Improvements in Looms for Pile Fabrics.
Year: 1889

page_text: Date of Application, 5th Feb., 18.9-Accepted, 22nd June, 1889
COMPLETE SPECIFICATION.
[Communicated from abroad by JAMES KIRKMAN, South Chester. Deleware County,
Pennsylvania, United States of America, Manager of Cotton Mills.]
Improvements in Looms for Pile Fabrics.
1, RICHARD KIRKMAN, of Landore Alkali Works, Swansea, in the County of
Glamorgan, Chemical 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 :-
The object of my Invention is to provide mechanism for making a new class
of pile fabrics which may be either of cotton, woollen, silk, linen or tho like,
my improvements being adaptable in connection with the production of either.
My Invention consists of a combination with the "lay" of certain levices below
described, by which the "lay" is caused to make one full heat and one partial
beat alternately. That is to say:-descriptive of the new kind of pile fabric
resulting from the use of my improvements and of the features distinctive of
the mechanism which I employ and the modus operandi which I adopt.-The
mechanism as hereunder described produces. one short beat of the "lay," and the
next beat of the "lay" is a "full beat." the two beats (one short and one long beat)
produce a pile on one side of the cloth, the next two beats (one long and one short
bent) produce a pile on the other side of the cloth, and continue doing so producing
alternately, one pile on one side, and then one pile on the other side; the slack warp
on a special beam, giving off by suitable mechanism the exact amount every two
"picks" necessary for the making of one pile-cach pile has two picks" of
filling" interlaced with the warp threads in the pile. Thus, in a loom having my
improvements, if the cloth being made has 64 "picks" of "filling" to the inch, there
will be 32 piles in the inch as follows, 16 piles on one side of the cloth and 16 piles
on the other side to the inch, making 32 piles which × 2 picks per pile
= 64" 'picks
per inch, whatever number of "picks" the cloth may have per inch, each pile will
have two "picks" of "filling" in it.
t
"
"
In the annexed drawings Fig. 1 is a side elevation partly in section of a loom
frame and of essential parts of a loom embodying the devices that form my Invention.
Fig. 2 is a front end elevation of the frame, the crank shaft, the cam shaft with
eccentrics thereon, and the levers and driving goars. Fig. 3 is a side elevation of
one of the levers. Fig. 4 is a sido elevation of one of the loose boxes of the crank
shaft, and a part of the frame. A represents the "lay," B the "heddle frame," C the
crank shaft, D and E gears, F the cam shaft, G and H represent the eccentrics
fastened on the cam shaft F. I and J levers each pivoted on K to the frame, there
being a hole L (see Fig. 3) in their upper ends, respectively, for the crank shaft. U to
pass through, and an oblong cavity M in each, for the reception of the eccentric.
N represents one of the two crank arms, O the warp beam, P'" whip roll," Q a loose
warp beam, R and S the cloth rolls.
The eccentrics G and H by turning in the cavities M cause the levers I and J to
oscillate on the pivots K to a certain extent,-indicated by dotted lines V and W,
Fig. 1(and correspondingly sliding the loose boxes [see T Fig. 4] of the crank
shaft () thus causing the "lay" to make a long and a short stroke alternately as
indicated by the dotted lines X and Y.
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.
The combination of the cam shaft K eccentrics G and H levers I and J nivots K

page_text: (loose boxes of the crank shaft) the crank shaft crank arms N and the lay" all
for the purpose of giving the "lay" a long and a short stroke alternately substantially
as and with the object in view set forth.
Doted this 5th of 1880
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.