baber/WOPTO huggingface dataset:
Patent GB-222880-A (GB)
Title: Lamp globes
IPC: F21S13/00
Filed: 1924-10-03
Abstract: 222,880. British Thomson-Houston Co., Ltd., (Assignees of Dickerson, A. F.). Oct. 3, 1923, [Convention date]. Globes; reflectors.-A globe has its upper part 6 in the form of a surface of revolution, such as a paraboloid, and its sides 7 in the form of a frustum of a cone, and its closed lower end 8 is curved and made diffusing or clear, the sides 7 and the lower portion of the upper part 6 being covered by a metallic reflecting-coating 10 so as to redirect horizontal rays from the light source. The uncovered portion of the upper part may be of clear or diffusing glass for transmitting light to the background. The axis of the globe and the paraboloidal and conical sections coincide and the focal plane of the paraboloidal section intersects the conical section. In one form, the lower end 8 of the globe consists of an outer annular horizontal portion and a central curved portion concave or convex to the light source.
Patent GB-1460429-A (GB)
Title: Automatic gain control system for television camera
IPC: H04N5/235
Filed: 1970-05-14
Abstract: 1460429 Television HUGHES AIRCRAFT CO 14 May 1970 [4 June 1969] 23527/70 Heading H4F A T.V. camera capable of operating over a range of light levels from near-dark to very bright has an automatic light control system to protect the secondary electron conduction vidicon target against damage and to ensure that the camera tube operates at the point for optimum signal-to-noise ratio and picture resolution, the control system comprising a first fast feedback loop controlling the iris of a lens assembly and a second faster feedback loop controlling the camera tube voltage. As shown in Fig. 1, an optical system 10 includes a lens 11, automatic iris 45, a concentrically graded neutral density filter 55 and an automatically insertable and removable neutral density filter 56. The filter 56 has a transmission factor of 10<SP>-4</SP> and is mechanically coupled at 57 to an actuator 29. The light output from system 10 is supplied via an image intensifier 12 to a secondary electron conduction vidicon camera tube 13 having a photocathode 30 connected to an H.V. power supply 22. Supply 22 is controlled by a non-linear control function circuit 21 described in detail with reference to Fig. 4 (not shown). The video output from the camera 13 is fed through a preamplifier 14 to a video channel and is also fed to a pair of servo loops 40, 41, loop 40 controlling the voltage applied to the photocathode 30 and loop 41 controlling the iris 45 through a motor 27. The video output passes through circuits 15 ... 19 to a variable attenuator 20 adjustable by the operator to provide a desired reference level at the point 50. The response time of the loop 40 is much faster than that of the loop 41. The filter actuator 29 is controlled by a potentiometer 31 via switching logic 28, the potentiometer being coupled to the iris 45 whereby the switching logic is actuated when the iris is beyond a predetermined limit of open or closed position. The operating characteristics of the system are described with reference to graphs (Figs. 2, 3, not shown).
Patent GB-663334-A (GB)
Title: Improvements in electric contactor switches
Inventor: FERGUSON ALEXANDER DALGETY
IPC: H01H33/70
Filed: 1949-09-12
Abstract: 663,334. Air-blast switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 11, 1950. [Sept. 12, 1949] No. 23531/49. Class 38 (v). A contactor suitable for use as a line switch in a traction or other motor control system, comprises an arc chute 3 associated with a blowout coil 4, and a nozzle 12 supplying a blast of pressure gas to the contacts 1,2, over a normallyclosed valve 14 which is opened in response to operation of an overload relay. As shown, contact 2 is operable by a coil 9 energised over the normally-closed contacts 18 of an overload relay 16 and contacts 25, 27 of a manual switch 24 ; the contactor may instead be operated by an electro-pneumatic motor. The valve 14 is controlled by a coil 15 in series with contacts 17 of the relay 16 and with contacts 28 which are open when contact 2 is fully open but are closed during the movement of contact 2 and when contact 2 is fully closed. On overload, coil 23 is energised, thereby releasing latch 21 to open contacts 18 and close 17, thereby releasing latch 21 to open contacts 18 and close 17, thereby opening contact 2 and energising coil 15. The contactor may be opened manually by moving contact 25 to the mid-"off"' position shown, the coil 15 in this case remaining deenergised as contacts 17 are open. The contactor is closed after overload by closing contacts 25, 26, thereby energising a coil 20 and reclosing contact 18 which is held by latch 21, 22, closure of contacts 25, 27 then energising coil 9.
Patent GB-1153461-A (GB)
Title: Improvements relating to Stabilizers for Vessels
Inventor: HODGSON DOUGLAS
IPC: B63B39/06
Filed: 1965-06-03
Abstract: 1,153,461. Stabilizing ships. D. HODGSON. 2 Sept., 1966 [3 June, 1965], No. 23627/65. Heading B7M. [Also in Division G3] A vessel is stabilized against roll and pitch by power-actuated major fins hinged about horizontal axes below the waterline and carrying power-actuated minor fins hinged about axes at right angles to the major fin axes. As described, a ship is provided with a number of major fins such as 12, Fig. 4, each of which is pivoted about a horizontal axis 13 by hydraulic rams (not shown). These major fins are normally stowed vertically in cavities on each side of the ship but, when likely to be required, are extended to a position 45 degrees above the horizontal. Then, when the ship rolls, a pendulum detector, which is duplicated for reliability, closes electrical contacts to cause operation of solenoid valves controlling hydraulic rams so that all the fins on the side of the ship which is low are temporarily pulled down to a position 45 degrees below horizontal, to oppose roll by reaction of water pressure, and later returned slowly to their initial positions. Alternatively, the major fins are extended horizontally during roll which is then opposed by controlling the minor fins, such as 30, each of which is pivoted about an axis 31 at right angles to the major fin axis, by further hydraulic rams which are controlled by the pendulum roll detector. In this arrangement roll is opposed by the planing action of the minor fins with forward travel of the ship. Fin movements close electrical contacts to operate an hydraulic boost ram to produce more rapid movement. Stabilization by control of both major and minor fins is referred to. To oppose pitching of the ship, a pitch responsive pendulum is arranged to operate the fins in the same direction on both sides of the ship but in opposite directions forward and aft.
Patent GB-1182184-A (GB)
Title: Trailer Tow-Bar Damper Mechanism.
IPC: B60D1/02
Filed: 1967-05-22
Abstract: 1,182,184. Tow-bar damper. ORENDA Ltd. 22 May, 1967 [9 June, 1966], No. 23732/67. Heading B7T. A tow-bar damper comprises a box-shaped member 11, adapted to be connected to a trailer 24, and a member 12, including a ring 64, adapted to be connected to a towing vehicle, the two members being pivoted about a horizontal axis 13, wherein a damper 79 is bolted to member 11 and connected to a lug 74 of member 12 by a rod 76, this damper damping the pivotal movement of the two members about pivot 13, and there also being a resilient spring assembly located between plates 30, 31 which acts between the members to urge them into a predetermined relative position about axis 13. The axis 13 comprises a pivot pin 66 passing through a block 54, forming part of member 12, and lugs 19 forming part of member 11. The spring assembly comprises nine coil springs between plates 30, 31, there passing through two of the springs and the plates, rods 38 connected at their ends by bars 41 and 46. Extending from bar 41 are tongues 52 which fit slots 53 in block 54 and pivot about a pin 55. Abutments 25 and 27 limit movement of the spring assembly and rods 38 have integral with their frusto-conical members 44, 45 adapted to limit the movement of the rods through the plates 30, 31. When member 12 pivots in a clockwise direction about axis 13, the spring assembly takes up the position shown in the fig. where the spring force acts on plate 30 and is transmitted via member 44 and tongues 52 to oppose the motion. Movement of rods 38 is limited by abutment 86. Anticlockwise motion of member 12 about axis 13 will cause plate 30 to contact abutments 25 and the spring force to act on plate 31, which is drawn away from abutments 27, via member 45, rods 38 and tongues 52 to oppose the motion. Movement of the member 12 in the anti-clockwise direction is limited by face 85 contacting abutment 81.
Patent GB-237518-A (GB)
Abstract: 237,518. Beaumont, J. H., (Fingerprint Machine Corporation). Feb. 27, 1925. Toothed gearing. - In finger-print machines, the paper carrier is rotated by a spring motor through a complete turn, but pauses during the turn for a definite time in front of an electric heater. The shaft 4 of the carrier is rotated through gearing 35, 36, the gear 36 being interrupted as shown at 37 and a spring-urged, stopcontrolled sector 38 having teeth 39 forming a continuation of the teeth 36. When the carrier is in front of the heater, the gear 35 passes from the gear 36 on to the teeth 39 and the carrier is held stationary by a fixed catch 44 co-operating with a spring plunger 43 on the frame 2 of the carrier. When the sector 38 contacts with the stop 40, the gear 35 again engages the gear 36 to complete the rotation of the carrier, the sector being drawn to its normal position against the stop 41 by a spring 42.
Patent GB-1536685-A (GB)
Title: Process for the preparation of 1,1-dihalo-1,3-dienes
IPC: C07C17/25
Filed: 1975-06-02
Abstract: 1,1-Dihalo-1,3-dienes of the formula I in which the substituents have the meanings given in Claim 1 are prepared in high yield and high purity by reacting tetrahaloalkanes of the formula II with a tertiary amine at at least 100 DEG C. <IMAGE>
Patent GB-1074831-A (GB)
Title: Rotary direct contact liquid-gas interchangers
IPC: F28C1/00
Filed: 1964-06-09
Abstract: 1,074,831. Gas/liquid contact apparatus. VOL-AIR Inc. June 9, 1964 [June 11, 1963], No. 23830/64. Heading B1R. In a gas/liquid contact apparatus of the rotary type liquid is sprayed from pipes 34 and 35 into curved passages extending through an annular rotor 16 and a fan mounted for rotation with the rotor 16 on a shaft 14' draws a gas, e.g. air, through louvred walls 14 surrounding the casing and through the passages in the rotor the arrangement being such that m operation liquid is ejected from the outer ends of the channels in the rotor and is atomised by contact with the walls 14, thus the gas passing therethrough contacts atomised liquid before flowing through the rotor in countercurrent to the liquid. The channels in the rotor preferably have the curvature of an involute of a circle and the rotor and most other parts of the apparatus may be made of plastics material.
Patent GB-388675-A (GB)
Title: Atmospheric vapour burners
IPC: F23D11/44
Filed: 1932-08-26
Abstract: 388,675. Atmospheric vapour-burners. AKTIEBOLAGET RADIUS, Tellusborg, Stockholm. Aug. 26, 1932, No. 23959. Convention date, Aug. 27, 1931. [Class 75 (i).] A cleaning needle 12 and a vapour-controlling valve 17 are so related that when one is operative the other is inoperative and vice versa. As shown, a needle valve 17 for controlling the inlet 18 to the nipple 10 is provided with a screw-threaded operating spindle 15 comprising a pinion 19 engaging a rack 14 carrying the cleaning needle 12 so that the latter moves from the inoperative into the operative position when the valve 17 is moved from the operative into the inoperative position. A length of pinion rod may be turned down at one end to form the valve 17 and at the other end to form a pin 20 for attachment to the spindle 15.
Patent GB-1481773-A (GB)
Title: Mounting gas turbine units
IPC: F01D25/30
Filed: 1975-06-03
Abstract: 1481773 Gas turbine plant HITACHI Ltd 3 June 1975 [5 June 1974] 23993/75 Headings F1G and FIT To reduce noise, a stationary gas turbine plant has a working fluid inlet duct 4 and/or exhaust duct embedded in the plant foundations 8. Inlet duct 4 directs air 9 from a filter 3 via silencer 5 to an inlet plenum 6 of the plant compressor. The latter supplies air via a combustion chamber to a turbine which exhausts through a plenum (11), Fig. 3 (not shown) and an embedded duct (12), containing a silencer (13), to a vertical stack (14). The plant drives machinery 2.
Patent GB-321739-A (GB)
Title: Process for the manufacture of ceramic products
IPC: C04B33/14
Filed: 1928-08-21
Abstract: 321,739. Carpmael, A., (I. G. Farbenindustrie .4kt.-Ges.). Aug. 21, 1928. Clay, earthenware, and like plastic compositions; colouring.-Coloured bricks, earthenware. and other ceramic products are obtained by incorporating ferrous-ferric oxide, as chemically produced in a finely divided state, with a clay or clay mixture and then forming and firing. Suitable oxides are obtained in the reduction of aromatic nitro compounds to the corresponding amines by the processes described in Specifications 274,562 and 279,283. [both in Class 1 (iii). Oxides &c., Metallic], or by precipitating ferrous hydroxide from a ferrous salt and oxidizing by heating. Other colouring agents, for instance manganese black and ochre, may also be added.
Patent GB-1070241-A (GB)
Title: Improvements in or relating to metallic coatings
IPC: C23C2/38
Filed: 1964-06-11
Abstract: <PICT:1070241/C6-C7/1> In a continuous process of applying metallic coatings, elongated articles are drawn at constant tension through a bath of molten coating metal. In a galvanizing plant Fe wires 1 arranged in the same vertical plane pass through pretreatment stages (not shown) e.g. annealing and pickling from which each wire passes at least once around a pair of rollers forming a braking and feeding device 2, one roller being driven by a variable speed motor and at least one roller having adjustable brakes to maintain the constant tension, and then over a tension measuring device 5 comprising a feeler roller 6 connected to a force measuring device before entering a zinc pan 9 over rollers 8, 11; a fluxing and drying stage may be located between roller 8 and the pan. The wires leave the pan vertically passing through a water cooled drum 14 having heart shaped passages for the wire which ensure uniform cooling, pass over rollers 12 and are coiled on a winding device 13 turning with a constant moment. A1 coatings are referred to.
Patent GB-676420-A (GB)
Title: Improvements in or relating to an emulsion coating composition and method of manufacture thereof
IPC: C09D5/02
Filed: 1948-09-15
Abstract: A glossy emulsion coating composition comprises a vehicle mixed with a pigment-in-oil, oil-in-water emulsion in which the pigment has been rendered oilophilic.  Specified vehicles are dehydrated castor oil fatty acid, pentaerythritol glycerine-phthalic anhydride resin, linseed oil-maleic anhydride resin, and a styrene copolymer emulsion. Driers such as cobalt and lead naphthenate, emulsifying agents such as 2 - amino - 2 - methyl - 1 - propanol and aqueous ammonia, and plasticizers such as tricresyl phosphate may also be present. Titanium dioxide coated with aluminium resinate or with hydrogenated rosin or its sodium salt is the preferred oilophilic pigment.ALSO:A glossy emulsion coating composition is prepared by forming an aqueous dispersion of a pigment, the pigment being rendered oilophilic either before or after dispersion in water, mixing said aqueous dispersion with at least part of the oil vehicle which is to form the discontinuous phase of the fluid emulsion so forming a pigment in oil water-in-oil dispersion, and converting said water-in-oil dispersion to a pigment-in-oil, oil-in-water emulsion.  The pigment particles may be coated with an oil-soluble polar organic compound which may be a metallic salt or soap of an organic acid e.g. aluminium resinate. The oil vehicle used for the oil phase is a polar organic compound. The amount of water used for the formation of the initial aqueous pigment dispersion is that required for the final emulsion.  A protective colloid such as casein may be present to stabilize the final emulsion while driers such as cobalt and lead naphthenate, emulsifying agents such as 2-amino-2-methyl-1-propanol and aqueous ammonia and plasticizers such as tricresyl phosphate may also be present. Titanium dioxide coated with aluminium resinate or with hydrogenated rosin or its sodium salts, is the preferred oilophilic pigment.
Patent GB-1456760-A (GB)
Title: Pumps or motor fluid mechanisms
IPC: F03C1/06
Filed: 1974-05-31
Abstract: 1456760 Reciprocating motors and pumps POCLAIN 31 May 1974 [20 June 1973] 24246/74 Heading F1A [Also in Division F2] In a reciprocating-piston pump or motor (e.g. a variable-flow pump), a constriction in the flowpath of fluid from working space 14 to fluid bearing cushion 11 is provided by a clearance K, between a rib 16a and the cylinder wall. If the clearance is provided by a rib (16), Fig. 1, (not shown), at the head of the piston, the constriction is found to be dimensionally unstable.
Patent GB-793423-A (GB)
Title: Flameless reaction of gaseous hydrocarbons with amounts of oxygen insufficient for complete combustion, for the formation of carbon monoxide and hydrogen
IPC: C01B3/30
Filed: 1956-08-09
Abstract: Modification of the process of the parent Specification in which a finely divided catalyst in a fluidized bed is employed instead of a fixed bed catalyst.  According to said Specification, in the production of synthesis gas by the partial catalytic oxidation of a gaseous hydrocarbon, steam is added to oxygen-containing gas before admixing with hydrocarbon gas in an amount such that local flame reaction initiated at the point where the gases meet is carried away from the mixing apparatus.  The hydrocarbon gas may contain steam in which case the volume ratio of steam to oxygen-containing gas is greater in the oxygen-containing gas than in the hydrocarbon-containing gas.  The catalyst may be magnesite containing 3 per cent of nickel.  Coke oven gas containing 30 per cent of methane may be reacted with oxygen at 950 DEG  C. and atmospheric pressure.  Both gases may be saturated with steam at 70 DEG  C. and an additional amount added to the oxygen in an amount equal to that of the oxygen.  The apparatus of the aforementioned Specification may be employed in an inverted position.
Patent GB-332093-A (GB)
Title: Improvements in or relating to sliding and folding doors and the like
IPC: E06B3/48
Filed: 1929-08-09
Abstract: 332,093. Aldam, E. H. Aug. 9, 1929. Sliding doors.-Vertically sliding folding doors comprise leaves a, a<1> - - a<3> guided in the jambs by rollers &c. b on axles fixed to angles or channels in the leaves at the middle or alternate edges. The door is counterbalanced by weights y or springs z, and cables attached to the roller pivots of the lowest leaf. The top leaf may be half the depth of the others and the roof is preferably extended to cover the projecting part of the folded door. Sliding or pivoted spring-controlled flaps may cover the meeting edges of door and frame and may be automatically moved away by the door when opening. Means are preferably provided to throw the hinging points of the leaves out of alignment on the first opening movement, such as a projecting pin &c. h on the lowest leaf and a corresponding guide on the jamb.
Patent GB-1070966-A (GB)
Title: Electron beam tube and method of making same
IPC: H01J23/00
Filed: 1964-06-12
Abstract: 1,070,966. Klystrons. SPERRY RAND CORPORATION. June 12, 1964 [June 12, 1963], No. 24459/64. Heading H1D. A multi-cavity klystron is constructed of individual resonators which are electrically pretuned to a desired frequency and are then assembled to form a unitary structure in one brazing operation, the cavities being trim tuned after the brazing operation. The units are partly formed from deformable material, and the pretuning step comprises deforming the deformable parts. A supporting rod threads the drift tubes connecting each adjacent cavity, and each cavity which is initially resonant at a higher frequency than the desired are tuned simultaneously to a lower frequency by altering the interaction gap. The formed cavities may be stagger tuned so that the klystron operates over a broad frequency band. Individual cavities are trim-tuned by adjustment of a flexible diaphragm which forms part of the conductive boundary of each cavity.
Patent GB-368663-A (GB)
Title: Process for the production of threads or filaments from aqueous solutions of cellulose
IPC: D01F2/22
Filed: 1931-08-31
Abstract: In the production of artificial filaments or threads from aqueous cellulose solutions, for example viscose, a step of dehydration of the filaments &c. by evaporation of the water therefrom is included intermediately between the stages of coagulation and regeneration. The dehydration is suitably carried out by passing the coagulated filaments, if desired in a state of tension, through a hot gas, for example air at 100 DEG  C., or a hot anhydrous liquid such as Vaseline oil at about 120 DEG  C.  When aqueous baths are employed to produce the initial coagulation, these may be warmed in order to accelerate the subsequent dehydration.
Patent GB-1419638-A (GB)
Title: Cartridge for a band
IPC: G03B21/11
Filed: 1972-12-08
Abstract: 1419638 Tape cartridges XEROX CORP 8 Dec 1972 [8 Dec 1971] 24509/75 Divided out of 1419637 Heading B8M Part B The subject matter is identical to that of the parent Specification 1,419,637, the claims being directed to the adjustable exit port of the cartridge.
Patent GB-221961-A (GB)
Title: Belt moving mechanism
IPC: F16H7/22
Filed: 1923-10-03
Abstract: 221,961. Baker, H. G. Oct. 3, 1923. Belt forks.-Belt-engaging rollers B with two or more grooves or corrugations parallel or inclined to the base C of a belt fork are secured to the belt tines D, or similarly corrugated tubes may surround the tines. Specifications 5089/97 and 4862/09 are referred to.
Patent GB-172086-A (GB)
Title: Improvements in and relating to supervisory or indicating and recording mechanism for valves
IPC: F16K37/00
Filed: 1920-08-24
Abstract: 172,086. White, A. E., (Newman Clock Co.). Aug. 24, 1920. Indicating and recording mechanism, applications of.-Relates to supervisory or indicating and recording mechanism for valves, more particularly for automatic sprinkler systems, and comprises a hinged key or record-producing member 2, Figs. 1 and 2, which is closed up in the box 1, as shown in full lines in Fig. 2, when the valve is in an abnormal (closed) position. The sliding lid 9 of the box is connected, as shown, to the valve spindle 14 so that when the valve is in its normal (open) position the lid is drawn up and the key swung out by the action of the spring 4, as shown in dotted lines in Fig. 2. In this position it is accessible to a watchman for the application thereto of a tell-tale clock in which the record is made; a visible indication is also given that the valve is in its normal (open) position.
Patent GB-767173-A (GB)
Title: Improvements in and relating to synchronized speed control of d.c. motors
Inventor: LUDBROOK LESLIE CARTER
IPC: H02P7/26
Filed: 1953-10-01
Abstract: 767,173. Automate speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 28, 1953 [Oct. 1, 1953], No. 24598/52. Drawings to Specification. Class 38 (4). In an automatic speed control system such as that described in Specifications 767,171 and 767,172, a D.C. motor is fed through a gridcontrolled rectifier, controlled by a demodulator and frequency-responsive network fed from a tacho-alternator. According to the present invention, this prior system is used as a coarse speed control, and in addition the speed is normally locked to a reference frequency which is injected into the circuit, either in series with the output of the frequency-responsive network or by a further winding on the demodulator transformer (Fig. 3, not shown).