IMPROVEMENTS IN TWIST LACE MACHINES
Year: 1884

page_text: I, EDWIN LONGMIRE, of the Firm of Messieurs Hollingworth and. Company, of
Long Eaton in the County of Derby, Machinists, do hereby declare the nature
of my invention for "IMPROVEMENTS IN TWIST LACE MACHINES to be as
follows:-.
My improvements consist in supporting the landing bars of twist lace machines
so as to prevent their deflection, and undue vibration by the following means; near
the front of each cross stay, between the end standards, I secure an axle pin
carrying a rocking lever, the lower end of which carries an axle capable of adjustment
in it, on which a truck revolves, which is operated by à cam on the front driving
shaft, the upper end of the lever also carries an adjustable axle which takes into a
half jack or arm secured to the front of the front landing bar. The back landing
bar carries an axle which takes into the lower end of a link capable of adjustment
as to its length, and having its upper end connected to an axle secured in the outer
end of a lever having its other end carried by an axle secured to the top tie bar,
this lever carries a truck operated by a cam secured on the cam shaft.
By such means the deflection of eitlier landing bar is prevented, and the grinding
of the carriages heretofore experienced is avoided besides which I am enabled. to
build wider machines, which work with great steadiness.

page_text: I EDWIN LONGMIRE of the firm of Messieurs Hollingworth and Company of Long
Eaton in the County of Derby Machinists do hereby declare the nature of my
invention for IMPROVEMENTS IN 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:―
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a front view of the central part of the upper portion of a twist
lace machine sufficent to illustrate my invention.
Figure 2 shows a sectional view of the same.
My Improvements consist in supporting the landing bars of twist lace machines
so as to prevent their deflection and undue vibration by the following means, near
the front of each cross stay between the end standards a bracket A projects in which
is secured an axle pin carrying a rocking lever B, the lower end of which carries an
axle capable of adjustment in it on which a truck B¹ revolves which is operated by
a cam B on the front driving shaft, the upper end of the lever also carries 'an
adjustable axle which takes into the front end of a half jack or arm B³ the back end
of which works on an axle in a bracket secured to the front landing bar C.
The back landing bar C has an axle bracket secured to it on which the lower end
of a link D works, this link is capable of adjustment as to its length, its upper end
works on an axle secured in a lever D¹ the upper end of which is carried by an
axle in a bracket secured to the back of the top tie bar E the lever 'D' is provided
with an axle carrying a truck D' which is operated by a cam D³ secured on the cam
shaft On each side of the 'bracketed cross stay other cross stays support cradles
F of the usual construction.
By such means the deflection of either landing bar is prevented, and grinding of
the carriages heretofore experienced is avoided, thus I am enabled to build wide
machines which work with great steadiness.
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 one or more half jacks, links and
truck bearing levers operated by a cam or cams on the front driving shaft.and.cam
shaft substantially as described and illustrated in the drawings annexed.
Dated this twelfth day of November 1884.