Improvements in or connected with Loom Jacquards for Stopping - the Loom through Faulty Working of the Cards.
Year: 1899

page_text: Date of Application, 13th Mar., 1899
Complete Specification Left, 17th July, 1899-Accepted, 30th Sept., 1899
Date of Application, 13th Mar., 1899
Complete Specification Left, 17th July, 1899-Accepted, 30th Sept., 1899
PROVISIONAL SPECIFICATION.
Improvements in or connected with Loom Jacquards for Stopping
-
the Loom through Faulty Working of the Cards.
WILLIAM HEATON SNOWDEN, Holywell Cottage, Halstead, Essex, Foreman in
Silk Weaving, HARRY BRIGGS, 63, Owens Terrace, Halstead, Essex, Silkweaving
Overseer, do hereby declare the nature of this invention to be as follows:-
This improvement is a mechanism which derives its action from upper surface
of Jacquard cylinder, and is set in motion when the cards shift from their
ordinary position and "lap" or get on the top of the cylinder pegs: Immediately
the cards lap one end of a bell crank lever is lifted and the other end of lever
is therefore drawn forward. As this end is connected with the upright Jacquard
needle, the needle is brought in contact with the grife and the upward motion
of the grife lifts the needle. The needle being connected with the ordinary
fork stop motion the loom is therefore stopped automatically whenever the cards
lap. The improvement is further perfected by being attached to a special
motion. This motion is a crank which works in brackets attached to lower
front of "slay-board"" or "going-part." One end of the crank is connected by
a cord to the Jacquard needle; when the needle is raised or lifted this end of
the crank is drawn back and the other end is drawn down while the forward
movement of slay-board brings it in contact with a face-plate on the starting
handle of loom and stops the loom at once.
As Jacquard looms work at present, it is not an uncommon occurrence to find
as many as fifty cards wound round the cylinder and completely destroyed.
This improvement of ours can be fitted to any Jacquard loom now working.
We claim that our improvement will prevent the above loss of time and money.
Dated this 8th day of May 1899
Improvements in or connected with Loom Jacquards for Stopping
the Loom through Faulty Working of the Cards.
WILLIAM HEATON SNOWDEN, Holywell Cottage, Trinity Road, Foreman in
Silk Weaving, Halstead, Essex HARRY BRIGGS, 63, Owen Terrace, Overseer
in Silk Weaving, Halstead, Essex, do hereby declare the nature of this inven-
1077

page_text: tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
33
-
This improvement is a mechanism which derives its action from the upper
surface of the Jacquard cylinder (A) and is set in motion when the cards (B)
shift from their ordinary position and "lap or get on the top of the cylinder
pegs (C). Immediately the cards (1) lap one end of the bell crank lever (D)
is lifted and the other end (D") is therefore drawn forward. As this end is con-
nected with the upright Jacquard hooks (E) the hook is brought in contact
with the grife (F) and the upward motion of the grife lifts the hook. The
hook being connected to the bayonet of the ordinary fork stop motion (G Sheet 2)
the loom is therefore stopped automatically whenever the cards lap. The im-
provement is further perfected by being attached to a special motion (H). This
motion is a crank (H. Sheet 2) which works in brackets (L) on the lower front
of slayboard or going part (K). One end of crank (H) is worked in a slide (M).
This slide is connected by a cord to one end of the upright hooks (E). As soon
as the hook is lifted through faulty working of the cards He is drawn down to
face plate N and automatically stops the loom.
It will be seen that our improvement automatically stops the loom as soon as
the cards begin to lap and therefore prevents the cards from being torn it pre-
vents a waste of material; it saves time.
Having now particularly described the nature of our said invention, and in
what manner the same is to be performed, we declare that what we claim is:-
(1). The bell crank lever I which makes it impossible for the cards to lap.
(2) The special motion H which automatically stops the loom when the cards
begin to lap.
Dated this 19th day of September 1899.
WILLIAM HEATON SNOWDEN.
HARRY BRIGGS.