IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1862

page_text: LETTERS PATENT to William Harling, John Matthew Todd, and Thomas
Harling, all of Burnley, in the County of Lancaster, Machine Makers,
for the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING."
Sealed the 10th October 1862, and dated the 17th April 1862.
PROVISIONAL SPECIFICATION left by the said William Harling, John
Matthew Todd, and Thomas Harling, at the Office of the Commis-
sioners of Patents, with their Petition, on the 17th April 1862.
We, WILLIAM HARLING, JOHN MATTHEW TODD, and THOMAS HARLING, all of
Burnley, in the County of Lancaster, Machine Makers, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be
as follows:-
This Invention relates to an improved brake and stopping motion, and
consists in placing the frog upon a shaft, so that it may slightly turn, instead
of causing it to slide as at present. To the shaft to which the frog is fixed
there is a short crank or lever, to which one end of the brake rod is con-
nected, the other end of which is curved and mounted with wood or leather in
the usual manner.
Connected to the frog or to the shaft there is a second lever, the top of
which acts upon the stopping handle. This second lever is much longer
than the first crank or lever, for the purpose of acting sooner upon the
stopping handle than upon the brake. The brake rod is placed in an inclined

page_text: position, so that by its own weight the brake may be released from the fly-
wheel when the stop-rod finger is not acting against it. The stop-rod finger
and frog are placed in a direct line with the sword arm, and thereby prevent
side strain, or injurious action.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Harling, John Matthew Todd, and Thomas
Harling, in the Great Seal Patent Office on the 17th October 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HARLING, JOHN MATTHEW TODD, and THOMAS HARLING, all of Burnley, in the
County of Lancaster, Machine Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of April, in the year of our Lord One
thousand eight hundred and sixty-two, in the twenty-fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
William Harling, John Matthew Todd, and Thomas Harling, Her special
licence that we, the said William Harling, John Matthew Todd, and William
Harling, our executors, administrators, and assigns, or such others as we, the
said William Harling, John Matthew Todd, and Thomas Harling, our execu-
tors, 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 LOOMS FOR WEAVING,"
the condition (amongst others) that we, the said William Harling, John
Matthew Todd, and Thomas Harling, our executors or administrators, by an
instrument in writing under our, or their, or one of our or 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.
upon
NOW KNOW YE, that we, the said William Harling, John Matthew
Todd, and Thomas Harling, do hereby declare the nature of our said Inven-
tion, 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 relates to an improved brake and stopping motion, and
consists in fixing the frog to a shaft so that it may slightly turn or oscillate in

page_text: a bearing, instead of sliding on the loom side as at present. To the shaft to
which the frog is attached there is a double or two-armed lever, having one
arm shorter than the other. To the short arm is connected one end of the
brake rod, the other end of which is curved to suit the fly-wheel, and mounted
with wood or leather in the usual manner. The top of the long arm of the
aforesaid lever acts upon the stopping handle or setting-on rod, and in con-
sequence of its increased length acts sooner upon the strap than upon the
brake, and the strap is shifted to the loose pulley before the brake is in
contact with the fly-wheel. The brake rod is placed in an inclined position, so
that by its own weight the brake may fall back from the fly-wheel when the
stop-rod finger is not acting against the frog, and thereby prevent any pos-
sibility of the brake being in contact with the fly-wheel until required.
;
When desirable we employ an oscillating frog, and also a stop-rod finger at
each end of the loom, instead of at one end only; but, in either case, the stop-
rod finger and frog are placed in a direct line with the sword arm, and thereby
prevent side strain or injurious action.
This Invention will be clearly understood by referring to the figures and
letters on the accompanying Sheet of Drawings, in which Fig. 1 is a front, and
Fig. 2 an end elevation of a loom having our improvements attached; Fig. 3,
a detached view of the oscillating frog and brake; Fig. 4, a detached view of
the frog only; and Fig: 5, a plan representing the application of one of our
improved oscillating frogs to each end of the loom.
In Figs. 1 and 2, a are the end frames of the looms; b, the lay or lathe ;
c, the sword arms; d, the crank shaft; e, the fast and loose pulleys; f, the
fly wheel; g, the stop rod; and h, the stop-rod finger. Our improved oscil-
lating frog is shewn at k, Figs. 1, 2, and 3, and also detached in Fig. 4; it is
fixed in line with the sword arm to a shaft l, working in a hole in a boss or
bearing on the end frame. To the said shaft l, on the outside of the frame,
we fix a double lever, having a short arın or crank m, and a long arm n, the
top of which is adjusted so that it shall be in line with the stopping handle
when the loom is working. To the short arm or crank m is jointed one end of
the brake rod o, the other end of which is formed in the usual manner. The
said brake is held in an inclined position by the notched support p, so that the
brake shall fall back from the fly wheel when it is not acted upon by the
finger and frog. Thus when the stop-rod finger h is depressed, and the lay is
advancing to the beat up, the finger comes in contact with and presses against
the oscillating frog k, and causes it to slightly turn the shaft and double
lever, the long arm n of which knocks off the stopping handle, and the short
arm m presses the brake against the fly wheel, and as the arm n is longer

page_text: than the arm m, it moves a greater distance, and therefore acts sooner upon
the stopping handle than upon the brake, thereby ensuring a quicker stoppage
of the loom than with any other brake. In Fig. 5, we represent the employ-
ment of two of our improved oscillating frogs, one at each end of the loom, in a
direct line with its corresponding sword arm. The two frogs are shewn at k,
they are connected to the long shaft, working in bearings in the end frames
of the loom, and giving motion to a double lever acting as before described.
Having now fully described the nature and particulars of our said Invention,
we desire it to be understood that we claim in looms for weaving,-
First, the employment of one or two oscillating frogs, and also a double lever,
having a short arm connected to the brake rod, and a long arm for acting on
the stopping handle.
And, secondly, the peculiar system of connecting and supporting the brake
rod so that it shall be in an inclined position, and by its weight remove the
brake from the fly wheel until it is acted upon by the finger and frog, as all
such improvements are herein described and illustrated in the accompanying
Sheet of Drawings.
In witness whereof, I, the said William Harling, for and on behalf of
myself, and the said John Matthew Todd, and Thomas Harling, have
hereunto set my hand and seal, this Fourteenth day of October, in
the year of our Lord one thousand eight hundred and sixty-two.
Signed, sealed, and delivered by the
within-named William Harling, in the
presence of
E. J. HUGHES,
WILLIAM HARLING. (L.B.)
Patent Agent,
Manchester.