baber/WOPTO huggingface dataset:
Patent GB-948096-A (GB)
Title: Improvements in or relating to methods for forming members embodying prestressed concrete and members made by such methods
IPC: B28B23/12
Filed: 1961-03-28
Abstract: 948,096. Pre-stressed concrete pipes. E. FREYSSINET. March 28, 1961, No. 11237/61. Heading F2P. In a method of making pre-stressed concrete members, wherein the concrete has, from the time of the manufacture of the members, the properties of hooped concrete, the concrete is placed inside a permanent casing which limits the volume of the concrete and the latter is subjected over its surface of contact with the casing to a permanent radial compression giving rise also to a compression circumferentially thereof. As shown, the pipe comprises inner and outer casings 1, 5 of steel defining an annular space for a concrete body 3 having a reinforcement of one or more helically wound wires 4. In making the pipe, the wires 4, Fig. 4, providing the reinforcement are wound on a drum formed by parallel bars, flexible ties 7 of synthetic plastic material being applied to support the coils of the wires when the latter are removed from the drum. A number of tubes 8 formed by strips of steel coiled in helices are arranged within the reinforcement and this assembly is introduced into the casing 5, the assembled reinforcement and casing 5 then being passed over the casing 1 which is provided with welded-on-corrugated centring strips 12. The mould formed by the two casings is placed in a frame 13, comprising a head 12 connected by posts to a platform 14, and on a metal plate 15 carried on wheels 16, the outer casing 5 resting on a rubber sealing ring 17, an inflatable, hollow, rubber sealing ring 19 being forced against the inner surface of the casing 1. Similar seals are provided at the upper ends of the casings. Below each drainage tube 8 the ring 17 includes an insert fixed to a slide which are slidable to open the bottoms of the tubes. A ring of jacks 22 are interposed between the platform 14 and the plate 15 and are raised to apply the upper ends of the casings against a metal plate 23. The plate 13 is provided with a number of orifices 26 opening into the annular space between the casings and connected by pipes to concrete-delivering pumps, the pipes being forced against the plate 15 by jacks 28. When the concrete has been injected and the space between the casings filled the tubes 27 are closed and water under pressure is introduced into the casing 1 to increase the diameter of the casing and thereby force the concrete between the interstices of the wire helices, the tubes 8 being opened for the drainage of water expressed from the concrete, the water pressure being increased in order to stretch the hoop formed by the helical wires 4. Longitudinal reinforcements may be incorporated in the pipes. Tubes as shown in Fig. 9, or in the form of a cross, and expandible by water pressure, may be disposed in the mould formed by the outer casing and before the concrete is poured.
Patent GB-821531-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: H03F1/30
Filed: 1956-04-13
Abstract: 821,531. Measuring instruments. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 13, 1956 [April 16, 1955; Jan. 31, 1956], No. 11328/56. Class 37. [Also in Group XL (c)] In a circuit for indicating the value of a D.C. voltage V on a meter M, two transistors A, B are connected with their emittercollector paths in series, a resistor 1 being arranged between the collector of transistor A and the emitter of transistor B so that the operating points of the transistors are stabilized (see Group XL (c)). The meter M is connected to a potential divider 9, 10 to compensate for the drift of the meter with varying supply voltages. A similar drift compensation may be obtained by connecting a resistor in series with the base connection of transistor B.
Patent GB-107853-A (GB)
Title: An Improved Device for Holding and Releasing Lifebuoys.
Inventor: HUGHES HUGH
IPC: B63C9/22
Filed: 1916-08-12
Abstract: 107,853. Hughes, H. Aug. 12, 1916. Buoys. - In lifebuoy holding and releasing apparatus of the type in which a ring life-buoy is held by one or more lower bracket arms and a pivoted upper bracket arm adapted to be released to permit the removal of the life-buoy, the holding mechanism is constructed and arranged so that when the upper bracket arm is released by the withdrawal of a supporting strut, the lifebuoy falls by the action of gravity clear of the holding appliance. The appliance may be mounted either outside or inside the bulwark &c. so that the life-buoy when released may fall either overboard or inboard. As shown in Fig. 2, the life-buoy E is secured either inside or outside the ship's rail or bulwark B on a back-plate A provided with one or more adjustable lower bracket aims C and a pivoted upper bracket arm D normally supported by a strut F resting on a projection &c. f<3>. The strut is housed between cheeks G having sloping upper ends g', so that, when it is released by the operation of the push-pin H or handle J, &c., the strut and the arm D fall between the cheeks, and allow the life-buoy to slide off. To prevent wanton operation, the push-pin &c. may be enclosed in a glass casing after the manner of a street firealarm; or, as shown in Fig. 6, it may be arranged so as to fracture a glass plate K.
Patent GB-769278-A (GB)
Title: Improvements in or relating to the manufacture of insoles and sewing ribs therefor
IPC: A43D43/06
Filed: 1955-04-21
Abstract: 769,278. Boots &c. BRITISH UNITED SHOE MACHINERY CO., Ltd. April 21, 1955 [May 14, 1954], No. 11476/55. Classes 17 (1) and 17 (2). [Also in Group VIII] A lipped insole 34 has a sewing rib S attached by pressure-responsive adhesive. The strip S comprises a strip 20 of fabric, such as canvas, and a strip 22 of fibrous material, preferably fibres bonded by latex, joined by pressureresponsive cement to make a two-ply rib 28 with two outwardly-extending flanges for attachment to the insole. The flange 30 may be slit at 32 to allow it to comform to the curves of the insole. The lip may be reinforced on its inside by an additional layer of fabric which may cover the whole of the area between the ribs. In a modification, the insole may have a complete reinforcing layer to which the rib is subsequently attached. The rib may be attached by the machine described in Specification 664,645 modified to form the rib before its application.
Patent GB-572308-A (GB)
Title: Improvements in or relating to airspeed indicators
IPC: G01P5/14
Filed: 1943-07-14
Abstract: 572,308. Air-speed indicators. BENDIX AVIATION CORPORATION. July 14, 1943, No. 11488. Convention date, June 13, 1942. [Class 106 (ii)] An air-speed indicator having a pressureresponsive element 18 adapted to operate indicating-mechanism and subjected to a pressure differential through a static pressure connection to one side of said element and a dynamic pressure connection to the other side thereof, is characterized by compensating means 35 provided in one of said pressure connections for varying the pressure differential on said element to compensate for change of pressure due to altitude. As shown, the outside of a pair of capsules 18 is subjected to the pressure inside a casing 10 derived from a static pressure source 30. The inside of the capsules is connected to a pitch tube 32, through a diffuser 35 constructed of carbon, porcelain, compressed powder or metal wool, paper or very thin metal such as gold, of the type described in Specification 507,990. The action of the diffuser is to increase the volume of air flow as the pressure drops and so maintain the pressure differential constant for a given speed at any height. The usual capillary leak 38 is provided. A further diffuser 40 (Fig. 3, not shown) may be provided in the static pressure connection. The capsules operate an indicator 24 through lever-and-chain mechanism against the action of a spring 29. Specifications 507,992 and 507,993 also are referred to.
Patent GB-551722-A (GB)
Title: Improvements in machines for testing physical qualities of materials
IPC: G01N3/14
Filed: 1941-09-09
Abstract: 551,722. Testing physical qualitites of materials. DENISON & SON, Ltd., S., and LENTON, A. Sept. 9, 1941, No. 11489. [Class 106 (ii)] A compression spring or springs is or are used in a testing machine to exert a force in opposition to the straining mechanism to prevent the straining being other than positive throughout the stroke. Fig. 1 shows a machine of the lever type in which the lower end of the specimen 4 is pulled down by a screw 5 prevented from turning and moved by bevel gear in a casing 7 the bevel 6 being formed as a nut. The spring 8 is located between the lower grip 4 and the gear box 7. The spring exerts a force in excess of the weight of the vertically moving straining unit and any back-lash of the screw is taken up. A rack may be substituted for the screw. In a modification the invention is applied to a hydraulic machine. Here the spring surrounds a rod which ends in a plunger in the casing, the plunger being moved downwardly by hydraulic pressure.
Patent GB-562764-A (GB)
Title: Improvements in or connected with wireless communication systems or control systems
IPC: H04W88/02
Filed: 1942-08-17
Abstract: 562,764. Electric selective control systems. NORRIS, W. H. Aug. 17, 1942, No. 11496. [Class 40 (i)] [Also in Group XL] A wireless receiving arrangement comprises a step-by-step selector in which a movable contact member is-constantly urged to return to normal by a spring but is prevented from doing so between impulses by being coupled to a fly-wheel, the flywheel being braked during the time the stepping magnet is energized. The selector is identical with that described in Specification 554,643. In the controlling arrangement shown in Fig. 5, the selector magnet 1 is impulsed by relay 22 in the output of the. wireless receiver B, and in response, relays in circuits a-c are selectively operated to effect the desired control. Sets of three relays may control steering of a vessel in varying degrees to port or starboard and a further relay may control stoppage or reversal of propulsion. A number of receivers may be controlled from a common transmitter or transmitters to perform different functions by making connections to different sets of contacts in the several receivers. The invention may be applied to a two-way wireless telephone system as shown in Fig. 6. The selector has two wipers 3a, 3b and contact banks, 3a being associated with the receiving circuit and 3b with the transmitter A. To make a call, switch 25b at the transmitter is closed and receiver 24 is removed from switch-hook 19 whereby selector magnet 1 at the calling station is operated and held and engaged lamp 21 lit. Impulses are transmitted by operating dial 18 of normal construction. At the various other stations, relay 22 in the output of the wireless receiver B repeats the impulse to selector magnet 1, the transmitter at the desired station being connected up over wiper 3b and relay 20a for call bell 20 being connected up over wiper 3a. When that station replies by raising receiver 24, the switch magnet 1 is held over contacts of switch-hook 19 and the receiving circuit for speech is completed.
Patent GB-1262962-A (GB)
Title: Apparatus for the manufacture of corrugated and helically-coiled pipes from thin sheet metal
Inventor: WESTERBARKEY LORENZ
IPC: B21C37/12
Filed: 1969-03-04
Abstract: 1,262,962. Making corrugated helically Jointed tubes. L. WESTERBARKEY. 4 March, 1969, No. 11536/69. Addition to 1,182,116. Headings B3A, B3E and B3J. Apparatus for making corrugated and helically coiled pipes for heating, ventilating and air conditioning systems from thin sheet metal or foil consists of a multi-roll machine in which a sheet of metal is corrugated and a coiling machine wherein corrugated roll pairs 5a to 15e are formed with grooves that progressively and gradually narrow and deepen so that the sheet is deformed only by bending and is not subjected to compression or stretching. The coiling machine is provided with entry guide rolls 9, 10 (Figs. 6 and 7) which bend the edges of the corrugated sheets so that the edge corrugations are interengaged on the coiling mandrel 11 and held together by compression rolls 11, 12 (Fig. 10) to form a joint which is subjected to further pressure by additional folding rolls 16 (Fig. 11) to lock the corrugations together. The grooves in the corrugating rolls following the initial sinusoidal-shaped rolls are formed by ribs so that the metal sheet can bend freely without strain. The folding rolls 16 are provided with additional ribs which engage the corrugations in the corrugated pipe running from the mandrel on both sides of the fold and knurled portions 17, 18 of the rolls lie between these guide ribs. The knurled portions can include indicia such as wording or symbols. The outer roll can be driven by a flexible shaft which assists in withdrawing the corrugated pipe from the mandrel.
Patent GB-921451-A (GB)
Title: Heaters for comestible products
IPC: A23C3/037
Filed: 1960-04-01
Abstract: 921,451. Injectors. CHERRY-BURRELL CORPORATION. April 1, 1960 [April 6, 1959], No. 11541/60. Class 71. [Also in Group XIII]. Steam enters the inlet 44 of a nozzle 42 and passes to the inlet 58 of a second nozzle while milk to be pasteurized, from a branch 40, enters the inlet 58 through a gap 70 between the nozzles. The size of the gap is adjusted by spacing- washers 54, 68 between the nozzles and the ends of the device, where the nozzles are held by nuts 52, 66. The nozzles are of Venturi form.
Patent GB-112594-A (GB)
Title: Improvements in or relating to Vehicle Wheels.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B60B3/04
Filed: 1917-08-10
Abstract: 112,594. Jackson, W. J. Mellersh-. (Detroit Pressed Steel Co.). Aug. 10, 1917. Disk wheels.-A dished disk F is clamped against the hub flange B by the flange C of the cap-nut D, the outer edge of the disk being embraced by flanges L on the rim parts K, K<1> which are detachably secured by transverse bolts N. The inner web G of the disk engages driving-studs I projecting from the flange B.
Patent GB-946743-A (GB)
Title: Improvements in or relating to axial flow pumps
IPC: A23G3/02
Filed: 1959-04-06
Abstract: 946,743. Axial flow pumps. R. HERDMAN. April 20, 1960 [April 6, 1959], No. 11612/59. Heading F1C. An axial flow pump impeller comprises a plurality of inclined or helicoidal vanes secured at their roots in helical sequence on the shaft, the vanes being so formed and disposed that the surface of revolution of the leading edge intersects the solid of revolution swept by the preceding vane. An axial flow pump comprises a cylindrical casing 1 having at its inlet end an opening 2 communicating with a hopper 3. The casing contains an impeller comprising a series of vanes 4 mounted at their roots in a left hand pitch helical sequence on the shaft 5. The vanes may also be located in a position corresponding to a right hand helicoidal screw. The leading edge 41 of each of the vanes is so arranged that at least the outer part of this edge sweeps a locus which is a conical orifice of revolution intersecting the solid of revolution swept by the preceding vanes. To increase the extent of the intersection, the leading and trailing edges 41, 42, Fig. 2 are arranged to intersect beyond the axis of the shaft 5. The shaft 5 is driven by a dog coupling 6, 7, of which the part 7 is located in the end plate 9 of the casing I to support the inlet end of the shaft. The discharge end of the shaft 5 has a spigot 10 supported by a boss 11 of a spider 12. The spider 12 has a flange 13 clamped between the end of the casing 1 and a discharge cap 15. In a modification, Fig. 3 (not shown), the vanes 4 are disposed tranversely to the pitch line of the roots. The vanes 4 are curved in opposite directions on either side of the radial centre line and preferably the degree of curvature may increase towards the roots. The casing 1 may be arranged in the vertical or horizontal position. The vanes 4 may be twisted to a greater extent than would cause them to lie in a continuous helix.
Patent GB-580216-A (GB)
Title: Improvements relating to plug and socket connectors for use in flexible electric current leads
IPC: H01R13/648
Filed: 1944-06-19
Abstract: 580,216. Two-part couplings. TURNOCK, Ltd., G., and JACKSON, E. D. June 19, 1944, No. 11621. [Class 38 (i)] A plug-and-socket connector for use in flexible electric leads has an earth connection comprising a blade 19, Fig. 1, mounted on the socket 10 engaging a resilient U-shaped clip connector 18 on the plug 11, the socket also being provided with a shroud 25 entirely enclosing the plug pins 23 when contact is made with the sockets 27, Fig. 3. A projecting block 24 on the plug engages a recess 31 in the socket to ensure proper connection of the coupling. The mounting screws 14, 13 of the earthing blade and clip respectively, serve both to hold together the two halves of the longitudinally-divided plug and socket casings in addition to screws 12, and for attachment of the earth wires. The blade 19 may be provided with locking means such as a projection engaging a hole in the clip 18, to prevent accidental disengagement of the coupling.
Patent GB-497466-A (GB)
Title: Improvements in or relating to antennae for motor vehicles
IPC: H01Q1/12
Filed: 1938-04-19
Abstract: 497,466. Aerials. SHARP, M. April 19, 1938, No. 11744. Convention date, April 19, 1937. [Class 40 (v)] A motor-car aerial comprising a hollow or solid rod A is shaped to lie within the confines of the area of a window, e.g. windscreen 11, of the vehicle and is spaced from the window by supporting posts which are attached to it by rubber suction cups 15. The lead-in wire 17 runs from the mid-point 16 of the aerial round the periphery of the windscreen to the receiver 18.
Patent GB-118086-A (GB)
IPC: B02C17/18
Abstract: 118,086. Gallini, G. B. Aug. 8, 1917, [Convention date]. Mills and apparatus.-Relates to mills for breaking stones, &c., in which a rotary drum, having screens on the periphery, is provided with hammers m, which are pivoted on spindles in the drum and are caused by the rotation of the drum to strike anvils i. Large particles that are carried towards the top of the drum are conducted to the front of the anvil that is approaching the bottom by means of troughs g, g<1>, which are hinged to the sides of the drum and are arranged to fall into conducting position and to return to inactive position during the rotation of the drum. The troughs are arranged in pairs, one at each side of the drum. As shown in Fig. 1, the troughs g, g<1> are in inactive position and conducting position respectively. A prism p is arranged to form a continuation of the upper troughs. The drum is fed periodically from a hopper T, the stones &c. passing through doors g in the screens. The hopper is provided with a counterweighted door which is opened by projections on the drum, the doors q being opened by the engagement of levers with a projection on the counterweighted door.
Patent GB-1384356-A (GB)
Title: Free wheel
IPC: F16D41/30
Filed: 1973-03-12
Abstract: 1384356 Freewheels ETABS MAURICE MAILLARD 12 March 1973 [17 March 1972] 11810/73 Heading B7E [Also in Division F2] A one-way clutch for a cycle comprises pawls 12 carried by a sleeve 2 fast with a wheel hub 1 and engaging ratchet teeth 11 which extend across the internal surface of a rim 3 between ball races 9, 10 of equal diameter. A plurality of sprockets 4 ... 8 are mounted on the rim 3. Plastics spacers 14, 15 separate the sprockets 4, 5, 6 which are held in the position shown between a flange 23 on the rim 3 and a sleeve 16 fast with the sprocket 7 and screwed on to the rim 3. The sprocket 8 is screwed on to a sleeve 18 of the sprocket 7. The sleeve 2 is screwed on to the wheel hub 1 by a spanner 22 which engages axial grooves 21 in the internal surface of the sleeve 2.
Patent GB-683528-A (GB)
Title: Improvements in or relating to space heater systems
Inventor: BUTLER JACK
IPC: F24D5/00
Filed: 1949-05-03
Abstract: 683,528. Electric air heaters. FINCH & CO., Ltd., B. July 28, 1950 [May 3, 1949], No. 11811/49. Class 39 (iii) [Also in Group XIII] In a space heating system (see Group XIII) air intially warmed by a domestic heating appliance is further heated by an auxiliary electric heater at the end of the warm-air duct. The heater comprises a rectangular tubular frame 30 of asbestos or like insulating material spanned at its opposite ends by helical wires 32 and is controlled by a switch in the room. The warm-air duct is shaped at its end to receive the heater which is retained by spring clips 31 on the frame 30 and has a pilot light indicating when it is switched on. Specification 565,006 is referred to.
Patent GB-203016-A (GB)
Title: Improvements in and relating to hydraulic turbines
IPC: F03B3/14
Filed: 1922-04-27
Abstract: 203,016. English Electric Co., Ltd., and Deriaz, P. April 27, 1922. Working-fluid supply; blades; regulating.-In hydraulic turbines wherein the runner 21 carries blades 22 of the radial outward-flow type shown in Fig. 1, external guiding means are arranged to produce a stable vortex within the space enclosed by the ring of runner blades by acting on the water prior to its entry into said space, as described in Specification 202,939, and regulation is effected by adjusting the angularity of the runner blades. For example, Fig. 4, the outlet angle may be adjusted by forming the rear portion of the blade bv a flexible sheet of metal 42 which is secured to the front portion 41 of the blade and adapted to be bent more or less by an arm 44 adjusted by a sleeve 45. Alternatively, the blade may be formed of two parts hinged together. In another modification, Figs. 7 and 8, pressure fluid causes the axial movement of a rod 50 in the turbine shaft, thereby rotating a sleeve 54 and rocking the blade arm 62 about a bearing 64 from the position shown in full lines to the position shown in broken lines.
Patent GB-527612-A (GB)
Title: A combined gas injection valve and ignition apparatus for internal combustion engines
IPC: F02K9/00
Filed: 1939-04-20
Abstract: 527,612. Gaseous-fuel injectors. TOWNSHEND, E. F. R. April 20, 1939, No. 11871. [Class 7 (iii)] In a compressed-gas fuel injector for internal-combustion engines, means are provided at the injection orifice for establishing a hot zone of sufficiently high temperature to initiate ignition. Gas supplied under pressure through passages 28, 26, 24, 25, 23 is injected through an orifice 4 when a valve 2 is lifted by pressure supplied at 14 from a fuel pump to a piston 8 on the valve stem 1. The gas pressure raises a serrated baffle 46 from a conical seating on a flame plate 45, which is formed with passages 47 through which air is drawn from the compressed charge in the cylinder, to mix with ' the gas passing through the venturishaped passage in the plate 45. The valve 2 is closed by a spring 17, and the baffle 46 is closed by springs 39, 40 on its stem 41. For providing the hot igniting-zone, a terminal 35 is connected in series with an inductive resistance, dynamo &c. and carries a disc 34 bearing on the flange 38 of a cup 37 on which rest the springs 39, 40 on the stem 41, so that when the baffle 46 is moved downwards away from the flame plate 45, an electric arc is formed between them. High-tension ignition may be used with sparking-points adjacent the injection nozzle ; or an incandescent electric igniter may be employed. Lubricating-oil may be supplied to an annular recess 20 around the valve stem 1, and another annular recess 19 above this is connected to atmosphere in order to prevent gas leaking along the stem from reaching the hydraulic chamber 13 around the piston 8. Excess fuel supplied by the'pump to this chamber passes back to the tank through a relief valve.