baber/WOPTO huggingface dataset:
Patent GB-492563-A (GB)
Title: Improvements in or relating to rate of climb indicating and/or recording instruments
IPC: G01L7/00
Filed: 1937-10-28
Abstract: 492,563. Measuring rate of change of pressure. ARCHBALD, R. H. Oct. 28, 1937, Nos. 29515 and 36271. [Class 106 (ii)] A rate-of-climb indicator for aircraft comprises a hermetically sealed casing in which is a pressure chamber constituted by a dished back plate having a diaphragm secured over its concavity, fluid pressure being admitted through an opening in the back plate, and the diaphragm or the back plate or both being formed with one or more bleedholes giving restricted fluid passage to the casing. The back plate 10 is secured to a nipple 17 connected to the usual Pitot tube. The diaphragm 11 in the form shown is provided with a bleedhole 32 drilled in a sapphire held by a collet. A front plate 12 limits the extent to which the diaphragm can move and is provided with pillars 13 supporting a mounting 75 carrying the usual instrument movement operated by a push rod 22 passing through an opening 23. The diaphragm may have several bleedholes and bleedholes may be formed in the back plate. A button 34 of magnetized steel is placed on the zero mark of the dial 21 and serves to clamp oscillations about the zero of the steel indicating needle or the steel whisker on a non-magnetic needle. The leak may be varied by means controlled by the pilot or automatically from the instrument movement. The diaphragm may be made of one material, say nickel or German silver, while front and back plates may be made for instance of brass to compensate for temperature variation. Specification 388,514 is referred to.
Patent GB-859589-A (GB)
Title: Improvements in or relating to method and apparatus for making cigarettes
IPC: A24C5/18
Filed: 1957-09-19
Abstract: 859,589. Feeding tobacco. AMERICAN MACHINE & FOUNDRY CO. Sept. 19, 1957 [Nov. 14, 1956], No. 29558/57. Class 130 A variable-speed fan 40, Fig. 1, delivers air at 24 in the direction of movement of a cigarette paper web or belt 20 so as to give a tobacco shower in a chute 10, Figs. 1 and 3, an identical sideways movement, the tobacco being gently deposited on the belt as the fan 40 draws the air off at reduced velocity through an expansion chamber 34, and the whole system being maintained at sub-atmospheric pressure by a controllable vent 44 to dust suction apparatus of the continuous-rod machine to which the tobacco passes under a, compression wheel 26. In a modification, a fan 62, Fig. 5, entrains tobacco from a separate shower 54 located at floor level adjacent the rod-former and delivers it to the belt 20, stems being caught in a trough 18 having an emptying screw 71. Specification 780,108 is referred to.
Patent GB-816700-A (GB)
Title: Improvements in or relating to telecommunications circuit arrangements for subscribers' stations having keyboard selection
IPC: H04M1/60
Filed: 1957-09-20
Abstract: 816,700. Automatic exchange systems. SIEMENS & HALSKE A.G. Sept. 20, 1957 [Sept. 28, 1956], No. 29708/57. Class 40 (4). In a subset a transistor forms part of an oscillator which generates a different frequency for each digit key depressed and under control of change-over contacts also serves as a speech amplifier. When the subscriber takes down his receiver closure of the cradle switch contacts 1hu, 2hu connects the transmitter M and receiver H to the line in the normal manner. Depression of a digit key (not shown) closes the corresponding one of contacts t1 ... t0 and changes over contacts 4t, 5t, thus disconnecting the transmitter M and receiver H and substituting the oscillator including transistor Tr, the operated contact of t1 ... t10 switching different valves of Ls3, or Ks, or both, into the tank circuit to determine the frequency to be generated. When the connection has been established the subscriber operates the changeover switch which changes over contacts 6u ... 15u. The transistor circuit is thus rearranged as an amplifier for incoming signals, the secondary winding of the transformer G1, G2, G3 being connected to its input side and the secondary L4 of the transformer Ls2, Ls3, L4 being connected to the receiver H. The change-over contacts may consist of protective tube contacts, that is of inner contact springs and outer contact springs enclosed in a sealed glass tube, the springs carrying magnetic flux by means of which the contacts are operated under the control of an external currentcarrying coil or of a permanent magnet, each contact forming in effect an armature.
Patent GB-1463598-A (GB)
Title: Process for removing pest control substances from vegetable solids which are to be used for foodstuffs
IPC: A23L11/00
Filed: 1974-07-04
Abstract: 1463598 Treating vegetable material ESCHER WYSS Ltd 4 July 1974 [5 July 1973] 29777/74 Heading A2Q In a process for removing pest-control substances in vegetable solids, e.g. grain, bran, ground nut shells, the substance travels in a horizontal fluidised bed and steam is passed vertically through to evaporate the pest control substance. In a suitable apparatus the solid treated enters at 5 and leaves at 7. The fluidized bed is in two parts 11 and 12. Part 11 is fed with air from conduit 17 and steam from conduit 18, via blower 19 and heater 20. The exhaust gases pass through dust extractor 21, which discharges into chute 5 and extractor fan 23. Part 12 is fed with steam from conduit 28 via dust extractor 24, which discharges in chute 7, blower 26 and heater 27. The exhaust steam is recycled.
Patent GB-813490-A (GB)
Title: Production of tertiary acetylenic alcohols
Inventor: LACEY RICHARD NORMAN
Filed: 1956-09-29
Abstract: Tertiary acetylenic alcohols are produced by reacting acetylene with a ketone under substantially anhydrous conditions and in the presence of an alkali metal alkoxyethoxide of formula ROCH2CH2OM in solution in an alkoxyethanol of formula ROCH2CH2OH, where R in each case represents an alkyl group of one to six carbon atoms, to form the alkali metal derivative of a tertiary acetylenic alcohol, and recovering the alcohol from its alkali metal derivative.  Preferably the alkali metal alkoxyethoxide is in solution in the corresponding alkoxyethanol, in which case the solution may be prepared by adding aqueous alkali metal hydroxide to an excess of alkoxyethanol at a subatmospheric pressure, maintaining the mixture at boiling point, and removing water by distillation with a hydrocarbon entraining agent, such as benzene or toluene.  A preferred condensing agent is potassium n-butoxyethoxide in n-butoxyethanol.  Suitable ketones for carrying out the process are acetone, methyl ethyl ketone, methyl propyl ketone, diethyl ketone, methyl amyl ketone, di-isopropyl ketone, cyclohexanone, and methylheptenone.  The molar ratio of ketone to alkoxyethoxide is suitably from 0.30: 1 to 0.95: 1, preferably about 0.75: 1. The condensation may be carried out at below 60 DEG  C., preferably 0-30 DEG  C.  The pressure may be atmospheric or superatmospheric. The tertiary acetylenic alcohol may be liberated from its alkali metal derivative by (i) adding water, extracting with a solvent at a comparatively low temperature, and recovering the free alcohol from the solvent; (ii) hydrolysis, treating with CO2, removing alkali metal carbonate, and solvent extraction; (iii) adding water, removing or neutralizing alkali metal hydroxide, and distilling; (iv) washing the crude product with water, converting the alkali metal derivative to free alcohol, neutralizing alkali metal hydroxide and distilling; (v) (where acetone or methyl ethyl ketone is used) distilling the crude reaction product, after adding water, at not above 60 DEG  C. under reduced pressure, e.g. 100-150 mm., to obtain the free alcohol. In Examples (1) and (2) acetone is reacted with acetylene to produce 2-methyl-but-3-yn-2-ol; (3), (4), (5) and (8) methyl ethyl ketone produces 3-methyl-pent-1-yn-3-ol; (6) and (7) 6-methylhept-5-ene-2-one produces dehydrolinalol (all using potassium n-butoxyethoxide in n-butoxyethanol); and methyl ethyl ketone produces 3-methyl-pent-1-yn-3-ol, using (a) potassium n-propoxyethoxide in n-propoxyethanol; and (10) sodium n-butoxyethoxide in n-butoxyethanol.
Patent GB-875679-A (GB)
Title: Improvements in and relating to gas cooled graphite moderated nuclear reactors
Inventor: MOORE DEREK
IPC: G21C15/02
Filed: 1958-09-18
Abstract: 875,679. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. Sept. 14, 1959 [Sept. 18, 1958], No. 29857/58. Class 39(4). In a gas cooled graphite moderated nuclear reactor 1, a flow of gas of a temperature higher than that of the bottom portion of the moderator core 2 is led through ducts 14 so that the operating temperature of the lower portion is raised and a more even distribution of temperature throughout the core is attained. The ducts 14 may be existing flattening- or control-rod ducts. As shown, coolant gas which has passed upwardly through ducts 12 is sucked down through the ducts 14 and via pipe 16 to join the main gas stream between the heat exchanger 4 and the blower 6, after cooling if desired. Cold coolant gas or a neutron absorbing material may be introduced through pipe 19. Alternatively, externally heated gas or gas from the fuel channels may be passed through the ducts 14. Specification 875,678 is referred to.
Patent GB-285995-A (GB)
Title: Improved process for joining together metal surfaces
IPC: B23K1/00
Filed: 1926-11-25
Abstract: 285,995. Smith, W. Nov. 25, 1926. Casting processes. - In casting molten metal upon a piece of the same or a dissimilar metal or between two pieces of metal to join them, the solid metal is first amalgamated at the surface to be joined or an amalgamated strip of the same or of a dissimilar metal is placed adjacent such surface. This method is suitable for lead, copper and aluminium. Iron and steel may be galvanized before amalgamating and castings to receive bearing metal may be similarly treated.
Patent GB-1348850-A (GB)
Title: Polymer grafting
IPC: C09C1/56
Filed: 1971-06-25
Abstract: 1348850 Modified carbon black AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 25 June 1971 [26 June 1970] 29944/71 Heading C1A [Also in Division C3] Polymeric materials are grafted on to carbon black by mixing the black with a polymer, degassing the mixture of carbon black and polymer, introducing to the mixture a solvent for the polymer and forming a solution thereof, stirring and heating the mixture in the solvent until by a free radical mechanism polymer grafts are attached to the carbon black. The black used may be furnace black, thermal black, or channel black. The polymer used may be a graft copolymer, a block copolymer, a block homopolymer, or a polymer mixture. Preferably, a polymer having hydrogen on a tertiary carbon atom is used. Polystyrene, polyvinylacetate, polypropylene, polymethylmethacrylate, an acrylonitrile-styrene copolymer, polyvinyl chloride or a propylene based copolymer are given as suitable polymers. The solvent may be introduced into the mixture by condensing it from the vapour state on to the mixture. The solvent used may be an aromatic hydrocarbon, an ether, or in a preferred embodiment, the monomeric form of the polymer is used. Styrene, acrylonitrile, a mixture of the last two, and vinyl acetate are given as suitable materials. The mixture may be degassed at ambient temperature by the application of subatmospheric pressure, and the solvent may be distilled and condensed at this same pressure to form the desired solution containing carbon black, which is heated with stirring to at least 50‹ C. to produce the desired product. The product may be separated from the unused polymer by filtration or by centrifuge. Times, temperatures and pressures suitable for the process are given and claimed. The blacks produced are easily dispersed and find use in paints, varnishes and printing inks, and are improved as pigments, ultraviolet filters, fillers and antioxidants. The amount of polymer on the black varies between 1À2% and 11À5% by weight.
Patent GB-300782-A (GB)
Title: Improvements in or relating to means for controlling aircraft
IPC: B64C9/22
Filed: 1927-11-09
Abstract: 300,782. Deane, G. N. Nov. 9, 1927. Balancing.-Relates to aircraft wings provided with forwardly mounted rider planes or allulas which move automatically to form gaps between themselves and the wings before the stalling angle is reached ond consists in operable or adjustable means for determining the attitude of the aircraft at which the gaps tend automatically to open or close. The may be effected to placing a yielding load upon the allulas tending to keep the gaps closed, or, by mounting the allulas so that their pivoting points or normal positions on the wings may be varied. The load may be such as to render the allulas inoperative. As shown in Fig. 1, the allula 3 is mounted on the wing 1 by parallel links 4, the rear link having an arm 6 connected to a spring 8 connected by a cable 9 to the usual pilot's control column or an independent control. Semi-permanent adjustable means 7 may be provided, or the yielding load applied by the spring may be invariable. The cable 9 may be connected to an aileron on the same wing or its control mechanism, or may be cross connected to an aileron on the other wing, lost motion devices being interposed in the connection so that the yielding load is not varied until the aileron has moved a predetermined amount. Quickly releasable means may be provided to lock the allulas in any desired position. In the arrangement shown in Fig. 4, the parallel links are mounted on a member 12 movable in a guide 13 on the wing, the guide being connected by a rod 16 to a lever 15 controlled by cables 9<a>. In a modification movement of the allulas may be controlled by air cushions or dash-pots. In a further modification, the pivotal points of the links on the plane may be adjusted along arcuate slots struck about centres coinciding with the pivot points of the links on the allulas. In the arrangement shown in Fig. 6, the yielding load comprises a torsion spring 26 connected to one of the links 4 and to a screw-threaded rod 21 rotated by a travelling nut 23 connected by a spring 33 to a fixed point 34 and by a cable 29 to a control lever 28 which is similarly connected to an allula on the other wing. By movement of the lever in the direction a or b, the load on one allula is decreased and on the other increased, and by movement in the direction c, both cables engage pulleys 35 and the load on both allulas is increased.
Patent GB-842180-A (GB)
Title: Improvements in distance counters for vehicles
IPC: G01C22/02
Filed: 1957-09-25
Abstract: 842,180. Vehicle route error compensators. GOODHEAD, R. A. Sept. 25, 1958 [Sept. 25, 1957], No. 30097/57. Class 106 (3). When an error is discovered in the route of a vehicle, contacts 2 and 3, usually closed so that impulses from the speedometer cable P are counted by odometer D, are opened, and contacts 1 and 2 closed, by a manually-operated switch K. The impulses are then fed to forward impulse mechanism 10 of an electromagnetic impulse motor M, contacts Z being opened as soon as the motor moves from its zero position. The first impulse after switch K is thrown energizes relay R 1 , which then opens contacts 7, 8 and 5, 6 and closes contacts 8, 9 and 4, 5, the relay R 1  being then continuously energized by a source 12 of D.C. potential. When the correct course is rejoined, switch K is returned to its normal position. The impulses are then fed to impulse mechanism 11, which turns motor M in the opposite direction until it reaches its zero position, when contacts Z are closed, relay R, energized and contacts X closed, so that relay R 1  is short-circuited and the contacts 7, 8, 9 and 4, 5, 6 return to their initial positions. The odometer D then recommences to count the impulses. Specification 816,176 is referred to.
Patent GB-285190-A (GB)
Title: Improvements in or relating to control mechanisms peculiar to aircraft
IPC: B64C13/30
Filed: 1926-11-30
Abstract: 285,190. Parnall, G. G., and Bolas, H. Nov. 30, 1926. Steering and balancing.-Control mechanism for operating devices situated on a removable or foldable part of aircraft is divided into sections which co-operate when the aircraft is assembled and are automatically disconnected when the part is removed or folded. As shown, the control rod 19 or wire mounted on a fuselage terminates in a lever 14 adapted to cooperate with a lever 6 m:ounted on a wing 10, the lever 6 having aileron control rods 5 or wires. The lever 6 is adjustable on an eccentric bush 8<a> and apertured plate 12<a> and is provided with cams 11 which may be designed to give differential movement. The control mechanism is adaptable to disconnectable tail units.
Patent GB-1430005-A (GB)
Title: Electron beam control
IPC: H01J29/64
Filed: 1973-06-26
Abstract: 1430005 Discharge tubes NATIONAL AERONAUTICS & SPACE ADMINISTRATION 26 June 1973 [27 June 1972] 30296/73 Heading H1D The efficiency of collection of a spent electron beam in a microwave tube is increased by first radially expanding the beam from its value in the interaction region 10 of the tube, to decrease its current density e.g. to a value not exceeding 10 amps. cm.<SP>-2</SP>, by provision of a region 11 of smoothly decreasing magnetic field, and then maintaining the beam at a substantially constant diameter by a region 12 of uniform magnetic field of reduced intensity, and finally collecting the beam, in a region 19 of zero magnetic field, on a sequence of plates 34 to 37 of progressively more negative potential. The distance L over which beam expansion occurs should be in the range one to three cyclotron wavelengths in terms of the region 10 field, and the distance L 2  over which the beam radius is maintained constant should be a half to one cyclotron wavelengths, in terms of the region 12 field. The field in region 12 may be “ to <SP>1</SP>/ 10 th the value in region 10. The fields may be produced by solenoids, as shown, or by permanent magnets, or a periodic permanent magnet system. Reference is made to the possibility of using a single magnet with polepieces 25, 28, and 29 to produce the required field variation.
Patent GB-618286-A (GB)
Title: Improvements in closing sleeves for hoop iron bands
IPC: B65D63/06
Filed: 1946-10-10
Abstract: 618,286. Hoops for casks. FROMM GES., A. Oct. 10, 1946, No. 30337. Convention date, Oct. 10, 1945. [Class 21] [Also in Group XV] A closing sleeve for hoop iron bands comprising a part I having inturned legs 3, 4 gripping under the hoop (see Group XV), is pushed onto the hoop and located in the casing of a special closing and tensioning device, such as that described in Specification 616,989, [Group XV], by means of lugs 6. The lugs are cut off with the overlapping parts of the hoop, and the closure is secured by side cuts 10.
Patent GB-428062-A (GB)
Title: Improvements in or relating to methods of and apparatus for obtaining duplicate records in machines printing items on sheets of paper
IPC: B41J11/36
Filed: 1933-11-01
Abstract: 428,062. Typewriters &c. CAMPOS, F., 4, Rue Dufrenoy, Paris. Nov. 1, 1933, No. 30351. Drawings to Specification. [Class 100 (iv)] Paper feeding and guiding arrangements; inkribbon mechanism.-A method of obtaining duplicate records consists in folding a sheet of paper to form a double sheet whereof the portion which lies uppermost during feeding is longer than the lowermost portion, feeding the double sheet into a printing-mechanism including an ink ribbon, separating the leading edges of the two portions of the folded sheet before they reach the ribbon so that one portion passes over the ribbon and the other portion thereunder, effecting a printing operation whereby the same printed impression is produced on both portions of the sheet simultaneously, and feeding the sheet out of the printing-mechanism in the reverse direction. The mechanism described for carrying this method into operation is identical with that described in Specification 428,061. Specification 377,957 also is referred to.
Patent GB-943893-A (GB)
Title: Operating and indexing mechanism for an intermittently rotatable worktable
IPC: C03B11/02
Filed: 1958-09-24
Abstract: <PICT:0943893/C1/1> The work-table of a glass moulding mchine is intermittently rotated between indexing positions by oil hydraulic means operating on the table through a helical spring clutch.  The Figure shows one embodiment in horizontal cross-section taken below the actual table. The table runs on a ring of balls on a fixed support carried in frame members 4 and is secured to a sleeve 2 carried on bearings on a fixed vertical spindle 3. The table is rotated by an hydraulic cylinder 12 with a ram 11 pivoted at 10 to an arm 7 integral with a collar 8 rotatable about the sleeve 2.  The one-way clutch is a helical spring having one end attached to the collar 8 and the majority of its length wrapped round the sleeve 2 so as to tighten thereon and provide a drive in the operative direction. When the required indexing position is reached a spring-loaded plunger 18 moves up into one of a number of holes 14 in the table. During the return stroke of the ram a cam 15 on the collar 8 actuates a pivoted arm 17 to withdraw the pin. To prevent any reverse movement of the table, its under surface is engaged by an eccentric disc to spring loaded into contact with the table by a spring-loaded plunger bearing on a flattened portion of the disc periphery.  An additional positive locking device operated by an hydraulic cylinder may also be provided.  The hydraulic reversing valve 30 has two arms 31, 32 engageable by pins 33b, 34b on spring-loaded pivoted extensions of arms 33, 34 secured to the collar 8.  The pins can thus slip past the arms 31, 32 in one direction of movement but, in the other, actuate them to reverse the movement of the ram.  The valve 30 controls the supply of oil to the ram of a timing mechanism such as described in Specification 943,894 which in turn controls the supply of oil to the cylinder 12.
Patent GB-1197909-A (GB)
Title: Power Operated Wheel Chair
Inventor: RABJOHN RODNEY R
IPC: A61G5/04
Filed: 1967-07-03
Abstract: 1,197,909. Power operated wheel chair. R. R. RABJOHN. 3 July, 1967, No. 30488/67. Heading B7H. A power-operated wheel chair comprises a conventional wheel chair having a front wheel replaced by a motor drive and control assembly 20, the lower part of the assembly 20 consisting of a housing 22 formed with a cylinder 32 which contains a motor 44 driven by a battery 14, and a traction wheel 42 is rotatable on the outer surface of cylinder 32 and driven by the motor via pulleys 70, 72 with a belt 74 and sprockets 40, 56 with chain 58, the pulley 70 and sprocket 56 being mounted on a shaft 54. The housing is rigid with a shaft 86 which passes up through a tube 152 by which the assembly is fixed to the chair by clamp 18. The shaft 86 is axially movable within tube 152 against a spring 146 but is axially rotatable by means of a handle 204 to steer the chair. A resistor in the form of carbon discs is mounted within a bore in housing 22 and the current to motor 44 is varied by compressing the discs. Lever 172 associated with handle 204 is connected by a cable passing through shaft 86 with a spring lever on which the carbon discs are mounted. Movement of lever 172 in direction F causes the discs to be compressed together thereby increasing the current to motor 44. After a preselected movement of lever 172 the resistor is shorted and the motor receives full power.
Patent GB-1374218-A (GB)
Title: Package
IPC: B65D75/60
Filed: 1973-06-27
Abstract: 1374218 Packages JINTAN TERUMO CO Ltd 27 June 1973 [30 June 1972] 30489/73 Heading B8C A package for surgical instruments consists of a covering 5 with a thermoplastics coating 6 to which is peripherally bonded the perforated thermo-setting coating 2 on a mounting paper 1, coating 6 thereby bonding only to paper 1 through perforations 3 so that covering 5 and paper 1 may be easily peeled apart. The outer surface of paper 1 is coated with a moistureproof sterilizing gas permeable film 9. Coating 2 may be an epoxy-resin or unsaturated polyester, and may be applied by an offset printing technique using a coated drum, or by a screen printing method.