An Improved Shuttle Brake for Looms.
Year: 1898

page_text: Date of Application, 18th Jan., 1898-Accepted, 5th Mar., 1898
COMPLETE SPECIFICATION.
An Improved Shuttle Brake for Looms.
We, ADOLF AUGUST REINERT, of 13, Novo-Zarzewska, Lodz, Master Weaver,
and STANISLAW STÜCKGOLD, of 16, Zuravia, Warsaw, Engineer, all in the Russian
Empire, 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 invention relates to means for braking the throw of shuttles in looms,
which run with great force into the shuttle boxes, and the points of which are
liable to be broken off unless a braking power be applied. Numerous braking
devices have been constructed, belts of leather being generally used, but these
devices as constructed hitherto have many disadvantages. Leather is easily worn
out and must therefore be often renewed, which causes considerable expense;
further the belts have to be greased or oiled frequently and the grease and oil
spoils the fabric. The braking device constructed according to this invention
is free from these disadvantages.
In order that this invention may be the better understood, we now proceed to
describe the same, reference being had to the accompanying drawings and to the
letters and figures marked thereon.
Figure 1 is a back view of the device, the left side of the shuttle box being
seen from the rear.
Figure 2 is a plan corresponding to Figure 1.
Figures 3 and 4 show details.
A bearing a is provided at each side of the loom, behind the shuttle box, in which
rotates an axle b. The construction is alike at each side of the loom, therefore
only one side of the loom is shewn, viz:--the left side.
The axle carries a lever c outside the shuttle box. The lever c is jointed by
a connecting rod d to an angular lever e which pivots around a pin f. The axle b
has also a lug z or projecting arm arranged in the middle of the shuttle path. The
hook shaped end e¹ of the angular lever e is connected to a spring the other
end of which is attached to a hook, the screw threaded pin i¹ of which enters through
a bearing piece of the shuttle box. Between the hook shaped end e¹ and the pivot f
of the angular lever e is hinged a rod g which is adapted to move vertically up and
down in a guide h. As shown in Figures 3 and 4 the upper end of this vertically
movable rod 9 has a notch g¹. The notch g₁ corresponds with a slot h¹ of the
guide when the lug or projection z is turned down and the rod g is drawn down;
a knife edge lever m, pivotted on a pin m³, is adapted to engage in the notch g¹
and hold the rod g and also the lug or projection 2 in the position given thereto.
A spring k has the tendency to press the knife edge m continuously against the rod g.
When the shuttle s runs with great force into shuttle box, its point strikes the
picker, as shown Figures 1 and 2. The picker turns over the tongue, the whole
system of levers being moved, the spring i being brought into tension, and the rod g
drawn down. As soon as the notch g₁ corresponds with the slot h¹, the spring k
presses the knife m into the notch g¹ and the tongue remains in its ' turned

page_text: دو
over position, the whole lever system remaining in the changed position for a
time.
If the tongue were to spring back at once, the shuttle s could not remain in
the position last occupied, but would be thrown back again. In order to prevent
this it is necessary to hold the tongue z in the "turned over" position.
When the shuttle is now thrown again by the picker to pass into the opposite
shuttle box, it presses against a lever n pivotted around n¹, the position of which
lever is altered, the pressure of a spring ? being overcome. The knife edge m
is drawn out of the notch g'; the spring i coming into action again immediately
and drawing the various levers and the tongue z into the previous position ready for
action. The operation is repeated on the opposite side of the box.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is:-
A braking device for shuttles in looms consisting of a tongue z provided in
the shuttle path in the shuttle box at each side of the loom which is turned over by
the "running in" shuttle and adjusts a rod, by means of a system of levers e def,
overcoming the tension of a spring i; the rod g and the tongue z being held in the
new position by means of a knife edge detent m, and remaining in such position
until the shuttle, when running out of the shuttle box, disengages the knife edge m
and brings the spring i again into action, whereby the system of levers and the
tongue are drawn again into the position in which they are ready for action
substantially as described.
Dated this 18th day of January 1898