous ammonia for 60 hours.  The fabric so treated is soluble in water.  In another example calcium alginate fibres are treated with hydrochloric acid solution to convert the alginate into alginic acid. Samples of the alginic acid fibres are placed in three sacks and exposed for 24 hours to the vapours of mono-, di- and tri-methylamine respectively.  Specification 653,341 is referred to.
Patent GB-829412-A (GB)
Title: Improvements in aerials
Inventor: BROWN ERIC VICTOR DOUGLAS
IPC: H01Q1/12
Filed: 1956-07-05
Abstract: 829,412. Clip fastenings. BELLING & LEE Ltd. May 17, 1957 [July 5, 1956], No. 20823/56. Class 44 [Also in Group XL(c)] An aerial includes two members 1, 4 secured together by a clip 5 of resilient material carried by one member and having two arms 6, 7 for clamping on opposite sides of the other member, at least one of the arms having a protuberance capable of being maintained by the resilience of the clip against a complementary surface on a side of the other member to prevent rotation of that member relative to the clip. As shown two protuberances 8, 9 of triangular cross-section are provided which engage grooves 2, 3 in the member 1 to prevent its rotation. A pin 13 with enlarged heads 14, 15 at each end passes through apertures in the clip, the member 1 and the member 4, so that the two members are attached together before the member 1 is engaged with the clip, for ease of packing, stocking and the like. The clip can be modified for use with a member 1 of rectangular cross-section in which case the protuberances 8, 9 engage one face of the member. The members can be two parts of a high frequency aerial such as a television aerial and in such a case the clip can be the insulator of a dipole. The clip is made of polythene, nylon, polyvinyl chloride, rubber or like material.
Patent GB-1421962-A (GB)
Title: Process for the preparation of unsaturated dinitriles
IPC: C07C253/00
Filed: 1973-05-02
Abstract: 1421962 Unsaturated dinitriles PHILLIPS PETROLEUM CO 2 May 1973 [3 May 1972] 20875/73 Heading C2C Unsaturated dinitriles are obtained by reacting unsaturated mononitriles of the formula where R and R<SP>1</SP> are hydrogen atoms or alkyl, cycloalkyl or aryl hydrocarbon radicals, with olefins containing the grouping in which the double bond is free from cyanide substituents, in the presence of monoadducts of olefins and unsaturated nitriles. 5-Methyl-5-hexenenitrile is prepared by reacting acrylonitrile and isobutylene.
Patent GB-1056453-A (GB)
Title: Improvements in electrical signalling systems
Inventor: LAKHANI AZIZUDDIN HASHIM ISMAI
IPC: H04L1/12
Filed: 1963-05-24
Abstract: 1,056,453. Data transmission. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. May 19, 1964 [May 24, 1963], No. 20882/63. Heading H4P. In a system in which the transmission of data is dependent upon the transmission of a continuous signal from the receiver, the receiver can start the transmitter by sending the signal for a pre-set period, whereupon the transmitter sends a synchronizing signal which is longer than the pre-set period. Data is then transmitted when the continuous signal is received. In the embodiment described the continuous signal is an RQ single frequency tone, the absence of which initiates repetition. Spurious pulses of RQ tone do not start the transmitter.
Patent GB-1209703-A (GB)
Title: Temperature-to-current transducer system and circuit
IPC: G01K7/20
Filed: 1968-05-02
Abstract: 1,209,703. Automatic voltage and current regulation. MONSANTO CO. May 2, 1968 [May 2, 1967], No.20962/68. Headings G3R and G3X. [Also in Division G1] A D.C. current/voltage regulator 40 Fig.2 is arranged to provide a constant current on lead 52 and a constant voltage on lead 50 to energize a bridge and amplifier from a D.C. voltage source on leads 28, 30. The supply voltage establishes a constant voltage across Zener diode D3 which is compared in a differential amplifier comprising transistors Q3, Q4 with the voltage across resistor R6, any difference being fed to a Darlington pair Q5, Q6. The current from the emitter of transistor Q6 counteracts any voltage changes across resistor R6 to maintain a constant current through it and along lead 52. The constant voltage across D3 produces a constant current through transistor Q1 and series resistors R11, R13. Their junction is connected to a Darlington pair Q7, Q8 which establish a constant voltage on lead 52.
Patent GB-394498-A (GB)
Title: Process for purifying sugar factory and refinery juices
IPC: C13B20/02
Filed: 1932-07-25
Abstract: Colloidal matter is separated from sugar juices by the addition of lime or equivalent alkaline substances sufficient to attain the optimum isoelectric point of the colloids in the alkaline region (in the case of sugar beet, a region corresponding to a pH valve between 10,6 and 12).  The juice is then filtered and submitted to one or more carbonatations by the addition of lime or the equivalent followed by addition of carbon dioxide and subsequent filtration.  An example is given in which the amount of lime added is 0,15-0,3 per cent (calculated on the amount of juice), and if necessary after a preliminary filtration more lime may be added to make the total addition up to 0,7-1 per cent.  Heating of the juice may take place between the operations.  Specification 351,160 is referred to.
Patent GB-204459-A (GB)
Title: Improvements in cameras
IPC: G03B17/17
Filed: 1922-08-02
Abstract: 204,459. Norton, A. E. Aug. 2, 1922. Magazine cameras fitted with means for treating negatives.- A ferrotype camera is fitted with a reflecting prism 1, Fig. 2, and a lens and shutter 2 in a recess at the top of the camera, the sensitized cards or tintypes 11 being arranged horizontally and being transferred after exposure to a tank 4. The sensitized cards are arranged on a spring 12 in a box 9, Figs. 1 and 2, pivoted on a block 10 which can be moved up and down by means of links 15, 16 operated from a threaded rod 18 by means of an external handle, a pointer 25 and scale 26 being provided on the outside of the camera. Focussing takes place on a removable cover 14 of the box 9 and is viewed through an aperture 22 which can be closed light-tight by means of a divided ring 23 carrying a sleeve 24.
Patent GB-1490899-A (GB)
Title: Float-operated reciprocating machine
IPC: F03B17/02
Filed: 1975-05-19
Abstract: 1490899 Buoyancy motor F MACLARN FINLAY 19 May 1975 21123/75 Heading F1S A buoyancy motor is motivated by the rising and falling action of a float 37 in a first liquid chamber 3 and inter-connected with a bucket 38 adapted to lift liquid to a predetermined height from a second chamber 5 when the float 37 descends due to the liquid level in chamber 3 falling, the bucket 38 tipping out the liquid at the predetermined height into the chamber 3 via a chamber 6 so that the float 37 rises again and the bucket 38 is lowered back into chamber 5. The float and bucket are inter-connected by lines 39, 91 and a rack-and-pinion mechanism 7 from which an output drive may be taken. The mechanism 7 may connect a member of floats to a number of buckets.
Patent GB-651595-A (GB)
Title: Improvements in machine tool attachments for profile machining non-circular shapes
IPC: B23Q35/10
Filed: 1948-08-11
Abstract: 651,595. Attachments for milling and turning. LUCAS, S. Aug. 11, 1948, No. 21157. [Class 83 (iii)] Apparatus for attachment to a milling- machine or lathe for profile machining multilobed moulds and dies or other non-circular work-pieces comprises a power-driven rotary table c secured on a slide d which is guided on a traversing table c of a milling-machine, or on a vertical traversing table in place of the headstock face-plate of a lathe, Figs. 5 and 6 (not shown), by means of a power-driven rotary cam also mounted on the table c, the follower j of which actuates a link l connected to the slide d, the cam being rotated at a speed which is a multiple of that of the rotary table. The table e and cam # are driven respectively by telescopic shafts g<SP>1</SP> and g<SP>2</SP> from a power-driven gear-box g, the cam being rotated by a worm h through a gear-box i comprising change wheels. The cam may have a contour on its upper face operatively connected to the cutter head b to reciprocate the latter to effect contouring of the work-piece. A non-rotary cutter may be used. In a modification, the link l is replaced by an adjustable pantographic linkage. According to the Provisional Specification, the rotary table and cam can be driven by an electric motor independent of the drive for the milling machine.
Patent GB-922180-A (GB)
Title: Improvements in or relating to method and device for manufacturing footwear articles
IPC: B29D35/06
Filed: 1959-06-23
Abstract: 922,180. Making shoes. R. FARRAUD. June 23, 1959 [Feb. 29, 1959; May 29, 1959], No. 21441/59. Class 17 (2). [Also in Group V] Footwear articles, more particularly slippers, are made by placing an upper 12 and insole 13 on an intermediate sole 11, e.g. of jute or felt, over the base of which is an outer sole 10, e.g. of hide, projecting laterally so as to delimit when inserted into a mould, together with the upper 12, intermediate sole 11 and side mould plates 5, 6, a peripheral groove 15 into which plastic material in plastisol form, e.g. polyvinyl chloride plastisol, is injected. The outer sole 10 may, if desired, extend over the joint between the sole mould plate 1 and the side mould plates 5, 6, as shown in Fig. 2, or merely cover the sole mould plate 1. Heating members 9 are provided which, owing to their position, heat only the side of the sole assembly so that the outer sole 10 is but slightly heated. As shown in Fig. 4, the side mould plates may be supported on a base plate 16 by wedges 19 of small surface area so as to provide a space 20 enabling air to circulate. In addition, the sole mould plate 1 may be provided with channels 21 in which a cooling liquid circulates.
Patent GB-704388-A (GB)
Title: Manufacture of unsaturated aldehydes
Inventor: HADLEY DAVID JAMES
Filed: 1950-09-01
Abstract: Unsaturated aldehydes are obtained by the catalytic oxidation of olefines in a continuous manner which comprises conducting the olefine in the vapour phase with molecular oxygen at elevated temperatures in the presence of elementary selenium in the reaction zone over a solid contact material, comprising copper compounds, in a recycle system, branching-off a fraction of the gaseous mixture leaving the reaction zone and recovering from this fraction the aldehyde contained therein, after which the aldehyde-free fraction of the gaseous mixture is vented, and returning the remainder of the gaseous mixture with the aldehyde contained therein to the entry side of the reaction zone after oxygen, olefine, diluent and selenium have been replenished.  In the example isobutene and air are passed over a heated selenium reservoir and then into a reactor containing a copper silicate catalyst according to the process described above to give methacrolein.  Specifications 694,362 and 695,028 are referred to.
Patent GB-243831-A (GB)
Title: Improvements in or relating to road-making materials
IPC: C04B28/04
Filed: 1924-09-12
Abstract: 243,831. Batten, G. B. Sept. 12, 1924. Compositions containing bitumen and siliceous, calcareous, and like materials.-A composition to be added to liquified asphalt, pitch, &c. consists of 6-9 parts of Portland cement or other powdered filler, 0.5-2 parts of chalk or cockle shell, 0.5-1 parts of breeze, 0.65-1.7 parts of bitumen, 0.1-0.3 parts of asbestos, and 0.1-0.25 parts of soda. The bituminous material to which the composition has been added may be used either as a binder for the usual aggregates used in making roads, as a surface dressing for existing roads, or as a filling between sets or paving blocks. When it is used as a surface dressing a light-coloured material such as chalk may be subsequently applied.
Patent GB-1100875-A (GB)
Title: Electrical contact units
IPC: H01H1/24
Filed: 1965-05-21
Abstract: 1,100,875. Springs. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 21 May, 1965 [26 May, 1964], No. 21594/65. Heading F2S. [Also in Division H1] An electrical contact unit includes a first contact element which is movable towards or away from a second contact element, wherein the first contact element is formed from a metallic strip or wire coiled into a helicoidal form with the adjacent turns of the helicoid in contact with each other, the turns of the helicoid being pre-stressed in such a way that after coiling the adjacent turns of the helicoid are urged against each other and the pre-stressing of the turns creates a condition in which stresses are present in the strip or wire which oppose stresses on the strip or wire due to movement thereof. The pre-stressing may be by imparting a twisting action to the strip or wire before it is coiled. The first contact element may be secured at one end to a block, and may comprise several helicoids wound from one piece of wire and separated by straight portions of the wire or a metallic ribbon coiled with its turns overlapping. The turns may be wound on a central wire. The first contact element is at right-angles to the second contact element which may comprise a wire helicoid, two strips with sloping portions to their edges arranged adjacent to each other to form a notch, two wires crossed to form a notch, or two concentric interleaved wire helicoids. In these three latter cases if the two strips or wires are insulated from each other, the first contact element acts as a bridging contact. The contact surfaces may be plated with a noble metal (unspecified).
Patent GB-382650-A (GB)
Title: Process for the purification of combustible gases from hydrogen sulphide
IPC: C10K1/20
Filed: 1931-07-29
Abstract: 382,650. Gas-purifying processes. SZIGETH, G., Homokos d³lo, Budapest. July 29, 1931, No. 21625. Convention date, June 1. [Class 55 (ii).] In the dry purification of gases from sulphuretted hydrogen, the gases are diluted before admission to the purifier, with combustible gases poor in sulphuretted hydrogen, such as the gas already purified. A suitable gas for purification contains about 1 per cent sulphuretted hydrogen.
Patent GB-1480200-A (GB)
Title: Anthraquinone compounds
IPC: C09B1/22
Filed: 1975-05-20
Abstract: 1480200 Dinitroanthraquinones NIPPON KAYAKU KK 20 May 1975 [24 May 1974 (2)] 21635/75 Heading C2C [Also in Division C4] A mixture of 1,6- and 1,7-dinitroanthraquinones (containing the 1,5- and 1,8-dinitro compounds as impurities) is obtained by nitrating anthraquinone with nitric acid, cooling to precipitate 1,5- and 1,8-dinitroanthraquinone, filtering to remove the 1,5- and 1,8-dinitro compounds, stirring and cooling the filtrate and adding water thereto to precipitate the product.
Patent GB-864033-A (GB)
Title: Photo-lithographic plates and coating compositions therefor
IPC: G03F7/04
Filed: 1957-07-09
Abstract: 864,033. Light sensitive composition for photomechanical procedure. HARRIS-INTERTYPE CORPORATION. July 9,1957 (Aug. 21, 1956], No. 21710/57. Class 98(2) A water-soluble linear copolymer of an alkyl vinyl ether and a maleic anhydride compound includes an ingredient providing hexavalent chromium in solution. The alkyl radical may be methyl, ethyl or propyl and the reactant compound maleic anhydride itself or this treated with ammonia, alkali hydroxide, an alcohol or a water soluble amine. The composition may be coated, exposed and processed to make lithographic plates in the manner used in gumbichromate procedure, but the coatings do not deteriorate to the same extent and plates prepared therefrom are regarded as "presensitised". In Example 1 a prepared aluminium plate is whirl-coated with aqueous methyl vinyl ether/ maleic anhydride copolymer containing ammonium dichromate, dried, exposed behind a negative for two to three minutes, treated with a polyvinyl chloride or acetate lacquer, developed in water, desensitised and gummed and is then ready for mounting in a press. Example 2 is the same except that maleic anhydride half amide is used in the copolymer and the lacquer treatment is omitted. Uses as for photoengraving procedure and stencil production are referred to as well as lithographic applications.
Patent GB-335307-A (GB)
Title: Spinning centrifuges for artificial silk
IPC: B04B9/12
Filed: 1929-07-16
Abstract: 335,307. O'Dell, A. E., (Berlin-Karlsruher Industriewerke Akt.-Ges.). July 16, 1929. Casing.- In centrifuges for spinning artificial silk, the bell 15, which is mounted on the rotating part to prevent ingress of acid to the bearings, is so shaped that it only comes into close proximity with the cap 12 along one line and that the space between them widens suddenlv from the periphery towards the middle. The shaft 1 carrying the motor armature 10 is united to the spinning- can shaft 2 by a flexible coupling 9 and the composite shaft may be mounted in bearings 3 - - 6, the upper bearings being resiliently mounted in rubber rings 7.
Patent GB-654197-A (GB)
Title: Improvements in, or relating to, industrial furnaces
IPC: F27B1/02
Filed: 1948-08-19
Abstract: 654,197. Furnaces; smoke preventing. GUEST, G. Aug. 19, 1948, No. 21869. [Classes 51(i) and 51(ii)] A furnace plant for recovering metal from scrap material without the production of smoke comprises a unit 1, having a combustion chamber 6 communicating with a stack 11, and additional units 2, 3 and 4 each having a combustion chamber 6 which communicates through a gas outlet 8 with a common flue 9 opening into the space 7 below the fire bars 5 of the unit 1. Each unit comprises an apertured partition 14 which supports a melting pot 15, and the units 2 and 3 are extended above the partition to form closed chambers 20 which communicate with the gas outlets 8 and flue 9 through passages 22, 23, Fig. 3; controlled by dampers 24. The unit 1 is also formed with a closed chamber 20 which communicates with the space 7. The combustion chamber of the unit 4 is fitted with a blower 19, and the stack 11 is provided with a coke filter 12. In use, smoke produced in the chambers 6 or 20 of the units 2-4 is consumed in the combustion chamber of the unit 1 which is fed with smokeless fuel. When the plant is used for recovering metal from scrap electric cable, the units 2 and 3 are used for burning off the insulating material, and the units 4 and 1 for melting the copper and lead sheathing respectively.
Patent GB-795630-A (GB)
Title: Improvements in or relating to dental syringe
Inventor: LOCHRIDGE EDWIN H
IPC: A61C5/62
Filed: 1956-07-16
Abstract: 795,630. Dental syringes. DENTAL PERFECTION CO. July 16, 1956, No. 21893/56. Class 81 (2). In order to avoid contact of metal with a patient's tooth and for more hygienic use, the nozzle of. a dental filling syringe is provided with a detachable plastic tip. In one form a cap 17, at the end of the syringe, has a fixed metal nozzle 20 and a plastic extension tip 22 is fitted over this and retained by a nut 24, which grips the tip against the tapered outer surface of the nozzle. In another form, the tip is retained by having internal threads which screw on to the nozzle while, in a third form, the tip fits inside the nozzle and is retained by a flange engaging an internal rim in the bore of the nozzle.
Patent GB-300699-A (GB)
Title: Improvements in and connected with ships' cabin or deck lights known as scuttles
IPC: B63B19/00
Filed: 1927-08-19
Abstract: 300,699. Stone & Co., Ltd., J., and Cotter, E., W. Aug. 19, 1927. Cabin lights.-Fastenings for ships' cabin lights comprise two or more screws k mounted on hinge pins l mounted on the fixed frame d the swing of the bolts being limited by co-operating stops m. The handled nut n working on the bolt controls a clip s sliding on the bolt, the clip being mounted on the nut p, q through inter-engaging collars and grooves o, r. The clip e is provided with a recess e which conforms to the shape of the bevel a on the frame of the glass holder which is pressed on to its seating c on the fixed frame when the bolt k is swung into vertical position and the nuts n tightened. The angle of the bevel on the ring is slightly steeper than the angle of the arc about which the bolt swings.
Patent GB-992134-A (GB)
Title: Improvements in or relating to tabletting machines having rotating die tables
IPC: B30B15/30
Filed: 1962-06-06
Abstract: 992,134. Rotating table tabletting machines. KILIAN & CO. G.m.b.H. June 6, 1962 [June 7, 1961], No. 21925/62. Heading B5A. A cavity filling shoe for a rotating table tabletting machine comprises an inclined plate which partially or wholly covers a filling chamber and presses filling material contained therein down into the cavity passing beneath. In a filling shoe, filling chambers 11, 12 and 13 are interconnected by staggered openings 17 and 18 which distribute laterally filling material from chamber 14. A cover plate 19 is pivoted at 20 and secured at the required inclination by clamping screw 22. As the table rotates material 23 is drawn up under the inclined edge 24, which may incorporate a pressure roller 26, and is thereby forced into the cavity in the direction 25. The cover plate 19 may be spring-loaded.
Patent GB-1160647-A (GB)
Title: Anti-Glare Shields
Inventor: DUDLEY RICHARD
IPC: B60J3/02
Filed: 1967-05-11
Abstract: 1,160,647. Sun-visors. VAUXHALL MOTORS Ltd. 2 May, 1968 [11 May, 1967], No. 21960/67. Heading B7J. A vehicle sun-visor comprises a moulded padding 3 surrounding an apertured non- metallic insert 2, said insert being provided with a projecting spindle 5 for pivotally engaging a non-metallic jaw 8 adapted to engage an aperture in a vehicle panel. The insert and jaw may be made of nylon or polythene and the padding 3 of polystyrene. The mouth of the jaw is biased to the open position but is closed in use.
Patent GB-170658-A (GB)
Title: Improvements in or relating to automatic controlling means for the ignition timing in internal combustion engines
IPC: F02P5/07
Filed: 1920-07-23
Abstract: 170,658. Edwards, C. K., Batty, D. E., and Associated Equipment Co., Ltd. July 23, 1920. Timing.-The time of ignition is varied according to the engine speed by means of a centrifugal governor 14, and also according to the position of the throttle 29, the preferable arrangement being such that as the throttle-valve is opened the ignition is retarded while the centrifugal governor produces an advance directly proportional to the engine speed. As shown, the governor 14 is linked to a lever 19, the opposite end 20 of this lever being adjusted by a cam 31 on the spindle of the throttle valve; an intermediate point on the lever is connected to the magneto interrupter. In a modification designed for coil ignition, the interrupter cam 49 is adjusted by the centrifugally-controlled masses 44; the interrupter-contacts are mounted on an adjoining disc, the angular position of which depends on the throttle opening. Retardation of the timing at starting is ensured by a linkage 39, 40 connected at one end to the starting-handle 37 and at the other having a lug 41 for engaging the lever 25.