IMPROVEMENTS IN SEWING MACHINES FOR HEMMING SACKS OR BAGS AND OTHER FABRICS
Year: 1874

page_text: LETTERS PATENT to Andrew Jackson Gove, of San Francisco, in the
County of San Francisco, and State of California, one of the United
States of America, Engineer, for the Invention of "IMPROVEMENTS
5
COMPLETE SPECIFICATION filed by the said Andrew Jackson Gove
at the Office of the Commissioners of Patents, with his Petition
and Declaration, on the 9th December 1874, pursuant to the 9th
Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANDREW
JACKSON GOVE, of San Francisco, in the County of San Francisco, and
State of California, one of the United States of America, Engineer,
send greeting.
WHEREAS I am in possessing of an Invention for "IMPROVEMENTS IN
SEWING MACHINES FOR HEMMING SACKS OR BAGS AND OTHER FABRICS," and
have petitioned Her Majesty to grant unto me, my executors, ad-
ministrators, and assigns, Her Royal Letters Patent for the same, and

page_text: have made solemn Declaration that i verшy believe myself to
first and true Inventor thereof.
De to
NOW KNOW YE, that I, the said Andrew Jackson Gove, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement, that is to say :-
-:
My said Invention relates to an improved device and mechanism for
sewing or running up scams, and it is principally valuable for stitching
sacks, although it may be employed for crimping or gathering and
hemming fabrics of a finer material. I employ a stationary needle
having a peculiar holding device near the point for the thread or twine.
The point of this needle stands between two corrugated rollers or gear.
wheels which have a groove in each to admit the needle. The axes of
the rollers being at right angles with the needle when the edge of a sack
is introduced between them, it will be folded back and forward, and at
the same time moved along so that the needle will pass through the
folds and thus run the thread through.
In order to explain my Invention so that the construction and
operation can be readily understood, reference is had to the accom-
panying Drawings forming a part of this Specification, in which
Figure 1 is a perspective view of my machine; Figure 2, an edge view
of the grooved rollers; Figure 3, a side sectional elevation of the rollers
with the needle in position; Figure 4, a plan of needle broken off;
Figure 5, side view of needle.
A is the table of the machine. Upon this table is a base plate B
having a fixed standard C at its inner end, while the outer standard D is
hinged so as to be tipped back for a purpose to be herein-after described.
A shaft E is supported upon these standards and carries the corrugated
wheel F. Below the table is another corrugated wheel G which meshes
with the wheel F like a gear. The edges of these wheels are grooved or
notched as at H. The needle I is of considerable length, and its point
lies in the grooves H just between the wheels F and G. The rear end
of the needle is fixed in the block J, which also serves to support the
spool K. A block L is fixed to the table in front of the plate B, and
the guide M is secured to this block for the purpose of turning over the
edge of the material,

page_text: The operation will be as follows:-The needle having been first
threaded and motion imparted to the crank N the fabric will be carried
between the wheels F and G, and the corrugations or teeth will cause it
to be folded alternately forward and back, and these folds will be forced
forward upon the needle until the whole edge is stitched.
Figs. 4 & 5 are enlarged views of the needle showing the notch
or eye o near the point of the needle, within which the end of the thread
or cord is held. The material is freed from the wheels by raising the
wheel F after drawing the pin p which holds its shaft into its place in
the top of the post C. As the post D turns at its base it allows the
shaft E and wheel F to be turned up bodily.
Having thus described my said Invention, what I claim and desire to
secure by Letters Patent is,
1st. The stationary needle I upon which the fabric is forced in plaited
or crimped folds by means of the corrugated and grooved rollers F, G,
substantially in the manner as herein set forth and specified.
2d. The corrugated wheels F, G, with their grooves H in combination
with the needle I, substantially as and for the purpose herein described.
3rd. In combination with the corrugated wheels F, G, and needle I, I
claim the block L with its adjustable guide M, substantially as described.
4th. The needle I with its holding eye o, substantially as herein
described.
In witness whereof, I, the said Andrew Jackson Gove, have here-
unto set my hand and seal, this Third day of November, A.D.