baber/WOPTO huggingface dataset:
Patent GB-1378596-A (GB)
Title: Borehole close-off tool
IPC: E21B33/127
Filed: 1972-02-28
Abstract: 1378596 Boring earth &c SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 28 Feb 1972 9006/72 Heading E1F A close-off tool for inclusion in a drill string comprises a mandrel M telescopic in a housing H, an inflatable packer P, a first channel 30, 31, 32, 35, 36, 37 between a pressure source 23 and the interior of the packer, a second channel formed by bores 28, 43, a third channel 17, 44 between the bore 28 and the space about the mandrel, a coupling 45 for the transmission of torque between mandrel and housing, and valves V1, V2, V3 in the respective channels and operable by relative displacement of the mandrel and housing. During drilling the tool is in the string above the drill collars, the coupling is engaged and mud is pumped down the string and through the open valve V2 (see Fig. 1). Sudden entry of formation fluid is controlled by lowering the mandrel to close valve V2 and open valve V1 so that mud flows through openings 29 to force a piston 27 down and cause oil in the chamber 23 below the piston to flow through the first channel into the packer to expand it into engagement with the borehole wall 54. The mud pumps are stopped and the mandrel is raised to close the valve V1 and open the valve V2 so that the increased pressure in the lower part of the borehole may be measured at the surface. Heavier mud of a density sufficient to control the increased pressure is mixed. The valve V2 is closed and the valve V1 is opened by lowering the mandrel and the pumps are restarted pumping the heavier mud. The mandrel is partially rotated and slightly raised, the valve V2 remaining closed but the valve V3 opening so that the denser mud may be pumped to replace the mud in the annulus about the string above the openings 17 (see Fig. 5). When the annulus mud is replaced the mandrel is lowered to open the valve V1 and the pumps are stopped so that the packer deflates. The mandrel is partially rotated and raised to reengage the coupling, the pumps are restarted pumping heavier mud and drilling is resumed.
Patent GB-654838-A (GB)
Title: Improvements in laundry machines
IPC: D06F21/02
Filed: 1947-04-02
Abstract: 654,838. Washing-machines. APPLIANCE CORPORATION OF AMERICA. April 2, 1947, No. 9025. Convention date, April 12, 1946. [Class 138 (ii)] A washing-machine comprises a substantially spherical tub 15, supports 40 on opposite sides of the tub to provide a horizontal pivotal axis for the latter, an agitating rib in the lower portion of the tub, a liquid-extracting diaphragm 20 having a portion overlying the rib, means for forcing the diaphragm upwardly to extract liquid from the tub through discharge openings in a movable door 22 in the upper portion of the latter, and power means for oscillating the tub about the horizontal axis. The tub, which comprises upper and lower sections 16, 17 clamped together by a ring 18, is disposed in the upper compartment 11 of a casing 10. Shafts 37 project from the opposite sides of the tub and are rotatably mounted in V-shaped members at the top of the supports 40. A crank arm 36, which is keyed on one shaft 37, is connected at its outer end to the upper end of a link 35 which is connected in turn to the end of a pivoted lever 33; the opposite end of the lever 33 is connected by a link 32 to a crank arm 31 which is driven from an electric motor. A housing 48 enclosing the link 35 is provided in the compartment 11 to prevent leakage of liquid from this compartment to the lower compartment 12 containing the operating mechanism. The perforated door 22 is rotatably mounted inside the upper portion of the tub for closing an opening therein, and this opening is adapted to be registered with a central opening in the top of the casing. The machine is operated as described in Specification 654,832, in which washing and rinsing fluid is delivered to the tub through a pipe 25 and flexible hose 24, and pressure-fluid is admitted through an inlet 29 for raising the diaphragm 20 so as to discharge the washing or rinsing fluid and squeeze the washed articles against the top of the tub.
Patent GB-628411-A (GB)
Title: Improvements in or relating to fluid pressure actuated cylinders
IPC: F16D65/22
Filed: 1947-04-02
Abstract: 628,411. Fluid-pressure-operating cylinders. BENDIX AVIATION CORPORATION. April 2, 1947, No. 9034. Convention date, April 18, 1946. [Class 103 (i)] In hydraulic cylinders such as are used in wheel brakes for vehicles, in which a piston is formed with an annular groove for a sealing ring and in which two circumferentially-spaced ports are provided, passages lead from the groove to each port so that liquid is caused to flow through the groove to remove air during a bleeding operation. The brake shown in Fig. 1 is of the kind comprising a.pair of shoes 18, 20, both of which act as leading shoes with either direction of rotation of the drum and applied by a pair of cylinders 16, each formed with a flange 28 as described in Specification 625,479 for bolting to a fixed flange and to a spider 12 provided with arms 36 for laterally positioning the shoes and with arms 90 for preventing the pistons 30 from leaving the cylinders in the event of breakage of the drum. The end of each piston 30, 32 normally abuts on and projects within a flange 53 formed in the cylinder, and which takes the anchoring torque of the shoes. Diametrically opposite radial ports 50, 52 through the cylinder wall and the flange 53 are connected by axial passages 64, 66, in the cylinder wall to annular grooves 62 formed in the pistons to receive sealing rings. In the case of the cylinder shown, port 50 is connected by a supply pipe 60 to one of the ports of the other cylinder and the port 52 is a bleed port normally closed by a plug 56. Thus, during the bleeding operation, since the end faces of the pistons are close together liquid is forced to flow through the grooves 62 by way of the axial passages 64, 66. A cylinder with a single piston is also shown, the posts 50, 52 being disposed near the base of the cylinder chamber. The piston of this cylinder is shown as engaging one end of one shoe of a brake, the adjacent end of the other shoe abutting on the end of the cylinder which is bolted to the spider 12. The piston 30 is provided with a shoe-adjusting screw.
Patent GB-1219366-A (GB)
Title: Seedling transplanting device
Filed: 1968-02-23
Abstract: 1,219,366. Planting. NIPPON TENSAI SEITO K.K. and CIRCLE TETSUKOJO K.K. 23 Feb., 1968 [25 Feb., 1967; 6 June, 1967; 4 Aug., 1967; 5 Aug., 1967; 28 Sept., 1967; 28 Oct., 1967; 7 Nov., 1967], No. 9035/68. Heading A1D. [Also in Division B8] A device for transplanting seedlings contained in paper containers joined together by water soluble starch, comprises a conveyer 6, Fig. 1, for a group of containers, a second conveyer 30, at right angles to the first, for a single row of containers, and devices for separating a row from the group and a single container from a row. The group of containers is carried on conveyer 6 with row-positioning device 13, consisting of rods 14 which rise and fall about axis 19, holding the rows of containers in alignment. The conveyer 6 moves forward intermittently by means of a ratchet wheel 8, driven by driving wheel 9 on which pin 9<SP>1</SP> is eccentrically mounted. As wheel 9 turns and the pin 9<SP>1</SP> leaves the top-most position, the device 13 turns clockwise and withdraws from the front of the containers; as pin 9<SP>1</SP> approaches the bottom position, rods 21 activated via a swing rod 23 push the containers on to the row conveyer 30. As the pin 9<SP>1</SP> ascends, the device 13 returns to a horizontal position, a pawl 12 turns the ratchet wheel 8 and the cycle starts again. Conveyer 30 driven by chain wheel 3<SP>1</SP> moves fast enough to slippingly shift the containers until stopper 32 is reached. A separating wheel 35 with blades 36 pushes each container through a gap between the stopper 32 and carriage 31 into guide tube 37. In a modification, Fig. 4 (not shown), the second row of containers on the conveyer 6 is held down by a rod (51) while rods (14) are raised by means of links (44), (45), (54) thereby permitting the foremost row of containers to be separated. The containers may be separated by the combined action of a holding board (64), blades (68) and closing board (67), Fig. 5 (not shown); alternatively, the holding board and impeller blades are replaced by spongecovered wheels (73), (72), Fig. 6 (not shown). The transplanting device may be provided with a means to prevent the seedlings from falling on their sides: a hole is provided in the bottom of a levelling plate (108), Fig. 7 (not shown), a guide tube (37) is adjusted so that the seedling falls through the hole and into the groove cut by a trench opener (109 and soil is heaped round the seedling by soil banking wheels (110).
Patent GB-837550-A (GB)
Title: Microwave mixer systems
IPC: H03D9/06
Filed: 1956-03-23
Abstract: 837,550. Waveguide directional couplers; transmission line networks. SPERRY RAND CORPORATION. March 23, 1956 [March 28, 1955], No. 9092/56. Class 40 (8). [Also in Group XL (c)] In a microwave mixer system the two input signals are fed to the mixer element through a hybrid waveguide system providing two paths of different length so as to provide a more efficient noise-free arrangement (see Group XL (c)). In the Fig. 4 arrangement three waveguide hybrids 50, 52, 54 are used, each comprising a slot in a common wall with opposed protrusions 68, 69 (Fig. 5) and thickened side walls 70, 72. Hybrid 52 is coupled to two adjustable short-circuited lines 110, 112 to form a phase shifter of the type described in Specification 817,569. The plungers 116, 118 are separated from the walls of the guides to provide a wave-trap type of short-circuit. In an alternative arrangement (Fig. 8) rat-race type hybrids in strip-line form are used. The adjustable phase-shifter in this arrangement consists of a laterally adjustable section 194 of the dielectric base. A vane-type attenuator 201 is also provided.
Patent GB-383858-A (GB)
Title: Improvements in and relating to electric discharge apparatus
IPC: H01J21/02
Filed: 1932-03-30
Abstract: 383,858. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Charlton, E. E. ; 6, Phoenix Avenue, and Relyea, W. I. ; 301, Campbell Avenue, both in Schenectady, New York, U.S.A.) March 30, 1932, No. 9151. Convention date, March 30, 1931. [Class 39 (i).] A cathode, particularly for high-voltage rectifiers, consists of a compact helical filament 5 supported inside a molybdenum, tantalum, or tungsten anode 2 by a strong helical member 9 of coarse pitch, which acts as a current lead for the cathode and shields it from the electrostatic attraction of the anode. A weight 11 removes the resonance vibration frequency of the filament from the frequency of the exciting current, ordinarily 60 cycles.
Patent GB-767916-A (GB)
Title: An improved vehicle wheel
IPC: B60B9/26
Filed: 1955-03-29
Abstract: 767,916. Vehicle wheels. AUTO UNION GES. March 29, 1955 [March 30, 1954], No. 9180/55. Classes 144 (1) and 144 (2). An integral wheel hub and brake drum 1, 2 has three or more spokes 4 permanently secured thereto to project tangentially therefrom all in the same sense and to support detachably at their outer ends a rim 7, the spokes being rigid against bending out of the wheel plane, but resiliently bendable within the wheel plane. As shown, the spokes 4 are each of flat steel bar with apertures 5 and sinuous edges 6 at one end for anchorage within the hub casting, and with the other end bent to engage the underside of the wheel rim. The bent end has a slot 8, opening outboardly of the wheel, to receive a bolt 11 passing radially through the rim base and co-operating with a nut 14. The spoke end and nut 14 have mating spherical surfaces 9, Fig. 4, to resist opening of the slot 8 under torque stresses, and the bolt 11 is held captive and against rotation in the rim by a circlip 13 and a squared shank 12 respectively. To provide a resilient engagement with the nut 14, the spoke end has an annular corrugation 15 surounding the spherical part 9. A cover disc 17 may have snap engagement into an annular recess 19 in the rim, or alternatively it may be secured by snap engagement of extensions 21 thereof with heads 22 on the spoke securing nuts 14. The hub and brake drum may be cast of light alloy and the bending of the spokes allows for the difference in heat expansion.
Patent GB-268829-A (GB)
Title: An automatic rotary machine for washing bottles
IPC: B08B9/36
Filed: 1927-04-04
Abstract: 268,829. Courby, T. April 3, 1926, [Convention date]. Bottles, washing.- A machine for washing bottles, having means for washing and brushing the bottles internally and externally, comprises a hollow vertical shaft X mounted to rotate in bearings in a frame comprising a circular base Y, three vertical standards, and a spider Z. The machine is adapted to hold two bottles at a time, the bottles being mounted between two horizontal discs secured to rotate with the shaft X. Each bottle is held between an annular brush A and a hollow head B forming the end of a slidably and resiliently mounted tube C, and means are provided for lowering the tube C to permit ejection of the bottle. Water is supplied to the upper end of the shaft X and is distributed by flexible pipes, one for each bottle-holder, each pipe being divided into two branches, a branch K directing water to the outside of the bottle and a branch L leading to a hollow stem R which carries a brush Q. The supply of water is controlled, during the rotation of the shaft X, by means of projections on two spokes of the spider Z, the projections being adapted to engage radial projections on a star-shaped portion of a cock c provided on each flexible pipe. The exterior of the bottles is cleaned by the annular brush A and by brushes on vertical rods N. A part-circular rack P is provided on the machine frame for engagement with gearing whereby the rods N and the tubes C revolve on their axes during the rotation of the shaft X. Each brush stem R carries a pinion m adapted to engage a toothed disc m<2>. The brush Q is reciprocated to and from the interior of a bottle by means comprising a cam surface T engaged by a roller on a member n which is secured to the stem R and is provided with grooved sheaves co-operating with vertical guide bars attached to a bearing of the spindle R. Passages are formed in the member n to convey water from the pipe L to the stem R.
Patent GB-250592-A (GB)
IPC: F02M1/00
Filed: 1926-04-07
Abstract: 250,592. Mirlesse, L. April 7, 1925, [Convention date]. Spray carburettors having a slow speed nozzle and a main nozzle are provided with a single float chamber containing hydrocarbons of different densities, the upper part of the float chamber which contains the light hydrocarbon being connected to the slow speed nozzle by a pipe which may be provided with a cock, the lower part of the chamber containing the heavy hydrocarbon being connected only to the main nozzle. The float chamber 1, Fig. 3, is fed from two tanks containing the light and heavy fuels and a pipe 10 with cock 11 delivers the light fuel, in the upper part of the chamber, to the slow-running conduit 6. The main nozzle is fed with heavy fuel from the lower part of the float chamber through a passage 4. In a modification, the pipe 10 is of a different shape and the cock may be actuated from the accelerator pedal in the case of a motor vehicle, or by a governor in the case of motor compressors or electricity generating groups. The Specification as open to inspection under Sect. 91 (3) (a) describes also a carburettor, Fig. 1 (Cancelled), comprising a float chamber 1 supplying a main sprayer 5 and a slow-running sprayer 6 through a passage 4. A light fuel tank 8 is connected with the slow-running fuel conduit by a pipe 7 provided with a cock 9 which may be actuated in the same manner as the cock 11 referred to above. By keeping the cock constantly open, a mixture of the fuels may be supplied. It describes also a modification in which a pipe delivers the light fuel to the upper part of a vaporizer for the heavy fuel and thence directly into the intake conduit of the engine. This subject-matter does not appear in the Specification as accepted.
Patent GB-328744-A (GB)
Title: Improvements in or relating to mechanism for the opening and closing of sliding windows in vehicles
IPC: B61D25/00
Filed: 1929-03-21
Abstract: 328,744. Droll, A., and Vereinigte Westdeutsche Waggonfabriken Akt.- Ges. March 21, 1929. Sliding vehicle-window opening and closing apparatus.-The actuating means of two or more vehicle windows are situated near together so as to minimize disturbance of passengers &c. when operating the windows. The invention is illustrated as applied to a restaurant car in which the actuating shafts k for pairs of windows are housed one above the other in the back rests between two seats and adapted to be rotated by a detachable handle by an attendant in the gangway d. The windows are balanced by springs and lever and raised &c. by a chain with a turnbuckle tensioning device m.
Patent GB-673545-A (GB)
Title: Apparatus for the recovery of volatile constituents in liquids containing fractions having different boiling points
IPC: B01D1/00
Filed: 1949-04-07
Abstract: <PICT:0673545/III/1> <PICT:0673545/III/2> Liquids are evaporated by passing the liquid through two heat exchangers connected in series and then introducing the heated liquid into a film evaporator.  The first heat exchanger comprises three concentric tubes wherein the feed-liquid flows through the inner tube, the hot concentrated liquid from the evaporator flows through the annular passage between the inner and the intermediate tubes, and cooling water flows through the annular passage between the intermediate and outer tubes.  The evaporation, which is preferably carried out under reduced pressure, is particularly useful in the concentration of fruit juices in the temperature-range of 170 DEG  to 190 DEG F.  Liquid-to-be-evaporated is pumped via pipe 21 into the inlet 25 of heat- <PICT:0673545/III/3> exchanger 22 which comprises, Fig. 6, three sections of pipes 23 connected by bends 24, three tubes 28 concentric with pipes 23 and provided with headers 27, and three more tubes 32 connected by headers 29 disposed between pipes 23 and tubes 28.  The liquid-to-be-evaporated flows through pipes 23.  Unevaporated liquid leaves evaporator 11 through pipe 54, enters the heat-exchanger at inlet 30, flows through the annular passages between pipes 23 and 32, and leaves the heat-exchanger at outlet 31.  Cooling water supplied through pipe 33, is passed through the outer annular passages of heat-exchanger 22.  The partially-heated liquid leaving heat-exchanger 22 through outlet 26 is passed to heat-exchanger 35, Fig. 4, which is disposed behind heat-exchanger 22 in Fig. 1. Heat-exchanger 35 is also a system of three concentric pipes.  The innermost pipes are connected by bend 37, and the others by headers 40 and 38.  The liquid-to-be-evaporated flows through the inner annular passage of heat-exchanger 35; while hot water from tank 19 is pumped countercurrently to said liquid via pipes 47, 48 through the innermost pipe and through the outer annular passage of the heat-exchanger.  The water leaving heat-exchanger 35 through outlets 51, 52, is returned to tank 19 via pipe 53.  The heated liquid, which preferably only remains in heat-exchanger 35 for 3 to 8 seconds, is passed to evaporator 11 via pipe 44.  The vapours from the evaporator are condensed in condenser 15, and the condensate is collected in vessel 17.  The evaporator may be of the type disclosed in Specifications 595,597 and 673,543.  Specification 673,544 also is referred to.
Patent GB-153839-A (GB)
Title: Improved construction of artificial arm
IPC: A61F2/58
Filed: 1920-04-01
Abstract: 153,839. Knight, J. S., and Tipping, H. April 1, 1920. Limbs, artificial.-The upper arm and forearm are made from side strips 5, 1 respectively, the upper arm having half bands 6 in opposite directions with regard to the side strips. The strips 1 are connected at the end by a ring 2 for attachment of a hand substitute. The elbow joint is made by conical or hemispherical disks 4, 7 and central pins 9. One of the disks 7 is pierced with a number of holes 8 and its fellow disk 4 is provided with a single hole above which is a housing 10 (shown enlarged in Fig. 8), for a locking pin 11 having a groove 12. The pin is normal to the disk, and thus inclined to the axis of the joint. The pin is operated by a cam 14 on a lever 13 which takes into the slot 12. The lever is operated by a cord attached at the end 15. The lever can be locked, with the pin out of action, by the plate 17 fitted with a bayonet slot, such plate being operated by the free hand of the person wearing the arm. The bucket 21 of the forearm carries pins 22 which work in slots in plates on the strips 1, so that the stump can give motion to the forearm. In a modification, four locking-pins are used with a common cam, as shown in Fig. 9, for operating them.
Patent GB-686091-A (GB)
Title: Improvements in or relating to testing apparatus for detectors or indicators of inflammable vapours or gases
IPC: G01N7/12
Filed: 1947-04-11
Abstract: <PICT:0686091/III/1> In apparatus of the diffusion type for the detection or indication of inflammable gases or vapours, a device for ascertaining at what concentration of gas the apparatus is set to operate comprises a stand 1 on the vertical wall 2 of which is mounted a bracket 3 provided with electrical contacts 4 for the filament and warning lamp circuit of the detector apparatus and to which bracket the plate of the detector carrying the filament, porous vessel, diaphragm and warning lamp, is secured, a vacuum gauge 6 also being mounted on the vertical wall and adapted to be connected by means of a flexible tube 7 to the porous vessel.  The gauge 6 is provided with a scale giving gas percentages calibrated in accordance with the vacuum reading of the gauge.
Patent GB-1274957-A (GB)
Title: Improvements in or relating to telephone line loop-detecting circuits
Inventor: GILBERT NORMAN DOUGLAS
IPC: H04M3/22
Filed: 1970-02-27
Abstract: 1,274,957. Automatic exchange systems. GENERAL ELECTRIC CO. Ltd. 19 April, 1971 [27 Feb., 1970], No. 9639/70. Addition to 1,201,093. Heading H4K. The line loop monitoring circuit of the parent invention is modified by making one of the inputs to the differential amplifier capacitive whereby the response times of the amplifier in respect of looping or unlooping of the line are substantially the same. In the unlooped condition TR1 is on while TR2 is off. When the line is looped TR1 turns off almost at once but TR2 remains off until Cl has charged via the high time constant resistors R6, R9. When the line is subsequently unlooped e.g. during dialling, TR1 turns on but TR2 does not turn-off until C1 has been discharged and then recharged in the opposite direction via low time constant resistors R2, R8, R5, R7. The different time constants in effect compensate for the inductance of the line which is of more consequence during unlooping than during looping. The circuit is suitable for use in systems where it is necessary to convert from Strowger to PCM signalling which is the implication of the 2/4 wire hybrid shown in the drawing.