baber/WOPTO huggingface dataset:
Patent GB-1122347-A (GB)
Title: Improvements in stretch forging machines
IPC: B21J7/18
Filed: 1967-04-24
Abstract: 1,122,347. Forging. KOGKS-WERMELSKIRCHEN G.m.b.H. 24 April, 1967 [11 May, 1966], No. 18797/67. Heading B3H. A machine for stretch forging a ductile material 1, particularly a metal, comprises a pair of walking jaws 2, 3 movable towards and away from each other and also parallel with the material by a driving mechanism for each jaw consisting of two transverse links 10, 11 pivoted to rotating eccentrics 6, 7, and a third link 14, arranged parallel with the material, pivoted at 20 to the link 11 and to a further rotating eccentric 18, all the eccentrics being rotated at the same speed. The connection of links 11, 14 is adjustable by a screw 22 to varying the advancing movement of the material through the machine. During the return movement of the jaws the material may remain stationary or be advanced by a second pair of jaws which may be disposed in a plane transverse to the jaws 2, 3.
Patent GB-872463-A (GB)
Title: Improvements in or relating to power supply equipment
Inventor: KELLY RICHARD
IPC: H02H3/093
Filed: 1958-06-12
Abstract: 872,463. Protective cut-out arrangements. STANDARD TELEPHONES & CABLES Ltd. Dec. 15, 1958 [June 12, 1958], No. 18800/58. Class 38 (5). A protective system for a power supply arrangement includes a relay CMR arranged to operate when the current IL in a supply line deviates from a particular value by a predetermined amount, a normally discharged capacitor C and means to charge the capacitor upon operation of the relay via the coil of the relay in such a direction that the operation of the relay is opposed. In Fig. 1, a small excess current causes the relay CMR to close contacts H to complete the operating circuit for a further relay coil (not shown). The further relay changes over its contacts VHCD4 so that the capacitor C is charged through a resistor R1 and the coil of the relay CMR from an auxiliary source V1. The charging current flows through the relay coil in the opposite direction to the load current so that the relay CMR opens its contacts H. If the excess current still remains, the relay CMR operates again, when the charging current has decayed sufficiently, to cause the operation of a relay to shut down the power supply unit. Should the excess current exceed the permitted instantaneous overload value, the charging current is not sufficient to cause the relay CMR to open and the power unit is instantly shut down. Figs. 2 and 3 (not shown), illustrate an arrangement in which operation is produced in response to either overload or underload conditions. In the latter case the direction of the charging current is the same as that of the load current, so that the relay CMR having closed its underload contacts L is caused to reopen them again to produce a similar operating sequence to that described above.
Patent GB-595789-A (GB)
Title: Improvements relating to pianoforte actions
IPC: G10C3/16
Filed: 1944-06-12
Abstract: 595,789. Pianoforte actions. HEALEY, A. E., and HERRBURGER BROOKS, Ltd. June 12, 1944, No. 18817. Divided out of Complete Specification of 565,425. [Class 88 (ii)] A flinge or other part of a piano action associated with a hinge or pivot is formed by cutting or shaping it by a cutting action from a sheet or strip of non-metallic material which is inherently damp and moisture-proof or moisture repellent. The material may consist of a thermosetting resinous composition, of laminations of fibrous material bonded together by a heat-hardening resin, or by wood which prior to the cutting operation is treated with a plastic or resinous composition to render it damp or moisture-proof or moisture repellent. The hinge' apertures may have cloth bushings as in Specification 565,425.
Patent GB-250801-A (GB)
Title: Improvements in or relating to gear wheels
IPC: F16H55/12
Filed: 1925-07-24
Abstract: 250,801. Lees & Co., Ltd., A., and Taylor, R. July 24, 1925. Toothed wheels; intermittent toothed gearing.-Bars x to form the teeth of spur, bevel, and worm wheels are inserted in rectangular or dovetailed slots 9 in the body 7 of the wheel and have sloping end faces which may register with corresponding faces 10 on the body, so that similarly sbaped end plates 11 may be screwed into position to hold the teeth firmly in place. In a modification, the slots 9 are dispensed with, in which case the bevelling of the end faces of the body 7 may be omitted, and spacing-pieces either separate or formed integrally with the teeth ensure proper positioning of the teeth. Whether the slots 9 are or are not provided, lugs may be formed on the plates 11 to engage between the teeth. The bars x are machined to tooth form after the wheel is assembled. Teeth may be separately removed for replacement or to form mutilated wheels of variable form, for example for use in machines for spinning different ki@ of fancy yarns.
Patent GB-1151748-A (GB)
Title: Granular Enzyme-Containing Laundry Composition
IPC: C11D11/00
Filed: 1967-04-25
Abstract: 1,151,748. Enzyme-containing detergents. PROCTER & GAMBLE CO. 25 April, 1967 [25 April, 1966; 6 March, 1967], No. 18930/67. Heading C5D. A granular laundry composition comprising a powdered enzyme composition attached to a water-soluble granular carrier, which carrier comprises 20 to 100% by weight of a partially hydrated hydratable salt having a pH in aqueous solution of from 4 to 12 and a vapour pressure not in excess of 13.15 mm. of mercury when measured at atmospheric pressure and at 20‹ C. and in which the enzyme composition comprises 2 to 80% by weight active enzyme in admixture with an inert vehicle and is attached to the hydratable salt by the hydration of the hydratable salt hydrated not in excess of 90% of its hydration capacity by weight, is prepared by a process which comprises contacting the granular carrier with powdered enzyme in the presance of sufficient water to partially hydrate the hydratable salt. Many examples of salts are listed and mixtures of such salts can be used. The salt can be used either per se as the granular carrier or can comprise a portion of a multicomponent granular carrier wherein the other components can comprise diluent salts, organic detergents, detergency builder salts not having the necessary hydrate characteristics and other detergent composition components of the usual type. Suitable enzymes include hydrases, oxidoreductases, desmolases, transferases, isomerases and preferably hydrolases, e.g. proteases, esterases, carbohydrases and nucleases, and mixtures of enzymes may also be used. Suitable organic detergent compounds include soap and anionic, nonionic, ampholytic and zwitterionic synthetic detergents and mixtures thereof. The usual detergent additives may also be included in the laundry composition.
Patent GB-807496-A (GB)
Title: Aqueous dispersions of polychloroprene and processes of making them
IPC: C08F36/16
Filed: 1957-06-17
Abstract: An aqueous dispersion of polychloroprene contains as a dispersing agent a mixture of rosinates corresponding to 2 to 5 parts of rosin per 100 parts of polymer, the rosinate mixture comprising 2 to 30 mol. per cent of alkali metal rosinates and the remainder ammonium or alkyl amine rosinates derived from amines boiling below 125 DEG  C. (e.g. methylamine, dimethylamine, triethylamine, propylamine or butylamine), the total amount of alkali metal in the dispersion being not more than 0.15 part per 100 parts of polymer.  The rosinate may be derived from rosin, hydrogenated rosin or disproportionated rosin. Preferably aqueous emulsion polymerization of the chloroprene is effected in presence of the mixed rosinate.  However, polymerization may be effected in presence of alkali metal rosinates only, followed by removal of unchanged chloroprene and then (a) replacing part of the alkali metal ions by ammonium or amine ions by ion-exchange, (b) replacing the alkali metal ions completely by ion-exchange and then adding alkali metal rosinate or (c) creaming the dispersion (e.g. with an alginate), separating the clear layer containing the dispersing agent and then adding rosinates.  Emulsion polymerization may be effected in presence of catalysts, e.g. benzoyl peroxide, alpha, alpha1-azo - bis - isobutyronitrile, ammonium persulphate (if desired with potassium sulphite and the sodium salt of anthroquinone beta-sulphonic acid) and also, if desired, in presence of sulphur or mercaptans.  Additional dispersing agents, e.g. salts of aromatic sulphonic acids, may be used.  Polymerization may be arrested by adding a mixture of thiodiphenylamine and para-tertiary butyl catechol or tertiary butyl cresol.  Uncharged chloroprene may be removed from the latex by passing the latex with steam through a pipe under conditions of turbannular flow. The polymer may be isolated from the latex by drum drying or spray drying.  In examples: (1)-(4) chloroprene is polymerized in aqueous media containing disproportionated wood rosin neutralized partly by ammonia and partly by potassium hydroxide, sodium hydroxide or lithium hydroxide, dodecyl or octyl mercaptan, potassium sulphite, the sodium salt of sulphonated dinaphthyl methane, ammonium persulphate and the sodium salt of anthroquinone beta-sulphonic acid; the product is vulcanized with a mixture of magnesium oxide, zinc oxide, phenyl betanaphthylamine and 2-mercapto-thiazoline; (5) chloroprene is polymerized in aqueous media comprising disproportionated rosin partly neutralized by sodium carbonate and partly by ammonia, sulphur, the sodium salt of sulphonated dinaphthylamine and ammonium persulphate; at the end of the polymerization tetramethyl thiuramdisulphide is added to the latex.  Specifications 425,751, 497,420, 497,638, 497,706, 504,466, [all in Group IV], 504,467, [Group V], 529,838, [Group XXXVI], 582,700, [Group IV], and U.S.A. Specifications 2,467,769, 2,471,959, 2,494,087 and 2,576,009 are referred to.
Patent GB-751672-A (GB)
Title: Improvements in or relating to filters for electric line systems
IPC: H01P1/20
Filed: 1954-06-30
Abstract: 751,672. Filters. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 30, 1954 [June 30, 1953], No. 19207/54. Class 40 (8). A symmetrical line filter with more than critical coupling comprises three susceptances in series the value b 2  of the middle susceptance being related to the value b 1  of each of the outer susceptances by the relation where a=k##<SP>1</SP>/#, # being the middle frequency of the filter, #f<SP>1</SP> half the band width between the maxima of the attenuation curve and k being approximately equal to 3. Where the susceptances take the form of capacitative irises, Figs. 2a, 2b, they are positive and k=3.3. Inductive irises providing a negative susceptance may be used (Figs. 1a, 1b not shown) in which case k=3. The irises may be in the form of centrally situated circular apertures. Where a coaxial line is used, Fig. 4, the irises take the form of annular apertures in diaphragms 41, 42, 41. A modification is described in which the susceptances comprise short-circuited coaxial stubs (Fig. 3, not shown). The invention may be applied to a lecher line, the susceptances being formed by connecting short circuited lines across the main line. The distance between the susceptances is given by where #g corresponds to the centre frequency of the filter. The Specification gives a full mathematical treatment of the filter.
Patent GB-932194-A (GB)
Title: Vacuum control valve
Inventor: AUBERT GILLES
IPC: F16J13/02
Filed: 1961-05-29
Abstract: 932,194. Valves. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 29, 1961 [May 27, 1960], No. 19294/61. Class 135. A vacuum control valve comprises a closure flap 1 co-operating with a seat 12, swivel pins 2 engaging with eye bearings 3 secured to control rods 4, an operating member 19 controlling the axial displacement of the rods via nuts 17 screwed thereon, and fixed stops 13 provided with abutments 14, 15, 16 arranged to cooperate with bearing means 9, 10, 11 in order, by displacement of the rods, to control the swinging of the flap from its closed to its open position. The control rods are moved axially by the nuts 17 which are rotated by pinions 18 meshing with a gear-wheel 19, the latter being rotated by handles 20. The swivel pins 2 are secured to members 9 on which are provided journal pins 10 carrying ball bearings 11. In operation, rotation of the gear 19 causes the rods to be raised thereby lifting the closure flap off its seat 12, which is of metal such as indium. Continued movement of the rods brings the bearings 11 into engagement with the abutments 14 thereby rotating the flap perpendicular to its seat, the flap coming to rest when the member 9 finally contacts the abutment 15. On closing the valve, the ends of the journals 10 engage with the abutment 16 and thereby brings the flap parallel with its seat.
Patent GB-1124592-A (GB)
Title: Edge trimming machine
Inventor: MELVILLE WILLIAM
IPC: B23C3/12
Filed: 1965-05-07
Abstract: 1,124,592. Milling. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 4 May, 1966 [7 May, 1965], No. 19405/65. Addition to 1,005,576. Heading B3K.  An edge trimming machine as claimed in Claim 1 of Specification 1,005,576 comprises means 30 for retracting the sensing means 19 when the direction of movement of the strip through the machine is reversed. Safety devices as described in Specification 1,088,234 are operative if the strip moves outside predetermined limits to reduce the pressure on piston-faces 10 and withdraw the cutters. The sensing arms 20 are connected respectively to the body and the spool of a valve 22. Movements of the valve cause adjustment of the cutter-slide 4 to maintain the cutters in the correct relationship to the strip. The strip is fed through the machine by electrically-driven reversible feeding rolls. Thus, if it is desired to withdraw a strip before the operation is complete, the operator operates a manual switch to reverse the rolls. At the same time, solenoid-operated means control the devices 30 to retract the feelers and a solenoidvalve 32 is operated to control the pistons 9 and retract the cutters. Detecting means are provided as in Specification 1,087,043 to prevent transverse movement of the cutters when the end of the strip is reached. In modifications, the sensing means are moved by spring means towards the strip and are retracted by fluid-pressure or rack-andpinion means.
Patent GB-789435-A (GB)
Title: Improvements relating to seed-drilling machines for sowing single seeds
IPC: A01C7/04
Filed: 1956-06-22
Abstract: 789,435. Seed sowing machines. RAFFINERIE TIRLEMONTOISE. June 22, 1956 [June 28, 1955], No. 19422/56. Class 6(1). A seed sowing machine comprises a disc 6 formed with a recessed periphery which partially enters a hopper 7 and carries seeds in the recesses to be deposited in the ground, an endless belt 10 retaining the seeds in the recesses during part of each rotation of the disc. A brush is provided to wipe excess seed from the disc as it passes out of the hopper. As shown, each disc is formed with two rows of recesses and ejector blades are provided for removing any seeds wedged in the recesses. The disc 6 and belt 10 are driven by gearing from a roller 2 which closes a furrow formed by a tool 21. The ground is smoothed by means of a rake 25.
Patent GB-1417887-A (GB)
Title: Apparatus for the distribution of stalk leaf or like material in storage spaces
IPC: A01F25/18
Filed: 1973-04-24
Abstract: 1417887 Filling silos E WEICHEL 24 April 1973 [25 May 1972] 19427/73 Headings B8E and B8S Material is fed into a silo 4 along a first pipe section 5 and a second telescopic pipe section 7 which is provided with a distributing device 10 and is suspended from a guide bar 11 connected at 13 to an arm 12 mounted for pivoting about the vertical axis of the silo. The arm 12 is pivoted about a column 3 in the silo by a motor 16 so as to alter the position of the distributing device 10, the guide arm sliding in a pivotable bearing 14.
Patent GB-205209-A (GB)
Title: Improvements in or relating to automatic exchange telephone apparatus
IPC: H01H63/06
Filed: 1922-07-14
Abstract: 205,209. Wood, A. F., Stott, W., and Telephone Manufacturing Co., Ltd. July 14, 1922. Selectors for automatic exchanges have their terminals formed by bring- ing a portion Y of an insulated wire X from the back to the front of a panel through two holes and removing the insulation from that portion. The left-hand terminals are for speech, the others for testing, so that any two speech wires are separated during conversation by a dead wire. This is stated to prevent inductive troubles. Specification 21347/94 is referred to.
Patent GB-438710-A (GB)
Title: Improvements in or relating to pressers for hair curls
IPC: A45D2/10
Filed: 1935-07-08
Abstract: 438,710. Hair-curling appliances. SOLOMON, N. L., 2802, Avenue K, Brooklyn, New York, U.S.A. July 8, 1935, No. 19489. Convention date, July 26, 1934. [Class 131] A device for pressing a spiral curl of hair comprises a pair of jaws 11, 12 hinged together at 17 and provided with operating members 19, the jaws being provided with externally-projecting hollow annular ribs 23 the inwardly-facing channels of which are in alignment and accommodate and press the thickest part of the curl, and with a plurality of spaced brace members 29, 30 centrally disposed of the ribs 23 and having convex surfaces adapted to compress the remainder of the curl. The jaws are provided with ventilating openings 26, 27, and are held closed by a spring surrounding the hinge 17. In a modification, the ribs 23 each consist of a single spiral convolution merging into a tangential portion extending to the edge of the jaw.
Patent GB-1461145-A (GB)
Title: Multichannel control circuit wich dc operated control devices
IPC: H03G5/02
Filed: 1974-05-03
Abstract: 1461145 Volume and tone control MOTOROLA Inc 3 May 1974 [19 June 1973] 19572/74 Headings H4R, H4J In an arrangement for control in a multichannel amplifier by a single variable d.c voltage the signal input is applied to a current steering device controlled by the variable d.c voltage to provide selectively a feed forward for boosting an input signal or feed back for attenuating the signal as described with respect to Fig. 3 an input signal is applied to one input of a differential amplifier 30 with one output from transistor 30b, being taken to an output circuit 80 and a second output, from transistor 30a, being taken via transistor 41 and contact pad 16 to provide a high pass filtered signal for application to contact pad 13 and a low pass filtered signal to contact pad 1. The high pass filtered signal is applied to transistor 52c to control the total current flow through the differential amplifier 52, in wihch the division of current between transistors 52a and 52b is controlled by the d.c potential applied to the base of transistor 52a from the treble control 22. The two outputs from the differential amplifier 52 are taken respcctively as negative feedback to the base of transistor 30b, and as an aiding signal to the output circuit 80 so that adjustment of the current division between transistors 52a and 52b provides either treble cut, when the current flows through 52a or treble boost when the current flows through 52b, and a variation from cut to boost as the division is varied. Differential amplifier 54 is connected in parallel with the differential amplifier 52 but has no signal applied thereto and is cross connected for d.c so that d.c conditions do not vary at the outputs. In a similar way the differential amplifier 62 is connected to feed low pass filtered signals either to the output circuit 80 or back to the amplifier 30, so as to provide bass boost or cut under the control of base control 24. Volume and balance control Fig. 4 is effected by feeding each channel signal through cascaded differential amplifiers 102, 112 or 122, 132, each provided with d.c. balancing amplifiers 104, 114, 124, 134, in which the current division in the first amplifiers in the chain, i.e. 102, 122, is varied so as to differentially affect the signal gain on adjustment of balance control 28, while the current division in the second amplifiers, i.e. 112, 134, is such as to simultaneously vary the signal gain on adjustment of the volume control 26.
Patent GB-372155-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03G3/26
Filed: 1931-07-07
Abstract: 372,155. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Dyck, A. F. van ; 14, Martin Road, Bryn Mauir Knolls, Yonkers, and Goldsmith, A. N.; 305, West End Avenue, New York, both in U.S.A.) July 7, 1931, No. 19594. Convention date, July 7, 1930. [Class 40 (v).] A tunable radio receiver comprises a device for giving automatic control of volume and means operated automatically in dependence on received intensity for rendering the signal reproducer inoperative when the intensity falls below a predetermined level, thereby eliminating background noises during tuning operations. The Figure shows a superheterodyne receiver having a gain control valve 15 in parallel with the second detector 8 and varying the grid bias of the radio and intermediate frequency amplifiers 1, 3 ; 4, 5 in accordance with received signal strength. The anode circuit of the amplifier 5 includes the windings 40 of a time relay so adjusted that when the anode current of 5 exceeds a certain value for a certain time contacts 47, 51 are closed thus short-circuiting the output circuit through resistance 49. The relay contacts are shunted by condenser 52 to minimize the effect of sparking. The object of the invention is to eliminate background noise during tuning. As when no carrier is being received the amplification is greatly increased, with consequent increase in anode current in all valves preceding the detector 8, the background noise is objectionable. The operation of relay 40 depends on this rise in anode current, and may open the reproducer circuit or control means for rendering any of the signal translating elements inefficient.
Patent GB-945166-A (GB)
Title: Improvements in or relating to the decomposition of cyclohexyl peroxide
IPC: C07C45/53
Filed: 1960-06-02
Abstract: The products of the partial oxidation of cyclohexane by molecular oxygen are freed from cyclohexyl peroxides by adding a catalytic amount of dispersible copper and manganese salts and stripping the unreacted cyclohexane therefrom.  The residue containing the salts may then be admixed with a monocarboxylic acid, contacted with molecular oxygen and the resulting adipic acid separated.  The salts may be acetates or naphthenates and are either soluble in, or capable of being suspended or dispersed in the partially oxidised mixture.
Patent GB-940252-A (GB)
Title: The process of manufacturing oxidation derivatives of decahydronaphthalene
IPC: C07C45/33
Filed: 1961-05-31
Abstract: Trans-9-decahydronaphthalene peroxide and cis-a - and cis-b -decahydronaphthalene ketones and alcohols are produced by reacting pure decahydronaphthalene (as defined) with O2 or an O2-containing gas at 80 to 170 DEG C.  "Pure decahydronaphthalene" is defined as decahydronaphthalene, consisting of at least 90% of cisdecahydronaphthalene, from which other substances contained in technically pure decahydronaphthalene have been removed.  When the process is carried out at 80 to 110 DEG C. for 24 to 72 hours, the conversion kept below 30%, and water produced by secondary reactions immediately removed from the reaction zone, a product rich in trans-9-decahydronaphthalene peroxide is formed.  When the process is carried out at 130 DEG  to 170 DEG C. for 4 to 24 hours, the main reaction products are cis-a - and cis-b - decahydronaphthalene ketones and alcohols.