Year: 1885

page_text: I, SALLY ADOLF ROSENTHAL of Berlin in the Kingdom of Prussia, Germany,
Engineer 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:-
The object of my invention is to construct a sewing machine which can easily
be carried in a pocket and readily fixed to a table when required.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference indicating
like parts in the various figures.
Fig. 1 is a side view of a complete machine. Fig. 2 is a front view with the
needle shown in its highest position. Fig. 3 is also a front view but the needle is
shown in its lowest position. Fig. 4 is a cross section at the line A-B seen from
below.
Fig. 5 is a cross section at the line C-D. Fig. 6 shows plan, side view and
cross section respectively of the shuttle & bobbin.
The bracket E which carries the plate i has a slot in which slides the needle
bar a, provided with a head d for the reception of the needle. The needle bar a
above the head d is formed with a second bar a¹ which passes through the
projection b and on which is placed a spiral spring, which after being depressed
causes a self-acting lifting of the needle bars.
The head d is provided with a pin c which actuates the thread guide F; the
cloth presser and feeder G on account of its position is actuated by the head d, and
the shuttle S receives its motion by means of the segment H, which latter is
attached to the bracket E by means of the boss e, on which it is movable and
being formed with a slot g, works the pin h fixed on the needle bar a.
In order that the needle will not come into contact with the shuttle S or pin h
the projection is formed on the cloth plate.
The shuttle S rests in a basket K which is fixed to the segment H by means of
the bracket m, the back of which being hinged may be opened and is caused to
lock self-actingly by means of the spring p. The use of this machine is as
follows:-
The lower thread is guided from the bobbin n through the hole t, and the upper
thread runs from the bobbin J through the tension holes q, and then through the

page_text: hole & formed in the projection b, eyelet r, and guide lever F into the needle.
If the needle is depressed, & the pin h below the double bend of the slot g, the
shuttle will not cover the slot o formed in the projection 7, for the reception of the
needle, and is caused to take up so much thread by the motion of the guide lever F
tbus projecting out of v & forming a loop which on its return is caught by the
point of the shuttle & completely drawn through by the latter, whereby the
necessary loop is formed by the lower thread.
Having now described & ascertained the nature of this invention & in what
manner the same is to be performed I declare that what I claim is
1st In a pocket staple stitching machine the combination of parts consisting
of a frame E, the needle bars a. d, a¹, the cloth plate i, the cloth presser and feed
lever G, with an under thread construction which requires a shuttle S for the under
thread, and a thread guide F for the upper thread as set forth.
2nd The arrangement of the shuttle S carried by the basket K which latter is
closed by a lid u and spring p and fixed to the segment H by means of a
bracket m in such a manner that the shuttle will receive its motion from the pin h
fixed on the needle bar a working in the slot g as set forth.
3rd The arrangement of the thread guide F, which is movable on the bracket E
by means of the pin c fixed to the head permitting the needle to pull or draw
the required length of thread, as set forth.