An Improved Arrangement and Combination of Mechanism for Actuating the Needles Used in Securing the Severed Edges of Slit-ups in Looms for Weaving.
Year: 1888

page_text: An Improved Arrangement and Combination of Mechanism for
Actuating the Needles Used in Securing the Severed Edges of
Slit-ups in Looms for Weaving.
We, SYDNEY SMART of 16, New Cannon Strect, Manchester, in the County of
Lancaster, Agent, ROBERT SKIRROW of 16, New Cannon Street of Manchester
aforesaid, Agent, and WILLIAM SIMPSON of Manchester, Overlooker, do hereby declare
the nature of this invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:
This invention consists of a novel arrangement and combination of mechanism, for
actuating the needles, used in producing the crossing or twisting action of the binder
threads, at the edge of each selvage of slit-ups.
And in order that our invention may be properly understood, and readily carried
into practical effect, we have hereunto attached the accompanying sheet of drawings,
marked with figures and letters of reference. Fig. 1 is a back view, and Fig. 2 an
A is the
end view of an apparatus constructed in accordance with our invention.
ordinary crank shaft of the loom, to which is secured the eccentric B, actuating
lever C, fixed to shaft D. This shaft is mounted in the brackets E E, and to the said
shaft are fixed the levers F F, the extremities of which are connected by the
links G G to the horizontal bar H.
During each revolution of the crank shaft, a vertical up and down motion is imparted
to the bar H, to which are attached the lower needles I. The upper needles Jare
carried in the vertical slide K. This slide is actuated by the up and down motion of
the horizontal bar H, through the medium of the lever M, which connects the slide
to the horizontal bar, so as to produce an opposite lift of the upper needles to that
of the lower.
A slight lateral movement is imparted to the horizontal bar H by the vertical
lever N, the lower end of which is acted upon by the cam O, so as to cause the points
of the needles I and J, to cross each other alternately from side to side, whilst the
points of the needles are one above the other, the needles J being sunk to form the
shed, to the right and left alternately of the binder threads passing through the eyes
of the needles I; whereby the two binder threads I and J of each adjoining selvage
will become twisted together, and fixed by the weft.

page_text: We would here observe, that a horizontal bar similar to the bar H may be
substituted for the slide K and lever M. The bar H of one lift is connected by link R
at one extremity of the two armed lever S, fixed to shaft D, as seen in Fig. 3,
the other horizontal bar of the other lift is connected by the link T to the opposite arm
of the said lever.
By this arrangement, several sets of needles may be attached to the horizontal bars,
one set being used for securing the selvage of each division or section of the fabric,
when such is desired to be slit up into three or more breadths.
Having now particularly described, and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what we
claim is
The general arrangement and combination of mechanism for actuating the needles
of slit-ups, substantially..as described and illustrated in reference to Figs. 1, 2 and 3.
Dated this 12th day of September 1888
THOS. RICHMOND,
Agent for the Applicants.