Improvements in the Presser Feet of Sewing Machines.
Year: 1896

page_text: Date of Application, 27th Nov., 1896
Complete Specification Left, 27th Aug., 1897-Accepted, 16th Oct., 1897
Improvements in the Presser Feet of Sewing Machines.
We, LEWIS HENRY SMITH and PHILIP SHATFORD, both Sewing Machine Experts
in the employment of The Singer Manufacturing Company, Kilbowie, Dumbar-
tonshire, do hereby declare the nature of this Invention to be as follows:-
This Invention has for its object to provide a presser foot for sewing machines
which shall be adapted to depress or settle the stitching threads below the general
surface level of the fabric, so that these threads may remain undisturbed by the
calendering rolls or smoothing irons used in dressing the goods, such as collars
and cuffs, and also for the finer appearance of the stitching and greater durability
of the seam.
To that end we form the under face of the presser foot with a rib in line with
the needle slot in the foot and extending lengthwise of the line of stitching.
This rib has the effect of pressing down the stitching below the range of the
smoothing irons or calendering rolls.
The rib on the under side of the presser foot may be rectangular or of similar
form in cross section projecting downwards from the foot, or it may be rounded
to convex form; or the acting face of the rib may be grooved to concave form
in which latter case this grooved rib also serves to bring into line staggered or
irregular stitches formed by lateral movements of the needle in sewing the goods.
In twin needle or multiple needle machines the presser foot may have a rib
provided for each row of stitching.
Dated thin ofth day of Nawambon 1900
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
Saint Vincent Street, Glasgow, Agent for the Applicants.
emen
ne rresser Feet of Sewing Machines.
We, LEWIS HENRY SMITH and PHILIP SHATFORD, both Sewing Machine Experts
in the employment of The Singer Manufacturing Company, Kilbowie, Dumbar-
tonshire, 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 has for its object to provide a presser foot for sewing machines
which shall be adapted to depress or settle the stitching threads below the general
surface level of the fabric, so that these threads may remain undisturbed by the

page_text: calendering rolls or smoothing irons used in dressing the goods, such as collars
and cuffs, and also for the finer appearance of the stitching and greater durability
of the seam.
The Invention is illustrated by the accompanying drawings, Figure 1 being a
perspective view of a presser foot embodying our improvement; Figure 2 a side
elevation and Figure 3 a front elevation of the same. Figure 4 is a transverse
section on line 4-4 in Figure 2, but upon a larger scale.
The under face of the presser foot a which is provided with the usual shank b
is formed with a rib d in line with the needle slot c in the foot and extending
lengthwise of the line of stitching. This rib d has the effect of pressing down
the stitching below the range of the smoothing irons or calendering rolls.
The rib on the under side of the presser foot a may be rectangular or of
similar form in cross section projecting downwards from the foot a, or it may
be rounded to convex form, and it may be applied in front of the needle aperture
when such aperture is closed at the front side in which case it has the effect of
forming a crease or groove in the fabric into which the thread is subsequently
laid in the stitching operation; or the acting face of the rib d may be grooved
to concave form as shewn at d in which latter case this grooved is disposed in
the rear of the needle aperture and thus also serves to bring into line staggered
or irregular stitches formed by lateral movements of the needle in sewing the
goods.
In twin needle or multiple needle machines the presser foot a may have a rib d
provided for each row of stitching.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is :-
A sewing machine presser foot having on its under face a rib or ribs of
rectangular or similar form extending lengthwise of the line of stitching, said
rib or ribs having either a plain, convex or grooved acting surface.
Dated this 26th day of August, 1897.
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62 Saint Vincent Street, Glasgow, Agent for the Applicants.