baber/WOPTO huggingface dataset:
Patent GB-633617-A (GB)
Title: A new or improved method of and means for the full-scale photographic reproduction of drawings
IPC: G03C5/10
Filed: 1945-03-28
Abstract: 633,617. Copying drawings photographically. LATHAM, J. R. March 28, 1945, No. 7822. [Class 98 (ii)] [Also in Group XL (a)] Full-scale reproductions of drawings on to metal or other rigid plates that are to be formed into structural parts are produced by making the original drawing on a phosphorescent surface coated on a rigid support so that the drawn lines mask said surface, exciting said surface by means of a tungsten filament lamp or like source having similar spectral emission, photographically printing a negative therefrom by contact on to a rigid or non-stretching light-sensitive sheet and using the negative to print a positive on to the workpiece. The original drawing surface may be formed by coating first with a primer as of mid-grey colour and then with a preferably matt-white luminescent coating as of calcium sulphide dispersed in a resin of low acidity dissolved in a solvent also of low acidity, e.g. a polystyrene resin dissolved in toluene, an alcohol, or a hydrocarbon solvent. The drawing is made thereon with the usual brass or silver point, the sheet is excited as by exposure to a tungsten lamp, and the print is made on to a slow process plate produced. as by spraying light-sensitive emulsions upon either the workpiece itself, or upon a transparent or translucent sheet as of glass, synthetic resin, or non- stretch paper when the print is to be used for printing a positive on to the work-piece, which latter in this case is coated as by painting or spraying with a silver bromide emulsion. The printing steps may be made in a vacuum press. Reference is made to a known method of reproducing drawings in which the drawing is copied in a large camera which is then converted into a projector for printing the negative on to the work-piece or a template therefor. Specifications 553,152 and 557,109 is referred to.
Patent GB-179517-A (GB)
IPC: B41J21/02
Filed: 1922-03-17
Abstract: 179,517. Wanderer - Werke vorm. Winklhofer & Jaenicke Akt.-Ges. May 3, 1921, [Convention date]. Tabulating-mechanism. - In column-printing arrangements for typewriters or calculating-ma chines, comprising a stop-rack mounted on the paper-carriage and provided with adjustable column-stops adapted to engage a stationary stop, the column stops consist of two parts which can be moved relatively to impart to the paper-carriage a fine forward or backward adjustment. In the arrangement shown in Figs. 1 and 2, the column stops comprise a stop finger 10 formed on a sleeve 11 which is splined on a stop-rack 9 and is formed with two longitudinal recesses 13 engaging jaws 17 on a sleeve 16 splined on the stop-rack, the faces of the jaws being threaded to engage a nut 26 revoluble on the sleeve 11. The sleeves 11, 16 are adjustable bodily on the stop-rack and the sleeve 16 can be secured by means of a pivoted catch 21 adapted to engage one or other of a series of notches 8 at letter-space intervals. The fingers 10 co-operate with a stationary stop-member 39 to determine the approximate position of the paper-carriage, the nut 26 being employed for fine adjustment. The stop-member is formed with a notch 36 Ranked by inclines 37, 38, and is provided with a pivoted stop 41 playing between stop-screws 42, 43. The stop-rack can be rocked to release the fingers 10 from the step-member 39, by means of a hand-lever 30 provided with a pin 32 engaging a bell-crank 33 on the stop-rack. A spring 35 returns the stop-rack and hand-lever to the normal position.
Patent GB-859961-A (GB)
Title: Improvements relating to fishing rods
Inventor: THOMAS TERENCE BARRINGTON
IPC: A01K87/00
Filed: 1958-03-12
Abstract: In a fishing rod comprising a handle portion, an intermediate portion and a top portion, the stiffness of the handle portion decreases towards its free end and has an average value which is less than that of the adjacent lower portion of the intermediate portion.  The stiffness of the handle decreases more rapidly along the portion adjacent its upper end than it does along the portion adjacent its free end.  The handle comprises a core of hexagonal cross section and a cork sleeve.  The core is tapered from the upper end to the lower end, the tapering being greater for the first one third of its length from the upper end.  The cork sleeve tapers for the first one third of its length from the upper end, is cylindrical for the next third and tapers again for the last third.  Two rings having recesses for receiving the ends of a mounting plate for a reel are adjustably secured to the cork sleeve.  The intermediate and top portions of the rod taper from their lower ends to their top ends and are formed in sections, some of which are hexagonal in section, others circular. The rod may be made of cane, steel rod or tube, or fibre glass rod or tube.
Patent GB-1179765-A (GB)
Title: Improvements in or relating to the Operational Control of Steam Turbines
IPC: F01D17/18
Filed: 1967-02-20
Abstract: 1,179,765. Steam turbines. SKODA, OBOROVY PODNIK. Feb.20, 1967 [March 23, 1966] No.7933/67. Heading F1T. [Also in Division G3] A speed control system for a steam turbine is switched between throttle governing and nozzle governing modes by rotation of a cam 1 providing a feedback signal from the rod 9 of the governor valve servopiston. The cam is supported in bearings on rod 9 and has vanes (6, 7). Fig. 2 (not shown), located on opposite circumferential sides of a radial vane 8 fixed to rod 9. An electrically actuated valve controls the supply of fluid to the spaces between the vanes to rotate the cam between two angularly spaced positions corresponding to the two control modes. In a modification, Fig.3 (not shown), the cam is rotated through a rack-and-pinion by a piston controlled by the electrically actuated valve.
Patent GB-198819-A (GB)
Title: Improvements in anatomical articulators for dental use
IPC: A61C11/02
Filed: 1922-03-18
Abstract: 198,819. Wilson, S. H. March 18, 1922. Teeth, artificial. - An anatomical articulator, of the kind in which the jaws are jointed together by pins in one jaw engaging inclined slots in the other, is fitted with adjustable inclined planes on the jaw formed with the slots and with co-acting projectors on the other jaw. The inclined planes &c are at the sides of the jaws so as to leave the rear portion of the instrument unobstructed. An adjustable setting device may be secured to the articulator and is located behind the teeth. The upper jaw 1 is fitted with pins 4 engaging inclined slots 5 in the lower jaw 2 and with screws 15 co-acting with inclined planes 12, 13 vertically adjustable in slots on the lower jaw by means of clamping nuts 11. Springs 6 normally maintain the pins 4 at the lower ends of the slots 5. The planes 12, 13 are slightly more steeply inclined than the slots 5. The plaster models are secured to the jaws by means of tapered conical pins 7, S so that they may be removed and replaced as required. The setting device comprises a pillar 16 sliding and turning in a boss on the lower jaw and held in place by a screw 17. A rectangular slide 19 is adjustably held in a slot in the pillar 16 and carries a bar 24 and yoke 25. The yoke comprises a central pointer 29 and side plates 26, the surfaces 31 of which correspond to the compensating curve and are bounded in front by a ridge 28. The ridge is brought into contact with the canine teeth so as correctly to position the surfaces 31 for setting the molars. The bar 24 may rock laterally on the slide 19.
Patent GB-365867-A (GB)
Title: Improvements in swings
IPC: A63G9/12
Filed: 1931-03-16
Abstract: 365,867. Trestles. AUSTER, Ltd. and LANE, P., 174, Barford Street, Birmingham. March 16, 1931, No. 7972. [Class 52 (v).] A swing comprises a top bar 3, Fig. 1, detachably supported at each end upon a bracket or part carried by a pair of folding legs having a stop or overhanging part 14 on each leg adapted when the legs are opened out to engage with the bar but moving clear thereof when the legs are folded together to admit removal of the bar. The legs may be hinged to brackets 7, Fig. 6, to which are fixed brackets 8 formed by vertical lengths of angle-iron welded back to back to form V-shaped channels 9. The top bar 3 which may be a metal tube carries angle-irons 11, Fig. 11, which are stayed by brackets 13, the irons 11 being forced into engagement with the brackets 8 by the action of the upper ends 14 of the legs bearing on the top of the tube 3. One of each pair of legs may be provided with a lug 16, Fig. 9, which on the legs being folded engages beneath the bar 3 to raise it and disengage the members 8, 11. The legs may be foldable and held in the extended position by the hinged stay 5, Fig. 1, described in Specification 365,868.
Patent GB-464307-A (GB)
Title: Improvements in or relating to distillation
IPC: B01D3/40
Filed: 1936-03-17
Abstract: <PICT:0464307/III/1> A process for fractionating a liquid mixture of a number of components having different distribution ratios between a selective solvent and the said mixture, said solvent being adapted to form two liquid phases when contacted with the component having the lowest distribution ratio, comprises fractionating the mixture with the solvent in a distilling apparatus and withdrawing top and bottom products, and maintaining in the feed mixture and in the top product substantially the same ratio of the solvent and the component having the lowest distribution ratio.  In an example, a mixture of components A and B is distilled with a solvent C in a column 10.  By adjustment the proportion of A to C in the mixture fed in at 11 is the same as that taken off from the top of the column and therefore practically pure B is drawn off from the bottom through pipe 18.  The original mixture enters through pipe 22 and is mixed with solvent from pipe 24.  In one method of operation valves 25 and 26 are regulated to bring the proportion of A to C in the feed into agreement with that in the top product.  Alternatively the top product is led through a condenser 27 to a chamber 28 in which the liquid will separate into its two phases.  By adjusting valves 31 and 32 portions of each phase can be returned to the tower 10 as reflux. The proportion of A and C withdrawn through pipes 41 and 39 can thus be adjusted to equal the proportion in the mixture supplied to the tower.  Chamber 53 may be utilized for a preliminary solvent separation.  Column 42 serves for purification of the product discharged along line 41.  In order to ascertain how to operate the regulating valves, samples of liquid are taken at various points in the apparatus and analyzed.  Once the apparatus is functioning satisfactorily, however, regulation may be guided by observation of the temperature changes in the column. Specifications 348,817 and 462,630 are referred to.
Patent GB-627342-A (GB)
Title: Improvements in or relating to current-stabilising circuits
IPC: H02M7/06
Filed: 1947-03-27
Abstract: 627,342. Rectifying ; automatic regulation. PHILIPS LAMPS, Ltd. March 27, 1947, No. 8342. Convention date, March 30, 1946. [Classes 38 (ii) and 38 (iv)] The output volts of a supply system are stabilized by feeding the D.C. windings of chokes in the system with current from an auxiliary rectifier supplied from the series connected secondary windings of saturated and non-saturated transformers, the primary windings of which are connected in parallel, through a condenser and directly respectively, to the A.C. supply. A six-phase rectifier system supplying arc carbons 19, comprises three valves 13, 14, 15 fed from the six secondaries 11, 12, connected through interphase transformers 16, of a transformer with secondaries 7, 8, 9 supplied from input terminals 1, 2, 3 through chokes 4, 5, 6. These chokes have D.C. windings 20, 21, 22 supplied in series from an auxiliary rectifier 24 which is connected to the series connected secondaries 25, 26 of saturable and non-saturable transformers 27, 28. The primaries of these transformers are supplied in parallel from A.C. terminals 1, 2. A condenser 30 is in the supply to the primary of the saturable transformer 27. The D.C. magnetizing current may be altered by a variable resistance 23.
Patent GB-1011679-A (GB)
Title: Improvements in or relating to electrostatic recording
IPC: G11B9/00
Filed: 1963-03-01
Abstract: 1,011,679. Electrostatic recording. E. I. DU PONT DE NEMOURS & CO., March 1, 1963 [March 5, 1962], No. 8399/63. Heading G5R. Noise inherent in a dielectric tape is reduced prior to recording by subjecting the tape to an atmosphere of gaseous ions and then heating it to at least 40‹ C. for a time sufficient to reduce the noise level by a factor of at least 2 and which may be as high as 30. The tape 11 is fed past record/playback electrodes 16 and 17 and past two ion sources 18 and 19 to either side of the recording point. A preferred ion source shown in Fig. 3 comprises a discharge electrode 28 mounted such that fine discharge points 29 lie just below the surface of the deck 31 in an opening 30. Potentials of 2000-30,000 V, supplied by transformer 34, give an electrostatic field gradient of at least 30,000 V/cm. sufficient to ionize the air in contact with the tape. The tape, usually of polyethylene terephthalate, is then heated to at least 40‹ C. (but   below its softening temperature) and the raised temperature is maintained for sufficient time to reduce the noise level by a factor of 2. Recording noise is further minimized by maintaining the tape during recording at a temperature of 15-30‹ C. and at a relative humidity of 67-63%.
Patent GB-1387811-A (GB)
Title: Process for the colouration of polyester fibres
IPC: C09B43/28
Filed: 1971-04-01
Abstract: 1387811 Disperse disazo dyes YORKSHIRE CHEMICALS Ltd 14 March 1972 [1 April 1971] 8440/71 Heading C4P [Also in Division D1] Disperse disazo dyes of formula wherein R<SP>1</SP> and R<SP>5</SP> are alkyl, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are independently H, Cl, Br, alkyl or alkoxy and the nucleus A may be further substituted by alkyl or aryl groups are prepared by alkylation of the corresponding hydroxy-disazo dyes. They are used to colour polyester fibres in yellow and orange shades.
Patent GB-943003-A (GB)
Title: Improvements in or relating to electron discharge devices and circuit arrangements embodying such devices
IPC: H01J23/083
Filed: 1960-03-10
Abstract: 943,003. Travelling wave tubes. TELEFUNKEN G.m.b.H. March 10, 1960 [March 12, 1959], No. 8470/60. Heading H1D. A travelling wave tube has means for producing an annular electron beam 2, two or two sets of electrodes 3, 4, within the beam for generating a spatially periodic electrostatic field and a helix 5 surrounding the beam for setting up a uniform electrostatic field for focusing the beam in conjunction with the spatially periodic field and carrying a travelling wave. The spatially periodic field means comprises a bifilar helix 3, 4, or two sets of conducting rings, the helices or sets carrying different D.C. potentials. The three helices are supported by ceramic rods or glass tubes.
Patent GB-339905-A (GB)
Title: Improvements in flexible closures or fasteners
IPC: A44B19/30
Filed: 1930-03-17
Abstract: 339,905. Binns, E. H., March 30, 1929, [Convention date]. Sliding-clasp fastenings. - In sliding-clasp fasteners of the type described in Specifications 259,138 and 260,502, in which the clasp has a detent for engaging the locking elements to lock the clasp in any position, the detents are on the side of the clasp and engage between the ends of the elements fastened to the fabric. The slider has scroll-like corners 28 for ease of finger manipulation. Detents 35 are pivoted on a shaft 30 and have knurled edges, for turning down into engagement between the ends of the elements exposed by the clasp. A stop 37 limits the motion of the detents and a stud 40<a> engages a notch 38 to hold thedetents in engaging position. A cover 40 protects the detents. Certain of the elements may be deformed or bent, to prevent the entire removal of the clasp.
Patent GB-858966-A (GB)
Title: Fuel injection nozzle for internal combustion engines
IPC: F01L9/20
Filed: 1958-03-17
Abstract: 858,966. Electromagnetic fuel injectors. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION] March 17,1958 [May 10, 1957], No. 8527/58. Classes 7(3) and 7(6). [Also in Group XXXV] An electromagnetic fuel injection nozzle comprises a plate valve 48 urged by a spring 44 towards a plurality of fuel outlet orifices 68 and forming the armature of a solenoid 22. The coil 22 is surrounded by a body 10, 28, arranged to form two poles 57, 59, facing raised lands 52, 54 on the valve 48, the poles 57, 59, being slotted to reduce their surface area. The fuel flows through a central conduit 14, the wall of which is slotted at 16 to reduce eddy currents, and through subsidiary conduits 18 so that fuel reaches the orifices 68 from all directions, the spring 44 being star-shaped to permit fuel flow therethrough. On energization of the coil the armature 48 is lifted off the orifices 68 to permit injection and travels upwards until the poles 52, 57 are in contact, the poles 59 being arranged above the plane of the poles 57 so that an air gap of 0À002 inches is maintained between the poles 59, 54, when the valve is raised to facilitate separation of the armature from the pole 57 when the coil is de-energized. The valve 48 is of silicon steel with a chromium-plated wearresistant surface 50 and the orifices 68 are carried by a stainless steel plate 62 and discharge into a tapered chamber 60 in a member 56 screwthreaded into a brass body member 40 and adjustable to adjust the distance of the valve 48 from the poles 57, 59. The member 40 is also adjustable to adjust the initial tension of spring 44. Specification 858,961 is referred to.
Patent GB-724575-A (GB)
Title: Improvements relating to cartridge type electric fuse links
Inventor: GIBSON-WOOD DESMOND HUBERT
IPC: H01H85/153
Filed: 1953-03-27
Abstract: 724,575. Fusible cut-outs. FERGUSON PAILIN, Ltd. March 27, 1953, No. 8570/53. Addition to 563,600. Class 38 (1). In a modification of the cartridge fuse of the parent Specification, an end plate 4 fitted to one or both ends of a barrel 1 is formed with a central aperture embracing a circle of fusible elements 21, the ends of which are passed through its aperture, bent over and soldered or brazed to the outer face of the plate. A bridging member may extend across the aperture for the attachment of a terminal tag 8. Where it is desired to employ a further ring of fusible elements 3<SP>1</SP>, Fig. 2, a second ring-shaped end plate 6 is soldered or brazed to plate 4 over an annular region and the elements 3<SP>1</SP> are secured thereto as in the case of elements 21, the diameter of the aperture in plate 6 being such that elements 3<SP>1</SP> are located inwardly of elements 2<SP>1</SP>. In this case the bridging member 6<SP>1</SP> extends across plate 6.
Patent GB-885367-A (GB)
Title: Improvements in or relating to the production of blade wheels
IPC: F01D5/04
Filed: 1960-03-11
Abstract: 885,367. Making turbines etc.; punching; milling. SVENSKA ROTOR MASKINER A.B. March 11, 1960 [March 14, 1959], No. 8632/60. Classes 83 (2), 83 (3) and 83 (4). In making a turbine &c. blade-wheel comprising a disc 10 having at least one ring of axial blades 12, a blank is cast in the form of a disc having a ring of separate axial bladeprojections 11, the disc is turned to final shape, arid the whole length of each blade is machined in a single operation by a milling cutter 13 controlled by a pattern (not shown). A blank of nodular cast-iron may be cast in a shellmould, (Fig. 3, not shown), each blade projection haying an extension 14 for securing a ring to the blade ends. The extensions 14 may be machined to cylindrical form by a hollow drill before the blade-milling operation, or they may be in the form shown, being turned on two sides 24, 26 during the machining of the blade-ends, and milled on the other two sides 16, 18 during the blade-milling operation. The blades may taper towards their free ends. The ring may be drilled for cylindrical pins 14, or perforated by a punch when the pins are as shown, the punch being formed by turning an annular projection and dividing this by milling to form pins for punching the holes.
Patent GB-335561-A (GB)
Title: Head for angle and common rulers
IPC: G01B3/06
Filed: 1929-03-18
Abstract: 335,561. Penkala Tvornice D. D. Jan. 31, 1929, [Convention date]. Void [Published under Sect. 91 of the Acts]. Tee-squares. - Consists of a head to which a ruler can be adjustably and removably connected to form a teesquare. In one form, Fig. 1, the head 1 is formed with a slot 7 through which the ruler is passed, the latter being clamped by a member 8 operated by a screw 5. In another form, Fig. 4, the head comprises members 2, 3 the distance between which can be adjusted by screws 5 surrounded by springs 9. In another form a wedge-shaped clamping member is employed.
Patent GB-1027530-A (GB)
Title: Gas turbine cycle improvement
IPC: F02C7/12
Filed: 1964-03-02
Abstract: 1,027,530. Gas turbine engines. V. DAVIDOVIC. March 2, 1964, No. 8716/64. Heading F1G. The invention relates to a gas turbine engine which comprises a liquid coolant or fuel container disposed between the compressor and flame tube of the engine, and means for causing air from the compressor to flow adjacent the container whereby the air is cooled, the air being then caused to flow adjacent the turbine casing which is thereby cooled. The engine shown comprises a centrifugal air compressor 1, combustion equipment B, a first turbine 6 which is connected to drive the compressor through shaft 2 and a second turbine 15 which is arranged to drive a useful load through shaft 17. Air from the compressor passes into a chamber C from which it passes into the single tubular flame tube 23 at the upstream end E thereof. A portion of air from the compressor passes through the hollow turbine inlet nozzle guide blades 8 and across the turbine casing before entering the flame tube. Secondary air enters the flame tube through the inlets I in the wall thereof. The combustion gases discharge from the flame tube through an outlet portion which terminates in an annular duct 24 across which the turbine inlet nozzle guide blades 8 extend. The gases act first on the blades 7 of the compressor drive turbine and are then directed by stator blades 9 on to the rotor blades 10 of the power turbine 15, the gases finally discharging through outlet duct F which may be in the form of a jet propulsion nozzle. A space A defined between the inner wall 12 of the plenum chamber C and the sleeve 11 surrounding the turbine-compressor shaft 2 is adapted to contain liquid coolant or fuel. The wall 24 of the flame tube discharge duct is formed with a plurality of small holes K, Fig. 6 (not shown) so as to maintain uniformity of pressures within the plenum chamber C and the interior of the flame tube. The turbine casing is provided with fins on its outer surface, Fig. 3 (not shown) to assist heat transfer. Gearing 16, 16<SP>1</SP> and electro-magnetic clutch 19 are disposed between the turbines 6 and 15 whereby the compressor drive turbine 6 may be connected to drive the output shaft 17. The turbine exhaust gases may be utilised to preheat the air being supplied to the flame tube B, Fig. 4 (not shown). The air preheater L receives turbine exhaust gases through inlet F<SP>1</SP> and discharges them through outlet O. Air from the plenum chamber C enters the preheater through inlets M, 32, 30 and the heated air passes into the flame tube through passages 29 and N. The gases may be reheated between the turbines 6 and 15 Fig. 5, not shown, wherein oil from the space A flows radially outwardly through the turbine motor 6 and blades 7<SP>1</SP> and then discharges axially through outlets 34 in the blades into the interstage ducting 18.