baber/WOPTO huggingface dataset:
Patent GB-1120978-A (GB)
Title: Jet silencer for an aircraft jet engine
Inventor: RODGERS BARRY
IPC: F02K1/40
Filed: 1967-04-07
Abstract: 1,120,978. Jet propulsion nozzles. ROLLSROYCE Ltd. April 7, 1967, No. 16150/67. Heading F1J. A silencer for an aircraft jet engine comprises a hollow body portion adapted for the flow therethrough of jet gases and having at the outlet end thereof a plurality of jet nozzles, there being valve means movable into and out of a closed position in which jet flow through a selected one or more only of the jet nozzles is reduced or prevented, the jet flow through the remaining unobstructed nozzles being symmetrical about the engine axis. The gas turbine jet engine shown comprises a jet pipe 16 which changes from a circular section at its upstream end to a section comprising three circular outlet nozzles 20, 21, 22 at its downstream end, the nozzles 20, 21, 22 being disposed in vertical alignment as shown. The nozzle 21 may constitute 50% of the total nozzle area and the nozzles 20, 22 each constitute 25% thereof. The nozzle 21 is provided with a valve member 24 which may be closed when full thrust is not required, e.g. during aircraft landing, so that flow through 50% of the nozzle area is prevented with consequent reduction in jet noise level.
Patent GB-236726-A (GB)
Title: Improvements relating to loose couplings for use in radio reception
IPC: H01F27/00
Filed: 1924-07-07
Abstract: 236,726. Monkhouse, F. H. P. July 7, 1924. Wireless tuning-apparatus, adjustable devices for.-A loose coupling for use in wireless reception comprises primary and secondary coils in alternating arrangement and in parallel disposition, and means for moving them simultaneously in a direction parallel to their axes in such a way that the distances between adjacent coils are equal. In a three-coil holder the outer coils are connected in series and may constitute the grid or the anode inductance of a valve set, the mid coil being the aerial or grid inductance. When more than three coils are used, all the primaries and all the secondaries are connected in series. The apparatus shown comprises fixed blocks b, c connected by guides d on which are mounted blocks e, f carrying coil-holders e<1>, f<1>. The. block c carries a coil-holder c<1>, The blocks e, f are connected by a lazytongs g to the block c. The coils are adjusted by a rod h extending through the blocks c, f and provided with a screwed end engaging the block e. The rod h is provided with a knob h<1>, In a modification, the block e is operated directly by a sliding handle. In another modification, the middle coil is fixed and the outer coils are operated by a rod having right and left-handed threads.
Patent GB-997400-A (GB)
Title: Novel physiologically active pyridazine derivatives, their preparation and pharmaceutical compositions incorporating them
IPC: A61K31/50
Filed: 1964-04-20
Abstract: The invention comprises mercapto-pyridazine-2-oxides of the formula <FORM:0997400/C2/1> wherein R is hydrogen or an alkali-metal atom, e.g. potassium, and R1 is an alkyl or aryl group, e.g. methyl or phenyl and their preparation by reacting a 3-halogeno-6-alkoxy- or aryloxypyridazine-2-oxide with an alkali-metal hydrogen sulphide RSH to give an alkali-metal compound of the above formula and, if desired, treating with an acid to give the free compound wherein R is hydrogen. ALSO:Pharmaceutical preparations having an antibiotic effect against micro-organisms comprise compounds of the formula <FORM:0997400/A5-A6/1> wherein R is hydrogen or an alkali-metal atom, e.g. potassium and R1 is an alkyl or aryl group, e.g. methyl or phenyl, in association with a pharmaceutical vehicle for human or veterinary use.  The preparations may suitably take the form of dusting powders, lotions, salves, creams, embrocations and balms for topical use, which when they contain water may also contain a surface-active agent; or the active compounds may be incorporated in toilet preparations such as hair creams, shampoos, liquid and solid soap preparations, cold creams and shaving creams.
Patent GB-583269-A (GB)
Title: Improvements in or relating to processes of and apparatus for the production of alkali cellulose
IPC: C08B1/10
Filed: 1944-08-28
Abstract: <PICT:0583269/IV/1> Alkali cellulose of uniform composition is obtained in a continuous manner by adding cellulose to aqueous alkali metal hydroxide solution to form a slurry, separating the slurry into its components, and varying the temperature of the slurry between slurry formation and component separation in order to change the degree of swelling of the alkali cellulose component in accordance with and to counteract any initial variations in its swelling characteristics, so that alkali cellulose in uniformly swollen state is supplied to the slurry separating device. Referring to the drawing, sheets of cellulose 44 are uniformly fed by hand or by the feeding apparatus described in Specification 549,610, [Group XVI], to the slurry forming receptacle 10. Aqueous sodium hydroxide is constantly added to receptacle 10 from constant level supply device 16.  The sheets of cellulose are guided into draft tube 19, wherein they are disintegrated and mixed with the aqueous alkali to form a slurry by rotating blades 22.  The slurry is drawn from outlet 26 by pump 27 and is passed to conduit 28.  A portion of the slurry in conduit 28 is forced under pressure into a slurry separating device comprising chamber 40 and rotating perforated pressing rolls 41, 42 constructed in the manner described in Specification 551,080, [Group I].  Another portion passes through conduit 31 to pressure actuated viscosimeter 30 and back to receptacle 10.  The major portion passes through valve 35 and back into receptacle 10 from nozzle 33.  The slurry in receptacle 10 is maintained at constant temperature by passing heating or cooling liquid through jacket 8. Throttling valve 35 is controlled by pressure regulating controller 34 to maintain constant pressure in conduit 28.  A heating jacket 29 surrounds conduit 28 and valve 37 regulates the amount of steam or other fluid admitted to the jacket, the valve being controlled by viscosimeter 30 which operates to open and close valve 37 in accordance with increase or decrease in pressure in conduit 31.  Any variation in the cellulose feeding rate or in the degree to which the cellulose is swollen alters the slurry viscosity and hence the pressure in conduit 31.  The non-yielding slurry pressing rolls 41, 42 which are sealed in chamber 40 to maintain the slurry under pressure, are perforated so that aqueous alkali is discharged into the inside of the rolls and led away by means not shown and a constant volume of alkali cellulose 43 of constant press weight ratio is discharged between them.
Patent GB-168448-A (GB)
Title: Improvements in mechanical toys
IPC: A63H13/00
Filed: 1920-06-16
Abstract: 168,448. Lawson, C. G. June 16, 1920. Mechanical toys.-The driving-mechanism of a toy animal &c. is "wound up " by pulling its tail j. The animal a is supported on idle wheels d and driving-wheels r, the latter being operated through gearing o, p, q by a sliding rack n. The tail j is of elastic material and contains a flexible inextensible wire coil s, one end of which is fixed to the free end of the tail j and the other end to the rack n. When the tail is pulled, the rack n is drawn back, and when released the tail contracts and pushes the rack n forward, thus rotating the wheels. The eyes of the animal are fixed eccentrically to a spindle x fitted with a wheel y which engages the rack n in its forward position. The eyes are thus turned to look forward and backward alternately. A wire 'spring; brake u is fitted.
Patent GB-876183-A (GB)
Title: Continuous electrolytic surfacing of metal membranes
IPC: C25D11/02
Filed: 1958-05-21
Abstract: 876,183. Anodizing strip metal on one side. LLOYD, A. J., and LLOYD, J. B. C. May 21, 1958, No. 16329/58. Class 41. In the electrolytic treatment of a continuous sheet or strip, e.g. plating or anodizing aluminium, the sheet or strip is treated on one surface only by flowing over the surface a layer of electrolyte and applying a potential across the interface of sheet and electrolyte layer, whereby the charge is distributed uniformly over the surface. In a suitable apparatus, a supply roll of metal strip 10, Fig. 1, passes through the treatment zone aided by rollers 16, 18 to the re-coiling drum 14. The treatment zone consists of a series of weir boxes 20, 22 ... 30, each having a perforated floor from which liquid flows over the moving strip which is supported by a rounded member 32, Fig. 2, to give the strip a " crown." The liquid flows over the surface of the strip as a continuous layer and is caught in troughs 40 which direct the liquid to a sump 42 from which it is pumped back to the weir box. The sump 42 may have a cooling coil. Between each weir box a wiper 48 removes liquid from the surface of the strip. When anodizing aluminium strip the liquids are arranged as follows: (20) caustic wash, (22) water rinse, (24 H2SO4 or chromic acid, (26) water rinse, (28) dye, (30) boiling water to seal the anodized coating. The cathode is mounted at 50 in the weir box 24; the anode comprises a metal or graphite plate or perforated grid 52 mounted in contact with the under surface of the strip and acting also as support. This electrode may also be in the form of bars mounted side by side.
Patent GB-275535-A (GB)
Title: Ventilation fitting
IPC: F24F13/06
Filed: 1927-06-21
Abstract: 275,535. Thermo-Tanks, Ltd., Sept. 3, 1926, [Convention date]. Ventilators; valves.-A ventilation fitting automatically rotatable during the delivery of air comprises a rotatable valve or outlet device c have a discharge opening i for the passage of ventilation air, and a nozzle or nozzles for the discharge of a jet or jets of air distinct from that passing the valve or outlet and in a direction tangential to the axis of rotation. The discharge outlet i is provided in a ball valve h mounted in a socket in the rotor casing e. The nozzles are arranged in the roots of retarding vanes k, and each consists of a pair of coaxial cylinders l, m, of which the outer is angularly movable over the inner within limits prescribed by a screw and slot arrangement n. Apertures in the cylinders l, m can be brought into register in order to provide the air jets. The rotor casing e is mounted on a sleeve d and spider f, the sleeve d being rotatable on a spindle b disposed in the wall of an air duct.
Patent GB-1489506-A (GB)
Title: Sheet feeding apparatus
IPC: G03G15/04
Filed: 1975-04-21
Abstract: 1489506 Feeding sheets XEROX CORP 21 April 1975 [26 April 1974] 16466/75 Heading B8R [Also in Division G2] In an automatic xerographic copying machine 10 documents are fed to a platen 20 by apparatus 11 having driven rolls 72 loaded by leaf springs 82 for engaging the documents and set screws 91 engaging members 92 for minimizing the pressure of the rolls on the platen when no document is being fed, to prevent abrasion of the platen. The apparatus 11 is movable between its operative position shown full and a stored position shown in ghost outline by a lever (49), Fig. 2 (not shown), being manually rotated, the position chosen depending upon whether the machine is to be used with the document stationary on the platen 20 while it is scanned by a moving optical system 21 or with the document being moved by the apparatus 11 while the optical system 21 is locked in position. The apparatus 11 has the rolls 72 and rolls 70 interconnected by a timing belt (74), the rolls 70 co-operating with pinch rolls 78 for forwarding the document to the platen 20, and the shaft 71 of the rolls 70 has a gear (76) which is moved into mesh with a driving gear (77) when the apparatus 11 is moved to its operative position. The rolls 72 are carried by pivoted arms 80 and when a document is fed between the rolls and the platen the screws 91 are lifted out of engagement with the members 92 so that the leaf springs 82 load the rolls. The rolls 70, 72 may be carried by respective pivoted arms, Fig. 5 (not shown), and a feed belt (101) may extend round them. Copy sheets are fed from a cassette 15 by rollers 16 to an image transfer station D, and they are stripped from the drum P and are advanced by a moving vacuum transport 17 to a thermal fusing station F and a collecting tray 19.
Patent GB-387571-A (GB)
Title: Improvements in toilet roll holders
IPC: A47K10/38
Filed: 1932-06-11
Abstract: 387,571. Toilet-roll holders. BROOKES & ADAMS, Ltd. and BROOKES, A. E., 250, Barr Street, Hockley, Birming- ham. June 11, 1932, No. 16539. [Class 18.] A toilet-roll holder comprises two parts 1, 2 which are hinged together along one edge and are moulded from synthetic resin &c. with integral hinge lugs 4. The holder is provided with an outlet slot 14, and a member 5 on the part 1 below the hinging edge by means of which the holder is fixed to a surface. The roll is mounted on a spindle the ends of which seat in recesses 12 formed in the parts 1, 2. A ring may surround one or both of the bearings 12 to hold the parts 1, 2 together, or a hook &c. can be used for the same purpose. The lower edge of the slot 14 is formed with a lip which serves as a cutting edge. A lug 18 enables the part 2 to be raised. The attachment member 5 has a recess to take a projection on the part 1, and the screw which secures the member 5 to the holder also fixes the holder to the wall, although the member 5 may be permanently secured to the part 1 by rivets &c.
Patent GB-318666-A (GB)
Title: Improvements in electric traction for railways
IPC: B60M1/36
Filed: 1928-06-07
Abstract: 318,666. Rutnagur, S. M. June 7, 1928. Skate collectors; conductors for electricity; guards f o r conductors. - Skate collectors R carried by crossbars S, S<1> secured to bow frames or pantographs D are retained by guard wires C, C<1> projecting below the level of the short contacts P. The short contacts P are supported by arms B, and uprights A between or on each side cf the tracks, the feeder being overhead or underground. The collectors extend the length of each vehicle and are connected together by cham or wire joints. In a modification, a single guide wire is arranged between pairs of contacts engaged by pairs of collectors on the vehicles.
Patent GB-355812-A (GB)
Title: Improvements in or relating to internal combustion engines of the liquid fuel injection compression ignition type
IPC: F01L13/08
Filed: 1930-05-29
Abstract: 355,812. Starting oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London, and BERGIUS, W. M., 254, Dobbies' Loan, Glasgow. May 29, 1930, No. 16645. [Classes 7 (ii), 7 (iii), 7 (v), and 7 (vi).] A compressionignition engine is started as an explosion engine, by increasing the cylinder clearance, by holding open a common sealing valve D, normally used for inlet and exhaust through valves F<1>, G<1>, and admitting combustible mixture through the valve F<1>; a sparking - plug socket E<1> is provided. A valve lifter for the valve D comprises a plunger M which may be held in engagement with a lug H<3> on the valve rocker H by a pin passing through holes M<3>, M<4>. To reduce throttling effect, the inlet valve F<1> is timed to close after the sealing valve D. Throttle valves, in branched pipes leading, respectively, from a carburetter, and a supply of compressed air, are interconnected so that, when one is open, the other is closed. During normal working, liquid fuel is injected from a nozzle C<1> down a cylindrical combustion chamber C ; the air may be whirled round the cylinder axis by offsetting the inlet and exhaust ports F, G, with respect to the sealing valve D as shown in plan in Fig. 3.
Patent GB-1560158-A (GB)
Title: Apparatus for use with memory means
IPC: G06F12/02
Filed: 1977-06-21
Abstract: A memory array, having a plurality of intersecting rows and columns, stores digitized speech. Each row and column intersection consists of a binary storage cell for storing one bit of digitized speech. Incoming digitized speech is loaded into columns of the memory array in a plurality of repetitive loading sequences, each loading sequence including: reading out the bits stored in successive rows of binary storage cells, replacing in each successive row of bits, a predetermined one of the bits in the read out row with a successive one of the bits of the digitized speech and writing each read out row of bits including the replaced bit back into the row. Multibit binary grunts (digitized speech segments) stored in the array are read out therefrom by applying the bits of the grunts to time slots in frames on a time-division highway, each frame being of n bits duration and including one bit from each of n grunts stored in the array. A selected grunt is extracted from the highway by commencing a count of the bits on the highway with a first bit of the selected grunt and by extracting the first bit and every nth bit thereafter. Memory malfunction is indicated when the number of rows in the array containing parity errors exceeds a predetermined threshold number.
Patent GB-345886-A (GB)
Title: Improvements in and relating to railway rail joints
IPC: E01B11/10
Filed: 1930-05-31
Abstract: 345,886. Railway rail joints. WALTON, C., Box 51, Apple Springs, ATMAR, L. P., WALTON, T. P. and MITCHELL, J. W., Groveton, both in Texas, U.S.A. May 31, 1930, No. 16891. [Class 104 (ii).] A coupling for a rail joint comprises two chair plates 2, 3, each cut away at the ends to form stepped recesses 7 and projections 9 adapted to fit corresponding projections 12 and recesses 11 formed on the adjacent end of the other. The recess 7 at one end of each plate is above, that at the other end is below, the medial plane of the base.
Patent GB-425358-A (GB)
Title: Improvements in or relating to the combustion of liquid fuel
IPC: F23K5/22
Filed: 1933-06-13
Abstract: 425,358. Vapour burners. ELFVING, T. M., 21, Erik Dahlbergstatan, and WALLENBERG, V. H., 11, Blasieholmstorg, both in Stockhohn. June 13, 1933, No. 16907. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 16, 1933.] [Class 75 (i)] Liquid fuel is supplied by a pipe 25 and town gas or other permanent gas containing free hydrogen is supplied by a pipe 28 to a vaporizer 5 and the mixture of vapour and gas is conveyed by a pipe 6 to an adjustable nozzle 8 from which it passes to an annular burner head 2 surrounding the vaporizer. The pipes 28, 6 are formed as coils 29, 11 adjacent to the path of the flame from the burner head 2. The vaporizer 5 has a detachable cover 23 and contains a number of evaporating pans 17 supported by centrally apertured flanges 19 on the vaporizer. The fuel overflows from one pan to another and the heavier fractions collect in a space 27 at the bottom of the vaporizer from which they may be conveyed to a collecting chamber 31 or to the flame. The delivery end of the gas pipe 28 may dip below the fuel in the space 27, the gas flowing upwards and alternately sweeping over the oil pans and contacting with the intensely heated wall of the vaporizer. The lower portion of the vaporizer and the nozzle end of the pipe 6 may be covered with heat-insulating material 24, 12. The needle valve 13 regulating the discharge orifice of the nozzle 8 may be operated by a thermostat 14. Condensed fuel in the nozzle 8 and burner head 2 is drained away by pipes 16, 291. The proportion of gas and liquid fuel supplied to the vaporizer may be rendered constant by causing the gas to pass through a meter 32 operating a wheel 33 feeding liquid fuel from a constant-level supply tank 34 to a funnel 35 on the pipe 25. This proportion may be varied by opening a byepass 40 between the inlet and outlet pipes to the meter. At starting the byepass 40 is preferably opened fully. The amount of gas passing to the nozzle 8 will then diminish as vaporization of the fuel in the pans 17 increases.
Patent GB-877505-A (GB)
Title: Improvements relating to aircraft undercarriages
Inventor: WILLITT ARTHUR ADRIAN JOHN
IPC: B64C25/58
Filed: 1958-05-27
Abstract: 877,505. Aircraft undercarriages. DOWTY ROTOL Ltd. May 22, 1959 [May 27, 1958], No. 16907/58. Class 4. A main aircraft undercarriage component comprises two wheel mountings adapted for fixing to an aircraft in tandem one behind the other, one mounting being rigid and having a fixed axle carrying at least one yieldable wheel, and the other mounting being movable against the resistance of a shock absorber and having an axle carrying at least one yieldable wheel which, when the shock absorber is unloaded, lies below the wheel or wheels carried by the fixed axle, but which is movable under ground load from this lower position against shock absorber resistance to a level at which the wheel or wheels carried by the fixed axle also engages the ground. A pad 11 is attached to each lower corner of an aircraft fuselage (not shown) to enclose a tandem undercarriage each comprising a front bracket 16 socketted at 19 to a projection from a fuselage structural member and a rear bracket 17 similarly socketted at 21, the two brackets being connected by a beam 18. Bracket 16 carries a pivot 22 for a wheelsupporting arm 23 which.is locked in the downposition shown by a collapsible bracing strut 27, secured in its extended position by a lock 36 automatically freed by initial movement of a retraction jack 34. Bracket 17 carries a pivot 40 for a wheel-supporting arm 41 and a further pivot 51 for a bell-crank lever 49 which has an upper pivotal connection 52 for a retraction jack 54 and a lower pivotal connection for the body of a shock absorber 46, the piston rod of which is connected at 44 to arm 41. Reaction loads on the line of the shock absorber axis are taken by trunnions 57 which seat in a semi-circular recess 58 formed in bracket 17 and are retained therein by a pivoted latch 61 operatively connected with jack 54. With both undercarriages extended as shown the rear wheel 14 is below the front wheel 13 so that landing shocks are reacted by the rear wheel only, contraction of shock absorber 46 bringing wheel 14 into the chain dotted position 14<SP>11</SP> so that both wheels support the aircraft during ground running.