baber/WOPTO huggingface dataset:
Patent GB-403357-A (GB)
Title: Arrangement in telephone plants or other electrical signalling connections including amplifiers
IPC: H04B3/04
Filed: 1932-03-16
Abstract: 403,357. Repeating systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. March 16, 1932, No. 7888. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 20, 1932]. Drawings to Specification. [Class 40 (iv).] Amplifiers in a transmission line having substantially quadratic characteristics connecting input and output voltages, e.g. suitably biassed triode valves are worked in pairs in such a way that the signals are applied to them in opposite phase. It is demonstrated, assuming identical characteristics and input levels for both amplifiers and negligible phase distortion in the line, that the second harmonic introduced by the first amplifier is removed by the second and it is stated that the higher harmonics are negligible. In practice the amplifiers may have different characteristics and in such a case the output level of that producing the most distortion is made low and that of the other correspondingly high. The distance between the amplifiers of a pair is substantially smaller than the distance between the pairs to minimize the effect of phase distortion. Phasecompensating networks may be used. If there is appreciable phase distortion between the amplifiers the output level of both is made low.
Patent GB-413250-A (GB)
Title: Screw-cutting die-heads
IPC: B23G5/12
Filed: 1934-03-14
Abstract: 413,250. Screwing die - heads. HERBERT, SIR A., LLOYD, A. H., DRANE, H. A., and MALLINSON, H., c/o Herbert, Ltd., Canal Road, Edgwick, Coventry. March 14, 1934, No. 8043. [Class 83 (iii).] A screw - cutting die-head has chasers detachably held in position in a body part by an external sleeve secured round the body by screws in such a manner as to exert a clamping pressure on the chasers axially of the body. The chasers 12 fit into radial slots formed in the body of the die and are clamped in position by the flange 16 of a sleeve 15 which is capable of limited axial adjustment by screws 17. Adjustment of the chasers is effected by cam surfaces 21 on the exterior of the sleeve 15 which is rotated to give the adjustment prior to the final clamping by the screws 17.
Patent GB-580262-A (GB)
Title: Improvements in the manufacture of metal articles from powdered materials
IPC: B22F3/26
Filed: 1944-04-29
Abstract: In a method of manufacture of articles by powder metallurgy including pressing and sintering followed by machining, the surface porosity after machining is restored by subjecting the machined surface to chemical or electro - chemical treatment.  The electro - chemical treatment may be anodising, whilst the chemical treatment may be etching or pickling with an organic or inorganic acid, followed by neutralising and washing.  The article may then be impregnated with an oil either by pressure or by heating and then immersing in a cool impregnating substance.  Examples of articles are piston rings, valve and tappet guides, bearing bushes and cylinder inserts.
Patent GB-1522054-A (GB)
Title: Fuel injection valve for internal combustion engines
IPC: F02B1/04
Filed: 1976-03-01
Abstract: 1522054 I C engine fuel injectors DAIMLER-BENZ AG 1 March 1976 [1 March 1975] 08082/76 Heading F1B Fuel is supplied to the actuating chamber 7 of the needle valve 5 by a piston 10 abutting or formed integral with a piston 9 subject in a chamber 15 to the fuel pressure of an injection pump 12. The chamber 16 on the opposite side of the piston 9 is connected via a throttle 32 to a chamber 30. The chamber 30 may contain an accumulator piston 29, be one of a series of sealed chambers 40 containing fuel, Figs. 2 and 3 (not shown), or the spring chamber 23 connected to the outlet of the injection pump feed pump, Fig. 4 (not shown). Movement of the piston 9 from its rest position biased by the spring 11 uncovers the inlet of a passage 21 to the chamber 7 after a predetermined movement to provide communication between the chamber and the pump 12. The pistons 9 and 10 may have clearance in their bores, longitudinal grooves may be provided in bore or piston surfaces or throttles (52 and 53) (Fig. 4), may be provided between the chambers 11 and 16 and a bore (51) in the pistons (9', 10') to permit return of the pistons by the spring 11 between injections. The throttle 32 provides substantially the same flow resistance as the injection orifices 2. The throttle (49) (Fig. 4), may be in parallel with a non-return valve (50).
Patent GB-780212-A (GB)
Title: Mould for the moulding of concrete piles and means for driving the mould into the ground
IPC: E02D5/66
Filed: 1955-03-21
Abstract: 780,212. Piles. LIDBERG, A. R. March 21, 1955 [April 2, 1954; June 10, 1954], No. 8199/55. Class 68(2) A concrete pile is cast in a cylindrical shell 1 which is afterwards withdrawn, the shell being sunk into the ground by driving a shoe 10 by means of a rammer 18. The heavy parts 11, 12 of the shoe are withdrawn from the light metal casing 8 when the rammer is lifted, and are re-used. The part 11 is stepped to bear on steps on the parts 12 which are arranged segmentally around the part 11. The part 11 has a shank 15 which is secured by a bolt 16 to the rammer 18. Hammering on the head 25 of the rammer 18 drives the shoe 10 downwardly and, when the head 25 becomes level with the anvil 26 carried by the top of the shell 1, the shell is sunk into the ground without much force being applied thereto, the. space 5 between the lower end of the shell and the protuberance on the shoe preventing the force of the hammering from being transmitted by the shell to the shoe. The rammer 18 is steadied as driving proceeds by pivoted brackets 20 which swing out of the way when the rammer-is lifted. The segments 12 are connected by chains or the like 13 to the part 11, the chains being accommodated in recesses 14, so that when the part 11 is lifted with the rammer 18, and the segments 12 are free to move towards the centre of the shoe. the chains pull the segments up out of the shell 1 which is then empty for the casting operation. If the shoe casing 8 is to be reinforced, the segments 12 are allowed to remain, the chains 13 being, in this case, omitted. The shell is made in sections which have lostmotion coupling means between them so that, when the shell is being withdrawn. the upper section only is first moved and its kinetic energy helps to overcome the static friction of the next lower section, and so on down to the lowermost section. The coupling consists of a plate 35 secured to the bottom of a section 31 and projecting downwardly below the edge of the section. The projecting part has an aperture 37 with a horizontal sloping bottom side 39. An abutment 41 secured to the upper part of the adjacent section 33 projects into the aperture 37 with play a, the bottom edge of the abutment 41 being sloped to correspond with the side 39. A protuberance 47 keeps earth out of the play space a during driving. Guides 43 secured to the section 33 align it with the section 31. The underside 9 of the shoe is preferably of concave form.
Patent GB-206088-A (GB)
Title: Improvements in drawing or rolling processes
IPC: C25D3/58
Filed: 1923-03-23
Abstract: 206,088. Lattre, J. G. de, and Hardy, H. March 23, 1923. Drawing; rolling.-A lubricating coating for articles to be drawn or rolled consists of an electrodeposited amalgam of copper or brass.
Patent GB-1260216-A (GB)
Title: Improvements in the ignition of gas burners
Inventor: AYLOTT JOHN
IPC: F23Q3/00
Filed: 1969-02-14
Abstract: 1,260,216. Pulse generators. WIPAC DEVELOPMENT LTD. 29 Oct., 1969 [14 Feb., 1969], No. 8267/69. Heading H3T. [Also in Division F1] A pulse generator supplied from the mains comprises a capacitor 21 charged through a halfwave rectifier 20 and discharged through a thyristor 23 and output transformers 31-36 during the half cycles when rectifier 20 is non- conductive. The generator supplies spark gaps 40 for igniting the burners of a gas-cooker. Transformer 36 is connected to the spark gap controlling the oven burner. A switch 24 operated by the oven door ensures that the burner cannot be ignited with the door closed. In Fig. 2 (not shown) supply transformers 10, 16 are dispensed with, the trigger electrode of the thyristor being connected to a resistor (52) which is in series with a capacitor (50) and a diode (51) across the A.C. supply.
Patent GB-131100-A (GB)
Title: Improvements in and relating to Riveting Machines.
Inventor: JAY RUDOLF
IPC: B21J15/26
Filed: 1918-05-17
Abstract: 131,100. Jay, R. May 17, 1918. Riveting. - An attachment 3 is secured to the lower jaw of a riveting-machine 1 for use in special work, such as riveting a double row of spokes to the hub of a wheel where the riveting-machine could not be used directly. The device is formed with an opening 10 passing over the lower arm of the riveting-machine and is secured by screws 8. The lower jaw of the attachment 3 is shaped according to the nature of the work and carries a lower die 7. The upper die 6 is carried by a snap 9 guided in the upper jaw 4 and connected by an extension bar 5 to the snap 2 of the riveting-machine. A number of differently shaped attachments may be provided.
Patent GB-802778-A (GB)
Title: Method of preparing glycols and monoethers of glycols
IPC: C07C31/20
Filed: 1957-03-13
Abstract: Glycols and monoethers of glycols are made by reacting an olefine oxide, styrene oxide or a halogenated olefine oxide with a hydroxy compound selected from water, primary and secondary acyclic alcohols, alicyclic alcohols, primary aromatic alcohols, secondary aromatic alcohols in which the hydroxyl group is attached to a carbon atom other than the alpha carbon atom, and phenoxy alcohols, the reaction being catalyzed by sulphur dioxide. If a glycol monoether is used as the starting hydroxy compound a polyglycol monoether is obtained.  In the examples: (a) water is reacted with propylene oxide to give propylene glycol; (b) water is reacted with butylene oxide to give monobutylene glycol; (c) water is reacted with isobutylene oxide to give isobutylene glycol; (d) styrene oxide is reacted with water to give monostyrene glycol; (e) epichlorhydrin is reacted with water to give glycerol monochlorohydrin; (f) ethylene oxide is reacted with water to give mono-ethylene glycol; (g) methanol is reacted with propylene oxide to give a mixture of 1-methoxy - 2 - propanol and 2 - methoxy - 1 - propanol; (h) ethylene oxide is reacted with 2-ethoxyethanol to give 2-(2-ethoxyethoxy)-ethanol; (j) methanol is reacted with ethylene oxide to give 2-methoxyethanol; (k) propylene oxide is reacted with sec.-butyl alcohol to give monopropylene glycol sec.-butyl ether; (1) propylene oxide is reacted with cyclohexanol to give propylene glycol cyclohexyl ether; (m) propylene oxide is reacted with ethanol to give two isomeric monoethyl ethers of propylene glycol; and (n) isopropyl alcohol is reacted with propylene oxide to give monoisopropyl ethers of propylene glycol; in each case sulphur dioxide is used as catalyst.  In examples (a) to (f) some di- and poly-glycols are also obtained and in Examples (g) to (n) some higher-boiling glycol ethers are also obtained.
Patent GB-138758-A (GB)
Title: Improved means for raising and forcing water and other liquids
IPC: F04B53/10
Filed: 1919-05-22
Abstract: 138,758. Swainson, R. A. May 22, 1919. Direct air - pressure apparatus, automatic.- Apparatus for raising liquids comprises one or two chambers 10, 10<a> connected to a common suction pipe 12 and provided with suction and delivery valves 13, 13<a>, 14, 14<a>, and with valves 18, 18<a> carried by floats 23, 23<a> adapted, when the liquid rises to a certain level, to cut off the liquid from the chambers 16, 16<a>, which communicate with means for alternately compressing and exhausting the air in the chambers 10, 10<a>. The valves 13, 13<a>, 14, 14a and their seatings are preferably made as a separate unit removable from the main casting. Air holes 29, 29a, controlled by flap valves 30, 30<a>, are provided to admit air to the chambers 16, 16<a> through holes 31, 31<a> in the valve sleeves 20, 20<a> when the valves 18, 18<a> are closed, and holes 32. 32<a> controlled by valves 33, 33a to allow escape of compressed air at the end of the discharge of liquid. The air compressing and exhausting means may consist of an oscillating vane cooperating with two radial abutments in a circular case.
Patent GB-678663-A (GB)
Title: Devices for automatically guiding the pattern-follower on a form-grinding machine
IPC: B24B17/02
Filed: 1951-04-10
Abstract: 678,663. Copy-grinding. AKT.-GES. F. STUDER. April 10, 1951 [April 14, 1950], No. 8330/51. Class 60. A device for automatically guiding the pattern follower 3, Fig. 1, of a copy-grinding machine comprises driving means, which are secured to the machine and engaged or disengaged by hand, for a slide 28 to which two approximately parallel rods 34, 35 are pivotally connected, the opposite ends of the rods being similarly connected to the follower so that the latter may be fixed in any desired angular position. The follower is held against the pattern by spring action and is connected with the grinding wheel by a pantograph 1 and a parallelogram 5. The drive to the slide 28 is taken from a rotating part of the machine through a shaft 12. This shaft is connected by a ball-and-socket joint with a shaft 11 which is rotatably mounted in a block 10 secured to the pattern-holder table T of the machine and connected to a crank 13 and connecting rod 13a which actuates a ratchet wheel 14 through a pawl. The ratchet wheel is secured to a shaft 15, Fig. 2, driving a worm wheel 16 which may be clutched to a shaft 16a by rotation of a screw 17 in threaded engagement with an axial bore in the shaft. This screw has a fixed nut 20 at its lower end which presses the worm wheel into frictional engagement with a tapered portion at the end of the shaft 16a. The latter also carries a sheave 24 round which is lapped a wire cable 25 passing over pulleys mounted at opposite ends of one of two guide rods 30, 31 for the slide 28 and connected to the latter through a spring (not shown). Alternatively, the slide 28 may be driven by a rack and pinion from the shaft 16a. When the shaft 16a is disconnected from the worm wheel 16, the slide 28 may be manually displaced by rotation of a knurled collar 16b secured to the shaft. The shaft 15 may be driven continuously instead of being driven by ratchet gear. In a further modification, the slide 28 is connected to a rack which is intermittently displaced by a pawl mounted on the end of a lever, the latter being oscillated about its fulcrum by a moving part of the grinding machine. The drive may be stopped by manual disengagement of the pawl.
Patent GB-181141-A (GB)
Title: Improvements in or relating to self-acting spinning mules
IPC: D01H3/00
Filed: 1921-03-17
Abstract: 181,141. Houget, F. March 17, 1921. Mules and twiners.-In a mule of the type having a fixed spindle carriage and a movable delivery mechanism, the delivery rollers are driven directly from the driving-shaft during the outward run. The main shaft 1 drives through a train of gearing a shaft 10 extending the length of the headstock. Keyed to this shaft, or secured to it, so as to slide along it is a bevelpinion 15 mounted in a bracket on the travelling frame 13 which carries the deliverv mechanism. The pinion 15 drives the roller shaft 27 through a train of gearing and a clutch. The clutch is operated by means of a fork 31 carried by a rockshaft 32, to which is attached an arm 35, and shoe 35<a>. The carriage 13 has pivotally mounted on it a lever with a part 36 to engage the shoe 35<a>, and a pendent, bowl 40. During the first part of the outward run the clutch is in engagement and the rollers are driven. At the necessary point the bowl 40 engages an adjustable stop 41, movable along a bar 42, the part 36 then engages a sloping part of the shoe 35<a> and the clutch is opened. Further movement brings the part 36 against a flat part on the shoe and the clutch is held open during the remainder of the outward run, and during the inward run. At the end of the inward run the bowl 40 engages a stop 43 and the clutch is re-engaged.
Patent GB-1092519-A (GB)
Title: Improvements in or relating to magnetohydrodynamic power generating systems
Inventor: FRECK DAVID VERNON
IPC: H02K44/08
Filed: 1964-02-28
Abstract: 1,092,519. MHD power plant. CENTRAL ELECTRICITY GENERATING BOARD. Feb. 11, 1965 [Feb. 28, 1964], No. 8507/64. Heading H2A. [Also in Division F1] Increased ionization is stated to be obtained at temperatures below 3000‹ K in the working fluid of a MHD generator by maintaining the combustion in a fuel rich condition. The air, oxygen or oxygen enriched air used for supporting combustion is preferably preheated to between 600-1200‹ C. and is at a pressure greater than 2 atmospheres. The hydrocarbon fuel used is in a quantity that will give up to 10%, preferably 2%, fuel rich conditions in the combustion chamber. After the working fluid has passed through the generator duct additional air is injected to complete the combustion of the exhaust gases and this hotter gas is used both to raise steam for a conventional steam turbo-alternator plant, by passing it through a boiler and superheater, and to preheat the oxidant supply to the combustion chamber. A potassium salt is injected into the combustion chamber to further increase the conductivity and seed extraction devices are used to extract the seed from the exhaust gases and re-circulate it.
Patent GB-115720-A (GB)
Title: Improvements in Incandescent Gas Mantles and in the Method of Making the same.
Inventor: BATES GEORGE LYNES
IPC: F21H3/00
Filed: 1917-06-14
Abstract: 115,720. Bates, G. L. June 14, 1917. Mantles are formed of tubular lace fabric 2 which is reduced at intervals to form the ends of upright mantles, or closed as at 9, Fig. 4, to form the ends of inverted mantles. An extra strong thread 8, introduced at the edges, is carried across, Fig. 2, or around and across, Fig. 3, the reduced portion of the upright mantle fabric to form the supporting-loop. Inverted mantles are provided with tying-threads 12, 13, Fig. 4, for securing them to the supporting-ring. The mantles may be strengthened as at 7. 11. Specification 4425/11, [Class 74 (i), Braid &c.], is referred to.
Patent GB-1161968-A (GB)
Title: Catalytic Treating of Petroleum Distillate Fractions to Reduce Mercaptan Contest
Inventor: ENG JACKSON
Filed: 1968-02-09
Abstract: 1,161,968. Catalytic desulphurization. ESSO RESEARCH & ENG. CO. 9 Feb., 1968 [14 March, 1967], No. 6549/68. Heading C5E. A process for reducing the mercaptan content of a petroleum distillate boiling in the range 75-800‹ F. comprises contacting the distillate in liquid phase at 400-800‹ F. and a pressure of 50-1000 p.s.i.g. with a catalyst and a sweep gas (N 2 , CO 2 , CH 4 , ethane propane, ethylene, propylene, and mixtures containing them). Suitable catalysts include the oxides and sulphides of Ni, W, Mo, Co and Fe, and combinations thereof such as cobalt molybdate and a nickel-tungsten compound, supported on Al 2 O 3 , SiO 2 -Al 2 O 3 , MgO and ZrO 2 .
Patent GB-289240-A (GB)
Title: Improvements in and relating to the manufacture of biscuits or the like
IPC: A21C11/16
Filed: 1927-03-29
Abstract: 289,240. Vicars, Ltd., T. & T., and Crosland, E. M. March 29, 1927. Extrusion machines.-Relates to machines for moulding sheets or strips of dough &c. wherein the material is forced into a compression chamber leading to an extrusion slot or nozzle, and consists in forming the side or sides of the compression chamber of individually-adjustable sections to regularize the feed ; transverse partitions are also provided to prevent lateral spread. As shown, dough is fed from a hopper 1 by rollers 3, 4, into a compression chamber 5 leading to a nozzle 14. The chamber 5 is provided with a fixed wall 6 engaging the roller 3 and with a series of sections 7, 8 movable towards or from the roller 4 by eccentric pins on spindles 10 furnished with handles 12 and normally retained by a catch 13. Transverse partitions 15 are carried by the sections.
Patent GB-404830-A (GB)
Title: A box magazine for automatic loading weapons
IPC: F41A9/67
Filed: 1933-03-22
Abstract: 404,830. Smallarm magazines. WAFFENFABRIK SOLOTHURN AKT.-GES., Solothurn, Switzerland. March 22, 1933, No. 8645. Convention date, July 12, 1932. [Class 119.] A box magazine, either upright or horizontal, for automatic firearms is provided with a latch which normally holds the movable side or lid of the magazine in its closed position and automatically releases the lid and holds the cartridge feeder when the latter is retracted to its tensioned position. In the form shown, the magazine is removably connected to the side of a smallarm by means of a lip 7 and a flatted rotatable bolt 9 which engages with a catch 8. The magazine consists of a frame 2, a steel mouthpiece 1, and a spring-controlled hinged lid 11. The lid is normally held in the closed position by a latch 35 pivoting on a pin 34 which is mounted in the outer end of the magazine. The latch, which is controlled by a spring 36, has two arms one of which has a lip 43 adapted to engage with an inclined surface 44 of a slot 45 in the lid. The other arm is formed with a lip 41 and an inclined surface 42, both of which functionally operate with the retractable cartridge feeder 16. In the retracting operation, an inclined surface 38 on the feeder depresses the latch slightly by engaging with the lip 41 but not by a sufficient amount to release the lid. By the subsequent engagement of the surfaces 38 and 42, the resultant movement of the latch is sufficient to release the lid which flies open under the action of its spring 15. Upon closing the lid, the latch is moved by the surface 44 thereof to release the feeder from the lip 41. The feeder is guided by its sides 17, 18, and by two lateral surfaces 19 of a bearing member 20 welded thereto. This member projects through a slot 21 in the lower wall of the magazine and carries a grooved roller 25 with which engages a manually operated tensioning lever 26 which effects the retracting movement of the feeder. This lever is pivoted about a pin in a lug 29 and is controlled by a spring 29a. A further slot 61, provided in the lower wall of the magazine, provides an escape for'the cartridge clip when the last cartridge has been discharged. At this stage, the breech-block is held in its retracted position by a pivoted lever 69 actuated by a lever 67, which in turn is actuated by the bearing member 20 when in its extreme advanced position. Specifications 372,653 and 377,840 are referred to.