baber/WOPTO huggingface dataset:
Patent GB-806733-A (GB)
Title: Improvements in controls for aircraft gas turbine engines
IPC: F02C7/22
Filed: 1955-04-29
Abstract: 806,733. Gas turbine plant. HOBSON Ltd., H. M., GREENLAND, L. S., and McCOURTY, W. D. Feb. 15, 1956 [April 29, 1955], No. 12527/55. Class 110 (3). [Also in Group XXIX] A throttle control system for an aircraft gas turbine engine comprises an hydraulic servomotor under the control of a pilot's throttle lever for selecting the rate of flow of fuel to the engine and a valve movable in unison with the output member of the servomotor and controlling an orifice through which liquid flows when the output member is actuated by movement of the throttle lever to accelerate the engine, said valve being arranged to restrict the orifice and thereby retard the movement of the output member when the pilot's lever is in a low-speed setting but permitting increased flow when a higher engine speed has been attained. In an embodiment, a pilot's lever 10 is connected to a floating lever 33 which has a connection at its lower end with a servo-piston 37 and is arranged at an intermediate point to actuate a spring-loaded control valve 38 for the servopiston. Liquid fuel under pressure is supplied through a conduit 46 to the right-hand side 49 of the servo-piston and through a conduit 40 and orifice 41 to a larger area on the left-hand side of the servo-piston, the valve 38 controlling the escape of liquid to a low-pressure line 44. The piston 37 is loaded by a spring 28 which is acted upon by an engine speed governor 29, and a valve member 27 controlling a servo-operated fuel valve 16 is attached to an arm 30 interposed between the spring 28 and the governor 29. At low-speed positions of the pilot's lever 10 the piston 37 is situated towards the left-hand end of the housing whereby the orifice 41 is relatively restricted by a tapered needle 45 carried by the piston 37. To increase the speed of the engine the lever 10 is moved in such a directon as to allow the valve 38 to approach its seat whereby pressure is built-up in the chamber to the lefthand side of the piston 37 at a rate determined by the restriction presented by the orifice 41. Thus, due to the tapering of the needle 45, the piston 37 moves at an increasing rate as it approaches the higher speed settings. To decelerate the engine the lever 10 opens the valve 38 so that the pressure in the chamber to the left-hand side of the piston 37 falls rapidly irrespective of the position of the piston. The fuel valve 16 is actuated by a piston 20 loaded by a spring 22 and having a restricted bore 21 whereby the valve is positioned according to the position of the valve member 27. The valve 16 is situated in a spill line 15 from burners 13. A second spill valve 17 is actuated by a spring- loaded servo-piston 47 under the control of a capsule 48 subject to ram pressure as in Specification 806,734. Also, as described in that Specification, fuel is supplied during starting of the engine by an engine-driven gear pump 18 but is subsequently supplied by a centrifugal pump 11.
Patent GB-562857-A (GB)
Title: Improvements in or relating to instruments for measuring temperature and pressure
IPC: G01K5/36
Filed: 1942-09-04
Abstract: 562,857. Testing filters. GRANT, C. R. A. Sept. 4. 1942, Nos. 12538/42 and 9974/43. [Class 46] [Also in Group XIX] In an indicating instrument, a Bourdon tube is subjected to the pressure of a medium, whilst a second Bourdon tube is subjected to the temperature of a medium, or to the pressure of the same medium at a point different from that of the first tube, or to the temperature or. pressure of another medium, both tubes on expansion acting in the same direction on a pointer moving over a dial, and. is characterised in that both tubes extend in the same direction, and are connected together at or near their free ends, only one of the tubes being connected to the pointer, so that as a result of the resiliency of the two tubes, their action on the pointer is additive. As applied to an instrument for indicating the condition of an oil filter, two tubes 2, 3, connected to a support 4 are subjected, respectively, to changes of temperature and pressure on the input side of the filter. The tubes are connected by a plate 12 and actuate a quadrant 7 through an adjustable link 6 to move a pointer 1. A high reading indicates a clogged filter. The device may be connected to both sides of a valve to indicate the flow of water through the valve. Specification 507,666, [Group XIX], is referred. to in the first Provisional Specification.
Patent GB-573003-A (GB)
Title: High voltage transformers, particularly instrument transformers
IPC: H01F38/26
Filed: 1943-08-03
Abstract: 573,003. Transformers. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 3, 1943, No. 12538. Convention date, Aug. 4, 1942. [Class 38 (ii)] In a high voltage instrument transformer adapted to be connected between a high voltage line and earth and having a U-shaped iron core a closed by a yoke b and with its two limbs each wound with a low and high voltage winding separated by an insulating sleeve d, the iron core and also the lower ends of the high voltage winding e being at earth potential, while the upper ends are connected to the high voltage terminal f, the insulating sleeve d is provided both outside and inside with conductive layers connected respectively to hightension winding and to earth ends, thereby controlling potential distribution and avoiding edge effects. The conductive layers may be of metal and may be painted or wound on the sleeve. They may also take the form of wire netting. The thickness of the insulating sleeve d may increase as the potential to which it is subjected increases.
Patent GB-565919-A (GB)
Title: Improvements in the separation of liquids of different boiling points from mixtures thereof by fractional distillation
IPC: B01D3/14
Filed: 1940-08-06
Abstract: 565,919. Fractional distillation of hydrocarbons &c. WOODALL-DUCKHAM (1920), Ltd., and CHADDER, W. J. Aug. 6, 1940, No. 12631. [Class 32] In the separation of liquids of different boiling points from mixtures containing them by fractional distillation in a batch still having a fractionating column associated with a total condenser for the distillate and a reflux liquid return circuit, the removal of an intermediate fraction, e.g. a fraction made up of constituents . of one liquid and the liquid of next higher boiling point, which fraction is distilled off at intermediate temperatures between the boiling points of the first and second liquid and the amount of which fraction can be predetermined by preliminary experiment, is effected by ceasing to withdraw distillate when the temperature of the still head commences to rise and returning all reflux to the column until a condition of equilibrium is established, as indicated by a steady vapour temperature at the head of the column, removing the intermediate fraction separately, in stages if desired, with re-establishment of equilibrium conditions again until the still head temperature becomes constant, whereupon the distillation of the second fraction is effected. The process is described with reference to the distillation of mixtures of benzole, toluole and xylole to obtain pure nitration toluole &c., and examples are given of operating conditions.
Patent GB-700847-A (GB)
Title: Plastic compositions comprising biphenylyl esters of aliphatic acids
Inventor: HAVENS CARL BRADFORD
IPC: C08K5/105
Filed: 1952-05-19
Abstract: Vinyl chloride polymers are stabilized and also plasticized, if desired, by incorporating from 5 per cent. by weight up to and including plasticizing quantities of a biphenyl ester of at least one unsubstituted straight-chain aliphatic monocarboxylic acid containing from 10 to 18 carbon atoms which is either saturated or contains from 1 to 4 ethylenic double bonds.  The vinyl chloride polymers may be polyvinyl chloride and copolymers of vinyl chloride with vinylidene chloride, vinyl acetate, acrylonitrile and mixtures.  The ester may be the biphenyl ester of the acids capric, lauric, palmitic, stearic, oleic, linoleic, undecanoic, tridecanoic, tetradecanoic, penta-decanoic, heptadecanoic, the 2-, 3-, 4- and 9 - decenoic acids, the 9- and 10- undecenoic acids, the 2-, 4-, 5-, 9-, and 11-dodecenoic acids, the 2- and 12- tridecenoic acids, the 4-, 5-, and 9- tetradecenoic acids, the 2- and 14- pentadecenoic acids, the 2-, 7-, and 9- hexadecenoic acids, 2 - heptadecenoic acid, the 2-, 3-, 4-, 5-, 6-, 7-, 8-, 10-, 11-, and 12-octadecenoic acids, elaidic acid, 2, 4 - pentadienoic acid, 2, 4 - hexadienic acid, 9, 11 - octadecandienoic acid, linoleic acid, elaestearic acid, hiragonic acid, moroctic acid, stearidonic acid and mixtures.  The stabilized polymers may be made into films and filaments or moulded.ALSO:Biphenylyl esters of unsubstituted straight-chain aliphatic monocarboxylic acids containing from 10 to 18 carbon atoms which are either saturated or contain from 1 to 4 ethylenic double bonds are made by converting the desired aliphatic acid to the acid chloride and reacting it with phenyl phenol under reduced pressure and at elevated temperature.  Acids which may be esterified with phenyl phenol are capric, lauric, palmitic, stearic, oleic, linoleic, undecanoic, tridecanoic, tetradecanoic, penta-decanoic, heptadecanoic, the 2-, 3-, 4-, and 9-decenoic acids, the 9- and 10-undecenoic acids, the 2-, 4-, 5-, 9-, and 11-dodecenic acids, the 2- and 12-tridecenoic acids, the 4-, 5-, and 9-tetradecenoic acids, the 2- and 14-pentadecenoic acids, the 2-, 7-, and 9-hexadecenoic acids, 2-heptadecenoic acid, the 2-, 3-, 4-, 5-, 6-, 7-, 8-, 10-, 11-, and 12-octadecenoic acids, elaidic acid, 2, 4-penta-dienoic acid, 2-4-hexadienic acid, 9, 11-octadecandienoic acid, linolenic acid, elaestearic acid, hiragonic acid, moroctic acid and stearidonic acid.  The ester may be used for stabilizing and plasticizing polyvinyl chloride resins.
Patent GB-730693-A (GB)
Title: Improvements in or relating to wave guide and discharge tube arrangements
IPC: H03B29/00
Filed: 1953-05-06
Abstract: 730,693. Wave-guides. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 6, 1953 [May 21, 1952], No. 12640/53. Class 40 (8). A discharge tube B is positioned in a rectangular wave-guide A to act as a noise generator, the ends E, F of the tube being bent back to pass through the same side of the guide. This arrangement reduces the impedance discontinuity due to the tube. The tube may be non- circular in cross-section having its shorter axis perpendicular to the axis of the guide. It is inserted into the guide through a longitudinal slot which is covered (except where the ends E, F pass through the wall) by a plate C which is integral with the tube. The tube may have an integral cover D which may be associated with switches for cutting off the tube supply or the power in the guide when the tube is removed. A modification is described in which the tube is smoothly curved from one end to the other. The depth of penetration of the tube into the guide may be adjustable. A prior-art arrangement is described (Fig. 1, not shown), in which a discharge tube passes obliquely through opposite walls of a rectangular wave-guide. The ends of the tube are enclosed in circular waveguides which communicate with the main guide and have a cut-off frequency above the working frequency of the main guide.
Patent GB-353087-A (GB)
Title: Improvements in and relating to heat exchangers for heating air and water by the furnace gases from steam generators
IPC: F22D1/36
Filed: 1930-04-25
Abstract: 353,087. Heating air and water. ADAMSON & CO., Ltd., D. and KERFOOT, G., Engineering Works, Dukinfield, Cheshire. April 25, 1930, No. 12751. [Class 64 (i).] A heat exchanger for heating air and water by the furnace gases from steam generators, particularly for use in the generator plant, consists of a number of passages 12, Fig. 2, formed by parallel plates 11, along certain of which hot gases flow from inlet 16, Fig. 3, to outlet 18 and heat water tubes 13 arranged parallel to the gas flow, the walls of these passages radiating heat into adjacent passages along which air flows from inlet 19 to outlet 17. The apparatus may be divided by a plate 15 compelling the air and gases to make two passes in the apparatus. The water tubes are connected up by U-joins which are detachable or have closable openings to allow the tubes to be opened up. These U-joins may be isolated inend chambers 2, 3, Fig. 8, having removable covers 24 the water tubes 13 passing through expansion sockets 22 in a dividing wall 21. The air passages are closed at the ends by stoppers 14, Fig. 7, having curved ends 20 to guide the hot gases into the gas passages on each side of the air passage. One half of the heating may be wholly for air and water, and the other half a combination of the two, or water tubes may be omitted from some of the gas passages if it is desired to heat one of the two fluids more than the other.
Patent GB-365445-A (GB)
Title: Improvements in and relating to air heaters
IPC: F26B21/00
Filed: 1931-04-30
Abstract: 365,445. Heating air. ELSWORTH, O., of Tyneside Foundry & Engineering Co., Skinner Burn Road, Low Elswick, Newcastle-on-Tyne. April 30, 1931, No. 12766. [Class 64 (i).] An air heater comprises a fan n delivering air under pressure to furnace heated tubes j having a combined cross sectional area ess than that of the fan outlet, and an internal or external pressure air byepass which does not decrease the supply of pressure air to the heating tubes ; the byepass regulates the temperature of the air leaving the outlet g. The byepass conveniently consists of tubes x of larger diameter than the heating tubes and closed by caps y operated from the outside by rods z. The soot can be scraped off the heating tubes by washers v dragged along by rods w. The fan is provided with a regulating damper m. Specification 350,294, [Group XII], is referred to.
Patent GB-276416-A (GB)
Title: Improvements in stringed musical instruments
IPC: G10D3/02
Filed: 1926-05-19
Abstract: 276,416. Chesterton, E. C., (Hazell, R A.). May 19, 1926. Bowed instruments; soundmagnifying attachments; bridges; bow guides; devices to facilitate support of.-In a stringed instrument in which a diaphragm 10 is arranged in the hollow body, and with which a horn attached at 12 may be employed, a bridge 6 connected to the diaphragm has a straight edge supporting three or more strings to be played simultaneously by a bow. The bridge, preferably of metal, is partly mounted on a pin 13a, and may be either screwed or clamped to the diaphragm, or connected through a bell-crank lever or equivalent, linkage. The bridge may be of inverted V-shape and support six strings, three in each of two planes, either set or the two middle strings beang playable in harmony, and solos being playable on each of the two outside and two middle strings. The bow may be guided by four prongs 17. The instrument may be provided with a shaped plate by which it may be held between the knees of a player.
Patent GB-295663-A (GB)
Title: Improvements in or relating to steam traps
IPC: F16T1/38
Filed: 1927-05-13
Abstract: 295,663. Gass, W. G. May 13, 1927. Steam traps.-In a steam trap, shown as of the expansion type, a dirt catcher is made in one therewith or attached thereto to form a single appliance. In the form shown dirt, passing to the trap valve 6 with steam entering at 8, is retained in the chamber 12 and can be blown out at intervals through the plug hole 13 in the side of the chamber.
Patent GB-1419138-A (GB)
Title: Apparatus for handling refractory ferrules
IPC: B22D35/04
Filed: 1973-03-16
Abstract: 1419138 Moulders' tools for lining moulds CREUSOT-LOIRE 16 March 1973 [22 March 1972] 12851/73 Heading B3F [Also in Division B8] Mechanical handling apparatus for positioning a stack 5 of refractory ferrules (lining sections) inside a downgate for the bottom pouring of ingot moulds comprises a rod 1 with a hookengaging shackle 2 at one end and a guide tip 3 at the other end. An elastomeric cylinder 10 positioned adjacent the guide tip is located between relatively movable plates, one 11 of which is connected to an operating rod 12 movable by an over-centre toggle linkage 13, 14 controlled by a lever 7. In use the ferrules are manually threaded on to the rod to abut a stop plate 4. Actuation of the lever 7 then expands the cylinder 10 to grip the adjacent ferrule and hold the stack on the rod. The stack is then inserted in the downgate until almost in position whereupon the lever 7. abuts the end of the downgate to release the cylinder 10 so that the apparatus may be removed. In an alternative embodiment, Fig. 3 (not shown) the elastomeric member is formed of three equally spaced members (16) compressed by a cam (19a) moved by a control rod (18). In a further embodiment, Fig. 4 (not shown), the three members (21) are secured to guide block (22) movable along a guide inclined to the axis of the rod. In yet a further embodiment the elastomeric member is a fluid inflatable sleeve (31) fluidly connected to a chamber (35) with a flexible membrane (36) movable by a toggle linkage (37) controlled by a lever (38).
Patent GB-852709-A (GB)
Title: Satchels and like containers for use in motor vehicles
IPC: B60R7/04
Filed: 1958-04-23
Abstract: 852,709. Satchels. KEEGAN, L. M. April 16, 1959 [April 23, 1958], No. 12857/58. Class 133. A flexible satchel having several compartments formed by panels 4, 8 and 9 has the side 4 hemmed around a rod 5 of which the ends 5a are formed into U-shaped loops which can suspend the satchel by engaging over the back of a car seat 6. A sheet 11 stitched to the panel 4 forms a map pocket and stitched edges are bound as at 12 ; a stiffening rod 13 may be provided.
Patent GB-1092763-A (GB)
Title: Improvements in or relating to miniature electric motors
IPC: H02K5/14
Filed: 1965-03-26
Abstract: 1,092,763. Brush holders for dynamo-electric machines. T. MABUCHI. March 26, 1965 [Dec. 9, 1964], No. 12883/65. Heading H2A. A miniature electric motor contains brush means 1, Fig. 3, having a metallic holder 11, 12 embracing the peripheral surface of the carbon brush to permit a high value electric current to be supplied thereto, the carbon brush being urged against the commutator by a bent spring 4 (Fig. 1, not shown) contacting the rear of the brush and secured to an ancillary brush holder element 31 serving to securely hold the contacting surface of the brush in the close vicinity of the commutator.
Patent GB-216537-A (GB)
Title: Apparatus to facilitate the adjustment of the tool to the work in machine tools
IPC: B23Q17/22
Filed: 1924-05-26
Abstract: 216,537. Pantoflicek, B. May 26, 1923, [Convention date]. Turning; gauging-devices. - An apparatus for adjusting the tool relatively to the work in lathes or other machine tools comprises an optical observing apparatus mounted in the sleeve portion 2 of a forked member 1, the limbs 3, 4 being bored to receive a setting member 8 mounted between the lathe centres 10, 11 and having an observing edge 37 in the same vertical plane as the work axis. The microscope is provided with cross-wires 22 symmetrically disposed with regard to further marks 21, and spirit levels 40, 41 are fitted for adjusting the microscope to vertical and horizontal positions respectively. In one method of operation the microscope is first adjusted with the marks 21 coincident with the edges 37 of the setting member. The latter is then removed and the apparatus mounted by means of pins 7. A screw-cutting tool 20 may now be set to coincidence with the cross-wires 22, Fig. 5. By adjusting the microscope to a horizontal position the tool 20 may be set to the correct height.
Patent GB-380433-A (GB)
Title: Improvements in or relating to moulding for the manufacture of refractory articles
IPC: B28B1/093
Filed: 1931-05-01
Abstract: 380,433. Tamping-apparatus for use in moulding refractory bricks &c. LUX, E., 202, Rellinghauserstrasse, Essen, DANIELS, W. H., 174, Pestalozzistrasse, and KUHN, E., Am Hochofen, both in Heerdt, Dusseldorf, both in Germany.- (Assignees of Koppers Akt.-Ges., H. ; 29, Moltkestrasse, Essen, Germany.) May 1, 1931, No. 12950. Convention date. May 3, 1930. Addition to 380,432. [Class 87 (ii).] The apparatus of the parent Specification is modified by the provision of a piston of less area than the surface of the mould. Thus material placed in the dismountable mould 31 is vibrated by the ram 35 operated by the pneumatic hammer 38. After the material has been tamped all over by successive movement of the ram over the whole surface of the mould, the latter is filled to overflowing with additional material, a plate larger than the mould placed over it and the plate then tamped by the ram to consolidate the new material and present a level surface. The ram may be provided with a rounded or patterned under surface. Several independent rams may operate at the same time on large objects.
Patent GB-1420444-A (GB)
Title: Fishing rod handle construction
IPC: A01K87/06
Filed: 1973-03-19
Abstract: 1420444 Fishing rod handle DAGGEEM Inc 19 March 1973 12997/73 Heading A1A The handle for a fishing rod accepts the foot of a fishing rod in a choice of positions. The main member 10 comprises a depressed central section 16, a rear handle 15, a finger grip 14 and a rod support 33. At the rear of the central section 16 is glued a channel member 21 and at the front is a U member 23 held in position by a headed bolt 19 passing through a hole 18 into a tapped boss 26 of the U member. The U member 23 has channels 25 corresponding to those 22 in the channel member 21 and these channels together provide a choice of positions to locate the foot 28 of a reel 29, the screw 19 in combination with the sloping wall 13 supplying the clamping action. The components may be of plastics e.g. polycarbonate, or aluminium.
Patent GB-310197-A (GB)
Title: Improvements in tabs for slipping on to cards, folders and the like
IPC: B42F21/08
Filed: 1928-05-03
Abstract: 310,197. Weinmann, K. May 3, 1928. Index tabs. - index cards, folders, and the like are provided along one edge with a hooklike overhanging portion f, Fig. 6, formed by bending the edge of the card upon itself or by attaching thereto a strip or bar f, Fig. 8, of metal, pressspahn, celluloid, or the like, to engage an inside tab provided with an inwardly bent tongue d, formed by bending or stamping one of the limbs b of the tab, as shown in Figs. 8 and 10. The tongue d stamped from the limb of the tab may extend behind a part or the whole depth of the overhanging member f on the card, or it may be offset at right-angles to the plane of the limb so that it engages only against the lower edge of the member f. The tabs may be made from a single strip of metal bent upon itself, or two strips of metal riveted or welded in known manner, and index characters may be marked upon the upper projecting portion a of the tab, or windows may be provided therein for the reception of labels.
Patent GB-1001215-A (GB)
Title: Steroids
IPC: C07J71/00
Filed: 1964-03-31
Abstract: The invention comprises steroids having the following structural formula: <FORM:1001215/C2/1> in which: R is H or the acyl radical of a carboxylic acid having up to 9 carbon atoms; R1 is (a -H)b -Cl, O, (a -H)b -OH, (a -H)b -OR in which R has the above mentioned meaning; R11 is H or CH3; X is H or a -OH; Y is H or a -OH, a -CH3 or b -CH3; or X and Y together are the group <FORM:1001215/C2/2> and Z is F or Cl, and a process for the preparation thereof which comprises treating a compound of the formula: <FORM:1001215/C2/3> in which R1, R1, R11, X, Y, and Z are as defined above, with a formamide and a chlorinating agent at 40 DEG -80 DEG  C. and subjecting the product to alkaline hydrolysis.  As formamides there may be used dimethylformamide, diethylformamide, methylethylformamide, methylphenylformamide or formylpiperidine.  Pharmaceutical compositions having antiinflammatory, antirheumatic and anti-allergic activity and containing the above compounds are administered parenterally, orally, or topically in solutions, tablets, powders, ointments, and emulsions.