Year: 1886

page_text: Date of Application, 11th Dec., 1886
Complete Left, 11th Oct., 1887
Complete Accepted, 11th Nov., 1887
1, ARNOLD HUNERWADEL in the firm of Hunerwadel & Co. of Horgen, Switzerland,
Merchant, do hereby declare the nature of this invention to be as follows:-
In carrying out my invention two adjustable supports are screwed to the lathe one
at each end their upper ends have a plane provided with a slit in which are adjustable
bearings secured by screws. In the adjustable bearings work T shaped pieces the vertical
arms of which are bored to receive the guard rod in their lower ends. To one of the
vertical arms is attached a lever the free end of which is led in an inclined slit of a
slide piece which itself is guided in a groove of a plate secured to the lay board.
When out of operation the guard rod places itself below the lay board giving to the
weaver free access to the warp and reed; in pulling the slide to the right the lever
sinks downwards bringing the guard rod in the position in which the shuttle is
prevented from flying away from the going part of the loom.
This arrangement can be applied to looms where no temples are employed but
where such are used another disposition is necessary in order to bring the guard rod
in a more elevated position each time when the shuttle is entering the box which I
obtain in the following way.
The disposition of the supports and the bearings and the guard rod is the same as
above described but the lever is prolongated in the direction of the lathe and to it is
attached a wooden rod which drags in the guiding groove of an eccentric which is fast
on the crank-shaft of the loom.
By means of this eccentric the guard rod is brought into its guarding position
during the throw of the shuttle and places itself beneath the lay board when the shuttle
is in a box.
A guiding fork prevents the stick or rod from being thrown off the eccentric.
Where the construction of the looms permits the eccentric can be placed on the
crank shaft inside its bearings in which case the lever has no side prolongation and
is acted upon directly from the eccentric.
The adjustable supports may also be placed behind the lay board in which case the
guard rod has to be suitably bent over the lay board.
Dated this 11th day of December 1886
W. P. THOMPSON & BOULT,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Shuttle Guards for Looms.
I, ARNOLD HUNERWADEL in the firm of Hunerwadel & Co. of Horgen, Switzerland,
Merchant, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
This automatically working apparatus can be adapted to looms of every description
in introducing the necessary dispositions of such parts which require other forms or
proportions; the mode of working remaining the same in all cases.
The apparatus is shown in the annexed drawing by Fig. 1 side view, fig. 2 plan and
fig. 3 back view.
The motion is taken from an eccentric or cam a fastened to the fly wheel of the
loom on which slides a wooden rod b which is bent at 6' in order to leave sufficient
space between the rod and the fly wheel for the hand of the weaver to turn the latter.
The rod bis connected to the sleeve c which is fast on the small shaft d. This latter
turns in the bearings e e¹ giving a reciprocating motion to the lever f which is
provided with a slit at its top. The link rod g is jointed to lever fat one end and to
the T piece h at the other, which latter pivots in the bearing i fastened to the top of
the slay board k. The lower side of the T piece / takes up the guard rod m which
at its other end is fastened to the T piece h¹ pivoting in the bearing i¹.
connecting parts are made adjustable.
All the
When the loom is working the guard rod m receives an oscillating motion and
places itself beneath the slay-board (see figure 1) when the shuttle is in the box while
it takes the guarding position at n during the throw of the shuttle preventing it
flying out from the shuttle race of the loom. When the loom is stopped and the
weaver brings it in the position which is necessary for knitting threads etc. the
guard rod m is automatically brought to the required position shown by figure 1.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
In a shuttle guard for looms the combination of an eccentric or cam a bent rod b
connected to shaft d with its lever f and link rod ġ, oscillating guard rod m, fastened
to the T pieces h, h¹ pivoting in the bearings i, the whole constructed and
operating substantially as and for the purpose described and illustrated in the
accompanying drawings.
nh: 10th dose of October 1887