Year: 1886

page_text: Date of Application, 4th Sept., 1886.
Complete Left, 4th June, 1887.
Complete Accepted, 5th July, 1887.
We JOHN HOLROYD, of Hulme, in the County of Lancaster, Manufacturer, and
the MOLDACOT POCKET SEWING MACHINE COMPANY Limited, of 58 Coleman Street,
in the City of London Manufacturers, by Saul Isaac, its Chairman, do hereby declare
the nature of this invention to be as follows :-
Our invention relates to improvements upon the pocket sewing machine as patented
to Sally Adolf Rosenthal under No. 15,513, and date 17 December 1885, and consists
in modifications of the feed, rendering the same adjustable; in the shuttle basket, and
carrying plate; in the take-up lever; in the tension arrangements; and in
modifications of various minor parts.
We modify and improve the feed arrangement as follows:-
We
We apply a lever with a cam shaped head pivoted on the operating feed bar, the
head of the said lever being so formed that it presents a greater or less projection to
the operation of the needle bar, according to the angle at which the said cam lever is
adjusted on the feed bar. This adjustment we effect by a set screw tapped in
any convenient part of the feed bar, by which the angle of the said cam lever may be
readily adjusted, and the throw of the feed bar made less or greater as desired.
carry also the spindle of the presser-foot through the cylindrical supporting piece,
applying the spiral spring within the said supporting piece, as in the aforesaid recited
Letters Patent. We place the lifting handle of the presser-foot at the extremity of
this spindle, instead of in the middle as heretofore, and we make a side recess in the
slot in which the guide pin of the presser-foot works, so that by a slight angular
movement of the presser-foot spindle it may be hung up off the work when desired.
We provide also a side slot in the presser-foot, to clear the needle to allow of such
angular movement. To provide a check to the oscillatory movement of the feed bar,
we provide a slot in the bottom of the said bar, working on a pin fixed into the main
frame.
We modify the shuttle basket and carrying plates as follows:-
We place the carrying plate close up against the frame, instead of on the end of a
pillar, as in the before recited Letters Patent, and we attach the shuttle basket to the

page_text: extremity of a strong spring attached to the face of the shuttle plate, which is
provided with a slot, by which it is operated by a screw forming a stud on the needle
bar. The shuttle basket containing the shuttle holds the latter in close proximity to
the inner face of an apron or face-plate depending from the working table, and an
auxiliary lighter spring is added to press the face of the shuttle with required pressure
against the said apron or face-plate. This auxiliary spring may be attached to the
stronger spring holding the basket as aforesaid, and may pass through the latter and
the back of the basket by means of a spoon shaped projection, so as to press against
the back of the shuttle; or, if desired, a small auxiliary spring may be attached in any
convenient way to the interior of the shuttle basket to press the shuttle gently upon
the aforesaid face-plate. We find it advisable to modify the shape of the slot in the
take-up lever from the straight form as shown in Sally Adolf Rosenthal's aforesaid
specification. This we do in order to cause the take up lever to have a period of rest
in the centre of its travel. The form we give the slot in the take up lever to effect
this, is two straight or gently curved portions of slot, one on each end of the bar
united by a reverse curve in the centre.
We modify the tension attachments as follows
We apply a pair of the ordinary tension discs adjustable by a nut and spring to
the edge of the bobbin table, or in other convenient position, leading the thread to the
said tension discs through a guiding eye placed in a convenient position. The shuttle
tension we effect either by a spring tongue on the spindle of the shuttle bobbin or by
splitting the said spindle once or twice in transverse directions, so as to give it an
outward spring pressure upon the inner orifice of the shuttle bobbin ; or we may
substitute a plain spindle for this aforesaid spring spindle, and use the usual tension
arrangements in the form of a series of holes through the walls of the shuttle and
with or without a spring.
To re-wind the shuttle bobbin we use a cranked piece of wire, provided with a
suitable handle, the other end of which is inserted into the corresponding hole in any
convenient part of the framing, the shuttle bobbin being placed upon the said crank
handle, and adhering tightly thereto when revolving with it, by reason of the tapering
of the axis of the said crank handle.
In order to enable the position of the needle to be accurately adjusted with ease, we
provide holes one through the main framing, and another from the needle bar, in such
relative positions that when they come opposite to one another the eye of the needle
should then be exactly at the face of the working table or cloth plate. The crank
winder or any other similar pin or piece of wire may be inserted through the said holes
so as to lock the needle bar in position while the said adjustment is being effected.
A buffer of leather or indiarubber may be provided at each end of the frame or
needle bar to lessen the noise and jar in working.
A hole may be provided through the bobbin table to permit the head of long needles
to pass through whilst working.

page_text: We, JOHN HOLROYD, of Hulme, in the County of Lancaster, Manufacturer, and
the MOLDACOT POCKET SEWING MACHINE COMPANY, Limited, of 58 Coleman Street,
in the City of London, Manufacturers, by Saul Isaac its Chairman, 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:
Our invention relates to improvements upon the pocket sewing machine as patented
to Sally Adolf Rosenthal under No. 15513 and date 17th December 1885 and consists
in modifications of the feed rendering the same adjustable, in the shuttle basket
and carrying plate; in the take-up lever; in the tension arrangements; and in
modifications of various minor parts.
We modify and improve the feed arrangement as follows:-
We apply a lever with a cam shaped head pivoted on the operating feed bar L,
the head of the said lever being so formed that it presents a greater or less projection
to the operation of the needle bar A, according to the angle at which the said cam
lever is adjusted on the feed bar L. This adjustment we effect by a set screw /
tapped in any convenient part of the feed bar L, by which the angle of the said cam
lever may be readily adjusted, and the throw of the feed bar L made less or greater
as desired.
We carry also the spindle of the presser foot K through the cylindrical
supporting piece k, applying a spiral spring within the said supporting piece, as in the
aforesaid recited Letters Patent. We place the lifting handle K¹ of the presser foot K
at the upper extremity of this spindle, instead of in the middle as heretofore, and we
make a side recess in the slot in which the guide pin of the presser foot works, so that
by a slight angular movement of the presser foot spindle it may be hung up off the
work when desired. We provide also a side slot in the presser foot K to clear the
needle a, to allow of such angular movement. To provide a check to the oscillatory
movement of the feed bar L we provide a slot in the bottom of the said bar, working
on a pin c fixed into the main frame C.
We modify the shuttle basket and carrying plate as follows:-
We place the carrying plate G close up against the frame C, instead of on the end of
a pillar, as in the before recited Letters Patent, and we attach the shuttle basket to
the extremity of a strong spring e, attached to the face of the shuttle plate G, which
is provided with a slot h, by which it is operated by a screw g, forming a stud on the
needle bar. The shuttle basket E, containing the shuttle F, holds the latter in close
proximity to the inner face of an apron or face plate, depending from the working
table H, and an auxiliary lighter spring e¹ is added to press the face of the shuttle F
with required pressure against the said apron or face plate. This auxiliary spring e¹
may be attached to the stronger spring & holding the basket E as aforesaid, and may
pass through the latter and the back of the basket by means of a spoon shaped
projection, so as to press against the back of the shuttle F; or, if desired, a small
auxiliary spring may be attached in any convenient way to the interior of the shuttle
basket to press the shuttle gently upon the aforesaid face plate. We find it advisable
to modify the shape of the slot in the take-up lever N from the straight form as shown

page_text: in Sally Adolf Rosenthal's aforesaid specification. This we do in order to cause the
take-up lever to have a period of rest in the centre of its travel. The form we give
the slot in the take up lever N to effect this is two straight or gently curved portions
of slot, one on each end of the bar united by a slight reverse curve in the centre.
We modify the tension attachments as follows:
We apply a pair of the ordinary tension discs m³, adjustable by a nut n and spring, to
the edge of the bobbin table or in other convenient position leading the thread to the said
tension discs through a guiding eye m, placed in a convenient position. The shuttle
tension we effect either by a spring tongue on the spindle of the shuttle bobbin or by
splitting the said spindle once or twice in transverve directions, so as to give it an
outward spring pressure upon the inner orifice of the shuttle bobbin; or we may
substitute a plain spindle for this aforesaid spring spindle, and use the usual tension
arrangements in the form of a series of holes through the walls of the shuttle and with
or without a spring.
To re-wind the shuttle bobbin we use a cranked piece of wire P provided with a
suitable handle p, the other end of which is inserted into a corresponding hole in any
convenient part of the framing, the shuttle bobbin being placed upon the said crank
handle, and adhering tightly thereto when revolving with it, by reason of the tapering
of the axis of the said crank handle.
In order to enable the position of the needle a to be accurately adjusted with ease,
we provide holes, one through the main framing, and another from the needle bar A
in such relative positions that when they come opposite to one another the eye of the
needle should then be exactly at the face of the working table H or cloth plate. The
crank winder or any other similar pin or piece of wire may be inserted through
the said holes, so as to lock the needle bar in position, while the said adjustment is
being effected.
A buffer of leather or india-rubber may be provided at each end of the frame or
needle bar to lessen the noise and jar in working.
A hole may be provided through the bobbin table to permit the head of long needles
to pass through whilst working.
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 :—
1st. The modification and improved construction of the feed mechanism in a pocket
lock stitch sewing machine, substantially as and for the purposes described.
2nd. The modification and improved construction of the shuttle basket and carrying
plate in a pocket lock stitch sewing machine, substantially as and for the purposes
specified.
3rd. The modification and improved construction of the tension attachments in a
pocket lock stitch sewing machine substantially as and for the purposes specified.
4th. The modification and improved construction in a pocket lock stitch sewing
machine whereby accurate adjustment of the needle is obtained, substantially as and
for the purposes specified.
5th. The combination in a pocket lock stitch sewing machine with the frame or
needle bar of buffers of leather, india-rubber, or similar material, substantially as and
for the purposes specified.
6th. In a pocket sewing machine the specific form of slotted take-up lever,
substantially as and for the purposes specified.
Dad thin 4th of T 1007
FELL & WILDING,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicants.