Frostburg mining journal. [volume] (Frostburg, Md.) 1871-1913, 1884-05-10

Tsa
TNHE New Machine retains the superior
i Vertical Feed principle, and all the good
qualities of our former Machine but many
changes have been made in the details Of con-
struction which long and thorough expert
ments and practical tests have demonstrated
will greatly increase the many advantages the
Davis has heretofore possessed.
The mechanism by which the feed motion
is produced has been radically changed in its
principles of action. The eccentric lever (by
which the shuttle lever is connected with the
driving shafD is entirely different from that
formerly used and is enclosed within the arm.
The working parts have been greatly lessencd
in number and increased in size and strength.
The minimum OF friction has been achieved
in all, insuring the greatest durability and
making the machine beyond question the
LIGHTEST RUNNING
shuttle machine in the market, and the most
Perfect Working Sewing Machine ever
produced.
The FEED is vital point in any Sewing
Machine as upon its accuracy of movement
depends the regularity, strength, evenncss and
perfection of stitching The feed commonly
in use in other machines and known as the
-Four Notion Feed consists of q horizontal I'M
der feed-bar, which has four-motioned
gear. This fecd-bar is furnished with teeth
which raise high enough above the bed of the
machine to take hold of and carry toward the
work. a presser-foot comes down on the
goods and holds them firmly to the surface of
the feed. 1t is obvious then that as the feed
moves it must carry the under-ply faster than
the upper, for the simple reason that the
preSser-toot is retartiing or holding back the
upper ply, while the feed is taking place and
a Strong and Elastic Seam Cannot Be Hade, be-
cause the lower piece being in measure
gathered yields more readily than the up
per to any strain upon the garment. The
threads will be broken and the seam will rip,
The VERTICAL FEED,
the patent for which is the exclusive property
of this Company
is Above the Bed of the Machine.
The goods rest upon a Perfectly Smooth
Surface, being held firmly by the prcsser-
foot until the feed-bar has stepped forward,
At this time the needle penctratcs the fabric
the pressure is automatically transmitted to
the feed-bar (Which comes down on the goods
close behind the needle,) and the presscr-bar
is raised. When the needle has reached its
lowest point, the full pressure has been trans
mittcd to the feed-bar, and it and the needle
bar are moved together the desired length of
stitch, both moving in unison at their highest
and lowest points.
From the above description it will be seen
that
1st-Thc presser-toot is always raised from
the fabric when the feed takes place, and pre-
sents no resistance to seams or ridges.
2d--The needle being in the fabric, moving
with the Vertical Etcl- Bar, with its full pres
sure on the goods behind the needle, makes
the feed sure and strong the stitches uniform
in length and renders it impossible to full
one piece while the other is stretched. For
the same reasons the machine is capable Of
sewing elastic goods, making smooth and
flexible seam with stitch alike on both sides;
also of sewing any number OF tlicknesses
without ba'tng, operating with equal facility
on the heaviest as well as the highest fabrics.
In addition to the superiority Of the feed,
which is peculiar to this machine, we urge
the following additional points which it
possesses. and which are essential to any Sew
ing Machine:
lst--SIMPLICITY.
1t has no under works to be looked after or
get out of order; it is composed Of a less
number of working parts than any other
shuttle machine, and its use is more easily
and quickly learned.
2d-DURABlLITY.
Its working parts are made Of the best ma
terial, are compact, strong and durable, n-
surfing the longest wear with the least expense
for repairs. Simple appliances are provided