baber/WOPTO huggingface dataset:
Patent GB-165832-A (GB)
Title: A cheap substitute for horn, ebonite, vulcanite, and other like substances
IPC: C08L89/00
Filed: 1919-07-08
Abstract: 165,832. Fitzgerald, F. W. V. July 8, 1919. Plastic compositions containing blood.-In preparing solid mouldable products from blood, the blood is treated to yield liquid or solid intermediate products which are coagulated by heat or by admixture with coagulants such as formaldehyde, strong alkalies or acids, metallic salts, chromates, &c. Three classes of intermediate products are described. (a) liquid products obtained by evaporating blood, which has been defibrinated or treated with a citrate to preserve its fluidity, by heating it in an open vessel fitted with a stirrer and kept at 115-120‹ F. or in an open tray fitted with baffles to cause the blood to flow in a zig-zag path, (b) solid products obtained by continuing the evaporation in vacuo or with as little exposure to the air as possible, and (c) solid product, obtained by injecting the liquid products or fresh blood treated with a preservative into a liquid heated to 160-212‹ F. and preferably containing formaldehyde or caustic soda, and separating the solids by filtration. The liquid products, alone or mixed with the solid products, are coagulated by addition of formaldehyde or caustic soda. The mixture is poured into a mould which may be kept at 155-160‹ F. The solid product (b) is pulverized and agglomerated by heat and pressure. Calcium hydrate or oxidizing-agents such as sodium or potassium bichromate, potassium permanganate, or manganese dioxide may be added to the blood before treatment. Bubbles of air or gas are eliminated from the blood by passage through a fine mesh or by treatment in vacuo. Blood from which the corpuscles have separated by standing or otherwise may be used, and may be mixed with a solution of fibrin in potassium nitrate or other solvent. In making vulcanite or ebonite substitutes, absorbent or filling substances may be added, and in making insulating compounds, resins, gums or oils may be added. One of the Provisional Specifications describes also the precipitation from blood, by addition of diluted ethyl or methyl alcohol, of albumen, which may be mixed with other substances and moulded under heat or pressure, and also, the addition to the blood of haematin or iron salts which tend to oxidize.
Patent GB-273338-A (GB)
Title: Electric fuses for explosive shells
IPC: F42C11/06
Filed: 1927-06-27
Abstract: 273,338. Rheinische Metallwaarenund Maschinenfabrik. June 26, 1926. [Convention date]. Reciprocating and oscillating machines.-A condenser charged by a current produced :n a coil by a sudden displacement of a permanent magnet on the discharge of the projectile or on impact is arranged to discharge through a variable resistance in series with an electric primer. The time required to bring the primer up to the ignition temperature varies acording to the strength of the current, which is regulated by the resistance. The arrangement therefore acts as a time fuze or a delay-action impact fuze. As shown in Fig. 1, the permanent magnet a is normally held in the forward position by safety springs b, which vield to the shock of the discharge. The setback of the magnet then causes a current in a coil d, which charges a condenser f. At the end of its stroke, the magnet a strikes a metal strip which breaks the circuit from the coil to the condenser and completes the circuit of the condenser through the body of the fuze, a screw t, a variable resistance r, a contact q, the wire o of the primer n, a screw m, and a lead l. The resistance r is an insulated coil of wire carried by a ring S set like the usual ring of ordinary time fuzes. In a modification, the primer is first heated by a current direct from the coil through a fixed resistance while the condenser is being charged, this current is cut off at the same time that the coil is cut off from the condenser at the end of the stroke of the magnet, and the heating is completed by current from the condenser through the variable resistance. In a further modification, a switch operated by momentum on impact short-circuits the variable resistance, causing immediate action of the primer if the time action has not yet taken place or has failed.
Patent GB-725401-A (GB)
Title: Improvements in or relating to hollow apertured articles and methods of manufacturing such articles
IPC: G01N27/36
Filed: 1953-06-22
Abstract: 725,401. Perforating glass. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 22, 1953 [June 25, 1952], No. 17223/53. Class 56. A hollow apertured glass article (e.g. a capillary tube having an aperture through the glass communicating with the capillary bore, the tube forming part of an electro-chemical E.M.F. measuring device) is made by placing liquid under pressure in the hollow i.e. in the bore-and placing the article in an etching liquid. The liquid from the bore flows into the etching liquid after the aperture has been formed by the etching. An indication is given, electrically, when the aperture has been formed.
Patent GB-472810-A (GB)
Title: Cooled atomiser for internal combustion engines of the liquid fuel injection type
IPC: F02M61/10
Filed: 1937-06-21
Abstract: 472,810. Fuel-injectors. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. June 21, 1937, No. 17245. Convention date, June 22, 1936. [Class 7 (iii)] To provide a seal between a cooling space 12 in an injection nozzle 6 and the fuel space 11 in a valve housing 2, the nozzle is provided with a cylindrical sleeve 9 which is pressed against the inside wall of the fuel space by the fuel pressure. The cooling medium may be fuel oil and fuel leaking past the valve may be led through a duct 16 into the discharge duct 4 of the cooling oil. To prevent leakage between the housing 2 and the nozzle 6, the nozzle may be provided with a sealing surface which contacts with the end wall of the housing or the nozzle may be welded to the housing at 7.
Patent GB-201359-A (GB)
Title: Improvements in fire-extinguishing sprinklers
IPC: A62C37/14
Filed: 1922-06-23
Abstract: 201,359. Taylor, J., and Buckley, E. W. June 23, 1922. Sprinklers, automatic.-In fire-extinguishing sprinklers of the type wherein the sprinkler valve is released by the bursting of a hollow glass strut by the expansion of a volatile liquid therein, the glass strut c is supported on arms b on a yoke a and contacts with a metallic cup e holding the glass &c. valve d. The strut has one or more bosses h or recesses engaging corresponding recesses or bosses on the cup. The arms b are non-symmetrically disposed on the yoke and non- symmetrically shaped in cross section so that the cap e and valve d are thrown clear of the water spreader h<1>. Specification 17199/02 is referred to.
Patent GB-190439-A (GB)
Title: Improvements in or relating to machines for slicing meat or the like
IPC: F16H25/20
Filed: 1922-06-23
Abstract: 190,439. Aktiebolaget Stille-Werner. Dec. 16, 1921, [Convention date]. Cutting slices in succession.-In a reciprocating-table, disc-knife, slicing-machine of the type wherein the feed-screw nut 8, after disengagement from the feed-screw 7 is re-engaged, on reversing the direction of rotation, by a spring- pressed pawl, the pawl 23 has oblique and vertical engagement faces whereby it may engage or rise over the threads according to the direction of the feed-screw 7. A key 25 and keyway 26 prevent the stud 23 from revolving. The feed-screw is intermittently operated by the contact of an arm 10 with an adjustable rod 13. According to the Specification as open to inspection under Sect. 91 (3) (a) a ratchet-wheel 15, mounted loosely on the feed-screw spindle, is secured to a ratchet-wheel 17, the wheel 15 being intermittently operated by a pawl 14 mounted on the spring-returned arm 10. A cup-shaped casing 19 is secured to the, screw-spindle and is provided with a spring-pressed pawl 18 which engages the wheel 17 and transmits the intermittent motion to the feed-screw. On moving the handle 21 in the direction of the arrow Fig. 5, (Cancelled), the pawl 18 is disengaged and presses the spring 20 against the casing thus reversing the feed-screw motion and retracting the meat-table from the knife. A whole nut or a single projection may be substituted for the nut segment 8. This subject-matter does not appear in the Specification as accepted.
Patent GB-815924-A (GB)
Title: Activated clays
Inventor: NEUMANN BARBARA SUSAN
IPC: C04B33/13
Filed: 1956-06-05
Abstract: In the preparation of acid activated bleaching montmorillonite clays, the clay is subjected to mechanical working involving vigorous shearing of the clay particles, prior to the acid activation, the clay having a moisture content of 20-50 per cent.  The clay may be the moist raw clay as mined, or may be a powdered clay mixed with water.  The mechanical working may involve mulling or extrusion.  The original clay may consist of particles of which at least 50 per cent by weight have an equivalent spherical diameter of less than 10 microns, in which case the clay is activated with acid equivalent to at least one part of sulphuric acid to two parts of clay (calculated on the dry clay).  Sulphuric acid is preferably employed, but other strong mineral acids, e.g. hydrochloric acid, may also be employed.
Patent GB-597277-A (GB)
Title: Improvements in mining machines
IPC: E21C27/02
Filed: 1946-07-09
Abstract: 597,277. Mining - machines. ANDERSON, A. and ANDERSON, BOYES, & CO., Ltd. July 9, 1946, No. 17401/45. [Class 68 (i)] A combined cutting and loading longwall mining machine comprises a cutting unit 10 of jib-chain-cutter type and a loading unit 11 of the transverse conveyer type attached to the rear of the cutting unit, and two electric or fluid-pressure motors 12, 13, mounted side-by-side in the cutting unit, motor 12 driving the cutter and motor 13 driving the loader through means including a coupling shaft 15 extending across the cutting mechanism. In other forms, the cutting unit includes upper and lower jibchain-cutters, the upper one, if desired, being capable of vertical adjustment through a hydraulic pump driven by either motor.
Patent GB-205052-A (GB)
Title: Improvements relating to double acting presses
IPC: B30B9/30
Filed: 1923-07-05
Abstract: 205,052. Villain, J. J. Oct. 7, 1922, [Convention date]. Baling-presses.-Relates to double-acting baling presses for scrap iron, wire, fodder &c. The framework carries two opposed boxes 1, 2 closed by doors 3, and hinged tops 5 held in the closed position by eccentric discs 6 and adapted to be raised by cables 13. Pistons 8 slide in the boxes and are operated alternately by a rack 9. In use, a box is filled with scrap-iron &c. when the piston 8 is in its backward position, and the rack moved forward by arms 40, 40<1>, mounted on eccentrics 20 on a driven shaft 24 and formed with teeth 21, 21<1> which engage the rack in the outward direction only. Bolts 10, Fig. 4, pivoted on the rack, ride over inclines 18 and engage with recesses 19 to connect the rack and pinion in readiness for the return stroke. At a given point in the compressing stroke, a stop on the rack engages a lever 30, Fig. 1, connected by a rod 31 to an arm on a shaft 4, and opens the door 3 and the bale is discharged. On the return stroke, the rack withdraws the. piston until a stop 11, Fig. 4, causes the bolts 10 to disengage the recesses 19, thus preventing the piston from being drawn out of the box. Three or more eccentrics and corresponding series of arms may be used, the eccentrics being angularly displaced on the shaft 24, and the rack may be formed with a corresponding number of series of teeth in staggered relationship, in order to produce a more uniform movement. Counter weights 22. 22<1> determine whether the teeth on one arm or the other engage the rack.
Patent GB-544291-A (GB)
Title: Improvements in or relating to setting-up devices for stereoscopic projection apparatus
IPC: G03B35/00
Filed: 1940-12-10
Abstract: 544,291. Stereoscopic projection. KODAK, Ltd. (Eastman Kodak Co.). Dec. 10, 1940, No. 17499. [Class 97 (i)] An element or elements, for insertion in an apparatus for projecting stereoscopic pairs of images by means of two beams, carries two scales, each formed by numerals 10, and relatively placed so that when the beams have been adjusted so that the images of the two numerals corresponding to the distance of the projector from the screen are in register on the screen, the images on stereoscopic slides subsequently projected will be superposed with the two images of any point at infinity spaced apart a distance equal to the average inter-pupillary distance. Additionally opaque marks 12 having translucent centres may be provided, the marks being so placed that when their images on the screen are separated by the average inter-pupillary distance the adjustment is correct; knowledge of the distance between the projector and screen is unnecessary when using these marks. Lines 14 and marks 15, 16 may also be provided, so that when the images of the lines bi-sect the images of the marks 15, 16, the beams are correctly adjusted vertically. Adjustment of the beams may be effected by movement of one of the projection lenses. Specifications 542,603 and 543,959 are referred to.
Patent GB-679123-A (GB)
Title: Improvements in television apparatus
IPC: H04N5/18
Filed: 1949-07-02
Abstract: 679,123. Television. BABBS, C. H., and PYE, Ltd. June 30, 1950 [July 2, 1949], No. 17547/49. Class 40 (iii). The " black " and " white " signal excursions of a television waveform are " clipped " at predetermined levels each of which is independently adjustable. In the circuit shown, the video waveform is fed to the control grid of a valve V<SP>1</SP>, the anode load resistance R<SP>3</SP> of which also provides the anode load of a further valve V<SP>2</SP> to the control grid of which blanking pulses are fed, so that combined video and blanking signals are developed in the common anode circuit. The combined signals are then fed to a diode V3A which is conductive during the occurrence of video signals but which is non- conductive during the blanking intervals, the level (" black ") at which conduction ceases being determined by the adjustment of the variable resistance R<SP>2</SP>. During the conduction periods of V<SP>3</SP> A the video signals are developed across the network L<SP>1</SP>, R<SP>11</SP> (which elements are effectively in parallel with R<SP>3</SP>, so that the load impedance is less than R<SP>3</SP>) and supplied to a cathode-follower stage V<SP>5</SP>A but, during the occurrence of blanking signals (i.e. when V<SP>3</SP>A is non-conducting) the load impedance of V<SP>1</SP>, V<SP>2</SP> increases to the value of R3 so that the signals developed are increased in amplitude. To prevent these signals being coupled into the circuit L<SP>1</SP>, R<SP>11</SP> by the self-capacity of V3A a second diode V<SP>3</SP>B is arranged to limit the potential excursion at the anodes of V<SP>1</SP>, V<SP>2</SP>. The video signals which are derived from the cathode-follower stage V<SP>5</SP>A are limited at a level in the " white " direction by means of a diode V<SP>5</SP>B, the " clipping " level of which is determined by potentiometer R<SP>10</SP>. The anode voltage supply for the complete circuit is provided by a stabilized source and further stabilization of the voltages which set the clipping levels of the diodes V<SP>3</SP>A, V<SP>3</SP>B and V<SP>5</SP>B is provided by means of a cathode-follower voltage stabilizing valve V<SP>4</SP>.
Patent GB-516058-A (GB)
Title: Improvements in or relating to seating rings or washers
IPC: F16F3/10
Filed: 1938-06-13
Abstract: 516,058. Seating rings for cardboard &c. containers. HOSKING, H. G. W. June 13, 1938, No. 17558. [Class 108 (iii)] [Also in Groups XVII and IV] A container for a heavy article is made of thin metal, cardboard, fibre &c. and has within it as a seating for the article a seating ring a of heat hardening synthetic resin varnish with a canvas or linen base, the ring being movable laterally or longitudinally in a groove in the container. An additional member c of felt or of radially corrugated steel may be employed. The ring is made by winding the impregnated fabric on a mandrel to form a cylinder hardening by heat, dividing the cylinder into rings and immersing in paraffin.
Patent GB-219164-A (GB)
Title: Improvements in lathe beds
IPC: B23Q1/48
Filed: 1923-07-09
Abstract: 219,164. Holbrook, R. E. Julv 9, 1923. Lathes.-A lathe having a gap bed comprises two guide surfaces A, B, in fixed parallel relationship with one another, the former carrying the tailstock and the latter a longitudinally-slidable guide member C upon which the saddle is adapted to travel. A pivoted member F fitted to the underside of the saddle guide C engages a longitudinal slot F<2> in the bed B whereby the guide, in addition to its longitudinal movement, may be inclined to the axis of the lathe for taper turning. Index marks G are provided to facilitate accuracy of adjustment. The guide C carries the lead screw D and the feed shaft E driven through telescopic connections and universal joints from the headstock.
Patent GB-949182-A (GB)
Title: Improvements in or relating to synthetic resin coating compositions
Inventor: BELL GEORGE
IPC: C08L63/00
Filed: 1960-05-19
Abstract: A coating composition comprises a dispersion of 100 parts by weight of a homopolymer or co-polymer of a vinyl halide in a plasticizer of low volatility, between 2 and less than 20 parts of an epoxy resin, and a hardener for the epoxy resin which is inactive at room temperature.  The vinyl halide may be co-polymerized with vinylidene chloride, vinyl acetate, styrene, methyl methacrylate or vinyl butyl ketone. The plasticizers may be polyesters or liquid butadieneacrylonitrile copolymers. At least 50% of them should be non-volatile at the curing temperature of the compositions. They are usually employed together with a solvent, e.g. xylene, or a conventional plasticizer, e.g. butyl, octyl or decyl phthalate, or butyl or decyl sebacate.  Suitable epoxy hardening agents are dicyandiamide, resoles, or etherified urea- or melamine-formaldehyde resins.  The compositions are particularly useful for coating metals. In Examples, (1) polyvinyl chloride is milled with a liquid adipate of poly-propylene glycol, di-n-butyl sebacate, a liquid epoxy resin, dicyandiamide, and xylene. (2) The composition consists of polyvinyl chloride, liquid butadiene-acrylonitrile polymer, liquid epoxy resin, dicyandiamide and di-n-butyl sebacate. (3) Solid epoxy resin is dissolved in dibutyl phthalate and an adipate of polypropylene glycol.  A butanol solution of butylated urea-formaldehyde condensate is added and polyvinyl chloride is milled into the mixture.  The pasty compositions may be spread on metal sheets, e.g. tinplate and cured by heating-the composition of Ex.(1) at 175 DEG C. for 30 mins., of Ex.(2) at 190 DEG C. for 25 mins., and of Ex.(3) at 180 DEG C. for 30 mins.ALSO:Compositions of epoxy resin, hardener therefor, a homo- or co-polymer of a vinyl halide and a plasticizer of low volatility (see Division C3) are spread with a knife on to a clean surface of metal, e.g. tinplate sheets and cured by heating, e.g. at 175-190  DEG C. for 25 to 30 minutes.
Patent GB-427653-A (GB)
Title: Improvements in or relating to adhesive films, sheets, strips or tapes
IPC: C09J7/02
Filed: 1933-07-22
Abstract: In preparing adhesive sheets, a backing of cellulose nitrate or acetate or regenerated cellulose coated with cellulose nitrate or acetate, is pre-coated with a primer comprising rubber latex, casein and aqueous ammonium hydroxide.  Alkyd or urea resins may replace latex, and glue, isinglass or gelatine may be used in addition to or in place of casein.  A small quantity of maleic acid may be added. There is then applied a water-soluble adhesive such as hide or bone glue, gelatine, casein, Irish moss and gum arabic, tragacanth or acacia, containing one or more organic modifying agents, for example glycerine, diethylene glycol, glycol, triethanolamine, diethylene glycol monoethyl ether, glycol bori-borate or glyceryl bori-borate, b -naphthol, sugar, honey, glucose, sulphonated castor oil, gum tragacanth, gum arabic, Venice turpentine, drying or non-drying oil, shellac, and waxes such as paraffin.  Specification 427,701, [Group V], is referred to.ALSO:The adhesive sheet described in the parent Specification is modified by replacing the water-insoluble adhesive by a water-soluble adhesive such as hide or bone glue, gelatine, casein, Irish moss and gum arabic, tragacanth or acacia, containing one or more organic modifying agents, for example, glycerine, diethylene glycol, glycol, triethanolamine, diethylene glycol monoethyl ether, glycol bori-borate or glyceryl bori-borate, b -naphthol, sugar, honey, glucose, sulphonated castor oil, gum tragacanth, gum arabic, Venice turpentine, drying or non-drying oil, shellac, and waxes such as paraffin.  The adhesive may contain pigments such as magnesium carbonate, lead oxide, whiting or zinc oxide.  The adhesive may be pressure sensitive or normally dry and rendered adhesive by water and/or heat, in which case the hygroscopic ingredients are incorporated in smaller amount.  Specification 427,701 is referred to.
Patent GB-929253-A (GB)
Title: New derivatives of indane-1:3-dione and process for preparing the same
IPC: C07C45/63
Filed: 1961-05-16
Abstract: The invention comprises compounds of general formula <FORM:0929253/IV(a)/1> wherein X and Y represent hydrogen or halogen atoms or aryl (e.g. phenyl) groups, but are not both hydrogen; and their preparation by condensing a compound of formula <FORM:0929253/IV(a)/2> with a phthalic ester in an organic solvent and in the presence of an alkali metal alcoholate. 1,1-Bis-phenyl-2-propanones above (the semi carbazones of which are described) are prepared by Friedel-Crafts reaction of a compound C6H5Y with an appropriate 1bromo-1-phenyl-2-propanone which may be obtained by bromination of an appropriate phenyl-acetone; p-chlorophenyl-acetone is prepared from p-chlorobenzaldehyde. Specification 761,816 is referred to.ALSO:Substituted 2-acetyl-indane-1 : 3-diones of general formula <FORM:0929253/VI/1> wherein X and Y are hydrogen or halogen atoms or aryl (e.g. phenyl) groups, but are not both hydrogen, are rodenticides.  They are administered, for example with grain, causing h morrhage. Specification 761,816 is referred to.
Patent GB-596007-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C08J3/09
Filed: 1945-07-13
Abstract: Polymers in aqueous dispersions are transferred from the water to an organic phase by adding to the dispersion a liquid organic latent solvent plasticiser, mixing until the resin forms a homogeneous mass with the plasticiser and decanting the water. The plasticiser is one which has no effect on the resin at room temperature, but coalesces therewith at elevated temperature. Suitable plasticisers are dibutoxy ethyl phthalate, blown castor oil, polymerized butyl acetyl ricinoleate, glycol esters of aliphatic acids, sebacates, adipates, oleates and organic phosphates.  Pigments, stabilizers such as phenoxy propylene oxide, lead silicate and carbonate and anti-foaming agents may also be added.  Suitable resins are vinyl chloride polymers and copolymers thereof with alkyl esters of vinylene dicarboxylic acids, particularly diethyl fumarate; vinyl esters, ethers, ketones; acrylic and substituted acrylic acids, their esters and nitriles; ethylenic acids; vinylidene halides; olefins and halogenated olefins; and dienes and halodienes.  Transfer of the resin is accelerated by adding an electrolyte such as sodium chloride or by heating.  After separation, the paste may be thinned with a non-solvent diluent such as aliphatic hydrocarbons, toluene, xylene and lower aliphatic alcohols.  The compositions are useful in coating fabrics, films, metal and wood, the coated article being afterwards heated to gelatinize the resin and to remove the diluent (see Group VIII).  Films, sheets and moulded articles may also be prepared from the compositions.