baber/WOPTO huggingface dataset:
Patent GB-856975-A (GB)
Title: Gas turbine power units for helicopters
Inventor: MORLEY ARNOLD WILLIAM
IPC: B64C27/12
Filed: 1957-08-07
Abstract: 856,975. Helicopter propulsion systems. NAPIER & SON Ltd., D. July 16, 1958 [Aug. 7, 1957], No. 24930/57. Class 4. [Also in Group XXVI] A helicopter power unit has at least one engine comprising a turbine-driven air compressor which supplies compressed air to a combusition chamber or chambers, and a power turbine mechanically coupled to the helicopter rotor and supplied with combustion products from the said chamber or chambers, said power unit including means for delivering an additional supply of compressed air from the said air compressor or from a turbine-driven auxiliary compressor, to and through the rotor blades for discharge as propulsive jets at or near the blade tips, this additional compressed air by-passing the said combustion chamber or chambers. In Fig. 1 a gas turbine power unit is mounted vertically in a helicopter to drive rotor 18, 19, the unit comprising a multi-stage compressor 10, combustion chambers 12 and turbine 13. Combustion gases drive a free turbine 15 coupled through reduction gearing 17 to the rotor head 18. A tapping 20 from compressor 10 is controlled by valves 21 to supply air to conduits 22 which connect through rotary seals 24 with ducts 26 leading to tip propulsion nozzles in the rotor blades. When increased power is to be delivered to the rotor, valves 21 are opened and to compensate for the consequent reduction in air flow to the combustion chambers more fuel is supplied to the chambers to raise the heat-drop across turbine 13 thereby increasing its speed and the mass of air passing through compressor 10. In a number of alternative embodiments the air for the tip jets is obtained from a compressor separate from the main power unit. In Fig. 2 two power units 31, 32 similar to the power unit of Fig. 1 but without turbine 15, respectively connect through shafts 34, 35 ; fluid couplings 36, 37 ; freewheels 38, 39 and pinion and spur gearing 40, 41, 33 to drive a tail rotor shaft 43 and, through gearing 44, 45 a main rotor shaft 46. Gear 40 drives through a fluid coupling 49 on auxiliary compressor 47 which supplies air to the rotor tip jets. A schematic control system for a power unit such as shown in Fig. 2 is illustrated in Fig. 6. Air for the rotor tip jets is supplied by an auxiliary compressor 85 driven through fluid coupling 84 and fuel for the tip jets is supplied by a fuel pump 87 through metering valve 92 and line 93 to burners 94. In operation torque meters 80 detect a fall in torque of either of two engines and operate a valve 83 to supply liquid to coupling 84 and thereby bring compressor 85 into operation. The torque meters also generate a signal to bring fuel pump 87 into operation and to operate a spark generating device 88 connected to spark plug 96. A venturi 89 in air line 90 controls a flow meter 95 which adjusts metering device 92 to suit the flow of air to the combustion chamber. Specification 761,442 is referred to.
Patent GB-212588-A (GB)
Title: Improvements in or relating to reciprocating engine arrangements
IPC: F02B73/00
Filed: 1922-09-15
Abstract: 212,588. Lucas, S. J. Sept. 15, 1922. Motor power plant.-A balanced arrangement of engine units for locomotives comprises a pair of parallel crank shafts with the respective cranks maintained at 180‹ to each other and sets of opposed and aligned cylinders, the parts being so arranged that the total weights of the reciprocating parts associated with each crank shaft are equal and that the piston movements are equal and opposite, wherein the crank shafts are each geared to a jack crank shaft arranged to drive a coupling rod system through which the drive is transmitted to the running wheels. The Figure shows an arrangement in which crank shafts a<3>, a<4>, to each of which four pistons are connected, drive through gearing h, i and h<1>, i<1> jack shafts f<1>, f<2> which are connected by a coupling rods j with the locomotive driving wheels k. Engines using steam and combustion products may be used.
Patent GB-212952-A (GB)
Title: Improvements in and relating to aircraft wings
IPC: B64C23/00
Filed: 1922-09-15
Abstract: 212,952. Hushes, J. A. Sept. 15, 1922. Planes, construction of; steering and balancing.- An aircraft with superposed planes has shutters pivoted about transverse axes arranged within the gap at the rear edges of the planes so as to control the flow of air through the gap. Additional shutters pivoted about longitudinal axes are arranged in the lower wing and are opened when the other shutters are closed to give a cushioning effect when landing. Fig. 2 shows a front view of an aeroplane having planes a, b bent at their ends to meet at c. Mounted in the gap at the rear edges of the planes are balanced shutters g pivoted about axes h which are provided with pinions engaging racks connected to levers k, Fig. 4, on transverse shafts l. Hooked joints may be introduced into the shafts l. The shafts l on the two sides of the machine are connected by levers m and links q to two levers t provided with latches o engaging toothed quadrants p to enable the shutters g on the two sides of the machine to be independently operated for steering. Alternatively the racks may be operated by cords or chains passing around a pulley on a control lever, or worm gear may beused. Shutters s pivoted about longitudinal axes in the lower plane are operated by a separate lever. In one modification the whole of the shutters g are operated by one lever. The controls for the two sets of shutters may be locked to operate together. The wings in plan and side elevation may have a curved taper from front to back and in front elevation they may diverge towards the fuselage. The spaces not occupied by shutters at the rear of the wings may be closed.
Patent GB-1315104-A (GB)
Title: Benzindene- and tetrahydronaphthalene derivatives
IPC: C07C45/46
Filed: 1971-04-19
Abstract: 1315104 Perfumes L GIVAUDAN & CIE SA 19 April 1971 [25 March 1970] 25231/71 Heading A5B [Also in Division C2] A perfume composition comprises a compound of the formula: wherein R 1  and R 2  are hydrogen or methyl provided that when R 1  is hydrogen R 2  is methyl and when R 1  is methyl R 2  is hydrogen (see Division C2). In Examples: A cologne base formulation comprises 1, 4, 6, 6, 7, 9, 9- heptamethyl-1, 2, 6, 7, 8, 9-hexahydro-3H- benz (e) inden-3-one (III) and a musk-wood formulation comprises 4-ethyl-1, 6, 6, 9, 9-pentamethyl-1, 2, 6, 7, 8, 9-hexahydro-3H-benz (e) inden-3-one (IV).
Patent GB-797294-A (GB)
Title: Manufacture of aromatic polyester solutions and of shaped articles therefrom
Inventor: HOLLAND HAROLD GRAHAM
IPC: C08J3/09
Filed: 1955-09-02
Abstract: Shaped articles, such as filaments and films, of aromatic polyesters, e.g. highly polymeric polymethylene terephthalates or isophthalates, are made by spinning or extruding a solution in a solvent comprising at least one chlorinated acetic acid into a liquid bath which is a nonsolvent for the polyester.  The solution may be spun or extruded at room temperature or at an elevated temperature below the boiling point of the solvent.  The liquid bath, which may be water or low-boiling alcohols, e.g. ethanol and isopropanol, used in any desired mixture or alone or mixed with water, may also be kept at room temperature or at a slightly elevated temperature below the boiling point of the liquid used in the bath.  The filaments or films are dried after leaving the bath and may be drawn to several times their length as spun, preferably at an elevated temperature above the second order transition temperature of the polyester, before or preferably after drying, care being taken that the solvent has been removed by the liquid bath or preferably by a separate washing step. The process makes it possible to shape polyesters having unusually high intrinsic viscosities, e.g. 0.91-1.2, which could not be shaped by melt-spinning or meltextrusion techniques.  Blending of polymers which would react together at melt-spinning temperatures, e.g. two or more polymeric polymethylene terephthalates and (or) isophthalates or polyethylene terephthalates of widely differing intrinsic viscosities, may be carried out by dissolving them in a solvent comprising at least one chlorinated acetic acid, without causing a chemical change or redistribution of molecular weight. The shaped articles may be dyed by the mass dyeing technique using dyes which are heat-sensitive and could not therefore be used in a melt spinning process.  U.S.A. Specification 2,710,848 is referred to.
Patent GB-979755-A (GB)
Title: Improvements in or relating to a stainless steel member
IPC: C23C8/80
Filed: 1962-07-02
Abstract: Stainless steel surfaces (e.g. flat rolled strips or sheets or architectural members) having a metal oxide coating, are further coated with an alkali metal silicate by spraying, dipping, roller or flow coating.  The metal oxide may be obtained by heating the stainless steel in air (e.g. 450  DEG F. and above), molten salts or solutions, or oil baths or by electrolytic treatment, e.g. in sodium hydroxide solutions as described in U.S.A.  Specification 2,957,812 The thicknesses of the metal oxide and silicate coatings are between 100 and 1000 <\>rA and not greater than 0.001 inch respectively.  The coatings may be baked. The silicate is applied in the form of an aqueous solution which solution may contain a wetting agent, e.g. diamyl sodium sulphosuccinate and sodium lauryl sulphate.  The strips and sheets may be cold rolled, annealed, pickled and polished before being coated.  In the examples, stainless steel panels are cleaned with alkaline cleaner, rinsed, heated at 1000  DEG F. and above, cooled, dipped in, sprayed with or roller- or flow-coated with, a sodium silicate solution and baked.  Specification 974,886 is referred to.ALSO:Stainless steel surfaces (e.g. flat rolled strips or sheets or architectural members) having a metal oxide coating, are further coated with an alkali metal silicate by spraying, dipping, roller or flow coating.  The metal oxide may be obtained by heating the stainless steel in air (e.g. 450  DEG F. and above), molten salts or solutions, or oil baths or by electrolytic treatment, e.g. in sodium hydroxide solutions as described in U.S.A. Specification 2,957,812.  The thicknesses of the metal oxide and silicate coatings are between 100 and 1000   and not greater than 0,001 inch respectively.  The coatings may be backed.  The silicate is applied in the form of an aqueous solution which solution may contain a wetting agent, e.g. diamyl sodium sulphosuccinate and sodium lauryl sulphate.  The strips and sheets may be cold rolled, annealed, pickled and polished before being coated.  In the examples, stainless steel panels are cleaned with alkaline cleaner, rinsed, heated at 1000  DEG F. and above, cooled, dipped in, sprayed with or roller- or flow-coated with, a sodium silicate solution and baked. Specification 974,886 also is referred to.
Patent GB-671437-A (GB)
Title: Improvements relating to dye jiggers and like machines
IPC: H02P25/18
Filed: 1949-10-03
Abstract: 671,437. Control of two D.C. motors. NORTON & CO., Ltd., Sir J. F., and NORTON, W. J. June 26, 1950. [Oct. 3, 1949] No. 25346/49. Class 38 (iii). The D.C. motors of a dye jigger have their rates of acceleration limited for a predetermined period of time when starting up from rest. The rollers of the dye jigger are driven by motors 1, 2 one of which is normally connected to the A.C. supply mains over rectifier 11, whilst the other is connected across resistors BR, DBR1, as a braking generator. The field winding of both machines are supplied from a further rectifier 5 via a field regulator 14 which is gauged with the armature regulator 13. When starting from rest, a resistance is temporarily inserted in the motor armature circuit and the load on the braking generator is temporarily increased. Closing forward push button F energizes relay FR, which closes contacts 21,22; to energize contactors AFC, FFC. Contactor AFC also closes a contact 23 to energize a timing relay TR which first opens contact 16. Thus the armature 2 is connected to the supply in series with the whole of resistor 13, and armature 1 is connected across resistor DBR1. After a predetermined delay, relay TR closes contact 28 to energize contactor BC, which closes contact 18 and opens contact 17, thus cutting out part of resistor 13, and including resistor BR in the braking circuit. The relays and contactors also have self holding circuits and interlocking contacts with the reversing circuits. The reverse operation is similar to the above. For automatic operation, push button A is closed to energize relay AR to close contacts 36, 37 short circuiting relays FR and RR. These circuits however also include normally open contacts 38 and 39 each of which closes only when the corresponding roller is empty so that relays FR, RR are energized alternately. A contact 27, actuated by relay TR at each reversal, controls a counter C which moves an arm 40 over a predetermined number of contacts before breaking the circuit of relay AR. When the motors are switched off and the relay TR is de-energized, contact 16 is closed to connect resistor DBR2 across both motors to stop the machine.
Patent GB-384003-A (GB)
Title: Improvements in and relating to electromotors for the driving of screw fans
IPC: H02K5/167
Filed: 1931-09-10
Abstract: 384,003. Lubricating electromotors. ADAMCIKAS, M., MASSERA, G., Astor House, Aldwych, London, and STONE, J. M., 26, Rue des Lyonnais, Paris. Sept. 10, 1931, No. 25437. [Classes 12 (i) and 12 (iii).] The streamlined body of the motor of an electric fan comprises a central section 1 and end brackets 3 fitted with bearing bushes 7, 12 for the shaft 2, the brackets being formed with chambers 8, 13 containing wool soaked with oil which is fed through holes to the bearing surfaces by pairs of felt wicks 9 mounted on U-shaped springs 10. A thrust bearing for the shaft comprises a ball 17 held against the end of the shaft by a plug 16 adjustably screwed in the end of the bush 12. The front chamber 8 is closed by a cover 5 while the rear chamber 13 is formed between the rear bracket 3 and a cap 19 screwed on the end of the bush 12. Ventilating holes 23 for the motor interior are provided in the brackets 3.
Patent GB-967917-A (GB)
Title: Improvements in or relating to domestic wall cabinets
IPC: D06F81/06
Filed: 1962-07-04
Abstract: 967,917. Brackets; combination furniture. J. S. SANDER. July 2, 1963 [July 4, 1962], No. 25578/62. Headings A4B and A4H. In a combined cabinet and ironing board the ironing board 4 is hinged to a member 5 dividing the cabinet 1 into two compartments 2, 3 and is secured to a door part 8, an upper door part 10 being hinged thereto to form a strut to support the board in its ready for use position. The electric iron is housed in the lower compartment 2 when not in use.
Patent GB-704915-A (GB)
Title: Improvements relating to gramophone pick-up arms
IPC: G11B3/20
Filed: 1951-11-02
Abstract: 704,915. Supporting gramophone pick-ups. COLLARO, Ltd., COLLARO, C., and GIBSON, J. B. Oct. 21, 1952 [Nov. 2, 1951], No. 25716/51. Class 40 (2). In a gramophone pick-up arm, spring counterbalancing means is provided which, by a toggle link mechanism, is adjustable in accordance with the kind of record to be played, namely, standard records or long-playing records. The counterbalancing means takes the form of a coiled tension spring 17 connected between a pin 22 mounted on the arm 10 and a lug 18 on a bracket 12 carrying a pivot 11 about which the arm is movable in a vertical plane. The pin 22, which is movable in a slot 23 in a plate 19 secured to the arm 10 by a screw 20, is mounted on a link 24 which, with a link 25 pivoted at 26 on plate 19, forms a toggle whereby the spring 17 may be tensed, as shown in Fig. 4, for use with long-playing records, or relaxed to the position shown in Fig. 3, for use with standard records. The toggle members are moved to either position by means of a lever 27 which. forms one limb of a bellcrank lever with link 25. The lever 27 may be provided with indication lugs 32, 33 to show which kind of record may be played. The plate 19 is slotted at 21 to permit fine adjustment of its position by means of an adjusting screw 29. Specification 704,895 is referred to.
Patent GB-926516-A (GB)
Title: Method of producing molybdenum disulphide powder suitable for use as a lubricant
IPC: C01G39/06
Filed: 1959-07-28
Abstract: Molybdenum disulphide, suitable as a lubricant is prepared by extracting from powdered molybdenite by froth flotation with a flotation oil, a molybdenum disulphide powder containing less than 8% silica and from 0,5 to 6% flotation oil, and then reducing the residual oil content to 0,05 to ,5% by evaporation.  The powder obtained may be pulverized in a fluid energy mill and the residue of oil inhibits oxidation.  Preferably the flotation oil has an end boiling point above 250 DEG C.  Reference is made to the use of pine oil together with kerosene or pine tar oil. Evaporation may be effected in an inert atmosphere of nitrogen or carbon dioxide at temperatures from 800 DEG -1350 DEG F.ALSO:Molybdenum disulphide, suitable as a lubricant, is prepared by extracting from powdered molybdenite by froth flotation with a flotation oil, a molybdenum disulphide powder containing less than 8% silica and from 0.5 to 6% flotation oil, and then reducing the residual oil content to 0.05 to 0.5% by evaporation.  The powder obtained may be pulverized in a fluid energy mill and the residue of oil inhibits oxidation. Preferably the flotation oil has an end boiling-point above 250 DEG C.  Reference is made to the use of pine oil together with kerosene or pine tar oil.  Evaporation may be effected in an inert atmosphere of nitrogen or carbon dioxide at temperatures from 800-1350 DEG  F.
Patent GB-1499088-A (GB)
Title: Hot gas engine comprising a power control pump
IPC: F02G1/05
Filed: 1976-06-22
Abstract: 1499088 Hot gas engines FORENADE FABRIKSVERKEN 22 June 1976 [7 Aug 1975]  25865/76 Heading F1S The invention relates to a hot gas engine comprising a first piston 4 adapted to reciprocate in a first cylinder 1 which is kept at a relatively lower temperature level and a second piston 9 adapted to reciprocate in a second cylinder 2 which is kept at a relatively higher temperature level, the two pistons forming parts of the boundaries of an enclosure containing a working gas charge and the enclosure being associated with a cooler 16, a regenerator 17 and a heater 18. According to the invention a power control pump having a pump piston 19 reciprocating in a pump cylinder 20 is provided for pumping gas from the working charge into a gas reservoir 26, the first piston 4 at its outer side operating the pump piston 19, a pump cylinder outlet conduit 21 with a non-return  valve 22 leads from the pump cylinder 20 to the gas reservoir 26 and a non-return valve governed passage 23 leads to the pump cylinder from a part of the enclosure located between the cooler and the first piston. As shown, the means for power control may include a valve controlled by-pass conduit 28 whereby the non-return valve 24 may be by-passed. The working medium may be hydrogen or helium.
Patent GB-1499464-A (GB)
Title: Connector for withdrawing samples from a closed liquid drainage system
IPC: A61M1/00
Filed: 1976-06-22
Abstract: 1499464 Sampling connector for closed liquid system KENDALL CO 22 June 1976 [26 June 1975] 25923/76 Heading F2P A connector for a closed urine drainage system for withdrawal of a sample from the system comprises a tubular one-piece body 36 having an opening 48 in its wall, a flexible closure member 50 including a plug 52 positionable in the opening 48 to form a seal therewith with its inner surface corresponding with the body inner wall, the closure member being capable of puncture by a hollow needle N and re-sealing after withdrawal of the needle and means for securing the closure member to the body. In the embodiment shown the closure 50, made for example of latex, includes a band 60 which extends around the body 36 to secure the closure member in place and has a rib 58 to indicate the region within which the closure member should be punctured. A further opening or openings in the body 36 sealed by further closure member or members may be provided (Fig. 4, not shown). In a further embodiment (Figs. 6 to 8. not shown) the tubular body member has a recess to receive and locate the closure member., the latter being secured by a plastics retaining member welded to the body member.
Patent GB-322784-A (GB)
Title: A casting bed for the production of films from solutions of plastic masses, especially for obtaining viscose films
IPC: B29C41/24
Filed: 1928-09-10
Abstract: 322,784. Hampel, H. Sept. 10, 1928. A casting bed for the manufacture of films from solutions of plastic masses, particularly viscose, by coagulation in acid or other corrosive precipitating bath, consists of a layer of paraffin or mineral wax, resins, tars, bitumens, soft kinds of rubber or a mixture of these with each other or with suitable fillers, such as textiles, cellulose products, wood, cork or mineral meals, mounted on an endless body with a non-flexible surface, for example a roller, In the apparatus-shown in Fig. 1, the casting surface is formed on a roller comprised by two iron side plates 1 and 2 keyed at a suitable distance apart on a driving shaft 3 and an annular sheet metal cover 5, which may be double walled, clamped to the side plates by screwed rods 4. The material, for example paraffin wax, forming the casting surface is pressed into place or applied with a dilute solvent to form a layer up to the level a, b. Segments 8, Fig. 5, having, if desired, a series of teeth on their inner sides and made of hard rubber, lignum vitae or other suitable wood, may be screwed to the side plates of the roller and the annular metal cover 5 may be provided over the whole of its outer surface with a number of retaining pins between which there may be stretched wires, perforated or profiled plates or fabric gauze to increase the strength of the casting surface. When the casting surface is being formed on the roller, a number of staves, 13, Fig. 5, are fixed on the side plates of the roller to form a sheathing for the casting space. The annular metal cover 5 is brought to a temperature, which is slightly above the melting point of the material, for example paraffin wax, used for the casting surface by passing steam or hot water through the double walled container and paraffin wax is then poured in through a hole in one of the staves 13 and solidified slowly whilst the roller is being rotated by passing cooling water through the space 7, Fig. 1, or the double walled container. The cooling water is maintained approximately at the same temperature as that of the casting bed when it is subsequently used for the manufacture of films. The wooden sheathing 13 is taken off and any unevenness of the casting surface is removed by turning it off, for example with a knife or smoothing iron, a final smoothing being effected by means of benzene or by a solution of paraffin wax in benzene.
Patent GB-1179955-A (GB)
Title: Electrical Generator.
IPC: G21H1/10
Filed: 1967-04-06
Abstract: 1,179,955. Thermo-electric generators. NUCLEAR MATERIALS & EQUIPMENT CORP. 6 April, 1967 [2 June, 1966], No. 25962/68. Divided out of 1,179,954. Heading H1K. The description is wholly included in the Specification 1,179,954 but is restricted to the structures depicted in Figs. 1, 2 and 5 to 9 of that Specification. The claims relate to the use in such structure of a radiation reflector made of a substance, such as titanium-zirconium alloy, which also serves as a getter to maintain a high vacuum in the casing enclosing the generator.