Improvements in Sewing Machines.
Year: 1892

page_text: Date of Application, 19th Oct., 1892-Accepted, 19th Nov., 1892
COMPLETE SPECIFICATION.
Improvements in Sewing Machines.
I CORNELIUS MUNDY, Mechanic in the employment of the Singer Manu-
facturing Company, Kilbowie, in the County of Dumbarton, 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 which relates to sewing machines, has for its object to provide a
spring and rigid combination presser foot which will enable the operator to pass
the goods to be stitched under the machine presser foot with greater ease and to
obviate the missing of stitches on entering thick goods under the machine presser
foot such as is liable to occur with presser feet as at present in use.
As represented in the accompanying drawings in which Figures 1 and 2 are side
and end elevations, Figure 3 a plan, Figure 4 an elevation showing the goods passing
under the foot, and Figure 5 a plan of the throat plate of the sewing machine, the
presser foot is constructed with a central part A rigidly fixed to the presser bar B
the said rigid part extending backward from the needle and having hinged at its
rear end a spring presser plate C which is divided or slotted so as to enable it to
act on each side of the central rigid part. The said presser plate C is acted upon
by a spring D fixed to the rear end of the said plate the upper end of the spring
being fitted in a slot or notch at the upper end of the rigid centre part. The rigid
presser foot A is beveled or cut away in front on the underside so as to enable it
to bear only upon the completed stitches in the goods or chain composed of the sewing
thread or threads as the case may be. It is also intended to act as a support to
the needle which passes down through an orifice C¹ in the plate C in front of the
beveled edge of the rigid part A and through a corresponding orifice in the throat
plate E. The spring presser plate C is divided so as to enable it to bear only upon
the goods and not upon the stitching or the chain which is held between the rigid
It is extended forward in front of the
presser foot A and the throat plate E.
needle and turned upward to allow easy entrance for the goods and yet to depress
the goods round the needle so as to prevent the goods lifting with the needle.
By having in this presser foot a rigid central part to bear upon the stitching or
chain and a spring presser plate to bear only upon the goods as described a
considerable thickness of materials may be entered and passed under the presser
plate without the rigid central part being lifted off the stitching or chain as would
be the case if the rigid part and the spring presser plate were not flexible in
relation to each other. The said spring and rigid combination presser foot is
applicable to sewing machines in general but is especially applicable to double and
single thread chain stitch sewing machines where perfect chaining is required when
no materials are being passed through the machine.
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.
1. A presser foot for sewing machines constructed substantially as hereinbefore
described with reference to the annexed drawings.
2. A presser foot for sewing machines composed of a central part rigidly secured
to the presser bar a separate presser plate pivoted at the rear end thereof and a

page_text: spring blade constituting a flexible connection between the parts substantially as
herein before described with reference to the annexed drawings.
Dated this 18th day of October 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.