baber/WOPTO huggingface dataset:
Patent GB-755404-A (GB)
Title: Improvements in rotary volumetric type pumps
IPC: F04C14/22
Filed: 1954-11-30
Abstract: 755,404. Rotary pumps. U.B.I. UTILIZZO BREVETTI INDUSTRIALI SOC. PER AZIONI. Nov. 30, 1954 [Nov. 30, 1953], No. 34625/54. Class 110(2) A rotary reversible pump of variable capacitycomprises a rotor 14 rotatable about a fixed axis and a rotary cage, an outer casing 1 and a stator 19 which are adapted to be oscillated about the inlet means 4 in order to vary the capacity and direction of the pump. The rotor is formed with holes 16 containing springs 17 for forcing anti-friction segments 86 outwardly into engagement with side plates 27, 28 carried by the member 4. The cage, for details of which see Figs. 5-21 (not shown), is rotatably mounted in grooves 34, 35 in the side plates with the interposition of rollers 38, the vanes 46 of the cage being positioned between wedges 65, 66 carried by the rotor. The plate 28 is slotted to receive a plate 70 forming a seating for a toothed ring 72 which meshes with a rack 74 carried by a cylinder 75. The cylinder is subjected to the delivery pressure of the pump and is spring-loaded to effect movement of the stator and rotary cage about the member 4. Return passages 25, 90 for pressure equalization purposes, bearings and seats are provided as shown. If desired, the stator and rotary cage may be moved manually.
Patent GB-521929-A (GB)
Title: Improvements in and relating to processes and apparatus for removing the dressing from woven materials
IPC: D06B3/16
Filed: 1938-11-28
Abstract: 521,929. Liquid treatment of woven materials. MULLER, W. Nov. 28, 1938, No. 34631. Convention date, Dec. 6, 1937. [Class 15 (i)] Dressing is removed from woven material by passing it through a bath of de-sizing material on the periphery of a rotating drum and allowing it to fall in folds in the liquor as it leaves the drum before it is removed from the bath. The fabric 1 may be fed to the periphery of a rotating drum 3 by a feed roller 2 and is carried thereon through a de-sizing bath in a vessel 10. It falls in folds from the drum on the exit side into the bath from which it is withdrawn under a guide bar 12 extending across the vessel 10. The drum 3 is perforated to permit free access of the bath to both ends of the fabric and steam to heat the bath is supplied through a pipe 5 about which the drum rotates and a branch pipe 9 which is connected at both ends to the pipe 5.
Patent GB-1036148-A (GB)
Title: Improvements in or relating to alloys
Inventor: DUNLOP ADAM
IPC: C22C19/05
Filed: 1963-09-03
Abstract: A nickel alloy has the following percentage composition:  .C.0.05-0.5 .Cr.3-10 .Co.0-20 .Al.2-8 .W.2-20 and/or .Mo.1-10 .Nb.>3-7 and/or .Ta.2-14 .B.0.001-0.1 .Zr.0-0.3 Ni (at least 40) the remainder  Ta and twice Nb should be between 2 and 14.
Patent GB-428349-A (GB)
Title: Improvements relating to electric motor control systems
IPC: H02P1/32
Filed: 1934-12-03
Abstract: 428,349. Master control of motors ; thermal switches. ELECTRICAL APPARATUS CO., Ltd., BARBOUR, R. H., and WALTON, J. R., Vauxhall Works, South Lambeth Road, London. Dec. 3, 1934, No. 34737. [Classes 38 (iii) and 38 (v)] In an automatic motor - starting system with at least one thermal relay controlling the time of a change in connections during the starting or running up of the motor, the relay is compensated for variations in the ambient temperature. The invention is shown as applied to a stardelta starting system embodying a thermal relay TR in the form of a bimetallic strip connected to the secondary winding SW of a transformer T. Closure of the starting button ST energizes the contactor SC which makes the star connections to the stator S of the motor, the circuit including contacts 22, 23 of an overload and single-phasing cut-out OS of the kind described in Specification 382,695. The contactor SC energizes the line contactor LC at its contacts 7, and a holding circuit is established at the contacts 7, 15 so that the button ST may be released. The primary winding PW transformer T is at the same time connected across the lines L1, L3. After an interval, the thermal relay TR engages its contacts 10 and energizes a relay SR which opens the energizing circuit of the contactor SC. The energizing circuit of the contactor DC making the delta connections is thereupon closed at the back contacts 12 of the contactor SC, and the circuit of the primary winding PW is interrupted at the contacts 9 of the contactor DC. The thermal relay may comprise fixed and movable contacts a, b, Fig. 3, each carried by similar bimetallic strips f, c, so that the distance separating the contacts is independent of the ambient temperature. In order to adjust the sensitivity of the device, the strip c is provided with a shunt k, Fig. 2, the effective length of which is adjusted by means of a slidable clamp m carrying a pointer n co-operating with a scale o.
Patent GB-433114-A (GB)
Title: Improvements in and relating to roll grinding machines
IPC: B24B5/16
Filed: 1934-12-04
Abstract: 433,114. Grinding rolls. NORTON CO., New Bond Street, Worcester, Massachusetts, U.S.A. Dec. 4, 1934, No. 34806. Convention date, Dec. 4, 1933. [Class 60] In a machine for grinding rolls with a predetermined crown or camber, the work and grinding wheel are mounted on supports movable longitudinally relatively to one another, and one support is adapted to be oscillated about a pivot during such relative movement by fluid pressure means controlled by guiding or forming means, so producing the desired camber. In the machine shown diagrammatically in plan, the work 16 is rotatably carried between head or tail stocks on a swivel table 12 pivoted at 13 on a longitudinally movable table 11, and is ground by a wheel 17, which may be fed to and from the work by mechanism operated by hand or by adjustable dogs on the table 11 at the end of the strokes of the table. As the table traverses, it carries a slide 66 along a bar 63 of adjustable inclination, which causes movement of the piston 60 of a cylinder 61 and so produces a flow of fluid within a closed system comprising the cylinder 61 and two cylinders 35, 36 the pistons 37, 38 of which are connected through links 41, 42 to the ends of the swivel table 12. The pistons 37, 38 move differentially and cause the necessary gradual swivelling of the table 12 during its traverse to produce the required camber on the roll, the degree of camber being variable by adjustment of the angle of the bar 63. The area of the piston 60 is preferably considerably less than that of the pistons 37, 38 in order to produce a reduction in the movement. In order to counteract the bowing or spring of the table 12 under the working stresses, it is initially strained in the reverse direction by forces applied at its ends and produced by subjecting the fluid in the spaces above the pistons 37, 38 to pressure by means of screw-down plungers 94, 95 in cylinders connected to these spaces ; this also eliminates lost motion at the links 41, 42. A pressure-adjusting cylinder 100 containing a spring-pressed piston maintains the fluid beneath the pistons 37, 38 under pressure; so ensuring equal movements ! of these two pistons ; it also compensates for adjustment of the plungers 94, 95.
Patent GB-929034-A (GB)
Title: Process for the manufacture of monomeric chloroacetaldehyde
Filed: 1961-09-28
Abstract: Monomeric chloroacetaldehyde is produced by heating trimeric chloroacetaldehyde to a temperature of 100 DEG  to 300 DEG C. in the presence of 0.1 to 20% by weight, with reference to the trimeric chloroacetaldehyde, of a carboxylic acid, the monomeric aldehyde formed being distilled of simultaneously.  Specified acids are oxalic acid, terephthalic acid and halogenoacetic acids such as trichloroacetic acid; mixtures of the acids may be used. Examples are given, together with comparative results obtained using sulphuric acid and toluenesulphonic acid.
Patent GB-1453716-A (GB)
Title: Circular side positive drive belt teeth
IPC: F16H7/02
Filed: 1973-07-20
Abstract: 1453716 Belt gearing GOODYEAR TIRE & RUBBER CO 13 June 1974 [20 July 1973] 34840/73 Heading F2Q In a positive drive belt formed of a resilient elastomer reinforced with one or more reinforcing members extending along and thereby defining the pitch line with a succession of identical teeth 3 uniformly spaced apart by their pitch P, 4, and having a notional tooth width W, less than P, each tooth 3 has its flank surfaces 9 shaped in cross-section as the arc of a circle of radius W, 7, centred on the pitch line at centres 5, 6 spaced at a distance W apart. The ratio W : P lies between 0À33 : 1 and 0À8 : 1. The tooth flanks may be reinforced with abrasionresistant fabric. A pulley 13 suitable for use with the belt comprises a purality of cavities 14 adapted to accommodate the belt teeth 3. Each cavity may be constructed by circular arcs 20 centred on points 18, 19 on a pitch circle 15, the points 18, 19 being spaced apart the tooth width W, 7, and the arc radius being the tooth width W plus a clearance factor. In a modification, the spacing of the points 18, 19 is made equal to the arc radius.
Patent GB-367438-A (GB)
Title: Advertising devices
IPC: G09F11/34
Filed: 1930-11-20
Abstract: 367,438. Changing signs. DAVIS, H. M., 10, Lock Street, Buffalo, New York, U.S.A. Nov. 20, 1930, No. 35005. Convention date, Nov. 20, 1929. [Class 3 (i).] Relates to advertising devices of the kind in which two groups of cards or the like are mounted in a display frame and the cards are transferred from group to group by a reciprocating carrier and particularly to improvements in the construction set out in Specification 118,996, [Class 3 (i), Advertising and displaying apparatus, Moving &c.] to secure noiseless operation. The cards are supported on guides 62, 63, Figs. 5, 9, mounted on plates 53, 54, and are transferred from the one guide to the other by the carrier 30, Figs. 6, 7. This carrier is reciprocated on a channel frame 8 by an endless chain 24 which is driven by a motor 1 through a sprocket 9 and connected by a bar 35 to a guide sleeve 34 on the carrier. When the carrier rises, pivoted catches 47, 48, Figs. 7, 9, thereon lift one of the cards from the lower guide and deposit it on the upper one. Meanwhile catches 40, 41 have engaged a card on the upper guide which they deposit on the lower guide during the descent of the carrier. Pivoted latches 68, Fig. 9, on the upper guides prevent a card passing to the lower guides on the catches 47, 48. Strips of felt or other material at 32, 55, 56 prevent metal to metal contact between the frame 8, the carrier 30 and the plates 53, 54. Vibration absorbing means such as rubber is provided between the casing 2, Fig. 5, and a resilient support 14 of the motor 1.
Patent GB-1450872-A (GB)
Title: Self-propelled combine harvester with pivotally mounted  grain tank outlep pipe
IPC: A01D41/12
Filed: 1974-08-08
Abstract: 1450872 Combine harvester grain discharge control CLAAS MASCHINENFABRIK GmbH Gebr 8 Aug 1974 [20 Aug 1973] 35034/74 Heading A1F A combine harvester grain tank discharge pipe screw conveyor 10 receives its drive via a Cardan shaft 11 whose universal joint 13 is driven by the worm shaft 4 of the grain tank conveyor. When the worm shaft 4 is stopped the universal joint may not be in a rotational position which would allow pivoting of the discharge pipe 8 without damage. To prevent this the pipe 8 or swivel housing 7 is provided with a stop 16 which, upon pivoting of the pipe 8, engages one of four pegs 15 (if the joint position is potentially dangerous) mounted on an annular flange 14 fixed to the worm shaft 4. The resultant 45‹ indexing of the peg places the universal joint in a rotational position which allows damage free pivoting of the discharge pipe. The stop 16 comprises a roller 19, which is to engage the pegs 15, and a ramp 21 which prevents a peg 15" from taking the position of peg 15' after the latter has been engaged by the roller.
Patent GB-1435158-A (GB)
Title: Traffic light conversion kit
IPC: G08G1/095
Filed: 1973-07-23
Abstract: 1435158 Lamps MINNESOTA MINING & MFG CO 23 July 1973 [24 July 1972] 35036/73 Heading F4R A kit for enlarging the size of a traffic light signal comprises a Fresnel-type positive lens 20 having a focal length of 20 to 25À4 cm. disposed at the larger end of a tapered frame 12 and a light-transmitting diffuser 14 disposed at the smaller end, at least a portion of the diffuser being closer to the lens than to its focal point. The kit is intended to be fastened to the door 6 of a traffic light in place of the conventional lens. The Fresnel lens 20 is inclined to the vertical at an angle of 5 degrees and has a sun shield 24. The diffuser 14 is made from coloured glass and has a roughened surface.
Patent GB-1077682-A (GB)
Title: Metal-reduced transition metal halide catalyst
IPC: C08F4/64
Filed: 1964-08-26
Abstract: Polymerization of olefines, e.g. ethylene, propylene, butenes, styrene and other a -olefines containing up to 10 carbon atoms, e.g. butadiene, isoprene and 1:3-pentadiene, is effected in the presence of a catalyst prepared from a transition metal compound, a Group I, IIa, IIb or IIIa metal and a liquid organic halide. Polymerization may be effected at 0 DEG  to 250 DEG  C. and from atmospheric pressure to 20,000 p.s.i. or higher in solvents such as xylene, toluene or tetrahydronaphthalene from which polymer is precipitated on cooling.  Examples are given, in which propylene, 3-methyl-1-butene, 4-methyl-1-pentene, 3-methyl-1-hexone, ethylene and 3:5:5-trimethyl-1-hexene are polymerized and a mixture of propylene and 1-butene copolymerized.ALSO:A polymerisation catalyst is made by reducing a "transition metal compound" with a metal selected from Groups I, IIa, IIb or IIIa of the Periodic Table and contacting after the reduction with a liquid organic halide. Tranistion metal compound is defined as a halide or alkoxyhalide of a metal from Group IVb, Vb or VIb of the Periodic Table.  Specified transition metal compounds are:- TiCl4, ZrCl4, TiBr4, TiI4, (C4H9O)2, TiCl2, VCl4, CrCl3, MoCl5, (EtO)2 TiCl2; reducing metals specified are Li, Na, K, Rb, Cs, Be, Mg, Zn, Ca, Sr, Ba, In, Tl, Al, Ga. Co-reducing agents, e.g. LiAlH4 and diaryl ethers as complexing agents may also be used.  Numerous examples of organic halides are given.
Patent GB-847910-A (GB)
Title: Improvements in or relating to moving coil electric relay circuits
Inventor: LOVEGROVE HENRY JOSEPH
IPC: H01H53/015
Filed: 1955-12-08
Abstract: 847,910. Electromagnetic relays. SANGAMO WESTON Ltd. Dec. 7, 1956 [Dec. 8, 1955], No. 35311/55. Class 38 (5). A relay circuit arrangement, Fig. 1, comprises a moving coil relay M having an operating winding P, a contact pressure reinforcing winding Q shunted by a variable resistance S, and a moving contact m operating between fixed contacts ml, m2. A mechanical torque may tend to move the contact m towards contact m2. On engagement of the contacts m, m1, due to current of a certain polarity in the winding P, a circuit is completed from an auxiliary supply X, winding Q, the normally closed contact b of attracted armature type relay B, the winding of attracted armature type relay A/2, to   the other terminal of the supply X. The winding Q augments the pressure between the contacts so that the contact resistance is lowered A to an extent such that the relay - operates to 2 close its normally open contacts a1 thereb short-circuiting the coil Q and establishing a holding circuit for itself through contacts a1 b. Also, further contacts a2 of the relay A/2 are closed to control a line l1, l2. Thus should vibration separate the contacts m, m1 the arrangement is unaffected and the contacts are not damaged by sparking. On engagement of the contacts m, m2 due to a reduction, or reversal of polarity, in the current in the winding P, a circuit is completed from the supply X, through relay B, winding Q, contacts a1, to the other supply terminal. The winding Q reduces the contact resistance so that relay B operates to open contacts b whereupon relay A/2 releases and the contact m is free to move once more towards contact m1 upon a further change in the current through P. In a modification, Fig. 2, A the relay B is omitted and the relay - is 2 differentially wound having an operating winding a which when energized upon closure of contacts m, m1 closes its contacts a1, a2, and an opposing winding b which when energized upon closure of contacts m, m2 releases the relay A/2. To increase the speed of movement of the contact m from contact m1 to m2 a variable resistance may be connected between the contact m and the negative terminal of the source X (Fig. 3, not shown) whereby a circuit is completed through the winding Q immediately the contact m leaves the contact ml. In a further modification a single winding may replace the two windings P, Q.
Patent GB-1243272-A (GB)
Title: Anodizing aluminium
Inventor: NEWMAN FREDERICK S
IPC: G05F1/45
Filed: 1969-07-14
Abstract: 1,243,272. Anodizing aluminium. SCIONICS CORP. July 14, 1969 [Sept. 9, 1968], No. 35382/69. Heading C7B. [Also in Division G3] In a method of anodizing Al or an alloy thereof, e.g. containing Cu, Mg or Si, to produce dyeable coatings e.g. 0À2-0À4 mil thick, positive and negative pulses of current are alternately passed through an anodizing bath, e.g. containing 5 to 25% by volume H 2 SO 4,  from individually adjustable circuits so that the ratio of mean negative to positive current is 3 to 20%. The mean negative and positive currents are preferably kept constant regardless of voltage variations across the bath. Each half cycle of A. C. source 24 supplied through transformer 28 to the anodizing tank 10 may be controlled or monitored using a pair of parallel connected SCR (silicon controlled rectifiers) 20, 21 for the supply of heavy positive current and SCR 22 for the supply of smaller negative current through the bath, control signals 99 being applied to the gate electrodes of rectifiers 20-22 which, with respective ammeter shunts 33, 26, connect taps 29E, F of the transformer secondary winding 29 to the earthed tank 10. The bath may be agitated using compressed air and refrigerated. Alternatively, the positive pulses may be prolonged into a continuous current by connecting a reactive impedance in circuit, e.g. a capacitor in parallel or an inductor in series, with the bath, the other circuit being adjusted to prevent flow of negative pulses. Single- or multi-phase currents of sine or square wave or sharply peaked form may be used.
Patent GB-968714-A (GB)
Title: Analeptically active n-substituted amino-norcamphane derivatives and their addition salts with acids and their quaternary ammonium compounds
IPC: C07D211/76
Filed: 1961-09-29
Abstract: The invention comprises compounds of the general formula: <FORM:0968714/C1/1> (wherein R1 represents a phenyl radical optionally carrying one or more C1-3 alkyl radicals, R2 represents a C2-5 alkenyl or alkynyl radical, or a C2-5 alkyl radical substituted by a halogen atom, a hydroxy or C1-3 alkoxy radical or by an amino group wherein one or both hydrogen atoms may be replaced by C1-3 alkyl radicals or the nitrogen atom may be a constituent of a 5- or 6-membered ring, and R3 represents one of the radicals given for R2 or a hydrogen atom or a C1-3 alkyl radical, or R2 and R3 jointly form with the nitrogen atom a saturated 5- or 6-membered ring not containing any further hetero-atom but substituted by =O, OH, halogen and/or a C1-3 alkyl radical) and their acid addition salts and quaternary ammonium compounds, and the preparation thereof by introducing the desired substituent or substituents by known methods on the nitrogen atom of the corresponding primary amines, and, if desired, converting the products into quaternary ammonium salts or addition salts with physiologically harmless acids.  The products have analeptic activity.  Several methods are described for introducing the desired substituents directly or in two or more stages, the latter processes involving the production of the following intermediates:-  2-R1-3-(o -haloalkanoyl)-aminonorcamphanes by reacting the primary amines with o -haloalkanoyl halides. 2-R1-3-(o -aminoalkanoyl)-aminonorcamphanes by reacting the foregoing o -halo compounds with amines. 2-R1-3-di-(carbalkoxyalkyl)-aminonorcamphanes by reacting the primary amines with esters of a ,b -unsaturated carboxylic acids or of halocarboxylic acids.  2-R1-3-(31- or 41-carbalkoxy-41- or 31-oxopiperidino- or pyrrolidino)-norcamphanes by subjecting the foregoing di-(carboxyalkyl) compounds to ring closure according to Dieckmann (e.g. with sodium in xylene).  2-R1-3-(d -carbalkoxybutyl- or g -carbalkoxypropyl)-aminocamphanes and the corresponding free carboxy compounds by reacting the primary amines with o -halo-valeric or -butyric esters and saponifying the ester group.
Patent GB-1281884-A (GB)
Title: Gas turbine engine power plant
Inventor: JUBB ALBERT
IPC: F01D21/14
Filed: 1968-07-25
Abstract: 1281884 Gas turbine plant ROLLS-ROYCE Ltd 23 July 1969 [25 July 1968] 35456/68 Heading F1G In a gas turbine engine power plant having an air inlet for supply of air to the engine through an air inlet duct, means are provided for closing the air inlet and further means are provided for diverting at least part of the engine exhaust gases from the engine into the inlet duct when the air inlet is closed. The plant shown comprises a gas turbine engine 10 which is utilized as a gas generator, the engine exhaust gases discharging into plenum chamber 32 and thence to separate power turbine 36 which drives a useful load. In normal operation air passes through air inlet 16 and inlet duct 14 to the engine 10 and exhaust gases from the turbine 36 discharge through duct 34 to the exhaust outlet 38. A plate valve 18 co-operating with a seat 20 is disposed adjacent the inlet 16 and a plate valve 40 co-operating with a seat 42 is disposed adjacent the outlet 38. A duct 44 is connected to the exhaust duct downstream of the turbine 36, the duct 44 terminating in a plurality of ducts 46 which extend below the surface level of water in a chamber 50. A duct 54 of angled form extends from the chamber 50 to the inlet duct 14. Should it be necessary to suddenly shut down the plant, the inlet valve 18 and the fuel supply are closed and the exhaust valve 40 closes simultaneously. The exhaust gases from the turbine 36 then pass through duct 44 and ducts 46 into the water in chamber 50. The cooled exhaust gases then pass through duct 54 to the inlet duct 14 and so back through the gas turbine gas generator 10 and power turbine 36; this reduces the possibility of damage to the engine due to stalling which might otherwise be caused when the external air supply is shut off. The duct 54 is shaped as shown to allow water carried over by the exhaust gases to return to the chamber 50. Alternative arrangements for the chamber 50 are described.
Patent GB-208645-A (GB)
Title: Improvements in electric fire alarms
IPC: G08B17/06
Filed: 1922-12-30
Abstract: 208,645. Edwards, A. H. Dec. 30, 1922. Alarms operated by fusible devices.-An automatic electric contact device for fire alarms comprises two semi-conical metal strips d mounted in a porcelain base a, the pointed ends of the strips being tinned and provided with fusible metal g which, on melting, makes electric connection between them. The semi-cones are coated with flux to ensure good contact. The device may be used in an ordinary bell circuit.