IMPROVEMENTS IN OR ADDITIONS TO GLOVE SEWING MACHINES IN ORDER TO RENDER THEM SUITABLE FOR SEWING FUR SKINS
Year: 1877

page_text: LETTERS PATENT to Hermann Wollenberg and Josef Priesner, both of Berlin,
in the Kingdom of Prussia and Empire of Germany, for the Invention of
"IMPROVEMENTS IN OR ADDITIONS TO GLOVE SEWING MACHINES IN ORDER TO
RENDER THEM SUITABLE FOR SEWING FUR SKINS."
Sealed the 20th July 1877, and dated the 26th May 1877.
PROVISIONAL SPECIFICATION left by the said Hermann Wollenberg and
Josef Priesner at the Oflice of the Commissioners of Patents on the 26th May
1877.
HERMANN WOLLENBERG and JOSEF PRIESNER, both of Berlin, in the Kingdom of
Prussia and Empire of Germany. "IMPROVEMENTS IN OR ADDITIONS TO GLOVE
SEWING MACHINES, IN ORDER TO RENDER THEM SUITABLE FOR SEWING FUR SKINS."
As the mechanism of machinery for sewing gloves is already well known, we
shall here refer only to the entire or complete mechanism, and to such parts of the
machine as will enable us to describe the improvements by which said machinery is
rendered suitable for sewing fur skins.
All machines hitherto employed for such purpose have had the defect of drawing
the hair, in sewing into the seam, in such a way that the seam shews on the furry
side of the skin. By our Invention this defect is obviated. For this purpose we
mount by hinge joint to the framing of the sewing machine a frame, which is
provided with suitable shafts and gearing set in motion by toothed gear from the
driving shaft of the sewing machine. On the end of a shaft carried by this hinged
frame is fixed a crank, to which one end of a lever is fixed, the other end of which
has formed therein a slot which works on a fixed stud carried by the hinged frame.
This lever has fixed thereon a blunt blade, the object of which is to draw or stroke
down the bair during the sewing of the skins by the machine.
This mechanism may when required be easily stopped in its action whilst the
sewing machine continues to work, and if desired the hinged frame may be turned
back on its hinge joint out of the way.

page_text: n is a blunt blade fixed by the screw n' to the lever m; this blade is employed
to draw down the hair of the fur skin.
o is a guide, which is fixed in position by the screw o².
f is a hinge joint by which our improved apparatus is connected to the frame of
the machine.
ris a button on the end of a spring stud R'; this button is provided with a
short stud, which lies in the groove g² in the boss g', when the improved
apparatus is in action, and in a recess g³ when it is desired to put such apparatus
out of action.
The following is a description of the mode of operation of our improved apparatus
applied to a sewing machine:-The driving wheel of the sewing machine having
received motion in any convenient manner gives rotary motion to the toothed
wheel a, by which rotary motion is transmitted to the toothed wheel b, and thence
to the toothed wheel d, which is fixed on the shaft g, and thereby communicates
rotary motion to the toothed wheel, which is also fixed upon the shaft g, and
motion is transmitted from the bevilled toothed wheel h to the bevilled toothed
wheel h¹ fixed upon the shaft i and gearing into h. In this way rotary motion is
given to the crank , which is fixed on the outer end of shaft i.
The moveable lever m is connected at one end by the screw to the crank, and
the other end of said lever is furnished with a slot, through which the screw or
stud passes.
The motion cómmunicated to the lever m by the combined action of the crank k
and the stud and slot, is an eccentrical motion, which is also given to the blade n
fixed on such lever m, and employed to draw down the hair of the fur skin.
The guide o is employed to bring the skins to the needle in the required
direction, and to prevent the blade n in its upward motion from drawing the hair
up with it.
In case it is desired to stop the mechanism by which movement is given to the
blade ny the apparatus fixed to the machine by the hinge joint is turned back, or
the button carried by the boss g¹ is pulled outwards so as to withdraw the stud 21
from the wheel d, when the button is turned to the left until the short stud
arrives at the little recess ³, by which means the wheel is enabled to run loosely
on its shaft; then when it is desired to set the apparatus again in action, the
button is pulled outwards so as to relieve the short stud 3 from the little recess g³,
when the button is turned round until the short stud enters the groove g², and
the stud renters the hole in the wheel d.
Having thus described the nature of our said Invention and the mode in which
we carry the same into effect, we would have it understood that what we claim as
novel and desire to secure by Letters Patent is, the combination with a glove
sewing machine of known construction of a blunt blade n and apparatus giving
motion thereto, arranged and operating in manner and for the purpose substantially
as herein shown and described.
In witness whereof, we, the said Hermann Wollenberg and Josef Priesner
have hereunto set our hands and seals, this Fifteenth day of November
in the vear of our Lord One thousand eight bundred and seventy-seven