Journal of the Franklin InstituteFranklin Institute, 1851 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
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Results 1-5 of 100
Page 2
... allow . Most of them have already been completed , and the remainder will be finished in all the next month . No doubt is entertained of the future stability of the road , when the repairs are completed , and the new channel , cut for ...
... allow . Most of them have already been completed , and the remainder will be finished in all the next month . No doubt is entertained of the future stability of the road , when the repairs are completed , and the new channel , cut for ...
Page 15
... allow a diverting influence , and free circulation to the exterior air in the air chamber , to be warmed without over - heating it ; while it is , by the arrangement of parts , forced to impinge directly against the heated surfaces ...
... allow a diverting influence , and free circulation to the exterior air in the air chamber , to be warmed without over - heating it ; while it is , by the arrangement of parts , forced to impinge directly against the heated surfaces ...
Page 25
... allowing of the lowering of the sliding bar , tooth by tooth , without disengaging the click by hand , as its lever ... allow them to re - engage with a new set of teeth when the lever is depressed , substantially as herein set forth ...
... allowing of the lowering of the sliding bar , tooth by tooth , without disengaging the click by hand , as its lever ... allow them to re - engage with a new set of teeth when the lever is depressed , substantially as herein set forth ...
Page 28
... allow the lifter to rotate upon the shaft , and the valve to descend . " This invention is shown as applied to the ... allowed gradually and easily to drop the valve when the counter - balance of the toggle is operated by the adjustable ...
... allow the lifter to rotate upon the shaft , and the valve to descend . " This invention is shown as applied to the ... allowed gradually and easily to drop the valve when the counter - balance of the toggle is operated by the adjustable ...
Page 36
... allow the gas to escape freely during the ascent . The car was hung about 4 metres ( 13-12 feet ) below the orifice of the silk tube . The instruments were hung around a large ring of sheet iron , which was attached to the usual wooden ...
... allow the gas to escape freely during the ascent . The car was hung about 4 metres ( 13-12 feet ) below the orifice of the silk tube . The instruments were hung around a large ring of sheet iron , which was attached to the usual wooden ...
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action angle apparatus applied arrangement attached axis bituminous blades blast blast furnace boiler carriage cast iron cent centre centrifugal force chord circuit claim therein coal combination condenser connected connexion construction Coulaine cubic curved cutters cylinder deflexion diameter distance effect electric telegraph electricity engine equal experiments feet flues force frame Franklin Institute furnace generatrix gutta percha heat Improvement increased indicator diagrams invention consists Journal length lever machine magnet manner mastic material means metal miles motion operation paddle passing patent pipe piston placed plane plate present pressure produced propeller proportion pump purpose rails railway revolutions per minute roadway rollers screw shaft side slide spring square inch steam steam engine steamers Stoves stroke substantially as described surface tangential angle telegraph temperature thickness tion tons tube valve velocity vertical vessel weight wheel wire wrought iron York