baber/WOPTO huggingface dataset:
Patent GB-456670-A (GB)
Title: An improved plough
IPC: A01B3/18
Filed: 1935-05-30
Abstract: 456,670. Implements for working land. CHAMPION, F., 2, Pool Street, Bodmin, Cornwall. May 30, 1935, No. 15703. [Class 6 (i)] A tractor plough which throws the furrow slices all one way comprises a frame which is T-shaped in plan with the cross-piece of the T transverse to the line of travel and at the front end of the implement, right and left-hand ploughs carried by beams connected to a tubular sleeve member on the longitudinal part of the T-shaped frame, eccentric mechanism automatically operated from one of two main travelling wheels, on movement of a handactuated rod, for reversing the ploughs, and similar eccentric mechanism similarly operated from the other main wheel, on movement of another hand-actuated rod, for lifting and lowering the ploughs. The longitudinal sleeve member 2 is mounted on a non-rotary shaft 6 connecting a tranverse frame 7, supported on main wheels A1, B1, with an upright 4 carrying a rear castor wheel 3. Right-hand ploughs and left-hand ploughs are mounted on opposite sides of beams 19, 20 pivoted at the rear on arms 13 projecting from the sleeve 2 and connected together near the front by arms 14, 15 projecting from guide pieces through slots in which the sleeve 2 passes. The beams 19, 20 are adjustable laterally by screwing up nuts 22 on the arms 13, 14, 15. The ploughs are reversed by turning the sleeve 2 through 180‹ by an eccentric 26 driven by a ratchet 24 from the wheel B1 and connected by lever-and-link mechanism 37, 28, 30 to a toothed tube 1 movable along a fixed shaft 5 and gearing with a pinion 11 on the sleeve 2. The distance traversed by the tube 1 is regulated by means of nuts 50 on a bell-crank 28 forming part of the operating mechanism. A driving pawl is thrown into engagement with the ratchet 24 by moving a rod 35 connected to a lever carrying a stop which normally prevents rotation of a spring-controlled member connected with the pawl. The ploughs are raised or lowered by similar ratchet and eccentric mechanism connected with the other main wheel A1 and arranged to rock a lever 47 connected by a link 41 to a loop through which pass projections from the slotted piece carrying the arms 15. Set-screws 49 limit the upward and downward movements. A forked draw-bar 60 is pivoted freely on a cross-member 63 keyed on the shaft 6 and connected to stays 61, 62 bolted to the frame 7. According to the Provisional Specification, the ploughs are lifted and reversed by turning the sleeve carrying them through 90‹ at a time by eccentrics actuated by the two road wheels and operating together.
Patent GB-1083052-A (GB)
Title: False-twisting of textile yarns
IPC: D02G1/08
Filed: 1966-04-07
Abstract: 1,083,052. False twisting yarns. HEBERLEIN & CO. A.G. April 7, 1966 [May 6, l965], No. 15718/66. Headings DID and D1F. Yarn which is at least partially thermoplastic s flake-twisted by being passed between moving surfaces, e.g. of rubber discs 1, 2, there being provided magnetic means, to press the surfaces into contact with the yarn. As shown discs 1, 2 are of non-metallic permanently magnetic material (e.g. rubber into which powdered Ba0.6Fe2O3 has been incorporated) and are magnetised so that the overlapping portions of the discs are attracted to each other and engage the yarn. In Fig. 2, not shown, disc (7) is non- magnetic but disc (2) is urged into engagement therewith by a similar magnetised disc (8) mounted above disc (2). In Fig. 3, not shown, disc 1 is replaced by an annular magnet set in support 3 and covered by a thin non- magnetised rubber disc. In Fig. 4, not shown, the lower disc comprises a non-flexible, non- magnetic thick rubber disc and the magnetised upper disc is drawn into engagement therewith by a magnet (11) placed below the overlapping portions of the discs. Instead of discs 2 being of permanently magnetic material it may be made up of rubber and iron filings or of rubber with a sheet of iron therein. In Fig. 5, not shown, the yarn passes between a pair of magnetised discs (12, 13) the plane of each disc making an angle of 30 to 45 to the yarn. In Figs. 6 and 7, not shown, the yarn passes between moving belts (16, 17) crossing at approximately right angles to each other. Upper belt (17) contains an intermediate layer of iron powder, sheet iron or iron wire and is urged into engagement with the lower belt by a horseshoe or electro-magnet beneath the cross-over point. Examples are given of types of yarns suitable to be false twisted by the above method.
Patent GB-247448-A (GB)
Title: Improvements in or relating to junction boxes
IPC: H02G3/20
Filed: 1925-06-18
Abstract: 247,448. Couzy, A. H. June 18, 1925. Junction boxes.-A metal junction box 1 has an opening in its base, the opening being surrounded by a flange 16, the lower end of which is flush with the surface of ceiling 18, and the opening being hidden by a rosette 19 pulled towards the ceiling by a spring 11. A lamp is suspended from a ring 21 on the rosette 19. The bosses 4, 5 for the conductors 9 are at such a height that they rest on the ceiling boards 8 and thereby support the box, whereas the bosses 6 for conduits which run at right angles to the conduits 9 are situated lower than the bosses 4, 5, thereby allowing the corresponding conduits to lie between the boards 8. The top 3 of the box supports the upper end of the spring 11 and a surrounding tube 10. The inside of the box is provided with a porcelain ring carrying contact strips to which the various wires are connected. If the installation is to be extended at any time, the cover 3 is removed and replaced by one having additional lead-in bosses.
Patent GB-593668-A (GB)
Title: Improvements relating to metallic tea-pots, coffee pots and other like metallic potsor jugs
IPC: A47J45/08
Filed: 1945-06-21
Abstract: 593,668. Handles for teapots &c. ELKING- TON & CO., Ltd., and DUCKHOUSE, C. A. June 21, 1945, No. 15811. [Class 66] A handle 7 with sockets 7a, 7b is attached to a metallic teapot 5 by internally threaded, heatinsulating ferrules 9 which receive threaded screw-pins 8 secured to the teapot and fit tightly in sockets 6, 6a on the teapot. Each ferrule may have a medial outer flange 9a against which the ends of the sockets abut. The parts within the sockets are fixed by pins 10.
Patent GB-252096-A (GB)
Title: Improvements in the attachment of cycle mud-guards to supporting stays
IPC: B62J15/02
Filed: 1925-06-19
Abstract: 252,096. Wasdell, E. C. June 19, 1925. Mud-guards.-The usual U-shaped stays d are secured to cycle mud-guards by means of a bracket c<3> having side members c<2> which are passed through slits in the mud-guard blade a and are formed with gaps c<4> having restricted entrances, flattened portions d<3> of the stay d being introduced into the gaps and the larger crosssectional portions of the stay subsequently slidden into engagement therewith. The dimensions of the parts are such that the larger cross-sectional portions of the stay are frictionally held in the gaps and the bracket is held tightly against the exterior surface of the mud-guard blade. The bracket c' may comprise a U-shaped member,. and the stay d may be shaped at d<4> to accommodate the beaded edges a<4> of the mud-guard. The Provisional Specification describes the gapped side members of the bracket as being resilient,. the stay being sprung into the gaps.
Patent GB-950446-A (GB)
Title: Process for the production of siliceous pigments
IPC: D21H17/68
Filed: 1960-05-05
Abstract: A process for the production of a siliceous pigment comprises rapidly acidifying an aqueous solution of an alkali metal silicate with an acid to provide a stable, silicate-ion free solution, distributing rapidly throughout the solution sufficient water-soluble metal salt and an alkali metal silicate to cause precipitation of a siliceous pigment. Acidification may be effected with hydrochloric acid nitric acid, nitreous acid, sulphuric acid, carbonic acid, phosphoric acid, sulphurous acid and organic acids such as acetic, formic and chloracetic acids and the water soluble metal salt is preferably calcium chloride NaCl ZnCl2, NaNO3, Ca(NO3)2, CaBr2, NaI, Na2SO4, NaAlO2 and KAlO2. Na2SiO3 is specified as alkali metal silicate. Separation of the pigment from its mother liquor may be facilitated by use of quaternary ammonium salts, high molecular weight amines, and aluminium salts e.g. AlCl3 and Al2(Sl4)3. Examples are given.
Patent GB-517719-A (GB)
Title: Improvements in thermally actuated electrical cut-outs
IPC: H01H71/20
Filed: 1939-05-26
Abstract: 517,719. Thermal switches, WINN. W. C. May 26, 1939, No. 15893/38. [Class 38 (v)] A cut-out comprises a container 1 filled with fusible material 5, such as parafinwax, supporting conductive material 4 such as mercury, or a metal contact block, so as to complete a circuit through two leads 3, in an insulating stopper 2. A heating coil 19 surrounds the container, operation taking place if the -current exceeds a predetermined maximum.
Patent GB-1035134-A (GB)
Title: Metal heat insulating structural members
Inventor: BECK AINSLIE ROGERS
IPC: G21C11/08
Filed: 1964-04-16
Abstract: 1,035,134. Reactor shields. NUCLEAR POWER PLANT CO. Ltd., and A.E.I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., (trading as NUCLEAR POWER GROUP). Jan. 26, 1965 [April 16, 1964], No. 15898/64. Heading G6C. In a gas-cooled nuclear reactor, the core and heat exchanger are mounted together within a concrete pressure vessel. A shield, separating the core and exchanger, is supported on blocks which thermally insulate the shield from the vessel base. Rollers between the blocks and the shield allow differential dimension charges. The support blocks are of welded steel sheet and have an open structure of vertical and horizontal surfaces, the spaces between which are filled with stainless steel foil.
Patent GB-333933-A (GB)
Title: Improvements in colour photography
IPC: G03C1/83
Filed: 1929-05-23
Abstract: 333,933. Kelly, W. van D. May 23, 1929. Drawings to Specification. Plates and films.-The surface of an emulsion is coloured with colouring matter comprising a combination of benzidine and its homologues with the sulphonic acids of naphthol or naphthylamine, e.g. Congo red, benzo purpurine or other " direct " dyes. The dye has a strong tendency to remain on the surface of the emulsion, is not affected by the developing agents, but may be removed by sodium hydrosulphite. Emulsions surface-coloured as above are particularly useful in colour photography when exposing two plates or films with their sensitive surfaces in contact.
Patent GB-901005-A (GB)
Title: Improvements in or relating to a parabolic reflector antenna for waves polarized in two directions
IPC: H01Q19/19
Filed: 1960-05-05
Abstract: 901,005. Aerials. TESLA NARODNI PODNIK. May 5, 1960 [May 18, 1959], No. 15936/60. Class 40 (7). An aerial includes first and second confocal parabolic reflectors, the second reflector being mounted between the apex of the first reflector and the common focus. The second reflector is mounted on the end of a dielectric waveguide 3, which is fitted with a horn radiator 2, this waveguide projecting through the first reflector 1. To enable the aerial to utilize waves polarized in two directions the reflectors are paraboloidal, the horn radiator is conical and the waveguide is circular in cross-section.
Patent GB-798204-A (GB)
Title: Improvements in or relating to processes for manufacturing storage tube targets
IPC: H01J29/39
Filed: 1956-05-23
Abstract: 798,204. Photo-elctric devices. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 23, 1956 [June 8, 1955], No. 15937/56. Drawings to Specification. Class 37. [Also in Group XL (a)] The target of a storage tube comprising a thin metallic film supported on a fine mesh metallic grid is made by coating one face of the grid with a thin film of collodion, including a very slight proportion of impurities capable of converting a given insulating material into a semi-conductor, coating by vacuum evaporation the face of that film adjacent the grid with a thin film of the insulating material, applying the metallic film to the other face of the collodion film and baking the whole structure at about 400 C. to destroy the collodion while maintaining the impurities. The metallic film may be aluminium, the insulating material zinc sulphide, magnesium fluoride or silicon monoxide and the impurities may be magnesium, sulphur, zinc oxide, soluble zinc salts or zinc naphthenate. The impurities are preferably present in a proportion of about 1 in 10,000.
Patent GB-980493-A (GB)
Title: Improvements in or relating to looms
IPC: D03D47/00
Filed: 1961-05-03
Abstract: 980,493. Shuttleless looms. SDRUZENI PODNIKU TEXTILNIHO SThOJIRENSTVI. May 3, 1961 [May 4, 1960], No. 15955/61. Heading D1E. Two or more weft inserters in the form of short flexible tapes 1 circulate in a closed path taking them through the shed, where they run in a comb-like race 16,16a, round drive wheels at each end of the slay, and along a return guide under the loom. The drive wheels have pegs engaging holes in the tapes. In the race 16,16a and in the return guide, the tapes are propelled by rapidly oscillating levers 17, the tips of which traverse oblique grooves in blocks fixed on the tapes; alternate grooves are oppositely directed so that the levers 17 impart movement to the tape on both strokes of their oscillations.
Patent GB-552958-A (GB)
Title: Improvements in or relating to racquet presses
IPC: A63B60/44
Filed: 1941-12-11
Abstract: 552,958. Racket presses. DUSSEK, L. A., and GRAY & SONS, Ltd., H. J. Dec. 11, 1941, No. 15969. [Class 132 (ii)] A press for a tennis or like racket comprises two rigid unlined plates 10, 12 fitting within the racket head and clamped upon the strings 20 by one or more detachable resilient metal clamps, clips or fasteners 22. The inner ends of the fasteners may enter notches in the clamping plates to prevent the fasteners from slipping. The fasteners may be provided with pivoted handles 34, Fig. 4, which may be turned over to the positions shown in broken lines to facilitate release of the fastener.
Patent GB-659871-A (GB)
Title: Improvements in pillows
IPC: A47G9/10
Filed: 1949-06-15
Abstract: 659,871. Pillows. UNSTEAD, S. A. June 15, 1949, No. 13984. [Class 52 (iv)] A pillow constructed of a series of helical springs 1 enclosed in individual pockets or cells 2 which are in turn encased in a rectangular envelope 3 surrounded by layers of cotton linters or wool filling 5 has each pocket individually fastened to the envelope 3 by stitches 4, the unit thus constituted being enclosed in the usual ticking 6.
Patent GB-117198-A (GB)
Title: Improvements in Writing Pads.
IPC: B42D5/00
Filed: 1917-11-02
Abstract: 117,198. Norman & Son, T., and Norman, H. Nov. 2, 1917. Writing-pads.-A writing-pad comprises a foldable outer cover A, A<1>, the inner side of one part carrying a blotting-sheet, and a number of double sheets of letter paper D arranged with their folded edges D<1> arranged alternately to the right and to the left. As a result of this arrangement of the sheets, the pad may be folded without distortion.
Patent GB-891135-A (GB)
Title: Improvements relating to the discharge of material from container
Inventor: WORSLEY WILFRID HARRY
IPC: B65D88/66
Filed: 1959-05-11
Abstract: 891,135. Facilitating flow of material in a hopper. SIMON-CARVES Ltd. May 2, 1960 [May 11, 1959], No. 16022/59. Class 78 (1). Coal in hopper 21 is agitated to avoid " bridging " by an agitator 100 which carries pivoted arms 42. The agitator is universally jointed at 46 to piston 32 of reciprocating fluid cylinder 31. As the agitator reciprocates, the arms 42 on the downstroke engage stops 43, and in this position the arms dislodge material within the hopper. Two such agitators may be employed. The material is discharged at 24 from the hopper by reciprocating pusher 63. A flow-sensitive device may be installed in the hopper outlet so as to start the reciprocation of the agitator when the flow falls below a predetermined value.
Patent GB-859132-A (GB)
Title: Method of manufacturing a half of a section of a corset or like garment
Inventor: ECKMANN HANS
IPC: A41C5/00
Filed: 1958-05-19
Abstract: 859,132. Corsets &c. ECKMANN CORSETFABRIEK N.V., H. May 19, 1958, No. 16031/58. Class 141 The front of a girdle &c. consists of two halfsections each made from a substantially rectangular piece of elastic material 4-5-6. .9, Fig. 1, which is first stitched to provide a longitudinal dart 12-13-14 tapering towards each end and is then folded along the transverse line 5<SP>1</SP>-8<SP>1</SP> as shown in Fig. 2 so that the part 5<SP>1</SP>-6-9<SP>11</SP>-8<SP>1</SP> is of double thickness and has two oblique darts 13<SP>11</SP>12<SP>11</SP>, 13-14. The elastic material comprises parallel rubber threads extending in the longitudinal direction of the rectangle and connected by thin yarn. The rear and side sections of the girdle may be similarly constructed and each half-section may have more than one dart 12-13-14. The invention is stated to be applicable to corsets, corselettes, panties, brassieres and bathing suits.
Patent GB-553511-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B65H23/18
Filed: 1941-12-12
Abstract: 553,511. Master control of several A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 12, 1941, No. 16036. Convention date, Dec. 17, 1940. [Class 38 (iii)] Motors 20, 21 used for winding and unwinding material that is being processed, e.g. passed through a dye vat, are controlled so as to obtain constant tension on the material. Both motors 20, 21, and also a motor 19 driving nip rollers between which the material passes, are 3-phase induction motors and all are reversible by means of a cam controller 22. The winding motor has associated with its wound rotor a star-connected reactance network, each phase comprising three parallel branches of resistance 26a, series resistance and. inductance 26b, and series condenser inductance and resistance 26. The reactance is adjusted so that the output of the motor is constant at all operating speeds and hence the tension of the strip. being wound remains constant. The unwinding motor is run as a generator of constant output either by exciting one phase of the stator with D.C. from a rectifier 33 and shorting the slip rings, or else exciting the stator with 3-phase A.C. to produce a field rotating contrary to the rotation of the rotor and connecting the slip rings 'to a network similar to the network 26 &c. The back tension on the material is thereby kept constant. Running is under control of buttons 35, 39. A delay drop out relay 37 with make before break contacts is normally energized over a rectifier 47. The controller 22 is set for desired direction and button 35 is depressed. Contactor 36 picks up, completes the star-point of network branches 26a, de-energises relay 37, locks itself up over stop button 39, energizes a relay 40, prepares the stator circuit of motor 19 through starting resistances 45 a, b, c and energizes contactor 44 which completes the starter circuit of the motor 19 and of motor 20 or 21 whichever is the winding motor. The latter motor starts with increased torque as part of the resistance-inductance branches of the network is shorted by contactor 38. After an interval, relay 37 drops and energizes contactor 38 which lifts, maintains contactor 44 independently of contactor 36, removes the short from the network, shorts the resistances 45 a, b, c and energizes the rectifier 33. All motors are now running normally. Opening of stop button 39 causes contactor 36 to drop out. This opens the star-point of the network resistances 26a so that the winding motor operates with reduced torque, re-energizes relay 37 which lifts immediately, de-energizes relay 40 which drops after a delay, opens the stator circuit of motor 19 which coasts to rest and'shorts a resistance 53 so that the unwinding motor exerts an increased drag. After a delay relay 40 drops out and de-energizes contactor 38 which drops and is immediately followed by contactor 44, whereupon the system is in its initial state ready for operation in the opposite direction upon reversal of the controller 22.
Patent GB-1307609-A (GB)
Title: Holography
IPC: G06V10/88
Filed: 1970-04-06
Abstract: 1307609 Holography AMERICAN OPTICAL CORP 6 April 1970 [4 April 1969] 16116/70 Heading G2J In a system for recording holograms from which images can be obtained free from speckle patterns and diffraction effects, laser light 11, Fig. 3 is applied to a hologram 41 of a plurality of spaced light sources, thus producing a plurality of spaced, mutually coherent point sources 43 which illuminate an object 17, a hologram 19 being formed with the aid of a reference beam 23, 25 focused by a lens 27 to a point 29. The reference beam is used to obtain reconstructions 52, 53, Fig.4, of the sources 43 and of the object 17 from the hologram 51, these reconstructions being imaged by a lens 54 at 55, 58; the image 58 is formed by light from each point image in turn from the plurality 55, corresponding "light valves" in a mask 60 being made transparent in rapid sequence so that 58 is viewed as a composite image which closely approaches the appearance of an object illuminated by an incoherent extended source. An embodiment is described wherein the system is adapted for use with a microscope Figs. 5, 6, (not shown). The hologram 41 may be replaced by any suitable optical arrangement, e.g. a pair of perpendicular diffraction gratings or an array of small lenses; a ground glass screen may be used Figs.7-9, (not shown), when the corresponding mask (60) comprises an apertured plate rotatable about the optic axis of lens (54).
Patent GB-717371-A (GB)
Title: Improvements in and relating to temperature control of gas turbine engines
Inventor: STURGEON HENRY GEORGE
IPC: F01D17/08
Filed: 1952-06-26
Abstract: 717,371. Automatic temperature control systems. ULTRA ELECTRIC, Ltd. June 9, 1953 [June 26, 1952], No, 16120/52. Class 38(4) As shown in a system of a thermocouple b responsive to the temperature of a gas turbine engine is applied in opposition to a reference voltage, obtained from a bridge circuit a supplied from a battery c to the input of an amplifier d and the output of the amplifier controls an electromagnetically operated engine fuel valve e to maintain engine temperature constant, a voltage dependent on acceleration obtained through a transformer h from a tachometer generator f is applied to the bridge circuit so that the temperature is raised temporarily during starting. A rectifier i eliminates a similar effect during deceleration. Application of the temperature and acceleration dependent signals directly to a magnetic amplifier is referred to.
Patent GB-651916-A (GB)
Title: Improvements in filter bags for suction cleaners
IPC: A47L9/12
Filed: 1948-06-15
Abstract: 651,916. Air filters. TISSUE PAPERS, Ltd., and SCHECHNER, P. June 15, 1948, No. 16124. [Class 8(ii)] A suction cleaner filter bag comprises an impervious tubular envelope 16, Fig. 2, having one end as an inlet and the other as outlet for filtered air and an edge filter 17 consisting of a plug of spirally wound or zig-zagged crepe paper strip creped transversely to the length of the strip located in the envelope so as to leave a dust collecting space between the inlet end and the plug 17. The envelope 16 which may be of transparent plastic material is sealed to the periphery of a wood or cardboard ring 15 in turn secured to a cardboard inlet tube 14. In a modification the ring 15 is dispensed with and the margin of the inlet end of the envelope 16 is folded over to form a reinforcing ring of several layers to fit over an inlet tube. In a further modification the envelope 16 has a radial flange formed by a cardboard ring to which the envelope is sealed. Alternatively the margin of the open end of the envelope is folded in several layers to form a reinforcing ring which is clamped between a flange 19, Fig. 8, and an end cap 20 of the suction cleaner.