baber/WOPTO huggingface dataset:
Patent GB-765021-A (GB)
Title: Improvements in or relating to gas turbines
Inventor: JR BENNETT STEELE SAVIN
IPC: F02C7/32
Filed: 1955-03-04
Abstract: 765,021. Gas turbine plant; elastic-fluid turbines. UNITED AIRCRAFT CORPORATION. March 4, 1955, No. 6526/55. Class 110 (3). [Also in Group XXXIV] In a gas turbine plant comprising a lowpressure, multi-stage axial-flow compressor and a propeller driven by one turbine section and a like high-pressure compressor driven by a highpressure turbine section, the high-pressure compressor 152 is supported by a bearing 170 which is carried by a housing 172 positioned by struts 174 through which accessory drive-shafts 176 extend. Cooling air from the compressor is fed through holes 252 into a space 253 defined by the wall 216 of the combustion chamber, a member 184 and a diaphragm 254 which may have nozzles 256 for directing the air against the turbine disc. Bearings 170, 180 are enclosed within the housing 172, a ring 186 and a sleeve 262 which surrounds the shafts 88 and 182 to define a chamber 264 closed by seals 266, 270. Lubricant is supplied to the chamber 264 through pipes 272, 274 and 276 and recirculated through a duct 278 connected to a scavenge pump (not shown). The stub shaft 142 of the turbine disc 72 is journalled in a bearing 140 which is supported in a spider 144 splined to an outer ring 148, the splined connection permitting relative radial expansion between the associated members. Lubricant is fed to the bearing 140 through a pipe 286 and recirculated through a tube 288. A housing 294 surrounds the bearing housing 290 and is fed with ram air through a duct 298, the housing 290 being vented by a pipe 300. A starter motor 312 is provided which drives a gear 320 in mesh with a gear 322 on one of the accessory drive-shafts 176. Certain accessories such as the scavenge and oil pressure pumps may be driven in conjunction with the low-pressure unit. The end bells such as 162 of the compressor are located axially inwardly of the outermost compressor discs whereby the overall length of the rotor may be shortened and the stator blades of the compressor are mounted on L-shaped plates which are clamped between the adjacent casing sections, see Fig. 6 (not shown). Heat shields 220, 222 line the casing 208 and the sleeve 216 respectively, both shields being spaced from the adjacent part to permit a flow of cooling air therethrough. Additional heat shields 236, 238 are located between the nozzle-supporting ring 232 and the burners. A propeller shaft 12 is journalled in bearings 14 and a member 26 which is splined to a gear 40 connected, as by a loose-splined ring 42, to a sun-gear 44 journalled on the shaft 12. The sun gear 44 meshes with pinions 47 which are carried by a cage 48 and also mesh with a ring gear 52. A gear 58 is also splined to the cage 48 and forms the sun-gear of a second planetary reduction gear including pinions 60 carried by a cage 62 splined to the shaft 12. The pinions 60 mesh with a ring gear 64 clamped to the frame. work of engine. Specification 618,635 is referred to.
Patent GB-552869-A (GB)
Title: Electrical signalling system with remote control
IPC: H04Q9/04
Filed: 1942-05-14
Abstract: 552,869. Electric signalling systems. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). May 14, 1942, No. 6546. [Class 40 (i)] [Also in Group XL] In a supervisory system employing synchronous distributers at the substation and at the central station, a supervisory cycle is started when a piece of apparatus changes its condition by a surge of current which is applied through a transformer to ionize a cold-cathode gas-discharge tube. As shown, the contacts IC relating to a number of pieces of apparatus are connected through individual resistances to the primary of a transformer T1, the secondary being connected. to the control electrode e2 of the tube L, whose anode circuit includes a starting relay S1. The electrode e2 is biassed with respect to the electrode e1 and the anode A so that the increase of potential produced by the current surge on the opening of a contact IC ionizes the control gap, whereas the reduction of potential caused by the reverse surge on the closure of a contact breaks down the main gap directly. Other transformers such as T2 may also be connected to the tube L. Relay S1 when operated connects up relay St1 which holds throughout the cycle, extinguishes the tube L and makes the stepping circuit for the switch SS1 under the control of relays H1, N1. Relay B1 which follows N1 sends impulses to the central station for stepping the switch SS2, the polarity of the impulses being dependent on relays E1, F1 which are operative in the normal position of the switch SS1 and in positions connected to contacts IC that are closed. At the central station, the impulses are received by relays A21, A22 polarised by shunt rectifiers and relays E2, F2 dependent thereon effect stepping of the switch SS2 (the first impulse operating A22, F2) and control over its wipers pairs of relays IR1, IR2 having a common armature for lighting lamps IL1, IL2: A supervisory cycle may be started from the central station by actuation of a key CK which through relays D2, B2 applies current to operate polarized relay A11 at the substation and make an alternative circuit for relay St1. The lighting of lamp CL when the switch SS2 moves off-normal shows that the cycle has begun. A cycle may be started manually at the substation by a key K11 connected to the transformer T1. Telephony may be initiated at either station by means of keys K12, K22 which transmit current to operate polarized relays A12, A21 to give a calling signal. Should the switch SS2 be left standing off-normal, relays H2, N2 are connected up by a thermal relay Te to restore the switch and N2 locks over key CK to give an alarm signal.
Patent GB-1246172-A (GB)
Title: Improvements in gas valves
IPC: F23N5/10
Filed: 1969-02-07
Abstract: 1,246,172. Burner controls. JUNKERS & CO. G.m.b.H. 7 Feb., 1969 [9 Feb., 1968], No. 6627/69. Heading F4T. [Also in Division F2] A gas ignition safety device has an off key 31 for controlling a gas inlet valve 13, an adjacent operating key 32 for controlling an ignition safety valve 17 and a main valve 20, both keys being displaceable along parallel axes, and a member 40, slidable against a spring transversely of the parallel axes, having a cam 42 co-operating with a projection 321 on key 32 and a latch 41 engageable with an abutment 311 on key 31 to hold the key when it is depressed against a spring 35, so that depression of key 32 causes the member to slide and release key 31 and is characterized in that a flat spring 50 placed between valves 17 and 20 has arms 511, 521 which prevent depression of a rod 34 secured to key 32 unless the valve 17 is shut, when a conical extension 562 of the valve stem 56 forces the arms apart and may co-operate with a conical depression in the end of rod 34 when it is desired to open the valve 17. Starting from the off position, Fig. 1, key 32 is depressed against a spring 36 to close valve 20 and open valve 17, simultaneously allowing key 31 to move outwards and open valve 13, so that gas can flow from an inlet 11, via chambers 14, 16 interconnected by a passage 15, to an aperture 19 in a chamber 18 leading to a pilot burner, Fig. 5 (not shown). The pilot burner is ignited and a thermocouple thereat supplies current to an electromagnet 60 to hold valve 17 open. Releasing key 32 lifts valve 20 to supply gas to a main burner through an outlet 22. To switch the gas supply off, key 31 is depressed and latched, closing valve 13 with a snap action, and it cannot be released to open valve 13 again until the ignition safety valve 17 closes to permit depression of key 32. The closure member 23 of the inlet valve 13 is slidably mounted on the rod 33 secured to the key 31, and has a locking disc 44 connected thereto which engages with an abutment 48 on each of at least three levers secured to the housing, arranged about and parallel to the rod 33, when the valve is open. The levers also possess cam faces 47 so that depression of rod 33 causes the edge 450 of a releasing disc 45, in the form of a truncated cone, secured on the rod, to move the levers outwards until disc 44 is released and the valve closes with a snap action due to a spring 43 between the discs 44 and 45.
Patent GB-1107293-A (GB)
Title: Improvements in photocopying or documental duplicating machines
IPC: G03G15/00
Filed: 1966-02-15
Abstract: 1,107,293. Feeding sheets. SCM. CORPORATION. 15 Feb., 1966 [23 Feb., 1965], No. 6682/66. Heading B6B. [Also in Division G2] In a duplicating machine, such as an electrophotographic printer, having guide members for routing a document to be copied along a path through an exposure zone, and a conveyer for the document and conveyers for feeding copy paper seriatim through the machine, the documents are in a stack and a power-driven roller engages the top of the stack to feed the documents one at a time into the document path. As applied to an electrophotographic printer (see Division G2), a feed shelf 344, detachably supported opposite an entry slot in the printer, supports a stack 418 of documents, and the top document is engaged by a pair of rollers 422, 424 secured on a shaft 426 which is journalled in side arms 428, 430 pivotal at 432, 434 in the shelf sides. The shaft 426 is driven from a shaft 448 by belt and pulley means 438, 440, and the shaft 448 is driven from a main motor-driven belt (112, Fig. 3) when a solenoid 464 is energized to cause a gearing assembly to be engaged between the shaft 448 and the belt (112). The same belt (112) drives separator and conveyer rollers for separating copy sheets from a stack (25, Fig. 2) to an exposure zone (28) in timed sequence with the feed of the documents.
Patent GB-1431516-A (GB)
Title: Variable flow rate valve
IPC: F16K17/20
Filed: 1974-02-14
Abstract: 1431516 Valves AEROQUIP AG 14 Feb 1974 [6 April 1973] 6736/74 Heading F2V In a valve assembly for a filling line of a petrol tank comprising two passageways 22, 34 connecting inlet 11 to outlet 14, the passageway 34 is always open and the passageway 22 is controlled by a valve 48 which is initially closed and which is opened by a vacuum created in a chamber 58 by fluid flow in passageways 34 when the liquid level in the tank reaches the level of a passageway 66 connected to the vacuum chamber. The vacuum chamber is connected to a chamber 42 housing an annular piston 46 integral with the valve 48 via gravitycontrolled check valves 64 which effect slowclosing of the valve 48 so that drainage can take place. The embodiment described is to be situated at the end of the line at the bottom of the tank. If the assembly is situated at other points in the line then a flexible conduit connects the vacuum chamber to the end of the line at the required height where the valve is desired to open. The point where the conduit opens into the tank may be controlled by a floating loose ball check valve.
Patent GB-908274-A (GB)
Title: A process for the production of acetylene-containing gas mixtures
Inventor: GOETZEE JOHANNES GEORGE
IPC: C10G9/36
Filed: 1960-02-26
Abstract: Acetylene-containing gases are obtained by introducing a hydrocarbon or mixture of hydrocarbons into hot combustion gases to crack the hydrocarbon at at least 1,000 DEG C. followed by quenching wherein the combustion gases are obtained by burning a fuel-containing stream with an oxygen-containing stream, one stream being introduced in the form of a hollow cone through a central opening in the end wall of a cylindrical combustion zone, the other being introduced with a rotary motion about the axis through the same opening whereby a double toroidal vortex flame is formed, e.g. as described in Specification 703,721.  The amount of oxygen may be 90-103% of the stoichiometric amount for complete combustion and steam may be introduced either with the fuel or oxidant to control the temperature of the combustion gases which is preferably 1,400-2,000 DEG C., the amount of steam being 5-15 kg./kg. of fuel.  Both fuel and oxidant may be preheated to 150-850 DEG C.  The hydrocarbon to be cracked preferably boils below 400 DEG C. and contains straight chain paraffins.  It may be gaseous or is vaporized by preheating to 300-600 DEG C.  The amount of hydrocarbon introduced is 0.5-4 kg./kg. of fuel, the pressure in the cracking zone is preferably below 5 kg./cm.2 absolute and the hydrocarbon residence time is kept below 5.10-3 sec. before quenching to below 600 DEG C., the residence time being controlled by adjusting the point of quenching and/or adjusting the pressure.
Patent GB-550250-A (GB)
Title: Service stopper for gas mains, branch pipe connections and the like
IPC: F16L55/13
Filed: 1941-05-28
Abstract: 550,250. Stoppers. FOSTER, A. S., and UNDERPRESSURE ENGINEERING CO., Ltd, May 28, 1941, No. 6834. [Class 99 (ii)] A service stopper for gas and other mains is constructed as shown in Fig. 3 with a tapered part a, a bore c which terminates short of the leading end and a sleeve g which grips the outside of the pipe to which it is applied.
Patent GB-312413-A (GB)
Title: Improvements in loud-speakers of the expanding horn type
IPC: H04R1/30
Filed: 1928-03-05
Abstract: 312,413. Brookes, A. J. C. March 5, 1928. Horns for loudspeakers.-In a " to and fro " type horn the separate sections are of such relative dimensions as to expand progressively upon a logarithmic system described in t h e Specification. Each annular section at its commencement has a nestricted cross sectional area to " impede and reconcentrate " the sound waves. The outer edge of the flare is substantially thickened or reduced. Specifications 253,503 and 255,520 are referred to.
Patent GB-1411150-A (GB)
Title: Coal winning machines
IPC: E21C29/14
Filed: 1973-02-12
Abstract: 1411150 Tensioning chains TAIHEIYO COAL MINING CO Ltd 12 Feb 1973 6841/73 Heading B8B [Also in Division E1] A chain 10 hauling a mineral mining machine (not shown) is tensioned by a hydraulic jack 5 which can pivot an arm 3, in which drive wheel 4 is mounted, about an axis 30.
Patent GB-349626-A (GB)
Title: Stud-carrying ribbon for the clips of stocking- or sock suspenders
IPC: A41F11/04
Filed: 1930-03-01
Abstract: 349,626. Hose suspenders. EVANS, W. E., 27, Chancery Lane, London.- (Vorwerk & Sohn ; 34, Kleiner Werth, Barmen, Germany.) March 1, 1930, No. 6858. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 17, 1930.] [Class 44.] The carrier ribbon for the stud d of a hose suspender comprises a woven or plaited tube a of cotton into one end of which the stud d is inserted so that its bottom plate is enclosed. The tube may be covered by a loose sheath i.
Patent GB-959957-A (GB)
Title: Control device for operating pivoted ventilators
Inventor: WALKER NORMAN VIVIAN CURTIS
IPC: E05F17/00
Filed: 1962-02-22
Abstract: 959,957. Mechanisms for operating ventilators. ARENS CONTROLS Ltd. Feb. 12, 1963 [Feb. 22, 1962], No. 6960/62. Heading E2M. [Also in Division F4] A control device for operating pivoted ventilators comprises an operating cable 6 slidably mounted in a rigid conduit 20 attached to the fixed frame 2 of the ventilator, one end of the cable 6 being provided with means 38 for sliding the cable relative to the conduit, and the other end being secured in a blind hole 14 in a fitting 12 after it has passed through a hole 9 in the pivoted frame 1. The fitting 12 is attached to the outside of the flange 3 of the frame 1 by screws 17, or a part of the fitting 12 may pass through the flange and be threaded to receive a nut. The cable 6 passes through a guide 18 and is connected to the end of a channel 34 cut in an operating rod 19 slidable in the conduit 20. The device may be used with a number of ventilators as shown in Fig. 1. The channel 34 is of a length to accommodate the whole of the cable 6 when the ventilator is in the closed position. Specification 621,341 is referred to.
Patent GB-526032-A (GB)
Title: Improvements in or relating to circuits for generating deflecting waveforms for cathode ray tubes
IPC: H04N3/233
Filed: 1939-03-03
Abstract: 526,032. Television ; valve generating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 3, 1939, No. 7004. Convention date, March 3, 1938. Addition to 483,999. [Classes 40 (iii) and 40 (v)] The parent Specification relates to a saw-tooth line-frequency current generator comprising an inductance 11 associated with a capacity, preferably its distributed capacity, to which is applied a saw-tooth voltage at frame frequency so as to produce the required lengthening or shortening of the lines for a trapezoidal scanned area. The saw-tooth voltage of frame frequency may be generated across a condenser 15 associated with a rectifier 12 across the inductance 11. According to the present invention, the inductance 11 is coupled by a transformer 14 to the output circuit of valve 10, to the inner grid of which are applied line frequency impulses and to the screen grid of which is applied the saw-tooth voltage of frame frequency. This voltage may be derived from a resistance 17 in series with condenser 15, so that it is dependent upon the condenser current. Specification 525,680 also is referred to.
Patent GB-108870-A (GB)
Title: Improvements in Artificial Teeth.
IPC: A61C13/10
Filed: 1916-11-10
Abstract: 108,870. Thorn, J., and Western Dental Manufacturing Co. Nov. 10, 1916. Teeth, artificial. - A fiat-back artificial tooth is formed with a recess undercut at the top and bottom only and of other than circular cross-section. In the form shown, a tooth c is formed with a rectangular recess a, the upper and lower walls d, e of which are undercut. A pin projects into the recess and may extend beyond the back surface of the tooth. In modifications, the recess may be of elliptical or other symmetrical or unsymmetrical shape. The pin may be omitted.
Patent GB-622347-A (GB)
Title: Improvements in electric selector switches
IPC: H01H19/08
Filed: 1947-03-14
Abstract: 622,347. Regulating switches. GODDEN, A. W. March 14, 1947, No. 7084. [Class 38(v)] A switch such as a tone-control for a radio-receiver is provided with a common terminal ring 14 for components 16 such as resistors or capacitors connected to the contacts 2-5. The movable contact comprises an arm 12 on a ring 11 carried by an insulating disc 10 on the operating shaft, and in continuous engagement with the contact 6.
Patent GB-822958-A (GB)
Title: An improved process for the manufacture of pencil wood from non-cedar woods
IPC: B27K5/00
Filed: 1956-03-07
Abstract: 822,958. Treating wood. IROSZERGYAR. March 7, 1956 [March 9, 1955], No. 7102/56. Class 140. A process for the manufacture of pencil wood from non-cedar woods comprises subjecting green non-seasoned limewood, alderwood or wood of common conifers to the effect of saturated moist steam at a pressure of between 3-5 atmospheres applied such that a temperature between 130‹ and 150‹ C. is reached in 3-5 hours and is retained for between 6-14 hours after which steaming the wood is cooled gradually in from 3-5 hours. The wood may be subjected to the process in the form of the original logs or planks, and the pencil slats may thereafter be prepared by sawing the already improved and softened material. Alternatively grooved slats made of green wood may be treated according to the invention. In an example, a steampressure cooker is charged with green non- seasoned planks of limewood, steam of about 3 atmospheres pressure is introduced and the supply adjusted so that the temperature rises gradually in 3-4 hours to 133‹ C. at which level the temperature and pressure are maintained for 9 hours. Thereafter the steam supply is cut off and the temperature and pressure are adjusted so that the contents of the cooker cool down gradually in 3-4 hours to room temperature. The cooled planks are removed from the cooker, dried and sawn into grooved pencil slats. As a result of the process the compression strength of the green wood and its swelling and contracting capability are reduced, its sharpening quality is improved and its colour is transformed into a brownish hue.
Patent GB-856809-A (GB)
Title: A new or improved transverse feed device for internal grinding appliances
IPC: B24B47/04
Filed: 1957-03-04
Abstract: 856,809. Grinding. ALLEMANN A.G., H. March 4, 1957 [March 2, 1956] No. 7142/57. Class 60. A transverse feed device for an internal grinding appliance comprises a piston-andcylinder device 8, Fig. 2 arranged in a housing 6 clampable to the carriage of a lathe and operative upon a pawl 9 engaging a toothed wheel 1 clamped on the feed screw of the carriage. The fluid pressure supply, which may be pneumatic, to the device 8 is controlled by a reversing device controlling the axial movement of the grinding spindle, or a control device operated by the latter. The stroke of the piston may be adjusted by rotation of a screw 12 and a dashpot effect is provided by a piston 13, which is actuated during the movement of the piston 8 by a ball 15 in engagement with inclined faces on both the piston 13 and the main piston 8, thereby displacing oil from beneath the piston 13 into its mid-portion and a reservoir 16. Pressure is supplied to the piston-and-cylinder device 8 after a determined number of strokes of the grinding spindle through a rotary valve 17, Fig. 3, which has a toothed control wheel arranged to be actuated by a pawl 19 and a piston 18 operated in turn by air pressure from the valve for reversing the stroke of the grinding spindle ; as shown in Fig. 3, the valve 17 opens up supply to the piston-and-cylinder device 8 twice for each complete revolution. The valve 17 may be actuated by mechanised means connected to the grinding spindle. Manual control of the feed movement is possible by moving the pawl 9 to its inoperative position, shown dotted.
Patent GB-1418808-A (GB)
Title: Containers for fluent materials
IPC: B65D5/70
Filed: 1973-02-14
Abstract: 1418808 Cartons; packages TETRA PAK INTERNATIONAL AB 13 Dec 1973 [14 Feb 1973] 7196/73 Headings B8P and B8C To facilitate pouring from a container having an openable pouring aperture 7 the roof has a sloping portion 2a thereby reducing the area of the part 6 of the roof having the aperture therein. The aperture may be positioned near a corner of the container so that the container walls act as a funnel. The container may be of plastics-coated paper or foamed polystyrene with surface layers of homogenous plastics material. Two U-shaped blanks may be assembled to form the container. In another form two blanks are assembled to form a row of containers having weakened strips (17), Fig. 6 (not shown), enabling the containers to be separated. The container may be manufactured as described in Specifications 1,294,908 or 1,332,628. In a modification, the aperture is located in a flat triangular roof portion parallel to the base, the remaining area of the roof being flat and inclined diagonally of the container.
Patent GB-181438-A (GB)
Title: Improvements relating to devices for automatically closing gas supply services
IPC: F16K17/00
Filed: 1921-03-05
Abstract: 181,438. Apps, H. J. March 5, 1921. Safety cut-off valves for use, in prepayment. gas supply systems. A valve member g is normally held away from its seat e, which is formed on a projection d on the base a, by the flow of gas acting on a light metal cup f. The valve is opened initially by a spring-pressed push-rod i either secured to a ring h adapted to engage the bottom of the cup, or arranged to engage a flange formed on the lower edge cf the cup. The upper end of the push-rod has a valve-like sealing-collar adapted to make a tight joint with the casing. The outlet may be directed upwards. downwards, or to one side.