IMPROVEMENTS IN Looms FOR WEAVING
Year: 1868

page_text: LETTERS PATENT to James Gregson, of Preston, in the County of
Lancaster, Machinist, and William Monk, of the same Place,
Machinist, for the Invention of "IMPROVEMENTS IN Looms FOR
WEAVING."
Sealed the 13th April 1869, and dated the 23rd October 1868.
PROVISIONAL SPECIFICATION left by the said James Gregson and
William Monk at the Office of the Commissioners of Patents, with
their Petition, on the 23rd October 1868.
We, JAMES GREGSON, of Preston, in the County of Lancaster,
Machinist, and WILLIAM MONK, of the same Place, Machinist, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LOOMS FOR WEAVING," to be as follows:-
Our Invention consists in an improved method of working what is
commonly called an under pick loom by a metallic pick for throwing
the shuttle from one shuttle box to the other, which we effect in the
following manner :-On each end of the tappet shaft is fixed a cam or

page_text: pick, which acts on a bowl and stud projecting from an horizontal picking
shaft, to the end of which is attached a swivel joint and catch box which
holds the picking stick or working from the same shaft with L lever in
form of a bat wing at the end, which operated on by a bowl gives the
same motion to the horizontal picking shaft and picking stick. After
picking the picking stick is brought back to its original position by
means of a spiral spring attached to a boss on the horizontal picking
shaft. At the back or under the lathe or what is usually called the sley
we apply a check in the shape of a small strap and spiral spring to
prevent the rebound of the shuttle. By the means aforesaid we dispense
with a great number of mechanical appliances and save a quantity of
leather used as strapping and checks. It likewise prevents black oil or
dirt from being thrown into the cloth, and a great saving from wear and
breakages is effected.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Gregson and William Monk, in the
Great Seal Patent Office on the 22nd April 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JAMES
GREGSON, of Preston, in the County of Lancaster, Machinist, and
WILLIAM MONK, of the same Place, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of October, in the year
of our Lord One thousand eight hundred and sixty-cight, in the thirty-
second year of Her reign, did,' for Herself, Her heirs and successors,
give and grant unto us, the said James Gregson and William Monk,
Her special licence that we, the said James Gregson and William
Monk, our executors, administrators, and assigns, or such others as we,
the said James Gregson and William Monk, our exécutors, adminis-
trators, 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 LOOMS
FOR WEAVING," upon the condition (amongst others) that we, the said
James Gregson and William Monk, our executors or administrators,

page_text: by an instrument in writing under our, 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: we, the said. James. Gregson and William
Monk, do hereby declare: the nature of our 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) :- 1
Our Invention consists in an improved method of working what
is known as an under pick loom; and this we do by a metalic pick
motion on each end of the tappet: shaft, which motion is obtained by and
through a cam on each end of such tappet shaft, which said cams act on
a bowl working on a stud connected with an horizontal picking shaft, to
the ends of which is attached a swivel or universal joint with catch
box for holding the picking stick.
In order that our Invention may be fully understood and readily
carried into operation, we will proceed to describe the accompanying
Drawings. In the different views similar parts are marked with corre-
sponding letters of reference.
Fig. 1 is a side elevation of the loom shewing the end of tappet shaft
on which is screwed the cam A, it likewise shews the side elevation of
picking shaft B in which is a slott C; this slott is for regulating the
stud D and bowl E for picking; F, F, are brackets for carrying same;
G is a universal joint, attached to which is a catch box H into which is
fixed picking stick I by bolt J; Fig. 2 is a front view of same; Fig 3 is
a back view of universal joint, catch box, and picking stick; Fig. 4 is a
side elevation of a universal joint and catch box reversed to give a
longer throw to the picking stick when required. K, in Fig. 1, is a buffer
strap for picking stick to buff against, which projects from side of frame
and is tightly suspended and stretched from L to L; M is likewise a strap
attached to a spiral spring to prevent the rebound of the shuttle; N is a
spiral spring to bring back the picking stick to its original place after
picking; this spring is attached to a boss-o on shaft B. The action as
before stated will be through and by the cam on tappet shaft B to bowl
on picking shaft, thence through universal joint, catch box, and picking
stick to shuttle box. It will be readily understood that by these means

page_text: a firm steady motion is obtained, and we dispense with a great number of
mechanical appliances, leather strapping, and checks, there will be but
little wear and few breakages, the cloth will come off free from dirt or
'black oil, and from the steadiness of the loom the cloth will be better
-woven.
Having now fully described the nature of our Invention and the way
in which we carry it into effect, we may observe in conclusion that we
do not confine ourselves to the precise details we have had occasion to
.describe or refer to, as many variations may be made therefrom without
deviating from the principles or main features of our Invention; but
what we consider to be novel and original, and therefore claim as the
Invention secured to us herein (are),—
First. The working of separate picking shafts by means of cams and
bowls off the ends of the tappet shaft, as herein-before described.
Second. The universal joint and catch box attached as herein-before
-described.
Third. The spring for picking shaft, as herein-before described.
Fourth. All direct actions obtained from the ends of picking shafts.
Fifth. The said universal joint and catch box reversed for increasing
length of picking stick and consequent strength of picking, as shewn
in Fig. 4.
Sixth, and last. The general arrangement and combination of parts,
as herein-before described.
In witness whereof, we, the said James Gregson and William
Monk, have hereunto set our hands and seals, this 13th day of
April, in the year of our Lord One thousand eight hundred and
sixty-nine.
Witness,
JOHN LEWIS,
Patent Agent,
.Preston.
い
JAMES GREGSON. (L.S.).
WILLIAM MONK. (L.S.)