Improvements in Hand-driving Mechanisms for Sewing and other Machines.
Year: 1890

page_text: Complete Specification Left, 17th Sept., 1890-Accepted, 25th Oct., 1890
COMPLETE SPECIFICATION.
Improvements in Hand-driving Mechanisms for Sewing and other
Machines.
I, GEORGE THORN REED, of 232 North Eutaw Street, Baltimore, in the County of
Baltimore and State of Maryland, United States of America, Machinist 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:-
This invention relates to an improved attachment to a sewing-machine whereby the
same may be driven by hand-power without interfering with the treadle mechanism,
as will hereinafter fully appear.
In the description of the said invention which follows reference is made to the
accompanying drawings forming a part hereof, and in which—
Figure 1 is a side elevation of a sewing-machine table, the fly-wheel, and the treadle
mechanism, together with the improved hand power attachment.
Figs. 2 to 11, inclusive, are details of the invention on an enlarged scale.
Similar letters of reference indicate similar parts in all the views.
In the said drawings, A represents the top of the table, and B the legs thereof.
C is the fly-wheel, having the crank-pin a, and D) the treadle. The pitman which
connects the treadle with the crank-pin is denoted by E.
The above-described parts embody no part of the present invention.
F is a hanger secured by means of screws (not shown) to the under side of the
table A. G is a lever fulcrumed to the hanger F at b.
His a connecting-rod pivoted at one end to the lever G and at the other hinged to
a clamp I adapted for attachment to the head of the pitman E. The connecting-rod H
is in two parts c and d, fastened together by means of a set-screw e. The part c has a
threaded hole to receive the set-screw e, and the other d is slotted, as shown, and fitted
with projections between which the part c fits. These projections are shown
in Figs. 7, 8, and 9, which are respectively a front view, a side view, and a cross-
section of the connecting-rod. With the above-described construction of the connecting-
rod H it is evident that it may be lengthened or shortened to suit the machine to
which the invention is to be applied, and also to change the angle of the lever G. The
outer or front end of the lever G is made short in order that when the machine is to
be run by means of the treadle D it will not be in the way of the operator; but when
the machine is to be driven by hand-power the arm of the lever is lengthened by
means of a handle J, which is inserted sidewise in a socket in which the said arm
terminates. The front face of the handle is notched at h to receive the cross-bar i of
the socket, and thereby prevent its withdrawal end wise, and its removal from the
socket laterally is prevented by means of the button j.
One jaw of the clamp I is furnished with teeth k and the other with a set-screw m,
all of which form slight depressions in the head of the pitman, which is made
of wood.
The handle J is operated by the right hand of the operator, who guides the work
with the left.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is.
In combination with the table A and the head of the pitman E, the hanger F,
lever G, with its socket g, extensible connecting-rod H, clamp 1, and removable
handle J, substantially as and for the purpose specified.
Dated this 17th day of September 1890.
F. W. BARKER,
Applicant's Agent.