Relative sizes of needles and thread – SINGER 251 User Manual
Page 9
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
THREAD
On Machines of Class 251-
use only
left
twist
thread in the needle. Either right or left twist thread
can be used in the bobbin.
To determine the thread twist, hold the thread as
shown in
Fig. 9.
Then roll the thread over toward you—
if the strands of the thread wind tighter, the thread
is left twist; if the strands unwind or separate, the
thread is right twist.
RELATIVE SIZES OF NEEDLES AND THREAD
The following sizes of needles and thread are
recommended
according to the class of work:
SIZES
OF
NEEDLES
CLASSES OF WORK
SIZES OF
COTTON, LINEN
OR SILK
8 to
Shirtings, Sheetings, Calicoes, Muslins, Silks, Dress
60 to 80 Cotton
14
Goods and all classes of general work with light
and medium weight fabrics.
A and B Silk
16
All kinds of heavy Calicoes, light Woolen Goods,
40 to 60 Cotton
and
heavy Silk, Seaming, Stitching, etc.
C Silk
17
18
Tickings, Upholstery, Woolen Goods, Trousers, Boys'
30 to 40 Cotton
Clothing, Cloaks, etc.
D Silk
19
Heavy Woolens, Tickings, Bags, Heavy Coats,
20 to 30 Cotton
and
Trousers, Heavy Clothing generally.
E Silk
20
60 to 80 Linen
21 to
Bags, Coarse Cloths and Heavy Goods.
1 6 to 20 Cotton
24
40 to 60 Linen