baber/WOPTO huggingface dataset:
Patent GB-737165-A (GB)
Title: Apparatus for threshing and winnowing tobacco leaves
Inventor: EISSMANN OSWALD ERICH
IPC: A24B5/10
Filed: 1951-06-18
Abstract: 737,165. Separating solid materials; centrifugal separators. AMERICAN MACHINE DEVELOPMENT CORPORATION. June 18, 1951, No. 14422/51. Addition to 722,183. Classes 23 and 117. [Also in Group VI] Tobacco passing from a ripper 24 enters an air stream moving upwards with such a velocity that clean stems fall through an opening 40 whilst stems with attached blade portions are carried upwardly towards a deflecting wall 44 which returns them to the ripper 24 for retreatment therein, blade portions without stems being carried by the air stream up a passage 54 into a separating chamber 58. In one form, the ripper comprises a revolving drum 26 having combs 24 coacting with rakes 28, 42, 48 and with a concave 30 having circumferential zig-zag slots through which the tobacco is forced either directly into the air stream or onto a moving belt 32 delivering it thereto. The tobacco is delivered to the ripper by hand or conveyer through a rotary gate valve 18 whose compartment walls 16 have flexible seals 17 which, with a flexible seal 52 acting on the belt 32, prevent undesired air entry. In another form, Fig. 4 (not shown), the concave 30 and rakes 28, 42 are replaced by a concave grid which curves in towards the drum surface spirally in the direction of motion so that as the drum rotates, the drum combs pass into the grid spaces and between diamond-shaped cutting members so spaced along the grid teeth that those on one tooth alternate circumferentially with those on the next. In the separating chamber 58, the blade portions fall and are discharged through a gate valve 60 similar to the valve 18, settled-out sand filters through a perforated wall 66 into a receptacle 70, and the air passes through a screen 72 which retains lint, string and feathers. The air then passes through an external conduit 78 on each side of the apparatus to a chamber 80, and thence via cyclone separators 82 to openings 102 leading by a duct 104 on each side of the apparatus to the suction entries of a blower 105 producing the air stream, dust from the separators 82 being discharged to a receptacle 92. The rate of air flow through the apparatus for any given tobacco type or humidity is determined conjointly by valves 106 in the ducts 104 and by a valve 108 manually adjustable through a worm drive to allow controlled leakage from the atmosphere into the chamber 80 at a rate which ensures a supply of air to the separators 82 sufficient to render them self-cleaning. An adjustable gate 57 allows additional air to enter the passage 54 in greater quantity at the centre thereof than at the sides. The valves 106 may be dispensed with if the blower 105 has a variable speed drive. Specification 737,223, [Group VI], is referred to.
Patent GB-185477-A (GB)
Title: Process of producing cellular material
IPC: C08L21/00
Filed: 1921-05-25
Abstract: 185,477. Fulton, K. H. May 25, 1921. Drawings to Specification. Spongy india-rubber.-Cellular india-rubber is produced by mixing finely-divided charcoal with rubber, vulcanizing-agents, &c. subjecting the mix to an inert gas, such as nitrogen, under pressure whereby the gas is occluded in the charcoal, vulcanizing, and allowing to cool while still under pressure, removing the pressure, and reheating. Suitable proportions are 3-5 per cent of charcoal and 5-15 per cent of sulphur, antimony sulphide &c. according to the hardness required. When making hard rubber, the material is only partly vulcanized at the first stage, i.e. before the pressure is released, and the vulcanization is completed at the second heating. To assist the permeation of the mass by the gas in articles of considerable thickness, fibrous filaments are added to the mixing. Soft articles are preferably made from a mixture of Para rubber and balata. The material is applicable to heat &c. insulation, upholstery, tyre-fillings, &c.
Patent GB-234299-A (GB)
Title: Improvements in oil pumps
IPC: F16N13/10
Filed: 1924-06-16
Abstract: 234,299. Douglas Motors, Ltd., and Bailey, S. L. June 16, 1924. Oscillating-cylinder pumps.-An oil pump comprises two plungers 4, 5 reciprocated by a common crank 3 in oscillating cylinders 7 formed in discs which are mounted in circular recesses in a casing 9. As the discs oscillate, the ends of the cylinders communicate alternately with the inlet and delivery passages 10, 11. The plungers are connected to the crank by offset eyes.
Patent GB-1044440-A (GB)
Title: Method and apparatus for stroboscopic printing
IPC: G03B27/22
Filed: 1965-04-06
Abstract: 1,044,440. Photographic type-composing machines. HUGHES AIRCRAFT CO. April 6, 1965 [May 11, 1964], No. 14542/65. Heading B6W. [Also in Division G2] The film 20, Figs. 1 and 2, is fed intermittently linewise, when a roller 54 presses it into contact with a drive roller 56, between a convex guide member 78 and a rotatable drum 26 carrying an opaque mask 25, Figs. 1 and 8, having transparent areas representing symbols to be selectively printed arranged in laterally spaced columns 106, alternate columns being arranged in alignment with opposite halves of the drum circumference, and also transparent areas 138 each slightly staggered with respect to the corresponding line of symbols, and one area 136 defining the starting point of the drum rotation. The areas 138, 136 are arranged in the positions 58, 60 of Fig. 1. Light from a source 60 passing through the areas 138, 136 is sensed by pick-up devices 62, 64. Each column 106 is aligned with a stroboscopicallyoperated flash tube 28, and in the form described each pair of laterally adjacent columns share one of the three flash tubes 28a, 28b, 28c, which are mounted as shown in Figs. 2-7 in alignment with windows 100. During the printing of a line, the drum makes a complete revolution, and as each line of symbols (e.g. the numerals " 7 " in the three columns occupying one half of the drum surface) arrive at the print position 24, then if any of those symbols is required to be printed in that line at the position in the line in alignment with it, the corresponding flash tube or tubes is or are actuated. The tubes are actuated by drive circuitry 50 (231-233 in Fig. 9a), under the control of input information from a source 140 (e.g. a coded tape) and of control logic circuitry 36 shown in detail in Fig. 9b). The connections from the source 140 and the circuitry 36 through the various circuits shown in block form in Fig. 1, as 38, 40, 42, 44, 46, 48 are shown in detail in Figs. 9a and 9b. The film is fed one line in response to an end-of-line signal. After passing the print position, the film moves to a developing station 30 where it is developed by exposure to light from a source 32, the unexposed regions being desensitized by high temperature, using a heater 34. If it is desired to develop a printed line immediately, a switch can be operated to feed the film rapidly while preventing further printing. If it is desired to observe what is printed, the guide member 78 is replaced by a transparent guide element 500, Fig. 12, having a mirror 506 which reflects the image on to a surface 508, where it is retained for observation in response to an " observe " command signal. Alternatively, the film may be fed continuously in which case the spacing between the lines and the areas 138 must be varied progressively to compensate. If the mask pattern is in the form of closely spaced dots, half-tone reproductions of pictorial representations can be obtained.
Patent GB-374236-A (GB)
Title: Improvements in clutch throw-out bearing
IPC: F16D23/14
Filed: 1931-05-16
Abstract: 374,236. Thrust-bearings. GENERAL MOTORS CORPORATION, Detroit, Michigan, U.S.A. May 16, 1931, No. 14556. Convention date, March 30. [Classes 12 (i) and 12 (ii).] A clutch throw-out bearing comprises a graphite bearing block 33 carried in an annular collar 35 which is shrunk on the bearing 33. The collar 35 has trunnions 37 engaged by the forks 39 of a clutch release lever 41. An annular lubricant groove 45 formed in the collar 35, or bearing 33, communicates with a bore 47 in the upper trunnion 37 and with a hole 53 leading to an oil cup 55. The hole 47 and a hole 49 in the lower trunnion receive springs 51 which hold the forks 39 resiliently against the trunnions. The hole 47 also serves as in air vent for the lubricant passages.
Patent GB-686331-A (GB)
Title: An improved arrangement of the grinding rolls in roller mills
IPC: B02C4/38
Filed: 1950-06-12
Abstract: 686,331. Roller mills. MIAG VERTRIEBSGES. June 12, 1950 [June 13, 1949], No. 14570/50. Class 59 A roller mill arrangement including a fixed roll, and a loose roll adjustable relative thereto, is characterized in that the loose roll is movably but inflexibly supported in such a way that it can turn round an axis disposed at right angles to the roll axis, and is adjustable by hand or automatically. An adjustable roller 2 is mounted in bearings 3 and carried by levers 4 hinged at one end 4<SP>1</SP> and linked at the other end by links 5 to arms projecting from a shaft 6. This shaft is journalled in bearings 8, 9 in a member 7 and is adjustable about its axis by hand-wheel means 17 to effect parallel adjustment of the roll 2 relative to a co-operating fixed roll 1. The member 7 is journalled in fixed bearings 14, 15 so arranged that the axis of rotation of the member 7 intersects that of the member 6 at a small angle at their centre points. Movement of the member 7 about its axis thus causes an eccentric movement of the shaft 6 whereby the links 5 cause the grinding clearance at one side of the rolls to be increased and at the other side to be reduced. This movement of the member 7 may be effected by hand-wheel. means, Fig. 1 (not shown), similar to the means 17 or the movement of the roll 2 may occur automatically and control the feed of material to the roller, the member 7 carrying oppositely directed levers 26 adapted to actuate rods 27 connected to a flap valve 24 controlling the feed of material so that a reduction of the grinding clearance at one side of the rolls causes an opening of the feed flap valve on the same side thereof, and vice versa.
Patent GB-850928-A (GB)
Title: Improvements in or relating to an apparatus and method for conditioning liquids
IPC: F27B5/04
Filed: 1957-05-08
Abstract: 850,928. Refining metals, groducing alloys, vacuum degassing crucibles. FESSLER, F. May 8, 1957, No. 14659/57. Classes 72 and 82(1) [Also in Groups VI and XXIII] Apparatus for treating liquids comprises a rotatable vessel with an outer wall diverging outwardly and downwardly spaced from an inner wall of an enclosing chamber, and means for depositing on the rotating vessel quantities of liquid to be treated in an amount insufficient to fill the chamber but sufficient to be rebounded between the walls. As shown, vessel 29 is rotated by motor 21 and supplied with a liquid such as molten metal, molten glass from reservoir 16 through inlet 17. The inside walls 35 of the chamber may be heated by tubes 20 while pipe 13 is used to supply treatment gases such as hydrogen or inert gas, and pipe 18 to evacuate the chamber when working under reduced pressure. The liquid in depression 33 is caused to rise up wall 34 by centrifugal force and to fly into contact with wall 35. Droplets falling on to wall 32 .are flung back on to wall 35 repeatedly and the liquid, atomized thereby, accumulates in pit 30 and flows out outlet 31. By suitably controlling operating conditions, the apparatus may be used to produce castings of controlled porosity, to mix otherwise immisicble metals, or metals with non metals, and to produce steel ingots free from piping. Examples of alloys made in this apparatus are aluminium base alloys with cadmium and bismuth-containing stainless steel.
Patent GB-479580-A (GB)
Title: Automatic timing of the ignition in internal combustion engines
IPC: F02P5/10
Filed: 1937-05-27
Abstract: 479,580. Timing ignition. BOHLI, J. May 27, 1937, No. 14706. Convention date. May 27, 1936. [Class 7 (iv)] Exhaust-pressure controls the time of ignition by acting from the manifold 1 through a filter 4 and chamber 6 on a pressure-responsive member 8 connected to the interrupter 14, 15. Connections 9, 12 controlled by a throttle 10 may also lead from either side of the member 8 to the engine intake 11. Restricted orifices 12a, 9a, 5a open into the chambers 6, 7. According to the Specification as open to inspection under Sect. 91, a servomotor may be interposed between the member 8 and the interrupter. This subject-matter does not appear in the Specification as accepted.
Patent GB-516111-A (GB)
Title: Improvements in electron discharge tubes
IPC: H01J19/02
Filed: 1938-05-17
Abstract: 516,111. Thermionic valves. HYGRADE SYLVANIA CORPORATION. May 17. 1938, No. 14722. Convention date, Feb. 8, 1938. [A Specification was laid open to inspection under Section 91 of the Acts, Nov. 29, 1938.] [Class 39 (i)] In thermionic valves of the screened-grid type, the envelope 31, Fig. 5, is closed by a glass header 32, through which all the lead-ins to the electrodes are sealed, and a conductive shield 80 is provided on the interior face of the header and is surrounded by the lead-ins whereby the control grid lead-in is electrostatically shielded from one or more of the others. The lead-ins 35 are adapted to act as contact pins and are sealed through the header as described in Specification 516,110. The electrode system described consists of an indirectly heated cathode, control grid, screen grid, suppressor grid and anode mounted between mica discs. The mount is shielded by a metal cylinder 66, with closed ends and the shield is continued outside the envelope by a metal cap 70, the edge of which overlaps the lower end of the cylinder 66. The cap is apertured for the passage of the contact pins and carries a central tubular extension 75 with a locating rib adapted to co-operate with a grounded socket. The disc 80 is connected to the shielding cylinder 66 by arms 93, 94, Fig. 8, and also carries a shield 83 for the control grid lead-in. A mica bridge 90 is supported by the contact pins and carries metal straps and tabs 103, 104 by which the ends of the cathode heating filament may be soldered to its contact pins. Specification 516,167 is referred to.
Patent GB-1246971-A (GB)
Title: Improvements in or relating to tamper proof closures
Inventor: MISKIN BRIAN LESLIE
IPC: B65D41/48
Filed: 1967-10-17
Abstract: 1,246,971. Tamper-proof closures. JOHNSEN & JORGENSEN (TRIDENT) Ltd. 14 Nov., 1968 [17 Oct., 1967; 27 March, 1968], Nos. 47251/67 and 14760/68. Heading B8T. A tamper-proof container and closure consists of a seam-free container 4 having an annular projection 7 and a preferably plastics closure 1 comprising a cap portion 2 and a detachable band 3. A tab 10 connected to the band 3 is provided in an opening 9. A line of weakening 8 extends around the closure and is engaged by the projection 7 to retain the closure, whilst a second line of weakening 11 extends only part way around before turning downwards to the lower edge of the band, Fig. 4 (not shown). After initial removal, the cap portion can be used to reseal the container since sealing is by bead 14 co-operating with surface 5. In a modification the lower part of the closure may slope inwards. The container is manufactured either from a thermoplastics material by injection moulding in a two-piece mould, or from a metal, e.g. aluminium, by a simple stamping operation.
Patent GB-1385213-A (GB)
Title: Method of manufacturing carbon fibre
IPC: D01F9/28
Filed: 1972-03-29
Abstract: 1385213 Carbon fibres DEFENCE SECRETARY OF STATE FOR 29 March 1972 14761/72 Heading C1A Carbon fibres are prepared from fibres of a graphitizable polymer (as denned) by first subjecting the fibres to surface oxidation to render a surface layer non-graphitizable (as defined), and then heating the fibres to a temperature above 1800‹ C., thus driving off the greater part of constituents other than carbon and rendering the inner part graphitizable in lamellar form. The first step may be carried out in an oxidizing atmosphere at about 300‹ C. for between 1 and 20 minutes, preferably in a fluidized bed. It is preferred to heat the fibres to an intermediate temperature, e.g. 1000‹ C. between the first and second steps. The starting fibres may be of polyacrylonitrile, polyvinyl alcohol, polyvinyl chloride, polyvinyl chloride petroleum pitches or polyamides.
Patent GB-564955-A (GB)
Title: Improvements in or relating to undercoat compositions for metal parts
IPC: B05D5/06
Filed: 1941-07-02
Abstract: An undercoating for metal surfaces comprises a resinous metal adherent binder and a deflocculated pigment together with solvents therefor, the volume ratio of pigment to binder being between about 1 : 3 and 1 : 1 and the pigment and binder being ground together until the pigment is in a state of "enamel fineness," i.e. in a fully wetted deflocculated condition.  There are specified as (1) binders-an oil modified alkyd resin obtained by reacting glycerol, phthalic anhydride, soya bean oil acid, castor oil acid, dehydrated castor and soya bean oils; chinawood oil varnish made by heating chinawood oil and rosin and adding naphtha as solvent; congo resin-perilla oil varnish, wood oil congo rosin varnish; linseed perilla-chinawood oil varnish; chlorinated rubber plasticised with chlorinated diphenyl resin; (2) pigments-venetian red (iron ore pigment) zinc chromate, titanium dioxide, carbon black, "orange mineral" red lead, burnt umber, burnt sienna; (3) solvents-high-flash naphtha (b.p. 150-200 DEG  C.), terpene "B" (pineoil produced in manufacture of camphor and containing terpinene, terpinolene, and di-pentine. In examples: (1) a paste of venetian red, zinc chromate, 50 per cent solution of oil modified alkyd resin in naphtha, and high-flash naphtha is ground in a steel ball mill until fully deflocculated and wetted and is then thinned down by additional solvent; (3) venetian red, zinc chromate, chinawood oil rosin varnish, congo perilla varnish, chinawood oil congo resin varnish and oil varnish are similarly mixed.  Specifications 470,483 (as open to inspection under Sect. 91) and 564,954 are referred to.
Patent GB-560944-A (GB)
Title: Improvements in or relating to machines for manufacturing soldered parts
IPC: B23K1/00
Filed: 1942-10-23
Abstract: 560,944. Soldering; corrugating. STANDARD TELEPHONES & CABLES, Ltd. (trading as STANELCO PRODUCTS), and HANDLEY, J. Oct. 23, 1942, No. 14893. [Class 83 (iv)] A power driven machine for making an article from two or more parts comprises means for passing the parts through a solder bath, means for shaping at least one of the parts, means for guiding the parts into the relative positions they are to occupy, these last two operating stages being performed without heating, and means for traversing the parts when in such positions in contact with a heating element to re-melt the solder and thus unite the parts together. Two metal tapes 1, 2 for forming an element of an air filter pass side by side first through a fluxing bath and then through a solder bath A under a guide 3 and then through a wiper C. The tape 2 is then led by guides D under the tape 1 and is crimped between toothed wheels G, H, which bring it to the tape 1 under a pivoted and spring-pressed electrically-heated element J which solders the tapes together. The tapes then pass under a water-cooled guide K. The tapes are driven through the machine by a pulling mechanism driven by a belt and pulley from the motor 7 which drives the crimping rolls.
Patent GB-1144410-A (GB)
Title: Roll changing apparatus
Inventor: LYLE DAVID
IPC: B21B31/10
Filed: 1967-03-31
Abstract: 1,144,410. Roll changing apparatus. BLAW-KNOX CO. 31 March, 1967, No. 14988/67. Heading B3M An apparatus for changing the rolls 3, 4 of a rolling mill comprises a carriage 15 which receives the rolls in cantilever fashion and is movable in a guideway 10 towards and away from the mill. The carriage 15 has wheels 16 restrained in channel shaped guideways 10 to prevent it tilting and has a head 29 with roll receiving sockets 30 pivotably mounted on a vertical axis 25 and rotated by an electric motor. The head 29 is also mounted for horizontal pivotal movement about an axis 28 by piston and cylinder assembly 34, 32. The element 21 supporting the head 29 may be raised and lowered by a screw jack 25 to position the sockets 30 for reception of the rolls. The sockets have wedges (37), Fig. 6 (not shown), to grip the ends of the rolls. The carriage is driven by rack and pinion means 17, 18 and the guideway adjacent the mill is mounted on a platform 12 which can be lowered into a pit 9 to remove the carriage when not in use. The removed rolls may be deposited on a trolley 6 which also carries the new rolls.
Patent GB-867996-A (GB)
Title: Process for recovering polymers
IPC: C08F6/24
Filed: 1957-11-07
Abstract: A process for continuously modifying solutions of rubbery polymers or copolymers of isoolefins is characterized in that a slurry of the polymer in an alkyl halide diluent is contacted with a hydrocarbon vapour of higher boiling point and which is a solvent for the polymer, under conditions adapted to volatilize diluent and dissolve the polymer and thereafter the dissolved polymer may be subjected to chemical treatment or to compounding with solids and/or oils.  If desired the polymer solution may be contacted, before or after chemical treatment or compounding, with a non-solvent of higher boiling point than the solvent, under conditions adapted to volatilize solvent and form a slurry. Specified non-solvents are alcohols, ethers, ketones, hydrocarbon oils, waxes, asphalt, resins, plasticizers, organic phosphates, and in particular water which may contain any of a wide variety of emulsifying agents.  Many various chemical treatments are specified, e.g. halogenation (optionally followed by other described chemical treatments), nitration, sulphonation, and reaction with aromatic nitroso compounds, azo-carboxylates, aldehydes, acid anhydrides, halogenated multiolefins, polar organic compounds containing nitrogen, phosphorus and/or oxygen, and aromatic sulphenyl or selenyl halides. Vulcanization of the products with the usual ingredients may then be effected. Compounding ingredients disclosed are carbon blacks, resins, metal salts, silicas, clays, zinc oxide, calcium oxide, magnesium oxide, titanium dioxide, lead oxides, iron oxides, metal silicates, aluminas, sulphur, quinoid compounds, dinitroso compounds, accelerators, ultra-accelerators, anti-oxidants, waxes, clays, plasticizers, hydrocarbon oils, tars, organic esters and mixtures thereof.  Solvent may be removed and vulcanization of the compositions may then be effected by means of the usual ingredients. The drawing accompanying the Specification illustrate continuous processes for the preparation, purification and modification of butyl rubber prepared using Friedel-Crafts catalysts.