An Improved Hand Driving Attachment for Sewing Machine Treadle Motions.
Year: 1887

page_text: Date of Application, 3rd May, 1887.
Complete Left, 1st July, 1887.
Complete Accepted, 5th Aug., 1887.
An Improved Hand Driving Attachment for Sewing Machine
Treadle Motions.
1 LOIS WAITE MCCLUNG of 423 West Eleventh Street Pueblo in the County of
Pueblo and State of Colorado United States of America Gentlewoman do hereby
declare the nature of this invention to be as follows:-
My Invention, relates to a cheap durable and efficient attachment for sewing
machines whereby said machines may be driven by hand, the several parts of the
attachment however, being so arranged as not to interfere with the ordinary foot
driving mechanism of the machine, and the connections by which the attachment is
secured to the machine being preferably so arranged that the attachment may be used
in connection with machines of almost any size.
The hand attachment consists of a hand lever that is pivotally mounted upon a bar
that is arranged for connection with the machine frame, as will be presently described.
To one end of the lever, I connect a link and this link may be connected to the
connecting rod by a pivot bolt; or, it may be provided with a clamp consisting of a
U-shaped yoke within which the connecting rod is arranged to fit, this yoke being
pivotally connected to the lower end of the link by means of a pivot pin or bolt.
Between the arms of the U-shaped yoke, there is fitted a follower, said follower
being formed with flanges which overlap the edges of the arms of the yoke. At
points near the ends of the arms of the yoke, I form transverse slots in which there
is fitted a plate, said plate being formed with an enlarged head and with a threaded
shank, the arrangement being such that the plate may be inserted through the
apertures formed in the arms of the U-yoke and, having been so inserted, may be
held in place by means of a nut screwing on the threaded shank. The plate has a
central tapped hole to receive a set screw which may be turned forward to force the
follower hard against the connecting rod so as to clamp the parts together, this
arrangement being adopted in order that the yoke may be applied to the connecting
rod without disconnecting any of the parts of the machine proper; for it will be seen
that by turning off the nut, the plate may be removed, after which the follower may
be taken out the yoke may then be placed so that its arms will embrace the connecting
0

page_text: rod, after which the follower and the plate are adjusted to place, and the parts clamped
together as above described.
The bar upon which the hand lever is pivoted, is formed with slots and is held to the
standard of the machine frame by bolts which pass through spacing sleeves, or by a
clamping attachment consisting of a T-shaped bolt and a couple of clamping nuts, the
head of the bolt having holes to receive the threaded arms of a U-bolt.
In applying the device, the U-bolt is removed, the head of the T-bolt is placed
against the inner face of one of the cross braces of the machine frame the U-bolt is
passed about said cross brace and its threaded arms passed through the apertures in
the head of the T-bolt and secured by nuts, and the slotted bar is clamped between the
clamping nuts on the threaded shank of the T-bolt.
The handle of the lever may be hinged to the lever; or, the handle may have a
screw shank that screws into a tapped socket in the end of the lever, so that, when
the hand attachment is not in use, the handle may either be turned to one side out of
the way, or be entirely removed from the lever.
L. W. MCCLUNG.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.
COMPLETE SPECIFICATION.
An Improved Hand Driving Attachment for Sewing Machine
Treadle Motions.
I LOIS WAITE MCCLUNG of 423 West Eleventh Street Pueblo in the County of
Pueblo, and State of Colorado United States of America Gentlewoman do hereby 25
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:-
My invention relates to a cheap, durable and efficient attachment for sewing
machines whereby said machines may be driven by hand, the several parts of the 30
attachment, however, being so arranged as not to interfere with the ordinary foot
driving mechanism of the machine, and the connections by which the attachment is
secured to the machine being preferably so arranged that the attachment may be used
in connection with machines of almost any size.
Reference is to be had to the accompanying drawings forming a part of this 3
Specification in which―
Figure 1 is a view of my improved attachment, representing the same as applied to

page_text: a sewing machine, the view being taken in central vertical section looking toward the
right hand side of the machine.
Figure 2 is a face view of a portion of a machine.
Figure 3 is a detail view illustrating one means for connecting the handle to the
main lever.
Figure 4 is a central vertical sectional view of a sewing machine table and its
running gear, representing the same as provided with my hand attachment and
connecting devices of a modified form, the inner face of the right hand side of the
machine being represented in the view and a portion of the operating lever being
shown in section.
Figure 5 is a view in partial section of one of the connections represented in
figure 4, said connection being employed to secure the vertical bar to the machine'
frame, the view being taken upon a line corresponding approximately with the line -
of Figure 4.
Figure 6 is a view of the connection employed to clamp the link to the connecting
rod of the machine the connecting rod being shewn in section.
Figure 7 is a side view of the said clamp and figure 8 is a sectional view of the
clamp, the view being taken on line y-y of figure 7.
The same reference numerals indicate the same parts in all the figures of the.
drawings.
Referring now briefly to the general construction illustrated in the drawings above
referred to, 10 represents the table, and 11 the right hand side of the machine frame
to which the driving wheel 12 that is carried by a balance wheel 13 is connected in
the usual well known manner, the united wheels 12 and 13 being connected with a
foot treadle 14 by a connecting rod 15. The hand attachment illustrated in the
drawings consists of a lever 16 that is pivotally mounted upon a bar 17 that is
arranged for connection with the machine frame, as will be presently described. To
one end of the lever 16, I connect a link 18 and this link may be connected to the
connecting rod 15 by a pivot bolt, as illustrated in figures 1 and 2 ; or, it may be
provided with a clamp 19, the construction of which is fully illustrated in figures 6, 7,
and 8, the clamp consisting of a U-shaped yoke 20 within which the connecting
rod 15 is arranged to fit, this yoke being pivotally connected to the lower end of the
link 18 by means of a pivot pin or bolt 21. Between the arms of the U shaped
yoke 20 there is fitted a follower 22, said follower being formed with flanges 23 which
overlap the edges of the arms of the yoke. At points near the ends of the arms of
the yoke, I form transverse slots in which there is fitted a plate 24, said plate being
formed with an enlarged head 25 and with a threaded shank 26, the arrangement
being such that the plate may be inserted through the apertures formed in the arms
of the U-yoke and having been so inserted may be held in place by means of a nut 27
screwing on the threaded shank 26. The plate 24 has a central tapped hole to receive
a set screw 28 which may be turned forward to force the follower 22 hard against the
connecting rod 15 so as to clamp the parts together, this arrangement being adopted
in order that the yoke may be applied to the connecting rod without disconnecting.
any of the parts of the machine proper; for it will be seen that by turning off the
nut 27, the plate 24 may be removed, after which the follower may be taken out, the
yoke may then be placed so that its arms will embrace the connecting rod, after which
the follower and the plate 24 are adjusted to place, and the parts clamped together as
above described. The bar 17 is formed with slots and, in the construction illustrated
in figure 2, is held to the said frame 11 by bolts which pass through spacing sleeves,
but in the construction illustrated in the other figures of the drawing, the bar is held
to the main frame by such a clamp as is illustrated in detail in figure 5. This clamping
attachment consists of a T-shaped bolt 30, the shank of which is threaded to receive
the nuts 31 and 32. The head 33 of the bolt 30 is flanged and doubly apertured to
receive the threaded arms of a U-bolt 34.
In applying the device, the U-bolt is removed, the head of the T bolt 30 is placed
against the inner face of one of the cross braces of the machine frame, the U-bolt is
passed about said cross brace and its threaded arms passed through the apertures in

page_text: the head 33 of the T-bolt 30, the parts being clamped to place by nuts 35, as is clearly
shewn in figure 5, the nut 31 is turned in towards the head of the T-bolt 30, and
the projecting end of the bolt shank is passed through one of the apertures formed in
the bar 17. The nut 31 is then turned up to bear against the bar 17 and the nut 32
is applied to clamp the parts together. The handle 40 of the lever 16 may be hinged
to the lever, as represented in figures 1 and 3; or, the handle may have a screw-
shank 6 (see figure 4) that screws into a tapped socket 5 in the end of the lever, so
that when the hand attachment is not in use the handle may either be turned to one
side out of the way, or, be entirely removed from the lever.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. A sewing machine attachment, consisting essentially of a lever pivotally connected
to a bar that is arranged for attachment to the frame of the machine and a link pivotally
connected to the inner end of the lever and arranged for connection with the connecting
rod of the machine, substantially as described.
2. The combination with the crank shaft of a sewing machine, of a balance wheel,
a connecting rod, a treadle, a lever pivotally connected to a bar that is arranged to
be adjustably connected to the frame of the machine and a link that is pivotally
connected to the lever and to the connecting rod of the machine, substantially as
described.
3. The combination with a lever provided with a folding or detachable handle, of a
bar adjustably connected to the frame of the machine, a link pivotally connected to
the lever, a machine connecting rod to which the link is pivotally connected, and a
balance wheel, substantially as described.
4. The combination with a hand attachment for sewing machines of the character
described of a connecting rod clamp carried by the attachment, and clamps for
connecting the attachment to the machine frame, substantially as described.
5. The combination with a sewing machine attachment consisting of a bar, a lever
pivotally connected thereto, a link carried by the lever, and a means for attaching the
same to the machine frame, of a clamp consisting of a yoke 20, a follower 22, a set
screw, and means for holding the set screw, substantially as described.
6. The combination with an adjustable bar arranged for attachment to the frame
of the machine of a lever pivotally connected to the bar, a link pivotally connected to
the inner end of the lever, and a clamping attachment substantially as described,
whereby the link may be connected to the lever, as and for the purpose stated.
7. The combination with a supporting bar formed with vertical slots, of T shaped
bolts arranged to pass through said slots, nuts arranged to engage the threaded shanks
of the T shaped bolts, U-bolts arranged to encircle a portion of the machine frame
and to pass through apertures formed in the heads of the T-bolts, a lever pivotally
connected to the bar, a link connected to the inner end of the lever, a U-shaped yoke
pivotally connected to the lower end of the link and formed to receive the connecting
rod of the machine a follower mounted between the arms of the yoke, a bolt passed
through apertures formed in the yoke arms, a nut arranged to engage a threaded
shank formed upon the bolt, and a set screw carried by the bolt, substantially as
described.