baber/WOPTO huggingface dataset:
Patent GB-325541-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1928-11-21
Abstract: 325,541. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Nov. 21, 1928. Clutches, ratchet.-Mechanism for driving a slicing-machine of the disc-knife reciprocating-carriage type, or part of the machine, by hand or power, comprises one or more manually - controlled double-acting clutches for transmitting the drive. The machine shown in Fig. 1 comprises a disc knife 3 and a. carriage 2 connected by linkage 10, 11 to a shaft 9 geared to a shaft 6 which is geared also to a hand-wheel shaft 13. A motor drives by means of a belt 27 a pulley 25 having free-wheel connection 26, Fig. 3, with a shaft 24 carrying loose sprocket-wheels 16, 19, which are connected by chains 15, 20 to sprocket-wheels 14, 18 on the shaft 6 and the knife-shaft 17 respectively. The sprocket-wheels 16, 19 are mounted loosely on drums 21, 22 keyed on the shaft 24 and each provided with two spring-plungers 35, and two pairs 38, 38a, Fig. 4, of tapered pockets containing rollers 33, 33<a> and spring-urged abutments 34, 34a respectively. The pockets 38, 38<a> in each drum taper in opposite direction to the pockets 38, 38<a> in the other drum. The plungers have pointed ends 35a entering the pockets 38, and can be projected to engage the rollers 33 by means of a rod 32 which is movable axially by means of a knob 31 and has cams 36, 37 for engaging the heads 35<b> of the pairs of plungers in the drums 21, 22 respectively. A groove 41 for retaining the heads 35<b> is arranged between the cams. Each drum and set of rollers form a double-acting clutch which can be employed to transmit torque from the drum to its sprocketwheel or vice versa. When the rod 32 is in the position shown in Fig. 3, the knife and carriage can be operated by hand or power. On turning the hand-wheel, the sprocket-wheel 16 is rotated clockwise, Figs. 3 and 4, and the associated rollers 33 transmit torque to the drum 21, the torque being transmitted by the drum 22 and associated rollers 33 to the sprocket-wheel 19, and the free-wheel 26 permitting the pulley 25 to remain stationary. Similarly, if the motor is started, the drums 21, 22 transmit torque to the sprocket-wheels 16, 19 by means of the rollers 33a. If the rod 32 is moved to the left, the plungers in the drum 21 are projected and the associated rollers 33 are disabled so that on operation of the hand-wheel the carriage is reciprocated and the knife remains stationary or can be operated independently by the motor. If the rod 32 is moved to the right, the plungers in the drum 22 are projected to disable the associated rollers 33, and the carriage can be operated either by hand or motor, the knife remaining stationary.
Patent GB-1351989-A (GB)
Title: Removal of nitrogen oxides from exhaust gases using copper- nickel catalyst
IPC: B01D53/94
Filed: 1971-07-21
Abstract: 1351989 Purifying exhaust gases ESSO RESEARCH & ENG CO 21 July 1971 [30 July 1970] 34163/71 Heading C1A [Also in Divisions F1 and C7] A process to reduce the nitrogen oxide content of I.C. engine exhaust gas comprises contacting the gas with a nickel copper alloy consisting of nickel and copper only, apart from impurities and containing at least 40% by weight nickel and not more than 0À1% by weight manganese. The catalyst may be unsupported and in the form of small particles of sheet metal, pellets or non-nesting square cornered saddles or it may be on a support such as iron, steel or copper. It may be mixed with a temperature resistant material, e.g. calcium silicate and refractory oxides may be used as diluents. Reactors using these catalysts are placed immediately after the exhaust manifold. The catalyst may be used in the first stage of a two stage reactor system. Exhaust gas is fed to the first stage without additional air, the effluent from the first stage being fed with additional air to a second stage which may contain an oxidizing catalyst or may be an afterburner without catalyst.
Patent GB-409815-A (GB)
Title: Improvements relating to hose couplings
IPC: B25B25/00
Filed: 1932-12-03
Abstract: 409,815. Hose couplings. McCRERIE, A. W. A., 4, East Park Road, British Legion Village, Aylesford, Kent. Dec. 3, 1932, No. 34231. [Class 99 (i).] A hose pipe H is secured to the liner of a coupling member G by copper wire which is wound therearound by the rotation of a tool U, Fig. 6, which is arc-shaped at one end to coact with the hose and is provided with a reel 0 for the wire, the wire being applied to the hose through a guide Q and an adjustable tension plate R. To facilitate this operation the coupling member is mounted on an expansible gripping member F, Fig. 2, carried by a tripod A fixed to a bench, and the hose is clamped temporarily to the coupling by the device shown in Fig. 3. The latter comprises a strap J adapted to be passed around the hose, a tightening lever K, a locking. chain L, and a nut N to which the end of the binding wire is secured.
Patent GB-906017-A (GB)
Title: Substituted tetrahydro- and hexahydrophthalic anhydrides and resinous compositions containing the same
IPC: C08G59/42
Filed: 1959-10-09
Abstract: A resinous composition comprises a polyepoxide resin having a 1,2-epoxy-equivalency of at least 1,1 and a curing agent therefor comprising a dialkyl alkenyl tetrahydrophthalic anhydride or a trialkyl hexahydrophthalic anhydride or a mixture thereof said curing agent being present in an amount such that from 0,8 to 1,2 equivalents of anhydride are present for each equivalent of epoxide in the polyepoxide resin.  The polyepoxides employed may be saturated or unsaturated cycloaliphatic, aromatic or heterocyclic and may be substituted with chlorine atoms, hydroxy or amino groups or both hydroxy and amino groups. Preferred curing agents are dimethyl butenyl tetrahydrophthalic anhydrides and dimethyl butyl hexahydrophthalic anhydrides, the term "butenyl" including all alkenyl radicals of the formula C4H7 and the term "butyl" all alkyl groups of the formula C4H9, and are preferably prepared from allo-ocimene and maleic anhydride (see Group IV(b)).  Examples are furnished wherein the curing of epoxy resins in the presence of the anhydrides specified above and N,N-dimethyl-benzyl amine is described.  In a comparative example phthalic anhydride is used as the curing agent.  Optional additives specified are solvents (acetone, ethyl acetate and chloroform), and resins (alkyd, urea or phenolics).ALSO:Acid anhydrides are obtained by reacting allo-ocimene and maleic anhydride and optionally hydrogenating the product.  The product of the Diels-Alder reaction is believed to consist of a mixture of 3,4-dimethyl-6-isobutenyl-tetrahydrophthalic anhydride and 3,3-dimethyl-6-sec. butenyl-tetrahydrophthalic anhydride and the hydrogenation product, of a mixture of 3,4-dimethyl-6-isobutyl-hexahydrophthalic anhydride and 3,3-dimethyl-6-sec. butyl hexahydrophthalic anhydride.  The allo-ocimene-maleic anhydride reaction product may be isomerised by heating to obtain products liquid at ordinary temperature. The hydrogenation may be carried out at elevated temperature and pressure in the presence of Raney nickel.  Examples are furnished. The products are used as curing agents for polyepoxide resins (see Group IV(a)).
Patent GB-872527-A (GB)
Title: Noise suppression circuits in transistorised wireless receivers
Inventor: MORAWA HEINZ
IPC: H03G3/34
Filed: 1957-11-04
Abstract: 872,527. Transistor mutiny circuits. FUNKWERK DRESDEN VEB. Nov. 4, 1957, No. 34369/57. Class 40(6) A radio receiver of the type having a transistor low frequency stage is muted in the absence of signals by applying to the stage, in the absence of such signals, a local high frequency oscillation of such a level that symmetrical limiting of positive and negative peaks of the oscillation occurs. In the circuit shown the output U2 of the second detector of the receiver is applied to the transistor audio amplifier TS2, TS3 together with the output of a high frequency oscillator TS1, L1, Cl. Symmetrical limiting of positive and negative peaks of the high frequency oscillation occurs so that the amplifier is rendered ineffective. An output U1 of the high or intermediate frequency stage of the receiver is rectified by a diode Dl to produce a voltage which, when the level of the received signal is sufficient, causes oscillation to cease and the audio amplifier to operate normally.
Patent GB-858156-A (GB)
Title: Spark plug insulators containing tho
Inventor: SCHURECHT HARRY GEORGE
IPC: C04B35/51
Filed: 1958-10-29
Abstract: A ceramic composition comprises, in parts, thoria 48,3 to 96,5; magnesia 0,6 to 33,9; calcia 0,8; alumina 0,4 to 38,6; and silica at least 2,2; the total silica not to exceed 5% In pressing to shape paraffin wax is added.  Mica amounts of titania and the oxides of zinc, tin and boron may also be present.
Patent GB-392108-A (GB)
Title: Improvements in and relating to hydraulic devices
IPC: F15B15/18
Filed: 1932-12-08
Abstract: 392,108. Fluid-pressure brakes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 8, 1932, No. 34842. Convention date, Dec. 9, 1931. Addition to 363,137. [Class 103 (i).] The apparatus of the parent Specification is modified by the driving motor 3 as well as the impeller 5 being carried by a hollow piston 2, and by the provision of return springs 8.
Patent GB-470158-A (GB)
Title: Automatic phase distortion correcting system for carrier wave signalling systems
IPC: H04B3/10
Filed: 1936-12-18
Abstract: 470,158. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd. Dec. 18, 1936, No. 34857. Convention date, Feb. 21. [Class 38 (iv)] [Also in Groups XXXIX and XL] Phase displacement.- Variations in phase distortion in the transmission of a wide band of frequencies, e.g. for television, due to temperature &c. changes are automatically compensated by the transmission of pilot currents subject to the same conditions. In the system shown two pilot frequencies f<1>, f<2> on either side of the television band and both harmonics of the same generator 10 are transmitted over the television cable 12 and are separated at an intermediate or receiving repeater by filters 17, 18. The lower frequency f<1> is stepped up by a harmonic generator HG2 and filter 19 to the other frequency f<2> and the two pilot signals, differing now only in phase, are applied to a thermocouple 23 controlling through a biassed double-contact relay 24 a reversible motor 25. By suitable adjustment of a phase-shifter 20 it is arranged that normally a certain number of the phase-distortion-equalizing sections PS0 ... PS3 are inserted, the number being increased or decreased according as the relay of low frequencies relative to high frequencies increases or decreases.
Patent GB-329949-A (GB)
Title: An improved two speed gear
IPC: F16H3/66
Filed: 1929-11-15
Abstract: 329,949. Royce, F. H. Nov. 15, 1929. Driving-gear.-In a two-speed epicyclic gear for driving the supercharger a<3> of an internal-combustion engine, the change from low to high speed is effected by applying a brake h to the carrier e<2> of stepped planet gears e<4>, e<5>. The smaller planets e<4> mesh with a sun wheel c fast on engine shaft a. The larger planets e<5> mesh with a sun pinion c<1> fast on the blower spindle a<4> and also with a loose internally-toothed ring f. Normally, ring f is kept from rotating forwardly by a detent g, and wheel e<5> rolls upon it driving pinion c<1> forwardly at increased speed relatively to the engine shaft. When carrier e<2> is held fast, ring f turns backwardly and pinion c<1> is driven forwardly faster than before.
Patent GB-1159476-A (GB)
Title: A Method for Fluid Extraction and Apparatus therefor
Inventor: DOYLE WLADZIA GAJDA PODBIELNIA
IPC: B04B5/06
Filed: 1966-08-04
Abstract: 1,159,476. Countercurrent contacting. W. G. P. DOYLE and C. M. DOYLE. 4 Aug., 1966, No. 35083/66. Heading B1F. In countercurrent fluid extraction apparatus the two fluids are caused to be dispersed into droplets of progressively varying size between the areas of introduction of the fluids, the minimum droplet size occurring adjacent the area of introduction of the fluid containing the substance to be extracted by the other solvent fluid. This droplet dispersal may be caused by moving the fluids through spaced apart perforations of progressively varying size, the perforations being in disc assemblies 45. Disc columns 42, positioned in radially extending cavities 60 formed by holes in concentric bands 40 positioned in a rotor 16, each consist of an elongated tie rod 41 on which are mounted a plurality of disc assemblies 45 in spaced relationship, each assembly consisting of two perforated discs one of which is stationary and the other movable relative to the tie rod, and indexing means to enable the movable discs to be rotated to vary the relative positioning of the perforations of the disc assemblies without removing the discs from the tie rod. The indexing means may comprise at least one indexing rod 56 extending through grooves 48 in the peripheries of the stationary discs and fixedly accommodated in peripheral openings in the movable discs, the grooves limiting the movement of the rod. The perforations are equally spaced around the discs and are identical for each pair of discs. The groove length corresponds to half the degree separation between adjacent perforations thus allowing relative positioning of the discs between fully open and closed positions (Figs. 8 and 10 respectively not shown). A threaded closure device 44 at the outer end of the column releasably locks the discs in a desired position. The indexing rod may be at an angle to the tie rod (Figs. 12 and 13) with one end adjacent one end of a groove of a disc and the other end adjacent the other end of a groove thus the perforation patterns of the disc assemblies vary progressively from the fully open position at one end to the fully closed position at the other end. Alternatively the indexing means may comprise co-acting perforations and projections on each pair of discs (Figs. 15-17 not shown) with the omission of the indexing rods.
Patent GB-1455048-A (GB)
Title: Power switches
IPC: H01H33/66
Filed: 1974-08-09
Abstract: 1455048 Vacuum switch electrode assembly SPRECHER & SCHUH AG 9 Aug 1974 [3 Sept 1973] 35242/74 Heading H1N A power switch, especially a vacuum switch, having a multi-plate arc-electrode assembly 9 associated with each of the contacts 3, 7, as in Specifications 1,363,010 or 1,425,611 is provided with a condenser 15 for arc vapours in at least one of the arc-electrode-assemblies at the end remote from the arc gap. The condenser may comprise a metallic sponge of wires or chips filling the spaces between plates, or it may take the form of perforated or slotted metal baffle plates shaped and oriented in various ways. Preferably the metal is degassified copper. The embodiments relate to the contact and electrode arrangements described in the afforementioned Specifications.
Patent GB-1550284-A (GB)
Title: Pipe coupler assembly
IPC: F16L37/091
Filed: 1977-08-23
Abstract: A pipe coupler assembly comprises a fitting which is securable to the ends of a pair of pipes. The fitting comprises a socket portion for receiving the pipe end. A plurality of tabs project rearwardly and outwardly from the socket portion and are disposed in circumferentially spaced relationship about a longitudinal axis of the fitting. The fitting also includes a circumferentially extending, radially outwardly open channel disposed forwardly of the socket portion. The channel extends radially inwardly relative to the socket portion and is adapted to receive a resilient seal ring. A generally radially extending shoulder is disposed between the tabs and the channel. This shoulder is adapted to engage an edge of the pipe end to limit insertion of the fitting. The assembly also includes a generally cylindrical, open-ended sleeve. The sleeve is sized to receive the fittings through axially aligned chambers thereof. The fittings are insertable into the chambers, with the tabs being initially inwardly flexed and then springing into securing engagement with recesses in the chambers, and with a seal ring in the channel being compressed sealingly against the chamber walls.
Patent GB-1349419-A (GB)
Title: Recirculating toilet
Inventor: MILLER M W
IPC: E03D5/016
Filed: 1972-07-28
Abstract: 1349419 Sanitary closets THETFORD CORP 28 July 1972 [20 Sept 1971] 35485/72 Heading E1C [Also in Division G1] A liquid level indicator for a recirculating toilet comprises a transparent prism 42 of a clear acylic plastics material mounted in a slot in the side wall of a container 14 so that the prism prismatic face is exposed to the interior and the flat face 44 to the exterior of the container 14. The slot extends from the level of an inlet of a recirculating pump 30 to the level of an outlet 18 of the water closet bowl 16. The two prismatic faces 46, 48 are inclined at 45 to the flat front face 44.
Patent GB-935229-A (GB)
Title: Process of reduction of transition metal halides
IPC: B01J27/06
Filed: 1961-10-02
Abstract: <PICT:0935229/III/1> <PICT:0935229/III/2> <PICT:0935229/III/3> Transition metal halides are reduced in an anhydrous liquid medium under non-oxidizing atmospheres in the presence of at least 30 times the stoichiometric quantity of a metal reducing agent having a smallest dimension of 0,3 mm.  The temperature range is -5 DEG  to 200 DEG C., and renewal of the metal surface is effected by circulation of the liquid medium or by mechanical agitation, small quantities of polar compounds may be added if desired. <PICT:0935229/III/4> The reactants may be contained in a cylindrical drum which may be rocked or rotated about its axis.  Specified reducing agents are aluminium, beryllium, magnesium, zinc, iron, copper and mixtures or alloys of these metals; liquid media specified are hexane, heptane, oxtane, cyclohexane, decalin, liquid paraffin, benzene, toluene, xylene, ethyl benzene, polyalkylbenzene, cumene, tetralin, naphthalene, diphenyl, diphenylmethane, bromobenzene, chlorobenzene, ethyl chloride and bromide, tertiary butyl chloride, benzyl chloride, tetrachloroethane, hexachlorobenzene, chlorinated paraffins, chlorinated naphthalenes and polyphenyls. In examples titanium tetrachloride was reduced using aluminium metal with (1) heptane, (2) cyclohexane, (3) cyclohexane and zinc chloride, (4) petrol and dimethyl silane, (5) ethyl benzene, 130 DEG C., (6) ethyl benzene, 40 DEG C., (7) toluene, (8) octane, (9) toluene and heptane, (10) cyclohexane, ethylbenzene, dimethyl silane, benzyl chloride and zinc chloride, (12) hexane, toluene, mercuric chloride and ethyl bromide, (13) hexane, toluene, stannic chloride, and ethyl chloride, (14) liquid paraffin, toluene, and dimethyl silicane, (16) decahydronaphthalene, tetrahydronaphthalene and beryllium chloride, (20) cyclohexane, toluene and boron trichloride, (23) decahydronaphthalene, and tricresyl phosphates, (24) toluene and isobutyl alcohol, (11) VCl4, MoCl5, VOCl3, VObr3, ZrCl4, MoBr4, MoF6, MoF4 and CrO2Cl2, all may be reduced using ethylbenzene, phenylmethyl silicane and aluminium metal, (15) alumin-beryllium alloys, (17) magnesium, (18) zinc, (19) aluminium and copper are used with various liquid media to reduce titanium tetrachloride.ALSO:Ethylenic compound are polymerized in the presence of organometallic compounds and a reduced transition metal halide (see Group III).  Ethylenic compounds are, ethylene, propylene, ethylene/propylene mixture, ethylene/a -butene mixture; organometallic compounds are monochlorodiethyl aluminium and triethyl aluminium.
Patent GB-349537-A (GB)
Title: Improvements in the focussing operation of kinematographic apparatus
IPC: G03B19/18
Filed: 1929-11-22
Abstract: 349,537. Focusing-devices for kinematographic cameras. MERY, J., 1, Avenue du Chemin de Fer, Epinay-sur- Seine, France. Nov. 22, 1929, No. 35761. Convention date, Nov. 24, 1928. Void [Published under Sect. 91 of the Acts]. [Classes 97 (i) and 98 (i).] Relates to focusing devices for kinematograph. cameras in which there are two objectives and apertures, one for sighting the image on a focusing screen, the film passing across the other, and prisms and closure shutters movable alternately behind the apertures so that the image may be observed by means of one of the prisms on a ground glass and by means of the other on the film itself. In the construction according to the Specification an image-rectifying viewing eyepiece 34, Fig. 1, is carried by a mount 34a slidable in a guideway 35 on the side of the camera, and can be made to follow the vertical displacement of the shutters 11, 11a, Fig. 3, and associated prisms within the camera, or can be moved independently by hand. The shutters 11, 11a are provided with spring- controlled latches 29 which slide laterally across the shutters and have noses 32 engaging fixed vertical slides 33 within the camera, thereby allowing the shutters and prisms to slide whilst latched.
Patent GB-1450890-A (GB)
Title: Labels
IPC: G09F3/02
Filed: 1975-08-30
Abstract: 1450890 Labels SPJ LABELS Ltd 30 Aug 1975 35852/75 Heading B8F A label strip 10 comprises an elongate backing and a plurality of separate labels 11 detachably secured to the backing along its length, the strip having regular wavy edges symmetrical about its centreline and having symmetrical opposed weakened or cut-out portions formed in the edges. The strip may thus be used in a dispenser in which the strip is located for a printing step by the wavy edges, or in a dispenser having a drive sprocket which can engage the weakened or cut-out portions. As shown, the weakened portions comprise slits 16, each formed mid-way between each edge peak 12 and each trough 13, but slits may be located only between each peak and the following trough. In Figs. 1 and 2 (not shown), the slits are replaced by cut-out portions each in the shape of a quadrant of a circle.
Patent GB-753646-A (GB)
Title: Gravity seperating apparatus for liquid suspensions
IPC: B01D21/00
Filed: 1954-12-10
Abstract: 753,646. Gravity-separation apparatus. NATIONAL RESEARCH COUNCIL. Dec. 10, 1954 [Jan. 5, 1954], No. 35888/54. Class 46. Gravity-separation apparatus for removing solid or liquid particles from a liquid suspension thereof comprises a container 9 having parallel rectangular side walls 10, 10a inclined from the horizontal between 40 and 60 degrees, a plurality of spaced baffles 15 parallel to said inclined walls forming classification compartments within the container, top and bottom outlets 14, 13 for light and heavy separated components and a suspension feed duct 11 having upwardlydirected outlets 17 located on the underside of each baffle 15. The outlets 17 are provided in branch ducts 16 of the feed duct 11.