baber/WOPTO huggingface dataset:
Patent GB-1509893-A (GB)
Title: Differential pressure indicators
IPC: G01L13/02
Filed: 1974-03-29
Abstract: 1509893 Differential pressure indicator FAWCETT ENG Ltd 27 March 1975 [29 March 1974] 14056/74 Headings BID and BIT [Also in Division G1] A differential pressure indicator e.g. for monitoring a filter showing when it needs to be changed and optionally operating an alarm comprises a magnetic piston 14, 15 spring biassed to one open end of a cylinder 9 which is exposed to the higher pressure, and an indicator 28 which is moved by the pistons magnetic attraction to show through a transparent area 32 (43 Fig. 2 (not shown) that a given pressure has been exceeded. Excess pressure causes a rod 20-22 to force successive enlargements 21, 22, leftwards as shown, between the jaws of a split collett 23. The piston may be self - returning or only manually after e.g. a filter has been changed Figs. 3, 4 (not shown).
Patent GB-846355-A (GB)
Title: Improvements in or relating to support structures for seed drilling machines
IPC: A01C7/08
Filed: 1958-05-02
Abstract: 846,355. Agricultural implements. STOKLAND, S. May 2, 1958 [May 7, 1957], No. 14092/58. Class 6(1). An agricultural implement such as a seed sower is provided with a frame 1 carrying a rotatable ground wheel 4 and attached by arms 7 to the lower links 9 of a tractor linkage. The frame 1 is pivotally attached by arms 5 to a frame 11 fastened to the upper link 13 of the hitch linkage and provided with levers 17 carrying drills or planting ploughs 18, the arrangement being such that the implement may be raised as shown in dotted lines so that the drills or ploughs 18 are clear of the ground while the wheel 4 is retained in the ground further raising lifting the wheel 4 clear of the ground. Downward movement of the levers 17 is limited by arms 17<SP>1</SP> which abut against a tube 14 on the frame 11. Relative movement between frame 1 and frame 11 is limited by means of a hook 19 on frame 11 which engages a tube 6 of frame 1. Alternatively a lever may be mounted on arms 7 to abut on the upper side of the links 9.
Patent GB-450784-A (GB)
Title: Liquid feed systems for fluid pressure engines
IPC: F02B1/00
Filed: 1935-05-15
Abstract: 450,784. Suction pipes and reservoirs. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and MURRAY, C. V., Whitley, Coventry. May 15, 1935, No. 14222. [Class 102 (i)] [See also Group XXIX] The fuel tank 12, Fig. 2, of an aircraft is arranged longitudinally and communicates at each end by branches 13 with the suction pipe 14 of the pump 15. The pipe 14 is arranged close to the tank and the branch 13 nearer the pump is controlled by a float valve 17 in order to prevent suction of air when the machine is climbing, as shown. The valve may comprise a body 17, Fig. 3, carrying a cork float 18, and slidable on a guide rod 19. The valve may be enclosed in a gauze cage 21, in order to prevent disturbance of the valve by surging. Alternatively, the valve controlling the outlet 13 is operated by a float at the end of a lever.
Patent GB-239601-A (GB)
Title: Improvements in or relating to airships
IPC: B64B1/62
Filed: 1924-06-12
Abstract: 239,601. Airship Guarantee Co., Ltd., and Wallis, B. N. June 12, 1924. Aerostats.-A protective envelope located between the hydrogen gas bag or bags and the outer surrounding network and charged with an inert gas, such as nitrogen or carbon dioxide, is divided up by partitions into cells, certain or all of which are in gascommunication with one another. In the arrangement shown, the framework of the aerostat is composed of longitudinal and transverse members of triangular cross-section the apices of the longitudinal members A being directed outwards and those of the transverse members B inwards. The outer walls c of the hydrogen gas bags Care provided with partitions d (certain of which at regular intervals are gas-tight) connected to a nitrogen-tight envelope d<2> on the outside of which is disposed the mesh wiring envelope E of the kind described in Specification 233,020. The gas bags C are filled from a hydrogen main G, and the annular surrounding compartments D from a nitrogen main F. Non-return valves are provided for placing the separate sections of the nitrogen envelope in communication for charging purposes, and relief valves may be arranged to discharge into the interior of the transverse frames B as do also the automatic and maneouvring valves of the hydrogen bags C. If desired, the nitrogen compartments may be extended between contiguous gas bags C on one or both sides of the mesh wiring bulkheads H. According to a modification, the nitrogen envelope is formed of longitudinally-disposed compartments each provided with non-return and relief valves, and charged to a pressure equal to that of the corresponding region of the hydrogen gas bag. The nitrogen envelope may be constructed entirely separate from the hydrogen gas bags.
Patent GB-472341-A (GB)
Title: Improvements in or relating to electric warp stop motions for mechanical looms
IPC: D03D51/28
Filed: 1936-05-20
Abstract: 472,341. Loom warp stop-motions. GROB & CO., Ltd. May 20, 1936, Nos. 14267 and 14268. Convention dates, Aug. 9, 1935 and March 3,1936. [Classes 142 (i) and 142 (iv)] In an electric warp stop mechanism adapted for removal from the loom and comprising one or more shaft frames provided with staves 10 holding arrayed droppers L, which have closed contact slots and openended thread-engaging slots fitting over lower staves 9, the staves are supported at their ends only, one or more members prevent deflection of the staves and means are provided for supporting the staves during transportation. The ends of the staves fit into vertical frame pieces 27<1>, the top frame piece 8, together with side pieces 27, being removable. The deflectionpreventing member comprises a straight, U-sectioned metal rail 14 to which are secured two comb-like extensions 12, 13, made of insulating material such as fibre, which fit over and rest on the staves ; each end of the rail may carry a roller. When the warp threads swing across the loom beam the member 14 swings with it, the combs sliding on the staves. One transportation means comprises wooden blocks having recesses 35, 36 for accommodating the staves, wooden strips 33 for holding the staves in position, metal stirrups 37 fitting around the pieces 8, and bolts 38 which hold the assembly together ; in a modification the bolts are dispensed with, the stirrups, modified in shape, being connected by resilient tongue-and-groove means.
Patent GB-174304-A (GB)
Title: Improvements in and relating to low voltage protective circuit controllers
IPC: H02H7/09
Filed: 1921-05-23
Abstract: 174,304. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). May 23, 1921. Protective systems.-To prevent automatic resetting of a no-voltage release, the release coil 3<a>, in addition to opening the circuit of the lineswitch magnet 1, also makes a connection at 5 to a push-button switch 2, the effect of which is to short-circuit the coil 3<a> if the push button switch is kept closed. To reset the line switch after restoration of normal voltage, the push button must be opened and closed again.
Patent GB-623922-A (GB)
Title: Improvements in or relating to inertia operated devices
IPC: H01H35/14
Filed: 1947-05-29
Abstract: 623,922. Inertia switches. HEMSWORTH, C. K. May 29, 1947, No. 14321. [Class 38(v)] An inertia-operated switch comprises a heavy ball 1 suspended between two springs 2, 3, of which 2 has a fixed anchor 13, the other 3 being connected to one arm 4 of a bellcrank lever pivoted at 17. Normally the centre of the ball is in line with the points 13, 14, but on a rapid deceleration, the ball moves to the left away from a buffer 18 and so moves the arm 5 of the bell-crank lever above a recess 7 on a spring-pressed lever 6 to permit closure of contacts 9, 10. The recess 7 also serves to maintain the parts in the operated condition. In a modification, Fig. 2, (not shown), the spring 3 is connected to a spring arm instead of the bellcrank lever, and this arm may, according to a further modification, carry the movable contact. The centre of the ball may be moved to the left of the points 13, 14, in order to preload springs 2 and 3 and reduce the response to vibration.
Patent GB-490964-A (GB)
Title: Improvements in or relating to folding wing aircraft
IPC: B64C3/56
Filed: 1937-05-22
Abstract: 490,964. Folding - wing aircraft. FAIREY AVIATION CO., Ltd., LOBELLE, M. J. O., and TROTTER, J. C. May 22, 1937, No. 14330. [Class 4] In order to permit wing folding about a vertical axis intermediate of the wing chord, parts or the whole of the trailing portions of the wings, including flaps, are adapted to be folded back against the main portion of the wings, each folding portion being supported by triangular brackets which are hinged at one corner at or near one surface of the main wing and are detachably secured at another corner at or near the other surface of the wing whilst the third corner forms the flap pivot. In one form, Figs 1 and 2, a triangular bracket 4 is hinged at the lower end 6 to an extension of rear spar 7 and is normally secured at the upper end 8 by a catch 9 to the spar. Bracket 4 supports flap 11 at 14 and a fairing 12 forming a continuation of the wing upper surface. A hydraulic ram 15 connected at one end to the rear end of the flap is connected at the other to end 14 of bracket 4 by a link 16 and to the upper end of the bracket by a folding link 17, 18 which is normally held straight by a link 19 pivoted on an extension 20 of the lower end of the spar. Extension of the ram effects adjustment of the flap. The folding mechanism comprises a push-pull rod 25 pivoted to a lever 21 of which the upper end is movable in a slotted bearing 26 on the upper end of the spar and the lower end is pivoted to a link 23 pivoted to a forward extension of bracket 4. Rearward movement of rod 25 first releases catch 9 to free the upper end of the bracket and then rotates the bracket about pivot 5, link 19 producing folding of links 17, 18, as shown in Fig. 2. Ram 15 if not already extended must be extended prior to this operation. In a modified form, Fig. 3, in which the trailing part of the wing is to be folded over the upper wing surface bracket 4 is pivoted to the upper end of the wing spar at 5, and folding is accomplished by means similar to those of Figs. 1 and 2. In order to compensate for the increased angular distance through which the lowered flap must move relative to the bracket and fairing the pivot with which the ram is connected is moved during folding by connecting pivot carrying link 28 to a spar plate 27 at a point 29 eccentric with respect to pivot 5 and the other pivot carrying link 16 to the bracket 4 at 14. Specification 484,622 is referred to.
Patent GB-1082942-A (GB)
Title: Improvements in or relating to apparatus for feeding rod-like articles
IPC: A24C5/35
Filed: 1963-04-10
Abstract: 1,082,942. Endless conveyers. MOLINS ORGANISATION Ltd., D. W. MOLINS, D. T. N. WILLIAMSON and H. A. STONE. April 9, 1964 [April 10, 1963], No. 14366/63. Heading B8A. Cigarette stubs 5 in a hopper 1 are fed by a primary conveyer belt 2 to a secondary belt 18. The stubs are divided by a member 36 to pass either on to a delivery conveyer belt 22 or on to a transfer belt 33. The belt 22 feeds a machine (not shown) for assembling cigarettes and stubs The transfer belt 33 feeds a second secondary belt 38 which leads to a deflector member similar to the member 36. The latter is associated with a second delivery belt (not shown) and second transfer belt (not shown). The final secondary belt 39 feeds a final delivery belt 41 and a final transfer belt 46, the output of which is carried to a belt 49 which builds the stubs up against a wall 69 to constitute a reserve. Detectors 70, 71 maintain a predetermined lower and upper limits of level on the reserve belt 49 by stopping a feed belt 66 or stopping the primary belt 2 respectively.
Patent GB-1502766-A (GB)
Title: Electrostatic focusing arrangements
IPC: H01J23/083
Filed: 1974-04-02
Abstract: 1502766 Discharge tubes EMI VARIAN Ltd 12 March 1975 [2 April 1974] 14486/74 Heading H1D In an electron beam discharge tube in which a beam focusing electrode 41 is supported by an insulator 42 disposed in the high electric field arising from a potential difference between electrode 41 and an adjacent electrode, electrical breakdown arising at the electrode-insulator interface is prevented by conductive shields 47 and 48 which extend from the electrode to the other side of the interface, to shield it from the electric field. Shields 47 and 48 may be integral extensions of the electrode 41 or attached thereto, and the electrode may be part of a klystron focusing system, the insulator 42 extending to the earthed metal envelope to which the adjacent electrode is conductively attached.
Patent GB-1473840-A (GB)
Title: Apparatus for indicating change in acoustic properties of a  medium
IPC: G01F23/296
Filed: 1974-06-26
Abstract: 1473840 Sensing acoustic impedance changes UNITED KINGDOM ATOMIC ENERGY AUTHORITY 26 June 1974 [26 March 1973]  14514/73 Heading G1G Changes in the acoustic impedance of a material loading a transducer are sensed by driving the transducer with rectangular electrical pulses of predetermined rise-time, mark-space ratio and repetition frequency so that as a result of transducer oscillation a distorted rectangular waveform voltage appears across the transducer. The distortion is a simple voltage excursion from one of the voltage plateaux of the rectangular waveform. By applying a bias to a signal taken from across the transducer this voltage excursion is extracted and its amplitude is a measure of the transducer loading. The invention is applicable to detecting liquid level or detecting voids between material bonded together. The transducer and its mounting may be as in Specification 1289100, Division H3-5. The amplified and rectified voltage excursion may be fed to a meter or threshold detector.
Patent GB-202722-A (GB)
Title: Improvements in or relating to braiding and like machines
IPC: D04C3/00
Filed: 1922-05-23
Abstract: 202,722. Wade, H., (Christensen, C. V. J., Smith, E. C., Armington, A. A., and Bardsley, W. W.). May 23, 1922. Braiding - machines are provided with means such as one or more stationary fingers 35 which engage yarns y drawn from travelling supplies Y when the yarns are abnormally displaced and restore them to normal working position, namely in the guiding- notches 10 of the guides G. The invention is described in connection with the type of machine described in Specification 13121/11. The yarncontrollers G may be operated as described in Specification 146,429. The fingers 35 are so arranged as to be out of engagement with the yarns during the normal working of the machine. The switches for defecting yarns y over the curved edges of the shuttles G are formed as bell crank levers pivoted on an oscillating ring mounted on rollers, and are connected together by links in pairs.
Patent GB-235712-A (GB)
Title: Improvements in surgical and dental appliances
IPC: A61B5/053
Filed: 1924-06-16
Abstract: 235,712. Cameron, W. J. June 16, 1924. Electric and magnetic appliances.-A surgical and dental appliance for teeting the condition of the teeth &c., and of the kind comprising a pair of spaced electrodes mounted in an insulating tubular part through which the ends project, has the projecting ends 10, 11 mounted in insulating bearings 8, 9. The conductors are connected to a screwed plug 3, and are spaced apart by means of a plug 14 made of wool-felt &c., and by a cement filling 15.
Patent GB-1147595-A (GB)
Title: Switching filaments and films of high molecular weight polyoxymethylenes
Inventor: RELLENSMANN WOLFGANG
IPC: D01F6/66
Filed: 1966-04-01
Abstract: 1,147,595. Stretching polyoxymethylene filaments and film. FARBENFABRIKEN BAYER A.G. 1 April, 1966 [1 April, 1965], No. 14637/66. Heading B5B. Filaments or fibres of a polyoxy-methylene having an "inherent viscosity" of 0À8 to 2À5 preferably 1À0 to 2À0, inclusive are stretched at a stretch ratio of at least 4: 1 for example up to 15: 1, at a temperature which is not more than 40‹ C. and is preferably 20 to 30‹ C. below the crystalline melting point of the material of the unstretched filaments or films. This property can be determined by a differential thermoanalysis of the filament or film according to the method of Morita and Rice (Analytical Chemistry 27, pages 336-339, 1955). The filaments or films may be stretched in two stages; in a first stage at a stretch ratio of 4 : 1 to 8 : 1 and at a temperature 20 to 40‹ C. below the crystalline melting point of the unstretched filaments or film followed by a second stage in which the stretched filaments or film is further stretched at a stretch ratio of 2 : 1 to 5 : 1 at a temperature 5 to 25‹ C. below the crystalline melting point of the unstretched filament or film. The polyoxymethylenes used in making the filament or film must have molecular weights of 20,000 to 125,000, preferably 30,000 to 85,000. The polymers may be obtained by polymerization of formaldehyde and subsequent stabilization of the polymers or there may be used copolymers of trioxane with dioxolane and oxthiolane. In an example a polyoxymethylene stabilized by esterification with acetic anhydride and having an inherent viscosity of 1.35 is melt spun to form filaments having a crystalline melting point of 181‹ C. The filaments are stretched over a heating coil maintained at a temperature of 160‹ C. Œ 1‹ C. at a stretch ratio of 9 : 1. In another example, a trioxane/oxthiolane copolymer stabilized by partial alkali degradation and having an oxthiolane content of 1À5% and an inherent viscosity of 1À35 is melt spun to form filaments having a crystalline melting point of 175‹ C. which are stretched at a stretch ratio of 12 : 1 over rollers heated to 150‹ C. The inherent viscosity if the polymer is derived from the relative viscosity measured with a 0À5% solution of the polymerinp-chlorophenol at 60‹ C.
Patent GB-123285-A (GB)
Title: Improvements in Composition for the Manufacture of Articles Impervious to Fluids.
Inventor: WOOD EDWIN
IPC: C08L97/00
Filed: 1918-09-11
Abstract: 123,285. Wood, E. Sept. 11, 1918. Net floats.-A composition for the making of net floats consists oi waste cork. sawdust and pieces of cork, with or without refuse of tan or wood fibre, formed into a mass with a mixture of alum. crude shellac, carbon bisulphide, and methylated spirits.
Patent GB-471388-A (GB)
Title: Improvement in catamenial devices
IPC: A61F13/20
Filed: 1936-05-25
Abstract: 471,388. Catamenial tampons. ROSS, F. A. May 25, 1936, No. 14768. [Class 81 (ii)] An internal catamenial pack comprises many layers of thin strip material, made of porous vegetable matter easily disintegrable in running water, foldable in U-shape to form an elongated pack of a size suitable for insertion into the vagina, said layers extending lengthwise of the pack and being connected together to permit limited relative movement and presenting laterally exposed edges whereby they may open and expand the pack when its upper end is forced against the vaginal vault. The layers 4, e.g. of crÛped toiletpaper are superposed; Fig. 8, or formed by circularly winding one or more strips, Fig. 7, linen threads or like members 7 being incorporated to prevent disintegration during removal by means of the withdrawal cord 3. Strips of different widths may be used or the layers arranged in staggered relationship so that alternate edges project. The layers may also be trough-shaped. The outer layers may be the more loosely wound. In using the ring form of pack, one side is folded inwardly as in Fig. 4, to give the U-shape. An inserting instrument comprises a head 17 engaging the ends 11 of the pack, and a flat member 19 located in the re-entrant angle 8. The pack may be coated with soap or gum which when moistened reduces friction, or may be enclosed in a sheath 12, Fig. 2, of glazed paper similarly coated. This is folded inwards at the tapered end 20 so that after insertion into the vagina the pack can be pushed out through the end 20 by holding the rear end of the sheath and pushing on the handle 18.
Patent GB-253548-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/04
Filed: 1926-06-11
Abstract: 253,548. Chilton Pen Co., (Assignees of Upton, H. J.). June 11, 1925, [Convention date]. Self-filling reservoir pens; caps. - The sac 4 of a self-filling fountain pen is collapsed by sliding the barrel 7, which is provided with an aperture 11 adapted to be closed by the finger over an open-ended tube 6 secured to the nib-section 1 and enclosing the sac, and the nib-covering cap 9 is adapted to screw on the barrel instead of the nib-section so as to facilitate attachment and removal and to prevent accidental movement of the barrel on the inner tube when the cap is in position. The sac 4 is secured to the nib-section. and the enclosing-tube 6, which is preferably of metal, may be secured directly to the nib-section by screwing, or by means of prongs formed therein to a separable member 5 mounted on the nibsection and serving as a finger-grip. The outer end of the tube 6 is formed with a spring finger 12 adapted to engage an annular recess 13 in the barrel 7 to prevent removal. The cap 9 is provided with an internal shoulder engaging the end of the nib-section. The nib-section, or the section 5 when this is provided, is formed with a shoulder engaged by the end of the barrel, and is of slightly less diameter than the screw-threaded portion of the barrel to facilitate application of the cap.
Patent GB-321466-A (GB)
Title: Apparatus for effecting a graphic recording accompanying the electrical impulse transmission, more particularly for automatic or semi-automatic telephone apparatus
IPC: H04M3/64
Filed: 1928-09-18
Abstract: 321,466. Marks, E. C. R., (Automatische Fernsprech-Anlagen-Bau-Ges.). Sept. 18, 1928. Type-printing telegraphs.-The type-wheel of a type-printing telegraph, used for recording sets of selecting impulses in automatic telephony for supervisory purposes, is provided with a special character in its normal position so that metering or other special impulses may be recorded. The type-wheel shaft is moved step by step by a magnet a into the printing position, and, after pausing in this position for the operation of the printing maget j, is automatically moved forward to the next normal position. A type-wheel q bearing time indications may be moved step by step by a magnet p, the circuit of which is controlled by a clock, printing being effected by a magnet s. The tape is fed by a magnet n. Fig. 4 shows the circuit connections of the magnets a, j, p, s, n. When the plug St is inserted in the jack Kl connected to the impulse circuit A, B, the impulse relay J energizes a slow-release relay v<1>, interruptions of the circuit A, B being repeated to the type-wheel stepping-magnet a. At the first interruption, slow-release relays v<2>, v<3> are energized, and when the interruptions cease, relay v<2> closes the circuit of the printing magnet j, and subsequently relay v<3> closes a stepping- circuit for the magnet a over an off-normal contact a.k and a. relay interrupter I, II, whereby the type-wheel is moved on to its next normal position. The tape-feeding magnet n is energized at each series of impulses by the relay v<2>. The metering impulse energizes relay z, which locks up. When the calling subscriber hangs up, relays J, v<1> de-energize, and relay v<2> again energizes over switch-arm nI of magnet n. Relays v<2>, v<3> alternately energize and de-energize, causing magnet to step round the switch-arms nI, nII, thereby closing the circuit (1) of the printing- magnet j and (2) of the printing-magnet s of the time recorder.