baber/WOPTO huggingface dataset:
Patent GB-968598-A (GB)
Title: Improvements in and relating to feed heaters for steam turbine plant
Inventor: POWER VINCENT
IPC: F28B1/02
Filed: 1961-03-10
Abstract: 968,598. Tubular heat exchangers. C. A. PARSONS & CO. Ltd. March 7, 1962 [March 10, 1961], No. 8923/61. Heading F4S. In a steam turbine plant feed water heater substantially as described in Specification 964,331, the desuperheater, condensing and condensate sections I, II and III respectively are arranged one behind the other in the direction of the axis of the casing.
Patent GB-379245-A (GB)
Title: Apparatus for lubricating or greasing the wheel axles of bogies in mines or such like
IPC: B61K3/00
Filed: 1932-03-29
Abstract: 379,245. Force-feed lubricating. WINNING, G. M., Dunein, Dalmallington, Ayrshire. March 29, 1932, No. 8948. [Class 12 (iii).] Fixed apparatus for lubricating corve and like axles comprises a lubricant-containing cylinder A formed with a filling opening B, a spindle F passing through a stuffing-box E in the front cover D and supported by a centre pin H screwed in the rear cover C, a piston G slidable within the cylinder and in threaded engagement with the shaft F and prevented from rotating by a rod J passing through it, a pinior L freely mounted on a reduced extension F<1> of the spindle and pressed towards the cylinder by a spring N so as to engage ratchet teeth M on its side with similar teeth K on a flanged portion of the shaft, and a rack O engaging the pinion L and formed on a vertical rod P slidable in bearings Q, R and carrying at its upper end a cam-shaped plate S adapted to contact witl passing axles. As the rod P is depressed by ar. axle, against the resistance of a restoring spring T, the piston G moves axially to eject lubricant through a port U and pipe V to a pan W mounted on a bracket Y and containing a cotton pad X which wipes the lubricant on to the axle. As the piston G nears the end of its stroke, it engages a spring-pressed rod a and pushes it outwards against the pinion L so as to disengage the teeth M, K and so prevent further movement of the piston.
Patent GB-1489975-A (GB)
Title: Apparatus for introducing molten metal into a die
IPC: B22D18/04
Filed: 1975-03-04
Abstract: 1489975 Casting-machines G O FORCESI 4 March 1975 [27 March 1974] 8952/75 Heading B3F  Apparatus for low pressure die casting comprises a furnace 1 having a delivery duct 9 which is movable with respect to the furnace, and a tiltable plate 16 for supporting a die 3, the plate 16 being provided with a nozzle 18 and the duct 9 being movable to co-operate with the nozzle 18. The plate 16 is supported on levers 19 pivoted at 20 and movable by jacks 22. It may be fixed at a given inclination by arms 23. The duct 9 can be moved vertically by a jack 11 pivoted to a lever 12 which engages under a collar 14 on the duct. A sealing bellows 10 is arranged between the duct 9 and the top of the furnace, and the nozzle 18 is preferably removably mounted on the plate 16.
Patent GB-866990-A (GB)
Title: Submarine echo-sounding apparatus for fishing vessels
Inventor: WOODGATE RALPH WILLIAM
IPC: G01S15/96
Filed: 1958-03-20
Abstract: 866,990. [Echo-sounding apparatus; valve pulse generating circuits. PYE Ltd. March 20, 1959 [March 20, 1958], No. 8970/58. Classes 40(6) and 40(7) In a fish-finding echo-sounding apparatus echo signals produced by the sea bed and objects adjacent thereto are selected by a gating circuit, the selected signals are detected and fed through two paths, one path produces an output pulse in response to adjacent-object echoes, the other path produces an output pulse in response to sea bed echoes, and the two output pulses are applied to a coincidence gate whose output pulse operates an audible or visual indicator. Receiving transducer signals are gated in valve V1 by known pulses applied to input 2 to select sea bed and adjacent echoes which are then detected and amplified by valve V3A, Fig. 2c, the output of which triggers Miller transitron V5/V7A to produce, after differentiation by circuit C2, R3, waveform, Fig. 2f, at an input of coincidence gate -V9. Miller transitron V6 is triggered by an input derived from detector MR1 output to give an output, Fig. 2h, the leading edge of which is adjusted by resistor RV1 to coincide with the leading edge of the bottom echo, and the duration of which is adjustable by potentiometer RV2 so that only when a fish shoal is adjacent to the sea bed will loudspeaker LS be energized. Valve V10 output may be applied to a recording device or a counter. The gating pulses applied to input 2 may be generated from the sea bed echoes.
Patent GB-1437739-A (GB)
Title: Shock absorbing bumper mount
IPC: B60R19/30
Filed: 1974-02-27
Abstract: 1437739 Vehicle bumpers SHERMAN UNIVERSAL CORP 27 Feb 1974 8991/74 Heading B7J [Also in Division F2] A telescopic shock absorber mounting a vehicle bumper 22<SP>1</SP> comprises a cylinder 10<SP>1</SP>, a piston 21<SP>1</SP> slidable in the cylinder and connected to a piston-rod 18<SP>1</SP>, an elastomeric member, e.g. a sleeve 52<SP>1</SP> slidable in the cylinder with one end engaging the piston, a slide 32<SP>1</SP> slidable in the cylinder and interposed between an in-. flatable bag 24<SP>1</SP> and the outer end of the sleeve, and means 35<SP>1</SP> on the slide engageable with the sleeve to force it against the cylinder and provide a frictional resistance to movement of the piston into the cylinder. In the embodiment of Figs. 1-3 (not shown), the conical section 35<SP>1</SP> of the slide is connected to a shaft (36) which extends through the bore 53<SP>1</SP> in the sleeve 52<SP>1</SP> and into the hollow pistonrod 18<SP>1</SP>, and a spring (46) inside the piston-rod acts between the piston and a plate (48) on the shaft to urge the conical section 35<SP>1</SP> into engagement with the sleeve 52<SP>1</SP>.
Patent GB-165525-A (GB)
Title: Improvements in and relating to machines for brushing or treating hosiery fabrics and the like
IPC: D06G1/00
Filed: 1920-03-27
Abstract: 165,525. Park, J. H. March 27, 1920. Pile, raising. - A machine for raising pile or nap on fabrics as a whole or on particular parts only, has a rapidly revolving carding-roller B and a slowly moving plain roller A, mounted in end frames a and geared together by worm gearing F. A feedregulating roller E, mounted between side links d pivoted on the end frames at e, is normally pressed on the large roller A by springs j so that the fabric is nipped between the two rollers and is retarded against the forward pull of the carding-roller B. The roller E may be raised by a link f connected to a treadle, when the carding-roller may draw the fabric through at its own peripheral speed without raising nap. The carding-roller may be adjusted up or down to suit different fabrics by a handle v.
Patent GB-951666-A (GB)
Title: Conduit gate valve
Inventor: FENNEMA RICHARD
IPC: F16K3/02
Filed: 1961-03-13
Abstract: 951,666. Valves. CRANE CO. March 13, 1961, No. 9055/61. Heading F2V. A valve comprises a body having aligned inlet and outlet passages 7 with a central valve chamber therebetween, coaxial seating recesses 11 defined by inwardly extending annular projections at the ends of the passages, axially movable seat rings 8 in the recesses, a ported closure member 9 movable transversely of the passages to open and close the valve, shoulder portions 21 on the seat rings, and resiliently mounted rings 16 around the seat rings having inwardly directed flanges engaging the portions 21. Fluid pressure in the passages 7 acting on the outer ends of the seat rings 8 increases the pressure urging them against the closure member. Several coil springs 23 are tack welded to each ring 16 and abut annular washers 24 while each seat ring 8 is fluid sealed within its recess by an 0-ring 25 and carries, preferably by means of a dovetail attachment, a ring 26 of non-metallic and preferably ductile material. The closure member 9 is connected at 27 to the T-head of a stem 40 reciprocated manually or by motor or fluid-pressure means, the valve chamber being packed with lubricant by a grease gun. A threaded plug at the bottom of the chamber permits it to be drained and cleaned. Specification 752,228 is referred to.
Patent GB-581569-A (GB)
Title: An improved process for the production of graphite
IPC: C01B31/00
Filed: 1942-07-01
Abstract: Finely divided carbon is obtained by passing carbon monoxide over an iron catalyst at 750-1100 DEG C and preferably 850-900 DEG C.  The catalyst is preferably superficially oxidised mild steel wire. The product is purified from iron by heating in a stream of chlorine or by extraction with acid.
Patent GB-997495-A (GB)
Title: Oxidation products of 1-benzyl-tetrahydroisoquinolines
IPC: C07D217/20
Filed: 1963-03-07
Abstract: Alkaloid-like oxidation products are obtained when a quaternary N-alkyl-1-benzyl-1,2,3,4-tetrahydroisoquinolinium salt of the formula <FORM:0997495/C2/1> where R represents an alkyl radical of up to 4 carbon atoms, R1, R2 and R4, the same or different, represent hydroxy groups or alkoxy groups of up to 4 carbon atoms, R3 represents a hydrogen atom, a hydroxy group or an alkoxy group of up to 4 carbon atoms and X represents a univalent anion, is subjected to mild oxidation in aqueous solution at a pH of from 4 to 10, said solution being 0.001 to 0.01 molar.  The process is preferably carried out at 20 DEG  to 90 DEG  C.  Oxidizing agents which may be used are all such agents which can be applied to an aqueous solution or suspension.
Patent GB-1519243-A (GB)
Title: Rudder arrangement for a ship
IPC: B63H25/38
Filed: 1976-03-08
Abstract: 1519243 Rudder arrangement WERFTUNION GmbH & CO 8 March 1976 [8 March 1975] 09190/76 Heading B7V A rudder arrangement for a ship comprises two balanced rudders situated behind a propeller the rudders each comprising an asymmetrically profiled element. The rudders may be deflected in the same angular direction to effect steering of the ship or they may be deflected in opposite directions to effect a braking action on the ship or to cause rearward travel of the ship. Various asymmetric profiles and dimensions of the rudder elements are disclosed in the Specification together with details of end plates which may be attached to the ends of the rudder elements. The rudder arrangement may be used in conjunction with a jet housing in which the propeller is situated, details of which housing are also disclosed. A respective rudder arrangement may also be located astern of each of two propellers of a twin propeller ship and the postions of the respective axes of rotations of the rudders may be staggered in the fore and aft directions.
Patent GB-609924-A (GB)
Title: Improvements in or relating to the manufacture of pyrazine
IPC: C07D241/12
Filed: 1946-03-25
Abstract: Pyrazine is made by vapour phase dehydrogenation of piperazine in presence of a dehydrogenation catalyst such as copper, nickel, and oxides of zinc or cadmium, alone or together with one another or with chromic oxide.  Carriers of neutral or basic character such as cement or oxides and carbonates of alkaline earth metals or magnesium may be used.  Temperature is 250-550, preferably 300-450 DEG  C., at atmospheric or reduced pressure.  The piperazine may be diluted with inert gases such as steam or nitrogen.  The catalyst can be regenerated by air oxidation, followed by reduction.  In examples: (1) copper oxide pellets are reduced in hydrogen, and piperazine vapour and steam passed over at 440 DEG  C.; (2) a catalyst prepared by precipitation with soda from a solution of copper and cadmium nitrates in presence of magnesia, impregnation with potassium carbonate, pelleting with cement, and drying, is treated with hydrogen at 300-350 DEG  C., and then used at 335-345 DEG  C. as in (1).  Specification 387,507 is referred to.
Patent GB-329088-A (GB)
Title: An extensible roof attachment for motor cars, caravans and the like
IPC: B60P3/34
Filed: 1929-03-22
Abstract: 329,088. Tilly, J. E., and Skinner, A. T. March 22, 1929. Folding vehicles; caravans.-A motor car or caravan is provided with an additional roof portion which is adapted to be slid outwardly so as to provide additional roof cover behind the car or caravan. As shown applied to the caravan described in Specification 271,388 the additional roof 4 is slid rearwardly and is supported by props 14 and guy ropes 15. The roof 4 is provided with depending walls 7 and doors 8. Various forms of roof guides are described and the walls depending from the roof may be of canvas.
Patent GB-542219-A (GB)
Title: Improvements in cathode ray tubes, particularly for television transmission
IPC: H01J31/34
Filed: 1940-05-27
Abstract: 542,219. Cathode ray tubes. MARCONI WIRELESS TELEGRAPH CO., Ltd. May 27, 1940, No. 9295. Convention date, May 27, 1939. [Class 39 (i)] In a television transmission cathode-ray tube the screen such as the photo-sensitive mosaic electrode 2 is scanned by low velocity electrons from a gun 3 the line deflection being effected by electrostatic plates 16, 17 wholly within a magnetic field produced by the electromagnet 18 ; to obtain uniform resolution of the picture over the whole of the mosaic the plates 16, 17 are formed to give a field which first increases substantially uniformly in intensity then remains uniform and finally decreases uniformly. By this means the transverse velocity of the electrons which produces the spiral path along the magnetic field is restricted to the initial velocity at emission and the helix remains of small diameter. The curved parts of the plate are preferably hyperbolic and their lengths are related to the helices formed by the electrons ; these parts may be separated by straight portions. In a modification the electrons pass between pairs of plates 21, 22 and 23, 24, Fig. 4a at the average potential of the deflecting plates 16, 17; the edges of these pairs are separated a distance a equal to an integral number of helices and in consequence by adjustment of the tube parameters the electrons may be made to enter and leave the deflecting field without any transverse velocity component additional to that obtained at emission. To prevent fringing the plates in each pair should be closed. To restrict the electro-static field of the deflecting plates a slotted screen 25 is placed between the target and plates 16, 17; an electrode 8 catches electrons not formed into the beam by the gun and a wall coating 27 is also provided. The frame deflection is effected by the electromagnetic coils 19, 20. U.S.A. Specifications 2,020,305 and 2,065,570 are referred to.
Patent GB-1164246-A (GB)
Title: Improvements in or relating to Steering Arrangements for Use on Bicycles.
IPC: B62K21/16
Filed: 1968-02-27
Abstract: 1,164,246. Cycle handlebars. NITTO HANDLE WORKS CO. Ltd. 27 Feb., 1968 [30 Sept., 1967 (2)], No. 9369/68. Heading B7E. A stem 1 mounts a forwardly extending part 4 which adjustably clamps a handlebar 5, and handles 8 having cylindrical head portions 9 are angularly adjustably positioned on the bar 5 by means of clamping bolts 11 which interengage teeth 10 on the members 9 with teeth 15 on parts 13 fixed to the ends of the bar 5. Marks 16, 17 and 18, 19 indicate the relative positions of the adjustable parts.
Patent GB-549383-A (GB)
Title: Improvements in or relating to the cylinders and crank cases of internal combustion engines
IPC: F02F7/00
Filed: 1941-07-24
Abstract: 549,383. Crank cases ; cylinders ; regulating. JACKSON, L. MELLERSH-. (McCarthy, M. E.). July 24, 1941, No. 9397. [Classes 7 (ii) and 7 (vi)] The crank case 20, 29 made of aluminium or other light material has formed integrally therewith one end 15 of the engine cylinders, the main parts of which are constituted by cast-iron portions 17, arranged in alignment with the parts 15 and centred in relation thereto by rings 26 entering grooves 25 formed in the adjacent ends of the cylinder parts. The rings are formed with inlet ports 31 coinciding more or less with corresponding ports 27, the effective port area being adjusted by rotation of the rings 26. The inlet ports 31 and exhaust ports 42 are controlled by corresponding ports 40, 41 in sleeve valves 33, which may be integral with cylinder heads 34, or may slide thereover. The intake air is drawn by superchargers into a chamber 19 through scoops 70, and is discharged into inlet chambers 28, and cooling-water is circulated through manifolds 50, 51, as described in Specification 549,382.
Patent GB-457369-A (GB)
Title: Improvements in or relating to sheet metal walls and/or partitions for aircraft
IPC: B64C1/00
Filed: 1936-03-30
Abstract: 457,369. Aircraft framework. DORNIER METALLBAUTEN GES., Friedrichshafen, Germany. March 30, 1936, No. 9410. Convention date, June 29, 1935. [Class 4] [See also Group X] In a sheet-metal wall or partition 1 for aircraft having on one side laterally flanged strengthening members 2, 3 having in section a U-shaped profile, the members are joined together at their points of intersection by cross-connectors or straps 4, the arms of which are shaped to conform to the shape of the profiled reinforcing members 2, 3. Where one profiled section reinforcing member is at a different level from the other, the arms of the cross straps are arranged at different heights. The flanges of the members 3 are flattened out at the points of intersection with the members 2.
Patent GB-526771-A (GB)
Title: Improvements relating to the automatic control of variable conditions
IPC: G05B11/26
Filed: 1939-03-25
Abstract: 526,771. Automatic control systems. KENT, Ltd., G., and IVANOFF, A. March 25, 1939, No. 9423. [Class 38 (iv)] Variables in general.-An " on-off " controller. e.g., a fluid valve, is operated so that it remains constantly in one of its extreme positions when the sense of the deviation of a variable from a desired value is the same as the sense in which the variable is changing, but alternates between these positions to obtain a median effective setting when these two senses differ. A switch 4 is operated at a frequency high compared with the natural frequency of the variable, so that a switch member 9 responsive to the deviation and a switch member 17 responsive to the sense in which the variable is changing are effective for equal (or different) alternating periods, upon the electrical operating mechanism B of the valve V; the relation between the periods may be dependent on the magnitude of the deviation and the rate of change of the variable. An arm 13 moves a spindle 12 anti-clockwise in accordance with an increase in the value of the controlled quantity and carries with it a cam 11 and one element of a slipping clutch 18 actuating the member 17 against a contact 15, so long as the quantity is increasing, and against a contact 14, whilst it is decreasing. A cam 10 loose on the spindle 12 is adjusted to set the desired value of the quantity and engages one of two limbs 6, 7 of a bifurcated arm on a pivot 8 carrying contacts 1, 2 with which a contact 3 on the arm 9 co-operates. Thus the contacts 1, 3 engage when the variable is below the desired value and the contacts 2, 3 when above. To avoid errors due to the time taken by the arm 17 in transferring its contacts 16 from engagement with contact 14 to contact 15 or vice versa a contact 21 is arranged to energize a heating coil on the arm 17 which, being bimetallic, is carried suddenly by flexure on heating and on cooling, from one contact to the other in the time normally taken by the variable in changing its trend, i.e., one half cycle of change.
Patent GB-760974-A (GB)
Title: Improvements in regenerative furnaces
IPC: F28D17/00
Filed: 1954-03-31
Abstract: 760,974. Thermal regenerators. INCANDESCENT HEAT CO.. Ltd., and FALLON, J. T. March 31, 1955 [March 31, 1954], No. 9461/54. Class 64(1) Part of the exhaust gases impelled by a blower 33 through the exhaust pipe 34 of a pair of furnace regenerators 13, 14 having a reversing valve 28 is re-circulated through pipes 39, 38 back to the hot end of the heat-receiving regenerator so as to dilute and cool the gases passing from the furnace chamber 11 to that regenerator. Pipes 23, 24, 26, 27 connect the reversing valve housing 25 to the cold ends of the regenerators 13, 14, the inlet of the exhaust blower 33, and the outlet of an air supply blower 36. The reversing valve 28 is so linked to valves 43, 44 in the duct 38 that the returned gases are directed to the regenerator which is discharging to the exhaust. Valves 40, 41 respectively regulate the proportion of gases returned to the regenerator and the inlet of any fresh air necessary to complete the combustion of and to cool the exhaust gases. Alternatively or additionally, air may be taken' from the air-heating regenerator to complete combustion of the exhaust gases. The hot ends of the regenerators are connected through ducts 17 and passages 18, 19 to combustion chambers 20 at the sides of the furnace chamber 11. Fuel is supplied to burners 21 through pipes 22a (not shown), 22b regulated by valves which are opened and closed when the valve 28 is reversed. The reversing cycle may be controlled by clockwork or by thermo-couples 50, 51 at the hot ends of the regenerators. The clockwork or thermocouples control a device regulating the excitation of electromagnets acting on the fuel valves and on a pneumatic reversing valve controlling the supply of compressed air to either end of a pneumatic jack 30 which moves the valves 28, 43, 44. Each regenerator comprises metal tubes packed in a lagged cylindrical metal casing.
Patent GB-538507-A (GB)
Title: Automatically reversible free-wheel or one-way locking device
IPC: F16D41/10
Filed: 1940-06-01
Abstract: 538,507. Locking-devices. IFIELD, R. J. June 1, 1940, No. 9595. Addition to 492,587. [Class 103 (i)] In a reversible one-way locking device according to the parent Specification the roller &c. cage 29 has a lostmotion connection with a non- rotatable part and is engaged with the abutment member 25 (providing the double-inclined surfaces with which the rollers 27, 28 co-act for the one-way locking of the elements 30, 31) by one or more spring-pressed V-teeth or equivalently, the lost-motion connection and the V-tooth engagement being timed in relation to the opposed inclines on the abutment member so as to prevent the member from remaining in an intermediate position when a temporary torque increase occurs. The lostmotion connection may be provided by a part 38 at the end of an axially-directed pin 35 projecting into a slot 39 in the base of the cage, which also carries spring detents 40 co-acting with V-teeth at the inner periphery of the abutment member 25 for causing the rollers to co-act with the inclined surfaces on the abutment member 25. The abutment member is controlled by the engagement of projecting teeth 32 with corresponding teeth 33 on a spring-pressed reaction member held against rotation, and the'reaction torque arising from reversal of the drive causes the teeth 32 to over-ride the teeth 33, the rotation being completed by the pressure of the reaction-member 34, the spring 37 of which overcomes the springs of detents 40 to allow engagement with the other sides of the co-acting teeth. The detents may be axially disposed. The roller cage may alternatively be biassed by compression springs, which are at maximum tension when at the central position so as to be then unstable.
Patent GB-1210869-A (GB)
Title: Improvements in or relating to fork lift trucks
IPC: B66F9/22
Filed: 1968-02-29
Abstract: 1,210,869. Masted lift trucks. OFFICINE CEVOLANI, S.p.A. 29 Feb., 1968 [28 Oct., 1967], No.9745/68. Heading B8H. The hydraulic ram 10 for raising the fork 4 of a pedestrian-controlled lift truck is supplied with fluid from a reservoir 12 by means of a pump 11 driven by an electric motor 13 or, alternatively, by means of a pump 19 which is driven by a reciprocating pneumatic motor 21, 28. As shown, a further pump 20, actuated by a pedal or hand lever 39, is provided. The motor 21, 28 and valve assembly 35 are actuated by a compressed air reservoir 24 which may be pressurized by a connection 22 to a compressedair line or by means of an electric motor driven pump. A solenoid valve 43 is provided to prevent actuation of the pumps 19, 20 when the motor 13 is connected by a plug 14 to a power supply.