baber/WOPTO huggingface dataset:
Patent GB-613210-A (GB)
Title: Improvements in or relating to the preparation of guanidine derivatives
IPC: C07C277/08
Filed: 1946-06-05
Abstract: Guanidotriphenylmethanes, useful as chemotherapeutic agents or intermediates therefor, and of the general formula <FORM:0613210/IV(b)/1> (wherein R represents an amino or guanido radical and Z hydrogen or an alkyl radical), are manufactured by heating a salt of a corresponding triaminotriphenylmethane with cyanamide, whereby one, two or three amino groups is or are replaced by a guanido group or groups according to whether the amount of cyanamide is one, two or at least three molecular proportions to one of triaminotriphenylmethane salt.  The reaction may be carried out at about 60-120 DEG  C., preferably by refluxing in a solvent, and the product may be isolated by evaporating the solvent, dissolving the residue in water and adding a metallic carbonate to precipitate the carbonate of the guanido compound, from which the free base may be obtained by neutralization with an alkali.  In examples: (1) fuchsin base is reduced with zinc dust and hydrochloric or hydrobromic acid, the resulting trihydrohalide is treated with potassium hydroxide, and the reduced fuchsin base so liberated is dissolved in N/2 alcoholic hydrochloric acid and refluxed with about 2 molecular proportions of cyanamide to produce 4-amino-311-methyl-41 : 411-diguanidotriphenylmethane (as carbonate); (2) the alcoholic hydrochloric acid in (1) is replaced by 4N aqueous hydrochloric acid; (3) and (4) 4 : 41 : 411-triamino-311-methyltriphenylmethane trihydrochloride is refluxed in absolute alcohol with excess of cyanamide to form 4 : 41 : 411-triguanido-311-methyl trimethane (as carbonate). Reference is also made to the preparation of 4 : 41-diamino-31-and -311-dimethyl-411-guanido-, 3-methyl-4-amino - 41 : 411 - diguanido-, and 4 : 41 : 411-triguanido - 31 : 311 - dimethyl- and -3 : 31 : 311 - tri - methyl-triphenylmethane, and to the use of triphenylmethane itself and other alkylated triaminotriphenylmethanes as starting materials.  The Specification as open to inspection under Sect. 91 includes also a reference to the manufacture of the corresponding guanidotriphenylcarbinols.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1090760-A (GB)
Title: Improvements in or relating to frequency modulated oscillator circuits
Inventor: FOTHERGILL ROWLAND ANTHONY CRA
IPC: H03C3/24
Filed: 1964-04-24
Abstract: 1,090,760. Frequency modulation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 24, 1965 [April 24, 1964], No. 17071/64. Heading H3R. A frequency modulated phase-shift oscillator comprises two series connected, emitter driven, earthed base transistors VT 1 , VT 2 , each producing a phase-shift of about -45 degrees, the second supplying over a shunt capacitor C 2 , producing a further - 90 degrees phase-shift, a phase inverting transistor amplifier VT 4  with output connected back to the first transistor VT 1 . An emitter follower buffer stage VT 3  may connect VT 2  and VT 4 . Modulation may be applied to the emitter of VT 1  through a transistor amplifier VT 5  whose emitter/base input circuit is shunted by an inductor Z and resistor R 1  in series, to counteract non-linearity in the frequency swing and make it exactly proportional to the change in emitter current of the series transistors VT 1 , VT 2 . Further, the modulation may be applied through a phase splitting transistor VT 6 , with collector circuit feeding VT 5 , and emitter circuit connected through an R.F. choke, parallel resonant at the mean oscillator frequency, to the base of the emitter follower VT 5  so that amplitude modulation is avoided.
Patent GB-1176017-A (GB)
Title: Improvements in or relating to Hydraulic Reciprocating Pumps and Motors and Hydrostatic Transmissions.
IPC: B62D11/18
Filed: 1967-04-14
Abstract: 1,176,017. Hydrostatic transmissions. CATERPILLAR TRACTOR CO. 14 April, 1967 [13 July, 1966], No. 17194/67. Heading F2C. [Also in Division F1] An hydrostatic transmission has a pump unit and a motor unit rigidly connected by manifolds 11 and 12 providing for the passage of liquid between the units. The units are supported by the manifolds in a casing 71 which forms a leakage reservoir. A valve 78 and a tube 79 provide for replenishment of leakage and addition of cooled liquid to the circuit. Each pump or motor unit comprises a unitary trunnion 14 extending transversely through a three-part hollow casing 16, 17, 18, a drive plate 32 rotatably mounted in the trunnion 14 and a cylinder block 40 connected by a universal joint 47 to the drive plate. The casing 16, 17, 18 is journalled for tilting movement on and relative to the trunnion 14 for varying the displacement of the unit and ports 65 in the ends of the trunnion provide for the passage of liquid to and from the cylinders 41 to the manifolds 11 and 12. A pair of transmissions may be mounted in a common casing (80), Fig. 5 (not shown), the pumps being driven from a common drive shaft (81) through gears (82, 83). The displacement of and the direction of flow in the pumps is variable by hydraulic actuators (84) and the motor displacement is variable by hydraulic actuators (85). The input shaft of each pump and the output shaft of the associated motor are at 90 degrees one to the other.
Patent GB-457500-A (GB)
Title: Improvements in or relating to doors or tailboards for lorries, vans, waggons, railroad and other vehicles
IPC: B61D19/00
Filed: 1935-06-14
Abstract: 457,500. Vehicle-fittings. WHITE, G., Fyfleld Hall, Ongar, Essex. June 14, 1935, No. 17205. [Class 78 (iv)] [See also Group XXXII] A hinged tailboard, door or ramp for vehicles, fanlights and trapdoors is held in closed, lowered or intermediate position by means of one or more than one floating spring compressibly associated with a lever during lowering and extensively associated with the same lever during raising, the said lever constantly and slidably abutting against the door &c. The tailboard 2 hinged at the bottom to the vehicle floor is provided with a pair of channel guides 3, 4 against which bear levers 9, 10 pivoted at 13, 14 to brackets 7, 15, 16 and 8, 17, 18 and acted upon by counterbalancing helical springs through rods 24 and links. In a brewer's dray, the tailboard may be replaced by two hinged ramps which are removably hinged to the rear of the dray and operated upon by the levers and springs. The springs and levers may also be applied to the surface openings leading to cellars for facilitating the supply to a removal therefrom of kegs and barrels, the hinged drop-down doors or ramps being removably attachable to the pavement opening or cellar roof. The springs are such that the tailboard or ramp can be maintained in any intermediate position.
Patent GB-1173485-A (GB)
Title: New Amides of 3,4,5-Trimethoxyphenoxyacetic Acid
IPC: C07C69/67
Filed: 1967-04-14
Abstract: 1,173,485. Amides. SPOFA, UNITED PHARMACEUTICAL WORKS. 14 April, 1967 [18 April, 1966], No. 17221/67. Heading C2C. Novel amides of the formula wherein R<SP>1</SP> represents hydrogen or C 1-4  alkyl, R<SP>2</SP> represents hydrogen, amino, C 1-4  alkyl, aminoalkyl, dialkylamino or aralkyl or NR<SP>1</SP>R<SP>2</SP> represents the residue of a secondary saturated heterocyclic amine with 2-5 carbon atoms which may contain a second hetero atom are prepared by reacting the corresponding C 1-4  alkyl ester with R<SP>1</SP>R<SP>2</SP>NH, wherein R<SP>1</SP> and R<SP>2</SP> have the above significance (an example also describes the preparation of a novel compound wherein R<SP>1</SP> represents hydrogen and R<SP>2</SP> represents amino by reaction of the free acid with hydrazine. Methyl 3,4,5 - trimethoxyphenoxy acetate is prepared by esterifying the free acid with dimethyl sulphate. in which Acyl is an acyl radical of a monobasic hydrocarbon carboxylic acid of from 1 to 18 carbon atoms, X is hydroxy, keto, acyloxy or tetrahydropyranyloxy and Y is hydroxy, acyloxy or tetrahydropyranyloxy, are prepared by subjecting a compound of Formula III to the oxygenating activity of Sporotrichum sulfurescens, Rhizopus arrhizus or Curvularia lunata in an aqueous nutrient medium under aerobic fermentation conditions to give hydroxy compounds of Formulµ IV and V and, if desired, acylating these hydroxy compounds to give the corresponding acyloxy derivatives, or treating the hydroxy compounds with dihydropyran to form the corresponding tetrahydropyranyl ethers, or oxidizing the hydroxy compounds of Formula IV to form the corresponding ketones. 1-Acetamidoadamantan-4-one oxime is prepared by reacting 1-acetamido-adamantan-4- one with hydroxylamine. Starting materials of Formula III are prepared by acylating 1-amino-adamantane with appropriate acylating agents. Pharmaceutical compositions having central nervous stimulant activity, for oral or parenteral administration, comprise a compound of Formula I or II together with a carrier.
Patent GB-792106-A (GB)
Title: Seat supporting and adjusting mechanism
IPC: A61G15/02
Filed: 1956-06-04
Abstract: 792,106. Adjustable seats. AMERICAN METAL PRODUCTS CO. June 4. 1956 [July 11, 1955], No. 17230/56. Class 52(2) A seat is mounted on two supports and is adjustable forwards and backwards and its front and back edges are adjustable upwards and downwards, the motions being simultaneous or independent, and the power being provided by a motor mounted on one of the supports which operates a screw carrying three selectively-engageable nuts, each operating independent adjusting mechanism. The motor 51 operates the screw 46 through a worm coupling housed in 52 and the nuts 47. 48 and 49, grip the screw by means of solenoidal clutches. controlled by the operator. The nut 48 turns a torsion tube 58 as it moves on the screw 46 which in turn lifts or lowers the front of the seat supporting track through a system of arms and pivots 92, 93. 94, 23, the system being arranged so that the movements of the two supports are identical. The nut 47 turns another torsion tube 59, co-axial with the tube 58 and outside it, by means of a yoke 75. The tube 59 moves the seat forwards and backwards by means of a system of arms and pivots 83, 84, 43, 85, 86, the links 43 being secured to the arms 42 of the base-members 13. The nut 49 turns a third torsion tube 61, co-axial with the tubes 58 and 59 and outside them, by means of a yoke 63. The tube 61 moves the rear of the seat upwards and downwards by means of a system of arms and pivots 73, 74, 37, 38, 29 The yokes from the nuts 47 and 49 and the arms from the nut 48 operate the systems of arms and pivots -directly on the support to which the motor is attached by means of arms 77, 65 and 89 respectively. The motor is held by a bracket 57. A spring 39 between the arms in the mechanism at the front and back of the seat supports steadies the upward and downward motions. The seat moves backwards and forwards along a rail- 9 by means of balls 10. Pins 54 limit the travel of the nuts along the screw 46 when a shoulder on the nut disengages the clutch. If the two supporting devices are closer together in the case of a narrower seat, the torsion tubes are eliminated.
Patent GB-1353344-A (GB)
Title: Method of sulphide ore and ocean floor nodule processing
IPC: C22B3/30
Filed: 1971-05-26
Abstract: 1353344 Ocean floor nodule processing DEEPSEA VENTURES Inc 26 May 1971 [26 May 1970 (2)] 17243/71 Heading C1A Ocean floor nodules are processed by reacting them with sulphur dioxide or a sulphide ore to form the sulphates of the manganese, nickel, copper and cobalt present in the nodule, the sulphates of at least Ni, Cu, and Co being formed together, extracting at least the Ni, Cu, and Co sulphates into aqueous solution and isolating one or more of the metals from the aqueous solution . To form a leach liquor, the nodule may be reacted with SO 2  and then contacted with H 2 O or ground nodules dispersed in water may be reacted with sulphur dioxide. Oxygen containing gas may be added to the leach liquor to precipitate iron oxide. In another embodiment, dried nodules are reacted in the absence of air with SO 2  to form manganese sulphate, the nodules leached, the solids which are then separated off being contacted with an aqueous solution of SO 2  while passing air through releach liquor to convert iron to iron oxide. In yet a further embodiment a mixture of nodules and sulphide ore is roasted in oxygen and then leached with water. The isolation of metals from the leach liquors by liquid ion exchange involving use of 8-hydroxy quinolines and α-hydroxy oximes and electrolysis is described.
Patent GB-200808-A (GB)
Title: Improvements in anode casings for mercury vapour rectifiers
IPC: H01J13/20
Filed: 1923-07-03
Abstract: 200,808. Akt.-Ges. Brown, Boveri, et Cie. July 12, 1922, [Convention date]. Low-pressure metallic-vapour apparatus. - An anode casing h comprises a number of funnelshaped constructions t<1>, t<2>, t<3> arranged behind one another in the undivided path of the arc so as to prevent reversal. In a modification the casing consists of a number of concentric cvlinders of different lengths with constructions of different diameters, the cylinders being insulated from one another so that the space charge may be affected by the potentials of the cylinders.
Patent GB-446376-A (GB)
Title: Improvements in or relating to electric battery lamps
IPC: F21L4/00
Filed: 1935-06-15
Abstract: 446,376. Electric battery lamps. WISEMAN, S., 75, Paul Street, Finsbury, London. June 15, 1935, No. 17309. [Class 39 (ii)] An electric-battery lamp is provided with a casing made in two parts a, b of moulded insulating material which enclose the battery cells d, d<1> and are secured together by the lamp bulb c, the cap of which is inserted through a hole in the upper casing part a and screwed into a socket b<1> in the lower part b. A metal strip e connects the centre contact of the bulb to the metal casing of the cell d, while the bulb socket b<1> is connected to the centre contact of the cell d. A switch in the form of a metal strip slidably mounted within a guide in the part b is operated by an external projection which establishes series connection between the cells. The upper part a of the casing is dished at a<1> to receive the lamp bulb and form a reflector, a silvered member a<3> preferably being provided to increase the effect.
Patent GB-589959-A (GB)
Title: Improvements in gas-tight joints between metals and ceramics
IPC: C04B37/02
Filed: 1943-10-20
Abstract: 589,959. Soldering. M-O VALVE CO., Ltd., and LE ROSSIGNOL, R. Oct. 20, 1943, No. 17312. [Classes 83 (ii) and 83 (iv)] Making anodes for thermionic valves.-A gastight joint between a ceramic body and a body with a metallic surface is made by plating the surface of the ceramic body with metal interposing a metal washer between the plated and metallic surfaces and applying heat and pressing to effect diffusion of the washer without melting. A thermionic valve with anode 4, grid 5 and cathode 1 is sealed by interposing ceramic cylinders 7, 9 with copper-plated surfaces and gold washers 10 between the parts and uniting by heat and pressure during evacuation through a tube 11. Specification 450,274 is referred to.
Patent GB-1426271-A (GB)
Title: Decoding systems for colour television receivers
IPC: H04N9/465
Filed: 1973-04-11
Abstract: 1426271 Colour television SONY CORP 11 April 1973 [13 April 1972] 17313/73 Heading H4F  A PAL colour television receiver uses at least one one-line delay line and at least one switch operated at the end of each line period to produce a first chrominance signal formed of each second received line repeated twice and a second chrominance signal which is equivalent to the signal which would be produced by delaying the first chrominance signal by one line period. The first and second chrominance signals are added together to produce a modified chrominance signal which is fed to demodulators, and the first and second chrominance signals are subtracted from each other to derive a signal for controlling the phase of operation of the switch. In one embodiment, Fig. 9, the received chrominance signal is supplied to switch 3, operated by flip-flop 8, switch 3 co-operating with one-line delay line 4 to produce the first chrominance signal at the output of switch 3 and the second chrominance signal at the output of amplifier 5, which signals are fed to adder 9 and subtractor 17. The output of adder 9 is passed to demodulators 11, 12 and via a burst gate 13 to an oscillator 14 which provides reference signals to the demodulators 11, 12 via 45 degree phase shifter 15 and 90 degree phase shifter 16. The output of subtractor 17 is fed to a gain-controlled amplifier 18 which also acts as a burst gate, the output of amplifier 18 containing, due to the action of subtracter 17, only the first subcarrier burst passed by switch 3 in each field. A gate 19 is controlled by circuit 20 to be conductive for one line period starting seven line periods after the rising edge of each vertical synchronizing pulse. If switch 3 is passing only bursts of +135 degrees phase relative to the (B-Y) axis the burst passed by amplifier 18 does not coincide with the line period during which gate 19 is conductive and the phase of operation of flip-flop 8 is unaltered. If, however, switch 3 is passing only bursts of -135 degrees phase, the burst passed by amplifier 18 in tha first and fourth field of each four-field cyclecoincides with the line period during which gate 19 is conductive, and detector 21 produces an output to reverse the phase of operation of flip-flop 8, and hence switch 3. In a second embodiment (Fig. 8, not shown) the output of amplifier 5 is not fed to switch 3, the delayed input to switch 3 being provided by a second one-line delay line and amplifier connected between amplifier 1 and switch 3. In a further embodiment (Fig. 3, not shown) a second switch operated at the end of each line period is provided, receiving inputs from amplifier 5 and amplifier 1, the first chrominance signal being produced at the output of this second switch, and the second chrominance signal being produced at the output of amplifier 5.
Patent GB-773014-A (GB)
Title: Purification of dinitriles
Filed: 1955-06-16
Abstract: A saturated aliphatic dinitrile, contaminated with by-products formed during its synthesis, is purified by heating with a hydrazine of the formula RNH.NH2 in which R is hydrogen or a hydrocarbon radical, or a hydrate or hydrochloride thereof, and thereafter separating the resultant purified dinitrile from the reaction mixture.  Suitable hydrazines include hydrazine, mono- and di-methyl, ethyl and high alkyl hydrazines, and aryl-substituted hydrazines such as phenyl hydrazine.  The hydrazine reacts to form hydrazones with impurities such as 2 - cyano - cyclopentylideneimine.  Up to 5 to 10 per cent by weight in excess of the stoichiometric amount of hydrazine, relative to such impurities, is added and the mixture heated to between 100 DEG  to 250 DEG  C., preferably between 160 DEG  and 190 DEG  C., for 5 to 30 minutes.  The hydrazine reaction products may then be removed by fractional distillation or extraction with a solvent for the hydrazine reaction products which is a non-solvent for the dinitrile. The process may be used to purify adiponitrile obtained by hydrogenation of adipic acid in the presence of ammonia according to Specification 494,236, [Group IV], or from dicyanobutene according to Specification 667,207.  In examples, adiponitrile produced by hydrogenation of dicyanobutene, and containing 2-cyanocyclopentylideneimine, is heated with an aqueous solution of hydrazine hydrate and the mixture fed to a refining train consisting of a topping column and a refining column giving a product of highly refined adiponitrile.
Patent GB-633743-A (GB)
Title: A new or improved control for variable speed gears on cycles
IPC: B62M25/04
Filed: 1947-07-02
Abstract: 633,743. Handle-bar control mechanism. HERCULES CYCLE & MOTOR CO., Ltd., and YAPP, T. A. July 2, 1947, No. 17401. [Class 136 (i)] A control for a variable speed gear mounted on the handle-bar of a cycle and connected to the gear selecting mechanism by a flexible cable comprises a split housing a, b, a ring d mounted for angular movement in an annular recess c in the housing and having a peripheral groove g to receive the flexible cable f, and a spring-loaded ball detent I mounted in the housing and co-operating with one or more recesses j, k in one end face of the ring d in different angular positions corresponding to the engagement of the different gears. To limit the maximum angular movement of the ring, a peg t is fixed in the housing and co-operates with an arcuate notch s in the periphery of the ring. A lug in the part a of the housing provides an abutment for the casing e of the cable f which passes through the abutment and in a tangential direction on the periphery of the ring around which it is partially wound, the end of the cable being detachably anchored in the ring d by a nipple l The ring is secured to a sleeve q which is angularly movable in the handle-bar and may carry or form a hand-grip r. In a modification, the ring is movable angularly by a finger-piece projecting from the ring through an arcuate slot in one end of the housing.
Patent GB-758146-A (GB)
Title: Dimeric acid polyepoxide reaction products
IPC: C08G59/42
Filed: 1954-06-14
Abstract: Epoxide-terminated resins are formed by reacting at 110-160 DEG  C. a dimerized unsaturated higher fatty acid with an excess of a polyepoxide.  By controlling the temperature the COOH groups add directly to part of the epoxide groups and esterification of hydroxyl groups in the polyepoxide is minimized.  A suitable acid is dimerized linoleic.  The acids may be prepared as described in U.S.A. Specification 2,482,761.  Suitable polyepoxides are aliphatic, e.g. butadiene dioxide, 4-vinylcyclohexenedioxide, diglycidyl ether, polyether polyepoxides derived from polyhydric alcohols, as described in Specification 679,536 and U.S.A. Specification 2,581,464, or aromatic, e.g. products of alkaline reaction between epichlorhydrin and dihydric phenols, e.g. bisphenol.  Some monoepoxides may also be present.  Solvent, e.g. "Cellosolve" acetate (Registered Trade Mark), xylene, cyclohexanone or Hi-Flash naphtha may be added to the reaction mixture.  The products with amine catalysts or compounded with urea-formaldehyde or butylated urea-formaldehyde resins are film-forming and useful for clear or pigmented coating compositions or as plasticizers for nitrocellulose.  A number of examples are given of the reaction of epoxide resins with commercially available dimerized linoleic acids, the products being in several cases mixed with ureaformaldehyde resins and the morpholine salt of p-toluenesulphonic acid as catalyst and baked to form films, or coatings on articles.  In Example 4 an oil-modified glycerol-phthalate alkyd resin was also added to the composition.  In example 11, adipic acid was also present with the dimerized fatty acid.  In other examples the epoxide resin was prepared from epichlorhydrin and a dihydric phenol compound prepared from bisphenol and dichloroethyl ether.  In Example 14 the epoxide resin was prepared from a mixture of p,p1- and o,p1-dihydroxydiphenyl sulphones.