Memoirs of the Most Eminent American Mechanics: Also, Lives of Distinguished European Mechanics; Together with a Collection of Anecdotes, Descriptions, &c. &c., Relating to the Mechanic ArtsHarper & brothers, 1847 - 482 páginas |
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Página 73
... contrivance was a set of " rattle traps , " not worthy the attention of men of com- mon sense ; which fixed more firmly the opposition of the rest to the adoption of the improvement . Some time later , he exhibited a model of his ...
... contrivance was a set of " rattle traps , " not worthy the attention of men of com- mon sense ; which fixed more firmly the opposition of the rest to the adoption of the improvement . Some time later , he exhibited a model of his ...
Página 122
... contrivances of men who seemed inexhaustible in their resources of evil . Even now , after thirty years , my head aches to recollect his narratives of new trials , fresh disappointments , and accumu- lated wrongs . " " In 1798 , Mr ...
... contrivances of men who seemed inexhaustible in their resources of evil . Even now , after thirty years , my head aches to recollect his narratives of new trials , fresh disappointments , and accumu- lated wrongs . " " In 1798 , Mr ...
Página 136
... contrivance is men- tioned by Mr. Martin , in his Philosophia Britannica , as the inven- tion of an Englishman , consisting of strong thick leather , which contained half a hogshead of air , so prepared that none could escape , and ...
... contrivance is men- tioned by Mr. Martin , in his Philosophia Britannica , as the inven- tion of an Englishman , consisting of strong thick leather , which contained half a hogshead of air , so prepared that none could escape , and ...
Página 160
... contrivance for scooping out earth in certain situations , to form the channels for canals or aqueducts , which , as ... contrivances necessary to effect the passage of boats from one level to another . His plans were strongly ...
... contrivance for scooping out earth in certain situations , to form the channels for canals or aqueducts , which , as ... contrivances necessary to effect the passage of boats from one level to another . His plans were strongly ...
Página 192
... contrivance of what are called indenting cylinders . These are rollers two or three inches in diameter , and made of steel , decarbonized so as to be very soft . In this state they are made to roll backward and forward , under a ...
... contrivance of what are called indenting cylinders . These are rollers two or three inches in diameter , and made of steel , decarbonized so as to be very soft . In this state they are made to roll backward and forward , under a ...
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