An Improved Bag and Sack Hemming Machine.
Year: 1898

page_text: Date of Application, 17th May, 1898-Accepted, 9th July, 1898
COMPLETE SPECIFICATION.
An Improved Bag and Sack Hemming Machine.
I, ALEXANDER BUICK PETERS, of 44, Tenter Strect South, Goodman's Fields,
in the County of London, Manufacturer, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The object of this invention is to provide a simple and efficient machine for
hemming the material at the mouths of bags or sacks.
Many attempts have been made to effect this object, and various machines
are in the market for the purpose, but none of them can be said to be satisfactory,
for various reasons, and a demand has therefore arisen for a simple and efficient
machine.
I have thus been led to experiment, with a result that I have perfected a
machine which I believe will be satisfactory in every respect.
In carrying out my invention, I have of course made use of well-known parts,
but I have so combined, arranged, and otherwise manipulated them, as to pro-
duce a machine which is eminently fitted for the purpose in view.
In the accompanying drawings,
Figure 1 is a partial longitudinal sectional elevation of the improved hem-
ming machine, and
Figure 2 is an end elevation, partly in section.
A is a casting, to which the machine is hinged, so that the table of the machine
is level with the top of the casting, which will thus form an addition to the
table.
A' A' are bearings, on the underside of the casting, for the driving shaft B,
which carries fast and loose pulleys B¹ B2, so that it may be driven by power.
On the inner end of this shaft B is mounted a pin disc C, the pin C¹ of which
enters a notch in a disc C of the fly-wheel of the machine.
Dis the table of the machine, provided on its underside with lugs D¹, which
are pierced to receive pivot pins D2, by which the machine is pivotted to the
casting A.
The table D also carries on its underside bearings D* for a crank shaft E,
on one end of which is the fly-wheel E¹ with its disc C3, while on the other end
is a carrier for a looper F, which is preferably of the Willcox & Gibbs type. Es is
a crank which operates the needle-bar. E³ is a cam which operates a tension
device, and E is a cam which works the feed mechanism.
G is a hollow standard of the machine, to contain some of the working parts,
and G is the head, which is slotted, so that a stud pin G* attached to the needle
bar may pass through. H is the needle bar which works on the face of the
head G, and is held in position by the bevel-edged plates G³.
Attached to the side of the head G₁ are guides J for the rod of the presser
foot J¹. The stud axle or pin G* receives a sleeve on one end of the arm or
link K, the other end of the arm being connected to the crank E, so that, by
the rotation of the crank, the-needle bar is operated. L is a rock lever, one end
of which carries a bowl which works in contact with the cam E³ on the crank
shaft E, while the other end is attached to a tension device of suitable character.

page_text: Mis the feed dog, which is bolted to the forked carrier M³, supported at one
end by the bar M³, and at the other end by a slotted portion embracing the
The advance movement of the dog M is caused by the cam E', while
the return takes place under the influence of the spring M³.
cam E
The length of stitch is regulated by the cam-shaped stop N, which may be
set as desired, to limit the return movement of the dog M.
The table is locked to the casting H by a spring bolt O, and a clamp P, secured
to the casting, overlies the table, and further secures it. Qis an auxiliary
tension device of any suitable kind.
The operation of the machinery presents no novel features, and further
description is therefore unnecessary.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
The hemming machine for bags and sacks constructed and arranged as herein
shewn and described.
1000