IMPROVEMENTS IN LOOMS FOR WEAVING.
Year: 1874

page_text: ·LETTERS PATENT to William Haggas, of Burnley, in the County of
Lancaster, Mechanic, for the Invention of "IMPROVEMENTS IN LOOMS
FOR WEAVING.".
L
Sealed the 5th January 1875, and dated the 11th July‘1874.
PROVISIONAL SPECIFICATION left by the said William Haggas at the
Office of the Commissioners of Patents, with his Petition, on the
11th July 1874.
I, WILLIAM HAGGAS, of Burnley, in the County of Lancaster,
Mechanic, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
•
This Invention relates to the crank shaft of looms, and has for its
object means whereby the straight or actual working part of the
"sweep" of the crank when worn away may be repaired and the crank
made servicable, as when.
'
When from use the straight part of the sweep becomes worn, I turn
such part true and of even diameter, and replace the metal worn and

page_text: turned away therefrom by metal bushes or caps, which embrace the
straight part of the sweep. These are made in halves and secured by
set screws entering lugs cast on the bushes; or such bushes may be
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Haggas in the Great Seal Patent Office on
the 11th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HAGGAS, of Burnley, in the County of Lancaster, Mechanic, send
greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of July, in the year of our
Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Haggas, Her special licence
that me, the said William Haggis, my executors, administrators, and
assigns, or such others as I, the said William Haggas, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
CLOOMS FOR WEAVING," upon the condition (amongst others) that I, the
said William Haggas, my executors or administrators, by, an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
"Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent..
::
NOW KNOW YE, that I; the said William Haggas, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement:-_

page_text: :
This Invention relates to the crank shaft of looms, and has for its
object the means whereby the straight or actual working part of the
sweep" of the crank, when worn away, be repaired and the crank
made servicable, as when new..
When from use the straight part of the sweep becomes worn I turn
such part true and of even diameter, and replace the metal worn and
turned away therefrom by metal bushes or caps, which imbrace the
straight part of the sweep. These are made in halves and secured by
set screws entering lugs cast in the bushes; or such bushes may be
securely held in position by slip and screws or similar means.
Such being the nature and object of the said Invention, I will
now proceed to describe the same in détail, and in order that the same
may be fully understood. I have hereunto annexed a Sheet of
Drawings illustrative thereof, and have marked the same with figures
and letters of reference, the same letter referring to the same part in the
various views OP Figures.
Fig. 1 shews portion of a crank shaft with the "sweep" worn; Fig. 2
is a front view of the same having my improvements applied; Fig. 3
is a plan view; Fig. 4 is a cross section taken through the line of Fig 2;
at Fig. 5 is a view of one-half of a cap detached.
"
C is the crank shaft; D is the crank " sweep or cranked portion of
the shaft; E and F are caps, by preference of cast iron, secured in
position on the crank by the set screws G and H; the outsides of the
bushes or caps have a concave recess J, so as to fit to the portion-L of
the crank, and thereby prevent the bush or caps slipping or turning
round on the crank when in use. The halves E and F are first "faced,"
then secured together by the set screws and bored out to the required
size, then placed on a mandril and turned on the outside to the required
diameter, ready to receive the steps of the crank arm; which steps may
be of cast iron instead of brass. And it will be obvious that the bushes
or caps may be made, as shewn, in two parts, or in more than two parts,
and that such may be secured by other means than by set screws; clips
would answer the purpose, or pins passing through or partially through
the shaft and bushes or caps.

page_text: Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn,
0
WILLIAM HAGGAS. (L.S.)