An Apparatus for Tracing Patterns on Cloth or other Material for Cutting-out Purposes.
Year: 1890

page_text: COMPLETE SPECIFICATION.
An Apparatus for Tracing Patterns on Cloth or other Material for
Cutting-out Purposes.
I, FERDINAND BOSSHARDT, of the firm of F. Bosshardt & Co. of 4 Corporation
Street, Manchester, in the County of Lancaster, Patent Agent, do hereby declare the
nature of this invention, which has been communicated to me from abroad by
Michel Palmero, of Reims, in the Republic of France, Tailor, 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 this invention is to simplify the tracing of patterns on cloth or other
material, such as leather and skin for cutting-out purposes of wearing apparels,
which apparatus may also be used by artists, photographers, printers, engineers, and
the like.
This invention consists principally in providing means whereby an elliptical curve
can be traced and transversely marked.
And in order that my invention may be more fully 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 sectional side view and Fig. 4 a plan thereof, Fig. 3 is a side view,
Fig. 6 a plan, Figs. 2, 5 & 7, sections enlarged of a portion of the apparatus and
Fig. 8 a view of a part thereof detached.
In carrying out this invention and referring to the figures generally, a disc a is
employed, formed with a rim a' near its periphery and on the top with two grooves b, b
crossing each other at a right angle. Two sliding blocks c, c are arranged in the
grooves b, b, and fixed by means of screws d and a link f to a slotted rail e the pressure
of which screw d is sufficient to keep the two slides c, c in position on the disc a. The
distance of these slides c, c is of notable importance, in relation to the size of the
object to be traced and for which purpose the distance link f, Fig. 8, is provided,
which retains the two slides d, d the required distance apart from each other. The
rail e projects over the disc a and carries a tube g, in which is employed a rod and
chalk holder h, which traces the curve. In the groove of the rail e near the tracer is
employed, a small appliance for transversely marking the traced curve, and consisting
of a metal handle i, see Fig. 5, fixed on the rail e by means of a nut and having
employed in a slot thereof, on a pin l, a trigger k. The latter is connected by means
of a rod j fixed thereto at m, to another lever n, see Fig. 2, pivoted to the slotted rail e
at o and under the influence of a spring p, which brings back the lever n to its original
position, see Fig. 2. The free end of the lever n is furnished with a piece of chalk,
which marks the elliptical curve on the cloth, etc. transversely on the trigger k being
pulled through the rod j. To the nut q a bell shaped polished metal piece is fixed,
which serves as a rest for the rail and to straighten the folds which may occur in
the material to be traced. on. A sectors in two parts, one over the other, see
Fig. 3 & 4, is secured around the disc a by means of screws t, which permit their
relative adjustment thereon. The top edge of this sectors is formed with a series of
notches corresponding in distance with the points to be obtained in tracing, the
relative position of which notches u can be altered by means of the said screws t. The
rail e is guided in its circular movement by means of a grooved block v furnished with
a stud, see Fig. 7, running on the rim a¹ of the disc a, which permits the stud a to
move in and out of the notches u in the sector s. When the stud a is in the notch u
it retains the rail e in position, at which time the trigger k is pulled by the finger
and thereby the chalk caused to mark the traced elliptical curve transversely.
If deemed necessary, for certain uses of the apparatus, the slotted rail e and the
sectors may be graduated.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is:
"In apparatus for tracing patterns on cloth or other material for cutting-out
purposes.
1st. The general construction and combination of parts, operating substantially as
and for the purpose specified.
2nd. The disc a formed with grooves b, crossing each other at a right angle, in
combination with a slotted rail e secured to the disc a by means of distant link f,
screws and blocks e, sliding in the said groove b, substantially as set forth.
3rd. The disc a formed with an annular rim a¹ and sectors having notches in
combination with the rail e furnished with a grooved block v running on the said
rim a and having a stud a, to engage the notches », substantially as set forth.
4th. The rail e furnished near its extremity with a tracer and a trigger k actuating
a chalk holder h, substantially as set forth.
Dated this 30th day of July 1890.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.