, 1862-12-25

...a-
Iock-stitcb, and sew 1t properly, you. have
more elasticity than you do with the double
thread chainBtitcll, If you sew it properly;
because the one yields, the other does not. The
lines Of the 1ock-stitel arc all curved, and
will distend by drawing them closer together,
double thread: chain-stitch Is straight one, it
| connot aista1,d, OF ylela, or come closer to-
| sether:: -Bv;seHing properly is understood to
Stw as: is done ID practice. The position is
assumed that bo1h st!Ghes are well made, rs Il
| in practicalT ork- We have no Time to con
| sider ot}.sr than practical work and practical:
| macbslcrJ. These NC will endearor to con-
siissr thoroughly.
l.! The series of loops a form straight line
and the basis Of the double thread chain
stitch To ascertain their elasticity any one
/ can form from single thread or twinc these
| several loops, and then distend them to prove
their elasticity. It will be found they are no
| more elastic than single thread or tWlne.
Now it cannot become any more elastic BY
| fastening the threads in loops in the form Of
| All inverted Il, as b, fig. D.
a simple method for any 'tone to ascertain
for themselves the comparative elasticity Of
| the lock-stich and double-thraed chain
| stich is to take several pieces Of rubbcr,1 r,1one-
| half Inch wide, and hall inch long: more or
| less, no matter the thickness. Through each
of the =eyernl pieces Of rubber rerforate in
| their center hole, through these holes pass
| the threads and make the LOck-stitch as if
making it by machinery. Then with another
collection Of pieces Of rubber Of same size
thread chain-stiteh. Draw both the stitches
closely into the rubber, as is done in practi-
cal sewing. By distending the threads f1bm
each end, determine Which Of thu two stitches
arc the most elnetic.
Here the speaker showed the audience the
two stitches as described In rubber, as figure
E. Here are two stitches, the one lock-
Glitch, the othera double-thread chain-stitch,
and both are drawn into the rubber alike, as
would be done by practice. THIS Zig. 81 is
the lock-stich, and BY d15tending it's elacticity
is apparent, it reaches the line q. Here is the
Double-thread cl1aia-stitch {fg. E,) and we
will test its elaeticity-by distending five
| obtain proof positive Of the elasticity Of the
| lock-stitch, and proof positive that the
| doub1e-fhfead clain-stitch is not nearly so
/ at all.
desire that these may be passed through
| the hall, and each person determine for them
| selves the elasticity Of these two stitches
| For further illustration here arc two pieces
Of cloth with the two stitches scanned alike.
/ Here the speaker showed two pieces OF heavy
| woolen cloth, cut upon IL bias, fastened at one
| end to board, Will Il ROW Of stitches IN each,
ns f;o T =
Now you can determine By actual measure
| mcnt which is the most clas: the Loek-stisch
ara E;r1r 1,,adr Iof1 &C IN se.r;no in 7,ra c4:oo
W. ~, Isra;. ~ 1,.+i+ni, 10 ~ - *
line as Zig. F.. The other stitch you cannot
draw to within three-quarters Of an inch Of
the same line Zig, p.
Luz l4,ues sa anu Gtaeteilsn, naJ ~ passets
lnIongl sn ~ Aai. auu sGstGa W ygu, aso.
easfetg Ha IS acioas on ue5 peL9 htb
a9taaeSa t;tt; " M!any! aug no ooq9t y some IN
Willingly, which i is desirable for you to
| nIaongMs ~ sg, El un4essiana. haIa
~ NY l13na nold piece o. flannel cloth,
cut upon lhe nias anu arranged particularly
1or Tie purpose OF showing the elasticity Of
the e11 donb!e thread M chain stitch.
aosu 10 1n7 land another piece OF flannel
| cloth, cut from the Same piece, to show the
| ciast.city Ut the Lock stitch. The one is
| seTea win ING e. double thread chain stitch,
difference bctweg'tf Tie seWang Of tue ont
az the other. On. Is se77:a5 iszssa!r and I'll,
| other is sewcd as we sew it in practice The
one that is sewed right is the Lock Stitch; the
| one that Is scWed loosely, not right, is the
double thread -. claain stitch; These pieces Of
cloth would like passed through the hall,
that each MAY perceive the difference Of elias
| ticity Of the two stitches, with the double
thread chain stitch arranged purposely to
| Indicate elasticity. You will perceive the
| lock stitch, well scTcd is quite IS elastic al
the double thread chain stitch, loosely SEW.
| ed to flyor elasticity All machines making
the double thread chain stitch operate upoD
| the same principle, Some have the move,
| ments for inter]uckipg the two threads one
| waT. some another, One moves Il needle into
| the needle loop. bE can motion: some
! NAV obtain the same motion by an ECCENTRIC
| movement: one causes a STRAIGHT ncedln Ia
| enter the needle loop, another q curved one
! Some of these machines are more simn1e in
| their mechanical contriyance than othnrs. Al
| have the start and stop yibratinr moyenenf n
entering the needle, circular or eurycd int The
| needle loon. All these uachi,,es are 11pon
| one and the same principle. [ shall propose
to PASS thcn1 entirely. With fheir douh]r traad
| chain stitch. This stitch is not o popula,
| stitch, and believe never can be made So.
Now We come to tie lock stitch. The
lock stitch is made hy two CLASSES Of ma
I rhines-fI.e one class finrrafes viii, y s1utf1r
and Tie other is operated viii, q rotatina
/ hook. There is ONLY one machine which ,,se;
the rotating HOOK. Their. ara a mn1tin,icit5
which use ihc shuttle,
As there is only one machine which uses the
rotatinr hook. / viii consider first that c,ass
Of machines which use the shuttle. and sboD
| their mode Of opcratipu: and then ,yn vii
consider The rotatipg hook machinc. which i;
the Wheeler q Wilson. Now. have to1l yo1
that oil sewing machines are in co1nn1on. ec
far as the perfor:tion Of the fabric with tllt
eye-nointed needle ia CONCERNED. and III,
formation of the loop underneath the fabric.
Here is a board through Which are malc j:
series Of holes ali in line@each directly aftc]