Friction and counterweight in balanced weights

Power against load versus its friction

On a rod in equilibrium (with points n, g, f, A, m) one unit can act against 4, but not against its friction of 1/8, which is added into the said 4 through the frictions.

Compare friction's resistance to an equal weight

Always leave alone the real weights that resist one another, and attend to comparing together the resistance of the friction with the weight of a power equal to it.

Friction and counterweight summed as 4

A figure numbered 2 – 1 2 1 – 2 2 - 2 is glossed: here it is 2 for the friction of the whole and 2 for counterweight, which makes 4.

Columns of calculation

Long columns of figures work sums totalling 5200 and 2590, some entered in another hand, applying the friction-and-weight reasoning to numbers.

Balance beam, pulleys and rollers

The mechanisms drawn include a balance beam with pulleys at upper left, spirals, and paired cylinders or rollers, the fittings against which the friction is being reckoned.

A sinistra, asta in equilibrio coi numeri e le lettere:

Sotto a un disegno indeterminato:

Schema con i numeri in gran parte cancellati o di incerta lettura:

Figura ripetuta due volte coi numeri:

Figura coi numeri:

Figura coi numeri:

A destra girando il foglio di 90°, presso il margine sinistro:

Sulla linea mediana del foglio:

A sinistra:

A destra:

Colonna di numeri d'altra mano:

Left, rod in equilibrium with numbers and letters:

Beneath an indeterminate drawing:

Diagram with numbers largely cancelled or of uncertain reading:

Figure repeated twice with numbers:

Figure with numbers:

Figure with numbers:

Right, turning the sheet 90 degrees, near the left margin:

On the median line of the sheet:

Left:

Right:

Column of numbers in another hand: