baber/WOPTO huggingface dataset:
Patent GB-660694-A (GB)
Title: Improvements in or relating to communal radio television and like receiving systems
Inventor: MONTGOMERY WILLIAM ALAN
IPC: H04N7/173
Filed: 1949-03-11
Abstract: 660,694. Distributing music &c. KOLSTER, BRANDES, Ltd. March 10, 1950 [March 11, 1949], No. 6714/49. Class 40 (iv). In a system for receiving a television programme and distributing it over a main cable to a plurality of stations, separate sub-carriers, are modulated with the audio, video and synchronizing signals, and the line and frame pulses comprising the synchronizing signals are sent as pulses of opposite sign. The sound signals and video signals are selected from the incoming signals on the aerial 1 by the R.F. amplifying stages 4 and 5, respectively, and after modulating separate sub-carriers, are applied to the line over band-pass networks 11 and 19, together with the synchronizing signals which have been amplitude-separated from the received video signal by the unit 15. At the subscriber's station the separate signals are selected by band-pass filters 43, 44 and 45, and detected in the diodes 47, 56, 62 and 65, the last two of which are poled to select the line and frame pulses respectively. Reference is also made to the allocation of sufficient band-width for the distribution of a plurality of ordinary radio programmes.
Patent GB-1003899-A (GB)
Title: Power operated hatch cover assembly
IPC: B63B19/197
Filed: 1964-02-18
Abstract: 1,003,899. Power-operated hinges for hatch covers. FULLER CO. Feb. 18,1964 [March 18, 1963], No. 6750/64. Headings E2F and E2M. [Also in Division F2] A hatchway cover comprises a pair of panels pivotally connected at their adjacent sides by a cylinder 36 secured to one panel by the bracket 92, Fig. 5 (not shown), a pair of pistons 71 slidably opposed within the cylinder and secured to a pair of transmission sleeves 77 each provided on its inner surface with helical guiding means 81 which engages with the corresponding splines 80 on an extended actuated rod 69, Fig. 3, whereby when pressurized fluid is applied through the inlet port 42, the pistons 71 are displaced axially in opposing directions to cause rotation of the rods 69 which are connected by their ends 96 to the other panel. The transmission sleeves 77 have a splined configuration 79 on their outer surfaces each coacting with a guiding means 78<SP>1</SP> on the inner surface of the cylinder. The hubs 94 splined to the extended portion of the rods, transmit the required torque to both panels through the mounting plate 99, Fig. 5 (not shown). The hatchway is closed by applying pressurized fluid through the ports 55, port 42 remaining open, causing the pistons 71 to move towards each other and effect the rotation of the rods 69 in the opposite direction. An externally threaded gland 62 serves as a bearing for the rod 69 and is provided with seals which are protected by a dust exclusion seal 70. Outward axial movement of the rod 69 is limited by the abutment of shoulders 87, 97, Fig. 4 (not shown).
Patent GB-430841-A (GB)
Title: Improvements in or relating to wireless receiving systems
IPC: H03G3/22
Filed: 1934-03-02
Abstract: 430,841. Valve circuits for wireless reception. COSSOR, Ltd., A. C., and REYNER, J. H., Highbury Grove, London. March 2, 1934, No. 6755. [Class 40 (v)] A plurality of separate D.C. voltages are created by a detector system and used separately to control the gain of each of a number of preceding carrier frequency valve amplifiers or groups of valves. As shown the two diode rectifiers in the valve VR are fed through condensers C1, C2 with high frequency energy from the secondary and primary respectively of the transformer T feeding the detectoramplifier VDA. Their load resistances R1, R2 produce D.C. voltages controlling the gain of different valves or valve groups over the resistances F1, F2 respectively. Different delay biases may be applied to the diode anodes by connecting them through their load resistances to different points negative to the cathode.
Patent GB-102435-A (GB)
Title: Improvements in Flexible Joints for Fluid-pressure Pipes.
Inventor: CROSS WILLIAM
IPC: F16L27/06
Filed: 1916-05-12
Abstract: 102,435. Cross, W., (International Couplers Co.). May 12, 1916. Ball - and - socket joints. - In a ball- and-socket joint between two lengths of fluid-pressure piping, the ball member is formed of two substantially hemispherical sections 7, 10 having an interposed packing 13 and arranged in slidable relation by providing one section, for example 7, with a sleeve 9 fitting within the concentric bore of the other section 10. The socket comprises an internally machined hemisphere 18 having a threaded flange 26, which extends beyond tho equatorial plane of the ball and is engaged by a machined annular ring 20 adapted to retain the ball in the socket. A screw 22, with a machined inner end engaging holes in the flange 26 and ring 20, serves both to lock the ring in position and to permit access to the space for the packing, either for the purpose of introducing a pulverized packing or for lubricating a leather or fibre packing. The face 8 of the section 7 is bevelled at 11 in order to give the packing an increased bearing-surface against the socket. The lengths of piping are connected to the body portions 5, 15 respectively of the ball and socket, and, when the joint has been made, the pressure of the fluid within the joint acting upon the section 10 of the ball, which may be bevelled at 12 to expose a greater surface, causes the packing 13 to be compressed against the socket and a fluidtight joint to be maintained.
Patent GB-342560-A (GB)
Title: Improvements relating to taps or cocks
IPC: F16K3/24
Filed: 1930-03-01
Abstract: 342,560. Stop valves ; components. FRANKOVSZKY, R., 16, Hanselmannstrasse, Munich, Germany, and WAINWRIGHT, H. H., 7, Grange Road, Dudley, Worcester. March 1, 1930, No. 6861. [Class 135.] Piston valves ; materials, special.-A tap or cock, more particularly for petrol, consists of a sliding cylindrical plug of cork or other resilient material compressed between screwed parts b, e and inserted through the open end of the casing a, as shown. The plug is operated by the finger piece f and is adapted to close either the inlet passage i or the outlet passage j, as shown, but not both. Detachment of the plug from the casing and rotation are prevented by the end of a screw h engaging a longitudinal groove in the part e. Adjustment of the resilient plug is effected by a screw-driver engaged with the slotted outer end of the spindle b, the adjustment being secured by a lock-nut g.
Patent GB-1522774-A (GB)
Title: Vehicles for the storage and transportation of objects
IPC: B62B5/00
Filed: 1977-02-18
Abstract: 1522774 Convertible hand-carts A HANNEVIG 18 Feb 1977 06883/77 Heading B7B To convert a shelf-containing hand-cart into a bin-type cart suitable for dirty linen, shelves 16, 17 are slid and pivoted into vertical positions in which they define a longitudinal side wall opposite to the wall 14 of the cart. The shelves may also be moved into inactive positions in which they lean against the wall 14.
Patent GB-619489-A (GB)
Title: Improvements in or relating to haemoglobin solutions
IPC: C07K14/805
Filed: 1945-03-20
Abstract: A h moglobin solution comprising the bloodcell walls is prepared by freezing and thawing the blood cells, the freezing being effected at so rapid a rate and at a temperature so low that the blood cell structure is present in a state of dissolution in the thawed liquid. The freezing may be effected by immersing a 30 c.c. test tube containing the blood cells in a bath of kerosene and dry ice having a temperature of - 85 DEG  F. for 2 to 3 minutes. The blood cells for the process may be obtained by drawing blood into a donor bottle with exclusion of air, adding sodium citrate and centrifuging to separate plasma or serum from the blood cells. The h moglobin solution may be spun to form synthetic sutures by mixing it with sodium solution and spinning the mixed solution through a spinning nozzle into a precipitant.ALSO:A haemoglobin solution comprising the blood-cell walls is prepared by freezing and thawing the blood cells, the freezing being effected at so rapid a rate and at a temperature so low that the blood cell structure is present in a state of dissolution in the thawed liquid.  The freezing may be effected by immersing a 30 c.c. test tube containing the blood cells in bath of kerosene and dry ice having a temperature of -85 DEG  F. for two to three minutes. The blood cells for the process may be obtained by drawing blood into a donor bottle with exclusion of air, adding sodium citrate and centrifuging to separate plasma or serum from the blood cells. The haemoglobin solution, may be injected intravenously into the blood stream, applied to wounds or employed for impregnating sutures, particularly those composed of animal fibre such as catgut. The haemoglobin solution may also be spun to form synthetic sutures by mixing it with sodium sulphide solution and spinning the mixed solution through a spinning nozzle into a precipitant.
Patent GB-687702-A (GB)
Title: Improvements in or relating to reversible rotary air motors
IPC: F01C1/16
Filed: 1951-03-27
Abstract: 687,702. Friction clutches. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. March 27, 1951 [Aug. 4, 1949], No. 7024/51. Class 80 (ii). [Also in Group XXVI] A compressed-air engine of the double-helical gear type with rotors 2, 3, is provided with gears 10, 11 on stub shafts 6, 7, the gears meshing with gear 28 on a driven shaft 29, only one of the gears 10, 11 acting as a driving gear at one time, the other rotating freely. A clutch 30 couples an extension 12 or 13 of gears 10, 11, to drive its relevant shaft 6 or 7, when a collar 19 is caused to slide axially and actuate a bell-crank lever 20. Movement of the inner plates of one of the clutches in one direction causes the other set of inner plates to move in the opposite direction. The collars 18, 19 are moved by means of forks 21 on bell-crank levers 21, pivoted at 22 each with a pin 24 carried in a slot in a segment 26. The segments are fixed to a control shaft 25 moved by levers 27. Each segment groove has a part circular portion concentric with the shaft 25, and a spiral portion. When the pin 24 engages in the circular arc, no movement of the segment is produced when the shaft is rotated by its lever 27. Continued movement of the shaft 25 causes a pin 24 to enter the spiral portion of the groove to effect movement of a collar and cause the engagement of a clutch. The curved grooves in the two segments are arranged in a mirror-image relation. When the control apparatus is operated to reverse the direction of the engine, the rate of rotation is first diminished by reducing or shutting off the air supply and then a lever 27 is actuated to reverse the clutches.
Patent GB-1082722-A (GB)
Title: Apparatus for producing mechanical movements
IPC: G05B19/40
Filed: 1963-02-21
Abstract: 1,082,722. Programmed control of machine  tools. MOLINS MACHINE CO. Ltd. and D.T.N. WILLIAMSON. Feb. 18, 1964 [Feb. 21, 1963], No. 7034/63. Heading G3N. [Also in Divisions G4 and H2] Apparatus for producing mechanical movements under the control of a plurality of electric signals comprises a separate stepping motor, of the type which produces equal angular movements of a shaft in response to successive electric pulses, arranged to respond to each of the signals and a differential gearing assembly connected to receive mechanical movements generated by the stepping motors and to move an output member in accordance with the algebraic sum of these movements. In an embodiment for the control of a machine tool the electric signals are derived from tracks on a magnetic tape comprising three data tracks having a variable pulse repetition frequency and a constant rate reference track. The difference between the number of pulses recorded in a data track and the number of pulses recorded in the reference track represent in magnitude and sense a movement the tool is required to make along the corresponding movement axis while the selected length of tape is passing the reading heads. It is stated that it is preferred to provide an arrangement for checking that the stepping motors respond correctly to the signals. The checking arrangement comprises a photo-electric cell responsive to a sectored disc driven by a stepping motor and the derived pulses are used to operate a counter in opposite sense to an input from the pulses to the stepping motors. A predetermined count causes an alarm or control operation to be initiated. Alternatively, a checking signal may be computed and recorded in a further track on the tape. Alternatively, or additionally, for signals that are not subject to sudden change, the motor input signals are fed as trigger signals to a flywheel oscillator the output pulses of which is compared in a counter with the motor input pulses to detect missing stepping pulses. It is stated that a number of interconnected differential gearings may be employed and that the torsional vibrations may be absorbed by the driven shaft or by inclusion of a vibration damping coupling.
Patent GB-813714-A (GB)
Title: Improvements in pneumatic gaging and control apparatus
IPC: G01B13/06
Filed: 1957-03-04
Abstract: 813,714. Linear-dimension gauges. SHEFFIELD CORPORATION. March 4, 1957 [March 13, 1956], No. 7061/57. Class 106 (2). [Also in Group XXXVII] Pneumatic gauging and controlling apparatus comprises an air flow passage 20 which is connected in series to a source of compressed air, a rate of flow type indicator 24, 25 and a gauge head 12 of the air leakage type, a pressure responsive switch-actuating unit 30 (see Group XXXVII) being in communication with the passage 20 between a restriction 22 and the gauge head 12 and the restriction 22 being constructed to produce pressure variations during gauging which will operate the control unit 30 but which will not interfere with the response of the indicator 25. A series of switch units 30 may be used to obtain signals at different dimensions of the workpiece 17 and the signals may be applied for machine control or for sorting.
Patent GB-228383-A (GB)
Title: Improvements in tunnel ovens and kilns
IPC: F27B9/02
Filed: 1924-03-20
Abstract: 228,383. Koppers Coke Oven Co., Ltd., (Koppers, H.). March 20, 1924. Tunnel kilns. - A tunnel oven or kiln, more particularly for ceramic goods, shown diagrammatically in Fig 2, is provided with baffles 19 extending across the floor of the cooling zone m to deflect repeatedly the cold air towards the roof, and with baffles 17 depending from the roof and extending across the preheating zone o, whereby the heated air or gas for preheating the green goods is repeatedly deflected towards the floor of the tunnel. The arrows a indicate the direction of travel of the goods and the arrows p indicate the direction of flow of air or gas for cooling and preheating. Fig. 3 shows a section and Fig. 4 a plan of a twin tunnel oven with the cooling zone of one tunnel side by side with the preheating zone of the other tunnel and communicating with each other by an air-port 20 near the burning zone. Blowers 22 circulate the air. The goods 10 in trucks 11 enter the tunnels 12, 12<1> from opposite ends, pass through a preheating zone to a burning zone, and thence to the corresponding cooling zone 14, 14<1>. The burning chamber can be closed at its ends by gates 15, 16 and is heated in the usual way by lateral and transverse flues, the products of combustion being passed through a singlechamber or two-chamber regenerator for heating the air for combustion, and also, if excess heat is left, air for preheating the green goods. The roof of the preheating chamber, Fig. 3, has apertures for vertically slidable baffles 17 lowered to slightly above the floors of the truck to deflect the air as shown by the arrow line on the left. In the cooling zone, baffles 19, Fig. 3, have their bottom edges level with the floors of the trucks and with clearance at the top so that the cold air is repeatedly deflected up by the floors of the trucks and the baffles, as shown by the arrow line on the right. The baffles 19 may be inserted from one side of the tunnel through slide-ways. Alternatively, a single entrance for inserting baffles to rest on and travel with the trucks may be provided near the end of the burning chamber. The intervals between the baffles may decrease towards the colder regions of the oven.
Patent GB-540420-A (GB)
Title: Improvements in self-clamping jacks
IPC: B66F3/02
Filed: 1940-04-20
Abstract: 540,420. Lifting-jacks. SOC. ANON. A. CITROEN. April 20, 1940, No. 7180. Convention date, May 20, 1939. [Class 78 (iii)] A friction-ratchet lifting-jack comprises a vertical column 1 with apertures 9 forming a rack, a fork 3 sliding on the column and carrying rotatable spindles 2a, 2b at slightly different levels, adapted to press against opposite sides of the column, and an operating lever 11 formed with a toothed segment 10 for engagement with the rack. A spindle 12 carried by the lever 11 engages slots in links 5, 8 connected to the spindles 2a, 2b, so that each link has longitudinal play on the spindle. 12. As shown in Figs. 2 and 3, the column 1 is of I-section and its edges are engaged by notches 1a, 1b in the spindles 2a; 2b. A wedging spring 4 coiled on the spindle 2a has one end engaging a hole 3 in the fork 3 and the other end bearing against the web of the column. During lifting, the teeth 10 are engaged with the rack 9 and the lever 11 acts through the links 5 on the spindle 2a. For lowering, the lever 11 is brought into the dotted position, Fig. 2, and acts through the links 8 on the spindle 2b. To maintain the links 5, 8 normally in the upper position, the spindle 2b may have rounded projecting ends, past which the links 5 are forced when moving to the lower position ; or springs 16 in bores in the links 8 hold the spindle 12 at the ends of the slots in the links. In use, a curved member 23 secured to the load is engaged by the fork 3. The foot of the column 1, Figs. 5 and 6, is divided into branches 17 rigidly connected by a crossmember 18 of channel shape, resting on a resilient base 19. Half-rings 22 passing over the member 18 and hooked in the base 19 form pivotal joints allowing the column to rock in the angle of the groove 21. In a modification, the column is formed from sheet metal.
Patent GB-900275-A (GB)
Title: Seed spacing drills
Inventor: HANBURY LESLIE FRANCIS
IPC: A01C7/04
Filed: 1960-03-01
Abstract: 900,275. Seed sowing machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 20, 1961 [March 1, 1960], No. 7302/60. Class 6(1). A seed sowing machine comprises an endless band 17 provided with holes which picks up seed delivered from a hopper 15 into a chamber 34 and passes over a base member 26 provided with at least one suction aperture, the member 26 acting to retain the seeds in the holes in the band until they pass the member 26 when they drop out of the holes on to the ground. A roller 36 retains the seeds in the chamber 34. The member 26 is connected to a source of suction and may be connected to a venturi attachment on the exhaust pipe of the tractor.
Patent GB-491731-A (GB)
Title: Improvements in or relating to cooling apparatus for viscous liquids
IPC: F28F27/00
Filed: 1937-03-12
Abstract: 491,731. Radiators for aircraft engines &c. ROBERTSON, J. H. March 12, 1937, No. 7311. [Class 29] In apparatus for cooling oil and other viscous liquids, having pressure-controlled shutters, deflectors, or valves, to regulate the flow of cooling medium, a thermostat is provided to govern the operation of the pressure-controlled means so as to prevent complete closure of the shutters or the like, and so ensure a limited supply of cooling medium, when the viscous liquid reaches a safe temperature for normal flow. In a cooler for the lubricating oil of an aircraft engine, shutters b, Fig. 1, are detachably mounted in front of a cooling block a comprising horizontal tubes a<1> secured to header plates a<2>, the axes of rotation of the shutters being parallel to the tubes a<1>. The shutters are linked in pairs by levers b<1> which are connected to a central articulated rod b2. A spring acts in the sense of keeping the shutters open, whilst a drive to open the shutters is connected with one of them by a rod f to the piston rod g<1>, Fig. 2, of a piston g operated by oil pressure. The high pressure side of the piston g has an oil inlet j, and a relief valve k, which opens during the initial working of the engine when the pressure is high due to the high viscosity of the oil. The oil which flows through the valve k passes through a pipe o to an air heating device p, Fig. 1, mounted immediately behind the shutters, and comprising a number of horizontal tubes p. The viscosity and pressure of the oil may thus be reduced quickly to bring about the closing of the relief valve k. When the temperature of the oil reaches a certain value, say 65‹ C., a lever l operated by a thermostat co-operates with a collar g3 on the piston rod g<1> to prevent the complete closing of the shutters. The vapour pressure of a fluid contained in a boiler m is used to operate a bellows n connected by a link n<1> to the lever l. In a modification, the initial heating of the oil is effected by hot air which has passed over the exhaust pipe, means being provided for cutting off the hot air supply when the oil temperature reaches a safe upper limit.
Patent GB-694033-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: TEMPERLEY JOHN
IPC: D21F2/00
Filed: 1950-03-24
Abstract: 694,033. Couching webs from paper-making machines. WALMSLEYS (BURY), Ltd. March 19, 1951 [March 24, 1950], No. 7373/50. Class 96. A wet web 23 from the wire-cloth 11 of a Fourdrinier paper-making machine is transferred to a wet press felt 22 without substantial change of direction and with the aid of an intermediate felt or wire-cloth 14 guided about rolls 15, 17, 16. The roll 12 may be a suction couch roll, and rolls 13 and 16 may have grooved surfaces and may coact with airblowing boxes 19, 21 which facilitate transfer of the web to and from the intermediate belt 14 respectively. Specification 631,510 is referred to.
Patent GB-683636-A (GB)
Title: Improvements in, or relating to, mounting and unscrewing appliances for use in operations on tapped articles, such as nuts
IPC: B23G1/18
Filed: 1950-03-24
Abstract: 683,636. Work-holders. HIPKISS, R. March 27, 1951 [March 24, 1950], No. 7375/50. Class 83 (iii). A mounting and unscrewing device for use in operations on tapped articles comprises a nose-piece detachably secured to the end of a rotatable driving-shaft and a sleeve rotatably and slidably disposed around the nose-piece inwardly of a threaded projection provided on a stud which is screw-connected to a bore formed in the nose-piece, the stud being engaged by a tapped article and mechanism being provided for rotating the sleeve relatively to the nosepiece, and for sliding the sleeve into engagement with the article on the threaded stud projection to enable the article to be removed from the projection while the shaft and nose are rotating. An adaptor 5 is screwed to the main driving spindle 6 of a lathe &c. and is screwed at its forward end to take the end 11 of a stud member or mandrel 12. The latter is coned at 13 to bind against a seating in the adaptor when tightened by a spanner applied to flats 15. An integral screwed extension 16 on the stud member forms the support for a nut or other tapped article which is to be worked upon such as by trueing and/or countersinking the end face. A bush 2 surrounds the adaptor and supports a slidable and rotatable sleeve 1 toothed over part of its periphery to engage a gear-wheel 19. The latter is driven by gears 22, 23, from the main spindle 7 so that the sleeve rotates at three times the speed of the driving spindle. The front end of the sleeve 1 carries a detachable member 18 shaped to engage the nut or other work so that when the sleeve is moved to the right by a hand lever 4, the work is engaged and unscrewed from the support 16.