DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.62828#0163
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divifions on the curve of the front draw parallel lines, till they
cut at the numbers on the aforefaid perpendicular. Obferve,
that the numbers on the perpendicular line are placed to an-
fwer the parallel lines as they proceed from each number
marked on the curve of the front. Every thing being now
prepared for finding the covering and fedion of the knife-
cafe, proceed to No. i, and draw a right line at pleafure, as
I.n. Take from n to io, or any other of the divifions, on the
front of the knife-cafe, and with the. compafles repeat it nine
times on the right line i.ii at No. i. Then obferve, that from
2 to i on the front of the knife-cafe is rather a wader fpace
than the other divifions, which are all equal. The intention of
this is, to bring the parallel line, which proceeds from 2 on the
front, a little farther on from the front line 1.1; therefore take
from 2 to 1 on the front, and place it from 2 to 1 on the right
line at No. 1, then will the whole length from 1 to 11 at No. 1
be equal to the whole curvature of the front of the knife-cafe,
fuppofed to be ftretched out in a right line. On the feveral
divifions on the right line 1.11, at No. 1, draw' perpendicular
lines at pleafure. Take in the compafs the fpace 1.1 from
Fig. 34, and transfer this opening to the perpendicular line 1 c
at No. 1, marking it with a pencil. Then again take the fpace
from 2 to the diagonal line at Fig. 34, and transfer this to the
perpendicular line 2 at No. 1, and mark it with a pencil as be-
fore. Do the fame from the lines 3,4, 5, 6, 7, at Fig. 34, and
O 2 obferve
divifions on the curve of the front draw parallel lines, till they
cut at the numbers on the aforefaid perpendicular. Obferve,
that the numbers on the perpendicular line are placed to an-
fwer the parallel lines as they proceed from each number
marked on the curve of the front. Every thing being now
prepared for finding the covering and fedion of the knife-
cafe, proceed to No. i, and draw a right line at pleafure, as
I.n. Take from n to io, or any other of the divifions, on the
front of the knife-cafe, and with the. compafles repeat it nine
times on the right line i.ii at No. i. Then obferve, that from
2 to i on the front of the knife-cafe is rather a wader fpace
than the other divifions, which are all equal. The intention of
this is, to bring the parallel line, which proceeds from 2 on the
front, a little farther on from the front line 1.1; therefore take
from 2 to 1 on the front, and place it from 2 to 1 on the right
line at No. 1, then will the whole length from 1 to 11 at No. 1
be equal to the whole curvature of the front of the knife-cafe,
fuppofed to be ftretched out in a right line. On the feveral
divifions on the right line 1.11, at No. 1, draw' perpendicular
lines at pleafure. Take in the compafs the fpace 1.1 from
Fig. 34, and transfer this opening to the perpendicular line 1 c
at No. 1, marking it with a pencil. Then again take the fpace
from 2 to the diagonal line at Fig. 34, and transfer this to the
perpendicular line 2 at No. 1, and mark it with a pencil as be-
fore. Do the fame from the lines 3,4, 5, 6, 7, at Fig. 34, and
O 2 obferve