Journal of the Franklin InstituteFranklin Institute, 1853 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] |
From inside the book
Results 1-5 of 33
Page 30
... india rubber , or any sufficiently elastic material , passing round , or partly round , the mould cylinders , for the purpose of expelling the pills from the recesses after the moulds are open , substantially as herein set forth . " 19 ...
... india rubber , or any sufficiently elastic material , passing round , or partly round , the mould cylinders , for the purpose of expelling the pills from the recesses after the moulds are open , substantially as herein set forth . " 19 ...
Page 114
... india rubber , or its equivalent , between the ways and the inclined projections which lift the saw - frame , substantially in the manner and for the purpose specified . ” 3. For an Improvement in Self - Winding Telegraphic Registers ...
... india rubber , or its equivalent , between the ways and the inclined projections which lift the saw - frame , substantially in the manner and for the purpose specified . ” 3. For an Improvement in Self - Winding Telegraphic Registers ...
Page 157
... india rubber and other materials ; it had an af- finity for the iron bearing , which prevented the displacement of the material from the rubbing surface . The manufacture of the material was not expensive , costing only 4d . per lb ...
... india rubber and other materials ; it had an af- finity for the iron bearing , which prevented the displacement of the material from the rubbing surface . The manufacture of the material was not expensive , costing only 4d . per lb ...
Page 162
... india rubber , etc. , with other non - elastic gums , resins , etc. , or shellac , sulphur , etc .; nor do I claim vulcanizing ; nor do I use vulcanized compounds ; nor do I claim mixing the elastic gums with the alkaline earths , or ...
... india rubber , etc. , with other non - elastic gums , resins , etc. , or shellac , sulphur , etc .; nor do I claim vulcanizing ; nor do I use vulcanized compounds ; nor do I claim mixing the elastic gums with the alkaline earths , or ...
Page 166
... india rubber fabrics by the mixture of ground or powdered vulcanized rubber , with the ordinary india rubber of commerce . " 7. For an Improvement in Voltaic Batteries and Apparatus for Medical and other Purposes ; Issac L. Pulvermacher ...
... india rubber fabrics by the mixture of ground or powdered vulcanized rubber , with the ordinary india rubber of commerce . " 7. For an Improvement in Voltaic Batteries and Apparatus for Medical and other Purposes ; Issac L. Pulvermacher ...
Other editions - View all
Common terms and phrases
acid alumina apparatus applied arrangement Assignor axle beam blast boiler carbon carbonic acid cast iron cause cent centre centum chamber claim coal colors combination condensation connexion construction cutter cylinder diameter effect engine equivalent evaporated experiments feet fire box flues frame Franklin Institute furnace fusel oil gases heating surface hour hydrochloric acid Improvement increase india rubber indicator diagrams invention consists Journal length letters patent lever locomotive machine machinery magnesia manner manufacture Mean effective pressure means mechanical metal miles minute mode motion mould nitric acid obtained operation oxide pass patent Pennsylvania Philadelphia pipe piston pitch placed plate portion pounds present pressure produced proportion purpose quantity railway rollers screw shaft side silica slide speed spring square inch steam Stove stroke substantially as described temperature tion train tubes valve vertical vessel weight wheel wrought iron York