baber/WOPTO huggingface dataset:
Patent GB-1474161-A (GB)
Title: Torque responsive speed shifting mechanism for power tool
IPC: B25B23/157
Filed: 1975-05-05
Abstract: 1474161 Power wrench GARDNER-DENVER CO 5 May 1975 [1 Nov 1974] 18800/75 Heading B3N [Also in Division F2] In a power driven tool for tightening threaded fasteners, e.g. a nut runner, a shift from high ratio (direct drive) to low ratio is effected by disengagement of a clutch comprising interengaging members of which one, in response to transmission of a predetermined torque, moves from a first engaged position to a second engaged position in which further increase of torque will not cause movement of said one member, and a piston connected to one clutch member is subject on one side to a biasing pressure acting in the clutch engaging direction and on the other side to a further pressure. The rotor 20 of a pneumatic motor 18 is connected directly or, as shown, through a fixed-ratio epicyclic train 26, 28 with a shaft 32 having a sun 34 connected to a driven spindle 42 through planetary pinions 36 in mesh with a reaction ring 38. A clutch member 54 keyed to the shaft 32 by balls 69 is urged by a spring 96 into engagement with the other clutch member 53, formed integrally with the planetary carrier 40 which is connected to the driven spindle 42, to establish direct drive, the reaction ring being allowed to rotate by a one-way clutch 44 of wedging roller type. When the motor is energised, pneumatic pressure is transmitted through a conduit 100, Fig. 9, and restriction 104 to a port 76 communicating with a chamber 72 to provide the clutch-engaging biasing pressure on a piston 70, which is supported on the clutch member 54 by bearings 71. Pressure downstream of the restriction 104 also acts through a double check valve 108 on a pilot operated valve 110 to admit pressure through a check valve 112 to a port 78 and chamber 74, but this pressure is relieved, when the clutch is fully engaged, by the positioning of an 0-ring 88 beyond the end of a bore 94. When the clutch is fully engaged it transmits torque by engagement of teeth 64 of the member 53 with sloping surfaces 62 of the member 54 so that when the torque exceeds a value determined by the pressure in the chamber 72 the member 54 is displaced to the position shown in Fig. 3, in which an 0-ring is displaced from a seat 84, Fig. 1, to vent the chamber 72, and the 0-ring 88 is positioned in the bore 94 so that pressure is built up in the chamber 74 and the piston is moved to disengage the clutch 53, 54 completely to establish reduced drive through the planetary gearing 34, 36, 38. The check 112 and a restricted bleed 114 delay re-engagement of the clutch by the spring 96 when the pressure fluid supply to the motor is cut off. This permits easy withdrawal of the tool from the driven fastener by allowing the torque to be relaxed, which is not possible when the clutch is engaged due to the one-way clutch 44. In an arrangement comprising a plurality of similar nut running tools a fluid pressure control system provides for simultaneous switching of all of the tools from high to low ratio.
Patent GB-746385-A (GB)
Title: Improvements in or relating to catalytic hydrogenation
Inventor: LEFEUVRE CHARLES WILLIAM
IPC: C01B15/023
Filed: 1953-07-07
Abstract: Alkylated or arylated anthraquinhydrones or alkylated or arylated anthraquinols are produced from alkylated or arylated anthraquinones by hydrogenation in solvent medium in the presence of a catalyst comprising palladium deposited on a siliceous carrier which has been pretreated with an aqueous alkaline solution, e.g. of sodium hydroxide, carbonate or bicarbonate. Quinones specified are 2-ethyl anthraquinone and 2-tertiary butyl anthraquinone.  The siliceous carrier may be silica gel, sodium aluminium silicate, or a silica-alumina catalyst.  According to the examples, silica gel is pretreated with a boiling solution of sodium carbonate, hydroxide, or carbonate (examples 1, 2, and 5) and artificial sodium aluminium silicate is moistened with sodium bicarbonate solution and then dried (example 4).  The treated carrier is palladized in the usual manner. The catalyst may be employed in suspension, a particle size corresponding to a screen aperture between 0.001 and 0.1 being suitable for this purpose, or as a fixed bed, the solution being passed either in co- or counter-current flow.  The solvent may be a two-component mixture, the first component being e.g. cyclohexanyl acetate or propionate, or methyl cyclohexanyl acetate or propionate, and the second component being e.g. benzene, toluene or xylene. Specifications 465,070, 508,081, 580,897, 686,574, [all in Group III], 718,305 and 718,306 are referred to.ALSO:In the production of hydrogen peroxide by the successive hydrogenation and oxidation of alkylated or arylated anthraquinones in solvent medium, the hydrogenation is carried out in the presence of a catalyst comprising palladium deposited on a siliceous carrier which has been pre-treated with an aqueous alkaline solution e.g. of sodium hydroxide, carbonate, or bicarbonate.  The siliceous carrier may be silica gel, sodium aluminium silicate or a silicaalumina catalyst.  According to the examples, silica gel is pretreated with a boiling solution of sodium carbonate, hydroxide or bicarbonate, washed, and dried (Exs. 1, 2 and 5), and artificial sodium aluminium silicate is moistened with sodium bicarbonate solution and then dried (Ex. 4).  The treated carrier is palladised in the usual way.  The catalyst may be employed in suspension, a particle size corresponding to a screen aperture between 0.001 and 0.1 being suitable for this purpose, or as a fixed bed, the solution being passed either in co- or counter-current flow. Quinones specified are 2-ethyl anthraquinone and 2-tertiary butyl anthraquinone.  The solvent may be a two-component mixture, the first component being e.g. cyclohexanyl acetate or propionate, or methyl cyclohexanyl acetate or propionate, and the second compound being e.g. benzene, toluene, or xylene.  Specifications 465,070, 508,081, 624,353, 686,574, 718,305 and 718,306 are referred to.
Patent GB-284359-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L1/42
Filed: 1926-07-28
Abstract: 284,359. Armstrong Siddeley Motors, Ltd., and Briggs, J. C. July 28, 1926. Cylinders, pipes and heads of, and mounting. - In an engine, especially applicable to aircraft, and comprising stationary radial cylinders having T heads with exhaust valves 14 and inlet valves 15 arranged in front and rear respectively, the inlet pipes 26 are supplied from a centrally arranged induction chamber 25, preferably containing a fan or blower. The cylinders may be arranged in line and in this case the valves are operated directly from the valve gears 12, 13. The cylinder heads are flat and may be of stream-lined form. The cylinder barrels are mounted as shown in Fig. 2 by being screwed on to flanged sleeves 6 each of which has a part H adapted to be engaged by a spanner, split collar 9 being provided to grip between flanges 10, 11 on the barrel and the crank case.
Patent GB-741628-A (GB)
Title: Irreversible self-locking device
IPC: F16D41/08
Filed: 1953-07-07
Abstract: 741,628. Locking devices; freewheel clutches. WASSILIEFF, V. July 7, 1953 [July 8, 1952; Dec. 18, 1952], No. 18840/53. Classes 80(2) and 80(3) A frictional locking device between inner and outer elements which may be applied to elements having relative linear or rotary movement and which may be used in freewheel mechanism comprises at least one pair of co-acting wedging members spaced by at least two rolling members. According. to the construction shown in Fig. 1, which may be employed to prevent inadvertent release of vehicle brakes, a linearlymovable rod 2, operated by a control rod 87, is locked to a tube 1 against movement to the left by a pair of spring-pressed wedges 5, 5a engaging a pair of rollers 3, 4 carried by the rod 2, unwedging being effected, when required, by the end 10a of the rod 87. This rod is coupled to the rod 2 by a pin 88 engaging L-shaped slots in the rod 87, and a torsion and compression spring 91 normally biasses the pin 88 to the transverse portions of the slots so that the end 10a is clear of the wedges 5, 5a, and the rod 87, together with the rod 2, may be shifted only to the right. To release the lock the rod 87 is partially rotated to bring the pin 88 into the longitudinal portions of the slots to allow a relative axial movement between the rods so that the end 10a releases the wedges and the rod 2 may be pushed to the left. The spring 91 may engage a sleeve axially adjustable in the rod 87 to vary the compression of the spring. In a modification of this construction, Fig. 6 (not shown), two oppositely-acting pairs of wedges, interconnected by springs, cooperate with respective pairs of rollers carried by the rod 2 and are loosely housed in cut-outs in a control tube which is located between the rod 2 and tube 1 and has a lost-motion connection with the rod 2 so that the wedges engage the tube 1 and the rod is locked against movement in either direction relative to the tube 1 unless pulled or pushed by the control tube, when the initial movement of the latter causes the edges of the cut-outs to engage the wedges and release the lock. The control tube is spring-biased so that the wedges are normally centrally located in the cut-outs. In a further embodiment two coaxial rotary elements 1, 2, Fig 5, are locked for rotation together in one direction by three rollers which are held in a groove in the inner element 2 and which co- 'operate with two spring-loaded wedges 5, 5<SP>1</SP> engaging the inner cylindrical surface of the outer element 1. Release is effected by two fingers 10, 10<SP>1</SP>.
Patent GB-344314-A (GB)
Title: An improved machine for working glass
IPC: C03B9/40
Filed: 1930-06-20
Abstract: 344,314. Glass manufacture. SOC. ANON. D'ETUDES ET DE CONSTRUCTIONS D'APPAREILS MECANIQUES POUR LA VERRERIE, 3, Rue de Castellane, Paris. June 20, 1930, No. 18852. Convention date, May 5. [Class 56.] Delivering molten metal.-In an automatic machine for working glass in which the glass is received by gravity in moulds or other receptacles, the drum P carrying the moulds M is supported by and rotates upon a plate S having itself an oscillating motion about the same axis, both the motions being produced by a fixed motor B which communicates a continuous rotation to the drum P and also operates a crank disc N which through a link Q causes the oscillating movement of the plate S. The composition of the movements may be such that the mould M arriving beneath the feeder is kept at rest there during the reception of the charge of glass. In the construction described, the shaft D of the motor B has two screws, one E driving a worm wheel G keyed on a shaft H connected to and driving the pinion K which engages a toothed ring L on drum P to rotate the moulds M, through a shaft I having cardan joints J, J<1>. To allow for variation in length, the shaft I is in two portions one terminating in a tubular part in which the other slides, a key c being provided to transmit the rotary movement and a spring r engaging between an abutment b<1> on one portion and the tubular part tends to move the two portions apart. The oscillating motion is imparted to plate S bv means of a worm wheel N driven by the second screw F on shaft D and carrying directly or by means of a plate an eccentric pin O, the position of which can be adjusted from the centre outwards. A link Q is pivoted to pin O and to a projection R on the plate S and may be adjusted in length by a sleeve Z rotating on two opposite screw threads. The oscillating motion of the plate S may. be eliminated by moving the pin O to the centre of the wheel N. The base A of the apparatus may be mounted on wheels.
Patent GB-992413-A (GB)
Title: Improvements relating to rotary regenerative air preheaters for boiler plant
IPC: F23M20/00
Filed: 1961-05-25
Abstract: 992,413. Thermal regenerators. JAMES HOWDEN & CO. Ltd. (Air Preheater Corporation). May 16, 1962 [May 25, 1961], No. 18861/61. Drawings to Specification. Heading F4K. A heating-surface element, e.g. for a rotary regenerative air preheater, comprises an undulated metal plate encased in a coating of vitreous-type enamel. The core plate may be of mild steel or a corrosion-resistant low-alloy steel.
Patent GB-227877-A (GB)
Title: A new or improved apparatus for use in making extractions of tea, coffee, cocoa, and like substances
IPC: A47J31/38
Filed: 1923-07-24
Abstract: 227,877. Gallardo, J. J. July 24, 1923. Extracts, making.-In apparatus for making tea, coffee, cocoa, and other extracts of the type in which the last portions of the extract are expressed from the substance by a piston B the extracting liquid is introduced through a hollow belt or jacket J with a perforated inner wall L, and the piston B is arranged to press, when raised, against a packing-ring G round the lower edge of the cover X of the device so as to make a fluid-tight joint. The cover X may be held in place by means of arms Y pivoted to a frame V through which passes a screw S which operates the piston B. The receptacle C in which the extraction takes place rests on a perforated plate Q and is provided with a removable bottom F serving as a strainer. The extract flows through a conical receiver R to a delivery pipe D.
Patent GB-688256-A (GB)
Title: Lighting device for sewing machines
IPC: D05B79/00
Filed: 1951-08-13
Abstract: 688,256. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 13, 1951, No. 18988/51. Class 112. [Also in Group XI] Illuminating apparatus.-Areflector and lens for a sewing machine lighting device are removable from the frame as a unit for access to the lamp. In the arrangement shown an electric lamp 29, with a socket and switch 27, is supported in a recess in the side of the machine arm 11 by a strap 30 surrounding the socket and fixed to the arm by a screw. A reflector 34 covering the outer side of the lamp is fixed to the arm 11 by screws 35, and a lens 40 has a flange 41 fitting in grooves in the reflector and the arm 11 and is secured to the reflector by a clip fixed by a screw. Thread spools, winding.-A bobbin spindle 21 with a friction wheel 22 for engagement with the hub 23 of the flywheel is carried by an arm 19 pivoted to the frame at 20 and formed with a handle extension 24.
Patent GB-1197253-A (GB)
Title: Improvements in or relating to apparatus for providing a Local Vertical Reference
IPC: G01C21/18
Filed: 1968-04-23
Abstract: 1,197,253. Gyroscopic apparatus. HONEYWELL Inc. April 23, 1968 [April 28, 1967], No.19045/68. Heading G1C. Apparatus for providing a local vertical reference in a craft comprises a platform 12 mounted in gimbals 14, 16 on the craft servomotors 28, 31, 38 for adjusting the attitude of the platform in its gimbals, two free gyroscopes 20, 21 on the platform to sense attitude changes of the platform 12 relative to space and connected in a central loop to the servomotors 28, 31, 38 for stabilizing the platform relative to inertial space, and a computer (not shown) coupled to the control loop and receiving inputs from orthogonally orientated accelerometers 23, 24, 25 movable with the platform and used to provide platform position information, the computer feeding signals into the control loop to ensure that the platform is stabilized relative to the local vertical by compensating for changes of the direction of the local vertical due to movement of the craft relative to earth and due to the rotation of the earth. The two gyros 20, 21 preferably have spherical rotors supported on electrostatic or gas bearings and their spin axes are orthogonally orientated in the local horizontal plane in the sense that one senses changes in pitch and azimuth attitude of the craft and the other senses changes in roll and azimuth attitude of the craft. For the purpose of merely providing a local vertical reference changes in azimuth orientation need not be monitored if desired. The gyroscope outputs in the described embodiment are fed to the computer which controls the servomotors to stabilize the platform about azimuth pitch and roll axes. The accelerometer outputs are also fed to the computer which then stabilizes the platform to provide a local vertical reference converted from the effects of craft movement and earth rotation: Rate gyros (not shown) are also provided on the platform to detect rates of angular movement of the platform to introduce rate terms into the platform adjusting servo-loop. The computer may also feed output signals to a craft control system such as an autopilot.
Patent GB-405882-A (GB)
Title: Improvements in or relating to tea leaf rolling machines of the closed type
IPC: A23F3/12
Filed: 1933-07-05
Abstract: 405,882. Tea-rolling machines. MOTSHAGEN, C., 7, Bussummergrindweg, Hilversum, Holland. July 5, 1933, No. 19078. Convention date, July 5, 1932. [Class 129.] In a tea-rolling machine of the closed type, having a presser located in the tea-leaf container, the presser is driven vertically up and down by mechanism actuated by relative movement of the container and another part of the machine, and the reversal of motion at each end of the presser stroke is also effected automatically by the mechanism. The mechanism is preferably driven by a pivoted striking-arm on the container periodically engaging a projection on the rotating table or fixed frame of the machine. The pressure on the tea-leaves is solely due to the weight of the presser and any attached weights ; the travel of the presser is variable, and the mechanism may be thrown out of use altogether if required. In the form shown, the tea-leaf container 1 and the table 2 rotate about parallel axes, and the presser 3 is actuated through a rod 6 which slides in a supporting frame 5 on the container. At each revolution of the machine, a cam member 30 on the table 2 strikes a roller on one arm of a spring-loaded lever 28 pivoted on the container 1 ; another arm 26 of this lever is connected by a rod 25 to an arm 19 which is free on a short shaft 18 mounted on the frame 5. Also free on this shaft is a hand-lever 20, which has an abutment 33 to engage the arm 19 and a pawl 23 to engage a ratchet wheel fixed on the shaft ; upward motion of the rod 25 is thus transmitted to the shaft 18 through the arm 19, abutment 33 of lever 20 and pawl 23, reversed motion of the shaft being prevented by a second ratchet and a pawl mounted on the frame 5. The motion of the shaft can be prevented, when desired, by moving the lever 20 over in the direction of the arrow, so that it is not engaged by the arm 19 ; the lever 20 may be used for hand operation of the presser when required. The shaft 18 carries a sprocket wheel which drives, through a chain 16 and wheel 15, an endless chain 11, passing over sprocket wheels mounted on the frame 5. The chain 11 has a hook 10 which carries a ring 9 sliding on the rod 4, and this ring engages a ring 8, adjustably fixed on the rod 4, to lift the presser ; the weight of the presser is partly balanced by a counterweight 35 attached by a chain 36 to the ring 9. The presser is carried up by the chain until the hook 10 passes over the upper sprocket wheel carrying the chain, and is then lowered until it rests on the tea leaves in the container, the ring 9 continuing its motion to the lower sprocket wheel and then coming up under the ring 8 again. The speed of operation of the presser may be varied by altering the position of attachment of the rod 25 to the arm 26 of the driving lever. Specification 312,473, [Class 129, Tea &c.], is referred to.
Patent GB-1359089-A (GB)
Title: Process for curing polyepoxides
IPC: C08G59/68
Filed: 1972-04-25
Abstract: 1359089 Curing epoxy resins SCHERING AG 25 April 1972 [27 April 1971] 19093/72 Heading C3B Epoxy resins are cured by polycarboxylic acid anhydrides using as a catalyst pyrrolidine (I) or an adduct of I with a mono- and/or polyepoxide or an adduct of I with a carboxylic acid anhydride. The epoxy resin may be a glycidyl ether of bisphenol A. The anhydride may be employed at 0À7 to 1À2 equivalent of anhydride per equivalent of epoxide groups. The amount of I or adduct thereof may comprise 0À01-30% by wt. of the mixture. Uses.-Mouldings, encapsulation of electrical components, powder coatings.
Patent GB-272711-A (GB)
Title: An improved label and process of producing writing thereon
IPC: G09F3/02
Filed: 1926-08-03
Abstract: 272,711. Perry, E. S. Aug. 3, 1926. Labels.-A label is formed of a ductile and soft metal such as zinc, the surface of the sheet metal being roughened by sand blasting, acid, scratch brushing &c., so that the ink or lead of a pencil will be deposited on the label in the act of writing, the writing also being depressed into the label.
Patent GB-725241-A (GB)
Title: Improvements in or relating to vapour burner ranges or rings, particularly for petroleum liquid fuel
IPC: F23D11/44
Filed: 1953-07-10
Abstract: 725,241. Vapour burners. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABR1EKEN. July 10, 1953 [July 14, 1952], No. 19209/53. Class 75 (1). A vapour burner in which petroleum is fed from a container 1 to a vaporizer 4 which communicates with a plurality of jets 7 arranged opposite air-vapour mixing ducts 14, 11 and 9 leading to burners 15, 12 and 10 the burner 10 of which heats the vaporizer 4 has a cap 17 mounted above the auxiliary burner 10 to collect the hot gases rising therefrom and to direct such gases through ducts 18 to the outside of the air-vapour mixing ducts 14 of one or more burners 15. The cap 17 may be arranged directly above the vaporizer 4 or above a vapour distributing duct 6, Fig. 3. The ducts 18 may be below, Fig. 3, or above, Fig. 4 (not shown) the air-vapour mixing ducts 14.
Patent GB-875348-A (GB)
Title: Improvements in or relating to trifluormethyl substituted phenoxazines
IPC: C07D265/38
Filed: 1960-05-31
Abstract: The invention comprises compounds of the formula <FORM:0875348/IV (b)/1> wherein R is hydrogen or methyl and Z is a substituted or unsubstituted heterocyclic amino group having up to 12 carbon atoms, and acid addition salts thereof, and the preparation thereof by building up the side chain by various condensations, for example, by alkylating a trifluoromethyl-phenoxazine with a reactive heterocyclic amino-alkyl ester and, when the formed 10-(heterocyclicaminoalkyl)-trifluoromethyl-phenoxazine derivative has a piperazinyl residue containing an N-protective group, removing said group and, if desired, further N-alkylating the product and, if desired, converting any product into its acid addition salts.  The products are sedatives, tranquilizers and anti-emetics.  10 - [31 - (N-Carbethoxypiperazinyl)-propyl]-2-trifluoromethyl-phenoxazine is prepared by condensing 2-trifluoromethyl-phenoxazine with N-carbethoxy-N1-(3-chloropropyl)-piperazine.  10 - [31-(N-b -chloroethylpiperazinyl) -propyl]-2-trifluoromethyl-phenoxazine dihydrochloride is prepared by treating the corresponding hydroxy-compound with thionyl chloride.  Phenylcarbonate of 10-[31-(N-hydroxyethylpiperazinyl) -propyl]-2-trifluoromethyl-phenoxazine is prepared by the action of phenylchlorocarbonate.  1 - (p-Nitrophenethyl)-4-[3-(2-trifluoromethyl-10-phenoxazinyl) -propyl]-piperazine is prepared by reacting 10 - (31-piperazinyl-propyl)-2-trifluoromethyl-phenoxazine with p-nitrophenethyl bromide.  3-Trifluoromethyl-phenoxazine is prepared by reacting N-benzyl-o-amino-phenol and 4-chloro-3-nitrobenzo-trifluoride and debenzylating the product.ALSO:Pharmaceutical compositions containing compounds of the formula <FORM:0875348/VI/1> (wherein R is hydrogen or methyl and Z is a substituted or unsubstituted heterocyclic amino radical having up to 12 carbon atoms) or acid addition salts thereof, with a carrier, may be in the form of capsules, tablets, suspensions and solutions for oral or parenteral use.  Acid addition salts may be those with maleic, succinic, methanesulphonic, ethanedisulphonic, tartaric, salicylic, citric and theophylline acetic acids and 8-halotheophyllines and hydrochloric, sulphuric and phosphoric acids.