baber/WOPTO huggingface dataset:
Patent GB-705027-A (GB)
Title: Improvements in or relating to vacuum pumping apparatus
Inventor: BARRETT ARTHUR STEPHEN DENNIS
IPC: F04F9/04
Filed: 1951-09-17
Abstract: 705,027. Oil diffusion pumps. EDWARDS & CO. (LONDON), Ltd., W. Sept. 4, 1952 [Sept. 17, 1951], No. 21804/51. Class 71. The working fluid in the boiler 3 of an oil diffusion pump 1 provides lubricating and sealing oil for an associated mechanical backing pump 4. In operation oil from a common reservoir 5 is drawn slowly up a pipe 7 and through a control valve 9 into an overflow trough 8 in the backing pump connection 6 and thence down a pipe 10 to the boiler 3 to replace any oil lost from the pump 1. Such lost oil is returned to the pump 4 and through a valve 11 to the reservoir 5. In a modification using a two-stake backing pump the oil supply for the boiler instead of being located within the backing pump connection comprises a sealed container supplied from an end bearing of the backing pump and having an overflow to each stage of the backing pump.
Patent GB-1101037-A (GB)
Title: Improvements in or relating to internal reflection devices
Inventor: BERZ FEODORA
IPC: G01N21/55
Filed: 1965-05-24
Abstract: 1,101,037. Optical apparatus. MULLARD Ltd. March 31, 1966 [May 24, 1965], No. 21866/65. Heading G2J. An optical element 2, Fig. 2, of refractive index n 1 , particularly for use in attenuated total reflection (A. T. R.) spectroscopy, is provided with a thin layer 6 of refractive index n 3  and thickness d with an outer face 7 adjacent a medium 8 of refractive index n 2  where n 2  < n 3  and n 2  < n 1 , the arrangement being such that when a beam 1 of radiation of free-space wavelength # is directed from a source 9 into the element 2, the layer 6 produces a standing wave of light of great intensity. The material to be investigated by A. T. R. may form the layer 6, the medium 8, or be provided in the medium 8 as a thin film on surface 7. The element 2 may be of silicon (n = 3À5) or germanium (n 1  = 4) and layer 6 of silica (n 3  = 1À45). As shown the beam is incident on the interface 5 at an angle e 1  where n 3  > n 1  sin # 1  > n 2  and refracted into the layer 6 with an angle of refraction # 2  where:- where k is an arbitrary integer equal to 0, 1, 2, ..... (# r ) 6 <SP>7</SP> is the phase change on reflection in the layer 6 at the surface 7 and (# r ) 2 <SP>5</SP> is that in the element 2 at the interface 5, the source 9 being such that the beam is coherent over a length l in the plane of incidence on the interface 5 where r 1  being the reflection coefficient for immediate reflection of the radiation travelling in the element 2 at the interface 5 so that in operation the electric field vector of the radiation at the face 7 is greater than it would have been if face 7 coincided with interface 5 except insofar as the vector at face 7 is reduced by absorbent material, if any, present within layer 6.
Patent GB-401067-A (GB)
Title: Improvements in protective arrangements for electrical machines and transformers
IPC: H02H3/28
Filed: 1932-08-04
Abstract: 401,067. Protective cut-out systems. ROSS, T. W., 10, Broadoaks Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Aug. 4, 1932, No. 21924. [Class 38 (v).] An arrangement for protecting transformer or machine windings, the neutral point of which is earthed, against earth leakage comprises an induction relay having an operating and a field magnet, each of which has a winding or windings whereby its excitation is representative in part of the current in the earth connection of the neutral point, and in part of the summation of the line currents in the phase windings of the machine or transformer. The invention is an adaptation of the " Translay " arrangement of Specification 298,994, [Class 38 (v), Electric switches &c.], to the protection of machines and transformers against earth leakage. The star-point 5 is earthed at 6 and the winding 14 of a transformer in the earth connection energizes a winding 19 on the field magnet of an induction relay, the winding 19 acting as the primary of a transformer the secondary 20 of which is in series with a winding 21 on the operating magnet. Windings 20, 21 are connected to the secondary 22 of a transformer 23, the primary 24 of which is energized from transformer windings 11..13. When there is an alternative source capable of feeding an earth fault in the machine or transformer, the winding 20 is energized from transformers 11..13 by an e.m.f.whichis in phase with that induced in it by winding 19, so as to cause operation of the relay. With no alternative source, the winding 19 induces an e.m.f. in winding 20 which sends a current through the winding 21 and the relay operates. With an earth fault beyond the machine, the e.m.f. induced in 20 by 19 is substantially equal and opposite to that set up by the transformers 11..13, so that no current flows through winding 21 and the relay is not operated. A bias against operation is provided by the short-circuited winding 25 and/or by arranging that normally the effect of winding 22 on winding 20 preponderates over the effect induced by winding 19. The current transformers 11..14, 23, may have closed or open magnetic circuits.
Patent GB-1147466-A (GB)
Title: Method and apparatus for producing bags from tubular film
IPC: B31B23/00
Filed: 1966-05-17
Abstract: 1,147,466. Cutting and welding plastics tubing to form bags; seaming non-metallic sheet material ; cutting webs. KUREHA KAGAKU K.K. 17 May, 1966 [17 May, 1965; 1Dec., 1965; 2 Dec., 1965], No. 21941/66. Headings B4B, B5D and B5K. Flattened tubular film is transversely cut into bag lengths by a rotary blade 38 in an area held between welding jaws 32, 40 and a clamp 31, 37: the jaws then weld the film and an air blast cools it. High frequency current to the welding jaws rnay be applied before the cutting, but is not sufficient to effect welding before the cut is complete. The rotary knife is moved axially into and from its cutting position: in the embodiment illustrated its cuts at each fourth revolution. The web is fed from a roll 5, mounted on an arm 7 so that it rests by gravity on a driven roller 8, and then passes through pinch rolls 9, 9a, driven intermittently through a ratchet (13) (Fig. 7a, not shown) from an adjustable crank (15). The feed may be controlled by a clutch operated by a photo-cell detecting markings on the tubing. The completed bags are fed by pinch rollers 41, 42 to conveyers (57), (58) (Fig. 7a).
Patent GB-295355-A (GB)
Title: Improvements in wheel rims
IPC: B60C29/06
Filed: 1928-07-30
Abstract: 295,355. Michelin et Cie. Aug. 10, 1927, [Convention date]. Tyre attachments to rims.-In a wheel rim of the well-base type, the recess or well 1, which may be centrally or otherwise arranged and may extend wholly or partially around the rim, has a portion 2 of reduced width preferably arranged adjacent the valve-hole. The reduced portion may be formed by indenting the metal of the rim, as in Fig. 1, or by separate filling-pieces, as in Fig. 2. Specifications 222,768 and 279,015 are referred to.
Patent GB-485134-A (GB)
Title: Improvements in means for facilitating the starting of internal combustion engines for motor vehicles using a fuel injection pump
IPC: F01L13/00
Filed: 1937-08-11
Abstract: 485,134. Starting. AUSTIN MOTOR CO., Ltd., and COLELL, R. F. Aug. 11, 1937, No. 22063. [Classes 7 (iii) and 7 (v)] Relates to means for facilitating the starting of motor-vehicle engines of the type in which fuel is injected by a pump and the speed or power is controlled by a hand lever or pedal R through the medium of a diaphragm C or piston actuating the control rod or rack B of the fuel pump, the diaphragm or piston being controlled by the depression in the induction system, which is varied by a throttle valve actuated by the lever or pedal R. In order to allow the rack to be moved further in a direction to increase the fuel supply for starting, a stop F for limiting the movement of the rack B is displaced by the movement of the lever or pedal R into its idling position. As shown, the stop F is a set screw in the end of a lever G pivoted at g and bearing against a plunger H acted on by a spring K which is stronger than the spring E bearing against the diaphragm C. An arm M on the lever G is connected by a slotted link N to an arm Q on the throttle shaft r carried by the pedal R. A spring S stronger than the spring K tends to hold the pedal R in the idling position determined by a stop T, and in this position of the pedal, the lever G is moved back to allow the spring E to move the rack B to the left beyond its normal full-load position. In a modification, the shaft r acts on the lever G by means of a cam instead of the arm Q and link N.
Patent GB-331116-A (GB)
Title: Improvements in or relating to stands for cycles and like vehicles
IPC: B62H1/00
Filed: 1929-07-18
Abstract: 331,116. Gander, A. June 1, 1929, [Convention date]. Supports attached to cycles; luggagecarriers; seat attachments. - A combined stand and luggagecarrier or seat for cvcles &c. comprises a pair of arms 3a, pivotally mounted on the ends of the rear wheel axle 3, and adjustably connected ,as by scraws 3<b>, to diverging arms 4, 4a supporting a platform or grid 4<c>, which is adapted either to engage the ground, or to form a luggage support or seat when the device is turned up to the position shown in dotted lines, the arms 3a being secured on the axle 3 by locknuts &c. which enable the device to be swung angularly or removed without loosening the vehicle wheel. The grid is removably attached to the arms 4, 4a by screws 5, and may be recessed to receive a cushion. The grid is provided with a pivoted hook 8 adapted to engage a ring on a clip 7 secured to the rear fork of thecycle.
Patent GB-1104383-A (GB)
Title: Piezoelectric ceramic resonator devices
IPC: H03H9/54
Filed: 1965-05-25
Abstract: 1,104,383. Piezoelectric resonators. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 25 May, 1965 [30 May, 1964; 4 June, 1964; 14 July, 1964; 27 Oct., 1964; 28 Oct., 1964], No. 22230/65. Heading H1E. A piezo-electric resonator comprises a disc of ceramic ferroelectric material polarized parallel to its planar faces and provided with electrodes formed by electroless deposition of copper followed by gold or silver plating effected by chemical displacement. The resonator is intended for operation in the thickness-shear mode and, in order to eliminate overtones and coupling to sub-resonant modes, the ratio of diameter to thickness is chosen according to experimental and theoretical data given in the Specification. In particular, the ratio D/T must lie between 7 and 15. The ceramic material may consist of 99 wt. per cent of Pb(Mg 1/3 Nb 2/3 ) 0À4375 Ti 0À4375 Zr 0À125 O 3  + 1 wt. per cent MnO 2 . The disc is cut with a diamond cutter from a previously polarized piece of this material and the cut surfaces are polished. Electrode material is deposited all over the surfaces of the disc and etched away with nitric acid from those areas where it is not wanted. The characteristics of the disc are adjusted by grinding its periphery. The resonator may be used as a sound-trap in a T.V. circuit, a suitable mounting being shown in Fig. 6. The disc 11 is held between resilient, coiled leads 13, 13<SP>1</SP> within a conductive cylindrical capsule 14 lined with insulating, acoustically-damping material 15. The capsule is fitted with an insulative closure 17. A modification is described in which both leads pass through the closure.
Patent GB-892550-A (GB)
Title: Improvements in or relating to the degasification of molten metals
IPC: C21C7/10
Filed: 1958-07-11
Abstract: 892,550. Degasifying metals. HERAEUS G.m.b.H., W. C. July 11, 1958 [July 26, 1957], No. 22323/58. Class 72. A method of degasifying molten metals comprises placing the molten metal in a ladle in a vacuum chamber and introducing a gas below the surface of the metal while continuing to evacuate the chamber. As shown, a ladle 2 containing the metal is placed in a vacuum chamber 3, the pressure reduced, and a pipe 8, led through a gland 7 in a cover 4, adjusted to penetrate below the surface of the metal. A gas, which may be an inert gas or the vapour of a substance normally solid or liquid, is passed through the pipe and bubbled through the metal while a vacuum is maintained in the chamber. Specification 739,652 is referred to.
Patent GB-242576-A (GB)
Title: Improvements in ophthalmic lenses
IPC: C03C17/00
Filed: 1925-09-08
Abstract: 242,576. Tillyer, E. D. Sept. 8, 1925. Hidden printing.-In order to provide a permanent mark on a spectacle lens, not removable by ordinary cleaning and invisible under ordinary conditions, phosphoric acid is applied to the polished surface by a pen, brush, stamp &c., and permitted to remain for some time. The acid affects the physical and chemical condition of the glass surface, without affecting the polish, so that after being washed off, no effect is visible. Slight moisture, such as caused by breathing on the glass, will cause the marks to be evident, by reason of the difference in size of the condensed globules on the treated and untreated portions, the marks disappearing when the lens is dry. The action of the phosphoric acid may be hastened by heating.
Patent GB-830986-A (GB)
Title: A conditioning method for improving the dyeability of wet spun and stretched fibers from polymers and copolymers of acrylonitrile
IPC: D06P3/70
Filed: 1957-07-16
Abstract: Wet-spun and stretched fibres from polymers and copolymers of acrylonitrile containing at least 85% by weight of acrylonitrile in the polymer molecule are subjected while in aquagel form to steam under an absolute pressure of at least 20 pounds per square inch for 0.5 seconds to 0.5 hours and then dried, whereby the dyeability of the fibres is improved.  Dyeassisting vinyl lactam polymers, e.g. polyvinylpyrrolidone or polyvinylcaprolactam, may be incorporated in the composition from which the fibres are formed or in the fibres after extrusion while in the aquagel state.  The fibres may be subjected to the steam treatment while in a relaxed, completely free-to-shrink condition, while under positive tension or while in an incompletely free-to-shrink condition, and may be dried in either a relaxed condition or under tension at temperatures between room temperature and about 160 DEG  C.  The fibres may be dyed with acetate dyestuffs and with acid, direct and vat dyes.
Patent GB-361431-A (GB)
Title: A feeder and former to be used with sewing, riveting and similar machines
IPC: D05B27/02
Filed: 1930-07-26
Abstract: 361,431. Sewing, riveting, and stapling. ROGERSON, S., 363, Collyhurst Road, Manchester. July 26, 1930, No. 22555. [Classes 89 (iii) and 112.] Feed by cooperating jaws.- A feeder and former for uniti n g strips o f material bv sewing, nailing, stapling, or like operations, consists of two jaws C, D between which the strips are clamped, the jaw D being moved by parallel link mechanism F, F<1>, K. The jaws are carried by pegs C<1>, D<1> sliding in a supporting frame A. One of the links F is connected in a suitable manner to an operating part of the machine to close the jaws prior to the feeding movement of the frame A, which reciprocates on the slider B, and to open them prior to the return moyement of the frame.
Patent GB-423949-A (GB)
Title: Cylinder grinding tool
IPC: B24B33/08
Filed: 1933-08-12
Abstract: 423,949. Grinding cylinders. AUTOMOTIVE MAINTENANCE MACHINERY CO., 816, West Washington Boulevard, Chicago, U.S.A. Aug. 12, 1933, No. 22566. Convention date, Aug. 20, 1932. [Class 60] Round holes, enlarging and trueing.-A tool for grinding cylinders consists of a cage comprising end plates 20, 21 connected by bars 22 and having, in their opposing faces, grooves 28 to accommodate slidably the ends 25d of carrier members 25 carrying abrasive members 26, or abrasive members 26 and guide members 27 of felt, &c. The carrier members have enlarged heads 25b with channels 25<c> therein, the members 26 or 27, carried in channelsupports 26a or 27a being held in the channels by clamp-blocks 61 held in cut-out parts of the carriers 25 by screws 62. The grooves 28 are arranged so that their centre lines m-m are parallel to, and offset forwardly, in the direction of rotation of the tool, from radial lines r of the tool, and the carrier bodies have their inner edges formed with notches 25f for engagement with adjusting-cones 31, 32, the edges of the notches being cut at an angle, shown at 35, so that the carriers engage the cones in lines lying in the centre planes m<1>-m<1> of the carriers ; chatter, &c. of the tool due to looseness of the carriers in their grooves 28 is thus prevented. The cones are moved by a central screwed rod 30 operated by a nut 44, endways movement of the rod being prevented by a screw 46 engaging between the nut and a collar 47 on the rod, and being carried by an extension 36 on the end plate 20 ; rod 30 is pressed upwardly by a spring 49 and the carriers are pressed inwardly by spring rings 29. The extension 36 is provided with a spherical upper part 36b forming part of a " universal drive. Disclaiming reference is made to Specification 405,323. Specification 405,617 also is referred to.
Patent GB-1087061-A (GB)
Title: Improvements in or relating to methods of jointing and repairing tubes of plastics materials, for example, cables sheathed with a plastics material
Inventor: WARD WILLIAM CHARLES
IPC: H02G15/18
Filed: 1963-06-06
Abstract: 1,087,061. Cables; sealing cable Joints. H.M. POSTMASTER GENERAL. July 14, 1964 [June 6, 1963], No. 22569/63. Headings H2C and H2E. [Also in Division F2] In a method of jointing plastics pipes or cable sheaths circumferential bands of plastics material having an integral facing of metallic foil are bonded to the ends of the pipes or sheaths, which are then sealed to a jointing sleeve by means of an epoxide or similar resin, mixed with a hardening agent, which adheres to the metallic foil. As described, a single turn of polyethene tape faced with aluminium foil is wrapped on the end of a pipe or sheath and tightly bound with 20 S.W.G. copper wire. Heat is applied by a blow-torch to cause softening and union of the polythene surfaces, the wire being removed after subsequent cooling (Figs. 1-4, not shown). Fig. 5 shows three cables 1, 2, 3 inserted in a jointing sleeve 7, the ends of the cables and the sleeve having been prepared in this way, and Fig. 6 how sealing is effected with wiped masses of epoxide resin " putty " 12. Applications using twopart or split sleeves are also described. A similar method for repairing a damaged pipe or cable sheath comprises bonding a circumferential band of the composite plastics/metallic foil material over the damaged area and then covering it and the adjacent surface of the sheath with epoxide resin " putty."
Patent GB-271698-A (GB)
Title: Improvements in or relating to water-tube boilers
IPC: F22B17/10
Filed: 1926-09-14
Abstract: 271,698. Kr÷pelin, F. Sept. 14, 1926. Water-tube boilers of the kind in which downwardly extending headers a, a<1> either undivided or subdivided vertically, are connected by inclined tubes are provided with high pressure steam generating elements d in place of the tubes and subdivided high pressure headers c, c<1>, arranged parallel to the existing headers a, a<1> and preferably outside them. The high pressure elements pass through the existing headers in this case and are expanded in their walls so as to close the water-tube holes. Tubular sleeves may be drawn into the headers if the high pressure elements are of smaller diameter than the water-tubes. Steam drums h, h<1> are connected by risers i, i<1> and downcomers k, k<1>, with the high pressure headers. Supplementary elements may be located underneath or at one or both sides of the low pressure headers. The drum b and headers a, a<1>, which remain may be utilized as an independent low or medium pressure boiler or preferably as a feed heater for the high pressure boiler.
Patent GB-161600-A (GB)
Title: Improvements in and relating to treating fibres
IPC: D01C1/04
Filed: 1919-09-15
Abstract: 161,600. Pickup, J. H., and Wilson, G. A. Sept. 15, 1919. Pulp, preparation of.-Fibres from the leaves of agave, yucca, and the like are obtained in a pliable state suitable for spinning and for papermaking, by allowing the material to stand and ferment in water for 2 to 4 days at 80‹-100‹ F. The liquid, which may contain citric acid and alcohol, is expressed. The material is then washed and treated with slaked lime, the liquid is again squeezed out and the material, without washing is boiled for 3 to 5 hours under 20 to 35 lbs. pressure and subsequently washed and neutralized in an acid bath, or acid salt, such as hyposulphite of soda, if the product is dark coloured, or muriatic, sulphuric, or acetic acid. It is next again washed and boiled under pressure with alkali for about 4 hours, then washed and the alkali neutralized with acid or acid salt as before, again washed, dried, and passed through a breaker or carding machine. The process is applicable to Agave Lechuguilla, A. Heteracantha, A. Mexicana, (Maguey), Yucca Gloriosa, Y. Filamentosa, and Y. Baccata.
Patent GB-718435-A (GB)
Title: Improvements in aeroplane control organs
Inventor: PARKES DUDLEY LLOYD
IPC: B64C13/00
Filed: 1951-09-28
Abstract: 718,435. Aeroplane wings and naps. SHORT BROS., & HARLAND, Ltd. Sept. 9, 1952 [Sept. 28, 1951], No. 22680/51. Class 4 An aerofoil with a flap pivoted thereon comprises a cavity within the member it is desired to influence (aerofoil or flap) and a blade-like member pivoted within the cavity, dividing it into upper and lower compartments, communicating with the atmosphere on the upper and lower sides of the flap, so that angular deflection of the flap causes a pressure difference on the two sides of the blade like member, thus developing a turning moment on the member it is desired to influence. In Figs. 1 and 2, the member 11 is to be influenced, being pivoted at 12 on brackets 13 extending from the wing 10 into a cavity 14 in the flap 11. Also pivoted to brackets 13 is a blade 17 anchored to the flap at 18, and sealed at its leading edge by a strip 19 to a concave face 101 of the wing. The trailing edge of the blade may also be so sealed. Deflection of the flap, as in Fig. 2, causes differences in pressure on upper and lower flap surfaces, which differences are transmitted through slots 15 to the compartments A and B into which the blade 17 divides the cavity. These pressure differences exert a moment on the flap tending to counteract the restoring force exerted by the airstream on the flap. In an alternative embodiment, Figs. 3 and 4 (not shown) the cavity is wholly within the flap. In Fig. 5, the wing 10 is pivoted on a spar 20, and a forward cavity 21 is divided by a blade 26 pivoted on brackets attached to the spar. The compartments C and D communicate with the atmosphere by slots 151, 152, and pressure differences due to deflection of the flap I are transmitted to compartments C and D to exert a turning moment on the aerofoil about spar 20, tending to alter its angle of incidence, so that downward deflection of the flap makes the incidence of the wing decrease or become negative.