baber/WOPTO huggingface dataset:
Patent GB-792365-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J1/15
Filed: 1954-07-09
Abstract: 792,365. Discharge lamps; thermionic cathodes. SYLVANIA ELECTRIC PRODUCTS, Inc. July 9, 1954 [July 10, 1953], No. 20217/54. Class 39(1). An electric discharge device such as a discharge lamp comprises an envelope and two lead-in wires sealed through the envelope and connected by a cathode comprising a cable constituted by at least two wires wound together in parallel to form a helical coil, the cable being wound helically again to form a coiled-coil, the wires in the cable being spaced from one another, and no other wire being connected in parallel with the wires within the envelope. Four 1À25 mil. tungsten wires 1, 2, 3, 4 are wound, with 51 turns of each wire per inch, on a 2À5 mil. molybdenum mandrel 5, Fig. 1, and the structure is wound with 105 turns per inch on a 9 mil. molybdenum mandrel 6, Fig. 2, to form a coiled-coil. The structure is annealed in wet hydrogen at about 1550‹C. for a period of about 5 or 6 secs. and then wound on a 26 mil. steel mandrel 7, Fig. 3, with 28 turns per inch, the steel mandrel being then mechanically withdrawn to form a coiled-coiled-coil. The structure is then annealed in dry hydrogen for 10 mins. at about 1500‹C. and the mandrels 5 and 6 dissolved out in a mixture of four parts nitric acid and one part sulphuric acid. A coating or filling of one or more alkaline earth carbonates is applied to the coil, the carbonates being changed to oxides by heating during exhaust of the device.
Patent GB-615977-A (GB)
Title: A method of rendering nutrient constituents of foods and animal feeds more readily assimilable
IPC: A23K3/02
Filed: 1945-08-07
Abstract: Artificially dehydrated forage crops are treated with water below 100 DEG  C. and redried to substantially their original state of dryness in order to re-actuate and to render more readily assimulated the nutrient constituents which were inactivated by the dehydration. Grasses, alfalfa, clover and legunnes are referred to.  In an example 3 1/2 parts of water are used with one part of grass at 60 DEG  C. and allowed to stand for 5 hours then redried at 80-90 DEG  C.  Grass treated in this manner and untreated grass were fed to chicks with a complex basal ration. In other examples grass was treated with water at 80 DEG  C. for periods from 5 minutes to 24 hours, and also subjected to the action of a proteolytic enzyme.ALSO:Artificially dehydrated forage crops, for human consumption are treated with water below 100 DEG  C., and dried to substantially their original state of dryness in order to re-activate and to render more readily assimilable the nutrient constituents which were inactivated by the dehydration.  Grasses, alfalfa, clover and legumes are referred to. In an example, 3 1/2 parts of water are used with one part of grass at 60 DEG  C., and allowed to stand for 5 hours then redried at 80-90 DEG  C.  In other examples grass was treated with water at 80 DEG  C. for periods from 5 mins. to 24 hours, and also subjected to the action of a proteolytic enzyme.
Patent GB-516790-A (GB)
Title: Improvements in or relating to fluid pumps or engines
IPC: F04C14/26
Filed: 1938-07-08
Abstract: 516,790. Rotary pumps. McCONNEL, J. C. I. July 8, 1938, Nos. 20244 and 36030. [Class 110 (ii)] A gear-wheel pump can be turned within an external fixed casing so as to bring the inlet and discharge ports of the pump proper into register with selected ports in the external casing. In Fig. 1 there are two ports A', A' in the casing A and by turning the pump B halfway round, the functions of the ports A', A<2> are exchanged. Two or more delivery ports A' may be arranged near together and the suction port D made sufficiently broad to maintain connection with the port A<2> whichever of the delivery ports is selected. The pump is held in the selected position by a spring-pressed nozzle-like part E which enters the conical mouth of a bush A<3>. To permit the pump to be turned, the part E is withdrawn by means of a shaft F and arms F<1>. A bye-pass G, G<1> with a spring-controlled valve is provided. The spaces within the casing may be heated or cooled by steam or other medium circulated through ports M, M<1>. The pump can be arranged to 'turn within a ported casing lying to one side of it. Specification 121,686, [Class 110 (ii)], is referred to.
Patent GB-343094-A (GB)
Title: Improvements in and relating to grates or fuel supports for gas producers
IPC: C10J3/34
Filed: 1929-08-13
Abstract: 343,094. Gas producers. CLIMIE, W., 38, Philip Street, Falkirk, Stirlingshire, and DUNLOP, J. E., 50, Wellington Street, Glasgow. Aug. 13, 1929, No. 20275/30. Divided on 343,065. [Class 51 (i).] Grates; ashpit8.-A grate for a gas producer comprises a number of superposed stationary truncatic conical sections 7, supported on a base plate 9 and a rotatable section 7<1> carrying a bar 13 preferably of T or angle section, arranged diametrically of the grate and adapted to scrape the stationary sections. The rotatable section 7<1> is supported on a shaft 14 carrying a plate 21 driven by worm gearing 20. Suitable ball and roller bearings are provided for the shaft. Air is supplied to the overlapping grate sections from a conduit 18 as indicated by the arrows. The baseplate 9 carries a flange 25 dipping into a water sealed rotary ashpit 22, having inner and outer flanges 23, 24, and provided with a plough 28 to move the ashes outwardly. The ashes are discharged from the pan by a scoop 29.
Patent GB-259713-A (GB)
Title: A new or improved receptacle for holding false teeth when not in use
IPC: A45D44/20
Filed: 1925-08-14
Abstract: 259,713. Farmer, G. H. Aug. 14, 1925. Disinfecting. - A bath or receptacle for the reception of artificial teeth for cleansing or disinfecting &c. comprises a shallow glass, porcelain, &c. dish of approximately the shape and dimensions of the dental plate, and having side walls which slope inwardly. The dish a may be provided with a hinged or other lid d, and with ribs c on the base.
Patent GB-1466441-A (GB)
Title: Hydraulic piston machines
IPC: F04B1/107
Filed: 1974-05-09
Abstract: 1466441 Reciprocating motors and pumps SULZER BROS Ltd 9 May 1974 [9 May 1973]  20562/74 Heading F1A [Also in Division F2] In an hydraulic motor or pump comprising a rotary cylinder block 2, Fig. 1 supported on a stationary pintle valve 1 and having pistons 4 engaging bearing surfaces 6 on a rotary member 14  whose rotation axis B is eccentric relative to the block axis A, the inlet and outlet ports 11, 12 are formed as stepped recesses 32, Fig. 2, to function as hydrostatic bearings, and the piston foot 5, Fig. 6, has a stepped recess 20, 24 connected to the cylinder via restriction 21 to form a hydrostatic bearing. The area of stepped portion 24 may be at  least 1À1 times the piston area, and the area of recess 20 may be not greater than 90% of the piston area, the step depth t being 10 to 50% of the gap formed in operation between the bearing surfaces of the piston and member 14. Stepped balancing pockets 33, Fig. 2, on either side of each port 11, 12 are connected to the diametrically opposite port by passages through the pintle. Peripheral grooves 31 between the ports and pockets are vented to the casing by axial grooves 40. In the modification of Fig. 8 (not shown), the balancing pockets are omitted and the port and step areas dimensional to satisfy a specified Formula.
Patent GB-1006546-A (GB)
Title: Improvements in or relating to apparatus for making steel
IPC: C21C5/46
Filed: 1961-12-18
Abstract: 1,006,546. Metallurgical converters; converter chimneys. CALDERON AUTOMATION Inc. Dec. 18, 1961 [Dec. 19, 1960; May 4, 1961], No. 20654/65. Headings F4B and F4J. The converter 120 used in the steel-making plant disclosed in Specification 1,006,545 has additional lifting trunnions 126 whereby on movement of its carriage 130 into the teeming aisle it may be attached to a spreader bar 270 and lifted by a pair of teeming cranes 71 for removal and replacement of its lining. While in the teeming aisle, the converter may be tilted for pouring slag and metal about trunnions 127 by a motor 141 on a platform 140 through gearing 142-146 and a clutch 147. The second motor and drive is used as a spare. Modified apparatus, Fig. 6, has two converters 395 mounted side by side on carriages 390 in a furnace aisle 352 flanked by a charging aisle 351 and teeming 353, the carriages 390 being moved by the ladle car 385. Associated with each converter is a hood 405 having a vertically movable lower extension 406 formed with a sealing lip 407 engaging the converter mouth, said hood being connected to an exhaust duct 416 with a fan 421 leading to a dust collector 417. Oxygen lances 408 operated by a hoist 409 extend through the hood and fluxes are supplied from a hopper 415 through a shoot 412 and an adapter 411 on the hood.
Patent GB-801266-A (GB)
Title: Method of making valve lash adjusting screws
Inventor: WIDMANN ADOLF AUGUST
IPC: F16B39/22
Filed: 1956-07-04
Abstract: 801,266. Making screws; forging; extruding. NATIONAL MACHINE PRODUCTS CO. July 4, 1956, No. 20687/56. Classes 83 (2) and 83 (4). A method of making a self-locking valve lash adjusting screw, such as a tappet adjusting screw, comprises forming an external thread on a blank, boring the latter for the major part of its length and radially expanding the blank over at least one part 40, 42, Fig. 4, of its threaded circumference for the major part of the bore. A tappet adjusting screw of the kind described in Specification 801,265, Fig. 2 (not shown), is made from a solid cylindrical blank 60, Fig. 5 (not shown), sheared from steel bar stock of low sulphur and manganese content. The blank is first upset in two stages, Figs. 6 (not shown), 7, to provide a hexagon head with a central recess, using punches 74, and simultaneously the forward end 62 is extruded to reduced diameter. This end is then machined to spherical form 24, Fig. 8, by a forming tool 74 and a finishing tool 76 and the shank is threaded by thread rolling dies 78, 80, Fig. 9 (not shown). The blank is then supported by spring-biased jaws 84, Fig. 10 (not shown), drilled in three stages and subsequently reamered. A press tool 94, Fig. 14, having curved surfaces 104, 106, is pressed through the bore to form the enlargements 40, 42, Fig. 4. The tool surfaces 104, 106 may be provided by carbide inserts brazed therein. The screw is subsequently hardened by carburizing and the ball end further hardened.
Patent GB-148912-A (GB)
Title: Improvements in electrical switches
IPC: H01H1/58
Filed: 1920-07-10
Abstract: 148,912. Aufranc, P. July 11, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 148,150. Switches, quick-action.-Consists of a modification of the switch described in the parent Specification, comprising an improved method of mounting the terminals and fixed contacts, an eccentrically mounted rotatable contact member, and alternatively the provision of a third terminal converting the switch to the two-way type. Referring to the drawings, the fixed contacts, Figs. 2 and 3, are of rectangular form provided with lugs f2, which are threaded over the terminal rods g. Springs h are provided, the free ends h1, h2 bearing against the porcelain support a and the plates f respectively. The central conducting piece d is eccentrically mounted on the spindle b which has an operating handle c, the motion of which is transmitted by the squared head b, pressing against the sides of the slot d. The terminals g are supported in recesses j of the support a and provided with clamping screws i in holes t for the leads, which pass through the orifices s. Fig. 4 shows the addition of a third terminal f3 in metallic contact with d whose motion connects it to either or both of the fixed contact members f1, f2.
Patent GB-426300-A (GB)
Title: Improvements in or relating to reversing gear for internal combustion engines
IPC: F01L13/00
Filed: 1934-07-16
Abstract: 426,300. Reversing; starting. SULZER FRERES SOC. ANON., Winterthur, Switzerland. July 16, 1934, No. 20751. Convention date, July 22, 1933. [Class 7 (v)] [See also Group XXVIII] In a reversing gear for engines of the fuelinjection compression-ignition type, on moving a control cam from the " forward" to the " reverse position, the fuel supply is cut off until the engine has ceased to rotate in the first direction and makes a commencing rotational movement in the opposite direction under air pressure only, whereupon a trip mechanism automatically imparts to the control cam a movement which brings about the restoration of the fuel supply. In the arrangement shown, starting in either direction is effected by compressed air admitted from a supply pipe 3 through a starting valve 2 and a valve 32 controlled from the starting and reversing lever 5, which also controls the fuel supply by acting upon the suction valve 8 of the fuel-injection pump 6. The valve 2 is actuated by a forward or reverse starting cam when the lever 5 is in the position A or A<1>. A tappet member 27 reciprocating in a guide 28 carries a roller 29 bearing on a control cam 25 pivoted to the lever 5, and arms 30, 41 on the tappet member engage respectively a rod 10 acting on the suction valve 8, and the stem 40 of a valve 36 adapted to admit compressed air from the pipe 3 through branches 37, 38 to a cylinder 35 in which moves a piston 34 on the stem of the valve 32. Beneath the control cam 25 is a lever 20 pivoted at 21 and movable between stops 23. The lever 20 carries a roller 22 for engagement with a cam face 26 on the member 25. A rod 11 in pin-and-slot connection with the lever 20 has a tooth 12 for engagement by dogs 15 formed by a slotted ring 14 mounted on the engine cam shaft 4, the rod 11 being held in frictional engagement with the cam shaft by the pressure of the starting air acting through a branch 18 on a piston 16 carrying a roller 19 bearing on the rod. The positions A, B of the lever 5 correspond to forward starting and running of the engine and the positions A<1>, B<1> to reverse starting and running. To effect reversal, the lever 5 is moved from position B to position A<1> and the starting valve 2 is opened. The cam face 26 on the member 25 rides over the roller 22 and the tappet 27 is lifted, opening the suction valve 8 of the fuel pump and the air valve 36, so that the fuel supply is cut off and the starting-air admission valve 32 is opened by air pressure on the piston 34. The starting air brakes the engine until it comes to rest and commences to rotate in the reverse direction, whereupon the reversal of the cam shaft 4 causes the rod 11 to be moved to the right in Fig. 1 by the engagement of a dog 15 with the tooth 12. The roller 22 is thus tripped off the cam face 26, allowing the member 25 to drop and the overflow valve 8 and air valve 36 to close. The valve 36 has a reduced portion allowing air from the cylinder 35 to escape through a port 39 when the valve 36 is closed.
Patent GB-460215-A (GB)
Title: Device for controlling the pressure medium of power-operated speed changing-mechanism
Filed: 1935-07-22
Abstract: 460,215. Controlling change-speed gearing. MAYBACH-MOTORENBAU GES. July 22, 1935, Nos. 20838 and 20839. Convention dates, Aug. 8, 1934 and April 20, 1935. [Class 80 (ii)] Control mechanism for pressure-medium servo-operated preselective change-speed gearing 10, Fig. 1, comprises a valve 22 opened by a vehicle accelerator pedal 7 to admit pressure air (or suction) to a branch conduit 1 which air opens a valve 32 admitting pressure air from another branch conduit 4 to effect a speed change preselected by a lever 13. The lever 13 turns a selector valve, not shown, to preselect, and the change is effected when a main valve 23 is opened by the pressure air in the conduit 4 so that air from a reservoir 6 shoots directly down still another conduit 2 into the box 10 and through the selector valve to executive pistons, not shown. The air which passes the valve 22 opens the valve 32 by pressing on a piston 31. Air which passes the valve 32 opens the valve 23 by pressing on a piston 24. The change-speed gear envisaged is one with repelling clutch teeth according to Specification 298,186, [Class 80 (ii)], and until the clutch teeth have engaged fully, a piston 33 is kept raised so that the main valve 23 is held open. A cam disc 17 carried by the selector lever 13 opens a valve 29 admitting air to the conduit 4, and also a valve 25 allowing air to pass on to a valve 26 adapted also to be opened by the accelerator 7 to pass to a clutch-controlling conduit 3 and to a servomotor 11 to engage an engine clutch 11<1>. In a form shown in Fig. 2, the air admitted by opening the valve 22 by the accelerator 7 in addition to opening the valve 32 as described, opens also a valve 52 admitting air from another conduit 53 ultimately to engage the engine clutch 11<1>. In the clutch-controlling conduit 3 is a stop valve 38 opened by an engine-driven governor 37. Specification 369,864 also is referred to.
Patent GB-667559-A (GB)
Title: Improvements in time delay relays
IPC: H01H53/10
Filed: 1950-08-23
Abstract: 667,559. Protective cut-out arrangements; induction motor relays. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 23, 1950. [Aug. 25, 1949] No. 20889/50. Class 38 (v). [Also in Group XXXV] In a motor-operated time delay relay the drive between the motor shaft 20 and the contact member 23 includes two non-intermeshing gear-like members 21, 22 of magnetic material positioned between the poles 16a of an electromagnet 14 so that when the magnet is energized the drive is transmitted by the magnetic attraction between their teeth. The member 21 is a worm shaped as shown so that there is a succession of very narrow gaps between portions of the spiral tooth of the worm and teeth of the worm wheel 22. When the magnet 14 is energized, for example because of an overload in the line 6, the induction motor 13 is also energized and drives the disc 18 and shaft 20 which through the coupling 21, 22 slowly drives the contact arm 23 till it engages contacts 5. Further rotation of the motor would do no harm since slip could then occur between the non-touching parts 21, 22. When the magnet 14 is de-energized a spring 24 immediately returns the contact arm 23 to its initial adjustable position.
Patent GB-971915-A (GB)
Title: Mouldable oxymethylene polymers
Inventor: KRAY RAYMOND JOSEPH
IPC: C08G2/00
Filed: 1960-11-09
Abstract: A mouldable oxymethylene polymer is prepared by copolymerizing trioxane, a cyclic ether having at least two adjacent carbon atoms and a glycidyl ether. Specific cyclic ethers are ethylene oxide, dioxolane, trioxepane, dioxane, trimethylene oxide, pentamethylene oxide, 1-2-propylene oxide, 1-2-butylene oxide, neopentyl formal, pentaerythritol diformal, paraldehyde, tetrahydrofuran and butadiene monoxide while methyl, ethyl, propyl, cyclohexyl, isopropyl, n-butyl, isobutyl, t-butyl, allyl and phenyl glycidyl ethers and the diglycidyl ethers of bis-phenol-A are specified termonomers. Catalysts e.g. boron fluoride complexes may be present and the reaction may be short stopped e.g. with tri-n-butylamine.
Patent GB-289306-A (GB)
Title: Improvements in wind sifting devices
IPC: B07B4/06
Filed: 1927-08-08
Abstract: 289,306. Walther et Cie Akt. Ges. June 22, 1927, [Convention date]. Pneumatic separating.-A sifter, particularly suitable for coal pulverizing mills, constructed in the form of a rotating drum b with cells d from which the material falls through an air current passing axially through the drum into a hollow cone c, has provided in the drum an annular helically arranged d flange n for feeding the material axially in the opposite direction to the air current. The cells are arranged circumferentially in groups with walls so inclined that the material only falls when the cells reach their highest positions. The material fed back by the flange n falls into a funnel o from which it is fed by the worm g into the ring mill a, in the lower part of which is provided a worm f for feeding material into the drum b. The fine material carried by the air current into the channel k is sifted further by a rotating sifting star p or disc. The axial air current is obtained by passing air, which may be heated for drying purposes, through a pipe i and distributing it through a stationary sieve m.
Patent GB-793411-A (GB)
Title: Improvements in the production of alpha-chloroacrí¡í¡ acid esters
IPC: C07C69/653
Filed: 1956-07-06
Abstract: The invention comprises a process for dehydrohalogenation of dichloropropionic esters containing at least one a -chlorine atom, by treating with salts of metals of the first sub-group to the 8th main group of the Periodic System, in the gas phase.  In examples, methyl or butyl a -b -dichloro-propionates are passed over alumina impregnated with barium chloride, activated carbon with cupric chloride, kaolin, montmorillonite and activated carbon with barium chloride, to give methyl or butyl a -chloroacrylate.  A list of other metal salts which may be used as catalyst on activated carbon is given, and other esters which may be used (including cycloalkyl and aralkyl esters) are specified.  Silicates in the form of other clays are also mentioned, and mixtures thereof and with magnesium oxide. Alpha-alpha-dichloropropionic esters may also be used as starting-material.
Patent GB-1462153-A (GB)
Title: Electrical machines
IPC: H02K5/14
Filed: 1975-05-16
Abstract: 1462153 Commutator machines SIEMENS AG 16 May 1975 [16 May 1974] 21019/75 Heading H2A An electrical machine has an electrically conductive rotary portion (4), Fig. 1 (not shown), on a shaft (5), and a member (2) carrying brushes 7, 8, 9 and having protuberances 21, 22, 23 extending radially outwardly relative to the shaft (5), the protuberances 21, 22, 23 being held between a first (1) and a second part 3 of a housing which surrounds the rotary portion (4), the boundary between parts (1) and 3 extending transversely of shaft (5), with the protuberances engaging in respective recesses 31, 32, 33 in one of said housing parts (1), 3 so that the housing parts (1), 3 provide stops against axial and radial movement of the brush-carrying member (2). A windscreen wiper motor has an injection moulded plastics plate (2) integrally formed with the protuberances 21, 22, 23, with portions 24, 25, 26 carrying carbon brushes 7, 8, 9 engaging a commutator 6, and with half-open sleeves 27, 28, 29 receiving anti-interference choke coils whose axial positions therein are defined by stops 271, 281, 291 integral with plate (2). The first housing part (1), Fig. 1, contains rotor (4) stator magnets (13), (14) and one bearing (10) of shaft (5), and the second housing part 3 contains another bearing (11) of shaft (5) and a worm (19) and worm wheel (12) transmission, the protuberances 21, 22, 23 being located in the recesses 31, 32, 33 of housing part (1) or 3 via noise-damping rubber members 15, 16, 17 which aid in forming a seal between the housing parts (1), 3.
Patent GB-712329-A (GB)
Title: Improvements in or relating to electro-magnetic devices for controlling fluid-pressure circuits
Inventor: STANBURY JOHN HERBERT
IPC: F15B13/043
Filed: 1951-09-05
Abstract: 712,329. Valves controlled by auxiliary valves. BRITISH MESSIER, Ltd. Aug. 26, 1952 [Sept. 5, 1951], No. 21025/51. Class 135 A piston control valve 14 having a pressure fluid inlet 12, working connections 17, 18, and exhaust passages 19, 20 leading to an outlet 13 is loaded in the upward direction by a spring 15 and movable in response to variations of pressure in a chamber 16 having supply and exhaust nozzles 36, 37 with which coacts an armature 30 mounted between pole piece extensions 27, 28 of a permanent magnet 22 and carrying windings 31 by which it may be polarized in either sense to move towards either of the nozzles. A spring 35 balances the force on the armature due to the flow from the nozzle 36. Instead of the armature being arranged between the nozzles as shown it is stated that it may have an extension at right angles which overlies upwardly pointing nozzles.