baber/WOPTO huggingface dataset:
Patent GB-1098713-A (GB)
Title: Improvements relating to information transmission systems
Inventor: LANG GORDON RUSSEL
IPC: H04L25/49
Filed: 1966-07-14
Abstract: 1,098,713. Data transmission systems; transistor limiter circuits. FERRANTI Ltd. July 14, 1966 [July 16, 1965], No. 31751/66. Headings H3T and H4P. In a binary transmission system the bits are transmitted with polarity alternately positive and negative, each bit having a duration representing the bit sense. At the transmitter, binary data is read from a store under the control of read-out pulses of varying repetition frequency derived from an arrangement of gates and a counter fed by constant rate clock pulses and by the binary data. This arrangement provides a read-out pulse after a count of, say, 5 clock pulses when a binary 1 has been read out and after a count of 7 clock pulses when a binary 0 has been read out. The duration significant bits from the store are modulated such that their amplitude is inversely proportional to their duration, and after filtering are transmitted. At the receiver the signal is limited, differentiated and rectified to provide a spike at each bit transition. The spikes feed an arrangement providing signals representing the binary data to a store. The limiter comprises a three-stage transistor amplifier in which there is a feed-back loop from the emitter of the last stage to the base of the first comprising a parallel arrangement of inversely poled diodes in series with a capacitor. When a given voltage is exceeded the feed-back loop prevents further amplification.
Patent GB-467662-A (GB)
Title: Improvements in or relating to dyeing fibrous materials with vat dyestuffs
IPC: D06P1/92
Filed: 1935-11-16
Abstract: Vat dyes, dyeing with.--Fibrous materials, other than cellulose ester or ether textile materials, are dyed with vat dyestuffs with the addition to the vat of at least 20 per cent, based on the weight of the vat liquor, of a water-soluble organic substance acting in an aqueous medium as a solvent for the salt of the leuco base of the dyestuff.  Specified organic substances are ethyl and isopropyl alcohols, acetamide and acetone.  The following examples are specified: (1) cotton yarn is immersed for 10--15 minutes in an aqueous vat at 55--60 DEG  C. containing caustic soda, sodium hydrosulphite, Indanthrene brilliant violet RR and methylated spirit (10 litres per 10 litres of water present), the vat is then diluted with water to 100 litres with addition of more hydrosulphite, dyeing is continued for 15 minutes and the yarn is finally washed, oxidized, acidulated, boiled with soap and washed; (2) cotton yarn is immersed for 15 minutes in an aqueous vat as in (1) but containing smaller amounts of caustic soda, sodium hydrosulphite and dyestuff, squeezed, washed and developed as usual; (3) scoured or wetted cotton yarn is dyed as in (1) with the use, as dyestuff, of Indanthrene blue RSN and with the addition of part of the caustic soda with the additional hydrosulphite; (4) cotton yarn is immersed for 30 minutes in an aqueous vat at 50 DEG  C. containing caustic soda, sodium hydrosulphite, Indanthrene brown G powder and methylated spirit (10 litres per 10 litres of water present), squeezed, washed and developed as usual; (5) cotton yarn is similarly dyed with the use, as dyestuff, of Ciba red B; (6) wetted cotton yarn is immersed for 15 minutes in an aqueous vat at 55 DEG  C. containing caustic soda, hydrosulphite, Indanthrene brilliant violet RR and acetamide (10 kilos per 13 litres of water present), the vat is then diluted with water to 100 litres with addition of more hydrosulphite, dyeing is continued for 25 minutes and the colour developed as usual; (7) and (8) wetted cotton yarn is dyed as in (1) with the use of isopropyl alcohol and of acetone in place of the methylated spirit; (10) viscose artificial silk yarn is immersed for 15 minutes in an aqueous vat at 55 DEG  C. containing caustic soda, sodium hydrosulphite, Indanthrene marine blue G and methylated spirit (20 litres per 20 litres of water present), squeezed, washed and developed as usual. The Specification as open to inspection under Sect. 91 comprises also examples of dyeing scoured or wetted-out cotton yarn with (a) Indanthrene olive G with addition of methylated spirit to the vat and (b) Indanthrene brilliant violet RR with addition of pyridine to the vat.  This subject-matter does not appear in the Specification as accepted.
Patent GB-960878-A (GB)
Title: Improvements in or relating to the weaving of ribbons
IPC: D03D35/00
Filed: 1960-09-15
Abstract: 960,878. Ribbon selvedges. G. ROSCHER, and H. LINDNER. Sept. 15,1960, No. 31771/60. Headings D1E and D1K. Selvedge thread needles 2, 8 and weft inserting needles 6,10 form identical selvedges at both edges of a ribbon. At the stage shown, the needle 2 has inserted a loop of selvedge thread 3 through the looped end of a pick inserted from the right hand side by the needle 10; the left hand weft inserting needle 6 has passed through the loop of selvedge thread, and the pick laid by it has been penetrated by the right hand selvedge needle 8.
Patent GB-964180-A (GB)
Title: Improvements in or relating to dielectrically heated drying apparatuses through which the articles to be dried are continuously advanced
IPC: H05B6/78
Filed: 1961-09-05
Abstract: 964,180. Photo-electric detection. SVENSKA SOCKERFABRIKS A.B. Sept. 5, 1961 [Sept. 12, 1960), No. 31814/61. Heading G1A. [Also in Divisions H3 and H5] In apparatus for drying sugar cubes 32 (Fig. 1) by dielectric heating between an electrode 33 and a steel-belt conveyer 31, at least one photocell 62 may be mounted adjacent the uppermost end of a tube 38 leading to the hollow interior of the electrode. If an arc develops between the electrode and conveyer, the cell 62 actuates a relay 53a (Fig. 2) in the cathode circuit of a triode valve 20 in a high-frequency generator to which the electrode 33 is coupled. Actuation of the relay opens contacts 53 and introduces a resistor 63 into the cathode circuit. The tube 38 is made of lighttransmitting material.
Patent GB-654577-A (GB)
Title: A device for driving out pins, bushes and the like from articulated tracks, chains, and the like
IPC: B23P19/02
Filed: 1948-12-10
Abstract: 654,577. Rivet and bush extractors. AUKEMA, S. Dec. 10, 1948 No 32004.Convention date, Feb. 11. [Classes 61(ii) and 61(iii)] [Also in Group XXII] Means for removing pins and bushes from articulated tracks, chains and the like comprises a frame with a vertically adjustable table and ram means mounted upon the frame and adapted to carry and feed a punch, a sleeve being arranged upon said frame spaced from the punch and in axial alignment therewith. The frame 1 is provided with road wheels 2 and retractable jack supports 4. The punch 19 for removing track pins and bushes is hydraulically operated from a hand pump 16 and the track is drawn up over a work table 7 vertically adjustable on the frame by a handwheel 13 and screw and nut means 12, 14. A sleeve 21 fixed to the frame by a bracket 20 is in axial alignment with the punch 19 and holds up the work during the operation of the punch; the punch and sleeve are exchangeable with others of different dimensions. A hand-operated cable winch 23 is employed to draw the track up a portable ramp 22 which is arranged to extend out from the frame (at right angles to the plane of the paper).
Patent GB-932853-A (GB)
Title: Rubber reclaim oils
Inventor: BEAVEN ERNEST WALTER JAMES
IPC: C08J11/20
Filed: 1960-09-19
Abstract: A liquid hydrocarbon composition suitable for reclaiming rubber consists predominantly of a mixture of alkyl benzenes and a mixture of alkyl naphthalenes and has an aniline point of less than 15 DEG C. The alkyl benzene mixture may have a boiling range between 130 DEG and 300 DEG C. and the alkyl naphthalene mixture may have a boiling range between 175 DEG  and 300 DEG C.  Examples are concerned with mixing 30 or 20 parts by weight of a mixture containing butyl benzenes and tri- and tetra-methyl benzenes with 70 or 80 parts by weight of a mixture containing alpha-and-beta-monomethyl naphthalenes, 1,2, 1,6, 1,7 and 2,6 dimethylnaphthalenes, trinaphthalenes, acenaphthalenes, fluorene and naphthalene.ALSO:A liquid hydrocarbon composition for use in reclaiming vulcanized natural rubber and SBR consists of a mixture of alkyl benzenes and a mixture of alkyl naphthalenes and has an aniline point of less than 15 DEG C.  According to an example, old tyres from which the metal beads have been removed are comminuted, the comminuted scrap is digested by the composition at 200 DEG C. for 3-10 hr. to destroy tyre fabric and soften the rubber, the digested material is washed with water and then dried, the dried material is milled, pigments and further softeners being incorporated at this stage if necessary, is refined, and is finally sheeted.
Patent GB-255313-A (GB)
Title: An improved process for the production of artificial inorganicorganic tanning materials and an improved tanning process
IPC: C14C3/02
Filed: 1925-12-19
Abstract: 255,313. Dehn, F. B., (R÷hm, 0.). Dec. 19, 1925. No Patent granted (Sealing fee not paid). Mineral tanning; combination tanning processes.-Tanning solutions are formed by adding salts of heavy metals, for example ferric chloride or chrome alum, and alkalies, such as caustic soda, or alkaline salts, such as water glass, to soaps, such as potash olein soap, and another colloid or colloids, for example sulphite-cellulose extract. The proportions are such that in an acid solvent, for example hydrochloric acid, clear or colloidal solutions are formed.
Patent GB-717480-A (GB)
Title: Improvements in or relating to telemeters
IPC: G01C3/12
Filed: 1952-12-18
Abstract: 717,480. Rangefinders. OPTIQUE ET PRECISION DE LAVALLOIS. Dec. 18, 1952 [Feb. 4, 1952], No. 32143/52. Class 97(1) A short home base range-finder comprises an outer envelope, a supporting plate resiliently mounted therein, the image deviating means being pivoted to the plate and the non-adjustable optical elements being cemented directly to the plate or to parts cemented to the plate, reading means co-operating with the deviating means and, supported by the envelope, an ocular or oculars. A coincidence rangefinder is shown in plan in Fig. 1 and in transverse section in Fig. 3. The ocular 8 is mounted in the casing 20 containing the resiliently mounted supporting plate 1. The renectors 2. 3 are mounted directly on the plate and the objectives 4 5 are mounted in V-blocks 12. Superposed prisms 6, 7 direct the light beams respectively to prisms 9, 10 (Fig. 3) each containing two reflecting surfaces at right angles and mounted on a member 13 secured to the plate 1. The vertex 11 is in the focal plane of the ocular and provides a boundary between the two images. If one of the two images is required inverted the angle between the reflecting faces of the prism 9 is changed to provide an additional reflection at a vertical face. The adjusting member 14 is pivoted at 16 and actuated through a lever 15, by a slidable cam 17 with a scale 18 reading against an index 19. The same method of construction, using a modified ocular and prism system, may be applied to a stereoscopic rangefinder.
Patent GB-980222-A (GB)
Title: Filament producing process
Inventor: MCMULLEN PATRICK
IPC: D06M15/61
Filed: 1961-09-07
Abstract: Fibres, e.g. glass fibres, are coated with a synthetic resin, e.g. a polyamide resin by passing them through the interface of separate constituents capable of reacting with one another in an interfacial polymerization reaction so that the reaction takes place at the surface of the fibres generating the coating in situ. The fibres may be passed through a solution of adipyl chloride in tetrachloroethylene and then through a solution of hexamethylene diamine in water containing hydrated sodium carbonate.  The process may be carried out in a U tube which has a mercury seal at the bend and in one arm of which the reactants are placed, the fibres passing downwardly through the other arm, through the mercury and then upwardly through the first reactant, then the interface and the second reactant.
Patent GB-1002001-A (GB)
Title: Recovering blown products from petroleum residues
IPC: C10C3/04
Filed: 1963-08-14
Abstract: A process for recovering blown products from petroleum residues, in which at least one vapour product (e.g. spent blowing gas, water vapour, blown distillate) and at least one liquid product (e.g. blown asphaltic bitumen) are withdrawn from the blowing unit, comprises cooling at least the liquid product indirectly by using as coolant cooled or uncooled vapour product, and/or a coolant, e.g. water or air, previously used to cool the vapour product.  The vapour product is preferably cooled directly by a washing liquid, but may be indirectly cooled, and a condensate of the vapour product or a mixture of condensates may be used as coolant for the liquid product. The condensate may consist substantially of blown distillate. Coolant, e.g. condensate, for the liquid product may, after being cooled, be used to cool the vapour product directly, e.g. coolant may be cycled between the liquid and vapour cooling stages.  Two specific embodiments are described and two examples giving temperatures and flow rates. U.S.A. Specification 2,122,764 is referred to.
Patent GB-600996-A (GB)
Title: Improvements in or relating to inducing coils and the manufacture thereof
IPC: H05B6/40
Filed: 1945-11-29
Abstract: 600,996. Making coils for induction heating. BUDD INDUCTION HEATING, Inc. Nov. 29, 1945, No. 32237. Convention date, Jan. 11. [Class 83 (ii)] [Also in Group XI] A multi-turn coil for use in inductively heating a circumferentially toothed structure  such as a gear wheel has spaced teeth in one circumferential surface, complemental to the teeth of the structure to be heated, the teeth in the adjacent turns of the coil being in alignment. The coil is made by spirally severing an annular blank into multi-turn formation, inserting insulating material between adjacent turns and then rigidly holding the turns against relative movement while machining the teeth in one circumferential face. The coil 1 is in the form of a spiral winding having its ends in alignment and secured to connectors 5 and 6 for the supply of the cooling medium. Insulating material 7 is placed between the turns of the coil, which is supported within an annulus 10 of laminated magnetic material having inwardly extending end portions 11. The coil is insulated from this annulus by insulation 12 around the curved portion and by built-up layers of insulation 13 at the top and bottom. A cylindrical casing 9 surrounds the annulus 10 and the assembly is completed by annular end plates 18, 19 bolted to the casing 9. The coil is made from a tubular blank of electrically conducting material which is machined externally to form a spiral channel 2 and edge shoulders 3 and is then spirally severed around the ridge between the channels to form the individual turns 1. The outer side of the channel 2 is closed by brazing on a spiral strip 4. Connectors 5 and 6 are also brazed on and the insulation 7 is inserted between the turns of the spiral. Finally the coil and the laminated element 10 are assembled together and clamped within the casing 9 by the end plates 18, 19 after which spiral or other teeth 8 corresponding to those of the gear to be treated are machined in the inner face of the coil.
Patent GB-1089009-A (GB)
Title: Artificial dentures
IPC: A61K6/896
Filed: 1965-07-28
Abstract: A polymer composition used for forming the denture base of an artificial denture comprises a uniform mixture of acrylic material and silicone elastomeric material in a respective ratio of 6 to 1 to 1 to 10 parts by volume.  The term "acrylic" embraces polymers of any ester, nitrile or amide of acrylic, methacrylic or ethacrylic acids, and the polymers may also contain polystyrene, polyvinyl chloride, and polyvinyl acetate.  The silicone elastomers are room temperature vulcanizing silicone rubbers, generally being hydroxy - end - blocked polydimethylsiloxane polymers with fillers and sometimes including fluorosilicones; the preferred elastomer is "Silastic 390" (Registered Trade Mark).  The preferred mixture comprises one part of acrylic material to three parts of silicone.  The mixture is cured at room temperature or curing may be accelerated by heating the mould, e.g. in boiling water.ALSO:An artificial denture comprises a denture base member, contoured to fit the gum of the wearer and made of a uniform mixture of silicone elastomer and acrylic material, and at least one rigid artificial tooth partially embedded therein; the denture is made by drilling or otherwise indenting the parts of the teeth to be embedded, packing denture base material around these parts to fill the dents, and filling a mould in which the teeth are set with further such material so that the teeth become an integral part of the base.  The ratio of acrylic material to silicone elastomer is preferably within the range 6:1 to 1:10 by volume, whereby a flexible but sufficiently strong base is produced.
Patent GB-888843-A (GB)
Title: Improvements in or relating to switching circuits employing transistors
Inventor: MORGALLA NORBERT WALTER
IPC: H03K3/281
Filed: 1957-10-16
Abstract: 888,843. Transistor pulse-lengthening circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Sept. 18, 1958 [Oct. 16, 1957], No. 32268/57. Class 40(6). In a pulse-lengthening circuit the potential change occurring at the trailing edge of the input pulse is applied directly to one input electrode of a transistor and through a resistance capacity differentialing circuit to a second input electrode thereof whereby an output in the form of a potential change which is delayed with respect to the input is produced at a third electrode of the transistor. On the application of a positive voltage pulse to the input IL, the leading edge causes normally conducting transistor TX1 to cease conducting, whereby the emitter potential of normally conducting transistor TX2 falls thus cutting this transistor off also and causing the potential at output OL to free from approximately 0 volts to -V volts. At the same time the potential at the base of transistor TX2 is driven negative through the differentiating network C1, R4, but the component values are so chosen that the base always remains positive with respect to the emitter so that transistor TX2 is switched off at the moment of application of the leading edge at input IL. The potential of the base of transistor TX2 returns towards -V which is only slightly negative with respect to zero. The occurrence of the trailing edge of the input pulse causes transistor TX1 to resume conduction. The potential of the emitter of TX2 is thus restored to approximately zero, but at the same time the potential at its base is sent positive with respect to zero from the value -V, so that transistor TX2 remains cut off. Capacitor C1 however commences to discharge towards -V so that after a delay the base goes negative with respect to the emitter and the voltage at the output OL is returned to an approximately zero value. A diode, so poled as to cause a rapid discharge of capacitor Cl after the application of the leading edge of the input pulse, may be arranged in parallel with resistor R4; this permits the circuit to function with shorterduration input pulses than would otherwise be possible. The delay introduced by the circuit may be varied by constructing resistors R2, R3 as a variable potentiometer. NPN junction transistors may be used instead of those shown with a consequent change in polarity of the supplies; alternatively transistors of opposite conductivity types may be used in which case the direct connection is made to the base of TX2 and that through the differentiating circuit to its emitter.
Patent GB-1150960-A (GB)
Title: Improved Drum Brake
IPC: F16D65/56
Filed: 1967-07-13
Abstract: 1,150,960. Internal shoe drum brakes. KELSEY-HAYES CO. 13 July, 1967 [14 July, 1966], No. 32392/67. Heading F2E. In an internal shoe drum brake, an automatic adjuster comprises a variable length strut 125 interposed between the shoe 55 and fixed torque resisting member 119. The strut 125 carries one or more levers 205 engaging the torque resisting member 119 and arranged to be movable in one direction upon movement of the shoe 55 away from the torque resisting member 119 in the direction R (e.g. when the brake is applied when the vehicle is moving backwards) and to elongate the variable length strut 125 upon movement of the shoe 55 towards the torque-resisting member 119 when the brake is released. In Fig. 1 (not shown), a pair of floating shoes are interposed by two double-acting hydraulic cylinders fixed to a backing plate. A pair of return springs 63 is provided for each shoe. A variable length strut 125 is interposed between an abutment at one end of each shoe and torque resisting member 119 fixed to the backing plate. An abutment formed in a web 55 at the other end of each shoe is located within a bifurcated end of a further torque-resisting member fixed to the backing- plate. Each variable length strut consists of a hollow body 125, Fig. 8, containing a shank 135 adjustable by a nut 128 carrying a toothed wheel 147. A pair of levers 203, 205 are pivoted by a screw 207, Fig. 7, to the strut 125 and are resiliently coupled by a spiral spring 223. An arcuate face on the lever 205 is biased against the torque resisting member 119 by means of a spring 217 attached to the shoe at 221. When the brake is applied during backward movement of the vehicle, the shoe 55 is displaced in direction R due to friction with the drum. The resulting movement of the strut 125 away from the torque resisting member 119 causes levers 203, 205 to be displaced in the clockwise direction so that on release of the brakes, a pawl on lever 203 engages a tooth of wheel 147 so as to elongate the strut 125 sufficiently to compensate for lining wear. Alternatively, the toothed wheel 147 may be rotated by means of a tool inserted through a hole in the backing-plate. Undesired rotation of the nut 128 is prevented by means of a spring clip (171, Fig. 5, not shown). In Figs. 1 to 6 (not shown), the adjustable length strut has only a single lever, co-operating with the toothed wheel 147.
Patent GB-194361-A (GB)
Title: Improvements in apparatus for the washing and scrubbing of gases
IPC: B01D47/08
Filed: 1921-12-03
Abstract: 194,361. Cockey & Sons, Ltd., E., Hiller, H. K., and Harrison, J. F. Dec. 3, 1921. Scrubbers and washers.-Apparatus for washing and scrubbing gases comprises a number of superposed chambers a, b each having one or more bubbling hoods d at the lower part, and filling material g, such as porcelain rings, above and around such hoods, a rotating distributing device being arranged in the upper part of each compartment just below the gas inlet c to the next higher compartment for distributing the cleansing liquid from one compartment to the next. The distributing device may consist of a series of radial troughs h with serrated edges or perforated walls mounted on a central shaft and supplied with liquid which flows over weirs l into central vessels i and over the walls of these vessels into the troughs. The weirs l are of such height as to ensure the necessary liquid seal round the bubbling hoods. The edges of the hoods are provided with serrations or openings f. One or more of the compartments may be isolated from the others so that various cleansing liquids may be employed.