IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1864

page_text: LETTERS PATENT to John Smalley Grimshaw, of Huncoat, near Accring-:
.
ton, in the County of Lancaster, Spinner and Manufacturer, for the
Invention of IMPROVEMENTS IN LOOMS FOR WEAVING"
PROVISIONAL SPECIFICATION left by the said John Smalley Grimshaw
at the Office of the Commissioners of Patents, witli his Petition, on the
1st October 1864.
I, JOHN SMALLEY GRIMSHAW, of Huncoat, near Accrington, in the County
of Lancaster, Spinner and Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be as follows:-
I fix to one or both ends of the stop. rod a small arm, and to the side or
sides of the framework of the loom a bracket; the operation is as follows:-
When the reed begins to push up the weft, and before the crank is at the front
centre, the lower end of the small arm affixed to the stop rod comes in contact
with the lowest portion of the bracket fixed on the side of the framework of
the loom, and slides to the top when the crank is at the front centre, thereby
fixing the reed holder firmly, and maintaining the reed in position at the proper
time; when the motion of its crank is reversed, the small arm slides down the
bracket until all contact between them ceases, but when the shuttle is caught
in the shed, the réed holder is forced out, and the small arm fixed on the stop
rod passes under the bracket fixed on the side of the framework of the loom ;
thus no damage is caused by the shuttle being caught in the shed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Smalley Grimshaw in the Great Seal Patent Office
on the 31st March 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
SMALLEY GRIMSHAW, of Huncoat, near Accrington, in the County of Lancaster,
Spinner and Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of October, in the year of our Lord One
thousand-eight hundred and sixty-four, in the twenty-eighth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said John Smalley Grimshaw, Her special license that J; the said Jolin
Smalley Grimshaw, my executors, administrators, and assigns, or such others as
I, the said John Smalley Grimshaw, 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 "IM-
PROVEMENTS IN LOOMS FOR WEAVING," upon the condition (amongst others)
that I, the said John Smalley Grimshaw, my executors.or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, should particularly, describe and ascertain the nature of the said Inven-
tion, 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, ihat I, the said John Smalley Grimshaw, 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 (that is to say):-
This Invention consists in improved modes of making the reed fast and loose
for the purpose of preventing breakages when the shuttle is caught in the
-shed.
I fix to one or both ends of the stop rod a small arm, and to the side or sides
of the framework of the loom a bracket having a projection. When the reed
begins to push up the weft, and before the crank is at the front centre, the
lower end of the small arm affixed to the stop rod comes in contact with the
lowest portion of the projection, and slides to the top when the crank is at the
front centre, thereby holding the reed bolder firm, and maintaining the reed in

page_text: position at the proper time; when the crank is 'moving to the bottom centre
the small arm slides down the projection until all contact between them ceases,
but when the shuttle is caught in the shed, the reed holder is forced out, and
the small arm fixed on the stop rod passes under the projection, and thus no
damage is caused by the shuttle being caught in the shed.
This arrangement may be modified by changing the positions of the arm and
projection, and causing the arm to slide against the under side of the projection
during the beat up, and be apart from it at all other positions of the crank,
thereby producing the same effect of holding the reed firm for beating up and
enabling it to give way when the shuttle is caught in the shed; and as in either
arrangement the arm and projection are independent of either of the connecting
rods the positions of the arm are the same whether the crank is turned from
right to left, or from left to right. .:
This Invention will be clearly understood by referring to the figures and
letters on the accompanying Sheet of Drawings, in which Figs. 1 and 2 are end
views, and Fig. 3 a plan of part of a loom having at one of its sides one of my.
improved arrangements for making a fast and loose reed, and Fig. 4; an end
view of a modification of the same.
a represents the entire or part of one of the side frames of the loom ;-b, the
crank shaft; c, one of the sword arms; d, one of the connecting rods; c, the slay
or batten; f, the stop rod; g, the reed; h, the reed cap, and i the reed holder.
To one end of the stop rod f, Figs. 1, 2, and 3, I fix the small arm & having
at its front end a part projecting inwards, and to the frame of the loom I
The arm is placed
2
part of the top of
fix the bracket m having on it a snug or projection n.
so that its end part shall come in contact with the lower
the snug n when the reed begins to push up the weft, and then slide on the
snug until the crank arrives at its front centre, the effect of which is to firmly
lock the reed to enable it to beat up the weft. After the crank has passed a
short distance from the front to the bottom centre, the part 1 is removed from
the snug as shewn by the dotted lines, and the reed is only held by the reed
holder and the ordinary springs, and this absence of contact continues until the
reed again begins to push up the weft. When the shuttle is caught in the shed,
the reed and reed holder are forced back as shewn in Fig. 2, and no damage
or breakage takes place, and as the reed holder moves back, it turns the stop
rod aud arm a short distance, and places the projecting part of the arm below
the snug, as seen in Figs. 2 and 3. In Fig. 4 I shew the arm on the stop rod
and the projection on the frame in reverse positions to those in Figs. 1, 2, and
3, f representing the stop rod, o the projection, and p the arm, which in this
case requires no projecting part at its front end. The end of the arm comes

page_text: in contact with the under side of the projection when the reed begins to push
up the weft, and then slides under it until the crank is at the front centre,
thereby firmly holding the reed for the beat up. In all other positions of the
crank the arm and projection are not in contact, and therefore when the
shuttle is lodged the reed and reed holder can be forced back, and no damage
takes place, and it will be readily seen that in addition to the extreme simplicity
and economy, of these arrangements that the reed is fast and loose at the
proper times whichever way the crank is turned.
Having now described the nature, and particulars of my said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that I claim, the employment of an arm at oue or both ends of the
stop rod, and a projection on one or both of the side frames of the loom for
enabling the reed to be fast and loose, as all such improvements are herein
described and illustrated in the accompanying Sheet of Drawings.
In witness whereof, I, the said John Smalley Grimshaw, have hereunto
set my hand and seal, this Twenty-ninth day of March, in the year of
Our Lord One thousand eight hundred and sixty-five.
Signed; sealed, and delivered by the
within-named John Smalley Grim-
shaw, in the presence of
E. J. HUGHES,
Patent Agent,
**Manchester.
J. S. GRIMSHAW. (L.S.)