baber/WOPTO huggingface dataset:
Patent GB-826189-A (GB)
Title: Improvements in or relating to billet peeling machines and centreless bar turning machines
Inventor: STELL JOHN ERNEST
IPC: B23B5/12
Filed: 1957-04-15
Abstract: 826,189. Turning. NORTON & CO. Ltd., Sir J. F. May 27, 1958 [April 15, 1957], No. 12184/57. Class 83 (3). In a billet-peeling or centreless bar-turning- lathe, bars or tubes 2, Fig. 1, are supplied by a crane to a low-level stillage 8, from which they are raised singly to grippers on a carriage 4 which holds the bar against rotation and feeds it axially through a rotary-tool-head 1, the finished bar being received by grippers on a carriage 6 and then deposited on a dischargestillage 23. The bars supplied to the stillage 8 roll down the inclines, the lowest bar resting against stops 9, Fig. 2, pivoted at 10 to a linkage 12 which is actuated by a fluid-pressure cylinder 13 to lower stops 11 and raise stops 9, thus allowing the lowest bar to rest against the latter. Fluid-cylinders 17 are then actuated to raise rollers 14 lying under the lowest bar, which lift the bar into position to be engaged by grippers in the carriage 4, Fig. 4. The carriage is then traversed on ways 5, Fig. 1, by a fluidcylinder, until the bar is engaged by serrated driving-rollers 3, which assist in feeding it through the cutter-head 1. On emerging from the head 1, the finished bar is received by grippers in carriage 6, and when free of the head, is deposited on rollers 19, Fig. 7, which are then lowered by fluid-cylinders to lay it on the ramps 23. The bars roll down these ramps but are held at intervals by stops 28, which are lowered by a fluid-operated-linkage alternately with the raising of stops 24 adjacent the rollers 19. In a modification, the pivoted stops are replaced by dogs 45, Fig. 9, which slide vertically and are raised by chains 46 attached to an intermittently-rotated roller 47, which also carries pinions 41 engaging racks 42 attached to lifting- rollers 19. Thus, when rollers 19 are lowered on the discharge-side of the machine, dogs 45 are raised to lift a bar thereon over stops 44 on the ramps to allow it to roll to an adjacent set of stops, and a similar set of dogs on the supplyside of the machine work alternately with the rollers 19.
Patent GB-761529-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1954-12-24
Abstract: The invention comprises a 3-keto-1,4,17(20)-pregnatriene-21-oic acid or ester represented by the formula: <FORM:0761529/IV(b)/1> wherein R is hydrogen, a -hydroxy, b -hydroxy a -acyloxy containing 1-8 carbon atoms inclusive and wherein R1 is hydrogen or alkyl containing 1-8 carbon atoms inclusive and the preparation thereof by dehydrohalogenating the corresponding 2-halo-3-keto-4,17(20)-pregnadiene-21-oic acid or ester.  As dehydrohalogenating agents there may be employed lithium chloride, potassium acetate, pyridine, picolines, b -lutidines, a ,b -collidines, g -collidines, parvulines and parvolines.  The 21-ester group may be hydrolysed to form a 21-hydroxy group. Examples disclose the production of methyl 3 - keto - 1,4,17(20) - pregnatriene-21-oate, methyl 3,11-diketo-1,4,17(20)-pregnatriene - 21 - oate, methyl 3 - keto - 11a -hydroxy - 1,4,17(20) - pregnatriene - 21 - oate. methyl - 3 - keto - 11b  - hydroxy - 1,4,17(20)-pregnatriene - 21 - oate, methyl 3 - keto-11a  - acetoxy - 1,4,17(20) - pregnatriene - 21 - oate and the corresponding 21-oic acids.  Specifications 761,527 and 761,528 are referred to.
Patent GB-639851-A (GB)
Title: Improvements in and relating to velocity-modulation electron discharge tubes
IPC: H01J25/16
Filed: 1947-05-06
Abstract: 639,851. Velocity-modulated tubes. PHILCO CORPORATION. May 6, 1947, No. 12210. Convention date, June 7, 1946. [Class 39 (i)] A velocity modulation electron discharge tube has input and output means in which two U.H.F. waves from different sources can be fed in and propagated in opposite directions, the rearwardly-travelling component of each wave at the output means being suppressed. The buncher and catcher each comprise a slotted wave-guide 9, 10, with flared portions 16, 17, 18, 19 coupled to wave-guides or coaxial lines forming the main transmission lines and acting as matched impedances. Portions 24, 25, 26, 27 in the wave-guides are one half wavelength thick to avoid reflections. The cathode 6 gives a wide sheet-like stream of electrons of about the width of the slots 12, 15 in the buncher and catchers, i.e. from one to five wavelengths of the operating signals. The upper surface of guide 10 may be unperforated and act as collector. The buncher and catcher have restricted portions each substantially equal to the length of the slots. A wave fed into the input is amplified and propagated by the density modulated electron stream to emerge from the output guide in the same direction, the components travelling in the opposite direction cancelling out and being suppressed. Two waves fed in in opposite directions are amplified and transmitted in the output guide in the same direction without substantial interference. The theory underlying this action is explained. In a modification, Fig. 3, the right-hand ends of the input and output guides are joined'by coupling 40 so that there is a squared amplification of a signal fed into the input.
Patent GB-261052-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B77/02
Filed: 1925-05-11
Abstract: 261,052. Sokal, E. May 11, 1925. Cylinders, detonation-preventing materials in. -To prevent detonation there is provided in the combustion space a metal or other material which is subject to a reversible change of physical state or chemical composition between successive explosions. Furnished in the Specification as examples of materials lying within the scope of the invention are the metals, lead, antimony, and tellerium and others unspecified, but excluding zinc, having melting points between 300‹ and 700‹ C., and the chemical compounds lead carbonate, basic copper carbonate, calcium carbonate, sodium carbonate, and potassium carbonate. Also, basic lead carbonate may be used or any " substance of the carbonate-oxide type " of which the carbonate is convertible into an oxide of the same chemical element or vice versa; or an oxide of lead, e.g. litharge, may be mixed with lead carbonate in equal or other proportions. The materials may be applied to the required part of the combustion chamber by spraying or they may be held in a suitable binder, e.g. a silicate binder. Specification 211,936 is referred to.
Patent GB-583240-A (GB)
Title: Improvements in electric heating means for kilns
IPC: F27B9/36
Filed: 1944-06-28
Abstract: 583,240. Electric resistance kilns. MINTONS, Ltd., and CAMPBELL, A. J. June 28, 1944, No. 12269. [Class 39 (iii)] Kilns or kiln trucks are heated by electric resistances forming ceramic work-supporting members 13 of low electrical conductivity, e.g., recrystallised silicon carbide, each member comprising a bar or plate 13 with integral end portions 14 of larger cross-section, the end portions 14 being assembled to form substantially continuous walls with the intermediate plates 13 spaced apart to form supports for articles. The members 13 may be of kaolin. Rectangular rods 12 extend up at intervals from V-shaped ribs 11 on the base of the kiln. The end portions 14 of the plates are grooved to slide between the rods 12 and may be superposed, the lower edges being grooved to engage ridges 16 on the top edges of the lower portions. The intermediate plate 13 may be thickened at 20 adjacent the end walls 14. A space 21 between the walls 14 and the walls 10 of the kiln is filled with conducting material 22 such as powdered carbon or graphite into which project metal conductors 24 supplying current. The top of the space 21 may be shaped as a hopper. A heat-insulating member 18 closes the top of the kiln.
Patent GB-116810-A (GB)
Title: A New Arrangement and Construction of Internal Combustion Engine, applicable to Engines of the Two Stroke Cycle.
Inventor: KNIGHT JOSEPH
IPC: F02B75/28
Filed: 1917-08-28
Abstract: 116,810. Knight, J. Aug. 28, 1917. Two-stroke-cycle engines.-Two pistons reciprocating in opposite directions are coupled to a common shaft, the cranks of which are at 135 to 145 degrees apart, and the explosion takes place when one crank has moved about 35 to 45 degrees past a dead centre, the compression being maintained or increased by the movement of the other piston. In the form shown, the piston 1 works in a sleeve piston 2 in an outer cylinder 3, and the pistons are coupled to cranks 6, 7 at an angle of 145 degrees. By making the crank 7 longer than the crank 6, compression may be increased sufficiently to effect ignition. The cylinder 3 is provided with automatic inlet valves 8 supplied by an annular inlet chamber, which is formed by a member 8<a> mounted in the cylinder head 15. The sleeve piston 2 has an enlarged head 2<a> with an automatic inlet valve 10, so that the cylinder 3 forms a pump chamber of sufficient volume to ensure that the combustion chamber 11 receives a full charge. Exhaust ports 12 in the sleeve piston 2 co-operate with ports 12<a> in the cylinder 3. Cylinders, cooling. - The underside of the head 2a may draw in and discharge air through ports 22, cooling the cylinder. This air may be compressed into a receiver for starting in either direction, which is effected bv admitting the compressed air by a starting valve to that cylinder, the crank of which is in position for receiving a starting or reversing impulse. A port 23 on the cylinder 3 may be fitted with a starting-valve. Provisional Specifications 12331/17 and 16776/17 state that one of the two pistons may be controlled by a cam-shaft.
Patent GB-497541-A (GB)
Title: Improvements in the manufacture and production of lubricating oils
IPC: C10G50/02
Filed: 1938-04-25
Abstract: Lubricating oils are produced by polymerization of propylene or a -butylene or mixtures thereof with one another or with smaller amounts of ethylene under the conditions defined in the parent Specification for polymerizing ethylene, viz. with aluminium chloride containing less than 5 per cent of non-sublimable residue, in presence of inert solvents, with exclusion of free iron, and using gases free from oxygen and sulphur and their compounds.  Oxidation inhibitors may be added to the oils obtained.  In an example, propylene, purified by fractional distillation in a Linde plant, subsequent washing at 100 atmos. with caustic soda solution, and drying, is led at 60 DEG  C. into the aluminium chloride suspended in petroleum ether in a vessel of V2A steel.
Patent GB-595380-A (GB)
Title: Improvements in or relating to furnace construction
IPC: F27B9/02
Filed: 1945-05-17
Abstract: 595,380. Continuous muffle furnaces. STEVENS, A. H. (Ferro Enamel Corporation). May 17, 1945, No. 12443. [Class 51 (ii)] A fuel fired continuous muffle furnace has transverse combustion tunnels communicating with side muffles, and a central muffle spaced above said combustion tunnels, and means for controlling the flow through said muffles. Beneath the floor 9 of a U-type tunnel furnace alternate transverse combustion tunnels 11, 12, with burners 8, 10, communicate with side muffles 14, 16 respectively and with a central wall muffle C. The combustion gases flow from left to right, Fig. 1, within the side muffle 16, central muffle C and side muffle 14 downwardly through outlet openings 39, 36, 40 into ducts 41, 37, 42, underthe floor of the preheating and cooling section, and cut through a flue 43. Dampers 45, 44, 46 centrol the flow from the flues 41, 37, 42, thus controlling the heat of the muffles 16, C, 14. Vertical pilasters of successively decreasing height are provided in all the muffles.
Patent GB-108559-A (GB)
Title: Improvements in Disinfecting Apparatus.
Inventor: LONGSDON HENRY CROFTS
IPC: A61L2/06
Filed: 1916-09-04
Abstract: 108,559. Longsdon, H. C., and Thresh, J. C. Sept,. 4, 1916. Disinfecting-chambers.-Disinfecting-apparatus of the type described in Specifications 5128/02 and 12593/15 comprises a chamber a having walls of combined asbestos and cement and fitted with a door h having asbestos packing and screw-bolt Fastenings n<1>. A tray b for disinfectant to be vaporised is mounted in the base of the chamber and is fitted with a draw-off cock b<2>. The tray is heated by a portable furnace or blow lamp d which, together with the whole apparatus, stands in a tray c. A gauze protector f is mounted above the tray b. An air inlet a<4> in one of the walls of the chamber is fitted with a hit-and-miss valve k, k<1> and with a plate m which deflects incoming air over the surface of the heated tray. The usual air-outlet valve o' pivoted at o<2> is controlled by a lever arm o<3>, rod o<4>; and hand-lever o<5>. A damper q, Fig. 2, may be inserted beneath the tray b to protect it from excessive heat during the drying of the articles in the chamber after the disinfectant liquid has evaporated. An opening for a thermometer may be provided in the door of the chamber. The walls of the chamber may be continued downwards to shield the furnace.
Patent GB-306760-A (GB)
Title: Well casing protector
IPC: E21B17/10
Filed: 1928-04-28
Abstract: 306,760. Bettis W. I. April 28, 1928. Borehole apparatus. -Well casings are protected from wear by the use of rings 11, preferably of soft rubber, which resiliently grip the drill or pump rods, the rings having smooth outer surfaces, bevelled or rounded shoulders 12, and internal recesses 13. The recesses 13 may be annular, or they may be rectangular and staggered in adjacent annular rows, acting as vacuum cups to assist in holding the rings.
Patent GB-1287189-A (GB)
Title: Internal combustion engine intake manifold vacuum control apparatus
Inventor: WALTER EARL WESLEY
IPC: F02M3/045
Filed: 1970-03-16
Abstract: 1287189 Valves E W WALTER and M A DUMONT 16 March 1970 [21 March 1969] 12591/70 Heading F2V [Also in Divisions F1 and H1] A solenoid-operated inlet valve for admitting air to an intake manifold 14, Fig. 2, has a first valve member 42 and a larger second valve member 39, the solenoid having primary and secondary windings energized when simultaneously a first switch is closed by release of an accelerator pedal and a second switch is closed by the increase of engine speed above the normal idling speed, to open the first valve and subsequently to open the second valve. When the engine is over-running with pedal 19, Fig. ], released the normally open switch 122 is closed, inlet manifold vacuum is high and the high engine speed causes engine cooling fan 11 to direct an air current on to sail 133 to close switch 124. Primary and secondary windings 90 and 91 are energized to raise valve plunger 42, Fig. 2, thereby allowing ambient air to flow via screen 110, openings 57, 46 and bore 33 to relieve the high inlet manifold vacuum. Upward movement of the valve plunger 42 raises pin 85 to lift contact breaker arm (99), Fig. 3 (not shown), to de-energize the primary winding 90. The reduction of the inlet manifold vacuum already effected allows the secondary winding to open the valve 39.
Patent GB-821273-A (GB)
Title: Improvements in or relating to adjustable mountings
Inventor: STEPHENSON LEONARD
IPC: F21V21/22
Filed: 1957-04-18
Abstract: 821,273. Pedestal stands, brackets. BRANDON ELECTRICAL ENGINEERING CO. (LEEDS) Ltd. April 17, 1958 [April 18, 1957], No. 12677/57. Classes 52(3) and 52(5) In a telescopically adjustable pedestal stand the inner member 5 passes through an annular counterweight 9 housed in the outer tube 2 and connected by wires passing over pulleys to a notched slider 7 on the bottom of the member 5 which travels on guide rods 6 within the tube. The counterweight can also be notched as at 9a to engage the guide rods and is preferably fitted with antifriction balls 10. A counterweighted bracket arm 17 to carry a lamp 16 &c. can be pivoted to the top of the member 5. The lamp casing can be pivotally adjusted and the arm 17 may slide in the pivot coupling 20 for balance setting and the coupling 20 may rotate axially on the member 5.
Patent GB-528157-A (GB)
Title: Improvements in apparatus for drying webs of fabric
IPC: F26B13/10
Filed: 1939-04-28
Abstract: 528,157. Drying fabric webs. GESSNER, AKT.-GES.. E. April 28, 1939. No. 12812. Convention date, May 14, 1938. [Class 34 (i)] In apparatus comprising a drying chamber 3 housing an endless conveyer 5 with rotatably mounted cross .bars 12 on to the top run of which the fabric 6 to be dried hangs in short loops, the fabric is supported or the lengths of the loops regulated by a net 10 formed by the top run of another endless conveyer which is vertically adjustable therefrom and may also be set at varying angles thereto. The speeds of the two conveyers are separately regulatable.
Patent GB-834470-A (GB)
Title: Improvements in or relating to devices for determining very low gas pressures
IPC: H01J41/04
Filed: 1957-04-23
Abstract: 834,470. Electric tests. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 23, 1957 [April 26, 1956], No. 12928/57. Class 37. In an ionization manometer a pair of capacitors is provided charged respectively in accordance with ion and electron currents the arrangement being that when the potential on one capacitor varies by a given amount both capacitors are restored to an initial condition, the voltage variation of the other capacitor being a measure of the pressure. As shown, Fig. 1, a conventional glass ionization manometer is connected to the source of pressure to be measured. The electron-collecting anode in the form of a cylindrical grid is connected to 300 v. positive and the rod-shaped ion collector 3 to 150 v. negative. The electron current discharges a condenser C1 to a point where a trigger circuit operates to restore the initial voltages both on this and on a condenser C2 charged by the ion current. The voltage variation of the C2 is indicated at IV and is a measure of the pressure. The Specification explains mathematically why this is so. Circuit details (Figs. 2 and 3). Initially, capacitor C1 is discharged by the electron current. The grid voltage of triode 7 decreases until the anode has increased sufficiently to change over a Schmitt trigger circuit 4. When the circuit changes over the right-hand triode is cut off, diode 6 conducts and capacitor C1 is recharged, the trigger changes back and the discharge commences. When capacitor C1 is charged, a positive pulse is applied to the grid of valve 11 (Fig. 3), in parallel with the cathode resistor of cathode follower 9. The cathode resistance of valve 9 falls to a low value and condenser C2 is discharged through valve 9. The anode and cathode of cathode follower 9 are connected respectively to the grid and cathode of valve 10 and from the cathode of valve 13 is produced a saw-tooth the slope of which is proportional to the ion current and inversely proportional to the electron current. The saw-tooth is fed through a diode 14 to a double triode also having a meter connected between the cathode which, with capacitor C3 and resistor R, constitutes a peak voltage meter.
Patent GB-1298842-A (GB)
Title: Improvements in or relating to rotary wing aircraft
Inventor: KIZILOS APOSTOLOS P
IPC: B64C27/18
Filed: 1970-03-18
Abstract: 1298842 Rotor blade for helicopter HONEYWELL Inc 18 March 1970 [19 March 1969] 12932/70 Heading B7W [Also in Division F2]  A helicopter rotor balde has a plurality of outlet means, spaced apart along the blade, for emitting fluid in the form of a jet flap, the outlets being controlled by respective control means each responsive to signals indicative of airflow conditions across the same spanwise portion of the blade as contains the outlet for controlling the jet flap in dependence as those conditions. Each outlet means may bo a variable deflection thruster (VDT) 32 comprising a pair of slots 34 and 35 from which fluid is emitted and adheres by the Coanda effect to surface 33; the two streams impinge and leave the surface as a jet flap, the inclination # of which is determined by the relative momenta of the two streams. The VDT is controlled by fluid amplifiers 36 (whose power nossle is fed from spanwise duct 37), and 60, either in response to a pressure differential between inlet ports 41 and 42 located in the upper and lower surfaces respectively in the region of the leading edge, and/or a pressure differential command signal applied by way of ducts 63 and 64 a requirement of increased lift diverts fluid to slot 34 and this higher results, in an increase in #. The VDT 32 responds to the dynamic pressure, sensed by an inlet 40 at the leading edge, as follows; when reverse flow occurs so that the dynamic pressure is substantially zero, bias pressure applied via fluid resistor 52 causes the total output of bi-stable amplifier 50 to pass to the first upper control part of summing proportional amplifier 55, and ultimately causes the output of the amplifier 36 to be directed through the slot 35 in the direction of arrow 72, to produce leading edge blowing, thus smoothing the airflow to increase lift. When the airspeed of the blade is such that the dynamic pressure applied via resistor 51 overcomes the bias pressure, the entire output of the amplifier 50 will be through its lower outlet, thus tending to direct the output of the amplifier 55 through its upper outlet; this is opposed by, but overcomes, the dynamic pressure applied directly to the wrapped control part of the amplifier 55. The VDT 32 thus emits mainly through the slot 34, so that # is large. As the airspeed and dynamic pressure increase, the pressure applied to the unopposed part of the amplifier 55 increases, but that applied to the lower part does not increase, as it represents the total output of the amplifier 50. Thus the inclination # of the jet flap is progressively reduced as the airspeed of the blade increases. The power nossles of fluid amplifiers 45, 50, 55 and 60 may be fed from the duct 37. Each blade of a rotor may be divided into a number of span sections (120-123, Fig. 4, not shown), each with its own control system, so that the direction of the jet flap emitted in that section is appropriate to the conditions experienced at any instant.
Patent GB-829884-A (GB)
Title: A method of dynamic sealing between two relatively movable bodies
IPC: F28D19/04
Filed: 1956-04-27
Abstract: 829,884. Thermal regenerators. SVENSKA ROTOR MASKINER A.B. April 27, 1956 [April 29, 1955], No. 12948/56. Class 64(1) Leakage losses through the clearance gap between the rotor 4, Fig. 1, and the cover. plate 3 of a thermal regenerator are reduced by directing a current of fluid transversely of the gap. Air escaping from a duct 1 is drawn through a radially extending slot in the plate 3 by a nozzle 7 and blown by a fan 6 into the atmosphere or back into the duct 1 so that leakage into the flue duct 2 is reduced or eliminated. The action of the fan 6 may be reversed, the sealing current being drawn from either the atmosphere or the flue gas. The rotor is preferably constructed so that the radial edge of a partition, a grating 9 or a transfer plate always intervenes between the edge of the plate 3 and the nozzle 7. Fig. 3 shows a modification in which the fan circulates sealing fluid between a pair of nozzles 7, 8 which may be oppositely or similarly inclined to the cover plate 3. The level of the plate 3 between the nozzles may be slightly raised to improve the sealing effect. Suction or pressure slots may be distributed over the entire plate 3. The discharge and suction pressures are above and below those in the air and flue ducts, respectively.