baber/WOPTO huggingface dataset:
Patent GB-321192-A (GB)
Abstract: 321,192. Loveluck, R. J., Thomas, J., and Scottish Dyes, Ltd., April 30, 1928. Samples furnished. Indanthrones.-Vat dyes are obtained by treating arylidoindanthrones and their derivatives with halogenating agents. The process is particularly applicable to 4 : 4<1>-diarylidoindanthrones, which may be obtained by condensing 1-amino-2:4- dihalogenanthraquinones with aniline, toluidine or the like in the presence of a copper salt and an acid absorber, and converting the 1-amino-2- halogen-4-arylidoanthraquinone formed into the indanthrone by heating with a copper salt and an acid absorber in a solvent, such as naphthalene. In examples, (1) a dichlor-4: 4<1>-dianilidoindanthrone is obtained by treating 4: 4<1>-dianilidoindanthrone with sulphuryl chloride or with chlorine gas in nitrobenzene; the product dyes in fast yellowish-green shades, (2) a tetrachlor-4: 4<1>- dianilidoindanthrone, dyeing in slightly yellower shades than the dichlor body, is obtained by using larger quantities of sulphuryl chloride; by still further increasing the quantities of the latter, larger amounts of halogen, up to 8 atoms, may be introduced, and (3) a dibrom derivative, dyeing in fast green shades, is obtained by treating 4 : 4<1>- dianilidoindanthrone with bromine in nitrobenzene. A chlorinated 8 : 8<1>-dianilidoindanthrone is also mentioned.
Patent GB-1365436-A (GB)
Title: Permoselective membranes
IPC: C08F214/08
Filed: 1972-07-10
Abstract: 1365436 Alkenylsulphonate copolymers MONTECATINI EDISON SpA 10 July 1972 [8 July 1971] 32172/72 Heading C3P [Also in Divisions B5 and D1] Copolymers useful, e.g. in the manufacture of cation-permoselective membranes are derived from (a) 5-80 mole per cent of an alkenesulphonate of the formula where n is 0 or 1, M is a cation of a mono-, di- or tri-valent metal or an ammonium ion, which may have up to four organic substituents, and z is the valency of M; (b) 5-95 mole per cent of vinylidene chloride or α-chloroacrylonitrile; and optionally (c) 0-90 mole per cent of another monomer containing a CH 2 =C= group. The polymers are prepared by conventional methods, e.g. solution polymerization in a polar organic solvent such as dimethylsulphoxide. Membranes may be prepared by evaporating a thin layer of a solution of the copolymer, optionally mixed with another polymer containing double bonds or halogen atoms, in a suitable solvent such as dimethylformamide or water and heating the resulting film at a temperature above 120 C. to form an insoluble cross-linked product. The copolymers can also be used in other applications requiring the presence of a strongly acidic group and are, for example, receptive to basic dyes. Examples are given of the preparation of copolymers of (a) CH 2 =CH-SO 3 Na or CH 2 =CH-CH 2 -SO 3 Na, (b) CH 2 =CCl 2  or CH 2 =C(CN)Cl and optionally (c) acrylonitrile, methyl vinyl ketone, vinyl dichloroacetate, #- hydroxyethyl acrylate or styrene. Membranes are prepared from these polymers alone or mixed with polyvinylchloride or a butadiene-acrylonitrile copolymer; in one case the polymer solution is used to impregnate a polyethyleneterephthalate mesh so that a supported membrane results.
Patent GB-1273652-A (GB)
Title: Method of joining telecommunication cables
Inventor: MALTZ GEORG
IPC: H02G15/013
Filed: 1970-07-02
Abstract: 1,273,652. Cable Junctions. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 2 July, 1970 [4 July, 1969; 13 Aug., 1969], No. 32212/70. Heading H2E. A method of joining telecommunication cables 6 (the other cable is not illustrated) in which an insulated splice 1 is made between the cable cores and enclosed in a metal tube 2 having an outer synthetic resin covering 3, and which is supported by rings 4 on the ends of the corrugated metal sheathes 5 surrounding the cable cores. Said supporting rings are made of insulating material. The ends of the metal tube and sheaths are enclosed in a twocomponent resin 9 consisting of a mixture of on the one hand the resin itself plus filler material and on the other hand the appropriate hardener. Uncovered portions of the metal sheaths 5, and the metal tube 2 are coated with a protective varnish, or bitumen. Furthermore, the sealing layer lying between the tube 2 and its covering 3 may be left on the tube and also enclosed by the resin 9. A party of the sealing layer lying between the metal sheaths 5 and their coverings 6 may be similarly left on the sheaths 5 and similarly enclosed by the resin 9, provided it does not extend to the supporting rings 4. In a further embodiment the ends of the synthetic resin coverings 6, 3 of the cables and metal tube have encircling metal bands filtered (7, 8 Fig. 2 not shown) and the resin is spread out to cover the metal bands also. In a further embodiment a layer of a thermoplastics adhesive is applied to the end portions of the cables and tube before the application of the resin, thereby achieving greater bonding of the resin to those portions of the cables and tube.
Patent GB-366519-A (GB)
Title: Improvements in screw-cutting taps
IPC: B23G5/06
Filed: 1930-10-27
Abstract: 366,519. Taps. SCOVILL MANUFACTURING CO., Mill Street, Waterbury, Connecticut, U.S.A. Oct. 27, 1930, No. 32249. Convention date, Nov. 9, 1929. [Class 83 (iii).] A tap has a pilot portion 14 slightly smaller than the hole to be tapped and the crests 13 of the teeth are flattened, the diameter of the roots of the teeth being constant and being less than the diameter of the bore to be threaded so that grooves in which chips can eollect are left between the inner wall of the work and the bottoms of the teeth. A circumferential groove 17 is located between the pilot and threaded portions. Specification 366,481, [Group XXVIII], is referred to.
Patent GB-849174-A (GB)
Title: Improvements in machines for making tufted fabrics
IPC: D05C15/00
Filed: 1958-10-09
Abstract: 849,174. Tufting machines. CARD, J. L. Oct. 9, 1958 [Nov. 25, 1957], No. 32269/58. Class 112 A tufting machine is adapted to form both loop pile and cut pile, according to a predetermined pattern, in the line of tufts produced by a single needle. Cut pile 23 is formed in a conventional manner by a needle 10, loop-taking hook 16 and loop-cutting knife 19. The machine is modified: by the provision of loop-stripping means adapted to prevent selected ones of the loops formed on the hook 16 from being engaged by the knife 19. A work-support plate 30 is formed with parallel grooves 31 each containing a bar 32, one of the latter for each needle, and all said bars being supported on a pivot bar 33. The front end of each bar 32 is formed with an offset tip 34 which is situated directly beneath the bill 22 of its associated hook 16. A projection 36 at the rear end of bar 32 is biased by a spring 37 towards a rotary drum 38 carrying a pattern sheet 40 formed with spaced slots 41. When projection 36 engages the surface of sheet 40, tip 34 is spaced from bill 22 and loops formed on the latter move progressively towards the throat 35 to be cut thereat by knife 19. When projection 36 enters a slot 41, tip 34 engages bill 22 and during the rearwards movement of bill 22 serves to strip the loop therefrom and thereby prevent cutting of the loop, to form loop pile 24. It is stated that the arrangement may be combined with the yarn feed arrangement described in Specifications 735.019 and 780,370 in order to produce high and low uncut loops.
Patent GB-1355861-A (GB)
Title: Vinyl halide polymer modifiers
IPC: C08L27/06
Filed: 1971-07-09
Abstract: 1355861 Multi-stage graft polymers; PVC compositions ROHM & HASA CO 9 July 1971 [17 July 1970] 32298/71 Heading C3G and C3P  A process for making an emulsion comprises the steps, (A) forming a non-rubbery, hard first stage polymer by emulsion polymerization of a first monomer charge of 50-100 wt. per cent of non-cross-linking vinylaromatic monomer and 50-0 wt. per cent of monovinylidene monomer copolymerizable therewith (other than vinylaromatic monomer) in the presence of 0-10 wt. per cent of a polyfunctional cross-linking monomer based on the weight of the first monomer charge; (B) adding to the resulting non-rubbery, hard polymer stage produced in step (A) a second monomer charge of 50-100 wt. per cent of one or more of butadiene, isoprene, chloroprene and C 3 -C 8  alkyl acrylate monomer and 50-0 wt. per cent of monovinylidene monomer copolymerizable therewith (other than butadiene, isoprene, chloroprene of C 3 -C 8  alkyl acrylate monomer) and 0-10 wt. per cent of polyfunctional cross-linking monomer based on the weight of the second monomer charge and emulsion polymerizing the second monomer charge to form a rubbery polymer stage substantially entangled on and/or within the hard polymer stage produced in step (A) and (C) adding to the polymer resulting from steps (A) and (B), a third monomer charge of 50-100 wt. per cent of a C 1 -C 4  alkyl methacrylate and 50-0 wt. per cent of a monovinylidene monomer copolymerizable therewith (other than C 1 -C 4  alkyl methacrylate) and, based on the weight of the third monomer charge 0-10 wt. per cent of polyfunctional cross-linking agent and 0-1À0 wt. per cent of an alkyl mercaptan (C 3 -C 12 ), and emulsion polymerizing the third monomer charge to form a third stage polymer substantially entangled on and/or within the polymer produced in steps (A) and (B). The polymerization may be initiated by either free radical or redox catalysts. The examples refer to graft polymers prepared by aqueous emulsion polymerization in which the 1st stage monomers are a mixture of styrene and diallyl maleate; the second stage monomers are a mixture of (a) butyl acrylate and butylene acrylate, or (b) butyl acrylate and diallyl moleate; and the 3rd stage monomer is methyl methacrylate. The graft polymer may be blended with a vinyl halide polymer containing more than 50% by weight vinyl halide mers. Numerous examples of such vinyl halide polymers are given and the examples describe blends of the graft polymer with polyvinyl chloride, the amount of PVC being either 80% or 77-5% by weight.
Patent GB-230938-A (GB)
Title: Improvements in machines for printing from engraved plates
IPC: B41F3/36
Filed: 1923-12-27
Abstract: 230,938. Sattler, R. Dec. 27, 1923. Guards, controlling.-In machines for printing from engraved plates comprises a reciprocating bed 5 co-operating with a segmental impression roller 25, a guard is provided comprising a bar 128 fixed on the end of a lever 129 pivoted at 130, the bar extending across the machine between the impression roller and the bed. A cam 127 fixed on the shaft 26 of the roller 25 is adapted to engages a roller 131 on the lever 129 so as to swing the bar outwardly when the roller starts rotating and remove the operator's hand. Specification 180,869, [Class 100 (ii), Printing processes &c.] is referred to.
Patent GB-459738-A (GB)
Title: Improvements in and connected with vehicles for manipulating and conveying bins for refuse or other purposes
IPC: B65F3/00
Filed: 1935-11-21
Abstract: 459,738. Scavengers' vehicles and the like. NORTH, 0. D., 76, Elm Park Mansions, Park Walk, Chelsea, and HUGH, P. G., and SCAMMELL LORRIES, Ltd., 54, High Holborn, both in London. Nov. 21, 1935, No. 32321. [Class 108 (i)] A vehicle for the manipulation and conveyance of bins is provided with a series of pivoted cradles each adapted to engage and to lift and lower a bin, actuating means common to all the cradles for operating the latter and means for selectively coupling the cradles to the actuating means. The vehicle 1 is provided with an actuating shaft 5 operable by a hand wheel 37 or other mechanical means. A series of cradles 7 are carried by arms 6 rotatably mounted on the shaft 5 which also carries a series of levers 18 each rigidly mounted on the shaft 5 and having its free end bifurcated to house a selector coupling means whereby each lever 18 can be coupled to a hooked plate 20 on each cradle. The shaft 5 is rotated through reduction gearing and chain 39, Fig. 9, from the hand wheel 37 the bin 8 being shown in fully loaded position in Fig. 9. To unload the bin on to the ground or to a discharging position as shown in Fig. 4, the cradle is rotated through a large or a small angle respectively, brake means being brought into operation automatically on completion of the desired angle. As the cradle is swung over a, coupling bar 24 slidably arranged in the free ends of the lever 18 rides bv means of one of two slots over a sector 46 mounted on the shaft 5, and according to the angle desired and the slot selected the abutment 45 or the lugs 48 are engaged causing the sector 46 to rotate through a small angle and by means of a spring-controlled rod 49 applying a brake band 51 to the drum 52 mounted on the shaft 40<a> carrying the sprocket 40 for the drive chain 39. The sprocket 41 for the chain 39 is connnected by a link 42 with a bell crank pivoted to a bracket 44 the bell crank having a weighted end 45 to balance the bin. Figs. 11 and 14 show the arrangement of the coupling bar 24 whereby any one or any pair or all of the cradles may be coupled to the drive shaft 5. As shown the T-shaped bar is provided with a series of broad wards 22 and a series of narrow wards 21 with a specially broad ward 23 at one end. By moving the bar 24 any adjacent pair of hooked plates 20 are engageable while if the whole of the cradles are to be engaged the bar is moved for the narrow wards 21 to engage the plates 20. To lock the bar in the selected position, recesses 31 are engageable by a roller 30 on a detent 28 and to vary the recesses available a bar 32 is placed. adjacent to the bar 34 and provided with recesses so that the bar 32 masks certain of the recesses in. the bar 24 and onlv when the recesses in each of the bars 24, 32 are coincident is the roller 30 capable of engaging them so locking the bar 24 in the desired position.. The centre of the bar 24 Fig..14, also shows the slots rideable over the sector 46, Fig. 9. Specification 424,719 is referred to.
Patent GB-281107-A (GB)
Title: Variable speed hydraulic transmission gear
IPC: F16H39/32
Filed: 1926-12-22
Abstract: 281,107. Brown, A. Hall-, and Jones, E. W. Dec. 22, 1926. Fixed-abutment type: governing and regulating.-A variable-speed transmission gear comprises a cylindrical barrel 5 having pump and motor rotors 1, 3 respectively, of the revolving drum and blade type disposed coaxially therein. The pump and motor casings are defined by revoluble end-plates 11, 12, shaped so that the rotors may slide freely through them and by an intermediate division plate 7 which is non- rotatable but which is adapted to be moved longitudinally in the barrel to vary the relative, capacities of pump and motor and consequently the relative speeds of the driving and driven shafts 19, 20 on which the rotors 1, 3 respectively are splined to slide. A valve 18, Fig. 2, between the motor inlet and exhaust ports 16, 17 respectively is provided by which the supply of liquid from the pump may be deflected from supply to exhaust and vice versa to control the direction of rotation of the motor. When the valve is in the intermediate position shown in Fig. 2 the circulation of fluid is arrested and the motor functions as a brake. The blades of the rotors have trunnions 25 at their outer edges which engage pockets formed in rings 27 revolubly mounted in the barrel 5, so as to reduce friction, while maintaining effective contact of the blades with the barrel. An enclosing outer case 28 of such volume as to house the liquid of the system without permitting it to reach the shafts is provided. A circulation pump 29 driven by the shaft 19 charges and maintains the system, a loaded relief valve being provided in the highest part of the hydraulic system for the removal of air and the prevention of excessive pressures. The inner ends of the drums 1, 3 are connected by flanges to the division plate 7 and this plate is moved, to change the gear, by a lever 6 which may be controlled from a centrifugal or fluid pressure governor. Movement of the plate 7 to the right from the position shown causes a splined sleeve 37 which is always in mesh with the clutch shaft to mesh with the rear shaft 20 through a spline 35 to give a direct drive.
Patent GB-160571-A (GB)
Title: Improvements in electric arc lamps
IPC: H05B31/00
Filed: 1919-12-24
Abstract: 160,571. Boardman, F. R., Boardman, R. V., and Boardman, F. Dec. 24, 1919. Arc lamps.-A photographic &c. lamp for use on direct and alternating-current circuits of various pressures, comprising a number of simultaneously-controlled pairs of carbons arranged so that they can be connected with appropriate resistances in series, series-parallel, or parallel, has stationary lower carbons and movable upper carbons carried by sliding members engaged by clutches. In a lamp with four arcs, two arcs and four resistance coils may be in series for 100-110 volts, four arcs and eight resistance coils for 200- 220 volts and four arcs and more than eight resistance coils for 230-250 volts. For higher pressures, two or more lamps may be connected in series. The resistances n, Fig. 5, may be carried by the base of an adjustable stand r carrying the lamp proper and mounted on castors. Four lower carbons b, Figs. 3 and 5, may be clamped in fixed holders d adapted to receive electric coupling bars or the like, while pairs of adjacent upper carbon-holders may be connected so that the current flows in opposite directions in adjacent arcs. Adapter sleeves p are fitted in the negative holders when direct current is used; for alternating current, all the carbons are preferably of large size, say 18 mm. The upper carbon-holders are attached to square sliding tubes f engaged by ring or disc clutches all linked to a pivoted bar k. An arm on the bar is coupled to a rod t which is normally drawn down by a spring or weight so as to lift the clutches as far as allowed by an adjustable stop m; the rod t is actuated by hand to feed the carbons. In a studio lamp, the feed may be effected automatically by means of series and shunt coils and an automatic switch. The carbons may be enclosed in a glazed casing s. Such lamps may be used in the production of kinematograph films, photo-process work, copying, &c.
Patent GB-1169675-A (GB)
Title: Inlet Systems for Mass Spectrometers
IPC: H01J49/04
Filed: 1968-07-08
Abstract: 1,169,675. Mass spectrometers. BENDIX CORP. 8 July, 1968 [21 July, 1967], No. 32512/68. Heading H1D. A sample inlet system to a mass spectrometer, e.g. of the time-of-flight type, comprises a molecular leak member 44 and a primary leak member 42 which is provided with a plurality of restricting flow passages 53 offering a total cross-sectional flow area greater than that of a single restricting flow passage of equal flow resistance. This is in order to reduce the average velocity of gas flow and hence the possibility of blockage. In an alternative embodiment (Fig. 3) the primary leak member comprises porous material providing in effect, a large number of restricting flow passages between the supply tube 40 and the chamber 48.
Patent GB-175735-A (GB)
Title: Improvements in and relating to the treatment of tea and in apparatus therefor
IPC: B02C23/00
Filed: 1920-11-18
Abstract: 175,735. Pitblado, L., and Horniman, J. E. Nov. 18, 1920. Tea, breaking; tea manufacture.-In order to remove the stalks from tea it is first graded by an air blast; the larger pieces containing the stalks are then crushed between resilient surfaces which break up the blade but do not injure the stalks, which are then removed by sifting. The tea is allowed to fall in a thin stream in front of a trunk through which passes an air blast, which carries the pieces of different sorts into different receptacles. The portion containing the stalks then passes from a hopper 10 to the rear end of a travelling band 11 passing over a roller 30 and the lower rollers of a set 12. A second band 13 passes over the upper rollers of the set, and the rollers are set more closely as the band advances. The band is made of heavy mill cloth and the rollers of rubber. The pressure is regulated so as to crush the blades without injuring the stalks. The crushed tea passes to a set of three sieves 17 mounted on springs 18 and reciprocated by an eccentric 16. The uppermost sieve is made of sheet metal punched with circular holes about <5>/32 of an inch in diameter.
Patent GB-1401898-A (GB)
Title: Gas detecting apparatus usein detector tubes
IPC: G01N1/24
Filed: 1973-07-09
Abstract: 1401898 Gas detector DRAGERWERK AG 9 July 1973 [8 July 1972] 32637/73 Heading G1B A portable gas-detecting apparatus comprises a housing which can be carried on the person, an electrically driven miniature fan mounted in said housing, a space in said housing for receiving a miniature electric power source for supplying electricity to drive said fan, and a detector tube connection with which said housing is provided and which communicates with said fan, said connection serving to communicate with a detector tube through which ambient air can be passed by operation of said fan. The apparatus may be secured to the front of a safety helmet, as illustrated in Fig.5, wherein there is provided a housing 1 containing a fan and power source, the housing being connected to a detector tube 7 by flexible tube 15. In the arrangement shown in Fig.5, the aspiration aperture 14 of the detector tube is positioned in the region of the wearer's mouth. The aspiration aperture may be positioned elsewhere, e.g. near the wearer's head Fig.4, (not shown). The efficiency of the apparatus may be checked by connecting the detector tube to a monometer Figs.2 and 3, (not shown) so that the negative pressure generated by the apparatus may be measured.
Patent GB-409613-A (GB)
Title: Improvements in and relating to electron discharge tubes and incandescent electric lamps
IPC: H01J19/38
Filed: 1933-11-22
Abstract: 409,613. Filaments for electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Nov. 22, 1933, No. 32643. Convention date, March 22. Drawings to Specification. [Class 39 (ii).] Wire structures such as filaments of zig-zag or coiled form for electric incandescent lamps are constructed of wire gauze the wires of which are of different materials. The gauze is bent into the required shape and some of the wires are removed by chemical action, such as solution in inorganic acids. The gauze may be rolled to increase its rigidity. In the example given the gauze is of tungsten or molybdenum of 100 microns diameter or less interwoven with iron wires and rolled. After bending to the required shape the iron wires are dissolved out in hydrochloric acid. Brass wires may be used. Some of the soluble wires may be replaced by chemically resistant wires to provide supports.
Patent GB-612615-A (GB)
Title: Improved process of causing chlorine dioxide to react in an alkaline medium
IPC: C01B11/10
Filed: 1945-12-03
Abstract: In the preparation of chlorites from chlorine dioxide in an alkaline medium, the action is accelerated by the use of compounds of silver, nickel, manganese, copper, cobalt, mercury, iron or gold, or of the metals themselves, or of active carbon, or of combinations of them, as a catalyst in solution or in a finely divided condition and in an amount which is smaller than a quarter of the amount of chlorine dioxide converted.  Reducing agents other than the compounds referred to above, and other than ammonia, a derivative of ammonia and substances capable of yielding ammonia or a derivative of ammonia, e.g. sodium formate, may also be added.  The amount of catalyst employed may range down to a few tens of milligrams per litre of liquid treated. Reference is made to the treatment with chlorine dioxide of ammonia and caustic soda solutions and of lime and magnesium hydroxide suspensions.  Specifications 460,374, 460,375 and 495,289 are referred to.