Improvements in Sewing Machines.
Year: 1894

page_text: Date of Application, 3rd Sept., 1894
Complete Specification Left, 3rd July, 1895-Accepted, 3rd Aug., 1895
TRUVIDIONAL SPECIFICATION.
Improvements in Sewing Machines.
I, WILLIAM BOWDEN of 13 Swan Street, Manchester, in the County of
Lancaster, Manufacturer of Embroidered Goods, do hereby declare the nature of
this invention to be as follows:-
This invention relates to devices for automatically lifting and depressing the
presser feet of sewing machines at the end and commencement of work. Also,
when tucks and the like are formed in the same sewing machine, the motion is
employed to similarly operate the folders and depressors.
I employ for the purpose of my invention, a supplementary shaft on which one
or more cams are arranged, and this shaft is partly rotated in the acts of stopping
and starting the machine. In starting, the cams on the shaft act first through
suitable levers and links upon the presser feet and upon the folders or depressors.
By the continued motion of the treadle, the presser feet are next lowered, and
finally, the machine is started. The reverse occurs in stopping the machine.
Dated this 1st day of September A.D. 1894.
WILLIAM E. HEYS,
Agent for the Applicant.
щрогощецю In Dewing mасте.
I, WILLIAM BOWDEN of 13 Swan Street, Manchester, in the County of
Lancaster, Manufacturer of Embroidered Goods, 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 relates to devices employed in sewing machines for automatically
lifting and depressing, or moving into and out of their working positions at the
commencement and at the end of work, the presser feet and the folders or
depressers used in forming tucks.
In carrying out my invention, I arrange that by the single act of depressing a
treadle, the folders or depressers are first brought into position, next, the presser
feet, and finally, in power machines, the machine is started. Similarly at the end
of the work, the machine is first stopped, next the presser feet are removed, and
lastly the folders or depressers are raised.
I will describe my invention with reference to the accompanying drawings which
illustrate my improvements as applied to the tuck sewing machine described in
the Specification of Letters Patent applied for by me No. 11257 dated the
11th June 1894.
Below the machine table, there is mounted, in suitable bearings, a transverse
ɛhaft or spindle A, having the cams Cc fixed thereon. Near the floor, also below
the machine, there is mounted a pedal P, to which the lower ends of the two
pitmans Bare connected. The pitman B is pivoted at its upper end to the
cam C, and the upper end of the pitman is slotted and connected with a clutch
arm E by means of a pin fixed in the arm and passing through the slot. The

page_text: folders or depressers D by means of which the tucks in the cloth upon the table T
are folded into the channels H in which they are sewn by the needles N, are
mounted upon the end of the U-shaped lever L, fulcrumed at 7, the other end of
the lever being immediately below the cam C. The presser feet F are respectively
mounted upon the horizontal rods ff the back ends of which bear against the
cams cc so that they are moved simultaneously in one direction by these cams.
The motion of the presser feet in the opposite direction is effected by means of the
springs s. Similarly, the motion of the cam C and consequently of the cams c
is effected in one direction by the pitman B, and in the opposite direction by the
spring s¹.
The machine is driven by the strap S which passes over a pulley on the shaft V,
upon which there is mounted a second pulley capable of connection and disconnection
by means of a clutch actuated by the arm or lever E. The second pulley drives
the machine shaft by means of a belt S¹ as indicated in Figure 1.
When the operator desires to start the machine, she depresses the pedal P with
her foot and thus pulls down the two pitmans B b, by which means the cam C is
brought down upon the end of the lever L, causing the descent of the folders or
depressers D into their channels H. Immediately afterwards, the cam c c have
their short radii brought opposite to the ends of the rods ff, when the springs s s
are enabled to pull the presser feet and hold them upon the fabric in the channels.
This having taken place, the continued motion of the pedal brings the top of the
slot in the upper end of the pitman b into contact with the pin on the clutch
arm E, and through its agency brings the clutch into action and starts the machine.
So long as the machine is running, the pedal is kept down by the foot of the
operator. When she desires to stop the machine, she lifts her foot, whereupon
the spring lifts it by means of the pitman B, thereby releasing the clutch and
stopping the machine. The continuation of the motion forces the presser feet out
of contact by the cams cc and permits the folders or depressers to be lifted by the
spring s
In the case of a hand sewing machine, the pitman 6 the shaft V with the pulleys
clutch and their accessories, are omitted.
my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, 1 declare that what
I claim is :-
1. In a sewing machine of the type described, means or devices for moving the
folders and then the presser feet into position before the machine is started, and
for removing them from the working position in the reverse order after the machine
is stopped, constructed arranged and operated substantially as hereinbefore
described and as illustrated by the accompanying drawings.
2. In a sewing machine of the type described, means or devices for moving the
folders and then the presser feet into position and thereafter starting the machine
by the same motion, and for stopping the machine and thereafter removing the
presser feet and the folders, constructed arranged and operated substantially as
herein before described and as illustrated by the accompanying drawings.
Dated this 2nd day of July A.D. 1895.
WILLIAM E. HEYS,
Agent for the Applicant.