Improvements in Rotary Feed Sewing Machines.
Year: 1891

page_text: Date of Application, 19th May, 1891
Complete Specification Left, 15th Feb., 1892-Accepted, 19th Mar... 1892
PROVISIONAL SPECIFICATION.
Improvements in Rotary Feed Sewing Machines.
1. CHARLES HENRY SMITH Charlton Terrace Barrow, Whalley, Blackburn
in the County of Lancaster Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention consists in a new method, or means, for working pin rings of
rotary feed sewing machines.
These machines are used to stitch the ends of pieces of cloth for bleachers
calico printers, dyers, and others, and are made by William Birch, Milton Street
Iron Works, Broughton Lane, Lower Broughton, Manchester.
In order that my said invention may be properly understood, it is necessary to
describe the manner that these machines are made.
They are made in the following manner that is to say :-
There is two horizontal shafts working in suitable bearings, one over the other,
on one end of each shaft is fixed a tooth wheel, which gears into an internal tooth;
wheel which may be worked by hand or power, thereby giving motion to said two
shafts.
The top shaft by means of a crank fixed on end of same gives motion to needle
slide bar.
The bottom shaft by means of a steel tappet crank, fixed to end of same, gives
motion to hook looper.
There is a light made steel revolving pin ring to feed fabrics &c., to machine.
Said pin ring is fitted onto suitable stationary framing.
The motion is given to said pin ring by means of an eccentric which is fixed on,
about the centre of bottom shaft, on said eccentric is fitted a clip and rod on left.
hand side of machine. The end of said rod is connected to one end of along vertical
ratchet lever, which is carried and supported in centre of machine, by means of a
fixed stud, which is fixed to centre of stationary framing at the bottom and extreme
end of said long vertical ratchet lever there is fixed a steel spring, said steel spring
and end of said long vertical ratchet lever supports, and gives motion to a thin,
steel tumbler or pusher.
Said steel tumbler or pusher is not fixed, but simply held in position by being
placed in between said spring and extreme end of said long vertical ratchet
lever.
The motion of eccentric gives motion to said long vertical ratchet lever, which
gives motion to said steel tumbler or pusher, which nips said steel pin ring at one
side of pins, and causes same to revolve round.
There is a lever and stud arrangement fixed to bottom of stationary framing
which may be placed to come in contact with said steel tumbler or pusher, to alter
length of traverse of said steel pin ring, thereby altering the length of stitch.
Now by my said invention. I, work said steel pin ring from top of machine and
I, entirely despense with all the herein before described, eccentric, eccentric clip
and rod, long vertical ratchet lever, centre stud, steel spring, thin steel tumbler or
pusher, said lever and stud arrangement for altering length of traverse of said steel
pin ring..
: -
1, will now describe the nature of my said invention, and the manner of preforming
the same, which consists principally in the construction application, use, and the
combining together of a tappet crank, and, an eccentric, and a motion slide, and,
connecting rod combined, and gripping fixing, which grips said steel pin ring.
Thereby improvements are, obtained. By preference said tappet crank and eccentric

page_text: combined, is made of steel, same is made in one part, but may be made in any
number of parts, 1, fix same on end of bottom horizontal shaft, said tappet crank
gives motion to hook looper, said eccentric gives motion to said steel pin ring, by
means of said motion slide and connecting rod combined, and said gripping fixing,
by preference said motion slide and connecting rod combined; is made of "brass,
saine is made in one part, but may be made in any number of parts, same is three
inches and three eights long, from centre to centre, but may be made shorter or
longer. I, fit same on bottom-horizontal shaft, at back of said eccentric and tappet
crank combined, the connecting rod end, to right hand side of machine, same is
made with projections to come in contact with eccentric, same is made with
elongated hole to allow motion of eccentric to work same sideways towards left and
right hand. Same is made to slide on hook box, that hook looper spindle works in,
I, fix two adjustable springs to same one to come in contact with said griping
fixing, the other to come in contact with said stationary framing. I, alter length
of traverse of said pin ring, thereby altering length of stitch, by means of an
adjustable angle bracket, which I, fix and secure to front right hand side of said
motion slide and connecting rod combined, by means of two set screws, same to
come in contact with eccentric.
By preference said gripping fixing is made of steel, same is made in two parts,
but may be made in any number of parts, firmly secured together at edges of
said steel pin ring by means of two set screws, same is made half inch long but may
be made shorter or longer, the surfaces that grip pin rings may be smooth or rough,
and cut in the manner that files are cut, or steel dies may be fitted and secured to
surfaces of same.
Same is made to grip pin rings inside and outside the full widths of same, top
part of gripping fixing is grooved out to allow pins to pass through same.
"
"I, couple said gripping fixing to connecting rod end, of said motion slide and
connecting rod combined, by means of an hinged joint, with pin through same,
and 'through connecting rod end, connecting rod end of said motion slide and
connecting rod combined, is made with a projection, or stopping piece to come in
contact with said gripping fixing, also an adjustable screw with lock nut, is screwed
to same, the end of screw to come in contact with said griping fixing.
When eccentric gives motion to said motion slide towards right hand side, it
causes gripping fixing to slide on pin ring.
When eccentric gives motion to said motion slide towards left hand side, it
causes gripping fixing to grip pin ring, inside and outside, the full width of same,
thereby causing pin ring to revolve round, I, remove brake that puts friction con
pin. ring, from bottom of stationary framing, I, fix same to top of stationary
framing, near to said gripping fixing.
⠀
My said invention is specially applicable to rotary feed sewing machines made by
said William Birch, but I, wish it to be understood that I, do not intend to limit
myself to his make of machine only as my said invention is applicable to other
makes of rotary feed sewing machines, for working pin rings of same.
"
Dated this 16th day of May 1891*
i
COMPLETE SPECIFICATION.
Improvements in Rotary Feed Sewing Machines.
1, CHARLES HENRY SMITH Charlton Terrace, Barrow, Whalley, Blackburn,
in the County of Lancaster Engineer, do hereby declare the nature of this
.invention and in what inanner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
"My invention consists in a
. rotary feed sewing machines...
new method, or means, for working pin rings of
These machines are used to stitch the ends of peices of cloth, for bleachers, &

page_text: calico-printers dyers, and others and are made by William Birch Milton Street
Iron Works, Broughton Lane, Lower Broughton, Manchester.
In order that my said invention may be properly understood it is necessary, to
describe the manner in which these machines are made.
They are made in the following manner, that is to say:-
There are two horizontal shafts, working in suitable bearings one over the other,
on one end of each shaft, is fixed a toothed wheel, which gears.into an internal
toothed wheel, which may be worked by hand, or power, thereby giving motion to
said two shafts, the top shaft by means of a crank fixed on end of same,-gives
motion to needle slide bar. The bottom shaft by means of a steel tappet crank fixed
to end of same, gives motion to hook looper, there is a light.. made steel revolving
pin ring to feed fabrics &c., to machine said pin ring is fitted onto suitable
stationary framing.
The motion given to said pin ring, by means of an eccentric which is fixed on
about the centre of bottom shaft on said eccentric is fitted a clip and rod on left.
hand side of machine, the end of said rod is connected to one end of a long vertical
ratchet lever, which is carried and supported in centre of machine: by means of a
fixed stud, which is fixed to centre of stationary framing, at the bottom and
extreme end of said long vertical ratchet lever there is fixed a steel spring, said
steel spring and end of said long vertical ratchet lever, supports and gives motion
to a thin steel tumbler or pusher, said steel tumbler or pusher, is not fixed but simply,
held in position by being placed in between said spring and extreme end of said
long vertical ratchet lever.
The mot on of eccentric gives motion to said long vertical ratchet lever, which
gives motion to said steel tumbler or pusher which nips said steel pin ring at one
side of pins and causes same to revolve round.
There is a lever and stud arrangement fixed to bottom of stationary framing
which may be placed to come in contact with said steel tumbler or pusher, to alter
length of traverse of said steel pin ring thereby altering the length of stitch.
Now by my said invention. I, work said steel pin ring from top of machine,
and I, entirerly despense with all the hereinbefore described eccentric, and eccentric
clip, and rod, long vertical ratchet lever, centre stud, steel spring, thin steel tumbler
or pusher, said lever and stud arrangement for altering length of traverse of said
steel pin ring.
1, will now describe the nature of my said invention and the manner of pre-
forming the same, which consists principally in the construction application,, use,
and the combining together of a tappet crank and an eccentric, and a motion slide
and connecting rod combined; and gripping fixing which grips said steel pin ring.
"Thereby improvements are obtained," as the gripping peice nips the pin ring with
greater certainty then the old method, and by means of spring shown and hereafter
described on drawings, continues to grip the pin ring until same is worn entirely
away. By preference said tappet crank and eccentric combined is made of steel,
same is made in one part, but may be made in any number of parts. 1, fix same:
on end of bottom horizontal shaft, said tappet crank gives motion to said hook:
looper, said eccentric gives motion to said steel pin ring, by means of said motion
slide and connecting rod combined, and said gripping fixing by preference; said
motion slide and connecting rod, combined is made of brass, same is made in
one part, but may be made in any number of parts, same. is three inches and
three eights long from centre to centre but may be made shorter or longer.
1, fit same on bottom horizontal shaft at back of said eccentric and tappet crank
combined the connecting rod end to right hand side of machine same is made with
projections to come in contact with eccentric. Same is made with elongated hole,
to allow motion of eccentric to work same sideways towards left and right hand.
Same is made to slide on hook box that hook looper spindle works in. I, fix two
adjustable springs to same, one to come in contact with said gripping fixing, the
otherito come in contact with said stationary framing.
I, alter length of traverse of said pin ring, thereby altering length of stitch, by:

page_text: means of an adjustable angle bracket which, I, fix and secure to front right hand
side of said motion slide and connecting rod combined, by means of two set screws,
same to come in contact with eccentric.
:
By preference said gripping fixing is made of steel, same is made in two parts,
but may be made in any number of parts, firmly secured together at edges of said
steel pin ring, by means of two set screws same is made, half inch long, but may
be made shorter, or longer, the surfaces that grip pin rings may be smooth or
rough, and cut in the manner that files are cut, or steel dies may be fitted and
secured to surfaces of same.
Same is made to grip pin rings inside and outside the full width of same..
Top part of gripping fixing is grooved out to allow pins to pass through saîne.
.1, couple said gripping fixing to connecting rod end of said motion slide and
connecting rod combined, by means of a hinged joint, with pin through same, and
through connecting rod end of said motion slide and connecting rod combined
same is made with a projection or stopping peice to come in contact with said
gripping fixing, also an adjustable screw, with lock nut is screwed to same, the
end of screw to come in contact with said gripping fixing.
When eccentric gives motion to said motion slide towards right hand side it
causes gripping fixing to slide on pin ring.
When eccentric gives motion to said motion slide towards left hand side it causes
gripping fixing to grip, pin ring inside and outside the full width of same, thereby
causing pin ring to revolve round.
1, remove brake that puts friction on pin ring from bottom of stationary framing
I, fix same, to top of stationary framing near to said gripping fixing.
My said invention is specially applicable to rotary feed sewing machines, made
by said William Birch, but I, wish it to be understood, that I, do not intend to limit
myself to his make of machine only, as my said invention is applicable to other
makes of rotary feed sewing machines, for working pin rings of same.
In order that my said invention may be properly understood, I, hereunto apend
one sheet of drawings representing my invention, I, have marked same, with
figurs and letters of references corresponding with these marked in this explanation
of same.
Figure 1 represents full size longitudinal front. elevation shewing tappet
crank, and eccentric combined A, fixed on end of bottom horizontal shaft B, and
motion slide and connecting rod combined C, fitted at back of tappet crank
and eccentric combined A, and sliding on hook looper box D, with gripping
fixing E, coupled to end of same, and gripping pin ring F, with adjustable screw
and lock nut G, screwed to same, the end of screw coming in contact with
gripping fixing E, with two adjustable springs H, and I, attached to same,
spring H, coming in contact with stationary framing J, spring I, coming in contact
with gripping fixing E. K, represents adjustable angle bracket fixed to front of
motion slide, and secured by two small screws, the holes for which are shown in
Figur 1, the spring H, is used to take up the knock which would otherwise occur
when the stroke of the motion slide is altered by means of angle bracket K, the
spring I, is used for the purpose of adjusting the power with which the two corners
marked "L, M," nip the pin ring.
Figure 2, represents plan view.
Figure 3, represents front view, of hinged joint gripping fixing.
Figure 4, represents plan view of tappet crank and eccentric combined.
Having thus stated the nature of my said invention" and described a convenient
and suitable mode of preforming the same, I, have to state that, I, do not restrict
myself to the precise details herein described or delineated and that, I, wish it
to be distinctly understood, that I, claim that what I, believe to be novel and
original, and claim as the invention is:-
I, claimThe combining together of a tappet crank and, an eccentric, the
tappet crank to give motion to hook looper, the eccentric to give motion, to motion,
slide and connecting, rod.combined, and gripping fixing, and pin ring..

page_text: I, also claim The motion slide and connecting rod combined, for conducting
motion from eccentric to gripping fixing, and to pin ring.
I, also claim :-The hinged joint gripping fixing, which is attached to motion
slide and connecting rod combined, by means of pin through same, or other means,
for gripping pin ring, and for conducting motion from motion slide and connecting
rod combined, to pin ring.
I, also claim The combination of the whole of the parts namely the eccentric
and tappet crank combined marked A on drawing, motion slide and connecting rod
combined marked C. The hinged joint gripping fixing marked E, together with
their various accessories as shown on drawing all operating as described in
Specification to produce the required motion of the pin ring.
All substantially such as are hereinbefore described or delineated.
Dated this 12th dox of Falm 189
CHARLES HENRY SMITH,
Applicant.