Improvements in Glove Sewing Machines.
Year: 1890

page_text: Date of Application, 28th June, 1890
Complete Specification Left, 26th Mar, 1891--Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Glove Sewing Machines.
I, JAMES MOFFAT of 5 High Street Yeovil, in the County of Somerset,
Sewing Machine Dealer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a lock stitch machine adapted for sewing gloves.
For this purpose I mount on a suitable base two horizontal cups side by side
between the edges of which the glove is held and by the step by step motion of
which it is fed onwards. In one of the cups a rotary shuttle revolves horizontally,
within the other cup the needle reciprocates in a horizontal line. The driving
handle or pulley by means of bevil gear works a vertical spindle; a crank pin
on this spindle works the needle arm, a cam on it works the take up arm, and
under the base of the machine, movement is communicated from the vertical spindle
to the rotating shuttle carrier and to the cups for feed.
Dated this 28th day of June 1890.
ABEL & IMKAI,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Glove Sewing Machines.
I, JAMES MOFFAT, of 5 High Street, Yeovil in the County of Somerset,
Sewing Machine Dealer, 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 :-
My invention relates to a lock stitch machine adapted for sewing gloves. For
this purpose I mount on a suitable base two horizontal cups side by side between
the edges of which the glove is held and by the step by step motion of which it is
fed onwards. In one of the cups a rotary shuttle revolves horizontally, within the
other cup the needle reciprocates in a horizontal line. The driving handle or pulley
by means of bevil gear works a vertical spindle; a crank pin on this spindle works
the needle arm, a cam on it works the take up arm, and under the base of the
machine movement is communicated from the vertical spindle to the rotating shuttle
carrier and to the cups for feed.
Figure 1 of the accompanying drawings is an elevation of one side of the
machine.
Figure 2 is an elevation partly in section of the other side with side cover
removed to shew the internal gear.
Figure 3 is a plan of the upper part of the machine and Figure 4 is a plan of the
mechanism below the base plate looking upwards.
Figure 5 is a plan and front view of the revolving shuttle or looper with the spool
removed from within it.
On a base plate A are mounted on columns the two cups B. C; between the
edges of which is held in a vertical plane X the leather or fabric to be stitched.
The cup B is pressed towards C by the spring pressing down one arm of a
lever which is pivotted at 62 and which carries on its short arm a spindle b³ on
which the cup B with its supporting column is caused to revolve step by step by a
toothed wheel & fixed to the column gearing with a wheel c which is moved as
will presently be described. From the base plate A stands up a casing D con-
taining a portion of mechanism and supporting the reel d for the needle thread, the
Prios d

page_text: tension discs d¹ and the take up d². E is the driving shaft turned by hand or by
a band on a pulley e. By bevil gear el this gives motion to the vertical shaft
from which the rest of the mechanism. derives motion as follows. A crank pin f
working in a curved slot gives reciprocating motion to the sliding barn and its
bracket n which holds the needle N. The needle is thus caused to reciprocate
horizontally immediately over the edge of the cup B and through a throat at n²
formed in the stationary bracket ³ projecting from the casing D. Within the
hollow of the bracket n is accommodated the shuttle mechanism which is covered
by a hinged lid nt. On the shaft F is fixed a cam f2 which works a lever d³
pivotted at d. To this lever is adjustably attached the take up lever d². At the
lower end of the shaft F there are a cam f3 and a crank f. The cam³ moves
in opposition to a spring a levere which acts on a wheel c³ as a silent feed moving
it step by step round in the one direction by a friction pawl. c which slips in the
other direction. Another spring friction pawl e prevents the wheel c³ from turn-
ing backwards. The wheels and care both clamped on a sleeve c' which extends
up to and is in one with the cup C. Thus the cup C and also the cup B connected
to it by the gearing care turned step by step feeding onwards the fabric X
clamped between the edges of the two cups. The length of stitch can be varied
by moving an index lever G thus bringing a pin g into various positions relatively
to the levere and allowing it greater or less backstroke after its forward stroke
has been effected by the cam 3. The crank at the lower end of the shaft F
works a lever h which has a slot pivotted at and works a crank h² on the lower
end of a spindle H. On the top of this spindle is fixed a disc having a
segment projecting up from it to operate as a shuttle driver. On the disc
rests the shuttle or looper in the form of a cage K which has a rim extending
partly round its periphery, running in a groove in the bracket n³ and which has at
one part of its periphery a hook k. Within a casing k lying in the cage K is a
spool containing the shuttle thread, this spool being free to revolve upon a central
pin projecting up from the bottom of the cage K. From the casing ¹ projects
towards the needle throat n² a beak through which the thread is led from the spool,
passing through the beak under a certain amount of spring clamping pressure. The
cage K is carried round by the revolving segment 3 so that when the needle N has
penetrated the fabric X and has begun to retreat, somewhat bulging its thread
beyond the fabric, the hook k enters the bulge and carries the thread over and
round the cage K containing the casing k¹ and spool thus engaging the lower thread
in the loop of the needle thread so as to form lockstitch.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is
1. A. glove sewing machine constructed and operating substantially as herein
described with reference to the accompanying drawings.
2. In a glove sewing machine the combination of the two cups B and C pressing
leather or fabric between them and feeding it by their step by step rotation, the
needle N reciprocating horizontally over the one cup and the shuttle or looper K
revolving in the other cup and carrying the loop of the needle thread over the spool
containing the other thread, substantially as described.
Dated this 26th day of March 1891.
ABEL & IMRAY,
Agents for the Applicant.