baber/WOPTO huggingface dataset:
Patent GB-243412-A (GB)
Title: Improvements in or relating to submarine mines for use against vessels equipped with paravanes or the like
IPC: F42B22/42
Filed: 1924-07-29
Abstract: 243,412. Elia, G. E., and Lucas, D. July 29, 1924. Mines, marine.-The mooring rope of a submarine mine is provided with a combined gripping and cutting device adapted, when encountered by a paravane rope, to cut this rope to free the paravane and simultaneously to grip the part of the rope remaining connected to the ship toeing the paravane, whereby the mine is swung against the side of said ship. As shown in Figs. 1 and 2, the device comprises a shank 11 wich arms 13. 14 which are pivoted at 130, 140 and are adapted to close against fixed arms 15, 16, under the pull of the mooring rope 10 transmitted to the arms through a rope 18 disposed over a number of suitable pulleys. This occurs when a paravane rope is caught in one of the prongs 12 at the sides of the device and the pull of this rope shears a pin 19, thereby unfastening the pivoted arms. The cutting operation is performed by blades 131, 141 at the end of the arms, and the gripping operation by the side edges of the arms as the moving arms close in against the others. The cutting device is similar to the one described in Specification 243,411.
Patent GB-418573-A (GB)
Title: Improvements in or relating to sparking plugs for internal combustion engines
IPC: H01T13/54
Filed: 1934-02-22
Abstract: 418,573. Sparking-plugs. BUNT, E. T., 44, Cathay, Redcliffe, and HILL, F. E. J., 16, Cotham Park, Cotham, both in Bristol. Feb. 22, 1934, No. 18177. Divided out of 418,545. [Class 7 (iv).] The spark gap is formed between the bevelled end of the central conductor A and a rod B loosely mounted in circular or inclined holes b<3> in the casing.
Patent GB-384926-A (GB)
Title: A process for the preparation of beryllium compounds
IPC: C22B35/00
Filed: 1932-06-27
Abstract: Substances such as beryl, containing in addition to beryllium, aluminium, iron, and silica are calcined at 800-1200 DEG  C. with such quantities of alkaline-earth metal oxides, carbonates, &c. that the beryllium present becomes insoluble in acids, and the aluminium, iron, and calcium then leached out with acid, for instance with hydrochloric, nitric, formic, or acetic acid.  From the residue, comprising beryllium oxide and silica, the former may be removed by conversion to sulphate, or to an organic acid salt which is then distilled off; or the residue may be mixed with carbon and chlorinated, the beryllium and silicon chlorides being p  separately collected; or the residue may be mixed and heated with pyrites and carbon.  9-13 mols. of calcium oxide should be used per mol. of beryl for the first step of the process.  Instead of using calcium oxide, a mixture of 6-24 equivalents thereof with 6-20 equivalents of an alkali carbonate, oxide, or hydroxide may be employed, in which case 15-36, say 23-30 equivalents of the mixture is used per mol. of beryl.  For the leaching step dilute acids are used to prevent separation of silica, a 7-10 per cent solution of hydrochloric acid being specified.
Patent GB-862105-A (GB)
Title: Improvements in or relating to signal translating circuits for magnetic data recording
Inventor: CAPPER BRIAN HARFORD
Filed: 1959-06-07
Abstract: 862,105. Transistor pulse circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. May 27, 1959 [June 7, 1958], No. 18265/58. Class 40(6) [Also in Group XIX] Binary data is recorded on a moving magnetic medium in phase-modulation form (i.e. in which the direction of change of magnetisation in the middle of a storage element is indicative of the bit stored) by the use of a trigger circuit receiving two series of intercalated strobe pulses, pulses of the first series each reversing the state of the trigger (to effect the significant magnetisation reversal) and the pulses of the second series being enabled to reverse the trigger state only if the input bit is the same as that previously received. As shown the trigger comprises cross-coupled transistors TX5, TX6 and the first set of strobe pulses SP2 (pulses rising from a background of -6 volts to earth potential) are applied to both D4 and D6. When TX6 is conducting diodes D2 and D3 maintain the right-hand side of Cl at around earth potential, so that D4 blocks the SP2 pulse; when TX6 is cut off however diodes D1-D3 lower the potential to about -6 volts so that the pulse acts through D4, Cl and D5 to cut off TX5 and switch the circuit, the SP2 pulses applied to D6 ensure that each SP2 pulse switches the circuit, since it is symmetrical. The second set of strobe pulses SP1 defining the limits of the storage elements are applied to two diodes placed symmetrically to D4 and D6, except that the gating of the pulses is controlled by the input pulses through transistors TX1, TX2 instead of by the state of the trigger. A fall in potential from earth to -6 volts at S1, indicating that a "1" is to be recorded, is transmitted through D8 and D9 to the right-hand side of C2 so that the next SP1 pulse can act through D10 to cut off TX6 (if not already in this state) so that at the next SP2 pulse when TX5 is switched off and TX6 on so that the potential at TX5 collector falls to -6 volts and that at TX6 collector rises to earth; these changes are transmitted via TX12 and TX11 to TX10 and TX9 which conduct and switch off respectively to energise the right-hand side of transformer TR instead of the left, and hence produce the desired change in polarity of recording at write head WH. Similar action occurs at a "0" pulse applied at SO. A trigger of two transistors TX7, TX8 disables, through TX14 and TX13, the recording head if no signal is received at either S0 or Sl, this latter condition cutting off TX3 and TX4 to lower the potential at D15  and allow an SP1 pulse to cut off TX7, while the re-appearance of an input signal will act through "OR" gate D19, D20 to switch the trigger back to its "record" state. A number of write heads may be connected in parallel controlled by the same transistors TX9, TX10, each write head having a pair of switching transistors TX15, TX16 controlled by a signal at SL through TX17.
Patent GB-1032000-A (GB)
Title: Improved vehicle battery housing structure
IPC: H01M50/249
Filed: 1965-04-30
Abstract: 1,032,000. Battery mountings. ALLISCHALMERS MANUFACTURING CO. April 30, 1965 [May 5, 1964], No. 18308/65. Heading B7H.  The battery 38 of an electric lift truck is contained within a housing comprising detachable side panels 26, 27 retained in position by a top panel 46 engaged therewith under the weight of a driving seat 17. A bottom wall 22 attached to or forming part of the truck frame supports the battery 38 and includes openings 32 which loosely receive fingers 28, 29 on the side panels 26, 27 so as to permit the side panels to swing outwardly. Inclined surfaces 54, 56 on the side panels 26, 27 are engaged by complementary surfaces 52, 53 on the top panel 46 under the weight exerted by the seat 17 on resilient pads 58. The seat 17 can be pivoted forwardly about a transverse hinge at the top of the front panel 23 (Fig. 2, not shown), rigidly attached to the truck frame. The top panel 46 can be raised by a handle 62 about a transverse hinge at the top of a rear panel (Fig. 4, not shown), and includes two sections hinged together.
Patent GB-1034932-A (GB)
Title: Improved process for halogenation of synthetic resins
IPC: C08F8/20
Filed: 1963-05-09
Abstract: Polymers of at least 75 weight per cent of vinyl chloride are halogenated by reacting a macrogranular vinyl chloride polymer having a specific viscosity of at least 0.4 suspended in an aqueous liquid in the presence of a chlorohydrocarbon swelling agent, illumination and a catalytic amount of a free radical producing agent at a temperature no greater than 65 DEG  C. Specified resins are polyvinyl chloride and copolymers of vinyl chloride with vinylide chloride, vinyl acetate, isopropenyl acetate, methyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, ethyl methacrylate, acrylonitrile, ethylene, propylene, styrene, a -methyl styrene, and maleic and fumaric esters.  The resins are preferably porous with a pore space of 5 to 50% by volume. Specified swelling agents are mono-, di- and trichloro-methane.  Many suitable free radical producing agents are specified including metal peroxides and superoxides, inorganic peroxy acids and salts, hydrogen peroxide and peroxyhydrades, organic hydroperoxides and peroxides, peracids and peresters, aldehyde and ketone peroxides, addition compounds of hydrogen peroxide with organic compounds, and aliphatic azo compounds. Examples describe the chlorination of polyvinyl chloride in aqueous suspension in the presence of chloro-form and (1) benzoyl peroxide, (2) potassium persulphate, (3) sodium perborate, (4) hydrogen peroxide, (5) azo bisisobutyronitrile and (6) sodium perborate, potassium persulphate, benzoyl peroxide, hydrogen peroxide and acetyl peroxide.
Patent GB-353635-A (GB)
Title: A process for preparing and purifying preparations of an active substance which retards the development of sex
IPC: A61K38/22
Filed: 1930-06-16
Abstract: An active substance which retards the development of sex is extracted from animal or human fluids, such as blood, lymph, serum, urine, by processes of concentration and purification controlled by tests on experimental animals.  The substance differs from known hormones such as that obtained from the anterior tube of the hypophysis which have an indirect retarding action on parts of the sex functions due to the formation of lipoid substances in the ovary.  Accordingly, the hypophysis and the corpus luteum, in which their specific hormones predominate, are not suitable sources of the new hormone, and the tests used in controlling the extraction, such as the effect on the rut of female rodents, or on the development of puberty in both sexes must show a real direct retardation of the sexual functions not accompanied by phenomena such as the formation of the corpora lutea in the ovary or hypertrophy of the mucous membrane of the uterus.  In making the extract, concentration of the active substance may be effected by removal of protein, by ultra-filtration or dialysis, by extraction with organic solvents, and by precipitation.  In one example, calves' blood was centrifuged and a mouse test showed greater concentration of the hormone in the liquid portion; this portion was passed through an ultra-filter and tests showed greater concentration in the filtrate, which was worked up by concentration and filtration.  In a second example, young pigs' serum was evaporated to dryness, powdered, extracted with alcohol, and the residue worked up by dialysis of an aqueous extract.  The active substance is present in the dialysate, and was precipitated with methyl alcohol, and the filter residue extracted with water.  In a third example, urine of healthy children was concentrated and filtered and the active substance obtained from the filtrate by precipitating with ethyl alcohol, and submitting an aqueous extract of the filter residue to dialysis.
Patent GB-1119029-A (GB)
Title: Stabilized manganese ethylene bisdithiocarbamate
Inventor: LOUIS MELIS NICOLAAS
IPC: C07C333/16
Filed: 1967-04-21
Abstract: Manganese ethylene bisdithiocarbamate is stabilized by adding dinitrosopentamethylenetetramine and/or 1,3,5-tris(cyanomethyl)hexahydrotriazine.
Patent GB-989405-A (GB)
Title: High temperature columbium base alloys
IPC: C22C27/02
Filed: 1963-05-10
Abstract: A niobium base alloy having good stressrupture strength at high temperatures has a composition within the range .Be.0.05- 0.3% .one or more of Ta, W, Mo.1.0 -40.0% .one or more of Hf, Zr, V.0 -10.0% .Cr.0 - 4.0% In an example an alloy in 1/8 inch thick strip form made by rolling at 1800  DEG F. was process-annealed for 1/2 hour at 3000 DEG F., rolled to 0.03 inch at the lowest permissible temperature, machined and stress relieved at 2200  DEG F. for 1/2 hour.  Reference is made to use of the alloys in gas turbines, e.g. as vanes or blades.
Patent GB-570700-A (GB)
Title: Improvements in or relating to the circulation of water in water-tube steam boilers
IPC: F22B37/34
Filed: 1943-11-10
Abstract: 570,700. Promoting water circulation in steam boilers. THORNYCROFT & CO., Ltd., J. I., WATSON, H. J., and SHARPE, H. E. Nov. 10, 1943, No. 18678. [Class 123 (ii)] In a water-tube steam boiler with an upper steam and water drum 3 connected by groups of steam generating tubes 4 and one or more downcomer pipes 5 to a lower water drum or drums 1, feedwater is supplied to the boiler through a pipe 6 which is arranged within the upper drum and terminates in one or more nozzles 8 which direct the incoming feedwater downwards through a venturi tube forming part of the downcomer pipe or pipes, to cause the pressure of water in the lower drum or drums, as compared with the pressure in the upper drum, to rise above that due to the static head. in the form shown, one downcomer pipe 5, arranged outside the path of the furnace gases, connects the upper drum 3 to the centre of each lower drum 1. From the bottom of each downcomer pipe two horizontal perforated ducts 10 extend in opposite directions within each lower drum. Baffles 9 prevent the passage of steam bubbles into the downcomer pipes.
Patent GB-1112855-A (GB)
Title: Linear dimension measuring devices
Inventor: CALLIS KENNETH FRANK
IPC: G01B7/06
Filed: 1966-04-29
Abstract: 1, 112, 855. Magnetic thickness gauge. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 27, 1967 [April 29, 1966], No. 18964/66. Heading G1N. A gauge for measuring the thickness of a non- magnetic coating on magnetic material comprises a resiliently mounted magnet with means for measuring the attraction (between the magnet and the magnetic material). In Fig. 1 (not shown) the magnet is mounted in a liquid filled bellows and the attraction indicated by a liquid column. In Fig 2 (not shown) the magnet is mounted on a blade spring and its upper part rubs against a small roller carrying a pointer. The spring may be given a variable rate by suitable mounting e. g. as in Fig. 3 (not shown) to make the scale more linear.
Patent GB-404277-A (GB)
Title: Improvements in or relating to the ventilation of dynamo-electric machines
IPC: H02K9/08
Filed: 1932-07-05
Abstract: 404,277. Cooling dynamo-electric machines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ORSETTICH, R., c/o General Electric Co., Witton, Birmingham. July 5, 1932, No. 19012. [Class 35.] Air is drawn over the armature, field-magnets, &c. of a dynamo by a fan which then passes it through tubes arranged between and spaced from the poles to an enclosing diaphragm of conducting material where it is cooled by the .outer air through the diaphragm. In the arrangement shown the fan 18 draws air between the poles 1 and through axial passages 14, 12 in the commutator and armature and radial passages 13 in the armature and delivers it to a space behind a partition 20 from which tubes 22 pass to the commutator end of the machine which is enclosed by a thin diaphragm 24.
Patent GB-773801-A (GB)
Title: Improvements in or relating to electrostatic spray coating
IPC: B05B5/04
Filed: 1954-06-29
Abstract: <PICT:0773801/III/1> <PICT:0773801/III/2> A method of electrostatically spray coating a plurality of articles 30 comprises projecting outwardly from an atomizer 32 and electrostatically charging to a potential different to that of the articles 30 liquid coating particles in a spray of annular form, moving the articles 30 along a path 31a, 31b spaced from the atomizer 32, and maintaining in the spraying zone an electrostatic particle-repelling potential, e.g. by electrodes 33, 34 electrically connected to the atomizer 32, which directs particles towards the articles 30.  The atomizer 32 and electrodes 33, 34 may be at high potential or at earth potential, the articles 30 being oppositely connected.  The articles 30 may travel through 180 degrees about the atomizer 32, one electrode only being employed then.  The atomizer comprises a disc 18 rotated by a motor 17 on a housing 15 to which two electrodes 20, 21 (corresponding to electrodes 33, 34) are connected.  A voltage source 22 is connected to the housing 15 which is reciprocated vertically by a pneumatic device 23.  Specification 741,313 is referred to.
Patent GB-1072918-A (GB)
Title: Preparation of bis-benzoxazolyl stilbenes
IPC: C07D263/64
Filed: 1964-05-08
Abstract: Bis-benzoxazolyl stilbenes of formula <FORM:1072918/C2/1> wherein each group R1 and R11 represents a hydrogen or halogen atom or an alkyl group having at least two carbon atoms, aryl, alkoxy, acyloxy, alkylsulphonyl, arylsulphonyl, cyano, acyloxy, amino, carbamyl or carbamoyloxy group are prepared by heating a mixture of sulphur, and a compound of formula <FORM:1072918/C2/2> together with a compound of formula <FORM:1072918/C2/3> The reaction is by condensation and elimination of hydrogen sulphide at a preferred temperature between 250 DEG  and 300 DEG  C. and at atmospheric pressure.  Examples describe the preparation of 4,41-bis-(benzoxazol-2-yl)-stilbene, 4,41 - bis - (5 - chlorobenzoxazol) - stilbene, 4,41 - bis - (5 - chloro - 6 - methylbenzoxazol - 2 - yl) - stilbene, 4,41 - bis - (6 - methylsulphonylbenzoxazol - 2 - yl) - stilbene, 4,41-bis - (5 - methoxybenzoxazol - 2 - yl) - stilbene, 4,41 - bis - (5 - methylbenzoxazol - 2 - yl)-stilbene, 4,41 - bis - (5 - tert. - amylbenzoxazol-2 - yl) - stilbene, 4,41 - bis - (5 - phenylbenzoxazol - 2 - yl) - stilbene, 4,41 - bis - (5 - cyanobenzoxazol - 2 - yl) - stilbene, 4,41 - bis - (5,7-dichlorobenzoxazol - 2 - yl) - stilbene, 4,41 - bis-(4,5,6 - trichlorobenzoxazol - 2 - yl) - stilbene and 4,41 - bis - (benzoxazol - 2 - yl) -2,21-dichlorostilbene.
Patent GB-441445-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C27/28
Filed: 1935-07-05
Abstract: 441,445. Controlling aircraft. MANGOLD, S., 13, Gonzagagasse, Vienna. July 5, 1935, No. 19312. [Class 4] An aircraft has at least three forward propelling or lifting airscrews arranged at the apices of a polygon and driven from a common driving means through at least two differential gear means in series, means being provided whereby the airscrews may be differentially braked individually or in groups under control of a universally movable control lever whereby air screws or groups of airscrews to which no braking effect is applied are speeded up to the extent to which the others are slowed down in order to effect lateral steering in the case of forward driving airscrews and to maintain the craft in a horizontal position in the case of lifting airscrews. Fig. 1 shows an aircraft having lifting airscrews 1, 2, 3 disposed at the apices of an isosceles triangle symmetrically disposed with relation to the longitudinal axis of the aircraft. A single engine drives the crown bevel wheel 7, Fig. 3, of a differential gear comprising sun-wheels 10, 11 of which 10 is coupled to airscrew 1 and wheel 11 to a shaft 12 driving a pair of planet wheel 13, 14 which latter transmit drive through wheel 15 to airscrew 2 and through wheel 16 to airscrew 3. Brake drums 17, 18, 19 are provided on the shafts of the three airscrews, and a fourth drum 20 on shaft 12. It is thus possible to speed up airscrew 3 and slow down airscrew 2 by acting on brake drum 18 or effect the reverse by acting on brake drum 19. Similarly airscrew 1 may be slowed down and airscrews 2 and 3 speeded up by acting on drum 17 or the opposite result obtained by acting on drum 20. Control means are shown diagrammatically in Fig. 5, in which 21 is a lever universally pivoted at 22 and is arranged when swung backwards and forwards to pivot a yoke member 23 about bearings 24 so that by means of cranks 25 and connecting rods a double cone element is shifted either backwards or forwards to brake either drum 17 or drum 20. Hand lever 21 has a downwardly projecting arm 30 engaging a member 33 connecting rods 31, 32 connected to brake shoes 36, 37 acting on drums 18, 19 respectively. Separate forward propelling means may be provided or the shafts of airscrews 1, 2, 3 may be arranged to tilt into any position intermediate between the horizontal and vertical. Actuation of the brakes may be effected automatically by loaded lever or gyroscopic means. The main supporting surface may be made rotatable, be formed with adjustable louvres or may comprise adjustable trailing edge parts. Fig. 6 shows an arrangement of four lifting screws 40, 41, 42, 43, adapted to be controlled by means such as shown in Fig. 5. In this arrangement either airscrews 40, 41 or 42, 42, or 40, 42, or 41, 43 may be braked simultaneously. The braking effort may be applied by fluid pressure means. Lever 21 may be the controlling lever for the elevator and ailerons.
Patent GB-463931-A (GB)
Title: Improvements in or relating to rotary pumps, compressors, prime movers and the like
IPC: F04C2/44
Filed: 1935-07-06
Abstract: 463,931. Hydraulic transmission of power. KEELAVITE CO., Ltd., and BOOTH, M. B. July 6, 1935, Nos. 19328/35 and 14217/36 [the second Provisional Specification being divided out of the first Provisional Specification]. [Class 69 (ii)] [Also in Group XXVI] In a transmission unit a pump B and a motor A are connected by a valve gear, the ports in valve plates 62, 63 co-operating with ports 81 ... 84 in a disc 64 which by slight rotary movement may connect ports 65, 70 with the motor, or ports 66, 69 with the motor for reversal of flow. At a neutral or intermediate position of the disc 64, the pump inlet and outlet ports are connected with each other.
Patent GB-296521-A (GB)
Title: Improvements in or relating to electric control systems
IPC: H02J7/04
Filed: 1927-07-21
Abstract: 296,521. Igranic Electric Co., Ltd., Wright, S. R., and Currah, L. E. July 21, 1927. Charging and discharging batteries. - Valve filaments 8 of a radio receiving set are, supplied from an accumulator 4 upon closure of a switch 9, whereupon anode current is simultaneously supplied from mains M<1>, M<2>, and upon opening the switch 9, the accumulator, if undercharged, is recharged from the mains. With the switch 9 open, a primary 2 of a transformer is connected across the mains, and energizes through a secondary 2<a> a rectifier 3 for charging the battery. Upon the battery becoming fully charged a relay 7<a> opens and thus stops the charging. Closure of the switch 9 causes a relay 6 to open its contacts 6<c> to stop the charging and to close its contacts 6<b> to complete the circuit of another primary 1 associated with a rectifier and smoothing circuit to supply anode current. Auxiliary contacts 6<e> also open thus breaking the circuit of the relay coil 7b and so prevent the possibility, after the switch 9 is again opened, of the undercharged battery holding the contacts 7<a> open and thereby preventing recharging. A modification is described in which the relays 6 and 7<a> are mechanically associated with each other, and also a further modification in which direct current supply mains are used.