 | 1818 - 638 páginas
...two screws, with which it is furnished. A third weight, or slider, of only four ounces, is mowable along the bar, and is capable of nice adjustment, by means of a screw and a clasp. It is intended to move near the centre of the bar, and has an opening, through which may... | |
 | DAVID WILLISON - 1818 - 572 páginas
...may be fixed at any point on the bar by two screws, with which it is furnished. A third weight, or slider, of only four ounces, is moveable along the...is capable of nice adjustment, by means of a screw and a clasp. It is intended to move near the centre of the bar, and has an opening, through which may... | |
 | 1819 - 782 páginas
...on the bar near the knife edge at the opposite end ; and this weight may be fixed at any distance on the bar by two screws with which it is furnished....centre of the bar. It has an opening, through which rOay be seen divisions, each equal to one twentieth of an inch, engraved on the bar ; and a line is... | |
 | 1819 - 792 páginas
...on the bar near the knife edge at the opposite end ; and this weight may be fixed at any distance on the bar by two screws with which it is furnished....move near the centre of the bar. It has an opening, dirough which may be seen divisions, each equal to one twentieth of an iiich, engraved on the bar ;... | |
 | 1819 - 808 páginas
...opposite end ; and this weight may be fixed at any distance on the bar by two screws with which it if furnished. " A third weight, or rather slider of only...centre of the bar. It has an opening, through which may be seen divisions, each equal to one twentieth of an inch, engraved on the bar ; and a line is drawn... | |
 | 1821 - 504 páginas
...be fixed at ' any point on the bar by two screws, with which it is furnished. ' A third weight, or slider, of only four ounces, is moveable along ' the...is capable of nice adjustment, by means of a screw ' and a clasp. It is intended to move near the centre of the bar, ' and has an opening, through which... | |
 | 1821 - 502 páginas
...screws, with which it is furnished. ' A third weight, or slider, of only four ounces, is tnoveable along ' the bar, and is capable of nice adjustment, by means of a screw ' and a clasp. It is intended to move near the centre of the bar, ' and has an opening, through which... | |
 | John Playfair - 1822 - 552 páginas
...may be fixed at any point on the bar by two screws, with which it is furnished. A third weight, or slider, of only four ounces, is moveable along the...is capable of nice adjustment, by means of a screw and a clasp. It is intended to move.near the centre of the bar, and has an opening, through which may... | |
 | John Playfait - 1822 - 550 páginas
...may be fixed at any point on the bar by two screws, with which it is furnished. A third weight, or slider, of only four ounces, is moveable along the...is capable of nice adjustment, by means of a screw and a clasp. It is intended to move near the centre of the bar, and has an opening, through which may... | |
 | John Playfair - 1822 - 554 páginas
...may be fixed at any point on the bar by two screws, with which it is furnished. A third weight, or slider, of only four ounces, is moveable along the bar, and is eapable of nice adjustment, by means of a screw and a clasp. It is intended to move near the centre... | |
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... as to render any change of position impossible. A second weight, of about seven ounces and a half, is made to slide on the bar near the knife... 
