AN IMPROVED SEWING AND EMBROIDERING MACHINE
Year: 1860

page_text: PROVISIONAL SPECIFICATION left by Pierre Mauvillin at the Office of
the Commissioners of Patents, with his Petition, on the 9th August
1860.
I, PIERRE MAUVILLIN, of Paris, in the French Empire, Merchant, do
hereby declare the nature of the said Invention for "AN IMPROVED SEWING AND
EMBROIDERING MACHINE," to be as follows:-
My Invention is intended to effect sewing and embroidery upon textile
fabrics, lace, net, leather, or other material in such manner that the attendant
is enabled to guide the needle in any direction required for the work to be
produced.
The accompanying Drawing, which is a side elevation of a sewing and
embroidering machine, illustrates the manner in which I carry my Invention
into effect. The machine is composed of a frame A supporting at its lower
part in a ball-and-socket joint E, and at its upper in a pivot F, a second
frame D, which carries the working parts of the machine. Motion is com-
municated to the needle carrier through an eccentric K, mounted on the
shäft I, which receives the first motion from fast and loose pulleys N, N¹,
or from a crank handle. The shaft I carries a mitre wheel O having frictional
contact with a cone furnished with a collar d provided with a tappet e and a
pressure spring. The wheel O gears into another mitre wheel P mounted
on a vertical shaft Q, which carries at its other end a mitre wheel R gearing
into a similar wheel S mounted on the shaft T, which communicates a to-and-

page_text: fro motion to a shuttle V. This motion is communicated by the crank a and
the slide of a balance, lever 6, the end of which carries a button sliding in a
slot c formed in the shuttle V; a slide or carrier X is supported on rollers or
wheels Y running on rails Z, connected to the second frame D by bolts or
otherwise. The machine receives a double simultaneous motion; viz., a to-
and-fro and a rotary motion about the ball-and-socket joint.
The first of these motions is produced through the action of a wheel fon a
spindle g, which passes into a hollow shaft h. This shaft carries or has formed on
it a square-threaded screw i, turning in bearings formed in the before-mentioned
slide or carrier X, in such manner that on turning the wheel f, the carrier X is
caused to advance or recede.
The second motion is produced through the action of a similar wheel k
mounted on the hollow shaft.h, which is free to revolve in a collar / held to a
part p of the frame d, and through which shaft h the spindle g of the former
wheelpasses. The hollow shaft h also carries a clutch m free to slide thereon
in a groove, which is provided with a tooth to take into a clutch n of a similar
description mounted on a fixed endless screws o. A movable frame supports
this screw as well as rollers U, round which the material to be operated on
is stretched by means of the roller ¹. The clutch m is constantly in gear
with the endless screw, notwithstanding the rotary motion of the second frame D;
q is a slide formed on the part marked p of the frame D, which slide carries a
gudgeon forming a part of the clutch n. This gudgeon carries a fork r,
the arms of which embrace the clutch m and compel it to make a rectilinear
motion by sliding on the hollow shaft h. The motion of the needle carrier is
regulated in the following manner :-A discs is mounted on the hollow shaft h,
and a similar disc t on the non-threaded part of the spindle g on which the wheel f
is mounted. The discs comes in contact with a tappet, u, fixed to a rod v,
free to move in a suitable support x. This rod v carries at one end a double
buffer or abutment u³, which acts alternately, first on one end then on the
other of a knee or projection y connected to a rod g', and thereby causes it
to ascend and descend alternately in concert with a spring . The upper part
of the rod carries another knee or projection j, which acts on the.bevil
wheels O, on a main shaft through the tappet e, in such manner that the motion
of this wheel O, and consequently that of the needle carrier J is stopped
and the shaft I only turns without transmitting motion, until by the action
of the wheel k, the rod v raises g³, frees the tappet and communicates motion
to the pinion through the shaft I and friction cone o'. The same action takes
place through the wheelf and the disc t of the rod v³, and tappet u¹ placed on
the opposite side of the carrier, which transmits the motion before described

page_text: to the rod g' and the parts connected thereto; is a rod communicating
through the levers m³, with the fork P¹, connected to the strap passing round
one of the pulleys N, N¹, by which the motion of the machine is stopped
when required; R¹, a glass plate, pierced with a hole for the passage of the
needle, is placed between the needle carrier and the material to be worked,
to keep the material on the upper plate of the shuttle frame and to enable
the work to be seen through it. The needle carrier is hinged or can be
formed with a tube and collar, which is raised or lowered at will by means
of a pressure screw. Instead of a shuttle, a hook may be used for forming
certain kinds of stitches.