IMPROVE- MENTS IN STOPPING APPARATUS, APPLICABLE TO TWIST LACE MACHINES
Year: 1884

page_text: I, SAMUEL TANZER, of Sawley Road, Long Eaton, in the County of Derby, Lace
Manufacturer, do hereby declare the nature of my said Invention for IMPROVE-
MENTS IN STOPPING APPARATUS, APPLICABLE TO TWIST LACE MACHINES, to be as
follows:
On the front shaft of a twist lace machine, carrying the driving pulleys, between
the end standards I secure a circular cam, having two or more notches or recesses
in the circumference, between the front shaft, and the front comb bar, I secure an
axle pin in the standard nearest to the circular cam, or in a bracket attached to, the
standard, upon this axle pin a double ended lever rocks, the inner end of this lever
lies under the joint of the front comb bar nearest it, and holds the outer or front
end of the rocking lever carrying a catch block clear of the circumference of the
notched cam, but when the front comb bar is lifted up towards the front of the
machine, so as to afford more room for the attendant to enter threads, or carriages,
or set the bars, or for other purposes, the catch block of the lever takes into one or
other of the notches in the can, and effectually prevents the machine from being
again put in motion, until the front comb bar, is lowered into its proper position,
when the machine can then be worked in the usual manner. By such means, even
when the driving strap is thrown upon the fast pulley, the machine remains
immoveable until the comb bar is placed in its proper position.
damage, heretofore experienced is avoided, and time saved.
1
1004
Thus, the costly

page_text: I SAMUEL TANZER of Sawley Road, Long Eaton, in the County of Derby, Lace
Manufacturer, do hereby declare the nature of my Invention for "IMPROVEMENTS
IN STOPPING APPARATUS APPLICABLE TO TWIST LACE MACHINES," and in what
manner the same is to be performed, to be 'particularly described and ascertained
in and by the following statement :-
On the front shaft A (see Figures 1 and 2), which carries the driving pulleys of
a twist lace machine on either side of one of the end standards, I secure a circular
cam B, having two or more recesses in its circumference, and between the .shaft
and the front comb bar C, I secure an axle pin, either in the standard nearest to
the circular cam, or in a bracket attached to the standard, upon this axle pin a
double ended lever D rocks, the inner end of this lever when straight, if not in
a line with joint of the front comb bar E nearest it, is bent at a right angle until
the turned up end lies directly under the joint, which when in a working position
as shewn at Figure 1 holds the outer end of the lever D which is turned down to
form a catch block, quite clear of the circumference of the cam B, the driving
shaft revolving in the usual way.
But when the machine is stopped, and the front comb bar is lifted up towards
the front of the machine, so as to afford more room for the attendant to enter
threads, or carriages, or set the bars or for other purposes, the catch block of the
lever takes into one or other of the recesses in the cam as shewn at Figure 2 and
effectually prevents the machine from being again put in motion, until the front
comb bar is lowered into its proper position, when the machine can then be worked
in the usual manner.
By such means even when the driving belt is accidently thrown onto the fast
pulley, it slips round it, and ultimately slides off the main driving pulley above,
the machine remaining immoveable until the comb bar is placed in its proper
position. Thus the costly damage caused by the breaking of carriages an
bobbins, the breaking or bending of the thread guide bars, the cutting down of
the threads, and other damage heretofore experienced by starting the machine
while the front comb bar is up, is avoided and time saved.
"
Having now particularly described and ascertained the nature of my said
Invention and in what. manner the same is to be performed, I declare that what I
claim is
* The construction and employment of a cam B, recessed on its circumference, and
a rocking lever D for the purpose set forth, substantially as described. in the
foregoing Specification, and illustrated in the Drawings annexed.
"