Improvements in Pile Wire Retainers for Looms.
Year: 1894

page_text: Date of Application, 20th Nov., 1894-Accepted, 22nd Dec., 1894
COMPLETE SPECIFICATION.
Improvements in Pile Wire Retainers for Looms.
I, HARRY HARDWICK, of 2229, North Broad Street, in the City of Phila-
delphia, State of Pennsylvania, one of the United States of America, Carpet
Manufacturer, 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 :-
My invention relates to looms for weaving pile fabrics and has for its object
means whereby the production of uniform pile is insured, as I shall describe referring
to the accompanying drawings
Figure 1 is a longitudinal sectional diagram shewing sufficient of a loom to
illustrate my invention.
Figure 2 is a plan showing one of the pile wires, and
Figure 3 is a perspective view of an attachment according to my invention.
In modern looms for weaving Brussels and Wilton carpet and like pile fabrics,
the pile wires, are frequently in the form of thin blades which are intended to
stand upright in the row of pile loops determining the height as well as the width
of the loops.
If therefore the pile wire does not maintain the upright position quite across the
fabric the uniformity of the pile will be seriously affected; in practice this is often
found to be the case, the strain of the pile warp upon the pile wire causing it to
twist so that its middle portion is bent forward and downward and thus fails to
properly determine the height and position of the pile loops in this portion of the
fabric.
In order to overcome this objection I use one or more retainers arranged over
and parallel to the warps and adapted to engage with the upper edge of the pile
wire and hold it in the proper vertical position.
In Figures 1 and 2 I have shown one of these retainers A placed over the middle
of the fabric, B is the breast beam of the loom. D is the reed, a the pile fabric
which is being woven, and y the wires which are successively introduced in the
usual manner in advance of the beating up point and are successively withdrawn
after the fabric has advanced to the proper extent.
The retainer A has a hook shoulder a which engages with the pile wire last
inserted and a forwardly projecting finger b preferably of such length that it
passes through one of the spaces of the reed when fully retracted, the reed thus
serving to hold the free end of the retainer in proper position laterally.
The retainer has an arched shank d possessing such elasticity that the tongue b
and hook a of the retainer can yield vertically in order to permit a pile wire to
pass beneath the tongue to a position in advance of the hook so that in beating up,
the hook springs into engagement with the pile wire and maintains it in the desired
upright position.
The outer end of the retainer A is slotted at f for a retaining bolt g which is
screwed into a bar F fixed upon the breast beam B beyond the selvedges of the
fabric (which are indicated by dotted lines) the har F being at such a height that
the fabric can pass freely beneath it.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In a pile loom, a pile wire retainer having an arched elastic shank and a hook
shoulder engaging the pile wire last inserted, substantially as and for the purpose
set forth.
Dated this 20th day of November 1201.
ABEL & IMRAY,
'Agents for the Applicant.