CERTAIN IMPROVEMENTS IN LOOMS FOR MANUFACTURING REGULARLY KNITTED HOSIERY
Year: 1878

page_text: LETTERS PATENT to Jacob Wechselmann, of Berlin, 7, Koniggrätzerstrasse,
German Empire, for the Invention of "CERTAIN IMPROVEMENTS IN LOOMS
FOR MANUFACTURING REGULARLY KNITTED HOSIERY."
"
PROVISIONAL SPECIFICATION left by the said Jacob Wechselmann at the
Office of the Commissioners of Patents on the 21st August 1878.
JACOB WECHSELMANN, of Berlin, 7, Königgrätzerstrasse, German Empire.
CERTAIN IMPROVEMENTS IN LOOMS FOR MANUFACTURING REGULARLY KNITTED
HOSIERY."
The present Invention has for its object to effect the various operations in
stocking knitting machines in a continuous manner, and simultaneously instead of
intermittently and consecutively as heretofore, whereby a considerable saving of
time is effected.
For this purpose the advance and retreat of the needles for receiving the thread
in their loops and for throwing off the meshes previously formed is effected by a
travelling template carried by a slide or carriage, to which a continuous to-and-fro
motion is imparted by means of a crank, and the raising and lowering of the
thread sinkers is effected by a second template, also carried by a slide which is held
in a groove on the first slide by means of a spring which allows of the second slide
being shifted on the first slide at each end stroke, and which holds the second slide in
its two opposite positions by means of a stud on the spring entering a shallow

page_text: notch in the first slide. On travelling in one direction the slide operating the
sinkers is in an advanced position relatively to the other slide so as to cause its
template to actuate the sinkers before the second template actuates the needles.
At each end of the machine is an adjustable stop in such a position that when
the slides approach the end of their stroke the sinker slide in coming in contact
therewith is arrested, while the needle slide is made to complete its motion by the
crank, and thus the sinker slide is made to assume its reversed advanced position
relatively to the needle slide for the return stroke.
The mechanism for actuating the thread carrier and the loop closer does not
form part of the present Invention, and need therefore not be further described.

page_text: by the latter until it comes in contact with an adjustible stop S, whereupon its
position relatively to C is shifted, so that in the back motion it has just as much
lead as it had during the forward motion. As shewn in Fig. 12 the slide C¹
assumes the position shown in dotted lines, in which it is held by a pin i on the
spring entering the notch x of the slide C.
As before stated the mechanism for imparting motion to the thread carrier F and
slides D, D¹, forms no part of my present Invention, and need therefore not be
described.
The templates a and b that actuate respectively the needle bars A and sinkers B
are connected to the slides C, C¹, so that by the to-and-fro motion of the latter the
requisite simultaneous motion is imparted to the bars A and sinkers B by the
templates for effecting the continuous formation of the meshes.
In existing machines the formation of a row of meshes is effected by a series of
consecutive operations, which consequently take a much longer time to perform, so
that by the improved machine a much larger amount of work is performed in a
given time than in existing machines.
Having thus described the nature of my said Invention, and in what manner
the same is to be performed, I wish it to be understood that I do not limit myself
to the construction of machine shewn on the Drawing nor to the precise mode of
carrying and imparting motion to the travelling cams or templates, as these
may be variously modified without departing from the nature of my Invention, but
I claim,―
First. The method of effecting a continuous formation of meshes in knitting
machines by causing two cams or templates having a continuous to-and-fro motion
imparted to them to act simultaneously, the one on the needle bars and the other
on the sinkers for imparting the necessary motions thereto, substantially as herein-
described.
Second. The herein-described construction of knitting machinery where the
formation of the meshes is effected in a continuous manner by means of two
travelling cams or templates acting respectively on the needle bar and the thread
sinkers as set forth.
In witness whereof, I, the said Jacob Wechselmann, have hereunto set my
hand and seal, this Fifteenth day of February, in the year of our Lord
One thousand eight hundred and seventy-nine.

page_text: FIC.I.