Improvements in Sewing Machines.
Year: 1895

page_text: Date of Application, 2nd Jan., 1895
Complete Specification Left, 2nd Oct., 1895-Accepted, 2nd Nov., 1895
I JOHN WHITE, Engineer, of The Sewing Machine Syndicate, Wellingborough,
in the County of Northampton, do hereby declare the nature of this invention to
be as follows:-
This invention for improvements in sewing machines relates to machines in which
the work is fed by means of a complete ring or wheel and has for its object_to
provide an arrangement whereby the amount the feed wheel projects above the
cloth plate can be readily adjusted by the hand of the operator whilst the machine
is at work.
In a machine constructed according to this invention the feed wheel or ring
rotates on a yoke fixed at one side to a shaft supported in suitable bearing so that
At the bottom
the yoke can rotate to a limited extent about the axis of the shaft.
of the yoke is a horizontal slot in which works the eccentric pin of a short shaft
mounted in a bearing and provided with a thumb knob or head by which it can be
turned by the operator. A spring pressing on the short shaft prevents any
vibration from affecting its position. It will readily be seen that by turning the
short shaft the amount the feed plate or ring projects beyond the cloth plate is
regulated.
Dated this 2nd day of January 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
Improvements in Sewing Machines.
I JOHN WHITE, Engineer, of The Sewing Machine Syndicate, Wellingborough,
in the County of Northampton, 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 for improvements in sewing machines relates to machines in which
the work is fed by means of a complete ring or wheel and has for its object to
provide an arrangement whereby the amount the feed wheel projects above the
cloth plate can be readily adjusted by the hand of the operator whilst the machine
is at work.
In a machine constructed according to this invention the feed wheel or ring
rotates on a yoke fixed at one side to a shaft supported in suitable bearings so that
the yoke can rotate to a limited extent about the axis of the shaft.
At the bottom
of the yoke is a horizontal slot in which works the eccentric pin of a short shaft
mounted in a bearing and provided with a thumb knob or head by which it can be
turned by the operator. A spring pressing on the short shaft prevents any
vibration from affecting its position. It will readily be seen that by turning the
short shaft the amount the feed plate or ring projects beyond the cloth plate is
regulated.

page_text: In the accompanying sheet of illustrative drawings, Fig. 1 is a sectional end
elevation showing the feed ring and its supporting and operating parts of a sewing
machine constructed according to this invention, and Fig. 2 is a longitudinal
section of the same.
The feed wheel or ring a is mounted on the yoke b fixed at one side to the
shaft c supported in suitable bearings & cast on the machine frame e.
The yoke
can thus be rotated about the shaft c in a vertical plane to raise and lower the feed
wheel or ring a.
At the bottom of the yoke is fixed by means of the steady pins f
and screw ga small piece h in which is a horizontal slot i. A short shaft is
mounted in a bearing in formed in the foot of the machine and has a projecting
eccentric pin n taking into the horizontal slot i. The shaft is operated by means
of the milled head o. A spring p pressing in a groove r in the short shaft keeps
the shaft from any end wise motion and also serves to prevent any vibration from
rotating the shaft. The pressure of the spring is adjusted by the small screws s.
It will readily be seen that by turning the short shaft the amount the feed plate
or ring projects beyond the cloth plate t is regulated.
The means for holding the feed plate or ring on the yoke and for giving the
feed plate a step feed are shown but form no part of the present invention.
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. The feed plate or ring supporting mechanism consisting of a yoke pivoted at
one side to the machine frame and on which the feed plate or ring is free to be
rotated and provided with a horizontal groove, and of a short shaft mounted in the
machine frame and having an eccentric stud taking into the horizontal groove
substantially as described and for the purpose set forth.
2. The improvements in sewing machines substantially as described with
reference to the drawings.
Dated this 2nd day of October 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.